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 register_action(editor, window, Editor::go_to_previous_change);
439 register_action(editor, window, Editor::go_to_next_change);
440
441 register_action(editor, window, |editor, action, window, cx| {
442 if let Some(task) = editor.format(action, window, cx) {
443 task.detach_and_notify_err(window, cx);
444 } else {
445 cx.propagate();
446 }
447 });
448 register_action(editor, window, |editor, action, window, cx| {
449 if let Some(task) = editor.format_selections(action, window, cx) {
450 task.detach_and_notify_err(window, cx);
451 } else {
452 cx.propagate();
453 }
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 if let Some(task) = editor.organize_imports(action, window, cx) {
457 task.detach_and_notify_err(window, cx);
458 } else {
459 cx.propagate();
460 }
461 });
462 register_action(editor, window, Editor::restart_language_server);
463 register_action(editor, window, Editor::stop_language_server);
464 register_action(editor, window, Editor::show_character_palette);
465 register_action(editor, window, |editor, action, window, cx| {
466 if let Some(task) = editor.confirm_completion(action, window, cx) {
467 task.detach_and_notify_err(window, cx);
468 } else {
469 cx.propagate();
470 }
471 });
472 register_action(editor, window, |editor, action, window, cx| {
473 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
474 task.detach_and_notify_err(window, cx);
475 } else {
476 cx.propagate();
477 }
478 });
479 register_action(editor, window, |editor, action, window, cx| {
480 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
481 task.detach_and_notify_err(window, cx);
482 } else {
483 cx.propagate();
484 }
485 });
486 register_action(editor, window, |editor, action, window, cx| {
487 if let Some(task) = editor.compose_completion(action, window, cx) {
488 task.detach_and_notify_err(window, cx);
489 } else {
490 cx.propagate();
491 }
492 });
493 register_action(editor, window, |editor, action, window, cx| {
494 if let Some(task) = editor.confirm_code_action(action, window, cx) {
495 task.detach_and_notify_err(window, cx);
496 } else {
497 cx.propagate();
498 }
499 });
500 register_action(editor, window, |editor, action, window, cx| {
501 if let Some(task) = editor.rename(action, window, cx) {
502 task.detach_and_notify_err(window, cx);
503 } else {
504 cx.propagate();
505 }
506 });
507 register_action(editor, window, |editor, action, window, cx| {
508 if let Some(task) = editor.confirm_rename(action, window, cx) {
509 task.detach_and_notify_err(window, cx);
510 } else {
511 cx.propagate();
512 }
513 });
514 register_action(editor, window, |editor, action, window, cx| {
515 if let Some(task) = editor.find_all_references(action, window, cx) {
516 task.detach_and_log_err(cx);
517 } else {
518 cx.propagate();
519 }
520 });
521 register_action(editor, window, Editor::show_signature_help);
522 register_action(editor, window, Editor::next_edit_prediction);
523 register_action(editor, window, Editor::previous_edit_prediction);
524 register_action(editor, window, Editor::show_inline_completion);
525 register_action(editor, window, Editor::context_menu_first);
526 register_action(editor, window, Editor::context_menu_prev);
527 register_action(editor, window, Editor::context_menu_next);
528 register_action(editor, window, Editor::context_menu_last);
529 register_action(editor, window, Editor::display_cursor_names);
530 register_action(editor, window, Editor::unique_lines_case_insensitive);
531 register_action(editor, window, Editor::unique_lines_case_sensitive);
532 register_action(editor, window, Editor::accept_partial_inline_completion);
533 register_action(editor, window, Editor::accept_edit_prediction);
534 register_action(editor, window, Editor::restore_file);
535 register_action(editor, window, Editor::git_restore);
536 register_action(editor, window, Editor::apply_all_diff_hunks);
537 register_action(editor, window, Editor::apply_selected_diff_hunks);
538 register_action(editor, window, Editor::open_active_item_in_terminal);
539 register_action(editor, window, Editor::reload_file);
540 register_action(editor, window, Editor::spawn_nearest_task);
541 register_action(editor, window, Editor::insert_uuid_v4);
542 register_action(editor, window, Editor::insert_uuid_v7);
543 register_action(editor, window, Editor::open_selections_in_multibuffer);
544 if cx.has_flag::<Debugger>() {
545 register_action(editor, window, Editor::toggle_breakpoint);
546 register_action(editor, window, Editor::edit_log_breakpoint);
547 register_action(editor, window, Editor::enable_breakpoint);
548 register_action(editor, window, Editor::disable_breakpoint);
549 }
550 }
551
552 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
553 let position_map = layout.position_map.clone();
554 window.on_key_event({
555 let editor = self.editor.clone();
556 move |event: &ModifiersChangedEvent, phase, window, cx| {
557 if phase != DispatchPhase::Bubble {
558 return;
559 }
560 editor.update(cx, |editor, cx| {
561 let inlay_hint_settings = inlay_hint_settings(
562 editor.selections.newest_anchor().head(),
563 &editor.buffer.read(cx).snapshot(cx),
564 cx,
565 );
566
567 if let Some(inlay_modifiers) = inlay_hint_settings
568 .toggle_on_modifiers_press
569 .as_ref()
570 .filter(|modifiers| modifiers.modified())
571 {
572 editor.refresh_inlay_hints(
573 InlayHintRefreshReason::ModifiersChanged(
574 inlay_modifiers == &event.modifiers,
575 ),
576 cx,
577 );
578 }
579
580 if editor.hover_state.focused(window, cx) {
581 return;
582 }
583
584 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
585 })
586 }
587 });
588 }
589
590 fn mouse_left_down(
591 editor: &mut Editor,
592 event: &MouseDownEvent,
593 hovered_hunk: Option<Range<Anchor>>,
594 position_map: &PositionMap,
595 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
596 window: &mut Window,
597 cx: &mut Context<Editor>,
598 ) {
599 if window.default_prevented() {
600 return;
601 }
602
603 let text_hitbox = &position_map.text_hitbox;
604 let gutter_hitbox = &position_map.gutter_hitbox;
605 let mut click_count = event.click_count;
606 let mut modifiers = event.modifiers;
607
608 if let Some(hovered_hunk) = hovered_hunk {
609 editor.toggle_single_diff_hunk(hovered_hunk, cx);
610 cx.notify();
611 return;
612 } else if gutter_hitbox.is_hovered(window) {
613 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
614 } else if !text_hitbox.is_hovered(window) {
615 return;
616 }
617
618 let is_singleton = editor.buffer().read(cx).is_singleton();
619
620 if click_count == 2 && !is_singleton {
621 match EditorSettings::get_global(cx).double_click_in_multibuffer {
622 DoubleClickInMultibuffer::Select => {
623 // do nothing special on double click, all selection logic is below
624 }
625 DoubleClickInMultibuffer::Open => {
626 if modifiers.alt {
627 // if double click is made with alt, pretend it's a regular double click without opening and alt,
628 // and run the selection logic.
629 modifiers.alt = false;
630 } else {
631 let scroll_position_row =
632 position_map.scroll_pixel_position.y / position_map.line_height;
633 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
634 + position_map.scroll_pixel_position.y)
635 / position_map.line_height)
636 as u32;
637 let multi_buffer_row = position_map
638 .snapshot
639 .display_point_to_point(
640 DisplayPoint::new(DisplayRow(display_row), 0),
641 Bias::Right,
642 )
643 .row;
644 let line_offset_from_top = display_row - scroll_position_row as u32;
645 // if double click is made without alt, open the corresponding excerp
646 editor.open_excerpts_common(
647 Some(JumpData::MultiBufferRow {
648 row: MultiBufferRow(multi_buffer_row),
649 line_offset_from_top,
650 }),
651 false,
652 window,
653 cx,
654 );
655 return;
656 }
657 }
658 }
659 }
660
661 let point_for_position = position_map.point_for_position(event.position);
662 let position = point_for_position.previous_valid;
663 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
664 editor.select(
665 SelectPhase::BeginColumnar {
666 position,
667 reset: false,
668 goal_column: point_for_position.exact_unclipped.column(),
669 },
670 window,
671 cx,
672 );
673 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
674 {
675 editor.select(
676 SelectPhase::Extend {
677 position,
678 click_count,
679 },
680 window,
681 cx,
682 );
683 } else {
684 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
685 let multi_cursor_modifier = match multi_cursor_setting {
686 MultiCursorModifier::Alt => modifiers.alt,
687 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
688 };
689 editor.select(
690 SelectPhase::Begin {
691 position,
692 add: multi_cursor_modifier,
693 click_count,
694 },
695 window,
696 cx,
697 );
698 }
699 cx.stop_propagation();
700
701 if !is_singleton {
702 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
703 + position_map.scroll_pixel_position.y)
704 / position_map.line_height) as u32;
705 let multi_buffer_row = position_map
706 .snapshot
707 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
708 .row;
709 if line_numbers
710 .get(&MultiBufferRow(multi_buffer_row))
711 .and_then(|line_number| line_number.hitbox.as_ref())
712 .is_some_and(|hitbox| hitbox.contains(&event.position))
713 {
714 let scroll_position_row =
715 position_map.scroll_pixel_position.y / position_map.line_height;
716 let line_offset_from_top = display_row - scroll_position_row as u32;
717
718 editor.open_excerpts_common(
719 Some(JumpData::MultiBufferRow {
720 row: MultiBufferRow(multi_buffer_row),
721 line_offset_from_top,
722 }),
723 modifiers.alt,
724 window,
725 cx,
726 );
727 cx.stop_propagation();
728 }
729 }
730 }
731
732 fn mouse_right_down(
733 editor: &mut Editor,
734 event: &MouseDownEvent,
735 position_map: &PositionMap,
736 window: &mut Window,
737 cx: &mut Context<Editor>,
738 ) {
739 if position_map.gutter_hitbox.is_hovered(window) {
740 let gutter_right_padding = editor.gutter_dimensions.right_padding;
741 let hitbox = &position_map.gutter_hitbox;
742
743 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
744 let point_for_position = position_map.point_for_position(event.position);
745 editor.set_breakpoint_context_menu(
746 point_for_position.previous_valid.row(),
747 None,
748 event.position,
749 window,
750 cx,
751 );
752 }
753 return;
754 }
755
756 if !position_map.text_hitbox.is_hovered(window) {
757 return;
758 }
759
760 let point_for_position = position_map.point_for_position(event.position);
761 mouse_context_menu::deploy_context_menu(
762 editor,
763 Some(event.position),
764 point_for_position.previous_valid,
765 window,
766 cx,
767 );
768 cx.stop_propagation();
769 }
770
771 fn mouse_middle_down(
772 editor: &mut Editor,
773 event: &MouseDownEvent,
774 position_map: &PositionMap,
775 window: &mut Window,
776 cx: &mut Context<Editor>,
777 ) {
778 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
779 return;
780 }
781
782 let point_for_position = position_map.point_for_position(event.position);
783 let position = point_for_position.previous_valid;
784
785 editor.select(
786 SelectPhase::BeginColumnar {
787 position,
788 reset: true,
789 goal_column: point_for_position.exact_unclipped.column(),
790 },
791 window,
792 cx,
793 );
794 }
795
796 fn mouse_up(
797 editor: &mut Editor,
798 event: &MouseUpEvent,
799 position_map: &PositionMap,
800 window: &mut Window,
801 cx: &mut Context<Editor>,
802 ) {
803 let text_hitbox = &position_map.text_hitbox;
804 let end_selection = editor.has_pending_selection();
805 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
806
807 if end_selection {
808 editor.select(SelectPhase::End, window, cx);
809 }
810
811 if end_selection && pending_nonempty_selections {
812 cx.stop_propagation();
813 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
814 && event.button == MouseButton::Middle
815 {
816 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
817 return;
818 }
819
820 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
821 if EditorSettings::get_global(cx).middle_click_paste {
822 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
823 let point_for_position = position_map.point_for_position(event.position);
824 let position = point_for_position.previous_valid;
825
826 editor.select(
827 SelectPhase::Begin {
828 position,
829 add: false,
830 click_count: 1,
831 },
832 window,
833 cx,
834 );
835 editor.insert(&text, window, cx);
836 }
837 cx.stop_propagation()
838 }
839 }
840 }
841
842 fn click(
843 editor: &mut Editor,
844 event: &ClickEvent,
845 position_map: &PositionMap,
846 window: &mut Window,
847 cx: &mut Context<Editor>,
848 ) {
849 let text_hitbox = &position_map.text_hitbox;
850 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
851
852 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
853 let multi_cursor_modifier = match multi_cursor_setting {
854 MultiCursorModifier::Alt => event.modifiers().secondary(),
855 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
856 };
857
858 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
859 let point = position_map.point_for_position(event.up.position);
860 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
861
862 cx.stop_propagation();
863 }
864 }
865
866 fn mouse_dragged(
867 editor: &mut Editor,
868 event: &MouseMoveEvent,
869 position_map: &PositionMap,
870 window: &mut Window,
871 cx: &mut Context<Editor>,
872 ) {
873 if !editor.has_pending_selection() {
874 return;
875 }
876
877 let text_bounds = position_map.text_hitbox.bounds;
878 let point_for_position = position_map.point_for_position(event.position);
879 let mut scroll_delta = gpui::Point::<f32>::default();
880 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
881 let top = text_bounds.origin.y + vertical_margin;
882 let bottom = text_bounds.bottom_left().y - vertical_margin;
883 if event.position.y < top {
884 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
885 }
886 if event.position.y > bottom {
887 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
888 }
889
890 // We need horizontal width of text
891 let style = editor.style.clone().unwrap_or_default();
892 let font_id = window.text_system().resolve_font(&style.text.font());
893 let font_size = style.text.font_size.to_pixels(window.rem_size());
894 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
895
896 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
897
898 let scroll_space: Pixels = scroll_margin_x * em_width;
899
900 let left = text_bounds.origin.x + scroll_space;
901 let right = text_bounds.top_right().x - scroll_space;
902
903 if event.position.x < left {
904 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
905 }
906 if event.position.x > right {
907 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
908 }
909
910 editor.select(
911 SelectPhase::Update {
912 position: point_for_position.previous_valid,
913 goal_column: point_for_position.exact_unclipped.column(),
914 scroll_delta,
915 },
916 window,
917 cx,
918 );
919 }
920
921 fn mouse_moved(
922 editor: &mut Editor,
923 event: &MouseMoveEvent,
924 position_map: &PositionMap,
925 window: &mut Window,
926 cx: &mut Context<Editor>,
927 ) {
928 let text_hitbox = &position_map.text_hitbox;
929 let gutter_hitbox = &position_map.gutter_hitbox;
930 let modifiers = event.modifiers;
931 let gutter_hovered = gutter_hitbox.is_hovered(window);
932 editor.set_gutter_hovered(gutter_hovered, cx);
933 editor.mouse_cursor_hidden = false;
934
935 if gutter_hovered {
936 let new_point = position_map
937 .point_for_position(event.position)
938 .previous_valid;
939 let buffer_anchor = position_map
940 .snapshot
941 .display_point_to_anchor(new_point, Bias::Left);
942
943 if position_map
944 .snapshot
945 .buffer_snapshot
946 .buffer_for_excerpt(buffer_anchor.excerpt_id)
947 .is_some_and(|buffer| buffer.file().is_some())
948 {
949 let was_hovered = editor.gutter_breakpoint_indicator.0.is_some();
950 let is_visible = editor
951 .gutter_breakpoint_indicator
952 .0
953 .map_or(false, |(_, is_active)| is_active);
954 editor.gutter_breakpoint_indicator.0 = Some((new_point, is_visible));
955
956 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
957 cx.spawn(async move |this, cx| {
958 if !was_hovered {
959 cx.background_executor()
960 .timer(Duration::from_millis(200))
961 .await;
962 }
963
964 this.update(cx, |this, cx| {
965 if let Some((_, is_active)) =
966 this.gutter_breakpoint_indicator.0.as_mut()
967 {
968 *is_active = true;
969 }
970
971 cx.notify();
972 })
973 .ok();
974 })
975 });
976 } else {
977 editor.gutter_breakpoint_indicator = (None, None);
978 }
979 } else {
980 editor.gutter_breakpoint_indicator = (None, None);
981 }
982
983 cx.notify();
984
985 // Don't trigger hover popover if mouse is hovering over context menu
986 if text_hitbox.is_hovered(window) {
987 let point_for_position = position_map.point_for_position(event.position);
988
989 editor.update_hovered_link(
990 point_for_position,
991 &position_map.snapshot,
992 modifiers,
993 window,
994 cx,
995 );
996
997 if let Some(point) = point_for_position.as_valid() {
998 let anchor = position_map
999 .snapshot
1000 .buffer_snapshot
1001 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1002 hover_at(editor, Some(anchor), window, cx);
1003 Self::update_visible_cursor(editor, point, position_map, window, cx);
1004 } else {
1005 hover_at(editor, None, window, cx);
1006 }
1007 } else {
1008 editor.hide_hovered_link(cx);
1009 hover_at(editor, None, window, cx);
1010 if gutter_hovered {
1011 cx.stop_propagation();
1012 }
1013 }
1014 }
1015
1016 fn update_visible_cursor(
1017 editor: &mut Editor,
1018 point: DisplayPoint,
1019 position_map: &PositionMap,
1020 window: &mut Window,
1021 cx: &mut Context<Editor>,
1022 ) {
1023 let snapshot = &position_map.snapshot;
1024 let Some(hub) = editor.collaboration_hub() else {
1025 return;
1026 };
1027 let start = snapshot.display_snapshot.clip_point(
1028 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1029 Bias::Left,
1030 );
1031 let end = snapshot.display_snapshot.clip_point(
1032 DisplayPoint::new(
1033 point.row(),
1034 (point.column() + 1).min(snapshot.line_len(point.row())),
1035 ),
1036 Bias::Right,
1037 );
1038
1039 let range = snapshot
1040 .buffer_snapshot
1041 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1042 ..snapshot
1043 .buffer_snapshot
1044 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1045
1046 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1047 return;
1048 };
1049 let key = crate::HoveredCursor {
1050 replica_id: selection.replica_id,
1051 selection_id: selection.selection.id,
1052 };
1053 editor.hovered_cursors.insert(
1054 key.clone(),
1055 cx.spawn_in(window, async move |editor, cx| {
1056 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1057 editor
1058 .update(cx, |editor, cx| {
1059 editor.hovered_cursors.remove(&key);
1060 cx.notify();
1061 })
1062 .ok();
1063 }),
1064 );
1065 cx.notify()
1066 }
1067
1068 fn layout_selections(
1069 &self,
1070 start_anchor: Anchor,
1071 end_anchor: Anchor,
1072 local_selections: &[Selection<Point>],
1073 snapshot: &EditorSnapshot,
1074 start_row: DisplayRow,
1075 end_row: DisplayRow,
1076 window: &mut Window,
1077 cx: &mut App,
1078 ) -> (
1079 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1080 BTreeMap<DisplayRow, LineHighlightSpec>,
1081 Option<DisplayPoint>,
1082 ) {
1083 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1084 let mut active_rows = BTreeMap::new();
1085 let mut newest_selection_head = None;
1086 self.editor.update(cx, |editor, cx| {
1087 if editor.show_local_selections {
1088 let mut layouts = Vec::new();
1089 let newest = editor.selections.newest(cx);
1090 for selection in local_selections.iter().cloned() {
1091 let is_empty = selection.start == selection.end;
1092 let is_newest = selection == newest;
1093
1094 let layout = SelectionLayout::new(
1095 selection,
1096 editor.selections.line_mode,
1097 editor.cursor_shape,
1098 &snapshot.display_snapshot,
1099 is_newest,
1100 editor.leader_peer_id.is_none(),
1101 None,
1102 );
1103 if is_newest {
1104 newest_selection_head = Some(layout.head);
1105 }
1106
1107 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1108 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1109 {
1110 let contains_non_empty_selection = active_rows
1111 .entry(DisplayRow(row))
1112 .or_insert_with(LineHighlightSpec::default);
1113 contains_non_empty_selection.selection |= !is_empty;
1114 }
1115 layouts.push(layout);
1116 }
1117
1118 let player = editor.current_user_player_color(cx);
1119 selections.push((player, layouts));
1120 }
1121
1122 if let Some(collaboration_hub) = &editor.collaboration_hub {
1123 // When following someone, render the local selections in their color.
1124 if let Some(leader_id) = editor.leader_peer_id {
1125 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1126 {
1127 if let Some(participant_index) = collaboration_hub
1128 .user_participant_indices(cx)
1129 .get(&collaborator.user_id)
1130 {
1131 if let Some((local_selection_style, _)) = selections.first_mut() {
1132 *local_selection_style = cx
1133 .theme()
1134 .players()
1135 .color_for_participant(participant_index.0);
1136 }
1137 }
1138 }
1139 }
1140
1141 let mut remote_selections = HashMap::default();
1142 for selection in snapshot.remote_selections_in_range(
1143 &(start_anchor..end_anchor),
1144 collaboration_hub.as_ref(),
1145 cx,
1146 ) {
1147 let selection_style =
1148 Self::get_participant_color(selection.participant_index, cx);
1149
1150 // Don't re-render the leader's selections, since the local selections
1151 // match theirs.
1152 if Some(selection.peer_id) == editor.leader_peer_id {
1153 continue;
1154 }
1155 let key = HoveredCursor {
1156 replica_id: selection.replica_id,
1157 selection_id: selection.selection.id,
1158 };
1159
1160 let is_shown =
1161 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1162
1163 remote_selections
1164 .entry(selection.replica_id)
1165 .or_insert((selection_style, Vec::new()))
1166 .1
1167 .push(SelectionLayout::new(
1168 selection.selection,
1169 selection.line_mode,
1170 selection.cursor_shape,
1171 &snapshot.display_snapshot,
1172 false,
1173 false,
1174 if is_shown { selection.user_name } else { None },
1175 ));
1176 }
1177
1178 selections.extend(remote_selections.into_values());
1179 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1180 let layouts = snapshot
1181 .buffer_snapshot
1182 .selections_in_range(&(start_anchor..end_anchor), true)
1183 .map(move |(_, line_mode, cursor_shape, selection)| {
1184 SelectionLayout::new(
1185 selection,
1186 line_mode,
1187 cursor_shape,
1188 &snapshot.display_snapshot,
1189 false,
1190 false,
1191 None,
1192 )
1193 })
1194 .collect::<Vec<_>>();
1195 let player = editor.current_user_player_color(cx);
1196 selections.push((player, layouts));
1197 }
1198 });
1199 (selections, active_rows, newest_selection_head)
1200 }
1201
1202 fn collect_cursors(
1203 &self,
1204 snapshot: &EditorSnapshot,
1205 cx: &mut App,
1206 ) -> Vec<(DisplayPoint, Hsla)> {
1207 let editor = self.editor.read(cx);
1208 let mut cursors = Vec::new();
1209 let mut skip_local = false;
1210 let mut add_cursor = |anchor: Anchor, color| {
1211 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1212 };
1213 // Remote cursors
1214 if let Some(collaboration_hub) = &editor.collaboration_hub {
1215 for remote_selection in snapshot.remote_selections_in_range(
1216 &(Anchor::min()..Anchor::max()),
1217 collaboration_hub.deref(),
1218 cx,
1219 ) {
1220 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1221 add_cursor(remote_selection.selection.head(), color.cursor);
1222 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1223 skip_local = true;
1224 }
1225 }
1226 }
1227 // Local cursors
1228 if !skip_local {
1229 let color = cx.theme().players().local().cursor;
1230 editor.selections.disjoint.iter().for_each(|selection| {
1231 add_cursor(selection.head(), color);
1232 });
1233 if let Some(ref selection) = editor.selections.pending_anchor() {
1234 add_cursor(selection.head(), color);
1235 }
1236 }
1237 cursors
1238 }
1239
1240 fn layout_visible_cursors(
1241 &self,
1242 snapshot: &EditorSnapshot,
1243 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1244 row_block_types: &HashMap<DisplayRow, bool>,
1245 visible_display_row_range: Range<DisplayRow>,
1246 line_layouts: &[LineWithInvisibles],
1247 text_hitbox: &Hitbox,
1248 content_origin: gpui::Point<Pixels>,
1249 scroll_position: gpui::Point<f32>,
1250 scroll_pixel_position: gpui::Point<Pixels>,
1251 line_height: Pixels,
1252 em_width: Pixels,
1253 em_advance: Pixels,
1254 autoscroll_containing_element: bool,
1255 window: &mut Window,
1256 cx: &mut App,
1257 ) -> Vec<CursorLayout> {
1258 let mut autoscroll_bounds = None;
1259 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1260 let mut cursors = Vec::new();
1261
1262 let show_local_cursors = editor.show_local_cursors(window, cx);
1263
1264 for (player_color, selections) in selections {
1265 for selection in selections {
1266 let cursor_position = selection.head;
1267
1268 let in_range = visible_display_row_range.contains(&cursor_position.row());
1269 if (selection.is_local && !show_local_cursors)
1270 || !in_range
1271 || row_block_types.get(&cursor_position.row()) == Some(&true)
1272 {
1273 continue;
1274 }
1275
1276 let cursor_row_layout = &line_layouts
1277 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1278 let cursor_column = cursor_position.column() as usize;
1279
1280 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1281 let mut block_width =
1282 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1283 if block_width == Pixels::ZERO {
1284 block_width = em_advance;
1285 }
1286 let block_text = if let CursorShape::Block = selection.cursor_shape {
1287 snapshot
1288 .grapheme_at(cursor_position)
1289 .or_else(|| {
1290 if cursor_column == 0 {
1291 snapshot.placeholder_text().and_then(|s| {
1292 s.graphemes(true).next().map(|s| s.to_string().into())
1293 })
1294 } else {
1295 None
1296 }
1297 })
1298 .and_then(|text| {
1299 let len = text.len();
1300
1301 let font = cursor_row_layout
1302 .font_id_for_index(cursor_column)
1303 .and_then(|cursor_font_id| {
1304 window.text_system().get_font_for_id(cursor_font_id)
1305 })
1306 .unwrap_or(self.style.text.font());
1307
1308 // Invert the text color for the block cursor. Ensure that the text
1309 // color is opaque enough to be visible against the background color.
1310 //
1311 // 0.75 is an arbitrary threshold to determine if the background color is
1312 // opaque enough to use as a text color.
1313 //
1314 // TODO: In the future we should ensure themes have a `text_inverse` color.
1315 let color = if cx.theme().colors().editor_background.a < 0.75 {
1316 match cx.theme().appearance {
1317 Appearance::Dark => Hsla::black(),
1318 Appearance::Light => Hsla::white(),
1319 }
1320 } else {
1321 cx.theme().colors().editor_background
1322 };
1323
1324 window
1325 .text_system()
1326 .shape_line(
1327 text,
1328 cursor_row_layout.font_size,
1329 &[TextRun {
1330 len,
1331 font,
1332 color,
1333 background_color: None,
1334 strikethrough: None,
1335 underline: None,
1336 }],
1337 )
1338 .log_err()
1339 })
1340 } else {
1341 None
1342 };
1343
1344 let x = cursor_character_x - scroll_pixel_position.x;
1345 let y = (cursor_position.row().as_f32()
1346 - scroll_pixel_position.y / line_height)
1347 * line_height;
1348 if selection.is_newest {
1349 editor.pixel_position_of_newest_cursor = Some(point(
1350 text_hitbox.origin.x + x + block_width / 2.,
1351 text_hitbox.origin.y + y + line_height / 2.,
1352 ));
1353
1354 if autoscroll_containing_element {
1355 let top = text_hitbox.origin.y
1356 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1357 * line_height;
1358 let left = text_hitbox.origin.x
1359 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1360 .max(0.)
1361 * em_width;
1362
1363 let bottom = text_hitbox.origin.y
1364 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1365 * line_height;
1366 let right = text_hitbox.origin.x
1367 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1368 * em_width;
1369
1370 autoscroll_bounds =
1371 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1372 }
1373 }
1374
1375 let mut cursor = CursorLayout {
1376 color: player_color.cursor,
1377 block_width,
1378 origin: point(x, y),
1379 line_height,
1380 shape: selection.cursor_shape,
1381 block_text,
1382 cursor_name: None,
1383 };
1384 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1385 string: name,
1386 color: self.style.background,
1387 is_top_row: cursor_position.row().0 == 0,
1388 });
1389 cursor.layout(content_origin, cursor_name, window, cx);
1390 cursors.push(cursor);
1391 }
1392 }
1393
1394 cursors
1395 });
1396
1397 if let Some(bounds) = autoscroll_bounds {
1398 window.request_autoscroll(bounds);
1399 }
1400
1401 cursor_layouts
1402 }
1403
1404 fn layout_scrollbars(
1405 &self,
1406 snapshot: &EditorSnapshot,
1407 scrollbar_layout_information: ScrollbarLayoutInformation,
1408 content_offset: gpui::Point<Pixels>,
1409 scroll_position: gpui::Point<f32>,
1410 non_visible_cursors: bool,
1411 window: &mut Window,
1412 cx: &mut App,
1413 ) -> Option<EditorScrollbars> {
1414 if !snapshot.mode.is_full() {
1415 return None;
1416 }
1417
1418 // If a drag took place after we started dragging the scrollbar,
1419 // cancel the scrollbar drag.
1420 if cx.has_active_drag() {
1421 self.editor.update(cx, |editor, cx| {
1422 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1423 });
1424 }
1425
1426 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1427 let show_scrollbars = self.editor.read(cx).show_scrollbars
1428 && match scrollbar_settings.show {
1429 ShowScrollbar::Auto => {
1430 let editor = self.editor.read(cx);
1431 let is_singleton = editor.is_singleton(cx);
1432 // Git
1433 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1434 ||
1435 // Buffer Search Results
1436 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1437 ||
1438 // Selected Text Occurrences
1439 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1440 ||
1441 // Selected Symbol Occurrences
1442 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1443 ||
1444 // Diagnostics
1445 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1446 ||
1447 // Cursors out of sight
1448 non_visible_cursors
1449 ||
1450 // Scrollmanager
1451 editor.scroll_manager.scrollbars_visible()
1452 }
1453 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1454 ShowScrollbar::Always => true,
1455 ShowScrollbar::Never => return None,
1456 };
1457
1458 Some(EditorScrollbars::from_scrollbar_axes(
1459 scrollbar_settings.axes,
1460 &scrollbar_layout_information,
1461 content_offset,
1462 scroll_position,
1463 self.style.scrollbar_width,
1464 show_scrollbars,
1465 window,
1466 ))
1467 }
1468
1469 fn prepaint_crease_toggles(
1470 &self,
1471 crease_toggles: &mut [Option<AnyElement>],
1472 line_height: Pixels,
1473 gutter_dimensions: &GutterDimensions,
1474 gutter_settings: crate::editor_settings::Gutter,
1475 scroll_pixel_position: gpui::Point<Pixels>,
1476 gutter_hitbox: &Hitbox,
1477 window: &mut Window,
1478 cx: &mut App,
1479 ) {
1480 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1481 if let Some(crease_toggle) = crease_toggle {
1482 debug_assert!(gutter_settings.folds);
1483 let available_space = size(
1484 AvailableSpace::MinContent,
1485 AvailableSpace::Definite(line_height * 0.55),
1486 );
1487 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1488
1489 let position = point(
1490 gutter_dimensions.width - gutter_dimensions.right_padding,
1491 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1492 );
1493 let centering_offset = point(
1494 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1495 (line_height - crease_toggle_size.height) / 2.,
1496 );
1497 let origin = gutter_hitbox.origin + position + centering_offset;
1498 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1499 }
1500 }
1501 }
1502
1503 fn prepaint_expand_toggles(
1504 &self,
1505 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1506 window: &mut Window,
1507 cx: &mut App,
1508 ) {
1509 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1510 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1511 expand_toggle.layout_as_root(available_space, window, cx);
1512 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1513 }
1514 }
1515
1516 fn prepaint_crease_trailers(
1517 &self,
1518 trailers: Vec<Option<AnyElement>>,
1519 lines: &[LineWithInvisibles],
1520 line_height: Pixels,
1521 content_origin: gpui::Point<Pixels>,
1522 scroll_pixel_position: gpui::Point<Pixels>,
1523 em_width: Pixels,
1524 window: &mut Window,
1525 cx: &mut App,
1526 ) -> Vec<Option<CreaseTrailerLayout>> {
1527 trailers
1528 .into_iter()
1529 .enumerate()
1530 .map(|(ix, element)| {
1531 let mut element = element?;
1532 let available_space = size(
1533 AvailableSpace::MinContent,
1534 AvailableSpace::Definite(line_height),
1535 );
1536 let size = element.layout_as_root(available_space, window, cx);
1537
1538 let line = &lines[ix];
1539 let padding = if line.width == Pixels::ZERO {
1540 Pixels::ZERO
1541 } else {
1542 4. * em_width
1543 };
1544 let position = point(
1545 scroll_pixel_position.x + line.width + padding,
1546 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1547 );
1548 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1549 let origin = content_origin + position + centering_offset;
1550 element.prepaint_as_root(origin, available_space, window, cx);
1551 Some(CreaseTrailerLayout {
1552 element,
1553 bounds: Bounds::new(origin, size),
1554 })
1555 })
1556 .collect()
1557 }
1558
1559 // Folds contained in a hunk are ignored apart from shrinking visual size
1560 // If a fold contains any hunks then that fold line is marked as modified
1561 fn layout_gutter_diff_hunks(
1562 &self,
1563 line_height: Pixels,
1564 gutter_hitbox: &Hitbox,
1565 display_rows: Range<DisplayRow>,
1566 snapshot: &EditorSnapshot,
1567 window: &mut Window,
1568 cx: &mut App,
1569 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1570 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1571 let mut display_hunks = snapshot
1572 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1573 .map(|hunk| (hunk, None))
1574 .collect::<Vec<_>>();
1575 let git_gutter_setting = ProjectSettings::get_global(cx)
1576 .git
1577 .git_gutter
1578 .unwrap_or_default();
1579 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1580 for (hunk, hitbox) in &mut display_hunks {
1581 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1582 let hunk_bounds =
1583 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1584 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1585 }
1586 }
1587 }
1588
1589 display_hunks
1590 }
1591
1592 fn layout_inline_diagnostics(
1593 &self,
1594 line_layouts: &[LineWithInvisibles],
1595 crease_trailers: &[Option<CreaseTrailerLayout>],
1596 row_block_types: &HashMap<DisplayRow, bool>,
1597 content_origin: gpui::Point<Pixels>,
1598 scroll_pixel_position: gpui::Point<Pixels>,
1599 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1600 start_row: DisplayRow,
1601 end_row: DisplayRow,
1602 line_height: Pixels,
1603 em_width: Pixels,
1604 style: &EditorStyle,
1605 window: &mut Window,
1606 cx: &mut App,
1607 ) -> HashMap<DisplayRow, AnyElement> {
1608 let max_severity = ProjectSettings::get_global(cx)
1609 .diagnostics
1610 .inline
1611 .max_severity
1612 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1613 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1614 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1615 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1616 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1617 });
1618
1619 let active_diagnostics_group =
1620 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
1621 Some(group.group_id)
1622 } else {
1623 None
1624 };
1625
1626 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1627 let snapshot = editor.snapshot(window, cx);
1628 editor
1629 .inline_diagnostics
1630 .iter()
1631 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1632 .filter(|(_, diagnostic)| match active_diagnostics_group {
1633 Some(active_diagnostics_group) => {
1634 // Active diagnostics are all shown in the editor already, no need to display them inline
1635 diagnostic.group_id != active_diagnostics_group
1636 }
1637 None => true,
1638 })
1639 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1640 .skip_while(|(point, _)| point.row() < start_row)
1641 .take_while(|(point, _)| point.row() < end_row)
1642 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
1643 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1644 acc.entry(point.row())
1645 .or_insert_with(Vec::new)
1646 .push(diagnostic);
1647 acc
1648 })
1649 });
1650
1651 if diagnostics_by_rows.is_empty() {
1652 return HashMap::default();
1653 }
1654
1655 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1656 &DiagnosticSeverity::ERROR => Color::Error,
1657 &DiagnosticSeverity::WARNING => Color::Warning,
1658 &DiagnosticSeverity::INFORMATION => Color::Info,
1659 &DiagnosticSeverity::HINT => Color::Hint,
1660 _ => Color::Error,
1661 };
1662
1663 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1664 let min_x = ProjectSettings::get_global(cx)
1665 .diagnostics
1666 .inline
1667 .min_column as f32
1668 * em_width;
1669
1670 let mut elements = HashMap::default();
1671 for (row, mut diagnostics) in diagnostics_by_rows {
1672 diagnostics.sort_by_key(|diagnostic| {
1673 (
1674 diagnostic.severity,
1675 std::cmp::Reverse(diagnostic.is_primary),
1676 diagnostic.start.row,
1677 diagnostic.start.column,
1678 )
1679 });
1680
1681 let Some(diagnostic_to_render) = diagnostics
1682 .iter()
1683 .find(|diagnostic| diagnostic.is_primary)
1684 .or_else(|| diagnostics.first())
1685 else {
1686 continue;
1687 };
1688
1689 let pos_y = content_origin.y
1690 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1691
1692 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1693 let pos_x = {
1694 let crease_trailer_layout = &crease_trailers[window_ix];
1695 let line_layout = &line_layouts[window_ix];
1696
1697 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1698 crease_trailer.bounds.right()
1699 } else {
1700 content_origin.x - scroll_pixel_position.x + line_layout.width
1701 };
1702
1703 let padded_line = line_end + padding;
1704 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1705
1706 cmp::max(padded_line, min_start)
1707 };
1708
1709 let behind_inline_completion_popover = inline_completion_popover_origin
1710 .as_ref()
1711 .map_or(false, |inline_completion_popover_origin| {
1712 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1713 });
1714 let opacity = if behind_inline_completion_popover {
1715 0.5
1716 } else {
1717 1.0
1718 };
1719
1720 let mut element = h_flex()
1721 .id(("diagnostic", row.0))
1722 .h(line_height)
1723 .w_full()
1724 .px_1()
1725 .rounded_xs()
1726 .opacity(opacity)
1727 .bg(severity_to_color(&diagnostic_to_render.severity)
1728 .color(cx)
1729 .opacity(0.05))
1730 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1731 .text_sm()
1732 .font_family(style.text.font().family)
1733 .child(diagnostic_to_render.message.clone())
1734 .into_any();
1735
1736 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1737
1738 elements.insert(row, element);
1739 }
1740
1741 elements
1742 }
1743
1744 fn layout_inline_blame(
1745 &self,
1746 display_row: DisplayRow,
1747 row_info: &RowInfo,
1748 line_layout: &LineWithInvisibles,
1749 crease_trailer: Option<&CreaseTrailerLayout>,
1750 em_width: Pixels,
1751 content_origin: gpui::Point<Pixels>,
1752 scroll_pixel_position: gpui::Point<Pixels>,
1753 line_height: Pixels,
1754 window: &mut Window,
1755 cx: &mut App,
1756 ) -> Option<AnyElement> {
1757 if !self
1758 .editor
1759 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1760 {
1761 return None;
1762 }
1763
1764 let editor = self.editor.read(cx);
1765 let blame = editor.blame.clone()?;
1766 let padding = {
1767 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1768 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1769
1770 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1771
1772 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1773 match &inline_completion.completion {
1774 InlineCompletion::Edit {
1775 display_mode: EditDisplayMode::TabAccept,
1776 ..
1777 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1778 _ => {}
1779 }
1780 }
1781
1782 padding * em_width
1783 };
1784
1785 let workspace = editor.workspace()?.downgrade();
1786 let blame_entry = blame
1787 .update(cx, |blame, cx| {
1788 blame.blame_for_rows(&[*row_info], cx).next()
1789 })
1790 .flatten()?;
1791
1792 let mut element = render_inline_blame_entry(
1793 self.editor.clone(),
1794 workspace,
1795 &blame,
1796 blame_entry,
1797 &self.style,
1798 cx,
1799 )?;
1800
1801 let start_y = content_origin.y
1802 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1803
1804 let start_x = {
1805 let line_end = if let Some(crease_trailer) = crease_trailer {
1806 crease_trailer.bounds.right()
1807 } else {
1808 content_origin.x - scroll_pixel_position.x + line_layout.width
1809 };
1810
1811 let padded_line_end = line_end + padding;
1812
1813 let min_column_in_pixels = ProjectSettings::get_global(cx)
1814 .git
1815 .inline_blame
1816 .and_then(|settings| settings.min_column)
1817 .map(|col| self.column_pixels(col as usize, window, cx))
1818 .unwrap_or(px(0.));
1819 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1820
1821 cmp::max(padded_line_end, min_start)
1822 };
1823
1824 let absolute_offset = point(start_x, start_y);
1825 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1826
1827 Some(element)
1828 }
1829
1830 fn layout_blame_entries(
1831 &self,
1832 buffer_rows: &[RowInfo],
1833 em_width: Pixels,
1834 scroll_position: gpui::Point<f32>,
1835 line_height: Pixels,
1836 gutter_hitbox: &Hitbox,
1837 max_width: Option<Pixels>,
1838 window: &mut Window,
1839 cx: &mut App,
1840 ) -> Option<Vec<AnyElement>> {
1841 if !self
1842 .editor
1843 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1844 {
1845 return None;
1846 }
1847
1848 let blame = self.editor.read(cx).blame.clone()?;
1849 let workspace = self.editor.read(cx).workspace()?;
1850 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1851 blame.blame_for_rows(buffer_rows, cx).collect()
1852 });
1853
1854 let width = if let Some(max_width) = max_width {
1855 AvailableSpace::Definite(max_width)
1856 } else {
1857 AvailableSpace::MaxContent
1858 };
1859 let scroll_top = scroll_position.y * line_height;
1860 let start_x = em_width;
1861
1862 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1863 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
1864
1865 let shaped_lines = blamed_rows
1866 .into_iter()
1867 .enumerate()
1868 .flat_map(|(ix, blame_entry)| {
1869 let mut element = render_blame_entry(
1870 ix,
1871 &blame,
1872 blame_entry?,
1873 &self.style,
1874 &mut last_used_color,
1875 self.editor.clone(),
1876 workspace.clone(),
1877 blame_renderer.clone(),
1878 cx,
1879 )?;
1880
1881 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1882 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1883
1884 element.prepaint_as_root(
1885 absolute_offset,
1886 size(width, AvailableSpace::MinContent),
1887 window,
1888 cx,
1889 );
1890
1891 Some(element)
1892 })
1893 .collect();
1894
1895 Some(shaped_lines)
1896 }
1897
1898 fn layout_indent_guides(
1899 &self,
1900 content_origin: gpui::Point<Pixels>,
1901 text_origin: gpui::Point<Pixels>,
1902 visible_buffer_range: Range<MultiBufferRow>,
1903 scroll_pixel_position: gpui::Point<Pixels>,
1904 line_height: Pixels,
1905 snapshot: &DisplaySnapshot,
1906 window: &mut Window,
1907 cx: &mut App,
1908 ) -> Option<Vec<IndentGuideLayout>> {
1909 let indent_guides = self.editor.update(cx, |editor, cx| {
1910 editor.indent_guides(visible_buffer_range, snapshot, cx)
1911 })?;
1912
1913 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1914 editor
1915 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1916 .unwrap_or_default()
1917 });
1918
1919 Some(
1920 indent_guides
1921 .into_iter()
1922 .enumerate()
1923 .filter_map(|(i, indent_guide)| {
1924 let single_indent_width =
1925 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1926 let total_width = single_indent_width * indent_guide.depth as f32;
1927 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1928 if start_x >= text_origin.x {
1929 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1930 indent_guide.start_row..indent_guide.end_row,
1931 line_height,
1932 snapshot,
1933 );
1934
1935 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1936
1937 Some(IndentGuideLayout {
1938 origin: point(start_x, start_y),
1939 length,
1940 single_indent_width,
1941 depth: indent_guide.depth,
1942 active: active_indent_guide_indices.contains(&i),
1943 settings: indent_guide.settings,
1944 })
1945 } else {
1946 None
1947 }
1948 })
1949 .collect(),
1950 )
1951 }
1952
1953 fn calculate_indent_guide_bounds(
1954 row_range: Range<MultiBufferRow>,
1955 line_height: Pixels,
1956 snapshot: &DisplaySnapshot,
1957 ) -> (gpui::Pixels, gpui::Pixels) {
1958 let start_point = Point::new(row_range.start.0, 0);
1959 let end_point = Point::new(row_range.end.0, 0);
1960
1961 let row_range = start_point.to_display_point(snapshot).row()
1962 ..end_point.to_display_point(snapshot).row();
1963
1964 let mut prev_line = start_point;
1965 prev_line.row = prev_line.row.saturating_sub(1);
1966 let prev_line = prev_line.to_display_point(snapshot).row();
1967
1968 let mut cons_line = end_point;
1969 cons_line.row += 1;
1970 let cons_line = cons_line.to_display_point(snapshot).row();
1971
1972 let mut offset_y = row_range.start.0 as f32 * line_height;
1973 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1974
1975 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1976 if row_range.end == cons_line {
1977 length += line_height;
1978 }
1979
1980 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1981 // we want to extend the indent guide to the start of the block.
1982 let mut block_height = 0;
1983 let mut block_offset = 0;
1984 let mut found_excerpt_header = false;
1985 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1986 if matches!(block, Block::ExcerptBoundary { .. }) {
1987 found_excerpt_header = true;
1988 break;
1989 }
1990 block_offset += block.height();
1991 block_height += block.height();
1992 }
1993 if !found_excerpt_header {
1994 offset_y -= block_offset as f32 * line_height;
1995 length += block_height as f32 * line_height;
1996 }
1997
1998 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1999 // we want to ensure that the indent guide stops before the excerpt header.
2000 let mut block_height = 0;
2001 let mut found_excerpt_header = false;
2002 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2003 if matches!(block, Block::ExcerptBoundary { .. }) {
2004 found_excerpt_header = true;
2005 }
2006 block_height += block.height();
2007 }
2008 if found_excerpt_header {
2009 length -= block_height as f32 * line_height;
2010 }
2011
2012 (offset_y, length)
2013 }
2014
2015 fn layout_breakpoints(
2016 &self,
2017 line_height: Pixels,
2018 range: Range<DisplayRow>,
2019 scroll_pixel_position: gpui::Point<Pixels>,
2020 gutter_dimensions: &GutterDimensions,
2021 gutter_hitbox: &Hitbox,
2022 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2023 snapshot: &EditorSnapshot,
2024 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
2025 row_infos: &[RowInfo],
2026 window: &mut Window,
2027 cx: &mut App,
2028 ) -> Vec<AnyElement> {
2029 self.editor.update(cx, |editor, cx| {
2030 breakpoints
2031 .into_iter()
2032 .filter_map(|(display_row, (text_anchor, bp))| {
2033 if row_infos
2034 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2035 .is_some_and(|row_info| {
2036 row_info.expand_info.is_some()
2037 || row_info
2038 .diff_status
2039 .is_some_and(|status| status.is_deleted())
2040 })
2041 {
2042 return None;
2043 }
2044
2045 if range.start > display_row || range.end < display_row {
2046 return None;
2047 }
2048
2049 let row =
2050 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2051 if snapshot.is_line_folded(row) {
2052 return None;
2053 }
2054
2055 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
2056
2057 let button = prepaint_gutter_button(
2058 button,
2059 display_row,
2060 line_height,
2061 gutter_dimensions,
2062 scroll_pixel_position,
2063 gutter_hitbox,
2064 display_hunks,
2065 window,
2066 cx,
2067 );
2068 Some(button)
2069 })
2070 .collect_vec()
2071 })
2072 }
2073
2074 #[allow(clippy::too_many_arguments)]
2075 fn layout_run_indicators(
2076 &self,
2077 line_height: Pixels,
2078 range: Range<DisplayRow>,
2079 row_infos: &[RowInfo],
2080 scroll_pixel_position: gpui::Point<Pixels>,
2081 gutter_dimensions: &GutterDimensions,
2082 gutter_hitbox: &Hitbox,
2083 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2084 snapshot: &EditorSnapshot,
2085 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2086 window: &mut Window,
2087 cx: &mut App,
2088 ) -> Vec<AnyElement> {
2089 self.editor.update(cx, |editor, cx| {
2090 let active_task_indicator_row =
2091 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2092 deployed_from_indicator,
2093 actions,
2094 ..
2095 })) = editor.context_menu.borrow().as_ref()
2096 {
2097 actions
2098 .tasks
2099 .as_ref()
2100 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2101 .or(*deployed_from_indicator)
2102 } else {
2103 None
2104 };
2105
2106 let offset_range_start =
2107 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2108
2109 let offset_range_end =
2110 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2111
2112 editor
2113 .tasks
2114 .iter()
2115 .filter_map(|(_, tasks)| {
2116 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2117 if multibuffer_point < offset_range_start
2118 || multibuffer_point > offset_range_end
2119 {
2120 return None;
2121 }
2122 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2123 let buffer_folded = snapshot
2124 .buffer_snapshot
2125 .buffer_line_for_row(multibuffer_row)
2126 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2127 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2128 .unwrap_or(false);
2129 if buffer_folded {
2130 return None;
2131 }
2132
2133 if snapshot.is_line_folded(multibuffer_row) {
2134 // Skip folded indicators, unless it's the starting line of a fold.
2135 if multibuffer_row
2136 .0
2137 .checked_sub(1)
2138 .map_or(false, |previous_row| {
2139 snapshot.is_line_folded(MultiBufferRow(previous_row))
2140 })
2141 {
2142 return None;
2143 }
2144 }
2145
2146 let display_row = multibuffer_point.to_display_point(snapshot).row();
2147 if row_infos
2148 .get((display_row - range.start).0 as usize)
2149 .is_some_and(|row_info| row_info.expand_info.is_some())
2150 {
2151 return None;
2152 }
2153
2154 let button = editor.render_run_indicator(
2155 &self.style,
2156 Some(display_row) == active_task_indicator_row,
2157 display_row,
2158 breakpoints.remove(&display_row),
2159 cx,
2160 );
2161
2162 let button = prepaint_gutter_button(
2163 button,
2164 display_row,
2165 line_height,
2166 gutter_dimensions,
2167 scroll_pixel_position,
2168 gutter_hitbox,
2169 display_hunks,
2170 window,
2171 cx,
2172 );
2173 Some(button)
2174 })
2175 .collect_vec()
2176 })
2177 }
2178
2179 fn layout_expand_toggles(
2180 &self,
2181 gutter_hitbox: &Hitbox,
2182 gutter_dimensions: GutterDimensions,
2183 em_width: Pixels,
2184 line_height: Pixels,
2185 scroll_position: gpui::Point<f32>,
2186 buffer_rows: &[RowInfo],
2187 window: &mut Window,
2188 cx: &mut App,
2189 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2190 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2191
2192 let scroll_top = scroll_position.y * line_height;
2193
2194 let max_line_number_length = self
2195 .editor
2196 .read(cx)
2197 .buffer()
2198 .read(cx)
2199 .snapshot(cx)
2200 .widest_line_number()
2201 .ilog10()
2202 + 1;
2203
2204 let elements = buffer_rows
2205 .into_iter()
2206 .enumerate()
2207 .map(|(ix, row_info)| {
2208 let ExpandInfo {
2209 excerpt_id,
2210 direction,
2211 } = row_info.expand_info?;
2212
2213 let icon_name = match direction {
2214 ExpandExcerptDirection::Up => IconName::ExpandUp,
2215 ExpandExcerptDirection::Down => IconName::ExpandDown,
2216 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2217 };
2218
2219 let git_gutter_width = Self::gutter_strip_width(line_height);
2220 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2221
2222 let editor = self.editor.clone();
2223 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2224 && row_info
2225 .buffer_row
2226 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2227 || gutter_dimensions.right_padding == px(0.);
2228
2229 let width = if is_wide {
2230 available_width - px(2.)
2231 } else {
2232 available_width + em_width - px(2.)
2233 };
2234
2235 let toggle = IconButton::new(("expand", ix), icon_name)
2236 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2237 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2238 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2239 .width(width.into())
2240 .on_click(move |_, window, cx| {
2241 editor.update(cx, |editor, cx| {
2242 editor.expand_excerpt(excerpt_id, direction, window, cx);
2243 });
2244 })
2245 .tooltip(Tooltip::for_action_title(
2246 "Expand Excerpt",
2247 &crate::actions::ExpandExcerpts::default(),
2248 ))
2249 .into_any_element();
2250
2251 let position = point(
2252 git_gutter_width + px(1.),
2253 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2254 );
2255 let origin = gutter_hitbox.origin + position;
2256
2257 Some((toggle, origin))
2258 })
2259 .collect();
2260
2261 elements
2262 }
2263
2264 fn layout_code_actions_indicator(
2265 &self,
2266 line_height: Pixels,
2267 newest_selection_head: DisplayPoint,
2268 scroll_pixel_position: gpui::Point<Pixels>,
2269 gutter_dimensions: &GutterDimensions,
2270 gutter_hitbox: &Hitbox,
2271 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2272 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2273 window: &mut Window,
2274 cx: &mut App,
2275 ) -> Option<AnyElement> {
2276 let mut active = false;
2277 let mut button = None;
2278 let row = newest_selection_head.row();
2279 self.editor.update(cx, |editor, cx| {
2280 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2281 deployed_from_indicator,
2282 ..
2283 })) = editor.context_menu.borrow().as_ref()
2284 {
2285 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2286 };
2287
2288 let breakpoint = breakpoint_points.get(&row);
2289 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2290 });
2291
2292 let button = button?;
2293 breakpoint_points.remove(&row);
2294
2295 let button = prepaint_gutter_button(
2296 button,
2297 row,
2298 line_height,
2299 gutter_dimensions,
2300 scroll_pixel_position,
2301 gutter_hitbox,
2302 display_hunks,
2303 window,
2304 cx,
2305 );
2306
2307 Some(button)
2308 }
2309
2310 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2311 if let Some(index) = participant_index {
2312 cx.theme().players().color_for_participant(index.0)
2313 } else {
2314 cx.theme().players().absent()
2315 }
2316 }
2317
2318 fn calculate_relative_line_numbers(
2319 &self,
2320 snapshot: &EditorSnapshot,
2321 rows: &Range<DisplayRow>,
2322 relative_to: Option<DisplayRow>,
2323 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2324 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2325 let Some(relative_to) = relative_to else {
2326 return relative_rows;
2327 };
2328
2329 let start = rows.start.min(relative_to);
2330 let end = rows.end.max(relative_to);
2331
2332 let buffer_rows = snapshot
2333 .row_infos(start)
2334 .take(1 + end.minus(start) as usize)
2335 .collect::<Vec<_>>();
2336
2337 let head_idx = relative_to.minus(start);
2338 let mut delta = 1;
2339 let mut i = head_idx + 1;
2340 while i < buffer_rows.len() as u32 {
2341 if buffer_rows[i as usize].buffer_row.is_some() {
2342 if rows.contains(&DisplayRow(i + start.0)) {
2343 relative_rows.insert(DisplayRow(i + start.0), delta);
2344 }
2345 delta += 1;
2346 }
2347 i += 1;
2348 }
2349 delta = 1;
2350 i = head_idx.min(buffer_rows.len() as u32 - 1);
2351 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2352 i -= 1;
2353 }
2354
2355 while i > 0 {
2356 i -= 1;
2357 if buffer_rows[i as usize].buffer_row.is_some() {
2358 if rows.contains(&DisplayRow(i + start.0)) {
2359 relative_rows.insert(DisplayRow(i + start.0), delta);
2360 }
2361 delta += 1;
2362 }
2363 }
2364
2365 relative_rows
2366 }
2367
2368 fn layout_line_numbers(
2369 &self,
2370 gutter_hitbox: Option<&Hitbox>,
2371 gutter_dimensions: GutterDimensions,
2372 line_height: Pixels,
2373 scroll_position: gpui::Point<f32>,
2374 rows: Range<DisplayRow>,
2375 buffer_rows: &[RowInfo],
2376 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2377 newest_selection_head: Option<DisplayPoint>,
2378 snapshot: &EditorSnapshot,
2379 window: &mut Window,
2380 cx: &mut App,
2381 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2382 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2383 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
2384 });
2385 if !include_line_numbers {
2386 return Arc::default();
2387 }
2388
2389 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2390 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2391 let newest = editor.selections.newest::<Point>(cx);
2392 SelectionLayout::new(
2393 newest,
2394 editor.selections.line_mode,
2395 editor.cursor_shape,
2396 &snapshot.display_snapshot,
2397 true,
2398 true,
2399 None,
2400 )
2401 .head
2402 });
2403 let is_relative = editor.should_use_relative_line_numbers(cx);
2404 (newest_selection_head, is_relative)
2405 });
2406
2407 let relative_to = if is_relative {
2408 Some(newest_selection_head.row())
2409 } else {
2410 None
2411 };
2412 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2413 let mut line_number = String::new();
2414 let line_numbers = buffer_rows
2415 .into_iter()
2416 .enumerate()
2417 .flat_map(|(ix, row_info)| {
2418 let display_row = DisplayRow(rows.start.0 + ix as u32);
2419 line_number.clear();
2420 let non_relative_number = row_info.buffer_row? + 1;
2421 let number = relative_rows
2422 .get(&display_row)
2423 .unwrap_or(&non_relative_number);
2424 write!(&mut line_number, "{number}").unwrap();
2425 if row_info
2426 .diff_status
2427 .is_some_and(|status| status.is_deleted())
2428 {
2429 return None;
2430 }
2431
2432 let color = active_rows
2433 .get(&display_row)
2434 .map(|spec| {
2435 if spec.breakpoint {
2436 cx.theme().colors().debugger_accent
2437 } else {
2438 cx.theme().colors().editor_active_line_number
2439 }
2440 })
2441 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2442 let shaped_line = self
2443 .shape_line_number(SharedString::from(&line_number), color, window)
2444 .log_err()?;
2445 let scroll_top = scroll_position.y * line_height;
2446 let line_origin = gutter_hitbox.map(|hitbox| {
2447 hitbox.origin
2448 + point(
2449 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2450 ix as f32 * line_height - (scroll_top % line_height),
2451 )
2452 });
2453
2454 #[cfg(not(test))]
2455 let hitbox = line_origin.map(|line_origin| {
2456 window.insert_hitbox(
2457 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2458 false,
2459 )
2460 });
2461 #[cfg(test)]
2462 let hitbox = {
2463 let _ = line_origin;
2464 None
2465 };
2466
2467 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2468 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2469 let line_number = LineNumberLayout {
2470 shaped_line,
2471 hitbox,
2472 };
2473 Some((multi_buffer_row, line_number))
2474 })
2475 .collect();
2476 Arc::new(line_numbers)
2477 }
2478
2479 fn layout_crease_toggles(
2480 &self,
2481 rows: Range<DisplayRow>,
2482 row_infos: &[RowInfo],
2483 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2484 snapshot: &EditorSnapshot,
2485 window: &mut Window,
2486 cx: &mut App,
2487 ) -> Vec<Option<AnyElement>> {
2488 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2489 && snapshot.mode.is_full()
2490 && self.editor.read(cx).is_singleton(cx);
2491 if include_fold_statuses {
2492 row_infos
2493 .into_iter()
2494 .enumerate()
2495 .map(|(ix, info)| {
2496 if info.expand_info.is_some() {
2497 return None;
2498 }
2499 let row = info.multibuffer_row?;
2500 let display_row = DisplayRow(rows.start.0 + ix as u32);
2501 let active = active_rows.contains_key(&display_row);
2502
2503 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2504 })
2505 .collect()
2506 } else {
2507 Vec::new()
2508 }
2509 }
2510
2511 fn layout_crease_trailers(
2512 &self,
2513 buffer_rows: impl IntoIterator<Item = RowInfo>,
2514 snapshot: &EditorSnapshot,
2515 window: &mut Window,
2516 cx: &mut App,
2517 ) -> Vec<Option<AnyElement>> {
2518 buffer_rows
2519 .into_iter()
2520 .map(|row_info| {
2521 if row_info.expand_info.is_some() {
2522 return None;
2523 }
2524 if let Some(row) = row_info.multibuffer_row {
2525 snapshot.render_crease_trailer(row, window, cx)
2526 } else {
2527 None
2528 }
2529 })
2530 .collect()
2531 }
2532
2533 fn layout_lines(
2534 rows: Range<DisplayRow>,
2535 snapshot: &EditorSnapshot,
2536 style: &EditorStyle,
2537 editor_width: Pixels,
2538 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2539 window: &mut Window,
2540 cx: &mut App,
2541 ) -> Vec<LineWithInvisibles> {
2542 if rows.start >= rows.end {
2543 return Vec::new();
2544 }
2545
2546 // Show the placeholder when the editor is empty
2547 if snapshot.is_empty() {
2548 let font_size = style.text.font_size.to_pixels(window.rem_size());
2549 let placeholder_color = cx.theme().colors().text_placeholder;
2550 let placeholder_text = snapshot.placeholder_text();
2551
2552 let placeholder_lines = placeholder_text
2553 .as_ref()
2554 .map_or("", AsRef::as_ref)
2555 .split('\n')
2556 .skip(rows.start.0 as usize)
2557 .chain(iter::repeat(""))
2558 .take(rows.len());
2559 placeholder_lines
2560 .filter_map(move |line| {
2561 let run = TextRun {
2562 len: line.len(),
2563 font: style.text.font(),
2564 color: placeholder_color,
2565 background_color: None,
2566 underline: Default::default(),
2567 strikethrough: None,
2568 };
2569 window
2570 .text_system()
2571 .shape_line(line.to_string().into(), font_size, &[run])
2572 .log_err()
2573 })
2574 .map(|line| LineWithInvisibles {
2575 width: line.width,
2576 len: line.len,
2577 fragments: smallvec![LineFragment::Text(line)],
2578 invisibles: Vec::new(),
2579 font_size,
2580 })
2581 .collect()
2582 } else {
2583 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2584 LineWithInvisibles::from_chunks(
2585 chunks,
2586 &style,
2587 MAX_LINE_LEN,
2588 rows.len(),
2589 snapshot.mode,
2590 editor_width,
2591 is_row_soft_wrapped,
2592 window,
2593 cx,
2594 )
2595 }
2596 }
2597
2598 fn prepaint_lines(
2599 &self,
2600 start_row: DisplayRow,
2601 line_layouts: &mut [LineWithInvisibles],
2602 line_height: Pixels,
2603 scroll_pixel_position: gpui::Point<Pixels>,
2604 content_origin: gpui::Point<Pixels>,
2605 window: &mut Window,
2606 cx: &mut App,
2607 ) -> SmallVec<[AnyElement; 1]> {
2608 let mut line_elements = SmallVec::new();
2609 for (ix, line) in line_layouts.iter_mut().enumerate() {
2610 let row = start_row + DisplayRow(ix as u32);
2611 line.prepaint(
2612 line_height,
2613 scroll_pixel_position,
2614 row,
2615 content_origin,
2616 &mut line_elements,
2617 window,
2618 cx,
2619 );
2620 }
2621 line_elements
2622 }
2623
2624 fn render_block(
2625 &self,
2626 block: &Block,
2627 available_width: AvailableSpace,
2628 block_id: BlockId,
2629 block_row_start: DisplayRow,
2630 snapshot: &EditorSnapshot,
2631 text_x: Pixels,
2632 rows: &Range<DisplayRow>,
2633 line_layouts: &[LineWithInvisibles],
2634 gutter_dimensions: &GutterDimensions,
2635 line_height: Pixels,
2636 em_width: Pixels,
2637 text_hitbox: &Hitbox,
2638 editor_width: Pixels,
2639 scroll_width: &mut Pixels,
2640 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2641 row_block_types: &mut HashMap<DisplayRow, bool>,
2642 selections: &[Selection<Point>],
2643 selected_buffer_ids: &Vec<BufferId>,
2644 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2645 sticky_header_excerpt_id: Option<ExcerptId>,
2646 window: &mut Window,
2647 cx: &mut App,
2648 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
2649 let mut x_position = None;
2650 let mut element = match block {
2651 Block::Custom(custom) => {
2652 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
2653 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
2654 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
2655 return None;
2656 }
2657 let align_to = block_start.to_display_point(snapshot);
2658 let x_and_width = |layout: &LineWithInvisibles| {
2659 Some((
2660 text_x + layout.x_for_index(align_to.column() as usize),
2661 text_x + layout.width,
2662 ))
2663 };
2664 x_position = if rows.contains(&align_to.row()) {
2665 x_and_width(&line_layouts[align_to.row().minus(rows.start) as usize])
2666 } else {
2667 x_and_width(&layout_line(
2668 align_to.row(),
2669 snapshot,
2670 &self.style,
2671 editor_width,
2672 is_row_soft_wrapped,
2673 window,
2674 cx,
2675 ))
2676 };
2677
2678 let anchor_x = x_position.unwrap().0;
2679
2680 let selected = selections
2681 .binary_search_by(|selection| {
2682 if selection.end <= block_start {
2683 Ordering::Less
2684 } else if selection.start >= block_end {
2685 Ordering::Greater
2686 } else {
2687 Ordering::Equal
2688 }
2689 })
2690 .is_ok();
2691
2692 div()
2693 .size_full()
2694 .child(custom.render(&mut BlockContext {
2695 window,
2696 app: cx,
2697 anchor_x,
2698 gutter_dimensions,
2699 line_height,
2700 em_width,
2701 block_id,
2702 selected,
2703 max_width: text_hitbox.size.width.max(*scroll_width),
2704 editor_style: &self.style,
2705 }))
2706 .into_any()
2707 }
2708
2709 Block::FoldedBuffer {
2710 first_excerpt,
2711 height,
2712 ..
2713 } => {
2714 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2715 let result = v_flex().id(block_id).w_full();
2716
2717 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2718 result
2719 .child(self.render_buffer_header(
2720 first_excerpt,
2721 true,
2722 selected,
2723 false,
2724 jump_data,
2725 window,
2726 cx,
2727 ))
2728 .into_any_element()
2729 }
2730
2731 Block::ExcerptBoundary {
2732 excerpt,
2733 height,
2734 starts_new_buffer,
2735 ..
2736 } => {
2737 let color = cx.theme().colors().clone();
2738 let mut result = v_flex().id(block_id).w_full();
2739
2740 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2741
2742 if *starts_new_buffer {
2743 if sticky_header_excerpt_id != Some(excerpt.id) {
2744 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2745
2746 result = result.child(self.render_buffer_header(
2747 excerpt, false, selected, false, jump_data, window, cx,
2748 ));
2749 } else {
2750 result =
2751 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2752 }
2753 } else {
2754 result = result.child(
2755 h_flex().relative().child(
2756 div()
2757 .top(line_height / 2.)
2758 .absolute()
2759 .w_full()
2760 .h_px()
2761 .bg(color.border_variant),
2762 ),
2763 );
2764 };
2765
2766 result.into_any()
2767 }
2768 };
2769
2770 // Discover the element's content height, then round up to the nearest multiple of line height.
2771 let preliminary_size = element.layout_as_root(
2772 size(available_width, AvailableSpace::MinContent),
2773 window,
2774 cx,
2775 );
2776 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2777 let final_size = if preliminary_size.height == quantized_height {
2778 preliminary_size
2779 } else {
2780 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2781 };
2782 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
2783
2784 let mut row = block_row_start;
2785 let mut x_offset = px(0.);
2786 let mut is_block = true;
2787
2788 if let BlockId::Custom(custom_block_id) = block_id {
2789 if block.has_height() {
2790 if block.place_near() {
2791 if let Some((x_target, line_width)) = x_position {
2792 let margin = em_width * 2;
2793 if line_width + final_size.width + margin
2794 < editor_width + gutter_dimensions.full_width()
2795 && !row_block_types.contains_key(&(row - 1))
2796 && element_height_in_lines == 1
2797 {
2798 x_offset = line_width + margin;
2799 row = row - 1;
2800 is_block = false;
2801 element_height_in_lines = 0;
2802 row_block_types.insert(row, is_block);
2803 } else {
2804 let max_offset =
2805 editor_width + gutter_dimensions.full_width() - final_size.width;
2806 let min_offset = (x_target + em_width - final_size.width)
2807 .max(gutter_dimensions.full_width());
2808 x_offset = x_target.min(max_offset).max(min_offset);
2809 }
2810 }
2811 };
2812 if element_height_in_lines != block.height() {
2813 resized_blocks.insert(custom_block_id, element_height_in_lines);
2814 }
2815 }
2816 }
2817 for i in 0..element_height_in_lines {
2818 row_block_types.insert(row + i, is_block);
2819 }
2820
2821 Some((element, final_size, row, x_offset))
2822 }
2823
2824 fn render_buffer_header(
2825 &self,
2826 for_excerpt: &ExcerptInfo,
2827 is_folded: bool,
2828 is_selected: bool,
2829 is_sticky: bool,
2830 jump_data: JumpData,
2831 window: &mut Window,
2832 cx: &mut App,
2833 ) -> Div {
2834 let editor = self.editor.read(cx);
2835 let file_status = editor
2836 .buffer
2837 .read(cx)
2838 .all_diff_hunks_expanded()
2839 .then(|| {
2840 editor
2841 .project
2842 .as_ref()?
2843 .read(cx)
2844 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2845 })
2846 .flatten();
2847
2848 let include_root = editor
2849 .project
2850 .as_ref()
2851 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2852 .unwrap_or_default();
2853 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
2854 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2855 let filename = path
2856 .as_ref()
2857 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2858 let parent_path = path.as_ref().and_then(|path| {
2859 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2860 });
2861 let focus_handle = editor.focus_handle(cx);
2862 let colors = cx.theme().colors();
2863
2864 div()
2865 .p_1()
2866 .w_full()
2867 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2868 .child(
2869 h_flex()
2870 .size_full()
2871 .gap_2()
2872 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2873 .pl_0p5()
2874 .pr_5()
2875 .rounded_sm()
2876 .when(is_sticky, |el| el.shadow_md())
2877 .border_1()
2878 .map(|div| {
2879 let border_color = if is_selected
2880 && is_folded
2881 && focus_handle.contains_focused(window, cx)
2882 {
2883 colors.border_focused
2884 } else {
2885 colors.border
2886 };
2887 div.border_color(border_color)
2888 })
2889 .bg(colors.editor_subheader_background)
2890 .hover(|style| style.bg(colors.element_hover))
2891 .map(|header| {
2892 let editor = self.editor.clone();
2893 let buffer_id = for_excerpt.buffer_id;
2894 let toggle_chevron_icon =
2895 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2896 header.child(
2897 div()
2898 .hover(|style| style.bg(colors.element_selected))
2899 .rounded_xs()
2900 .child(
2901 ButtonLike::new("toggle-buffer-fold")
2902 .style(ui::ButtonStyle::Transparent)
2903 .height(px(28.).into())
2904 .width(px(28.).into())
2905 .children(toggle_chevron_icon)
2906 .tooltip({
2907 let focus_handle = focus_handle.clone();
2908 move |window, cx| {
2909 Tooltip::for_action_in(
2910 "Toggle Excerpt Fold",
2911 &ToggleFold,
2912 &focus_handle,
2913 window,
2914 cx,
2915 )
2916 }
2917 })
2918 .on_click(move |_, _, cx| {
2919 if is_folded {
2920 editor.update(cx, |editor, cx| {
2921 editor.unfold_buffer(buffer_id, cx);
2922 });
2923 } else {
2924 editor.update(cx, |editor, cx| {
2925 editor.fold_buffer(buffer_id, cx);
2926 });
2927 }
2928 }),
2929 ),
2930 )
2931 })
2932 .children(
2933 editor
2934 .addons
2935 .values()
2936 .filter_map(|addon| {
2937 addon.render_buffer_header_controls(for_excerpt, window, cx)
2938 })
2939 .take(1),
2940 )
2941 .child(
2942 h_flex()
2943 .cursor_pointer()
2944 .id("path header block")
2945 .size_full()
2946 .justify_between()
2947 .child(
2948 h_flex()
2949 .gap_2()
2950 .child(
2951 Label::new(
2952 filename
2953 .map(SharedString::from)
2954 .unwrap_or_else(|| "untitled".into()),
2955 )
2956 .single_line()
2957 .when_some(
2958 file_status,
2959 |el, status| {
2960 el.color(if status.is_conflicted() {
2961 Color::Conflict
2962 } else if status.is_modified() {
2963 Color::Modified
2964 } else if status.is_deleted() {
2965 Color::Disabled
2966 } else {
2967 Color::Created
2968 })
2969 .when(status.is_deleted(), |el| el.strikethrough())
2970 },
2971 ),
2972 )
2973 .when_some(parent_path, |then, path| {
2974 then.child(div().child(path).text_color(
2975 if file_status.is_some_and(FileStatus::is_deleted) {
2976 colors.text_disabled
2977 } else {
2978 colors.text_muted
2979 },
2980 ))
2981 }),
2982 )
2983 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
2984 el.child(
2985 h_flex()
2986 .id("jump-to-file-button")
2987 .gap_2p5()
2988 .child(Label::new("Jump To File"))
2989 .children(
2990 KeyBinding::for_action_in(
2991 &OpenExcerpts,
2992 &focus_handle,
2993 window,
2994 cx,
2995 )
2996 .map(|binding| binding.into_any_element()),
2997 ),
2998 )
2999 })
3000 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3001 .on_click(window.listener_for(&self.editor, {
3002 move |editor, e: &ClickEvent, window, cx| {
3003 editor.open_excerpts_common(
3004 Some(jump_data.clone()),
3005 e.down.modifiers.secondary(),
3006 window,
3007 cx,
3008 );
3009 }
3010 })),
3011 ),
3012 )
3013 }
3014
3015 fn render_blocks(
3016 &self,
3017 rows: Range<DisplayRow>,
3018 snapshot: &EditorSnapshot,
3019 hitbox: &Hitbox,
3020 text_hitbox: &Hitbox,
3021 editor_width: Pixels,
3022 scroll_width: &mut Pixels,
3023 gutter_dimensions: &GutterDimensions,
3024 em_width: Pixels,
3025 text_x: Pixels,
3026 line_height: Pixels,
3027 line_layouts: &mut [LineWithInvisibles],
3028 selections: &[Selection<Point>],
3029 selected_buffer_ids: &Vec<BufferId>,
3030 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3031 sticky_header_excerpt_id: Option<ExcerptId>,
3032 window: &mut Window,
3033 cx: &mut App,
3034 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3035 let (fixed_blocks, non_fixed_blocks) = snapshot
3036 .blocks_in_range(rows.clone())
3037 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3038
3039 let mut focused_block = self
3040 .editor
3041 .update(cx, |editor, _| editor.take_focused_block());
3042 let mut fixed_block_max_width = Pixels::ZERO;
3043 let mut blocks = Vec::new();
3044 let mut resized_blocks = HashMap::default();
3045 let mut row_block_types = HashMap::default();
3046
3047 for (row, block) in fixed_blocks {
3048 let block_id = block.id();
3049
3050 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3051 focused_block = None;
3052 }
3053
3054 if let Some((element, element_size, row, x_offset)) = self.render_block(
3055 block,
3056 AvailableSpace::MinContent,
3057 block_id,
3058 row,
3059 snapshot,
3060 text_x,
3061 &rows,
3062 line_layouts,
3063 gutter_dimensions,
3064 line_height,
3065 em_width,
3066 text_hitbox,
3067 editor_width,
3068 scroll_width,
3069 &mut resized_blocks,
3070 &mut row_block_types,
3071 selections,
3072 selected_buffer_ids,
3073 is_row_soft_wrapped,
3074 sticky_header_excerpt_id,
3075 window,
3076 cx,
3077 ) {
3078 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3079 blocks.push(BlockLayout {
3080 id: block_id,
3081 x_offset,
3082 row: Some(row),
3083 element,
3084 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3085 style: BlockStyle::Fixed,
3086 overlaps_gutter: true,
3087 is_buffer_header: block.is_buffer_header(),
3088 });
3089 }
3090 }
3091
3092 for (row, block) in non_fixed_blocks {
3093 let style = block.style();
3094 let width = match (style, block.place_near()) {
3095 (_, true) => AvailableSpace::MinContent,
3096 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3097 (BlockStyle::Flex, _) => hitbox
3098 .size
3099 .width
3100 .max(fixed_block_max_width)
3101 .max(gutter_dimensions.width + *scroll_width)
3102 .into(),
3103 (BlockStyle::Fixed, _) => unreachable!(),
3104 };
3105 let block_id = block.id();
3106
3107 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3108 focused_block = None;
3109 }
3110
3111 if let Some((element, element_size, row, x_offset)) = self.render_block(
3112 block,
3113 width,
3114 block_id,
3115 row,
3116 snapshot,
3117 text_x,
3118 &rows,
3119 line_layouts,
3120 gutter_dimensions,
3121 line_height,
3122 em_width,
3123 text_hitbox,
3124 editor_width,
3125 scroll_width,
3126 &mut resized_blocks,
3127 &mut row_block_types,
3128 selections,
3129 selected_buffer_ids,
3130 is_row_soft_wrapped,
3131 sticky_header_excerpt_id,
3132 window,
3133 cx,
3134 ) {
3135 blocks.push(BlockLayout {
3136 id: block_id,
3137 x_offset,
3138 row: Some(row),
3139 element,
3140 available_space: size(width, element_size.height.into()),
3141 style,
3142 overlaps_gutter: !block.place_near(),
3143 is_buffer_header: block.is_buffer_header(),
3144 });
3145 }
3146 }
3147
3148 if let Some(focused_block) = focused_block {
3149 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3150 if focus_handle.is_focused(window) {
3151 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3152 let style = block.style();
3153 let width = match style {
3154 BlockStyle::Fixed => AvailableSpace::MinContent,
3155 BlockStyle::Flex => AvailableSpace::Definite(
3156 hitbox
3157 .size
3158 .width
3159 .max(fixed_block_max_width)
3160 .max(gutter_dimensions.width + *scroll_width),
3161 ),
3162 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3163 };
3164
3165 if let Some((element, element_size, _, x_offset)) = self.render_block(
3166 &block,
3167 width,
3168 focused_block.id,
3169 rows.end,
3170 snapshot,
3171 text_x,
3172 &rows,
3173 line_layouts,
3174 gutter_dimensions,
3175 line_height,
3176 em_width,
3177 text_hitbox,
3178 editor_width,
3179 scroll_width,
3180 &mut resized_blocks,
3181 &mut row_block_types,
3182 selections,
3183 selected_buffer_ids,
3184 is_row_soft_wrapped,
3185 sticky_header_excerpt_id,
3186 window,
3187 cx,
3188 ) {
3189 blocks.push(BlockLayout {
3190 id: block.id(),
3191 x_offset,
3192 row: None,
3193 element,
3194 available_space: size(width, element_size.height.into()),
3195 style,
3196 overlaps_gutter: true,
3197 is_buffer_header: block.is_buffer_header(),
3198 });
3199 }
3200 }
3201 }
3202 }
3203 }
3204
3205 if resized_blocks.is_empty() {
3206 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3207 Ok((blocks, row_block_types))
3208 } else {
3209 Err(resized_blocks)
3210 }
3211 }
3212
3213 fn layout_blocks(
3214 &self,
3215 blocks: &mut Vec<BlockLayout>,
3216 hitbox: &Hitbox,
3217 line_height: Pixels,
3218 scroll_pixel_position: gpui::Point<Pixels>,
3219 window: &mut Window,
3220 cx: &mut App,
3221 ) {
3222 for block in blocks {
3223 let mut origin = if let Some(row) = block.row {
3224 hitbox.origin
3225 + point(
3226 block.x_offset,
3227 row.as_f32() * line_height - scroll_pixel_position.y,
3228 )
3229 } else {
3230 // Position the block outside the visible area
3231 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3232 };
3233
3234 if !matches!(block.style, BlockStyle::Sticky) {
3235 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3236 }
3237
3238 let focus_handle =
3239 block
3240 .element
3241 .prepaint_as_root(origin, block.available_space, window, cx);
3242
3243 if let Some(focus_handle) = focus_handle {
3244 self.editor.update(cx, |editor, _cx| {
3245 editor.set_focused_block(FocusedBlock {
3246 id: block.id,
3247 focus_handle: focus_handle.downgrade(),
3248 });
3249 });
3250 }
3251 }
3252 }
3253
3254 fn layout_sticky_buffer_header(
3255 &self,
3256 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3257 scroll_position: f32,
3258 line_height: Pixels,
3259 snapshot: &EditorSnapshot,
3260 hitbox: &Hitbox,
3261 selected_buffer_ids: &Vec<BufferId>,
3262 blocks: &[BlockLayout],
3263 window: &mut Window,
3264 cx: &mut App,
3265 ) -> AnyElement {
3266 let jump_data = header_jump_data(
3267 snapshot,
3268 DisplayRow(scroll_position as u32),
3269 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3270 excerpt,
3271 );
3272
3273 let editor_bg_color = cx.theme().colors().editor_background;
3274
3275 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3276
3277 let mut header = v_flex()
3278 .relative()
3279 .child(
3280 div()
3281 .w(hitbox.bounds.size.width)
3282 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3283 .bg(linear_gradient(
3284 0.,
3285 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3286 linear_color_stop(editor_bg_color, 0.6),
3287 ))
3288 .absolute()
3289 .top_0(),
3290 )
3291 .child(
3292 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3293 .into_any_element(),
3294 )
3295 .into_any_element();
3296
3297 let mut origin = hitbox.origin;
3298 // Move floating header up to avoid colliding with the next buffer header.
3299 for block in blocks.iter() {
3300 if !block.is_buffer_header {
3301 continue;
3302 }
3303
3304 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3305 continue;
3306 };
3307
3308 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3309 let offset = scroll_position - max_row as f32;
3310
3311 if offset > 0.0 {
3312 origin.y -= offset * line_height;
3313 }
3314 break;
3315 }
3316
3317 let size = size(
3318 AvailableSpace::Definite(hitbox.size.width),
3319 AvailableSpace::MinContent,
3320 );
3321
3322 header.prepaint_as_root(origin, size, window, cx);
3323
3324 header
3325 }
3326
3327 fn layout_cursor_popovers(
3328 &self,
3329 line_height: Pixels,
3330 text_hitbox: &Hitbox,
3331 content_origin: gpui::Point<Pixels>,
3332 start_row: DisplayRow,
3333 scroll_pixel_position: gpui::Point<Pixels>,
3334 line_layouts: &[LineWithInvisibles],
3335 cursor: DisplayPoint,
3336 cursor_point: Point,
3337 style: &EditorStyle,
3338 window: &mut Window,
3339 cx: &mut App,
3340 ) {
3341 let mut min_menu_height = Pixels::ZERO;
3342 let mut max_menu_height = Pixels::ZERO;
3343 let mut height_above_menu = Pixels::ZERO;
3344 let height_below_menu = Pixels::ZERO;
3345 let mut edit_prediction_popover_visible = false;
3346 let mut context_menu_visible = false;
3347 let context_menu_placement;
3348
3349 {
3350 let editor = self.editor.read(cx);
3351 if editor
3352 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3353 {
3354 height_above_menu +=
3355 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3356 edit_prediction_popover_visible = true;
3357 }
3358
3359 if editor.context_menu_visible() {
3360 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3361 let (min_height_in_lines, max_height_in_lines) = editor
3362 .context_menu_options
3363 .as_ref()
3364 .map_or((3, 12), |options| {
3365 (options.min_entries_visible, options.max_entries_visible)
3366 });
3367
3368 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3369 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3370 context_menu_visible = true;
3371 }
3372 }
3373 context_menu_placement = editor
3374 .context_menu_options
3375 .as_ref()
3376 .and_then(|options| options.placement.clone());
3377 }
3378
3379 let visible = edit_prediction_popover_visible || context_menu_visible;
3380 if !visible {
3381 return;
3382 }
3383
3384 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3385 let target_position = content_origin
3386 + gpui::Point {
3387 x: cmp::max(
3388 px(0.),
3389 cursor_row_layout.x_for_index(cursor.column() as usize)
3390 - scroll_pixel_position.x,
3391 ),
3392 y: cmp::max(
3393 px(0.),
3394 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3395 ),
3396 };
3397
3398 let viewport_bounds =
3399 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3400 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3401 ..Default::default()
3402 });
3403
3404 let min_height = height_above_menu + min_menu_height + height_below_menu;
3405 let max_height = height_above_menu + max_menu_height + height_below_menu;
3406 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3407 target_position,
3408 line_height,
3409 min_height,
3410 max_height,
3411 context_menu_placement,
3412 text_hitbox,
3413 viewport_bounds,
3414 window,
3415 cx,
3416 |height, max_width_for_stable_x, y_flipped, window, cx| {
3417 // First layout the menu to get its size - others can be at least this wide.
3418 let context_menu = if context_menu_visible {
3419 let menu_height = if y_flipped {
3420 height - height_below_menu
3421 } else {
3422 height - height_above_menu
3423 };
3424 let mut element = self
3425 .render_context_menu(line_height, menu_height, window, cx)
3426 .expect("Visible context menu should always render.");
3427 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3428 Some((CursorPopoverType::CodeContextMenu, element, size))
3429 } else {
3430 None
3431 };
3432 let min_width = context_menu
3433 .as_ref()
3434 .map_or(px(0.), |(_, _, size)| size.width);
3435 let max_width = max_width_for_stable_x.max(
3436 context_menu
3437 .as_ref()
3438 .map_or(px(0.), |(_, _, size)| size.width),
3439 );
3440
3441 let edit_prediction = if edit_prediction_popover_visible {
3442 self.editor.update(cx, move |editor, cx| {
3443 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3444 let mut element = editor.render_edit_prediction_cursor_popover(
3445 min_width,
3446 max_width,
3447 cursor_point,
3448 style,
3449 accept_binding.keystroke(),
3450 window,
3451 cx,
3452 )?;
3453 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3454 Some((CursorPopoverType::EditPrediction, element, size))
3455 })
3456 } else {
3457 None
3458 };
3459 vec![edit_prediction, context_menu]
3460 .into_iter()
3461 .flatten()
3462 .collect::<Vec<_>>()
3463 },
3464 ) else {
3465 return;
3466 };
3467
3468 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3469 .iter()
3470 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3471 else {
3472 return;
3473 };
3474 let last_ix = laid_out_popovers.len() - 1;
3475 let menu_is_last = menu_ix == last_ix;
3476 let first_popover_bounds = laid_out_popovers[0].1;
3477 let last_popover_bounds = laid_out_popovers[last_ix].1;
3478
3479 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3480 // right, and otherwise it goes below or to the right.
3481 let mut target_bounds = Bounds::from_corners(
3482 first_popover_bounds.origin,
3483 last_popover_bounds.bottom_right(),
3484 );
3485 target_bounds.size.width = menu_bounds.size.width;
3486
3487 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3488 // based on this is preferred for layout stability.
3489 let mut max_target_bounds = target_bounds;
3490 max_target_bounds.size.height = max_height;
3491 if y_flipped {
3492 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3493 }
3494
3495 // Add spacing around `target_bounds` and `max_target_bounds`.
3496 let mut extend_amount = Edges::all(MENU_GAP);
3497 if y_flipped {
3498 extend_amount.bottom = line_height;
3499 } else {
3500 extend_amount.top = line_height;
3501 }
3502 let target_bounds = target_bounds.extend(extend_amount);
3503 let max_target_bounds = max_target_bounds.extend(extend_amount);
3504
3505 let must_place_above_or_below =
3506 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3507 laid_out_popovers[menu_ix + 1..]
3508 .iter()
3509 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3510 } else {
3511 false
3512 };
3513
3514 self.layout_context_menu_aside(
3515 y_flipped,
3516 *menu_bounds,
3517 target_bounds,
3518 max_target_bounds,
3519 max_menu_height,
3520 must_place_above_or_below,
3521 text_hitbox,
3522 viewport_bounds,
3523 window,
3524 cx,
3525 );
3526 }
3527
3528 fn layout_gutter_menu(
3529 &self,
3530 line_height: Pixels,
3531 text_hitbox: &Hitbox,
3532 content_origin: gpui::Point<Pixels>,
3533 scroll_pixel_position: gpui::Point<Pixels>,
3534 gutter_overshoot: Pixels,
3535 window: &mut Window,
3536 cx: &mut App,
3537 ) {
3538 let editor = self.editor.read(cx);
3539 if !editor.context_menu_visible() {
3540 return;
3541 }
3542 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3543 editor.context_menu_origin()
3544 else {
3545 return;
3546 };
3547 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3548 // indicator than just a plain first column of the text field.
3549 let target_position = content_origin
3550 + gpui::Point {
3551 x: -gutter_overshoot,
3552 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3553 };
3554
3555 let (min_height_in_lines, max_height_in_lines) = editor
3556 .context_menu_options
3557 .as_ref()
3558 .map_or((3, 12), |options| {
3559 (options.min_entries_visible, options.max_entries_visible)
3560 });
3561
3562 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3563 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3564 let viewport_bounds =
3565 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3566 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3567 ..Default::default()
3568 });
3569 self.layout_popovers_above_or_below_line(
3570 target_position,
3571 line_height,
3572 min_height,
3573 max_height,
3574 editor
3575 .context_menu_options
3576 .as_ref()
3577 .and_then(|options| options.placement.clone()),
3578 text_hitbox,
3579 viewport_bounds,
3580 window,
3581 cx,
3582 move |height, _max_width_for_stable_x, _, window, cx| {
3583 let mut element = self
3584 .render_context_menu(line_height, height, window, cx)
3585 .expect("Visible context menu should always render.");
3586 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3587 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3588 },
3589 );
3590 }
3591
3592 fn layout_popovers_above_or_below_line(
3593 &self,
3594 target_position: gpui::Point<Pixels>,
3595 line_height: Pixels,
3596 min_height: Pixels,
3597 max_height: Pixels,
3598 placement: Option<ContextMenuPlacement>,
3599 text_hitbox: &Hitbox,
3600 viewport_bounds: Bounds<Pixels>,
3601 window: &mut Window,
3602 cx: &mut App,
3603 make_sized_popovers: impl FnOnce(
3604 Pixels,
3605 Pixels,
3606 bool,
3607 &mut Window,
3608 &mut App,
3609 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3610 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3611 let text_style = TextStyleRefinement {
3612 line_height: Some(DefiniteLength::Fraction(
3613 BufferLineHeight::Comfortable.value(),
3614 )),
3615 ..Default::default()
3616 };
3617 window.with_text_style(Some(text_style), |window| {
3618 // If the max height won't fit below and there is more space above, put it above the line.
3619 let bottom_y_when_flipped = target_position.y - line_height;
3620 let available_above = bottom_y_when_flipped - text_hitbox.top();
3621 let available_below = text_hitbox.bottom() - target_position.y;
3622 let y_overflows_below = max_height > available_below;
3623 let mut y_flipped = match placement {
3624 Some(ContextMenuPlacement::Above) => true,
3625 Some(ContextMenuPlacement::Below) => false,
3626 None => y_overflows_below && available_above > available_below,
3627 };
3628 let mut height = cmp::min(
3629 max_height,
3630 if y_flipped {
3631 available_above
3632 } else {
3633 available_below
3634 },
3635 );
3636
3637 // If the min height doesn't fit within text bounds, instead fit within the window.
3638 if height < min_height {
3639 let available_above = bottom_y_when_flipped;
3640 let available_below = viewport_bounds.bottom() - target_position.y;
3641 let (y_flipped_override, height_override) = match placement {
3642 Some(ContextMenuPlacement::Above) => {
3643 (true, cmp::min(available_above, min_height))
3644 }
3645 Some(ContextMenuPlacement::Below) => {
3646 (false, cmp::min(available_below, min_height))
3647 }
3648 None => {
3649 if available_below > min_height {
3650 (false, min_height)
3651 } else if available_above > min_height {
3652 (true, min_height)
3653 } else if available_above > available_below {
3654 (true, available_above)
3655 } else {
3656 (false, available_below)
3657 }
3658 }
3659 };
3660 y_flipped = y_flipped_override;
3661 height = height_override;
3662 }
3663
3664 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3665
3666 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3667 // for very narrow windows.
3668 let popovers =
3669 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3670 if popovers.is_empty() {
3671 return None;
3672 }
3673
3674 let max_width = popovers
3675 .iter()
3676 .map(|(_, _, size)| size.width)
3677 .max()
3678 .unwrap_or_default();
3679
3680 let mut current_position = gpui::Point {
3681 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3682 // overflow. Include space for the scrollbar.
3683 x: target_position
3684 .x
3685 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3686 y: if y_flipped {
3687 bottom_y_when_flipped
3688 } else {
3689 target_position.y
3690 },
3691 };
3692
3693 let mut laid_out_popovers = popovers
3694 .into_iter()
3695 .map(|(popover_type, element, size)| {
3696 if y_flipped {
3697 current_position.y -= size.height;
3698 }
3699 let position = current_position;
3700 window.defer_draw(element, current_position, 1);
3701 if !y_flipped {
3702 current_position.y += size.height + MENU_GAP;
3703 } else {
3704 current_position.y -= MENU_GAP;
3705 }
3706 (popover_type, Bounds::new(position, size))
3707 })
3708 .collect::<Vec<_>>();
3709
3710 if y_flipped {
3711 laid_out_popovers.reverse();
3712 }
3713
3714 Some((laid_out_popovers, y_flipped))
3715 })
3716 }
3717
3718 fn layout_context_menu_aside(
3719 &self,
3720 y_flipped: bool,
3721 menu_bounds: Bounds<Pixels>,
3722 target_bounds: Bounds<Pixels>,
3723 max_target_bounds: Bounds<Pixels>,
3724 max_height: Pixels,
3725 must_place_above_or_below: bool,
3726 text_hitbox: &Hitbox,
3727 viewport_bounds: Bounds<Pixels>,
3728 window: &mut Window,
3729 cx: &mut App,
3730 ) {
3731 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3732 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3733 && !must_place_above_or_below
3734 {
3735 let max_width = cmp::min(
3736 available_within_viewport.right - px(1.),
3737 MENU_ASIDE_MAX_WIDTH,
3738 );
3739 let Some(mut aside) = self.render_context_menu_aside(
3740 size(max_width, max_height - POPOVER_Y_PADDING),
3741 window,
3742 cx,
3743 ) else {
3744 return;
3745 };
3746 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3747 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3748 Some((aside, right_position))
3749 } else {
3750 let max_size = size(
3751 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3752 // won't be needed here.
3753 cmp::min(
3754 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3755 viewport_bounds.right(),
3756 ),
3757 cmp::min(
3758 max_height,
3759 cmp::max(
3760 available_within_viewport.top,
3761 available_within_viewport.bottom,
3762 ),
3763 ) - POPOVER_Y_PADDING,
3764 );
3765 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3766 return;
3767 };
3768 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3769
3770 let top_position = point(
3771 menu_bounds.origin.x,
3772 target_bounds.top() - actual_size.height,
3773 );
3774 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3775
3776 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3777 // Prefer to fit on the same side of the line as the menu, then on the other side of
3778 // the line.
3779 if !y_flipped && wanted.height < available.bottom {
3780 Some(bottom_position)
3781 } else if !y_flipped && wanted.height < available.top {
3782 Some(top_position)
3783 } else if y_flipped && wanted.height < available.top {
3784 Some(top_position)
3785 } else if y_flipped && wanted.height < available.bottom {
3786 Some(bottom_position)
3787 } else {
3788 None
3789 }
3790 };
3791
3792 // Prefer choosing a direction using max sizes rather than actual size for stability.
3793 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3794 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3795 let aside_position = fit_within(available_within_text, wanted)
3796 // Fallback: fit max size in window.
3797 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3798 // Fallback: fit actual size in window.
3799 .or_else(|| fit_within(available_within_viewport, actual_size));
3800
3801 aside_position.map(|position| (aside, position))
3802 };
3803
3804 // Skip drawing if it doesn't fit anywhere.
3805 if let Some((aside, position)) = positioned_aside {
3806 window.defer_draw(aside, position, 2);
3807 }
3808 }
3809
3810 fn render_context_menu(
3811 &self,
3812 line_height: Pixels,
3813 height: Pixels,
3814 window: &mut Window,
3815 cx: &mut App,
3816 ) -> Option<AnyElement> {
3817 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3818 self.editor.update(cx, |editor, cx| {
3819 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
3820 })
3821 }
3822
3823 fn render_context_menu_aside(
3824 &self,
3825 max_size: Size<Pixels>,
3826 window: &mut Window,
3827 cx: &mut App,
3828 ) -> Option<AnyElement> {
3829 if max_size.width < px(100.) || max_size.height < px(12.) {
3830 None
3831 } else {
3832 self.editor.update(cx, |editor, cx| {
3833 editor.render_context_menu_aside(max_size, window, cx)
3834 })
3835 }
3836 }
3837
3838 fn layout_mouse_context_menu(
3839 &self,
3840 editor_snapshot: &EditorSnapshot,
3841 visible_range: Range<DisplayRow>,
3842 content_origin: gpui::Point<Pixels>,
3843 window: &mut Window,
3844 cx: &mut App,
3845 ) -> Option<AnyElement> {
3846 let position = self.editor.update(cx, |editor, _cx| {
3847 let visible_start_point = editor.display_to_pixel_point(
3848 DisplayPoint::new(visible_range.start, 0),
3849 editor_snapshot,
3850 window,
3851 )?;
3852 let visible_end_point = editor.display_to_pixel_point(
3853 DisplayPoint::new(visible_range.end, 0),
3854 editor_snapshot,
3855 window,
3856 )?;
3857
3858 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3859 let (source_display_point, position) = match mouse_context_menu.position {
3860 MenuPosition::PinnedToScreen(point) => (None, point),
3861 MenuPosition::PinnedToEditor { source, offset } => {
3862 let source_display_point = source.to_display_point(editor_snapshot);
3863 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3864 let position = content_origin + source_point + offset;
3865 (Some(source_display_point), position)
3866 }
3867 };
3868
3869 let source_included = source_display_point.map_or(true, |source_display_point| {
3870 visible_range
3871 .to_inclusive()
3872 .contains(&source_display_point.row())
3873 });
3874 let position_included =
3875 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3876 if !source_included && !position_included {
3877 None
3878 } else {
3879 Some(position)
3880 }
3881 })?;
3882
3883 let text_style = TextStyleRefinement {
3884 line_height: Some(DefiniteLength::Fraction(
3885 BufferLineHeight::Comfortable.value(),
3886 )),
3887 ..Default::default()
3888 };
3889 window.with_text_style(Some(text_style), |window| {
3890 let mut element = self.editor.update(cx, |editor, _| {
3891 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3892 let context_menu = mouse_context_menu.context_menu.clone();
3893
3894 Some(
3895 deferred(
3896 anchored()
3897 .position(position)
3898 .child(context_menu)
3899 .anchor(Corner::TopLeft)
3900 .snap_to_window_with_margin(px(8.)),
3901 )
3902 .with_priority(1)
3903 .into_any(),
3904 )
3905 })?;
3906
3907 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3908 Some(element)
3909 })
3910 }
3911
3912 fn layout_hover_popovers(
3913 &self,
3914 snapshot: &EditorSnapshot,
3915 hitbox: &Hitbox,
3916 text_hitbox: &Hitbox,
3917 visible_display_row_range: Range<DisplayRow>,
3918 content_origin: gpui::Point<Pixels>,
3919 scroll_pixel_position: gpui::Point<Pixels>,
3920 line_layouts: &[LineWithInvisibles],
3921 line_height: Pixels,
3922 em_width: Pixels,
3923 window: &mut Window,
3924 cx: &mut App,
3925 ) {
3926 struct MeasuredHoverPopover {
3927 element: AnyElement,
3928 size: Size<Pixels>,
3929 horizontal_offset: Pixels,
3930 }
3931
3932 let max_size = size(
3933 (120. * em_width) // Default size
3934 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3935 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3936 (16. * line_height) // Default size
3937 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3938 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3939 );
3940
3941 let hover_popovers = self.editor.update(cx, |editor, cx| {
3942 editor.hover_state.render(
3943 snapshot,
3944 visible_display_row_range.clone(),
3945 max_size,
3946 window,
3947 cx,
3948 )
3949 });
3950 let Some((position, hover_popovers)) = hover_popovers else {
3951 return;
3952 };
3953
3954 // This is safe because we check on layout whether the required row is available
3955 let hovered_row_layout =
3956 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3957
3958 // Compute Hovered Point
3959 let x =
3960 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3961 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3962 let hovered_point = content_origin + point(x, y);
3963
3964 let mut overall_height = Pixels::ZERO;
3965 let mut measured_hover_popovers = Vec::new();
3966 for mut hover_popover in hover_popovers {
3967 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3968 let horizontal_offset =
3969 (text_hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
3970 .min(Pixels::ZERO);
3971
3972 overall_height += HOVER_POPOVER_GAP + size.height;
3973
3974 measured_hover_popovers.push(MeasuredHoverPopover {
3975 element: hover_popover,
3976 size,
3977 horizontal_offset,
3978 });
3979 }
3980 overall_height += HOVER_POPOVER_GAP;
3981
3982 fn draw_occluder(
3983 width: Pixels,
3984 origin: gpui::Point<Pixels>,
3985 window: &mut Window,
3986 cx: &mut App,
3987 ) {
3988 let mut occlusion = div()
3989 .size_full()
3990 .occlude()
3991 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3992 .into_any_element();
3993 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3994 window.defer_draw(occlusion, origin, 2);
3995 }
3996
3997 if hovered_point.y > overall_height {
3998 // There is enough space above. Render popovers above the hovered point
3999 let mut current_y = hovered_point.y;
4000 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4001 let size = popover.size;
4002 let popover_origin = point(
4003 hovered_point.x + popover.horizontal_offset,
4004 current_y - size.height,
4005 );
4006
4007 window.defer_draw(popover.element, popover_origin, 2);
4008 if position != itertools::Position::Last {
4009 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4010 draw_occluder(size.width, origin, window, cx);
4011 }
4012
4013 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4014 }
4015 } else {
4016 // There is not enough space above. Render popovers below the hovered point
4017 let mut current_y = hovered_point.y + line_height;
4018 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4019 let size = popover.size;
4020 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4021
4022 window.defer_draw(popover.element, popover_origin, 2);
4023 if position != itertools::Position::Last {
4024 let origin = point(popover_origin.x, popover_origin.y + size.height);
4025 draw_occluder(size.width, origin, window, cx);
4026 }
4027
4028 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4029 }
4030 }
4031 }
4032
4033 fn layout_diff_hunk_controls(
4034 &self,
4035 row_range: Range<DisplayRow>,
4036 row_infos: &[RowInfo],
4037 text_hitbox: &Hitbox,
4038 position_map: &PositionMap,
4039 newest_cursor_position: Option<DisplayPoint>,
4040 line_height: Pixels,
4041 scroll_pixel_position: gpui::Point<Pixels>,
4042 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4043 editor: Entity<Editor>,
4044 window: &mut Window,
4045 cx: &mut App,
4046 ) -> Vec<AnyElement> {
4047 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4048 let point_for_position = position_map.point_for_position(window.mouse_position());
4049
4050 let mut controls = vec![];
4051
4052 let active_positions = [
4053 Some(point_for_position.previous_valid),
4054 newest_cursor_position,
4055 ];
4056
4057 for (hunk, _) in display_hunks {
4058 if let DisplayDiffHunk::Unfolded {
4059 display_row_range,
4060 multi_buffer_range,
4061 status,
4062 is_created_file,
4063 ..
4064 } = &hunk
4065 {
4066 if display_row_range.start < row_range.start
4067 || display_row_range.start >= row_range.end
4068 {
4069 continue;
4070 }
4071 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4072 if row_infos[row_ix].diff_status.is_none() {
4073 continue;
4074 }
4075 if row_infos[row_ix]
4076 .diff_status
4077 .is_some_and(|status| status.is_added())
4078 && !status.is_added()
4079 {
4080 continue;
4081 }
4082 if active_positions
4083 .iter()
4084 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4085 {
4086 let y = display_row_range.start.as_f32() * line_height
4087 + text_hitbox.bounds.top()
4088 - scroll_pixel_position.y;
4089
4090 let mut element = render_diff_hunk_controls(
4091 display_row_range.start.0,
4092 status,
4093 multi_buffer_range.clone(),
4094 *is_created_file,
4095 line_height,
4096 &editor,
4097 window,
4098 cx,
4099 );
4100 let size =
4101 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4102
4103 let x = text_hitbox.bounds.right()
4104 - self.style.scrollbar_width
4105 - px(10.)
4106 - size.width;
4107
4108 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4109 element.prepaint(window, cx)
4110 });
4111 controls.push(element);
4112 }
4113 }
4114 }
4115
4116 controls
4117 }
4118
4119 fn layout_signature_help(
4120 &self,
4121 hitbox: &Hitbox,
4122 text_hitbox: &Hitbox,
4123 content_origin: gpui::Point<Pixels>,
4124 scroll_pixel_position: gpui::Point<Pixels>,
4125 newest_selection_head: Option<DisplayPoint>,
4126 start_row: DisplayRow,
4127 line_layouts: &[LineWithInvisibles],
4128 line_height: Pixels,
4129 em_width: Pixels,
4130 window: &mut Window,
4131 cx: &mut App,
4132 ) {
4133 if !self.editor.focus_handle(cx).is_focused(window) {
4134 return;
4135 }
4136 let Some(newest_selection_head) = newest_selection_head else {
4137 return;
4138 };
4139
4140 let max_size = size(
4141 (120. * em_width) // Default size
4142 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4143 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4144 (16. * line_height) // Default size
4145 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4146 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4147 );
4148
4149 let maybe_element = self.editor.update(cx, |editor, cx| {
4150 if let Some(popover) = editor.signature_help_state.popover_mut() {
4151 let element = popover.render(max_size, cx);
4152 Some(element)
4153 } else {
4154 None
4155 }
4156 });
4157 let Some(mut element) = maybe_element else {
4158 return;
4159 };
4160
4161 let selection_row = newest_selection_head.row();
4162 let Some(cursor_row_layout) = (selection_row >= start_row)
4163 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
4164 .flatten()
4165 else {
4166 return;
4167 };
4168
4169 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4170 - scroll_pixel_position.x;
4171 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
4172 let target_point = content_origin + point(target_x, target_y);
4173
4174 let actual_size = element.layout_as_root(max_size.into(), window, cx);
4175 let overall_height = actual_size.height + HOVER_POPOVER_GAP;
4176
4177 let popover_origin = if target_point.y > overall_height {
4178 point(target_point.x, target_point.y - actual_size.height)
4179 } else {
4180 point(
4181 target_point.x,
4182 target_point.y + line_height + HOVER_POPOVER_GAP,
4183 )
4184 };
4185
4186 let horizontal_offset = (text_hitbox.top_right().x
4187 - POPOVER_RIGHT_OFFSET
4188 - (popover_origin.x + actual_size.width))
4189 .min(Pixels::ZERO);
4190 let final_origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
4191
4192 window.defer_draw(element, final_origin, 2);
4193 }
4194
4195 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4196 window.paint_layer(layout.hitbox.bounds, |window| {
4197 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4198 let gutter_bg = cx.theme().colors().editor_gutter_background;
4199 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4200 window.paint_quad(fill(
4201 layout.position_map.text_hitbox.bounds,
4202 self.style.background,
4203 ));
4204
4205 if let EditorMode::Full {
4206 show_active_line_background,
4207 ..
4208 } = layout.mode
4209 {
4210 let mut active_rows = layout.active_rows.iter().peekable();
4211 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4212 let mut end_row = start_row.0;
4213 while active_rows
4214 .peek()
4215 .map_or(false, |(active_row, has_selection)| {
4216 active_row.0 == end_row + 1
4217 && has_selection.selection == contains_non_empty_selection.selection
4218 })
4219 {
4220 active_rows.next().unwrap();
4221 end_row += 1;
4222 }
4223
4224 if show_active_line_background && !contains_non_empty_selection.selection {
4225 let highlight_h_range =
4226 match layout.position_map.snapshot.current_line_highlight {
4227 CurrentLineHighlight::Gutter => Some(Range {
4228 start: layout.hitbox.left(),
4229 end: layout.gutter_hitbox.right(),
4230 }),
4231 CurrentLineHighlight::Line => Some(Range {
4232 start: layout.position_map.text_hitbox.bounds.left(),
4233 end: layout.position_map.text_hitbox.bounds.right(),
4234 }),
4235 CurrentLineHighlight::All => Some(Range {
4236 start: layout.hitbox.left(),
4237 end: layout.hitbox.right(),
4238 }),
4239 CurrentLineHighlight::None => None,
4240 };
4241 if let Some(range) = highlight_h_range {
4242 let active_line_bg = cx.theme().colors().editor_active_line_background;
4243 let bounds = Bounds {
4244 origin: point(
4245 range.start,
4246 layout.hitbox.origin.y
4247 + (start_row.as_f32() - scroll_top)
4248 * layout.position_map.line_height,
4249 ),
4250 size: size(
4251 range.end - range.start,
4252 layout.position_map.line_height
4253 * (end_row - start_row.0 + 1) as f32,
4254 ),
4255 };
4256 window.paint_quad(fill(bounds, active_line_bg));
4257 }
4258 }
4259 }
4260
4261 let mut paint_highlight = |highlight_row_start: DisplayRow,
4262 highlight_row_end: DisplayRow,
4263 highlight: crate::LineHighlight,
4264 edges| {
4265 let origin = point(
4266 layout.hitbox.origin.x,
4267 layout.hitbox.origin.y
4268 + (highlight_row_start.as_f32() - scroll_top)
4269 * layout.position_map.line_height,
4270 );
4271 let size = size(
4272 layout.hitbox.size.width,
4273 layout.position_map.line_height
4274 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4275 );
4276 let mut quad = fill(Bounds { origin, size }, highlight.background);
4277 if let Some(border_color) = highlight.border {
4278 quad.border_color = border_color;
4279 quad.border_widths = edges
4280 }
4281 window.paint_quad(quad);
4282 };
4283
4284 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4285 None;
4286 for (&new_row, &new_background) in &layout.highlighted_rows {
4287 match &mut current_paint {
4288 &mut Some((current_background, ref mut current_range, mut edges)) => {
4289 let new_range_started = current_background != new_background
4290 || current_range.end.next_row() != new_row;
4291 if new_range_started {
4292 if current_range.end.next_row() == new_row {
4293 edges.bottom = px(0.);
4294 };
4295 paint_highlight(
4296 current_range.start,
4297 current_range.end,
4298 current_background,
4299 edges,
4300 );
4301 let edges = Edges {
4302 top: if current_range.end.next_row() != new_row {
4303 px(1.)
4304 } else {
4305 px(0.)
4306 },
4307 bottom: px(1.),
4308 ..Default::default()
4309 };
4310 current_paint = Some((new_background, new_row..new_row, edges));
4311 continue;
4312 } else {
4313 current_range.end = current_range.end.next_row();
4314 }
4315 }
4316 None => {
4317 let edges = Edges {
4318 top: px(1.),
4319 bottom: px(1.),
4320 ..Default::default()
4321 };
4322 current_paint = Some((new_background, new_row..new_row, edges))
4323 }
4324 };
4325 }
4326 if let Some((color, range, edges)) = current_paint {
4327 paint_highlight(range.start, range.end, color, edges);
4328 }
4329
4330 let scroll_left =
4331 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4332
4333 for (wrap_position, active) in layout.wrap_guides.iter() {
4334 let x = (layout.position_map.text_hitbox.origin.x
4335 + *wrap_position
4336 + layout.position_map.em_width / 2.)
4337 - scroll_left;
4338
4339 let show_scrollbars = layout
4340 .scrollbars_layout
4341 .as_ref()
4342 .map_or(false, |layout| layout.visible);
4343
4344 if x < layout.position_map.text_hitbox.origin.x
4345 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4346 {
4347 continue;
4348 }
4349
4350 let color = if *active {
4351 cx.theme().colors().editor_active_wrap_guide
4352 } else {
4353 cx.theme().colors().editor_wrap_guide
4354 };
4355 window.paint_quad(fill(
4356 Bounds {
4357 origin: point(x, layout.position_map.text_hitbox.origin.y),
4358 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4359 },
4360 color,
4361 ));
4362 }
4363 }
4364 })
4365 }
4366
4367 fn paint_indent_guides(
4368 &mut self,
4369 layout: &mut EditorLayout,
4370 window: &mut Window,
4371 cx: &mut App,
4372 ) {
4373 let Some(indent_guides) = &layout.indent_guides else {
4374 return;
4375 };
4376
4377 let faded_color = |color: Hsla, alpha: f32| {
4378 let mut faded = color;
4379 faded.a = alpha;
4380 faded
4381 };
4382
4383 for indent_guide in indent_guides {
4384 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4385 let settings = indent_guide.settings;
4386
4387 // TODO fixed for now, expose them through themes later
4388 const INDENT_AWARE_ALPHA: f32 = 0.2;
4389 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4390 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4391 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4392
4393 let line_color = match (settings.coloring, indent_guide.active) {
4394 (IndentGuideColoring::Disabled, _) => None,
4395 (IndentGuideColoring::Fixed, false) => {
4396 Some(cx.theme().colors().editor_indent_guide)
4397 }
4398 (IndentGuideColoring::Fixed, true) => {
4399 Some(cx.theme().colors().editor_indent_guide_active)
4400 }
4401 (IndentGuideColoring::IndentAware, false) => {
4402 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4403 }
4404 (IndentGuideColoring::IndentAware, true) => {
4405 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4406 }
4407 };
4408
4409 let background_color = match (settings.background_coloring, indent_guide.active) {
4410 (IndentGuideBackgroundColoring::Disabled, _) => None,
4411 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4412 indent_accent_colors,
4413 INDENT_AWARE_BACKGROUND_ALPHA,
4414 )),
4415 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4416 indent_accent_colors,
4417 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4418 )),
4419 };
4420
4421 let requested_line_width = if indent_guide.active {
4422 settings.active_line_width
4423 } else {
4424 settings.line_width
4425 }
4426 .clamp(1, 10);
4427 let mut line_indicator_width = 0.;
4428 if let Some(color) = line_color {
4429 window.paint_quad(fill(
4430 Bounds {
4431 origin: indent_guide.origin,
4432 size: size(px(requested_line_width as f32), indent_guide.length),
4433 },
4434 color,
4435 ));
4436 line_indicator_width = requested_line_width as f32;
4437 }
4438
4439 if let Some(color) = background_color {
4440 let width = indent_guide.single_indent_width - px(line_indicator_width);
4441 window.paint_quad(fill(
4442 Bounds {
4443 origin: point(
4444 indent_guide.origin.x + px(line_indicator_width),
4445 indent_guide.origin.y,
4446 ),
4447 size: size(width, indent_guide.length),
4448 },
4449 color,
4450 ));
4451 }
4452 }
4453 }
4454
4455 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4456 let is_singleton = self.editor.read(cx).is_singleton(cx);
4457
4458 let line_height = layout.position_map.line_height;
4459 window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox));
4460
4461 for LineNumberLayout {
4462 shaped_line,
4463 hitbox,
4464 } in layout.line_numbers.values()
4465 {
4466 let Some(hitbox) = hitbox else {
4467 continue;
4468 };
4469
4470 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4471 let color = cx.theme().colors().editor_hover_line_number;
4472
4473 let Some(line) = self
4474 .shape_line_number(shaped_line.text.clone(), color, window)
4475 .log_err()
4476 else {
4477 continue;
4478 };
4479
4480 line.paint(hitbox.origin, line_height, window, cx).log_err()
4481 } else {
4482 shaped_line
4483 .paint(hitbox.origin, line_height, window, cx)
4484 .log_err()
4485 }) else {
4486 continue;
4487 };
4488
4489 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4490 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4491 if is_singleton {
4492 window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox));
4493 } else {
4494 window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox));
4495 }
4496 }
4497 }
4498
4499 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4500 if layout.display_hunks.is_empty() {
4501 return;
4502 }
4503
4504 let line_height = layout.position_map.line_height;
4505 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4506 for (hunk, hitbox) in &layout.display_hunks {
4507 let hunk_to_paint = match hunk {
4508 DisplayDiffHunk::Folded { .. } => {
4509 let hunk_bounds = Self::diff_hunk_bounds(
4510 &layout.position_map.snapshot,
4511 line_height,
4512 layout.gutter_hitbox.bounds,
4513 &hunk,
4514 );
4515 Some((
4516 hunk_bounds,
4517 cx.theme().colors().version_control_modified,
4518 Corners::all(px(0.)),
4519 DiffHunkStatus::modified_none(),
4520 ))
4521 }
4522 DisplayDiffHunk::Unfolded {
4523 status,
4524 display_row_range,
4525 ..
4526 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4527 DiffHunkStatusKind::Added => (
4528 hunk_hitbox.bounds,
4529 cx.theme().colors().version_control_added,
4530 Corners::all(px(0.)),
4531 *status,
4532 ),
4533 DiffHunkStatusKind::Modified => (
4534 hunk_hitbox.bounds,
4535 cx.theme().colors().version_control_modified,
4536 Corners::all(px(0.)),
4537 *status,
4538 ),
4539 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4540 hunk_hitbox.bounds,
4541 cx.theme().colors().version_control_deleted,
4542 Corners::all(px(0.)),
4543 *status,
4544 ),
4545 DiffHunkStatusKind::Deleted => (
4546 Bounds::new(
4547 point(
4548 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4549 hunk_hitbox.origin.y,
4550 ),
4551 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4552 ),
4553 cx.theme().colors().version_control_deleted,
4554 Corners::all(1. * line_height),
4555 *status,
4556 ),
4557 }),
4558 };
4559
4560 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4561 // Flatten the background color with the editor color to prevent
4562 // elements below transparent hunks from showing through
4563 let flattened_background_color = cx
4564 .theme()
4565 .colors()
4566 .editor_background
4567 .blend(background_color);
4568
4569 if !Self::diff_hunk_hollow(status, cx) {
4570 window.paint_quad(quad(
4571 hunk_bounds,
4572 corner_radii,
4573 flattened_background_color,
4574 Edges::default(),
4575 transparent_black(),
4576 BorderStyle::default(),
4577 ));
4578 } else {
4579 let flattened_unstaged_background_color = cx
4580 .theme()
4581 .colors()
4582 .editor_background
4583 .blend(background_color.opacity(0.3));
4584
4585 window.paint_quad(quad(
4586 hunk_bounds,
4587 corner_radii,
4588 flattened_unstaged_background_color,
4589 Edges::all(Pixels(1.0)),
4590 flattened_background_color,
4591 BorderStyle::Solid,
4592 ));
4593 }
4594 }
4595 }
4596 });
4597 }
4598
4599 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4600 (0.275 * line_height).floor()
4601 }
4602
4603 fn diff_hunk_bounds(
4604 snapshot: &EditorSnapshot,
4605 line_height: Pixels,
4606 gutter_bounds: Bounds<Pixels>,
4607 hunk: &DisplayDiffHunk,
4608 ) -> Bounds<Pixels> {
4609 let scroll_position = snapshot.scroll_position();
4610 let scroll_top = scroll_position.y * line_height;
4611 let gutter_strip_width = Self::gutter_strip_width(line_height);
4612
4613 match hunk {
4614 DisplayDiffHunk::Folded { display_row, .. } => {
4615 let start_y = display_row.as_f32() * line_height - scroll_top;
4616 let end_y = start_y + line_height;
4617 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4618 let highlight_size = size(gutter_strip_width, end_y - start_y);
4619 Bounds::new(highlight_origin, highlight_size)
4620 }
4621 DisplayDiffHunk::Unfolded {
4622 display_row_range,
4623 status,
4624 ..
4625 } => {
4626 if status.is_deleted() && display_row_range.is_empty() {
4627 let row = display_row_range.start;
4628
4629 let offset = line_height / 2.;
4630 let start_y = row.as_f32() * line_height - offset - scroll_top;
4631 let end_y = start_y + line_height;
4632
4633 let width = (0.35 * line_height).floor();
4634 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4635 let highlight_size = size(width, end_y - start_y);
4636 Bounds::new(highlight_origin, highlight_size)
4637 } else {
4638 let start_row = display_row_range.start;
4639 let end_row = display_row_range.end;
4640 // If we're in a multibuffer, row range span might include an
4641 // excerpt header, so if we were to draw the marker straight away,
4642 // the hunk might include the rows of that header.
4643 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4644 // Instead, we simply check whether the range we're dealing with includes
4645 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4646 let end_row_in_current_excerpt = snapshot
4647 .blocks_in_range(start_row..end_row)
4648 .find_map(|(start_row, block)| {
4649 if matches!(block, Block::ExcerptBoundary { .. }) {
4650 Some(start_row)
4651 } else {
4652 None
4653 }
4654 })
4655 .unwrap_or(end_row);
4656
4657 let start_y = start_row.as_f32() * line_height - scroll_top;
4658 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4659
4660 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4661 let highlight_size = size(gutter_strip_width, end_y - start_y);
4662 Bounds::new(highlight_origin, highlight_size)
4663 }
4664 }
4665 }
4666 }
4667
4668 fn paint_gutter_indicators(
4669 &self,
4670 layout: &mut EditorLayout,
4671 window: &mut Window,
4672 cx: &mut App,
4673 ) {
4674 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4675 window.with_element_namespace("crease_toggles", |window| {
4676 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4677 crease_toggle.paint(window, cx);
4678 }
4679 });
4680
4681 window.with_element_namespace("expand_toggles", |window| {
4682 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4683 expand_toggle.paint(window, cx);
4684 }
4685 });
4686
4687 for breakpoint in layout.breakpoints.iter_mut() {
4688 breakpoint.paint(window, cx);
4689 }
4690
4691 for test_indicator in layout.test_indicators.iter_mut() {
4692 test_indicator.paint(window, cx);
4693 }
4694
4695 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4696 indicator.paint(window, cx);
4697 }
4698 });
4699 }
4700
4701 fn paint_gutter_highlights(
4702 &self,
4703 layout: &mut EditorLayout,
4704 window: &mut Window,
4705 cx: &mut App,
4706 ) {
4707 for (_, hunk_hitbox) in &layout.display_hunks {
4708 if let Some(hunk_hitbox) = hunk_hitbox {
4709 if !self
4710 .editor
4711 .read(cx)
4712 .buffer()
4713 .read(cx)
4714 .all_diff_hunks_expanded()
4715 {
4716 window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox));
4717 }
4718 }
4719 }
4720
4721 let show_git_gutter = layout
4722 .position_map
4723 .snapshot
4724 .show_git_diff_gutter
4725 .unwrap_or_else(|| {
4726 matches!(
4727 ProjectSettings::get_global(cx).git.git_gutter,
4728 Some(GitGutterSetting::TrackedFiles)
4729 )
4730 });
4731 if show_git_gutter {
4732 Self::paint_gutter_diff_hunks(layout, window, cx)
4733 }
4734
4735 let highlight_width = 0.275 * layout.position_map.line_height;
4736 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4737 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4738 for (range, color) in &layout.highlighted_gutter_ranges {
4739 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4740 layout.visible_display_row_range.start - DisplayRow(1)
4741 } else {
4742 range.start.row()
4743 };
4744 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4745 layout.visible_display_row_range.end + DisplayRow(1)
4746 } else {
4747 range.end.row()
4748 };
4749
4750 let start_y = layout.gutter_hitbox.top()
4751 + start_row.0 as f32 * layout.position_map.line_height
4752 - layout.position_map.scroll_pixel_position.y;
4753 let end_y = layout.gutter_hitbox.top()
4754 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4755 - layout.position_map.scroll_pixel_position.y;
4756 let bounds = Bounds::from_corners(
4757 point(layout.gutter_hitbox.left(), start_y),
4758 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4759 );
4760 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4761 }
4762 });
4763 }
4764
4765 fn paint_blamed_display_rows(
4766 &self,
4767 layout: &mut EditorLayout,
4768 window: &mut Window,
4769 cx: &mut App,
4770 ) {
4771 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4772 return;
4773 };
4774
4775 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4776 for mut blame_element in blamed_display_rows.into_iter() {
4777 blame_element.paint(window, cx);
4778 }
4779 })
4780 }
4781
4782 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4783 window.with_content_mask(
4784 Some(ContentMask {
4785 bounds: layout.position_map.text_hitbox.bounds,
4786 }),
4787 |window| {
4788 let editor = self.editor.read(cx);
4789 if editor.mouse_cursor_hidden {
4790 window.set_cursor_style(CursorStyle::None, None);
4791 } else if editor
4792 .hovered_link_state
4793 .as_ref()
4794 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4795 {
4796 window.set_cursor_style(
4797 CursorStyle::PointingHand,
4798 Some(&layout.position_map.text_hitbox),
4799 );
4800 } else {
4801 window.set_cursor_style(
4802 CursorStyle::IBeam,
4803 Some(&layout.position_map.text_hitbox),
4804 );
4805 };
4806
4807 self.paint_lines_background(layout, window, cx);
4808 let invisible_display_ranges = self.paint_highlights(layout, window);
4809 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4810 self.paint_redactions(layout, window);
4811 self.paint_cursors(layout, window, cx);
4812 self.paint_inline_diagnostics(layout, window, cx);
4813 self.paint_inline_blame(layout, window, cx);
4814 self.paint_diff_hunk_controls(layout, window, cx);
4815 window.with_element_namespace("crease_trailers", |window| {
4816 for trailer in layout.crease_trailers.iter_mut().flatten() {
4817 trailer.element.paint(window, cx);
4818 }
4819 });
4820 },
4821 )
4822 }
4823
4824 fn paint_highlights(
4825 &mut self,
4826 layout: &mut EditorLayout,
4827 window: &mut Window,
4828 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4829 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4830 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4831 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4832 for (range, color) in &layout.highlighted_ranges {
4833 self.paint_highlighted_range(
4834 range.clone(),
4835 *color,
4836 Pixels::ZERO,
4837 line_end_overshoot,
4838 layout,
4839 window,
4840 );
4841 }
4842
4843 let corner_radius = 0.15 * layout.position_map.line_height;
4844
4845 for (player_color, selections) in &layout.selections {
4846 for selection in selections.iter() {
4847 self.paint_highlighted_range(
4848 selection.range.clone(),
4849 player_color.selection,
4850 corner_radius,
4851 corner_radius * 2.,
4852 layout,
4853 window,
4854 );
4855
4856 if selection.is_local && !selection.range.is_empty() {
4857 invisible_display_ranges.push(selection.range.clone());
4858 }
4859 }
4860 }
4861 invisible_display_ranges
4862 })
4863 }
4864
4865 fn paint_lines(
4866 &mut self,
4867 invisible_display_ranges: &[Range<DisplayPoint>],
4868 layout: &mut EditorLayout,
4869 window: &mut Window,
4870 cx: &mut App,
4871 ) {
4872 let whitespace_setting = self
4873 .editor
4874 .read(cx)
4875 .buffer
4876 .read(cx)
4877 .language_settings(cx)
4878 .show_whitespaces;
4879
4880 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4881 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4882 line_with_invisibles.draw(
4883 layout,
4884 row,
4885 layout.content_origin,
4886 whitespace_setting,
4887 invisible_display_ranges,
4888 window,
4889 cx,
4890 )
4891 }
4892
4893 for line_element in &mut layout.line_elements {
4894 line_element.paint(window, cx);
4895 }
4896 }
4897
4898 fn paint_lines_background(
4899 &mut self,
4900 layout: &mut EditorLayout,
4901 window: &mut Window,
4902 cx: &mut App,
4903 ) {
4904 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4905 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4906 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4907 }
4908 }
4909
4910 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4911 if layout.redacted_ranges.is_empty() {
4912 return;
4913 }
4914
4915 let line_end_overshoot = layout.line_end_overshoot();
4916
4917 // A softer than perfect black
4918 let redaction_color = gpui::rgb(0x0e1111);
4919
4920 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4921 for range in layout.redacted_ranges.iter() {
4922 self.paint_highlighted_range(
4923 range.clone(),
4924 redaction_color.into(),
4925 Pixels::ZERO,
4926 line_end_overshoot,
4927 layout,
4928 window,
4929 );
4930 }
4931 });
4932 }
4933
4934 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4935 for cursor in &mut layout.visible_cursors {
4936 cursor.paint(layout.content_origin, window, cx);
4937 }
4938 }
4939
4940 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4941 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
4942 return;
4943 };
4944
4945 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
4946 let hitbox = &scrollbar_layout.hitbox;
4947 let thumb_bounds = scrollbar_layout.thumb_bounds();
4948
4949 if scrollbars_layout.visible {
4950 let scrollbar_edges = match axis {
4951 ScrollbarAxis::Horizontal => Edges {
4952 top: Pixels::ZERO,
4953 right: Pixels::ZERO,
4954 bottom: Pixels::ZERO,
4955 left: Pixels::ZERO,
4956 },
4957 ScrollbarAxis::Vertical => Edges {
4958 top: Pixels::ZERO,
4959 right: Pixels::ZERO,
4960 bottom: Pixels::ZERO,
4961 left: ScrollbarLayout::BORDER_WIDTH,
4962 },
4963 };
4964
4965 window.paint_layer(hitbox.bounds, |window| {
4966 window.paint_quad(quad(
4967 hitbox.bounds,
4968 Corners::default(),
4969 cx.theme().colors().scrollbar_track_background,
4970 scrollbar_edges,
4971 cx.theme().colors().scrollbar_track_border,
4972 BorderStyle::Solid,
4973 ));
4974
4975 if axis == ScrollbarAxis::Vertical {
4976 let fast_markers =
4977 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4978 // Refresh slow scrollbar markers in the background. Below, we
4979 // paint whatever markers have already been computed.
4980 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4981
4982 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4983 for marker in markers.iter().chain(&fast_markers) {
4984 let mut marker = marker.clone();
4985 marker.bounds.origin += hitbox.origin;
4986 window.paint_quad(marker);
4987 }
4988 }
4989
4990 window.paint_quad(quad(
4991 thumb_bounds,
4992 Corners::default(),
4993 cx.theme().colors().scrollbar_thumb_background,
4994 scrollbar_edges,
4995 cx.theme().colors().scrollbar_thumb_border,
4996 BorderStyle::Solid,
4997 ));
4998 })
4999 }
5000 window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox));
5001 }
5002
5003 window.on_mouse_event({
5004 let editor = self.editor.clone();
5005 let scrollbars_layout = scrollbars_layout.clone();
5006
5007 let mut mouse_position = window.mouse_position();
5008 move |event: &MouseMoveEvent, phase, window, cx| {
5009 if phase == DispatchPhase::Capture {
5010 return;
5011 }
5012
5013 editor.update(cx, |editor, cx| {
5014 if let Some((scrollbar_layout, axis)) = event
5015 .pressed_button
5016 .filter(|button| *button == MouseButton::Left)
5017 .and(editor.scroll_manager.dragging_scrollbar_axis())
5018 .and_then(|axis| {
5019 scrollbars_layout
5020 .iter_scrollbars()
5021 .find(|(_, a)| *a == axis)
5022 })
5023 {
5024 let ScrollbarLayout {
5025 hitbox,
5026 text_unit_size,
5027 ..
5028 } = scrollbar_layout;
5029
5030 let old_position = mouse_position.along(axis);
5031 let new_position = event.position.along(axis);
5032 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
5033 .contains(&old_position)
5034 {
5035 let position = editor.scroll_position(cx).apply_along(axis, |p| {
5036 (p + (new_position - old_position) / *text_unit_size).max(0.)
5037 });
5038 editor.set_scroll_position(position, window, cx);
5039 }
5040 cx.stop_propagation();
5041 } else {
5042 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
5043 }
5044
5045 if scrollbars_layout.get_hovered_axis(window).is_some() {
5046 editor.scroll_manager.show_scrollbars(window, cx);
5047 }
5048
5049 mouse_position = event.position;
5050 })
5051 }
5052 });
5053
5054 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
5055 window.on_mouse_event({
5056 let editor = self.editor.clone();
5057 move |_: &MouseUpEvent, phase, _, cx| {
5058 if phase == DispatchPhase::Capture {
5059 return;
5060 }
5061
5062 editor.update(cx, |editor, cx| {
5063 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
5064 cx.stop_propagation();
5065 });
5066 }
5067 });
5068 } else {
5069 window.on_mouse_event({
5070 let editor = self.editor.clone();
5071 let scrollbars_layout = scrollbars_layout.clone();
5072
5073 move |event: &MouseDownEvent, phase, window, cx| {
5074 if phase == DispatchPhase::Capture {
5075 return;
5076 }
5077 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
5078 else {
5079 return;
5080 };
5081
5082 let ScrollbarLayout {
5083 hitbox,
5084 visible_range,
5085 text_unit_size,
5086 ..
5087 } = scrollbar_layout;
5088
5089 let thumb_bounds = scrollbar_layout.thumb_bounds();
5090
5091 editor.update(cx, |editor, cx| {
5092 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
5093
5094 let event_position = event.position.along(axis);
5095
5096 if event_position < thumb_bounds.origin.along(axis)
5097 || thumb_bounds.bottom_right().along(axis) < event_position
5098 {
5099 let center_position = ((event_position - hitbox.origin.along(axis))
5100 / *text_unit_size)
5101 .round() as u32;
5102 let start_position = center_position.saturating_sub(
5103 (visible_range.end - visible_range.start) as u32 / 2,
5104 );
5105
5106 let position = editor
5107 .scroll_position(cx)
5108 .apply_along(axis, |_| start_position as f32);
5109
5110 editor.set_scroll_position(position, window, cx);
5111 } else {
5112 editor.scroll_manager.show_scrollbars(window, cx);
5113 }
5114
5115 cx.stop_propagation();
5116 });
5117 }
5118 });
5119 }
5120 }
5121
5122 fn collect_fast_scrollbar_markers(
5123 &self,
5124 layout: &EditorLayout,
5125 scrollbar_layout: &ScrollbarLayout,
5126 cx: &mut App,
5127 ) -> Vec<PaintQuad> {
5128 const LIMIT: usize = 100;
5129 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5130 return vec![];
5131 }
5132 let cursor_ranges = layout
5133 .cursors
5134 .iter()
5135 .map(|(point, color)| ColoredRange {
5136 start: point.row(),
5137 end: point.row(),
5138 color: *color,
5139 })
5140 .collect_vec();
5141 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5142 }
5143
5144 fn refresh_slow_scrollbar_markers(
5145 &self,
5146 layout: &EditorLayout,
5147 scrollbar_layout: &ScrollbarLayout,
5148 window: &mut Window,
5149 cx: &mut App,
5150 ) {
5151 self.editor.update(cx, |editor, cx| {
5152 if !editor.is_singleton(cx)
5153 || !editor
5154 .scrollbar_marker_state
5155 .should_refresh(scrollbar_layout.hitbox.size)
5156 {
5157 return;
5158 }
5159
5160 let scrollbar_layout = scrollbar_layout.clone();
5161 let background_highlights = editor.background_highlights.clone();
5162 let snapshot = layout.position_map.snapshot.clone();
5163 let theme = cx.theme().clone();
5164 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5165
5166 editor.scrollbar_marker_state.dirty = false;
5167 editor.scrollbar_marker_state.pending_refresh =
5168 Some(cx.spawn_in(window, async move |editor, cx| {
5169 let scrollbar_size = scrollbar_layout.hitbox.size;
5170 let scrollbar_markers = cx
5171 .background_spawn(async move {
5172 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5173 let mut marker_quads = Vec::new();
5174 if scrollbar_settings.git_diff {
5175 let marker_row_ranges =
5176 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5177 let start_display_row =
5178 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5179 .to_display_point(&snapshot.display_snapshot)
5180 .row();
5181 let mut end_display_row =
5182 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5183 .to_display_point(&snapshot.display_snapshot)
5184 .row();
5185 if end_display_row != start_display_row {
5186 end_display_row.0 -= 1;
5187 }
5188 let color = match &hunk.status().kind {
5189 DiffHunkStatusKind::Added => {
5190 theme.colors().version_control_added
5191 }
5192 DiffHunkStatusKind::Modified => {
5193 theme.colors().version_control_modified
5194 }
5195 DiffHunkStatusKind::Deleted => {
5196 theme.colors().version_control_deleted
5197 }
5198 };
5199 ColoredRange {
5200 start: start_display_row,
5201 end: end_display_row,
5202 color,
5203 }
5204 });
5205
5206 marker_quads.extend(
5207 scrollbar_layout
5208 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5209 );
5210 }
5211
5212 for (background_highlight_id, (_, background_ranges)) in
5213 background_highlights.iter()
5214 {
5215 let is_search_highlights = *background_highlight_id
5216 == TypeId::of::<BufferSearchHighlights>();
5217 let is_text_highlights = *background_highlight_id
5218 == TypeId::of::<SelectedTextHighlight>();
5219 let is_symbol_occurrences = *background_highlight_id
5220 == TypeId::of::<DocumentHighlightRead>()
5221 || *background_highlight_id
5222 == TypeId::of::<DocumentHighlightWrite>();
5223 if (is_search_highlights && scrollbar_settings.search_results)
5224 || (is_text_highlights && scrollbar_settings.selected_text)
5225 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5226 {
5227 let mut color = theme.status().info;
5228 if is_symbol_occurrences {
5229 color.fade_out(0.5);
5230 }
5231 let marker_row_ranges = background_ranges.iter().map(|range| {
5232 let display_start = range
5233 .start
5234 .to_display_point(&snapshot.display_snapshot);
5235 let display_end =
5236 range.end.to_display_point(&snapshot.display_snapshot);
5237 ColoredRange {
5238 start: display_start.row(),
5239 end: display_end.row(),
5240 color,
5241 }
5242 });
5243 marker_quads.extend(
5244 scrollbar_layout
5245 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5246 );
5247 }
5248 }
5249
5250 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5251 let diagnostics = snapshot
5252 .buffer_snapshot
5253 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5254 // Don't show diagnostics the user doesn't care about
5255 .filter(|diagnostic| {
5256 match (
5257 scrollbar_settings.diagnostics,
5258 diagnostic.diagnostic.severity,
5259 ) {
5260 (ScrollbarDiagnostics::All, _) => true,
5261 (
5262 ScrollbarDiagnostics::Error,
5263 DiagnosticSeverity::ERROR,
5264 ) => true,
5265 (
5266 ScrollbarDiagnostics::Warning,
5267 DiagnosticSeverity::ERROR
5268 | DiagnosticSeverity::WARNING,
5269 ) => true,
5270 (
5271 ScrollbarDiagnostics::Information,
5272 DiagnosticSeverity::ERROR
5273 | DiagnosticSeverity::WARNING
5274 | DiagnosticSeverity::INFORMATION,
5275 ) => true,
5276 (_, _) => false,
5277 }
5278 })
5279 // We want to sort by severity, in order to paint the most severe diagnostics last.
5280 .sorted_by_key(|diagnostic| {
5281 std::cmp::Reverse(diagnostic.diagnostic.severity)
5282 });
5283
5284 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5285 let start_display = diagnostic
5286 .range
5287 .start
5288 .to_display_point(&snapshot.display_snapshot);
5289 let end_display = diagnostic
5290 .range
5291 .end
5292 .to_display_point(&snapshot.display_snapshot);
5293 let color = match diagnostic.diagnostic.severity {
5294 DiagnosticSeverity::ERROR => theme.status().error,
5295 DiagnosticSeverity::WARNING => theme.status().warning,
5296 DiagnosticSeverity::INFORMATION => theme.status().info,
5297 _ => theme.status().hint,
5298 };
5299 ColoredRange {
5300 start: start_display.row(),
5301 end: end_display.row(),
5302 color,
5303 }
5304 });
5305 marker_quads.extend(
5306 scrollbar_layout
5307 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5308 );
5309 }
5310
5311 Arc::from(marker_quads)
5312 })
5313 .await;
5314
5315 editor.update(cx, |editor, cx| {
5316 editor.scrollbar_marker_state.markers = scrollbar_markers;
5317 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5318 editor.scrollbar_marker_state.pending_refresh = None;
5319 cx.notify();
5320 })?;
5321
5322 Ok(())
5323 }));
5324 });
5325 }
5326
5327 fn paint_highlighted_range(
5328 &self,
5329 range: Range<DisplayPoint>,
5330 color: Hsla,
5331 corner_radius: Pixels,
5332 line_end_overshoot: Pixels,
5333 layout: &EditorLayout,
5334 window: &mut Window,
5335 ) {
5336 let start_row = layout.visible_display_row_range.start;
5337 let end_row = layout.visible_display_row_range.end;
5338 if range.start != range.end {
5339 let row_range = if range.end.column() == 0 {
5340 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5341 } else {
5342 cmp::max(range.start.row(), start_row)
5343 ..cmp::min(range.end.row().next_row(), end_row)
5344 };
5345
5346 let highlighted_range = HighlightedRange {
5347 color,
5348 line_height: layout.position_map.line_height,
5349 corner_radius,
5350 start_y: layout.content_origin.y
5351 + row_range.start.as_f32() * layout.position_map.line_height
5352 - layout.position_map.scroll_pixel_position.y,
5353 lines: row_range
5354 .iter_rows()
5355 .map(|row| {
5356 let line_layout =
5357 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5358 HighlightedRangeLine {
5359 start_x: if row == range.start.row() {
5360 layout.content_origin.x
5361 + line_layout.x_for_index(range.start.column() as usize)
5362 - layout.position_map.scroll_pixel_position.x
5363 } else {
5364 layout.content_origin.x
5365 - layout.position_map.scroll_pixel_position.x
5366 },
5367 end_x: if row == range.end.row() {
5368 layout.content_origin.x
5369 + line_layout.x_for_index(range.end.column() as usize)
5370 - layout.position_map.scroll_pixel_position.x
5371 } else {
5372 layout.content_origin.x + line_layout.width + line_end_overshoot
5373 - layout.position_map.scroll_pixel_position.x
5374 },
5375 }
5376 })
5377 .collect(),
5378 };
5379
5380 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5381 }
5382 }
5383
5384 fn paint_inline_diagnostics(
5385 &mut self,
5386 layout: &mut EditorLayout,
5387 window: &mut Window,
5388 cx: &mut App,
5389 ) {
5390 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5391 inline_diagnostic.1.paint(window, cx);
5392 }
5393 }
5394
5395 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5396 if let Some(mut inline_blame) = layout.inline_blame.take() {
5397 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5398 inline_blame.paint(window, cx);
5399 })
5400 }
5401 }
5402
5403 fn paint_diff_hunk_controls(
5404 &mut self,
5405 layout: &mut EditorLayout,
5406 window: &mut Window,
5407 cx: &mut App,
5408 ) {
5409 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5410 diff_hunk_control.paint(window, cx);
5411 }
5412 }
5413
5414 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5415 for mut block in layout.blocks.drain(..) {
5416 if block.overlaps_gutter {
5417 block.element.paint(window, cx);
5418 } else {
5419 let mut bounds = layout.hitbox.bounds;
5420 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
5421 window.with_content_mask(Some(ContentMask { bounds }), |window| {
5422 block.element.paint(window, cx);
5423 })
5424 }
5425 }
5426 }
5427
5428 fn paint_inline_completion_popover(
5429 &mut self,
5430 layout: &mut EditorLayout,
5431 window: &mut Window,
5432 cx: &mut App,
5433 ) {
5434 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5435 inline_completion_popover.paint(window, cx);
5436 }
5437 }
5438
5439 fn paint_mouse_context_menu(
5440 &mut self,
5441 layout: &mut EditorLayout,
5442 window: &mut Window,
5443 cx: &mut App,
5444 ) {
5445 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5446 mouse_context_menu.paint(window, cx);
5447 }
5448 }
5449
5450 fn paint_scroll_wheel_listener(
5451 &mut self,
5452 layout: &EditorLayout,
5453 window: &mut Window,
5454 cx: &mut App,
5455 ) {
5456 window.on_mouse_event({
5457 let position_map = layout.position_map.clone();
5458 let editor = self.editor.clone();
5459 let hitbox = layout.hitbox.clone();
5460 let mut delta = ScrollDelta::default();
5461
5462 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5463 // accidentally turn off their scrolling.
5464 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5465
5466 move |event: &ScrollWheelEvent, phase, window, cx| {
5467 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5468 delta = delta.coalesce(event.delta);
5469 editor.update(cx, |editor, cx| {
5470 let position_map: &PositionMap = &position_map;
5471
5472 let line_height = position_map.line_height;
5473 let max_glyph_width = position_map.em_width;
5474 let (delta, axis) = match delta {
5475 gpui::ScrollDelta::Pixels(mut pixels) => {
5476 //Trackpad
5477 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5478 (pixels, axis)
5479 }
5480
5481 gpui::ScrollDelta::Lines(lines) => {
5482 //Not trackpad
5483 let pixels =
5484 point(lines.x * max_glyph_width, lines.y * line_height);
5485 (pixels, None)
5486 }
5487 };
5488
5489 let current_scroll_position = position_map.snapshot.scroll_position();
5490 let x = (current_scroll_position.x * max_glyph_width
5491 - (delta.x * scroll_sensitivity))
5492 / max_glyph_width;
5493 let y = (current_scroll_position.y * line_height
5494 - (delta.y * scroll_sensitivity))
5495 / line_height;
5496 let mut scroll_position =
5497 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5498 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5499 if forbid_vertical_scroll {
5500 scroll_position.y = current_scroll_position.y;
5501 }
5502
5503 if scroll_position != current_scroll_position {
5504 editor.scroll(scroll_position, axis, window, cx);
5505 cx.stop_propagation();
5506 } else if y < 0. {
5507 // Due to clamping, we may fail to detect cases of overscroll to the top;
5508 // We want the scroll manager to get an update in such cases and detect the change of direction
5509 // on the next frame.
5510 cx.notify();
5511 }
5512 });
5513 }
5514 }
5515 });
5516 }
5517
5518 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5519 self.paint_scroll_wheel_listener(layout, window, cx);
5520
5521 window.on_mouse_event({
5522 let position_map = layout.position_map.clone();
5523 let editor = self.editor.clone();
5524 let diff_hunk_range =
5525 layout
5526 .display_hunks
5527 .iter()
5528 .find_map(|(hunk, hunk_hitbox)| match hunk {
5529 DisplayDiffHunk::Folded { .. } => None,
5530 DisplayDiffHunk::Unfolded {
5531 multi_buffer_range, ..
5532 } => {
5533 if hunk_hitbox
5534 .as_ref()
5535 .map(|hitbox| hitbox.is_hovered(window))
5536 .unwrap_or(false)
5537 {
5538 Some(multi_buffer_range.clone())
5539 } else {
5540 None
5541 }
5542 }
5543 });
5544 let line_numbers = layout.line_numbers.clone();
5545
5546 move |event: &MouseDownEvent, phase, window, cx| {
5547 if phase == DispatchPhase::Bubble {
5548 match event.button {
5549 MouseButton::Left => editor.update(cx, |editor, cx| {
5550 let pending_mouse_down = editor
5551 .pending_mouse_down
5552 .get_or_insert_with(Default::default)
5553 .clone();
5554
5555 *pending_mouse_down.borrow_mut() = Some(event.clone());
5556
5557 Self::mouse_left_down(
5558 editor,
5559 event,
5560 diff_hunk_range.clone(),
5561 &position_map,
5562 line_numbers.as_ref(),
5563 window,
5564 cx,
5565 );
5566 }),
5567 MouseButton::Right => editor.update(cx, |editor, cx| {
5568 Self::mouse_right_down(editor, event, &position_map, window, cx);
5569 }),
5570 MouseButton::Middle => editor.update(cx, |editor, cx| {
5571 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5572 }),
5573 _ => {}
5574 };
5575 }
5576 }
5577 });
5578
5579 window.on_mouse_event({
5580 let editor = self.editor.clone();
5581 let position_map = layout.position_map.clone();
5582
5583 move |event: &MouseUpEvent, phase, window, cx| {
5584 if phase == DispatchPhase::Bubble {
5585 editor.update(cx, |editor, cx| {
5586 Self::mouse_up(editor, event, &position_map, window, cx)
5587 });
5588 }
5589 }
5590 });
5591
5592 window.on_mouse_event({
5593 let editor = self.editor.clone();
5594 let position_map = layout.position_map.clone();
5595 let mut captured_mouse_down = None;
5596
5597 move |event: &MouseUpEvent, phase, window, cx| match phase {
5598 // Clear the pending mouse down during the capture phase,
5599 // so that it happens even if another event handler stops
5600 // propagation.
5601 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5602 let pending_mouse_down = editor
5603 .pending_mouse_down
5604 .get_or_insert_with(Default::default)
5605 .clone();
5606
5607 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5608 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5609 captured_mouse_down = pending_mouse_down.take();
5610 window.refresh();
5611 }
5612 }),
5613 // Fire click handlers during the bubble phase.
5614 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5615 if let Some(mouse_down) = captured_mouse_down.take() {
5616 let event = ClickEvent {
5617 down: mouse_down,
5618 up: event.clone(),
5619 };
5620 Self::click(editor, &event, &position_map, window, cx);
5621 }
5622 }),
5623 }
5624 });
5625
5626 window.on_mouse_event({
5627 let position_map = layout.position_map.clone();
5628 let editor = self.editor.clone();
5629
5630 move |event: &MouseMoveEvent, phase, window, cx| {
5631 if phase == DispatchPhase::Bubble {
5632 editor.update(cx, |editor, cx| {
5633 if editor.hover_state.focused(window, cx) {
5634 return;
5635 }
5636 if event.pressed_button == Some(MouseButton::Left)
5637 || event.pressed_button == Some(MouseButton::Middle)
5638 {
5639 Self::mouse_dragged(editor, event, &position_map, window, cx)
5640 }
5641
5642 Self::mouse_moved(editor, event, &position_map, window, cx)
5643 });
5644 }
5645 }
5646 });
5647 }
5648
5649 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5650 bounds.top_right().x - self.style.scrollbar_width
5651 }
5652
5653 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5654 let style = &self.style;
5655 let font_size = style.text.font_size.to_pixels(window.rem_size());
5656 let layout = window
5657 .text_system()
5658 .shape_line(
5659 SharedString::from(" ".repeat(column)),
5660 font_size,
5661 &[TextRun {
5662 len: column,
5663 font: style.text.font(),
5664 color: Hsla::default(),
5665 background_color: None,
5666 underline: None,
5667 strikethrough: None,
5668 }],
5669 )
5670 .unwrap();
5671
5672 layout.width
5673 }
5674
5675 fn max_line_number_width(
5676 &self,
5677 snapshot: &EditorSnapshot,
5678 window: &mut Window,
5679 cx: &mut App,
5680 ) -> Pixels {
5681 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5682 self.column_pixels(digit_count as usize, window, cx)
5683 }
5684
5685 fn shape_line_number(
5686 &self,
5687 text: SharedString,
5688 color: Hsla,
5689 window: &mut Window,
5690 ) -> anyhow::Result<ShapedLine> {
5691 let run = TextRun {
5692 len: text.len(),
5693 font: self.style.text.font(),
5694 color,
5695 background_color: None,
5696 underline: None,
5697 strikethrough: None,
5698 };
5699 window.text_system().shape_line(
5700 text,
5701 self.style.text.font_size.to_pixels(window.rem_size()),
5702 &[run],
5703 )
5704 }
5705
5706 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5707 let unstaged = status.has_secondary_hunk();
5708 let unstaged_hollow = ProjectSettings::get_global(cx)
5709 .git
5710 .hunk_style
5711 .map_or(false, |style| {
5712 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5713 });
5714
5715 unstaged == unstaged_hollow
5716 }
5717}
5718
5719fn header_jump_data(
5720 snapshot: &EditorSnapshot,
5721 block_row_start: DisplayRow,
5722 height: u32,
5723 for_excerpt: &ExcerptInfo,
5724) -> JumpData {
5725 let range = &for_excerpt.range;
5726 let buffer = &for_excerpt.buffer;
5727 let jump_anchor = range.primary.start;
5728
5729 let excerpt_start = range.context.start;
5730 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5731 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5732 0
5733 } else {
5734 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5735 jump_position.row.saturating_sub(excerpt_start_point.row)
5736 };
5737
5738 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5739 .saturating_sub(
5740 snapshot
5741 .scroll_anchor
5742 .scroll_position(&snapshot.display_snapshot)
5743 .y as u32,
5744 );
5745
5746 JumpData::MultiBufferPoint {
5747 excerpt_id: for_excerpt.id,
5748 anchor: jump_anchor,
5749 position: jump_position,
5750 line_offset_from_top,
5751 }
5752}
5753
5754pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5755
5756impl AcceptEditPredictionBinding {
5757 pub fn keystroke(&self) -> Option<&Keystroke> {
5758 if let Some(binding) = self.0.as_ref() {
5759 match &binding.keystrokes() {
5760 [keystroke] => Some(keystroke),
5761 _ => None,
5762 }
5763 } else {
5764 None
5765 }
5766 }
5767}
5768
5769fn prepaint_gutter_button(
5770 button: IconButton,
5771 row: DisplayRow,
5772 line_height: Pixels,
5773 gutter_dimensions: &GutterDimensions,
5774 scroll_pixel_position: gpui::Point<Pixels>,
5775 gutter_hitbox: &Hitbox,
5776 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5777 window: &mut Window,
5778 cx: &mut App,
5779) -> AnyElement {
5780 let mut button = button.into_any_element();
5781
5782 let available_space = size(
5783 AvailableSpace::MinContent,
5784 AvailableSpace::Definite(line_height),
5785 );
5786 let indicator_size = button.layout_as_root(available_space, window, cx);
5787
5788 let blame_width = gutter_dimensions.git_blame_entries_width;
5789 let gutter_width = display_hunks
5790 .binary_search_by(|(hunk, _)| match hunk {
5791 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5792 DisplayDiffHunk::Unfolded {
5793 display_row_range, ..
5794 } => {
5795 if display_row_range.end <= row {
5796 Ordering::Less
5797 } else if display_row_range.start > row {
5798 Ordering::Greater
5799 } else {
5800 Ordering::Equal
5801 }
5802 }
5803 })
5804 .ok()
5805 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5806 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5807
5808 let mut x = left_offset;
5809 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5810 - indicator_size.width
5811 - left_offset;
5812 x += available_width / 2.;
5813
5814 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5815 y += (line_height - indicator_size.height) / 2.;
5816
5817 button.prepaint_as_root(
5818 gutter_hitbox.origin + point(x, y),
5819 available_space,
5820 window,
5821 cx,
5822 );
5823 button
5824}
5825
5826fn render_inline_blame_entry(
5827 editor: Entity<Editor>,
5828 workspace: WeakEntity<Workspace>,
5829 blame: &Entity<GitBlame>,
5830 blame_entry: BlameEntry,
5831 style: &EditorStyle,
5832 cx: &mut App,
5833) -> Option<AnyElement> {
5834 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
5835 let blame = blame.read(cx);
5836 let details = blame.details_for_entry(&blame_entry);
5837 let repository = blame.repository(cx)?.clone();
5838 renderer.render_inline_blame_entry(
5839 &style.text,
5840 blame_entry,
5841 details,
5842 repository,
5843 workspace,
5844 editor,
5845 cx,
5846 )
5847}
5848
5849fn render_blame_entry(
5850 ix: usize,
5851 blame: &Entity<GitBlame>,
5852 blame_entry: BlameEntry,
5853 style: &EditorStyle,
5854 last_used_color: &mut Option<(PlayerColor, Oid)>,
5855 editor: Entity<Editor>,
5856 workspace: Entity<Workspace>,
5857 renderer: Arc<dyn BlameRenderer>,
5858 cx: &mut App,
5859) -> Option<AnyElement> {
5860 let mut sha_color = cx
5861 .theme()
5862 .players()
5863 .color_for_participant(blame_entry.sha.into());
5864
5865 // If the last color we used is the same as the one we get for this line, but
5866 // the commit SHAs are different, then we try again to get a different color.
5867 match *last_used_color {
5868 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5869 let index: u32 = blame_entry.sha.into();
5870 sha_color = cx.theme().players().color_for_participant(index + 1);
5871 }
5872 _ => {}
5873 };
5874 last_used_color.replace((sha_color, blame_entry.sha));
5875
5876 let blame = blame.read(cx);
5877 let details = blame.details_for_entry(&blame_entry);
5878 let repository = blame.repository(cx)?;
5879 renderer.render_blame_entry(
5880 &style.text,
5881 blame_entry,
5882 details,
5883 repository,
5884 workspace.downgrade(),
5885 editor,
5886 ix,
5887 sha_color.cursor,
5888 cx,
5889 )
5890}
5891
5892#[derive(Debug)]
5893pub(crate) struct LineWithInvisibles {
5894 fragments: SmallVec<[LineFragment; 1]>,
5895 invisibles: Vec<Invisible>,
5896 len: usize,
5897 pub(crate) width: Pixels,
5898 font_size: Pixels,
5899}
5900
5901#[allow(clippy::large_enum_variant)]
5902enum LineFragment {
5903 Text(ShapedLine),
5904 Element {
5905 id: FoldId,
5906 element: Option<AnyElement>,
5907 size: Size<Pixels>,
5908 len: usize,
5909 },
5910}
5911
5912impl fmt::Debug for LineFragment {
5913 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5914 match self {
5915 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5916 LineFragment::Element { size, len, .. } => f
5917 .debug_struct("Element")
5918 .field("size", size)
5919 .field("len", len)
5920 .finish(),
5921 }
5922 }
5923}
5924
5925impl LineWithInvisibles {
5926 fn from_chunks<'a>(
5927 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5928 editor_style: &EditorStyle,
5929 max_line_len: usize,
5930 max_line_count: usize,
5931 editor_mode: EditorMode,
5932 text_width: Pixels,
5933 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5934 window: &mut Window,
5935 cx: &mut App,
5936 ) -> Vec<Self> {
5937 let text_style = &editor_style.text;
5938 let mut layouts = Vec::with_capacity(max_line_count);
5939 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5940 let mut line = String::new();
5941 let mut invisibles = Vec::new();
5942 let mut width = Pixels::ZERO;
5943 let mut len = 0;
5944 let mut styles = Vec::new();
5945 let mut non_whitespace_added = false;
5946 let mut row = 0;
5947 let mut line_exceeded_max_len = false;
5948 let font_size = text_style.font_size.to_pixels(window.rem_size());
5949
5950 let ellipsis = SharedString::from("⋯");
5951
5952 for highlighted_chunk in chunks.chain([HighlightedChunk {
5953 text: "\n",
5954 style: None,
5955 is_tab: false,
5956 replacement: None,
5957 }]) {
5958 if let Some(replacement) = highlighted_chunk.replacement {
5959 if !line.is_empty() {
5960 let shaped_line = window
5961 .text_system()
5962 .shape_line(line.clone().into(), font_size, &styles)
5963 .unwrap();
5964 width += shaped_line.width;
5965 len += shaped_line.len;
5966 fragments.push(LineFragment::Text(shaped_line));
5967 line.clear();
5968 styles.clear();
5969 }
5970
5971 match replacement {
5972 ChunkReplacement::Renderer(renderer) => {
5973 let available_width = if renderer.constrain_width {
5974 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5975 ellipsis.clone()
5976 } else {
5977 SharedString::from(Arc::from(highlighted_chunk.text))
5978 };
5979 let shaped_line = window
5980 .text_system()
5981 .shape_line(
5982 chunk,
5983 font_size,
5984 &[text_style.to_run(highlighted_chunk.text.len())],
5985 )
5986 .unwrap();
5987 AvailableSpace::Definite(shaped_line.width)
5988 } else {
5989 AvailableSpace::MinContent
5990 };
5991
5992 let mut element = (renderer.render)(&mut ChunkRendererContext {
5993 context: cx,
5994 window,
5995 max_width: text_width,
5996 });
5997 let line_height = text_style.line_height_in_pixels(window.rem_size());
5998 let size = element.layout_as_root(
5999 size(available_width, AvailableSpace::Definite(line_height)),
6000 window,
6001 cx,
6002 );
6003
6004 width += size.width;
6005 len += highlighted_chunk.text.len();
6006 fragments.push(LineFragment::Element {
6007 id: renderer.id,
6008 element: Some(element),
6009 size,
6010 len: highlighted_chunk.text.len(),
6011 });
6012 }
6013 ChunkReplacement::Str(x) => {
6014 let text_style = if let Some(style) = highlighted_chunk.style {
6015 Cow::Owned(text_style.clone().highlight(style))
6016 } else {
6017 Cow::Borrowed(text_style)
6018 };
6019
6020 let run = TextRun {
6021 len: x.len(),
6022 font: text_style.font(),
6023 color: text_style.color,
6024 background_color: text_style.background_color,
6025 underline: text_style.underline,
6026 strikethrough: text_style.strikethrough,
6027 };
6028 let line_layout = window
6029 .text_system()
6030 .shape_line(x, font_size, &[run])
6031 .unwrap()
6032 .with_len(highlighted_chunk.text.len());
6033
6034 width += line_layout.width;
6035 len += highlighted_chunk.text.len();
6036 fragments.push(LineFragment::Text(line_layout))
6037 }
6038 }
6039 } else {
6040 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6041 if ix > 0 {
6042 let shaped_line = window
6043 .text_system()
6044 .shape_line(line.clone().into(), font_size, &styles)
6045 .unwrap();
6046 width += shaped_line.width;
6047 len += shaped_line.len;
6048 fragments.push(LineFragment::Text(shaped_line));
6049 layouts.push(Self {
6050 width: mem::take(&mut width),
6051 len: mem::take(&mut len),
6052 fragments: mem::take(&mut fragments),
6053 invisibles: std::mem::take(&mut invisibles),
6054 font_size,
6055 });
6056
6057 line.clear();
6058 styles.clear();
6059 row += 1;
6060 line_exceeded_max_len = false;
6061 non_whitespace_added = false;
6062 if row == max_line_count {
6063 return layouts;
6064 }
6065 }
6066
6067 if !line_chunk.is_empty() && !line_exceeded_max_len {
6068 let text_style = if let Some(style) = highlighted_chunk.style {
6069 Cow::Owned(text_style.clone().highlight(style))
6070 } else {
6071 Cow::Borrowed(text_style)
6072 };
6073
6074 if line.len() + line_chunk.len() > max_line_len {
6075 let mut chunk_len = max_line_len - line.len();
6076 while !line_chunk.is_char_boundary(chunk_len) {
6077 chunk_len -= 1;
6078 }
6079 line_chunk = &line_chunk[..chunk_len];
6080 line_exceeded_max_len = true;
6081 }
6082
6083 styles.push(TextRun {
6084 len: line_chunk.len(),
6085 font: text_style.font(),
6086 color: text_style.color,
6087 background_color: text_style.background_color,
6088 underline: text_style.underline,
6089 strikethrough: text_style.strikethrough,
6090 });
6091
6092 if editor_mode.is_full() {
6093 // Line wrap pads its contents with fake whitespaces,
6094 // avoid printing them
6095 let is_soft_wrapped = is_row_soft_wrapped(row);
6096 if highlighted_chunk.is_tab {
6097 if non_whitespace_added || !is_soft_wrapped {
6098 invisibles.push(Invisible::Tab {
6099 line_start_offset: line.len(),
6100 line_end_offset: line.len() + line_chunk.len(),
6101 });
6102 }
6103 } else {
6104 invisibles.extend(line_chunk.char_indices().filter_map(
6105 |(index, c)| {
6106 let is_whitespace = c.is_whitespace();
6107 non_whitespace_added |= !is_whitespace;
6108 if is_whitespace
6109 && (non_whitespace_added || !is_soft_wrapped)
6110 {
6111 Some(Invisible::Whitespace {
6112 line_offset: line.len() + index,
6113 })
6114 } else {
6115 None
6116 }
6117 },
6118 ))
6119 }
6120 }
6121
6122 line.push_str(line_chunk);
6123 }
6124 }
6125 }
6126 }
6127
6128 layouts
6129 }
6130
6131 fn prepaint(
6132 &mut self,
6133 line_height: Pixels,
6134 scroll_pixel_position: gpui::Point<Pixels>,
6135 row: DisplayRow,
6136 content_origin: gpui::Point<Pixels>,
6137 line_elements: &mut SmallVec<[AnyElement; 1]>,
6138 window: &mut Window,
6139 cx: &mut App,
6140 ) {
6141 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6142 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6143 for fragment in &mut self.fragments {
6144 match fragment {
6145 LineFragment::Text(line) => {
6146 fragment_origin.x += line.width;
6147 }
6148 LineFragment::Element { element, size, .. } => {
6149 let mut element = element
6150 .take()
6151 .expect("you can't prepaint LineWithInvisibles twice");
6152
6153 // Center the element vertically within the line.
6154 let mut element_origin = fragment_origin;
6155 element_origin.y += (line_height - size.height) / 2.;
6156 element.prepaint_at(element_origin, window, cx);
6157 line_elements.push(element);
6158
6159 fragment_origin.x += size.width;
6160 }
6161 }
6162 }
6163 }
6164
6165 fn draw(
6166 &self,
6167 layout: &EditorLayout,
6168 row: DisplayRow,
6169 content_origin: gpui::Point<Pixels>,
6170 whitespace_setting: ShowWhitespaceSetting,
6171 selection_ranges: &[Range<DisplayPoint>],
6172 window: &mut Window,
6173 cx: &mut App,
6174 ) {
6175 let line_height = layout.position_map.line_height;
6176 let line_y = line_height
6177 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6178
6179 let mut fragment_origin =
6180 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6181
6182 for fragment in &self.fragments {
6183 match fragment {
6184 LineFragment::Text(line) => {
6185 line.paint(fragment_origin, line_height, window, cx)
6186 .log_err();
6187 fragment_origin.x += line.width;
6188 }
6189 LineFragment::Element { size, .. } => {
6190 fragment_origin.x += size.width;
6191 }
6192 }
6193 }
6194
6195 self.draw_invisibles(
6196 selection_ranges,
6197 layout,
6198 content_origin,
6199 line_y,
6200 row,
6201 line_height,
6202 whitespace_setting,
6203 window,
6204 cx,
6205 );
6206 }
6207
6208 fn draw_background(
6209 &self,
6210 layout: &EditorLayout,
6211 row: DisplayRow,
6212 content_origin: gpui::Point<Pixels>,
6213 window: &mut Window,
6214 cx: &mut App,
6215 ) {
6216 let line_height = layout.position_map.line_height;
6217 let line_y = line_height
6218 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6219
6220 let mut fragment_origin =
6221 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6222
6223 for fragment in &self.fragments {
6224 match fragment {
6225 LineFragment::Text(line) => {
6226 line.paint_background(fragment_origin, line_height, window, cx)
6227 .log_err();
6228 fragment_origin.x += line.width;
6229 }
6230 LineFragment::Element { size, .. } => {
6231 fragment_origin.x += size.width;
6232 }
6233 }
6234 }
6235 }
6236
6237 fn draw_invisibles(
6238 &self,
6239 selection_ranges: &[Range<DisplayPoint>],
6240 layout: &EditorLayout,
6241 content_origin: gpui::Point<Pixels>,
6242 line_y: Pixels,
6243 row: DisplayRow,
6244 line_height: Pixels,
6245 whitespace_setting: ShowWhitespaceSetting,
6246 window: &mut Window,
6247 cx: &mut App,
6248 ) {
6249 let extract_whitespace_info = |invisible: &Invisible| {
6250 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6251 Invisible::Tab {
6252 line_start_offset,
6253 line_end_offset,
6254 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6255 Invisible::Whitespace { line_offset } => {
6256 (*line_offset, line_offset + 1, &layout.space_invisible)
6257 }
6258 };
6259
6260 let x_offset = self.x_for_index(token_offset);
6261 let invisible_offset =
6262 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6263 let origin = content_origin
6264 + gpui::point(
6265 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6266 line_y,
6267 );
6268
6269 (
6270 [token_offset, token_end_offset],
6271 Box::new(move |window: &mut Window, cx: &mut App| {
6272 invisible_symbol
6273 .paint(origin, line_height, window, cx)
6274 .log_err();
6275 }),
6276 )
6277 };
6278
6279 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6280 match whitespace_setting {
6281 ShowWhitespaceSetting::None => (),
6282 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6283 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6284 let invisible_point = DisplayPoint::new(row, start as u32);
6285 if !selection_ranges
6286 .iter()
6287 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6288 {
6289 return;
6290 }
6291
6292 paint(window, cx);
6293 }),
6294
6295 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6296 // - It is a tab
6297 // - It is adjacent to an edge (start or end)
6298 // - It is adjacent to a whitespace (left or right)
6299 ShowWhitespaceSetting::Boundary => {
6300 // 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
6301 // the above cases.
6302 // Note: We zip in the original `invisibles` to check for tab equality
6303 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6304 for (([start, end], paint), invisible) in
6305 invisible_iter.zip_eq(self.invisibles.iter())
6306 {
6307 let should_render = match (&last_seen, invisible) {
6308 (_, Invisible::Tab { .. }) => true,
6309 (Some((_, last_end, _)), _) => *last_end == start,
6310 _ => false,
6311 };
6312
6313 if should_render || start == 0 || end == self.len {
6314 paint(window, cx);
6315
6316 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6317 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6318 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6319 // Note that we need to make sure that the last one is actually adjacent
6320 if !should_render_last && last_end == start {
6321 paint_last(window, cx);
6322 }
6323 }
6324 }
6325
6326 // Manually render anything within a selection
6327 let invisible_point = DisplayPoint::new(row, start as u32);
6328 if selection_ranges.iter().any(|region| {
6329 region.start <= invisible_point && invisible_point < region.end
6330 }) {
6331 paint(window, cx);
6332 }
6333
6334 last_seen = Some((should_render, end, paint));
6335 }
6336 }
6337 }
6338 }
6339
6340 pub fn x_for_index(&self, index: usize) -> Pixels {
6341 let mut fragment_start_x = Pixels::ZERO;
6342 let mut fragment_start_index = 0;
6343
6344 for fragment in &self.fragments {
6345 match fragment {
6346 LineFragment::Text(shaped_line) => {
6347 let fragment_end_index = fragment_start_index + shaped_line.len;
6348 if index < fragment_end_index {
6349 return fragment_start_x
6350 + shaped_line.x_for_index(index - fragment_start_index);
6351 }
6352 fragment_start_x += shaped_line.width;
6353 fragment_start_index = fragment_end_index;
6354 }
6355 LineFragment::Element { len, size, .. } => {
6356 let fragment_end_index = fragment_start_index + len;
6357 if index < fragment_end_index {
6358 return fragment_start_x;
6359 }
6360 fragment_start_x += size.width;
6361 fragment_start_index = fragment_end_index;
6362 }
6363 }
6364 }
6365
6366 fragment_start_x
6367 }
6368
6369 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6370 let mut fragment_start_x = Pixels::ZERO;
6371 let mut fragment_start_index = 0;
6372
6373 for fragment in &self.fragments {
6374 match fragment {
6375 LineFragment::Text(shaped_line) => {
6376 let fragment_end_x = fragment_start_x + shaped_line.width;
6377 if x < fragment_end_x {
6378 return Some(
6379 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6380 );
6381 }
6382 fragment_start_x = fragment_end_x;
6383 fragment_start_index += shaped_line.len;
6384 }
6385 LineFragment::Element { len, size, .. } => {
6386 let fragment_end_x = fragment_start_x + size.width;
6387 if x < fragment_end_x {
6388 return Some(fragment_start_index);
6389 }
6390 fragment_start_index += len;
6391 fragment_start_x = fragment_end_x;
6392 }
6393 }
6394 }
6395
6396 None
6397 }
6398
6399 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6400 let mut fragment_start_index = 0;
6401
6402 for fragment in &self.fragments {
6403 match fragment {
6404 LineFragment::Text(shaped_line) => {
6405 let fragment_end_index = fragment_start_index + shaped_line.len;
6406 if index < fragment_end_index {
6407 return shaped_line.font_id_for_index(index - fragment_start_index);
6408 }
6409 fragment_start_index = fragment_end_index;
6410 }
6411 LineFragment::Element { len, .. } => {
6412 let fragment_end_index = fragment_start_index + len;
6413 if index < fragment_end_index {
6414 return None;
6415 }
6416 fragment_start_index = fragment_end_index;
6417 }
6418 }
6419 }
6420
6421 None
6422 }
6423}
6424
6425#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6426enum Invisible {
6427 /// A tab character
6428 ///
6429 /// A tab character is internally represented by spaces (configured by the user's tab width)
6430 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6431 /// adjacency checks.
6432 Tab {
6433 line_start_offset: usize,
6434 line_end_offset: usize,
6435 },
6436 Whitespace {
6437 line_offset: usize,
6438 },
6439}
6440
6441impl EditorElement {
6442 /// Returns the rem size to use when rendering the [`EditorElement`].
6443 ///
6444 /// This allows UI elements to scale based on the `buffer_font_size`.
6445 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6446 match self.editor.read(cx).mode {
6447 EditorMode::Full {
6448 scale_ui_elements_with_buffer_font_size,
6449 ..
6450 } => {
6451 if !scale_ui_elements_with_buffer_font_size {
6452 return None;
6453 }
6454 let buffer_font_size = self.style.text.font_size;
6455 match buffer_font_size {
6456 AbsoluteLength::Pixels(pixels) => {
6457 let rem_size_scale = {
6458 // Our default UI font size is 14px on a 16px base scale.
6459 // This means the default UI font size is 0.875rems.
6460 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6461
6462 // We then determine the delta between a single rem and the default font
6463 // size scale.
6464 let default_font_size_delta = 1. - default_font_size_scale;
6465
6466 // Finally, we add this delta to 1rem to get the scale factor that
6467 // should be used to scale up the UI.
6468 1. + default_font_size_delta
6469 };
6470
6471 Some(pixels * rem_size_scale)
6472 }
6473 AbsoluteLength::Rems(rems) => {
6474 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6475 }
6476 }
6477 }
6478 // We currently use single-line and auto-height editors in UI contexts,
6479 // so we don't want to scale everything with the buffer font size, as it
6480 // ends up looking off.
6481 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6482 }
6483 }
6484}
6485
6486impl Element for EditorElement {
6487 type RequestLayoutState = ();
6488 type PrepaintState = EditorLayout;
6489
6490 fn id(&self) -> Option<ElementId> {
6491 None
6492 }
6493
6494 fn request_layout(
6495 &mut self,
6496 _: Option<&GlobalElementId>,
6497 window: &mut Window,
6498 cx: &mut App,
6499 ) -> (gpui::LayoutId, ()) {
6500 let rem_size = self.rem_size(cx);
6501 window.with_rem_size(rem_size, |window| {
6502 self.editor.update(cx, |editor, cx| {
6503 editor.set_style(self.style.clone(), window, cx);
6504
6505 let layout_id = match editor.mode {
6506 EditorMode::SingleLine { auto_width } => {
6507 let rem_size = window.rem_size();
6508
6509 let height = self.style.text.line_height_in_pixels(rem_size);
6510 if auto_width {
6511 let editor_handle = cx.entity().clone();
6512 let style = self.style.clone();
6513 window.request_measured_layout(
6514 Style::default(),
6515 move |_, _, window, cx| {
6516 let editor_snapshot = editor_handle
6517 .update(cx, |editor, cx| editor.snapshot(window, cx));
6518 let line = Self::layout_lines(
6519 DisplayRow(0)..DisplayRow(1),
6520 &editor_snapshot,
6521 &style,
6522 px(f32::MAX),
6523 |_| false, // Single lines never soft wrap
6524 window,
6525 cx,
6526 )
6527 .pop()
6528 .unwrap();
6529
6530 let font_id =
6531 window.text_system().resolve_font(&style.text.font());
6532 let font_size =
6533 style.text.font_size.to_pixels(window.rem_size());
6534 let em_width =
6535 window.text_system().em_width(font_id, font_size).unwrap();
6536
6537 size(line.width + em_width, height)
6538 },
6539 )
6540 } else {
6541 let mut style = Style::default();
6542 style.size.height = height.into();
6543 style.size.width = relative(1.).into();
6544 window.request_layout(style, None, cx)
6545 }
6546 }
6547 EditorMode::AutoHeight { max_lines } => {
6548 let editor_handle = cx.entity().clone();
6549 let max_line_number_width =
6550 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6551 window.request_measured_layout(
6552 Style::default(),
6553 move |known_dimensions, available_space, window, cx| {
6554 editor_handle
6555 .update(cx, |editor, cx| {
6556 compute_auto_height_layout(
6557 editor,
6558 max_lines,
6559 max_line_number_width,
6560 known_dimensions,
6561 available_space.width,
6562 window,
6563 cx,
6564 )
6565 })
6566 .unwrap_or_default()
6567 },
6568 )
6569 }
6570 EditorMode::Full { .. } => {
6571 let mut style = Style::default();
6572 style.size.width = relative(1.).into();
6573 style.size.height = relative(1.).into();
6574 window.request_layout(style, None, cx)
6575 }
6576 };
6577
6578 (layout_id, ())
6579 })
6580 })
6581 }
6582
6583 fn prepaint(
6584 &mut self,
6585 _: Option<&GlobalElementId>,
6586 bounds: Bounds<Pixels>,
6587 _: &mut Self::RequestLayoutState,
6588 window: &mut Window,
6589 cx: &mut App,
6590 ) -> Self::PrepaintState {
6591 let text_style = TextStyleRefinement {
6592 font_size: Some(self.style.text.font_size),
6593 line_height: Some(self.style.text.line_height),
6594 ..Default::default()
6595 };
6596 let focus_handle = self.editor.focus_handle(cx);
6597 window.set_view_id(self.editor.entity_id());
6598 window.set_focus_handle(&focus_handle, cx);
6599
6600 let rem_size = self.rem_size(cx);
6601 window.with_rem_size(rem_size, |window| {
6602 window.with_text_style(Some(text_style), |window| {
6603 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6604 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
6605 (editor.snapshot(window, cx), editor.read_only(cx))
6606 });
6607 let style = self.style.clone();
6608
6609 let font_id = window.text_system().resolve_font(&style.text.font());
6610 let font_size = style.text.font_size.to_pixels(window.rem_size());
6611 let line_height = style.text.line_height_in_pixels(window.rem_size());
6612 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6613 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6614
6615 let glyph_grid_cell = size(em_width, line_height);
6616
6617 let gutter_dimensions = snapshot
6618 .gutter_dimensions(
6619 font_id,
6620 font_size,
6621 self.max_line_number_width(&snapshot, window, cx),
6622 cx,
6623 )
6624 .unwrap_or_default();
6625 let text_width = bounds.size.width - gutter_dimensions.width;
6626
6627 let editor_width =
6628 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6629
6630 snapshot = self.editor.update(cx, |editor, cx| {
6631 editor.last_bounds = Some(bounds);
6632 editor.gutter_dimensions = gutter_dimensions;
6633 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6634
6635 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6636 snapshot
6637 } else {
6638 let wrap_width = match editor.soft_wrap_mode(cx) {
6639 SoftWrap::GitDiff => None,
6640 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6641 SoftWrap::EditorWidth => Some(editor_width),
6642 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6643 SoftWrap::Bounded(column) => {
6644 Some(editor_width.min(column as f32 * em_advance))
6645 }
6646 };
6647
6648 if editor.set_wrap_width(wrap_width.map(|w| w.ceil()), cx) {
6649 editor.snapshot(window, cx)
6650 } else {
6651 snapshot
6652 }
6653 }
6654 });
6655
6656 let wrap_guides = self
6657 .editor
6658 .read(cx)
6659 .wrap_guides(cx)
6660 .iter()
6661 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6662 .collect::<SmallVec<[_; 2]>>();
6663
6664 let hitbox = window.insert_hitbox(bounds, false);
6665 let gutter_hitbox =
6666 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6667 let text_hitbox = window.insert_hitbox(
6668 Bounds {
6669 origin: gutter_hitbox.top_right(),
6670 size: size(text_width, bounds.size.height),
6671 },
6672 false,
6673 );
6674
6675 // Offset the content_bounds from the text_bounds by the gutter margin (which
6676 // is roughly half a character wide) to make hit testing work more like how we want.
6677 let content_offset = point(gutter_dimensions.margin, Pixels::ZERO);
6678 let content_origin = text_hitbox.origin + content_offset;
6679
6680 let editor_text_bounds =
6681 Bounds::from_corners(content_origin, bounds.bottom_right());
6682
6683 let height_in_lines = editor_text_bounds.size.height / line_height;
6684
6685 let max_row = snapshot.max_point().row().as_f32();
6686
6687 // The max scroll position for the top of the window
6688 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6689 (max_row - height_in_lines + 1.).max(0.)
6690 } else {
6691 let settings = EditorSettings::get_global(cx);
6692 match settings.scroll_beyond_last_line {
6693 ScrollBeyondLastLine::OnePage => max_row,
6694 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6695 ScrollBeyondLastLine::VerticalScrollMargin => {
6696 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6697 .max(0.)
6698 }
6699 }
6700 };
6701
6702 // TODO: Autoscrolling for both axes
6703 let mut autoscroll_request = None;
6704 let mut autoscroll_containing_element = false;
6705 let mut autoscroll_horizontally = false;
6706 self.editor.update(cx, |editor, cx| {
6707 autoscroll_request = editor.autoscroll_request();
6708 autoscroll_containing_element =
6709 autoscroll_request.is_some() || editor.has_pending_selection();
6710 // TODO: Is this horizontal or vertical?!
6711 autoscroll_horizontally = editor.autoscroll_vertically(
6712 bounds,
6713 line_height,
6714 max_scroll_top,
6715 window,
6716 cx,
6717 );
6718 snapshot = editor.snapshot(window, cx);
6719 });
6720
6721 let mut scroll_position = snapshot.scroll_position();
6722 // The scroll position is a fractional point, the whole number of which represents
6723 // the top of the window in terms of display rows.
6724 let start_row = DisplayRow(scroll_position.y as u32);
6725 let max_row = snapshot.max_point().row();
6726 let end_row = cmp::min(
6727 (scroll_position.y + height_in_lines).ceil() as u32,
6728 max_row.next_row().0,
6729 );
6730 let end_row = DisplayRow(end_row);
6731
6732 let row_infos = snapshot
6733 .row_infos(start_row)
6734 .take((start_row..end_row).len())
6735 .collect::<Vec<RowInfo>>();
6736 let is_row_soft_wrapped = |row: usize| {
6737 row_infos
6738 .get(row)
6739 .map_or(true, |info| info.buffer_row.is_none())
6740 };
6741
6742 let start_anchor = if start_row == Default::default() {
6743 Anchor::min()
6744 } else {
6745 snapshot.buffer_snapshot.anchor_before(
6746 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6747 )
6748 };
6749 let end_anchor = if end_row > max_row {
6750 Anchor::max()
6751 } else {
6752 snapshot.buffer_snapshot.anchor_before(
6753 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6754 )
6755 };
6756
6757 let mut highlighted_rows = self
6758 .editor
6759 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6760
6761 let is_light = cx.theme().appearance().is_light();
6762
6763 for (ix, row_info) in row_infos.iter().enumerate() {
6764 let Some(diff_status) = row_info.diff_status else {
6765 continue;
6766 };
6767
6768 let background_color = match diff_status.kind {
6769 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6770 DiffHunkStatusKind::Deleted => {
6771 cx.theme().colors().version_control_deleted
6772 }
6773 DiffHunkStatusKind::Modified => {
6774 debug_panic!("modified diff status for row info");
6775 continue;
6776 }
6777 };
6778
6779 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6780
6781 let hollow_highlight = LineHighlight {
6782 background: (background_color.opacity(if is_light {
6783 0.08
6784 } else {
6785 0.06
6786 }))
6787 .into(),
6788 border: Some(if is_light {
6789 background_color.opacity(0.48)
6790 } else {
6791 background_color.opacity(0.36)
6792 }),
6793 };
6794
6795 let filled_highlight =
6796 solid_background(background_color.opacity(hunk_opacity)).into();
6797
6798 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6799 hollow_highlight
6800 } else {
6801 filled_highlight
6802 };
6803
6804 highlighted_rows
6805 .entry(start_row + DisplayRow(ix as u32))
6806 .or_insert(background);
6807 }
6808
6809 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6810 start_anchor..end_anchor,
6811 &snapshot.display_snapshot,
6812 cx.theme().colors(),
6813 );
6814 let highlighted_gutter_ranges =
6815 self.editor.read(cx).gutter_highlights_in_range(
6816 start_anchor..end_anchor,
6817 &snapshot.display_snapshot,
6818 cx,
6819 );
6820
6821 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6822 start_anchor..end_anchor,
6823 &snapshot.display_snapshot,
6824 cx,
6825 );
6826
6827 let (local_selections, selected_buffer_ids): (
6828 Vec<Selection<Point>>,
6829 Vec<BufferId>,
6830 ) = self.editor.update(cx, |editor, cx| {
6831 let all_selections = editor.selections.all::<Point>(cx);
6832 let selected_buffer_ids = if editor.is_singleton(cx) {
6833 Vec::new()
6834 } else {
6835 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6836
6837 for selection in all_selections {
6838 for buffer_id in snapshot
6839 .buffer_snapshot
6840 .buffer_ids_for_range(selection.range())
6841 {
6842 if selected_buffer_ids.last() != Some(&buffer_id) {
6843 selected_buffer_ids.push(buffer_id);
6844 }
6845 }
6846 }
6847
6848 selected_buffer_ids
6849 };
6850
6851 let mut selections = editor
6852 .selections
6853 .disjoint_in_range(start_anchor..end_anchor, cx);
6854 selections.extend(editor.selections.pending(cx));
6855
6856 (selections, selected_buffer_ids)
6857 });
6858
6859 let (selections, mut active_rows, newest_selection_head) = self
6860 .layout_selections(
6861 start_anchor,
6862 end_anchor,
6863 &local_selections,
6864 &snapshot,
6865 start_row,
6866 end_row,
6867 window,
6868 cx,
6869 );
6870 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6871 editor.active_breakpoints(start_row..end_row, window, cx)
6872 });
6873 if cx.has_flag::<Debugger>() {
6874 for display_row in breakpoint_rows.keys() {
6875 active_rows.entry(*display_row).or_default().breakpoint = true;
6876 }
6877 }
6878
6879 let line_numbers = self.layout_line_numbers(
6880 Some(&gutter_hitbox),
6881 gutter_dimensions,
6882 line_height,
6883 scroll_position,
6884 start_row..end_row,
6885 &row_infos,
6886 &active_rows,
6887 newest_selection_head,
6888 &snapshot,
6889 window,
6890 cx,
6891 );
6892
6893 // We add the gutter breakpoint indicator to breakpoint_rows after painting
6894 // line numbers so we don't paint a line number debug accent color if a user
6895 // has their mouse over that line when a breakpoint isn't there
6896 if cx.has_flag::<Debugger>() {
6897 let gutter_breakpoint_indicator =
6898 self.editor.read(cx).gutter_breakpoint_indicator.0;
6899 if let Some((gutter_breakpoint_point, _)) =
6900 gutter_breakpoint_indicator.filter(|(_, is_active)| *is_active)
6901 {
6902 breakpoint_rows
6903 .entry(gutter_breakpoint_point.row())
6904 .or_insert_with(|| {
6905 let position = snapshot.display_point_to_anchor(
6906 gutter_breakpoint_point,
6907 Bias::Right,
6908 );
6909 let breakpoint = Breakpoint::new_standard();
6910
6911 (position, breakpoint)
6912 });
6913 }
6914 }
6915
6916 let mut expand_toggles =
6917 window.with_element_namespace("expand_toggles", |window| {
6918 self.layout_expand_toggles(
6919 &gutter_hitbox,
6920 gutter_dimensions,
6921 em_width,
6922 line_height,
6923 scroll_position,
6924 &row_infos,
6925 window,
6926 cx,
6927 )
6928 });
6929
6930 let mut crease_toggles =
6931 window.with_element_namespace("crease_toggles", |window| {
6932 self.layout_crease_toggles(
6933 start_row..end_row,
6934 &row_infos,
6935 &active_rows,
6936 &snapshot,
6937 window,
6938 cx,
6939 )
6940 });
6941 let crease_trailers =
6942 window.with_element_namespace("crease_trailers", |window| {
6943 self.layout_crease_trailers(
6944 row_infos.iter().copied(),
6945 &snapshot,
6946 window,
6947 cx,
6948 )
6949 });
6950
6951 let display_hunks = self.layout_gutter_diff_hunks(
6952 line_height,
6953 &gutter_hitbox,
6954 start_row..end_row,
6955 &snapshot,
6956 window,
6957 cx,
6958 );
6959
6960 let mut line_layouts = Self::layout_lines(
6961 start_row..end_row,
6962 &snapshot,
6963 &self.style,
6964 editor_width,
6965 is_row_soft_wrapped,
6966 window,
6967 cx,
6968 );
6969 let new_fold_widths = line_layouts
6970 .iter()
6971 .flat_map(|layout| &layout.fragments)
6972 .filter_map(|fragment| {
6973 if let LineFragment::Element { id, size, .. } = fragment {
6974 Some((*id, size.width))
6975 } else {
6976 None
6977 }
6978 });
6979 if self.editor.update(cx, |editor, cx| {
6980 editor.update_fold_widths(new_fold_widths, cx)
6981 }) {
6982 // If the fold widths have changed, we need to prepaint
6983 // the element again to account for any changes in
6984 // wrapping.
6985 return self.prepaint(None, bounds, &mut (), window, cx);
6986 }
6987
6988 let longest_line_blame_width = self
6989 .editor
6990 .update(cx, |editor, cx| {
6991 if !editor.show_git_blame_inline {
6992 return None;
6993 }
6994 let blame = editor.blame.as_ref()?;
6995 let blame_entry = blame
6996 .update(cx, |blame, cx| {
6997 let row_infos =
6998 snapshot.row_infos(snapshot.longest_row()).next()?;
6999 blame.blame_for_rows(&[row_infos], cx).next()
7000 })
7001 .flatten()?;
7002 let mut element = render_inline_blame_entry(
7003 self.editor.clone(),
7004 editor.workspace()?.downgrade(),
7005 blame,
7006 blame_entry,
7007 &style,
7008 cx,
7009 )?;
7010 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7011 Some(
7012 element
7013 .layout_as_root(AvailableSpace::min_size(), window, cx)
7014 .width
7015 + inline_blame_padding,
7016 )
7017 })
7018 .unwrap_or(Pixels::ZERO);
7019
7020 let longest_line_width = layout_line(
7021 snapshot.longest_row(),
7022 &snapshot,
7023 &style,
7024 editor_width,
7025 is_row_soft_wrapped,
7026 window,
7027 cx,
7028 )
7029 .width;
7030
7031 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
7032 text_hitbox.bounds,
7033 glyph_grid_cell,
7034 size(longest_line_width, max_row.as_f32() * line_height),
7035 longest_line_blame_width,
7036 style.scrollbar_width,
7037 editor_width,
7038 EditorSettings::get_global(cx),
7039 );
7040
7041 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
7042
7043 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7044 snapshot.sticky_header_excerpt(scroll_position.y)
7045 } else {
7046 None
7047 };
7048 let sticky_header_excerpt_id =
7049 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7050
7051 let blocks = window.with_element_namespace("blocks", |window| {
7052 self.render_blocks(
7053 start_row..end_row,
7054 &snapshot,
7055 &hitbox,
7056 &text_hitbox,
7057 editor_width,
7058 &mut scroll_width,
7059 &gutter_dimensions,
7060 em_width,
7061 gutter_dimensions.full_width(),
7062 line_height,
7063 &mut line_layouts,
7064 &local_selections,
7065 &selected_buffer_ids,
7066 is_row_soft_wrapped,
7067 sticky_header_excerpt_id,
7068 window,
7069 cx,
7070 )
7071 });
7072 let (mut blocks, row_block_types) = match blocks {
7073 Ok(blocks) => blocks,
7074 Err(resized_blocks) => {
7075 self.editor.update(cx, |editor, cx| {
7076 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7077 });
7078 return self.prepaint(None, bounds, &mut (), window, cx);
7079 }
7080 };
7081
7082 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7083 window.with_element_namespace("blocks", |window| {
7084 self.layout_sticky_buffer_header(
7085 sticky_header_excerpt,
7086 scroll_position.y,
7087 line_height,
7088 &snapshot,
7089 &hitbox,
7090 &selected_buffer_ids,
7091 &blocks,
7092 window,
7093 cx,
7094 )
7095 })
7096 });
7097
7098 let start_buffer_row =
7099 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7100 let end_buffer_row =
7101 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7102
7103 let scroll_max = point(
7104 ((scroll_width - editor_text_bounds.size.width) / em_width).max(0.0),
7105 max_scroll_top,
7106 );
7107
7108 self.editor.update(cx, |editor, cx| {
7109 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7110
7111 let autoscrolled = if autoscroll_horizontally {
7112 editor.autoscroll_horizontally(
7113 start_row,
7114 editor_width - (glyph_grid_cell.width / 2.0)
7115 + style.scrollbar_width,
7116 scroll_width,
7117 em_width,
7118 &line_layouts,
7119 cx,
7120 )
7121 } else {
7122 false
7123 };
7124
7125 if clamped || autoscrolled {
7126 snapshot = editor.snapshot(window, cx);
7127 scroll_position = snapshot.scroll_position();
7128 }
7129 });
7130
7131 let scroll_pixel_position = point(
7132 scroll_position.x * em_width,
7133 scroll_position.y * line_height,
7134 );
7135
7136 let indent_guides = self.layout_indent_guides(
7137 content_origin,
7138 text_hitbox.origin,
7139 start_buffer_row..end_buffer_row,
7140 scroll_pixel_position,
7141 line_height,
7142 &snapshot,
7143 window,
7144 cx,
7145 );
7146
7147 let crease_trailers =
7148 window.with_element_namespace("crease_trailers", |window| {
7149 self.prepaint_crease_trailers(
7150 crease_trailers,
7151 &line_layouts,
7152 line_height,
7153 content_origin,
7154 scroll_pixel_position,
7155 em_width,
7156 window,
7157 cx,
7158 )
7159 });
7160
7161 let (inline_completion_popover, inline_completion_popover_origin) = self
7162 .editor
7163 .update(cx, |editor, cx| {
7164 editor.render_edit_prediction_popover(
7165 &text_hitbox.bounds,
7166 content_origin,
7167 &snapshot,
7168 start_row..end_row,
7169 scroll_position.y,
7170 scroll_position.y + height_in_lines,
7171 &line_layouts,
7172 line_height,
7173 scroll_pixel_position,
7174 newest_selection_head,
7175 editor_width,
7176 &style,
7177 window,
7178 cx,
7179 )
7180 })
7181 .unzip();
7182
7183 let mut inline_diagnostics = self.layout_inline_diagnostics(
7184 &line_layouts,
7185 &crease_trailers,
7186 &row_block_types,
7187 content_origin,
7188 scroll_pixel_position,
7189 inline_completion_popover_origin,
7190 start_row,
7191 end_row,
7192 line_height,
7193 em_width,
7194 &style,
7195 window,
7196 cx,
7197 );
7198
7199 let mut inline_blame = None;
7200 if let Some(newest_selection_head) = newest_selection_head {
7201 let display_row = newest_selection_head.row();
7202 if (start_row..end_row).contains(&display_row)
7203 && !row_block_types.contains_key(&display_row)
7204 {
7205 let line_ix = display_row.minus(start_row) as usize;
7206 let row_info = &row_infos[line_ix];
7207 let line_layout = &line_layouts[line_ix];
7208 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7209 inline_blame = self.layout_inline_blame(
7210 display_row,
7211 row_info,
7212 line_layout,
7213 crease_trailer_layout,
7214 em_width,
7215 content_origin,
7216 scroll_pixel_position,
7217 line_height,
7218 window,
7219 cx,
7220 );
7221 if inline_blame.is_some() {
7222 // Blame overrides inline diagnostics
7223 inline_diagnostics.remove(&display_row);
7224 }
7225 }
7226 }
7227
7228 let blamed_display_rows = self.layout_blame_entries(
7229 &row_infos,
7230 em_width,
7231 scroll_position,
7232 line_height,
7233 &gutter_hitbox,
7234 gutter_dimensions.git_blame_entries_width,
7235 window,
7236 cx,
7237 );
7238
7239 self.editor.update(cx, |editor, cx| {
7240 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7241
7242 let autoscrolled = if autoscroll_horizontally {
7243 editor.autoscroll_horizontally(
7244 start_row,
7245 editor_width - (glyph_grid_cell.width / 2.0)
7246 + style.scrollbar_width,
7247 scroll_width,
7248 em_width,
7249 &line_layouts,
7250 cx,
7251 )
7252 } else {
7253 false
7254 };
7255
7256 if clamped || autoscrolled {
7257 snapshot = editor.snapshot(window, cx);
7258 scroll_position = snapshot.scroll_position();
7259 }
7260 });
7261
7262 let line_elements = self.prepaint_lines(
7263 start_row,
7264 &mut line_layouts,
7265 line_height,
7266 scroll_pixel_position,
7267 content_origin,
7268 window,
7269 cx,
7270 );
7271
7272 window.with_element_namespace("blocks", |window| {
7273 self.layout_blocks(
7274 &mut blocks,
7275 &hitbox,
7276 line_height,
7277 scroll_pixel_position,
7278 window,
7279 cx,
7280 );
7281 });
7282
7283 let cursors = self.collect_cursors(&snapshot, cx);
7284 let visible_row_range = start_row..end_row;
7285 let non_visible_cursors = cursors
7286 .iter()
7287 .any(|c| !visible_row_range.contains(&c.0.row()));
7288
7289 let visible_cursors = self.layout_visible_cursors(
7290 &snapshot,
7291 &selections,
7292 &row_block_types,
7293 start_row..end_row,
7294 &line_layouts,
7295 &text_hitbox,
7296 content_origin,
7297 scroll_position,
7298 scroll_pixel_position,
7299 line_height,
7300 em_width,
7301 em_advance,
7302 autoscroll_containing_element,
7303 window,
7304 cx,
7305 );
7306
7307 let scrollbars_layout = self.layout_scrollbars(
7308 &snapshot,
7309 scrollbar_layout_information,
7310 content_offset,
7311 scroll_position,
7312 non_visible_cursors,
7313 window,
7314 cx,
7315 );
7316
7317 let gutter_settings = EditorSettings::get_global(cx).gutter;
7318
7319 let mut code_actions_indicator = None;
7320 if let Some(newest_selection_head) = newest_selection_head {
7321 let newest_selection_point =
7322 newest_selection_head.to_point(&snapshot.display_snapshot);
7323
7324 if (start_row..end_row).contains(&newest_selection_head.row()) {
7325 self.layout_cursor_popovers(
7326 line_height,
7327 &text_hitbox,
7328 content_origin,
7329 start_row,
7330 scroll_pixel_position,
7331 &line_layouts,
7332 newest_selection_head,
7333 newest_selection_point,
7334 &style,
7335 window,
7336 cx,
7337 );
7338
7339 let show_code_actions = snapshot
7340 .show_code_actions
7341 .unwrap_or(gutter_settings.code_actions);
7342 if show_code_actions {
7343 let newest_selection_point =
7344 newest_selection_head.to_point(&snapshot.display_snapshot);
7345 if !snapshot
7346 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7347 {
7348 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7349 MultiBufferRow(newest_selection_point.row),
7350 );
7351 if let Some((buffer, range)) = buffer {
7352 let buffer_id = buffer.remote_id();
7353 let row = range.start.row;
7354 let has_test_indicator = self
7355 .editor
7356 .read(cx)
7357 .tasks
7358 .contains_key(&(buffer_id, row));
7359
7360 let has_expand_indicator = row_infos
7361 .get(
7362 (newest_selection_head.row() - start_row).0
7363 as usize,
7364 )
7365 .is_some_and(|row_info| row_info.expand_info.is_some());
7366
7367 if !has_test_indicator && !has_expand_indicator {
7368 code_actions_indicator = self
7369 .layout_code_actions_indicator(
7370 line_height,
7371 newest_selection_head,
7372 scroll_pixel_position,
7373 &gutter_dimensions,
7374 &gutter_hitbox,
7375 &mut breakpoint_rows,
7376 &display_hunks,
7377 window,
7378 cx,
7379 );
7380 }
7381 }
7382 }
7383 }
7384 }
7385 }
7386
7387 self.layout_gutter_menu(
7388 line_height,
7389 &text_hitbox,
7390 content_origin,
7391 scroll_pixel_position,
7392 gutter_dimensions.width - gutter_dimensions.left_padding,
7393 window,
7394 cx,
7395 );
7396
7397 let test_indicators = if gutter_settings.runnables {
7398 self.layout_run_indicators(
7399 line_height,
7400 start_row..end_row,
7401 &row_infos,
7402 scroll_pixel_position,
7403 &gutter_dimensions,
7404 &gutter_hitbox,
7405 &display_hunks,
7406 &snapshot,
7407 &mut breakpoint_rows,
7408 window,
7409 cx,
7410 )
7411 } else {
7412 Vec::new()
7413 };
7414
7415 let show_breakpoints = snapshot
7416 .show_breakpoints
7417 .unwrap_or(gutter_settings.breakpoints);
7418 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7419 self.layout_breakpoints(
7420 line_height,
7421 start_row..end_row,
7422 scroll_pixel_position,
7423 &gutter_dimensions,
7424 &gutter_hitbox,
7425 &display_hunks,
7426 &snapshot,
7427 breakpoint_rows,
7428 &row_infos,
7429 window,
7430 cx,
7431 )
7432 } else {
7433 vec![]
7434 };
7435
7436 self.layout_signature_help(
7437 &hitbox,
7438 &text_hitbox,
7439 content_origin,
7440 scroll_pixel_position,
7441 newest_selection_head,
7442 start_row,
7443 &line_layouts,
7444 line_height,
7445 em_width,
7446 window,
7447 cx,
7448 );
7449
7450 if !cx.has_active_drag() {
7451 self.layout_hover_popovers(
7452 &snapshot,
7453 &hitbox,
7454 &text_hitbox,
7455 start_row..end_row,
7456 content_origin,
7457 scroll_pixel_position,
7458 &line_layouts,
7459 line_height,
7460 em_width,
7461 window,
7462 cx,
7463 );
7464 }
7465
7466 let mouse_context_menu = self.layout_mouse_context_menu(
7467 &snapshot,
7468 start_row..end_row,
7469 content_origin,
7470 window,
7471 cx,
7472 );
7473
7474 window.with_element_namespace("crease_toggles", |window| {
7475 self.prepaint_crease_toggles(
7476 &mut crease_toggles,
7477 line_height,
7478 &gutter_dimensions,
7479 gutter_settings,
7480 scroll_pixel_position,
7481 &gutter_hitbox,
7482 window,
7483 cx,
7484 )
7485 });
7486
7487 window.with_element_namespace("expand_toggles", |window| {
7488 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7489 });
7490
7491 let invisible_symbol_font_size = font_size / 2.;
7492 let tab_invisible = window
7493 .text_system()
7494 .shape_line(
7495 "→".into(),
7496 invisible_symbol_font_size,
7497 &[TextRun {
7498 len: "→".len(),
7499 font: self.style.text.font(),
7500 color: cx.theme().colors().editor_invisible,
7501 background_color: None,
7502 underline: None,
7503 strikethrough: None,
7504 }],
7505 )
7506 .unwrap();
7507 let space_invisible = window
7508 .text_system()
7509 .shape_line(
7510 "•".into(),
7511 invisible_symbol_font_size,
7512 &[TextRun {
7513 len: "•".len(),
7514 font: self.style.text.font(),
7515 color: cx.theme().colors().editor_invisible,
7516 background_color: None,
7517 underline: None,
7518 strikethrough: None,
7519 }],
7520 )
7521 .unwrap();
7522
7523 let mode = snapshot.mode;
7524
7525 let position_map = Rc::new(PositionMap {
7526 size: bounds.size,
7527 visible_row_range,
7528 scroll_pixel_position,
7529 scroll_max,
7530 line_layouts,
7531 line_height,
7532 em_width,
7533 em_advance,
7534 snapshot,
7535 gutter_hitbox: gutter_hitbox.clone(),
7536 text_hitbox: text_hitbox.clone(),
7537 });
7538
7539 self.editor.update(cx, |editor, _| {
7540 editor.last_position_map = Some(position_map.clone())
7541 });
7542
7543 let diff_hunk_controls = if is_read_only {
7544 vec![]
7545 } else {
7546 self.layout_diff_hunk_controls(
7547 start_row..end_row,
7548 &row_infos,
7549 &text_hitbox,
7550 &position_map,
7551 newest_selection_head,
7552 line_height,
7553 scroll_pixel_position,
7554 &display_hunks,
7555 self.editor.clone(),
7556 window,
7557 cx,
7558 )
7559 };
7560
7561 EditorLayout {
7562 mode,
7563 position_map,
7564 visible_display_row_range: start_row..end_row,
7565 wrap_guides,
7566 indent_guides,
7567 hitbox,
7568 gutter_hitbox,
7569 display_hunks,
7570 content_origin,
7571 scrollbars_layout,
7572 active_rows,
7573 highlighted_rows,
7574 highlighted_ranges,
7575 highlighted_gutter_ranges,
7576 redacted_ranges,
7577 line_elements,
7578 line_numbers,
7579 blamed_display_rows,
7580 inline_diagnostics,
7581 inline_blame,
7582 blocks,
7583 cursors,
7584 visible_cursors,
7585 selections,
7586 inline_completion_popover,
7587 diff_hunk_controls,
7588 mouse_context_menu,
7589 test_indicators,
7590 breakpoints,
7591 code_actions_indicator,
7592 crease_toggles,
7593 crease_trailers,
7594 tab_invisible,
7595 space_invisible,
7596 sticky_buffer_header,
7597 expand_toggles,
7598 }
7599 })
7600 })
7601 })
7602 }
7603
7604 fn paint(
7605 &mut self,
7606 _: Option<&GlobalElementId>,
7607 bounds: Bounds<gpui::Pixels>,
7608 _: &mut Self::RequestLayoutState,
7609 layout: &mut Self::PrepaintState,
7610 window: &mut Window,
7611 cx: &mut App,
7612 ) {
7613 let focus_handle = self.editor.focus_handle(cx);
7614 let key_context = self
7615 .editor
7616 .update(cx, |editor, cx| editor.key_context(window, cx));
7617
7618 window.set_key_context(key_context);
7619 window.handle_input(
7620 &focus_handle,
7621 ElementInputHandler::new(bounds, self.editor.clone()),
7622 cx,
7623 );
7624 self.register_actions(window, cx);
7625 self.register_key_listeners(window, cx, layout);
7626
7627 let text_style = TextStyleRefinement {
7628 font_size: Some(self.style.text.font_size),
7629 line_height: Some(self.style.text.line_height),
7630 ..Default::default()
7631 };
7632 let rem_size = self.rem_size(cx);
7633 window.with_rem_size(rem_size, |window| {
7634 window.with_text_style(Some(text_style), |window| {
7635 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7636 self.paint_mouse_listeners(layout, window, cx);
7637 self.paint_background(layout, window, cx);
7638 self.paint_indent_guides(layout, window, cx);
7639
7640 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7641 self.paint_blamed_display_rows(layout, window, cx);
7642 self.paint_line_numbers(layout, window, cx);
7643 }
7644
7645 self.paint_text(layout, window, cx);
7646
7647 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7648 self.paint_gutter_highlights(layout, window, cx);
7649 self.paint_gutter_indicators(layout, window, cx);
7650 }
7651
7652 if !layout.blocks.is_empty() {
7653 window.with_element_namespace("blocks", |window| {
7654 self.paint_blocks(layout, window, cx);
7655 });
7656 }
7657
7658 window.with_element_namespace("blocks", |window| {
7659 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7660 sticky_header.paint(window, cx)
7661 }
7662 });
7663
7664 self.paint_scrollbars(layout, window, cx);
7665 self.paint_inline_completion_popover(layout, window, cx);
7666 self.paint_mouse_context_menu(layout, window, cx);
7667 });
7668 })
7669 })
7670 }
7671}
7672
7673pub(super) fn gutter_bounds(
7674 editor_bounds: Bounds<Pixels>,
7675 gutter_dimensions: GutterDimensions,
7676) -> Bounds<Pixels> {
7677 Bounds {
7678 origin: editor_bounds.origin,
7679 size: size(gutter_dimensions.width, editor_bounds.size.height),
7680 }
7681}
7682
7683/// Holds information required for layouting the editor scrollbars.
7684struct ScrollbarLayoutInformation {
7685 /// The bounds of the editor area (excluding the content offset).
7686 editor_bounds: Bounds<Pixels>,
7687 /// The available range to scroll within the document.
7688 scroll_range: Size<Pixels>,
7689 /// The space available for one glyph in the editor.
7690 glyph_grid_cell: Size<Pixels>,
7691}
7692
7693impl ScrollbarLayoutInformation {
7694 pub fn new(
7695 editor_bounds: Bounds<Pixels>,
7696 glyph_grid_cell: Size<Pixels>,
7697 document_size: Size<Pixels>,
7698 longest_line_blame_width: Pixels,
7699 scrollbar_width: Pixels,
7700 editor_width: Pixels,
7701 settings: &EditorSettings,
7702 ) -> Self {
7703 let vertical_overscroll = match settings.scroll_beyond_last_line {
7704 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
7705 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7706 ScrollBeyondLastLine::VerticalScrollMargin => {
7707 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7708 }
7709 };
7710
7711 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7712 glyph_grid_cell.width + scrollbar_width
7713 } else {
7714 px(0.0)
7715 };
7716
7717 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7718
7719 let scroll_range = document_size + overscroll;
7720
7721 ScrollbarLayoutInformation {
7722 editor_bounds,
7723 scroll_range,
7724 glyph_grid_cell,
7725 }
7726 }
7727}
7728
7729impl IntoElement for EditorElement {
7730 type Element = Self;
7731
7732 fn into_element(self) -> Self::Element {
7733 self
7734 }
7735}
7736
7737pub struct EditorLayout {
7738 position_map: Rc<PositionMap>,
7739 hitbox: Hitbox,
7740 gutter_hitbox: Hitbox,
7741 content_origin: gpui::Point<Pixels>,
7742 scrollbars_layout: Option<EditorScrollbars>,
7743 mode: EditorMode,
7744 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7745 indent_guides: Option<Vec<IndentGuideLayout>>,
7746 visible_display_row_range: Range<DisplayRow>,
7747 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7748 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7749 line_elements: SmallVec<[AnyElement; 1]>,
7750 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7751 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7752 blamed_display_rows: Option<Vec<AnyElement>>,
7753 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7754 inline_blame: Option<AnyElement>,
7755 blocks: Vec<BlockLayout>,
7756 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7757 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7758 redacted_ranges: Vec<Range<DisplayPoint>>,
7759 cursors: Vec<(DisplayPoint, Hsla)>,
7760 visible_cursors: Vec<CursorLayout>,
7761 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7762 code_actions_indicator: Option<AnyElement>,
7763 test_indicators: Vec<AnyElement>,
7764 breakpoints: Vec<AnyElement>,
7765 crease_toggles: Vec<Option<AnyElement>>,
7766 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7767 diff_hunk_controls: Vec<AnyElement>,
7768 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7769 inline_completion_popover: Option<AnyElement>,
7770 mouse_context_menu: Option<AnyElement>,
7771 tab_invisible: ShapedLine,
7772 space_invisible: ShapedLine,
7773 sticky_buffer_header: Option<AnyElement>,
7774}
7775
7776impl EditorLayout {
7777 fn line_end_overshoot(&self) -> Pixels {
7778 0.15 * self.position_map.line_height
7779 }
7780}
7781
7782struct LineNumberLayout {
7783 shaped_line: ShapedLine,
7784 hitbox: Option<Hitbox>,
7785}
7786
7787struct ColoredRange<T> {
7788 start: T,
7789 end: T,
7790 color: Hsla,
7791}
7792
7793impl Along for ScrollbarAxes {
7794 type Unit = bool;
7795
7796 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7797 match axis {
7798 ScrollbarAxis::Horizontal => self.horizontal,
7799 ScrollbarAxis::Vertical => self.vertical,
7800 }
7801 }
7802
7803 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
7804 match axis {
7805 ScrollbarAxis::Horizontal => ScrollbarAxes {
7806 horizontal: f(self.horizontal),
7807 vertical: self.vertical,
7808 },
7809 ScrollbarAxis::Vertical => ScrollbarAxes {
7810 horizontal: self.horizontal,
7811 vertical: f(self.vertical),
7812 },
7813 }
7814 }
7815}
7816
7817#[derive(Clone)]
7818struct EditorScrollbars {
7819 pub vertical: Option<ScrollbarLayout>,
7820 pub horizontal: Option<ScrollbarLayout>,
7821 pub visible: bool,
7822}
7823
7824impl EditorScrollbars {
7825 pub fn from_scrollbar_axes(
7826 settings_visibility: ScrollbarAxes,
7827 layout_information: &ScrollbarLayoutInformation,
7828 content_offset: gpui::Point<Pixels>,
7829 scroll_position: gpui::Point<f32>,
7830 scrollbar_width: Pixels,
7831 show_scrollbars: bool,
7832 window: &mut Window,
7833 ) -> Self {
7834 let ScrollbarLayoutInformation {
7835 editor_bounds,
7836 scroll_range,
7837 glyph_grid_cell,
7838 } = layout_information;
7839
7840 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
7841 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
7842 Corner::BottomLeft,
7843 editor_bounds.bottom_left(),
7844 size(
7845 if settings_visibility.vertical {
7846 editor_bounds.size.width - scrollbar_width
7847 } else {
7848 editor_bounds.size.width
7849 },
7850 scrollbar_width,
7851 ),
7852 ),
7853 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
7854 Corner::TopRight,
7855 editor_bounds.top_right(),
7856 size(scrollbar_width, editor_bounds.size.height),
7857 ),
7858 };
7859
7860 let mut create_scrollbar_layout = |axis| {
7861 settings_visibility
7862 .along(axis)
7863 .then(|| {
7864 (
7865 editor_bounds.size.along(axis) - content_offset.along(axis),
7866 scroll_range.along(axis),
7867 )
7868 })
7869 .filter(|(editor_content_size, scroll_range)| {
7870 // The scrollbar should only be rendered if the content does
7871 // not entirely fit into the editor
7872 // However, this only applies to the horizontal scrollbar, as information about the
7873 // vertical scrollbar layout is always needed for scrollbar diagnostics.
7874 axis != ScrollbarAxis::Horizontal || editor_content_size < scroll_range
7875 })
7876 .map(|(editor_content_size, scroll_range)| {
7877 ScrollbarLayout::new(
7878 window.insert_hitbox(scrollbar_bounds_for(axis), false),
7879 editor_content_size,
7880 scroll_range,
7881 glyph_grid_cell.along(axis),
7882 content_offset.along(axis),
7883 scroll_position.along(axis),
7884 axis,
7885 )
7886 })
7887 };
7888
7889 Self {
7890 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
7891 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
7892 visible: show_scrollbars,
7893 }
7894 }
7895
7896 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
7897 [
7898 (&self.vertical, ScrollbarAxis::Vertical),
7899 (&self.horizontal, ScrollbarAxis::Horizontal),
7900 ]
7901 .into_iter()
7902 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
7903 }
7904
7905 /// Returns the currently hovered scrollbar axis, if any.
7906 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
7907 self.iter_scrollbars()
7908 .find(|s| s.0.hitbox.is_hovered(window))
7909 }
7910}
7911
7912#[derive(Clone)]
7913struct ScrollbarLayout {
7914 hitbox: Hitbox,
7915 visible_range: Range<f32>,
7916 text_unit_size: Pixels,
7917 content_offset: Pixels,
7918 thumb_size: Pixels,
7919 axis: ScrollbarAxis,
7920}
7921
7922impl ScrollbarLayout {
7923 const BORDER_WIDTH: Pixels = px(1.0);
7924 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7925 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7926 const MIN_THUMB_SIZE: Pixels = px(25.0);
7927
7928 fn new(
7929 scrollbar_track_hitbox: Hitbox,
7930 editor_content_size: Pixels,
7931 scroll_range: Pixels,
7932 glyph_space: Pixels,
7933 content_offset: Pixels,
7934 scroll_position: f32,
7935 axis: ScrollbarAxis,
7936 ) -> Self {
7937 let track_bounds = scrollbar_track_hitbox.bounds;
7938 // The length of the track available to the scrollbar thumb. We deliberately
7939 // exclude the content size here so that the thumb aligns with the content.
7940 let track_length = track_bounds.size.along(axis) - content_offset;
7941
7942 let text_units_per_page = editor_content_size / glyph_space;
7943 let visible_range = scroll_position..scroll_position + text_units_per_page;
7944 let total_text_units = scroll_range / glyph_space;
7945
7946 let thumb_percentage = text_units_per_page / total_text_units;
7947 let thumb_size = (track_length * thumb_percentage)
7948 .max(ScrollbarLayout::MIN_THUMB_SIZE)
7949 .min(track_length);
7950 let text_unit_size =
7951 (track_length - thumb_size) / (total_text_units - text_units_per_page).max(0.);
7952
7953 ScrollbarLayout {
7954 hitbox: scrollbar_track_hitbox,
7955 visible_range,
7956 text_unit_size,
7957 content_offset,
7958 thumb_size,
7959 axis,
7960 }
7961 }
7962
7963 fn thumb_bounds(&self) -> Bounds<Pixels> {
7964 let scrollbar_track = &self.hitbox.bounds;
7965 Bounds::new(
7966 scrollbar_track
7967 .origin
7968 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
7969 scrollbar_track
7970 .size
7971 .apply_along(self.axis, |_| self.thumb_size),
7972 )
7973 }
7974
7975 fn thumb_origin(&self, origin: Pixels) -> Pixels {
7976 origin + self.content_offset + self.visible_range.start * self.text_unit_size
7977 }
7978
7979 fn marker_quads_for_ranges(
7980 &self,
7981 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7982 column: Option<usize>,
7983 ) -> Vec<PaintQuad> {
7984 struct MinMax {
7985 min: Pixels,
7986 max: Pixels,
7987 }
7988 let (x_range, height_limit) = if let Some(column) = column {
7989 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7990 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7991 let end = start + column_width;
7992 (
7993 Range { start, end },
7994 MinMax {
7995 min: Self::MIN_MARKER_HEIGHT,
7996 max: px(f32::MAX),
7997 },
7998 )
7999 } else {
8000 (
8001 Range {
8002 start: Self::BORDER_WIDTH,
8003 end: self.hitbox.size.width,
8004 },
8005 MinMax {
8006 min: Self::LINE_MARKER_HEIGHT,
8007 max: Self::LINE_MARKER_HEIGHT,
8008 },
8009 )
8010 };
8011
8012 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
8013 let mut pixel_ranges = row_ranges
8014 .into_iter()
8015 .map(|range| {
8016 let start_y = row_to_y(range.start);
8017 let end_y = row_to_y(range.end)
8018 + self
8019 .text_unit_size
8020 .max(height_limit.min)
8021 .min(height_limit.max);
8022 ColoredRange {
8023 start: start_y,
8024 end: end_y,
8025 color: range.color,
8026 }
8027 })
8028 .peekable();
8029
8030 let mut quads = Vec::new();
8031 while let Some(mut pixel_range) = pixel_ranges.next() {
8032 while let Some(next_pixel_range) = pixel_ranges.peek() {
8033 if pixel_range.end >= next_pixel_range.start - px(1.0)
8034 && pixel_range.color == next_pixel_range.color
8035 {
8036 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8037 pixel_ranges.next();
8038 } else {
8039 break;
8040 }
8041 }
8042
8043 let bounds = Bounds::from_corners(
8044 point(x_range.start, pixel_range.start),
8045 point(x_range.end, pixel_range.end),
8046 );
8047 quads.push(quad(
8048 bounds,
8049 Corners::default(),
8050 pixel_range.color,
8051 Edges::default(),
8052 Hsla::transparent_black(),
8053 BorderStyle::default(),
8054 ));
8055 }
8056
8057 quads
8058 }
8059}
8060
8061struct CreaseTrailerLayout {
8062 element: AnyElement,
8063 bounds: Bounds<Pixels>,
8064}
8065
8066pub(crate) struct PositionMap {
8067 pub size: Size<Pixels>,
8068 pub line_height: Pixels,
8069 pub scroll_pixel_position: gpui::Point<Pixels>,
8070 pub scroll_max: gpui::Point<f32>,
8071 pub em_width: Pixels,
8072 pub em_advance: Pixels,
8073 pub visible_row_range: Range<DisplayRow>,
8074 pub line_layouts: Vec<LineWithInvisibles>,
8075 pub snapshot: EditorSnapshot,
8076 pub text_hitbox: Hitbox,
8077 pub gutter_hitbox: Hitbox,
8078}
8079
8080#[derive(Debug, Copy, Clone)]
8081pub struct PointForPosition {
8082 pub previous_valid: DisplayPoint,
8083 pub next_valid: DisplayPoint,
8084 pub exact_unclipped: DisplayPoint,
8085 pub column_overshoot_after_line_end: u32,
8086}
8087
8088impl PointForPosition {
8089 pub fn as_valid(&self) -> Option<DisplayPoint> {
8090 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8091 Some(self.previous_valid)
8092 } else {
8093 None
8094 }
8095 }
8096}
8097
8098impl PositionMap {
8099 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8100 let text_bounds = self.text_hitbox.bounds;
8101 let scroll_position = self.snapshot.scroll_position();
8102 let position = position - text_bounds.origin;
8103 let y = position.y.max(px(0.)).min(self.size.height);
8104 let x = position.x + (scroll_position.x * self.em_width);
8105 let row = ((y / self.line_height) + scroll_position.y) as u32;
8106
8107 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8108 .line_layouts
8109 .get(row as usize - scroll_position.y as usize)
8110 {
8111 if let Some(ix) = line.index_for_x(x) {
8112 (ix as u32, px(0.))
8113 } else {
8114 (line.len as u32, px(0.).max(x - line.width))
8115 }
8116 } else {
8117 (0, x)
8118 };
8119
8120 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8121 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8122 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8123
8124 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8125 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8126 PointForPosition {
8127 previous_valid,
8128 next_valid,
8129 exact_unclipped,
8130 column_overshoot_after_line_end,
8131 }
8132 }
8133}
8134
8135struct BlockLayout {
8136 id: BlockId,
8137 x_offset: Pixels,
8138 row: Option<DisplayRow>,
8139 element: AnyElement,
8140 available_space: Size<AvailableSpace>,
8141 style: BlockStyle,
8142 overlaps_gutter: bool,
8143 is_buffer_header: bool,
8144}
8145
8146pub fn layout_line(
8147 row: DisplayRow,
8148 snapshot: &EditorSnapshot,
8149 style: &EditorStyle,
8150 text_width: Pixels,
8151 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8152 window: &mut Window,
8153 cx: &mut App,
8154) -> LineWithInvisibles {
8155 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8156 LineWithInvisibles::from_chunks(
8157 chunks,
8158 &style,
8159 MAX_LINE_LEN,
8160 1,
8161 snapshot.mode,
8162 text_width,
8163 is_row_soft_wrapped,
8164 window,
8165 cx,
8166 )
8167 .pop()
8168 .unwrap()
8169}
8170
8171#[derive(Debug)]
8172pub struct IndentGuideLayout {
8173 origin: gpui::Point<Pixels>,
8174 length: Pixels,
8175 single_indent_width: Pixels,
8176 depth: u32,
8177 active: bool,
8178 settings: IndentGuideSettings,
8179}
8180
8181pub struct CursorLayout {
8182 origin: gpui::Point<Pixels>,
8183 block_width: Pixels,
8184 line_height: Pixels,
8185 color: Hsla,
8186 shape: CursorShape,
8187 block_text: Option<ShapedLine>,
8188 cursor_name: Option<AnyElement>,
8189}
8190
8191#[derive(Debug)]
8192pub struct CursorName {
8193 string: SharedString,
8194 color: Hsla,
8195 is_top_row: bool,
8196}
8197
8198impl CursorLayout {
8199 pub fn new(
8200 origin: gpui::Point<Pixels>,
8201 block_width: Pixels,
8202 line_height: Pixels,
8203 color: Hsla,
8204 shape: CursorShape,
8205 block_text: Option<ShapedLine>,
8206 ) -> CursorLayout {
8207 CursorLayout {
8208 origin,
8209 block_width,
8210 line_height,
8211 color,
8212 shape,
8213 block_text,
8214 cursor_name: None,
8215 }
8216 }
8217
8218 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8219 Bounds {
8220 origin: self.origin + origin,
8221 size: size(self.block_width, self.line_height),
8222 }
8223 }
8224
8225 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8226 match self.shape {
8227 CursorShape::Bar => Bounds {
8228 origin: self.origin + origin,
8229 size: size(px(2.0), self.line_height),
8230 },
8231 CursorShape::Block | CursorShape::Hollow => Bounds {
8232 origin: self.origin + origin,
8233 size: size(self.block_width, self.line_height),
8234 },
8235 CursorShape::Underline => Bounds {
8236 origin: self.origin
8237 + origin
8238 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8239 size: size(self.block_width, px(2.0)),
8240 },
8241 }
8242 }
8243
8244 pub fn layout(
8245 &mut self,
8246 origin: gpui::Point<Pixels>,
8247 cursor_name: Option<CursorName>,
8248 window: &mut Window,
8249 cx: &mut App,
8250 ) {
8251 if let Some(cursor_name) = cursor_name {
8252 let bounds = self.bounds(origin);
8253 let text_size = self.line_height / 1.5;
8254
8255 let name_origin = if cursor_name.is_top_row {
8256 point(bounds.right() - px(1.), bounds.top())
8257 } else {
8258 match self.shape {
8259 CursorShape::Bar => point(
8260 bounds.right() - px(2.),
8261 bounds.top() - text_size / 2. - px(1.),
8262 ),
8263 _ => point(
8264 bounds.right() - px(1.),
8265 bounds.top() - text_size / 2. - px(1.),
8266 ),
8267 }
8268 };
8269 let mut name_element = div()
8270 .bg(self.color)
8271 .text_size(text_size)
8272 .px_0p5()
8273 .line_height(text_size + px(2.))
8274 .text_color(cursor_name.color)
8275 .child(cursor_name.string.clone())
8276 .into_any_element();
8277
8278 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8279
8280 self.cursor_name = Some(name_element);
8281 }
8282 }
8283
8284 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8285 let bounds = self.bounds(origin);
8286
8287 //Draw background or border quad
8288 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8289 outline(bounds, self.color, BorderStyle::Solid)
8290 } else {
8291 fill(bounds, self.color)
8292 };
8293
8294 if let Some(name) = &mut self.cursor_name {
8295 name.paint(window, cx);
8296 }
8297
8298 window.paint_quad(cursor);
8299
8300 if let Some(block_text) = &self.block_text {
8301 block_text
8302 .paint(self.origin + origin, self.line_height, window, cx)
8303 .log_err();
8304 }
8305 }
8306
8307 pub fn shape(&self) -> CursorShape {
8308 self.shape
8309 }
8310}
8311
8312#[derive(Debug)]
8313pub struct HighlightedRange {
8314 pub start_y: Pixels,
8315 pub line_height: Pixels,
8316 pub lines: Vec<HighlightedRangeLine>,
8317 pub color: Hsla,
8318 pub corner_radius: Pixels,
8319}
8320
8321#[derive(Debug)]
8322pub struct HighlightedRangeLine {
8323 pub start_x: Pixels,
8324 pub end_x: Pixels,
8325}
8326
8327impl HighlightedRange {
8328 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8329 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8330 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8331 self.paint_lines(
8332 self.start_y + self.line_height,
8333 &self.lines[1..],
8334 bounds,
8335 window,
8336 );
8337 } else {
8338 self.paint_lines(self.start_y, &self.lines, bounds, window);
8339 }
8340 }
8341
8342 fn paint_lines(
8343 &self,
8344 start_y: Pixels,
8345 lines: &[HighlightedRangeLine],
8346 _bounds: Bounds<Pixels>,
8347 window: &mut Window,
8348 ) {
8349 if lines.is_empty() {
8350 return;
8351 }
8352
8353 let first_line = lines.first().unwrap();
8354 let last_line = lines.last().unwrap();
8355
8356 let first_top_left = point(first_line.start_x, start_y);
8357 let first_top_right = point(first_line.end_x, start_y);
8358
8359 let curve_height = point(Pixels::ZERO, self.corner_radius);
8360 let curve_width = |start_x: Pixels, end_x: Pixels| {
8361 let max = (end_x - start_x) / 2.;
8362 let width = if max < self.corner_radius {
8363 max
8364 } else {
8365 self.corner_radius
8366 };
8367
8368 point(width, Pixels::ZERO)
8369 };
8370
8371 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8372 let mut builder = gpui::PathBuilder::fill();
8373 builder.move_to(first_top_right - top_curve_width);
8374 builder.curve_to(first_top_right + curve_height, first_top_right);
8375
8376 let mut iter = lines.iter().enumerate().peekable();
8377 while let Some((ix, line)) = iter.next() {
8378 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8379
8380 if let Some((_, next_line)) = iter.peek() {
8381 let next_top_right = point(next_line.end_x, bottom_right.y);
8382
8383 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8384 Ordering::Equal => {
8385 builder.line_to(bottom_right);
8386 }
8387 Ordering::Less => {
8388 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8389 builder.line_to(bottom_right - curve_height);
8390 if self.corner_radius > Pixels::ZERO {
8391 builder.curve_to(bottom_right - curve_width, bottom_right);
8392 }
8393 builder.line_to(next_top_right + curve_width);
8394 if self.corner_radius > Pixels::ZERO {
8395 builder.curve_to(next_top_right + curve_height, next_top_right);
8396 }
8397 }
8398 Ordering::Greater => {
8399 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8400 builder.line_to(bottom_right - curve_height);
8401 if self.corner_radius > Pixels::ZERO {
8402 builder.curve_to(bottom_right + curve_width, bottom_right);
8403 }
8404 builder.line_to(next_top_right - curve_width);
8405 if self.corner_radius > Pixels::ZERO {
8406 builder.curve_to(next_top_right + curve_height, next_top_right);
8407 }
8408 }
8409 }
8410 } else {
8411 let curve_width = curve_width(line.start_x, line.end_x);
8412 builder.line_to(bottom_right - curve_height);
8413 if self.corner_radius > Pixels::ZERO {
8414 builder.curve_to(bottom_right - curve_width, bottom_right);
8415 }
8416
8417 let bottom_left = point(line.start_x, bottom_right.y);
8418 builder.line_to(bottom_left + curve_width);
8419 if self.corner_radius > Pixels::ZERO {
8420 builder.curve_to(bottom_left - curve_height, bottom_left);
8421 }
8422 }
8423 }
8424
8425 if first_line.start_x > last_line.start_x {
8426 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8427 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8428 builder.line_to(second_top_left + curve_height);
8429 if self.corner_radius > Pixels::ZERO {
8430 builder.curve_to(second_top_left + curve_width, second_top_left);
8431 }
8432 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8433 builder.line_to(first_bottom_left - curve_width);
8434 if self.corner_radius > Pixels::ZERO {
8435 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8436 }
8437 }
8438
8439 builder.line_to(first_top_left + curve_height);
8440 if self.corner_radius > Pixels::ZERO {
8441 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8442 }
8443 builder.line_to(first_top_right - top_curve_width);
8444
8445 if let Ok(path) = builder.build() {
8446 window.paint_path(path, self.color);
8447 }
8448 }
8449}
8450
8451enum CursorPopoverType {
8452 CodeContextMenu,
8453 EditPrediction,
8454}
8455
8456pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8457 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
8458}
8459
8460fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8461 (delta.pow(1.2) / 300.0).into()
8462}
8463
8464pub fn register_action<T: Action>(
8465 editor: &Entity<Editor>,
8466 window: &mut Window,
8467 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8468) {
8469 let editor = editor.clone();
8470 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8471 let action = action.downcast_ref().unwrap();
8472 if phase == DispatchPhase::Bubble {
8473 editor.update(cx, |editor, cx| {
8474 listener(editor, action, window, cx);
8475 })
8476 }
8477 })
8478}
8479
8480fn compute_auto_height_layout(
8481 editor: &mut Editor,
8482 max_lines: usize,
8483 max_line_number_width: Pixels,
8484 known_dimensions: Size<Option<Pixels>>,
8485 available_width: AvailableSpace,
8486 window: &mut Window,
8487 cx: &mut Context<Editor>,
8488) -> Option<Size<Pixels>> {
8489 let width = known_dimensions.width.or({
8490 if let AvailableSpace::Definite(available_width) = available_width {
8491 Some(available_width)
8492 } else {
8493 None
8494 }
8495 })?;
8496 if let Some(height) = known_dimensions.height {
8497 return Some(size(width, height));
8498 }
8499
8500 let style = editor.style.as_ref().unwrap();
8501 let font_id = window.text_system().resolve_font(&style.text.font());
8502 let font_size = style.text.font_size.to_pixels(window.rem_size());
8503 let line_height = style.text.line_height_in_pixels(window.rem_size());
8504 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8505
8506 let mut snapshot = editor.snapshot(window, cx);
8507 let gutter_dimensions = snapshot
8508 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8509 .unwrap_or_default();
8510
8511 editor.gutter_dimensions = gutter_dimensions;
8512 let text_width = width - gutter_dimensions.width;
8513 let overscroll = size(em_width, px(0.));
8514
8515 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8516 if editor.set_wrap_width(Some(editor_width), cx) {
8517 snapshot = editor.snapshot(window, cx);
8518 }
8519
8520 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8521 let height = scroll_height
8522 .max(line_height)
8523 .min(line_height * max_lines as f32);
8524
8525 Some(size(width, height))
8526}
8527
8528#[cfg(test)]
8529mod tests {
8530 use super::*;
8531 use crate::{
8532 Editor, MultiBuffer,
8533 display_map::{BlockPlacement, BlockProperties},
8534 editor_tests::{init_test, update_test_language_settings},
8535 };
8536 use gpui::{TestAppContext, VisualTestContext};
8537 use language::language_settings;
8538 use log::info;
8539 use std::num::NonZeroU32;
8540 use util::test::sample_text;
8541
8542 #[gpui::test]
8543 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8544 init_test(cx, |_| {});
8545 let window = cx.add_window(|window, cx| {
8546 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8547 Editor::new(EditorMode::full(), buffer, None, window, cx)
8548 });
8549
8550 let editor = window.root(cx).unwrap();
8551 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8552 let line_height = window
8553 .update(cx, |_, window, _| {
8554 style.text.line_height_in_pixels(window.rem_size())
8555 })
8556 .unwrap();
8557 let element = EditorElement::new(&editor, style);
8558 let snapshot = window
8559 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8560 .unwrap();
8561
8562 let layouts = cx
8563 .update_window(*window, |_, window, cx| {
8564 element.layout_line_numbers(
8565 None,
8566 GutterDimensions {
8567 left_padding: Pixels::ZERO,
8568 right_padding: Pixels::ZERO,
8569 width: px(30.0),
8570 margin: Pixels::ZERO,
8571 git_blame_entries_width: None,
8572 },
8573 line_height,
8574 gpui::Point::default(),
8575 DisplayRow(0)..DisplayRow(6),
8576 &(0..6)
8577 .map(|row| RowInfo {
8578 buffer_row: Some(row),
8579 ..Default::default()
8580 })
8581 .collect::<Vec<_>>(),
8582 &BTreeMap::default(),
8583 Some(DisplayPoint::new(DisplayRow(0), 0)),
8584 &snapshot,
8585 window,
8586 cx,
8587 )
8588 })
8589 .unwrap();
8590 assert_eq!(layouts.len(), 6);
8591
8592 let relative_rows = window
8593 .update(cx, |editor, window, cx| {
8594 let snapshot = editor.snapshot(window, cx);
8595 element.calculate_relative_line_numbers(
8596 &snapshot,
8597 &(DisplayRow(0)..DisplayRow(6)),
8598 Some(DisplayRow(3)),
8599 )
8600 })
8601 .unwrap();
8602 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8603 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8604 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8605 // current line has no relative number
8606 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8607 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8608
8609 // works if cursor is before screen
8610 let relative_rows = window
8611 .update(cx, |editor, window, cx| {
8612 let snapshot = editor.snapshot(window, cx);
8613 element.calculate_relative_line_numbers(
8614 &snapshot,
8615 &(DisplayRow(3)..DisplayRow(6)),
8616 Some(DisplayRow(1)),
8617 )
8618 })
8619 .unwrap();
8620 assert_eq!(relative_rows.len(), 3);
8621 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8622 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8623 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8624
8625 // works if cursor is after screen
8626 let relative_rows = window
8627 .update(cx, |editor, window, cx| {
8628 let snapshot = editor.snapshot(window, cx);
8629 element.calculate_relative_line_numbers(
8630 &snapshot,
8631 &(DisplayRow(0)..DisplayRow(3)),
8632 Some(DisplayRow(6)),
8633 )
8634 })
8635 .unwrap();
8636 assert_eq!(relative_rows.len(), 3);
8637 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8638 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8639 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8640 }
8641
8642 #[gpui::test]
8643 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8644 init_test(cx, |_| {});
8645
8646 let window = cx.add_window(|window, cx| {
8647 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8648 Editor::new(EditorMode::full(), buffer, None, window, cx)
8649 });
8650 let cx = &mut VisualTestContext::from_window(*window, cx);
8651 let editor = window.root(cx).unwrap();
8652 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8653
8654 window
8655 .update(cx, |editor, window, cx| {
8656 editor.cursor_shape = CursorShape::Block;
8657 editor.change_selections(None, window, cx, |s| {
8658 s.select_ranges([
8659 Point::new(0, 0)..Point::new(1, 0),
8660 Point::new(3, 2)..Point::new(3, 3),
8661 Point::new(5, 6)..Point::new(6, 0),
8662 ]);
8663 });
8664 })
8665 .unwrap();
8666
8667 let (_, state) = cx.draw(
8668 point(px(500.), px(500.)),
8669 size(px(500.), px(500.)),
8670 |_, _| EditorElement::new(&editor, style),
8671 );
8672
8673 assert_eq!(state.selections.len(), 1);
8674 let local_selections = &state.selections[0].1;
8675 assert_eq!(local_selections.len(), 3);
8676 // moves cursor back one line
8677 assert_eq!(
8678 local_selections[0].head,
8679 DisplayPoint::new(DisplayRow(0), 6)
8680 );
8681 assert_eq!(
8682 local_selections[0].range,
8683 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8684 );
8685
8686 // moves cursor back one column
8687 assert_eq!(
8688 local_selections[1].range,
8689 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8690 );
8691 assert_eq!(
8692 local_selections[1].head,
8693 DisplayPoint::new(DisplayRow(3), 2)
8694 );
8695
8696 // leaves cursor on the max point
8697 assert_eq!(
8698 local_selections[2].range,
8699 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8700 );
8701 assert_eq!(
8702 local_selections[2].head,
8703 DisplayPoint::new(DisplayRow(6), 0)
8704 );
8705
8706 // active lines does not include 1 (even though the range of the selection does)
8707 assert_eq!(
8708 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8709 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8710 );
8711 }
8712
8713 #[gpui::test]
8714 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8715 init_test(cx, |_| {});
8716
8717 let window = cx.add_window(|window, cx| {
8718 let buffer = MultiBuffer::build_simple("", cx);
8719 Editor::new(EditorMode::full(), buffer, None, window, cx)
8720 });
8721 let cx = &mut VisualTestContext::from_window(*window, cx);
8722 let editor = window.root(cx).unwrap();
8723 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8724 window
8725 .update(cx, |editor, window, cx| {
8726 editor.set_placeholder_text("hello", cx);
8727 editor.insert_blocks(
8728 [BlockProperties {
8729 style: BlockStyle::Fixed,
8730 placement: BlockPlacement::Above(Anchor::min()),
8731 height: Some(3),
8732 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8733 priority: 0,
8734 }],
8735 None,
8736 cx,
8737 );
8738
8739 // Blur the editor so that it displays placeholder text.
8740 window.blur();
8741 })
8742 .unwrap();
8743
8744 let (_, state) = cx.draw(
8745 point(px(500.), px(500.)),
8746 size(px(500.), px(500.)),
8747 |_, _| EditorElement::new(&editor, style),
8748 );
8749 assert_eq!(state.position_map.line_layouts.len(), 4);
8750 assert_eq!(state.line_numbers.len(), 1);
8751 assert_eq!(
8752 state
8753 .line_numbers
8754 .get(&MultiBufferRow(0))
8755 .map(|line_number| line_number.shaped_line.text.as_ref()),
8756 Some("1")
8757 );
8758 }
8759
8760 #[gpui::test]
8761 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8762 const TAB_SIZE: u32 = 4;
8763
8764 let input_text = "\t \t|\t| a b";
8765 let expected_invisibles = vec![
8766 Invisible::Tab {
8767 line_start_offset: 0,
8768 line_end_offset: TAB_SIZE as usize,
8769 },
8770 Invisible::Whitespace {
8771 line_offset: TAB_SIZE as usize,
8772 },
8773 Invisible::Tab {
8774 line_start_offset: TAB_SIZE as usize + 1,
8775 line_end_offset: TAB_SIZE as usize * 2,
8776 },
8777 Invisible::Tab {
8778 line_start_offset: TAB_SIZE as usize * 2 + 1,
8779 line_end_offset: TAB_SIZE as usize * 3,
8780 },
8781 Invisible::Whitespace {
8782 line_offset: TAB_SIZE as usize * 3 + 1,
8783 },
8784 Invisible::Whitespace {
8785 line_offset: TAB_SIZE as usize * 3 + 3,
8786 },
8787 ];
8788 assert_eq!(
8789 expected_invisibles.len(),
8790 input_text
8791 .chars()
8792 .filter(|initial_char| initial_char.is_whitespace())
8793 .count(),
8794 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8795 );
8796
8797 for show_line_numbers in [true, false] {
8798 init_test(cx, |s| {
8799 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8800 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8801 });
8802
8803 let actual_invisibles = collect_invisibles_from_new_editor(
8804 cx,
8805 EditorMode::full(),
8806 input_text,
8807 px(500.0),
8808 show_line_numbers,
8809 );
8810
8811 assert_eq!(expected_invisibles, actual_invisibles);
8812 }
8813 }
8814
8815 #[gpui::test]
8816 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8817 init_test(cx, |s| {
8818 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8819 s.defaults.tab_size = NonZeroU32::new(4);
8820 });
8821
8822 for editor_mode_without_invisibles in [
8823 EditorMode::SingleLine { auto_width: false },
8824 EditorMode::AutoHeight { max_lines: 100 },
8825 ] {
8826 for show_line_numbers in [true, false] {
8827 let invisibles = collect_invisibles_from_new_editor(
8828 cx,
8829 editor_mode_without_invisibles,
8830 "\t\t\t| | a b",
8831 px(500.0),
8832 show_line_numbers,
8833 );
8834 assert!(
8835 invisibles.is_empty(),
8836 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
8837 );
8838 }
8839 }
8840 }
8841
8842 #[gpui::test]
8843 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8844 let tab_size = 4;
8845 let input_text = "a\tbcd ".repeat(9);
8846 let repeated_invisibles = [
8847 Invisible::Tab {
8848 line_start_offset: 1,
8849 line_end_offset: tab_size as usize,
8850 },
8851 Invisible::Whitespace {
8852 line_offset: tab_size as usize + 3,
8853 },
8854 Invisible::Whitespace {
8855 line_offset: tab_size as usize + 4,
8856 },
8857 Invisible::Whitespace {
8858 line_offset: tab_size as usize + 5,
8859 },
8860 Invisible::Whitespace {
8861 line_offset: tab_size as usize + 6,
8862 },
8863 Invisible::Whitespace {
8864 line_offset: tab_size as usize + 7,
8865 },
8866 ];
8867 let expected_invisibles = std::iter::once(repeated_invisibles)
8868 .cycle()
8869 .take(9)
8870 .flatten()
8871 .collect::<Vec<_>>();
8872 assert_eq!(
8873 expected_invisibles.len(),
8874 input_text
8875 .chars()
8876 .filter(|initial_char| initial_char.is_whitespace())
8877 .count(),
8878 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8879 );
8880 info!("Expected invisibles: {expected_invisibles:?}");
8881
8882 init_test(cx, |_| {});
8883
8884 // Put the same string with repeating whitespace pattern into editors of various size,
8885 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8886 let resize_step = 10.0;
8887 let mut editor_width = 200.0;
8888 while editor_width <= 1000.0 {
8889 for show_line_numbers in [true, false] {
8890 update_test_language_settings(cx, |s| {
8891 s.defaults.tab_size = NonZeroU32::new(tab_size);
8892 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8893 s.defaults.preferred_line_length = Some(editor_width as u32);
8894 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8895 });
8896
8897 let actual_invisibles = collect_invisibles_from_new_editor(
8898 cx,
8899 EditorMode::full(),
8900 &input_text,
8901 px(editor_width),
8902 show_line_numbers,
8903 );
8904
8905 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8906 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8907 let mut i = 0;
8908 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8909 i = actual_index;
8910 match expected_invisibles.get(i) {
8911 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8912 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8913 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8914 _ => {
8915 panic!(
8916 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
8917 )
8918 }
8919 },
8920 None => {
8921 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8922 }
8923 }
8924 }
8925 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8926 assert!(
8927 missing_expected_invisibles.is_empty(),
8928 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8929 );
8930
8931 editor_width += resize_step;
8932 }
8933 }
8934 }
8935
8936 fn collect_invisibles_from_new_editor(
8937 cx: &mut TestAppContext,
8938 editor_mode: EditorMode,
8939 input_text: &str,
8940 editor_width: Pixels,
8941 show_line_numbers: bool,
8942 ) -> Vec<Invisible> {
8943 info!(
8944 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8945 editor_width.0
8946 );
8947 let window = cx.add_window(|window, cx| {
8948 let buffer = MultiBuffer::build_simple(input_text, cx);
8949 Editor::new(editor_mode, buffer, None, window, cx)
8950 });
8951 let cx = &mut VisualTestContext::from_window(*window, cx);
8952 let editor = window.root(cx).unwrap();
8953
8954 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8955 window
8956 .update(cx, |editor, _, cx| {
8957 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8958 editor.set_wrap_width(Some(editor_width), cx);
8959 editor.set_show_line_numbers(show_line_numbers, cx);
8960 })
8961 .unwrap();
8962 let (_, state) = cx.draw(
8963 point(px(500.), px(500.)),
8964 size(px(500.), px(500.)),
8965 |_, _| EditorElement::new(&editor, style),
8966 );
8967 state
8968 .position_map
8969 .line_layouts
8970 .iter()
8971 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8972 .cloned()
8973 .collect()
8974 }
8975}