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::copy_and_trim);
248 register_action(editor, window, Editor::paste);
249 register_action(editor, window, Editor::undo);
250 register_action(editor, window, Editor::redo);
251 register_action(editor, window, Editor::move_page_up);
252 register_action(editor, window, Editor::move_page_down);
253 register_action(editor, window, Editor::next_screen);
254 register_action(editor, window, Editor::scroll_cursor_top);
255 register_action(editor, window, Editor::scroll_cursor_center);
256 register_action(editor, window, Editor::scroll_cursor_bottom);
257 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
258 register_action(editor, window, |editor, _: &LineDown, window, cx| {
259 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
260 });
261 register_action(editor, window, |editor, _: &LineUp, window, cx| {
262 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
263 });
264 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
265 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
266 });
267 register_action(
268 editor,
269 window,
270 |editor, HandleInput(text): &HandleInput, window, cx| {
271 if text.is_empty() {
272 return;
273 }
274 editor.handle_input(text, window, cx);
275 },
276 );
277 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
278 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
279 });
280 register_action(editor, window, |editor, _: &PageDown, window, cx| {
281 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
282 });
283 register_action(editor, window, |editor, _: &PageUp, window, cx| {
284 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
285 });
286 register_action(editor, window, Editor::move_to_previous_word_start);
287 register_action(editor, window, Editor::move_to_previous_subword_start);
288 register_action(editor, window, Editor::move_to_next_word_end);
289 register_action(editor, window, Editor::move_to_next_subword_end);
290 register_action(editor, window, Editor::move_to_beginning_of_line);
291 register_action(editor, window, Editor::move_to_end_of_line);
292 register_action(editor, window, Editor::move_to_start_of_paragraph);
293 register_action(editor, window, Editor::move_to_end_of_paragraph);
294 register_action(editor, window, Editor::move_to_beginning);
295 register_action(editor, window, Editor::move_to_end);
296 register_action(editor, window, Editor::move_to_start_of_excerpt);
297 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
298 register_action(editor, window, Editor::move_to_end_of_excerpt);
299 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
300 register_action(editor, window, Editor::select_up);
301 register_action(editor, window, Editor::select_down);
302 register_action(editor, window, Editor::select_left);
303 register_action(editor, window, Editor::select_right);
304 register_action(editor, window, Editor::select_to_previous_word_start);
305 register_action(editor, window, Editor::select_to_previous_subword_start);
306 register_action(editor, window, Editor::select_to_next_word_end);
307 register_action(editor, window, Editor::select_to_next_subword_end);
308 register_action(editor, window, Editor::select_to_beginning_of_line);
309 register_action(editor, window, Editor::select_to_end_of_line);
310 register_action(editor, window, Editor::select_to_start_of_paragraph);
311 register_action(editor, window, Editor::select_to_end_of_paragraph);
312 register_action(editor, window, Editor::select_to_start_of_excerpt);
313 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
314 register_action(editor, window, Editor::select_to_end_of_excerpt);
315 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
316 register_action(editor, window, Editor::select_to_beginning);
317 register_action(editor, window, Editor::select_to_end);
318 register_action(editor, window, Editor::select_all);
319 register_action(editor, window, |editor, action, window, cx| {
320 editor.select_all_matches(action, window, cx).log_err();
321 });
322 register_action(editor, window, Editor::select_line);
323 register_action(editor, window, Editor::split_selection_into_lines);
324 register_action(editor, window, Editor::add_selection_above);
325 register_action(editor, window, Editor::add_selection_below);
326 register_action(editor, window, |editor, action, window, cx| {
327 editor.select_next(action, window, cx).log_err();
328 });
329 register_action(editor, window, |editor, action, window, cx| {
330 editor.select_previous(action, window, cx).log_err();
331 });
332 register_action(editor, window, Editor::toggle_comments);
333 register_action(editor, window, Editor::select_larger_syntax_node);
334 register_action(editor, window, Editor::select_smaller_syntax_node);
335 register_action(editor, window, Editor::select_enclosing_symbol);
336 register_action(editor, window, Editor::move_to_enclosing_bracket);
337 register_action(editor, window, Editor::undo_selection);
338 register_action(editor, window, Editor::redo_selection);
339 if !editor.read(cx).is_singleton(cx) {
340 register_action(editor, window, Editor::expand_excerpts);
341 register_action(editor, window, Editor::expand_excerpts_up);
342 register_action(editor, window, Editor::expand_excerpts_down);
343 }
344 register_action(editor, window, Editor::go_to_diagnostic);
345 register_action(editor, window, Editor::go_to_prev_diagnostic);
346 register_action(editor, window, Editor::go_to_next_hunk);
347 register_action(editor, window, Editor::go_to_prev_hunk);
348 register_action(editor, window, |editor, action, window, cx| {
349 editor
350 .go_to_definition(action, window, cx)
351 .detach_and_log_err(cx);
352 });
353 register_action(editor, window, |editor, action, window, cx| {
354 editor
355 .go_to_definition_split(action, window, cx)
356 .detach_and_log_err(cx);
357 });
358 register_action(editor, window, |editor, action, window, cx| {
359 editor
360 .go_to_declaration(action, window, cx)
361 .detach_and_log_err(cx);
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor
365 .go_to_declaration_split(action, window, cx)
366 .detach_and_log_err(cx);
367 });
368 register_action(editor, window, |editor, action, window, cx| {
369 editor
370 .go_to_implementation(action, window, cx)
371 .detach_and_log_err(cx);
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor
375 .go_to_implementation_split(action, window, cx)
376 .detach_and_log_err(cx);
377 });
378 register_action(editor, window, |editor, action, window, cx| {
379 editor
380 .go_to_type_definition(action, window, cx)
381 .detach_and_log_err(cx);
382 });
383 register_action(editor, window, |editor, action, window, cx| {
384 editor
385 .go_to_type_definition_split(action, window, cx)
386 .detach_and_log_err(cx);
387 });
388 register_action(editor, window, Editor::open_url);
389 register_action(editor, window, Editor::open_selected_filename);
390 register_action(editor, window, Editor::fold);
391 register_action(editor, window, Editor::fold_at_level);
392 register_action(editor, window, Editor::fold_all);
393 register_action(editor, window, Editor::fold_function_bodies);
394 register_action(editor, window, Editor::fold_at);
395 register_action(editor, window, Editor::fold_recursive);
396 register_action(editor, window, Editor::toggle_fold);
397 register_action(editor, window, Editor::toggle_fold_recursive);
398 register_action(editor, window, Editor::unfold_lines);
399 register_action(editor, window, Editor::unfold_recursive);
400 register_action(editor, window, Editor::unfold_all);
401 register_action(editor, window, Editor::unfold_at);
402 register_action(editor, window, Editor::fold_selected_ranges);
403 register_action(editor, window, Editor::set_mark);
404 register_action(editor, window, Editor::swap_selection_ends);
405 register_action(editor, window, Editor::show_completions);
406 register_action(editor, window, Editor::show_word_completions);
407 register_action(editor, window, Editor::toggle_code_actions);
408 register_action(editor, window, Editor::open_excerpts);
409 register_action(editor, window, Editor::open_excerpts_in_split);
410 register_action(editor, window, Editor::open_proposed_changes_editor);
411 register_action(editor, window, Editor::toggle_soft_wrap);
412 register_action(editor, window, Editor::toggle_tab_bar);
413 register_action(editor, window, Editor::toggle_line_numbers);
414 register_action(editor, window, Editor::toggle_relative_line_numbers);
415 register_action(editor, window, Editor::toggle_indent_guides);
416 register_action(editor, window, Editor::toggle_inlay_hints);
417 register_action(editor, window, Editor::toggle_edit_predictions);
418 register_action(editor, window, Editor::toggle_inline_diagnostics);
419 register_action(editor, window, hover_popover::hover);
420 register_action(editor, window, Editor::reveal_in_finder);
421 register_action(editor, window, Editor::copy_path);
422 register_action(editor, window, Editor::copy_relative_path);
423 register_action(editor, window, Editor::copy_file_name);
424 register_action(editor, window, Editor::copy_file_name_without_extension);
425 register_action(editor, window, Editor::copy_highlight_json);
426 register_action(editor, window, Editor::copy_permalink_to_line);
427 register_action(editor, window, Editor::open_permalink_to_line);
428 register_action(editor, window, Editor::copy_file_location);
429 register_action(editor, window, Editor::toggle_git_blame);
430 register_action(editor, window, Editor::toggle_git_blame_inline);
431 register_action(editor, window, Editor::toggle_selected_diff_hunks);
432 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
433 register_action(editor, window, Editor::stage_and_next);
434 register_action(editor, window, Editor::unstage_and_next);
435 register_action(editor, window, Editor::expand_all_diff_hunks);
436
437 register_action(editor, window, |editor, action, window, cx| {
438 if let Some(task) = editor.format(action, window, cx) {
439 task.detach_and_notify_err(window, cx);
440 } else {
441 cx.propagate();
442 }
443 });
444 register_action(editor, window, |editor, action, window, cx| {
445 if let Some(task) = editor.format_selections(action, window, cx) {
446 task.detach_and_notify_err(window, cx);
447 } else {
448 cx.propagate();
449 }
450 });
451 register_action(editor, window, |editor, action, window, cx| {
452 if let Some(task) = editor.organize_imports(action, window, cx) {
453 task.detach_and_notify_err(window, cx);
454 } else {
455 cx.propagate();
456 }
457 });
458 register_action(editor, window, Editor::restart_language_server);
459 register_action(editor, window, Editor::show_character_palette);
460 register_action(editor, window, |editor, action, window, cx| {
461 if let Some(task) = editor.confirm_completion(action, window, cx) {
462 task.detach_and_notify_err(window, cx);
463 } else {
464 cx.propagate();
465 }
466 });
467 register_action(editor, window, |editor, action, window, cx| {
468 if let Some(task) = editor.compose_completion(action, window, cx) {
469 task.detach_and_notify_err(window, cx);
470 } else {
471 cx.propagate();
472 }
473 });
474 register_action(editor, window, |editor, action, window, cx| {
475 if let Some(task) = editor.confirm_code_action(action, window, cx) {
476 task.detach_and_notify_err(window, cx);
477 } else {
478 cx.propagate();
479 }
480 });
481 register_action(editor, window, |editor, action, window, cx| {
482 if let Some(task) = editor.rename(action, window, cx) {
483 task.detach_and_notify_err(window, cx);
484 } else {
485 cx.propagate();
486 }
487 });
488 register_action(editor, window, |editor, action, window, cx| {
489 if let Some(task) = editor.confirm_rename(action, window, cx) {
490 task.detach_and_notify_err(window, cx);
491 } else {
492 cx.propagate();
493 }
494 });
495 register_action(editor, window, |editor, action, window, cx| {
496 if let Some(task) = editor.find_all_references(action, window, cx) {
497 task.detach_and_log_err(cx);
498 } else {
499 cx.propagate();
500 }
501 });
502 register_action(editor, window, Editor::show_signature_help);
503 register_action(editor, window, Editor::next_edit_prediction);
504 register_action(editor, window, Editor::previous_edit_prediction);
505 register_action(editor, window, Editor::show_inline_completion);
506 register_action(editor, window, Editor::context_menu_first);
507 register_action(editor, window, Editor::context_menu_prev);
508 register_action(editor, window, Editor::context_menu_next);
509 register_action(editor, window, Editor::context_menu_last);
510 register_action(editor, window, Editor::display_cursor_names);
511 register_action(editor, window, Editor::unique_lines_case_insensitive);
512 register_action(editor, window, Editor::unique_lines_case_sensitive);
513 register_action(editor, window, Editor::accept_partial_inline_completion);
514 register_action(editor, window, Editor::accept_edit_prediction);
515 register_action(editor, window, Editor::restore_file);
516 register_action(editor, window, Editor::git_restore);
517 register_action(editor, window, Editor::apply_all_diff_hunks);
518 register_action(editor, window, Editor::apply_selected_diff_hunks);
519 register_action(editor, window, Editor::open_active_item_in_terminal);
520 register_action(editor, window, Editor::reload_file);
521 register_action(editor, window, Editor::spawn_nearest_task);
522 register_action(editor, window, Editor::insert_uuid_v4);
523 register_action(editor, window, Editor::insert_uuid_v7);
524 register_action(editor, window, Editor::open_selections_in_multibuffer);
525 if cx.has_flag::<Debugger>() {
526 register_action(editor, window, Editor::toggle_breakpoint);
527 register_action(editor, window, Editor::edit_log_breakpoint);
528 }
529 }
530
531 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
532 let position_map = layout.position_map.clone();
533 window.on_key_event({
534 let editor = self.editor.clone();
535 move |event: &ModifiersChangedEvent, phase, window, cx| {
536 if phase != DispatchPhase::Bubble {
537 return;
538 }
539 editor.update(cx, |editor, cx| {
540 let inlay_hint_settings = inlay_hint_settings(
541 editor.selections.newest_anchor().head(),
542 &editor.buffer.read(cx).snapshot(cx),
543 cx,
544 );
545
546 if let Some(inlay_modifiers) = inlay_hint_settings
547 .toggle_on_modifiers_press
548 .as_ref()
549 .filter(|modifiers| modifiers.modified())
550 {
551 editor.refresh_inlay_hints(
552 InlayHintRefreshReason::ModifiersChanged(
553 inlay_modifiers == &event.modifiers,
554 ),
555 cx,
556 );
557 }
558
559 if editor.hover_state.focused(window, cx) {
560 return;
561 }
562
563 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
564 })
565 }
566 });
567 }
568
569 fn mouse_left_down(
570 editor: &mut Editor,
571 event: &MouseDownEvent,
572 hovered_hunk: Option<Range<Anchor>>,
573 position_map: &PositionMap,
574 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
575 window: &mut Window,
576 cx: &mut Context<Editor>,
577 ) {
578 if window.default_prevented() {
579 return;
580 }
581
582 let text_hitbox = &position_map.text_hitbox;
583 let gutter_hitbox = &position_map.gutter_hitbox;
584 let mut click_count = event.click_count;
585 let mut modifiers = event.modifiers;
586
587 if let Some(hovered_hunk) = hovered_hunk {
588 editor.toggle_single_diff_hunk(hovered_hunk, cx);
589 cx.notify();
590 return;
591 } else if gutter_hitbox.is_hovered(window) {
592 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
593 } else if !text_hitbox.is_hovered(window) {
594 return;
595 }
596
597 let is_singleton = editor.buffer().read(cx).is_singleton();
598
599 if click_count == 2 && !is_singleton {
600 match EditorSettings::get_global(cx).double_click_in_multibuffer {
601 DoubleClickInMultibuffer::Select => {
602 // do nothing special on double click, all selection logic is below
603 }
604 DoubleClickInMultibuffer::Open => {
605 if modifiers.alt {
606 // if double click is made with alt, pretend it's a regular double click without opening and alt,
607 // and run the selection logic.
608 modifiers.alt = false;
609 } else {
610 let scroll_position_row =
611 position_map.scroll_pixel_position.y / position_map.line_height;
612 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
613 + position_map.scroll_pixel_position.y)
614 / position_map.line_height)
615 as u32;
616 let multi_buffer_row = position_map
617 .snapshot
618 .display_point_to_point(
619 DisplayPoint::new(DisplayRow(display_row), 0),
620 Bias::Right,
621 )
622 .row;
623 let line_offset_from_top = display_row - scroll_position_row as u32;
624 // if double click is made without alt, open the corresponding excerp
625 editor.open_excerpts_common(
626 Some(JumpData::MultiBufferRow {
627 row: MultiBufferRow(multi_buffer_row),
628 line_offset_from_top,
629 }),
630 false,
631 window,
632 cx,
633 );
634 return;
635 }
636 }
637 }
638 }
639
640 let point_for_position = position_map.point_for_position(event.position);
641 let position = point_for_position.previous_valid;
642 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
643 editor.select(
644 SelectPhase::BeginColumnar {
645 position,
646 reset: false,
647 goal_column: point_for_position.exact_unclipped.column(),
648 },
649 window,
650 cx,
651 );
652 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
653 {
654 editor.select(
655 SelectPhase::Extend {
656 position,
657 click_count,
658 },
659 window,
660 cx,
661 );
662 } else {
663 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
664 let multi_cursor_modifier = match multi_cursor_setting {
665 MultiCursorModifier::Alt => modifiers.alt,
666 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
667 };
668 editor.select(
669 SelectPhase::Begin {
670 position,
671 add: multi_cursor_modifier,
672 click_count,
673 },
674 window,
675 cx,
676 );
677 }
678 cx.stop_propagation();
679
680 if !is_singleton {
681 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
682 + position_map.scroll_pixel_position.y)
683 / position_map.line_height) as u32;
684 let multi_buffer_row = position_map
685 .snapshot
686 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
687 .row;
688 if line_numbers
689 .get(&MultiBufferRow(multi_buffer_row))
690 .and_then(|line_number| line_number.hitbox.as_ref())
691 .is_some_and(|hitbox| hitbox.contains(&event.position))
692 {
693 let scroll_position_row =
694 position_map.scroll_pixel_position.y / position_map.line_height;
695 let line_offset_from_top = display_row - scroll_position_row as u32;
696
697 editor.open_excerpts_common(
698 Some(JumpData::MultiBufferRow {
699 row: MultiBufferRow(multi_buffer_row),
700 line_offset_from_top,
701 }),
702 modifiers.alt,
703 window,
704 cx,
705 );
706 cx.stop_propagation();
707 }
708 }
709 }
710
711 fn mouse_right_down(
712 editor: &mut Editor,
713 event: &MouseDownEvent,
714 position_map: &PositionMap,
715 window: &mut Window,
716 cx: &mut Context<Editor>,
717 ) {
718 if !position_map.text_hitbox.is_hovered(window) {
719 return;
720 }
721 let point_for_position = position_map.point_for_position(event.position);
722 mouse_context_menu::deploy_context_menu(
723 editor,
724 Some(event.position),
725 point_for_position.previous_valid,
726 window,
727 cx,
728 );
729 cx.stop_propagation();
730 }
731
732 fn mouse_middle_down(
733 editor: &mut Editor,
734 event: &MouseDownEvent,
735 position_map: &PositionMap,
736 window: &mut Window,
737 cx: &mut Context<Editor>,
738 ) {
739 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
740 return;
741 }
742
743 let point_for_position = position_map.point_for_position(event.position);
744 let position = point_for_position.previous_valid;
745
746 editor.select(
747 SelectPhase::BeginColumnar {
748 position,
749 reset: true,
750 goal_column: point_for_position.exact_unclipped.column(),
751 },
752 window,
753 cx,
754 );
755 }
756
757 fn mouse_up(
758 editor: &mut Editor,
759 event: &MouseUpEvent,
760 position_map: &PositionMap,
761 window: &mut Window,
762 cx: &mut Context<Editor>,
763 ) {
764 let text_hitbox = &position_map.text_hitbox;
765 let end_selection = editor.has_pending_selection();
766 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
767
768 if end_selection {
769 editor.select(SelectPhase::End, window, cx);
770 }
771
772 if end_selection && pending_nonempty_selections {
773 cx.stop_propagation();
774 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
775 && event.button == MouseButton::Middle
776 {
777 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
778 return;
779 }
780
781 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
782 if EditorSettings::get_global(cx).middle_click_paste {
783 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
784 let point_for_position = position_map.point_for_position(event.position);
785 let position = point_for_position.previous_valid;
786
787 editor.select(
788 SelectPhase::Begin {
789 position,
790 add: false,
791 click_count: 1,
792 },
793 window,
794 cx,
795 );
796 editor.insert(&text, window, cx);
797 }
798 cx.stop_propagation()
799 }
800 }
801 }
802
803 fn click(
804 editor: &mut Editor,
805 event: &ClickEvent,
806 position_map: &PositionMap,
807 window: &mut Window,
808 cx: &mut Context<Editor>,
809 ) {
810 let text_hitbox = &position_map.text_hitbox;
811 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
812
813 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
814 let multi_cursor_modifier = match multi_cursor_setting {
815 MultiCursorModifier::Alt => event.modifiers().secondary(),
816 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
817 };
818
819 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
820 let point = position_map.point_for_position(event.up.position);
821 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
822
823 cx.stop_propagation();
824 }
825 }
826
827 fn mouse_dragged(
828 editor: &mut Editor,
829 event: &MouseMoveEvent,
830 position_map: &PositionMap,
831 window: &mut Window,
832 cx: &mut Context<Editor>,
833 ) {
834 if !editor.has_pending_selection() {
835 return;
836 }
837
838 let text_bounds = position_map.text_hitbox.bounds;
839 let point_for_position = position_map.point_for_position(event.position);
840 let mut scroll_delta = gpui::Point::<f32>::default();
841 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
842 let top = text_bounds.origin.y + vertical_margin;
843 let bottom = text_bounds.bottom_left().y - vertical_margin;
844 if event.position.y < top {
845 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
846 }
847 if event.position.y > bottom {
848 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
849 }
850
851 // We need horizontal width of text
852 let style = editor.style.clone().unwrap_or_default();
853 let font_id = window.text_system().resolve_font(&style.text.font());
854 let font_size = style.text.font_size.to_pixels(window.rem_size());
855 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
856
857 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
858
859 let scroll_space: Pixels = scroll_margin_x * em_width;
860
861 let left = text_bounds.origin.x + scroll_space;
862 let right = text_bounds.top_right().x - scroll_space;
863
864 if event.position.x < left {
865 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
866 }
867 if event.position.x > right {
868 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
869 }
870
871 editor.select(
872 SelectPhase::Update {
873 position: point_for_position.previous_valid,
874 goal_column: point_for_position.exact_unclipped.column(),
875 scroll_delta,
876 },
877 window,
878 cx,
879 );
880 }
881
882 fn mouse_moved(
883 editor: &mut Editor,
884 event: &MouseMoveEvent,
885 position_map: &PositionMap,
886 window: &mut Window,
887 cx: &mut Context<Editor>,
888 ) {
889 let text_hitbox = &position_map.text_hitbox;
890 let gutter_hitbox = &position_map.gutter_hitbox;
891 let modifiers = event.modifiers;
892 let gutter_hovered = gutter_hitbox.is_hovered(window);
893 editor.set_gutter_hovered(gutter_hovered, cx);
894 editor.gutter_breakpoint_indicator = None;
895
896 if gutter_hovered {
897 let new_point = position_map
898 .point_for_position(event.position)
899 .previous_valid;
900 let buffer_anchor = position_map
901 .snapshot
902 .display_point_to_anchor(new_point, Bias::Left);
903
904 if position_map
905 .snapshot
906 .buffer_snapshot
907 .buffer_for_excerpt(buffer_anchor.excerpt_id)
908 .is_some_and(|buffer| buffer.file().is_some())
909 {
910 editor.gutter_breakpoint_indicator = Some(new_point);
911 }
912 }
913
914 cx.notify();
915
916 // Don't trigger hover popover if mouse is hovering over context menu
917 if text_hitbox.is_hovered(window) {
918 let point_for_position = position_map.point_for_position(event.position);
919
920 editor.update_hovered_link(
921 point_for_position,
922 &position_map.snapshot,
923 modifiers,
924 window,
925 cx,
926 );
927
928 if let Some(point) = point_for_position.as_valid() {
929 let anchor = position_map
930 .snapshot
931 .buffer_snapshot
932 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
933 hover_at(editor, Some(anchor), window, cx);
934 Self::update_visible_cursor(editor, point, position_map, window, cx);
935 } else {
936 hover_at(editor, None, window, cx);
937 }
938 } else {
939 editor.hide_hovered_link(cx);
940 hover_at(editor, None, window, cx);
941 if gutter_hovered {
942 cx.stop_propagation();
943 }
944 }
945 }
946
947 fn update_visible_cursor(
948 editor: &mut Editor,
949 point: DisplayPoint,
950 position_map: &PositionMap,
951 window: &mut Window,
952 cx: &mut Context<Editor>,
953 ) {
954 let snapshot = &position_map.snapshot;
955 let Some(hub) = editor.collaboration_hub() else {
956 return;
957 };
958 let start = snapshot.display_snapshot.clip_point(
959 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
960 Bias::Left,
961 );
962 let end = snapshot.display_snapshot.clip_point(
963 DisplayPoint::new(
964 point.row(),
965 (point.column() + 1).min(snapshot.line_len(point.row())),
966 ),
967 Bias::Right,
968 );
969
970 let range = snapshot
971 .buffer_snapshot
972 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
973 ..snapshot
974 .buffer_snapshot
975 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
976
977 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
978 return;
979 };
980 let key = crate::HoveredCursor {
981 replica_id: selection.replica_id,
982 selection_id: selection.selection.id,
983 };
984 editor.hovered_cursors.insert(
985 key.clone(),
986 cx.spawn_in(window, async move |editor, cx| {
987 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
988 editor
989 .update(cx, |editor, cx| {
990 editor.hovered_cursors.remove(&key);
991 cx.notify();
992 })
993 .ok();
994 }),
995 );
996 cx.notify()
997 }
998
999 fn layout_selections(
1000 &self,
1001 start_anchor: Anchor,
1002 end_anchor: Anchor,
1003 local_selections: &[Selection<Point>],
1004 snapshot: &EditorSnapshot,
1005 start_row: DisplayRow,
1006 end_row: DisplayRow,
1007 window: &mut Window,
1008 cx: &mut App,
1009 ) -> (
1010 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1011 BTreeMap<DisplayRow, LineHighlightSpec>,
1012 Option<DisplayPoint>,
1013 ) {
1014 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1015 let mut active_rows = BTreeMap::new();
1016 let mut newest_selection_head = None;
1017 self.editor.update(cx, |editor, cx| {
1018 if editor.show_local_selections {
1019 let mut layouts = Vec::new();
1020 let newest = editor.selections.newest(cx);
1021 for selection in local_selections.iter().cloned() {
1022 let is_empty = selection.start == selection.end;
1023 let is_newest = selection == newest;
1024
1025 let layout = SelectionLayout::new(
1026 selection,
1027 editor.selections.line_mode,
1028 editor.cursor_shape,
1029 &snapshot.display_snapshot,
1030 is_newest,
1031 editor.leader_peer_id.is_none(),
1032 None,
1033 );
1034 if is_newest {
1035 newest_selection_head = Some(layout.head);
1036 }
1037
1038 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1039 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1040 {
1041 let contains_non_empty_selection = active_rows
1042 .entry(DisplayRow(row))
1043 .or_insert_with(LineHighlightSpec::default);
1044 contains_non_empty_selection.selection |= !is_empty;
1045 }
1046 layouts.push(layout);
1047 }
1048
1049 let player = editor.current_user_player_color(cx);
1050 selections.push((player, layouts));
1051 }
1052
1053 if let Some(collaboration_hub) = &editor.collaboration_hub {
1054 // When following someone, render the local selections in their color.
1055 if let Some(leader_id) = editor.leader_peer_id {
1056 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1057 {
1058 if let Some(participant_index) = collaboration_hub
1059 .user_participant_indices(cx)
1060 .get(&collaborator.user_id)
1061 {
1062 if let Some((local_selection_style, _)) = selections.first_mut() {
1063 *local_selection_style = cx
1064 .theme()
1065 .players()
1066 .color_for_participant(participant_index.0);
1067 }
1068 }
1069 }
1070 }
1071
1072 let mut remote_selections = HashMap::default();
1073 for selection in snapshot.remote_selections_in_range(
1074 &(start_anchor..end_anchor),
1075 collaboration_hub.as_ref(),
1076 cx,
1077 ) {
1078 let selection_style =
1079 Self::get_participant_color(selection.participant_index, cx);
1080
1081 // Don't re-render the leader's selections, since the local selections
1082 // match theirs.
1083 if Some(selection.peer_id) == editor.leader_peer_id {
1084 continue;
1085 }
1086 let key = HoveredCursor {
1087 replica_id: selection.replica_id,
1088 selection_id: selection.selection.id,
1089 };
1090
1091 let is_shown =
1092 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1093
1094 remote_selections
1095 .entry(selection.replica_id)
1096 .or_insert((selection_style, Vec::new()))
1097 .1
1098 .push(SelectionLayout::new(
1099 selection.selection,
1100 selection.line_mode,
1101 selection.cursor_shape,
1102 &snapshot.display_snapshot,
1103 false,
1104 false,
1105 if is_shown { selection.user_name } else { None },
1106 ));
1107 }
1108
1109 selections.extend(remote_selections.into_values());
1110 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1111 let layouts = snapshot
1112 .buffer_snapshot
1113 .selections_in_range(&(start_anchor..end_anchor), true)
1114 .map(move |(_, line_mode, cursor_shape, selection)| {
1115 SelectionLayout::new(
1116 selection,
1117 line_mode,
1118 cursor_shape,
1119 &snapshot.display_snapshot,
1120 false,
1121 false,
1122 None,
1123 )
1124 })
1125 .collect::<Vec<_>>();
1126 let player = editor.current_user_player_color(cx);
1127 selections.push((player, layouts));
1128 }
1129 });
1130 (selections, active_rows, newest_selection_head)
1131 }
1132
1133 fn collect_cursors(
1134 &self,
1135 snapshot: &EditorSnapshot,
1136 cx: &mut App,
1137 ) -> Vec<(DisplayPoint, Hsla)> {
1138 let editor = self.editor.read(cx);
1139 let mut cursors = Vec::new();
1140 let mut skip_local = false;
1141 let mut add_cursor = |anchor: Anchor, color| {
1142 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1143 };
1144 // Remote cursors
1145 if let Some(collaboration_hub) = &editor.collaboration_hub {
1146 for remote_selection in snapshot.remote_selections_in_range(
1147 &(Anchor::min()..Anchor::max()),
1148 collaboration_hub.deref(),
1149 cx,
1150 ) {
1151 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1152 add_cursor(remote_selection.selection.head(), color.cursor);
1153 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1154 skip_local = true;
1155 }
1156 }
1157 }
1158 // Local cursors
1159 if !skip_local {
1160 let color = cx.theme().players().local().cursor;
1161 editor.selections.disjoint.iter().for_each(|selection| {
1162 add_cursor(selection.head(), color);
1163 });
1164 if let Some(ref selection) = editor.selections.pending_anchor() {
1165 add_cursor(selection.head(), color);
1166 }
1167 }
1168 cursors
1169 }
1170
1171 fn layout_visible_cursors(
1172 &self,
1173 snapshot: &EditorSnapshot,
1174 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1175 block_start_rows: &HashSet<DisplayRow>,
1176 visible_display_row_range: Range<DisplayRow>,
1177 line_layouts: &[LineWithInvisibles],
1178 text_hitbox: &Hitbox,
1179 content_origin: gpui::Point<Pixels>,
1180 scroll_position: gpui::Point<f32>,
1181 scroll_pixel_position: gpui::Point<Pixels>,
1182 line_height: Pixels,
1183 em_width: Pixels,
1184 em_advance: Pixels,
1185 autoscroll_containing_element: bool,
1186 window: &mut Window,
1187 cx: &mut App,
1188 ) -> Vec<CursorLayout> {
1189 let mut autoscroll_bounds = None;
1190 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1191 let mut cursors = Vec::new();
1192
1193 let show_local_cursors = editor.show_local_cursors(window, cx);
1194
1195 for (player_color, selections) in selections {
1196 for selection in selections {
1197 let cursor_position = selection.head;
1198
1199 let in_range = visible_display_row_range.contains(&cursor_position.row());
1200 if (selection.is_local && !show_local_cursors)
1201 || !in_range
1202 || block_start_rows.contains(&cursor_position.row())
1203 {
1204 continue;
1205 }
1206
1207 let cursor_row_layout = &line_layouts
1208 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1209 let cursor_column = cursor_position.column() as usize;
1210
1211 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1212 let mut block_width =
1213 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1214 if block_width == Pixels::ZERO {
1215 block_width = em_advance;
1216 }
1217 let block_text = if let CursorShape::Block = selection.cursor_shape {
1218 snapshot
1219 .grapheme_at(cursor_position)
1220 .or_else(|| {
1221 if cursor_column == 0 {
1222 snapshot.placeholder_text().and_then(|s| {
1223 s.graphemes(true).next().map(|s| s.to_string().into())
1224 })
1225 } else {
1226 None
1227 }
1228 })
1229 .and_then(|text| {
1230 let len = text.len();
1231
1232 let font = cursor_row_layout
1233 .font_id_for_index(cursor_column)
1234 .and_then(|cursor_font_id| {
1235 window.text_system().get_font_for_id(cursor_font_id)
1236 })
1237 .unwrap_or(self.style.text.font());
1238
1239 // Invert the text color for the block cursor. Ensure that the text
1240 // color is opaque enough to be visible against the background color.
1241 //
1242 // 0.75 is an arbitrary threshold to determine if the background color is
1243 // opaque enough to use as a text color.
1244 //
1245 // TODO: In the future we should ensure themes have a `text_inverse` color.
1246 let color = if cx.theme().colors().editor_background.a < 0.75 {
1247 match cx.theme().appearance {
1248 Appearance::Dark => Hsla::black(),
1249 Appearance::Light => Hsla::white(),
1250 }
1251 } else {
1252 cx.theme().colors().editor_background
1253 };
1254
1255 window
1256 .text_system()
1257 .shape_line(
1258 text,
1259 cursor_row_layout.font_size,
1260 &[TextRun {
1261 len,
1262 font,
1263 color,
1264 background_color: None,
1265 strikethrough: None,
1266 underline: None,
1267 }],
1268 )
1269 .log_err()
1270 })
1271 } else {
1272 None
1273 };
1274
1275 let x = cursor_character_x - scroll_pixel_position.x;
1276 let y = (cursor_position.row().as_f32()
1277 - scroll_pixel_position.y / line_height)
1278 * line_height;
1279 if selection.is_newest {
1280 editor.pixel_position_of_newest_cursor = Some(point(
1281 text_hitbox.origin.x + x + block_width / 2.,
1282 text_hitbox.origin.y + y + line_height / 2.,
1283 ));
1284
1285 if autoscroll_containing_element {
1286 let top = text_hitbox.origin.y
1287 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1288 * line_height;
1289 let left = text_hitbox.origin.x
1290 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1291 .max(0.)
1292 * em_width;
1293
1294 let bottom = text_hitbox.origin.y
1295 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1296 * line_height;
1297 let right = text_hitbox.origin.x
1298 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1299 * em_width;
1300
1301 autoscroll_bounds =
1302 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1303 }
1304 }
1305
1306 let mut cursor = CursorLayout {
1307 color: player_color.cursor,
1308 block_width,
1309 origin: point(x, y),
1310 line_height,
1311 shape: selection.cursor_shape,
1312 block_text,
1313 cursor_name: None,
1314 };
1315 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1316 string: name,
1317 color: self.style.background,
1318 is_top_row: cursor_position.row().0 == 0,
1319 });
1320 cursor.layout(content_origin, cursor_name, window, cx);
1321 cursors.push(cursor);
1322 }
1323 }
1324
1325 cursors
1326 });
1327
1328 if let Some(bounds) = autoscroll_bounds {
1329 window.request_autoscroll(bounds);
1330 }
1331
1332 cursor_layouts
1333 }
1334
1335 fn layout_scrollbars(
1336 &self,
1337 snapshot: &EditorSnapshot,
1338 scrollbar_range_data: ScrollbarRangeData,
1339 scroll_position: gpui::Point<f32>,
1340 non_visible_cursors: bool,
1341 window: &mut Window,
1342 cx: &mut App,
1343 ) -> AxisPair<Option<ScrollbarLayout>> {
1344 let letter_size = scrollbar_range_data.letter_size;
1345 let text_units_per_page = axis_pair(
1346 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1347 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1348 );
1349
1350 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1351 let show_scrollbars = self.editor.read(cx).show_scrollbars
1352 && match scrollbar_settings.show {
1353 ShowScrollbar::Auto => {
1354 let editor = self.editor.read(cx);
1355 let is_singleton = editor.is_singleton(cx);
1356 // Git
1357 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1358 ||
1359 // Buffer Search Results
1360 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1361 ||
1362 // Selected Text Occurrences
1363 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1364 ||
1365 // Selected Symbol Occurrences
1366 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1367 ||
1368 // Diagnostics
1369 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1370 ||
1371 // Cursors out of sight
1372 non_visible_cursors
1373 ||
1374 // Scrollmanager
1375 editor.scroll_manager.scrollbars_visible()
1376 }
1377 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1378 ShowScrollbar::Always => true,
1379 ShowScrollbar::Never => false,
1380 };
1381
1382 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1383
1384 if snapshot.mode != EditorMode::Full {
1385 return axis_pair(None, None);
1386 }
1387
1388 let visible_range = axis_pair(
1389 axes.horizontal
1390 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1391 axes.vertical
1392 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1393 );
1394
1395 // If a drag took place after we started dragging the scrollbar,
1396 // cancel the scrollbar drag.
1397 if cx.has_active_drag() {
1398 self.editor.update(cx, |editor, cx| {
1399 editor
1400 .scroll_manager
1401 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1402 editor
1403 .scroll_manager
1404 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1405 });
1406 }
1407
1408 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1409
1410 let track_bounds = axis_pair(
1411 axes.horizontal.then(|| {
1412 Bounds::from_corners(
1413 point(
1414 text_bounds.bottom_left().x,
1415 text_bounds.bottom_left().y - self.style.scrollbar_width,
1416 ),
1417 point(
1418 text_bounds.bottom_right().x
1419 - if axes.vertical {
1420 self.style.scrollbar_width
1421 } else {
1422 px(0.)
1423 },
1424 text_bounds.bottom_right().y,
1425 ),
1426 )
1427 }),
1428 axes.vertical.then(|| {
1429 Bounds::from_corners(
1430 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1431 text_bounds.bottom_right(),
1432 )
1433 }),
1434 );
1435
1436 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1437 let total_text_units = axis_pair(
1438 Some(scroll_range_size.width / letter_size.width),
1439 Some(scroll_range_size.height / letter_size.height),
1440 );
1441
1442 let thumb_size = axis_pair(
1443 total_text_units
1444 .horizontal
1445 .zip(track_bounds.horizontal)
1446 .and_then(|(total_text_units_x, track_bounds_x)| {
1447 if text_units_per_page.horizontal >= total_text_units_x {
1448 return None;
1449 }
1450 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1451 return Some(track_bounds_x.size.width);
1452 }
1453 let thumb_size = track_bounds_x.size.width
1454 * (text_units_per_page.horizontal / total_text_units_x);
1455 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1456 }),
1457 total_text_units.vertical.zip(track_bounds.vertical).map(
1458 |(total_text_units_y, track_bounds_y)| {
1459 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1460 return track_bounds_y.size.height;
1461 }
1462 let thumb_size = track_bounds_y.size.height
1463 * (text_units_per_page.vertical / total_text_units_y);
1464 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1465 },
1466 ),
1467 );
1468
1469 // NOTE: Space not taken by track bounds divided by text units not on screen
1470 let text_unit_size = axis_pair(
1471 thumb_size
1472 .horizontal
1473 .zip(track_bounds.horizontal)
1474 .zip(total_text_units.horizontal)
1475 .map(|((thumb_size, track_bounds), total_text_units)| {
1476 (track_bounds.size.width - thumb_size)
1477 / (total_text_units - text_units_per_page.horizontal).max(0.)
1478 }),
1479 thumb_size
1480 .vertical
1481 .zip(track_bounds.vertical)
1482 .zip(total_text_units.vertical)
1483 .map(|((thumb_size, track_bounds), total_text_units)| {
1484 (track_bounds.size.height - thumb_size)
1485 / (total_text_units - text_units_per_page.vertical).max(0.)
1486 }),
1487 );
1488
1489 let horizontal_scrollbar = track_bounds
1490 .horizontal
1491 .zip(visible_range.horizontal)
1492 .zip(text_unit_size.horizontal)
1493 .zip(thumb_size.horizontal)
1494 .map(
1495 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1496 hitbox: window.insert_hitbox(track_bounds, false),
1497 visible_range,
1498 text_unit_size,
1499 visible: show_scrollbars,
1500 thumb_size,
1501 axis: Axis::Horizontal,
1502 },
1503 );
1504
1505 let vertical_scrollbar = track_bounds
1506 .vertical
1507 .zip(visible_range.vertical)
1508 .zip(text_unit_size.vertical)
1509 .zip(thumb_size.vertical)
1510 .map(
1511 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1512 hitbox: window.insert_hitbox(track_bounds, false),
1513 visible_range,
1514 text_unit_size,
1515 visible: show_scrollbars,
1516 thumb_size,
1517 axis: Axis::Vertical,
1518 },
1519 );
1520
1521 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1522 }
1523
1524 fn prepaint_crease_toggles(
1525 &self,
1526 crease_toggles: &mut [Option<AnyElement>],
1527 line_height: Pixels,
1528 gutter_dimensions: &GutterDimensions,
1529 gutter_settings: crate::editor_settings::Gutter,
1530 scroll_pixel_position: gpui::Point<Pixels>,
1531 gutter_hitbox: &Hitbox,
1532 window: &mut Window,
1533 cx: &mut App,
1534 ) {
1535 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1536 if let Some(crease_toggle) = crease_toggle {
1537 debug_assert!(gutter_settings.folds);
1538 let available_space = size(
1539 AvailableSpace::MinContent,
1540 AvailableSpace::Definite(line_height * 0.55),
1541 );
1542 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1543
1544 let position = point(
1545 gutter_dimensions.width - gutter_dimensions.right_padding,
1546 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1547 );
1548 let centering_offset = point(
1549 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1550 (line_height - crease_toggle_size.height) / 2.,
1551 );
1552 let origin = gutter_hitbox.origin + position + centering_offset;
1553 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1554 }
1555 }
1556 }
1557
1558 fn prepaint_expand_toggles(
1559 &self,
1560 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1561 window: &mut Window,
1562 cx: &mut App,
1563 ) {
1564 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1565 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1566 expand_toggle.layout_as_root(available_space, window, cx);
1567 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1568 }
1569 }
1570
1571 fn prepaint_crease_trailers(
1572 &self,
1573 trailers: Vec<Option<AnyElement>>,
1574 lines: &[LineWithInvisibles],
1575 line_height: Pixels,
1576 content_origin: gpui::Point<Pixels>,
1577 scroll_pixel_position: gpui::Point<Pixels>,
1578 em_width: Pixels,
1579 window: &mut Window,
1580 cx: &mut App,
1581 ) -> Vec<Option<CreaseTrailerLayout>> {
1582 trailers
1583 .into_iter()
1584 .enumerate()
1585 .map(|(ix, element)| {
1586 let mut element = element?;
1587 let available_space = size(
1588 AvailableSpace::MinContent,
1589 AvailableSpace::Definite(line_height),
1590 );
1591 let size = element.layout_as_root(available_space, window, cx);
1592
1593 let line = &lines[ix];
1594 let padding = if line.width == Pixels::ZERO {
1595 Pixels::ZERO
1596 } else {
1597 4. * em_width
1598 };
1599 let position = point(
1600 scroll_pixel_position.x + line.width + padding,
1601 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1602 );
1603 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1604 let origin = content_origin + position + centering_offset;
1605 element.prepaint_as_root(origin, available_space, window, cx);
1606 Some(CreaseTrailerLayout {
1607 element,
1608 bounds: Bounds::new(origin, size),
1609 })
1610 })
1611 .collect()
1612 }
1613
1614 // Folds contained in a hunk are ignored apart from shrinking visual size
1615 // If a fold contains any hunks then that fold line is marked as modified
1616 fn layout_gutter_diff_hunks(
1617 &self,
1618 line_height: Pixels,
1619 gutter_hitbox: &Hitbox,
1620 display_rows: Range<DisplayRow>,
1621 snapshot: &EditorSnapshot,
1622 window: &mut Window,
1623 cx: &mut App,
1624 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1625 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1626 let mut display_hunks = snapshot
1627 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1628 .map(|hunk| (hunk, None))
1629 .collect::<Vec<_>>();
1630 let git_gutter_setting = ProjectSettings::get_global(cx)
1631 .git
1632 .git_gutter
1633 .unwrap_or_default();
1634 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1635 for (hunk, hitbox) in &mut display_hunks {
1636 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1637 let hunk_bounds =
1638 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1639 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1640 }
1641 }
1642 }
1643
1644 display_hunks
1645 }
1646
1647 fn layout_inline_diagnostics(
1648 &self,
1649 line_layouts: &[LineWithInvisibles],
1650 crease_trailers: &[Option<CreaseTrailerLayout>],
1651 content_origin: gpui::Point<Pixels>,
1652 scroll_pixel_position: gpui::Point<Pixels>,
1653 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1654 start_row: DisplayRow,
1655 end_row: DisplayRow,
1656 line_height: Pixels,
1657 em_width: Pixels,
1658 style: &EditorStyle,
1659 window: &mut Window,
1660 cx: &mut App,
1661 ) -> HashMap<DisplayRow, AnyElement> {
1662 let max_severity = ProjectSettings::get_global(cx)
1663 .diagnostics
1664 .inline
1665 .max_severity
1666 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1667 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1668 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1669 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1670 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1671 });
1672
1673 let active_diagnostics_group = self
1674 .editor
1675 .read(cx)
1676 .active_diagnostics
1677 .as_ref()
1678 .map(|active_diagnostics| active_diagnostics.group_id);
1679
1680 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1681 let snapshot = editor.snapshot(window, cx);
1682 editor
1683 .inline_diagnostics
1684 .iter()
1685 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1686 .filter(|(_, diagnostic)| match active_diagnostics_group {
1687 Some(active_diagnostics_group) => {
1688 // Active diagnostics are all shown in the editor already, no need to display them inline
1689 diagnostic.group_id != active_diagnostics_group
1690 }
1691 None => true,
1692 })
1693 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1694 .skip_while(|(point, _)| point.row() < start_row)
1695 .take_while(|(point, _)| point.row() < end_row)
1696 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1697 acc.entry(point.row())
1698 .or_insert_with(Vec::new)
1699 .push(diagnostic);
1700 acc
1701 })
1702 });
1703
1704 if diagnostics_by_rows.is_empty() {
1705 return HashMap::default();
1706 }
1707
1708 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1709 &DiagnosticSeverity::ERROR => Color::Error,
1710 &DiagnosticSeverity::WARNING => Color::Warning,
1711 &DiagnosticSeverity::INFORMATION => Color::Info,
1712 &DiagnosticSeverity::HINT => Color::Hint,
1713 _ => Color::Error,
1714 };
1715
1716 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1717 let min_x = ProjectSettings::get_global(cx)
1718 .diagnostics
1719 .inline
1720 .min_column as f32
1721 * em_width;
1722
1723 let mut elements = HashMap::default();
1724 for (row, mut diagnostics) in diagnostics_by_rows {
1725 diagnostics.sort_by_key(|diagnostic| {
1726 (
1727 diagnostic.severity,
1728 std::cmp::Reverse(diagnostic.is_primary),
1729 diagnostic.start.row,
1730 diagnostic.start.column,
1731 )
1732 });
1733
1734 let Some(diagnostic_to_render) = diagnostics
1735 .iter()
1736 .find(|diagnostic| diagnostic.is_primary)
1737 .or_else(|| diagnostics.first())
1738 else {
1739 continue;
1740 };
1741
1742 let pos_y = content_origin.y
1743 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1744
1745 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1746 let pos_x = {
1747 let crease_trailer_layout = &crease_trailers[window_ix];
1748 let line_layout = &line_layouts[window_ix];
1749
1750 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1751 crease_trailer.bounds.right()
1752 } else {
1753 content_origin.x - scroll_pixel_position.x + line_layout.width
1754 };
1755
1756 let padded_line = line_end + padding;
1757 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1758
1759 cmp::max(padded_line, min_start)
1760 };
1761
1762 let behind_inline_completion_popover = inline_completion_popover_origin
1763 .as_ref()
1764 .map_or(false, |inline_completion_popover_origin| {
1765 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1766 });
1767 let opacity = if behind_inline_completion_popover {
1768 0.5
1769 } else {
1770 1.0
1771 };
1772
1773 let mut element = h_flex()
1774 .id(("diagnostic", row.0))
1775 .h(line_height)
1776 .w_full()
1777 .px_1()
1778 .rounded_xs()
1779 .opacity(opacity)
1780 .bg(severity_to_color(&diagnostic_to_render.severity)
1781 .color(cx)
1782 .opacity(0.05))
1783 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1784 .text_sm()
1785 .font_family(style.text.font().family)
1786 .child(diagnostic_to_render.message.clone())
1787 .into_any();
1788
1789 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1790
1791 elements.insert(row, element);
1792 }
1793
1794 elements
1795 }
1796
1797 fn layout_inline_blame(
1798 &self,
1799 display_row: DisplayRow,
1800 row_info: &RowInfo,
1801 line_layout: &LineWithInvisibles,
1802 crease_trailer: Option<&CreaseTrailerLayout>,
1803 em_width: Pixels,
1804 content_origin: gpui::Point<Pixels>,
1805 scroll_pixel_position: gpui::Point<Pixels>,
1806 line_height: Pixels,
1807 window: &mut Window,
1808 cx: &mut App,
1809 ) -> Option<AnyElement> {
1810 if !self
1811 .editor
1812 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1813 {
1814 return None;
1815 }
1816
1817 let editor = self.editor.read(cx);
1818 let blame = editor.blame.clone()?;
1819 let padding = {
1820 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1821 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1822
1823 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1824
1825 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1826 match &inline_completion.completion {
1827 InlineCompletion::Edit {
1828 display_mode: EditDisplayMode::TabAccept,
1829 ..
1830 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1831 _ => {}
1832 }
1833 }
1834
1835 padding * em_width
1836 };
1837
1838 let blame_entry = blame
1839 .update(cx, |blame, cx| {
1840 blame.blame_for_rows(&[*row_info], cx).next()
1841 })
1842 .flatten()?;
1843
1844 let mut element =
1845 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1846
1847 let start_y = content_origin.y
1848 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1849
1850 let start_x = {
1851 let line_end = if let Some(crease_trailer) = crease_trailer {
1852 crease_trailer.bounds.right()
1853 } else {
1854 content_origin.x - scroll_pixel_position.x + line_layout.width
1855 };
1856
1857 let padded_line_end = line_end + padding;
1858
1859 let min_column_in_pixels = ProjectSettings::get_global(cx)
1860 .git
1861 .inline_blame
1862 .and_then(|settings| settings.min_column)
1863 .map(|col| self.column_pixels(col as usize, window, cx))
1864 .unwrap_or(px(0.));
1865 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1866
1867 cmp::max(padded_line_end, min_start)
1868 };
1869
1870 let absolute_offset = point(start_x, start_y);
1871 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1872
1873 Some(element)
1874 }
1875
1876 fn layout_blame_entries(
1877 &self,
1878 buffer_rows: &[RowInfo],
1879 em_width: Pixels,
1880 scroll_position: gpui::Point<f32>,
1881 line_height: Pixels,
1882 gutter_hitbox: &Hitbox,
1883 max_width: Option<Pixels>,
1884 window: &mut Window,
1885 cx: &mut App,
1886 ) -> Option<Vec<AnyElement>> {
1887 if !self
1888 .editor
1889 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1890 {
1891 return None;
1892 }
1893
1894 let blame = self.editor.read(cx).blame.clone()?;
1895 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1896 blame.blame_for_rows(buffer_rows, cx).collect()
1897 });
1898
1899 let width = if let Some(max_width) = max_width {
1900 AvailableSpace::Definite(max_width)
1901 } else {
1902 AvailableSpace::MaxContent
1903 };
1904 let scroll_top = scroll_position.y * line_height;
1905 let start_x = em_width;
1906
1907 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1908
1909 let shaped_lines = blamed_rows
1910 .into_iter()
1911 .enumerate()
1912 .flat_map(|(ix, blame_entry)| {
1913 if let Some(blame_entry) = blame_entry {
1914 let mut element = render_blame_entry(
1915 ix,
1916 &blame,
1917 blame_entry,
1918 &self.style,
1919 &mut last_used_color,
1920 self.editor.clone(),
1921 cx,
1922 );
1923
1924 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1925 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1926
1927 element.prepaint_as_root(
1928 absolute_offset,
1929 size(width, AvailableSpace::MinContent),
1930 window,
1931 cx,
1932 );
1933
1934 Some(element)
1935 } else {
1936 None
1937 }
1938 })
1939 .collect();
1940
1941 Some(shaped_lines)
1942 }
1943
1944 fn layout_indent_guides(
1945 &self,
1946 content_origin: gpui::Point<Pixels>,
1947 text_origin: gpui::Point<Pixels>,
1948 visible_buffer_range: Range<MultiBufferRow>,
1949 scroll_pixel_position: gpui::Point<Pixels>,
1950 line_height: Pixels,
1951 snapshot: &DisplaySnapshot,
1952 window: &mut Window,
1953 cx: &mut App,
1954 ) -> Option<Vec<IndentGuideLayout>> {
1955 let indent_guides = self.editor.update(cx, |editor, cx| {
1956 editor.indent_guides(visible_buffer_range, snapshot, cx)
1957 })?;
1958
1959 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1960 editor
1961 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1962 .unwrap_or_default()
1963 });
1964
1965 Some(
1966 indent_guides
1967 .into_iter()
1968 .enumerate()
1969 .filter_map(|(i, indent_guide)| {
1970 let single_indent_width =
1971 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1972 let total_width = single_indent_width * indent_guide.depth as f32;
1973 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1974 if start_x >= text_origin.x {
1975 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1976 indent_guide.start_row..indent_guide.end_row,
1977 line_height,
1978 snapshot,
1979 );
1980
1981 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1982
1983 Some(IndentGuideLayout {
1984 origin: point(start_x, start_y),
1985 length,
1986 single_indent_width,
1987 depth: indent_guide.depth,
1988 active: active_indent_guide_indices.contains(&i),
1989 settings: indent_guide.settings,
1990 })
1991 } else {
1992 None
1993 }
1994 })
1995 .collect(),
1996 )
1997 }
1998
1999 fn calculate_indent_guide_bounds(
2000 row_range: Range<MultiBufferRow>,
2001 line_height: Pixels,
2002 snapshot: &DisplaySnapshot,
2003 ) -> (gpui::Pixels, gpui::Pixels) {
2004 let start_point = Point::new(row_range.start.0, 0);
2005 let end_point = Point::new(row_range.end.0, 0);
2006
2007 let row_range = start_point.to_display_point(snapshot).row()
2008 ..end_point.to_display_point(snapshot).row();
2009
2010 let mut prev_line = start_point;
2011 prev_line.row = prev_line.row.saturating_sub(1);
2012 let prev_line = prev_line.to_display_point(snapshot).row();
2013
2014 let mut cons_line = end_point;
2015 cons_line.row += 1;
2016 let cons_line = cons_line.to_display_point(snapshot).row();
2017
2018 let mut offset_y = row_range.start.0 as f32 * line_height;
2019 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2020
2021 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2022 if row_range.end == cons_line {
2023 length += line_height;
2024 }
2025
2026 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2027 // we want to extend the indent guide to the start of the block.
2028 let mut block_height = 0;
2029 let mut block_offset = 0;
2030 let mut found_excerpt_header = false;
2031 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2032 if matches!(block, Block::ExcerptBoundary { .. }) {
2033 found_excerpt_header = true;
2034 break;
2035 }
2036 block_offset += block.height();
2037 block_height += block.height();
2038 }
2039 if !found_excerpt_header {
2040 offset_y -= block_offset as f32 * line_height;
2041 length += block_height as f32 * line_height;
2042 }
2043
2044 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2045 // we want to ensure that the indent guide stops before the excerpt header.
2046 let mut block_height = 0;
2047 let mut found_excerpt_header = false;
2048 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2049 if matches!(block, Block::ExcerptBoundary { .. }) {
2050 found_excerpt_header = true;
2051 }
2052 block_height += block.height();
2053 }
2054 if found_excerpt_header {
2055 length -= block_height as f32 * line_height;
2056 }
2057
2058 (offset_y, length)
2059 }
2060
2061 fn layout_breakpoints(
2062 &self,
2063 line_height: Pixels,
2064 range: Range<DisplayRow>,
2065 scroll_pixel_position: gpui::Point<Pixels>,
2066 gutter_dimensions: &GutterDimensions,
2067 gutter_hitbox: &Hitbox,
2068 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2069 snapshot: &EditorSnapshot,
2070 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
2071 row_infos: &[RowInfo],
2072 window: &mut Window,
2073 cx: &mut App,
2074 ) -> Vec<AnyElement> {
2075 self.editor.update(cx, |editor, cx| {
2076 breakpoints
2077 .into_iter()
2078 .filter_map(|(display_row, (text_anchor, bp))| {
2079 let row = MultiBufferRow { 0: display_row.0 };
2080
2081 if row_infos
2082 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2083 .is_some_and(|row_info| row_info.expand_info.is_some())
2084 {
2085 return None;
2086 }
2087
2088 if range.start > display_row || range.end < display_row {
2089 return None;
2090 }
2091
2092 if snapshot.is_line_folded(row) {
2093 return None;
2094 }
2095
2096 let button = editor.render_breakpoint(text_anchor, display_row, &bp.kind, cx);
2097
2098 let button = prepaint_gutter_button(
2099 button,
2100 display_row,
2101 line_height,
2102 gutter_dimensions,
2103 scroll_pixel_position,
2104 gutter_hitbox,
2105 display_hunks,
2106 window,
2107 cx,
2108 );
2109 Some(button)
2110 })
2111 .collect_vec()
2112 })
2113 }
2114
2115 #[allow(clippy::too_many_arguments)]
2116 fn layout_run_indicators(
2117 &self,
2118 line_height: Pixels,
2119 range: Range<DisplayRow>,
2120 row_infos: &[RowInfo],
2121 scroll_pixel_position: gpui::Point<Pixels>,
2122 gutter_dimensions: &GutterDimensions,
2123 gutter_hitbox: &Hitbox,
2124 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2125 snapshot: &EditorSnapshot,
2126 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2127 window: &mut Window,
2128 cx: &mut App,
2129 ) -> Vec<AnyElement> {
2130 self.editor.update(cx, |editor, cx| {
2131 let active_task_indicator_row =
2132 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2133 deployed_from_indicator,
2134 actions,
2135 ..
2136 })) = editor.context_menu.borrow().as_ref()
2137 {
2138 actions
2139 .tasks
2140 .as_ref()
2141 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2142 .or(*deployed_from_indicator)
2143 } else {
2144 None
2145 };
2146
2147 let offset_range_start =
2148 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2149
2150 let offset_range_end =
2151 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2152
2153 editor
2154 .tasks
2155 .iter()
2156 .filter_map(|(_, tasks)| {
2157 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2158 if multibuffer_point < offset_range_start
2159 || multibuffer_point > offset_range_end
2160 {
2161 return None;
2162 }
2163 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2164 let buffer_folded = snapshot
2165 .buffer_snapshot
2166 .buffer_line_for_row(multibuffer_row)
2167 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2168 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2169 .unwrap_or(false);
2170 if buffer_folded {
2171 return None;
2172 }
2173
2174 if snapshot.is_line_folded(multibuffer_row) {
2175 // Skip folded indicators, unless it's the starting line of a fold.
2176 if multibuffer_row
2177 .0
2178 .checked_sub(1)
2179 .map_or(false, |previous_row| {
2180 snapshot.is_line_folded(MultiBufferRow(previous_row))
2181 })
2182 {
2183 return None;
2184 }
2185 }
2186
2187 let display_row = multibuffer_point.to_display_point(snapshot).row();
2188 if row_infos
2189 .get((display_row - range.start).0 as usize)
2190 .is_some_and(|row_info| row_info.expand_info.is_some())
2191 {
2192 return None;
2193 }
2194 let button = editor.render_run_indicator(
2195 &self.style,
2196 Some(display_row) == active_task_indicator_row,
2197 display_row,
2198 breakpoints.remove(&display_row),
2199 cx,
2200 );
2201
2202 let button = prepaint_gutter_button(
2203 button,
2204 display_row,
2205 line_height,
2206 gutter_dimensions,
2207 scroll_pixel_position,
2208 gutter_hitbox,
2209 display_hunks,
2210 window,
2211 cx,
2212 );
2213 Some(button)
2214 })
2215 .collect_vec()
2216 })
2217 }
2218
2219 fn layout_expand_toggles(
2220 &self,
2221 gutter_hitbox: &Hitbox,
2222 gutter_dimensions: GutterDimensions,
2223 em_width: Pixels,
2224 line_height: Pixels,
2225 scroll_position: gpui::Point<f32>,
2226 buffer_rows: &[RowInfo],
2227 window: &mut Window,
2228 cx: &mut App,
2229 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2230 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2231
2232 let scroll_top = scroll_position.y * line_height;
2233
2234 let max_line_number_length = self
2235 .editor
2236 .read(cx)
2237 .buffer()
2238 .read(cx)
2239 .snapshot(cx)
2240 .widest_line_number()
2241 .ilog10()
2242 + 1;
2243
2244 let elements = buffer_rows
2245 .into_iter()
2246 .enumerate()
2247 .map(|(ix, row_info)| {
2248 let ExpandInfo {
2249 excerpt_id,
2250 direction,
2251 } = row_info.expand_info?;
2252
2253 let icon_name = match direction {
2254 ExpandExcerptDirection::Up => IconName::ExpandUp,
2255 ExpandExcerptDirection::Down => IconName::ExpandDown,
2256 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2257 };
2258
2259 let git_gutter_width = Self::gutter_strip_width(line_height);
2260 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2261
2262 let editor = self.editor.clone();
2263 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2264 && row_info
2265 .buffer_row
2266 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2267 || gutter_dimensions.right_padding == px(0.);
2268
2269 let width = if is_wide {
2270 available_width - px(2.)
2271 } else {
2272 available_width + em_width - px(2.)
2273 };
2274
2275 let toggle = IconButton::new(("expand", ix), icon_name)
2276 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2277 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2278 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2279 .width(width.into())
2280 .on_click(move |_, window, cx| {
2281 editor.update(cx, |editor, cx| {
2282 editor.expand_excerpt(excerpt_id, direction, window, cx);
2283 });
2284 })
2285 .tooltip(Tooltip::for_action_title(
2286 "Expand Excerpt",
2287 &crate::actions::ExpandExcerpts::default(),
2288 ))
2289 .into_any_element();
2290
2291 let position = point(
2292 git_gutter_width + px(1.),
2293 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2294 );
2295 let origin = gutter_hitbox.origin + position;
2296
2297 Some((toggle, origin))
2298 })
2299 .collect();
2300
2301 elements
2302 }
2303
2304 fn layout_code_actions_indicator(
2305 &self,
2306 line_height: Pixels,
2307 newest_selection_head: DisplayPoint,
2308 scroll_pixel_position: gpui::Point<Pixels>,
2309 gutter_dimensions: &GutterDimensions,
2310 gutter_hitbox: &Hitbox,
2311 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2312 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2313 window: &mut Window,
2314 cx: &mut App,
2315 ) -> Option<AnyElement> {
2316 let mut active = false;
2317 let mut button = None;
2318 let row = newest_selection_head.row();
2319 self.editor.update(cx, |editor, cx| {
2320 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2321 deployed_from_indicator,
2322 ..
2323 })) = editor.context_menu.borrow().as_ref()
2324 {
2325 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2326 };
2327
2328 let breakpoint = breakpoint_points.get(&row);
2329 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2330 });
2331
2332 let button = button?;
2333 breakpoint_points.remove(&row);
2334
2335 let button = prepaint_gutter_button(
2336 button,
2337 row,
2338 line_height,
2339 gutter_dimensions,
2340 scroll_pixel_position,
2341 gutter_hitbox,
2342 display_hunks,
2343 window,
2344 cx,
2345 );
2346
2347 Some(button)
2348 }
2349
2350 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2351 if let Some(index) = participant_index {
2352 cx.theme().players().color_for_participant(index.0)
2353 } else {
2354 cx.theme().players().absent()
2355 }
2356 }
2357
2358 fn calculate_relative_line_numbers(
2359 &self,
2360 snapshot: &EditorSnapshot,
2361 rows: &Range<DisplayRow>,
2362 relative_to: Option<DisplayRow>,
2363 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2364 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2365 let Some(relative_to) = relative_to else {
2366 return relative_rows;
2367 };
2368
2369 let start = rows.start.min(relative_to);
2370 let end = rows.end.max(relative_to);
2371
2372 let buffer_rows = snapshot
2373 .row_infos(start)
2374 .take(1 + end.minus(start) as usize)
2375 .collect::<Vec<_>>();
2376
2377 let head_idx = relative_to.minus(start);
2378 let mut delta = 1;
2379 let mut i = head_idx + 1;
2380 while i < buffer_rows.len() as u32 {
2381 if buffer_rows[i as usize].buffer_row.is_some() {
2382 if rows.contains(&DisplayRow(i + start.0)) {
2383 relative_rows.insert(DisplayRow(i + start.0), delta);
2384 }
2385 delta += 1;
2386 }
2387 i += 1;
2388 }
2389 delta = 1;
2390 i = head_idx.min(buffer_rows.len() as u32 - 1);
2391 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2392 i -= 1;
2393 }
2394
2395 while i > 0 {
2396 i -= 1;
2397 if buffer_rows[i as usize].buffer_row.is_some() {
2398 if rows.contains(&DisplayRow(i + start.0)) {
2399 relative_rows.insert(DisplayRow(i + start.0), delta);
2400 }
2401 delta += 1;
2402 }
2403 }
2404
2405 relative_rows
2406 }
2407
2408 fn layout_line_numbers(
2409 &self,
2410 gutter_hitbox: Option<&Hitbox>,
2411 gutter_dimensions: GutterDimensions,
2412 line_height: Pixels,
2413 scroll_position: gpui::Point<f32>,
2414 rows: Range<DisplayRow>,
2415 buffer_rows: &[RowInfo],
2416 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2417 newest_selection_head: Option<DisplayPoint>,
2418 snapshot: &EditorSnapshot,
2419 window: &mut Window,
2420 cx: &mut App,
2421 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2422 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2423 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2424 });
2425 if !include_line_numbers {
2426 return Arc::default();
2427 }
2428
2429 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2430 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2431 let newest = editor.selections.newest::<Point>(cx);
2432 SelectionLayout::new(
2433 newest,
2434 editor.selections.line_mode,
2435 editor.cursor_shape,
2436 &snapshot.display_snapshot,
2437 true,
2438 true,
2439 None,
2440 )
2441 .head
2442 });
2443 let is_relative = editor.should_use_relative_line_numbers(cx);
2444 (newest_selection_head, is_relative)
2445 });
2446
2447 let relative_to = if is_relative {
2448 Some(newest_selection_head.row())
2449 } else {
2450 None
2451 };
2452 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2453 let mut line_number = String::new();
2454 let line_numbers = buffer_rows
2455 .into_iter()
2456 .enumerate()
2457 .flat_map(|(ix, row_info)| {
2458 let display_row = DisplayRow(rows.start.0 + ix as u32);
2459 line_number.clear();
2460 let non_relative_number = row_info.buffer_row? + 1;
2461 let number = relative_rows
2462 .get(&display_row)
2463 .unwrap_or(&non_relative_number);
2464 write!(&mut line_number, "{number}").unwrap();
2465 if row_info
2466 .diff_status
2467 .is_some_and(|status| status.is_deleted())
2468 {
2469 return None;
2470 }
2471
2472 let color = active_rows
2473 .get(&display_row)
2474 .and_then(|spec| {
2475 if spec.breakpoint {
2476 Some(cx.theme().colors().debugger_accent)
2477 } else if spec.selection {
2478 Some(cx.theme().colors().editor_active_line_number)
2479 } else {
2480 None
2481 }
2482 })
2483 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2484 let shaped_line = self
2485 .shape_line_number(SharedString::from(&line_number), color, window)
2486 .log_err()?;
2487 let scroll_top = scroll_position.y * line_height;
2488 let line_origin = gutter_hitbox.map(|hitbox| {
2489 hitbox.origin
2490 + point(
2491 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2492 ix as f32 * line_height - (scroll_top % line_height),
2493 )
2494 });
2495
2496 #[cfg(not(test))]
2497 let hitbox = line_origin.map(|line_origin| {
2498 window.insert_hitbox(
2499 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2500 false,
2501 )
2502 });
2503 #[cfg(test)]
2504 let hitbox = {
2505 let _ = line_origin;
2506 None
2507 };
2508
2509 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2510 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2511 let line_number = LineNumberLayout {
2512 shaped_line,
2513 hitbox,
2514 };
2515 Some((multi_buffer_row, line_number))
2516 })
2517 .collect();
2518 Arc::new(line_numbers)
2519 }
2520
2521 fn layout_crease_toggles(
2522 &self,
2523 rows: Range<DisplayRow>,
2524 row_infos: &[RowInfo],
2525 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2526 snapshot: &EditorSnapshot,
2527 window: &mut Window,
2528 cx: &mut App,
2529 ) -> Vec<Option<AnyElement>> {
2530 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2531 && snapshot.mode == EditorMode::Full
2532 && self.editor.read(cx).is_singleton(cx);
2533 if include_fold_statuses {
2534 row_infos
2535 .into_iter()
2536 .enumerate()
2537 .map(|(ix, info)| {
2538 if info.expand_info.is_some() {
2539 return None;
2540 }
2541 let row = info.multibuffer_row?;
2542 let display_row = DisplayRow(rows.start.0 + ix as u32);
2543 let active = active_rows.contains_key(&display_row);
2544
2545 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2546 })
2547 .collect()
2548 } else {
2549 Vec::new()
2550 }
2551 }
2552
2553 fn layout_crease_trailers(
2554 &self,
2555 buffer_rows: impl IntoIterator<Item = RowInfo>,
2556 snapshot: &EditorSnapshot,
2557 window: &mut Window,
2558 cx: &mut App,
2559 ) -> Vec<Option<AnyElement>> {
2560 buffer_rows
2561 .into_iter()
2562 .map(|row_info| {
2563 if row_info.expand_info.is_some() {
2564 return None;
2565 }
2566 if let Some(row) = row_info.multibuffer_row {
2567 snapshot.render_crease_trailer(row, window, cx)
2568 } else {
2569 None
2570 }
2571 })
2572 .collect()
2573 }
2574
2575 fn layout_lines(
2576 rows: Range<DisplayRow>,
2577 snapshot: &EditorSnapshot,
2578 style: &EditorStyle,
2579 editor_width: Pixels,
2580 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2581 window: &mut Window,
2582 cx: &mut App,
2583 ) -> Vec<LineWithInvisibles> {
2584 if rows.start >= rows.end {
2585 return Vec::new();
2586 }
2587
2588 // Show the placeholder when the editor is empty
2589 if snapshot.is_empty() {
2590 let font_size = style.text.font_size.to_pixels(window.rem_size());
2591 let placeholder_color = cx.theme().colors().text_placeholder;
2592 let placeholder_text = snapshot.placeholder_text();
2593
2594 let placeholder_lines = placeholder_text
2595 .as_ref()
2596 .map_or("", AsRef::as_ref)
2597 .split('\n')
2598 .skip(rows.start.0 as usize)
2599 .chain(iter::repeat(""))
2600 .take(rows.len());
2601 placeholder_lines
2602 .filter_map(move |line| {
2603 let run = TextRun {
2604 len: line.len(),
2605 font: style.text.font(),
2606 color: placeholder_color,
2607 background_color: None,
2608 underline: Default::default(),
2609 strikethrough: None,
2610 };
2611 window
2612 .text_system()
2613 .shape_line(line.to_string().into(), font_size, &[run])
2614 .log_err()
2615 })
2616 .map(|line| LineWithInvisibles {
2617 width: line.width,
2618 len: line.len,
2619 fragments: smallvec![LineFragment::Text(line)],
2620 invisibles: Vec::new(),
2621 font_size,
2622 })
2623 .collect()
2624 } else {
2625 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2626 LineWithInvisibles::from_chunks(
2627 chunks,
2628 &style,
2629 MAX_LINE_LEN,
2630 rows.len(),
2631 snapshot.mode,
2632 editor_width,
2633 is_row_soft_wrapped,
2634 window,
2635 cx,
2636 )
2637 }
2638 }
2639
2640 fn prepaint_lines(
2641 &self,
2642 start_row: DisplayRow,
2643 line_layouts: &mut [LineWithInvisibles],
2644 line_height: Pixels,
2645 scroll_pixel_position: gpui::Point<Pixels>,
2646 content_origin: gpui::Point<Pixels>,
2647 window: &mut Window,
2648 cx: &mut App,
2649 ) -> SmallVec<[AnyElement; 1]> {
2650 let mut line_elements = SmallVec::new();
2651 for (ix, line) in line_layouts.iter_mut().enumerate() {
2652 let row = start_row + DisplayRow(ix as u32);
2653 line.prepaint(
2654 line_height,
2655 scroll_pixel_position,
2656 row,
2657 content_origin,
2658 &mut line_elements,
2659 window,
2660 cx,
2661 );
2662 }
2663 line_elements
2664 }
2665
2666 fn render_block(
2667 &self,
2668 block: &Block,
2669 available_width: AvailableSpace,
2670 block_id: BlockId,
2671 block_row_start: DisplayRow,
2672 snapshot: &EditorSnapshot,
2673 text_x: Pixels,
2674 rows: &Range<DisplayRow>,
2675 line_layouts: &[LineWithInvisibles],
2676 gutter_dimensions: &GutterDimensions,
2677 line_height: Pixels,
2678 em_width: Pixels,
2679 text_hitbox: &Hitbox,
2680 editor_width: Pixels,
2681 scroll_width: &mut Pixels,
2682 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2683 selections: &[Selection<Point>],
2684 selected_buffer_ids: &Vec<BufferId>,
2685 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2686 sticky_header_excerpt_id: Option<ExcerptId>,
2687 window: &mut Window,
2688 cx: &mut App,
2689 ) -> (AnyElement, Size<Pixels>) {
2690 let mut element = match block {
2691 Block::Custom(block) => {
2692 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2693 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2694 let align_to = block_start.to_display_point(snapshot);
2695 let anchor_x = text_x
2696 + if rows.contains(&align_to.row()) {
2697 line_layouts[align_to.row().minus(rows.start) as usize]
2698 .x_for_index(align_to.column() as usize)
2699 } else {
2700 layout_line(
2701 align_to.row(),
2702 snapshot,
2703 &self.style,
2704 editor_width,
2705 is_row_soft_wrapped,
2706 window,
2707 cx,
2708 )
2709 .x_for_index(align_to.column() as usize)
2710 };
2711
2712 let selected = selections
2713 .binary_search_by(|selection| {
2714 if selection.end <= block_start {
2715 Ordering::Less
2716 } else if selection.start >= block_end {
2717 Ordering::Greater
2718 } else {
2719 Ordering::Equal
2720 }
2721 })
2722 .is_ok();
2723
2724 div()
2725 .size_full()
2726 .child(block.render(&mut BlockContext {
2727 window,
2728 app: cx,
2729 anchor_x,
2730 gutter_dimensions,
2731 line_height,
2732 em_width,
2733 block_id,
2734 selected,
2735 max_width: text_hitbox.size.width.max(*scroll_width),
2736 editor_style: &self.style,
2737 }))
2738 .into_any()
2739 }
2740
2741 Block::FoldedBuffer {
2742 first_excerpt,
2743 height,
2744 ..
2745 } => {
2746 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2747 let result = v_flex().id(block_id).w_full();
2748
2749 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2750 result
2751 .child(self.render_buffer_header(
2752 first_excerpt,
2753 true,
2754 selected,
2755 false,
2756 jump_data,
2757 window,
2758 cx,
2759 ))
2760 .into_any_element()
2761 }
2762
2763 Block::ExcerptBoundary {
2764 excerpt,
2765 height,
2766 starts_new_buffer,
2767 ..
2768 } => {
2769 let color = cx.theme().colors().clone();
2770 let mut result = v_flex().id(block_id).w_full();
2771
2772 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2773
2774 if *starts_new_buffer {
2775 if sticky_header_excerpt_id != Some(excerpt.id) {
2776 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2777
2778 result = result.child(self.render_buffer_header(
2779 excerpt, false, selected, false, jump_data, window, cx,
2780 ));
2781 } else {
2782 result =
2783 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2784 }
2785 } else {
2786 result = result.child(
2787 h_flex().relative().child(
2788 div()
2789 .top(line_height / 2.)
2790 .absolute()
2791 .w_full()
2792 .h_px()
2793 .bg(color.border_variant),
2794 ),
2795 );
2796 };
2797
2798 result.into_any()
2799 }
2800 };
2801
2802 // Discover the element's content height, then round up to the nearest multiple of line height.
2803 let preliminary_size = element.layout_as_root(
2804 size(available_width, AvailableSpace::MinContent),
2805 window,
2806 cx,
2807 );
2808 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2809 let final_size = if preliminary_size.height == quantized_height {
2810 preliminary_size
2811 } else {
2812 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2813 };
2814
2815 if let BlockId::Custom(custom_block_id) = block_id {
2816 if block.height() > 0 {
2817 let element_height_in_lines =
2818 ((final_size.height / line_height).ceil() as u32).max(1);
2819 if element_height_in_lines != block.height() {
2820 resized_blocks.insert(custom_block_id, element_height_in_lines);
2821 }
2822 }
2823 }
2824
2825 (element, final_size)
2826 }
2827
2828 fn render_buffer_header(
2829 &self,
2830 for_excerpt: &ExcerptInfo,
2831 is_folded: bool,
2832 is_selected: bool,
2833 is_sticky: bool,
2834 jump_data: JumpData,
2835 window: &mut Window,
2836 cx: &mut App,
2837 ) -> Div {
2838 let editor = self.editor.read(cx);
2839 let file_status = editor
2840 .buffer
2841 .read(cx)
2842 .all_diff_hunks_expanded()
2843 .then(|| {
2844 editor
2845 .project
2846 .as_ref()?
2847 .read(cx)
2848 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2849 })
2850 .flatten();
2851
2852 let include_root = editor
2853 .project
2854 .as_ref()
2855 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2856 .unwrap_or_default();
2857 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2858 let filename = path
2859 .as_ref()
2860 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2861 let parent_path = path.as_ref().and_then(|path| {
2862 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2863 });
2864 let focus_handle = editor.focus_handle(cx);
2865 let colors = cx.theme().colors();
2866
2867 div()
2868 .p_1()
2869 .w_full()
2870 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2871 .child(
2872 h_flex()
2873 .size_full()
2874 .gap_2()
2875 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2876 .pl_0p5()
2877 .pr_5()
2878 .rounded_sm()
2879 .when(is_sticky, |el| el.shadow_md())
2880 .border_1()
2881 .map(|div| {
2882 let border_color = if is_selected
2883 && is_folded
2884 && focus_handle.contains_focused(window, cx)
2885 {
2886 colors.border_focused
2887 } else {
2888 colors.border
2889 };
2890 div.border_color(border_color)
2891 })
2892 .bg(colors.editor_subheader_background)
2893 .hover(|style| style.bg(colors.element_hover))
2894 .map(|header| {
2895 let editor = self.editor.clone();
2896 let buffer_id = for_excerpt.buffer_id;
2897 let toggle_chevron_icon =
2898 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2899 header.child(
2900 div()
2901 .hover(|style| style.bg(colors.element_selected))
2902 .rounded_xs()
2903 .child(
2904 ButtonLike::new("toggle-buffer-fold")
2905 .style(ui::ButtonStyle::Transparent)
2906 .height(px(28.).into())
2907 .width(px(28.).into())
2908 .children(toggle_chevron_icon)
2909 .tooltip({
2910 let focus_handle = focus_handle.clone();
2911 move |window, cx| {
2912 Tooltip::for_action_in(
2913 "Toggle Excerpt Fold",
2914 &ToggleFold,
2915 &focus_handle,
2916 window,
2917 cx,
2918 )
2919 }
2920 })
2921 .on_click(move |_, _, cx| {
2922 if is_folded {
2923 editor.update(cx, |editor, cx| {
2924 editor.unfold_buffer(buffer_id, cx);
2925 });
2926 } else {
2927 editor.update(cx, |editor, cx| {
2928 editor.fold_buffer(buffer_id, cx);
2929 });
2930 }
2931 }),
2932 ),
2933 )
2934 })
2935 .children(
2936 editor
2937 .addons
2938 .values()
2939 .filter_map(|addon| {
2940 addon.render_buffer_header_controls(for_excerpt, window, cx)
2941 })
2942 .take(1),
2943 )
2944 .child(
2945 h_flex()
2946 .cursor_pointer()
2947 .id("path header block")
2948 .size_full()
2949 .justify_between()
2950 .child(
2951 h_flex()
2952 .gap_2()
2953 .child(
2954 Label::new(
2955 filename
2956 .map(SharedString::from)
2957 .unwrap_or_else(|| "untitled".into()),
2958 )
2959 .single_line()
2960 .when_some(
2961 file_status,
2962 |el, status| {
2963 el.color(if status.is_conflicted() {
2964 Color::Conflict
2965 } else if status.is_modified() {
2966 Color::Modified
2967 } else if status.is_deleted() {
2968 Color::Disabled
2969 } else {
2970 Color::Created
2971 })
2972 .when(status.is_deleted(), |el| el.strikethrough())
2973 },
2974 ),
2975 )
2976 .when_some(parent_path, |then, path| {
2977 then.child(div().child(path).text_color(
2978 if file_status.is_some_and(FileStatus::is_deleted) {
2979 colors.text_disabled
2980 } else {
2981 colors.text_muted
2982 },
2983 ))
2984 }),
2985 )
2986 .when(is_selected, |el| {
2987 el.child(
2988 h_flex()
2989 .id("jump-to-file-button")
2990 .gap_2p5()
2991 .child(Label::new("Jump To File"))
2992 .children(
2993 KeyBinding::for_action_in(
2994 &OpenExcerpts,
2995 &focus_handle,
2996 window,
2997 cx,
2998 )
2999 .map(|binding| binding.into_any_element()),
3000 ),
3001 )
3002 })
3003 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3004 .on_click(window.listener_for(&self.editor, {
3005 move |editor, e: &ClickEvent, window, cx| {
3006 editor.open_excerpts_common(
3007 Some(jump_data.clone()),
3008 e.down.modifiers.secondary(),
3009 window,
3010 cx,
3011 );
3012 }
3013 })),
3014 ),
3015 )
3016 }
3017
3018 fn render_blocks(
3019 &self,
3020 rows: Range<DisplayRow>,
3021 snapshot: &EditorSnapshot,
3022 hitbox: &Hitbox,
3023 text_hitbox: &Hitbox,
3024 editor_width: Pixels,
3025 scroll_width: &mut Pixels,
3026 gutter_dimensions: &GutterDimensions,
3027 em_width: Pixels,
3028 text_x: Pixels,
3029 line_height: Pixels,
3030 line_layouts: &[LineWithInvisibles],
3031 selections: &[Selection<Point>],
3032 selected_buffer_ids: &Vec<BufferId>,
3033 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3034 sticky_header_excerpt_id: Option<ExcerptId>,
3035 window: &mut Window,
3036 cx: &mut App,
3037 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
3038 let (fixed_blocks, non_fixed_blocks) = snapshot
3039 .blocks_in_range(rows.clone())
3040 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3041
3042 let mut focused_block = self
3043 .editor
3044 .update(cx, |editor, _| editor.take_focused_block());
3045 let mut fixed_block_max_width = Pixels::ZERO;
3046 let mut blocks = Vec::new();
3047 let mut resized_blocks = HashMap::default();
3048
3049 for (row, block) in fixed_blocks {
3050 let block_id = block.id();
3051
3052 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3053 focused_block = None;
3054 }
3055
3056 let (element, element_size) = self.render_block(
3057 block,
3058 AvailableSpace::MinContent,
3059 block_id,
3060 row,
3061 snapshot,
3062 text_x,
3063 &rows,
3064 line_layouts,
3065 gutter_dimensions,
3066 line_height,
3067 em_width,
3068 text_hitbox,
3069 editor_width,
3070 scroll_width,
3071 &mut resized_blocks,
3072 selections,
3073 selected_buffer_ids,
3074 is_row_soft_wrapped,
3075 sticky_header_excerpt_id,
3076 window,
3077 cx,
3078 );
3079 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3080 blocks.push(BlockLayout {
3081 id: block_id,
3082 row: Some(row),
3083 element,
3084 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3085 style: BlockStyle::Fixed,
3086 is_buffer_header: block.is_buffer_header(),
3087 });
3088 }
3089
3090 for (row, block) in non_fixed_blocks {
3091 let style = block.style();
3092 let width = match style {
3093 BlockStyle::Sticky => hitbox.size.width,
3094 BlockStyle::Flex => hitbox
3095 .size
3096 .width
3097 .max(fixed_block_max_width)
3098 .max(gutter_dimensions.width + *scroll_width),
3099 BlockStyle::Fixed => unreachable!(),
3100 };
3101 let block_id = block.id();
3102
3103 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3104 focused_block = None;
3105 }
3106
3107 let (element, element_size) = self.render_block(
3108 block,
3109 width.into(),
3110 block_id,
3111 row,
3112 snapshot,
3113 text_x,
3114 &rows,
3115 line_layouts,
3116 gutter_dimensions,
3117 line_height,
3118 em_width,
3119 text_hitbox,
3120 editor_width,
3121 scroll_width,
3122 &mut resized_blocks,
3123 selections,
3124 selected_buffer_ids,
3125 is_row_soft_wrapped,
3126 sticky_header_excerpt_id,
3127 window,
3128 cx,
3129 );
3130
3131 blocks.push(BlockLayout {
3132 id: block_id,
3133 row: Some(row),
3134 element,
3135 available_space: size(width.into(), element_size.height.into()),
3136 style,
3137 is_buffer_header: block.is_buffer_header(),
3138 });
3139 }
3140
3141 if let Some(focused_block) = focused_block {
3142 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3143 if focus_handle.is_focused(window) {
3144 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3145 let style = block.style();
3146 let width = match style {
3147 BlockStyle::Fixed => AvailableSpace::MinContent,
3148 BlockStyle::Flex => AvailableSpace::Definite(
3149 hitbox
3150 .size
3151 .width
3152 .max(fixed_block_max_width)
3153 .max(gutter_dimensions.width + *scroll_width),
3154 ),
3155 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3156 };
3157
3158 let (element, element_size) = self.render_block(
3159 &block,
3160 width,
3161 focused_block.id,
3162 rows.end,
3163 snapshot,
3164 text_x,
3165 &rows,
3166 line_layouts,
3167 gutter_dimensions,
3168 line_height,
3169 em_width,
3170 text_hitbox,
3171 editor_width,
3172 scroll_width,
3173 &mut resized_blocks,
3174 selections,
3175 selected_buffer_ids,
3176 is_row_soft_wrapped,
3177 sticky_header_excerpt_id,
3178 window,
3179 cx,
3180 );
3181
3182 blocks.push(BlockLayout {
3183 id: block.id(),
3184 row: None,
3185 element,
3186 available_space: size(width, element_size.height.into()),
3187 style,
3188 is_buffer_header: block.is_buffer_header(),
3189 });
3190 }
3191 }
3192 }
3193 }
3194
3195 if resized_blocks.is_empty() {
3196 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3197 Ok(blocks)
3198 } else {
3199 Err(resized_blocks)
3200 }
3201 }
3202
3203 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3204 /// a restart of rendering for the editor based on the new sizes.
3205 fn layout_blocks(
3206 &self,
3207 blocks: &mut Vec<BlockLayout>,
3208 block_starts: &mut HashSet<DisplayRow>,
3209 hitbox: &Hitbox,
3210 line_height: Pixels,
3211 scroll_pixel_position: gpui::Point<Pixels>,
3212 window: &mut Window,
3213 cx: &mut App,
3214 ) {
3215 for block in blocks {
3216 let mut origin = if let Some(row) = block.row {
3217 block_starts.insert(row);
3218 hitbox.origin
3219 + point(
3220 Pixels::ZERO,
3221 row.as_f32() * line_height - scroll_pixel_position.y,
3222 )
3223 } else {
3224 // Position the block outside the visible area
3225 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3226 };
3227
3228 if !matches!(block.style, BlockStyle::Sticky) {
3229 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3230 }
3231
3232 let focus_handle =
3233 block
3234 .element
3235 .prepaint_as_root(origin, block.available_space, window, cx);
3236
3237 if let Some(focus_handle) = focus_handle {
3238 self.editor.update(cx, |editor, _cx| {
3239 editor.set_focused_block(FocusedBlock {
3240 id: block.id,
3241 focus_handle: focus_handle.downgrade(),
3242 });
3243 });
3244 }
3245 }
3246 }
3247
3248 fn layout_sticky_buffer_header(
3249 &self,
3250 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3251 scroll_position: f32,
3252 line_height: Pixels,
3253 snapshot: &EditorSnapshot,
3254 hitbox: &Hitbox,
3255 selected_buffer_ids: &Vec<BufferId>,
3256 blocks: &[BlockLayout],
3257 window: &mut Window,
3258 cx: &mut App,
3259 ) -> AnyElement {
3260 let jump_data = header_jump_data(
3261 snapshot,
3262 DisplayRow(scroll_position as u32),
3263 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3264 excerpt,
3265 );
3266
3267 let editor_bg_color = cx.theme().colors().editor_background;
3268
3269 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3270
3271 let mut header = v_flex()
3272 .relative()
3273 .child(
3274 div()
3275 .w(hitbox.bounds.size.width)
3276 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3277 .bg(linear_gradient(
3278 0.,
3279 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3280 linear_color_stop(editor_bg_color, 0.6),
3281 ))
3282 .absolute()
3283 .top_0(),
3284 )
3285 .child(
3286 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3287 .into_any_element(),
3288 )
3289 .into_any_element();
3290
3291 let mut origin = hitbox.origin;
3292 // Move floating header up to avoid colliding with the next buffer header.
3293 for block in blocks.iter() {
3294 if !block.is_buffer_header {
3295 continue;
3296 }
3297
3298 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3299 continue;
3300 };
3301
3302 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3303 let offset = scroll_position - max_row as f32;
3304
3305 if offset > 0.0 {
3306 origin.y -= Pixels(offset) * line_height;
3307 }
3308 break;
3309 }
3310
3311 let size = size(
3312 AvailableSpace::Definite(hitbox.size.width),
3313 AvailableSpace::MinContent,
3314 );
3315
3316 header.prepaint_as_root(origin, size, window, cx);
3317
3318 header
3319 }
3320
3321 fn layout_cursor_popovers(
3322 &self,
3323 line_height: Pixels,
3324 text_hitbox: &Hitbox,
3325 content_origin: gpui::Point<Pixels>,
3326 start_row: DisplayRow,
3327 scroll_pixel_position: gpui::Point<Pixels>,
3328 line_layouts: &[LineWithInvisibles],
3329 cursor: DisplayPoint,
3330 cursor_point: Point,
3331 style: &EditorStyle,
3332 window: &mut Window,
3333 cx: &mut App,
3334 ) {
3335 let mut min_menu_height = Pixels::ZERO;
3336 let mut max_menu_height = Pixels::ZERO;
3337 let mut height_above_menu = Pixels::ZERO;
3338 let height_below_menu = Pixels::ZERO;
3339 let mut edit_prediction_popover_visible = false;
3340 let mut context_menu_visible = false;
3341
3342 {
3343 let editor = self.editor.read(cx);
3344 if editor
3345 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3346 {
3347 height_above_menu +=
3348 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3349 edit_prediction_popover_visible = true;
3350 }
3351
3352 if editor.context_menu_visible() {
3353 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3354 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3355 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3356 context_menu_visible = true;
3357 }
3358 }
3359 }
3360
3361 let visible = edit_prediction_popover_visible || context_menu_visible;
3362 if !visible {
3363 return;
3364 }
3365
3366 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3367 let target_position = content_origin
3368 + gpui::Point {
3369 x: cmp::max(
3370 px(0.),
3371 cursor_row_layout.x_for_index(cursor.column() as usize)
3372 - scroll_pixel_position.x,
3373 ),
3374 y: cmp::max(
3375 px(0.),
3376 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3377 ),
3378 };
3379
3380 let viewport_bounds =
3381 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3382 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3383 ..Default::default()
3384 });
3385
3386 let min_height = height_above_menu + min_menu_height + height_below_menu;
3387 let max_height = height_above_menu + max_menu_height + height_below_menu;
3388 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3389 target_position,
3390 line_height,
3391 min_height,
3392 max_height,
3393 text_hitbox,
3394 viewport_bounds,
3395 window,
3396 cx,
3397 |height, max_width_for_stable_x, y_flipped, window, cx| {
3398 // First layout the menu to get its size - others can be at least this wide.
3399 let context_menu = if context_menu_visible {
3400 let menu_height = if y_flipped {
3401 height - height_below_menu
3402 } else {
3403 height - height_above_menu
3404 };
3405 let mut element = self
3406 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3407 .expect("Visible context menu should always render.");
3408 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3409 Some((CursorPopoverType::CodeContextMenu, element, size))
3410 } else {
3411 None
3412 };
3413 let min_width = context_menu
3414 .as_ref()
3415 .map_or(px(0.), |(_, _, size)| size.width);
3416 let max_width = max_width_for_stable_x.max(
3417 context_menu
3418 .as_ref()
3419 .map_or(px(0.), |(_, _, size)| size.width),
3420 );
3421
3422 let edit_prediction = if edit_prediction_popover_visible {
3423 self.editor.update(cx, move |editor, cx| {
3424 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3425 let mut element = editor.render_edit_prediction_cursor_popover(
3426 min_width,
3427 max_width,
3428 cursor_point,
3429 style,
3430 accept_binding.keystroke(),
3431 window,
3432 cx,
3433 )?;
3434 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3435 Some((CursorPopoverType::EditPrediction, element, size))
3436 })
3437 } else {
3438 None
3439 };
3440 vec![edit_prediction, context_menu]
3441 .into_iter()
3442 .flatten()
3443 .collect::<Vec<_>>()
3444 },
3445 ) else {
3446 return;
3447 };
3448
3449 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3450 .iter()
3451 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3452 else {
3453 return;
3454 };
3455 let last_ix = laid_out_popovers.len() - 1;
3456 let menu_is_last = menu_ix == last_ix;
3457 let first_popover_bounds = laid_out_popovers[0].1;
3458 let last_popover_bounds = laid_out_popovers[last_ix].1;
3459
3460 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3461 // right, and otherwise it goes below or to the right.
3462 let mut target_bounds = Bounds::from_corners(
3463 first_popover_bounds.origin,
3464 last_popover_bounds.bottom_right(),
3465 );
3466 target_bounds.size.width = menu_bounds.size.width;
3467
3468 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3469 // based on this is preferred for layout stability.
3470 let mut max_target_bounds = target_bounds;
3471 max_target_bounds.size.height = max_height;
3472 if y_flipped {
3473 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3474 }
3475
3476 // Add spacing around `target_bounds` and `max_target_bounds`.
3477 let mut extend_amount = Edges::all(MENU_GAP);
3478 if y_flipped {
3479 extend_amount.bottom = line_height;
3480 } else {
3481 extend_amount.top = line_height;
3482 }
3483 let target_bounds = target_bounds.extend(extend_amount);
3484 let max_target_bounds = max_target_bounds.extend(extend_amount);
3485
3486 let must_place_above_or_below =
3487 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3488 laid_out_popovers[menu_ix + 1..]
3489 .iter()
3490 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3491 } else {
3492 false
3493 };
3494
3495 self.layout_context_menu_aside(
3496 y_flipped,
3497 *menu_bounds,
3498 target_bounds,
3499 max_target_bounds,
3500 max_menu_height,
3501 must_place_above_or_below,
3502 text_hitbox,
3503 viewport_bounds,
3504 window,
3505 cx,
3506 );
3507 }
3508
3509 fn layout_gutter_menu(
3510 &self,
3511 line_height: Pixels,
3512 text_hitbox: &Hitbox,
3513 content_origin: gpui::Point<Pixels>,
3514 scroll_pixel_position: gpui::Point<Pixels>,
3515 gutter_overshoot: Pixels,
3516 window: &mut Window,
3517 cx: &mut App,
3518 ) {
3519 let editor = self.editor.read(cx);
3520 if !editor.context_menu_visible() {
3521 return;
3522 }
3523 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3524 editor.context_menu_origin()
3525 else {
3526 return;
3527 };
3528 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3529 // indicator than just a plain first column of the text field.
3530 let target_position = content_origin
3531 + gpui::Point {
3532 x: -gutter_overshoot,
3533 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3534 };
3535 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3536 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3537 let viewport_bounds =
3538 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3539 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3540 ..Default::default()
3541 });
3542 self.layout_popovers_above_or_below_line(
3543 target_position,
3544 line_height,
3545 min_height,
3546 max_height,
3547 text_hitbox,
3548 viewport_bounds,
3549 window,
3550 cx,
3551 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3552 let mut element = self
3553 .render_context_menu(line_height, height, y_flipped, window, cx)
3554 .expect("Visible context menu should always render.");
3555 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3556 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3557 },
3558 );
3559 }
3560
3561 fn layout_popovers_above_or_below_line(
3562 &self,
3563 target_position: gpui::Point<Pixels>,
3564 line_height: Pixels,
3565 min_height: Pixels,
3566 max_height: Pixels,
3567 text_hitbox: &Hitbox,
3568 viewport_bounds: Bounds<Pixels>,
3569 window: &mut Window,
3570 cx: &mut App,
3571 make_sized_popovers: impl FnOnce(
3572 Pixels,
3573 Pixels,
3574 bool,
3575 &mut Window,
3576 &mut App,
3577 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3578 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3579 let text_style = TextStyleRefinement {
3580 line_height: Some(DefiniteLength::Fraction(
3581 BufferLineHeight::Comfortable.value(),
3582 )),
3583 ..Default::default()
3584 };
3585 window.with_text_style(Some(text_style), |window| {
3586 // If the max height won't fit below and there is more space above, put it above the line.
3587 let bottom_y_when_flipped = target_position.y - line_height;
3588 let available_above = bottom_y_when_flipped - text_hitbox.top();
3589 let available_below = text_hitbox.bottom() - target_position.y;
3590 let y_overflows_below = max_height > available_below;
3591 let mut y_flipped = y_overflows_below && available_above > available_below;
3592 let mut height = cmp::min(
3593 max_height,
3594 if y_flipped {
3595 available_above
3596 } else {
3597 available_below
3598 },
3599 );
3600
3601 // If the min height doesn't fit within text bounds, instead fit within the window.
3602 if height < min_height {
3603 let available_above = bottom_y_when_flipped;
3604 let available_below = viewport_bounds.bottom() - target_position.y;
3605 if available_below > min_height {
3606 y_flipped = false;
3607 height = min_height;
3608 } else if available_above > min_height {
3609 y_flipped = true;
3610 height = min_height;
3611 } else if available_above > available_below {
3612 y_flipped = true;
3613 height = available_above;
3614 } else {
3615 y_flipped = false;
3616 height = available_below;
3617 }
3618 }
3619
3620 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3621
3622 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3623 // for very narrow windows.
3624 let popovers =
3625 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3626 if popovers.is_empty() {
3627 return None;
3628 }
3629
3630 let max_width = popovers
3631 .iter()
3632 .map(|(_, _, size)| size.width)
3633 .max()
3634 .unwrap_or_default();
3635
3636 let mut current_position = gpui::Point {
3637 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3638 // overflow. Include space for the scrollbar.
3639 x: target_position
3640 .x
3641 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3642 y: if y_flipped {
3643 bottom_y_when_flipped
3644 } else {
3645 target_position.y
3646 },
3647 };
3648
3649 let mut laid_out_popovers = popovers
3650 .into_iter()
3651 .map(|(popover_type, element, size)| {
3652 if y_flipped {
3653 current_position.y -= size.height;
3654 }
3655 let position = current_position;
3656 window.defer_draw(element, current_position, 1);
3657 if !y_flipped {
3658 current_position.y += size.height + MENU_GAP;
3659 } else {
3660 current_position.y -= MENU_GAP;
3661 }
3662 (popover_type, Bounds::new(position, size))
3663 })
3664 .collect::<Vec<_>>();
3665
3666 if y_flipped {
3667 laid_out_popovers.reverse();
3668 }
3669
3670 Some((laid_out_popovers, y_flipped))
3671 })
3672 }
3673
3674 fn layout_context_menu_aside(
3675 &self,
3676 y_flipped: bool,
3677 menu_bounds: Bounds<Pixels>,
3678 target_bounds: Bounds<Pixels>,
3679 max_target_bounds: Bounds<Pixels>,
3680 max_height: Pixels,
3681 must_place_above_or_below: bool,
3682 text_hitbox: &Hitbox,
3683 viewport_bounds: Bounds<Pixels>,
3684 window: &mut Window,
3685 cx: &mut App,
3686 ) {
3687 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3688 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3689 && !must_place_above_or_below
3690 {
3691 let max_width = cmp::min(
3692 available_within_viewport.right - px(1.),
3693 MENU_ASIDE_MAX_WIDTH,
3694 );
3695 let Some(mut aside) = self.render_context_menu_aside(
3696 size(max_width, max_height - POPOVER_Y_PADDING),
3697 window,
3698 cx,
3699 ) else {
3700 return;
3701 };
3702 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3703 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3704 Some((aside, right_position))
3705 } else {
3706 let max_size = size(
3707 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3708 // won't be needed here.
3709 cmp::min(
3710 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3711 viewport_bounds.right(),
3712 ),
3713 cmp::min(
3714 max_height,
3715 cmp::max(
3716 available_within_viewport.top,
3717 available_within_viewport.bottom,
3718 ),
3719 ) - POPOVER_Y_PADDING,
3720 );
3721 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3722 return;
3723 };
3724 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3725
3726 let top_position = point(
3727 menu_bounds.origin.x,
3728 target_bounds.top() - actual_size.height,
3729 );
3730 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3731
3732 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3733 // Prefer to fit on the same side of the line as the menu, then on the other side of
3734 // the line.
3735 if !y_flipped && wanted.height < available.bottom {
3736 Some(bottom_position)
3737 } else if !y_flipped && wanted.height < available.top {
3738 Some(top_position)
3739 } else if y_flipped && wanted.height < available.top {
3740 Some(top_position)
3741 } else if y_flipped && wanted.height < available.bottom {
3742 Some(bottom_position)
3743 } else {
3744 None
3745 }
3746 };
3747
3748 // Prefer choosing a direction using max sizes rather than actual size for stability.
3749 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3750 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3751 let aside_position = fit_within(available_within_text, wanted)
3752 // Fallback: fit max size in window.
3753 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3754 // Fallback: fit actual size in window.
3755 .or_else(|| fit_within(available_within_viewport, actual_size));
3756
3757 aside_position.map(|position| (aside, position))
3758 };
3759
3760 // Skip drawing if it doesn't fit anywhere.
3761 if let Some((aside, position)) = positioned_aside {
3762 window.defer_draw(aside, position, 2);
3763 }
3764 }
3765
3766 fn render_context_menu(
3767 &self,
3768 line_height: Pixels,
3769 height: Pixels,
3770 y_flipped: bool,
3771 window: &mut Window,
3772 cx: &mut App,
3773 ) -> Option<AnyElement> {
3774 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3775 self.editor.update(cx, |editor, cx| {
3776 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3777 })
3778 }
3779
3780 fn render_context_menu_aside(
3781 &self,
3782 max_size: Size<Pixels>,
3783 window: &mut Window,
3784 cx: &mut App,
3785 ) -> Option<AnyElement> {
3786 if max_size.width < px(100.) || max_size.height < px(12.) {
3787 None
3788 } else {
3789 self.editor.update(cx, |editor, cx| {
3790 editor.render_context_menu_aside(max_size, window, cx)
3791 })
3792 }
3793 }
3794
3795 fn layout_mouse_context_menu(
3796 &self,
3797 editor_snapshot: &EditorSnapshot,
3798 visible_range: Range<DisplayRow>,
3799 content_origin: gpui::Point<Pixels>,
3800 window: &mut Window,
3801 cx: &mut App,
3802 ) -> Option<AnyElement> {
3803 let position = self.editor.update(cx, |editor, _cx| {
3804 let visible_start_point = editor.display_to_pixel_point(
3805 DisplayPoint::new(visible_range.start, 0),
3806 editor_snapshot,
3807 window,
3808 )?;
3809 let visible_end_point = editor.display_to_pixel_point(
3810 DisplayPoint::new(visible_range.end, 0),
3811 editor_snapshot,
3812 window,
3813 )?;
3814
3815 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3816 let (source_display_point, position) = match mouse_context_menu.position {
3817 MenuPosition::PinnedToScreen(point) => (None, point),
3818 MenuPosition::PinnedToEditor { source, offset } => {
3819 let source_display_point = source.to_display_point(editor_snapshot);
3820 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3821 let position = content_origin + source_point + offset;
3822 (Some(source_display_point), position)
3823 }
3824 };
3825
3826 let source_included = source_display_point.map_or(true, |source_display_point| {
3827 visible_range
3828 .to_inclusive()
3829 .contains(&source_display_point.row())
3830 });
3831 let position_included =
3832 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3833 if !source_included && !position_included {
3834 None
3835 } else {
3836 Some(position)
3837 }
3838 })?;
3839
3840 let text_style = TextStyleRefinement {
3841 line_height: Some(DefiniteLength::Fraction(
3842 BufferLineHeight::Comfortable.value(),
3843 )),
3844 ..Default::default()
3845 };
3846 window.with_text_style(Some(text_style), |window| {
3847 let mut element = self.editor.update(cx, |editor, _| {
3848 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3849 let context_menu = mouse_context_menu.context_menu.clone();
3850
3851 Some(
3852 deferred(
3853 anchored()
3854 .position(position)
3855 .child(context_menu)
3856 .anchor(Corner::TopLeft)
3857 .snap_to_window_with_margin(px(8.)),
3858 )
3859 .with_priority(1)
3860 .into_any(),
3861 )
3862 })?;
3863
3864 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3865 Some(element)
3866 })
3867 }
3868
3869 fn layout_hover_popovers(
3870 &self,
3871 snapshot: &EditorSnapshot,
3872 hitbox: &Hitbox,
3873 text_hitbox: &Hitbox,
3874 visible_display_row_range: Range<DisplayRow>,
3875 content_origin: gpui::Point<Pixels>,
3876 scroll_pixel_position: gpui::Point<Pixels>,
3877 line_layouts: &[LineWithInvisibles],
3878 line_height: Pixels,
3879 em_width: Pixels,
3880 window: &mut Window,
3881 cx: &mut App,
3882 ) {
3883 struct MeasuredHoverPopover {
3884 element: AnyElement,
3885 size: Size<Pixels>,
3886 horizontal_offset: Pixels,
3887 }
3888
3889 let max_size = size(
3890 (120. * em_width) // Default size
3891 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3892 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3893 (16. * line_height) // Default size
3894 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3895 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3896 );
3897
3898 let hover_popovers = self.editor.update(cx, |editor, cx| {
3899 editor
3900 .hover_state
3901 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3902 });
3903 let Some((position, hover_popovers)) = hover_popovers else {
3904 return;
3905 };
3906
3907 // This is safe because we check on layout whether the required row is available
3908 let hovered_row_layout =
3909 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3910
3911 // Compute Hovered Point
3912 let x =
3913 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3914 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3915 let hovered_point = content_origin + point(x, y);
3916
3917 let mut overall_height = Pixels::ZERO;
3918 let mut measured_hover_popovers = Vec::new();
3919 for mut hover_popover in hover_popovers {
3920 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3921 let horizontal_offset =
3922 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3923
3924 overall_height += HOVER_POPOVER_GAP + size.height;
3925
3926 measured_hover_popovers.push(MeasuredHoverPopover {
3927 element: hover_popover,
3928 size,
3929 horizontal_offset,
3930 });
3931 }
3932 overall_height += HOVER_POPOVER_GAP;
3933
3934 fn draw_occluder(
3935 width: Pixels,
3936 origin: gpui::Point<Pixels>,
3937 window: &mut Window,
3938 cx: &mut App,
3939 ) {
3940 let mut occlusion = div()
3941 .size_full()
3942 .occlude()
3943 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3944 .into_any_element();
3945 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3946 window.defer_draw(occlusion, origin, 2);
3947 }
3948
3949 if hovered_point.y > overall_height {
3950 // There is enough space above. Render popovers above the hovered point
3951 let mut current_y = hovered_point.y;
3952 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3953 let size = popover.size;
3954 let popover_origin = point(
3955 hovered_point.x + popover.horizontal_offset,
3956 current_y - size.height,
3957 );
3958
3959 window.defer_draw(popover.element, popover_origin, 2);
3960 if position != itertools::Position::Last {
3961 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3962 draw_occluder(size.width, origin, window, cx);
3963 }
3964
3965 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3966 }
3967 } else {
3968 // There is not enough space above. Render popovers below the hovered point
3969 let mut current_y = hovered_point.y + line_height;
3970 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3971 let size = popover.size;
3972 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3973
3974 window.defer_draw(popover.element, popover_origin, 2);
3975 if position != itertools::Position::Last {
3976 let origin = point(popover_origin.x, popover_origin.y + size.height);
3977 draw_occluder(size.width, origin, window, cx);
3978 }
3979
3980 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3981 }
3982 }
3983 }
3984
3985 fn layout_diff_hunk_controls(
3986 &self,
3987 row_range: Range<DisplayRow>,
3988 row_infos: &[RowInfo],
3989 text_hitbox: &Hitbox,
3990 position_map: &PositionMap,
3991 newest_cursor_position: Option<DisplayPoint>,
3992 line_height: Pixels,
3993 scroll_pixel_position: gpui::Point<Pixels>,
3994 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3995 editor: Entity<Editor>,
3996 window: &mut Window,
3997 cx: &mut App,
3998 ) -> Vec<AnyElement> {
3999 let point_for_position = position_map.point_for_position(window.mouse_position());
4000
4001 let mut controls = vec![];
4002
4003 let active_positions = [
4004 Some(point_for_position.previous_valid),
4005 newest_cursor_position,
4006 ];
4007
4008 for (hunk, _) in display_hunks {
4009 if let DisplayDiffHunk::Unfolded {
4010 display_row_range,
4011 multi_buffer_range,
4012 status,
4013 is_created_file,
4014 ..
4015 } = &hunk
4016 {
4017 if display_row_range.start < row_range.start
4018 || display_row_range.start >= row_range.end
4019 {
4020 continue;
4021 }
4022 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4023 if row_infos[row_ix].diff_status.is_none() {
4024 continue;
4025 }
4026 if row_infos[row_ix]
4027 .diff_status
4028 .is_some_and(|status| status.is_added())
4029 && !status.is_added()
4030 {
4031 continue;
4032 }
4033 if active_positions
4034 .iter()
4035 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4036 {
4037 let y = display_row_range.start.as_f32() * line_height
4038 + text_hitbox.bounds.top()
4039 - scroll_pixel_position.y;
4040
4041 let mut element = diff_hunk_controls(
4042 display_row_range.start.0,
4043 status,
4044 multi_buffer_range.clone(),
4045 *is_created_file,
4046 line_height,
4047 &editor,
4048 cx,
4049 );
4050 let size =
4051 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4052
4053 let x = text_hitbox.bounds.right()
4054 - self.style.scrollbar_width
4055 - px(10.)
4056 - size.width;
4057
4058 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4059 element.prepaint(window, cx)
4060 });
4061 controls.push(element);
4062 }
4063 }
4064 }
4065
4066 controls
4067 }
4068
4069 fn layout_signature_help(
4070 &self,
4071 hitbox: &Hitbox,
4072 content_origin: gpui::Point<Pixels>,
4073 scroll_pixel_position: gpui::Point<Pixels>,
4074 newest_selection_head: Option<DisplayPoint>,
4075 start_row: DisplayRow,
4076 line_layouts: &[LineWithInvisibles],
4077 line_height: Pixels,
4078 em_width: Pixels,
4079 window: &mut Window,
4080 cx: &mut App,
4081 ) {
4082 if !self.editor.focus_handle(cx).is_focused(window) {
4083 return;
4084 }
4085 let Some(newest_selection_head) = newest_selection_head else {
4086 return;
4087 };
4088 let selection_row = newest_selection_head.row();
4089 if selection_row < start_row {
4090 return;
4091 }
4092 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4093 else {
4094 return;
4095 };
4096
4097 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4098 - scroll_pixel_position.x
4099 + content_origin.x;
4100 let start_y =
4101 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4102
4103 let max_size = size(
4104 (120. * em_width) // Default size
4105 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4106 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4107 (16. * line_height) // Default size
4108 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4109 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4110 );
4111
4112 let maybe_element = self.editor.update(cx, |editor, cx| {
4113 if let Some(popover) = editor.signature_help_state.popover_mut() {
4114 let element = popover.render(max_size, cx);
4115 Some(element)
4116 } else {
4117 None
4118 }
4119 });
4120 if let Some(mut element) = maybe_element {
4121 let window_size = window.viewport_size();
4122 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4123 let mut point = point(start_x, start_y - size.height);
4124
4125 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4126 if point.x + size.width >= window_size.width {
4127 point.x = window_size.width - size.width;
4128 }
4129
4130 window.defer_draw(element, point, 1)
4131 }
4132 }
4133
4134 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4135 window.paint_layer(layout.hitbox.bounds, |window| {
4136 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4137 let gutter_bg = cx.theme().colors().editor_gutter_background;
4138 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4139 window.paint_quad(fill(
4140 layout.position_map.text_hitbox.bounds,
4141 self.style.background,
4142 ));
4143
4144 if let EditorMode::Full = layout.mode {
4145 let mut active_rows = layout.active_rows.iter().peekable();
4146 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4147 let mut end_row = start_row.0;
4148 while active_rows
4149 .peek()
4150 .map_or(false, |(active_row, has_selection)| {
4151 active_row.0 == end_row + 1
4152 && has_selection.selection == contains_non_empty_selection.selection
4153 })
4154 {
4155 active_rows.next().unwrap();
4156 end_row += 1;
4157 }
4158
4159 if !contains_non_empty_selection.selection {
4160 let highlight_h_range =
4161 match layout.position_map.snapshot.current_line_highlight {
4162 CurrentLineHighlight::Gutter => Some(Range {
4163 start: layout.hitbox.left(),
4164 end: layout.gutter_hitbox.right(),
4165 }),
4166 CurrentLineHighlight::Line => Some(Range {
4167 start: layout.position_map.text_hitbox.bounds.left(),
4168 end: layout.position_map.text_hitbox.bounds.right(),
4169 }),
4170 CurrentLineHighlight::All => Some(Range {
4171 start: layout.hitbox.left(),
4172 end: layout.hitbox.right(),
4173 }),
4174 CurrentLineHighlight::None => None,
4175 };
4176 if let Some(range) = highlight_h_range {
4177 let active_line_bg = cx.theme().colors().editor_active_line_background;
4178 let bounds = Bounds {
4179 origin: point(
4180 range.start,
4181 layout.hitbox.origin.y
4182 + (start_row.as_f32() - scroll_top)
4183 * layout.position_map.line_height,
4184 ),
4185 size: size(
4186 range.end - range.start,
4187 layout.position_map.line_height
4188 * (end_row - start_row.0 + 1) as f32,
4189 ),
4190 };
4191 window.paint_quad(fill(bounds, active_line_bg));
4192 }
4193 }
4194 }
4195
4196 let mut paint_highlight = |highlight_row_start: DisplayRow,
4197 highlight_row_end: DisplayRow,
4198 highlight: crate::LineHighlight,
4199 edges| {
4200 let origin = point(
4201 layout.hitbox.origin.x,
4202 layout.hitbox.origin.y
4203 + (highlight_row_start.as_f32() - scroll_top)
4204 * layout.position_map.line_height,
4205 );
4206 let size = size(
4207 layout.hitbox.size.width,
4208 layout.position_map.line_height
4209 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4210 );
4211 let mut quad = fill(Bounds { origin, size }, highlight.background);
4212 if let Some(border_color) = highlight.border {
4213 quad.border_color = border_color;
4214 quad.border_widths = edges
4215 }
4216 window.paint_quad(quad);
4217 };
4218
4219 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4220 None;
4221 for (&new_row, &new_background) in &layout.highlighted_rows {
4222 match &mut current_paint {
4223 Some((current_background, current_range, mut edges)) => {
4224 let current_background = *current_background;
4225 let new_range_started = current_background != new_background
4226 || current_range.end.next_row() != new_row;
4227 if new_range_started {
4228 if current_range.end.next_row() == new_row {
4229 edges.bottom = px(0.);
4230 };
4231 paint_highlight(
4232 current_range.start,
4233 current_range.end,
4234 current_background,
4235 edges,
4236 );
4237 let edges = Edges {
4238 top: if current_range.end.next_row() != new_row {
4239 px(1.)
4240 } else {
4241 px(0.)
4242 },
4243 bottom: px(1.),
4244 ..Default::default()
4245 };
4246 current_paint = Some((new_background, new_row..new_row, edges));
4247 continue;
4248 } else {
4249 current_range.end = current_range.end.next_row();
4250 }
4251 }
4252 None => {
4253 let edges = Edges {
4254 top: px(1.),
4255 bottom: px(1.),
4256 ..Default::default()
4257 };
4258 current_paint = Some((new_background, new_row..new_row, edges))
4259 }
4260 };
4261 }
4262 if let Some((color, range, edges)) = current_paint {
4263 paint_highlight(range.start, range.end, color, edges);
4264 }
4265
4266 let scroll_left =
4267 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4268
4269 for (wrap_position, active) in layout.wrap_guides.iter() {
4270 let x = (layout.position_map.text_hitbox.origin.x
4271 + *wrap_position
4272 + layout.position_map.em_width / 2.)
4273 - scroll_left;
4274
4275 let show_scrollbars = {
4276 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4277
4278 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4279 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4280 };
4281
4282 if x < layout.position_map.text_hitbox.origin.x
4283 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4284 {
4285 continue;
4286 }
4287
4288 let color = if *active {
4289 cx.theme().colors().editor_active_wrap_guide
4290 } else {
4291 cx.theme().colors().editor_wrap_guide
4292 };
4293 window.paint_quad(fill(
4294 Bounds {
4295 origin: point(x, layout.position_map.text_hitbox.origin.y),
4296 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4297 },
4298 color,
4299 ));
4300 }
4301 }
4302 })
4303 }
4304
4305 fn paint_indent_guides(
4306 &mut self,
4307 layout: &mut EditorLayout,
4308 window: &mut Window,
4309 cx: &mut App,
4310 ) {
4311 let Some(indent_guides) = &layout.indent_guides else {
4312 return;
4313 };
4314
4315 let faded_color = |color: Hsla, alpha: f32| {
4316 let mut faded = color;
4317 faded.a = alpha;
4318 faded
4319 };
4320
4321 for indent_guide in indent_guides {
4322 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4323 let settings = indent_guide.settings;
4324
4325 // TODO fixed for now, expose them through themes later
4326 const INDENT_AWARE_ALPHA: f32 = 0.2;
4327 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4328 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4329 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4330
4331 let line_color = match (settings.coloring, indent_guide.active) {
4332 (IndentGuideColoring::Disabled, _) => None,
4333 (IndentGuideColoring::Fixed, false) => {
4334 Some(cx.theme().colors().editor_indent_guide)
4335 }
4336 (IndentGuideColoring::Fixed, true) => {
4337 Some(cx.theme().colors().editor_indent_guide_active)
4338 }
4339 (IndentGuideColoring::IndentAware, false) => {
4340 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4341 }
4342 (IndentGuideColoring::IndentAware, true) => {
4343 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4344 }
4345 };
4346
4347 let background_color = match (settings.background_coloring, indent_guide.active) {
4348 (IndentGuideBackgroundColoring::Disabled, _) => None,
4349 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4350 indent_accent_colors,
4351 INDENT_AWARE_BACKGROUND_ALPHA,
4352 )),
4353 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4354 indent_accent_colors,
4355 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4356 )),
4357 };
4358
4359 let requested_line_width = if indent_guide.active {
4360 settings.active_line_width
4361 } else {
4362 settings.line_width
4363 }
4364 .clamp(1, 10);
4365 let mut line_indicator_width = 0.;
4366 if let Some(color) = line_color {
4367 window.paint_quad(fill(
4368 Bounds {
4369 origin: indent_guide.origin,
4370 size: size(px(requested_line_width as f32), indent_guide.length),
4371 },
4372 color,
4373 ));
4374 line_indicator_width = requested_line_width as f32;
4375 }
4376
4377 if let Some(color) = background_color {
4378 let width = indent_guide.single_indent_width - px(line_indicator_width);
4379 window.paint_quad(fill(
4380 Bounds {
4381 origin: point(
4382 indent_guide.origin.x + px(line_indicator_width),
4383 indent_guide.origin.y,
4384 ),
4385 size: size(width, indent_guide.length),
4386 },
4387 color,
4388 ));
4389 }
4390 }
4391 }
4392
4393 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4394 let is_singleton = self.editor.read(cx).is_singleton(cx);
4395
4396 let line_height = layout.position_map.line_height;
4397 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4398
4399 for LineNumberLayout {
4400 shaped_line,
4401 hitbox,
4402 } in layout.line_numbers.values()
4403 {
4404 let Some(hitbox) = hitbox else {
4405 continue;
4406 };
4407
4408 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4409 let color = cx.theme().colors().editor_hover_line_number;
4410
4411 let Some(line) = self
4412 .shape_line_number(shaped_line.text.clone(), color, window)
4413 .log_err()
4414 else {
4415 continue;
4416 };
4417
4418 line.paint(hitbox.origin, line_height, window, cx).log_err()
4419 } else {
4420 shaped_line
4421 .paint(hitbox.origin, line_height, window, cx)
4422 .log_err()
4423 }) else {
4424 continue;
4425 };
4426
4427 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4428 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4429 if is_singleton {
4430 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4431 } else {
4432 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4433 }
4434 }
4435 }
4436
4437 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4438 if layout.display_hunks.is_empty() {
4439 return;
4440 }
4441
4442 let line_height = layout.position_map.line_height;
4443 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4444 for (hunk, hitbox) in &layout.display_hunks {
4445 let hunk_to_paint = match hunk {
4446 DisplayDiffHunk::Folded { .. } => {
4447 let hunk_bounds = Self::diff_hunk_bounds(
4448 &layout.position_map.snapshot,
4449 line_height,
4450 layout.gutter_hitbox.bounds,
4451 &hunk,
4452 );
4453 Some((
4454 hunk_bounds,
4455 cx.theme().colors().version_control_modified,
4456 Corners::all(px(0.)),
4457 DiffHunkStatus::modified_none(),
4458 ))
4459 }
4460 DisplayDiffHunk::Unfolded {
4461 status,
4462 display_row_range,
4463 ..
4464 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4465 DiffHunkStatusKind::Added => (
4466 hunk_hitbox.bounds,
4467 cx.theme().colors().version_control_added,
4468 Corners::all(px(0.)),
4469 *status,
4470 ),
4471 DiffHunkStatusKind::Modified => (
4472 hunk_hitbox.bounds,
4473 cx.theme().colors().version_control_modified,
4474 Corners::all(px(0.)),
4475 *status,
4476 ),
4477 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4478 hunk_hitbox.bounds,
4479 cx.theme().colors().version_control_deleted,
4480 Corners::all(px(0.)),
4481 *status,
4482 ),
4483 DiffHunkStatusKind::Deleted => (
4484 Bounds::new(
4485 point(
4486 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4487 hunk_hitbox.origin.y,
4488 ),
4489 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4490 ),
4491 cx.theme().colors().version_control_deleted,
4492 Corners::all(1. * line_height),
4493 *status,
4494 ),
4495 }),
4496 };
4497
4498 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4499 // Flatten the background color with the editor color to prevent
4500 // elements below transparent hunks from showing through
4501 let flattened_background_color = cx
4502 .theme()
4503 .colors()
4504 .editor_background
4505 .blend(background_color);
4506
4507 if !Self::diff_hunk_hollow(status, cx) {
4508 window.paint_quad(quad(
4509 hunk_bounds,
4510 corner_radii,
4511 flattened_background_color,
4512 Edges::default(),
4513 transparent_black(),
4514 ));
4515 } else {
4516 let flattened_unstaged_background_color = cx
4517 .theme()
4518 .colors()
4519 .editor_background
4520 .blend(background_color.opacity(0.3));
4521
4522 window.paint_quad(quad(
4523 hunk_bounds,
4524 corner_radii,
4525 flattened_unstaged_background_color,
4526 Edges::all(Pixels(1.0)),
4527 flattened_background_color,
4528 ));
4529 }
4530 }
4531 }
4532 });
4533 }
4534
4535 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4536 (0.275 * line_height).floor()
4537 }
4538
4539 fn diff_hunk_bounds(
4540 snapshot: &EditorSnapshot,
4541 line_height: Pixels,
4542 gutter_bounds: Bounds<Pixels>,
4543 hunk: &DisplayDiffHunk,
4544 ) -> Bounds<Pixels> {
4545 let scroll_position = snapshot.scroll_position();
4546 let scroll_top = scroll_position.y * line_height;
4547 let gutter_strip_width = Self::gutter_strip_width(line_height);
4548
4549 match hunk {
4550 DisplayDiffHunk::Folded { display_row, .. } => {
4551 let start_y = display_row.as_f32() * line_height - scroll_top;
4552 let end_y = start_y + line_height;
4553 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4554 let highlight_size = size(gutter_strip_width, end_y - start_y);
4555 Bounds::new(highlight_origin, highlight_size)
4556 }
4557 DisplayDiffHunk::Unfolded {
4558 display_row_range,
4559 status,
4560 ..
4561 } => {
4562 if status.is_deleted() && display_row_range.is_empty() {
4563 let row = display_row_range.start;
4564
4565 let offset = line_height / 2.;
4566 let start_y = row.as_f32() * line_height - offset - scroll_top;
4567 let end_y = start_y + line_height;
4568
4569 let width = (0.35 * line_height).floor();
4570 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4571 let highlight_size = size(width, end_y - start_y);
4572 Bounds::new(highlight_origin, highlight_size)
4573 } else {
4574 let start_row = display_row_range.start;
4575 let end_row = display_row_range.end;
4576 // If we're in a multibuffer, row range span might include an
4577 // excerpt header, so if we were to draw the marker straight away,
4578 // the hunk might include the rows of that header.
4579 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4580 // Instead, we simply check whether the range we're dealing with includes
4581 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4582 let end_row_in_current_excerpt = snapshot
4583 .blocks_in_range(start_row..end_row)
4584 .find_map(|(start_row, block)| {
4585 if matches!(block, Block::ExcerptBoundary { .. }) {
4586 Some(start_row)
4587 } else {
4588 None
4589 }
4590 })
4591 .unwrap_or(end_row);
4592
4593 let start_y = start_row.as_f32() * line_height - scroll_top;
4594 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4595
4596 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4597 let highlight_size = size(gutter_strip_width, end_y - start_y);
4598 Bounds::new(highlight_origin, highlight_size)
4599 }
4600 }
4601 }
4602 }
4603
4604 fn paint_gutter_indicators(
4605 &self,
4606 layout: &mut EditorLayout,
4607 window: &mut Window,
4608 cx: &mut App,
4609 ) {
4610 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4611 window.with_element_namespace("crease_toggles", |window| {
4612 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4613 crease_toggle.paint(window, cx);
4614 }
4615 });
4616
4617 window.with_element_namespace("expand_toggles", |window| {
4618 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4619 expand_toggle.paint(window, cx);
4620 }
4621 });
4622
4623 for breakpoint in layout.breakpoints.iter_mut() {
4624 breakpoint.paint(window, cx);
4625 }
4626
4627 for test_indicator in layout.test_indicators.iter_mut() {
4628 test_indicator.paint(window, cx);
4629 }
4630
4631 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4632 indicator.paint(window, cx);
4633 }
4634 });
4635 }
4636
4637 fn paint_gutter_highlights(
4638 &self,
4639 layout: &mut EditorLayout,
4640 window: &mut Window,
4641 cx: &mut App,
4642 ) {
4643 for (_, hunk_hitbox) in &layout.display_hunks {
4644 if let Some(hunk_hitbox) = hunk_hitbox {
4645 if !self
4646 .editor
4647 .read(cx)
4648 .buffer()
4649 .read(cx)
4650 .all_diff_hunks_expanded()
4651 {
4652 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4653 }
4654 }
4655 }
4656
4657 let show_git_gutter = layout
4658 .position_map
4659 .snapshot
4660 .show_git_diff_gutter
4661 .unwrap_or_else(|| {
4662 matches!(
4663 ProjectSettings::get_global(cx).git.git_gutter,
4664 Some(GitGutterSetting::TrackedFiles)
4665 )
4666 });
4667 if show_git_gutter {
4668 Self::paint_gutter_diff_hunks(layout, window, cx)
4669 }
4670
4671 let highlight_width = 0.275 * layout.position_map.line_height;
4672 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4673 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4674 for (range, color) in &layout.highlighted_gutter_ranges {
4675 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4676 layout.visible_display_row_range.start - DisplayRow(1)
4677 } else {
4678 range.start.row()
4679 };
4680 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4681 layout.visible_display_row_range.end + DisplayRow(1)
4682 } else {
4683 range.end.row()
4684 };
4685
4686 let start_y = layout.gutter_hitbox.top()
4687 + start_row.0 as f32 * layout.position_map.line_height
4688 - layout.position_map.scroll_pixel_position.y;
4689 let end_y = layout.gutter_hitbox.top()
4690 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4691 - layout.position_map.scroll_pixel_position.y;
4692 let bounds = Bounds::from_corners(
4693 point(layout.gutter_hitbox.left(), start_y),
4694 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4695 );
4696 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4697 }
4698 });
4699 }
4700
4701 fn paint_blamed_display_rows(
4702 &self,
4703 layout: &mut EditorLayout,
4704 window: &mut Window,
4705 cx: &mut App,
4706 ) {
4707 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4708 return;
4709 };
4710
4711 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4712 for mut blame_element in blamed_display_rows.into_iter() {
4713 blame_element.paint(window, cx);
4714 }
4715 })
4716 }
4717
4718 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4719 window.with_content_mask(
4720 Some(ContentMask {
4721 bounds: layout.position_map.text_hitbox.bounds,
4722 }),
4723 |window| {
4724 let cursor_style = if self
4725 .editor
4726 .read(cx)
4727 .hovered_link_state
4728 .as_ref()
4729 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4730 {
4731 CursorStyle::PointingHand
4732 } else {
4733 CursorStyle::IBeam
4734 };
4735 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4736
4737 self.paint_lines_background(layout, window, cx);
4738 let invisible_display_ranges = self.paint_highlights(layout, window);
4739 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4740 self.paint_redactions(layout, window);
4741 self.paint_cursors(layout, window, cx);
4742 self.paint_inline_diagnostics(layout, window, cx);
4743 self.paint_inline_blame(layout, window, cx);
4744 self.paint_diff_hunk_controls(layout, window, cx);
4745 window.with_element_namespace("crease_trailers", |window| {
4746 for trailer in layout.crease_trailers.iter_mut().flatten() {
4747 trailer.element.paint(window, cx);
4748 }
4749 });
4750 },
4751 )
4752 }
4753
4754 fn paint_highlights(
4755 &mut self,
4756 layout: &mut EditorLayout,
4757 window: &mut Window,
4758 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4759 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4760 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4761 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4762 for (range, color) in &layout.highlighted_ranges {
4763 self.paint_highlighted_range(
4764 range.clone(),
4765 *color,
4766 Pixels::ZERO,
4767 line_end_overshoot,
4768 layout,
4769 window,
4770 );
4771 }
4772
4773 let corner_radius = 0.15 * layout.position_map.line_height;
4774
4775 for (player_color, selections) in &layout.selections {
4776 for selection in selections.iter() {
4777 self.paint_highlighted_range(
4778 selection.range.clone(),
4779 player_color.selection,
4780 corner_radius,
4781 corner_radius * 2.,
4782 layout,
4783 window,
4784 );
4785
4786 if selection.is_local && !selection.range.is_empty() {
4787 invisible_display_ranges.push(selection.range.clone());
4788 }
4789 }
4790 }
4791 invisible_display_ranges
4792 })
4793 }
4794
4795 fn paint_lines(
4796 &mut self,
4797 invisible_display_ranges: &[Range<DisplayPoint>],
4798 layout: &mut EditorLayout,
4799 window: &mut Window,
4800 cx: &mut App,
4801 ) {
4802 let whitespace_setting = self
4803 .editor
4804 .read(cx)
4805 .buffer
4806 .read(cx)
4807 .language_settings(cx)
4808 .show_whitespaces;
4809
4810 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4811 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4812 line_with_invisibles.draw(
4813 layout,
4814 row,
4815 layout.content_origin,
4816 whitespace_setting,
4817 invisible_display_ranges,
4818 window,
4819 cx,
4820 )
4821 }
4822
4823 for line_element in &mut layout.line_elements {
4824 line_element.paint(window, cx);
4825 }
4826 }
4827
4828 fn paint_lines_background(
4829 &mut self,
4830 layout: &mut EditorLayout,
4831 window: &mut Window,
4832 cx: &mut App,
4833 ) {
4834 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4835 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4836 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4837 }
4838 }
4839
4840 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4841 if layout.redacted_ranges.is_empty() {
4842 return;
4843 }
4844
4845 let line_end_overshoot = layout.line_end_overshoot();
4846
4847 // A softer than perfect black
4848 let redaction_color = gpui::rgb(0x0e1111);
4849
4850 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4851 for range in layout.redacted_ranges.iter() {
4852 self.paint_highlighted_range(
4853 range.clone(),
4854 redaction_color.into(),
4855 Pixels::ZERO,
4856 line_end_overshoot,
4857 layout,
4858 window,
4859 );
4860 }
4861 });
4862 }
4863
4864 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4865 for cursor in &mut layout.visible_cursors {
4866 cursor.paint(layout.content_origin, window, cx);
4867 }
4868 }
4869
4870 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4871 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4872
4873 if let Some(scrollbar_layout) = scrollbar_x {
4874 let hitbox = scrollbar_layout.hitbox.clone();
4875 let text_unit_size = scrollbar_layout.text_unit_size;
4876 let visible_range = scrollbar_layout.visible_range.clone();
4877 let thumb_bounds = scrollbar_layout.thumb_bounds();
4878
4879 if scrollbar_layout.visible {
4880 window.paint_layer(hitbox.bounds, |window| {
4881 window.paint_quad(quad(
4882 hitbox.bounds,
4883 Corners::default(),
4884 cx.theme().colors().scrollbar_track_background,
4885 Edges {
4886 top: Pixels::ZERO,
4887 right: Pixels::ZERO,
4888 bottom: Pixels::ZERO,
4889 left: Pixels::ZERO,
4890 },
4891 cx.theme().colors().scrollbar_track_border,
4892 ));
4893
4894 window.paint_quad(quad(
4895 thumb_bounds,
4896 Corners::default(),
4897 cx.theme().colors().scrollbar_thumb_background,
4898 Edges {
4899 top: Pixels::ZERO,
4900 right: Pixels::ZERO,
4901 bottom: Pixels::ZERO,
4902 left: ScrollbarLayout::BORDER_WIDTH,
4903 },
4904 cx.theme().colors().scrollbar_thumb_border,
4905 ));
4906 })
4907 }
4908
4909 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4910
4911 window.on_mouse_event({
4912 let editor = self.editor.clone();
4913
4914 // there may be a way to avoid this clone
4915 let hitbox = hitbox.clone();
4916
4917 let mut mouse_position = window.mouse_position();
4918 move |event: &MouseMoveEvent, phase, window, cx| {
4919 if phase == DispatchPhase::Capture {
4920 return;
4921 }
4922
4923 editor.update(cx, |editor, cx| {
4924 if event.pressed_button == Some(MouseButton::Left)
4925 && editor
4926 .scroll_manager
4927 .is_dragging_scrollbar(Axis::Horizontal)
4928 {
4929 let x = mouse_position.x;
4930 let new_x = event.position.x;
4931 if (hitbox.left()..hitbox.right()).contains(&x) {
4932 let mut position = editor.scroll_position(cx);
4933
4934 position.x += (new_x - x) / text_unit_size;
4935 if position.x < 0.0 {
4936 position.x = 0.0;
4937 }
4938 editor.set_scroll_position(position, window, cx);
4939 }
4940
4941 cx.stop_propagation();
4942 } else {
4943 editor.scroll_manager.set_is_dragging_scrollbar(
4944 Axis::Horizontal,
4945 false,
4946 cx,
4947 );
4948
4949 if hitbox.is_hovered(window) {
4950 editor.scroll_manager.show_scrollbar(window, cx);
4951 }
4952 }
4953 mouse_position = event.position;
4954 })
4955 }
4956 });
4957
4958 if self
4959 .editor
4960 .read(cx)
4961 .scroll_manager
4962 .is_dragging_scrollbar(Axis::Horizontal)
4963 {
4964 window.on_mouse_event({
4965 let editor = self.editor.clone();
4966 move |_: &MouseUpEvent, phase, _, cx| {
4967 if phase == DispatchPhase::Capture {
4968 return;
4969 }
4970
4971 editor.update(cx, |editor, cx| {
4972 editor.scroll_manager.set_is_dragging_scrollbar(
4973 Axis::Horizontal,
4974 false,
4975 cx,
4976 );
4977 cx.stop_propagation();
4978 });
4979 }
4980 });
4981 } else {
4982 window.on_mouse_event({
4983 let editor = self.editor.clone();
4984
4985 move |event: &MouseDownEvent, phase, window, cx| {
4986 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4987 return;
4988 }
4989
4990 editor.update(cx, |editor, cx| {
4991 editor.scroll_manager.set_is_dragging_scrollbar(
4992 Axis::Horizontal,
4993 true,
4994 cx,
4995 );
4996
4997 let x = event.position.x;
4998
4999 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5000 let center_row =
5001 ((x - hitbox.left()) / text_unit_size).round() as u32;
5002 let top_row = center_row.saturating_sub(
5003 (visible_range.end - visible_range.start) as u32 / 2,
5004 );
5005
5006 let mut position = editor.scroll_position(cx);
5007 position.x = top_row as f32;
5008
5009 editor.set_scroll_position(position, window, cx);
5010 } else {
5011 editor.scroll_manager.show_scrollbar(window, cx);
5012 }
5013
5014 cx.stop_propagation();
5015 });
5016 }
5017 });
5018 }
5019 }
5020
5021 if let Some(scrollbar_layout) = scrollbar_y {
5022 let hitbox = scrollbar_layout.hitbox.clone();
5023 let text_unit_size = scrollbar_layout.text_unit_size;
5024 let visible_range = scrollbar_layout.visible_range.clone();
5025 let thumb_bounds = scrollbar_layout.thumb_bounds();
5026
5027 if scrollbar_layout.visible {
5028 window.paint_layer(hitbox.bounds, |window| {
5029 window.paint_quad(quad(
5030 hitbox.bounds,
5031 Corners::default(),
5032 cx.theme().colors().scrollbar_track_background,
5033 Edges {
5034 top: Pixels::ZERO,
5035 right: Pixels::ZERO,
5036 bottom: Pixels::ZERO,
5037 left: ScrollbarLayout::BORDER_WIDTH,
5038 },
5039 cx.theme().colors().scrollbar_track_border,
5040 ));
5041
5042 let fast_markers =
5043 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5044 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5045 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5046
5047 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5048 for marker in markers.iter().chain(&fast_markers) {
5049 let mut marker = marker.clone();
5050 marker.bounds.origin += hitbox.origin;
5051 window.paint_quad(marker);
5052 }
5053
5054 window.paint_quad(quad(
5055 thumb_bounds,
5056 Corners::default(),
5057 cx.theme().colors().scrollbar_thumb_background,
5058 Edges {
5059 top: Pixels::ZERO,
5060 right: Pixels::ZERO,
5061 bottom: Pixels::ZERO,
5062 left: ScrollbarLayout::BORDER_WIDTH,
5063 },
5064 cx.theme().colors().scrollbar_thumb_border,
5065 ));
5066 });
5067 }
5068
5069 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5070
5071 window.on_mouse_event({
5072 let editor = self.editor.clone();
5073
5074 let hitbox = hitbox.clone();
5075
5076 let mut mouse_position = window.mouse_position();
5077 move |event: &MouseMoveEvent, phase, window, cx| {
5078 if phase == DispatchPhase::Capture {
5079 return;
5080 }
5081
5082 editor.update(cx, |editor, cx| {
5083 if event.pressed_button == Some(MouseButton::Left)
5084 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5085 {
5086 let y = mouse_position.y;
5087 let new_y = event.position.y;
5088 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5089 let mut position = editor.scroll_position(cx);
5090 position.y += (new_y - y) / text_unit_size;
5091 if position.y < 0.0 {
5092 position.y = 0.0;
5093 }
5094 editor.set_scroll_position(position, window, cx);
5095 }
5096 } else {
5097 editor.scroll_manager.set_is_dragging_scrollbar(
5098 Axis::Vertical,
5099 false,
5100 cx,
5101 );
5102
5103 if hitbox.is_hovered(window) {
5104 editor.scroll_manager.show_scrollbar(window, cx);
5105 }
5106 }
5107 mouse_position = event.position;
5108 })
5109 }
5110 });
5111
5112 if self
5113 .editor
5114 .read(cx)
5115 .scroll_manager
5116 .is_dragging_scrollbar(Axis::Vertical)
5117 {
5118 window.on_mouse_event({
5119 let editor = self.editor.clone();
5120 move |_: &MouseUpEvent, phase, _, cx| {
5121 if phase == DispatchPhase::Capture {
5122 return;
5123 }
5124
5125 editor.update(cx, |editor, cx| {
5126 editor.scroll_manager.set_is_dragging_scrollbar(
5127 Axis::Vertical,
5128 false,
5129 cx,
5130 );
5131 cx.stop_propagation();
5132 });
5133 }
5134 });
5135 } else {
5136 window.on_mouse_event({
5137 let editor = self.editor.clone();
5138
5139 move |event: &MouseDownEvent, phase, window, cx| {
5140 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5141 return;
5142 }
5143
5144 editor.update(cx, |editor, cx| {
5145 editor.scroll_manager.set_is_dragging_scrollbar(
5146 Axis::Vertical,
5147 true,
5148 cx,
5149 );
5150
5151 let y = event.position.y;
5152 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5153 let center_row =
5154 ((y - hitbox.top()) / text_unit_size).round() as u32;
5155 let top_row = center_row.saturating_sub(
5156 (visible_range.end - visible_range.start) as u32 / 2,
5157 );
5158 let mut position = editor.scroll_position(cx);
5159 position.y = top_row as f32;
5160 editor.set_scroll_position(position, window, cx);
5161 } else {
5162 editor.scroll_manager.show_scrollbar(window, cx);
5163 }
5164
5165 cx.stop_propagation();
5166 });
5167 }
5168 });
5169 }
5170 }
5171 }
5172
5173 fn collect_fast_scrollbar_markers(
5174 &self,
5175 layout: &EditorLayout,
5176 scrollbar_layout: &ScrollbarLayout,
5177 cx: &mut App,
5178 ) -> Vec<PaintQuad> {
5179 const LIMIT: usize = 100;
5180 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5181 return vec![];
5182 }
5183 let cursor_ranges = layout
5184 .cursors
5185 .iter()
5186 .map(|(point, color)| ColoredRange {
5187 start: point.row(),
5188 end: point.row(),
5189 color: *color,
5190 })
5191 .collect_vec();
5192 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5193 }
5194
5195 fn refresh_slow_scrollbar_markers(
5196 &self,
5197 layout: &EditorLayout,
5198 scrollbar_layout: &ScrollbarLayout,
5199 window: &mut Window,
5200 cx: &mut App,
5201 ) {
5202 self.editor.update(cx, |editor, cx| {
5203 if !editor.is_singleton(cx)
5204 || !editor
5205 .scrollbar_marker_state
5206 .should_refresh(scrollbar_layout.hitbox.size)
5207 {
5208 return;
5209 }
5210
5211 let scrollbar_layout = scrollbar_layout.clone();
5212 let background_highlights = editor.background_highlights.clone();
5213 let snapshot = layout.position_map.snapshot.clone();
5214 let theme = cx.theme().clone();
5215 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5216
5217 editor.scrollbar_marker_state.dirty = false;
5218 editor.scrollbar_marker_state.pending_refresh =
5219 Some(cx.spawn_in(window, async move |editor, cx| {
5220 let scrollbar_size = scrollbar_layout.hitbox.size;
5221 let scrollbar_markers = cx
5222 .background_spawn(async move {
5223 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5224 let mut marker_quads = Vec::new();
5225 if scrollbar_settings.git_diff {
5226 let marker_row_ranges =
5227 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5228 let start_display_row =
5229 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5230 .to_display_point(&snapshot.display_snapshot)
5231 .row();
5232 let mut end_display_row =
5233 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5234 .to_display_point(&snapshot.display_snapshot)
5235 .row();
5236 if end_display_row != start_display_row {
5237 end_display_row.0 -= 1;
5238 }
5239 let color = match &hunk.status().kind {
5240 DiffHunkStatusKind::Added => {
5241 theme.colors().version_control_added
5242 }
5243 DiffHunkStatusKind::Modified => {
5244 theme.colors().version_control_modified
5245 }
5246 DiffHunkStatusKind::Deleted => {
5247 theme.colors().version_control_deleted
5248 }
5249 };
5250 ColoredRange {
5251 start: start_display_row,
5252 end: end_display_row,
5253 color,
5254 }
5255 });
5256
5257 marker_quads.extend(
5258 scrollbar_layout
5259 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5260 );
5261 }
5262
5263 for (background_highlight_id, (_, background_ranges)) in
5264 background_highlights.iter()
5265 {
5266 let is_search_highlights = *background_highlight_id
5267 == TypeId::of::<BufferSearchHighlights>();
5268 let is_text_highlights = *background_highlight_id
5269 == TypeId::of::<SelectedTextHighlight>();
5270 let is_symbol_occurrences = *background_highlight_id
5271 == TypeId::of::<DocumentHighlightRead>()
5272 || *background_highlight_id
5273 == TypeId::of::<DocumentHighlightWrite>();
5274 if (is_search_highlights && scrollbar_settings.search_results)
5275 || (is_text_highlights && scrollbar_settings.selected_text)
5276 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5277 {
5278 let mut color = theme.status().info;
5279 if is_symbol_occurrences {
5280 color.fade_out(0.5);
5281 }
5282 let marker_row_ranges = background_ranges.iter().map(|range| {
5283 let display_start = range
5284 .start
5285 .to_display_point(&snapshot.display_snapshot);
5286 let display_end =
5287 range.end.to_display_point(&snapshot.display_snapshot);
5288 ColoredRange {
5289 start: display_start.row(),
5290 end: display_end.row(),
5291 color,
5292 }
5293 });
5294 marker_quads.extend(
5295 scrollbar_layout
5296 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5297 );
5298 }
5299 }
5300
5301 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5302 let diagnostics = snapshot
5303 .buffer_snapshot
5304 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5305 // Don't show diagnostics the user doesn't care about
5306 .filter(|diagnostic| {
5307 match (
5308 scrollbar_settings.diagnostics,
5309 diagnostic.diagnostic.severity,
5310 ) {
5311 (ScrollbarDiagnostics::All, _) => true,
5312 (
5313 ScrollbarDiagnostics::Error,
5314 DiagnosticSeverity::ERROR,
5315 ) => true,
5316 (
5317 ScrollbarDiagnostics::Warning,
5318 DiagnosticSeverity::ERROR
5319 | DiagnosticSeverity::WARNING,
5320 ) => true,
5321 (
5322 ScrollbarDiagnostics::Information,
5323 DiagnosticSeverity::ERROR
5324 | DiagnosticSeverity::WARNING
5325 | DiagnosticSeverity::INFORMATION,
5326 ) => true,
5327 (_, _) => false,
5328 }
5329 })
5330 // We want to sort by severity, in order to paint the most severe diagnostics last.
5331 .sorted_by_key(|diagnostic| {
5332 std::cmp::Reverse(diagnostic.diagnostic.severity)
5333 });
5334
5335 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5336 let start_display = diagnostic
5337 .range
5338 .start
5339 .to_display_point(&snapshot.display_snapshot);
5340 let end_display = diagnostic
5341 .range
5342 .end
5343 .to_display_point(&snapshot.display_snapshot);
5344 let color = match diagnostic.diagnostic.severity {
5345 DiagnosticSeverity::ERROR => theme.status().error,
5346 DiagnosticSeverity::WARNING => theme.status().warning,
5347 DiagnosticSeverity::INFORMATION => theme.status().info,
5348 _ => theme.status().hint,
5349 };
5350 ColoredRange {
5351 start: start_display.row(),
5352 end: end_display.row(),
5353 color,
5354 }
5355 });
5356 marker_quads.extend(
5357 scrollbar_layout
5358 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5359 );
5360 }
5361
5362 Arc::from(marker_quads)
5363 })
5364 .await;
5365
5366 editor.update(cx, |editor, cx| {
5367 editor.scrollbar_marker_state.markers = scrollbar_markers;
5368 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5369 editor.scrollbar_marker_state.pending_refresh = None;
5370 cx.notify();
5371 })?;
5372
5373 Ok(())
5374 }));
5375 });
5376 }
5377
5378 fn paint_highlighted_range(
5379 &self,
5380 range: Range<DisplayPoint>,
5381 color: Hsla,
5382 corner_radius: Pixels,
5383 line_end_overshoot: Pixels,
5384 layout: &EditorLayout,
5385 window: &mut Window,
5386 ) {
5387 let start_row = layout.visible_display_row_range.start;
5388 let end_row = layout.visible_display_row_range.end;
5389 if range.start != range.end {
5390 let row_range = if range.end.column() == 0 {
5391 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5392 } else {
5393 cmp::max(range.start.row(), start_row)
5394 ..cmp::min(range.end.row().next_row(), end_row)
5395 };
5396
5397 let highlighted_range = HighlightedRange {
5398 color,
5399 line_height: layout.position_map.line_height,
5400 corner_radius,
5401 start_y: layout.content_origin.y
5402 + row_range.start.as_f32() * layout.position_map.line_height
5403 - layout.position_map.scroll_pixel_position.y,
5404 lines: row_range
5405 .iter_rows()
5406 .map(|row| {
5407 let line_layout =
5408 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5409 HighlightedRangeLine {
5410 start_x: if row == range.start.row() {
5411 layout.content_origin.x
5412 + line_layout.x_for_index(range.start.column() as usize)
5413 - layout.position_map.scroll_pixel_position.x
5414 } else {
5415 layout.content_origin.x
5416 - layout.position_map.scroll_pixel_position.x
5417 },
5418 end_x: if row == range.end.row() {
5419 layout.content_origin.x
5420 + line_layout.x_for_index(range.end.column() as usize)
5421 - layout.position_map.scroll_pixel_position.x
5422 } else {
5423 layout.content_origin.x + line_layout.width + line_end_overshoot
5424 - layout.position_map.scroll_pixel_position.x
5425 },
5426 }
5427 })
5428 .collect(),
5429 };
5430
5431 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5432 }
5433 }
5434
5435 fn paint_inline_diagnostics(
5436 &mut self,
5437 layout: &mut EditorLayout,
5438 window: &mut Window,
5439 cx: &mut App,
5440 ) {
5441 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5442 inline_diagnostic.1.paint(window, cx);
5443 }
5444 }
5445
5446 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5447 if let Some(mut inline_blame) = layout.inline_blame.take() {
5448 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5449 inline_blame.paint(window, cx);
5450 })
5451 }
5452 }
5453
5454 fn paint_diff_hunk_controls(
5455 &mut self,
5456 layout: &mut EditorLayout,
5457 window: &mut Window,
5458 cx: &mut App,
5459 ) {
5460 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5461 diff_hunk_control.paint(window, cx);
5462 }
5463 }
5464
5465 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5466 for mut block in layout.blocks.drain(..) {
5467 block.element.paint(window, cx);
5468 }
5469 }
5470
5471 fn paint_inline_completion_popover(
5472 &mut self,
5473 layout: &mut EditorLayout,
5474 window: &mut Window,
5475 cx: &mut App,
5476 ) {
5477 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5478 inline_completion_popover.paint(window, cx);
5479 }
5480 }
5481
5482 fn paint_mouse_context_menu(
5483 &mut self,
5484 layout: &mut EditorLayout,
5485 window: &mut Window,
5486 cx: &mut App,
5487 ) {
5488 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5489 mouse_context_menu.paint(window, cx);
5490 }
5491 }
5492
5493 fn paint_scroll_wheel_listener(
5494 &mut self,
5495 layout: &EditorLayout,
5496 window: &mut Window,
5497 cx: &mut App,
5498 ) {
5499 window.on_mouse_event({
5500 let position_map = layout.position_map.clone();
5501 let editor = self.editor.clone();
5502 let hitbox = layout.hitbox.clone();
5503 let mut delta = ScrollDelta::default();
5504
5505 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5506 // accidentally turn off their scrolling.
5507 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5508
5509 move |event: &ScrollWheelEvent, phase, window, cx| {
5510 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5511 delta = delta.coalesce(event.delta);
5512 editor.update(cx, |editor, cx| {
5513 let position_map: &PositionMap = &position_map;
5514
5515 let line_height = position_map.line_height;
5516 let max_glyph_width = position_map.em_width;
5517 let (delta, axis) = match delta {
5518 gpui::ScrollDelta::Pixels(mut pixels) => {
5519 //Trackpad
5520 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5521 (pixels, axis)
5522 }
5523
5524 gpui::ScrollDelta::Lines(lines) => {
5525 //Not trackpad
5526 let pixels =
5527 point(lines.x * max_glyph_width, lines.y * line_height);
5528 (pixels, None)
5529 }
5530 };
5531
5532 let current_scroll_position = position_map.snapshot.scroll_position();
5533 let x = (current_scroll_position.x * max_glyph_width
5534 - (delta.x * scroll_sensitivity))
5535 / max_glyph_width;
5536 let y = (current_scroll_position.y * line_height
5537 - (delta.y * scroll_sensitivity))
5538 / line_height;
5539 let mut scroll_position =
5540 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5541 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5542 if forbid_vertical_scroll {
5543 scroll_position.y = current_scroll_position.y;
5544 }
5545
5546 if scroll_position != current_scroll_position {
5547 editor.scroll(scroll_position, axis, window, cx);
5548 cx.stop_propagation();
5549 } else if y < 0. {
5550 // Due to clamping, we may fail to detect cases of overscroll to the top;
5551 // We want the scroll manager to get an update in such cases and detect the change of direction
5552 // on the next frame.
5553 cx.notify();
5554 }
5555 });
5556 }
5557 }
5558 });
5559 }
5560
5561 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5562 self.paint_scroll_wheel_listener(layout, window, cx);
5563
5564 window.on_mouse_event({
5565 let position_map = layout.position_map.clone();
5566 let editor = self.editor.clone();
5567 let diff_hunk_range =
5568 layout
5569 .display_hunks
5570 .iter()
5571 .find_map(|(hunk, hunk_hitbox)| match hunk {
5572 DisplayDiffHunk::Folded { .. } => None,
5573 DisplayDiffHunk::Unfolded {
5574 multi_buffer_range, ..
5575 } => {
5576 if hunk_hitbox
5577 .as_ref()
5578 .map(|hitbox| hitbox.is_hovered(window))
5579 .unwrap_or(false)
5580 {
5581 Some(multi_buffer_range.clone())
5582 } else {
5583 None
5584 }
5585 }
5586 });
5587 let line_numbers = layout.line_numbers.clone();
5588
5589 move |event: &MouseDownEvent, phase, window, cx| {
5590 if phase == DispatchPhase::Bubble {
5591 match event.button {
5592 MouseButton::Left => editor.update(cx, |editor, cx| {
5593 let pending_mouse_down = editor
5594 .pending_mouse_down
5595 .get_or_insert_with(Default::default)
5596 .clone();
5597
5598 *pending_mouse_down.borrow_mut() = Some(event.clone());
5599
5600 Self::mouse_left_down(
5601 editor,
5602 event,
5603 diff_hunk_range.clone(),
5604 &position_map,
5605 line_numbers.as_ref(),
5606 window,
5607 cx,
5608 );
5609 }),
5610 MouseButton::Right => editor.update(cx, |editor, cx| {
5611 Self::mouse_right_down(editor, event, &position_map, window, cx);
5612 }),
5613 MouseButton::Middle => editor.update(cx, |editor, cx| {
5614 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5615 }),
5616 _ => {}
5617 };
5618 }
5619 }
5620 });
5621
5622 window.on_mouse_event({
5623 let editor = self.editor.clone();
5624 let position_map = layout.position_map.clone();
5625
5626 move |event: &MouseUpEvent, phase, window, cx| {
5627 if phase == DispatchPhase::Bubble {
5628 editor.update(cx, |editor, cx| {
5629 Self::mouse_up(editor, event, &position_map, window, cx)
5630 });
5631 }
5632 }
5633 });
5634
5635 window.on_mouse_event({
5636 let editor = self.editor.clone();
5637 let position_map = layout.position_map.clone();
5638 let mut captured_mouse_down = None;
5639
5640 move |event: &MouseUpEvent, phase, window, cx| match phase {
5641 // Clear the pending mouse down during the capture phase,
5642 // so that it happens even if another event handler stops
5643 // propagation.
5644 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5645 let pending_mouse_down = editor
5646 .pending_mouse_down
5647 .get_or_insert_with(Default::default)
5648 .clone();
5649
5650 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5651 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5652 captured_mouse_down = pending_mouse_down.take();
5653 window.refresh();
5654 }
5655 }),
5656 // Fire click handlers during the bubble phase.
5657 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5658 if let Some(mouse_down) = captured_mouse_down.take() {
5659 let event = ClickEvent {
5660 down: mouse_down,
5661 up: event.clone(),
5662 };
5663 Self::click(editor, &event, &position_map, window, cx);
5664 }
5665 }),
5666 }
5667 });
5668
5669 window.on_mouse_event({
5670 let position_map = layout.position_map.clone();
5671 let editor = self.editor.clone();
5672
5673 move |event: &MouseMoveEvent, phase, window, cx| {
5674 if phase == DispatchPhase::Bubble {
5675 editor.update(cx, |editor, cx| {
5676 if editor.hover_state.focused(window, cx) {
5677 return;
5678 }
5679 if event.pressed_button == Some(MouseButton::Left)
5680 || event.pressed_button == Some(MouseButton::Middle)
5681 {
5682 Self::mouse_dragged(editor, event, &position_map, window, cx)
5683 }
5684
5685 Self::mouse_moved(editor, event, &position_map, window, cx)
5686 });
5687 }
5688 }
5689 });
5690 }
5691
5692 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5693 bounds.top_right().x - self.style.scrollbar_width
5694 }
5695
5696 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5697 let style = &self.style;
5698 let font_size = style.text.font_size.to_pixels(window.rem_size());
5699 let layout = window
5700 .text_system()
5701 .shape_line(
5702 SharedString::from(" ".repeat(column)),
5703 font_size,
5704 &[TextRun {
5705 len: column,
5706 font: style.text.font(),
5707 color: Hsla::default(),
5708 background_color: None,
5709 underline: None,
5710 strikethrough: None,
5711 }],
5712 )
5713 .unwrap();
5714
5715 layout.width
5716 }
5717
5718 fn max_line_number_width(
5719 &self,
5720 snapshot: &EditorSnapshot,
5721 window: &mut Window,
5722 cx: &mut App,
5723 ) -> Pixels {
5724 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5725 self.column_pixels(digit_count as usize, window, cx)
5726 }
5727
5728 fn shape_line_number(
5729 &self,
5730 text: SharedString,
5731 color: Hsla,
5732 window: &mut Window,
5733 ) -> anyhow::Result<ShapedLine> {
5734 let run = TextRun {
5735 len: text.len(),
5736 font: self.style.text.font(),
5737 color,
5738 background_color: None,
5739 underline: None,
5740 strikethrough: None,
5741 };
5742 window.text_system().shape_line(
5743 text,
5744 self.style.text.font_size.to_pixels(window.rem_size()),
5745 &[run],
5746 )
5747 }
5748
5749 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5750 let unstaged = status.has_secondary_hunk();
5751 let unstaged_hollow = ProjectSettings::get_global(cx)
5752 .git
5753 .hunk_style
5754 .map_or(false, |style| {
5755 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5756 });
5757
5758 unstaged == unstaged_hollow
5759 }
5760}
5761
5762fn header_jump_data(
5763 snapshot: &EditorSnapshot,
5764 block_row_start: DisplayRow,
5765 height: u32,
5766 for_excerpt: &ExcerptInfo,
5767) -> JumpData {
5768 let range = &for_excerpt.range;
5769 let buffer = &for_excerpt.buffer;
5770 let jump_anchor = range
5771 .primary
5772 .as_ref()
5773 .map_or(range.context.start, |primary| primary.start);
5774
5775 let excerpt_start = range.context.start;
5776 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5777 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5778 0
5779 } else {
5780 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5781 jump_position.row.saturating_sub(excerpt_start_point.row)
5782 };
5783
5784 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5785 .saturating_sub(
5786 snapshot
5787 .scroll_anchor
5788 .scroll_position(&snapshot.display_snapshot)
5789 .y as u32,
5790 );
5791
5792 JumpData::MultiBufferPoint {
5793 excerpt_id: for_excerpt.id,
5794 anchor: jump_anchor,
5795 position: jump_position,
5796 line_offset_from_top,
5797 }
5798}
5799
5800pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5801
5802impl AcceptEditPredictionBinding {
5803 pub fn keystroke(&self) -> Option<&Keystroke> {
5804 if let Some(binding) = self.0.as_ref() {
5805 match &binding.keystrokes() {
5806 [keystroke] => Some(keystroke),
5807 _ => None,
5808 }
5809 } else {
5810 None
5811 }
5812 }
5813}
5814
5815fn prepaint_gutter_button(
5816 button: IconButton,
5817 row: DisplayRow,
5818 line_height: Pixels,
5819 gutter_dimensions: &GutterDimensions,
5820 scroll_pixel_position: gpui::Point<Pixels>,
5821 gutter_hitbox: &Hitbox,
5822 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5823 window: &mut Window,
5824 cx: &mut App,
5825) -> AnyElement {
5826 let mut button = button.into_any_element();
5827
5828 let available_space = size(
5829 AvailableSpace::MinContent,
5830 AvailableSpace::Definite(line_height),
5831 );
5832 let indicator_size = button.layout_as_root(available_space, window, cx);
5833
5834 let blame_width = gutter_dimensions.git_blame_entries_width;
5835 let gutter_width = display_hunks
5836 .binary_search_by(|(hunk, _)| match hunk {
5837 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5838 DisplayDiffHunk::Unfolded {
5839 display_row_range, ..
5840 } => {
5841 if display_row_range.end <= row {
5842 Ordering::Less
5843 } else if display_row_range.start > row {
5844 Ordering::Greater
5845 } else {
5846 Ordering::Equal
5847 }
5848 }
5849 })
5850 .ok()
5851 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5852 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5853
5854 let mut x = left_offset;
5855 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5856 - indicator_size.width
5857 - left_offset;
5858 x += available_width / 2.;
5859
5860 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5861 y += (line_height - indicator_size.height) / 2.;
5862
5863 button.prepaint_as_root(
5864 gutter_hitbox.origin + point(x, y),
5865 available_space,
5866 window,
5867 cx,
5868 );
5869 button
5870}
5871
5872fn render_inline_blame_entry(
5873 editor: Entity<Editor>,
5874 blame: &gpui::Entity<GitBlame>,
5875 blame_entry: BlameEntry,
5876 style: &EditorStyle,
5877 cx: &mut App,
5878) -> AnyElement {
5879 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5880
5881 let author = blame_entry.author.as_deref().unwrap_or_default();
5882 let summary_enabled = ProjectSettings::get_global(cx)
5883 .git
5884 .show_inline_commit_summary();
5885
5886 let text = match blame_entry.summary.as_ref() {
5887 Some(summary) if summary_enabled => {
5888 format!("{}, {} - {}", author, relative_timestamp, summary)
5889 }
5890 _ => format!("{}, {}", author, relative_timestamp),
5891 };
5892 let blame = blame.clone();
5893 let blame_entry = blame_entry.clone();
5894
5895 h_flex()
5896 .id("inline-blame")
5897 .w_full()
5898 .font_family(style.text.font().family)
5899 .text_color(cx.theme().status().hint)
5900 .line_height(style.text.line_height)
5901 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5902 .child(text)
5903 .gap_2()
5904 .hoverable_tooltip(move |window, cx| {
5905 let details = blame.read(cx).details_for_entry(&blame_entry);
5906 let tooltip =
5907 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5908 editor.update(cx, |editor, _| {
5909 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5910 });
5911 tooltip.into()
5912 })
5913 .into_any()
5914}
5915
5916fn render_blame_entry(
5917 ix: usize,
5918 blame: &gpui::Entity<GitBlame>,
5919 blame_entry: BlameEntry,
5920 style: &EditorStyle,
5921 last_used_color: &mut Option<(PlayerColor, Oid)>,
5922 editor: Entity<Editor>,
5923 cx: &mut App,
5924) -> AnyElement {
5925 let mut sha_color = cx
5926 .theme()
5927 .players()
5928 .color_for_participant(blame_entry.sha.into());
5929 // If the last color we used is the same as the one we get for this line, but
5930 // the commit SHAs are different, then we try again to get a different color.
5931 match *last_used_color {
5932 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5933 let index: u32 = blame_entry.sha.into();
5934 sha_color = cx.theme().players().color_for_participant(index + 1);
5935 }
5936 _ => {}
5937 };
5938 last_used_color.replace((sha_color, blame_entry.sha));
5939
5940 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5941
5942 let short_commit_id = blame_entry.sha.display_short();
5943
5944 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5945 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5946 let details = blame.read(cx).details_for_entry(&blame_entry);
5947
5948 h_flex()
5949 .w_full()
5950 .justify_between()
5951 .font_family(style.text.font().family)
5952 .line_height(style.text.line_height)
5953 .id(("blame", ix))
5954 .text_color(cx.theme().status().hint)
5955 .pr_2()
5956 .gap_2()
5957 .child(
5958 h_flex()
5959 .items_center()
5960 .gap_2()
5961 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5962 .child(name),
5963 )
5964 .child(relative_timestamp)
5965 .on_mouse_down(MouseButton::Right, {
5966 let blame_entry = blame_entry.clone();
5967 let details = details.clone();
5968 move |event, window, cx| {
5969 deploy_blame_entry_context_menu(
5970 &blame_entry,
5971 details.as_ref(),
5972 editor.clone(),
5973 event.position,
5974 window,
5975 cx,
5976 );
5977 }
5978 })
5979 .hover(|style| style.bg(cx.theme().colors().element_hover))
5980 .when_some(
5981 details
5982 .as_ref()
5983 .and_then(|details| details.permalink.clone()),
5984 |this, url| {
5985 this.cursor_pointer().on_click(move |_, _, cx| {
5986 cx.stop_propagation();
5987 cx.open_url(url.as_str())
5988 })
5989 },
5990 )
5991 .hoverable_tooltip(move |window, cx| {
5992 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5993 .into()
5994 })
5995 .into_any()
5996}
5997
5998fn deploy_blame_entry_context_menu(
5999 blame_entry: &BlameEntry,
6000 details: Option<&ParsedCommitMessage>,
6001 editor: Entity<Editor>,
6002 position: gpui::Point<Pixels>,
6003 window: &mut Window,
6004 cx: &mut App,
6005) {
6006 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6007 let sha = format!("{}", blame_entry.sha);
6008 menu.on_blur_subscription(Subscription::new(|| {}))
6009 .entry("Copy commit SHA", None, move |_, cx| {
6010 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6011 })
6012 .when_some(
6013 details.and_then(|details| details.permalink.clone()),
6014 |this, url| {
6015 this.entry("Open permalink", None, move |_, cx| {
6016 cx.open_url(url.as_str())
6017 })
6018 },
6019 )
6020 });
6021
6022 editor.update(cx, move |editor, cx| {
6023 editor.mouse_context_menu = Some(MouseContextMenu::new(
6024 MenuPosition::PinnedToScreen(position),
6025 context_menu,
6026 window,
6027 cx,
6028 ));
6029 cx.notify();
6030 });
6031}
6032
6033#[derive(Debug)]
6034pub(crate) struct LineWithInvisibles {
6035 fragments: SmallVec<[LineFragment; 1]>,
6036 invisibles: Vec<Invisible>,
6037 len: usize,
6038 pub(crate) width: Pixels,
6039 font_size: Pixels,
6040}
6041
6042#[allow(clippy::large_enum_variant)]
6043enum LineFragment {
6044 Text(ShapedLine),
6045 Element {
6046 element: Option<AnyElement>,
6047 size: Size<Pixels>,
6048 len: usize,
6049 },
6050}
6051
6052impl fmt::Debug for LineFragment {
6053 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6054 match self {
6055 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6056 LineFragment::Element { size, len, .. } => f
6057 .debug_struct("Element")
6058 .field("size", size)
6059 .field("len", len)
6060 .finish(),
6061 }
6062 }
6063}
6064
6065impl LineWithInvisibles {
6066 fn from_chunks<'a>(
6067 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6068 editor_style: &EditorStyle,
6069 max_line_len: usize,
6070 max_line_count: usize,
6071 editor_mode: EditorMode,
6072 text_width: Pixels,
6073 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6074 window: &mut Window,
6075 cx: &mut App,
6076 ) -> Vec<Self> {
6077 let text_style = &editor_style.text;
6078 let mut layouts = Vec::with_capacity(max_line_count);
6079 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6080 let mut line = String::new();
6081 let mut invisibles = Vec::new();
6082 let mut width = Pixels::ZERO;
6083 let mut len = 0;
6084 let mut styles = Vec::new();
6085 let mut non_whitespace_added = false;
6086 let mut row = 0;
6087 let mut line_exceeded_max_len = false;
6088 let font_size = text_style.font_size.to_pixels(window.rem_size());
6089
6090 let ellipsis = SharedString::from("⋯");
6091
6092 for highlighted_chunk in chunks.chain([HighlightedChunk {
6093 text: "\n",
6094 style: None,
6095 is_tab: false,
6096 replacement: None,
6097 }]) {
6098 if let Some(replacement) = highlighted_chunk.replacement {
6099 if !line.is_empty() {
6100 let shaped_line = window
6101 .text_system()
6102 .shape_line(line.clone().into(), font_size, &styles)
6103 .unwrap();
6104 width += shaped_line.width;
6105 len += shaped_line.len;
6106 fragments.push(LineFragment::Text(shaped_line));
6107 line.clear();
6108 styles.clear();
6109 }
6110
6111 match replacement {
6112 ChunkReplacement::Renderer(renderer) => {
6113 let available_width = if renderer.constrain_width {
6114 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6115 ellipsis.clone()
6116 } else {
6117 SharedString::from(Arc::from(highlighted_chunk.text))
6118 };
6119 let shaped_line = window
6120 .text_system()
6121 .shape_line(
6122 chunk,
6123 font_size,
6124 &[text_style.to_run(highlighted_chunk.text.len())],
6125 )
6126 .unwrap();
6127 AvailableSpace::Definite(shaped_line.width)
6128 } else {
6129 AvailableSpace::MinContent
6130 };
6131
6132 let mut element = (renderer.render)(&mut ChunkRendererContext {
6133 context: cx,
6134 window,
6135 max_width: text_width,
6136 });
6137 let line_height = text_style.line_height_in_pixels(window.rem_size());
6138 let size = element.layout_as_root(
6139 size(available_width, AvailableSpace::Definite(line_height)),
6140 window,
6141 cx,
6142 );
6143
6144 width += size.width;
6145 len += highlighted_chunk.text.len();
6146 fragments.push(LineFragment::Element {
6147 element: Some(element),
6148 size,
6149 len: highlighted_chunk.text.len(),
6150 });
6151 }
6152 ChunkReplacement::Str(x) => {
6153 let text_style = if let Some(style) = highlighted_chunk.style {
6154 Cow::Owned(text_style.clone().highlight(style))
6155 } else {
6156 Cow::Borrowed(text_style)
6157 };
6158
6159 let run = TextRun {
6160 len: x.len(),
6161 font: text_style.font(),
6162 color: text_style.color,
6163 background_color: text_style.background_color,
6164 underline: text_style.underline,
6165 strikethrough: text_style.strikethrough,
6166 };
6167 let line_layout = window
6168 .text_system()
6169 .shape_line(x, font_size, &[run])
6170 .unwrap()
6171 .with_len(highlighted_chunk.text.len());
6172
6173 width += line_layout.width;
6174 len += highlighted_chunk.text.len();
6175 fragments.push(LineFragment::Text(line_layout))
6176 }
6177 }
6178 } else {
6179 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6180 if ix > 0 {
6181 let shaped_line = window
6182 .text_system()
6183 .shape_line(line.clone().into(), font_size, &styles)
6184 .unwrap();
6185 width += shaped_line.width;
6186 len += shaped_line.len;
6187 fragments.push(LineFragment::Text(shaped_line));
6188 layouts.push(Self {
6189 width: mem::take(&mut width),
6190 len: mem::take(&mut len),
6191 fragments: mem::take(&mut fragments),
6192 invisibles: std::mem::take(&mut invisibles),
6193 font_size,
6194 });
6195
6196 line.clear();
6197 styles.clear();
6198 row += 1;
6199 line_exceeded_max_len = false;
6200 non_whitespace_added = false;
6201 if row == max_line_count {
6202 return layouts;
6203 }
6204 }
6205
6206 if !line_chunk.is_empty() && !line_exceeded_max_len {
6207 let text_style = if let Some(style) = highlighted_chunk.style {
6208 Cow::Owned(text_style.clone().highlight(style))
6209 } else {
6210 Cow::Borrowed(text_style)
6211 };
6212
6213 if line.len() + line_chunk.len() > max_line_len {
6214 let mut chunk_len = max_line_len - line.len();
6215 while !line_chunk.is_char_boundary(chunk_len) {
6216 chunk_len -= 1;
6217 }
6218 line_chunk = &line_chunk[..chunk_len];
6219 line_exceeded_max_len = true;
6220 }
6221
6222 styles.push(TextRun {
6223 len: line_chunk.len(),
6224 font: text_style.font(),
6225 color: text_style.color,
6226 background_color: text_style.background_color,
6227 underline: text_style.underline,
6228 strikethrough: text_style.strikethrough,
6229 });
6230
6231 if editor_mode == EditorMode::Full {
6232 // Line wrap pads its contents with fake whitespaces,
6233 // avoid printing them
6234 let is_soft_wrapped = is_row_soft_wrapped(row);
6235 if highlighted_chunk.is_tab {
6236 if non_whitespace_added || !is_soft_wrapped {
6237 invisibles.push(Invisible::Tab {
6238 line_start_offset: line.len(),
6239 line_end_offset: line.len() + line_chunk.len(),
6240 });
6241 }
6242 } else {
6243 invisibles.extend(line_chunk.char_indices().filter_map(
6244 |(index, c)| {
6245 let is_whitespace = c.is_whitespace();
6246 non_whitespace_added |= !is_whitespace;
6247 if is_whitespace
6248 && (non_whitespace_added || !is_soft_wrapped)
6249 {
6250 Some(Invisible::Whitespace {
6251 line_offset: line.len() + index,
6252 })
6253 } else {
6254 None
6255 }
6256 },
6257 ))
6258 }
6259 }
6260
6261 line.push_str(line_chunk);
6262 }
6263 }
6264 }
6265 }
6266
6267 layouts
6268 }
6269
6270 fn prepaint(
6271 &mut self,
6272 line_height: Pixels,
6273 scroll_pixel_position: gpui::Point<Pixels>,
6274 row: DisplayRow,
6275 content_origin: gpui::Point<Pixels>,
6276 line_elements: &mut SmallVec<[AnyElement; 1]>,
6277 window: &mut Window,
6278 cx: &mut App,
6279 ) {
6280 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6281 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6282 for fragment in &mut self.fragments {
6283 match fragment {
6284 LineFragment::Text(line) => {
6285 fragment_origin.x += line.width;
6286 }
6287 LineFragment::Element { element, size, .. } => {
6288 let mut element = element
6289 .take()
6290 .expect("you can't prepaint LineWithInvisibles twice");
6291
6292 // Center the element vertically within the line.
6293 let mut element_origin = fragment_origin;
6294 element_origin.y += (line_height - size.height) / 2.;
6295 element.prepaint_at(element_origin, window, cx);
6296 line_elements.push(element);
6297
6298 fragment_origin.x += size.width;
6299 }
6300 }
6301 }
6302 }
6303
6304 fn draw(
6305 &self,
6306 layout: &EditorLayout,
6307 row: DisplayRow,
6308 content_origin: gpui::Point<Pixels>,
6309 whitespace_setting: ShowWhitespaceSetting,
6310 selection_ranges: &[Range<DisplayPoint>],
6311 window: &mut Window,
6312 cx: &mut App,
6313 ) {
6314 let line_height = layout.position_map.line_height;
6315 let line_y = line_height
6316 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6317
6318 let mut fragment_origin =
6319 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6320
6321 for fragment in &self.fragments {
6322 match fragment {
6323 LineFragment::Text(line) => {
6324 line.paint(fragment_origin, line_height, window, cx)
6325 .log_err();
6326 fragment_origin.x += line.width;
6327 }
6328 LineFragment::Element { size, .. } => {
6329 fragment_origin.x += size.width;
6330 }
6331 }
6332 }
6333
6334 self.draw_invisibles(
6335 selection_ranges,
6336 layout,
6337 content_origin,
6338 line_y,
6339 row,
6340 line_height,
6341 whitespace_setting,
6342 window,
6343 cx,
6344 );
6345 }
6346
6347 fn draw_background(
6348 &self,
6349 layout: &EditorLayout,
6350 row: DisplayRow,
6351 content_origin: gpui::Point<Pixels>,
6352 window: &mut Window,
6353 cx: &mut App,
6354 ) {
6355 let line_height = layout.position_map.line_height;
6356 let line_y = line_height
6357 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6358
6359 let mut fragment_origin =
6360 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6361
6362 for fragment in &self.fragments {
6363 match fragment {
6364 LineFragment::Text(line) => {
6365 line.paint_background(fragment_origin, line_height, window, cx)
6366 .log_err();
6367 fragment_origin.x += line.width;
6368 }
6369 LineFragment::Element { size, .. } => {
6370 fragment_origin.x += size.width;
6371 }
6372 }
6373 }
6374 }
6375
6376 fn draw_invisibles(
6377 &self,
6378 selection_ranges: &[Range<DisplayPoint>],
6379 layout: &EditorLayout,
6380 content_origin: gpui::Point<Pixels>,
6381 line_y: Pixels,
6382 row: DisplayRow,
6383 line_height: Pixels,
6384 whitespace_setting: ShowWhitespaceSetting,
6385 window: &mut Window,
6386 cx: &mut App,
6387 ) {
6388 let extract_whitespace_info = |invisible: &Invisible| {
6389 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6390 Invisible::Tab {
6391 line_start_offset,
6392 line_end_offset,
6393 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6394 Invisible::Whitespace { line_offset } => {
6395 (*line_offset, line_offset + 1, &layout.space_invisible)
6396 }
6397 };
6398
6399 let x_offset = self.x_for_index(token_offset);
6400 let invisible_offset =
6401 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6402 let origin = content_origin
6403 + gpui::point(
6404 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6405 line_y,
6406 );
6407
6408 (
6409 [token_offset, token_end_offset],
6410 Box::new(move |window: &mut Window, cx: &mut App| {
6411 invisible_symbol
6412 .paint(origin, line_height, window, cx)
6413 .log_err();
6414 }),
6415 )
6416 };
6417
6418 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6419 match whitespace_setting {
6420 ShowWhitespaceSetting::None => (),
6421 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6422 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6423 let invisible_point = DisplayPoint::new(row, start as u32);
6424 if !selection_ranges
6425 .iter()
6426 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6427 {
6428 return;
6429 }
6430
6431 paint(window, cx);
6432 }),
6433
6434 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6435 // - It is a tab
6436 // - It is adjacent to an edge (start or end)
6437 // - It is adjacent to a whitespace (left or right)
6438 ShowWhitespaceSetting::Boundary => {
6439 // 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
6440 // the above cases.
6441 // Note: We zip in the original `invisibles` to check for tab equality
6442 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6443 for (([start, end], paint), invisible) in
6444 invisible_iter.zip_eq(self.invisibles.iter())
6445 {
6446 let should_render = match (&last_seen, invisible) {
6447 (_, Invisible::Tab { .. }) => true,
6448 (Some((_, last_end, _)), _) => *last_end == start,
6449 _ => false,
6450 };
6451
6452 if should_render || start == 0 || end == self.len {
6453 paint(window, cx);
6454
6455 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6456 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6457 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6458 // Note that we need to make sure that the last one is actually adjacent
6459 if !should_render_last && last_end == start {
6460 paint_last(window, cx);
6461 }
6462 }
6463 }
6464
6465 // Manually render anything within a selection
6466 let invisible_point = DisplayPoint::new(row, start as u32);
6467 if selection_ranges.iter().any(|region| {
6468 region.start <= invisible_point && invisible_point < region.end
6469 }) {
6470 paint(window, cx);
6471 }
6472
6473 last_seen = Some((should_render, end, paint));
6474 }
6475 }
6476 }
6477 }
6478
6479 pub fn x_for_index(&self, index: usize) -> Pixels {
6480 let mut fragment_start_x = Pixels::ZERO;
6481 let mut fragment_start_index = 0;
6482
6483 for fragment in &self.fragments {
6484 match fragment {
6485 LineFragment::Text(shaped_line) => {
6486 let fragment_end_index = fragment_start_index + shaped_line.len;
6487 if index < fragment_end_index {
6488 return fragment_start_x
6489 + shaped_line.x_for_index(index - fragment_start_index);
6490 }
6491 fragment_start_x += shaped_line.width;
6492 fragment_start_index = fragment_end_index;
6493 }
6494 LineFragment::Element { len, size, .. } => {
6495 let fragment_end_index = fragment_start_index + len;
6496 if index < fragment_end_index {
6497 return fragment_start_x;
6498 }
6499 fragment_start_x += size.width;
6500 fragment_start_index = fragment_end_index;
6501 }
6502 }
6503 }
6504
6505 fragment_start_x
6506 }
6507
6508 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6509 let mut fragment_start_x = Pixels::ZERO;
6510 let mut fragment_start_index = 0;
6511
6512 for fragment in &self.fragments {
6513 match fragment {
6514 LineFragment::Text(shaped_line) => {
6515 let fragment_end_x = fragment_start_x + shaped_line.width;
6516 if x < fragment_end_x {
6517 return Some(
6518 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6519 );
6520 }
6521 fragment_start_x = fragment_end_x;
6522 fragment_start_index += shaped_line.len;
6523 }
6524 LineFragment::Element { len, size, .. } => {
6525 let fragment_end_x = fragment_start_x + size.width;
6526 if x < fragment_end_x {
6527 return Some(fragment_start_index);
6528 }
6529 fragment_start_index += len;
6530 fragment_start_x = fragment_end_x;
6531 }
6532 }
6533 }
6534
6535 None
6536 }
6537
6538 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6539 let mut fragment_start_index = 0;
6540
6541 for fragment in &self.fragments {
6542 match fragment {
6543 LineFragment::Text(shaped_line) => {
6544 let fragment_end_index = fragment_start_index + shaped_line.len;
6545 if index < fragment_end_index {
6546 return shaped_line.font_id_for_index(index - fragment_start_index);
6547 }
6548 fragment_start_index = fragment_end_index;
6549 }
6550 LineFragment::Element { len, .. } => {
6551 let fragment_end_index = fragment_start_index + len;
6552 if index < fragment_end_index {
6553 return None;
6554 }
6555 fragment_start_index = fragment_end_index;
6556 }
6557 }
6558 }
6559
6560 None
6561 }
6562}
6563
6564#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6565enum Invisible {
6566 /// A tab character
6567 ///
6568 /// A tab character is internally represented by spaces (configured by the user's tab width)
6569 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6570 /// adjacency checks.
6571 Tab {
6572 line_start_offset: usize,
6573 line_end_offset: usize,
6574 },
6575 Whitespace {
6576 line_offset: usize,
6577 },
6578}
6579
6580impl EditorElement {
6581 /// Returns the rem size to use when rendering the [`EditorElement`].
6582 ///
6583 /// This allows UI elements to scale based on the `buffer_font_size`.
6584 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6585 match self.editor.read(cx).mode {
6586 EditorMode::Full => {
6587 let buffer_font_size = self.style.text.font_size;
6588 match buffer_font_size {
6589 AbsoluteLength::Pixels(pixels) => {
6590 let rem_size_scale = {
6591 // Our default UI font size is 14px on a 16px base scale.
6592 // This means the default UI font size is 0.875rems.
6593 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6594
6595 // We then determine the delta between a single rem and the default font
6596 // size scale.
6597 let default_font_size_delta = 1. - default_font_size_scale;
6598
6599 // Finally, we add this delta to 1rem to get the scale factor that
6600 // should be used to scale up the UI.
6601 1. + default_font_size_delta
6602 };
6603
6604 Some(pixels * rem_size_scale)
6605 }
6606 AbsoluteLength::Rems(rems) => {
6607 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6608 }
6609 }
6610 }
6611 // We currently use single-line and auto-height editors in UI contexts,
6612 // so we don't want to scale everything with the buffer font size, as it
6613 // ends up looking off.
6614 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6615 }
6616 }
6617}
6618
6619impl Element for EditorElement {
6620 type RequestLayoutState = ();
6621 type PrepaintState = EditorLayout;
6622
6623 fn id(&self) -> Option<ElementId> {
6624 None
6625 }
6626
6627 fn request_layout(
6628 &mut self,
6629 _: Option<&GlobalElementId>,
6630 window: &mut Window,
6631 cx: &mut App,
6632 ) -> (gpui::LayoutId, ()) {
6633 let rem_size = self.rem_size(cx);
6634 window.with_rem_size(rem_size, |window| {
6635 self.editor.update(cx, |editor, cx| {
6636 editor.set_style(self.style.clone(), window, cx);
6637
6638 let layout_id = match editor.mode {
6639 EditorMode::SingleLine { auto_width } => {
6640 let rem_size = window.rem_size();
6641
6642 let height = self.style.text.line_height_in_pixels(rem_size);
6643 if auto_width {
6644 let editor_handle = cx.entity().clone();
6645 let style = self.style.clone();
6646 window.request_measured_layout(
6647 Style::default(),
6648 move |_, _, window, cx| {
6649 let editor_snapshot = editor_handle
6650 .update(cx, |editor, cx| editor.snapshot(window, cx));
6651 let line = Self::layout_lines(
6652 DisplayRow(0)..DisplayRow(1),
6653 &editor_snapshot,
6654 &style,
6655 px(f32::MAX),
6656 |_| false, // Single lines never soft wrap
6657 window,
6658 cx,
6659 )
6660 .pop()
6661 .unwrap();
6662
6663 let font_id =
6664 window.text_system().resolve_font(&style.text.font());
6665 let font_size =
6666 style.text.font_size.to_pixels(window.rem_size());
6667 let em_width =
6668 window.text_system().em_width(font_id, font_size).unwrap();
6669
6670 size(line.width + em_width, height)
6671 },
6672 )
6673 } else {
6674 let mut style = Style::default();
6675 style.size.height = height.into();
6676 style.size.width = relative(1.).into();
6677 window.request_layout(style, None, cx)
6678 }
6679 }
6680 EditorMode::AutoHeight { max_lines } => {
6681 let editor_handle = cx.entity().clone();
6682 let max_line_number_width =
6683 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6684 window.request_measured_layout(
6685 Style::default(),
6686 move |known_dimensions, available_space, window, cx| {
6687 editor_handle
6688 .update(cx, |editor, cx| {
6689 compute_auto_height_layout(
6690 editor,
6691 max_lines,
6692 max_line_number_width,
6693 known_dimensions,
6694 available_space.width,
6695 window,
6696 cx,
6697 )
6698 })
6699 .unwrap_or_default()
6700 },
6701 )
6702 }
6703 EditorMode::Full => {
6704 let mut style = Style::default();
6705 style.size.width = relative(1.).into();
6706 style.size.height = relative(1.).into();
6707 window.request_layout(style, None, cx)
6708 }
6709 };
6710
6711 (layout_id, ())
6712 })
6713 })
6714 }
6715
6716 fn prepaint(
6717 &mut self,
6718 _: Option<&GlobalElementId>,
6719 bounds: Bounds<Pixels>,
6720 _: &mut Self::RequestLayoutState,
6721 window: &mut Window,
6722 cx: &mut App,
6723 ) -> Self::PrepaintState {
6724 let text_style = TextStyleRefinement {
6725 font_size: Some(self.style.text.font_size),
6726 line_height: Some(self.style.text.line_height),
6727 ..Default::default()
6728 };
6729 let focus_handle = self.editor.focus_handle(cx);
6730 window.set_view_id(self.editor.entity_id());
6731 window.set_focus_handle(&focus_handle, cx);
6732
6733 let rem_size = self.rem_size(cx);
6734 window.with_rem_size(rem_size, |window| {
6735 window.with_text_style(Some(text_style), |window| {
6736 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6737 let mut snapshot = self
6738 .editor
6739 .update(cx, |editor, cx| editor.snapshot(window, cx));
6740 let style = self.style.clone();
6741
6742 let font_id = window.text_system().resolve_font(&style.text.font());
6743 let font_size = style.text.font_size.to_pixels(window.rem_size());
6744 let line_height = style.text.line_height_in_pixels(window.rem_size());
6745 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6746 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6747
6748 let letter_size = size(em_width, line_height);
6749
6750 let gutter_dimensions = snapshot
6751 .gutter_dimensions(
6752 font_id,
6753 font_size,
6754 self.max_line_number_width(&snapshot, window, cx),
6755 cx,
6756 )
6757 .unwrap_or_default();
6758 let text_width = bounds.size.width - gutter_dimensions.width;
6759
6760 let editor_width =
6761 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6762
6763 snapshot = self.editor.update(cx, |editor, cx| {
6764 editor.last_bounds = Some(bounds);
6765 editor.gutter_dimensions = gutter_dimensions;
6766 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6767
6768 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6769 snapshot
6770 } else {
6771 let wrap_width = match editor.soft_wrap_mode(cx) {
6772 SoftWrap::GitDiff => None,
6773 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6774 SoftWrap::EditorWidth => Some(editor_width),
6775 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6776 SoftWrap::Bounded(column) => {
6777 Some(editor_width.min(column as f32 * em_advance))
6778 }
6779 };
6780
6781 if editor.set_wrap_width(wrap_width, cx) {
6782 editor.snapshot(window, cx)
6783 } else {
6784 snapshot
6785 }
6786 }
6787 });
6788
6789 let wrap_guides = self
6790 .editor
6791 .read(cx)
6792 .wrap_guides(cx)
6793 .iter()
6794 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6795 .collect::<SmallVec<[_; 2]>>();
6796
6797 let hitbox = window.insert_hitbox(bounds, false);
6798 let gutter_hitbox =
6799 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6800 let text_hitbox = window.insert_hitbox(
6801 Bounds {
6802 origin: gutter_hitbox.top_right(),
6803 size: size(text_width, bounds.size.height),
6804 },
6805 false,
6806 );
6807 // Offset the content_bounds from the text_bounds by the gutter margin (which
6808 // is roughly half a character wide) to make hit testing work more like how we want.
6809 let content_origin =
6810 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6811
6812 let scrollbar_bounds =
6813 Bounds::from_corners(content_origin, bounds.bottom_right());
6814
6815 let height_in_lines = scrollbar_bounds.size.height / line_height;
6816
6817 // NOTE: The max row number in the current file, minus one
6818 let max_row = snapshot.max_point().row().as_f32();
6819
6820 // NOTE: The max scroll position for the top of the window
6821 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6822 (max_row - height_in_lines + 1.).max(0.)
6823 } else {
6824 let settings = EditorSettings::get_global(cx);
6825 match settings.scroll_beyond_last_line {
6826 ScrollBeyondLastLine::OnePage => max_row,
6827 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6828 ScrollBeyondLastLine::VerticalScrollMargin => {
6829 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6830 .max(0.)
6831 }
6832 }
6833 };
6834
6835 // TODO: Autoscrolling for both axes
6836 let mut autoscroll_request = None;
6837 let mut autoscroll_containing_element = false;
6838 let mut autoscroll_horizontally = false;
6839 self.editor.update(cx, |editor, cx| {
6840 autoscroll_request = editor.autoscroll_request();
6841 autoscroll_containing_element =
6842 autoscroll_request.is_some() || editor.has_pending_selection();
6843 // TODO: Is this horizontal or vertical?!
6844 autoscroll_horizontally = editor.autoscroll_vertically(
6845 bounds,
6846 line_height,
6847 max_scroll_top,
6848 window,
6849 cx,
6850 );
6851 snapshot = editor.snapshot(window, cx);
6852 });
6853
6854 let mut scroll_position = snapshot.scroll_position();
6855 // The scroll position is a fractional point, the whole number of which represents
6856 // the top of the window in terms of display rows.
6857 let start_row = DisplayRow(scroll_position.y as u32);
6858 let max_row = snapshot.max_point().row();
6859 let end_row = cmp::min(
6860 (scroll_position.y + height_in_lines).ceil() as u32,
6861 max_row.next_row().0,
6862 );
6863 let end_row = DisplayRow(end_row);
6864
6865 let row_infos = snapshot
6866 .row_infos(start_row)
6867 .take((start_row..end_row).len())
6868 .collect::<Vec<RowInfo>>();
6869 let is_row_soft_wrapped = |row: usize| {
6870 row_infos
6871 .get(row)
6872 .map_or(true, |info| info.buffer_row.is_none())
6873 };
6874
6875 let start_anchor = if start_row == Default::default() {
6876 Anchor::min()
6877 } else {
6878 snapshot.buffer_snapshot.anchor_before(
6879 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6880 )
6881 };
6882 let end_anchor = if end_row > max_row {
6883 Anchor::max()
6884 } else {
6885 snapshot.buffer_snapshot.anchor_before(
6886 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6887 )
6888 };
6889
6890 let mut highlighted_rows = self
6891 .editor
6892 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6893
6894 let is_light = cx.theme().appearance().is_light();
6895
6896 for (ix, row_info) in row_infos.iter().enumerate() {
6897 let Some(diff_status) = row_info.diff_status else {
6898 continue;
6899 };
6900
6901 let background_color = match diff_status.kind {
6902 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6903 DiffHunkStatusKind::Deleted => {
6904 cx.theme().colors().version_control_deleted
6905 }
6906 DiffHunkStatusKind::Modified => {
6907 debug_panic!("modified diff status for row info");
6908 continue;
6909 }
6910 };
6911
6912 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6913
6914 let hollow_highlight = LineHighlight {
6915 background: (background_color.opacity(if is_light {
6916 0.08
6917 } else {
6918 0.06
6919 }))
6920 .into(),
6921 border: Some(if is_light {
6922 background_color.opacity(0.48)
6923 } else {
6924 background_color.opacity(0.36)
6925 }),
6926 };
6927
6928 let filled_highlight =
6929 solid_background(background_color.opacity(hunk_opacity)).into();
6930
6931 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6932 hollow_highlight
6933 } else {
6934 filled_highlight
6935 };
6936
6937 highlighted_rows
6938 .entry(start_row + DisplayRow(ix as u32))
6939 .or_insert(background);
6940 }
6941
6942 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6943 start_anchor..end_anchor,
6944 &snapshot.display_snapshot,
6945 cx.theme().colors(),
6946 );
6947 let highlighted_gutter_ranges =
6948 self.editor.read(cx).gutter_highlights_in_range(
6949 start_anchor..end_anchor,
6950 &snapshot.display_snapshot,
6951 cx,
6952 );
6953
6954 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6955 start_anchor..end_anchor,
6956 &snapshot.display_snapshot,
6957 cx,
6958 );
6959
6960 let (local_selections, selected_buffer_ids): (
6961 Vec<Selection<Point>>,
6962 Vec<BufferId>,
6963 ) = self.editor.update(cx, |editor, cx| {
6964 let all_selections = editor.selections.all::<Point>(cx);
6965 let selected_buffer_ids = if editor.is_singleton(cx) {
6966 Vec::new()
6967 } else {
6968 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6969
6970 for selection in all_selections {
6971 for buffer_id in snapshot
6972 .buffer_snapshot
6973 .buffer_ids_for_range(selection.range())
6974 {
6975 if selected_buffer_ids.last() != Some(&buffer_id) {
6976 selected_buffer_ids.push(buffer_id);
6977 }
6978 }
6979 }
6980
6981 selected_buffer_ids
6982 };
6983
6984 let mut selections = editor
6985 .selections
6986 .disjoint_in_range(start_anchor..end_anchor, cx);
6987 selections.extend(editor.selections.pending(cx));
6988
6989 (selections, selected_buffer_ids)
6990 });
6991
6992 let (selections, mut active_rows, newest_selection_head) = self
6993 .layout_selections(
6994 start_anchor,
6995 end_anchor,
6996 &local_selections,
6997 &snapshot,
6998 start_row,
6999 end_row,
7000 window,
7001 cx,
7002 );
7003 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
7004 editor.active_breakpoints(start_row..end_row, window, cx)
7005 });
7006 if cx.has_flag::<Debugger>() {
7007 for display_row in breakpoint_rows.keys() {
7008 active_rows.entry(*display_row).or_default().breakpoint = true;
7009 }
7010 }
7011
7012 let line_numbers = self.layout_line_numbers(
7013 Some(&gutter_hitbox),
7014 gutter_dimensions,
7015 line_height,
7016 scroll_position,
7017 start_row..end_row,
7018 &row_infos,
7019 &active_rows,
7020 newest_selection_head,
7021 &snapshot,
7022 window,
7023 cx,
7024 );
7025
7026 // We add the gutter breakpoint indicator to breakpoint_rows after painting
7027 // line numbers so we don't paint a line number debug accent color if a user
7028 // has their mouse over that line when a breakpoint isn't there
7029 if cx.has_flag::<Debugger>() {
7030 let gutter_breakpoint_indicator =
7031 self.editor.read(cx).gutter_breakpoint_indicator;
7032 if let Some(gutter_breakpoint_point) = gutter_breakpoint_indicator {
7033 breakpoint_rows
7034 .entry(gutter_breakpoint_point.row())
7035 .or_insert_with(|| {
7036 let position = snapshot.display_point_to_anchor(
7037 gutter_breakpoint_point,
7038 Bias::Left,
7039 );
7040 let breakpoint = Breakpoint {
7041 kind: BreakpointKind::Standard,
7042 };
7043
7044 (position, breakpoint)
7045 });
7046 }
7047 }
7048
7049 let mut expand_toggles =
7050 window.with_element_namespace("expand_toggles", |window| {
7051 self.layout_expand_toggles(
7052 &gutter_hitbox,
7053 gutter_dimensions,
7054 em_width,
7055 line_height,
7056 scroll_position,
7057 &row_infos,
7058 window,
7059 cx,
7060 )
7061 });
7062
7063 let mut crease_toggles =
7064 window.with_element_namespace("crease_toggles", |window| {
7065 self.layout_crease_toggles(
7066 start_row..end_row,
7067 &row_infos,
7068 &active_rows,
7069 &snapshot,
7070 window,
7071 cx,
7072 )
7073 });
7074 let crease_trailers =
7075 window.with_element_namespace("crease_trailers", |window| {
7076 self.layout_crease_trailers(
7077 row_infos.iter().copied(),
7078 &snapshot,
7079 window,
7080 cx,
7081 )
7082 });
7083
7084 let display_hunks = self.layout_gutter_diff_hunks(
7085 line_height,
7086 &gutter_hitbox,
7087 start_row..end_row,
7088 &snapshot,
7089 window,
7090 cx,
7091 );
7092
7093 let mut line_layouts = Self::layout_lines(
7094 start_row..end_row,
7095 &snapshot,
7096 &self.style,
7097 editor_width,
7098 is_row_soft_wrapped,
7099 window,
7100 cx,
7101 );
7102
7103 let longest_line_blame_width = self
7104 .editor
7105 .update(cx, |editor, cx| {
7106 if !editor.show_git_blame_inline {
7107 return None;
7108 }
7109 let blame = editor.blame.as_ref()?;
7110 let blame_entry = blame
7111 .update(cx, |blame, cx| {
7112 let row_infos =
7113 snapshot.row_infos(snapshot.longest_row()).next()?;
7114 blame.blame_for_rows(&[row_infos], cx).next()
7115 })
7116 .flatten()?;
7117 let mut element = render_inline_blame_entry(
7118 self.editor.clone(),
7119 blame,
7120 blame_entry,
7121 &style,
7122 cx,
7123 );
7124 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7125 Some(
7126 element
7127 .layout_as_root(AvailableSpace::min_size(), window, cx)
7128 .width
7129 + inline_blame_padding,
7130 )
7131 })
7132 .unwrap_or(Pixels::ZERO);
7133
7134 let longest_line_width = layout_line(
7135 snapshot.longest_row(),
7136 &snapshot,
7137 &style,
7138 editor_width,
7139 is_row_soft_wrapped,
7140 window,
7141 cx,
7142 )
7143 .width;
7144
7145 let scrollbar_range_data = ScrollbarRangeData::new(
7146 scrollbar_bounds,
7147 letter_size,
7148 &snapshot,
7149 longest_line_width,
7150 longest_line_blame_width,
7151 &style,
7152 editor_width,
7153 cx,
7154 );
7155
7156 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7157 let mut scroll_width = scroll_range_bounds.size.width;
7158
7159 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7160 snapshot.sticky_header_excerpt(scroll_position.y)
7161 } else {
7162 None
7163 };
7164 let sticky_header_excerpt_id =
7165 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7166
7167 let blocks = window.with_element_namespace("blocks", |window| {
7168 self.render_blocks(
7169 start_row..end_row,
7170 &snapshot,
7171 &hitbox,
7172 &text_hitbox,
7173 editor_width,
7174 &mut scroll_width,
7175 &gutter_dimensions,
7176 em_width,
7177 gutter_dimensions.full_width(),
7178 line_height,
7179 &line_layouts,
7180 &local_selections,
7181 &selected_buffer_ids,
7182 is_row_soft_wrapped,
7183 sticky_header_excerpt_id,
7184 window,
7185 cx,
7186 )
7187 });
7188 let mut blocks = match blocks {
7189 Ok(blocks) => blocks,
7190 Err(resized_blocks) => {
7191 self.editor.update(cx, |editor, cx| {
7192 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7193 });
7194 return self.prepaint(None, bounds, &mut (), window, cx);
7195 }
7196 };
7197
7198 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7199 window.with_element_namespace("blocks", |window| {
7200 self.layout_sticky_buffer_header(
7201 sticky_header_excerpt,
7202 scroll_position.y,
7203 line_height,
7204 &snapshot,
7205 &hitbox,
7206 &selected_buffer_ids,
7207 &blocks,
7208 window,
7209 cx,
7210 )
7211 })
7212 });
7213
7214 let start_buffer_row =
7215 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7216 let end_buffer_row =
7217 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7218
7219 let scroll_max = point(
7220 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7221 max_row.as_f32(),
7222 );
7223
7224 self.editor.update(cx, |editor, cx| {
7225 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7226
7227 let autoscrolled = if autoscroll_horizontally {
7228 editor.autoscroll_horizontally(
7229 start_row,
7230 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7231 scroll_width,
7232 em_width,
7233 &line_layouts,
7234 cx,
7235 )
7236 } else {
7237 false
7238 };
7239
7240 if clamped || autoscrolled {
7241 snapshot = editor.snapshot(window, cx);
7242 scroll_position = snapshot.scroll_position();
7243 }
7244 });
7245
7246 let scroll_pixel_position = point(
7247 scroll_position.x * em_width,
7248 scroll_position.y * line_height,
7249 );
7250
7251 let indent_guides = self.layout_indent_guides(
7252 content_origin,
7253 text_hitbox.origin,
7254 start_buffer_row..end_buffer_row,
7255 scroll_pixel_position,
7256 line_height,
7257 &snapshot,
7258 window,
7259 cx,
7260 );
7261
7262 let crease_trailers =
7263 window.with_element_namespace("crease_trailers", |window| {
7264 self.prepaint_crease_trailers(
7265 crease_trailers,
7266 &line_layouts,
7267 line_height,
7268 content_origin,
7269 scroll_pixel_position,
7270 em_width,
7271 window,
7272 cx,
7273 )
7274 });
7275
7276 let (inline_completion_popover, inline_completion_popover_origin) = self
7277 .editor
7278 .update(cx, |editor, cx| {
7279 editor.render_edit_prediction_popover(
7280 &text_hitbox.bounds,
7281 content_origin,
7282 &snapshot,
7283 start_row..end_row,
7284 scroll_position.y,
7285 scroll_position.y + height_in_lines,
7286 &line_layouts,
7287 line_height,
7288 scroll_pixel_position,
7289 newest_selection_head,
7290 editor_width,
7291 &style,
7292 window,
7293 cx,
7294 )
7295 })
7296 .unzip();
7297
7298 let mut inline_diagnostics = self.layout_inline_diagnostics(
7299 &line_layouts,
7300 &crease_trailers,
7301 content_origin,
7302 scroll_pixel_position,
7303 inline_completion_popover_origin,
7304 start_row,
7305 end_row,
7306 line_height,
7307 em_width,
7308 &style,
7309 window,
7310 cx,
7311 );
7312
7313 let mut inline_blame = None;
7314 if let Some(newest_selection_head) = newest_selection_head {
7315 let display_row = newest_selection_head.row();
7316 if (start_row..end_row).contains(&display_row) {
7317 let line_ix = display_row.minus(start_row) as usize;
7318 let row_info = &row_infos[line_ix];
7319 let line_layout = &line_layouts[line_ix];
7320 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7321 inline_blame = self.layout_inline_blame(
7322 display_row,
7323 row_info,
7324 line_layout,
7325 crease_trailer_layout,
7326 em_width,
7327 content_origin,
7328 scroll_pixel_position,
7329 line_height,
7330 window,
7331 cx,
7332 );
7333 if inline_blame.is_some() {
7334 // Blame overrides inline diagnostics
7335 inline_diagnostics.remove(&display_row);
7336 }
7337 }
7338 }
7339
7340 let blamed_display_rows = self.layout_blame_entries(
7341 &row_infos,
7342 em_width,
7343 scroll_position,
7344 line_height,
7345 &gutter_hitbox,
7346 gutter_dimensions.git_blame_entries_width,
7347 window,
7348 cx,
7349 );
7350
7351 let scroll_max = point(
7352 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7353 max_scroll_top,
7354 );
7355
7356 self.editor.update(cx, |editor, cx| {
7357 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7358
7359 let autoscrolled = if autoscroll_horizontally {
7360 editor.autoscroll_horizontally(
7361 start_row,
7362 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7363 scroll_width,
7364 em_width,
7365 &line_layouts,
7366 cx,
7367 )
7368 } else {
7369 false
7370 };
7371
7372 if clamped || autoscrolled {
7373 snapshot = editor.snapshot(window, cx);
7374 scroll_position = snapshot.scroll_position();
7375 }
7376 });
7377
7378 let line_elements = self.prepaint_lines(
7379 start_row,
7380 &mut line_layouts,
7381 line_height,
7382 scroll_pixel_position,
7383 content_origin,
7384 window,
7385 cx,
7386 );
7387
7388 let mut block_start_rows = HashSet::default();
7389
7390 window.with_element_namespace("blocks", |window| {
7391 self.layout_blocks(
7392 &mut blocks,
7393 &mut block_start_rows,
7394 &hitbox,
7395 line_height,
7396 scroll_pixel_position,
7397 window,
7398 cx,
7399 );
7400 });
7401
7402 let cursors = self.collect_cursors(&snapshot, cx);
7403 let visible_row_range = start_row..end_row;
7404 let non_visible_cursors = cursors
7405 .iter()
7406 .any(|c| !visible_row_range.contains(&c.0.row()));
7407
7408 let visible_cursors = self.layout_visible_cursors(
7409 &snapshot,
7410 &selections,
7411 &block_start_rows,
7412 start_row..end_row,
7413 &line_layouts,
7414 &text_hitbox,
7415 content_origin,
7416 scroll_position,
7417 scroll_pixel_position,
7418 line_height,
7419 em_width,
7420 em_advance,
7421 autoscroll_containing_element,
7422 window,
7423 cx,
7424 );
7425
7426 let scrollbars_layout = self.layout_scrollbars(
7427 &snapshot,
7428 scrollbar_range_data,
7429 scroll_position,
7430 non_visible_cursors,
7431 window,
7432 cx,
7433 );
7434
7435 let gutter_settings = EditorSettings::get_global(cx).gutter;
7436
7437 let mut code_actions_indicator = None;
7438 if let Some(newest_selection_head) = newest_selection_head {
7439 let newest_selection_point =
7440 newest_selection_head.to_point(&snapshot.display_snapshot);
7441
7442 if (start_row..end_row).contains(&newest_selection_head.row()) {
7443 self.layout_cursor_popovers(
7444 line_height,
7445 &text_hitbox,
7446 content_origin,
7447 start_row,
7448 scroll_pixel_position,
7449 &line_layouts,
7450 newest_selection_head,
7451 newest_selection_point,
7452 &style,
7453 window,
7454 cx,
7455 );
7456
7457 let show_code_actions = snapshot
7458 .show_code_actions
7459 .unwrap_or(gutter_settings.code_actions);
7460 if show_code_actions {
7461 let newest_selection_point =
7462 newest_selection_head.to_point(&snapshot.display_snapshot);
7463 if !snapshot
7464 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7465 {
7466 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7467 MultiBufferRow(newest_selection_point.row),
7468 );
7469 if let Some((buffer, range)) = buffer {
7470 let buffer_id = buffer.remote_id();
7471 let row = range.start.row;
7472 let has_test_indicator = self
7473 .editor
7474 .read(cx)
7475 .tasks
7476 .contains_key(&(buffer_id, row));
7477
7478 let has_expand_indicator = row_infos
7479 .get(
7480 (newest_selection_head.row() - start_row).0
7481 as usize,
7482 )
7483 .is_some_and(|row_info| row_info.expand_info.is_some());
7484
7485 if !has_test_indicator && !has_expand_indicator {
7486 code_actions_indicator = self
7487 .layout_code_actions_indicator(
7488 line_height,
7489 newest_selection_head,
7490 scroll_pixel_position,
7491 &gutter_dimensions,
7492 &gutter_hitbox,
7493 &mut breakpoint_rows,
7494 &display_hunks,
7495 window,
7496 cx,
7497 );
7498 }
7499 }
7500 }
7501 }
7502 }
7503 }
7504
7505 self.layout_gutter_menu(
7506 line_height,
7507 &text_hitbox,
7508 content_origin,
7509 scroll_pixel_position,
7510 gutter_dimensions.width - gutter_dimensions.left_padding,
7511 window,
7512 cx,
7513 );
7514
7515 let test_indicators = if gutter_settings.runnables {
7516 self.layout_run_indicators(
7517 line_height,
7518 start_row..end_row,
7519 &row_infos,
7520 scroll_pixel_position,
7521 &gutter_dimensions,
7522 &gutter_hitbox,
7523 &display_hunks,
7524 &snapshot,
7525 &mut breakpoint_rows,
7526 window,
7527 cx,
7528 )
7529 } else {
7530 Vec::new()
7531 };
7532
7533 let show_breakpoints = snapshot
7534 .show_breakpoints
7535 .unwrap_or(gutter_settings.breakpoints);
7536 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7537 self.layout_breakpoints(
7538 line_height,
7539 start_row..end_row,
7540 scroll_pixel_position,
7541 &gutter_dimensions,
7542 &gutter_hitbox,
7543 &display_hunks,
7544 &snapshot,
7545 breakpoint_rows,
7546 &row_infos,
7547 window,
7548 cx,
7549 )
7550 } else {
7551 vec![]
7552 };
7553
7554 self.layout_signature_help(
7555 &hitbox,
7556 content_origin,
7557 scroll_pixel_position,
7558 newest_selection_head,
7559 start_row,
7560 &line_layouts,
7561 line_height,
7562 em_width,
7563 window,
7564 cx,
7565 );
7566
7567 if !cx.has_active_drag() {
7568 self.layout_hover_popovers(
7569 &snapshot,
7570 &hitbox,
7571 &text_hitbox,
7572 start_row..end_row,
7573 content_origin,
7574 scroll_pixel_position,
7575 &line_layouts,
7576 line_height,
7577 em_width,
7578 window,
7579 cx,
7580 );
7581 }
7582
7583 let mouse_context_menu = self.layout_mouse_context_menu(
7584 &snapshot,
7585 start_row..end_row,
7586 content_origin,
7587 window,
7588 cx,
7589 );
7590
7591 window.with_element_namespace("crease_toggles", |window| {
7592 self.prepaint_crease_toggles(
7593 &mut crease_toggles,
7594 line_height,
7595 &gutter_dimensions,
7596 gutter_settings,
7597 scroll_pixel_position,
7598 &gutter_hitbox,
7599 window,
7600 cx,
7601 )
7602 });
7603
7604 window.with_element_namespace("expand_toggles", |window| {
7605 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7606 });
7607
7608 let invisible_symbol_font_size = font_size / 2.;
7609 let tab_invisible = window
7610 .text_system()
7611 .shape_line(
7612 "→".into(),
7613 invisible_symbol_font_size,
7614 &[TextRun {
7615 len: "→".len(),
7616 font: self.style.text.font(),
7617 color: cx.theme().colors().editor_invisible,
7618 background_color: None,
7619 underline: None,
7620 strikethrough: None,
7621 }],
7622 )
7623 .unwrap();
7624 let space_invisible = window
7625 .text_system()
7626 .shape_line(
7627 "•".into(),
7628 invisible_symbol_font_size,
7629 &[TextRun {
7630 len: "•".len(),
7631 font: self.style.text.font(),
7632 color: cx.theme().colors().editor_invisible,
7633 background_color: None,
7634 underline: None,
7635 strikethrough: None,
7636 }],
7637 )
7638 .unwrap();
7639
7640 let mode = snapshot.mode;
7641
7642 let position_map = Rc::new(PositionMap {
7643 size: bounds.size,
7644 visible_row_range,
7645 scroll_pixel_position,
7646 scroll_max,
7647 line_layouts,
7648 line_height,
7649 em_width,
7650 em_advance,
7651 snapshot,
7652 gutter_hitbox: gutter_hitbox.clone(),
7653 text_hitbox: text_hitbox.clone(),
7654 });
7655
7656 self.editor.update(cx, |editor, _| {
7657 editor.last_position_map = Some(position_map.clone())
7658 });
7659
7660 let diff_hunk_controls = self.layout_diff_hunk_controls(
7661 start_row..end_row,
7662 &row_infos,
7663 &text_hitbox,
7664 &position_map,
7665 newest_selection_head,
7666 line_height,
7667 scroll_pixel_position,
7668 &display_hunks,
7669 self.editor.clone(),
7670 window,
7671 cx,
7672 );
7673
7674 EditorLayout {
7675 mode,
7676 position_map,
7677 visible_display_row_range: start_row..end_row,
7678 wrap_guides,
7679 indent_guides,
7680 hitbox,
7681 gutter_hitbox,
7682 display_hunks,
7683 content_origin,
7684 scrollbars_layout,
7685 active_rows,
7686 highlighted_rows,
7687 highlighted_ranges,
7688 highlighted_gutter_ranges,
7689 redacted_ranges,
7690 line_elements,
7691 line_numbers,
7692 blamed_display_rows,
7693 inline_diagnostics,
7694 inline_blame,
7695 blocks,
7696 cursors,
7697 visible_cursors,
7698 selections,
7699 inline_completion_popover,
7700 diff_hunk_controls,
7701 mouse_context_menu,
7702 test_indicators,
7703 breakpoints,
7704 code_actions_indicator,
7705 crease_toggles,
7706 crease_trailers,
7707 tab_invisible,
7708 space_invisible,
7709 sticky_buffer_header,
7710 expand_toggles,
7711 }
7712 })
7713 })
7714 })
7715 }
7716
7717 fn paint(
7718 &mut self,
7719 _: Option<&GlobalElementId>,
7720 bounds: Bounds<gpui::Pixels>,
7721 _: &mut Self::RequestLayoutState,
7722 layout: &mut Self::PrepaintState,
7723 window: &mut Window,
7724 cx: &mut App,
7725 ) {
7726 let focus_handle = self.editor.focus_handle(cx);
7727 let key_context = self
7728 .editor
7729 .update(cx, |editor, cx| editor.key_context(window, cx));
7730
7731 window.set_key_context(key_context);
7732 window.handle_input(
7733 &focus_handle,
7734 ElementInputHandler::new(bounds, self.editor.clone()),
7735 cx,
7736 );
7737 self.register_actions(window, cx);
7738 self.register_key_listeners(window, cx, layout);
7739
7740 let text_style = TextStyleRefinement {
7741 font_size: Some(self.style.text.font_size),
7742 line_height: Some(self.style.text.line_height),
7743 ..Default::default()
7744 };
7745 let rem_size = self.rem_size(cx);
7746 window.with_rem_size(rem_size, |window| {
7747 window.with_text_style(Some(text_style), |window| {
7748 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7749 self.paint_mouse_listeners(layout, window, cx);
7750 self.paint_background(layout, window, cx);
7751 self.paint_indent_guides(layout, window, cx);
7752
7753 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7754 self.paint_blamed_display_rows(layout, window, cx);
7755 self.paint_line_numbers(layout, window, cx);
7756 }
7757
7758 self.paint_text(layout, window, cx);
7759
7760 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7761 self.paint_gutter_highlights(layout, window, cx);
7762 self.paint_gutter_indicators(layout, window, cx);
7763 }
7764
7765 if !layout.blocks.is_empty() {
7766 window.with_element_namespace("blocks", |window| {
7767 self.paint_blocks(layout, window, cx);
7768 });
7769 }
7770
7771 window.with_element_namespace("blocks", |window| {
7772 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7773 sticky_header.paint(window, cx)
7774 }
7775 });
7776
7777 self.paint_scrollbars(layout, window, cx);
7778 self.paint_inline_completion_popover(layout, window, cx);
7779 self.paint_mouse_context_menu(layout, window, cx);
7780 });
7781 })
7782 })
7783 }
7784}
7785
7786pub(super) fn gutter_bounds(
7787 editor_bounds: Bounds<Pixels>,
7788 gutter_dimensions: GutterDimensions,
7789) -> Bounds<Pixels> {
7790 Bounds {
7791 origin: editor_bounds.origin,
7792 size: size(gutter_dimensions.width, editor_bounds.size.height),
7793 }
7794}
7795
7796struct ScrollbarRangeData {
7797 scrollbar_bounds: Bounds<Pixels>,
7798 scroll_range: Bounds<Pixels>,
7799 letter_size: Size<Pixels>,
7800}
7801
7802impl ScrollbarRangeData {
7803 pub fn new(
7804 scrollbar_bounds: Bounds<Pixels>,
7805 letter_size: Size<Pixels>,
7806 snapshot: &EditorSnapshot,
7807 longest_line_width: Pixels,
7808 longest_line_blame_width: Pixels,
7809 style: &EditorStyle,
7810 editor_width: Pixels,
7811 cx: &mut App,
7812 ) -> ScrollbarRangeData {
7813 // TODO: Simplify this function down, it requires a lot of parameters
7814 let max_row = snapshot.max_point().row();
7815 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7816
7817 let settings = EditorSettings::get_global(cx);
7818 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7819 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7820 ScrollBeyondLastLine::Off => px(1.),
7821 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7822 };
7823
7824 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7825 letter_size.width + style.scrollbar_width
7826 } else {
7827 px(0.0)
7828 };
7829
7830 let overscroll = size(
7831 right_margin + longest_line_blame_width,
7832 letter_size.height * scroll_beyond_last_line,
7833 );
7834
7835 let scroll_range = Bounds {
7836 origin: scrollbar_bounds.origin,
7837 size: text_bounds_size + overscroll,
7838 };
7839
7840 ScrollbarRangeData {
7841 scrollbar_bounds,
7842 scroll_range,
7843 letter_size,
7844 }
7845 }
7846}
7847
7848impl IntoElement for EditorElement {
7849 type Element = Self;
7850
7851 fn into_element(self) -> Self::Element {
7852 self
7853 }
7854}
7855
7856pub struct EditorLayout {
7857 position_map: Rc<PositionMap>,
7858 hitbox: Hitbox,
7859 gutter_hitbox: Hitbox,
7860 content_origin: gpui::Point<Pixels>,
7861 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7862 mode: EditorMode,
7863 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7864 indent_guides: Option<Vec<IndentGuideLayout>>,
7865 visible_display_row_range: Range<DisplayRow>,
7866 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7867 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7868 line_elements: SmallVec<[AnyElement; 1]>,
7869 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7870 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7871 blamed_display_rows: Option<Vec<AnyElement>>,
7872 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7873 inline_blame: Option<AnyElement>,
7874 blocks: Vec<BlockLayout>,
7875 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7876 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7877 redacted_ranges: Vec<Range<DisplayPoint>>,
7878 cursors: Vec<(DisplayPoint, Hsla)>,
7879 visible_cursors: Vec<CursorLayout>,
7880 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7881 code_actions_indicator: Option<AnyElement>,
7882 test_indicators: Vec<AnyElement>,
7883 breakpoints: Vec<AnyElement>,
7884 crease_toggles: Vec<Option<AnyElement>>,
7885 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7886 diff_hunk_controls: Vec<AnyElement>,
7887 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7888 inline_completion_popover: Option<AnyElement>,
7889 mouse_context_menu: Option<AnyElement>,
7890 tab_invisible: ShapedLine,
7891 space_invisible: ShapedLine,
7892 sticky_buffer_header: Option<AnyElement>,
7893}
7894
7895impl EditorLayout {
7896 fn line_end_overshoot(&self) -> Pixels {
7897 0.15 * self.position_map.line_height
7898 }
7899}
7900
7901struct LineNumberLayout {
7902 shaped_line: ShapedLine,
7903 hitbox: Option<Hitbox>,
7904}
7905
7906struct ColoredRange<T> {
7907 start: T,
7908 end: T,
7909 color: Hsla,
7910}
7911
7912#[derive(Clone)]
7913struct ScrollbarLayout {
7914 hitbox: Hitbox,
7915 visible_range: Range<f32>,
7916 visible: bool,
7917 text_unit_size: Pixels,
7918 thumb_size: Pixels,
7919 axis: Axis,
7920}
7921
7922impl ScrollbarLayout {
7923 const BORDER_WIDTH: Pixels = px(1.0);
7924 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7925 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7926 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7927
7928 fn thumb_bounds(&self) -> Bounds<Pixels> {
7929 match self.axis {
7930 Axis::Vertical => {
7931 let thumb_top = self.y_for_row(self.visible_range.start);
7932 let thumb_bottom = thumb_top + self.thumb_size;
7933 Bounds::from_corners(
7934 point(self.hitbox.left(), thumb_top),
7935 point(self.hitbox.right(), thumb_bottom),
7936 )
7937 }
7938 Axis::Horizontal => {
7939 let thumb_left =
7940 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7941 let thumb_right = thumb_left + self.thumb_size;
7942 Bounds::from_corners(
7943 point(thumb_left, self.hitbox.top()),
7944 point(thumb_right, self.hitbox.bottom()),
7945 )
7946 }
7947 }
7948 }
7949
7950 fn y_for_row(&self, row: f32) -> Pixels {
7951 self.hitbox.top() + row * self.text_unit_size
7952 }
7953
7954 fn marker_quads_for_ranges(
7955 &self,
7956 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7957 column: Option<usize>,
7958 ) -> Vec<PaintQuad> {
7959 struct MinMax {
7960 min: Pixels,
7961 max: Pixels,
7962 }
7963 let (x_range, height_limit) = if let Some(column) = column {
7964 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7965 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7966 let end = start + column_width;
7967 (
7968 Range { start, end },
7969 MinMax {
7970 min: Self::MIN_MARKER_HEIGHT,
7971 max: px(f32::MAX),
7972 },
7973 )
7974 } else {
7975 (
7976 Range {
7977 start: Self::BORDER_WIDTH,
7978 end: self.hitbox.size.width,
7979 },
7980 MinMax {
7981 min: Self::LINE_MARKER_HEIGHT,
7982 max: Self::LINE_MARKER_HEIGHT,
7983 },
7984 )
7985 };
7986
7987 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7988 let mut pixel_ranges = row_ranges
7989 .into_iter()
7990 .map(|range| {
7991 let start_y = row_to_y(range.start);
7992 let end_y = row_to_y(range.end)
7993 + self
7994 .text_unit_size
7995 .max(height_limit.min)
7996 .min(height_limit.max);
7997 ColoredRange {
7998 start: start_y,
7999 end: end_y,
8000 color: range.color,
8001 }
8002 })
8003 .peekable();
8004
8005 let mut quads = Vec::new();
8006 while let Some(mut pixel_range) = pixel_ranges.next() {
8007 while let Some(next_pixel_range) = pixel_ranges.peek() {
8008 if pixel_range.end >= next_pixel_range.start - px(1.0)
8009 && pixel_range.color == next_pixel_range.color
8010 {
8011 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8012 pixel_ranges.next();
8013 } else {
8014 break;
8015 }
8016 }
8017
8018 let bounds = Bounds::from_corners(
8019 point(x_range.start, pixel_range.start),
8020 point(x_range.end, pixel_range.end),
8021 );
8022 quads.push(quad(
8023 bounds,
8024 Corners::default(),
8025 pixel_range.color,
8026 Edges::default(),
8027 Hsla::transparent_black(),
8028 ));
8029 }
8030
8031 quads
8032 }
8033}
8034
8035struct CreaseTrailerLayout {
8036 element: AnyElement,
8037 bounds: Bounds<Pixels>,
8038}
8039
8040pub(crate) struct PositionMap {
8041 pub size: Size<Pixels>,
8042 pub line_height: Pixels,
8043 pub scroll_pixel_position: gpui::Point<Pixels>,
8044 pub scroll_max: gpui::Point<f32>,
8045 pub em_width: Pixels,
8046 pub em_advance: Pixels,
8047 pub visible_row_range: Range<DisplayRow>,
8048 pub line_layouts: Vec<LineWithInvisibles>,
8049 pub snapshot: EditorSnapshot,
8050 pub text_hitbox: Hitbox,
8051 pub gutter_hitbox: Hitbox,
8052}
8053
8054#[derive(Debug, Copy, Clone)]
8055pub struct PointForPosition {
8056 pub previous_valid: DisplayPoint,
8057 pub next_valid: DisplayPoint,
8058 pub exact_unclipped: DisplayPoint,
8059 pub column_overshoot_after_line_end: u32,
8060}
8061
8062impl PointForPosition {
8063 pub fn as_valid(&self) -> Option<DisplayPoint> {
8064 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8065 Some(self.previous_valid)
8066 } else {
8067 None
8068 }
8069 }
8070}
8071
8072impl PositionMap {
8073 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8074 let text_bounds = self.text_hitbox.bounds;
8075 let scroll_position = self.snapshot.scroll_position();
8076 let position = position - text_bounds.origin;
8077 let y = position.y.max(px(0.)).min(self.size.height);
8078 let x = position.x + (scroll_position.x * self.em_width);
8079 let row = ((y / self.line_height) + scroll_position.y) as u32;
8080
8081 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8082 .line_layouts
8083 .get(row as usize - scroll_position.y as usize)
8084 {
8085 if let Some(ix) = line.index_for_x(x) {
8086 (ix as u32, px(0.))
8087 } else {
8088 (line.len as u32, px(0.).max(x - line.width))
8089 }
8090 } else {
8091 (0, x)
8092 };
8093
8094 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8095 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8096 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8097
8098 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8099 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8100 PointForPosition {
8101 previous_valid,
8102 next_valid,
8103 exact_unclipped,
8104 column_overshoot_after_line_end,
8105 }
8106 }
8107}
8108
8109struct BlockLayout {
8110 id: BlockId,
8111 row: Option<DisplayRow>,
8112 element: AnyElement,
8113 available_space: Size<AvailableSpace>,
8114 style: BlockStyle,
8115 is_buffer_header: bool,
8116}
8117
8118pub fn layout_line(
8119 row: DisplayRow,
8120 snapshot: &EditorSnapshot,
8121 style: &EditorStyle,
8122 text_width: Pixels,
8123 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8124 window: &mut Window,
8125 cx: &mut App,
8126) -> LineWithInvisibles {
8127 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8128 LineWithInvisibles::from_chunks(
8129 chunks,
8130 &style,
8131 MAX_LINE_LEN,
8132 1,
8133 snapshot.mode,
8134 text_width,
8135 is_row_soft_wrapped,
8136 window,
8137 cx,
8138 )
8139 .pop()
8140 .unwrap()
8141}
8142
8143#[derive(Debug)]
8144pub struct IndentGuideLayout {
8145 origin: gpui::Point<Pixels>,
8146 length: Pixels,
8147 single_indent_width: Pixels,
8148 depth: u32,
8149 active: bool,
8150 settings: IndentGuideSettings,
8151}
8152
8153pub struct CursorLayout {
8154 origin: gpui::Point<Pixels>,
8155 block_width: Pixels,
8156 line_height: Pixels,
8157 color: Hsla,
8158 shape: CursorShape,
8159 block_text: Option<ShapedLine>,
8160 cursor_name: Option<AnyElement>,
8161}
8162
8163#[derive(Debug)]
8164pub struct CursorName {
8165 string: SharedString,
8166 color: Hsla,
8167 is_top_row: bool,
8168}
8169
8170impl CursorLayout {
8171 pub fn new(
8172 origin: gpui::Point<Pixels>,
8173 block_width: Pixels,
8174 line_height: Pixels,
8175 color: Hsla,
8176 shape: CursorShape,
8177 block_text: Option<ShapedLine>,
8178 ) -> CursorLayout {
8179 CursorLayout {
8180 origin,
8181 block_width,
8182 line_height,
8183 color,
8184 shape,
8185 block_text,
8186 cursor_name: None,
8187 }
8188 }
8189
8190 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8191 Bounds {
8192 origin: self.origin + origin,
8193 size: size(self.block_width, self.line_height),
8194 }
8195 }
8196
8197 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8198 match self.shape {
8199 CursorShape::Bar => Bounds {
8200 origin: self.origin + origin,
8201 size: size(px(2.0), self.line_height),
8202 },
8203 CursorShape::Block | CursorShape::Hollow => Bounds {
8204 origin: self.origin + origin,
8205 size: size(self.block_width, self.line_height),
8206 },
8207 CursorShape::Underline => Bounds {
8208 origin: self.origin
8209 + origin
8210 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8211 size: size(self.block_width, px(2.0)),
8212 },
8213 }
8214 }
8215
8216 pub fn layout(
8217 &mut self,
8218 origin: gpui::Point<Pixels>,
8219 cursor_name: Option<CursorName>,
8220 window: &mut Window,
8221 cx: &mut App,
8222 ) {
8223 if let Some(cursor_name) = cursor_name {
8224 let bounds = self.bounds(origin);
8225 let text_size = self.line_height / 1.5;
8226
8227 let name_origin = if cursor_name.is_top_row {
8228 point(bounds.right() - px(1.), bounds.top())
8229 } else {
8230 match self.shape {
8231 CursorShape::Bar => point(
8232 bounds.right() - px(2.),
8233 bounds.top() - text_size / 2. - px(1.),
8234 ),
8235 _ => point(
8236 bounds.right() - px(1.),
8237 bounds.top() - text_size / 2. - px(1.),
8238 ),
8239 }
8240 };
8241 let mut name_element = div()
8242 .bg(self.color)
8243 .text_size(text_size)
8244 .px_0p5()
8245 .line_height(text_size + px(2.))
8246 .text_color(cursor_name.color)
8247 .child(cursor_name.string.clone())
8248 .into_any_element();
8249
8250 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8251
8252 self.cursor_name = Some(name_element);
8253 }
8254 }
8255
8256 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8257 let bounds = self.bounds(origin);
8258
8259 //Draw background or border quad
8260 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8261 outline(bounds, self.color)
8262 } else {
8263 fill(bounds, self.color)
8264 };
8265
8266 if let Some(name) = &mut self.cursor_name {
8267 name.paint(window, cx);
8268 }
8269
8270 window.paint_quad(cursor);
8271
8272 if let Some(block_text) = &self.block_text {
8273 block_text
8274 .paint(self.origin + origin, self.line_height, window, cx)
8275 .log_err();
8276 }
8277 }
8278
8279 pub fn shape(&self) -> CursorShape {
8280 self.shape
8281 }
8282}
8283
8284#[derive(Debug)]
8285pub struct HighlightedRange {
8286 pub start_y: Pixels,
8287 pub line_height: Pixels,
8288 pub lines: Vec<HighlightedRangeLine>,
8289 pub color: Hsla,
8290 pub corner_radius: Pixels,
8291}
8292
8293#[derive(Debug)]
8294pub struct HighlightedRangeLine {
8295 pub start_x: Pixels,
8296 pub end_x: Pixels,
8297}
8298
8299impl HighlightedRange {
8300 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8301 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8302 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8303 self.paint_lines(
8304 self.start_y + self.line_height,
8305 &self.lines[1..],
8306 bounds,
8307 window,
8308 );
8309 } else {
8310 self.paint_lines(self.start_y, &self.lines, bounds, window);
8311 }
8312 }
8313
8314 fn paint_lines(
8315 &self,
8316 start_y: Pixels,
8317 lines: &[HighlightedRangeLine],
8318 _bounds: Bounds<Pixels>,
8319 window: &mut Window,
8320 ) {
8321 if lines.is_empty() {
8322 return;
8323 }
8324
8325 let first_line = lines.first().unwrap();
8326 let last_line = lines.last().unwrap();
8327
8328 let first_top_left = point(first_line.start_x, start_y);
8329 let first_top_right = point(first_line.end_x, start_y);
8330
8331 let curve_height = point(Pixels::ZERO, self.corner_radius);
8332 let curve_width = |start_x: Pixels, end_x: Pixels| {
8333 let max = (end_x - start_x) / 2.;
8334 let width = if max < self.corner_radius {
8335 max
8336 } else {
8337 self.corner_radius
8338 };
8339
8340 point(width, Pixels::ZERO)
8341 };
8342
8343 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8344 let mut builder = gpui::PathBuilder::fill();
8345 builder.move_to(first_top_right - top_curve_width);
8346 builder.curve_to(first_top_right + curve_height, first_top_right);
8347
8348 let mut iter = lines.iter().enumerate().peekable();
8349 while let Some((ix, line)) = iter.next() {
8350 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8351
8352 if let Some((_, next_line)) = iter.peek() {
8353 let next_top_right = point(next_line.end_x, bottom_right.y);
8354
8355 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8356 Ordering::Equal => {
8357 builder.line_to(bottom_right);
8358 }
8359 Ordering::Less => {
8360 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8361 builder.line_to(bottom_right - curve_height);
8362 if self.corner_radius > Pixels::ZERO {
8363 builder.curve_to(bottom_right - curve_width, bottom_right);
8364 }
8365 builder.line_to(next_top_right + curve_width);
8366 if self.corner_radius > Pixels::ZERO {
8367 builder.curve_to(next_top_right + curve_height, next_top_right);
8368 }
8369 }
8370 Ordering::Greater => {
8371 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8372 builder.line_to(bottom_right - curve_height);
8373 if self.corner_radius > Pixels::ZERO {
8374 builder.curve_to(bottom_right + curve_width, bottom_right);
8375 }
8376 builder.line_to(next_top_right - curve_width);
8377 if self.corner_radius > Pixels::ZERO {
8378 builder.curve_to(next_top_right + curve_height, next_top_right);
8379 }
8380 }
8381 }
8382 } else {
8383 let curve_width = curve_width(line.start_x, line.end_x);
8384 builder.line_to(bottom_right - curve_height);
8385 if self.corner_radius > Pixels::ZERO {
8386 builder.curve_to(bottom_right - curve_width, bottom_right);
8387 }
8388
8389 let bottom_left = point(line.start_x, bottom_right.y);
8390 builder.line_to(bottom_left + curve_width);
8391 if self.corner_radius > Pixels::ZERO {
8392 builder.curve_to(bottom_left - curve_height, bottom_left);
8393 }
8394 }
8395 }
8396
8397 if first_line.start_x > last_line.start_x {
8398 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8399 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8400 builder.line_to(second_top_left + curve_height);
8401 if self.corner_radius > Pixels::ZERO {
8402 builder.curve_to(second_top_left + curve_width, second_top_left);
8403 }
8404 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8405 builder.line_to(first_bottom_left - curve_width);
8406 if self.corner_radius > Pixels::ZERO {
8407 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8408 }
8409 }
8410
8411 builder.line_to(first_top_left + curve_height);
8412 if self.corner_radius > Pixels::ZERO {
8413 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8414 }
8415 builder.line_to(first_top_right - top_curve_width);
8416
8417 if let Ok(path) = builder.build() {
8418 window.paint_path(path, self.color);
8419 }
8420 }
8421}
8422
8423enum CursorPopoverType {
8424 CodeContextMenu,
8425 EditPrediction,
8426}
8427
8428pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8429 (delta.pow(1.5) / 100.0).into()
8430}
8431
8432fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8433 (delta.pow(1.2) / 300.0).into()
8434}
8435
8436pub fn register_action<T: Action>(
8437 editor: &Entity<Editor>,
8438 window: &mut Window,
8439 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8440) {
8441 let editor = editor.clone();
8442 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8443 let action = action.downcast_ref().unwrap();
8444 if phase == DispatchPhase::Bubble {
8445 editor.update(cx, |editor, cx| {
8446 listener(editor, action, window, cx);
8447 })
8448 }
8449 })
8450}
8451
8452fn compute_auto_height_layout(
8453 editor: &mut Editor,
8454 max_lines: usize,
8455 max_line_number_width: Pixels,
8456 known_dimensions: Size<Option<Pixels>>,
8457 available_width: AvailableSpace,
8458 window: &mut Window,
8459 cx: &mut Context<Editor>,
8460) -> Option<Size<Pixels>> {
8461 let width = known_dimensions.width.or({
8462 if let AvailableSpace::Definite(available_width) = available_width {
8463 Some(available_width)
8464 } else {
8465 None
8466 }
8467 })?;
8468 if let Some(height) = known_dimensions.height {
8469 return Some(size(width, height));
8470 }
8471
8472 let style = editor.style.as_ref().unwrap();
8473 let font_id = window.text_system().resolve_font(&style.text.font());
8474 let font_size = style.text.font_size.to_pixels(window.rem_size());
8475 let line_height = style.text.line_height_in_pixels(window.rem_size());
8476 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8477
8478 let mut snapshot = editor.snapshot(window, cx);
8479 let gutter_dimensions = snapshot
8480 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8481 .unwrap_or_default();
8482
8483 editor.gutter_dimensions = gutter_dimensions;
8484 let text_width = width - gutter_dimensions.width;
8485 let overscroll = size(em_width, px(0.));
8486
8487 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8488 if editor.set_wrap_width(Some(editor_width), cx) {
8489 snapshot = editor.snapshot(window, cx);
8490 }
8491
8492 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8493 let height = scroll_height
8494 .max(line_height)
8495 .min(line_height * max_lines as f32);
8496
8497 Some(size(width, height))
8498}
8499
8500#[cfg(test)]
8501mod tests {
8502 use super::*;
8503 use crate::{
8504 display_map::{BlockPlacement, BlockProperties},
8505 editor_tests::{init_test, update_test_language_settings},
8506 Editor, MultiBuffer,
8507 };
8508 use gpui::{TestAppContext, VisualTestContext};
8509 use language::language_settings;
8510 use log::info;
8511 use std::num::NonZeroU32;
8512 use util::test::sample_text;
8513
8514 #[gpui::test]
8515 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8516 init_test(cx, |_| {});
8517 let window = cx.add_window(|window, cx| {
8518 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8519 Editor::new(EditorMode::Full, buffer, None, window, cx)
8520 });
8521
8522 let editor = window.root(cx).unwrap();
8523 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8524 let line_height = window
8525 .update(cx, |_, window, _| {
8526 style.text.line_height_in_pixels(window.rem_size())
8527 })
8528 .unwrap();
8529 let element = EditorElement::new(&editor, style);
8530 let snapshot = window
8531 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8532 .unwrap();
8533
8534 let layouts = cx
8535 .update_window(*window, |_, window, cx| {
8536 element.layout_line_numbers(
8537 None,
8538 GutterDimensions {
8539 left_padding: Pixels::ZERO,
8540 right_padding: Pixels::ZERO,
8541 width: px(30.0),
8542 margin: Pixels::ZERO,
8543 git_blame_entries_width: None,
8544 },
8545 line_height,
8546 gpui::Point::default(),
8547 DisplayRow(0)..DisplayRow(6),
8548 &(0..6)
8549 .map(|row| RowInfo {
8550 buffer_row: Some(row),
8551 ..Default::default()
8552 })
8553 .collect::<Vec<_>>(),
8554 &BTreeMap::default(),
8555 Some(DisplayPoint::new(DisplayRow(0), 0)),
8556 &snapshot,
8557 window,
8558 cx,
8559 )
8560 })
8561 .unwrap();
8562 assert_eq!(layouts.len(), 6);
8563
8564 let relative_rows = window
8565 .update(cx, |editor, window, cx| {
8566 let snapshot = editor.snapshot(window, cx);
8567 element.calculate_relative_line_numbers(
8568 &snapshot,
8569 &(DisplayRow(0)..DisplayRow(6)),
8570 Some(DisplayRow(3)),
8571 )
8572 })
8573 .unwrap();
8574 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8575 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8576 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8577 // current line has no relative number
8578 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8579 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8580
8581 // works if cursor is before screen
8582 let relative_rows = window
8583 .update(cx, |editor, window, cx| {
8584 let snapshot = editor.snapshot(window, cx);
8585 element.calculate_relative_line_numbers(
8586 &snapshot,
8587 &(DisplayRow(3)..DisplayRow(6)),
8588 Some(DisplayRow(1)),
8589 )
8590 })
8591 .unwrap();
8592 assert_eq!(relative_rows.len(), 3);
8593 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8594 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8595 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8596
8597 // works if cursor is after screen
8598 let relative_rows = window
8599 .update(cx, |editor, window, cx| {
8600 let snapshot = editor.snapshot(window, cx);
8601 element.calculate_relative_line_numbers(
8602 &snapshot,
8603 &(DisplayRow(0)..DisplayRow(3)),
8604 Some(DisplayRow(6)),
8605 )
8606 })
8607 .unwrap();
8608 assert_eq!(relative_rows.len(), 3);
8609 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8610 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8611 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8612 }
8613
8614 #[gpui::test]
8615 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8616 init_test(cx, |_| {});
8617
8618 let window = cx.add_window(|window, cx| {
8619 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8620 Editor::new(EditorMode::Full, buffer, None, window, cx)
8621 });
8622 let cx = &mut VisualTestContext::from_window(*window, cx);
8623 let editor = window.root(cx).unwrap();
8624 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8625
8626 window
8627 .update(cx, |editor, window, cx| {
8628 editor.cursor_shape = CursorShape::Block;
8629 editor.change_selections(None, window, cx, |s| {
8630 s.select_ranges([
8631 Point::new(0, 0)..Point::new(1, 0),
8632 Point::new(3, 2)..Point::new(3, 3),
8633 Point::new(5, 6)..Point::new(6, 0),
8634 ]);
8635 });
8636 })
8637 .unwrap();
8638
8639 let (_, state) = cx.draw(
8640 point(px(500.), px(500.)),
8641 size(px(500.), px(500.)),
8642 |_, _| EditorElement::new(&editor, style),
8643 );
8644
8645 assert_eq!(state.selections.len(), 1);
8646 let local_selections = &state.selections[0].1;
8647 assert_eq!(local_selections.len(), 3);
8648 // moves cursor back one line
8649 assert_eq!(
8650 local_selections[0].head,
8651 DisplayPoint::new(DisplayRow(0), 6)
8652 );
8653 assert_eq!(
8654 local_selections[0].range,
8655 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8656 );
8657
8658 // moves cursor back one column
8659 assert_eq!(
8660 local_selections[1].range,
8661 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8662 );
8663 assert_eq!(
8664 local_selections[1].head,
8665 DisplayPoint::new(DisplayRow(3), 2)
8666 );
8667
8668 // leaves cursor on the max point
8669 assert_eq!(
8670 local_selections[2].range,
8671 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8672 );
8673 assert_eq!(
8674 local_selections[2].head,
8675 DisplayPoint::new(DisplayRow(6), 0)
8676 );
8677
8678 // active lines does not include 1 (even though the range of the selection does)
8679 assert_eq!(
8680 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8681 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8682 );
8683 }
8684
8685 #[gpui::test]
8686 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8687 init_test(cx, |_| {});
8688
8689 let window = cx.add_window(|window, cx| {
8690 let buffer = MultiBuffer::build_simple("", cx);
8691 Editor::new(EditorMode::Full, buffer, None, window, cx)
8692 });
8693 let cx = &mut VisualTestContext::from_window(*window, cx);
8694 let editor = window.root(cx).unwrap();
8695 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8696 window
8697 .update(cx, |editor, window, cx| {
8698 editor.set_placeholder_text("hello", cx);
8699 editor.insert_blocks(
8700 [BlockProperties {
8701 style: BlockStyle::Fixed,
8702 placement: BlockPlacement::Above(Anchor::min()),
8703 height: 3,
8704 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8705 priority: 0,
8706 }],
8707 None,
8708 cx,
8709 );
8710
8711 // Blur the editor so that it displays placeholder text.
8712 window.blur();
8713 })
8714 .unwrap();
8715
8716 let (_, state) = cx.draw(
8717 point(px(500.), px(500.)),
8718 size(px(500.), px(500.)),
8719 |_, _| EditorElement::new(&editor, style),
8720 );
8721 assert_eq!(state.position_map.line_layouts.len(), 4);
8722 assert_eq!(state.line_numbers.len(), 1);
8723 assert_eq!(
8724 state
8725 .line_numbers
8726 .get(&MultiBufferRow(0))
8727 .map(|line_number| line_number.shaped_line.text.as_ref()),
8728 Some("1")
8729 );
8730 }
8731
8732 #[gpui::test]
8733 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8734 const TAB_SIZE: u32 = 4;
8735
8736 let input_text = "\t \t|\t| a b";
8737 let expected_invisibles = vec![
8738 Invisible::Tab {
8739 line_start_offset: 0,
8740 line_end_offset: TAB_SIZE as usize,
8741 },
8742 Invisible::Whitespace {
8743 line_offset: TAB_SIZE as usize,
8744 },
8745 Invisible::Tab {
8746 line_start_offset: TAB_SIZE as usize + 1,
8747 line_end_offset: TAB_SIZE as usize * 2,
8748 },
8749 Invisible::Tab {
8750 line_start_offset: TAB_SIZE as usize * 2 + 1,
8751 line_end_offset: TAB_SIZE as usize * 3,
8752 },
8753 Invisible::Whitespace {
8754 line_offset: TAB_SIZE as usize * 3 + 1,
8755 },
8756 Invisible::Whitespace {
8757 line_offset: TAB_SIZE as usize * 3 + 3,
8758 },
8759 ];
8760 assert_eq!(
8761 expected_invisibles.len(),
8762 input_text
8763 .chars()
8764 .filter(|initial_char| initial_char.is_whitespace())
8765 .count(),
8766 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8767 );
8768
8769 for show_line_numbers in [true, false] {
8770 init_test(cx, |s| {
8771 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8772 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8773 });
8774
8775 let actual_invisibles = collect_invisibles_from_new_editor(
8776 cx,
8777 EditorMode::Full,
8778 input_text,
8779 px(500.0),
8780 show_line_numbers,
8781 );
8782
8783 assert_eq!(expected_invisibles, actual_invisibles);
8784 }
8785 }
8786
8787 #[gpui::test]
8788 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8789 init_test(cx, |s| {
8790 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8791 s.defaults.tab_size = NonZeroU32::new(4);
8792 });
8793
8794 for editor_mode_without_invisibles in [
8795 EditorMode::SingleLine { auto_width: false },
8796 EditorMode::AutoHeight { max_lines: 100 },
8797 ] {
8798 for show_line_numbers in [true, false] {
8799 let invisibles = collect_invisibles_from_new_editor(
8800 cx,
8801 editor_mode_without_invisibles,
8802 "\t\t\t| | a b",
8803 px(500.0),
8804 show_line_numbers,
8805 );
8806 assert!(invisibles.is_empty(),
8807 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8808 }
8809 }
8810 }
8811
8812 #[gpui::test]
8813 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8814 let tab_size = 4;
8815 let input_text = "a\tbcd ".repeat(9);
8816 let repeated_invisibles = [
8817 Invisible::Tab {
8818 line_start_offset: 1,
8819 line_end_offset: tab_size as usize,
8820 },
8821 Invisible::Whitespace {
8822 line_offset: tab_size as usize + 3,
8823 },
8824 Invisible::Whitespace {
8825 line_offset: tab_size as usize + 4,
8826 },
8827 Invisible::Whitespace {
8828 line_offset: tab_size as usize + 5,
8829 },
8830 Invisible::Whitespace {
8831 line_offset: tab_size as usize + 6,
8832 },
8833 Invisible::Whitespace {
8834 line_offset: tab_size as usize + 7,
8835 },
8836 ];
8837 let expected_invisibles = std::iter::once(repeated_invisibles)
8838 .cycle()
8839 .take(9)
8840 .flatten()
8841 .collect::<Vec<_>>();
8842 assert_eq!(
8843 expected_invisibles.len(),
8844 input_text
8845 .chars()
8846 .filter(|initial_char| initial_char.is_whitespace())
8847 .count(),
8848 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8849 );
8850 info!("Expected invisibles: {expected_invisibles:?}");
8851
8852 init_test(cx, |_| {});
8853
8854 // Put the same string with repeating whitespace pattern into editors of various size,
8855 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8856 let resize_step = 10.0;
8857 let mut editor_width = 200.0;
8858 while editor_width <= 1000.0 {
8859 for show_line_numbers in [true, false] {
8860 update_test_language_settings(cx, |s| {
8861 s.defaults.tab_size = NonZeroU32::new(tab_size);
8862 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8863 s.defaults.preferred_line_length = Some(editor_width as u32);
8864 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8865 });
8866
8867 let actual_invisibles = collect_invisibles_from_new_editor(
8868 cx,
8869 EditorMode::Full,
8870 &input_text,
8871 px(editor_width),
8872 show_line_numbers,
8873 );
8874
8875 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8876 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8877 let mut i = 0;
8878 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8879 i = actual_index;
8880 match expected_invisibles.get(i) {
8881 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8882 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8883 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8884 _ => {
8885 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8886 }
8887 },
8888 None => {
8889 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8890 }
8891 }
8892 }
8893 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8894 assert!(
8895 missing_expected_invisibles.is_empty(),
8896 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8897 );
8898
8899 editor_width += resize_step;
8900 }
8901 }
8902 }
8903
8904 fn collect_invisibles_from_new_editor(
8905 cx: &mut TestAppContext,
8906 editor_mode: EditorMode,
8907 input_text: &str,
8908 editor_width: Pixels,
8909 show_line_numbers: bool,
8910 ) -> Vec<Invisible> {
8911 info!(
8912 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8913 editor_width.0
8914 );
8915 let window = cx.add_window(|window, cx| {
8916 let buffer = MultiBuffer::build_simple(input_text, cx);
8917 Editor::new(editor_mode, buffer, None, window, cx)
8918 });
8919 let cx = &mut VisualTestContext::from_window(*window, cx);
8920 let editor = window.root(cx).unwrap();
8921
8922 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8923 window
8924 .update(cx, |editor, _, cx| {
8925 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8926 editor.set_wrap_width(Some(editor_width), cx);
8927 editor.set_show_line_numbers(show_line_numbers, cx);
8928 })
8929 .unwrap();
8930 let (_, state) = cx.draw(
8931 point(px(500.), px(500.)),
8932 size(px(500.), px(500.)),
8933 |_, _| EditorElement::new(&editor, style),
8934 );
8935 state
8936 .position_map
8937 .line_layouts
8938 .iter()
8939 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8940 .cloned()
8941 .collect()
8942 }
8943}
8944
8945fn diff_hunk_controls(
8946 row: u32,
8947 status: &DiffHunkStatus,
8948 hunk_range: Range<Anchor>,
8949 is_created_file: bool,
8950 line_height: Pixels,
8951 editor: &Entity<Editor>,
8952 cx: &mut App,
8953) -> AnyElement {
8954 h_flex()
8955 .h(line_height)
8956 .mr_1()
8957 .gap_1()
8958 .px_0p5()
8959 .pb_1()
8960 .border_x_1()
8961 .border_b_1()
8962 .border_color(cx.theme().colors().border_variant)
8963 .rounded_b_lg()
8964 .bg(cx.theme().colors().editor_background)
8965 .gap_1()
8966 .occlude()
8967 .shadow_md()
8968 .child(if status.has_secondary_hunk() {
8969 Button::new(("stage", row as u64), "Stage")
8970 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8971 .tooltip({
8972 let focus_handle = editor.focus_handle(cx);
8973 move |window, cx| {
8974 Tooltip::for_action_in(
8975 "Stage Hunk",
8976 &::git::ToggleStaged,
8977 &focus_handle,
8978 window,
8979 cx,
8980 )
8981 }
8982 })
8983 .on_click({
8984 let editor = editor.clone();
8985 move |_event, _window, cx| {
8986 editor.update(cx, |editor, cx| {
8987 editor.stage_or_unstage_diff_hunks(
8988 true,
8989 vec![hunk_range.start..hunk_range.start],
8990 cx,
8991 );
8992 });
8993 }
8994 })
8995 } else {
8996 Button::new(("unstage", row as u64), "Unstage")
8997 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8998 .tooltip({
8999 let focus_handle = editor.focus_handle(cx);
9000 move |window, cx| {
9001 Tooltip::for_action_in(
9002 "Unstage Hunk",
9003 &::git::ToggleStaged,
9004 &focus_handle,
9005 window,
9006 cx,
9007 )
9008 }
9009 })
9010 .on_click({
9011 let editor = editor.clone();
9012 move |_event, _window, cx| {
9013 editor.update(cx, |editor, cx| {
9014 editor.stage_or_unstage_diff_hunks(
9015 false,
9016 vec![hunk_range.start..hunk_range.start],
9017 cx,
9018 );
9019 });
9020 }
9021 })
9022 })
9023 .child(
9024 Button::new("restore", "Restore")
9025 .tooltip({
9026 let focus_handle = editor.focus_handle(cx);
9027 move |window, cx| {
9028 Tooltip::for_action_in(
9029 "Restore Hunk",
9030 &::git::Restore,
9031 &focus_handle,
9032 window,
9033 cx,
9034 )
9035 }
9036 })
9037 .on_click({
9038 let editor = editor.clone();
9039 move |_event, window, cx| {
9040 editor.update(cx, |editor, cx| {
9041 let snapshot = editor.snapshot(window, cx);
9042 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9043 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
9044 });
9045 }
9046 })
9047 .disabled(is_created_file),
9048 )
9049 .when(
9050 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
9051 |el| {
9052 el.child(
9053 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
9054 .shape(IconButtonShape::Square)
9055 .icon_size(IconSize::Small)
9056 // .disabled(!has_multiple_hunks)
9057 .tooltip({
9058 let focus_handle = editor.focus_handle(cx);
9059 move |window, cx| {
9060 Tooltip::for_action_in(
9061 "Next Hunk",
9062 &GoToHunk,
9063 &focus_handle,
9064 window,
9065 cx,
9066 )
9067 }
9068 })
9069 .on_click({
9070 let editor = editor.clone();
9071 move |_event, window, cx| {
9072 editor.update(cx, |editor, cx| {
9073 let snapshot = editor.snapshot(window, cx);
9074 let position =
9075 hunk_range.end.to_point(&snapshot.buffer_snapshot);
9076 editor.go_to_hunk_before_or_after_position(
9077 &snapshot,
9078 position,
9079 Direction::Next,
9080 window,
9081 cx,
9082 );
9083 editor.expand_selected_diff_hunks(cx);
9084 });
9085 }
9086 }),
9087 )
9088 .child(
9089 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
9090 .shape(IconButtonShape::Square)
9091 .icon_size(IconSize::Small)
9092 // .disabled(!has_multiple_hunks)
9093 .tooltip({
9094 let focus_handle = editor.focus_handle(cx);
9095 move |window, cx| {
9096 Tooltip::for_action_in(
9097 "Previous Hunk",
9098 &GoToPreviousHunk,
9099 &focus_handle,
9100 window,
9101 cx,
9102 )
9103 }
9104 })
9105 .on_click({
9106 let editor = editor.clone();
9107 move |_event, window, cx| {
9108 editor.update(cx, |editor, cx| {
9109 let snapshot = editor.snapshot(window, cx);
9110 let point =
9111 hunk_range.start.to_point(&snapshot.buffer_snapshot);
9112 editor.go_to_hunk_before_or_after_position(
9113 &snapshot,
9114 point,
9115 Direction::Prev,
9116 window,
9117 cx,
9118 );
9119 editor.expand_selected_diff_hunks(cx);
9120 });
9121 }
9122 }),
9123 )
9124 },
9125 )
9126 .into_any_element()
9127}