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_layout_information: ScrollbarLayoutInformation,
1342 content_offset: gpui::Point<Pixels>,
1343 scroll_position: gpui::Point<f32>,
1344 non_visible_cursors: bool,
1345 window: &mut Window,
1346 cx: &mut App,
1347 ) -> Option<EditorScrollbars> {
1348 if snapshot.mode != EditorMode::Full {
1349 return None;
1350 }
1351
1352 // If a drag took place after we started dragging the scrollbar,
1353 // cancel the scrollbar drag.
1354 if cx.has_active_drag() {
1355 self.editor.update(cx, |editor, cx| {
1356 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1357 });
1358 }
1359
1360 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1361 let show_scrollbars = self.editor.read(cx).show_scrollbars
1362 && match scrollbar_settings.show {
1363 ShowScrollbar::Auto => {
1364 let editor = self.editor.read(cx);
1365 let is_singleton = editor.is_singleton(cx);
1366 // Git
1367 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1368 ||
1369 // Buffer Search Results
1370 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1371 ||
1372 // Selected Text Occurrences
1373 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1374 ||
1375 // Selected Symbol Occurrences
1376 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1377 ||
1378 // Diagnostics
1379 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1380 ||
1381 // Cursors out of sight
1382 non_visible_cursors
1383 ||
1384 // Scrollmanager
1385 editor.scroll_manager.scrollbars_visible()
1386 }
1387 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1388 ShowScrollbar::Always => true,
1389 ShowScrollbar::Never => return None,
1390 };
1391
1392 Some(EditorScrollbars::from_scrollbar_axes(
1393 scrollbar_settings.axes,
1394 &scrollbar_layout_information,
1395 content_offset,
1396 scroll_position,
1397 self.style.scrollbar_width,
1398 show_scrollbars,
1399 window,
1400 ))
1401 }
1402
1403 fn prepaint_crease_toggles(
1404 &self,
1405 crease_toggles: &mut [Option<AnyElement>],
1406 line_height: Pixels,
1407 gutter_dimensions: &GutterDimensions,
1408 gutter_settings: crate::editor_settings::Gutter,
1409 scroll_pixel_position: gpui::Point<Pixels>,
1410 gutter_hitbox: &Hitbox,
1411 window: &mut Window,
1412 cx: &mut App,
1413 ) {
1414 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1415 if let Some(crease_toggle) = crease_toggle {
1416 debug_assert!(gutter_settings.folds);
1417 let available_space = size(
1418 AvailableSpace::MinContent,
1419 AvailableSpace::Definite(line_height * 0.55),
1420 );
1421 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1422
1423 let position = point(
1424 gutter_dimensions.width - gutter_dimensions.right_padding,
1425 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1426 );
1427 let centering_offset = point(
1428 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1429 (line_height - crease_toggle_size.height) / 2.,
1430 );
1431 let origin = gutter_hitbox.origin + position + centering_offset;
1432 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1433 }
1434 }
1435 }
1436
1437 fn prepaint_expand_toggles(
1438 &self,
1439 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1440 window: &mut Window,
1441 cx: &mut App,
1442 ) {
1443 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1444 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1445 expand_toggle.layout_as_root(available_space, window, cx);
1446 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1447 }
1448 }
1449
1450 fn prepaint_crease_trailers(
1451 &self,
1452 trailers: Vec<Option<AnyElement>>,
1453 lines: &[LineWithInvisibles],
1454 line_height: Pixels,
1455 content_origin: gpui::Point<Pixels>,
1456 scroll_pixel_position: gpui::Point<Pixels>,
1457 em_width: Pixels,
1458 window: &mut Window,
1459 cx: &mut App,
1460 ) -> Vec<Option<CreaseTrailerLayout>> {
1461 trailers
1462 .into_iter()
1463 .enumerate()
1464 .map(|(ix, element)| {
1465 let mut element = element?;
1466 let available_space = size(
1467 AvailableSpace::MinContent,
1468 AvailableSpace::Definite(line_height),
1469 );
1470 let size = element.layout_as_root(available_space, window, cx);
1471
1472 let line = &lines[ix];
1473 let padding = if line.width == Pixels::ZERO {
1474 Pixels::ZERO
1475 } else {
1476 4. * em_width
1477 };
1478 let position = point(
1479 scroll_pixel_position.x + line.width + padding,
1480 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1481 );
1482 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1483 let origin = content_origin + position + centering_offset;
1484 element.prepaint_as_root(origin, available_space, window, cx);
1485 Some(CreaseTrailerLayout {
1486 element,
1487 bounds: Bounds::new(origin, size),
1488 })
1489 })
1490 .collect()
1491 }
1492
1493 // Folds contained in a hunk are ignored apart from shrinking visual size
1494 // If a fold contains any hunks then that fold line is marked as modified
1495 fn layout_gutter_diff_hunks(
1496 &self,
1497 line_height: Pixels,
1498 gutter_hitbox: &Hitbox,
1499 display_rows: Range<DisplayRow>,
1500 snapshot: &EditorSnapshot,
1501 window: &mut Window,
1502 cx: &mut App,
1503 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1504 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1505 let mut display_hunks = snapshot
1506 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1507 .map(|hunk| (hunk, None))
1508 .collect::<Vec<_>>();
1509 let git_gutter_setting = ProjectSettings::get_global(cx)
1510 .git
1511 .git_gutter
1512 .unwrap_or_default();
1513 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1514 for (hunk, hitbox) in &mut display_hunks {
1515 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1516 let hunk_bounds =
1517 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1518 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1519 }
1520 }
1521 }
1522
1523 display_hunks
1524 }
1525
1526 fn layout_inline_diagnostics(
1527 &self,
1528 line_layouts: &[LineWithInvisibles],
1529 crease_trailers: &[Option<CreaseTrailerLayout>],
1530 content_origin: gpui::Point<Pixels>,
1531 scroll_pixel_position: gpui::Point<Pixels>,
1532 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1533 start_row: DisplayRow,
1534 end_row: DisplayRow,
1535 line_height: Pixels,
1536 em_width: Pixels,
1537 style: &EditorStyle,
1538 window: &mut Window,
1539 cx: &mut App,
1540 ) -> HashMap<DisplayRow, AnyElement> {
1541 let max_severity = ProjectSettings::get_global(cx)
1542 .diagnostics
1543 .inline
1544 .max_severity
1545 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1546 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1547 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1548 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1549 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1550 });
1551
1552 let active_diagnostics_group = self
1553 .editor
1554 .read(cx)
1555 .active_diagnostics
1556 .as_ref()
1557 .map(|active_diagnostics| active_diagnostics.group_id);
1558
1559 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1560 let snapshot = editor.snapshot(window, cx);
1561 editor
1562 .inline_diagnostics
1563 .iter()
1564 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1565 .filter(|(_, diagnostic)| match active_diagnostics_group {
1566 Some(active_diagnostics_group) => {
1567 // Active diagnostics are all shown in the editor already, no need to display them inline
1568 diagnostic.group_id != active_diagnostics_group
1569 }
1570 None => true,
1571 })
1572 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1573 .skip_while(|(point, _)| point.row() < start_row)
1574 .take_while(|(point, _)| point.row() < end_row)
1575 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1576 acc.entry(point.row())
1577 .or_insert_with(Vec::new)
1578 .push(diagnostic);
1579 acc
1580 })
1581 });
1582
1583 if diagnostics_by_rows.is_empty() {
1584 return HashMap::default();
1585 }
1586
1587 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1588 &DiagnosticSeverity::ERROR => Color::Error,
1589 &DiagnosticSeverity::WARNING => Color::Warning,
1590 &DiagnosticSeverity::INFORMATION => Color::Info,
1591 &DiagnosticSeverity::HINT => Color::Hint,
1592 _ => Color::Error,
1593 };
1594
1595 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1596 let min_x = ProjectSettings::get_global(cx)
1597 .diagnostics
1598 .inline
1599 .min_column as f32
1600 * em_width;
1601
1602 let mut elements = HashMap::default();
1603 for (row, mut diagnostics) in diagnostics_by_rows {
1604 diagnostics.sort_by_key(|diagnostic| {
1605 (
1606 diagnostic.severity,
1607 std::cmp::Reverse(diagnostic.is_primary),
1608 diagnostic.start.row,
1609 diagnostic.start.column,
1610 )
1611 });
1612
1613 let Some(diagnostic_to_render) = diagnostics
1614 .iter()
1615 .find(|diagnostic| diagnostic.is_primary)
1616 .or_else(|| diagnostics.first())
1617 else {
1618 continue;
1619 };
1620
1621 let pos_y = content_origin.y
1622 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1623
1624 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1625 let pos_x = {
1626 let crease_trailer_layout = &crease_trailers[window_ix];
1627 let line_layout = &line_layouts[window_ix];
1628
1629 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1630 crease_trailer.bounds.right()
1631 } else {
1632 content_origin.x - scroll_pixel_position.x + line_layout.width
1633 };
1634
1635 let padded_line = line_end + padding;
1636 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1637
1638 cmp::max(padded_line, min_start)
1639 };
1640
1641 let behind_inline_completion_popover = inline_completion_popover_origin
1642 .as_ref()
1643 .map_or(false, |inline_completion_popover_origin| {
1644 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1645 });
1646 let opacity = if behind_inline_completion_popover {
1647 0.5
1648 } else {
1649 1.0
1650 };
1651
1652 let mut element = h_flex()
1653 .id(("diagnostic", row.0))
1654 .h(line_height)
1655 .w_full()
1656 .px_1()
1657 .rounded_xs()
1658 .opacity(opacity)
1659 .bg(severity_to_color(&diagnostic_to_render.severity)
1660 .color(cx)
1661 .opacity(0.05))
1662 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1663 .text_sm()
1664 .font_family(style.text.font().family)
1665 .child(diagnostic_to_render.message.clone())
1666 .into_any();
1667
1668 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1669
1670 elements.insert(row, element);
1671 }
1672
1673 elements
1674 }
1675
1676 fn layout_inline_blame(
1677 &self,
1678 display_row: DisplayRow,
1679 row_info: &RowInfo,
1680 line_layout: &LineWithInvisibles,
1681 crease_trailer: Option<&CreaseTrailerLayout>,
1682 em_width: Pixels,
1683 content_origin: gpui::Point<Pixels>,
1684 scroll_pixel_position: gpui::Point<Pixels>,
1685 line_height: Pixels,
1686 window: &mut Window,
1687 cx: &mut App,
1688 ) -> Option<AnyElement> {
1689 if !self
1690 .editor
1691 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1692 {
1693 return None;
1694 }
1695
1696 let editor = self.editor.read(cx);
1697 let blame = editor.blame.clone()?;
1698 let padding = {
1699 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1700 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1701
1702 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1703
1704 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1705 match &inline_completion.completion {
1706 InlineCompletion::Edit {
1707 display_mode: EditDisplayMode::TabAccept,
1708 ..
1709 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1710 _ => {}
1711 }
1712 }
1713
1714 padding * em_width
1715 };
1716
1717 let blame_entry = blame
1718 .update(cx, |blame, cx| {
1719 blame.blame_for_rows(&[*row_info], cx).next()
1720 })
1721 .flatten()?;
1722
1723 let mut element =
1724 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1725
1726 let start_y = content_origin.y
1727 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1728
1729 let start_x = {
1730 let line_end = if let Some(crease_trailer) = crease_trailer {
1731 crease_trailer.bounds.right()
1732 } else {
1733 content_origin.x - scroll_pixel_position.x + line_layout.width
1734 };
1735
1736 let padded_line_end = line_end + padding;
1737
1738 let min_column_in_pixels = ProjectSettings::get_global(cx)
1739 .git
1740 .inline_blame
1741 .and_then(|settings| settings.min_column)
1742 .map(|col| self.column_pixels(col as usize, window, cx))
1743 .unwrap_or(px(0.));
1744 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1745
1746 cmp::max(padded_line_end, min_start)
1747 };
1748
1749 let absolute_offset = point(start_x, start_y);
1750 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1751
1752 Some(element)
1753 }
1754
1755 fn layout_blame_entries(
1756 &self,
1757 buffer_rows: &[RowInfo],
1758 em_width: Pixels,
1759 scroll_position: gpui::Point<f32>,
1760 line_height: Pixels,
1761 gutter_hitbox: &Hitbox,
1762 max_width: Option<Pixels>,
1763 window: &mut Window,
1764 cx: &mut App,
1765 ) -> Option<Vec<AnyElement>> {
1766 if !self
1767 .editor
1768 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1769 {
1770 return None;
1771 }
1772
1773 let blame = self.editor.read(cx).blame.clone()?;
1774 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1775 blame.blame_for_rows(buffer_rows, cx).collect()
1776 });
1777
1778 let width = if let Some(max_width) = max_width {
1779 AvailableSpace::Definite(max_width)
1780 } else {
1781 AvailableSpace::MaxContent
1782 };
1783 let scroll_top = scroll_position.y * line_height;
1784 let start_x = em_width;
1785
1786 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1787
1788 let shaped_lines = blamed_rows
1789 .into_iter()
1790 .enumerate()
1791 .flat_map(|(ix, blame_entry)| {
1792 if let Some(blame_entry) = blame_entry {
1793 let mut element = render_blame_entry(
1794 ix,
1795 &blame,
1796 blame_entry,
1797 &self.style,
1798 &mut last_used_color,
1799 self.editor.clone(),
1800 cx,
1801 );
1802
1803 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1804 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1805
1806 element.prepaint_as_root(
1807 absolute_offset,
1808 size(width, AvailableSpace::MinContent),
1809 window,
1810 cx,
1811 );
1812
1813 Some(element)
1814 } else {
1815 None
1816 }
1817 })
1818 .collect();
1819
1820 Some(shaped_lines)
1821 }
1822
1823 fn layout_indent_guides(
1824 &self,
1825 content_origin: gpui::Point<Pixels>,
1826 text_origin: gpui::Point<Pixels>,
1827 visible_buffer_range: Range<MultiBufferRow>,
1828 scroll_pixel_position: gpui::Point<Pixels>,
1829 line_height: Pixels,
1830 snapshot: &DisplaySnapshot,
1831 window: &mut Window,
1832 cx: &mut App,
1833 ) -> Option<Vec<IndentGuideLayout>> {
1834 let indent_guides = self.editor.update(cx, |editor, cx| {
1835 editor.indent_guides(visible_buffer_range, snapshot, cx)
1836 })?;
1837
1838 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1839 editor
1840 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1841 .unwrap_or_default()
1842 });
1843
1844 Some(
1845 indent_guides
1846 .into_iter()
1847 .enumerate()
1848 .filter_map(|(i, indent_guide)| {
1849 let single_indent_width =
1850 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1851 let total_width = single_indent_width * indent_guide.depth as f32;
1852 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1853 if start_x >= text_origin.x {
1854 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1855 indent_guide.start_row..indent_guide.end_row,
1856 line_height,
1857 snapshot,
1858 );
1859
1860 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1861
1862 Some(IndentGuideLayout {
1863 origin: point(start_x, start_y),
1864 length,
1865 single_indent_width,
1866 depth: indent_guide.depth,
1867 active: active_indent_guide_indices.contains(&i),
1868 settings: indent_guide.settings,
1869 })
1870 } else {
1871 None
1872 }
1873 })
1874 .collect(),
1875 )
1876 }
1877
1878 fn calculate_indent_guide_bounds(
1879 row_range: Range<MultiBufferRow>,
1880 line_height: Pixels,
1881 snapshot: &DisplaySnapshot,
1882 ) -> (gpui::Pixels, gpui::Pixels) {
1883 let start_point = Point::new(row_range.start.0, 0);
1884 let end_point = Point::new(row_range.end.0, 0);
1885
1886 let row_range = start_point.to_display_point(snapshot).row()
1887 ..end_point.to_display_point(snapshot).row();
1888
1889 let mut prev_line = start_point;
1890 prev_line.row = prev_line.row.saturating_sub(1);
1891 let prev_line = prev_line.to_display_point(snapshot).row();
1892
1893 let mut cons_line = end_point;
1894 cons_line.row += 1;
1895 let cons_line = cons_line.to_display_point(snapshot).row();
1896
1897 let mut offset_y = row_range.start.0 as f32 * line_height;
1898 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1899
1900 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1901 if row_range.end == cons_line {
1902 length += line_height;
1903 }
1904
1905 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1906 // we want to extend the indent guide to the start of the block.
1907 let mut block_height = 0;
1908 let mut block_offset = 0;
1909 let mut found_excerpt_header = false;
1910 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1911 if matches!(block, Block::ExcerptBoundary { .. }) {
1912 found_excerpt_header = true;
1913 break;
1914 }
1915 block_offset += block.height();
1916 block_height += block.height();
1917 }
1918 if !found_excerpt_header {
1919 offset_y -= block_offset as f32 * line_height;
1920 length += block_height as f32 * line_height;
1921 }
1922
1923 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1924 // we want to ensure that the indent guide stops before the excerpt header.
1925 let mut block_height = 0;
1926 let mut found_excerpt_header = false;
1927 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1928 if matches!(block, Block::ExcerptBoundary { .. }) {
1929 found_excerpt_header = true;
1930 }
1931 block_height += block.height();
1932 }
1933 if found_excerpt_header {
1934 length -= block_height as f32 * line_height;
1935 }
1936
1937 (offset_y, length)
1938 }
1939
1940 fn layout_breakpoints(
1941 &self,
1942 line_height: Pixels,
1943 range: Range<DisplayRow>,
1944 scroll_pixel_position: gpui::Point<Pixels>,
1945 gutter_dimensions: &GutterDimensions,
1946 gutter_hitbox: &Hitbox,
1947 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
1948 snapshot: &EditorSnapshot,
1949 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
1950 row_infos: &[RowInfo],
1951 window: &mut Window,
1952 cx: &mut App,
1953 ) -> Vec<AnyElement> {
1954 self.editor.update(cx, |editor, cx| {
1955 breakpoints
1956 .into_iter()
1957 .filter_map(|(display_row, (text_anchor, bp))| {
1958 if row_infos
1959 .get((display_row.0.saturating_sub(range.start.0)) as usize)
1960 .is_some_and(|row_info| {
1961 row_info.expand_info.is_some()
1962 || row_info
1963 .diff_status
1964 .is_some_and(|status| status.is_deleted())
1965 })
1966 {
1967 return None;
1968 }
1969
1970 if range.start > display_row || range.end < display_row {
1971 return None;
1972 }
1973
1974 let row =
1975 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
1976 if snapshot.is_line_folded(row) {
1977 return None;
1978 }
1979
1980 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
1981
1982 let button = prepaint_gutter_button(
1983 button,
1984 display_row,
1985 line_height,
1986 gutter_dimensions,
1987 scroll_pixel_position,
1988 gutter_hitbox,
1989 display_hunks,
1990 window,
1991 cx,
1992 );
1993 Some(button)
1994 })
1995 .collect_vec()
1996 })
1997 }
1998
1999 #[allow(clippy::too_many_arguments)]
2000 fn layout_run_indicators(
2001 &self,
2002 line_height: Pixels,
2003 range: Range<DisplayRow>,
2004 row_infos: &[RowInfo],
2005 scroll_pixel_position: gpui::Point<Pixels>,
2006 gutter_dimensions: &GutterDimensions,
2007 gutter_hitbox: &Hitbox,
2008 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2009 snapshot: &EditorSnapshot,
2010 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2011 window: &mut Window,
2012 cx: &mut App,
2013 ) -> Vec<AnyElement> {
2014 self.editor.update(cx, |editor, cx| {
2015 let active_task_indicator_row =
2016 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2017 deployed_from_indicator,
2018 actions,
2019 ..
2020 })) = editor.context_menu.borrow().as_ref()
2021 {
2022 actions
2023 .tasks
2024 .as_ref()
2025 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2026 .or(*deployed_from_indicator)
2027 } else {
2028 None
2029 };
2030
2031 let offset_range_start =
2032 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2033
2034 let offset_range_end =
2035 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2036
2037 editor
2038 .tasks
2039 .iter()
2040 .filter_map(|(_, tasks)| {
2041 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2042 if multibuffer_point < offset_range_start
2043 || multibuffer_point > offset_range_end
2044 {
2045 return None;
2046 }
2047 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2048 let buffer_folded = snapshot
2049 .buffer_snapshot
2050 .buffer_line_for_row(multibuffer_row)
2051 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2052 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2053 .unwrap_or(false);
2054 if buffer_folded {
2055 return None;
2056 }
2057
2058 if snapshot.is_line_folded(multibuffer_row) {
2059 // Skip folded indicators, unless it's the starting line of a fold.
2060 if multibuffer_row
2061 .0
2062 .checked_sub(1)
2063 .map_or(false, |previous_row| {
2064 snapshot.is_line_folded(MultiBufferRow(previous_row))
2065 })
2066 {
2067 return None;
2068 }
2069 }
2070
2071 let display_row = multibuffer_point.to_display_point(snapshot).row();
2072 if row_infos
2073 .get((display_row - range.start).0 as usize)
2074 .is_some_and(|row_info| row_info.expand_info.is_some())
2075 {
2076 return None;
2077 }
2078
2079 let button = editor.render_run_indicator(
2080 &self.style,
2081 Some(display_row) == active_task_indicator_row,
2082 display_row,
2083 breakpoints.remove(&display_row),
2084 cx,
2085 );
2086
2087 let button = prepaint_gutter_button(
2088 button,
2089 display_row,
2090 line_height,
2091 gutter_dimensions,
2092 scroll_pixel_position,
2093 gutter_hitbox,
2094 display_hunks,
2095 window,
2096 cx,
2097 );
2098 Some(button)
2099 })
2100 .collect_vec()
2101 })
2102 }
2103
2104 fn layout_expand_toggles(
2105 &self,
2106 gutter_hitbox: &Hitbox,
2107 gutter_dimensions: GutterDimensions,
2108 em_width: Pixels,
2109 line_height: Pixels,
2110 scroll_position: gpui::Point<f32>,
2111 buffer_rows: &[RowInfo],
2112 window: &mut Window,
2113 cx: &mut App,
2114 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2115 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2116
2117 let scroll_top = scroll_position.y * line_height;
2118
2119 let max_line_number_length = self
2120 .editor
2121 .read(cx)
2122 .buffer()
2123 .read(cx)
2124 .snapshot(cx)
2125 .widest_line_number()
2126 .ilog10()
2127 + 1;
2128
2129 let elements = buffer_rows
2130 .into_iter()
2131 .enumerate()
2132 .map(|(ix, row_info)| {
2133 let ExpandInfo {
2134 excerpt_id,
2135 direction,
2136 } = row_info.expand_info?;
2137
2138 let icon_name = match direction {
2139 ExpandExcerptDirection::Up => IconName::ExpandUp,
2140 ExpandExcerptDirection::Down => IconName::ExpandDown,
2141 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2142 };
2143
2144 let git_gutter_width = Self::gutter_strip_width(line_height);
2145 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2146
2147 let editor = self.editor.clone();
2148 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2149 && row_info
2150 .buffer_row
2151 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2152 || gutter_dimensions.right_padding == px(0.);
2153
2154 let width = if is_wide {
2155 available_width - px(2.)
2156 } else {
2157 available_width + em_width - px(2.)
2158 };
2159
2160 let toggle = IconButton::new(("expand", ix), icon_name)
2161 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2162 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2163 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2164 .width(width.into())
2165 .on_click(move |_, window, cx| {
2166 editor.update(cx, |editor, cx| {
2167 editor.expand_excerpt(excerpt_id, direction, window, cx);
2168 });
2169 })
2170 .tooltip(Tooltip::for_action_title(
2171 "Expand Excerpt",
2172 &crate::actions::ExpandExcerpts::default(),
2173 ))
2174 .into_any_element();
2175
2176 let position = point(
2177 git_gutter_width + px(1.),
2178 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2179 );
2180 let origin = gutter_hitbox.origin + position;
2181
2182 Some((toggle, origin))
2183 })
2184 .collect();
2185
2186 elements
2187 }
2188
2189 fn layout_code_actions_indicator(
2190 &self,
2191 line_height: Pixels,
2192 newest_selection_head: DisplayPoint,
2193 scroll_pixel_position: gpui::Point<Pixels>,
2194 gutter_dimensions: &GutterDimensions,
2195 gutter_hitbox: &Hitbox,
2196 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2197 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2198 window: &mut Window,
2199 cx: &mut App,
2200 ) -> Option<AnyElement> {
2201 let mut active = false;
2202 let mut button = None;
2203 let row = newest_selection_head.row();
2204 self.editor.update(cx, |editor, cx| {
2205 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2206 deployed_from_indicator,
2207 ..
2208 })) = editor.context_menu.borrow().as_ref()
2209 {
2210 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2211 };
2212
2213 let breakpoint = breakpoint_points.get(&row);
2214 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2215 });
2216
2217 let button = button?;
2218 breakpoint_points.remove(&row);
2219
2220 let button = prepaint_gutter_button(
2221 button,
2222 row,
2223 line_height,
2224 gutter_dimensions,
2225 scroll_pixel_position,
2226 gutter_hitbox,
2227 display_hunks,
2228 window,
2229 cx,
2230 );
2231
2232 Some(button)
2233 }
2234
2235 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2236 if let Some(index) = participant_index {
2237 cx.theme().players().color_for_participant(index.0)
2238 } else {
2239 cx.theme().players().absent()
2240 }
2241 }
2242
2243 fn calculate_relative_line_numbers(
2244 &self,
2245 snapshot: &EditorSnapshot,
2246 rows: &Range<DisplayRow>,
2247 relative_to: Option<DisplayRow>,
2248 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2249 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2250 let Some(relative_to) = relative_to else {
2251 return relative_rows;
2252 };
2253
2254 let start = rows.start.min(relative_to);
2255 let end = rows.end.max(relative_to);
2256
2257 let buffer_rows = snapshot
2258 .row_infos(start)
2259 .take(1 + end.minus(start) as usize)
2260 .collect::<Vec<_>>();
2261
2262 let head_idx = relative_to.minus(start);
2263 let mut delta = 1;
2264 let mut i = head_idx + 1;
2265 while i < buffer_rows.len() as u32 {
2266 if buffer_rows[i as usize].buffer_row.is_some() {
2267 if rows.contains(&DisplayRow(i + start.0)) {
2268 relative_rows.insert(DisplayRow(i + start.0), delta);
2269 }
2270 delta += 1;
2271 }
2272 i += 1;
2273 }
2274 delta = 1;
2275 i = head_idx.min(buffer_rows.len() as u32 - 1);
2276 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2277 i -= 1;
2278 }
2279
2280 while i > 0 {
2281 i -= 1;
2282 if buffer_rows[i as usize].buffer_row.is_some() {
2283 if rows.contains(&DisplayRow(i + start.0)) {
2284 relative_rows.insert(DisplayRow(i + start.0), delta);
2285 }
2286 delta += 1;
2287 }
2288 }
2289
2290 relative_rows
2291 }
2292
2293 fn layout_line_numbers(
2294 &self,
2295 gutter_hitbox: Option<&Hitbox>,
2296 gutter_dimensions: GutterDimensions,
2297 line_height: Pixels,
2298 scroll_position: gpui::Point<f32>,
2299 rows: Range<DisplayRow>,
2300 buffer_rows: &[RowInfo],
2301 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2302 newest_selection_head: Option<DisplayPoint>,
2303 snapshot: &EditorSnapshot,
2304 window: &mut Window,
2305 cx: &mut App,
2306 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2307 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2308 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2309 });
2310 if !include_line_numbers {
2311 return Arc::default();
2312 }
2313
2314 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2315 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2316 let newest = editor.selections.newest::<Point>(cx);
2317 SelectionLayout::new(
2318 newest,
2319 editor.selections.line_mode,
2320 editor.cursor_shape,
2321 &snapshot.display_snapshot,
2322 true,
2323 true,
2324 None,
2325 )
2326 .head
2327 });
2328 let is_relative = editor.should_use_relative_line_numbers(cx);
2329 (newest_selection_head, is_relative)
2330 });
2331
2332 let relative_to = if is_relative {
2333 Some(newest_selection_head.row())
2334 } else {
2335 None
2336 };
2337 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2338 let mut line_number = String::new();
2339 let line_numbers = buffer_rows
2340 .into_iter()
2341 .enumerate()
2342 .flat_map(|(ix, row_info)| {
2343 let display_row = DisplayRow(rows.start.0 + ix as u32);
2344 line_number.clear();
2345 let non_relative_number = row_info.buffer_row? + 1;
2346 let number = relative_rows
2347 .get(&display_row)
2348 .unwrap_or(&non_relative_number);
2349 write!(&mut line_number, "{number}").unwrap();
2350 if row_info
2351 .diff_status
2352 .is_some_and(|status| status.is_deleted())
2353 {
2354 return None;
2355 }
2356
2357 let color = active_rows
2358 .get(&display_row)
2359 .and_then(|spec| {
2360 if spec.breakpoint {
2361 Some(cx.theme().colors().debugger_accent)
2362 } else if spec.selection {
2363 Some(cx.theme().colors().editor_active_line_number)
2364 } else {
2365 None
2366 }
2367 })
2368 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2369 let shaped_line = self
2370 .shape_line_number(SharedString::from(&line_number), color, window)
2371 .log_err()?;
2372 let scroll_top = scroll_position.y * line_height;
2373 let line_origin = gutter_hitbox.map(|hitbox| {
2374 hitbox.origin
2375 + point(
2376 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2377 ix as f32 * line_height - (scroll_top % line_height),
2378 )
2379 });
2380
2381 #[cfg(not(test))]
2382 let hitbox = line_origin.map(|line_origin| {
2383 window.insert_hitbox(
2384 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2385 false,
2386 )
2387 });
2388 #[cfg(test)]
2389 let hitbox = {
2390 let _ = line_origin;
2391 None
2392 };
2393
2394 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2395 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2396 let line_number = LineNumberLayout {
2397 shaped_line,
2398 hitbox,
2399 };
2400 Some((multi_buffer_row, line_number))
2401 })
2402 .collect();
2403 Arc::new(line_numbers)
2404 }
2405
2406 fn layout_crease_toggles(
2407 &self,
2408 rows: Range<DisplayRow>,
2409 row_infos: &[RowInfo],
2410 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2411 snapshot: &EditorSnapshot,
2412 window: &mut Window,
2413 cx: &mut App,
2414 ) -> Vec<Option<AnyElement>> {
2415 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2416 && snapshot.mode == EditorMode::Full
2417 && self.editor.read(cx).is_singleton(cx);
2418 if include_fold_statuses {
2419 row_infos
2420 .into_iter()
2421 .enumerate()
2422 .map(|(ix, info)| {
2423 if info.expand_info.is_some() {
2424 return None;
2425 }
2426 let row = info.multibuffer_row?;
2427 let display_row = DisplayRow(rows.start.0 + ix as u32);
2428 let active = active_rows.contains_key(&display_row);
2429
2430 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2431 })
2432 .collect()
2433 } else {
2434 Vec::new()
2435 }
2436 }
2437
2438 fn layout_crease_trailers(
2439 &self,
2440 buffer_rows: impl IntoIterator<Item = RowInfo>,
2441 snapshot: &EditorSnapshot,
2442 window: &mut Window,
2443 cx: &mut App,
2444 ) -> Vec<Option<AnyElement>> {
2445 buffer_rows
2446 .into_iter()
2447 .map(|row_info| {
2448 if row_info.expand_info.is_some() {
2449 return None;
2450 }
2451 if let Some(row) = row_info.multibuffer_row {
2452 snapshot.render_crease_trailer(row, window, cx)
2453 } else {
2454 None
2455 }
2456 })
2457 .collect()
2458 }
2459
2460 fn layout_lines(
2461 rows: Range<DisplayRow>,
2462 snapshot: &EditorSnapshot,
2463 style: &EditorStyle,
2464 editor_width: Pixels,
2465 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2466 window: &mut Window,
2467 cx: &mut App,
2468 ) -> Vec<LineWithInvisibles> {
2469 if rows.start >= rows.end {
2470 return Vec::new();
2471 }
2472
2473 // Show the placeholder when the editor is empty
2474 if snapshot.is_empty() {
2475 let font_size = style.text.font_size.to_pixels(window.rem_size());
2476 let placeholder_color = cx.theme().colors().text_placeholder;
2477 let placeholder_text = snapshot.placeholder_text();
2478
2479 let placeholder_lines = placeholder_text
2480 .as_ref()
2481 .map_or("", AsRef::as_ref)
2482 .split('\n')
2483 .skip(rows.start.0 as usize)
2484 .chain(iter::repeat(""))
2485 .take(rows.len());
2486 placeholder_lines
2487 .filter_map(move |line| {
2488 let run = TextRun {
2489 len: line.len(),
2490 font: style.text.font(),
2491 color: placeholder_color,
2492 background_color: None,
2493 underline: Default::default(),
2494 strikethrough: None,
2495 };
2496 window
2497 .text_system()
2498 .shape_line(line.to_string().into(), font_size, &[run])
2499 .log_err()
2500 })
2501 .map(|line| LineWithInvisibles {
2502 width: line.width,
2503 len: line.len,
2504 fragments: smallvec![LineFragment::Text(line)],
2505 invisibles: Vec::new(),
2506 font_size,
2507 })
2508 .collect()
2509 } else {
2510 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2511 LineWithInvisibles::from_chunks(
2512 chunks,
2513 &style,
2514 MAX_LINE_LEN,
2515 rows.len(),
2516 snapshot.mode,
2517 editor_width,
2518 is_row_soft_wrapped,
2519 window,
2520 cx,
2521 )
2522 }
2523 }
2524
2525 fn prepaint_lines(
2526 &self,
2527 start_row: DisplayRow,
2528 line_layouts: &mut [LineWithInvisibles],
2529 line_height: Pixels,
2530 scroll_pixel_position: gpui::Point<Pixels>,
2531 content_origin: gpui::Point<Pixels>,
2532 window: &mut Window,
2533 cx: &mut App,
2534 ) -> SmallVec<[AnyElement; 1]> {
2535 let mut line_elements = SmallVec::new();
2536 for (ix, line) in line_layouts.iter_mut().enumerate() {
2537 let row = start_row + DisplayRow(ix as u32);
2538 line.prepaint(
2539 line_height,
2540 scroll_pixel_position,
2541 row,
2542 content_origin,
2543 &mut line_elements,
2544 window,
2545 cx,
2546 );
2547 }
2548 line_elements
2549 }
2550
2551 fn render_block(
2552 &self,
2553 block: &Block,
2554 available_width: AvailableSpace,
2555 block_id: BlockId,
2556 block_row_start: DisplayRow,
2557 snapshot: &EditorSnapshot,
2558 text_x: Pixels,
2559 rows: &Range<DisplayRow>,
2560 line_layouts: &[LineWithInvisibles],
2561 gutter_dimensions: &GutterDimensions,
2562 line_height: Pixels,
2563 em_width: Pixels,
2564 text_hitbox: &Hitbox,
2565 editor_width: Pixels,
2566 scroll_width: &mut Pixels,
2567 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2568 selections: &[Selection<Point>],
2569 selected_buffer_ids: &Vec<BufferId>,
2570 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2571 sticky_header_excerpt_id: Option<ExcerptId>,
2572 window: &mut Window,
2573 cx: &mut App,
2574 ) -> (AnyElement, Size<Pixels>) {
2575 let mut element = match block {
2576 Block::Custom(block) => {
2577 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2578 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2579 let align_to = block_start.to_display_point(snapshot);
2580 let anchor_x = text_x
2581 + if rows.contains(&align_to.row()) {
2582 line_layouts[align_to.row().minus(rows.start) as usize]
2583 .x_for_index(align_to.column() as usize)
2584 } else {
2585 layout_line(
2586 align_to.row(),
2587 snapshot,
2588 &self.style,
2589 editor_width,
2590 is_row_soft_wrapped,
2591 window,
2592 cx,
2593 )
2594 .x_for_index(align_to.column() as usize)
2595 };
2596
2597 let selected = selections
2598 .binary_search_by(|selection| {
2599 if selection.end <= block_start {
2600 Ordering::Less
2601 } else if selection.start >= block_end {
2602 Ordering::Greater
2603 } else {
2604 Ordering::Equal
2605 }
2606 })
2607 .is_ok();
2608
2609 div()
2610 .size_full()
2611 .child(block.render(&mut BlockContext {
2612 window,
2613 app: cx,
2614 anchor_x,
2615 gutter_dimensions,
2616 line_height,
2617 em_width,
2618 block_id,
2619 selected,
2620 max_width: text_hitbox.size.width.max(*scroll_width),
2621 editor_style: &self.style,
2622 }))
2623 .into_any()
2624 }
2625
2626 Block::FoldedBuffer {
2627 first_excerpt,
2628 height,
2629 ..
2630 } => {
2631 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2632 let result = v_flex().id(block_id).w_full();
2633
2634 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2635 result
2636 .child(self.render_buffer_header(
2637 first_excerpt,
2638 true,
2639 selected,
2640 false,
2641 jump_data,
2642 window,
2643 cx,
2644 ))
2645 .into_any_element()
2646 }
2647
2648 Block::ExcerptBoundary {
2649 excerpt,
2650 height,
2651 starts_new_buffer,
2652 ..
2653 } => {
2654 let color = cx.theme().colors().clone();
2655 let mut result = v_flex().id(block_id).w_full();
2656
2657 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2658
2659 if *starts_new_buffer {
2660 if sticky_header_excerpt_id != Some(excerpt.id) {
2661 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2662
2663 result = result.child(self.render_buffer_header(
2664 excerpt, false, selected, false, jump_data, window, cx,
2665 ));
2666 } else {
2667 result =
2668 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2669 }
2670 } else {
2671 result = result.child(
2672 h_flex().relative().child(
2673 div()
2674 .top(line_height / 2.)
2675 .absolute()
2676 .w_full()
2677 .h_px()
2678 .bg(color.border_variant),
2679 ),
2680 );
2681 };
2682
2683 result.into_any()
2684 }
2685 };
2686
2687 // Discover the element's content height, then round up to the nearest multiple of line height.
2688 let preliminary_size = element.layout_as_root(
2689 size(available_width, AvailableSpace::MinContent),
2690 window,
2691 cx,
2692 );
2693 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2694 let final_size = if preliminary_size.height == quantized_height {
2695 preliminary_size
2696 } else {
2697 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2698 };
2699
2700 if let BlockId::Custom(custom_block_id) = block_id {
2701 if block.height() > 0 {
2702 let element_height_in_lines =
2703 ((final_size.height / line_height).ceil() as u32).max(1);
2704 if element_height_in_lines != block.height() {
2705 resized_blocks.insert(custom_block_id, element_height_in_lines);
2706 }
2707 }
2708 }
2709
2710 (element, final_size)
2711 }
2712
2713 fn render_buffer_header(
2714 &self,
2715 for_excerpt: &ExcerptInfo,
2716 is_folded: bool,
2717 is_selected: bool,
2718 is_sticky: bool,
2719 jump_data: JumpData,
2720 window: &mut Window,
2721 cx: &mut App,
2722 ) -> Div {
2723 let editor = self.editor.read(cx);
2724 let file_status = editor
2725 .buffer
2726 .read(cx)
2727 .all_diff_hunks_expanded()
2728 .then(|| {
2729 editor
2730 .project
2731 .as_ref()?
2732 .read(cx)
2733 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2734 })
2735 .flatten();
2736
2737 let include_root = editor
2738 .project
2739 .as_ref()
2740 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2741 .unwrap_or_default();
2742 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2743 let filename = path
2744 .as_ref()
2745 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2746 let parent_path = path.as_ref().and_then(|path| {
2747 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2748 });
2749 let focus_handle = editor.focus_handle(cx);
2750 let colors = cx.theme().colors();
2751
2752 div()
2753 .p_1()
2754 .w_full()
2755 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2756 .child(
2757 h_flex()
2758 .size_full()
2759 .gap_2()
2760 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2761 .pl_0p5()
2762 .pr_5()
2763 .rounded_sm()
2764 .when(is_sticky, |el| el.shadow_md())
2765 .border_1()
2766 .map(|div| {
2767 let border_color = if is_selected
2768 && is_folded
2769 && focus_handle.contains_focused(window, cx)
2770 {
2771 colors.border_focused
2772 } else {
2773 colors.border
2774 };
2775 div.border_color(border_color)
2776 })
2777 .bg(colors.editor_subheader_background)
2778 .hover(|style| style.bg(colors.element_hover))
2779 .map(|header| {
2780 let editor = self.editor.clone();
2781 let buffer_id = for_excerpt.buffer_id;
2782 let toggle_chevron_icon =
2783 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2784 header.child(
2785 div()
2786 .hover(|style| style.bg(colors.element_selected))
2787 .rounded_xs()
2788 .child(
2789 ButtonLike::new("toggle-buffer-fold")
2790 .style(ui::ButtonStyle::Transparent)
2791 .height(px(28.).into())
2792 .width(px(28.).into())
2793 .children(toggle_chevron_icon)
2794 .tooltip({
2795 let focus_handle = focus_handle.clone();
2796 move |window, cx| {
2797 Tooltip::for_action_in(
2798 "Toggle Excerpt Fold",
2799 &ToggleFold,
2800 &focus_handle,
2801 window,
2802 cx,
2803 )
2804 }
2805 })
2806 .on_click(move |_, _, cx| {
2807 if is_folded {
2808 editor.update(cx, |editor, cx| {
2809 editor.unfold_buffer(buffer_id, cx);
2810 });
2811 } else {
2812 editor.update(cx, |editor, cx| {
2813 editor.fold_buffer(buffer_id, cx);
2814 });
2815 }
2816 }),
2817 ),
2818 )
2819 })
2820 .children(
2821 editor
2822 .addons
2823 .values()
2824 .filter_map(|addon| {
2825 addon.render_buffer_header_controls(for_excerpt, window, cx)
2826 })
2827 .take(1),
2828 )
2829 .child(
2830 h_flex()
2831 .cursor_pointer()
2832 .id("path header block")
2833 .size_full()
2834 .justify_between()
2835 .child(
2836 h_flex()
2837 .gap_2()
2838 .child(
2839 Label::new(
2840 filename
2841 .map(SharedString::from)
2842 .unwrap_or_else(|| "untitled".into()),
2843 )
2844 .single_line()
2845 .when_some(
2846 file_status,
2847 |el, status| {
2848 el.color(if status.is_conflicted() {
2849 Color::Conflict
2850 } else if status.is_modified() {
2851 Color::Modified
2852 } else if status.is_deleted() {
2853 Color::Disabled
2854 } else {
2855 Color::Created
2856 })
2857 .when(status.is_deleted(), |el| el.strikethrough())
2858 },
2859 ),
2860 )
2861 .when_some(parent_path, |then, path| {
2862 then.child(div().child(path).text_color(
2863 if file_status.is_some_and(FileStatus::is_deleted) {
2864 colors.text_disabled
2865 } else {
2866 colors.text_muted
2867 },
2868 ))
2869 }),
2870 )
2871 .when(is_selected, |el| {
2872 el.child(
2873 h_flex()
2874 .id("jump-to-file-button")
2875 .gap_2p5()
2876 .child(Label::new("Jump To File"))
2877 .children(
2878 KeyBinding::for_action_in(
2879 &OpenExcerpts,
2880 &focus_handle,
2881 window,
2882 cx,
2883 )
2884 .map(|binding| binding.into_any_element()),
2885 ),
2886 )
2887 })
2888 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2889 .on_click(window.listener_for(&self.editor, {
2890 move |editor, e: &ClickEvent, window, cx| {
2891 editor.open_excerpts_common(
2892 Some(jump_data.clone()),
2893 e.down.modifiers.secondary(),
2894 window,
2895 cx,
2896 );
2897 }
2898 })),
2899 ),
2900 )
2901 }
2902
2903 fn render_blocks(
2904 &self,
2905 rows: Range<DisplayRow>,
2906 snapshot: &EditorSnapshot,
2907 hitbox: &Hitbox,
2908 text_hitbox: &Hitbox,
2909 editor_width: Pixels,
2910 scroll_width: &mut Pixels,
2911 gutter_dimensions: &GutterDimensions,
2912 em_width: Pixels,
2913 text_x: Pixels,
2914 line_height: Pixels,
2915 line_layouts: &[LineWithInvisibles],
2916 selections: &[Selection<Point>],
2917 selected_buffer_ids: &Vec<BufferId>,
2918 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2919 sticky_header_excerpt_id: Option<ExcerptId>,
2920 window: &mut Window,
2921 cx: &mut App,
2922 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2923 let (fixed_blocks, non_fixed_blocks) = snapshot
2924 .blocks_in_range(rows.clone())
2925 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2926
2927 let mut focused_block = self
2928 .editor
2929 .update(cx, |editor, _| editor.take_focused_block());
2930 let mut fixed_block_max_width = Pixels::ZERO;
2931 let mut blocks = Vec::new();
2932 let mut resized_blocks = HashMap::default();
2933
2934 for (row, block) in fixed_blocks {
2935 let block_id = block.id();
2936
2937 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2938 focused_block = None;
2939 }
2940
2941 let (element, element_size) = self.render_block(
2942 block,
2943 AvailableSpace::MinContent,
2944 block_id,
2945 row,
2946 snapshot,
2947 text_x,
2948 &rows,
2949 line_layouts,
2950 gutter_dimensions,
2951 line_height,
2952 em_width,
2953 text_hitbox,
2954 editor_width,
2955 scroll_width,
2956 &mut resized_blocks,
2957 selections,
2958 selected_buffer_ids,
2959 is_row_soft_wrapped,
2960 sticky_header_excerpt_id,
2961 window,
2962 cx,
2963 );
2964 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2965 blocks.push(BlockLayout {
2966 id: block_id,
2967 row: Some(row),
2968 element,
2969 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2970 style: BlockStyle::Fixed,
2971 is_buffer_header: block.is_buffer_header(),
2972 });
2973 }
2974
2975 for (row, block) in non_fixed_blocks {
2976 let style = block.style();
2977 let width = match style {
2978 BlockStyle::Sticky => hitbox.size.width,
2979 BlockStyle::Flex => hitbox
2980 .size
2981 .width
2982 .max(fixed_block_max_width)
2983 .max(gutter_dimensions.width + *scroll_width),
2984 BlockStyle::Fixed => unreachable!(),
2985 };
2986 let block_id = block.id();
2987
2988 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2989 focused_block = None;
2990 }
2991
2992 let (element, element_size) = self.render_block(
2993 block,
2994 width.into(),
2995 block_id,
2996 row,
2997 snapshot,
2998 text_x,
2999 &rows,
3000 line_layouts,
3001 gutter_dimensions,
3002 line_height,
3003 em_width,
3004 text_hitbox,
3005 editor_width,
3006 scroll_width,
3007 &mut resized_blocks,
3008 selections,
3009 selected_buffer_ids,
3010 is_row_soft_wrapped,
3011 sticky_header_excerpt_id,
3012 window,
3013 cx,
3014 );
3015
3016 blocks.push(BlockLayout {
3017 id: block_id,
3018 row: Some(row),
3019 element,
3020 available_space: size(width.into(), element_size.height.into()),
3021 style,
3022 is_buffer_header: block.is_buffer_header(),
3023 });
3024 }
3025
3026 if let Some(focused_block) = focused_block {
3027 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3028 if focus_handle.is_focused(window) {
3029 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3030 let style = block.style();
3031 let width = match style {
3032 BlockStyle::Fixed => AvailableSpace::MinContent,
3033 BlockStyle::Flex => AvailableSpace::Definite(
3034 hitbox
3035 .size
3036 .width
3037 .max(fixed_block_max_width)
3038 .max(gutter_dimensions.width + *scroll_width),
3039 ),
3040 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3041 };
3042
3043 let (element, element_size) = self.render_block(
3044 &block,
3045 width,
3046 focused_block.id,
3047 rows.end,
3048 snapshot,
3049 text_x,
3050 &rows,
3051 line_layouts,
3052 gutter_dimensions,
3053 line_height,
3054 em_width,
3055 text_hitbox,
3056 editor_width,
3057 scroll_width,
3058 &mut resized_blocks,
3059 selections,
3060 selected_buffer_ids,
3061 is_row_soft_wrapped,
3062 sticky_header_excerpt_id,
3063 window,
3064 cx,
3065 );
3066
3067 blocks.push(BlockLayout {
3068 id: block.id(),
3069 row: None,
3070 element,
3071 available_space: size(width, element_size.height.into()),
3072 style,
3073 is_buffer_header: block.is_buffer_header(),
3074 });
3075 }
3076 }
3077 }
3078 }
3079
3080 if resized_blocks.is_empty() {
3081 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3082 Ok(blocks)
3083 } else {
3084 Err(resized_blocks)
3085 }
3086 }
3087
3088 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3089 /// a restart of rendering for the editor based on the new sizes.
3090 fn layout_blocks(
3091 &self,
3092 blocks: &mut Vec<BlockLayout>,
3093 block_starts: &mut HashSet<DisplayRow>,
3094 hitbox: &Hitbox,
3095 line_height: Pixels,
3096 scroll_pixel_position: gpui::Point<Pixels>,
3097 window: &mut Window,
3098 cx: &mut App,
3099 ) {
3100 for block in blocks {
3101 let mut origin = if let Some(row) = block.row {
3102 block_starts.insert(row);
3103 hitbox.origin
3104 + point(
3105 Pixels::ZERO,
3106 row.as_f32() * line_height - scroll_pixel_position.y,
3107 )
3108 } else {
3109 // Position the block outside the visible area
3110 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3111 };
3112
3113 if !matches!(block.style, BlockStyle::Sticky) {
3114 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3115 }
3116
3117 let focus_handle =
3118 block
3119 .element
3120 .prepaint_as_root(origin, block.available_space, window, cx);
3121
3122 if let Some(focus_handle) = focus_handle {
3123 self.editor.update(cx, |editor, _cx| {
3124 editor.set_focused_block(FocusedBlock {
3125 id: block.id,
3126 focus_handle: focus_handle.downgrade(),
3127 });
3128 });
3129 }
3130 }
3131 }
3132
3133 fn layout_sticky_buffer_header(
3134 &self,
3135 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3136 scroll_position: f32,
3137 line_height: Pixels,
3138 snapshot: &EditorSnapshot,
3139 hitbox: &Hitbox,
3140 selected_buffer_ids: &Vec<BufferId>,
3141 blocks: &[BlockLayout],
3142 window: &mut Window,
3143 cx: &mut App,
3144 ) -> AnyElement {
3145 let jump_data = header_jump_data(
3146 snapshot,
3147 DisplayRow(scroll_position as u32),
3148 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3149 excerpt,
3150 );
3151
3152 let editor_bg_color = cx.theme().colors().editor_background;
3153
3154 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3155
3156 let mut header = v_flex()
3157 .relative()
3158 .child(
3159 div()
3160 .w(hitbox.bounds.size.width)
3161 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3162 .bg(linear_gradient(
3163 0.,
3164 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3165 linear_color_stop(editor_bg_color, 0.6),
3166 ))
3167 .absolute()
3168 .top_0(),
3169 )
3170 .child(
3171 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3172 .into_any_element(),
3173 )
3174 .into_any_element();
3175
3176 let mut origin = hitbox.origin;
3177 // Move floating header up to avoid colliding with the next buffer header.
3178 for block in blocks.iter() {
3179 if !block.is_buffer_header {
3180 continue;
3181 }
3182
3183 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3184 continue;
3185 };
3186
3187 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3188 let offset = scroll_position - max_row as f32;
3189
3190 if offset > 0.0 {
3191 origin.y -= offset * line_height;
3192 }
3193 break;
3194 }
3195
3196 let size = size(
3197 AvailableSpace::Definite(hitbox.size.width),
3198 AvailableSpace::MinContent,
3199 );
3200
3201 header.prepaint_as_root(origin, size, window, cx);
3202
3203 header
3204 }
3205
3206 fn layout_cursor_popovers(
3207 &self,
3208 line_height: Pixels,
3209 text_hitbox: &Hitbox,
3210 content_origin: gpui::Point<Pixels>,
3211 start_row: DisplayRow,
3212 scroll_pixel_position: gpui::Point<Pixels>,
3213 line_layouts: &[LineWithInvisibles],
3214 cursor: DisplayPoint,
3215 cursor_point: Point,
3216 style: &EditorStyle,
3217 window: &mut Window,
3218 cx: &mut App,
3219 ) {
3220 let mut min_menu_height = Pixels::ZERO;
3221 let mut max_menu_height = Pixels::ZERO;
3222 let mut height_above_menu = Pixels::ZERO;
3223 let height_below_menu = Pixels::ZERO;
3224 let mut edit_prediction_popover_visible = false;
3225 let mut context_menu_visible = false;
3226 let context_menu_placement;
3227
3228 {
3229 let editor = self.editor.read(cx);
3230 if editor
3231 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3232 {
3233 height_above_menu +=
3234 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3235 edit_prediction_popover_visible = true;
3236 }
3237
3238 if editor.context_menu_visible() {
3239 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3240 let (min_height_in_lines, max_height_in_lines) = editor
3241 .context_menu_options
3242 .as_ref()
3243 .map_or((3, 12), |options| {
3244 (options.min_entries_visible, options.max_entries_visible)
3245 });
3246
3247 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3248 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3249 context_menu_visible = true;
3250 }
3251 }
3252 context_menu_placement = editor
3253 .context_menu_options
3254 .as_ref()
3255 .and_then(|options| options.placement.clone());
3256 }
3257
3258 let visible = edit_prediction_popover_visible || context_menu_visible;
3259 if !visible {
3260 return;
3261 }
3262
3263 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3264 let target_position = content_origin
3265 + gpui::Point {
3266 x: cmp::max(
3267 px(0.),
3268 cursor_row_layout.x_for_index(cursor.column() as usize)
3269 - scroll_pixel_position.x,
3270 ),
3271 y: cmp::max(
3272 px(0.),
3273 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3274 ),
3275 };
3276
3277 let viewport_bounds =
3278 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3279 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3280 ..Default::default()
3281 });
3282
3283 let min_height = height_above_menu + min_menu_height + height_below_menu;
3284 let max_height = height_above_menu + max_menu_height + height_below_menu;
3285 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3286 target_position,
3287 line_height,
3288 min_height,
3289 max_height,
3290 context_menu_placement,
3291 text_hitbox,
3292 viewport_bounds,
3293 window,
3294 cx,
3295 |height, max_width_for_stable_x, y_flipped, window, cx| {
3296 // First layout the menu to get its size - others can be at least this wide.
3297 let context_menu = if context_menu_visible {
3298 let menu_height = if y_flipped {
3299 height - height_below_menu
3300 } else {
3301 height - height_above_menu
3302 };
3303 let mut element = self
3304 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3305 .expect("Visible context menu should always render.");
3306 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3307 Some((CursorPopoverType::CodeContextMenu, element, size))
3308 } else {
3309 None
3310 };
3311 let min_width = context_menu
3312 .as_ref()
3313 .map_or(px(0.), |(_, _, size)| size.width);
3314 let max_width = max_width_for_stable_x.max(
3315 context_menu
3316 .as_ref()
3317 .map_or(px(0.), |(_, _, size)| size.width),
3318 );
3319
3320 let edit_prediction = if edit_prediction_popover_visible {
3321 self.editor.update(cx, move |editor, cx| {
3322 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3323 let mut element = editor.render_edit_prediction_cursor_popover(
3324 min_width,
3325 max_width,
3326 cursor_point,
3327 style,
3328 accept_binding.keystroke(),
3329 window,
3330 cx,
3331 )?;
3332 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3333 Some((CursorPopoverType::EditPrediction, element, size))
3334 })
3335 } else {
3336 None
3337 };
3338 vec![edit_prediction, context_menu]
3339 .into_iter()
3340 .flatten()
3341 .collect::<Vec<_>>()
3342 },
3343 ) else {
3344 return;
3345 };
3346
3347 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3348 .iter()
3349 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3350 else {
3351 return;
3352 };
3353 let last_ix = laid_out_popovers.len() - 1;
3354 let menu_is_last = menu_ix == last_ix;
3355 let first_popover_bounds = laid_out_popovers[0].1;
3356 let last_popover_bounds = laid_out_popovers[last_ix].1;
3357
3358 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3359 // right, and otherwise it goes below or to the right.
3360 let mut target_bounds = Bounds::from_corners(
3361 first_popover_bounds.origin,
3362 last_popover_bounds.bottom_right(),
3363 );
3364 target_bounds.size.width = menu_bounds.size.width;
3365
3366 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3367 // based on this is preferred for layout stability.
3368 let mut max_target_bounds = target_bounds;
3369 max_target_bounds.size.height = max_height;
3370 if y_flipped {
3371 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3372 }
3373
3374 // Add spacing around `target_bounds` and `max_target_bounds`.
3375 let mut extend_amount = Edges::all(MENU_GAP);
3376 if y_flipped {
3377 extend_amount.bottom = line_height;
3378 } else {
3379 extend_amount.top = line_height;
3380 }
3381 let target_bounds = target_bounds.extend(extend_amount);
3382 let max_target_bounds = max_target_bounds.extend(extend_amount);
3383
3384 let must_place_above_or_below =
3385 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3386 laid_out_popovers[menu_ix + 1..]
3387 .iter()
3388 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3389 } else {
3390 false
3391 };
3392
3393 self.layout_context_menu_aside(
3394 y_flipped,
3395 *menu_bounds,
3396 target_bounds,
3397 max_target_bounds,
3398 max_menu_height,
3399 must_place_above_or_below,
3400 text_hitbox,
3401 viewport_bounds,
3402 window,
3403 cx,
3404 );
3405 }
3406
3407 fn layout_gutter_menu(
3408 &self,
3409 line_height: Pixels,
3410 text_hitbox: &Hitbox,
3411 content_origin: gpui::Point<Pixels>,
3412 scroll_pixel_position: gpui::Point<Pixels>,
3413 gutter_overshoot: Pixels,
3414 window: &mut Window,
3415 cx: &mut App,
3416 ) {
3417 let editor = self.editor.read(cx);
3418 if !editor.context_menu_visible() {
3419 return;
3420 }
3421 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3422 editor.context_menu_origin()
3423 else {
3424 return;
3425 };
3426 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3427 // indicator than just a plain first column of the text field.
3428 let target_position = content_origin
3429 + gpui::Point {
3430 x: -gutter_overshoot,
3431 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3432 };
3433
3434 let (min_height_in_lines, max_height_in_lines) = editor
3435 .context_menu_options
3436 .as_ref()
3437 .map_or((3, 12), |options| {
3438 (options.min_entries_visible, options.max_entries_visible)
3439 });
3440
3441 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3442 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3443 let viewport_bounds =
3444 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3445 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3446 ..Default::default()
3447 });
3448 self.layout_popovers_above_or_below_line(
3449 target_position,
3450 line_height,
3451 min_height,
3452 max_height,
3453 editor
3454 .context_menu_options
3455 .as_ref()
3456 .and_then(|options| options.placement.clone()),
3457 text_hitbox,
3458 viewport_bounds,
3459 window,
3460 cx,
3461 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3462 let mut element = self
3463 .render_context_menu(line_height, height, y_flipped, window, cx)
3464 .expect("Visible context menu should always render.");
3465 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3466 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3467 },
3468 );
3469 }
3470
3471 fn layout_popovers_above_or_below_line(
3472 &self,
3473 target_position: gpui::Point<Pixels>,
3474 line_height: Pixels,
3475 min_height: Pixels,
3476 max_height: Pixels,
3477 placement: Option<ContextMenuPlacement>,
3478 text_hitbox: &Hitbox,
3479 viewport_bounds: Bounds<Pixels>,
3480 window: &mut Window,
3481 cx: &mut App,
3482 make_sized_popovers: impl FnOnce(
3483 Pixels,
3484 Pixels,
3485 bool,
3486 &mut Window,
3487 &mut App,
3488 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3489 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3490 let text_style = TextStyleRefinement {
3491 line_height: Some(DefiniteLength::Fraction(
3492 BufferLineHeight::Comfortable.value(),
3493 )),
3494 ..Default::default()
3495 };
3496 window.with_text_style(Some(text_style), |window| {
3497 // If the max height won't fit below and there is more space above, put it above the line.
3498 let bottom_y_when_flipped = target_position.y - line_height;
3499 let available_above = bottom_y_when_flipped - text_hitbox.top();
3500 let available_below = text_hitbox.bottom() - target_position.y;
3501 let y_overflows_below = max_height > available_below;
3502 let mut y_flipped = match placement {
3503 Some(ContextMenuPlacement::Above) => true,
3504 Some(ContextMenuPlacement::Below) => false,
3505 None => y_overflows_below && available_above > available_below,
3506 };
3507 let mut height = cmp::min(
3508 max_height,
3509 if y_flipped {
3510 available_above
3511 } else {
3512 available_below
3513 },
3514 );
3515
3516 // If the min height doesn't fit within text bounds, instead fit within the window.
3517 if height < min_height {
3518 let available_above = bottom_y_when_flipped;
3519 let available_below = viewport_bounds.bottom() - target_position.y;
3520 let (y_flipped_override, height_override) = match placement {
3521 Some(ContextMenuPlacement::Above) => {
3522 (true, cmp::min(available_above, min_height))
3523 }
3524 Some(ContextMenuPlacement::Below) => {
3525 (false, cmp::min(available_below, min_height))
3526 }
3527 None => {
3528 if available_below > min_height {
3529 (false, min_height)
3530 } else if available_above > min_height {
3531 (true, min_height)
3532 } else if available_above > available_below {
3533 (true, available_above)
3534 } else {
3535 (false, available_below)
3536 }
3537 }
3538 };
3539 y_flipped = y_flipped_override;
3540 height = height_override;
3541 }
3542
3543 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3544
3545 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3546 // for very narrow windows.
3547 let popovers =
3548 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3549 if popovers.is_empty() {
3550 return None;
3551 }
3552
3553 let max_width = popovers
3554 .iter()
3555 .map(|(_, _, size)| size.width)
3556 .max()
3557 .unwrap_or_default();
3558
3559 let mut current_position = gpui::Point {
3560 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3561 // overflow. Include space for the scrollbar.
3562 x: target_position
3563 .x
3564 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3565 y: if y_flipped {
3566 bottom_y_when_flipped
3567 } else {
3568 target_position.y
3569 },
3570 };
3571
3572 let mut laid_out_popovers = popovers
3573 .into_iter()
3574 .map(|(popover_type, element, size)| {
3575 if y_flipped {
3576 current_position.y -= size.height;
3577 }
3578 let position = current_position;
3579 window.defer_draw(element, current_position, 1);
3580 if !y_flipped {
3581 current_position.y += size.height + MENU_GAP;
3582 } else {
3583 current_position.y -= MENU_GAP;
3584 }
3585 (popover_type, Bounds::new(position, size))
3586 })
3587 .collect::<Vec<_>>();
3588
3589 if y_flipped {
3590 laid_out_popovers.reverse();
3591 }
3592
3593 Some((laid_out_popovers, y_flipped))
3594 })
3595 }
3596
3597 fn layout_context_menu_aside(
3598 &self,
3599 y_flipped: bool,
3600 menu_bounds: Bounds<Pixels>,
3601 target_bounds: Bounds<Pixels>,
3602 max_target_bounds: Bounds<Pixels>,
3603 max_height: Pixels,
3604 must_place_above_or_below: bool,
3605 text_hitbox: &Hitbox,
3606 viewport_bounds: Bounds<Pixels>,
3607 window: &mut Window,
3608 cx: &mut App,
3609 ) {
3610 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3611 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3612 && !must_place_above_or_below
3613 {
3614 let max_width = cmp::min(
3615 available_within_viewport.right - px(1.),
3616 MENU_ASIDE_MAX_WIDTH,
3617 );
3618 let Some(mut aside) = self.render_context_menu_aside(
3619 size(max_width, max_height - POPOVER_Y_PADDING),
3620 window,
3621 cx,
3622 ) else {
3623 return;
3624 };
3625 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3626 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3627 Some((aside, right_position))
3628 } else {
3629 let max_size = size(
3630 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3631 // won't be needed here.
3632 cmp::min(
3633 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3634 viewport_bounds.right(),
3635 ),
3636 cmp::min(
3637 max_height,
3638 cmp::max(
3639 available_within_viewport.top,
3640 available_within_viewport.bottom,
3641 ),
3642 ) - POPOVER_Y_PADDING,
3643 );
3644 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3645 return;
3646 };
3647 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3648
3649 let top_position = point(
3650 menu_bounds.origin.x,
3651 target_bounds.top() - actual_size.height,
3652 );
3653 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3654
3655 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3656 // Prefer to fit on the same side of the line as the menu, then on the other side of
3657 // the line.
3658 if !y_flipped && wanted.height < available.bottom {
3659 Some(bottom_position)
3660 } else if !y_flipped && wanted.height < available.top {
3661 Some(top_position)
3662 } else if y_flipped && wanted.height < available.top {
3663 Some(top_position)
3664 } else if y_flipped && wanted.height < available.bottom {
3665 Some(bottom_position)
3666 } else {
3667 None
3668 }
3669 };
3670
3671 // Prefer choosing a direction using max sizes rather than actual size for stability.
3672 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3673 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3674 let aside_position = fit_within(available_within_text, wanted)
3675 // Fallback: fit max size in window.
3676 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3677 // Fallback: fit actual size in window.
3678 .or_else(|| fit_within(available_within_viewport, actual_size));
3679
3680 aside_position.map(|position| (aside, position))
3681 };
3682
3683 // Skip drawing if it doesn't fit anywhere.
3684 if let Some((aside, position)) = positioned_aside {
3685 window.defer_draw(aside, position, 2);
3686 }
3687 }
3688
3689 fn render_context_menu(
3690 &self,
3691 line_height: Pixels,
3692 height: Pixels,
3693 y_flipped: bool,
3694 window: &mut Window,
3695 cx: &mut App,
3696 ) -> Option<AnyElement> {
3697 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3698 self.editor.update(cx, |editor, cx| {
3699 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3700 })
3701 }
3702
3703 fn render_context_menu_aside(
3704 &self,
3705 max_size: Size<Pixels>,
3706 window: &mut Window,
3707 cx: &mut App,
3708 ) -> Option<AnyElement> {
3709 if max_size.width < px(100.) || max_size.height < px(12.) {
3710 None
3711 } else {
3712 self.editor.update(cx, |editor, cx| {
3713 editor.render_context_menu_aside(max_size, window, cx)
3714 })
3715 }
3716 }
3717
3718 fn layout_mouse_context_menu(
3719 &self,
3720 editor_snapshot: &EditorSnapshot,
3721 visible_range: Range<DisplayRow>,
3722 content_origin: gpui::Point<Pixels>,
3723 window: &mut Window,
3724 cx: &mut App,
3725 ) -> Option<AnyElement> {
3726 let position = self.editor.update(cx, |editor, _cx| {
3727 let visible_start_point = editor.display_to_pixel_point(
3728 DisplayPoint::new(visible_range.start, 0),
3729 editor_snapshot,
3730 window,
3731 )?;
3732 let visible_end_point = editor.display_to_pixel_point(
3733 DisplayPoint::new(visible_range.end, 0),
3734 editor_snapshot,
3735 window,
3736 )?;
3737
3738 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3739 let (source_display_point, position) = match mouse_context_menu.position {
3740 MenuPosition::PinnedToScreen(point) => (None, point),
3741 MenuPosition::PinnedToEditor { source, offset } => {
3742 let source_display_point = source.to_display_point(editor_snapshot);
3743 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3744 let position = content_origin + source_point + offset;
3745 (Some(source_display_point), position)
3746 }
3747 };
3748
3749 let source_included = source_display_point.map_or(true, |source_display_point| {
3750 visible_range
3751 .to_inclusive()
3752 .contains(&source_display_point.row())
3753 });
3754 let position_included =
3755 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3756 if !source_included && !position_included {
3757 None
3758 } else {
3759 Some(position)
3760 }
3761 })?;
3762
3763 let text_style = TextStyleRefinement {
3764 line_height: Some(DefiniteLength::Fraction(
3765 BufferLineHeight::Comfortable.value(),
3766 )),
3767 ..Default::default()
3768 };
3769 window.with_text_style(Some(text_style), |window| {
3770 let mut element = self.editor.update(cx, |editor, _| {
3771 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3772 let context_menu = mouse_context_menu.context_menu.clone();
3773
3774 Some(
3775 deferred(
3776 anchored()
3777 .position(position)
3778 .child(context_menu)
3779 .anchor(Corner::TopLeft)
3780 .snap_to_window_with_margin(px(8.)),
3781 )
3782 .with_priority(1)
3783 .into_any(),
3784 )
3785 })?;
3786
3787 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3788 Some(element)
3789 })
3790 }
3791
3792 fn layout_hover_popovers(
3793 &self,
3794 snapshot: &EditorSnapshot,
3795 hitbox: &Hitbox,
3796 text_hitbox: &Hitbox,
3797 visible_display_row_range: Range<DisplayRow>,
3798 content_origin: gpui::Point<Pixels>,
3799 scroll_pixel_position: gpui::Point<Pixels>,
3800 line_layouts: &[LineWithInvisibles],
3801 line_height: Pixels,
3802 em_width: Pixels,
3803 window: &mut Window,
3804 cx: &mut App,
3805 ) {
3806 struct MeasuredHoverPopover {
3807 element: AnyElement,
3808 size: Size<Pixels>,
3809 horizontal_offset: Pixels,
3810 }
3811
3812 let max_size = size(
3813 (120. * em_width) // Default size
3814 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3815 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3816 (16. * line_height) // Default size
3817 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3818 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3819 );
3820
3821 let hover_popovers = self.editor.update(cx, |editor, cx| {
3822 editor
3823 .hover_state
3824 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3825 });
3826 let Some((position, hover_popovers)) = hover_popovers else {
3827 return;
3828 };
3829
3830 // This is safe because we check on layout whether the required row is available
3831 let hovered_row_layout =
3832 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3833
3834 // Compute Hovered Point
3835 let x =
3836 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3837 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3838 let hovered_point = content_origin + point(x, y);
3839
3840 let mut overall_height = Pixels::ZERO;
3841 let mut measured_hover_popovers = Vec::new();
3842 for mut hover_popover in hover_popovers {
3843 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3844 let horizontal_offset =
3845 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3846
3847 overall_height += HOVER_POPOVER_GAP + size.height;
3848
3849 measured_hover_popovers.push(MeasuredHoverPopover {
3850 element: hover_popover,
3851 size,
3852 horizontal_offset,
3853 });
3854 }
3855 overall_height += HOVER_POPOVER_GAP;
3856
3857 fn draw_occluder(
3858 width: Pixels,
3859 origin: gpui::Point<Pixels>,
3860 window: &mut Window,
3861 cx: &mut App,
3862 ) {
3863 let mut occlusion = div()
3864 .size_full()
3865 .occlude()
3866 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3867 .into_any_element();
3868 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3869 window.defer_draw(occlusion, origin, 2);
3870 }
3871
3872 if hovered_point.y > overall_height {
3873 // There is enough space above. Render popovers above the hovered point
3874 let mut current_y = hovered_point.y;
3875 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3876 let size = popover.size;
3877 let popover_origin = point(
3878 hovered_point.x + popover.horizontal_offset,
3879 current_y - size.height,
3880 );
3881
3882 window.defer_draw(popover.element, popover_origin, 2);
3883 if position != itertools::Position::Last {
3884 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3885 draw_occluder(size.width, origin, window, cx);
3886 }
3887
3888 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3889 }
3890 } else {
3891 // There is not enough space above. Render popovers below the hovered point
3892 let mut current_y = hovered_point.y + line_height;
3893 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3894 let size = popover.size;
3895 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3896
3897 window.defer_draw(popover.element, popover_origin, 2);
3898 if position != itertools::Position::Last {
3899 let origin = point(popover_origin.x, popover_origin.y + size.height);
3900 draw_occluder(size.width, origin, window, cx);
3901 }
3902
3903 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3904 }
3905 }
3906 }
3907
3908 fn layout_diff_hunk_controls(
3909 &self,
3910 row_range: Range<DisplayRow>,
3911 row_infos: &[RowInfo],
3912 text_hitbox: &Hitbox,
3913 position_map: &PositionMap,
3914 newest_cursor_position: Option<DisplayPoint>,
3915 line_height: Pixels,
3916 scroll_pixel_position: gpui::Point<Pixels>,
3917 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3918 editor: Entity<Editor>,
3919 window: &mut Window,
3920 cx: &mut App,
3921 ) -> Vec<AnyElement> {
3922 let point_for_position = position_map.point_for_position(window.mouse_position());
3923
3924 let mut controls = vec![];
3925
3926 let active_positions = [
3927 Some(point_for_position.previous_valid),
3928 newest_cursor_position,
3929 ];
3930
3931 for (hunk, _) in display_hunks {
3932 if let DisplayDiffHunk::Unfolded {
3933 display_row_range,
3934 multi_buffer_range,
3935 status,
3936 is_created_file,
3937 ..
3938 } = &hunk
3939 {
3940 if display_row_range.start < row_range.start
3941 || display_row_range.start >= row_range.end
3942 {
3943 continue;
3944 }
3945 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3946 if row_infos[row_ix].diff_status.is_none() {
3947 continue;
3948 }
3949 if row_infos[row_ix]
3950 .diff_status
3951 .is_some_and(|status| status.is_added())
3952 && !status.is_added()
3953 {
3954 continue;
3955 }
3956 if active_positions
3957 .iter()
3958 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3959 {
3960 let y = display_row_range.start.as_f32() * line_height
3961 + text_hitbox.bounds.top()
3962 - scroll_pixel_position.y;
3963
3964 let mut element = diff_hunk_controls(
3965 display_row_range.start.0,
3966 status,
3967 multi_buffer_range.clone(),
3968 *is_created_file,
3969 line_height,
3970 &editor,
3971 cx,
3972 );
3973 let size =
3974 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3975
3976 let x = text_hitbox.bounds.right()
3977 - self.style.scrollbar_width
3978 - px(10.)
3979 - size.width;
3980
3981 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3982 element.prepaint(window, cx)
3983 });
3984 controls.push(element);
3985 }
3986 }
3987 }
3988
3989 controls
3990 }
3991
3992 fn layout_signature_help(
3993 &self,
3994 hitbox: &Hitbox,
3995 content_origin: gpui::Point<Pixels>,
3996 scroll_pixel_position: gpui::Point<Pixels>,
3997 newest_selection_head: Option<DisplayPoint>,
3998 start_row: DisplayRow,
3999 line_layouts: &[LineWithInvisibles],
4000 line_height: Pixels,
4001 em_width: Pixels,
4002 window: &mut Window,
4003 cx: &mut App,
4004 ) {
4005 if !self.editor.focus_handle(cx).is_focused(window) {
4006 return;
4007 }
4008 let Some(newest_selection_head) = newest_selection_head else {
4009 return;
4010 };
4011 let selection_row = newest_selection_head.row();
4012 if selection_row < start_row {
4013 return;
4014 }
4015 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4016 else {
4017 return;
4018 };
4019
4020 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4021 - scroll_pixel_position.x
4022 + content_origin.x;
4023 let start_y =
4024 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4025
4026 let max_size = size(
4027 (120. * em_width) // Default size
4028 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4029 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4030 (16. * line_height) // Default size
4031 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4032 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4033 );
4034
4035 let maybe_element = self.editor.update(cx, |editor, cx| {
4036 if let Some(popover) = editor.signature_help_state.popover_mut() {
4037 let element = popover.render(max_size, cx);
4038 Some(element)
4039 } else {
4040 None
4041 }
4042 });
4043 if let Some(mut element) = maybe_element {
4044 let window_size = window.viewport_size();
4045 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4046 let mut point = point(start_x, start_y - size.height);
4047
4048 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4049 if point.x + size.width >= window_size.width {
4050 point.x = window_size.width - size.width;
4051 }
4052
4053 window.defer_draw(element, point, 1)
4054 }
4055 }
4056
4057 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4058 window.paint_layer(layout.hitbox.bounds, |window| {
4059 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4060 let gutter_bg = cx.theme().colors().editor_gutter_background;
4061 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4062 window.paint_quad(fill(
4063 layout.position_map.text_hitbox.bounds,
4064 self.style.background,
4065 ));
4066
4067 if let EditorMode::Full = layout.mode {
4068 let mut active_rows = layout.active_rows.iter().peekable();
4069 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4070 let mut end_row = start_row.0;
4071 while active_rows
4072 .peek()
4073 .map_or(false, |(active_row, has_selection)| {
4074 active_row.0 == end_row + 1
4075 && has_selection.selection == contains_non_empty_selection.selection
4076 })
4077 {
4078 active_rows.next().unwrap();
4079 end_row += 1;
4080 }
4081
4082 if !contains_non_empty_selection.selection {
4083 let highlight_h_range =
4084 match layout.position_map.snapshot.current_line_highlight {
4085 CurrentLineHighlight::Gutter => Some(Range {
4086 start: layout.hitbox.left(),
4087 end: layout.gutter_hitbox.right(),
4088 }),
4089 CurrentLineHighlight::Line => Some(Range {
4090 start: layout.position_map.text_hitbox.bounds.left(),
4091 end: layout.position_map.text_hitbox.bounds.right(),
4092 }),
4093 CurrentLineHighlight::All => Some(Range {
4094 start: layout.hitbox.left(),
4095 end: layout.hitbox.right(),
4096 }),
4097 CurrentLineHighlight::None => None,
4098 };
4099 if let Some(range) = highlight_h_range {
4100 let active_line_bg = cx.theme().colors().editor_active_line_background;
4101 let bounds = Bounds {
4102 origin: point(
4103 range.start,
4104 layout.hitbox.origin.y
4105 + (start_row.as_f32() - scroll_top)
4106 * layout.position_map.line_height,
4107 ),
4108 size: size(
4109 range.end - range.start,
4110 layout.position_map.line_height
4111 * (end_row - start_row.0 + 1) as f32,
4112 ),
4113 };
4114 window.paint_quad(fill(bounds, active_line_bg));
4115 }
4116 }
4117 }
4118
4119 let mut paint_highlight = |highlight_row_start: DisplayRow,
4120 highlight_row_end: DisplayRow,
4121 highlight: crate::LineHighlight,
4122 edges| {
4123 let origin = point(
4124 layout.hitbox.origin.x,
4125 layout.hitbox.origin.y
4126 + (highlight_row_start.as_f32() - scroll_top)
4127 * layout.position_map.line_height,
4128 );
4129 let size = size(
4130 layout.hitbox.size.width,
4131 layout.position_map.line_height
4132 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4133 );
4134 let mut quad = fill(Bounds { origin, size }, highlight.background);
4135 if let Some(border_color) = highlight.border {
4136 quad.border_color = border_color;
4137 quad.border_widths = edges
4138 }
4139 window.paint_quad(quad);
4140 };
4141
4142 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4143 None;
4144 for (&new_row, &new_background) in &layout.highlighted_rows {
4145 match &mut current_paint {
4146 Some((current_background, current_range, mut edges)) => {
4147 let current_background = *current_background;
4148 let new_range_started = current_background != new_background
4149 || current_range.end.next_row() != new_row;
4150 if new_range_started {
4151 if current_range.end.next_row() == new_row {
4152 edges.bottom = px(0.);
4153 };
4154 paint_highlight(
4155 current_range.start,
4156 current_range.end,
4157 current_background,
4158 edges,
4159 );
4160 let edges = Edges {
4161 top: if current_range.end.next_row() != new_row {
4162 px(1.)
4163 } else {
4164 px(0.)
4165 },
4166 bottom: px(1.),
4167 ..Default::default()
4168 };
4169 current_paint = Some((new_background, new_row..new_row, edges));
4170 continue;
4171 } else {
4172 current_range.end = current_range.end.next_row();
4173 }
4174 }
4175 None => {
4176 let edges = Edges {
4177 top: px(1.),
4178 bottom: px(1.),
4179 ..Default::default()
4180 };
4181 current_paint = Some((new_background, new_row..new_row, edges))
4182 }
4183 };
4184 }
4185 if let Some((color, range, edges)) = current_paint {
4186 paint_highlight(range.start, range.end, color, edges);
4187 }
4188
4189 let scroll_left =
4190 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4191
4192 for (wrap_position, active) in layout.wrap_guides.iter() {
4193 let x = (layout.position_map.text_hitbox.origin.x
4194 + *wrap_position
4195 + layout.position_map.em_width / 2.)
4196 - scroll_left;
4197
4198 let show_scrollbars = layout
4199 .scrollbars_layout
4200 .as_ref()
4201 .map_or(false, |layout| layout.visible);
4202
4203 if x < layout.position_map.text_hitbox.origin.x
4204 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4205 {
4206 continue;
4207 }
4208
4209 let color = if *active {
4210 cx.theme().colors().editor_active_wrap_guide
4211 } else {
4212 cx.theme().colors().editor_wrap_guide
4213 };
4214 window.paint_quad(fill(
4215 Bounds {
4216 origin: point(x, layout.position_map.text_hitbox.origin.y),
4217 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4218 },
4219 color,
4220 ));
4221 }
4222 }
4223 })
4224 }
4225
4226 fn paint_indent_guides(
4227 &mut self,
4228 layout: &mut EditorLayout,
4229 window: &mut Window,
4230 cx: &mut App,
4231 ) {
4232 let Some(indent_guides) = &layout.indent_guides else {
4233 return;
4234 };
4235
4236 let faded_color = |color: Hsla, alpha: f32| {
4237 let mut faded = color;
4238 faded.a = alpha;
4239 faded
4240 };
4241
4242 for indent_guide in indent_guides {
4243 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4244 let settings = indent_guide.settings;
4245
4246 // TODO fixed for now, expose them through themes later
4247 const INDENT_AWARE_ALPHA: f32 = 0.2;
4248 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4249 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4250 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4251
4252 let line_color = match (settings.coloring, indent_guide.active) {
4253 (IndentGuideColoring::Disabled, _) => None,
4254 (IndentGuideColoring::Fixed, false) => {
4255 Some(cx.theme().colors().editor_indent_guide)
4256 }
4257 (IndentGuideColoring::Fixed, true) => {
4258 Some(cx.theme().colors().editor_indent_guide_active)
4259 }
4260 (IndentGuideColoring::IndentAware, false) => {
4261 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4262 }
4263 (IndentGuideColoring::IndentAware, true) => {
4264 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4265 }
4266 };
4267
4268 let background_color = match (settings.background_coloring, indent_guide.active) {
4269 (IndentGuideBackgroundColoring::Disabled, _) => None,
4270 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4271 indent_accent_colors,
4272 INDENT_AWARE_BACKGROUND_ALPHA,
4273 )),
4274 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4275 indent_accent_colors,
4276 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4277 )),
4278 };
4279
4280 let requested_line_width = if indent_guide.active {
4281 settings.active_line_width
4282 } else {
4283 settings.line_width
4284 }
4285 .clamp(1, 10);
4286 let mut line_indicator_width = 0.;
4287 if let Some(color) = line_color {
4288 window.paint_quad(fill(
4289 Bounds {
4290 origin: indent_guide.origin,
4291 size: size(px(requested_line_width as f32), indent_guide.length),
4292 },
4293 color,
4294 ));
4295 line_indicator_width = requested_line_width as f32;
4296 }
4297
4298 if let Some(color) = background_color {
4299 let width = indent_guide.single_indent_width - px(line_indicator_width);
4300 window.paint_quad(fill(
4301 Bounds {
4302 origin: point(
4303 indent_guide.origin.x + px(line_indicator_width),
4304 indent_guide.origin.y,
4305 ),
4306 size: size(width, indent_guide.length),
4307 },
4308 color,
4309 ));
4310 }
4311 }
4312 }
4313
4314 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4315 let is_singleton = self.editor.read(cx).is_singleton(cx);
4316
4317 let line_height = layout.position_map.line_height;
4318 window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox));
4319
4320 for LineNumberLayout {
4321 shaped_line,
4322 hitbox,
4323 } in layout.line_numbers.values()
4324 {
4325 let Some(hitbox) = hitbox else {
4326 continue;
4327 };
4328
4329 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4330 let color = cx.theme().colors().editor_hover_line_number;
4331
4332 let Some(line) = self
4333 .shape_line_number(shaped_line.text.clone(), color, window)
4334 .log_err()
4335 else {
4336 continue;
4337 };
4338
4339 line.paint(hitbox.origin, line_height, window, cx).log_err()
4340 } else {
4341 shaped_line
4342 .paint(hitbox.origin, line_height, window, cx)
4343 .log_err()
4344 }) else {
4345 continue;
4346 };
4347
4348 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4349 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4350 if is_singleton {
4351 window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox));
4352 } else {
4353 window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox));
4354 }
4355 }
4356 }
4357
4358 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4359 if layout.display_hunks.is_empty() {
4360 return;
4361 }
4362
4363 let line_height = layout.position_map.line_height;
4364 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4365 for (hunk, hitbox) in &layout.display_hunks {
4366 let hunk_to_paint = match hunk {
4367 DisplayDiffHunk::Folded { .. } => {
4368 let hunk_bounds = Self::diff_hunk_bounds(
4369 &layout.position_map.snapshot,
4370 line_height,
4371 layout.gutter_hitbox.bounds,
4372 &hunk,
4373 );
4374 Some((
4375 hunk_bounds,
4376 cx.theme().colors().version_control_modified,
4377 Corners::all(px(0.)),
4378 DiffHunkStatus::modified_none(),
4379 ))
4380 }
4381 DisplayDiffHunk::Unfolded {
4382 status,
4383 display_row_range,
4384 ..
4385 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4386 DiffHunkStatusKind::Added => (
4387 hunk_hitbox.bounds,
4388 cx.theme().colors().version_control_added,
4389 Corners::all(px(0.)),
4390 *status,
4391 ),
4392 DiffHunkStatusKind::Modified => (
4393 hunk_hitbox.bounds,
4394 cx.theme().colors().version_control_modified,
4395 Corners::all(px(0.)),
4396 *status,
4397 ),
4398 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4399 hunk_hitbox.bounds,
4400 cx.theme().colors().version_control_deleted,
4401 Corners::all(px(0.)),
4402 *status,
4403 ),
4404 DiffHunkStatusKind::Deleted => (
4405 Bounds::new(
4406 point(
4407 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4408 hunk_hitbox.origin.y,
4409 ),
4410 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4411 ),
4412 cx.theme().colors().version_control_deleted,
4413 Corners::all(1. * line_height),
4414 *status,
4415 ),
4416 }),
4417 };
4418
4419 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4420 // Flatten the background color with the editor color to prevent
4421 // elements below transparent hunks from showing through
4422 let flattened_background_color = cx
4423 .theme()
4424 .colors()
4425 .editor_background
4426 .blend(background_color);
4427
4428 if !Self::diff_hunk_hollow(status, cx) {
4429 window.paint_quad(quad(
4430 hunk_bounds,
4431 corner_radii,
4432 flattened_background_color,
4433 Edges::default(),
4434 transparent_black(),
4435 BorderStyle::default(),
4436 ));
4437 } else {
4438 let flattened_unstaged_background_color = cx
4439 .theme()
4440 .colors()
4441 .editor_background
4442 .blend(background_color.opacity(0.3));
4443
4444 window.paint_quad(quad(
4445 hunk_bounds,
4446 corner_radii,
4447 flattened_unstaged_background_color,
4448 Edges::all(Pixels(1.0)),
4449 flattened_background_color,
4450 BorderStyle::Solid,
4451 ));
4452 }
4453 }
4454 }
4455 });
4456 }
4457
4458 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4459 (0.275 * line_height).floor()
4460 }
4461
4462 fn diff_hunk_bounds(
4463 snapshot: &EditorSnapshot,
4464 line_height: Pixels,
4465 gutter_bounds: Bounds<Pixels>,
4466 hunk: &DisplayDiffHunk,
4467 ) -> Bounds<Pixels> {
4468 let scroll_position = snapshot.scroll_position();
4469 let scroll_top = scroll_position.y * line_height;
4470 let gutter_strip_width = Self::gutter_strip_width(line_height);
4471
4472 match hunk {
4473 DisplayDiffHunk::Folded { display_row, .. } => {
4474 let start_y = display_row.as_f32() * line_height - scroll_top;
4475 let end_y = start_y + line_height;
4476 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4477 let highlight_size = size(gutter_strip_width, end_y - start_y);
4478 Bounds::new(highlight_origin, highlight_size)
4479 }
4480 DisplayDiffHunk::Unfolded {
4481 display_row_range,
4482 status,
4483 ..
4484 } => {
4485 if status.is_deleted() && display_row_range.is_empty() {
4486 let row = display_row_range.start;
4487
4488 let offset = line_height / 2.;
4489 let start_y = row.as_f32() * line_height - offset - scroll_top;
4490 let end_y = start_y + line_height;
4491
4492 let width = (0.35 * line_height).floor();
4493 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4494 let highlight_size = size(width, end_y - start_y);
4495 Bounds::new(highlight_origin, highlight_size)
4496 } else {
4497 let start_row = display_row_range.start;
4498 let end_row = display_row_range.end;
4499 // If we're in a multibuffer, row range span might include an
4500 // excerpt header, so if we were to draw the marker straight away,
4501 // the hunk might include the rows of that header.
4502 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4503 // Instead, we simply check whether the range we're dealing with includes
4504 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4505 let end_row_in_current_excerpt = snapshot
4506 .blocks_in_range(start_row..end_row)
4507 .find_map(|(start_row, block)| {
4508 if matches!(block, Block::ExcerptBoundary { .. }) {
4509 Some(start_row)
4510 } else {
4511 None
4512 }
4513 })
4514 .unwrap_or(end_row);
4515
4516 let start_y = start_row.as_f32() * line_height - scroll_top;
4517 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4518
4519 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4520 let highlight_size = size(gutter_strip_width, end_y - start_y);
4521 Bounds::new(highlight_origin, highlight_size)
4522 }
4523 }
4524 }
4525 }
4526
4527 fn paint_gutter_indicators(
4528 &self,
4529 layout: &mut EditorLayout,
4530 window: &mut Window,
4531 cx: &mut App,
4532 ) {
4533 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4534 window.with_element_namespace("crease_toggles", |window| {
4535 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4536 crease_toggle.paint(window, cx);
4537 }
4538 });
4539
4540 window.with_element_namespace("expand_toggles", |window| {
4541 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4542 expand_toggle.paint(window, cx);
4543 }
4544 });
4545
4546 for breakpoint in layout.breakpoints.iter_mut() {
4547 breakpoint.paint(window, cx);
4548 }
4549
4550 for test_indicator in layout.test_indicators.iter_mut() {
4551 test_indicator.paint(window, cx);
4552 }
4553
4554 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4555 indicator.paint(window, cx);
4556 }
4557 });
4558 }
4559
4560 fn paint_gutter_highlights(
4561 &self,
4562 layout: &mut EditorLayout,
4563 window: &mut Window,
4564 cx: &mut App,
4565 ) {
4566 for (_, hunk_hitbox) in &layout.display_hunks {
4567 if let Some(hunk_hitbox) = hunk_hitbox {
4568 if !self
4569 .editor
4570 .read(cx)
4571 .buffer()
4572 .read(cx)
4573 .all_diff_hunks_expanded()
4574 {
4575 window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox));
4576 }
4577 }
4578 }
4579
4580 let show_git_gutter = layout
4581 .position_map
4582 .snapshot
4583 .show_git_diff_gutter
4584 .unwrap_or_else(|| {
4585 matches!(
4586 ProjectSettings::get_global(cx).git.git_gutter,
4587 Some(GitGutterSetting::TrackedFiles)
4588 )
4589 });
4590 if show_git_gutter {
4591 Self::paint_gutter_diff_hunks(layout, window, cx)
4592 }
4593
4594 let highlight_width = 0.275 * layout.position_map.line_height;
4595 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4596 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4597 for (range, color) in &layout.highlighted_gutter_ranges {
4598 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4599 layout.visible_display_row_range.start - DisplayRow(1)
4600 } else {
4601 range.start.row()
4602 };
4603 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4604 layout.visible_display_row_range.end + DisplayRow(1)
4605 } else {
4606 range.end.row()
4607 };
4608
4609 let start_y = layout.gutter_hitbox.top()
4610 + start_row.0 as f32 * layout.position_map.line_height
4611 - layout.position_map.scroll_pixel_position.y;
4612 let end_y = layout.gutter_hitbox.top()
4613 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4614 - layout.position_map.scroll_pixel_position.y;
4615 let bounds = Bounds::from_corners(
4616 point(layout.gutter_hitbox.left(), start_y),
4617 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4618 );
4619 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4620 }
4621 });
4622 }
4623
4624 fn paint_blamed_display_rows(
4625 &self,
4626 layout: &mut EditorLayout,
4627 window: &mut Window,
4628 cx: &mut App,
4629 ) {
4630 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4631 return;
4632 };
4633
4634 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4635 for mut blame_element in blamed_display_rows.into_iter() {
4636 blame_element.paint(window, cx);
4637 }
4638 })
4639 }
4640
4641 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4642 window.with_content_mask(
4643 Some(ContentMask {
4644 bounds: layout.position_map.text_hitbox.bounds,
4645 }),
4646 |window| {
4647 let editor = self.editor.read(cx);
4648 if editor.mouse_cursor_hidden {
4649 window.set_cursor_style(CursorStyle::None, None);
4650 } else if editor
4651 .hovered_link_state
4652 .as_ref()
4653 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4654 {
4655 window.set_cursor_style(
4656 CursorStyle::PointingHand,
4657 Some(&layout.position_map.text_hitbox),
4658 );
4659 } else {
4660 window.set_cursor_style(
4661 CursorStyle::IBeam,
4662 Some(&layout.position_map.text_hitbox),
4663 );
4664 };
4665
4666 self.paint_lines_background(layout, window, cx);
4667 let invisible_display_ranges = self.paint_highlights(layout, window);
4668 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4669 self.paint_redactions(layout, window);
4670 self.paint_cursors(layout, window, cx);
4671 self.paint_inline_diagnostics(layout, window, cx);
4672 self.paint_inline_blame(layout, window, cx);
4673 self.paint_diff_hunk_controls(layout, window, cx);
4674 window.with_element_namespace("crease_trailers", |window| {
4675 for trailer in layout.crease_trailers.iter_mut().flatten() {
4676 trailer.element.paint(window, cx);
4677 }
4678 });
4679 },
4680 )
4681 }
4682
4683 fn paint_highlights(
4684 &mut self,
4685 layout: &mut EditorLayout,
4686 window: &mut Window,
4687 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4688 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4689 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4690 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4691 for (range, color) in &layout.highlighted_ranges {
4692 self.paint_highlighted_range(
4693 range.clone(),
4694 *color,
4695 Pixels::ZERO,
4696 line_end_overshoot,
4697 layout,
4698 window,
4699 );
4700 }
4701
4702 let corner_radius = 0.15 * layout.position_map.line_height;
4703
4704 for (player_color, selections) in &layout.selections {
4705 for selection in selections.iter() {
4706 self.paint_highlighted_range(
4707 selection.range.clone(),
4708 player_color.selection,
4709 corner_radius,
4710 corner_radius * 2.,
4711 layout,
4712 window,
4713 );
4714
4715 if selection.is_local && !selection.range.is_empty() {
4716 invisible_display_ranges.push(selection.range.clone());
4717 }
4718 }
4719 }
4720 invisible_display_ranges
4721 })
4722 }
4723
4724 fn paint_lines(
4725 &mut self,
4726 invisible_display_ranges: &[Range<DisplayPoint>],
4727 layout: &mut EditorLayout,
4728 window: &mut Window,
4729 cx: &mut App,
4730 ) {
4731 let whitespace_setting = self
4732 .editor
4733 .read(cx)
4734 .buffer
4735 .read(cx)
4736 .language_settings(cx)
4737 .show_whitespaces;
4738
4739 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4740 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4741 line_with_invisibles.draw(
4742 layout,
4743 row,
4744 layout.content_origin,
4745 whitespace_setting,
4746 invisible_display_ranges,
4747 window,
4748 cx,
4749 )
4750 }
4751
4752 for line_element in &mut layout.line_elements {
4753 line_element.paint(window, cx);
4754 }
4755 }
4756
4757 fn paint_lines_background(
4758 &mut self,
4759 layout: &mut EditorLayout,
4760 window: &mut Window,
4761 cx: &mut App,
4762 ) {
4763 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4764 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4765 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4766 }
4767 }
4768
4769 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4770 if layout.redacted_ranges.is_empty() {
4771 return;
4772 }
4773
4774 let line_end_overshoot = layout.line_end_overshoot();
4775
4776 // A softer than perfect black
4777 let redaction_color = gpui::rgb(0x0e1111);
4778
4779 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4780 for range in layout.redacted_ranges.iter() {
4781 self.paint_highlighted_range(
4782 range.clone(),
4783 redaction_color.into(),
4784 Pixels::ZERO,
4785 line_end_overshoot,
4786 layout,
4787 window,
4788 );
4789 }
4790 });
4791 }
4792
4793 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4794 for cursor in &mut layout.visible_cursors {
4795 cursor.paint(layout.content_origin, window, cx);
4796 }
4797 }
4798
4799 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4800 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
4801 return;
4802 };
4803
4804 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
4805 let hitbox = &scrollbar_layout.hitbox;
4806 let thumb_bounds = scrollbar_layout.thumb_bounds();
4807
4808 if scrollbars_layout.visible {
4809 let scrollbar_edges = match axis {
4810 ScrollbarAxis::Horizontal => Edges {
4811 top: Pixels::ZERO,
4812 right: Pixels::ZERO,
4813 bottom: Pixels::ZERO,
4814 left: Pixels::ZERO,
4815 },
4816 ScrollbarAxis::Vertical => Edges {
4817 top: Pixels::ZERO,
4818 right: Pixels::ZERO,
4819 bottom: Pixels::ZERO,
4820 left: ScrollbarLayout::BORDER_WIDTH,
4821 },
4822 };
4823
4824 window.paint_layer(hitbox.bounds, |window| {
4825 window.paint_quad(quad(
4826 hitbox.bounds,
4827 Corners::default(),
4828 cx.theme().colors().scrollbar_track_background,
4829 scrollbar_edges,
4830 cx.theme().colors().scrollbar_track_border,
4831 BorderStyle::Solid,
4832 ));
4833
4834 if axis == ScrollbarAxis::Vertical {
4835 let fast_markers =
4836 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4837 // Refresh slow scrollbar markers in the background. Below, we
4838 // paint whatever markers have already been computed.
4839 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4840
4841 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4842 for marker in markers.iter().chain(&fast_markers) {
4843 let mut marker = marker.clone();
4844 marker.bounds.origin += hitbox.origin;
4845 window.paint_quad(marker);
4846 }
4847 }
4848
4849 window.paint_quad(quad(
4850 thumb_bounds,
4851 Corners::default(),
4852 cx.theme().colors().scrollbar_thumb_background,
4853 scrollbar_edges,
4854 cx.theme().colors().scrollbar_thumb_border,
4855 BorderStyle::Solid,
4856 ));
4857 })
4858 }
4859 window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox));
4860 }
4861
4862 window.on_mouse_event({
4863 let editor = self.editor.clone();
4864 let scrollbars_layout = scrollbars_layout.clone();
4865
4866 let mut mouse_position = window.mouse_position();
4867 move |event: &MouseMoveEvent, phase, window, cx| {
4868 if phase == DispatchPhase::Capture {
4869 return;
4870 }
4871
4872 editor.update(cx, |editor, cx| {
4873 if let Some((scrollbar_layout, axis)) = event
4874 .pressed_button
4875 .filter(|button| *button == MouseButton::Left)
4876 .and(editor.scroll_manager.dragging_scrollbar_axis())
4877 .and_then(|axis| {
4878 scrollbars_layout
4879 .iter_scrollbars()
4880 .find(|(_, a)| *a == axis)
4881 })
4882 {
4883 let ScrollbarLayout {
4884 hitbox,
4885 text_unit_size,
4886 ..
4887 } = scrollbar_layout;
4888
4889 let old_position = mouse_position.along(axis);
4890 let new_position = event.position.along(axis);
4891 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
4892 .contains(&old_position)
4893 {
4894 let position = editor.scroll_position(cx).apply_along(axis, |p| {
4895 (p + (new_position - old_position) / *text_unit_size).max(0.)
4896 });
4897 editor.set_scroll_position(position, window, cx);
4898 }
4899 cx.stop_propagation();
4900 } else {
4901 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4902 }
4903
4904 if scrollbars_layout.get_hovered_axis(window).is_some() {
4905 editor.scroll_manager.show_scrollbars(window, cx);
4906 }
4907
4908 mouse_position = event.position;
4909 })
4910 }
4911 });
4912
4913 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
4914 window.on_mouse_event({
4915 let editor = self.editor.clone();
4916 move |_: &MouseUpEvent, phase, _, cx| {
4917 if phase == DispatchPhase::Capture {
4918 return;
4919 }
4920
4921 editor.update(cx, |editor, cx| {
4922 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4923 cx.stop_propagation();
4924 });
4925 }
4926 });
4927 } else {
4928 window.on_mouse_event({
4929 let editor = self.editor.clone();
4930 let scrollbars_layout = scrollbars_layout.clone();
4931
4932 move |event: &MouseDownEvent, phase, window, cx| {
4933 if phase == DispatchPhase::Capture {
4934 return;
4935 }
4936 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
4937 else {
4938 return;
4939 };
4940
4941 let ScrollbarLayout {
4942 hitbox,
4943 visible_range,
4944 text_unit_size,
4945 ..
4946 } = scrollbar_layout;
4947
4948 let thumb_bounds = scrollbar_layout.thumb_bounds();
4949
4950 editor.update(cx, |editor, cx| {
4951 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
4952
4953 let event_position = event.position.along(axis);
4954
4955 if event_position < thumb_bounds.origin.along(axis)
4956 || thumb_bounds.bottom_right().along(axis) < event_position
4957 {
4958 let center_position = ((event_position - hitbox.origin.along(axis))
4959 / *text_unit_size)
4960 .round() as u32;
4961 let start_position = center_position.saturating_sub(
4962 (visible_range.end - visible_range.start) as u32 / 2,
4963 );
4964
4965 let position = editor
4966 .scroll_position(cx)
4967 .apply_along(axis, |_| start_position as f32);
4968
4969 editor.set_scroll_position(position, window, cx);
4970 } else {
4971 editor.scroll_manager.show_scrollbars(window, cx);
4972 }
4973
4974 cx.stop_propagation();
4975 });
4976 }
4977 });
4978 }
4979 }
4980
4981 fn collect_fast_scrollbar_markers(
4982 &self,
4983 layout: &EditorLayout,
4984 scrollbar_layout: &ScrollbarLayout,
4985 cx: &mut App,
4986 ) -> Vec<PaintQuad> {
4987 const LIMIT: usize = 100;
4988 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4989 return vec![];
4990 }
4991 let cursor_ranges = layout
4992 .cursors
4993 .iter()
4994 .map(|(point, color)| ColoredRange {
4995 start: point.row(),
4996 end: point.row(),
4997 color: *color,
4998 })
4999 .collect_vec();
5000 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5001 }
5002
5003 fn refresh_slow_scrollbar_markers(
5004 &self,
5005 layout: &EditorLayout,
5006 scrollbar_layout: &ScrollbarLayout,
5007 window: &mut Window,
5008 cx: &mut App,
5009 ) {
5010 self.editor.update(cx, |editor, cx| {
5011 if !editor.is_singleton(cx)
5012 || !editor
5013 .scrollbar_marker_state
5014 .should_refresh(scrollbar_layout.hitbox.size)
5015 {
5016 return;
5017 }
5018
5019 let scrollbar_layout = scrollbar_layout.clone();
5020 let background_highlights = editor.background_highlights.clone();
5021 let snapshot = layout.position_map.snapshot.clone();
5022 let theme = cx.theme().clone();
5023 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5024
5025 editor.scrollbar_marker_state.dirty = false;
5026 editor.scrollbar_marker_state.pending_refresh =
5027 Some(cx.spawn_in(window, async move |editor, cx| {
5028 let scrollbar_size = scrollbar_layout.hitbox.size;
5029 let scrollbar_markers = cx
5030 .background_spawn(async move {
5031 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5032 let mut marker_quads = Vec::new();
5033 if scrollbar_settings.git_diff {
5034 let marker_row_ranges =
5035 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5036 let start_display_row =
5037 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5038 .to_display_point(&snapshot.display_snapshot)
5039 .row();
5040 let mut end_display_row =
5041 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5042 .to_display_point(&snapshot.display_snapshot)
5043 .row();
5044 if end_display_row != start_display_row {
5045 end_display_row.0 -= 1;
5046 }
5047 let color = match &hunk.status().kind {
5048 DiffHunkStatusKind::Added => {
5049 theme.colors().version_control_added
5050 }
5051 DiffHunkStatusKind::Modified => {
5052 theme.colors().version_control_modified
5053 }
5054 DiffHunkStatusKind::Deleted => {
5055 theme.colors().version_control_deleted
5056 }
5057 };
5058 ColoredRange {
5059 start: start_display_row,
5060 end: end_display_row,
5061 color,
5062 }
5063 });
5064
5065 marker_quads.extend(
5066 scrollbar_layout
5067 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5068 );
5069 }
5070
5071 for (background_highlight_id, (_, background_ranges)) in
5072 background_highlights.iter()
5073 {
5074 let is_search_highlights = *background_highlight_id
5075 == TypeId::of::<BufferSearchHighlights>();
5076 let is_text_highlights = *background_highlight_id
5077 == TypeId::of::<SelectedTextHighlight>();
5078 let is_symbol_occurrences = *background_highlight_id
5079 == TypeId::of::<DocumentHighlightRead>()
5080 || *background_highlight_id
5081 == TypeId::of::<DocumentHighlightWrite>();
5082 if (is_search_highlights && scrollbar_settings.search_results)
5083 || (is_text_highlights && scrollbar_settings.selected_text)
5084 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5085 {
5086 let mut color = theme.status().info;
5087 if is_symbol_occurrences {
5088 color.fade_out(0.5);
5089 }
5090 let marker_row_ranges = background_ranges.iter().map(|range| {
5091 let display_start = range
5092 .start
5093 .to_display_point(&snapshot.display_snapshot);
5094 let display_end =
5095 range.end.to_display_point(&snapshot.display_snapshot);
5096 ColoredRange {
5097 start: display_start.row(),
5098 end: display_end.row(),
5099 color,
5100 }
5101 });
5102 marker_quads.extend(
5103 scrollbar_layout
5104 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5105 );
5106 }
5107 }
5108
5109 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5110 let diagnostics = snapshot
5111 .buffer_snapshot
5112 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5113 // Don't show diagnostics the user doesn't care about
5114 .filter(|diagnostic| {
5115 match (
5116 scrollbar_settings.diagnostics,
5117 diagnostic.diagnostic.severity,
5118 ) {
5119 (ScrollbarDiagnostics::All, _) => true,
5120 (
5121 ScrollbarDiagnostics::Error,
5122 DiagnosticSeverity::ERROR,
5123 ) => true,
5124 (
5125 ScrollbarDiagnostics::Warning,
5126 DiagnosticSeverity::ERROR
5127 | DiagnosticSeverity::WARNING,
5128 ) => true,
5129 (
5130 ScrollbarDiagnostics::Information,
5131 DiagnosticSeverity::ERROR
5132 | DiagnosticSeverity::WARNING
5133 | DiagnosticSeverity::INFORMATION,
5134 ) => true,
5135 (_, _) => false,
5136 }
5137 })
5138 // We want to sort by severity, in order to paint the most severe diagnostics last.
5139 .sorted_by_key(|diagnostic| {
5140 std::cmp::Reverse(diagnostic.diagnostic.severity)
5141 });
5142
5143 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5144 let start_display = diagnostic
5145 .range
5146 .start
5147 .to_display_point(&snapshot.display_snapshot);
5148 let end_display = diagnostic
5149 .range
5150 .end
5151 .to_display_point(&snapshot.display_snapshot);
5152 let color = match diagnostic.diagnostic.severity {
5153 DiagnosticSeverity::ERROR => theme.status().error,
5154 DiagnosticSeverity::WARNING => theme.status().warning,
5155 DiagnosticSeverity::INFORMATION => theme.status().info,
5156 _ => theme.status().hint,
5157 };
5158 ColoredRange {
5159 start: start_display.row(),
5160 end: end_display.row(),
5161 color,
5162 }
5163 });
5164 marker_quads.extend(
5165 scrollbar_layout
5166 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5167 );
5168 }
5169
5170 Arc::from(marker_quads)
5171 })
5172 .await;
5173
5174 editor.update(cx, |editor, cx| {
5175 editor.scrollbar_marker_state.markers = scrollbar_markers;
5176 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5177 editor.scrollbar_marker_state.pending_refresh = None;
5178 cx.notify();
5179 })?;
5180
5181 Ok(())
5182 }));
5183 });
5184 }
5185
5186 fn paint_highlighted_range(
5187 &self,
5188 range: Range<DisplayPoint>,
5189 color: Hsla,
5190 corner_radius: Pixels,
5191 line_end_overshoot: Pixels,
5192 layout: &EditorLayout,
5193 window: &mut Window,
5194 ) {
5195 let start_row = layout.visible_display_row_range.start;
5196 let end_row = layout.visible_display_row_range.end;
5197 if range.start != range.end {
5198 let row_range = if range.end.column() == 0 {
5199 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5200 } else {
5201 cmp::max(range.start.row(), start_row)
5202 ..cmp::min(range.end.row().next_row(), end_row)
5203 };
5204
5205 let highlighted_range = HighlightedRange {
5206 color,
5207 line_height: layout.position_map.line_height,
5208 corner_radius,
5209 start_y: layout.content_origin.y
5210 + row_range.start.as_f32() * layout.position_map.line_height
5211 - layout.position_map.scroll_pixel_position.y,
5212 lines: row_range
5213 .iter_rows()
5214 .map(|row| {
5215 let line_layout =
5216 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5217 HighlightedRangeLine {
5218 start_x: if row == range.start.row() {
5219 layout.content_origin.x
5220 + line_layout.x_for_index(range.start.column() as usize)
5221 - layout.position_map.scroll_pixel_position.x
5222 } else {
5223 layout.content_origin.x
5224 - layout.position_map.scroll_pixel_position.x
5225 },
5226 end_x: if row == range.end.row() {
5227 layout.content_origin.x
5228 + line_layout.x_for_index(range.end.column() as usize)
5229 - layout.position_map.scroll_pixel_position.x
5230 } else {
5231 layout.content_origin.x + line_layout.width + line_end_overshoot
5232 - layout.position_map.scroll_pixel_position.x
5233 },
5234 }
5235 })
5236 .collect(),
5237 };
5238
5239 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5240 }
5241 }
5242
5243 fn paint_inline_diagnostics(
5244 &mut self,
5245 layout: &mut EditorLayout,
5246 window: &mut Window,
5247 cx: &mut App,
5248 ) {
5249 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5250 inline_diagnostic.1.paint(window, cx);
5251 }
5252 }
5253
5254 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5255 if let Some(mut inline_blame) = layout.inline_blame.take() {
5256 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5257 inline_blame.paint(window, cx);
5258 })
5259 }
5260 }
5261
5262 fn paint_diff_hunk_controls(
5263 &mut self,
5264 layout: &mut EditorLayout,
5265 window: &mut Window,
5266 cx: &mut App,
5267 ) {
5268 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5269 diff_hunk_control.paint(window, cx);
5270 }
5271 }
5272
5273 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5274 for mut block in layout.blocks.drain(..) {
5275 block.element.paint(window, cx);
5276 }
5277 }
5278
5279 fn paint_inline_completion_popover(
5280 &mut self,
5281 layout: &mut EditorLayout,
5282 window: &mut Window,
5283 cx: &mut App,
5284 ) {
5285 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5286 inline_completion_popover.paint(window, cx);
5287 }
5288 }
5289
5290 fn paint_mouse_context_menu(
5291 &mut self,
5292 layout: &mut EditorLayout,
5293 window: &mut Window,
5294 cx: &mut App,
5295 ) {
5296 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5297 mouse_context_menu.paint(window, cx);
5298 }
5299 }
5300
5301 fn paint_scroll_wheel_listener(
5302 &mut self,
5303 layout: &EditorLayout,
5304 window: &mut Window,
5305 cx: &mut App,
5306 ) {
5307 window.on_mouse_event({
5308 let position_map = layout.position_map.clone();
5309 let editor = self.editor.clone();
5310 let hitbox = layout.hitbox.clone();
5311 let mut delta = ScrollDelta::default();
5312
5313 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5314 // accidentally turn off their scrolling.
5315 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5316
5317 move |event: &ScrollWheelEvent, phase, window, cx| {
5318 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5319 delta = delta.coalesce(event.delta);
5320 editor.update(cx, |editor, cx| {
5321 let position_map: &PositionMap = &position_map;
5322
5323 let line_height = position_map.line_height;
5324 let max_glyph_width = position_map.em_width;
5325 let (delta, axis) = match delta {
5326 gpui::ScrollDelta::Pixels(mut pixels) => {
5327 //Trackpad
5328 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5329 (pixels, axis)
5330 }
5331
5332 gpui::ScrollDelta::Lines(lines) => {
5333 //Not trackpad
5334 let pixels =
5335 point(lines.x * max_glyph_width, lines.y * line_height);
5336 (pixels, None)
5337 }
5338 };
5339
5340 let current_scroll_position = position_map.snapshot.scroll_position();
5341 let x = (current_scroll_position.x * max_glyph_width
5342 - (delta.x * scroll_sensitivity))
5343 / max_glyph_width;
5344 let y = (current_scroll_position.y * line_height
5345 - (delta.y * scroll_sensitivity))
5346 / line_height;
5347 let mut scroll_position =
5348 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5349 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5350 if forbid_vertical_scroll {
5351 scroll_position.y = current_scroll_position.y;
5352 }
5353
5354 if scroll_position != current_scroll_position {
5355 editor.scroll(scroll_position, axis, window, cx);
5356 cx.stop_propagation();
5357 } else if y < 0. {
5358 // Due to clamping, we may fail to detect cases of overscroll to the top;
5359 // We want the scroll manager to get an update in such cases and detect the change of direction
5360 // on the next frame.
5361 cx.notify();
5362 }
5363 });
5364 }
5365 }
5366 });
5367 }
5368
5369 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5370 self.paint_scroll_wheel_listener(layout, window, cx);
5371
5372 window.on_mouse_event({
5373 let position_map = layout.position_map.clone();
5374 let editor = self.editor.clone();
5375 let diff_hunk_range =
5376 layout
5377 .display_hunks
5378 .iter()
5379 .find_map(|(hunk, hunk_hitbox)| match hunk {
5380 DisplayDiffHunk::Folded { .. } => None,
5381 DisplayDiffHunk::Unfolded {
5382 multi_buffer_range, ..
5383 } => {
5384 if hunk_hitbox
5385 .as_ref()
5386 .map(|hitbox| hitbox.is_hovered(window))
5387 .unwrap_or(false)
5388 {
5389 Some(multi_buffer_range.clone())
5390 } else {
5391 None
5392 }
5393 }
5394 });
5395 let line_numbers = layout.line_numbers.clone();
5396
5397 move |event: &MouseDownEvent, phase, window, cx| {
5398 if phase == DispatchPhase::Bubble {
5399 match event.button {
5400 MouseButton::Left => editor.update(cx, |editor, cx| {
5401 let pending_mouse_down = editor
5402 .pending_mouse_down
5403 .get_or_insert_with(Default::default)
5404 .clone();
5405
5406 *pending_mouse_down.borrow_mut() = Some(event.clone());
5407
5408 Self::mouse_left_down(
5409 editor,
5410 event,
5411 diff_hunk_range.clone(),
5412 &position_map,
5413 line_numbers.as_ref(),
5414 window,
5415 cx,
5416 );
5417 }),
5418 MouseButton::Right => editor.update(cx, |editor, cx| {
5419 Self::mouse_right_down(editor, event, &position_map, window, cx);
5420 }),
5421 MouseButton::Middle => editor.update(cx, |editor, cx| {
5422 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5423 }),
5424 _ => {}
5425 };
5426 }
5427 }
5428 });
5429
5430 window.on_mouse_event({
5431 let editor = self.editor.clone();
5432 let position_map = layout.position_map.clone();
5433
5434 move |event: &MouseUpEvent, phase, window, cx| {
5435 if phase == DispatchPhase::Bubble {
5436 editor.update(cx, |editor, cx| {
5437 Self::mouse_up(editor, event, &position_map, window, cx)
5438 });
5439 }
5440 }
5441 });
5442
5443 window.on_mouse_event({
5444 let editor = self.editor.clone();
5445 let position_map = layout.position_map.clone();
5446 let mut captured_mouse_down = None;
5447
5448 move |event: &MouseUpEvent, phase, window, cx| match phase {
5449 // Clear the pending mouse down during the capture phase,
5450 // so that it happens even if another event handler stops
5451 // propagation.
5452 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5453 let pending_mouse_down = editor
5454 .pending_mouse_down
5455 .get_or_insert_with(Default::default)
5456 .clone();
5457
5458 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5459 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5460 captured_mouse_down = pending_mouse_down.take();
5461 window.refresh();
5462 }
5463 }),
5464 // Fire click handlers during the bubble phase.
5465 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5466 if let Some(mouse_down) = captured_mouse_down.take() {
5467 let event = ClickEvent {
5468 down: mouse_down,
5469 up: event.clone(),
5470 };
5471 Self::click(editor, &event, &position_map, window, cx);
5472 }
5473 }),
5474 }
5475 });
5476
5477 window.on_mouse_event({
5478 let position_map = layout.position_map.clone();
5479 let editor = self.editor.clone();
5480
5481 move |event: &MouseMoveEvent, phase, window, cx| {
5482 if phase == DispatchPhase::Bubble {
5483 editor.update(cx, |editor, cx| {
5484 if editor.hover_state.focused(window, cx) {
5485 return;
5486 }
5487 if event.pressed_button == Some(MouseButton::Left)
5488 || event.pressed_button == Some(MouseButton::Middle)
5489 {
5490 Self::mouse_dragged(editor, event, &position_map, window, cx)
5491 }
5492
5493 Self::mouse_moved(editor, event, &position_map, window, cx)
5494 });
5495 }
5496 }
5497 });
5498 }
5499
5500 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5501 bounds.top_right().x - self.style.scrollbar_width
5502 }
5503
5504 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5505 let style = &self.style;
5506 let font_size = style.text.font_size.to_pixels(window.rem_size());
5507 let layout = window
5508 .text_system()
5509 .shape_line(
5510 SharedString::from(" ".repeat(column)),
5511 font_size,
5512 &[TextRun {
5513 len: column,
5514 font: style.text.font(),
5515 color: Hsla::default(),
5516 background_color: None,
5517 underline: None,
5518 strikethrough: None,
5519 }],
5520 )
5521 .unwrap();
5522
5523 layout.width
5524 }
5525
5526 fn max_line_number_width(
5527 &self,
5528 snapshot: &EditorSnapshot,
5529 window: &mut Window,
5530 cx: &mut App,
5531 ) -> Pixels {
5532 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5533 self.column_pixels(digit_count as usize, window, cx)
5534 }
5535
5536 fn shape_line_number(
5537 &self,
5538 text: SharedString,
5539 color: Hsla,
5540 window: &mut Window,
5541 ) -> anyhow::Result<ShapedLine> {
5542 let run = TextRun {
5543 len: text.len(),
5544 font: self.style.text.font(),
5545 color,
5546 background_color: None,
5547 underline: None,
5548 strikethrough: None,
5549 };
5550 window.text_system().shape_line(
5551 text,
5552 self.style.text.font_size.to_pixels(window.rem_size()),
5553 &[run],
5554 )
5555 }
5556
5557 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5558 let unstaged = status.has_secondary_hunk();
5559 let unstaged_hollow = ProjectSettings::get_global(cx)
5560 .git
5561 .hunk_style
5562 .map_or(false, |style| {
5563 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5564 });
5565
5566 unstaged == unstaged_hollow
5567 }
5568}
5569
5570fn header_jump_data(
5571 snapshot: &EditorSnapshot,
5572 block_row_start: DisplayRow,
5573 height: u32,
5574 for_excerpt: &ExcerptInfo,
5575) -> JumpData {
5576 let range = &for_excerpt.range;
5577 let buffer = &for_excerpt.buffer;
5578 let jump_anchor = range
5579 .primary
5580 .as_ref()
5581 .map_or(range.context.start, |primary| primary.start);
5582
5583 let excerpt_start = range.context.start;
5584 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5585 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5586 0
5587 } else {
5588 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5589 jump_position.row.saturating_sub(excerpt_start_point.row)
5590 };
5591
5592 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5593 .saturating_sub(
5594 snapshot
5595 .scroll_anchor
5596 .scroll_position(&snapshot.display_snapshot)
5597 .y as u32,
5598 );
5599
5600 JumpData::MultiBufferPoint {
5601 excerpt_id: for_excerpt.id,
5602 anchor: jump_anchor,
5603 position: jump_position,
5604 line_offset_from_top,
5605 }
5606}
5607
5608pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5609
5610impl AcceptEditPredictionBinding {
5611 pub fn keystroke(&self) -> Option<&Keystroke> {
5612 if let Some(binding) = self.0.as_ref() {
5613 match &binding.keystrokes() {
5614 [keystroke] => Some(keystroke),
5615 _ => None,
5616 }
5617 } else {
5618 None
5619 }
5620 }
5621}
5622
5623fn prepaint_gutter_button(
5624 button: IconButton,
5625 row: DisplayRow,
5626 line_height: Pixels,
5627 gutter_dimensions: &GutterDimensions,
5628 scroll_pixel_position: gpui::Point<Pixels>,
5629 gutter_hitbox: &Hitbox,
5630 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5631 window: &mut Window,
5632 cx: &mut App,
5633) -> AnyElement {
5634 let mut button = button.into_any_element();
5635
5636 let available_space = size(
5637 AvailableSpace::MinContent,
5638 AvailableSpace::Definite(line_height),
5639 );
5640 let indicator_size = button.layout_as_root(available_space, window, cx);
5641
5642 let blame_width = gutter_dimensions.git_blame_entries_width;
5643 let gutter_width = display_hunks
5644 .binary_search_by(|(hunk, _)| match hunk {
5645 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5646 DisplayDiffHunk::Unfolded {
5647 display_row_range, ..
5648 } => {
5649 if display_row_range.end <= row {
5650 Ordering::Less
5651 } else if display_row_range.start > row {
5652 Ordering::Greater
5653 } else {
5654 Ordering::Equal
5655 }
5656 }
5657 })
5658 .ok()
5659 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5660 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5661
5662 let mut x = left_offset;
5663 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5664 - indicator_size.width
5665 - left_offset;
5666 x += available_width / 2.;
5667
5668 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5669 y += (line_height - indicator_size.height) / 2.;
5670
5671 button.prepaint_as_root(
5672 gutter_hitbox.origin + point(x, y),
5673 available_space,
5674 window,
5675 cx,
5676 );
5677 button
5678}
5679
5680fn render_inline_blame_entry(
5681 editor: Entity<Editor>,
5682 blame: &gpui::Entity<GitBlame>,
5683 blame_entry: BlameEntry,
5684 style: &EditorStyle,
5685 cx: &mut App,
5686) -> AnyElement {
5687 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5688
5689 let author = blame_entry.author.as_deref().unwrap_or_default();
5690 let summary_enabled = ProjectSettings::get_global(cx)
5691 .git
5692 .show_inline_commit_summary();
5693
5694 let text = match blame_entry.summary.as_ref() {
5695 Some(summary) if summary_enabled => {
5696 format!("{}, {} - {}", author, relative_timestamp, summary)
5697 }
5698 _ => format!("{}, {}", author, relative_timestamp),
5699 };
5700 let blame = blame.clone();
5701 let blame_entry = blame_entry.clone();
5702
5703 h_flex()
5704 .id("inline-blame")
5705 .w_full()
5706 .font_family(style.text.font().family)
5707 .text_color(cx.theme().status().hint)
5708 .line_height(style.text.line_height)
5709 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5710 .child(text)
5711 .gap_2()
5712 .hoverable_tooltip(move |window, cx| {
5713 let details = blame.read(cx).details_for_entry(&blame_entry);
5714 let tooltip =
5715 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5716 editor.update(cx, |editor, _| {
5717 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5718 });
5719 tooltip.into()
5720 })
5721 .into_any()
5722}
5723
5724fn render_blame_entry(
5725 ix: usize,
5726 blame: &gpui::Entity<GitBlame>,
5727 blame_entry: BlameEntry,
5728 style: &EditorStyle,
5729 last_used_color: &mut Option<(PlayerColor, Oid)>,
5730 editor: Entity<Editor>,
5731 cx: &mut App,
5732) -> AnyElement {
5733 let mut sha_color = cx
5734 .theme()
5735 .players()
5736 .color_for_participant(blame_entry.sha.into());
5737 // If the last color we used is the same as the one we get for this line, but
5738 // the commit SHAs are different, then we try again to get a different color.
5739 match *last_used_color {
5740 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5741 let index: u32 = blame_entry.sha.into();
5742 sha_color = cx.theme().players().color_for_participant(index + 1);
5743 }
5744 _ => {}
5745 };
5746 last_used_color.replace((sha_color, blame_entry.sha));
5747
5748 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5749
5750 let short_commit_id = blame_entry.sha.display_short();
5751
5752 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5753 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5754 let details = blame.read(cx).details_for_entry(&blame_entry);
5755
5756 h_flex()
5757 .w_full()
5758 .justify_between()
5759 .font_family(style.text.font().family)
5760 .line_height(style.text.line_height)
5761 .id(("blame", ix))
5762 .text_color(cx.theme().status().hint)
5763 .pr_2()
5764 .gap_2()
5765 .child(
5766 h_flex()
5767 .items_center()
5768 .gap_2()
5769 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5770 .child(name),
5771 )
5772 .child(relative_timestamp)
5773 .on_mouse_down(MouseButton::Right, {
5774 let blame_entry = blame_entry.clone();
5775 let details = details.clone();
5776 move |event, window, cx| {
5777 deploy_blame_entry_context_menu(
5778 &blame_entry,
5779 details.as_ref(),
5780 editor.clone(),
5781 event.position,
5782 window,
5783 cx,
5784 );
5785 }
5786 })
5787 .hover(|style| style.bg(cx.theme().colors().element_hover))
5788 .when_some(
5789 details
5790 .as_ref()
5791 .and_then(|details| details.permalink.clone()),
5792 |this, url| {
5793 this.cursor_pointer().on_click(move |_, _, cx| {
5794 cx.stop_propagation();
5795 cx.open_url(url.as_str())
5796 })
5797 },
5798 )
5799 .hoverable_tooltip(move |window, cx| {
5800 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5801 .into()
5802 })
5803 .into_any()
5804}
5805
5806fn deploy_blame_entry_context_menu(
5807 blame_entry: &BlameEntry,
5808 details: Option<&ParsedCommitMessage>,
5809 editor: Entity<Editor>,
5810 position: gpui::Point<Pixels>,
5811 window: &mut Window,
5812 cx: &mut App,
5813) {
5814 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5815 let sha = format!("{}", blame_entry.sha);
5816 menu.on_blur_subscription(Subscription::new(|| {}))
5817 .entry("Copy commit SHA", None, move |_, cx| {
5818 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5819 })
5820 .when_some(
5821 details.and_then(|details| details.permalink.clone()),
5822 |this, url| {
5823 this.entry("Open permalink", None, move |_, cx| {
5824 cx.open_url(url.as_str())
5825 })
5826 },
5827 )
5828 });
5829
5830 editor.update(cx, move |editor, cx| {
5831 editor.mouse_context_menu = Some(MouseContextMenu::new(
5832 MenuPosition::PinnedToScreen(position),
5833 context_menu,
5834 window,
5835 cx,
5836 ));
5837 cx.notify();
5838 });
5839}
5840
5841#[derive(Debug)]
5842pub(crate) struct LineWithInvisibles {
5843 fragments: SmallVec<[LineFragment; 1]>,
5844 invisibles: Vec<Invisible>,
5845 len: usize,
5846 pub(crate) width: Pixels,
5847 font_size: Pixels,
5848}
5849
5850#[allow(clippy::large_enum_variant)]
5851enum LineFragment {
5852 Text(ShapedLine),
5853 Element {
5854 element: Option<AnyElement>,
5855 size: Size<Pixels>,
5856 len: usize,
5857 },
5858}
5859
5860impl fmt::Debug for LineFragment {
5861 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5862 match self {
5863 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5864 LineFragment::Element { size, len, .. } => f
5865 .debug_struct("Element")
5866 .field("size", size)
5867 .field("len", len)
5868 .finish(),
5869 }
5870 }
5871}
5872
5873impl LineWithInvisibles {
5874 fn from_chunks<'a>(
5875 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5876 editor_style: &EditorStyle,
5877 max_line_len: usize,
5878 max_line_count: usize,
5879 editor_mode: EditorMode,
5880 text_width: Pixels,
5881 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5882 window: &mut Window,
5883 cx: &mut App,
5884 ) -> Vec<Self> {
5885 let text_style = &editor_style.text;
5886 let mut layouts = Vec::with_capacity(max_line_count);
5887 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5888 let mut line = String::new();
5889 let mut invisibles = Vec::new();
5890 let mut width = Pixels::ZERO;
5891 let mut len = 0;
5892 let mut styles = Vec::new();
5893 let mut non_whitespace_added = false;
5894 let mut row = 0;
5895 let mut line_exceeded_max_len = false;
5896 let font_size = text_style.font_size.to_pixels(window.rem_size());
5897
5898 let ellipsis = SharedString::from("⋯");
5899
5900 for highlighted_chunk in chunks.chain([HighlightedChunk {
5901 text: "\n",
5902 style: None,
5903 is_tab: false,
5904 replacement: None,
5905 }]) {
5906 if let Some(replacement) = highlighted_chunk.replacement {
5907 if !line.is_empty() {
5908 let shaped_line = window
5909 .text_system()
5910 .shape_line(line.clone().into(), font_size, &styles)
5911 .unwrap();
5912 width += shaped_line.width;
5913 len += shaped_line.len;
5914 fragments.push(LineFragment::Text(shaped_line));
5915 line.clear();
5916 styles.clear();
5917 }
5918
5919 match replacement {
5920 ChunkReplacement::Renderer(renderer) => {
5921 let available_width = if renderer.constrain_width {
5922 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5923 ellipsis.clone()
5924 } else {
5925 SharedString::from(Arc::from(highlighted_chunk.text))
5926 };
5927 let shaped_line = window
5928 .text_system()
5929 .shape_line(
5930 chunk,
5931 font_size,
5932 &[text_style.to_run(highlighted_chunk.text.len())],
5933 )
5934 .unwrap();
5935 AvailableSpace::Definite(shaped_line.width)
5936 } else {
5937 AvailableSpace::MinContent
5938 };
5939
5940 let mut element = (renderer.render)(&mut ChunkRendererContext {
5941 context: cx,
5942 window,
5943 max_width: text_width,
5944 });
5945 let line_height = text_style.line_height_in_pixels(window.rem_size());
5946 let size = element.layout_as_root(
5947 size(available_width, AvailableSpace::Definite(line_height)),
5948 window,
5949 cx,
5950 );
5951
5952 width += size.width;
5953 len += highlighted_chunk.text.len();
5954 fragments.push(LineFragment::Element {
5955 element: Some(element),
5956 size,
5957 len: highlighted_chunk.text.len(),
5958 });
5959 }
5960 ChunkReplacement::Str(x) => {
5961 let text_style = if let Some(style) = highlighted_chunk.style {
5962 Cow::Owned(text_style.clone().highlight(style))
5963 } else {
5964 Cow::Borrowed(text_style)
5965 };
5966
5967 let run = TextRun {
5968 len: x.len(),
5969 font: text_style.font(),
5970 color: text_style.color,
5971 background_color: text_style.background_color,
5972 underline: text_style.underline,
5973 strikethrough: text_style.strikethrough,
5974 };
5975 let line_layout = window
5976 .text_system()
5977 .shape_line(x, font_size, &[run])
5978 .unwrap()
5979 .with_len(highlighted_chunk.text.len());
5980
5981 width += line_layout.width;
5982 len += highlighted_chunk.text.len();
5983 fragments.push(LineFragment::Text(line_layout))
5984 }
5985 }
5986 } else {
5987 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5988 if ix > 0 {
5989 let shaped_line = window
5990 .text_system()
5991 .shape_line(line.clone().into(), font_size, &styles)
5992 .unwrap();
5993 width += shaped_line.width;
5994 len += shaped_line.len;
5995 fragments.push(LineFragment::Text(shaped_line));
5996 layouts.push(Self {
5997 width: mem::take(&mut width),
5998 len: mem::take(&mut len),
5999 fragments: mem::take(&mut fragments),
6000 invisibles: std::mem::take(&mut invisibles),
6001 font_size,
6002 });
6003
6004 line.clear();
6005 styles.clear();
6006 row += 1;
6007 line_exceeded_max_len = false;
6008 non_whitespace_added = false;
6009 if row == max_line_count {
6010 return layouts;
6011 }
6012 }
6013
6014 if !line_chunk.is_empty() && !line_exceeded_max_len {
6015 let text_style = if let Some(style) = highlighted_chunk.style {
6016 Cow::Owned(text_style.clone().highlight(style))
6017 } else {
6018 Cow::Borrowed(text_style)
6019 };
6020
6021 if line.len() + line_chunk.len() > max_line_len {
6022 let mut chunk_len = max_line_len - line.len();
6023 while !line_chunk.is_char_boundary(chunk_len) {
6024 chunk_len -= 1;
6025 }
6026 line_chunk = &line_chunk[..chunk_len];
6027 line_exceeded_max_len = true;
6028 }
6029
6030 styles.push(TextRun {
6031 len: line_chunk.len(),
6032 font: text_style.font(),
6033 color: text_style.color,
6034 background_color: text_style.background_color,
6035 underline: text_style.underline,
6036 strikethrough: text_style.strikethrough,
6037 });
6038
6039 if editor_mode == EditorMode::Full {
6040 // Line wrap pads its contents with fake whitespaces,
6041 // avoid printing them
6042 let is_soft_wrapped = is_row_soft_wrapped(row);
6043 if highlighted_chunk.is_tab {
6044 if non_whitespace_added || !is_soft_wrapped {
6045 invisibles.push(Invisible::Tab {
6046 line_start_offset: line.len(),
6047 line_end_offset: line.len() + line_chunk.len(),
6048 });
6049 }
6050 } else {
6051 invisibles.extend(line_chunk.char_indices().filter_map(
6052 |(index, c)| {
6053 let is_whitespace = c.is_whitespace();
6054 non_whitespace_added |= !is_whitespace;
6055 if is_whitespace
6056 && (non_whitespace_added || !is_soft_wrapped)
6057 {
6058 Some(Invisible::Whitespace {
6059 line_offset: line.len() + index,
6060 })
6061 } else {
6062 None
6063 }
6064 },
6065 ))
6066 }
6067 }
6068
6069 line.push_str(line_chunk);
6070 }
6071 }
6072 }
6073 }
6074
6075 layouts
6076 }
6077
6078 fn prepaint(
6079 &mut self,
6080 line_height: Pixels,
6081 scroll_pixel_position: gpui::Point<Pixels>,
6082 row: DisplayRow,
6083 content_origin: gpui::Point<Pixels>,
6084 line_elements: &mut SmallVec<[AnyElement; 1]>,
6085 window: &mut Window,
6086 cx: &mut App,
6087 ) {
6088 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6089 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6090 for fragment in &mut self.fragments {
6091 match fragment {
6092 LineFragment::Text(line) => {
6093 fragment_origin.x += line.width;
6094 }
6095 LineFragment::Element { element, size, .. } => {
6096 let mut element = element
6097 .take()
6098 .expect("you can't prepaint LineWithInvisibles twice");
6099
6100 // Center the element vertically within the line.
6101 let mut element_origin = fragment_origin;
6102 element_origin.y += (line_height - size.height) / 2.;
6103 element.prepaint_at(element_origin, window, cx);
6104 line_elements.push(element);
6105
6106 fragment_origin.x += size.width;
6107 }
6108 }
6109 }
6110 }
6111
6112 fn draw(
6113 &self,
6114 layout: &EditorLayout,
6115 row: DisplayRow,
6116 content_origin: gpui::Point<Pixels>,
6117 whitespace_setting: ShowWhitespaceSetting,
6118 selection_ranges: &[Range<DisplayPoint>],
6119 window: &mut Window,
6120 cx: &mut App,
6121 ) {
6122 let line_height = layout.position_map.line_height;
6123 let line_y = line_height
6124 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6125
6126 let mut fragment_origin =
6127 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6128
6129 for fragment in &self.fragments {
6130 match fragment {
6131 LineFragment::Text(line) => {
6132 line.paint(fragment_origin, line_height, window, cx)
6133 .log_err();
6134 fragment_origin.x += line.width;
6135 }
6136 LineFragment::Element { size, .. } => {
6137 fragment_origin.x += size.width;
6138 }
6139 }
6140 }
6141
6142 self.draw_invisibles(
6143 selection_ranges,
6144 layout,
6145 content_origin,
6146 line_y,
6147 row,
6148 line_height,
6149 whitespace_setting,
6150 window,
6151 cx,
6152 );
6153 }
6154
6155 fn draw_background(
6156 &self,
6157 layout: &EditorLayout,
6158 row: DisplayRow,
6159 content_origin: gpui::Point<Pixels>,
6160 window: &mut Window,
6161 cx: &mut App,
6162 ) {
6163 let line_height = layout.position_map.line_height;
6164 let line_y = line_height
6165 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6166
6167 let mut fragment_origin =
6168 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6169
6170 for fragment in &self.fragments {
6171 match fragment {
6172 LineFragment::Text(line) => {
6173 line.paint_background(fragment_origin, line_height, window, cx)
6174 .log_err();
6175 fragment_origin.x += line.width;
6176 }
6177 LineFragment::Element { size, .. } => {
6178 fragment_origin.x += size.width;
6179 }
6180 }
6181 }
6182 }
6183
6184 fn draw_invisibles(
6185 &self,
6186 selection_ranges: &[Range<DisplayPoint>],
6187 layout: &EditorLayout,
6188 content_origin: gpui::Point<Pixels>,
6189 line_y: Pixels,
6190 row: DisplayRow,
6191 line_height: Pixels,
6192 whitespace_setting: ShowWhitespaceSetting,
6193 window: &mut Window,
6194 cx: &mut App,
6195 ) {
6196 let extract_whitespace_info = |invisible: &Invisible| {
6197 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6198 Invisible::Tab {
6199 line_start_offset,
6200 line_end_offset,
6201 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6202 Invisible::Whitespace { line_offset } => {
6203 (*line_offset, line_offset + 1, &layout.space_invisible)
6204 }
6205 };
6206
6207 let x_offset = self.x_for_index(token_offset);
6208 let invisible_offset =
6209 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6210 let origin = content_origin
6211 + gpui::point(
6212 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6213 line_y,
6214 );
6215
6216 (
6217 [token_offset, token_end_offset],
6218 Box::new(move |window: &mut Window, cx: &mut App| {
6219 invisible_symbol
6220 .paint(origin, line_height, window, cx)
6221 .log_err();
6222 }),
6223 )
6224 };
6225
6226 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6227 match whitespace_setting {
6228 ShowWhitespaceSetting::None => (),
6229 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6230 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6231 let invisible_point = DisplayPoint::new(row, start as u32);
6232 if !selection_ranges
6233 .iter()
6234 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6235 {
6236 return;
6237 }
6238
6239 paint(window, cx);
6240 }),
6241
6242 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6243 // - It is a tab
6244 // - It is adjacent to an edge (start or end)
6245 // - It is adjacent to a whitespace (left or right)
6246 ShowWhitespaceSetting::Boundary => {
6247 // 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
6248 // the above cases.
6249 // Note: We zip in the original `invisibles` to check for tab equality
6250 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6251 for (([start, end], paint), invisible) in
6252 invisible_iter.zip_eq(self.invisibles.iter())
6253 {
6254 let should_render = match (&last_seen, invisible) {
6255 (_, Invisible::Tab { .. }) => true,
6256 (Some((_, last_end, _)), _) => *last_end == start,
6257 _ => false,
6258 };
6259
6260 if should_render || start == 0 || end == self.len {
6261 paint(window, cx);
6262
6263 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6264 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6265 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6266 // Note that we need to make sure that the last one is actually adjacent
6267 if !should_render_last && last_end == start {
6268 paint_last(window, cx);
6269 }
6270 }
6271 }
6272
6273 // Manually render anything within a selection
6274 let invisible_point = DisplayPoint::new(row, start as u32);
6275 if selection_ranges.iter().any(|region| {
6276 region.start <= invisible_point && invisible_point < region.end
6277 }) {
6278 paint(window, cx);
6279 }
6280
6281 last_seen = Some((should_render, end, paint));
6282 }
6283 }
6284 }
6285 }
6286
6287 pub fn x_for_index(&self, index: usize) -> Pixels {
6288 let mut fragment_start_x = Pixels::ZERO;
6289 let mut fragment_start_index = 0;
6290
6291 for fragment in &self.fragments {
6292 match fragment {
6293 LineFragment::Text(shaped_line) => {
6294 let fragment_end_index = fragment_start_index + shaped_line.len;
6295 if index < fragment_end_index {
6296 return fragment_start_x
6297 + shaped_line.x_for_index(index - fragment_start_index);
6298 }
6299 fragment_start_x += shaped_line.width;
6300 fragment_start_index = fragment_end_index;
6301 }
6302 LineFragment::Element { len, size, .. } => {
6303 let fragment_end_index = fragment_start_index + len;
6304 if index < fragment_end_index {
6305 return fragment_start_x;
6306 }
6307 fragment_start_x += size.width;
6308 fragment_start_index = fragment_end_index;
6309 }
6310 }
6311 }
6312
6313 fragment_start_x
6314 }
6315
6316 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6317 let mut fragment_start_x = Pixels::ZERO;
6318 let mut fragment_start_index = 0;
6319
6320 for fragment in &self.fragments {
6321 match fragment {
6322 LineFragment::Text(shaped_line) => {
6323 let fragment_end_x = fragment_start_x + shaped_line.width;
6324 if x < fragment_end_x {
6325 return Some(
6326 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6327 );
6328 }
6329 fragment_start_x = fragment_end_x;
6330 fragment_start_index += shaped_line.len;
6331 }
6332 LineFragment::Element { len, size, .. } => {
6333 let fragment_end_x = fragment_start_x + size.width;
6334 if x < fragment_end_x {
6335 return Some(fragment_start_index);
6336 }
6337 fragment_start_index += len;
6338 fragment_start_x = fragment_end_x;
6339 }
6340 }
6341 }
6342
6343 None
6344 }
6345
6346 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6347 let mut fragment_start_index = 0;
6348
6349 for fragment in &self.fragments {
6350 match fragment {
6351 LineFragment::Text(shaped_line) => {
6352 let fragment_end_index = fragment_start_index + shaped_line.len;
6353 if index < fragment_end_index {
6354 return shaped_line.font_id_for_index(index - fragment_start_index);
6355 }
6356 fragment_start_index = fragment_end_index;
6357 }
6358 LineFragment::Element { len, .. } => {
6359 let fragment_end_index = fragment_start_index + len;
6360 if index < fragment_end_index {
6361 return None;
6362 }
6363 fragment_start_index = fragment_end_index;
6364 }
6365 }
6366 }
6367
6368 None
6369 }
6370}
6371
6372#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6373enum Invisible {
6374 /// A tab character
6375 ///
6376 /// A tab character is internally represented by spaces (configured by the user's tab width)
6377 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6378 /// adjacency checks.
6379 Tab {
6380 line_start_offset: usize,
6381 line_end_offset: usize,
6382 },
6383 Whitespace {
6384 line_offset: usize,
6385 },
6386}
6387
6388impl EditorElement {
6389 /// Returns the rem size to use when rendering the [`EditorElement`].
6390 ///
6391 /// This allows UI elements to scale based on the `buffer_font_size`.
6392 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6393 match self.editor.read(cx).mode {
6394 EditorMode::Full => {
6395 let buffer_font_size = self.style.text.font_size;
6396 match buffer_font_size {
6397 AbsoluteLength::Pixels(pixels) => {
6398 let rem_size_scale = {
6399 // Our default UI font size is 14px on a 16px base scale.
6400 // This means the default UI font size is 0.875rems.
6401 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6402
6403 // We then determine the delta between a single rem and the default font
6404 // size scale.
6405 let default_font_size_delta = 1. - default_font_size_scale;
6406
6407 // Finally, we add this delta to 1rem to get the scale factor that
6408 // should be used to scale up the UI.
6409 1. + default_font_size_delta
6410 };
6411
6412 Some(pixels * rem_size_scale)
6413 }
6414 AbsoluteLength::Rems(rems) => {
6415 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6416 }
6417 }
6418 }
6419 // We currently use single-line and auto-height editors in UI contexts,
6420 // so we don't want to scale everything with the buffer font size, as it
6421 // ends up looking off.
6422 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6423 }
6424 }
6425}
6426
6427impl Element for EditorElement {
6428 type RequestLayoutState = ();
6429 type PrepaintState = EditorLayout;
6430
6431 fn id(&self) -> Option<ElementId> {
6432 None
6433 }
6434
6435 fn request_layout(
6436 &mut self,
6437 _: Option<&GlobalElementId>,
6438 window: &mut Window,
6439 cx: &mut App,
6440 ) -> (gpui::LayoutId, ()) {
6441 let rem_size = self.rem_size(cx);
6442 window.with_rem_size(rem_size, |window| {
6443 self.editor.update(cx, |editor, cx| {
6444 editor.set_style(self.style.clone(), window, cx);
6445
6446 let layout_id = match editor.mode {
6447 EditorMode::SingleLine { auto_width } => {
6448 let rem_size = window.rem_size();
6449
6450 let height = self.style.text.line_height_in_pixels(rem_size);
6451 if auto_width {
6452 let editor_handle = cx.entity().clone();
6453 let style = self.style.clone();
6454 window.request_measured_layout(
6455 Style::default(),
6456 move |_, _, window, cx| {
6457 let editor_snapshot = editor_handle
6458 .update(cx, |editor, cx| editor.snapshot(window, cx));
6459 let line = Self::layout_lines(
6460 DisplayRow(0)..DisplayRow(1),
6461 &editor_snapshot,
6462 &style,
6463 px(f32::MAX),
6464 |_| false, // Single lines never soft wrap
6465 window,
6466 cx,
6467 )
6468 .pop()
6469 .unwrap();
6470
6471 let font_id =
6472 window.text_system().resolve_font(&style.text.font());
6473 let font_size =
6474 style.text.font_size.to_pixels(window.rem_size());
6475 let em_width =
6476 window.text_system().em_width(font_id, font_size).unwrap();
6477
6478 size(line.width + em_width, height)
6479 },
6480 )
6481 } else {
6482 let mut style = Style::default();
6483 style.size.height = height.into();
6484 style.size.width = relative(1.).into();
6485 window.request_layout(style, None, cx)
6486 }
6487 }
6488 EditorMode::AutoHeight { max_lines } => {
6489 let editor_handle = cx.entity().clone();
6490 let max_line_number_width =
6491 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6492 window.request_measured_layout(
6493 Style::default(),
6494 move |known_dimensions, available_space, window, cx| {
6495 editor_handle
6496 .update(cx, |editor, cx| {
6497 compute_auto_height_layout(
6498 editor,
6499 max_lines,
6500 max_line_number_width,
6501 known_dimensions,
6502 available_space.width,
6503 window,
6504 cx,
6505 )
6506 })
6507 .unwrap_or_default()
6508 },
6509 )
6510 }
6511 EditorMode::Full => {
6512 let mut style = Style::default();
6513 style.size.width = relative(1.).into();
6514 style.size.height = relative(1.).into();
6515 window.request_layout(style, None, cx)
6516 }
6517 };
6518
6519 (layout_id, ())
6520 })
6521 })
6522 }
6523
6524 fn prepaint(
6525 &mut self,
6526 _: Option<&GlobalElementId>,
6527 bounds: Bounds<Pixels>,
6528 _: &mut Self::RequestLayoutState,
6529 window: &mut Window,
6530 cx: &mut App,
6531 ) -> Self::PrepaintState {
6532 let text_style = TextStyleRefinement {
6533 font_size: Some(self.style.text.font_size),
6534 line_height: Some(self.style.text.line_height),
6535 ..Default::default()
6536 };
6537 let focus_handle = self.editor.focus_handle(cx);
6538 window.set_view_id(self.editor.entity_id());
6539 window.set_focus_handle(&focus_handle, cx);
6540
6541 let rem_size = self.rem_size(cx);
6542 window.with_rem_size(rem_size, |window| {
6543 window.with_text_style(Some(text_style), |window| {
6544 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6545 let mut snapshot = self
6546 .editor
6547 .update(cx, |editor, cx| editor.snapshot(window, cx));
6548 let style = self.style.clone();
6549
6550 let font_id = window.text_system().resolve_font(&style.text.font());
6551 let font_size = style.text.font_size.to_pixels(window.rem_size());
6552 let line_height = style.text.line_height_in_pixels(window.rem_size());
6553 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6554 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6555
6556 let glyph_grid_cell = size(em_width, line_height);
6557
6558 let gutter_dimensions = snapshot
6559 .gutter_dimensions(
6560 font_id,
6561 font_size,
6562 self.max_line_number_width(&snapshot, window, cx),
6563 cx,
6564 )
6565 .unwrap_or_default();
6566 let text_width = bounds.size.width - gutter_dimensions.width;
6567
6568 let editor_width =
6569 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6570
6571 snapshot = self.editor.update(cx, |editor, cx| {
6572 editor.last_bounds = Some(bounds);
6573 editor.gutter_dimensions = gutter_dimensions;
6574 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6575
6576 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6577 snapshot
6578 } else {
6579 let wrap_width = match editor.soft_wrap_mode(cx) {
6580 SoftWrap::GitDiff => None,
6581 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6582 SoftWrap::EditorWidth => Some(editor_width),
6583 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6584 SoftWrap::Bounded(column) => {
6585 Some(editor_width.min(column as f32 * em_advance))
6586 }
6587 };
6588
6589 if editor.set_wrap_width(wrap_width, cx) {
6590 editor.snapshot(window, cx)
6591 } else {
6592 snapshot
6593 }
6594 }
6595 });
6596
6597 let wrap_guides = self
6598 .editor
6599 .read(cx)
6600 .wrap_guides(cx)
6601 .iter()
6602 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6603 .collect::<SmallVec<[_; 2]>>();
6604
6605 let hitbox = window.insert_hitbox(bounds, false);
6606 let gutter_hitbox =
6607 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6608 let text_hitbox = window.insert_hitbox(
6609 Bounds {
6610 origin: gutter_hitbox.top_right(),
6611 size: size(text_width, bounds.size.height),
6612 },
6613 false,
6614 );
6615
6616 // Offset the content_bounds from the text_bounds by the gutter margin (which
6617 // is roughly half a character wide) to make hit testing work more like how we want.
6618 let content_offset = point(gutter_dimensions.margin, Pixels::ZERO);
6619 let content_origin = text_hitbox.origin + content_offset;
6620
6621 let editor_text_bounds =
6622 Bounds::from_corners(content_origin, bounds.bottom_right());
6623
6624 let height_in_lines = editor_text_bounds.size.height / line_height;
6625
6626 let max_row = snapshot.max_point().row().as_f32();
6627
6628 // The max scroll position for the top of the window
6629 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6630 (max_row - height_in_lines + 1.).max(0.)
6631 } else {
6632 let settings = EditorSettings::get_global(cx);
6633 match settings.scroll_beyond_last_line {
6634 ScrollBeyondLastLine::OnePage => max_row,
6635 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6636 ScrollBeyondLastLine::VerticalScrollMargin => {
6637 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6638 .max(0.)
6639 }
6640 }
6641 };
6642
6643 // TODO: Autoscrolling for both axes
6644 let mut autoscroll_request = None;
6645 let mut autoscroll_containing_element = false;
6646 let mut autoscroll_horizontally = false;
6647 self.editor.update(cx, |editor, cx| {
6648 autoscroll_request = editor.autoscroll_request();
6649 autoscroll_containing_element =
6650 autoscroll_request.is_some() || editor.has_pending_selection();
6651 // TODO: Is this horizontal or vertical?!
6652 autoscroll_horizontally = editor.autoscroll_vertically(
6653 bounds,
6654 line_height,
6655 max_scroll_top,
6656 window,
6657 cx,
6658 );
6659 snapshot = editor.snapshot(window, cx);
6660 });
6661
6662 let mut scroll_position = snapshot.scroll_position();
6663 // The scroll position is a fractional point, the whole number of which represents
6664 // the top of the window in terms of display rows.
6665 let start_row = DisplayRow(scroll_position.y as u32);
6666 let max_row = snapshot.max_point().row();
6667 let end_row = cmp::min(
6668 (scroll_position.y + height_in_lines).ceil() as u32,
6669 max_row.next_row().0,
6670 );
6671 let end_row = DisplayRow(end_row);
6672
6673 let row_infos = snapshot
6674 .row_infos(start_row)
6675 .take((start_row..end_row).len())
6676 .collect::<Vec<RowInfo>>();
6677 let is_row_soft_wrapped = |row: usize| {
6678 row_infos
6679 .get(row)
6680 .map_or(true, |info| info.buffer_row.is_none())
6681 };
6682
6683 let start_anchor = if start_row == Default::default() {
6684 Anchor::min()
6685 } else {
6686 snapshot.buffer_snapshot.anchor_before(
6687 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6688 )
6689 };
6690 let end_anchor = if end_row > max_row {
6691 Anchor::max()
6692 } else {
6693 snapshot.buffer_snapshot.anchor_before(
6694 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6695 )
6696 };
6697
6698 let mut highlighted_rows = self
6699 .editor
6700 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6701
6702 let is_light = cx.theme().appearance().is_light();
6703
6704 for (ix, row_info) in row_infos.iter().enumerate() {
6705 let Some(diff_status) = row_info.diff_status else {
6706 continue;
6707 };
6708
6709 let background_color = match diff_status.kind {
6710 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6711 DiffHunkStatusKind::Deleted => {
6712 cx.theme().colors().version_control_deleted
6713 }
6714 DiffHunkStatusKind::Modified => {
6715 debug_panic!("modified diff status for row info");
6716 continue;
6717 }
6718 };
6719
6720 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6721
6722 let hollow_highlight = LineHighlight {
6723 background: (background_color.opacity(if is_light {
6724 0.08
6725 } else {
6726 0.06
6727 }))
6728 .into(),
6729 border: Some(if is_light {
6730 background_color.opacity(0.48)
6731 } else {
6732 background_color.opacity(0.36)
6733 }),
6734 };
6735
6736 let filled_highlight =
6737 solid_background(background_color.opacity(hunk_opacity)).into();
6738
6739 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6740 hollow_highlight
6741 } else {
6742 filled_highlight
6743 };
6744
6745 highlighted_rows
6746 .entry(start_row + DisplayRow(ix as u32))
6747 .or_insert(background);
6748 }
6749
6750 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6751 start_anchor..end_anchor,
6752 &snapshot.display_snapshot,
6753 cx.theme().colors(),
6754 );
6755 let highlighted_gutter_ranges =
6756 self.editor.read(cx).gutter_highlights_in_range(
6757 start_anchor..end_anchor,
6758 &snapshot.display_snapshot,
6759 cx,
6760 );
6761
6762 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6763 start_anchor..end_anchor,
6764 &snapshot.display_snapshot,
6765 cx,
6766 );
6767
6768 let (local_selections, selected_buffer_ids): (
6769 Vec<Selection<Point>>,
6770 Vec<BufferId>,
6771 ) = self.editor.update(cx, |editor, cx| {
6772 let all_selections = editor.selections.all::<Point>(cx);
6773 let selected_buffer_ids = if editor.is_singleton(cx) {
6774 Vec::new()
6775 } else {
6776 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6777
6778 for selection in all_selections {
6779 for buffer_id in snapshot
6780 .buffer_snapshot
6781 .buffer_ids_for_range(selection.range())
6782 {
6783 if selected_buffer_ids.last() != Some(&buffer_id) {
6784 selected_buffer_ids.push(buffer_id);
6785 }
6786 }
6787 }
6788
6789 selected_buffer_ids
6790 };
6791
6792 let mut selections = editor
6793 .selections
6794 .disjoint_in_range(start_anchor..end_anchor, cx);
6795 selections.extend(editor.selections.pending(cx));
6796
6797 (selections, selected_buffer_ids)
6798 });
6799
6800 let (selections, mut active_rows, newest_selection_head) = self
6801 .layout_selections(
6802 start_anchor,
6803 end_anchor,
6804 &local_selections,
6805 &snapshot,
6806 start_row,
6807 end_row,
6808 window,
6809 cx,
6810 );
6811 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6812 editor.active_breakpoints(start_row..end_row, window, cx)
6813 });
6814 if cx.has_flag::<Debugger>() {
6815 for display_row in breakpoint_rows.keys() {
6816 active_rows.entry(*display_row).or_default().breakpoint = true;
6817 }
6818 }
6819
6820 let line_numbers = self.layout_line_numbers(
6821 Some(&gutter_hitbox),
6822 gutter_dimensions,
6823 line_height,
6824 scroll_position,
6825 start_row..end_row,
6826 &row_infos,
6827 &active_rows,
6828 newest_selection_head,
6829 &snapshot,
6830 window,
6831 cx,
6832 );
6833
6834 // We add the gutter breakpoint indicator to breakpoint_rows after painting
6835 // line numbers so we don't paint a line number debug accent color if a user
6836 // has their mouse over that line when a breakpoint isn't there
6837 if cx.has_flag::<Debugger>() {
6838 let gutter_breakpoint_indicator =
6839 self.editor.read(cx).gutter_breakpoint_indicator;
6840 if let Some(gutter_breakpoint_point) = gutter_breakpoint_indicator {
6841 breakpoint_rows
6842 .entry(gutter_breakpoint_point.row())
6843 .or_insert_with(|| {
6844 let position = snapshot.display_point_to_anchor(
6845 gutter_breakpoint_point,
6846 Bias::Left,
6847 );
6848 let breakpoint = Breakpoint::new_standard();
6849
6850 (position, breakpoint)
6851 });
6852 }
6853 }
6854
6855 let mut expand_toggles =
6856 window.with_element_namespace("expand_toggles", |window| {
6857 self.layout_expand_toggles(
6858 &gutter_hitbox,
6859 gutter_dimensions,
6860 em_width,
6861 line_height,
6862 scroll_position,
6863 &row_infos,
6864 window,
6865 cx,
6866 )
6867 });
6868
6869 let mut crease_toggles =
6870 window.with_element_namespace("crease_toggles", |window| {
6871 self.layout_crease_toggles(
6872 start_row..end_row,
6873 &row_infos,
6874 &active_rows,
6875 &snapshot,
6876 window,
6877 cx,
6878 )
6879 });
6880 let crease_trailers =
6881 window.with_element_namespace("crease_trailers", |window| {
6882 self.layout_crease_trailers(
6883 row_infos.iter().copied(),
6884 &snapshot,
6885 window,
6886 cx,
6887 )
6888 });
6889
6890 let display_hunks = self.layout_gutter_diff_hunks(
6891 line_height,
6892 &gutter_hitbox,
6893 start_row..end_row,
6894 &snapshot,
6895 window,
6896 cx,
6897 );
6898
6899 let mut line_layouts = Self::layout_lines(
6900 start_row..end_row,
6901 &snapshot,
6902 &self.style,
6903 editor_width,
6904 is_row_soft_wrapped,
6905 window,
6906 cx,
6907 );
6908
6909 let longest_line_blame_width = self
6910 .editor
6911 .update(cx, |editor, cx| {
6912 if !editor.show_git_blame_inline {
6913 return None;
6914 }
6915 let blame = editor.blame.as_ref()?;
6916 let blame_entry = blame
6917 .update(cx, |blame, cx| {
6918 let row_infos =
6919 snapshot.row_infos(snapshot.longest_row()).next()?;
6920 blame.blame_for_rows(&[row_infos], cx).next()
6921 })
6922 .flatten()?;
6923 let mut element = render_inline_blame_entry(
6924 self.editor.clone(),
6925 blame,
6926 blame_entry,
6927 &style,
6928 cx,
6929 );
6930 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6931 Some(
6932 element
6933 .layout_as_root(AvailableSpace::min_size(), window, cx)
6934 .width
6935 + inline_blame_padding,
6936 )
6937 })
6938 .unwrap_or(Pixels::ZERO);
6939
6940 let longest_line_width = layout_line(
6941 snapshot.longest_row(),
6942 &snapshot,
6943 &style,
6944 editor_width,
6945 is_row_soft_wrapped,
6946 window,
6947 cx,
6948 )
6949 .width;
6950
6951 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
6952 text_hitbox.bounds,
6953 glyph_grid_cell,
6954 size(longest_line_width, max_row.as_f32() * line_height),
6955 longest_line_blame_width,
6956 style.scrollbar_width,
6957 editor_width,
6958 EditorSettings::get_global(cx),
6959 );
6960
6961 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
6962
6963 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6964 snapshot.sticky_header_excerpt(scroll_position.y)
6965 } else {
6966 None
6967 };
6968 let sticky_header_excerpt_id =
6969 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6970
6971 let blocks = window.with_element_namespace("blocks", |window| {
6972 self.render_blocks(
6973 start_row..end_row,
6974 &snapshot,
6975 &hitbox,
6976 &text_hitbox,
6977 editor_width,
6978 &mut scroll_width,
6979 &gutter_dimensions,
6980 em_width,
6981 gutter_dimensions.full_width(),
6982 line_height,
6983 &line_layouts,
6984 &local_selections,
6985 &selected_buffer_ids,
6986 is_row_soft_wrapped,
6987 sticky_header_excerpt_id,
6988 window,
6989 cx,
6990 )
6991 });
6992 let mut blocks = match blocks {
6993 Ok(blocks) => blocks,
6994 Err(resized_blocks) => {
6995 self.editor.update(cx, |editor, cx| {
6996 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6997 });
6998 return self.prepaint(None, bounds, &mut (), window, cx);
6999 }
7000 };
7001
7002 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7003 window.with_element_namespace("blocks", |window| {
7004 self.layout_sticky_buffer_header(
7005 sticky_header_excerpt,
7006 scroll_position.y,
7007 line_height,
7008 &snapshot,
7009 &hitbox,
7010 &selected_buffer_ids,
7011 &blocks,
7012 window,
7013 cx,
7014 )
7015 })
7016 });
7017
7018 let start_buffer_row =
7019 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7020 let end_buffer_row =
7021 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7022
7023 let scroll_max = point(
7024 ((scroll_width - editor_text_bounds.size.width) / em_width).max(0.0),
7025 max_scroll_top,
7026 );
7027
7028 self.editor.update(cx, |editor, cx| {
7029 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7030
7031 let autoscrolled = if autoscroll_horizontally {
7032 editor.autoscroll_horizontally(
7033 start_row,
7034 editor_width - (glyph_grid_cell.width / 2.0)
7035 + style.scrollbar_width,
7036 scroll_width,
7037 em_width,
7038 &line_layouts,
7039 cx,
7040 )
7041 } else {
7042 false
7043 };
7044
7045 if clamped || autoscrolled {
7046 snapshot = editor.snapshot(window, cx);
7047 scroll_position = snapshot.scroll_position();
7048 }
7049 });
7050
7051 let scroll_pixel_position = point(
7052 scroll_position.x * em_width,
7053 scroll_position.y * line_height,
7054 );
7055
7056 let indent_guides = self.layout_indent_guides(
7057 content_origin,
7058 text_hitbox.origin,
7059 start_buffer_row..end_buffer_row,
7060 scroll_pixel_position,
7061 line_height,
7062 &snapshot,
7063 window,
7064 cx,
7065 );
7066
7067 let crease_trailers =
7068 window.with_element_namespace("crease_trailers", |window| {
7069 self.prepaint_crease_trailers(
7070 crease_trailers,
7071 &line_layouts,
7072 line_height,
7073 content_origin,
7074 scroll_pixel_position,
7075 em_width,
7076 window,
7077 cx,
7078 )
7079 });
7080
7081 let (inline_completion_popover, inline_completion_popover_origin) = self
7082 .editor
7083 .update(cx, |editor, cx| {
7084 editor.render_edit_prediction_popover(
7085 &text_hitbox.bounds,
7086 content_origin,
7087 &snapshot,
7088 start_row..end_row,
7089 scroll_position.y,
7090 scroll_position.y + height_in_lines,
7091 &line_layouts,
7092 line_height,
7093 scroll_pixel_position,
7094 newest_selection_head,
7095 editor_width,
7096 &style,
7097 window,
7098 cx,
7099 )
7100 })
7101 .unzip();
7102
7103 let mut inline_diagnostics = self.layout_inline_diagnostics(
7104 &line_layouts,
7105 &crease_trailers,
7106 content_origin,
7107 scroll_pixel_position,
7108 inline_completion_popover_origin,
7109 start_row,
7110 end_row,
7111 line_height,
7112 em_width,
7113 &style,
7114 window,
7115 cx,
7116 );
7117
7118 let mut inline_blame = None;
7119 if let Some(newest_selection_head) = newest_selection_head {
7120 let display_row = newest_selection_head.row();
7121 if (start_row..end_row).contains(&display_row) {
7122 let line_ix = display_row.minus(start_row) as usize;
7123 let row_info = &row_infos[line_ix];
7124 let line_layout = &line_layouts[line_ix];
7125 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7126 inline_blame = self.layout_inline_blame(
7127 display_row,
7128 row_info,
7129 line_layout,
7130 crease_trailer_layout,
7131 em_width,
7132 content_origin,
7133 scroll_pixel_position,
7134 line_height,
7135 window,
7136 cx,
7137 );
7138 if inline_blame.is_some() {
7139 // Blame overrides inline diagnostics
7140 inline_diagnostics.remove(&display_row);
7141 }
7142 }
7143 }
7144
7145 let blamed_display_rows = self.layout_blame_entries(
7146 &row_infos,
7147 em_width,
7148 scroll_position,
7149 line_height,
7150 &gutter_hitbox,
7151 gutter_dimensions.git_blame_entries_width,
7152 window,
7153 cx,
7154 );
7155
7156 self.editor.update(cx, |editor, cx| {
7157 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7158
7159 let autoscrolled = if autoscroll_horizontally {
7160 editor.autoscroll_horizontally(
7161 start_row,
7162 editor_width - (glyph_grid_cell.width / 2.0)
7163 + style.scrollbar_width,
7164 scroll_width,
7165 em_width,
7166 &line_layouts,
7167 cx,
7168 )
7169 } else {
7170 false
7171 };
7172
7173 if clamped || autoscrolled {
7174 snapshot = editor.snapshot(window, cx);
7175 scroll_position = snapshot.scroll_position();
7176 }
7177 });
7178
7179 let line_elements = self.prepaint_lines(
7180 start_row,
7181 &mut line_layouts,
7182 line_height,
7183 scroll_pixel_position,
7184 content_origin,
7185 window,
7186 cx,
7187 );
7188
7189 let mut block_start_rows = HashSet::default();
7190
7191 window.with_element_namespace("blocks", |window| {
7192 self.layout_blocks(
7193 &mut blocks,
7194 &mut block_start_rows,
7195 &hitbox,
7196 line_height,
7197 scroll_pixel_position,
7198 window,
7199 cx,
7200 );
7201 });
7202
7203 let cursors = self.collect_cursors(&snapshot, cx);
7204 let visible_row_range = start_row..end_row;
7205 let non_visible_cursors = cursors
7206 .iter()
7207 .any(|c| !visible_row_range.contains(&c.0.row()));
7208
7209 let visible_cursors = self.layout_visible_cursors(
7210 &snapshot,
7211 &selections,
7212 &block_start_rows,
7213 start_row..end_row,
7214 &line_layouts,
7215 &text_hitbox,
7216 content_origin,
7217 scroll_position,
7218 scroll_pixel_position,
7219 line_height,
7220 em_width,
7221 em_advance,
7222 autoscroll_containing_element,
7223 window,
7224 cx,
7225 );
7226
7227 let scrollbars_layout = self.layout_scrollbars(
7228 &snapshot,
7229 scrollbar_layout_information,
7230 content_offset,
7231 scroll_position,
7232 non_visible_cursors,
7233 window,
7234 cx,
7235 );
7236
7237 let gutter_settings = EditorSettings::get_global(cx).gutter;
7238
7239 let mut code_actions_indicator = None;
7240 if let Some(newest_selection_head) = newest_selection_head {
7241 let newest_selection_point =
7242 newest_selection_head.to_point(&snapshot.display_snapshot);
7243
7244 if (start_row..end_row).contains(&newest_selection_head.row()) {
7245 self.layout_cursor_popovers(
7246 line_height,
7247 &text_hitbox,
7248 content_origin,
7249 start_row,
7250 scroll_pixel_position,
7251 &line_layouts,
7252 newest_selection_head,
7253 newest_selection_point,
7254 &style,
7255 window,
7256 cx,
7257 );
7258
7259 let show_code_actions = snapshot
7260 .show_code_actions
7261 .unwrap_or(gutter_settings.code_actions);
7262 if show_code_actions {
7263 let newest_selection_point =
7264 newest_selection_head.to_point(&snapshot.display_snapshot);
7265 if !snapshot
7266 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7267 {
7268 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7269 MultiBufferRow(newest_selection_point.row),
7270 );
7271 if let Some((buffer, range)) = buffer {
7272 let buffer_id = buffer.remote_id();
7273 let row = range.start.row;
7274 let has_test_indicator = self
7275 .editor
7276 .read(cx)
7277 .tasks
7278 .contains_key(&(buffer_id, row));
7279
7280 let has_expand_indicator = row_infos
7281 .get(
7282 (newest_selection_head.row() - start_row).0
7283 as usize,
7284 )
7285 .is_some_and(|row_info| row_info.expand_info.is_some());
7286
7287 if !has_test_indicator && !has_expand_indicator {
7288 code_actions_indicator = self
7289 .layout_code_actions_indicator(
7290 line_height,
7291 newest_selection_head,
7292 scroll_pixel_position,
7293 &gutter_dimensions,
7294 &gutter_hitbox,
7295 &mut breakpoint_rows,
7296 &display_hunks,
7297 window,
7298 cx,
7299 );
7300 }
7301 }
7302 }
7303 }
7304 }
7305 }
7306
7307 self.layout_gutter_menu(
7308 line_height,
7309 &text_hitbox,
7310 content_origin,
7311 scroll_pixel_position,
7312 gutter_dimensions.width - gutter_dimensions.left_padding,
7313 window,
7314 cx,
7315 );
7316
7317 let test_indicators = if gutter_settings.runnables {
7318 self.layout_run_indicators(
7319 line_height,
7320 start_row..end_row,
7321 &row_infos,
7322 scroll_pixel_position,
7323 &gutter_dimensions,
7324 &gutter_hitbox,
7325 &display_hunks,
7326 &snapshot,
7327 &mut breakpoint_rows,
7328 window,
7329 cx,
7330 )
7331 } else {
7332 Vec::new()
7333 };
7334
7335 let show_breakpoints = snapshot
7336 .show_breakpoints
7337 .unwrap_or(gutter_settings.breakpoints);
7338 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7339 self.layout_breakpoints(
7340 line_height,
7341 start_row..end_row,
7342 scroll_pixel_position,
7343 &gutter_dimensions,
7344 &gutter_hitbox,
7345 &display_hunks,
7346 &snapshot,
7347 breakpoint_rows,
7348 &row_infos,
7349 window,
7350 cx,
7351 )
7352 } else {
7353 vec![]
7354 };
7355
7356 self.layout_signature_help(
7357 &hitbox,
7358 content_origin,
7359 scroll_pixel_position,
7360 newest_selection_head,
7361 start_row,
7362 &line_layouts,
7363 line_height,
7364 em_width,
7365 window,
7366 cx,
7367 );
7368
7369 if !cx.has_active_drag() {
7370 self.layout_hover_popovers(
7371 &snapshot,
7372 &hitbox,
7373 &text_hitbox,
7374 start_row..end_row,
7375 content_origin,
7376 scroll_pixel_position,
7377 &line_layouts,
7378 line_height,
7379 em_width,
7380 window,
7381 cx,
7382 );
7383 }
7384
7385 let mouse_context_menu = self.layout_mouse_context_menu(
7386 &snapshot,
7387 start_row..end_row,
7388 content_origin,
7389 window,
7390 cx,
7391 );
7392
7393 window.with_element_namespace("crease_toggles", |window| {
7394 self.prepaint_crease_toggles(
7395 &mut crease_toggles,
7396 line_height,
7397 &gutter_dimensions,
7398 gutter_settings,
7399 scroll_pixel_position,
7400 &gutter_hitbox,
7401 window,
7402 cx,
7403 )
7404 });
7405
7406 window.with_element_namespace("expand_toggles", |window| {
7407 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7408 });
7409
7410 let invisible_symbol_font_size = font_size / 2.;
7411 let tab_invisible = window
7412 .text_system()
7413 .shape_line(
7414 "→".into(),
7415 invisible_symbol_font_size,
7416 &[TextRun {
7417 len: "→".len(),
7418 font: self.style.text.font(),
7419 color: cx.theme().colors().editor_invisible,
7420 background_color: None,
7421 underline: None,
7422 strikethrough: None,
7423 }],
7424 )
7425 .unwrap();
7426 let space_invisible = window
7427 .text_system()
7428 .shape_line(
7429 "•".into(),
7430 invisible_symbol_font_size,
7431 &[TextRun {
7432 len: "•".len(),
7433 font: self.style.text.font(),
7434 color: cx.theme().colors().editor_invisible,
7435 background_color: None,
7436 underline: None,
7437 strikethrough: None,
7438 }],
7439 )
7440 .unwrap();
7441
7442 let mode = snapshot.mode;
7443
7444 let position_map = Rc::new(PositionMap {
7445 size: bounds.size,
7446 visible_row_range,
7447 scroll_pixel_position,
7448 scroll_max,
7449 line_layouts,
7450 line_height,
7451 em_width,
7452 em_advance,
7453 snapshot,
7454 gutter_hitbox: gutter_hitbox.clone(),
7455 text_hitbox: text_hitbox.clone(),
7456 });
7457
7458 self.editor.update(cx, |editor, _| {
7459 editor.last_position_map = Some(position_map.clone())
7460 });
7461
7462 let diff_hunk_controls = self.layout_diff_hunk_controls(
7463 start_row..end_row,
7464 &row_infos,
7465 &text_hitbox,
7466 &position_map,
7467 newest_selection_head,
7468 line_height,
7469 scroll_pixel_position,
7470 &display_hunks,
7471 self.editor.clone(),
7472 window,
7473 cx,
7474 );
7475
7476 EditorLayout {
7477 mode,
7478 position_map,
7479 visible_display_row_range: start_row..end_row,
7480 wrap_guides,
7481 indent_guides,
7482 hitbox,
7483 gutter_hitbox,
7484 display_hunks,
7485 content_origin,
7486 scrollbars_layout,
7487 active_rows,
7488 highlighted_rows,
7489 highlighted_ranges,
7490 highlighted_gutter_ranges,
7491 redacted_ranges,
7492 line_elements,
7493 line_numbers,
7494 blamed_display_rows,
7495 inline_diagnostics,
7496 inline_blame,
7497 blocks,
7498 cursors,
7499 visible_cursors,
7500 selections,
7501 inline_completion_popover,
7502 diff_hunk_controls,
7503 mouse_context_menu,
7504 test_indicators,
7505 breakpoints,
7506 code_actions_indicator,
7507 crease_toggles,
7508 crease_trailers,
7509 tab_invisible,
7510 space_invisible,
7511 sticky_buffer_header,
7512 expand_toggles,
7513 }
7514 })
7515 })
7516 })
7517 }
7518
7519 fn paint(
7520 &mut self,
7521 _: Option<&GlobalElementId>,
7522 bounds: Bounds<gpui::Pixels>,
7523 _: &mut Self::RequestLayoutState,
7524 layout: &mut Self::PrepaintState,
7525 window: &mut Window,
7526 cx: &mut App,
7527 ) {
7528 let focus_handle = self.editor.focus_handle(cx);
7529 let key_context = self
7530 .editor
7531 .update(cx, |editor, cx| editor.key_context(window, cx));
7532
7533 window.set_key_context(key_context);
7534 window.handle_input(
7535 &focus_handle,
7536 ElementInputHandler::new(bounds, self.editor.clone()),
7537 cx,
7538 );
7539 self.register_actions(window, cx);
7540 self.register_key_listeners(window, cx, layout);
7541
7542 let text_style = TextStyleRefinement {
7543 font_size: Some(self.style.text.font_size),
7544 line_height: Some(self.style.text.line_height),
7545 ..Default::default()
7546 };
7547 let rem_size = self.rem_size(cx);
7548 window.with_rem_size(rem_size, |window| {
7549 window.with_text_style(Some(text_style), |window| {
7550 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7551 self.paint_mouse_listeners(layout, window, cx);
7552 self.paint_background(layout, window, cx);
7553 self.paint_indent_guides(layout, window, cx);
7554
7555 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7556 self.paint_blamed_display_rows(layout, window, cx);
7557 self.paint_line_numbers(layout, window, cx);
7558 }
7559
7560 self.paint_text(layout, window, cx);
7561
7562 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7563 self.paint_gutter_highlights(layout, window, cx);
7564 self.paint_gutter_indicators(layout, window, cx);
7565 }
7566
7567 if !layout.blocks.is_empty() {
7568 window.with_element_namespace("blocks", |window| {
7569 self.paint_blocks(layout, window, cx);
7570 });
7571 }
7572
7573 window.with_element_namespace("blocks", |window| {
7574 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7575 sticky_header.paint(window, cx)
7576 }
7577 });
7578
7579 self.paint_scrollbars(layout, window, cx);
7580 self.paint_inline_completion_popover(layout, window, cx);
7581 self.paint_mouse_context_menu(layout, window, cx);
7582 });
7583 })
7584 })
7585 }
7586}
7587
7588pub(super) fn gutter_bounds(
7589 editor_bounds: Bounds<Pixels>,
7590 gutter_dimensions: GutterDimensions,
7591) -> Bounds<Pixels> {
7592 Bounds {
7593 origin: editor_bounds.origin,
7594 size: size(gutter_dimensions.width, editor_bounds.size.height),
7595 }
7596}
7597
7598/// Holds information required for layouting the editor scrollbars.
7599struct ScrollbarLayoutInformation {
7600 /// The bounds of the editor area (excluding the content offset).
7601 editor_bounds: Bounds<Pixels>,
7602 /// The available range to scroll within the document.
7603 scroll_range: Size<Pixels>,
7604 /// The space available for one glyph in the editor.
7605 glyph_grid_cell: Size<Pixels>,
7606}
7607
7608impl ScrollbarLayoutInformation {
7609 pub fn new(
7610 editor_bounds: Bounds<Pixels>,
7611 glyph_grid_cell: Size<Pixels>,
7612 document_size: Size<Pixels>,
7613 longest_line_blame_width: Pixels,
7614 scrollbar_width: Pixels,
7615 editor_width: Pixels,
7616 settings: &EditorSettings,
7617 ) -> Self {
7618 let vertical_overscroll = match settings.scroll_beyond_last_line {
7619 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
7620 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7621 ScrollBeyondLastLine::VerticalScrollMargin => {
7622 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7623 }
7624 };
7625
7626 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7627 glyph_grid_cell.width + scrollbar_width
7628 } else {
7629 px(0.0)
7630 };
7631
7632 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7633
7634 let scroll_range = document_size + overscroll;
7635
7636 ScrollbarLayoutInformation {
7637 editor_bounds,
7638 scroll_range,
7639 glyph_grid_cell,
7640 }
7641 }
7642}
7643
7644impl IntoElement for EditorElement {
7645 type Element = Self;
7646
7647 fn into_element(self) -> Self::Element {
7648 self
7649 }
7650}
7651
7652pub struct EditorLayout {
7653 position_map: Rc<PositionMap>,
7654 hitbox: Hitbox,
7655 gutter_hitbox: Hitbox,
7656 content_origin: gpui::Point<Pixels>,
7657 scrollbars_layout: Option<EditorScrollbars>,
7658 mode: EditorMode,
7659 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7660 indent_guides: Option<Vec<IndentGuideLayout>>,
7661 visible_display_row_range: Range<DisplayRow>,
7662 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7663 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7664 line_elements: SmallVec<[AnyElement; 1]>,
7665 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7666 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7667 blamed_display_rows: Option<Vec<AnyElement>>,
7668 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7669 inline_blame: Option<AnyElement>,
7670 blocks: Vec<BlockLayout>,
7671 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7672 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7673 redacted_ranges: Vec<Range<DisplayPoint>>,
7674 cursors: Vec<(DisplayPoint, Hsla)>,
7675 visible_cursors: Vec<CursorLayout>,
7676 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7677 code_actions_indicator: Option<AnyElement>,
7678 test_indicators: Vec<AnyElement>,
7679 breakpoints: Vec<AnyElement>,
7680 crease_toggles: Vec<Option<AnyElement>>,
7681 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7682 diff_hunk_controls: Vec<AnyElement>,
7683 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7684 inline_completion_popover: Option<AnyElement>,
7685 mouse_context_menu: Option<AnyElement>,
7686 tab_invisible: ShapedLine,
7687 space_invisible: ShapedLine,
7688 sticky_buffer_header: Option<AnyElement>,
7689}
7690
7691impl EditorLayout {
7692 fn line_end_overshoot(&self) -> Pixels {
7693 0.15 * self.position_map.line_height
7694 }
7695}
7696
7697struct LineNumberLayout {
7698 shaped_line: ShapedLine,
7699 hitbox: Option<Hitbox>,
7700}
7701
7702struct ColoredRange<T> {
7703 start: T,
7704 end: T,
7705 color: Hsla,
7706}
7707
7708impl Along for ScrollbarAxes {
7709 type Unit = bool;
7710
7711 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7712 match axis {
7713 ScrollbarAxis::Horizontal => self.horizontal,
7714 ScrollbarAxis::Vertical => self.vertical,
7715 }
7716 }
7717
7718 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
7719 match axis {
7720 ScrollbarAxis::Horizontal => ScrollbarAxes {
7721 horizontal: f(self.horizontal),
7722 vertical: self.vertical,
7723 },
7724 ScrollbarAxis::Vertical => ScrollbarAxes {
7725 horizontal: self.horizontal,
7726 vertical: f(self.vertical),
7727 },
7728 }
7729 }
7730}
7731
7732#[derive(Clone)]
7733struct EditorScrollbars {
7734 pub vertical: Option<ScrollbarLayout>,
7735 pub horizontal: Option<ScrollbarLayout>,
7736 pub visible: bool,
7737}
7738
7739impl EditorScrollbars {
7740 pub fn from_scrollbar_axes(
7741 settings_visibility: ScrollbarAxes,
7742 layout_information: &ScrollbarLayoutInformation,
7743 content_offset: gpui::Point<Pixels>,
7744 scroll_position: gpui::Point<f32>,
7745 scrollbar_width: Pixels,
7746 show_scrollbars: bool,
7747 window: &mut Window,
7748 ) -> Self {
7749 let ScrollbarLayoutInformation {
7750 editor_bounds,
7751 scroll_range,
7752 glyph_grid_cell,
7753 } = layout_information;
7754
7755 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
7756 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
7757 Corner::BottomLeft,
7758 editor_bounds.bottom_left(),
7759 size(
7760 if settings_visibility.vertical {
7761 editor_bounds.size.width - scrollbar_width
7762 } else {
7763 editor_bounds.size.width
7764 },
7765 scrollbar_width,
7766 ),
7767 ),
7768 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
7769 Corner::TopRight,
7770 editor_bounds.top_right(),
7771 size(scrollbar_width, editor_bounds.size.height),
7772 ),
7773 };
7774
7775 let mut create_scrollbar_layout = |axis| {
7776 settings_visibility
7777 .along(axis)
7778 .then(|| {
7779 (
7780 editor_bounds.size.along(axis) - content_offset.along(axis),
7781 scroll_range.along(axis),
7782 )
7783 })
7784 .filter(|(editor_content_size, scroll_range)| {
7785 // The scrollbar should only be rendered if the content does
7786 // not entirely fit into the editor
7787 // However, this only applies to the horizontal scrollbar, as information about the
7788 // vertical scrollbar layout is always needed for scrollbar diagnostics.
7789 axis != ScrollbarAxis::Horizontal || editor_content_size < scroll_range
7790 })
7791 .map(|(editor_content_size, scroll_range)| {
7792 ScrollbarLayout::new(
7793 window.insert_hitbox(scrollbar_bounds_for(axis), false),
7794 editor_content_size,
7795 scroll_range,
7796 glyph_grid_cell.along(axis),
7797 content_offset.along(axis),
7798 scroll_position.along(axis),
7799 axis,
7800 )
7801 })
7802 };
7803
7804 Self {
7805 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
7806 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
7807 visible: show_scrollbars,
7808 }
7809 }
7810
7811 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
7812 [
7813 (&self.vertical, ScrollbarAxis::Vertical),
7814 (&self.horizontal, ScrollbarAxis::Horizontal),
7815 ]
7816 .into_iter()
7817 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
7818 }
7819
7820 /// Returns the currently hovered scrollbar axis, if any.
7821 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
7822 self.iter_scrollbars()
7823 .find(|s| s.0.hitbox.is_hovered(window))
7824 }
7825}
7826
7827#[derive(Clone)]
7828struct ScrollbarLayout {
7829 hitbox: Hitbox,
7830 visible_range: Range<f32>,
7831 text_unit_size: Pixels,
7832 content_offset: Pixels,
7833 thumb_size: Pixels,
7834 axis: ScrollbarAxis,
7835}
7836
7837impl ScrollbarLayout {
7838 const BORDER_WIDTH: Pixels = px(1.0);
7839 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7840 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7841 const MIN_THUMB_SIZE: Pixels = px(25.0);
7842
7843 fn new(
7844 scrollbar_track_hitbox: Hitbox,
7845 editor_content_size: Pixels,
7846 scroll_range: Pixels,
7847 glyph_space: Pixels,
7848 content_offset: Pixels,
7849 scroll_position: f32,
7850 axis: ScrollbarAxis,
7851 ) -> Self {
7852 let track_bounds = scrollbar_track_hitbox.bounds;
7853 // The length of the track available to the scrollbar thumb. We deliberately
7854 // exclude the content size here so that the thumb aligns with the content.
7855 let track_length = track_bounds.size.along(axis) - content_offset;
7856
7857 let text_units_per_page = editor_content_size / glyph_space;
7858 let visible_range = scroll_position..scroll_position + text_units_per_page;
7859 let total_text_units = scroll_range / glyph_space;
7860
7861 let thumb_percentage = text_units_per_page / total_text_units;
7862 let thumb_size = (track_length * thumb_percentage)
7863 .max(ScrollbarLayout::MIN_THUMB_SIZE)
7864 .min(track_length);
7865 let text_unit_size =
7866 (track_length - thumb_size) / (total_text_units - text_units_per_page).max(0.);
7867
7868 ScrollbarLayout {
7869 hitbox: scrollbar_track_hitbox,
7870 visible_range,
7871 text_unit_size,
7872 content_offset,
7873 thumb_size,
7874 axis,
7875 }
7876 }
7877
7878 fn thumb_bounds(&self) -> Bounds<Pixels> {
7879 let scrollbar_track = &self.hitbox.bounds;
7880 Bounds::new(
7881 scrollbar_track
7882 .origin
7883 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
7884 scrollbar_track
7885 .size
7886 .apply_along(self.axis, |_| self.thumb_size),
7887 )
7888 }
7889
7890 fn thumb_origin(&self, origin: Pixels) -> Pixels {
7891 origin + self.content_offset + self.visible_range.start * self.text_unit_size
7892 }
7893
7894 fn marker_quads_for_ranges(
7895 &self,
7896 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7897 column: Option<usize>,
7898 ) -> Vec<PaintQuad> {
7899 struct MinMax {
7900 min: Pixels,
7901 max: Pixels,
7902 }
7903 let (x_range, height_limit) = if let Some(column) = column {
7904 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7905 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7906 let end = start + column_width;
7907 (
7908 Range { start, end },
7909 MinMax {
7910 min: Self::MIN_MARKER_HEIGHT,
7911 max: px(f32::MAX),
7912 },
7913 )
7914 } else {
7915 (
7916 Range {
7917 start: Self::BORDER_WIDTH,
7918 end: self.hitbox.size.width,
7919 },
7920 MinMax {
7921 min: Self::LINE_MARKER_HEIGHT,
7922 max: Self::LINE_MARKER_HEIGHT,
7923 },
7924 )
7925 };
7926
7927 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7928 let mut pixel_ranges = row_ranges
7929 .into_iter()
7930 .map(|range| {
7931 let start_y = row_to_y(range.start);
7932 let end_y = row_to_y(range.end)
7933 + self
7934 .text_unit_size
7935 .max(height_limit.min)
7936 .min(height_limit.max);
7937 ColoredRange {
7938 start: start_y,
7939 end: end_y,
7940 color: range.color,
7941 }
7942 })
7943 .peekable();
7944
7945 let mut quads = Vec::new();
7946 while let Some(mut pixel_range) = pixel_ranges.next() {
7947 while let Some(next_pixel_range) = pixel_ranges.peek() {
7948 if pixel_range.end >= next_pixel_range.start - px(1.0)
7949 && pixel_range.color == next_pixel_range.color
7950 {
7951 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7952 pixel_ranges.next();
7953 } else {
7954 break;
7955 }
7956 }
7957
7958 let bounds = Bounds::from_corners(
7959 point(x_range.start, pixel_range.start),
7960 point(x_range.end, pixel_range.end),
7961 );
7962 quads.push(quad(
7963 bounds,
7964 Corners::default(),
7965 pixel_range.color,
7966 Edges::default(),
7967 Hsla::transparent_black(),
7968 BorderStyle::default(),
7969 ));
7970 }
7971
7972 quads
7973 }
7974}
7975
7976struct CreaseTrailerLayout {
7977 element: AnyElement,
7978 bounds: Bounds<Pixels>,
7979}
7980
7981pub(crate) struct PositionMap {
7982 pub size: Size<Pixels>,
7983 pub line_height: Pixels,
7984 pub scroll_pixel_position: gpui::Point<Pixels>,
7985 pub scroll_max: gpui::Point<f32>,
7986 pub em_width: Pixels,
7987 pub em_advance: Pixels,
7988 pub visible_row_range: Range<DisplayRow>,
7989 pub line_layouts: Vec<LineWithInvisibles>,
7990 pub snapshot: EditorSnapshot,
7991 pub text_hitbox: Hitbox,
7992 pub gutter_hitbox: Hitbox,
7993}
7994
7995#[derive(Debug, Copy, Clone)]
7996pub struct PointForPosition {
7997 pub previous_valid: DisplayPoint,
7998 pub next_valid: DisplayPoint,
7999 pub exact_unclipped: DisplayPoint,
8000 pub column_overshoot_after_line_end: u32,
8001}
8002
8003impl PointForPosition {
8004 pub fn as_valid(&self) -> Option<DisplayPoint> {
8005 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8006 Some(self.previous_valid)
8007 } else {
8008 None
8009 }
8010 }
8011}
8012
8013impl PositionMap {
8014 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8015 let text_bounds = self.text_hitbox.bounds;
8016 let scroll_position = self.snapshot.scroll_position();
8017 let position = position - text_bounds.origin;
8018 let y = position.y.max(px(0.)).min(self.size.height);
8019 let x = position.x + (scroll_position.x * self.em_width);
8020 let row = ((y / self.line_height) + scroll_position.y) as u32;
8021
8022 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8023 .line_layouts
8024 .get(row as usize - scroll_position.y as usize)
8025 {
8026 if let Some(ix) = line.index_for_x(x) {
8027 (ix as u32, px(0.))
8028 } else {
8029 (line.len as u32, px(0.).max(x - line.width))
8030 }
8031 } else {
8032 (0, x)
8033 };
8034
8035 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8036 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8037 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8038
8039 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8040 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8041 PointForPosition {
8042 previous_valid,
8043 next_valid,
8044 exact_unclipped,
8045 column_overshoot_after_line_end,
8046 }
8047 }
8048}
8049
8050struct BlockLayout {
8051 id: BlockId,
8052 row: Option<DisplayRow>,
8053 element: AnyElement,
8054 available_space: Size<AvailableSpace>,
8055 style: BlockStyle,
8056 is_buffer_header: bool,
8057}
8058
8059pub fn layout_line(
8060 row: DisplayRow,
8061 snapshot: &EditorSnapshot,
8062 style: &EditorStyle,
8063 text_width: Pixels,
8064 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8065 window: &mut Window,
8066 cx: &mut App,
8067) -> LineWithInvisibles {
8068 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8069 LineWithInvisibles::from_chunks(
8070 chunks,
8071 &style,
8072 MAX_LINE_LEN,
8073 1,
8074 snapshot.mode,
8075 text_width,
8076 is_row_soft_wrapped,
8077 window,
8078 cx,
8079 )
8080 .pop()
8081 .unwrap()
8082}
8083
8084#[derive(Debug)]
8085pub struct IndentGuideLayout {
8086 origin: gpui::Point<Pixels>,
8087 length: Pixels,
8088 single_indent_width: Pixels,
8089 depth: u32,
8090 active: bool,
8091 settings: IndentGuideSettings,
8092}
8093
8094pub struct CursorLayout {
8095 origin: gpui::Point<Pixels>,
8096 block_width: Pixels,
8097 line_height: Pixels,
8098 color: Hsla,
8099 shape: CursorShape,
8100 block_text: Option<ShapedLine>,
8101 cursor_name: Option<AnyElement>,
8102}
8103
8104#[derive(Debug)]
8105pub struct CursorName {
8106 string: SharedString,
8107 color: Hsla,
8108 is_top_row: bool,
8109}
8110
8111impl CursorLayout {
8112 pub fn new(
8113 origin: gpui::Point<Pixels>,
8114 block_width: Pixels,
8115 line_height: Pixels,
8116 color: Hsla,
8117 shape: CursorShape,
8118 block_text: Option<ShapedLine>,
8119 ) -> CursorLayout {
8120 CursorLayout {
8121 origin,
8122 block_width,
8123 line_height,
8124 color,
8125 shape,
8126 block_text,
8127 cursor_name: None,
8128 }
8129 }
8130
8131 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8132 Bounds {
8133 origin: self.origin + origin,
8134 size: size(self.block_width, self.line_height),
8135 }
8136 }
8137
8138 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8139 match self.shape {
8140 CursorShape::Bar => Bounds {
8141 origin: self.origin + origin,
8142 size: size(px(2.0), self.line_height),
8143 },
8144 CursorShape::Block | CursorShape::Hollow => Bounds {
8145 origin: self.origin + origin,
8146 size: size(self.block_width, self.line_height),
8147 },
8148 CursorShape::Underline => Bounds {
8149 origin: self.origin
8150 + origin
8151 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8152 size: size(self.block_width, px(2.0)),
8153 },
8154 }
8155 }
8156
8157 pub fn layout(
8158 &mut self,
8159 origin: gpui::Point<Pixels>,
8160 cursor_name: Option<CursorName>,
8161 window: &mut Window,
8162 cx: &mut App,
8163 ) {
8164 if let Some(cursor_name) = cursor_name {
8165 let bounds = self.bounds(origin);
8166 let text_size = self.line_height / 1.5;
8167
8168 let name_origin = if cursor_name.is_top_row {
8169 point(bounds.right() - px(1.), bounds.top())
8170 } else {
8171 match self.shape {
8172 CursorShape::Bar => point(
8173 bounds.right() - px(2.),
8174 bounds.top() - text_size / 2. - px(1.),
8175 ),
8176 _ => point(
8177 bounds.right() - px(1.),
8178 bounds.top() - text_size / 2. - px(1.),
8179 ),
8180 }
8181 };
8182 let mut name_element = div()
8183 .bg(self.color)
8184 .text_size(text_size)
8185 .px_0p5()
8186 .line_height(text_size + px(2.))
8187 .text_color(cursor_name.color)
8188 .child(cursor_name.string.clone())
8189 .into_any_element();
8190
8191 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8192
8193 self.cursor_name = Some(name_element);
8194 }
8195 }
8196
8197 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8198 let bounds = self.bounds(origin);
8199
8200 //Draw background or border quad
8201 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8202 outline(bounds, self.color, BorderStyle::Solid)
8203 } else {
8204 fill(bounds, self.color)
8205 };
8206
8207 if let Some(name) = &mut self.cursor_name {
8208 name.paint(window, cx);
8209 }
8210
8211 window.paint_quad(cursor);
8212
8213 if let Some(block_text) = &self.block_text {
8214 block_text
8215 .paint(self.origin + origin, self.line_height, window, cx)
8216 .log_err();
8217 }
8218 }
8219
8220 pub fn shape(&self) -> CursorShape {
8221 self.shape
8222 }
8223}
8224
8225#[derive(Debug)]
8226pub struct HighlightedRange {
8227 pub start_y: Pixels,
8228 pub line_height: Pixels,
8229 pub lines: Vec<HighlightedRangeLine>,
8230 pub color: Hsla,
8231 pub corner_radius: Pixels,
8232}
8233
8234#[derive(Debug)]
8235pub struct HighlightedRangeLine {
8236 pub start_x: Pixels,
8237 pub end_x: Pixels,
8238}
8239
8240impl HighlightedRange {
8241 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8242 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8243 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8244 self.paint_lines(
8245 self.start_y + self.line_height,
8246 &self.lines[1..],
8247 bounds,
8248 window,
8249 );
8250 } else {
8251 self.paint_lines(self.start_y, &self.lines, bounds, window);
8252 }
8253 }
8254
8255 fn paint_lines(
8256 &self,
8257 start_y: Pixels,
8258 lines: &[HighlightedRangeLine],
8259 _bounds: Bounds<Pixels>,
8260 window: &mut Window,
8261 ) {
8262 if lines.is_empty() {
8263 return;
8264 }
8265
8266 let first_line = lines.first().unwrap();
8267 let last_line = lines.last().unwrap();
8268
8269 let first_top_left = point(first_line.start_x, start_y);
8270 let first_top_right = point(first_line.end_x, start_y);
8271
8272 let curve_height = point(Pixels::ZERO, self.corner_radius);
8273 let curve_width = |start_x: Pixels, end_x: Pixels| {
8274 let max = (end_x - start_x) / 2.;
8275 let width = if max < self.corner_radius {
8276 max
8277 } else {
8278 self.corner_radius
8279 };
8280
8281 point(width, Pixels::ZERO)
8282 };
8283
8284 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8285 let mut builder = gpui::PathBuilder::fill();
8286 builder.move_to(first_top_right - top_curve_width);
8287 builder.curve_to(first_top_right + curve_height, first_top_right);
8288
8289 let mut iter = lines.iter().enumerate().peekable();
8290 while let Some((ix, line)) = iter.next() {
8291 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8292
8293 if let Some((_, next_line)) = iter.peek() {
8294 let next_top_right = point(next_line.end_x, bottom_right.y);
8295
8296 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8297 Ordering::Equal => {
8298 builder.line_to(bottom_right);
8299 }
8300 Ordering::Less => {
8301 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8302 builder.line_to(bottom_right - curve_height);
8303 if self.corner_radius > Pixels::ZERO {
8304 builder.curve_to(bottom_right - curve_width, bottom_right);
8305 }
8306 builder.line_to(next_top_right + curve_width);
8307 if self.corner_radius > Pixels::ZERO {
8308 builder.curve_to(next_top_right + curve_height, next_top_right);
8309 }
8310 }
8311 Ordering::Greater => {
8312 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8313 builder.line_to(bottom_right - curve_height);
8314 if self.corner_radius > Pixels::ZERO {
8315 builder.curve_to(bottom_right + curve_width, bottom_right);
8316 }
8317 builder.line_to(next_top_right - curve_width);
8318 if self.corner_radius > Pixels::ZERO {
8319 builder.curve_to(next_top_right + curve_height, next_top_right);
8320 }
8321 }
8322 }
8323 } else {
8324 let curve_width = curve_width(line.start_x, line.end_x);
8325 builder.line_to(bottom_right - curve_height);
8326 if self.corner_radius > Pixels::ZERO {
8327 builder.curve_to(bottom_right - curve_width, bottom_right);
8328 }
8329
8330 let bottom_left = point(line.start_x, bottom_right.y);
8331 builder.line_to(bottom_left + curve_width);
8332 if self.corner_radius > Pixels::ZERO {
8333 builder.curve_to(bottom_left - curve_height, bottom_left);
8334 }
8335 }
8336 }
8337
8338 if first_line.start_x > last_line.start_x {
8339 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8340 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8341 builder.line_to(second_top_left + curve_height);
8342 if self.corner_radius > Pixels::ZERO {
8343 builder.curve_to(second_top_left + curve_width, second_top_left);
8344 }
8345 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8346 builder.line_to(first_bottom_left - curve_width);
8347 if self.corner_radius > Pixels::ZERO {
8348 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8349 }
8350 }
8351
8352 builder.line_to(first_top_left + curve_height);
8353 if self.corner_radius > Pixels::ZERO {
8354 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8355 }
8356 builder.line_to(first_top_right - top_curve_width);
8357
8358 if let Ok(path) = builder.build() {
8359 window.paint_path(path, self.color);
8360 }
8361 }
8362}
8363
8364enum CursorPopoverType {
8365 CodeContextMenu,
8366 EditPrediction,
8367}
8368
8369pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8370 (delta.pow(1.5) / 100.0).into()
8371}
8372
8373fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8374 (delta.pow(1.2) / 300.0).into()
8375}
8376
8377pub fn register_action<T: Action>(
8378 editor: &Entity<Editor>,
8379 window: &mut Window,
8380 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8381) {
8382 let editor = editor.clone();
8383 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8384 let action = action.downcast_ref().unwrap();
8385 if phase == DispatchPhase::Bubble {
8386 editor.update(cx, |editor, cx| {
8387 listener(editor, action, window, cx);
8388 })
8389 }
8390 })
8391}
8392
8393fn compute_auto_height_layout(
8394 editor: &mut Editor,
8395 max_lines: usize,
8396 max_line_number_width: Pixels,
8397 known_dimensions: Size<Option<Pixels>>,
8398 available_width: AvailableSpace,
8399 window: &mut Window,
8400 cx: &mut Context<Editor>,
8401) -> Option<Size<Pixels>> {
8402 let width = known_dimensions.width.or({
8403 if let AvailableSpace::Definite(available_width) = available_width {
8404 Some(available_width)
8405 } else {
8406 None
8407 }
8408 })?;
8409 if let Some(height) = known_dimensions.height {
8410 return Some(size(width, height));
8411 }
8412
8413 let style = editor.style.as_ref().unwrap();
8414 let font_id = window.text_system().resolve_font(&style.text.font());
8415 let font_size = style.text.font_size.to_pixels(window.rem_size());
8416 let line_height = style.text.line_height_in_pixels(window.rem_size());
8417 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8418
8419 let mut snapshot = editor.snapshot(window, cx);
8420 let gutter_dimensions = snapshot
8421 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8422 .unwrap_or_default();
8423
8424 editor.gutter_dimensions = gutter_dimensions;
8425 let text_width = width - gutter_dimensions.width;
8426 let overscroll = size(em_width, px(0.));
8427
8428 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8429 if editor.set_wrap_width(Some(editor_width), cx) {
8430 snapshot = editor.snapshot(window, cx);
8431 }
8432
8433 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8434 let height = scroll_height
8435 .max(line_height)
8436 .min(line_height * max_lines as f32);
8437
8438 Some(size(width, height))
8439}
8440
8441#[cfg(test)]
8442mod tests {
8443 use super::*;
8444 use crate::{
8445 display_map::{BlockPlacement, BlockProperties},
8446 editor_tests::{init_test, update_test_language_settings},
8447 Editor, MultiBuffer,
8448 };
8449 use gpui::{TestAppContext, VisualTestContext};
8450 use language::language_settings;
8451 use log::info;
8452 use std::num::NonZeroU32;
8453 use util::test::sample_text;
8454
8455 #[gpui::test]
8456 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8457 init_test(cx, |_| {});
8458 let window = cx.add_window(|window, cx| {
8459 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8460 Editor::new(EditorMode::Full, buffer, None, window, cx)
8461 });
8462
8463 let editor = window.root(cx).unwrap();
8464 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8465 let line_height = window
8466 .update(cx, |_, window, _| {
8467 style.text.line_height_in_pixels(window.rem_size())
8468 })
8469 .unwrap();
8470 let element = EditorElement::new(&editor, style);
8471 let snapshot = window
8472 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8473 .unwrap();
8474
8475 let layouts = cx
8476 .update_window(*window, |_, window, cx| {
8477 element.layout_line_numbers(
8478 None,
8479 GutterDimensions {
8480 left_padding: Pixels::ZERO,
8481 right_padding: Pixels::ZERO,
8482 width: px(30.0),
8483 margin: Pixels::ZERO,
8484 git_blame_entries_width: None,
8485 },
8486 line_height,
8487 gpui::Point::default(),
8488 DisplayRow(0)..DisplayRow(6),
8489 &(0..6)
8490 .map(|row| RowInfo {
8491 buffer_row: Some(row),
8492 ..Default::default()
8493 })
8494 .collect::<Vec<_>>(),
8495 &BTreeMap::default(),
8496 Some(DisplayPoint::new(DisplayRow(0), 0)),
8497 &snapshot,
8498 window,
8499 cx,
8500 )
8501 })
8502 .unwrap();
8503 assert_eq!(layouts.len(), 6);
8504
8505 let relative_rows = window
8506 .update(cx, |editor, window, cx| {
8507 let snapshot = editor.snapshot(window, cx);
8508 element.calculate_relative_line_numbers(
8509 &snapshot,
8510 &(DisplayRow(0)..DisplayRow(6)),
8511 Some(DisplayRow(3)),
8512 )
8513 })
8514 .unwrap();
8515 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8516 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8517 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8518 // current line has no relative number
8519 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8520 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8521
8522 // works if cursor is before screen
8523 let relative_rows = window
8524 .update(cx, |editor, window, cx| {
8525 let snapshot = editor.snapshot(window, cx);
8526 element.calculate_relative_line_numbers(
8527 &snapshot,
8528 &(DisplayRow(3)..DisplayRow(6)),
8529 Some(DisplayRow(1)),
8530 )
8531 })
8532 .unwrap();
8533 assert_eq!(relative_rows.len(), 3);
8534 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8535 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8536 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8537
8538 // works if cursor is after screen
8539 let relative_rows = window
8540 .update(cx, |editor, window, cx| {
8541 let snapshot = editor.snapshot(window, cx);
8542 element.calculate_relative_line_numbers(
8543 &snapshot,
8544 &(DisplayRow(0)..DisplayRow(3)),
8545 Some(DisplayRow(6)),
8546 )
8547 })
8548 .unwrap();
8549 assert_eq!(relative_rows.len(), 3);
8550 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8551 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8552 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8553 }
8554
8555 #[gpui::test]
8556 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8557 init_test(cx, |_| {});
8558
8559 let window = cx.add_window(|window, cx| {
8560 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8561 Editor::new(EditorMode::Full, buffer, None, window, cx)
8562 });
8563 let cx = &mut VisualTestContext::from_window(*window, cx);
8564 let editor = window.root(cx).unwrap();
8565 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8566
8567 window
8568 .update(cx, |editor, window, cx| {
8569 editor.cursor_shape = CursorShape::Block;
8570 editor.change_selections(None, window, cx, |s| {
8571 s.select_ranges([
8572 Point::new(0, 0)..Point::new(1, 0),
8573 Point::new(3, 2)..Point::new(3, 3),
8574 Point::new(5, 6)..Point::new(6, 0),
8575 ]);
8576 });
8577 })
8578 .unwrap();
8579
8580 let (_, state) = cx.draw(
8581 point(px(500.), px(500.)),
8582 size(px(500.), px(500.)),
8583 |_, _| EditorElement::new(&editor, style),
8584 );
8585
8586 assert_eq!(state.selections.len(), 1);
8587 let local_selections = &state.selections[0].1;
8588 assert_eq!(local_selections.len(), 3);
8589 // moves cursor back one line
8590 assert_eq!(
8591 local_selections[0].head,
8592 DisplayPoint::new(DisplayRow(0), 6)
8593 );
8594 assert_eq!(
8595 local_selections[0].range,
8596 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8597 );
8598
8599 // moves cursor back one column
8600 assert_eq!(
8601 local_selections[1].range,
8602 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8603 );
8604 assert_eq!(
8605 local_selections[1].head,
8606 DisplayPoint::new(DisplayRow(3), 2)
8607 );
8608
8609 // leaves cursor on the max point
8610 assert_eq!(
8611 local_selections[2].range,
8612 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8613 );
8614 assert_eq!(
8615 local_selections[2].head,
8616 DisplayPoint::new(DisplayRow(6), 0)
8617 );
8618
8619 // active lines does not include 1 (even though the range of the selection does)
8620 assert_eq!(
8621 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8622 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8623 );
8624 }
8625
8626 #[gpui::test]
8627 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8628 init_test(cx, |_| {});
8629
8630 let window = cx.add_window(|window, cx| {
8631 let buffer = MultiBuffer::build_simple("", cx);
8632 Editor::new(EditorMode::Full, buffer, None, window, cx)
8633 });
8634 let cx = &mut VisualTestContext::from_window(*window, cx);
8635 let editor = window.root(cx).unwrap();
8636 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8637 window
8638 .update(cx, |editor, window, cx| {
8639 editor.set_placeholder_text("hello", cx);
8640 editor.insert_blocks(
8641 [BlockProperties {
8642 style: BlockStyle::Fixed,
8643 placement: BlockPlacement::Above(Anchor::min()),
8644 height: 3,
8645 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8646 priority: 0,
8647 }],
8648 None,
8649 cx,
8650 );
8651
8652 // Blur the editor so that it displays placeholder text.
8653 window.blur();
8654 })
8655 .unwrap();
8656
8657 let (_, state) = cx.draw(
8658 point(px(500.), px(500.)),
8659 size(px(500.), px(500.)),
8660 |_, _| EditorElement::new(&editor, style),
8661 );
8662 assert_eq!(state.position_map.line_layouts.len(), 4);
8663 assert_eq!(state.line_numbers.len(), 1);
8664 assert_eq!(
8665 state
8666 .line_numbers
8667 .get(&MultiBufferRow(0))
8668 .map(|line_number| line_number.shaped_line.text.as_ref()),
8669 Some("1")
8670 );
8671 }
8672
8673 #[gpui::test]
8674 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8675 const TAB_SIZE: u32 = 4;
8676
8677 let input_text = "\t \t|\t| a b";
8678 let expected_invisibles = vec![
8679 Invisible::Tab {
8680 line_start_offset: 0,
8681 line_end_offset: TAB_SIZE as usize,
8682 },
8683 Invisible::Whitespace {
8684 line_offset: TAB_SIZE as usize,
8685 },
8686 Invisible::Tab {
8687 line_start_offset: TAB_SIZE as usize + 1,
8688 line_end_offset: TAB_SIZE as usize * 2,
8689 },
8690 Invisible::Tab {
8691 line_start_offset: TAB_SIZE as usize * 2 + 1,
8692 line_end_offset: TAB_SIZE as usize * 3,
8693 },
8694 Invisible::Whitespace {
8695 line_offset: TAB_SIZE as usize * 3 + 1,
8696 },
8697 Invisible::Whitespace {
8698 line_offset: TAB_SIZE as usize * 3 + 3,
8699 },
8700 ];
8701 assert_eq!(
8702 expected_invisibles.len(),
8703 input_text
8704 .chars()
8705 .filter(|initial_char| initial_char.is_whitespace())
8706 .count(),
8707 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8708 );
8709
8710 for show_line_numbers in [true, false] {
8711 init_test(cx, |s| {
8712 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8713 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8714 });
8715
8716 let actual_invisibles = collect_invisibles_from_new_editor(
8717 cx,
8718 EditorMode::Full,
8719 input_text,
8720 px(500.0),
8721 show_line_numbers,
8722 );
8723
8724 assert_eq!(expected_invisibles, actual_invisibles);
8725 }
8726 }
8727
8728 #[gpui::test]
8729 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8730 init_test(cx, |s| {
8731 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8732 s.defaults.tab_size = NonZeroU32::new(4);
8733 });
8734
8735 for editor_mode_without_invisibles in [
8736 EditorMode::SingleLine { auto_width: false },
8737 EditorMode::AutoHeight { max_lines: 100 },
8738 ] {
8739 for show_line_numbers in [true, false] {
8740 let invisibles = collect_invisibles_from_new_editor(
8741 cx,
8742 editor_mode_without_invisibles,
8743 "\t\t\t| | a b",
8744 px(500.0),
8745 show_line_numbers,
8746 );
8747 assert!(invisibles.is_empty(),
8748 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8749 }
8750 }
8751 }
8752
8753 #[gpui::test]
8754 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8755 let tab_size = 4;
8756 let input_text = "a\tbcd ".repeat(9);
8757 let repeated_invisibles = [
8758 Invisible::Tab {
8759 line_start_offset: 1,
8760 line_end_offset: tab_size as usize,
8761 },
8762 Invisible::Whitespace {
8763 line_offset: tab_size as usize + 3,
8764 },
8765 Invisible::Whitespace {
8766 line_offset: tab_size as usize + 4,
8767 },
8768 Invisible::Whitespace {
8769 line_offset: tab_size as usize + 5,
8770 },
8771 Invisible::Whitespace {
8772 line_offset: tab_size as usize + 6,
8773 },
8774 Invisible::Whitespace {
8775 line_offset: tab_size as usize + 7,
8776 },
8777 ];
8778 let expected_invisibles = std::iter::once(repeated_invisibles)
8779 .cycle()
8780 .take(9)
8781 .flatten()
8782 .collect::<Vec<_>>();
8783 assert_eq!(
8784 expected_invisibles.len(),
8785 input_text
8786 .chars()
8787 .filter(|initial_char| initial_char.is_whitespace())
8788 .count(),
8789 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8790 );
8791 info!("Expected invisibles: {expected_invisibles:?}");
8792
8793 init_test(cx, |_| {});
8794
8795 // Put the same string with repeating whitespace pattern into editors of various size,
8796 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8797 let resize_step = 10.0;
8798 let mut editor_width = 200.0;
8799 while editor_width <= 1000.0 {
8800 for show_line_numbers in [true, false] {
8801 update_test_language_settings(cx, |s| {
8802 s.defaults.tab_size = NonZeroU32::new(tab_size);
8803 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8804 s.defaults.preferred_line_length = Some(editor_width as u32);
8805 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8806 });
8807
8808 let actual_invisibles = collect_invisibles_from_new_editor(
8809 cx,
8810 EditorMode::Full,
8811 &input_text,
8812 px(editor_width),
8813 show_line_numbers,
8814 );
8815
8816 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8817 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8818 let mut i = 0;
8819 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8820 i = actual_index;
8821 match expected_invisibles.get(i) {
8822 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8823 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8824 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8825 _ => {
8826 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8827 }
8828 },
8829 None => {
8830 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8831 }
8832 }
8833 }
8834 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8835 assert!(
8836 missing_expected_invisibles.is_empty(),
8837 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8838 );
8839
8840 editor_width += resize_step;
8841 }
8842 }
8843 }
8844
8845 fn collect_invisibles_from_new_editor(
8846 cx: &mut TestAppContext,
8847 editor_mode: EditorMode,
8848 input_text: &str,
8849 editor_width: Pixels,
8850 show_line_numbers: bool,
8851 ) -> Vec<Invisible> {
8852 info!(
8853 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8854 editor_width.0
8855 );
8856 let window = cx.add_window(|window, cx| {
8857 let buffer = MultiBuffer::build_simple(input_text, cx);
8858 Editor::new(editor_mode, buffer, None, window, cx)
8859 });
8860 let cx = &mut VisualTestContext::from_window(*window, cx);
8861 let editor = window.root(cx).unwrap();
8862
8863 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8864 window
8865 .update(cx, |editor, _, cx| {
8866 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8867 editor.set_wrap_width(Some(editor_width), cx);
8868 editor.set_show_line_numbers(show_line_numbers, cx);
8869 })
8870 .unwrap();
8871 let (_, state) = cx.draw(
8872 point(px(500.), px(500.)),
8873 size(px(500.), px(500.)),
8874 |_, _| EditorElement::new(&editor, style),
8875 );
8876 state
8877 .position_map
8878 .line_layouts
8879 .iter()
8880 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8881 .cloned()
8882 .collect()
8883 }
8884}
8885
8886fn diff_hunk_controls(
8887 row: u32,
8888 status: &DiffHunkStatus,
8889 hunk_range: Range<Anchor>,
8890 is_created_file: bool,
8891 line_height: Pixels,
8892 editor: &Entity<Editor>,
8893 cx: &mut App,
8894) -> AnyElement {
8895 h_flex()
8896 .h(line_height)
8897 .mr_1()
8898 .gap_1()
8899 .px_0p5()
8900 .pb_1()
8901 .border_x_1()
8902 .border_b_1()
8903 .border_color(cx.theme().colors().border_variant)
8904 .rounded_b_lg()
8905 .bg(cx.theme().colors().editor_background)
8906 .gap_1()
8907 .occlude()
8908 .shadow_md()
8909 .child(if status.has_secondary_hunk() {
8910 Button::new(("stage", row as u64), "Stage")
8911 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8912 .tooltip({
8913 let focus_handle = editor.focus_handle(cx);
8914 move |window, cx| {
8915 Tooltip::for_action_in(
8916 "Stage Hunk",
8917 &::git::ToggleStaged,
8918 &focus_handle,
8919 window,
8920 cx,
8921 )
8922 }
8923 })
8924 .on_click({
8925 let editor = editor.clone();
8926 move |_event, _window, cx| {
8927 editor.update(cx, |editor, cx| {
8928 editor.stage_or_unstage_diff_hunks(
8929 true,
8930 vec![hunk_range.start..hunk_range.start],
8931 cx,
8932 );
8933 });
8934 }
8935 })
8936 } else {
8937 Button::new(("unstage", row as u64), "Unstage")
8938 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8939 .tooltip({
8940 let focus_handle = editor.focus_handle(cx);
8941 move |window, cx| {
8942 Tooltip::for_action_in(
8943 "Unstage Hunk",
8944 &::git::ToggleStaged,
8945 &focus_handle,
8946 window,
8947 cx,
8948 )
8949 }
8950 })
8951 .on_click({
8952 let editor = editor.clone();
8953 move |_event, _window, cx| {
8954 editor.update(cx, |editor, cx| {
8955 editor.stage_or_unstage_diff_hunks(
8956 false,
8957 vec![hunk_range.start..hunk_range.start],
8958 cx,
8959 );
8960 });
8961 }
8962 })
8963 })
8964 .child(
8965 Button::new("restore", "Restore")
8966 .tooltip({
8967 let focus_handle = editor.focus_handle(cx);
8968 move |window, cx| {
8969 Tooltip::for_action_in(
8970 "Restore Hunk",
8971 &::git::Restore,
8972 &focus_handle,
8973 window,
8974 cx,
8975 )
8976 }
8977 })
8978 .on_click({
8979 let editor = editor.clone();
8980 move |_event, window, cx| {
8981 editor.update(cx, |editor, cx| {
8982 let snapshot = editor.snapshot(window, cx);
8983 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8984 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8985 });
8986 }
8987 })
8988 .disabled(is_created_file),
8989 )
8990 .when(
8991 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8992 |el| {
8993 el.child(
8994 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8995 .shape(IconButtonShape::Square)
8996 .icon_size(IconSize::Small)
8997 // .disabled(!has_multiple_hunks)
8998 .tooltip({
8999 let focus_handle = editor.focus_handle(cx);
9000 move |window, cx| {
9001 Tooltip::for_action_in(
9002 "Next Hunk",
9003 &GoToHunk,
9004 &focus_handle,
9005 window,
9006 cx,
9007 )
9008 }
9009 })
9010 .on_click({
9011 let editor = editor.clone();
9012 move |_event, window, cx| {
9013 editor.update(cx, |editor, cx| {
9014 let snapshot = editor.snapshot(window, cx);
9015 let position =
9016 hunk_range.end.to_point(&snapshot.buffer_snapshot);
9017 editor.go_to_hunk_before_or_after_position(
9018 &snapshot,
9019 position,
9020 Direction::Next,
9021 window,
9022 cx,
9023 );
9024 editor.expand_selected_diff_hunks(cx);
9025 });
9026 }
9027 }),
9028 )
9029 .child(
9030 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
9031 .shape(IconButtonShape::Square)
9032 .icon_size(IconSize::Small)
9033 // .disabled(!has_multiple_hunks)
9034 .tooltip({
9035 let focus_handle = editor.focus_handle(cx);
9036 move |window, cx| {
9037 Tooltip::for_action_in(
9038 "Previous Hunk",
9039 &GoToPreviousHunk,
9040 &focus_handle,
9041 window,
9042 cx,
9043 )
9044 }
9045 })
9046 .on_click({
9047 let editor = editor.clone();
9048 move |_event, window, cx| {
9049 editor.update(cx, |editor, cx| {
9050 let snapshot = editor.snapshot(window, cx);
9051 let point =
9052 hunk_range.start.to_point(&snapshot.buffer_snapshot);
9053 editor.go_to_hunk_before_or_after_position(
9054 &snapshot,
9055 point,
9056 Direction::Prev,
9057 window,
9058 cx,
9059 );
9060 editor.expand_selected_diff_hunks(cx);
9061 });
9062 }
9063 }),
9064 )
9065 },
9066 )
9067 .into_any_element()
9068}