1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 inlay_hint_settings,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
18 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
19 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayDiffHunk, DisplayPoint,
20 DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
21 EditorSettings, EditorSnapshot, EditorStyle, FocusedBlock, GoToHunk, GoToPreviousHunk,
22 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlayHintRefreshReason,
23 InlineCompletion, JumpData, LineDown, LineHighlight, LineUp, OpenExcerpts, PageDown, PageUp,
24 Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap,
25 StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR,
26 FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MIN_LINE_NUMBER_DIGITS,
27 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
28};
29use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
30use client::ParticipantIndex;
31use collections::{BTreeMap, HashMap, HashSet};
32use feature_flags::{Debugger, FeatureFlagAppExt};
33use file_icons::FileIcons;
34use git::{blame::BlameEntry, status::FileStatus, Oid};
35use gpui::{
36 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
37 relative, size, solid_background, transparent_black, Action, AnyElement, App, AvailableSpace,
38 Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
39 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId,
40 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
41 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
42 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
43 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement, Window,
44};
45use inline_completion::Direction;
46use itertools::Itertools;
47use language::{
48 language_settings::{
49 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
50 ShowWhitespaceSetting,
51 },
52 ChunkRendererContext,
53};
54use lsp::DiagnosticSeverity;
55use multi_buffer::{
56 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
57 MultiBufferRow, RowInfo,
58};
59use project::{
60 debugger::breakpoint_store::{Breakpoint, BreakpointKind},
61 project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
62};
63use settings::Settings;
64use smallvec::{smallvec, SmallVec};
65use std::{
66 any::TypeId,
67 borrow::Cow,
68 cmp::{self, Ordering},
69 fmt::{self, Write},
70 iter, mem,
71 ops::{Deref, Range},
72 rc::Rc,
73 sync::Arc,
74};
75use sum_tree::Bias;
76use text::BufferId;
77use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
78use ui::{
79 h_flex, prelude::*, ButtonLike, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
80 POPOVER_Y_PADDING,
81};
82use unicode_segmentation::UnicodeSegmentation;
83use util::{debug_panic, RangeExt, ResultExt};
84use workspace::{item::Item, notifications::NotifyTaskExt};
85
86const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
87const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
88
89/// Determines what kinds of highlights should be applied to a lines background.
90#[derive(Clone, Copy, Default)]
91struct LineHighlightSpec {
92 selection: bool,
93 breakpoint: bool,
94 _active_stack_frame: bool,
95}
96
97struct SelectionLayout {
98 head: DisplayPoint,
99 cursor_shape: CursorShape,
100 is_newest: bool,
101 is_local: bool,
102 range: Range<DisplayPoint>,
103 active_rows: Range<DisplayRow>,
104 user_name: Option<SharedString>,
105}
106
107impl SelectionLayout {
108 fn new<T: ToPoint + ToDisplayPoint + Clone>(
109 selection: Selection<T>,
110 line_mode: bool,
111 cursor_shape: CursorShape,
112 map: &DisplaySnapshot,
113 is_newest: bool,
114 is_local: bool,
115 user_name: Option<SharedString>,
116 ) -> Self {
117 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
118 let display_selection = point_selection.map(|p| p.to_display_point(map));
119 let mut range = display_selection.range();
120 let mut head = display_selection.head();
121 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
122 ..map.next_line_boundary(point_selection.end).1.row();
123
124 // vim visual line mode
125 if line_mode {
126 let point_range = map.expand_to_line(point_selection.range());
127 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
128 }
129
130 // any vim visual mode (including line mode)
131 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
132 && !range.is_empty()
133 && !selection.reversed
134 {
135 if head.column() > 0 {
136 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
137 } else if head.row().0 > 0 && head != map.max_point() {
138 head = map.clip_point(
139 DisplayPoint::new(
140 head.row().previous_row(),
141 map.line_len(head.row().previous_row()),
142 ),
143 Bias::Left,
144 );
145 // updating range.end is a no-op unless you're cursor is
146 // on the newline containing a multi-buffer divider
147 // in which case the clip_point may have moved the head up
148 // an additional row.
149 range.end = DisplayPoint::new(head.row().next_row(), 0);
150 active_rows.end = head.row();
151 }
152 }
153
154 Self {
155 head,
156 cursor_shape,
157 is_newest,
158 is_local,
159 range,
160 active_rows,
161 user_name,
162 }
163 }
164}
165
166pub struct EditorElement {
167 editor: Entity<Editor>,
168 style: EditorStyle,
169}
170
171type DisplayRowDelta = u32;
172
173impl EditorElement {
174 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
175
176 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
177 Self {
178 editor: editor.clone(),
179 style,
180 }
181 }
182
183 fn register_actions(&self, window: &mut Window, cx: &mut App) {
184 let editor = &self.editor;
185 editor.update(cx, |editor, cx| {
186 for action in editor.editor_actions.borrow().values() {
187 (action)(window, cx)
188 }
189 });
190
191 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
192 crate::clangd_ext::apply_related_actions(editor, window, cx);
193 register_action(editor, window, Editor::open_context_menu);
194 register_action(editor, window, Editor::move_left);
195 register_action(editor, window, Editor::move_right);
196 register_action(editor, window, Editor::move_down);
197 register_action(editor, window, Editor::move_down_by_lines);
198 register_action(editor, window, Editor::select_down_by_lines);
199 register_action(editor, window, Editor::move_up);
200 register_action(editor, window, Editor::move_up_by_lines);
201 register_action(editor, window, Editor::select_up_by_lines);
202 register_action(editor, window, Editor::select_page_down);
203 register_action(editor, window, Editor::select_page_up);
204 register_action(editor, window, Editor::cancel);
205 register_action(editor, window, Editor::newline);
206 register_action(editor, window, Editor::newline_above);
207 register_action(editor, window, Editor::newline_below);
208 register_action(editor, window, Editor::backspace);
209 register_action(editor, window, Editor::delete);
210 register_action(editor, window, Editor::tab);
211 register_action(editor, window, Editor::backtab);
212 register_action(editor, window, Editor::indent);
213 register_action(editor, window, Editor::outdent);
214 register_action(editor, window, Editor::autoindent);
215 register_action(editor, window, Editor::delete_line);
216 register_action(editor, window, Editor::join_lines);
217 register_action(editor, window, Editor::sort_lines_case_sensitive);
218 register_action(editor, window, Editor::sort_lines_case_insensitive);
219 register_action(editor, window, Editor::reverse_lines);
220 register_action(editor, window, Editor::shuffle_lines);
221 register_action(editor, window, Editor::convert_to_upper_case);
222 register_action(editor, window, Editor::convert_to_lower_case);
223 register_action(editor, window, Editor::convert_to_title_case);
224 register_action(editor, window, Editor::convert_to_snake_case);
225 register_action(editor, window, Editor::convert_to_kebab_case);
226 register_action(editor, window, Editor::convert_to_upper_camel_case);
227 register_action(editor, window, Editor::convert_to_lower_camel_case);
228 register_action(editor, window, Editor::convert_to_opposite_case);
229 register_action(editor, window, Editor::delete_to_previous_word_start);
230 register_action(editor, window, Editor::delete_to_previous_subword_start);
231 register_action(editor, window, Editor::delete_to_next_word_end);
232 register_action(editor, window, Editor::delete_to_next_subword_end);
233 register_action(editor, window, Editor::delete_to_beginning_of_line);
234 register_action(editor, window, Editor::delete_to_end_of_line);
235 register_action(editor, window, Editor::cut_to_end_of_line);
236 register_action(editor, window, Editor::duplicate_line_up);
237 register_action(editor, window, Editor::duplicate_line_down);
238 register_action(editor, window, Editor::duplicate_selection);
239 register_action(editor, window, Editor::move_line_up);
240 register_action(editor, window, Editor::move_line_down);
241 register_action(editor, window, Editor::transpose);
242 register_action(editor, window, Editor::rewrap);
243 register_action(editor, window, Editor::cut);
244 register_action(editor, window, Editor::kill_ring_cut);
245 register_action(editor, window, Editor::kill_ring_yank);
246 register_action(editor, window, Editor::copy);
247 register_action(editor, window, Editor::paste);
248 register_action(editor, window, Editor::undo);
249 register_action(editor, window, Editor::redo);
250 register_action(editor, window, Editor::move_page_up);
251 register_action(editor, window, Editor::move_page_down);
252 register_action(editor, window, Editor::next_screen);
253 register_action(editor, window, Editor::scroll_cursor_top);
254 register_action(editor, window, Editor::scroll_cursor_center);
255 register_action(editor, window, Editor::scroll_cursor_bottom);
256 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
257 register_action(editor, window, |editor, _: &LineDown, window, cx| {
258 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
259 });
260 register_action(editor, window, |editor, _: &LineUp, window, cx| {
261 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
262 });
263 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
264 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
265 });
266 register_action(
267 editor,
268 window,
269 |editor, HandleInput(text): &HandleInput, window, cx| {
270 if text.is_empty() {
271 return;
272 }
273 editor.handle_input(text, window, cx);
274 },
275 );
276 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
277 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
278 });
279 register_action(editor, window, |editor, _: &PageDown, window, cx| {
280 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
281 });
282 register_action(editor, window, |editor, _: &PageUp, window, cx| {
283 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
284 });
285 register_action(editor, window, Editor::move_to_previous_word_start);
286 register_action(editor, window, Editor::move_to_previous_subword_start);
287 register_action(editor, window, Editor::move_to_next_word_end);
288 register_action(editor, window, Editor::move_to_next_subword_end);
289 register_action(editor, window, Editor::move_to_beginning_of_line);
290 register_action(editor, window, Editor::move_to_end_of_line);
291 register_action(editor, window, Editor::move_to_start_of_paragraph);
292 register_action(editor, window, Editor::move_to_end_of_paragraph);
293 register_action(editor, window, Editor::move_to_beginning);
294 register_action(editor, window, Editor::move_to_end);
295 register_action(editor, window, Editor::move_to_start_of_excerpt);
296 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
297 register_action(editor, window, Editor::move_to_end_of_excerpt);
298 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
299 register_action(editor, window, Editor::select_up);
300 register_action(editor, window, Editor::select_down);
301 register_action(editor, window, Editor::select_left);
302 register_action(editor, window, Editor::select_right);
303 register_action(editor, window, Editor::select_to_previous_word_start);
304 register_action(editor, window, Editor::select_to_previous_subword_start);
305 register_action(editor, window, Editor::select_to_next_word_end);
306 register_action(editor, window, Editor::select_to_next_subword_end);
307 register_action(editor, window, Editor::select_to_beginning_of_line);
308 register_action(editor, window, Editor::select_to_end_of_line);
309 register_action(editor, window, Editor::select_to_start_of_paragraph);
310 register_action(editor, window, Editor::select_to_end_of_paragraph);
311 register_action(editor, window, Editor::select_to_start_of_excerpt);
312 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
313 register_action(editor, window, Editor::select_to_end_of_excerpt);
314 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
315 register_action(editor, window, Editor::select_to_beginning);
316 register_action(editor, window, Editor::select_to_end);
317 register_action(editor, window, Editor::select_all);
318 register_action(editor, window, |editor, action, window, cx| {
319 editor.select_all_matches(action, window, cx).log_err();
320 });
321 register_action(editor, window, Editor::select_line);
322 register_action(editor, window, Editor::split_selection_into_lines);
323 register_action(editor, window, Editor::add_selection_above);
324 register_action(editor, window, Editor::add_selection_below);
325 register_action(editor, window, |editor, action, window, cx| {
326 editor.select_next(action, window, cx).log_err();
327 });
328 register_action(editor, window, |editor, action, window, cx| {
329 editor.select_previous(action, window, cx).log_err();
330 });
331 register_action(editor, window, Editor::toggle_comments);
332 register_action(editor, window, Editor::select_larger_syntax_node);
333 register_action(editor, window, Editor::select_smaller_syntax_node);
334 register_action(editor, window, Editor::select_enclosing_symbol);
335 register_action(editor, window, Editor::move_to_enclosing_bracket);
336 register_action(editor, window, Editor::undo_selection);
337 register_action(editor, window, Editor::redo_selection);
338 if !editor.read(cx).is_singleton(cx) {
339 register_action(editor, window, Editor::expand_excerpts);
340 register_action(editor, window, Editor::expand_excerpts_up);
341 register_action(editor, window, Editor::expand_excerpts_down);
342 }
343 register_action(editor, window, Editor::go_to_diagnostic);
344 register_action(editor, window, Editor::go_to_prev_diagnostic);
345 register_action(editor, window, Editor::go_to_next_hunk);
346 register_action(editor, window, Editor::go_to_prev_hunk);
347 register_action(editor, window, |editor, action, window, cx| {
348 editor
349 .go_to_definition(action, window, cx)
350 .detach_and_log_err(cx);
351 });
352 register_action(editor, window, |editor, action, window, cx| {
353 editor
354 .go_to_definition_split(action, window, cx)
355 .detach_and_log_err(cx);
356 });
357 register_action(editor, window, |editor, action, window, cx| {
358 editor
359 .go_to_declaration(action, window, cx)
360 .detach_and_log_err(cx);
361 });
362 register_action(editor, window, |editor, action, window, cx| {
363 editor
364 .go_to_declaration_split(action, window, cx)
365 .detach_and_log_err(cx);
366 });
367 register_action(editor, window, |editor, action, window, cx| {
368 editor
369 .go_to_implementation(action, window, cx)
370 .detach_and_log_err(cx);
371 });
372 register_action(editor, window, |editor, action, window, cx| {
373 editor
374 .go_to_implementation_split(action, window, cx)
375 .detach_and_log_err(cx);
376 });
377 register_action(editor, window, |editor, action, window, cx| {
378 editor
379 .go_to_type_definition(action, window, cx)
380 .detach_and_log_err(cx);
381 });
382 register_action(editor, window, |editor, action, window, cx| {
383 editor
384 .go_to_type_definition_split(action, window, cx)
385 .detach_and_log_err(cx);
386 });
387 register_action(editor, window, Editor::open_url);
388 register_action(editor, window, Editor::open_selected_filename);
389 register_action(editor, window, Editor::fold);
390 register_action(editor, window, Editor::fold_at_level);
391 register_action(editor, window, Editor::fold_all);
392 register_action(editor, window, Editor::fold_function_bodies);
393 register_action(editor, window, Editor::fold_at);
394 register_action(editor, window, Editor::fold_recursive);
395 register_action(editor, window, Editor::toggle_fold);
396 register_action(editor, window, Editor::toggle_fold_recursive);
397 register_action(editor, window, Editor::unfold_lines);
398 register_action(editor, window, Editor::unfold_recursive);
399 register_action(editor, window, Editor::unfold_all);
400 register_action(editor, window, Editor::unfold_at);
401 register_action(editor, window, Editor::fold_selected_ranges);
402 register_action(editor, window, Editor::set_mark);
403 register_action(editor, window, Editor::swap_selection_ends);
404 register_action(editor, window, Editor::show_completions);
405 register_action(editor, window, Editor::show_word_completions);
406 register_action(editor, window, Editor::toggle_code_actions);
407 register_action(editor, window, Editor::open_excerpts);
408 register_action(editor, window, Editor::open_excerpts_in_split);
409 register_action(editor, window, Editor::open_proposed_changes_editor);
410 register_action(editor, window, Editor::toggle_soft_wrap);
411 register_action(editor, window, Editor::toggle_tab_bar);
412 register_action(editor, window, Editor::toggle_line_numbers);
413 register_action(editor, window, Editor::toggle_relative_line_numbers);
414 register_action(editor, window, Editor::toggle_indent_guides);
415 register_action(editor, window, Editor::toggle_inlay_hints);
416 register_action(editor, window, Editor::toggle_edit_predictions);
417 register_action(editor, window, Editor::toggle_inline_diagnostics);
418 register_action(editor, window, hover_popover::hover);
419 register_action(editor, window, Editor::reveal_in_finder);
420 register_action(editor, window, Editor::copy_path);
421 register_action(editor, window, Editor::copy_relative_path);
422 register_action(editor, window, Editor::copy_file_name);
423 register_action(editor, window, Editor::copy_file_name_without_extension);
424 register_action(editor, window, Editor::copy_highlight_json);
425 register_action(editor, window, Editor::copy_permalink_to_line);
426 register_action(editor, window, Editor::open_permalink_to_line);
427 register_action(editor, window, Editor::copy_file_location);
428 register_action(editor, window, Editor::toggle_git_blame);
429 register_action(editor, window, Editor::toggle_git_blame_inline);
430 register_action(editor, window, Editor::toggle_selected_diff_hunks);
431 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
432 register_action(editor, window, Editor::stage_and_next);
433 register_action(editor, window, Editor::unstage_and_next);
434 register_action(editor, window, Editor::expand_all_diff_hunks);
435
436 register_action(editor, window, |editor, action, window, cx| {
437 if let Some(task) = editor.format(action, window, cx) {
438 task.detach_and_notify_err(window, cx);
439 } else {
440 cx.propagate();
441 }
442 });
443 register_action(editor, window, |editor, action, window, cx| {
444 if let Some(task) = editor.format_selections(action, window, cx) {
445 task.detach_and_notify_err(window, cx);
446 } else {
447 cx.propagate();
448 }
449 });
450 register_action(editor, window, |editor, action, window, cx| {
451 if let Some(task) = editor.organize_imports(action, window, cx) {
452 task.detach_and_notify_err(window, cx);
453 } else {
454 cx.propagate();
455 }
456 });
457 register_action(editor, window, Editor::restart_language_server);
458 register_action(editor, window, Editor::show_character_palette);
459 register_action(editor, window, |editor, action, window, cx| {
460 if let Some(task) = editor.confirm_completion(action, window, cx) {
461 task.detach_and_notify_err(window, cx);
462 } else {
463 cx.propagate();
464 }
465 });
466 register_action(editor, window, |editor, action, window, cx| {
467 if let Some(task) = editor.compose_completion(action, window, cx) {
468 task.detach_and_notify_err(window, cx);
469 } else {
470 cx.propagate();
471 }
472 });
473 register_action(editor, window, |editor, action, window, cx| {
474 if let Some(task) = editor.confirm_code_action(action, window, cx) {
475 task.detach_and_notify_err(window, cx);
476 } else {
477 cx.propagate();
478 }
479 });
480 register_action(editor, window, |editor, action, window, cx| {
481 if let Some(task) = editor.rename(action, window, cx) {
482 task.detach_and_notify_err(window, cx);
483 } else {
484 cx.propagate();
485 }
486 });
487 register_action(editor, window, |editor, action, window, cx| {
488 if let Some(task) = editor.confirm_rename(action, window, cx) {
489 task.detach_and_notify_err(window, cx);
490 } else {
491 cx.propagate();
492 }
493 });
494 register_action(editor, window, |editor, action, window, cx| {
495 if let Some(task) = editor.find_all_references(action, window, cx) {
496 task.detach_and_log_err(cx);
497 } else {
498 cx.propagate();
499 }
500 });
501 register_action(editor, window, Editor::show_signature_help);
502 register_action(editor, window, Editor::next_edit_prediction);
503 register_action(editor, window, Editor::previous_edit_prediction);
504 register_action(editor, window, Editor::show_inline_completion);
505 register_action(editor, window, Editor::context_menu_first);
506 register_action(editor, window, Editor::context_menu_prev);
507 register_action(editor, window, Editor::context_menu_next);
508 register_action(editor, window, Editor::context_menu_last);
509 register_action(editor, window, Editor::display_cursor_names);
510 register_action(editor, window, Editor::unique_lines_case_insensitive);
511 register_action(editor, window, Editor::unique_lines_case_sensitive);
512 register_action(editor, window, Editor::accept_partial_inline_completion);
513 register_action(editor, window, Editor::accept_edit_prediction);
514 register_action(editor, window, Editor::restore_file);
515 register_action(editor, window, Editor::git_restore);
516 register_action(editor, window, Editor::apply_all_diff_hunks);
517 register_action(editor, window, Editor::apply_selected_diff_hunks);
518 register_action(editor, window, Editor::open_active_item_in_terminal);
519 register_action(editor, window, Editor::reload_file);
520 register_action(editor, window, Editor::spawn_nearest_task);
521 register_action(editor, window, Editor::insert_uuid_v4);
522 register_action(editor, window, Editor::insert_uuid_v7);
523 register_action(editor, window, Editor::open_selections_in_multibuffer);
524 if cx.has_flag::<Debugger>() {
525 register_action(editor, window, Editor::toggle_breakpoint);
526 register_action(editor, window, Editor::edit_log_breakpoint);
527 }
528 }
529
530 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
531 let position_map = layout.position_map.clone();
532 window.on_key_event({
533 let editor = self.editor.clone();
534 move |event: &ModifiersChangedEvent, phase, window, cx| {
535 if phase != DispatchPhase::Bubble {
536 return;
537 }
538 editor.update(cx, |editor, cx| {
539 let inlay_hint_settings = inlay_hint_settings(
540 editor.selections.newest_anchor().head(),
541 &editor.buffer.read(cx).snapshot(cx),
542 cx,
543 );
544
545 if let Some(inlay_modifiers) = inlay_hint_settings
546 .toggle_on_modifiers_press
547 .as_ref()
548 .filter(|modifiers| modifiers.modified())
549 {
550 editor.refresh_inlay_hints(
551 InlayHintRefreshReason::ModifiersChanged(
552 inlay_modifiers == &event.modifiers,
553 ),
554 cx,
555 );
556 }
557
558 if editor.hover_state.focused(window, cx) {
559 return;
560 }
561
562 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
563 })
564 }
565 });
566 }
567
568 fn mouse_left_down(
569 editor: &mut Editor,
570 event: &MouseDownEvent,
571 hovered_hunk: Option<Range<Anchor>>,
572 position_map: &PositionMap,
573 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
574 window: &mut Window,
575 cx: &mut Context<Editor>,
576 ) {
577 if window.default_prevented() {
578 return;
579 }
580
581 let text_hitbox = &position_map.text_hitbox;
582 let gutter_hitbox = &position_map.gutter_hitbox;
583 let mut click_count = event.click_count;
584 let mut modifiers = event.modifiers;
585
586 if let Some(hovered_hunk) = hovered_hunk {
587 editor.toggle_single_diff_hunk(hovered_hunk, cx);
588 cx.notify();
589 return;
590 } else if gutter_hitbox.is_hovered(window) {
591 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
592 } else if !text_hitbox.is_hovered(window) {
593 return;
594 }
595
596 let is_singleton = editor.buffer().read(cx).is_singleton();
597
598 if click_count == 2 && !is_singleton {
599 match EditorSettings::get_global(cx).double_click_in_multibuffer {
600 DoubleClickInMultibuffer::Select => {
601 // do nothing special on double click, all selection logic is below
602 }
603 DoubleClickInMultibuffer::Open => {
604 if modifiers.alt {
605 // if double click is made with alt, pretend it's a regular double click without opening and alt,
606 // and run the selection logic.
607 modifiers.alt = false;
608 } else {
609 let scroll_position_row =
610 position_map.scroll_pixel_position.y / position_map.line_height;
611 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
612 + position_map.scroll_pixel_position.y)
613 / position_map.line_height)
614 as u32;
615 let multi_buffer_row = position_map
616 .snapshot
617 .display_point_to_point(
618 DisplayPoint::new(DisplayRow(display_row), 0),
619 Bias::Right,
620 )
621 .row;
622 let line_offset_from_top = display_row - scroll_position_row as u32;
623 // if double click is made without alt, open the corresponding excerp
624 editor.open_excerpts_common(
625 Some(JumpData::MultiBufferRow {
626 row: MultiBufferRow(multi_buffer_row),
627 line_offset_from_top,
628 }),
629 false,
630 window,
631 cx,
632 );
633 return;
634 }
635 }
636 }
637 }
638
639 let point_for_position = position_map.point_for_position(event.position);
640 let position = point_for_position.previous_valid;
641 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
642 editor.select(
643 SelectPhase::BeginColumnar {
644 position,
645 reset: false,
646 goal_column: point_for_position.exact_unclipped.column(),
647 },
648 window,
649 cx,
650 );
651 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
652 {
653 editor.select(
654 SelectPhase::Extend {
655 position,
656 click_count,
657 },
658 window,
659 cx,
660 );
661 } else {
662 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
663 let multi_cursor_modifier = match multi_cursor_setting {
664 MultiCursorModifier::Alt => modifiers.alt,
665 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
666 };
667 editor.select(
668 SelectPhase::Begin {
669 position,
670 add: multi_cursor_modifier,
671 click_count,
672 },
673 window,
674 cx,
675 );
676 }
677 cx.stop_propagation();
678
679 if !is_singleton {
680 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
681 + position_map.scroll_pixel_position.y)
682 / position_map.line_height) as u32;
683 let multi_buffer_row = position_map
684 .snapshot
685 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
686 .row;
687 if line_numbers
688 .get(&MultiBufferRow(multi_buffer_row))
689 .and_then(|line_number| line_number.hitbox.as_ref())
690 .is_some_and(|hitbox| hitbox.contains(&event.position))
691 {
692 let scroll_position_row =
693 position_map.scroll_pixel_position.y / position_map.line_height;
694 let line_offset_from_top = display_row - scroll_position_row as u32;
695
696 editor.open_excerpts_common(
697 Some(JumpData::MultiBufferRow {
698 row: MultiBufferRow(multi_buffer_row),
699 line_offset_from_top,
700 }),
701 modifiers.alt,
702 window,
703 cx,
704 );
705 cx.stop_propagation();
706 }
707 }
708 }
709
710 fn mouse_right_down(
711 editor: &mut Editor,
712 event: &MouseDownEvent,
713 position_map: &PositionMap,
714 window: &mut Window,
715 cx: &mut Context<Editor>,
716 ) {
717 if !position_map.text_hitbox.is_hovered(window) {
718 return;
719 }
720 let point_for_position = position_map.point_for_position(event.position);
721 mouse_context_menu::deploy_context_menu(
722 editor,
723 Some(event.position),
724 point_for_position.previous_valid,
725 window,
726 cx,
727 );
728 cx.stop_propagation();
729 }
730
731 fn mouse_middle_down(
732 editor: &mut Editor,
733 event: &MouseDownEvent,
734 position_map: &PositionMap,
735 window: &mut Window,
736 cx: &mut Context<Editor>,
737 ) {
738 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
739 return;
740 }
741
742 let point_for_position = position_map.point_for_position(event.position);
743 let position = point_for_position.previous_valid;
744
745 editor.select(
746 SelectPhase::BeginColumnar {
747 position,
748 reset: true,
749 goal_column: point_for_position.exact_unclipped.column(),
750 },
751 window,
752 cx,
753 );
754 }
755
756 fn mouse_up(
757 editor: &mut Editor,
758 event: &MouseUpEvent,
759 position_map: &PositionMap,
760 window: &mut Window,
761 cx: &mut Context<Editor>,
762 ) {
763 let text_hitbox = &position_map.text_hitbox;
764 let end_selection = editor.has_pending_selection();
765 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
766
767 if end_selection {
768 editor.select(SelectPhase::End, window, cx);
769 }
770
771 if end_selection && pending_nonempty_selections {
772 cx.stop_propagation();
773 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
774 && event.button == MouseButton::Middle
775 {
776 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
777 return;
778 }
779
780 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
781 if EditorSettings::get_global(cx).middle_click_paste {
782 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
783 let point_for_position = position_map.point_for_position(event.position);
784 let position = point_for_position.previous_valid;
785
786 editor.select(
787 SelectPhase::Begin {
788 position,
789 add: false,
790 click_count: 1,
791 },
792 window,
793 cx,
794 );
795 editor.insert(&text, window, cx);
796 }
797 cx.stop_propagation()
798 }
799 }
800 }
801
802 fn click(
803 editor: &mut Editor,
804 event: &ClickEvent,
805 position_map: &PositionMap,
806 window: &mut Window,
807 cx: &mut Context<Editor>,
808 ) {
809 let text_hitbox = &position_map.text_hitbox;
810 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
811
812 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
813 let multi_cursor_modifier = match multi_cursor_setting {
814 MultiCursorModifier::Alt => event.modifiers().secondary(),
815 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
816 };
817
818 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
819 let point = position_map.point_for_position(event.up.position);
820 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
821
822 cx.stop_propagation();
823 }
824 }
825
826 fn mouse_dragged(
827 editor: &mut Editor,
828 event: &MouseMoveEvent,
829 position_map: &PositionMap,
830 window: &mut Window,
831 cx: &mut Context<Editor>,
832 ) {
833 if !editor.has_pending_selection() {
834 return;
835 }
836
837 let text_bounds = position_map.text_hitbox.bounds;
838 let point_for_position = position_map.point_for_position(event.position);
839 let mut scroll_delta = gpui::Point::<f32>::default();
840 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
841 let top = text_bounds.origin.y + vertical_margin;
842 let bottom = text_bounds.bottom_left().y - vertical_margin;
843 if event.position.y < top {
844 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
845 }
846 if event.position.y > bottom {
847 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
848 }
849
850 // We need horizontal width of text
851 let style = editor.style.clone().unwrap_or_default();
852 let font_id = window.text_system().resolve_font(&style.text.font());
853 let font_size = style.text.font_size.to_pixels(window.rem_size());
854 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
855
856 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
857
858 let scroll_space: Pixels = scroll_margin_x * em_width;
859
860 let left = text_bounds.origin.x + scroll_space;
861 let right = text_bounds.top_right().x - scroll_space;
862
863 if event.position.x < left {
864 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
865 }
866 if event.position.x > right {
867 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
868 }
869
870 editor.select(
871 SelectPhase::Update {
872 position: point_for_position.previous_valid,
873 goal_column: point_for_position.exact_unclipped.column(),
874 scroll_delta,
875 },
876 window,
877 cx,
878 );
879 }
880
881 fn mouse_moved(
882 editor: &mut Editor,
883 event: &MouseMoveEvent,
884 position_map: &PositionMap,
885 window: &mut Window,
886 cx: &mut Context<Editor>,
887 ) {
888 let text_hitbox = &position_map.text_hitbox;
889 let gutter_hitbox = &position_map.gutter_hitbox;
890 let modifiers = event.modifiers;
891 let gutter_hovered = gutter_hitbox.is_hovered(window);
892 editor.set_gutter_hovered(gutter_hovered, cx);
893
894 if gutter_hovered {
895 editor.gutter_breakpoint_indicator = Some(
896 position_map
897 .point_for_position(event.position)
898 .previous_valid,
899 );
900 } else {
901 editor.gutter_breakpoint_indicator = None;
902 }
903
904 cx.notify();
905
906 // Don't trigger hover popover if mouse is hovering over context menu
907 if text_hitbox.is_hovered(window) {
908 let point_for_position = position_map.point_for_position(event.position);
909
910 editor.update_hovered_link(
911 point_for_position,
912 &position_map.snapshot,
913 modifiers,
914 window,
915 cx,
916 );
917
918 if let Some(point) = point_for_position.as_valid() {
919 let anchor = position_map
920 .snapshot
921 .buffer_snapshot
922 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
923 hover_at(editor, Some(anchor), window, cx);
924 Self::update_visible_cursor(editor, point, position_map, window, cx);
925 } else {
926 hover_at(editor, None, window, cx);
927 }
928 } else {
929 editor.hide_hovered_link(cx);
930 hover_at(editor, None, window, cx);
931 if gutter_hovered {
932 cx.stop_propagation();
933 }
934 }
935 }
936
937 fn update_visible_cursor(
938 editor: &mut Editor,
939 point: DisplayPoint,
940 position_map: &PositionMap,
941 window: &mut Window,
942 cx: &mut Context<Editor>,
943 ) {
944 let snapshot = &position_map.snapshot;
945 let Some(hub) = editor.collaboration_hub() else {
946 return;
947 };
948 let start = snapshot.display_snapshot.clip_point(
949 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
950 Bias::Left,
951 );
952 let end = snapshot.display_snapshot.clip_point(
953 DisplayPoint::new(
954 point.row(),
955 (point.column() + 1).min(snapshot.line_len(point.row())),
956 ),
957 Bias::Right,
958 );
959
960 let range = snapshot
961 .buffer_snapshot
962 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
963 ..snapshot
964 .buffer_snapshot
965 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
966
967 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
968 return;
969 };
970 let key = crate::HoveredCursor {
971 replica_id: selection.replica_id,
972 selection_id: selection.selection.id,
973 };
974 editor.hovered_cursors.insert(
975 key.clone(),
976 cx.spawn_in(window, async move |editor, cx| {
977 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
978 editor
979 .update(cx, |editor, cx| {
980 editor.hovered_cursors.remove(&key);
981 cx.notify();
982 })
983 .ok();
984 }),
985 );
986 cx.notify()
987 }
988
989 fn layout_selections(
990 &self,
991 start_anchor: Anchor,
992 end_anchor: Anchor,
993 local_selections: &[Selection<Point>],
994 snapshot: &EditorSnapshot,
995 start_row: DisplayRow,
996 end_row: DisplayRow,
997 window: &mut Window,
998 cx: &mut App,
999 ) -> (
1000 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1001 BTreeMap<DisplayRow, LineHighlightSpec>,
1002 Option<DisplayPoint>,
1003 ) {
1004 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1005 let mut active_rows = BTreeMap::new();
1006 let mut newest_selection_head = None;
1007 self.editor.update(cx, |editor, cx| {
1008 if editor.show_local_selections {
1009 let mut layouts = Vec::new();
1010 let newest = editor.selections.newest(cx);
1011 for selection in local_selections.iter().cloned() {
1012 let is_empty = selection.start == selection.end;
1013 let is_newest = selection == newest;
1014
1015 let layout = SelectionLayout::new(
1016 selection,
1017 editor.selections.line_mode,
1018 editor.cursor_shape,
1019 &snapshot.display_snapshot,
1020 is_newest,
1021 editor.leader_peer_id.is_none(),
1022 None,
1023 );
1024 if is_newest {
1025 newest_selection_head = Some(layout.head);
1026 }
1027
1028 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1029 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1030 {
1031 let contains_non_empty_selection = active_rows
1032 .entry(DisplayRow(row))
1033 .or_insert_with(LineHighlightSpec::default);
1034 contains_non_empty_selection.selection |= !is_empty;
1035 }
1036 layouts.push(layout);
1037 }
1038
1039 let player = editor.current_user_player_color(cx);
1040 selections.push((player, layouts));
1041 }
1042
1043 if let Some(collaboration_hub) = &editor.collaboration_hub {
1044 // When following someone, render the local selections in their color.
1045 if let Some(leader_id) = editor.leader_peer_id {
1046 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1047 {
1048 if let Some(participant_index) = collaboration_hub
1049 .user_participant_indices(cx)
1050 .get(&collaborator.user_id)
1051 {
1052 if let Some((local_selection_style, _)) = selections.first_mut() {
1053 *local_selection_style = cx
1054 .theme()
1055 .players()
1056 .color_for_participant(participant_index.0);
1057 }
1058 }
1059 }
1060 }
1061
1062 let mut remote_selections = HashMap::default();
1063 for selection in snapshot.remote_selections_in_range(
1064 &(start_anchor..end_anchor),
1065 collaboration_hub.as_ref(),
1066 cx,
1067 ) {
1068 let selection_style =
1069 Self::get_participant_color(selection.participant_index, cx);
1070
1071 // Don't re-render the leader's selections, since the local selections
1072 // match theirs.
1073 if Some(selection.peer_id) == editor.leader_peer_id {
1074 continue;
1075 }
1076 let key = HoveredCursor {
1077 replica_id: selection.replica_id,
1078 selection_id: selection.selection.id,
1079 };
1080
1081 let is_shown =
1082 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1083
1084 remote_selections
1085 .entry(selection.replica_id)
1086 .or_insert((selection_style, Vec::new()))
1087 .1
1088 .push(SelectionLayout::new(
1089 selection.selection,
1090 selection.line_mode,
1091 selection.cursor_shape,
1092 &snapshot.display_snapshot,
1093 false,
1094 false,
1095 if is_shown { selection.user_name } else { None },
1096 ));
1097 }
1098
1099 selections.extend(remote_selections.into_values());
1100 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1101 let layouts = snapshot
1102 .buffer_snapshot
1103 .selections_in_range(&(start_anchor..end_anchor), true)
1104 .map(move |(_, line_mode, cursor_shape, selection)| {
1105 SelectionLayout::new(
1106 selection,
1107 line_mode,
1108 cursor_shape,
1109 &snapshot.display_snapshot,
1110 false,
1111 false,
1112 None,
1113 )
1114 })
1115 .collect::<Vec<_>>();
1116 let player = editor.current_user_player_color(cx);
1117 selections.push((player, layouts));
1118 }
1119 });
1120 (selections, active_rows, newest_selection_head)
1121 }
1122
1123 fn collect_cursors(
1124 &self,
1125 snapshot: &EditorSnapshot,
1126 cx: &mut App,
1127 ) -> Vec<(DisplayPoint, Hsla)> {
1128 let editor = self.editor.read(cx);
1129 let mut cursors = Vec::new();
1130 let mut skip_local = false;
1131 let mut add_cursor = |anchor: Anchor, color| {
1132 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1133 };
1134 // Remote cursors
1135 if let Some(collaboration_hub) = &editor.collaboration_hub {
1136 for remote_selection in snapshot.remote_selections_in_range(
1137 &(Anchor::min()..Anchor::max()),
1138 collaboration_hub.deref(),
1139 cx,
1140 ) {
1141 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1142 add_cursor(remote_selection.selection.head(), color.cursor);
1143 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1144 skip_local = true;
1145 }
1146 }
1147 }
1148 // Local cursors
1149 if !skip_local {
1150 let color = cx.theme().players().local().cursor;
1151 editor.selections.disjoint.iter().for_each(|selection| {
1152 add_cursor(selection.head(), color);
1153 });
1154 if let Some(ref selection) = editor.selections.pending_anchor() {
1155 add_cursor(selection.head(), color);
1156 }
1157 }
1158 cursors
1159 }
1160
1161 fn layout_visible_cursors(
1162 &self,
1163 snapshot: &EditorSnapshot,
1164 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1165 block_start_rows: &HashSet<DisplayRow>,
1166 visible_display_row_range: Range<DisplayRow>,
1167 line_layouts: &[LineWithInvisibles],
1168 text_hitbox: &Hitbox,
1169 content_origin: gpui::Point<Pixels>,
1170 scroll_position: gpui::Point<f32>,
1171 scroll_pixel_position: gpui::Point<Pixels>,
1172 line_height: Pixels,
1173 em_width: Pixels,
1174 em_advance: Pixels,
1175 autoscroll_containing_element: bool,
1176 window: &mut Window,
1177 cx: &mut App,
1178 ) -> Vec<CursorLayout> {
1179 let mut autoscroll_bounds = None;
1180 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1181 let mut cursors = Vec::new();
1182
1183 let show_local_cursors = editor.show_local_cursors(window, cx);
1184
1185 for (player_color, selections) in selections {
1186 for selection in selections {
1187 let cursor_position = selection.head;
1188
1189 let in_range = visible_display_row_range.contains(&cursor_position.row());
1190 if (selection.is_local && !show_local_cursors)
1191 || !in_range
1192 || block_start_rows.contains(&cursor_position.row())
1193 {
1194 continue;
1195 }
1196
1197 let cursor_row_layout = &line_layouts
1198 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1199 let cursor_column = cursor_position.column() as usize;
1200
1201 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1202 let mut block_width =
1203 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1204 if block_width == Pixels::ZERO {
1205 block_width = em_advance;
1206 }
1207 let block_text = if let CursorShape::Block = selection.cursor_shape {
1208 snapshot
1209 .grapheme_at(cursor_position)
1210 .or_else(|| {
1211 if cursor_column == 0 {
1212 snapshot.placeholder_text().and_then(|s| {
1213 s.graphemes(true).next().map(|s| s.to_string().into())
1214 })
1215 } else {
1216 None
1217 }
1218 })
1219 .and_then(|text| {
1220 let len = text.len();
1221
1222 let font = cursor_row_layout
1223 .font_id_for_index(cursor_column)
1224 .and_then(|cursor_font_id| {
1225 window.text_system().get_font_for_id(cursor_font_id)
1226 })
1227 .unwrap_or(self.style.text.font());
1228
1229 // Invert the text color for the block cursor. Ensure that the text
1230 // color is opaque enough to be visible against the background color.
1231 //
1232 // 0.75 is an arbitrary threshold to determine if the background color is
1233 // opaque enough to use as a text color.
1234 //
1235 // TODO: In the future we should ensure themes have a `text_inverse` color.
1236 let color = if cx.theme().colors().editor_background.a < 0.75 {
1237 match cx.theme().appearance {
1238 Appearance::Dark => Hsla::black(),
1239 Appearance::Light => Hsla::white(),
1240 }
1241 } else {
1242 cx.theme().colors().editor_background
1243 };
1244
1245 window
1246 .text_system()
1247 .shape_line(
1248 text,
1249 cursor_row_layout.font_size,
1250 &[TextRun {
1251 len,
1252 font,
1253 color,
1254 background_color: None,
1255 strikethrough: None,
1256 underline: None,
1257 }],
1258 )
1259 .log_err()
1260 })
1261 } else {
1262 None
1263 };
1264
1265 let x = cursor_character_x - scroll_pixel_position.x;
1266 let y = (cursor_position.row().as_f32()
1267 - scroll_pixel_position.y / line_height)
1268 * line_height;
1269 if selection.is_newest {
1270 editor.pixel_position_of_newest_cursor = Some(point(
1271 text_hitbox.origin.x + x + block_width / 2.,
1272 text_hitbox.origin.y + y + line_height / 2.,
1273 ));
1274
1275 if autoscroll_containing_element {
1276 let top = text_hitbox.origin.y
1277 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1278 * line_height;
1279 let left = text_hitbox.origin.x
1280 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1281 .max(0.)
1282 * em_width;
1283
1284 let bottom = text_hitbox.origin.y
1285 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1286 * line_height;
1287 let right = text_hitbox.origin.x
1288 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1289 * em_width;
1290
1291 autoscroll_bounds =
1292 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1293 }
1294 }
1295
1296 let mut cursor = CursorLayout {
1297 color: player_color.cursor,
1298 block_width,
1299 origin: point(x, y),
1300 line_height,
1301 shape: selection.cursor_shape,
1302 block_text,
1303 cursor_name: None,
1304 };
1305 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1306 string: name,
1307 color: self.style.background,
1308 is_top_row: cursor_position.row().0 == 0,
1309 });
1310 cursor.layout(content_origin, cursor_name, window, cx);
1311 cursors.push(cursor);
1312 }
1313 }
1314
1315 cursors
1316 });
1317
1318 if let Some(bounds) = autoscroll_bounds {
1319 window.request_autoscroll(bounds);
1320 }
1321
1322 cursor_layouts
1323 }
1324
1325 fn layout_scrollbars(
1326 &self,
1327 snapshot: &EditorSnapshot,
1328 scrollbar_range_data: ScrollbarRangeData,
1329 scroll_position: gpui::Point<f32>,
1330 non_visible_cursors: bool,
1331 window: &mut Window,
1332 cx: &mut App,
1333 ) -> AxisPair<Option<ScrollbarLayout>> {
1334 let letter_size = scrollbar_range_data.letter_size;
1335 let text_units_per_page = axis_pair(
1336 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1337 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1338 );
1339
1340 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1341 let show_scrollbars = self.editor.read(cx).show_scrollbars
1342 && match scrollbar_settings.show {
1343 ShowScrollbar::Auto => {
1344 let editor = self.editor.read(cx);
1345 let is_singleton = editor.is_singleton(cx);
1346 // Git
1347 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1348 ||
1349 // Buffer Search Results
1350 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1351 ||
1352 // Selected Text Occurrences
1353 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1354 ||
1355 // Selected Symbol Occurrences
1356 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1357 ||
1358 // Diagnostics
1359 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1360 ||
1361 // Cursors out of sight
1362 non_visible_cursors
1363 ||
1364 // Scrollmanager
1365 editor.scroll_manager.scrollbars_visible()
1366 }
1367 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1368 ShowScrollbar::Always => true,
1369 ShowScrollbar::Never => false,
1370 };
1371
1372 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1373
1374 if snapshot.mode != EditorMode::Full {
1375 return axis_pair(None, None);
1376 }
1377
1378 let visible_range = axis_pair(
1379 axes.horizontal
1380 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1381 axes.vertical
1382 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1383 );
1384
1385 // If a drag took place after we started dragging the scrollbar,
1386 // cancel the scrollbar drag.
1387 if cx.has_active_drag() {
1388 self.editor.update(cx, |editor, cx| {
1389 editor
1390 .scroll_manager
1391 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1392 editor
1393 .scroll_manager
1394 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1395 });
1396 }
1397
1398 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1399
1400 let track_bounds = axis_pair(
1401 axes.horizontal.then(|| {
1402 Bounds::from_corners(
1403 point(
1404 text_bounds.bottom_left().x,
1405 text_bounds.bottom_left().y - self.style.scrollbar_width,
1406 ),
1407 point(
1408 text_bounds.bottom_right().x
1409 - if axes.vertical {
1410 self.style.scrollbar_width
1411 } else {
1412 px(0.)
1413 },
1414 text_bounds.bottom_right().y,
1415 ),
1416 )
1417 }),
1418 axes.vertical.then(|| {
1419 Bounds::from_corners(
1420 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1421 text_bounds.bottom_right(),
1422 )
1423 }),
1424 );
1425
1426 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1427 let total_text_units = axis_pair(
1428 Some(scroll_range_size.width / letter_size.width),
1429 Some(scroll_range_size.height / letter_size.height),
1430 );
1431
1432 let thumb_size = axis_pair(
1433 total_text_units
1434 .horizontal
1435 .zip(track_bounds.horizontal)
1436 .and_then(|(total_text_units_x, track_bounds_x)| {
1437 if text_units_per_page.horizontal >= total_text_units_x {
1438 return None;
1439 }
1440 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1441 return Some(track_bounds_x.size.width);
1442 }
1443 let thumb_size = track_bounds_x.size.width
1444 * (text_units_per_page.horizontal / total_text_units_x);
1445 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1446 }),
1447 total_text_units.vertical.zip(track_bounds.vertical).map(
1448 |(total_text_units_y, track_bounds_y)| {
1449 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1450 return track_bounds_y.size.height;
1451 }
1452 let thumb_size = track_bounds_y.size.height
1453 * (text_units_per_page.vertical / total_text_units_y);
1454 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1455 },
1456 ),
1457 );
1458
1459 // NOTE: Space not taken by track bounds divided by text units not on screen
1460 let text_unit_size = axis_pair(
1461 thumb_size
1462 .horizontal
1463 .zip(track_bounds.horizontal)
1464 .zip(total_text_units.horizontal)
1465 .map(|((thumb_size, track_bounds), total_text_units)| {
1466 (track_bounds.size.width - thumb_size)
1467 / (total_text_units - text_units_per_page.horizontal).max(0.)
1468 }),
1469 thumb_size
1470 .vertical
1471 .zip(track_bounds.vertical)
1472 .zip(total_text_units.vertical)
1473 .map(|((thumb_size, track_bounds), total_text_units)| {
1474 (track_bounds.size.height - thumb_size)
1475 / (total_text_units - text_units_per_page.vertical).max(0.)
1476 }),
1477 );
1478
1479 let horizontal_scrollbar = track_bounds
1480 .horizontal
1481 .zip(visible_range.horizontal)
1482 .zip(text_unit_size.horizontal)
1483 .zip(thumb_size.horizontal)
1484 .map(
1485 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1486 hitbox: window.insert_hitbox(track_bounds, false),
1487 visible_range,
1488 text_unit_size,
1489 visible: show_scrollbars,
1490 thumb_size,
1491 axis: Axis::Horizontal,
1492 },
1493 );
1494
1495 let vertical_scrollbar = track_bounds
1496 .vertical
1497 .zip(visible_range.vertical)
1498 .zip(text_unit_size.vertical)
1499 .zip(thumb_size.vertical)
1500 .map(
1501 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1502 hitbox: window.insert_hitbox(track_bounds, false),
1503 visible_range,
1504 text_unit_size,
1505 visible: show_scrollbars,
1506 thumb_size,
1507 axis: Axis::Vertical,
1508 },
1509 );
1510
1511 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1512 }
1513
1514 fn prepaint_crease_toggles(
1515 &self,
1516 crease_toggles: &mut [Option<AnyElement>],
1517 line_height: Pixels,
1518 gutter_dimensions: &GutterDimensions,
1519 gutter_settings: crate::editor_settings::Gutter,
1520 scroll_pixel_position: gpui::Point<Pixels>,
1521 gutter_hitbox: &Hitbox,
1522 window: &mut Window,
1523 cx: &mut App,
1524 ) {
1525 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1526 if let Some(crease_toggle) = crease_toggle {
1527 debug_assert!(gutter_settings.folds);
1528 let available_space = size(
1529 AvailableSpace::MinContent,
1530 AvailableSpace::Definite(line_height * 0.55),
1531 );
1532 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1533
1534 let position = point(
1535 gutter_dimensions.width - gutter_dimensions.right_padding,
1536 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1537 );
1538 let centering_offset = point(
1539 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1540 (line_height - crease_toggle_size.height) / 2.,
1541 );
1542 let origin = gutter_hitbox.origin + position + centering_offset;
1543 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1544 }
1545 }
1546 }
1547
1548 fn prepaint_expand_toggles(
1549 &self,
1550 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1551 window: &mut Window,
1552 cx: &mut App,
1553 ) {
1554 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1555 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1556 expand_toggle.layout_as_root(available_space, window, cx);
1557 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1558 }
1559 }
1560
1561 fn prepaint_crease_trailers(
1562 &self,
1563 trailers: Vec<Option<AnyElement>>,
1564 lines: &[LineWithInvisibles],
1565 line_height: Pixels,
1566 content_origin: gpui::Point<Pixels>,
1567 scroll_pixel_position: gpui::Point<Pixels>,
1568 em_width: Pixels,
1569 window: &mut Window,
1570 cx: &mut App,
1571 ) -> Vec<Option<CreaseTrailerLayout>> {
1572 trailers
1573 .into_iter()
1574 .enumerate()
1575 .map(|(ix, element)| {
1576 let mut element = element?;
1577 let available_space = size(
1578 AvailableSpace::MinContent,
1579 AvailableSpace::Definite(line_height),
1580 );
1581 let size = element.layout_as_root(available_space, window, cx);
1582
1583 let line = &lines[ix];
1584 let padding = if line.width == Pixels::ZERO {
1585 Pixels::ZERO
1586 } else {
1587 4. * em_width
1588 };
1589 let position = point(
1590 scroll_pixel_position.x + line.width + padding,
1591 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1592 );
1593 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1594 let origin = content_origin + position + centering_offset;
1595 element.prepaint_as_root(origin, available_space, window, cx);
1596 Some(CreaseTrailerLayout {
1597 element,
1598 bounds: Bounds::new(origin, size),
1599 })
1600 })
1601 .collect()
1602 }
1603
1604 // Folds contained in a hunk are ignored apart from shrinking visual size
1605 // If a fold contains any hunks then that fold line is marked as modified
1606 fn layout_gutter_diff_hunks(
1607 &self,
1608 line_height: Pixels,
1609 gutter_hitbox: &Hitbox,
1610 display_rows: Range<DisplayRow>,
1611 snapshot: &EditorSnapshot,
1612 window: &mut Window,
1613 cx: &mut App,
1614 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1615 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1616 let mut display_hunks = snapshot
1617 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1618 .map(|hunk| (hunk, None))
1619 .collect::<Vec<_>>();
1620 let git_gutter_setting = ProjectSettings::get_global(cx)
1621 .git
1622 .git_gutter
1623 .unwrap_or_default();
1624 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1625 for (hunk, hitbox) in &mut display_hunks {
1626 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1627 let hunk_bounds =
1628 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1629 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1630 }
1631 }
1632 }
1633
1634 display_hunks
1635 }
1636
1637 fn layout_inline_diagnostics(
1638 &self,
1639 line_layouts: &[LineWithInvisibles],
1640 crease_trailers: &[Option<CreaseTrailerLayout>],
1641 content_origin: gpui::Point<Pixels>,
1642 scroll_pixel_position: gpui::Point<Pixels>,
1643 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1644 start_row: DisplayRow,
1645 end_row: DisplayRow,
1646 line_height: Pixels,
1647 em_width: Pixels,
1648 style: &EditorStyle,
1649 window: &mut Window,
1650 cx: &mut App,
1651 ) -> HashMap<DisplayRow, AnyElement> {
1652 let max_severity = ProjectSettings::get_global(cx)
1653 .diagnostics
1654 .inline
1655 .max_severity
1656 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1657 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1658 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1659 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1660 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1661 });
1662
1663 let active_diagnostics_group = self
1664 .editor
1665 .read(cx)
1666 .active_diagnostics
1667 .as_ref()
1668 .map(|active_diagnostics| active_diagnostics.group_id);
1669
1670 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1671 let snapshot = editor.snapshot(window, cx);
1672 editor
1673 .inline_diagnostics
1674 .iter()
1675 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1676 .filter(|(_, diagnostic)| match active_diagnostics_group {
1677 Some(active_diagnostics_group) => {
1678 // Active diagnostics are all shown in the editor already, no need to display them inline
1679 diagnostic.group_id != active_diagnostics_group
1680 }
1681 None => true,
1682 })
1683 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1684 .skip_while(|(point, _)| point.row() < start_row)
1685 .take_while(|(point, _)| point.row() < end_row)
1686 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1687 acc.entry(point.row())
1688 .or_insert_with(Vec::new)
1689 .push(diagnostic);
1690 acc
1691 })
1692 });
1693
1694 if diagnostics_by_rows.is_empty() {
1695 return HashMap::default();
1696 }
1697
1698 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1699 &DiagnosticSeverity::ERROR => Color::Error,
1700 &DiagnosticSeverity::WARNING => Color::Warning,
1701 &DiagnosticSeverity::INFORMATION => Color::Info,
1702 &DiagnosticSeverity::HINT => Color::Hint,
1703 _ => Color::Error,
1704 };
1705
1706 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1707 let min_x = ProjectSettings::get_global(cx)
1708 .diagnostics
1709 .inline
1710 .min_column as f32
1711 * em_width;
1712
1713 let mut elements = HashMap::default();
1714 for (row, mut diagnostics) in diagnostics_by_rows {
1715 diagnostics.sort_by_key(|diagnostic| {
1716 (
1717 diagnostic.severity,
1718 std::cmp::Reverse(diagnostic.is_primary),
1719 diagnostic.start.row,
1720 diagnostic.start.column,
1721 )
1722 });
1723
1724 let Some(diagnostic_to_render) = diagnostics
1725 .iter()
1726 .find(|diagnostic| diagnostic.is_primary)
1727 .or_else(|| diagnostics.first())
1728 else {
1729 continue;
1730 };
1731
1732 let pos_y = content_origin.y
1733 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1734
1735 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1736 let pos_x = {
1737 let crease_trailer_layout = &crease_trailers[window_ix];
1738 let line_layout = &line_layouts[window_ix];
1739
1740 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1741 crease_trailer.bounds.right()
1742 } else {
1743 content_origin.x - scroll_pixel_position.x + line_layout.width
1744 };
1745
1746 let padded_line = line_end + padding;
1747 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1748
1749 cmp::max(padded_line, min_start)
1750 };
1751
1752 let behind_inline_completion_popover = inline_completion_popover_origin
1753 .as_ref()
1754 .map_or(false, |inline_completion_popover_origin| {
1755 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1756 });
1757 let opacity = if behind_inline_completion_popover {
1758 0.5
1759 } else {
1760 1.0
1761 };
1762
1763 let mut element = h_flex()
1764 .id(("diagnostic", row.0))
1765 .h(line_height)
1766 .w_full()
1767 .px_1()
1768 .rounded_xs()
1769 .opacity(opacity)
1770 .bg(severity_to_color(&diagnostic_to_render.severity)
1771 .color(cx)
1772 .opacity(0.05))
1773 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1774 .text_sm()
1775 .font_family(style.text.font().family)
1776 .child(diagnostic_to_render.message.clone())
1777 .into_any();
1778
1779 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1780
1781 elements.insert(row, element);
1782 }
1783
1784 elements
1785 }
1786
1787 fn layout_inline_blame(
1788 &self,
1789 display_row: DisplayRow,
1790 row_info: &RowInfo,
1791 line_layout: &LineWithInvisibles,
1792 crease_trailer: Option<&CreaseTrailerLayout>,
1793 em_width: Pixels,
1794 content_origin: gpui::Point<Pixels>,
1795 scroll_pixel_position: gpui::Point<Pixels>,
1796 line_height: Pixels,
1797 window: &mut Window,
1798 cx: &mut App,
1799 ) -> Option<AnyElement> {
1800 if !self
1801 .editor
1802 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1803 {
1804 return None;
1805 }
1806
1807 let editor = self.editor.read(cx);
1808 let blame = editor.blame.clone()?;
1809 let padding = {
1810 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1811 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1812
1813 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1814
1815 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1816 match &inline_completion.completion {
1817 InlineCompletion::Edit {
1818 display_mode: EditDisplayMode::TabAccept,
1819 ..
1820 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1821 _ => {}
1822 }
1823 }
1824
1825 padding * em_width
1826 };
1827
1828 let blame_entry = blame
1829 .update(cx, |blame, cx| {
1830 blame.blame_for_rows(&[*row_info], cx).next()
1831 })
1832 .flatten()?;
1833
1834 let mut element =
1835 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1836
1837 let start_y = content_origin.y
1838 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1839
1840 let start_x = {
1841 let line_end = if let Some(crease_trailer) = crease_trailer {
1842 crease_trailer.bounds.right()
1843 } else {
1844 content_origin.x - scroll_pixel_position.x + line_layout.width
1845 };
1846
1847 let padded_line_end = line_end + padding;
1848
1849 let min_column_in_pixels = ProjectSettings::get_global(cx)
1850 .git
1851 .inline_blame
1852 .and_then(|settings| settings.min_column)
1853 .map(|col| self.column_pixels(col as usize, window, cx))
1854 .unwrap_or(px(0.));
1855 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1856
1857 cmp::max(padded_line_end, min_start)
1858 };
1859
1860 let absolute_offset = point(start_x, start_y);
1861 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1862
1863 Some(element)
1864 }
1865
1866 fn layout_blame_entries(
1867 &self,
1868 buffer_rows: &[RowInfo],
1869 em_width: Pixels,
1870 scroll_position: gpui::Point<f32>,
1871 line_height: Pixels,
1872 gutter_hitbox: &Hitbox,
1873 max_width: Option<Pixels>,
1874 window: &mut Window,
1875 cx: &mut App,
1876 ) -> Option<Vec<AnyElement>> {
1877 if !self
1878 .editor
1879 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1880 {
1881 return None;
1882 }
1883
1884 let blame = self.editor.read(cx).blame.clone()?;
1885 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1886 blame.blame_for_rows(buffer_rows, cx).collect()
1887 });
1888
1889 let width = if let Some(max_width) = max_width {
1890 AvailableSpace::Definite(max_width)
1891 } else {
1892 AvailableSpace::MaxContent
1893 };
1894 let scroll_top = scroll_position.y * line_height;
1895 let start_x = em_width;
1896
1897 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1898
1899 let shaped_lines = blamed_rows
1900 .into_iter()
1901 .enumerate()
1902 .flat_map(|(ix, blame_entry)| {
1903 if let Some(blame_entry) = blame_entry {
1904 let mut element = render_blame_entry(
1905 ix,
1906 &blame,
1907 blame_entry,
1908 &self.style,
1909 &mut last_used_color,
1910 self.editor.clone(),
1911 cx,
1912 );
1913
1914 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1915 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1916
1917 element.prepaint_as_root(
1918 absolute_offset,
1919 size(width, AvailableSpace::MinContent),
1920 window,
1921 cx,
1922 );
1923
1924 Some(element)
1925 } else {
1926 None
1927 }
1928 })
1929 .collect();
1930
1931 Some(shaped_lines)
1932 }
1933
1934 fn layout_indent_guides(
1935 &self,
1936 content_origin: gpui::Point<Pixels>,
1937 text_origin: gpui::Point<Pixels>,
1938 visible_buffer_range: Range<MultiBufferRow>,
1939 scroll_pixel_position: gpui::Point<Pixels>,
1940 line_height: Pixels,
1941 snapshot: &DisplaySnapshot,
1942 window: &mut Window,
1943 cx: &mut App,
1944 ) -> Option<Vec<IndentGuideLayout>> {
1945 let indent_guides = self.editor.update(cx, |editor, cx| {
1946 editor.indent_guides(visible_buffer_range, snapshot, cx)
1947 })?;
1948
1949 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1950 editor
1951 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1952 .unwrap_or_default()
1953 });
1954
1955 Some(
1956 indent_guides
1957 .into_iter()
1958 .enumerate()
1959 .filter_map(|(i, indent_guide)| {
1960 let single_indent_width =
1961 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1962 let total_width = single_indent_width * indent_guide.depth as f32;
1963 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1964 if start_x >= text_origin.x {
1965 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1966 indent_guide.start_row..indent_guide.end_row,
1967 line_height,
1968 snapshot,
1969 );
1970
1971 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1972
1973 Some(IndentGuideLayout {
1974 origin: point(start_x, start_y),
1975 length,
1976 single_indent_width,
1977 depth: indent_guide.depth,
1978 active: active_indent_guide_indices.contains(&i),
1979 settings: indent_guide.settings,
1980 })
1981 } else {
1982 None
1983 }
1984 })
1985 .collect(),
1986 )
1987 }
1988
1989 fn calculate_indent_guide_bounds(
1990 row_range: Range<MultiBufferRow>,
1991 line_height: Pixels,
1992 snapshot: &DisplaySnapshot,
1993 ) -> (gpui::Pixels, gpui::Pixels) {
1994 let start_point = Point::new(row_range.start.0, 0);
1995 let end_point = Point::new(row_range.end.0, 0);
1996
1997 let row_range = start_point.to_display_point(snapshot).row()
1998 ..end_point.to_display_point(snapshot).row();
1999
2000 let mut prev_line = start_point;
2001 prev_line.row = prev_line.row.saturating_sub(1);
2002 let prev_line = prev_line.to_display_point(snapshot).row();
2003
2004 let mut cons_line = end_point;
2005 cons_line.row += 1;
2006 let cons_line = cons_line.to_display_point(snapshot).row();
2007
2008 let mut offset_y = row_range.start.0 as f32 * line_height;
2009 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2010
2011 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2012 if row_range.end == cons_line {
2013 length += line_height;
2014 }
2015
2016 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2017 // we want to extend the indent guide to the start of the block.
2018 let mut block_height = 0;
2019 let mut block_offset = 0;
2020 let mut found_excerpt_header = false;
2021 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2022 if matches!(block, Block::ExcerptBoundary { .. }) {
2023 found_excerpt_header = true;
2024 break;
2025 }
2026 block_offset += block.height();
2027 block_height += block.height();
2028 }
2029 if !found_excerpt_header {
2030 offset_y -= block_offset as f32 * line_height;
2031 length += block_height as f32 * line_height;
2032 }
2033
2034 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2035 // we want to ensure that the indent guide stops before the excerpt header.
2036 let mut block_height = 0;
2037 let mut found_excerpt_header = false;
2038 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2039 if matches!(block, Block::ExcerptBoundary { .. }) {
2040 found_excerpt_header = true;
2041 }
2042 block_height += block.height();
2043 }
2044 if found_excerpt_header {
2045 length -= block_height as f32 * line_height;
2046 }
2047
2048 (offset_y, length)
2049 }
2050
2051 fn layout_breakpoints(
2052 &self,
2053 line_height: Pixels,
2054 range: Range<DisplayRow>,
2055 scroll_pixel_position: gpui::Point<Pixels>,
2056 gutter_dimensions: &GutterDimensions,
2057 gutter_hitbox: &Hitbox,
2058 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2059 snapshot: &EditorSnapshot,
2060 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
2061 row_infos: &[RowInfo],
2062 window: &mut Window,
2063 cx: &mut App,
2064 ) -> Vec<AnyElement> {
2065 self.editor.update(cx, |editor, cx| {
2066 breakpoints
2067 .into_iter()
2068 .filter_map(|(display_row, (text_anchor, bp))| {
2069 let row = MultiBufferRow { 0: display_row.0 };
2070
2071 if row_infos
2072 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2073 .is_some_and(|row_info| row_info.expand_info.is_some())
2074 {
2075 return None;
2076 }
2077
2078 if range.start > display_row || range.end < display_row {
2079 return None;
2080 }
2081
2082 if snapshot.is_line_folded(row) {
2083 return None;
2084 }
2085
2086 let button = editor.render_breakpoint(text_anchor, display_row, &bp.kind, cx);
2087
2088 let button = prepaint_gutter_button(
2089 button,
2090 display_row,
2091 line_height,
2092 gutter_dimensions,
2093 scroll_pixel_position,
2094 gutter_hitbox,
2095 display_hunks,
2096 window,
2097 cx,
2098 );
2099 Some(button)
2100 })
2101 .collect_vec()
2102 })
2103 }
2104
2105 #[allow(clippy::too_many_arguments)]
2106 fn layout_run_indicators(
2107 &self,
2108 line_height: Pixels,
2109 range: Range<DisplayRow>,
2110 row_infos: &[RowInfo],
2111 scroll_pixel_position: gpui::Point<Pixels>,
2112 gutter_dimensions: &GutterDimensions,
2113 gutter_hitbox: &Hitbox,
2114 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2115 snapshot: &EditorSnapshot,
2116 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2117 window: &mut Window,
2118 cx: &mut App,
2119 ) -> Vec<AnyElement> {
2120 self.editor.update(cx, |editor, cx| {
2121 let active_task_indicator_row =
2122 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2123 deployed_from_indicator,
2124 actions,
2125 ..
2126 })) = editor.context_menu.borrow().as_ref()
2127 {
2128 actions
2129 .tasks
2130 .as_ref()
2131 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2132 .or(*deployed_from_indicator)
2133 } else {
2134 None
2135 };
2136
2137 let offset_range_start =
2138 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2139
2140 let offset_range_end =
2141 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2142
2143 editor
2144 .tasks
2145 .iter()
2146 .filter_map(|(_, tasks)| {
2147 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2148 if multibuffer_point < offset_range_start
2149 || multibuffer_point > offset_range_end
2150 {
2151 return None;
2152 }
2153 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2154 let buffer_folded = snapshot
2155 .buffer_snapshot
2156 .buffer_line_for_row(multibuffer_row)
2157 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2158 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2159 .unwrap_or(false);
2160 if buffer_folded {
2161 return None;
2162 }
2163
2164 if snapshot.is_line_folded(multibuffer_row) {
2165 // Skip folded indicators, unless it's the starting line of a fold.
2166 if multibuffer_row
2167 .0
2168 .checked_sub(1)
2169 .map_or(false, |previous_row| {
2170 snapshot.is_line_folded(MultiBufferRow(previous_row))
2171 })
2172 {
2173 return None;
2174 }
2175 }
2176
2177 let display_row = multibuffer_point.to_display_point(snapshot).row();
2178 if row_infos
2179 .get((display_row - range.start).0 as usize)
2180 .is_some_and(|row_info| row_info.expand_info.is_some())
2181 {
2182 return None;
2183 }
2184 let button = editor.render_run_indicator(
2185 &self.style,
2186 Some(display_row) == active_task_indicator_row,
2187 display_row,
2188 breakpoints.remove(&display_row),
2189 cx,
2190 );
2191
2192 let button = prepaint_gutter_button(
2193 button,
2194 display_row,
2195 line_height,
2196 gutter_dimensions,
2197 scroll_pixel_position,
2198 gutter_hitbox,
2199 display_hunks,
2200 window,
2201 cx,
2202 );
2203 Some(button)
2204 })
2205 .collect_vec()
2206 })
2207 }
2208
2209 fn layout_expand_toggles(
2210 &self,
2211 gutter_hitbox: &Hitbox,
2212 gutter_dimensions: GutterDimensions,
2213 em_width: Pixels,
2214 line_height: Pixels,
2215 scroll_position: gpui::Point<f32>,
2216 buffer_rows: &[RowInfo],
2217 window: &mut Window,
2218 cx: &mut App,
2219 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2220 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2221
2222 let scroll_top = scroll_position.y * line_height;
2223
2224 let max_line_number_length = self
2225 .editor
2226 .read(cx)
2227 .buffer()
2228 .read(cx)
2229 .snapshot(cx)
2230 .widest_line_number()
2231 .ilog10()
2232 + 1;
2233
2234 let elements = buffer_rows
2235 .into_iter()
2236 .enumerate()
2237 .map(|(ix, row_info)| {
2238 let ExpandInfo {
2239 excerpt_id,
2240 direction,
2241 } = row_info.expand_info?;
2242
2243 let icon_name = match direction {
2244 ExpandExcerptDirection::Up => IconName::ExpandUp,
2245 ExpandExcerptDirection::Down => IconName::ExpandDown,
2246 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2247 };
2248
2249 let git_gutter_width = Self::gutter_strip_width(line_height);
2250 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2251
2252 let editor = self.editor.clone();
2253 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2254 && row_info
2255 .buffer_row
2256 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2257 || gutter_dimensions.right_padding == px(0.);
2258
2259 let width = if is_wide {
2260 available_width - px(2.)
2261 } else {
2262 available_width + em_width - px(2.)
2263 };
2264
2265 let toggle = IconButton::new(("expand", ix), icon_name)
2266 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2267 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2268 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2269 .width(width.into())
2270 .on_click(move |_, _, cx| {
2271 editor.update(cx, |editor, cx| {
2272 editor.expand_excerpt(excerpt_id, direction, cx);
2273 });
2274 })
2275 .tooltip(Tooltip::for_action_title(
2276 "Expand excerpt",
2277 &crate::actions::ExpandExcerpts::default(),
2278 ))
2279 .into_any_element();
2280
2281 let position = point(
2282 git_gutter_width + px(1.),
2283 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2284 );
2285 let origin = gutter_hitbox.origin + position;
2286
2287 Some((toggle, origin))
2288 })
2289 .collect();
2290
2291 elements
2292 }
2293
2294 fn layout_code_actions_indicator(
2295 &self,
2296 line_height: Pixels,
2297 newest_selection_head: DisplayPoint,
2298 scroll_pixel_position: gpui::Point<Pixels>,
2299 gutter_dimensions: &GutterDimensions,
2300 gutter_hitbox: &Hitbox,
2301 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2302 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2303 window: &mut Window,
2304 cx: &mut App,
2305 ) -> Option<AnyElement> {
2306 let mut active = false;
2307 let mut button = None;
2308 let row = newest_selection_head.row();
2309 self.editor.update(cx, |editor, cx| {
2310 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2311 deployed_from_indicator,
2312 ..
2313 })) = editor.context_menu.borrow().as_ref()
2314 {
2315 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2316 };
2317
2318 let breakpoint = breakpoint_points.get(&row);
2319 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2320 });
2321
2322 let button = button?;
2323 breakpoint_points.remove(&row);
2324
2325 let button = prepaint_gutter_button(
2326 button,
2327 row,
2328 line_height,
2329 gutter_dimensions,
2330 scroll_pixel_position,
2331 gutter_hitbox,
2332 display_hunks,
2333 window,
2334 cx,
2335 );
2336
2337 Some(button)
2338 }
2339
2340 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2341 if let Some(index) = participant_index {
2342 cx.theme().players().color_for_participant(index.0)
2343 } else {
2344 cx.theme().players().absent()
2345 }
2346 }
2347
2348 fn calculate_relative_line_numbers(
2349 &self,
2350 snapshot: &EditorSnapshot,
2351 rows: &Range<DisplayRow>,
2352 relative_to: Option<DisplayRow>,
2353 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2354 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2355 let Some(relative_to) = relative_to else {
2356 return relative_rows;
2357 };
2358
2359 let start = rows.start.min(relative_to);
2360 let end = rows.end.max(relative_to);
2361
2362 let buffer_rows = snapshot
2363 .row_infos(start)
2364 .take(1 + end.minus(start) as usize)
2365 .collect::<Vec<_>>();
2366
2367 let head_idx = relative_to.minus(start);
2368 let mut delta = 1;
2369 let mut i = head_idx + 1;
2370 while i < buffer_rows.len() as u32 {
2371 if buffer_rows[i as usize].buffer_row.is_some() {
2372 if rows.contains(&DisplayRow(i + start.0)) {
2373 relative_rows.insert(DisplayRow(i + start.0), delta);
2374 }
2375 delta += 1;
2376 }
2377 i += 1;
2378 }
2379 delta = 1;
2380 i = head_idx.min(buffer_rows.len() as u32 - 1);
2381 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2382 i -= 1;
2383 }
2384
2385 while i > 0 {
2386 i -= 1;
2387 if buffer_rows[i as usize].buffer_row.is_some() {
2388 if rows.contains(&DisplayRow(i + start.0)) {
2389 relative_rows.insert(DisplayRow(i + start.0), delta);
2390 }
2391 delta += 1;
2392 }
2393 }
2394
2395 relative_rows
2396 }
2397
2398 fn layout_line_numbers(
2399 &self,
2400 gutter_hitbox: Option<&Hitbox>,
2401 gutter_dimensions: GutterDimensions,
2402 line_height: Pixels,
2403 scroll_position: gpui::Point<f32>,
2404 rows: Range<DisplayRow>,
2405 buffer_rows: &[RowInfo],
2406 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2407 newest_selection_head: Option<DisplayPoint>,
2408 snapshot: &EditorSnapshot,
2409 window: &mut Window,
2410 cx: &mut App,
2411 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2412 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2413 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2414 });
2415 if !include_line_numbers {
2416 return Arc::default();
2417 }
2418
2419 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2420 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2421 let newest = editor.selections.newest::<Point>(cx);
2422 SelectionLayout::new(
2423 newest,
2424 editor.selections.line_mode,
2425 editor.cursor_shape,
2426 &snapshot.display_snapshot,
2427 true,
2428 true,
2429 None,
2430 )
2431 .head
2432 });
2433 let is_relative = editor.should_use_relative_line_numbers(cx);
2434 (newest_selection_head, is_relative)
2435 });
2436
2437 let relative_to = if is_relative {
2438 Some(newest_selection_head.row())
2439 } else {
2440 None
2441 };
2442 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2443 let mut line_number = String::new();
2444 let line_numbers = buffer_rows
2445 .into_iter()
2446 .enumerate()
2447 .flat_map(|(ix, row_info)| {
2448 let display_row = DisplayRow(rows.start.0 + ix as u32);
2449 line_number.clear();
2450 let non_relative_number = row_info.buffer_row? + 1;
2451 let number = relative_rows
2452 .get(&display_row)
2453 .unwrap_or(&non_relative_number);
2454 write!(&mut line_number, "{number}").unwrap();
2455 if row_info
2456 .diff_status
2457 .is_some_and(|status| status.is_deleted())
2458 {
2459 return None;
2460 }
2461
2462 let color = active_rows
2463 .get(&display_row)
2464 .and_then(|spec| {
2465 if spec.breakpoint {
2466 Some(cx.theme().colors().debugger_accent)
2467 } else if spec.selection {
2468 Some(cx.theme().colors().editor_active_line_number)
2469 } else {
2470 None
2471 }
2472 })
2473 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2474 let shaped_line = self
2475 .shape_line_number(SharedString::from(&line_number), color, window)
2476 .log_err()?;
2477 let scroll_top = scroll_position.y * line_height;
2478 let line_origin = gutter_hitbox.map(|hitbox| {
2479 hitbox.origin
2480 + point(
2481 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2482 ix as f32 * line_height - (scroll_top % line_height),
2483 )
2484 });
2485
2486 #[cfg(not(test))]
2487 let hitbox = line_origin.map(|line_origin| {
2488 window.insert_hitbox(
2489 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2490 false,
2491 )
2492 });
2493 #[cfg(test)]
2494 let hitbox = {
2495 let _ = line_origin;
2496 None
2497 };
2498
2499 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2500 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2501 let line_number = LineNumberLayout {
2502 shaped_line,
2503 hitbox,
2504 };
2505 Some((multi_buffer_row, line_number))
2506 })
2507 .collect();
2508 Arc::new(line_numbers)
2509 }
2510
2511 fn layout_crease_toggles(
2512 &self,
2513 rows: Range<DisplayRow>,
2514 row_infos: &[RowInfo],
2515 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2516 snapshot: &EditorSnapshot,
2517 window: &mut Window,
2518 cx: &mut App,
2519 ) -> Vec<Option<AnyElement>> {
2520 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2521 && snapshot.mode == EditorMode::Full
2522 && self.editor.read(cx).is_singleton(cx);
2523 if include_fold_statuses {
2524 row_infos
2525 .into_iter()
2526 .enumerate()
2527 .map(|(ix, info)| {
2528 if info.expand_info.is_some() {
2529 return None;
2530 }
2531 let row = info.multibuffer_row?;
2532 let display_row = DisplayRow(rows.start.0 + ix as u32);
2533 let active = active_rows.contains_key(&display_row);
2534
2535 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2536 })
2537 .collect()
2538 } else {
2539 Vec::new()
2540 }
2541 }
2542
2543 fn layout_crease_trailers(
2544 &self,
2545 buffer_rows: impl IntoIterator<Item = RowInfo>,
2546 snapshot: &EditorSnapshot,
2547 window: &mut Window,
2548 cx: &mut App,
2549 ) -> Vec<Option<AnyElement>> {
2550 buffer_rows
2551 .into_iter()
2552 .map(|row_info| {
2553 if row_info.expand_info.is_some() {
2554 return None;
2555 }
2556 if let Some(row) = row_info.multibuffer_row {
2557 snapshot.render_crease_trailer(row, window, cx)
2558 } else {
2559 None
2560 }
2561 })
2562 .collect()
2563 }
2564
2565 fn layout_lines(
2566 rows: Range<DisplayRow>,
2567 snapshot: &EditorSnapshot,
2568 style: &EditorStyle,
2569 editor_width: Pixels,
2570 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2571 window: &mut Window,
2572 cx: &mut App,
2573 ) -> Vec<LineWithInvisibles> {
2574 if rows.start >= rows.end {
2575 return Vec::new();
2576 }
2577
2578 // Show the placeholder when the editor is empty
2579 if snapshot.is_empty() {
2580 let font_size = style.text.font_size.to_pixels(window.rem_size());
2581 let placeholder_color = cx.theme().colors().text_placeholder;
2582 let placeholder_text = snapshot.placeholder_text();
2583
2584 let placeholder_lines = placeholder_text
2585 .as_ref()
2586 .map_or("", AsRef::as_ref)
2587 .split('\n')
2588 .skip(rows.start.0 as usize)
2589 .chain(iter::repeat(""))
2590 .take(rows.len());
2591 placeholder_lines
2592 .filter_map(move |line| {
2593 let run = TextRun {
2594 len: line.len(),
2595 font: style.text.font(),
2596 color: placeholder_color,
2597 background_color: None,
2598 underline: Default::default(),
2599 strikethrough: None,
2600 };
2601 window
2602 .text_system()
2603 .shape_line(line.to_string().into(), font_size, &[run])
2604 .log_err()
2605 })
2606 .map(|line| LineWithInvisibles {
2607 width: line.width,
2608 len: line.len,
2609 fragments: smallvec![LineFragment::Text(line)],
2610 invisibles: Vec::new(),
2611 font_size,
2612 })
2613 .collect()
2614 } else {
2615 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2616 LineWithInvisibles::from_chunks(
2617 chunks,
2618 &style,
2619 MAX_LINE_LEN,
2620 rows.len(),
2621 snapshot.mode,
2622 editor_width,
2623 is_row_soft_wrapped,
2624 window,
2625 cx,
2626 )
2627 }
2628 }
2629
2630 fn prepaint_lines(
2631 &self,
2632 start_row: DisplayRow,
2633 line_layouts: &mut [LineWithInvisibles],
2634 line_height: Pixels,
2635 scroll_pixel_position: gpui::Point<Pixels>,
2636 content_origin: gpui::Point<Pixels>,
2637 window: &mut Window,
2638 cx: &mut App,
2639 ) -> SmallVec<[AnyElement; 1]> {
2640 let mut line_elements = SmallVec::new();
2641 for (ix, line) in line_layouts.iter_mut().enumerate() {
2642 let row = start_row + DisplayRow(ix as u32);
2643 line.prepaint(
2644 line_height,
2645 scroll_pixel_position,
2646 row,
2647 content_origin,
2648 &mut line_elements,
2649 window,
2650 cx,
2651 );
2652 }
2653 line_elements
2654 }
2655
2656 fn render_block(
2657 &self,
2658 block: &Block,
2659 available_width: AvailableSpace,
2660 block_id: BlockId,
2661 block_row_start: DisplayRow,
2662 snapshot: &EditorSnapshot,
2663 text_x: Pixels,
2664 rows: &Range<DisplayRow>,
2665 line_layouts: &[LineWithInvisibles],
2666 gutter_dimensions: &GutterDimensions,
2667 line_height: Pixels,
2668 em_width: Pixels,
2669 text_hitbox: &Hitbox,
2670 editor_width: Pixels,
2671 scroll_width: &mut Pixels,
2672 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2673 selections: &[Selection<Point>],
2674 selected_buffer_ids: &Vec<BufferId>,
2675 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2676 sticky_header_excerpt_id: Option<ExcerptId>,
2677 window: &mut Window,
2678 cx: &mut App,
2679 ) -> (AnyElement, Size<Pixels>) {
2680 let mut element = match block {
2681 Block::Custom(block) => {
2682 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2683 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2684 let align_to = block_start.to_display_point(snapshot);
2685 let anchor_x = text_x
2686 + if rows.contains(&align_to.row()) {
2687 line_layouts[align_to.row().minus(rows.start) as usize]
2688 .x_for_index(align_to.column() as usize)
2689 } else {
2690 layout_line(
2691 align_to.row(),
2692 snapshot,
2693 &self.style,
2694 editor_width,
2695 is_row_soft_wrapped,
2696 window,
2697 cx,
2698 )
2699 .x_for_index(align_to.column() as usize)
2700 };
2701
2702 let selected = selections
2703 .binary_search_by(|selection| {
2704 if selection.end <= block_start {
2705 Ordering::Less
2706 } else if selection.start >= block_end {
2707 Ordering::Greater
2708 } else {
2709 Ordering::Equal
2710 }
2711 })
2712 .is_ok();
2713
2714 div()
2715 .size_full()
2716 .child(block.render(&mut BlockContext {
2717 window,
2718 app: cx,
2719 anchor_x,
2720 gutter_dimensions,
2721 line_height,
2722 em_width,
2723 block_id,
2724 selected,
2725 max_width: text_hitbox.size.width.max(*scroll_width),
2726 editor_style: &self.style,
2727 }))
2728 .into_any()
2729 }
2730
2731 Block::FoldedBuffer {
2732 first_excerpt,
2733 height,
2734 ..
2735 } => {
2736 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2737 let result = v_flex().id(block_id).w_full();
2738
2739 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2740 result
2741 .child(self.render_buffer_header(
2742 first_excerpt,
2743 true,
2744 selected,
2745 false,
2746 jump_data,
2747 window,
2748 cx,
2749 ))
2750 .into_any_element()
2751 }
2752
2753 Block::ExcerptBoundary {
2754 excerpt,
2755 height,
2756 starts_new_buffer,
2757 ..
2758 } => {
2759 let color = cx.theme().colors().clone();
2760 let mut result = v_flex().id(block_id).w_full();
2761
2762 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2763
2764 if *starts_new_buffer {
2765 if sticky_header_excerpt_id != Some(excerpt.id) {
2766 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2767
2768 result = result.child(self.render_buffer_header(
2769 excerpt, false, selected, false, jump_data, window, cx,
2770 ));
2771 } else {
2772 result =
2773 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2774 }
2775 } else {
2776 result = result.child(
2777 h_flex().relative().child(
2778 div()
2779 .top(line_height / 2.)
2780 .absolute()
2781 .w_full()
2782 .h_px()
2783 .bg(color.border_variant),
2784 ),
2785 );
2786 };
2787
2788 result.into_any()
2789 }
2790 };
2791
2792 // Discover the element's content height, then round up to the nearest multiple of line height.
2793 let preliminary_size = element.layout_as_root(
2794 size(available_width, AvailableSpace::MinContent),
2795 window,
2796 cx,
2797 );
2798 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2799 let final_size = if preliminary_size.height == quantized_height {
2800 preliminary_size
2801 } else {
2802 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2803 };
2804
2805 if let BlockId::Custom(custom_block_id) = block_id {
2806 if block.height() > 0 {
2807 let element_height_in_lines =
2808 ((final_size.height / line_height).ceil() as u32).max(1);
2809 if element_height_in_lines != block.height() {
2810 resized_blocks.insert(custom_block_id, element_height_in_lines);
2811 }
2812 }
2813 }
2814
2815 (element, final_size)
2816 }
2817
2818 fn render_buffer_header(
2819 &self,
2820 for_excerpt: &ExcerptInfo,
2821 is_folded: bool,
2822 is_selected: bool,
2823 is_sticky: bool,
2824 jump_data: JumpData,
2825 window: &mut Window,
2826 cx: &mut App,
2827 ) -> Div {
2828 let editor = self.editor.read(cx);
2829 let file_status = editor
2830 .buffer
2831 .read(cx)
2832 .all_diff_hunks_expanded()
2833 .then(|| {
2834 editor
2835 .project
2836 .as_ref()?
2837 .read(cx)
2838 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2839 })
2840 .flatten();
2841
2842 let include_root = editor
2843 .project
2844 .as_ref()
2845 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2846 .unwrap_or_default();
2847 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2848 let filename = path
2849 .as_ref()
2850 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2851 let parent_path = path.as_ref().and_then(|path| {
2852 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2853 });
2854 let focus_handle = editor.focus_handle(cx);
2855 let colors = cx.theme().colors();
2856
2857 div()
2858 .p_1()
2859 .w_full()
2860 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2861 .child(
2862 h_flex()
2863 .size_full()
2864 .gap_2()
2865 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2866 .pl_0p5()
2867 .pr_5()
2868 .rounded_sm()
2869 .when(is_sticky, |el| el.shadow_md())
2870 .border_1()
2871 .map(|div| {
2872 let border_color = if is_selected
2873 && is_folded
2874 && focus_handle.contains_focused(window, cx)
2875 {
2876 colors.border_focused
2877 } else {
2878 colors.border
2879 };
2880 div.border_color(border_color)
2881 })
2882 .bg(colors.editor_subheader_background)
2883 .hover(|style| style.bg(colors.element_hover))
2884 .map(|header| {
2885 let editor = self.editor.clone();
2886 let buffer_id = for_excerpt.buffer_id;
2887 let toggle_chevron_icon =
2888 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2889 header.child(
2890 div()
2891 .hover(|style| style.bg(colors.element_selected))
2892 .rounded_xs()
2893 .child(
2894 ButtonLike::new("toggle-buffer-fold")
2895 .style(ui::ButtonStyle::Transparent)
2896 .size(ButtonSize::Large)
2897 .width(px(24.).into())
2898 .children(toggle_chevron_icon)
2899 .tooltip({
2900 let focus_handle = focus_handle.clone();
2901 move |window, cx| {
2902 Tooltip::for_action_in(
2903 "Toggle Excerpt Fold",
2904 &ToggleFold,
2905 &focus_handle,
2906 window,
2907 cx,
2908 )
2909 }
2910 })
2911 .on_click(move |_, _, cx| {
2912 if is_folded {
2913 editor.update(cx, |editor, cx| {
2914 editor.unfold_buffer(buffer_id, cx);
2915 });
2916 } else {
2917 editor.update(cx, |editor, cx| {
2918 editor.fold_buffer(buffer_id, cx);
2919 });
2920 }
2921 }),
2922 ),
2923 )
2924 })
2925 .children(
2926 editor
2927 .addons
2928 .values()
2929 .filter_map(|addon| {
2930 addon.render_buffer_header_controls(for_excerpt, window, cx)
2931 })
2932 .take(1),
2933 )
2934 .child(
2935 h_flex()
2936 .cursor_pointer()
2937 .id("path header block")
2938 .size_full()
2939 .justify_between()
2940 .child(
2941 h_flex()
2942 .gap_2()
2943 .child(
2944 Label::new(
2945 filename
2946 .map(SharedString::from)
2947 .unwrap_or_else(|| "untitled".into()),
2948 )
2949 .single_line()
2950 .when_some(
2951 file_status,
2952 |el, status| {
2953 el.color(if status.is_conflicted() {
2954 Color::Conflict
2955 } else if status.is_modified() {
2956 Color::Modified
2957 } else if status.is_deleted() {
2958 Color::Disabled
2959 } else {
2960 Color::Created
2961 })
2962 .when(status.is_deleted(), |el| el.strikethrough())
2963 },
2964 ),
2965 )
2966 .when_some(parent_path, |then, path| {
2967 then.child(div().child(path).text_color(
2968 if file_status.is_some_and(FileStatus::is_deleted) {
2969 colors.text_disabled
2970 } else {
2971 colors.text_muted
2972 },
2973 ))
2974 }),
2975 )
2976 .when(is_selected, |el| {
2977 el.child(
2978 h_flex()
2979 .id("jump-to-file-button")
2980 .gap_2p5()
2981 .child(Label::new("Jump To File"))
2982 .children(
2983 KeyBinding::for_action_in(
2984 &OpenExcerpts,
2985 &focus_handle,
2986 window,
2987 cx,
2988 )
2989 .map(|binding| binding.into_any_element()),
2990 ),
2991 )
2992 })
2993 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2994 .on_click(window.listener_for(&self.editor, {
2995 move |editor, e: &ClickEvent, window, cx| {
2996 editor.open_excerpts_common(
2997 Some(jump_data.clone()),
2998 e.down.modifiers.secondary(),
2999 window,
3000 cx,
3001 );
3002 }
3003 })),
3004 ),
3005 )
3006 }
3007
3008 fn render_blocks(
3009 &self,
3010 rows: Range<DisplayRow>,
3011 snapshot: &EditorSnapshot,
3012 hitbox: &Hitbox,
3013 text_hitbox: &Hitbox,
3014 editor_width: Pixels,
3015 scroll_width: &mut Pixels,
3016 gutter_dimensions: &GutterDimensions,
3017 em_width: Pixels,
3018 text_x: Pixels,
3019 line_height: Pixels,
3020 line_layouts: &[LineWithInvisibles],
3021 selections: &[Selection<Point>],
3022 selected_buffer_ids: &Vec<BufferId>,
3023 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3024 sticky_header_excerpt_id: Option<ExcerptId>,
3025 window: &mut Window,
3026 cx: &mut App,
3027 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
3028 let (fixed_blocks, non_fixed_blocks) = snapshot
3029 .blocks_in_range(rows.clone())
3030 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3031
3032 let mut focused_block = self
3033 .editor
3034 .update(cx, |editor, _| editor.take_focused_block());
3035 let mut fixed_block_max_width = Pixels::ZERO;
3036 let mut blocks = Vec::new();
3037 let mut resized_blocks = HashMap::default();
3038
3039 for (row, block) in fixed_blocks {
3040 let block_id = block.id();
3041
3042 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3043 focused_block = None;
3044 }
3045
3046 let (element, element_size) = self.render_block(
3047 block,
3048 AvailableSpace::MinContent,
3049 block_id,
3050 row,
3051 snapshot,
3052 text_x,
3053 &rows,
3054 line_layouts,
3055 gutter_dimensions,
3056 line_height,
3057 em_width,
3058 text_hitbox,
3059 editor_width,
3060 scroll_width,
3061 &mut resized_blocks,
3062 selections,
3063 selected_buffer_ids,
3064 is_row_soft_wrapped,
3065 sticky_header_excerpt_id,
3066 window,
3067 cx,
3068 );
3069 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3070 blocks.push(BlockLayout {
3071 id: block_id,
3072 row: Some(row),
3073 element,
3074 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3075 style: BlockStyle::Fixed,
3076 is_buffer_header: block.is_buffer_header(),
3077 });
3078 }
3079
3080 for (row, block) in non_fixed_blocks {
3081 let style = block.style();
3082 let width = match style {
3083 BlockStyle::Sticky => hitbox.size.width,
3084 BlockStyle::Flex => hitbox
3085 .size
3086 .width
3087 .max(fixed_block_max_width)
3088 .max(gutter_dimensions.width + *scroll_width),
3089 BlockStyle::Fixed => unreachable!(),
3090 };
3091 let block_id = block.id();
3092
3093 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3094 focused_block = None;
3095 }
3096
3097 let (element, element_size) = self.render_block(
3098 block,
3099 width.into(),
3100 block_id,
3101 row,
3102 snapshot,
3103 text_x,
3104 &rows,
3105 line_layouts,
3106 gutter_dimensions,
3107 line_height,
3108 em_width,
3109 text_hitbox,
3110 editor_width,
3111 scroll_width,
3112 &mut resized_blocks,
3113 selections,
3114 selected_buffer_ids,
3115 is_row_soft_wrapped,
3116 sticky_header_excerpt_id,
3117 window,
3118 cx,
3119 );
3120
3121 blocks.push(BlockLayout {
3122 id: block_id,
3123 row: Some(row),
3124 element,
3125 available_space: size(width.into(), element_size.height.into()),
3126 style,
3127 is_buffer_header: block.is_buffer_header(),
3128 });
3129 }
3130
3131 if let Some(focused_block) = focused_block {
3132 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3133 if focus_handle.is_focused(window) {
3134 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3135 let style = block.style();
3136 let width = match style {
3137 BlockStyle::Fixed => AvailableSpace::MinContent,
3138 BlockStyle::Flex => AvailableSpace::Definite(
3139 hitbox
3140 .size
3141 .width
3142 .max(fixed_block_max_width)
3143 .max(gutter_dimensions.width + *scroll_width),
3144 ),
3145 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3146 };
3147
3148 let (element, element_size) = self.render_block(
3149 &block,
3150 width,
3151 focused_block.id,
3152 rows.end,
3153 snapshot,
3154 text_x,
3155 &rows,
3156 line_layouts,
3157 gutter_dimensions,
3158 line_height,
3159 em_width,
3160 text_hitbox,
3161 editor_width,
3162 scroll_width,
3163 &mut resized_blocks,
3164 selections,
3165 selected_buffer_ids,
3166 is_row_soft_wrapped,
3167 sticky_header_excerpt_id,
3168 window,
3169 cx,
3170 );
3171
3172 blocks.push(BlockLayout {
3173 id: block.id(),
3174 row: None,
3175 element,
3176 available_space: size(width, element_size.height.into()),
3177 style,
3178 is_buffer_header: block.is_buffer_header(),
3179 });
3180 }
3181 }
3182 }
3183 }
3184
3185 if resized_blocks.is_empty() {
3186 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3187 Ok(blocks)
3188 } else {
3189 Err(resized_blocks)
3190 }
3191 }
3192
3193 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3194 /// a restart of rendering for the editor based on the new sizes.
3195 fn layout_blocks(
3196 &self,
3197 blocks: &mut Vec<BlockLayout>,
3198 block_starts: &mut HashSet<DisplayRow>,
3199 hitbox: &Hitbox,
3200 line_height: Pixels,
3201 scroll_pixel_position: gpui::Point<Pixels>,
3202 window: &mut Window,
3203 cx: &mut App,
3204 ) {
3205 for block in blocks {
3206 let mut origin = if let Some(row) = block.row {
3207 block_starts.insert(row);
3208 hitbox.origin
3209 + point(
3210 Pixels::ZERO,
3211 row.as_f32() * line_height - scroll_pixel_position.y,
3212 )
3213 } else {
3214 // Position the block outside the visible area
3215 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3216 };
3217
3218 if !matches!(block.style, BlockStyle::Sticky) {
3219 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3220 }
3221
3222 let focus_handle =
3223 block
3224 .element
3225 .prepaint_as_root(origin, block.available_space, window, cx);
3226
3227 if let Some(focus_handle) = focus_handle {
3228 self.editor.update(cx, |editor, _cx| {
3229 editor.set_focused_block(FocusedBlock {
3230 id: block.id,
3231 focus_handle: focus_handle.downgrade(),
3232 });
3233 });
3234 }
3235 }
3236 }
3237
3238 fn layout_sticky_buffer_header(
3239 &self,
3240 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3241 scroll_position: f32,
3242 line_height: Pixels,
3243 snapshot: &EditorSnapshot,
3244 hitbox: &Hitbox,
3245 selected_buffer_ids: &Vec<BufferId>,
3246 blocks: &[BlockLayout],
3247 window: &mut Window,
3248 cx: &mut App,
3249 ) -> AnyElement {
3250 let jump_data = header_jump_data(
3251 snapshot,
3252 DisplayRow(scroll_position as u32),
3253 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3254 excerpt,
3255 );
3256
3257 let editor_bg_color = cx.theme().colors().editor_background;
3258
3259 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3260
3261 let mut header = v_flex()
3262 .relative()
3263 .child(
3264 div()
3265 .w(hitbox.bounds.size.width)
3266 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3267 .bg(linear_gradient(
3268 0.,
3269 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3270 linear_color_stop(editor_bg_color, 0.6),
3271 ))
3272 .absolute()
3273 .top_0(),
3274 )
3275 .child(
3276 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3277 .into_any_element(),
3278 )
3279 .into_any_element();
3280
3281 let mut origin = hitbox.origin;
3282 // Move floating header up to avoid colliding with the next buffer header.
3283 for block in blocks.iter() {
3284 if !block.is_buffer_header {
3285 continue;
3286 }
3287
3288 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3289 continue;
3290 };
3291
3292 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3293 let offset = scroll_position - max_row as f32;
3294
3295 if offset > 0.0 {
3296 origin.y -= Pixels(offset) * line_height;
3297 }
3298 break;
3299 }
3300
3301 let size = size(
3302 AvailableSpace::Definite(hitbox.size.width),
3303 AvailableSpace::MinContent,
3304 );
3305
3306 header.prepaint_as_root(origin, size, window, cx);
3307
3308 header
3309 }
3310
3311 fn layout_cursor_popovers(
3312 &self,
3313 line_height: Pixels,
3314 text_hitbox: &Hitbox,
3315 content_origin: gpui::Point<Pixels>,
3316 start_row: DisplayRow,
3317 scroll_pixel_position: gpui::Point<Pixels>,
3318 line_layouts: &[LineWithInvisibles],
3319 cursor: DisplayPoint,
3320 cursor_point: Point,
3321 style: &EditorStyle,
3322 window: &mut Window,
3323 cx: &mut App,
3324 ) {
3325 let mut min_menu_height = Pixels::ZERO;
3326 let mut max_menu_height = Pixels::ZERO;
3327 let mut height_above_menu = Pixels::ZERO;
3328 let height_below_menu = Pixels::ZERO;
3329 let mut edit_prediction_popover_visible = false;
3330 let mut context_menu_visible = false;
3331
3332 {
3333 let editor = self.editor.read(cx);
3334 if editor
3335 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3336 {
3337 height_above_menu +=
3338 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3339 edit_prediction_popover_visible = true;
3340 }
3341
3342 if editor.context_menu_visible() {
3343 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3344 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3345 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3346 context_menu_visible = true;
3347 }
3348 }
3349 }
3350
3351 let visible = edit_prediction_popover_visible || context_menu_visible;
3352 if !visible {
3353 return;
3354 }
3355
3356 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3357 let target_position = content_origin
3358 + gpui::Point {
3359 x: cmp::max(
3360 px(0.),
3361 cursor_row_layout.x_for_index(cursor.column() as usize)
3362 - scroll_pixel_position.x,
3363 ),
3364 y: cmp::max(
3365 px(0.),
3366 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3367 ),
3368 };
3369
3370 let viewport_bounds =
3371 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3372 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3373 ..Default::default()
3374 });
3375
3376 let min_height = height_above_menu + min_menu_height + height_below_menu;
3377 let max_height = height_above_menu + max_menu_height + height_below_menu;
3378 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3379 target_position,
3380 line_height,
3381 min_height,
3382 max_height,
3383 text_hitbox,
3384 viewport_bounds,
3385 window,
3386 cx,
3387 |height, max_width_for_stable_x, y_flipped, window, cx| {
3388 // First layout the menu to get its size - others can be at least this wide.
3389 let context_menu = if context_menu_visible {
3390 let menu_height = if y_flipped {
3391 height - height_below_menu
3392 } else {
3393 height - height_above_menu
3394 };
3395 let mut element = self
3396 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3397 .expect("Visible context menu should always render.");
3398 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3399 Some((CursorPopoverType::CodeContextMenu, element, size))
3400 } else {
3401 None
3402 };
3403 let min_width = context_menu
3404 .as_ref()
3405 .map_or(px(0.), |(_, _, size)| size.width);
3406 let max_width = max_width_for_stable_x.max(
3407 context_menu
3408 .as_ref()
3409 .map_or(px(0.), |(_, _, size)| size.width),
3410 );
3411
3412 let edit_prediction = if edit_prediction_popover_visible {
3413 self.editor.update(cx, move |editor, cx| {
3414 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3415 let mut element = editor.render_edit_prediction_cursor_popover(
3416 min_width,
3417 max_width,
3418 cursor_point,
3419 style,
3420 accept_binding.keystroke(),
3421 window,
3422 cx,
3423 )?;
3424 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3425 Some((CursorPopoverType::EditPrediction, element, size))
3426 })
3427 } else {
3428 None
3429 };
3430 vec![edit_prediction, context_menu]
3431 .into_iter()
3432 .flatten()
3433 .collect::<Vec<_>>()
3434 },
3435 ) else {
3436 return;
3437 };
3438
3439 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3440 .iter()
3441 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3442 else {
3443 return;
3444 };
3445 let last_ix = laid_out_popovers.len() - 1;
3446 let menu_is_last = menu_ix == last_ix;
3447 let first_popover_bounds = laid_out_popovers[0].1;
3448 let last_popover_bounds = laid_out_popovers[last_ix].1;
3449
3450 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3451 // right, and otherwise it goes below or to the right.
3452 let mut target_bounds = Bounds::from_corners(
3453 first_popover_bounds.origin,
3454 last_popover_bounds.bottom_right(),
3455 );
3456 target_bounds.size.width = menu_bounds.size.width;
3457
3458 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3459 // based on this is preferred for layout stability.
3460 let mut max_target_bounds = target_bounds;
3461 max_target_bounds.size.height = max_height;
3462 if y_flipped {
3463 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3464 }
3465
3466 // Add spacing around `target_bounds` and `max_target_bounds`.
3467 let mut extend_amount = Edges::all(MENU_GAP);
3468 if y_flipped {
3469 extend_amount.bottom = line_height;
3470 } else {
3471 extend_amount.top = line_height;
3472 }
3473 let target_bounds = target_bounds.extend(extend_amount);
3474 let max_target_bounds = max_target_bounds.extend(extend_amount);
3475
3476 let must_place_above_or_below =
3477 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3478 laid_out_popovers[menu_ix + 1..]
3479 .iter()
3480 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3481 } else {
3482 false
3483 };
3484
3485 self.layout_context_menu_aside(
3486 y_flipped,
3487 *menu_bounds,
3488 target_bounds,
3489 max_target_bounds,
3490 max_menu_height,
3491 must_place_above_or_below,
3492 text_hitbox,
3493 viewport_bounds,
3494 window,
3495 cx,
3496 );
3497 }
3498
3499 fn layout_gutter_menu(
3500 &self,
3501 line_height: Pixels,
3502 text_hitbox: &Hitbox,
3503 content_origin: gpui::Point<Pixels>,
3504 scroll_pixel_position: gpui::Point<Pixels>,
3505 gutter_overshoot: Pixels,
3506 window: &mut Window,
3507 cx: &mut App,
3508 ) {
3509 let editor = self.editor.read(cx);
3510 if !editor.context_menu_visible() {
3511 return;
3512 }
3513 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3514 editor.context_menu_origin()
3515 else {
3516 return;
3517 };
3518 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3519 // indicator than just a plain first column of the text field.
3520 let target_position = content_origin
3521 + gpui::Point {
3522 x: -gutter_overshoot,
3523 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3524 };
3525 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3526 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3527 let viewport_bounds =
3528 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3529 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3530 ..Default::default()
3531 });
3532 self.layout_popovers_above_or_below_line(
3533 target_position,
3534 line_height,
3535 min_height,
3536 max_height,
3537 text_hitbox,
3538 viewport_bounds,
3539 window,
3540 cx,
3541 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3542 let mut element = self
3543 .render_context_menu(line_height, height, y_flipped, window, cx)
3544 .expect("Visible context menu should always render.");
3545 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3546 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3547 },
3548 );
3549 }
3550
3551 fn layout_popovers_above_or_below_line(
3552 &self,
3553 target_position: gpui::Point<Pixels>,
3554 line_height: Pixels,
3555 min_height: Pixels,
3556 max_height: Pixels,
3557 text_hitbox: &Hitbox,
3558 viewport_bounds: Bounds<Pixels>,
3559 window: &mut Window,
3560 cx: &mut App,
3561 make_sized_popovers: impl FnOnce(
3562 Pixels,
3563 Pixels,
3564 bool,
3565 &mut Window,
3566 &mut App,
3567 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3568 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3569 let text_style = TextStyleRefinement {
3570 line_height: Some(DefiniteLength::Fraction(
3571 BufferLineHeight::Comfortable.value(),
3572 )),
3573 ..Default::default()
3574 };
3575 window.with_text_style(Some(text_style), |window| {
3576 // If the max height won't fit below and there is more space above, put it above the line.
3577 let bottom_y_when_flipped = target_position.y - line_height;
3578 let available_above = bottom_y_when_flipped - text_hitbox.top();
3579 let available_below = text_hitbox.bottom() - target_position.y;
3580 let y_overflows_below = max_height > available_below;
3581 let mut y_flipped = y_overflows_below && available_above > available_below;
3582 let mut height = cmp::min(
3583 max_height,
3584 if y_flipped {
3585 available_above
3586 } else {
3587 available_below
3588 },
3589 );
3590
3591 // If the min height doesn't fit within text bounds, instead fit within the window.
3592 if height < min_height {
3593 let available_above = bottom_y_when_flipped;
3594 let available_below = viewport_bounds.bottom() - target_position.y;
3595 if available_below > min_height {
3596 y_flipped = false;
3597 height = min_height;
3598 } else if available_above > min_height {
3599 y_flipped = true;
3600 height = min_height;
3601 } else if available_above > available_below {
3602 y_flipped = true;
3603 height = available_above;
3604 } else {
3605 y_flipped = false;
3606 height = available_below;
3607 }
3608 }
3609
3610 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3611
3612 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3613 // for very narrow windows.
3614 let popovers =
3615 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3616 if popovers.is_empty() {
3617 return None;
3618 }
3619
3620 let max_width = popovers
3621 .iter()
3622 .map(|(_, _, size)| size.width)
3623 .max()
3624 .unwrap_or_default();
3625
3626 let mut current_position = gpui::Point {
3627 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3628 // overflow. Include space for the scrollbar.
3629 x: target_position
3630 .x
3631 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3632 y: if y_flipped {
3633 bottom_y_when_flipped
3634 } else {
3635 target_position.y
3636 },
3637 };
3638
3639 let mut laid_out_popovers = popovers
3640 .into_iter()
3641 .map(|(popover_type, element, size)| {
3642 if y_flipped {
3643 current_position.y -= size.height;
3644 }
3645 let position = current_position;
3646 window.defer_draw(element, current_position, 1);
3647 if !y_flipped {
3648 current_position.y += size.height + MENU_GAP;
3649 } else {
3650 current_position.y -= MENU_GAP;
3651 }
3652 (popover_type, Bounds::new(position, size))
3653 })
3654 .collect::<Vec<_>>();
3655
3656 if y_flipped {
3657 laid_out_popovers.reverse();
3658 }
3659
3660 Some((laid_out_popovers, y_flipped))
3661 })
3662 }
3663
3664 fn layout_context_menu_aside(
3665 &self,
3666 y_flipped: bool,
3667 menu_bounds: Bounds<Pixels>,
3668 target_bounds: Bounds<Pixels>,
3669 max_target_bounds: Bounds<Pixels>,
3670 max_height: Pixels,
3671 must_place_above_or_below: bool,
3672 text_hitbox: &Hitbox,
3673 viewport_bounds: Bounds<Pixels>,
3674 window: &mut Window,
3675 cx: &mut App,
3676 ) {
3677 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3678 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3679 && !must_place_above_or_below
3680 {
3681 let max_width = cmp::min(
3682 available_within_viewport.right - px(1.),
3683 MENU_ASIDE_MAX_WIDTH,
3684 );
3685 let Some(mut aside) = self.render_context_menu_aside(
3686 size(max_width, max_height - POPOVER_Y_PADDING),
3687 window,
3688 cx,
3689 ) else {
3690 return;
3691 };
3692 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3693 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3694 Some((aside, right_position))
3695 } else {
3696 let max_size = size(
3697 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3698 // won't be needed here.
3699 cmp::min(
3700 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3701 viewport_bounds.right(),
3702 ),
3703 cmp::min(
3704 max_height,
3705 cmp::max(
3706 available_within_viewport.top,
3707 available_within_viewport.bottom,
3708 ),
3709 ) - POPOVER_Y_PADDING,
3710 );
3711 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3712 return;
3713 };
3714 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3715
3716 let top_position = point(
3717 menu_bounds.origin.x,
3718 target_bounds.top() - actual_size.height,
3719 );
3720 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3721
3722 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3723 // Prefer to fit on the same side of the line as the menu, then on the other side of
3724 // the line.
3725 if !y_flipped && wanted.height < available.bottom {
3726 Some(bottom_position)
3727 } else if !y_flipped && wanted.height < available.top {
3728 Some(top_position)
3729 } else if y_flipped && wanted.height < available.top {
3730 Some(top_position)
3731 } else if y_flipped && wanted.height < available.bottom {
3732 Some(bottom_position)
3733 } else {
3734 None
3735 }
3736 };
3737
3738 // Prefer choosing a direction using max sizes rather than actual size for stability.
3739 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3740 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3741 let aside_position = fit_within(available_within_text, wanted)
3742 // Fallback: fit max size in window.
3743 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3744 // Fallback: fit actual size in window.
3745 .or_else(|| fit_within(available_within_viewport, actual_size));
3746
3747 aside_position.map(|position| (aside, position))
3748 };
3749
3750 // Skip drawing if it doesn't fit anywhere.
3751 if let Some((aside, position)) = positioned_aside {
3752 window.defer_draw(aside, position, 2);
3753 }
3754 }
3755
3756 fn render_context_menu(
3757 &self,
3758 line_height: Pixels,
3759 height: Pixels,
3760 y_flipped: bool,
3761 window: &mut Window,
3762 cx: &mut App,
3763 ) -> Option<AnyElement> {
3764 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3765 self.editor.update(cx, |editor, cx| {
3766 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3767 })
3768 }
3769
3770 fn render_context_menu_aside(
3771 &self,
3772 max_size: Size<Pixels>,
3773 window: &mut Window,
3774 cx: &mut App,
3775 ) -> Option<AnyElement> {
3776 if max_size.width < px(100.) || max_size.height < px(12.) {
3777 None
3778 } else {
3779 self.editor.update(cx, |editor, cx| {
3780 editor.render_context_menu_aside(max_size, window, cx)
3781 })
3782 }
3783 }
3784
3785 fn layout_mouse_context_menu(
3786 &self,
3787 editor_snapshot: &EditorSnapshot,
3788 visible_range: Range<DisplayRow>,
3789 content_origin: gpui::Point<Pixels>,
3790 window: &mut Window,
3791 cx: &mut App,
3792 ) -> Option<AnyElement> {
3793 let position = self.editor.update(cx, |editor, _cx| {
3794 let visible_start_point = editor.display_to_pixel_point(
3795 DisplayPoint::new(visible_range.start, 0),
3796 editor_snapshot,
3797 window,
3798 )?;
3799 let visible_end_point = editor.display_to_pixel_point(
3800 DisplayPoint::new(visible_range.end, 0),
3801 editor_snapshot,
3802 window,
3803 )?;
3804
3805 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3806 let (source_display_point, position) = match mouse_context_menu.position {
3807 MenuPosition::PinnedToScreen(point) => (None, point),
3808 MenuPosition::PinnedToEditor { source, offset } => {
3809 let source_display_point = source.to_display_point(editor_snapshot);
3810 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3811 let position = content_origin + source_point + offset;
3812 (Some(source_display_point), position)
3813 }
3814 };
3815
3816 let source_included = source_display_point.map_or(true, |source_display_point| {
3817 visible_range
3818 .to_inclusive()
3819 .contains(&source_display_point.row())
3820 });
3821 let position_included =
3822 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3823 if !source_included && !position_included {
3824 None
3825 } else {
3826 Some(position)
3827 }
3828 })?;
3829
3830 let text_style = TextStyleRefinement {
3831 line_height: Some(DefiniteLength::Fraction(
3832 BufferLineHeight::Comfortable.value(),
3833 )),
3834 ..Default::default()
3835 };
3836 window.with_text_style(Some(text_style), |window| {
3837 let mut element = self.editor.update(cx, |editor, _| {
3838 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3839 let context_menu = mouse_context_menu.context_menu.clone();
3840
3841 Some(
3842 deferred(
3843 anchored()
3844 .position(position)
3845 .child(context_menu)
3846 .anchor(Corner::TopLeft)
3847 .snap_to_window_with_margin(px(8.)),
3848 )
3849 .with_priority(1)
3850 .into_any(),
3851 )
3852 })?;
3853
3854 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3855 Some(element)
3856 })
3857 }
3858
3859 fn layout_hover_popovers(
3860 &self,
3861 snapshot: &EditorSnapshot,
3862 hitbox: &Hitbox,
3863 text_hitbox: &Hitbox,
3864 visible_display_row_range: Range<DisplayRow>,
3865 content_origin: gpui::Point<Pixels>,
3866 scroll_pixel_position: gpui::Point<Pixels>,
3867 line_layouts: &[LineWithInvisibles],
3868 line_height: Pixels,
3869 em_width: Pixels,
3870 window: &mut Window,
3871 cx: &mut App,
3872 ) {
3873 struct MeasuredHoverPopover {
3874 element: AnyElement,
3875 size: Size<Pixels>,
3876 horizontal_offset: Pixels,
3877 }
3878
3879 let max_size = size(
3880 (120. * em_width) // Default size
3881 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3882 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3883 (16. * line_height) // Default size
3884 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3885 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3886 );
3887
3888 let hover_popovers = self.editor.update(cx, |editor, cx| {
3889 editor
3890 .hover_state
3891 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3892 });
3893 let Some((position, hover_popovers)) = hover_popovers else {
3894 return;
3895 };
3896
3897 // This is safe because we check on layout whether the required row is available
3898 let hovered_row_layout =
3899 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3900
3901 // Compute Hovered Point
3902 let x =
3903 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3904 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3905 let hovered_point = content_origin + point(x, y);
3906
3907 let mut overall_height = Pixels::ZERO;
3908 let mut measured_hover_popovers = Vec::new();
3909 for mut hover_popover in hover_popovers {
3910 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3911 let horizontal_offset =
3912 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3913
3914 overall_height += HOVER_POPOVER_GAP + size.height;
3915
3916 measured_hover_popovers.push(MeasuredHoverPopover {
3917 element: hover_popover,
3918 size,
3919 horizontal_offset,
3920 });
3921 }
3922 overall_height += HOVER_POPOVER_GAP;
3923
3924 fn draw_occluder(
3925 width: Pixels,
3926 origin: gpui::Point<Pixels>,
3927 window: &mut Window,
3928 cx: &mut App,
3929 ) {
3930 let mut occlusion = div()
3931 .size_full()
3932 .occlude()
3933 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3934 .into_any_element();
3935 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3936 window.defer_draw(occlusion, origin, 2);
3937 }
3938
3939 if hovered_point.y > overall_height {
3940 // There is enough space above. Render popovers above the hovered point
3941 let mut current_y = hovered_point.y;
3942 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3943 let size = popover.size;
3944 let popover_origin = point(
3945 hovered_point.x + popover.horizontal_offset,
3946 current_y - size.height,
3947 );
3948
3949 window.defer_draw(popover.element, popover_origin, 2);
3950 if position != itertools::Position::Last {
3951 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3952 draw_occluder(size.width, origin, window, cx);
3953 }
3954
3955 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3956 }
3957 } else {
3958 // There is not enough space above. Render popovers below the hovered point
3959 let mut current_y = hovered_point.y + line_height;
3960 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3961 let size = popover.size;
3962 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3963
3964 window.defer_draw(popover.element, popover_origin, 2);
3965 if position != itertools::Position::Last {
3966 let origin = point(popover_origin.x, popover_origin.y + size.height);
3967 draw_occluder(size.width, origin, window, cx);
3968 }
3969
3970 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3971 }
3972 }
3973 }
3974
3975 fn layout_diff_hunk_controls(
3976 &self,
3977 row_range: Range<DisplayRow>,
3978 row_infos: &[RowInfo],
3979 text_hitbox: &Hitbox,
3980 position_map: &PositionMap,
3981 newest_cursor_position: Option<DisplayPoint>,
3982 line_height: Pixels,
3983 scroll_pixel_position: gpui::Point<Pixels>,
3984 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3985 editor: Entity<Editor>,
3986 window: &mut Window,
3987 cx: &mut App,
3988 ) -> Vec<AnyElement> {
3989 let point_for_position = position_map.point_for_position(window.mouse_position());
3990
3991 let mut controls = vec![];
3992
3993 let active_positions = [
3994 Some(point_for_position.previous_valid),
3995 newest_cursor_position,
3996 ];
3997
3998 for (hunk, _) in display_hunks {
3999 if let DisplayDiffHunk::Unfolded {
4000 display_row_range,
4001 multi_buffer_range,
4002 status,
4003 is_created_file,
4004 ..
4005 } = &hunk
4006 {
4007 if display_row_range.start < row_range.start
4008 || display_row_range.start >= row_range.end
4009 {
4010 continue;
4011 }
4012 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4013 if row_infos[row_ix].diff_status.is_none() {
4014 continue;
4015 }
4016 if row_infos[row_ix]
4017 .diff_status
4018 .is_some_and(|status| status.is_added())
4019 && !status.is_added()
4020 {
4021 continue;
4022 }
4023 if active_positions
4024 .iter()
4025 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4026 {
4027 let y = display_row_range.start.as_f32() * line_height
4028 + text_hitbox.bounds.top()
4029 - scroll_pixel_position.y;
4030
4031 let mut element = diff_hunk_controls(
4032 display_row_range.start.0,
4033 status,
4034 multi_buffer_range.clone(),
4035 *is_created_file,
4036 line_height,
4037 &editor,
4038 cx,
4039 );
4040 let size =
4041 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4042
4043 let x = text_hitbox.bounds.right()
4044 - self.style.scrollbar_width
4045 - px(10.)
4046 - size.width;
4047
4048 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4049 element.prepaint(window, cx)
4050 });
4051 controls.push(element);
4052 }
4053 }
4054 }
4055
4056 controls
4057 }
4058
4059 fn layout_signature_help(
4060 &self,
4061 hitbox: &Hitbox,
4062 content_origin: gpui::Point<Pixels>,
4063 scroll_pixel_position: gpui::Point<Pixels>,
4064 newest_selection_head: Option<DisplayPoint>,
4065 start_row: DisplayRow,
4066 line_layouts: &[LineWithInvisibles],
4067 line_height: Pixels,
4068 em_width: Pixels,
4069 window: &mut Window,
4070 cx: &mut App,
4071 ) {
4072 if !self.editor.focus_handle(cx).is_focused(window) {
4073 return;
4074 }
4075 let Some(newest_selection_head) = newest_selection_head else {
4076 return;
4077 };
4078 let selection_row = newest_selection_head.row();
4079 if selection_row < start_row {
4080 return;
4081 }
4082 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4083 else {
4084 return;
4085 };
4086
4087 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4088 - scroll_pixel_position.x
4089 + content_origin.x;
4090 let start_y =
4091 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4092
4093 let max_size = size(
4094 (120. * em_width) // Default size
4095 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4096 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4097 (16. * line_height) // Default size
4098 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4099 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4100 );
4101
4102 let maybe_element = self.editor.update(cx, |editor, cx| {
4103 if let Some(popover) = editor.signature_help_state.popover_mut() {
4104 let element = popover.render(max_size, cx);
4105 Some(element)
4106 } else {
4107 None
4108 }
4109 });
4110 if let Some(mut element) = maybe_element {
4111 let window_size = window.viewport_size();
4112 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4113 let mut point = point(start_x, start_y - size.height);
4114
4115 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4116 if point.x + size.width >= window_size.width {
4117 point.x = window_size.width - size.width;
4118 }
4119
4120 window.defer_draw(element, point, 1)
4121 }
4122 }
4123
4124 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4125 window.paint_layer(layout.hitbox.bounds, |window| {
4126 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4127 let gutter_bg = cx.theme().colors().editor_gutter_background;
4128 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4129 window.paint_quad(fill(
4130 layout.position_map.text_hitbox.bounds,
4131 self.style.background,
4132 ));
4133
4134 if let EditorMode::Full = layout.mode {
4135 let mut active_rows = layout.active_rows.iter().peekable();
4136 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4137 let mut end_row = start_row.0;
4138 while active_rows
4139 .peek()
4140 .map_or(false, |(active_row, has_selection)| {
4141 active_row.0 == end_row + 1
4142 && has_selection.selection == contains_non_empty_selection.selection
4143 })
4144 {
4145 active_rows.next().unwrap();
4146 end_row += 1;
4147 }
4148
4149 if !contains_non_empty_selection.selection {
4150 let highlight_h_range =
4151 match layout.position_map.snapshot.current_line_highlight {
4152 CurrentLineHighlight::Gutter => Some(Range {
4153 start: layout.hitbox.left(),
4154 end: layout.gutter_hitbox.right(),
4155 }),
4156 CurrentLineHighlight::Line => Some(Range {
4157 start: layout.position_map.text_hitbox.bounds.left(),
4158 end: layout.position_map.text_hitbox.bounds.right(),
4159 }),
4160 CurrentLineHighlight::All => Some(Range {
4161 start: layout.hitbox.left(),
4162 end: layout.hitbox.right(),
4163 }),
4164 CurrentLineHighlight::None => None,
4165 };
4166 if let Some(range) = highlight_h_range {
4167 let active_line_bg = cx.theme().colors().editor_active_line_background;
4168 let bounds = Bounds {
4169 origin: point(
4170 range.start,
4171 layout.hitbox.origin.y
4172 + (start_row.as_f32() - scroll_top)
4173 * layout.position_map.line_height,
4174 ),
4175 size: size(
4176 range.end - range.start,
4177 layout.position_map.line_height
4178 * (end_row - start_row.0 + 1) as f32,
4179 ),
4180 };
4181 window.paint_quad(fill(bounds, active_line_bg));
4182 }
4183 }
4184 }
4185
4186 let mut paint_highlight = |highlight_row_start: DisplayRow,
4187 highlight_row_end: DisplayRow,
4188 highlight: crate::LineHighlight,
4189 edges| {
4190 let origin = point(
4191 layout.hitbox.origin.x,
4192 layout.hitbox.origin.y
4193 + (highlight_row_start.as_f32() - scroll_top)
4194 * layout.position_map.line_height,
4195 );
4196 let size = size(
4197 layout.hitbox.size.width,
4198 layout.position_map.line_height
4199 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4200 );
4201 let mut quad = fill(Bounds { origin, size }, highlight.background);
4202 if let Some(border_color) = highlight.border {
4203 quad.border_color = border_color;
4204 quad.border_widths = edges
4205 }
4206 window.paint_quad(quad);
4207 };
4208
4209 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4210 None;
4211 for (&new_row, &new_background) in &layout.highlighted_rows {
4212 match &mut current_paint {
4213 Some((current_background, current_range, mut edges)) => {
4214 let current_background = *current_background;
4215 let new_range_started = current_background != new_background
4216 || current_range.end.next_row() != new_row;
4217 if new_range_started {
4218 if current_range.end.next_row() == new_row {
4219 edges.bottom = px(0.);
4220 };
4221 paint_highlight(
4222 current_range.start,
4223 current_range.end,
4224 current_background,
4225 edges,
4226 );
4227 let edges = Edges {
4228 top: if current_range.end.next_row() != new_row {
4229 px(1.)
4230 } else {
4231 px(0.)
4232 },
4233 bottom: px(1.),
4234 ..Default::default()
4235 };
4236 current_paint = Some((new_background, new_row..new_row, edges));
4237 continue;
4238 } else {
4239 current_range.end = current_range.end.next_row();
4240 }
4241 }
4242 None => {
4243 let edges = Edges {
4244 top: px(1.),
4245 bottom: px(1.),
4246 ..Default::default()
4247 };
4248 current_paint = Some((new_background, new_row..new_row, edges))
4249 }
4250 };
4251 }
4252 if let Some((color, range, edges)) = current_paint {
4253 paint_highlight(range.start, range.end, color, edges);
4254 }
4255
4256 let scroll_left =
4257 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4258
4259 for (wrap_position, active) in layout.wrap_guides.iter() {
4260 let x = (layout.position_map.text_hitbox.origin.x
4261 + *wrap_position
4262 + layout.position_map.em_width / 2.)
4263 - scroll_left;
4264
4265 let show_scrollbars = {
4266 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4267
4268 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4269 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4270 };
4271
4272 if x < layout.position_map.text_hitbox.origin.x
4273 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4274 {
4275 continue;
4276 }
4277
4278 let color = if *active {
4279 cx.theme().colors().editor_active_wrap_guide
4280 } else {
4281 cx.theme().colors().editor_wrap_guide
4282 };
4283 window.paint_quad(fill(
4284 Bounds {
4285 origin: point(x, layout.position_map.text_hitbox.origin.y),
4286 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4287 },
4288 color,
4289 ));
4290 }
4291 }
4292 })
4293 }
4294
4295 fn paint_indent_guides(
4296 &mut self,
4297 layout: &mut EditorLayout,
4298 window: &mut Window,
4299 cx: &mut App,
4300 ) {
4301 let Some(indent_guides) = &layout.indent_guides else {
4302 return;
4303 };
4304
4305 let faded_color = |color: Hsla, alpha: f32| {
4306 let mut faded = color;
4307 faded.a = alpha;
4308 faded
4309 };
4310
4311 for indent_guide in indent_guides {
4312 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4313 let settings = indent_guide.settings;
4314
4315 // TODO fixed for now, expose them through themes later
4316 const INDENT_AWARE_ALPHA: f32 = 0.2;
4317 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4318 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4319 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4320
4321 let line_color = match (settings.coloring, indent_guide.active) {
4322 (IndentGuideColoring::Disabled, _) => None,
4323 (IndentGuideColoring::Fixed, false) => {
4324 Some(cx.theme().colors().editor_indent_guide)
4325 }
4326 (IndentGuideColoring::Fixed, true) => {
4327 Some(cx.theme().colors().editor_indent_guide_active)
4328 }
4329 (IndentGuideColoring::IndentAware, false) => {
4330 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4331 }
4332 (IndentGuideColoring::IndentAware, true) => {
4333 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4334 }
4335 };
4336
4337 let background_color = match (settings.background_coloring, indent_guide.active) {
4338 (IndentGuideBackgroundColoring::Disabled, _) => None,
4339 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4340 indent_accent_colors,
4341 INDENT_AWARE_BACKGROUND_ALPHA,
4342 )),
4343 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4344 indent_accent_colors,
4345 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4346 )),
4347 };
4348
4349 let requested_line_width = if indent_guide.active {
4350 settings.active_line_width
4351 } else {
4352 settings.line_width
4353 }
4354 .clamp(1, 10);
4355 let mut line_indicator_width = 0.;
4356 if let Some(color) = line_color {
4357 window.paint_quad(fill(
4358 Bounds {
4359 origin: indent_guide.origin,
4360 size: size(px(requested_line_width as f32), indent_guide.length),
4361 },
4362 color,
4363 ));
4364 line_indicator_width = requested_line_width as f32;
4365 }
4366
4367 if let Some(color) = background_color {
4368 let width = indent_guide.single_indent_width - px(line_indicator_width);
4369 window.paint_quad(fill(
4370 Bounds {
4371 origin: point(
4372 indent_guide.origin.x + px(line_indicator_width),
4373 indent_guide.origin.y,
4374 ),
4375 size: size(width, indent_guide.length),
4376 },
4377 color,
4378 ));
4379 }
4380 }
4381 }
4382
4383 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4384 let is_singleton = self.editor.read(cx).is_singleton(cx);
4385
4386 let line_height = layout.position_map.line_height;
4387 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4388
4389 for LineNumberLayout {
4390 shaped_line,
4391 hitbox,
4392 } in layout.line_numbers.values()
4393 {
4394 let Some(hitbox) = hitbox else {
4395 continue;
4396 };
4397
4398 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4399 let color = cx.theme().colors().editor_hover_line_number;
4400
4401 let Some(line) = self
4402 .shape_line_number(shaped_line.text.clone(), color, window)
4403 .log_err()
4404 else {
4405 continue;
4406 };
4407
4408 line.paint(hitbox.origin, line_height, window, cx).log_err()
4409 } else {
4410 shaped_line
4411 .paint(hitbox.origin, line_height, window, cx)
4412 .log_err()
4413 }) else {
4414 continue;
4415 };
4416
4417 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4418 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4419 if is_singleton {
4420 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4421 } else {
4422 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4423 }
4424 }
4425 }
4426
4427 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4428 if layout.display_hunks.is_empty() {
4429 return;
4430 }
4431
4432 let line_height = layout.position_map.line_height;
4433 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4434 for (hunk, hitbox) in &layout.display_hunks {
4435 let hunk_to_paint = match hunk {
4436 DisplayDiffHunk::Folded { .. } => {
4437 let hunk_bounds = Self::diff_hunk_bounds(
4438 &layout.position_map.snapshot,
4439 line_height,
4440 layout.gutter_hitbox.bounds,
4441 &hunk,
4442 );
4443 Some((
4444 hunk_bounds,
4445 cx.theme().colors().version_control_modified,
4446 Corners::all(px(0.)),
4447 DiffHunkStatus::modified_none(),
4448 ))
4449 }
4450 DisplayDiffHunk::Unfolded {
4451 status,
4452 display_row_range,
4453 ..
4454 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4455 DiffHunkStatusKind::Added => (
4456 hunk_hitbox.bounds,
4457 cx.theme().colors().version_control_added,
4458 Corners::all(px(0.)),
4459 *status,
4460 ),
4461 DiffHunkStatusKind::Modified => (
4462 hunk_hitbox.bounds,
4463 cx.theme().colors().version_control_modified,
4464 Corners::all(px(0.)),
4465 *status,
4466 ),
4467 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4468 hunk_hitbox.bounds,
4469 cx.theme().colors().version_control_deleted,
4470 Corners::all(px(0.)),
4471 *status,
4472 ),
4473 DiffHunkStatusKind::Deleted => (
4474 Bounds::new(
4475 point(
4476 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4477 hunk_hitbox.origin.y,
4478 ),
4479 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4480 ),
4481 cx.theme().colors().version_control_deleted,
4482 Corners::all(1. * line_height),
4483 *status,
4484 ),
4485 }),
4486 };
4487
4488 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4489 // Flatten the background color with the editor color to prevent
4490 // elements below transparent hunks from showing through
4491 let flattened_background_color = cx
4492 .theme()
4493 .colors()
4494 .editor_background
4495 .blend(background_color);
4496
4497 if !Self::diff_hunk_hollow(status, cx) {
4498 window.paint_quad(quad(
4499 hunk_bounds,
4500 corner_radii,
4501 flattened_background_color,
4502 Edges::default(),
4503 transparent_black(),
4504 ));
4505 } else {
4506 let flattened_unstaged_background_color = cx
4507 .theme()
4508 .colors()
4509 .editor_background
4510 .blend(background_color.opacity(0.3));
4511
4512 window.paint_quad(quad(
4513 hunk_bounds,
4514 corner_radii,
4515 flattened_unstaged_background_color,
4516 Edges::all(Pixels(1.0)),
4517 flattened_background_color,
4518 ));
4519 }
4520 }
4521 }
4522 });
4523 }
4524
4525 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4526 (0.275 * line_height).floor()
4527 }
4528
4529 fn diff_hunk_bounds(
4530 snapshot: &EditorSnapshot,
4531 line_height: Pixels,
4532 gutter_bounds: Bounds<Pixels>,
4533 hunk: &DisplayDiffHunk,
4534 ) -> Bounds<Pixels> {
4535 let scroll_position = snapshot.scroll_position();
4536 let scroll_top = scroll_position.y * line_height;
4537 let gutter_strip_width = Self::gutter_strip_width(line_height);
4538
4539 match hunk {
4540 DisplayDiffHunk::Folded { display_row, .. } => {
4541 let start_y = display_row.as_f32() * line_height - scroll_top;
4542 let end_y = start_y + line_height;
4543 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4544 let highlight_size = size(gutter_strip_width, end_y - start_y);
4545 Bounds::new(highlight_origin, highlight_size)
4546 }
4547 DisplayDiffHunk::Unfolded {
4548 display_row_range,
4549 status,
4550 ..
4551 } => {
4552 if status.is_deleted() && display_row_range.is_empty() {
4553 let row = display_row_range.start;
4554
4555 let offset = line_height / 2.;
4556 let start_y = row.as_f32() * line_height - offset - scroll_top;
4557 let end_y = start_y + line_height;
4558
4559 let width = (0.35 * line_height).floor();
4560 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4561 let highlight_size = size(width, end_y - start_y);
4562 Bounds::new(highlight_origin, highlight_size)
4563 } else {
4564 let start_row = display_row_range.start;
4565 let end_row = display_row_range.end;
4566 // If we're in a multibuffer, row range span might include an
4567 // excerpt header, so if we were to draw the marker straight away,
4568 // the hunk might include the rows of that header.
4569 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4570 // Instead, we simply check whether the range we're dealing with includes
4571 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4572 let end_row_in_current_excerpt = snapshot
4573 .blocks_in_range(start_row..end_row)
4574 .find_map(|(start_row, block)| {
4575 if matches!(block, Block::ExcerptBoundary { .. }) {
4576 Some(start_row)
4577 } else {
4578 None
4579 }
4580 })
4581 .unwrap_or(end_row);
4582
4583 let start_y = start_row.as_f32() * line_height - scroll_top;
4584 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4585
4586 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4587 let highlight_size = size(gutter_strip_width, end_y - start_y);
4588 Bounds::new(highlight_origin, highlight_size)
4589 }
4590 }
4591 }
4592 }
4593
4594 fn paint_gutter_indicators(
4595 &self,
4596 layout: &mut EditorLayout,
4597 window: &mut Window,
4598 cx: &mut App,
4599 ) {
4600 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4601 window.with_element_namespace("crease_toggles", |window| {
4602 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4603 crease_toggle.paint(window, cx);
4604 }
4605 });
4606
4607 window.with_element_namespace("expand_toggles", |window| {
4608 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4609 expand_toggle.paint(window, cx);
4610 }
4611 });
4612
4613 for breakpoint in layout.breakpoints.iter_mut() {
4614 breakpoint.paint(window, cx);
4615 }
4616
4617 for test_indicator in layout.test_indicators.iter_mut() {
4618 test_indicator.paint(window, cx);
4619 }
4620
4621 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4622 indicator.paint(window, cx);
4623 }
4624 });
4625 }
4626
4627 fn paint_gutter_highlights(
4628 &self,
4629 layout: &mut EditorLayout,
4630 window: &mut Window,
4631 cx: &mut App,
4632 ) {
4633 for (_, hunk_hitbox) in &layout.display_hunks {
4634 if let Some(hunk_hitbox) = hunk_hitbox {
4635 if !self
4636 .editor
4637 .read(cx)
4638 .buffer()
4639 .read(cx)
4640 .all_diff_hunks_expanded()
4641 {
4642 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4643 }
4644 }
4645 }
4646
4647 let show_git_gutter = layout
4648 .position_map
4649 .snapshot
4650 .show_git_diff_gutter
4651 .unwrap_or_else(|| {
4652 matches!(
4653 ProjectSettings::get_global(cx).git.git_gutter,
4654 Some(GitGutterSetting::TrackedFiles)
4655 )
4656 });
4657 if show_git_gutter {
4658 Self::paint_gutter_diff_hunks(layout, window, cx)
4659 }
4660
4661 let highlight_width = 0.275 * layout.position_map.line_height;
4662 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4663 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4664 for (range, color) in &layout.highlighted_gutter_ranges {
4665 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4666 layout.visible_display_row_range.start - DisplayRow(1)
4667 } else {
4668 range.start.row()
4669 };
4670 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4671 layout.visible_display_row_range.end + DisplayRow(1)
4672 } else {
4673 range.end.row()
4674 };
4675
4676 let start_y = layout.gutter_hitbox.top()
4677 + start_row.0 as f32 * layout.position_map.line_height
4678 - layout.position_map.scroll_pixel_position.y;
4679 let end_y = layout.gutter_hitbox.top()
4680 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4681 - layout.position_map.scroll_pixel_position.y;
4682 let bounds = Bounds::from_corners(
4683 point(layout.gutter_hitbox.left(), start_y),
4684 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4685 );
4686 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4687 }
4688 });
4689 }
4690
4691 fn paint_blamed_display_rows(
4692 &self,
4693 layout: &mut EditorLayout,
4694 window: &mut Window,
4695 cx: &mut App,
4696 ) {
4697 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4698 return;
4699 };
4700
4701 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4702 for mut blame_element in blamed_display_rows.into_iter() {
4703 blame_element.paint(window, cx);
4704 }
4705 })
4706 }
4707
4708 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4709 window.with_content_mask(
4710 Some(ContentMask {
4711 bounds: layout.position_map.text_hitbox.bounds,
4712 }),
4713 |window| {
4714 let cursor_style = if self
4715 .editor
4716 .read(cx)
4717 .hovered_link_state
4718 .as_ref()
4719 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4720 {
4721 CursorStyle::PointingHand
4722 } else {
4723 CursorStyle::IBeam
4724 };
4725 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4726
4727 self.paint_lines_background(layout, window, cx);
4728 let invisible_display_ranges = self.paint_highlights(layout, window);
4729 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4730 self.paint_redactions(layout, window);
4731 self.paint_cursors(layout, window, cx);
4732 self.paint_inline_diagnostics(layout, window, cx);
4733 self.paint_inline_blame(layout, window, cx);
4734 self.paint_diff_hunk_controls(layout, window, cx);
4735 window.with_element_namespace("crease_trailers", |window| {
4736 for trailer in layout.crease_trailers.iter_mut().flatten() {
4737 trailer.element.paint(window, cx);
4738 }
4739 });
4740 },
4741 )
4742 }
4743
4744 fn paint_highlights(
4745 &mut self,
4746 layout: &mut EditorLayout,
4747 window: &mut Window,
4748 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4749 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4750 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4751 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4752 for (range, color) in &layout.highlighted_ranges {
4753 self.paint_highlighted_range(
4754 range.clone(),
4755 *color,
4756 Pixels::ZERO,
4757 line_end_overshoot,
4758 layout,
4759 window,
4760 );
4761 }
4762
4763 let corner_radius = 0.15 * layout.position_map.line_height;
4764
4765 for (player_color, selections) in &layout.selections {
4766 for selection in selections.iter() {
4767 self.paint_highlighted_range(
4768 selection.range.clone(),
4769 player_color.selection,
4770 corner_radius,
4771 corner_radius * 2.,
4772 layout,
4773 window,
4774 );
4775
4776 if selection.is_local && !selection.range.is_empty() {
4777 invisible_display_ranges.push(selection.range.clone());
4778 }
4779 }
4780 }
4781 invisible_display_ranges
4782 })
4783 }
4784
4785 fn paint_lines(
4786 &mut self,
4787 invisible_display_ranges: &[Range<DisplayPoint>],
4788 layout: &mut EditorLayout,
4789 window: &mut Window,
4790 cx: &mut App,
4791 ) {
4792 let whitespace_setting = self
4793 .editor
4794 .read(cx)
4795 .buffer
4796 .read(cx)
4797 .language_settings(cx)
4798 .show_whitespaces;
4799
4800 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4801 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4802 line_with_invisibles.draw(
4803 layout,
4804 row,
4805 layout.content_origin,
4806 whitespace_setting,
4807 invisible_display_ranges,
4808 window,
4809 cx,
4810 )
4811 }
4812
4813 for line_element in &mut layout.line_elements {
4814 line_element.paint(window, cx);
4815 }
4816 }
4817
4818 fn paint_lines_background(
4819 &mut self,
4820 layout: &mut EditorLayout,
4821 window: &mut Window,
4822 cx: &mut App,
4823 ) {
4824 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4825 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4826 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4827 }
4828 }
4829
4830 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4831 if layout.redacted_ranges.is_empty() {
4832 return;
4833 }
4834
4835 let line_end_overshoot = layout.line_end_overshoot();
4836
4837 // A softer than perfect black
4838 let redaction_color = gpui::rgb(0x0e1111);
4839
4840 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4841 for range in layout.redacted_ranges.iter() {
4842 self.paint_highlighted_range(
4843 range.clone(),
4844 redaction_color.into(),
4845 Pixels::ZERO,
4846 line_end_overshoot,
4847 layout,
4848 window,
4849 );
4850 }
4851 });
4852 }
4853
4854 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4855 for cursor in &mut layout.visible_cursors {
4856 cursor.paint(layout.content_origin, window, cx);
4857 }
4858 }
4859
4860 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4861 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4862
4863 if let Some(scrollbar_layout) = scrollbar_x {
4864 let hitbox = scrollbar_layout.hitbox.clone();
4865 let text_unit_size = scrollbar_layout.text_unit_size;
4866 let visible_range = scrollbar_layout.visible_range.clone();
4867 let thumb_bounds = scrollbar_layout.thumb_bounds();
4868
4869 if scrollbar_layout.visible {
4870 window.paint_layer(hitbox.bounds, |window| {
4871 window.paint_quad(quad(
4872 hitbox.bounds,
4873 Corners::default(),
4874 cx.theme().colors().scrollbar_track_background,
4875 Edges {
4876 top: Pixels::ZERO,
4877 right: Pixels::ZERO,
4878 bottom: Pixels::ZERO,
4879 left: Pixels::ZERO,
4880 },
4881 cx.theme().colors().scrollbar_track_border,
4882 ));
4883
4884 window.paint_quad(quad(
4885 thumb_bounds,
4886 Corners::default(),
4887 cx.theme().colors().scrollbar_thumb_background,
4888 Edges {
4889 top: Pixels::ZERO,
4890 right: Pixels::ZERO,
4891 bottom: Pixels::ZERO,
4892 left: ScrollbarLayout::BORDER_WIDTH,
4893 },
4894 cx.theme().colors().scrollbar_thumb_border,
4895 ));
4896 })
4897 }
4898
4899 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4900
4901 window.on_mouse_event({
4902 let editor = self.editor.clone();
4903
4904 // there may be a way to avoid this clone
4905 let hitbox = hitbox.clone();
4906
4907 let mut mouse_position = window.mouse_position();
4908 move |event: &MouseMoveEvent, phase, window, cx| {
4909 if phase == DispatchPhase::Capture {
4910 return;
4911 }
4912
4913 editor.update(cx, |editor, cx| {
4914 if event.pressed_button == Some(MouseButton::Left)
4915 && editor
4916 .scroll_manager
4917 .is_dragging_scrollbar(Axis::Horizontal)
4918 {
4919 let x = mouse_position.x;
4920 let new_x = event.position.x;
4921 if (hitbox.left()..hitbox.right()).contains(&x) {
4922 let mut position = editor.scroll_position(cx);
4923
4924 position.x += (new_x - x) / text_unit_size;
4925 if position.x < 0.0 {
4926 position.x = 0.0;
4927 }
4928 editor.set_scroll_position(position, window, cx);
4929 }
4930
4931 cx.stop_propagation();
4932 } else {
4933 editor.scroll_manager.set_is_dragging_scrollbar(
4934 Axis::Horizontal,
4935 false,
4936 cx,
4937 );
4938
4939 if hitbox.is_hovered(window) {
4940 editor.scroll_manager.show_scrollbar(window, cx);
4941 }
4942 }
4943 mouse_position = event.position;
4944 })
4945 }
4946 });
4947
4948 if self
4949 .editor
4950 .read(cx)
4951 .scroll_manager
4952 .is_dragging_scrollbar(Axis::Horizontal)
4953 {
4954 window.on_mouse_event({
4955 let editor = self.editor.clone();
4956 move |_: &MouseUpEvent, phase, _, cx| {
4957 if phase == DispatchPhase::Capture {
4958 return;
4959 }
4960
4961 editor.update(cx, |editor, cx| {
4962 editor.scroll_manager.set_is_dragging_scrollbar(
4963 Axis::Horizontal,
4964 false,
4965 cx,
4966 );
4967 cx.stop_propagation();
4968 });
4969 }
4970 });
4971 } else {
4972 window.on_mouse_event({
4973 let editor = self.editor.clone();
4974
4975 move |event: &MouseDownEvent, phase, window, cx| {
4976 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4977 return;
4978 }
4979
4980 editor.update(cx, |editor, cx| {
4981 editor.scroll_manager.set_is_dragging_scrollbar(
4982 Axis::Horizontal,
4983 true,
4984 cx,
4985 );
4986
4987 let x = event.position.x;
4988
4989 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4990 let center_row =
4991 ((x - hitbox.left()) / text_unit_size).round() as u32;
4992 let top_row = center_row.saturating_sub(
4993 (visible_range.end - visible_range.start) as u32 / 2,
4994 );
4995
4996 let mut position = editor.scroll_position(cx);
4997 position.x = top_row as f32;
4998
4999 editor.set_scroll_position(position, window, cx);
5000 } else {
5001 editor.scroll_manager.show_scrollbar(window, cx);
5002 }
5003
5004 cx.stop_propagation();
5005 });
5006 }
5007 });
5008 }
5009 }
5010
5011 if let Some(scrollbar_layout) = scrollbar_y {
5012 let hitbox = scrollbar_layout.hitbox.clone();
5013 let text_unit_size = scrollbar_layout.text_unit_size;
5014 let visible_range = scrollbar_layout.visible_range.clone();
5015 let thumb_bounds = scrollbar_layout.thumb_bounds();
5016
5017 if scrollbar_layout.visible {
5018 window.paint_layer(hitbox.bounds, |window| {
5019 window.paint_quad(quad(
5020 hitbox.bounds,
5021 Corners::default(),
5022 cx.theme().colors().scrollbar_track_background,
5023 Edges {
5024 top: Pixels::ZERO,
5025 right: Pixels::ZERO,
5026 bottom: Pixels::ZERO,
5027 left: ScrollbarLayout::BORDER_WIDTH,
5028 },
5029 cx.theme().colors().scrollbar_track_border,
5030 ));
5031
5032 let fast_markers =
5033 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5034 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5035 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5036
5037 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5038 for marker in markers.iter().chain(&fast_markers) {
5039 let mut marker = marker.clone();
5040 marker.bounds.origin += hitbox.origin;
5041 window.paint_quad(marker);
5042 }
5043
5044 window.paint_quad(quad(
5045 thumb_bounds,
5046 Corners::default(),
5047 cx.theme().colors().scrollbar_thumb_background,
5048 Edges {
5049 top: Pixels::ZERO,
5050 right: Pixels::ZERO,
5051 bottom: Pixels::ZERO,
5052 left: ScrollbarLayout::BORDER_WIDTH,
5053 },
5054 cx.theme().colors().scrollbar_thumb_border,
5055 ));
5056 });
5057 }
5058
5059 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5060
5061 window.on_mouse_event({
5062 let editor = self.editor.clone();
5063
5064 let hitbox = hitbox.clone();
5065
5066 let mut mouse_position = window.mouse_position();
5067 move |event: &MouseMoveEvent, phase, window, cx| {
5068 if phase == DispatchPhase::Capture {
5069 return;
5070 }
5071
5072 editor.update(cx, |editor, cx| {
5073 if event.pressed_button == Some(MouseButton::Left)
5074 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5075 {
5076 let y = mouse_position.y;
5077 let new_y = event.position.y;
5078 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5079 let mut position = editor.scroll_position(cx);
5080 position.y += (new_y - y) / text_unit_size;
5081 if position.y < 0.0 {
5082 position.y = 0.0;
5083 }
5084 editor.set_scroll_position(position, window, cx);
5085 }
5086 } else {
5087 editor.scroll_manager.set_is_dragging_scrollbar(
5088 Axis::Vertical,
5089 false,
5090 cx,
5091 );
5092
5093 if hitbox.is_hovered(window) {
5094 editor.scroll_manager.show_scrollbar(window, cx);
5095 }
5096 }
5097 mouse_position = event.position;
5098 })
5099 }
5100 });
5101
5102 if self
5103 .editor
5104 .read(cx)
5105 .scroll_manager
5106 .is_dragging_scrollbar(Axis::Vertical)
5107 {
5108 window.on_mouse_event({
5109 let editor = self.editor.clone();
5110 move |_: &MouseUpEvent, phase, _, cx| {
5111 if phase == DispatchPhase::Capture {
5112 return;
5113 }
5114
5115 editor.update(cx, |editor, cx| {
5116 editor.scroll_manager.set_is_dragging_scrollbar(
5117 Axis::Vertical,
5118 false,
5119 cx,
5120 );
5121 cx.stop_propagation();
5122 });
5123 }
5124 });
5125 } else {
5126 window.on_mouse_event({
5127 let editor = self.editor.clone();
5128
5129 move |event: &MouseDownEvent, phase, window, cx| {
5130 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5131 return;
5132 }
5133
5134 editor.update(cx, |editor, cx| {
5135 editor.scroll_manager.set_is_dragging_scrollbar(
5136 Axis::Vertical,
5137 true,
5138 cx,
5139 );
5140
5141 let y = event.position.y;
5142 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5143 let center_row =
5144 ((y - hitbox.top()) / text_unit_size).round() as u32;
5145 let top_row = center_row.saturating_sub(
5146 (visible_range.end - visible_range.start) as u32 / 2,
5147 );
5148 let mut position = editor.scroll_position(cx);
5149 position.y = top_row as f32;
5150 editor.set_scroll_position(position, window, cx);
5151 } else {
5152 editor.scroll_manager.show_scrollbar(window, cx);
5153 }
5154
5155 cx.stop_propagation();
5156 });
5157 }
5158 });
5159 }
5160 }
5161 }
5162
5163 fn collect_fast_scrollbar_markers(
5164 &self,
5165 layout: &EditorLayout,
5166 scrollbar_layout: &ScrollbarLayout,
5167 cx: &mut App,
5168 ) -> Vec<PaintQuad> {
5169 const LIMIT: usize = 100;
5170 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5171 return vec![];
5172 }
5173 let cursor_ranges = layout
5174 .cursors
5175 .iter()
5176 .map(|(point, color)| ColoredRange {
5177 start: point.row(),
5178 end: point.row(),
5179 color: *color,
5180 })
5181 .collect_vec();
5182 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5183 }
5184
5185 fn refresh_slow_scrollbar_markers(
5186 &self,
5187 layout: &EditorLayout,
5188 scrollbar_layout: &ScrollbarLayout,
5189 window: &mut Window,
5190 cx: &mut App,
5191 ) {
5192 self.editor.update(cx, |editor, cx| {
5193 if !editor.is_singleton(cx)
5194 || !editor
5195 .scrollbar_marker_state
5196 .should_refresh(scrollbar_layout.hitbox.size)
5197 {
5198 return;
5199 }
5200
5201 let scrollbar_layout = scrollbar_layout.clone();
5202 let background_highlights = editor.background_highlights.clone();
5203 let snapshot = layout.position_map.snapshot.clone();
5204 let theme = cx.theme().clone();
5205 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5206
5207 editor.scrollbar_marker_state.dirty = false;
5208 editor.scrollbar_marker_state.pending_refresh =
5209 Some(cx.spawn_in(window, async move |editor, cx| {
5210 let scrollbar_size = scrollbar_layout.hitbox.size;
5211 let scrollbar_markers = cx
5212 .background_spawn(async move {
5213 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5214 let mut marker_quads = Vec::new();
5215 if scrollbar_settings.git_diff {
5216 let marker_row_ranges =
5217 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5218 let start_display_row =
5219 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5220 .to_display_point(&snapshot.display_snapshot)
5221 .row();
5222 let mut end_display_row =
5223 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5224 .to_display_point(&snapshot.display_snapshot)
5225 .row();
5226 if end_display_row != start_display_row {
5227 end_display_row.0 -= 1;
5228 }
5229 let color = match &hunk.status().kind {
5230 DiffHunkStatusKind::Added => {
5231 theme.colors().version_control_added
5232 }
5233 DiffHunkStatusKind::Modified => {
5234 theme.colors().version_control_modified
5235 }
5236 DiffHunkStatusKind::Deleted => {
5237 theme.colors().version_control_deleted
5238 }
5239 };
5240 ColoredRange {
5241 start: start_display_row,
5242 end: end_display_row,
5243 color,
5244 }
5245 });
5246
5247 marker_quads.extend(
5248 scrollbar_layout
5249 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5250 );
5251 }
5252
5253 for (background_highlight_id, (_, background_ranges)) in
5254 background_highlights.iter()
5255 {
5256 let is_search_highlights = *background_highlight_id
5257 == TypeId::of::<BufferSearchHighlights>();
5258 let is_text_highlights = *background_highlight_id
5259 == TypeId::of::<SelectedTextHighlight>();
5260 let is_symbol_occurrences = *background_highlight_id
5261 == TypeId::of::<DocumentHighlightRead>()
5262 || *background_highlight_id
5263 == TypeId::of::<DocumentHighlightWrite>();
5264 if (is_search_highlights && scrollbar_settings.search_results)
5265 || (is_text_highlights && scrollbar_settings.selected_text)
5266 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5267 {
5268 let mut color = theme.status().info;
5269 if is_symbol_occurrences {
5270 color.fade_out(0.5);
5271 }
5272 let marker_row_ranges = background_ranges.iter().map(|range| {
5273 let display_start = range
5274 .start
5275 .to_display_point(&snapshot.display_snapshot);
5276 let display_end =
5277 range.end.to_display_point(&snapshot.display_snapshot);
5278 ColoredRange {
5279 start: display_start.row(),
5280 end: display_end.row(),
5281 color,
5282 }
5283 });
5284 marker_quads.extend(
5285 scrollbar_layout
5286 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5287 );
5288 }
5289 }
5290
5291 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5292 let diagnostics = snapshot
5293 .buffer_snapshot
5294 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5295 // Don't show diagnostics the user doesn't care about
5296 .filter(|diagnostic| {
5297 match (
5298 scrollbar_settings.diagnostics,
5299 diagnostic.diagnostic.severity,
5300 ) {
5301 (ScrollbarDiagnostics::All, _) => true,
5302 (
5303 ScrollbarDiagnostics::Error,
5304 DiagnosticSeverity::ERROR,
5305 ) => true,
5306 (
5307 ScrollbarDiagnostics::Warning,
5308 DiagnosticSeverity::ERROR
5309 | DiagnosticSeverity::WARNING,
5310 ) => true,
5311 (
5312 ScrollbarDiagnostics::Information,
5313 DiagnosticSeverity::ERROR
5314 | DiagnosticSeverity::WARNING
5315 | DiagnosticSeverity::INFORMATION,
5316 ) => true,
5317 (_, _) => false,
5318 }
5319 })
5320 // We want to sort by severity, in order to paint the most severe diagnostics last.
5321 .sorted_by_key(|diagnostic| {
5322 std::cmp::Reverse(diagnostic.diagnostic.severity)
5323 });
5324
5325 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5326 let start_display = diagnostic
5327 .range
5328 .start
5329 .to_display_point(&snapshot.display_snapshot);
5330 let end_display = diagnostic
5331 .range
5332 .end
5333 .to_display_point(&snapshot.display_snapshot);
5334 let color = match diagnostic.diagnostic.severity {
5335 DiagnosticSeverity::ERROR => theme.status().error,
5336 DiagnosticSeverity::WARNING => theme.status().warning,
5337 DiagnosticSeverity::INFORMATION => theme.status().info,
5338 _ => theme.status().hint,
5339 };
5340 ColoredRange {
5341 start: start_display.row(),
5342 end: end_display.row(),
5343 color,
5344 }
5345 });
5346 marker_quads.extend(
5347 scrollbar_layout
5348 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5349 );
5350 }
5351
5352 Arc::from(marker_quads)
5353 })
5354 .await;
5355
5356 editor.update(cx, |editor, cx| {
5357 editor.scrollbar_marker_state.markers = scrollbar_markers;
5358 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5359 editor.scrollbar_marker_state.pending_refresh = None;
5360 cx.notify();
5361 })?;
5362
5363 Ok(())
5364 }));
5365 });
5366 }
5367
5368 fn paint_highlighted_range(
5369 &self,
5370 range: Range<DisplayPoint>,
5371 color: Hsla,
5372 corner_radius: Pixels,
5373 line_end_overshoot: Pixels,
5374 layout: &EditorLayout,
5375 window: &mut Window,
5376 ) {
5377 let start_row = layout.visible_display_row_range.start;
5378 let end_row = layout.visible_display_row_range.end;
5379 if range.start != range.end {
5380 let row_range = if range.end.column() == 0 {
5381 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5382 } else {
5383 cmp::max(range.start.row(), start_row)
5384 ..cmp::min(range.end.row().next_row(), end_row)
5385 };
5386
5387 let highlighted_range = HighlightedRange {
5388 color,
5389 line_height: layout.position_map.line_height,
5390 corner_radius,
5391 start_y: layout.content_origin.y
5392 + row_range.start.as_f32() * layout.position_map.line_height
5393 - layout.position_map.scroll_pixel_position.y,
5394 lines: row_range
5395 .iter_rows()
5396 .map(|row| {
5397 let line_layout =
5398 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5399 HighlightedRangeLine {
5400 start_x: if row == range.start.row() {
5401 layout.content_origin.x
5402 + line_layout.x_for_index(range.start.column() as usize)
5403 - layout.position_map.scroll_pixel_position.x
5404 } else {
5405 layout.content_origin.x
5406 - layout.position_map.scroll_pixel_position.x
5407 },
5408 end_x: if row == range.end.row() {
5409 layout.content_origin.x
5410 + line_layout.x_for_index(range.end.column() as usize)
5411 - layout.position_map.scroll_pixel_position.x
5412 } else {
5413 layout.content_origin.x + line_layout.width + line_end_overshoot
5414 - layout.position_map.scroll_pixel_position.x
5415 },
5416 }
5417 })
5418 .collect(),
5419 };
5420
5421 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5422 }
5423 }
5424
5425 fn paint_inline_diagnostics(
5426 &mut self,
5427 layout: &mut EditorLayout,
5428 window: &mut Window,
5429 cx: &mut App,
5430 ) {
5431 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5432 inline_diagnostic.1.paint(window, cx);
5433 }
5434 }
5435
5436 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5437 if let Some(mut inline_blame) = layout.inline_blame.take() {
5438 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5439 inline_blame.paint(window, cx);
5440 })
5441 }
5442 }
5443
5444 fn paint_diff_hunk_controls(
5445 &mut self,
5446 layout: &mut EditorLayout,
5447 window: &mut Window,
5448 cx: &mut App,
5449 ) {
5450 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5451 diff_hunk_control.paint(window, cx);
5452 }
5453 }
5454
5455 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5456 for mut block in layout.blocks.drain(..) {
5457 block.element.paint(window, cx);
5458 }
5459 }
5460
5461 fn paint_inline_completion_popover(
5462 &mut self,
5463 layout: &mut EditorLayout,
5464 window: &mut Window,
5465 cx: &mut App,
5466 ) {
5467 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5468 inline_completion_popover.paint(window, cx);
5469 }
5470 }
5471
5472 fn paint_mouse_context_menu(
5473 &mut self,
5474 layout: &mut EditorLayout,
5475 window: &mut Window,
5476 cx: &mut App,
5477 ) {
5478 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5479 mouse_context_menu.paint(window, cx);
5480 }
5481 }
5482
5483 fn paint_scroll_wheel_listener(
5484 &mut self,
5485 layout: &EditorLayout,
5486 window: &mut Window,
5487 cx: &mut App,
5488 ) {
5489 window.on_mouse_event({
5490 let position_map = layout.position_map.clone();
5491 let editor = self.editor.clone();
5492 let hitbox = layout.hitbox.clone();
5493 let mut delta = ScrollDelta::default();
5494
5495 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5496 // accidentally turn off their scrolling.
5497 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5498
5499 move |event: &ScrollWheelEvent, phase, window, cx| {
5500 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5501 delta = delta.coalesce(event.delta);
5502 editor.update(cx, |editor, cx| {
5503 let position_map: &PositionMap = &position_map;
5504
5505 let line_height = position_map.line_height;
5506 let max_glyph_width = position_map.em_width;
5507 let (delta, axis) = match delta {
5508 gpui::ScrollDelta::Pixels(mut pixels) => {
5509 //Trackpad
5510 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5511 (pixels, axis)
5512 }
5513
5514 gpui::ScrollDelta::Lines(lines) => {
5515 //Not trackpad
5516 let pixels =
5517 point(lines.x * max_glyph_width, lines.y * line_height);
5518 (pixels, None)
5519 }
5520 };
5521
5522 let current_scroll_position = position_map.snapshot.scroll_position();
5523 let x = (current_scroll_position.x * max_glyph_width
5524 - (delta.x * scroll_sensitivity))
5525 / max_glyph_width;
5526 let y = (current_scroll_position.y * line_height
5527 - (delta.y * scroll_sensitivity))
5528 / line_height;
5529 let mut scroll_position =
5530 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5531 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5532 if forbid_vertical_scroll {
5533 scroll_position.y = current_scroll_position.y;
5534 }
5535
5536 if scroll_position != current_scroll_position {
5537 editor.scroll(scroll_position, axis, window, cx);
5538 cx.stop_propagation();
5539 } else if y < 0. {
5540 // Due to clamping, we may fail to detect cases of overscroll to the top;
5541 // We want the scroll manager to get an update in such cases and detect the change of direction
5542 // on the next frame.
5543 cx.notify();
5544 }
5545 });
5546 }
5547 }
5548 });
5549 }
5550
5551 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5552 self.paint_scroll_wheel_listener(layout, window, cx);
5553
5554 window.on_mouse_event({
5555 let position_map = layout.position_map.clone();
5556 let editor = self.editor.clone();
5557 let diff_hunk_range =
5558 layout
5559 .display_hunks
5560 .iter()
5561 .find_map(|(hunk, hunk_hitbox)| match hunk {
5562 DisplayDiffHunk::Folded { .. } => None,
5563 DisplayDiffHunk::Unfolded {
5564 multi_buffer_range, ..
5565 } => {
5566 if hunk_hitbox
5567 .as_ref()
5568 .map(|hitbox| hitbox.is_hovered(window))
5569 .unwrap_or(false)
5570 {
5571 Some(multi_buffer_range.clone())
5572 } else {
5573 None
5574 }
5575 }
5576 });
5577 let line_numbers = layout.line_numbers.clone();
5578
5579 move |event: &MouseDownEvent, phase, window, cx| {
5580 if phase == DispatchPhase::Bubble {
5581 match event.button {
5582 MouseButton::Left => editor.update(cx, |editor, cx| {
5583 let pending_mouse_down = editor
5584 .pending_mouse_down
5585 .get_or_insert_with(Default::default)
5586 .clone();
5587
5588 *pending_mouse_down.borrow_mut() = Some(event.clone());
5589
5590 Self::mouse_left_down(
5591 editor,
5592 event,
5593 diff_hunk_range.clone(),
5594 &position_map,
5595 line_numbers.as_ref(),
5596 window,
5597 cx,
5598 );
5599 }),
5600 MouseButton::Right => editor.update(cx, |editor, cx| {
5601 Self::mouse_right_down(editor, event, &position_map, window, cx);
5602 }),
5603 MouseButton::Middle => editor.update(cx, |editor, cx| {
5604 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5605 }),
5606 _ => {}
5607 };
5608 }
5609 }
5610 });
5611
5612 window.on_mouse_event({
5613 let editor = self.editor.clone();
5614 let position_map = layout.position_map.clone();
5615
5616 move |event: &MouseUpEvent, phase, window, cx| {
5617 if phase == DispatchPhase::Bubble {
5618 editor.update(cx, |editor, cx| {
5619 Self::mouse_up(editor, event, &position_map, window, cx)
5620 });
5621 }
5622 }
5623 });
5624
5625 window.on_mouse_event({
5626 let editor = self.editor.clone();
5627 let position_map = layout.position_map.clone();
5628 let mut captured_mouse_down = None;
5629
5630 move |event: &MouseUpEvent, phase, window, cx| match phase {
5631 // Clear the pending mouse down during the capture phase,
5632 // so that it happens even if another event handler stops
5633 // propagation.
5634 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5635 let pending_mouse_down = editor
5636 .pending_mouse_down
5637 .get_or_insert_with(Default::default)
5638 .clone();
5639
5640 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5641 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5642 captured_mouse_down = pending_mouse_down.take();
5643 window.refresh();
5644 }
5645 }),
5646 // Fire click handlers during the bubble phase.
5647 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5648 if let Some(mouse_down) = captured_mouse_down.take() {
5649 let event = ClickEvent {
5650 down: mouse_down,
5651 up: event.clone(),
5652 };
5653 Self::click(editor, &event, &position_map, window, cx);
5654 }
5655 }),
5656 }
5657 });
5658
5659 window.on_mouse_event({
5660 let position_map = layout.position_map.clone();
5661 let editor = self.editor.clone();
5662
5663 move |event: &MouseMoveEvent, phase, window, cx| {
5664 if phase == DispatchPhase::Bubble {
5665 editor.update(cx, |editor, cx| {
5666 if editor.hover_state.focused(window, cx) {
5667 return;
5668 }
5669 if event.pressed_button == Some(MouseButton::Left)
5670 || event.pressed_button == Some(MouseButton::Middle)
5671 {
5672 Self::mouse_dragged(editor, event, &position_map, window, cx)
5673 }
5674
5675 Self::mouse_moved(editor, event, &position_map, window, cx)
5676 });
5677 }
5678 }
5679 });
5680 }
5681
5682 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5683 bounds.top_right().x - self.style.scrollbar_width
5684 }
5685
5686 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5687 let style = &self.style;
5688 let font_size = style.text.font_size.to_pixels(window.rem_size());
5689 let layout = window
5690 .text_system()
5691 .shape_line(
5692 SharedString::from(" ".repeat(column)),
5693 font_size,
5694 &[TextRun {
5695 len: column,
5696 font: style.text.font(),
5697 color: Hsla::default(),
5698 background_color: None,
5699 underline: None,
5700 strikethrough: None,
5701 }],
5702 )
5703 .unwrap();
5704
5705 layout.width
5706 }
5707
5708 fn max_line_number_width(
5709 &self,
5710 snapshot: &EditorSnapshot,
5711 window: &mut Window,
5712 cx: &mut App,
5713 ) -> Pixels {
5714 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5715 self.column_pixels(digit_count as usize, window, cx)
5716 }
5717
5718 fn shape_line_number(
5719 &self,
5720 text: SharedString,
5721 color: Hsla,
5722 window: &mut Window,
5723 ) -> anyhow::Result<ShapedLine> {
5724 let run = TextRun {
5725 len: text.len(),
5726 font: self.style.text.font(),
5727 color,
5728 background_color: None,
5729 underline: None,
5730 strikethrough: None,
5731 };
5732 window.text_system().shape_line(
5733 text,
5734 self.style.text.font_size.to_pixels(window.rem_size()),
5735 &[run],
5736 )
5737 }
5738
5739 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5740 let unstaged = status.has_secondary_hunk();
5741 let unstaged_hollow = ProjectSettings::get_global(cx)
5742 .git
5743 .hunk_style
5744 .map_or(false, |style| {
5745 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5746 });
5747
5748 unstaged == unstaged_hollow
5749 }
5750}
5751
5752fn header_jump_data(
5753 snapshot: &EditorSnapshot,
5754 block_row_start: DisplayRow,
5755 height: u32,
5756 for_excerpt: &ExcerptInfo,
5757) -> JumpData {
5758 let range = &for_excerpt.range;
5759 let buffer = &for_excerpt.buffer;
5760 let jump_anchor = range
5761 .primary
5762 .as_ref()
5763 .map_or(range.context.start, |primary| primary.start);
5764
5765 let excerpt_start = range.context.start;
5766 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5767 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5768 0
5769 } else {
5770 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5771 jump_position.row.saturating_sub(excerpt_start_point.row)
5772 };
5773
5774 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5775 .saturating_sub(
5776 snapshot
5777 .scroll_anchor
5778 .scroll_position(&snapshot.display_snapshot)
5779 .y as u32,
5780 );
5781
5782 JumpData::MultiBufferPoint {
5783 excerpt_id: for_excerpt.id,
5784 anchor: jump_anchor,
5785 position: jump_position,
5786 line_offset_from_top,
5787 }
5788}
5789
5790pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5791
5792impl AcceptEditPredictionBinding {
5793 pub fn keystroke(&self) -> Option<&Keystroke> {
5794 if let Some(binding) = self.0.as_ref() {
5795 match &binding.keystrokes() {
5796 [keystroke] => Some(keystroke),
5797 _ => None,
5798 }
5799 } else {
5800 None
5801 }
5802 }
5803}
5804
5805fn prepaint_gutter_button(
5806 button: IconButton,
5807 row: DisplayRow,
5808 line_height: Pixels,
5809 gutter_dimensions: &GutterDimensions,
5810 scroll_pixel_position: gpui::Point<Pixels>,
5811 gutter_hitbox: &Hitbox,
5812 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5813 window: &mut Window,
5814 cx: &mut App,
5815) -> AnyElement {
5816 let mut button = button.into_any_element();
5817
5818 let available_space = size(
5819 AvailableSpace::MinContent,
5820 AvailableSpace::Definite(line_height),
5821 );
5822 let indicator_size = button.layout_as_root(available_space, window, cx);
5823
5824 let blame_width = gutter_dimensions.git_blame_entries_width;
5825 let gutter_width = display_hunks
5826 .binary_search_by(|(hunk, _)| match hunk {
5827 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5828 DisplayDiffHunk::Unfolded {
5829 display_row_range, ..
5830 } => {
5831 if display_row_range.end <= row {
5832 Ordering::Less
5833 } else if display_row_range.start > row {
5834 Ordering::Greater
5835 } else {
5836 Ordering::Equal
5837 }
5838 }
5839 })
5840 .ok()
5841 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5842 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5843
5844 let mut x = left_offset;
5845 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5846 - indicator_size.width
5847 - left_offset;
5848 x += available_width / 2.;
5849
5850 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5851 y += (line_height - indicator_size.height) / 2.;
5852
5853 button.prepaint_as_root(
5854 gutter_hitbox.origin + point(x, y),
5855 available_space,
5856 window,
5857 cx,
5858 );
5859 button
5860}
5861
5862fn render_inline_blame_entry(
5863 editor: Entity<Editor>,
5864 blame: &gpui::Entity<GitBlame>,
5865 blame_entry: BlameEntry,
5866 style: &EditorStyle,
5867 cx: &mut App,
5868) -> AnyElement {
5869 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5870
5871 let author = blame_entry.author.as_deref().unwrap_or_default();
5872 let summary_enabled = ProjectSettings::get_global(cx)
5873 .git
5874 .show_inline_commit_summary();
5875
5876 let text = match blame_entry.summary.as_ref() {
5877 Some(summary) if summary_enabled => {
5878 format!("{}, {} - {}", author, relative_timestamp, summary)
5879 }
5880 _ => format!("{}, {}", author, relative_timestamp),
5881 };
5882 let blame = blame.clone();
5883 let blame_entry = blame_entry.clone();
5884
5885 h_flex()
5886 .id("inline-blame")
5887 .w_full()
5888 .font_family(style.text.font().family)
5889 .text_color(cx.theme().status().hint)
5890 .line_height(style.text.line_height)
5891 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5892 .child(text)
5893 .gap_2()
5894 .hoverable_tooltip(move |window, cx| {
5895 let details = blame.read(cx).details_for_entry(&blame_entry);
5896 let tooltip =
5897 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5898 editor.update(cx, |editor, _| {
5899 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5900 });
5901 tooltip.into()
5902 })
5903 .into_any()
5904}
5905
5906fn render_blame_entry(
5907 ix: usize,
5908 blame: &gpui::Entity<GitBlame>,
5909 blame_entry: BlameEntry,
5910 style: &EditorStyle,
5911 last_used_color: &mut Option<(PlayerColor, Oid)>,
5912 editor: Entity<Editor>,
5913 cx: &mut App,
5914) -> AnyElement {
5915 let mut sha_color = cx
5916 .theme()
5917 .players()
5918 .color_for_participant(blame_entry.sha.into());
5919 // If the last color we used is the same as the one we get for this line, but
5920 // the commit SHAs are different, then we try again to get a different color.
5921 match *last_used_color {
5922 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5923 let index: u32 = blame_entry.sha.into();
5924 sha_color = cx.theme().players().color_for_participant(index + 1);
5925 }
5926 _ => {}
5927 };
5928 last_used_color.replace((sha_color, blame_entry.sha));
5929
5930 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5931
5932 let short_commit_id = blame_entry.sha.display_short();
5933
5934 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5935 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5936 let details = blame.read(cx).details_for_entry(&blame_entry);
5937
5938 h_flex()
5939 .w_full()
5940 .justify_between()
5941 .font_family(style.text.font().family)
5942 .line_height(style.text.line_height)
5943 .id(("blame", ix))
5944 .text_color(cx.theme().status().hint)
5945 .pr_2()
5946 .gap_2()
5947 .child(
5948 h_flex()
5949 .items_center()
5950 .gap_2()
5951 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5952 .child(name),
5953 )
5954 .child(relative_timestamp)
5955 .on_mouse_down(MouseButton::Right, {
5956 let blame_entry = blame_entry.clone();
5957 let details = details.clone();
5958 move |event, window, cx| {
5959 deploy_blame_entry_context_menu(
5960 &blame_entry,
5961 details.as_ref(),
5962 editor.clone(),
5963 event.position,
5964 window,
5965 cx,
5966 );
5967 }
5968 })
5969 .hover(|style| style.bg(cx.theme().colors().element_hover))
5970 .when_some(
5971 details
5972 .as_ref()
5973 .and_then(|details| details.permalink.clone()),
5974 |this, url| {
5975 this.cursor_pointer().on_click(move |_, _, cx| {
5976 cx.stop_propagation();
5977 cx.open_url(url.as_str())
5978 })
5979 },
5980 )
5981 .hoverable_tooltip(move |window, cx| {
5982 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5983 .into()
5984 })
5985 .into_any()
5986}
5987
5988fn deploy_blame_entry_context_menu(
5989 blame_entry: &BlameEntry,
5990 details: Option<&ParsedCommitMessage>,
5991 editor: Entity<Editor>,
5992 position: gpui::Point<Pixels>,
5993 window: &mut Window,
5994 cx: &mut App,
5995) {
5996 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5997 let sha = format!("{}", blame_entry.sha);
5998 menu.on_blur_subscription(Subscription::new(|| {}))
5999 .entry("Copy commit SHA", None, move |_, cx| {
6000 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6001 })
6002 .when_some(
6003 details.and_then(|details| details.permalink.clone()),
6004 |this, url| {
6005 this.entry("Open permalink", None, move |_, cx| {
6006 cx.open_url(url.as_str())
6007 })
6008 },
6009 )
6010 });
6011
6012 editor.update(cx, move |editor, cx| {
6013 editor.mouse_context_menu = Some(MouseContextMenu::new(
6014 MenuPosition::PinnedToScreen(position),
6015 context_menu,
6016 window,
6017 cx,
6018 ));
6019 cx.notify();
6020 });
6021}
6022
6023#[derive(Debug)]
6024pub(crate) struct LineWithInvisibles {
6025 fragments: SmallVec<[LineFragment; 1]>,
6026 invisibles: Vec<Invisible>,
6027 len: usize,
6028 pub(crate) width: Pixels,
6029 font_size: Pixels,
6030}
6031
6032#[allow(clippy::large_enum_variant)]
6033enum LineFragment {
6034 Text(ShapedLine),
6035 Element {
6036 element: Option<AnyElement>,
6037 size: Size<Pixels>,
6038 len: usize,
6039 },
6040}
6041
6042impl fmt::Debug for LineFragment {
6043 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6044 match self {
6045 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6046 LineFragment::Element { size, len, .. } => f
6047 .debug_struct("Element")
6048 .field("size", size)
6049 .field("len", len)
6050 .finish(),
6051 }
6052 }
6053}
6054
6055impl LineWithInvisibles {
6056 fn from_chunks<'a>(
6057 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6058 editor_style: &EditorStyle,
6059 max_line_len: usize,
6060 max_line_count: usize,
6061 editor_mode: EditorMode,
6062 text_width: Pixels,
6063 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6064 window: &mut Window,
6065 cx: &mut App,
6066 ) -> Vec<Self> {
6067 let text_style = &editor_style.text;
6068 let mut layouts = Vec::with_capacity(max_line_count);
6069 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6070 let mut line = String::new();
6071 let mut invisibles = Vec::new();
6072 let mut width = Pixels::ZERO;
6073 let mut len = 0;
6074 let mut styles = Vec::new();
6075 let mut non_whitespace_added = false;
6076 let mut row = 0;
6077 let mut line_exceeded_max_len = false;
6078 let font_size = text_style.font_size.to_pixels(window.rem_size());
6079
6080 let ellipsis = SharedString::from("⋯");
6081
6082 for highlighted_chunk in chunks.chain([HighlightedChunk {
6083 text: "\n",
6084 style: None,
6085 is_tab: false,
6086 replacement: None,
6087 }]) {
6088 if let Some(replacement) = highlighted_chunk.replacement {
6089 if !line.is_empty() {
6090 let shaped_line = window
6091 .text_system()
6092 .shape_line(line.clone().into(), font_size, &styles)
6093 .unwrap();
6094 width += shaped_line.width;
6095 len += shaped_line.len;
6096 fragments.push(LineFragment::Text(shaped_line));
6097 line.clear();
6098 styles.clear();
6099 }
6100
6101 match replacement {
6102 ChunkReplacement::Renderer(renderer) => {
6103 let available_width = if renderer.constrain_width {
6104 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6105 ellipsis.clone()
6106 } else {
6107 SharedString::from(Arc::from(highlighted_chunk.text))
6108 };
6109 let shaped_line = window
6110 .text_system()
6111 .shape_line(
6112 chunk,
6113 font_size,
6114 &[text_style.to_run(highlighted_chunk.text.len())],
6115 )
6116 .unwrap();
6117 AvailableSpace::Definite(shaped_line.width)
6118 } else {
6119 AvailableSpace::MinContent
6120 };
6121
6122 let mut element = (renderer.render)(&mut ChunkRendererContext {
6123 context: cx,
6124 window,
6125 max_width: text_width,
6126 });
6127 let line_height = text_style.line_height_in_pixels(window.rem_size());
6128 let size = element.layout_as_root(
6129 size(available_width, AvailableSpace::Definite(line_height)),
6130 window,
6131 cx,
6132 );
6133
6134 width += size.width;
6135 len += highlighted_chunk.text.len();
6136 fragments.push(LineFragment::Element {
6137 element: Some(element),
6138 size,
6139 len: highlighted_chunk.text.len(),
6140 });
6141 }
6142 ChunkReplacement::Str(x) => {
6143 let text_style = if let Some(style) = highlighted_chunk.style {
6144 Cow::Owned(text_style.clone().highlight(style))
6145 } else {
6146 Cow::Borrowed(text_style)
6147 };
6148
6149 let run = TextRun {
6150 len: x.len(),
6151 font: text_style.font(),
6152 color: text_style.color,
6153 background_color: text_style.background_color,
6154 underline: text_style.underline,
6155 strikethrough: text_style.strikethrough,
6156 };
6157 let line_layout = window
6158 .text_system()
6159 .shape_line(x, font_size, &[run])
6160 .unwrap()
6161 .with_len(highlighted_chunk.text.len());
6162
6163 width += line_layout.width;
6164 len += highlighted_chunk.text.len();
6165 fragments.push(LineFragment::Text(line_layout))
6166 }
6167 }
6168 } else {
6169 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6170 if ix > 0 {
6171 let shaped_line = window
6172 .text_system()
6173 .shape_line(line.clone().into(), font_size, &styles)
6174 .unwrap();
6175 width += shaped_line.width;
6176 len += shaped_line.len;
6177 fragments.push(LineFragment::Text(shaped_line));
6178 layouts.push(Self {
6179 width: mem::take(&mut width),
6180 len: mem::take(&mut len),
6181 fragments: mem::take(&mut fragments),
6182 invisibles: std::mem::take(&mut invisibles),
6183 font_size,
6184 });
6185
6186 line.clear();
6187 styles.clear();
6188 row += 1;
6189 line_exceeded_max_len = false;
6190 non_whitespace_added = false;
6191 if row == max_line_count {
6192 return layouts;
6193 }
6194 }
6195
6196 if !line_chunk.is_empty() && !line_exceeded_max_len {
6197 let text_style = if let Some(style) = highlighted_chunk.style {
6198 Cow::Owned(text_style.clone().highlight(style))
6199 } else {
6200 Cow::Borrowed(text_style)
6201 };
6202
6203 if line.len() + line_chunk.len() > max_line_len {
6204 let mut chunk_len = max_line_len - line.len();
6205 while !line_chunk.is_char_boundary(chunk_len) {
6206 chunk_len -= 1;
6207 }
6208 line_chunk = &line_chunk[..chunk_len];
6209 line_exceeded_max_len = true;
6210 }
6211
6212 styles.push(TextRun {
6213 len: line_chunk.len(),
6214 font: text_style.font(),
6215 color: text_style.color,
6216 background_color: text_style.background_color,
6217 underline: text_style.underline,
6218 strikethrough: text_style.strikethrough,
6219 });
6220
6221 if editor_mode == EditorMode::Full {
6222 // Line wrap pads its contents with fake whitespaces,
6223 // avoid printing them
6224 let is_soft_wrapped = is_row_soft_wrapped(row);
6225 if highlighted_chunk.is_tab {
6226 if non_whitespace_added || !is_soft_wrapped {
6227 invisibles.push(Invisible::Tab {
6228 line_start_offset: line.len(),
6229 line_end_offset: line.len() + line_chunk.len(),
6230 });
6231 }
6232 } else {
6233 invisibles.extend(line_chunk.char_indices().filter_map(
6234 |(index, c)| {
6235 let is_whitespace = c.is_whitespace();
6236 non_whitespace_added |= !is_whitespace;
6237 if is_whitespace
6238 && (non_whitespace_added || !is_soft_wrapped)
6239 {
6240 Some(Invisible::Whitespace {
6241 line_offset: line.len() + index,
6242 })
6243 } else {
6244 None
6245 }
6246 },
6247 ))
6248 }
6249 }
6250
6251 line.push_str(line_chunk);
6252 }
6253 }
6254 }
6255 }
6256
6257 layouts
6258 }
6259
6260 fn prepaint(
6261 &mut self,
6262 line_height: Pixels,
6263 scroll_pixel_position: gpui::Point<Pixels>,
6264 row: DisplayRow,
6265 content_origin: gpui::Point<Pixels>,
6266 line_elements: &mut SmallVec<[AnyElement; 1]>,
6267 window: &mut Window,
6268 cx: &mut App,
6269 ) {
6270 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6271 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6272 for fragment in &mut self.fragments {
6273 match fragment {
6274 LineFragment::Text(line) => {
6275 fragment_origin.x += line.width;
6276 }
6277 LineFragment::Element { element, size, .. } => {
6278 let mut element = element
6279 .take()
6280 .expect("you can't prepaint LineWithInvisibles twice");
6281
6282 // Center the element vertically within the line.
6283 let mut element_origin = fragment_origin;
6284 element_origin.y += (line_height - size.height) / 2.;
6285 element.prepaint_at(element_origin, window, cx);
6286 line_elements.push(element);
6287
6288 fragment_origin.x += size.width;
6289 }
6290 }
6291 }
6292 }
6293
6294 fn draw(
6295 &self,
6296 layout: &EditorLayout,
6297 row: DisplayRow,
6298 content_origin: gpui::Point<Pixels>,
6299 whitespace_setting: ShowWhitespaceSetting,
6300 selection_ranges: &[Range<DisplayPoint>],
6301 window: &mut Window,
6302 cx: &mut App,
6303 ) {
6304 let line_height = layout.position_map.line_height;
6305 let line_y = line_height
6306 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6307
6308 let mut fragment_origin =
6309 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6310
6311 for fragment in &self.fragments {
6312 match fragment {
6313 LineFragment::Text(line) => {
6314 line.paint(fragment_origin, line_height, window, cx)
6315 .log_err();
6316 fragment_origin.x += line.width;
6317 }
6318 LineFragment::Element { size, .. } => {
6319 fragment_origin.x += size.width;
6320 }
6321 }
6322 }
6323
6324 self.draw_invisibles(
6325 selection_ranges,
6326 layout,
6327 content_origin,
6328 line_y,
6329 row,
6330 line_height,
6331 whitespace_setting,
6332 window,
6333 cx,
6334 );
6335 }
6336
6337 fn draw_background(
6338 &self,
6339 layout: &EditorLayout,
6340 row: DisplayRow,
6341 content_origin: gpui::Point<Pixels>,
6342 window: &mut Window,
6343 cx: &mut App,
6344 ) {
6345 let line_height = layout.position_map.line_height;
6346 let line_y = line_height
6347 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6348
6349 let mut fragment_origin =
6350 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6351
6352 for fragment in &self.fragments {
6353 match fragment {
6354 LineFragment::Text(line) => {
6355 line.paint_background(fragment_origin, line_height, window, cx)
6356 .log_err();
6357 fragment_origin.x += line.width;
6358 }
6359 LineFragment::Element { size, .. } => {
6360 fragment_origin.x += size.width;
6361 }
6362 }
6363 }
6364 }
6365
6366 fn draw_invisibles(
6367 &self,
6368 selection_ranges: &[Range<DisplayPoint>],
6369 layout: &EditorLayout,
6370 content_origin: gpui::Point<Pixels>,
6371 line_y: Pixels,
6372 row: DisplayRow,
6373 line_height: Pixels,
6374 whitespace_setting: ShowWhitespaceSetting,
6375 window: &mut Window,
6376 cx: &mut App,
6377 ) {
6378 let extract_whitespace_info = |invisible: &Invisible| {
6379 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6380 Invisible::Tab {
6381 line_start_offset,
6382 line_end_offset,
6383 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6384 Invisible::Whitespace { line_offset } => {
6385 (*line_offset, line_offset + 1, &layout.space_invisible)
6386 }
6387 };
6388
6389 let x_offset = self.x_for_index(token_offset);
6390 let invisible_offset =
6391 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6392 let origin = content_origin
6393 + gpui::point(
6394 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6395 line_y,
6396 );
6397
6398 (
6399 [token_offset, token_end_offset],
6400 Box::new(move |window: &mut Window, cx: &mut App| {
6401 invisible_symbol
6402 .paint(origin, line_height, window, cx)
6403 .log_err();
6404 }),
6405 )
6406 };
6407
6408 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6409 match whitespace_setting {
6410 ShowWhitespaceSetting::None => (),
6411 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6412 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6413 let invisible_point = DisplayPoint::new(row, start as u32);
6414 if !selection_ranges
6415 .iter()
6416 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6417 {
6418 return;
6419 }
6420
6421 paint(window, cx);
6422 }),
6423
6424 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6425 // - It is a tab
6426 // - It is adjacent to an edge (start or end)
6427 // - It is adjacent to a whitespace (left or right)
6428 ShowWhitespaceSetting::Boundary => {
6429 // 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
6430 // the above cases.
6431 // Note: We zip in the original `invisibles` to check for tab equality
6432 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6433 for (([start, end], paint), invisible) in
6434 invisible_iter.zip_eq(self.invisibles.iter())
6435 {
6436 let should_render = match (&last_seen, invisible) {
6437 (_, Invisible::Tab { .. }) => true,
6438 (Some((_, last_end, _)), _) => *last_end == start,
6439 _ => false,
6440 };
6441
6442 if should_render || start == 0 || end == self.len {
6443 paint(window, cx);
6444
6445 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6446 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6447 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6448 // Note that we need to make sure that the last one is actually adjacent
6449 if !should_render_last && last_end == start {
6450 paint_last(window, cx);
6451 }
6452 }
6453 }
6454
6455 // Manually render anything within a selection
6456 let invisible_point = DisplayPoint::new(row, start as u32);
6457 if selection_ranges.iter().any(|region| {
6458 region.start <= invisible_point && invisible_point < region.end
6459 }) {
6460 paint(window, cx);
6461 }
6462
6463 last_seen = Some((should_render, end, paint));
6464 }
6465 }
6466 }
6467 }
6468
6469 pub fn x_for_index(&self, index: usize) -> Pixels {
6470 let mut fragment_start_x = Pixels::ZERO;
6471 let mut fragment_start_index = 0;
6472
6473 for fragment in &self.fragments {
6474 match fragment {
6475 LineFragment::Text(shaped_line) => {
6476 let fragment_end_index = fragment_start_index + shaped_line.len;
6477 if index < fragment_end_index {
6478 return fragment_start_x
6479 + shaped_line.x_for_index(index - fragment_start_index);
6480 }
6481 fragment_start_x += shaped_line.width;
6482 fragment_start_index = fragment_end_index;
6483 }
6484 LineFragment::Element { len, size, .. } => {
6485 let fragment_end_index = fragment_start_index + len;
6486 if index < fragment_end_index {
6487 return fragment_start_x;
6488 }
6489 fragment_start_x += size.width;
6490 fragment_start_index = fragment_end_index;
6491 }
6492 }
6493 }
6494
6495 fragment_start_x
6496 }
6497
6498 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6499 let mut fragment_start_x = Pixels::ZERO;
6500 let mut fragment_start_index = 0;
6501
6502 for fragment in &self.fragments {
6503 match fragment {
6504 LineFragment::Text(shaped_line) => {
6505 let fragment_end_x = fragment_start_x + shaped_line.width;
6506 if x < fragment_end_x {
6507 return Some(
6508 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6509 );
6510 }
6511 fragment_start_x = fragment_end_x;
6512 fragment_start_index += shaped_line.len;
6513 }
6514 LineFragment::Element { len, size, .. } => {
6515 let fragment_end_x = fragment_start_x + size.width;
6516 if x < fragment_end_x {
6517 return Some(fragment_start_index);
6518 }
6519 fragment_start_index += len;
6520 fragment_start_x = fragment_end_x;
6521 }
6522 }
6523 }
6524
6525 None
6526 }
6527
6528 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6529 let mut fragment_start_index = 0;
6530
6531 for fragment in &self.fragments {
6532 match fragment {
6533 LineFragment::Text(shaped_line) => {
6534 let fragment_end_index = fragment_start_index + shaped_line.len;
6535 if index < fragment_end_index {
6536 return shaped_line.font_id_for_index(index - fragment_start_index);
6537 }
6538 fragment_start_index = fragment_end_index;
6539 }
6540 LineFragment::Element { len, .. } => {
6541 let fragment_end_index = fragment_start_index + len;
6542 if index < fragment_end_index {
6543 return None;
6544 }
6545 fragment_start_index = fragment_end_index;
6546 }
6547 }
6548 }
6549
6550 None
6551 }
6552}
6553
6554#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6555enum Invisible {
6556 /// A tab character
6557 ///
6558 /// A tab character is internally represented by spaces (configured by the user's tab width)
6559 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6560 /// adjacency checks.
6561 Tab {
6562 line_start_offset: usize,
6563 line_end_offset: usize,
6564 },
6565 Whitespace {
6566 line_offset: usize,
6567 },
6568}
6569
6570impl EditorElement {
6571 /// Returns the rem size to use when rendering the [`EditorElement`].
6572 ///
6573 /// This allows UI elements to scale based on the `buffer_font_size`.
6574 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6575 match self.editor.read(cx).mode {
6576 EditorMode::Full => {
6577 let buffer_font_size = self.style.text.font_size;
6578 match buffer_font_size {
6579 AbsoluteLength::Pixels(pixels) => {
6580 let rem_size_scale = {
6581 // Our default UI font size is 14px on a 16px base scale.
6582 // This means the default UI font size is 0.875rems.
6583 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6584
6585 // We then determine the delta between a single rem and the default font
6586 // size scale.
6587 let default_font_size_delta = 1. - default_font_size_scale;
6588
6589 // Finally, we add this delta to 1rem to get the scale factor that
6590 // should be used to scale up the UI.
6591 1. + default_font_size_delta
6592 };
6593
6594 Some(pixels * rem_size_scale)
6595 }
6596 AbsoluteLength::Rems(rems) => {
6597 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6598 }
6599 }
6600 }
6601 // We currently use single-line and auto-height editors in UI contexts,
6602 // so we don't want to scale everything with the buffer font size, as it
6603 // ends up looking off.
6604 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6605 }
6606 }
6607}
6608
6609impl Element for EditorElement {
6610 type RequestLayoutState = ();
6611 type PrepaintState = EditorLayout;
6612
6613 fn id(&self) -> Option<ElementId> {
6614 None
6615 }
6616
6617 fn request_layout(
6618 &mut self,
6619 _: Option<&GlobalElementId>,
6620 window: &mut Window,
6621 cx: &mut App,
6622 ) -> (gpui::LayoutId, ()) {
6623 let rem_size = self.rem_size(cx);
6624 window.with_rem_size(rem_size, |window| {
6625 self.editor.update(cx, |editor, cx| {
6626 editor.set_style(self.style.clone(), window, cx);
6627
6628 let layout_id = match editor.mode {
6629 EditorMode::SingleLine { auto_width } => {
6630 let rem_size = window.rem_size();
6631
6632 let height = self.style.text.line_height_in_pixels(rem_size);
6633 if auto_width {
6634 let editor_handle = cx.entity().clone();
6635 let style = self.style.clone();
6636 window.request_measured_layout(
6637 Style::default(),
6638 move |_, _, window, cx| {
6639 let editor_snapshot = editor_handle
6640 .update(cx, |editor, cx| editor.snapshot(window, cx));
6641 let line = Self::layout_lines(
6642 DisplayRow(0)..DisplayRow(1),
6643 &editor_snapshot,
6644 &style,
6645 px(f32::MAX),
6646 |_| false, // Single lines never soft wrap
6647 window,
6648 cx,
6649 )
6650 .pop()
6651 .unwrap();
6652
6653 let font_id =
6654 window.text_system().resolve_font(&style.text.font());
6655 let font_size =
6656 style.text.font_size.to_pixels(window.rem_size());
6657 let em_width =
6658 window.text_system().em_width(font_id, font_size).unwrap();
6659
6660 size(line.width + em_width, height)
6661 },
6662 )
6663 } else {
6664 let mut style = Style::default();
6665 style.size.height = height.into();
6666 style.size.width = relative(1.).into();
6667 window.request_layout(style, None, cx)
6668 }
6669 }
6670 EditorMode::AutoHeight { max_lines } => {
6671 let editor_handle = cx.entity().clone();
6672 let max_line_number_width =
6673 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6674 window.request_measured_layout(
6675 Style::default(),
6676 move |known_dimensions, available_space, window, cx| {
6677 editor_handle
6678 .update(cx, |editor, cx| {
6679 compute_auto_height_layout(
6680 editor,
6681 max_lines,
6682 max_line_number_width,
6683 known_dimensions,
6684 available_space.width,
6685 window,
6686 cx,
6687 )
6688 })
6689 .unwrap_or_default()
6690 },
6691 )
6692 }
6693 EditorMode::Full => {
6694 let mut style = Style::default();
6695 style.size.width = relative(1.).into();
6696 style.size.height = relative(1.).into();
6697 window.request_layout(style, None, cx)
6698 }
6699 };
6700
6701 (layout_id, ())
6702 })
6703 })
6704 }
6705
6706 fn prepaint(
6707 &mut self,
6708 _: Option<&GlobalElementId>,
6709 bounds: Bounds<Pixels>,
6710 _: &mut Self::RequestLayoutState,
6711 window: &mut Window,
6712 cx: &mut App,
6713 ) -> Self::PrepaintState {
6714 let text_style = TextStyleRefinement {
6715 font_size: Some(self.style.text.font_size),
6716 line_height: Some(self.style.text.line_height),
6717 ..Default::default()
6718 };
6719 let focus_handle = self.editor.focus_handle(cx);
6720 window.set_view_id(self.editor.entity_id());
6721 window.set_focus_handle(&focus_handle, cx);
6722
6723 let rem_size = self.rem_size(cx);
6724 window.with_rem_size(rem_size, |window| {
6725 window.with_text_style(Some(text_style), |window| {
6726 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6727 let mut snapshot = self
6728 .editor
6729 .update(cx, |editor, cx| editor.snapshot(window, cx));
6730 let style = self.style.clone();
6731
6732 let font_id = window.text_system().resolve_font(&style.text.font());
6733 let font_size = style.text.font_size.to_pixels(window.rem_size());
6734 let line_height = style.text.line_height_in_pixels(window.rem_size());
6735 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6736 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6737
6738 let letter_size = size(em_width, line_height);
6739
6740 let gutter_dimensions = snapshot
6741 .gutter_dimensions(
6742 font_id,
6743 font_size,
6744 self.max_line_number_width(&snapshot, window, cx),
6745 cx,
6746 )
6747 .unwrap_or_default();
6748 let text_width = bounds.size.width - gutter_dimensions.width;
6749
6750 let editor_width =
6751 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6752
6753 snapshot = self.editor.update(cx, |editor, cx| {
6754 editor.last_bounds = Some(bounds);
6755 editor.gutter_dimensions = gutter_dimensions;
6756 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6757
6758 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6759 snapshot
6760 } else {
6761 let wrap_width = match editor.soft_wrap_mode(cx) {
6762 SoftWrap::GitDiff => None,
6763 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6764 SoftWrap::EditorWidth => Some(editor_width),
6765 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6766 SoftWrap::Bounded(column) => {
6767 Some(editor_width.min(column as f32 * em_advance))
6768 }
6769 };
6770
6771 if editor.set_wrap_width(wrap_width, cx) {
6772 editor.snapshot(window, cx)
6773 } else {
6774 snapshot
6775 }
6776 }
6777 });
6778
6779 let wrap_guides = self
6780 .editor
6781 .read(cx)
6782 .wrap_guides(cx)
6783 .iter()
6784 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6785 .collect::<SmallVec<[_; 2]>>();
6786
6787 let hitbox = window.insert_hitbox(bounds, false);
6788 let gutter_hitbox =
6789 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6790 let text_hitbox = window.insert_hitbox(
6791 Bounds {
6792 origin: gutter_hitbox.top_right(),
6793 size: size(text_width, bounds.size.height),
6794 },
6795 false,
6796 );
6797 // Offset the content_bounds from the text_bounds by the gutter margin (which
6798 // is roughly half a character wide) to make hit testing work more like how we want.
6799 let content_origin =
6800 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6801
6802 let scrollbar_bounds =
6803 Bounds::from_corners(content_origin, bounds.bottom_right());
6804
6805 let height_in_lines = scrollbar_bounds.size.height / line_height;
6806
6807 // NOTE: The max row number in the current file, minus one
6808 let max_row = snapshot.max_point().row().as_f32();
6809
6810 // NOTE: The max scroll position for the top of the window
6811 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6812 (max_row - height_in_lines + 1.).max(0.)
6813 } else {
6814 let settings = EditorSettings::get_global(cx);
6815 match settings.scroll_beyond_last_line {
6816 ScrollBeyondLastLine::OnePage => max_row,
6817 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6818 ScrollBeyondLastLine::VerticalScrollMargin => {
6819 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6820 .max(0.)
6821 }
6822 }
6823 };
6824
6825 // TODO: Autoscrolling for both axes
6826 let mut autoscroll_request = None;
6827 let mut autoscroll_containing_element = false;
6828 let mut autoscroll_horizontally = false;
6829 self.editor.update(cx, |editor, cx| {
6830 autoscroll_request = editor.autoscroll_request();
6831 autoscroll_containing_element =
6832 autoscroll_request.is_some() || editor.has_pending_selection();
6833 // TODO: Is this horizontal or vertical?!
6834 autoscroll_horizontally = editor.autoscroll_vertically(
6835 bounds,
6836 line_height,
6837 max_scroll_top,
6838 window,
6839 cx,
6840 );
6841 snapshot = editor.snapshot(window, cx);
6842 });
6843
6844 let mut scroll_position = snapshot.scroll_position();
6845 // The scroll position is a fractional point, the whole number of which represents
6846 // the top of the window in terms of display rows.
6847 let start_row = DisplayRow(scroll_position.y as u32);
6848 let max_row = snapshot.max_point().row();
6849 let end_row = cmp::min(
6850 (scroll_position.y + height_in_lines).ceil() as u32,
6851 max_row.next_row().0,
6852 );
6853 let end_row = DisplayRow(end_row);
6854
6855 let row_infos = snapshot
6856 .row_infos(start_row)
6857 .take((start_row..end_row).len())
6858 .collect::<Vec<RowInfo>>();
6859 let is_row_soft_wrapped = |row: usize| {
6860 row_infos
6861 .get(row)
6862 .map_or(true, |info| info.buffer_row.is_none())
6863 };
6864
6865 let start_anchor = if start_row == Default::default() {
6866 Anchor::min()
6867 } else {
6868 snapshot.buffer_snapshot.anchor_before(
6869 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6870 )
6871 };
6872 let end_anchor = if end_row > max_row {
6873 Anchor::max()
6874 } else {
6875 snapshot.buffer_snapshot.anchor_before(
6876 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6877 )
6878 };
6879
6880 let mut highlighted_rows = self
6881 .editor
6882 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6883
6884 let is_light = cx.theme().appearance().is_light();
6885
6886 for (ix, row_info) in row_infos.iter().enumerate() {
6887 let Some(diff_status) = row_info.diff_status else {
6888 continue;
6889 };
6890
6891 let background_color = match diff_status.kind {
6892 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6893 DiffHunkStatusKind::Deleted => {
6894 cx.theme().colors().version_control_deleted
6895 }
6896 DiffHunkStatusKind::Modified => {
6897 debug_panic!("modified diff status for row info");
6898 continue;
6899 }
6900 };
6901
6902 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6903
6904 let hollow_highlight = LineHighlight {
6905 background: (background_color.opacity(if is_light {
6906 0.08
6907 } else {
6908 0.06
6909 }))
6910 .into(),
6911 border: Some(if is_light {
6912 background_color.opacity(0.48)
6913 } else {
6914 background_color.opacity(0.36)
6915 }),
6916 };
6917
6918 let filled_highlight =
6919 solid_background(background_color.opacity(hunk_opacity)).into();
6920
6921 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6922 hollow_highlight
6923 } else {
6924 filled_highlight
6925 };
6926
6927 highlighted_rows
6928 .entry(start_row + DisplayRow(ix as u32))
6929 .or_insert(background);
6930 }
6931
6932 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6933 start_anchor..end_anchor,
6934 &snapshot.display_snapshot,
6935 cx.theme().colors(),
6936 );
6937 let highlighted_gutter_ranges =
6938 self.editor.read(cx).gutter_highlights_in_range(
6939 start_anchor..end_anchor,
6940 &snapshot.display_snapshot,
6941 cx,
6942 );
6943
6944 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6945 start_anchor..end_anchor,
6946 &snapshot.display_snapshot,
6947 cx,
6948 );
6949
6950 let (local_selections, selected_buffer_ids): (
6951 Vec<Selection<Point>>,
6952 Vec<BufferId>,
6953 ) = self.editor.update(cx, |editor, cx| {
6954 let all_selections = editor.selections.all::<Point>(cx);
6955 let selected_buffer_ids = if editor.is_singleton(cx) {
6956 Vec::new()
6957 } else {
6958 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6959
6960 for selection in all_selections {
6961 for buffer_id in snapshot
6962 .buffer_snapshot
6963 .buffer_ids_for_range(selection.range())
6964 {
6965 if selected_buffer_ids.last() != Some(&buffer_id) {
6966 selected_buffer_ids.push(buffer_id);
6967 }
6968 }
6969 }
6970
6971 selected_buffer_ids
6972 };
6973
6974 let mut selections = editor
6975 .selections
6976 .disjoint_in_range(start_anchor..end_anchor, cx);
6977 selections.extend(editor.selections.pending(cx));
6978
6979 (selections, selected_buffer_ids)
6980 });
6981
6982 let (selections, mut active_rows, newest_selection_head) = self
6983 .layout_selections(
6984 start_anchor,
6985 end_anchor,
6986 &local_selections,
6987 &snapshot,
6988 start_row,
6989 end_row,
6990 window,
6991 cx,
6992 );
6993 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6994 editor.active_breakpoints(start_row..end_row, window, cx)
6995 });
6996 if cx.has_flag::<Debugger>() {
6997 for display_row in breakpoint_rows.keys() {
6998 active_rows.entry(*display_row).or_default().breakpoint = true;
6999 }
7000 }
7001
7002 let line_numbers = self.layout_line_numbers(
7003 Some(&gutter_hitbox),
7004 gutter_dimensions,
7005 line_height,
7006 scroll_position,
7007 start_row..end_row,
7008 &row_infos,
7009 &active_rows,
7010 newest_selection_head,
7011 &snapshot,
7012 window,
7013 cx,
7014 );
7015
7016 // We add the gutter breakpoint indicator to breakpoint_rows after painting
7017 // line numbers so we don't paint a line number debug accent color if a user
7018 // has their mouse over that line when a breakpoint isn't there
7019 if cx.has_flag::<Debugger>() {
7020 let gutter_breakpoint_indicator =
7021 self.editor.read(cx).gutter_breakpoint_indicator;
7022 if let Some(gutter_breakpoint_point) = gutter_breakpoint_indicator {
7023 breakpoint_rows
7024 .entry(gutter_breakpoint_point.row())
7025 .or_insert_with(|| {
7026 let position = snapshot.display_point_to_anchor(
7027 gutter_breakpoint_point,
7028 Bias::Left,
7029 );
7030 let breakpoint = Breakpoint {
7031 kind: BreakpointKind::Standard,
7032 };
7033
7034 (position, breakpoint)
7035 });
7036 }
7037 }
7038
7039 let mut expand_toggles =
7040 window.with_element_namespace("expand_toggles", |window| {
7041 self.layout_expand_toggles(
7042 &gutter_hitbox,
7043 gutter_dimensions,
7044 em_width,
7045 line_height,
7046 scroll_position,
7047 &row_infos,
7048 window,
7049 cx,
7050 )
7051 });
7052
7053 let mut crease_toggles =
7054 window.with_element_namespace("crease_toggles", |window| {
7055 self.layout_crease_toggles(
7056 start_row..end_row,
7057 &row_infos,
7058 &active_rows,
7059 &snapshot,
7060 window,
7061 cx,
7062 )
7063 });
7064 let crease_trailers =
7065 window.with_element_namespace("crease_trailers", |window| {
7066 self.layout_crease_trailers(
7067 row_infos.iter().copied(),
7068 &snapshot,
7069 window,
7070 cx,
7071 )
7072 });
7073
7074 let display_hunks = self.layout_gutter_diff_hunks(
7075 line_height,
7076 &gutter_hitbox,
7077 start_row..end_row,
7078 &snapshot,
7079 window,
7080 cx,
7081 );
7082
7083 let mut line_layouts = Self::layout_lines(
7084 start_row..end_row,
7085 &snapshot,
7086 &self.style,
7087 editor_width,
7088 is_row_soft_wrapped,
7089 window,
7090 cx,
7091 );
7092
7093 let longest_line_blame_width = self
7094 .editor
7095 .update(cx, |editor, cx| {
7096 if !editor.show_git_blame_inline {
7097 return None;
7098 }
7099 let blame = editor.blame.as_ref()?;
7100 let blame_entry = blame
7101 .update(cx, |blame, cx| {
7102 let row_infos =
7103 snapshot.row_infos(snapshot.longest_row()).next()?;
7104 blame.blame_for_rows(&[row_infos], cx).next()
7105 })
7106 .flatten()?;
7107 let mut element = render_inline_blame_entry(
7108 self.editor.clone(),
7109 blame,
7110 blame_entry,
7111 &style,
7112 cx,
7113 );
7114 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7115 Some(
7116 element
7117 .layout_as_root(AvailableSpace::min_size(), window, cx)
7118 .width
7119 + inline_blame_padding,
7120 )
7121 })
7122 .unwrap_or(Pixels::ZERO);
7123
7124 let longest_line_width = layout_line(
7125 snapshot.longest_row(),
7126 &snapshot,
7127 &style,
7128 editor_width,
7129 is_row_soft_wrapped,
7130 window,
7131 cx,
7132 )
7133 .width;
7134
7135 let scrollbar_range_data = ScrollbarRangeData::new(
7136 scrollbar_bounds,
7137 letter_size,
7138 &snapshot,
7139 longest_line_width,
7140 longest_line_blame_width,
7141 &style,
7142 editor_width,
7143 cx,
7144 );
7145
7146 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7147 let mut scroll_width = scroll_range_bounds.size.width;
7148
7149 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7150 snapshot.sticky_header_excerpt(scroll_position.y)
7151 } else {
7152 None
7153 };
7154 let sticky_header_excerpt_id =
7155 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7156
7157 let blocks = window.with_element_namespace("blocks", |window| {
7158 self.render_blocks(
7159 start_row..end_row,
7160 &snapshot,
7161 &hitbox,
7162 &text_hitbox,
7163 editor_width,
7164 &mut scroll_width,
7165 &gutter_dimensions,
7166 em_width,
7167 gutter_dimensions.full_width(),
7168 line_height,
7169 &line_layouts,
7170 &local_selections,
7171 &selected_buffer_ids,
7172 is_row_soft_wrapped,
7173 sticky_header_excerpt_id,
7174 window,
7175 cx,
7176 )
7177 });
7178 let mut blocks = match blocks {
7179 Ok(blocks) => blocks,
7180 Err(resized_blocks) => {
7181 self.editor.update(cx, |editor, cx| {
7182 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7183 });
7184 return self.prepaint(None, bounds, &mut (), window, cx);
7185 }
7186 };
7187
7188 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7189 window.with_element_namespace("blocks", |window| {
7190 self.layout_sticky_buffer_header(
7191 sticky_header_excerpt,
7192 scroll_position.y,
7193 line_height,
7194 &snapshot,
7195 &hitbox,
7196 &selected_buffer_ids,
7197 &blocks,
7198 window,
7199 cx,
7200 )
7201 })
7202 });
7203
7204 let start_buffer_row =
7205 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7206 let end_buffer_row =
7207 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7208
7209 let scroll_max = point(
7210 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7211 max_row.as_f32(),
7212 );
7213
7214 self.editor.update(cx, |editor, cx| {
7215 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7216
7217 let autoscrolled = if autoscroll_horizontally {
7218 editor.autoscroll_horizontally(
7219 start_row,
7220 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7221 scroll_width,
7222 em_width,
7223 &line_layouts,
7224 cx,
7225 )
7226 } else {
7227 false
7228 };
7229
7230 if clamped || autoscrolled {
7231 snapshot = editor.snapshot(window, cx);
7232 scroll_position = snapshot.scroll_position();
7233 }
7234 });
7235
7236 let scroll_pixel_position = point(
7237 scroll_position.x * em_width,
7238 scroll_position.y * line_height,
7239 );
7240
7241 let indent_guides = self.layout_indent_guides(
7242 content_origin,
7243 text_hitbox.origin,
7244 start_buffer_row..end_buffer_row,
7245 scroll_pixel_position,
7246 line_height,
7247 &snapshot,
7248 window,
7249 cx,
7250 );
7251
7252 let crease_trailers =
7253 window.with_element_namespace("crease_trailers", |window| {
7254 self.prepaint_crease_trailers(
7255 crease_trailers,
7256 &line_layouts,
7257 line_height,
7258 content_origin,
7259 scroll_pixel_position,
7260 em_width,
7261 window,
7262 cx,
7263 )
7264 });
7265
7266 let (inline_completion_popover, inline_completion_popover_origin) = self
7267 .editor
7268 .update(cx, |editor, cx| {
7269 editor.render_edit_prediction_popover(
7270 &text_hitbox.bounds,
7271 content_origin,
7272 &snapshot,
7273 start_row..end_row,
7274 scroll_position.y,
7275 scroll_position.y + height_in_lines,
7276 &line_layouts,
7277 line_height,
7278 scroll_pixel_position,
7279 newest_selection_head,
7280 editor_width,
7281 &style,
7282 window,
7283 cx,
7284 )
7285 })
7286 .unzip();
7287
7288 let mut inline_diagnostics = self.layout_inline_diagnostics(
7289 &line_layouts,
7290 &crease_trailers,
7291 content_origin,
7292 scroll_pixel_position,
7293 inline_completion_popover_origin,
7294 start_row,
7295 end_row,
7296 line_height,
7297 em_width,
7298 &style,
7299 window,
7300 cx,
7301 );
7302
7303 let mut inline_blame = None;
7304 if let Some(newest_selection_head) = newest_selection_head {
7305 let display_row = newest_selection_head.row();
7306 if (start_row..end_row).contains(&display_row) {
7307 let line_ix = display_row.minus(start_row) as usize;
7308 let row_info = &row_infos[line_ix];
7309 let line_layout = &line_layouts[line_ix];
7310 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7311 inline_blame = self.layout_inline_blame(
7312 display_row,
7313 row_info,
7314 line_layout,
7315 crease_trailer_layout,
7316 em_width,
7317 content_origin,
7318 scroll_pixel_position,
7319 line_height,
7320 window,
7321 cx,
7322 );
7323 if inline_blame.is_some() {
7324 // Blame overrides inline diagnostics
7325 inline_diagnostics.remove(&display_row);
7326 }
7327 }
7328 }
7329
7330 let blamed_display_rows = self.layout_blame_entries(
7331 &row_infos,
7332 em_width,
7333 scroll_position,
7334 line_height,
7335 &gutter_hitbox,
7336 gutter_dimensions.git_blame_entries_width,
7337 window,
7338 cx,
7339 );
7340
7341 let scroll_max = point(
7342 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7343 max_scroll_top,
7344 );
7345
7346 self.editor.update(cx, |editor, cx| {
7347 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7348
7349 let autoscrolled = if autoscroll_horizontally {
7350 editor.autoscroll_horizontally(
7351 start_row,
7352 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7353 scroll_width,
7354 em_width,
7355 &line_layouts,
7356 cx,
7357 )
7358 } else {
7359 false
7360 };
7361
7362 if clamped || autoscrolled {
7363 snapshot = editor.snapshot(window, cx);
7364 scroll_position = snapshot.scroll_position();
7365 }
7366 });
7367
7368 let line_elements = self.prepaint_lines(
7369 start_row,
7370 &mut line_layouts,
7371 line_height,
7372 scroll_pixel_position,
7373 content_origin,
7374 window,
7375 cx,
7376 );
7377
7378 let mut block_start_rows = HashSet::default();
7379
7380 window.with_element_namespace("blocks", |window| {
7381 self.layout_blocks(
7382 &mut blocks,
7383 &mut block_start_rows,
7384 &hitbox,
7385 line_height,
7386 scroll_pixel_position,
7387 window,
7388 cx,
7389 );
7390 });
7391
7392 let cursors = self.collect_cursors(&snapshot, cx);
7393 let visible_row_range = start_row..end_row;
7394 let non_visible_cursors = cursors
7395 .iter()
7396 .any(|c| !visible_row_range.contains(&c.0.row()));
7397
7398 let visible_cursors = self.layout_visible_cursors(
7399 &snapshot,
7400 &selections,
7401 &block_start_rows,
7402 start_row..end_row,
7403 &line_layouts,
7404 &text_hitbox,
7405 content_origin,
7406 scroll_position,
7407 scroll_pixel_position,
7408 line_height,
7409 em_width,
7410 em_advance,
7411 autoscroll_containing_element,
7412 window,
7413 cx,
7414 );
7415
7416 let scrollbars_layout = self.layout_scrollbars(
7417 &snapshot,
7418 scrollbar_range_data,
7419 scroll_position,
7420 non_visible_cursors,
7421 window,
7422 cx,
7423 );
7424
7425 let gutter_settings = EditorSettings::get_global(cx).gutter;
7426
7427 let mut code_actions_indicator = None;
7428 if let Some(newest_selection_head) = newest_selection_head {
7429 let newest_selection_point =
7430 newest_selection_head.to_point(&snapshot.display_snapshot);
7431
7432 if (start_row..end_row).contains(&newest_selection_head.row()) {
7433 self.layout_cursor_popovers(
7434 line_height,
7435 &text_hitbox,
7436 content_origin,
7437 start_row,
7438 scroll_pixel_position,
7439 &line_layouts,
7440 newest_selection_head,
7441 newest_selection_point,
7442 &style,
7443 window,
7444 cx,
7445 );
7446
7447 let show_code_actions = snapshot
7448 .show_code_actions
7449 .unwrap_or(gutter_settings.code_actions);
7450 if show_code_actions {
7451 let newest_selection_point =
7452 newest_selection_head.to_point(&snapshot.display_snapshot);
7453 if !snapshot
7454 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7455 {
7456 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7457 MultiBufferRow(newest_selection_point.row),
7458 );
7459 if let Some((buffer, range)) = buffer {
7460 let buffer_id = buffer.remote_id();
7461 let row = range.start.row;
7462 let has_test_indicator = self
7463 .editor
7464 .read(cx)
7465 .tasks
7466 .contains_key(&(buffer_id, row));
7467
7468 let has_expand_indicator = row_infos
7469 .get(
7470 (newest_selection_head.row() - start_row).0
7471 as usize,
7472 )
7473 .is_some_and(|row_info| row_info.expand_info.is_some());
7474
7475 if !has_test_indicator && !has_expand_indicator {
7476 code_actions_indicator = self
7477 .layout_code_actions_indicator(
7478 line_height,
7479 newest_selection_head,
7480 scroll_pixel_position,
7481 &gutter_dimensions,
7482 &gutter_hitbox,
7483 &mut breakpoint_rows,
7484 &display_hunks,
7485 window,
7486 cx,
7487 );
7488 }
7489 }
7490 }
7491 }
7492 }
7493 }
7494
7495 self.layout_gutter_menu(
7496 line_height,
7497 &text_hitbox,
7498 content_origin,
7499 scroll_pixel_position,
7500 gutter_dimensions.width - gutter_dimensions.left_padding,
7501 window,
7502 cx,
7503 );
7504
7505 let test_indicators = if gutter_settings.runnables {
7506 self.layout_run_indicators(
7507 line_height,
7508 start_row..end_row,
7509 &row_infos,
7510 scroll_pixel_position,
7511 &gutter_dimensions,
7512 &gutter_hitbox,
7513 &display_hunks,
7514 &snapshot,
7515 &mut breakpoint_rows,
7516 window,
7517 cx,
7518 )
7519 } else {
7520 Vec::new()
7521 };
7522
7523 let show_breakpoints = snapshot
7524 .show_breakpoints
7525 .unwrap_or(gutter_settings.breakpoints);
7526 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7527 self.layout_breakpoints(
7528 line_height,
7529 start_row..end_row,
7530 scroll_pixel_position,
7531 &gutter_dimensions,
7532 &gutter_hitbox,
7533 &display_hunks,
7534 &snapshot,
7535 breakpoint_rows,
7536 &row_infos,
7537 window,
7538 cx,
7539 )
7540 } else {
7541 vec![]
7542 };
7543
7544 self.layout_signature_help(
7545 &hitbox,
7546 content_origin,
7547 scroll_pixel_position,
7548 newest_selection_head,
7549 start_row,
7550 &line_layouts,
7551 line_height,
7552 em_width,
7553 window,
7554 cx,
7555 );
7556
7557 if !cx.has_active_drag() {
7558 self.layout_hover_popovers(
7559 &snapshot,
7560 &hitbox,
7561 &text_hitbox,
7562 start_row..end_row,
7563 content_origin,
7564 scroll_pixel_position,
7565 &line_layouts,
7566 line_height,
7567 em_width,
7568 window,
7569 cx,
7570 );
7571 }
7572
7573 let mouse_context_menu = self.layout_mouse_context_menu(
7574 &snapshot,
7575 start_row..end_row,
7576 content_origin,
7577 window,
7578 cx,
7579 );
7580
7581 window.with_element_namespace("crease_toggles", |window| {
7582 self.prepaint_crease_toggles(
7583 &mut crease_toggles,
7584 line_height,
7585 &gutter_dimensions,
7586 gutter_settings,
7587 scroll_pixel_position,
7588 &gutter_hitbox,
7589 window,
7590 cx,
7591 )
7592 });
7593
7594 window.with_element_namespace("expand_toggles", |window| {
7595 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7596 });
7597
7598 let invisible_symbol_font_size = font_size / 2.;
7599 let tab_invisible = window
7600 .text_system()
7601 .shape_line(
7602 "→".into(),
7603 invisible_symbol_font_size,
7604 &[TextRun {
7605 len: "→".len(),
7606 font: self.style.text.font(),
7607 color: cx.theme().colors().editor_invisible,
7608 background_color: None,
7609 underline: None,
7610 strikethrough: None,
7611 }],
7612 )
7613 .unwrap();
7614 let space_invisible = window
7615 .text_system()
7616 .shape_line(
7617 "•".into(),
7618 invisible_symbol_font_size,
7619 &[TextRun {
7620 len: "•".len(),
7621 font: self.style.text.font(),
7622 color: cx.theme().colors().editor_invisible,
7623 background_color: None,
7624 underline: None,
7625 strikethrough: None,
7626 }],
7627 )
7628 .unwrap();
7629
7630 let mode = snapshot.mode;
7631
7632 let position_map = Rc::new(PositionMap {
7633 size: bounds.size,
7634 visible_row_range,
7635 scroll_pixel_position,
7636 scroll_max,
7637 line_layouts,
7638 line_height,
7639 em_width,
7640 em_advance,
7641 snapshot,
7642 gutter_hitbox: gutter_hitbox.clone(),
7643 text_hitbox: text_hitbox.clone(),
7644 });
7645
7646 self.editor.update(cx, |editor, _| {
7647 editor.last_position_map = Some(position_map.clone())
7648 });
7649
7650 let diff_hunk_controls = self.layout_diff_hunk_controls(
7651 start_row..end_row,
7652 &row_infos,
7653 &text_hitbox,
7654 &position_map,
7655 newest_selection_head,
7656 line_height,
7657 scroll_pixel_position,
7658 &display_hunks,
7659 self.editor.clone(),
7660 window,
7661 cx,
7662 );
7663
7664 EditorLayout {
7665 mode,
7666 position_map,
7667 visible_display_row_range: start_row..end_row,
7668 wrap_guides,
7669 indent_guides,
7670 hitbox,
7671 gutter_hitbox,
7672 display_hunks,
7673 content_origin,
7674 scrollbars_layout,
7675 active_rows,
7676 highlighted_rows,
7677 highlighted_ranges,
7678 highlighted_gutter_ranges,
7679 redacted_ranges,
7680 line_elements,
7681 line_numbers,
7682 blamed_display_rows,
7683 inline_diagnostics,
7684 inline_blame,
7685 blocks,
7686 cursors,
7687 visible_cursors,
7688 selections,
7689 inline_completion_popover,
7690 diff_hunk_controls,
7691 mouse_context_menu,
7692 test_indicators,
7693 breakpoints,
7694 code_actions_indicator,
7695 crease_toggles,
7696 crease_trailers,
7697 tab_invisible,
7698 space_invisible,
7699 sticky_buffer_header,
7700 expand_toggles,
7701 }
7702 })
7703 })
7704 })
7705 }
7706
7707 fn paint(
7708 &mut self,
7709 _: Option<&GlobalElementId>,
7710 bounds: Bounds<gpui::Pixels>,
7711 _: &mut Self::RequestLayoutState,
7712 layout: &mut Self::PrepaintState,
7713 window: &mut Window,
7714 cx: &mut App,
7715 ) {
7716 let focus_handle = self.editor.focus_handle(cx);
7717 let key_context = self
7718 .editor
7719 .update(cx, |editor, cx| editor.key_context(window, cx));
7720
7721 window.set_key_context(key_context);
7722 window.handle_input(
7723 &focus_handle,
7724 ElementInputHandler::new(bounds, self.editor.clone()),
7725 cx,
7726 );
7727 self.register_actions(window, cx);
7728 self.register_key_listeners(window, cx, layout);
7729
7730 let text_style = TextStyleRefinement {
7731 font_size: Some(self.style.text.font_size),
7732 line_height: Some(self.style.text.line_height),
7733 ..Default::default()
7734 };
7735 let rem_size = self.rem_size(cx);
7736 window.with_rem_size(rem_size, |window| {
7737 window.with_text_style(Some(text_style), |window| {
7738 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7739 self.paint_mouse_listeners(layout, window, cx);
7740 self.paint_background(layout, window, cx);
7741 self.paint_indent_guides(layout, window, cx);
7742
7743 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7744 self.paint_blamed_display_rows(layout, window, cx);
7745 self.paint_line_numbers(layout, window, cx);
7746 }
7747
7748 self.paint_text(layout, window, cx);
7749
7750 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7751 self.paint_gutter_highlights(layout, window, cx);
7752 self.paint_gutter_indicators(layout, window, cx);
7753 }
7754
7755 if !layout.blocks.is_empty() {
7756 window.with_element_namespace("blocks", |window| {
7757 self.paint_blocks(layout, window, cx);
7758 });
7759 }
7760
7761 window.with_element_namespace("blocks", |window| {
7762 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7763 sticky_header.paint(window, cx)
7764 }
7765 });
7766
7767 self.paint_scrollbars(layout, window, cx);
7768 self.paint_inline_completion_popover(layout, window, cx);
7769 self.paint_mouse_context_menu(layout, window, cx);
7770 });
7771 })
7772 })
7773 }
7774}
7775
7776pub(super) fn gutter_bounds(
7777 editor_bounds: Bounds<Pixels>,
7778 gutter_dimensions: GutterDimensions,
7779) -> Bounds<Pixels> {
7780 Bounds {
7781 origin: editor_bounds.origin,
7782 size: size(gutter_dimensions.width, editor_bounds.size.height),
7783 }
7784}
7785
7786struct ScrollbarRangeData {
7787 scrollbar_bounds: Bounds<Pixels>,
7788 scroll_range: Bounds<Pixels>,
7789 letter_size: Size<Pixels>,
7790}
7791
7792impl ScrollbarRangeData {
7793 pub fn new(
7794 scrollbar_bounds: Bounds<Pixels>,
7795 letter_size: Size<Pixels>,
7796 snapshot: &EditorSnapshot,
7797 longest_line_width: Pixels,
7798 longest_line_blame_width: Pixels,
7799 style: &EditorStyle,
7800 editor_width: Pixels,
7801 cx: &mut App,
7802 ) -> ScrollbarRangeData {
7803 // TODO: Simplify this function down, it requires a lot of parameters
7804 let max_row = snapshot.max_point().row();
7805 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7806
7807 let settings = EditorSettings::get_global(cx);
7808 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7809 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7810 ScrollBeyondLastLine::Off => px(1.),
7811 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7812 };
7813
7814 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7815 letter_size.width + style.scrollbar_width
7816 } else {
7817 px(0.0)
7818 };
7819
7820 let overscroll = size(
7821 right_margin + longest_line_blame_width,
7822 letter_size.height * scroll_beyond_last_line,
7823 );
7824
7825 let scroll_range = Bounds {
7826 origin: scrollbar_bounds.origin,
7827 size: text_bounds_size + overscroll,
7828 };
7829
7830 ScrollbarRangeData {
7831 scrollbar_bounds,
7832 scroll_range,
7833 letter_size,
7834 }
7835 }
7836}
7837
7838impl IntoElement for EditorElement {
7839 type Element = Self;
7840
7841 fn into_element(self) -> Self::Element {
7842 self
7843 }
7844}
7845
7846pub struct EditorLayout {
7847 position_map: Rc<PositionMap>,
7848 hitbox: Hitbox,
7849 gutter_hitbox: Hitbox,
7850 content_origin: gpui::Point<Pixels>,
7851 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7852 mode: EditorMode,
7853 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7854 indent_guides: Option<Vec<IndentGuideLayout>>,
7855 visible_display_row_range: Range<DisplayRow>,
7856 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7857 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7858 line_elements: SmallVec<[AnyElement; 1]>,
7859 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7860 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7861 blamed_display_rows: Option<Vec<AnyElement>>,
7862 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7863 inline_blame: Option<AnyElement>,
7864 blocks: Vec<BlockLayout>,
7865 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7866 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7867 redacted_ranges: Vec<Range<DisplayPoint>>,
7868 cursors: Vec<(DisplayPoint, Hsla)>,
7869 visible_cursors: Vec<CursorLayout>,
7870 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7871 code_actions_indicator: Option<AnyElement>,
7872 test_indicators: Vec<AnyElement>,
7873 breakpoints: Vec<AnyElement>,
7874 crease_toggles: Vec<Option<AnyElement>>,
7875 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7876 diff_hunk_controls: Vec<AnyElement>,
7877 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7878 inline_completion_popover: Option<AnyElement>,
7879 mouse_context_menu: Option<AnyElement>,
7880 tab_invisible: ShapedLine,
7881 space_invisible: ShapedLine,
7882 sticky_buffer_header: Option<AnyElement>,
7883}
7884
7885impl EditorLayout {
7886 fn line_end_overshoot(&self) -> Pixels {
7887 0.15 * self.position_map.line_height
7888 }
7889}
7890
7891struct LineNumberLayout {
7892 shaped_line: ShapedLine,
7893 hitbox: Option<Hitbox>,
7894}
7895
7896struct ColoredRange<T> {
7897 start: T,
7898 end: T,
7899 color: Hsla,
7900}
7901
7902#[derive(Clone)]
7903struct ScrollbarLayout {
7904 hitbox: Hitbox,
7905 visible_range: Range<f32>,
7906 visible: bool,
7907 text_unit_size: Pixels,
7908 thumb_size: Pixels,
7909 axis: Axis,
7910}
7911
7912impl ScrollbarLayout {
7913 const BORDER_WIDTH: Pixels = px(1.0);
7914 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7915 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7916 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7917
7918 fn thumb_bounds(&self) -> Bounds<Pixels> {
7919 match self.axis {
7920 Axis::Vertical => {
7921 let thumb_top = self.y_for_row(self.visible_range.start);
7922 let thumb_bottom = thumb_top + self.thumb_size;
7923 Bounds::from_corners(
7924 point(self.hitbox.left(), thumb_top),
7925 point(self.hitbox.right(), thumb_bottom),
7926 )
7927 }
7928 Axis::Horizontal => {
7929 let thumb_left =
7930 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7931 let thumb_right = thumb_left + self.thumb_size;
7932 Bounds::from_corners(
7933 point(thumb_left, self.hitbox.top()),
7934 point(thumb_right, self.hitbox.bottom()),
7935 )
7936 }
7937 }
7938 }
7939
7940 fn y_for_row(&self, row: f32) -> Pixels {
7941 self.hitbox.top() + row * self.text_unit_size
7942 }
7943
7944 fn marker_quads_for_ranges(
7945 &self,
7946 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7947 column: Option<usize>,
7948 ) -> Vec<PaintQuad> {
7949 struct MinMax {
7950 min: Pixels,
7951 max: Pixels,
7952 }
7953 let (x_range, height_limit) = if let Some(column) = column {
7954 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7955 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7956 let end = start + column_width;
7957 (
7958 Range { start, end },
7959 MinMax {
7960 min: Self::MIN_MARKER_HEIGHT,
7961 max: px(f32::MAX),
7962 },
7963 )
7964 } else {
7965 (
7966 Range {
7967 start: Self::BORDER_WIDTH,
7968 end: self.hitbox.size.width,
7969 },
7970 MinMax {
7971 min: Self::LINE_MARKER_HEIGHT,
7972 max: Self::LINE_MARKER_HEIGHT,
7973 },
7974 )
7975 };
7976
7977 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7978 let mut pixel_ranges = row_ranges
7979 .into_iter()
7980 .map(|range| {
7981 let start_y = row_to_y(range.start);
7982 let end_y = row_to_y(range.end)
7983 + self
7984 .text_unit_size
7985 .max(height_limit.min)
7986 .min(height_limit.max);
7987 ColoredRange {
7988 start: start_y,
7989 end: end_y,
7990 color: range.color,
7991 }
7992 })
7993 .peekable();
7994
7995 let mut quads = Vec::new();
7996 while let Some(mut pixel_range) = pixel_ranges.next() {
7997 while let Some(next_pixel_range) = pixel_ranges.peek() {
7998 if pixel_range.end >= next_pixel_range.start - px(1.0)
7999 && pixel_range.color == next_pixel_range.color
8000 {
8001 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8002 pixel_ranges.next();
8003 } else {
8004 break;
8005 }
8006 }
8007
8008 let bounds = Bounds::from_corners(
8009 point(x_range.start, pixel_range.start),
8010 point(x_range.end, pixel_range.end),
8011 );
8012 quads.push(quad(
8013 bounds,
8014 Corners::default(),
8015 pixel_range.color,
8016 Edges::default(),
8017 Hsla::transparent_black(),
8018 ));
8019 }
8020
8021 quads
8022 }
8023}
8024
8025struct CreaseTrailerLayout {
8026 element: AnyElement,
8027 bounds: Bounds<Pixels>,
8028}
8029
8030pub(crate) struct PositionMap {
8031 pub size: Size<Pixels>,
8032 pub line_height: Pixels,
8033 pub scroll_pixel_position: gpui::Point<Pixels>,
8034 pub scroll_max: gpui::Point<f32>,
8035 pub em_width: Pixels,
8036 pub em_advance: Pixels,
8037 pub visible_row_range: Range<DisplayRow>,
8038 pub line_layouts: Vec<LineWithInvisibles>,
8039 pub snapshot: EditorSnapshot,
8040 pub text_hitbox: Hitbox,
8041 pub gutter_hitbox: Hitbox,
8042}
8043
8044#[derive(Debug, Copy, Clone)]
8045pub struct PointForPosition {
8046 pub previous_valid: DisplayPoint,
8047 pub next_valid: DisplayPoint,
8048 pub exact_unclipped: DisplayPoint,
8049 pub column_overshoot_after_line_end: u32,
8050}
8051
8052impl PointForPosition {
8053 pub fn as_valid(&self) -> Option<DisplayPoint> {
8054 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8055 Some(self.previous_valid)
8056 } else {
8057 None
8058 }
8059 }
8060}
8061
8062impl PositionMap {
8063 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8064 let text_bounds = self.text_hitbox.bounds;
8065 let scroll_position = self.snapshot.scroll_position();
8066 let position = position - text_bounds.origin;
8067 let y = position.y.max(px(0.)).min(self.size.height);
8068 let x = position.x + (scroll_position.x * self.em_width);
8069 let row = ((y / self.line_height) + scroll_position.y) as u32;
8070
8071 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8072 .line_layouts
8073 .get(row as usize - scroll_position.y as usize)
8074 {
8075 if let Some(ix) = line.index_for_x(x) {
8076 (ix as u32, px(0.))
8077 } else {
8078 (line.len as u32, px(0.).max(x - line.width))
8079 }
8080 } else {
8081 (0, x)
8082 };
8083
8084 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8085 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8086 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8087
8088 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8089 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8090 PointForPosition {
8091 previous_valid,
8092 next_valid,
8093 exact_unclipped,
8094 column_overshoot_after_line_end,
8095 }
8096 }
8097}
8098
8099struct BlockLayout {
8100 id: BlockId,
8101 row: Option<DisplayRow>,
8102 element: AnyElement,
8103 available_space: Size<AvailableSpace>,
8104 style: BlockStyle,
8105 is_buffer_header: bool,
8106}
8107
8108pub fn layout_line(
8109 row: DisplayRow,
8110 snapshot: &EditorSnapshot,
8111 style: &EditorStyle,
8112 text_width: Pixels,
8113 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8114 window: &mut Window,
8115 cx: &mut App,
8116) -> LineWithInvisibles {
8117 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8118 LineWithInvisibles::from_chunks(
8119 chunks,
8120 &style,
8121 MAX_LINE_LEN,
8122 1,
8123 snapshot.mode,
8124 text_width,
8125 is_row_soft_wrapped,
8126 window,
8127 cx,
8128 )
8129 .pop()
8130 .unwrap()
8131}
8132
8133#[derive(Debug)]
8134pub struct IndentGuideLayout {
8135 origin: gpui::Point<Pixels>,
8136 length: Pixels,
8137 single_indent_width: Pixels,
8138 depth: u32,
8139 active: bool,
8140 settings: IndentGuideSettings,
8141}
8142
8143pub struct CursorLayout {
8144 origin: gpui::Point<Pixels>,
8145 block_width: Pixels,
8146 line_height: Pixels,
8147 color: Hsla,
8148 shape: CursorShape,
8149 block_text: Option<ShapedLine>,
8150 cursor_name: Option<AnyElement>,
8151}
8152
8153#[derive(Debug)]
8154pub struct CursorName {
8155 string: SharedString,
8156 color: Hsla,
8157 is_top_row: bool,
8158}
8159
8160impl CursorLayout {
8161 pub fn new(
8162 origin: gpui::Point<Pixels>,
8163 block_width: Pixels,
8164 line_height: Pixels,
8165 color: Hsla,
8166 shape: CursorShape,
8167 block_text: Option<ShapedLine>,
8168 ) -> CursorLayout {
8169 CursorLayout {
8170 origin,
8171 block_width,
8172 line_height,
8173 color,
8174 shape,
8175 block_text,
8176 cursor_name: None,
8177 }
8178 }
8179
8180 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8181 Bounds {
8182 origin: self.origin + origin,
8183 size: size(self.block_width, self.line_height),
8184 }
8185 }
8186
8187 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8188 match self.shape {
8189 CursorShape::Bar => Bounds {
8190 origin: self.origin + origin,
8191 size: size(px(2.0), self.line_height),
8192 },
8193 CursorShape::Block | CursorShape::Hollow => Bounds {
8194 origin: self.origin + origin,
8195 size: size(self.block_width, self.line_height),
8196 },
8197 CursorShape::Underline => Bounds {
8198 origin: self.origin
8199 + origin
8200 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8201 size: size(self.block_width, px(2.0)),
8202 },
8203 }
8204 }
8205
8206 pub fn layout(
8207 &mut self,
8208 origin: gpui::Point<Pixels>,
8209 cursor_name: Option<CursorName>,
8210 window: &mut Window,
8211 cx: &mut App,
8212 ) {
8213 if let Some(cursor_name) = cursor_name {
8214 let bounds = self.bounds(origin);
8215 let text_size = self.line_height / 1.5;
8216
8217 let name_origin = if cursor_name.is_top_row {
8218 point(bounds.right() - px(1.), bounds.top())
8219 } else {
8220 match self.shape {
8221 CursorShape::Bar => point(
8222 bounds.right() - px(2.),
8223 bounds.top() - text_size / 2. - px(1.),
8224 ),
8225 _ => point(
8226 bounds.right() - px(1.),
8227 bounds.top() - text_size / 2. - px(1.),
8228 ),
8229 }
8230 };
8231 let mut name_element = div()
8232 .bg(self.color)
8233 .text_size(text_size)
8234 .px_0p5()
8235 .line_height(text_size + px(2.))
8236 .text_color(cursor_name.color)
8237 .child(cursor_name.string.clone())
8238 .into_any_element();
8239
8240 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8241
8242 self.cursor_name = Some(name_element);
8243 }
8244 }
8245
8246 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8247 let bounds = self.bounds(origin);
8248
8249 //Draw background or border quad
8250 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8251 outline(bounds, self.color)
8252 } else {
8253 fill(bounds, self.color)
8254 };
8255
8256 if let Some(name) = &mut self.cursor_name {
8257 name.paint(window, cx);
8258 }
8259
8260 window.paint_quad(cursor);
8261
8262 if let Some(block_text) = &self.block_text {
8263 block_text
8264 .paint(self.origin + origin, self.line_height, window, cx)
8265 .log_err();
8266 }
8267 }
8268
8269 pub fn shape(&self) -> CursorShape {
8270 self.shape
8271 }
8272}
8273
8274#[derive(Debug)]
8275pub struct HighlightedRange {
8276 pub start_y: Pixels,
8277 pub line_height: Pixels,
8278 pub lines: Vec<HighlightedRangeLine>,
8279 pub color: Hsla,
8280 pub corner_radius: Pixels,
8281}
8282
8283#[derive(Debug)]
8284pub struct HighlightedRangeLine {
8285 pub start_x: Pixels,
8286 pub end_x: Pixels,
8287}
8288
8289impl HighlightedRange {
8290 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8291 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8292 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8293 self.paint_lines(
8294 self.start_y + self.line_height,
8295 &self.lines[1..],
8296 bounds,
8297 window,
8298 );
8299 } else {
8300 self.paint_lines(self.start_y, &self.lines, bounds, window);
8301 }
8302 }
8303
8304 fn paint_lines(
8305 &self,
8306 start_y: Pixels,
8307 lines: &[HighlightedRangeLine],
8308 _bounds: Bounds<Pixels>,
8309 window: &mut Window,
8310 ) {
8311 if lines.is_empty() {
8312 return;
8313 }
8314
8315 let first_line = lines.first().unwrap();
8316 let last_line = lines.last().unwrap();
8317
8318 let first_top_left = point(first_line.start_x, start_y);
8319 let first_top_right = point(first_line.end_x, start_y);
8320
8321 let curve_height = point(Pixels::ZERO, self.corner_radius);
8322 let curve_width = |start_x: Pixels, end_x: Pixels| {
8323 let max = (end_x - start_x) / 2.;
8324 let width = if max < self.corner_radius {
8325 max
8326 } else {
8327 self.corner_radius
8328 };
8329
8330 point(width, Pixels::ZERO)
8331 };
8332
8333 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8334 let mut builder = gpui::PathBuilder::fill();
8335 builder.move_to(first_top_right - top_curve_width);
8336 builder.curve_to(first_top_right + curve_height, first_top_right);
8337
8338 let mut iter = lines.iter().enumerate().peekable();
8339 while let Some((ix, line)) = iter.next() {
8340 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8341
8342 if let Some((_, next_line)) = iter.peek() {
8343 let next_top_right = point(next_line.end_x, bottom_right.y);
8344
8345 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8346 Ordering::Equal => {
8347 builder.line_to(bottom_right);
8348 }
8349 Ordering::Less => {
8350 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8351 builder.line_to(bottom_right - curve_height);
8352 if self.corner_radius > Pixels::ZERO {
8353 builder.curve_to(bottom_right - curve_width, bottom_right);
8354 }
8355 builder.line_to(next_top_right + curve_width);
8356 if self.corner_radius > Pixels::ZERO {
8357 builder.curve_to(next_top_right + curve_height, next_top_right);
8358 }
8359 }
8360 Ordering::Greater => {
8361 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8362 builder.line_to(bottom_right - curve_height);
8363 if self.corner_radius > Pixels::ZERO {
8364 builder.curve_to(bottom_right + curve_width, bottom_right);
8365 }
8366 builder.line_to(next_top_right - curve_width);
8367 if self.corner_radius > Pixels::ZERO {
8368 builder.curve_to(next_top_right + curve_height, next_top_right);
8369 }
8370 }
8371 }
8372 } else {
8373 let curve_width = curve_width(line.start_x, line.end_x);
8374 builder.line_to(bottom_right - curve_height);
8375 if self.corner_radius > Pixels::ZERO {
8376 builder.curve_to(bottom_right - curve_width, bottom_right);
8377 }
8378
8379 let bottom_left = point(line.start_x, bottom_right.y);
8380 builder.line_to(bottom_left + curve_width);
8381 if self.corner_radius > Pixels::ZERO {
8382 builder.curve_to(bottom_left - curve_height, bottom_left);
8383 }
8384 }
8385 }
8386
8387 if first_line.start_x > last_line.start_x {
8388 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8389 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8390 builder.line_to(second_top_left + curve_height);
8391 if self.corner_radius > Pixels::ZERO {
8392 builder.curve_to(second_top_left + curve_width, second_top_left);
8393 }
8394 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8395 builder.line_to(first_bottom_left - curve_width);
8396 if self.corner_radius > Pixels::ZERO {
8397 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8398 }
8399 }
8400
8401 builder.line_to(first_top_left + curve_height);
8402 if self.corner_radius > Pixels::ZERO {
8403 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8404 }
8405 builder.line_to(first_top_right - top_curve_width);
8406
8407 if let Ok(path) = builder.build() {
8408 window.paint_path(path, self.color);
8409 }
8410 }
8411}
8412
8413enum CursorPopoverType {
8414 CodeContextMenu,
8415 EditPrediction,
8416}
8417
8418pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8419 (delta.pow(1.5) / 100.0).into()
8420}
8421
8422fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8423 (delta.pow(1.2) / 300.0).into()
8424}
8425
8426pub fn register_action<T: Action>(
8427 editor: &Entity<Editor>,
8428 window: &mut Window,
8429 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8430) {
8431 let editor = editor.clone();
8432 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8433 let action = action.downcast_ref().unwrap();
8434 if phase == DispatchPhase::Bubble {
8435 editor.update(cx, |editor, cx| {
8436 listener(editor, action, window, cx);
8437 })
8438 }
8439 })
8440}
8441
8442fn compute_auto_height_layout(
8443 editor: &mut Editor,
8444 max_lines: usize,
8445 max_line_number_width: Pixels,
8446 known_dimensions: Size<Option<Pixels>>,
8447 available_width: AvailableSpace,
8448 window: &mut Window,
8449 cx: &mut Context<Editor>,
8450) -> Option<Size<Pixels>> {
8451 let width = known_dimensions.width.or({
8452 if let AvailableSpace::Definite(available_width) = available_width {
8453 Some(available_width)
8454 } else {
8455 None
8456 }
8457 })?;
8458 if let Some(height) = known_dimensions.height {
8459 return Some(size(width, height));
8460 }
8461
8462 let style = editor.style.as_ref().unwrap();
8463 let font_id = window.text_system().resolve_font(&style.text.font());
8464 let font_size = style.text.font_size.to_pixels(window.rem_size());
8465 let line_height = style.text.line_height_in_pixels(window.rem_size());
8466 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8467
8468 let mut snapshot = editor.snapshot(window, cx);
8469 let gutter_dimensions = snapshot
8470 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8471 .unwrap_or_default();
8472
8473 editor.gutter_dimensions = gutter_dimensions;
8474 let text_width = width - gutter_dimensions.width;
8475 let overscroll = size(em_width, px(0.));
8476
8477 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8478 if editor.set_wrap_width(Some(editor_width), cx) {
8479 snapshot = editor.snapshot(window, cx);
8480 }
8481
8482 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8483 let height = scroll_height
8484 .max(line_height)
8485 .min(line_height * max_lines as f32);
8486
8487 Some(size(width, height))
8488}
8489
8490#[cfg(test)]
8491mod tests {
8492 use super::*;
8493 use crate::{
8494 display_map::{BlockPlacement, BlockProperties},
8495 editor_tests::{init_test, update_test_language_settings},
8496 Editor, MultiBuffer,
8497 };
8498 use gpui::{TestAppContext, VisualTestContext};
8499 use language::language_settings;
8500 use log::info;
8501 use std::num::NonZeroU32;
8502 use util::test::sample_text;
8503
8504 #[gpui::test]
8505 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8506 init_test(cx, |_| {});
8507 let window = cx.add_window(|window, cx| {
8508 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8509 Editor::new(EditorMode::Full, buffer, None, window, cx)
8510 });
8511
8512 let editor = window.root(cx).unwrap();
8513 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8514 let line_height = window
8515 .update(cx, |_, window, _| {
8516 style.text.line_height_in_pixels(window.rem_size())
8517 })
8518 .unwrap();
8519 let element = EditorElement::new(&editor, style);
8520 let snapshot = window
8521 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8522 .unwrap();
8523
8524 let layouts = cx
8525 .update_window(*window, |_, window, cx| {
8526 element.layout_line_numbers(
8527 None,
8528 GutterDimensions {
8529 left_padding: Pixels::ZERO,
8530 right_padding: Pixels::ZERO,
8531 width: px(30.0),
8532 margin: Pixels::ZERO,
8533 git_blame_entries_width: None,
8534 },
8535 line_height,
8536 gpui::Point::default(),
8537 DisplayRow(0)..DisplayRow(6),
8538 &(0..6)
8539 .map(|row| RowInfo {
8540 buffer_row: Some(row),
8541 ..Default::default()
8542 })
8543 .collect::<Vec<_>>(),
8544 &BTreeMap::default(),
8545 Some(DisplayPoint::new(DisplayRow(0), 0)),
8546 &snapshot,
8547 window,
8548 cx,
8549 )
8550 })
8551 .unwrap();
8552 assert_eq!(layouts.len(), 6);
8553
8554 let relative_rows = window
8555 .update(cx, |editor, window, cx| {
8556 let snapshot = editor.snapshot(window, cx);
8557 element.calculate_relative_line_numbers(
8558 &snapshot,
8559 &(DisplayRow(0)..DisplayRow(6)),
8560 Some(DisplayRow(3)),
8561 )
8562 })
8563 .unwrap();
8564 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8565 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8566 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8567 // current line has no relative number
8568 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8569 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8570
8571 // works if cursor is before screen
8572 let relative_rows = window
8573 .update(cx, |editor, window, cx| {
8574 let snapshot = editor.snapshot(window, cx);
8575 element.calculate_relative_line_numbers(
8576 &snapshot,
8577 &(DisplayRow(3)..DisplayRow(6)),
8578 Some(DisplayRow(1)),
8579 )
8580 })
8581 .unwrap();
8582 assert_eq!(relative_rows.len(), 3);
8583 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8584 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8585 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8586
8587 // works if cursor is after screen
8588 let relative_rows = window
8589 .update(cx, |editor, window, cx| {
8590 let snapshot = editor.snapshot(window, cx);
8591 element.calculate_relative_line_numbers(
8592 &snapshot,
8593 &(DisplayRow(0)..DisplayRow(3)),
8594 Some(DisplayRow(6)),
8595 )
8596 })
8597 .unwrap();
8598 assert_eq!(relative_rows.len(), 3);
8599 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8600 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8601 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8602 }
8603
8604 #[gpui::test]
8605 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8606 init_test(cx, |_| {});
8607
8608 let window = cx.add_window(|window, cx| {
8609 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8610 Editor::new(EditorMode::Full, buffer, None, window, cx)
8611 });
8612 let cx = &mut VisualTestContext::from_window(*window, cx);
8613 let editor = window.root(cx).unwrap();
8614 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8615
8616 window
8617 .update(cx, |editor, window, cx| {
8618 editor.cursor_shape = CursorShape::Block;
8619 editor.change_selections(None, window, cx, |s| {
8620 s.select_ranges([
8621 Point::new(0, 0)..Point::new(1, 0),
8622 Point::new(3, 2)..Point::new(3, 3),
8623 Point::new(5, 6)..Point::new(6, 0),
8624 ]);
8625 });
8626 })
8627 .unwrap();
8628
8629 let (_, state) = cx.draw(
8630 point(px(500.), px(500.)),
8631 size(px(500.), px(500.)),
8632 |_, _| EditorElement::new(&editor, style),
8633 );
8634
8635 assert_eq!(state.selections.len(), 1);
8636 let local_selections = &state.selections[0].1;
8637 assert_eq!(local_selections.len(), 3);
8638 // moves cursor back one line
8639 assert_eq!(
8640 local_selections[0].head,
8641 DisplayPoint::new(DisplayRow(0), 6)
8642 );
8643 assert_eq!(
8644 local_selections[0].range,
8645 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8646 );
8647
8648 // moves cursor back one column
8649 assert_eq!(
8650 local_selections[1].range,
8651 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8652 );
8653 assert_eq!(
8654 local_selections[1].head,
8655 DisplayPoint::new(DisplayRow(3), 2)
8656 );
8657
8658 // leaves cursor on the max point
8659 assert_eq!(
8660 local_selections[2].range,
8661 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8662 );
8663 assert_eq!(
8664 local_selections[2].head,
8665 DisplayPoint::new(DisplayRow(6), 0)
8666 );
8667
8668 // active lines does not include 1 (even though the range of the selection does)
8669 assert_eq!(
8670 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8671 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8672 );
8673 }
8674
8675 #[gpui::test]
8676 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8677 init_test(cx, |_| {});
8678
8679 let window = cx.add_window(|window, cx| {
8680 let buffer = MultiBuffer::build_simple("", cx);
8681 Editor::new(EditorMode::Full, buffer, None, window, cx)
8682 });
8683 let cx = &mut VisualTestContext::from_window(*window, cx);
8684 let editor = window.root(cx).unwrap();
8685 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8686 window
8687 .update(cx, |editor, window, cx| {
8688 editor.set_placeholder_text("hello", cx);
8689 editor.insert_blocks(
8690 [BlockProperties {
8691 style: BlockStyle::Fixed,
8692 placement: BlockPlacement::Above(Anchor::min()),
8693 height: 3,
8694 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8695 priority: 0,
8696 }],
8697 None,
8698 cx,
8699 );
8700
8701 // Blur the editor so that it displays placeholder text.
8702 window.blur();
8703 })
8704 .unwrap();
8705
8706 let (_, state) = cx.draw(
8707 point(px(500.), px(500.)),
8708 size(px(500.), px(500.)),
8709 |_, _| EditorElement::new(&editor, style),
8710 );
8711 assert_eq!(state.position_map.line_layouts.len(), 4);
8712 assert_eq!(state.line_numbers.len(), 1);
8713 assert_eq!(
8714 state
8715 .line_numbers
8716 .get(&MultiBufferRow(0))
8717 .map(|line_number| line_number.shaped_line.text.as_ref()),
8718 Some("1")
8719 );
8720 }
8721
8722 #[gpui::test]
8723 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8724 const TAB_SIZE: u32 = 4;
8725
8726 let input_text = "\t \t|\t| a b";
8727 let expected_invisibles = vec![
8728 Invisible::Tab {
8729 line_start_offset: 0,
8730 line_end_offset: TAB_SIZE as usize,
8731 },
8732 Invisible::Whitespace {
8733 line_offset: TAB_SIZE as usize,
8734 },
8735 Invisible::Tab {
8736 line_start_offset: TAB_SIZE as usize + 1,
8737 line_end_offset: TAB_SIZE as usize * 2,
8738 },
8739 Invisible::Tab {
8740 line_start_offset: TAB_SIZE as usize * 2 + 1,
8741 line_end_offset: TAB_SIZE as usize * 3,
8742 },
8743 Invisible::Whitespace {
8744 line_offset: TAB_SIZE as usize * 3 + 1,
8745 },
8746 Invisible::Whitespace {
8747 line_offset: TAB_SIZE as usize * 3 + 3,
8748 },
8749 ];
8750 assert_eq!(
8751 expected_invisibles.len(),
8752 input_text
8753 .chars()
8754 .filter(|initial_char| initial_char.is_whitespace())
8755 .count(),
8756 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8757 );
8758
8759 for show_line_numbers in [true, false] {
8760 init_test(cx, |s| {
8761 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8762 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8763 });
8764
8765 let actual_invisibles = collect_invisibles_from_new_editor(
8766 cx,
8767 EditorMode::Full,
8768 input_text,
8769 px(500.0),
8770 show_line_numbers,
8771 );
8772
8773 assert_eq!(expected_invisibles, actual_invisibles);
8774 }
8775 }
8776
8777 #[gpui::test]
8778 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8779 init_test(cx, |s| {
8780 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8781 s.defaults.tab_size = NonZeroU32::new(4);
8782 });
8783
8784 for editor_mode_without_invisibles in [
8785 EditorMode::SingleLine { auto_width: false },
8786 EditorMode::AutoHeight { max_lines: 100 },
8787 ] {
8788 for show_line_numbers in [true, false] {
8789 let invisibles = collect_invisibles_from_new_editor(
8790 cx,
8791 editor_mode_without_invisibles,
8792 "\t\t\t| | a b",
8793 px(500.0),
8794 show_line_numbers,
8795 );
8796 assert!(invisibles.is_empty(),
8797 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8798 }
8799 }
8800 }
8801
8802 #[gpui::test]
8803 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8804 let tab_size = 4;
8805 let input_text = "a\tbcd ".repeat(9);
8806 let repeated_invisibles = [
8807 Invisible::Tab {
8808 line_start_offset: 1,
8809 line_end_offset: tab_size as usize,
8810 },
8811 Invisible::Whitespace {
8812 line_offset: tab_size as usize + 3,
8813 },
8814 Invisible::Whitespace {
8815 line_offset: tab_size as usize + 4,
8816 },
8817 Invisible::Whitespace {
8818 line_offset: tab_size as usize + 5,
8819 },
8820 Invisible::Whitespace {
8821 line_offset: tab_size as usize + 6,
8822 },
8823 Invisible::Whitespace {
8824 line_offset: tab_size as usize + 7,
8825 },
8826 ];
8827 let expected_invisibles = std::iter::once(repeated_invisibles)
8828 .cycle()
8829 .take(9)
8830 .flatten()
8831 .collect::<Vec<_>>();
8832 assert_eq!(
8833 expected_invisibles.len(),
8834 input_text
8835 .chars()
8836 .filter(|initial_char| initial_char.is_whitespace())
8837 .count(),
8838 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8839 );
8840 info!("Expected invisibles: {expected_invisibles:?}");
8841
8842 init_test(cx, |_| {});
8843
8844 // Put the same string with repeating whitespace pattern into editors of various size,
8845 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8846 let resize_step = 10.0;
8847 let mut editor_width = 200.0;
8848 while editor_width <= 1000.0 {
8849 for show_line_numbers in [true, false] {
8850 update_test_language_settings(cx, |s| {
8851 s.defaults.tab_size = NonZeroU32::new(tab_size);
8852 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8853 s.defaults.preferred_line_length = Some(editor_width as u32);
8854 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8855 });
8856
8857 let actual_invisibles = collect_invisibles_from_new_editor(
8858 cx,
8859 EditorMode::Full,
8860 &input_text,
8861 px(editor_width),
8862 show_line_numbers,
8863 );
8864
8865 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8866 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8867 let mut i = 0;
8868 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8869 i = actual_index;
8870 match expected_invisibles.get(i) {
8871 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8872 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8873 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8874 _ => {
8875 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8876 }
8877 },
8878 None => {
8879 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8880 }
8881 }
8882 }
8883 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8884 assert!(
8885 missing_expected_invisibles.is_empty(),
8886 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8887 );
8888
8889 editor_width += resize_step;
8890 }
8891 }
8892 }
8893
8894 fn collect_invisibles_from_new_editor(
8895 cx: &mut TestAppContext,
8896 editor_mode: EditorMode,
8897 input_text: &str,
8898 editor_width: Pixels,
8899 show_line_numbers: bool,
8900 ) -> Vec<Invisible> {
8901 info!(
8902 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8903 editor_width.0
8904 );
8905 let window = cx.add_window(|window, cx| {
8906 let buffer = MultiBuffer::build_simple(input_text, cx);
8907 Editor::new(editor_mode, buffer, None, window, cx)
8908 });
8909 let cx = &mut VisualTestContext::from_window(*window, cx);
8910 let editor = window.root(cx).unwrap();
8911
8912 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8913 window
8914 .update(cx, |editor, _, cx| {
8915 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8916 editor.set_wrap_width(Some(editor_width), cx);
8917 editor.set_show_line_numbers(show_line_numbers, cx);
8918 })
8919 .unwrap();
8920 let (_, state) = cx.draw(
8921 point(px(500.), px(500.)),
8922 size(px(500.), px(500.)),
8923 |_, _| EditorElement::new(&editor, style),
8924 );
8925 state
8926 .position_map
8927 .line_layouts
8928 .iter()
8929 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8930 .cloned()
8931 .collect()
8932 }
8933}
8934
8935fn diff_hunk_controls(
8936 row: u32,
8937 status: &DiffHunkStatus,
8938 hunk_range: Range<Anchor>,
8939 is_created_file: bool,
8940 line_height: Pixels,
8941 editor: &Entity<Editor>,
8942 cx: &mut App,
8943) -> AnyElement {
8944 h_flex()
8945 .h(line_height)
8946 .mr_1()
8947 .gap_1()
8948 .px_0p5()
8949 .pb_1()
8950 .border_x_1()
8951 .border_b_1()
8952 .border_color(cx.theme().colors().border_variant)
8953 .rounded_b_lg()
8954 .bg(cx.theme().colors().editor_background)
8955 .gap_1()
8956 .occlude()
8957 .shadow_md()
8958 .child(if status.has_secondary_hunk() {
8959 Button::new(("stage", row as u64), "Stage")
8960 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8961 .tooltip({
8962 let focus_handle = editor.focus_handle(cx);
8963 move |window, cx| {
8964 Tooltip::for_action_in(
8965 "Stage Hunk",
8966 &::git::ToggleStaged,
8967 &focus_handle,
8968 window,
8969 cx,
8970 )
8971 }
8972 })
8973 .on_click({
8974 let editor = editor.clone();
8975 move |_event, _window, cx| {
8976 editor.update(cx, |editor, cx| {
8977 editor.stage_or_unstage_diff_hunks(
8978 true,
8979 vec![hunk_range.start..hunk_range.start],
8980 cx,
8981 );
8982 });
8983 }
8984 })
8985 } else {
8986 Button::new(("unstage", row as u64), "Unstage")
8987 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8988 .tooltip({
8989 let focus_handle = editor.focus_handle(cx);
8990 move |window, cx| {
8991 Tooltip::for_action_in(
8992 "Unstage Hunk",
8993 &::git::ToggleStaged,
8994 &focus_handle,
8995 window,
8996 cx,
8997 )
8998 }
8999 })
9000 .on_click({
9001 let editor = editor.clone();
9002 move |_event, _window, cx| {
9003 editor.update(cx, |editor, cx| {
9004 editor.stage_or_unstage_diff_hunks(
9005 false,
9006 vec![hunk_range.start..hunk_range.start],
9007 cx,
9008 );
9009 });
9010 }
9011 })
9012 })
9013 .child(
9014 Button::new("restore", "Restore")
9015 .tooltip({
9016 let focus_handle = editor.focus_handle(cx);
9017 move |window, cx| {
9018 Tooltip::for_action_in(
9019 "Restore Hunk",
9020 &::git::Restore,
9021 &focus_handle,
9022 window,
9023 cx,
9024 )
9025 }
9026 })
9027 .on_click({
9028 let editor = editor.clone();
9029 move |_event, window, cx| {
9030 editor.update(cx, |editor, cx| {
9031 let snapshot = editor.snapshot(window, cx);
9032 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9033 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
9034 });
9035 }
9036 })
9037 .disabled(is_created_file),
9038 )
9039 .when(
9040 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
9041 |el| {
9042 el.child(
9043 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
9044 .shape(IconButtonShape::Square)
9045 .icon_size(IconSize::Small)
9046 // .disabled(!has_multiple_hunks)
9047 .tooltip({
9048 let focus_handle = editor.focus_handle(cx);
9049 move |window, cx| {
9050 Tooltip::for_action_in(
9051 "Next Hunk",
9052 &GoToHunk,
9053 &focus_handle,
9054 window,
9055 cx,
9056 )
9057 }
9058 })
9059 .on_click({
9060 let editor = editor.clone();
9061 move |_event, window, cx| {
9062 editor.update(cx, |editor, cx| {
9063 let snapshot = editor.snapshot(window, cx);
9064 let position =
9065 hunk_range.end.to_point(&snapshot.buffer_snapshot);
9066 editor.go_to_hunk_before_or_after_position(
9067 &snapshot,
9068 position,
9069 Direction::Next,
9070 window,
9071 cx,
9072 );
9073 editor.expand_selected_diff_hunks(cx);
9074 });
9075 }
9076 }),
9077 )
9078 .child(
9079 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
9080 .shape(IconButtonShape::Square)
9081 .icon_size(IconSize::Small)
9082 // .disabled(!has_multiple_hunks)
9083 .tooltip({
9084 let focus_handle = editor.focus_handle(cx);
9085 move |window, cx| {
9086 Tooltip::for_action_in(
9087 "Previous Hunk",
9088 &GoToPreviousHunk,
9089 &focus_handle,
9090 window,
9091 cx,
9092 )
9093 }
9094 })
9095 .on_click({
9096 let editor = editor.clone();
9097 move |_event, window, cx| {
9098 editor.update(cx, |editor, cx| {
9099 let snapshot = editor.snapshot(window, cx);
9100 let point =
9101 hunk_range.start.to_point(&snapshot.buffer_snapshot);
9102 editor.go_to_hunk_before_or_after_position(
9103 &snapshot,
9104 point,
9105 Direction::Prev,
9106 window,
9107 cx,
9108 );
9109 editor.expand_selected_diff_hunks(cx);
9110 });
9111 }
9112 }),
9113 )
9114 },
9115 )
9116 .into_any_element()
9117}