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 ScrollbarAxes, 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::scroll_amount::ScrollAmount,
19 BlockId, ChunkReplacement, ContextMenuPlacement, CursorShape, CustomBlockId, DisplayDiffHunk,
20 DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode,
21 Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle, FocusedBlock, GoToHunk,
22 GoToPreviousHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
23 InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight, LineUp,
24 OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight,
25 Selection, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS,
26 CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
27 MIN_LINE_NUMBER_DIGITS, 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, Along, AnyElement, App,
38 AvailableSpace, Axis as ScrollbarAxis, BorderStyle, Bounds, ClickEvent, ClipboardItem,
39 ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges, Element,
40 ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox, Hsla,
41 InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
42 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
43 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
44 Subscription, TextRun, TextStyleRefinement, Window,
45};
46use inline_completion::Direction;
47use itertools::Itertools;
48use language::{
49 language_settings::{
50 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
51 ShowWhitespaceSetting,
52 },
53 ChunkRendererContext,
54};
55use lsp::DiagnosticSeverity;
56use multi_buffer::{
57 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
58 MultiBufferRow, RowInfo,
59};
60use project::{
61 debugger::breakpoint_store::Breakpoint,
62 project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
63};
64use settings::Settings;
65use smallvec::{smallvec, SmallVec};
66use std::{
67 any::TypeId,
68 borrow::Cow,
69 cmp::{self, Ordering},
70 fmt::{self, Write},
71 iter, mem,
72 ops::{Deref, Range},
73 rc::Rc,
74 sync::Arc,
75};
76use sum_tree::Bias;
77use text::BufferId;
78use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
79use ui::{
80 h_flex, prelude::*, ButtonLike, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
81 POPOVER_Y_PADDING,
82};
83use unicode_segmentation::UnicodeSegmentation;
84use util::{debug_panic, RangeExt, ResultExt};
85use workspace::{item::Item, notifications::NotifyTaskExt};
86
87const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
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 register_action(editor, window, Editor::enable_breakpoint);
529 register_action(editor, window, Editor::disable_breakpoint);
530 }
531 }
532
533 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
534 let position_map = layout.position_map.clone();
535 window.on_key_event({
536 let editor = self.editor.clone();
537 move |event: &ModifiersChangedEvent, phase, window, cx| {
538 if phase != DispatchPhase::Bubble {
539 return;
540 }
541 editor.update(cx, |editor, cx| {
542 let inlay_hint_settings = inlay_hint_settings(
543 editor.selections.newest_anchor().head(),
544 &editor.buffer.read(cx).snapshot(cx),
545 cx,
546 );
547
548 if let Some(inlay_modifiers) = inlay_hint_settings
549 .toggle_on_modifiers_press
550 .as_ref()
551 .filter(|modifiers| modifiers.modified())
552 {
553 editor.refresh_inlay_hints(
554 InlayHintRefreshReason::ModifiersChanged(
555 inlay_modifiers == &event.modifiers,
556 ),
557 cx,
558 );
559 }
560
561 if editor.hover_state.focused(window, cx) {
562 return;
563 }
564
565 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
566 })
567 }
568 });
569 }
570
571 fn mouse_left_down(
572 editor: &mut Editor,
573 event: &MouseDownEvent,
574 hovered_hunk: Option<Range<Anchor>>,
575 position_map: &PositionMap,
576 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
577 window: &mut Window,
578 cx: &mut Context<Editor>,
579 ) {
580 if window.default_prevented() {
581 return;
582 }
583
584 let text_hitbox = &position_map.text_hitbox;
585 let gutter_hitbox = &position_map.gutter_hitbox;
586 let mut click_count = event.click_count;
587 let mut modifiers = event.modifiers;
588
589 if let Some(hovered_hunk) = hovered_hunk {
590 editor.toggle_single_diff_hunk(hovered_hunk, cx);
591 cx.notify();
592 return;
593 } else if gutter_hitbox.is_hovered(window) {
594 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
595 } else if !text_hitbox.is_hovered(window) {
596 return;
597 }
598
599 let is_singleton = editor.buffer().read(cx).is_singleton();
600
601 if click_count == 2 && !is_singleton {
602 match EditorSettings::get_global(cx).double_click_in_multibuffer {
603 DoubleClickInMultibuffer::Select => {
604 // do nothing special on double click, all selection logic is below
605 }
606 DoubleClickInMultibuffer::Open => {
607 if modifiers.alt {
608 // if double click is made with alt, pretend it's a regular double click without opening and alt,
609 // and run the selection logic.
610 modifiers.alt = false;
611 } else {
612 let scroll_position_row =
613 position_map.scroll_pixel_position.y / position_map.line_height;
614 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
615 + position_map.scroll_pixel_position.y)
616 / position_map.line_height)
617 as u32;
618 let multi_buffer_row = position_map
619 .snapshot
620 .display_point_to_point(
621 DisplayPoint::new(DisplayRow(display_row), 0),
622 Bias::Right,
623 )
624 .row;
625 let line_offset_from_top = display_row - scroll_position_row as u32;
626 // if double click is made without alt, open the corresponding excerp
627 editor.open_excerpts_common(
628 Some(JumpData::MultiBufferRow {
629 row: MultiBufferRow(multi_buffer_row),
630 line_offset_from_top,
631 }),
632 false,
633 window,
634 cx,
635 );
636 return;
637 }
638 }
639 }
640 }
641
642 let point_for_position = position_map.point_for_position(event.position);
643 let position = point_for_position.previous_valid;
644 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
645 editor.select(
646 SelectPhase::BeginColumnar {
647 position,
648 reset: false,
649 goal_column: point_for_position.exact_unclipped.column(),
650 },
651 window,
652 cx,
653 );
654 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
655 {
656 editor.select(
657 SelectPhase::Extend {
658 position,
659 click_count,
660 },
661 window,
662 cx,
663 );
664 } else {
665 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
666 let multi_cursor_modifier = match multi_cursor_setting {
667 MultiCursorModifier::Alt => modifiers.alt,
668 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
669 };
670 editor.select(
671 SelectPhase::Begin {
672 position,
673 add: multi_cursor_modifier,
674 click_count,
675 },
676 window,
677 cx,
678 );
679 }
680 cx.stop_propagation();
681
682 if !is_singleton {
683 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
684 + position_map.scroll_pixel_position.y)
685 / position_map.line_height) as u32;
686 let multi_buffer_row = position_map
687 .snapshot
688 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
689 .row;
690 if line_numbers
691 .get(&MultiBufferRow(multi_buffer_row))
692 .and_then(|line_number| line_number.hitbox.as_ref())
693 .is_some_and(|hitbox| hitbox.contains(&event.position))
694 {
695 let scroll_position_row =
696 position_map.scroll_pixel_position.y / position_map.line_height;
697 let line_offset_from_top = display_row - scroll_position_row as u32;
698
699 editor.open_excerpts_common(
700 Some(JumpData::MultiBufferRow {
701 row: MultiBufferRow(multi_buffer_row),
702 line_offset_from_top,
703 }),
704 modifiers.alt,
705 window,
706 cx,
707 );
708 cx.stop_propagation();
709 }
710 }
711 }
712
713 fn mouse_right_down(
714 editor: &mut Editor,
715 event: &MouseDownEvent,
716 position_map: &PositionMap,
717 window: &mut Window,
718 cx: &mut Context<Editor>,
719 ) {
720 if !position_map.text_hitbox.is_hovered(window) {
721 return;
722 }
723 let point_for_position = position_map.point_for_position(event.position);
724 mouse_context_menu::deploy_context_menu(
725 editor,
726 Some(event.position),
727 point_for_position.previous_valid,
728 window,
729 cx,
730 );
731 cx.stop_propagation();
732 }
733
734 fn mouse_middle_down(
735 editor: &mut Editor,
736 event: &MouseDownEvent,
737 position_map: &PositionMap,
738 window: &mut Window,
739 cx: &mut Context<Editor>,
740 ) {
741 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
742 return;
743 }
744
745 let point_for_position = position_map.point_for_position(event.position);
746 let position = point_for_position.previous_valid;
747
748 editor.select(
749 SelectPhase::BeginColumnar {
750 position,
751 reset: true,
752 goal_column: point_for_position.exact_unclipped.column(),
753 },
754 window,
755 cx,
756 );
757 }
758
759 fn mouse_up(
760 editor: &mut Editor,
761 event: &MouseUpEvent,
762 position_map: &PositionMap,
763 window: &mut Window,
764 cx: &mut Context<Editor>,
765 ) {
766 let text_hitbox = &position_map.text_hitbox;
767 let end_selection = editor.has_pending_selection();
768 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
769
770 if end_selection {
771 editor.select(SelectPhase::End, window, cx);
772 }
773
774 if end_selection && pending_nonempty_selections {
775 cx.stop_propagation();
776 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
777 && event.button == MouseButton::Middle
778 {
779 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
780 return;
781 }
782
783 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
784 if EditorSettings::get_global(cx).middle_click_paste {
785 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
786 let point_for_position = position_map.point_for_position(event.position);
787 let position = point_for_position.previous_valid;
788
789 editor.select(
790 SelectPhase::Begin {
791 position,
792 add: false,
793 click_count: 1,
794 },
795 window,
796 cx,
797 );
798 editor.insert(&text, window, cx);
799 }
800 cx.stop_propagation()
801 }
802 }
803 }
804
805 fn click(
806 editor: &mut Editor,
807 event: &ClickEvent,
808 position_map: &PositionMap,
809 window: &mut Window,
810 cx: &mut Context<Editor>,
811 ) {
812 let text_hitbox = &position_map.text_hitbox;
813 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
814
815 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
816 let multi_cursor_modifier = match multi_cursor_setting {
817 MultiCursorModifier::Alt => event.modifiers().secondary(),
818 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
819 };
820
821 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
822 let point = position_map.point_for_position(event.up.position);
823 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
824
825 cx.stop_propagation();
826 }
827 }
828
829 fn mouse_dragged(
830 editor: &mut Editor,
831 event: &MouseMoveEvent,
832 position_map: &PositionMap,
833 window: &mut Window,
834 cx: &mut Context<Editor>,
835 ) {
836 if !editor.has_pending_selection() {
837 return;
838 }
839
840 let text_bounds = position_map.text_hitbox.bounds;
841 let point_for_position = position_map.point_for_position(event.position);
842 let mut scroll_delta = gpui::Point::<f32>::default();
843 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
844 let top = text_bounds.origin.y + vertical_margin;
845 let bottom = text_bounds.bottom_left().y - vertical_margin;
846 if event.position.y < top {
847 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
848 }
849 if event.position.y > bottom {
850 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
851 }
852
853 // We need horizontal width of text
854 let style = editor.style.clone().unwrap_or_default();
855 let font_id = window.text_system().resolve_font(&style.text.font());
856 let font_size = style.text.font_size.to_pixels(window.rem_size());
857 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
858
859 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
860
861 let scroll_space: Pixels = scroll_margin_x * em_width;
862
863 let left = text_bounds.origin.x + scroll_space;
864 let right = text_bounds.top_right().x - scroll_space;
865
866 if event.position.x < left {
867 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
868 }
869 if event.position.x > right {
870 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
871 }
872
873 editor.select(
874 SelectPhase::Update {
875 position: point_for_position.previous_valid,
876 goal_column: point_for_position.exact_unclipped.column(),
877 scroll_delta,
878 },
879 window,
880 cx,
881 );
882 }
883
884 fn mouse_moved(
885 editor: &mut Editor,
886 event: &MouseMoveEvent,
887 position_map: &PositionMap,
888 window: &mut Window,
889 cx: &mut Context<Editor>,
890 ) {
891 let text_hitbox = &position_map.text_hitbox;
892 let gutter_hitbox = &position_map.gutter_hitbox;
893 let modifiers = event.modifiers;
894 let gutter_hovered = gutter_hitbox.is_hovered(window);
895 editor.set_gutter_hovered(gutter_hovered, cx);
896 editor.gutter_breakpoint_indicator = None;
897
898 if gutter_hovered {
899 let new_point = position_map
900 .point_for_position(event.position)
901 .previous_valid;
902 let buffer_anchor = position_map
903 .snapshot
904 .display_point_to_anchor(new_point, Bias::Left);
905
906 if position_map
907 .snapshot
908 .buffer_snapshot
909 .buffer_for_excerpt(buffer_anchor.excerpt_id)
910 .is_some_and(|buffer| buffer.file().is_some())
911 {
912 editor.gutter_breakpoint_indicator = Some(new_point);
913 }
914 }
915
916 cx.notify();
917
918 // Don't trigger hover popover if mouse is hovering over context menu
919 if text_hitbox.is_hovered(window) {
920 let point_for_position = position_map.point_for_position(event.position);
921
922 editor.update_hovered_link(
923 point_for_position,
924 &position_map.snapshot,
925 modifiers,
926 window,
927 cx,
928 );
929
930 if let Some(point) = point_for_position.as_valid() {
931 let anchor = position_map
932 .snapshot
933 .buffer_snapshot
934 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
935 hover_at(editor, Some(anchor), window, cx);
936 Self::update_visible_cursor(editor, point, position_map, window, cx);
937 } else {
938 hover_at(editor, None, window, cx);
939 }
940 } else {
941 editor.hide_hovered_link(cx);
942 hover_at(editor, None, window, cx);
943 if gutter_hovered {
944 cx.stop_propagation();
945 }
946 }
947 }
948
949 fn update_visible_cursor(
950 editor: &mut Editor,
951 point: DisplayPoint,
952 position_map: &PositionMap,
953 window: &mut Window,
954 cx: &mut Context<Editor>,
955 ) {
956 let snapshot = &position_map.snapshot;
957 let Some(hub) = editor.collaboration_hub() else {
958 return;
959 };
960 let start = snapshot.display_snapshot.clip_point(
961 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
962 Bias::Left,
963 );
964 let end = snapshot.display_snapshot.clip_point(
965 DisplayPoint::new(
966 point.row(),
967 (point.column() + 1).min(snapshot.line_len(point.row())),
968 ),
969 Bias::Right,
970 );
971
972 let range = snapshot
973 .buffer_snapshot
974 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
975 ..snapshot
976 .buffer_snapshot
977 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
978
979 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
980 return;
981 };
982 let key = crate::HoveredCursor {
983 replica_id: selection.replica_id,
984 selection_id: selection.selection.id,
985 };
986 editor.hovered_cursors.insert(
987 key.clone(),
988 cx.spawn_in(window, async move |editor, cx| {
989 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
990 editor
991 .update(cx, |editor, cx| {
992 editor.hovered_cursors.remove(&key);
993 cx.notify();
994 })
995 .ok();
996 }),
997 );
998 cx.notify()
999 }
1000
1001 fn layout_selections(
1002 &self,
1003 start_anchor: Anchor,
1004 end_anchor: Anchor,
1005 local_selections: &[Selection<Point>],
1006 snapshot: &EditorSnapshot,
1007 start_row: DisplayRow,
1008 end_row: DisplayRow,
1009 window: &mut Window,
1010 cx: &mut App,
1011 ) -> (
1012 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1013 BTreeMap<DisplayRow, LineHighlightSpec>,
1014 Option<DisplayPoint>,
1015 ) {
1016 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1017 let mut active_rows = BTreeMap::new();
1018 let mut newest_selection_head = None;
1019 self.editor.update(cx, |editor, cx| {
1020 if editor.show_local_selections {
1021 let mut layouts = Vec::new();
1022 let newest = editor.selections.newest(cx);
1023 for selection in local_selections.iter().cloned() {
1024 let is_empty = selection.start == selection.end;
1025 let is_newest = selection == newest;
1026
1027 let layout = SelectionLayout::new(
1028 selection,
1029 editor.selections.line_mode,
1030 editor.cursor_shape,
1031 &snapshot.display_snapshot,
1032 is_newest,
1033 editor.leader_peer_id.is_none(),
1034 None,
1035 );
1036 if is_newest {
1037 newest_selection_head = Some(layout.head);
1038 }
1039
1040 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1041 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1042 {
1043 let contains_non_empty_selection = active_rows
1044 .entry(DisplayRow(row))
1045 .or_insert_with(LineHighlightSpec::default);
1046 contains_non_empty_selection.selection |= !is_empty;
1047 }
1048 layouts.push(layout);
1049 }
1050
1051 let player = editor.current_user_player_color(cx);
1052 selections.push((player, layouts));
1053 }
1054
1055 if let Some(collaboration_hub) = &editor.collaboration_hub {
1056 // When following someone, render the local selections in their color.
1057 if let Some(leader_id) = editor.leader_peer_id {
1058 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1059 {
1060 if let Some(participant_index) = collaboration_hub
1061 .user_participant_indices(cx)
1062 .get(&collaborator.user_id)
1063 {
1064 if let Some((local_selection_style, _)) = selections.first_mut() {
1065 *local_selection_style = cx
1066 .theme()
1067 .players()
1068 .color_for_participant(participant_index.0);
1069 }
1070 }
1071 }
1072 }
1073
1074 let mut remote_selections = HashMap::default();
1075 for selection in snapshot.remote_selections_in_range(
1076 &(start_anchor..end_anchor),
1077 collaboration_hub.as_ref(),
1078 cx,
1079 ) {
1080 let selection_style =
1081 Self::get_participant_color(selection.participant_index, cx);
1082
1083 // Don't re-render the leader's selections, since the local selections
1084 // match theirs.
1085 if Some(selection.peer_id) == editor.leader_peer_id {
1086 continue;
1087 }
1088 let key = HoveredCursor {
1089 replica_id: selection.replica_id,
1090 selection_id: selection.selection.id,
1091 };
1092
1093 let is_shown =
1094 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1095
1096 remote_selections
1097 .entry(selection.replica_id)
1098 .or_insert((selection_style, Vec::new()))
1099 .1
1100 .push(SelectionLayout::new(
1101 selection.selection,
1102 selection.line_mode,
1103 selection.cursor_shape,
1104 &snapshot.display_snapshot,
1105 false,
1106 false,
1107 if is_shown { selection.user_name } else { None },
1108 ));
1109 }
1110
1111 selections.extend(remote_selections.into_values());
1112 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1113 let layouts = snapshot
1114 .buffer_snapshot
1115 .selections_in_range(&(start_anchor..end_anchor), true)
1116 .map(move |(_, line_mode, cursor_shape, selection)| {
1117 SelectionLayout::new(
1118 selection,
1119 line_mode,
1120 cursor_shape,
1121 &snapshot.display_snapshot,
1122 false,
1123 false,
1124 None,
1125 )
1126 })
1127 .collect::<Vec<_>>();
1128 let player = editor.current_user_player_color(cx);
1129 selections.push((player, layouts));
1130 }
1131 });
1132 (selections, active_rows, newest_selection_head)
1133 }
1134
1135 fn collect_cursors(
1136 &self,
1137 snapshot: &EditorSnapshot,
1138 cx: &mut App,
1139 ) -> Vec<(DisplayPoint, Hsla)> {
1140 let editor = self.editor.read(cx);
1141 let mut cursors = Vec::new();
1142 let mut skip_local = false;
1143 let mut add_cursor = |anchor: Anchor, color| {
1144 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1145 };
1146 // Remote cursors
1147 if let Some(collaboration_hub) = &editor.collaboration_hub {
1148 for remote_selection in snapshot.remote_selections_in_range(
1149 &(Anchor::min()..Anchor::max()),
1150 collaboration_hub.deref(),
1151 cx,
1152 ) {
1153 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1154 add_cursor(remote_selection.selection.head(), color.cursor);
1155 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1156 skip_local = true;
1157 }
1158 }
1159 }
1160 // Local cursors
1161 if !skip_local {
1162 let color = cx.theme().players().local().cursor;
1163 editor.selections.disjoint.iter().for_each(|selection| {
1164 add_cursor(selection.head(), color);
1165 });
1166 if let Some(ref selection) = editor.selections.pending_anchor() {
1167 add_cursor(selection.head(), color);
1168 }
1169 }
1170 cursors
1171 }
1172
1173 fn layout_visible_cursors(
1174 &self,
1175 snapshot: &EditorSnapshot,
1176 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1177 block_start_rows: &HashSet<DisplayRow>,
1178 visible_display_row_range: Range<DisplayRow>,
1179 line_layouts: &[LineWithInvisibles],
1180 text_hitbox: &Hitbox,
1181 content_origin: gpui::Point<Pixels>,
1182 scroll_position: gpui::Point<f32>,
1183 scroll_pixel_position: gpui::Point<Pixels>,
1184 line_height: Pixels,
1185 em_width: Pixels,
1186 em_advance: Pixels,
1187 autoscroll_containing_element: bool,
1188 window: &mut Window,
1189 cx: &mut App,
1190 ) -> Vec<CursorLayout> {
1191 let mut autoscroll_bounds = None;
1192 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1193 let mut cursors = Vec::new();
1194
1195 let show_local_cursors = editor.show_local_cursors(window, cx);
1196
1197 for (player_color, selections) in selections {
1198 for selection in selections {
1199 let cursor_position = selection.head;
1200
1201 let in_range = visible_display_row_range.contains(&cursor_position.row());
1202 if (selection.is_local && !show_local_cursors)
1203 || !in_range
1204 || block_start_rows.contains(&cursor_position.row())
1205 {
1206 continue;
1207 }
1208
1209 let cursor_row_layout = &line_layouts
1210 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1211 let cursor_column = cursor_position.column() as usize;
1212
1213 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1214 let mut block_width =
1215 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1216 if block_width == Pixels::ZERO {
1217 block_width = em_advance;
1218 }
1219 let block_text = if let CursorShape::Block = selection.cursor_shape {
1220 snapshot
1221 .grapheme_at(cursor_position)
1222 .or_else(|| {
1223 if cursor_column == 0 {
1224 snapshot.placeholder_text().and_then(|s| {
1225 s.graphemes(true).next().map(|s| s.to_string().into())
1226 })
1227 } else {
1228 None
1229 }
1230 })
1231 .and_then(|text| {
1232 let len = text.len();
1233
1234 let font = cursor_row_layout
1235 .font_id_for_index(cursor_column)
1236 .and_then(|cursor_font_id| {
1237 window.text_system().get_font_for_id(cursor_font_id)
1238 })
1239 .unwrap_or(self.style.text.font());
1240
1241 // Invert the text color for the block cursor. Ensure that the text
1242 // color is opaque enough to be visible against the background color.
1243 //
1244 // 0.75 is an arbitrary threshold to determine if the background color is
1245 // opaque enough to use as a text color.
1246 //
1247 // TODO: In the future we should ensure themes have a `text_inverse` color.
1248 let color = if cx.theme().colors().editor_background.a < 0.75 {
1249 match cx.theme().appearance {
1250 Appearance::Dark => Hsla::black(),
1251 Appearance::Light => Hsla::white(),
1252 }
1253 } else {
1254 cx.theme().colors().editor_background
1255 };
1256
1257 window
1258 .text_system()
1259 .shape_line(
1260 text,
1261 cursor_row_layout.font_size,
1262 &[TextRun {
1263 len,
1264 font,
1265 color,
1266 background_color: None,
1267 strikethrough: None,
1268 underline: None,
1269 }],
1270 )
1271 .log_err()
1272 })
1273 } else {
1274 None
1275 };
1276
1277 let x = cursor_character_x - scroll_pixel_position.x;
1278 let y = (cursor_position.row().as_f32()
1279 - scroll_pixel_position.y / line_height)
1280 * line_height;
1281 if selection.is_newest {
1282 editor.pixel_position_of_newest_cursor = Some(point(
1283 text_hitbox.origin.x + x + block_width / 2.,
1284 text_hitbox.origin.y + y + line_height / 2.,
1285 ));
1286
1287 if autoscroll_containing_element {
1288 let top = text_hitbox.origin.y
1289 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1290 * line_height;
1291 let left = text_hitbox.origin.x
1292 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1293 .max(0.)
1294 * em_width;
1295
1296 let bottom = text_hitbox.origin.y
1297 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1298 * line_height;
1299 let right = text_hitbox.origin.x
1300 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1301 * em_width;
1302
1303 autoscroll_bounds =
1304 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1305 }
1306 }
1307
1308 let mut cursor = CursorLayout {
1309 color: player_color.cursor,
1310 block_width,
1311 origin: point(x, y),
1312 line_height,
1313 shape: selection.cursor_shape,
1314 block_text,
1315 cursor_name: None,
1316 };
1317 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1318 string: name,
1319 color: self.style.background,
1320 is_top_row: cursor_position.row().0 == 0,
1321 });
1322 cursor.layout(content_origin, cursor_name, window, cx);
1323 cursors.push(cursor);
1324 }
1325 }
1326
1327 cursors
1328 });
1329
1330 if let Some(bounds) = autoscroll_bounds {
1331 window.request_autoscroll(bounds);
1332 }
1333
1334 cursor_layouts
1335 }
1336
1337 fn layout_scrollbars(
1338 &self,
1339 snapshot: &EditorSnapshot,
1340 scrollbar_range_data: ScrollbarLayoutInformation,
1341 scroll_position: gpui::Point<f32>,
1342 non_visible_cursors: bool,
1343 window: &mut Window,
1344 cx: &mut App,
1345 ) -> Option<EditorScrollbars> {
1346 if snapshot.mode != EditorMode::Full {
1347 return None;
1348 }
1349
1350 // If a drag took place after we started dragging the scrollbar,
1351 // cancel the scrollbar drag.
1352 if cx.has_active_drag() {
1353 self.editor.update(cx, |editor, cx| {
1354 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1355 });
1356 }
1357
1358 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1359 let show_scrollbars = self.editor.read(cx).show_scrollbars
1360 && match scrollbar_settings.show {
1361 ShowScrollbar::Auto => {
1362 let editor = self.editor.read(cx);
1363 let is_singleton = editor.is_singleton(cx);
1364 // Git
1365 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1366 ||
1367 // Buffer Search Results
1368 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1369 ||
1370 // Selected Text Occurrences
1371 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1372 ||
1373 // Selected Symbol Occurrences
1374 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1375 ||
1376 // Diagnostics
1377 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1378 ||
1379 // Cursors out of sight
1380 non_visible_cursors
1381 ||
1382 // Scrollmanager
1383 editor.scroll_manager.scrollbars_visible()
1384 }
1385 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1386 ShowScrollbar::Always => true,
1387 ShowScrollbar::Never => return None,
1388 };
1389
1390 Some(EditorScrollbars::from_scrollbar_axes(
1391 scrollbar_settings.axes,
1392 &scrollbar_range_data,
1393 scroll_position,
1394 self.style.scrollbar_width,
1395 show_scrollbars,
1396 window,
1397 ))
1398 }
1399
1400 fn prepaint_crease_toggles(
1401 &self,
1402 crease_toggles: &mut [Option<AnyElement>],
1403 line_height: Pixels,
1404 gutter_dimensions: &GutterDimensions,
1405 gutter_settings: crate::editor_settings::Gutter,
1406 scroll_pixel_position: gpui::Point<Pixels>,
1407 gutter_hitbox: &Hitbox,
1408 window: &mut Window,
1409 cx: &mut App,
1410 ) {
1411 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1412 if let Some(crease_toggle) = crease_toggle {
1413 debug_assert!(gutter_settings.folds);
1414 let available_space = size(
1415 AvailableSpace::MinContent,
1416 AvailableSpace::Definite(line_height * 0.55),
1417 );
1418 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1419
1420 let position = point(
1421 gutter_dimensions.width - gutter_dimensions.right_padding,
1422 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1423 );
1424 let centering_offset = point(
1425 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1426 (line_height - crease_toggle_size.height) / 2.,
1427 );
1428 let origin = gutter_hitbox.origin + position + centering_offset;
1429 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1430 }
1431 }
1432 }
1433
1434 fn prepaint_expand_toggles(
1435 &self,
1436 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1437 window: &mut Window,
1438 cx: &mut App,
1439 ) {
1440 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1441 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1442 expand_toggle.layout_as_root(available_space, window, cx);
1443 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1444 }
1445 }
1446
1447 fn prepaint_crease_trailers(
1448 &self,
1449 trailers: Vec<Option<AnyElement>>,
1450 lines: &[LineWithInvisibles],
1451 line_height: Pixels,
1452 content_origin: gpui::Point<Pixels>,
1453 scroll_pixel_position: gpui::Point<Pixels>,
1454 em_width: Pixels,
1455 window: &mut Window,
1456 cx: &mut App,
1457 ) -> Vec<Option<CreaseTrailerLayout>> {
1458 trailers
1459 .into_iter()
1460 .enumerate()
1461 .map(|(ix, element)| {
1462 let mut element = element?;
1463 let available_space = size(
1464 AvailableSpace::MinContent,
1465 AvailableSpace::Definite(line_height),
1466 );
1467 let size = element.layout_as_root(available_space, window, cx);
1468
1469 let line = &lines[ix];
1470 let padding = if line.width == Pixels::ZERO {
1471 Pixels::ZERO
1472 } else {
1473 4. * em_width
1474 };
1475 let position = point(
1476 scroll_pixel_position.x + line.width + padding,
1477 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1478 );
1479 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1480 let origin = content_origin + position + centering_offset;
1481 element.prepaint_as_root(origin, available_space, window, cx);
1482 Some(CreaseTrailerLayout {
1483 element,
1484 bounds: Bounds::new(origin, size),
1485 })
1486 })
1487 .collect()
1488 }
1489
1490 // Folds contained in a hunk are ignored apart from shrinking visual size
1491 // If a fold contains any hunks then that fold line is marked as modified
1492 fn layout_gutter_diff_hunks(
1493 &self,
1494 line_height: Pixels,
1495 gutter_hitbox: &Hitbox,
1496 display_rows: Range<DisplayRow>,
1497 snapshot: &EditorSnapshot,
1498 window: &mut Window,
1499 cx: &mut App,
1500 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1501 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1502 let mut display_hunks = snapshot
1503 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1504 .map(|hunk| (hunk, None))
1505 .collect::<Vec<_>>();
1506 let git_gutter_setting = ProjectSettings::get_global(cx)
1507 .git
1508 .git_gutter
1509 .unwrap_or_default();
1510 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1511 for (hunk, hitbox) in &mut display_hunks {
1512 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1513 let hunk_bounds =
1514 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1515 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1516 }
1517 }
1518 }
1519
1520 display_hunks
1521 }
1522
1523 fn layout_inline_diagnostics(
1524 &self,
1525 line_layouts: &[LineWithInvisibles],
1526 crease_trailers: &[Option<CreaseTrailerLayout>],
1527 content_origin: gpui::Point<Pixels>,
1528 scroll_pixel_position: gpui::Point<Pixels>,
1529 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1530 start_row: DisplayRow,
1531 end_row: DisplayRow,
1532 line_height: Pixels,
1533 em_width: Pixels,
1534 style: &EditorStyle,
1535 window: &mut Window,
1536 cx: &mut App,
1537 ) -> HashMap<DisplayRow, AnyElement> {
1538 let max_severity = ProjectSettings::get_global(cx)
1539 .diagnostics
1540 .inline
1541 .max_severity
1542 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1543 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1544 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1545 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1546 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1547 });
1548
1549 let active_diagnostics_group = self
1550 .editor
1551 .read(cx)
1552 .active_diagnostics
1553 .as_ref()
1554 .map(|active_diagnostics| active_diagnostics.group_id);
1555
1556 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1557 let snapshot = editor.snapshot(window, cx);
1558 editor
1559 .inline_diagnostics
1560 .iter()
1561 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1562 .filter(|(_, diagnostic)| match active_diagnostics_group {
1563 Some(active_diagnostics_group) => {
1564 // Active diagnostics are all shown in the editor already, no need to display them inline
1565 diagnostic.group_id != active_diagnostics_group
1566 }
1567 None => true,
1568 })
1569 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1570 .skip_while(|(point, _)| point.row() < start_row)
1571 .take_while(|(point, _)| point.row() < end_row)
1572 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1573 acc.entry(point.row())
1574 .or_insert_with(Vec::new)
1575 .push(diagnostic);
1576 acc
1577 })
1578 });
1579
1580 if diagnostics_by_rows.is_empty() {
1581 return HashMap::default();
1582 }
1583
1584 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1585 &DiagnosticSeverity::ERROR => Color::Error,
1586 &DiagnosticSeverity::WARNING => Color::Warning,
1587 &DiagnosticSeverity::INFORMATION => Color::Info,
1588 &DiagnosticSeverity::HINT => Color::Hint,
1589 _ => Color::Error,
1590 };
1591
1592 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1593 let min_x = ProjectSettings::get_global(cx)
1594 .diagnostics
1595 .inline
1596 .min_column as f32
1597 * em_width;
1598
1599 let mut elements = HashMap::default();
1600 for (row, mut diagnostics) in diagnostics_by_rows {
1601 diagnostics.sort_by_key(|diagnostic| {
1602 (
1603 diagnostic.severity,
1604 std::cmp::Reverse(diagnostic.is_primary),
1605 diagnostic.start.row,
1606 diagnostic.start.column,
1607 )
1608 });
1609
1610 let Some(diagnostic_to_render) = diagnostics
1611 .iter()
1612 .find(|diagnostic| diagnostic.is_primary)
1613 .or_else(|| diagnostics.first())
1614 else {
1615 continue;
1616 };
1617
1618 let pos_y = content_origin.y
1619 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1620
1621 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1622 let pos_x = {
1623 let crease_trailer_layout = &crease_trailers[window_ix];
1624 let line_layout = &line_layouts[window_ix];
1625
1626 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1627 crease_trailer.bounds.right()
1628 } else {
1629 content_origin.x - scroll_pixel_position.x + line_layout.width
1630 };
1631
1632 let padded_line = line_end + padding;
1633 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1634
1635 cmp::max(padded_line, min_start)
1636 };
1637
1638 let behind_inline_completion_popover = inline_completion_popover_origin
1639 .as_ref()
1640 .map_or(false, |inline_completion_popover_origin| {
1641 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1642 });
1643 let opacity = if behind_inline_completion_popover {
1644 0.5
1645 } else {
1646 1.0
1647 };
1648
1649 let mut element = h_flex()
1650 .id(("diagnostic", row.0))
1651 .h(line_height)
1652 .w_full()
1653 .px_1()
1654 .rounded_xs()
1655 .opacity(opacity)
1656 .bg(severity_to_color(&diagnostic_to_render.severity)
1657 .color(cx)
1658 .opacity(0.05))
1659 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1660 .text_sm()
1661 .font_family(style.text.font().family)
1662 .child(diagnostic_to_render.message.clone())
1663 .into_any();
1664
1665 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1666
1667 elements.insert(row, element);
1668 }
1669
1670 elements
1671 }
1672
1673 fn layout_inline_blame(
1674 &self,
1675 display_row: DisplayRow,
1676 row_info: &RowInfo,
1677 line_layout: &LineWithInvisibles,
1678 crease_trailer: Option<&CreaseTrailerLayout>,
1679 em_width: Pixels,
1680 content_origin: gpui::Point<Pixels>,
1681 scroll_pixel_position: gpui::Point<Pixels>,
1682 line_height: Pixels,
1683 window: &mut Window,
1684 cx: &mut App,
1685 ) -> Option<AnyElement> {
1686 if !self
1687 .editor
1688 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1689 {
1690 return None;
1691 }
1692
1693 let editor = self.editor.read(cx);
1694 let blame = editor.blame.clone()?;
1695 let padding = {
1696 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1697 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1698
1699 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1700
1701 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1702 match &inline_completion.completion {
1703 InlineCompletion::Edit {
1704 display_mode: EditDisplayMode::TabAccept,
1705 ..
1706 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1707 _ => {}
1708 }
1709 }
1710
1711 padding * em_width
1712 };
1713
1714 let blame_entry = blame
1715 .update(cx, |blame, cx| {
1716 blame.blame_for_rows(&[*row_info], cx).next()
1717 })
1718 .flatten()?;
1719
1720 let mut element =
1721 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1722
1723 let start_y = content_origin.y
1724 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1725
1726 let start_x = {
1727 let line_end = if let Some(crease_trailer) = crease_trailer {
1728 crease_trailer.bounds.right()
1729 } else {
1730 content_origin.x - scroll_pixel_position.x + line_layout.width
1731 };
1732
1733 let padded_line_end = line_end + padding;
1734
1735 let min_column_in_pixels = ProjectSettings::get_global(cx)
1736 .git
1737 .inline_blame
1738 .and_then(|settings| settings.min_column)
1739 .map(|col| self.column_pixels(col as usize, window, cx))
1740 .unwrap_or(px(0.));
1741 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1742
1743 cmp::max(padded_line_end, min_start)
1744 };
1745
1746 let absolute_offset = point(start_x, start_y);
1747 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1748
1749 Some(element)
1750 }
1751
1752 fn layout_blame_entries(
1753 &self,
1754 buffer_rows: &[RowInfo],
1755 em_width: Pixels,
1756 scroll_position: gpui::Point<f32>,
1757 line_height: Pixels,
1758 gutter_hitbox: &Hitbox,
1759 max_width: Option<Pixels>,
1760 window: &mut Window,
1761 cx: &mut App,
1762 ) -> Option<Vec<AnyElement>> {
1763 if !self
1764 .editor
1765 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1766 {
1767 return None;
1768 }
1769
1770 let blame = self.editor.read(cx).blame.clone()?;
1771 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1772 blame.blame_for_rows(buffer_rows, cx).collect()
1773 });
1774
1775 let width = if let Some(max_width) = max_width {
1776 AvailableSpace::Definite(max_width)
1777 } else {
1778 AvailableSpace::MaxContent
1779 };
1780 let scroll_top = scroll_position.y * line_height;
1781 let start_x = em_width;
1782
1783 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1784
1785 let shaped_lines = blamed_rows
1786 .into_iter()
1787 .enumerate()
1788 .flat_map(|(ix, blame_entry)| {
1789 if let Some(blame_entry) = blame_entry {
1790 let mut element = render_blame_entry(
1791 ix,
1792 &blame,
1793 blame_entry,
1794 &self.style,
1795 &mut last_used_color,
1796 self.editor.clone(),
1797 cx,
1798 );
1799
1800 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1801 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1802
1803 element.prepaint_as_root(
1804 absolute_offset,
1805 size(width, AvailableSpace::MinContent),
1806 window,
1807 cx,
1808 );
1809
1810 Some(element)
1811 } else {
1812 None
1813 }
1814 })
1815 .collect();
1816
1817 Some(shaped_lines)
1818 }
1819
1820 fn layout_indent_guides(
1821 &self,
1822 content_origin: gpui::Point<Pixels>,
1823 text_origin: gpui::Point<Pixels>,
1824 visible_buffer_range: Range<MultiBufferRow>,
1825 scroll_pixel_position: gpui::Point<Pixels>,
1826 line_height: Pixels,
1827 snapshot: &DisplaySnapshot,
1828 window: &mut Window,
1829 cx: &mut App,
1830 ) -> Option<Vec<IndentGuideLayout>> {
1831 let indent_guides = self.editor.update(cx, |editor, cx| {
1832 editor.indent_guides(visible_buffer_range, snapshot, cx)
1833 })?;
1834
1835 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1836 editor
1837 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1838 .unwrap_or_default()
1839 });
1840
1841 Some(
1842 indent_guides
1843 .into_iter()
1844 .enumerate()
1845 .filter_map(|(i, indent_guide)| {
1846 let single_indent_width =
1847 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1848 let total_width = single_indent_width * indent_guide.depth as f32;
1849 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1850 if start_x >= text_origin.x {
1851 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1852 indent_guide.start_row..indent_guide.end_row,
1853 line_height,
1854 snapshot,
1855 );
1856
1857 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1858
1859 Some(IndentGuideLayout {
1860 origin: point(start_x, start_y),
1861 length,
1862 single_indent_width,
1863 depth: indent_guide.depth,
1864 active: active_indent_guide_indices.contains(&i),
1865 settings: indent_guide.settings,
1866 })
1867 } else {
1868 None
1869 }
1870 })
1871 .collect(),
1872 )
1873 }
1874
1875 fn calculate_indent_guide_bounds(
1876 row_range: Range<MultiBufferRow>,
1877 line_height: Pixels,
1878 snapshot: &DisplaySnapshot,
1879 ) -> (gpui::Pixels, gpui::Pixels) {
1880 let start_point = Point::new(row_range.start.0, 0);
1881 let end_point = Point::new(row_range.end.0, 0);
1882
1883 let row_range = start_point.to_display_point(snapshot).row()
1884 ..end_point.to_display_point(snapshot).row();
1885
1886 let mut prev_line = start_point;
1887 prev_line.row = prev_line.row.saturating_sub(1);
1888 let prev_line = prev_line.to_display_point(snapshot).row();
1889
1890 let mut cons_line = end_point;
1891 cons_line.row += 1;
1892 let cons_line = cons_line.to_display_point(snapshot).row();
1893
1894 let mut offset_y = row_range.start.0 as f32 * line_height;
1895 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1896
1897 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1898 if row_range.end == cons_line {
1899 length += line_height;
1900 }
1901
1902 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1903 // we want to extend the indent guide to the start of the block.
1904 let mut block_height = 0;
1905 let mut block_offset = 0;
1906 let mut found_excerpt_header = false;
1907 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1908 if matches!(block, Block::ExcerptBoundary { .. }) {
1909 found_excerpt_header = true;
1910 break;
1911 }
1912 block_offset += block.height();
1913 block_height += block.height();
1914 }
1915 if !found_excerpt_header {
1916 offset_y -= block_offset as f32 * line_height;
1917 length += block_height as f32 * line_height;
1918 }
1919
1920 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1921 // we want to ensure that the indent guide stops before the excerpt header.
1922 let mut block_height = 0;
1923 let mut found_excerpt_header = false;
1924 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1925 if matches!(block, Block::ExcerptBoundary { .. }) {
1926 found_excerpt_header = true;
1927 }
1928 block_height += block.height();
1929 }
1930 if found_excerpt_header {
1931 length -= block_height as f32 * line_height;
1932 }
1933
1934 (offset_y, length)
1935 }
1936
1937 fn layout_breakpoints(
1938 &self,
1939 line_height: Pixels,
1940 range: Range<DisplayRow>,
1941 scroll_pixel_position: gpui::Point<Pixels>,
1942 gutter_dimensions: &GutterDimensions,
1943 gutter_hitbox: &Hitbox,
1944 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
1945 snapshot: &EditorSnapshot,
1946 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
1947 row_infos: &[RowInfo],
1948 window: &mut Window,
1949 cx: &mut App,
1950 ) -> Vec<AnyElement> {
1951 self.editor.update(cx, |editor, cx| {
1952 breakpoints
1953 .into_iter()
1954 .filter_map(|(display_row, (text_anchor, bp))| {
1955 if row_infos
1956 .get((display_row.0.saturating_sub(range.start.0)) as usize)
1957 .is_some_and(|row_info| row_info.expand_info.is_some())
1958 {
1959 return None;
1960 }
1961
1962 if range.start > display_row || range.end < display_row {
1963 return None;
1964 }
1965
1966 let row =
1967 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
1968 if snapshot.is_line_folded(row) {
1969 return None;
1970 }
1971
1972 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
1973
1974 let button = prepaint_gutter_button(
1975 button,
1976 display_row,
1977 line_height,
1978 gutter_dimensions,
1979 scroll_pixel_position,
1980 gutter_hitbox,
1981 display_hunks,
1982 window,
1983 cx,
1984 );
1985 Some(button)
1986 })
1987 .collect_vec()
1988 })
1989 }
1990
1991 #[allow(clippy::too_many_arguments)]
1992 fn layout_run_indicators(
1993 &self,
1994 line_height: Pixels,
1995 range: Range<DisplayRow>,
1996 row_infos: &[RowInfo],
1997 scroll_pixel_position: gpui::Point<Pixels>,
1998 gutter_dimensions: &GutterDimensions,
1999 gutter_hitbox: &Hitbox,
2000 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2001 snapshot: &EditorSnapshot,
2002 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2003 window: &mut Window,
2004 cx: &mut App,
2005 ) -> Vec<AnyElement> {
2006 self.editor.update(cx, |editor, cx| {
2007 let active_task_indicator_row =
2008 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2009 deployed_from_indicator,
2010 actions,
2011 ..
2012 })) = editor.context_menu.borrow().as_ref()
2013 {
2014 actions
2015 .tasks
2016 .as_ref()
2017 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2018 .or(*deployed_from_indicator)
2019 } else {
2020 None
2021 };
2022
2023 let offset_range_start =
2024 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2025
2026 let offset_range_end =
2027 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2028
2029 editor
2030 .tasks
2031 .iter()
2032 .filter_map(|(_, tasks)| {
2033 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2034 if multibuffer_point < offset_range_start
2035 || multibuffer_point > offset_range_end
2036 {
2037 return None;
2038 }
2039 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2040 let buffer_folded = snapshot
2041 .buffer_snapshot
2042 .buffer_line_for_row(multibuffer_row)
2043 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2044 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2045 .unwrap_or(false);
2046 if buffer_folded {
2047 return None;
2048 }
2049
2050 if snapshot.is_line_folded(multibuffer_row) {
2051 // Skip folded indicators, unless it's the starting line of a fold.
2052 if multibuffer_row
2053 .0
2054 .checked_sub(1)
2055 .map_or(false, |previous_row| {
2056 snapshot.is_line_folded(MultiBufferRow(previous_row))
2057 })
2058 {
2059 return None;
2060 }
2061 }
2062
2063 let display_row = multibuffer_point.to_display_point(snapshot).row();
2064 if row_infos
2065 .get((display_row - range.start).0 as usize)
2066 .is_some_and(|row_info| row_info.expand_info.is_some())
2067 {
2068 return None;
2069 }
2070
2071 let button = editor.render_run_indicator(
2072 &self.style,
2073 Some(display_row) == active_task_indicator_row,
2074 display_row,
2075 breakpoints.remove(&display_row),
2076 cx,
2077 );
2078
2079 let button = prepaint_gutter_button(
2080 button,
2081 display_row,
2082 line_height,
2083 gutter_dimensions,
2084 scroll_pixel_position,
2085 gutter_hitbox,
2086 display_hunks,
2087 window,
2088 cx,
2089 );
2090 Some(button)
2091 })
2092 .collect_vec()
2093 })
2094 }
2095
2096 fn layout_expand_toggles(
2097 &self,
2098 gutter_hitbox: &Hitbox,
2099 gutter_dimensions: GutterDimensions,
2100 em_width: Pixels,
2101 line_height: Pixels,
2102 scroll_position: gpui::Point<f32>,
2103 buffer_rows: &[RowInfo],
2104 window: &mut Window,
2105 cx: &mut App,
2106 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2107 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2108
2109 let scroll_top = scroll_position.y * line_height;
2110
2111 let max_line_number_length = self
2112 .editor
2113 .read(cx)
2114 .buffer()
2115 .read(cx)
2116 .snapshot(cx)
2117 .widest_line_number()
2118 .ilog10()
2119 + 1;
2120
2121 let elements = buffer_rows
2122 .into_iter()
2123 .enumerate()
2124 .map(|(ix, row_info)| {
2125 let ExpandInfo {
2126 excerpt_id,
2127 direction,
2128 } = row_info.expand_info?;
2129
2130 let icon_name = match direction {
2131 ExpandExcerptDirection::Up => IconName::ExpandUp,
2132 ExpandExcerptDirection::Down => IconName::ExpandDown,
2133 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2134 };
2135
2136 let git_gutter_width = Self::gutter_strip_width(line_height);
2137 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2138
2139 let editor = self.editor.clone();
2140 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2141 && row_info
2142 .buffer_row
2143 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2144 || gutter_dimensions.right_padding == px(0.);
2145
2146 let width = if is_wide {
2147 available_width - px(2.)
2148 } else {
2149 available_width + em_width - px(2.)
2150 };
2151
2152 let toggle = IconButton::new(("expand", ix), icon_name)
2153 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2154 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2155 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2156 .width(width.into())
2157 .on_click(move |_, window, cx| {
2158 editor.update(cx, |editor, cx| {
2159 editor.expand_excerpt(excerpt_id, direction, window, cx);
2160 });
2161 })
2162 .tooltip(Tooltip::for_action_title(
2163 "Expand Excerpt",
2164 &crate::actions::ExpandExcerpts::default(),
2165 ))
2166 .into_any_element();
2167
2168 let position = point(
2169 git_gutter_width + px(1.),
2170 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2171 );
2172 let origin = gutter_hitbox.origin + position;
2173
2174 Some((toggle, origin))
2175 })
2176 .collect();
2177
2178 elements
2179 }
2180
2181 fn layout_code_actions_indicator(
2182 &self,
2183 line_height: Pixels,
2184 newest_selection_head: DisplayPoint,
2185 scroll_pixel_position: gpui::Point<Pixels>,
2186 gutter_dimensions: &GutterDimensions,
2187 gutter_hitbox: &Hitbox,
2188 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2189 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2190 window: &mut Window,
2191 cx: &mut App,
2192 ) -> Option<AnyElement> {
2193 let mut active = false;
2194 let mut button = None;
2195 let row = newest_selection_head.row();
2196 self.editor.update(cx, |editor, cx| {
2197 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2198 deployed_from_indicator,
2199 ..
2200 })) = editor.context_menu.borrow().as_ref()
2201 {
2202 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2203 };
2204
2205 let breakpoint = breakpoint_points.get(&row);
2206 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2207 });
2208
2209 let button = button?;
2210 breakpoint_points.remove(&row);
2211
2212 let button = prepaint_gutter_button(
2213 button,
2214 row,
2215 line_height,
2216 gutter_dimensions,
2217 scroll_pixel_position,
2218 gutter_hitbox,
2219 display_hunks,
2220 window,
2221 cx,
2222 );
2223
2224 Some(button)
2225 }
2226
2227 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2228 if let Some(index) = participant_index {
2229 cx.theme().players().color_for_participant(index.0)
2230 } else {
2231 cx.theme().players().absent()
2232 }
2233 }
2234
2235 fn calculate_relative_line_numbers(
2236 &self,
2237 snapshot: &EditorSnapshot,
2238 rows: &Range<DisplayRow>,
2239 relative_to: Option<DisplayRow>,
2240 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2241 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2242 let Some(relative_to) = relative_to else {
2243 return relative_rows;
2244 };
2245
2246 let start = rows.start.min(relative_to);
2247 let end = rows.end.max(relative_to);
2248
2249 let buffer_rows = snapshot
2250 .row_infos(start)
2251 .take(1 + end.minus(start) as usize)
2252 .collect::<Vec<_>>();
2253
2254 let head_idx = relative_to.minus(start);
2255 let mut delta = 1;
2256 let mut i = head_idx + 1;
2257 while i < buffer_rows.len() as u32 {
2258 if buffer_rows[i as usize].buffer_row.is_some() {
2259 if rows.contains(&DisplayRow(i + start.0)) {
2260 relative_rows.insert(DisplayRow(i + start.0), delta);
2261 }
2262 delta += 1;
2263 }
2264 i += 1;
2265 }
2266 delta = 1;
2267 i = head_idx.min(buffer_rows.len() as u32 - 1);
2268 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2269 i -= 1;
2270 }
2271
2272 while i > 0 {
2273 i -= 1;
2274 if buffer_rows[i as usize].buffer_row.is_some() {
2275 if rows.contains(&DisplayRow(i + start.0)) {
2276 relative_rows.insert(DisplayRow(i + start.0), delta);
2277 }
2278 delta += 1;
2279 }
2280 }
2281
2282 relative_rows
2283 }
2284
2285 fn layout_line_numbers(
2286 &self,
2287 gutter_hitbox: Option<&Hitbox>,
2288 gutter_dimensions: GutterDimensions,
2289 line_height: Pixels,
2290 scroll_position: gpui::Point<f32>,
2291 rows: Range<DisplayRow>,
2292 buffer_rows: &[RowInfo],
2293 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2294 newest_selection_head: Option<DisplayPoint>,
2295 snapshot: &EditorSnapshot,
2296 window: &mut Window,
2297 cx: &mut App,
2298 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2299 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2300 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2301 });
2302 if !include_line_numbers {
2303 return Arc::default();
2304 }
2305
2306 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2307 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2308 let newest = editor.selections.newest::<Point>(cx);
2309 SelectionLayout::new(
2310 newest,
2311 editor.selections.line_mode,
2312 editor.cursor_shape,
2313 &snapshot.display_snapshot,
2314 true,
2315 true,
2316 None,
2317 )
2318 .head
2319 });
2320 let is_relative = editor.should_use_relative_line_numbers(cx);
2321 (newest_selection_head, is_relative)
2322 });
2323
2324 let relative_to = if is_relative {
2325 Some(newest_selection_head.row())
2326 } else {
2327 None
2328 };
2329 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2330 let mut line_number = String::new();
2331 let line_numbers = buffer_rows
2332 .into_iter()
2333 .enumerate()
2334 .flat_map(|(ix, row_info)| {
2335 let display_row = DisplayRow(rows.start.0 + ix as u32);
2336 line_number.clear();
2337 let non_relative_number = row_info.buffer_row? + 1;
2338 let number = relative_rows
2339 .get(&display_row)
2340 .unwrap_or(&non_relative_number);
2341 write!(&mut line_number, "{number}").unwrap();
2342 if row_info
2343 .diff_status
2344 .is_some_and(|status| status.is_deleted())
2345 {
2346 return None;
2347 }
2348
2349 let color = active_rows
2350 .get(&display_row)
2351 .and_then(|spec| {
2352 if spec.breakpoint {
2353 Some(cx.theme().colors().debugger_accent)
2354 } else if spec.selection {
2355 Some(cx.theme().colors().editor_active_line_number)
2356 } else {
2357 None
2358 }
2359 })
2360 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2361 let shaped_line = self
2362 .shape_line_number(SharedString::from(&line_number), color, window)
2363 .log_err()?;
2364 let scroll_top = scroll_position.y * line_height;
2365 let line_origin = gutter_hitbox.map(|hitbox| {
2366 hitbox.origin
2367 + point(
2368 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2369 ix as f32 * line_height - (scroll_top % line_height),
2370 )
2371 });
2372
2373 #[cfg(not(test))]
2374 let hitbox = line_origin.map(|line_origin| {
2375 window.insert_hitbox(
2376 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2377 false,
2378 )
2379 });
2380 #[cfg(test)]
2381 let hitbox = {
2382 let _ = line_origin;
2383 None
2384 };
2385
2386 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2387 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2388 let line_number = LineNumberLayout {
2389 shaped_line,
2390 hitbox,
2391 };
2392 Some((multi_buffer_row, line_number))
2393 })
2394 .collect();
2395 Arc::new(line_numbers)
2396 }
2397
2398 fn layout_crease_toggles(
2399 &self,
2400 rows: Range<DisplayRow>,
2401 row_infos: &[RowInfo],
2402 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2403 snapshot: &EditorSnapshot,
2404 window: &mut Window,
2405 cx: &mut App,
2406 ) -> Vec<Option<AnyElement>> {
2407 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2408 && snapshot.mode == EditorMode::Full
2409 && self.editor.read(cx).is_singleton(cx);
2410 if include_fold_statuses {
2411 row_infos
2412 .into_iter()
2413 .enumerate()
2414 .map(|(ix, info)| {
2415 if info.expand_info.is_some() {
2416 return None;
2417 }
2418 let row = info.multibuffer_row?;
2419 let display_row = DisplayRow(rows.start.0 + ix as u32);
2420 let active = active_rows.contains_key(&display_row);
2421
2422 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2423 })
2424 .collect()
2425 } else {
2426 Vec::new()
2427 }
2428 }
2429
2430 fn layout_crease_trailers(
2431 &self,
2432 buffer_rows: impl IntoIterator<Item = RowInfo>,
2433 snapshot: &EditorSnapshot,
2434 window: &mut Window,
2435 cx: &mut App,
2436 ) -> Vec<Option<AnyElement>> {
2437 buffer_rows
2438 .into_iter()
2439 .map(|row_info| {
2440 if row_info.expand_info.is_some() {
2441 return None;
2442 }
2443 if let Some(row) = row_info.multibuffer_row {
2444 snapshot.render_crease_trailer(row, window, cx)
2445 } else {
2446 None
2447 }
2448 })
2449 .collect()
2450 }
2451
2452 fn layout_lines(
2453 rows: Range<DisplayRow>,
2454 snapshot: &EditorSnapshot,
2455 style: &EditorStyle,
2456 editor_width: Pixels,
2457 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2458 window: &mut Window,
2459 cx: &mut App,
2460 ) -> Vec<LineWithInvisibles> {
2461 if rows.start >= rows.end {
2462 return Vec::new();
2463 }
2464
2465 // Show the placeholder when the editor is empty
2466 if snapshot.is_empty() {
2467 let font_size = style.text.font_size.to_pixels(window.rem_size());
2468 let placeholder_color = cx.theme().colors().text_placeholder;
2469 let placeholder_text = snapshot.placeholder_text();
2470
2471 let placeholder_lines = placeholder_text
2472 .as_ref()
2473 .map_or("", AsRef::as_ref)
2474 .split('\n')
2475 .skip(rows.start.0 as usize)
2476 .chain(iter::repeat(""))
2477 .take(rows.len());
2478 placeholder_lines
2479 .filter_map(move |line| {
2480 let run = TextRun {
2481 len: line.len(),
2482 font: style.text.font(),
2483 color: placeholder_color,
2484 background_color: None,
2485 underline: Default::default(),
2486 strikethrough: None,
2487 };
2488 window
2489 .text_system()
2490 .shape_line(line.to_string().into(), font_size, &[run])
2491 .log_err()
2492 })
2493 .map(|line| LineWithInvisibles {
2494 width: line.width,
2495 len: line.len,
2496 fragments: smallvec![LineFragment::Text(line)],
2497 invisibles: Vec::new(),
2498 font_size,
2499 })
2500 .collect()
2501 } else {
2502 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2503 LineWithInvisibles::from_chunks(
2504 chunks,
2505 &style,
2506 MAX_LINE_LEN,
2507 rows.len(),
2508 snapshot.mode,
2509 editor_width,
2510 is_row_soft_wrapped,
2511 window,
2512 cx,
2513 )
2514 }
2515 }
2516
2517 fn prepaint_lines(
2518 &self,
2519 start_row: DisplayRow,
2520 line_layouts: &mut [LineWithInvisibles],
2521 line_height: Pixels,
2522 scroll_pixel_position: gpui::Point<Pixels>,
2523 content_origin: gpui::Point<Pixels>,
2524 window: &mut Window,
2525 cx: &mut App,
2526 ) -> SmallVec<[AnyElement; 1]> {
2527 let mut line_elements = SmallVec::new();
2528 for (ix, line) in line_layouts.iter_mut().enumerate() {
2529 let row = start_row + DisplayRow(ix as u32);
2530 line.prepaint(
2531 line_height,
2532 scroll_pixel_position,
2533 row,
2534 content_origin,
2535 &mut line_elements,
2536 window,
2537 cx,
2538 );
2539 }
2540 line_elements
2541 }
2542
2543 fn render_block(
2544 &self,
2545 block: &Block,
2546 available_width: AvailableSpace,
2547 block_id: BlockId,
2548 block_row_start: DisplayRow,
2549 snapshot: &EditorSnapshot,
2550 text_x: Pixels,
2551 rows: &Range<DisplayRow>,
2552 line_layouts: &[LineWithInvisibles],
2553 gutter_dimensions: &GutterDimensions,
2554 line_height: Pixels,
2555 em_width: Pixels,
2556 text_hitbox: &Hitbox,
2557 editor_width: Pixels,
2558 scroll_width: &mut Pixels,
2559 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2560 selections: &[Selection<Point>],
2561 selected_buffer_ids: &Vec<BufferId>,
2562 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2563 sticky_header_excerpt_id: Option<ExcerptId>,
2564 window: &mut Window,
2565 cx: &mut App,
2566 ) -> (AnyElement, Size<Pixels>) {
2567 let mut element = match block {
2568 Block::Custom(block) => {
2569 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2570 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2571 let align_to = block_start.to_display_point(snapshot);
2572 let anchor_x = text_x
2573 + if rows.contains(&align_to.row()) {
2574 line_layouts[align_to.row().minus(rows.start) as usize]
2575 .x_for_index(align_to.column() as usize)
2576 } else {
2577 layout_line(
2578 align_to.row(),
2579 snapshot,
2580 &self.style,
2581 editor_width,
2582 is_row_soft_wrapped,
2583 window,
2584 cx,
2585 )
2586 .x_for_index(align_to.column() as usize)
2587 };
2588
2589 let selected = selections
2590 .binary_search_by(|selection| {
2591 if selection.end <= block_start {
2592 Ordering::Less
2593 } else if selection.start >= block_end {
2594 Ordering::Greater
2595 } else {
2596 Ordering::Equal
2597 }
2598 })
2599 .is_ok();
2600
2601 div()
2602 .size_full()
2603 .child(block.render(&mut BlockContext {
2604 window,
2605 app: cx,
2606 anchor_x,
2607 gutter_dimensions,
2608 line_height,
2609 em_width,
2610 block_id,
2611 selected,
2612 max_width: text_hitbox.size.width.max(*scroll_width),
2613 editor_style: &self.style,
2614 }))
2615 .into_any()
2616 }
2617
2618 Block::FoldedBuffer {
2619 first_excerpt,
2620 height,
2621 ..
2622 } => {
2623 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2624 let result = v_flex().id(block_id).w_full();
2625
2626 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2627 result
2628 .child(self.render_buffer_header(
2629 first_excerpt,
2630 true,
2631 selected,
2632 false,
2633 jump_data,
2634 window,
2635 cx,
2636 ))
2637 .into_any_element()
2638 }
2639
2640 Block::ExcerptBoundary {
2641 excerpt,
2642 height,
2643 starts_new_buffer,
2644 ..
2645 } => {
2646 let color = cx.theme().colors().clone();
2647 let mut result = v_flex().id(block_id).w_full();
2648
2649 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2650
2651 if *starts_new_buffer {
2652 if sticky_header_excerpt_id != Some(excerpt.id) {
2653 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2654
2655 result = result.child(self.render_buffer_header(
2656 excerpt, false, selected, false, jump_data, window, cx,
2657 ));
2658 } else {
2659 result =
2660 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2661 }
2662 } else {
2663 result = result.child(
2664 h_flex().relative().child(
2665 div()
2666 .top(line_height / 2.)
2667 .absolute()
2668 .w_full()
2669 .h_px()
2670 .bg(color.border_variant),
2671 ),
2672 );
2673 };
2674
2675 result.into_any()
2676 }
2677 };
2678
2679 // Discover the element's content height, then round up to the nearest multiple of line height.
2680 let preliminary_size = element.layout_as_root(
2681 size(available_width, AvailableSpace::MinContent),
2682 window,
2683 cx,
2684 );
2685 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2686 let final_size = if preliminary_size.height == quantized_height {
2687 preliminary_size
2688 } else {
2689 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2690 };
2691
2692 if let BlockId::Custom(custom_block_id) = block_id {
2693 if block.height() > 0 {
2694 let element_height_in_lines =
2695 ((final_size.height / line_height).ceil() as u32).max(1);
2696 if element_height_in_lines != block.height() {
2697 resized_blocks.insert(custom_block_id, element_height_in_lines);
2698 }
2699 }
2700 }
2701
2702 (element, final_size)
2703 }
2704
2705 fn render_buffer_header(
2706 &self,
2707 for_excerpt: &ExcerptInfo,
2708 is_folded: bool,
2709 is_selected: bool,
2710 is_sticky: bool,
2711 jump_data: JumpData,
2712 window: &mut Window,
2713 cx: &mut App,
2714 ) -> Div {
2715 let editor = self.editor.read(cx);
2716 let file_status = editor
2717 .buffer
2718 .read(cx)
2719 .all_diff_hunks_expanded()
2720 .then(|| {
2721 editor
2722 .project
2723 .as_ref()?
2724 .read(cx)
2725 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2726 })
2727 .flatten();
2728
2729 let include_root = editor
2730 .project
2731 .as_ref()
2732 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2733 .unwrap_or_default();
2734 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2735 let filename = path
2736 .as_ref()
2737 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2738 let parent_path = path.as_ref().and_then(|path| {
2739 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2740 });
2741 let focus_handle = editor.focus_handle(cx);
2742 let colors = cx.theme().colors();
2743
2744 div()
2745 .p_1()
2746 .w_full()
2747 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2748 .child(
2749 h_flex()
2750 .size_full()
2751 .gap_2()
2752 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2753 .pl_0p5()
2754 .pr_5()
2755 .rounded_sm()
2756 .when(is_sticky, |el| el.shadow_md())
2757 .border_1()
2758 .map(|div| {
2759 let border_color = if is_selected
2760 && is_folded
2761 && focus_handle.contains_focused(window, cx)
2762 {
2763 colors.border_focused
2764 } else {
2765 colors.border
2766 };
2767 div.border_color(border_color)
2768 })
2769 .bg(colors.editor_subheader_background)
2770 .hover(|style| style.bg(colors.element_hover))
2771 .map(|header| {
2772 let editor = self.editor.clone();
2773 let buffer_id = for_excerpt.buffer_id;
2774 let toggle_chevron_icon =
2775 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2776 header.child(
2777 div()
2778 .hover(|style| style.bg(colors.element_selected))
2779 .rounded_xs()
2780 .child(
2781 ButtonLike::new("toggle-buffer-fold")
2782 .style(ui::ButtonStyle::Transparent)
2783 .height(px(28.).into())
2784 .width(px(28.).into())
2785 .children(toggle_chevron_icon)
2786 .tooltip({
2787 let focus_handle = focus_handle.clone();
2788 move |window, cx| {
2789 Tooltip::for_action_in(
2790 "Toggle Excerpt Fold",
2791 &ToggleFold,
2792 &focus_handle,
2793 window,
2794 cx,
2795 )
2796 }
2797 })
2798 .on_click(move |_, _, cx| {
2799 if is_folded {
2800 editor.update(cx, |editor, cx| {
2801 editor.unfold_buffer(buffer_id, cx);
2802 });
2803 } else {
2804 editor.update(cx, |editor, cx| {
2805 editor.fold_buffer(buffer_id, cx);
2806 });
2807 }
2808 }),
2809 ),
2810 )
2811 })
2812 .children(
2813 editor
2814 .addons
2815 .values()
2816 .filter_map(|addon| {
2817 addon.render_buffer_header_controls(for_excerpt, window, cx)
2818 })
2819 .take(1),
2820 )
2821 .child(
2822 h_flex()
2823 .cursor_pointer()
2824 .id("path header block")
2825 .size_full()
2826 .justify_between()
2827 .child(
2828 h_flex()
2829 .gap_2()
2830 .child(
2831 Label::new(
2832 filename
2833 .map(SharedString::from)
2834 .unwrap_or_else(|| "untitled".into()),
2835 )
2836 .single_line()
2837 .when_some(
2838 file_status,
2839 |el, status| {
2840 el.color(if status.is_conflicted() {
2841 Color::Conflict
2842 } else if status.is_modified() {
2843 Color::Modified
2844 } else if status.is_deleted() {
2845 Color::Disabled
2846 } else {
2847 Color::Created
2848 })
2849 .when(status.is_deleted(), |el| el.strikethrough())
2850 },
2851 ),
2852 )
2853 .when_some(parent_path, |then, path| {
2854 then.child(div().child(path).text_color(
2855 if file_status.is_some_and(FileStatus::is_deleted) {
2856 colors.text_disabled
2857 } else {
2858 colors.text_muted
2859 },
2860 ))
2861 }),
2862 )
2863 .when(is_selected, |el| {
2864 el.child(
2865 h_flex()
2866 .id("jump-to-file-button")
2867 .gap_2p5()
2868 .child(Label::new("Jump To File"))
2869 .children(
2870 KeyBinding::for_action_in(
2871 &OpenExcerpts,
2872 &focus_handle,
2873 window,
2874 cx,
2875 )
2876 .map(|binding| binding.into_any_element()),
2877 ),
2878 )
2879 })
2880 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2881 .on_click(window.listener_for(&self.editor, {
2882 move |editor, e: &ClickEvent, window, cx| {
2883 editor.open_excerpts_common(
2884 Some(jump_data.clone()),
2885 e.down.modifiers.secondary(),
2886 window,
2887 cx,
2888 );
2889 }
2890 })),
2891 ),
2892 )
2893 }
2894
2895 fn render_blocks(
2896 &self,
2897 rows: Range<DisplayRow>,
2898 snapshot: &EditorSnapshot,
2899 hitbox: &Hitbox,
2900 text_hitbox: &Hitbox,
2901 editor_width: Pixels,
2902 scroll_width: &mut Pixels,
2903 gutter_dimensions: &GutterDimensions,
2904 em_width: Pixels,
2905 text_x: Pixels,
2906 line_height: Pixels,
2907 line_layouts: &[LineWithInvisibles],
2908 selections: &[Selection<Point>],
2909 selected_buffer_ids: &Vec<BufferId>,
2910 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2911 sticky_header_excerpt_id: Option<ExcerptId>,
2912 window: &mut Window,
2913 cx: &mut App,
2914 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2915 let (fixed_blocks, non_fixed_blocks) = snapshot
2916 .blocks_in_range(rows.clone())
2917 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2918
2919 let mut focused_block = self
2920 .editor
2921 .update(cx, |editor, _| editor.take_focused_block());
2922 let mut fixed_block_max_width = Pixels::ZERO;
2923 let mut blocks = Vec::new();
2924 let mut resized_blocks = HashMap::default();
2925
2926 for (row, block) in fixed_blocks {
2927 let block_id = block.id();
2928
2929 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2930 focused_block = None;
2931 }
2932
2933 let (element, element_size) = self.render_block(
2934 block,
2935 AvailableSpace::MinContent,
2936 block_id,
2937 row,
2938 snapshot,
2939 text_x,
2940 &rows,
2941 line_layouts,
2942 gutter_dimensions,
2943 line_height,
2944 em_width,
2945 text_hitbox,
2946 editor_width,
2947 scroll_width,
2948 &mut resized_blocks,
2949 selections,
2950 selected_buffer_ids,
2951 is_row_soft_wrapped,
2952 sticky_header_excerpt_id,
2953 window,
2954 cx,
2955 );
2956 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2957 blocks.push(BlockLayout {
2958 id: block_id,
2959 row: Some(row),
2960 element,
2961 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2962 style: BlockStyle::Fixed,
2963 is_buffer_header: block.is_buffer_header(),
2964 });
2965 }
2966
2967 for (row, block) in non_fixed_blocks {
2968 let style = block.style();
2969 let width = match style {
2970 BlockStyle::Sticky => hitbox.size.width,
2971 BlockStyle::Flex => hitbox
2972 .size
2973 .width
2974 .max(fixed_block_max_width)
2975 .max(gutter_dimensions.width + *scroll_width),
2976 BlockStyle::Fixed => unreachable!(),
2977 };
2978 let block_id = block.id();
2979
2980 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2981 focused_block = None;
2982 }
2983
2984 let (element, element_size) = self.render_block(
2985 block,
2986 width.into(),
2987 block_id,
2988 row,
2989 snapshot,
2990 text_x,
2991 &rows,
2992 line_layouts,
2993 gutter_dimensions,
2994 line_height,
2995 em_width,
2996 text_hitbox,
2997 editor_width,
2998 scroll_width,
2999 &mut resized_blocks,
3000 selections,
3001 selected_buffer_ids,
3002 is_row_soft_wrapped,
3003 sticky_header_excerpt_id,
3004 window,
3005 cx,
3006 );
3007
3008 blocks.push(BlockLayout {
3009 id: block_id,
3010 row: Some(row),
3011 element,
3012 available_space: size(width.into(), element_size.height.into()),
3013 style,
3014 is_buffer_header: block.is_buffer_header(),
3015 });
3016 }
3017
3018 if let Some(focused_block) = focused_block {
3019 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3020 if focus_handle.is_focused(window) {
3021 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3022 let style = block.style();
3023 let width = match style {
3024 BlockStyle::Fixed => AvailableSpace::MinContent,
3025 BlockStyle::Flex => AvailableSpace::Definite(
3026 hitbox
3027 .size
3028 .width
3029 .max(fixed_block_max_width)
3030 .max(gutter_dimensions.width + *scroll_width),
3031 ),
3032 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3033 };
3034
3035 let (element, element_size) = self.render_block(
3036 &block,
3037 width,
3038 focused_block.id,
3039 rows.end,
3040 snapshot,
3041 text_x,
3042 &rows,
3043 line_layouts,
3044 gutter_dimensions,
3045 line_height,
3046 em_width,
3047 text_hitbox,
3048 editor_width,
3049 scroll_width,
3050 &mut resized_blocks,
3051 selections,
3052 selected_buffer_ids,
3053 is_row_soft_wrapped,
3054 sticky_header_excerpt_id,
3055 window,
3056 cx,
3057 );
3058
3059 blocks.push(BlockLayout {
3060 id: block.id(),
3061 row: None,
3062 element,
3063 available_space: size(width, element_size.height.into()),
3064 style,
3065 is_buffer_header: block.is_buffer_header(),
3066 });
3067 }
3068 }
3069 }
3070 }
3071
3072 if resized_blocks.is_empty() {
3073 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3074 Ok(blocks)
3075 } else {
3076 Err(resized_blocks)
3077 }
3078 }
3079
3080 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3081 /// a restart of rendering for the editor based on the new sizes.
3082 fn layout_blocks(
3083 &self,
3084 blocks: &mut Vec<BlockLayout>,
3085 block_starts: &mut HashSet<DisplayRow>,
3086 hitbox: &Hitbox,
3087 line_height: Pixels,
3088 scroll_pixel_position: gpui::Point<Pixels>,
3089 window: &mut Window,
3090 cx: &mut App,
3091 ) {
3092 for block in blocks {
3093 let mut origin = if let Some(row) = block.row {
3094 block_starts.insert(row);
3095 hitbox.origin
3096 + point(
3097 Pixels::ZERO,
3098 row.as_f32() * line_height - scroll_pixel_position.y,
3099 )
3100 } else {
3101 // Position the block outside the visible area
3102 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3103 };
3104
3105 if !matches!(block.style, BlockStyle::Sticky) {
3106 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3107 }
3108
3109 let focus_handle =
3110 block
3111 .element
3112 .prepaint_as_root(origin, block.available_space, window, cx);
3113
3114 if let Some(focus_handle) = focus_handle {
3115 self.editor.update(cx, |editor, _cx| {
3116 editor.set_focused_block(FocusedBlock {
3117 id: block.id,
3118 focus_handle: focus_handle.downgrade(),
3119 });
3120 });
3121 }
3122 }
3123 }
3124
3125 fn layout_sticky_buffer_header(
3126 &self,
3127 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3128 scroll_position: f32,
3129 line_height: Pixels,
3130 snapshot: &EditorSnapshot,
3131 hitbox: &Hitbox,
3132 selected_buffer_ids: &Vec<BufferId>,
3133 blocks: &[BlockLayout],
3134 window: &mut Window,
3135 cx: &mut App,
3136 ) -> AnyElement {
3137 let jump_data = header_jump_data(
3138 snapshot,
3139 DisplayRow(scroll_position as u32),
3140 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3141 excerpt,
3142 );
3143
3144 let editor_bg_color = cx.theme().colors().editor_background;
3145
3146 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3147
3148 let mut header = v_flex()
3149 .relative()
3150 .child(
3151 div()
3152 .w(hitbox.bounds.size.width)
3153 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3154 .bg(linear_gradient(
3155 0.,
3156 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3157 linear_color_stop(editor_bg_color, 0.6),
3158 ))
3159 .absolute()
3160 .top_0(),
3161 )
3162 .child(
3163 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3164 .into_any_element(),
3165 )
3166 .into_any_element();
3167
3168 let mut origin = hitbox.origin;
3169 // Move floating header up to avoid colliding with the next buffer header.
3170 for block in blocks.iter() {
3171 if !block.is_buffer_header {
3172 continue;
3173 }
3174
3175 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3176 continue;
3177 };
3178
3179 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3180 let offset = scroll_position - max_row as f32;
3181
3182 if offset > 0.0 {
3183 origin.y -= offset * line_height;
3184 }
3185 break;
3186 }
3187
3188 let size = size(
3189 AvailableSpace::Definite(hitbox.size.width),
3190 AvailableSpace::MinContent,
3191 );
3192
3193 header.prepaint_as_root(origin, size, window, cx);
3194
3195 header
3196 }
3197
3198 fn layout_cursor_popovers(
3199 &self,
3200 line_height: Pixels,
3201 text_hitbox: &Hitbox,
3202 content_origin: gpui::Point<Pixels>,
3203 start_row: DisplayRow,
3204 scroll_pixel_position: gpui::Point<Pixels>,
3205 line_layouts: &[LineWithInvisibles],
3206 cursor: DisplayPoint,
3207 cursor_point: Point,
3208 style: &EditorStyle,
3209 window: &mut Window,
3210 cx: &mut App,
3211 ) {
3212 let mut min_menu_height = Pixels::ZERO;
3213 let mut max_menu_height = Pixels::ZERO;
3214 let mut height_above_menu = Pixels::ZERO;
3215 let height_below_menu = Pixels::ZERO;
3216 let mut edit_prediction_popover_visible = false;
3217 let mut context_menu_visible = false;
3218 let context_menu_placement;
3219
3220 {
3221 let editor = self.editor.read(cx);
3222 if editor
3223 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3224 {
3225 height_above_menu +=
3226 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3227 edit_prediction_popover_visible = true;
3228 }
3229
3230 if editor.context_menu_visible() {
3231 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3232 let (min_height_in_lines, max_height_in_lines) = editor
3233 .context_menu_options
3234 .as_ref()
3235 .map_or((3, 12), |options| {
3236 (options.min_entries_visible, options.max_entries_visible)
3237 });
3238
3239 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3240 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3241 context_menu_visible = true;
3242 }
3243 }
3244 context_menu_placement = editor
3245 .context_menu_options
3246 .as_ref()
3247 .and_then(|options| options.placement.clone());
3248 }
3249
3250 let visible = edit_prediction_popover_visible || context_menu_visible;
3251 if !visible {
3252 return;
3253 }
3254
3255 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3256 let target_position = content_origin
3257 + gpui::Point {
3258 x: cmp::max(
3259 px(0.),
3260 cursor_row_layout.x_for_index(cursor.column() as usize)
3261 - scroll_pixel_position.x,
3262 ),
3263 y: cmp::max(
3264 px(0.),
3265 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3266 ),
3267 };
3268
3269 let viewport_bounds =
3270 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3271 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3272 ..Default::default()
3273 });
3274
3275 let min_height = height_above_menu + min_menu_height + height_below_menu;
3276 let max_height = height_above_menu + max_menu_height + height_below_menu;
3277 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3278 target_position,
3279 line_height,
3280 min_height,
3281 max_height,
3282 context_menu_placement,
3283 text_hitbox,
3284 viewport_bounds,
3285 window,
3286 cx,
3287 |height, max_width_for_stable_x, y_flipped, window, cx| {
3288 // First layout the menu to get its size - others can be at least this wide.
3289 let context_menu = if context_menu_visible {
3290 let menu_height = if y_flipped {
3291 height - height_below_menu
3292 } else {
3293 height - height_above_menu
3294 };
3295 let mut element = self
3296 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3297 .expect("Visible context menu should always render.");
3298 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3299 Some((CursorPopoverType::CodeContextMenu, element, size))
3300 } else {
3301 None
3302 };
3303 let min_width = context_menu
3304 .as_ref()
3305 .map_or(px(0.), |(_, _, size)| size.width);
3306 let max_width = max_width_for_stable_x.max(
3307 context_menu
3308 .as_ref()
3309 .map_or(px(0.), |(_, _, size)| size.width),
3310 );
3311
3312 let edit_prediction = if edit_prediction_popover_visible {
3313 self.editor.update(cx, move |editor, cx| {
3314 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3315 let mut element = editor.render_edit_prediction_cursor_popover(
3316 min_width,
3317 max_width,
3318 cursor_point,
3319 style,
3320 accept_binding.keystroke(),
3321 window,
3322 cx,
3323 )?;
3324 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3325 Some((CursorPopoverType::EditPrediction, element, size))
3326 })
3327 } else {
3328 None
3329 };
3330 vec![edit_prediction, context_menu]
3331 .into_iter()
3332 .flatten()
3333 .collect::<Vec<_>>()
3334 },
3335 ) else {
3336 return;
3337 };
3338
3339 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3340 .iter()
3341 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3342 else {
3343 return;
3344 };
3345 let last_ix = laid_out_popovers.len() - 1;
3346 let menu_is_last = menu_ix == last_ix;
3347 let first_popover_bounds = laid_out_popovers[0].1;
3348 let last_popover_bounds = laid_out_popovers[last_ix].1;
3349
3350 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3351 // right, and otherwise it goes below or to the right.
3352 let mut target_bounds = Bounds::from_corners(
3353 first_popover_bounds.origin,
3354 last_popover_bounds.bottom_right(),
3355 );
3356 target_bounds.size.width = menu_bounds.size.width;
3357
3358 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3359 // based on this is preferred for layout stability.
3360 let mut max_target_bounds = target_bounds;
3361 max_target_bounds.size.height = max_height;
3362 if y_flipped {
3363 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3364 }
3365
3366 // Add spacing around `target_bounds` and `max_target_bounds`.
3367 let mut extend_amount = Edges::all(MENU_GAP);
3368 if y_flipped {
3369 extend_amount.bottom = line_height;
3370 } else {
3371 extend_amount.top = line_height;
3372 }
3373 let target_bounds = target_bounds.extend(extend_amount);
3374 let max_target_bounds = max_target_bounds.extend(extend_amount);
3375
3376 let must_place_above_or_below =
3377 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3378 laid_out_popovers[menu_ix + 1..]
3379 .iter()
3380 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3381 } else {
3382 false
3383 };
3384
3385 self.layout_context_menu_aside(
3386 y_flipped,
3387 *menu_bounds,
3388 target_bounds,
3389 max_target_bounds,
3390 max_menu_height,
3391 must_place_above_or_below,
3392 text_hitbox,
3393 viewport_bounds,
3394 window,
3395 cx,
3396 );
3397 }
3398
3399 fn layout_gutter_menu(
3400 &self,
3401 line_height: Pixels,
3402 text_hitbox: &Hitbox,
3403 content_origin: gpui::Point<Pixels>,
3404 scroll_pixel_position: gpui::Point<Pixels>,
3405 gutter_overshoot: Pixels,
3406 window: &mut Window,
3407 cx: &mut App,
3408 ) {
3409 let editor = self.editor.read(cx);
3410 if !editor.context_menu_visible() {
3411 return;
3412 }
3413 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3414 editor.context_menu_origin()
3415 else {
3416 return;
3417 };
3418 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3419 // indicator than just a plain first column of the text field.
3420 let target_position = content_origin
3421 + gpui::Point {
3422 x: -gutter_overshoot,
3423 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3424 };
3425
3426 let (min_height_in_lines, max_height_in_lines) = editor
3427 .context_menu_options
3428 .as_ref()
3429 .map_or((3, 12), |options| {
3430 (options.min_entries_visible, options.max_entries_visible)
3431 });
3432
3433 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3434 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3435 let viewport_bounds =
3436 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3437 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3438 ..Default::default()
3439 });
3440 self.layout_popovers_above_or_below_line(
3441 target_position,
3442 line_height,
3443 min_height,
3444 max_height,
3445 editor
3446 .context_menu_options
3447 .as_ref()
3448 .and_then(|options| options.placement.clone()),
3449 text_hitbox,
3450 viewport_bounds,
3451 window,
3452 cx,
3453 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3454 let mut element = self
3455 .render_context_menu(line_height, height, y_flipped, window, cx)
3456 .expect("Visible context menu should always render.");
3457 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3458 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3459 },
3460 );
3461 }
3462
3463 fn layout_popovers_above_or_below_line(
3464 &self,
3465 target_position: gpui::Point<Pixels>,
3466 line_height: Pixels,
3467 min_height: Pixels,
3468 max_height: Pixels,
3469 placement: Option<ContextMenuPlacement>,
3470 text_hitbox: &Hitbox,
3471 viewport_bounds: Bounds<Pixels>,
3472 window: &mut Window,
3473 cx: &mut App,
3474 make_sized_popovers: impl FnOnce(
3475 Pixels,
3476 Pixels,
3477 bool,
3478 &mut Window,
3479 &mut App,
3480 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3481 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3482 let text_style = TextStyleRefinement {
3483 line_height: Some(DefiniteLength::Fraction(
3484 BufferLineHeight::Comfortable.value(),
3485 )),
3486 ..Default::default()
3487 };
3488 window.with_text_style(Some(text_style), |window| {
3489 // If the max height won't fit below and there is more space above, put it above the line.
3490 let bottom_y_when_flipped = target_position.y - line_height;
3491 let available_above = bottom_y_when_flipped - text_hitbox.top();
3492 let available_below = text_hitbox.bottom() - target_position.y;
3493 let y_overflows_below = max_height > available_below;
3494 let mut y_flipped = match placement {
3495 Some(ContextMenuPlacement::Above) => true,
3496 Some(ContextMenuPlacement::Below) => false,
3497 None => y_overflows_below && available_above > available_below,
3498 };
3499 let mut height = cmp::min(
3500 max_height,
3501 if y_flipped {
3502 available_above
3503 } else {
3504 available_below
3505 },
3506 );
3507
3508 // If the min height doesn't fit within text bounds, instead fit within the window.
3509 if height < min_height {
3510 let available_above = bottom_y_when_flipped;
3511 let available_below = viewport_bounds.bottom() - target_position.y;
3512 let (y_flipped_override, height_override) = match placement {
3513 Some(ContextMenuPlacement::Above) => {
3514 (true, cmp::min(available_above, min_height))
3515 }
3516 Some(ContextMenuPlacement::Below) => {
3517 (false, cmp::min(available_below, min_height))
3518 }
3519 None => {
3520 if available_below > min_height {
3521 (false, min_height)
3522 } else if available_above > min_height {
3523 (true, min_height)
3524 } else if available_above > available_below {
3525 (true, available_above)
3526 } else {
3527 (false, available_below)
3528 }
3529 }
3530 };
3531 y_flipped = y_flipped_override;
3532 height = height_override;
3533 }
3534
3535 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3536
3537 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3538 // for very narrow windows.
3539 let popovers =
3540 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3541 if popovers.is_empty() {
3542 return None;
3543 }
3544
3545 let max_width = popovers
3546 .iter()
3547 .map(|(_, _, size)| size.width)
3548 .max()
3549 .unwrap_or_default();
3550
3551 let mut current_position = gpui::Point {
3552 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3553 // overflow. Include space for the scrollbar.
3554 x: target_position
3555 .x
3556 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3557 y: if y_flipped {
3558 bottom_y_when_flipped
3559 } else {
3560 target_position.y
3561 },
3562 };
3563
3564 let mut laid_out_popovers = popovers
3565 .into_iter()
3566 .map(|(popover_type, element, size)| {
3567 if y_flipped {
3568 current_position.y -= size.height;
3569 }
3570 let position = current_position;
3571 window.defer_draw(element, current_position, 1);
3572 if !y_flipped {
3573 current_position.y += size.height + MENU_GAP;
3574 } else {
3575 current_position.y -= MENU_GAP;
3576 }
3577 (popover_type, Bounds::new(position, size))
3578 })
3579 .collect::<Vec<_>>();
3580
3581 if y_flipped {
3582 laid_out_popovers.reverse();
3583 }
3584
3585 Some((laid_out_popovers, y_flipped))
3586 })
3587 }
3588
3589 fn layout_context_menu_aside(
3590 &self,
3591 y_flipped: bool,
3592 menu_bounds: Bounds<Pixels>,
3593 target_bounds: Bounds<Pixels>,
3594 max_target_bounds: Bounds<Pixels>,
3595 max_height: Pixels,
3596 must_place_above_or_below: bool,
3597 text_hitbox: &Hitbox,
3598 viewport_bounds: Bounds<Pixels>,
3599 window: &mut Window,
3600 cx: &mut App,
3601 ) {
3602 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3603 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3604 && !must_place_above_or_below
3605 {
3606 let max_width = cmp::min(
3607 available_within_viewport.right - px(1.),
3608 MENU_ASIDE_MAX_WIDTH,
3609 );
3610 let Some(mut aside) = self.render_context_menu_aside(
3611 size(max_width, max_height - POPOVER_Y_PADDING),
3612 window,
3613 cx,
3614 ) else {
3615 return;
3616 };
3617 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3618 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3619 Some((aside, right_position))
3620 } else {
3621 let max_size = size(
3622 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3623 // won't be needed here.
3624 cmp::min(
3625 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3626 viewport_bounds.right(),
3627 ),
3628 cmp::min(
3629 max_height,
3630 cmp::max(
3631 available_within_viewport.top,
3632 available_within_viewport.bottom,
3633 ),
3634 ) - POPOVER_Y_PADDING,
3635 );
3636 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3637 return;
3638 };
3639 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3640
3641 let top_position = point(
3642 menu_bounds.origin.x,
3643 target_bounds.top() - actual_size.height,
3644 );
3645 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3646
3647 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3648 // Prefer to fit on the same side of the line as the menu, then on the other side of
3649 // the line.
3650 if !y_flipped && wanted.height < available.bottom {
3651 Some(bottom_position)
3652 } else if !y_flipped && wanted.height < available.top {
3653 Some(top_position)
3654 } else if y_flipped && wanted.height < available.top {
3655 Some(top_position)
3656 } else if y_flipped && wanted.height < available.bottom {
3657 Some(bottom_position)
3658 } else {
3659 None
3660 }
3661 };
3662
3663 // Prefer choosing a direction using max sizes rather than actual size for stability.
3664 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3665 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3666 let aside_position = fit_within(available_within_text, wanted)
3667 // Fallback: fit max size in window.
3668 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3669 // Fallback: fit actual size in window.
3670 .or_else(|| fit_within(available_within_viewport, actual_size));
3671
3672 aside_position.map(|position| (aside, position))
3673 };
3674
3675 // Skip drawing if it doesn't fit anywhere.
3676 if let Some((aside, position)) = positioned_aside {
3677 window.defer_draw(aside, position, 2);
3678 }
3679 }
3680
3681 fn render_context_menu(
3682 &self,
3683 line_height: Pixels,
3684 height: Pixels,
3685 y_flipped: bool,
3686 window: &mut Window,
3687 cx: &mut App,
3688 ) -> Option<AnyElement> {
3689 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3690 self.editor.update(cx, |editor, cx| {
3691 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3692 })
3693 }
3694
3695 fn render_context_menu_aside(
3696 &self,
3697 max_size: Size<Pixels>,
3698 window: &mut Window,
3699 cx: &mut App,
3700 ) -> Option<AnyElement> {
3701 if max_size.width < px(100.) || max_size.height < px(12.) {
3702 None
3703 } else {
3704 self.editor.update(cx, |editor, cx| {
3705 editor.render_context_menu_aside(max_size, window, cx)
3706 })
3707 }
3708 }
3709
3710 fn layout_mouse_context_menu(
3711 &self,
3712 editor_snapshot: &EditorSnapshot,
3713 visible_range: Range<DisplayRow>,
3714 content_origin: gpui::Point<Pixels>,
3715 window: &mut Window,
3716 cx: &mut App,
3717 ) -> Option<AnyElement> {
3718 let position = self.editor.update(cx, |editor, _cx| {
3719 let visible_start_point = editor.display_to_pixel_point(
3720 DisplayPoint::new(visible_range.start, 0),
3721 editor_snapshot,
3722 window,
3723 )?;
3724 let visible_end_point = editor.display_to_pixel_point(
3725 DisplayPoint::new(visible_range.end, 0),
3726 editor_snapshot,
3727 window,
3728 )?;
3729
3730 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3731 let (source_display_point, position) = match mouse_context_menu.position {
3732 MenuPosition::PinnedToScreen(point) => (None, point),
3733 MenuPosition::PinnedToEditor { source, offset } => {
3734 let source_display_point = source.to_display_point(editor_snapshot);
3735 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3736 let position = content_origin + source_point + offset;
3737 (Some(source_display_point), position)
3738 }
3739 };
3740
3741 let source_included = source_display_point.map_or(true, |source_display_point| {
3742 visible_range
3743 .to_inclusive()
3744 .contains(&source_display_point.row())
3745 });
3746 let position_included =
3747 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3748 if !source_included && !position_included {
3749 None
3750 } else {
3751 Some(position)
3752 }
3753 })?;
3754
3755 let text_style = TextStyleRefinement {
3756 line_height: Some(DefiniteLength::Fraction(
3757 BufferLineHeight::Comfortable.value(),
3758 )),
3759 ..Default::default()
3760 };
3761 window.with_text_style(Some(text_style), |window| {
3762 let mut element = self.editor.update(cx, |editor, _| {
3763 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3764 let context_menu = mouse_context_menu.context_menu.clone();
3765
3766 Some(
3767 deferred(
3768 anchored()
3769 .position(position)
3770 .child(context_menu)
3771 .anchor(Corner::TopLeft)
3772 .snap_to_window_with_margin(px(8.)),
3773 )
3774 .with_priority(1)
3775 .into_any(),
3776 )
3777 })?;
3778
3779 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3780 Some(element)
3781 })
3782 }
3783
3784 fn layout_hover_popovers(
3785 &self,
3786 snapshot: &EditorSnapshot,
3787 hitbox: &Hitbox,
3788 text_hitbox: &Hitbox,
3789 visible_display_row_range: Range<DisplayRow>,
3790 content_origin: gpui::Point<Pixels>,
3791 scroll_pixel_position: gpui::Point<Pixels>,
3792 line_layouts: &[LineWithInvisibles],
3793 line_height: Pixels,
3794 em_width: Pixels,
3795 window: &mut Window,
3796 cx: &mut App,
3797 ) {
3798 struct MeasuredHoverPopover {
3799 element: AnyElement,
3800 size: Size<Pixels>,
3801 horizontal_offset: Pixels,
3802 }
3803
3804 let max_size = size(
3805 (120. * em_width) // Default size
3806 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3807 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3808 (16. * line_height) // Default size
3809 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3810 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3811 );
3812
3813 let hover_popovers = self.editor.update(cx, |editor, cx| {
3814 editor
3815 .hover_state
3816 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3817 });
3818 let Some((position, hover_popovers)) = hover_popovers else {
3819 return;
3820 };
3821
3822 // This is safe because we check on layout whether the required row is available
3823 let hovered_row_layout =
3824 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3825
3826 // Compute Hovered Point
3827 let x =
3828 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3829 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3830 let hovered_point = content_origin + point(x, y);
3831
3832 let mut overall_height = Pixels::ZERO;
3833 let mut measured_hover_popovers = Vec::new();
3834 for mut hover_popover in hover_popovers {
3835 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3836 let horizontal_offset =
3837 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3838
3839 overall_height += HOVER_POPOVER_GAP + size.height;
3840
3841 measured_hover_popovers.push(MeasuredHoverPopover {
3842 element: hover_popover,
3843 size,
3844 horizontal_offset,
3845 });
3846 }
3847 overall_height += HOVER_POPOVER_GAP;
3848
3849 fn draw_occluder(
3850 width: Pixels,
3851 origin: gpui::Point<Pixels>,
3852 window: &mut Window,
3853 cx: &mut App,
3854 ) {
3855 let mut occlusion = div()
3856 .size_full()
3857 .occlude()
3858 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3859 .into_any_element();
3860 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3861 window.defer_draw(occlusion, origin, 2);
3862 }
3863
3864 if hovered_point.y > overall_height {
3865 // There is enough space above. Render popovers above the hovered point
3866 let mut current_y = hovered_point.y;
3867 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3868 let size = popover.size;
3869 let popover_origin = point(
3870 hovered_point.x + popover.horizontal_offset,
3871 current_y - size.height,
3872 );
3873
3874 window.defer_draw(popover.element, popover_origin, 2);
3875 if position != itertools::Position::Last {
3876 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3877 draw_occluder(size.width, origin, window, cx);
3878 }
3879
3880 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3881 }
3882 } else {
3883 // There is not enough space above. Render popovers below the hovered point
3884 let mut current_y = hovered_point.y + line_height;
3885 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3886 let size = popover.size;
3887 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3888
3889 window.defer_draw(popover.element, popover_origin, 2);
3890 if position != itertools::Position::Last {
3891 let origin = point(popover_origin.x, popover_origin.y + size.height);
3892 draw_occluder(size.width, origin, window, cx);
3893 }
3894
3895 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3896 }
3897 }
3898 }
3899
3900 fn layout_diff_hunk_controls(
3901 &self,
3902 row_range: Range<DisplayRow>,
3903 row_infos: &[RowInfo],
3904 text_hitbox: &Hitbox,
3905 position_map: &PositionMap,
3906 newest_cursor_position: Option<DisplayPoint>,
3907 line_height: Pixels,
3908 scroll_pixel_position: gpui::Point<Pixels>,
3909 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3910 editor: Entity<Editor>,
3911 window: &mut Window,
3912 cx: &mut App,
3913 ) -> Vec<AnyElement> {
3914 let point_for_position = position_map.point_for_position(window.mouse_position());
3915
3916 let mut controls = vec![];
3917
3918 let active_positions = [
3919 Some(point_for_position.previous_valid),
3920 newest_cursor_position,
3921 ];
3922
3923 for (hunk, _) in display_hunks {
3924 if let DisplayDiffHunk::Unfolded {
3925 display_row_range,
3926 multi_buffer_range,
3927 status,
3928 is_created_file,
3929 ..
3930 } = &hunk
3931 {
3932 if display_row_range.start < row_range.start
3933 || display_row_range.start >= row_range.end
3934 {
3935 continue;
3936 }
3937 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3938 if row_infos[row_ix].diff_status.is_none() {
3939 continue;
3940 }
3941 if row_infos[row_ix]
3942 .diff_status
3943 .is_some_and(|status| status.is_added())
3944 && !status.is_added()
3945 {
3946 continue;
3947 }
3948 if active_positions
3949 .iter()
3950 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3951 {
3952 let y = display_row_range.start.as_f32() * line_height
3953 + text_hitbox.bounds.top()
3954 - scroll_pixel_position.y;
3955
3956 let mut element = diff_hunk_controls(
3957 display_row_range.start.0,
3958 status,
3959 multi_buffer_range.clone(),
3960 *is_created_file,
3961 line_height,
3962 &editor,
3963 cx,
3964 );
3965 let size =
3966 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3967
3968 let x = text_hitbox.bounds.right()
3969 - self.style.scrollbar_width
3970 - px(10.)
3971 - size.width;
3972
3973 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3974 element.prepaint(window, cx)
3975 });
3976 controls.push(element);
3977 }
3978 }
3979 }
3980
3981 controls
3982 }
3983
3984 fn layout_signature_help(
3985 &self,
3986 hitbox: &Hitbox,
3987 content_origin: gpui::Point<Pixels>,
3988 scroll_pixel_position: gpui::Point<Pixels>,
3989 newest_selection_head: Option<DisplayPoint>,
3990 start_row: DisplayRow,
3991 line_layouts: &[LineWithInvisibles],
3992 line_height: Pixels,
3993 em_width: Pixels,
3994 window: &mut Window,
3995 cx: &mut App,
3996 ) {
3997 if !self.editor.focus_handle(cx).is_focused(window) {
3998 return;
3999 }
4000 let Some(newest_selection_head) = newest_selection_head else {
4001 return;
4002 };
4003 let selection_row = newest_selection_head.row();
4004 if selection_row < start_row {
4005 return;
4006 }
4007 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4008 else {
4009 return;
4010 };
4011
4012 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4013 - scroll_pixel_position.x
4014 + content_origin.x;
4015 let start_y =
4016 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4017
4018 let max_size = size(
4019 (120. * em_width) // Default size
4020 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4021 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4022 (16. * line_height) // Default size
4023 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4024 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4025 );
4026
4027 let maybe_element = self.editor.update(cx, |editor, cx| {
4028 if let Some(popover) = editor.signature_help_state.popover_mut() {
4029 let element = popover.render(max_size, cx);
4030 Some(element)
4031 } else {
4032 None
4033 }
4034 });
4035 if let Some(mut element) = maybe_element {
4036 let window_size = window.viewport_size();
4037 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4038 let mut point = point(start_x, start_y - size.height);
4039
4040 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4041 if point.x + size.width >= window_size.width {
4042 point.x = window_size.width - size.width;
4043 }
4044
4045 window.defer_draw(element, point, 1)
4046 }
4047 }
4048
4049 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4050 window.paint_layer(layout.hitbox.bounds, |window| {
4051 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4052 let gutter_bg = cx.theme().colors().editor_gutter_background;
4053 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4054 window.paint_quad(fill(
4055 layout.position_map.text_hitbox.bounds,
4056 self.style.background,
4057 ));
4058
4059 if let EditorMode::Full = layout.mode {
4060 let mut active_rows = layout.active_rows.iter().peekable();
4061 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4062 let mut end_row = start_row.0;
4063 while active_rows
4064 .peek()
4065 .map_or(false, |(active_row, has_selection)| {
4066 active_row.0 == end_row + 1
4067 && has_selection.selection == contains_non_empty_selection.selection
4068 })
4069 {
4070 active_rows.next().unwrap();
4071 end_row += 1;
4072 }
4073
4074 if !contains_non_empty_selection.selection {
4075 let highlight_h_range =
4076 match layout.position_map.snapshot.current_line_highlight {
4077 CurrentLineHighlight::Gutter => Some(Range {
4078 start: layout.hitbox.left(),
4079 end: layout.gutter_hitbox.right(),
4080 }),
4081 CurrentLineHighlight::Line => Some(Range {
4082 start: layout.position_map.text_hitbox.bounds.left(),
4083 end: layout.position_map.text_hitbox.bounds.right(),
4084 }),
4085 CurrentLineHighlight::All => Some(Range {
4086 start: layout.hitbox.left(),
4087 end: layout.hitbox.right(),
4088 }),
4089 CurrentLineHighlight::None => None,
4090 };
4091 if let Some(range) = highlight_h_range {
4092 let active_line_bg = cx.theme().colors().editor_active_line_background;
4093 let bounds = Bounds {
4094 origin: point(
4095 range.start,
4096 layout.hitbox.origin.y
4097 + (start_row.as_f32() - scroll_top)
4098 * layout.position_map.line_height,
4099 ),
4100 size: size(
4101 range.end - range.start,
4102 layout.position_map.line_height
4103 * (end_row - start_row.0 + 1) as f32,
4104 ),
4105 };
4106 window.paint_quad(fill(bounds, active_line_bg));
4107 }
4108 }
4109 }
4110
4111 let mut paint_highlight = |highlight_row_start: DisplayRow,
4112 highlight_row_end: DisplayRow,
4113 highlight: crate::LineHighlight,
4114 edges| {
4115 let origin = point(
4116 layout.hitbox.origin.x,
4117 layout.hitbox.origin.y
4118 + (highlight_row_start.as_f32() - scroll_top)
4119 * layout.position_map.line_height,
4120 );
4121 let size = size(
4122 layout.hitbox.size.width,
4123 layout.position_map.line_height
4124 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4125 );
4126 let mut quad = fill(Bounds { origin, size }, highlight.background);
4127 if let Some(border_color) = highlight.border {
4128 quad.border_color = border_color;
4129 quad.border_widths = edges
4130 }
4131 window.paint_quad(quad);
4132 };
4133
4134 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4135 None;
4136 for (&new_row, &new_background) in &layout.highlighted_rows {
4137 match &mut current_paint {
4138 Some((current_background, current_range, mut edges)) => {
4139 let current_background = *current_background;
4140 let new_range_started = current_background != new_background
4141 || current_range.end.next_row() != new_row;
4142 if new_range_started {
4143 if current_range.end.next_row() == new_row {
4144 edges.bottom = px(0.);
4145 };
4146 paint_highlight(
4147 current_range.start,
4148 current_range.end,
4149 current_background,
4150 edges,
4151 );
4152 let edges = Edges {
4153 top: if current_range.end.next_row() != new_row {
4154 px(1.)
4155 } else {
4156 px(0.)
4157 },
4158 bottom: px(1.),
4159 ..Default::default()
4160 };
4161 current_paint = Some((new_background, new_row..new_row, edges));
4162 continue;
4163 } else {
4164 current_range.end = current_range.end.next_row();
4165 }
4166 }
4167 None => {
4168 let edges = Edges {
4169 top: px(1.),
4170 bottom: px(1.),
4171 ..Default::default()
4172 };
4173 current_paint = Some((new_background, new_row..new_row, edges))
4174 }
4175 };
4176 }
4177 if let Some((color, range, edges)) = current_paint {
4178 paint_highlight(range.start, range.end, color, edges);
4179 }
4180
4181 let scroll_left =
4182 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4183
4184 for (wrap_position, active) in layout.wrap_guides.iter() {
4185 let x = (layout.position_map.text_hitbox.origin.x
4186 + *wrap_position
4187 + layout.position_map.em_width / 2.)
4188 - scroll_left;
4189
4190 let show_scrollbars = layout
4191 .scrollbars_layout
4192 .as_ref()
4193 .map_or(false, |layout| layout.visible);
4194
4195 if x < layout.position_map.text_hitbox.origin.x
4196 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4197 {
4198 continue;
4199 }
4200
4201 let color = if *active {
4202 cx.theme().colors().editor_active_wrap_guide
4203 } else {
4204 cx.theme().colors().editor_wrap_guide
4205 };
4206 window.paint_quad(fill(
4207 Bounds {
4208 origin: point(x, layout.position_map.text_hitbox.origin.y),
4209 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4210 },
4211 color,
4212 ));
4213 }
4214 }
4215 })
4216 }
4217
4218 fn paint_indent_guides(
4219 &mut self,
4220 layout: &mut EditorLayout,
4221 window: &mut Window,
4222 cx: &mut App,
4223 ) {
4224 let Some(indent_guides) = &layout.indent_guides else {
4225 return;
4226 };
4227
4228 let faded_color = |color: Hsla, alpha: f32| {
4229 let mut faded = color;
4230 faded.a = alpha;
4231 faded
4232 };
4233
4234 for indent_guide in indent_guides {
4235 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4236 let settings = indent_guide.settings;
4237
4238 // TODO fixed for now, expose them through themes later
4239 const INDENT_AWARE_ALPHA: f32 = 0.2;
4240 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4241 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4242 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4243
4244 let line_color = match (settings.coloring, indent_guide.active) {
4245 (IndentGuideColoring::Disabled, _) => None,
4246 (IndentGuideColoring::Fixed, false) => {
4247 Some(cx.theme().colors().editor_indent_guide)
4248 }
4249 (IndentGuideColoring::Fixed, true) => {
4250 Some(cx.theme().colors().editor_indent_guide_active)
4251 }
4252 (IndentGuideColoring::IndentAware, false) => {
4253 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4254 }
4255 (IndentGuideColoring::IndentAware, true) => {
4256 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4257 }
4258 };
4259
4260 let background_color = match (settings.background_coloring, indent_guide.active) {
4261 (IndentGuideBackgroundColoring::Disabled, _) => None,
4262 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4263 indent_accent_colors,
4264 INDENT_AWARE_BACKGROUND_ALPHA,
4265 )),
4266 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4267 indent_accent_colors,
4268 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4269 )),
4270 };
4271
4272 let requested_line_width = if indent_guide.active {
4273 settings.active_line_width
4274 } else {
4275 settings.line_width
4276 }
4277 .clamp(1, 10);
4278 let mut line_indicator_width = 0.;
4279 if let Some(color) = line_color {
4280 window.paint_quad(fill(
4281 Bounds {
4282 origin: indent_guide.origin,
4283 size: size(px(requested_line_width as f32), indent_guide.length),
4284 },
4285 color,
4286 ));
4287 line_indicator_width = requested_line_width as f32;
4288 }
4289
4290 if let Some(color) = background_color {
4291 let width = indent_guide.single_indent_width - px(line_indicator_width);
4292 window.paint_quad(fill(
4293 Bounds {
4294 origin: point(
4295 indent_guide.origin.x + px(line_indicator_width),
4296 indent_guide.origin.y,
4297 ),
4298 size: size(width, indent_guide.length),
4299 },
4300 color,
4301 ));
4302 }
4303 }
4304 }
4305
4306 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4307 let is_singleton = self.editor.read(cx).is_singleton(cx);
4308
4309 let line_height = layout.position_map.line_height;
4310 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4311
4312 for LineNumberLayout {
4313 shaped_line,
4314 hitbox,
4315 } in layout.line_numbers.values()
4316 {
4317 let Some(hitbox) = hitbox else {
4318 continue;
4319 };
4320
4321 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4322 let color = cx.theme().colors().editor_hover_line_number;
4323
4324 let Some(line) = self
4325 .shape_line_number(shaped_line.text.clone(), color, window)
4326 .log_err()
4327 else {
4328 continue;
4329 };
4330
4331 line.paint(hitbox.origin, line_height, window, cx).log_err()
4332 } else {
4333 shaped_line
4334 .paint(hitbox.origin, line_height, window, cx)
4335 .log_err()
4336 }) else {
4337 continue;
4338 };
4339
4340 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4341 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4342 if is_singleton {
4343 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4344 } else {
4345 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4346 }
4347 }
4348 }
4349
4350 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4351 if layout.display_hunks.is_empty() {
4352 return;
4353 }
4354
4355 let line_height = layout.position_map.line_height;
4356 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4357 for (hunk, hitbox) in &layout.display_hunks {
4358 let hunk_to_paint = match hunk {
4359 DisplayDiffHunk::Folded { .. } => {
4360 let hunk_bounds = Self::diff_hunk_bounds(
4361 &layout.position_map.snapshot,
4362 line_height,
4363 layout.gutter_hitbox.bounds,
4364 &hunk,
4365 );
4366 Some((
4367 hunk_bounds,
4368 cx.theme().colors().version_control_modified,
4369 Corners::all(px(0.)),
4370 DiffHunkStatus::modified_none(),
4371 ))
4372 }
4373 DisplayDiffHunk::Unfolded {
4374 status,
4375 display_row_range,
4376 ..
4377 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4378 DiffHunkStatusKind::Added => (
4379 hunk_hitbox.bounds,
4380 cx.theme().colors().version_control_added,
4381 Corners::all(px(0.)),
4382 *status,
4383 ),
4384 DiffHunkStatusKind::Modified => (
4385 hunk_hitbox.bounds,
4386 cx.theme().colors().version_control_modified,
4387 Corners::all(px(0.)),
4388 *status,
4389 ),
4390 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4391 hunk_hitbox.bounds,
4392 cx.theme().colors().version_control_deleted,
4393 Corners::all(px(0.)),
4394 *status,
4395 ),
4396 DiffHunkStatusKind::Deleted => (
4397 Bounds::new(
4398 point(
4399 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4400 hunk_hitbox.origin.y,
4401 ),
4402 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4403 ),
4404 cx.theme().colors().version_control_deleted,
4405 Corners::all(1. * line_height),
4406 *status,
4407 ),
4408 }),
4409 };
4410
4411 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4412 // Flatten the background color with the editor color to prevent
4413 // elements below transparent hunks from showing through
4414 let flattened_background_color = cx
4415 .theme()
4416 .colors()
4417 .editor_background
4418 .blend(background_color);
4419
4420 if !Self::diff_hunk_hollow(status, cx) {
4421 window.paint_quad(quad(
4422 hunk_bounds,
4423 corner_radii,
4424 flattened_background_color,
4425 Edges::default(),
4426 transparent_black(),
4427 BorderStyle::default(),
4428 ));
4429 } else {
4430 let flattened_unstaged_background_color = cx
4431 .theme()
4432 .colors()
4433 .editor_background
4434 .blend(background_color.opacity(0.3));
4435
4436 window.paint_quad(quad(
4437 hunk_bounds,
4438 corner_radii,
4439 flattened_unstaged_background_color,
4440 Edges::all(Pixels(1.0)),
4441 flattened_background_color,
4442 BorderStyle::Solid,
4443 ));
4444 }
4445 }
4446 }
4447 });
4448 }
4449
4450 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4451 (0.275 * line_height).floor()
4452 }
4453
4454 fn diff_hunk_bounds(
4455 snapshot: &EditorSnapshot,
4456 line_height: Pixels,
4457 gutter_bounds: Bounds<Pixels>,
4458 hunk: &DisplayDiffHunk,
4459 ) -> Bounds<Pixels> {
4460 let scroll_position = snapshot.scroll_position();
4461 let scroll_top = scroll_position.y * line_height;
4462 let gutter_strip_width = Self::gutter_strip_width(line_height);
4463
4464 match hunk {
4465 DisplayDiffHunk::Folded { display_row, .. } => {
4466 let start_y = display_row.as_f32() * line_height - scroll_top;
4467 let end_y = start_y + line_height;
4468 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4469 let highlight_size = size(gutter_strip_width, end_y - start_y);
4470 Bounds::new(highlight_origin, highlight_size)
4471 }
4472 DisplayDiffHunk::Unfolded {
4473 display_row_range,
4474 status,
4475 ..
4476 } => {
4477 if status.is_deleted() && display_row_range.is_empty() {
4478 let row = display_row_range.start;
4479
4480 let offset = line_height / 2.;
4481 let start_y = row.as_f32() * line_height - offset - scroll_top;
4482 let end_y = start_y + line_height;
4483
4484 let width = (0.35 * line_height).floor();
4485 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4486 let highlight_size = size(width, end_y - start_y);
4487 Bounds::new(highlight_origin, highlight_size)
4488 } else {
4489 let start_row = display_row_range.start;
4490 let end_row = display_row_range.end;
4491 // If we're in a multibuffer, row range span might include an
4492 // excerpt header, so if we were to draw the marker straight away,
4493 // the hunk might include the rows of that header.
4494 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4495 // Instead, we simply check whether the range we're dealing with includes
4496 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4497 let end_row_in_current_excerpt = snapshot
4498 .blocks_in_range(start_row..end_row)
4499 .find_map(|(start_row, block)| {
4500 if matches!(block, Block::ExcerptBoundary { .. }) {
4501 Some(start_row)
4502 } else {
4503 None
4504 }
4505 })
4506 .unwrap_or(end_row);
4507
4508 let start_y = start_row.as_f32() * line_height - scroll_top;
4509 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4510
4511 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4512 let highlight_size = size(gutter_strip_width, end_y - start_y);
4513 Bounds::new(highlight_origin, highlight_size)
4514 }
4515 }
4516 }
4517 }
4518
4519 fn paint_gutter_indicators(
4520 &self,
4521 layout: &mut EditorLayout,
4522 window: &mut Window,
4523 cx: &mut App,
4524 ) {
4525 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4526 window.with_element_namespace("crease_toggles", |window| {
4527 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4528 crease_toggle.paint(window, cx);
4529 }
4530 });
4531
4532 window.with_element_namespace("expand_toggles", |window| {
4533 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4534 expand_toggle.paint(window, cx);
4535 }
4536 });
4537
4538 for breakpoint in layout.breakpoints.iter_mut() {
4539 breakpoint.paint(window, cx);
4540 }
4541
4542 for test_indicator in layout.test_indicators.iter_mut() {
4543 test_indicator.paint(window, cx);
4544 }
4545
4546 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4547 indicator.paint(window, cx);
4548 }
4549 });
4550 }
4551
4552 fn paint_gutter_highlights(
4553 &self,
4554 layout: &mut EditorLayout,
4555 window: &mut Window,
4556 cx: &mut App,
4557 ) {
4558 for (_, hunk_hitbox) in &layout.display_hunks {
4559 if let Some(hunk_hitbox) = hunk_hitbox {
4560 if !self
4561 .editor
4562 .read(cx)
4563 .buffer()
4564 .read(cx)
4565 .all_diff_hunks_expanded()
4566 {
4567 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4568 }
4569 }
4570 }
4571
4572 let show_git_gutter = layout
4573 .position_map
4574 .snapshot
4575 .show_git_diff_gutter
4576 .unwrap_or_else(|| {
4577 matches!(
4578 ProjectSettings::get_global(cx).git.git_gutter,
4579 Some(GitGutterSetting::TrackedFiles)
4580 )
4581 });
4582 if show_git_gutter {
4583 Self::paint_gutter_diff_hunks(layout, window, cx)
4584 }
4585
4586 let highlight_width = 0.275 * layout.position_map.line_height;
4587 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4588 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4589 for (range, color) in &layout.highlighted_gutter_ranges {
4590 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4591 layout.visible_display_row_range.start - DisplayRow(1)
4592 } else {
4593 range.start.row()
4594 };
4595 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4596 layout.visible_display_row_range.end + DisplayRow(1)
4597 } else {
4598 range.end.row()
4599 };
4600
4601 let start_y = layout.gutter_hitbox.top()
4602 + start_row.0 as f32 * layout.position_map.line_height
4603 - layout.position_map.scroll_pixel_position.y;
4604 let end_y = layout.gutter_hitbox.top()
4605 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4606 - layout.position_map.scroll_pixel_position.y;
4607 let bounds = Bounds::from_corners(
4608 point(layout.gutter_hitbox.left(), start_y),
4609 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4610 );
4611 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4612 }
4613 });
4614 }
4615
4616 fn paint_blamed_display_rows(
4617 &self,
4618 layout: &mut EditorLayout,
4619 window: &mut Window,
4620 cx: &mut App,
4621 ) {
4622 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4623 return;
4624 };
4625
4626 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4627 for mut blame_element in blamed_display_rows.into_iter() {
4628 blame_element.paint(window, cx);
4629 }
4630 })
4631 }
4632
4633 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4634 window.with_content_mask(
4635 Some(ContentMask {
4636 bounds: layout.position_map.text_hitbox.bounds,
4637 }),
4638 |window| {
4639 let cursor_style = if self
4640 .editor
4641 .read(cx)
4642 .hovered_link_state
4643 .as_ref()
4644 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4645 {
4646 CursorStyle::PointingHand
4647 } else {
4648 CursorStyle::IBeam
4649 };
4650 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4651
4652 self.paint_lines_background(layout, window, cx);
4653 let invisible_display_ranges = self.paint_highlights(layout, window);
4654 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4655 self.paint_redactions(layout, window);
4656 self.paint_cursors(layout, window, cx);
4657 self.paint_inline_diagnostics(layout, window, cx);
4658 self.paint_inline_blame(layout, window, cx);
4659 self.paint_diff_hunk_controls(layout, window, cx);
4660 window.with_element_namespace("crease_trailers", |window| {
4661 for trailer in layout.crease_trailers.iter_mut().flatten() {
4662 trailer.element.paint(window, cx);
4663 }
4664 });
4665 },
4666 )
4667 }
4668
4669 fn paint_highlights(
4670 &mut self,
4671 layout: &mut EditorLayout,
4672 window: &mut Window,
4673 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4674 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4675 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4676 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4677 for (range, color) in &layout.highlighted_ranges {
4678 self.paint_highlighted_range(
4679 range.clone(),
4680 *color,
4681 Pixels::ZERO,
4682 line_end_overshoot,
4683 layout,
4684 window,
4685 );
4686 }
4687
4688 let corner_radius = 0.15 * layout.position_map.line_height;
4689
4690 for (player_color, selections) in &layout.selections {
4691 for selection in selections.iter() {
4692 self.paint_highlighted_range(
4693 selection.range.clone(),
4694 player_color.selection,
4695 corner_radius,
4696 corner_radius * 2.,
4697 layout,
4698 window,
4699 );
4700
4701 if selection.is_local && !selection.range.is_empty() {
4702 invisible_display_ranges.push(selection.range.clone());
4703 }
4704 }
4705 }
4706 invisible_display_ranges
4707 })
4708 }
4709
4710 fn paint_lines(
4711 &mut self,
4712 invisible_display_ranges: &[Range<DisplayPoint>],
4713 layout: &mut EditorLayout,
4714 window: &mut Window,
4715 cx: &mut App,
4716 ) {
4717 let whitespace_setting = self
4718 .editor
4719 .read(cx)
4720 .buffer
4721 .read(cx)
4722 .language_settings(cx)
4723 .show_whitespaces;
4724
4725 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4726 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4727 line_with_invisibles.draw(
4728 layout,
4729 row,
4730 layout.content_origin,
4731 whitespace_setting,
4732 invisible_display_ranges,
4733 window,
4734 cx,
4735 )
4736 }
4737
4738 for line_element in &mut layout.line_elements {
4739 line_element.paint(window, cx);
4740 }
4741 }
4742
4743 fn paint_lines_background(
4744 &mut self,
4745 layout: &mut EditorLayout,
4746 window: &mut Window,
4747 cx: &mut App,
4748 ) {
4749 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4750 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4751 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4752 }
4753 }
4754
4755 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4756 if layout.redacted_ranges.is_empty() {
4757 return;
4758 }
4759
4760 let line_end_overshoot = layout.line_end_overshoot();
4761
4762 // A softer than perfect black
4763 let redaction_color = gpui::rgb(0x0e1111);
4764
4765 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4766 for range in layout.redacted_ranges.iter() {
4767 self.paint_highlighted_range(
4768 range.clone(),
4769 redaction_color.into(),
4770 Pixels::ZERO,
4771 line_end_overshoot,
4772 layout,
4773 window,
4774 );
4775 }
4776 });
4777 }
4778
4779 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4780 for cursor in &mut layout.visible_cursors {
4781 cursor.paint(layout.content_origin, window, cx);
4782 }
4783 }
4784
4785 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4786 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
4787 return;
4788 };
4789
4790 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
4791 let hitbox = &scrollbar_layout.hitbox;
4792 let thumb_bounds = scrollbar_layout.thumb_bounds();
4793
4794 if scrollbars_layout.visible {
4795 let scrollbar_edges = match axis {
4796 ScrollbarAxis::Horizontal => Edges {
4797 top: Pixels::ZERO,
4798 right: Pixels::ZERO,
4799 bottom: Pixels::ZERO,
4800 left: Pixels::ZERO,
4801 },
4802 ScrollbarAxis::Vertical => Edges {
4803 top: Pixels::ZERO,
4804 right: Pixels::ZERO,
4805 bottom: Pixels::ZERO,
4806 left: ScrollbarLayout::BORDER_WIDTH,
4807 },
4808 };
4809
4810 window.paint_layer(hitbox.bounds, |window| {
4811 window.paint_quad(quad(
4812 hitbox.bounds,
4813 Corners::default(),
4814 cx.theme().colors().scrollbar_track_background,
4815 scrollbar_edges,
4816 cx.theme().colors().scrollbar_track_border,
4817 BorderStyle::Solid,
4818 ));
4819
4820 if axis == ScrollbarAxis::Vertical {
4821 let fast_markers =
4822 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4823 // Refresh slow scrollbar markers in the background. Below, we
4824 // paint whatever markers have already been computed.
4825 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4826
4827 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4828 for marker in markers.iter().chain(&fast_markers) {
4829 let mut marker = marker.clone();
4830 marker.bounds.origin += hitbox.origin;
4831 window.paint_quad(marker);
4832 }
4833 }
4834
4835 window.paint_quad(quad(
4836 thumb_bounds,
4837 Corners::default(),
4838 cx.theme().colors().scrollbar_thumb_background,
4839 scrollbar_edges,
4840 cx.theme().colors().scrollbar_thumb_border,
4841 BorderStyle::Solid,
4842 ));
4843 })
4844 }
4845 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4846 }
4847
4848 window.on_mouse_event({
4849 let editor = self.editor.clone();
4850 let scrollbars_layout = scrollbars_layout.clone();
4851
4852 let mut mouse_position = window.mouse_position();
4853 move |event: &MouseMoveEvent, phase, window, cx| {
4854 if phase == DispatchPhase::Capture {
4855 return;
4856 }
4857
4858 editor.update(cx, |editor, cx| {
4859 if let Some((scrollbar_layout, axis)) = event
4860 .pressed_button
4861 .filter(|button| *button == MouseButton::Left)
4862 .and(editor.scroll_manager.dragging_scrollbar_axis())
4863 .and_then(|axis| {
4864 scrollbars_layout
4865 .iter_scrollbars()
4866 .find(|(_, a)| *a == axis)
4867 })
4868 {
4869 let ScrollbarLayout {
4870 hitbox,
4871 text_unit_size,
4872 ..
4873 } = scrollbar_layout;
4874
4875 let old_position = mouse_position.along(axis);
4876 let new_position = event.position.along(axis);
4877 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
4878 .contains(&old_position)
4879 {
4880 let position = editor.scroll_position(cx).apply_along(axis, |p| {
4881 (p + (new_position - old_position) / *text_unit_size).max(0.)
4882 });
4883 editor.set_scroll_position(position, window, cx);
4884 }
4885 cx.stop_propagation();
4886 } else {
4887 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4888 }
4889
4890 if scrollbars_layout.get_hovered_axis(window).is_some() {
4891 editor.scroll_manager.show_scrollbars(window, cx);
4892 }
4893
4894 mouse_position = event.position;
4895 })
4896 }
4897 });
4898
4899 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
4900 window.on_mouse_event({
4901 let editor = self.editor.clone();
4902 move |_: &MouseUpEvent, phase, _, cx| {
4903 if phase == DispatchPhase::Capture {
4904 return;
4905 }
4906
4907 editor.update(cx, |editor, cx| {
4908 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4909 cx.stop_propagation();
4910 });
4911 }
4912 });
4913 } else {
4914 window.on_mouse_event({
4915 let editor = self.editor.clone();
4916 let scrollbars_layout = scrollbars_layout.clone();
4917
4918 move |event: &MouseDownEvent, phase, window, cx| {
4919 if phase == DispatchPhase::Capture {
4920 return;
4921 }
4922 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
4923 else {
4924 return;
4925 };
4926
4927 let ScrollbarLayout {
4928 hitbox,
4929 visible_range,
4930 text_unit_size,
4931 ..
4932 } = scrollbar_layout;
4933
4934 let thumb_bounds = scrollbar_layout.thumb_bounds();
4935
4936 editor.update(cx, |editor, cx| {
4937 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
4938
4939 let event_position = event.position.along(axis);
4940
4941 if event_position < thumb_bounds.origin.along(axis)
4942 || thumb_bounds.bottom_right().along(axis) < event_position
4943 {
4944 let center_position = ((event_position - hitbox.origin.along(axis))
4945 / *text_unit_size)
4946 .round() as u32;
4947 let start_position = center_position.saturating_sub(
4948 (visible_range.end - visible_range.start) as u32 / 2,
4949 );
4950
4951 let position = editor
4952 .scroll_position(cx)
4953 .apply_along(axis, |_| start_position as f32);
4954
4955 editor.set_scroll_position(position, window, cx);
4956 } else {
4957 editor.scroll_manager.show_scrollbars(window, cx);
4958 }
4959
4960 cx.stop_propagation();
4961 });
4962 }
4963 });
4964 }
4965 }
4966
4967 fn collect_fast_scrollbar_markers(
4968 &self,
4969 layout: &EditorLayout,
4970 scrollbar_layout: &ScrollbarLayout,
4971 cx: &mut App,
4972 ) -> Vec<PaintQuad> {
4973 const LIMIT: usize = 100;
4974 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4975 return vec![];
4976 }
4977 let cursor_ranges = layout
4978 .cursors
4979 .iter()
4980 .map(|(point, color)| ColoredRange {
4981 start: point.row(),
4982 end: point.row(),
4983 color: *color,
4984 })
4985 .collect_vec();
4986 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4987 }
4988
4989 fn refresh_slow_scrollbar_markers(
4990 &self,
4991 layout: &EditorLayout,
4992 scrollbar_layout: &ScrollbarLayout,
4993 window: &mut Window,
4994 cx: &mut App,
4995 ) {
4996 self.editor.update(cx, |editor, cx| {
4997 if !editor.is_singleton(cx)
4998 || !editor
4999 .scrollbar_marker_state
5000 .should_refresh(scrollbar_layout.hitbox.size)
5001 {
5002 return;
5003 }
5004
5005 let scrollbar_layout = scrollbar_layout.clone();
5006 let background_highlights = editor.background_highlights.clone();
5007 let snapshot = layout.position_map.snapshot.clone();
5008 let theme = cx.theme().clone();
5009 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5010
5011 editor.scrollbar_marker_state.dirty = false;
5012 editor.scrollbar_marker_state.pending_refresh =
5013 Some(cx.spawn_in(window, async move |editor, cx| {
5014 let scrollbar_size = scrollbar_layout.hitbox.size;
5015 let scrollbar_markers = cx
5016 .background_spawn(async move {
5017 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5018 let mut marker_quads = Vec::new();
5019 if scrollbar_settings.git_diff {
5020 let marker_row_ranges =
5021 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5022 let start_display_row =
5023 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5024 .to_display_point(&snapshot.display_snapshot)
5025 .row();
5026 let mut end_display_row =
5027 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5028 .to_display_point(&snapshot.display_snapshot)
5029 .row();
5030 if end_display_row != start_display_row {
5031 end_display_row.0 -= 1;
5032 }
5033 let color = match &hunk.status().kind {
5034 DiffHunkStatusKind::Added => {
5035 theme.colors().version_control_added
5036 }
5037 DiffHunkStatusKind::Modified => {
5038 theme.colors().version_control_modified
5039 }
5040 DiffHunkStatusKind::Deleted => {
5041 theme.colors().version_control_deleted
5042 }
5043 };
5044 ColoredRange {
5045 start: start_display_row,
5046 end: end_display_row,
5047 color,
5048 }
5049 });
5050
5051 marker_quads.extend(
5052 scrollbar_layout
5053 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5054 );
5055 }
5056
5057 for (background_highlight_id, (_, background_ranges)) in
5058 background_highlights.iter()
5059 {
5060 let is_search_highlights = *background_highlight_id
5061 == TypeId::of::<BufferSearchHighlights>();
5062 let is_text_highlights = *background_highlight_id
5063 == TypeId::of::<SelectedTextHighlight>();
5064 let is_symbol_occurrences = *background_highlight_id
5065 == TypeId::of::<DocumentHighlightRead>()
5066 || *background_highlight_id
5067 == TypeId::of::<DocumentHighlightWrite>();
5068 if (is_search_highlights && scrollbar_settings.search_results)
5069 || (is_text_highlights && scrollbar_settings.selected_text)
5070 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5071 {
5072 let mut color = theme.status().info;
5073 if is_symbol_occurrences {
5074 color.fade_out(0.5);
5075 }
5076 let marker_row_ranges = background_ranges.iter().map(|range| {
5077 let display_start = range
5078 .start
5079 .to_display_point(&snapshot.display_snapshot);
5080 let display_end =
5081 range.end.to_display_point(&snapshot.display_snapshot);
5082 ColoredRange {
5083 start: display_start.row(),
5084 end: display_end.row(),
5085 color,
5086 }
5087 });
5088 marker_quads.extend(
5089 scrollbar_layout
5090 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5091 );
5092 }
5093 }
5094
5095 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5096 let diagnostics = snapshot
5097 .buffer_snapshot
5098 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5099 // Don't show diagnostics the user doesn't care about
5100 .filter(|diagnostic| {
5101 match (
5102 scrollbar_settings.diagnostics,
5103 diagnostic.diagnostic.severity,
5104 ) {
5105 (ScrollbarDiagnostics::All, _) => true,
5106 (
5107 ScrollbarDiagnostics::Error,
5108 DiagnosticSeverity::ERROR,
5109 ) => true,
5110 (
5111 ScrollbarDiagnostics::Warning,
5112 DiagnosticSeverity::ERROR
5113 | DiagnosticSeverity::WARNING,
5114 ) => true,
5115 (
5116 ScrollbarDiagnostics::Information,
5117 DiagnosticSeverity::ERROR
5118 | DiagnosticSeverity::WARNING
5119 | DiagnosticSeverity::INFORMATION,
5120 ) => true,
5121 (_, _) => false,
5122 }
5123 })
5124 // We want to sort by severity, in order to paint the most severe diagnostics last.
5125 .sorted_by_key(|diagnostic| {
5126 std::cmp::Reverse(diagnostic.diagnostic.severity)
5127 });
5128
5129 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5130 let start_display = diagnostic
5131 .range
5132 .start
5133 .to_display_point(&snapshot.display_snapshot);
5134 let end_display = diagnostic
5135 .range
5136 .end
5137 .to_display_point(&snapshot.display_snapshot);
5138 let color = match diagnostic.diagnostic.severity {
5139 DiagnosticSeverity::ERROR => theme.status().error,
5140 DiagnosticSeverity::WARNING => theme.status().warning,
5141 DiagnosticSeverity::INFORMATION => theme.status().info,
5142 _ => theme.status().hint,
5143 };
5144 ColoredRange {
5145 start: start_display.row(),
5146 end: end_display.row(),
5147 color,
5148 }
5149 });
5150 marker_quads.extend(
5151 scrollbar_layout
5152 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5153 );
5154 }
5155
5156 Arc::from(marker_quads)
5157 })
5158 .await;
5159
5160 editor.update(cx, |editor, cx| {
5161 editor.scrollbar_marker_state.markers = scrollbar_markers;
5162 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5163 editor.scrollbar_marker_state.pending_refresh = None;
5164 cx.notify();
5165 })?;
5166
5167 Ok(())
5168 }));
5169 });
5170 }
5171
5172 fn paint_highlighted_range(
5173 &self,
5174 range: Range<DisplayPoint>,
5175 color: Hsla,
5176 corner_radius: Pixels,
5177 line_end_overshoot: Pixels,
5178 layout: &EditorLayout,
5179 window: &mut Window,
5180 ) {
5181 let start_row = layout.visible_display_row_range.start;
5182 let end_row = layout.visible_display_row_range.end;
5183 if range.start != range.end {
5184 let row_range = if range.end.column() == 0 {
5185 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5186 } else {
5187 cmp::max(range.start.row(), start_row)
5188 ..cmp::min(range.end.row().next_row(), end_row)
5189 };
5190
5191 let highlighted_range = HighlightedRange {
5192 color,
5193 line_height: layout.position_map.line_height,
5194 corner_radius,
5195 start_y: layout.content_origin.y
5196 + row_range.start.as_f32() * layout.position_map.line_height
5197 - layout.position_map.scroll_pixel_position.y,
5198 lines: row_range
5199 .iter_rows()
5200 .map(|row| {
5201 let line_layout =
5202 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5203 HighlightedRangeLine {
5204 start_x: if row == range.start.row() {
5205 layout.content_origin.x
5206 + line_layout.x_for_index(range.start.column() as usize)
5207 - layout.position_map.scroll_pixel_position.x
5208 } else {
5209 layout.content_origin.x
5210 - layout.position_map.scroll_pixel_position.x
5211 },
5212 end_x: if row == range.end.row() {
5213 layout.content_origin.x
5214 + line_layout.x_for_index(range.end.column() as usize)
5215 - layout.position_map.scroll_pixel_position.x
5216 } else {
5217 layout.content_origin.x + line_layout.width + line_end_overshoot
5218 - layout.position_map.scroll_pixel_position.x
5219 },
5220 }
5221 })
5222 .collect(),
5223 };
5224
5225 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5226 }
5227 }
5228
5229 fn paint_inline_diagnostics(
5230 &mut self,
5231 layout: &mut EditorLayout,
5232 window: &mut Window,
5233 cx: &mut App,
5234 ) {
5235 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5236 inline_diagnostic.1.paint(window, cx);
5237 }
5238 }
5239
5240 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5241 if let Some(mut inline_blame) = layout.inline_blame.take() {
5242 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5243 inline_blame.paint(window, cx);
5244 })
5245 }
5246 }
5247
5248 fn paint_diff_hunk_controls(
5249 &mut self,
5250 layout: &mut EditorLayout,
5251 window: &mut Window,
5252 cx: &mut App,
5253 ) {
5254 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5255 diff_hunk_control.paint(window, cx);
5256 }
5257 }
5258
5259 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5260 for mut block in layout.blocks.drain(..) {
5261 block.element.paint(window, cx);
5262 }
5263 }
5264
5265 fn paint_inline_completion_popover(
5266 &mut self,
5267 layout: &mut EditorLayout,
5268 window: &mut Window,
5269 cx: &mut App,
5270 ) {
5271 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5272 inline_completion_popover.paint(window, cx);
5273 }
5274 }
5275
5276 fn paint_mouse_context_menu(
5277 &mut self,
5278 layout: &mut EditorLayout,
5279 window: &mut Window,
5280 cx: &mut App,
5281 ) {
5282 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5283 mouse_context_menu.paint(window, cx);
5284 }
5285 }
5286
5287 fn paint_scroll_wheel_listener(
5288 &mut self,
5289 layout: &EditorLayout,
5290 window: &mut Window,
5291 cx: &mut App,
5292 ) {
5293 window.on_mouse_event({
5294 let position_map = layout.position_map.clone();
5295 let editor = self.editor.clone();
5296 let hitbox = layout.hitbox.clone();
5297 let mut delta = ScrollDelta::default();
5298
5299 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5300 // accidentally turn off their scrolling.
5301 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5302
5303 move |event: &ScrollWheelEvent, phase, window, cx| {
5304 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5305 delta = delta.coalesce(event.delta);
5306 editor.update(cx, |editor, cx| {
5307 let position_map: &PositionMap = &position_map;
5308
5309 let line_height = position_map.line_height;
5310 let max_glyph_width = position_map.em_width;
5311 let (delta, axis) = match delta {
5312 gpui::ScrollDelta::Pixels(mut pixels) => {
5313 //Trackpad
5314 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5315 (pixels, axis)
5316 }
5317
5318 gpui::ScrollDelta::Lines(lines) => {
5319 //Not trackpad
5320 let pixels =
5321 point(lines.x * max_glyph_width, lines.y * line_height);
5322 (pixels, None)
5323 }
5324 };
5325
5326 let current_scroll_position = position_map.snapshot.scroll_position();
5327 let x = (current_scroll_position.x * max_glyph_width
5328 - (delta.x * scroll_sensitivity))
5329 / max_glyph_width;
5330 let y = (current_scroll_position.y * line_height
5331 - (delta.y * scroll_sensitivity))
5332 / line_height;
5333 let mut scroll_position =
5334 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5335 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5336 if forbid_vertical_scroll {
5337 scroll_position.y = current_scroll_position.y;
5338 }
5339
5340 if scroll_position != current_scroll_position {
5341 editor.scroll(scroll_position, axis, window, cx);
5342 cx.stop_propagation();
5343 } else if y < 0. {
5344 // Due to clamping, we may fail to detect cases of overscroll to the top;
5345 // We want the scroll manager to get an update in such cases and detect the change of direction
5346 // on the next frame.
5347 cx.notify();
5348 }
5349 });
5350 }
5351 }
5352 });
5353 }
5354
5355 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5356 self.paint_scroll_wheel_listener(layout, window, cx);
5357
5358 window.on_mouse_event({
5359 let position_map = layout.position_map.clone();
5360 let editor = self.editor.clone();
5361 let diff_hunk_range =
5362 layout
5363 .display_hunks
5364 .iter()
5365 .find_map(|(hunk, hunk_hitbox)| match hunk {
5366 DisplayDiffHunk::Folded { .. } => None,
5367 DisplayDiffHunk::Unfolded {
5368 multi_buffer_range, ..
5369 } => {
5370 if hunk_hitbox
5371 .as_ref()
5372 .map(|hitbox| hitbox.is_hovered(window))
5373 .unwrap_or(false)
5374 {
5375 Some(multi_buffer_range.clone())
5376 } else {
5377 None
5378 }
5379 }
5380 });
5381 let line_numbers = layout.line_numbers.clone();
5382
5383 move |event: &MouseDownEvent, phase, window, cx| {
5384 if phase == DispatchPhase::Bubble {
5385 match event.button {
5386 MouseButton::Left => editor.update(cx, |editor, cx| {
5387 let pending_mouse_down = editor
5388 .pending_mouse_down
5389 .get_or_insert_with(Default::default)
5390 .clone();
5391
5392 *pending_mouse_down.borrow_mut() = Some(event.clone());
5393
5394 Self::mouse_left_down(
5395 editor,
5396 event,
5397 diff_hunk_range.clone(),
5398 &position_map,
5399 line_numbers.as_ref(),
5400 window,
5401 cx,
5402 );
5403 }),
5404 MouseButton::Right => editor.update(cx, |editor, cx| {
5405 Self::mouse_right_down(editor, event, &position_map, window, cx);
5406 }),
5407 MouseButton::Middle => editor.update(cx, |editor, cx| {
5408 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5409 }),
5410 _ => {}
5411 };
5412 }
5413 }
5414 });
5415
5416 window.on_mouse_event({
5417 let editor = self.editor.clone();
5418 let position_map = layout.position_map.clone();
5419
5420 move |event: &MouseUpEvent, phase, window, cx| {
5421 if phase == DispatchPhase::Bubble {
5422 editor.update(cx, |editor, cx| {
5423 Self::mouse_up(editor, event, &position_map, window, cx)
5424 });
5425 }
5426 }
5427 });
5428
5429 window.on_mouse_event({
5430 let editor = self.editor.clone();
5431 let position_map = layout.position_map.clone();
5432 let mut captured_mouse_down = None;
5433
5434 move |event: &MouseUpEvent, phase, window, cx| match phase {
5435 // Clear the pending mouse down during the capture phase,
5436 // so that it happens even if another event handler stops
5437 // propagation.
5438 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5439 let pending_mouse_down = editor
5440 .pending_mouse_down
5441 .get_or_insert_with(Default::default)
5442 .clone();
5443
5444 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5445 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5446 captured_mouse_down = pending_mouse_down.take();
5447 window.refresh();
5448 }
5449 }),
5450 // Fire click handlers during the bubble phase.
5451 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5452 if let Some(mouse_down) = captured_mouse_down.take() {
5453 let event = ClickEvent {
5454 down: mouse_down,
5455 up: event.clone(),
5456 };
5457 Self::click(editor, &event, &position_map, window, cx);
5458 }
5459 }),
5460 }
5461 });
5462
5463 window.on_mouse_event({
5464 let position_map = layout.position_map.clone();
5465 let editor = self.editor.clone();
5466
5467 move |event: &MouseMoveEvent, phase, window, cx| {
5468 if phase == DispatchPhase::Bubble {
5469 editor.update(cx, |editor, cx| {
5470 if editor.hover_state.focused(window, cx) {
5471 return;
5472 }
5473 if event.pressed_button == Some(MouseButton::Left)
5474 || event.pressed_button == Some(MouseButton::Middle)
5475 {
5476 Self::mouse_dragged(editor, event, &position_map, window, cx)
5477 }
5478
5479 Self::mouse_moved(editor, event, &position_map, window, cx)
5480 });
5481 }
5482 }
5483 });
5484 }
5485
5486 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5487 bounds.top_right().x - self.style.scrollbar_width
5488 }
5489
5490 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5491 let style = &self.style;
5492 let font_size = style.text.font_size.to_pixels(window.rem_size());
5493 let layout = window
5494 .text_system()
5495 .shape_line(
5496 SharedString::from(" ".repeat(column)),
5497 font_size,
5498 &[TextRun {
5499 len: column,
5500 font: style.text.font(),
5501 color: Hsla::default(),
5502 background_color: None,
5503 underline: None,
5504 strikethrough: None,
5505 }],
5506 )
5507 .unwrap();
5508
5509 layout.width
5510 }
5511
5512 fn max_line_number_width(
5513 &self,
5514 snapshot: &EditorSnapshot,
5515 window: &mut Window,
5516 cx: &mut App,
5517 ) -> Pixels {
5518 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5519 self.column_pixels(digit_count as usize, window, cx)
5520 }
5521
5522 fn shape_line_number(
5523 &self,
5524 text: SharedString,
5525 color: Hsla,
5526 window: &mut Window,
5527 ) -> anyhow::Result<ShapedLine> {
5528 let run = TextRun {
5529 len: text.len(),
5530 font: self.style.text.font(),
5531 color,
5532 background_color: None,
5533 underline: None,
5534 strikethrough: None,
5535 };
5536 window.text_system().shape_line(
5537 text,
5538 self.style.text.font_size.to_pixels(window.rem_size()),
5539 &[run],
5540 )
5541 }
5542
5543 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5544 let unstaged = status.has_secondary_hunk();
5545 let unstaged_hollow = ProjectSettings::get_global(cx)
5546 .git
5547 .hunk_style
5548 .map_or(false, |style| {
5549 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5550 });
5551
5552 unstaged == unstaged_hollow
5553 }
5554}
5555
5556fn header_jump_data(
5557 snapshot: &EditorSnapshot,
5558 block_row_start: DisplayRow,
5559 height: u32,
5560 for_excerpt: &ExcerptInfo,
5561) -> JumpData {
5562 let range = &for_excerpt.range;
5563 let buffer = &for_excerpt.buffer;
5564 let jump_anchor = range
5565 .primary
5566 .as_ref()
5567 .map_or(range.context.start, |primary| primary.start);
5568
5569 let excerpt_start = range.context.start;
5570 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5571 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5572 0
5573 } else {
5574 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5575 jump_position.row.saturating_sub(excerpt_start_point.row)
5576 };
5577
5578 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5579 .saturating_sub(
5580 snapshot
5581 .scroll_anchor
5582 .scroll_position(&snapshot.display_snapshot)
5583 .y as u32,
5584 );
5585
5586 JumpData::MultiBufferPoint {
5587 excerpt_id: for_excerpt.id,
5588 anchor: jump_anchor,
5589 position: jump_position,
5590 line_offset_from_top,
5591 }
5592}
5593
5594pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5595
5596impl AcceptEditPredictionBinding {
5597 pub fn keystroke(&self) -> Option<&Keystroke> {
5598 if let Some(binding) = self.0.as_ref() {
5599 match &binding.keystrokes() {
5600 [keystroke] => Some(keystroke),
5601 _ => None,
5602 }
5603 } else {
5604 None
5605 }
5606 }
5607}
5608
5609fn prepaint_gutter_button(
5610 button: IconButton,
5611 row: DisplayRow,
5612 line_height: Pixels,
5613 gutter_dimensions: &GutterDimensions,
5614 scroll_pixel_position: gpui::Point<Pixels>,
5615 gutter_hitbox: &Hitbox,
5616 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5617 window: &mut Window,
5618 cx: &mut App,
5619) -> AnyElement {
5620 let mut button = button.into_any_element();
5621
5622 let available_space = size(
5623 AvailableSpace::MinContent,
5624 AvailableSpace::Definite(line_height),
5625 );
5626 let indicator_size = button.layout_as_root(available_space, window, cx);
5627
5628 let blame_width = gutter_dimensions.git_blame_entries_width;
5629 let gutter_width = display_hunks
5630 .binary_search_by(|(hunk, _)| match hunk {
5631 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5632 DisplayDiffHunk::Unfolded {
5633 display_row_range, ..
5634 } => {
5635 if display_row_range.end <= row {
5636 Ordering::Less
5637 } else if display_row_range.start > row {
5638 Ordering::Greater
5639 } else {
5640 Ordering::Equal
5641 }
5642 }
5643 })
5644 .ok()
5645 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5646 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5647
5648 let mut x = left_offset;
5649 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5650 - indicator_size.width
5651 - left_offset;
5652 x += available_width / 2.;
5653
5654 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5655 y += (line_height - indicator_size.height) / 2.;
5656
5657 button.prepaint_as_root(
5658 gutter_hitbox.origin + point(x, y),
5659 available_space,
5660 window,
5661 cx,
5662 );
5663 button
5664}
5665
5666fn render_inline_blame_entry(
5667 editor: Entity<Editor>,
5668 blame: &gpui::Entity<GitBlame>,
5669 blame_entry: BlameEntry,
5670 style: &EditorStyle,
5671 cx: &mut App,
5672) -> AnyElement {
5673 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5674
5675 let author = blame_entry.author.as_deref().unwrap_or_default();
5676 let summary_enabled = ProjectSettings::get_global(cx)
5677 .git
5678 .show_inline_commit_summary();
5679
5680 let text = match blame_entry.summary.as_ref() {
5681 Some(summary) if summary_enabled => {
5682 format!("{}, {} - {}", author, relative_timestamp, summary)
5683 }
5684 _ => format!("{}, {}", author, relative_timestamp),
5685 };
5686 let blame = blame.clone();
5687 let blame_entry = blame_entry.clone();
5688
5689 h_flex()
5690 .id("inline-blame")
5691 .w_full()
5692 .font_family(style.text.font().family)
5693 .text_color(cx.theme().status().hint)
5694 .line_height(style.text.line_height)
5695 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5696 .child(text)
5697 .gap_2()
5698 .hoverable_tooltip(move |window, cx| {
5699 let details = blame.read(cx).details_for_entry(&blame_entry);
5700 let tooltip =
5701 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5702 editor.update(cx, |editor, _| {
5703 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5704 });
5705 tooltip.into()
5706 })
5707 .into_any()
5708}
5709
5710fn render_blame_entry(
5711 ix: usize,
5712 blame: &gpui::Entity<GitBlame>,
5713 blame_entry: BlameEntry,
5714 style: &EditorStyle,
5715 last_used_color: &mut Option<(PlayerColor, Oid)>,
5716 editor: Entity<Editor>,
5717 cx: &mut App,
5718) -> AnyElement {
5719 let mut sha_color = cx
5720 .theme()
5721 .players()
5722 .color_for_participant(blame_entry.sha.into());
5723 // If the last color we used is the same as the one we get for this line, but
5724 // the commit SHAs are different, then we try again to get a different color.
5725 match *last_used_color {
5726 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5727 let index: u32 = blame_entry.sha.into();
5728 sha_color = cx.theme().players().color_for_participant(index + 1);
5729 }
5730 _ => {}
5731 };
5732 last_used_color.replace((sha_color, blame_entry.sha));
5733
5734 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5735
5736 let short_commit_id = blame_entry.sha.display_short();
5737
5738 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5739 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5740 let details = blame.read(cx).details_for_entry(&blame_entry);
5741
5742 h_flex()
5743 .w_full()
5744 .justify_between()
5745 .font_family(style.text.font().family)
5746 .line_height(style.text.line_height)
5747 .id(("blame", ix))
5748 .text_color(cx.theme().status().hint)
5749 .pr_2()
5750 .gap_2()
5751 .child(
5752 h_flex()
5753 .items_center()
5754 .gap_2()
5755 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5756 .child(name),
5757 )
5758 .child(relative_timestamp)
5759 .on_mouse_down(MouseButton::Right, {
5760 let blame_entry = blame_entry.clone();
5761 let details = details.clone();
5762 move |event, window, cx| {
5763 deploy_blame_entry_context_menu(
5764 &blame_entry,
5765 details.as_ref(),
5766 editor.clone(),
5767 event.position,
5768 window,
5769 cx,
5770 );
5771 }
5772 })
5773 .hover(|style| style.bg(cx.theme().colors().element_hover))
5774 .when_some(
5775 details
5776 .as_ref()
5777 .and_then(|details| details.permalink.clone()),
5778 |this, url| {
5779 this.cursor_pointer().on_click(move |_, _, cx| {
5780 cx.stop_propagation();
5781 cx.open_url(url.as_str())
5782 })
5783 },
5784 )
5785 .hoverable_tooltip(move |window, cx| {
5786 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5787 .into()
5788 })
5789 .into_any()
5790}
5791
5792fn deploy_blame_entry_context_menu(
5793 blame_entry: &BlameEntry,
5794 details: Option<&ParsedCommitMessage>,
5795 editor: Entity<Editor>,
5796 position: gpui::Point<Pixels>,
5797 window: &mut Window,
5798 cx: &mut App,
5799) {
5800 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5801 let sha = format!("{}", blame_entry.sha);
5802 menu.on_blur_subscription(Subscription::new(|| {}))
5803 .entry("Copy commit SHA", None, move |_, cx| {
5804 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5805 })
5806 .when_some(
5807 details.and_then(|details| details.permalink.clone()),
5808 |this, url| {
5809 this.entry("Open permalink", None, move |_, cx| {
5810 cx.open_url(url.as_str())
5811 })
5812 },
5813 )
5814 });
5815
5816 editor.update(cx, move |editor, cx| {
5817 editor.mouse_context_menu = Some(MouseContextMenu::new(
5818 MenuPosition::PinnedToScreen(position),
5819 context_menu,
5820 window,
5821 cx,
5822 ));
5823 cx.notify();
5824 });
5825}
5826
5827#[derive(Debug)]
5828pub(crate) struct LineWithInvisibles {
5829 fragments: SmallVec<[LineFragment; 1]>,
5830 invisibles: Vec<Invisible>,
5831 len: usize,
5832 pub(crate) width: Pixels,
5833 font_size: Pixels,
5834}
5835
5836#[allow(clippy::large_enum_variant)]
5837enum LineFragment {
5838 Text(ShapedLine),
5839 Element {
5840 element: Option<AnyElement>,
5841 size: Size<Pixels>,
5842 len: usize,
5843 },
5844}
5845
5846impl fmt::Debug for LineFragment {
5847 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5848 match self {
5849 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5850 LineFragment::Element { size, len, .. } => f
5851 .debug_struct("Element")
5852 .field("size", size)
5853 .field("len", len)
5854 .finish(),
5855 }
5856 }
5857}
5858
5859impl LineWithInvisibles {
5860 fn from_chunks<'a>(
5861 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5862 editor_style: &EditorStyle,
5863 max_line_len: usize,
5864 max_line_count: usize,
5865 editor_mode: EditorMode,
5866 text_width: Pixels,
5867 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5868 window: &mut Window,
5869 cx: &mut App,
5870 ) -> Vec<Self> {
5871 let text_style = &editor_style.text;
5872 let mut layouts = Vec::with_capacity(max_line_count);
5873 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5874 let mut line = String::new();
5875 let mut invisibles = Vec::new();
5876 let mut width = Pixels::ZERO;
5877 let mut len = 0;
5878 let mut styles = Vec::new();
5879 let mut non_whitespace_added = false;
5880 let mut row = 0;
5881 let mut line_exceeded_max_len = false;
5882 let font_size = text_style.font_size.to_pixels(window.rem_size());
5883
5884 let ellipsis = SharedString::from("⋯");
5885
5886 for highlighted_chunk in chunks.chain([HighlightedChunk {
5887 text: "\n",
5888 style: None,
5889 is_tab: false,
5890 replacement: None,
5891 }]) {
5892 if let Some(replacement) = highlighted_chunk.replacement {
5893 if !line.is_empty() {
5894 let shaped_line = window
5895 .text_system()
5896 .shape_line(line.clone().into(), font_size, &styles)
5897 .unwrap();
5898 width += shaped_line.width;
5899 len += shaped_line.len;
5900 fragments.push(LineFragment::Text(shaped_line));
5901 line.clear();
5902 styles.clear();
5903 }
5904
5905 match replacement {
5906 ChunkReplacement::Renderer(renderer) => {
5907 let available_width = if renderer.constrain_width {
5908 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5909 ellipsis.clone()
5910 } else {
5911 SharedString::from(Arc::from(highlighted_chunk.text))
5912 };
5913 let shaped_line = window
5914 .text_system()
5915 .shape_line(
5916 chunk,
5917 font_size,
5918 &[text_style.to_run(highlighted_chunk.text.len())],
5919 )
5920 .unwrap();
5921 AvailableSpace::Definite(shaped_line.width)
5922 } else {
5923 AvailableSpace::MinContent
5924 };
5925
5926 let mut element = (renderer.render)(&mut ChunkRendererContext {
5927 context: cx,
5928 window,
5929 max_width: text_width,
5930 });
5931 let line_height = text_style.line_height_in_pixels(window.rem_size());
5932 let size = element.layout_as_root(
5933 size(available_width, AvailableSpace::Definite(line_height)),
5934 window,
5935 cx,
5936 );
5937
5938 width += size.width;
5939 len += highlighted_chunk.text.len();
5940 fragments.push(LineFragment::Element {
5941 element: Some(element),
5942 size,
5943 len: highlighted_chunk.text.len(),
5944 });
5945 }
5946 ChunkReplacement::Str(x) => {
5947 let text_style = if let Some(style) = highlighted_chunk.style {
5948 Cow::Owned(text_style.clone().highlight(style))
5949 } else {
5950 Cow::Borrowed(text_style)
5951 };
5952
5953 let run = TextRun {
5954 len: x.len(),
5955 font: text_style.font(),
5956 color: text_style.color,
5957 background_color: text_style.background_color,
5958 underline: text_style.underline,
5959 strikethrough: text_style.strikethrough,
5960 };
5961 let line_layout = window
5962 .text_system()
5963 .shape_line(x, font_size, &[run])
5964 .unwrap()
5965 .with_len(highlighted_chunk.text.len());
5966
5967 width += line_layout.width;
5968 len += highlighted_chunk.text.len();
5969 fragments.push(LineFragment::Text(line_layout))
5970 }
5971 }
5972 } else {
5973 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5974 if ix > 0 {
5975 let shaped_line = window
5976 .text_system()
5977 .shape_line(line.clone().into(), font_size, &styles)
5978 .unwrap();
5979 width += shaped_line.width;
5980 len += shaped_line.len;
5981 fragments.push(LineFragment::Text(shaped_line));
5982 layouts.push(Self {
5983 width: mem::take(&mut width),
5984 len: mem::take(&mut len),
5985 fragments: mem::take(&mut fragments),
5986 invisibles: std::mem::take(&mut invisibles),
5987 font_size,
5988 });
5989
5990 line.clear();
5991 styles.clear();
5992 row += 1;
5993 line_exceeded_max_len = false;
5994 non_whitespace_added = false;
5995 if row == max_line_count {
5996 return layouts;
5997 }
5998 }
5999
6000 if !line_chunk.is_empty() && !line_exceeded_max_len {
6001 let text_style = if let Some(style) = highlighted_chunk.style {
6002 Cow::Owned(text_style.clone().highlight(style))
6003 } else {
6004 Cow::Borrowed(text_style)
6005 };
6006
6007 if line.len() + line_chunk.len() > max_line_len {
6008 let mut chunk_len = max_line_len - line.len();
6009 while !line_chunk.is_char_boundary(chunk_len) {
6010 chunk_len -= 1;
6011 }
6012 line_chunk = &line_chunk[..chunk_len];
6013 line_exceeded_max_len = true;
6014 }
6015
6016 styles.push(TextRun {
6017 len: line_chunk.len(),
6018 font: text_style.font(),
6019 color: text_style.color,
6020 background_color: text_style.background_color,
6021 underline: text_style.underline,
6022 strikethrough: text_style.strikethrough,
6023 });
6024
6025 if editor_mode == EditorMode::Full {
6026 // Line wrap pads its contents with fake whitespaces,
6027 // avoid printing them
6028 let is_soft_wrapped = is_row_soft_wrapped(row);
6029 if highlighted_chunk.is_tab {
6030 if non_whitespace_added || !is_soft_wrapped {
6031 invisibles.push(Invisible::Tab {
6032 line_start_offset: line.len(),
6033 line_end_offset: line.len() + line_chunk.len(),
6034 });
6035 }
6036 } else {
6037 invisibles.extend(line_chunk.char_indices().filter_map(
6038 |(index, c)| {
6039 let is_whitespace = c.is_whitespace();
6040 non_whitespace_added |= !is_whitespace;
6041 if is_whitespace
6042 && (non_whitespace_added || !is_soft_wrapped)
6043 {
6044 Some(Invisible::Whitespace {
6045 line_offset: line.len() + index,
6046 })
6047 } else {
6048 None
6049 }
6050 },
6051 ))
6052 }
6053 }
6054
6055 line.push_str(line_chunk);
6056 }
6057 }
6058 }
6059 }
6060
6061 layouts
6062 }
6063
6064 fn prepaint(
6065 &mut self,
6066 line_height: Pixels,
6067 scroll_pixel_position: gpui::Point<Pixels>,
6068 row: DisplayRow,
6069 content_origin: gpui::Point<Pixels>,
6070 line_elements: &mut SmallVec<[AnyElement; 1]>,
6071 window: &mut Window,
6072 cx: &mut App,
6073 ) {
6074 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6075 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6076 for fragment in &mut self.fragments {
6077 match fragment {
6078 LineFragment::Text(line) => {
6079 fragment_origin.x += line.width;
6080 }
6081 LineFragment::Element { element, size, .. } => {
6082 let mut element = element
6083 .take()
6084 .expect("you can't prepaint LineWithInvisibles twice");
6085
6086 // Center the element vertically within the line.
6087 let mut element_origin = fragment_origin;
6088 element_origin.y += (line_height - size.height) / 2.;
6089 element.prepaint_at(element_origin, window, cx);
6090 line_elements.push(element);
6091
6092 fragment_origin.x += size.width;
6093 }
6094 }
6095 }
6096 }
6097
6098 fn draw(
6099 &self,
6100 layout: &EditorLayout,
6101 row: DisplayRow,
6102 content_origin: gpui::Point<Pixels>,
6103 whitespace_setting: ShowWhitespaceSetting,
6104 selection_ranges: &[Range<DisplayPoint>],
6105 window: &mut Window,
6106 cx: &mut App,
6107 ) {
6108 let line_height = layout.position_map.line_height;
6109 let line_y = line_height
6110 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6111
6112 let mut fragment_origin =
6113 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6114
6115 for fragment in &self.fragments {
6116 match fragment {
6117 LineFragment::Text(line) => {
6118 line.paint(fragment_origin, line_height, window, cx)
6119 .log_err();
6120 fragment_origin.x += line.width;
6121 }
6122 LineFragment::Element { size, .. } => {
6123 fragment_origin.x += size.width;
6124 }
6125 }
6126 }
6127
6128 self.draw_invisibles(
6129 selection_ranges,
6130 layout,
6131 content_origin,
6132 line_y,
6133 row,
6134 line_height,
6135 whitespace_setting,
6136 window,
6137 cx,
6138 );
6139 }
6140
6141 fn draw_background(
6142 &self,
6143 layout: &EditorLayout,
6144 row: DisplayRow,
6145 content_origin: gpui::Point<Pixels>,
6146 window: &mut Window,
6147 cx: &mut App,
6148 ) {
6149 let line_height = layout.position_map.line_height;
6150 let line_y = line_height
6151 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6152
6153 let mut fragment_origin =
6154 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6155
6156 for fragment in &self.fragments {
6157 match fragment {
6158 LineFragment::Text(line) => {
6159 line.paint_background(fragment_origin, line_height, window, cx)
6160 .log_err();
6161 fragment_origin.x += line.width;
6162 }
6163 LineFragment::Element { size, .. } => {
6164 fragment_origin.x += size.width;
6165 }
6166 }
6167 }
6168 }
6169
6170 fn draw_invisibles(
6171 &self,
6172 selection_ranges: &[Range<DisplayPoint>],
6173 layout: &EditorLayout,
6174 content_origin: gpui::Point<Pixels>,
6175 line_y: Pixels,
6176 row: DisplayRow,
6177 line_height: Pixels,
6178 whitespace_setting: ShowWhitespaceSetting,
6179 window: &mut Window,
6180 cx: &mut App,
6181 ) {
6182 let extract_whitespace_info = |invisible: &Invisible| {
6183 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6184 Invisible::Tab {
6185 line_start_offset,
6186 line_end_offset,
6187 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6188 Invisible::Whitespace { line_offset } => {
6189 (*line_offset, line_offset + 1, &layout.space_invisible)
6190 }
6191 };
6192
6193 let x_offset = self.x_for_index(token_offset);
6194 let invisible_offset =
6195 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6196 let origin = content_origin
6197 + gpui::point(
6198 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6199 line_y,
6200 );
6201
6202 (
6203 [token_offset, token_end_offset],
6204 Box::new(move |window: &mut Window, cx: &mut App| {
6205 invisible_symbol
6206 .paint(origin, line_height, window, cx)
6207 .log_err();
6208 }),
6209 )
6210 };
6211
6212 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6213 match whitespace_setting {
6214 ShowWhitespaceSetting::None => (),
6215 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6216 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6217 let invisible_point = DisplayPoint::new(row, start as u32);
6218 if !selection_ranges
6219 .iter()
6220 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6221 {
6222 return;
6223 }
6224
6225 paint(window, cx);
6226 }),
6227
6228 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6229 // - It is a tab
6230 // - It is adjacent to an edge (start or end)
6231 // - It is adjacent to a whitespace (left or right)
6232 ShowWhitespaceSetting::Boundary => {
6233 // 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
6234 // the above cases.
6235 // Note: We zip in the original `invisibles` to check for tab equality
6236 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6237 for (([start, end], paint), invisible) in
6238 invisible_iter.zip_eq(self.invisibles.iter())
6239 {
6240 let should_render = match (&last_seen, invisible) {
6241 (_, Invisible::Tab { .. }) => true,
6242 (Some((_, last_end, _)), _) => *last_end == start,
6243 _ => false,
6244 };
6245
6246 if should_render || start == 0 || end == self.len {
6247 paint(window, cx);
6248
6249 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6250 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6251 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6252 // Note that we need to make sure that the last one is actually adjacent
6253 if !should_render_last && last_end == start {
6254 paint_last(window, cx);
6255 }
6256 }
6257 }
6258
6259 // Manually render anything within a selection
6260 let invisible_point = DisplayPoint::new(row, start as u32);
6261 if selection_ranges.iter().any(|region| {
6262 region.start <= invisible_point && invisible_point < region.end
6263 }) {
6264 paint(window, cx);
6265 }
6266
6267 last_seen = Some((should_render, end, paint));
6268 }
6269 }
6270 }
6271 }
6272
6273 pub fn x_for_index(&self, index: usize) -> Pixels {
6274 let mut fragment_start_x = Pixels::ZERO;
6275 let mut fragment_start_index = 0;
6276
6277 for fragment in &self.fragments {
6278 match fragment {
6279 LineFragment::Text(shaped_line) => {
6280 let fragment_end_index = fragment_start_index + shaped_line.len;
6281 if index < fragment_end_index {
6282 return fragment_start_x
6283 + shaped_line.x_for_index(index - fragment_start_index);
6284 }
6285 fragment_start_x += shaped_line.width;
6286 fragment_start_index = fragment_end_index;
6287 }
6288 LineFragment::Element { len, size, .. } => {
6289 let fragment_end_index = fragment_start_index + len;
6290 if index < fragment_end_index {
6291 return fragment_start_x;
6292 }
6293 fragment_start_x += size.width;
6294 fragment_start_index = fragment_end_index;
6295 }
6296 }
6297 }
6298
6299 fragment_start_x
6300 }
6301
6302 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6303 let mut fragment_start_x = Pixels::ZERO;
6304 let mut fragment_start_index = 0;
6305
6306 for fragment in &self.fragments {
6307 match fragment {
6308 LineFragment::Text(shaped_line) => {
6309 let fragment_end_x = fragment_start_x + shaped_line.width;
6310 if x < fragment_end_x {
6311 return Some(
6312 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6313 );
6314 }
6315 fragment_start_x = fragment_end_x;
6316 fragment_start_index += shaped_line.len;
6317 }
6318 LineFragment::Element { len, size, .. } => {
6319 let fragment_end_x = fragment_start_x + size.width;
6320 if x < fragment_end_x {
6321 return Some(fragment_start_index);
6322 }
6323 fragment_start_index += len;
6324 fragment_start_x = fragment_end_x;
6325 }
6326 }
6327 }
6328
6329 None
6330 }
6331
6332 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6333 let mut fragment_start_index = 0;
6334
6335 for fragment in &self.fragments {
6336 match fragment {
6337 LineFragment::Text(shaped_line) => {
6338 let fragment_end_index = fragment_start_index + shaped_line.len;
6339 if index < fragment_end_index {
6340 return shaped_line.font_id_for_index(index - fragment_start_index);
6341 }
6342 fragment_start_index = fragment_end_index;
6343 }
6344 LineFragment::Element { len, .. } => {
6345 let fragment_end_index = fragment_start_index + len;
6346 if index < fragment_end_index {
6347 return None;
6348 }
6349 fragment_start_index = fragment_end_index;
6350 }
6351 }
6352 }
6353
6354 None
6355 }
6356}
6357
6358#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6359enum Invisible {
6360 /// A tab character
6361 ///
6362 /// A tab character is internally represented by spaces (configured by the user's tab width)
6363 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6364 /// adjacency checks.
6365 Tab {
6366 line_start_offset: usize,
6367 line_end_offset: usize,
6368 },
6369 Whitespace {
6370 line_offset: usize,
6371 },
6372}
6373
6374impl EditorElement {
6375 /// Returns the rem size to use when rendering the [`EditorElement`].
6376 ///
6377 /// This allows UI elements to scale based on the `buffer_font_size`.
6378 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6379 match self.editor.read(cx).mode {
6380 EditorMode::Full => {
6381 let buffer_font_size = self.style.text.font_size;
6382 match buffer_font_size {
6383 AbsoluteLength::Pixels(pixels) => {
6384 let rem_size_scale = {
6385 // Our default UI font size is 14px on a 16px base scale.
6386 // This means the default UI font size is 0.875rems.
6387 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6388
6389 // We then determine the delta between a single rem and the default font
6390 // size scale.
6391 let default_font_size_delta = 1. - default_font_size_scale;
6392
6393 // Finally, we add this delta to 1rem to get the scale factor that
6394 // should be used to scale up the UI.
6395 1. + default_font_size_delta
6396 };
6397
6398 Some(pixels * rem_size_scale)
6399 }
6400 AbsoluteLength::Rems(rems) => {
6401 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6402 }
6403 }
6404 }
6405 // We currently use single-line and auto-height editors in UI contexts,
6406 // so we don't want to scale everything with the buffer font size, as it
6407 // ends up looking off.
6408 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6409 }
6410 }
6411}
6412
6413impl Element for EditorElement {
6414 type RequestLayoutState = ();
6415 type PrepaintState = EditorLayout;
6416
6417 fn id(&self) -> Option<ElementId> {
6418 None
6419 }
6420
6421 fn request_layout(
6422 &mut self,
6423 _: Option<&GlobalElementId>,
6424 window: &mut Window,
6425 cx: &mut App,
6426 ) -> (gpui::LayoutId, ()) {
6427 let rem_size = self.rem_size(cx);
6428 window.with_rem_size(rem_size, |window| {
6429 self.editor.update(cx, |editor, cx| {
6430 editor.set_style(self.style.clone(), window, cx);
6431
6432 let layout_id = match editor.mode {
6433 EditorMode::SingleLine { auto_width } => {
6434 let rem_size = window.rem_size();
6435
6436 let height = self.style.text.line_height_in_pixels(rem_size);
6437 if auto_width {
6438 let editor_handle = cx.entity().clone();
6439 let style = self.style.clone();
6440 window.request_measured_layout(
6441 Style::default(),
6442 move |_, _, window, cx| {
6443 let editor_snapshot = editor_handle
6444 .update(cx, |editor, cx| editor.snapshot(window, cx));
6445 let line = Self::layout_lines(
6446 DisplayRow(0)..DisplayRow(1),
6447 &editor_snapshot,
6448 &style,
6449 px(f32::MAX),
6450 |_| false, // Single lines never soft wrap
6451 window,
6452 cx,
6453 )
6454 .pop()
6455 .unwrap();
6456
6457 let font_id =
6458 window.text_system().resolve_font(&style.text.font());
6459 let font_size =
6460 style.text.font_size.to_pixels(window.rem_size());
6461 let em_width =
6462 window.text_system().em_width(font_id, font_size).unwrap();
6463
6464 size(line.width + em_width, height)
6465 },
6466 )
6467 } else {
6468 let mut style = Style::default();
6469 style.size.height = height.into();
6470 style.size.width = relative(1.).into();
6471 window.request_layout(style, None, cx)
6472 }
6473 }
6474 EditorMode::AutoHeight { max_lines } => {
6475 let editor_handle = cx.entity().clone();
6476 let max_line_number_width =
6477 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6478 window.request_measured_layout(
6479 Style::default(),
6480 move |known_dimensions, available_space, window, cx| {
6481 editor_handle
6482 .update(cx, |editor, cx| {
6483 compute_auto_height_layout(
6484 editor,
6485 max_lines,
6486 max_line_number_width,
6487 known_dimensions,
6488 available_space.width,
6489 window,
6490 cx,
6491 )
6492 })
6493 .unwrap_or_default()
6494 },
6495 )
6496 }
6497 EditorMode::Full => {
6498 let mut style = Style::default();
6499 style.size.width = relative(1.).into();
6500 style.size.height = relative(1.).into();
6501 window.request_layout(style, None, cx)
6502 }
6503 };
6504
6505 (layout_id, ())
6506 })
6507 })
6508 }
6509
6510 fn prepaint(
6511 &mut self,
6512 _: Option<&GlobalElementId>,
6513 bounds: Bounds<Pixels>,
6514 _: &mut Self::RequestLayoutState,
6515 window: &mut Window,
6516 cx: &mut App,
6517 ) -> Self::PrepaintState {
6518 let text_style = TextStyleRefinement {
6519 font_size: Some(self.style.text.font_size),
6520 line_height: Some(self.style.text.line_height),
6521 ..Default::default()
6522 };
6523 let focus_handle = self.editor.focus_handle(cx);
6524 window.set_view_id(self.editor.entity_id());
6525 window.set_focus_handle(&focus_handle, cx);
6526
6527 let rem_size = self.rem_size(cx);
6528 window.with_rem_size(rem_size, |window| {
6529 window.with_text_style(Some(text_style), |window| {
6530 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6531 let mut snapshot = self
6532 .editor
6533 .update(cx, |editor, cx| editor.snapshot(window, cx));
6534 let style = self.style.clone();
6535
6536 let font_id = window.text_system().resolve_font(&style.text.font());
6537 let font_size = style.text.font_size.to_pixels(window.rem_size());
6538 let line_height = style.text.line_height_in_pixels(window.rem_size());
6539 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6540 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6541
6542 let glyph_grid_cell = size(em_width, line_height);
6543
6544 let gutter_dimensions = snapshot
6545 .gutter_dimensions(
6546 font_id,
6547 font_size,
6548 self.max_line_number_width(&snapshot, window, cx),
6549 cx,
6550 )
6551 .unwrap_or_default();
6552 let text_width = bounds.size.width - gutter_dimensions.width;
6553
6554 let editor_width =
6555 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6556
6557 snapshot = self.editor.update(cx, |editor, cx| {
6558 editor.last_bounds = Some(bounds);
6559 editor.gutter_dimensions = gutter_dimensions;
6560 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6561
6562 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6563 snapshot
6564 } else {
6565 let wrap_width = match editor.soft_wrap_mode(cx) {
6566 SoftWrap::GitDiff => None,
6567 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6568 SoftWrap::EditorWidth => Some(editor_width),
6569 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6570 SoftWrap::Bounded(column) => {
6571 Some(editor_width.min(column as f32 * em_advance))
6572 }
6573 };
6574
6575 if editor.set_wrap_width(wrap_width, cx) {
6576 editor.snapshot(window, cx)
6577 } else {
6578 snapshot
6579 }
6580 }
6581 });
6582
6583 let wrap_guides = self
6584 .editor
6585 .read(cx)
6586 .wrap_guides(cx)
6587 .iter()
6588 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6589 .collect::<SmallVec<[_; 2]>>();
6590
6591 let hitbox = window.insert_hitbox(bounds, false);
6592 let gutter_hitbox =
6593 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6594 let text_hitbox = window.insert_hitbox(
6595 Bounds {
6596 origin: gutter_hitbox.top_right(),
6597 size: size(text_width, bounds.size.height),
6598 },
6599 false,
6600 );
6601 // Offset the content_bounds from the text_bounds by the gutter margin (which
6602 // is roughly half a character wide) to make hit testing work more like how we want.
6603 let content_origin =
6604 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6605
6606 let scrollbar_bounds =
6607 Bounds::from_corners(content_origin, bounds.bottom_right());
6608
6609 let height_in_lines = scrollbar_bounds.size.height / line_height;
6610
6611 let max_row = snapshot.max_point().row().as_f32();
6612
6613 // The max scroll position for the top of the window
6614 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6615 (max_row - height_in_lines + 1.).max(0.)
6616 } else {
6617 let settings = EditorSettings::get_global(cx);
6618 match settings.scroll_beyond_last_line {
6619 ScrollBeyondLastLine::OnePage => max_row,
6620 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6621 ScrollBeyondLastLine::VerticalScrollMargin => {
6622 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6623 .max(0.)
6624 }
6625 }
6626 };
6627
6628 // TODO: Autoscrolling for both axes
6629 let mut autoscroll_request = None;
6630 let mut autoscroll_containing_element = false;
6631 let mut autoscroll_horizontally = false;
6632 self.editor.update(cx, |editor, cx| {
6633 autoscroll_request = editor.autoscroll_request();
6634 autoscroll_containing_element =
6635 autoscroll_request.is_some() || editor.has_pending_selection();
6636 // TODO: Is this horizontal or vertical?!
6637 autoscroll_horizontally = editor.autoscroll_vertically(
6638 bounds,
6639 line_height,
6640 max_scroll_top,
6641 window,
6642 cx,
6643 );
6644 snapshot = editor.snapshot(window, cx);
6645 });
6646
6647 let mut scroll_position = snapshot.scroll_position();
6648 // The scroll position is a fractional point, the whole number of which represents
6649 // the top of the window in terms of display rows.
6650 let start_row = DisplayRow(scroll_position.y as u32);
6651 let max_row = snapshot.max_point().row();
6652 let end_row = cmp::min(
6653 (scroll_position.y + height_in_lines).ceil() as u32,
6654 max_row.next_row().0,
6655 );
6656 let end_row = DisplayRow(end_row);
6657
6658 let row_infos = snapshot
6659 .row_infos(start_row)
6660 .take((start_row..end_row).len())
6661 .collect::<Vec<RowInfo>>();
6662 let is_row_soft_wrapped = |row: usize| {
6663 row_infos
6664 .get(row)
6665 .map_or(true, |info| info.buffer_row.is_none())
6666 };
6667
6668 let start_anchor = if start_row == Default::default() {
6669 Anchor::min()
6670 } else {
6671 snapshot.buffer_snapshot.anchor_before(
6672 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6673 )
6674 };
6675 let end_anchor = if end_row > max_row {
6676 Anchor::max()
6677 } else {
6678 snapshot.buffer_snapshot.anchor_before(
6679 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6680 )
6681 };
6682
6683 let mut highlighted_rows = self
6684 .editor
6685 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6686
6687 let is_light = cx.theme().appearance().is_light();
6688
6689 for (ix, row_info) in row_infos.iter().enumerate() {
6690 let Some(diff_status) = row_info.diff_status else {
6691 continue;
6692 };
6693
6694 let background_color = match diff_status.kind {
6695 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6696 DiffHunkStatusKind::Deleted => {
6697 cx.theme().colors().version_control_deleted
6698 }
6699 DiffHunkStatusKind::Modified => {
6700 debug_panic!("modified diff status for row info");
6701 continue;
6702 }
6703 };
6704
6705 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6706
6707 let hollow_highlight = LineHighlight {
6708 background: (background_color.opacity(if is_light {
6709 0.08
6710 } else {
6711 0.06
6712 }))
6713 .into(),
6714 border: Some(if is_light {
6715 background_color.opacity(0.48)
6716 } else {
6717 background_color.opacity(0.36)
6718 }),
6719 };
6720
6721 let filled_highlight =
6722 solid_background(background_color.opacity(hunk_opacity)).into();
6723
6724 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6725 hollow_highlight
6726 } else {
6727 filled_highlight
6728 };
6729
6730 highlighted_rows
6731 .entry(start_row + DisplayRow(ix as u32))
6732 .or_insert(background);
6733 }
6734
6735 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6736 start_anchor..end_anchor,
6737 &snapshot.display_snapshot,
6738 cx.theme().colors(),
6739 );
6740 let highlighted_gutter_ranges =
6741 self.editor.read(cx).gutter_highlights_in_range(
6742 start_anchor..end_anchor,
6743 &snapshot.display_snapshot,
6744 cx,
6745 );
6746
6747 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6748 start_anchor..end_anchor,
6749 &snapshot.display_snapshot,
6750 cx,
6751 );
6752
6753 let (local_selections, selected_buffer_ids): (
6754 Vec<Selection<Point>>,
6755 Vec<BufferId>,
6756 ) = self.editor.update(cx, |editor, cx| {
6757 let all_selections = editor.selections.all::<Point>(cx);
6758 let selected_buffer_ids = if editor.is_singleton(cx) {
6759 Vec::new()
6760 } else {
6761 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6762
6763 for selection in all_selections {
6764 for buffer_id in snapshot
6765 .buffer_snapshot
6766 .buffer_ids_for_range(selection.range())
6767 {
6768 if selected_buffer_ids.last() != Some(&buffer_id) {
6769 selected_buffer_ids.push(buffer_id);
6770 }
6771 }
6772 }
6773
6774 selected_buffer_ids
6775 };
6776
6777 let mut selections = editor
6778 .selections
6779 .disjoint_in_range(start_anchor..end_anchor, cx);
6780 selections.extend(editor.selections.pending(cx));
6781
6782 (selections, selected_buffer_ids)
6783 });
6784
6785 let (selections, mut active_rows, newest_selection_head) = self
6786 .layout_selections(
6787 start_anchor,
6788 end_anchor,
6789 &local_selections,
6790 &snapshot,
6791 start_row,
6792 end_row,
6793 window,
6794 cx,
6795 );
6796 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6797 editor.active_breakpoints(start_row..end_row, window, cx)
6798 });
6799 if cx.has_flag::<Debugger>() {
6800 for display_row in breakpoint_rows.keys() {
6801 active_rows.entry(*display_row).or_default().breakpoint = true;
6802 }
6803 }
6804
6805 let line_numbers = self.layout_line_numbers(
6806 Some(&gutter_hitbox),
6807 gutter_dimensions,
6808 line_height,
6809 scroll_position,
6810 start_row..end_row,
6811 &row_infos,
6812 &active_rows,
6813 newest_selection_head,
6814 &snapshot,
6815 window,
6816 cx,
6817 );
6818
6819 // We add the gutter breakpoint indicator to breakpoint_rows after painting
6820 // line numbers so we don't paint a line number debug accent color if a user
6821 // has their mouse over that line when a breakpoint isn't there
6822 if cx.has_flag::<Debugger>() {
6823 let gutter_breakpoint_indicator =
6824 self.editor.read(cx).gutter_breakpoint_indicator;
6825 if let Some(gutter_breakpoint_point) = gutter_breakpoint_indicator {
6826 breakpoint_rows
6827 .entry(gutter_breakpoint_point.row())
6828 .or_insert_with(|| {
6829 let position = snapshot.display_point_to_anchor(
6830 gutter_breakpoint_point,
6831 Bias::Left,
6832 );
6833 let breakpoint = Breakpoint::new_standard();
6834
6835 (position, breakpoint)
6836 });
6837 }
6838 }
6839
6840 let mut expand_toggles =
6841 window.with_element_namespace("expand_toggles", |window| {
6842 self.layout_expand_toggles(
6843 &gutter_hitbox,
6844 gutter_dimensions,
6845 em_width,
6846 line_height,
6847 scroll_position,
6848 &row_infos,
6849 window,
6850 cx,
6851 )
6852 });
6853
6854 let mut crease_toggles =
6855 window.with_element_namespace("crease_toggles", |window| {
6856 self.layout_crease_toggles(
6857 start_row..end_row,
6858 &row_infos,
6859 &active_rows,
6860 &snapshot,
6861 window,
6862 cx,
6863 )
6864 });
6865 let crease_trailers =
6866 window.with_element_namespace("crease_trailers", |window| {
6867 self.layout_crease_trailers(
6868 row_infos.iter().copied(),
6869 &snapshot,
6870 window,
6871 cx,
6872 )
6873 });
6874
6875 let display_hunks = self.layout_gutter_diff_hunks(
6876 line_height,
6877 &gutter_hitbox,
6878 start_row..end_row,
6879 &snapshot,
6880 window,
6881 cx,
6882 );
6883
6884 let mut line_layouts = Self::layout_lines(
6885 start_row..end_row,
6886 &snapshot,
6887 &self.style,
6888 editor_width,
6889 is_row_soft_wrapped,
6890 window,
6891 cx,
6892 );
6893
6894 let longest_line_blame_width = self
6895 .editor
6896 .update(cx, |editor, cx| {
6897 if !editor.show_git_blame_inline {
6898 return None;
6899 }
6900 let blame = editor.blame.as_ref()?;
6901 let blame_entry = blame
6902 .update(cx, |blame, cx| {
6903 let row_infos =
6904 snapshot.row_infos(snapshot.longest_row()).next()?;
6905 blame.blame_for_rows(&[row_infos], cx).next()
6906 })
6907 .flatten()?;
6908 let mut element = render_inline_blame_entry(
6909 self.editor.clone(),
6910 blame,
6911 blame_entry,
6912 &style,
6913 cx,
6914 );
6915 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6916 Some(
6917 element
6918 .layout_as_root(AvailableSpace::min_size(), window, cx)
6919 .width
6920 + inline_blame_padding,
6921 )
6922 })
6923 .unwrap_or(Pixels::ZERO);
6924
6925 let longest_line_width = layout_line(
6926 snapshot.longest_row(),
6927 &snapshot,
6928 &style,
6929 editor_width,
6930 is_row_soft_wrapped,
6931 window,
6932 cx,
6933 )
6934 .width;
6935
6936 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
6937 scrollbar_bounds,
6938 glyph_grid_cell,
6939 size(longest_line_width, max_row.as_f32() * line_height),
6940 longest_line_blame_width,
6941 style.scrollbar_width,
6942 editor_width,
6943 EditorSettings::get_global(cx),
6944 );
6945
6946 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
6947
6948 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6949 snapshot.sticky_header_excerpt(scroll_position.y)
6950 } else {
6951 None
6952 };
6953 let sticky_header_excerpt_id =
6954 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6955
6956 let blocks = window.with_element_namespace("blocks", |window| {
6957 self.render_blocks(
6958 start_row..end_row,
6959 &snapshot,
6960 &hitbox,
6961 &text_hitbox,
6962 editor_width,
6963 &mut scroll_width,
6964 &gutter_dimensions,
6965 em_width,
6966 gutter_dimensions.full_width(),
6967 line_height,
6968 &line_layouts,
6969 &local_selections,
6970 &selected_buffer_ids,
6971 is_row_soft_wrapped,
6972 sticky_header_excerpt_id,
6973 window,
6974 cx,
6975 )
6976 });
6977 let mut blocks = match blocks {
6978 Ok(blocks) => blocks,
6979 Err(resized_blocks) => {
6980 self.editor.update(cx, |editor, cx| {
6981 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6982 });
6983 return self.prepaint(None, bounds, &mut (), window, cx);
6984 }
6985 };
6986
6987 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6988 window.with_element_namespace("blocks", |window| {
6989 self.layout_sticky_buffer_header(
6990 sticky_header_excerpt,
6991 scroll_position.y,
6992 line_height,
6993 &snapshot,
6994 &hitbox,
6995 &selected_buffer_ids,
6996 &blocks,
6997 window,
6998 cx,
6999 )
7000 })
7001 });
7002
7003 let start_buffer_row =
7004 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7005 let end_buffer_row =
7006 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7007
7008 let scroll_max = point(
7009 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7010 max_scroll_top,
7011 );
7012
7013 self.editor.update(cx, |editor, cx| {
7014 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7015
7016 let autoscrolled = if autoscroll_horizontally {
7017 editor.autoscroll_horizontally(
7018 start_row,
7019 editor_width - (glyph_grid_cell.width / 2.0)
7020 + style.scrollbar_width,
7021 scroll_width,
7022 em_width,
7023 &line_layouts,
7024 cx,
7025 )
7026 } else {
7027 false
7028 };
7029
7030 if clamped || autoscrolled {
7031 snapshot = editor.snapshot(window, cx);
7032 scroll_position = snapshot.scroll_position();
7033 }
7034 });
7035
7036 let scroll_pixel_position = point(
7037 scroll_position.x * em_width,
7038 scroll_position.y * line_height,
7039 );
7040
7041 let indent_guides = self.layout_indent_guides(
7042 content_origin,
7043 text_hitbox.origin,
7044 start_buffer_row..end_buffer_row,
7045 scroll_pixel_position,
7046 line_height,
7047 &snapshot,
7048 window,
7049 cx,
7050 );
7051
7052 let crease_trailers =
7053 window.with_element_namespace("crease_trailers", |window| {
7054 self.prepaint_crease_trailers(
7055 crease_trailers,
7056 &line_layouts,
7057 line_height,
7058 content_origin,
7059 scroll_pixel_position,
7060 em_width,
7061 window,
7062 cx,
7063 )
7064 });
7065
7066 let (inline_completion_popover, inline_completion_popover_origin) = self
7067 .editor
7068 .update(cx, |editor, cx| {
7069 editor.render_edit_prediction_popover(
7070 &text_hitbox.bounds,
7071 content_origin,
7072 &snapshot,
7073 start_row..end_row,
7074 scroll_position.y,
7075 scroll_position.y + height_in_lines,
7076 &line_layouts,
7077 line_height,
7078 scroll_pixel_position,
7079 newest_selection_head,
7080 editor_width,
7081 &style,
7082 window,
7083 cx,
7084 )
7085 })
7086 .unzip();
7087
7088 let mut inline_diagnostics = self.layout_inline_diagnostics(
7089 &line_layouts,
7090 &crease_trailers,
7091 content_origin,
7092 scroll_pixel_position,
7093 inline_completion_popover_origin,
7094 start_row,
7095 end_row,
7096 line_height,
7097 em_width,
7098 &style,
7099 window,
7100 cx,
7101 );
7102
7103 let mut inline_blame = None;
7104 if let Some(newest_selection_head) = newest_selection_head {
7105 let display_row = newest_selection_head.row();
7106 if (start_row..end_row).contains(&display_row) {
7107 let line_ix = display_row.minus(start_row) as usize;
7108 let row_info = &row_infos[line_ix];
7109 let line_layout = &line_layouts[line_ix];
7110 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7111 inline_blame = self.layout_inline_blame(
7112 display_row,
7113 row_info,
7114 line_layout,
7115 crease_trailer_layout,
7116 em_width,
7117 content_origin,
7118 scroll_pixel_position,
7119 line_height,
7120 window,
7121 cx,
7122 );
7123 if inline_blame.is_some() {
7124 // Blame overrides inline diagnostics
7125 inline_diagnostics.remove(&display_row);
7126 }
7127 }
7128 }
7129
7130 let blamed_display_rows = self.layout_blame_entries(
7131 &row_infos,
7132 em_width,
7133 scroll_position,
7134 line_height,
7135 &gutter_hitbox,
7136 gutter_dimensions.git_blame_entries_width,
7137 window,
7138 cx,
7139 );
7140
7141 self.editor.update(cx, |editor, cx| {
7142 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7143
7144 let autoscrolled = if autoscroll_horizontally {
7145 editor.autoscroll_horizontally(
7146 start_row,
7147 editor_width - (glyph_grid_cell.width / 2.0)
7148 + style.scrollbar_width,
7149 scroll_width,
7150 em_width,
7151 &line_layouts,
7152 cx,
7153 )
7154 } else {
7155 false
7156 };
7157
7158 if clamped || autoscrolled {
7159 snapshot = editor.snapshot(window, cx);
7160 scroll_position = snapshot.scroll_position();
7161 }
7162 });
7163
7164 let line_elements = self.prepaint_lines(
7165 start_row,
7166 &mut line_layouts,
7167 line_height,
7168 scroll_pixel_position,
7169 content_origin,
7170 window,
7171 cx,
7172 );
7173
7174 let mut block_start_rows = HashSet::default();
7175
7176 window.with_element_namespace("blocks", |window| {
7177 self.layout_blocks(
7178 &mut blocks,
7179 &mut block_start_rows,
7180 &hitbox,
7181 line_height,
7182 scroll_pixel_position,
7183 window,
7184 cx,
7185 );
7186 });
7187
7188 let cursors = self.collect_cursors(&snapshot, cx);
7189 let visible_row_range = start_row..end_row;
7190 let non_visible_cursors = cursors
7191 .iter()
7192 .any(|c| !visible_row_range.contains(&c.0.row()));
7193
7194 let visible_cursors = self.layout_visible_cursors(
7195 &snapshot,
7196 &selections,
7197 &block_start_rows,
7198 start_row..end_row,
7199 &line_layouts,
7200 &text_hitbox,
7201 content_origin,
7202 scroll_position,
7203 scroll_pixel_position,
7204 line_height,
7205 em_width,
7206 em_advance,
7207 autoscroll_containing_element,
7208 window,
7209 cx,
7210 );
7211
7212 let scrollbars_layout = self.layout_scrollbars(
7213 &snapshot,
7214 scrollbar_layout_information,
7215 scroll_position,
7216 non_visible_cursors,
7217 window,
7218 cx,
7219 );
7220
7221 let gutter_settings = EditorSettings::get_global(cx).gutter;
7222
7223 let mut code_actions_indicator = None;
7224 if let Some(newest_selection_head) = newest_selection_head {
7225 let newest_selection_point =
7226 newest_selection_head.to_point(&snapshot.display_snapshot);
7227
7228 if (start_row..end_row).contains(&newest_selection_head.row()) {
7229 self.layout_cursor_popovers(
7230 line_height,
7231 &text_hitbox,
7232 content_origin,
7233 start_row,
7234 scroll_pixel_position,
7235 &line_layouts,
7236 newest_selection_head,
7237 newest_selection_point,
7238 &style,
7239 window,
7240 cx,
7241 );
7242
7243 let show_code_actions = snapshot
7244 .show_code_actions
7245 .unwrap_or(gutter_settings.code_actions);
7246 if show_code_actions {
7247 let newest_selection_point =
7248 newest_selection_head.to_point(&snapshot.display_snapshot);
7249 if !snapshot
7250 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7251 {
7252 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7253 MultiBufferRow(newest_selection_point.row),
7254 );
7255 if let Some((buffer, range)) = buffer {
7256 let buffer_id = buffer.remote_id();
7257 let row = range.start.row;
7258 let has_test_indicator = self
7259 .editor
7260 .read(cx)
7261 .tasks
7262 .contains_key(&(buffer_id, row));
7263
7264 let has_expand_indicator = row_infos
7265 .get(
7266 (newest_selection_head.row() - start_row).0
7267 as usize,
7268 )
7269 .is_some_and(|row_info| row_info.expand_info.is_some());
7270
7271 if !has_test_indicator && !has_expand_indicator {
7272 code_actions_indicator = self
7273 .layout_code_actions_indicator(
7274 line_height,
7275 newest_selection_head,
7276 scroll_pixel_position,
7277 &gutter_dimensions,
7278 &gutter_hitbox,
7279 &mut breakpoint_rows,
7280 &display_hunks,
7281 window,
7282 cx,
7283 );
7284 }
7285 }
7286 }
7287 }
7288 }
7289 }
7290
7291 self.layout_gutter_menu(
7292 line_height,
7293 &text_hitbox,
7294 content_origin,
7295 scroll_pixel_position,
7296 gutter_dimensions.width - gutter_dimensions.left_padding,
7297 window,
7298 cx,
7299 );
7300
7301 let test_indicators = if gutter_settings.runnables {
7302 self.layout_run_indicators(
7303 line_height,
7304 start_row..end_row,
7305 &row_infos,
7306 scroll_pixel_position,
7307 &gutter_dimensions,
7308 &gutter_hitbox,
7309 &display_hunks,
7310 &snapshot,
7311 &mut breakpoint_rows,
7312 window,
7313 cx,
7314 )
7315 } else {
7316 Vec::new()
7317 };
7318
7319 let show_breakpoints = snapshot
7320 .show_breakpoints
7321 .unwrap_or(gutter_settings.breakpoints);
7322 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7323 self.layout_breakpoints(
7324 line_height,
7325 start_row..end_row,
7326 scroll_pixel_position,
7327 &gutter_dimensions,
7328 &gutter_hitbox,
7329 &display_hunks,
7330 &snapshot,
7331 breakpoint_rows,
7332 &row_infos,
7333 window,
7334 cx,
7335 )
7336 } else {
7337 vec![]
7338 };
7339
7340 self.layout_signature_help(
7341 &hitbox,
7342 content_origin,
7343 scroll_pixel_position,
7344 newest_selection_head,
7345 start_row,
7346 &line_layouts,
7347 line_height,
7348 em_width,
7349 window,
7350 cx,
7351 );
7352
7353 if !cx.has_active_drag() {
7354 self.layout_hover_popovers(
7355 &snapshot,
7356 &hitbox,
7357 &text_hitbox,
7358 start_row..end_row,
7359 content_origin,
7360 scroll_pixel_position,
7361 &line_layouts,
7362 line_height,
7363 em_width,
7364 window,
7365 cx,
7366 );
7367 }
7368
7369 let mouse_context_menu = self.layout_mouse_context_menu(
7370 &snapshot,
7371 start_row..end_row,
7372 content_origin,
7373 window,
7374 cx,
7375 );
7376
7377 window.with_element_namespace("crease_toggles", |window| {
7378 self.prepaint_crease_toggles(
7379 &mut crease_toggles,
7380 line_height,
7381 &gutter_dimensions,
7382 gutter_settings,
7383 scroll_pixel_position,
7384 &gutter_hitbox,
7385 window,
7386 cx,
7387 )
7388 });
7389
7390 window.with_element_namespace("expand_toggles", |window| {
7391 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7392 });
7393
7394 let invisible_symbol_font_size = font_size / 2.;
7395 let tab_invisible = window
7396 .text_system()
7397 .shape_line(
7398 "→".into(),
7399 invisible_symbol_font_size,
7400 &[TextRun {
7401 len: "→".len(),
7402 font: self.style.text.font(),
7403 color: cx.theme().colors().editor_invisible,
7404 background_color: None,
7405 underline: None,
7406 strikethrough: None,
7407 }],
7408 )
7409 .unwrap();
7410 let space_invisible = window
7411 .text_system()
7412 .shape_line(
7413 "•".into(),
7414 invisible_symbol_font_size,
7415 &[TextRun {
7416 len: "•".len(),
7417 font: self.style.text.font(),
7418 color: cx.theme().colors().editor_invisible,
7419 background_color: None,
7420 underline: None,
7421 strikethrough: None,
7422 }],
7423 )
7424 .unwrap();
7425
7426 let mode = snapshot.mode;
7427
7428 let position_map = Rc::new(PositionMap {
7429 size: bounds.size,
7430 visible_row_range,
7431 scroll_pixel_position,
7432 scroll_max,
7433 line_layouts,
7434 line_height,
7435 em_width,
7436 em_advance,
7437 snapshot,
7438 gutter_hitbox: gutter_hitbox.clone(),
7439 text_hitbox: text_hitbox.clone(),
7440 });
7441
7442 self.editor.update(cx, |editor, _| {
7443 editor.last_position_map = Some(position_map.clone())
7444 });
7445
7446 let diff_hunk_controls = self.layout_diff_hunk_controls(
7447 start_row..end_row,
7448 &row_infos,
7449 &text_hitbox,
7450 &position_map,
7451 newest_selection_head,
7452 line_height,
7453 scroll_pixel_position,
7454 &display_hunks,
7455 self.editor.clone(),
7456 window,
7457 cx,
7458 );
7459
7460 EditorLayout {
7461 mode,
7462 position_map,
7463 visible_display_row_range: start_row..end_row,
7464 wrap_guides,
7465 indent_guides,
7466 hitbox,
7467 gutter_hitbox,
7468 display_hunks,
7469 content_origin,
7470 scrollbars_layout,
7471 active_rows,
7472 highlighted_rows,
7473 highlighted_ranges,
7474 highlighted_gutter_ranges,
7475 redacted_ranges,
7476 line_elements,
7477 line_numbers,
7478 blamed_display_rows,
7479 inline_diagnostics,
7480 inline_blame,
7481 blocks,
7482 cursors,
7483 visible_cursors,
7484 selections,
7485 inline_completion_popover,
7486 diff_hunk_controls,
7487 mouse_context_menu,
7488 test_indicators,
7489 breakpoints,
7490 code_actions_indicator,
7491 crease_toggles,
7492 crease_trailers,
7493 tab_invisible,
7494 space_invisible,
7495 sticky_buffer_header,
7496 expand_toggles,
7497 }
7498 })
7499 })
7500 })
7501 }
7502
7503 fn paint(
7504 &mut self,
7505 _: Option<&GlobalElementId>,
7506 bounds: Bounds<gpui::Pixels>,
7507 _: &mut Self::RequestLayoutState,
7508 layout: &mut Self::PrepaintState,
7509 window: &mut Window,
7510 cx: &mut App,
7511 ) {
7512 let focus_handle = self.editor.focus_handle(cx);
7513 let key_context = self
7514 .editor
7515 .update(cx, |editor, cx| editor.key_context(window, cx));
7516
7517 window.set_key_context(key_context);
7518 window.handle_input(
7519 &focus_handle,
7520 ElementInputHandler::new(bounds, self.editor.clone()),
7521 cx,
7522 );
7523 self.register_actions(window, cx);
7524 self.register_key_listeners(window, cx, layout);
7525
7526 let text_style = TextStyleRefinement {
7527 font_size: Some(self.style.text.font_size),
7528 line_height: Some(self.style.text.line_height),
7529 ..Default::default()
7530 };
7531 let rem_size = self.rem_size(cx);
7532 window.with_rem_size(rem_size, |window| {
7533 window.with_text_style(Some(text_style), |window| {
7534 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7535 self.paint_mouse_listeners(layout, window, cx);
7536 self.paint_background(layout, window, cx);
7537 self.paint_indent_guides(layout, window, cx);
7538
7539 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7540 self.paint_blamed_display_rows(layout, window, cx);
7541 self.paint_line_numbers(layout, window, cx);
7542 }
7543
7544 self.paint_text(layout, window, cx);
7545
7546 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7547 self.paint_gutter_highlights(layout, window, cx);
7548 self.paint_gutter_indicators(layout, window, cx);
7549 }
7550
7551 if !layout.blocks.is_empty() {
7552 window.with_element_namespace("blocks", |window| {
7553 self.paint_blocks(layout, window, cx);
7554 });
7555 }
7556
7557 window.with_element_namespace("blocks", |window| {
7558 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7559 sticky_header.paint(window, cx)
7560 }
7561 });
7562
7563 self.paint_scrollbars(layout, window, cx);
7564 self.paint_inline_completion_popover(layout, window, cx);
7565 self.paint_mouse_context_menu(layout, window, cx);
7566 });
7567 })
7568 })
7569 }
7570}
7571
7572pub(super) fn gutter_bounds(
7573 editor_bounds: Bounds<Pixels>,
7574 gutter_dimensions: GutterDimensions,
7575) -> Bounds<Pixels> {
7576 Bounds {
7577 origin: editor_bounds.origin,
7578 size: size(gutter_dimensions.width, editor_bounds.size.height),
7579 }
7580}
7581
7582/// Holds information required for layouting the editor scrollbars.
7583struct ScrollbarLayoutInformation {
7584 /// The bounds of the editor text area.
7585 editor_text_bounds: Bounds<Pixels>,
7586 /// The available range to scroll within the document.
7587 scroll_range: Size<Pixels>,
7588 /// The space available for one glyph in the editor.
7589 glyph_grid_cell: Size<Pixels>,
7590}
7591
7592impl ScrollbarLayoutInformation {
7593 pub fn new(
7594 scrollbar_bounds: Bounds<Pixels>,
7595 glyph_grid_cell: Size<Pixels>,
7596 document_size: Size<Pixels>,
7597 longest_line_blame_width: Pixels,
7598 scrollbar_width: Pixels,
7599 editor_width: Pixels,
7600 settings: &EditorSettings,
7601 ) -> Self {
7602 let vertical_overscroll = match settings.scroll_beyond_last_line {
7603 ScrollBeyondLastLine::OnePage => scrollbar_bounds.size.height,
7604 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7605 ScrollBeyondLastLine::VerticalScrollMargin => {
7606 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7607 }
7608 };
7609
7610 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7611 glyph_grid_cell.width + scrollbar_width
7612 } else {
7613 px(0.0)
7614 };
7615
7616 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7617
7618 let scroll_range = document_size + overscroll;
7619
7620 ScrollbarLayoutInformation {
7621 editor_text_bounds: scrollbar_bounds,
7622 scroll_range,
7623 glyph_grid_cell,
7624 }
7625 }
7626}
7627
7628impl IntoElement for EditorElement {
7629 type Element = Self;
7630
7631 fn into_element(self) -> Self::Element {
7632 self
7633 }
7634}
7635
7636pub struct EditorLayout {
7637 position_map: Rc<PositionMap>,
7638 hitbox: Hitbox,
7639 gutter_hitbox: Hitbox,
7640 content_origin: gpui::Point<Pixels>,
7641 scrollbars_layout: Option<EditorScrollbars>,
7642 mode: EditorMode,
7643 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7644 indent_guides: Option<Vec<IndentGuideLayout>>,
7645 visible_display_row_range: Range<DisplayRow>,
7646 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7647 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7648 line_elements: SmallVec<[AnyElement; 1]>,
7649 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7650 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7651 blamed_display_rows: Option<Vec<AnyElement>>,
7652 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7653 inline_blame: Option<AnyElement>,
7654 blocks: Vec<BlockLayout>,
7655 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7656 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7657 redacted_ranges: Vec<Range<DisplayPoint>>,
7658 cursors: Vec<(DisplayPoint, Hsla)>,
7659 visible_cursors: Vec<CursorLayout>,
7660 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7661 code_actions_indicator: Option<AnyElement>,
7662 test_indicators: Vec<AnyElement>,
7663 breakpoints: Vec<AnyElement>,
7664 crease_toggles: Vec<Option<AnyElement>>,
7665 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7666 diff_hunk_controls: Vec<AnyElement>,
7667 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7668 inline_completion_popover: Option<AnyElement>,
7669 mouse_context_menu: Option<AnyElement>,
7670 tab_invisible: ShapedLine,
7671 space_invisible: ShapedLine,
7672 sticky_buffer_header: Option<AnyElement>,
7673}
7674
7675impl EditorLayout {
7676 fn line_end_overshoot(&self) -> Pixels {
7677 0.15 * self.position_map.line_height
7678 }
7679}
7680
7681struct LineNumberLayout {
7682 shaped_line: ShapedLine,
7683 hitbox: Option<Hitbox>,
7684}
7685
7686struct ColoredRange<T> {
7687 start: T,
7688 end: T,
7689 color: Hsla,
7690}
7691
7692impl Along for ScrollbarAxes {
7693 type Unit = bool;
7694
7695 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7696 match axis {
7697 ScrollbarAxis::Horizontal => self.horizontal,
7698 ScrollbarAxis::Vertical => self.vertical,
7699 }
7700 }
7701
7702 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
7703 match axis {
7704 ScrollbarAxis::Horizontal => ScrollbarAxes {
7705 horizontal: f(self.horizontal),
7706 vertical: self.vertical,
7707 },
7708 ScrollbarAxis::Vertical => ScrollbarAxes {
7709 horizontal: self.horizontal,
7710 vertical: f(self.vertical),
7711 },
7712 }
7713 }
7714}
7715
7716#[derive(Clone)]
7717struct EditorScrollbars {
7718 pub vertical: Option<ScrollbarLayout>,
7719 pub horizontal: Option<ScrollbarLayout>,
7720 pub visible: bool,
7721}
7722
7723impl EditorScrollbars {
7724 pub fn from_scrollbar_axes(
7725 settings_visibility: ScrollbarAxes,
7726 layout_information: &ScrollbarLayoutInformation,
7727 scroll_position: gpui::Point<f32>,
7728 scrollbar_width: Pixels,
7729 show_scrollbars: bool,
7730 window: &mut Window,
7731 ) -> Self {
7732 let ScrollbarLayoutInformation {
7733 editor_text_bounds,
7734 scroll_range,
7735 glyph_grid_cell,
7736 } = layout_information;
7737
7738 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
7739 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
7740 Corner::BottomLeft,
7741 editor_text_bounds.bottom_left(),
7742 size(
7743 if settings_visibility.vertical {
7744 editor_text_bounds.size.width - scrollbar_width
7745 } else {
7746 editor_text_bounds.size.width
7747 },
7748 scrollbar_width,
7749 ),
7750 ),
7751 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
7752 Corner::TopRight,
7753 editor_text_bounds.top_right(),
7754 size(scrollbar_width, editor_text_bounds.size.height),
7755 ),
7756 };
7757
7758 let mut create_scrollbar_layout = |axis| {
7759 settings_visibility
7760 .along(axis)
7761 .then(|| {
7762 (
7763 editor_text_bounds.size.along(axis),
7764 scroll_range.along(axis),
7765 )
7766 })
7767 .filter(|(editor_size, scroll_range)| {
7768 // The scrollbar should only be rendered if the content does
7769 // not entirely fit into the editor
7770 // However, this only applies to the horizontal scrollbar, as information about the
7771 // vertical scrollbar layout is always needed for scrollbar diagnostics.
7772 axis != ScrollbarAxis::Horizontal || editor_size < scroll_range
7773 })
7774 .map(|(editor_size, scroll_range)| {
7775 ScrollbarLayout::new(
7776 window.insert_hitbox(scrollbar_bounds_for(axis), false),
7777 editor_size,
7778 scroll_range,
7779 glyph_grid_cell.along(axis),
7780 scroll_position.along(axis),
7781 axis,
7782 )
7783 })
7784 };
7785
7786 Self {
7787 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
7788 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
7789 visible: show_scrollbars,
7790 }
7791 }
7792
7793 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
7794 [
7795 (&self.vertical, ScrollbarAxis::Vertical),
7796 (&self.horizontal, ScrollbarAxis::Horizontal),
7797 ]
7798 .into_iter()
7799 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
7800 }
7801
7802 /// Returns the currently hovered scrollbar axis, if any.
7803 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
7804 self.iter_scrollbars()
7805 .find(|s| s.0.hitbox.is_hovered(window))
7806 }
7807}
7808
7809#[derive(Clone)]
7810struct ScrollbarLayout {
7811 hitbox: Hitbox,
7812 visible_range: Range<f32>,
7813 text_unit_size: Pixels,
7814 thumb_size: Pixels,
7815 axis: ScrollbarAxis,
7816}
7817
7818impl ScrollbarLayout {
7819 const BORDER_WIDTH: Pixels = px(1.0);
7820 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7821 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7822 const MIN_THUMB_SIZE: Pixels = px(25.0);
7823
7824 fn new(
7825 scrollbar_track_hitbox: Hitbox,
7826 editor_size: Pixels,
7827 scroll_range: Pixels,
7828 glyph_space: Pixels,
7829 scroll_position: f32,
7830 axis: ScrollbarAxis,
7831 ) -> Self {
7832 let scrollbar_track_bounds = scrollbar_track_hitbox.bounds;
7833 let scrollbar_track_length = scrollbar_track_bounds.size.along(axis);
7834
7835 let text_units_per_page = editor_size / glyph_space;
7836 let visible_range = scroll_position..scroll_position + text_units_per_page;
7837 let total_text_units = scroll_range / glyph_space;
7838
7839 let thumb_percentage = text_units_per_page / total_text_units;
7840 let thumb_size = (scrollbar_track_length * thumb_percentage)
7841 .max(ScrollbarLayout::MIN_THUMB_SIZE)
7842 .min(scrollbar_track_length);
7843 let text_unit_size = (scrollbar_track_length - thumb_size)
7844 / (total_text_units - text_units_per_page).max(0.);
7845
7846 ScrollbarLayout {
7847 hitbox: scrollbar_track_hitbox,
7848 visible_range,
7849 text_unit_size,
7850 thumb_size,
7851 axis,
7852 }
7853 }
7854
7855 fn thumb_bounds(&self) -> Bounds<Pixels> {
7856 let scrollbar_track = &self.hitbox.bounds;
7857 Bounds::new(
7858 scrollbar_track
7859 .origin
7860 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
7861 scrollbar_track
7862 .size
7863 .apply_along(self.axis, |_| self.thumb_size),
7864 )
7865 }
7866
7867 fn thumb_origin(&self, origin: Pixels) -> Pixels {
7868 origin + self.visible_range.start * self.text_unit_size
7869 }
7870
7871 fn marker_quads_for_ranges(
7872 &self,
7873 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7874 column: Option<usize>,
7875 ) -> Vec<PaintQuad> {
7876 struct MinMax {
7877 min: Pixels,
7878 max: Pixels,
7879 }
7880 let (x_range, height_limit) = if let Some(column) = column {
7881 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7882 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7883 let end = start + column_width;
7884 (
7885 Range { start, end },
7886 MinMax {
7887 min: Self::MIN_MARKER_HEIGHT,
7888 max: px(f32::MAX),
7889 },
7890 )
7891 } else {
7892 (
7893 Range {
7894 start: Self::BORDER_WIDTH,
7895 end: self.hitbox.size.width,
7896 },
7897 MinMax {
7898 min: Self::LINE_MARKER_HEIGHT,
7899 max: Self::LINE_MARKER_HEIGHT,
7900 },
7901 )
7902 };
7903
7904 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7905 let mut pixel_ranges = row_ranges
7906 .into_iter()
7907 .map(|range| {
7908 let start_y = row_to_y(range.start);
7909 let end_y = row_to_y(range.end)
7910 + self
7911 .text_unit_size
7912 .max(height_limit.min)
7913 .min(height_limit.max);
7914 ColoredRange {
7915 start: start_y,
7916 end: end_y,
7917 color: range.color,
7918 }
7919 })
7920 .peekable();
7921
7922 let mut quads = Vec::new();
7923 while let Some(mut pixel_range) = pixel_ranges.next() {
7924 while let Some(next_pixel_range) = pixel_ranges.peek() {
7925 if pixel_range.end >= next_pixel_range.start - px(1.0)
7926 && pixel_range.color == next_pixel_range.color
7927 {
7928 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7929 pixel_ranges.next();
7930 } else {
7931 break;
7932 }
7933 }
7934
7935 let bounds = Bounds::from_corners(
7936 point(x_range.start, pixel_range.start),
7937 point(x_range.end, pixel_range.end),
7938 );
7939 quads.push(quad(
7940 bounds,
7941 Corners::default(),
7942 pixel_range.color,
7943 Edges::default(),
7944 Hsla::transparent_black(),
7945 BorderStyle::default(),
7946 ));
7947 }
7948
7949 quads
7950 }
7951}
7952
7953struct CreaseTrailerLayout {
7954 element: AnyElement,
7955 bounds: Bounds<Pixels>,
7956}
7957
7958pub(crate) struct PositionMap {
7959 pub size: Size<Pixels>,
7960 pub line_height: Pixels,
7961 pub scroll_pixel_position: gpui::Point<Pixels>,
7962 pub scroll_max: gpui::Point<f32>,
7963 pub em_width: Pixels,
7964 pub em_advance: Pixels,
7965 pub visible_row_range: Range<DisplayRow>,
7966 pub line_layouts: Vec<LineWithInvisibles>,
7967 pub snapshot: EditorSnapshot,
7968 pub text_hitbox: Hitbox,
7969 pub gutter_hitbox: Hitbox,
7970}
7971
7972#[derive(Debug, Copy, Clone)]
7973pub struct PointForPosition {
7974 pub previous_valid: DisplayPoint,
7975 pub next_valid: DisplayPoint,
7976 pub exact_unclipped: DisplayPoint,
7977 pub column_overshoot_after_line_end: u32,
7978}
7979
7980impl PointForPosition {
7981 pub fn as_valid(&self) -> Option<DisplayPoint> {
7982 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7983 Some(self.previous_valid)
7984 } else {
7985 None
7986 }
7987 }
7988}
7989
7990impl PositionMap {
7991 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7992 let text_bounds = self.text_hitbox.bounds;
7993 let scroll_position = self.snapshot.scroll_position();
7994 let position = position - text_bounds.origin;
7995 let y = position.y.max(px(0.)).min(self.size.height);
7996 let x = position.x + (scroll_position.x * self.em_width);
7997 let row = ((y / self.line_height) + scroll_position.y) as u32;
7998
7999 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8000 .line_layouts
8001 .get(row as usize - scroll_position.y as usize)
8002 {
8003 if let Some(ix) = line.index_for_x(x) {
8004 (ix as u32, px(0.))
8005 } else {
8006 (line.len as u32, px(0.).max(x - line.width))
8007 }
8008 } else {
8009 (0, x)
8010 };
8011
8012 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8013 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8014 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8015
8016 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8017 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8018 PointForPosition {
8019 previous_valid,
8020 next_valid,
8021 exact_unclipped,
8022 column_overshoot_after_line_end,
8023 }
8024 }
8025}
8026
8027struct BlockLayout {
8028 id: BlockId,
8029 row: Option<DisplayRow>,
8030 element: AnyElement,
8031 available_space: Size<AvailableSpace>,
8032 style: BlockStyle,
8033 is_buffer_header: bool,
8034}
8035
8036pub fn layout_line(
8037 row: DisplayRow,
8038 snapshot: &EditorSnapshot,
8039 style: &EditorStyle,
8040 text_width: Pixels,
8041 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8042 window: &mut Window,
8043 cx: &mut App,
8044) -> LineWithInvisibles {
8045 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8046 LineWithInvisibles::from_chunks(
8047 chunks,
8048 &style,
8049 MAX_LINE_LEN,
8050 1,
8051 snapshot.mode,
8052 text_width,
8053 is_row_soft_wrapped,
8054 window,
8055 cx,
8056 )
8057 .pop()
8058 .unwrap()
8059}
8060
8061#[derive(Debug)]
8062pub struct IndentGuideLayout {
8063 origin: gpui::Point<Pixels>,
8064 length: Pixels,
8065 single_indent_width: Pixels,
8066 depth: u32,
8067 active: bool,
8068 settings: IndentGuideSettings,
8069}
8070
8071pub struct CursorLayout {
8072 origin: gpui::Point<Pixels>,
8073 block_width: Pixels,
8074 line_height: Pixels,
8075 color: Hsla,
8076 shape: CursorShape,
8077 block_text: Option<ShapedLine>,
8078 cursor_name: Option<AnyElement>,
8079}
8080
8081#[derive(Debug)]
8082pub struct CursorName {
8083 string: SharedString,
8084 color: Hsla,
8085 is_top_row: bool,
8086}
8087
8088impl CursorLayout {
8089 pub fn new(
8090 origin: gpui::Point<Pixels>,
8091 block_width: Pixels,
8092 line_height: Pixels,
8093 color: Hsla,
8094 shape: CursorShape,
8095 block_text: Option<ShapedLine>,
8096 ) -> CursorLayout {
8097 CursorLayout {
8098 origin,
8099 block_width,
8100 line_height,
8101 color,
8102 shape,
8103 block_text,
8104 cursor_name: None,
8105 }
8106 }
8107
8108 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8109 Bounds {
8110 origin: self.origin + origin,
8111 size: size(self.block_width, self.line_height),
8112 }
8113 }
8114
8115 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8116 match self.shape {
8117 CursorShape::Bar => Bounds {
8118 origin: self.origin + origin,
8119 size: size(px(2.0), self.line_height),
8120 },
8121 CursorShape::Block | CursorShape::Hollow => Bounds {
8122 origin: self.origin + origin,
8123 size: size(self.block_width, self.line_height),
8124 },
8125 CursorShape::Underline => Bounds {
8126 origin: self.origin
8127 + origin
8128 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8129 size: size(self.block_width, px(2.0)),
8130 },
8131 }
8132 }
8133
8134 pub fn layout(
8135 &mut self,
8136 origin: gpui::Point<Pixels>,
8137 cursor_name: Option<CursorName>,
8138 window: &mut Window,
8139 cx: &mut App,
8140 ) {
8141 if let Some(cursor_name) = cursor_name {
8142 let bounds = self.bounds(origin);
8143 let text_size = self.line_height / 1.5;
8144
8145 let name_origin = if cursor_name.is_top_row {
8146 point(bounds.right() - px(1.), bounds.top())
8147 } else {
8148 match self.shape {
8149 CursorShape::Bar => point(
8150 bounds.right() - px(2.),
8151 bounds.top() - text_size / 2. - px(1.),
8152 ),
8153 _ => point(
8154 bounds.right() - px(1.),
8155 bounds.top() - text_size / 2. - px(1.),
8156 ),
8157 }
8158 };
8159 let mut name_element = div()
8160 .bg(self.color)
8161 .text_size(text_size)
8162 .px_0p5()
8163 .line_height(text_size + px(2.))
8164 .text_color(cursor_name.color)
8165 .child(cursor_name.string.clone())
8166 .into_any_element();
8167
8168 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8169
8170 self.cursor_name = Some(name_element);
8171 }
8172 }
8173
8174 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8175 let bounds = self.bounds(origin);
8176
8177 //Draw background or border quad
8178 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8179 outline(bounds, self.color, BorderStyle::Solid)
8180 } else {
8181 fill(bounds, self.color)
8182 };
8183
8184 if let Some(name) = &mut self.cursor_name {
8185 name.paint(window, cx);
8186 }
8187
8188 window.paint_quad(cursor);
8189
8190 if let Some(block_text) = &self.block_text {
8191 block_text
8192 .paint(self.origin + origin, self.line_height, window, cx)
8193 .log_err();
8194 }
8195 }
8196
8197 pub fn shape(&self) -> CursorShape {
8198 self.shape
8199 }
8200}
8201
8202#[derive(Debug)]
8203pub struct HighlightedRange {
8204 pub start_y: Pixels,
8205 pub line_height: Pixels,
8206 pub lines: Vec<HighlightedRangeLine>,
8207 pub color: Hsla,
8208 pub corner_radius: Pixels,
8209}
8210
8211#[derive(Debug)]
8212pub struct HighlightedRangeLine {
8213 pub start_x: Pixels,
8214 pub end_x: Pixels,
8215}
8216
8217impl HighlightedRange {
8218 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8219 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8220 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8221 self.paint_lines(
8222 self.start_y + self.line_height,
8223 &self.lines[1..],
8224 bounds,
8225 window,
8226 );
8227 } else {
8228 self.paint_lines(self.start_y, &self.lines, bounds, window);
8229 }
8230 }
8231
8232 fn paint_lines(
8233 &self,
8234 start_y: Pixels,
8235 lines: &[HighlightedRangeLine],
8236 _bounds: Bounds<Pixels>,
8237 window: &mut Window,
8238 ) {
8239 if lines.is_empty() {
8240 return;
8241 }
8242
8243 let first_line = lines.first().unwrap();
8244 let last_line = lines.last().unwrap();
8245
8246 let first_top_left = point(first_line.start_x, start_y);
8247 let first_top_right = point(first_line.end_x, start_y);
8248
8249 let curve_height = point(Pixels::ZERO, self.corner_radius);
8250 let curve_width = |start_x: Pixels, end_x: Pixels| {
8251 let max = (end_x - start_x) / 2.;
8252 let width = if max < self.corner_radius {
8253 max
8254 } else {
8255 self.corner_radius
8256 };
8257
8258 point(width, Pixels::ZERO)
8259 };
8260
8261 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8262 let mut builder = gpui::PathBuilder::fill();
8263 builder.move_to(first_top_right - top_curve_width);
8264 builder.curve_to(first_top_right + curve_height, first_top_right);
8265
8266 let mut iter = lines.iter().enumerate().peekable();
8267 while let Some((ix, line)) = iter.next() {
8268 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8269
8270 if let Some((_, next_line)) = iter.peek() {
8271 let next_top_right = point(next_line.end_x, bottom_right.y);
8272
8273 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8274 Ordering::Equal => {
8275 builder.line_to(bottom_right);
8276 }
8277 Ordering::Less => {
8278 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8279 builder.line_to(bottom_right - curve_height);
8280 if self.corner_radius > Pixels::ZERO {
8281 builder.curve_to(bottom_right - curve_width, bottom_right);
8282 }
8283 builder.line_to(next_top_right + curve_width);
8284 if self.corner_radius > Pixels::ZERO {
8285 builder.curve_to(next_top_right + curve_height, next_top_right);
8286 }
8287 }
8288 Ordering::Greater => {
8289 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8290 builder.line_to(bottom_right - curve_height);
8291 if self.corner_radius > Pixels::ZERO {
8292 builder.curve_to(bottom_right + curve_width, bottom_right);
8293 }
8294 builder.line_to(next_top_right - curve_width);
8295 if self.corner_radius > Pixels::ZERO {
8296 builder.curve_to(next_top_right + curve_height, next_top_right);
8297 }
8298 }
8299 }
8300 } else {
8301 let curve_width = curve_width(line.start_x, line.end_x);
8302 builder.line_to(bottom_right - curve_height);
8303 if self.corner_radius > Pixels::ZERO {
8304 builder.curve_to(bottom_right - curve_width, bottom_right);
8305 }
8306
8307 let bottom_left = point(line.start_x, bottom_right.y);
8308 builder.line_to(bottom_left + curve_width);
8309 if self.corner_radius > Pixels::ZERO {
8310 builder.curve_to(bottom_left - curve_height, bottom_left);
8311 }
8312 }
8313 }
8314
8315 if first_line.start_x > last_line.start_x {
8316 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8317 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8318 builder.line_to(second_top_left + curve_height);
8319 if self.corner_radius > Pixels::ZERO {
8320 builder.curve_to(second_top_left + curve_width, second_top_left);
8321 }
8322 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8323 builder.line_to(first_bottom_left - curve_width);
8324 if self.corner_radius > Pixels::ZERO {
8325 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8326 }
8327 }
8328
8329 builder.line_to(first_top_left + curve_height);
8330 if self.corner_radius > Pixels::ZERO {
8331 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8332 }
8333 builder.line_to(first_top_right - top_curve_width);
8334
8335 if let Ok(path) = builder.build() {
8336 window.paint_path(path, self.color);
8337 }
8338 }
8339}
8340
8341enum CursorPopoverType {
8342 CodeContextMenu,
8343 EditPrediction,
8344}
8345
8346pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8347 (delta.pow(1.5) / 100.0).into()
8348}
8349
8350fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8351 (delta.pow(1.2) / 300.0).into()
8352}
8353
8354pub fn register_action<T: Action>(
8355 editor: &Entity<Editor>,
8356 window: &mut Window,
8357 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8358) {
8359 let editor = editor.clone();
8360 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8361 let action = action.downcast_ref().unwrap();
8362 if phase == DispatchPhase::Bubble {
8363 editor.update(cx, |editor, cx| {
8364 listener(editor, action, window, cx);
8365 })
8366 }
8367 })
8368}
8369
8370fn compute_auto_height_layout(
8371 editor: &mut Editor,
8372 max_lines: usize,
8373 max_line_number_width: Pixels,
8374 known_dimensions: Size<Option<Pixels>>,
8375 available_width: AvailableSpace,
8376 window: &mut Window,
8377 cx: &mut Context<Editor>,
8378) -> Option<Size<Pixels>> {
8379 let width = known_dimensions.width.or({
8380 if let AvailableSpace::Definite(available_width) = available_width {
8381 Some(available_width)
8382 } else {
8383 None
8384 }
8385 })?;
8386 if let Some(height) = known_dimensions.height {
8387 return Some(size(width, height));
8388 }
8389
8390 let style = editor.style.as_ref().unwrap();
8391 let font_id = window.text_system().resolve_font(&style.text.font());
8392 let font_size = style.text.font_size.to_pixels(window.rem_size());
8393 let line_height = style.text.line_height_in_pixels(window.rem_size());
8394 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8395
8396 let mut snapshot = editor.snapshot(window, cx);
8397 let gutter_dimensions = snapshot
8398 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8399 .unwrap_or_default();
8400
8401 editor.gutter_dimensions = gutter_dimensions;
8402 let text_width = width - gutter_dimensions.width;
8403 let overscroll = size(em_width, px(0.));
8404
8405 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8406 if editor.set_wrap_width(Some(editor_width), cx) {
8407 snapshot = editor.snapshot(window, cx);
8408 }
8409
8410 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8411 let height = scroll_height
8412 .max(line_height)
8413 .min(line_height * max_lines as f32);
8414
8415 Some(size(width, height))
8416}
8417
8418#[cfg(test)]
8419mod tests {
8420 use super::*;
8421 use crate::{
8422 display_map::{BlockPlacement, BlockProperties},
8423 editor_tests::{init_test, update_test_language_settings},
8424 Editor, MultiBuffer,
8425 };
8426 use gpui::{TestAppContext, VisualTestContext};
8427 use language::language_settings;
8428 use log::info;
8429 use std::num::NonZeroU32;
8430 use util::test::sample_text;
8431
8432 #[gpui::test]
8433 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8434 init_test(cx, |_| {});
8435 let window = cx.add_window(|window, cx| {
8436 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8437 Editor::new(EditorMode::Full, buffer, None, window, cx)
8438 });
8439
8440 let editor = window.root(cx).unwrap();
8441 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8442 let line_height = window
8443 .update(cx, |_, window, _| {
8444 style.text.line_height_in_pixels(window.rem_size())
8445 })
8446 .unwrap();
8447 let element = EditorElement::new(&editor, style);
8448 let snapshot = window
8449 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8450 .unwrap();
8451
8452 let layouts = cx
8453 .update_window(*window, |_, window, cx| {
8454 element.layout_line_numbers(
8455 None,
8456 GutterDimensions {
8457 left_padding: Pixels::ZERO,
8458 right_padding: Pixels::ZERO,
8459 width: px(30.0),
8460 margin: Pixels::ZERO,
8461 git_blame_entries_width: None,
8462 },
8463 line_height,
8464 gpui::Point::default(),
8465 DisplayRow(0)..DisplayRow(6),
8466 &(0..6)
8467 .map(|row| RowInfo {
8468 buffer_row: Some(row),
8469 ..Default::default()
8470 })
8471 .collect::<Vec<_>>(),
8472 &BTreeMap::default(),
8473 Some(DisplayPoint::new(DisplayRow(0), 0)),
8474 &snapshot,
8475 window,
8476 cx,
8477 )
8478 })
8479 .unwrap();
8480 assert_eq!(layouts.len(), 6);
8481
8482 let relative_rows = window
8483 .update(cx, |editor, window, cx| {
8484 let snapshot = editor.snapshot(window, cx);
8485 element.calculate_relative_line_numbers(
8486 &snapshot,
8487 &(DisplayRow(0)..DisplayRow(6)),
8488 Some(DisplayRow(3)),
8489 )
8490 })
8491 .unwrap();
8492 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8493 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8494 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8495 // current line has no relative number
8496 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8497 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8498
8499 // works if cursor is before screen
8500 let relative_rows = window
8501 .update(cx, |editor, window, cx| {
8502 let snapshot = editor.snapshot(window, cx);
8503 element.calculate_relative_line_numbers(
8504 &snapshot,
8505 &(DisplayRow(3)..DisplayRow(6)),
8506 Some(DisplayRow(1)),
8507 )
8508 })
8509 .unwrap();
8510 assert_eq!(relative_rows.len(), 3);
8511 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8512 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8513 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8514
8515 // works if cursor is after screen
8516 let relative_rows = window
8517 .update(cx, |editor, window, cx| {
8518 let snapshot = editor.snapshot(window, cx);
8519 element.calculate_relative_line_numbers(
8520 &snapshot,
8521 &(DisplayRow(0)..DisplayRow(3)),
8522 Some(DisplayRow(6)),
8523 )
8524 })
8525 .unwrap();
8526 assert_eq!(relative_rows.len(), 3);
8527 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8528 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8529 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8530 }
8531
8532 #[gpui::test]
8533 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8534 init_test(cx, |_| {});
8535
8536 let window = cx.add_window(|window, cx| {
8537 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8538 Editor::new(EditorMode::Full, buffer, None, window, cx)
8539 });
8540 let cx = &mut VisualTestContext::from_window(*window, cx);
8541 let editor = window.root(cx).unwrap();
8542 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8543
8544 window
8545 .update(cx, |editor, window, cx| {
8546 editor.cursor_shape = CursorShape::Block;
8547 editor.change_selections(None, window, cx, |s| {
8548 s.select_ranges([
8549 Point::new(0, 0)..Point::new(1, 0),
8550 Point::new(3, 2)..Point::new(3, 3),
8551 Point::new(5, 6)..Point::new(6, 0),
8552 ]);
8553 });
8554 })
8555 .unwrap();
8556
8557 let (_, state) = cx.draw(
8558 point(px(500.), px(500.)),
8559 size(px(500.), px(500.)),
8560 |_, _| EditorElement::new(&editor, style),
8561 );
8562
8563 assert_eq!(state.selections.len(), 1);
8564 let local_selections = &state.selections[0].1;
8565 assert_eq!(local_selections.len(), 3);
8566 // moves cursor back one line
8567 assert_eq!(
8568 local_selections[0].head,
8569 DisplayPoint::new(DisplayRow(0), 6)
8570 );
8571 assert_eq!(
8572 local_selections[0].range,
8573 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8574 );
8575
8576 // moves cursor back one column
8577 assert_eq!(
8578 local_selections[1].range,
8579 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8580 );
8581 assert_eq!(
8582 local_selections[1].head,
8583 DisplayPoint::new(DisplayRow(3), 2)
8584 );
8585
8586 // leaves cursor on the max point
8587 assert_eq!(
8588 local_selections[2].range,
8589 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8590 );
8591 assert_eq!(
8592 local_selections[2].head,
8593 DisplayPoint::new(DisplayRow(6), 0)
8594 );
8595
8596 // active lines does not include 1 (even though the range of the selection does)
8597 assert_eq!(
8598 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8599 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8600 );
8601 }
8602
8603 #[gpui::test]
8604 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8605 init_test(cx, |_| {});
8606
8607 let window = cx.add_window(|window, cx| {
8608 let buffer = MultiBuffer::build_simple("", cx);
8609 Editor::new(EditorMode::Full, buffer, None, window, cx)
8610 });
8611 let cx = &mut VisualTestContext::from_window(*window, cx);
8612 let editor = window.root(cx).unwrap();
8613 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8614 window
8615 .update(cx, |editor, window, cx| {
8616 editor.set_placeholder_text("hello", cx);
8617 editor.insert_blocks(
8618 [BlockProperties {
8619 style: BlockStyle::Fixed,
8620 placement: BlockPlacement::Above(Anchor::min()),
8621 height: 3,
8622 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8623 priority: 0,
8624 }],
8625 None,
8626 cx,
8627 );
8628
8629 // Blur the editor so that it displays placeholder text.
8630 window.blur();
8631 })
8632 .unwrap();
8633
8634 let (_, state) = cx.draw(
8635 point(px(500.), px(500.)),
8636 size(px(500.), px(500.)),
8637 |_, _| EditorElement::new(&editor, style),
8638 );
8639 assert_eq!(state.position_map.line_layouts.len(), 4);
8640 assert_eq!(state.line_numbers.len(), 1);
8641 assert_eq!(
8642 state
8643 .line_numbers
8644 .get(&MultiBufferRow(0))
8645 .map(|line_number| line_number.shaped_line.text.as_ref()),
8646 Some("1")
8647 );
8648 }
8649
8650 #[gpui::test]
8651 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8652 const TAB_SIZE: u32 = 4;
8653
8654 let input_text = "\t \t|\t| a b";
8655 let expected_invisibles = vec![
8656 Invisible::Tab {
8657 line_start_offset: 0,
8658 line_end_offset: TAB_SIZE as usize,
8659 },
8660 Invisible::Whitespace {
8661 line_offset: TAB_SIZE as usize,
8662 },
8663 Invisible::Tab {
8664 line_start_offset: TAB_SIZE as usize + 1,
8665 line_end_offset: TAB_SIZE as usize * 2,
8666 },
8667 Invisible::Tab {
8668 line_start_offset: TAB_SIZE as usize * 2 + 1,
8669 line_end_offset: TAB_SIZE as usize * 3,
8670 },
8671 Invisible::Whitespace {
8672 line_offset: TAB_SIZE as usize * 3 + 1,
8673 },
8674 Invisible::Whitespace {
8675 line_offset: TAB_SIZE as usize * 3 + 3,
8676 },
8677 ];
8678 assert_eq!(
8679 expected_invisibles.len(),
8680 input_text
8681 .chars()
8682 .filter(|initial_char| initial_char.is_whitespace())
8683 .count(),
8684 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8685 );
8686
8687 for show_line_numbers in [true, false] {
8688 init_test(cx, |s| {
8689 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8690 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8691 });
8692
8693 let actual_invisibles = collect_invisibles_from_new_editor(
8694 cx,
8695 EditorMode::Full,
8696 input_text,
8697 px(500.0),
8698 show_line_numbers,
8699 );
8700
8701 assert_eq!(expected_invisibles, actual_invisibles);
8702 }
8703 }
8704
8705 #[gpui::test]
8706 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8707 init_test(cx, |s| {
8708 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8709 s.defaults.tab_size = NonZeroU32::new(4);
8710 });
8711
8712 for editor_mode_without_invisibles in [
8713 EditorMode::SingleLine { auto_width: false },
8714 EditorMode::AutoHeight { max_lines: 100 },
8715 ] {
8716 for show_line_numbers in [true, false] {
8717 let invisibles = collect_invisibles_from_new_editor(
8718 cx,
8719 editor_mode_without_invisibles,
8720 "\t\t\t| | a b",
8721 px(500.0),
8722 show_line_numbers,
8723 );
8724 assert!(invisibles.is_empty(),
8725 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8726 }
8727 }
8728 }
8729
8730 #[gpui::test]
8731 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8732 let tab_size = 4;
8733 let input_text = "a\tbcd ".repeat(9);
8734 let repeated_invisibles = [
8735 Invisible::Tab {
8736 line_start_offset: 1,
8737 line_end_offset: tab_size as usize,
8738 },
8739 Invisible::Whitespace {
8740 line_offset: tab_size as usize + 3,
8741 },
8742 Invisible::Whitespace {
8743 line_offset: tab_size as usize + 4,
8744 },
8745 Invisible::Whitespace {
8746 line_offset: tab_size as usize + 5,
8747 },
8748 Invisible::Whitespace {
8749 line_offset: tab_size as usize + 6,
8750 },
8751 Invisible::Whitespace {
8752 line_offset: tab_size as usize + 7,
8753 },
8754 ];
8755 let expected_invisibles = std::iter::once(repeated_invisibles)
8756 .cycle()
8757 .take(9)
8758 .flatten()
8759 .collect::<Vec<_>>();
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 info!("Expected invisibles: {expected_invisibles:?}");
8769
8770 init_test(cx, |_| {});
8771
8772 // Put the same string with repeating whitespace pattern into editors of various size,
8773 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8774 let resize_step = 10.0;
8775 let mut editor_width = 200.0;
8776 while editor_width <= 1000.0 {
8777 for show_line_numbers in [true, false] {
8778 update_test_language_settings(cx, |s| {
8779 s.defaults.tab_size = NonZeroU32::new(tab_size);
8780 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8781 s.defaults.preferred_line_length = Some(editor_width as u32);
8782 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8783 });
8784
8785 let actual_invisibles = collect_invisibles_from_new_editor(
8786 cx,
8787 EditorMode::Full,
8788 &input_text,
8789 px(editor_width),
8790 show_line_numbers,
8791 );
8792
8793 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8794 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8795 let mut i = 0;
8796 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8797 i = actual_index;
8798 match expected_invisibles.get(i) {
8799 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8800 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8801 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8802 _ => {
8803 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8804 }
8805 },
8806 None => {
8807 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8808 }
8809 }
8810 }
8811 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8812 assert!(
8813 missing_expected_invisibles.is_empty(),
8814 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8815 );
8816
8817 editor_width += resize_step;
8818 }
8819 }
8820 }
8821
8822 fn collect_invisibles_from_new_editor(
8823 cx: &mut TestAppContext,
8824 editor_mode: EditorMode,
8825 input_text: &str,
8826 editor_width: Pixels,
8827 show_line_numbers: bool,
8828 ) -> Vec<Invisible> {
8829 info!(
8830 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8831 editor_width.0
8832 );
8833 let window = cx.add_window(|window, cx| {
8834 let buffer = MultiBuffer::build_simple(input_text, cx);
8835 Editor::new(editor_mode, buffer, None, window, cx)
8836 });
8837 let cx = &mut VisualTestContext::from_window(*window, cx);
8838 let editor = window.root(cx).unwrap();
8839
8840 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8841 window
8842 .update(cx, |editor, _, cx| {
8843 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8844 editor.set_wrap_width(Some(editor_width), cx);
8845 editor.set_show_line_numbers(show_line_numbers, cx);
8846 })
8847 .unwrap();
8848 let (_, state) = cx.draw(
8849 point(px(500.), px(500.)),
8850 size(px(500.), px(500.)),
8851 |_, _| EditorElement::new(&editor, style),
8852 );
8853 state
8854 .position_map
8855 .line_layouts
8856 .iter()
8857 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8858 .cloned()
8859 .collect()
8860 }
8861}
8862
8863fn diff_hunk_controls(
8864 row: u32,
8865 status: &DiffHunkStatus,
8866 hunk_range: Range<Anchor>,
8867 is_created_file: bool,
8868 line_height: Pixels,
8869 editor: &Entity<Editor>,
8870 cx: &mut App,
8871) -> AnyElement {
8872 h_flex()
8873 .h(line_height)
8874 .mr_1()
8875 .gap_1()
8876 .px_0p5()
8877 .pb_1()
8878 .border_x_1()
8879 .border_b_1()
8880 .border_color(cx.theme().colors().border_variant)
8881 .rounded_b_lg()
8882 .bg(cx.theme().colors().editor_background)
8883 .gap_1()
8884 .occlude()
8885 .shadow_md()
8886 .child(if status.has_secondary_hunk() {
8887 Button::new(("stage", row as u64), "Stage")
8888 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8889 .tooltip({
8890 let focus_handle = editor.focus_handle(cx);
8891 move |window, cx| {
8892 Tooltip::for_action_in(
8893 "Stage Hunk",
8894 &::git::ToggleStaged,
8895 &focus_handle,
8896 window,
8897 cx,
8898 )
8899 }
8900 })
8901 .on_click({
8902 let editor = editor.clone();
8903 move |_event, _window, cx| {
8904 editor.update(cx, |editor, cx| {
8905 editor.stage_or_unstage_diff_hunks(
8906 true,
8907 vec![hunk_range.start..hunk_range.start],
8908 cx,
8909 );
8910 });
8911 }
8912 })
8913 } else {
8914 Button::new(("unstage", row as u64), "Unstage")
8915 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8916 .tooltip({
8917 let focus_handle = editor.focus_handle(cx);
8918 move |window, cx| {
8919 Tooltip::for_action_in(
8920 "Unstage Hunk",
8921 &::git::ToggleStaged,
8922 &focus_handle,
8923 window,
8924 cx,
8925 )
8926 }
8927 })
8928 .on_click({
8929 let editor = editor.clone();
8930 move |_event, _window, cx| {
8931 editor.update(cx, |editor, cx| {
8932 editor.stage_or_unstage_diff_hunks(
8933 false,
8934 vec![hunk_range.start..hunk_range.start],
8935 cx,
8936 );
8937 });
8938 }
8939 })
8940 })
8941 .child(
8942 Button::new("restore", "Restore")
8943 .tooltip({
8944 let focus_handle = editor.focus_handle(cx);
8945 move |window, cx| {
8946 Tooltip::for_action_in(
8947 "Restore Hunk",
8948 &::git::Restore,
8949 &focus_handle,
8950 window,
8951 cx,
8952 )
8953 }
8954 })
8955 .on_click({
8956 let editor = editor.clone();
8957 move |_event, window, cx| {
8958 editor.update(cx, |editor, cx| {
8959 let snapshot = editor.snapshot(window, cx);
8960 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8961 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8962 });
8963 }
8964 })
8965 .disabled(is_created_file),
8966 )
8967 .when(
8968 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8969 |el| {
8970 el.child(
8971 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8972 .shape(IconButtonShape::Square)
8973 .icon_size(IconSize::Small)
8974 // .disabled(!has_multiple_hunks)
8975 .tooltip({
8976 let focus_handle = editor.focus_handle(cx);
8977 move |window, cx| {
8978 Tooltip::for_action_in(
8979 "Next Hunk",
8980 &GoToHunk,
8981 &focus_handle,
8982 window,
8983 cx,
8984 )
8985 }
8986 })
8987 .on_click({
8988 let editor = editor.clone();
8989 move |_event, window, cx| {
8990 editor.update(cx, |editor, cx| {
8991 let snapshot = editor.snapshot(window, cx);
8992 let position =
8993 hunk_range.end.to_point(&snapshot.buffer_snapshot);
8994 editor.go_to_hunk_before_or_after_position(
8995 &snapshot,
8996 position,
8997 Direction::Next,
8998 window,
8999 cx,
9000 );
9001 editor.expand_selected_diff_hunks(cx);
9002 });
9003 }
9004 }),
9005 )
9006 .child(
9007 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
9008 .shape(IconButtonShape::Square)
9009 .icon_size(IconSize::Small)
9010 // .disabled(!has_multiple_hunks)
9011 .tooltip({
9012 let focus_handle = editor.focus_handle(cx);
9013 move |window, cx| {
9014 Tooltip::for_action_in(
9015 "Previous Hunk",
9016 &GoToPreviousHunk,
9017 &focus_handle,
9018 window,
9019 cx,
9020 )
9021 }
9022 })
9023 .on_click({
9024 let editor = editor.clone();
9025 move |_event, window, cx| {
9026 editor.update(cx, |editor, cx| {
9027 let snapshot = editor.snapshot(window, cx);
9028 let point =
9029 hunk_range.start.to_point(&snapshot.buffer_snapshot);
9030 editor.go_to_hunk_before_or_after_position(
9031 &snapshot,
9032 point,
9033 Direction::Prev,
9034 window,
9035 cx,
9036 );
9037 editor.expand_selected_diff_hunks(cx);
9038 });
9039 }
9040 }),
9041 )
9042 },
9043 )
9044 .into_any_element()
9045}