1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 inlay_hint_settings,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
18 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
19 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayDiffHunk, DisplayPoint,
20 DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
21 EditorSettings, EditorSnapshot, EditorStyle, FocusedBlock, GoToHunk, GoToPreviousHunk,
22 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlayHintRefreshReason,
23 InlineCompletion, JumpData, LineDown, LineHighlight, LineUp, OpenExcerpts, PageDown, PageUp,
24 Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap,
25 StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR,
26 FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
27 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
28};
29use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
30use client::ParticipantIndex;
31use collections::{BTreeMap, HashMap, HashSet};
32use file_icons::FileIcons;
33use git::{blame::BlameEntry, status::FileStatus, Oid};
34use gpui::{
35 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
36 relative, size, solid_background, transparent_black, Action, AnyElement, App, AvailableSpace,
37 Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle,
38 DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId,
39 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
40 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
41 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
42 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement, Window,
43};
44use inline_completion::Direction;
45use itertools::Itertools;
46use language::{
47 language_settings::{
48 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
49 ShowWhitespaceSetting,
50 },
51 ChunkRendererContext,
52};
53use lsp::DiagnosticSeverity;
54use multi_buffer::{
55 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
56 MultiBufferRow, RowInfo,
57};
58use project::project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings};
59use settings::Settings;
60use smallvec::{smallvec, SmallVec};
61use std::{
62 any::TypeId,
63 borrow::Cow,
64 cmp::{self, Ordering},
65 fmt::{self, Write},
66 iter, mem,
67 ops::{Deref, Range},
68 rc::Rc,
69 sync::Arc,
70};
71use sum_tree::Bias;
72use text::BufferId;
73use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
74use ui::{
75 h_flex, prelude::*, ButtonLike, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
76 POPOVER_Y_PADDING,
77};
78use unicode_segmentation::UnicodeSegmentation;
79use util::{debug_panic, RangeExt, ResultExt};
80use workspace::{item::Item, notifications::NotifyTaskExt};
81
82const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
83const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
84
85struct SelectionLayout {
86 head: DisplayPoint,
87 cursor_shape: CursorShape,
88 is_newest: bool,
89 is_local: bool,
90 range: Range<DisplayPoint>,
91 active_rows: Range<DisplayRow>,
92 user_name: Option<SharedString>,
93}
94
95impl SelectionLayout {
96 fn new<T: ToPoint + ToDisplayPoint + Clone>(
97 selection: Selection<T>,
98 line_mode: bool,
99 cursor_shape: CursorShape,
100 map: &DisplaySnapshot,
101 is_newest: bool,
102 is_local: bool,
103 user_name: Option<SharedString>,
104 ) -> Self {
105 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
106 let display_selection = point_selection.map(|p| p.to_display_point(map));
107 let mut range = display_selection.range();
108 let mut head = display_selection.head();
109 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
110 ..map.next_line_boundary(point_selection.end).1.row();
111
112 // vim visual line mode
113 if line_mode {
114 let point_range = map.expand_to_line(point_selection.range());
115 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
116 }
117
118 // any vim visual mode (including line mode)
119 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
120 && !range.is_empty()
121 && !selection.reversed
122 {
123 if head.column() > 0 {
124 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
125 } else if head.row().0 > 0 && head != map.max_point() {
126 head = map.clip_point(
127 DisplayPoint::new(
128 head.row().previous_row(),
129 map.line_len(head.row().previous_row()),
130 ),
131 Bias::Left,
132 );
133 // updating range.end is a no-op unless you're cursor is
134 // on the newline containing a multi-buffer divider
135 // in which case the clip_point may have moved the head up
136 // an additional row.
137 range.end = DisplayPoint::new(head.row().next_row(), 0);
138 active_rows.end = head.row();
139 }
140 }
141
142 Self {
143 head,
144 cursor_shape,
145 is_newest,
146 is_local,
147 range,
148 active_rows,
149 user_name,
150 }
151 }
152}
153
154pub struct EditorElement {
155 editor: Entity<Editor>,
156 style: EditorStyle,
157}
158
159type DisplayRowDelta = u32;
160
161impl EditorElement {
162 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
163
164 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
165 Self {
166 editor: editor.clone(),
167 style,
168 }
169 }
170
171 fn register_actions(&self, window: &mut Window, cx: &mut App) {
172 let editor = &self.editor;
173 editor.update(cx, |editor, cx| {
174 for action in editor.editor_actions.borrow().values() {
175 (action)(window, cx)
176 }
177 });
178
179 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
180 crate::clangd_ext::apply_related_actions(editor, window, cx);
181 register_action(editor, window, Editor::open_context_menu);
182 register_action(editor, window, Editor::move_left);
183 register_action(editor, window, Editor::move_right);
184 register_action(editor, window, Editor::move_down);
185 register_action(editor, window, Editor::move_down_by_lines);
186 register_action(editor, window, Editor::select_down_by_lines);
187 register_action(editor, window, Editor::move_up);
188 register_action(editor, window, Editor::move_up_by_lines);
189 register_action(editor, window, Editor::select_up_by_lines);
190 register_action(editor, window, Editor::select_page_down);
191 register_action(editor, window, Editor::select_page_up);
192 register_action(editor, window, Editor::cancel);
193 register_action(editor, window, Editor::newline);
194 register_action(editor, window, Editor::newline_above);
195 register_action(editor, window, Editor::newline_below);
196 register_action(editor, window, Editor::backspace);
197 register_action(editor, window, Editor::delete);
198 register_action(editor, window, Editor::tab);
199 register_action(editor, window, Editor::backtab);
200 register_action(editor, window, Editor::indent);
201 register_action(editor, window, Editor::outdent);
202 register_action(editor, window, Editor::autoindent);
203 register_action(editor, window, Editor::delete_line);
204 register_action(editor, window, Editor::join_lines);
205 register_action(editor, window, Editor::sort_lines_case_sensitive);
206 register_action(editor, window, Editor::sort_lines_case_insensitive);
207 register_action(editor, window, Editor::reverse_lines);
208 register_action(editor, window, Editor::shuffle_lines);
209 register_action(editor, window, Editor::convert_to_upper_case);
210 register_action(editor, window, Editor::convert_to_lower_case);
211 register_action(editor, window, Editor::convert_to_title_case);
212 register_action(editor, window, Editor::convert_to_snake_case);
213 register_action(editor, window, Editor::convert_to_kebab_case);
214 register_action(editor, window, Editor::convert_to_upper_camel_case);
215 register_action(editor, window, Editor::convert_to_lower_camel_case);
216 register_action(editor, window, Editor::convert_to_opposite_case);
217 register_action(editor, window, Editor::delete_to_previous_word_start);
218 register_action(editor, window, Editor::delete_to_previous_subword_start);
219 register_action(editor, window, Editor::delete_to_next_word_end);
220 register_action(editor, window, Editor::delete_to_next_subword_end);
221 register_action(editor, window, Editor::delete_to_beginning_of_line);
222 register_action(editor, window, Editor::delete_to_end_of_line);
223 register_action(editor, window, Editor::cut_to_end_of_line);
224 register_action(editor, window, Editor::duplicate_line_up);
225 register_action(editor, window, Editor::duplicate_line_down);
226 register_action(editor, window, Editor::duplicate_selection);
227 register_action(editor, window, Editor::move_line_up);
228 register_action(editor, window, Editor::move_line_down);
229 register_action(editor, window, Editor::transpose);
230 register_action(editor, window, Editor::rewrap);
231 register_action(editor, window, Editor::cut);
232 register_action(editor, window, Editor::kill_ring_cut);
233 register_action(editor, window, Editor::kill_ring_yank);
234 register_action(editor, window, Editor::copy);
235 register_action(editor, window, Editor::paste);
236 register_action(editor, window, Editor::undo);
237 register_action(editor, window, Editor::redo);
238 register_action(editor, window, Editor::move_page_up);
239 register_action(editor, window, Editor::move_page_down);
240 register_action(editor, window, Editor::next_screen);
241 register_action(editor, window, Editor::scroll_cursor_top);
242 register_action(editor, window, Editor::scroll_cursor_center);
243 register_action(editor, window, Editor::scroll_cursor_bottom);
244 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
245 register_action(editor, window, |editor, _: &LineDown, window, cx| {
246 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
247 });
248 register_action(editor, window, |editor, _: &LineUp, window, cx| {
249 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
250 });
251 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
252 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
253 });
254 register_action(
255 editor,
256 window,
257 |editor, HandleInput(text): &HandleInput, window, cx| {
258 if text.is_empty() {
259 return;
260 }
261 editor.handle_input(text, window, cx);
262 },
263 );
264 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
265 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
266 });
267 register_action(editor, window, |editor, _: &PageDown, window, cx| {
268 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
269 });
270 register_action(editor, window, |editor, _: &PageUp, window, cx| {
271 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
272 });
273 register_action(editor, window, Editor::move_to_previous_word_start);
274 register_action(editor, window, Editor::move_to_previous_subword_start);
275 register_action(editor, window, Editor::move_to_next_word_end);
276 register_action(editor, window, Editor::move_to_next_subword_end);
277 register_action(editor, window, Editor::move_to_beginning_of_line);
278 register_action(editor, window, Editor::move_to_end_of_line);
279 register_action(editor, window, Editor::move_to_start_of_paragraph);
280 register_action(editor, window, Editor::move_to_end_of_paragraph);
281 register_action(editor, window, Editor::move_to_beginning);
282 register_action(editor, window, Editor::move_to_end);
283 register_action(editor, window, Editor::move_to_start_of_excerpt);
284 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
285 register_action(editor, window, Editor::move_to_end_of_excerpt);
286 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
287 register_action(editor, window, Editor::select_up);
288 register_action(editor, window, Editor::select_down);
289 register_action(editor, window, Editor::select_left);
290 register_action(editor, window, Editor::select_right);
291 register_action(editor, window, Editor::select_to_previous_word_start);
292 register_action(editor, window, Editor::select_to_previous_subword_start);
293 register_action(editor, window, Editor::select_to_next_word_end);
294 register_action(editor, window, Editor::select_to_next_subword_end);
295 register_action(editor, window, Editor::select_to_beginning_of_line);
296 register_action(editor, window, Editor::select_to_end_of_line);
297 register_action(editor, window, Editor::select_to_start_of_paragraph);
298 register_action(editor, window, Editor::select_to_end_of_paragraph);
299 register_action(editor, window, Editor::select_to_start_of_excerpt);
300 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
301 register_action(editor, window, Editor::select_to_end_of_excerpt);
302 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
303 register_action(editor, window, Editor::select_to_beginning);
304 register_action(editor, window, Editor::select_to_end);
305 register_action(editor, window, Editor::select_all);
306 register_action(editor, window, |editor, action, window, cx| {
307 editor.select_all_matches(action, window, cx).log_err();
308 });
309 register_action(editor, window, Editor::select_line);
310 register_action(editor, window, Editor::split_selection_into_lines);
311 register_action(editor, window, Editor::add_selection_above);
312 register_action(editor, window, Editor::add_selection_below);
313 register_action(editor, window, |editor, action, window, cx| {
314 editor.select_next(action, window, cx).log_err();
315 });
316 register_action(editor, window, |editor, action, window, cx| {
317 editor.select_previous(action, window, cx).log_err();
318 });
319 register_action(editor, window, Editor::toggle_comments);
320 register_action(editor, window, Editor::select_larger_syntax_node);
321 register_action(editor, window, Editor::select_smaller_syntax_node);
322 register_action(editor, window, Editor::select_enclosing_symbol);
323 register_action(editor, window, Editor::move_to_enclosing_bracket);
324 register_action(editor, window, Editor::undo_selection);
325 register_action(editor, window, Editor::redo_selection);
326 if !editor.read(cx).is_singleton(cx) {
327 register_action(editor, window, Editor::expand_excerpts);
328 register_action(editor, window, Editor::expand_excerpts_up);
329 register_action(editor, window, Editor::expand_excerpts_down);
330 }
331 register_action(editor, window, Editor::go_to_diagnostic);
332 register_action(editor, window, Editor::go_to_prev_diagnostic);
333 register_action(editor, window, Editor::go_to_next_hunk);
334 register_action(editor, window, Editor::go_to_prev_hunk);
335 register_action(editor, window, |editor, action, window, cx| {
336 editor
337 .go_to_definition(action, window, cx)
338 .detach_and_log_err(cx);
339 });
340 register_action(editor, window, |editor, action, window, cx| {
341 editor
342 .go_to_definition_split(action, window, cx)
343 .detach_and_log_err(cx);
344 });
345 register_action(editor, window, |editor, action, window, cx| {
346 editor
347 .go_to_declaration(action, window, cx)
348 .detach_and_log_err(cx);
349 });
350 register_action(editor, window, |editor, action, window, cx| {
351 editor
352 .go_to_declaration_split(action, window, cx)
353 .detach_and_log_err(cx);
354 });
355 register_action(editor, window, |editor, action, window, cx| {
356 editor
357 .go_to_implementation(action, window, cx)
358 .detach_and_log_err(cx);
359 });
360 register_action(editor, window, |editor, action, window, cx| {
361 editor
362 .go_to_implementation_split(action, window, cx)
363 .detach_and_log_err(cx);
364 });
365 register_action(editor, window, |editor, action, window, cx| {
366 editor
367 .go_to_type_definition(action, window, cx)
368 .detach_and_log_err(cx);
369 });
370 register_action(editor, window, |editor, action, window, cx| {
371 editor
372 .go_to_type_definition_split(action, window, cx)
373 .detach_and_log_err(cx);
374 });
375 register_action(editor, window, Editor::open_url);
376 register_action(editor, window, Editor::open_selected_filename);
377 register_action(editor, window, Editor::fold);
378 register_action(editor, window, Editor::fold_at_level);
379 register_action(editor, window, Editor::fold_all);
380 register_action(editor, window, Editor::fold_function_bodies);
381 register_action(editor, window, Editor::fold_at);
382 register_action(editor, window, Editor::fold_recursive);
383 register_action(editor, window, Editor::toggle_fold);
384 register_action(editor, window, Editor::toggle_fold_recursive);
385 register_action(editor, window, Editor::unfold_lines);
386 register_action(editor, window, Editor::unfold_recursive);
387 register_action(editor, window, Editor::unfold_all);
388 register_action(editor, window, Editor::unfold_at);
389 register_action(editor, window, Editor::fold_selected_ranges);
390 register_action(editor, window, Editor::set_mark);
391 register_action(editor, window, Editor::swap_selection_ends);
392 register_action(editor, window, Editor::show_completions);
393 register_action(editor, window, Editor::show_word_completions);
394 register_action(editor, window, Editor::toggle_code_actions);
395 register_action(editor, window, Editor::open_excerpts);
396 register_action(editor, window, Editor::open_excerpts_in_split);
397 register_action(editor, window, Editor::open_proposed_changes_editor);
398 register_action(editor, window, Editor::toggle_soft_wrap);
399 register_action(editor, window, Editor::toggle_tab_bar);
400 register_action(editor, window, Editor::toggle_line_numbers);
401 register_action(editor, window, Editor::toggle_relative_line_numbers);
402 register_action(editor, window, Editor::toggle_indent_guides);
403 register_action(editor, window, Editor::toggle_inlay_hints);
404 register_action(editor, window, Editor::toggle_edit_predictions);
405 register_action(editor, window, Editor::toggle_inline_diagnostics);
406 register_action(editor, window, hover_popover::hover);
407 register_action(editor, window, Editor::reveal_in_finder);
408 register_action(editor, window, Editor::copy_path);
409 register_action(editor, window, Editor::copy_relative_path);
410 register_action(editor, window, Editor::copy_file_name);
411 register_action(editor, window, Editor::copy_file_name_without_extension);
412 register_action(editor, window, Editor::copy_highlight_json);
413 register_action(editor, window, Editor::copy_permalink_to_line);
414 register_action(editor, window, Editor::open_permalink_to_line);
415 register_action(editor, window, Editor::copy_file_location);
416 register_action(editor, window, Editor::toggle_git_blame);
417 register_action(editor, window, Editor::toggle_git_blame_inline);
418 register_action(editor, window, Editor::toggle_selected_diff_hunks);
419 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
420 register_action(editor, window, Editor::stage_and_next);
421 register_action(editor, window, Editor::unstage_and_next);
422 register_action(editor, window, Editor::expand_all_diff_hunks);
423
424 register_action(editor, window, |editor, action, window, cx| {
425 if let Some(task) = editor.format(action, window, cx) {
426 task.detach_and_notify_err(window, cx);
427 } else {
428 cx.propagate();
429 }
430 });
431 register_action(editor, window, |editor, action, window, cx| {
432 if let Some(task) = editor.format_selections(action, window, cx) {
433 task.detach_and_notify_err(window, cx);
434 } else {
435 cx.propagate();
436 }
437 });
438 register_action(editor, window, |editor, action, window, cx| {
439 if let Some(task) = editor.organize_imports(action, window, cx) {
440 task.detach_and_notify_err(window, cx);
441 } else {
442 cx.propagate();
443 }
444 });
445 register_action(editor, window, Editor::restart_language_server);
446 register_action(editor, window, Editor::show_character_palette);
447 register_action(editor, window, |editor, action, window, cx| {
448 if let Some(task) = editor.confirm_completion(action, window, cx) {
449 task.detach_and_notify_err(window, cx);
450 } else {
451 cx.propagate();
452 }
453 });
454 register_action(editor, window, |editor, action, window, cx| {
455 if let Some(task) = editor.compose_completion(action, window, cx) {
456 task.detach_and_notify_err(window, cx);
457 } else {
458 cx.propagate();
459 }
460 });
461 register_action(editor, window, |editor, action, window, cx| {
462 if let Some(task) = editor.confirm_code_action(action, window, cx) {
463 task.detach_and_notify_err(window, cx);
464 } else {
465 cx.propagate();
466 }
467 });
468 register_action(editor, window, |editor, action, window, cx| {
469 if let Some(task) = editor.rename(action, window, cx) {
470 task.detach_and_notify_err(window, cx);
471 } else {
472 cx.propagate();
473 }
474 });
475 register_action(editor, window, |editor, action, window, cx| {
476 if let Some(task) = editor.confirm_rename(action, window, cx) {
477 task.detach_and_notify_err(window, cx);
478 } else {
479 cx.propagate();
480 }
481 });
482 register_action(editor, window, |editor, action, window, cx| {
483 if let Some(task) = editor.find_all_references(action, window, cx) {
484 task.detach_and_log_err(cx);
485 } else {
486 cx.propagate();
487 }
488 });
489 register_action(editor, window, Editor::show_signature_help);
490 register_action(editor, window, Editor::next_edit_prediction);
491 register_action(editor, window, Editor::previous_edit_prediction);
492 register_action(editor, window, Editor::show_inline_completion);
493 register_action(editor, window, Editor::context_menu_first);
494 register_action(editor, window, Editor::context_menu_prev);
495 register_action(editor, window, Editor::context_menu_next);
496 register_action(editor, window, Editor::context_menu_last);
497 register_action(editor, window, Editor::display_cursor_names);
498 register_action(editor, window, Editor::unique_lines_case_insensitive);
499 register_action(editor, window, Editor::unique_lines_case_sensitive);
500 register_action(editor, window, Editor::accept_partial_inline_completion);
501 register_action(editor, window, Editor::accept_edit_prediction);
502 register_action(editor, window, Editor::restore_file);
503 register_action(editor, window, Editor::git_restore);
504 register_action(editor, window, Editor::apply_all_diff_hunks);
505 register_action(editor, window, Editor::apply_selected_diff_hunks);
506 register_action(editor, window, Editor::open_active_item_in_terminal);
507 register_action(editor, window, Editor::reload_file);
508 register_action(editor, window, Editor::spawn_nearest_task);
509 register_action(editor, window, Editor::insert_uuid_v4);
510 register_action(editor, window, Editor::insert_uuid_v7);
511 register_action(editor, window, Editor::open_selections_in_multibuffer);
512 }
513
514 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
515 let position_map = layout.position_map.clone();
516 window.on_key_event({
517 let editor = self.editor.clone();
518 move |event: &ModifiersChangedEvent, phase, window, cx| {
519 if phase != DispatchPhase::Bubble {
520 return;
521 }
522 editor.update(cx, |editor, cx| {
523 let inlay_hint_settings = inlay_hint_settings(
524 editor.selections.newest_anchor().head(),
525 &editor.buffer.read(cx).snapshot(cx),
526 cx,
527 );
528
529 if let Some(inlay_modifiers) = inlay_hint_settings
530 .toggle_on_modifiers_press
531 .as_ref()
532 .filter(|modifiers| modifiers.modified())
533 {
534 editor.refresh_inlay_hints(
535 InlayHintRefreshReason::ModifiersChanged(
536 inlay_modifiers == &event.modifiers,
537 ),
538 cx,
539 );
540 }
541
542 if editor.hover_state.focused(window, cx) {
543 return;
544 }
545
546 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
547 })
548 }
549 });
550 }
551
552 fn mouse_left_down(
553 editor: &mut Editor,
554 event: &MouseDownEvent,
555 hovered_hunk: Option<Range<Anchor>>,
556 position_map: &PositionMap,
557 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
558 window: &mut Window,
559 cx: &mut Context<Editor>,
560 ) {
561 if window.default_prevented() {
562 return;
563 }
564
565 let text_hitbox = &position_map.text_hitbox;
566 let gutter_hitbox = &position_map.gutter_hitbox;
567 let mut click_count = event.click_count;
568 let mut modifiers = event.modifiers;
569
570 if let Some(hovered_hunk) = hovered_hunk {
571 editor.toggle_single_diff_hunk(hovered_hunk, cx);
572 cx.notify();
573 return;
574 } else if gutter_hitbox.is_hovered(window) {
575 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
576 } else if !text_hitbox.is_hovered(window) {
577 return;
578 }
579
580 let is_singleton = editor.buffer().read(cx).is_singleton();
581
582 if click_count == 2 && !is_singleton {
583 match EditorSettings::get_global(cx).double_click_in_multibuffer {
584 DoubleClickInMultibuffer::Select => {
585 // do nothing special on double click, all selection logic is below
586 }
587 DoubleClickInMultibuffer::Open => {
588 if modifiers.alt {
589 // if double click is made with alt, pretend it's a regular double click without opening and alt,
590 // and run the selection logic.
591 modifiers.alt = false;
592 } else {
593 let scroll_position_row =
594 position_map.scroll_pixel_position.y / position_map.line_height;
595 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
596 + position_map.scroll_pixel_position.y)
597 / position_map.line_height)
598 as u32;
599 let multi_buffer_row = position_map
600 .snapshot
601 .display_point_to_point(
602 DisplayPoint::new(DisplayRow(display_row), 0),
603 Bias::Right,
604 )
605 .row;
606 let line_offset_from_top = display_row - scroll_position_row as u32;
607 // if double click is made without alt, open the corresponding excerp
608 editor.open_excerpts_common(
609 Some(JumpData::MultiBufferRow {
610 row: MultiBufferRow(multi_buffer_row),
611 line_offset_from_top,
612 }),
613 false,
614 window,
615 cx,
616 );
617 return;
618 }
619 }
620 }
621 }
622
623 let point_for_position = position_map.point_for_position(event.position);
624 let position = point_for_position.previous_valid;
625 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
626 editor.select(
627 SelectPhase::BeginColumnar {
628 position,
629 reset: false,
630 goal_column: point_for_position.exact_unclipped.column(),
631 },
632 window,
633 cx,
634 );
635 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
636 {
637 editor.select(
638 SelectPhase::Extend {
639 position,
640 click_count,
641 },
642 window,
643 cx,
644 );
645 } else {
646 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
647 let multi_cursor_modifier = match multi_cursor_setting {
648 MultiCursorModifier::Alt => modifiers.alt,
649 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
650 };
651 editor.select(
652 SelectPhase::Begin {
653 position,
654 add: multi_cursor_modifier,
655 click_count,
656 },
657 window,
658 cx,
659 );
660 }
661 cx.stop_propagation();
662
663 if !is_singleton {
664 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
665 + position_map.scroll_pixel_position.y)
666 / position_map.line_height) as u32;
667 let multi_buffer_row = position_map
668 .snapshot
669 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
670 .row;
671 if line_numbers
672 .get(&MultiBufferRow(multi_buffer_row))
673 .and_then(|line_number| line_number.hitbox.as_ref())
674 .is_some_and(|hitbox| hitbox.contains(&event.position))
675 {
676 let scroll_position_row =
677 position_map.scroll_pixel_position.y / position_map.line_height;
678 let line_offset_from_top = display_row - scroll_position_row as u32;
679
680 editor.open_excerpts_common(
681 Some(JumpData::MultiBufferRow {
682 row: MultiBufferRow(multi_buffer_row),
683 line_offset_from_top,
684 }),
685 modifiers.alt,
686 window,
687 cx,
688 );
689 cx.stop_propagation();
690 }
691 }
692 }
693
694 fn mouse_right_down(
695 editor: &mut Editor,
696 event: &MouseDownEvent,
697 position_map: &PositionMap,
698 window: &mut Window,
699 cx: &mut Context<Editor>,
700 ) {
701 if !position_map.text_hitbox.is_hovered(window) {
702 return;
703 }
704 let point_for_position = position_map.point_for_position(event.position);
705 mouse_context_menu::deploy_context_menu(
706 editor,
707 Some(event.position),
708 point_for_position.previous_valid,
709 window,
710 cx,
711 );
712 cx.stop_propagation();
713 }
714
715 fn mouse_middle_down(
716 editor: &mut Editor,
717 event: &MouseDownEvent,
718 position_map: &PositionMap,
719 window: &mut Window,
720 cx: &mut Context<Editor>,
721 ) {
722 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
723 return;
724 }
725
726 let point_for_position = position_map.point_for_position(event.position);
727 let position = point_for_position.previous_valid;
728
729 editor.select(
730 SelectPhase::BeginColumnar {
731 position,
732 reset: true,
733 goal_column: point_for_position.exact_unclipped.column(),
734 },
735 window,
736 cx,
737 );
738 }
739
740 fn mouse_up(
741 editor: &mut Editor,
742 event: &MouseUpEvent,
743 position_map: &PositionMap,
744 window: &mut Window,
745 cx: &mut Context<Editor>,
746 ) {
747 let text_hitbox = &position_map.text_hitbox;
748 let end_selection = editor.has_pending_selection();
749 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
750
751 if end_selection {
752 editor.select(SelectPhase::End, window, cx);
753 }
754
755 if end_selection && pending_nonempty_selections {
756 cx.stop_propagation();
757 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
758 && event.button == MouseButton::Middle
759 {
760 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
761 return;
762 }
763
764 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
765 if EditorSettings::get_global(cx).middle_click_paste {
766 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
767 let point_for_position = position_map.point_for_position(event.position);
768 let position = point_for_position.previous_valid;
769
770 editor.select(
771 SelectPhase::Begin {
772 position,
773 add: false,
774 click_count: 1,
775 },
776 window,
777 cx,
778 );
779 editor.insert(&text, window, cx);
780 }
781 cx.stop_propagation()
782 }
783 }
784 }
785
786 fn click(
787 editor: &mut Editor,
788 event: &ClickEvent,
789 position_map: &PositionMap,
790 window: &mut Window,
791 cx: &mut Context<Editor>,
792 ) {
793 let text_hitbox = &position_map.text_hitbox;
794 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
795
796 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
797 let multi_cursor_modifier = match multi_cursor_setting {
798 MultiCursorModifier::Alt => event.modifiers().secondary(),
799 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
800 };
801
802 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
803 let point = position_map.point_for_position(event.up.position);
804 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
805
806 cx.stop_propagation();
807 }
808 }
809
810 fn mouse_dragged(
811 editor: &mut Editor,
812 event: &MouseMoveEvent,
813 position_map: &PositionMap,
814 window: &mut Window,
815 cx: &mut Context<Editor>,
816 ) {
817 if !editor.has_pending_selection() {
818 return;
819 }
820
821 let text_bounds = position_map.text_hitbox.bounds;
822 let point_for_position = position_map.point_for_position(event.position);
823 let mut scroll_delta = gpui::Point::<f32>::default();
824 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
825 let top = text_bounds.origin.y + vertical_margin;
826 let bottom = text_bounds.bottom_left().y - vertical_margin;
827 if event.position.y < top {
828 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
829 }
830 if event.position.y > bottom {
831 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
832 }
833
834 // We need horizontal width of text
835 let style = editor.style.clone().unwrap_or_default();
836 let font_id = window.text_system().resolve_font(&style.text.font());
837 let font_size = style.text.font_size.to_pixels(window.rem_size());
838 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
839
840 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
841
842 let scroll_space: Pixels = scroll_margin_x * em_width;
843
844 let left = text_bounds.origin.x + scroll_space;
845 let right = text_bounds.top_right().x - scroll_space;
846
847 if event.position.x < left {
848 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
849 }
850 if event.position.x > right {
851 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
852 }
853
854 editor.select(
855 SelectPhase::Update {
856 position: point_for_position.previous_valid,
857 goal_column: point_for_position.exact_unclipped.column(),
858 scroll_delta,
859 },
860 window,
861 cx,
862 );
863 }
864
865 fn mouse_moved(
866 editor: &mut Editor,
867 event: &MouseMoveEvent,
868 position_map: &PositionMap,
869 window: &mut Window,
870 cx: &mut Context<Editor>,
871 ) {
872 let text_hitbox = &position_map.text_hitbox;
873 let gutter_hitbox = &position_map.gutter_hitbox;
874 let modifiers = event.modifiers;
875 let gutter_hovered = gutter_hitbox.is_hovered(window);
876 editor.set_gutter_hovered(gutter_hovered, cx);
877
878 // Don't trigger hover popover if mouse is hovering over context menu
879 if text_hitbox.is_hovered(window) {
880 let point_for_position = position_map.point_for_position(event.position);
881
882 editor.update_hovered_link(
883 point_for_position,
884 &position_map.snapshot,
885 modifiers,
886 window,
887 cx,
888 );
889
890 if let Some(point) = point_for_position.as_valid() {
891 let anchor = position_map
892 .snapshot
893 .buffer_snapshot
894 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
895 hover_at(editor, Some(anchor), window, cx);
896 Self::update_visible_cursor(editor, point, position_map, window, cx);
897 } else {
898 hover_at(editor, None, window, cx);
899 }
900 } else {
901 editor.hide_hovered_link(cx);
902 hover_at(editor, None, window, cx);
903 if gutter_hovered {
904 cx.stop_propagation();
905 }
906 }
907 }
908
909 fn update_visible_cursor(
910 editor: &mut Editor,
911 point: DisplayPoint,
912 position_map: &PositionMap,
913 window: &mut Window,
914 cx: &mut Context<Editor>,
915 ) {
916 let snapshot = &position_map.snapshot;
917 let Some(hub) = editor.collaboration_hub() else {
918 return;
919 };
920 let start = snapshot.display_snapshot.clip_point(
921 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
922 Bias::Left,
923 );
924 let end = snapshot.display_snapshot.clip_point(
925 DisplayPoint::new(
926 point.row(),
927 (point.column() + 1).min(snapshot.line_len(point.row())),
928 ),
929 Bias::Right,
930 );
931
932 let range = snapshot
933 .buffer_snapshot
934 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
935 ..snapshot
936 .buffer_snapshot
937 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
938
939 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
940 return;
941 };
942 let key = crate::HoveredCursor {
943 replica_id: selection.replica_id,
944 selection_id: selection.selection.id,
945 };
946 editor.hovered_cursors.insert(
947 key.clone(),
948 cx.spawn_in(window, |editor, mut cx| async move {
949 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
950 editor
951 .update(&mut cx, |editor, cx| {
952 editor.hovered_cursors.remove(&key);
953 cx.notify();
954 })
955 .ok();
956 }),
957 );
958 cx.notify()
959 }
960
961 fn layout_selections(
962 &self,
963 start_anchor: Anchor,
964 end_anchor: Anchor,
965 local_selections: &[Selection<Point>],
966 snapshot: &EditorSnapshot,
967 start_row: DisplayRow,
968 end_row: DisplayRow,
969 window: &mut Window,
970 cx: &mut App,
971 ) -> (
972 Vec<(PlayerColor, Vec<SelectionLayout>)>,
973 BTreeMap<DisplayRow, bool>,
974 Option<DisplayPoint>,
975 ) {
976 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
977 let mut active_rows = BTreeMap::new();
978 let mut newest_selection_head = None;
979 self.editor.update(cx, |editor, cx| {
980 if editor.show_local_selections {
981 let mut layouts = Vec::new();
982 let newest = editor.selections.newest(cx);
983 for selection in local_selections.iter().cloned() {
984 let is_empty = selection.start == selection.end;
985 let is_newest = selection == newest;
986
987 let layout = SelectionLayout::new(
988 selection,
989 editor.selections.line_mode,
990 editor.cursor_shape,
991 &snapshot.display_snapshot,
992 is_newest,
993 editor.leader_peer_id.is_none(),
994 None,
995 );
996 if is_newest {
997 newest_selection_head = Some(layout.head);
998 }
999
1000 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1001 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1002 {
1003 let contains_non_empty_selection =
1004 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
1005 *contains_non_empty_selection |= !is_empty;
1006 }
1007 layouts.push(layout);
1008 }
1009
1010 let player = editor.current_user_player_color(cx);
1011 selections.push((player, layouts));
1012 }
1013
1014 if let Some(collaboration_hub) = &editor.collaboration_hub {
1015 // When following someone, render the local selections in their color.
1016 if let Some(leader_id) = editor.leader_peer_id {
1017 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1018 {
1019 if let Some(participant_index) = collaboration_hub
1020 .user_participant_indices(cx)
1021 .get(&collaborator.user_id)
1022 {
1023 if let Some((local_selection_style, _)) = selections.first_mut() {
1024 *local_selection_style = cx
1025 .theme()
1026 .players()
1027 .color_for_participant(participant_index.0);
1028 }
1029 }
1030 }
1031 }
1032
1033 let mut remote_selections = HashMap::default();
1034 for selection in snapshot.remote_selections_in_range(
1035 &(start_anchor..end_anchor),
1036 collaboration_hub.as_ref(),
1037 cx,
1038 ) {
1039 let selection_style =
1040 Self::get_participant_color(selection.participant_index, cx);
1041
1042 // Don't re-render the leader's selections, since the local selections
1043 // match theirs.
1044 if Some(selection.peer_id) == editor.leader_peer_id {
1045 continue;
1046 }
1047 let key = HoveredCursor {
1048 replica_id: selection.replica_id,
1049 selection_id: selection.selection.id,
1050 };
1051
1052 let is_shown =
1053 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1054
1055 remote_selections
1056 .entry(selection.replica_id)
1057 .or_insert((selection_style, Vec::new()))
1058 .1
1059 .push(SelectionLayout::new(
1060 selection.selection,
1061 selection.line_mode,
1062 selection.cursor_shape,
1063 &snapshot.display_snapshot,
1064 false,
1065 false,
1066 if is_shown { selection.user_name } else { None },
1067 ));
1068 }
1069
1070 selections.extend(remote_selections.into_values());
1071 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1072 let layouts = snapshot
1073 .buffer_snapshot
1074 .selections_in_range(&(start_anchor..end_anchor), true)
1075 .map(move |(_, line_mode, cursor_shape, selection)| {
1076 SelectionLayout::new(
1077 selection,
1078 line_mode,
1079 cursor_shape,
1080 &snapshot.display_snapshot,
1081 false,
1082 false,
1083 None,
1084 )
1085 })
1086 .collect::<Vec<_>>();
1087 let player = editor.current_user_player_color(cx);
1088 selections.push((player, layouts));
1089 }
1090 });
1091 (selections, active_rows, newest_selection_head)
1092 }
1093
1094 fn collect_cursors(
1095 &self,
1096 snapshot: &EditorSnapshot,
1097 cx: &mut App,
1098 ) -> Vec<(DisplayPoint, Hsla)> {
1099 let editor = self.editor.read(cx);
1100 let mut cursors = Vec::new();
1101 let mut skip_local = false;
1102 let mut add_cursor = |anchor: Anchor, color| {
1103 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1104 };
1105 // Remote cursors
1106 if let Some(collaboration_hub) = &editor.collaboration_hub {
1107 for remote_selection in snapshot.remote_selections_in_range(
1108 &(Anchor::min()..Anchor::max()),
1109 collaboration_hub.deref(),
1110 cx,
1111 ) {
1112 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1113 add_cursor(remote_selection.selection.head(), color.cursor);
1114 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1115 skip_local = true;
1116 }
1117 }
1118 }
1119 // Local cursors
1120 if !skip_local {
1121 let color = cx.theme().players().local().cursor;
1122 editor.selections.disjoint.iter().for_each(|selection| {
1123 add_cursor(selection.head(), color);
1124 });
1125 if let Some(ref selection) = editor.selections.pending_anchor() {
1126 add_cursor(selection.head(), color);
1127 }
1128 }
1129 cursors
1130 }
1131
1132 fn layout_visible_cursors(
1133 &self,
1134 snapshot: &EditorSnapshot,
1135 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1136 block_start_rows: &HashSet<DisplayRow>,
1137 visible_display_row_range: Range<DisplayRow>,
1138 line_layouts: &[LineWithInvisibles],
1139 text_hitbox: &Hitbox,
1140 content_origin: gpui::Point<Pixels>,
1141 scroll_position: gpui::Point<f32>,
1142 scroll_pixel_position: gpui::Point<Pixels>,
1143 line_height: Pixels,
1144 em_width: Pixels,
1145 em_advance: Pixels,
1146 autoscroll_containing_element: bool,
1147 window: &mut Window,
1148 cx: &mut App,
1149 ) -> Vec<CursorLayout> {
1150 let mut autoscroll_bounds = None;
1151 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1152 let mut cursors = Vec::new();
1153
1154 let show_local_cursors = editor.show_local_cursors(window, cx);
1155
1156 for (player_color, selections) in selections {
1157 for selection in selections {
1158 let cursor_position = selection.head;
1159
1160 let in_range = visible_display_row_range.contains(&cursor_position.row());
1161 if (selection.is_local && !show_local_cursors)
1162 || !in_range
1163 || block_start_rows.contains(&cursor_position.row())
1164 {
1165 continue;
1166 }
1167
1168 let cursor_row_layout = &line_layouts
1169 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1170 let cursor_column = cursor_position.column() as usize;
1171
1172 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1173 let mut block_width =
1174 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1175 if block_width == Pixels::ZERO {
1176 block_width = em_advance;
1177 }
1178 let block_text = if let CursorShape::Block = selection.cursor_shape {
1179 snapshot
1180 .grapheme_at(cursor_position)
1181 .or_else(|| {
1182 if cursor_column == 0 {
1183 snapshot.placeholder_text().and_then(|s| {
1184 s.graphemes(true).next().map(|s| s.to_string().into())
1185 })
1186 } else {
1187 None
1188 }
1189 })
1190 .and_then(|text| {
1191 let len = text.len();
1192
1193 let font = cursor_row_layout
1194 .font_id_for_index(cursor_column)
1195 .and_then(|cursor_font_id| {
1196 window.text_system().get_font_for_id(cursor_font_id)
1197 })
1198 .unwrap_or(self.style.text.font());
1199
1200 // Invert the text color for the block cursor. Ensure that the text
1201 // color is opaque enough to be visible against the background color.
1202 //
1203 // 0.75 is an arbitrary threshold to determine if the background color is
1204 // opaque enough to use as a text color.
1205 //
1206 // TODO: In the future we should ensure themes have a `text_inverse` color.
1207 let color = if cx.theme().colors().editor_background.a < 0.75 {
1208 match cx.theme().appearance {
1209 Appearance::Dark => Hsla::black(),
1210 Appearance::Light => Hsla::white(),
1211 }
1212 } else {
1213 cx.theme().colors().editor_background
1214 };
1215
1216 window
1217 .text_system()
1218 .shape_line(
1219 text,
1220 cursor_row_layout.font_size,
1221 &[TextRun {
1222 len,
1223 font,
1224 color,
1225 background_color: None,
1226 strikethrough: None,
1227 underline: None,
1228 }],
1229 )
1230 .log_err()
1231 })
1232 } else {
1233 None
1234 };
1235
1236 let x = cursor_character_x - scroll_pixel_position.x;
1237 let y = (cursor_position.row().as_f32()
1238 - scroll_pixel_position.y / line_height)
1239 * line_height;
1240 if selection.is_newest {
1241 editor.pixel_position_of_newest_cursor = Some(point(
1242 text_hitbox.origin.x + x + block_width / 2.,
1243 text_hitbox.origin.y + y + line_height / 2.,
1244 ));
1245
1246 if autoscroll_containing_element {
1247 let top = text_hitbox.origin.y
1248 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1249 * line_height;
1250 let left = text_hitbox.origin.x
1251 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1252 .max(0.)
1253 * em_width;
1254
1255 let bottom = text_hitbox.origin.y
1256 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1257 * line_height;
1258 let right = text_hitbox.origin.x
1259 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1260 * em_width;
1261
1262 autoscroll_bounds =
1263 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1264 }
1265 }
1266
1267 let mut cursor = CursorLayout {
1268 color: player_color.cursor,
1269 block_width,
1270 origin: point(x, y),
1271 line_height,
1272 shape: selection.cursor_shape,
1273 block_text,
1274 cursor_name: None,
1275 };
1276 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1277 string: name,
1278 color: self.style.background,
1279 is_top_row: cursor_position.row().0 == 0,
1280 });
1281 cursor.layout(content_origin, cursor_name, window, cx);
1282 cursors.push(cursor);
1283 }
1284 }
1285
1286 cursors
1287 });
1288
1289 if let Some(bounds) = autoscroll_bounds {
1290 window.request_autoscroll(bounds);
1291 }
1292
1293 cursor_layouts
1294 }
1295
1296 fn layout_scrollbars(
1297 &self,
1298 snapshot: &EditorSnapshot,
1299 scrollbar_range_data: ScrollbarRangeData,
1300 scroll_position: gpui::Point<f32>,
1301 non_visible_cursors: bool,
1302 window: &mut Window,
1303 cx: &mut App,
1304 ) -> AxisPair<Option<ScrollbarLayout>> {
1305 let letter_size = scrollbar_range_data.letter_size;
1306 let text_units_per_page = axis_pair(
1307 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1308 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1309 );
1310
1311 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1312 let show_scrollbars = self.editor.read(cx).show_scrollbars
1313 && match scrollbar_settings.show {
1314 ShowScrollbar::Auto => {
1315 let editor = self.editor.read(cx);
1316 let is_singleton = editor.is_singleton(cx);
1317 // Git
1318 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1319 ||
1320 // Buffer Search Results
1321 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1322 ||
1323 // Selected Text Occurrences
1324 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1325 ||
1326 // Selected Symbol Occurrences
1327 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1328 ||
1329 // Diagnostics
1330 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1331 ||
1332 // Cursors out of sight
1333 non_visible_cursors
1334 ||
1335 // Scrollmanager
1336 editor.scroll_manager.scrollbars_visible()
1337 }
1338 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1339 ShowScrollbar::Always => true,
1340 ShowScrollbar::Never => false,
1341 };
1342
1343 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1344
1345 if snapshot.mode != EditorMode::Full {
1346 return axis_pair(None, None);
1347 }
1348
1349 let visible_range = axis_pair(
1350 axes.horizontal
1351 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1352 axes.vertical
1353 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1354 );
1355
1356 // If a drag took place after we started dragging the scrollbar,
1357 // cancel the scrollbar drag.
1358 if cx.has_active_drag() {
1359 self.editor.update(cx, |editor, cx| {
1360 editor
1361 .scroll_manager
1362 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1363 editor
1364 .scroll_manager
1365 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1366 });
1367 }
1368
1369 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1370
1371 let track_bounds = axis_pair(
1372 axes.horizontal.then(|| {
1373 Bounds::from_corners(
1374 point(
1375 text_bounds.bottom_left().x,
1376 text_bounds.bottom_left().y - self.style.scrollbar_width,
1377 ),
1378 point(
1379 text_bounds.bottom_right().x
1380 - if axes.vertical {
1381 self.style.scrollbar_width
1382 } else {
1383 px(0.)
1384 },
1385 text_bounds.bottom_right().y,
1386 ),
1387 )
1388 }),
1389 axes.vertical.then(|| {
1390 Bounds::from_corners(
1391 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1392 text_bounds.bottom_right(),
1393 )
1394 }),
1395 );
1396
1397 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1398 let total_text_units = axis_pair(
1399 Some(scroll_range_size.width / letter_size.width),
1400 Some(scroll_range_size.height / letter_size.height),
1401 );
1402
1403 let thumb_size = axis_pair(
1404 total_text_units
1405 .horizontal
1406 .zip(track_bounds.horizontal)
1407 .and_then(|(total_text_units_x, track_bounds_x)| {
1408 if text_units_per_page.horizontal >= total_text_units_x {
1409 return None;
1410 }
1411 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1412 return Some(track_bounds_x.size.width);
1413 }
1414 let thumb_size = track_bounds_x.size.width
1415 * (text_units_per_page.horizontal / total_text_units_x);
1416 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1417 }),
1418 total_text_units.vertical.zip(track_bounds.vertical).map(
1419 |(total_text_units_y, track_bounds_y)| {
1420 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1421 return track_bounds_y.size.height;
1422 }
1423 let thumb_size = track_bounds_y.size.height
1424 * (text_units_per_page.vertical / total_text_units_y);
1425 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1426 },
1427 ),
1428 );
1429
1430 // NOTE: Space not taken by track bounds divided by text units not on screen
1431 let text_unit_size = axis_pair(
1432 thumb_size
1433 .horizontal
1434 .zip(track_bounds.horizontal)
1435 .zip(total_text_units.horizontal)
1436 .map(|((thumb_size, track_bounds), total_text_units)| {
1437 (track_bounds.size.width - thumb_size)
1438 / (total_text_units - text_units_per_page.horizontal).max(0.)
1439 }),
1440 thumb_size
1441 .vertical
1442 .zip(track_bounds.vertical)
1443 .zip(total_text_units.vertical)
1444 .map(|((thumb_size, track_bounds), total_text_units)| {
1445 (track_bounds.size.height - thumb_size)
1446 / (total_text_units - text_units_per_page.vertical).max(0.)
1447 }),
1448 );
1449
1450 let horizontal_scrollbar = track_bounds
1451 .horizontal
1452 .zip(visible_range.horizontal)
1453 .zip(text_unit_size.horizontal)
1454 .zip(thumb_size.horizontal)
1455 .map(
1456 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1457 hitbox: window.insert_hitbox(track_bounds, false),
1458 visible_range,
1459 text_unit_size,
1460 visible: show_scrollbars,
1461 thumb_size,
1462 axis: Axis::Horizontal,
1463 },
1464 );
1465
1466 let vertical_scrollbar = track_bounds
1467 .vertical
1468 .zip(visible_range.vertical)
1469 .zip(text_unit_size.vertical)
1470 .zip(thumb_size.vertical)
1471 .map(
1472 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1473 hitbox: window.insert_hitbox(track_bounds, false),
1474 visible_range,
1475 text_unit_size,
1476 visible: show_scrollbars,
1477 thumb_size,
1478 axis: Axis::Vertical,
1479 },
1480 );
1481
1482 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1483 }
1484
1485 fn prepaint_crease_toggles(
1486 &self,
1487 crease_toggles: &mut [Option<AnyElement>],
1488 line_height: Pixels,
1489 gutter_dimensions: &GutterDimensions,
1490 gutter_settings: crate::editor_settings::Gutter,
1491 scroll_pixel_position: gpui::Point<Pixels>,
1492 gutter_hitbox: &Hitbox,
1493 window: &mut Window,
1494 cx: &mut App,
1495 ) {
1496 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1497 if let Some(crease_toggle) = crease_toggle {
1498 debug_assert!(gutter_settings.folds);
1499 let available_space = size(
1500 AvailableSpace::MinContent,
1501 AvailableSpace::Definite(line_height * 0.55),
1502 );
1503 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1504
1505 let position = point(
1506 gutter_dimensions.width - gutter_dimensions.right_padding,
1507 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1508 );
1509 let centering_offset = point(
1510 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1511 (line_height - crease_toggle_size.height) / 2.,
1512 );
1513 let origin = gutter_hitbox.origin + position + centering_offset;
1514 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1515 }
1516 }
1517 }
1518
1519 fn prepaint_expand_toggles(
1520 &self,
1521 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1522 window: &mut Window,
1523 cx: &mut App,
1524 ) {
1525 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1526 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1527 expand_toggle.layout_as_root(available_space, window, cx);
1528 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1529 }
1530 }
1531
1532 fn prepaint_crease_trailers(
1533 &self,
1534 trailers: Vec<Option<AnyElement>>,
1535 lines: &[LineWithInvisibles],
1536 line_height: Pixels,
1537 content_origin: gpui::Point<Pixels>,
1538 scroll_pixel_position: gpui::Point<Pixels>,
1539 em_width: Pixels,
1540 window: &mut Window,
1541 cx: &mut App,
1542 ) -> Vec<Option<CreaseTrailerLayout>> {
1543 trailers
1544 .into_iter()
1545 .enumerate()
1546 .map(|(ix, element)| {
1547 let mut element = element?;
1548 let available_space = size(
1549 AvailableSpace::MinContent,
1550 AvailableSpace::Definite(line_height),
1551 );
1552 let size = element.layout_as_root(available_space, window, cx);
1553
1554 let line = &lines[ix];
1555 let padding = if line.width == Pixels::ZERO {
1556 Pixels::ZERO
1557 } else {
1558 4. * em_width
1559 };
1560 let position = point(
1561 scroll_pixel_position.x + line.width + padding,
1562 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1563 );
1564 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1565 let origin = content_origin + position + centering_offset;
1566 element.prepaint_as_root(origin, available_space, window, cx);
1567 Some(CreaseTrailerLayout {
1568 element,
1569 bounds: Bounds::new(origin, size),
1570 })
1571 })
1572 .collect()
1573 }
1574
1575 // Folds contained in a hunk are ignored apart from shrinking visual size
1576 // If a fold contains any hunks then that fold line is marked as modified
1577 fn layout_gutter_diff_hunks(
1578 &self,
1579 line_height: Pixels,
1580 gutter_hitbox: &Hitbox,
1581 display_rows: Range<DisplayRow>,
1582 snapshot: &EditorSnapshot,
1583 window: &mut Window,
1584 cx: &mut App,
1585 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1586 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1587 let mut display_hunks = snapshot
1588 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1589 .map(|hunk| (hunk, None))
1590 .collect::<Vec<_>>();
1591 let git_gutter_setting = ProjectSettings::get_global(cx)
1592 .git
1593 .git_gutter
1594 .unwrap_or_default();
1595 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1596 for (hunk, hitbox) in &mut display_hunks {
1597 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1598 let hunk_bounds =
1599 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1600 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1601 }
1602 }
1603 }
1604
1605 display_hunks
1606 }
1607
1608 fn layout_inline_diagnostics(
1609 &self,
1610 line_layouts: &[LineWithInvisibles],
1611 crease_trailers: &[Option<CreaseTrailerLayout>],
1612 content_origin: gpui::Point<Pixels>,
1613 scroll_pixel_position: gpui::Point<Pixels>,
1614 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1615 start_row: DisplayRow,
1616 end_row: DisplayRow,
1617 line_height: Pixels,
1618 em_width: Pixels,
1619 style: &EditorStyle,
1620 window: &mut Window,
1621 cx: &mut App,
1622 ) -> HashMap<DisplayRow, AnyElement> {
1623 let max_severity = ProjectSettings::get_global(cx)
1624 .diagnostics
1625 .inline
1626 .max_severity
1627 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1628 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1629 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1630 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1631 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1632 });
1633
1634 let active_diagnostics_group = self
1635 .editor
1636 .read(cx)
1637 .active_diagnostics
1638 .as_ref()
1639 .map(|active_diagnostics| active_diagnostics.group_id);
1640
1641 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1642 let snapshot = editor.snapshot(window, cx);
1643 editor
1644 .inline_diagnostics
1645 .iter()
1646 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1647 .filter(|(_, diagnostic)| match active_diagnostics_group {
1648 Some(active_diagnostics_group) => {
1649 // Active diagnostics are all shown in the editor already, no need to display them inline
1650 diagnostic.group_id != active_diagnostics_group
1651 }
1652 None => true,
1653 })
1654 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1655 .skip_while(|(point, _)| point.row() < start_row)
1656 .take_while(|(point, _)| point.row() < end_row)
1657 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1658 acc.entry(point.row())
1659 .or_insert_with(Vec::new)
1660 .push(diagnostic);
1661 acc
1662 })
1663 });
1664
1665 if diagnostics_by_rows.is_empty() {
1666 return HashMap::default();
1667 }
1668
1669 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1670 &DiagnosticSeverity::ERROR => Color::Error,
1671 &DiagnosticSeverity::WARNING => Color::Warning,
1672 &DiagnosticSeverity::INFORMATION => Color::Info,
1673 &DiagnosticSeverity::HINT => Color::Hint,
1674 _ => Color::Error,
1675 };
1676
1677 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1678 let min_x = ProjectSettings::get_global(cx)
1679 .diagnostics
1680 .inline
1681 .min_column as f32
1682 * em_width;
1683
1684 let mut elements = HashMap::default();
1685 for (row, mut diagnostics) in diagnostics_by_rows {
1686 diagnostics.sort_by_key(|diagnostic| {
1687 (
1688 diagnostic.severity,
1689 std::cmp::Reverse(diagnostic.is_primary),
1690 diagnostic.start.row,
1691 diagnostic.start.column,
1692 )
1693 });
1694
1695 let Some(diagnostic_to_render) = diagnostics
1696 .iter()
1697 .find(|diagnostic| diagnostic.is_primary)
1698 .or_else(|| diagnostics.first())
1699 else {
1700 continue;
1701 };
1702
1703 let pos_y = content_origin.y
1704 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1705
1706 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1707 let pos_x = {
1708 let crease_trailer_layout = &crease_trailers[window_ix];
1709 let line_layout = &line_layouts[window_ix];
1710
1711 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1712 crease_trailer.bounds.right()
1713 } else {
1714 content_origin.x - scroll_pixel_position.x + line_layout.width
1715 };
1716
1717 let padded_line = line_end + padding;
1718 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1719
1720 cmp::max(padded_line, min_start)
1721 };
1722
1723 let behind_inline_completion_popover = inline_completion_popover_origin
1724 .as_ref()
1725 .map_or(false, |inline_completion_popover_origin| {
1726 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1727 });
1728 let opacity = if behind_inline_completion_popover {
1729 0.5
1730 } else {
1731 1.0
1732 };
1733
1734 let mut element = h_flex()
1735 .id(("diagnostic", row.0))
1736 .h(line_height)
1737 .w_full()
1738 .px_1()
1739 .rounded_xs()
1740 .opacity(opacity)
1741 .bg(severity_to_color(&diagnostic_to_render.severity)
1742 .color(cx)
1743 .opacity(0.05))
1744 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1745 .text_sm()
1746 .font_family(style.text.font().family)
1747 .child(diagnostic_to_render.message.clone())
1748 .into_any();
1749
1750 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1751
1752 elements.insert(row, element);
1753 }
1754
1755 elements
1756 }
1757
1758 fn layout_inline_blame(
1759 &self,
1760 display_row: DisplayRow,
1761 row_info: &RowInfo,
1762 line_layout: &LineWithInvisibles,
1763 crease_trailer: Option<&CreaseTrailerLayout>,
1764 em_width: Pixels,
1765 content_origin: gpui::Point<Pixels>,
1766 scroll_pixel_position: gpui::Point<Pixels>,
1767 line_height: Pixels,
1768 window: &mut Window,
1769 cx: &mut App,
1770 ) -> Option<AnyElement> {
1771 if !self
1772 .editor
1773 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1774 {
1775 return None;
1776 }
1777
1778 let editor = self.editor.read(cx);
1779 let blame = editor.blame.clone()?;
1780 let padding = {
1781 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1782 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1783
1784 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1785
1786 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1787 match &inline_completion.completion {
1788 InlineCompletion::Edit {
1789 display_mode: EditDisplayMode::TabAccept,
1790 ..
1791 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1792 _ => {}
1793 }
1794 }
1795
1796 padding * em_width
1797 };
1798
1799 let blame_entry = blame
1800 .update(cx, |blame, cx| {
1801 blame.blame_for_rows(&[*row_info], cx).next()
1802 })
1803 .flatten()?;
1804
1805 let mut element =
1806 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1807
1808 let start_y = content_origin.y
1809 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1810
1811 let start_x = {
1812 let line_end = if let Some(crease_trailer) = crease_trailer {
1813 crease_trailer.bounds.right()
1814 } else {
1815 content_origin.x - scroll_pixel_position.x + line_layout.width
1816 };
1817
1818 let padded_line_end = line_end + padding;
1819
1820 let min_column_in_pixels = ProjectSettings::get_global(cx)
1821 .git
1822 .inline_blame
1823 .and_then(|settings| settings.min_column)
1824 .map(|col| self.column_pixels(col as usize, window, cx))
1825 .unwrap_or(px(0.));
1826 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1827
1828 cmp::max(padded_line_end, min_start)
1829 };
1830
1831 let absolute_offset = point(start_x, start_y);
1832 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1833
1834 Some(element)
1835 }
1836
1837 fn layout_blame_entries(
1838 &self,
1839 buffer_rows: &[RowInfo],
1840 em_width: Pixels,
1841 scroll_position: gpui::Point<f32>,
1842 line_height: Pixels,
1843 gutter_hitbox: &Hitbox,
1844 max_width: Option<Pixels>,
1845 window: &mut Window,
1846 cx: &mut App,
1847 ) -> Option<Vec<AnyElement>> {
1848 if !self
1849 .editor
1850 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1851 {
1852 return None;
1853 }
1854
1855 let blame = self.editor.read(cx).blame.clone()?;
1856 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1857 blame.blame_for_rows(buffer_rows, cx).collect()
1858 });
1859
1860 let width = if let Some(max_width) = max_width {
1861 AvailableSpace::Definite(max_width)
1862 } else {
1863 AvailableSpace::MaxContent
1864 };
1865 let scroll_top = scroll_position.y * line_height;
1866 let start_x = em_width;
1867
1868 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1869
1870 let shaped_lines = blamed_rows
1871 .into_iter()
1872 .enumerate()
1873 .flat_map(|(ix, blame_entry)| {
1874 if let Some(blame_entry) = blame_entry {
1875 let mut element = render_blame_entry(
1876 ix,
1877 &blame,
1878 blame_entry,
1879 &self.style,
1880 &mut last_used_color,
1881 self.editor.clone(),
1882 cx,
1883 );
1884
1885 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1886 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1887
1888 element.prepaint_as_root(
1889 absolute_offset,
1890 size(width, AvailableSpace::MinContent),
1891 window,
1892 cx,
1893 );
1894
1895 Some(element)
1896 } else {
1897 None
1898 }
1899 })
1900 .collect();
1901
1902 Some(shaped_lines)
1903 }
1904
1905 fn layout_indent_guides(
1906 &self,
1907 content_origin: gpui::Point<Pixels>,
1908 text_origin: gpui::Point<Pixels>,
1909 visible_buffer_range: Range<MultiBufferRow>,
1910 scroll_pixel_position: gpui::Point<Pixels>,
1911 line_height: Pixels,
1912 snapshot: &DisplaySnapshot,
1913 window: &mut Window,
1914 cx: &mut App,
1915 ) -> Option<Vec<IndentGuideLayout>> {
1916 let indent_guides = self.editor.update(cx, |editor, cx| {
1917 editor.indent_guides(visible_buffer_range, snapshot, cx)
1918 })?;
1919
1920 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1921 editor
1922 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1923 .unwrap_or_default()
1924 });
1925
1926 Some(
1927 indent_guides
1928 .into_iter()
1929 .enumerate()
1930 .filter_map(|(i, indent_guide)| {
1931 let single_indent_width =
1932 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1933 let total_width = single_indent_width * indent_guide.depth as f32;
1934 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1935 if start_x >= text_origin.x {
1936 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1937 indent_guide.start_row..indent_guide.end_row,
1938 line_height,
1939 snapshot,
1940 );
1941
1942 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1943
1944 Some(IndentGuideLayout {
1945 origin: point(start_x, start_y),
1946 length,
1947 single_indent_width,
1948 depth: indent_guide.depth,
1949 active: active_indent_guide_indices.contains(&i),
1950 settings: indent_guide.settings,
1951 })
1952 } else {
1953 None
1954 }
1955 })
1956 .collect(),
1957 )
1958 }
1959
1960 fn calculate_indent_guide_bounds(
1961 row_range: Range<MultiBufferRow>,
1962 line_height: Pixels,
1963 snapshot: &DisplaySnapshot,
1964 ) -> (gpui::Pixels, gpui::Pixels) {
1965 let start_point = Point::new(row_range.start.0, 0);
1966 let end_point = Point::new(row_range.end.0, 0);
1967
1968 let row_range = start_point.to_display_point(snapshot).row()
1969 ..end_point.to_display_point(snapshot).row();
1970
1971 let mut prev_line = start_point;
1972 prev_line.row = prev_line.row.saturating_sub(1);
1973 let prev_line = prev_line.to_display_point(snapshot).row();
1974
1975 let mut cons_line = end_point;
1976 cons_line.row += 1;
1977 let cons_line = cons_line.to_display_point(snapshot).row();
1978
1979 let mut offset_y = row_range.start.0 as f32 * line_height;
1980 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1981
1982 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1983 if row_range.end == cons_line {
1984 length += line_height;
1985 }
1986
1987 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1988 // we want to extend the indent guide to the start of the block.
1989 let mut block_height = 0;
1990 let mut block_offset = 0;
1991 let mut found_excerpt_header = false;
1992 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1993 if matches!(block, Block::ExcerptBoundary { .. }) {
1994 found_excerpt_header = true;
1995 break;
1996 }
1997 block_offset += block.height();
1998 block_height += block.height();
1999 }
2000 if !found_excerpt_header {
2001 offset_y -= block_offset as f32 * line_height;
2002 length += block_height as f32 * line_height;
2003 }
2004
2005 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2006 // we want to ensure that the indent guide stops before the excerpt header.
2007 let mut block_height = 0;
2008 let mut found_excerpt_header = false;
2009 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2010 if matches!(block, Block::ExcerptBoundary { .. }) {
2011 found_excerpt_header = true;
2012 }
2013 block_height += block.height();
2014 }
2015 if found_excerpt_header {
2016 length -= block_height as f32 * line_height;
2017 }
2018
2019 (offset_y, length)
2020 }
2021
2022 fn layout_run_indicators(
2023 &self,
2024 line_height: Pixels,
2025 range: Range<DisplayRow>,
2026 row_infos: &[RowInfo],
2027 scroll_pixel_position: gpui::Point<Pixels>,
2028 gutter_dimensions: &GutterDimensions,
2029 gutter_hitbox: &Hitbox,
2030 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2031 snapshot: &EditorSnapshot,
2032 window: &mut Window,
2033 cx: &mut App,
2034 ) -> Vec<AnyElement> {
2035 self.editor.update(cx, |editor, cx| {
2036 let active_task_indicator_row =
2037 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2038 deployed_from_indicator,
2039 actions,
2040 ..
2041 })) = editor.context_menu.borrow().as_ref()
2042 {
2043 actions
2044 .tasks
2045 .as_ref()
2046 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2047 .or(*deployed_from_indicator)
2048 } else {
2049 None
2050 };
2051
2052 let offset_range_start =
2053 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2054
2055 let offset_range_end =
2056 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2057
2058 editor
2059 .tasks
2060 .iter()
2061 .filter_map(|(_, tasks)| {
2062 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2063 if multibuffer_point < offset_range_start
2064 || multibuffer_point > offset_range_end
2065 {
2066 return None;
2067 }
2068 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2069 let buffer_folded = snapshot
2070 .buffer_snapshot
2071 .buffer_line_for_row(multibuffer_row)
2072 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2073 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2074 .unwrap_or(false);
2075 if buffer_folded {
2076 return None;
2077 }
2078
2079 if snapshot.is_line_folded(multibuffer_row) {
2080 // Skip folded indicators, unless it's the starting line of a fold.
2081 if multibuffer_row
2082 .0
2083 .checked_sub(1)
2084 .map_or(false, |previous_row| {
2085 snapshot.is_line_folded(MultiBufferRow(previous_row))
2086 })
2087 {
2088 return None;
2089 }
2090 }
2091 let display_row = multibuffer_point.to_display_point(snapshot).row();
2092 if row_infos
2093 .get((display_row - range.start).0 as usize)
2094 .is_some_and(|row_info| row_info.expand_info.is_some())
2095 {
2096 return None;
2097 }
2098 let button = editor.render_run_indicator(
2099 &self.style,
2100 Some(display_row) == active_task_indicator_row,
2101 display_row,
2102 cx,
2103 );
2104
2105 let button = prepaint_gutter_button(
2106 button,
2107 display_row,
2108 line_height,
2109 gutter_dimensions,
2110 scroll_pixel_position,
2111 gutter_hitbox,
2112 display_hunks,
2113 window,
2114 cx,
2115 );
2116 Some(button)
2117 })
2118 .collect_vec()
2119 })
2120 }
2121
2122 fn layout_excerpt_gutter(
2123 &self,
2124 gutter_hitbox: &Hitbox,
2125 line_height: Pixels,
2126 scroll_position: gpui::Point<f32>,
2127 buffer_rows: &[RowInfo],
2128 window: &mut Window,
2129 cx: &mut App,
2130 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2131 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2132
2133 let icon_size = editor_font_size.round();
2134 let button_h_padding = ((icon_size - px(1.0)) / 2.0).round() - px(2.0);
2135
2136 let scroll_top = scroll_position.y * line_height;
2137
2138 let max_line_number_length = 1 + self
2139 .editor
2140 .read(cx)
2141 .buffer()
2142 .read(cx)
2143 .snapshot(cx)
2144 .widest_line_number()
2145 .ilog10();
2146
2147 let elements = buffer_rows
2148 .into_iter()
2149 .enumerate()
2150 .map(|(ix, row_info)| {
2151 let ExpandInfo {
2152 excerpt_id,
2153 direction,
2154 } = row_info.expand_info?;
2155
2156 let icon_name = match direction {
2157 ExpandExcerptDirection::Up => IconName::ExpandUp,
2158 ExpandExcerptDirection::Down => IconName::ExpandDown,
2159 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2160 };
2161
2162 let editor = self.editor.clone();
2163 let is_wide = max_line_number_length > 3
2164 && row_info
2165 .buffer_row
2166 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length);
2167
2168 let toggle = IconButton::new(("expand", ix), icon_name)
2169 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2170 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2171 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2172 .width((icon_size + button_h_padding * 2).into())
2173 .when(is_wide, |el| {
2174 el.width((icon_size + button_h_padding).into())
2175 })
2176 .on_click(move |_, _, cx| {
2177 editor.update(cx, |editor, cx| {
2178 editor.expand_excerpt(excerpt_id, direction, cx);
2179 });
2180 })
2181 .tooltip(Tooltip::for_action_title(
2182 "Expand excerpt",
2183 &crate::actions::ExpandExcerpts::default(),
2184 ))
2185 .into_any_element();
2186
2187 let position = point(
2188 px(1.),
2189 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2190 );
2191 let origin = gutter_hitbox.origin + position;
2192
2193 Some((toggle, origin))
2194 })
2195 .collect();
2196
2197 elements
2198 }
2199
2200 fn layout_code_actions_indicator(
2201 &self,
2202 line_height: Pixels,
2203 newest_selection_head: DisplayPoint,
2204 scroll_pixel_position: gpui::Point<Pixels>,
2205 gutter_dimensions: &GutterDimensions,
2206 gutter_hitbox: &Hitbox,
2207 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2208 window: &mut Window,
2209 cx: &mut App,
2210 ) -> Option<AnyElement> {
2211 let mut active = false;
2212 let mut button = None;
2213 let row = newest_selection_head.row();
2214 self.editor.update(cx, |editor, cx| {
2215 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2216 deployed_from_indicator,
2217 ..
2218 })) = editor.context_menu.borrow().as_ref()
2219 {
2220 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2221 };
2222 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2223 });
2224
2225 let button = prepaint_gutter_button(
2226 button?,
2227 row,
2228 line_height,
2229 gutter_dimensions,
2230 scroll_pixel_position,
2231 gutter_hitbox,
2232 display_hunks,
2233 window,
2234 cx,
2235 );
2236
2237 Some(button)
2238 }
2239
2240 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2241 if let Some(index) = participant_index {
2242 cx.theme().players().color_for_participant(index.0)
2243 } else {
2244 cx.theme().players().absent()
2245 }
2246 }
2247
2248 fn calculate_relative_line_numbers(
2249 &self,
2250 snapshot: &EditorSnapshot,
2251 rows: &Range<DisplayRow>,
2252 relative_to: Option<DisplayRow>,
2253 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2254 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2255 let Some(relative_to) = relative_to else {
2256 return relative_rows;
2257 };
2258
2259 let start = rows.start.min(relative_to);
2260 let end = rows.end.max(relative_to);
2261
2262 let buffer_rows = snapshot
2263 .row_infos(start)
2264 .take(1 + end.minus(start) as usize)
2265 .collect::<Vec<_>>();
2266
2267 let head_idx = relative_to.minus(start);
2268 let mut delta = 1;
2269 let mut i = head_idx + 1;
2270 while i < buffer_rows.len() as u32 {
2271 if buffer_rows[i as usize].buffer_row.is_some() {
2272 if rows.contains(&DisplayRow(i + start.0)) {
2273 relative_rows.insert(DisplayRow(i + start.0), delta);
2274 }
2275 delta += 1;
2276 }
2277 i += 1;
2278 }
2279 delta = 1;
2280 i = head_idx.min(buffer_rows.len() as u32 - 1);
2281 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2282 i -= 1;
2283 }
2284
2285 while i > 0 {
2286 i -= 1;
2287 if buffer_rows[i as usize].buffer_row.is_some() {
2288 if rows.contains(&DisplayRow(i + start.0)) {
2289 relative_rows.insert(DisplayRow(i + start.0), delta);
2290 }
2291 delta += 1;
2292 }
2293 }
2294
2295 relative_rows
2296 }
2297
2298 fn layout_line_numbers(
2299 &self,
2300 gutter_hitbox: Option<&Hitbox>,
2301 gutter_dimensions: GutterDimensions,
2302 line_height: Pixels,
2303 scroll_position: gpui::Point<f32>,
2304 rows: Range<DisplayRow>,
2305 buffer_rows: &[RowInfo],
2306 newest_selection_head: Option<DisplayPoint>,
2307 snapshot: &EditorSnapshot,
2308 window: &mut Window,
2309 cx: &mut App,
2310 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2311 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2312 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2313 });
2314 if !include_line_numbers {
2315 return Arc::default();
2316 }
2317
2318 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2319 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2320 let newest = editor.selections.newest::<Point>(cx);
2321 SelectionLayout::new(
2322 newest,
2323 editor.selections.line_mode,
2324 editor.cursor_shape,
2325 &snapshot.display_snapshot,
2326 true,
2327 true,
2328 None,
2329 )
2330 .head
2331 });
2332 let is_relative = editor.should_use_relative_line_numbers(cx);
2333 (newest_selection_head, is_relative)
2334 });
2335
2336 let relative_to = if is_relative {
2337 Some(newest_selection_head.row())
2338 } else {
2339 None
2340 };
2341 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2342 let mut line_number = String::new();
2343 let line_numbers = buffer_rows
2344 .into_iter()
2345 .enumerate()
2346 .flat_map(|(ix, row_info)| {
2347 let display_row = DisplayRow(rows.start.0 + ix as u32);
2348 line_number.clear();
2349 let non_relative_number = row_info.buffer_row? + 1;
2350 let number = relative_rows
2351 .get(&display_row)
2352 .unwrap_or(&non_relative_number);
2353 write!(&mut line_number, "{number}").unwrap();
2354 if row_info
2355 .diff_status
2356 .is_some_and(|status| status.is_deleted())
2357 {
2358 return None;
2359 }
2360
2361 let color = cx.theme().colors().editor_line_number;
2362 let shaped_line = self
2363 .shape_line_number(SharedString::from(&line_number), color, window)
2364 .log_err()?;
2365 let scroll_top = scroll_position.y * line_height;
2366 let line_origin = gutter_hitbox.map(|hitbox| {
2367 hitbox.origin
2368 + point(
2369 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2370 ix as f32 * line_height - (scroll_top % line_height),
2371 )
2372 });
2373
2374 #[cfg(not(test))]
2375 let hitbox = line_origin.map(|line_origin| {
2376 window.insert_hitbox(
2377 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2378 false,
2379 )
2380 });
2381 #[cfg(test)]
2382 let hitbox = {
2383 let _ = line_origin;
2384 None
2385 };
2386
2387 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2388 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2389 let line_number = LineNumberLayout {
2390 shaped_line,
2391 hitbox,
2392 display_row,
2393 };
2394 Some((multi_buffer_row, line_number))
2395 })
2396 .collect();
2397 Arc::new(line_numbers)
2398 }
2399
2400 fn layout_crease_toggles(
2401 &self,
2402 rows: Range<DisplayRow>,
2403 row_infos: &[RowInfo],
2404 active_rows: &BTreeMap<DisplayRow, bool>,
2405 snapshot: &EditorSnapshot,
2406 window: &mut Window,
2407 cx: &mut App,
2408 ) -> Vec<Option<AnyElement>> {
2409 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2410 && snapshot.mode == EditorMode::Full
2411 && self.editor.read(cx).is_singleton(cx);
2412 if include_fold_statuses {
2413 row_infos
2414 .into_iter()
2415 .enumerate()
2416 .map(|(ix, info)| {
2417 if info.expand_info.is_some() {
2418 return None;
2419 }
2420 let row = info.multibuffer_row?;
2421 let display_row = DisplayRow(rows.start.0 + ix as u32);
2422 let active = active_rows.contains_key(&display_row);
2423
2424 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2425 })
2426 .collect()
2427 } else {
2428 Vec::new()
2429 }
2430 }
2431
2432 fn layout_crease_trailers(
2433 &self,
2434 buffer_rows: impl IntoIterator<Item = RowInfo>,
2435 snapshot: &EditorSnapshot,
2436 window: &mut Window,
2437 cx: &mut App,
2438 ) -> Vec<Option<AnyElement>> {
2439 buffer_rows
2440 .into_iter()
2441 .map(|row_info| {
2442 if row_info.expand_info.is_some() {
2443 return None;
2444 }
2445 if let Some(row) = row_info.multibuffer_row {
2446 snapshot.render_crease_trailer(row, window, cx)
2447 } else {
2448 None
2449 }
2450 })
2451 .collect()
2452 }
2453
2454 fn layout_lines(
2455 rows: Range<DisplayRow>,
2456 snapshot: &EditorSnapshot,
2457 style: &EditorStyle,
2458 editor_width: Pixels,
2459 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2460 window: &mut Window,
2461 cx: &mut App,
2462 ) -> Vec<LineWithInvisibles> {
2463 if rows.start >= rows.end {
2464 return Vec::new();
2465 }
2466
2467 // Show the placeholder when the editor is empty
2468 if snapshot.is_empty() {
2469 let font_size = style.text.font_size.to_pixels(window.rem_size());
2470 let placeholder_color = cx.theme().colors().text_placeholder;
2471 let placeholder_text = snapshot.placeholder_text();
2472
2473 let placeholder_lines = placeholder_text
2474 .as_ref()
2475 .map_or("", AsRef::as_ref)
2476 .split('\n')
2477 .skip(rows.start.0 as usize)
2478 .chain(iter::repeat(""))
2479 .take(rows.len());
2480 placeholder_lines
2481 .filter_map(move |line| {
2482 let run = TextRun {
2483 len: line.len(),
2484 font: style.text.font(),
2485 color: placeholder_color,
2486 background_color: None,
2487 underline: Default::default(),
2488 strikethrough: None,
2489 };
2490 window
2491 .text_system()
2492 .shape_line(line.to_string().into(), font_size, &[run])
2493 .log_err()
2494 })
2495 .map(|line| LineWithInvisibles {
2496 width: line.width,
2497 len: line.len,
2498 fragments: smallvec![LineFragment::Text(line)],
2499 invisibles: Vec::new(),
2500 font_size,
2501 })
2502 .collect()
2503 } else {
2504 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2505 LineWithInvisibles::from_chunks(
2506 chunks,
2507 &style,
2508 MAX_LINE_LEN,
2509 rows.len(),
2510 snapshot.mode,
2511 editor_width,
2512 is_row_soft_wrapped,
2513 window,
2514 cx,
2515 )
2516 }
2517 }
2518
2519 fn prepaint_lines(
2520 &self,
2521 start_row: DisplayRow,
2522 line_layouts: &mut [LineWithInvisibles],
2523 line_height: Pixels,
2524 scroll_pixel_position: gpui::Point<Pixels>,
2525 content_origin: gpui::Point<Pixels>,
2526 window: &mut Window,
2527 cx: &mut App,
2528 ) -> SmallVec<[AnyElement; 1]> {
2529 let mut line_elements = SmallVec::new();
2530 for (ix, line) in line_layouts.iter_mut().enumerate() {
2531 let row = start_row + DisplayRow(ix as u32);
2532 line.prepaint(
2533 line_height,
2534 scroll_pixel_position,
2535 row,
2536 content_origin,
2537 &mut line_elements,
2538 window,
2539 cx,
2540 );
2541 }
2542 line_elements
2543 }
2544
2545 fn render_block(
2546 &self,
2547 block: &Block,
2548 available_width: AvailableSpace,
2549 block_id: BlockId,
2550 block_row_start: DisplayRow,
2551 snapshot: &EditorSnapshot,
2552 text_x: Pixels,
2553 rows: &Range<DisplayRow>,
2554 line_layouts: &[LineWithInvisibles],
2555 gutter_dimensions: &GutterDimensions,
2556 line_height: Pixels,
2557 em_width: Pixels,
2558 text_hitbox: &Hitbox,
2559 editor_width: Pixels,
2560 scroll_width: &mut Pixels,
2561 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2562 selections: &[Selection<Point>],
2563 selected_buffer_ids: &Vec<BufferId>,
2564 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2565 sticky_header_excerpt_id: Option<ExcerptId>,
2566 window: &mut Window,
2567 cx: &mut App,
2568 ) -> (AnyElement, Size<Pixels>) {
2569 let mut element = match block {
2570 Block::Custom(block) => {
2571 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2572 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2573 let align_to = block_start.to_display_point(snapshot);
2574 let anchor_x = text_x
2575 + if rows.contains(&align_to.row()) {
2576 line_layouts[align_to.row().minus(rows.start) as usize]
2577 .x_for_index(align_to.column() as usize)
2578 } else {
2579 layout_line(
2580 align_to.row(),
2581 snapshot,
2582 &self.style,
2583 editor_width,
2584 is_row_soft_wrapped,
2585 window,
2586 cx,
2587 )
2588 .x_for_index(align_to.column() as usize)
2589 };
2590
2591 let selected = selections
2592 .binary_search_by(|selection| {
2593 if selection.end <= block_start {
2594 Ordering::Less
2595 } else if selection.start >= block_end {
2596 Ordering::Greater
2597 } else {
2598 Ordering::Equal
2599 }
2600 })
2601 .is_ok();
2602
2603 div()
2604 .size_full()
2605 .child(block.render(&mut BlockContext {
2606 window,
2607 app: cx,
2608 anchor_x,
2609 gutter_dimensions,
2610 line_height,
2611 em_width,
2612 block_id,
2613 selected,
2614 max_width: text_hitbox.size.width.max(*scroll_width),
2615 editor_style: &self.style,
2616 }))
2617 .into_any()
2618 }
2619
2620 Block::FoldedBuffer {
2621 first_excerpt,
2622 height,
2623 ..
2624 } => {
2625 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2626 let result = v_flex().id(block_id).w_full();
2627
2628 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2629 result
2630 .child(self.render_buffer_header(
2631 first_excerpt,
2632 true,
2633 selected,
2634 false,
2635 jump_data,
2636 window,
2637 cx,
2638 ))
2639 .into_any_element()
2640 }
2641
2642 Block::ExcerptBoundary {
2643 excerpt,
2644 height,
2645 starts_new_buffer,
2646 ..
2647 } => {
2648 let color = cx.theme().colors().clone();
2649 let mut result = v_flex().id(block_id).w_full();
2650
2651 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2652
2653 if *starts_new_buffer {
2654 if sticky_header_excerpt_id != Some(excerpt.id) {
2655 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2656
2657 result = result.child(self.render_buffer_header(
2658 excerpt, false, selected, false, jump_data, window, cx,
2659 ));
2660 } else {
2661 result =
2662 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2663 }
2664 } else {
2665 result = result.child(
2666 h_flex().relative().child(
2667 div()
2668 .top(line_height / 2.)
2669 .absolute()
2670 .w_full()
2671 .h_px()
2672 .bg(color.border_variant),
2673 ),
2674 );
2675 };
2676
2677 result.into_any()
2678 }
2679 };
2680
2681 // Discover the element's content height, then round up to the nearest multiple of line height.
2682 let preliminary_size = element.layout_as_root(
2683 size(available_width, AvailableSpace::MinContent),
2684 window,
2685 cx,
2686 );
2687 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2688 let final_size = if preliminary_size.height == quantized_height {
2689 preliminary_size
2690 } else {
2691 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2692 };
2693
2694 if let BlockId::Custom(custom_block_id) = block_id {
2695 if block.height() > 0 {
2696 let element_height_in_lines =
2697 ((final_size.height / line_height).ceil() as u32).max(1);
2698 if element_height_in_lines != block.height() {
2699 resized_blocks.insert(custom_block_id, element_height_in_lines);
2700 }
2701 }
2702 }
2703
2704 (element, final_size)
2705 }
2706
2707 fn render_buffer_header(
2708 &self,
2709 for_excerpt: &ExcerptInfo,
2710 is_folded: bool,
2711 is_selected: bool,
2712 _is_sticky: bool,
2713 jump_data: JumpData,
2714 window: &mut Window,
2715 cx: &mut App,
2716 ) -> Div {
2717 let editor = self.editor.read(cx);
2718 let file_status = editor
2719 .buffer
2720 .read(cx)
2721 .all_diff_hunks_expanded()
2722 .then(|| {
2723 editor
2724 .project
2725 .as_ref()?
2726 .read(cx)
2727 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2728 })
2729 .flatten();
2730
2731 let include_root = editor
2732 .project
2733 .as_ref()
2734 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2735 .unwrap_or_default();
2736 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2737 let filename = path
2738 .as_ref()
2739 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2740 let parent_path = path.as_ref().and_then(|path| {
2741 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2742 });
2743 let focus_handle = editor.focus_handle(cx);
2744 let colors = cx.theme().colors();
2745
2746 div()
2747 .px_2()
2748 .pt_2()
2749 .w_full()
2750 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2751 .child(
2752 h_flex()
2753 .size_full()
2754 .gap_2()
2755 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2756 .pl_0p5()
2757 .pr_5()
2758 .rounded_sm()
2759 // .when(is_sticky, |el| el.shadow_md())
2760 .border_1()
2761 .map(|div| {
2762 let border_color = if is_selected
2763 && is_folded
2764 && focus_handle.contains_focused(window, cx)
2765 {
2766 colors.border_focused
2767 } else {
2768 colors.border
2769 };
2770 div.border_color(border_color)
2771 })
2772 .bg(colors.editor_subheader_background)
2773 .hover(|style| style.bg(colors.element_hover))
2774 .map(|header| {
2775 let editor = self.editor.clone();
2776 let buffer_id = for_excerpt.buffer_id;
2777 let toggle_chevron_icon =
2778 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2779 header.child(
2780 div()
2781 .hover(|style| style.bg(colors.element_selected))
2782 .rounded_xs()
2783 .child(
2784 ButtonLike::new("toggle-buffer-fold")
2785 .style(ui::ButtonStyle::Transparent)
2786 .size(ButtonSize::Large)
2787 .width(px(30.).into())
2788 .children(toggle_chevron_icon)
2789 .tooltip({
2790 let focus_handle = focus_handle.clone();
2791 move |window, cx| {
2792 Tooltip::for_action_in(
2793 "Toggle Excerpt Fold",
2794 &ToggleFold,
2795 &focus_handle,
2796 window,
2797 cx,
2798 )
2799 }
2800 })
2801 .on_click(move |_, _, cx| {
2802 if is_folded {
2803 editor.update(cx, |editor, cx| {
2804 editor.unfold_buffer(buffer_id, cx);
2805 });
2806 } else {
2807 editor.update(cx, |editor, cx| {
2808 editor.fold_buffer(buffer_id, cx);
2809 });
2810 }
2811 }),
2812 ),
2813 )
2814 })
2815 .children(
2816 editor
2817 .addons
2818 .values()
2819 .filter_map(|addon| {
2820 addon.render_buffer_header_controls(for_excerpt, window, cx)
2821 })
2822 .take(1),
2823 )
2824 .child(
2825 h_flex()
2826 .cursor_pointer()
2827 .id("path header block")
2828 .size_full()
2829 .justify_between()
2830 .child(
2831 h_flex()
2832 .gap_2()
2833 .child(
2834 Label::new(
2835 filename
2836 .map(SharedString::from)
2837 .unwrap_or_else(|| "untitled".into()),
2838 )
2839 .single_line()
2840 .when_some(
2841 file_status,
2842 |el, status| {
2843 el.color(if status.is_conflicted() {
2844 Color::Conflict
2845 } else if status.is_modified() {
2846 Color::Modified
2847 } else if status.is_deleted() {
2848 Color::Disabled
2849 } else {
2850 Color::Created
2851 })
2852 .when(status.is_deleted(), |el| el.strikethrough())
2853 },
2854 ),
2855 )
2856 .when_some(parent_path, |then, path| {
2857 then.child(div().child(path).text_color(
2858 if file_status.is_some_and(FileStatus::is_deleted) {
2859 colors.text_disabled
2860 } else {
2861 colors.text_muted
2862 },
2863 ))
2864 }),
2865 )
2866 .when(is_selected, |el| {
2867 el.child(
2868 h_flex()
2869 .id("jump-to-file-button")
2870 .gap_2p5()
2871 .child(Label::new("Jump To File"))
2872 .children(
2873 KeyBinding::for_action_in(
2874 &OpenExcerpts,
2875 &focus_handle,
2876 window,
2877 cx,
2878 )
2879 .map(|binding| binding.into_any_element()),
2880 ),
2881 )
2882 })
2883 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2884 .on_click(window.listener_for(&self.editor, {
2885 move |editor, e: &ClickEvent, window, cx| {
2886 editor.open_excerpts_common(
2887 Some(jump_data.clone()),
2888 e.down.modifiers.secondary(),
2889 window,
2890 cx,
2891 );
2892 }
2893 })),
2894 ),
2895 )
2896 }
2897
2898 fn render_blocks(
2899 &self,
2900 rows: Range<DisplayRow>,
2901 snapshot: &EditorSnapshot,
2902 hitbox: &Hitbox,
2903 text_hitbox: &Hitbox,
2904 editor_width: Pixels,
2905 scroll_width: &mut Pixels,
2906 gutter_dimensions: &GutterDimensions,
2907 em_width: Pixels,
2908 text_x: Pixels,
2909 line_height: Pixels,
2910 line_layouts: &[LineWithInvisibles],
2911 selections: &[Selection<Point>],
2912 selected_buffer_ids: &Vec<BufferId>,
2913 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2914 sticky_header_excerpt_id: Option<ExcerptId>,
2915 window: &mut Window,
2916 cx: &mut App,
2917 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2918 let (fixed_blocks, non_fixed_blocks) = snapshot
2919 .blocks_in_range(rows.clone())
2920 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2921
2922 let mut focused_block = self
2923 .editor
2924 .update(cx, |editor, _| editor.take_focused_block());
2925 let mut fixed_block_max_width = Pixels::ZERO;
2926 let mut blocks = Vec::new();
2927 let mut resized_blocks = HashMap::default();
2928
2929 for (row, block) in fixed_blocks {
2930 let block_id = block.id();
2931
2932 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2933 focused_block = None;
2934 }
2935
2936 let (element, element_size) = self.render_block(
2937 block,
2938 AvailableSpace::MinContent,
2939 block_id,
2940 row,
2941 snapshot,
2942 text_x,
2943 &rows,
2944 line_layouts,
2945 gutter_dimensions,
2946 line_height,
2947 em_width,
2948 text_hitbox,
2949 editor_width,
2950 scroll_width,
2951 &mut resized_blocks,
2952 selections,
2953 selected_buffer_ids,
2954 is_row_soft_wrapped,
2955 sticky_header_excerpt_id,
2956 window,
2957 cx,
2958 );
2959 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2960 blocks.push(BlockLayout {
2961 id: block_id,
2962 row: Some(row),
2963 element,
2964 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2965 style: BlockStyle::Fixed,
2966 is_buffer_header: block.is_buffer_header(),
2967 });
2968 }
2969
2970 for (row, block) in non_fixed_blocks {
2971 let style = block.style();
2972 let width = match style {
2973 BlockStyle::Sticky => hitbox.size.width,
2974 BlockStyle::Flex => hitbox
2975 .size
2976 .width
2977 .max(fixed_block_max_width)
2978 .max(gutter_dimensions.width + *scroll_width),
2979 BlockStyle::Fixed => unreachable!(),
2980 };
2981 let block_id = block.id();
2982
2983 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2984 focused_block = None;
2985 }
2986
2987 let (element, element_size) = self.render_block(
2988 block,
2989 width.into(),
2990 block_id,
2991 row,
2992 snapshot,
2993 text_x,
2994 &rows,
2995 line_layouts,
2996 gutter_dimensions,
2997 line_height,
2998 em_width,
2999 text_hitbox,
3000 editor_width,
3001 scroll_width,
3002 &mut resized_blocks,
3003 selections,
3004 selected_buffer_ids,
3005 is_row_soft_wrapped,
3006 sticky_header_excerpt_id,
3007 window,
3008 cx,
3009 );
3010
3011 blocks.push(BlockLayout {
3012 id: block_id,
3013 row: Some(row),
3014 element,
3015 available_space: size(width.into(), element_size.height.into()),
3016 style,
3017 is_buffer_header: block.is_buffer_header(),
3018 });
3019 }
3020
3021 if let Some(focused_block) = focused_block {
3022 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3023 if focus_handle.is_focused(window) {
3024 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3025 let style = block.style();
3026 let width = match style {
3027 BlockStyle::Fixed => AvailableSpace::MinContent,
3028 BlockStyle::Flex => AvailableSpace::Definite(
3029 hitbox
3030 .size
3031 .width
3032 .max(fixed_block_max_width)
3033 .max(gutter_dimensions.width + *scroll_width),
3034 ),
3035 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3036 };
3037
3038 let (element, element_size) = self.render_block(
3039 &block,
3040 width,
3041 focused_block.id,
3042 rows.end,
3043 snapshot,
3044 text_x,
3045 &rows,
3046 line_layouts,
3047 gutter_dimensions,
3048 line_height,
3049 em_width,
3050 text_hitbox,
3051 editor_width,
3052 scroll_width,
3053 &mut resized_blocks,
3054 selections,
3055 selected_buffer_ids,
3056 is_row_soft_wrapped,
3057 sticky_header_excerpt_id,
3058 window,
3059 cx,
3060 );
3061
3062 blocks.push(BlockLayout {
3063 id: block.id(),
3064 row: None,
3065 element,
3066 available_space: size(width, element_size.height.into()),
3067 style,
3068 is_buffer_header: block.is_buffer_header(),
3069 });
3070 }
3071 }
3072 }
3073 }
3074
3075 if resized_blocks.is_empty() {
3076 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3077 Ok(blocks)
3078 } else {
3079 Err(resized_blocks)
3080 }
3081 }
3082
3083 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3084 /// a restart of rendering for the editor based on the new sizes.
3085 fn layout_blocks(
3086 &self,
3087 blocks: &mut Vec<BlockLayout>,
3088 block_starts: &mut HashSet<DisplayRow>,
3089 hitbox: &Hitbox,
3090 line_height: Pixels,
3091 scroll_pixel_position: gpui::Point<Pixels>,
3092 window: &mut Window,
3093 cx: &mut App,
3094 ) {
3095 for block in blocks {
3096 let mut origin = if let Some(row) = block.row {
3097 block_starts.insert(row);
3098 hitbox.origin
3099 + point(
3100 Pixels::ZERO,
3101 row.as_f32() * line_height - scroll_pixel_position.y,
3102 )
3103 } else {
3104 // Position the block outside the visible area
3105 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3106 };
3107
3108 if !matches!(block.style, BlockStyle::Sticky) {
3109 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3110 }
3111
3112 let focus_handle =
3113 block
3114 .element
3115 .prepaint_as_root(origin, block.available_space, window, cx);
3116
3117 if let Some(focus_handle) = focus_handle {
3118 self.editor.update(cx, |editor, _cx| {
3119 editor.set_focused_block(FocusedBlock {
3120 id: block.id,
3121 focus_handle: focus_handle.downgrade(),
3122 });
3123 });
3124 }
3125 }
3126 }
3127
3128 fn layout_sticky_buffer_header(
3129 &self,
3130 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3131 scroll_position: f32,
3132 line_height: Pixels,
3133 snapshot: &EditorSnapshot,
3134 hitbox: &Hitbox,
3135 selected_buffer_ids: &Vec<BufferId>,
3136 blocks: &[BlockLayout],
3137 window: &mut Window,
3138 cx: &mut App,
3139 ) -> AnyElement {
3140 let jump_data = header_jump_data(
3141 snapshot,
3142 DisplayRow(scroll_position as u32),
3143 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3144 excerpt,
3145 );
3146
3147 let editor_bg_color = cx.theme().colors().editor_background;
3148
3149 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3150
3151 let mut header = v_flex()
3152 .relative()
3153 .child(
3154 div()
3155 .w(hitbox.bounds.size.width)
3156 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3157 .bg(linear_gradient(
3158 0.,
3159 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3160 linear_color_stop(editor_bg_color, 0.6),
3161 ))
3162 .absolute()
3163 .top_0(),
3164 )
3165 .child(
3166 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3167 .into_any_element(),
3168 )
3169 .into_any_element();
3170
3171 let mut origin = hitbox.origin;
3172 // Move floating header up to avoid colliding with the next buffer header.
3173 for block in blocks.iter() {
3174 if !block.is_buffer_header {
3175 continue;
3176 }
3177
3178 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3179 continue;
3180 };
3181
3182 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3183 let offset = scroll_position - max_row as f32;
3184
3185 if offset > 0.0 {
3186 origin.y -= Pixels(offset) * line_height;
3187 }
3188 break;
3189 }
3190
3191 let size = size(
3192 AvailableSpace::Definite(hitbox.size.width),
3193 AvailableSpace::MinContent,
3194 );
3195
3196 header.prepaint_as_root(origin, size, window, cx);
3197
3198 header
3199 }
3200
3201 fn layout_cursor_popovers(
3202 &self,
3203 line_height: Pixels,
3204 text_hitbox: &Hitbox,
3205 content_origin: gpui::Point<Pixels>,
3206 start_row: DisplayRow,
3207 scroll_pixel_position: gpui::Point<Pixels>,
3208 line_layouts: &[LineWithInvisibles],
3209 cursor: DisplayPoint,
3210 cursor_point: Point,
3211 style: &EditorStyle,
3212 window: &mut Window,
3213 cx: &mut App,
3214 ) {
3215 let mut min_menu_height = Pixels::ZERO;
3216 let mut max_menu_height = Pixels::ZERO;
3217 let mut height_above_menu = Pixels::ZERO;
3218 let height_below_menu = Pixels::ZERO;
3219 let mut edit_prediction_popover_visible = false;
3220 let mut context_menu_visible = false;
3221
3222 {
3223 let editor = self.editor.read(cx);
3224 if editor
3225 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3226 {
3227 height_above_menu +=
3228 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3229 edit_prediction_popover_visible = true;
3230 }
3231
3232 if editor.context_menu_visible() {
3233 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3234 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3235 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3236 context_menu_visible = true;
3237 }
3238 }
3239 }
3240
3241 let visible = edit_prediction_popover_visible || context_menu_visible;
3242 if !visible {
3243 return;
3244 }
3245
3246 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3247 let target_position = content_origin
3248 + gpui::Point {
3249 x: cmp::max(
3250 px(0.),
3251 cursor_row_layout.x_for_index(cursor.column() as usize)
3252 - scroll_pixel_position.x,
3253 ),
3254 y: cmp::max(
3255 px(0.),
3256 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3257 ),
3258 };
3259
3260 let viewport_bounds =
3261 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3262 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3263 ..Default::default()
3264 });
3265
3266 let min_height = height_above_menu + min_menu_height + height_below_menu;
3267 let max_height = height_above_menu + max_menu_height + height_below_menu;
3268 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3269 target_position,
3270 line_height,
3271 min_height,
3272 max_height,
3273 text_hitbox,
3274 viewport_bounds,
3275 window,
3276 cx,
3277 |height, max_width_for_stable_x, y_flipped, window, cx| {
3278 // First layout the menu to get its size - others can be at least this wide.
3279 let context_menu = if context_menu_visible {
3280 let menu_height = if y_flipped {
3281 height - height_below_menu
3282 } else {
3283 height - height_above_menu
3284 };
3285 let mut element = self
3286 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3287 .expect("Visible context menu should always render.");
3288 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3289 Some((CursorPopoverType::CodeContextMenu, element, size))
3290 } else {
3291 None
3292 };
3293 let min_width = context_menu
3294 .as_ref()
3295 .map_or(px(0.), |(_, _, size)| size.width);
3296 let max_width = max_width_for_stable_x.max(
3297 context_menu
3298 .as_ref()
3299 .map_or(px(0.), |(_, _, size)| size.width),
3300 );
3301
3302 let edit_prediction = if edit_prediction_popover_visible {
3303 self.editor.update(cx, move |editor, cx| {
3304 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3305 let mut element = editor.render_edit_prediction_cursor_popover(
3306 min_width,
3307 max_width,
3308 cursor_point,
3309 style,
3310 accept_binding.keystroke(),
3311 window,
3312 cx,
3313 )?;
3314 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3315 Some((CursorPopoverType::EditPrediction, element, size))
3316 })
3317 } else {
3318 None
3319 };
3320 vec![edit_prediction, context_menu]
3321 .into_iter()
3322 .flatten()
3323 .collect::<Vec<_>>()
3324 },
3325 ) else {
3326 return;
3327 };
3328
3329 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3330 .iter()
3331 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3332 else {
3333 return;
3334 };
3335 let last_ix = laid_out_popovers.len() - 1;
3336 let menu_is_last = menu_ix == last_ix;
3337 let first_popover_bounds = laid_out_popovers[0].1;
3338 let last_popover_bounds = laid_out_popovers[last_ix].1;
3339
3340 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3341 // right, and otherwise it goes below or to the right.
3342 let mut target_bounds = Bounds::from_corners(
3343 first_popover_bounds.origin,
3344 last_popover_bounds.bottom_right(),
3345 );
3346 target_bounds.size.width = menu_bounds.size.width;
3347
3348 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3349 // based on this is preferred for layout stability.
3350 let mut max_target_bounds = target_bounds;
3351 max_target_bounds.size.height = max_height;
3352 if y_flipped {
3353 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3354 }
3355
3356 // Add spacing around `target_bounds` and `max_target_bounds`.
3357 let mut extend_amount = Edges::all(MENU_GAP);
3358 if y_flipped {
3359 extend_amount.bottom = line_height;
3360 } else {
3361 extend_amount.top = line_height;
3362 }
3363 let target_bounds = target_bounds.extend(extend_amount);
3364 let max_target_bounds = max_target_bounds.extend(extend_amount);
3365
3366 let must_place_above_or_below =
3367 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3368 laid_out_popovers[menu_ix + 1..]
3369 .iter()
3370 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3371 } else {
3372 false
3373 };
3374
3375 self.layout_context_menu_aside(
3376 y_flipped,
3377 *menu_bounds,
3378 target_bounds,
3379 max_target_bounds,
3380 max_menu_height,
3381 must_place_above_or_below,
3382 text_hitbox,
3383 viewport_bounds,
3384 window,
3385 cx,
3386 );
3387 }
3388
3389 fn layout_gutter_menu(
3390 &self,
3391 line_height: Pixels,
3392 text_hitbox: &Hitbox,
3393 content_origin: gpui::Point<Pixels>,
3394 scroll_pixel_position: gpui::Point<Pixels>,
3395 gutter_overshoot: Pixels,
3396 window: &mut Window,
3397 cx: &mut App,
3398 ) {
3399 let editor = self.editor.read(cx);
3400 if !editor.context_menu_visible() {
3401 return;
3402 }
3403 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3404 editor.context_menu_origin()
3405 else {
3406 return;
3407 };
3408 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3409 // indicator than just a plain first column of the text field.
3410 let target_position = content_origin
3411 + gpui::Point {
3412 x: -gutter_overshoot,
3413 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3414 };
3415 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3416 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3417 let viewport_bounds =
3418 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3419 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3420 ..Default::default()
3421 });
3422 self.layout_popovers_above_or_below_line(
3423 target_position,
3424 line_height,
3425 min_height,
3426 max_height,
3427 text_hitbox,
3428 viewport_bounds,
3429 window,
3430 cx,
3431 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3432 let mut element = self
3433 .render_context_menu(line_height, height, y_flipped, window, cx)
3434 .expect("Visible context menu should always render.");
3435 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3436 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3437 },
3438 );
3439 }
3440
3441 fn layout_popovers_above_or_below_line(
3442 &self,
3443 target_position: gpui::Point<Pixels>,
3444 line_height: Pixels,
3445 min_height: Pixels,
3446 max_height: Pixels,
3447 text_hitbox: &Hitbox,
3448 viewport_bounds: Bounds<Pixels>,
3449 window: &mut Window,
3450 cx: &mut App,
3451 make_sized_popovers: impl FnOnce(
3452 Pixels,
3453 Pixels,
3454 bool,
3455 &mut Window,
3456 &mut App,
3457 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3458 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3459 let text_style = TextStyleRefinement {
3460 line_height: Some(DefiniteLength::Fraction(
3461 BufferLineHeight::Comfortable.value(),
3462 )),
3463 ..Default::default()
3464 };
3465 window.with_text_style(Some(text_style), |window| {
3466 // If the max height won't fit below and there is more space above, put it above the line.
3467 let bottom_y_when_flipped = target_position.y - line_height;
3468 let available_above = bottom_y_when_flipped - text_hitbox.top();
3469 let available_below = text_hitbox.bottom() - target_position.y;
3470 let y_overflows_below = max_height > available_below;
3471 let mut y_flipped = y_overflows_below && available_above > available_below;
3472 let mut height = cmp::min(
3473 max_height,
3474 if y_flipped {
3475 available_above
3476 } else {
3477 available_below
3478 },
3479 );
3480
3481 // If the min height doesn't fit within text bounds, instead fit within the window.
3482 if height < min_height {
3483 let available_above = bottom_y_when_flipped;
3484 let available_below = viewport_bounds.bottom() - target_position.y;
3485 if available_below > min_height {
3486 y_flipped = false;
3487 height = min_height;
3488 } else if available_above > min_height {
3489 y_flipped = true;
3490 height = min_height;
3491 } else if available_above > available_below {
3492 y_flipped = true;
3493 height = available_above;
3494 } else {
3495 y_flipped = false;
3496 height = available_below;
3497 }
3498 }
3499
3500 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3501
3502 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3503 // for very narrow windows.
3504 let popovers =
3505 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3506 if popovers.is_empty() {
3507 return None;
3508 }
3509
3510 let max_width = popovers
3511 .iter()
3512 .map(|(_, _, size)| size.width)
3513 .max()
3514 .unwrap_or_default();
3515
3516 let mut current_position = gpui::Point {
3517 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3518 // overflow. Include space for the scrollbar.
3519 x: target_position
3520 .x
3521 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3522 y: if y_flipped {
3523 bottom_y_when_flipped
3524 } else {
3525 target_position.y
3526 },
3527 };
3528
3529 let mut laid_out_popovers = popovers
3530 .into_iter()
3531 .map(|(popover_type, element, size)| {
3532 if y_flipped {
3533 current_position.y -= size.height;
3534 }
3535 let position = current_position;
3536 window.defer_draw(element, current_position, 1);
3537 if !y_flipped {
3538 current_position.y += size.height + MENU_GAP;
3539 } else {
3540 current_position.y -= MENU_GAP;
3541 }
3542 (popover_type, Bounds::new(position, size))
3543 })
3544 .collect::<Vec<_>>();
3545
3546 if y_flipped {
3547 laid_out_popovers.reverse();
3548 }
3549
3550 Some((laid_out_popovers, y_flipped))
3551 })
3552 }
3553
3554 fn layout_context_menu_aside(
3555 &self,
3556 y_flipped: bool,
3557 menu_bounds: Bounds<Pixels>,
3558 target_bounds: Bounds<Pixels>,
3559 max_target_bounds: Bounds<Pixels>,
3560 max_height: Pixels,
3561 must_place_above_or_below: bool,
3562 text_hitbox: &Hitbox,
3563 viewport_bounds: Bounds<Pixels>,
3564 window: &mut Window,
3565 cx: &mut App,
3566 ) {
3567 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3568 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3569 && !must_place_above_or_below
3570 {
3571 let max_width = cmp::min(
3572 available_within_viewport.right - px(1.),
3573 MENU_ASIDE_MAX_WIDTH,
3574 );
3575 let Some(mut aside) = self.render_context_menu_aside(
3576 size(max_width, max_height - POPOVER_Y_PADDING),
3577 window,
3578 cx,
3579 ) else {
3580 return;
3581 };
3582 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3583 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3584 Some((aside, right_position))
3585 } else {
3586 let max_size = size(
3587 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3588 // won't be needed here.
3589 cmp::min(
3590 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3591 viewport_bounds.right(),
3592 ),
3593 cmp::min(
3594 max_height,
3595 cmp::max(
3596 available_within_viewport.top,
3597 available_within_viewport.bottom,
3598 ),
3599 ) - POPOVER_Y_PADDING,
3600 );
3601 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3602 return;
3603 };
3604 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3605
3606 let top_position = point(
3607 menu_bounds.origin.x,
3608 target_bounds.top() - actual_size.height,
3609 );
3610 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3611
3612 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3613 // Prefer to fit on the same side of the line as the menu, then on the other side of
3614 // the line.
3615 if !y_flipped && wanted.height < available.bottom {
3616 Some(bottom_position)
3617 } else if !y_flipped && wanted.height < available.top {
3618 Some(top_position)
3619 } else if y_flipped && wanted.height < available.top {
3620 Some(top_position)
3621 } else if y_flipped && wanted.height < available.bottom {
3622 Some(bottom_position)
3623 } else {
3624 None
3625 }
3626 };
3627
3628 // Prefer choosing a direction using max sizes rather than actual size for stability.
3629 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3630 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3631 let aside_position = fit_within(available_within_text, wanted)
3632 // Fallback: fit max size in window.
3633 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3634 // Fallback: fit actual size in window.
3635 .or_else(|| fit_within(available_within_viewport, actual_size));
3636
3637 aside_position.map(|position| (aside, position))
3638 };
3639
3640 // Skip drawing if it doesn't fit anywhere.
3641 if let Some((aside, position)) = positioned_aside {
3642 window.defer_draw(aside, position, 2);
3643 }
3644 }
3645
3646 fn render_context_menu(
3647 &self,
3648 line_height: Pixels,
3649 height: Pixels,
3650 y_flipped: bool,
3651 window: &mut Window,
3652 cx: &mut App,
3653 ) -> Option<AnyElement> {
3654 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3655 self.editor.update(cx, |editor, cx| {
3656 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3657 })
3658 }
3659
3660 fn render_context_menu_aside(
3661 &self,
3662 max_size: Size<Pixels>,
3663 window: &mut Window,
3664 cx: &mut App,
3665 ) -> Option<AnyElement> {
3666 if max_size.width < px(100.) || max_size.height < px(12.) {
3667 None
3668 } else {
3669 self.editor.update(cx, |editor, cx| {
3670 editor.render_context_menu_aside(max_size, window, cx)
3671 })
3672 }
3673 }
3674
3675 fn layout_mouse_context_menu(
3676 &self,
3677 editor_snapshot: &EditorSnapshot,
3678 visible_range: Range<DisplayRow>,
3679 content_origin: gpui::Point<Pixels>,
3680 window: &mut Window,
3681 cx: &mut App,
3682 ) -> Option<AnyElement> {
3683 let position = self.editor.update(cx, |editor, _cx| {
3684 let visible_start_point = editor.display_to_pixel_point(
3685 DisplayPoint::new(visible_range.start, 0),
3686 editor_snapshot,
3687 window,
3688 )?;
3689 let visible_end_point = editor.display_to_pixel_point(
3690 DisplayPoint::new(visible_range.end, 0),
3691 editor_snapshot,
3692 window,
3693 )?;
3694
3695 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3696 let (source_display_point, position) = match mouse_context_menu.position {
3697 MenuPosition::PinnedToScreen(point) => (None, point),
3698 MenuPosition::PinnedToEditor { source, offset } => {
3699 let source_display_point = source.to_display_point(editor_snapshot);
3700 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3701 let position = content_origin + source_point + offset;
3702 (Some(source_display_point), position)
3703 }
3704 };
3705
3706 let source_included = source_display_point.map_or(true, |source_display_point| {
3707 visible_range
3708 .to_inclusive()
3709 .contains(&source_display_point.row())
3710 });
3711 let position_included =
3712 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3713 if !source_included && !position_included {
3714 None
3715 } else {
3716 Some(position)
3717 }
3718 })?;
3719
3720 let text_style = TextStyleRefinement {
3721 line_height: Some(DefiniteLength::Fraction(
3722 BufferLineHeight::Comfortable.value(),
3723 )),
3724 ..Default::default()
3725 };
3726 window.with_text_style(Some(text_style), |window| {
3727 let mut element = self.editor.update(cx, |editor, _| {
3728 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3729 let context_menu = mouse_context_menu.context_menu.clone();
3730
3731 Some(
3732 deferred(
3733 anchored()
3734 .position(position)
3735 .child(context_menu)
3736 .anchor(Corner::TopLeft)
3737 .snap_to_window_with_margin(px(8.)),
3738 )
3739 .with_priority(1)
3740 .into_any(),
3741 )
3742 })?;
3743
3744 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3745 Some(element)
3746 })
3747 }
3748
3749 fn layout_hover_popovers(
3750 &self,
3751 snapshot: &EditorSnapshot,
3752 hitbox: &Hitbox,
3753 text_hitbox: &Hitbox,
3754 visible_display_row_range: Range<DisplayRow>,
3755 content_origin: gpui::Point<Pixels>,
3756 scroll_pixel_position: gpui::Point<Pixels>,
3757 line_layouts: &[LineWithInvisibles],
3758 line_height: Pixels,
3759 em_width: Pixels,
3760 window: &mut Window,
3761 cx: &mut App,
3762 ) {
3763 struct MeasuredHoverPopover {
3764 element: AnyElement,
3765 size: Size<Pixels>,
3766 horizontal_offset: Pixels,
3767 }
3768
3769 let max_size = size(
3770 (120. * em_width) // Default size
3771 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3772 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3773 (16. * line_height) // Default size
3774 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3775 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3776 );
3777
3778 let hover_popovers = self.editor.update(cx, |editor, cx| {
3779 editor
3780 .hover_state
3781 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3782 });
3783 let Some((position, hover_popovers)) = hover_popovers else {
3784 return;
3785 };
3786
3787 // This is safe because we check on layout whether the required row is available
3788 let hovered_row_layout =
3789 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3790
3791 // Compute Hovered Point
3792 let x =
3793 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3794 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3795 let hovered_point = content_origin + point(x, y);
3796
3797 let mut overall_height = Pixels::ZERO;
3798 let mut measured_hover_popovers = Vec::new();
3799 for mut hover_popover in hover_popovers {
3800 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3801 let horizontal_offset =
3802 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3803
3804 overall_height += HOVER_POPOVER_GAP + size.height;
3805
3806 measured_hover_popovers.push(MeasuredHoverPopover {
3807 element: hover_popover,
3808 size,
3809 horizontal_offset,
3810 });
3811 }
3812 overall_height += HOVER_POPOVER_GAP;
3813
3814 fn draw_occluder(
3815 width: Pixels,
3816 origin: gpui::Point<Pixels>,
3817 window: &mut Window,
3818 cx: &mut App,
3819 ) {
3820 let mut occlusion = div()
3821 .size_full()
3822 .occlude()
3823 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3824 .into_any_element();
3825 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3826 window.defer_draw(occlusion, origin, 2);
3827 }
3828
3829 if hovered_point.y > overall_height {
3830 // There is enough space above. Render popovers above the hovered point
3831 let mut current_y = hovered_point.y;
3832 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3833 let size = popover.size;
3834 let popover_origin = point(
3835 hovered_point.x + popover.horizontal_offset,
3836 current_y - size.height,
3837 );
3838
3839 window.defer_draw(popover.element, popover_origin, 2);
3840 if position != itertools::Position::Last {
3841 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3842 draw_occluder(size.width, origin, window, cx);
3843 }
3844
3845 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3846 }
3847 } else {
3848 // There is not enough space above. Render popovers below the hovered point
3849 let mut current_y = hovered_point.y + line_height;
3850 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3851 let size = popover.size;
3852 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3853
3854 window.defer_draw(popover.element, popover_origin, 2);
3855 if position != itertools::Position::Last {
3856 let origin = point(popover_origin.x, popover_origin.y + size.height);
3857 draw_occluder(size.width, origin, window, cx);
3858 }
3859
3860 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3861 }
3862 }
3863 }
3864
3865 fn layout_diff_hunk_controls(
3866 &self,
3867 row_range: Range<DisplayRow>,
3868 row_infos: &[RowInfo],
3869 text_hitbox: &Hitbox,
3870 position_map: &PositionMap,
3871 newest_cursor_position: Option<DisplayPoint>,
3872 line_height: Pixels,
3873 scroll_pixel_position: gpui::Point<Pixels>,
3874 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3875 editor: Entity<Editor>,
3876 window: &mut Window,
3877 cx: &mut App,
3878 ) -> Vec<AnyElement> {
3879 let point_for_position = position_map.point_for_position(window.mouse_position());
3880
3881 let mut controls = vec![];
3882
3883 let active_positions = [
3884 Some(point_for_position.previous_valid),
3885 newest_cursor_position,
3886 ];
3887
3888 for (hunk, _) in display_hunks {
3889 if let DisplayDiffHunk::Unfolded {
3890 display_row_range,
3891 multi_buffer_range,
3892 status,
3893 is_created_file,
3894 ..
3895 } = &hunk
3896 {
3897 if display_row_range.start < row_range.start
3898 || display_row_range.start >= row_range.end
3899 {
3900 continue;
3901 }
3902 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3903 if row_infos[row_ix].diff_status.is_none() {
3904 continue;
3905 }
3906 if row_infos[row_ix]
3907 .diff_status
3908 .is_some_and(|status| status.is_added())
3909 && !status.is_added()
3910 {
3911 continue;
3912 }
3913 if active_positions
3914 .iter()
3915 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3916 {
3917 let y = display_row_range.start.as_f32() * line_height
3918 + text_hitbox.bounds.top()
3919 - scroll_pixel_position.y;
3920
3921 let mut element = diff_hunk_controls(
3922 display_row_range.start.0,
3923 status,
3924 multi_buffer_range.clone(),
3925 *is_created_file,
3926 line_height,
3927 &editor,
3928 cx,
3929 );
3930 let size =
3931 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3932
3933 let x = text_hitbox.bounds.right()
3934 - self.style.scrollbar_width
3935 - px(10.)
3936 - size.width;
3937
3938 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3939 element.prepaint(window, cx)
3940 });
3941 controls.push(element);
3942 }
3943 }
3944 }
3945
3946 controls
3947 }
3948
3949 fn layout_signature_help(
3950 &self,
3951 hitbox: &Hitbox,
3952 content_origin: gpui::Point<Pixels>,
3953 scroll_pixel_position: gpui::Point<Pixels>,
3954 newest_selection_head: Option<DisplayPoint>,
3955 start_row: DisplayRow,
3956 line_layouts: &[LineWithInvisibles],
3957 line_height: Pixels,
3958 em_width: Pixels,
3959 window: &mut Window,
3960 cx: &mut App,
3961 ) {
3962 if !self.editor.focus_handle(cx).is_focused(window) {
3963 return;
3964 }
3965 let Some(newest_selection_head) = newest_selection_head else {
3966 return;
3967 };
3968 let selection_row = newest_selection_head.row();
3969 if selection_row < start_row {
3970 return;
3971 }
3972 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
3973 else {
3974 return;
3975 };
3976
3977 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
3978 - scroll_pixel_position.x
3979 + content_origin.x;
3980 let start_y =
3981 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
3982
3983 let max_size = size(
3984 (120. * em_width) // Default size
3985 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3986 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3987 (16. * line_height) // Default size
3988 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3989 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3990 );
3991
3992 let maybe_element = self.editor.update(cx, |editor, cx| {
3993 if let Some(popover) = editor.signature_help_state.popover_mut() {
3994 let element = popover.render(max_size, cx);
3995 Some(element)
3996 } else {
3997 None
3998 }
3999 });
4000 if let Some(mut element) = maybe_element {
4001 let window_size = window.viewport_size();
4002 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4003 let mut point = point(start_x, start_y - size.height);
4004
4005 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4006 if point.x + size.width >= window_size.width {
4007 point.x = window_size.width - size.width;
4008 }
4009
4010 window.defer_draw(element, point, 1)
4011 }
4012 }
4013
4014 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4015 window.paint_layer(layout.hitbox.bounds, |window| {
4016 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4017 let gutter_bg = cx.theme().colors().editor_gutter_background;
4018 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4019 window.paint_quad(fill(
4020 layout.position_map.text_hitbox.bounds,
4021 self.style.background,
4022 ));
4023
4024 if let EditorMode::Full = layout.mode {
4025 let mut active_rows = layout.active_rows.iter().peekable();
4026 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4027 let mut end_row = start_row.0;
4028 while active_rows
4029 .peek()
4030 .map_or(false, |(active_row, has_selection)| {
4031 active_row.0 == end_row + 1
4032 && *has_selection == contains_non_empty_selection
4033 })
4034 {
4035 active_rows.next().unwrap();
4036 end_row += 1;
4037 }
4038
4039 if !contains_non_empty_selection {
4040 let highlight_h_range =
4041 match layout.position_map.snapshot.current_line_highlight {
4042 CurrentLineHighlight::Gutter => Some(Range {
4043 start: layout.hitbox.left(),
4044 end: layout.gutter_hitbox.right(),
4045 }),
4046 CurrentLineHighlight::Line => Some(Range {
4047 start: layout.position_map.text_hitbox.bounds.left(),
4048 end: layout.position_map.text_hitbox.bounds.right(),
4049 }),
4050 CurrentLineHighlight::All => Some(Range {
4051 start: layout.hitbox.left(),
4052 end: layout.hitbox.right(),
4053 }),
4054 CurrentLineHighlight::None => None,
4055 };
4056 if let Some(range) = highlight_h_range {
4057 let active_line_bg = cx.theme().colors().editor_active_line_background;
4058 let bounds = Bounds {
4059 origin: point(
4060 range.start,
4061 layout.hitbox.origin.y
4062 + (start_row.as_f32() - scroll_top)
4063 * layout.position_map.line_height,
4064 ),
4065 size: size(
4066 range.end - range.start,
4067 layout.position_map.line_height
4068 * (end_row - start_row.0 + 1) as f32,
4069 ),
4070 };
4071 window.paint_quad(fill(bounds, active_line_bg));
4072 }
4073 }
4074 }
4075
4076 let mut paint_highlight = |highlight_row_start: DisplayRow,
4077 highlight_row_end: DisplayRow,
4078 highlight: crate::LineHighlight,
4079 edges| {
4080 let origin = point(
4081 layout.hitbox.origin.x,
4082 layout.hitbox.origin.y
4083 + (highlight_row_start.as_f32() - scroll_top)
4084 * layout.position_map.line_height,
4085 );
4086 let size = size(
4087 layout.hitbox.size.width,
4088 layout.position_map.line_height
4089 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4090 );
4091 let mut quad = fill(Bounds { origin, size }, highlight.background);
4092 if let Some(border_color) = highlight.border {
4093 quad.border_color = border_color;
4094 quad.border_widths = edges
4095 }
4096 window.paint_quad(quad);
4097 };
4098
4099 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4100 None;
4101 for (&new_row, &new_background) in &layout.highlighted_rows {
4102 match &mut current_paint {
4103 Some((current_background, current_range, mut edges)) => {
4104 let current_background = *current_background;
4105 let new_range_started = current_background != new_background
4106 || current_range.end.next_row() != new_row;
4107 if new_range_started {
4108 if current_range.end.next_row() == new_row {
4109 edges.bottom = px(0.);
4110 };
4111 paint_highlight(
4112 current_range.start,
4113 current_range.end,
4114 current_background,
4115 edges,
4116 );
4117 let edges = Edges {
4118 top: if current_range.end.next_row() != new_row {
4119 px(1.)
4120 } else {
4121 px(0.)
4122 },
4123 bottom: px(1.),
4124 ..Default::default()
4125 };
4126 current_paint = Some((new_background, new_row..new_row, edges));
4127 continue;
4128 } else {
4129 current_range.end = current_range.end.next_row();
4130 }
4131 }
4132 None => {
4133 let edges = Edges {
4134 top: px(1.),
4135 bottom: px(1.),
4136 ..Default::default()
4137 };
4138 current_paint = Some((new_background, new_row..new_row, edges))
4139 }
4140 };
4141 }
4142 if let Some((color, range, edges)) = current_paint {
4143 paint_highlight(range.start, range.end, color, edges);
4144 }
4145
4146 let scroll_left =
4147 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4148
4149 for (wrap_position, active) in layout.wrap_guides.iter() {
4150 let x = (layout.position_map.text_hitbox.origin.x
4151 + *wrap_position
4152 + layout.position_map.em_width / 2.)
4153 - scroll_left;
4154
4155 let show_scrollbars = {
4156 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4157
4158 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4159 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4160 };
4161
4162 if x < layout.position_map.text_hitbox.origin.x
4163 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4164 {
4165 continue;
4166 }
4167
4168 let color = if *active {
4169 cx.theme().colors().editor_active_wrap_guide
4170 } else {
4171 cx.theme().colors().editor_wrap_guide
4172 };
4173 window.paint_quad(fill(
4174 Bounds {
4175 origin: point(x, layout.position_map.text_hitbox.origin.y),
4176 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4177 },
4178 color,
4179 ));
4180 }
4181 }
4182 })
4183 }
4184
4185 fn paint_indent_guides(
4186 &mut self,
4187 layout: &mut EditorLayout,
4188 window: &mut Window,
4189 cx: &mut App,
4190 ) {
4191 let Some(indent_guides) = &layout.indent_guides else {
4192 return;
4193 };
4194
4195 let faded_color = |color: Hsla, alpha: f32| {
4196 let mut faded = color;
4197 faded.a = alpha;
4198 faded
4199 };
4200
4201 for indent_guide in indent_guides {
4202 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4203 let settings = indent_guide.settings;
4204
4205 // TODO fixed for now, expose them through themes later
4206 const INDENT_AWARE_ALPHA: f32 = 0.2;
4207 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4208 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4209 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4210
4211 let line_color = match (settings.coloring, indent_guide.active) {
4212 (IndentGuideColoring::Disabled, _) => None,
4213 (IndentGuideColoring::Fixed, false) => {
4214 Some(cx.theme().colors().editor_indent_guide)
4215 }
4216 (IndentGuideColoring::Fixed, true) => {
4217 Some(cx.theme().colors().editor_indent_guide_active)
4218 }
4219 (IndentGuideColoring::IndentAware, false) => {
4220 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4221 }
4222 (IndentGuideColoring::IndentAware, true) => {
4223 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4224 }
4225 };
4226
4227 let background_color = match (settings.background_coloring, indent_guide.active) {
4228 (IndentGuideBackgroundColoring::Disabled, _) => None,
4229 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4230 indent_accent_colors,
4231 INDENT_AWARE_BACKGROUND_ALPHA,
4232 )),
4233 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4234 indent_accent_colors,
4235 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4236 )),
4237 };
4238
4239 let requested_line_width = if indent_guide.active {
4240 settings.active_line_width
4241 } else {
4242 settings.line_width
4243 }
4244 .clamp(1, 10);
4245 let mut line_indicator_width = 0.;
4246 if let Some(color) = line_color {
4247 window.paint_quad(fill(
4248 Bounds {
4249 origin: indent_guide.origin,
4250 size: size(px(requested_line_width as f32), indent_guide.length),
4251 },
4252 color,
4253 ));
4254 line_indicator_width = requested_line_width as f32;
4255 }
4256
4257 if let Some(color) = background_color {
4258 let width = indent_guide.single_indent_width - px(line_indicator_width);
4259 window.paint_quad(fill(
4260 Bounds {
4261 origin: point(
4262 indent_guide.origin.x + px(line_indicator_width),
4263 indent_guide.origin.y,
4264 ),
4265 size: size(width, indent_guide.length),
4266 },
4267 color,
4268 ));
4269 }
4270 }
4271 }
4272
4273 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4274 let is_singleton = self.editor.read(cx).is_singleton(cx);
4275
4276 let line_height = layout.position_map.line_height;
4277 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4278
4279 for LineNumberLayout {
4280 shaped_line,
4281 hitbox,
4282 display_row,
4283 } in layout.line_numbers.values()
4284 {
4285 let Some(hitbox) = hitbox else {
4286 continue;
4287 };
4288
4289 let is_active = layout.active_rows.contains_key(&display_row);
4290
4291 let color = if is_active {
4292 cx.theme().colors().editor_active_line_number
4293 } else if !is_singleton && hitbox.is_hovered(window) {
4294 cx.theme().colors().editor_hover_line_number
4295 } else {
4296 cx.theme().colors().editor_line_number
4297 };
4298
4299 let Some(line) = self
4300 .shape_line_number(shaped_line.text.clone(), color, window)
4301 .log_err()
4302 else {
4303 continue;
4304 };
4305 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4306 continue;
4307 };
4308 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4309 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4310 if is_singleton {
4311 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4312 } else {
4313 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4314 }
4315 }
4316 }
4317
4318 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4319 if layout.display_hunks.is_empty() {
4320 return;
4321 }
4322
4323 let line_height = layout.position_map.line_height;
4324 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4325 for (hunk, hitbox) in &layout.display_hunks {
4326 let hunk_to_paint = match hunk {
4327 DisplayDiffHunk::Folded { .. } => {
4328 let hunk_bounds = Self::diff_hunk_bounds(
4329 &layout.position_map.snapshot,
4330 line_height,
4331 layout.gutter_hitbox.bounds,
4332 hunk,
4333 );
4334 Some((
4335 hunk_bounds,
4336 cx.theme().colors().version_control_modified,
4337 Corners::all(px(0.)),
4338 DiffHunkStatus::modified_none(),
4339 ))
4340 }
4341 DisplayDiffHunk::Unfolded {
4342 status,
4343 display_row_range,
4344 ..
4345 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4346 DiffHunkStatusKind::Added => (
4347 hunk_hitbox.bounds,
4348 cx.theme().colors().version_control_added,
4349 Corners::all(px(0.)),
4350 *status,
4351 ),
4352 DiffHunkStatusKind::Modified => (
4353 hunk_hitbox.bounds,
4354 cx.theme().colors().version_control_modified,
4355 Corners::all(px(0.)),
4356 *status,
4357 ),
4358 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4359 hunk_hitbox.bounds,
4360 cx.theme().colors().version_control_deleted,
4361 Corners::all(px(0.)),
4362 *status,
4363 ),
4364 DiffHunkStatusKind::Deleted => (
4365 Bounds::new(
4366 point(
4367 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4368 hunk_hitbox.origin.y,
4369 ),
4370 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4371 ),
4372 cx.theme().colors().version_control_deleted,
4373 Corners::all(1. * line_height),
4374 *status,
4375 ),
4376 }),
4377 };
4378
4379 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4380 // Flatten the background color with the editor color to prevent
4381 // elements below transparent hunks from showing through
4382 let flattened_background_color = cx
4383 .theme()
4384 .colors()
4385 .editor_background
4386 .blend(background_color);
4387
4388 if !Self::diff_hunk_hollow(status, cx) {
4389 window.paint_quad(quad(
4390 hunk_bounds,
4391 corner_radii,
4392 flattened_background_color,
4393 Edges::default(),
4394 transparent_black(),
4395 ));
4396 } else {
4397 let flattened_unstaged_background_color = cx
4398 .theme()
4399 .colors()
4400 .editor_background
4401 .blend(background_color.opacity(0.3));
4402
4403 window.paint_quad(quad(
4404 hunk_bounds,
4405 corner_radii,
4406 flattened_unstaged_background_color,
4407 Edges::all(Pixels(1.0)),
4408 flattened_background_color,
4409 ));
4410 }
4411 }
4412 }
4413 });
4414 }
4415
4416 fn diff_hunk_bounds(
4417 snapshot: &EditorSnapshot,
4418 line_height: Pixels,
4419 gutter_bounds: Bounds<Pixels>,
4420 hunk: &DisplayDiffHunk,
4421 ) -> Bounds<Pixels> {
4422 let scroll_position = snapshot.scroll_position();
4423 let scroll_top = scroll_position.y * line_height;
4424 let gutter_strip_width = (0.275 * line_height).floor();
4425
4426 match hunk {
4427 DisplayDiffHunk::Folded { display_row, .. } => {
4428 let start_y = display_row.as_f32() * line_height - scroll_top;
4429 let end_y = start_y + line_height;
4430 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4431 let highlight_size = size(gutter_strip_width, end_y - start_y);
4432 Bounds::new(highlight_origin, highlight_size)
4433 }
4434 DisplayDiffHunk::Unfolded {
4435 display_row_range,
4436 status,
4437 ..
4438 } => {
4439 if status.is_deleted() && display_row_range.is_empty() {
4440 let row = display_row_range.start;
4441
4442 let offset = line_height / 2.;
4443 let start_y = row.as_f32() * line_height - offset - scroll_top;
4444 let end_y = start_y + line_height;
4445
4446 let width = (0.35 * line_height).floor();
4447 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4448 let highlight_size = size(width, end_y - start_y);
4449 Bounds::new(highlight_origin, highlight_size)
4450 } else {
4451 let start_row = display_row_range.start;
4452 let end_row = display_row_range.end;
4453 // If we're in a multibuffer, row range span might include an
4454 // excerpt header, so if we were to draw the marker straight away,
4455 // the hunk might include the rows of that header.
4456 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4457 // Instead, we simply check whether the range we're dealing with includes
4458 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4459 let end_row_in_current_excerpt = snapshot
4460 .blocks_in_range(start_row..end_row)
4461 .find_map(|(start_row, block)| {
4462 if matches!(block, Block::ExcerptBoundary { .. }) {
4463 Some(start_row)
4464 } else {
4465 None
4466 }
4467 })
4468 .unwrap_or(end_row);
4469
4470 let start_y = start_row.as_f32() * line_height - scroll_top;
4471 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4472
4473 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4474 let highlight_size = size(gutter_strip_width, end_y - start_y);
4475 Bounds::new(highlight_origin, highlight_size)
4476 }
4477 }
4478 }
4479 }
4480
4481 fn paint_gutter_indicators(
4482 &self,
4483 layout: &mut EditorLayout,
4484 window: &mut Window,
4485 cx: &mut App,
4486 ) {
4487 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4488 window.with_element_namespace("crease_toggles", |window| {
4489 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4490 crease_toggle.paint(window, cx);
4491 }
4492 });
4493
4494 window.with_element_namespace("expand_toggles", |window| {
4495 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4496 expand_toggle.paint(window, cx);
4497 }
4498 });
4499
4500 for test_indicator in layout.test_indicators.iter_mut() {
4501 test_indicator.paint(window, cx);
4502 }
4503
4504 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4505 indicator.paint(window, cx);
4506 }
4507 });
4508 }
4509
4510 fn paint_gutter_highlights(
4511 &self,
4512 layout: &mut EditorLayout,
4513 window: &mut Window,
4514 cx: &mut App,
4515 ) {
4516 for (_, hunk_hitbox) in &layout.display_hunks {
4517 if let Some(hunk_hitbox) = hunk_hitbox {
4518 if !self
4519 .editor
4520 .read(cx)
4521 .buffer()
4522 .read(cx)
4523 .all_diff_hunks_expanded()
4524 {
4525 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4526 }
4527 }
4528 }
4529
4530 let show_git_gutter = layout
4531 .position_map
4532 .snapshot
4533 .show_git_diff_gutter
4534 .unwrap_or_else(|| {
4535 matches!(
4536 ProjectSettings::get_global(cx).git.git_gutter,
4537 Some(GitGutterSetting::TrackedFiles)
4538 )
4539 });
4540 if show_git_gutter {
4541 Self::paint_gutter_diff_hunks(layout, window, cx)
4542 }
4543
4544 let highlight_width = 0.275 * layout.position_map.line_height;
4545 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4546 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4547 for (range, color) in &layout.highlighted_gutter_ranges {
4548 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4549 layout.visible_display_row_range.start - DisplayRow(1)
4550 } else {
4551 range.start.row()
4552 };
4553 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4554 layout.visible_display_row_range.end + DisplayRow(1)
4555 } else {
4556 range.end.row()
4557 };
4558
4559 let start_y = layout.gutter_hitbox.top()
4560 + start_row.0 as f32 * layout.position_map.line_height
4561 - layout.position_map.scroll_pixel_position.y;
4562 let end_y = layout.gutter_hitbox.top()
4563 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4564 - layout.position_map.scroll_pixel_position.y;
4565 let bounds = Bounds::from_corners(
4566 point(layout.gutter_hitbox.left(), start_y),
4567 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4568 );
4569 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4570 }
4571 });
4572 }
4573
4574 fn paint_blamed_display_rows(
4575 &self,
4576 layout: &mut EditorLayout,
4577 window: &mut Window,
4578 cx: &mut App,
4579 ) {
4580 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4581 return;
4582 };
4583
4584 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4585 for mut blame_element in blamed_display_rows.into_iter() {
4586 blame_element.paint(window, cx);
4587 }
4588 })
4589 }
4590
4591 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4592 window.with_content_mask(
4593 Some(ContentMask {
4594 bounds: layout.position_map.text_hitbox.bounds,
4595 }),
4596 |window| {
4597 let cursor_style = if self
4598 .editor
4599 .read(cx)
4600 .hovered_link_state
4601 .as_ref()
4602 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4603 {
4604 CursorStyle::PointingHand
4605 } else {
4606 CursorStyle::IBeam
4607 };
4608 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4609
4610 self.paint_lines_background(layout, window, cx);
4611 let invisible_display_ranges = self.paint_highlights(layout, window);
4612 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4613 self.paint_redactions(layout, window);
4614 self.paint_cursors(layout, window, cx);
4615 self.paint_inline_diagnostics(layout, window, cx);
4616 self.paint_inline_blame(layout, window, cx);
4617 self.paint_diff_hunk_controls(layout, window, cx);
4618 window.with_element_namespace("crease_trailers", |window| {
4619 for trailer in layout.crease_trailers.iter_mut().flatten() {
4620 trailer.element.paint(window, cx);
4621 }
4622 });
4623 },
4624 )
4625 }
4626
4627 fn paint_highlights(
4628 &mut self,
4629 layout: &mut EditorLayout,
4630 window: &mut Window,
4631 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4632 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4633 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4634 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4635 for (range, color) in &layout.highlighted_ranges {
4636 self.paint_highlighted_range(
4637 range.clone(),
4638 *color,
4639 Pixels::ZERO,
4640 line_end_overshoot,
4641 layout,
4642 window,
4643 );
4644 }
4645
4646 let corner_radius = 0.15 * layout.position_map.line_height;
4647
4648 for (player_color, selections) in &layout.selections {
4649 for selection in selections.iter() {
4650 self.paint_highlighted_range(
4651 selection.range.clone(),
4652 player_color.selection,
4653 corner_radius,
4654 corner_radius * 2.,
4655 layout,
4656 window,
4657 );
4658
4659 if selection.is_local && !selection.range.is_empty() {
4660 invisible_display_ranges.push(selection.range.clone());
4661 }
4662 }
4663 }
4664 invisible_display_ranges
4665 })
4666 }
4667
4668 fn paint_lines(
4669 &mut self,
4670 invisible_display_ranges: &[Range<DisplayPoint>],
4671 layout: &mut EditorLayout,
4672 window: &mut Window,
4673 cx: &mut App,
4674 ) {
4675 let whitespace_setting = self
4676 .editor
4677 .read(cx)
4678 .buffer
4679 .read(cx)
4680 .language_settings(cx)
4681 .show_whitespaces;
4682
4683 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4684 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4685 line_with_invisibles.draw(
4686 layout,
4687 row,
4688 layout.content_origin,
4689 whitespace_setting,
4690 invisible_display_ranges,
4691 window,
4692 cx,
4693 )
4694 }
4695
4696 for line_element in &mut layout.line_elements {
4697 line_element.paint(window, cx);
4698 }
4699 }
4700
4701 fn paint_lines_background(
4702 &mut self,
4703 layout: &mut EditorLayout,
4704 window: &mut Window,
4705 cx: &mut App,
4706 ) {
4707 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4708 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4709 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4710 }
4711 }
4712
4713 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4714 if layout.redacted_ranges.is_empty() {
4715 return;
4716 }
4717
4718 let line_end_overshoot = layout.line_end_overshoot();
4719
4720 // A softer than perfect black
4721 let redaction_color = gpui::rgb(0x0e1111);
4722
4723 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4724 for range in layout.redacted_ranges.iter() {
4725 self.paint_highlighted_range(
4726 range.clone(),
4727 redaction_color.into(),
4728 Pixels::ZERO,
4729 line_end_overshoot,
4730 layout,
4731 window,
4732 );
4733 }
4734 });
4735 }
4736
4737 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4738 for cursor in &mut layout.visible_cursors {
4739 cursor.paint(layout.content_origin, window, cx);
4740 }
4741 }
4742
4743 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4744 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4745
4746 if let Some(scrollbar_layout) = scrollbar_x {
4747 let hitbox = scrollbar_layout.hitbox.clone();
4748 let text_unit_size = scrollbar_layout.text_unit_size;
4749 let visible_range = scrollbar_layout.visible_range.clone();
4750 let thumb_bounds = scrollbar_layout.thumb_bounds();
4751
4752 if scrollbar_layout.visible {
4753 window.paint_layer(hitbox.bounds, |window| {
4754 window.paint_quad(quad(
4755 hitbox.bounds,
4756 Corners::default(),
4757 cx.theme().colors().scrollbar_track_background,
4758 Edges {
4759 top: Pixels::ZERO,
4760 right: Pixels::ZERO,
4761 bottom: Pixels::ZERO,
4762 left: Pixels::ZERO,
4763 },
4764 cx.theme().colors().scrollbar_track_border,
4765 ));
4766
4767 window.paint_quad(quad(
4768 thumb_bounds,
4769 Corners::default(),
4770 cx.theme().colors().scrollbar_thumb_background,
4771 Edges {
4772 top: Pixels::ZERO,
4773 right: Pixels::ZERO,
4774 bottom: Pixels::ZERO,
4775 left: ScrollbarLayout::BORDER_WIDTH,
4776 },
4777 cx.theme().colors().scrollbar_thumb_border,
4778 ));
4779 })
4780 }
4781
4782 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4783
4784 window.on_mouse_event({
4785 let editor = self.editor.clone();
4786
4787 // there may be a way to avoid this clone
4788 let hitbox = hitbox.clone();
4789
4790 let mut mouse_position = window.mouse_position();
4791 move |event: &MouseMoveEvent, phase, window, cx| {
4792 if phase == DispatchPhase::Capture {
4793 return;
4794 }
4795
4796 editor.update(cx, |editor, cx| {
4797 if event.pressed_button == Some(MouseButton::Left)
4798 && editor
4799 .scroll_manager
4800 .is_dragging_scrollbar(Axis::Horizontal)
4801 {
4802 let x = mouse_position.x;
4803 let new_x = event.position.x;
4804 if (hitbox.left()..hitbox.right()).contains(&x) {
4805 let mut position = editor.scroll_position(cx);
4806
4807 position.x += (new_x - x) / text_unit_size;
4808 if position.x < 0.0 {
4809 position.x = 0.0;
4810 }
4811 editor.set_scroll_position(position, window, cx);
4812 }
4813
4814 cx.stop_propagation();
4815 } else {
4816 editor.scroll_manager.set_is_dragging_scrollbar(
4817 Axis::Horizontal,
4818 false,
4819 cx,
4820 );
4821
4822 if hitbox.is_hovered(window) {
4823 editor.scroll_manager.show_scrollbar(window, cx);
4824 }
4825 }
4826 mouse_position = event.position;
4827 })
4828 }
4829 });
4830
4831 if self
4832 .editor
4833 .read(cx)
4834 .scroll_manager
4835 .is_dragging_scrollbar(Axis::Horizontal)
4836 {
4837 window.on_mouse_event({
4838 let editor = self.editor.clone();
4839 move |_: &MouseUpEvent, phase, _, cx| {
4840 if phase == DispatchPhase::Capture {
4841 return;
4842 }
4843
4844 editor.update(cx, |editor, cx| {
4845 editor.scroll_manager.set_is_dragging_scrollbar(
4846 Axis::Horizontal,
4847 false,
4848 cx,
4849 );
4850 cx.stop_propagation();
4851 });
4852 }
4853 });
4854 } else {
4855 window.on_mouse_event({
4856 let editor = self.editor.clone();
4857
4858 move |event: &MouseDownEvent, phase, window, cx| {
4859 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4860 return;
4861 }
4862
4863 editor.update(cx, |editor, cx| {
4864 editor.scroll_manager.set_is_dragging_scrollbar(
4865 Axis::Horizontal,
4866 true,
4867 cx,
4868 );
4869
4870 let x = event.position.x;
4871
4872 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4873 let center_row =
4874 ((x - hitbox.left()) / text_unit_size).round() as u32;
4875 let top_row = center_row.saturating_sub(
4876 (visible_range.end - visible_range.start) as u32 / 2,
4877 );
4878
4879 let mut position = editor.scroll_position(cx);
4880 position.x = top_row as f32;
4881
4882 editor.set_scroll_position(position, window, cx);
4883 } else {
4884 editor.scroll_manager.show_scrollbar(window, cx);
4885 }
4886
4887 cx.stop_propagation();
4888 });
4889 }
4890 });
4891 }
4892 }
4893
4894 if let Some(scrollbar_layout) = scrollbar_y {
4895 let hitbox = scrollbar_layout.hitbox.clone();
4896 let text_unit_size = scrollbar_layout.text_unit_size;
4897 let visible_range = scrollbar_layout.visible_range.clone();
4898 let thumb_bounds = scrollbar_layout.thumb_bounds();
4899
4900 if scrollbar_layout.visible {
4901 window.paint_layer(hitbox.bounds, |window| {
4902 window.paint_quad(quad(
4903 hitbox.bounds,
4904 Corners::default(),
4905 cx.theme().colors().scrollbar_track_background,
4906 Edges {
4907 top: Pixels::ZERO,
4908 right: Pixels::ZERO,
4909 bottom: Pixels::ZERO,
4910 left: ScrollbarLayout::BORDER_WIDTH,
4911 },
4912 cx.theme().colors().scrollbar_track_border,
4913 ));
4914
4915 let fast_markers =
4916 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4917 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4918 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4919
4920 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4921 for marker in markers.iter().chain(&fast_markers) {
4922 let mut marker = marker.clone();
4923 marker.bounds.origin += hitbox.origin;
4924 window.paint_quad(marker);
4925 }
4926
4927 window.paint_quad(quad(
4928 thumb_bounds,
4929 Corners::default(),
4930 cx.theme().colors().scrollbar_thumb_background,
4931 Edges {
4932 top: Pixels::ZERO,
4933 right: Pixels::ZERO,
4934 bottom: Pixels::ZERO,
4935 left: ScrollbarLayout::BORDER_WIDTH,
4936 },
4937 cx.theme().colors().scrollbar_thumb_border,
4938 ));
4939 });
4940 }
4941
4942 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4943
4944 window.on_mouse_event({
4945 let editor = self.editor.clone();
4946
4947 let hitbox = hitbox.clone();
4948
4949 let mut mouse_position = window.mouse_position();
4950 move |event: &MouseMoveEvent, phase, window, cx| {
4951 if phase == DispatchPhase::Capture {
4952 return;
4953 }
4954
4955 editor.update(cx, |editor, cx| {
4956 if event.pressed_button == Some(MouseButton::Left)
4957 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4958 {
4959 let y = mouse_position.y;
4960 let new_y = event.position.y;
4961 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4962 let mut position = editor.scroll_position(cx);
4963 position.y += (new_y - y) / text_unit_size;
4964 if position.y < 0.0 {
4965 position.y = 0.0;
4966 }
4967 editor.set_scroll_position(position, window, cx);
4968 }
4969 } else {
4970 editor.scroll_manager.set_is_dragging_scrollbar(
4971 Axis::Vertical,
4972 false,
4973 cx,
4974 );
4975
4976 if hitbox.is_hovered(window) {
4977 editor.scroll_manager.show_scrollbar(window, cx);
4978 }
4979 }
4980 mouse_position = event.position;
4981 })
4982 }
4983 });
4984
4985 if self
4986 .editor
4987 .read(cx)
4988 .scroll_manager
4989 .is_dragging_scrollbar(Axis::Vertical)
4990 {
4991 window.on_mouse_event({
4992 let editor = self.editor.clone();
4993 move |_: &MouseUpEvent, phase, _, cx| {
4994 if phase == DispatchPhase::Capture {
4995 return;
4996 }
4997
4998 editor.update(cx, |editor, cx| {
4999 editor.scroll_manager.set_is_dragging_scrollbar(
5000 Axis::Vertical,
5001 false,
5002 cx,
5003 );
5004 cx.stop_propagation();
5005 });
5006 }
5007 });
5008 } else {
5009 window.on_mouse_event({
5010 let editor = self.editor.clone();
5011
5012 move |event: &MouseDownEvent, phase, window, cx| {
5013 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5014 return;
5015 }
5016
5017 editor.update(cx, |editor, cx| {
5018 editor.scroll_manager.set_is_dragging_scrollbar(
5019 Axis::Vertical,
5020 true,
5021 cx,
5022 );
5023
5024 let y = event.position.y;
5025 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5026 let center_row =
5027 ((y - hitbox.top()) / text_unit_size).round() as u32;
5028 let top_row = center_row.saturating_sub(
5029 (visible_range.end - visible_range.start) as u32 / 2,
5030 );
5031 let mut position = editor.scroll_position(cx);
5032 position.y = top_row as f32;
5033 editor.set_scroll_position(position, window, cx);
5034 } else {
5035 editor.scroll_manager.show_scrollbar(window, cx);
5036 }
5037
5038 cx.stop_propagation();
5039 });
5040 }
5041 });
5042 }
5043 }
5044 }
5045
5046 fn collect_fast_scrollbar_markers(
5047 &self,
5048 layout: &EditorLayout,
5049 scrollbar_layout: &ScrollbarLayout,
5050 cx: &mut App,
5051 ) -> Vec<PaintQuad> {
5052 const LIMIT: usize = 100;
5053 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5054 return vec![];
5055 }
5056 let cursor_ranges = layout
5057 .cursors
5058 .iter()
5059 .map(|(point, color)| ColoredRange {
5060 start: point.row(),
5061 end: point.row(),
5062 color: *color,
5063 })
5064 .collect_vec();
5065 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5066 }
5067
5068 fn refresh_slow_scrollbar_markers(
5069 &self,
5070 layout: &EditorLayout,
5071 scrollbar_layout: &ScrollbarLayout,
5072 window: &mut Window,
5073 cx: &mut App,
5074 ) {
5075 self.editor.update(cx, |editor, cx| {
5076 if !editor.is_singleton(cx)
5077 || !editor
5078 .scrollbar_marker_state
5079 .should_refresh(scrollbar_layout.hitbox.size)
5080 {
5081 return;
5082 }
5083
5084 let scrollbar_layout = scrollbar_layout.clone();
5085 let background_highlights = editor.background_highlights.clone();
5086 let snapshot = layout.position_map.snapshot.clone();
5087 let theme = cx.theme().clone();
5088 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5089
5090 editor.scrollbar_marker_state.dirty = false;
5091 editor.scrollbar_marker_state.pending_refresh =
5092 Some(cx.spawn_in(window, |editor, mut cx| async move {
5093 let scrollbar_size = scrollbar_layout.hitbox.size;
5094 let scrollbar_markers = cx
5095 .background_spawn(async move {
5096 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5097 let mut marker_quads = Vec::new();
5098 if scrollbar_settings.git_diff {
5099 let marker_row_ranges =
5100 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5101 let start_display_row =
5102 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5103 .to_display_point(&snapshot.display_snapshot)
5104 .row();
5105 let mut end_display_row =
5106 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5107 .to_display_point(&snapshot.display_snapshot)
5108 .row();
5109 if end_display_row != start_display_row {
5110 end_display_row.0 -= 1;
5111 }
5112 let color = match &hunk.status().kind {
5113 DiffHunkStatusKind::Added => {
5114 theme.colors().version_control_added
5115 }
5116 DiffHunkStatusKind::Modified => {
5117 theme.colors().version_control_modified
5118 }
5119 DiffHunkStatusKind::Deleted => {
5120 theme.colors().version_control_deleted
5121 }
5122 };
5123 ColoredRange {
5124 start: start_display_row,
5125 end: end_display_row,
5126 color,
5127 }
5128 });
5129
5130 marker_quads.extend(
5131 scrollbar_layout
5132 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5133 );
5134 }
5135
5136 for (background_highlight_id, (_, background_ranges)) in
5137 background_highlights.iter()
5138 {
5139 let is_search_highlights = *background_highlight_id
5140 == TypeId::of::<BufferSearchHighlights>();
5141 let is_text_highlights = *background_highlight_id
5142 == TypeId::of::<SelectedTextHighlight>();
5143 let is_symbol_occurrences = *background_highlight_id
5144 == TypeId::of::<DocumentHighlightRead>()
5145 || *background_highlight_id
5146 == TypeId::of::<DocumentHighlightWrite>();
5147 if (is_search_highlights && scrollbar_settings.search_results)
5148 || (is_text_highlights && scrollbar_settings.selected_text)
5149 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5150 {
5151 let mut color = theme.status().info;
5152 if is_symbol_occurrences {
5153 color.fade_out(0.5);
5154 }
5155 let marker_row_ranges = background_ranges.iter().map(|range| {
5156 let display_start = range
5157 .start
5158 .to_display_point(&snapshot.display_snapshot);
5159 let display_end =
5160 range.end.to_display_point(&snapshot.display_snapshot);
5161 ColoredRange {
5162 start: display_start.row(),
5163 end: display_end.row(),
5164 color,
5165 }
5166 });
5167 marker_quads.extend(
5168 scrollbar_layout
5169 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5170 );
5171 }
5172 }
5173
5174 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5175 let diagnostics = snapshot
5176 .buffer_snapshot
5177 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5178 // Don't show diagnostics the user doesn't care about
5179 .filter(|diagnostic| {
5180 match (
5181 scrollbar_settings.diagnostics,
5182 diagnostic.diagnostic.severity,
5183 ) {
5184 (ScrollbarDiagnostics::All, _) => true,
5185 (
5186 ScrollbarDiagnostics::Error,
5187 DiagnosticSeverity::ERROR,
5188 ) => true,
5189 (
5190 ScrollbarDiagnostics::Warning,
5191 DiagnosticSeverity::ERROR
5192 | DiagnosticSeverity::WARNING,
5193 ) => true,
5194 (
5195 ScrollbarDiagnostics::Information,
5196 DiagnosticSeverity::ERROR
5197 | DiagnosticSeverity::WARNING
5198 | DiagnosticSeverity::INFORMATION,
5199 ) => true,
5200 (_, _) => false,
5201 }
5202 })
5203 // We want to sort by severity, in order to paint the most severe diagnostics last.
5204 .sorted_by_key(|diagnostic| {
5205 std::cmp::Reverse(diagnostic.diagnostic.severity)
5206 });
5207
5208 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5209 let start_display = diagnostic
5210 .range
5211 .start
5212 .to_display_point(&snapshot.display_snapshot);
5213 let end_display = diagnostic
5214 .range
5215 .end
5216 .to_display_point(&snapshot.display_snapshot);
5217 let color = match diagnostic.diagnostic.severity {
5218 DiagnosticSeverity::ERROR => theme.status().error,
5219 DiagnosticSeverity::WARNING => theme.status().warning,
5220 DiagnosticSeverity::INFORMATION => theme.status().info,
5221 _ => theme.status().hint,
5222 };
5223 ColoredRange {
5224 start: start_display.row(),
5225 end: end_display.row(),
5226 color,
5227 }
5228 });
5229 marker_quads.extend(
5230 scrollbar_layout
5231 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5232 );
5233 }
5234
5235 Arc::from(marker_quads)
5236 })
5237 .await;
5238
5239 editor.update(&mut cx, |editor, cx| {
5240 editor.scrollbar_marker_state.markers = scrollbar_markers;
5241 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5242 editor.scrollbar_marker_state.pending_refresh = None;
5243 cx.notify();
5244 })?;
5245
5246 Ok(())
5247 }));
5248 });
5249 }
5250
5251 fn paint_highlighted_range(
5252 &self,
5253 range: Range<DisplayPoint>,
5254 color: Hsla,
5255 corner_radius: Pixels,
5256 line_end_overshoot: Pixels,
5257 layout: &EditorLayout,
5258 window: &mut Window,
5259 ) {
5260 let start_row = layout.visible_display_row_range.start;
5261 let end_row = layout.visible_display_row_range.end;
5262 if range.start != range.end {
5263 let row_range = if range.end.column() == 0 {
5264 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5265 } else {
5266 cmp::max(range.start.row(), start_row)
5267 ..cmp::min(range.end.row().next_row(), end_row)
5268 };
5269
5270 let highlighted_range = HighlightedRange {
5271 color,
5272 line_height: layout.position_map.line_height,
5273 corner_radius,
5274 start_y: layout.content_origin.y
5275 + row_range.start.as_f32() * layout.position_map.line_height
5276 - layout.position_map.scroll_pixel_position.y,
5277 lines: row_range
5278 .iter_rows()
5279 .map(|row| {
5280 let line_layout =
5281 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5282 HighlightedRangeLine {
5283 start_x: if row == range.start.row() {
5284 layout.content_origin.x
5285 + line_layout.x_for_index(range.start.column() as usize)
5286 - layout.position_map.scroll_pixel_position.x
5287 } else {
5288 layout.content_origin.x
5289 - layout.position_map.scroll_pixel_position.x
5290 },
5291 end_x: if row == range.end.row() {
5292 layout.content_origin.x
5293 + line_layout.x_for_index(range.end.column() as usize)
5294 - layout.position_map.scroll_pixel_position.x
5295 } else {
5296 layout.content_origin.x + line_layout.width + line_end_overshoot
5297 - layout.position_map.scroll_pixel_position.x
5298 },
5299 }
5300 })
5301 .collect(),
5302 };
5303
5304 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5305 }
5306 }
5307
5308 fn paint_inline_diagnostics(
5309 &mut self,
5310 layout: &mut EditorLayout,
5311 window: &mut Window,
5312 cx: &mut App,
5313 ) {
5314 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5315 inline_diagnostic.1.paint(window, cx);
5316 }
5317 }
5318
5319 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5320 if let Some(mut inline_blame) = layout.inline_blame.take() {
5321 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5322 inline_blame.paint(window, cx);
5323 })
5324 }
5325 }
5326
5327 fn paint_diff_hunk_controls(
5328 &mut self,
5329 layout: &mut EditorLayout,
5330 window: &mut Window,
5331 cx: &mut App,
5332 ) {
5333 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5334 diff_hunk_control.paint(window, cx);
5335 }
5336 }
5337
5338 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5339 for mut block in layout.blocks.drain(..) {
5340 block.element.paint(window, cx);
5341 }
5342 }
5343
5344 fn paint_inline_completion_popover(
5345 &mut self,
5346 layout: &mut EditorLayout,
5347 window: &mut Window,
5348 cx: &mut App,
5349 ) {
5350 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5351 inline_completion_popover.paint(window, cx);
5352 }
5353 }
5354
5355 fn paint_mouse_context_menu(
5356 &mut self,
5357 layout: &mut EditorLayout,
5358 window: &mut Window,
5359 cx: &mut App,
5360 ) {
5361 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5362 mouse_context_menu.paint(window, cx);
5363 }
5364 }
5365
5366 fn paint_scroll_wheel_listener(
5367 &mut self,
5368 layout: &EditorLayout,
5369 window: &mut Window,
5370 cx: &mut App,
5371 ) {
5372 window.on_mouse_event({
5373 let position_map = layout.position_map.clone();
5374 let editor = self.editor.clone();
5375 let hitbox = layout.hitbox.clone();
5376 let mut delta = ScrollDelta::default();
5377
5378 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5379 // accidentally turn off their scrolling.
5380 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5381
5382 move |event: &ScrollWheelEvent, phase, window, cx| {
5383 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5384 delta = delta.coalesce(event.delta);
5385 editor.update(cx, |editor, cx| {
5386 let position_map: &PositionMap = &position_map;
5387
5388 let line_height = position_map.line_height;
5389 let max_glyph_width = position_map.em_width;
5390 let (delta, axis) = match delta {
5391 gpui::ScrollDelta::Pixels(mut pixels) => {
5392 //Trackpad
5393 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5394 (pixels, axis)
5395 }
5396
5397 gpui::ScrollDelta::Lines(lines) => {
5398 //Not trackpad
5399 let pixels =
5400 point(lines.x * max_glyph_width, lines.y * line_height);
5401 (pixels, None)
5402 }
5403 };
5404
5405 let current_scroll_position = position_map.snapshot.scroll_position();
5406 let x = (current_scroll_position.x * max_glyph_width
5407 - (delta.x * scroll_sensitivity))
5408 / max_glyph_width;
5409 let y = (current_scroll_position.y * line_height
5410 - (delta.y * scroll_sensitivity))
5411 / line_height;
5412 let mut scroll_position =
5413 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5414 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5415 if forbid_vertical_scroll {
5416 scroll_position.y = current_scroll_position.y;
5417 }
5418
5419 if scroll_position != current_scroll_position {
5420 editor.scroll(scroll_position, axis, window, cx);
5421 cx.stop_propagation();
5422 } else if y < 0. {
5423 // Due to clamping, we may fail to detect cases of overscroll to the top;
5424 // We want the scroll manager to get an update in such cases and detect the change of direction
5425 // on the next frame.
5426 cx.notify();
5427 }
5428 });
5429 }
5430 }
5431 });
5432 }
5433
5434 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5435 self.paint_scroll_wheel_listener(layout, window, cx);
5436
5437 window.on_mouse_event({
5438 let position_map = layout.position_map.clone();
5439 let editor = self.editor.clone();
5440 let diff_hunk_range =
5441 layout
5442 .display_hunks
5443 .iter()
5444 .find_map(|(hunk, hunk_hitbox)| match hunk {
5445 DisplayDiffHunk::Folded { .. } => None,
5446 DisplayDiffHunk::Unfolded {
5447 multi_buffer_range, ..
5448 } => {
5449 if hunk_hitbox
5450 .as_ref()
5451 .map(|hitbox| hitbox.is_hovered(window))
5452 .unwrap_or(false)
5453 {
5454 Some(multi_buffer_range.clone())
5455 } else {
5456 None
5457 }
5458 }
5459 });
5460 let line_numbers = layout.line_numbers.clone();
5461
5462 move |event: &MouseDownEvent, phase, window, cx| {
5463 if phase == DispatchPhase::Bubble {
5464 match event.button {
5465 MouseButton::Left => editor.update(cx, |editor, cx| {
5466 let pending_mouse_down = editor
5467 .pending_mouse_down
5468 .get_or_insert_with(Default::default)
5469 .clone();
5470
5471 *pending_mouse_down.borrow_mut() = Some(event.clone());
5472
5473 Self::mouse_left_down(
5474 editor,
5475 event,
5476 diff_hunk_range.clone(),
5477 &position_map,
5478 line_numbers.as_ref(),
5479 window,
5480 cx,
5481 );
5482 }),
5483 MouseButton::Right => editor.update(cx, |editor, cx| {
5484 Self::mouse_right_down(editor, event, &position_map, window, cx);
5485 }),
5486 MouseButton::Middle => editor.update(cx, |editor, cx| {
5487 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5488 }),
5489 _ => {}
5490 };
5491 }
5492 }
5493 });
5494
5495 window.on_mouse_event({
5496 let editor = self.editor.clone();
5497 let position_map = layout.position_map.clone();
5498
5499 move |event: &MouseUpEvent, phase, window, cx| {
5500 if phase == DispatchPhase::Bubble {
5501 editor.update(cx, |editor, cx| {
5502 Self::mouse_up(editor, event, &position_map, window, cx)
5503 });
5504 }
5505 }
5506 });
5507
5508 window.on_mouse_event({
5509 let editor = self.editor.clone();
5510 let position_map = layout.position_map.clone();
5511 let mut captured_mouse_down = None;
5512
5513 move |event: &MouseUpEvent, phase, window, cx| match phase {
5514 // Clear the pending mouse down during the capture phase,
5515 // so that it happens even if another event handler stops
5516 // propagation.
5517 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5518 let pending_mouse_down = editor
5519 .pending_mouse_down
5520 .get_or_insert_with(Default::default)
5521 .clone();
5522
5523 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5524 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5525 captured_mouse_down = pending_mouse_down.take();
5526 window.refresh();
5527 }
5528 }),
5529 // Fire click handlers during the bubble phase.
5530 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5531 if let Some(mouse_down) = captured_mouse_down.take() {
5532 let event = ClickEvent {
5533 down: mouse_down,
5534 up: event.clone(),
5535 };
5536 Self::click(editor, &event, &position_map, window, cx);
5537 }
5538 }),
5539 }
5540 });
5541
5542 window.on_mouse_event({
5543 let position_map = layout.position_map.clone();
5544 let editor = self.editor.clone();
5545
5546 move |event: &MouseMoveEvent, phase, window, cx| {
5547 if phase == DispatchPhase::Bubble {
5548 editor.update(cx, |editor, cx| {
5549 if editor.hover_state.focused(window, cx) {
5550 return;
5551 }
5552 if event.pressed_button == Some(MouseButton::Left)
5553 || event.pressed_button == Some(MouseButton::Middle)
5554 {
5555 Self::mouse_dragged(editor, event, &position_map, window, cx)
5556 }
5557
5558 Self::mouse_moved(editor, event, &position_map, window, cx)
5559 });
5560 }
5561 }
5562 });
5563 }
5564
5565 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5566 bounds.top_right().x - self.style.scrollbar_width
5567 }
5568
5569 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5570 let style = &self.style;
5571 let font_size = style.text.font_size.to_pixels(window.rem_size());
5572 let layout = window
5573 .text_system()
5574 .shape_line(
5575 SharedString::from(" ".repeat(column)),
5576 font_size,
5577 &[TextRun {
5578 len: column,
5579 font: style.text.font(),
5580 color: Hsla::default(),
5581 background_color: None,
5582 underline: None,
5583 strikethrough: None,
5584 }],
5585 )
5586 .unwrap();
5587
5588 layout.width
5589 }
5590
5591 fn max_line_number_width(
5592 &self,
5593 snapshot: &EditorSnapshot,
5594 window: &mut Window,
5595 cx: &mut App,
5596 ) -> Pixels {
5597 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5598 self.column_pixels(digit_count as usize, window, cx)
5599 }
5600
5601 fn shape_line_number(
5602 &self,
5603 text: SharedString,
5604 color: Hsla,
5605 window: &mut Window,
5606 ) -> anyhow::Result<ShapedLine> {
5607 let run = TextRun {
5608 len: text.len(),
5609 font: self.style.text.font(),
5610 color,
5611 background_color: None,
5612 underline: None,
5613 strikethrough: None,
5614 };
5615 window.text_system().shape_line(
5616 text,
5617 self.style.text.font_size.to_pixels(window.rem_size()),
5618 &[run],
5619 )
5620 }
5621
5622 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5623 let unstaged = status.has_secondary_hunk();
5624 let unstaged_hollow = ProjectSettings::get_global(cx)
5625 .git
5626 .hunk_style
5627 .map_or(false, |style| {
5628 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5629 });
5630
5631 unstaged == unstaged_hollow
5632 }
5633}
5634
5635fn header_jump_data(
5636 snapshot: &EditorSnapshot,
5637 block_row_start: DisplayRow,
5638 height: u32,
5639 for_excerpt: &ExcerptInfo,
5640) -> JumpData {
5641 let range = &for_excerpt.range;
5642 let buffer = &for_excerpt.buffer;
5643 let jump_anchor = range
5644 .primary
5645 .as_ref()
5646 .map_or(range.context.start, |primary| primary.start);
5647
5648 let excerpt_start = range.context.start;
5649 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5650 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5651 0
5652 } else {
5653 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5654 jump_position.row.saturating_sub(excerpt_start_point.row)
5655 };
5656
5657 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5658 .saturating_sub(
5659 snapshot
5660 .scroll_anchor
5661 .scroll_position(&snapshot.display_snapshot)
5662 .y as u32,
5663 );
5664
5665 JumpData::MultiBufferPoint {
5666 excerpt_id: for_excerpt.id,
5667 anchor: jump_anchor,
5668 position: jump_position,
5669 line_offset_from_top,
5670 }
5671}
5672
5673pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5674
5675impl AcceptEditPredictionBinding {
5676 pub fn keystroke(&self) -> Option<&Keystroke> {
5677 if let Some(binding) = self.0.as_ref() {
5678 match &binding.keystrokes() {
5679 [keystroke] => Some(keystroke),
5680 _ => None,
5681 }
5682 } else {
5683 None
5684 }
5685 }
5686}
5687
5688fn prepaint_gutter_button(
5689 button: IconButton,
5690 row: DisplayRow,
5691 line_height: Pixels,
5692 gutter_dimensions: &GutterDimensions,
5693 scroll_pixel_position: gpui::Point<Pixels>,
5694 gutter_hitbox: &Hitbox,
5695 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5696 window: &mut Window,
5697 cx: &mut App,
5698) -> AnyElement {
5699 let mut button = button.into_any_element();
5700 let available_space = size(
5701 AvailableSpace::MinContent,
5702 AvailableSpace::Definite(line_height),
5703 );
5704 let indicator_size = button.layout_as_root(available_space, window, cx);
5705
5706 let blame_width = gutter_dimensions.git_blame_entries_width;
5707 let gutter_width = display_hunks
5708 .binary_search_by(|(hunk, _)| match hunk {
5709 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5710 DisplayDiffHunk::Unfolded {
5711 display_row_range, ..
5712 } => {
5713 if display_row_range.end <= row {
5714 Ordering::Less
5715 } else if display_row_range.start > row {
5716 Ordering::Greater
5717 } else {
5718 Ordering::Equal
5719 }
5720 }
5721 })
5722 .ok()
5723 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5724 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5725
5726 let mut x = left_offset;
5727 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5728 - indicator_size.width
5729 - left_offset;
5730 x += available_width / 2.;
5731
5732 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5733 y += (line_height - indicator_size.height) / 2.;
5734
5735 button.prepaint_as_root(
5736 gutter_hitbox.origin + point(x, y),
5737 available_space,
5738 window,
5739 cx,
5740 );
5741 button
5742}
5743
5744fn render_inline_blame_entry(
5745 editor: Entity<Editor>,
5746 blame: &gpui::Entity<GitBlame>,
5747 blame_entry: BlameEntry,
5748 style: &EditorStyle,
5749 cx: &mut App,
5750) -> AnyElement {
5751 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5752
5753 let author = blame_entry.author.as_deref().unwrap_or_default();
5754 let summary_enabled = ProjectSettings::get_global(cx)
5755 .git
5756 .show_inline_commit_summary();
5757
5758 let text = match blame_entry.summary.as_ref() {
5759 Some(summary) if summary_enabled => {
5760 format!("{}, {} - {}", author, relative_timestamp, summary)
5761 }
5762 _ => format!("{}, {}", author, relative_timestamp),
5763 };
5764 let blame = blame.clone();
5765 let blame_entry = blame_entry.clone();
5766
5767 h_flex()
5768 .id("inline-blame")
5769 .w_full()
5770 .font_family(style.text.font().family)
5771 .text_color(cx.theme().status().hint)
5772 .line_height(style.text.line_height)
5773 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5774 .child(text)
5775 .gap_2()
5776 .hoverable_tooltip(move |window, cx| {
5777 let details = blame.read(cx).details_for_entry(&blame_entry);
5778 let tooltip =
5779 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5780 editor.update(cx, |editor, _| {
5781 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5782 });
5783 tooltip.into()
5784 })
5785 .into_any()
5786}
5787
5788fn render_blame_entry(
5789 ix: usize,
5790 blame: &gpui::Entity<GitBlame>,
5791 blame_entry: BlameEntry,
5792 style: &EditorStyle,
5793 last_used_color: &mut Option<(PlayerColor, Oid)>,
5794 editor: Entity<Editor>,
5795 cx: &mut App,
5796) -> AnyElement {
5797 let mut sha_color = cx
5798 .theme()
5799 .players()
5800 .color_for_participant(blame_entry.sha.into());
5801 // If the last color we used is the same as the one we get for this line, but
5802 // the commit SHAs are different, then we try again to get a different color.
5803 match *last_used_color {
5804 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5805 let index: u32 = blame_entry.sha.into();
5806 sha_color = cx.theme().players().color_for_participant(index + 1);
5807 }
5808 _ => {}
5809 };
5810 last_used_color.replace((sha_color, blame_entry.sha));
5811
5812 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5813
5814 let short_commit_id = blame_entry.sha.display_short();
5815
5816 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5817 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5818 let details = blame.read(cx).details_for_entry(&blame_entry);
5819
5820 h_flex()
5821 .w_full()
5822 .justify_between()
5823 .font_family(style.text.font().family)
5824 .line_height(style.text.line_height)
5825 .id(("blame", ix))
5826 .text_color(cx.theme().status().hint)
5827 .pr_2()
5828 .gap_2()
5829 .child(
5830 h_flex()
5831 .items_center()
5832 .gap_2()
5833 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5834 .child(name),
5835 )
5836 .child(relative_timestamp)
5837 .on_mouse_down(MouseButton::Right, {
5838 let blame_entry = blame_entry.clone();
5839 let details = details.clone();
5840 move |event, window, cx| {
5841 deploy_blame_entry_context_menu(
5842 &blame_entry,
5843 details.as_ref(),
5844 editor.clone(),
5845 event.position,
5846 window,
5847 cx,
5848 );
5849 }
5850 })
5851 .hover(|style| style.bg(cx.theme().colors().element_hover))
5852 .when_some(
5853 details
5854 .as_ref()
5855 .and_then(|details| details.permalink.clone()),
5856 |this, url| {
5857 this.cursor_pointer().on_click(move |_, _, cx| {
5858 cx.stop_propagation();
5859 cx.open_url(url.as_str())
5860 })
5861 },
5862 )
5863 .hoverable_tooltip(move |window, cx| {
5864 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5865 .into()
5866 })
5867 .into_any()
5868}
5869
5870fn deploy_blame_entry_context_menu(
5871 blame_entry: &BlameEntry,
5872 details: Option<&ParsedCommitMessage>,
5873 editor: Entity<Editor>,
5874 position: gpui::Point<Pixels>,
5875 window: &mut Window,
5876 cx: &mut App,
5877) {
5878 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5879 let sha = format!("{}", blame_entry.sha);
5880 menu.on_blur_subscription(Subscription::new(|| {}))
5881 .entry("Copy commit SHA", None, move |_, cx| {
5882 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5883 })
5884 .when_some(
5885 details.and_then(|details| details.permalink.clone()),
5886 |this, url| {
5887 this.entry("Open permalink", None, move |_, cx| {
5888 cx.open_url(url.as_str())
5889 })
5890 },
5891 )
5892 });
5893
5894 editor.update(cx, move |editor, cx| {
5895 editor.mouse_context_menu = Some(MouseContextMenu::new(
5896 MenuPosition::PinnedToScreen(position),
5897 context_menu,
5898 window,
5899 cx,
5900 ));
5901 cx.notify();
5902 });
5903}
5904
5905#[derive(Debug)]
5906pub(crate) struct LineWithInvisibles {
5907 fragments: SmallVec<[LineFragment; 1]>,
5908 invisibles: Vec<Invisible>,
5909 len: usize,
5910 pub(crate) width: Pixels,
5911 font_size: Pixels,
5912}
5913
5914#[allow(clippy::large_enum_variant)]
5915enum LineFragment {
5916 Text(ShapedLine),
5917 Element {
5918 element: Option<AnyElement>,
5919 size: Size<Pixels>,
5920 len: usize,
5921 },
5922}
5923
5924impl fmt::Debug for LineFragment {
5925 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5926 match self {
5927 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5928 LineFragment::Element { size, len, .. } => f
5929 .debug_struct("Element")
5930 .field("size", size)
5931 .field("len", len)
5932 .finish(),
5933 }
5934 }
5935}
5936
5937impl LineWithInvisibles {
5938 fn from_chunks<'a>(
5939 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5940 editor_style: &EditorStyle,
5941 max_line_len: usize,
5942 max_line_count: usize,
5943 editor_mode: EditorMode,
5944 text_width: Pixels,
5945 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5946 window: &mut Window,
5947 cx: &mut App,
5948 ) -> Vec<Self> {
5949 let text_style = &editor_style.text;
5950 let mut layouts = Vec::with_capacity(max_line_count);
5951 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5952 let mut line = String::new();
5953 let mut invisibles = Vec::new();
5954 let mut width = Pixels::ZERO;
5955 let mut len = 0;
5956 let mut styles = Vec::new();
5957 let mut non_whitespace_added = false;
5958 let mut row = 0;
5959 let mut line_exceeded_max_len = false;
5960 let font_size = text_style.font_size.to_pixels(window.rem_size());
5961
5962 let ellipsis = SharedString::from("⋯");
5963
5964 for highlighted_chunk in chunks.chain([HighlightedChunk {
5965 text: "\n",
5966 style: None,
5967 is_tab: false,
5968 replacement: None,
5969 }]) {
5970 if let Some(replacement) = highlighted_chunk.replacement {
5971 if !line.is_empty() {
5972 let shaped_line = window
5973 .text_system()
5974 .shape_line(line.clone().into(), font_size, &styles)
5975 .unwrap();
5976 width += shaped_line.width;
5977 len += shaped_line.len;
5978 fragments.push(LineFragment::Text(shaped_line));
5979 line.clear();
5980 styles.clear();
5981 }
5982
5983 match replacement {
5984 ChunkReplacement::Renderer(renderer) => {
5985 let available_width = if renderer.constrain_width {
5986 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5987 ellipsis.clone()
5988 } else {
5989 SharedString::from(Arc::from(highlighted_chunk.text))
5990 };
5991 let shaped_line = window
5992 .text_system()
5993 .shape_line(
5994 chunk,
5995 font_size,
5996 &[text_style.to_run(highlighted_chunk.text.len())],
5997 )
5998 .unwrap();
5999 AvailableSpace::Definite(shaped_line.width)
6000 } else {
6001 AvailableSpace::MinContent
6002 };
6003
6004 let mut element = (renderer.render)(&mut ChunkRendererContext {
6005 context: cx,
6006 window,
6007 max_width: text_width,
6008 });
6009 let line_height = text_style.line_height_in_pixels(window.rem_size());
6010 let size = element.layout_as_root(
6011 size(available_width, AvailableSpace::Definite(line_height)),
6012 window,
6013 cx,
6014 );
6015
6016 width += size.width;
6017 len += highlighted_chunk.text.len();
6018 fragments.push(LineFragment::Element {
6019 element: Some(element),
6020 size,
6021 len: highlighted_chunk.text.len(),
6022 });
6023 }
6024 ChunkReplacement::Str(x) => {
6025 let text_style = if let Some(style) = highlighted_chunk.style {
6026 Cow::Owned(text_style.clone().highlight(style))
6027 } else {
6028 Cow::Borrowed(text_style)
6029 };
6030
6031 let run = TextRun {
6032 len: x.len(),
6033 font: text_style.font(),
6034 color: text_style.color,
6035 background_color: text_style.background_color,
6036 underline: text_style.underline,
6037 strikethrough: text_style.strikethrough,
6038 };
6039 let line_layout = window
6040 .text_system()
6041 .shape_line(x, font_size, &[run])
6042 .unwrap()
6043 .with_len(highlighted_chunk.text.len());
6044
6045 width += line_layout.width;
6046 len += highlighted_chunk.text.len();
6047 fragments.push(LineFragment::Text(line_layout))
6048 }
6049 }
6050 } else {
6051 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6052 if ix > 0 {
6053 let shaped_line = window
6054 .text_system()
6055 .shape_line(line.clone().into(), font_size, &styles)
6056 .unwrap();
6057 width += shaped_line.width;
6058 len += shaped_line.len;
6059 fragments.push(LineFragment::Text(shaped_line));
6060 layouts.push(Self {
6061 width: mem::take(&mut width),
6062 len: mem::take(&mut len),
6063 fragments: mem::take(&mut fragments),
6064 invisibles: std::mem::take(&mut invisibles),
6065 font_size,
6066 });
6067
6068 line.clear();
6069 styles.clear();
6070 row += 1;
6071 line_exceeded_max_len = false;
6072 non_whitespace_added = false;
6073 if row == max_line_count {
6074 return layouts;
6075 }
6076 }
6077
6078 if !line_chunk.is_empty() && !line_exceeded_max_len {
6079 let text_style = if let Some(style) = highlighted_chunk.style {
6080 Cow::Owned(text_style.clone().highlight(style))
6081 } else {
6082 Cow::Borrowed(text_style)
6083 };
6084
6085 if line.len() + line_chunk.len() > max_line_len {
6086 let mut chunk_len = max_line_len - line.len();
6087 while !line_chunk.is_char_boundary(chunk_len) {
6088 chunk_len -= 1;
6089 }
6090 line_chunk = &line_chunk[..chunk_len];
6091 line_exceeded_max_len = true;
6092 }
6093
6094 styles.push(TextRun {
6095 len: line_chunk.len(),
6096 font: text_style.font(),
6097 color: text_style.color,
6098 background_color: text_style.background_color,
6099 underline: text_style.underline,
6100 strikethrough: text_style.strikethrough,
6101 });
6102
6103 if editor_mode == EditorMode::Full {
6104 // Line wrap pads its contents with fake whitespaces,
6105 // avoid printing them
6106 let is_soft_wrapped = is_row_soft_wrapped(row);
6107 if highlighted_chunk.is_tab {
6108 if non_whitespace_added || !is_soft_wrapped {
6109 invisibles.push(Invisible::Tab {
6110 line_start_offset: line.len(),
6111 line_end_offset: line.len() + line_chunk.len(),
6112 });
6113 }
6114 } else {
6115 invisibles.extend(line_chunk.char_indices().filter_map(
6116 |(index, c)| {
6117 let is_whitespace = c.is_whitespace();
6118 non_whitespace_added |= !is_whitespace;
6119 if is_whitespace
6120 && (non_whitespace_added || !is_soft_wrapped)
6121 {
6122 Some(Invisible::Whitespace {
6123 line_offset: line.len() + index,
6124 })
6125 } else {
6126 None
6127 }
6128 },
6129 ))
6130 }
6131 }
6132
6133 line.push_str(line_chunk);
6134 }
6135 }
6136 }
6137 }
6138
6139 layouts
6140 }
6141
6142 fn prepaint(
6143 &mut self,
6144 line_height: Pixels,
6145 scroll_pixel_position: gpui::Point<Pixels>,
6146 row: DisplayRow,
6147 content_origin: gpui::Point<Pixels>,
6148 line_elements: &mut SmallVec<[AnyElement; 1]>,
6149 window: &mut Window,
6150 cx: &mut App,
6151 ) {
6152 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6153 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6154 for fragment in &mut self.fragments {
6155 match fragment {
6156 LineFragment::Text(line) => {
6157 fragment_origin.x += line.width;
6158 }
6159 LineFragment::Element { element, size, .. } => {
6160 let mut element = element
6161 .take()
6162 .expect("you can't prepaint LineWithInvisibles twice");
6163
6164 // Center the element vertically within the line.
6165 let mut element_origin = fragment_origin;
6166 element_origin.y += (line_height - size.height) / 2.;
6167 element.prepaint_at(element_origin, window, cx);
6168 line_elements.push(element);
6169
6170 fragment_origin.x += size.width;
6171 }
6172 }
6173 }
6174 }
6175
6176 fn draw(
6177 &self,
6178 layout: &EditorLayout,
6179 row: DisplayRow,
6180 content_origin: gpui::Point<Pixels>,
6181 whitespace_setting: ShowWhitespaceSetting,
6182 selection_ranges: &[Range<DisplayPoint>],
6183 window: &mut Window,
6184 cx: &mut App,
6185 ) {
6186 let line_height = layout.position_map.line_height;
6187 let line_y = line_height
6188 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6189
6190 let mut fragment_origin =
6191 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6192
6193 for fragment in &self.fragments {
6194 match fragment {
6195 LineFragment::Text(line) => {
6196 line.paint(fragment_origin, line_height, window, cx)
6197 .log_err();
6198 fragment_origin.x += line.width;
6199 }
6200 LineFragment::Element { size, .. } => {
6201 fragment_origin.x += size.width;
6202 }
6203 }
6204 }
6205
6206 self.draw_invisibles(
6207 selection_ranges,
6208 layout,
6209 content_origin,
6210 line_y,
6211 row,
6212 line_height,
6213 whitespace_setting,
6214 window,
6215 cx,
6216 );
6217 }
6218
6219 fn draw_background(
6220 &self,
6221 layout: &EditorLayout,
6222 row: DisplayRow,
6223 content_origin: gpui::Point<Pixels>,
6224 window: &mut Window,
6225 cx: &mut App,
6226 ) {
6227 let line_height = layout.position_map.line_height;
6228 let line_y = line_height
6229 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6230
6231 let mut fragment_origin =
6232 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6233
6234 for fragment in &self.fragments {
6235 match fragment {
6236 LineFragment::Text(line) => {
6237 line.paint_background(fragment_origin, line_height, window, cx)
6238 .log_err();
6239 fragment_origin.x += line.width;
6240 }
6241 LineFragment::Element { size, .. } => {
6242 fragment_origin.x += size.width;
6243 }
6244 }
6245 }
6246 }
6247
6248 fn draw_invisibles(
6249 &self,
6250 selection_ranges: &[Range<DisplayPoint>],
6251 layout: &EditorLayout,
6252 content_origin: gpui::Point<Pixels>,
6253 line_y: Pixels,
6254 row: DisplayRow,
6255 line_height: Pixels,
6256 whitespace_setting: ShowWhitespaceSetting,
6257 window: &mut Window,
6258 cx: &mut App,
6259 ) {
6260 let extract_whitespace_info = |invisible: &Invisible| {
6261 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6262 Invisible::Tab {
6263 line_start_offset,
6264 line_end_offset,
6265 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6266 Invisible::Whitespace { line_offset } => {
6267 (*line_offset, line_offset + 1, &layout.space_invisible)
6268 }
6269 };
6270
6271 let x_offset = self.x_for_index(token_offset);
6272 let invisible_offset =
6273 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6274 let origin = content_origin
6275 + gpui::point(
6276 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6277 line_y,
6278 );
6279
6280 (
6281 [token_offset, token_end_offset],
6282 Box::new(move |window: &mut Window, cx: &mut App| {
6283 invisible_symbol
6284 .paint(origin, line_height, window, cx)
6285 .log_err();
6286 }),
6287 )
6288 };
6289
6290 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6291 match whitespace_setting {
6292 ShowWhitespaceSetting::None => (),
6293 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6294 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6295 let invisible_point = DisplayPoint::new(row, start as u32);
6296 if !selection_ranges
6297 .iter()
6298 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6299 {
6300 return;
6301 }
6302
6303 paint(window, cx);
6304 }),
6305
6306 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6307 // - It is a tab
6308 // - It is adjacent to an edge (start or end)
6309 // - It is adjacent to a whitespace (left or right)
6310 ShowWhitespaceSetting::Boundary => {
6311 // 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
6312 // the above cases.
6313 // Note: We zip in the original `invisibles` to check for tab equality
6314 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6315 for (([start, end], paint), invisible) in
6316 invisible_iter.zip_eq(self.invisibles.iter())
6317 {
6318 let should_render = match (&last_seen, invisible) {
6319 (_, Invisible::Tab { .. }) => true,
6320 (Some((_, last_end, _)), _) => *last_end == start,
6321 _ => false,
6322 };
6323
6324 if should_render || start == 0 || end == self.len {
6325 paint(window, cx);
6326
6327 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6328 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6329 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6330 // Note that we need to make sure that the last one is actually adjacent
6331 if !should_render_last && last_end == start {
6332 paint_last(window, cx);
6333 }
6334 }
6335 }
6336
6337 // Manually render anything within a selection
6338 let invisible_point = DisplayPoint::new(row, start as u32);
6339 if selection_ranges.iter().any(|region| {
6340 region.start <= invisible_point && invisible_point < region.end
6341 }) {
6342 paint(window, cx);
6343 }
6344
6345 last_seen = Some((should_render, end, paint));
6346 }
6347 }
6348 }
6349 }
6350
6351 pub fn x_for_index(&self, index: usize) -> Pixels {
6352 let mut fragment_start_x = Pixels::ZERO;
6353 let mut fragment_start_index = 0;
6354
6355 for fragment in &self.fragments {
6356 match fragment {
6357 LineFragment::Text(shaped_line) => {
6358 let fragment_end_index = fragment_start_index + shaped_line.len;
6359 if index < fragment_end_index {
6360 return fragment_start_x
6361 + shaped_line.x_for_index(index - fragment_start_index);
6362 }
6363 fragment_start_x += shaped_line.width;
6364 fragment_start_index = fragment_end_index;
6365 }
6366 LineFragment::Element { len, size, .. } => {
6367 let fragment_end_index = fragment_start_index + len;
6368 if index < fragment_end_index {
6369 return fragment_start_x;
6370 }
6371 fragment_start_x += size.width;
6372 fragment_start_index = fragment_end_index;
6373 }
6374 }
6375 }
6376
6377 fragment_start_x
6378 }
6379
6380 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6381 let mut fragment_start_x = Pixels::ZERO;
6382 let mut fragment_start_index = 0;
6383
6384 for fragment in &self.fragments {
6385 match fragment {
6386 LineFragment::Text(shaped_line) => {
6387 let fragment_end_x = fragment_start_x + shaped_line.width;
6388 if x < fragment_end_x {
6389 return Some(
6390 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6391 );
6392 }
6393 fragment_start_x = fragment_end_x;
6394 fragment_start_index += shaped_line.len;
6395 }
6396 LineFragment::Element { len, size, .. } => {
6397 let fragment_end_x = fragment_start_x + size.width;
6398 if x < fragment_end_x {
6399 return Some(fragment_start_index);
6400 }
6401 fragment_start_index += len;
6402 fragment_start_x = fragment_end_x;
6403 }
6404 }
6405 }
6406
6407 None
6408 }
6409
6410 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6411 let mut fragment_start_index = 0;
6412
6413 for fragment in &self.fragments {
6414 match fragment {
6415 LineFragment::Text(shaped_line) => {
6416 let fragment_end_index = fragment_start_index + shaped_line.len;
6417 if index < fragment_end_index {
6418 return shaped_line.font_id_for_index(index - fragment_start_index);
6419 }
6420 fragment_start_index = fragment_end_index;
6421 }
6422 LineFragment::Element { len, .. } => {
6423 let fragment_end_index = fragment_start_index + len;
6424 if index < fragment_end_index {
6425 return None;
6426 }
6427 fragment_start_index = fragment_end_index;
6428 }
6429 }
6430 }
6431
6432 None
6433 }
6434}
6435
6436#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6437enum Invisible {
6438 /// A tab character
6439 ///
6440 /// A tab character is internally represented by spaces (configured by the user's tab width)
6441 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6442 /// adjacency checks.
6443 Tab {
6444 line_start_offset: usize,
6445 line_end_offset: usize,
6446 },
6447 Whitespace {
6448 line_offset: usize,
6449 },
6450}
6451
6452impl EditorElement {
6453 /// Returns the rem size to use when rendering the [`EditorElement`].
6454 ///
6455 /// This allows UI elements to scale based on the `buffer_font_size`.
6456 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6457 match self.editor.read(cx).mode {
6458 EditorMode::Full => {
6459 let buffer_font_size = self.style.text.font_size;
6460 match buffer_font_size {
6461 AbsoluteLength::Pixels(pixels) => {
6462 let rem_size_scale = {
6463 // Our default UI font size is 14px on a 16px base scale.
6464 // This means the default UI font size is 0.875rems.
6465 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6466
6467 // We then determine the delta between a single rem and the default font
6468 // size scale.
6469 let default_font_size_delta = 1. - default_font_size_scale;
6470
6471 // Finally, we add this delta to 1rem to get the scale factor that
6472 // should be used to scale up the UI.
6473 1. + default_font_size_delta
6474 };
6475
6476 Some(pixels * rem_size_scale)
6477 }
6478 AbsoluteLength::Rems(rems) => {
6479 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6480 }
6481 }
6482 }
6483 // We currently use single-line and auto-height editors in UI contexts,
6484 // so we don't want to scale everything with the buffer font size, as it
6485 // ends up looking off.
6486 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6487 }
6488 }
6489}
6490
6491impl Element for EditorElement {
6492 type RequestLayoutState = ();
6493 type PrepaintState = EditorLayout;
6494
6495 fn id(&self) -> Option<ElementId> {
6496 None
6497 }
6498
6499 fn request_layout(
6500 &mut self,
6501 _: Option<&GlobalElementId>,
6502 window: &mut Window,
6503 cx: &mut App,
6504 ) -> (gpui::LayoutId, ()) {
6505 let rem_size = self.rem_size(cx);
6506 window.with_rem_size(rem_size, |window| {
6507 self.editor.update(cx, |editor, cx| {
6508 editor.set_style(self.style.clone(), window, cx);
6509
6510 let layout_id = match editor.mode {
6511 EditorMode::SingleLine { auto_width } => {
6512 let rem_size = window.rem_size();
6513
6514 let height = self.style.text.line_height_in_pixels(rem_size);
6515 if auto_width {
6516 let editor_handle = cx.entity().clone();
6517 let style = self.style.clone();
6518 window.request_measured_layout(
6519 Style::default(),
6520 move |_, _, window, cx| {
6521 let editor_snapshot = editor_handle
6522 .update(cx, |editor, cx| editor.snapshot(window, cx));
6523 let line = Self::layout_lines(
6524 DisplayRow(0)..DisplayRow(1),
6525 &editor_snapshot,
6526 &style,
6527 px(f32::MAX),
6528 |_| false, // Single lines never soft wrap
6529 window,
6530 cx,
6531 )
6532 .pop()
6533 .unwrap();
6534
6535 let font_id =
6536 window.text_system().resolve_font(&style.text.font());
6537 let font_size =
6538 style.text.font_size.to_pixels(window.rem_size());
6539 let em_width =
6540 window.text_system().em_width(font_id, font_size).unwrap();
6541
6542 size(line.width + em_width, height)
6543 },
6544 )
6545 } else {
6546 let mut style = Style::default();
6547 style.size.height = height.into();
6548 style.size.width = relative(1.).into();
6549 window.request_layout(style, None, cx)
6550 }
6551 }
6552 EditorMode::AutoHeight { max_lines } => {
6553 let editor_handle = cx.entity().clone();
6554 let max_line_number_width =
6555 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6556 window.request_measured_layout(
6557 Style::default(),
6558 move |known_dimensions, available_space, window, cx| {
6559 editor_handle
6560 .update(cx, |editor, cx| {
6561 compute_auto_height_layout(
6562 editor,
6563 max_lines,
6564 max_line_number_width,
6565 known_dimensions,
6566 available_space.width,
6567 window,
6568 cx,
6569 )
6570 })
6571 .unwrap_or_default()
6572 },
6573 )
6574 }
6575 EditorMode::Full => {
6576 let mut style = Style::default();
6577 style.size.width = relative(1.).into();
6578 style.size.height = relative(1.).into();
6579 window.request_layout(style, None, cx)
6580 }
6581 };
6582
6583 (layout_id, ())
6584 })
6585 })
6586 }
6587
6588 fn prepaint(
6589 &mut self,
6590 _: Option<&GlobalElementId>,
6591 bounds: Bounds<Pixels>,
6592 _: &mut Self::RequestLayoutState,
6593 window: &mut Window,
6594 cx: &mut App,
6595 ) -> Self::PrepaintState {
6596 let text_style = TextStyleRefinement {
6597 font_size: Some(self.style.text.font_size),
6598 line_height: Some(self.style.text.line_height),
6599 ..Default::default()
6600 };
6601 let focus_handle = self.editor.focus_handle(cx);
6602 window.set_view_id(self.editor.entity_id());
6603 window.set_focus_handle(&focus_handle, cx);
6604
6605 let rem_size = self.rem_size(cx);
6606 window.with_rem_size(rem_size, |window| {
6607 window.with_text_style(Some(text_style), |window| {
6608 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6609 let mut snapshot = self
6610 .editor
6611 .update(cx, |editor, cx| editor.snapshot(window, cx));
6612 let style = self.style.clone();
6613
6614 let font_id = window.text_system().resolve_font(&style.text.font());
6615 let font_size = style.text.font_size.to_pixels(window.rem_size());
6616 let line_height = style.text.line_height_in_pixels(window.rem_size());
6617 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6618 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6619
6620 let letter_size = size(em_width, line_height);
6621
6622 let gutter_dimensions = snapshot
6623 .gutter_dimensions(
6624 font_id,
6625 font_size,
6626 self.max_line_number_width(&snapshot, window, cx),
6627 cx,
6628 )
6629 .unwrap_or_default();
6630 let text_width = bounds.size.width - gutter_dimensions.width;
6631
6632 let editor_width =
6633 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6634
6635 snapshot = self.editor.update(cx, |editor, cx| {
6636 editor.last_bounds = Some(bounds);
6637 editor.gutter_dimensions = gutter_dimensions;
6638 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6639
6640 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6641 snapshot
6642 } else {
6643 let wrap_width = match editor.soft_wrap_mode(cx) {
6644 SoftWrap::GitDiff => None,
6645 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6646 SoftWrap::EditorWidth => Some(editor_width),
6647 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6648 SoftWrap::Bounded(column) => {
6649 Some(editor_width.min(column as f32 * em_advance))
6650 }
6651 };
6652
6653 if editor.set_wrap_width(wrap_width, cx) {
6654 editor.snapshot(window, cx)
6655 } else {
6656 snapshot
6657 }
6658 }
6659 });
6660
6661 let wrap_guides = self
6662 .editor
6663 .read(cx)
6664 .wrap_guides(cx)
6665 .iter()
6666 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6667 .collect::<SmallVec<[_; 2]>>();
6668
6669 let hitbox = window.insert_hitbox(bounds, false);
6670 let gutter_hitbox =
6671 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6672 let text_hitbox = window.insert_hitbox(
6673 Bounds {
6674 origin: gutter_hitbox.top_right(),
6675 size: size(text_width, bounds.size.height),
6676 },
6677 false,
6678 );
6679 // Offset the content_bounds from the text_bounds by the gutter margin (which
6680 // is roughly half a character wide) to make hit testing work more like how we want.
6681 let content_origin =
6682 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6683
6684 let scrollbar_bounds =
6685 Bounds::from_corners(content_origin, bounds.bottom_right());
6686
6687 let height_in_lines = scrollbar_bounds.size.height / line_height;
6688
6689 // NOTE: The max row number in the current file, minus one
6690 let max_row = snapshot.max_point().row().as_f32();
6691
6692 // NOTE: The max scroll position for the top of the window
6693 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6694 (max_row - height_in_lines + 1.).max(0.)
6695 } else {
6696 let settings = EditorSettings::get_global(cx);
6697 match settings.scroll_beyond_last_line {
6698 ScrollBeyondLastLine::OnePage => max_row,
6699 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6700 ScrollBeyondLastLine::VerticalScrollMargin => {
6701 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6702 .max(0.)
6703 }
6704 }
6705 };
6706
6707 // TODO: Autoscrolling for both axes
6708 let mut autoscroll_request = None;
6709 let mut autoscroll_containing_element = false;
6710 let mut autoscroll_horizontally = false;
6711 self.editor.update(cx, |editor, cx| {
6712 autoscroll_request = editor.autoscroll_request();
6713 autoscroll_containing_element =
6714 autoscroll_request.is_some() || editor.has_pending_selection();
6715 // TODO: Is this horizontal or vertical?!
6716 autoscroll_horizontally = editor.autoscroll_vertically(
6717 bounds,
6718 line_height,
6719 max_scroll_top,
6720 window,
6721 cx,
6722 );
6723 snapshot = editor.snapshot(window, cx);
6724 });
6725
6726 let mut scroll_position = snapshot.scroll_position();
6727 // The scroll position is a fractional point, the whole number of which represents
6728 // the top of the window in terms of display rows.
6729 let start_row = DisplayRow(scroll_position.y as u32);
6730 let max_row = snapshot.max_point().row();
6731 let end_row = cmp::min(
6732 (scroll_position.y + height_in_lines).ceil() as u32,
6733 max_row.next_row().0,
6734 );
6735 let end_row = DisplayRow(end_row);
6736
6737 let row_infos = snapshot
6738 .row_infos(start_row)
6739 .take((start_row..end_row).len())
6740 .collect::<Vec<RowInfo>>();
6741 let is_row_soft_wrapped = |row: usize| {
6742 row_infos
6743 .get(row)
6744 .map_or(true, |info| info.buffer_row.is_none())
6745 };
6746
6747 let start_anchor = if start_row == Default::default() {
6748 Anchor::min()
6749 } else {
6750 snapshot.buffer_snapshot.anchor_before(
6751 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6752 )
6753 };
6754 let end_anchor = if end_row > max_row {
6755 Anchor::max()
6756 } else {
6757 snapshot.buffer_snapshot.anchor_before(
6758 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6759 )
6760 };
6761
6762 let mut highlighted_rows = self
6763 .editor
6764 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6765
6766 let is_light = cx.theme().appearance().is_light();
6767
6768 for (ix, row_info) in row_infos.iter().enumerate() {
6769 let Some(diff_status) = row_info.diff_status else {
6770 continue;
6771 };
6772
6773 let background_color = match diff_status.kind {
6774 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6775 DiffHunkStatusKind::Deleted => {
6776 cx.theme().colors().version_control_deleted
6777 }
6778 DiffHunkStatusKind::Modified => {
6779 debug_panic!("modified diff status for row info");
6780 continue;
6781 }
6782 };
6783
6784 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6785
6786 let hollow_highlight = LineHighlight {
6787 background: (background_color.opacity(if is_light {
6788 0.08
6789 } else {
6790 0.06
6791 }))
6792 .into(),
6793 border: Some(if is_light {
6794 background_color.opacity(0.48)
6795 } else {
6796 background_color.opacity(0.36)
6797 }),
6798 };
6799
6800 let filled_highlight =
6801 solid_background(background_color.opacity(hunk_opacity)).into();
6802
6803 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6804 hollow_highlight
6805 } else {
6806 filled_highlight
6807 };
6808
6809 highlighted_rows
6810 .entry(start_row + DisplayRow(ix as u32))
6811 .or_insert(background);
6812 }
6813
6814 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6815 start_anchor..end_anchor,
6816 &snapshot.display_snapshot,
6817 cx.theme().colors(),
6818 );
6819 let highlighted_gutter_ranges =
6820 self.editor.read(cx).gutter_highlights_in_range(
6821 start_anchor..end_anchor,
6822 &snapshot.display_snapshot,
6823 cx,
6824 );
6825
6826 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6827 start_anchor..end_anchor,
6828 &snapshot.display_snapshot,
6829 cx,
6830 );
6831
6832 let (local_selections, selected_buffer_ids): (
6833 Vec<Selection<Point>>,
6834 Vec<BufferId>,
6835 ) = self.editor.update(cx, |editor, cx| {
6836 let all_selections = editor.selections.all::<Point>(cx);
6837 let selected_buffer_ids = if editor.is_singleton(cx) {
6838 Vec::new()
6839 } else {
6840 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6841
6842 for selection in all_selections {
6843 for buffer_id in snapshot
6844 .buffer_snapshot
6845 .buffer_ids_for_range(selection.range())
6846 {
6847 if selected_buffer_ids.last() != Some(&buffer_id) {
6848 selected_buffer_ids.push(buffer_id);
6849 }
6850 }
6851 }
6852
6853 selected_buffer_ids
6854 };
6855
6856 let mut selections = editor
6857 .selections
6858 .disjoint_in_range(start_anchor..end_anchor, cx);
6859 selections.extend(editor.selections.pending(cx));
6860
6861 (selections, selected_buffer_ids)
6862 });
6863
6864 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6865 start_anchor,
6866 end_anchor,
6867 &local_selections,
6868 &snapshot,
6869 start_row,
6870 end_row,
6871 window,
6872 cx,
6873 );
6874
6875 let line_numbers = self.layout_line_numbers(
6876 Some(&gutter_hitbox),
6877 gutter_dimensions,
6878 line_height,
6879 scroll_position,
6880 start_row..end_row,
6881 &row_infos,
6882 newest_selection_head,
6883 &snapshot,
6884 window,
6885 cx,
6886 );
6887
6888 let mut expand_toggles =
6889 window.with_element_namespace("expand_toggles", |window| {
6890 self.layout_excerpt_gutter(
6891 &gutter_hitbox,
6892 line_height,
6893 scroll_position,
6894 &row_infos,
6895 window,
6896 cx,
6897 )
6898 });
6899
6900 let mut crease_toggles =
6901 window.with_element_namespace("crease_toggles", |window| {
6902 self.layout_crease_toggles(
6903 start_row..end_row,
6904 &row_infos,
6905 &active_rows,
6906 &snapshot,
6907 window,
6908 cx,
6909 )
6910 });
6911 let crease_trailers =
6912 window.with_element_namespace("crease_trailers", |window| {
6913 self.layout_crease_trailers(
6914 row_infos.iter().copied(),
6915 &snapshot,
6916 window,
6917 cx,
6918 )
6919 });
6920
6921 let display_hunks = self.layout_gutter_diff_hunks(
6922 line_height,
6923 &gutter_hitbox,
6924 start_row..end_row,
6925 &snapshot,
6926 window,
6927 cx,
6928 );
6929
6930 let mut line_layouts = Self::layout_lines(
6931 start_row..end_row,
6932 &snapshot,
6933 &self.style,
6934 editor_width,
6935 is_row_soft_wrapped,
6936 window,
6937 cx,
6938 );
6939
6940 let longest_line_blame_width = self
6941 .editor
6942 .update(cx, |editor, cx| {
6943 if !editor.show_git_blame_inline {
6944 return None;
6945 }
6946 let blame = editor.blame.as_ref()?;
6947 let blame_entry = blame
6948 .update(cx, |blame, cx| {
6949 let row_infos =
6950 snapshot.row_infos(snapshot.longest_row()).next()?;
6951 blame.blame_for_rows(&[row_infos], cx).next()
6952 })
6953 .flatten()?;
6954 let mut element = render_inline_blame_entry(
6955 self.editor.clone(),
6956 blame,
6957 blame_entry,
6958 &style,
6959 cx,
6960 );
6961 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6962 Some(
6963 element
6964 .layout_as_root(AvailableSpace::min_size(), window, cx)
6965 .width
6966 + inline_blame_padding,
6967 )
6968 })
6969 .unwrap_or(Pixels::ZERO);
6970
6971 let longest_line_width = layout_line(
6972 snapshot.longest_row(),
6973 &snapshot,
6974 &style,
6975 editor_width,
6976 is_row_soft_wrapped,
6977 window,
6978 cx,
6979 )
6980 .width;
6981
6982 let scrollbar_range_data = ScrollbarRangeData::new(
6983 scrollbar_bounds,
6984 letter_size,
6985 &snapshot,
6986 longest_line_width,
6987 longest_line_blame_width,
6988 &style,
6989 editor_width,
6990 cx,
6991 );
6992
6993 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6994 let mut scroll_width = scroll_range_bounds.size.width;
6995
6996 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6997 snapshot.sticky_header_excerpt(scroll_position.y)
6998 } else {
6999 None
7000 };
7001 let sticky_header_excerpt_id =
7002 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7003
7004 let blocks = window.with_element_namespace("blocks", |window| {
7005 self.render_blocks(
7006 start_row..end_row,
7007 &snapshot,
7008 &hitbox,
7009 &text_hitbox,
7010 editor_width,
7011 &mut scroll_width,
7012 &gutter_dimensions,
7013 em_width,
7014 gutter_dimensions.full_width(),
7015 line_height,
7016 &line_layouts,
7017 &local_selections,
7018 &selected_buffer_ids,
7019 is_row_soft_wrapped,
7020 sticky_header_excerpt_id,
7021 window,
7022 cx,
7023 )
7024 });
7025 let mut blocks = match blocks {
7026 Ok(blocks) => blocks,
7027 Err(resized_blocks) => {
7028 self.editor.update(cx, |editor, cx| {
7029 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7030 });
7031 return self.prepaint(None, bounds, &mut (), window, cx);
7032 }
7033 };
7034
7035 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7036 window.with_element_namespace("blocks", |window| {
7037 self.layout_sticky_buffer_header(
7038 sticky_header_excerpt,
7039 scroll_position.y,
7040 line_height,
7041 &snapshot,
7042 &hitbox,
7043 &selected_buffer_ids,
7044 &blocks,
7045 window,
7046 cx,
7047 )
7048 })
7049 });
7050
7051 let start_buffer_row =
7052 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7053 let end_buffer_row =
7054 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7055
7056 let scroll_max = point(
7057 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7058 max_row.as_f32(),
7059 );
7060
7061 self.editor.update(cx, |editor, cx| {
7062 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7063
7064 let autoscrolled = if autoscroll_horizontally {
7065 editor.autoscroll_horizontally(
7066 start_row,
7067 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7068 scroll_width,
7069 em_width,
7070 &line_layouts,
7071 cx,
7072 )
7073 } else {
7074 false
7075 };
7076
7077 if clamped || autoscrolled {
7078 snapshot = editor.snapshot(window, cx);
7079 scroll_position = snapshot.scroll_position();
7080 }
7081 });
7082
7083 let scroll_pixel_position = point(
7084 scroll_position.x * em_width,
7085 scroll_position.y * line_height,
7086 );
7087
7088 let indent_guides = self.layout_indent_guides(
7089 content_origin,
7090 text_hitbox.origin,
7091 start_buffer_row..end_buffer_row,
7092 scroll_pixel_position,
7093 line_height,
7094 &snapshot,
7095 window,
7096 cx,
7097 );
7098
7099 let crease_trailers =
7100 window.with_element_namespace("crease_trailers", |window| {
7101 self.prepaint_crease_trailers(
7102 crease_trailers,
7103 &line_layouts,
7104 line_height,
7105 content_origin,
7106 scroll_pixel_position,
7107 em_width,
7108 window,
7109 cx,
7110 )
7111 });
7112
7113 let (inline_completion_popover, inline_completion_popover_origin) = self
7114 .editor
7115 .update(cx, |editor, cx| {
7116 editor.render_edit_prediction_popover(
7117 &text_hitbox.bounds,
7118 content_origin,
7119 &snapshot,
7120 start_row..end_row,
7121 scroll_position.y,
7122 scroll_position.y + height_in_lines,
7123 &line_layouts,
7124 line_height,
7125 scroll_pixel_position,
7126 newest_selection_head,
7127 editor_width,
7128 &style,
7129 window,
7130 cx,
7131 )
7132 })
7133 .unzip();
7134
7135 let mut inline_diagnostics = self.layout_inline_diagnostics(
7136 &line_layouts,
7137 &crease_trailers,
7138 content_origin,
7139 scroll_pixel_position,
7140 inline_completion_popover_origin,
7141 start_row,
7142 end_row,
7143 line_height,
7144 em_width,
7145 &style,
7146 window,
7147 cx,
7148 );
7149
7150 let mut inline_blame = None;
7151 if let Some(newest_selection_head) = newest_selection_head {
7152 let display_row = newest_selection_head.row();
7153 if (start_row..end_row).contains(&display_row) {
7154 let line_ix = display_row.minus(start_row) as usize;
7155 let row_info = &row_infos[line_ix];
7156 let line_layout = &line_layouts[line_ix];
7157 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7158 inline_blame = self.layout_inline_blame(
7159 display_row,
7160 row_info,
7161 line_layout,
7162 crease_trailer_layout,
7163 em_width,
7164 content_origin,
7165 scroll_pixel_position,
7166 line_height,
7167 window,
7168 cx,
7169 );
7170 if inline_blame.is_some() {
7171 // Blame overrides inline diagnostics
7172 inline_diagnostics.remove(&display_row);
7173 }
7174 }
7175 }
7176
7177 let blamed_display_rows = self.layout_blame_entries(
7178 &row_infos,
7179 em_width,
7180 scroll_position,
7181 line_height,
7182 &gutter_hitbox,
7183 gutter_dimensions.git_blame_entries_width,
7184 window,
7185 cx,
7186 );
7187
7188 let scroll_max = point(
7189 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7190 max_scroll_top,
7191 );
7192
7193 self.editor.update(cx, |editor, cx| {
7194 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7195
7196 let autoscrolled = if autoscroll_horizontally {
7197 editor.autoscroll_horizontally(
7198 start_row,
7199 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7200 scroll_width,
7201 em_width,
7202 &line_layouts,
7203 cx,
7204 )
7205 } else {
7206 false
7207 };
7208
7209 if clamped || autoscrolled {
7210 snapshot = editor.snapshot(window, cx);
7211 scroll_position = snapshot.scroll_position();
7212 }
7213 });
7214
7215 let line_elements = self.prepaint_lines(
7216 start_row,
7217 &mut line_layouts,
7218 line_height,
7219 scroll_pixel_position,
7220 content_origin,
7221 window,
7222 cx,
7223 );
7224
7225 let mut block_start_rows = HashSet::default();
7226
7227 window.with_element_namespace("blocks", |window| {
7228 self.layout_blocks(
7229 &mut blocks,
7230 &mut block_start_rows,
7231 &hitbox,
7232 line_height,
7233 scroll_pixel_position,
7234 window,
7235 cx,
7236 );
7237 });
7238
7239 let cursors = self.collect_cursors(&snapshot, cx);
7240 let visible_row_range = start_row..end_row;
7241 let non_visible_cursors = cursors
7242 .iter()
7243 .any(|c| !visible_row_range.contains(&c.0.row()));
7244
7245 let visible_cursors = self.layout_visible_cursors(
7246 &snapshot,
7247 &selections,
7248 &block_start_rows,
7249 start_row..end_row,
7250 &line_layouts,
7251 &text_hitbox,
7252 content_origin,
7253 scroll_position,
7254 scroll_pixel_position,
7255 line_height,
7256 em_width,
7257 em_advance,
7258 autoscroll_containing_element,
7259 window,
7260 cx,
7261 );
7262
7263 let scrollbars_layout = self.layout_scrollbars(
7264 &snapshot,
7265 scrollbar_range_data,
7266 scroll_position,
7267 non_visible_cursors,
7268 window,
7269 cx,
7270 );
7271
7272 let gutter_settings = EditorSettings::get_global(cx).gutter;
7273
7274 let mut code_actions_indicator = None;
7275 if let Some(newest_selection_head) = newest_selection_head {
7276 let newest_selection_point =
7277 newest_selection_head.to_point(&snapshot.display_snapshot);
7278
7279 if (start_row..end_row).contains(&newest_selection_head.row()) {
7280 self.layout_cursor_popovers(
7281 line_height,
7282 &text_hitbox,
7283 content_origin,
7284 start_row,
7285 scroll_pixel_position,
7286 &line_layouts,
7287 newest_selection_head,
7288 newest_selection_point,
7289 &style,
7290 window,
7291 cx,
7292 );
7293
7294 let show_code_actions = snapshot
7295 .show_code_actions
7296 .unwrap_or(gutter_settings.code_actions);
7297 if show_code_actions {
7298 let newest_selection_point =
7299 newest_selection_head.to_point(&snapshot.display_snapshot);
7300 if !snapshot
7301 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7302 {
7303 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7304 MultiBufferRow(newest_selection_point.row),
7305 );
7306 if let Some((buffer, range)) = buffer {
7307 let buffer_id = buffer.remote_id();
7308 let row = range.start.row;
7309 let has_test_indicator = self
7310 .editor
7311 .read(cx)
7312 .tasks
7313 .contains_key(&(buffer_id, row));
7314
7315 let has_expand_indicator = row_infos
7316 .get(
7317 (newest_selection_head.row() - start_row).0
7318 as usize,
7319 )
7320 .is_some_and(|row_info| row_info.expand_info.is_some());
7321
7322 if !has_test_indicator && !has_expand_indicator {
7323 code_actions_indicator = self
7324 .layout_code_actions_indicator(
7325 line_height,
7326 newest_selection_head,
7327 scroll_pixel_position,
7328 &gutter_dimensions,
7329 &gutter_hitbox,
7330 &display_hunks,
7331 window,
7332 cx,
7333 );
7334 }
7335 }
7336 }
7337 }
7338 }
7339 }
7340
7341 self.layout_gutter_menu(
7342 line_height,
7343 &text_hitbox,
7344 content_origin,
7345 scroll_pixel_position,
7346 gutter_dimensions.width - gutter_dimensions.left_padding,
7347 window,
7348 cx,
7349 );
7350
7351 let test_indicators = if gutter_settings.runnables {
7352 self.layout_run_indicators(
7353 line_height,
7354 start_row..end_row,
7355 &row_infos,
7356 scroll_pixel_position,
7357 &gutter_dimensions,
7358 &gutter_hitbox,
7359 &display_hunks,
7360 &snapshot,
7361 window,
7362 cx,
7363 )
7364 } else {
7365 Vec::new()
7366 };
7367
7368 self.layout_signature_help(
7369 &hitbox,
7370 content_origin,
7371 scroll_pixel_position,
7372 newest_selection_head,
7373 start_row,
7374 &line_layouts,
7375 line_height,
7376 em_width,
7377 window,
7378 cx,
7379 );
7380
7381 if !cx.has_active_drag() {
7382 self.layout_hover_popovers(
7383 &snapshot,
7384 &hitbox,
7385 &text_hitbox,
7386 start_row..end_row,
7387 content_origin,
7388 scroll_pixel_position,
7389 &line_layouts,
7390 line_height,
7391 em_width,
7392 window,
7393 cx,
7394 );
7395 }
7396
7397 let mouse_context_menu = self.layout_mouse_context_menu(
7398 &snapshot,
7399 start_row..end_row,
7400 content_origin,
7401 window,
7402 cx,
7403 );
7404
7405 window.with_element_namespace("crease_toggles", |window| {
7406 self.prepaint_crease_toggles(
7407 &mut crease_toggles,
7408 line_height,
7409 &gutter_dimensions,
7410 gutter_settings,
7411 scroll_pixel_position,
7412 &gutter_hitbox,
7413 window,
7414 cx,
7415 )
7416 });
7417
7418 window.with_element_namespace("expand_toggles", |window| {
7419 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7420 });
7421
7422 let invisible_symbol_font_size = font_size / 2.;
7423 let tab_invisible = window
7424 .text_system()
7425 .shape_line(
7426 "→".into(),
7427 invisible_symbol_font_size,
7428 &[TextRun {
7429 len: "→".len(),
7430 font: self.style.text.font(),
7431 color: cx.theme().colors().editor_invisible,
7432 background_color: None,
7433 underline: None,
7434 strikethrough: None,
7435 }],
7436 )
7437 .unwrap();
7438 let space_invisible = window
7439 .text_system()
7440 .shape_line(
7441 "•".into(),
7442 invisible_symbol_font_size,
7443 &[TextRun {
7444 len: "•".len(),
7445 font: self.style.text.font(),
7446 color: cx.theme().colors().editor_invisible,
7447 background_color: None,
7448 underline: None,
7449 strikethrough: None,
7450 }],
7451 )
7452 .unwrap();
7453
7454 let mode = snapshot.mode;
7455
7456 let position_map = Rc::new(PositionMap {
7457 size: bounds.size,
7458 visible_row_range,
7459 scroll_pixel_position,
7460 scroll_max,
7461 line_layouts,
7462 line_height,
7463 em_width,
7464 em_advance,
7465 snapshot,
7466 gutter_hitbox: gutter_hitbox.clone(),
7467 text_hitbox: text_hitbox.clone(),
7468 });
7469
7470 self.editor.update(cx, |editor, _| {
7471 editor.last_position_map = Some(position_map.clone())
7472 });
7473
7474 let diff_hunk_controls = self.layout_diff_hunk_controls(
7475 start_row..end_row,
7476 &row_infos,
7477 &text_hitbox,
7478 &position_map,
7479 newest_selection_head,
7480 line_height,
7481 scroll_pixel_position,
7482 &display_hunks,
7483 self.editor.clone(),
7484 window,
7485 cx,
7486 );
7487
7488 EditorLayout {
7489 mode,
7490 position_map,
7491 visible_display_row_range: start_row..end_row,
7492 wrap_guides,
7493 indent_guides,
7494 hitbox,
7495 gutter_hitbox,
7496 display_hunks,
7497 content_origin,
7498 scrollbars_layout,
7499 active_rows,
7500 highlighted_rows,
7501 highlighted_ranges,
7502 highlighted_gutter_ranges,
7503 redacted_ranges,
7504 line_elements,
7505 line_numbers,
7506 blamed_display_rows,
7507 inline_diagnostics,
7508 inline_blame,
7509 blocks,
7510 cursors,
7511 visible_cursors,
7512 selections,
7513 inline_completion_popover,
7514 diff_hunk_controls,
7515 mouse_context_menu,
7516 test_indicators,
7517 code_actions_indicator,
7518 crease_toggles,
7519 crease_trailers,
7520 tab_invisible,
7521 space_invisible,
7522 sticky_buffer_header,
7523 expand_toggles,
7524 }
7525 })
7526 })
7527 })
7528 }
7529
7530 fn paint(
7531 &mut self,
7532 _: Option<&GlobalElementId>,
7533 bounds: Bounds<gpui::Pixels>,
7534 _: &mut Self::RequestLayoutState,
7535 layout: &mut Self::PrepaintState,
7536 window: &mut Window,
7537 cx: &mut App,
7538 ) {
7539 let focus_handle = self.editor.focus_handle(cx);
7540 let key_context = self
7541 .editor
7542 .update(cx, |editor, cx| editor.key_context(window, cx));
7543
7544 window.set_key_context(key_context);
7545 window.handle_input(
7546 &focus_handle,
7547 ElementInputHandler::new(bounds, self.editor.clone()),
7548 cx,
7549 );
7550 self.register_actions(window, cx);
7551 self.register_key_listeners(window, cx, layout);
7552
7553 let text_style = TextStyleRefinement {
7554 font_size: Some(self.style.text.font_size),
7555 line_height: Some(self.style.text.line_height),
7556 ..Default::default()
7557 };
7558 let rem_size = self.rem_size(cx);
7559 window.with_rem_size(rem_size, |window| {
7560 window.with_text_style(Some(text_style), |window| {
7561 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7562 self.paint_mouse_listeners(layout, window, cx);
7563 self.paint_background(layout, window, cx);
7564 self.paint_indent_guides(layout, window, cx);
7565
7566 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7567 self.paint_blamed_display_rows(layout, window, cx);
7568 self.paint_line_numbers(layout, window, cx);
7569 }
7570
7571 self.paint_text(layout, window, cx);
7572
7573 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7574 self.paint_gutter_highlights(layout, window, cx);
7575 self.paint_gutter_indicators(layout, window, cx);
7576 }
7577
7578 if !layout.blocks.is_empty() {
7579 window.with_element_namespace("blocks", |window| {
7580 self.paint_blocks(layout, window, cx);
7581 });
7582 }
7583
7584 window.with_element_namespace("blocks", |window| {
7585 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7586 sticky_header.paint(window, cx)
7587 }
7588 });
7589
7590 self.paint_scrollbars(layout, window, cx);
7591 self.paint_inline_completion_popover(layout, window, cx);
7592 self.paint_mouse_context_menu(layout, window, cx);
7593 });
7594 })
7595 })
7596 }
7597}
7598
7599pub(super) fn gutter_bounds(
7600 editor_bounds: Bounds<Pixels>,
7601 gutter_dimensions: GutterDimensions,
7602) -> Bounds<Pixels> {
7603 Bounds {
7604 origin: editor_bounds.origin,
7605 size: size(gutter_dimensions.width, editor_bounds.size.height),
7606 }
7607}
7608
7609struct ScrollbarRangeData {
7610 scrollbar_bounds: Bounds<Pixels>,
7611 scroll_range: Bounds<Pixels>,
7612 letter_size: Size<Pixels>,
7613}
7614
7615impl ScrollbarRangeData {
7616 pub fn new(
7617 scrollbar_bounds: Bounds<Pixels>,
7618 letter_size: Size<Pixels>,
7619 snapshot: &EditorSnapshot,
7620 longest_line_width: Pixels,
7621 longest_line_blame_width: Pixels,
7622 style: &EditorStyle,
7623 editor_width: Pixels,
7624 cx: &mut App,
7625 ) -> ScrollbarRangeData {
7626 // TODO: Simplify this function down, it requires a lot of parameters
7627 let max_row = snapshot.max_point().row();
7628 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7629
7630 let settings = EditorSettings::get_global(cx);
7631 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7632 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7633 ScrollBeyondLastLine::Off => px(1.),
7634 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7635 };
7636
7637 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7638 letter_size.width + style.scrollbar_width
7639 } else {
7640 px(0.0)
7641 };
7642
7643 let overscroll = size(
7644 right_margin + longest_line_blame_width,
7645 letter_size.height * scroll_beyond_last_line,
7646 );
7647
7648 let scroll_range = Bounds {
7649 origin: scrollbar_bounds.origin,
7650 size: text_bounds_size + overscroll,
7651 };
7652
7653 ScrollbarRangeData {
7654 scrollbar_bounds,
7655 scroll_range,
7656 letter_size,
7657 }
7658 }
7659}
7660
7661impl IntoElement for EditorElement {
7662 type Element = Self;
7663
7664 fn into_element(self) -> Self::Element {
7665 self
7666 }
7667}
7668
7669pub struct EditorLayout {
7670 position_map: Rc<PositionMap>,
7671 hitbox: Hitbox,
7672 gutter_hitbox: Hitbox,
7673 content_origin: gpui::Point<Pixels>,
7674 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7675 mode: EditorMode,
7676 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7677 indent_guides: Option<Vec<IndentGuideLayout>>,
7678 visible_display_row_range: Range<DisplayRow>,
7679 active_rows: BTreeMap<DisplayRow, bool>,
7680 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7681 line_elements: SmallVec<[AnyElement; 1]>,
7682 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7683 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7684 blamed_display_rows: Option<Vec<AnyElement>>,
7685 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7686 inline_blame: Option<AnyElement>,
7687 blocks: Vec<BlockLayout>,
7688 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7689 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7690 redacted_ranges: Vec<Range<DisplayPoint>>,
7691 cursors: Vec<(DisplayPoint, Hsla)>,
7692 visible_cursors: Vec<CursorLayout>,
7693 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7694 code_actions_indicator: Option<AnyElement>,
7695 test_indicators: Vec<AnyElement>,
7696 crease_toggles: Vec<Option<AnyElement>>,
7697 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7698 diff_hunk_controls: Vec<AnyElement>,
7699 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7700 inline_completion_popover: Option<AnyElement>,
7701 mouse_context_menu: Option<AnyElement>,
7702 tab_invisible: ShapedLine,
7703 space_invisible: ShapedLine,
7704 sticky_buffer_header: Option<AnyElement>,
7705}
7706
7707impl EditorLayout {
7708 fn line_end_overshoot(&self) -> Pixels {
7709 0.15 * self.position_map.line_height
7710 }
7711}
7712
7713struct LineNumberLayout {
7714 shaped_line: ShapedLine,
7715 hitbox: Option<Hitbox>,
7716 display_row: DisplayRow,
7717}
7718
7719struct ColoredRange<T> {
7720 start: T,
7721 end: T,
7722 color: Hsla,
7723}
7724
7725#[derive(Clone)]
7726struct ScrollbarLayout {
7727 hitbox: Hitbox,
7728 visible_range: Range<f32>,
7729 visible: bool,
7730 text_unit_size: Pixels,
7731 thumb_size: Pixels,
7732 axis: Axis,
7733}
7734
7735impl ScrollbarLayout {
7736 const BORDER_WIDTH: Pixels = px(1.0);
7737 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7738 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7739 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7740
7741 fn thumb_bounds(&self) -> Bounds<Pixels> {
7742 match self.axis {
7743 Axis::Vertical => {
7744 let thumb_top = self.y_for_row(self.visible_range.start);
7745 let thumb_bottom = thumb_top + self.thumb_size;
7746 Bounds::from_corners(
7747 point(self.hitbox.left(), thumb_top),
7748 point(self.hitbox.right(), thumb_bottom),
7749 )
7750 }
7751 Axis::Horizontal => {
7752 let thumb_left =
7753 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7754 let thumb_right = thumb_left + self.thumb_size;
7755 Bounds::from_corners(
7756 point(thumb_left, self.hitbox.top()),
7757 point(thumb_right, self.hitbox.bottom()),
7758 )
7759 }
7760 }
7761 }
7762
7763 fn y_for_row(&self, row: f32) -> Pixels {
7764 self.hitbox.top() + row * self.text_unit_size
7765 }
7766
7767 fn marker_quads_for_ranges(
7768 &self,
7769 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7770 column: Option<usize>,
7771 ) -> Vec<PaintQuad> {
7772 struct MinMax {
7773 min: Pixels,
7774 max: Pixels,
7775 }
7776 let (x_range, height_limit) = if let Some(column) = column {
7777 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7778 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7779 let end = start + column_width;
7780 (
7781 Range { start, end },
7782 MinMax {
7783 min: Self::MIN_MARKER_HEIGHT,
7784 max: px(f32::MAX),
7785 },
7786 )
7787 } else {
7788 (
7789 Range {
7790 start: Self::BORDER_WIDTH,
7791 end: self.hitbox.size.width,
7792 },
7793 MinMax {
7794 min: Self::LINE_MARKER_HEIGHT,
7795 max: Self::LINE_MARKER_HEIGHT,
7796 },
7797 )
7798 };
7799
7800 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7801 let mut pixel_ranges = row_ranges
7802 .into_iter()
7803 .map(|range| {
7804 let start_y = row_to_y(range.start);
7805 let end_y = row_to_y(range.end)
7806 + self
7807 .text_unit_size
7808 .max(height_limit.min)
7809 .min(height_limit.max);
7810 ColoredRange {
7811 start: start_y,
7812 end: end_y,
7813 color: range.color,
7814 }
7815 })
7816 .peekable();
7817
7818 let mut quads = Vec::new();
7819 while let Some(mut pixel_range) = pixel_ranges.next() {
7820 while let Some(next_pixel_range) = pixel_ranges.peek() {
7821 if pixel_range.end >= next_pixel_range.start - px(1.0)
7822 && pixel_range.color == next_pixel_range.color
7823 {
7824 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7825 pixel_ranges.next();
7826 } else {
7827 break;
7828 }
7829 }
7830
7831 let bounds = Bounds::from_corners(
7832 point(x_range.start, pixel_range.start),
7833 point(x_range.end, pixel_range.end),
7834 );
7835 quads.push(quad(
7836 bounds,
7837 Corners::default(),
7838 pixel_range.color,
7839 Edges::default(),
7840 Hsla::transparent_black(),
7841 ));
7842 }
7843
7844 quads
7845 }
7846}
7847
7848struct CreaseTrailerLayout {
7849 element: AnyElement,
7850 bounds: Bounds<Pixels>,
7851}
7852
7853pub(crate) struct PositionMap {
7854 pub size: Size<Pixels>,
7855 pub line_height: Pixels,
7856 pub scroll_pixel_position: gpui::Point<Pixels>,
7857 pub scroll_max: gpui::Point<f32>,
7858 pub em_width: Pixels,
7859 pub em_advance: Pixels,
7860 pub visible_row_range: Range<DisplayRow>,
7861 pub line_layouts: Vec<LineWithInvisibles>,
7862 pub snapshot: EditorSnapshot,
7863 pub text_hitbox: Hitbox,
7864 pub gutter_hitbox: Hitbox,
7865}
7866
7867#[derive(Debug, Copy, Clone)]
7868pub struct PointForPosition {
7869 pub previous_valid: DisplayPoint,
7870 pub next_valid: DisplayPoint,
7871 pub exact_unclipped: DisplayPoint,
7872 pub column_overshoot_after_line_end: u32,
7873}
7874
7875impl PointForPosition {
7876 pub fn as_valid(&self) -> Option<DisplayPoint> {
7877 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7878 Some(self.previous_valid)
7879 } else {
7880 None
7881 }
7882 }
7883}
7884
7885impl PositionMap {
7886 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7887 let text_bounds = self.text_hitbox.bounds;
7888 let scroll_position = self.snapshot.scroll_position();
7889 let position = position - text_bounds.origin;
7890 let y = position.y.max(px(0.)).min(self.size.height);
7891 let x = position.x + (scroll_position.x * self.em_width);
7892 let row = ((y / self.line_height) + scroll_position.y) as u32;
7893
7894 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7895 .line_layouts
7896 .get(row as usize - scroll_position.y as usize)
7897 {
7898 if let Some(ix) = line.index_for_x(x) {
7899 (ix as u32, px(0.))
7900 } else {
7901 (line.len as u32, px(0.).max(x - line.width))
7902 }
7903 } else {
7904 (0, x)
7905 };
7906
7907 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7908 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7909 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7910
7911 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7912 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7913 PointForPosition {
7914 previous_valid,
7915 next_valid,
7916 exact_unclipped,
7917 column_overshoot_after_line_end,
7918 }
7919 }
7920}
7921
7922struct BlockLayout {
7923 id: BlockId,
7924 row: Option<DisplayRow>,
7925 element: AnyElement,
7926 available_space: Size<AvailableSpace>,
7927 style: BlockStyle,
7928 is_buffer_header: bool,
7929}
7930
7931pub fn layout_line(
7932 row: DisplayRow,
7933 snapshot: &EditorSnapshot,
7934 style: &EditorStyle,
7935 text_width: Pixels,
7936 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7937 window: &mut Window,
7938 cx: &mut App,
7939) -> LineWithInvisibles {
7940 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7941 LineWithInvisibles::from_chunks(
7942 chunks,
7943 &style,
7944 MAX_LINE_LEN,
7945 1,
7946 snapshot.mode,
7947 text_width,
7948 is_row_soft_wrapped,
7949 window,
7950 cx,
7951 )
7952 .pop()
7953 .unwrap()
7954}
7955
7956#[derive(Debug)]
7957pub struct IndentGuideLayout {
7958 origin: gpui::Point<Pixels>,
7959 length: Pixels,
7960 single_indent_width: Pixels,
7961 depth: u32,
7962 active: bool,
7963 settings: IndentGuideSettings,
7964}
7965
7966pub struct CursorLayout {
7967 origin: gpui::Point<Pixels>,
7968 block_width: Pixels,
7969 line_height: Pixels,
7970 color: Hsla,
7971 shape: CursorShape,
7972 block_text: Option<ShapedLine>,
7973 cursor_name: Option<AnyElement>,
7974}
7975
7976#[derive(Debug)]
7977pub struct CursorName {
7978 string: SharedString,
7979 color: Hsla,
7980 is_top_row: bool,
7981}
7982
7983impl CursorLayout {
7984 pub fn new(
7985 origin: gpui::Point<Pixels>,
7986 block_width: Pixels,
7987 line_height: Pixels,
7988 color: Hsla,
7989 shape: CursorShape,
7990 block_text: Option<ShapedLine>,
7991 ) -> CursorLayout {
7992 CursorLayout {
7993 origin,
7994 block_width,
7995 line_height,
7996 color,
7997 shape,
7998 block_text,
7999 cursor_name: None,
8000 }
8001 }
8002
8003 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8004 Bounds {
8005 origin: self.origin + origin,
8006 size: size(self.block_width, self.line_height),
8007 }
8008 }
8009
8010 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8011 match self.shape {
8012 CursorShape::Bar => Bounds {
8013 origin: self.origin + origin,
8014 size: size(px(2.0), self.line_height),
8015 },
8016 CursorShape::Block | CursorShape::Hollow => Bounds {
8017 origin: self.origin + origin,
8018 size: size(self.block_width, self.line_height),
8019 },
8020 CursorShape::Underline => Bounds {
8021 origin: self.origin
8022 + origin
8023 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8024 size: size(self.block_width, px(2.0)),
8025 },
8026 }
8027 }
8028
8029 pub fn layout(
8030 &mut self,
8031 origin: gpui::Point<Pixels>,
8032 cursor_name: Option<CursorName>,
8033 window: &mut Window,
8034 cx: &mut App,
8035 ) {
8036 if let Some(cursor_name) = cursor_name {
8037 let bounds = self.bounds(origin);
8038 let text_size = self.line_height / 1.5;
8039
8040 let name_origin = if cursor_name.is_top_row {
8041 point(bounds.right() - px(1.), bounds.top())
8042 } else {
8043 match self.shape {
8044 CursorShape::Bar => point(
8045 bounds.right() - px(2.),
8046 bounds.top() - text_size / 2. - px(1.),
8047 ),
8048 _ => point(
8049 bounds.right() - px(1.),
8050 bounds.top() - text_size / 2. - px(1.),
8051 ),
8052 }
8053 };
8054 let mut name_element = div()
8055 .bg(self.color)
8056 .text_size(text_size)
8057 .px_0p5()
8058 .line_height(text_size + px(2.))
8059 .text_color(cursor_name.color)
8060 .child(cursor_name.string.clone())
8061 .into_any_element();
8062
8063 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8064
8065 self.cursor_name = Some(name_element);
8066 }
8067 }
8068
8069 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8070 let bounds = self.bounds(origin);
8071
8072 //Draw background or border quad
8073 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8074 outline(bounds, self.color)
8075 } else {
8076 fill(bounds, self.color)
8077 };
8078
8079 if let Some(name) = &mut self.cursor_name {
8080 name.paint(window, cx);
8081 }
8082
8083 window.paint_quad(cursor);
8084
8085 if let Some(block_text) = &self.block_text {
8086 block_text
8087 .paint(self.origin + origin, self.line_height, window, cx)
8088 .log_err();
8089 }
8090 }
8091
8092 pub fn shape(&self) -> CursorShape {
8093 self.shape
8094 }
8095}
8096
8097#[derive(Debug)]
8098pub struct HighlightedRange {
8099 pub start_y: Pixels,
8100 pub line_height: Pixels,
8101 pub lines: Vec<HighlightedRangeLine>,
8102 pub color: Hsla,
8103 pub corner_radius: Pixels,
8104}
8105
8106#[derive(Debug)]
8107pub struct HighlightedRangeLine {
8108 pub start_x: Pixels,
8109 pub end_x: Pixels,
8110}
8111
8112impl HighlightedRange {
8113 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8114 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8115 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8116 self.paint_lines(
8117 self.start_y + self.line_height,
8118 &self.lines[1..],
8119 bounds,
8120 window,
8121 );
8122 } else {
8123 self.paint_lines(self.start_y, &self.lines, bounds, window);
8124 }
8125 }
8126
8127 fn paint_lines(
8128 &self,
8129 start_y: Pixels,
8130 lines: &[HighlightedRangeLine],
8131 _bounds: Bounds<Pixels>,
8132 window: &mut Window,
8133 ) {
8134 if lines.is_empty() {
8135 return;
8136 }
8137
8138 let first_line = lines.first().unwrap();
8139 let last_line = lines.last().unwrap();
8140
8141 let first_top_left = point(first_line.start_x, start_y);
8142 let first_top_right = point(first_line.end_x, start_y);
8143
8144 let curve_height = point(Pixels::ZERO, self.corner_radius);
8145 let curve_width = |start_x: Pixels, end_x: Pixels| {
8146 let max = (end_x - start_x) / 2.;
8147 let width = if max < self.corner_radius {
8148 max
8149 } else {
8150 self.corner_radius
8151 };
8152
8153 point(width, Pixels::ZERO)
8154 };
8155
8156 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8157 let mut builder = gpui::PathBuilder::fill();
8158 builder.move_to(first_top_right - top_curve_width);
8159 builder.curve_to(first_top_right + curve_height, first_top_right);
8160
8161 let mut iter = lines.iter().enumerate().peekable();
8162 while let Some((ix, line)) = iter.next() {
8163 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8164
8165 if let Some((_, next_line)) = iter.peek() {
8166 let next_top_right = point(next_line.end_x, bottom_right.y);
8167
8168 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8169 Ordering::Equal => {
8170 builder.line_to(bottom_right);
8171 }
8172 Ordering::Less => {
8173 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8174 builder.line_to(bottom_right - curve_height);
8175 if self.corner_radius > Pixels::ZERO {
8176 builder.curve_to(bottom_right - curve_width, bottom_right);
8177 }
8178 builder.line_to(next_top_right + curve_width);
8179 if self.corner_radius > Pixels::ZERO {
8180 builder.curve_to(next_top_right + curve_height, next_top_right);
8181 }
8182 }
8183 Ordering::Greater => {
8184 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8185 builder.line_to(bottom_right - curve_height);
8186 if self.corner_radius > Pixels::ZERO {
8187 builder.curve_to(bottom_right + curve_width, bottom_right);
8188 }
8189 builder.line_to(next_top_right - curve_width);
8190 if self.corner_radius > Pixels::ZERO {
8191 builder.curve_to(next_top_right + curve_height, next_top_right);
8192 }
8193 }
8194 }
8195 } else {
8196 let curve_width = curve_width(line.start_x, line.end_x);
8197 builder.line_to(bottom_right - curve_height);
8198 if self.corner_radius > Pixels::ZERO {
8199 builder.curve_to(bottom_right - curve_width, bottom_right);
8200 }
8201
8202 let bottom_left = point(line.start_x, bottom_right.y);
8203 builder.line_to(bottom_left + curve_width);
8204 if self.corner_radius > Pixels::ZERO {
8205 builder.curve_to(bottom_left - curve_height, bottom_left);
8206 }
8207 }
8208 }
8209
8210 if first_line.start_x > last_line.start_x {
8211 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8212 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8213 builder.line_to(second_top_left + curve_height);
8214 if self.corner_radius > Pixels::ZERO {
8215 builder.curve_to(second_top_left + curve_width, second_top_left);
8216 }
8217 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8218 builder.line_to(first_bottom_left - curve_width);
8219 if self.corner_radius > Pixels::ZERO {
8220 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8221 }
8222 }
8223
8224 builder.line_to(first_top_left + curve_height);
8225 if self.corner_radius > Pixels::ZERO {
8226 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8227 }
8228 builder.line_to(first_top_right - top_curve_width);
8229
8230 if let Ok(path) = builder.build() {
8231 window.paint_path(path, self.color);
8232 }
8233 }
8234}
8235
8236enum CursorPopoverType {
8237 CodeContextMenu,
8238 EditPrediction,
8239}
8240
8241pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8242 (delta.pow(1.5) / 100.0).into()
8243}
8244
8245fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8246 (delta.pow(1.2) / 300.0).into()
8247}
8248
8249pub fn register_action<T: Action>(
8250 editor: &Entity<Editor>,
8251 window: &mut Window,
8252 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8253) {
8254 let editor = editor.clone();
8255 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8256 let action = action.downcast_ref().unwrap();
8257 if phase == DispatchPhase::Bubble {
8258 editor.update(cx, |editor, cx| {
8259 listener(editor, action, window, cx);
8260 })
8261 }
8262 })
8263}
8264
8265fn compute_auto_height_layout(
8266 editor: &mut Editor,
8267 max_lines: usize,
8268 max_line_number_width: Pixels,
8269 known_dimensions: Size<Option<Pixels>>,
8270 available_width: AvailableSpace,
8271 window: &mut Window,
8272 cx: &mut Context<Editor>,
8273) -> Option<Size<Pixels>> {
8274 let width = known_dimensions.width.or({
8275 if let AvailableSpace::Definite(available_width) = available_width {
8276 Some(available_width)
8277 } else {
8278 None
8279 }
8280 })?;
8281 if let Some(height) = known_dimensions.height {
8282 return Some(size(width, height));
8283 }
8284
8285 let style = editor.style.as_ref().unwrap();
8286 let font_id = window.text_system().resolve_font(&style.text.font());
8287 let font_size = style.text.font_size.to_pixels(window.rem_size());
8288 let line_height = style.text.line_height_in_pixels(window.rem_size());
8289 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8290
8291 let mut snapshot = editor.snapshot(window, cx);
8292 let gutter_dimensions = snapshot
8293 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8294 .unwrap_or_default();
8295
8296 editor.gutter_dimensions = gutter_dimensions;
8297 let text_width = width - gutter_dimensions.width;
8298 let overscroll = size(em_width, px(0.));
8299
8300 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8301 if editor.set_wrap_width(Some(editor_width), cx) {
8302 snapshot = editor.snapshot(window, cx);
8303 }
8304
8305 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8306 let height = scroll_height
8307 .max(line_height)
8308 .min(line_height * max_lines as f32);
8309
8310 Some(size(width, height))
8311}
8312
8313#[cfg(test)]
8314mod tests {
8315 use super::*;
8316 use crate::{
8317 display_map::{BlockPlacement, BlockProperties},
8318 editor_tests::{init_test, update_test_language_settings},
8319 Editor, MultiBuffer,
8320 };
8321 use gpui::{TestAppContext, VisualTestContext};
8322 use language::language_settings;
8323 use log::info;
8324 use std::num::NonZeroU32;
8325 use util::test::sample_text;
8326
8327 #[gpui::test]
8328 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8329 init_test(cx, |_| {});
8330 let window = cx.add_window(|window, cx| {
8331 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8332 Editor::new(EditorMode::Full, buffer, None, window, cx)
8333 });
8334
8335 let editor = window.root(cx).unwrap();
8336 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8337 let line_height = window
8338 .update(cx, |_, window, _| {
8339 style.text.line_height_in_pixels(window.rem_size())
8340 })
8341 .unwrap();
8342 let element = EditorElement::new(&editor, style);
8343 let snapshot = window
8344 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8345 .unwrap();
8346
8347 let layouts = cx
8348 .update_window(*window, |_, window, cx| {
8349 element.layout_line_numbers(
8350 None,
8351 GutterDimensions {
8352 left_padding: Pixels::ZERO,
8353 right_padding: Pixels::ZERO,
8354 width: px(30.0),
8355 margin: Pixels::ZERO,
8356 git_blame_entries_width: None,
8357 },
8358 line_height,
8359 gpui::Point::default(),
8360 DisplayRow(0)..DisplayRow(6),
8361 &(0..6)
8362 .map(|row| RowInfo {
8363 buffer_row: Some(row),
8364 ..Default::default()
8365 })
8366 .collect::<Vec<_>>(),
8367 Some(DisplayPoint::new(DisplayRow(0), 0)),
8368 &snapshot,
8369 window,
8370 cx,
8371 )
8372 })
8373 .unwrap();
8374 assert_eq!(layouts.len(), 6);
8375
8376 let relative_rows = window
8377 .update(cx, |editor, window, cx| {
8378 let snapshot = editor.snapshot(window, cx);
8379 element.calculate_relative_line_numbers(
8380 &snapshot,
8381 &(DisplayRow(0)..DisplayRow(6)),
8382 Some(DisplayRow(3)),
8383 )
8384 })
8385 .unwrap();
8386 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8387 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8388 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8389 // current line has no relative number
8390 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8391 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8392
8393 // works if cursor is before screen
8394 let relative_rows = window
8395 .update(cx, |editor, window, cx| {
8396 let snapshot = editor.snapshot(window, cx);
8397 element.calculate_relative_line_numbers(
8398 &snapshot,
8399 &(DisplayRow(3)..DisplayRow(6)),
8400 Some(DisplayRow(1)),
8401 )
8402 })
8403 .unwrap();
8404 assert_eq!(relative_rows.len(), 3);
8405 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8406 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8407 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8408
8409 // works if cursor is after screen
8410 let relative_rows = window
8411 .update(cx, |editor, window, cx| {
8412 let snapshot = editor.snapshot(window, cx);
8413 element.calculate_relative_line_numbers(
8414 &snapshot,
8415 &(DisplayRow(0)..DisplayRow(3)),
8416 Some(DisplayRow(6)),
8417 )
8418 })
8419 .unwrap();
8420 assert_eq!(relative_rows.len(), 3);
8421 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8422 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8423 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8424 }
8425
8426 #[gpui::test]
8427 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8428 init_test(cx, |_| {});
8429
8430 let window = cx.add_window(|window, cx| {
8431 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8432 Editor::new(EditorMode::Full, buffer, None, window, cx)
8433 });
8434 let cx = &mut VisualTestContext::from_window(*window, cx);
8435 let editor = window.root(cx).unwrap();
8436 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8437
8438 window
8439 .update(cx, |editor, window, cx| {
8440 editor.cursor_shape = CursorShape::Block;
8441 editor.change_selections(None, window, cx, |s| {
8442 s.select_ranges([
8443 Point::new(0, 0)..Point::new(1, 0),
8444 Point::new(3, 2)..Point::new(3, 3),
8445 Point::new(5, 6)..Point::new(6, 0),
8446 ]);
8447 });
8448 })
8449 .unwrap();
8450
8451 let (_, state) = cx.draw(
8452 point(px(500.), px(500.)),
8453 size(px(500.), px(500.)),
8454 |_, _| EditorElement::new(&editor, style),
8455 );
8456
8457 assert_eq!(state.selections.len(), 1);
8458 let local_selections = &state.selections[0].1;
8459 assert_eq!(local_selections.len(), 3);
8460 // moves cursor back one line
8461 assert_eq!(
8462 local_selections[0].head,
8463 DisplayPoint::new(DisplayRow(0), 6)
8464 );
8465 assert_eq!(
8466 local_selections[0].range,
8467 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8468 );
8469
8470 // moves cursor back one column
8471 assert_eq!(
8472 local_selections[1].range,
8473 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8474 );
8475 assert_eq!(
8476 local_selections[1].head,
8477 DisplayPoint::new(DisplayRow(3), 2)
8478 );
8479
8480 // leaves cursor on the max point
8481 assert_eq!(
8482 local_selections[2].range,
8483 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8484 );
8485 assert_eq!(
8486 local_selections[2].head,
8487 DisplayPoint::new(DisplayRow(6), 0)
8488 );
8489
8490 // active lines does not include 1 (even though the range of the selection does)
8491 assert_eq!(
8492 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8493 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8494 );
8495 }
8496
8497 #[gpui::test]
8498 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8499 init_test(cx, |_| {});
8500
8501 let window = cx.add_window(|window, cx| {
8502 let buffer = MultiBuffer::build_simple("", cx);
8503 Editor::new(EditorMode::Full, buffer, None, window, cx)
8504 });
8505 let cx = &mut VisualTestContext::from_window(*window, cx);
8506 let editor = window.root(cx).unwrap();
8507 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8508 window
8509 .update(cx, |editor, window, cx| {
8510 editor.set_placeholder_text("hello", cx);
8511 editor.insert_blocks(
8512 [BlockProperties {
8513 style: BlockStyle::Fixed,
8514 placement: BlockPlacement::Above(Anchor::min()),
8515 height: 3,
8516 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8517 priority: 0,
8518 }],
8519 None,
8520 cx,
8521 );
8522
8523 // Blur the editor so that it displays placeholder text.
8524 window.blur();
8525 })
8526 .unwrap();
8527
8528 let (_, state) = cx.draw(
8529 point(px(500.), px(500.)),
8530 size(px(500.), px(500.)),
8531 |_, _| EditorElement::new(&editor, style),
8532 );
8533 assert_eq!(state.position_map.line_layouts.len(), 4);
8534 assert_eq!(state.line_numbers.len(), 1);
8535 assert_eq!(
8536 state
8537 .line_numbers
8538 .get(&MultiBufferRow(0))
8539 .map(|line_number| line_number.shaped_line.text.as_ref()),
8540 Some("1")
8541 );
8542 }
8543
8544 #[gpui::test]
8545 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8546 const TAB_SIZE: u32 = 4;
8547
8548 let input_text = "\t \t|\t| a b";
8549 let expected_invisibles = vec![
8550 Invisible::Tab {
8551 line_start_offset: 0,
8552 line_end_offset: TAB_SIZE as usize,
8553 },
8554 Invisible::Whitespace {
8555 line_offset: TAB_SIZE as usize,
8556 },
8557 Invisible::Tab {
8558 line_start_offset: TAB_SIZE as usize + 1,
8559 line_end_offset: TAB_SIZE as usize * 2,
8560 },
8561 Invisible::Tab {
8562 line_start_offset: TAB_SIZE as usize * 2 + 1,
8563 line_end_offset: TAB_SIZE as usize * 3,
8564 },
8565 Invisible::Whitespace {
8566 line_offset: TAB_SIZE as usize * 3 + 1,
8567 },
8568 Invisible::Whitespace {
8569 line_offset: TAB_SIZE as usize * 3 + 3,
8570 },
8571 ];
8572 assert_eq!(
8573 expected_invisibles.len(),
8574 input_text
8575 .chars()
8576 .filter(|initial_char| initial_char.is_whitespace())
8577 .count(),
8578 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8579 );
8580
8581 for show_line_numbers in [true, false] {
8582 init_test(cx, |s| {
8583 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8584 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8585 });
8586
8587 let actual_invisibles = collect_invisibles_from_new_editor(
8588 cx,
8589 EditorMode::Full,
8590 input_text,
8591 px(500.0),
8592 show_line_numbers,
8593 );
8594
8595 assert_eq!(expected_invisibles, actual_invisibles);
8596 }
8597 }
8598
8599 #[gpui::test]
8600 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8601 init_test(cx, |s| {
8602 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8603 s.defaults.tab_size = NonZeroU32::new(4);
8604 });
8605
8606 for editor_mode_without_invisibles in [
8607 EditorMode::SingleLine { auto_width: false },
8608 EditorMode::AutoHeight { max_lines: 100 },
8609 ] {
8610 for show_line_numbers in [true, false] {
8611 let invisibles = collect_invisibles_from_new_editor(
8612 cx,
8613 editor_mode_without_invisibles,
8614 "\t\t\t| | a b",
8615 px(500.0),
8616 show_line_numbers,
8617 );
8618 assert!(invisibles.is_empty(),
8619 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8620 }
8621 }
8622 }
8623
8624 #[gpui::test]
8625 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8626 let tab_size = 4;
8627 let input_text = "a\tbcd ".repeat(9);
8628 let repeated_invisibles = [
8629 Invisible::Tab {
8630 line_start_offset: 1,
8631 line_end_offset: tab_size as usize,
8632 },
8633 Invisible::Whitespace {
8634 line_offset: tab_size as usize + 3,
8635 },
8636 Invisible::Whitespace {
8637 line_offset: tab_size as usize + 4,
8638 },
8639 Invisible::Whitespace {
8640 line_offset: tab_size as usize + 5,
8641 },
8642 Invisible::Whitespace {
8643 line_offset: tab_size as usize + 6,
8644 },
8645 Invisible::Whitespace {
8646 line_offset: tab_size as usize + 7,
8647 },
8648 ];
8649 let expected_invisibles = std::iter::once(repeated_invisibles)
8650 .cycle()
8651 .take(9)
8652 .flatten()
8653 .collect::<Vec<_>>();
8654 assert_eq!(
8655 expected_invisibles.len(),
8656 input_text
8657 .chars()
8658 .filter(|initial_char| initial_char.is_whitespace())
8659 .count(),
8660 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8661 );
8662 info!("Expected invisibles: {expected_invisibles:?}");
8663
8664 init_test(cx, |_| {});
8665
8666 // Put the same string with repeating whitespace pattern into editors of various size,
8667 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8668 let resize_step = 10.0;
8669 let mut editor_width = 200.0;
8670 while editor_width <= 1000.0 {
8671 for show_line_numbers in [true, false] {
8672 update_test_language_settings(cx, |s| {
8673 s.defaults.tab_size = NonZeroU32::new(tab_size);
8674 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8675 s.defaults.preferred_line_length = Some(editor_width as u32);
8676 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8677 });
8678
8679 let actual_invisibles = collect_invisibles_from_new_editor(
8680 cx,
8681 EditorMode::Full,
8682 &input_text,
8683 px(editor_width),
8684 show_line_numbers,
8685 );
8686
8687 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8688 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8689 let mut i = 0;
8690 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8691 i = actual_index;
8692 match expected_invisibles.get(i) {
8693 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8694 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8695 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8696 _ => {
8697 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8698 }
8699 },
8700 None => {
8701 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8702 }
8703 }
8704 }
8705 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8706 assert!(
8707 missing_expected_invisibles.is_empty(),
8708 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8709 );
8710
8711 editor_width += resize_step;
8712 }
8713 }
8714 }
8715
8716 fn collect_invisibles_from_new_editor(
8717 cx: &mut TestAppContext,
8718 editor_mode: EditorMode,
8719 input_text: &str,
8720 editor_width: Pixels,
8721 show_line_numbers: bool,
8722 ) -> Vec<Invisible> {
8723 info!(
8724 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8725 editor_width.0
8726 );
8727 let window = cx.add_window(|window, cx| {
8728 let buffer = MultiBuffer::build_simple(input_text, cx);
8729 Editor::new(editor_mode, buffer, None, window, cx)
8730 });
8731 let cx = &mut VisualTestContext::from_window(*window, cx);
8732 let editor = window.root(cx).unwrap();
8733
8734 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8735 window
8736 .update(cx, |editor, _, cx| {
8737 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8738 editor.set_wrap_width(Some(editor_width), cx);
8739 editor.set_show_line_numbers(show_line_numbers, cx);
8740 })
8741 .unwrap();
8742 let (_, state) = cx.draw(
8743 point(px(500.), px(500.)),
8744 size(px(500.), px(500.)),
8745 |_, _| EditorElement::new(&editor, style),
8746 );
8747 state
8748 .position_map
8749 .line_layouts
8750 .iter()
8751 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8752 .cloned()
8753 .collect()
8754 }
8755}
8756
8757fn diff_hunk_controls(
8758 row: u32,
8759 status: &DiffHunkStatus,
8760 hunk_range: Range<Anchor>,
8761 is_created_file: bool,
8762 line_height: Pixels,
8763 editor: &Entity<Editor>,
8764 cx: &mut App,
8765) -> AnyElement {
8766 h_flex()
8767 .h(line_height)
8768 .mr_1()
8769 .gap_1()
8770 .px_0p5()
8771 .pb_1()
8772 .border_x_1()
8773 .border_b_1()
8774 .border_color(cx.theme().colors().border_variant)
8775 .rounded_b_lg()
8776 .bg(cx.theme().colors().editor_background)
8777 .gap_1()
8778 .occlude()
8779 .shadow_md()
8780 .child(if status.has_secondary_hunk() {
8781 Button::new(("stage", row as u64), "Stage")
8782 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8783 .tooltip({
8784 let focus_handle = editor.focus_handle(cx);
8785 move |window, cx| {
8786 Tooltip::for_action_in(
8787 "Stage Hunk",
8788 &::git::ToggleStaged,
8789 &focus_handle,
8790 window,
8791 cx,
8792 )
8793 }
8794 })
8795 .on_click({
8796 let editor = editor.clone();
8797 move |_event, _window, cx| {
8798 editor.update(cx, |editor, cx| {
8799 editor.stage_or_unstage_diff_hunks(
8800 true,
8801 vec![hunk_range.start..hunk_range.start],
8802 cx,
8803 );
8804 });
8805 }
8806 })
8807 } else {
8808 Button::new(("unstage", row as u64), "Unstage")
8809 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8810 .tooltip({
8811 let focus_handle = editor.focus_handle(cx);
8812 move |window, cx| {
8813 Tooltip::for_action_in(
8814 "Unstage Hunk",
8815 &::git::ToggleStaged,
8816 &focus_handle,
8817 window,
8818 cx,
8819 )
8820 }
8821 })
8822 .on_click({
8823 let editor = editor.clone();
8824 move |_event, _window, cx| {
8825 editor.update(cx, |editor, cx| {
8826 editor.stage_or_unstage_diff_hunks(
8827 false,
8828 vec![hunk_range.start..hunk_range.start],
8829 cx,
8830 );
8831 });
8832 }
8833 })
8834 })
8835 .child(
8836 Button::new("restore", "Restore")
8837 .tooltip({
8838 let focus_handle = editor.focus_handle(cx);
8839 move |window, cx| {
8840 Tooltip::for_action_in(
8841 "Restore Hunk",
8842 &::git::Restore,
8843 &focus_handle,
8844 window,
8845 cx,
8846 )
8847 }
8848 })
8849 .on_click({
8850 let editor = editor.clone();
8851 move |_event, window, cx| {
8852 editor.update(cx, |editor, cx| {
8853 let snapshot = editor.snapshot(window, cx);
8854 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8855 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8856 });
8857 }
8858 })
8859 .disabled(is_created_file),
8860 )
8861 .when(
8862 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8863 |el| {
8864 el.child(
8865 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8866 .shape(IconButtonShape::Square)
8867 .icon_size(IconSize::Small)
8868 // .disabled(!has_multiple_hunks)
8869 .tooltip({
8870 let focus_handle = editor.focus_handle(cx);
8871 move |window, cx| {
8872 Tooltip::for_action_in(
8873 "Next Hunk",
8874 &GoToHunk,
8875 &focus_handle,
8876 window,
8877 cx,
8878 )
8879 }
8880 })
8881 .on_click({
8882 let editor = editor.clone();
8883 move |_event, window, cx| {
8884 editor.update(cx, |editor, cx| {
8885 let snapshot = editor.snapshot(window, cx);
8886 let position =
8887 hunk_range.end.to_point(&snapshot.buffer_snapshot);
8888 editor.go_to_hunk_before_or_after_position(
8889 &snapshot,
8890 position,
8891 Direction::Next,
8892 window,
8893 cx,
8894 );
8895 editor.expand_selected_diff_hunks(cx);
8896 });
8897 }
8898 }),
8899 )
8900 .child(
8901 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8902 .shape(IconButtonShape::Square)
8903 .icon_size(IconSize::Small)
8904 // .disabled(!has_multiple_hunks)
8905 .tooltip({
8906 let focus_handle = editor.focus_handle(cx);
8907 move |window, cx| {
8908 Tooltip::for_action_in(
8909 "Previous Hunk",
8910 &GoToPreviousHunk,
8911 &focus_handle,
8912 window,
8913 cx,
8914 )
8915 }
8916 })
8917 .on_click({
8918 let editor = editor.clone();
8919 move |_event, window, cx| {
8920 editor.update(cx, |editor, cx| {
8921 let snapshot = editor.snapshot(window, cx);
8922 let point =
8923 hunk_range.start.to_point(&snapshot.buffer_snapshot);
8924 editor.go_to_hunk_before_or_after_position(
8925 &snapshot,
8926 point,
8927 Direction::Prev,
8928 window,
8929 cx,
8930 );
8931 editor.expand_selected_diff_hunks(cx);
8932 });
8933 }
8934 }),
8935 )
8936 },
8937 )
8938 .into_any_element()
8939}