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 editor.mouse_cursor_hidden = false;
898
899 if gutter_hovered {
900 let new_point = position_map
901 .point_for_position(event.position)
902 .previous_valid;
903 let buffer_anchor = position_map
904 .snapshot
905 .display_point_to_anchor(new_point, Bias::Left);
906
907 if position_map
908 .snapshot
909 .buffer_snapshot
910 .buffer_for_excerpt(buffer_anchor.excerpt_id)
911 .is_some_and(|buffer| buffer.file().is_some())
912 {
913 editor.gutter_breakpoint_indicator = Some(new_point);
914 }
915 }
916
917 cx.notify();
918
919 // Don't trigger hover popover if mouse is hovering over context menu
920 if text_hitbox.is_hovered(window) {
921 let point_for_position = position_map.point_for_position(event.position);
922
923 editor.update_hovered_link(
924 point_for_position,
925 &position_map.snapshot,
926 modifiers,
927 window,
928 cx,
929 );
930
931 if let Some(point) = point_for_position.as_valid() {
932 let anchor = position_map
933 .snapshot
934 .buffer_snapshot
935 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
936 hover_at(editor, Some(anchor), window, cx);
937 Self::update_visible_cursor(editor, point, position_map, window, cx);
938 } else {
939 hover_at(editor, None, window, cx);
940 }
941 } else {
942 editor.hide_hovered_link(cx);
943 hover_at(editor, None, window, cx);
944 if gutter_hovered {
945 cx.stop_propagation();
946 }
947 }
948 }
949
950 fn update_visible_cursor(
951 editor: &mut Editor,
952 point: DisplayPoint,
953 position_map: &PositionMap,
954 window: &mut Window,
955 cx: &mut Context<Editor>,
956 ) {
957 let snapshot = &position_map.snapshot;
958 let Some(hub) = editor.collaboration_hub() else {
959 return;
960 };
961 let start = snapshot.display_snapshot.clip_point(
962 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
963 Bias::Left,
964 );
965 let end = snapshot.display_snapshot.clip_point(
966 DisplayPoint::new(
967 point.row(),
968 (point.column() + 1).min(snapshot.line_len(point.row())),
969 ),
970 Bias::Right,
971 );
972
973 let range = snapshot
974 .buffer_snapshot
975 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
976 ..snapshot
977 .buffer_snapshot
978 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
979
980 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
981 return;
982 };
983 let key = crate::HoveredCursor {
984 replica_id: selection.replica_id,
985 selection_id: selection.selection.id,
986 };
987 editor.hovered_cursors.insert(
988 key.clone(),
989 cx.spawn_in(window, async move |editor, cx| {
990 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
991 editor
992 .update(cx, |editor, cx| {
993 editor.hovered_cursors.remove(&key);
994 cx.notify();
995 })
996 .ok();
997 }),
998 );
999 cx.notify()
1000 }
1001
1002 fn layout_selections(
1003 &self,
1004 start_anchor: Anchor,
1005 end_anchor: Anchor,
1006 local_selections: &[Selection<Point>],
1007 snapshot: &EditorSnapshot,
1008 start_row: DisplayRow,
1009 end_row: DisplayRow,
1010 window: &mut Window,
1011 cx: &mut App,
1012 ) -> (
1013 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1014 BTreeMap<DisplayRow, LineHighlightSpec>,
1015 Option<DisplayPoint>,
1016 ) {
1017 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1018 let mut active_rows = BTreeMap::new();
1019 let mut newest_selection_head = None;
1020 self.editor.update(cx, |editor, cx| {
1021 if editor.show_local_selections {
1022 let mut layouts = Vec::new();
1023 let newest = editor.selections.newest(cx);
1024 for selection in local_selections.iter().cloned() {
1025 let is_empty = selection.start == selection.end;
1026 let is_newest = selection == newest;
1027
1028 let layout = SelectionLayout::new(
1029 selection,
1030 editor.selections.line_mode,
1031 editor.cursor_shape,
1032 &snapshot.display_snapshot,
1033 is_newest,
1034 editor.leader_peer_id.is_none(),
1035 None,
1036 );
1037 if is_newest {
1038 newest_selection_head = Some(layout.head);
1039 }
1040
1041 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1042 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1043 {
1044 let contains_non_empty_selection = active_rows
1045 .entry(DisplayRow(row))
1046 .or_insert_with(LineHighlightSpec::default);
1047 contains_non_empty_selection.selection |= !is_empty;
1048 }
1049 layouts.push(layout);
1050 }
1051
1052 let player = editor.current_user_player_color(cx);
1053 selections.push((player, layouts));
1054 }
1055
1056 if let Some(collaboration_hub) = &editor.collaboration_hub {
1057 // When following someone, render the local selections in their color.
1058 if let Some(leader_id) = editor.leader_peer_id {
1059 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1060 {
1061 if let Some(participant_index) = collaboration_hub
1062 .user_participant_indices(cx)
1063 .get(&collaborator.user_id)
1064 {
1065 if let Some((local_selection_style, _)) = selections.first_mut() {
1066 *local_selection_style = cx
1067 .theme()
1068 .players()
1069 .color_for_participant(participant_index.0);
1070 }
1071 }
1072 }
1073 }
1074
1075 let mut remote_selections = HashMap::default();
1076 for selection in snapshot.remote_selections_in_range(
1077 &(start_anchor..end_anchor),
1078 collaboration_hub.as_ref(),
1079 cx,
1080 ) {
1081 let selection_style =
1082 Self::get_participant_color(selection.participant_index, cx);
1083
1084 // Don't re-render the leader's selections, since the local selections
1085 // match theirs.
1086 if Some(selection.peer_id) == editor.leader_peer_id {
1087 continue;
1088 }
1089 let key = HoveredCursor {
1090 replica_id: selection.replica_id,
1091 selection_id: selection.selection.id,
1092 };
1093
1094 let is_shown =
1095 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1096
1097 remote_selections
1098 .entry(selection.replica_id)
1099 .or_insert((selection_style, Vec::new()))
1100 .1
1101 .push(SelectionLayout::new(
1102 selection.selection,
1103 selection.line_mode,
1104 selection.cursor_shape,
1105 &snapshot.display_snapshot,
1106 false,
1107 false,
1108 if is_shown { selection.user_name } else { None },
1109 ));
1110 }
1111
1112 selections.extend(remote_selections.into_values());
1113 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1114 let layouts = snapshot
1115 .buffer_snapshot
1116 .selections_in_range(&(start_anchor..end_anchor), true)
1117 .map(move |(_, line_mode, cursor_shape, selection)| {
1118 SelectionLayout::new(
1119 selection,
1120 line_mode,
1121 cursor_shape,
1122 &snapshot.display_snapshot,
1123 false,
1124 false,
1125 None,
1126 )
1127 })
1128 .collect::<Vec<_>>();
1129 let player = editor.current_user_player_color(cx);
1130 selections.push((player, layouts));
1131 }
1132 });
1133 (selections, active_rows, newest_selection_head)
1134 }
1135
1136 fn collect_cursors(
1137 &self,
1138 snapshot: &EditorSnapshot,
1139 cx: &mut App,
1140 ) -> Vec<(DisplayPoint, Hsla)> {
1141 let editor = self.editor.read(cx);
1142 let mut cursors = Vec::new();
1143 let mut skip_local = false;
1144 let mut add_cursor = |anchor: Anchor, color| {
1145 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1146 };
1147 // Remote cursors
1148 if let Some(collaboration_hub) = &editor.collaboration_hub {
1149 for remote_selection in snapshot.remote_selections_in_range(
1150 &(Anchor::min()..Anchor::max()),
1151 collaboration_hub.deref(),
1152 cx,
1153 ) {
1154 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1155 add_cursor(remote_selection.selection.head(), color.cursor);
1156 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1157 skip_local = true;
1158 }
1159 }
1160 }
1161 // Local cursors
1162 if !skip_local {
1163 let color = cx.theme().players().local().cursor;
1164 editor.selections.disjoint.iter().for_each(|selection| {
1165 add_cursor(selection.head(), color);
1166 });
1167 if let Some(ref selection) = editor.selections.pending_anchor() {
1168 add_cursor(selection.head(), color);
1169 }
1170 }
1171 cursors
1172 }
1173
1174 fn layout_visible_cursors(
1175 &self,
1176 snapshot: &EditorSnapshot,
1177 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1178 block_start_rows: &HashSet<DisplayRow>,
1179 visible_display_row_range: Range<DisplayRow>,
1180 line_layouts: &[LineWithInvisibles],
1181 text_hitbox: &Hitbox,
1182 content_origin: gpui::Point<Pixels>,
1183 scroll_position: gpui::Point<f32>,
1184 scroll_pixel_position: gpui::Point<Pixels>,
1185 line_height: Pixels,
1186 em_width: Pixels,
1187 em_advance: Pixels,
1188 autoscroll_containing_element: bool,
1189 window: &mut Window,
1190 cx: &mut App,
1191 ) -> Vec<CursorLayout> {
1192 let mut autoscroll_bounds = None;
1193 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1194 let mut cursors = Vec::new();
1195
1196 let show_local_cursors = editor.show_local_cursors(window, cx);
1197
1198 for (player_color, selections) in selections {
1199 for selection in selections {
1200 let cursor_position = selection.head;
1201
1202 let in_range = visible_display_row_range.contains(&cursor_position.row());
1203 if (selection.is_local && !show_local_cursors)
1204 || !in_range
1205 || block_start_rows.contains(&cursor_position.row())
1206 {
1207 continue;
1208 }
1209
1210 let cursor_row_layout = &line_layouts
1211 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1212 let cursor_column = cursor_position.column() as usize;
1213
1214 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1215 let mut block_width =
1216 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1217 if block_width == Pixels::ZERO {
1218 block_width = em_advance;
1219 }
1220 let block_text = if let CursorShape::Block = selection.cursor_shape {
1221 snapshot
1222 .grapheme_at(cursor_position)
1223 .or_else(|| {
1224 if cursor_column == 0 {
1225 snapshot.placeholder_text().and_then(|s| {
1226 s.graphemes(true).next().map(|s| s.to_string().into())
1227 })
1228 } else {
1229 None
1230 }
1231 })
1232 .and_then(|text| {
1233 let len = text.len();
1234
1235 let font = cursor_row_layout
1236 .font_id_for_index(cursor_column)
1237 .and_then(|cursor_font_id| {
1238 window.text_system().get_font_for_id(cursor_font_id)
1239 })
1240 .unwrap_or(self.style.text.font());
1241
1242 // Invert the text color for the block cursor. Ensure that the text
1243 // color is opaque enough to be visible against the background color.
1244 //
1245 // 0.75 is an arbitrary threshold to determine if the background color is
1246 // opaque enough to use as a text color.
1247 //
1248 // TODO: In the future we should ensure themes have a `text_inverse` color.
1249 let color = if cx.theme().colors().editor_background.a < 0.75 {
1250 match cx.theme().appearance {
1251 Appearance::Dark => Hsla::black(),
1252 Appearance::Light => Hsla::white(),
1253 }
1254 } else {
1255 cx.theme().colors().editor_background
1256 };
1257
1258 window
1259 .text_system()
1260 .shape_line(
1261 text,
1262 cursor_row_layout.font_size,
1263 &[TextRun {
1264 len,
1265 font,
1266 color,
1267 background_color: None,
1268 strikethrough: None,
1269 underline: None,
1270 }],
1271 )
1272 .log_err()
1273 })
1274 } else {
1275 None
1276 };
1277
1278 let x = cursor_character_x - scroll_pixel_position.x;
1279 let y = (cursor_position.row().as_f32()
1280 - scroll_pixel_position.y / line_height)
1281 * line_height;
1282 if selection.is_newest {
1283 editor.pixel_position_of_newest_cursor = Some(point(
1284 text_hitbox.origin.x + x + block_width / 2.,
1285 text_hitbox.origin.y + y + line_height / 2.,
1286 ));
1287
1288 if autoscroll_containing_element {
1289 let top = text_hitbox.origin.y
1290 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1291 * line_height;
1292 let left = text_hitbox.origin.x
1293 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1294 .max(0.)
1295 * em_width;
1296
1297 let bottom = text_hitbox.origin.y
1298 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1299 * line_height;
1300 let right = text_hitbox.origin.x
1301 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1302 * em_width;
1303
1304 autoscroll_bounds =
1305 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1306 }
1307 }
1308
1309 let mut cursor = CursorLayout {
1310 color: player_color.cursor,
1311 block_width,
1312 origin: point(x, y),
1313 line_height,
1314 shape: selection.cursor_shape,
1315 block_text,
1316 cursor_name: None,
1317 };
1318 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1319 string: name,
1320 color: self.style.background,
1321 is_top_row: cursor_position.row().0 == 0,
1322 });
1323 cursor.layout(content_origin, cursor_name, window, cx);
1324 cursors.push(cursor);
1325 }
1326 }
1327
1328 cursors
1329 });
1330
1331 if let Some(bounds) = autoscroll_bounds {
1332 window.request_autoscroll(bounds);
1333 }
1334
1335 cursor_layouts
1336 }
1337
1338 fn layout_scrollbars(
1339 &self,
1340 snapshot: &EditorSnapshot,
1341 scrollbar_range_data: ScrollbarLayoutInformation,
1342 scroll_position: gpui::Point<f32>,
1343 non_visible_cursors: bool,
1344 window: &mut Window,
1345 cx: &mut App,
1346 ) -> Option<EditorScrollbars> {
1347 if snapshot.mode != EditorMode::Full {
1348 return None;
1349 }
1350
1351 // If a drag took place after we started dragging the scrollbar,
1352 // cancel the scrollbar drag.
1353 if cx.has_active_drag() {
1354 self.editor.update(cx, |editor, cx| {
1355 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1356 });
1357 }
1358
1359 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1360 let show_scrollbars = self.editor.read(cx).show_scrollbars
1361 && match scrollbar_settings.show {
1362 ShowScrollbar::Auto => {
1363 let editor = self.editor.read(cx);
1364 let is_singleton = editor.is_singleton(cx);
1365 // Git
1366 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1367 ||
1368 // Buffer Search Results
1369 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1370 ||
1371 // Selected Text Occurrences
1372 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1373 ||
1374 // Selected Symbol Occurrences
1375 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1376 ||
1377 // Diagnostics
1378 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1379 ||
1380 // Cursors out of sight
1381 non_visible_cursors
1382 ||
1383 // Scrollmanager
1384 editor.scroll_manager.scrollbars_visible()
1385 }
1386 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1387 ShowScrollbar::Always => true,
1388 ShowScrollbar::Never => return None,
1389 };
1390
1391 Some(EditorScrollbars::from_scrollbar_axes(
1392 scrollbar_settings.axes,
1393 &scrollbar_range_data,
1394 scroll_position,
1395 self.style.scrollbar_width,
1396 show_scrollbars,
1397 window,
1398 ))
1399 }
1400
1401 fn prepaint_crease_toggles(
1402 &self,
1403 crease_toggles: &mut [Option<AnyElement>],
1404 line_height: Pixels,
1405 gutter_dimensions: &GutterDimensions,
1406 gutter_settings: crate::editor_settings::Gutter,
1407 scroll_pixel_position: gpui::Point<Pixels>,
1408 gutter_hitbox: &Hitbox,
1409 window: &mut Window,
1410 cx: &mut App,
1411 ) {
1412 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1413 if let Some(crease_toggle) = crease_toggle {
1414 debug_assert!(gutter_settings.folds);
1415 let available_space = size(
1416 AvailableSpace::MinContent,
1417 AvailableSpace::Definite(line_height * 0.55),
1418 );
1419 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1420
1421 let position = point(
1422 gutter_dimensions.width - gutter_dimensions.right_padding,
1423 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1424 );
1425 let centering_offset = point(
1426 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1427 (line_height - crease_toggle_size.height) / 2.,
1428 );
1429 let origin = gutter_hitbox.origin + position + centering_offset;
1430 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1431 }
1432 }
1433 }
1434
1435 fn prepaint_expand_toggles(
1436 &self,
1437 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1438 window: &mut Window,
1439 cx: &mut App,
1440 ) {
1441 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1442 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1443 expand_toggle.layout_as_root(available_space, window, cx);
1444 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1445 }
1446 }
1447
1448 fn prepaint_crease_trailers(
1449 &self,
1450 trailers: Vec<Option<AnyElement>>,
1451 lines: &[LineWithInvisibles],
1452 line_height: Pixels,
1453 content_origin: gpui::Point<Pixels>,
1454 scroll_pixel_position: gpui::Point<Pixels>,
1455 em_width: Pixels,
1456 window: &mut Window,
1457 cx: &mut App,
1458 ) -> Vec<Option<CreaseTrailerLayout>> {
1459 trailers
1460 .into_iter()
1461 .enumerate()
1462 .map(|(ix, element)| {
1463 let mut element = element?;
1464 let available_space = size(
1465 AvailableSpace::MinContent,
1466 AvailableSpace::Definite(line_height),
1467 );
1468 let size = element.layout_as_root(available_space, window, cx);
1469
1470 let line = &lines[ix];
1471 let padding = if line.width == Pixels::ZERO {
1472 Pixels::ZERO
1473 } else {
1474 4. * em_width
1475 };
1476 let position = point(
1477 scroll_pixel_position.x + line.width + padding,
1478 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1479 );
1480 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1481 let origin = content_origin + position + centering_offset;
1482 element.prepaint_as_root(origin, available_space, window, cx);
1483 Some(CreaseTrailerLayout {
1484 element,
1485 bounds: Bounds::new(origin, size),
1486 })
1487 })
1488 .collect()
1489 }
1490
1491 // Folds contained in a hunk are ignored apart from shrinking visual size
1492 // If a fold contains any hunks then that fold line is marked as modified
1493 fn layout_gutter_diff_hunks(
1494 &self,
1495 line_height: Pixels,
1496 gutter_hitbox: &Hitbox,
1497 display_rows: Range<DisplayRow>,
1498 snapshot: &EditorSnapshot,
1499 window: &mut Window,
1500 cx: &mut App,
1501 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1502 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1503 let mut display_hunks = snapshot
1504 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1505 .map(|hunk| (hunk, None))
1506 .collect::<Vec<_>>();
1507 let git_gutter_setting = ProjectSettings::get_global(cx)
1508 .git
1509 .git_gutter
1510 .unwrap_or_default();
1511 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1512 for (hunk, hitbox) in &mut display_hunks {
1513 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1514 let hunk_bounds =
1515 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1516 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1517 }
1518 }
1519 }
1520
1521 display_hunks
1522 }
1523
1524 fn layout_inline_diagnostics(
1525 &self,
1526 line_layouts: &[LineWithInvisibles],
1527 crease_trailers: &[Option<CreaseTrailerLayout>],
1528 content_origin: gpui::Point<Pixels>,
1529 scroll_pixel_position: gpui::Point<Pixels>,
1530 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1531 start_row: DisplayRow,
1532 end_row: DisplayRow,
1533 line_height: Pixels,
1534 em_width: Pixels,
1535 style: &EditorStyle,
1536 window: &mut Window,
1537 cx: &mut App,
1538 ) -> HashMap<DisplayRow, AnyElement> {
1539 let max_severity = ProjectSettings::get_global(cx)
1540 .diagnostics
1541 .inline
1542 .max_severity
1543 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1544 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1545 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1546 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1547 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1548 });
1549
1550 let active_diagnostics_group = self
1551 .editor
1552 .read(cx)
1553 .active_diagnostics
1554 .as_ref()
1555 .map(|active_diagnostics| active_diagnostics.group_id);
1556
1557 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1558 let snapshot = editor.snapshot(window, cx);
1559 editor
1560 .inline_diagnostics
1561 .iter()
1562 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1563 .filter(|(_, diagnostic)| match active_diagnostics_group {
1564 Some(active_diagnostics_group) => {
1565 // Active diagnostics are all shown in the editor already, no need to display them inline
1566 diagnostic.group_id != active_diagnostics_group
1567 }
1568 None => true,
1569 })
1570 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1571 .skip_while(|(point, _)| point.row() < start_row)
1572 .take_while(|(point, _)| point.row() < end_row)
1573 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1574 acc.entry(point.row())
1575 .or_insert_with(Vec::new)
1576 .push(diagnostic);
1577 acc
1578 })
1579 });
1580
1581 if diagnostics_by_rows.is_empty() {
1582 return HashMap::default();
1583 }
1584
1585 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1586 &DiagnosticSeverity::ERROR => Color::Error,
1587 &DiagnosticSeverity::WARNING => Color::Warning,
1588 &DiagnosticSeverity::INFORMATION => Color::Info,
1589 &DiagnosticSeverity::HINT => Color::Hint,
1590 _ => Color::Error,
1591 };
1592
1593 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1594 let min_x = ProjectSettings::get_global(cx)
1595 .diagnostics
1596 .inline
1597 .min_column as f32
1598 * em_width;
1599
1600 let mut elements = HashMap::default();
1601 for (row, mut diagnostics) in diagnostics_by_rows {
1602 diagnostics.sort_by_key(|diagnostic| {
1603 (
1604 diagnostic.severity,
1605 std::cmp::Reverse(diagnostic.is_primary),
1606 diagnostic.start.row,
1607 diagnostic.start.column,
1608 )
1609 });
1610
1611 let Some(diagnostic_to_render) = diagnostics
1612 .iter()
1613 .find(|diagnostic| diagnostic.is_primary)
1614 .or_else(|| diagnostics.first())
1615 else {
1616 continue;
1617 };
1618
1619 let pos_y = content_origin.y
1620 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1621
1622 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1623 let pos_x = {
1624 let crease_trailer_layout = &crease_trailers[window_ix];
1625 let line_layout = &line_layouts[window_ix];
1626
1627 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1628 crease_trailer.bounds.right()
1629 } else {
1630 content_origin.x - scroll_pixel_position.x + line_layout.width
1631 };
1632
1633 let padded_line = line_end + padding;
1634 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1635
1636 cmp::max(padded_line, min_start)
1637 };
1638
1639 let behind_inline_completion_popover = inline_completion_popover_origin
1640 .as_ref()
1641 .map_or(false, |inline_completion_popover_origin| {
1642 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1643 });
1644 let opacity = if behind_inline_completion_popover {
1645 0.5
1646 } else {
1647 1.0
1648 };
1649
1650 let mut element = h_flex()
1651 .id(("diagnostic", row.0))
1652 .h(line_height)
1653 .w_full()
1654 .px_1()
1655 .rounded_xs()
1656 .opacity(opacity)
1657 .bg(severity_to_color(&diagnostic_to_render.severity)
1658 .color(cx)
1659 .opacity(0.05))
1660 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1661 .text_sm()
1662 .font_family(style.text.font().family)
1663 .child(diagnostic_to_render.message.clone())
1664 .into_any();
1665
1666 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1667
1668 elements.insert(row, element);
1669 }
1670
1671 elements
1672 }
1673
1674 fn layout_inline_blame(
1675 &self,
1676 display_row: DisplayRow,
1677 row_info: &RowInfo,
1678 line_layout: &LineWithInvisibles,
1679 crease_trailer: Option<&CreaseTrailerLayout>,
1680 em_width: Pixels,
1681 content_origin: gpui::Point<Pixels>,
1682 scroll_pixel_position: gpui::Point<Pixels>,
1683 line_height: Pixels,
1684 window: &mut Window,
1685 cx: &mut App,
1686 ) -> Option<AnyElement> {
1687 if !self
1688 .editor
1689 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1690 {
1691 return None;
1692 }
1693
1694 let editor = self.editor.read(cx);
1695 let blame = editor.blame.clone()?;
1696 let padding = {
1697 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1698 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1699
1700 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1701
1702 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1703 match &inline_completion.completion {
1704 InlineCompletion::Edit {
1705 display_mode: EditDisplayMode::TabAccept,
1706 ..
1707 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1708 _ => {}
1709 }
1710 }
1711
1712 padding * em_width
1713 };
1714
1715 let blame_entry = blame
1716 .update(cx, |blame, cx| {
1717 blame.blame_for_rows(&[*row_info], cx).next()
1718 })
1719 .flatten()?;
1720
1721 let mut element =
1722 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1723
1724 let start_y = content_origin.y
1725 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1726
1727 let start_x = {
1728 let line_end = if let Some(crease_trailer) = crease_trailer {
1729 crease_trailer.bounds.right()
1730 } else {
1731 content_origin.x - scroll_pixel_position.x + line_layout.width
1732 };
1733
1734 let padded_line_end = line_end + padding;
1735
1736 let min_column_in_pixels = ProjectSettings::get_global(cx)
1737 .git
1738 .inline_blame
1739 .and_then(|settings| settings.min_column)
1740 .map(|col| self.column_pixels(col as usize, window, cx))
1741 .unwrap_or(px(0.));
1742 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1743
1744 cmp::max(padded_line_end, min_start)
1745 };
1746
1747 let absolute_offset = point(start_x, start_y);
1748 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1749
1750 Some(element)
1751 }
1752
1753 fn layout_blame_entries(
1754 &self,
1755 buffer_rows: &[RowInfo],
1756 em_width: Pixels,
1757 scroll_position: gpui::Point<f32>,
1758 line_height: Pixels,
1759 gutter_hitbox: &Hitbox,
1760 max_width: Option<Pixels>,
1761 window: &mut Window,
1762 cx: &mut App,
1763 ) -> Option<Vec<AnyElement>> {
1764 if !self
1765 .editor
1766 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1767 {
1768 return None;
1769 }
1770
1771 let blame = self.editor.read(cx).blame.clone()?;
1772 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1773 blame.blame_for_rows(buffer_rows, cx).collect()
1774 });
1775
1776 let width = if let Some(max_width) = max_width {
1777 AvailableSpace::Definite(max_width)
1778 } else {
1779 AvailableSpace::MaxContent
1780 };
1781 let scroll_top = scroll_position.y * line_height;
1782 let start_x = em_width;
1783
1784 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1785
1786 let shaped_lines = blamed_rows
1787 .into_iter()
1788 .enumerate()
1789 .flat_map(|(ix, blame_entry)| {
1790 if let Some(blame_entry) = blame_entry {
1791 let mut element = render_blame_entry(
1792 ix,
1793 &blame,
1794 blame_entry,
1795 &self.style,
1796 &mut last_used_color,
1797 self.editor.clone(),
1798 cx,
1799 );
1800
1801 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1802 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1803
1804 element.prepaint_as_root(
1805 absolute_offset,
1806 size(width, AvailableSpace::MinContent),
1807 window,
1808 cx,
1809 );
1810
1811 Some(element)
1812 } else {
1813 None
1814 }
1815 })
1816 .collect();
1817
1818 Some(shaped_lines)
1819 }
1820
1821 fn layout_indent_guides(
1822 &self,
1823 content_origin: gpui::Point<Pixels>,
1824 text_origin: gpui::Point<Pixels>,
1825 visible_buffer_range: Range<MultiBufferRow>,
1826 scroll_pixel_position: gpui::Point<Pixels>,
1827 line_height: Pixels,
1828 snapshot: &DisplaySnapshot,
1829 window: &mut Window,
1830 cx: &mut App,
1831 ) -> Option<Vec<IndentGuideLayout>> {
1832 let indent_guides = self.editor.update(cx, |editor, cx| {
1833 editor.indent_guides(visible_buffer_range, snapshot, cx)
1834 })?;
1835
1836 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1837 editor
1838 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1839 .unwrap_or_default()
1840 });
1841
1842 Some(
1843 indent_guides
1844 .into_iter()
1845 .enumerate()
1846 .filter_map(|(i, indent_guide)| {
1847 let single_indent_width =
1848 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1849 let total_width = single_indent_width * indent_guide.depth as f32;
1850 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1851 if start_x >= text_origin.x {
1852 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1853 indent_guide.start_row..indent_guide.end_row,
1854 line_height,
1855 snapshot,
1856 );
1857
1858 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1859
1860 Some(IndentGuideLayout {
1861 origin: point(start_x, start_y),
1862 length,
1863 single_indent_width,
1864 depth: indent_guide.depth,
1865 active: active_indent_guide_indices.contains(&i),
1866 settings: indent_guide.settings,
1867 })
1868 } else {
1869 None
1870 }
1871 })
1872 .collect(),
1873 )
1874 }
1875
1876 fn calculate_indent_guide_bounds(
1877 row_range: Range<MultiBufferRow>,
1878 line_height: Pixels,
1879 snapshot: &DisplaySnapshot,
1880 ) -> (gpui::Pixels, gpui::Pixels) {
1881 let start_point = Point::new(row_range.start.0, 0);
1882 let end_point = Point::new(row_range.end.0, 0);
1883
1884 let row_range = start_point.to_display_point(snapshot).row()
1885 ..end_point.to_display_point(snapshot).row();
1886
1887 let mut prev_line = start_point;
1888 prev_line.row = prev_line.row.saturating_sub(1);
1889 let prev_line = prev_line.to_display_point(snapshot).row();
1890
1891 let mut cons_line = end_point;
1892 cons_line.row += 1;
1893 let cons_line = cons_line.to_display_point(snapshot).row();
1894
1895 let mut offset_y = row_range.start.0 as f32 * line_height;
1896 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1897
1898 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1899 if row_range.end == cons_line {
1900 length += line_height;
1901 }
1902
1903 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1904 // we want to extend the indent guide to the start of the block.
1905 let mut block_height = 0;
1906 let mut block_offset = 0;
1907 let mut found_excerpt_header = false;
1908 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1909 if matches!(block, Block::ExcerptBoundary { .. }) {
1910 found_excerpt_header = true;
1911 break;
1912 }
1913 block_offset += block.height();
1914 block_height += block.height();
1915 }
1916 if !found_excerpt_header {
1917 offset_y -= block_offset as f32 * line_height;
1918 length += block_height as f32 * line_height;
1919 }
1920
1921 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1922 // we want to ensure that the indent guide stops before the excerpt header.
1923 let mut block_height = 0;
1924 let mut found_excerpt_header = false;
1925 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1926 if matches!(block, Block::ExcerptBoundary { .. }) {
1927 found_excerpt_header = true;
1928 }
1929 block_height += block.height();
1930 }
1931 if found_excerpt_header {
1932 length -= block_height as f32 * line_height;
1933 }
1934
1935 (offset_y, length)
1936 }
1937
1938 fn layout_breakpoints(
1939 &self,
1940 line_height: Pixels,
1941 range: Range<DisplayRow>,
1942 scroll_pixel_position: gpui::Point<Pixels>,
1943 gutter_dimensions: &GutterDimensions,
1944 gutter_hitbox: &Hitbox,
1945 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
1946 snapshot: &EditorSnapshot,
1947 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
1948 row_infos: &[RowInfo],
1949 window: &mut Window,
1950 cx: &mut App,
1951 ) -> Vec<AnyElement> {
1952 self.editor.update(cx, |editor, cx| {
1953 breakpoints
1954 .into_iter()
1955 .filter_map(|(display_row, (text_anchor, bp))| {
1956 if row_infos
1957 .get((display_row.0.saturating_sub(range.start.0)) as usize)
1958 .is_some_and(|row_info| row_info.expand_info.is_some())
1959 {
1960 return None;
1961 }
1962
1963 if range.start > display_row || range.end < display_row {
1964 return None;
1965 }
1966
1967 let row =
1968 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
1969 if snapshot.is_line_folded(row) {
1970 return None;
1971 }
1972
1973 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
1974
1975 let button = prepaint_gutter_button(
1976 button,
1977 display_row,
1978 line_height,
1979 gutter_dimensions,
1980 scroll_pixel_position,
1981 gutter_hitbox,
1982 display_hunks,
1983 window,
1984 cx,
1985 );
1986 Some(button)
1987 })
1988 .collect_vec()
1989 })
1990 }
1991
1992 #[allow(clippy::too_many_arguments)]
1993 fn layout_run_indicators(
1994 &self,
1995 line_height: Pixels,
1996 range: Range<DisplayRow>,
1997 row_infos: &[RowInfo],
1998 scroll_pixel_position: gpui::Point<Pixels>,
1999 gutter_dimensions: &GutterDimensions,
2000 gutter_hitbox: &Hitbox,
2001 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2002 snapshot: &EditorSnapshot,
2003 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2004 window: &mut Window,
2005 cx: &mut App,
2006 ) -> Vec<AnyElement> {
2007 self.editor.update(cx, |editor, cx| {
2008 let active_task_indicator_row =
2009 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2010 deployed_from_indicator,
2011 actions,
2012 ..
2013 })) = editor.context_menu.borrow().as_ref()
2014 {
2015 actions
2016 .tasks
2017 .as_ref()
2018 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2019 .or(*deployed_from_indicator)
2020 } else {
2021 None
2022 };
2023
2024 let offset_range_start =
2025 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2026
2027 let offset_range_end =
2028 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2029
2030 editor
2031 .tasks
2032 .iter()
2033 .filter_map(|(_, tasks)| {
2034 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2035 if multibuffer_point < offset_range_start
2036 || multibuffer_point > offset_range_end
2037 {
2038 return None;
2039 }
2040 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2041 let buffer_folded = snapshot
2042 .buffer_snapshot
2043 .buffer_line_for_row(multibuffer_row)
2044 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2045 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2046 .unwrap_or(false);
2047 if buffer_folded {
2048 return None;
2049 }
2050
2051 if snapshot.is_line_folded(multibuffer_row) {
2052 // Skip folded indicators, unless it's the starting line of a fold.
2053 if multibuffer_row
2054 .0
2055 .checked_sub(1)
2056 .map_or(false, |previous_row| {
2057 snapshot.is_line_folded(MultiBufferRow(previous_row))
2058 })
2059 {
2060 return None;
2061 }
2062 }
2063
2064 let display_row = multibuffer_point.to_display_point(snapshot).row();
2065 if row_infos
2066 .get((display_row - range.start).0 as usize)
2067 .is_some_and(|row_info| row_info.expand_info.is_some())
2068 {
2069 return None;
2070 }
2071
2072 let button = editor.render_run_indicator(
2073 &self.style,
2074 Some(display_row) == active_task_indicator_row,
2075 display_row,
2076 breakpoints.remove(&display_row),
2077 cx,
2078 );
2079
2080 let button = prepaint_gutter_button(
2081 button,
2082 display_row,
2083 line_height,
2084 gutter_dimensions,
2085 scroll_pixel_position,
2086 gutter_hitbox,
2087 display_hunks,
2088 window,
2089 cx,
2090 );
2091 Some(button)
2092 })
2093 .collect_vec()
2094 })
2095 }
2096
2097 fn layout_expand_toggles(
2098 &self,
2099 gutter_hitbox: &Hitbox,
2100 gutter_dimensions: GutterDimensions,
2101 em_width: Pixels,
2102 line_height: Pixels,
2103 scroll_position: gpui::Point<f32>,
2104 buffer_rows: &[RowInfo],
2105 window: &mut Window,
2106 cx: &mut App,
2107 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2108 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2109
2110 let scroll_top = scroll_position.y * line_height;
2111
2112 let max_line_number_length = self
2113 .editor
2114 .read(cx)
2115 .buffer()
2116 .read(cx)
2117 .snapshot(cx)
2118 .widest_line_number()
2119 .ilog10()
2120 + 1;
2121
2122 let elements = buffer_rows
2123 .into_iter()
2124 .enumerate()
2125 .map(|(ix, row_info)| {
2126 let ExpandInfo {
2127 excerpt_id,
2128 direction,
2129 } = row_info.expand_info?;
2130
2131 let icon_name = match direction {
2132 ExpandExcerptDirection::Up => IconName::ExpandUp,
2133 ExpandExcerptDirection::Down => IconName::ExpandDown,
2134 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2135 };
2136
2137 let git_gutter_width = Self::gutter_strip_width(line_height);
2138 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2139
2140 let editor = self.editor.clone();
2141 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2142 && row_info
2143 .buffer_row
2144 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2145 || gutter_dimensions.right_padding == px(0.);
2146
2147 let width = if is_wide {
2148 available_width - px(2.)
2149 } else {
2150 available_width + em_width - px(2.)
2151 };
2152
2153 let toggle = IconButton::new(("expand", ix), icon_name)
2154 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2155 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2156 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2157 .width(width.into())
2158 .on_click(move |_, window, cx| {
2159 editor.update(cx, |editor, cx| {
2160 editor.expand_excerpt(excerpt_id, direction, window, cx);
2161 });
2162 })
2163 .tooltip(Tooltip::for_action_title(
2164 "Expand Excerpt",
2165 &crate::actions::ExpandExcerpts::default(),
2166 ))
2167 .into_any_element();
2168
2169 let position = point(
2170 git_gutter_width + px(1.),
2171 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2172 );
2173 let origin = gutter_hitbox.origin + position;
2174
2175 Some((toggle, origin))
2176 })
2177 .collect();
2178
2179 elements
2180 }
2181
2182 fn layout_code_actions_indicator(
2183 &self,
2184 line_height: Pixels,
2185 newest_selection_head: DisplayPoint,
2186 scroll_pixel_position: gpui::Point<Pixels>,
2187 gutter_dimensions: &GutterDimensions,
2188 gutter_hitbox: &Hitbox,
2189 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2190 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2191 window: &mut Window,
2192 cx: &mut App,
2193 ) -> Option<AnyElement> {
2194 let mut active = false;
2195 let mut button = None;
2196 let row = newest_selection_head.row();
2197 self.editor.update(cx, |editor, cx| {
2198 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2199 deployed_from_indicator,
2200 ..
2201 })) = editor.context_menu.borrow().as_ref()
2202 {
2203 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2204 };
2205
2206 let breakpoint = breakpoint_points.get(&row);
2207 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2208 });
2209
2210 let button = button?;
2211 breakpoint_points.remove(&row);
2212
2213 let button = prepaint_gutter_button(
2214 button,
2215 row,
2216 line_height,
2217 gutter_dimensions,
2218 scroll_pixel_position,
2219 gutter_hitbox,
2220 display_hunks,
2221 window,
2222 cx,
2223 );
2224
2225 Some(button)
2226 }
2227
2228 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2229 if let Some(index) = participant_index {
2230 cx.theme().players().color_for_participant(index.0)
2231 } else {
2232 cx.theme().players().absent()
2233 }
2234 }
2235
2236 fn calculate_relative_line_numbers(
2237 &self,
2238 snapshot: &EditorSnapshot,
2239 rows: &Range<DisplayRow>,
2240 relative_to: Option<DisplayRow>,
2241 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2242 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2243 let Some(relative_to) = relative_to else {
2244 return relative_rows;
2245 };
2246
2247 let start = rows.start.min(relative_to);
2248 let end = rows.end.max(relative_to);
2249
2250 let buffer_rows = snapshot
2251 .row_infos(start)
2252 .take(1 + end.minus(start) as usize)
2253 .collect::<Vec<_>>();
2254
2255 let head_idx = relative_to.minus(start);
2256 let mut delta = 1;
2257 let mut i = head_idx + 1;
2258 while i < buffer_rows.len() as u32 {
2259 if buffer_rows[i as usize].buffer_row.is_some() {
2260 if rows.contains(&DisplayRow(i + start.0)) {
2261 relative_rows.insert(DisplayRow(i + start.0), delta);
2262 }
2263 delta += 1;
2264 }
2265 i += 1;
2266 }
2267 delta = 1;
2268 i = head_idx.min(buffer_rows.len() as u32 - 1);
2269 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2270 i -= 1;
2271 }
2272
2273 while i > 0 {
2274 i -= 1;
2275 if buffer_rows[i as usize].buffer_row.is_some() {
2276 if rows.contains(&DisplayRow(i + start.0)) {
2277 relative_rows.insert(DisplayRow(i + start.0), delta);
2278 }
2279 delta += 1;
2280 }
2281 }
2282
2283 relative_rows
2284 }
2285
2286 fn layout_line_numbers(
2287 &self,
2288 gutter_hitbox: Option<&Hitbox>,
2289 gutter_dimensions: GutterDimensions,
2290 line_height: Pixels,
2291 scroll_position: gpui::Point<f32>,
2292 rows: Range<DisplayRow>,
2293 buffer_rows: &[RowInfo],
2294 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2295 newest_selection_head: Option<DisplayPoint>,
2296 snapshot: &EditorSnapshot,
2297 window: &mut Window,
2298 cx: &mut App,
2299 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2300 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2301 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2302 });
2303 if !include_line_numbers {
2304 return Arc::default();
2305 }
2306
2307 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2308 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2309 let newest = editor.selections.newest::<Point>(cx);
2310 SelectionLayout::new(
2311 newest,
2312 editor.selections.line_mode,
2313 editor.cursor_shape,
2314 &snapshot.display_snapshot,
2315 true,
2316 true,
2317 None,
2318 )
2319 .head
2320 });
2321 let is_relative = editor.should_use_relative_line_numbers(cx);
2322 (newest_selection_head, is_relative)
2323 });
2324
2325 let relative_to = if is_relative {
2326 Some(newest_selection_head.row())
2327 } else {
2328 None
2329 };
2330 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2331 let mut line_number = String::new();
2332 let line_numbers = buffer_rows
2333 .into_iter()
2334 .enumerate()
2335 .flat_map(|(ix, row_info)| {
2336 let display_row = DisplayRow(rows.start.0 + ix as u32);
2337 line_number.clear();
2338 let non_relative_number = row_info.buffer_row? + 1;
2339 let number = relative_rows
2340 .get(&display_row)
2341 .unwrap_or(&non_relative_number);
2342 write!(&mut line_number, "{number}").unwrap();
2343 if row_info
2344 .diff_status
2345 .is_some_and(|status| status.is_deleted())
2346 {
2347 return None;
2348 }
2349
2350 let color = active_rows
2351 .get(&display_row)
2352 .and_then(|spec| {
2353 if spec.breakpoint {
2354 Some(cx.theme().colors().debugger_accent)
2355 } else if spec.selection {
2356 Some(cx.theme().colors().editor_active_line_number)
2357 } else {
2358 None
2359 }
2360 })
2361 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2362 let shaped_line = self
2363 .shape_line_number(SharedString::from(&line_number), color, window)
2364 .log_err()?;
2365 let scroll_top = scroll_position.y * line_height;
2366 let line_origin = gutter_hitbox.map(|hitbox| {
2367 hitbox.origin
2368 + point(
2369 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2370 ix as f32 * line_height - (scroll_top % line_height),
2371 )
2372 });
2373
2374 #[cfg(not(test))]
2375 let hitbox = line_origin.map(|line_origin| {
2376 window.insert_hitbox(
2377 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2378 false,
2379 )
2380 });
2381 #[cfg(test)]
2382 let hitbox = {
2383 let _ = line_origin;
2384 None
2385 };
2386
2387 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2388 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2389 let line_number = LineNumberLayout {
2390 shaped_line,
2391 hitbox,
2392 };
2393 Some((multi_buffer_row, line_number))
2394 })
2395 .collect();
2396 Arc::new(line_numbers)
2397 }
2398
2399 fn layout_crease_toggles(
2400 &self,
2401 rows: Range<DisplayRow>,
2402 row_infos: &[RowInfo],
2403 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2404 snapshot: &EditorSnapshot,
2405 window: &mut Window,
2406 cx: &mut App,
2407 ) -> Vec<Option<AnyElement>> {
2408 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2409 && snapshot.mode == EditorMode::Full
2410 && self.editor.read(cx).is_singleton(cx);
2411 if include_fold_statuses {
2412 row_infos
2413 .into_iter()
2414 .enumerate()
2415 .map(|(ix, info)| {
2416 if info.expand_info.is_some() {
2417 return None;
2418 }
2419 let row = info.multibuffer_row?;
2420 let display_row = DisplayRow(rows.start.0 + ix as u32);
2421 let active = active_rows.contains_key(&display_row);
2422
2423 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2424 })
2425 .collect()
2426 } else {
2427 Vec::new()
2428 }
2429 }
2430
2431 fn layout_crease_trailers(
2432 &self,
2433 buffer_rows: impl IntoIterator<Item = RowInfo>,
2434 snapshot: &EditorSnapshot,
2435 window: &mut Window,
2436 cx: &mut App,
2437 ) -> Vec<Option<AnyElement>> {
2438 buffer_rows
2439 .into_iter()
2440 .map(|row_info| {
2441 if row_info.expand_info.is_some() {
2442 return None;
2443 }
2444 if let Some(row) = row_info.multibuffer_row {
2445 snapshot.render_crease_trailer(row, window, cx)
2446 } else {
2447 None
2448 }
2449 })
2450 .collect()
2451 }
2452
2453 fn layout_lines(
2454 rows: Range<DisplayRow>,
2455 snapshot: &EditorSnapshot,
2456 style: &EditorStyle,
2457 editor_width: Pixels,
2458 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2459 window: &mut Window,
2460 cx: &mut App,
2461 ) -> Vec<LineWithInvisibles> {
2462 if rows.start >= rows.end {
2463 return Vec::new();
2464 }
2465
2466 // Show the placeholder when the editor is empty
2467 if snapshot.is_empty() {
2468 let font_size = style.text.font_size.to_pixels(window.rem_size());
2469 let placeholder_color = cx.theme().colors().text_placeholder;
2470 let placeholder_text = snapshot.placeholder_text();
2471
2472 let placeholder_lines = placeholder_text
2473 .as_ref()
2474 .map_or("", AsRef::as_ref)
2475 .split('\n')
2476 .skip(rows.start.0 as usize)
2477 .chain(iter::repeat(""))
2478 .take(rows.len());
2479 placeholder_lines
2480 .filter_map(move |line| {
2481 let run = TextRun {
2482 len: line.len(),
2483 font: style.text.font(),
2484 color: placeholder_color,
2485 background_color: None,
2486 underline: Default::default(),
2487 strikethrough: None,
2488 };
2489 window
2490 .text_system()
2491 .shape_line(line.to_string().into(), font_size, &[run])
2492 .log_err()
2493 })
2494 .map(|line| LineWithInvisibles {
2495 width: line.width,
2496 len: line.len,
2497 fragments: smallvec![LineFragment::Text(line)],
2498 invisibles: Vec::new(),
2499 font_size,
2500 })
2501 .collect()
2502 } else {
2503 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2504 LineWithInvisibles::from_chunks(
2505 chunks,
2506 &style,
2507 MAX_LINE_LEN,
2508 rows.len(),
2509 snapshot.mode,
2510 editor_width,
2511 is_row_soft_wrapped,
2512 window,
2513 cx,
2514 )
2515 }
2516 }
2517
2518 fn prepaint_lines(
2519 &self,
2520 start_row: DisplayRow,
2521 line_layouts: &mut [LineWithInvisibles],
2522 line_height: Pixels,
2523 scroll_pixel_position: gpui::Point<Pixels>,
2524 content_origin: gpui::Point<Pixels>,
2525 window: &mut Window,
2526 cx: &mut App,
2527 ) -> SmallVec<[AnyElement; 1]> {
2528 let mut line_elements = SmallVec::new();
2529 for (ix, line) in line_layouts.iter_mut().enumerate() {
2530 let row = start_row + DisplayRow(ix as u32);
2531 line.prepaint(
2532 line_height,
2533 scroll_pixel_position,
2534 row,
2535 content_origin,
2536 &mut line_elements,
2537 window,
2538 cx,
2539 );
2540 }
2541 line_elements
2542 }
2543
2544 fn render_block(
2545 &self,
2546 block: &Block,
2547 available_width: AvailableSpace,
2548 block_id: BlockId,
2549 block_row_start: DisplayRow,
2550 snapshot: &EditorSnapshot,
2551 text_x: Pixels,
2552 rows: &Range<DisplayRow>,
2553 line_layouts: &[LineWithInvisibles],
2554 gutter_dimensions: &GutterDimensions,
2555 line_height: Pixels,
2556 em_width: Pixels,
2557 text_hitbox: &Hitbox,
2558 editor_width: Pixels,
2559 scroll_width: &mut Pixels,
2560 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2561 selections: &[Selection<Point>],
2562 selected_buffer_ids: &Vec<BufferId>,
2563 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2564 sticky_header_excerpt_id: Option<ExcerptId>,
2565 window: &mut Window,
2566 cx: &mut App,
2567 ) -> (AnyElement, Size<Pixels>) {
2568 let mut element = match block {
2569 Block::Custom(block) => {
2570 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2571 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2572 let align_to = block_start.to_display_point(snapshot);
2573 let anchor_x = text_x
2574 + if rows.contains(&align_to.row()) {
2575 line_layouts[align_to.row().minus(rows.start) as usize]
2576 .x_for_index(align_to.column() as usize)
2577 } else {
2578 layout_line(
2579 align_to.row(),
2580 snapshot,
2581 &self.style,
2582 editor_width,
2583 is_row_soft_wrapped,
2584 window,
2585 cx,
2586 )
2587 .x_for_index(align_to.column() as usize)
2588 };
2589
2590 let selected = selections
2591 .binary_search_by(|selection| {
2592 if selection.end <= block_start {
2593 Ordering::Less
2594 } else if selection.start >= block_end {
2595 Ordering::Greater
2596 } else {
2597 Ordering::Equal
2598 }
2599 })
2600 .is_ok();
2601
2602 div()
2603 .size_full()
2604 .child(block.render(&mut BlockContext {
2605 window,
2606 app: cx,
2607 anchor_x,
2608 gutter_dimensions,
2609 line_height,
2610 em_width,
2611 block_id,
2612 selected,
2613 max_width: text_hitbox.size.width.max(*scroll_width),
2614 editor_style: &self.style,
2615 }))
2616 .into_any()
2617 }
2618
2619 Block::FoldedBuffer {
2620 first_excerpt,
2621 height,
2622 ..
2623 } => {
2624 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2625 let result = v_flex().id(block_id).w_full();
2626
2627 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2628 result
2629 .child(self.render_buffer_header(
2630 first_excerpt,
2631 true,
2632 selected,
2633 false,
2634 jump_data,
2635 window,
2636 cx,
2637 ))
2638 .into_any_element()
2639 }
2640
2641 Block::ExcerptBoundary {
2642 excerpt,
2643 height,
2644 starts_new_buffer,
2645 ..
2646 } => {
2647 let color = cx.theme().colors().clone();
2648 let mut result = v_flex().id(block_id).w_full();
2649
2650 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2651
2652 if *starts_new_buffer {
2653 if sticky_header_excerpt_id != Some(excerpt.id) {
2654 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2655
2656 result = result.child(self.render_buffer_header(
2657 excerpt, false, selected, false, jump_data, window, cx,
2658 ));
2659 } else {
2660 result =
2661 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2662 }
2663 } else {
2664 result = result.child(
2665 h_flex().relative().child(
2666 div()
2667 .top(line_height / 2.)
2668 .absolute()
2669 .w_full()
2670 .h_px()
2671 .bg(color.border_variant),
2672 ),
2673 );
2674 };
2675
2676 result.into_any()
2677 }
2678 };
2679
2680 // Discover the element's content height, then round up to the nearest multiple of line height.
2681 let preliminary_size = element.layout_as_root(
2682 size(available_width, AvailableSpace::MinContent),
2683 window,
2684 cx,
2685 );
2686 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2687 let final_size = if preliminary_size.height == quantized_height {
2688 preliminary_size
2689 } else {
2690 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2691 };
2692
2693 if let BlockId::Custom(custom_block_id) = block_id {
2694 if block.height() > 0 {
2695 let element_height_in_lines =
2696 ((final_size.height / line_height).ceil() as u32).max(1);
2697 if element_height_in_lines != block.height() {
2698 resized_blocks.insert(custom_block_id, element_height_in_lines);
2699 }
2700 }
2701 }
2702
2703 (element, final_size)
2704 }
2705
2706 fn render_buffer_header(
2707 &self,
2708 for_excerpt: &ExcerptInfo,
2709 is_folded: bool,
2710 is_selected: bool,
2711 is_sticky: bool,
2712 jump_data: JumpData,
2713 window: &mut Window,
2714 cx: &mut App,
2715 ) -> Div {
2716 let editor = self.editor.read(cx);
2717 let file_status = editor
2718 .buffer
2719 .read(cx)
2720 .all_diff_hunks_expanded()
2721 .then(|| {
2722 editor
2723 .project
2724 .as_ref()?
2725 .read(cx)
2726 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2727 })
2728 .flatten();
2729
2730 let include_root = editor
2731 .project
2732 .as_ref()
2733 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2734 .unwrap_or_default();
2735 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2736 let filename = path
2737 .as_ref()
2738 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2739 let parent_path = path.as_ref().and_then(|path| {
2740 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2741 });
2742 let focus_handle = editor.focus_handle(cx);
2743 let colors = cx.theme().colors();
2744
2745 div()
2746 .p_1()
2747 .w_full()
2748 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2749 .child(
2750 h_flex()
2751 .size_full()
2752 .gap_2()
2753 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2754 .pl_0p5()
2755 .pr_5()
2756 .rounded_sm()
2757 .when(is_sticky, |el| el.shadow_md())
2758 .border_1()
2759 .map(|div| {
2760 let border_color = if is_selected
2761 && is_folded
2762 && focus_handle.contains_focused(window, cx)
2763 {
2764 colors.border_focused
2765 } else {
2766 colors.border
2767 };
2768 div.border_color(border_color)
2769 })
2770 .bg(colors.editor_subheader_background)
2771 .hover(|style| style.bg(colors.element_hover))
2772 .map(|header| {
2773 let editor = self.editor.clone();
2774 let buffer_id = for_excerpt.buffer_id;
2775 let toggle_chevron_icon =
2776 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2777 header.child(
2778 div()
2779 .hover(|style| style.bg(colors.element_selected))
2780 .rounded_xs()
2781 .child(
2782 ButtonLike::new("toggle-buffer-fold")
2783 .style(ui::ButtonStyle::Transparent)
2784 .height(px(28.).into())
2785 .width(px(28.).into())
2786 .children(toggle_chevron_icon)
2787 .tooltip({
2788 let focus_handle = focus_handle.clone();
2789 move |window, cx| {
2790 Tooltip::for_action_in(
2791 "Toggle Excerpt Fold",
2792 &ToggleFold,
2793 &focus_handle,
2794 window,
2795 cx,
2796 )
2797 }
2798 })
2799 .on_click(move |_, _, cx| {
2800 if is_folded {
2801 editor.update(cx, |editor, cx| {
2802 editor.unfold_buffer(buffer_id, cx);
2803 });
2804 } else {
2805 editor.update(cx, |editor, cx| {
2806 editor.fold_buffer(buffer_id, cx);
2807 });
2808 }
2809 }),
2810 ),
2811 )
2812 })
2813 .children(
2814 editor
2815 .addons
2816 .values()
2817 .filter_map(|addon| {
2818 addon.render_buffer_header_controls(for_excerpt, window, cx)
2819 })
2820 .take(1),
2821 )
2822 .child(
2823 h_flex()
2824 .cursor_pointer()
2825 .id("path header block")
2826 .size_full()
2827 .justify_between()
2828 .child(
2829 h_flex()
2830 .gap_2()
2831 .child(
2832 Label::new(
2833 filename
2834 .map(SharedString::from)
2835 .unwrap_or_else(|| "untitled".into()),
2836 )
2837 .single_line()
2838 .when_some(
2839 file_status,
2840 |el, status| {
2841 el.color(if status.is_conflicted() {
2842 Color::Conflict
2843 } else if status.is_modified() {
2844 Color::Modified
2845 } else if status.is_deleted() {
2846 Color::Disabled
2847 } else {
2848 Color::Created
2849 })
2850 .when(status.is_deleted(), |el| el.strikethrough())
2851 },
2852 ),
2853 )
2854 .when_some(parent_path, |then, path| {
2855 then.child(div().child(path).text_color(
2856 if file_status.is_some_and(FileStatus::is_deleted) {
2857 colors.text_disabled
2858 } else {
2859 colors.text_muted
2860 },
2861 ))
2862 }),
2863 )
2864 .when(is_selected, |el| {
2865 el.child(
2866 h_flex()
2867 .id("jump-to-file-button")
2868 .gap_2p5()
2869 .child(Label::new("Jump To File"))
2870 .children(
2871 KeyBinding::for_action_in(
2872 &OpenExcerpts,
2873 &focus_handle,
2874 window,
2875 cx,
2876 )
2877 .map(|binding| binding.into_any_element()),
2878 ),
2879 )
2880 })
2881 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2882 .on_click(window.listener_for(&self.editor, {
2883 move |editor, e: &ClickEvent, window, cx| {
2884 editor.open_excerpts_common(
2885 Some(jump_data.clone()),
2886 e.down.modifiers.secondary(),
2887 window,
2888 cx,
2889 );
2890 }
2891 })),
2892 ),
2893 )
2894 }
2895
2896 fn render_blocks(
2897 &self,
2898 rows: Range<DisplayRow>,
2899 snapshot: &EditorSnapshot,
2900 hitbox: &Hitbox,
2901 text_hitbox: &Hitbox,
2902 editor_width: Pixels,
2903 scroll_width: &mut Pixels,
2904 gutter_dimensions: &GutterDimensions,
2905 em_width: Pixels,
2906 text_x: Pixels,
2907 line_height: Pixels,
2908 line_layouts: &[LineWithInvisibles],
2909 selections: &[Selection<Point>],
2910 selected_buffer_ids: &Vec<BufferId>,
2911 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2912 sticky_header_excerpt_id: Option<ExcerptId>,
2913 window: &mut Window,
2914 cx: &mut App,
2915 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2916 let (fixed_blocks, non_fixed_blocks) = snapshot
2917 .blocks_in_range(rows.clone())
2918 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2919
2920 let mut focused_block = self
2921 .editor
2922 .update(cx, |editor, _| editor.take_focused_block());
2923 let mut fixed_block_max_width = Pixels::ZERO;
2924 let mut blocks = Vec::new();
2925 let mut resized_blocks = HashMap::default();
2926
2927 for (row, block) in fixed_blocks {
2928 let block_id = block.id();
2929
2930 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2931 focused_block = None;
2932 }
2933
2934 let (element, element_size) = self.render_block(
2935 block,
2936 AvailableSpace::MinContent,
2937 block_id,
2938 row,
2939 snapshot,
2940 text_x,
2941 &rows,
2942 line_layouts,
2943 gutter_dimensions,
2944 line_height,
2945 em_width,
2946 text_hitbox,
2947 editor_width,
2948 scroll_width,
2949 &mut resized_blocks,
2950 selections,
2951 selected_buffer_ids,
2952 is_row_soft_wrapped,
2953 sticky_header_excerpt_id,
2954 window,
2955 cx,
2956 );
2957 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2958 blocks.push(BlockLayout {
2959 id: block_id,
2960 row: Some(row),
2961 element,
2962 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2963 style: BlockStyle::Fixed,
2964 is_buffer_header: block.is_buffer_header(),
2965 });
2966 }
2967
2968 for (row, block) in non_fixed_blocks {
2969 let style = block.style();
2970 let width = match style {
2971 BlockStyle::Sticky => hitbox.size.width,
2972 BlockStyle::Flex => hitbox
2973 .size
2974 .width
2975 .max(fixed_block_max_width)
2976 .max(gutter_dimensions.width + *scroll_width),
2977 BlockStyle::Fixed => unreachable!(),
2978 };
2979 let block_id = block.id();
2980
2981 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2982 focused_block = None;
2983 }
2984
2985 let (element, element_size) = self.render_block(
2986 block,
2987 width.into(),
2988 block_id,
2989 row,
2990 snapshot,
2991 text_x,
2992 &rows,
2993 line_layouts,
2994 gutter_dimensions,
2995 line_height,
2996 em_width,
2997 text_hitbox,
2998 editor_width,
2999 scroll_width,
3000 &mut resized_blocks,
3001 selections,
3002 selected_buffer_ids,
3003 is_row_soft_wrapped,
3004 sticky_header_excerpt_id,
3005 window,
3006 cx,
3007 );
3008
3009 blocks.push(BlockLayout {
3010 id: block_id,
3011 row: Some(row),
3012 element,
3013 available_space: size(width.into(), element_size.height.into()),
3014 style,
3015 is_buffer_header: block.is_buffer_header(),
3016 });
3017 }
3018
3019 if let Some(focused_block) = focused_block {
3020 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3021 if focus_handle.is_focused(window) {
3022 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3023 let style = block.style();
3024 let width = match style {
3025 BlockStyle::Fixed => AvailableSpace::MinContent,
3026 BlockStyle::Flex => AvailableSpace::Definite(
3027 hitbox
3028 .size
3029 .width
3030 .max(fixed_block_max_width)
3031 .max(gutter_dimensions.width + *scroll_width),
3032 ),
3033 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3034 };
3035
3036 let (element, element_size) = self.render_block(
3037 &block,
3038 width,
3039 focused_block.id,
3040 rows.end,
3041 snapshot,
3042 text_x,
3043 &rows,
3044 line_layouts,
3045 gutter_dimensions,
3046 line_height,
3047 em_width,
3048 text_hitbox,
3049 editor_width,
3050 scroll_width,
3051 &mut resized_blocks,
3052 selections,
3053 selected_buffer_ids,
3054 is_row_soft_wrapped,
3055 sticky_header_excerpt_id,
3056 window,
3057 cx,
3058 );
3059
3060 blocks.push(BlockLayout {
3061 id: block.id(),
3062 row: None,
3063 element,
3064 available_space: size(width, element_size.height.into()),
3065 style,
3066 is_buffer_header: block.is_buffer_header(),
3067 });
3068 }
3069 }
3070 }
3071 }
3072
3073 if resized_blocks.is_empty() {
3074 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3075 Ok(blocks)
3076 } else {
3077 Err(resized_blocks)
3078 }
3079 }
3080
3081 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3082 /// a restart of rendering for the editor based on the new sizes.
3083 fn layout_blocks(
3084 &self,
3085 blocks: &mut Vec<BlockLayout>,
3086 block_starts: &mut HashSet<DisplayRow>,
3087 hitbox: &Hitbox,
3088 line_height: Pixels,
3089 scroll_pixel_position: gpui::Point<Pixels>,
3090 window: &mut Window,
3091 cx: &mut App,
3092 ) {
3093 for block in blocks {
3094 let mut origin = if let Some(row) = block.row {
3095 block_starts.insert(row);
3096 hitbox.origin
3097 + point(
3098 Pixels::ZERO,
3099 row.as_f32() * line_height - scroll_pixel_position.y,
3100 )
3101 } else {
3102 // Position the block outside the visible area
3103 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3104 };
3105
3106 if !matches!(block.style, BlockStyle::Sticky) {
3107 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3108 }
3109
3110 let focus_handle =
3111 block
3112 .element
3113 .prepaint_as_root(origin, block.available_space, window, cx);
3114
3115 if let Some(focus_handle) = focus_handle {
3116 self.editor.update(cx, |editor, _cx| {
3117 editor.set_focused_block(FocusedBlock {
3118 id: block.id,
3119 focus_handle: focus_handle.downgrade(),
3120 });
3121 });
3122 }
3123 }
3124 }
3125
3126 fn layout_sticky_buffer_header(
3127 &self,
3128 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3129 scroll_position: f32,
3130 line_height: Pixels,
3131 snapshot: &EditorSnapshot,
3132 hitbox: &Hitbox,
3133 selected_buffer_ids: &Vec<BufferId>,
3134 blocks: &[BlockLayout],
3135 window: &mut Window,
3136 cx: &mut App,
3137 ) -> AnyElement {
3138 let jump_data = header_jump_data(
3139 snapshot,
3140 DisplayRow(scroll_position as u32),
3141 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3142 excerpt,
3143 );
3144
3145 let editor_bg_color = cx.theme().colors().editor_background;
3146
3147 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3148
3149 let mut header = v_flex()
3150 .relative()
3151 .child(
3152 div()
3153 .w(hitbox.bounds.size.width)
3154 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3155 .bg(linear_gradient(
3156 0.,
3157 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3158 linear_color_stop(editor_bg_color, 0.6),
3159 ))
3160 .absolute()
3161 .top_0(),
3162 )
3163 .child(
3164 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3165 .into_any_element(),
3166 )
3167 .into_any_element();
3168
3169 let mut origin = hitbox.origin;
3170 // Move floating header up to avoid colliding with the next buffer header.
3171 for block in blocks.iter() {
3172 if !block.is_buffer_header {
3173 continue;
3174 }
3175
3176 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3177 continue;
3178 };
3179
3180 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3181 let offset = scroll_position - max_row as f32;
3182
3183 if offset > 0.0 {
3184 origin.y -= offset * line_height;
3185 }
3186 break;
3187 }
3188
3189 let size = size(
3190 AvailableSpace::Definite(hitbox.size.width),
3191 AvailableSpace::MinContent,
3192 );
3193
3194 header.prepaint_as_root(origin, size, window, cx);
3195
3196 header
3197 }
3198
3199 fn layout_cursor_popovers(
3200 &self,
3201 line_height: Pixels,
3202 text_hitbox: &Hitbox,
3203 content_origin: gpui::Point<Pixels>,
3204 start_row: DisplayRow,
3205 scroll_pixel_position: gpui::Point<Pixels>,
3206 line_layouts: &[LineWithInvisibles],
3207 cursor: DisplayPoint,
3208 cursor_point: Point,
3209 style: &EditorStyle,
3210 window: &mut Window,
3211 cx: &mut App,
3212 ) {
3213 let mut min_menu_height = Pixels::ZERO;
3214 let mut max_menu_height = Pixels::ZERO;
3215 let mut height_above_menu = Pixels::ZERO;
3216 let height_below_menu = Pixels::ZERO;
3217 let mut edit_prediction_popover_visible = false;
3218 let mut context_menu_visible = false;
3219 let context_menu_placement;
3220
3221 {
3222 let editor = self.editor.read(cx);
3223 if editor
3224 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3225 {
3226 height_above_menu +=
3227 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3228 edit_prediction_popover_visible = true;
3229 }
3230
3231 if editor.context_menu_visible() {
3232 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3233 let (min_height_in_lines, max_height_in_lines) = editor
3234 .context_menu_options
3235 .as_ref()
3236 .map_or((3, 12), |options| {
3237 (options.min_entries_visible, options.max_entries_visible)
3238 });
3239
3240 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3241 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3242 context_menu_visible = true;
3243 }
3244 }
3245 context_menu_placement = editor
3246 .context_menu_options
3247 .as_ref()
3248 .and_then(|options| options.placement.clone());
3249 }
3250
3251 let visible = edit_prediction_popover_visible || context_menu_visible;
3252 if !visible {
3253 return;
3254 }
3255
3256 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3257 let target_position = content_origin
3258 + gpui::Point {
3259 x: cmp::max(
3260 px(0.),
3261 cursor_row_layout.x_for_index(cursor.column() as usize)
3262 - scroll_pixel_position.x,
3263 ),
3264 y: cmp::max(
3265 px(0.),
3266 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3267 ),
3268 };
3269
3270 let viewport_bounds =
3271 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3272 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3273 ..Default::default()
3274 });
3275
3276 let min_height = height_above_menu + min_menu_height + height_below_menu;
3277 let max_height = height_above_menu + max_menu_height + height_below_menu;
3278 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3279 target_position,
3280 line_height,
3281 min_height,
3282 max_height,
3283 context_menu_placement,
3284 text_hitbox,
3285 viewport_bounds,
3286 window,
3287 cx,
3288 |height, max_width_for_stable_x, y_flipped, window, cx| {
3289 // First layout the menu to get its size - others can be at least this wide.
3290 let context_menu = if context_menu_visible {
3291 let menu_height = if y_flipped {
3292 height - height_below_menu
3293 } else {
3294 height - height_above_menu
3295 };
3296 let mut element = self
3297 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3298 .expect("Visible context menu should always render.");
3299 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3300 Some((CursorPopoverType::CodeContextMenu, element, size))
3301 } else {
3302 None
3303 };
3304 let min_width = context_menu
3305 .as_ref()
3306 .map_or(px(0.), |(_, _, size)| size.width);
3307 let max_width = max_width_for_stable_x.max(
3308 context_menu
3309 .as_ref()
3310 .map_or(px(0.), |(_, _, size)| size.width),
3311 );
3312
3313 let edit_prediction = if edit_prediction_popover_visible {
3314 self.editor.update(cx, move |editor, cx| {
3315 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3316 let mut element = editor.render_edit_prediction_cursor_popover(
3317 min_width,
3318 max_width,
3319 cursor_point,
3320 style,
3321 accept_binding.keystroke(),
3322 window,
3323 cx,
3324 )?;
3325 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3326 Some((CursorPopoverType::EditPrediction, element, size))
3327 })
3328 } else {
3329 None
3330 };
3331 vec![edit_prediction, context_menu]
3332 .into_iter()
3333 .flatten()
3334 .collect::<Vec<_>>()
3335 },
3336 ) else {
3337 return;
3338 };
3339
3340 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3341 .iter()
3342 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3343 else {
3344 return;
3345 };
3346 let last_ix = laid_out_popovers.len() - 1;
3347 let menu_is_last = menu_ix == last_ix;
3348 let first_popover_bounds = laid_out_popovers[0].1;
3349 let last_popover_bounds = laid_out_popovers[last_ix].1;
3350
3351 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3352 // right, and otherwise it goes below or to the right.
3353 let mut target_bounds = Bounds::from_corners(
3354 first_popover_bounds.origin,
3355 last_popover_bounds.bottom_right(),
3356 );
3357 target_bounds.size.width = menu_bounds.size.width;
3358
3359 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3360 // based on this is preferred for layout stability.
3361 let mut max_target_bounds = target_bounds;
3362 max_target_bounds.size.height = max_height;
3363 if y_flipped {
3364 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3365 }
3366
3367 // Add spacing around `target_bounds` and `max_target_bounds`.
3368 let mut extend_amount = Edges::all(MENU_GAP);
3369 if y_flipped {
3370 extend_amount.bottom = line_height;
3371 } else {
3372 extend_amount.top = line_height;
3373 }
3374 let target_bounds = target_bounds.extend(extend_amount);
3375 let max_target_bounds = max_target_bounds.extend(extend_amount);
3376
3377 let must_place_above_or_below =
3378 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3379 laid_out_popovers[menu_ix + 1..]
3380 .iter()
3381 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3382 } else {
3383 false
3384 };
3385
3386 self.layout_context_menu_aside(
3387 y_flipped,
3388 *menu_bounds,
3389 target_bounds,
3390 max_target_bounds,
3391 max_menu_height,
3392 must_place_above_or_below,
3393 text_hitbox,
3394 viewport_bounds,
3395 window,
3396 cx,
3397 );
3398 }
3399
3400 fn layout_gutter_menu(
3401 &self,
3402 line_height: Pixels,
3403 text_hitbox: &Hitbox,
3404 content_origin: gpui::Point<Pixels>,
3405 scroll_pixel_position: gpui::Point<Pixels>,
3406 gutter_overshoot: Pixels,
3407 window: &mut Window,
3408 cx: &mut App,
3409 ) {
3410 let editor = self.editor.read(cx);
3411 if !editor.context_menu_visible() {
3412 return;
3413 }
3414 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3415 editor.context_menu_origin()
3416 else {
3417 return;
3418 };
3419 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3420 // indicator than just a plain first column of the text field.
3421 let target_position = content_origin
3422 + gpui::Point {
3423 x: -gutter_overshoot,
3424 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3425 };
3426
3427 let (min_height_in_lines, max_height_in_lines) = editor
3428 .context_menu_options
3429 .as_ref()
3430 .map_or((3, 12), |options| {
3431 (options.min_entries_visible, options.max_entries_visible)
3432 });
3433
3434 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3435 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3436 let viewport_bounds =
3437 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3438 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3439 ..Default::default()
3440 });
3441 self.layout_popovers_above_or_below_line(
3442 target_position,
3443 line_height,
3444 min_height,
3445 max_height,
3446 editor
3447 .context_menu_options
3448 .as_ref()
3449 .and_then(|options| options.placement.clone()),
3450 text_hitbox,
3451 viewport_bounds,
3452 window,
3453 cx,
3454 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3455 let mut element = self
3456 .render_context_menu(line_height, height, y_flipped, window, cx)
3457 .expect("Visible context menu should always render.");
3458 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3459 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3460 },
3461 );
3462 }
3463
3464 fn layout_popovers_above_or_below_line(
3465 &self,
3466 target_position: gpui::Point<Pixels>,
3467 line_height: Pixels,
3468 min_height: Pixels,
3469 max_height: Pixels,
3470 placement: Option<ContextMenuPlacement>,
3471 text_hitbox: &Hitbox,
3472 viewport_bounds: Bounds<Pixels>,
3473 window: &mut Window,
3474 cx: &mut App,
3475 make_sized_popovers: impl FnOnce(
3476 Pixels,
3477 Pixels,
3478 bool,
3479 &mut Window,
3480 &mut App,
3481 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3482 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3483 let text_style = TextStyleRefinement {
3484 line_height: Some(DefiniteLength::Fraction(
3485 BufferLineHeight::Comfortable.value(),
3486 )),
3487 ..Default::default()
3488 };
3489 window.with_text_style(Some(text_style), |window| {
3490 // If the max height won't fit below and there is more space above, put it above the line.
3491 let bottom_y_when_flipped = target_position.y - line_height;
3492 let available_above = bottom_y_when_flipped - text_hitbox.top();
3493 let available_below = text_hitbox.bottom() - target_position.y;
3494 let y_overflows_below = max_height > available_below;
3495 let mut y_flipped = match placement {
3496 Some(ContextMenuPlacement::Above) => true,
3497 Some(ContextMenuPlacement::Below) => false,
3498 None => y_overflows_below && available_above > available_below,
3499 };
3500 let mut height = cmp::min(
3501 max_height,
3502 if y_flipped {
3503 available_above
3504 } else {
3505 available_below
3506 },
3507 );
3508
3509 // If the min height doesn't fit within text bounds, instead fit within the window.
3510 if height < min_height {
3511 let available_above = bottom_y_when_flipped;
3512 let available_below = viewport_bounds.bottom() - target_position.y;
3513 let (y_flipped_override, height_override) = match placement {
3514 Some(ContextMenuPlacement::Above) => {
3515 (true, cmp::min(available_above, min_height))
3516 }
3517 Some(ContextMenuPlacement::Below) => {
3518 (false, cmp::min(available_below, min_height))
3519 }
3520 None => {
3521 if available_below > min_height {
3522 (false, min_height)
3523 } else if available_above > min_height {
3524 (true, min_height)
3525 } else if available_above > available_below {
3526 (true, available_above)
3527 } else {
3528 (false, available_below)
3529 }
3530 }
3531 };
3532 y_flipped = y_flipped_override;
3533 height = height_override;
3534 }
3535
3536 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3537
3538 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3539 // for very narrow windows.
3540 let popovers =
3541 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3542 if popovers.is_empty() {
3543 return None;
3544 }
3545
3546 let max_width = popovers
3547 .iter()
3548 .map(|(_, _, size)| size.width)
3549 .max()
3550 .unwrap_or_default();
3551
3552 let mut current_position = gpui::Point {
3553 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3554 // overflow. Include space for the scrollbar.
3555 x: target_position
3556 .x
3557 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3558 y: if y_flipped {
3559 bottom_y_when_flipped
3560 } else {
3561 target_position.y
3562 },
3563 };
3564
3565 let mut laid_out_popovers = popovers
3566 .into_iter()
3567 .map(|(popover_type, element, size)| {
3568 if y_flipped {
3569 current_position.y -= size.height;
3570 }
3571 let position = current_position;
3572 window.defer_draw(element, current_position, 1);
3573 if !y_flipped {
3574 current_position.y += size.height + MENU_GAP;
3575 } else {
3576 current_position.y -= MENU_GAP;
3577 }
3578 (popover_type, Bounds::new(position, size))
3579 })
3580 .collect::<Vec<_>>();
3581
3582 if y_flipped {
3583 laid_out_popovers.reverse();
3584 }
3585
3586 Some((laid_out_popovers, y_flipped))
3587 })
3588 }
3589
3590 fn layout_context_menu_aside(
3591 &self,
3592 y_flipped: bool,
3593 menu_bounds: Bounds<Pixels>,
3594 target_bounds: Bounds<Pixels>,
3595 max_target_bounds: Bounds<Pixels>,
3596 max_height: Pixels,
3597 must_place_above_or_below: bool,
3598 text_hitbox: &Hitbox,
3599 viewport_bounds: Bounds<Pixels>,
3600 window: &mut Window,
3601 cx: &mut App,
3602 ) {
3603 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3604 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3605 && !must_place_above_or_below
3606 {
3607 let max_width = cmp::min(
3608 available_within_viewport.right - px(1.),
3609 MENU_ASIDE_MAX_WIDTH,
3610 );
3611 let Some(mut aside) = self.render_context_menu_aside(
3612 size(max_width, max_height - POPOVER_Y_PADDING),
3613 window,
3614 cx,
3615 ) else {
3616 return;
3617 };
3618 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3619 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3620 Some((aside, right_position))
3621 } else {
3622 let max_size = size(
3623 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3624 // won't be needed here.
3625 cmp::min(
3626 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3627 viewport_bounds.right(),
3628 ),
3629 cmp::min(
3630 max_height,
3631 cmp::max(
3632 available_within_viewport.top,
3633 available_within_viewport.bottom,
3634 ),
3635 ) - POPOVER_Y_PADDING,
3636 );
3637 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3638 return;
3639 };
3640 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3641
3642 let top_position = point(
3643 menu_bounds.origin.x,
3644 target_bounds.top() - actual_size.height,
3645 );
3646 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3647
3648 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3649 // Prefer to fit on the same side of the line as the menu, then on the other side of
3650 // the line.
3651 if !y_flipped && wanted.height < available.bottom {
3652 Some(bottom_position)
3653 } else if !y_flipped && wanted.height < available.top {
3654 Some(top_position)
3655 } else if y_flipped && wanted.height < available.top {
3656 Some(top_position)
3657 } else if y_flipped && wanted.height < available.bottom {
3658 Some(bottom_position)
3659 } else {
3660 None
3661 }
3662 };
3663
3664 // Prefer choosing a direction using max sizes rather than actual size for stability.
3665 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3666 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3667 let aside_position = fit_within(available_within_text, wanted)
3668 // Fallback: fit max size in window.
3669 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3670 // Fallback: fit actual size in window.
3671 .or_else(|| fit_within(available_within_viewport, actual_size));
3672
3673 aside_position.map(|position| (aside, position))
3674 };
3675
3676 // Skip drawing if it doesn't fit anywhere.
3677 if let Some((aside, position)) = positioned_aside {
3678 window.defer_draw(aside, position, 2);
3679 }
3680 }
3681
3682 fn render_context_menu(
3683 &self,
3684 line_height: Pixels,
3685 height: Pixels,
3686 y_flipped: bool,
3687 window: &mut Window,
3688 cx: &mut App,
3689 ) -> Option<AnyElement> {
3690 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3691 self.editor.update(cx, |editor, cx| {
3692 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3693 })
3694 }
3695
3696 fn render_context_menu_aside(
3697 &self,
3698 max_size: Size<Pixels>,
3699 window: &mut Window,
3700 cx: &mut App,
3701 ) -> Option<AnyElement> {
3702 if max_size.width < px(100.) || max_size.height < px(12.) {
3703 None
3704 } else {
3705 self.editor.update(cx, |editor, cx| {
3706 editor.render_context_menu_aside(max_size, window, cx)
3707 })
3708 }
3709 }
3710
3711 fn layout_mouse_context_menu(
3712 &self,
3713 editor_snapshot: &EditorSnapshot,
3714 visible_range: Range<DisplayRow>,
3715 content_origin: gpui::Point<Pixels>,
3716 window: &mut Window,
3717 cx: &mut App,
3718 ) -> Option<AnyElement> {
3719 let position = self.editor.update(cx, |editor, _cx| {
3720 let visible_start_point = editor.display_to_pixel_point(
3721 DisplayPoint::new(visible_range.start, 0),
3722 editor_snapshot,
3723 window,
3724 )?;
3725 let visible_end_point = editor.display_to_pixel_point(
3726 DisplayPoint::new(visible_range.end, 0),
3727 editor_snapshot,
3728 window,
3729 )?;
3730
3731 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3732 let (source_display_point, position) = match mouse_context_menu.position {
3733 MenuPosition::PinnedToScreen(point) => (None, point),
3734 MenuPosition::PinnedToEditor { source, offset } => {
3735 let source_display_point = source.to_display_point(editor_snapshot);
3736 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3737 let position = content_origin + source_point + offset;
3738 (Some(source_display_point), position)
3739 }
3740 };
3741
3742 let source_included = source_display_point.map_or(true, |source_display_point| {
3743 visible_range
3744 .to_inclusive()
3745 .contains(&source_display_point.row())
3746 });
3747 let position_included =
3748 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3749 if !source_included && !position_included {
3750 None
3751 } else {
3752 Some(position)
3753 }
3754 })?;
3755
3756 let text_style = TextStyleRefinement {
3757 line_height: Some(DefiniteLength::Fraction(
3758 BufferLineHeight::Comfortable.value(),
3759 )),
3760 ..Default::default()
3761 };
3762 window.with_text_style(Some(text_style), |window| {
3763 let mut element = self.editor.update(cx, |editor, _| {
3764 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3765 let context_menu = mouse_context_menu.context_menu.clone();
3766
3767 Some(
3768 deferred(
3769 anchored()
3770 .position(position)
3771 .child(context_menu)
3772 .anchor(Corner::TopLeft)
3773 .snap_to_window_with_margin(px(8.)),
3774 )
3775 .with_priority(1)
3776 .into_any(),
3777 )
3778 })?;
3779
3780 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3781 Some(element)
3782 })
3783 }
3784
3785 fn layout_hover_popovers(
3786 &self,
3787 snapshot: &EditorSnapshot,
3788 hitbox: &Hitbox,
3789 text_hitbox: &Hitbox,
3790 visible_display_row_range: Range<DisplayRow>,
3791 content_origin: gpui::Point<Pixels>,
3792 scroll_pixel_position: gpui::Point<Pixels>,
3793 line_layouts: &[LineWithInvisibles],
3794 line_height: Pixels,
3795 em_width: Pixels,
3796 window: &mut Window,
3797 cx: &mut App,
3798 ) {
3799 struct MeasuredHoverPopover {
3800 element: AnyElement,
3801 size: Size<Pixels>,
3802 horizontal_offset: Pixels,
3803 }
3804
3805 let max_size = size(
3806 (120. * em_width) // Default size
3807 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3808 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3809 (16. * line_height) // Default size
3810 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3811 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3812 );
3813
3814 let hover_popovers = self.editor.update(cx, |editor, cx| {
3815 editor
3816 .hover_state
3817 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3818 });
3819 let Some((position, hover_popovers)) = hover_popovers else {
3820 return;
3821 };
3822
3823 // This is safe because we check on layout whether the required row is available
3824 let hovered_row_layout =
3825 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3826
3827 // Compute Hovered Point
3828 let x =
3829 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3830 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3831 let hovered_point = content_origin + point(x, y);
3832
3833 let mut overall_height = Pixels::ZERO;
3834 let mut measured_hover_popovers = Vec::new();
3835 for mut hover_popover in hover_popovers {
3836 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3837 let horizontal_offset =
3838 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3839
3840 overall_height += HOVER_POPOVER_GAP + size.height;
3841
3842 measured_hover_popovers.push(MeasuredHoverPopover {
3843 element: hover_popover,
3844 size,
3845 horizontal_offset,
3846 });
3847 }
3848 overall_height += HOVER_POPOVER_GAP;
3849
3850 fn draw_occluder(
3851 width: Pixels,
3852 origin: gpui::Point<Pixels>,
3853 window: &mut Window,
3854 cx: &mut App,
3855 ) {
3856 let mut occlusion = div()
3857 .size_full()
3858 .occlude()
3859 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3860 .into_any_element();
3861 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3862 window.defer_draw(occlusion, origin, 2);
3863 }
3864
3865 if hovered_point.y > overall_height {
3866 // There is enough space above. Render popovers above the hovered point
3867 let mut current_y = hovered_point.y;
3868 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3869 let size = popover.size;
3870 let popover_origin = point(
3871 hovered_point.x + popover.horizontal_offset,
3872 current_y - size.height,
3873 );
3874
3875 window.defer_draw(popover.element, popover_origin, 2);
3876 if position != itertools::Position::Last {
3877 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3878 draw_occluder(size.width, origin, window, cx);
3879 }
3880
3881 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3882 }
3883 } else {
3884 // There is not enough space above. Render popovers below the hovered point
3885 let mut current_y = hovered_point.y + line_height;
3886 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3887 let size = popover.size;
3888 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3889
3890 window.defer_draw(popover.element, popover_origin, 2);
3891 if position != itertools::Position::Last {
3892 let origin = point(popover_origin.x, popover_origin.y + size.height);
3893 draw_occluder(size.width, origin, window, cx);
3894 }
3895
3896 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3897 }
3898 }
3899 }
3900
3901 fn layout_diff_hunk_controls(
3902 &self,
3903 row_range: Range<DisplayRow>,
3904 row_infos: &[RowInfo],
3905 text_hitbox: &Hitbox,
3906 position_map: &PositionMap,
3907 newest_cursor_position: Option<DisplayPoint>,
3908 line_height: Pixels,
3909 scroll_pixel_position: gpui::Point<Pixels>,
3910 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3911 editor: Entity<Editor>,
3912 window: &mut Window,
3913 cx: &mut App,
3914 ) -> Vec<AnyElement> {
3915 let point_for_position = position_map.point_for_position(window.mouse_position());
3916
3917 let mut controls = vec![];
3918
3919 let active_positions = [
3920 Some(point_for_position.previous_valid),
3921 newest_cursor_position,
3922 ];
3923
3924 for (hunk, _) in display_hunks {
3925 if let DisplayDiffHunk::Unfolded {
3926 display_row_range,
3927 multi_buffer_range,
3928 status,
3929 is_created_file,
3930 ..
3931 } = &hunk
3932 {
3933 if display_row_range.start < row_range.start
3934 || display_row_range.start >= row_range.end
3935 {
3936 continue;
3937 }
3938 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3939 if row_infos[row_ix].diff_status.is_none() {
3940 continue;
3941 }
3942 if row_infos[row_ix]
3943 .diff_status
3944 .is_some_and(|status| status.is_added())
3945 && !status.is_added()
3946 {
3947 continue;
3948 }
3949 if active_positions
3950 .iter()
3951 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3952 {
3953 let y = display_row_range.start.as_f32() * line_height
3954 + text_hitbox.bounds.top()
3955 - scroll_pixel_position.y;
3956
3957 let mut element = diff_hunk_controls(
3958 display_row_range.start.0,
3959 status,
3960 multi_buffer_range.clone(),
3961 *is_created_file,
3962 line_height,
3963 &editor,
3964 cx,
3965 );
3966 let size =
3967 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3968
3969 let x = text_hitbox.bounds.right()
3970 - self.style.scrollbar_width
3971 - px(10.)
3972 - size.width;
3973
3974 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3975 element.prepaint(window, cx)
3976 });
3977 controls.push(element);
3978 }
3979 }
3980 }
3981
3982 controls
3983 }
3984
3985 fn layout_signature_help(
3986 &self,
3987 hitbox: &Hitbox,
3988 content_origin: gpui::Point<Pixels>,
3989 scroll_pixel_position: gpui::Point<Pixels>,
3990 newest_selection_head: Option<DisplayPoint>,
3991 start_row: DisplayRow,
3992 line_layouts: &[LineWithInvisibles],
3993 line_height: Pixels,
3994 em_width: Pixels,
3995 window: &mut Window,
3996 cx: &mut App,
3997 ) {
3998 if !self.editor.focus_handle(cx).is_focused(window) {
3999 return;
4000 }
4001 let Some(newest_selection_head) = newest_selection_head else {
4002 return;
4003 };
4004 let selection_row = newest_selection_head.row();
4005 if selection_row < start_row {
4006 return;
4007 }
4008 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4009 else {
4010 return;
4011 };
4012
4013 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4014 - scroll_pixel_position.x
4015 + content_origin.x;
4016 let start_y =
4017 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4018
4019 let max_size = size(
4020 (120. * em_width) // Default size
4021 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4022 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4023 (16. * line_height) // Default size
4024 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4025 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4026 );
4027
4028 let maybe_element = self.editor.update(cx, |editor, cx| {
4029 if let Some(popover) = editor.signature_help_state.popover_mut() {
4030 let element = popover.render(max_size, cx);
4031 Some(element)
4032 } else {
4033 None
4034 }
4035 });
4036 if let Some(mut element) = maybe_element {
4037 let window_size = window.viewport_size();
4038 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4039 let mut point = point(start_x, start_y - size.height);
4040
4041 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4042 if point.x + size.width >= window_size.width {
4043 point.x = window_size.width - size.width;
4044 }
4045
4046 window.defer_draw(element, point, 1)
4047 }
4048 }
4049
4050 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4051 window.paint_layer(layout.hitbox.bounds, |window| {
4052 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4053 let gutter_bg = cx.theme().colors().editor_gutter_background;
4054 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4055 window.paint_quad(fill(
4056 layout.position_map.text_hitbox.bounds,
4057 self.style.background,
4058 ));
4059
4060 if let EditorMode::Full = layout.mode {
4061 let mut active_rows = layout.active_rows.iter().peekable();
4062 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4063 let mut end_row = start_row.0;
4064 while active_rows
4065 .peek()
4066 .map_or(false, |(active_row, has_selection)| {
4067 active_row.0 == end_row + 1
4068 && has_selection.selection == contains_non_empty_selection.selection
4069 })
4070 {
4071 active_rows.next().unwrap();
4072 end_row += 1;
4073 }
4074
4075 if !contains_non_empty_selection.selection {
4076 let highlight_h_range =
4077 match layout.position_map.snapshot.current_line_highlight {
4078 CurrentLineHighlight::Gutter => Some(Range {
4079 start: layout.hitbox.left(),
4080 end: layout.gutter_hitbox.right(),
4081 }),
4082 CurrentLineHighlight::Line => Some(Range {
4083 start: layout.position_map.text_hitbox.bounds.left(),
4084 end: layout.position_map.text_hitbox.bounds.right(),
4085 }),
4086 CurrentLineHighlight::All => Some(Range {
4087 start: layout.hitbox.left(),
4088 end: layout.hitbox.right(),
4089 }),
4090 CurrentLineHighlight::None => None,
4091 };
4092 if let Some(range) = highlight_h_range {
4093 let active_line_bg = cx.theme().colors().editor_active_line_background;
4094 let bounds = Bounds {
4095 origin: point(
4096 range.start,
4097 layout.hitbox.origin.y
4098 + (start_row.as_f32() - scroll_top)
4099 * layout.position_map.line_height,
4100 ),
4101 size: size(
4102 range.end - range.start,
4103 layout.position_map.line_height
4104 * (end_row - start_row.0 + 1) as f32,
4105 ),
4106 };
4107 window.paint_quad(fill(bounds, active_line_bg));
4108 }
4109 }
4110 }
4111
4112 let mut paint_highlight = |highlight_row_start: DisplayRow,
4113 highlight_row_end: DisplayRow,
4114 highlight: crate::LineHighlight,
4115 edges| {
4116 let origin = point(
4117 layout.hitbox.origin.x,
4118 layout.hitbox.origin.y
4119 + (highlight_row_start.as_f32() - scroll_top)
4120 * layout.position_map.line_height,
4121 );
4122 let size = size(
4123 layout.hitbox.size.width,
4124 layout.position_map.line_height
4125 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4126 );
4127 let mut quad = fill(Bounds { origin, size }, highlight.background);
4128 if let Some(border_color) = highlight.border {
4129 quad.border_color = border_color;
4130 quad.border_widths = edges
4131 }
4132 window.paint_quad(quad);
4133 };
4134
4135 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4136 None;
4137 for (&new_row, &new_background) in &layout.highlighted_rows {
4138 match &mut current_paint {
4139 Some((current_background, current_range, mut edges)) => {
4140 let current_background = *current_background;
4141 let new_range_started = current_background != new_background
4142 || current_range.end.next_row() != new_row;
4143 if new_range_started {
4144 if current_range.end.next_row() == new_row {
4145 edges.bottom = px(0.);
4146 };
4147 paint_highlight(
4148 current_range.start,
4149 current_range.end,
4150 current_background,
4151 edges,
4152 );
4153 let edges = Edges {
4154 top: if current_range.end.next_row() != new_row {
4155 px(1.)
4156 } else {
4157 px(0.)
4158 },
4159 bottom: px(1.),
4160 ..Default::default()
4161 };
4162 current_paint = Some((new_background, new_row..new_row, edges));
4163 continue;
4164 } else {
4165 current_range.end = current_range.end.next_row();
4166 }
4167 }
4168 None => {
4169 let edges = Edges {
4170 top: px(1.),
4171 bottom: px(1.),
4172 ..Default::default()
4173 };
4174 current_paint = Some((new_background, new_row..new_row, edges))
4175 }
4176 };
4177 }
4178 if let Some((color, range, edges)) = current_paint {
4179 paint_highlight(range.start, range.end, color, edges);
4180 }
4181
4182 let scroll_left =
4183 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4184
4185 for (wrap_position, active) in layout.wrap_guides.iter() {
4186 let x = (layout.position_map.text_hitbox.origin.x
4187 + *wrap_position
4188 + layout.position_map.em_width / 2.)
4189 - scroll_left;
4190
4191 let show_scrollbars = layout
4192 .scrollbars_layout
4193 .as_ref()
4194 .map_or(false, |layout| layout.visible);
4195
4196 if x < layout.position_map.text_hitbox.origin.x
4197 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4198 {
4199 continue;
4200 }
4201
4202 let color = if *active {
4203 cx.theme().colors().editor_active_wrap_guide
4204 } else {
4205 cx.theme().colors().editor_wrap_guide
4206 };
4207 window.paint_quad(fill(
4208 Bounds {
4209 origin: point(x, layout.position_map.text_hitbox.origin.y),
4210 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4211 },
4212 color,
4213 ));
4214 }
4215 }
4216 })
4217 }
4218
4219 fn paint_indent_guides(
4220 &mut self,
4221 layout: &mut EditorLayout,
4222 window: &mut Window,
4223 cx: &mut App,
4224 ) {
4225 let Some(indent_guides) = &layout.indent_guides else {
4226 return;
4227 };
4228
4229 let faded_color = |color: Hsla, alpha: f32| {
4230 let mut faded = color;
4231 faded.a = alpha;
4232 faded
4233 };
4234
4235 for indent_guide in indent_guides {
4236 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4237 let settings = indent_guide.settings;
4238
4239 // TODO fixed for now, expose them through themes later
4240 const INDENT_AWARE_ALPHA: f32 = 0.2;
4241 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4242 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4243 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4244
4245 let line_color = match (settings.coloring, indent_guide.active) {
4246 (IndentGuideColoring::Disabled, _) => None,
4247 (IndentGuideColoring::Fixed, false) => {
4248 Some(cx.theme().colors().editor_indent_guide)
4249 }
4250 (IndentGuideColoring::Fixed, true) => {
4251 Some(cx.theme().colors().editor_indent_guide_active)
4252 }
4253 (IndentGuideColoring::IndentAware, false) => {
4254 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4255 }
4256 (IndentGuideColoring::IndentAware, true) => {
4257 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4258 }
4259 };
4260
4261 let background_color = match (settings.background_coloring, indent_guide.active) {
4262 (IndentGuideBackgroundColoring::Disabled, _) => None,
4263 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4264 indent_accent_colors,
4265 INDENT_AWARE_BACKGROUND_ALPHA,
4266 )),
4267 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4268 indent_accent_colors,
4269 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4270 )),
4271 };
4272
4273 let requested_line_width = if indent_guide.active {
4274 settings.active_line_width
4275 } else {
4276 settings.line_width
4277 }
4278 .clamp(1, 10);
4279 let mut line_indicator_width = 0.;
4280 if let Some(color) = line_color {
4281 window.paint_quad(fill(
4282 Bounds {
4283 origin: indent_guide.origin,
4284 size: size(px(requested_line_width as f32), indent_guide.length),
4285 },
4286 color,
4287 ));
4288 line_indicator_width = requested_line_width as f32;
4289 }
4290
4291 if let Some(color) = background_color {
4292 let width = indent_guide.single_indent_width - px(line_indicator_width);
4293 window.paint_quad(fill(
4294 Bounds {
4295 origin: point(
4296 indent_guide.origin.x + px(line_indicator_width),
4297 indent_guide.origin.y,
4298 ),
4299 size: size(width, indent_guide.length),
4300 },
4301 color,
4302 ));
4303 }
4304 }
4305 }
4306
4307 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4308 let is_singleton = self.editor.read(cx).is_singleton(cx);
4309
4310 let line_height = layout.position_map.line_height;
4311 window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox));
4312
4313 for LineNumberLayout {
4314 shaped_line,
4315 hitbox,
4316 } in layout.line_numbers.values()
4317 {
4318 let Some(hitbox) = hitbox else {
4319 continue;
4320 };
4321
4322 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4323 let color = cx.theme().colors().editor_hover_line_number;
4324
4325 let Some(line) = self
4326 .shape_line_number(shaped_line.text.clone(), color, window)
4327 .log_err()
4328 else {
4329 continue;
4330 };
4331
4332 line.paint(hitbox.origin, line_height, window, cx).log_err()
4333 } else {
4334 shaped_line
4335 .paint(hitbox.origin, line_height, window, cx)
4336 .log_err()
4337 }) else {
4338 continue;
4339 };
4340
4341 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4342 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4343 if is_singleton {
4344 window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox));
4345 } else {
4346 window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox));
4347 }
4348 }
4349 }
4350
4351 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4352 if layout.display_hunks.is_empty() {
4353 return;
4354 }
4355
4356 let line_height = layout.position_map.line_height;
4357 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4358 for (hunk, hitbox) in &layout.display_hunks {
4359 let hunk_to_paint = match hunk {
4360 DisplayDiffHunk::Folded { .. } => {
4361 let hunk_bounds = Self::diff_hunk_bounds(
4362 &layout.position_map.snapshot,
4363 line_height,
4364 layout.gutter_hitbox.bounds,
4365 &hunk,
4366 );
4367 Some((
4368 hunk_bounds,
4369 cx.theme().colors().version_control_modified,
4370 Corners::all(px(0.)),
4371 DiffHunkStatus::modified_none(),
4372 ))
4373 }
4374 DisplayDiffHunk::Unfolded {
4375 status,
4376 display_row_range,
4377 ..
4378 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4379 DiffHunkStatusKind::Added => (
4380 hunk_hitbox.bounds,
4381 cx.theme().colors().version_control_added,
4382 Corners::all(px(0.)),
4383 *status,
4384 ),
4385 DiffHunkStatusKind::Modified => (
4386 hunk_hitbox.bounds,
4387 cx.theme().colors().version_control_modified,
4388 Corners::all(px(0.)),
4389 *status,
4390 ),
4391 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4392 hunk_hitbox.bounds,
4393 cx.theme().colors().version_control_deleted,
4394 Corners::all(px(0.)),
4395 *status,
4396 ),
4397 DiffHunkStatusKind::Deleted => (
4398 Bounds::new(
4399 point(
4400 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4401 hunk_hitbox.origin.y,
4402 ),
4403 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4404 ),
4405 cx.theme().colors().version_control_deleted,
4406 Corners::all(1. * line_height),
4407 *status,
4408 ),
4409 }),
4410 };
4411
4412 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4413 // Flatten the background color with the editor color to prevent
4414 // elements below transparent hunks from showing through
4415 let flattened_background_color = cx
4416 .theme()
4417 .colors()
4418 .editor_background
4419 .blend(background_color);
4420
4421 if !Self::diff_hunk_hollow(status, cx) {
4422 window.paint_quad(quad(
4423 hunk_bounds,
4424 corner_radii,
4425 flattened_background_color,
4426 Edges::default(),
4427 transparent_black(),
4428 BorderStyle::default(),
4429 ));
4430 } else {
4431 let flattened_unstaged_background_color = cx
4432 .theme()
4433 .colors()
4434 .editor_background
4435 .blend(background_color.opacity(0.3));
4436
4437 window.paint_quad(quad(
4438 hunk_bounds,
4439 corner_radii,
4440 flattened_unstaged_background_color,
4441 Edges::all(Pixels(1.0)),
4442 flattened_background_color,
4443 BorderStyle::Solid,
4444 ));
4445 }
4446 }
4447 }
4448 });
4449 }
4450
4451 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4452 (0.275 * line_height).floor()
4453 }
4454
4455 fn diff_hunk_bounds(
4456 snapshot: &EditorSnapshot,
4457 line_height: Pixels,
4458 gutter_bounds: Bounds<Pixels>,
4459 hunk: &DisplayDiffHunk,
4460 ) -> Bounds<Pixels> {
4461 let scroll_position = snapshot.scroll_position();
4462 let scroll_top = scroll_position.y * line_height;
4463 let gutter_strip_width = Self::gutter_strip_width(line_height);
4464
4465 match hunk {
4466 DisplayDiffHunk::Folded { display_row, .. } => {
4467 let start_y = display_row.as_f32() * line_height - scroll_top;
4468 let end_y = start_y + line_height;
4469 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4470 let highlight_size = size(gutter_strip_width, end_y - start_y);
4471 Bounds::new(highlight_origin, highlight_size)
4472 }
4473 DisplayDiffHunk::Unfolded {
4474 display_row_range,
4475 status,
4476 ..
4477 } => {
4478 if status.is_deleted() && display_row_range.is_empty() {
4479 let row = display_row_range.start;
4480
4481 let offset = line_height / 2.;
4482 let start_y = row.as_f32() * line_height - offset - scroll_top;
4483 let end_y = start_y + line_height;
4484
4485 let width = (0.35 * line_height).floor();
4486 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4487 let highlight_size = size(width, end_y - start_y);
4488 Bounds::new(highlight_origin, highlight_size)
4489 } else {
4490 let start_row = display_row_range.start;
4491 let end_row = display_row_range.end;
4492 // If we're in a multibuffer, row range span might include an
4493 // excerpt header, so if we were to draw the marker straight away,
4494 // the hunk might include the rows of that header.
4495 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4496 // Instead, we simply check whether the range we're dealing with includes
4497 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4498 let end_row_in_current_excerpt = snapshot
4499 .blocks_in_range(start_row..end_row)
4500 .find_map(|(start_row, block)| {
4501 if matches!(block, Block::ExcerptBoundary { .. }) {
4502 Some(start_row)
4503 } else {
4504 None
4505 }
4506 })
4507 .unwrap_or(end_row);
4508
4509 let start_y = start_row.as_f32() * line_height - scroll_top;
4510 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4511
4512 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4513 let highlight_size = size(gutter_strip_width, end_y - start_y);
4514 Bounds::new(highlight_origin, highlight_size)
4515 }
4516 }
4517 }
4518 }
4519
4520 fn paint_gutter_indicators(
4521 &self,
4522 layout: &mut EditorLayout,
4523 window: &mut Window,
4524 cx: &mut App,
4525 ) {
4526 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4527 window.with_element_namespace("crease_toggles", |window| {
4528 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4529 crease_toggle.paint(window, cx);
4530 }
4531 });
4532
4533 window.with_element_namespace("expand_toggles", |window| {
4534 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4535 expand_toggle.paint(window, cx);
4536 }
4537 });
4538
4539 for breakpoint in layout.breakpoints.iter_mut() {
4540 breakpoint.paint(window, cx);
4541 }
4542
4543 for test_indicator in layout.test_indicators.iter_mut() {
4544 test_indicator.paint(window, cx);
4545 }
4546
4547 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4548 indicator.paint(window, cx);
4549 }
4550 });
4551 }
4552
4553 fn paint_gutter_highlights(
4554 &self,
4555 layout: &mut EditorLayout,
4556 window: &mut Window,
4557 cx: &mut App,
4558 ) {
4559 for (_, hunk_hitbox) in &layout.display_hunks {
4560 if let Some(hunk_hitbox) = hunk_hitbox {
4561 if !self
4562 .editor
4563 .read(cx)
4564 .buffer()
4565 .read(cx)
4566 .all_diff_hunks_expanded()
4567 {
4568 window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox));
4569 }
4570 }
4571 }
4572
4573 let show_git_gutter = layout
4574 .position_map
4575 .snapshot
4576 .show_git_diff_gutter
4577 .unwrap_or_else(|| {
4578 matches!(
4579 ProjectSettings::get_global(cx).git.git_gutter,
4580 Some(GitGutterSetting::TrackedFiles)
4581 )
4582 });
4583 if show_git_gutter {
4584 Self::paint_gutter_diff_hunks(layout, window, cx)
4585 }
4586
4587 let highlight_width = 0.275 * layout.position_map.line_height;
4588 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4589 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4590 for (range, color) in &layout.highlighted_gutter_ranges {
4591 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4592 layout.visible_display_row_range.start - DisplayRow(1)
4593 } else {
4594 range.start.row()
4595 };
4596 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4597 layout.visible_display_row_range.end + DisplayRow(1)
4598 } else {
4599 range.end.row()
4600 };
4601
4602 let start_y = layout.gutter_hitbox.top()
4603 + start_row.0 as f32 * layout.position_map.line_height
4604 - layout.position_map.scroll_pixel_position.y;
4605 let end_y = layout.gutter_hitbox.top()
4606 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4607 - layout.position_map.scroll_pixel_position.y;
4608 let bounds = Bounds::from_corners(
4609 point(layout.gutter_hitbox.left(), start_y),
4610 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4611 );
4612 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4613 }
4614 });
4615 }
4616
4617 fn paint_blamed_display_rows(
4618 &self,
4619 layout: &mut EditorLayout,
4620 window: &mut Window,
4621 cx: &mut App,
4622 ) {
4623 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4624 return;
4625 };
4626
4627 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4628 for mut blame_element in blamed_display_rows.into_iter() {
4629 blame_element.paint(window, cx);
4630 }
4631 })
4632 }
4633
4634 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4635 window.with_content_mask(
4636 Some(ContentMask {
4637 bounds: layout.position_map.text_hitbox.bounds,
4638 }),
4639 |window| {
4640 let editor = self.editor.read(cx);
4641 if editor.mouse_cursor_hidden {
4642 window.set_cursor_style(CursorStyle::None, None);
4643 } else if editor
4644 .hovered_link_state
4645 .as_ref()
4646 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4647 {
4648 window.set_cursor_style(
4649 CursorStyle::PointingHand,
4650 Some(&layout.position_map.text_hitbox),
4651 );
4652 } else {
4653 window.set_cursor_style(
4654 CursorStyle::IBeam,
4655 Some(&layout.position_map.text_hitbox),
4656 );
4657 };
4658
4659 self.paint_lines_background(layout, window, cx);
4660 let invisible_display_ranges = self.paint_highlights(layout, window);
4661 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4662 self.paint_redactions(layout, window);
4663 self.paint_cursors(layout, window, cx);
4664 self.paint_inline_diagnostics(layout, window, cx);
4665 self.paint_inline_blame(layout, window, cx);
4666 self.paint_diff_hunk_controls(layout, window, cx);
4667 window.with_element_namespace("crease_trailers", |window| {
4668 for trailer in layout.crease_trailers.iter_mut().flatten() {
4669 trailer.element.paint(window, cx);
4670 }
4671 });
4672 },
4673 )
4674 }
4675
4676 fn paint_highlights(
4677 &mut self,
4678 layout: &mut EditorLayout,
4679 window: &mut Window,
4680 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4681 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4682 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4683 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4684 for (range, color) in &layout.highlighted_ranges {
4685 self.paint_highlighted_range(
4686 range.clone(),
4687 *color,
4688 Pixels::ZERO,
4689 line_end_overshoot,
4690 layout,
4691 window,
4692 );
4693 }
4694
4695 let corner_radius = 0.15 * layout.position_map.line_height;
4696
4697 for (player_color, selections) in &layout.selections {
4698 for selection in selections.iter() {
4699 self.paint_highlighted_range(
4700 selection.range.clone(),
4701 player_color.selection,
4702 corner_radius,
4703 corner_radius * 2.,
4704 layout,
4705 window,
4706 );
4707
4708 if selection.is_local && !selection.range.is_empty() {
4709 invisible_display_ranges.push(selection.range.clone());
4710 }
4711 }
4712 }
4713 invisible_display_ranges
4714 })
4715 }
4716
4717 fn paint_lines(
4718 &mut self,
4719 invisible_display_ranges: &[Range<DisplayPoint>],
4720 layout: &mut EditorLayout,
4721 window: &mut Window,
4722 cx: &mut App,
4723 ) {
4724 let whitespace_setting = self
4725 .editor
4726 .read(cx)
4727 .buffer
4728 .read(cx)
4729 .language_settings(cx)
4730 .show_whitespaces;
4731
4732 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4733 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4734 line_with_invisibles.draw(
4735 layout,
4736 row,
4737 layout.content_origin,
4738 whitespace_setting,
4739 invisible_display_ranges,
4740 window,
4741 cx,
4742 )
4743 }
4744
4745 for line_element in &mut layout.line_elements {
4746 line_element.paint(window, cx);
4747 }
4748 }
4749
4750 fn paint_lines_background(
4751 &mut self,
4752 layout: &mut EditorLayout,
4753 window: &mut Window,
4754 cx: &mut App,
4755 ) {
4756 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4757 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4758 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4759 }
4760 }
4761
4762 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4763 if layout.redacted_ranges.is_empty() {
4764 return;
4765 }
4766
4767 let line_end_overshoot = layout.line_end_overshoot();
4768
4769 // A softer than perfect black
4770 let redaction_color = gpui::rgb(0x0e1111);
4771
4772 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4773 for range in layout.redacted_ranges.iter() {
4774 self.paint_highlighted_range(
4775 range.clone(),
4776 redaction_color.into(),
4777 Pixels::ZERO,
4778 line_end_overshoot,
4779 layout,
4780 window,
4781 );
4782 }
4783 });
4784 }
4785
4786 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4787 for cursor in &mut layout.visible_cursors {
4788 cursor.paint(layout.content_origin, window, cx);
4789 }
4790 }
4791
4792 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4793 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
4794 return;
4795 };
4796
4797 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
4798 let hitbox = &scrollbar_layout.hitbox;
4799 let thumb_bounds = scrollbar_layout.thumb_bounds();
4800
4801 if scrollbars_layout.visible {
4802 let scrollbar_edges = match axis {
4803 ScrollbarAxis::Horizontal => Edges {
4804 top: Pixels::ZERO,
4805 right: Pixels::ZERO,
4806 bottom: Pixels::ZERO,
4807 left: Pixels::ZERO,
4808 },
4809 ScrollbarAxis::Vertical => Edges {
4810 top: Pixels::ZERO,
4811 right: Pixels::ZERO,
4812 bottom: Pixels::ZERO,
4813 left: ScrollbarLayout::BORDER_WIDTH,
4814 },
4815 };
4816
4817 window.paint_layer(hitbox.bounds, |window| {
4818 window.paint_quad(quad(
4819 hitbox.bounds,
4820 Corners::default(),
4821 cx.theme().colors().scrollbar_track_background,
4822 scrollbar_edges,
4823 cx.theme().colors().scrollbar_track_border,
4824 BorderStyle::Solid,
4825 ));
4826
4827 if axis == ScrollbarAxis::Vertical {
4828 let fast_markers =
4829 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4830 // Refresh slow scrollbar markers in the background. Below, we
4831 // paint whatever markers have already been computed.
4832 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4833
4834 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4835 for marker in markers.iter().chain(&fast_markers) {
4836 let mut marker = marker.clone();
4837 marker.bounds.origin += hitbox.origin;
4838 window.paint_quad(marker);
4839 }
4840 }
4841
4842 window.paint_quad(quad(
4843 thumb_bounds,
4844 Corners::default(),
4845 cx.theme().colors().scrollbar_thumb_background,
4846 scrollbar_edges,
4847 cx.theme().colors().scrollbar_thumb_border,
4848 BorderStyle::Solid,
4849 ));
4850 })
4851 }
4852 window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox));
4853 }
4854
4855 window.on_mouse_event({
4856 let editor = self.editor.clone();
4857 let scrollbars_layout = scrollbars_layout.clone();
4858
4859 let mut mouse_position = window.mouse_position();
4860 move |event: &MouseMoveEvent, phase, window, cx| {
4861 if phase == DispatchPhase::Capture {
4862 return;
4863 }
4864
4865 editor.update(cx, |editor, cx| {
4866 if let Some((scrollbar_layout, axis)) = event
4867 .pressed_button
4868 .filter(|button| *button == MouseButton::Left)
4869 .and(editor.scroll_manager.dragging_scrollbar_axis())
4870 .and_then(|axis| {
4871 scrollbars_layout
4872 .iter_scrollbars()
4873 .find(|(_, a)| *a == axis)
4874 })
4875 {
4876 let ScrollbarLayout {
4877 hitbox,
4878 text_unit_size,
4879 ..
4880 } = scrollbar_layout;
4881
4882 let old_position = mouse_position.along(axis);
4883 let new_position = event.position.along(axis);
4884 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
4885 .contains(&old_position)
4886 {
4887 let position = editor.scroll_position(cx).apply_along(axis, |p| {
4888 (p + (new_position - old_position) / *text_unit_size).max(0.)
4889 });
4890 editor.set_scroll_position(position, window, cx);
4891 }
4892 cx.stop_propagation();
4893 } else {
4894 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4895 }
4896
4897 if scrollbars_layout.get_hovered_axis(window).is_some() {
4898 editor.scroll_manager.show_scrollbars(window, cx);
4899 }
4900
4901 mouse_position = event.position;
4902 })
4903 }
4904 });
4905
4906 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
4907 window.on_mouse_event({
4908 let editor = self.editor.clone();
4909 move |_: &MouseUpEvent, phase, _, cx| {
4910 if phase == DispatchPhase::Capture {
4911 return;
4912 }
4913
4914 editor.update(cx, |editor, cx| {
4915 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4916 cx.stop_propagation();
4917 });
4918 }
4919 });
4920 } else {
4921 window.on_mouse_event({
4922 let editor = self.editor.clone();
4923 let scrollbars_layout = scrollbars_layout.clone();
4924
4925 move |event: &MouseDownEvent, phase, window, cx| {
4926 if phase == DispatchPhase::Capture {
4927 return;
4928 }
4929 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
4930 else {
4931 return;
4932 };
4933
4934 let ScrollbarLayout {
4935 hitbox,
4936 visible_range,
4937 text_unit_size,
4938 ..
4939 } = scrollbar_layout;
4940
4941 let thumb_bounds = scrollbar_layout.thumb_bounds();
4942
4943 editor.update(cx, |editor, cx| {
4944 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
4945
4946 let event_position = event.position.along(axis);
4947
4948 if event_position < thumb_bounds.origin.along(axis)
4949 || thumb_bounds.bottom_right().along(axis) < event_position
4950 {
4951 let center_position = ((event_position - hitbox.origin.along(axis))
4952 / *text_unit_size)
4953 .round() as u32;
4954 let start_position = center_position.saturating_sub(
4955 (visible_range.end - visible_range.start) as u32 / 2,
4956 );
4957
4958 let position = editor
4959 .scroll_position(cx)
4960 .apply_along(axis, |_| start_position as f32);
4961
4962 editor.set_scroll_position(position, window, cx);
4963 } else {
4964 editor.scroll_manager.show_scrollbars(window, cx);
4965 }
4966
4967 cx.stop_propagation();
4968 });
4969 }
4970 });
4971 }
4972 }
4973
4974 fn collect_fast_scrollbar_markers(
4975 &self,
4976 layout: &EditorLayout,
4977 scrollbar_layout: &ScrollbarLayout,
4978 cx: &mut App,
4979 ) -> Vec<PaintQuad> {
4980 const LIMIT: usize = 100;
4981 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4982 return vec![];
4983 }
4984 let cursor_ranges = layout
4985 .cursors
4986 .iter()
4987 .map(|(point, color)| ColoredRange {
4988 start: point.row(),
4989 end: point.row(),
4990 color: *color,
4991 })
4992 .collect_vec();
4993 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4994 }
4995
4996 fn refresh_slow_scrollbar_markers(
4997 &self,
4998 layout: &EditorLayout,
4999 scrollbar_layout: &ScrollbarLayout,
5000 window: &mut Window,
5001 cx: &mut App,
5002 ) {
5003 self.editor.update(cx, |editor, cx| {
5004 if !editor.is_singleton(cx)
5005 || !editor
5006 .scrollbar_marker_state
5007 .should_refresh(scrollbar_layout.hitbox.size)
5008 {
5009 return;
5010 }
5011
5012 let scrollbar_layout = scrollbar_layout.clone();
5013 let background_highlights = editor.background_highlights.clone();
5014 let snapshot = layout.position_map.snapshot.clone();
5015 let theme = cx.theme().clone();
5016 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5017
5018 editor.scrollbar_marker_state.dirty = false;
5019 editor.scrollbar_marker_state.pending_refresh =
5020 Some(cx.spawn_in(window, async move |editor, cx| {
5021 let scrollbar_size = scrollbar_layout.hitbox.size;
5022 let scrollbar_markers = cx
5023 .background_spawn(async move {
5024 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5025 let mut marker_quads = Vec::new();
5026 if scrollbar_settings.git_diff {
5027 let marker_row_ranges =
5028 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5029 let start_display_row =
5030 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5031 .to_display_point(&snapshot.display_snapshot)
5032 .row();
5033 let mut end_display_row =
5034 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5035 .to_display_point(&snapshot.display_snapshot)
5036 .row();
5037 if end_display_row != start_display_row {
5038 end_display_row.0 -= 1;
5039 }
5040 let color = match &hunk.status().kind {
5041 DiffHunkStatusKind::Added => {
5042 theme.colors().version_control_added
5043 }
5044 DiffHunkStatusKind::Modified => {
5045 theme.colors().version_control_modified
5046 }
5047 DiffHunkStatusKind::Deleted => {
5048 theme.colors().version_control_deleted
5049 }
5050 };
5051 ColoredRange {
5052 start: start_display_row,
5053 end: end_display_row,
5054 color,
5055 }
5056 });
5057
5058 marker_quads.extend(
5059 scrollbar_layout
5060 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5061 );
5062 }
5063
5064 for (background_highlight_id, (_, background_ranges)) in
5065 background_highlights.iter()
5066 {
5067 let is_search_highlights = *background_highlight_id
5068 == TypeId::of::<BufferSearchHighlights>();
5069 let is_text_highlights = *background_highlight_id
5070 == TypeId::of::<SelectedTextHighlight>();
5071 let is_symbol_occurrences = *background_highlight_id
5072 == TypeId::of::<DocumentHighlightRead>()
5073 || *background_highlight_id
5074 == TypeId::of::<DocumentHighlightWrite>();
5075 if (is_search_highlights && scrollbar_settings.search_results)
5076 || (is_text_highlights && scrollbar_settings.selected_text)
5077 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5078 {
5079 let mut color = theme.status().info;
5080 if is_symbol_occurrences {
5081 color.fade_out(0.5);
5082 }
5083 let marker_row_ranges = background_ranges.iter().map(|range| {
5084 let display_start = range
5085 .start
5086 .to_display_point(&snapshot.display_snapshot);
5087 let display_end =
5088 range.end.to_display_point(&snapshot.display_snapshot);
5089 ColoredRange {
5090 start: display_start.row(),
5091 end: display_end.row(),
5092 color,
5093 }
5094 });
5095 marker_quads.extend(
5096 scrollbar_layout
5097 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5098 );
5099 }
5100 }
5101
5102 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5103 let diagnostics = snapshot
5104 .buffer_snapshot
5105 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5106 // Don't show diagnostics the user doesn't care about
5107 .filter(|diagnostic| {
5108 match (
5109 scrollbar_settings.diagnostics,
5110 diagnostic.diagnostic.severity,
5111 ) {
5112 (ScrollbarDiagnostics::All, _) => true,
5113 (
5114 ScrollbarDiagnostics::Error,
5115 DiagnosticSeverity::ERROR,
5116 ) => true,
5117 (
5118 ScrollbarDiagnostics::Warning,
5119 DiagnosticSeverity::ERROR
5120 | DiagnosticSeverity::WARNING,
5121 ) => true,
5122 (
5123 ScrollbarDiagnostics::Information,
5124 DiagnosticSeverity::ERROR
5125 | DiagnosticSeverity::WARNING
5126 | DiagnosticSeverity::INFORMATION,
5127 ) => true,
5128 (_, _) => false,
5129 }
5130 })
5131 // We want to sort by severity, in order to paint the most severe diagnostics last.
5132 .sorted_by_key(|diagnostic| {
5133 std::cmp::Reverse(diagnostic.diagnostic.severity)
5134 });
5135
5136 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5137 let start_display = diagnostic
5138 .range
5139 .start
5140 .to_display_point(&snapshot.display_snapshot);
5141 let end_display = diagnostic
5142 .range
5143 .end
5144 .to_display_point(&snapshot.display_snapshot);
5145 let color = match diagnostic.diagnostic.severity {
5146 DiagnosticSeverity::ERROR => theme.status().error,
5147 DiagnosticSeverity::WARNING => theme.status().warning,
5148 DiagnosticSeverity::INFORMATION => theme.status().info,
5149 _ => theme.status().hint,
5150 };
5151 ColoredRange {
5152 start: start_display.row(),
5153 end: end_display.row(),
5154 color,
5155 }
5156 });
5157 marker_quads.extend(
5158 scrollbar_layout
5159 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5160 );
5161 }
5162
5163 Arc::from(marker_quads)
5164 })
5165 .await;
5166
5167 editor.update(cx, |editor, cx| {
5168 editor.scrollbar_marker_state.markers = scrollbar_markers;
5169 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5170 editor.scrollbar_marker_state.pending_refresh = None;
5171 cx.notify();
5172 })?;
5173
5174 Ok(())
5175 }));
5176 });
5177 }
5178
5179 fn paint_highlighted_range(
5180 &self,
5181 range: Range<DisplayPoint>,
5182 color: Hsla,
5183 corner_radius: Pixels,
5184 line_end_overshoot: Pixels,
5185 layout: &EditorLayout,
5186 window: &mut Window,
5187 ) {
5188 let start_row = layout.visible_display_row_range.start;
5189 let end_row = layout.visible_display_row_range.end;
5190 if range.start != range.end {
5191 let row_range = if range.end.column() == 0 {
5192 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5193 } else {
5194 cmp::max(range.start.row(), start_row)
5195 ..cmp::min(range.end.row().next_row(), end_row)
5196 };
5197
5198 let highlighted_range = HighlightedRange {
5199 color,
5200 line_height: layout.position_map.line_height,
5201 corner_radius,
5202 start_y: layout.content_origin.y
5203 + row_range.start.as_f32() * layout.position_map.line_height
5204 - layout.position_map.scroll_pixel_position.y,
5205 lines: row_range
5206 .iter_rows()
5207 .map(|row| {
5208 let line_layout =
5209 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5210 HighlightedRangeLine {
5211 start_x: if row == range.start.row() {
5212 layout.content_origin.x
5213 + line_layout.x_for_index(range.start.column() as usize)
5214 - layout.position_map.scroll_pixel_position.x
5215 } else {
5216 layout.content_origin.x
5217 - layout.position_map.scroll_pixel_position.x
5218 },
5219 end_x: if row == range.end.row() {
5220 layout.content_origin.x
5221 + line_layout.x_for_index(range.end.column() as usize)
5222 - layout.position_map.scroll_pixel_position.x
5223 } else {
5224 layout.content_origin.x + line_layout.width + line_end_overshoot
5225 - layout.position_map.scroll_pixel_position.x
5226 },
5227 }
5228 })
5229 .collect(),
5230 };
5231
5232 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5233 }
5234 }
5235
5236 fn paint_inline_diagnostics(
5237 &mut self,
5238 layout: &mut EditorLayout,
5239 window: &mut Window,
5240 cx: &mut App,
5241 ) {
5242 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5243 inline_diagnostic.1.paint(window, cx);
5244 }
5245 }
5246
5247 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5248 if let Some(mut inline_blame) = layout.inline_blame.take() {
5249 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5250 inline_blame.paint(window, cx);
5251 })
5252 }
5253 }
5254
5255 fn paint_diff_hunk_controls(
5256 &mut self,
5257 layout: &mut EditorLayout,
5258 window: &mut Window,
5259 cx: &mut App,
5260 ) {
5261 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5262 diff_hunk_control.paint(window, cx);
5263 }
5264 }
5265
5266 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5267 for mut block in layout.blocks.drain(..) {
5268 block.element.paint(window, cx);
5269 }
5270 }
5271
5272 fn paint_inline_completion_popover(
5273 &mut self,
5274 layout: &mut EditorLayout,
5275 window: &mut Window,
5276 cx: &mut App,
5277 ) {
5278 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5279 inline_completion_popover.paint(window, cx);
5280 }
5281 }
5282
5283 fn paint_mouse_context_menu(
5284 &mut self,
5285 layout: &mut EditorLayout,
5286 window: &mut Window,
5287 cx: &mut App,
5288 ) {
5289 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5290 mouse_context_menu.paint(window, cx);
5291 }
5292 }
5293
5294 fn paint_scroll_wheel_listener(
5295 &mut self,
5296 layout: &EditorLayout,
5297 window: &mut Window,
5298 cx: &mut App,
5299 ) {
5300 window.on_mouse_event({
5301 let position_map = layout.position_map.clone();
5302 let editor = self.editor.clone();
5303 let hitbox = layout.hitbox.clone();
5304 let mut delta = ScrollDelta::default();
5305
5306 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5307 // accidentally turn off their scrolling.
5308 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5309
5310 move |event: &ScrollWheelEvent, phase, window, cx| {
5311 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5312 delta = delta.coalesce(event.delta);
5313 editor.update(cx, |editor, cx| {
5314 let position_map: &PositionMap = &position_map;
5315
5316 let line_height = position_map.line_height;
5317 let max_glyph_width = position_map.em_width;
5318 let (delta, axis) = match delta {
5319 gpui::ScrollDelta::Pixels(mut pixels) => {
5320 //Trackpad
5321 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5322 (pixels, axis)
5323 }
5324
5325 gpui::ScrollDelta::Lines(lines) => {
5326 //Not trackpad
5327 let pixels =
5328 point(lines.x * max_glyph_width, lines.y * line_height);
5329 (pixels, None)
5330 }
5331 };
5332
5333 let current_scroll_position = position_map.snapshot.scroll_position();
5334 let x = (current_scroll_position.x * max_glyph_width
5335 - (delta.x * scroll_sensitivity))
5336 / max_glyph_width;
5337 let y = (current_scroll_position.y * line_height
5338 - (delta.y * scroll_sensitivity))
5339 / line_height;
5340 let mut scroll_position =
5341 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5342 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5343 if forbid_vertical_scroll {
5344 scroll_position.y = current_scroll_position.y;
5345 }
5346
5347 if scroll_position != current_scroll_position {
5348 editor.scroll(scroll_position, axis, window, cx);
5349 cx.stop_propagation();
5350 } else if y < 0. {
5351 // Due to clamping, we may fail to detect cases of overscroll to the top;
5352 // We want the scroll manager to get an update in such cases and detect the change of direction
5353 // on the next frame.
5354 cx.notify();
5355 }
5356 });
5357 }
5358 }
5359 });
5360 }
5361
5362 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5363 self.paint_scroll_wheel_listener(layout, window, cx);
5364
5365 window.on_mouse_event({
5366 let position_map = layout.position_map.clone();
5367 let editor = self.editor.clone();
5368 let diff_hunk_range =
5369 layout
5370 .display_hunks
5371 .iter()
5372 .find_map(|(hunk, hunk_hitbox)| match hunk {
5373 DisplayDiffHunk::Folded { .. } => None,
5374 DisplayDiffHunk::Unfolded {
5375 multi_buffer_range, ..
5376 } => {
5377 if hunk_hitbox
5378 .as_ref()
5379 .map(|hitbox| hitbox.is_hovered(window))
5380 .unwrap_or(false)
5381 {
5382 Some(multi_buffer_range.clone())
5383 } else {
5384 None
5385 }
5386 }
5387 });
5388 let line_numbers = layout.line_numbers.clone();
5389
5390 move |event: &MouseDownEvent, phase, window, cx| {
5391 if phase == DispatchPhase::Bubble {
5392 match event.button {
5393 MouseButton::Left => editor.update(cx, |editor, cx| {
5394 let pending_mouse_down = editor
5395 .pending_mouse_down
5396 .get_or_insert_with(Default::default)
5397 .clone();
5398
5399 *pending_mouse_down.borrow_mut() = Some(event.clone());
5400
5401 Self::mouse_left_down(
5402 editor,
5403 event,
5404 diff_hunk_range.clone(),
5405 &position_map,
5406 line_numbers.as_ref(),
5407 window,
5408 cx,
5409 );
5410 }),
5411 MouseButton::Right => editor.update(cx, |editor, cx| {
5412 Self::mouse_right_down(editor, event, &position_map, window, cx);
5413 }),
5414 MouseButton::Middle => editor.update(cx, |editor, cx| {
5415 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5416 }),
5417 _ => {}
5418 };
5419 }
5420 }
5421 });
5422
5423 window.on_mouse_event({
5424 let editor = self.editor.clone();
5425 let position_map = layout.position_map.clone();
5426
5427 move |event: &MouseUpEvent, phase, window, cx| {
5428 if phase == DispatchPhase::Bubble {
5429 editor.update(cx, |editor, cx| {
5430 Self::mouse_up(editor, event, &position_map, window, cx)
5431 });
5432 }
5433 }
5434 });
5435
5436 window.on_mouse_event({
5437 let editor = self.editor.clone();
5438 let position_map = layout.position_map.clone();
5439 let mut captured_mouse_down = None;
5440
5441 move |event: &MouseUpEvent, phase, window, cx| match phase {
5442 // Clear the pending mouse down during the capture phase,
5443 // so that it happens even if another event handler stops
5444 // propagation.
5445 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5446 let pending_mouse_down = editor
5447 .pending_mouse_down
5448 .get_or_insert_with(Default::default)
5449 .clone();
5450
5451 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5452 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5453 captured_mouse_down = pending_mouse_down.take();
5454 window.refresh();
5455 }
5456 }),
5457 // Fire click handlers during the bubble phase.
5458 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5459 if let Some(mouse_down) = captured_mouse_down.take() {
5460 let event = ClickEvent {
5461 down: mouse_down,
5462 up: event.clone(),
5463 };
5464 Self::click(editor, &event, &position_map, window, cx);
5465 }
5466 }),
5467 }
5468 });
5469
5470 window.on_mouse_event({
5471 let position_map = layout.position_map.clone();
5472 let editor = self.editor.clone();
5473
5474 move |event: &MouseMoveEvent, phase, window, cx| {
5475 if phase == DispatchPhase::Bubble {
5476 editor.update(cx, |editor, cx| {
5477 if editor.hover_state.focused(window, cx) {
5478 return;
5479 }
5480 if event.pressed_button == Some(MouseButton::Left)
5481 || event.pressed_button == Some(MouseButton::Middle)
5482 {
5483 Self::mouse_dragged(editor, event, &position_map, window, cx)
5484 }
5485
5486 Self::mouse_moved(editor, event, &position_map, window, cx)
5487 });
5488 }
5489 }
5490 });
5491 }
5492
5493 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5494 bounds.top_right().x - self.style.scrollbar_width
5495 }
5496
5497 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5498 let style = &self.style;
5499 let font_size = style.text.font_size.to_pixels(window.rem_size());
5500 let layout = window
5501 .text_system()
5502 .shape_line(
5503 SharedString::from(" ".repeat(column)),
5504 font_size,
5505 &[TextRun {
5506 len: column,
5507 font: style.text.font(),
5508 color: Hsla::default(),
5509 background_color: None,
5510 underline: None,
5511 strikethrough: None,
5512 }],
5513 )
5514 .unwrap();
5515
5516 layout.width
5517 }
5518
5519 fn max_line_number_width(
5520 &self,
5521 snapshot: &EditorSnapshot,
5522 window: &mut Window,
5523 cx: &mut App,
5524 ) -> Pixels {
5525 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5526 self.column_pixels(digit_count as usize, window, cx)
5527 }
5528
5529 fn shape_line_number(
5530 &self,
5531 text: SharedString,
5532 color: Hsla,
5533 window: &mut Window,
5534 ) -> anyhow::Result<ShapedLine> {
5535 let run = TextRun {
5536 len: text.len(),
5537 font: self.style.text.font(),
5538 color,
5539 background_color: None,
5540 underline: None,
5541 strikethrough: None,
5542 };
5543 window.text_system().shape_line(
5544 text,
5545 self.style.text.font_size.to_pixels(window.rem_size()),
5546 &[run],
5547 )
5548 }
5549
5550 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5551 let unstaged = status.has_secondary_hunk();
5552 let unstaged_hollow = ProjectSettings::get_global(cx)
5553 .git
5554 .hunk_style
5555 .map_or(false, |style| {
5556 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5557 });
5558
5559 unstaged == unstaged_hollow
5560 }
5561}
5562
5563fn header_jump_data(
5564 snapshot: &EditorSnapshot,
5565 block_row_start: DisplayRow,
5566 height: u32,
5567 for_excerpt: &ExcerptInfo,
5568) -> JumpData {
5569 let range = &for_excerpt.range;
5570 let buffer = &for_excerpt.buffer;
5571 let jump_anchor = range
5572 .primary
5573 .as_ref()
5574 .map_or(range.context.start, |primary| primary.start);
5575
5576 let excerpt_start = range.context.start;
5577 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5578 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5579 0
5580 } else {
5581 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5582 jump_position.row.saturating_sub(excerpt_start_point.row)
5583 };
5584
5585 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5586 .saturating_sub(
5587 snapshot
5588 .scroll_anchor
5589 .scroll_position(&snapshot.display_snapshot)
5590 .y as u32,
5591 );
5592
5593 JumpData::MultiBufferPoint {
5594 excerpt_id: for_excerpt.id,
5595 anchor: jump_anchor,
5596 position: jump_position,
5597 line_offset_from_top,
5598 }
5599}
5600
5601pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5602
5603impl AcceptEditPredictionBinding {
5604 pub fn keystroke(&self) -> Option<&Keystroke> {
5605 if let Some(binding) = self.0.as_ref() {
5606 match &binding.keystrokes() {
5607 [keystroke] => Some(keystroke),
5608 _ => None,
5609 }
5610 } else {
5611 None
5612 }
5613 }
5614}
5615
5616fn prepaint_gutter_button(
5617 button: IconButton,
5618 row: DisplayRow,
5619 line_height: Pixels,
5620 gutter_dimensions: &GutterDimensions,
5621 scroll_pixel_position: gpui::Point<Pixels>,
5622 gutter_hitbox: &Hitbox,
5623 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5624 window: &mut Window,
5625 cx: &mut App,
5626) -> AnyElement {
5627 let mut button = button.into_any_element();
5628
5629 let available_space = size(
5630 AvailableSpace::MinContent,
5631 AvailableSpace::Definite(line_height),
5632 );
5633 let indicator_size = button.layout_as_root(available_space, window, cx);
5634
5635 let blame_width = gutter_dimensions.git_blame_entries_width;
5636 let gutter_width = display_hunks
5637 .binary_search_by(|(hunk, _)| match hunk {
5638 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5639 DisplayDiffHunk::Unfolded {
5640 display_row_range, ..
5641 } => {
5642 if display_row_range.end <= row {
5643 Ordering::Less
5644 } else if display_row_range.start > row {
5645 Ordering::Greater
5646 } else {
5647 Ordering::Equal
5648 }
5649 }
5650 })
5651 .ok()
5652 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5653 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5654
5655 let mut x = left_offset;
5656 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5657 - indicator_size.width
5658 - left_offset;
5659 x += available_width / 2.;
5660
5661 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5662 y += (line_height - indicator_size.height) / 2.;
5663
5664 button.prepaint_as_root(
5665 gutter_hitbox.origin + point(x, y),
5666 available_space,
5667 window,
5668 cx,
5669 );
5670 button
5671}
5672
5673fn render_inline_blame_entry(
5674 editor: Entity<Editor>,
5675 blame: &gpui::Entity<GitBlame>,
5676 blame_entry: BlameEntry,
5677 style: &EditorStyle,
5678 cx: &mut App,
5679) -> AnyElement {
5680 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5681
5682 let author = blame_entry.author.as_deref().unwrap_or_default();
5683 let summary_enabled = ProjectSettings::get_global(cx)
5684 .git
5685 .show_inline_commit_summary();
5686
5687 let text = match blame_entry.summary.as_ref() {
5688 Some(summary) if summary_enabled => {
5689 format!("{}, {} - {}", author, relative_timestamp, summary)
5690 }
5691 _ => format!("{}, {}", author, relative_timestamp),
5692 };
5693 let blame = blame.clone();
5694 let blame_entry = blame_entry.clone();
5695
5696 h_flex()
5697 .id("inline-blame")
5698 .w_full()
5699 .font_family(style.text.font().family)
5700 .text_color(cx.theme().status().hint)
5701 .line_height(style.text.line_height)
5702 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5703 .child(text)
5704 .gap_2()
5705 .hoverable_tooltip(move |window, cx| {
5706 let details = blame.read(cx).details_for_entry(&blame_entry);
5707 let tooltip =
5708 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5709 editor.update(cx, |editor, _| {
5710 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5711 });
5712 tooltip.into()
5713 })
5714 .into_any()
5715}
5716
5717fn render_blame_entry(
5718 ix: usize,
5719 blame: &gpui::Entity<GitBlame>,
5720 blame_entry: BlameEntry,
5721 style: &EditorStyle,
5722 last_used_color: &mut Option<(PlayerColor, Oid)>,
5723 editor: Entity<Editor>,
5724 cx: &mut App,
5725) -> AnyElement {
5726 let mut sha_color = cx
5727 .theme()
5728 .players()
5729 .color_for_participant(blame_entry.sha.into());
5730 // If the last color we used is the same as the one we get for this line, but
5731 // the commit SHAs are different, then we try again to get a different color.
5732 match *last_used_color {
5733 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5734 let index: u32 = blame_entry.sha.into();
5735 sha_color = cx.theme().players().color_for_participant(index + 1);
5736 }
5737 _ => {}
5738 };
5739 last_used_color.replace((sha_color, blame_entry.sha));
5740
5741 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5742
5743 let short_commit_id = blame_entry.sha.display_short();
5744
5745 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5746 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5747 let details = blame.read(cx).details_for_entry(&blame_entry);
5748
5749 h_flex()
5750 .w_full()
5751 .justify_between()
5752 .font_family(style.text.font().family)
5753 .line_height(style.text.line_height)
5754 .id(("blame", ix))
5755 .text_color(cx.theme().status().hint)
5756 .pr_2()
5757 .gap_2()
5758 .child(
5759 h_flex()
5760 .items_center()
5761 .gap_2()
5762 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5763 .child(name),
5764 )
5765 .child(relative_timestamp)
5766 .on_mouse_down(MouseButton::Right, {
5767 let blame_entry = blame_entry.clone();
5768 let details = details.clone();
5769 move |event, window, cx| {
5770 deploy_blame_entry_context_menu(
5771 &blame_entry,
5772 details.as_ref(),
5773 editor.clone(),
5774 event.position,
5775 window,
5776 cx,
5777 );
5778 }
5779 })
5780 .hover(|style| style.bg(cx.theme().colors().element_hover))
5781 .when_some(
5782 details
5783 .as_ref()
5784 .and_then(|details| details.permalink.clone()),
5785 |this, url| {
5786 this.cursor_pointer().on_click(move |_, _, cx| {
5787 cx.stop_propagation();
5788 cx.open_url(url.as_str())
5789 })
5790 },
5791 )
5792 .hoverable_tooltip(move |window, cx| {
5793 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5794 .into()
5795 })
5796 .into_any()
5797}
5798
5799fn deploy_blame_entry_context_menu(
5800 blame_entry: &BlameEntry,
5801 details: Option<&ParsedCommitMessage>,
5802 editor: Entity<Editor>,
5803 position: gpui::Point<Pixels>,
5804 window: &mut Window,
5805 cx: &mut App,
5806) {
5807 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5808 let sha = format!("{}", blame_entry.sha);
5809 menu.on_blur_subscription(Subscription::new(|| {}))
5810 .entry("Copy commit SHA", None, move |_, cx| {
5811 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5812 })
5813 .when_some(
5814 details.and_then(|details| details.permalink.clone()),
5815 |this, url| {
5816 this.entry("Open permalink", None, move |_, cx| {
5817 cx.open_url(url.as_str())
5818 })
5819 },
5820 )
5821 });
5822
5823 editor.update(cx, move |editor, cx| {
5824 editor.mouse_context_menu = Some(MouseContextMenu::new(
5825 MenuPosition::PinnedToScreen(position),
5826 context_menu,
5827 window,
5828 cx,
5829 ));
5830 cx.notify();
5831 });
5832}
5833
5834#[derive(Debug)]
5835pub(crate) struct LineWithInvisibles {
5836 fragments: SmallVec<[LineFragment; 1]>,
5837 invisibles: Vec<Invisible>,
5838 len: usize,
5839 pub(crate) width: Pixels,
5840 font_size: Pixels,
5841}
5842
5843#[allow(clippy::large_enum_variant)]
5844enum LineFragment {
5845 Text(ShapedLine),
5846 Element {
5847 element: Option<AnyElement>,
5848 size: Size<Pixels>,
5849 len: usize,
5850 },
5851}
5852
5853impl fmt::Debug for LineFragment {
5854 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5855 match self {
5856 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5857 LineFragment::Element { size, len, .. } => f
5858 .debug_struct("Element")
5859 .field("size", size)
5860 .field("len", len)
5861 .finish(),
5862 }
5863 }
5864}
5865
5866impl LineWithInvisibles {
5867 fn from_chunks<'a>(
5868 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5869 editor_style: &EditorStyle,
5870 max_line_len: usize,
5871 max_line_count: usize,
5872 editor_mode: EditorMode,
5873 text_width: Pixels,
5874 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5875 window: &mut Window,
5876 cx: &mut App,
5877 ) -> Vec<Self> {
5878 let text_style = &editor_style.text;
5879 let mut layouts = Vec::with_capacity(max_line_count);
5880 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5881 let mut line = String::new();
5882 let mut invisibles = Vec::new();
5883 let mut width = Pixels::ZERO;
5884 let mut len = 0;
5885 let mut styles = Vec::new();
5886 let mut non_whitespace_added = false;
5887 let mut row = 0;
5888 let mut line_exceeded_max_len = false;
5889 let font_size = text_style.font_size.to_pixels(window.rem_size());
5890
5891 let ellipsis = SharedString::from("⋯");
5892
5893 for highlighted_chunk in chunks.chain([HighlightedChunk {
5894 text: "\n",
5895 style: None,
5896 is_tab: false,
5897 replacement: None,
5898 }]) {
5899 if let Some(replacement) = highlighted_chunk.replacement {
5900 if !line.is_empty() {
5901 let shaped_line = window
5902 .text_system()
5903 .shape_line(line.clone().into(), font_size, &styles)
5904 .unwrap();
5905 width += shaped_line.width;
5906 len += shaped_line.len;
5907 fragments.push(LineFragment::Text(shaped_line));
5908 line.clear();
5909 styles.clear();
5910 }
5911
5912 match replacement {
5913 ChunkReplacement::Renderer(renderer) => {
5914 let available_width = if renderer.constrain_width {
5915 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5916 ellipsis.clone()
5917 } else {
5918 SharedString::from(Arc::from(highlighted_chunk.text))
5919 };
5920 let shaped_line = window
5921 .text_system()
5922 .shape_line(
5923 chunk,
5924 font_size,
5925 &[text_style.to_run(highlighted_chunk.text.len())],
5926 )
5927 .unwrap();
5928 AvailableSpace::Definite(shaped_line.width)
5929 } else {
5930 AvailableSpace::MinContent
5931 };
5932
5933 let mut element = (renderer.render)(&mut ChunkRendererContext {
5934 context: cx,
5935 window,
5936 max_width: text_width,
5937 });
5938 let line_height = text_style.line_height_in_pixels(window.rem_size());
5939 let size = element.layout_as_root(
5940 size(available_width, AvailableSpace::Definite(line_height)),
5941 window,
5942 cx,
5943 );
5944
5945 width += size.width;
5946 len += highlighted_chunk.text.len();
5947 fragments.push(LineFragment::Element {
5948 element: Some(element),
5949 size,
5950 len: highlighted_chunk.text.len(),
5951 });
5952 }
5953 ChunkReplacement::Str(x) => {
5954 let text_style = if let Some(style) = highlighted_chunk.style {
5955 Cow::Owned(text_style.clone().highlight(style))
5956 } else {
5957 Cow::Borrowed(text_style)
5958 };
5959
5960 let run = TextRun {
5961 len: x.len(),
5962 font: text_style.font(),
5963 color: text_style.color,
5964 background_color: text_style.background_color,
5965 underline: text_style.underline,
5966 strikethrough: text_style.strikethrough,
5967 };
5968 let line_layout = window
5969 .text_system()
5970 .shape_line(x, font_size, &[run])
5971 .unwrap()
5972 .with_len(highlighted_chunk.text.len());
5973
5974 width += line_layout.width;
5975 len += highlighted_chunk.text.len();
5976 fragments.push(LineFragment::Text(line_layout))
5977 }
5978 }
5979 } else {
5980 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5981 if ix > 0 {
5982 let shaped_line = window
5983 .text_system()
5984 .shape_line(line.clone().into(), font_size, &styles)
5985 .unwrap();
5986 width += shaped_line.width;
5987 len += shaped_line.len;
5988 fragments.push(LineFragment::Text(shaped_line));
5989 layouts.push(Self {
5990 width: mem::take(&mut width),
5991 len: mem::take(&mut len),
5992 fragments: mem::take(&mut fragments),
5993 invisibles: std::mem::take(&mut invisibles),
5994 font_size,
5995 });
5996
5997 line.clear();
5998 styles.clear();
5999 row += 1;
6000 line_exceeded_max_len = false;
6001 non_whitespace_added = false;
6002 if row == max_line_count {
6003 return layouts;
6004 }
6005 }
6006
6007 if !line_chunk.is_empty() && !line_exceeded_max_len {
6008 let text_style = if let Some(style) = highlighted_chunk.style {
6009 Cow::Owned(text_style.clone().highlight(style))
6010 } else {
6011 Cow::Borrowed(text_style)
6012 };
6013
6014 if line.len() + line_chunk.len() > max_line_len {
6015 let mut chunk_len = max_line_len - line.len();
6016 while !line_chunk.is_char_boundary(chunk_len) {
6017 chunk_len -= 1;
6018 }
6019 line_chunk = &line_chunk[..chunk_len];
6020 line_exceeded_max_len = true;
6021 }
6022
6023 styles.push(TextRun {
6024 len: line_chunk.len(),
6025 font: text_style.font(),
6026 color: text_style.color,
6027 background_color: text_style.background_color,
6028 underline: text_style.underline,
6029 strikethrough: text_style.strikethrough,
6030 });
6031
6032 if editor_mode == EditorMode::Full {
6033 // Line wrap pads its contents with fake whitespaces,
6034 // avoid printing them
6035 let is_soft_wrapped = is_row_soft_wrapped(row);
6036 if highlighted_chunk.is_tab {
6037 if non_whitespace_added || !is_soft_wrapped {
6038 invisibles.push(Invisible::Tab {
6039 line_start_offset: line.len(),
6040 line_end_offset: line.len() + line_chunk.len(),
6041 });
6042 }
6043 } else {
6044 invisibles.extend(line_chunk.char_indices().filter_map(
6045 |(index, c)| {
6046 let is_whitespace = c.is_whitespace();
6047 non_whitespace_added |= !is_whitespace;
6048 if is_whitespace
6049 && (non_whitespace_added || !is_soft_wrapped)
6050 {
6051 Some(Invisible::Whitespace {
6052 line_offset: line.len() + index,
6053 })
6054 } else {
6055 None
6056 }
6057 },
6058 ))
6059 }
6060 }
6061
6062 line.push_str(line_chunk);
6063 }
6064 }
6065 }
6066 }
6067
6068 layouts
6069 }
6070
6071 fn prepaint(
6072 &mut self,
6073 line_height: Pixels,
6074 scroll_pixel_position: gpui::Point<Pixels>,
6075 row: DisplayRow,
6076 content_origin: gpui::Point<Pixels>,
6077 line_elements: &mut SmallVec<[AnyElement; 1]>,
6078 window: &mut Window,
6079 cx: &mut App,
6080 ) {
6081 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6082 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6083 for fragment in &mut self.fragments {
6084 match fragment {
6085 LineFragment::Text(line) => {
6086 fragment_origin.x += line.width;
6087 }
6088 LineFragment::Element { element, size, .. } => {
6089 let mut element = element
6090 .take()
6091 .expect("you can't prepaint LineWithInvisibles twice");
6092
6093 // Center the element vertically within the line.
6094 let mut element_origin = fragment_origin;
6095 element_origin.y += (line_height - size.height) / 2.;
6096 element.prepaint_at(element_origin, window, cx);
6097 line_elements.push(element);
6098
6099 fragment_origin.x += size.width;
6100 }
6101 }
6102 }
6103 }
6104
6105 fn draw(
6106 &self,
6107 layout: &EditorLayout,
6108 row: DisplayRow,
6109 content_origin: gpui::Point<Pixels>,
6110 whitespace_setting: ShowWhitespaceSetting,
6111 selection_ranges: &[Range<DisplayPoint>],
6112 window: &mut Window,
6113 cx: &mut App,
6114 ) {
6115 let line_height = layout.position_map.line_height;
6116 let line_y = line_height
6117 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6118
6119 let mut fragment_origin =
6120 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6121
6122 for fragment in &self.fragments {
6123 match fragment {
6124 LineFragment::Text(line) => {
6125 line.paint(fragment_origin, line_height, window, cx)
6126 .log_err();
6127 fragment_origin.x += line.width;
6128 }
6129 LineFragment::Element { size, .. } => {
6130 fragment_origin.x += size.width;
6131 }
6132 }
6133 }
6134
6135 self.draw_invisibles(
6136 selection_ranges,
6137 layout,
6138 content_origin,
6139 line_y,
6140 row,
6141 line_height,
6142 whitespace_setting,
6143 window,
6144 cx,
6145 );
6146 }
6147
6148 fn draw_background(
6149 &self,
6150 layout: &EditorLayout,
6151 row: DisplayRow,
6152 content_origin: gpui::Point<Pixels>,
6153 window: &mut Window,
6154 cx: &mut App,
6155 ) {
6156 let line_height = layout.position_map.line_height;
6157 let line_y = line_height
6158 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6159
6160 let mut fragment_origin =
6161 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6162
6163 for fragment in &self.fragments {
6164 match fragment {
6165 LineFragment::Text(line) => {
6166 line.paint_background(fragment_origin, line_height, window, cx)
6167 .log_err();
6168 fragment_origin.x += line.width;
6169 }
6170 LineFragment::Element { size, .. } => {
6171 fragment_origin.x += size.width;
6172 }
6173 }
6174 }
6175 }
6176
6177 fn draw_invisibles(
6178 &self,
6179 selection_ranges: &[Range<DisplayPoint>],
6180 layout: &EditorLayout,
6181 content_origin: gpui::Point<Pixels>,
6182 line_y: Pixels,
6183 row: DisplayRow,
6184 line_height: Pixels,
6185 whitespace_setting: ShowWhitespaceSetting,
6186 window: &mut Window,
6187 cx: &mut App,
6188 ) {
6189 let extract_whitespace_info = |invisible: &Invisible| {
6190 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6191 Invisible::Tab {
6192 line_start_offset,
6193 line_end_offset,
6194 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6195 Invisible::Whitespace { line_offset } => {
6196 (*line_offset, line_offset + 1, &layout.space_invisible)
6197 }
6198 };
6199
6200 let x_offset = self.x_for_index(token_offset);
6201 let invisible_offset =
6202 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6203 let origin = content_origin
6204 + gpui::point(
6205 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6206 line_y,
6207 );
6208
6209 (
6210 [token_offset, token_end_offset],
6211 Box::new(move |window: &mut Window, cx: &mut App| {
6212 invisible_symbol
6213 .paint(origin, line_height, window, cx)
6214 .log_err();
6215 }),
6216 )
6217 };
6218
6219 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6220 match whitespace_setting {
6221 ShowWhitespaceSetting::None => (),
6222 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6223 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6224 let invisible_point = DisplayPoint::new(row, start as u32);
6225 if !selection_ranges
6226 .iter()
6227 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6228 {
6229 return;
6230 }
6231
6232 paint(window, cx);
6233 }),
6234
6235 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6236 // - It is a tab
6237 // - It is adjacent to an edge (start or end)
6238 // - It is adjacent to a whitespace (left or right)
6239 ShowWhitespaceSetting::Boundary => {
6240 // 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
6241 // the above cases.
6242 // Note: We zip in the original `invisibles` to check for tab equality
6243 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6244 for (([start, end], paint), invisible) in
6245 invisible_iter.zip_eq(self.invisibles.iter())
6246 {
6247 let should_render = match (&last_seen, invisible) {
6248 (_, Invisible::Tab { .. }) => true,
6249 (Some((_, last_end, _)), _) => *last_end == start,
6250 _ => false,
6251 };
6252
6253 if should_render || start == 0 || end == self.len {
6254 paint(window, cx);
6255
6256 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6257 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6258 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6259 // Note that we need to make sure that the last one is actually adjacent
6260 if !should_render_last && last_end == start {
6261 paint_last(window, cx);
6262 }
6263 }
6264 }
6265
6266 // Manually render anything within a selection
6267 let invisible_point = DisplayPoint::new(row, start as u32);
6268 if selection_ranges.iter().any(|region| {
6269 region.start <= invisible_point && invisible_point < region.end
6270 }) {
6271 paint(window, cx);
6272 }
6273
6274 last_seen = Some((should_render, end, paint));
6275 }
6276 }
6277 }
6278 }
6279
6280 pub fn x_for_index(&self, index: usize) -> Pixels {
6281 let mut fragment_start_x = Pixels::ZERO;
6282 let mut fragment_start_index = 0;
6283
6284 for fragment in &self.fragments {
6285 match fragment {
6286 LineFragment::Text(shaped_line) => {
6287 let fragment_end_index = fragment_start_index + shaped_line.len;
6288 if index < fragment_end_index {
6289 return fragment_start_x
6290 + shaped_line.x_for_index(index - fragment_start_index);
6291 }
6292 fragment_start_x += shaped_line.width;
6293 fragment_start_index = fragment_end_index;
6294 }
6295 LineFragment::Element { len, size, .. } => {
6296 let fragment_end_index = fragment_start_index + len;
6297 if index < fragment_end_index {
6298 return fragment_start_x;
6299 }
6300 fragment_start_x += size.width;
6301 fragment_start_index = fragment_end_index;
6302 }
6303 }
6304 }
6305
6306 fragment_start_x
6307 }
6308
6309 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6310 let mut fragment_start_x = Pixels::ZERO;
6311 let mut fragment_start_index = 0;
6312
6313 for fragment in &self.fragments {
6314 match fragment {
6315 LineFragment::Text(shaped_line) => {
6316 let fragment_end_x = fragment_start_x + shaped_line.width;
6317 if x < fragment_end_x {
6318 return Some(
6319 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6320 );
6321 }
6322 fragment_start_x = fragment_end_x;
6323 fragment_start_index += shaped_line.len;
6324 }
6325 LineFragment::Element { len, size, .. } => {
6326 let fragment_end_x = fragment_start_x + size.width;
6327 if x < fragment_end_x {
6328 return Some(fragment_start_index);
6329 }
6330 fragment_start_index += len;
6331 fragment_start_x = fragment_end_x;
6332 }
6333 }
6334 }
6335
6336 None
6337 }
6338
6339 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6340 let mut fragment_start_index = 0;
6341
6342 for fragment in &self.fragments {
6343 match fragment {
6344 LineFragment::Text(shaped_line) => {
6345 let fragment_end_index = fragment_start_index + shaped_line.len;
6346 if index < fragment_end_index {
6347 return shaped_line.font_id_for_index(index - fragment_start_index);
6348 }
6349 fragment_start_index = fragment_end_index;
6350 }
6351 LineFragment::Element { len, .. } => {
6352 let fragment_end_index = fragment_start_index + len;
6353 if index < fragment_end_index {
6354 return None;
6355 }
6356 fragment_start_index = fragment_end_index;
6357 }
6358 }
6359 }
6360
6361 None
6362 }
6363}
6364
6365#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6366enum Invisible {
6367 /// A tab character
6368 ///
6369 /// A tab character is internally represented by spaces (configured by the user's tab width)
6370 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6371 /// adjacency checks.
6372 Tab {
6373 line_start_offset: usize,
6374 line_end_offset: usize,
6375 },
6376 Whitespace {
6377 line_offset: usize,
6378 },
6379}
6380
6381impl EditorElement {
6382 /// Returns the rem size to use when rendering the [`EditorElement`].
6383 ///
6384 /// This allows UI elements to scale based on the `buffer_font_size`.
6385 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6386 match self.editor.read(cx).mode {
6387 EditorMode::Full => {
6388 let buffer_font_size = self.style.text.font_size;
6389 match buffer_font_size {
6390 AbsoluteLength::Pixels(pixels) => {
6391 let rem_size_scale = {
6392 // Our default UI font size is 14px on a 16px base scale.
6393 // This means the default UI font size is 0.875rems.
6394 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6395
6396 // We then determine the delta between a single rem and the default font
6397 // size scale.
6398 let default_font_size_delta = 1. - default_font_size_scale;
6399
6400 // Finally, we add this delta to 1rem to get the scale factor that
6401 // should be used to scale up the UI.
6402 1. + default_font_size_delta
6403 };
6404
6405 Some(pixels * rem_size_scale)
6406 }
6407 AbsoluteLength::Rems(rems) => {
6408 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6409 }
6410 }
6411 }
6412 // We currently use single-line and auto-height editors in UI contexts,
6413 // so we don't want to scale everything with the buffer font size, as it
6414 // ends up looking off.
6415 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6416 }
6417 }
6418}
6419
6420impl Element for EditorElement {
6421 type RequestLayoutState = ();
6422 type PrepaintState = EditorLayout;
6423
6424 fn id(&self) -> Option<ElementId> {
6425 None
6426 }
6427
6428 fn request_layout(
6429 &mut self,
6430 _: Option<&GlobalElementId>,
6431 window: &mut Window,
6432 cx: &mut App,
6433 ) -> (gpui::LayoutId, ()) {
6434 let rem_size = self.rem_size(cx);
6435 window.with_rem_size(rem_size, |window| {
6436 self.editor.update(cx, |editor, cx| {
6437 editor.set_style(self.style.clone(), window, cx);
6438
6439 let layout_id = match editor.mode {
6440 EditorMode::SingleLine { auto_width } => {
6441 let rem_size = window.rem_size();
6442
6443 let height = self.style.text.line_height_in_pixels(rem_size);
6444 if auto_width {
6445 let editor_handle = cx.entity().clone();
6446 let style = self.style.clone();
6447 window.request_measured_layout(
6448 Style::default(),
6449 move |_, _, window, cx| {
6450 let editor_snapshot = editor_handle
6451 .update(cx, |editor, cx| editor.snapshot(window, cx));
6452 let line = Self::layout_lines(
6453 DisplayRow(0)..DisplayRow(1),
6454 &editor_snapshot,
6455 &style,
6456 px(f32::MAX),
6457 |_| false, // Single lines never soft wrap
6458 window,
6459 cx,
6460 )
6461 .pop()
6462 .unwrap();
6463
6464 let font_id =
6465 window.text_system().resolve_font(&style.text.font());
6466 let font_size =
6467 style.text.font_size.to_pixels(window.rem_size());
6468 let em_width =
6469 window.text_system().em_width(font_id, font_size).unwrap();
6470
6471 size(line.width + em_width, height)
6472 },
6473 )
6474 } else {
6475 let mut style = Style::default();
6476 style.size.height = height.into();
6477 style.size.width = relative(1.).into();
6478 window.request_layout(style, None, cx)
6479 }
6480 }
6481 EditorMode::AutoHeight { max_lines } => {
6482 let editor_handle = cx.entity().clone();
6483 let max_line_number_width =
6484 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6485 window.request_measured_layout(
6486 Style::default(),
6487 move |known_dimensions, available_space, window, cx| {
6488 editor_handle
6489 .update(cx, |editor, cx| {
6490 compute_auto_height_layout(
6491 editor,
6492 max_lines,
6493 max_line_number_width,
6494 known_dimensions,
6495 available_space.width,
6496 window,
6497 cx,
6498 )
6499 })
6500 .unwrap_or_default()
6501 },
6502 )
6503 }
6504 EditorMode::Full => {
6505 let mut style = Style::default();
6506 style.size.width = relative(1.).into();
6507 style.size.height = relative(1.).into();
6508 window.request_layout(style, None, cx)
6509 }
6510 };
6511
6512 (layout_id, ())
6513 })
6514 })
6515 }
6516
6517 fn prepaint(
6518 &mut self,
6519 _: Option<&GlobalElementId>,
6520 bounds: Bounds<Pixels>,
6521 _: &mut Self::RequestLayoutState,
6522 window: &mut Window,
6523 cx: &mut App,
6524 ) -> Self::PrepaintState {
6525 let text_style = TextStyleRefinement {
6526 font_size: Some(self.style.text.font_size),
6527 line_height: Some(self.style.text.line_height),
6528 ..Default::default()
6529 };
6530 let focus_handle = self.editor.focus_handle(cx);
6531 window.set_view_id(self.editor.entity_id());
6532 window.set_focus_handle(&focus_handle, cx);
6533
6534 let rem_size = self.rem_size(cx);
6535 window.with_rem_size(rem_size, |window| {
6536 window.with_text_style(Some(text_style), |window| {
6537 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6538 let mut snapshot = self
6539 .editor
6540 .update(cx, |editor, cx| editor.snapshot(window, cx));
6541 let style = self.style.clone();
6542
6543 let font_id = window.text_system().resolve_font(&style.text.font());
6544 let font_size = style.text.font_size.to_pixels(window.rem_size());
6545 let line_height = style.text.line_height_in_pixels(window.rem_size());
6546 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6547 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6548
6549 let glyph_grid_cell = size(em_width, line_height);
6550
6551 let gutter_dimensions = snapshot
6552 .gutter_dimensions(
6553 font_id,
6554 font_size,
6555 self.max_line_number_width(&snapshot, window, cx),
6556 cx,
6557 )
6558 .unwrap_or_default();
6559 let text_width = bounds.size.width - gutter_dimensions.width;
6560
6561 let editor_width =
6562 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6563
6564 snapshot = self.editor.update(cx, |editor, cx| {
6565 editor.last_bounds = Some(bounds);
6566 editor.gutter_dimensions = gutter_dimensions;
6567 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6568
6569 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6570 snapshot
6571 } else {
6572 let wrap_width = match editor.soft_wrap_mode(cx) {
6573 SoftWrap::GitDiff => None,
6574 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6575 SoftWrap::EditorWidth => Some(editor_width),
6576 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6577 SoftWrap::Bounded(column) => {
6578 Some(editor_width.min(column as f32 * em_advance))
6579 }
6580 };
6581
6582 if editor.set_wrap_width(wrap_width, cx) {
6583 editor.snapshot(window, cx)
6584 } else {
6585 snapshot
6586 }
6587 }
6588 });
6589
6590 let wrap_guides = self
6591 .editor
6592 .read(cx)
6593 .wrap_guides(cx)
6594 .iter()
6595 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6596 .collect::<SmallVec<[_; 2]>>();
6597
6598 let hitbox = window.insert_hitbox(bounds, false);
6599 let gutter_hitbox =
6600 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6601 let text_hitbox = window.insert_hitbox(
6602 Bounds {
6603 origin: gutter_hitbox.top_right(),
6604 size: size(text_width, bounds.size.height),
6605 },
6606 false,
6607 );
6608
6609 // Offset the content_bounds from the text_bounds by the gutter margin (which
6610 // is roughly half a character wide) to make hit testing work more like how we want.
6611 let content_origin =
6612 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6613
6614 let scrollbar_bounds =
6615 Bounds::from_corners(content_origin, bounds.bottom_right());
6616
6617 let height_in_lines = scrollbar_bounds.size.height / line_height;
6618
6619 let max_row = snapshot.max_point().row().as_f32();
6620
6621 // The max scroll position for the top of the window
6622 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6623 (max_row - height_in_lines + 1.).max(0.)
6624 } else {
6625 let settings = EditorSettings::get_global(cx);
6626 match settings.scroll_beyond_last_line {
6627 ScrollBeyondLastLine::OnePage => max_row,
6628 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6629 ScrollBeyondLastLine::VerticalScrollMargin => {
6630 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6631 .max(0.)
6632 }
6633 }
6634 };
6635
6636 // TODO: Autoscrolling for both axes
6637 let mut autoscroll_request = None;
6638 let mut autoscroll_containing_element = false;
6639 let mut autoscroll_horizontally = false;
6640 self.editor.update(cx, |editor, cx| {
6641 autoscroll_request = editor.autoscroll_request();
6642 autoscroll_containing_element =
6643 autoscroll_request.is_some() || editor.has_pending_selection();
6644 // TODO: Is this horizontal or vertical?!
6645 autoscroll_horizontally = editor.autoscroll_vertically(
6646 bounds,
6647 line_height,
6648 max_scroll_top,
6649 window,
6650 cx,
6651 );
6652 snapshot = editor.snapshot(window, cx);
6653 });
6654
6655 let mut scroll_position = snapshot.scroll_position();
6656 // The scroll position is a fractional point, the whole number of which represents
6657 // the top of the window in terms of display rows.
6658 let start_row = DisplayRow(scroll_position.y as u32);
6659 let max_row = snapshot.max_point().row();
6660 let end_row = cmp::min(
6661 (scroll_position.y + height_in_lines).ceil() as u32,
6662 max_row.next_row().0,
6663 );
6664 let end_row = DisplayRow(end_row);
6665
6666 let row_infos = snapshot
6667 .row_infos(start_row)
6668 .take((start_row..end_row).len())
6669 .collect::<Vec<RowInfo>>();
6670 let is_row_soft_wrapped = |row: usize| {
6671 row_infos
6672 .get(row)
6673 .map_or(true, |info| info.buffer_row.is_none())
6674 };
6675
6676 let start_anchor = if start_row == Default::default() {
6677 Anchor::min()
6678 } else {
6679 snapshot.buffer_snapshot.anchor_before(
6680 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6681 )
6682 };
6683 let end_anchor = if end_row > max_row {
6684 Anchor::max()
6685 } else {
6686 snapshot.buffer_snapshot.anchor_before(
6687 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6688 )
6689 };
6690
6691 let mut highlighted_rows = self
6692 .editor
6693 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6694
6695 let is_light = cx.theme().appearance().is_light();
6696
6697 for (ix, row_info) in row_infos.iter().enumerate() {
6698 let Some(diff_status) = row_info.diff_status else {
6699 continue;
6700 };
6701
6702 let background_color = match diff_status.kind {
6703 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6704 DiffHunkStatusKind::Deleted => {
6705 cx.theme().colors().version_control_deleted
6706 }
6707 DiffHunkStatusKind::Modified => {
6708 debug_panic!("modified diff status for row info");
6709 continue;
6710 }
6711 };
6712
6713 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6714
6715 let hollow_highlight = LineHighlight {
6716 background: (background_color.opacity(if is_light {
6717 0.08
6718 } else {
6719 0.06
6720 }))
6721 .into(),
6722 border: Some(if is_light {
6723 background_color.opacity(0.48)
6724 } else {
6725 background_color.opacity(0.36)
6726 }),
6727 };
6728
6729 let filled_highlight =
6730 solid_background(background_color.opacity(hunk_opacity)).into();
6731
6732 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6733 hollow_highlight
6734 } else {
6735 filled_highlight
6736 };
6737
6738 highlighted_rows
6739 .entry(start_row + DisplayRow(ix as u32))
6740 .or_insert(background);
6741 }
6742
6743 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6744 start_anchor..end_anchor,
6745 &snapshot.display_snapshot,
6746 cx.theme().colors(),
6747 );
6748 let highlighted_gutter_ranges =
6749 self.editor.read(cx).gutter_highlights_in_range(
6750 start_anchor..end_anchor,
6751 &snapshot.display_snapshot,
6752 cx,
6753 );
6754
6755 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6756 start_anchor..end_anchor,
6757 &snapshot.display_snapshot,
6758 cx,
6759 );
6760
6761 let (local_selections, selected_buffer_ids): (
6762 Vec<Selection<Point>>,
6763 Vec<BufferId>,
6764 ) = self.editor.update(cx, |editor, cx| {
6765 let all_selections = editor.selections.all::<Point>(cx);
6766 let selected_buffer_ids = if editor.is_singleton(cx) {
6767 Vec::new()
6768 } else {
6769 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6770
6771 for selection in all_selections {
6772 for buffer_id in snapshot
6773 .buffer_snapshot
6774 .buffer_ids_for_range(selection.range())
6775 {
6776 if selected_buffer_ids.last() != Some(&buffer_id) {
6777 selected_buffer_ids.push(buffer_id);
6778 }
6779 }
6780 }
6781
6782 selected_buffer_ids
6783 };
6784
6785 let mut selections = editor
6786 .selections
6787 .disjoint_in_range(start_anchor..end_anchor, cx);
6788 selections.extend(editor.selections.pending(cx));
6789
6790 (selections, selected_buffer_ids)
6791 });
6792
6793 let (selections, mut active_rows, newest_selection_head) = self
6794 .layout_selections(
6795 start_anchor,
6796 end_anchor,
6797 &local_selections,
6798 &snapshot,
6799 start_row,
6800 end_row,
6801 window,
6802 cx,
6803 );
6804 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6805 editor.active_breakpoints(start_row..end_row, window, cx)
6806 });
6807 if cx.has_flag::<Debugger>() {
6808 for display_row in breakpoint_rows.keys() {
6809 active_rows.entry(*display_row).or_default().breakpoint = true;
6810 }
6811 }
6812
6813 let line_numbers = self.layout_line_numbers(
6814 Some(&gutter_hitbox),
6815 gutter_dimensions,
6816 line_height,
6817 scroll_position,
6818 start_row..end_row,
6819 &row_infos,
6820 &active_rows,
6821 newest_selection_head,
6822 &snapshot,
6823 window,
6824 cx,
6825 );
6826
6827 // We add the gutter breakpoint indicator to breakpoint_rows after painting
6828 // line numbers so we don't paint a line number debug accent color if a user
6829 // has their mouse over that line when a breakpoint isn't there
6830 if cx.has_flag::<Debugger>() {
6831 let gutter_breakpoint_indicator =
6832 self.editor.read(cx).gutter_breakpoint_indicator;
6833 if let Some(gutter_breakpoint_point) = gutter_breakpoint_indicator {
6834 breakpoint_rows
6835 .entry(gutter_breakpoint_point.row())
6836 .or_insert_with(|| {
6837 let position = snapshot.display_point_to_anchor(
6838 gutter_breakpoint_point,
6839 Bias::Left,
6840 );
6841 let breakpoint = Breakpoint::new_standard();
6842
6843 (position, breakpoint)
6844 });
6845 }
6846 }
6847
6848 let mut expand_toggles =
6849 window.with_element_namespace("expand_toggles", |window| {
6850 self.layout_expand_toggles(
6851 &gutter_hitbox,
6852 gutter_dimensions,
6853 em_width,
6854 line_height,
6855 scroll_position,
6856 &row_infos,
6857 window,
6858 cx,
6859 )
6860 });
6861
6862 let mut crease_toggles =
6863 window.with_element_namespace("crease_toggles", |window| {
6864 self.layout_crease_toggles(
6865 start_row..end_row,
6866 &row_infos,
6867 &active_rows,
6868 &snapshot,
6869 window,
6870 cx,
6871 )
6872 });
6873 let crease_trailers =
6874 window.with_element_namespace("crease_trailers", |window| {
6875 self.layout_crease_trailers(
6876 row_infos.iter().copied(),
6877 &snapshot,
6878 window,
6879 cx,
6880 )
6881 });
6882
6883 let display_hunks = self.layout_gutter_diff_hunks(
6884 line_height,
6885 &gutter_hitbox,
6886 start_row..end_row,
6887 &snapshot,
6888 window,
6889 cx,
6890 );
6891
6892 let mut line_layouts = Self::layout_lines(
6893 start_row..end_row,
6894 &snapshot,
6895 &self.style,
6896 editor_width,
6897 is_row_soft_wrapped,
6898 window,
6899 cx,
6900 );
6901
6902 let longest_line_blame_width = self
6903 .editor
6904 .update(cx, |editor, cx| {
6905 if !editor.show_git_blame_inline {
6906 return None;
6907 }
6908 let blame = editor.blame.as_ref()?;
6909 let blame_entry = blame
6910 .update(cx, |blame, cx| {
6911 let row_infos =
6912 snapshot.row_infos(snapshot.longest_row()).next()?;
6913 blame.blame_for_rows(&[row_infos], cx).next()
6914 })
6915 .flatten()?;
6916 let mut element = render_inline_blame_entry(
6917 self.editor.clone(),
6918 blame,
6919 blame_entry,
6920 &style,
6921 cx,
6922 );
6923 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6924 Some(
6925 element
6926 .layout_as_root(AvailableSpace::min_size(), window, cx)
6927 .width
6928 + inline_blame_padding,
6929 )
6930 })
6931 .unwrap_or(Pixels::ZERO);
6932
6933 let longest_line_width = layout_line(
6934 snapshot.longest_row(),
6935 &snapshot,
6936 &style,
6937 editor_width,
6938 is_row_soft_wrapped,
6939 window,
6940 cx,
6941 )
6942 .width;
6943
6944 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
6945 scrollbar_bounds,
6946 glyph_grid_cell,
6947 size(longest_line_width, max_row.as_f32() * line_height),
6948 longest_line_blame_width,
6949 style.scrollbar_width,
6950 editor_width,
6951 EditorSettings::get_global(cx),
6952 );
6953
6954 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
6955
6956 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6957 snapshot.sticky_header_excerpt(scroll_position.y)
6958 } else {
6959 None
6960 };
6961 let sticky_header_excerpt_id =
6962 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6963
6964 let blocks = window.with_element_namespace("blocks", |window| {
6965 self.render_blocks(
6966 start_row..end_row,
6967 &snapshot,
6968 &hitbox,
6969 &text_hitbox,
6970 editor_width,
6971 &mut scroll_width,
6972 &gutter_dimensions,
6973 em_width,
6974 gutter_dimensions.full_width(),
6975 line_height,
6976 &line_layouts,
6977 &local_selections,
6978 &selected_buffer_ids,
6979 is_row_soft_wrapped,
6980 sticky_header_excerpt_id,
6981 window,
6982 cx,
6983 )
6984 });
6985 let mut blocks = match blocks {
6986 Ok(blocks) => blocks,
6987 Err(resized_blocks) => {
6988 self.editor.update(cx, |editor, cx| {
6989 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6990 });
6991 return self.prepaint(None, bounds, &mut (), window, cx);
6992 }
6993 };
6994
6995 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6996 window.with_element_namespace("blocks", |window| {
6997 self.layout_sticky_buffer_header(
6998 sticky_header_excerpt,
6999 scroll_position.y,
7000 line_height,
7001 &snapshot,
7002 &hitbox,
7003 &selected_buffer_ids,
7004 &blocks,
7005 window,
7006 cx,
7007 )
7008 })
7009 });
7010
7011 let start_buffer_row =
7012 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7013 let end_buffer_row =
7014 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7015
7016 let scroll_max = point(
7017 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7018 max_scroll_top,
7019 );
7020
7021 self.editor.update(cx, |editor, cx| {
7022 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7023
7024 let autoscrolled = if autoscroll_horizontally {
7025 editor.autoscroll_horizontally(
7026 start_row,
7027 editor_width - (glyph_grid_cell.width / 2.0)
7028 + style.scrollbar_width,
7029 scroll_width,
7030 em_width,
7031 &line_layouts,
7032 cx,
7033 )
7034 } else {
7035 false
7036 };
7037
7038 if clamped || autoscrolled {
7039 snapshot = editor.snapshot(window, cx);
7040 scroll_position = snapshot.scroll_position();
7041 }
7042 });
7043
7044 let scroll_pixel_position = point(
7045 scroll_position.x * em_width,
7046 scroll_position.y * line_height,
7047 );
7048
7049 let indent_guides = self.layout_indent_guides(
7050 content_origin,
7051 text_hitbox.origin,
7052 start_buffer_row..end_buffer_row,
7053 scroll_pixel_position,
7054 line_height,
7055 &snapshot,
7056 window,
7057 cx,
7058 );
7059
7060 let crease_trailers =
7061 window.with_element_namespace("crease_trailers", |window| {
7062 self.prepaint_crease_trailers(
7063 crease_trailers,
7064 &line_layouts,
7065 line_height,
7066 content_origin,
7067 scroll_pixel_position,
7068 em_width,
7069 window,
7070 cx,
7071 )
7072 });
7073
7074 let (inline_completion_popover, inline_completion_popover_origin) = self
7075 .editor
7076 .update(cx, |editor, cx| {
7077 editor.render_edit_prediction_popover(
7078 &text_hitbox.bounds,
7079 content_origin,
7080 &snapshot,
7081 start_row..end_row,
7082 scroll_position.y,
7083 scroll_position.y + height_in_lines,
7084 &line_layouts,
7085 line_height,
7086 scroll_pixel_position,
7087 newest_selection_head,
7088 editor_width,
7089 &style,
7090 window,
7091 cx,
7092 )
7093 })
7094 .unzip();
7095
7096 let mut inline_diagnostics = self.layout_inline_diagnostics(
7097 &line_layouts,
7098 &crease_trailers,
7099 content_origin,
7100 scroll_pixel_position,
7101 inline_completion_popover_origin,
7102 start_row,
7103 end_row,
7104 line_height,
7105 em_width,
7106 &style,
7107 window,
7108 cx,
7109 );
7110
7111 let mut inline_blame = None;
7112 if let Some(newest_selection_head) = newest_selection_head {
7113 let display_row = newest_selection_head.row();
7114 if (start_row..end_row).contains(&display_row) {
7115 let line_ix = display_row.minus(start_row) as usize;
7116 let row_info = &row_infos[line_ix];
7117 let line_layout = &line_layouts[line_ix];
7118 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7119 inline_blame = self.layout_inline_blame(
7120 display_row,
7121 row_info,
7122 line_layout,
7123 crease_trailer_layout,
7124 em_width,
7125 content_origin,
7126 scroll_pixel_position,
7127 line_height,
7128 window,
7129 cx,
7130 );
7131 if inline_blame.is_some() {
7132 // Blame overrides inline diagnostics
7133 inline_diagnostics.remove(&display_row);
7134 }
7135 }
7136 }
7137
7138 let blamed_display_rows = self.layout_blame_entries(
7139 &row_infos,
7140 em_width,
7141 scroll_position,
7142 line_height,
7143 &gutter_hitbox,
7144 gutter_dimensions.git_blame_entries_width,
7145 window,
7146 cx,
7147 );
7148
7149 self.editor.update(cx, |editor, cx| {
7150 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7151
7152 let autoscrolled = if autoscroll_horizontally {
7153 editor.autoscroll_horizontally(
7154 start_row,
7155 editor_width - (glyph_grid_cell.width / 2.0)
7156 + style.scrollbar_width,
7157 scroll_width,
7158 em_width,
7159 &line_layouts,
7160 cx,
7161 )
7162 } else {
7163 false
7164 };
7165
7166 if clamped || autoscrolled {
7167 snapshot = editor.snapshot(window, cx);
7168 scroll_position = snapshot.scroll_position();
7169 }
7170 });
7171
7172 let line_elements = self.prepaint_lines(
7173 start_row,
7174 &mut line_layouts,
7175 line_height,
7176 scroll_pixel_position,
7177 content_origin,
7178 window,
7179 cx,
7180 );
7181
7182 let mut block_start_rows = HashSet::default();
7183
7184 window.with_element_namespace("blocks", |window| {
7185 self.layout_blocks(
7186 &mut blocks,
7187 &mut block_start_rows,
7188 &hitbox,
7189 line_height,
7190 scroll_pixel_position,
7191 window,
7192 cx,
7193 );
7194 });
7195
7196 let cursors = self.collect_cursors(&snapshot, cx);
7197 let visible_row_range = start_row..end_row;
7198 let non_visible_cursors = cursors
7199 .iter()
7200 .any(|c| !visible_row_range.contains(&c.0.row()));
7201
7202 let visible_cursors = self.layout_visible_cursors(
7203 &snapshot,
7204 &selections,
7205 &block_start_rows,
7206 start_row..end_row,
7207 &line_layouts,
7208 &text_hitbox,
7209 content_origin,
7210 scroll_position,
7211 scroll_pixel_position,
7212 line_height,
7213 em_width,
7214 em_advance,
7215 autoscroll_containing_element,
7216 window,
7217 cx,
7218 );
7219
7220 let scrollbars_layout = self.layout_scrollbars(
7221 &snapshot,
7222 scrollbar_layout_information,
7223 scroll_position,
7224 non_visible_cursors,
7225 window,
7226 cx,
7227 );
7228
7229 let gutter_settings = EditorSettings::get_global(cx).gutter;
7230
7231 let mut code_actions_indicator = None;
7232 if let Some(newest_selection_head) = newest_selection_head {
7233 let newest_selection_point =
7234 newest_selection_head.to_point(&snapshot.display_snapshot);
7235
7236 if (start_row..end_row).contains(&newest_selection_head.row()) {
7237 self.layout_cursor_popovers(
7238 line_height,
7239 &text_hitbox,
7240 content_origin,
7241 start_row,
7242 scroll_pixel_position,
7243 &line_layouts,
7244 newest_selection_head,
7245 newest_selection_point,
7246 &style,
7247 window,
7248 cx,
7249 );
7250
7251 let show_code_actions = snapshot
7252 .show_code_actions
7253 .unwrap_or(gutter_settings.code_actions);
7254 if show_code_actions {
7255 let newest_selection_point =
7256 newest_selection_head.to_point(&snapshot.display_snapshot);
7257 if !snapshot
7258 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7259 {
7260 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7261 MultiBufferRow(newest_selection_point.row),
7262 );
7263 if let Some((buffer, range)) = buffer {
7264 let buffer_id = buffer.remote_id();
7265 let row = range.start.row;
7266 let has_test_indicator = self
7267 .editor
7268 .read(cx)
7269 .tasks
7270 .contains_key(&(buffer_id, row));
7271
7272 let has_expand_indicator = row_infos
7273 .get(
7274 (newest_selection_head.row() - start_row).0
7275 as usize,
7276 )
7277 .is_some_and(|row_info| row_info.expand_info.is_some());
7278
7279 if !has_test_indicator && !has_expand_indicator {
7280 code_actions_indicator = self
7281 .layout_code_actions_indicator(
7282 line_height,
7283 newest_selection_head,
7284 scroll_pixel_position,
7285 &gutter_dimensions,
7286 &gutter_hitbox,
7287 &mut breakpoint_rows,
7288 &display_hunks,
7289 window,
7290 cx,
7291 );
7292 }
7293 }
7294 }
7295 }
7296 }
7297 }
7298
7299 self.layout_gutter_menu(
7300 line_height,
7301 &text_hitbox,
7302 content_origin,
7303 scroll_pixel_position,
7304 gutter_dimensions.width - gutter_dimensions.left_padding,
7305 window,
7306 cx,
7307 );
7308
7309 let test_indicators = if gutter_settings.runnables {
7310 self.layout_run_indicators(
7311 line_height,
7312 start_row..end_row,
7313 &row_infos,
7314 scroll_pixel_position,
7315 &gutter_dimensions,
7316 &gutter_hitbox,
7317 &display_hunks,
7318 &snapshot,
7319 &mut breakpoint_rows,
7320 window,
7321 cx,
7322 )
7323 } else {
7324 Vec::new()
7325 };
7326
7327 let show_breakpoints = snapshot
7328 .show_breakpoints
7329 .unwrap_or(gutter_settings.breakpoints);
7330 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7331 self.layout_breakpoints(
7332 line_height,
7333 start_row..end_row,
7334 scroll_pixel_position,
7335 &gutter_dimensions,
7336 &gutter_hitbox,
7337 &display_hunks,
7338 &snapshot,
7339 breakpoint_rows,
7340 &row_infos,
7341 window,
7342 cx,
7343 )
7344 } else {
7345 vec![]
7346 };
7347
7348 self.layout_signature_help(
7349 &hitbox,
7350 content_origin,
7351 scroll_pixel_position,
7352 newest_selection_head,
7353 start_row,
7354 &line_layouts,
7355 line_height,
7356 em_width,
7357 window,
7358 cx,
7359 );
7360
7361 if !cx.has_active_drag() {
7362 self.layout_hover_popovers(
7363 &snapshot,
7364 &hitbox,
7365 &text_hitbox,
7366 start_row..end_row,
7367 content_origin,
7368 scroll_pixel_position,
7369 &line_layouts,
7370 line_height,
7371 em_width,
7372 window,
7373 cx,
7374 );
7375 }
7376
7377 let mouse_context_menu = self.layout_mouse_context_menu(
7378 &snapshot,
7379 start_row..end_row,
7380 content_origin,
7381 window,
7382 cx,
7383 );
7384
7385 window.with_element_namespace("crease_toggles", |window| {
7386 self.prepaint_crease_toggles(
7387 &mut crease_toggles,
7388 line_height,
7389 &gutter_dimensions,
7390 gutter_settings,
7391 scroll_pixel_position,
7392 &gutter_hitbox,
7393 window,
7394 cx,
7395 )
7396 });
7397
7398 window.with_element_namespace("expand_toggles", |window| {
7399 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7400 });
7401
7402 let invisible_symbol_font_size = font_size / 2.;
7403 let tab_invisible = window
7404 .text_system()
7405 .shape_line(
7406 "→".into(),
7407 invisible_symbol_font_size,
7408 &[TextRun {
7409 len: "→".len(),
7410 font: self.style.text.font(),
7411 color: cx.theme().colors().editor_invisible,
7412 background_color: None,
7413 underline: None,
7414 strikethrough: None,
7415 }],
7416 )
7417 .unwrap();
7418 let space_invisible = window
7419 .text_system()
7420 .shape_line(
7421 "•".into(),
7422 invisible_symbol_font_size,
7423 &[TextRun {
7424 len: "•".len(),
7425 font: self.style.text.font(),
7426 color: cx.theme().colors().editor_invisible,
7427 background_color: None,
7428 underline: None,
7429 strikethrough: None,
7430 }],
7431 )
7432 .unwrap();
7433
7434 let mode = snapshot.mode;
7435
7436 let position_map = Rc::new(PositionMap {
7437 size: bounds.size,
7438 visible_row_range,
7439 scroll_pixel_position,
7440 scroll_max,
7441 line_layouts,
7442 line_height,
7443 em_width,
7444 em_advance,
7445 snapshot,
7446 gutter_hitbox: gutter_hitbox.clone(),
7447 text_hitbox: text_hitbox.clone(),
7448 });
7449
7450 self.editor.update(cx, |editor, _| {
7451 editor.last_position_map = Some(position_map.clone())
7452 });
7453
7454 let diff_hunk_controls = self.layout_diff_hunk_controls(
7455 start_row..end_row,
7456 &row_infos,
7457 &text_hitbox,
7458 &position_map,
7459 newest_selection_head,
7460 line_height,
7461 scroll_pixel_position,
7462 &display_hunks,
7463 self.editor.clone(),
7464 window,
7465 cx,
7466 );
7467
7468 EditorLayout {
7469 mode,
7470 position_map,
7471 visible_display_row_range: start_row..end_row,
7472 wrap_guides,
7473 indent_guides,
7474 hitbox,
7475 gutter_hitbox,
7476 display_hunks,
7477 content_origin,
7478 scrollbars_layout,
7479 active_rows,
7480 highlighted_rows,
7481 highlighted_ranges,
7482 highlighted_gutter_ranges,
7483 redacted_ranges,
7484 line_elements,
7485 line_numbers,
7486 blamed_display_rows,
7487 inline_diagnostics,
7488 inline_blame,
7489 blocks,
7490 cursors,
7491 visible_cursors,
7492 selections,
7493 inline_completion_popover,
7494 diff_hunk_controls,
7495 mouse_context_menu,
7496 test_indicators,
7497 breakpoints,
7498 code_actions_indicator,
7499 crease_toggles,
7500 crease_trailers,
7501 tab_invisible,
7502 space_invisible,
7503 sticky_buffer_header,
7504 expand_toggles,
7505 }
7506 })
7507 })
7508 })
7509 }
7510
7511 fn paint(
7512 &mut self,
7513 _: Option<&GlobalElementId>,
7514 bounds: Bounds<gpui::Pixels>,
7515 _: &mut Self::RequestLayoutState,
7516 layout: &mut Self::PrepaintState,
7517 window: &mut Window,
7518 cx: &mut App,
7519 ) {
7520 let focus_handle = self.editor.focus_handle(cx);
7521 let key_context = self
7522 .editor
7523 .update(cx, |editor, cx| editor.key_context(window, cx));
7524
7525 window.set_key_context(key_context);
7526 window.handle_input(
7527 &focus_handle,
7528 ElementInputHandler::new(bounds, self.editor.clone()),
7529 cx,
7530 );
7531 self.register_actions(window, cx);
7532 self.register_key_listeners(window, cx, layout);
7533
7534 let text_style = TextStyleRefinement {
7535 font_size: Some(self.style.text.font_size),
7536 line_height: Some(self.style.text.line_height),
7537 ..Default::default()
7538 };
7539 let rem_size = self.rem_size(cx);
7540 window.with_rem_size(rem_size, |window| {
7541 window.with_text_style(Some(text_style), |window| {
7542 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7543 self.paint_mouse_listeners(layout, window, cx);
7544 self.paint_background(layout, window, cx);
7545 self.paint_indent_guides(layout, window, cx);
7546
7547 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7548 self.paint_blamed_display_rows(layout, window, cx);
7549 self.paint_line_numbers(layout, window, cx);
7550 }
7551
7552 self.paint_text(layout, window, cx);
7553
7554 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7555 self.paint_gutter_highlights(layout, window, cx);
7556 self.paint_gutter_indicators(layout, window, cx);
7557 }
7558
7559 if !layout.blocks.is_empty() {
7560 window.with_element_namespace("blocks", |window| {
7561 self.paint_blocks(layout, window, cx);
7562 });
7563 }
7564
7565 window.with_element_namespace("blocks", |window| {
7566 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7567 sticky_header.paint(window, cx)
7568 }
7569 });
7570
7571 self.paint_scrollbars(layout, window, cx);
7572 self.paint_inline_completion_popover(layout, window, cx);
7573 self.paint_mouse_context_menu(layout, window, cx);
7574 });
7575 })
7576 })
7577 }
7578}
7579
7580pub(super) fn gutter_bounds(
7581 editor_bounds: Bounds<Pixels>,
7582 gutter_dimensions: GutterDimensions,
7583) -> Bounds<Pixels> {
7584 Bounds {
7585 origin: editor_bounds.origin,
7586 size: size(gutter_dimensions.width, editor_bounds.size.height),
7587 }
7588}
7589
7590/// Holds information required for layouting the editor scrollbars.
7591struct ScrollbarLayoutInformation {
7592 /// The bounds of the editor text area.
7593 editor_text_bounds: Bounds<Pixels>,
7594 /// The available range to scroll within the document.
7595 scroll_range: Size<Pixels>,
7596 /// The space available for one glyph in the editor.
7597 glyph_grid_cell: Size<Pixels>,
7598}
7599
7600impl ScrollbarLayoutInformation {
7601 pub fn new(
7602 scrollbar_bounds: Bounds<Pixels>,
7603 glyph_grid_cell: Size<Pixels>,
7604 document_size: Size<Pixels>,
7605 longest_line_blame_width: Pixels,
7606 scrollbar_width: Pixels,
7607 editor_width: Pixels,
7608 settings: &EditorSettings,
7609 ) -> Self {
7610 let vertical_overscroll = match settings.scroll_beyond_last_line {
7611 ScrollBeyondLastLine::OnePage => scrollbar_bounds.size.height,
7612 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7613 ScrollBeyondLastLine::VerticalScrollMargin => {
7614 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7615 }
7616 };
7617
7618 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7619 glyph_grid_cell.width + scrollbar_width
7620 } else {
7621 px(0.0)
7622 };
7623
7624 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7625
7626 let scroll_range = document_size + overscroll;
7627
7628 ScrollbarLayoutInformation {
7629 editor_text_bounds: scrollbar_bounds,
7630 scroll_range,
7631 glyph_grid_cell,
7632 }
7633 }
7634}
7635
7636impl IntoElement for EditorElement {
7637 type Element = Self;
7638
7639 fn into_element(self) -> Self::Element {
7640 self
7641 }
7642}
7643
7644pub struct EditorLayout {
7645 position_map: Rc<PositionMap>,
7646 hitbox: Hitbox,
7647 gutter_hitbox: Hitbox,
7648 content_origin: gpui::Point<Pixels>,
7649 scrollbars_layout: Option<EditorScrollbars>,
7650 mode: EditorMode,
7651 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7652 indent_guides: Option<Vec<IndentGuideLayout>>,
7653 visible_display_row_range: Range<DisplayRow>,
7654 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7655 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7656 line_elements: SmallVec<[AnyElement; 1]>,
7657 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7658 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7659 blamed_display_rows: Option<Vec<AnyElement>>,
7660 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7661 inline_blame: Option<AnyElement>,
7662 blocks: Vec<BlockLayout>,
7663 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7664 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7665 redacted_ranges: Vec<Range<DisplayPoint>>,
7666 cursors: Vec<(DisplayPoint, Hsla)>,
7667 visible_cursors: Vec<CursorLayout>,
7668 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7669 code_actions_indicator: Option<AnyElement>,
7670 test_indicators: Vec<AnyElement>,
7671 breakpoints: Vec<AnyElement>,
7672 crease_toggles: Vec<Option<AnyElement>>,
7673 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7674 diff_hunk_controls: Vec<AnyElement>,
7675 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7676 inline_completion_popover: Option<AnyElement>,
7677 mouse_context_menu: Option<AnyElement>,
7678 tab_invisible: ShapedLine,
7679 space_invisible: ShapedLine,
7680 sticky_buffer_header: Option<AnyElement>,
7681}
7682
7683impl EditorLayout {
7684 fn line_end_overshoot(&self) -> Pixels {
7685 0.15 * self.position_map.line_height
7686 }
7687}
7688
7689struct LineNumberLayout {
7690 shaped_line: ShapedLine,
7691 hitbox: Option<Hitbox>,
7692}
7693
7694struct ColoredRange<T> {
7695 start: T,
7696 end: T,
7697 color: Hsla,
7698}
7699
7700impl Along for ScrollbarAxes {
7701 type Unit = bool;
7702
7703 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7704 match axis {
7705 ScrollbarAxis::Horizontal => self.horizontal,
7706 ScrollbarAxis::Vertical => self.vertical,
7707 }
7708 }
7709
7710 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
7711 match axis {
7712 ScrollbarAxis::Horizontal => ScrollbarAxes {
7713 horizontal: f(self.horizontal),
7714 vertical: self.vertical,
7715 },
7716 ScrollbarAxis::Vertical => ScrollbarAxes {
7717 horizontal: self.horizontal,
7718 vertical: f(self.vertical),
7719 },
7720 }
7721 }
7722}
7723
7724#[derive(Clone)]
7725struct EditorScrollbars {
7726 pub vertical: Option<ScrollbarLayout>,
7727 pub horizontal: Option<ScrollbarLayout>,
7728 pub visible: bool,
7729}
7730
7731impl EditorScrollbars {
7732 pub fn from_scrollbar_axes(
7733 settings_visibility: ScrollbarAxes,
7734 layout_information: &ScrollbarLayoutInformation,
7735 scroll_position: gpui::Point<f32>,
7736 scrollbar_width: Pixels,
7737 show_scrollbars: bool,
7738 window: &mut Window,
7739 ) -> Self {
7740 let ScrollbarLayoutInformation {
7741 editor_text_bounds,
7742 scroll_range,
7743 glyph_grid_cell,
7744 } = layout_information;
7745
7746 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
7747 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
7748 Corner::BottomLeft,
7749 editor_text_bounds.bottom_left(),
7750 size(
7751 if settings_visibility.vertical {
7752 editor_text_bounds.size.width - scrollbar_width
7753 } else {
7754 editor_text_bounds.size.width
7755 },
7756 scrollbar_width,
7757 ),
7758 ),
7759 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
7760 Corner::TopRight,
7761 editor_text_bounds.top_right(),
7762 size(scrollbar_width, editor_text_bounds.size.height),
7763 ),
7764 };
7765
7766 let mut create_scrollbar_layout = |axis| {
7767 settings_visibility
7768 .along(axis)
7769 .then(|| {
7770 (
7771 editor_text_bounds.size.along(axis),
7772 scroll_range.along(axis),
7773 )
7774 })
7775 .filter(|(editor_size, scroll_range)| {
7776 // The scrollbar should only be rendered if the content does
7777 // not entirely fit into the editor
7778 // However, this only applies to the horizontal scrollbar, as information about the
7779 // vertical scrollbar layout is always needed for scrollbar diagnostics.
7780 axis != ScrollbarAxis::Horizontal || editor_size < scroll_range
7781 })
7782 .map(|(editor_size, scroll_range)| {
7783 ScrollbarLayout::new(
7784 window.insert_hitbox(scrollbar_bounds_for(axis), false),
7785 editor_size,
7786 scroll_range,
7787 glyph_grid_cell.along(axis),
7788 scroll_position.along(axis),
7789 axis,
7790 )
7791 })
7792 };
7793
7794 Self {
7795 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
7796 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
7797 visible: show_scrollbars,
7798 }
7799 }
7800
7801 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
7802 [
7803 (&self.vertical, ScrollbarAxis::Vertical),
7804 (&self.horizontal, ScrollbarAxis::Horizontal),
7805 ]
7806 .into_iter()
7807 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
7808 }
7809
7810 /// Returns the currently hovered scrollbar axis, if any.
7811 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
7812 self.iter_scrollbars()
7813 .find(|s| s.0.hitbox.is_hovered(window))
7814 }
7815}
7816
7817#[derive(Clone)]
7818struct ScrollbarLayout {
7819 hitbox: Hitbox,
7820 visible_range: Range<f32>,
7821 text_unit_size: Pixels,
7822 thumb_size: Pixels,
7823 axis: ScrollbarAxis,
7824}
7825
7826impl ScrollbarLayout {
7827 const BORDER_WIDTH: Pixels = px(1.0);
7828 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7829 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7830 const MIN_THUMB_SIZE: Pixels = px(25.0);
7831
7832 fn new(
7833 scrollbar_track_hitbox: Hitbox,
7834 editor_size: Pixels,
7835 scroll_range: Pixels,
7836 glyph_space: Pixels,
7837 scroll_position: f32,
7838 axis: ScrollbarAxis,
7839 ) -> Self {
7840 let scrollbar_track_bounds = scrollbar_track_hitbox.bounds;
7841 let scrollbar_track_length = scrollbar_track_bounds.size.along(axis);
7842
7843 let text_units_per_page = editor_size / glyph_space;
7844 let visible_range = scroll_position..scroll_position + text_units_per_page;
7845 let total_text_units = scroll_range / glyph_space;
7846
7847 let thumb_percentage = text_units_per_page / total_text_units;
7848 let thumb_size = (scrollbar_track_length * thumb_percentage)
7849 .max(ScrollbarLayout::MIN_THUMB_SIZE)
7850 .min(scrollbar_track_length);
7851 let text_unit_size = (scrollbar_track_length - thumb_size)
7852 / (total_text_units - text_units_per_page).max(0.);
7853
7854 ScrollbarLayout {
7855 hitbox: scrollbar_track_hitbox,
7856 visible_range,
7857 text_unit_size,
7858 thumb_size,
7859 axis,
7860 }
7861 }
7862
7863 fn thumb_bounds(&self) -> Bounds<Pixels> {
7864 let scrollbar_track = &self.hitbox.bounds;
7865 Bounds::new(
7866 scrollbar_track
7867 .origin
7868 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
7869 scrollbar_track
7870 .size
7871 .apply_along(self.axis, |_| self.thumb_size),
7872 )
7873 }
7874
7875 fn thumb_origin(&self, origin: Pixels) -> Pixels {
7876 origin + self.visible_range.start * self.text_unit_size
7877 }
7878
7879 fn marker_quads_for_ranges(
7880 &self,
7881 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7882 column: Option<usize>,
7883 ) -> Vec<PaintQuad> {
7884 struct MinMax {
7885 min: Pixels,
7886 max: Pixels,
7887 }
7888 let (x_range, height_limit) = if let Some(column) = column {
7889 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7890 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7891 let end = start + column_width;
7892 (
7893 Range { start, end },
7894 MinMax {
7895 min: Self::MIN_MARKER_HEIGHT,
7896 max: px(f32::MAX),
7897 },
7898 )
7899 } else {
7900 (
7901 Range {
7902 start: Self::BORDER_WIDTH,
7903 end: self.hitbox.size.width,
7904 },
7905 MinMax {
7906 min: Self::LINE_MARKER_HEIGHT,
7907 max: Self::LINE_MARKER_HEIGHT,
7908 },
7909 )
7910 };
7911
7912 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7913 let mut pixel_ranges = row_ranges
7914 .into_iter()
7915 .map(|range| {
7916 let start_y = row_to_y(range.start);
7917 let end_y = row_to_y(range.end)
7918 + self
7919 .text_unit_size
7920 .max(height_limit.min)
7921 .min(height_limit.max);
7922 ColoredRange {
7923 start: start_y,
7924 end: end_y,
7925 color: range.color,
7926 }
7927 })
7928 .peekable();
7929
7930 let mut quads = Vec::new();
7931 while let Some(mut pixel_range) = pixel_ranges.next() {
7932 while let Some(next_pixel_range) = pixel_ranges.peek() {
7933 if pixel_range.end >= next_pixel_range.start - px(1.0)
7934 && pixel_range.color == next_pixel_range.color
7935 {
7936 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7937 pixel_ranges.next();
7938 } else {
7939 break;
7940 }
7941 }
7942
7943 let bounds = Bounds::from_corners(
7944 point(x_range.start, pixel_range.start),
7945 point(x_range.end, pixel_range.end),
7946 );
7947 quads.push(quad(
7948 bounds,
7949 Corners::default(),
7950 pixel_range.color,
7951 Edges::default(),
7952 Hsla::transparent_black(),
7953 BorderStyle::default(),
7954 ));
7955 }
7956
7957 quads
7958 }
7959}
7960
7961struct CreaseTrailerLayout {
7962 element: AnyElement,
7963 bounds: Bounds<Pixels>,
7964}
7965
7966pub(crate) struct PositionMap {
7967 pub size: Size<Pixels>,
7968 pub line_height: Pixels,
7969 pub scroll_pixel_position: gpui::Point<Pixels>,
7970 pub scroll_max: gpui::Point<f32>,
7971 pub em_width: Pixels,
7972 pub em_advance: Pixels,
7973 pub visible_row_range: Range<DisplayRow>,
7974 pub line_layouts: Vec<LineWithInvisibles>,
7975 pub snapshot: EditorSnapshot,
7976 pub text_hitbox: Hitbox,
7977 pub gutter_hitbox: Hitbox,
7978}
7979
7980#[derive(Debug, Copy, Clone)]
7981pub struct PointForPosition {
7982 pub previous_valid: DisplayPoint,
7983 pub next_valid: DisplayPoint,
7984 pub exact_unclipped: DisplayPoint,
7985 pub column_overshoot_after_line_end: u32,
7986}
7987
7988impl PointForPosition {
7989 pub fn as_valid(&self) -> Option<DisplayPoint> {
7990 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7991 Some(self.previous_valid)
7992 } else {
7993 None
7994 }
7995 }
7996}
7997
7998impl PositionMap {
7999 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8000 let text_bounds = self.text_hitbox.bounds;
8001 let scroll_position = self.snapshot.scroll_position();
8002 let position = position - text_bounds.origin;
8003 let y = position.y.max(px(0.)).min(self.size.height);
8004 let x = position.x + (scroll_position.x * self.em_width);
8005 let row = ((y / self.line_height) + scroll_position.y) as u32;
8006
8007 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8008 .line_layouts
8009 .get(row as usize - scroll_position.y as usize)
8010 {
8011 if let Some(ix) = line.index_for_x(x) {
8012 (ix as u32, px(0.))
8013 } else {
8014 (line.len as u32, px(0.).max(x - line.width))
8015 }
8016 } else {
8017 (0, x)
8018 };
8019
8020 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8021 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8022 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8023
8024 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8025 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8026 PointForPosition {
8027 previous_valid,
8028 next_valid,
8029 exact_unclipped,
8030 column_overshoot_after_line_end,
8031 }
8032 }
8033}
8034
8035struct BlockLayout {
8036 id: BlockId,
8037 row: Option<DisplayRow>,
8038 element: AnyElement,
8039 available_space: Size<AvailableSpace>,
8040 style: BlockStyle,
8041 is_buffer_header: bool,
8042}
8043
8044pub fn layout_line(
8045 row: DisplayRow,
8046 snapshot: &EditorSnapshot,
8047 style: &EditorStyle,
8048 text_width: Pixels,
8049 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8050 window: &mut Window,
8051 cx: &mut App,
8052) -> LineWithInvisibles {
8053 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8054 LineWithInvisibles::from_chunks(
8055 chunks,
8056 &style,
8057 MAX_LINE_LEN,
8058 1,
8059 snapshot.mode,
8060 text_width,
8061 is_row_soft_wrapped,
8062 window,
8063 cx,
8064 )
8065 .pop()
8066 .unwrap()
8067}
8068
8069#[derive(Debug)]
8070pub struct IndentGuideLayout {
8071 origin: gpui::Point<Pixels>,
8072 length: Pixels,
8073 single_indent_width: Pixels,
8074 depth: u32,
8075 active: bool,
8076 settings: IndentGuideSettings,
8077}
8078
8079pub struct CursorLayout {
8080 origin: gpui::Point<Pixels>,
8081 block_width: Pixels,
8082 line_height: Pixels,
8083 color: Hsla,
8084 shape: CursorShape,
8085 block_text: Option<ShapedLine>,
8086 cursor_name: Option<AnyElement>,
8087}
8088
8089#[derive(Debug)]
8090pub struct CursorName {
8091 string: SharedString,
8092 color: Hsla,
8093 is_top_row: bool,
8094}
8095
8096impl CursorLayout {
8097 pub fn new(
8098 origin: gpui::Point<Pixels>,
8099 block_width: Pixels,
8100 line_height: Pixels,
8101 color: Hsla,
8102 shape: CursorShape,
8103 block_text: Option<ShapedLine>,
8104 ) -> CursorLayout {
8105 CursorLayout {
8106 origin,
8107 block_width,
8108 line_height,
8109 color,
8110 shape,
8111 block_text,
8112 cursor_name: None,
8113 }
8114 }
8115
8116 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8117 Bounds {
8118 origin: self.origin + origin,
8119 size: size(self.block_width, self.line_height),
8120 }
8121 }
8122
8123 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8124 match self.shape {
8125 CursorShape::Bar => Bounds {
8126 origin: self.origin + origin,
8127 size: size(px(2.0), self.line_height),
8128 },
8129 CursorShape::Block | CursorShape::Hollow => Bounds {
8130 origin: self.origin + origin,
8131 size: size(self.block_width, self.line_height),
8132 },
8133 CursorShape::Underline => Bounds {
8134 origin: self.origin
8135 + origin
8136 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8137 size: size(self.block_width, px(2.0)),
8138 },
8139 }
8140 }
8141
8142 pub fn layout(
8143 &mut self,
8144 origin: gpui::Point<Pixels>,
8145 cursor_name: Option<CursorName>,
8146 window: &mut Window,
8147 cx: &mut App,
8148 ) {
8149 if let Some(cursor_name) = cursor_name {
8150 let bounds = self.bounds(origin);
8151 let text_size = self.line_height / 1.5;
8152
8153 let name_origin = if cursor_name.is_top_row {
8154 point(bounds.right() - px(1.), bounds.top())
8155 } else {
8156 match self.shape {
8157 CursorShape::Bar => point(
8158 bounds.right() - px(2.),
8159 bounds.top() - text_size / 2. - px(1.),
8160 ),
8161 _ => point(
8162 bounds.right() - px(1.),
8163 bounds.top() - text_size / 2. - px(1.),
8164 ),
8165 }
8166 };
8167 let mut name_element = div()
8168 .bg(self.color)
8169 .text_size(text_size)
8170 .px_0p5()
8171 .line_height(text_size + px(2.))
8172 .text_color(cursor_name.color)
8173 .child(cursor_name.string.clone())
8174 .into_any_element();
8175
8176 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8177
8178 self.cursor_name = Some(name_element);
8179 }
8180 }
8181
8182 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8183 let bounds = self.bounds(origin);
8184
8185 //Draw background or border quad
8186 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8187 outline(bounds, self.color, BorderStyle::Solid)
8188 } else {
8189 fill(bounds, self.color)
8190 };
8191
8192 if let Some(name) = &mut self.cursor_name {
8193 name.paint(window, cx);
8194 }
8195
8196 window.paint_quad(cursor);
8197
8198 if let Some(block_text) = &self.block_text {
8199 block_text
8200 .paint(self.origin + origin, self.line_height, window, cx)
8201 .log_err();
8202 }
8203 }
8204
8205 pub fn shape(&self) -> CursorShape {
8206 self.shape
8207 }
8208}
8209
8210#[derive(Debug)]
8211pub struct HighlightedRange {
8212 pub start_y: Pixels,
8213 pub line_height: Pixels,
8214 pub lines: Vec<HighlightedRangeLine>,
8215 pub color: Hsla,
8216 pub corner_radius: Pixels,
8217}
8218
8219#[derive(Debug)]
8220pub struct HighlightedRangeLine {
8221 pub start_x: Pixels,
8222 pub end_x: Pixels,
8223}
8224
8225impl HighlightedRange {
8226 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8227 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8228 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8229 self.paint_lines(
8230 self.start_y + self.line_height,
8231 &self.lines[1..],
8232 bounds,
8233 window,
8234 );
8235 } else {
8236 self.paint_lines(self.start_y, &self.lines, bounds, window);
8237 }
8238 }
8239
8240 fn paint_lines(
8241 &self,
8242 start_y: Pixels,
8243 lines: &[HighlightedRangeLine],
8244 _bounds: Bounds<Pixels>,
8245 window: &mut Window,
8246 ) {
8247 if lines.is_empty() {
8248 return;
8249 }
8250
8251 let first_line = lines.first().unwrap();
8252 let last_line = lines.last().unwrap();
8253
8254 let first_top_left = point(first_line.start_x, start_y);
8255 let first_top_right = point(first_line.end_x, start_y);
8256
8257 let curve_height = point(Pixels::ZERO, self.corner_radius);
8258 let curve_width = |start_x: Pixels, end_x: Pixels| {
8259 let max = (end_x - start_x) / 2.;
8260 let width = if max < self.corner_radius {
8261 max
8262 } else {
8263 self.corner_radius
8264 };
8265
8266 point(width, Pixels::ZERO)
8267 };
8268
8269 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8270 let mut builder = gpui::PathBuilder::fill();
8271 builder.move_to(first_top_right - top_curve_width);
8272 builder.curve_to(first_top_right + curve_height, first_top_right);
8273
8274 let mut iter = lines.iter().enumerate().peekable();
8275 while let Some((ix, line)) = iter.next() {
8276 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8277
8278 if let Some((_, next_line)) = iter.peek() {
8279 let next_top_right = point(next_line.end_x, bottom_right.y);
8280
8281 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8282 Ordering::Equal => {
8283 builder.line_to(bottom_right);
8284 }
8285 Ordering::Less => {
8286 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8287 builder.line_to(bottom_right - curve_height);
8288 if self.corner_radius > Pixels::ZERO {
8289 builder.curve_to(bottom_right - curve_width, bottom_right);
8290 }
8291 builder.line_to(next_top_right + curve_width);
8292 if self.corner_radius > Pixels::ZERO {
8293 builder.curve_to(next_top_right + curve_height, next_top_right);
8294 }
8295 }
8296 Ordering::Greater => {
8297 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8298 builder.line_to(bottom_right - curve_height);
8299 if self.corner_radius > Pixels::ZERO {
8300 builder.curve_to(bottom_right + curve_width, bottom_right);
8301 }
8302 builder.line_to(next_top_right - curve_width);
8303 if self.corner_radius > Pixels::ZERO {
8304 builder.curve_to(next_top_right + curve_height, next_top_right);
8305 }
8306 }
8307 }
8308 } else {
8309 let curve_width = curve_width(line.start_x, line.end_x);
8310 builder.line_to(bottom_right - curve_height);
8311 if self.corner_radius > Pixels::ZERO {
8312 builder.curve_to(bottom_right - curve_width, bottom_right);
8313 }
8314
8315 let bottom_left = point(line.start_x, bottom_right.y);
8316 builder.line_to(bottom_left + curve_width);
8317 if self.corner_radius > Pixels::ZERO {
8318 builder.curve_to(bottom_left - curve_height, bottom_left);
8319 }
8320 }
8321 }
8322
8323 if first_line.start_x > last_line.start_x {
8324 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8325 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8326 builder.line_to(second_top_left + curve_height);
8327 if self.corner_radius > Pixels::ZERO {
8328 builder.curve_to(second_top_left + curve_width, second_top_left);
8329 }
8330 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8331 builder.line_to(first_bottom_left - curve_width);
8332 if self.corner_radius > Pixels::ZERO {
8333 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8334 }
8335 }
8336
8337 builder.line_to(first_top_left + curve_height);
8338 if self.corner_radius > Pixels::ZERO {
8339 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8340 }
8341 builder.line_to(first_top_right - top_curve_width);
8342
8343 if let Ok(path) = builder.build() {
8344 window.paint_path(path, self.color);
8345 }
8346 }
8347}
8348
8349enum CursorPopoverType {
8350 CodeContextMenu,
8351 EditPrediction,
8352}
8353
8354pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8355 (delta.pow(1.5) / 100.0).into()
8356}
8357
8358fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8359 (delta.pow(1.2) / 300.0).into()
8360}
8361
8362pub fn register_action<T: Action>(
8363 editor: &Entity<Editor>,
8364 window: &mut Window,
8365 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8366) {
8367 let editor = editor.clone();
8368 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8369 let action = action.downcast_ref().unwrap();
8370 if phase == DispatchPhase::Bubble {
8371 editor.update(cx, |editor, cx| {
8372 listener(editor, action, window, cx);
8373 })
8374 }
8375 })
8376}
8377
8378fn compute_auto_height_layout(
8379 editor: &mut Editor,
8380 max_lines: usize,
8381 max_line_number_width: Pixels,
8382 known_dimensions: Size<Option<Pixels>>,
8383 available_width: AvailableSpace,
8384 window: &mut Window,
8385 cx: &mut Context<Editor>,
8386) -> Option<Size<Pixels>> {
8387 let width = known_dimensions.width.or({
8388 if let AvailableSpace::Definite(available_width) = available_width {
8389 Some(available_width)
8390 } else {
8391 None
8392 }
8393 })?;
8394 if let Some(height) = known_dimensions.height {
8395 return Some(size(width, height));
8396 }
8397
8398 let style = editor.style.as_ref().unwrap();
8399 let font_id = window.text_system().resolve_font(&style.text.font());
8400 let font_size = style.text.font_size.to_pixels(window.rem_size());
8401 let line_height = style.text.line_height_in_pixels(window.rem_size());
8402 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8403
8404 let mut snapshot = editor.snapshot(window, cx);
8405 let gutter_dimensions = snapshot
8406 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8407 .unwrap_or_default();
8408
8409 editor.gutter_dimensions = gutter_dimensions;
8410 let text_width = width - gutter_dimensions.width;
8411 let overscroll = size(em_width, px(0.));
8412
8413 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8414 if editor.set_wrap_width(Some(editor_width), cx) {
8415 snapshot = editor.snapshot(window, cx);
8416 }
8417
8418 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8419 let height = scroll_height
8420 .max(line_height)
8421 .min(line_height * max_lines as f32);
8422
8423 Some(size(width, height))
8424}
8425
8426#[cfg(test)]
8427mod tests {
8428 use super::*;
8429 use crate::{
8430 display_map::{BlockPlacement, BlockProperties},
8431 editor_tests::{init_test, update_test_language_settings},
8432 Editor, MultiBuffer,
8433 };
8434 use gpui::{TestAppContext, VisualTestContext};
8435 use language::language_settings;
8436 use log::info;
8437 use std::num::NonZeroU32;
8438 use util::test::sample_text;
8439
8440 #[gpui::test]
8441 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8442 init_test(cx, |_| {});
8443 let window = cx.add_window(|window, cx| {
8444 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8445 Editor::new(EditorMode::Full, buffer, None, window, cx)
8446 });
8447
8448 let editor = window.root(cx).unwrap();
8449 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8450 let line_height = window
8451 .update(cx, |_, window, _| {
8452 style.text.line_height_in_pixels(window.rem_size())
8453 })
8454 .unwrap();
8455 let element = EditorElement::new(&editor, style);
8456 let snapshot = window
8457 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8458 .unwrap();
8459
8460 let layouts = cx
8461 .update_window(*window, |_, window, cx| {
8462 element.layout_line_numbers(
8463 None,
8464 GutterDimensions {
8465 left_padding: Pixels::ZERO,
8466 right_padding: Pixels::ZERO,
8467 width: px(30.0),
8468 margin: Pixels::ZERO,
8469 git_blame_entries_width: None,
8470 },
8471 line_height,
8472 gpui::Point::default(),
8473 DisplayRow(0)..DisplayRow(6),
8474 &(0..6)
8475 .map(|row| RowInfo {
8476 buffer_row: Some(row),
8477 ..Default::default()
8478 })
8479 .collect::<Vec<_>>(),
8480 &BTreeMap::default(),
8481 Some(DisplayPoint::new(DisplayRow(0), 0)),
8482 &snapshot,
8483 window,
8484 cx,
8485 )
8486 })
8487 .unwrap();
8488 assert_eq!(layouts.len(), 6);
8489
8490 let relative_rows = window
8491 .update(cx, |editor, window, cx| {
8492 let snapshot = editor.snapshot(window, cx);
8493 element.calculate_relative_line_numbers(
8494 &snapshot,
8495 &(DisplayRow(0)..DisplayRow(6)),
8496 Some(DisplayRow(3)),
8497 )
8498 })
8499 .unwrap();
8500 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8501 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8502 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8503 // current line has no relative number
8504 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8505 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8506
8507 // works if cursor is before screen
8508 let relative_rows = window
8509 .update(cx, |editor, window, cx| {
8510 let snapshot = editor.snapshot(window, cx);
8511 element.calculate_relative_line_numbers(
8512 &snapshot,
8513 &(DisplayRow(3)..DisplayRow(6)),
8514 Some(DisplayRow(1)),
8515 )
8516 })
8517 .unwrap();
8518 assert_eq!(relative_rows.len(), 3);
8519 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8520 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8521 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8522
8523 // works if cursor is after screen
8524 let relative_rows = window
8525 .update(cx, |editor, window, cx| {
8526 let snapshot = editor.snapshot(window, cx);
8527 element.calculate_relative_line_numbers(
8528 &snapshot,
8529 &(DisplayRow(0)..DisplayRow(3)),
8530 Some(DisplayRow(6)),
8531 )
8532 })
8533 .unwrap();
8534 assert_eq!(relative_rows.len(), 3);
8535 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8536 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8537 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8538 }
8539
8540 #[gpui::test]
8541 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8542 init_test(cx, |_| {});
8543
8544 let window = cx.add_window(|window, cx| {
8545 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8546 Editor::new(EditorMode::Full, buffer, None, window, cx)
8547 });
8548 let cx = &mut VisualTestContext::from_window(*window, cx);
8549 let editor = window.root(cx).unwrap();
8550 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8551
8552 window
8553 .update(cx, |editor, window, cx| {
8554 editor.cursor_shape = CursorShape::Block;
8555 editor.change_selections(None, window, cx, |s| {
8556 s.select_ranges([
8557 Point::new(0, 0)..Point::new(1, 0),
8558 Point::new(3, 2)..Point::new(3, 3),
8559 Point::new(5, 6)..Point::new(6, 0),
8560 ]);
8561 });
8562 })
8563 .unwrap();
8564
8565 let (_, state) = cx.draw(
8566 point(px(500.), px(500.)),
8567 size(px(500.), px(500.)),
8568 |_, _| EditorElement::new(&editor, style),
8569 );
8570
8571 assert_eq!(state.selections.len(), 1);
8572 let local_selections = &state.selections[0].1;
8573 assert_eq!(local_selections.len(), 3);
8574 // moves cursor back one line
8575 assert_eq!(
8576 local_selections[0].head,
8577 DisplayPoint::new(DisplayRow(0), 6)
8578 );
8579 assert_eq!(
8580 local_selections[0].range,
8581 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8582 );
8583
8584 // moves cursor back one column
8585 assert_eq!(
8586 local_selections[1].range,
8587 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8588 );
8589 assert_eq!(
8590 local_selections[1].head,
8591 DisplayPoint::new(DisplayRow(3), 2)
8592 );
8593
8594 // leaves cursor on the max point
8595 assert_eq!(
8596 local_selections[2].range,
8597 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8598 );
8599 assert_eq!(
8600 local_selections[2].head,
8601 DisplayPoint::new(DisplayRow(6), 0)
8602 );
8603
8604 // active lines does not include 1 (even though the range of the selection does)
8605 assert_eq!(
8606 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8607 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8608 );
8609 }
8610
8611 #[gpui::test]
8612 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8613 init_test(cx, |_| {});
8614
8615 let window = cx.add_window(|window, cx| {
8616 let buffer = MultiBuffer::build_simple("", cx);
8617 Editor::new(EditorMode::Full, buffer, None, window, cx)
8618 });
8619 let cx = &mut VisualTestContext::from_window(*window, cx);
8620 let editor = window.root(cx).unwrap();
8621 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8622 window
8623 .update(cx, |editor, window, cx| {
8624 editor.set_placeholder_text("hello", cx);
8625 editor.insert_blocks(
8626 [BlockProperties {
8627 style: BlockStyle::Fixed,
8628 placement: BlockPlacement::Above(Anchor::min()),
8629 height: 3,
8630 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8631 priority: 0,
8632 }],
8633 None,
8634 cx,
8635 );
8636
8637 // Blur the editor so that it displays placeholder text.
8638 window.blur();
8639 })
8640 .unwrap();
8641
8642 let (_, state) = cx.draw(
8643 point(px(500.), px(500.)),
8644 size(px(500.), px(500.)),
8645 |_, _| EditorElement::new(&editor, style),
8646 );
8647 assert_eq!(state.position_map.line_layouts.len(), 4);
8648 assert_eq!(state.line_numbers.len(), 1);
8649 assert_eq!(
8650 state
8651 .line_numbers
8652 .get(&MultiBufferRow(0))
8653 .map(|line_number| line_number.shaped_line.text.as_ref()),
8654 Some("1")
8655 );
8656 }
8657
8658 #[gpui::test]
8659 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8660 const TAB_SIZE: u32 = 4;
8661
8662 let input_text = "\t \t|\t| a b";
8663 let expected_invisibles = vec![
8664 Invisible::Tab {
8665 line_start_offset: 0,
8666 line_end_offset: TAB_SIZE as usize,
8667 },
8668 Invisible::Whitespace {
8669 line_offset: TAB_SIZE as usize,
8670 },
8671 Invisible::Tab {
8672 line_start_offset: TAB_SIZE as usize + 1,
8673 line_end_offset: TAB_SIZE as usize * 2,
8674 },
8675 Invisible::Tab {
8676 line_start_offset: TAB_SIZE as usize * 2 + 1,
8677 line_end_offset: TAB_SIZE as usize * 3,
8678 },
8679 Invisible::Whitespace {
8680 line_offset: TAB_SIZE as usize * 3 + 1,
8681 },
8682 Invisible::Whitespace {
8683 line_offset: TAB_SIZE as usize * 3 + 3,
8684 },
8685 ];
8686 assert_eq!(
8687 expected_invisibles.len(),
8688 input_text
8689 .chars()
8690 .filter(|initial_char| initial_char.is_whitespace())
8691 .count(),
8692 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8693 );
8694
8695 for show_line_numbers in [true, false] {
8696 init_test(cx, |s| {
8697 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8698 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8699 });
8700
8701 let actual_invisibles = collect_invisibles_from_new_editor(
8702 cx,
8703 EditorMode::Full,
8704 input_text,
8705 px(500.0),
8706 show_line_numbers,
8707 );
8708
8709 assert_eq!(expected_invisibles, actual_invisibles);
8710 }
8711 }
8712
8713 #[gpui::test]
8714 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8715 init_test(cx, |s| {
8716 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8717 s.defaults.tab_size = NonZeroU32::new(4);
8718 });
8719
8720 for editor_mode_without_invisibles in [
8721 EditorMode::SingleLine { auto_width: false },
8722 EditorMode::AutoHeight { max_lines: 100 },
8723 ] {
8724 for show_line_numbers in [true, false] {
8725 let invisibles = collect_invisibles_from_new_editor(
8726 cx,
8727 editor_mode_without_invisibles,
8728 "\t\t\t| | a b",
8729 px(500.0),
8730 show_line_numbers,
8731 );
8732 assert!(invisibles.is_empty(),
8733 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8734 }
8735 }
8736 }
8737
8738 #[gpui::test]
8739 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8740 let tab_size = 4;
8741 let input_text = "a\tbcd ".repeat(9);
8742 let repeated_invisibles = [
8743 Invisible::Tab {
8744 line_start_offset: 1,
8745 line_end_offset: tab_size as usize,
8746 },
8747 Invisible::Whitespace {
8748 line_offset: tab_size as usize + 3,
8749 },
8750 Invisible::Whitespace {
8751 line_offset: tab_size as usize + 4,
8752 },
8753 Invisible::Whitespace {
8754 line_offset: tab_size as usize + 5,
8755 },
8756 Invisible::Whitespace {
8757 line_offset: tab_size as usize + 6,
8758 },
8759 Invisible::Whitespace {
8760 line_offset: tab_size as usize + 7,
8761 },
8762 ];
8763 let expected_invisibles = std::iter::once(repeated_invisibles)
8764 .cycle()
8765 .take(9)
8766 .flatten()
8767 .collect::<Vec<_>>();
8768 assert_eq!(
8769 expected_invisibles.len(),
8770 input_text
8771 .chars()
8772 .filter(|initial_char| initial_char.is_whitespace())
8773 .count(),
8774 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8775 );
8776 info!("Expected invisibles: {expected_invisibles:?}");
8777
8778 init_test(cx, |_| {});
8779
8780 // Put the same string with repeating whitespace pattern into editors of various size,
8781 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8782 let resize_step = 10.0;
8783 let mut editor_width = 200.0;
8784 while editor_width <= 1000.0 {
8785 for show_line_numbers in [true, false] {
8786 update_test_language_settings(cx, |s| {
8787 s.defaults.tab_size = NonZeroU32::new(tab_size);
8788 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8789 s.defaults.preferred_line_length = Some(editor_width as u32);
8790 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8791 });
8792
8793 let actual_invisibles = collect_invisibles_from_new_editor(
8794 cx,
8795 EditorMode::Full,
8796 &input_text,
8797 px(editor_width),
8798 show_line_numbers,
8799 );
8800
8801 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8802 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8803 let mut i = 0;
8804 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8805 i = actual_index;
8806 match expected_invisibles.get(i) {
8807 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8808 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8809 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8810 _ => {
8811 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8812 }
8813 },
8814 None => {
8815 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8816 }
8817 }
8818 }
8819 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8820 assert!(
8821 missing_expected_invisibles.is_empty(),
8822 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8823 );
8824
8825 editor_width += resize_step;
8826 }
8827 }
8828 }
8829
8830 fn collect_invisibles_from_new_editor(
8831 cx: &mut TestAppContext,
8832 editor_mode: EditorMode,
8833 input_text: &str,
8834 editor_width: Pixels,
8835 show_line_numbers: bool,
8836 ) -> Vec<Invisible> {
8837 info!(
8838 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8839 editor_width.0
8840 );
8841 let window = cx.add_window(|window, cx| {
8842 let buffer = MultiBuffer::build_simple(input_text, cx);
8843 Editor::new(editor_mode, buffer, None, window, cx)
8844 });
8845 let cx = &mut VisualTestContext::from_window(*window, cx);
8846 let editor = window.root(cx).unwrap();
8847
8848 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8849 window
8850 .update(cx, |editor, _, cx| {
8851 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8852 editor.set_wrap_width(Some(editor_width), cx);
8853 editor.set_show_line_numbers(show_line_numbers, cx);
8854 })
8855 .unwrap();
8856 let (_, state) = cx.draw(
8857 point(px(500.), px(500.)),
8858 size(px(500.), px(500.)),
8859 |_, _| EditorElement::new(&editor, style),
8860 );
8861 state
8862 .position_map
8863 .line_layouts
8864 .iter()
8865 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8866 .cloned()
8867 .collect()
8868 }
8869}
8870
8871fn diff_hunk_controls(
8872 row: u32,
8873 status: &DiffHunkStatus,
8874 hunk_range: Range<Anchor>,
8875 is_created_file: bool,
8876 line_height: Pixels,
8877 editor: &Entity<Editor>,
8878 cx: &mut App,
8879) -> AnyElement {
8880 h_flex()
8881 .h(line_height)
8882 .mr_1()
8883 .gap_1()
8884 .px_0p5()
8885 .pb_1()
8886 .border_x_1()
8887 .border_b_1()
8888 .border_color(cx.theme().colors().border_variant)
8889 .rounded_b_lg()
8890 .bg(cx.theme().colors().editor_background)
8891 .gap_1()
8892 .occlude()
8893 .shadow_md()
8894 .child(if status.has_secondary_hunk() {
8895 Button::new(("stage", row as u64), "Stage")
8896 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8897 .tooltip({
8898 let focus_handle = editor.focus_handle(cx);
8899 move |window, cx| {
8900 Tooltip::for_action_in(
8901 "Stage Hunk",
8902 &::git::ToggleStaged,
8903 &focus_handle,
8904 window,
8905 cx,
8906 )
8907 }
8908 })
8909 .on_click({
8910 let editor = editor.clone();
8911 move |_event, _window, cx| {
8912 editor.update(cx, |editor, cx| {
8913 editor.stage_or_unstage_diff_hunks(
8914 true,
8915 vec![hunk_range.start..hunk_range.start],
8916 cx,
8917 );
8918 });
8919 }
8920 })
8921 } else {
8922 Button::new(("unstage", row as u64), "Unstage")
8923 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8924 .tooltip({
8925 let focus_handle = editor.focus_handle(cx);
8926 move |window, cx| {
8927 Tooltip::for_action_in(
8928 "Unstage Hunk",
8929 &::git::ToggleStaged,
8930 &focus_handle,
8931 window,
8932 cx,
8933 )
8934 }
8935 })
8936 .on_click({
8937 let editor = editor.clone();
8938 move |_event, _window, cx| {
8939 editor.update(cx, |editor, cx| {
8940 editor.stage_or_unstage_diff_hunks(
8941 false,
8942 vec![hunk_range.start..hunk_range.start],
8943 cx,
8944 );
8945 });
8946 }
8947 })
8948 })
8949 .child(
8950 Button::new("restore", "Restore")
8951 .tooltip({
8952 let focus_handle = editor.focus_handle(cx);
8953 move |window, cx| {
8954 Tooltip::for_action_in(
8955 "Restore Hunk",
8956 &::git::Restore,
8957 &focus_handle,
8958 window,
8959 cx,
8960 )
8961 }
8962 })
8963 .on_click({
8964 let editor = editor.clone();
8965 move |_event, window, cx| {
8966 editor.update(cx, |editor, cx| {
8967 let snapshot = editor.snapshot(window, cx);
8968 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8969 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8970 });
8971 }
8972 })
8973 .disabled(is_created_file),
8974 )
8975 .when(
8976 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8977 |el| {
8978 el.child(
8979 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8980 .shape(IconButtonShape::Square)
8981 .icon_size(IconSize::Small)
8982 // .disabled(!has_multiple_hunks)
8983 .tooltip({
8984 let focus_handle = editor.focus_handle(cx);
8985 move |window, cx| {
8986 Tooltip::for_action_in(
8987 "Next Hunk",
8988 &GoToHunk,
8989 &focus_handle,
8990 window,
8991 cx,
8992 )
8993 }
8994 })
8995 .on_click({
8996 let editor = editor.clone();
8997 move |_event, window, cx| {
8998 editor.update(cx, |editor, cx| {
8999 let snapshot = editor.snapshot(window, cx);
9000 let position =
9001 hunk_range.end.to_point(&snapshot.buffer_snapshot);
9002 editor.go_to_hunk_before_or_after_position(
9003 &snapshot,
9004 position,
9005 Direction::Next,
9006 window,
9007 cx,
9008 );
9009 editor.expand_selected_diff_hunks(cx);
9010 });
9011 }
9012 }),
9013 )
9014 .child(
9015 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
9016 .shape(IconButtonShape::Square)
9017 .icon_size(IconSize::Small)
9018 // .disabled(!has_multiple_hunks)
9019 .tooltip({
9020 let focus_handle = editor.focus_handle(cx);
9021 move |window, cx| {
9022 Tooltip::for_action_in(
9023 "Previous Hunk",
9024 &GoToPreviousHunk,
9025 &focus_handle,
9026 window,
9027 cx,
9028 )
9029 }
9030 })
9031 .on_click({
9032 let editor = editor.clone();
9033 move |_event, window, cx| {
9034 editor.update(cx, |editor, cx| {
9035 let snapshot = editor.snapshot(window, cx);
9036 let point =
9037 hunk_range.start.to_point(&snapshot.buffer_snapshot);
9038 editor.go_to_hunk_before_or_after_position(
9039 &snapshot,
9040 point,
9041 Direction::Prev,
9042 window,
9043 cx,
9044 );
9045 editor.expand_selected_diff_hunks(cx);
9046 });
9047 }
9048 }),
9049 )
9050 },
9051 )
9052 .into_any_element()
9053}