1use crate::{
2 ActiveDiagnostic, BlockId, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR,
3 ChunkRendererContext, ChunkReplacement, ContextMenuPlacement, CursorShape, CustomBlockId,
4 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
5 EditDisplayMode, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
6 FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput,
7 HoveredCursor, InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight,
8 LineUp, MAX_LINE_LEN, MIN_LINE_NUMBER_DIGITS, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts,
9 PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection,
10 SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold,
11 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
12 display_map::{
13 Block, BlockContext, BlockStyle, DisplaySnapshot, FoldId, HighlightedChunk, ToDisplayPoint,
14 },
15 editor_settings::{
16 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
17 ScrollbarAxes, ScrollbarDiagnostics, ShowScrollbar,
18 },
19 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
20 hover_popover::{
21 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
22 POPOVER_RIGHT_OFFSET, hover_at,
23 },
24 inlay_hint_settings,
25 items::BufferSearchHighlights,
26 mouse_context_menu::{self, MenuPosition},
27 scroll::scroll_amount::ScrollAmount,
28};
29use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
30use client::ParticipantIndex;
31use collections::{BTreeMap, HashMap};
32use feature_flags::{Debugger, FeatureFlagAppExt};
33use file_icons::FileIcons;
34use git::{Oid, blame::BlameEntry, status::FileStatus};
35use gpui::{
36 Action, Along, AnyElement, App, AvailableSpace, Axis as ScrollbarAxis, BorderStyle, Bounds,
37 ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges, Element,
38 ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox, Hsla,
39 InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
40 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
41 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
42 TextRun, TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill,
43 linear_color_stop, linear_gradient, outline, point, px, quad, relative, size, solid_background,
44 transparent_black,
45};
46use itertools::Itertools;
47use language::language_settings::{
48 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
49};
50use lsp::DiagnosticSeverity;
51use multi_buffer::{
52 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
53 MultiBufferRow, RowInfo,
54};
55use project::{
56 debugger::breakpoint_store::Breakpoint,
57 project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
58};
59use settings::Settings;
60use smallvec::{SmallVec, smallvec};
61use std::{
62 any::TypeId,
63 borrow::Cow,
64 cmp::{self, Ordering},
65 fmt::{self, Write},
66 iter, mem,
67 ops::{Deref, Range},
68 rc::Rc,
69 sync::Arc,
70 time::Duration,
71};
72use sum_tree::Bias;
73use text::BufferId;
74use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
75use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*};
76use unicode_segmentation::UnicodeSegmentation;
77use util::{RangeExt, ResultExt, debug_panic};
78use workspace::{Workspace, item::Item, notifications::NotifyTaskExt};
79
80const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
81
82/// Determines what kinds of highlights should be applied to a lines background.
83#[derive(Clone, Copy, Default)]
84struct LineHighlightSpec {
85 selection: bool,
86 breakpoint: bool,
87 _active_stack_frame: bool,
88}
89
90struct SelectionLayout {
91 head: DisplayPoint,
92 cursor_shape: CursorShape,
93 is_newest: bool,
94 is_local: bool,
95 range: Range<DisplayPoint>,
96 active_rows: Range<DisplayRow>,
97 user_name: Option<SharedString>,
98}
99
100impl SelectionLayout {
101 fn new<T: ToPoint + ToDisplayPoint + Clone>(
102 selection: Selection<T>,
103 line_mode: bool,
104 cursor_shape: CursorShape,
105 map: &DisplaySnapshot,
106 is_newest: bool,
107 is_local: bool,
108 user_name: Option<SharedString>,
109 ) -> Self {
110 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
111 let display_selection = point_selection.map(|p| p.to_display_point(map));
112 let mut range = display_selection.range();
113 let mut head = display_selection.head();
114 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
115 ..map.next_line_boundary(point_selection.end).1.row();
116
117 // vim visual line mode
118 if line_mode {
119 let point_range = map.expand_to_line(point_selection.range());
120 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
121 }
122
123 // any vim visual mode (including line mode)
124 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
125 && !range.is_empty()
126 && !selection.reversed
127 {
128 if head.column() > 0 {
129 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
130 } else if head.row().0 > 0 && head != map.max_point() {
131 head = map.clip_point(
132 DisplayPoint::new(
133 head.row().previous_row(),
134 map.line_len(head.row().previous_row()),
135 ),
136 Bias::Left,
137 );
138 // updating range.end is a no-op unless you're cursor is
139 // on the newline containing a multi-buffer divider
140 // in which case the clip_point may have moved the head up
141 // an additional row.
142 range.end = DisplayPoint::new(head.row().next_row(), 0);
143 active_rows.end = head.row();
144 }
145 }
146
147 Self {
148 head,
149 cursor_shape,
150 is_newest,
151 is_local,
152 range,
153 active_rows,
154 user_name,
155 }
156 }
157}
158
159pub struct EditorElement {
160 editor: Entity<Editor>,
161 style: EditorStyle,
162}
163
164type DisplayRowDelta = u32;
165
166impl EditorElement {
167 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
168
169 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
170 Self {
171 editor: editor.clone(),
172 style,
173 }
174 }
175
176 fn register_actions(&self, window: &mut Window, cx: &mut App) {
177 let editor = &self.editor;
178 editor.update(cx, |editor, cx| {
179 for action in editor.editor_actions.borrow().values() {
180 (action)(window, cx)
181 }
182 });
183
184 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
185 crate::clangd_ext::apply_related_actions(editor, window, cx);
186
187 register_action(editor, window, Editor::open_context_menu);
188 register_action(editor, window, Editor::move_left);
189 register_action(editor, window, Editor::move_right);
190 register_action(editor, window, Editor::move_down);
191 register_action(editor, window, Editor::move_down_by_lines);
192 register_action(editor, window, Editor::select_down_by_lines);
193 register_action(editor, window, Editor::move_up);
194 register_action(editor, window, Editor::move_up_by_lines);
195 register_action(editor, window, Editor::select_up_by_lines);
196 register_action(editor, window, Editor::select_page_down);
197 register_action(editor, window, Editor::select_page_up);
198 register_action(editor, window, Editor::cancel);
199 register_action(editor, window, Editor::newline);
200 register_action(editor, window, Editor::newline_above);
201 register_action(editor, window, Editor::newline_below);
202 register_action(editor, window, Editor::backspace);
203 register_action(editor, window, Editor::delete);
204 register_action(editor, window, Editor::tab);
205 register_action(editor, window, Editor::backtab);
206 register_action(editor, window, Editor::indent);
207 register_action(editor, window, Editor::outdent);
208 register_action(editor, window, Editor::autoindent);
209 register_action(editor, window, Editor::delete_line);
210 register_action(editor, window, Editor::join_lines);
211 register_action(editor, window, Editor::sort_lines_case_sensitive);
212 register_action(editor, window, Editor::sort_lines_case_insensitive);
213 register_action(editor, window, Editor::reverse_lines);
214 register_action(editor, window, Editor::shuffle_lines);
215 register_action(editor, window, Editor::toggle_case);
216 register_action(editor, window, Editor::convert_to_upper_case);
217 register_action(editor, window, Editor::convert_to_lower_case);
218 register_action(editor, window, Editor::convert_to_title_case);
219 register_action(editor, window, Editor::convert_to_snake_case);
220 register_action(editor, window, Editor::convert_to_kebab_case);
221 register_action(editor, window, Editor::convert_to_upper_camel_case);
222 register_action(editor, window, Editor::convert_to_lower_camel_case);
223 register_action(editor, window, Editor::convert_to_opposite_case);
224 register_action(editor, window, Editor::convert_to_rot13);
225 register_action(editor, window, Editor::convert_to_rot47);
226 register_action(editor, window, Editor::delete_to_previous_word_start);
227 register_action(editor, window, Editor::delete_to_previous_subword_start);
228 register_action(editor, window, Editor::delete_to_next_word_end);
229 register_action(editor, window, Editor::delete_to_next_subword_end);
230 register_action(editor, window, Editor::delete_to_beginning_of_line);
231 register_action(editor, window, Editor::delete_to_end_of_line);
232 register_action(editor, window, Editor::cut_to_end_of_line);
233 register_action(editor, window, Editor::duplicate_line_up);
234 register_action(editor, window, Editor::duplicate_line_down);
235 register_action(editor, window, Editor::duplicate_selection);
236 register_action(editor, window, Editor::move_line_up);
237 register_action(editor, window, Editor::move_line_down);
238 register_action(editor, window, Editor::transpose);
239 register_action(editor, window, Editor::rewrap);
240 register_action(editor, window, Editor::cut);
241 register_action(editor, window, Editor::kill_ring_cut);
242 register_action(editor, window, Editor::kill_ring_yank);
243 register_action(editor, window, Editor::copy);
244 register_action(editor, window, Editor::copy_and_trim);
245 register_action(editor, window, Editor::paste);
246 register_action(editor, window, Editor::undo);
247 register_action(editor, window, Editor::redo);
248 register_action(editor, window, Editor::move_page_up);
249 register_action(editor, window, Editor::move_page_down);
250 register_action(editor, window, Editor::next_screen);
251 register_action(editor, window, Editor::scroll_cursor_top);
252 register_action(editor, window, Editor::scroll_cursor_center);
253 register_action(editor, window, Editor::scroll_cursor_bottom);
254 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
255 register_action(editor, window, |editor, _: &LineDown, window, cx| {
256 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
257 });
258 register_action(editor, window, |editor, _: &LineUp, window, cx| {
259 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
260 });
261 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
262 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
263 });
264 register_action(
265 editor,
266 window,
267 |editor, HandleInput(text): &HandleInput, window, cx| {
268 if text.is_empty() {
269 return;
270 }
271 editor.handle_input(text, window, cx);
272 },
273 );
274 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
275 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
276 });
277 register_action(editor, window, |editor, _: &PageDown, window, cx| {
278 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
279 });
280 register_action(editor, window, |editor, _: &PageUp, window, cx| {
281 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
282 });
283 register_action(editor, window, Editor::move_to_previous_word_start);
284 register_action(editor, window, Editor::move_to_previous_subword_start);
285 register_action(editor, window, Editor::move_to_next_word_end);
286 register_action(editor, window, Editor::move_to_next_subword_end);
287 register_action(editor, window, Editor::move_to_beginning_of_line);
288 register_action(editor, window, Editor::move_to_end_of_line);
289 register_action(editor, window, Editor::move_to_start_of_paragraph);
290 register_action(editor, window, Editor::move_to_end_of_paragraph);
291 register_action(editor, window, Editor::move_to_beginning);
292 register_action(editor, window, Editor::move_to_end);
293 register_action(editor, window, Editor::move_to_start_of_excerpt);
294 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
295 register_action(editor, window, Editor::move_to_end_of_excerpt);
296 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
297 register_action(editor, window, Editor::select_up);
298 register_action(editor, window, Editor::select_down);
299 register_action(editor, window, Editor::select_left);
300 register_action(editor, window, Editor::select_right);
301 register_action(editor, window, Editor::select_to_previous_word_start);
302 register_action(editor, window, Editor::select_to_previous_subword_start);
303 register_action(editor, window, Editor::select_to_next_word_end);
304 register_action(editor, window, Editor::select_to_next_subword_end);
305 register_action(editor, window, Editor::select_to_beginning_of_line);
306 register_action(editor, window, Editor::select_to_end_of_line);
307 register_action(editor, window, Editor::select_to_start_of_paragraph);
308 register_action(editor, window, Editor::select_to_end_of_paragraph);
309 register_action(editor, window, Editor::select_to_start_of_excerpt);
310 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
311 register_action(editor, window, Editor::select_to_end_of_excerpt);
312 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
313 register_action(editor, window, Editor::select_to_beginning);
314 register_action(editor, window, Editor::select_to_end);
315 register_action(editor, window, Editor::select_all);
316 register_action(editor, window, |editor, action, window, cx| {
317 editor.select_all_matches(action, window, cx).log_err();
318 });
319 register_action(editor, window, Editor::select_line);
320 register_action(editor, window, Editor::split_selection_into_lines);
321 register_action(editor, window, Editor::add_selection_above);
322 register_action(editor, window, Editor::add_selection_below);
323 register_action(editor, window, |editor, action, window, cx| {
324 editor.select_next(action, window, cx).log_err();
325 });
326 register_action(editor, window, |editor, action, window, cx| {
327 editor.select_previous(action, window, cx).log_err();
328 });
329 register_action(editor, window, |editor, action, window, cx| {
330 editor.find_next_match(action, window, cx).log_err();
331 });
332 register_action(editor, window, |editor, action, window, cx| {
333 editor.find_previous_match(action, window, cx).log_err();
334 });
335 register_action(editor, window, Editor::toggle_comments);
336 register_action(editor, window, Editor::select_larger_syntax_node);
337 register_action(editor, window, Editor::select_smaller_syntax_node);
338 register_action(editor, window, Editor::select_enclosing_symbol);
339 register_action(editor, window, Editor::move_to_enclosing_bracket);
340 register_action(editor, window, Editor::undo_selection);
341 register_action(editor, window, Editor::redo_selection);
342 if !editor.read(cx).is_singleton(cx) {
343 register_action(editor, window, Editor::expand_excerpts);
344 register_action(editor, window, Editor::expand_excerpts_up);
345 register_action(editor, window, Editor::expand_excerpts_down);
346 }
347 register_action(editor, window, Editor::go_to_diagnostic);
348 register_action(editor, window, Editor::go_to_prev_diagnostic);
349 register_action(editor, window, Editor::go_to_next_hunk);
350 register_action(editor, window, Editor::go_to_prev_hunk);
351 register_action(editor, window, |editor, action, window, cx| {
352 editor
353 .go_to_definition(action, window, cx)
354 .detach_and_log_err(cx);
355 });
356 register_action(editor, window, |editor, action, window, cx| {
357 editor
358 .go_to_definition_split(action, window, cx)
359 .detach_and_log_err(cx);
360 });
361 register_action(editor, window, |editor, action, window, cx| {
362 editor
363 .go_to_declaration(action, window, cx)
364 .detach_and_log_err(cx);
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor
368 .go_to_declaration_split(action, window, cx)
369 .detach_and_log_err(cx);
370 });
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_implementation(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor
378 .go_to_implementation_split(action, window, cx)
379 .detach_and_log_err(cx);
380 });
381 register_action(editor, window, |editor, action, window, cx| {
382 editor
383 .go_to_type_definition(action, window, cx)
384 .detach_and_log_err(cx);
385 });
386 register_action(editor, window, |editor, action, window, cx| {
387 editor
388 .go_to_type_definition_split(action, window, cx)
389 .detach_and_log_err(cx);
390 });
391 register_action(editor, window, Editor::open_url);
392 register_action(editor, window, Editor::open_selected_filename);
393 register_action(editor, window, Editor::fold);
394 register_action(editor, window, Editor::fold_at_level);
395 register_action(editor, window, Editor::fold_all);
396 register_action(editor, window, Editor::fold_function_bodies);
397 register_action(editor, window, Editor::fold_recursive);
398 register_action(editor, window, Editor::toggle_fold);
399 register_action(editor, window, Editor::toggle_fold_recursive);
400 register_action(editor, window, Editor::unfold_lines);
401 register_action(editor, window, Editor::unfold_recursive);
402 register_action(editor, window, Editor::unfold_all);
403 register_action(editor, window, Editor::fold_selected_ranges);
404 register_action(editor, window, Editor::set_mark);
405 register_action(editor, window, Editor::swap_selection_ends);
406 register_action(editor, window, Editor::show_completions);
407 register_action(editor, window, Editor::show_word_completions);
408 register_action(editor, window, Editor::toggle_code_actions);
409 register_action(editor, window, Editor::open_excerpts);
410 register_action(editor, window, Editor::open_excerpts_in_split);
411 register_action(editor, window, Editor::open_proposed_changes_editor);
412 register_action(editor, window, Editor::toggle_soft_wrap);
413 register_action(editor, window, Editor::toggle_tab_bar);
414 register_action(editor, window, Editor::toggle_line_numbers);
415 register_action(editor, window, Editor::toggle_relative_line_numbers);
416 register_action(editor, window, Editor::toggle_indent_guides);
417 register_action(editor, window, Editor::toggle_inlay_hints);
418 register_action(editor, window, Editor::toggle_edit_predictions);
419 register_action(editor, window, Editor::toggle_inline_diagnostics);
420 register_action(editor, window, hover_popover::hover);
421 register_action(editor, window, Editor::reveal_in_finder);
422 register_action(editor, window, Editor::copy_path);
423 register_action(editor, window, Editor::copy_relative_path);
424 register_action(editor, window, Editor::copy_file_name);
425 register_action(editor, window, Editor::copy_file_name_without_extension);
426 register_action(editor, window, Editor::copy_highlight_json);
427 register_action(editor, window, Editor::copy_permalink_to_line);
428 register_action(editor, window, Editor::open_permalink_to_line);
429 register_action(editor, window, Editor::copy_file_location);
430 register_action(editor, window, Editor::toggle_git_blame);
431 register_action(editor, window, Editor::toggle_git_blame_inline);
432 register_action(editor, window, Editor::open_git_blame_commit);
433 register_action(editor, window, Editor::toggle_selected_diff_hunks);
434 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
435 register_action(editor, window, Editor::stage_and_next);
436 register_action(editor, window, Editor::unstage_and_next);
437 register_action(editor, window, Editor::expand_all_diff_hunks);
438
439 register_action(editor, window, |editor, action, window, cx| {
440 if let Some(task) = editor.format(action, window, cx) {
441 task.detach_and_notify_err(window, cx);
442 } else {
443 cx.propagate();
444 }
445 });
446 register_action(editor, window, |editor, action, window, cx| {
447 if let Some(task) = editor.format_selections(action, window, cx) {
448 task.detach_and_notify_err(window, cx);
449 } else {
450 cx.propagate();
451 }
452 });
453 register_action(editor, window, |editor, action, window, cx| {
454 if let Some(task) = editor.organize_imports(action, window, cx) {
455 task.detach_and_notify_err(window, cx);
456 } else {
457 cx.propagate();
458 }
459 });
460 register_action(editor, window, Editor::restart_language_server);
461 register_action(editor, window, Editor::stop_language_server);
462 register_action(editor, window, Editor::show_character_palette);
463 register_action(editor, window, |editor, action, window, cx| {
464 if let Some(task) = editor.confirm_completion(action, window, cx) {
465 task.detach_and_notify_err(window, cx);
466 } else {
467 cx.propagate();
468 }
469 });
470 register_action(editor, window, |editor, action, window, cx| {
471 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
472 task.detach_and_notify_err(window, cx);
473 } else {
474 cx.propagate();
475 }
476 });
477 register_action(editor, window, |editor, action, window, cx| {
478 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
479 task.detach_and_notify_err(window, cx);
480 } else {
481 cx.propagate();
482 }
483 });
484 register_action(editor, window, |editor, action, window, cx| {
485 if let Some(task) = editor.compose_completion(action, window, cx) {
486 task.detach_and_notify_err(window, cx);
487 } else {
488 cx.propagate();
489 }
490 });
491 register_action(editor, window, |editor, action, window, cx| {
492 if let Some(task) = editor.confirm_code_action(action, window, cx) {
493 task.detach_and_notify_err(window, cx);
494 } else {
495 cx.propagate();
496 }
497 });
498 register_action(editor, window, |editor, action, window, cx| {
499 if let Some(task) = editor.rename(action, window, cx) {
500 task.detach_and_notify_err(window, cx);
501 } else {
502 cx.propagate();
503 }
504 });
505 register_action(editor, window, |editor, action, window, cx| {
506 if let Some(task) = editor.confirm_rename(action, window, cx) {
507 task.detach_and_notify_err(window, cx);
508 } else {
509 cx.propagate();
510 }
511 });
512 register_action(editor, window, |editor, action, window, cx| {
513 if let Some(task) = editor.find_all_references(action, window, cx) {
514 task.detach_and_log_err(cx);
515 } else {
516 cx.propagate();
517 }
518 });
519 register_action(editor, window, Editor::show_signature_help);
520 register_action(editor, window, Editor::next_edit_prediction);
521 register_action(editor, window, Editor::previous_edit_prediction);
522 register_action(editor, window, Editor::show_inline_completion);
523 register_action(editor, window, Editor::context_menu_first);
524 register_action(editor, window, Editor::context_menu_prev);
525 register_action(editor, window, Editor::context_menu_next);
526 register_action(editor, window, Editor::context_menu_last);
527 register_action(editor, window, Editor::display_cursor_names);
528 register_action(editor, window, Editor::unique_lines_case_insensitive);
529 register_action(editor, window, Editor::unique_lines_case_sensitive);
530 register_action(editor, window, Editor::accept_partial_inline_completion);
531 register_action(editor, window, Editor::accept_edit_prediction);
532 register_action(editor, window, Editor::restore_file);
533 register_action(editor, window, Editor::git_restore);
534 register_action(editor, window, Editor::apply_all_diff_hunks);
535 register_action(editor, window, Editor::apply_selected_diff_hunks);
536 register_action(editor, window, Editor::open_active_item_in_terminal);
537 register_action(editor, window, Editor::reload_file);
538 register_action(editor, window, Editor::spawn_nearest_task);
539 register_action(editor, window, Editor::insert_uuid_v4);
540 register_action(editor, window, Editor::insert_uuid_v7);
541 register_action(editor, window, Editor::open_selections_in_multibuffer);
542 if cx.has_flag::<Debugger>() {
543 register_action(editor, window, Editor::toggle_breakpoint);
544 register_action(editor, window, Editor::edit_log_breakpoint);
545 register_action(editor, window, Editor::enable_breakpoint);
546 register_action(editor, window, Editor::disable_breakpoint);
547 }
548 }
549
550 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
551 let position_map = layout.position_map.clone();
552 window.on_key_event({
553 let editor = self.editor.clone();
554 move |event: &ModifiersChangedEvent, phase, window, cx| {
555 if phase != DispatchPhase::Bubble {
556 return;
557 }
558 editor.update(cx, |editor, cx| {
559 let inlay_hint_settings = inlay_hint_settings(
560 editor.selections.newest_anchor().head(),
561 &editor.buffer.read(cx).snapshot(cx),
562 cx,
563 );
564
565 if let Some(inlay_modifiers) = inlay_hint_settings
566 .toggle_on_modifiers_press
567 .as_ref()
568 .filter(|modifiers| modifiers.modified())
569 {
570 editor.refresh_inlay_hints(
571 InlayHintRefreshReason::ModifiersChanged(
572 inlay_modifiers == &event.modifiers,
573 ),
574 cx,
575 );
576 }
577
578 if editor.hover_state.focused(window, cx) {
579 return;
580 }
581
582 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
583 })
584 }
585 });
586 }
587
588 fn mouse_left_down(
589 editor: &mut Editor,
590 event: &MouseDownEvent,
591 hovered_hunk: Option<Range<Anchor>>,
592 position_map: &PositionMap,
593 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
594 window: &mut Window,
595 cx: &mut Context<Editor>,
596 ) {
597 if window.default_prevented() {
598 return;
599 }
600
601 let text_hitbox = &position_map.text_hitbox;
602 let gutter_hitbox = &position_map.gutter_hitbox;
603 let mut click_count = event.click_count;
604 let mut modifiers = event.modifiers;
605
606 if let Some(hovered_hunk) = hovered_hunk {
607 editor.toggle_single_diff_hunk(hovered_hunk, cx);
608 cx.notify();
609 return;
610 } else if gutter_hitbox.is_hovered(window) {
611 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
612 } else if !text_hitbox.is_hovered(window) {
613 return;
614 }
615
616 let is_singleton = editor.buffer().read(cx).is_singleton();
617
618 if click_count == 2 && !is_singleton {
619 match EditorSettings::get_global(cx).double_click_in_multibuffer {
620 DoubleClickInMultibuffer::Select => {
621 // do nothing special on double click, all selection logic is below
622 }
623 DoubleClickInMultibuffer::Open => {
624 if modifiers.alt {
625 // if double click is made with alt, pretend it's a regular double click without opening and alt,
626 // and run the selection logic.
627 modifiers.alt = false;
628 } else {
629 let scroll_position_row =
630 position_map.scroll_pixel_position.y / position_map.line_height;
631 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
632 + position_map.scroll_pixel_position.y)
633 / position_map.line_height)
634 as u32;
635 let multi_buffer_row = position_map
636 .snapshot
637 .display_point_to_point(
638 DisplayPoint::new(DisplayRow(display_row), 0),
639 Bias::Right,
640 )
641 .row;
642 let line_offset_from_top = display_row - scroll_position_row as u32;
643 // if double click is made without alt, open the corresponding excerp
644 editor.open_excerpts_common(
645 Some(JumpData::MultiBufferRow {
646 row: MultiBufferRow(multi_buffer_row),
647 line_offset_from_top,
648 }),
649 false,
650 window,
651 cx,
652 );
653 return;
654 }
655 }
656 }
657 }
658
659 let point_for_position = position_map.point_for_position(event.position);
660 let position = point_for_position.previous_valid;
661 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
662 editor.select(
663 SelectPhase::BeginColumnar {
664 position,
665 reset: false,
666 goal_column: point_for_position.exact_unclipped.column(),
667 },
668 window,
669 cx,
670 );
671 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
672 {
673 editor.select(
674 SelectPhase::Extend {
675 position,
676 click_count,
677 },
678 window,
679 cx,
680 );
681 } else {
682 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
683 let multi_cursor_modifier = match multi_cursor_setting {
684 MultiCursorModifier::Alt => modifiers.alt,
685 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
686 };
687 editor.select(
688 SelectPhase::Begin {
689 position,
690 add: multi_cursor_modifier,
691 click_count,
692 },
693 window,
694 cx,
695 );
696 }
697 cx.stop_propagation();
698
699 if !is_singleton {
700 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
701 + position_map.scroll_pixel_position.y)
702 / position_map.line_height) as u32;
703 let multi_buffer_row = position_map
704 .snapshot
705 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
706 .row;
707 if line_numbers
708 .get(&MultiBufferRow(multi_buffer_row))
709 .and_then(|line_number| line_number.hitbox.as_ref())
710 .is_some_and(|hitbox| hitbox.contains(&event.position))
711 {
712 let scroll_position_row =
713 position_map.scroll_pixel_position.y / position_map.line_height;
714 let line_offset_from_top = display_row - scroll_position_row as u32;
715
716 editor.open_excerpts_common(
717 Some(JumpData::MultiBufferRow {
718 row: MultiBufferRow(multi_buffer_row),
719 line_offset_from_top,
720 }),
721 modifiers.alt,
722 window,
723 cx,
724 );
725 cx.stop_propagation();
726 }
727 }
728 }
729
730 fn mouse_right_down(
731 editor: &mut Editor,
732 event: &MouseDownEvent,
733 position_map: &PositionMap,
734 window: &mut Window,
735 cx: &mut Context<Editor>,
736 ) {
737 if position_map.gutter_hitbox.is_hovered(window) {
738 let gutter_right_padding = editor.gutter_dimensions.right_padding;
739 let hitbox = &position_map.gutter_hitbox;
740
741 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
742 let point_for_position = position_map.point_for_position(event.position);
743 editor.set_breakpoint_context_menu(
744 point_for_position.previous_valid.row(),
745 None,
746 event.position,
747 window,
748 cx,
749 );
750 }
751 return;
752 }
753
754 if !position_map.text_hitbox.is_hovered(window) {
755 return;
756 }
757
758 let point_for_position = position_map.point_for_position(event.position);
759 mouse_context_menu::deploy_context_menu(
760 editor,
761 Some(event.position),
762 point_for_position.previous_valid,
763 window,
764 cx,
765 );
766 cx.stop_propagation();
767 }
768
769 fn mouse_middle_down(
770 editor: &mut Editor,
771 event: &MouseDownEvent,
772 position_map: &PositionMap,
773 window: &mut Window,
774 cx: &mut Context<Editor>,
775 ) {
776 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
777 return;
778 }
779
780 let point_for_position = position_map.point_for_position(event.position);
781 let position = point_for_position.previous_valid;
782
783 editor.select(
784 SelectPhase::BeginColumnar {
785 position,
786 reset: true,
787 goal_column: point_for_position.exact_unclipped.column(),
788 },
789 window,
790 cx,
791 );
792 }
793
794 fn mouse_up(
795 editor: &mut Editor,
796 event: &MouseUpEvent,
797 position_map: &PositionMap,
798 window: &mut Window,
799 cx: &mut Context<Editor>,
800 ) {
801 let text_hitbox = &position_map.text_hitbox;
802 let end_selection = editor.has_pending_selection();
803 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
804
805 if end_selection {
806 editor.select(SelectPhase::End, window, cx);
807 }
808
809 if end_selection && pending_nonempty_selections {
810 cx.stop_propagation();
811 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
812 && event.button == MouseButton::Middle
813 {
814 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
815 return;
816 }
817
818 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
819 if EditorSettings::get_global(cx).middle_click_paste {
820 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
821 let point_for_position = position_map.point_for_position(event.position);
822 let position = point_for_position.previous_valid;
823
824 editor.select(
825 SelectPhase::Begin {
826 position,
827 add: false,
828 click_count: 1,
829 },
830 window,
831 cx,
832 );
833 editor.insert(&text, window, cx);
834 }
835 cx.stop_propagation()
836 }
837 }
838 }
839
840 fn click(
841 editor: &mut Editor,
842 event: &ClickEvent,
843 position_map: &PositionMap,
844 window: &mut Window,
845 cx: &mut Context<Editor>,
846 ) {
847 let text_hitbox = &position_map.text_hitbox;
848 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
849
850 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
851 let multi_cursor_modifier = match multi_cursor_setting {
852 MultiCursorModifier::Alt => event.modifiers().secondary(),
853 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
854 };
855
856 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
857 let point = position_map.point_for_position(event.up.position);
858 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
859
860 cx.stop_propagation();
861 }
862 }
863
864 fn mouse_dragged(
865 editor: &mut Editor,
866 event: &MouseMoveEvent,
867 position_map: &PositionMap,
868 window: &mut Window,
869 cx: &mut Context<Editor>,
870 ) {
871 if !editor.has_pending_selection() {
872 return;
873 }
874
875 let text_bounds = position_map.text_hitbox.bounds;
876 let point_for_position = position_map.point_for_position(event.position);
877 let mut scroll_delta = gpui::Point::<f32>::default();
878 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
879 let top = text_bounds.origin.y + vertical_margin;
880 let bottom = text_bounds.bottom_left().y - vertical_margin;
881 if event.position.y < top {
882 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
883 }
884 if event.position.y > bottom {
885 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
886 }
887
888 // We need horizontal width of text
889 let style = editor.style.clone().unwrap_or_default();
890 let font_id = window.text_system().resolve_font(&style.text.font());
891 let font_size = style.text.font_size.to_pixels(window.rem_size());
892 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
893
894 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
895
896 let scroll_space: Pixels = scroll_margin_x * em_width;
897
898 let left = text_bounds.origin.x + scroll_space;
899 let right = text_bounds.top_right().x - scroll_space;
900
901 if event.position.x < left {
902 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
903 }
904 if event.position.x > right {
905 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
906 }
907
908 editor.select(
909 SelectPhase::Update {
910 position: point_for_position.previous_valid,
911 goal_column: point_for_position.exact_unclipped.column(),
912 scroll_delta,
913 },
914 window,
915 cx,
916 );
917 }
918
919 fn mouse_moved(
920 editor: &mut Editor,
921 event: &MouseMoveEvent,
922 position_map: &PositionMap,
923 window: &mut Window,
924 cx: &mut Context<Editor>,
925 ) {
926 let text_hitbox = &position_map.text_hitbox;
927 let gutter_hitbox = &position_map.gutter_hitbox;
928 let modifiers = event.modifiers;
929 let gutter_hovered = gutter_hitbox.is_hovered(window);
930 editor.set_gutter_hovered(gutter_hovered, cx);
931 editor.mouse_cursor_hidden = false;
932
933 if gutter_hovered {
934 let new_point = position_map
935 .point_for_position(event.position)
936 .previous_valid;
937 let buffer_anchor = position_map
938 .snapshot
939 .display_point_to_anchor(new_point, Bias::Left);
940
941 if position_map
942 .snapshot
943 .buffer_snapshot
944 .buffer_for_excerpt(buffer_anchor.excerpt_id)
945 .is_some_and(|buffer| buffer.file().is_some())
946 {
947 let was_hovered = editor.gutter_breakpoint_indicator.0.is_some();
948 let is_visible = editor
949 .gutter_breakpoint_indicator
950 .0
951 .map_or(false, |(_, is_active)| is_active);
952 editor.gutter_breakpoint_indicator.0 = Some((new_point, is_visible));
953
954 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
955 cx.spawn(async move |this, cx| {
956 if !was_hovered {
957 cx.background_executor()
958 .timer(Duration::from_millis(200))
959 .await;
960 }
961
962 this.update(cx, |this, cx| {
963 if let Some((_, is_active)) =
964 this.gutter_breakpoint_indicator.0.as_mut()
965 {
966 *is_active = true;
967 }
968
969 cx.notify();
970 })
971 .ok();
972 })
973 });
974 } else {
975 editor.gutter_breakpoint_indicator = (None, None);
976 }
977 } else {
978 editor.gutter_breakpoint_indicator = (None, None);
979 }
980
981 cx.notify();
982
983 // Don't trigger hover popover if mouse is hovering over context menu
984 if text_hitbox.is_hovered(window) {
985 let point_for_position = position_map.point_for_position(event.position);
986
987 editor.update_hovered_link(
988 point_for_position,
989 &position_map.snapshot,
990 modifiers,
991 window,
992 cx,
993 );
994
995 if let Some(point) = point_for_position.as_valid() {
996 let anchor = position_map
997 .snapshot
998 .buffer_snapshot
999 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1000 hover_at(editor, Some(anchor), window, cx);
1001 Self::update_visible_cursor(editor, point, position_map, window, cx);
1002 } else {
1003 hover_at(editor, None, window, cx);
1004 }
1005 } else {
1006 editor.hide_hovered_link(cx);
1007 hover_at(editor, None, window, cx);
1008 if gutter_hovered {
1009 cx.stop_propagation();
1010 }
1011 }
1012 }
1013
1014 fn update_visible_cursor(
1015 editor: &mut Editor,
1016 point: DisplayPoint,
1017 position_map: &PositionMap,
1018 window: &mut Window,
1019 cx: &mut Context<Editor>,
1020 ) {
1021 let snapshot = &position_map.snapshot;
1022 let Some(hub) = editor.collaboration_hub() else {
1023 return;
1024 };
1025 let start = snapshot.display_snapshot.clip_point(
1026 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1027 Bias::Left,
1028 );
1029 let end = snapshot.display_snapshot.clip_point(
1030 DisplayPoint::new(
1031 point.row(),
1032 (point.column() + 1).min(snapshot.line_len(point.row())),
1033 ),
1034 Bias::Right,
1035 );
1036
1037 let range = snapshot
1038 .buffer_snapshot
1039 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1040 ..snapshot
1041 .buffer_snapshot
1042 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1043
1044 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1045 return;
1046 };
1047 let key = crate::HoveredCursor {
1048 replica_id: selection.replica_id,
1049 selection_id: selection.selection.id,
1050 };
1051 editor.hovered_cursors.insert(
1052 key.clone(),
1053 cx.spawn_in(window, async move |editor, cx| {
1054 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1055 editor
1056 .update(cx, |editor, cx| {
1057 editor.hovered_cursors.remove(&key);
1058 cx.notify();
1059 })
1060 .ok();
1061 }),
1062 );
1063 cx.notify()
1064 }
1065
1066 fn layout_selections(
1067 &self,
1068 start_anchor: Anchor,
1069 end_anchor: Anchor,
1070 local_selections: &[Selection<Point>],
1071 snapshot: &EditorSnapshot,
1072 start_row: DisplayRow,
1073 end_row: DisplayRow,
1074 window: &mut Window,
1075 cx: &mut App,
1076 ) -> (
1077 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1078 BTreeMap<DisplayRow, LineHighlightSpec>,
1079 Option<DisplayPoint>,
1080 ) {
1081 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1082 let mut active_rows = BTreeMap::new();
1083 let mut newest_selection_head = None;
1084 self.editor.update(cx, |editor, cx| {
1085 if editor.show_local_selections {
1086 let mut layouts = Vec::new();
1087 let newest = editor.selections.newest(cx);
1088 for selection in local_selections.iter().cloned() {
1089 let is_empty = selection.start == selection.end;
1090 let is_newest = selection == newest;
1091
1092 let layout = SelectionLayout::new(
1093 selection,
1094 editor.selections.line_mode,
1095 editor.cursor_shape,
1096 &snapshot.display_snapshot,
1097 is_newest,
1098 editor.leader_peer_id.is_none(),
1099 None,
1100 );
1101 if is_newest {
1102 newest_selection_head = Some(layout.head);
1103 }
1104
1105 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1106 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1107 {
1108 let contains_non_empty_selection = active_rows
1109 .entry(DisplayRow(row))
1110 .or_insert_with(LineHighlightSpec::default);
1111 contains_non_empty_selection.selection |= !is_empty;
1112 }
1113 layouts.push(layout);
1114 }
1115
1116 let player = editor.current_user_player_color(cx);
1117 selections.push((player, layouts));
1118 }
1119
1120 if let Some(collaboration_hub) = &editor.collaboration_hub {
1121 // When following someone, render the local selections in their color.
1122 if let Some(leader_id) = editor.leader_peer_id {
1123 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1124 {
1125 if let Some(participant_index) = collaboration_hub
1126 .user_participant_indices(cx)
1127 .get(&collaborator.user_id)
1128 {
1129 if let Some((local_selection_style, _)) = selections.first_mut() {
1130 *local_selection_style = cx
1131 .theme()
1132 .players()
1133 .color_for_participant(participant_index.0);
1134 }
1135 }
1136 }
1137 }
1138
1139 let mut remote_selections = HashMap::default();
1140 for selection in snapshot.remote_selections_in_range(
1141 &(start_anchor..end_anchor),
1142 collaboration_hub.as_ref(),
1143 cx,
1144 ) {
1145 let selection_style =
1146 Self::get_participant_color(selection.participant_index, cx);
1147
1148 // Don't re-render the leader's selections, since the local selections
1149 // match theirs.
1150 if Some(selection.peer_id) == editor.leader_peer_id {
1151 continue;
1152 }
1153 let key = HoveredCursor {
1154 replica_id: selection.replica_id,
1155 selection_id: selection.selection.id,
1156 };
1157
1158 let is_shown =
1159 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1160
1161 remote_selections
1162 .entry(selection.replica_id)
1163 .or_insert((selection_style, Vec::new()))
1164 .1
1165 .push(SelectionLayout::new(
1166 selection.selection,
1167 selection.line_mode,
1168 selection.cursor_shape,
1169 &snapshot.display_snapshot,
1170 false,
1171 false,
1172 if is_shown { selection.user_name } else { None },
1173 ));
1174 }
1175
1176 selections.extend(remote_selections.into_values());
1177 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1178 let layouts = snapshot
1179 .buffer_snapshot
1180 .selections_in_range(&(start_anchor..end_anchor), true)
1181 .map(move |(_, line_mode, cursor_shape, selection)| {
1182 SelectionLayout::new(
1183 selection,
1184 line_mode,
1185 cursor_shape,
1186 &snapshot.display_snapshot,
1187 false,
1188 false,
1189 None,
1190 )
1191 })
1192 .collect::<Vec<_>>();
1193 let player = editor.current_user_player_color(cx);
1194 selections.push((player, layouts));
1195 }
1196 });
1197 (selections, active_rows, newest_selection_head)
1198 }
1199
1200 fn collect_cursors(
1201 &self,
1202 snapshot: &EditorSnapshot,
1203 cx: &mut App,
1204 ) -> Vec<(DisplayPoint, Hsla)> {
1205 let editor = self.editor.read(cx);
1206 let mut cursors = Vec::new();
1207 let mut skip_local = false;
1208 let mut add_cursor = |anchor: Anchor, color| {
1209 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1210 };
1211 // Remote cursors
1212 if let Some(collaboration_hub) = &editor.collaboration_hub {
1213 for remote_selection in snapshot.remote_selections_in_range(
1214 &(Anchor::min()..Anchor::max()),
1215 collaboration_hub.deref(),
1216 cx,
1217 ) {
1218 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1219 add_cursor(remote_selection.selection.head(), color.cursor);
1220 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1221 skip_local = true;
1222 }
1223 }
1224 }
1225 // Local cursors
1226 if !skip_local {
1227 let color = cx.theme().players().local().cursor;
1228 editor.selections.disjoint.iter().for_each(|selection| {
1229 add_cursor(selection.head(), color);
1230 });
1231 if let Some(ref selection) = editor.selections.pending_anchor() {
1232 add_cursor(selection.head(), color);
1233 }
1234 }
1235 cursors
1236 }
1237
1238 fn layout_visible_cursors(
1239 &self,
1240 snapshot: &EditorSnapshot,
1241 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1242 row_block_types: &HashMap<DisplayRow, bool>,
1243 visible_display_row_range: Range<DisplayRow>,
1244 line_layouts: &[LineWithInvisibles],
1245 text_hitbox: &Hitbox,
1246 content_origin: gpui::Point<Pixels>,
1247 scroll_position: gpui::Point<f32>,
1248 scroll_pixel_position: gpui::Point<Pixels>,
1249 line_height: Pixels,
1250 em_width: Pixels,
1251 em_advance: Pixels,
1252 autoscroll_containing_element: bool,
1253 window: &mut Window,
1254 cx: &mut App,
1255 ) -> Vec<CursorLayout> {
1256 let mut autoscroll_bounds = None;
1257 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1258 let mut cursors = Vec::new();
1259
1260 let show_local_cursors = editor.show_local_cursors(window, cx);
1261
1262 for (player_color, selections) in selections {
1263 for selection in selections {
1264 let cursor_position = selection.head;
1265
1266 let in_range = visible_display_row_range.contains(&cursor_position.row());
1267 if (selection.is_local && !show_local_cursors)
1268 || !in_range
1269 || row_block_types.get(&cursor_position.row()) == Some(&true)
1270 {
1271 continue;
1272 }
1273
1274 let cursor_row_layout = &line_layouts
1275 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1276 let cursor_column = cursor_position.column() as usize;
1277
1278 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1279 let mut block_width =
1280 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1281 if block_width == Pixels::ZERO {
1282 block_width = em_advance;
1283 }
1284 let block_text = if let CursorShape::Block = selection.cursor_shape {
1285 snapshot
1286 .grapheme_at(cursor_position)
1287 .or_else(|| {
1288 if cursor_column == 0 {
1289 snapshot.placeholder_text().and_then(|s| {
1290 s.graphemes(true).next().map(|s| s.to_string().into())
1291 })
1292 } else {
1293 None
1294 }
1295 })
1296 .and_then(|text| {
1297 let len = text.len();
1298
1299 let font = cursor_row_layout
1300 .font_id_for_index(cursor_column)
1301 .and_then(|cursor_font_id| {
1302 window.text_system().get_font_for_id(cursor_font_id)
1303 })
1304 .unwrap_or(self.style.text.font());
1305
1306 // Invert the text color for the block cursor. Ensure that the text
1307 // color is opaque enough to be visible against the background color.
1308 //
1309 // 0.75 is an arbitrary threshold to determine if the background color is
1310 // opaque enough to use as a text color.
1311 //
1312 // TODO: In the future we should ensure themes have a `text_inverse` color.
1313 let color = if cx.theme().colors().editor_background.a < 0.75 {
1314 match cx.theme().appearance {
1315 Appearance::Dark => Hsla::black(),
1316 Appearance::Light => Hsla::white(),
1317 }
1318 } else {
1319 cx.theme().colors().editor_background
1320 };
1321
1322 window
1323 .text_system()
1324 .shape_line(
1325 text,
1326 cursor_row_layout.font_size,
1327 &[TextRun {
1328 len,
1329 font,
1330 color,
1331 background_color: None,
1332 strikethrough: None,
1333 underline: None,
1334 }],
1335 )
1336 .log_err()
1337 })
1338 } else {
1339 None
1340 };
1341
1342 let x = cursor_character_x - scroll_pixel_position.x;
1343 let y = (cursor_position.row().as_f32()
1344 - scroll_pixel_position.y / line_height)
1345 * line_height;
1346 if selection.is_newest {
1347 editor.pixel_position_of_newest_cursor = Some(point(
1348 text_hitbox.origin.x + x + block_width / 2.,
1349 text_hitbox.origin.y + y + line_height / 2.,
1350 ));
1351
1352 if autoscroll_containing_element {
1353 let top = text_hitbox.origin.y
1354 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1355 * line_height;
1356 let left = text_hitbox.origin.x
1357 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1358 .max(0.)
1359 * em_width;
1360
1361 let bottom = text_hitbox.origin.y
1362 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1363 * line_height;
1364 let right = text_hitbox.origin.x
1365 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1366 * em_width;
1367
1368 autoscroll_bounds =
1369 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1370 }
1371 }
1372
1373 let mut cursor = CursorLayout {
1374 color: player_color.cursor,
1375 block_width,
1376 origin: point(x, y),
1377 line_height,
1378 shape: selection.cursor_shape,
1379 block_text,
1380 cursor_name: None,
1381 };
1382 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1383 string: name,
1384 color: self.style.background,
1385 is_top_row: cursor_position.row().0 == 0,
1386 });
1387 cursor.layout(content_origin, cursor_name, window, cx);
1388 cursors.push(cursor);
1389 }
1390 }
1391
1392 cursors
1393 });
1394
1395 if let Some(bounds) = autoscroll_bounds {
1396 window.request_autoscroll(bounds);
1397 }
1398
1399 cursor_layouts
1400 }
1401
1402 fn layout_scrollbars(
1403 &self,
1404 snapshot: &EditorSnapshot,
1405 scrollbar_layout_information: ScrollbarLayoutInformation,
1406 content_offset: gpui::Point<Pixels>,
1407 scroll_position: gpui::Point<f32>,
1408 non_visible_cursors: bool,
1409 window: &mut Window,
1410 cx: &mut App,
1411 ) -> Option<EditorScrollbars> {
1412 if !snapshot.mode.is_full() {
1413 return None;
1414 }
1415
1416 // If a drag took place after we started dragging the scrollbar,
1417 // cancel the scrollbar drag.
1418 if cx.has_active_drag() {
1419 self.editor.update(cx, |editor, cx| {
1420 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1421 });
1422 }
1423
1424 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1425 let show_scrollbars = self.editor.read(cx).show_scrollbars
1426 && match scrollbar_settings.show {
1427 ShowScrollbar::Auto => {
1428 let editor = self.editor.read(cx);
1429 let is_singleton = editor.is_singleton(cx);
1430 // Git
1431 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1432 ||
1433 // Buffer Search Results
1434 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1435 ||
1436 // Selected Text Occurrences
1437 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1438 ||
1439 // Selected Symbol Occurrences
1440 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1441 ||
1442 // Diagnostics
1443 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1444 ||
1445 // Cursors out of sight
1446 non_visible_cursors
1447 ||
1448 // Scrollmanager
1449 editor.scroll_manager.scrollbars_visible()
1450 }
1451 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1452 ShowScrollbar::Always => true,
1453 ShowScrollbar::Never => return None,
1454 };
1455
1456 Some(EditorScrollbars::from_scrollbar_axes(
1457 scrollbar_settings.axes,
1458 &scrollbar_layout_information,
1459 content_offset,
1460 scroll_position,
1461 self.style.scrollbar_width,
1462 show_scrollbars,
1463 window,
1464 ))
1465 }
1466
1467 fn prepaint_crease_toggles(
1468 &self,
1469 crease_toggles: &mut [Option<AnyElement>],
1470 line_height: Pixels,
1471 gutter_dimensions: &GutterDimensions,
1472 gutter_settings: crate::editor_settings::Gutter,
1473 scroll_pixel_position: gpui::Point<Pixels>,
1474 gutter_hitbox: &Hitbox,
1475 window: &mut Window,
1476 cx: &mut App,
1477 ) {
1478 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1479 if let Some(crease_toggle) = crease_toggle {
1480 debug_assert!(gutter_settings.folds);
1481 let available_space = size(
1482 AvailableSpace::MinContent,
1483 AvailableSpace::Definite(line_height * 0.55),
1484 );
1485 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1486
1487 let position = point(
1488 gutter_dimensions.width - gutter_dimensions.right_padding,
1489 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1490 );
1491 let centering_offset = point(
1492 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1493 (line_height - crease_toggle_size.height) / 2.,
1494 );
1495 let origin = gutter_hitbox.origin + position + centering_offset;
1496 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1497 }
1498 }
1499 }
1500
1501 fn prepaint_expand_toggles(
1502 &self,
1503 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1504 window: &mut Window,
1505 cx: &mut App,
1506 ) {
1507 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1508 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1509 expand_toggle.layout_as_root(available_space, window, cx);
1510 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1511 }
1512 }
1513
1514 fn prepaint_crease_trailers(
1515 &self,
1516 trailers: Vec<Option<AnyElement>>,
1517 lines: &[LineWithInvisibles],
1518 line_height: Pixels,
1519 content_origin: gpui::Point<Pixels>,
1520 scroll_pixel_position: gpui::Point<Pixels>,
1521 em_width: Pixels,
1522 window: &mut Window,
1523 cx: &mut App,
1524 ) -> Vec<Option<CreaseTrailerLayout>> {
1525 trailers
1526 .into_iter()
1527 .enumerate()
1528 .map(|(ix, element)| {
1529 let mut element = element?;
1530 let available_space = size(
1531 AvailableSpace::MinContent,
1532 AvailableSpace::Definite(line_height),
1533 );
1534 let size = element.layout_as_root(available_space, window, cx);
1535
1536 let line = &lines[ix];
1537 let padding = if line.width == Pixels::ZERO {
1538 Pixels::ZERO
1539 } else {
1540 4. * em_width
1541 };
1542 let position = point(
1543 scroll_pixel_position.x + line.width + padding,
1544 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1545 );
1546 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1547 let origin = content_origin + position + centering_offset;
1548 element.prepaint_as_root(origin, available_space, window, cx);
1549 Some(CreaseTrailerLayout {
1550 element,
1551 bounds: Bounds::new(origin, size),
1552 })
1553 })
1554 .collect()
1555 }
1556
1557 // Folds contained in a hunk are ignored apart from shrinking visual size
1558 // If a fold contains any hunks then that fold line is marked as modified
1559 fn layout_gutter_diff_hunks(
1560 &self,
1561 line_height: Pixels,
1562 gutter_hitbox: &Hitbox,
1563 display_rows: Range<DisplayRow>,
1564 snapshot: &EditorSnapshot,
1565 window: &mut Window,
1566 cx: &mut App,
1567 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1568 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1569 let mut display_hunks = snapshot
1570 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1571 .map(|hunk| (hunk, None))
1572 .collect::<Vec<_>>();
1573 let git_gutter_setting = ProjectSettings::get_global(cx)
1574 .git
1575 .git_gutter
1576 .unwrap_or_default();
1577 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1578 for (hunk, hitbox) in &mut display_hunks {
1579 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1580 let hunk_bounds =
1581 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1582 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1583 }
1584 }
1585 }
1586
1587 display_hunks
1588 }
1589
1590 fn layout_inline_diagnostics(
1591 &self,
1592 line_layouts: &[LineWithInvisibles],
1593 crease_trailers: &[Option<CreaseTrailerLayout>],
1594 row_block_types: &HashMap<DisplayRow, bool>,
1595 content_origin: gpui::Point<Pixels>,
1596 scroll_pixel_position: gpui::Point<Pixels>,
1597 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1598 start_row: DisplayRow,
1599 end_row: DisplayRow,
1600 line_height: Pixels,
1601 em_width: Pixels,
1602 style: &EditorStyle,
1603 window: &mut Window,
1604 cx: &mut App,
1605 ) -> HashMap<DisplayRow, AnyElement> {
1606 let max_severity = ProjectSettings::get_global(cx)
1607 .diagnostics
1608 .inline
1609 .max_severity
1610 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1611 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1612 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1613 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1614 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1615 });
1616
1617 let active_diagnostics_group =
1618 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
1619 Some(group.group_id)
1620 } else {
1621 None
1622 };
1623
1624 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1625 let snapshot = editor.snapshot(window, cx);
1626 editor
1627 .inline_diagnostics
1628 .iter()
1629 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1630 .filter(|(_, diagnostic)| match active_diagnostics_group {
1631 Some(active_diagnostics_group) => {
1632 // Active diagnostics are all shown in the editor already, no need to display them inline
1633 diagnostic.group_id != active_diagnostics_group
1634 }
1635 None => true,
1636 })
1637 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1638 .skip_while(|(point, _)| point.row() < start_row)
1639 .take_while(|(point, _)| point.row() < end_row)
1640 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
1641 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1642 acc.entry(point.row())
1643 .or_insert_with(Vec::new)
1644 .push(diagnostic);
1645 acc
1646 })
1647 });
1648
1649 if diagnostics_by_rows.is_empty() {
1650 return HashMap::default();
1651 }
1652
1653 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1654 &DiagnosticSeverity::ERROR => Color::Error,
1655 &DiagnosticSeverity::WARNING => Color::Warning,
1656 &DiagnosticSeverity::INFORMATION => Color::Info,
1657 &DiagnosticSeverity::HINT => Color::Hint,
1658 _ => Color::Error,
1659 };
1660
1661 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1662 let min_x = ProjectSettings::get_global(cx)
1663 .diagnostics
1664 .inline
1665 .min_column as f32
1666 * em_width;
1667
1668 let mut elements = HashMap::default();
1669 for (row, mut diagnostics) in diagnostics_by_rows {
1670 diagnostics.sort_by_key(|diagnostic| {
1671 (
1672 diagnostic.severity,
1673 std::cmp::Reverse(diagnostic.is_primary),
1674 diagnostic.start.row,
1675 diagnostic.start.column,
1676 )
1677 });
1678
1679 let Some(diagnostic_to_render) = diagnostics
1680 .iter()
1681 .find(|diagnostic| diagnostic.is_primary)
1682 .or_else(|| diagnostics.first())
1683 else {
1684 continue;
1685 };
1686
1687 let pos_y = content_origin.y
1688 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1689
1690 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1691 let pos_x = {
1692 let crease_trailer_layout = &crease_trailers[window_ix];
1693 let line_layout = &line_layouts[window_ix];
1694
1695 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1696 crease_trailer.bounds.right()
1697 } else {
1698 content_origin.x - scroll_pixel_position.x + line_layout.width
1699 };
1700
1701 let padded_line = line_end + padding;
1702 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1703
1704 cmp::max(padded_line, min_start)
1705 };
1706
1707 let behind_inline_completion_popover = inline_completion_popover_origin
1708 .as_ref()
1709 .map_or(false, |inline_completion_popover_origin| {
1710 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1711 });
1712 let opacity = if behind_inline_completion_popover {
1713 0.5
1714 } else {
1715 1.0
1716 };
1717
1718 let mut element = h_flex()
1719 .id(("diagnostic", row.0))
1720 .h(line_height)
1721 .w_full()
1722 .px_1()
1723 .rounded_xs()
1724 .opacity(opacity)
1725 .bg(severity_to_color(&diagnostic_to_render.severity)
1726 .color(cx)
1727 .opacity(0.05))
1728 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1729 .text_sm()
1730 .font_family(style.text.font().family)
1731 .child(diagnostic_to_render.message.clone())
1732 .into_any();
1733
1734 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1735
1736 elements.insert(row, element);
1737 }
1738
1739 elements
1740 }
1741
1742 fn layout_inline_blame(
1743 &self,
1744 display_row: DisplayRow,
1745 row_info: &RowInfo,
1746 line_layout: &LineWithInvisibles,
1747 crease_trailer: Option<&CreaseTrailerLayout>,
1748 em_width: Pixels,
1749 content_origin: gpui::Point<Pixels>,
1750 scroll_pixel_position: gpui::Point<Pixels>,
1751 line_height: Pixels,
1752 window: &mut Window,
1753 cx: &mut App,
1754 ) -> Option<AnyElement> {
1755 if !self
1756 .editor
1757 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1758 {
1759 return None;
1760 }
1761
1762 let editor = self.editor.read(cx);
1763 let blame = editor.blame.clone()?;
1764 let padding = {
1765 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1766 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1767
1768 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1769
1770 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1771 match &inline_completion.completion {
1772 InlineCompletion::Edit {
1773 display_mode: EditDisplayMode::TabAccept,
1774 ..
1775 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1776 _ => {}
1777 }
1778 }
1779
1780 padding * em_width
1781 };
1782
1783 let workspace = editor.workspace()?.downgrade();
1784 let blame_entry = blame
1785 .update(cx, |blame, cx| {
1786 blame.blame_for_rows(&[*row_info], cx).next()
1787 })
1788 .flatten()?;
1789
1790 let mut element = render_inline_blame_entry(
1791 self.editor.clone(),
1792 workspace,
1793 &blame,
1794 blame_entry,
1795 &self.style,
1796 cx,
1797 )?;
1798
1799 let start_y = content_origin.y
1800 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1801
1802 let start_x = {
1803 let line_end = if let Some(crease_trailer) = crease_trailer {
1804 crease_trailer.bounds.right()
1805 } else {
1806 content_origin.x - scroll_pixel_position.x + line_layout.width
1807 };
1808
1809 let padded_line_end = line_end + padding;
1810
1811 let min_column_in_pixels = ProjectSettings::get_global(cx)
1812 .git
1813 .inline_blame
1814 .and_then(|settings| settings.min_column)
1815 .map(|col| self.column_pixels(col as usize, window, cx))
1816 .unwrap_or(px(0.));
1817 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1818
1819 cmp::max(padded_line_end, min_start)
1820 };
1821
1822 let absolute_offset = point(start_x, start_y);
1823 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1824
1825 Some(element)
1826 }
1827
1828 fn layout_blame_entries(
1829 &self,
1830 buffer_rows: &[RowInfo],
1831 em_width: Pixels,
1832 scroll_position: gpui::Point<f32>,
1833 line_height: Pixels,
1834 gutter_hitbox: &Hitbox,
1835 max_width: Option<Pixels>,
1836 window: &mut Window,
1837 cx: &mut App,
1838 ) -> Option<Vec<AnyElement>> {
1839 if !self
1840 .editor
1841 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1842 {
1843 return None;
1844 }
1845
1846 let blame = self.editor.read(cx).blame.clone()?;
1847 let workspace = self.editor.read(cx).workspace()?;
1848 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1849 blame.blame_for_rows(buffer_rows, cx).collect()
1850 });
1851
1852 let width = if let Some(max_width) = max_width {
1853 AvailableSpace::Definite(max_width)
1854 } else {
1855 AvailableSpace::MaxContent
1856 };
1857 let scroll_top = scroll_position.y * line_height;
1858 let start_x = em_width;
1859
1860 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1861 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
1862
1863 let shaped_lines = blamed_rows
1864 .into_iter()
1865 .enumerate()
1866 .flat_map(|(ix, blame_entry)| {
1867 let mut element = render_blame_entry(
1868 ix,
1869 &blame,
1870 blame_entry?,
1871 &self.style,
1872 &mut last_used_color,
1873 self.editor.clone(),
1874 workspace.clone(),
1875 blame_renderer.clone(),
1876 cx,
1877 )?;
1878
1879 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1880 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1881
1882 element.prepaint_as_root(
1883 absolute_offset,
1884 size(width, AvailableSpace::MinContent),
1885 window,
1886 cx,
1887 );
1888
1889 Some(element)
1890 })
1891 .collect();
1892
1893 Some(shaped_lines)
1894 }
1895
1896 fn layout_indent_guides(
1897 &self,
1898 content_origin: gpui::Point<Pixels>,
1899 text_origin: gpui::Point<Pixels>,
1900 visible_buffer_range: Range<MultiBufferRow>,
1901 scroll_pixel_position: gpui::Point<Pixels>,
1902 line_height: Pixels,
1903 snapshot: &DisplaySnapshot,
1904 window: &mut Window,
1905 cx: &mut App,
1906 ) -> Option<Vec<IndentGuideLayout>> {
1907 let indent_guides = self.editor.update(cx, |editor, cx| {
1908 editor.indent_guides(visible_buffer_range, snapshot, cx)
1909 })?;
1910
1911 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1912 editor
1913 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1914 .unwrap_or_default()
1915 });
1916
1917 Some(
1918 indent_guides
1919 .into_iter()
1920 .enumerate()
1921 .filter_map(|(i, indent_guide)| {
1922 let single_indent_width =
1923 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1924 let total_width = single_indent_width * indent_guide.depth as f32;
1925 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1926 if start_x >= text_origin.x {
1927 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1928 indent_guide.start_row..indent_guide.end_row,
1929 line_height,
1930 snapshot,
1931 );
1932
1933 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1934
1935 Some(IndentGuideLayout {
1936 origin: point(start_x, start_y),
1937 length,
1938 single_indent_width,
1939 depth: indent_guide.depth,
1940 active: active_indent_guide_indices.contains(&i),
1941 settings: indent_guide.settings,
1942 })
1943 } else {
1944 None
1945 }
1946 })
1947 .collect(),
1948 )
1949 }
1950
1951 fn calculate_indent_guide_bounds(
1952 row_range: Range<MultiBufferRow>,
1953 line_height: Pixels,
1954 snapshot: &DisplaySnapshot,
1955 ) -> (gpui::Pixels, gpui::Pixels) {
1956 let start_point = Point::new(row_range.start.0, 0);
1957 let end_point = Point::new(row_range.end.0, 0);
1958
1959 let row_range = start_point.to_display_point(snapshot).row()
1960 ..end_point.to_display_point(snapshot).row();
1961
1962 let mut prev_line = start_point;
1963 prev_line.row = prev_line.row.saturating_sub(1);
1964 let prev_line = prev_line.to_display_point(snapshot).row();
1965
1966 let mut cons_line = end_point;
1967 cons_line.row += 1;
1968 let cons_line = cons_line.to_display_point(snapshot).row();
1969
1970 let mut offset_y = row_range.start.0 as f32 * line_height;
1971 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1972
1973 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1974 if row_range.end == cons_line {
1975 length += line_height;
1976 }
1977
1978 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1979 // we want to extend the indent guide to the start of the block.
1980 let mut block_height = 0;
1981 let mut block_offset = 0;
1982 let mut found_excerpt_header = false;
1983 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1984 if matches!(block, Block::ExcerptBoundary { .. }) {
1985 found_excerpt_header = true;
1986 break;
1987 }
1988 block_offset += block.height();
1989 block_height += block.height();
1990 }
1991 if !found_excerpt_header {
1992 offset_y -= block_offset as f32 * line_height;
1993 length += block_height as f32 * line_height;
1994 }
1995
1996 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1997 // we want to ensure that the indent guide stops before the excerpt header.
1998 let mut block_height = 0;
1999 let mut found_excerpt_header = false;
2000 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2001 if matches!(block, Block::ExcerptBoundary { .. }) {
2002 found_excerpt_header = true;
2003 }
2004 block_height += block.height();
2005 }
2006 if found_excerpt_header {
2007 length -= block_height as f32 * line_height;
2008 }
2009
2010 (offset_y, length)
2011 }
2012
2013 fn layout_breakpoints(
2014 &self,
2015 line_height: Pixels,
2016 range: Range<DisplayRow>,
2017 scroll_pixel_position: gpui::Point<Pixels>,
2018 gutter_dimensions: &GutterDimensions,
2019 gutter_hitbox: &Hitbox,
2020 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2021 snapshot: &EditorSnapshot,
2022 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
2023 row_infos: &[RowInfo],
2024 window: &mut Window,
2025 cx: &mut App,
2026 ) -> Vec<AnyElement> {
2027 self.editor.update(cx, |editor, cx| {
2028 breakpoints
2029 .into_iter()
2030 .filter_map(|(display_row, (text_anchor, bp))| {
2031 if row_infos
2032 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2033 .is_some_and(|row_info| {
2034 row_info.expand_info.is_some()
2035 || row_info
2036 .diff_status
2037 .is_some_and(|status| status.is_deleted())
2038 })
2039 {
2040 return None;
2041 }
2042
2043 if range.start > display_row || range.end < display_row {
2044 return None;
2045 }
2046
2047 let row =
2048 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2049 if snapshot.is_line_folded(row) {
2050 return None;
2051 }
2052
2053 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
2054
2055 let button = prepaint_gutter_button(
2056 button,
2057 display_row,
2058 line_height,
2059 gutter_dimensions,
2060 scroll_pixel_position,
2061 gutter_hitbox,
2062 display_hunks,
2063 window,
2064 cx,
2065 );
2066 Some(button)
2067 })
2068 .collect_vec()
2069 })
2070 }
2071
2072 #[allow(clippy::too_many_arguments)]
2073 fn layout_run_indicators(
2074 &self,
2075 line_height: Pixels,
2076 range: Range<DisplayRow>,
2077 row_infos: &[RowInfo],
2078 scroll_pixel_position: gpui::Point<Pixels>,
2079 gutter_dimensions: &GutterDimensions,
2080 gutter_hitbox: &Hitbox,
2081 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2082 snapshot: &EditorSnapshot,
2083 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2084 window: &mut Window,
2085 cx: &mut App,
2086 ) -> Vec<AnyElement> {
2087 self.editor.update(cx, |editor, cx| {
2088 let active_task_indicator_row =
2089 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2090 deployed_from_indicator,
2091 actions,
2092 ..
2093 })) = editor.context_menu.borrow().as_ref()
2094 {
2095 actions
2096 .tasks
2097 .as_ref()
2098 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2099 .or(*deployed_from_indicator)
2100 } else {
2101 None
2102 };
2103
2104 let offset_range_start =
2105 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2106
2107 let offset_range_end =
2108 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2109
2110 editor
2111 .tasks
2112 .iter()
2113 .filter_map(|(_, tasks)| {
2114 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2115 if multibuffer_point < offset_range_start
2116 || multibuffer_point > offset_range_end
2117 {
2118 return None;
2119 }
2120 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2121 let buffer_folded = snapshot
2122 .buffer_snapshot
2123 .buffer_line_for_row(multibuffer_row)
2124 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2125 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2126 .unwrap_or(false);
2127 if buffer_folded {
2128 return None;
2129 }
2130
2131 if snapshot.is_line_folded(multibuffer_row) {
2132 // Skip folded indicators, unless it's the starting line of a fold.
2133 if multibuffer_row
2134 .0
2135 .checked_sub(1)
2136 .map_or(false, |previous_row| {
2137 snapshot.is_line_folded(MultiBufferRow(previous_row))
2138 })
2139 {
2140 return None;
2141 }
2142 }
2143
2144 let display_row = multibuffer_point.to_display_point(snapshot).row();
2145 if row_infos
2146 .get((display_row - range.start).0 as usize)
2147 .is_some_and(|row_info| row_info.expand_info.is_some())
2148 {
2149 return None;
2150 }
2151
2152 let button = editor.render_run_indicator(
2153 &self.style,
2154 Some(display_row) == active_task_indicator_row,
2155 display_row,
2156 breakpoints.remove(&display_row),
2157 cx,
2158 );
2159
2160 let button = prepaint_gutter_button(
2161 button,
2162 display_row,
2163 line_height,
2164 gutter_dimensions,
2165 scroll_pixel_position,
2166 gutter_hitbox,
2167 display_hunks,
2168 window,
2169 cx,
2170 );
2171 Some(button)
2172 })
2173 .collect_vec()
2174 })
2175 }
2176
2177 fn layout_expand_toggles(
2178 &self,
2179 gutter_hitbox: &Hitbox,
2180 gutter_dimensions: GutterDimensions,
2181 em_width: Pixels,
2182 line_height: Pixels,
2183 scroll_position: gpui::Point<f32>,
2184 buffer_rows: &[RowInfo],
2185 window: &mut Window,
2186 cx: &mut App,
2187 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2188 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2189
2190 let scroll_top = scroll_position.y * line_height;
2191
2192 let max_line_number_length = self
2193 .editor
2194 .read(cx)
2195 .buffer()
2196 .read(cx)
2197 .snapshot(cx)
2198 .widest_line_number()
2199 .ilog10()
2200 + 1;
2201
2202 let elements = buffer_rows
2203 .into_iter()
2204 .enumerate()
2205 .map(|(ix, row_info)| {
2206 let ExpandInfo {
2207 excerpt_id,
2208 direction,
2209 } = row_info.expand_info?;
2210
2211 let icon_name = match direction {
2212 ExpandExcerptDirection::Up => IconName::ExpandUp,
2213 ExpandExcerptDirection::Down => IconName::ExpandDown,
2214 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2215 };
2216
2217 let git_gutter_width = Self::gutter_strip_width(line_height);
2218 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2219
2220 let editor = self.editor.clone();
2221 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2222 && row_info
2223 .buffer_row
2224 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2225 || gutter_dimensions.right_padding == px(0.);
2226
2227 let width = if is_wide {
2228 available_width - px(2.)
2229 } else {
2230 available_width + em_width - px(2.)
2231 };
2232
2233 let toggle = IconButton::new(("expand", ix), icon_name)
2234 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2235 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2236 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2237 .width(width.into())
2238 .on_click(move |_, window, cx| {
2239 editor.update(cx, |editor, cx| {
2240 editor.expand_excerpt(excerpt_id, direction, window, cx);
2241 });
2242 })
2243 .tooltip(Tooltip::for_action_title(
2244 "Expand Excerpt",
2245 &crate::actions::ExpandExcerpts::default(),
2246 ))
2247 .into_any_element();
2248
2249 let position = point(
2250 git_gutter_width + px(1.),
2251 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2252 );
2253 let origin = gutter_hitbox.origin + position;
2254
2255 Some((toggle, origin))
2256 })
2257 .collect();
2258
2259 elements
2260 }
2261
2262 fn layout_code_actions_indicator(
2263 &self,
2264 line_height: Pixels,
2265 newest_selection_head: DisplayPoint,
2266 scroll_pixel_position: gpui::Point<Pixels>,
2267 gutter_dimensions: &GutterDimensions,
2268 gutter_hitbox: &Hitbox,
2269 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2270 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2271 window: &mut Window,
2272 cx: &mut App,
2273 ) -> Option<AnyElement> {
2274 let mut active = false;
2275 let mut button = None;
2276 let row = newest_selection_head.row();
2277 self.editor.update(cx, |editor, cx| {
2278 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2279 deployed_from_indicator,
2280 ..
2281 })) = editor.context_menu.borrow().as_ref()
2282 {
2283 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2284 };
2285
2286 let breakpoint = breakpoint_points.get(&row);
2287 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2288 });
2289
2290 let button = button?;
2291 breakpoint_points.remove(&row);
2292
2293 let button = prepaint_gutter_button(
2294 button,
2295 row,
2296 line_height,
2297 gutter_dimensions,
2298 scroll_pixel_position,
2299 gutter_hitbox,
2300 display_hunks,
2301 window,
2302 cx,
2303 );
2304
2305 Some(button)
2306 }
2307
2308 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2309 if let Some(index) = participant_index {
2310 cx.theme().players().color_for_participant(index.0)
2311 } else {
2312 cx.theme().players().absent()
2313 }
2314 }
2315
2316 fn calculate_relative_line_numbers(
2317 &self,
2318 snapshot: &EditorSnapshot,
2319 rows: &Range<DisplayRow>,
2320 relative_to: Option<DisplayRow>,
2321 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2322 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2323 let Some(relative_to) = relative_to else {
2324 return relative_rows;
2325 };
2326
2327 let start = rows.start.min(relative_to);
2328 let end = rows.end.max(relative_to);
2329
2330 let buffer_rows = snapshot
2331 .row_infos(start)
2332 .take(1 + end.minus(start) as usize)
2333 .collect::<Vec<_>>();
2334
2335 let head_idx = relative_to.minus(start);
2336 let mut delta = 1;
2337 let mut i = head_idx + 1;
2338 while i < buffer_rows.len() as u32 {
2339 if buffer_rows[i as usize].buffer_row.is_some() {
2340 if rows.contains(&DisplayRow(i + start.0)) {
2341 relative_rows.insert(DisplayRow(i + start.0), delta);
2342 }
2343 delta += 1;
2344 }
2345 i += 1;
2346 }
2347 delta = 1;
2348 i = head_idx.min(buffer_rows.len() as u32 - 1);
2349 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2350 i -= 1;
2351 }
2352
2353 while i > 0 {
2354 i -= 1;
2355 if buffer_rows[i as usize].buffer_row.is_some() {
2356 if rows.contains(&DisplayRow(i + start.0)) {
2357 relative_rows.insert(DisplayRow(i + start.0), delta);
2358 }
2359 delta += 1;
2360 }
2361 }
2362
2363 relative_rows
2364 }
2365
2366 fn layout_line_numbers(
2367 &self,
2368 gutter_hitbox: Option<&Hitbox>,
2369 gutter_dimensions: GutterDimensions,
2370 line_height: Pixels,
2371 scroll_position: gpui::Point<f32>,
2372 rows: Range<DisplayRow>,
2373 buffer_rows: &[RowInfo],
2374 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2375 newest_selection_head: Option<DisplayPoint>,
2376 snapshot: &EditorSnapshot,
2377 window: &mut Window,
2378 cx: &mut App,
2379 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2380 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2381 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
2382 });
2383 if !include_line_numbers {
2384 return Arc::default();
2385 }
2386
2387 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2388 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2389 let newest = editor.selections.newest::<Point>(cx);
2390 SelectionLayout::new(
2391 newest,
2392 editor.selections.line_mode,
2393 editor.cursor_shape,
2394 &snapshot.display_snapshot,
2395 true,
2396 true,
2397 None,
2398 )
2399 .head
2400 });
2401 let is_relative = editor.should_use_relative_line_numbers(cx);
2402 (newest_selection_head, is_relative)
2403 });
2404
2405 let relative_to = if is_relative {
2406 Some(newest_selection_head.row())
2407 } else {
2408 None
2409 };
2410 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2411 let mut line_number = String::new();
2412 let line_numbers = buffer_rows
2413 .into_iter()
2414 .enumerate()
2415 .flat_map(|(ix, row_info)| {
2416 let display_row = DisplayRow(rows.start.0 + ix as u32);
2417 line_number.clear();
2418 let non_relative_number = row_info.buffer_row? + 1;
2419 let number = relative_rows
2420 .get(&display_row)
2421 .unwrap_or(&non_relative_number);
2422 write!(&mut line_number, "{number}").unwrap();
2423 if row_info
2424 .diff_status
2425 .is_some_and(|status| status.is_deleted())
2426 {
2427 return None;
2428 }
2429
2430 let color = active_rows
2431 .get(&display_row)
2432 .map(|spec| {
2433 if spec.breakpoint {
2434 cx.theme().colors().debugger_accent
2435 } else {
2436 cx.theme().colors().editor_active_line_number
2437 }
2438 })
2439 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2440 let shaped_line = self
2441 .shape_line_number(SharedString::from(&line_number), color, window)
2442 .log_err()?;
2443 let scroll_top = scroll_position.y * line_height;
2444 let line_origin = gutter_hitbox.map(|hitbox| {
2445 hitbox.origin
2446 + point(
2447 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2448 ix as f32 * line_height - (scroll_top % line_height),
2449 )
2450 });
2451
2452 #[cfg(not(test))]
2453 let hitbox = line_origin.map(|line_origin| {
2454 window.insert_hitbox(
2455 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2456 false,
2457 )
2458 });
2459 #[cfg(test)]
2460 let hitbox = {
2461 let _ = line_origin;
2462 None
2463 };
2464
2465 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2466 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2467 let line_number = LineNumberLayout {
2468 shaped_line,
2469 hitbox,
2470 };
2471 Some((multi_buffer_row, line_number))
2472 })
2473 .collect();
2474 Arc::new(line_numbers)
2475 }
2476
2477 fn layout_crease_toggles(
2478 &self,
2479 rows: Range<DisplayRow>,
2480 row_infos: &[RowInfo],
2481 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2482 snapshot: &EditorSnapshot,
2483 window: &mut Window,
2484 cx: &mut App,
2485 ) -> Vec<Option<AnyElement>> {
2486 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2487 && snapshot.mode.is_full()
2488 && self.editor.read(cx).is_singleton(cx);
2489 if include_fold_statuses {
2490 row_infos
2491 .into_iter()
2492 .enumerate()
2493 .map(|(ix, info)| {
2494 if info.expand_info.is_some() {
2495 return None;
2496 }
2497 let row = info.multibuffer_row?;
2498 let display_row = DisplayRow(rows.start.0 + ix as u32);
2499 let active = active_rows.contains_key(&display_row);
2500
2501 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2502 })
2503 .collect()
2504 } else {
2505 Vec::new()
2506 }
2507 }
2508
2509 fn layout_crease_trailers(
2510 &self,
2511 buffer_rows: impl IntoIterator<Item = RowInfo>,
2512 snapshot: &EditorSnapshot,
2513 window: &mut Window,
2514 cx: &mut App,
2515 ) -> Vec<Option<AnyElement>> {
2516 buffer_rows
2517 .into_iter()
2518 .map(|row_info| {
2519 if row_info.expand_info.is_some() {
2520 return None;
2521 }
2522 if let Some(row) = row_info.multibuffer_row {
2523 snapshot.render_crease_trailer(row, window, cx)
2524 } else {
2525 None
2526 }
2527 })
2528 .collect()
2529 }
2530
2531 fn layout_lines(
2532 rows: Range<DisplayRow>,
2533 snapshot: &EditorSnapshot,
2534 style: &EditorStyle,
2535 editor_width: Pixels,
2536 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2537 window: &mut Window,
2538 cx: &mut App,
2539 ) -> Vec<LineWithInvisibles> {
2540 if rows.start >= rows.end {
2541 return Vec::new();
2542 }
2543
2544 // Show the placeholder when the editor is empty
2545 if snapshot.is_empty() {
2546 let font_size = style.text.font_size.to_pixels(window.rem_size());
2547 let placeholder_color = cx.theme().colors().text_placeholder;
2548 let placeholder_text = snapshot.placeholder_text();
2549
2550 let placeholder_lines = placeholder_text
2551 .as_ref()
2552 .map_or("", AsRef::as_ref)
2553 .split('\n')
2554 .skip(rows.start.0 as usize)
2555 .chain(iter::repeat(""))
2556 .take(rows.len());
2557 placeholder_lines
2558 .filter_map(move |line| {
2559 let run = TextRun {
2560 len: line.len(),
2561 font: style.text.font(),
2562 color: placeholder_color,
2563 background_color: None,
2564 underline: Default::default(),
2565 strikethrough: None,
2566 };
2567 window
2568 .text_system()
2569 .shape_line(line.to_string().into(), font_size, &[run])
2570 .log_err()
2571 })
2572 .map(|line| LineWithInvisibles {
2573 width: line.width,
2574 len: line.len,
2575 fragments: smallvec![LineFragment::Text(line)],
2576 invisibles: Vec::new(),
2577 font_size,
2578 })
2579 .collect()
2580 } else {
2581 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2582 LineWithInvisibles::from_chunks(
2583 chunks,
2584 &style,
2585 MAX_LINE_LEN,
2586 rows.len(),
2587 snapshot.mode,
2588 editor_width,
2589 is_row_soft_wrapped,
2590 window,
2591 cx,
2592 )
2593 }
2594 }
2595
2596 fn prepaint_lines(
2597 &self,
2598 start_row: DisplayRow,
2599 line_layouts: &mut [LineWithInvisibles],
2600 line_height: Pixels,
2601 scroll_pixel_position: gpui::Point<Pixels>,
2602 content_origin: gpui::Point<Pixels>,
2603 window: &mut Window,
2604 cx: &mut App,
2605 ) -> SmallVec<[AnyElement; 1]> {
2606 let mut line_elements = SmallVec::new();
2607 for (ix, line) in line_layouts.iter_mut().enumerate() {
2608 let row = start_row + DisplayRow(ix as u32);
2609 line.prepaint(
2610 line_height,
2611 scroll_pixel_position,
2612 row,
2613 content_origin,
2614 &mut line_elements,
2615 window,
2616 cx,
2617 );
2618 }
2619 line_elements
2620 }
2621
2622 fn render_block(
2623 &self,
2624 block: &Block,
2625 available_width: AvailableSpace,
2626 block_id: BlockId,
2627 block_row_start: DisplayRow,
2628 snapshot: &EditorSnapshot,
2629 text_x: Pixels,
2630 rows: &Range<DisplayRow>,
2631 line_layouts: &[LineWithInvisibles],
2632 gutter_dimensions: &GutterDimensions,
2633 line_height: Pixels,
2634 em_width: Pixels,
2635 text_hitbox: &Hitbox,
2636 editor_width: Pixels,
2637 scroll_width: &mut Pixels,
2638 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2639 row_block_types: &mut HashMap<DisplayRow, bool>,
2640 selections: &[Selection<Point>],
2641 selected_buffer_ids: &Vec<BufferId>,
2642 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2643 sticky_header_excerpt_id: Option<ExcerptId>,
2644 window: &mut Window,
2645 cx: &mut App,
2646 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
2647 let mut x_position = None;
2648 let mut element = match block {
2649 Block::Custom(custom) => {
2650 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
2651 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
2652 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
2653 return None;
2654 }
2655 let align_to = block_start.to_display_point(snapshot);
2656 let x_and_width = |layout: &LineWithInvisibles| {
2657 Some((
2658 text_x + layout.x_for_index(align_to.column() as usize),
2659 text_x + layout.width,
2660 ))
2661 };
2662 x_position = if rows.contains(&align_to.row()) {
2663 x_and_width(&line_layouts[align_to.row().minus(rows.start) as usize])
2664 } else {
2665 x_and_width(&layout_line(
2666 align_to.row(),
2667 snapshot,
2668 &self.style,
2669 editor_width,
2670 is_row_soft_wrapped,
2671 window,
2672 cx,
2673 ))
2674 };
2675
2676 let anchor_x = x_position.unwrap().0;
2677
2678 let selected = selections
2679 .binary_search_by(|selection| {
2680 if selection.end <= block_start {
2681 Ordering::Less
2682 } else if selection.start >= block_end {
2683 Ordering::Greater
2684 } else {
2685 Ordering::Equal
2686 }
2687 })
2688 .is_ok();
2689
2690 div()
2691 .size_full()
2692 .child(custom.render(&mut BlockContext {
2693 window,
2694 app: cx,
2695 anchor_x,
2696 gutter_dimensions,
2697 line_height,
2698 em_width,
2699 block_id,
2700 selected,
2701 max_width: text_hitbox.size.width.max(*scroll_width),
2702 editor_style: &self.style,
2703 }))
2704 .into_any()
2705 }
2706
2707 Block::FoldedBuffer {
2708 first_excerpt,
2709 height,
2710 ..
2711 } => {
2712 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2713 let result = v_flex().id(block_id).w_full();
2714
2715 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2716 result
2717 .child(self.render_buffer_header(
2718 first_excerpt,
2719 true,
2720 selected,
2721 false,
2722 jump_data,
2723 window,
2724 cx,
2725 ))
2726 .into_any_element()
2727 }
2728
2729 Block::ExcerptBoundary {
2730 excerpt,
2731 height,
2732 starts_new_buffer,
2733 ..
2734 } => {
2735 let color = cx.theme().colors().clone();
2736 let mut result = v_flex().id(block_id).w_full();
2737
2738 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2739
2740 if *starts_new_buffer {
2741 if sticky_header_excerpt_id != Some(excerpt.id) {
2742 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2743
2744 result = result.child(self.render_buffer_header(
2745 excerpt, false, selected, false, jump_data, window, cx,
2746 ));
2747 } else {
2748 result =
2749 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2750 }
2751 } else {
2752 result = result.child(
2753 h_flex().relative().child(
2754 div()
2755 .top(line_height / 2.)
2756 .absolute()
2757 .w_full()
2758 .h_px()
2759 .bg(color.border_variant),
2760 ),
2761 );
2762 };
2763
2764 result.into_any()
2765 }
2766 };
2767
2768 // Discover the element's content height, then round up to the nearest multiple of line height.
2769 let preliminary_size = element.layout_as_root(
2770 size(available_width, AvailableSpace::MinContent),
2771 window,
2772 cx,
2773 );
2774 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2775 let final_size = if preliminary_size.height == quantized_height {
2776 preliminary_size
2777 } else {
2778 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2779 };
2780 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
2781
2782 let mut row = block_row_start;
2783 let mut x_offset = px(0.);
2784 let mut is_block = true;
2785
2786 if let BlockId::Custom(custom_block_id) = block_id {
2787 if block.has_height() {
2788 if block.place_near() {
2789 if let Some((x_target, line_width)) = x_position {
2790 let margin = em_width * 2;
2791 if line_width + final_size.width + margin
2792 < editor_width + gutter_dimensions.full_width()
2793 && !row_block_types.contains_key(&(row - 1))
2794 && element_height_in_lines == 1
2795 {
2796 x_offset = line_width + margin;
2797 row = row - 1;
2798 is_block = false;
2799 element_height_in_lines = 0;
2800 row_block_types.insert(row, is_block);
2801 } else {
2802 let max_offset =
2803 editor_width + gutter_dimensions.full_width() - final_size.width;
2804 let min_offset = (x_target + em_width - final_size.width)
2805 .max(gutter_dimensions.full_width());
2806 x_offset = x_target.min(max_offset).max(min_offset);
2807 }
2808 }
2809 };
2810 if element_height_in_lines != block.height() {
2811 resized_blocks.insert(custom_block_id, element_height_in_lines);
2812 }
2813 }
2814 }
2815 for i in 0..element_height_in_lines {
2816 row_block_types.insert(row + i, is_block);
2817 }
2818
2819 Some((element, final_size, row, x_offset))
2820 }
2821
2822 fn render_buffer_header(
2823 &self,
2824 for_excerpt: &ExcerptInfo,
2825 is_folded: bool,
2826 is_selected: bool,
2827 is_sticky: bool,
2828 jump_data: JumpData,
2829 window: &mut Window,
2830 cx: &mut App,
2831 ) -> Div {
2832 let editor = self.editor.read(cx);
2833 let file_status = editor
2834 .buffer
2835 .read(cx)
2836 .all_diff_hunks_expanded()
2837 .then(|| {
2838 editor
2839 .project
2840 .as_ref()?
2841 .read(cx)
2842 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2843 })
2844 .flatten();
2845
2846 let include_root = editor
2847 .project
2848 .as_ref()
2849 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2850 .unwrap_or_default();
2851 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
2852 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2853 let filename = path
2854 .as_ref()
2855 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2856 let parent_path = path.as_ref().and_then(|path| {
2857 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2858 });
2859 let focus_handle = editor.focus_handle(cx);
2860 let colors = cx.theme().colors();
2861
2862 div()
2863 .p_1()
2864 .w_full()
2865 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2866 .child(
2867 h_flex()
2868 .size_full()
2869 .gap_2()
2870 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2871 .pl_0p5()
2872 .pr_5()
2873 .rounded_sm()
2874 .when(is_sticky, |el| el.shadow_md())
2875 .border_1()
2876 .map(|div| {
2877 let border_color = if is_selected
2878 && is_folded
2879 && focus_handle.contains_focused(window, cx)
2880 {
2881 colors.border_focused
2882 } else {
2883 colors.border
2884 };
2885 div.border_color(border_color)
2886 })
2887 .bg(colors.editor_subheader_background)
2888 .hover(|style| style.bg(colors.element_hover))
2889 .map(|header| {
2890 let editor = self.editor.clone();
2891 let buffer_id = for_excerpt.buffer_id;
2892 let toggle_chevron_icon =
2893 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2894 header.child(
2895 div()
2896 .hover(|style| style.bg(colors.element_selected))
2897 .rounded_xs()
2898 .child(
2899 ButtonLike::new("toggle-buffer-fold")
2900 .style(ui::ButtonStyle::Transparent)
2901 .height(px(28.).into())
2902 .width(px(28.).into())
2903 .children(toggle_chevron_icon)
2904 .tooltip({
2905 let focus_handle = focus_handle.clone();
2906 move |window, cx| {
2907 Tooltip::for_action_in(
2908 "Toggle Excerpt Fold",
2909 &ToggleFold,
2910 &focus_handle,
2911 window,
2912 cx,
2913 )
2914 }
2915 })
2916 .on_click(move |_, _, cx| {
2917 if is_folded {
2918 editor.update(cx, |editor, cx| {
2919 editor.unfold_buffer(buffer_id, cx);
2920 });
2921 } else {
2922 editor.update(cx, |editor, cx| {
2923 editor.fold_buffer(buffer_id, cx);
2924 });
2925 }
2926 }),
2927 ),
2928 )
2929 })
2930 .children(
2931 editor
2932 .addons
2933 .values()
2934 .filter_map(|addon| {
2935 addon.render_buffer_header_controls(for_excerpt, window, cx)
2936 })
2937 .take(1),
2938 )
2939 .child(
2940 h_flex()
2941 .cursor_pointer()
2942 .id("path header block")
2943 .size_full()
2944 .justify_between()
2945 .child(
2946 h_flex()
2947 .gap_2()
2948 .child(
2949 Label::new(
2950 filename
2951 .map(SharedString::from)
2952 .unwrap_or_else(|| "untitled".into()),
2953 )
2954 .single_line()
2955 .when_some(
2956 file_status,
2957 |el, status| {
2958 el.color(if status.is_conflicted() {
2959 Color::Conflict
2960 } else if status.is_modified() {
2961 Color::Modified
2962 } else if status.is_deleted() {
2963 Color::Disabled
2964 } else {
2965 Color::Created
2966 })
2967 .when(status.is_deleted(), |el| el.strikethrough())
2968 },
2969 ),
2970 )
2971 .when_some(parent_path, |then, path| {
2972 then.child(div().child(path).text_color(
2973 if file_status.is_some_and(FileStatus::is_deleted) {
2974 colors.text_disabled
2975 } else {
2976 colors.text_muted
2977 },
2978 ))
2979 }),
2980 )
2981 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
2982 el.child(
2983 h_flex()
2984 .id("jump-to-file-button")
2985 .gap_2p5()
2986 .child(Label::new("Jump To File"))
2987 .children(
2988 KeyBinding::for_action_in(
2989 &OpenExcerpts,
2990 &focus_handle,
2991 window,
2992 cx,
2993 )
2994 .map(|binding| binding.into_any_element()),
2995 ),
2996 )
2997 })
2998 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2999 .on_click(window.listener_for(&self.editor, {
3000 move |editor, e: &ClickEvent, window, cx| {
3001 editor.open_excerpts_common(
3002 Some(jump_data.clone()),
3003 e.down.modifiers.secondary(),
3004 window,
3005 cx,
3006 );
3007 }
3008 })),
3009 ),
3010 )
3011 }
3012
3013 fn render_blocks(
3014 &self,
3015 rows: Range<DisplayRow>,
3016 snapshot: &EditorSnapshot,
3017 hitbox: &Hitbox,
3018 text_hitbox: &Hitbox,
3019 editor_width: Pixels,
3020 scroll_width: &mut Pixels,
3021 gutter_dimensions: &GutterDimensions,
3022 em_width: Pixels,
3023 text_x: Pixels,
3024 line_height: Pixels,
3025 line_layouts: &mut [LineWithInvisibles],
3026 selections: &[Selection<Point>],
3027 selected_buffer_ids: &Vec<BufferId>,
3028 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3029 sticky_header_excerpt_id: Option<ExcerptId>,
3030 window: &mut Window,
3031 cx: &mut App,
3032 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3033 let (fixed_blocks, non_fixed_blocks) = snapshot
3034 .blocks_in_range(rows.clone())
3035 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3036
3037 let mut focused_block = self
3038 .editor
3039 .update(cx, |editor, _| editor.take_focused_block());
3040 let mut fixed_block_max_width = Pixels::ZERO;
3041 let mut blocks = Vec::new();
3042 let mut resized_blocks = HashMap::default();
3043 let mut row_block_types = HashMap::default();
3044
3045 for (row, block) in fixed_blocks {
3046 let block_id = block.id();
3047
3048 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3049 focused_block = None;
3050 }
3051
3052 if let Some((element, element_size, row, x_offset)) = self.render_block(
3053 block,
3054 AvailableSpace::MinContent,
3055 block_id,
3056 row,
3057 snapshot,
3058 text_x,
3059 &rows,
3060 line_layouts,
3061 gutter_dimensions,
3062 line_height,
3063 em_width,
3064 text_hitbox,
3065 editor_width,
3066 scroll_width,
3067 &mut resized_blocks,
3068 &mut row_block_types,
3069 selections,
3070 selected_buffer_ids,
3071 is_row_soft_wrapped,
3072 sticky_header_excerpt_id,
3073 window,
3074 cx,
3075 ) {
3076 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3077 blocks.push(BlockLayout {
3078 id: block_id,
3079 x_offset,
3080 row: Some(row),
3081 element,
3082 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3083 style: BlockStyle::Fixed,
3084 overlaps_gutter: true,
3085 is_buffer_header: block.is_buffer_header(),
3086 });
3087 }
3088 }
3089
3090 for (row, block) in non_fixed_blocks {
3091 let style = block.style();
3092 let width = match (style, block.place_near()) {
3093 (_, true) => AvailableSpace::MinContent,
3094 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3095 (BlockStyle::Flex, _) => hitbox
3096 .size
3097 .width
3098 .max(fixed_block_max_width)
3099 .max(gutter_dimensions.width + *scroll_width)
3100 .into(),
3101 (BlockStyle::Fixed, _) => unreachable!(),
3102 };
3103 let block_id = block.id();
3104
3105 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3106 focused_block = None;
3107 }
3108
3109 if let Some((element, element_size, row, x_offset)) = self.render_block(
3110 block,
3111 width,
3112 block_id,
3113 row,
3114 snapshot,
3115 text_x,
3116 &rows,
3117 line_layouts,
3118 gutter_dimensions,
3119 line_height,
3120 em_width,
3121 text_hitbox,
3122 editor_width,
3123 scroll_width,
3124 &mut resized_blocks,
3125 &mut row_block_types,
3126 selections,
3127 selected_buffer_ids,
3128 is_row_soft_wrapped,
3129 sticky_header_excerpt_id,
3130 window,
3131 cx,
3132 ) {
3133 blocks.push(BlockLayout {
3134 id: block_id,
3135 x_offset,
3136 row: Some(row),
3137 element,
3138 available_space: size(width, element_size.height.into()),
3139 style,
3140 overlaps_gutter: !block.place_near(),
3141 is_buffer_header: block.is_buffer_header(),
3142 });
3143 }
3144 }
3145
3146 if let Some(focused_block) = focused_block {
3147 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3148 if focus_handle.is_focused(window) {
3149 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3150 let style = block.style();
3151 let width = match style {
3152 BlockStyle::Fixed => AvailableSpace::MinContent,
3153 BlockStyle::Flex => AvailableSpace::Definite(
3154 hitbox
3155 .size
3156 .width
3157 .max(fixed_block_max_width)
3158 .max(gutter_dimensions.width + *scroll_width),
3159 ),
3160 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3161 };
3162
3163 if let Some((element, element_size, _, x_offset)) = self.render_block(
3164 &block,
3165 width,
3166 focused_block.id,
3167 rows.end,
3168 snapshot,
3169 text_x,
3170 &rows,
3171 line_layouts,
3172 gutter_dimensions,
3173 line_height,
3174 em_width,
3175 text_hitbox,
3176 editor_width,
3177 scroll_width,
3178 &mut resized_blocks,
3179 &mut row_block_types,
3180 selections,
3181 selected_buffer_ids,
3182 is_row_soft_wrapped,
3183 sticky_header_excerpt_id,
3184 window,
3185 cx,
3186 ) {
3187 blocks.push(BlockLayout {
3188 id: block.id(),
3189 x_offset,
3190 row: None,
3191 element,
3192 available_space: size(width, element_size.height.into()),
3193 style,
3194 overlaps_gutter: true,
3195 is_buffer_header: block.is_buffer_header(),
3196 });
3197 }
3198 }
3199 }
3200 }
3201 }
3202
3203 if resized_blocks.is_empty() {
3204 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3205 Ok((blocks, row_block_types))
3206 } else {
3207 Err(resized_blocks)
3208 }
3209 }
3210
3211 fn layout_blocks(
3212 &self,
3213 blocks: &mut Vec<BlockLayout>,
3214 hitbox: &Hitbox,
3215 line_height: Pixels,
3216 scroll_pixel_position: gpui::Point<Pixels>,
3217 window: &mut Window,
3218 cx: &mut App,
3219 ) {
3220 for block in blocks {
3221 let mut origin = if let Some(row) = block.row {
3222 hitbox.origin
3223 + point(
3224 block.x_offset,
3225 row.as_f32() * line_height - scroll_pixel_position.y,
3226 )
3227 } else {
3228 // Position the block outside the visible area
3229 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3230 };
3231
3232 if !matches!(block.style, BlockStyle::Sticky) {
3233 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3234 }
3235
3236 let focus_handle =
3237 block
3238 .element
3239 .prepaint_as_root(origin, block.available_space, window, cx);
3240
3241 if let Some(focus_handle) = focus_handle {
3242 self.editor.update(cx, |editor, _cx| {
3243 editor.set_focused_block(FocusedBlock {
3244 id: block.id,
3245 focus_handle: focus_handle.downgrade(),
3246 });
3247 });
3248 }
3249 }
3250 }
3251
3252 fn layout_sticky_buffer_header(
3253 &self,
3254 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3255 scroll_position: f32,
3256 line_height: Pixels,
3257 snapshot: &EditorSnapshot,
3258 hitbox: &Hitbox,
3259 selected_buffer_ids: &Vec<BufferId>,
3260 blocks: &[BlockLayout],
3261 window: &mut Window,
3262 cx: &mut App,
3263 ) -> AnyElement {
3264 let jump_data = header_jump_data(
3265 snapshot,
3266 DisplayRow(scroll_position as u32),
3267 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3268 excerpt,
3269 );
3270
3271 let editor_bg_color = cx.theme().colors().editor_background;
3272
3273 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3274
3275 let mut header = v_flex()
3276 .relative()
3277 .child(
3278 div()
3279 .w(hitbox.bounds.size.width)
3280 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3281 .bg(linear_gradient(
3282 0.,
3283 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3284 linear_color_stop(editor_bg_color, 0.6),
3285 ))
3286 .absolute()
3287 .top_0(),
3288 )
3289 .child(
3290 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3291 .into_any_element(),
3292 )
3293 .into_any_element();
3294
3295 let mut origin = hitbox.origin;
3296 // Move floating header up to avoid colliding with the next buffer header.
3297 for block in blocks.iter() {
3298 if !block.is_buffer_header {
3299 continue;
3300 }
3301
3302 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3303 continue;
3304 };
3305
3306 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3307 let offset = scroll_position - max_row as f32;
3308
3309 if offset > 0.0 {
3310 origin.y -= offset * line_height;
3311 }
3312 break;
3313 }
3314
3315 let size = size(
3316 AvailableSpace::Definite(hitbox.size.width),
3317 AvailableSpace::MinContent,
3318 );
3319
3320 header.prepaint_as_root(origin, size, window, cx);
3321
3322 header
3323 }
3324
3325 fn layout_cursor_popovers(
3326 &self,
3327 line_height: Pixels,
3328 text_hitbox: &Hitbox,
3329 content_origin: gpui::Point<Pixels>,
3330 start_row: DisplayRow,
3331 scroll_pixel_position: gpui::Point<Pixels>,
3332 line_layouts: &[LineWithInvisibles],
3333 cursor: DisplayPoint,
3334 cursor_point: Point,
3335 style: &EditorStyle,
3336 window: &mut Window,
3337 cx: &mut App,
3338 ) {
3339 let mut min_menu_height = Pixels::ZERO;
3340 let mut max_menu_height = Pixels::ZERO;
3341 let mut height_above_menu = Pixels::ZERO;
3342 let height_below_menu = Pixels::ZERO;
3343 let mut edit_prediction_popover_visible = false;
3344 let mut context_menu_visible = false;
3345 let context_menu_placement;
3346
3347 {
3348 let editor = self.editor.read(cx);
3349 if editor
3350 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3351 {
3352 height_above_menu +=
3353 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3354 edit_prediction_popover_visible = true;
3355 }
3356
3357 if editor.context_menu_visible() {
3358 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3359 let (min_height_in_lines, max_height_in_lines) = editor
3360 .context_menu_options
3361 .as_ref()
3362 .map_or((3, 12), |options| {
3363 (options.min_entries_visible, options.max_entries_visible)
3364 });
3365
3366 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3367 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3368 context_menu_visible = true;
3369 }
3370 }
3371 context_menu_placement = editor
3372 .context_menu_options
3373 .as_ref()
3374 .and_then(|options| options.placement.clone());
3375 }
3376
3377 let visible = edit_prediction_popover_visible || context_menu_visible;
3378 if !visible {
3379 return;
3380 }
3381
3382 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3383 let target_position = content_origin
3384 + gpui::Point {
3385 x: cmp::max(
3386 px(0.),
3387 cursor_row_layout.x_for_index(cursor.column() as usize)
3388 - scroll_pixel_position.x,
3389 ),
3390 y: cmp::max(
3391 px(0.),
3392 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3393 ),
3394 };
3395
3396 let viewport_bounds =
3397 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3398 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3399 ..Default::default()
3400 });
3401
3402 let min_height = height_above_menu + min_menu_height + height_below_menu;
3403 let max_height = height_above_menu + max_menu_height + height_below_menu;
3404 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3405 target_position,
3406 line_height,
3407 min_height,
3408 max_height,
3409 context_menu_placement,
3410 text_hitbox,
3411 viewport_bounds,
3412 window,
3413 cx,
3414 |height, max_width_for_stable_x, y_flipped, window, cx| {
3415 // First layout the menu to get its size - others can be at least this wide.
3416 let context_menu = if context_menu_visible {
3417 let menu_height = if y_flipped {
3418 height - height_below_menu
3419 } else {
3420 height - height_above_menu
3421 };
3422 let mut element = self
3423 .render_context_menu(line_height, menu_height, window, cx)
3424 .expect("Visible context menu should always render.");
3425 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3426 Some((CursorPopoverType::CodeContextMenu, element, size))
3427 } else {
3428 None
3429 };
3430 let min_width = context_menu
3431 .as_ref()
3432 .map_or(px(0.), |(_, _, size)| size.width);
3433 let max_width = max_width_for_stable_x.max(
3434 context_menu
3435 .as_ref()
3436 .map_or(px(0.), |(_, _, size)| size.width),
3437 );
3438
3439 let edit_prediction = if edit_prediction_popover_visible {
3440 self.editor.update(cx, move |editor, cx| {
3441 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3442 let mut element = editor.render_edit_prediction_cursor_popover(
3443 min_width,
3444 max_width,
3445 cursor_point,
3446 style,
3447 accept_binding.keystroke(),
3448 window,
3449 cx,
3450 )?;
3451 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3452 Some((CursorPopoverType::EditPrediction, element, size))
3453 })
3454 } else {
3455 None
3456 };
3457 vec![edit_prediction, context_menu]
3458 .into_iter()
3459 .flatten()
3460 .collect::<Vec<_>>()
3461 },
3462 ) else {
3463 return;
3464 };
3465
3466 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3467 .iter()
3468 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3469 else {
3470 return;
3471 };
3472 let last_ix = laid_out_popovers.len() - 1;
3473 let menu_is_last = menu_ix == last_ix;
3474 let first_popover_bounds = laid_out_popovers[0].1;
3475 let last_popover_bounds = laid_out_popovers[last_ix].1;
3476
3477 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3478 // right, and otherwise it goes below or to the right.
3479 let mut target_bounds = Bounds::from_corners(
3480 first_popover_bounds.origin,
3481 last_popover_bounds.bottom_right(),
3482 );
3483 target_bounds.size.width = menu_bounds.size.width;
3484
3485 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3486 // based on this is preferred for layout stability.
3487 let mut max_target_bounds = target_bounds;
3488 max_target_bounds.size.height = max_height;
3489 if y_flipped {
3490 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3491 }
3492
3493 // Add spacing around `target_bounds` and `max_target_bounds`.
3494 let mut extend_amount = Edges::all(MENU_GAP);
3495 if y_flipped {
3496 extend_amount.bottom = line_height;
3497 } else {
3498 extend_amount.top = line_height;
3499 }
3500 let target_bounds = target_bounds.extend(extend_amount);
3501 let max_target_bounds = max_target_bounds.extend(extend_amount);
3502
3503 let must_place_above_or_below =
3504 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3505 laid_out_popovers[menu_ix + 1..]
3506 .iter()
3507 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3508 } else {
3509 false
3510 };
3511
3512 self.layout_context_menu_aside(
3513 y_flipped,
3514 *menu_bounds,
3515 target_bounds,
3516 max_target_bounds,
3517 max_menu_height,
3518 must_place_above_or_below,
3519 text_hitbox,
3520 viewport_bounds,
3521 window,
3522 cx,
3523 );
3524 }
3525
3526 fn layout_gutter_menu(
3527 &self,
3528 line_height: Pixels,
3529 text_hitbox: &Hitbox,
3530 content_origin: gpui::Point<Pixels>,
3531 scroll_pixel_position: gpui::Point<Pixels>,
3532 gutter_overshoot: Pixels,
3533 window: &mut Window,
3534 cx: &mut App,
3535 ) {
3536 let editor = self.editor.read(cx);
3537 if !editor.context_menu_visible() {
3538 return;
3539 }
3540 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3541 editor.context_menu_origin()
3542 else {
3543 return;
3544 };
3545 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3546 // indicator than just a plain first column of the text field.
3547 let target_position = content_origin
3548 + gpui::Point {
3549 x: -gutter_overshoot,
3550 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3551 };
3552
3553 let (min_height_in_lines, max_height_in_lines) = editor
3554 .context_menu_options
3555 .as_ref()
3556 .map_or((3, 12), |options| {
3557 (options.min_entries_visible, options.max_entries_visible)
3558 });
3559
3560 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3561 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3562 let viewport_bounds =
3563 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3564 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3565 ..Default::default()
3566 });
3567 self.layout_popovers_above_or_below_line(
3568 target_position,
3569 line_height,
3570 min_height,
3571 max_height,
3572 editor
3573 .context_menu_options
3574 .as_ref()
3575 .and_then(|options| options.placement.clone()),
3576 text_hitbox,
3577 viewport_bounds,
3578 window,
3579 cx,
3580 move |height, _max_width_for_stable_x, _, window, cx| {
3581 let mut element = self
3582 .render_context_menu(line_height, height, window, cx)
3583 .expect("Visible context menu should always render.");
3584 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3585 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3586 },
3587 );
3588 }
3589
3590 fn layout_popovers_above_or_below_line(
3591 &self,
3592 target_position: gpui::Point<Pixels>,
3593 line_height: Pixels,
3594 min_height: Pixels,
3595 max_height: Pixels,
3596 placement: Option<ContextMenuPlacement>,
3597 text_hitbox: &Hitbox,
3598 viewport_bounds: Bounds<Pixels>,
3599 window: &mut Window,
3600 cx: &mut App,
3601 make_sized_popovers: impl FnOnce(
3602 Pixels,
3603 Pixels,
3604 bool,
3605 &mut Window,
3606 &mut App,
3607 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3608 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3609 let text_style = TextStyleRefinement {
3610 line_height: Some(DefiniteLength::Fraction(
3611 BufferLineHeight::Comfortable.value(),
3612 )),
3613 ..Default::default()
3614 };
3615 window.with_text_style(Some(text_style), |window| {
3616 // If the max height won't fit below and there is more space above, put it above the line.
3617 let bottom_y_when_flipped = target_position.y - line_height;
3618 let available_above = bottom_y_when_flipped - text_hitbox.top();
3619 let available_below = text_hitbox.bottom() - target_position.y;
3620 let y_overflows_below = max_height > available_below;
3621 let mut y_flipped = match placement {
3622 Some(ContextMenuPlacement::Above) => true,
3623 Some(ContextMenuPlacement::Below) => false,
3624 None => y_overflows_below && available_above > available_below,
3625 };
3626 let mut height = cmp::min(
3627 max_height,
3628 if y_flipped {
3629 available_above
3630 } else {
3631 available_below
3632 },
3633 );
3634
3635 // If the min height doesn't fit within text bounds, instead fit within the window.
3636 if height < min_height {
3637 let available_above = bottom_y_when_flipped;
3638 let available_below = viewport_bounds.bottom() - target_position.y;
3639 let (y_flipped_override, height_override) = match placement {
3640 Some(ContextMenuPlacement::Above) => {
3641 (true, cmp::min(available_above, min_height))
3642 }
3643 Some(ContextMenuPlacement::Below) => {
3644 (false, cmp::min(available_below, min_height))
3645 }
3646 None => {
3647 if available_below > min_height {
3648 (false, min_height)
3649 } else if available_above > min_height {
3650 (true, min_height)
3651 } else if available_above > available_below {
3652 (true, available_above)
3653 } else {
3654 (false, available_below)
3655 }
3656 }
3657 };
3658 y_flipped = y_flipped_override;
3659 height = height_override;
3660 }
3661
3662 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3663
3664 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3665 // for very narrow windows.
3666 let popovers =
3667 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3668 if popovers.is_empty() {
3669 return None;
3670 }
3671
3672 let max_width = popovers
3673 .iter()
3674 .map(|(_, _, size)| size.width)
3675 .max()
3676 .unwrap_or_default();
3677
3678 let mut current_position = gpui::Point {
3679 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3680 // overflow. Include space for the scrollbar.
3681 x: target_position
3682 .x
3683 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3684 y: if y_flipped {
3685 bottom_y_when_flipped
3686 } else {
3687 target_position.y
3688 },
3689 };
3690
3691 let mut laid_out_popovers = popovers
3692 .into_iter()
3693 .map(|(popover_type, element, size)| {
3694 if y_flipped {
3695 current_position.y -= size.height;
3696 }
3697 let position = current_position;
3698 window.defer_draw(element, current_position, 1);
3699 if !y_flipped {
3700 current_position.y += size.height + MENU_GAP;
3701 } else {
3702 current_position.y -= MENU_GAP;
3703 }
3704 (popover_type, Bounds::new(position, size))
3705 })
3706 .collect::<Vec<_>>();
3707
3708 if y_flipped {
3709 laid_out_popovers.reverse();
3710 }
3711
3712 Some((laid_out_popovers, y_flipped))
3713 })
3714 }
3715
3716 fn layout_context_menu_aside(
3717 &self,
3718 y_flipped: bool,
3719 menu_bounds: Bounds<Pixels>,
3720 target_bounds: Bounds<Pixels>,
3721 max_target_bounds: Bounds<Pixels>,
3722 max_height: Pixels,
3723 must_place_above_or_below: bool,
3724 text_hitbox: &Hitbox,
3725 viewport_bounds: Bounds<Pixels>,
3726 window: &mut Window,
3727 cx: &mut App,
3728 ) {
3729 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3730 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3731 && !must_place_above_or_below
3732 {
3733 let max_width = cmp::min(
3734 available_within_viewport.right - px(1.),
3735 MENU_ASIDE_MAX_WIDTH,
3736 );
3737 let Some(mut aside) = self.render_context_menu_aside(
3738 size(max_width, max_height - POPOVER_Y_PADDING),
3739 window,
3740 cx,
3741 ) else {
3742 return;
3743 };
3744 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3745 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3746 Some((aside, right_position))
3747 } else {
3748 let max_size = size(
3749 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3750 // won't be needed here.
3751 cmp::min(
3752 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3753 viewport_bounds.right(),
3754 ),
3755 cmp::min(
3756 max_height,
3757 cmp::max(
3758 available_within_viewport.top,
3759 available_within_viewport.bottom,
3760 ),
3761 ) - POPOVER_Y_PADDING,
3762 );
3763 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3764 return;
3765 };
3766 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3767
3768 let top_position = point(
3769 menu_bounds.origin.x,
3770 target_bounds.top() - actual_size.height,
3771 );
3772 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3773
3774 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3775 // Prefer to fit on the same side of the line as the menu, then on the other side of
3776 // the line.
3777 if !y_flipped && wanted.height < available.bottom {
3778 Some(bottom_position)
3779 } else if !y_flipped && wanted.height < available.top {
3780 Some(top_position)
3781 } else if y_flipped && wanted.height < available.top {
3782 Some(top_position)
3783 } else if y_flipped && wanted.height < available.bottom {
3784 Some(bottom_position)
3785 } else {
3786 None
3787 }
3788 };
3789
3790 // Prefer choosing a direction using max sizes rather than actual size for stability.
3791 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3792 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3793 let aside_position = fit_within(available_within_text, wanted)
3794 // Fallback: fit max size in window.
3795 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3796 // Fallback: fit actual size in window.
3797 .or_else(|| fit_within(available_within_viewport, actual_size));
3798
3799 aside_position.map(|position| (aside, position))
3800 };
3801
3802 // Skip drawing if it doesn't fit anywhere.
3803 if let Some((aside, position)) = positioned_aside {
3804 window.defer_draw(aside, position, 2);
3805 }
3806 }
3807
3808 fn render_context_menu(
3809 &self,
3810 line_height: Pixels,
3811 height: Pixels,
3812 window: &mut Window,
3813 cx: &mut App,
3814 ) -> Option<AnyElement> {
3815 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3816 self.editor.update(cx, |editor, cx| {
3817 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
3818 })
3819 }
3820
3821 fn render_context_menu_aside(
3822 &self,
3823 max_size: Size<Pixels>,
3824 window: &mut Window,
3825 cx: &mut App,
3826 ) -> Option<AnyElement> {
3827 if max_size.width < px(100.) || max_size.height < px(12.) {
3828 None
3829 } else {
3830 self.editor.update(cx, |editor, cx| {
3831 editor.render_context_menu_aside(max_size, window, cx)
3832 })
3833 }
3834 }
3835
3836 fn layout_mouse_context_menu(
3837 &self,
3838 editor_snapshot: &EditorSnapshot,
3839 visible_range: Range<DisplayRow>,
3840 content_origin: gpui::Point<Pixels>,
3841 window: &mut Window,
3842 cx: &mut App,
3843 ) -> Option<AnyElement> {
3844 let position = self.editor.update(cx, |editor, _cx| {
3845 let visible_start_point = editor.display_to_pixel_point(
3846 DisplayPoint::new(visible_range.start, 0),
3847 editor_snapshot,
3848 window,
3849 )?;
3850 let visible_end_point = editor.display_to_pixel_point(
3851 DisplayPoint::new(visible_range.end, 0),
3852 editor_snapshot,
3853 window,
3854 )?;
3855
3856 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3857 let (source_display_point, position) = match mouse_context_menu.position {
3858 MenuPosition::PinnedToScreen(point) => (None, point),
3859 MenuPosition::PinnedToEditor { source, offset } => {
3860 let source_display_point = source.to_display_point(editor_snapshot);
3861 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3862 let position = content_origin + source_point + offset;
3863 (Some(source_display_point), position)
3864 }
3865 };
3866
3867 let source_included = source_display_point.map_or(true, |source_display_point| {
3868 visible_range
3869 .to_inclusive()
3870 .contains(&source_display_point.row())
3871 });
3872 let position_included =
3873 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3874 if !source_included && !position_included {
3875 None
3876 } else {
3877 Some(position)
3878 }
3879 })?;
3880
3881 let text_style = TextStyleRefinement {
3882 line_height: Some(DefiniteLength::Fraction(
3883 BufferLineHeight::Comfortable.value(),
3884 )),
3885 ..Default::default()
3886 };
3887 window.with_text_style(Some(text_style), |window| {
3888 let mut element = self.editor.update(cx, |editor, _| {
3889 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3890 let context_menu = mouse_context_menu.context_menu.clone();
3891
3892 Some(
3893 deferred(
3894 anchored()
3895 .position(position)
3896 .child(context_menu)
3897 .anchor(Corner::TopLeft)
3898 .snap_to_window_with_margin(px(8.)),
3899 )
3900 .with_priority(1)
3901 .into_any(),
3902 )
3903 })?;
3904
3905 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3906 Some(element)
3907 })
3908 }
3909
3910 fn layout_hover_popovers(
3911 &self,
3912 snapshot: &EditorSnapshot,
3913 hitbox: &Hitbox,
3914 text_hitbox: &Hitbox,
3915 visible_display_row_range: Range<DisplayRow>,
3916 content_origin: gpui::Point<Pixels>,
3917 scroll_pixel_position: gpui::Point<Pixels>,
3918 line_layouts: &[LineWithInvisibles],
3919 line_height: Pixels,
3920 em_width: Pixels,
3921 window: &mut Window,
3922 cx: &mut App,
3923 ) {
3924 struct MeasuredHoverPopover {
3925 element: AnyElement,
3926 size: Size<Pixels>,
3927 horizontal_offset: Pixels,
3928 }
3929
3930 let max_size = size(
3931 (120. * em_width) // Default size
3932 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3933 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3934 (16. * line_height) // Default size
3935 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3936 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3937 );
3938
3939 let hover_popovers = self.editor.update(cx, |editor, cx| {
3940 editor.hover_state.render(
3941 snapshot,
3942 visible_display_row_range.clone(),
3943 max_size,
3944 window,
3945 cx,
3946 )
3947 });
3948 let Some((position, hover_popovers)) = hover_popovers else {
3949 return;
3950 };
3951
3952 // This is safe because we check on layout whether the required row is available
3953 let hovered_row_layout =
3954 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3955
3956 // Compute Hovered Point
3957 let x =
3958 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3959 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3960 let hovered_point = content_origin + point(x, y);
3961
3962 let mut overall_height = Pixels::ZERO;
3963 let mut measured_hover_popovers = Vec::new();
3964 for mut hover_popover in hover_popovers {
3965 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3966 let horizontal_offset =
3967 (text_hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
3968 .min(Pixels::ZERO);
3969
3970 overall_height += HOVER_POPOVER_GAP + size.height;
3971
3972 measured_hover_popovers.push(MeasuredHoverPopover {
3973 element: hover_popover,
3974 size,
3975 horizontal_offset,
3976 });
3977 }
3978 overall_height += HOVER_POPOVER_GAP;
3979
3980 fn draw_occluder(
3981 width: Pixels,
3982 origin: gpui::Point<Pixels>,
3983 window: &mut Window,
3984 cx: &mut App,
3985 ) {
3986 let mut occlusion = div()
3987 .size_full()
3988 .occlude()
3989 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3990 .into_any_element();
3991 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3992 window.defer_draw(occlusion, origin, 2);
3993 }
3994
3995 if hovered_point.y > overall_height {
3996 // There is enough space above. Render popovers above the hovered point
3997 let mut current_y = hovered_point.y;
3998 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3999 let size = popover.size;
4000 let popover_origin = point(
4001 hovered_point.x + popover.horizontal_offset,
4002 current_y - size.height,
4003 );
4004
4005 window.defer_draw(popover.element, popover_origin, 2);
4006 if position != itertools::Position::Last {
4007 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4008 draw_occluder(size.width, origin, window, cx);
4009 }
4010
4011 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4012 }
4013 } else {
4014 // There is not enough space above. Render popovers below the hovered point
4015 let mut current_y = hovered_point.y + line_height;
4016 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4017 let size = popover.size;
4018 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4019
4020 window.defer_draw(popover.element, popover_origin, 2);
4021 if position != itertools::Position::Last {
4022 let origin = point(popover_origin.x, popover_origin.y + size.height);
4023 draw_occluder(size.width, origin, window, cx);
4024 }
4025
4026 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4027 }
4028 }
4029 }
4030
4031 fn layout_diff_hunk_controls(
4032 &self,
4033 row_range: Range<DisplayRow>,
4034 row_infos: &[RowInfo],
4035 text_hitbox: &Hitbox,
4036 position_map: &PositionMap,
4037 newest_cursor_position: Option<DisplayPoint>,
4038 line_height: Pixels,
4039 scroll_pixel_position: gpui::Point<Pixels>,
4040 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4041 editor: Entity<Editor>,
4042 window: &mut Window,
4043 cx: &mut App,
4044 ) -> Vec<AnyElement> {
4045 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4046 let point_for_position = position_map.point_for_position(window.mouse_position());
4047
4048 let mut controls = vec![];
4049
4050 let active_positions = [
4051 Some(point_for_position.previous_valid),
4052 newest_cursor_position,
4053 ];
4054
4055 for (hunk, _) in display_hunks {
4056 if let DisplayDiffHunk::Unfolded {
4057 display_row_range,
4058 multi_buffer_range,
4059 status,
4060 is_created_file,
4061 ..
4062 } = &hunk
4063 {
4064 if display_row_range.start < row_range.start
4065 || display_row_range.start >= row_range.end
4066 {
4067 continue;
4068 }
4069 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4070 if row_infos[row_ix].diff_status.is_none() {
4071 continue;
4072 }
4073 if row_infos[row_ix]
4074 .diff_status
4075 .is_some_and(|status| status.is_added())
4076 && !status.is_added()
4077 {
4078 continue;
4079 }
4080 if active_positions
4081 .iter()
4082 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4083 {
4084 let y = display_row_range.start.as_f32() * line_height
4085 + text_hitbox.bounds.top()
4086 - scroll_pixel_position.y;
4087
4088 let mut element = render_diff_hunk_controls(
4089 display_row_range.start.0,
4090 status,
4091 multi_buffer_range.clone(),
4092 *is_created_file,
4093 line_height,
4094 &editor,
4095 window,
4096 cx,
4097 );
4098 let size =
4099 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4100
4101 let x = text_hitbox.bounds.right()
4102 - self.style.scrollbar_width
4103 - px(10.)
4104 - size.width;
4105
4106 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4107 element.prepaint(window, cx)
4108 });
4109 controls.push(element);
4110 }
4111 }
4112 }
4113
4114 controls
4115 }
4116
4117 fn layout_signature_help(
4118 &self,
4119 hitbox: &Hitbox,
4120 text_hitbox: &Hitbox,
4121 content_origin: gpui::Point<Pixels>,
4122 scroll_pixel_position: gpui::Point<Pixels>,
4123 newest_selection_head: Option<DisplayPoint>,
4124 start_row: DisplayRow,
4125 line_layouts: &[LineWithInvisibles],
4126 line_height: Pixels,
4127 em_width: Pixels,
4128 window: &mut Window,
4129 cx: &mut App,
4130 ) {
4131 if !self.editor.focus_handle(cx).is_focused(window) {
4132 return;
4133 }
4134 let Some(newest_selection_head) = newest_selection_head else {
4135 return;
4136 };
4137
4138 let max_size = size(
4139 (120. * em_width) // Default size
4140 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4141 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4142 (16. * line_height) // Default size
4143 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4144 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4145 );
4146
4147 let maybe_element = self.editor.update(cx, |editor, cx| {
4148 if let Some(popover) = editor.signature_help_state.popover_mut() {
4149 let element = popover.render(max_size, cx);
4150 Some(element)
4151 } else {
4152 None
4153 }
4154 });
4155 let Some(mut element) = maybe_element else {
4156 return;
4157 };
4158
4159 let selection_row = newest_selection_head.row();
4160 let Some(cursor_row_layout) = (selection_row >= start_row)
4161 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
4162 .flatten()
4163 else {
4164 return;
4165 };
4166
4167 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4168 - scroll_pixel_position.x;
4169 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
4170 let target_point = content_origin + point(target_x, target_y);
4171
4172 let actual_size = element.layout_as_root(max_size.into(), window, cx);
4173 let overall_height = actual_size.height + HOVER_POPOVER_GAP;
4174
4175 let popover_origin = if target_point.y > overall_height {
4176 point(target_point.x, target_point.y - actual_size.height)
4177 } else {
4178 point(
4179 target_point.x,
4180 target_point.y + line_height + HOVER_POPOVER_GAP,
4181 )
4182 };
4183
4184 let horizontal_offset = (text_hitbox.top_right().x
4185 - POPOVER_RIGHT_OFFSET
4186 - (popover_origin.x + actual_size.width))
4187 .min(Pixels::ZERO);
4188 let final_origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
4189
4190 window.defer_draw(element, final_origin, 2);
4191 }
4192
4193 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4194 window.paint_layer(layout.hitbox.bounds, |window| {
4195 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4196 let gutter_bg = cx.theme().colors().editor_gutter_background;
4197 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4198 window.paint_quad(fill(
4199 layout.position_map.text_hitbox.bounds,
4200 self.style.background,
4201 ));
4202
4203 if let EditorMode::Full {
4204 show_active_line_background,
4205 ..
4206 } = layout.mode
4207 {
4208 let mut active_rows = layout.active_rows.iter().peekable();
4209 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4210 let mut end_row = start_row.0;
4211 while active_rows
4212 .peek()
4213 .map_or(false, |(active_row, has_selection)| {
4214 active_row.0 == end_row + 1
4215 && has_selection.selection == contains_non_empty_selection.selection
4216 })
4217 {
4218 active_rows.next().unwrap();
4219 end_row += 1;
4220 }
4221
4222 if show_active_line_background && !contains_non_empty_selection.selection {
4223 let highlight_h_range =
4224 match layout.position_map.snapshot.current_line_highlight {
4225 CurrentLineHighlight::Gutter => Some(Range {
4226 start: layout.hitbox.left(),
4227 end: layout.gutter_hitbox.right(),
4228 }),
4229 CurrentLineHighlight::Line => Some(Range {
4230 start: layout.position_map.text_hitbox.bounds.left(),
4231 end: layout.position_map.text_hitbox.bounds.right(),
4232 }),
4233 CurrentLineHighlight::All => Some(Range {
4234 start: layout.hitbox.left(),
4235 end: layout.hitbox.right(),
4236 }),
4237 CurrentLineHighlight::None => None,
4238 };
4239 if let Some(range) = highlight_h_range {
4240 let active_line_bg = cx.theme().colors().editor_active_line_background;
4241 let bounds = Bounds {
4242 origin: point(
4243 range.start,
4244 layout.hitbox.origin.y
4245 + (start_row.as_f32() - scroll_top)
4246 * layout.position_map.line_height,
4247 ),
4248 size: size(
4249 range.end - range.start,
4250 layout.position_map.line_height
4251 * (end_row - start_row.0 + 1) as f32,
4252 ),
4253 };
4254 window.paint_quad(fill(bounds, active_line_bg));
4255 }
4256 }
4257 }
4258
4259 let mut paint_highlight = |highlight_row_start: DisplayRow,
4260 highlight_row_end: DisplayRow,
4261 highlight: crate::LineHighlight,
4262 edges| {
4263 let origin = point(
4264 layout.hitbox.origin.x,
4265 layout.hitbox.origin.y
4266 + (highlight_row_start.as_f32() - scroll_top)
4267 * layout.position_map.line_height,
4268 );
4269 let size = size(
4270 layout.hitbox.size.width,
4271 layout.position_map.line_height
4272 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4273 );
4274 let mut quad = fill(Bounds { origin, size }, highlight.background);
4275 if let Some(border_color) = highlight.border {
4276 quad.border_color = border_color;
4277 quad.border_widths = edges
4278 }
4279 window.paint_quad(quad);
4280 };
4281
4282 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4283 None;
4284 for (&new_row, &new_background) in &layout.highlighted_rows {
4285 match &mut current_paint {
4286 &mut Some((current_background, ref mut current_range, mut edges)) => {
4287 let new_range_started = current_background != new_background
4288 || current_range.end.next_row() != new_row;
4289 if new_range_started {
4290 if current_range.end.next_row() == new_row {
4291 edges.bottom = px(0.);
4292 };
4293 paint_highlight(
4294 current_range.start,
4295 current_range.end,
4296 current_background,
4297 edges,
4298 );
4299 let edges = Edges {
4300 top: if current_range.end.next_row() != new_row {
4301 px(1.)
4302 } else {
4303 px(0.)
4304 },
4305 bottom: px(1.),
4306 ..Default::default()
4307 };
4308 current_paint = Some((new_background, new_row..new_row, edges));
4309 continue;
4310 } else {
4311 current_range.end = current_range.end.next_row();
4312 }
4313 }
4314 None => {
4315 let edges = Edges {
4316 top: px(1.),
4317 bottom: px(1.),
4318 ..Default::default()
4319 };
4320 current_paint = Some((new_background, new_row..new_row, edges))
4321 }
4322 };
4323 }
4324 if let Some((color, range, edges)) = current_paint {
4325 paint_highlight(range.start, range.end, color, edges);
4326 }
4327
4328 let scroll_left =
4329 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4330
4331 for (wrap_position, active) in layout.wrap_guides.iter() {
4332 let x = (layout.position_map.text_hitbox.origin.x
4333 + *wrap_position
4334 + layout.position_map.em_width / 2.)
4335 - scroll_left;
4336
4337 let show_scrollbars = layout
4338 .scrollbars_layout
4339 .as_ref()
4340 .map_or(false, |layout| layout.visible);
4341
4342 if x < layout.position_map.text_hitbox.origin.x
4343 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4344 {
4345 continue;
4346 }
4347
4348 let color = if *active {
4349 cx.theme().colors().editor_active_wrap_guide
4350 } else {
4351 cx.theme().colors().editor_wrap_guide
4352 };
4353 window.paint_quad(fill(
4354 Bounds {
4355 origin: point(x, layout.position_map.text_hitbox.origin.y),
4356 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4357 },
4358 color,
4359 ));
4360 }
4361 }
4362 })
4363 }
4364
4365 fn paint_indent_guides(
4366 &mut self,
4367 layout: &mut EditorLayout,
4368 window: &mut Window,
4369 cx: &mut App,
4370 ) {
4371 let Some(indent_guides) = &layout.indent_guides else {
4372 return;
4373 };
4374
4375 let faded_color = |color: Hsla, alpha: f32| {
4376 let mut faded = color;
4377 faded.a = alpha;
4378 faded
4379 };
4380
4381 for indent_guide in indent_guides {
4382 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4383 let settings = indent_guide.settings;
4384
4385 // TODO fixed for now, expose them through themes later
4386 const INDENT_AWARE_ALPHA: f32 = 0.2;
4387 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4388 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4389 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4390
4391 let line_color = match (settings.coloring, indent_guide.active) {
4392 (IndentGuideColoring::Disabled, _) => None,
4393 (IndentGuideColoring::Fixed, false) => {
4394 Some(cx.theme().colors().editor_indent_guide)
4395 }
4396 (IndentGuideColoring::Fixed, true) => {
4397 Some(cx.theme().colors().editor_indent_guide_active)
4398 }
4399 (IndentGuideColoring::IndentAware, false) => {
4400 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4401 }
4402 (IndentGuideColoring::IndentAware, true) => {
4403 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4404 }
4405 };
4406
4407 let background_color = match (settings.background_coloring, indent_guide.active) {
4408 (IndentGuideBackgroundColoring::Disabled, _) => None,
4409 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4410 indent_accent_colors,
4411 INDENT_AWARE_BACKGROUND_ALPHA,
4412 )),
4413 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4414 indent_accent_colors,
4415 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4416 )),
4417 };
4418
4419 let requested_line_width = if indent_guide.active {
4420 settings.active_line_width
4421 } else {
4422 settings.line_width
4423 }
4424 .clamp(1, 10);
4425 let mut line_indicator_width = 0.;
4426 if let Some(color) = line_color {
4427 window.paint_quad(fill(
4428 Bounds {
4429 origin: indent_guide.origin,
4430 size: size(px(requested_line_width as f32), indent_guide.length),
4431 },
4432 color,
4433 ));
4434 line_indicator_width = requested_line_width as f32;
4435 }
4436
4437 if let Some(color) = background_color {
4438 let width = indent_guide.single_indent_width - px(line_indicator_width);
4439 window.paint_quad(fill(
4440 Bounds {
4441 origin: point(
4442 indent_guide.origin.x + px(line_indicator_width),
4443 indent_guide.origin.y,
4444 ),
4445 size: size(width, indent_guide.length),
4446 },
4447 color,
4448 ));
4449 }
4450 }
4451 }
4452
4453 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4454 let is_singleton = self.editor.read(cx).is_singleton(cx);
4455
4456 let line_height = layout.position_map.line_height;
4457 window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox));
4458
4459 for LineNumberLayout {
4460 shaped_line,
4461 hitbox,
4462 } in layout.line_numbers.values()
4463 {
4464 let Some(hitbox) = hitbox else {
4465 continue;
4466 };
4467
4468 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4469 let color = cx.theme().colors().editor_hover_line_number;
4470
4471 let Some(line) = self
4472 .shape_line_number(shaped_line.text.clone(), color, window)
4473 .log_err()
4474 else {
4475 continue;
4476 };
4477
4478 line.paint(hitbox.origin, line_height, window, cx).log_err()
4479 } else {
4480 shaped_line
4481 .paint(hitbox.origin, line_height, window, cx)
4482 .log_err()
4483 }) else {
4484 continue;
4485 };
4486
4487 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4488 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4489 if is_singleton {
4490 window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox));
4491 } else {
4492 window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox));
4493 }
4494 }
4495 }
4496
4497 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4498 if layout.display_hunks.is_empty() {
4499 return;
4500 }
4501
4502 let line_height = layout.position_map.line_height;
4503 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4504 for (hunk, hitbox) in &layout.display_hunks {
4505 let hunk_to_paint = match hunk {
4506 DisplayDiffHunk::Folded { .. } => {
4507 let hunk_bounds = Self::diff_hunk_bounds(
4508 &layout.position_map.snapshot,
4509 line_height,
4510 layout.gutter_hitbox.bounds,
4511 &hunk,
4512 );
4513 Some((
4514 hunk_bounds,
4515 cx.theme().colors().version_control_modified,
4516 Corners::all(px(0.)),
4517 DiffHunkStatus::modified_none(),
4518 ))
4519 }
4520 DisplayDiffHunk::Unfolded {
4521 status,
4522 display_row_range,
4523 ..
4524 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4525 DiffHunkStatusKind::Added => (
4526 hunk_hitbox.bounds,
4527 cx.theme().colors().version_control_added,
4528 Corners::all(px(0.)),
4529 *status,
4530 ),
4531 DiffHunkStatusKind::Modified => (
4532 hunk_hitbox.bounds,
4533 cx.theme().colors().version_control_modified,
4534 Corners::all(px(0.)),
4535 *status,
4536 ),
4537 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4538 hunk_hitbox.bounds,
4539 cx.theme().colors().version_control_deleted,
4540 Corners::all(px(0.)),
4541 *status,
4542 ),
4543 DiffHunkStatusKind::Deleted => (
4544 Bounds::new(
4545 point(
4546 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4547 hunk_hitbox.origin.y,
4548 ),
4549 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4550 ),
4551 cx.theme().colors().version_control_deleted,
4552 Corners::all(1. * line_height),
4553 *status,
4554 ),
4555 }),
4556 };
4557
4558 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4559 // Flatten the background color with the editor color to prevent
4560 // elements below transparent hunks from showing through
4561 let flattened_background_color = cx
4562 .theme()
4563 .colors()
4564 .editor_background
4565 .blend(background_color);
4566
4567 if !Self::diff_hunk_hollow(status, cx) {
4568 window.paint_quad(quad(
4569 hunk_bounds,
4570 corner_radii,
4571 flattened_background_color,
4572 Edges::default(),
4573 transparent_black(),
4574 BorderStyle::default(),
4575 ));
4576 } else {
4577 let flattened_unstaged_background_color = cx
4578 .theme()
4579 .colors()
4580 .editor_background
4581 .blend(background_color.opacity(0.3));
4582
4583 window.paint_quad(quad(
4584 hunk_bounds,
4585 corner_radii,
4586 flattened_unstaged_background_color,
4587 Edges::all(Pixels(1.0)),
4588 flattened_background_color,
4589 BorderStyle::Solid,
4590 ));
4591 }
4592 }
4593 }
4594 });
4595 }
4596
4597 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4598 (0.275 * line_height).floor()
4599 }
4600
4601 fn diff_hunk_bounds(
4602 snapshot: &EditorSnapshot,
4603 line_height: Pixels,
4604 gutter_bounds: Bounds<Pixels>,
4605 hunk: &DisplayDiffHunk,
4606 ) -> Bounds<Pixels> {
4607 let scroll_position = snapshot.scroll_position();
4608 let scroll_top = scroll_position.y * line_height;
4609 let gutter_strip_width = Self::gutter_strip_width(line_height);
4610
4611 match hunk {
4612 DisplayDiffHunk::Folded { display_row, .. } => {
4613 let start_y = display_row.as_f32() * line_height - scroll_top;
4614 let end_y = start_y + line_height;
4615 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4616 let highlight_size = size(gutter_strip_width, end_y - start_y);
4617 Bounds::new(highlight_origin, highlight_size)
4618 }
4619 DisplayDiffHunk::Unfolded {
4620 display_row_range,
4621 status,
4622 ..
4623 } => {
4624 if status.is_deleted() && display_row_range.is_empty() {
4625 let row = display_row_range.start;
4626
4627 let offset = line_height / 2.;
4628 let start_y = row.as_f32() * line_height - offset - scroll_top;
4629 let end_y = start_y + line_height;
4630
4631 let width = (0.35 * line_height).floor();
4632 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4633 let highlight_size = size(width, end_y - start_y);
4634 Bounds::new(highlight_origin, highlight_size)
4635 } else {
4636 let start_row = display_row_range.start;
4637 let end_row = display_row_range.end;
4638 // If we're in a multibuffer, row range span might include an
4639 // excerpt header, so if we were to draw the marker straight away,
4640 // the hunk might include the rows of that header.
4641 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4642 // Instead, we simply check whether the range we're dealing with includes
4643 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4644 let end_row_in_current_excerpt = snapshot
4645 .blocks_in_range(start_row..end_row)
4646 .find_map(|(start_row, block)| {
4647 if matches!(block, Block::ExcerptBoundary { .. }) {
4648 Some(start_row)
4649 } else {
4650 None
4651 }
4652 })
4653 .unwrap_or(end_row);
4654
4655 let start_y = start_row.as_f32() * line_height - scroll_top;
4656 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4657
4658 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4659 let highlight_size = size(gutter_strip_width, end_y - start_y);
4660 Bounds::new(highlight_origin, highlight_size)
4661 }
4662 }
4663 }
4664 }
4665
4666 fn paint_gutter_indicators(
4667 &self,
4668 layout: &mut EditorLayout,
4669 window: &mut Window,
4670 cx: &mut App,
4671 ) {
4672 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4673 window.with_element_namespace("crease_toggles", |window| {
4674 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4675 crease_toggle.paint(window, cx);
4676 }
4677 });
4678
4679 window.with_element_namespace("expand_toggles", |window| {
4680 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4681 expand_toggle.paint(window, cx);
4682 }
4683 });
4684
4685 for breakpoint in layout.breakpoints.iter_mut() {
4686 breakpoint.paint(window, cx);
4687 }
4688
4689 for test_indicator in layout.test_indicators.iter_mut() {
4690 test_indicator.paint(window, cx);
4691 }
4692
4693 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4694 indicator.paint(window, cx);
4695 }
4696 });
4697 }
4698
4699 fn paint_gutter_highlights(
4700 &self,
4701 layout: &mut EditorLayout,
4702 window: &mut Window,
4703 cx: &mut App,
4704 ) {
4705 for (_, hunk_hitbox) in &layout.display_hunks {
4706 if let Some(hunk_hitbox) = hunk_hitbox {
4707 if !self
4708 .editor
4709 .read(cx)
4710 .buffer()
4711 .read(cx)
4712 .all_diff_hunks_expanded()
4713 {
4714 window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox));
4715 }
4716 }
4717 }
4718
4719 let show_git_gutter = layout
4720 .position_map
4721 .snapshot
4722 .show_git_diff_gutter
4723 .unwrap_or_else(|| {
4724 matches!(
4725 ProjectSettings::get_global(cx).git.git_gutter,
4726 Some(GitGutterSetting::TrackedFiles)
4727 )
4728 });
4729 if show_git_gutter {
4730 Self::paint_gutter_diff_hunks(layout, window, cx)
4731 }
4732
4733 let highlight_width = 0.275 * layout.position_map.line_height;
4734 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4735 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4736 for (range, color) in &layout.highlighted_gutter_ranges {
4737 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4738 layout.visible_display_row_range.start - DisplayRow(1)
4739 } else {
4740 range.start.row()
4741 };
4742 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4743 layout.visible_display_row_range.end + DisplayRow(1)
4744 } else {
4745 range.end.row()
4746 };
4747
4748 let start_y = layout.gutter_hitbox.top()
4749 + start_row.0 as f32 * layout.position_map.line_height
4750 - layout.position_map.scroll_pixel_position.y;
4751 let end_y = layout.gutter_hitbox.top()
4752 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4753 - layout.position_map.scroll_pixel_position.y;
4754 let bounds = Bounds::from_corners(
4755 point(layout.gutter_hitbox.left(), start_y),
4756 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4757 );
4758 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4759 }
4760 });
4761 }
4762
4763 fn paint_blamed_display_rows(
4764 &self,
4765 layout: &mut EditorLayout,
4766 window: &mut Window,
4767 cx: &mut App,
4768 ) {
4769 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4770 return;
4771 };
4772
4773 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4774 for mut blame_element in blamed_display_rows.into_iter() {
4775 blame_element.paint(window, cx);
4776 }
4777 })
4778 }
4779
4780 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4781 window.with_content_mask(
4782 Some(ContentMask {
4783 bounds: layout.position_map.text_hitbox.bounds,
4784 }),
4785 |window| {
4786 let editor = self.editor.read(cx);
4787 if editor.mouse_cursor_hidden {
4788 window.set_cursor_style(CursorStyle::None, None);
4789 } else if editor
4790 .hovered_link_state
4791 .as_ref()
4792 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4793 {
4794 window.set_cursor_style(
4795 CursorStyle::PointingHand,
4796 Some(&layout.position_map.text_hitbox),
4797 );
4798 } else {
4799 window.set_cursor_style(
4800 CursorStyle::IBeam,
4801 Some(&layout.position_map.text_hitbox),
4802 );
4803 };
4804
4805 self.paint_lines_background(layout, window, cx);
4806 let invisible_display_ranges = self.paint_highlights(layout, window);
4807 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4808 self.paint_redactions(layout, window);
4809 self.paint_cursors(layout, window, cx);
4810 self.paint_inline_diagnostics(layout, window, cx);
4811 self.paint_inline_blame(layout, window, cx);
4812 self.paint_diff_hunk_controls(layout, window, cx);
4813 window.with_element_namespace("crease_trailers", |window| {
4814 for trailer in layout.crease_trailers.iter_mut().flatten() {
4815 trailer.element.paint(window, cx);
4816 }
4817 });
4818 },
4819 )
4820 }
4821
4822 fn paint_highlights(
4823 &mut self,
4824 layout: &mut EditorLayout,
4825 window: &mut Window,
4826 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4827 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4828 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4829 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4830 for (range, color) in &layout.highlighted_ranges {
4831 self.paint_highlighted_range(
4832 range.clone(),
4833 *color,
4834 Pixels::ZERO,
4835 line_end_overshoot,
4836 layout,
4837 window,
4838 );
4839 }
4840
4841 let corner_radius = 0.15 * layout.position_map.line_height;
4842
4843 for (player_color, selections) in &layout.selections {
4844 for selection in selections.iter() {
4845 self.paint_highlighted_range(
4846 selection.range.clone(),
4847 player_color.selection,
4848 corner_radius,
4849 corner_radius * 2.,
4850 layout,
4851 window,
4852 );
4853
4854 if selection.is_local && !selection.range.is_empty() {
4855 invisible_display_ranges.push(selection.range.clone());
4856 }
4857 }
4858 }
4859 invisible_display_ranges
4860 })
4861 }
4862
4863 fn paint_lines(
4864 &mut self,
4865 invisible_display_ranges: &[Range<DisplayPoint>],
4866 layout: &mut EditorLayout,
4867 window: &mut Window,
4868 cx: &mut App,
4869 ) {
4870 let whitespace_setting = self
4871 .editor
4872 .read(cx)
4873 .buffer
4874 .read(cx)
4875 .language_settings(cx)
4876 .show_whitespaces;
4877
4878 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4879 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4880 line_with_invisibles.draw(
4881 layout,
4882 row,
4883 layout.content_origin,
4884 whitespace_setting,
4885 invisible_display_ranges,
4886 window,
4887 cx,
4888 )
4889 }
4890
4891 for line_element in &mut layout.line_elements {
4892 line_element.paint(window, cx);
4893 }
4894 }
4895
4896 fn paint_lines_background(
4897 &mut self,
4898 layout: &mut EditorLayout,
4899 window: &mut Window,
4900 cx: &mut App,
4901 ) {
4902 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4903 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4904 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4905 }
4906 }
4907
4908 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4909 if layout.redacted_ranges.is_empty() {
4910 return;
4911 }
4912
4913 let line_end_overshoot = layout.line_end_overshoot();
4914
4915 // A softer than perfect black
4916 let redaction_color = gpui::rgb(0x0e1111);
4917
4918 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4919 for range in layout.redacted_ranges.iter() {
4920 self.paint_highlighted_range(
4921 range.clone(),
4922 redaction_color.into(),
4923 Pixels::ZERO,
4924 line_end_overshoot,
4925 layout,
4926 window,
4927 );
4928 }
4929 });
4930 }
4931
4932 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4933 for cursor in &mut layout.visible_cursors {
4934 cursor.paint(layout.content_origin, window, cx);
4935 }
4936 }
4937
4938 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4939 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
4940 return;
4941 };
4942
4943 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
4944 let hitbox = &scrollbar_layout.hitbox;
4945 let thumb_bounds = scrollbar_layout.thumb_bounds();
4946
4947 if scrollbars_layout.visible {
4948 let scrollbar_edges = match axis {
4949 ScrollbarAxis::Horizontal => Edges {
4950 top: Pixels::ZERO,
4951 right: Pixels::ZERO,
4952 bottom: Pixels::ZERO,
4953 left: Pixels::ZERO,
4954 },
4955 ScrollbarAxis::Vertical => Edges {
4956 top: Pixels::ZERO,
4957 right: Pixels::ZERO,
4958 bottom: Pixels::ZERO,
4959 left: ScrollbarLayout::BORDER_WIDTH,
4960 },
4961 };
4962
4963 window.paint_layer(hitbox.bounds, |window| {
4964 window.paint_quad(quad(
4965 hitbox.bounds,
4966 Corners::default(),
4967 cx.theme().colors().scrollbar_track_background,
4968 scrollbar_edges,
4969 cx.theme().colors().scrollbar_track_border,
4970 BorderStyle::Solid,
4971 ));
4972
4973 if axis == ScrollbarAxis::Vertical {
4974 let fast_markers =
4975 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4976 // Refresh slow scrollbar markers in the background. Below, we
4977 // paint whatever markers have already been computed.
4978 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4979
4980 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4981 for marker in markers.iter().chain(&fast_markers) {
4982 let mut marker = marker.clone();
4983 marker.bounds.origin += hitbox.origin;
4984 window.paint_quad(marker);
4985 }
4986 }
4987
4988 window.paint_quad(quad(
4989 thumb_bounds,
4990 Corners::default(),
4991 cx.theme().colors().scrollbar_thumb_background,
4992 scrollbar_edges,
4993 cx.theme().colors().scrollbar_thumb_border,
4994 BorderStyle::Solid,
4995 ));
4996 })
4997 }
4998 window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox));
4999 }
5000
5001 window.on_mouse_event({
5002 let editor = self.editor.clone();
5003 let scrollbars_layout = scrollbars_layout.clone();
5004
5005 let mut mouse_position = window.mouse_position();
5006 move |event: &MouseMoveEvent, phase, window, cx| {
5007 if phase == DispatchPhase::Capture {
5008 return;
5009 }
5010
5011 editor.update(cx, |editor, cx| {
5012 if let Some((scrollbar_layout, axis)) = event
5013 .pressed_button
5014 .filter(|button| *button == MouseButton::Left)
5015 .and(editor.scroll_manager.dragging_scrollbar_axis())
5016 .and_then(|axis| {
5017 scrollbars_layout
5018 .iter_scrollbars()
5019 .find(|(_, a)| *a == axis)
5020 })
5021 {
5022 let ScrollbarLayout {
5023 hitbox,
5024 text_unit_size,
5025 ..
5026 } = scrollbar_layout;
5027
5028 let old_position = mouse_position.along(axis);
5029 let new_position = event.position.along(axis);
5030 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
5031 .contains(&old_position)
5032 {
5033 let position = editor.scroll_position(cx).apply_along(axis, |p| {
5034 (p + (new_position - old_position) / *text_unit_size).max(0.)
5035 });
5036 editor.set_scroll_position(position, window, cx);
5037 }
5038 cx.stop_propagation();
5039 } else {
5040 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
5041 }
5042
5043 if scrollbars_layout.get_hovered_axis(window).is_some() {
5044 editor.scroll_manager.show_scrollbars(window, cx);
5045 }
5046
5047 mouse_position = event.position;
5048 })
5049 }
5050 });
5051
5052 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
5053 window.on_mouse_event({
5054 let editor = self.editor.clone();
5055 move |_: &MouseUpEvent, phase, _, cx| {
5056 if phase == DispatchPhase::Capture {
5057 return;
5058 }
5059
5060 editor.update(cx, |editor, cx| {
5061 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
5062 cx.stop_propagation();
5063 });
5064 }
5065 });
5066 } else {
5067 window.on_mouse_event({
5068 let editor = self.editor.clone();
5069 let scrollbars_layout = scrollbars_layout.clone();
5070
5071 move |event: &MouseDownEvent, phase, window, cx| {
5072 if phase == DispatchPhase::Capture {
5073 return;
5074 }
5075 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
5076 else {
5077 return;
5078 };
5079
5080 let ScrollbarLayout {
5081 hitbox,
5082 visible_range,
5083 text_unit_size,
5084 ..
5085 } = scrollbar_layout;
5086
5087 let thumb_bounds = scrollbar_layout.thumb_bounds();
5088
5089 editor.update(cx, |editor, cx| {
5090 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
5091
5092 let event_position = event.position.along(axis);
5093
5094 if event_position < thumb_bounds.origin.along(axis)
5095 || thumb_bounds.bottom_right().along(axis) < event_position
5096 {
5097 let center_position = ((event_position - hitbox.origin.along(axis))
5098 / *text_unit_size)
5099 .round() as u32;
5100 let start_position = center_position.saturating_sub(
5101 (visible_range.end - visible_range.start) as u32 / 2,
5102 );
5103
5104 let position = editor
5105 .scroll_position(cx)
5106 .apply_along(axis, |_| start_position as f32);
5107
5108 editor.set_scroll_position(position, window, cx);
5109 } else {
5110 editor.scroll_manager.show_scrollbars(window, cx);
5111 }
5112
5113 cx.stop_propagation();
5114 });
5115 }
5116 });
5117 }
5118 }
5119
5120 fn collect_fast_scrollbar_markers(
5121 &self,
5122 layout: &EditorLayout,
5123 scrollbar_layout: &ScrollbarLayout,
5124 cx: &mut App,
5125 ) -> Vec<PaintQuad> {
5126 const LIMIT: usize = 100;
5127 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5128 return vec![];
5129 }
5130 let cursor_ranges = layout
5131 .cursors
5132 .iter()
5133 .map(|(point, color)| ColoredRange {
5134 start: point.row(),
5135 end: point.row(),
5136 color: *color,
5137 })
5138 .collect_vec();
5139 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5140 }
5141
5142 fn refresh_slow_scrollbar_markers(
5143 &self,
5144 layout: &EditorLayout,
5145 scrollbar_layout: &ScrollbarLayout,
5146 window: &mut Window,
5147 cx: &mut App,
5148 ) {
5149 self.editor.update(cx, |editor, cx| {
5150 if !editor.is_singleton(cx)
5151 || !editor
5152 .scrollbar_marker_state
5153 .should_refresh(scrollbar_layout.hitbox.size)
5154 {
5155 return;
5156 }
5157
5158 let scrollbar_layout = scrollbar_layout.clone();
5159 let background_highlights = editor.background_highlights.clone();
5160 let snapshot = layout.position_map.snapshot.clone();
5161 let theme = cx.theme().clone();
5162 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5163
5164 editor.scrollbar_marker_state.dirty = false;
5165 editor.scrollbar_marker_state.pending_refresh =
5166 Some(cx.spawn_in(window, async move |editor, cx| {
5167 let scrollbar_size = scrollbar_layout.hitbox.size;
5168 let scrollbar_markers = cx
5169 .background_spawn(async move {
5170 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5171 let mut marker_quads = Vec::new();
5172 if scrollbar_settings.git_diff {
5173 let marker_row_ranges =
5174 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5175 let start_display_row =
5176 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5177 .to_display_point(&snapshot.display_snapshot)
5178 .row();
5179 let mut end_display_row =
5180 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5181 .to_display_point(&snapshot.display_snapshot)
5182 .row();
5183 if end_display_row != start_display_row {
5184 end_display_row.0 -= 1;
5185 }
5186 let color = match &hunk.status().kind {
5187 DiffHunkStatusKind::Added => {
5188 theme.colors().version_control_added
5189 }
5190 DiffHunkStatusKind::Modified => {
5191 theme.colors().version_control_modified
5192 }
5193 DiffHunkStatusKind::Deleted => {
5194 theme.colors().version_control_deleted
5195 }
5196 };
5197 ColoredRange {
5198 start: start_display_row,
5199 end: end_display_row,
5200 color,
5201 }
5202 });
5203
5204 marker_quads.extend(
5205 scrollbar_layout
5206 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5207 );
5208 }
5209
5210 for (background_highlight_id, (_, background_ranges)) in
5211 background_highlights.iter()
5212 {
5213 let is_search_highlights = *background_highlight_id
5214 == TypeId::of::<BufferSearchHighlights>();
5215 let is_text_highlights = *background_highlight_id
5216 == TypeId::of::<SelectedTextHighlight>();
5217 let is_symbol_occurrences = *background_highlight_id
5218 == TypeId::of::<DocumentHighlightRead>()
5219 || *background_highlight_id
5220 == TypeId::of::<DocumentHighlightWrite>();
5221 if (is_search_highlights && scrollbar_settings.search_results)
5222 || (is_text_highlights && scrollbar_settings.selected_text)
5223 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5224 {
5225 let mut color = theme.status().info;
5226 if is_symbol_occurrences {
5227 color.fade_out(0.5);
5228 }
5229 let marker_row_ranges = background_ranges.iter().map(|range| {
5230 let display_start = range
5231 .start
5232 .to_display_point(&snapshot.display_snapshot);
5233 let display_end =
5234 range.end.to_display_point(&snapshot.display_snapshot);
5235 ColoredRange {
5236 start: display_start.row(),
5237 end: display_end.row(),
5238 color,
5239 }
5240 });
5241 marker_quads.extend(
5242 scrollbar_layout
5243 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5244 );
5245 }
5246 }
5247
5248 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5249 let diagnostics = snapshot
5250 .buffer_snapshot
5251 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5252 // Don't show diagnostics the user doesn't care about
5253 .filter(|diagnostic| {
5254 match (
5255 scrollbar_settings.diagnostics,
5256 diagnostic.diagnostic.severity,
5257 ) {
5258 (ScrollbarDiagnostics::All, _) => true,
5259 (
5260 ScrollbarDiagnostics::Error,
5261 DiagnosticSeverity::ERROR,
5262 ) => true,
5263 (
5264 ScrollbarDiagnostics::Warning,
5265 DiagnosticSeverity::ERROR
5266 | DiagnosticSeverity::WARNING,
5267 ) => true,
5268 (
5269 ScrollbarDiagnostics::Information,
5270 DiagnosticSeverity::ERROR
5271 | DiagnosticSeverity::WARNING
5272 | DiagnosticSeverity::INFORMATION,
5273 ) => true,
5274 (_, _) => false,
5275 }
5276 })
5277 // We want to sort by severity, in order to paint the most severe diagnostics last.
5278 .sorted_by_key(|diagnostic| {
5279 std::cmp::Reverse(diagnostic.diagnostic.severity)
5280 });
5281
5282 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5283 let start_display = diagnostic
5284 .range
5285 .start
5286 .to_display_point(&snapshot.display_snapshot);
5287 let end_display = diagnostic
5288 .range
5289 .end
5290 .to_display_point(&snapshot.display_snapshot);
5291 let color = match diagnostic.diagnostic.severity {
5292 DiagnosticSeverity::ERROR => theme.status().error,
5293 DiagnosticSeverity::WARNING => theme.status().warning,
5294 DiagnosticSeverity::INFORMATION => theme.status().info,
5295 _ => theme.status().hint,
5296 };
5297 ColoredRange {
5298 start: start_display.row(),
5299 end: end_display.row(),
5300 color,
5301 }
5302 });
5303 marker_quads.extend(
5304 scrollbar_layout
5305 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5306 );
5307 }
5308
5309 Arc::from(marker_quads)
5310 })
5311 .await;
5312
5313 editor.update(cx, |editor, cx| {
5314 editor.scrollbar_marker_state.markers = scrollbar_markers;
5315 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5316 editor.scrollbar_marker_state.pending_refresh = None;
5317 cx.notify();
5318 })?;
5319
5320 Ok(())
5321 }));
5322 });
5323 }
5324
5325 fn paint_highlighted_range(
5326 &self,
5327 range: Range<DisplayPoint>,
5328 color: Hsla,
5329 corner_radius: Pixels,
5330 line_end_overshoot: Pixels,
5331 layout: &EditorLayout,
5332 window: &mut Window,
5333 ) {
5334 let start_row = layout.visible_display_row_range.start;
5335 let end_row = layout.visible_display_row_range.end;
5336 if range.start != range.end {
5337 let row_range = if range.end.column() == 0 {
5338 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5339 } else {
5340 cmp::max(range.start.row(), start_row)
5341 ..cmp::min(range.end.row().next_row(), end_row)
5342 };
5343
5344 let highlighted_range = HighlightedRange {
5345 color,
5346 line_height: layout.position_map.line_height,
5347 corner_radius,
5348 start_y: layout.content_origin.y
5349 + row_range.start.as_f32() * layout.position_map.line_height
5350 - layout.position_map.scroll_pixel_position.y,
5351 lines: row_range
5352 .iter_rows()
5353 .map(|row| {
5354 let line_layout =
5355 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5356 HighlightedRangeLine {
5357 start_x: if row == range.start.row() {
5358 layout.content_origin.x
5359 + line_layout.x_for_index(range.start.column() as usize)
5360 - layout.position_map.scroll_pixel_position.x
5361 } else {
5362 layout.content_origin.x
5363 - layout.position_map.scroll_pixel_position.x
5364 },
5365 end_x: if row == range.end.row() {
5366 layout.content_origin.x
5367 + line_layout.x_for_index(range.end.column() as usize)
5368 - layout.position_map.scroll_pixel_position.x
5369 } else {
5370 layout.content_origin.x + line_layout.width + line_end_overshoot
5371 - layout.position_map.scroll_pixel_position.x
5372 },
5373 }
5374 })
5375 .collect(),
5376 };
5377
5378 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5379 }
5380 }
5381
5382 fn paint_inline_diagnostics(
5383 &mut self,
5384 layout: &mut EditorLayout,
5385 window: &mut Window,
5386 cx: &mut App,
5387 ) {
5388 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5389 inline_diagnostic.1.paint(window, cx);
5390 }
5391 }
5392
5393 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5394 if let Some(mut inline_blame) = layout.inline_blame.take() {
5395 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5396 inline_blame.paint(window, cx);
5397 })
5398 }
5399 }
5400
5401 fn paint_diff_hunk_controls(
5402 &mut self,
5403 layout: &mut EditorLayout,
5404 window: &mut Window,
5405 cx: &mut App,
5406 ) {
5407 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5408 diff_hunk_control.paint(window, cx);
5409 }
5410 }
5411
5412 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5413 for mut block in layout.blocks.drain(..) {
5414 if block.overlaps_gutter {
5415 block.element.paint(window, cx);
5416 } else {
5417 let mut bounds = layout.hitbox.bounds;
5418 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
5419 window.with_content_mask(Some(ContentMask { bounds }), |window| {
5420 block.element.paint(window, cx);
5421 })
5422 }
5423 }
5424 }
5425
5426 fn paint_inline_completion_popover(
5427 &mut self,
5428 layout: &mut EditorLayout,
5429 window: &mut Window,
5430 cx: &mut App,
5431 ) {
5432 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5433 inline_completion_popover.paint(window, cx);
5434 }
5435 }
5436
5437 fn paint_mouse_context_menu(
5438 &mut self,
5439 layout: &mut EditorLayout,
5440 window: &mut Window,
5441 cx: &mut App,
5442 ) {
5443 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5444 mouse_context_menu.paint(window, cx);
5445 }
5446 }
5447
5448 fn paint_scroll_wheel_listener(
5449 &mut self,
5450 layout: &EditorLayout,
5451 window: &mut Window,
5452 cx: &mut App,
5453 ) {
5454 window.on_mouse_event({
5455 let position_map = layout.position_map.clone();
5456 let editor = self.editor.clone();
5457 let hitbox = layout.hitbox.clone();
5458 let mut delta = ScrollDelta::default();
5459
5460 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5461 // accidentally turn off their scrolling.
5462 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5463
5464 move |event: &ScrollWheelEvent, phase, window, cx| {
5465 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5466 delta = delta.coalesce(event.delta);
5467 editor.update(cx, |editor, cx| {
5468 let position_map: &PositionMap = &position_map;
5469
5470 let line_height = position_map.line_height;
5471 let max_glyph_width = position_map.em_width;
5472 let (delta, axis) = match delta {
5473 gpui::ScrollDelta::Pixels(mut pixels) => {
5474 //Trackpad
5475 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5476 (pixels, axis)
5477 }
5478
5479 gpui::ScrollDelta::Lines(lines) => {
5480 //Not trackpad
5481 let pixels =
5482 point(lines.x * max_glyph_width, lines.y * line_height);
5483 (pixels, None)
5484 }
5485 };
5486
5487 let current_scroll_position = position_map.snapshot.scroll_position();
5488 let x = (current_scroll_position.x * max_glyph_width
5489 - (delta.x * scroll_sensitivity))
5490 / max_glyph_width;
5491 let y = (current_scroll_position.y * line_height
5492 - (delta.y * scroll_sensitivity))
5493 / line_height;
5494 let mut scroll_position =
5495 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5496 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5497 if forbid_vertical_scroll {
5498 scroll_position.y = current_scroll_position.y;
5499 }
5500
5501 if scroll_position != current_scroll_position {
5502 editor.scroll(scroll_position, axis, window, cx);
5503 cx.stop_propagation();
5504 } else if y < 0. {
5505 // Due to clamping, we may fail to detect cases of overscroll to the top;
5506 // We want the scroll manager to get an update in such cases and detect the change of direction
5507 // on the next frame.
5508 cx.notify();
5509 }
5510 });
5511 }
5512 }
5513 });
5514 }
5515
5516 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5517 self.paint_scroll_wheel_listener(layout, window, cx);
5518
5519 window.on_mouse_event({
5520 let position_map = layout.position_map.clone();
5521 let editor = self.editor.clone();
5522 let diff_hunk_range =
5523 layout
5524 .display_hunks
5525 .iter()
5526 .find_map(|(hunk, hunk_hitbox)| match hunk {
5527 DisplayDiffHunk::Folded { .. } => None,
5528 DisplayDiffHunk::Unfolded {
5529 multi_buffer_range, ..
5530 } => {
5531 if hunk_hitbox
5532 .as_ref()
5533 .map(|hitbox| hitbox.is_hovered(window))
5534 .unwrap_or(false)
5535 {
5536 Some(multi_buffer_range.clone())
5537 } else {
5538 None
5539 }
5540 }
5541 });
5542 let line_numbers = layout.line_numbers.clone();
5543
5544 move |event: &MouseDownEvent, phase, window, cx| {
5545 if phase == DispatchPhase::Bubble {
5546 match event.button {
5547 MouseButton::Left => editor.update(cx, |editor, cx| {
5548 let pending_mouse_down = editor
5549 .pending_mouse_down
5550 .get_or_insert_with(Default::default)
5551 .clone();
5552
5553 *pending_mouse_down.borrow_mut() = Some(event.clone());
5554
5555 Self::mouse_left_down(
5556 editor,
5557 event,
5558 diff_hunk_range.clone(),
5559 &position_map,
5560 line_numbers.as_ref(),
5561 window,
5562 cx,
5563 );
5564 }),
5565 MouseButton::Right => editor.update(cx, |editor, cx| {
5566 Self::mouse_right_down(editor, event, &position_map, window, cx);
5567 }),
5568 MouseButton::Middle => editor.update(cx, |editor, cx| {
5569 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5570 }),
5571 _ => {}
5572 };
5573 }
5574 }
5575 });
5576
5577 window.on_mouse_event({
5578 let editor = self.editor.clone();
5579 let position_map = layout.position_map.clone();
5580
5581 move |event: &MouseUpEvent, phase, window, cx| {
5582 if phase == DispatchPhase::Bubble {
5583 editor.update(cx, |editor, cx| {
5584 Self::mouse_up(editor, event, &position_map, window, cx)
5585 });
5586 }
5587 }
5588 });
5589
5590 window.on_mouse_event({
5591 let editor = self.editor.clone();
5592 let position_map = layout.position_map.clone();
5593 let mut captured_mouse_down = None;
5594
5595 move |event: &MouseUpEvent, phase, window, cx| match phase {
5596 // Clear the pending mouse down during the capture phase,
5597 // so that it happens even if another event handler stops
5598 // propagation.
5599 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5600 let pending_mouse_down = editor
5601 .pending_mouse_down
5602 .get_or_insert_with(Default::default)
5603 .clone();
5604
5605 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5606 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5607 captured_mouse_down = pending_mouse_down.take();
5608 window.refresh();
5609 }
5610 }),
5611 // Fire click handlers during the bubble phase.
5612 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5613 if let Some(mouse_down) = captured_mouse_down.take() {
5614 let event = ClickEvent {
5615 down: mouse_down,
5616 up: event.clone(),
5617 };
5618 Self::click(editor, &event, &position_map, window, cx);
5619 }
5620 }),
5621 }
5622 });
5623
5624 window.on_mouse_event({
5625 let position_map = layout.position_map.clone();
5626 let editor = self.editor.clone();
5627
5628 move |event: &MouseMoveEvent, phase, window, cx| {
5629 if phase == DispatchPhase::Bubble {
5630 editor.update(cx, |editor, cx| {
5631 if editor.hover_state.focused(window, cx) {
5632 return;
5633 }
5634 if event.pressed_button == Some(MouseButton::Left)
5635 || event.pressed_button == Some(MouseButton::Middle)
5636 {
5637 Self::mouse_dragged(editor, event, &position_map, window, cx)
5638 }
5639
5640 Self::mouse_moved(editor, event, &position_map, window, cx)
5641 });
5642 }
5643 }
5644 });
5645 }
5646
5647 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5648 bounds.top_right().x - self.style.scrollbar_width
5649 }
5650
5651 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5652 let style = &self.style;
5653 let font_size = style.text.font_size.to_pixels(window.rem_size());
5654 let layout = window
5655 .text_system()
5656 .shape_line(
5657 SharedString::from(" ".repeat(column)),
5658 font_size,
5659 &[TextRun {
5660 len: column,
5661 font: style.text.font(),
5662 color: Hsla::default(),
5663 background_color: None,
5664 underline: None,
5665 strikethrough: None,
5666 }],
5667 )
5668 .unwrap();
5669
5670 layout.width
5671 }
5672
5673 fn max_line_number_width(
5674 &self,
5675 snapshot: &EditorSnapshot,
5676 window: &mut Window,
5677 cx: &mut App,
5678 ) -> Pixels {
5679 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5680 self.column_pixels(digit_count as usize, window, cx)
5681 }
5682
5683 fn shape_line_number(
5684 &self,
5685 text: SharedString,
5686 color: Hsla,
5687 window: &mut Window,
5688 ) -> anyhow::Result<ShapedLine> {
5689 let run = TextRun {
5690 len: text.len(),
5691 font: self.style.text.font(),
5692 color,
5693 background_color: None,
5694 underline: None,
5695 strikethrough: None,
5696 };
5697 window.text_system().shape_line(
5698 text,
5699 self.style.text.font_size.to_pixels(window.rem_size()),
5700 &[run],
5701 )
5702 }
5703
5704 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5705 let unstaged = status.has_secondary_hunk();
5706 let unstaged_hollow = ProjectSettings::get_global(cx)
5707 .git
5708 .hunk_style
5709 .map_or(false, |style| {
5710 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5711 });
5712
5713 unstaged == unstaged_hollow
5714 }
5715}
5716
5717fn header_jump_data(
5718 snapshot: &EditorSnapshot,
5719 block_row_start: DisplayRow,
5720 height: u32,
5721 for_excerpt: &ExcerptInfo,
5722) -> JumpData {
5723 let range = &for_excerpt.range;
5724 let buffer = &for_excerpt.buffer;
5725 let jump_anchor = range.primary.start;
5726
5727 let excerpt_start = range.context.start;
5728 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5729 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5730 0
5731 } else {
5732 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5733 jump_position.row.saturating_sub(excerpt_start_point.row)
5734 };
5735
5736 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5737 .saturating_sub(
5738 snapshot
5739 .scroll_anchor
5740 .scroll_position(&snapshot.display_snapshot)
5741 .y as u32,
5742 );
5743
5744 JumpData::MultiBufferPoint {
5745 excerpt_id: for_excerpt.id,
5746 anchor: jump_anchor,
5747 position: jump_position,
5748 line_offset_from_top,
5749 }
5750}
5751
5752pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5753
5754impl AcceptEditPredictionBinding {
5755 pub fn keystroke(&self) -> Option<&Keystroke> {
5756 if let Some(binding) = self.0.as_ref() {
5757 match &binding.keystrokes() {
5758 [keystroke] => Some(keystroke),
5759 _ => None,
5760 }
5761 } else {
5762 None
5763 }
5764 }
5765}
5766
5767fn prepaint_gutter_button(
5768 button: IconButton,
5769 row: DisplayRow,
5770 line_height: Pixels,
5771 gutter_dimensions: &GutterDimensions,
5772 scroll_pixel_position: gpui::Point<Pixels>,
5773 gutter_hitbox: &Hitbox,
5774 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5775 window: &mut Window,
5776 cx: &mut App,
5777) -> AnyElement {
5778 let mut button = button.into_any_element();
5779
5780 let available_space = size(
5781 AvailableSpace::MinContent,
5782 AvailableSpace::Definite(line_height),
5783 );
5784 let indicator_size = button.layout_as_root(available_space, window, cx);
5785
5786 let blame_width = gutter_dimensions.git_blame_entries_width;
5787 let gutter_width = display_hunks
5788 .binary_search_by(|(hunk, _)| match hunk {
5789 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5790 DisplayDiffHunk::Unfolded {
5791 display_row_range, ..
5792 } => {
5793 if display_row_range.end <= row {
5794 Ordering::Less
5795 } else if display_row_range.start > row {
5796 Ordering::Greater
5797 } else {
5798 Ordering::Equal
5799 }
5800 }
5801 })
5802 .ok()
5803 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5804 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5805
5806 let mut x = left_offset;
5807 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5808 - indicator_size.width
5809 - left_offset;
5810 x += available_width / 2.;
5811
5812 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5813 y += (line_height - indicator_size.height) / 2.;
5814
5815 button.prepaint_as_root(
5816 gutter_hitbox.origin + point(x, y),
5817 available_space,
5818 window,
5819 cx,
5820 );
5821 button
5822}
5823
5824fn render_inline_blame_entry(
5825 editor: Entity<Editor>,
5826 workspace: WeakEntity<Workspace>,
5827 blame: &Entity<GitBlame>,
5828 blame_entry: BlameEntry,
5829 style: &EditorStyle,
5830 cx: &mut App,
5831) -> Option<AnyElement> {
5832 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
5833 let blame = blame.read(cx);
5834 let details = blame.details_for_entry(&blame_entry);
5835 let repository = blame.repository(cx)?.clone();
5836 renderer.render_inline_blame_entry(
5837 &style.text,
5838 blame_entry,
5839 details,
5840 repository,
5841 workspace,
5842 editor,
5843 cx,
5844 )
5845}
5846
5847fn render_blame_entry(
5848 ix: usize,
5849 blame: &Entity<GitBlame>,
5850 blame_entry: BlameEntry,
5851 style: &EditorStyle,
5852 last_used_color: &mut Option<(PlayerColor, Oid)>,
5853 editor: Entity<Editor>,
5854 workspace: Entity<Workspace>,
5855 renderer: Arc<dyn BlameRenderer>,
5856 cx: &mut App,
5857) -> Option<AnyElement> {
5858 let mut sha_color = cx
5859 .theme()
5860 .players()
5861 .color_for_participant(blame_entry.sha.into());
5862
5863 // If the last color we used is the same as the one we get for this line, but
5864 // the commit SHAs are different, then we try again to get a different color.
5865 match *last_used_color {
5866 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5867 let index: u32 = blame_entry.sha.into();
5868 sha_color = cx.theme().players().color_for_participant(index + 1);
5869 }
5870 _ => {}
5871 };
5872 last_used_color.replace((sha_color, blame_entry.sha));
5873
5874 let blame = blame.read(cx);
5875 let details = blame.details_for_entry(&blame_entry);
5876 let repository = blame.repository(cx)?;
5877 renderer.render_blame_entry(
5878 &style.text,
5879 blame_entry,
5880 details,
5881 repository,
5882 workspace.downgrade(),
5883 editor,
5884 ix,
5885 sha_color.cursor,
5886 cx,
5887 )
5888}
5889
5890#[derive(Debug)]
5891pub(crate) struct LineWithInvisibles {
5892 fragments: SmallVec<[LineFragment; 1]>,
5893 invisibles: Vec<Invisible>,
5894 len: usize,
5895 pub(crate) width: Pixels,
5896 font_size: Pixels,
5897}
5898
5899#[allow(clippy::large_enum_variant)]
5900enum LineFragment {
5901 Text(ShapedLine),
5902 Element {
5903 id: FoldId,
5904 element: Option<AnyElement>,
5905 size: Size<Pixels>,
5906 len: usize,
5907 },
5908}
5909
5910impl fmt::Debug for LineFragment {
5911 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5912 match self {
5913 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5914 LineFragment::Element { size, len, .. } => f
5915 .debug_struct("Element")
5916 .field("size", size)
5917 .field("len", len)
5918 .finish(),
5919 }
5920 }
5921}
5922
5923impl LineWithInvisibles {
5924 fn from_chunks<'a>(
5925 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5926 editor_style: &EditorStyle,
5927 max_line_len: usize,
5928 max_line_count: usize,
5929 editor_mode: EditorMode,
5930 text_width: Pixels,
5931 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5932 window: &mut Window,
5933 cx: &mut App,
5934 ) -> Vec<Self> {
5935 let text_style = &editor_style.text;
5936 let mut layouts = Vec::with_capacity(max_line_count);
5937 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5938 let mut line = String::new();
5939 let mut invisibles = Vec::new();
5940 let mut width = Pixels::ZERO;
5941 let mut len = 0;
5942 let mut styles = Vec::new();
5943 let mut non_whitespace_added = false;
5944 let mut row = 0;
5945 let mut line_exceeded_max_len = false;
5946 let font_size = text_style.font_size.to_pixels(window.rem_size());
5947
5948 let ellipsis = SharedString::from("⋯");
5949
5950 for highlighted_chunk in chunks.chain([HighlightedChunk {
5951 text: "\n",
5952 style: None,
5953 is_tab: false,
5954 replacement: None,
5955 }]) {
5956 if let Some(replacement) = highlighted_chunk.replacement {
5957 if !line.is_empty() {
5958 let shaped_line = window
5959 .text_system()
5960 .shape_line(line.clone().into(), font_size, &styles)
5961 .unwrap();
5962 width += shaped_line.width;
5963 len += shaped_line.len;
5964 fragments.push(LineFragment::Text(shaped_line));
5965 line.clear();
5966 styles.clear();
5967 }
5968
5969 match replacement {
5970 ChunkReplacement::Renderer(renderer) => {
5971 let available_width = if renderer.constrain_width {
5972 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5973 ellipsis.clone()
5974 } else {
5975 SharedString::from(Arc::from(highlighted_chunk.text))
5976 };
5977 let shaped_line = window
5978 .text_system()
5979 .shape_line(
5980 chunk,
5981 font_size,
5982 &[text_style.to_run(highlighted_chunk.text.len())],
5983 )
5984 .unwrap();
5985 AvailableSpace::Definite(shaped_line.width)
5986 } else {
5987 AvailableSpace::MinContent
5988 };
5989
5990 let mut element = (renderer.render)(&mut ChunkRendererContext {
5991 context: cx,
5992 window,
5993 max_width: text_width,
5994 });
5995 let line_height = text_style.line_height_in_pixels(window.rem_size());
5996 let size = element.layout_as_root(
5997 size(available_width, AvailableSpace::Definite(line_height)),
5998 window,
5999 cx,
6000 );
6001
6002 width += size.width;
6003 len += highlighted_chunk.text.len();
6004 fragments.push(LineFragment::Element {
6005 id: renderer.id,
6006 element: Some(element),
6007 size,
6008 len: highlighted_chunk.text.len(),
6009 });
6010 }
6011 ChunkReplacement::Str(x) => {
6012 let text_style = if let Some(style) = highlighted_chunk.style {
6013 Cow::Owned(text_style.clone().highlight(style))
6014 } else {
6015 Cow::Borrowed(text_style)
6016 };
6017
6018 let run = TextRun {
6019 len: x.len(),
6020 font: text_style.font(),
6021 color: text_style.color,
6022 background_color: text_style.background_color,
6023 underline: text_style.underline,
6024 strikethrough: text_style.strikethrough,
6025 };
6026 let line_layout = window
6027 .text_system()
6028 .shape_line(x, font_size, &[run])
6029 .unwrap()
6030 .with_len(highlighted_chunk.text.len());
6031
6032 width += line_layout.width;
6033 len += highlighted_chunk.text.len();
6034 fragments.push(LineFragment::Text(line_layout))
6035 }
6036 }
6037 } else {
6038 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6039 if ix > 0 {
6040 let shaped_line = window
6041 .text_system()
6042 .shape_line(line.clone().into(), font_size, &styles)
6043 .unwrap();
6044 width += shaped_line.width;
6045 len += shaped_line.len;
6046 fragments.push(LineFragment::Text(shaped_line));
6047 layouts.push(Self {
6048 width: mem::take(&mut width),
6049 len: mem::take(&mut len),
6050 fragments: mem::take(&mut fragments),
6051 invisibles: std::mem::take(&mut invisibles),
6052 font_size,
6053 });
6054
6055 line.clear();
6056 styles.clear();
6057 row += 1;
6058 line_exceeded_max_len = false;
6059 non_whitespace_added = false;
6060 if row == max_line_count {
6061 return layouts;
6062 }
6063 }
6064
6065 if !line_chunk.is_empty() && !line_exceeded_max_len {
6066 let text_style = if let Some(style) = highlighted_chunk.style {
6067 Cow::Owned(text_style.clone().highlight(style))
6068 } else {
6069 Cow::Borrowed(text_style)
6070 };
6071
6072 if line.len() + line_chunk.len() > max_line_len {
6073 let mut chunk_len = max_line_len - line.len();
6074 while !line_chunk.is_char_boundary(chunk_len) {
6075 chunk_len -= 1;
6076 }
6077 line_chunk = &line_chunk[..chunk_len];
6078 line_exceeded_max_len = true;
6079 }
6080
6081 styles.push(TextRun {
6082 len: line_chunk.len(),
6083 font: text_style.font(),
6084 color: text_style.color,
6085 background_color: text_style.background_color,
6086 underline: text_style.underline,
6087 strikethrough: text_style.strikethrough,
6088 });
6089
6090 if editor_mode.is_full() {
6091 // Line wrap pads its contents with fake whitespaces,
6092 // avoid printing them
6093 let is_soft_wrapped = is_row_soft_wrapped(row);
6094 if highlighted_chunk.is_tab {
6095 if non_whitespace_added || !is_soft_wrapped {
6096 invisibles.push(Invisible::Tab {
6097 line_start_offset: line.len(),
6098 line_end_offset: line.len() + line_chunk.len(),
6099 });
6100 }
6101 } else {
6102 invisibles.extend(line_chunk.char_indices().filter_map(
6103 |(index, c)| {
6104 let is_whitespace = c.is_whitespace();
6105 non_whitespace_added |= !is_whitespace;
6106 if is_whitespace
6107 && (non_whitespace_added || !is_soft_wrapped)
6108 {
6109 Some(Invisible::Whitespace {
6110 line_offset: line.len() + index,
6111 })
6112 } else {
6113 None
6114 }
6115 },
6116 ))
6117 }
6118 }
6119
6120 line.push_str(line_chunk);
6121 }
6122 }
6123 }
6124 }
6125
6126 layouts
6127 }
6128
6129 fn prepaint(
6130 &mut self,
6131 line_height: Pixels,
6132 scroll_pixel_position: gpui::Point<Pixels>,
6133 row: DisplayRow,
6134 content_origin: gpui::Point<Pixels>,
6135 line_elements: &mut SmallVec<[AnyElement; 1]>,
6136 window: &mut Window,
6137 cx: &mut App,
6138 ) {
6139 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6140 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6141 for fragment in &mut self.fragments {
6142 match fragment {
6143 LineFragment::Text(line) => {
6144 fragment_origin.x += line.width;
6145 }
6146 LineFragment::Element { element, size, .. } => {
6147 let mut element = element
6148 .take()
6149 .expect("you can't prepaint LineWithInvisibles twice");
6150
6151 // Center the element vertically within the line.
6152 let mut element_origin = fragment_origin;
6153 element_origin.y += (line_height - size.height) / 2.;
6154 element.prepaint_at(element_origin, window, cx);
6155 line_elements.push(element);
6156
6157 fragment_origin.x += size.width;
6158 }
6159 }
6160 }
6161 }
6162
6163 fn draw(
6164 &self,
6165 layout: &EditorLayout,
6166 row: DisplayRow,
6167 content_origin: gpui::Point<Pixels>,
6168 whitespace_setting: ShowWhitespaceSetting,
6169 selection_ranges: &[Range<DisplayPoint>],
6170 window: &mut Window,
6171 cx: &mut App,
6172 ) {
6173 let line_height = layout.position_map.line_height;
6174 let line_y = line_height
6175 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6176
6177 let mut fragment_origin =
6178 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6179
6180 for fragment in &self.fragments {
6181 match fragment {
6182 LineFragment::Text(line) => {
6183 line.paint(fragment_origin, line_height, window, cx)
6184 .log_err();
6185 fragment_origin.x += line.width;
6186 }
6187 LineFragment::Element { size, .. } => {
6188 fragment_origin.x += size.width;
6189 }
6190 }
6191 }
6192
6193 self.draw_invisibles(
6194 selection_ranges,
6195 layout,
6196 content_origin,
6197 line_y,
6198 row,
6199 line_height,
6200 whitespace_setting,
6201 window,
6202 cx,
6203 );
6204 }
6205
6206 fn draw_background(
6207 &self,
6208 layout: &EditorLayout,
6209 row: DisplayRow,
6210 content_origin: gpui::Point<Pixels>,
6211 window: &mut Window,
6212 cx: &mut App,
6213 ) {
6214 let line_height = layout.position_map.line_height;
6215 let line_y = line_height
6216 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6217
6218 let mut fragment_origin =
6219 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6220
6221 for fragment in &self.fragments {
6222 match fragment {
6223 LineFragment::Text(line) => {
6224 line.paint_background(fragment_origin, line_height, window, cx)
6225 .log_err();
6226 fragment_origin.x += line.width;
6227 }
6228 LineFragment::Element { size, .. } => {
6229 fragment_origin.x += size.width;
6230 }
6231 }
6232 }
6233 }
6234
6235 fn draw_invisibles(
6236 &self,
6237 selection_ranges: &[Range<DisplayPoint>],
6238 layout: &EditorLayout,
6239 content_origin: gpui::Point<Pixels>,
6240 line_y: Pixels,
6241 row: DisplayRow,
6242 line_height: Pixels,
6243 whitespace_setting: ShowWhitespaceSetting,
6244 window: &mut Window,
6245 cx: &mut App,
6246 ) {
6247 let extract_whitespace_info = |invisible: &Invisible| {
6248 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6249 Invisible::Tab {
6250 line_start_offset,
6251 line_end_offset,
6252 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6253 Invisible::Whitespace { line_offset } => {
6254 (*line_offset, line_offset + 1, &layout.space_invisible)
6255 }
6256 };
6257
6258 let x_offset = self.x_for_index(token_offset);
6259 let invisible_offset =
6260 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6261 let origin = content_origin
6262 + gpui::point(
6263 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6264 line_y,
6265 );
6266
6267 (
6268 [token_offset, token_end_offset],
6269 Box::new(move |window: &mut Window, cx: &mut App| {
6270 invisible_symbol
6271 .paint(origin, line_height, window, cx)
6272 .log_err();
6273 }),
6274 )
6275 };
6276
6277 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6278 match whitespace_setting {
6279 ShowWhitespaceSetting::None => (),
6280 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6281 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6282 let invisible_point = DisplayPoint::new(row, start as u32);
6283 if !selection_ranges
6284 .iter()
6285 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6286 {
6287 return;
6288 }
6289
6290 paint(window, cx);
6291 }),
6292
6293 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6294 // - It is a tab
6295 // - It is adjacent to an edge (start or end)
6296 // - It is adjacent to a whitespace (left or right)
6297 ShowWhitespaceSetting::Boundary => {
6298 // 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
6299 // the above cases.
6300 // Note: We zip in the original `invisibles` to check for tab equality
6301 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6302 for (([start, end], paint), invisible) in
6303 invisible_iter.zip_eq(self.invisibles.iter())
6304 {
6305 let should_render = match (&last_seen, invisible) {
6306 (_, Invisible::Tab { .. }) => true,
6307 (Some((_, last_end, _)), _) => *last_end == start,
6308 _ => false,
6309 };
6310
6311 if should_render || start == 0 || end == self.len {
6312 paint(window, cx);
6313
6314 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6315 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6316 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6317 // Note that we need to make sure that the last one is actually adjacent
6318 if !should_render_last && last_end == start {
6319 paint_last(window, cx);
6320 }
6321 }
6322 }
6323
6324 // Manually render anything within a selection
6325 let invisible_point = DisplayPoint::new(row, start as u32);
6326 if selection_ranges.iter().any(|region| {
6327 region.start <= invisible_point && invisible_point < region.end
6328 }) {
6329 paint(window, cx);
6330 }
6331
6332 last_seen = Some((should_render, end, paint));
6333 }
6334 }
6335 }
6336 }
6337
6338 pub fn x_for_index(&self, index: usize) -> Pixels {
6339 let mut fragment_start_x = Pixels::ZERO;
6340 let mut fragment_start_index = 0;
6341
6342 for fragment in &self.fragments {
6343 match fragment {
6344 LineFragment::Text(shaped_line) => {
6345 let fragment_end_index = fragment_start_index + shaped_line.len;
6346 if index < fragment_end_index {
6347 return fragment_start_x
6348 + shaped_line.x_for_index(index - fragment_start_index);
6349 }
6350 fragment_start_x += shaped_line.width;
6351 fragment_start_index = fragment_end_index;
6352 }
6353 LineFragment::Element { len, size, .. } => {
6354 let fragment_end_index = fragment_start_index + len;
6355 if index < fragment_end_index {
6356 return fragment_start_x;
6357 }
6358 fragment_start_x += size.width;
6359 fragment_start_index = fragment_end_index;
6360 }
6361 }
6362 }
6363
6364 fragment_start_x
6365 }
6366
6367 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6368 let mut fragment_start_x = Pixels::ZERO;
6369 let mut fragment_start_index = 0;
6370
6371 for fragment in &self.fragments {
6372 match fragment {
6373 LineFragment::Text(shaped_line) => {
6374 let fragment_end_x = fragment_start_x + shaped_line.width;
6375 if x < fragment_end_x {
6376 return Some(
6377 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6378 );
6379 }
6380 fragment_start_x = fragment_end_x;
6381 fragment_start_index += shaped_line.len;
6382 }
6383 LineFragment::Element { len, size, .. } => {
6384 let fragment_end_x = fragment_start_x + size.width;
6385 if x < fragment_end_x {
6386 return Some(fragment_start_index);
6387 }
6388 fragment_start_index += len;
6389 fragment_start_x = fragment_end_x;
6390 }
6391 }
6392 }
6393
6394 None
6395 }
6396
6397 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6398 let mut fragment_start_index = 0;
6399
6400 for fragment in &self.fragments {
6401 match fragment {
6402 LineFragment::Text(shaped_line) => {
6403 let fragment_end_index = fragment_start_index + shaped_line.len;
6404 if index < fragment_end_index {
6405 return shaped_line.font_id_for_index(index - fragment_start_index);
6406 }
6407 fragment_start_index = fragment_end_index;
6408 }
6409 LineFragment::Element { len, .. } => {
6410 let fragment_end_index = fragment_start_index + len;
6411 if index < fragment_end_index {
6412 return None;
6413 }
6414 fragment_start_index = fragment_end_index;
6415 }
6416 }
6417 }
6418
6419 None
6420 }
6421}
6422
6423#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6424enum Invisible {
6425 /// A tab character
6426 ///
6427 /// A tab character is internally represented by spaces (configured by the user's tab width)
6428 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6429 /// adjacency checks.
6430 Tab {
6431 line_start_offset: usize,
6432 line_end_offset: usize,
6433 },
6434 Whitespace {
6435 line_offset: usize,
6436 },
6437}
6438
6439impl EditorElement {
6440 /// Returns the rem size to use when rendering the [`EditorElement`].
6441 ///
6442 /// This allows UI elements to scale based on the `buffer_font_size`.
6443 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6444 match self.editor.read(cx).mode {
6445 EditorMode::Full {
6446 scale_ui_elements_with_buffer_font_size,
6447 ..
6448 } => {
6449 if !scale_ui_elements_with_buffer_font_size {
6450 return None;
6451 }
6452 let buffer_font_size = self.style.text.font_size;
6453 match buffer_font_size {
6454 AbsoluteLength::Pixels(pixels) => {
6455 let rem_size_scale = {
6456 // Our default UI font size is 14px on a 16px base scale.
6457 // This means the default UI font size is 0.875rems.
6458 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6459
6460 // We then determine the delta between a single rem and the default font
6461 // size scale.
6462 let default_font_size_delta = 1. - default_font_size_scale;
6463
6464 // Finally, we add this delta to 1rem to get the scale factor that
6465 // should be used to scale up the UI.
6466 1. + default_font_size_delta
6467 };
6468
6469 Some(pixels * rem_size_scale)
6470 }
6471 AbsoluteLength::Rems(rems) => {
6472 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6473 }
6474 }
6475 }
6476 // We currently use single-line and auto-height editors in UI contexts,
6477 // so we don't want to scale everything with the buffer font size, as it
6478 // ends up looking off.
6479 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6480 }
6481 }
6482}
6483
6484impl Element for EditorElement {
6485 type RequestLayoutState = ();
6486 type PrepaintState = EditorLayout;
6487
6488 fn id(&self) -> Option<ElementId> {
6489 None
6490 }
6491
6492 fn request_layout(
6493 &mut self,
6494 _: Option<&GlobalElementId>,
6495 window: &mut Window,
6496 cx: &mut App,
6497 ) -> (gpui::LayoutId, ()) {
6498 let rem_size = self.rem_size(cx);
6499 window.with_rem_size(rem_size, |window| {
6500 self.editor.update(cx, |editor, cx| {
6501 editor.set_style(self.style.clone(), window, cx);
6502
6503 let layout_id = match editor.mode {
6504 EditorMode::SingleLine { auto_width } => {
6505 let rem_size = window.rem_size();
6506
6507 let height = self.style.text.line_height_in_pixels(rem_size);
6508 if auto_width {
6509 let editor_handle = cx.entity().clone();
6510 let style = self.style.clone();
6511 window.request_measured_layout(
6512 Style::default(),
6513 move |_, _, window, cx| {
6514 let editor_snapshot = editor_handle
6515 .update(cx, |editor, cx| editor.snapshot(window, cx));
6516 let line = Self::layout_lines(
6517 DisplayRow(0)..DisplayRow(1),
6518 &editor_snapshot,
6519 &style,
6520 px(f32::MAX),
6521 |_| false, // Single lines never soft wrap
6522 window,
6523 cx,
6524 )
6525 .pop()
6526 .unwrap();
6527
6528 let font_id =
6529 window.text_system().resolve_font(&style.text.font());
6530 let font_size =
6531 style.text.font_size.to_pixels(window.rem_size());
6532 let em_width =
6533 window.text_system().em_width(font_id, font_size).unwrap();
6534
6535 size(line.width + em_width, height)
6536 },
6537 )
6538 } else {
6539 let mut style = Style::default();
6540 style.size.height = height.into();
6541 style.size.width = relative(1.).into();
6542 window.request_layout(style, None, cx)
6543 }
6544 }
6545 EditorMode::AutoHeight { max_lines } => {
6546 let editor_handle = cx.entity().clone();
6547 let max_line_number_width =
6548 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6549 window.request_measured_layout(
6550 Style::default(),
6551 move |known_dimensions, available_space, window, cx| {
6552 editor_handle
6553 .update(cx, |editor, cx| {
6554 compute_auto_height_layout(
6555 editor,
6556 max_lines,
6557 max_line_number_width,
6558 known_dimensions,
6559 available_space.width,
6560 window,
6561 cx,
6562 )
6563 })
6564 .unwrap_or_default()
6565 },
6566 )
6567 }
6568 EditorMode::Full { .. } => {
6569 let mut style = Style::default();
6570 style.size.width = relative(1.).into();
6571 style.size.height = relative(1.).into();
6572 window.request_layout(style, None, cx)
6573 }
6574 };
6575
6576 (layout_id, ())
6577 })
6578 })
6579 }
6580
6581 fn prepaint(
6582 &mut self,
6583 _: Option<&GlobalElementId>,
6584 bounds: Bounds<Pixels>,
6585 _: &mut Self::RequestLayoutState,
6586 window: &mut Window,
6587 cx: &mut App,
6588 ) -> Self::PrepaintState {
6589 let text_style = TextStyleRefinement {
6590 font_size: Some(self.style.text.font_size),
6591 line_height: Some(self.style.text.line_height),
6592 ..Default::default()
6593 };
6594 let focus_handle = self.editor.focus_handle(cx);
6595 window.set_view_id(self.editor.entity_id());
6596 window.set_focus_handle(&focus_handle, cx);
6597
6598 let rem_size = self.rem_size(cx);
6599 window.with_rem_size(rem_size, |window| {
6600 window.with_text_style(Some(text_style), |window| {
6601 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6602 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
6603 (editor.snapshot(window, cx), editor.read_only(cx))
6604 });
6605 let style = self.style.clone();
6606
6607 let font_id = window.text_system().resolve_font(&style.text.font());
6608 let font_size = style.text.font_size.to_pixels(window.rem_size());
6609 let line_height = style.text.line_height_in_pixels(window.rem_size());
6610 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6611 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6612
6613 let glyph_grid_cell = size(em_width, line_height);
6614
6615 let gutter_dimensions = snapshot
6616 .gutter_dimensions(
6617 font_id,
6618 font_size,
6619 self.max_line_number_width(&snapshot, window, cx),
6620 cx,
6621 )
6622 .unwrap_or_default();
6623 let text_width = bounds.size.width - gutter_dimensions.width;
6624
6625 let editor_width =
6626 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6627
6628 snapshot = self.editor.update(cx, |editor, cx| {
6629 editor.last_bounds = Some(bounds);
6630 editor.gutter_dimensions = gutter_dimensions;
6631 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6632
6633 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6634 snapshot
6635 } else {
6636 let wrap_width = match editor.soft_wrap_mode(cx) {
6637 SoftWrap::GitDiff => None,
6638 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6639 SoftWrap::EditorWidth => Some(editor_width),
6640 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6641 SoftWrap::Bounded(column) => {
6642 Some(editor_width.min(column as f32 * em_advance))
6643 }
6644 };
6645
6646 if editor.set_wrap_width(wrap_width.map(|w| w.ceil()), cx) {
6647 editor.snapshot(window, cx)
6648 } else {
6649 snapshot
6650 }
6651 }
6652 });
6653
6654 let wrap_guides = self
6655 .editor
6656 .read(cx)
6657 .wrap_guides(cx)
6658 .iter()
6659 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6660 .collect::<SmallVec<[_; 2]>>();
6661
6662 let hitbox = window.insert_hitbox(bounds, false);
6663 let gutter_hitbox =
6664 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6665 let text_hitbox = window.insert_hitbox(
6666 Bounds {
6667 origin: gutter_hitbox.top_right(),
6668 size: size(text_width, bounds.size.height),
6669 },
6670 false,
6671 );
6672
6673 // Offset the content_bounds from the text_bounds by the gutter margin (which
6674 // is roughly half a character wide) to make hit testing work more like how we want.
6675 let content_offset = point(gutter_dimensions.margin, Pixels::ZERO);
6676 let content_origin = text_hitbox.origin + content_offset;
6677
6678 let editor_text_bounds =
6679 Bounds::from_corners(content_origin, bounds.bottom_right());
6680
6681 let height_in_lines = editor_text_bounds.size.height / line_height;
6682
6683 let max_row = snapshot.max_point().row().as_f32();
6684
6685 // The max scroll position for the top of the window
6686 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6687 (max_row - height_in_lines + 1.).max(0.)
6688 } else {
6689 let settings = EditorSettings::get_global(cx);
6690 match settings.scroll_beyond_last_line {
6691 ScrollBeyondLastLine::OnePage => max_row,
6692 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6693 ScrollBeyondLastLine::VerticalScrollMargin => {
6694 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6695 .max(0.)
6696 }
6697 }
6698 };
6699
6700 // TODO: Autoscrolling for both axes
6701 let mut autoscroll_request = None;
6702 let mut autoscroll_containing_element = false;
6703 let mut autoscroll_horizontally = false;
6704 self.editor.update(cx, |editor, cx| {
6705 autoscroll_request = editor.autoscroll_request();
6706 autoscroll_containing_element =
6707 autoscroll_request.is_some() || editor.has_pending_selection();
6708 // TODO: Is this horizontal or vertical?!
6709 autoscroll_horizontally = editor.autoscroll_vertically(
6710 bounds,
6711 line_height,
6712 max_scroll_top,
6713 window,
6714 cx,
6715 );
6716 snapshot = editor.snapshot(window, cx);
6717 });
6718
6719 let mut scroll_position = snapshot.scroll_position();
6720 // The scroll position is a fractional point, the whole number of which represents
6721 // the top of the window in terms of display rows.
6722 let start_row = DisplayRow(scroll_position.y as u32);
6723 let max_row = snapshot.max_point().row();
6724 let end_row = cmp::min(
6725 (scroll_position.y + height_in_lines).ceil() as u32,
6726 max_row.next_row().0,
6727 );
6728 let end_row = DisplayRow(end_row);
6729
6730 let row_infos = snapshot
6731 .row_infos(start_row)
6732 .take((start_row..end_row).len())
6733 .collect::<Vec<RowInfo>>();
6734 let is_row_soft_wrapped = |row: usize| {
6735 row_infos
6736 .get(row)
6737 .map_or(true, |info| info.buffer_row.is_none())
6738 };
6739
6740 let start_anchor = if start_row == Default::default() {
6741 Anchor::min()
6742 } else {
6743 snapshot.buffer_snapshot.anchor_before(
6744 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6745 )
6746 };
6747 let end_anchor = if end_row > max_row {
6748 Anchor::max()
6749 } else {
6750 snapshot.buffer_snapshot.anchor_before(
6751 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6752 )
6753 };
6754
6755 let mut highlighted_rows = self
6756 .editor
6757 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6758
6759 let is_light = cx.theme().appearance().is_light();
6760
6761 for (ix, row_info) in row_infos.iter().enumerate() {
6762 let Some(diff_status) = row_info.diff_status else {
6763 continue;
6764 };
6765
6766 let background_color = match diff_status.kind {
6767 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6768 DiffHunkStatusKind::Deleted => {
6769 cx.theme().colors().version_control_deleted
6770 }
6771 DiffHunkStatusKind::Modified => {
6772 debug_panic!("modified diff status for row info");
6773 continue;
6774 }
6775 };
6776
6777 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6778
6779 let hollow_highlight = LineHighlight {
6780 background: (background_color.opacity(if is_light {
6781 0.08
6782 } else {
6783 0.06
6784 }))
6785 .into(),
6786 border: Some(if is_light {
6787 background_color.opacity(0.48)
6788 } else {
6789 background_color.opacity(0.36)
6790 }),
6791 };
6792
6793 let filled_highlight =
6794 solid_background(background_color.opacity(hunk_opacity)).into();
6795
6796 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6797 hollow_highlight
6798 } else {
6799 filled_highlight
6800 };
6801
6802 highlighted_rows
6803 .entry(start_row + DisplayRow(ix as u32))
6804 .or_insert(background);
6805 }
6806
6807 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6808 start_anchor..end_anchor,
6809 &snapshot.display_snapshot,
6810 cx.theme().colors(),
6811 );
6812 let highlighted_gutter_ranges =
6813 self.editor.read(cx).gutter_highlights_in_range(
6814 start_anchor..end_anchor,
6815 &snapshot.display_snapshot,
6816 cx,
6817 );
6818
6819 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6820 start_anchor..end_anchor,
6821 &snapshot.display_snapshot,
6822 cx,
6823 );
6824
6825 let (local_selections, selected_buffer_ids): (
6826 Vec<Selection<Point>>,
6827 Vec<BufferId>,
6828 ) = self.editor.update(cx, |editor, cx| {
6829 let all_selections = editor.selections.all::<Point>(cx);
6830 let selected_buffer_ids = if editor.is_singleton(cx) {
6831 Vec::new()
6832 } else {
6833 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6834
6835 for selection in all_selections {
6836 for buffer_id in snapshot
6837 .buffer_snapshot
6838 .buffer_ids_for_range(selection.range())
6839 {
6840 if selected_buffer_ids.last() != Some(&buffer_id) {
6841 selected_buffer_ids.push(buffer_id);
6842 }
6843 }
6844 }
6845
6846 selected_buffer_ids
6847 };
6848
6849 let mut selections = editor
6850 .selections
6851 .disjoint_in_range(start_anchor..end_anchor, cx);
6852 selections.extend(editor.selections.pending(cx));
6853
6854 (selections, selected_buffer_ids)
6855 });
6856
6857 let (selections, mut active_rows, newest_selection_head) = self
6858 .layout_selections(
6859 start_anchor,
6860 end_anchor,
6861 &local_selections,
6862 &snapshot,
6863 start_row,
6864 end_row,
6865 window,
6866 cx,
6867 );
6868 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6869 editor.active_breakpoints(start_row..end_row, window, cx)
6870 });
6871 if cx.has_flag::<Debugger>() {
6872 for display_row in breakpoint_rows.keys() {
6873 active_rows.entry(*display_row).or_default().breakpoint = true;
6874 }
6875 }
6876
6877 let line_numbers = self.layout_line_numbers(
6878 Some(&gutter_hitbox),
6879 gutter_dimensions,
6880 line_height,
6881 scroll_position,
6882 start_row..end_row,
6883 &row_infos,
6884 &active_rows,
6885 newest_selection_head,
6886 &snapshot,
6887 window,
6888 cx,
6889 );
6890
6891 // We add the gutter breakpoint indicator to breakpoint_rows after painting
6892 // line numbers so we don't paint a line number debug accent color if a user
6893 // has their mouse over that line when a breakpoint isn't there
6894 if cx.has_flag::<Debugger>() {
6895 let gutter_breakpoint_indicator =
6896 self.editor.read(cx).gutter_breakpoint_indicator.0;
6897 if let Some((gutter_breakpoint_point, _)) =
6898 gutter_breakpoint_indicator.filter(|(_, is_active)| *is_active)
6899 {
6900 breakpoint_rows
6901 .entry(gutter_breakpoint_point.row())
6902 .or_insert_with(|| {
6903 let position = snapshot.display_point_to_anchor(
6904 gutter_breakpoint_point,
6905 Bias::Right,
6906 );
6907 let breakpoint = Breakpoint::new_standard();
6908
6909 (position, breakpoint)
6910 });
6911 }
6912 }
6913
6914 let mut expand_toggles =
6915 window.with_element_namespace("expand_toggles", |window| {
6916 self.layout_expand_toggles(
6917 &gutter_hitbox,
6918 gutter_dimensions,
6919 em_width,
6920 line_height,
6921 scroll_position,
6922 &row_infos,
6923 window,
6924 cx,
6925 )
6926 });
6927
6928 let mut crease_toggles =
6929 window.with_element_namespace("crease_toggles", |window| {
6930 self.layout_crease_toggles(
6931 start_row..end_row,
6932 &row_infos,
6933 &active_rows,
6934 &snapshot,
6935 window,
6936 cx,
6937 )
6938 });
6939 let crease_trailers =
6940 window.with_element_namespace("crease_trailers", |window| {
6941 self.layout_crease_trailers(
6942 row_infos.iter().copied(),
6943 &snapshot,
6944 window,
6945 cx,
6946 )
6947 });
6948
6949 let display_hunks = self.layout_gutter_diff_hunks(
6950 line_height,
6951 &gutter_hitbox,
6952 start_row..end_row,
6953 &snapshot,
6954 window,
6955 cx,
6956 );
6957
6958 let mut line_layouts = Self::layout_lines(
6959 start_row..end_row,
6960 &snapshot,
6961 &self.style,
6962 editor_width,
6963 is_row_soft_wrapped,
6964 window,
6965 cx,
6966 );
6967 let new_fold_widths = line_layouts
6968 .iter()
6969 .flat_map(|layout| &layout.fragments)
6970 .filter_map(|fragment| {
6971 if let LineFragment::Element { id, size, .. } = fragment {
6972 Some((*id, size.width))
6973 } else {
6974 None
6975 }
6976 });
6977 if self.editor.update(cx, |editor, cx| {
6978 editor.update_fold_widths(new_fold_widths, cx)
6979 }) {
6980 // If the fold widths have changed, we need to prepaint
6981 // the element again to account for any changes in
6982 // wrapping.
6983 return self.prepaint(None, bounds, &mut (), window, cx);
6984 }
6985
6986 let longest_line_blame_width = self
6987 .editor
6988 .update(cx, |editor, cx| {
6989 if !editor.show_git_blame_inline {
6990 return None;
6991 }
6992 let blame = editor.blame.as_ref()?;
6993 let blame_entry = blame
6994 .update(cx, |blame, cx| {
6995 let row_infos =
6996 snapshot.row_infos(snapshot.longest_row()).next()?;
6997 blame.blame_for_rows(&[row_infos], cx).next()
6998 })
6999 .flatten()?;
7000 let mut element = render_inline_blame_entry(
7001 self.editor.clone(),
7002 editor.workspace()?.downgrade(),
7003 blame,
7004 blame_entry,
7005 &style,
7006 cx,
7007 )?;
7008 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7009 Some(
7010 element
7011 .layout_as_root(AvailableSpace::min_size(), window, cx)
7012 .width
7013 + inline_blame_padding,
7014 )
7015 })
7016 .unwrap_or(Pixels::ZERO);
7017
7018 let longest_line_width = layout_line(
7019 snapshot.longest_row(),
7020 &snapshot,
7021 &style,
7022 editor_width,
7023 is_row_soft_wrapped,
7024 window,
7025 cx,
7026 )
7027 .width;
7028
7029 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
7030 text_hitbox.bounds,
7031 glyph_grid_cell,
7032 size(longest_line_width, max_row.as_f32() * line_height),
7033 longest_line_blame_width,
7034 style.scrollbar_width,
7035 editor_width,
7036 EditorSettings::get_global(cx),
7037 );
7038
7039 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
7040
7041 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7042 snapshot.sticky_header_excerpt(scroll_position.y)
7043 } else {
7044 None
7045 };
7046 let sticky_header_excerpt_id =
7047 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7048
7049 let blocks = window.with_element_namespace("blocks", |window| {
7050 self.render_blocks(
7051 start_row..end_row,
7052 &snapshot,
7053 &hitbox,
7054 &text_hitbox,
7055 editor_width,
7056 &mut scroll_width,
7057 &gutter_dimensions,
7058 em_width,
7059 gutter_dimensions.full_width(),
7060 line_height,
7061 &mut line_layouts,
7062 &local_selections,
7063 &selected_buffer_ids,
7064 is_row_soft_wrapped,
7065 sticky_header_excerpt_id,
7066 window,
7067 cx,
7068 )
7069 });
7070 let (mut blocks, row_block_types) = match blocks {
7071 Ok(blocks) => blocks,
7072 Err(resized_blocks) => {
7073 self.editor.update(cx, |editor, cx| {
7074 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7075 });
7076 return self.prepaint(None, bounds, &mut (), window, cx);
7077 }
7078 };
7079
7080 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7081 window.with_element_namespace("blocks", |window| {
7082 self.layout_sticky_buffer_header(
7083 sticky_header_excerpt,
7084 scroll_position.y,
7085 line_height,
7086 &snapshot,
7087 &hitbox,
7088 &selected_buffer_ids,
7089 &blocks,
7090 window,
7091 cx,
7092 )
7093 })
7094 });
7095
7096 let start_buffer_row =
7097 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7098 let end_buffer_row =
7099 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7100
7101 let scroll_max = point(
7102 ((scroll_width - editor_text_bounds.size.width) / em_width).max(0.0),
7103 max_scroll_top,
7104 );
7105
7106 self.editor.update(cx, |editor, cx| {
7107 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7108
7109 let autoscrolled = if autoscroll_horizontally {
7110 editor.autoscroll_horizontally(
7111 start_row,
7112 editor_width - (glyph_grid_cell.width / 2.0)
7113 + style.scrollbar_width,
7114 scroll_width,
7115 em_width,
7116 &line_layouts,
7117 cx,
7118 )
7119 } else {
7120 false
7121 };
7122
7123 if clamped || autoscrolled {
7124 snapshot = editor.snapshot(window, cx);
7125 scroll_position = snapshot.scroll_position();
7126 }
7127 });
7128
7129 let scroll_pixel_position = point(
7130 scroll_position.x * em_width,
7131 scroll_position.y * line_height,
7132 );
7133
7134 let indent_guides = self.layout_indent_guides(
7135 content_origin,
7136 text_hitbox.origin,
7137 start_buffer_row..end_buffer_row,
7138 scroll_pixel_position,
7139 line_height,
7140 &snapshot,
7141 window,
7142 cx,
7143 );
7144
7145 let crease_trailers =
7146 window.with_element_namespace("crease_trailers", |window| {
7147 self.prepaint_crease_trailers(
7148 crease_trailers,
7149 &line_layouts,
7150 line_height,
7151 content_origin,
7152 scroll_pixel_position,
7153 em_width,
7154 window,
7155 cx,
7156 )
7157 });
7158
7159 let (inline_completion_popover, inline_completion_popover_origin) = self
7160 .editor
7161 .update(cx, |editor, cx| {
7162 editor.render_edit_prediction_popover(
7163 &text_hitbox.bounds,
7164 content_origin,
7165 &snapshot,
7166 start_row..end_row,
7167 scroll_position.y,
7168 scroll_position.y + height_in_lines,
7169 &line_layouts,
7170 line_height,
7171 scroll_pixel_position,
7172 newest_selection_head,
7173 editor_width,
7174 &style,
7175 window,
7176 cx,
7177 )
7178 })
7179 .unzip();
7180
7181 let mut inline_diagnostics = self.layout_inline_diagnostics(
7182 &line_layouts,
7183 &crease_trailers,
7184 &row_block_types,
7185 content_origin,
7186 scroll_pixel_position,
7187 inline_completion_popover_origin,
7188 start_row,
7189 end_row,
7190 line_height,
7191 em_width,
7192 &style,
7193 window,
7194 cx,
7195 );
7196
7197 let mut inline_blame = None;
7198 if let Some(newest_selection_head) = newest_selection_head {
7199 let display_row = newest_selection_head.row();
7200 if (start_row..end_row).contains(&display_row)
7201 && !row_block_types.contains_key(&display_row)
7202 {
7203 let line_ix = display_row.minus(start_row) as usize;
7204 let row_info = &row_infos[line_ix];
7205 let line_layout = &line_layouts[line_ix];
7206 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7207 inline_blame = self.layout_inline_blame(
7208 display_row,
7209 row_info,
7210 line_layout,
7211 crease_trailer_layout,
7212 em_width,
7213 content_origin,
7214 scroll_pixel_position,
7215 line_height,
7216 window,
7217 cx,
7218 );
7219 if inline_blame.is_some() {
7220 // Blame overrides inline diagnostics
7221 inline_diagnostics.remove(&display_row);
7222 }
7223 }
7224 }
7225
7226 let blamed_display_rows = self.layout_blame_entries(
7227 &row_infos,
7228 em_width,
7229 scroll_position,
7230 line_height,
7231 &gutter_hitbox,
7232 gutter_dimensions.git_blame_entries_width,
7233 window,
7234 cx,
7235 );
7236
7237 self.editor.update(cx, |editor, cx| {
7238 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7239
7240 let autoscrolled = if autoscroll_horizontally {
7241 editor.autoscroll_horizontally(
7242 start_row,
7243 editor_width - (glyph_grid_cell.width / 2.0)
7244 + style.scrollbar_width,
7245 scroll_width,
7246 em_width,
7247 &line_layouts,
7248 cx,
7249 )
7250 } else {
7251 false
7252 };
7253
7254 if clamped || autoscrolled {
7255 snapshot = editor.snapshot(window, cx);
7256 scroll_position = snapshot.scroll_position();
7257 }
7258 });
7259
7260 let line_elements = self.prepaint_lines(
7261 start_row,
7262 &mut line_layouts,
7263 line_height,
7264 scroll_pixel_position,
7265 content_origin,
7266 window,
7267 cx,
7268 );
7269
7270 window.with_element_namespace("blocks", |window| {
7271 self.layout_blocks(
7272 &mut blocks,
7273 &hitbox,
7274 line_height,
7275 scroll_pixel_position,
7276 window,
7277 cx,
7278 );
7279 });
7280
7281 let cursors = self.collect_cursors(&snapshot, cx);
7282 let visible_row_range = start_row..end_row;
7283 let non_visible_cursors = cursors
7284 .iter()
7285 .any(|c| !visible_row_range.contains(&c.0.row()));
7286
7287 let visible_cursors = self.layout_visible_cursors(
7288 &snapshot,
7289 &selections,
7290 &row_block_types,
7291 start_row..end_row,
7292 &line_layouts,
7293 &text_hitbox,
7294 content_origin,
7295 scroll_position,
7296 scroll_pixel_position,
7297 line_height,
7298 em_width,
7299 em_advance,
7300 autoscroll_containing_element,
7301 window,
7302 cx,
7303 );
7304
7305 let scrollbars_layout = self.layout_scrollbars(
7306 &snapshot,
7307 scrollbar_layout_information,
7308 content_offset,
7309 scroll_position,
7310 non_visible_cursors,
7311 window,
7312 cx,
7313 );
7314
7315 let gutter_settings = EditorSettings::get_global(cx).gutter;
7316
7317 let mut code_actions_indicator = None;
7318 if let Some(newest_selection_head) = newest_selection_head {
7319 let newest_selection_point =
7320 newest_selection_head.to_point(&snapshot.display_snapshot);
7321
7322 if (start_row..end_row).contains(&newest_selection_head.row()) {
7323 self.layout_cursor_popovers(
7324 line_height,
7325 &text_hitbox,
7326 content_origin,
7327 start_row,
7328 scroll_pixel_position,
7329 &line_layouts,
7330 newest_selection_head,
7331 newest_selection_point,
7332 &style,
7333 window,
7334 cx,
7335 );
7336
7337 let show_code_actions = snapshot
7338 .show_code_actions
7339 .unwrap_or(gutter_settings.code_actions);
7340 if show_code_actions {
7341 let newest_selection_point =
7342 newest_selection_head.to_point(&snapshot.display_snapshot);
7343 if !snapshot
7344 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7345 {
7346 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7347 MultiBufferRow(newest_selection_point.row),
7348 );
7349 if let Some((buffer, range)) = buffer {
7350 let buffer_id = buffer.remote_id();
7351 let row = range.start.row;
7352 let has_test_indicator = self
7353 .editor
7354 .read(cx)
7355 .tasks
7356 .contains_key(&(buffer_id, row));
7357
7358 let has_expand_indicator = row_infos
7359 .get(
7360 (newest_selection_head.row() - start_row).0
7361 as usize,
7362 )
7363 .is_some_and(|row_info| row_info.expand_info.is_some());
7364
7365 if !has_test_indicator && !has_expand_indicator {
7366 code_actions_indicator = self
7367 .layout_code_actions_indicator(
7368 line_height,
7369 newest_selection_head,
7370 scroll_pixel_position,
7371 &gutter_dimensions,
7372 &gutter_hitbox,
7373 &mut breakpoint_rows,
7374 &display_hunks,
7375 window,
7376 cx,
7377 );
7378 }
7379 }
7380 }
7381 }
7382 }
7383 }
7384
7385 self.layout_gutter_menu(
7386 line_height,
7387 &text_hitbox,
7388 content_origin,
7389 scroll_pixel_position,
7390 gutter_dimensions.width - gutter_dimensions.left_padding,
7391 window,
7392 cx,
7393 );
7394
7395 let test_indicators = if gutter_settings.runnables {
7396 self.layout_run_indicators(
7397 line_height,
7398 start_row..end_row,
7399 &row_infos,
7400 scroll_pixel_position,
7401 &gutter_dimensions,
7402 &gutter_hitbox,
7403 &display_hunks,
7404 &snapshot,
7405 &mut breakpoint_rows,
7406 window,
7407 cx,
7408 )
7409 } else {
7410 Vec::new()
7411 };
7412
7413 let show_breakpoints = snapshot
7414 .show_breakpoints
7415 .unwrap_or(gutter_settings.breakpoints);
7416 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7417 self.layout_breakpoints(
7418 line_height,
7419 start_row..end_row,
7420 scroll_pixel_position,
7421 &gutter_dimensions,
7422 &gutter_hitbox,
7423 &display_hunks,
7424 &snapshot,
7425 breakpoint_rows,
7426 &row_infos,
7427 window,
7428 cx,
7429 )
7430 } else {
7431 vec![]
7432 };
7433
7434 self.layout_signature_help(
7435 &hitbox,
7436 &text_hitbox,
7437 content_origin,
7438 scroll_pixel_position,
7439 newest_selection_head,
7440 start_row,
7441 &line_layouts,
7442 line_height,
7443 em_width,
7444 window,
7445 cx,
7446 );
7447
7448 if !cx.has_active_drag() {
7449 self.layout_hover_popovers(
7450 &snapshot,
7451 &hitbox,
7452 &text_hitbox,
7453 start_row..end_row,
7454 content_origin,
7455 scroll_pixel_position,
7456 &line_layouts,
7457 line_height,
7458 em_width,
7459 window,
7460 cx,
7461 );
7462 }
7463
7464 let mouse_context_menu = self.layout_mouse_context_menu(
7465 &snapshot,
7466 start_row..end_row,
7467 content_origin,
7468 window,
7469 cx,
7470 );
7471
7472 window.with_element_namespace("crease_toggles", |window| {
7473 self.prepaint_crease_toggles(
7474 &mut crease_toggles,
7475 line_height,
7476 &gutter_dimensions,
7477 gutter_settings,
7478 scroll_pixel_position,
7479 &gutter_hitbox,
7480 window,
7481 cx,
7482 )
7483 });
7484
7485 window.with_element_namespace("expand_toggles", |window| {
7486 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7487 });
7488
7489 let invisible_symbol_font_size = font_size / 2.;
7490 let tab_invisible = window
7491 .text_system()
7492 .shape_line(
7493 "→".into(),
7494 invisible_symbol_font_size,
7495 &[TextRun {
7496 len: "→".len(),
7497 font: self.style.text.font(),
7498 color: cx.theme().colors().editor_invisible,
7499 background_color: None,
7500 underline: None,
7501 strikethrough: None,
7502 }],
7503 )
7504 .unwrap();
7505 let space_invisible = window
7506 .text_system()
7507 .shape_line(
7508 "•".into(),
7509 invisible_symbol_font_size,
7510 &[TextRun {
7511 len: "•".len(),
7512 font: self.style.text.font(),
7513 color: cx.theme().colors().editor_invisible,
7514 background_color: None,
7515 underline: None,
7516 strikethrough: None,
7517 }],
7518 )
7519 .unwrap();
7520
7521 let mode = snapshot.mode;
7522
7523 let position_map = Rc::new(PositionMap {
7524 size: bounds.size,
7525 visible_row_range,
7526 scroll_pixel_position,
7527 scroll_max,
7528 line_layouts,
7529 line_height,
7530 em_width,
7531 em_advance,
7532 snapshot,
7533 gutter_hitbox: gutter_hitbox.clone(),
7534 text_hitbox: text_hitbox.clone(),
7535 });
7536
7537 self.editor.update(cx, |editor, _| {
7538 editor.last_position_map = Some(position_map.clone())
7539 });
7540
7541 let diff_hunk_controls = if is_read_only {
7542 vec![]
7543 } else {
7544 self.layout_diff_hunk_controls(
7545 start_row..end_row,
7546 &row_infos,
7547 &text_hitbox,
7548 &position_map,
7549 newest_selection_head,
7550 line_height,
7551 scroll_pixel_position,
7552 &display_hunks,
7553 self.editor.clone(),
7554 window,
7555 cx,
7556 )
7557 };
7558
7559 EditorLayout {
7560 mode,
7561 position_map,
7562 visible_display_row_range: start_row..end_row,
7563 wrap_guides,
7564 indent_guides,
7565 hitbox,
7566 gutter_hitbox,
7567 display_hunks,
7568 content_origin,
7569 scrollbars_layout,
7570 active_rows,
7571 highlighted_rows,
7572 highlighted_ranges,
7573 highlighted_gutter_ranges,
7574 redacted_ranges,
7575 line_elements,
7576 line_numbers,
7577 blamed_display_rows,
7578 inline_diagnostics,
7579 inline_blame,
7580 blocks,
7581 cursors,
7582 visible_cursors,
7583 selections,
7584 inline_completion_popover,
7585 diff_hunk_controls,
7586 mouse_context_menu,
7587 test_indicators,
7588 breakpoints,
7589 code_actions_indicator,
7590 crease_toggles,
7591 crease_trailers,
7592 tab_invisible,
7593 space_invisible,
7594 sticky_buffer_header,
7595 expand_toggles,
7596 }
7597 })
7598 })
7599 })
7600 }
7601
7602 fn paint(
7603 &mut self,
7604 _: Option<&GlobalElementId>,
7605 bounds: Bounds<gpui::Pixels>,
7606 _: &mut Self::RequestLayoutState,
7607 layout: &mut Self::PrepaintState,
7608 window: &mut Window,
7609 cx: &mut App,
7610 ) {
7611 let focus_handle = self.editor.focus_handle(cx);
7612 let key_context = self
7613 .editor
7614 .update(cx, |editor, cx| editor.key_context(window, cx));
7615
7616 window.set_key_context(key_context);
7617 window.handle_input(
7618 &focus_handle,
7619 ElementInputHandler::new(bounds, self.editor.clone()),
7620 cx,
7621 );
7622 self.register_actions(window, cx);
7623 self.register_key_listeners(window, cx, layout);
7624
7625 let text_style = TextStyleRefinement {
7626 font_size: Some(self.style.text.font_size),
7627 line_height: Some(self.style.text.line_height),
7628 ..Default::default()
7629 };
7630 let rem_size = self.rem_size(cx);
7631 window.with_rem_size(rem_size, |window| {
7632 window.with_text_style(Some(text_style), |window| {
7633 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7634 self.paint_mouse_listeners(layout, window, cx);
7635 self.paint_background(layout, window, cx);
7636 self.paint_indent_guides(layout, window, cx);
7637
7638 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7639 self.paint_blamed_display_rows(layout, window, cx);
7640 self.paint_line_numbers(layout, window, cx);
7641 }
7642
7643 self.paint_text(layout, window, cx);
7644
7645 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7646 self.paint_gutter_highlights(layout, window, cx);
7647 self.paint_gutter_indicators(layout, window, cx);
7648 }
7649
7650 if !layout.blocks.is_empty() {
7651 window.with_element_namespace("blocks", |window| {
7652 self.paint_blocks(layout, window, cx);
7653 });
7654 }
7655
7656 window.with_element_namespace("blocks", |window| {
7657 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7658 sticky_header.paint(window, cx)
7659 }
7660 });
7661
7662 self.paint_scrollbars(layout, window, cx);
7663 self.paint_inline_completion_popover(layout, window, cx);
7664 self.paint_mouse_context_menu(layout, window, cx);
7665 });
7666 })
7667 })
7668 }
7669}
7670
7671pub(super) fn gutter_bounds(
7672 editor_bounds: Bounds<Pixels>,
7673 gutter_dimensions: GutterDimensions,
7674) -> Bounds<Pixels> {
7675 Bounds {
7676 origin: editor_bounds.origin,
7677 size: size(gutter_dimensions.width, editor_bounds.size.height),
7678 }
7679}
7680
7681/// Holds information required for layouting the editor scrollbars.
7682struct ScrollbarLayoutInformation {
7683 /// The bounds of the editor area (excluding the content offset).
7684 editor_bounds: Bounds<Pixels>,
7685 /// The available range to scroll within the document.
7686 scroll_range: Size<Pixels>,
7687 /// The space available for one glyph in the editor.
7688 glyph_grid_cell: Size<Pixels>,
7689}
7690
7691impl ScrollbarLayoutInformation {
7692 pub fn new(
7693 editor_bounds: Bounds<Pixels>,
7694 glyph_grid_cell: Size<Pixels>,
7695 document_size: Size<Pixels>,
7696 longest_line_blame_width: Pixels,
7697 scrollbar_width: Pixels,
7698 editor_width: Pixels,
7699 settings: &EditorSettings,
7700 ) -> Self {
7701 let vertical_overscroll = match settings.scroll_beyond_last_line {
7702 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
7703 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7704 ScrollBeyondLastLine::VerticalScrollMargin => {
7705 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7706 }
7707 };
7708
7709 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7710 glyph_grid_cell.width + scrollbar_width
7711 } else {
7712 px(0.0)
7713 };
7714
7715 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7716
7717 let scroll_range = document_size + overscroll;
7718
7719 ScrollbarLayoutInformation {
7720 editor_bounds,
7721 scroll_range,
7722 glyph_grid_cell,
7723 }
7724 }
7725}
7726
7727impl IntoElement for EditorElement {
7728 type Element = Self;
7729
7730 fn into_element(self) -> Self::Element {
7731 self
7732 }
7733}
7734
7735pub struct EditorLayout {
7736 position_map: Rc<PositionMap>,
7737 hitbox: Hitbox,
7738 gutter_hitbox: Hitbox,
7739 content_origin: gpui::Point<Pixels>,
7740 scrollbars_layout: Option<EditorScrollbars>,
7741 mode: EditorMode,
7742 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7743 indent_guides: Option<Vec<IndentGuideLayout>>,
7744 visible_display_row_range: Range<DisplayRow>,
7745 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7746 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7747 line_elements: SmallVec<[AnyElement; 1]>,
7748 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7749 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7750 blamed_display_rows: Option<Vec<AnyElement>>,
7751 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7752 inline_blame: Option<AnyElement>,
7753 blocks: Vec<BlockLayout>,
7754 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7755 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7756 redacted_ranges: Vec<Range<DisplayPoint>>,
7757 cursors: Vec<(DisplayPoint, Hsla)>,
7758 visible_cursors: Vec<CursorLayout>,
7759 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7760 code_actions_indicator: Option<AnyElement>,
7761 test_indicators: Vec<AnyElement>,
7762 breakpoints: Vec<AnyElement>,
7763 crease_toggles: Vec<Option<AnyElement>>,
7764 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7765 diff_hunk_controls: Vec<AnyElement>,
7766 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7767 inline_completion_popover: Option<AnyElement>,
7768 mouse_context_menu: Option<AnyElement>,
7769 tab_invisible: ShapedLine,
7770 space_invisible: ShapedLine,
7771 sticky_buffer_header: Option<AnyElement>,
7772}
7773
7774impl EditorLayout {
7775 fn line_end_overshoot(&self) -> Pixels {
7776 0.15 * self.position_map.line_height
7777 }
7778}
7779
7780struct LineNumberLayout {
7781 shaped_line: ShapedLine,
7782 hitbox: Option<Hitbox>,
7783}
7784
7785struct ColoredRange<T> {
7786 start: T,
7787 end: T,
7788 color: Hsla,
7789}
7790
7791impl Along for ScrollbarAxes {
7792 type Unit = bool;
7793
7794 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7795 match axis {
7796 ScrollbarAxis::Horizontal => self.horizontal,
7797 ScrollbarAxis::Vertical => self.vertical,
7798 }
7799 }
7800
7801 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
7802 match axis {
7803 ScrollbarAxis::Horizontal => ScrollbarAxes {
7804 horizontal: f(self.horizontal),
7805 vertical: self.vertical,
7806 },
7807 ScrollbarAxis::Vertical => ScrollbarAxes {
7808 horizontal: self.horizontal,
7809 vertical: f(self.vertical),
7810 },
7811 }
7812 }
7813}
7814
7815#[derive(Clone)]
7816struct EditorScrollbars {
7817 pub vertical: Option<ScrollbarLayout>,
7818 pub horizontal: Option<ScrollbarLayout>,
7819 pub visible: bool,
7820}
7821
7822impl EditorScrollbars {
7823 pub fn from_scrollbar_axes(
7824 settings_visibility: ScrollbarAxes,
7825 layout_information: &ScrollbarLayoutInformation,
7826 content_offset: gpui::Point<Pixels>,
7827 scroll_position: gpui::Point<f32>,
7828 scrollbar_width: Pixels,
7829 show_scrollbars: bool,
7830 window: &mut Window,
7831 ) -> Self {
7832 let ScrollbarLayoutInformation {
7833 editor_bounds,
7834 scroll_range,
7835 glyph_grid_cell,
7836 } = layout_information;
7837
7838 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
7839 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
7840 Corner::BottomLeft,
7841 editor_bounds.bottom_left(),
7842 size(
7843 if settings_visibility.vertical {
7844 editor_bounds.size.width - scrollbar_width
7845 } else {
7846 editor_bounds.size.width
7847 },
7848 scrollbar_width,
7849 ),
7850 ),
7851 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
7852 Corner::TopRight,
7853 editor_bounds.top_right(),
7854 size(scrollbar_width, editor_bounds.size.height),
7855 ),
7856 };
7857
7858 let mut create_scrollbar_layout = |axis| {
7859 settings_visibility
7860 .along(axis)
7861 .then(|| {
7862 (
7863 editor_bounds.size.along(axis) - content_offset.along(axis),
7864 scroll_range.along(axis),
7865 )
7866 })
7867 .filter(|(editor_content_size, scroll_range)| {
7868 // The scrollbar should only be rendered if the content does
7869 // not entirely fit into the editor
7870 // However, this only applies to the horizontal scrollbar, as information about the
7871 // vertical scrollbar layout is always needed for scrollbar diagnostics.
7872 axis != ScrollbarAxis::Horizontal || editor_content_size < scroll_range
7873 })
7874 .map(|(editor_content_size, scroll_range)| {
7875 ScrollbarLayout::new(
7876 window.insert_hitbox(scrollbar_bounds_for(axis), false),
7877 editor_content_size,
7878 scroll_range,
7879 glyph_grid_cell.along(axis),
7880 content_offset.along(axis),
7881 scroll_position.along(axis),
7882 axis,
7883 )
7884 })
7885 };
7886
7887 Self {
7888 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
7889 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
7890 visible: show_scrollbars,
7891 }
7892 }
7893
7894 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
7895 [
7896 (&self.vertical, ScrollbarAxis::Vertical),
7897 (&self.horizontal, ScrollbarAxis::Horizontal),
7898 ]
7899 .into_iter()
7900 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
7901 }
7902
7903 /// Returns the currently hovered scrollbar axis, if any.
7904 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
7905 self.iter_scrollbars()
7906 .find(|s| s.0.hitbox.is_hovered(window))
7907 }
7908}
7909
7910#[derive(Clone)]
7911struct ScrollbarLayout {
7912 hitbox: Hitbox,
7913 visible_range: Range<f32>,
7914 text_unit_size: Pixels,
7915 content_offset: Pixels,
7916 thumb_size: Pixels,
7917 axis: ScrollbarAxis,
7918}
7919
7920impl ScrollbarLayout {
7921 const BORDER_WIDTH: Pixels = px(1.0);
7922 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7923 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7924 const MIN_THUMB_SIZE: Pixels = px(25.0);
7925
7926 fn new(
7927 scrollbar_track_hitbox: Hitbox,
7928 editor_content_size: Pixels,
7929 scroll_range: Pixels,
7930 glyph_space: Pixels,
7931 content_offset: Pixels,
7932 scroll_position: f32,
7933 axis: ScrollbarAxis,
7934 ) -> Self {
7935 let track_bounds = scrollbar_track_hitbox.bounds;
7936 // The length of the track available to the scrollbar thumb. We deliberately
7937 // exclude the content size here so that the thumb aligns with the content.
7938 let track_length = track_bounds.size.along(axis) - content_offset;
7939
7940 let text_units_per_page = editor_content_size / glyph_space;
7941 let visible_range = scroll_position..scroll_position + text_units_per_page;
7942 let total_text_units = scroll_range / glyph_space;
7943
7944 let thumb_percentage = text_units_per_page / total_text_units;
7945 let thumb_size = (track_length * thumb_percentage)
7946 .max(ScrollbarLayout::MIN_THUMB_SIZE)
7947 .min(track_length);
7948 let text_unit_size =
7949 (track_length - thumb_size) / (total_text_units - text_units_per_page).max(0.);
7950
7951 ScrollbarLayout {
7952 hitbox: scrollbar_track_hitbox,
7953 visible_range,
7954 text_unit_size,
7955 content_offset,
7956 thumb_size,
7957 axis,
7958 }
7959 }
7960
7961 fn thumb_bounds(&self) -> Bounds<Pixels> {
7962 let scrollbar_track = &self.hitbox.bounds;
7963 Bounds::new(
7964 scrollbar_track
7965 .origin
7966 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
7967 scrollbar_track
7968 .size
7969 .apply_along(self.axis, |_| self.thumb_size),
7970 )
7971 }
7972
7973 fn thumb_origin(&self, origin: Pixels) -> Pixels {
7974 origin + self.content_offset + self.visible_range.start * self.text_unit_size
7975 }
7976
7977 fn marker_quads_for_ranges(
7978 &self,
7979 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7980 column: Option<usize>,
7981 ) -> Vec<PaintQuad> {
7982 struct MinMax {
7983 min: Pixels,
7984 max: Pixels,
7985 }
7986 let (x_range, height_limit) = if let Some(column) = column {
7987 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7988 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7989 let end = start + column_width;
7990 (
7991 Range { start, end },
7992 MinMax {
7993 min: Self::MIN_MARKER_HEIGHT,
7994 max: px(f32::MAX),
7995 },
7996 )
7997 } else {
7998 (
7999 Range {
8000 start: Self::BORDER_WIDTH,
8001 end: self.hitbox.size.width,
8002 },
8003 MinMax {
8004 min: Self::LINE_MARKER_HEIGHT,
8005 max: Self::LINE_MARKER_HEIGHT,
8006 },
8007 )
8008 };
8009
8010 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
8011 let mut pixel_ranges = row_ranges
8012 .into_iter()
8013 .map(|range| {
8014 let start_y = row_to_y(range.start);
8015 let end_y = row_to_y(range.end)
8016 + self
8017 .text_unit_size
8018 .max(height_limit.min)
8019 .min(height_limit.max);
8020 ColoredRange {
8021 start: start_y,
8022 end: end_y,
8023 color: range.color,
8024 }
8025 })
8026 .peekable();
8027
8028 let mut quads = Vec::new();
8029 while let Some(mut pixel_range) = pixel_ranges.next() {
8030 while let Some(next_pixel_range) = pixel_ranges.peek() {
8031 if pixel_range.end >= next_pixel_range.start - px(1.0)
8032 && pixel_range.color == next_pixel_range.color
8033 {
8034 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8035 pixel_ranges.next();
8036 } else {
8037 break;
8038 }
8039 }
8040
8041 let bounds = Bounds::from_corners(
8042 point(x_range.start, pixel_range.start),
8043 point(x_range.end, pixel_range.end),
8044 );
8045 quads.push(quad(
8046 bounds,
8047 Corners::default(),
8048 pixel_range.color,
8049 Edges::default(),
8050 Hsla::transparent_black(),
8051 BorderStyle::default(),
8052 ));
8053 }
8054
8055 quads
8056 }
8057}
8058
8059struct CreaseTrailerLayout {
8060 element: AnyElement,
8061 bounds: Bounds<Pixels>,
8062}
8063
8064pub(crate) struct PositionMap {
8065 pub size: Size<Pixels>,
8066 pub line_height: Pixels,
8067 pub scroll_pixel_position: gpui::Point<Pixels>,
8068 pub scroll_max: gpui::Point<f32>,
8069 pub em_width: Pixels,
8070 pub em_advance: Pixels,
8071 pub visible_row_range: Range<DisplayRow>,
8072 pub line_layouts: Vec<LineWithInvisibles>,
8073 pub snapshot: EditorSnapshot,
8074 pub text_hitbox: Hitbox,
8075 pub gutter_hitbox: Hitbox,
8076}
8077
8078#[derive(Debug, Copy, Clone)]
8079pub struct PointForPosition {
8080 pub previous_valid: DisplayPoint,
8081 pub next_valid: DisplayPoint,
8082 pub exact_unclipped: DisplayPoint,
8083 pub column_overshoot_after_line_end: u32,
8084}
8085
8086impl PointForPosition {
8087 pub fn as_valid(&self) -> Option<DisplayPoint> {
8088 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8089 Some(self.previous_valid)
8090 } else {
8091 None
8092 }
8093 }
8094}
8095
8096impl PositionMap {
8097 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8098 let text_bounds = self.text_hitbox.bounds;
8099 let scroll_position = self.snapshot.scroll_position();
8100 let position = position - text_bounds.origin;
8101 let y = position.y.max(px(0.)).min(self.size.height);
8102 let x = position.x + (scroll_position.x * self.em_width);
8103 let row = ((y / self.line_height) + scroll_position.y) as u32;
8104
8105 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8106 .line_layouts
8107 .get(row as usize - scroll_position.y as usize)
8108 {
8109 if let Some(ix) = line.index_for_x(x) {
8110 (ix as u32, px(0.))
8111 } else {
8112 (line.len as u32, px(0.).max(x - line.width))
8113 }
8114 } else {
8115 (0, x)
8116 };
8117
8118 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8119 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8120 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8121
8122 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8123 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8124 PointForPosition {
8125 previous_valid,
8126 next_valid,
8127 exact_unclipped,
8128 column_overshoot_after_line_end,
8129 }
8130 }
8131}
8132
8133struct BlockLayout {
8134 id: BlockId,
8135 x_offset: Pixels,
8136 row: Option<DisplayRow>,
8137 element: AnyElement,
8138 available_space: Size<AvailableSpace>,
8139 style: BlockStyle,
8140 overlaps_gutter: bool,
8141 is_buffer_header: bool,
8142}
8143
8144pub fn layout_line(
8145 row: DisplayRow,
8146 snapshot: &EditorSnapshot,
8147 style: &EditorStyle,
8148 text_width: Pixels,
8149 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8150 window: &mut Window,
8151 cx: &mut App,
8152) -> LineWithInvisibles {
8153 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8154 LineWithInvisibles::from_chunks(
8155 chunks,
8156 &style,
8157 MAX_LINE_LEN,
8158 1,
8159 snapshot.mode,
8160 text_width,
8161 is_row_soft_wrapped,
8162 window,
8163 cx,
8164 )
8165 .pop()
8166 .unwrap()
8167}
8168
8169#[derive(Debug)]
8170pub struct IndentGuideLayout {
8171 origin: gpui::Point<Pixels>,
8172 length: Pixels,
8173 single_indent_width: Pixels,
8174 depth: u32,
8175 active: bool,
8176 settings: IndentGuideSettings,
8177}
8178
8179pub struct CursorLayout {
8180 origin: gpui::Point<Pixels>,
8181 block_width: Pixels,
8182 line_height: Pixels,
8183 color: Hsla,
8184 shape: CursorShape,
8185 block_text: Option<ShapedLine>,
8186 cursor_name: Option<AnyElement>,
8187}
8188
8189#[derive(Debug)]
8190pub struct CursorName {
8191 string: SharedString,
8192 color: Hsla,
8193 is_top_row: bool,
8194}
8195
8196impl CursorLayout {
8197 pub fn new(
8198 origin: gpui::Point<Pixels>,
8199 block_width: Pixels,
8200 line_height: Pixels,
8201 color: Hsla,
8202 shape: CursorShape,
8203 block_text: Option<ShapedLine>,
8204 ) -> CursorLayout {
8205 CursorLayout {
8206 origin,
8207 block_width,
8208 line_height,
8209 color,
8210 shape,
8211 block_text,
8212 cursor_name: None,
8213 }
8214 }
8215
8216 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8217 Bounds {
8218 origin: self.origin + origin,
8219 size: size(self.block_width, self.line_height),
8220 }
8221 }
8222
8223 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8224 match self.shape {
8225 CursorShape::Bar => Bounds {
8226 origin: self.origin + origin,
8227 size: size(px(2.0), self.line_height),
8228 },
8229 CursorShape::Block | CursorShape::Hollow => Bounds {
8230 origin: self.origin + origin,
8231 size: size(self.block_width, self.line_height),
8232 },
8233 CursorShape::Underline => Bounds {
8234 origin: self.origin
8235 + origin
8236 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8237 size: size(self.block_width, px(2.0)),
8238 },
8239 }
8240 }
8241
8242 pub fn layout(
8243 &mut self,
8244 origin: gpui::Point<Pixels>,
8245 cursor_name: Option<CursorName>,
8246 window: &mut Window,
8247 cx: &mut App,
8248 ) {
8249 if let Some(cursor_name) = cursor_name {
8250 let bounds = self.bounds(origin);
8251 let text_size = self.line_height / 1.5;
8252
8253 let name_origin = if cursor_name.is_top_row {
8254 point(bounds.right() - px(1.), bounds.top())
8255 } else {
8256 match self.shape {
8257 CursorShape::Bar => point(
8258 bounds.right() - px(2.),
8259 bounds.top() - text_size / 2. - px(1.),
8260 ),
8261 _ => point(
8262 bounds.right() - px(1.),
8263 bounds.top() - text_size / 2. - px(1.),
8264 ),
8265 }
8266 };
8267 let mut name_element = div()
8268 .bg(self.color)
8269 .text_size(text_size)
8270 .px_0p5()
8271 .line_height(text_size + px(2.))
8272 .text_color(cursor_name.color)
8273 .child(cursor_name.string.clone())
8274 .into_any_element();
8275
8276 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8277
8278 self.cursor_name = Some(name_element);
8279 }
8280 }
8281
8282 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8283 let bounds = self.bounds(origin);
8284
8285 //Draw background or border quad
8286 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8287 outline(bounds, self.color, BorderStyle::Solid)
8288 } else {
8289 fill(bounds, self.color)
8290 };
8291
8292 if let Some(name) = &mut self.cursor_name {
8293 name.paint(window, cx);
8294 }
8295
8296 window.paint_quad(cursor);
8297
8298 if let Some(block_text) = &self.block_text {
8299 block_text
8300 .paint(self.origin + origin, self.line_height, window, cx)
8301 .log_err();
8302 }
8303 }
8304
8305 pub fn shape(&self) -> CursorShape {
8306 self.shape
8307 }
8308}
8309
8310#[derive(Debug)]
8311pub struct HighlightedRange {
8312 pub start_y: Pixels,
8313 pub line_height: Pixels,
8314 pub lines: Vec<HighlightedRangeLine>,
8315 pub color: Hsla,
8316 pub corner_radius: Pixels,
8317}
8318
8319#[derive(Debug)]
8320pub struct HighlightedRangeLine {
8321 pub start_x: Pixels,
8322 pub end_x: Pixels,
8323}
8324
8325impl HighlightedRange {
8326 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8327 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8328 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8329 self.paint_lines(
8330 self.start_y + self.line_height,
8331 &self.lines[1..],
8332 bounds,
8333 window,
8334 );
8335 } else {
8336 self.paint_lines(self.start_y, &self.lines, bounds, window);
8337 }
8338 }
8339
8340 fn paint_lines(
8341 &self,
8342 start_y: Pixels,
8343 lines: &[HighlightedRangeLine],
8344 _bounds: Bounds<Pixels>,
8345 window: &mut Window,
8346 ) {
8347 if lines.is_empty() {
8348 return;
8349 }
8350
8351 let first_line = lines.first().unwrap();
8352 let last_line = lines.last().unwrap();
8353
8354 let first_top_left = point(first_line.start_x, start_y);
8355 let first_top_right = point(first_line.end_x, start_y);
8356
8357 let curve_height = point(Pixels::ZERO, self.corner_radius);
8358 let curve_width = |start_x: Pixels, end_x: Pixels| {
8359 let max = (end_x - start_x) / 2.;
8360 let width = if max < self.corner_radius {
8361 max
8362 } else {
8363 self.corner_radius
8364 };
8365
8366 point(width, Pixels::ZERO)
8367 };
8368
8369 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8370 let mut builder = gpui::PathBuilder::fill();
8371 builder.move_to(first_top_right - top_curve_width);
8372 builder.curve_to(first_top_right + curve_height, first_top_right);
8373
8374 let mut iter = lines.iter().enumerate().peekable();
8375 while let Some((ix, line)) = iter.next() {
8376 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8377
8378 if let Some((_, next_line)) = iter.peek() {
8379 let next_top_right = point(next_line.end_x, bottom_right.y);
8380
8381 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8382 Ordering::Equal => {
8383 builder.line_to(bottom_right);
8384 }
8385 Ordering::Less => {
8386 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8387 builder.line_to(bottom_right - curve_height);
8388 if self.corner_radius > Pixels::ZERO {
8389 builder.curve_to(bottom_right - curve_width, bottom_right);
8390 }
8391 builder.line_to(next_top_right + curve_width);
8392 if self.corner_radius > Pixels::ZERO {
8393 builder.curve_to(next_top_right + curve_height, next_top_right);
8394 }
8395 }
8396 Ordering::Greater => {
8397 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8398 builder.line_to(bottom_right - curve_height);
8399 if self.corner_radius > Pixels::ZERO {
8400 builder.curve_to(bottom_right + curve_width, bottom_right);
8401 }
8402 builder.line_to(next_top_right - curve_width);
8403 if self.corner_radius > Pixels::ZERO {
8404 builder.curve_to(next_top_right + curve_height, next_top_right);
8405 }
8406 }
8407 }
8408 } else {
8409 let curve_width = curve_width(line.start_x, line.end_x);
8410 builder.line_to(bottom_right - curve_height);
8411 if self.corner_radius > Pixels::ZERO {
8412 builder.curve_to(bottom_right - curve_width, bottom_right);
8413 }
8414
8415 let bottom_left = point(line.start_x, bottom_right.y);
8416 builder.line_to(bottom_left + curve_width);
8417 if self.corner_radius > Pixels::ZERO {
8418 builder.curve_to(bottom_left - curve_height, bottom_left);
8419 }
8420 }
8421 }
8422
8423 if first_line.start_x > last_line.start_x {
8424 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8425 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8426 builder.line_to(second_top_left + curve_height);
8427 if self.corner_radius > Pixels::ZERO {
8428 builder.curve_to(second_top_left + curve_width, second_top_left);
8429 }
8430 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8431 builder.line_to(first_bottom_left - curve_width);
8432 if self.corner_radius > Pixels::ZERO {
8433 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8434 }
8435 }
8436
8437 builder.line_to(first_top_left + curve_height);
8438 if self.corner_radius > Pixels::ZERO {
8439 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8440 }
8441 builder.line_to(first_top_right - top_curve_width);
8442
8443 if let Ok(path) = builder.build() {
8444 window.paint_path(path, self.color);
8445 }
8446 }
8447}
8448
8449enum CursorPopoverType {
8450 CodeContextMenu,
8451 EditPrediction,
8452}
8453
8454pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8455 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
8456}
8457
8458fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8459 (delta.pow(1.2) / 300.0).into()
8460}
8461
8462pub fn register_action<T: Action>(
8463 editor: &Entity<Editor>,
8464 window: &mut Window,
8465 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8466) {
8467 let editor = editor.clone();
8468 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8469 let action = action.downcast_ref().unwrap();
8470 if phase == DispatchPhase::Bubble {
8471 editor.update(cx, |editor, cx| {
8472 listener(editor, action, window, cx);
8473 })
8474 }
8475 })
8476}
8477
8478fn compute_auto_height_layout(
8479 editor: &mut Editor,
8480 max_lines: usize,
8481 max_line_number_width: Pixels,
8482 known_dimensions: Size<Option<Pixels>>,
8483 available_width: AvailableSpace,
8484 window: &mut Window,
8485 cx: &mut Context<Editor>,
8486) -> Option<Size<Pixels>> {
8487 let width = known_dimensions.width.or({
8488 if let AvailableSpace::Definite(available_width) = available_width {
8489 Some(available_width)
8490 } else {
8491 None
8492 }
8493 })?;
8494 if let Some(height) = known_dimensions.height {
8495 return Some(size(width, height));
8496 }
8497
8498 let style = editor.style.as_ref().unwrap();
8499 let font_id = window.text_system().resolve_font(&style.text.font());
8500 let font_size = style.text.font_size.to_pixels(window.rem_size());
8501 let line_height = style.text.line_height_in_pixels(window.rem_size());
8502 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8503
8504 let mut snapshot = editor.snapshot(window, cx);
8505 let gutter_dimensions = snapshot
8506 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8507 .unwrap_or_default();
8508
8509 editor.gutter_dimensions = gutter_dimensions;
8510 let text_width = width - gutter_dimensions.width;
8511 let overscroll = size(em_width, px(0.));
8512
8513 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8514 if editor.set_wrap_width(Some(editor_width), cx) {
8515 snapshot = editor.snapshot(window, cx);
8516 }
8517
8518 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8519 let height = scroll_height
8520 .max(line_height)
8521 .min(line_height * max_lines as f32);
8522
8523 Some(size(width, height))
8524}
8525
8526#[cfg(test)]
8527mod tests {
8528 use super::*;
8529 use crate::{
8530 Editor, MultiBuffer,
8531 display_map::{BlockPlacement, BlockProperties},
8532 editor_tests::{init_test, update_test_language_settings},
8533 };
8534 use gpui::{TestAppContext, VisualTestContext};
8535 use language::language_settings;
8536 use log::info;
8537 use std::num::NonZeroU32;
8538 use util::test::sample_text;
8539
8540 #[gpui::test]
8541 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8542 init_test(cx, |_| {});
8543 let window = cx.add_window(|window, cx| {
8544 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8545 Editor::new(EditorMode::full(), buffer, None, window, cx)
8546 });
8547
8548 let editor = window.root(cx).unwrap();
8549 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8550 let line_height = window
8551 .update(cx, |_, window, _| {
8552 style.text.line_height_in_pixels(window.rem_size())
8553 })
8554 .unwrap();
8555 let element = EditorElement::new(&editor, style);
8556 let snapshot = window
8557 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8558 .unwrap();
8559
8560 let layouts = cx
8561 .update_window(*window, |_, window, cx| {
8562 element.layout_line_numbers(
8563 None,
8564 GutterDimensions {
8565 left_padding: Pixels::ZERO,
8566 right_padding: Pixels::ZERO,
8567 width: px(30.0),
8568 margin: Pixels::ZERO,
8569 git_blame_entries_width: None,
8570 },
8571 line_height,
8572 gpui::Point::default(),
8573 DisplayRow(0)..DisplayRow(6),
8574 &(0..6)
8575 .map(|row| RowInfo {
8576 buffer_row: Some(row),
8577 ..Default::default()
8578 })
8579 .collect::<Vec<_>>(),
8580 &BTreeMap::default(),
8581 Some(DisplayPoint::new(DisplayRow(0), 0)),
8582 &snapshot,
8583 window,
8584 cx,
8585 )
8586 })
8587 .unwrap();
8588 assert_eq!(layouts.len(), 6);
8589
8590 let relative_rows = window
8591 .update(cx, |editor, window, cx| {
8592 let snapshot = editor.snapshot(window, cx);
8593 element.calculate_relative_line_numbers(
8594 &snapshot,
8595 &(DisplayRow(0)..DisplayRow(6)),
8596 Some(DisplayRow(3)),
8597 )
8598 })
8599 .unwrap();
8600 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8601 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8602 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8603 // current line has no relative number
8604 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8605 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8606
8607 // works if cursor is before screen
8608 let relative_rows = window
8609 .update(cx, |editor, window, cx| {
8610 let snapshot = editor.snapshot(window, cx);
8611 element.calculate_relative_line_numbers(
8612 &snapshot,
8613 &(DisplayRow(3)..DisplayRow(6)),
8614 Some(DisplayRow(1)),
8615 )
8616 })
8617 .unwrap();
8618 assert_eq!(relative_rows.len(), 3);
8619 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8620 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8621 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8622
8623 // works if cursor is after screen
8624 let relative_rows = window
8625 .update(cx, |editor, window, cx| {
8626 let snapshot = editor.snapshot(window, cx);
8627 element.calculate_relative_line_numbers(
8628 &snapshot,
8629 &(DisplayRow(0)..DisplayRow(3)),
8630 Some(DisplayRow(6)),
8631 )
8632 })
8633 .unwrap();
8634 assert_eq!(relative_rows.len(), 3);
8635 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8636 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8637 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8638 }
8639
8640 #[gpui::test]
8641 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8642 init_test(cx, |_| {});
8643
8644 let window = cx.add_window(|window, cx| {
8645 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8646 Editor::new(EditorMode::full(), buffer, None, window, cx)
8647 });
8648 let cx = &mut VisualTestContext::from_window(*window, cx);
8649 let editor = window.root(cx).unwrap();
8650 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8651
8652 window
8653 .update(cx, |editor, window, cx| {
8654 editor.cursor_shape = CursorShape::Block;
8655 editor.change_selections(None, window, cx, |s| {
8656 s.select_ranges([
8657 Point::new(0, 0)..Point::new(1, 0),
8658 Point::new(3, 2)..Point::new(3, 3),
8659 Point::new(5, 6)..Point::new(6, 0),
8660 ]);
8661 });
8662 })
8663 .unwrap();
8664
8665 let (_, state) = cx.draw(
8666 point(px(500.), px(500.)),
8667 size(px(500.), px(500.)),
8668 |_, _| EditorElement::new(&editor, style),
8669 );
8670
8671 assert_eq!(state.selections.len(), 1);
8672 let local_selections = &state.selections[0].1;
8673 assert_eq!(local_selections.len(), 3);
8674 // moves cursor back one line
8675 assert_eq!(
8676 local_selections[0].head,
8677 DisplayPoint::new(DisplayRow(0), 6)
8678 );
8679 assert_eq!(
8680 local_selections[0].range,
8681 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8682 );
8683
8684 // moves cursor back one column
8685 assert_eq!(
8686 local_selections[1].range,
8687 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8688 );
8689 assert_eq!(
8690 local_selections[1].head,
8691 DisplayPoint::new(DisplayRow(3), 2)
8692 );
8693
8694 // leaves cursor on the max point
8695 assert_eq!(
8696 local_selections[2].range,
8697 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8698 );
8699 assert_eq!(
8700 local_selections[2].head,
8701 DisplayPoint::new(DisplayRow(6), 0)
8702 );
8703
8704 // active lines does not include 1 (even though the range of the selection does)
8705 assert_eq!(
8706 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8707 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8708 );
8709 }
8710
8711 #[gpui::test]
8712 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8713 init_test(cx, |_| {});
8714
8715 let window = cx.add_window(|window, cx| {
8716 let buffer = MultiBuffer::build_simple("", cx);
8717 Editor::new(EditorMode::full(), buffer, None, window, cx)
8718 });
8719 let cx = &mut VisualTestContext::from_window(*window, cx);
8720 let editor = window.root(cx).unwrap();
8721 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8722 window
8723 .update(cx, |editor, window, cx| {
8724 editor.set_placeholder_text("hello", cx);
8725 editor.insert_blocks(
8726 [BlockProperties {
8727 style: BlockStyle::Fixed,
8728 placement: BlockPlacement::Above(Anchor::min()),
8729 height: Some(3),
8730 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8731 priority: 0,
8732 }],
8733 None,
8734 cx,
8735 );
8736
8737 // Blur the editor so that it displays placeholder text.
8738 window.blur();
8739 })
8740 .unwrap();
8741
8742 let (_, state) = cx.draw(
8743 point(px(500.), px(500.)),
8744 size(px(500.), px(500.)),
8745 |_, _| EditorElement::new(&editor, style),
8746 );
8747 assert_eq!(state.position_map.line_layouts.len(), 4);
8748 assert_eq!(state.line_numbers.len(), 1);
8749 assert_eq!(
8750 state
8751 .line_numbers
8752 .get(&MultiBufferRow(0))
8753 .map(|line_number| line_number.shaped_line.text.as_ref()),
8754 Some("1")
8755 );
8756 }
8757
8758 #[gpui::test]
8759 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8760 const TAB_SIZE: u32 = 4;
8761
8762 let input_text = "\t \t|\t| a b";
8763 let expected_invisibles = vec![
8764 Invisible::Tab {
8765 line_start_offset: 0,
8766 line_end_offset: TAB_SIZE as usize,
8767 },
8768 Invisible::Whitespace {
8769 line_offset: TAB_SIZE as usize,
8770 },
8771 Invisible::Tab {
8772 line_start_offset: TAB_SIZE as usize + 1,
8773 line_end_offset: TAB_SIZE as usize * 2,
8774 },
8775 Invisible::Tab {
8776 line_start_offset: TAB_SIZE as usize * 2 + 1,
8777 line_end_offset: TAB_SIZE as usize * 3,
8778 },
8779 Invisible::Whitespace {
8780 line_offset: TAB_SIZE as usize * 3 + 1,
8781 },
8782 Invisible::Whitespace {
8783 line_offset: TAB_SIZE as usize * 3 + 3,
8784 },
8785 ];
8786 assert_eq!(
8787 expected_invisibles.len(),
8788 input_text
8789 .chars()
8790 .filter(|initial_char| initial_char.is_whitespace())
8791 .count(),
8792 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8793 );
8794
8795 for show_line_numbers in [true, false] {
8796 init_test(cx, |s| {
8797 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8798 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8799 });
8800
8801 let actual_invisibles = collect_invisibles_from_new_editor(
8802 cx,
8803 EditorMode::full(),
8804 input_text,
8805 px(500.0),
8806 show_line_numbers,
8807 );
8808
8809 assert_eq!(expected_invisibles, actual_invisibles);
8810 }
8811 }
8812
8813 #[gpui::test]
8814 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8815 init_test(cx, |s| {
8816 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8817 s.defaults.tab_size = NonZeroU32::new(4);
8818 });
8819
8820 for editor_mode_without_invisibles in [
8821 EditorMode::SingleLine { auto_width: false },
8822 EditorMode::AutoHeight { max_lines: 100 },
8823 ] {
8824 for show_line_numbers in [true, false] {
8825 let invisibles = collect_invisibles_from_new_editor(
8826 cx,
8827 editor_mode_without_invisibles,
8828 "\t\t\t| | a b",
8829 px(500.0),
8830 show_line_numbers,
8831 );
8832 assert!(
8833 invisibles.is_empty(),
8834 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
8835 );
8836 }
8837 }
8838 }
8839
8840 #[gpui::test]
8841 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8842 let tab_size = 4;
8843 let input_text = "a\tbcd ".repeat(9);
8844 let repeated_invisibles = [
8845 Invisible::Tab {
8846 line_start_offset: 1,
8847 line_end_offset: tab_size as usize,
8848 },
8849 Invisible::Whitespace {
8850 line_offset: tab_size as usize + 3,
8851 },
8852 Invisible::Whitespace {
8853 line_offset: tab_size as usize + 4,
8854 },
8855 Invisible::Whitespace {
8856 line_offset: tab_size as usize + 5,
8857 },
8858 Invisible::Whitespace {
8859 line_offset: tab_size as usize + 6,
8860 },
8861 Invisible::Whitespace {
8862 line_offset: tab_size as usize + 7,
8863 },
8864 ];
8865 let expected_invisibles = std::iter::once(repeated_invisibles)
8866 .cycle()
8867 .take(9)
8868 .flatten()
8869 .collect::<Vec<_>>();
8870 assert_eq!(
8871 expected_invisibles.len(),
8872 input_text
8873 .chars()
8874 .filter(|initial_char| initial_char.is_whitespace())
8875 .count(),
8876 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8877 );
8878 info!("Expected invisibles: {expected_invisibles:?}");
8879
8880 init_test(cx, |_| {});
8881
8882 // Put the same string with repeating whitespace pattern into editors of various size,
8883 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8884 let resize_step = 10.0;
8885 let mut editor_width = 200.0;
8886 while editor_width <= 1000.0 {
8887 for show_line_numbers in [true, false] {
8888 update_test_language_settings(cx, |s| {
8889 s.defaults.tab_size = NonZeroU32::new(tab_size);
8890 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8891 s.defaults.preferred_line_length = Some(editor_width as u32);
8892 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8893 });
8894
8895 let actual_invisibles = collect_invisibles_from_new_editor(
8896 cx,
8897 EditorMode::full(),
8898 &input_text,
8899 px(editor_width),
8900 show_line_numbers,
8901 );
8902
8903 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8904 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8905 let mut i = 0;
8906 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8907 i = actual_index;
8908 match expected_invisibles.get(i) {
8909 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8910 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8911 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8912 _ => {
8913 panic!(
8914 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
8915 )
8916 }
8917 },
8918 None => {
8919 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8920 }
8921 }
8922 }
8923 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8924 assert!(
8925 missing_expected_invisibles.is_empty(),
8926 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8927 );
8928
8929 editor_width += resize_step;
8930 }
8931 }
8932 }
8933
8934 fn collect_invisibles_from_new_editor(
8935 cx: &mut TestAppContext,
8936 editor_mode: EditorMode,
8937 input_text: &str,
8938 editor_width: Pixels,
8939 show_line_numbers: bool,
8940 ) -> Vec<Invisible> {
8941 info!(
8942 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8943 editor_width.0
8944 );
8945 let window = cx.add_window(|window, cx| {
8946 let buffer = MultiBuffer::build_simple(input_text, cx);
8947 Editor::new(editor_mode, buffer, None, window, cx)
8948 });
8949 let cx = &mut VisualTestContext::from_window(*window, cx);
8950 let editor = window.root(cx).unwrap();
8951
8952 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8953 window
8954 .update(cx, |editor, _, cx| {
8955 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8956 editor.set_wrap_width(Some(editor_width), cx);
8957 editor.set_show_line_numbers(show_line_numbers, cx);
8958 })
8959 .unwrap();
8960 let (_, state) = cx.draw(
8961 point(px(500.), px(500.)),
8962 size(px(500.), px(500.)),
8963 |_, _| EditorElement::new(&editor, style),
8964 );
8965 state
8966 .position_map
8967 .line_layouts
8968 .iter()
8969 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8970 .cloned()
8971 .collect()
8972 }
8973}