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