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, ExpandExcerpts, FocusedBlock, GoToHunk,
22 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
23 InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown,
24 PageUp, 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::{DiffHunkSecondaryStatus, 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, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
37 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
38 Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
39 Hsla, InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
40 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
41 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
42 Subscription, TextRun, TextStyleRefinement, Window,
43};
44use itertools::Itertools;
45use language::{
46 language_settings::{
47 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
48 ShowWhitespaceSetting,
49 },
50 ChunkRendererContext,
51};
52use lsp::DiagnosticSeverity;
53use multi_buffer::{
54 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
55 RowInfo,
56};
57use project::project_settings::{self, GitGutterSetting, ProjectSettings};
58use settings::Settings;
59use smallvec::{smallvec, SmallVec};
60use std::{
61 any::TypeId,
62 borrow::Cow,
63 cmp::{self, Ordering},
64 fmt::{self, Write},
65 iter, mem,
66 ops::{Deref, Range},
67 rc::Rc,
68 sync::Arc,
69};
70use sum_tree::Bias;
71use text::BufferId;
72use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
73use ui::{
74 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
75 POPOVER_Y_PADDING,
76};
77use unicode_segmentation::UnicodeSegmentation;
78use util::{debug_panic, maybe, RangeExt, ResultExt};
79use workspace::{item::Item, notifications::NotifyTaskExt};
80
81const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
82const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
83
84struct SelectionLayout {
85 head: DisplayPoint,
86 cursor_shape: CursorShape,
87 is_newest: bool,
88 is_local: bool,
89 range: Range<DisplayPoint>,
90 active_rows: Range<DisplayRow>,
91 user_name: Option<SharedString>,
92}
93
94impl SelectionLayout {
95 fn new<T: ToPoint + ToDisplayPoint + Clone>(
96 selection: Selection<T>,
97 line_mode: bool,
98 cursor_shape: CursorShape,
99 map: &DisplaySnapshot,
100 is_newest: bool,
101 is_local: bool,
102 user_name: Option<SharedString>,
103 ) -> Self {
104 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
105 let display_selection = point_selection.map(|p| p.to_display_point(map));
106 let mut range = display_selection.range();
107 let mut head = display_selection.head();
108 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
109 ..map.next_line_boundary(point_selection.end).1.row();
110
111 // vim visual line mode
112 if line_mode {
113 let point_range = map.expand_to_line(point_selection.range());
114 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
115 }
116
117 // any vim visual mode (including line mode)
118 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
119 && !range.is_empty()
120 && !selection.reversed
121 {
122 if head.column() > 0 {
123 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
124 } else if head.row().0 > 0 && head != map.max_point() {
125 head = map.clip_point(
126 DisplayPoint::new(
127 head.row().previous_row(),
128 map.line_len(head.row().previous_row()),
129 ),
130 Bias::Left,
131 );
132 // updating range.end is a no-op unless you're cursor is
133 // on the newline containing a multi-buffer divider
134 // in which case the clip_point may have moved the head up
135 // an additional row.
136 range.end = DisplayPoint::new(head.row().next_row(), 0);
137 active_rows.end = head.row();
138 }
139 }
140
141 Self {
142 head,
143 cursor_shape,
144 is_newest,
145 is_local,
146 range,
147 active_rows,
148 user_name,
149 }
150 }
151}
152
153pub struct EditorElement {
154 editor: Entity<Editor>,
155 style: EditorStyle,
156}
157
158type DisplayRowDelta = u32;
159
160impl EditorElement {
161 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
162
163 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
164 Self {
165 editor: editor.clone(),
166 style,
167 }
168 }
169
170 fn register_actions(&self, window: &mut Window, cx: &mut App) {
171 let editor = &self.editor;
172 editor.update(cx, |editor, cx| {
173 for action in editor.editor_actions.borrow().values() {
174 (action)(window, cx)
175 }
176 });
177
178 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
179 crate::clangd_ext::apply_related_actions(editor, window, cx);
180 register_action(editor, window, Editor::open_context_menu);
181 register_action(editor, window, Editor::move_left);
182 register_action(editor, window, Editor::move_right);
183 register_action(editor, window, Editor::move_down);
184 register_action(editor, window, Editor::move_down_by_lines);
185 register_action(editor, window, Editor::select_down_by_lines);
186 register_action(editor, window, Editor::move_up);
187 register_action(editor, window, Editor::move_up_by_lines);
188 register_action(editor, window, Editor::select_up_by_lines);
189 register_action(editor, window, Editor::select_page_down);
190 register_action(editor, window, Editor::select_page_up);
191 register_action(editor, window, Editor::cancel);
192 register_action(editor, window, Editor::newline);
193 register_action(editor, window, Editor::newline_above);
194 register_action(editor, window, Editor::newline_below);
195 register_action(editor, window, Editor::backspace);
196 register_action(editor, window, Editor::delete);
197 register_action(editor, window, Editor::tab);
198 register_action(editor, window, Editor::tab_prev);
199 register_action(editor, window, Editor::indent);
200 register_action(editor, window, Editor::outdent);
201 register_action(editor, window, Editor::autoindent);
202 register_action(editor, window, Editor::delete_line);
203 register_action(editor, window, Editor::join_lines);
204 register_action(editor, window, Editor::sort_lines_case_sensitive);
205 register_action(editor, window, Editor::sort_lines_case_insensitive);
206 register_action(editor, window, Editor::reverse_lines);
207 register_action(editor, window, Editor::shuffle_lines);
208 register_action(editor, window, Editor::convert_to_upper_case);
209 register_action(editor, window, Editor::convert_to_lower_case);
210 register_action(editor, window, Editor::convert_to_title_case);
211 register_action(editor, window, Editor::convert_to_snake_case);
212 register_action(editor, window, Editor::convert_to_kebab_case);
213 register_action(editor, window, Editor::convert_to_upper_camel_case);
214 register_action(editor, window, Editor::convert_to_lower_camel_case);
215 register_action(editor, window, Editor::convert_to_opposite_case);
216 register_action(editor, window, Editor::delete_to_previous_word_start);
217 register_action(editor, window, Editor::delete_to_previous_subword_start);
218 register_action(editor, window, Editor::delete_to_next_word_end);
219 register_action(editor, window, Editor::delete_to_next_subword_end);
220 register_action(editor, window, Editor::delete_to_beginning_of_line);
221 register_action(editor, window, Editor::delete_to_end_of_line);
222 register_action(editor, window, Editor::cut_to_end_of_line);
223 register_action(editor, window, Editor::duplicate_line_up);
224 register_action(editor, window, Editor::duplicate_line_down);
225 register_action(editor, window, Editor::duplicate_selection);
226 register_action(editor, window, Editor::move_line_up);
227 register_action(editor, window, Editor::move_line_down);
228 register_action(editor, window, Editor::transpose);
229 register_action(editor, window, Editor::rewrap);
230 register_action(editor, window, Editor::cut);
231 register_action(editor, window, Editor::kill_ring_cut);
232 register_action(editor, window, Editor::kill_ring_yank);
233 register_action(editor, window, Editor::copy);
234 register_action(editor, window, Editor::paste);
235 register_action(editor, window, Editor::undo);
236 register_action(editor, window, Editor::redo);
237 register_action(editor, window, Editor::move_page_up);
238 register_action(editor, window, Editor::move_page_down);
239 register_action(editor, window, Editor::next_screen);
240 register_action(editor, window, Editor::scroll_cursor_top);
241 register_action(editor, window, Editor::scroll_cursor_center);
242 register_action(editor, window, Editor::scroll_cursor_bottom);
243 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
244 register_action(editor, window, |editor, _: &LineDown, window, cx| {
245 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
246 });
247 register_action(editor, window, |editor, _: &LineUp, window, cx| {
248 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
249 });
250 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
251 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
252 });
253 register_action(
254 editor,
255 window,
256 |editor, HandleInput(text): &HandleInput, window, cx| {
257 if text.is_empty() {
258 return;
259 }
260 editor.handle_input(text, window, cx);
261 },
262 );
263 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
264 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
265 });
266 register_action(editor, window, |editor, _: &PageDown, window, cx| {
267 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
268 });
269 register_action(editor, window, |editor, _: &PageUp, window, cx| {
270 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
271 });
272 register_action(editor, window, Editor::move_to_previous_word_start);
273 register_action(editor, window, Editor::move_to_previous_subword_start);
274 register_action(editor, window, Editor::move_to_next_word_end);
275 register_action(editor, window, Editor::move_to_next_subword_end);
276 register_action(editor, window, Editor::move_to_beginning_of_line);
277 register_action(editor, window, Editor::move_to_end_of_line);
278 register_action(editor, window, Editor::move_to_start_of_paragraph);
279 register_action(editor, window, Editor::move_to_end_of_paragraph);
280 register_action(editor, window, Editor::move_to_beginning);
281 register_action(editor, window, Editor::move_to_end);
282 register_action(editor, window, Editor::move_to_start_of_excerpt);
283 register_action(editor, window, Editor::move_to_end_of_excerpt);
284 register_action(editor, window, Editor::select_up);
285 register_action(editor, window, Editor::select_down);
286 register_action(editor, window, Editor::select_left);
287 register_action(editor, window, Editor::select_right);
288 register_action(editor, window, Editor::select_to_previous_word_start);
289 register_action(editor, window, Editor::select_to_previous_subword_start);
290 register_action(editor, window, Editor::select_to_next_word_end);
291 register_action(editor, window, Editor::select_to_next_subword_end);
292 register_action(editor, window, Editor::select_to_beginning_of_line);
293 register_action(editor, window, Editor::select_to_end_of_line);
294 register_action(editor, window, Editor::select_to_start_of_paragraph);
295 register_action(editor, window, Editor::select_to_end_of_paragraph);
296 register_action(editor, window, Editor::select_to_start_of_excerpt);
297 register_action(editor, window, Editor::select_to_end_of_excerpt);
298 register_action(editor, window, Editor::select_to_beginning);
299 register_action(editor, window, Editor::select_to_end);
300 register_action(editor, window, Editor::select_all);
301 register_action(editor, window, |editor, action, window, cx| {
302 editor.select_all_matches(action, window, cx).log_err();
303 });
304 register_action(editor, window, Editor::select_line);
305 register_action(editor, window, Editor::split_selection_into_lines);
306 register_action(editor, window, Editor::add_selection_above);
307 register_action(editor, window, Editor::add_selection_below);
308 register_action(editor, window, |editor, action, window, cx| {
309 editor.select_next(action, window, cx).log_err();
310 });
311 register_action(editor, window, |editor, action, window, cx| {
312 editor.select_previous(action, window, cx).log_err();
313 });
314 register_action(editor, window, Editor::toggle_comments);
315 register_action(editor, window, Editor::select_larger_syntax_node);
316 register_action(editor, window, Editor::select_smaller_syntax_node);
317 register_action(editor, window, Editor::select_enclosing_symbol);
318 register_action(editor, window, Editor::move_to_enclosing_bracket);
319 register_action(editor, window, Editor::undo_selection);
320 register_action(editor, window, Editor::redo_selection);
321 if !editor.read(cx).is_singleton(cx) {
322 register_action(editor, window, Editor::expand_excerpts);
323 register_action(editor, window, Editor::expand_excerpts_up);
324 register_action(editor, window, Editor::expand_excerpts_down);
325 }
326 register_action(editor, window, Editor::go_to_diagnostic);
327 register_action(editor, window, Editor::go_to_prev_diagnostic);
328 register_action(editor, window, Editor::go_to_next_hunk);
329 register_action(editor, window, Editor::go_to_prev_hunk);
330 register_action(editor, window, |editor, action, window, cx| {
331 editor
332 .go_to_definition(action, window, cx)
333 .detach_and_log_err(cx);
334 });
335 register_action(editor, window, |editor, action, window, cx| {
336 editor
337 .go_to_definition_split(action, window, cx)
338 .detach_and_log_err(cx);
339 });
340 register_action(editor, window, |editor, action, window, cx| {
341 editor
342 .go_to_declaration(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_split(action, window, cx)
348 .detach_and_log_err(cx);
349 });
350 register_action(editor, window, |editor, action, window, cx| {
351 editor
352 .go_to_implementation(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_split(action, window, cx)
358 .detach_and_log_err(cx);
359 });
360 register_action(editor, window, |editor, action, window, cx| {
361 editor
362 .go_to_type_definition(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_split(action, window, cx)
368 .detach_and_log_err(cx);
369 });
370 register_action(editor, window, Editor::open_url);
371 register_action(editor, window, Editor::open_selected_filename);
372 register_action(editor, window, Editor::fold);
373 register_action(editor, window, Editor::fold_at_level);
374 register_action(editor, window, Editor::fold_all);
375 register_action(editor, window, Editor::fold_function_bodies);
376 register_action(editor, window, Editor::fold_at);
377 register_action(editor, window, Editor::fold_recursive);
378 register_action(editor, window, Editor::toggle_fold);
379 register_action(editor, window, Editor::toggle_fold_recursive);
380 register_action(editor, window, Editor::unfold_lines);
381 register_action(editor, window, Editor::unfold_recursive);
382 register_action(editor, window, Editor::unfold_all);
383 register_action(editor, window, Editor::unfold_at);
384 register_action(editor, window, Editor::fold_selected_ranges);
385 register_action(editor, window, Editor::set_mark);
386 register_action(editor, window, Editor::swap_selection_ends);
387 register_action(editor, window, Editor::show_completions);
388 register_action(editor, window, Editor::toggle_code_actions);
389 register_action(editor, window, Editor::open_excerpts);
390 register_action(editor, window, Editor::open_excerpts_in_split);
391 register_action(editor, window, Editor::open_proposed_changes_editor);
392 register_action(editor, window, Editor::toggle_soft_wrap);
393 register_action(editor, window, Editor::toggle_tab_bar);
394 register_action(editor, window, Editor::toggle_line_numbers);
395 register_action(editor, window, Editor::toggle_relative_line_numbers);
396 register_action(editor, window, Editor::toggle_indent_guides);
397 register_action(editor, window, Editor::toggle_inlay_hints);
398 register_action(editor, window, Editor::toggle_edit_predictions);
399 register_action(editor, window, Editor::toggle_inline_diagnostics);
400 register_action(editor, window, hover_popover::hover);
401 register_action(editor, window, Editor::reveal_in_finder);
402 register_action(editor, window, Editor::copy_path);
403 register_action(editor, window, Editor::copy_relative_path);
404 register_action(editor, window, Editor::copy_file_name);
405 register_action(editor, window, Editor::copy_file_name_without_extension);
406 register_action(editor, window, Editor::copy_highlight_json);
407 register_action(editor, window, Editor::copy_permalink_to_line);
408 register_action(editor, window, Editor::open_permalink_to_line);
409 register_action(editor, window, Editor::copy_file_location);
410 register_action(editor, window, Editor::toggle_git_blame);
411 register_action(editor, window, Editor::toggle_git_blame_inline);
412 register_action(editor, window, Editor::toggle_selected_diff_hunks);
413 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
414 register_action(editor, window, Editor::stage_and_next);
415 register_action(editor, window, Editor::unstage_and_next);
416 register_action(editor, window, Editor::expand_all_diff_hunks);
417
418 register_action(editor, window, |editor, action, window, cx| {
419 if let Some(task) = editor.format(action, window, cx) {
420 task.detach_and_notify_err(window, cx);
421 } else {
422 cx.propagate();
423 }
424 });
425 register_action(editor, window, |editor, action, window, cx| {
426 if let Some(task) = editor.format_selections(action, window, cx) {
427 task.detach_and_notify_err(window, cx);
428 } else {
429 cx.propagate();
430 }
431 });
432 register_action(editor, window, Editor::restart_language_server);
433 register_action(editor, window, Editor::show_character_palette);
434 register_action(editor, window, |editor, action, window, cx| {
435 if let Some(task) = editor.confirm_completion(action, window, cx) {
436 task.detach_and_notify_err(window, cx);
437 } else {
438 cx.propagate();
439 }
440 });
441 register_action(editor, window, |editor, action, window, cx| {
442 if let Some(task) = editor.compose_completion(action, window, cx) {
443 task.detach_and_notify_err(window, cx);
444 } else {
445 cx.propagate();
446 }
447 });
448 register_action(editor, window, |editor, action, window, cx| {
449 if let Some(task) = editor.confirm_code_action(action, window, cx) {
450 task.detach_and_notify_err(window, cx);
451 } else {
452 cx.propagate();
453 }
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 if let Some(task) = editor.rename(action, window, cx) {
457 task.detach_and_notify_err(window, cx);
458 } else {
459 cx.propagate();
460 }
461 });
462 register_action(editor, window, |editor, action, window, cx| {
463 if let Some(task) = editor.confirm_rename(action, window, cx) {
464 task.detach_and_notify_err(window, cx);
465 } else {
466 cx.propagate();
467 }
468 });
469 register_action(editor, window, |editor, action, window, cx| {
470 if let Some(task) = editor.find_all_references(action, window, cx) {
471 task.detach_and_log_err(cx);
472 } else {
473 cx.propagate();
474 }
475 });
476 register_action(editor, window, Editor::show_signature_help);
477 register_action(editor, window, Editor::next_edit_prediction);
478 register_action(editor, window, Editor::previous_edit_prediction);
479 register_action(editor, window, Editor::show_inline_completion);
480 register_action(editor, window, Editor::context_menu_first);
481 register_action(editor, window, Editor::context_menu_prev);
482 register_action(editor, window, Editor::context_menu_next);
483 register_action(editor, window, Editor::context_menu_last);
484 register_action(editor, window, Editor::display_cursor_names);
485 register_action(editor, window, Editor::unique_lines_case_insensitive);
486 register_action(editor, window, Editor::unique_lines_case_sensitive);
487 register_action(editor, window, Editor::accept_partial_inline_completion);
488 register_action(editor, window, Editor::accept_edit_prediction);
489 register_action(editor, window, Editor::restore_file);
490 register_action(editor, window, Editor::git_restore);
491 register_action(editor, window, Editor::apply_all_diff_hunks);
492 register_action(editor, window, Editor::apply_selected_diff_hunks);
493 register_action(editor, window, Editor::open_active_item_in_terminal);
494 register_action(editor, window, Editor::reload_file);
495 register_action(editor, window, Editor::spawn_nearest_task);
496 register_action(editor, window, Editor::insert_uuid_v4);
497 register_action(editor, window, Editor::insert_uuid_v7);
498 register_action(editor, window, Editor::open_selections_in_multibuffer);
499 }
500
501 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
502 let position_map = layout.position_map.clone();
503 window.on_key_event({
504 let editor = self.editor.clone();
505 move |event: &ModifiersChangedEvent, phase, window, cx| {
506 if phase != DispatchPhase::Bubble {
507 return;
508 }
509 editor.update(cx, |editor, cx| {
510 let inlay_hint_settings = inlay_hint_settings(
511 editor.selections.newest_anchor().head(),
512 &editor.buffer.read(cx).snapshot(cx),
513 cx,
514 );
515
516 if let Some(inlay_modifiers) = inlay_hint_settings
517 .toggle_on_modifiers_press
518 .as_ref()
519 .filter(|modifiers| modifiers.modified())
520 {
521 editor.refresh_inlay_hints(
522 InlayHintRefreshReason::ModifiersChanged(
523 inlay_modifiers == &event.modifiers,
524 ),
525 cx,
526 );
527 }
528
529 if editor.hover_state.focused(window, cx) {
530 return;
531 }
532
533 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
534 })
535 }
536 });
537 }
538
539 fn mouse_left_down(
540 editor: &mut Editor,
541 event: &MouseDownEvent,
542 hovered_hunk: Option<Range<Anchor>>,
543 position_map: &PositionMap,
544 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
545 window: &mut Window,
546 cx: &mut Context<Editor>,
547 ) {
548 if window.default_prevented() {
549 return;
550 }
551
552 let text_hitbox = &position_map.text_hitbox;
553 let gutter_hitbox = &position_map.gutter_hitbox;
554 let mut click_count = event.click_count;
555 let mut modifiers = event.modifiers;
556
557 if let Some(hovered_hunk) = hovered_hunk {
558 editor.toggle_single_diff_hunk(hovered_hunk, cx);
559 cx.notify();
560 return;
561 } else if gutter_hitbox.is_hovered(window) {
562 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
563 } else if !text_hitbox.is_hovered(window) {
564 return;
565 }
566
567 let is_singleton = editor.buffer().read(cx).is_singleton();
568
569 if click_count == 2 && !is_singleton {
570 match EditorSettings::get_global(cx).double_click_in_multibuffer {
571 DoubleClickInMultibuffer::Select => {
572 // do nothing special on double click, all selection logic is below
573 }
574 DoubleClickInMultibuffer::Open => {
575 if modifiers.alt {
576 // if double click is made with alt, pretend it's a regular double click without opening and alt,
577 // and run the selection logic.
578 modifiers.alt = false;
579 } else {
580 let scroll_position_row =
581 position_map.scroll_pixel_position.y / position_map.line_height;
582 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
583 + position_map.scroll_pixel_position.y)
584 / position_map.line_height)
585 as u32;
586 let multi_buffer_row = position_map
587 .snapshot
588 .display_point_to_point(
589 DisplayPoint::new(DisplayRow(display_row), 0),
590 Bias::Right,
591 )
592 .row;
593 let line_offset_from_top = display_row - scroll_position_row as u32;
594 // if double click is made without alt, open the corresponding excerp
595 editor.open_excerpts_common(
596 Some(JumpData::MultiBufferRow {
597 row: MultiBufferRow(multi_buffer_row),
598 line_offset_from_top,
599 }),
600 false,
601 window,
602 cx,
603 );
604 return;
605 }
606 }
607 }
608 }
609
610 let point_for_position = position_map.point_for_position(event.position);
611 let position = point_for_position.previous_valid;
612 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
613 editor.select(
614 SelectPhase::BeginColumnar {
615 position,
616 reset: false,
617 goal_column: point_for_position.exact_unclipped.column(),
618 },
619 window,
620 cx,
621 );
622 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
623 {
624 editor.select(
625 SelectPhase::Extend {
626 position,
627 click_count,
628 },
629 window,
630 cx,
631 );
632 } else {
633 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
634 let multi_cursor_modifier = match multi_cursor_setting {
635 MultiCursorModifier::Alt => modifiers.alt,
636 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
637 };
638 editor.select(
639 SelectPhase::Begin {
640 position,
641 add: multi_cursor_modifier,
642 click_count,
643 },
644 window,
645 cx,
646 );
647 }
648 cx.stop_propagation();
649
650 if !is_singleton {
651 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
652 + position_map.scroll_pixel_position.y)
653 / position_map.line_height) as u32;
654 let multi_buffer_row = position_map
655 .snapshot
656 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
657 .row;
658 if line_numbers
659 .get(&MultiBufferRow(multi_buffer_row))
660 .and_then(|line_number| line_number.hitbox.as_ref())
661 .is_some_and(|hitbox| hitbox.contains(&event.position))
662 {
663 let scroll_position_row =
664 position_map.scroll_pixel_position.y / position_map.line_height;
665 let line_offset_from_top = display_row - scroll_position_row as u32;
666
667 editor.open_excerpts_common(
668 Some(JumpData::MultiBufferRow {
669 row: MultiBufferRow(multi_buffer_row),
670 line_offset_from_top,
671 }),
672 modifiers.alt,
673 window,
674 cx,
675 );
676 cx.stop_propagation();
677 }
678 }
679 }
680
681 fn mouse_right_down(
682 editor: &mut Editor,
683 event: &MouseDownEvent,
684 position_map: &PositionMap,
685 window: &mut Window,
686 cx: &mut Context<Editor>,
687 ) {
688 if !position_map.text_hitbox.is_hovered(window) {
689 return;
690 }
691 let point_for_position = position_map.point_for_position(event.position);
692 mouse_context_menu::deploy_context_menu(
693 editor,
694 Some(event.position),
695 point_for_position.previous_valid,
696 window,
697 cx,
698 );
699 cx.stop_propagation();
700 }
701
702 fn mouse_middle_down(
703 editor: &mut Editor,
704 event: &MouseDownEvent,
705 position_map: &PositionMap,
706 window: &mut Window,
707 cx: &mut Context<Editor>,
708 ) {
709 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
710 return;
711 }
712
713 let point_for_position = position_map.point_for_position(event.position);
714 let position = point_for_position.previous_valid;
715
716 editor.select(
717 SelectPhase::BeginColumnar {
718 position,
719 reset: true,
720 goal_column: point_for_position.exact_unclipped.column(),
721 },
722 window,
723 cx,
724 );
725 }
726
727 fn mouse_up(
728 editor: &mut Editor,
729 event: &MouseUpEvent,
730 position_map: &PositionMap,
731 window: &mut Window,
732 cx: &mut Context<Editor>,
733 ) {
734 let text_hitbox = &position_map.text_hitbox;
735 let end_selection = editor.has_pending_selection();
736 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
737
738 if end_selection {
739 editor.select(SelectPhase::End, window, cx);
740 }
741
742 if end_selection && pending_nonempty_selections {
743 cx.stop_propagation();
744 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
745 && event.button == MouseButton::Middle
746 {
747 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
748 return;
749 }
750
751 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
752 if EditorSettings::get_global(cx).middle_click_paste {
753 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
754 let point_for_position = position_map.point_for_position(event.position);
755 let position = point_for_position.previous_valid;
756
757 editor.select(
758 SelectPhase::Begin {
759 position,
760 add: false,
761 click_count: 1,
762 },
763 window,
764 cx,
765 );
766 editor.insert(&text, window, cx);
767 }
768 cx.stop_propagation()
769 }
770 }
771 }
772
773 fn click(
774 editor: &mut Editor,
775 event: &ClickEvent,
776 position_map: &PositionMap,
777 window: &mut Window,
778 cx: &mut Context<Editor>,
779 ) {
780 let text_hitbox = &position_map.text_hitbox;
781 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
782
783 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
784 let multi_cursor_modifier = match multi_cursor_setting {
785 MultiCursorModifier::Alt => event.modifiers().secondary(),
786 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
787 };
788
789 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
790 let point = position_map.point_for_position(event.up.position);
791 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
792
793 cx.stop_propagation();
794 }
795 }
796
797 fn mouse_dragged(
798 editor: &mut Editor,
799 event: &MouseMoveEvent,
800 position_map: &PositionMap,
801 window: &mut Window,
802 cx: &mut Context<Editor>,
803 ) {
804 if !editor.has_pending_selection() {
805 return;
806 }
807
808 let text_bounds = position_map.text_hitbox.bounds;
809 let point_for_position = position_map.point_for_position(event.position);
810 let mut scroll_delta = gpui::Point::<f32>::default();
811 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
812 let top = text_bounds.origin.y + vertical_margin;
813 let bottom = text_bounds.bottom_left().y - vertical_margin;
814 if event.position.y < top {
815 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
816 }
817 if event.position.y > bottom {
818 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
819 }
820
821 // We need horizontal width of text
822 let style = editor.style.clone().unwrap_or_default();
823 let font_id = window.text_system().resolve_font(&style.text.font());
824 let font_size = style.text.font_size.to_pixels(window.rem_size());
825 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
826
827 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
828
829 let scroll_space: Pixels = scroll_margin_x * em_width;
830
831 let left = text_bounds.origin.x + scroll_space;
832 let right = text_bounds.top_right().x - scroll_space;
833
834 if event.position.x < left {
835 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
836 }
837 if event.position.x > right {
838 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
839 }
840
841 editor.select(
842 SelectPhase::Update {
843 position: point_for_position.previous_valid,
844 goal_column: point_for_position.exact_unclipped.column(),
845 scroll_delta,
846 },
847 window,
848 cx,
849 );
850 }
851
852 fn mouse_moved(
853 editor: &mut Editor,
854 event: &MouseMoveEvent,
855 position_map: &PositionMap,
856 window: &mut Window,
857 cx: &mut Context<Editor>,
858 ) {
859 let text_hitbox = &position_map.text_hitbox;
860 let gutter_hitbox = &position_map.gutter_hitbox;
861 let modifiers = event.modifiers;
862 let gutter_hovered = gutter_hitbox.is_hovered(window);
863 editor.set_gutter_hovered(gutter_hovered, cx);
864
865 // Don't trigger hover popover if mouse is hovering over context menu
866 if text_hitbox.is_hovered(window) {
867 let point_for_position = position_map.point_for_position(event.position);
868
869 editor.update_hovered_link(
870 point_for_position,
871 &position_map.snapshot,
872 modifiers,
873 window,
874 cx,
875 );
876
877 if let Some(point) = point_for_position.as_valid() {
878 let anchor = position_map
879 .snapshot
880 .buffer_snapshot
881 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
882 hover_at(editor, Some(anchor), window, cx);
883 Self::update_visible_cursor(editor, point, position_map, window, cx);
884 } else {
885 hover_at(editor, None, window, cx);
886 }
887 } else {
888 editor.hide_hovered_link(cx);
889 hover_at(editor, None, window, cx);
890 if gutter_hovered {
891 cx.stop_propagation();
892 }
893 }
894 }
895
896 fn update_visible_cursor(
897 editor: &mut Editor,
898 point: DisplayPoint,
899 position_map: &PositionMap,
900 window: &mut Window,
901 cx: &mut Context<Editor>,
902 ) {
903 let snapshot = &position_map.snapshot;
904 let Some(hub) = editor.collaboration_hub() else {
905 return;
906 };
907 let start = snapshot.display_snapshot.clip_point(
908 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
909 Bias::Left,
910 );
911 let end = snapshot.display_snapshot.clip_point(
912 DisplayPoint::new(
913 point.row(),
914 (point.column() + 1).min(snapshot.line_len(point.row())),
915 ),
916 Bias::Right,
917 );
918
919 let range = snapshot
920 .buffer_snapshot
921 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
922 ..snapshot
923 .buffer_snapshot
924 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
925
926 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
927 return;
928 };
929 let key = crate::HoveredCursor {
930 replica_id: selection.replica_id,
931 selection_id: selection.selection.id,
932 };
933 editor.hovered_cursors.insert(
934 key.clone(),
935 cx.spawn_in(window, |editor, mut cx| async move {
936 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
937 editor
938 .update(&mut cx, |editor, cx| {
939 editor.hovered_cursors.remove(&key);
940 cx.notify();
941 })
942 .ok();
943 }),
944 );
945 cx.notify()
946 }
947
948 #[allow(clippy::too_many_arguments)]
949 fn layout_selections(
950 &self,
951 start_anchor: Anchor,
952 end_anchor: Anchor,
953 local_selections: &[Selection<Point>],
954 snapshot: &EditorSnapshot,
955 start_row: DisplayRow,
956 end_row: DisplayRow,
957 window: &mut Window,
958 cx: &mut App,
959 ) -> (
960 Vec<(PlayerColor, Vec<SelectionLayout>)>,
961 BTreeMap<DisplayRow, bool>,
962 Option<DisplayPoint>,
963 ) {
964 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
965 let mut active_rows = BTreeMap::new();
966 let mut newest_selection_head = None;
967 self.editor.update(cx, |editor, cx| {
968 if editor.show_local_selections {
969 let mut layouts = Vec::new();
970 let newest = editor.selections.newest(cx);
971 for selection in local_selections.iter().cloned() {
972 let is_empty = selection.start == selection.end;
973 let is_newest = selection == newest;
974
975 let layout = SelectionLayout::new(
976 selection,
977 editor.selections.line_mode,
978 editor.cursor_shape,
979 &snapshot.display_snapshot,
980 is_newest,
981 editor.leader_peer_id.is_none(),
982 None,
983 );
984 if is_newest {
985 newest_selection_head = Some(layout.head);
986 }
987
988 for row in cmp::max(layout.active_rows.start.0, start_row.0)
989 ..=cmp::min(layout.active_rows.end.0, end_row.0)
990 {
991 let contains_non_empty_selection =
992 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
993 *contains_non_empty_selection |= !is_empty;
994 }
995 layouts.push(layout);
996 }
997
998 let player = editor.current_user_player_color(cx);
999 selections.push((player, layouts));
1000 }
1001
1002 if let Some(collaboration_hub) = &editor.collaboration_hub {
1003 // When following someone, render the local selections in their color.
1004 if let Some(leader_id) = editor.leader_peer_id {
1005 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1006 {
1007 if let Some(participant_index) = collaboration_hub
1008 .user_participant_indices(cx)
1009 .get(&collaborator.user_id)
1010 {
1011 if let Some((local_selection_style, _)) = selections.first_mut() {
1012 *local_selection_style = cx
1013 .theme()
1014 .players()
1015 .color_for_participant(participant_index.0);
1016 }
1017 }
1018 }
1019 }
1020
1021 let mut remote_selections = HashMap::default();
1022 for selection in snapshot.remote_selections_in_range(
1023 &(start_anchor..end_anchor),
1024 collaboration_hub.as_ref(),
1025 cx,
1026 ) {
1027 let selection_style =
1028 Self::get_participant_color(selection.participant_index, cx);
1029
1030 // Don't re-render the leader's selections, since the local selections
1031 // match theirs.
1032 if Some(selection.peer_id) == editor.leader_peer_id {
1033 continue;
1034 }
1035 let key = HoveredCursor {
1036 replica_id: selection.replica_id,
1037 selection_id: selection.selection.id,
1038 };
1039
1040 let is_shown =
1041 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1042
1043 remote_selections
1044 .entry(selection.replica_id)
1045 .or_insert((selection_style, Vec::new()))
1046 .1
1047 .push(SelectionLayout::new(
1048 selection.selection,
1049 selection.line_mode,
1050 selection.cursor_shape,
1051 &snapshot.display_snapshot,
1052 false,
1053 false,
1054 if is_shown { selection.user_name } else { None },
1055 ));
1056 }
1057
1058 selections.extend(remote_selections.into_values());
1059 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1060 let layouts = snapshot
1061 .buffer_snapshot
1062 .selections_in_range(&(start_anchor..end_anchor), true)
1063 .map(move |(_, line_mode, cursor_shape, selection)| {
1064 SelectionLayout::new(
1065 selection,
1066 line_mode,
1067 cursor_shape,
1068 &snapshot.display_snapshot,
1069 false,
1070 false,
1071 None,
1072 )
1073 })
1074 .collect::<Vec<_>>();
1075 let player = editor.current_user_player_color(cx);
1076 selections.push((player, layouts));
1077 }
1078 });
1079 (selections, active_rows, newest_selection_head)
1080 }
1081
1082 fn collect_cursors(
1083 &self,
1084 snapshot: &EditorSnapshot,
1085 cx: &mut App,
1086 ) -> Vec<(DisplayPoint, Hsla)> {
1087 let editor = self.editor.read(cx);
1088 let mut cursors = Vec::new();
1089 let mut skip_local = false;
1090 let mut add_cursor = |anchor: Anchor, color| {
1091 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1092 };
1093 // Remote cursors
1094 if let Some(collaboration_hub) = &editor.collaboration_hub {
1095 for remote_selection in snapshot.remote_selections_in_range(
1096 &(Anchor::min()..Anchor::max()),
1097 collaboration_hub.deref(),
1098 cx,
1099 ) {
1100 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1101 add_cursor(remote_selection.selection.head(), color.cursor);
1102 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1103 skip_local = true;
1104 }
1105 }
1106 }
1107 // Local cursors
1108 if !skip_local {
1109 let color = cx.theme().players().local().cursor;
1110 editor.selections.disjoint.iter().for_each(|selection| {
1111 add_cursor(selection.head(), color);
1112 });
1113 if let Some(ref selection) = editor.selections.pending_anchor() {
1114 add_cursor(selection.head(), color);
1115 }
1116 }
1117 cursors
1118 }
1119
1120 #[allow(clippy::too_many_arguments)]
1121 fn layout_visible_cursors(
1122 &self,
1123 snapshot: &EditorSnapshot,
1124 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1125 block_start_rows: &HashSet<DisplayRow>,
1126 visible_display_row_range: Range<DisplayRow>,
1127 line_layouts: &[LineWithInvisibles],
1128 text_hitbox: &Hitbox,
1129 content_origin: gpui::Point<Pixels>,
1130 scroll_position: gpui::Point<f32>,
1131 scroll_pixel_position: gpui::Point<Pixels>,
1132 line_height: Pixels,
1133 em_width: Pixels,
1134 em_advance: Pixels,
1135 autoscroll_containing_element: bool,
1136 window: &mut Window,
1137 cx: &mut App,
1138 ) -> Vec<CursorLayout> {
1139 let mut autoscroll_bounds = None;
1140 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1141 let mut cursors = Vec::new();
1142
1143 let show_local_cursors = editor.show_local_cursors(window, cx);
1144
1145 for (player_color, selections) in selections {
1146 for selection in selections {
1147 let cursor_position = selection.head;
1148
1149 let in_range = visible_display_row_range.contains(&cursor_position.row());
1150 if (selection.is_local && !show_local_cursors)
1151 || !in_range
1152 || block_start_rows.contains(&cursor_position.row())
1153 {
1154 continue;
1155 }
1156
1157 let cursor_row_layout = &line_layouts
1158 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1159 let cursor_column = cursor_position.column() as usize;
1160
1161 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1162 let mut block_width =
1163 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1164 if block_width == Pixels::ZERO {
1165 block_width = em_advance;
1166 }
1167 let block_text = if let CursorShape::Block = selection.cursor_shape {
1168 snapshot
1169 .grapheme_at(cursor_position)
1170 .or_else(|| {
1171 if cursor_column == 0 {
1172 snapshot.placeholder_text().and_then(|s| {
1173 s.graphemes(true).next().map(|s| s.to_string().into())
1174 })
1175 } else {
1176 None
1177 }
1178 })
1179 .and_then(|text| {
1180 let len = text.len();
1181
1182 let font = cursor_row_layout
1183 .font_id_for_index(cursor_column)
1184 .and_then(|cursor_font_id| {
1185 window.text_system().get_font_for_id(cursor_font_id)
1186 })
1187 .unwrap_or(self.style.text.font());
1188
1189 // Invert the text color for the block cursor. Ensure that the text
1190 // color is opaque enough to be visible against the background color.
1191 //
1192 // 0.75 is an arbitrary threshold to determine if the background color is
1193 // opaque enough to use as a text color.
1194 //
1195 // TODO: In the future we should ensure themes have a `text_inverse` color.
1196 let color = if cx.theme().colors().editor_background.a < 0.75 {
1197 match cx.theme().appearance {
1198 Appearance::Dark => Hsla::black(),
1199 Appearance::Light => Hsla::white(),
1200 }
1201 } else {
1202 cx.theme().colors().editor_background
1203 };
1204
1205 window
1206 .text_system()
1207 .shape_line(
1208 text,
1209 cursor_row_layout.font_size,
1210 &[TextRun {
1211 len,
1212 font,
1213 color,
1214 background_color: None,
1215 strikethrough: None,
1216 underline: None,
1217 }],
1218 )
1219 .log_err()
1220 })
1221 } else {
1222 None
1223 };
1224
1225 let x = cursor_character_x - scroll_pixel_position.x;
1226 let y = (cursor_position.row().as_f32()
1227 - scroll_pixel_position.y / line_height)
1228 * line_height;
1229 if selection.is_newest {
1230 editor.pixel_position_of_newest_cursor = Some(point(
1231 text_hitbox.origin.x + x + block_width / 2.,
1232 text_hitbox.origin.y + y + line_height / 2.,
1233 ));
1234
1235 if autoscroll_containing_element {
1236 let top = text_hitbox.origin.y
1237 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1238 * line_height;
1239 let left = text_hitbox.origin.x
1240 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1241 .max(0.)
1242 * em_width;
1243
1244 let bottom = text_hitbox.origin.y
1245 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1246 * line_height;
1247 let right = text_hitbox.origin.x
1248 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1249 * em_width;
1250
1251 autoscroll_bounds =
1252 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1253 }
1254 }
1255
1256 let mut cursor = CursorLayout {
1257 color: player_color.cursor,
1258 block_width,
1259 origin: point(x, y),
1260 line_height,
1261 shape: selection.cursor_shape,
1262 block_text,
1263 cursor_name: None,
1264 };
1265 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1266 string: name,
1267 color: self.style.background,
1268 is_top_row: cursor_position.row().0 == 0,
1269 });
1270 cursor.layout(content_origin, cursor_name, window, cx);
1271 cursors.push(cursor);
1272 }
1273 }
1274
1275 cursors
1276 });
1277
1278 if let Some(bounds) = autoscroll_bounds {
1279 window.request_autoscroll(bounds);
1280 }
1281
1282 cursor_layouts
1283 }
1284
1285 fn layout_scrollbars(
1286 &self,
1287 snapshot: &EditorSnapshot,
1288 scrollbar_range_data: ScrollbarRangeData,
1289 scroll_position: gpui::Point<f32>,
1290 non_visible_cursors: bool,
1291 window: &mut Window,
1292 cx: &mut App,
1293 ) -> AxisPair<Option<ScrollbarLayout>> {
1294 let letter_size = scrollbar_range_data.letter_size;
1295 let text_units_per_page = axis_pair(
1296 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1297 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1298 );
1299
1300 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1301 let show_scrollbars = self.editor.read(cx).show_scrollbars
1302 && match scrollbar_settings.show {
1303 ShowScrollbar::Auto => {
1304 let editor = self.editor.read(cx);
1305 let is_singleton = editor.is_singleton(cx);
1306 // Git
1307 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1308 ||
1309 // Buffer Search Results
1310 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1311 ||
1312 // Selected Text Occurrences
1313 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1314 ||
1315 // Selected Symbol Occurrences
1316 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1317 ||
1318 // Diagnostics
1319 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1320 ||
1321 // Cursors out of sight
1322 non_visible_cursors
1323 ||
1324 // Scrollmanager
1325 editor.scroll_manager.scrollbars_visible()
1326 }
1327 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1328 ShowScrollbar::Always => true,
1329 ShowScrollbar::Never => false,
1330 };
1331
1332 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1333
1334 if snapshot.mode != EditorMode::Full {
1335 return axis_pair(None, None);
1336 }
1337
1338 let visible_range = axis_pair(
1339 axes.horizontal
1340 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1341 axes.vertical
1342 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1343 );
1344
1345 // If a drag took place after we started dragging the scrollbar,
1346 // cancel the scrollbar drag.
1347 if cx.has_active_drag() {
1348 self.editor.update(cx, |editor, cx| {
1349 editor
1350 .scroll_manager
1351 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1352 editor
1353 .scroll_manager
1354 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1355 });
1356 }
1357
1358 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1359
1360 let track_bounds = axis_pair(
1361 axes.horizontal.then(|| {
1362 Bounds::from_corners(
1363 point(
1364 text_bounds.bottom_left().x,
1365 text_bounds.bottom_left().y - self.style.scrollbar_width,
1366 ),
1367 point(
1368 text_bounds.bottom_right().x
1369 - if axes.vertical {
1370 self.style.scrollbar_width
1371 } else {
1372 px(0.)
1373 },
1374 text_bounds.bottom_right().y,
1375 ),
1376 )
1377 }),
1378 axes.vertical.then(|| {
1379 Bounds::from_corners(
1380 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1381 text_bounds.bottom_right(),
1382 )
1383 }),
1384 );
1385
1386 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1387 let total_text_units = axis_pair(
1388 Some(scroll_range_size.width / letter_size.width),
1389 Some(scroll_range_size.height / letter_size.height),
1390 );
1391
1392 let thumb_size = axis_pair(
1393 total_text_units
1394 .horizontal
1395 .zip(track_bounds.horizontal)
1396 .and_then(|(total_text_units_x, track_bounds_x)| {
1397 if text_units_per_page.horizontal >= total_text_units_x {
1398 return None;
1399 }
1400 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1401 return Some(track_bounds_x.size.width);
1402 }
1403 let thumb_size = track_bounds_x.size.width
1404 * (text_units_per_page.horizontal / total_text_units_x);
1405 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1406 }),
1407 total_text_units.vertical.zip(track_bounds.vertical).map(
1408 |(total_text_units_y, track_bounds_y)| {
1409 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1410 return track_bounds_y.size.height;
1411 }
1412 let thumb_size = track_bounds_y.size.height
1413 * (text_units_per_page.vertical / total_text_units_y);
1414 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1415 },
1416 ),
1417 );
1418
1419 // NOTE: Space not taken by track bounds divided by text units not on screen
1420 let text_unit_size = axis_pair(
1421 thumb_size
1422 .horizontal
1423 .zip(track_bounds.horizontal)
1424 .zip(total_text_units.horizontal)
1425 .map(|((thumb_size, track_bounds), total_text_units)| {
1426 (track_bounds.size.width - thumb_size)
1427 / (total_text_units - text_units_per_page.horizontal).max(0.)
1428 }),
1429 thumb_size
1430 .vertical
1431 .zip(track_bounds.vertical)
1432 .zip(total_text_units.vertical)
1433 .map(|((thumb_size, track_bounds), total_text_units)| {
1434 (track_bounds.size.height - thumb_size)
1435 / (total_text_units - text_units_per_page.vertical).max(0.)
1436 }),
1437 );
1438
1439 let horizontal_scrollbar = track_bounds
1440 .horizontal
1441 .zip(visible_range.horizontal)
1442 .zip(text_unit_size.horizontal)
1443 .zip(thumb_size.horizontal)
1444 .map(
1445 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1446 hitbox: window.insert_hitbox(track_bounds, false),
1447 visible_range,
1448 text_unit_size,
1449 visible: show_scrollbars,
1450 thumb_size,
1451 axis: Axis::Horizontal,
1452 },
1453 );
1454
1455 let vertical_scrollbar = track_bounds
1456 .vertical
1457 .zip(visible_range.vertical)
1458 .zip(text_unit_size.vertical)
1459 .zip(thumb_size.vertical)
1460 .map(
1461 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1462 hitbox: window.insert_hitbox(track_bounds, false),
1463 visible_range,
1464 text_unit_size,
1465 visible: show_scrollbars,
1466 thumb_size,
1467 axis: Axis::Vertical,
1468 },
1469 );
1470
1471 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1472 }
1473
1474 #[allow(clippy::too_many_arguments)]
1475 fn prepaint_crease_toggles(
1476 &self,
1477 crease_toggles: &mut [Option<AnyElement>],
1478 line_height: Pixels,
1479 gutter_dimensions: &GutterDimensions,
1480 gutter_settings: crate::editor_settings::Gutter,
1481 scroll_pixel_position: gpui::Point<Pixels>,
1482 gutter_hitbox: &Hitbox,
1483 window: &mut Window,
1484 cx: &mut App,
1485 ) {
1486 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1487 if let Some(crease_toggle) = crease_toggle {
1488 debug_assert!(gutter_settings.folds);
1489 let available_space = size(
1490 AvailableSpace::MinContent,
1491 AvailableSpace::Definite(line_height * 0.55),
1492 );
1493 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1494
1495 let position = point(
1496 gutter_dimensions.width - gutter_dimensions.right_padding,
1497 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1498 );
1499 let centering_offset = point(
1500 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1501 (line_height - crease_toggle_size.height) / 2.,
1502 );
1503 let origin = gutter_hitbox.origin + position + centering_offset;
1504 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1505 }
1506 }
1507 }
1508
1509 #[allow(clippy::too_many_arguments)]
1510 fn prepaint_crease_trailers(
1511 &self,
1512 trailers: Vec<Option<AnyElement>>,
1513 lines: &[LineWithInvisibles],
1514 line_height: Pixels,
1515 content_origin: gpui::Point<Pixels>,
1516 scroll_pixel_position: gpui::Point<Pixels>,
1517 em_width: Pixels,
1518 window: &mut Window,
1519 cx: &mut App,
1520 ) -> Vec<Option<CreaseTrailerLayout>> {
1521 trailers
1522 .into_iter()
1523 .enumerate()
1524 .map(|(ix, element)| {
1525 let mut element = element?;
1526 let available_space = size(
1527 AvailableSpace::MinContent,
1528 AvailableSpace::Definite(line_height),
1529 );
1530 let size = element.layout_as_root(available_space, window, cx);
1531
1532 let line = &lines[ix];
1533 let padding = if line.width == Pixels::ZERO {
1534 Pixels::ZERO
1535 } else {
1536 4. * em_width
1537 };
1538 let position = point(
1539 scroll_pixel_position.x + line.width + padding,
1540 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1541 );
1542 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1543 let origin = content_origin + position + centering_offset;
1544 element.prepaint_as_root(origin, available_space, window, cx);
1545 Some(CreaseTrailerLayout {
1546 element,
1547 bounds: Bounds::new(origin, size),
1548 })
1549 })
1550 .collect()
1551 }
1552
1553 // Folds contained in a hunk are ignored apart from shrinking visual size
1554 // If a fold contains any hunks then that fold line is marked as modified
1555 fn layout_gutter_diff_hunks(
1556 &self,
1557 line_height: Pixels,
1558 gutter_hitbox: &Hitbox,
1559 display_rows: Range<DisplayRow>,
1560 snapshot: &EditorSnapshot,
1561 window: &mut Window,
1562 cx: &mut App,
1563 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1564 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1565 let mut display_hunks = snapshot
1566 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1567 .map(|hunk| (hunk, None))
1568 .collect::<Vec<_>>();
1569 let git_gutter_setting = ProjectSettings::get_global(cx)
1570 .git
1571 .git_gutter
1572 .unwrap_or_default();
1573 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1574 for (hunk, hitbox) in &mut display_hunks {
1575 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1576 let hunk_bounds =
1577 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1578 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1579 }
1580 }
1581 }
1582
1583 display_hunks
1584 }
1585
1586 #[allow(clippy::too_many_arguments)]
1587 fn layout_inline_diagnostics(
1588 &self,
1589 line_layouts: &[LineWithInvisibles],
1590 crease_trailers: &[Option<CreaseTrailerLayout>],
1591 content_origin: gpui::Point<Pixels>,
1592 scroll_pixel_position: gpui::Point<Pixels>,
1593 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1594 start_row: DisplayRow,
1595 end_row: DisplayRow,
1596 line_height: Pixels,
1597 em_width: Pixels,
1598 style: &EditorStyle,
1599 window: &mut Window,
1600 cx: &mut App,
1601 ) -> HashMap<DisplayRow, AnyElement> {
1602 let max_severity = ProjectSettings::get_global(cx)
1603 .diagnostics
1604 .inline
1605 .max_severity
1606 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1607 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1608 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1609 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1610 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1611 });
1612
1613 let active_diagnostics_group = self
1614 .editor
1615 .read(cx)
1616 .active_diagnostics
1617 .as_ref()
1618 .map(|active_diagnostics| active_diagnostics.group_id);
1619
1620 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1621 let snapshot = editor.snapshot(window, cx);
1622 editor
1623 .inline_diagnostics
1624 .iter()
1625 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1626 .filter(|(_, diagnostic)| match active_diagnostics_group {
1627 Some(active_diagnostics_group) => {
1628 // Active diagnostics are all shown in the editor already, no need to display them inline
1629 diagnostic.group_id != active_diagnostics_group
1630 }
1631 None => true,
1632 })
1633 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1634 .skip_while(|(point, _)| point.row() < start_row)
1635 .take_while(|(point, _)| point.row() < end_row)
1636 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1637 acc.entry(point.row())
1638 .or_insert_with(Vec::new)
1639 .push(diagnostic);
1640 acc
1641 })
1642 });
1643
1644 if diagnostics_by_rows.is_empty() {
1645 return HashMap::default();
1646 }
1647
1648 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1649 &DiagnosticSeverity::ERROR => Color::Error,
1650 &DiagnosticSeverity::WARNING => Color::Warning,
1651 &DiagnosticSeverity::INFORMATION => Color::Info,
1652 &DiagnosticSeverity::HINT => Color::Hint,
1653 _ => Color::Error,
1654 };
1655
1656 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1657 let min_x = ProjectSettings::get_global(cx)
1658 .diagnostics
1659 .inline
1660 .min_column as f32
1661 * em_width;
1662
1663 let mut elements = HashMap::default();
1664 for (row, mut diagnostics) in diagnostics_by_rows {
1665 diagnostics.sort_by_key(|diagnostic| {
1666 (
1667 diagnostic.severity,
1668 std::cmp::Reverse(diagnostic.is_primary),
1669 diagnostic.start.row,
1670 diagnostic.start.column,
1671 )
1672 });
1673
1674 let Some(diagnostic_to_render) = diagnostics
1675 .iter()
1676 .find(|diagnostic| diagnostic.is_primary)
1677 .or_else(|| diagnostics.first())
1678 else {
1679 continue;
1680 };
1681
1682 let pos_y = content_origin.y
1683 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1684
1685 let window_ix = row.minus(start_row) as usize;
1686 let pos_x = {
1687 let crease_trailer_layout = &crease_trailers[window_ix];
1688 let line_layout = &line_layouts[window_ix];
1689
1690 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1691 crease_trailer.bounds.right()
1692 } else {
1693 content_origin.x - scroll_pixel_position.x + line_layout.width
1694 };
1695
1696 let padded_line = line_end + padding;
1697 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1698
1699 cmp::max(padded_line, min_start)
1700 };
1701
1702 let behind_inline_completion_popover = inline_completion_popover_origin
1703 .as_ref()
1704 .map_or(false, |inline_completion_popover_origin| {
1705 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1706 });
1707 let opacity = if behind_inline_completion_popover {
1708 0.5
1709 } else {
1710 1.0
1711 };
1712
1713 let mut element = h_flex()
1714 .id(("diagnostic", row.0))
1715 .h(line_height)
1716 .w_full()
1717 .px_1()
1718 .rounded_sm()
1719 .opacity(opacity)
1720 .bg(severity_to_color(&diagnostic_to_render.severity)
1721 .color(cx)
1722 .opacity(0.05))
1723 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1724 .text_sm()
1725 .font_family(style.text.font().family)
1726 .child(diagnostic_to_render.message.clone())
1727 .into_any();
1728
1729 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1730
1731 elements.insert(row, element);
1732 }
1733
1734 elements
1735 }
1736
1737 #[allow(clippy::too_many_arguments)]
1738 fn layout_inline_blame(
1739 &self,
1740 display_row: DisplayRow,
1741 row_info: &RowInfo,
1742 line_layout: &LineWithInvisibles,
1743 crease_trailer: Option<&CreaseTrailerLayout>,
1744 em_width: Pixels,
1745 content_origin: gpui::Point<Pixels>,
1746 scroll_pixel_position: gpui::Point<Pixels>,
1747 line_height: Pixels,
1748 window: &mut Window,
1749 cx: &mut App,
1750 ) -> Option<AnyElement> {
1751 if !self
1752 .editor
1753 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1754 {
1755 return None;
1756 }
1757
1758 let editor = self.editor.read(cx);
1759 let blame = editor.blame.clone()?;
1760 let padding = {
1761 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1762 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1763
1764 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1765
1766 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1767 match &inline_completion.completion {
1768 InlineCompletion::Edit {
1769 display_mode: EditDisplayMode::TabAccept,
1770 ..
1771 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1772 _ => {}
1773 }
1774 }
1775
1776 padding * em_width
1777 };
1778
1779 let blame_entry = blame
1780 .update(cx, |blame, cx| {
1781 blame.blame_for_rows(&[*row_info], cx).next()
1782 })
1783 .flatten()?;
1784
1785 let mut element =
1786 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1787
1788 let start_y = content_origin.y
1789 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1790
1791 let start_x = {
1792 let line_end = if let Some(crease_trailer) = crease_trailer {
1793 crease_trailer.bounds.right()
1794 } else {
1795 content_origin.x - scroll_pixel_position.x + line_layout.width
1796 };
1797
1798 let padded_line_end = line_end + padding;
1799
1800 let min_column_in_pixels = ProjectSettings::get_global(cx)
1801 .git
1802 .inline_blame
1803 .and_then(|settings| settings.min_column)
1804 .map(|col| self.column_pixels(col as usize, window, cx))
1805 .unwrap_or(px(0.));
1806 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1807
1808 cmp::max(padded_line_end, min_start)
1809 };
1810
1811 let absolute_offset = point(start_x, start_y);
1812 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1813
1814 Some(element)
1815 }
1816
1817 #[allow(clippy::too_many_arguments)]
1818 fn layout_blame_entries(
1819 &self,
1820 buffer_rows: &[RowInfo],
1821 em_width: Pixels,
1822 scroll_position: gpui::Point<f32>,
1823 line_height: Pixels,
1824 gutter_hitbox: &Hitbox,
1825 max_width: Option<Pixels>,
1826 window: &mut Window,
1827 cx: &mut App,
1828 ) -> Option<Vec<AnyElement>> {
1829 if !self
1830 .editor
1831 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1832 {
1833 return None;
1834 }
1835
1836 let blame = self.editor.read(cx).blame.clone()?;
1837 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1838 blame.blame_for_rows(buffer_rows, cx).collect()
1839 });
1840
1841 let width = if let Some(max_width) = max_width {
1842 AvailableSpace::Definite(max_width)
1843 } else {
1844 AvailableSpace::MaxContent
1845 };
1846 let scroll_top = scroll_position.y * line_height;
1847 let start_x = em_width;
1848
1849 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1850
1851 let shaped_lines = blamed_rows
1852 .into_iter()
1853 .enumerate()
1854 .flat_map(|(ix, blame_entry)| {
1855 if let Some(blame_entry) = blame_entry {
1856 let mut element = render_blame_entry(
1857 ix,
1858 &blame,
1859 blame_entry,
1860 &self.style,
1861 &mut last_used_color,
1862 self.editor.clone(),
1863 cx,
1864 );
1865
1866 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1867 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1868
1869 element.prepaint_as_root(
1870 absolute_offset,
1871 size(width, AvailableSpace::MinContent),
1872 window,
1873 cx,
1874 );
1875
1876 Some(element)
1877 } else {
1878 None
1879 }
1880 })
1881 .collect();
1882
1883 Some(shaped_lines)
1884 }
1885
1886 #[allow(clippy::too_many_arguments)]
1887 fn layout_indent_guides(
1888 &self,
1889 content_origin: gpui::Point<Pixels>,
1890 text_origin: gpui::Point<Pixels>,
1891 visible_buffer_range: Range<MultiBufferRow>,
1892 scroll_pixel_position: gpui::Point<Pixels>,
1893 line_height: Pixels,
1894 snapshot: &DisplaySnapshot,
1895 window: &mut Window,
1896 cx: &mut App,
1897 ) -> Option<Vec<IndentGuideLayout>> {
1898 let indent_guides = self.editor.update(cx, |editor, cx| {
1899 editor.indent_guides(visible_buffer_range, snapshot, cx)
1900 })?;
1901
1902 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1903 editor
1904 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1905 .unwrap_or_default()
1906 });
1907
1908 Some(
1909 indent_guides
1910 .into_iter()
1911 .enumerate()
1912 .filter_map(|(i, indent_guide)| {
1913 let single_indent_width =
1914 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1915 let total_width = single_indent_width * indent_guide.depth as f32;
1916 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1917 if start_x >= text_origin.x {
1918 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1919 indent_guide.start_row..indent_guide.end_row,
1920 line_height,
1921 snapshot,
1922 );
1923
1924 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1925
1926 Some(IndentGuideLayout {
1927 origin: point(start_x, start_y),
1928 length,
1929 single_indent_width,
1930 depth: indent_guide.depth,
1931 active: active_indent_guide_indices.contains(&i),
1932 settings: indent_guide.settings,
1933 })
1934 } else {
1935 None
1936 }
1937 })
1938 .collect(),
1939 )
1940 }
1941
1942 fn calculate_indent_guide_bounds(
1943 row_range: Range<MultiBufferRow>,
1944 line_height: Pixels,
1945 snapshot: &DisplaySnapshot,
1946 ) -> (gpui::Pixels, gpui::Pixels) {
1947 let start_point = Point::new(row_range.start.0, 0);
1948 let end_point = Point::new(row_range.end.0, 0);
1949
1950 let row_range = start_point.to_display_point(snapshot).row()
1951 ..end_point.to_display_point(snapshot).row();
1952
1953 let mut prev_line = start_point;
1954 prev_line.row = prev_line.row.saturating_sub(1);
1955 let prev_line = prev_line.to_display_point(snapshot).row();
1956
1957 let mut cons_line = end_point;
1958 cons_line.row += 1;
1959 let cons_line = cons_line.to_display_point(snapshot).row();
1960
1961 let mut offset_y = row_range.start.0 as f32 * line_height;
1962 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1963
1964 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1965 if row_range.end == cons_line {
1966 length += line_height;
1967 }
1968
1969 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1970 // we want to extend the indent guide to the start of the block.
1971 let mut block_height = 0;
1972 let mut block_offset = 0;
1973 let mut found_excerpt_header = false;
1974 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1975 if matches!(block, Block::ExcerptBoundary { .. }) {
1976 found_excerpt_header = true;
1977 break;
1978 }
1979 block_offset += block.height();
1980 block_height += block.height();
1981 }
1982 if !found_excerpt_header {
1983 offset_y -= block_offset as f32 * line_height;
1984 length += block_height as f32 * line_height;
1985 }
1986
1987 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1988 // we want to ensure that the indent guide stops before the excerpt header.
1989 let mut block_height = 0;
1990 let mut found_excerpt_header = false;
1991 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1992 if matches!(block, Block::ExcerptBoundary { .. }) {
1993 found_excerpt_header = true;
1994 }
1995 block_height += block.height();
1996 }
1997 if found_excerpt_header {
1998 length -= block_height as f32 * line_height;
1999 }
2000
2001 (offset_y, length)
2002 }
2003
2004 #[allow(clippy::too_many_arguments)]
2005 fn layout_run_indicators(
2006 &self,
2007 line_height: Pixels,
2008 range: Range<DisplayRow>,
2009 scroll_pixel_position: gpui::Point<Pixels>,
2010 gutter_dimensions: &GutterDimensions,
2011 gutter_hitbox: &Hitbox,
2012 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2013 snapshot: &EditorSnapshot,
2014 window: &mut Window,
2015 cx: &mut App,
2016 ) -> Vec<AnyElement> {
2017 self.editor.update(cx, |editor, cx| {
2018 let active_task_indicator_row =
2019 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2020 deployed_from_indicator,
2021 actions,
2022 ..
2023 })) = editor.context_menu.borrow().as_ref()
2024 {
2025 actions
2026 .tasks
2027 .as_ref()
2028 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2029 .or(*deployed_from_indicator)
2030 } else {
2031 None
2032 };
2033
2034 let offset_range_start =
2035 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2036
2037 let offset_range_end =
2038 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2039
2040 editor
2041 .tasks
2042 .iter()
2043 .filter_map(|(_, tasks)| {
2044 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2045 if multibuffer_point < offset_range_start
2046 || multibuffer_point > offset_range_end
2047 {
2048 return None;
2049 }
2050 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2051 let buffer_folded = snapshot
2052 .buffer_snapshot
2053 .buffer_line_for_row(multibuffer_row)
2054 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2055 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2056 .unwrap_or(false);
2057 if buffer_folded {
2058 return None;
2059 }
2060
2061 if snapshot.is_line_folded(multibuffer_row) {
2062 // Skip folded indicators, unless it's the starting line of a fold.
2063 if multibuffer_row
2064 .0
2065 .checked_sub(1)
2066 .map_or(false, |previous_row| {
2067 snapshot.is_line_folded(MultiBufferRow(previous_row))
2068 })
2069 {
2070 return None;
2071 }
2072 }
2073 let display_row = multibuffer_point.to_display_point(snapshot).row();
2074 let button = editor.render_run_indicator(
2075 &self.style,
2076 Some(display_row) == active_task_indicator_row,
2077 display_row,
2078 cx,
2079 );
2080
2081 let button = prepaint_gutter_button(
2082 button,
2083 display_row,
2084 line_height,
2085 gutter_dimensions,
2086 scroll_pixel_position,
2087 gutter_hitbox,
2088 rows_with_hunk_bounds,
2089 window,
2090 cx,
2091 );
2092 Some(button)
2093 })
2094 .collect_vec()
2095 })
2096 }
2097
2098 #[allow(clippy::too_many_arguments)]
2099 fn layout_code_actions_indicator(
2100 &self,
2101 line_height: Pixels,
2102 newest_selection_head: DisplayPoint,
2103 scroll_pixel_position: gpui::Point<Pixels>,
2104 gutter_dimensions: &GutterDimensions,
2105 gutter_hitbox: &Hitbox,
2106 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2107 window: &mut Window,
2108 cx: &mut App,
2109 ) -> Option<AnyElement> {
2110 let mut active = false;
2111 let mut button = None;
2112 let row = newest_selection_head.row();
2113 self.editor.update(cx, |editor, cx| {
2114 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2115 deployed_from_indicator,
2116 ..
2117 })) = editor.context_menu.borrow().as_ref()
2118 {
2119 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2120 };
2121 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2122 });
2123
2124 let button = prepaint_gutter_button(
2125 button?,
2126 row,
2127 line_height,
2128 gutter_dimensions,
2129 scroll_pixel_position,
2130 gutter_hitbox,
2131 rows_with_hunk_bounds,
2132 window,
2133 cx,
2134 );
2135
2136 Some(button)
2137 }
2138
2139 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2140 if let Some(index) = participant_index {
2141 cx.theme().players().color_for_participant(index.0)
2142 } else {
2143 cx.theme().players().absent()
2144 }
2145 }
2146
2147 fn calculate_relative_line_numbers(
2148 &self,
2149 snapshot: &EditorSnapshot,
2150 rows: &Range<DisplayRow>,
2151 relative_to: Option<DisplayRow>,
2152 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2153 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2154 let Some(relative_to) = relative_to else {
2155 return relative_rows;
2156 };
2157
2158 let start = rows.start.min(relative_to);
2159 let end = rows.end.max(relative_to);
2160
2161 let buffer_rows = snapshot
2162 .row_infos(start)
2163 .take(1 + end.minus(start) as usize)
2164 .collect::<Vec<_>>();
2165
2166 let head_idx = relative_to.minus(start);
2167 let mut delta = 1;
2168 let mut i = head_idx + 1;
2169 while i < buffer_rows.len() as u32 {
2170 if buffer_rows[i as usize].buffer_row.is_some() {
2171 if rows.contains(&DisplayRow(i + start.0)) {
2172 relative_rows.insert(DisplayRow(i + start.0), delta);
2173 }
2174 delta += 1;
2175 }
2176 i += 1;
2177 }
2178 delta = 1;
2179 i = head_idx.min(buffer_rows.len() as u32 - 1);
2180 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2181 i -= 1;
2182 }
2183
2184 while i > 0 {
2185 i -= 1;
2186 if buffer_rows[i as usize].buffer_row.is_some() {
2187 if rows.contains(&DisplayRow(i + start.0)) {
2188 relative_rows.insert(DisplayRow(i + start.0), delta);
2189 }
2190 delta += 1;
2191 }
2192 }
2193
2194 relative_rows
2195 }
2196
2197 #[allow(clippy::too_many_arguments)]
2198 fn layout_line_numbers(
2199 &self,
2200 gutter_hitbox: Option<&Hitbox>,
2201 gutter_dimensions: GutterDimensions,
2202 line_height: Pixels,
2203 scroll_position: gpui::Point<f32>,
2204 rows: Range<DisplayRow>,
2205 buffer_rows: &[RowInfo],
2206 newest_selection_head: Option<DisplayPoint>,
2207 snapshot: &EditorSnapshot,
2208 window: &mut Window,
2209 cx: &mut App,
2210 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2211 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2212 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2213 });
2214 if !include_line_numbers {
2215 return Arc::default();
2216 }
2217
2218 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2219 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2220 let newest = editor.selections.newest::<Point>(cx);
2221 SelectionLayout::new(
2222 newest,
2223 editor.selections.line_mode,
2224 editor.cursor_shape,
2225 &snapshot.display_snapshot,
2226 true,
2227 true,
2228 None,
2229 )
2230 .head
2231 });
2232 let is_relative = editor.should_use_relative_line_numbers(cx);
2233 (newest_selection_head, is_relative)
2234 });
2235
2236 let relative_to = if is_relative {
2237 Some(newest_selection_head.row())
2238 } else {
2239 None
2240 };
2241 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2242 let mut line_number = String::new();
2243 let line_numbers = buffer_rows
2244 .into_iter()
2245 .enumerate()
2246 .flat_map(|(ix, row_info)| {
2247 let display_row = DisplayRow(rows.start.0 + ix as u32);
2248 line_number.clear();
2249 let non_relative_number = row_info.buffer_row? + 1;
2250 let number = relative_rows
2251 .get(&display_row)
2252 .unwrap_or(&non_relative_number);
2253 write!(&mut line_number, "{number}").unwrap();
2254 if row_info
2255 .diff_status
2256 .is_some_and(|status| status.is_deleted())
2257 {
2258 return None;
2259 }
2260
2261 let color = cx.theme().colors().editor_line_number;
2262 let shaped_line = self
2263 .shape_line_number(SharedString::from(&line_number), color, window)
2264 .log_err()?;
2265 let scroll_top = scroll_position.y * line_height;
2266 let line_origin = gutter_hitbox.map(|hitbox| {
2267 hitbox.origin
2268 + point(
2269 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2270 ix as f32 * line_height - (scroll_top % line_height),
2271 )
2272 });
2273
2274 #[cfg(not(test))]
2275 let hitbox = line_origin.map(|line_origin| {
2276 window.insert_hitbox(
2277 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2278 false,
2279 )
2280 });
2281 #[cfg(test)]
2282 let hitbox = {
2283 let _ = line_origin;
2284 None
2285 };
2286
2287 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2288 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2289 let line_number = LineNumberLayout {
2290 shaped_line,
2291 hitbox,
2292 display_row,
2293 };
2294 Some((multi_buffer_row, line_number))
2295 })
2296 .collect();
2297 Arc::new(line_numbers)
2298 }
2299
2300 fn layout_crease_toggles(
2301 &self,
2302 rows: Range<DisplayRow>,
2303 row_infos: &[RowInfo],
2304 active_rows: &BTreeMap<DisplayRow, bool>,
2305 snapshot: &EditorSnapshot,
2306 window: &mut Window,
2307 cx: &mut App,
2308 ) -> Vec<Option<AnyElement>> {
2309 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2310 && snapshot.mode == EditorMode::Full
2311 && self.editor.read(cx).is_singleton(cx);
2312 if include_fold_statuses {
2313 row_infos
2314 .into_iter()
2315 .enumerate()
2316 .map(|(ix, info)| {
2317 let row = info.multibuffer_row?;
2318 let display_row = DisplayRow(rows.start.0 + ix as u32);
2319 let active = active_rows.contains_key(&display_row);
2320
2321 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2322 })
2323 .collect()
2324 } else {
2325 Vec::new()
2326 }
2327 }
2328
2329 fn layout_crease_trailers(
2330 &self,
2331 buffer_rows: impl IntoIterator<Item = RowInfo>,
2332 snapshot: &EditorSnapshot,
2333 window: &mut Window,
2334 cx: &mut App,
2335 ) -> Vec<Option<AnyElement>> {
2336 buffer_rows
2337 .into_iter()
2338 .map(|row_info| {
2339 if let Some(row) = row_info.multibuffer_row {
2340 snapshot.render_crease_trailer(row, window, cx)
2341 } else {
2342 None
2343 }
2344 })
2345 .collect()
2346 }
2347
2348 fn layout_lines(
2349 rows: Range<DisplayRow>,
2350 snapshot: &EditorSnapshot,
2351 style: &EditorStyle,
2352 editor_width: Pixels,
2353 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2354 window: &mut Window,
2355 cx: &mut App,
2356 ) -> Vec<LineWithInvisibles> {
2357 if rows.start >= rows.end {
2358 return Vec::new();
2359 }
2360
2361 // Show the placeholder when the editor is empty
2362 if snapshot.is_empty() {
2363 let font_size = style.text.font_size.to_pixels(window.rem_size());
2364 let placeholder_color = cx.theme().colors().text_placeholder;
2365 let placeholder_text = snapshot.placeholder_text();
2366
2367 let placeholder_lines = placeholder_text
2368 .as_ref()
2369 .map_or("", AsRef::as_ref)
2370 .split('\n')
2371 .skip(rows.start.0 as usize)
2372 .chain(iter::repeat(""))
2373 .take(rows.len());
2374 placeholder_lines
2375 .filter_map(move |line| {
2376 let run = TextRun {
2377 len: line.len(),
2378 font: style.text.font(),
2379 color: placeholder_color,
2380 background_color: None,
2381 underline: Default::default(),
2382 strikethrough: None,
2383 };
2384 window
2385 .text_system()
2386 .shape_line(line.to_string().into(), font_size, &[run])
2387 .log_err()
2388 })
2389 .map(|line| LineWithInvisibles {
2390 width: line.width,
2391 len: line.len,
2392 fragments: smallvec![LineFragment::Text(line)],
2393 invisibles: Vec::new(),
2394 font_size,
2395 })
2396 .collect()
2397 } else {
2398 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2399 LineWithInvisibles::from_chunks(
2400 chunks,
2401 &style,
2402 MAX_LINE_LEN,
2403 rows.len(),
2404 snapshot.mode,
2405 editor_width,
2406 is_row_soft_wrapped,
2407 window,
2408 cx,
2409 )
2410 }
2411 }
2412
2413 #[allow(clippy::too_many_arguments)]
2414 fn prepaint_lines(
2415 &self,
2416 start_row: DisplayRow,
2417 line_layouts: &mut [LineWithInvisibles],
2418 line_height: Pixels,
2419 scroll_pixel_position: gpui::Point<Pixels>,
2420 content_origin: gpui::Point<Pixels>,
2421 window: &mut Window,
2422 cx: &mut App,
2423 ) -> SmallVec<[AnyElement; 1]> {
2424 let mut line_elements = SmallVec::new();
2425 for (ix, line) in line_layouts.iter_mut().enumerate() {
2426 let row = start_row + DisplayRow(ix as u32);
2427 line.prepaint(
2428 line_height,
2429 scroll_pixel_position,
2430 row,
2431 content_origin,
2432 &mut line_elements,
2433 window,
2434 cx,
2435 );
2436 }
2437 line_elements
2438 }
2439
2440 #[allow(clippy::too_many_arguments)]
2441 fn render_block(
2442 &self,
2443 block: &Block,
2444 available_width: AvailableSpace,
2445 block_id: BlockId,
2446 block_row_start: DisplayRow,
2447 snapshot: &EditorSnapshot,
2448 text_x: Pixels,
2449 rows: &Range<DisplayRow>,
2450 line_layouts: &[LineWithInvisibles],
2451 gutter_dimensions: &GutterDimensions,
2452 line_height: Pixels,
2453 em_width: Pixels,
2454 text_hitbox: &Hitbox,
2455 editor_width: Pixels,
2456 scroll_width: &mut Pixels,
2457 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2458 selections: &[Selection<Point>],
2459 selected_buffer_ids: &Vec<BufferId>,
2460 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2461 sticky_header_excerpt_id: Option<ExcerptId>,
2462 window: &mut Window,
2463 cx: &mut App,
2464 ) -> (AnyElement, Size<Pixels>) {
2465 let mut element = match block {
2466 Block::Custom(block) => {
2467 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2468 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2469 let align_to = block_start.to_display_point(snapshot);
2470 let anchor_x = text_x
2471 + if rows.contains(&align_to.row()) {
2472 line_layouts[align_to.row().minus(rows.start) as usize]
2473 .x_for_index(align_to.column() as usize)
2474 } else {
2475 layout_line(
2476 align_to.row(),
2477 snapshot,
2478 &self.style,
2479 editor_width,
2480 is_row_soft_wrapped,
2481 window,
2482 cx,
2483 )
2484 .x_for_index(align_to.column() as usize)
2485 };
2486
2487 let selected = selections
2488 .binary_search_by(|selection| {
2489 if selection.end <= block_start {
2490 Ordering::Less
2491 } else if selection.start >= block_end {
2492 Ordering::Greater
2493 } else {
2494 Ordering::Equal
2495 }
2496 })
2497 .is_ok();
2498
2499 div()
2500 .size_full()
2501 .child(block.render(&mut BlockContext {
2502 window,
2503 app: cx,
2504 anchor_x,
2505 gutter_dimensions,
2506 line_height,
2507 em_width,
2508 block_id,
2509 selected,
2510 max_width: text_hitbox.size.width.max(*scroll_width),
2511 editor_style: &self.style,
2512 }))
2513 .into_any()
2514 }
2515
2516 Block::FoldedBuffer {
2517 first_excerpt,
2518 prev_excerpt,
2519 show_excerpt_controls,
2520 height,
2521 } => {
2522 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2523 let mut result = v_flex().id(block_id).w_full();
2524
2525 if let Some(prev_excerpt) = prev_excerpt {
2526 if *show_excerpt_controls {
2527 result = result.child(self.render_expand_excerpt_control(
2528 block_id,
2529 ExpandExcerptDirection::Down,
2530 prev_excerpt.id,
2531 gutter_dimensions,
2532 window,
2533 cx,
2534 ));
2535 }
2536 }
2537
2538 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2539 result
2540 .child(self.render_buffer_header(
2541 first_excerpt,
2542 true,
2543 selected,
2544 jump_data,
2545 window,
2546 cx,
2547 ))
2548 .into_any_element()
2549 }
2550
2551 Block::ExcerptBoundary {
2552 prev_excerpt,
2553 next_excerpt,
2554 show_excerpt_controls,
2555 height,
2556 starts_new_buffer,
2557 } => {
2558 let color = cx.theme().colors().clone();
2559 let mut result = v_flex().id(block_id).w_full();
2560
2561 if let Some(prev_excerpt) = prev_excerpt {
2562 if *show_excerpt_controls {
2563 result = result.child(self.render_expand_excerpt_control(
2564 block_id,
2565 ExpandExcerptDirection::Down,
2566 prev_excerpt.id,
2567 gutter_dimensions,
2568 window,
2569 cx,
2570 ));
2571 }
2572 }
2573
2574 if let Some(next_excerpt) = next_excerpt {
2575 let jump_data =
2576 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2577
2578 if *starts_new_buffer {
2579 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2580 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2581
2582 result = result.child(self.render_buffer_header(
2583 next_excerpt,
2584 false,
2585 selected,
2586 jump_data,
2587 window,
2588 cx,
2589 ));
2590 } else {
2591 result = result
2592 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2593 }
2594
2595 if *show_excerpt_controls {
2596 result = result.child(self.render_expand_excerpt_control(
2597 block_id,
2598 ExpandExcerptDirection::Up,
2599 next_excerpt.id,
2600 gutter_dimensions,
2601 window,
2602 cx,
2603 ));
2604 }
2605 } else {
2606 if *show_excerpt_controls {
2607 result = result.child(
2608 h_flex()
2609 .relative()
2610 .child(
2611 div()
2612 .top(px(0.))
2613 .absolute()
2614 .w_full()
2615 .h_px()
2616 .bg(color.border_variant),
2617 )
2618 .child(self.render_expand_excerpt_control(
2619 block_id,
2620 ExpandExcerptDirection::Up,
2621 next_excerpt.id,
2622 gutter_dimensions,
2623 window,
2624 cx,
2625 )),
2626 );
2627 }
2628 };
2629 }
2630
2631 result.into_any()
2632 }
2633 };
2634
2635 // Discover the element's content height, then round up to the nearest multiple of line height.
2636 let preliminary_size = element.layout_as_root(
2637 size(available_width, AvailableSpace::MinContent),
2638 window,
2639 cx,
2640 );
2641 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2642 let final_size = if preliminary_size.height == quantized_height {
2643 preliminary_size
2644 } else {
2645 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2646 };
2647
2648 if let BlockId::Custom(custom_block_id) = block_id {
2649 if block.height() > 0 {
2650 let element_height_in_lines =
2651 ((final_size.height / line_height).ceil() as u32).max(1);
2652 if element_height_in_lines != block.height() {
2653 resized_blocks.insert(custom_block_id, element_height_in_lines);
2654 }
2655 }
2656 }
2657
2658 (element, final_size)
2659 }
2660
2661 fn render_buffer_header(
2662 &self,
2663 for_excerpt: &ExcerptInfo,
2664 is_folded: bool,
2665 is_selected: bool,
2666 jump_data: JumpData,
2667 window: &mut Window,
2668 cx: &mut App,
2669 ) -> Div {
2670 let file_status = maybe!({
2671 let project = self.editor.read(cx).project.as_ref()?.read(cx);
2672 let (repo, path) =
2673 project.repository_and_path_for_buffer_id(for_excerpt.buffer_id, cx)?;
2674 let status = repo.read(cx).repository_entry.status_for_path(&path)?;
2675 Some(status.status)
2676 })
2677 .filter(|_| {
2678 self.editor
2679 .read(cx)
2680 .buffer
2681 .read(cx)
2682 .all_diff_hunks_expanded()
2683 });
2684
2685 let include_root = self
2686 .editor
2687 .read(cx)
2688 .project
2689 .as_ref()
2690 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2691 .unwrap_or_default();
2692 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2693 let filename = path
2694 .as_ref()
2695 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2696 let parent_path = path.as_ref().and_then(|path| {
2697 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2698 });
2699 let focus_handle = self.editor.focus_handle(cx);
2700 let colors = cx.theme().colors();
2701
2702 div()
2703 .px_2()
2704 .pt_2()
2705 .w_full()
2706 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2707 .child(
2708 h_flex()
2709 .size_full()
2710 .gap_2()
2711 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2712 .pl_0p5()
2713 .pr_5()
2714 .rounded_md()
2715 .shadow_md()
2716 .border_1()
2717 .map(|div| {
2718 let border_color = if is_selected && is_folded {
2719 colors.border_focused
2720 } else {
2721 colors.border
2722 };
2723 div.border_color(border_color)
2724 })
2725 .bg(colors.editor_subheader_background)
2726 .hover(|style| style.bg(colors.element_hover))
2727 .map(|header| {
2728 let editor = self.editor.clone();
2729 let buffer_id = for_excerpt.buffer_id;
2730 let toggle_chevron_icon =
2731 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2732 header.child(
2733 div()
2734 .hover(|style| style.bg(colors.element_selected))
2735 .rounded_sm()
2736 .child(
2737 ButtonLike::new("toggle-buffer-fold")
2738 .style(ui::ButtonStyle::Transparent)
2739 .size(ButtonSize::Large)
2740 .width(px(30.).into())
2741 .children(toggle_chevron_icon)
2742 .tooltip({
2743 let focus_handle = focus_handle.clone();
2744 move |window, cx| {
2745 Tooltip::for_action_in(
2746 "Toggle Excerpt Fold",
2747 &ToggleFold,
2748 &focus_handle,
2749 window,
2750 cx,
2751 )
2752 }
2753 })
2754 .on_click(move |_, _, cx| {
2755 if is_folded {
2756 editor.update(cx, |editor, cx| {
2757 editor.unfold_buffer(buffer_id, cx);
2758 });
2759 } else {
2760 editor.update(cx, |editor, cx| {
2761 editor.fold_buffer(buffer_id, cx);
2762 });
2763 }
2764 }),
2765 ),
2766 )
2767 })
2768 .children(
2769 self.editor
2770 .read(cx)
2771 .addons
2772 .values()
2773 .filter_map(|addon| {
2774 addon.render_buffer_header_controls(for_excerpt, window, cx)
2775 })
2776 .take(1),
2777 )
2778 .child(
2779 h_flex()
2780 .cursor_pointer()
2781 .id("path header block")
2782 .size_full()
2783 .justify_between()
2784 .child(
2785 h_flex()
2786 .gap_2()
2787 .child(
2788 Label::new(
2789 filename
2790 .map(SharedString::from)
2791 .unwrap_or_else(|| "untitled".into()),
2792 )
2793 .single_line()
2794 .when_some(
2795 file_status,
2796 |el, status| {
2797 el.color(if status.is_conflicted() {
2798 Color::Conflict
2799 } else if status.is_modified() {
2800 Color::Modified
2801 } else if status.is_deleted() {
2802 Color::Disabled
2803 } else {
2804 Color::Created
2805 })
2806 .when(status.is_deleted(), |el| el.strikethrough())
2807 },
2808 ),
2809 )
2810 .when_some(parent_path, |then, path| {
2811 then.child(div().child(path).text_color(
2812 if file_status.is_some_and(FileStatus::is_deleted) {
2813 colors.text_disabled
2814 } else {
2815 colors.text_muted
2816 },
2817 ))
2818 }),
2819 )
2820 .when(is_selected, |el| {
2821 el.child(
2822 h_flex()
2823 .id("jump-to-file-button")
2824 .gap_2p5()
2825 .child(Label::new("Jump To File"))
2826 .children(
2827 KeyBinding::for_action_in(
2828 &OpenExcerpts,
2829 &focus_handle,
2830 window,
2831 cx,
2832 )
2833 .map(|binding| binding.into_any_element()),
2834 ),
2835 )
2836 })
2837 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2838 .on_click(window.listener_for(&self.editor, {
2839 move |editor, e: &ClickEvent, window, cx| {
2840 editor.open_excerpts_common(
2841 Some(jump_data.clone()),
2842 e.down.modifiers.secondary(),
2843 window,
2844 cx,
2845 );
2846 }
2847 })),
2848 ),
2849 )
2850 }
2851
2852 fn render_expand_excerpt_control(
2853 &self,
2854 block_id: BlockId,
2855 direction: ExpandExcerptDirection,
2856 excerpt_id: ExcerptId,
2857 gutter_dimensions: &GutterDimensions,
2858 window: &Window,
2859 cx: &mut App,
2860 ) -> impl IntoElement {
2861 let color = cx.theme().colors().clone();
2862 let hover_color = color.border_variant.opacity(0.5);
2863 let focus_handle = self.editor.focus_handle(cx).clone();
2864
2865 let icon_offset =
2866 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2867 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2868 let group_name = if direction == ExpandExcerptDirection::Down {
2869 "expand-down"
2870 } else {
2871 "expand-up"
2872 };
2873
2874 let expand_area = |id: SharedString| {
2875 h_flex()
2876 .id(id)
2877 .w_full()
2878 .cursor_pointer()
2879 .block_mouse_down()
2880 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2881 .hover(|style| style.bg(hover_color))
2882 .tooltip({
2883 let focus_handle = focus_handle.clone();
2884 move |window, cx| {
2885 Tooltip::for_action_in(
2886 "Expand Excerpt",
2887 &ExpandExcerpts { lines: 0 },
2888 &focus_handle,
2889 window,
2890 cx,
2891 )
2892 }
2893 })
2894 };
2895
2896 expand_area(
2897 format!(
2898 "block-{}-{}",
2899 block_id,
2900 if direction == ExpandExcerptDirection::Down {
2901 "down"
2902 } else {
2903 "up"
2904 }
2905 )
2906 .into(),
2907 )
2908 .group(group_name)
2909 .child(
2910 h_flex()
2911 .w(icon_offset)
2912 .h(header_height)
2913 .flex_none()
2914 .justify_end()
2915 .child(
2916 ButtonLike::new("expand-icon")
2917 .style(ButtonStyle::Transparent)
2918 .child(
2919 svg()
2920 .path(if direction == ExpandExcerptDirection::Down {
2921 IconName::ArrowDownFromLine.path()
2922 } else {
2923 IconName::ArrowUpFromLine.path()
2924 })
2925 .size(IconSize::XSmall.rems())
2926 .text_color(cx.theme().colors().editor_line_number)
2927 .group_hover(group_name, |style| {
2928 style.text_color(cx.theme().colors().editor_active_line_number)
2929 }),
2930 ),
2931 ),
2932 )
2933 .on_click(window.listener_for(&self.editor, {
2934 move |editor, _, _, cx| {
2935 editor.expand_excerpt(excerpt_id, direction, cx);
2936 cx.stop_propagation();
2937 }
2938 }))
2939 }
2940
2941 #[allow(clippy::too_many_arguments)]
2942 fn render_blocks(
2943 &self,
2944 rows: Range<DisplayRow>,
2945 snapshot: &EditorSnapshot,
2946 hitbox: &Hitbox,
2947 text_hitbox: &Hitbox,
2948 editor_width: Pixels,
2949 scroll_width: &mut Pixels,
2950 gutter_dimensions: &GutterDimensions,
2951 em_width: Pixels,
2952 text_x: Pixels,
2953 line_height: Pixels,
2954 line_layouts: &[LineWithInvisibles],
2955 selections: &[Selection<Point>],
2956 selected_buffer_ids: &Vec<BufferId>,
2957 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2958 sticky_header_excerpt_id: Option<ExcerptId>,
2959 window: &mut Window,
2960 cx: &mut App,
2961 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2962 let (fixed_blocks, non_fixed_blocks) = snapshot
2963 .blocks_in_range(rows.clone())
2964 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2965
2966 let mut focused_block = self
2967 .editor
2968 .update(cx, |editor, _| editor.take_focused_block());
2969 let mut fixed_block_max_width = Pixels::ZERO;
2970 let mut blocks = Vec::new();
2971 let mut resized_blocks = HashMap::default();
2972
2973 for (row, block) in fixed_blocks {
2974 let block_id = block.id();
2975
2976 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2977 focused_block = None;
2978 }
2979
2980 let (element, element_size) = self.render_block(
2981 block,
2982 AvailableSpace::MinContent,
2983 block_id,
2984 row,
2985 snapshot,
2986 text_x,
2987 &rows,
2988 line_layouts,
2989 gutter_dimensions,
2990 line_height,
2991 em_width,
2992 text_hitbox,
2993 editor_width,
2994 scroll_width,
2995 &mut resized_blocks,
2996 selections,
2997 selected_buffer_ids,
2998 is_row_soft_wrapped,
2999 sticky_header_excerpt_id,
3000 window,
3001 cx,
3002 );
3003 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3004 blocks.push(BlockLayout {
3005 id: block_id,
3006 row: Some(row),
3007 element,
3008 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3009 style: BlockStyle::Fixed,
3010 });
3011 }
3012
3013 for (row, block) in non_fixed_blocks {
3014 let style = block.style();
3015 let width = match style {
3016 BlockStyle::Sticky => hitbox.size.width,
3017 BlockStyle::Flex => hitbox
3018 .size
3019 .width
3020 .max(fixed_block_max_width)
3021 .max(gutter_dimensions.width + *scroll_width),
3022 BlockStyle::Fixed => unreachable!(),
3023 };
3024 let block_id = block.id();
3025
3026 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3027 focused_block = None;
3028 }
3029
3030 let (element, element_size) = self.render_block(
3031 block,
3032 width.into(),
3033 block_id,
3034 row,
3035 snapshot,
3036 text_x,
3037 &rows,
3038 line_layouts,
3039 gutter_dimensions,
3040 line_height,
3041 em_width,
3042 text_hitbox,
3043 editor_width,
3044 scroll_width,
3045 &mut resized_blocks,
3046 selections,
3047 selected_buffer_ids,
3048 is_row_soft_wrapped,
3049 sticky_header_excerpt_id,
3050 window,
3051 cx,
3052 );
3053
3054 blocks.push(BlockLayout {
3055 id: block_id,
3056 row: Some(row),
3057 element,
3058 available_space: size(width.into(), element_size.height.into()),
3059 style,
3060 });
3061 }
3062
3063 if let Some(focused_block) = focused_block {
3064 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3065 if focus_handle.is_focused(window) {
3066 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3067 let style = block.style();
3068 let width = match style {
3069 BlockStyle::Fixed => AvailableSpace::MinContent,
3070 BlockStyle::Flex => AvailableSpace::Definite(
3071 hitbox
3072 .size
3073 .width
3074 .max(fixed_block_max_width)
3075 .max(gutter_dimensions.width + *scroll_width),
3076 ),
3077 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3078 };
3079
3080 let (element, element_size) = self.render_block(
3081 &block,
3082 width,
3083 focused_block.id,
3084 rows.end,
3085 snapshot,
3086 text_x,
3087 &rows,
3088 line_layouts,
3089 gutter_dimensions,
3090 line_height,
3091 em_width,
3092 text_hitbox,
3093 editor_width,
3094 scroll_width,
3095 &mut resized_blocks,
3096 selections,
3097 selected_buffer_ids,
3098 is_row_soft_wrapped,
3099 sticky_header_excerpt_id,
3100 window,
3101 cx,
3102 );
3103
3104 blocks.push(BlockLayout {
3105 id: block.id(),
3106 row: None,
3107 element,
3108 available_space: size(width, element_size.height.into()),
3109 style,
3110 });
3111 }
3112 }
3113 }
3114 }
3115
3116 if resized_blocks.is_empty() {
3117 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3118 Ok(blocks)
3119 } else {
3120 Err(resized_blocks)
3121 }
3122 }
3123
3124 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3125 /// a restart of rendering for the editor based on the new sizes.
3126 #[allow(clippy::too_many_arguments)]
3127 fn layout_blocks(
3128 &self,
3129 blocks: &mut Vec<BlockLayout>,
3130 block_starts: &mut HashSet<DisplayRow>,
3131 hitbox: &Hitbox,
3132 line_height: Pixels,
3133 scroll_pixel_position: gpui::Point<Pixels>,
3134 window: &mut Window,
3135 cx: &mut App,
3136 ) {
3137 for block in blocks {
3138 let mut origin = if let Some(row) = block.row {
3139 block_starts.insert(row);
3140 hitbox.origin
3141 + point(
3142 Pixels::ZERO,
3143 row.as_f32() * line_height - scroll_pixel_position.y,
3144 )
3145 } else {
3146 // Position the block outside the visible area
3147 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3148 };
3149
3150 if !matches!(block.style, BlockStyle::Sticky) {
3151 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3152 }
3153
3154 let focus_handle =
3155 block
3156 .element
3157 .prepaint_as_root(origin, block.available_space, window, cx);
3158
3159 if let Some(focus_handle) = focus_handle {
3160 self.editor.update(cx, |editor, _cx| {
3161 editor.set_focused_block(FocusedBlock {
3162 id: block.id,
3163 focus_handle: focus_handle.downgrade(),
3164 });
3165 });
3166 }
3167 }
3168 }
3169
3170 #[allow(clippy::too_many_arguments)]
3171 fn layout_sticky_buffer_header(
3172 &self,
3173 StickyHeaderExcerpt {
3174 excerpt,
3175 next_excerpt_controls_present,
3176 next_buffer_row,
3177 }: StickyHeaderExcerpt<'_>,
3178 scroll_position: f32,
3179 line_height: Pixels,
3180 snapshot: &EditorSnapshot,
3181 hitbox: &Hitbox,
3182 selected_buffer_ids: &Vec<BufferId>,
3183 window: &mut Window,
3184 cx: &mut App,
3185 ) -> AnyElement {
3186 let jump_data = header_jump_data(
3187 snapshot,
3188 DisplayRow(scroll_position as u32),
3189 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3190 excerpt,
3191 );
3192
3193 let editor_bg_color = cx.theme().colors().editor_background;
3194
3195 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3196
3197 let mut header = v_flex()
3198 .relative()
3199 .child(
3200 div()
3201 .w(hitbox.bounds.size.width)
3202 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3203 .bg(linear_gradient(
3204 0.,
3205 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3206 linear_color_stop(editor_bg_color, 0.6),
3207 ))
3208 .absolute()
3209 .top_0(),
3210 )
3211 .child(
3212 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3213 .into_any_element(),
3214 )
3215 .into_any_element();
3216
3217 let mut origin = hitbox.origin;
3218
3219 if let Some(next_buffer_row) = next_buffer_row {
3220 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3221
3222 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3223
3224 if next_excerpt_controls_present {
3225 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3226 }
3227
3228 let offset = scroll_position - max_row as f32;
3229
3230 if offset > 0.0 {
3231 origin.y -= Pixels(offset) * line_height;
3232 }
3233 }
3234
3235 let size = size(
3236 AvailableSpace::Definite(hitbox.size.width),
3237 AvailableSpace::MinContent,
3238 );
3239
3240 header.prepaint_as_root(origin, size, window, cx);
3241
3242 header
3243 }
3244
3245 #[allow(clippy::too_many_arguments)]
3246 fn layout_cursor_popovers(
3247 &self,
3248 line_height: Pixels,
3249 text_hitbox: &Hitbox,
3250 content_origin: gpui::Point<Pixels>,
3251 start_row: DisplayRow,
3252 scroll_pixel_position: gpui::Point<Pixels>,
3253 line_layouts: &[LineWithInvisibles],
3254 cursor: DisplayPoint,
3255 cursor_point: Point,
3256 style: &EditorStyle,
3257 window: &mut Window,
3258 cx: &mut App,
3259 ) {
3260 let mut min_menu_height = Pixels::ZERO;
3261 let mut max_menu_height = Pixels::ZERO;
3262 let mut height_above_menu = Pixels::ZERO;
3263 let height_below_menu = Pixels::ZERO;
3264 let mut edit_prediction_popover_visible = false;
3265 let mut context_menu_visible = false;
3266
3267 {
3268 let editor = self.editor.read(cx);
3269 if editor
3270 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3271 {
3272 height_above_menu +=
3273 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3274 edit_prediction_popover_visible = true;
3275 }
3276
3277 if editor.context_menu_visible() {
3278 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3279 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3280 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3281 context_menu_visible = true;
3282 }
3283 }
3284 }
3285
3286 let visible = edit_prediction_popover_visible || context_menu_visible;
3287 if !visible {
3288 return;
3289 }
3290
3291 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3292 let target_position = content_origin
3293 + gpui::Point {
3294 x: cmp::max(
3295 px(0.),
3296 cursor_row_layout.x_for_index(cursor.column() as usize)
3297 - scroll_pixel_position.x,
3298 ),
3299 y: cmp::max(
3300 px(0.),
3301 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3302 ),
3303 };
3304
3305 let viewport_bounds =
3306 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3307 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3308 ..Default::default()
3309 });
3310
3311 let min_height = height_above_menu + min_menu_height + height_below_menu;
3312 let max_height = height_above_menu + max_menu_height + height_below_menu;
3313 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3314 target_position,
3315 line_height,
3316 min_height,
3317 max_height,
3318 text_hitbox,
3319 viewport_bounds,
3320 window,
3321 cx,
3322 |height, max_width_for_stable_x, y_flipped, window, cx| {
3323 // First layout the menu to get its size - others can be at least this wide.
3324 let context_menu = if context_menu_visible {
3325 let menu_height = if y_flipped {
3326 height - height_below_menu
3327 } else {
3328 height - height_above_menu
3329 };
3330 let mut element = self
3331 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3332 .expect("Visible context menu should always render.");
3333 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3334 Some((CursorPopoverType::CodeContextMenu, element, size))
3335 } else {
3336 None
3337 };
3338 let min_width = context_menu
3339 .as_ref()
3340 .map_or(px(0.), |(_, _, size)| size.width);
3341 let max_width = max_width_for_stable_x.max(
3342 context_menu
3343 .as_ref()
3344 .map_or(px(0.), |(_, _, size)| size.width),
3345 );
3346
3347 let edit_prediction = if edit_prediction_popover_visible {
3348 self.editor.update(cx, move |editor, cx| {
3349 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3350 let mut element = editor.render_edit_prediction_cursor_popover(
3351 min_width,
3352 max_width,
3353 cursor_point,
3354 style,
3355 accept_binding.keystroke(),
3356 window,
3357 cx,
3358 )?;
3359 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3360 Some((CursorPopoverType::EditPrediction, element, size))
3361 })
3362 } else {
3363 None
3364 };
3365 vec![edit_prediction, context_menu]
3366 .into_iter()
3367 .flatten()
3368 .collect::<Vec<_>>()
3369 },
3370 ) else {
3371 return;
3372 };
3373
3374 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3375 .iter()
3376 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3377 else {
3378 return;
3379 };
3380 let last_ix = laid_out_popovers.len() - 1;
3381 let menu_is_last = menu_ix == last_ix;
3382 let first_popover_bounds = laid_out_popovers[0].1;
3383 let last_popover_bounds = laid_out_popovers[last_ix].1;
3384
3385 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3386 // right, and otherwise it goes below or to the right.
3387 let mut target_bounds = Bounds::from_corners(
3388 first_popover_bounds.origin,
3389 last_popover_bounds.bottom_right(),
3390 );
3391 target_bounds.size.width = menu_bounds.size.width;
3392
3393 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3394 // based on this is preferred for layout stability.
3395 let mut max_target_bounds = target_bounds;
3396 max_target_bounds.size.height = max_height;
3397 if y_flipped {
3398 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3399 }
3400
3401 // Add spacing around `target_bounds` and `max_target_bounds`.
3402 let mut extend_amount = Edges::all(MENU_GAP);
3403 if y_flipped {
3404 extend_amount.bottom = line_height;
3405 } else {
3406 extend_amount.top = line_height;
3407 }
3408 let target_bounds = target_bounds.extend(extend_amount);
3409 let max_target_bounds = max_target_bounds.extend(extend_amount);
3410
3411 let must_place_above_or_below =
3412 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3413 laid_out_popovers[menu_ix + 1..]
3414 .iter()
3415 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3416 } else {
3417 false
3418 };
3419
3420 self.layout_context_menu_aside(
3421 y_flipped,
3422 *menu_bounds,
3423 target_bounds,
3424 max_target_bounds,
3425 max_menu_height,
3426 must_place_above_or_below,
3427 text_hitbox,
3428 viewport_bounds,
3429 window,
3430 cx,
3431 );
3432 }
3433
3434 #[allow(clippy::too_many_arguments)]
3435 fn layout_gutter_menu(
3436 &self,
3437 line_height: Pixels,
3438 text_hitbox: &Hitbox,
3439 content_origin: gpui::Point<Pixels>,
3440 scroll_pixel_position: gpui::Point<Pixels>,
3441 gutter_overshoot: Pixels,
3442 window: &mut Window,
3443 cx: &mut App,
3444 ) {
3445 let editor = self.editor.read(cx);
3446 if !editor.context_menu_visible() {
3447 return;
3448 }
3449 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3450 editor.context_menu_origin()
3451 else {
3452 return;
3453 };
3454 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3455 // indicator than just a plain first column of the text field.
3456 let target_position = content_origin
3457 + gpui::Point {
3458 x: -gutter_overshoot,
3459 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3460 };
3461 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3462 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3463 let viewport_bounds =
3464 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3465 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3466 ..Default::default()
3467 });
3468 self.layout_popovers_above_or_below_line(
3469 target_position,
3470 line_height,
3471 min_height,
3472 max_height,
3473 text_hitbox,
3474 viewport_bounds,
3475 window,
3476 cx,
3477 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3478 let mut element = self
3479 .render_context_menu(line_height, height, y_flipped, window, cx)
3480 .expect("Visible context menu should always render.");
3481 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3482 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3483 },
3484 );
3485 }
3486
3487 #[allow(clippy::too_many_arguments)]
3488 fn layout_popovers_above_or_below_line(
3489 &self,
3490 target_position: gpui::Point<Pixels>,
3491 line_height: Pixels,
3492 min_height: Pixels,
3493 max_height: Pixels,
3494 text_hitbox: &Hitbox,
3495 viewport_bounds: Bounds<Pixels>,
3496 window: &mut Window,
3497 cx: &mut App,
3498 make_sized_popovers: impl FnOnce(
3499 Pixels,
3500 Pixels,
3501 bool,
3502 &mut Window,
3503 &mut App,
3504 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3505 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3506 let text_style = TextStyleRefinement {
3507 line_height: Some(DefiniteLength::Fraction(
3508 BufferLineHeight::Comfortable.value(),
3509 )),
3510 ..Default::default()
3511 };
3512 window.with_text_style(Some(text_style), |window| {
3513 // If the max height won't fit below and there is more space above, put it above the line.
3514 let bottom_y_when_flipped = target_position.y - line_height;
3515 let available_above = bottom_y_when_flipped - text_hitbox.top();
3516 let available_below = text_hitbox.bottom() - target_position.y;
3517 let y_overflows_below = max_height > available_below;
3518 let mut y_flipped = y_overflows_below && available_above > available_below;
3519 let mut height = cmp::min(
3520 max_height,
3521 if y_flipped {
3522 available_above
3523 } else {
3524 available_below
3525 },
3526 );
3527
3528 // If the min height doesn't fit within text bounds, instead fit within the window.
3529 if height < min_height {
3530 let available_above = bottom_y_when_flipped;
3531 let available_below = viewport_bounds.bottom() - target_position.y;
3532 if available_below > min_height {
3533 y_flipped = false;
3534 height = min_height;
3535 } else if available_above > min_height {
3536 y_flipped = true;
3537 height = min_height;
3538 } else if available_above > available_below {
3539 y_flipped = true;
3540 height = available_above;
3541 } else {
3542 y_flipped = false;
3543 height = available_below;
3544 }
3545 }
3546
3547 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3548
3549 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3550 // for very narrow windows.
3551 let popovers =
3552 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3553 if popovers.is_empty() {
3554 return None;
3555 }
3556
3557 let max_width = popovers
3558 .iter()
3559 .map(|(_, _, size)| size.width)
3560 .max()
3561 .unwrap_or_default();
3562
3563 let mut current_position = gpui::Point {
3564 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3565 // overflow. Include space for the scrollbar.
3566 x: target_position
3567 .x
3568 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3569 y: if y_flipped {
3570 bottom_y_when_flipped
3571 } else {
3572 target_position.y
3573 },
3574 };
3575
3576 let mut laid_out_popovers = popovers
3577 .into_iter()
3578 .map(|(popover_type, element, size)| {
3579 if y_flipped {
3580 current_position.y -= size.height;
3581 }
3582 let position = current_position;
3583 window.defer_draw(element, current_position, 1);
3584 if !y_flipped {
3585 current_position.y += size.height + MENU_GAP;
3586 } else {
3587 current_position.y -= MENU_GAP;
3588 }
3589 (popover_type, Bounds::new(position, size))
3590 })
3591 .collect::<Vec<_>>();
3592
3593 if y_flipped {
3594 laid_out_popovers.reverse();
3595 }
3596
3597 Some((laid_out_popovers, y_flipped))
3598 })
3599 }
3600
3601 #[allow(clippy::too_many_arguments)]
3602 fn layout_context_menu_aside(
3603 &self,
3604 y_flipped: bool,
3605 menu_bounds: Bounds<Pixels>,
3606 target_bounds: Bounds<Pixels>,
3607 max_target_bounds: Bounds<Pixels>,
3608 max_height: Pixels,
3609 must_place_above_or_below: bool,
3610 text_hitbox: &Hitbox,
3611 viewport_bounds: Bounds<Pixels>,
3612 window: &mut Window,
3613 cx: &mut App,
3614 ) {
3615 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3616 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3617 && !must_place_above_or_below
3618 {
3619 let max_width = cmp::min(
3620 available_within_viewport.right - px(1.),
3621 MENU_ASIDE_MAX_WIDTH,
3622 );
3623 let Some(mut aside) = self.render_context_menu_aside(
3624 size(max_width, max_height - POPOVER_Y_PADDING),
3625 window,
3626 cx,
3627 ) else {
3628 return;
3629 };
3630 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3631 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3632 Some((aside, right_position))
3633 } else {
3634 let max_size = size(
3635 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3636 // won't be needed here.
3637 cmp::min(
3638 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3639 viewport_bounds.right(),
3640 ),
3641 cmp::min(
3642 max_height,
3643 cmp::max(
3644 available_within_viewport.top,
3645 available_within_viewport.bottom,
3646 ),
3647 ) - POPOVER_Y_PADDING,
3648 );
3649 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3650 return;
3651 };
3652 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3653
3654 let top_position = point(
3655 menu_bounds.origin.x,
3656 target_bounds.top() - actual_size.height,
3657 );
3658 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3659
3660 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3661 // Prefer to fit on the same side of the line as the menu, then on the other side of
3662 // the line.
3663 if !y_flipped && wanted.height < available.bottom {
3664 Some(bottom_position)
3665 } else if !y_flipped && wanted.height < available.top {
3666 Some(top_position)
3667 } else if y_flipped && wanted.height < available.top {
3668 Some(top_position)
3669 } else if y_flipped && wanted.height < available.bottom {
3670 Some(bottom_position)
3671 } else {
3672 None
3673 }
3674 };
3675
3676 // Prefer choosing a direction using max sizes rather than actual size for stability.
3677 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3678 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3679 let aside_position = fit_within(available_within_text, wanted)
3680 // Fallback: fit max size in window.
3681 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3682 // Fallback: fit actual size in window.
3683 .or_else(|| fit_within(available_within_viewport, actual_size));
3684
3685 aside_position.map(|position| (aside, position))
3686 };
3687
3688 // Skip drawing if it doesn't fit anywhere.
3689 if let Some((aside, position)) = positioned_aside {
3690 window.defer_draw(aside, position, 2);
3691 }
3692 }
3693
3694 fn render_context_menu(
3695 &self,
3696 line_height: Pixels,
3697 height: Pixels,
3698 y_flipped: bool,
3699 window: &mut Window,
3700 cx: &mut App,
3701 ) -> Option<AnyElement> {
3702 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3703 self.editor.update(cx, |editor, cx| {
3704 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3705 })
3706 }
3707
3708 fn render_context_menu_aside(
3709 &self,
3710 max_size: Size<Pixels>,
3711 window: &mut Window,
3712 cx: &mut App,
3713 ) -> Option<AnyElement> {
3714 if max_size.width < px(100.) || max_size.height < px(12.) {
3715 None
3716 } else {
3717 self.editor.update(cx, |editor, cx| {
3718 editor.render_context_menu_aside(max_size, window, cx)
3719 })
3720 }
3721 }
3722
3723 fn layout_mouse_context_menu(
3724 &self,
3725 editor_snapshot: &EditorSnapshot,
3726 visible_range: Range<DisplayRow>,
3727 content_origin: gpui::Point<Pixels>,
3728 window: &mut Window,
3729 cx: &mut App,
3730 ) -> Option<AnyElement> {
3731 let position = self.editor.update(cx, |editor, _cx| {
3732 let visible_start_point = editor.display_to_pixel_point(
3733 DisplayPoint::new(visible_range.start, 0),
3734 editor_snapshot,
3735 window,
3736 )?;
3737 let visible_end_point = editor.display_to_pixel_point(
3738 DisplayPoint::new(visible_range.end, 0),
3739 editor_snapshot,
3740 window,
3741 )?;
3742
3743 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3744 let (source_display_point, position) = match mouse_context_menu.position {
3745 MenuPosition::PinnedToScreen(point) => (None, point),
3746 MenuPosition::PinnedToEditor { source, offset } => {
3747 let source_display_point = source.to_display_point(editor_snapshot);
3748 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3749 let position = content_origin + source_point + offset;
3750 (Some(source_display_point), position)
3751 }
3752 };
3753
3754 let source_included = source_display_point.map_or(true, |source_display_point| {
3755 visible_range
3756 .to_inclusive()
3757 .contains(&source_display_point.row())
3758 });
3759 let position_included =
3760 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3761 if !source_included && !position_included {
3762 None
3763 } else {
3764 Some(position)
3765 }
3766 })?;
3767
3768 let text_style = TextStyleRefinement {
3769 line_height: Some(DefiniteLength::Fraction(
3770 BufferLineHeight::Comfortable.value(),
3771 )),
3772 ..Default::default()
3773 };
3774 window.with_text_style(Some(text_style), |window| {
3775 let mut element = self.editor.update(cx, |editor, _| {
3776 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3777 let context_menu = mouse_context_menu.context_menu.clone();
3778
3779 Some(
3780 deferred(
3781 anchored()
3782 .position(position)
3783 .child(context_menu)
3784 .anchor(Corner::TopLeft)
3785 .snap_to_window_with_margin(px(8.)),
3786 )
3787 .with_priority(1)
3788 .into_any(),
3789 )
3790 })?;
3791
3792 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3793 Some(element)
3794 })
3795 }
3796
3797 #[allow(clippy::too_many_arguments)]
3798 fn layout_hover_popovers(
3799 &self,
3800 snapshot: &EditorSnapshot,
3801 hitbox: &Hitbox,
3802 text_hitbox: &Hitbox,
3803 visible_display_row_range: Range<DisplayRow>,
3804 content_origin: gpui::Point<Pixels>,
3805 scroll_pixel_position: gpui::Point<Pixels>,
3806 line_layouts: &[LineWithInvisibles],
3807 line_height: Pixels,
3808 em_width: Pixels,
3809 window: &mut Window,
3810 cx: &mut App,
3811 ) {
3812 struct MeasuredHoverPopover {
3813 element: AnyElement,
3814 size: Size<Pixels>,
3815 horizontal_offset: Pixels,
3816 }
3817
3818 let max_size = size(
3819 (120. * em_width) // Default size
3820 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3821 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3822 (16. * line_height) // Default size
3823 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3824 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3825 );
3826
3827 let hover_popovers = self.editor.update(cx, |editor, cx| {
3828 editor
3829 .hover_state
3830 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3831 });
3832 let Some((position, hover_popovers)) = hover_popovers else {
3833 return;
3834 };
3835
3836 // This is safe because we check on layout whether the required row is available
3837 let hovered_row_layout =
3838 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3839
3840 // Compute Hovered Point
3841 let x =
3842 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3843 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3844 let hovered_point = content_origin + point(x, y);
3845
3846 let mut overall_height = Pixels::ZERO;
3847 let mut measured_hover_popovers = Vec::new();
3848 for mut hover_popover in hover_popovers {
3849 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3850 let horizontal_offset =
3851 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3852
3853 overall_height += HOVER_POPOVER_GAP + size.height;
3854
3855 measured_hover_popovers.push(MeasuredHoverPopover {
3856 element: hover_popover,
3857 size,
3858 horizontal_offset,
3859 });
3860 }
3861 overall_height += HOVER_POPOVER_GAP;
3862
3863 fn draw_occluder(
3864 width: Pixels,
3865 origin: gpui::Point<Pixels>,
3866 window: &mut Window,
3867 cx: &mut App,
3868 ) {
3869 let mut occlusion = div()
3870 .size_full()
3871 .occlude()
3872 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3873 .into_any_element();
3874 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3875 window.defer_draw(occlusion, origin, 2);
3876 }
3877
3878 if hovered_point.y > overall_height {
3879 // There is enough space above. Render popovers above the hovered point
3880 let mut current_y = hovered_point.y;
3881 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3882 let size = popover.size;
3883 let popover_origin = point(
3884 hovered_point.x + popover.horizontal_offset,
3885 current_y - size.height,
3886 );
3887
3888 window.defer_draw(popover.element, popover_origin, 2);
3889 if position != itertools::Position::Last {
3890 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3891 draw_occluder(size.width, origin, window, cx);
3892 }
3893
3894 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3895 }
3896 } else {
3897 // There is not enough space above. Render popovers below the hovered point
3898 let mut current_y = hovered_point.y + line_height;
3899 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3900 let size = popover.size;
3901 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3902
3903 window.defer_draw(popover.element, popover_origin, 2);
3904 if position != itertools::Position::Last {
3905 let origin = point(popover_origin.x, popover_origin.y + size.height);
3906 draw_occluder(size.width, origin, window, cx);
3907 }
3908
3909 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3910 }
3911 }
3912 }
3913
3914 #[allow(clippy::too_many_arguments)]
3915 fn layout_diff_hunk_controls(
3916 &self,
3917 row_range: Range<DisplayRow>,
3918 row_infos: &[RowInfo],
3919 text_hitbox: &Hitbox,
3920 position_map: &PositionMap,
3921 newest_cursor_position: Option<DisplayPoint>,
3922 line_height: Pixels,
3923 scroll_pixel_position: gpui::Point<Pixels>,
3924 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3925 editor: Entity<Editor>,
3926 window: &mut Window,
3927 cx: &mut App,
3928 ) -> Vec<AnyElement> {
3929 let point_for_position = position_map.point_for_position(window.mouse_position());
3930
3931 let mut controls = vec![];
3932
3933 let active_positions = [
3934 Some(point_for_position.previous_valid),
3935 newest_cursor_position,
3936 ];
3937
3938 for (hunk, _) in display_hunks {
3939 if let DisplayDiffHunk::Unfolded {
3940 display_row_range,
3941 multi_buffer_range,
3942 status,
3943 ..
3944 } = &hunk
3945 {
3946 if display_row_range.start < row_range.start
3947 || display_row_range.start >= row_range.end
3948 {
3949 continue;
3950 }
3951 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3952 if row_infos[row_ix].diff_status.is_none() {
3953 continue;
3954 }
3955 if row_infos[row_ix]
3956 .diff_status
3957 .is_some_and(|status| status.is_added())
3958 && !status.is_added()
3959 {
3960 continue;
3961 }
3962 if active_positions
3963 .iter()
3964 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3965 {
3966 let y = display_row_range.start.as_f32() * line_height
3967 + text_hitbox.bounds.top()
3968 - scroll_pixel_position.y;
3969
3970 let mut element = diff_hunk_controls(
3971 display_row_range.start.0,
3972 status,
3973 multi_buffer_range.clone(),
3974 line_height,
3975 &editor,
3976 cx,
3977 );
3978 let size =
3979 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3980
3981 let x = text_hitbox.bounds.right()
3982 - self.style.scrollbar_width
3983 - px(10.)
3984 - size.width;
3985
3986 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3987 element.prepaint(window, cx)
3988 });
3989 controls.push(element);
3990 }
3991 }
3992 }
3993
3994 controls
3995 }
3996
3997 #[allow(clippy::too_many_arguments)]
3998 fn layout_signature_help(
3999 &self,
4000 hitbox: &Hitbox,
4001 content_origin: gpui::Point<Pixels>,
4002 scroll_pixel_position: gpui::Point<Pixels>,
4003 newest_selection_head: Option<DisplayPoint>,
4004 start_row: DisplayRow,
4005 line_layouts: &[LineWithInvisibles],
4006 line_height: Pixels,
4007 em_width: Pixels,
4008 window: &mut Window,
4009 cx: &mut App,
4010 ) {
4011 if !self.editor.focus_handle(cx).is_focused(window) {
4012 return;
4013 }
4014 let Some(newest_selection_head) = newest_selection_head else {
4015 return;
4016 };
4017 let selection_row = newest_selection_head.row();
4018 if selection_row < start_row {
4019 return;
4020 }
4021 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4022 else {
4023 return;
4024 };
4025
4026 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4027 - scroll_pixel_position.x
4028 + content_origin.x;
4029 let start_y =
4030 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4031
4032 let max_size = size(
4033 (120. * em_width) // Default size
4034 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4035 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4036 (16. * line_height) // Default size
4037 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4038 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4039 );
4040
4041 let maybe_element = self.editor.update(cx, |editor, cx| {
4042 if let Some(popover) = editor.signature_help_state.popover_mut() {
4043 let element = popover.render(max_size, cx);
4044 Some(element)
4045 } else {
4046 None
4047 }
4048 });
4049 if let Some(mut element) = maybe_element {
4050 let window_size = window.viewport_size();
4051 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4052 let mut point = point(start_x, start_y - size.height);
4053
4054 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4055 if point.x + size.width >= window_size.width {
4056 point.x = window_size.width - size.width;
4057 }
4058
4059 window.defer_draw(element, point, 1)
4060 }
4061 }
4062
4063 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4064 window.paint_layer(layout.hitbox.bounds, |window| {
4065 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4066 let gutter_bg = cx.theme().colors().editor_gutter_background;
4067 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4068 window.paint_quad(fill(
4069 layout.position_map.text_hitbox.bounds,
4070 self.style.background,
4071 ));
4072
4073 if let EditorMode::Full = layout.mode {
4074 let mut active_rows = layout.active_rows.iter().peekable();
4075 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4076 let mut end_row = start_row.0;
4077 while active_rows
4078 .peek()
4079 .map_or(false, |(active_row, has_selection)| {
4080 active_row.0 == end_row + 1
4081 && *has_selection == contains_non_empty_selection
4082 })
4083 {
4084 active_rows.next().unwrap();
4085 end_row += 1;
4086 }
4087
4088 if !contains_non_empty_selection {
4089 let highlight_h_range =
4090 match layout.position_map.snapshot.current_line_highlight {
4091 CurrentLineHighlight::Gutter => Some(Range {
4092 start: layout.hitbox.left(),
4093 end: layout.gutter_hitbox.right(),
4094 }),
4095 CurrentLineHighlight::Line => Some(Range {
4096 start: layout.position_map.text_hitbox.bounds.left(),
4097 end: layout.position_map.text_hitbox.bounds.right(),
4098 }),
4099 CurrentLineHighlight::All => Some(Range {
4100 start: layout.hitbox.left(),
4101 end: layout.hitbox.right(),
4102 }),
4103 CurrentLineHighlight::None => None,
4104 };
4105 if let Some(range) = highlight_h_range {
4106 let active_line_bg = cx.theme().colors().editor_active_line_background;
4107 let bounds = Bounds {
4108 origin: point(
4109 range.start,
4110 layout.hitbox.origin.y
4111 + (start_row.as_f32() - scroll_top)
4112 * layout.position_map.line_height,
4113 ),
4114 size: size(
4115 range.end - range.start,
4116 layout.position_map.line_height
4117 * (end_row - start_row.0 + 1) as f32,
4118 ),
4119 };
4120 window.paint_quad(fill(bounds, active_line_bg));
4121 }
4122 }
4123 }
4124
4125 let mut paint_highlight =
4126 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4127 let origin = point(
4128 layout.hitbox.origin.x,
4129 layout.hitbox.origin.y
4130 + (highlight_row_start.as_f32() - scroll_top)
4131 * layout.position_map.line_height,
4132 );
4133 let size = size(
4134 layout.hitbox.size.width,
4135 layout.position_map.line_height
4136 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4137 );
4138 window.paint_quad(fill(Bounds { origin, size }, color));
4139 };
4140
4141 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4142 for (&new_row, &new_background) in &layout.highlighted_rows {
4143 match &mut current_paint {
4144 Some((current_background, current_range)) => {
4145 let current_background = *current_background;
4146 let new_range_started = current_background != new_background
4147 || current_range.end.next_row() != new_row;
4148 if new_range_started {
4149 paint_highlight(
4150 current_range.start,
4151 current_range.end,
4152 current_background,
4153 );
4154 current_paint = Some((new_background, new_row..new_row));
4155 continue;
4156 } else {
4157 current_range.end = current_range.end.next_row();
4158 }
4159 }
4160 None => current_paint = Some((new_background, new_row..new_row)),
4161 };
4162 }
4163 if let Some((color, range)) = current_paint {
4164 paint_highlight(range.start, range.end, color);
4165 }
4166
4167 let scroll_left =
4168 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4169
4170 for (wrap_position, active) in layout.wrap_guides.iter() {
4171 let x = (layout.position_map.text_hitbox.origin.x
4172 + *wrap_position
4173 + layout.position_map.em_width / 2.)
4174 - scroll_left;
4175
4176 let show_scrollbars = {
4177 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4178
4179 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4180 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4181 };
4182
4183 if x < layout.position_map.text_hitbox.origin.x
4184 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4185 {
4186 continue;
4187 }
4188
4189 let color = if *active {
4190 cx.theme().colors().editor_active_wrap_guide
4191 } else {
4192 cx.theme().colors().editor_wrap_guide
4193 };
4194 window.paint_quad(fill(
4195 Bounds {
4196 origin: point(x, layout.position_map.text_hitbox.origin.y),
4197 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4198 },
4199 color,
4200 ));
4201 }
4202 }
4203 })
4204 }
4205
4206 fn paint_indent_guides(
4207 &mut self,
4208 layout: &mut EditorLayout,
4209 window: &mut Window,
4210 cx: &mut App,
4211 ) {
4212 let Some(indent_guides) = &layout.indent_guides else {
4213 return;
4214 };
4215
4216 let faded_color = |color: Hsla, alpha: f32| {
4217 let mut faded = color;
4218 faded.a = alpha;
4219 faded
4220 };
4221
4222 for indent_guide in indent_guides {
4223 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4224 let settings = indent_guide.settings;
4225
4226 // TODO fixed for now, expose them through themes later
4227 const INDENT_AWARE_ALPHA: f32 = 0.2;
4228 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4229 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4230 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4231
4232 let line_color = match (settings.coloring, indent_guide.active) {
4233 (IndentGuideColoring::Disabled, _) => None,
4234 (IndentGuideColoring::Fixed, false) => {
4235 Some(cx.theme().colors().editor_indent_guide)
4236 }
4237 (IndentGuideColoring::Fixed, true) => {
4238 Some(cx.theme().colors().editor_indent_guide_active)
4239 }
4240 (IndentGuideColoring::IndentAware, false) => {
4241 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4242 }
4243 (IndentGuideColoring::IndentAware, true) => {
4244 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4245 }
4246 };
4247
4248 let background_color = match (settings.background_coloring, indent_guide.active) {
4249 (IndentGuideBackgroundColoring::Disabled, _) => None,
4250 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4251 indent_accent_colors,
4252 INDENT_AWARE_BACKGROUND_ALPHA,
4253 )),
4254 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4255 indent_accent_colors,
4256 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4257 )),
4258 };
4259
4260 let requested_line_width = if indent_guide.active {
4261 settings.active_line_width
4262 } else {
4263 settings.line_width
4264 }
4265 .clamp(1, 10);
4266 let mut line_indicator_width = 0.;
4267 if let Some(color) = line_color {
4268 window.paint_quad(fill(
4269 Bounds {
4270 origin: indent_guide.origin,
4271 size: size(px(requested_line_width as f32), indent_guide.length),
4272 },
4273 color,
4274 ));
4275 line_indicator_width = requested_line_width as f32;
4276 }
4277
4278 if let Some(color) = background_color {
4279 let width = indent_guide.single_indent_width - px(line_indicator_width);
4280 window.paint_quad(fill(
4281 Bounds {
4282 origin: point(
4283 indent_guide.origin.x + px(line_indicator_width),
4284 indent_guide.origin.y,
4285 ),
4286 size: size(width, indent_guide.length),
4287 },
4288 color,
4289 ));
4290 }
4291 }
4292 }
4293
4294 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4295 let is_singleton = self.editor.read(cx).is_singleton(cx);
4296
4297 let line_height = layout.position_map.line_height;
4298 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4299
4300 for LineNumberLayout {
4301 shaped_line,
4302 hitbox,
4303 display_row,
4304 } in layout.line_numbers.values()
4305 {
4306 let Some(hitbox) = hitbox else {
4307 continue;
4308 };
4309
4310 let is_active = layout.active_rows.contains_key(&display_row);
4311
4312 let color = if is_active {
4313 cx.theme().colors().editor_active_line_number
4314 } else if !is_singleton && hitbox.is_hovered(window) {
4315 cx.theme().colors().editor_hover_line_number
4316 } else {
4317 cx.theme().colors().editor_line_number
4318 };
4319
4320 let Some(line) = self
4321 .shape_line_number(shaped_line.text.clone(), color, window)
4322 .log_err()
4323 else {
4324 continue;
4325 };
4326 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4327 continue;
4328 };
4329 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4330 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4331 if is_singleton {
4332 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4333 } else {
4334 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4335 }
4336 }
4337 }
4338
4339 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4340 if layout.display_hunks.is_empty() {
4341 return;
4342 }
4343
4344 let line_height = layout.position_map.line_height;
4345 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4346 for (hunk, hitbox) in &layout.display_hunks {
4347 let hunk_to_paint = match hunk {
4348 DisplayDiffHunk::Folded { .. } => {
4349 let hunk_bounds = Self::diff_hunk_bounds(
4350 &layout.position_map.snapshot,
4351 line_height,
4352 layout.gutter_hitbox.bounds,
4353 hunk,
4354 );
4355 Some((
4356 hunk_bounds,
4357 cx.theme().colors().version_control_modified,
4358 Corners::all(px(0.)),
4359 DiffHunkSecondaryStatus::None,
4360 ))
4361 }
4362 DisplayDiffHunk::Unfolded {
4363 status,
4364 display_row_range,
4365 ..
4366 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4367 DiffHunkStatusKind::Added => (
4368 hunk_hitbox.bounds,
4369 cx.theme().colors().version_control_added,
4370 Corners::all(px(0.)),
4371 status.secondary,
4372 ),
4373 DiffHunkStatusKind::Modified => (
4374 hunk_hitbox.bounds,
4375 cx.theme().colors().version_control_modified,
4376 Corners::all(px(0.)),
4377 status.secondary,
4378 ),
4379 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4380 hunk_hitbox.bounds,
4381 cx.theme().colors().version_control_deleted,
4382 Corners::all(px(0.)),
4383 status.secondary,
4384 ),
4385 DiffHunkStatusKind::Deleted => (
4386 Bounds::new(
4387 point(
4388 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4389 hunk_hitbox.origin.y,
4390 ),
4391 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4392 ),
4393 cx.theme().colors().version_control_deleted,
4394 Corners::all(1. * line_height),
4395 status.secondary,
4396 ),
4397 }),
4398 };
4399
4400 if let Some((hunk_bounds, background_color, corner_radii, secondary_status)) =
4401 hunk_to_paint
4402 {
4403 let background_color = if secondary_status != DiffHunkSecondaryStatus::None {
4404 background_color.opacity(0.3)
4405 } else {
4406 background_color.opacity(1.0)
4407 };
4408 window.paint_quad(quad(
4409 hunk_bounds,
4410 corner_radii,
4411 background_color,
4412 Edges::default(),
4413 transparent_black(),
4414 ));
4415 }
4416 }
4417 });
4418 }
4419
4420 fn diff_hunk_bounds(
4421 snapshot: &EditorSnapshot,
4422 line_height: Pixels,
4423 gutter_bounds: Bounds<Pixels>,
4424 hunk: &DisplayDiffHunk,
4425 ) -> Bounds<Pixels> {
4426 let scroll_position = snapshot.scroll_position();
4427 let scroll_top = scroll_position.y * line_height;
4428 let gutter_strip_width = (0.275 * line_height).floor();
4429
4430 match hunk {
4431 DisplayDiffHunk::Folded { display_row, .. } => {
4432 let start_y = display_row.as_f32() * line_height - scroll_top;
4433 let end_y = start_y + line_height;
4434 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4435 let highlight_size = size(gutter_strip_width, end_y - start_y);
4436 Bounds::new(highlight_origin, highlight_size)
4437 }
4438 DisplayDiffHunk::Unfolded {
4439 display_row_range,
4440 status,
4441 ..
4442 } => {
4443 if status.is_deleted() && display_row_range.is_empty() {
4444 let row = display_row_range.start;
4445
4446 let offset = line_height / 2.;
4447 let start_y = row.as_f32() * line_height - offset - scroll_top;
4448 let end_y = start_y + line_height;
4449
4450 let width = (0.35 * line_height).floor();
4451 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4452 let highlight_size = size(width, end_y - start_y);
4453 Bounds::new(highlight_origin, highlight_size)
4454 } else {
4455 let start_row = display_row_range.start;
4456 let end_row = display_row_range.end;
4457 // If we're in a multibuffer, row range span might include an
4458 // excerpt header, so if we were to draw the marker straight away,
4459 // the hunk might include the rows of that header.
4460 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4461 // Instead, we simply check whether the range we're dealing with includes
4462 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4463 let end_row_in_current_excerpt = snapshot
4464 .blocks_in_range(start_row..end_row)
4465 .find_map(|(start_row, block)| {
4466 if matches!(block, Block::ExcerptBoundary { .. }) {
4467 Some(start_row)
4468 } else {
4469 None
4470 }
4471 })
4472 .unwrap_or(end_row);
4473
4474 let start_y = start_row.as_f32() * line_height - scroll_top;
4475 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4476
4477 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4478 let highlight_size = size(gutter_strip_width, end_y - start_y);
4479 Bounds::new(highlight_origin, highlight_size)
4480 }
4481 }
4482 }
4483 }
4484
4485 fn paint_gutter_indicators(
4486 &self,
4487 layout: &mut EditorLayout,
4488 window: &mut Window,
4489 cx: &mut App,
4490 ) {
4491 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4492 window.with_element_namespace("crease_toggles", |window| {
4493 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4494 crease_toggle.paint(window, cx);
4495 }
4496 });
4497
4498 for test_indicator in layout.test_indicators.iter_mut() {
4499 test_indicator.paint(window, cx);
4500 }
4501
4502 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4503 indicator.paint(window, cx);
4504 }
4505 });
4506 }
4507
4508 fn paint_gutter_highlights(
4509 &self,
4510 layout: &mut EditorLayout,
4511 window: &mut Window,
4512 cx: &mut App,
4513 ) {
4514 for (_, hunk_hitbox) in &layout.display_hunks {
4515 if let Some(hunk_hitbox) = hunk_hitbox {
4516 if !self
4517 .editor
4518 .read(cx)
4519 .buffer()
4520 .read(cx)
4521 .all_diff_hunks_expanded()
4522 {
4523 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4524 }
4525 }
4526 }
4527
4528 let show_git_gutter = layout
4529 .position_map
4530 .snapshot
4531 .show_git_diff_gutter
4532 .unwrap_or_else(|| {
4533 matches!(
4534 ProjectSettings::get_global(cx).git.git_gutter,
4535 Some(GitGutterSetting::TrackedFiles)
4536 )
4537 });
4538 if show_git_gutter {
4539 Self::paint_diff_hunks(layout, window, cx)
4540 }
4541
4542 let highlight_width = 0.275 * layout.position_map.line_height;
4543 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4544 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4545 for (range, color) in &layout.highlighted_gutter_ranges {
4546 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4547 layout.visible_display_row_range.start - DisplayRow(1)
4548 } else {
4549 range.start.row()
4550 };
4551 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4552 layout.visible_display_row_range.end + DisplayRow(1)
4553 } else {
4554 range.end.row()
4555 };
4556
4557 let start_y = layout.gutter_hitbox.top()
4558 + start_row.0 as f32 * layout.position_map.line_height
4559 - layout.position_map.scroll_pixel_position.y;
4560 let end_y = layout.gutter_hitbox.top()
4561 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4562 - layout.position_map.scroll_pixel_position.y;
4563 let bounds = Bounds::from_corners(
4564 point(layout.gutter_hitbox.left(), start_y),
4565 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4566 );
4567 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4568 }
4569 });
4570 }
4571
4572 fn paint_blamed_display_rows(
4573 &self,
4574 layout: &mut EditorLayout,
4575 window: &mut Window,
4576 cx: &mut App,
4577 ) {
4578 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4579 return;
4580 };
4581
4582 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4583 for mut blame_element in blamed_display_rows.into_iter() {
4584 blame_element.paint(window, cx);
4585 }
4586 })
4587 }
4588
4589 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4590 window.with_content_mask(
4591 Some(ContentMask {
4592 bounds: layout.position_map.text_hitbox.bounds,
4593 }),
4594 |window| {
4595 let cursor_style = if self
4596 .editor
4597 .read(cx)
4598 .hovered_link_state
4599 .as_ref()
4600 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4601 {
4602 CursorStyle::PointingHand
4603 } else {
4604 CursorStyle::IBeam
4605 };
4606 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4607
4608 let invisible_display_ranges = self.paint_highlights(layout, window);
4609 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4610 self.paint_redactions(layout, window);
4611 self.paint_cursors(layout, window, cx);
4612 self.paint_inline_diagnostics(layout, window, cx);
4613 self.paint_inline_blame(layout, window, cx);
4614 self.paint_diff_hunk_controls(layout, window, cx);
4615 window.with_element_namespace("crease_trailers", |window| {
4616 for trailer in layout.crease_trailers.iter_mut().flatten() {
4617 trailer.element.paint(window, cx);
4618 }
4619 });
4620 },
4621 )
4622 }
4623
4624 fn paint_highlights(
4625 &mut self,
4626 layout: &mut EditorLayout,
4627 window: &mut Window,
4628 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4629 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4630 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4631 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4632 for (range, color) in &layout.highlighted_ranges {
4633 self.paint_highlighted_range(
4634 range.clone(),
4635 *color,
4636 Pixels::ZERO,
4637 line_end_overshoot,
4638 layout,
4639 window,
4640 );
4641 }
4642
4643 let corner_radius = 0.15 * layout.position_map.line_height;
4644
4645 for (player_color, selections) in &layout.selections {
4646 for selection in selections.iter() {
4647 self.paint_highlighted_range(
4648 selection.range.clone(),
4649 player_color.selection,
4650 corner_radius,
4651 corner_radius * 2.,
4652 layout,
4653 window,
4654 );
4655
4656 if selection.is_local && !selection.range.is_empty() {
4657 invisible_display_ranges.push(selection.range.clone());
4658 }
4659 }
4660 }
4661 invisible_display_ranges
4662 })
4663 }
4664
4665 fn paint_lines(
4666 &mut self,
4667 invisible_display_ranges: &[Range<DisplayPoint>],
4668 layout: &mut EditorLayout,
4669 window: &mut Window,
4670 cx: &mut App,
4671 ) {
4672 let whitespace_setting = self
4673 .editor
4674 .read(cx)
4675 .buffer
4676 .read(cx)
4677 .settings_at(0, cx)
4678 .show_whitespaces;
4679
4680 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4681 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4682 line_with_invisibles.draw(
4683 layout,
4684 row,
4685 layout.content_origin,
4686 whitespace_setting,
4687 invisible_display_ranges,
4688 window,
4689 cx,
4690 )
4691 }
4692
4693 for line_element in &mut layout.line_elements {
4694 line_element.paint(window, cx);
4695 }
4696 }
4697
4698 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4699 if layout.redacted_ranges.is_empty() {
4700 return;
4701 }
4702
4703 let line_end_overshoot = layout.line_end_overshoot();
4704
4705 // A softer than perfect black
4706 let redaction_color = gpui::rgb(0x0e1111);
4707
4708 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4709 for range in layout.redacted_ranges.iter() {
4710 self.paint_highlighted_range(
4711 range.clone(),
4712 redaction_color.into(),
4713 Pixels::ZERO,
4714 line_end_overshoot,
4715 layout,
4716 window,
4717 );
4718 }
4719 });
4720 }
4721
4722 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4723 for cursor in &mut layout.visible_cursors {
4724 cursor.paint(layout.content_origin, window, cx);
4725 }
4726 }
4727
4728 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4729 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4730
4731 if let Some(scrollbar_layout) = scrollbar_x {
4732 let hitbox = scrollbar_layout.hitbox.clone();
4733 let text_unit_size = scrollbar_layout.text_unit_size;
4734 let visible_range = scrollbar_layout.visible_range.clone();
4735 let thumb_bounds = scrollbar_layout.thumb_bounds();
4736
4737 if scrollbar_layout.visible {
4738 window.paint_layer(hitbox.bounds, |window| {
4739 window.paint_quad(quad(
4740 hitbox.bounds,
4741 Corners::default(),
4742 cx.theme().colors().scrollbar_track_background,
4743 Edges {
4744 top: Pixels::ZERO,
4745 right: Pixels::ZERO,
4746 bottom: Pixels::ZERO,
4747 left: Pixels::ZERO,
4748 },
4749 cx.theme().colors().scrollbar_track_border,
4750 ));
4751
4752 window.paint_quad(quad(
4753 thumb_bounds,
4754 Corners::default(),
4755 cx.theme().colors().scrollbar_thumb_background,
4756 Edges {
4757 top: Pixels::ZERO,
4758 right: Pixels::ZERO,
4759 bottom: Pixels::ZERO,
4760 left: ScrollbarLayout::BORDER_WIDTH,
4761 },
4762 cx.theme().colors().scrollbar_thumb_border,
4763 ));
4764 })
4765 }
4766
4767 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4768
4769 window.on_mouse_event({
4770 let editor = self.editor.clone();
4771
4772 // there may be a way to avoid this clone
4773 let hitbox = hitbox.clone();
4774
4775 let mut mouse_position = window.mouse_position();
4776 move |event: &MouseMoveEvent, phase, window, cx| {
4777 if phase == DispatchPhase::Capture {
4778 return;
4779 }
4780
4781 editor.update(cx, |editor, cx| {
4782 if event.pressed_button == Some(MouseButton::Left)
4783 && editor
4784 .scroll_manager
4785 .is_dragging_scrollbar(Axis::Horizontal)
4786 {
4787 let x = mouse_position.x;
4788 let new_x = event.position.x;
4789 if (hitbox.left()..hitbox.right()).contains(&x) {
4790 let mut position = editor.scroll_position(cx);
4791
4792 position.x += (new_x - x) / text_unit_size;
4793 if position.x < 0.0 {
4794 position.x = 0.0;
4795 }
4796 editor.set_scroll_position(position, window, cx);
4797 }
4798
4799 cx.stop_propagation();
4800 } else {
4801 editor.scroll_manager.set_is_dragging_scrollbar(
4802 Axis::Horizontal,
4803 false,
4804 cx,
4805 );
4806
4807 if hitbox.is_hovered(window) {
4808 editor.scroll_manager.show_scrollbar(window, cx);
4809 }
4810 }
4811 mouse_position = event.position;
4812 })
4813 }
4814 });
4815
4816 if self
4817 .editor
4818 .read(cx)
4819 .scroll_manager
4820 .is_dragging_scrollbar(Axis::Horizontal)
4821 {
4822 window.on_mouse_event({
4823 let editor = self.editor.clone();
4824 move |_: &MouseUpEvent, phase, _, cx| {
4825 if phase == DispatchPhase::Capture {
4826 return;
4827 }
4828
4829 editor.update(cx, |editor, cx| {
4830 editor.scroll_manager.set_is_dragging_scrollbar(
4831 Axis::Horizontal,
4832 false,
4833 cx,
4834 );
4835 cx.stop_propagation();
4836 });
4837 }
4838 });
4839 } else {
4840 window.on_mouse_event({
4841 let editor = self.editor.clone();
4842
4843 move |event: &MouseDownEvent, phase, window, cx| {
4844 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4845 return;
4846 }
4847
4848 editor.update(cx, |editor, cx| {
4849 editor.scroll_manager.set_is_dragging_scrollbar(
4850 Axis::Horizontal,
4851 true,
4852 cx,
4853 );
4854
4855 let x = event.position.x;
4856
4857 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4858 let center_row =
4859 ((x - hitbox.left()) / text_unit_size).round() as u32;
4860 let top_row = center_row.saturating_sub(
4861 (visible_range.end - visible_range.start) as u32 / 2,
4862 );
4863
4864 let mut position = editor.scroll_position(cx);
4865 position.x = top_row as f32;
4866
4867 editor.set_scroll_position(position, window, cx);
4868 } else {
4869 editor.scroll_manager.show_scrollbar(window, cx);
4870 }
4871
4872 cx.stop_propagation();
4873 });
4874 }
4875 });
4876 }
4877 }
4878
4879 if let Some(scrollbar_layout) = scrollbar_y {
4880 let hitbox = scrollbar_layout.hitbox.clone();
4881 let text_unit_size = scrollbar_layout.text_unit_size;
4882 let visible_range = scrollbar_layout.visible_range.clone();
4883 let thumb_bounds = scrollbar_layout.thumb_bounds();
4884
4885 if scrollbar_layout.visible {
4886 window.paint_layer(hitbox.bounds, |window| {
4887 window.paint_quad(quad(
4888 hitbox.bounds,
4889 Corners::default(),
4890 cx.theme().colors().scrollbar_track_background,
4891 Edges {
4892 top: Pixels::ZERO,
4893 right: Pixels::ZERO,
4894 bottom: Pixels::ZERO,
4895 left: ScrollbarLayout::BORDER_WIDTH,
4896 },
4897 cx.theme().colors().scrollbar_track_border,
4898 ));
4899
4900 let fast_markers =
4901 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4902 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4903 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4904
4905 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4906 for marker in markers.iter().chain(&fast_markers) {
4907 let mut marker = marker.clone();
4908 marker.bounds.origin += hitbox.origin;
4909 window.paint_quad(marker);
4910 }
4911
4912 window.paint_quad(quad(
4913 thumb_bounds,
4914 Corners::default(),
4915 cx.theme().colors().scrollbar_thumb_background,
4916 Edges {
4917 top: Pixels::ZERO,
4918 right: Pixels::ZERO,
4919 bottom: Pixels::ZERO,
4920 left: ScrollbarLayout::BORDER_WIDTH,
4921 },
4922 cx.theme().colors().scrollbar_thumb_border,
4923 ));
4924 });
4925 }
4926
4927 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4928
4929 window.on_mouse_event({
4930 let editor = self.editor.clone();
4931
4932 let hitbox = hitbox.clone();
4933
4934 let mut mouse_position = window.mouse_position();
4935 move |event: &MouseMoveEvent, phase, window, cx| {
4936 if phase == DispatchPhase::Capture {
4937 return;
4938 }
4939
4940 editor.update(cx, |editor, cx| {
4941 if event.pressed_button == Some(MouseButton::Left)
4942 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4943 {
4944 let y = mouse_position.y;
4945 let new_y = event.position.y;
4946 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4947 let mut position = editor.scroll_position(cx);
4948 position.y += (new_y - y) / text_unit_size;
4949 if position.y < 0.0 {
4950 position.y = 0.0;
4951 }
4952 editor.set_scroll_position(position, window, cx);
4953 }
4954 } else {
4955 editor.scroll_manager.set_is_dragging_scrollbar(
4956 Axis::Vertical,
4957 false,
4958 cx,
4959 );
4960
4961 if hitbox.is_hovered(window) {
4962 editor.scroll_manager.show_scrollbar(window, cx);
4963 }
4964 }
4965 mouse_position = event.position;
4966 })
4967 }
4968 });
4969
4970 if self
4971 .editor
4972 .read(cx)
4973 .scroll_manager
4974 .is_dragging_scrollbar(Axis::Vertical)
4975 {
4976 window.on_mouse_event({
4977 let editor = self.editor.clone();
4978 move |_: &MouseUpEvent, phase, _, cx| {
4979 if phase == DispatchPhase::Capture {
4980 return;
4981 }
4982
4983 editor.update(cx, |editor, cx| {
4984 editor.scroll_manager.set_is_dragging_scrollbar(
4985 Axis::Vertical,
4986 false,
4987 cx,
4988 );
4989 cx.stop_propagation();
4990 });
4991 }
4992 });
4993 } else {
4994 window.on_mouse_event({
4995 let editor = self.editor.clone();
4996
4997 move |event: &MouseDownEvent, phase, window, cx| {
4998 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4999 return;
5000 }
5001
5002 editor.update(cx, |editor, cx| {
5003 editor.scroll_manager.set_is_dragging_scrollbar(
5004 Axis::Vertical,
5005 true,
5006 cx,
5007 );
5008
5009 let y = event.position.y;
5010 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5011 let center_row =
5012 ((y - hitbox.top()) / text_unit_size).round() as u32;
5013 let top_row = center_row.saturating_sub(
5014 (visible_range.end - visible_range.start) as u32 / 2,
5015 );
5016 let mut position = editor.scroll_position(cx);
5017 position.y = top_row as f32;
5018 editor.set_scroll_position(position, window, cx);
5019 } else {
5020 editor.scroll_manager.show_scrollbar(window, cx);
5021 }
5022
5023 cx.stop_propagation();
5024 });
5025 }
5026 });
5027 }
5028 }
5029 }
5030
5031 fn collect_fast_scrollbar_markers(
5032 &self,
5033 layout: &EditorLayout,
5034 scrollbar_layout: &ScrollbarLayout,
5035 cx: &mut App,
5036 ) -> Vec<PaintQuad> {
5037 const LIMIT: usize = 100;
5038 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5039 return vec![];
5040 }
5041 let cursor_ranges = layout
5042 .cursors
5043 .iter()
5044 .map(|(point, color)| ColoredRange {
5045 start: point.row(),
5046 end: point.row(),
5047 color: *color,
5048 })
5049 .collect_vec();
5050 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5051 }
5052
5053 fn refresh_slow_scrollbar_markers(
5054 &self,
5055 layout: &EditorLayout,
5056 scrollbar_layout: &ScrollbarLayout,
5057 window: &mut Window,
5058 cx: &mut App,
5059 ) {
5060 self.editor.update(cx, |editor, cx| {
5061 if !editor.is_singleton(cx)
5062 || !editor
5063 .scrollbar_marker_state
5064 .should_refresh(scrollbar_layout.hitbox.size)
5065 {
5066 return;
5067 }
5068
5069 let scrollbar_layout = scrollbar_layout.clone();
5070 let background_highlights = editor.background_highlights.clone();
5071 let snapshot = layout.position_map.snapshot.clone();
5072 let theme = cx.theme().clone();
5073 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5074
5075 editor.scrollbar_marker_state.dirty = false;
5076 editor.scrollbar_marker_state.pending_refresh =
5077 Some(cx.spawn_in(window, |editor, mut cx| async move {
5078 let scrollbar_size = scrollbar_layout.hitbox.size;
5079 let scrollbar_markers = cx
5080 .background_spawn(async move {
5081 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5082 let mut marker_quads = Vec::new();
5083 if scrollbar_settings.git_diff {
5084 let marker_row_ranges =
5085 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5086 let start_display_row =
5087 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5088 .to_display_point(&snapshot.display_snapshot)
5089 .row();
5090 let mut end_display_row =
5091 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5092 .to_display_point(&snapshot.display_snapshot)
5093 .row();
5094 if end_display_row != start_display_row {
5095 end_display_row.0 -= 1;
5096 }
5097 let color = match &hunk.status().kind {
5098 DiffHunkStatusKind::Added => theme.status().created,
5099 DiffHunkStatusKind::Modified => theme.status().modified,
5100 DiffHunkStatusKind::Deleted => theme.status().deleted,
5101 };
5102 ColoredRange {
5103 start: start_display_row,
5104 end: end_display_row,
5105 color,
5106 }
5107 });
5108
5109 marker_quads.extend(
5110 scrollbar_layout
5111 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5112 );
5113 }
5114
5115 for (background_highlight_id, (_, background_ranges)) in
5116 background_highlights.iter()
5117 {
5118 let is_search_highlights = *background_highlight_id
5119 == TypeId::of::<BufferSearchHighlights>();
5120 let is_text_highlights = *background_highlight_id
5121 == TypeId::of::<SelectedTextHighlight>();
5122 let is_symbol_occurrences = *background_highlight_id
5123 == TypeId::of::<DocumentHighlightRead>()
5124 || *background_highlight_id
5125 == TypeId::of::<DocumentHighlightWrite>();
5126 if (is_search_highlights && scrollbar_settings.search_results)
5127 || (is_text_highlights && scrollbar_settings.selected_text)
5128 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5129 {
5130 let mut color = theme.status().info;
5131 if is_symbol_occurrences {
5132 color.fade_out(0.5);
5133 }
5134 let marker_row_ranges = background_ranges.iter().map(|range| {
5135 let display_start = range
5136 .start
5137 .to_display_point(&snapshot.display_snapshot);
5138 let display_end =
5139 range.end.to_display_point(&snapshot.display_snapshot);
5140 ColoredRange {
5141 start: display_start.row(),
5142 end: display_end.row(),
5143 color,
5144 }
5145 });
5146 marker_quads.extend(
5147 scrollbar_layout
5148 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5149 );
5150 }
5151 }
5152
5153 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5154 let diagnostics = snapshot
5155 .buffer_snapshot
5156 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5157 // Don't show diagnostics the user doesn't care about
5158 .filter(|diagnostic| {
5159 match (
5160 scrollbar_settings.diagnostics,
5161 diagnostic.diagnostic.severity,
5162 ) {
5163 (ScrollbarDiagnostics::All, _) => true,
5164 (
5165 ScrollbarDiagnostics::Error,
5166 DiagnosticSeverity::ERROR,
5167 ) => true,
5168 (
5169 ScrollbarDiagnostics::Warning,
5170 DiagnosticSeverity::ERROR
5171 | DiagnosticSeverity::WARNING,
5172 ) => true,
5173 (
5174 ScrollbarDiagnostics::Information,
5175 DiagnosticSeverity::ERROR
5176 | DiagnosticSeverity::WARNING
5177 | DiagnosticSeverity::INFORMATION,
5178 ) => true,
5179 (_, _) => false,
5180 }
5181 })
5182 // We want to sort by severity, in order to paint the most severe diagnostics last.
5183 .sorted_by_key(|diagnostic| {
5184 std::cmp::Reverse(diagnostic.diagnostic.severity)
5185 });
5186
5187 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5188 let start_display = diagnostic
5189 .range
5190 .start
5191 .to_display_point(&snapshot.display_snapshot);
5192 let end_display = diagnostic
5193 .range
5194 .end
5195 .to_display_point(&snapshot.display_snapshot);
5196 let color = match diagnostic.diagnostic.severity {
5197 DiagnosticSeverity::ERROR => theme.status().error,
5198 DiagnosticSeverity::WARNING => theme.status().warning,
5199 DiagnosticSeverity::INFORMATION => theme.status().info,
5200 _ => theme.status().hint,
5201 };
5202 ColoredRange {
5203 start: start_display.row(),
5204 end: end_display.row(),
5205 color,
5206 }
5207 });
5208 marker_quads.extend(
5209 scrollbar_layout
5210 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5211 );
5212 }
5213
5214 Arc::from(marker_quads)
5215 })
5216 .await;
5217
5218 editor.update(&mut cx, |editor, cx| {
5219 editor.scrollbar_marker_state.markers = scrollbar_markers;
5220 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5221 editor.scrollbar_marker_state.pending_refresh = None;
5222 cx.notify();
5223 })?;
5224
5225 Ok(())
5226 }));
5227 });
5228 }
5229
5230 #[allow(clippy::too_many_arguments)]
5231 fn paint_highlighted_range(
5232 &self,
5233 range: Range<DisplayPoint>,
5234 color: Hsla,
5235 corner_radius: Pixels,
5236 line_end_overshoot: Pixels,
5237 layout: &EditorLayout,
5238 window: &mut Window,
5239 ) {
5240 let start_row = layout.visible_display_row_range.start;
5241 let end_row = layout.visible_display_row_range.end;
5242 if range.start != range.end {
5243 let row_range = if range.end.column() == 0 {
5244 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5245 } else {
5246 cmp::max(range.start.row(), start_row)
5247 ..cmp::min(range.end.row().next_row(), end_row)
5248 };
5249
5250 let highlighted_range = HighlightedRange {
5251 color,
5252 line_height: layout.position_map.line_height,
5253 corner_radius,
5254 start_y: layout.content_origin.y
5255 + row_range.start.as_f32() * layout.position_map.line_height
5256 - layout.position_map.scroll_pixel_position.y,
5257 lines: row_range
5258 .iter_rows()
5259 .map(|row| {
5260 let line_layout =
5261 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5262 HighlightedRangeLine {
5263 start_x: if row == range.start.row() {
5264 layout.content_origin.x
5265 + line_layout.x_for_index(range.start.column() as usize)
5266 - layout.position_map.scroll_pixel_position.x
5267 } else {
5268 layout.content_origin.x
5269 - layout.position_map.scroll_pixel_position.x
5270 },
5271 end_x: if row == range.end.row() {
5272 layout.content_origin.x
5273 + line_layout.x_for_index(range.end.column() as usize)
5274 - layout.position_map.scroll_pixel_position.x
5275 } else {
5276 layout.content_origin.x + line_layout.width + line_end_overshoot
5277 - layout.position_map.scroll_pixel_position.x
5278 },
5279 }
5280 })
5281 .collect(),
5282 };
5283
5284 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5285 }
5286 }
5287
5288 fn paint_inline_diagnostics(
5289 &mut self,
5290 layout: &mut EditorLayout,
5291 window: &mut Window,
5292 cx: &mut App,
5293 ) {
5294 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5295 inline_diagnostic.1.paint(window, cx);
5296 }
5297 }
5298
5299 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5300 if let Some(mut inline_blame) = layout.inline_blame.take() {
5301 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5302 inline_blame.paint(window, cx);
5303 })
5304 }
5305 }
5306
5307 fn paint_diff_hunk_controls(
5308 &mut self,
5309 layout: &mut EditorLayout,
5310 window: &mut Window,
5311 cx: &mut App,
5312 ) {
5313 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5314 diff_hunk_control.paint(window, cx);
5315 }
5316 }
5317
5318 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5319 for mut block in layout.blocks.drain(..) {
5320 block.element.paint(window, cx);
5321 }
5322 }
5323
5324 fn paint_inline_completion_popover(
5325 &mut self,
5326 layout: &mut EditorLayout,
5327 window: &mut Window,
5328 cx: &mut App,
5329 ) {
5330 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5331 inline_completion_popover.paint(window, cx);
5332 }
5333 }
5334
5335 fn paint_mouse_context_menu(
5336 &mut self,
5337 layout: &mut EditorLayout,
5338 window: &mut Window,
5339 cx: &mut App,
5340 ) {
5341 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5342 mouse_context_menu.paint(window, cx);
5343 }
5344 }
5345
5346 fn paint_scroll_wheel_listener(
5347 &mut self,
5348 layout: &EditorLayout,
5349 window: &mut Window,
5350 cx: &mut App,
5351 ) {
5352 window.on_mouse_event({
5353 let position_map = layout.position_map.clone();
5354 let editor = self.editor.clone();
5355 let hitbox = layout.hitbox.clone();
5356 let mut delta = ScrollDelta::default();
5357
5358 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5359 // accidentally turn off their scrolling.
5360 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5361
5362 move |event: &ScrollWheelEvent, phase, window, cx| {
5363 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5364 delta = delta.coalesce(event.delta);
5365 editor.update(cx, |editor, cx| {
5366 let position_map: &PositionMap = &position_map;
5367
5368 let line_height = position_map.line_height;
5369 let max_glyph_width = position_map.em_width;
5370 let (delta, axis) = match delta {
5371 gpui::ScrollDelta::Pixels(mut pixels) => {
5372 //Trackpad
5373 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5374 (pixels, axis)
5375 }
5376
5377 gpui::ScrollDelta::Lines(lines) => {
5378 //Not trackpad
5379 let pixels =
5380 point(lines.x * max_glyph_width, lines.y * line_height);
5381 (pixels, None)
5382 }
5383 };
5384
5385 let current_scroll_position = position_map.snapshot.scroll_position();
5386 let x = (current_scroll_position.x * max_glyph_width
5387 - (delta.x * scroll_sensitivity))
5388 / max_glyph_width;
5389 let y = (current_scroll_position.y * line_height
5390 - (delta.y * scroll_sensitivity))
5391 / line_height;
5392 let mut scroll_position =
5393 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5394 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5395 if forbid_vertical_scroll {
5396 scroll_position.y = current_scroll_position.y;
5397 }
5398
5399 if scroll_position != current_scroll_position {
5400 editor.scroll(scroll_position, axis, window, cx);
5401 cx.stop_propagation();
5402 } else if y < 0. {
5403 // Due to clamping, we may fail to detect cases of overscroll to the top;
5404 // We want the scroll manager to get an update in such cases and detect the change of direction
5405 // on the next frame.
5406 cx.notify();
5407 }
5408 });
5409 }
5410 }
5411 });
5412 }
5413
5414 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5415 self.paint_scroll_wheel_listener(layout, window, cx);
5416
5417 window.on_mouse_event({
5418 let position_map = layout.position_map.clone();
5419 let editor = self.editor.clone();
5420 let diff_hunk_range =
5421 layout
5422 .display_hunks
5423 .iter()
5424 .find_map(|(hunk, hunk_hitbox)| match hunk {
5425 DisplayDiffHunk::Folded { .. } => None,
5426 DisplayDiffHunk::Unfolded {
5427 multi_buffer_range, ..
5428 } => {
5429 if hunk_hitbox
5430 .as_ref()
5431 .map(|hitbox| hitbox.is_hovered(window))
5432 .unwrap_or(false)
5433 {
5434 Some(multi_buffer_range.clone())
5435 } else {
5436 None
5437 }
5438 }
5439 });
5440 let line_numbers = layout.line_numbers.clone();
5441
5442 move |event: &MouseDownEvent, phase, window, cx| {
5443 if phase == DispatchPhase::Bubble {
5444 match event.button {
5445 MouseButton::Left => editor.update(cx, |editor, cx| {
5446 let pending_mouse_down = editor
5447 .pending_mouse_down
5448 .get_or_insert_with(Default::default)
5449 .clone();
5450
5451 *pending_mouse_down.borrow_mut() = Some(event.clone());
5452
5453 Self::mouse_left_down(
5454 editor,
5455 event,
5456 diff_hunk_range.clone(),
5457 &position_map,
5458 line_numbers.as_ref(),
5459 window,
5460 cx,
5461 );
5462 }),
5463 MouseButton::Right => editor.update(cx, |editor, cx| {
5464 Self::mouse_right_down(editor, event, &position_map, window, cx);
5465 }),
5466 MouseButton::Middle => editor.update(cx, |editor, cx| {
5467 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5468 }),
5469 _ => {}
5470 };
5471 }
5472 }
5473 });
5474
5475 window.on_mouse_event({
5476 let editor = self.editor.clone();
5477 let position_map = layout.position_map.clone();
5478
5479 move |event: &MouseUpEvent, phase, window, cx| {
5480 if phase == DispatchPhase::Bubble {
5481 editor.update(cx, |editor, cx| {
5482 Self::mouse_up(editor, event, &position_map, window, cx)
5483 });
5484 }
5485 }
5486 });
5487
5488 window.on_mouse_event({
5489 let editor = self.editor.clone();
5490 let position_map = layout.position_map.clone();
5491 let mut captured_mouse_down = None;
5492
5493 move |event: &MouseUpEvent, phase, window, cx| match phase {
5494 // Clear the pending mouse down during the capture phase,
5495 // so that it happens even if another event handler stops
5496 // propagation.
5497 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5498 let pending_mouse_down = editor
5499 .pending_mouse_down
5500 .get_or_insert_with(Default::default)
5501 .clone();
5502
5503 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5504 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5505 captured_mouse_down = pending_mouse_down.take();
5506 window.refresh();
5507 }
5508 }),
5509 // Fire click handlers during the bubble phase.
5510 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5511 if let Some(mouse_down) = captured_mouse_down.take() {
5512 let event = ClickEvent {
5513 down: mouse_down,
5514 up: event.clone(),
5515 };
5516 Self::click(editor, &event, &position_map, window, cx);
5517 }
5518 }),
5519 }
5520 });
5521
5522 window.on_mouse_event({
5523 let position_map = layout.position_map.clone();
5524 let editor = self.editor.clone();
5525
5526 move |event: &MouseMoveEvent, phase, window, cx| {
5527 if phase == DispatchPhase::Bubble {
5528 editor.update(cx, |editor, cx| {
5529 if editor.hover_state.focused(window, cx) {
5530 return;
5531 }
5532 if event.pressed_button == Some(MouseButton::Left)
5533 || event.pressed_button == Some(MouseButton::Middle)
5534 {
5535 Self::mouse_dragged(editor, event, &position_map, window, cx)
5536 }
5537
5538 Self::mouse_moved(editor, event, &position_map, window, cx)
5539 });
5540 }
5541 }
5542 });
5543 }
5544
5545 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5546 bounds.top_right().x - self.style.scrollbar_width
5547 }
5548
5549 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5550 let style = &self.style;
5551 let font_size = style.text.font_size.to_pixels(window.rem_size());
5552 let layout = window
5553 .text_system()
5554 .shape_line(
5555 SharedString::from(" ".repeat(column)),
5556 font_size,
5557 &[TextRun {
5558 len: column,
5559 font: style.text.font(),
5560 color: Hsla::default(),
5561 background_color: None,
5562 underline: None,
5563 strikethrough: None,
5564 }],
5565 )
5566 .unwrap();
5567
5568 layout.width
5569 }
5570
5571 fn max_line_number_width(
5572 &self,
5573 snapshot: &EditorSnapshot,
5574 window: &mut Window,
5575 cx: &mut App,
5576 ) -> Pixels {
5577 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5578 self.column_pixels(digit_count, window, cx)
5579 }
5580
5581 fn shape_line_number(
5582 &self,
5583 text: SharedString,
5584 color: Hsla,
5585 window: &mut Window,
5586 ) -> anyhow::Result<ShapedLine> {
5587 let run = TextRun {
5588 len: text.len(),
5589 font: self.style.text.font(),
5590 color,
5591 background_color: None,
5592 underline: None,
5593 strikethrough: None,
5594 };
5595 window.text_system().shape_line(
5596 text,
5597 self.style.text.font_size.to_pixels(window.rem_size()),
5598 &[run],
5599 )
5600 }
5601}
5602
5603fn header_jump_data(
5604 snapshot: &EditorSnapshot,
5605 block_row_start: DisplayRow,
5606 height: u32,
5607 for_excerpt: &ExcerptInfo,
5608) -> JumpData {
5609 let range = &for_excerpt.range;
5610 let buffer = &for_excerpt.buffer;
5611 let jump_anchor = range
5612 .primary
5613 .as_ref()
5614 .map_or(range.context.start, |primary| primary.start);
5615
5616 let excerpt_start = range.context.start;
5617 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5618 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5619 0
5620 } else {
5621 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5622 jump_position.row.saturating_sub(excerpt_start_point.row)
5623 };
5624
5625 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5626 .saturating_sub(
5627 snapshot
5628 .scroll_anchor
5629 .scroll_position(&snapshot.display_snapshot)
5630 .y as u32,
5631 );
5632
5633 JumpData::MultiBufferPoint {
5634 excerpt_id: for_excerpt.id,
5635 anchor: jump_anchor,
5636 position: jump_position,
5637 line_offset_from_top,
5638 }
5639}
5640
5641pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5642
5643impl AcceptEditPredictionBinding {
5644 pub fn keystroke(&self) -> Option<&Keystroke> {
5645 if let Some(binding) = self.0.as_ref() {
5646 match &binding.keystrokes() {
5647 [keystroke] => Some(keystroke),
5648 _ => None,
5649 }
5650 } else {
5651 None
5652 }
5653 }
5654}
5655
5656#[allow(clippy::too_many_arguments)]
5657fn prepaint_gutter_button(
5658 button: IconButton,
5659 row: DisplayRow,
5660 line_height: Pixels,
5661 gutter_dimensions: &GutterDimensions,
5662 scroll_pixel_position: gpui::Point<Pixels>,
5663 gutter_hitbox: &Hitbox,
5664 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5665 window: &mut Window,
5666 cx: &mut App,
5667) -> AnyElement {
5668 let mut button = button.into_any_element();
5669 let available_space = size(
5670 AvailableSpace::MinContent,
5671 AvailableSpace::Definite(line_height),
5672 );
5673 let indicator_size = button.layout_as_root(available_space, window, cx);
5674
5675 let blame_width = gutter_dimensions.git_blame_entries_width;
5676 let gutter_width = rows_with_hunk_bounds
5677 .get(&row)
5678 .map(|bounds| bounds.size.width);
5679 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5680
5681 let mut x = left_offset;
5682 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5683 - indicator_size.width
5684 - left_offset;
5685 x += available_width / 2.;
5686
5687 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5688 y += (line_height - indicator_size.height) / 2.;
5689
5690 button.prepaint_as_root(
5691 gutter_hitbox.origin + point(x, y),
5692 available_space,
5693 window,
5694 cx,
5695 );
5696 button
5697}
5698
5699fn render_inline_blame_entry(
5700 editor: Entity<Editor>,
5701 blame: &gpui::Entity<GitBlame>,
5702 blame_entry: BlameEntry,
5703 style: &EditorStyle,
5704 cx: &mut App,
5705) -> AnyElement {
5706 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5707
5708 let author = blame_entry.author.as_deref().unwrap_or_default();
5709 let summary_enabled = ProjectSettings::get_global(cx)
5710 .git
5711 .show_inline_commit_summary();
5712
5713 let text = match blame_entry.summary.as_ref() {
5714 Some(summary) if summary_enabled => {
5715 format!("{}, {} - {}", author, relative_timestamp, summary)
5716 }
5717 _ => format!("{}, {}", author, relative_timestamp),
5718 };
5719 let blame = blame.clone();
5720 let blame_entry = blame_entry.clone();
5721
5722 h_flex()
5723 .id("inline-blame")
5724 .w_full()
5725 .font_family(style.text.font().family)
5726 .text_color(cx.theme().status().hint)
5727 .line_height(style.text.line_height)
5728 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5729 .child(text)
5730 .gap_2()
5731 .hoverable_tooltip(move |window, cx| {
5732 let details = blame.read(cx).details_for_entry(&blame_entry);
5733 let tooltip =
5734 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5735 editor.update(cx, |editor, _| {
5736 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5737 });
5738 tooltip.into()
5739 })
5740 .into_any()
5741}
5742
5743fn render_blame_entry(
5744 ix: usize,
5745 blame: &gpui::Entity<GitBlame>,
5746 blame_entry: BlameEntry,
5747 style: &EditorStyle,
5748 last_used_color: &mut Option<(PlayerColor, Oid)>,
5749 editor: Entity<Editor>,
5750 cx: &mut App,
5751) -> AnyElement {
5752 let mut sha_color = cx
5753 .theme()
5754 .players()
5755 .color_for_participant(blame_entry.sha.into());
5756 // If the last color we used is the same as the one we get for this line, but
5757 // the commit SHAs are different, then we try again to get a different color.
5758 match *last_used_color {
5759 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5760 let index: u32 = blame_entry.sha.into();
5761 sha_color = cx.theme().players().color_for_participant(index + 1);
5762 }
5763 _ => {}
5764 };
5765 last_used_color.replace((sha_color, blame_entry.sha));
5766
5767 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5768
5769 let short_commit_id = blame_entry.sha.display_short();
5770
5771 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5772 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5773 let details = blame.read(cx).details_for_entry(&blame_entry);
5774
5775 h_flex()
5776 .w_full()
5777 .justify_between()
5778 .font_family(style.text.font().family)
5779 .line_height(style.text.line_height)
5780 .id(("blame", ix))
5781 .text_color(cx.theme().status().hint)
5782 .pr_2()
5783 .gap_2()
5784 .child(
5785 h_flex()
5786 .items_center()
5787 .gap_2()
5788 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5789 .child(name),
5790 )
5791 .child(relative_timestamp)
5792 .on_mouse_down(MouseButton::Right, {
5793 let blame_entry = blame_entry.clone();
5794 let details = details.clone();
5795 move |event, window, cx| {
5796 deploy_blame_entry_context_menu(
5797 &blame_entry,
5798 details.as_ref(),
5799 editor.clone(),
5800 event.position,
5801 window,
5802 cx,
5803 );
5804 }
5805 })
5806 .hover(|style| style.bg(cx.theme().colors().element_hover))
5807 .when_some(
5808 details
5809 .as_ref()
5810 .and_then(|details| details.permalink.clone()),
5811 |this, url| {
5812 this.cursor_pointer().on_click(move |_, _, cx| {
5813 cx.stop_propagation();
5814 cx.open_url(url.as_str())
5815 })
5816 },
5817 )
5818 .hoverable_tooltip(move |window, cx| {
5819 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5820 .into()
5821 })
5822 .into_any()
5823}
5824
5825fn deploy_blame_entry_context_menu(
5826 blame_entry: &BlameEntry,
5827 details: Option<&ParsedCommitMessage>,
5828 editor: Entity<Editor>,
5829 position: gpui::Point<Pixels>,
5830 window: &mut Window,
5831 cx: &mut App,
5832) {
5833 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5834 let sha = format!("{}", blame_entry.sha);
5835 menu.on_blur_subscription(Subscription::new(|| {}))
5836 .entry("Copy commit SHA", None, move |_, cx| {
5837 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5838 })
5839 .when_some(
5840 details.and_then(|details| details.permalink.clone()),
5841 |this, url| {
5842 this.entry("Open permalink", None, move |_, cx| {
5843 cx.open_url(url.as_str())
5844 })
5845 },
5846 )
5847 });
5848
5849 editor.update(cx, move |editor, cx| {
5850 editor.mouse_context_menu = Some(MouseContextMenu::new(
5851 MenuPosition::PinnedToScreen(position),
5852 context_menu,
5853 window,
5854 cx,
5855 ));
5856 cx.notify();
5857 });
5858}
5859
5860#[derive(Debug)]
5861pub(crate) struct LineWithInvisibles {
5862 fragments: SmallVec<[LineFragment; 1]>,
5863 invisibles: Vec<Invisible>,
5864 len: usize,
5865 pub(crate) width: Pixels,
5866 font_size: Pixels,
5867}
5868
5869#[allow(clippy::large_enum_variant)]
5870enum LineFragment {
5871 Text(ShapedLine),
5872 Element {
5873 element: Option<AnyElement>,
5874 size: Size<Pixels>,
5875 len: usize,
5876 },
5877}
5878
5879impl fmt::Debug for LineFragment {
5880 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5881 match self {
5882 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5883 LineFragment::Element { size, len, .. } => f
5884 .debug_struct("Element")
5885 .field("size", size)
5886 .field("len", len)
5887 .finish(),
5888 }
5889 }
5890}
5891
5892impl LineWithInvisibles {
5893 #[allow(clippy::too_many_arguments)]
5894 fn from_chunks<'a>(
5895 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5896 editor_style: &EditorStyle,
5897 max_line_len: usize,
5898 max_line_count: usize,
5899 editor_mode: EditorMode,
5900 text_width: Pixels,
5901 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5902 window: &mut Window,
5903 cx: &mut App,
5904 ) -> Vec<Self> {
5905 let text_style = &editor_style.text;
5906 let mut layouts = Vec::with_capacity(max_line_count);
5907 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5908 let mut line = String::new();
5909 let mut invisibles = Vec::new();
5910 let mut width = Pixels::ZERO;
5911 let mut len = 0;
5912 let mut styles = Vec::new();
5913 let mut non_whitespace_added = false;
5914 let mut row = 0;
5915 let mut line_exceeded_max_len = false;
5916 let font_size = text_style.font_size.to_pixels(window.rem_size());
5917
5918 let ellipsis = SharedString::from("⋯");
5919
5920 for highlighted_chunk in chunks.chain([HighlightedChunk {
5921 text: "\n",
5922 style: None,
5923 is_tab: false,
5924 replacement: None,
5925 }]) {
5926 if let Some(replacement) = highlighted_chunk.replacement {
5927 if !line.is_empty() {
5928 let shaped_line = window
5929 .text_system()
5930 .shape_line(line.clone().into(), font_size, &styles)
5931 .unwrap();
5932 width += shaped_line.width;
5933 len += shaped_line.len;
5934 fragments.push(LineFragment::Text(shaped_line));
5935 line.clear();
5936 styles.clear();
5937 }
5938
5939 match replacement {
5940 ChunkReplacement::Renderer(renderer) => {
5941 let available_width = if renderer.constrain_width {
5942 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5943 ellipsis.clone()
5944 } else {
5945 SharedString::from(Arc::from(highlighted_chunk.text))
5946 };
5947 let shaped_line = window
5948 .text_system()
5949 .shape_line(
5950 chunk,
5951 font_size,
5952 &[text_style.to_run(highlighted_chunk.text.len())],
5953 )
5954 .unwrap();
5955 AvailableSpace::Definite(shaped_line.width)
5956 } else {
5957 AvailableSpace::MinContent
5958 };
5959
5960 let mut element = (renderer.render)(&mut ChunkRendererContext {
5961 context: cx,
5962 window,
5963 max_width: text_width,
5964 });
5965 let line_height = text_style.line_height_in_pixels(window.rem_size());
5966 let size = element.layout_as_root(
5967 size(available_width, AvailableSpace::Definite(line_height)),
5968 window,
5969 cx,
5970 );
5971
5972 width += size.width;
5973 len += highlighted_chunk.text.len();
5974 fragments.push(LineFragment::Element {
5975 element: Some(element),
5976 size,
5977 len: highlighted_chunk.text.len(),
5978 });
5979 }
5980 ChunkReplacement::Str(x) => {
5981 let text_style = if let Some(style) = highlighted_chunk.style {
5982 Cow::Owned(text_style.clone().highlight(style))
5983 } else {
5984 Cow::Borrowed(text_style)
5985 };
5986
5987 let run = TextRun {
5988 len: x.len(),
5989 font: text_style.font(),
5990 color: text_style.color,
5991 background_color: text_style.background_color,
5992 underline: text_style.underline,
5993 strikethrough: text_style.strikethrough,
5994 };
5995 let line_layout = window
5996 .text_system()
5997 .shape_line(x, font_size, &[run])
5998 .unwrap()
5999 .with_len(highlighted_chunk.text.len());
6000
6001 width += line_layout.width;
6002 len += highlighted_chunk.text.len();
6003 fragments.push(LineFragment::Text(line_layout))
6004 }
6005 }
6006 } else {
6007 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6008 if ix > 0 {
6009 let shaped_line = window
6010 .text_system()
6011 .shape_line(line.clone().into(), font_size, &styles)
6012 .unwrap();
6013 width += shaped_line.width;
6014 len += shaped_line.len;
6015 fragments.push(LineFragment::Text(shaped_line));
6016 layouts.push(Self {
6017 width: mem::take(&mut width),
6018 len: mem::take(&mut len),
6019 fragments: mem::take(&mut fragments),
6020 invisibles: std::mem::take(&mut invisibles),
6021 font_size,
6022 });
6023
6024 line.clear();
6025 styles.clear();
6026 row += 1;
6027 line_exceeded_max_len = false;
6028 non_whitespace_added = false;
6029 if row == max_line_count {
6030 return layouts;
6031 }
6032 }
6033
6034 if !line_chunk.is_empty() && !line_exceeded_max_len {
6035 let text_style = if let Some(style) = highlighted_chunk.style {
6036 Cow::Owned(text_style.clone().highlight(style))
6037 } else {
6038 Cow::Borrowed(text_style)
6039 };
6040
6041 if line.len() + line_chunk.len() > max_line_len {
6042 let mut chunk_len = max_line_len - line.len();
6043 while !line_chunk.is_char_boundary(chunk_len) {
6044 chunk_len -= 1;
6045 }
6046 line_chunk = &line_chunk[..chunk_len];
6047 line_exceeded_max_len = true;
6048 }
6049
6050 styles.push(TextRun {
6051 len: line_chunk.len(),
6052 font: text_style.font(),
6053 color: text_style.color,
6054 background_color: text_style.background_color,
6055 underline: text_style.underline,
6056 strikethrough: text_style.strikethrough,
6057 });
6058
6059 if editor_mode == EditorMode::Full {
6060 // Line wrap pads its contents with fake whitespaces,
6061 // avoid printing them
6062 let is_soft_wrapped = is_row_soft_wrapped(row);
6063 if highlighted_chunk.is_tab {
6064 if non_whitespace_added || !is_soft_wrapped {
6065 invisibles.push(Invisible::Tab {
6066 line_start_offset: line.len(),
6067 line_end_offset: line.len() + line_chunk.len(),
6068 });
6069 }
6070 } else {
6071 invisibles.extend(line_chunk.char_indices().filter_map(
6072 |(index, c)| {
6073 let is_whitespace = c.is_whitespace();
6074 non_whitespace_added |= !is_whitespace;
6075 if is_whitespace
6076 && (non_whitespace_added || !is_soft_wrapped)
6077 {
6078 Some(Invisible::Whitespace {
6079 line_offset: line.len() + index,
6080 })
6081 } else {
6082 None
6083 }
6084 },
6085 ))
6086 }
6087 }
6088
6089 line.push_str(line_chunk);
6090 }
6091 }
6092 }
6093 }
6094
6095 layouts
6096 }
6097
6098 #[allow(clippy::too_many_arguments)]
6099 fn prepaint(
6100 &mut self,
6101 line_height: Pixels,
6102 scroll_pixel_position: gpui::Point<Pixels>,
6103 row: DisplayRow,
6104 content_origin: gpui::Point<Pixels>,
6105 line_elements: &mut SmallVec<[AnyElement; 1]>,
6106 window: &mut Window,
6107 cx: &mut App,
6108 ) {
6109 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6110 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6111 for fragment in &mut self.fragments {
6112 match fragment {
6113 LineFragment::Text(line) => {
6114 fragment_origin.x += line.width;
6115 }
6116 LineFragment::Element { element, size, .. } => {
6117 let mut element = element
6118 .take()
6119 .expect("you can't prepaint LineWithInvisibles twice");
6120
6121 // Center the element vertically within the line.
6122 let mut element_origin = fragment_origin;
6123 element_origin.y += (line_height - size.height) / 2.;
6124 element.prepaint_at(element_origin, window, cx);
6125 line_elements.push(element);
6126
6127 fragment_origin.x += size.width;
6128 }
6129 }
6130 }
6131 }
6132
6133 #[allow(clippy::too_many_arguments)]
6134 fn draw(
6135 &self,
6136 layout: &EditorLayout,
6137 row: DisplayRow,
6138 content_origin: gpui::Point<Pixels>,
6139 whitespace_setting: ShowWhitespaceSetting,
6140 selection_ranges: &[Range<DisplayPoint>],
6141 window: &mut Window,
6142 cx: &mut App,
6143 ) {
6144 let line_height = layout.position_map.line_height;
6145 let line_y = line_height
6146 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6147
6148 let mut fragment_origin =
6149 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6150
6151 for fragment in &self.fragments {
6152 match fragment {
6153 LineFragment::Text(line) => {
6154 line.paint(fragment_origin, line_height, window, cx)
6155 .log_err();
6156 fragment_origin.x += line.width;
6157 }
6158 LineFragment::Element { size, .. } => {
6159 fragment_origin.x += size.width;
6160 }
6161 }
6162 }
6163
6164 self.draw_invisibles(
6165 selection_ranges,
6166 layout,
6167 content_origin,
6168 line_y,
6169 row,
6170 line_height,
6171 whitespace_setting,
6172 window,
6173 cx,
6174 );
6175 }
6176
6177 #[allow(clippy::too_many_arguments)]
6178 fn draw_invisibles(
6179 &self,
6180 selection_ranges: &[Range<DisplayPoint>],
6181 layout: &EditorLayout,
6182 content_origin: gpui::Point<Pixels>,
6183 line_y: Pixels,
6184 row: DisplayRow,
6185 line_height: Pixels,
6186 whitespace_setting: ShowWhitespaceSetting,
6187 window: &mut Window,
6188 cx: &mut App,
6189 ) {
6190 let extract_whitespace_info = |invisible: &Invisible| {
6191 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6192 Invisible::Tab {
6193 line_start_offset,
6194 line_end_offset,
6195 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6196 Invisible::Whitespace { line_offset } => {
6197 (*line_offset, line_offset + 1, &layout.space_invisible)
6198 }
6199 };
6200
6201 let x_offset = self.x_for_index(token_offset);
6202 let invisible_offset =
6203 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6204 let origin = content_origin
6205 + gpui::point(
6206 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6207 line_y,
6208 );
6209
6210 (
6211 [token_offset, token_end_offset],
6212 Box::new(move |window: &mut Window, cx: &mut App| {
6213 invisible_symbol
6214 .paint(origin, line_height, window, cx)
6215 .log_err();
6216 }),
6217 )
6218 };
6219
6220 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6221 match whitespace_setting {
6222 ShowWhitespaceSetting::None => (),
6223 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6224 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6225 let invisible_point = DisplayPoint::new(row, start as u32);
6226 if !selection_ranges
6227 .iter()
6228 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6229 {
6230 return;
6231 }
6232
6233 paint(window, cx);
6234 }),
6235
6236 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6237 // - It is a tab
6238 // - It is adjacent to an edge (start or end)
6239 // - It is adjacent to a whitespace (left or right)
6240 ShowWhitespaceSetting::Boundary => {
6241 // 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
6242 // the above cases.
6243 // Note: We zip in the original `invisibles` to check for tab equality
6244 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6245 for (([start, end], paint), invisible) in
6246 invisible_iter.zip_eq(self.invisibles.iter())
6247 {
6248 let should_render = match (&last_seen, invisible) {
6249 (_, Invisible::Tab { .. }) => true,
6250 (Some((_, last_end, _)), _) => *last_end == start,
6251 _ => false,
6252 };
6253
6254 if should_render || start == 0 || end == self.len {
6255 paint(window, cx);
6256
6257 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6258 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6259 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6260 // Note that we need to make sure that the last one is actually adjacent
6261 if !should_render_last && last_end == start {
6262 paint_last(window, cx);
6263 }
6264 }
6265 }
6266
6267 // Manually render anything within a selection
6268 let invisible_point = DisplayPoint::new(row, start as u32);
6269 if selection_ranges.iter().any(|region| {
6270 region.start <= invisible_point && invisible_point < region.end
6271 }) {
6272 paint(window, cx);
6273 }
6274
6275 last_seen = Some((should_render, end, paint));
6276 }
6277 }
6278 }
6279 }
6280
6281 pub fn x_for_index(&self, index: usize) -> Pixels {
6282 let mut fragment_start_x = Pixels::ZERO;
6283 let mut fragment_start_index = 0;
6284
6285 for fragment in &self.fragments {
6286 match fragment {
6287 LineFragment::Text(shaped_line) => {
6288 let fragment_end_index = fragment_start_index + shaped_line.len;
6289 if index < fragment_end_index {
6290 return fragment_start_x
6291 + shaped_line.x_for_index(index - fragment_start_index);
6292 }
6293 fragment_start_x += shaped_line.width;
6294 fragment_start_index = fragment_end_index;
6295 }
6296 LineFragment::Element { len, size, .. } => {
6297 let fragment_end_index = fragment_start_index + len;
6298 if index < fragment_end_index {
6299 return fragment_start_x;
6300 }
6301 fragment_start_x += size.width;
6302 fragment_start_index = fragment_end_index;
6303 }
6304 }
6305 }
6306
6307 fragment_start_x
6308 }
6309
6310 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6311 let mut fragment_start_x = Pixels::ZERO;
6312 let mut fragment_start_index = 0;
6313
6314 for fragment in &self.fragments {
6315 match fragment {
6316 LineFragment::Text(shaped_line) => {
6317 let fragment_end_x = fragment_start_x + shaped_line.width;
6318 if x < fragment_end_x {
6319 return Some(
6320 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6321 );
6322 }
6323 fragment_start_x = fragment_end_x;
6324 fragment_start_index += shaped_line.len;
6325 }
6326 LineFragment::Element { len, size, .. } => {
6327 let fragment_end_x = fragment_start_x + size.width;
6328 if x < fragment_end_x {
6329 return Some(fragment_start_index);
6330 }
6331 fragment_start_index += len;
6332 fragment_start_x = fragment_end_x;
6333 }
6334 }
6335 }
6336
6337 None
6338 }
6339
6340 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6341 let mut fragment_start_index = 0;
6342
6343 for fragment in &self.fragments {
6344 match fragment {
6345 LineFragment::Text(shaped_line) => {
6346 let fragment_end_index = fragment_start_index + shaped_line.len;
6347 if index < fragment_end_index {
6348 return shaped_line.font_id_for_index(index - fragment_start_index);
6349 }
6350 fragment_start_index = fragment_end_index;
6351 }
6352 LineFragment::Element { len, .. } => {
6353 let fragment_end_index = fragment_start_index + len;
6354 if index < fragment_end_index {
6355 return None;
6356 }
6357 fragment_start_index = fragment_end_index;
6358 }
6359 }
6360 }
6361
6362 None
6363 }
6364}
6365
6366#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6367enum Invisible {
6368 /// A tab character
6369 ///
6370 /// A tab character is internally represented by spaces (configured by the user's tab width)
6371 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6372 /// adjacency checks.
6373 Tab {
6374 line_start_offset: usize,
6375 line_end_offset: usize,
6376 },
6377 Whitespace {
6378 line_offset: usize,
6379 },
6380}
6381
6382impl EditorElement {
6383 /// Returns the rem size to use when rendering the [`EditorElement`].
6384 ///
6385 /// This allows UI elements to scale based on the `buffer_font_size`.
6386 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6387 match self.editor.read(cx).mode {
6388 EditorMode::Full => {
6389 let buffer_font_size = self.style.text.font_size;
6390 match buffer_font_size {
6391 AbsoluteLength::Pixels(pixels) => {
6392 let rem_size_scale = {
6393 // Our default UI font size is 14px on a 16px base scale.
6394 // This means the default UI font size is 0.875rems.
6395 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6396
6397 // We then determine the delta between a single rem and the default font
6398 // size scale.
6399 let default_font_size_delta = 1. - default_font_size_scale;
6400
6401 // Finally, we add this delta to 1rem to get the scale factor that
6402 // should be used to scale up the UI.
6403 1. + default_font_size_delta
6404 };
6405
6406 Some(pixels * rem_size_scale)
6407 }
6408 AbsoluteLength::Rems(rems) => {
6409 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6410 }
6411 }
6412 }
6413 // We currently use single-line and auto-height editors in UI contexts,
6414 // so we don't want to scale everything with the buffer font size, as it
6415 // ends up looking off.
6416 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6417 }
6418 }
6419}
6420
6421impl Element for EditorElement {
6422 type RequestLayoutState = ();
6423 type PrepaintState = EditorLayout;
6424
6425 fn id(&self) -> Option<ElementId> {
6426 None
6427 }
6428
6429 fn request_layout(
6430 &mut self,
6431 _: Option<&GlobalElementId>,
6432 window: &mut Window,
6433 cx: &mut App,
6434 ) -> (gpui::LayoutId, ()) {
6435 let rem_size = self.rem_size(cx);
6436 window.with_rem_size(rem_size, |window| {
6437 self.editor.update(cx, |editor, cx| {
6438 editor.set_style(self.style.clone(), window, cx);
6439
6440 let layout_id = match editor.mode {
6441 EditorMode::SingleLine { auto_width } => {
6442 let rem_size = window.rem_size();
6443
6444 let height = self.style.text.line_height_in_pixels(rem_size);
6445 if auto_width {
6446 let editor_handle = cx.entity().clone();
6447 let style = self.style.clone();
6448 window.request_measured_layout(
6449 Style::default(),
6450 move |_, _, window, cx| {
6451 let editor_snapshot = editor_handle
6452 .update(cx, |editor, cx| editor.snapshot(window, cx));
6453 let line = Self::layout_lines(
6454 DisplayRow(0)..DisplayRow(1),
6455 &editor_snapshot,
6456 &style,
6457 px(f32::MAX),
6458 |_| false, // Single lines never soft wrap
6459 window,
6460 cx,
6461 )
6462 .pop()
6463 .unwrap();
6464
6465 let font_id =
6466 window.text_system().resolve_font(&style.text.font());
6467 let font_size =
6468 style.text.font_size.to_pixels(window.rem_size());
6469 let em_width =
6470 window.text_system().em_width(font_id, font_size).unwrap();
6471
6472 size(line.width + em_width, height)
6473 },
6474 )
6475 } else {
6476 let mut style = Style::default();
6477 style.size.height = height.into();
6478 style.size.width = relative(1.).into();
6479 window.request_layout(style, None, cx)
6480 }
6481 }
6482 EditorMode::AutoHeight { max_lines } => {
6483 let editor_handle = cx.entity().clone();
6484 let max_line_number_width =
6485 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6486 window.request_measured_layout(
6487 Style::default(),
6488 move |known_dimensions, available_space, window, cx| {
6489 editor_handle
6490 .update(cx, |editor, cx| {
6491 compute_auto_height_layout(
6492 editor,
6493 max_lines,
6494 max_line_number_width,
6495 known_dimensions,
6496 available_space.width,
6497 window,
6498 cx,
6499 )
6500 })
6501 .unwrap_or_default()
6502 },
6503 )
6504 }
6505 EditorMode::Full => {
6506 let mut style = Style::default();
6507 style.size.width = relative(1.).into();
6508 style.size.height = relative(1.).into();
6509 window.request_layout(style, None, cx)
6510 }
6511 };
6512
6513 (layout_id, ())
6514 })
6515 })
6516 }
6517
6518 fn prepaint(
6519 &mut self,
6520 _: Option<&GlobalElementId>,
6521 bounds: Bounds<Pixels>,
6522 _: &mut Self::RequestLayoutState,
6523 window: &mut Window,
6524 cx: &mut App,
6525 ) -> Self::PrepaintState {
6526 let text_style = TextStyleRefinement {
6527 font_size: Some(self.style.text.font_size),
6528 line_height: Some(self.style.text.line_height),
6529 ..Default::default()
6530 };
6531 let focus_handle = self.editor.focus_handle(cx);
6532 window.set_view_id(self.editor.entity_id());
6533 window.set_focus_handle(&focus_handle, cx);
6534
6535 let rem_size = self.rem_size(cx);
6536 window.with_rem_size(rem_size, |window| {
6537 window.with_text_style(Some(text_style), |window| {
6538 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6539 let mut snapshot = self
6540 .editor
6541 .update(cx, |editor, cx| editor.snapshot(window, cx));
6542 let style = self.style.clone();
6543
6544 let font_id = window.text_system().resolve_font(&style.text.font());
6545 let font_size = style.text.font_size.to_pixels(window.rem_size());
6546 let line_height = style.text.line_height_in_pixels(window.rem_size());
6547 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6548 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6549
6550 let letter_size = size(em_width, line_height);
6551
6552 let gutter_dimensions = snapshot
6553 .gutter_dimensions(
6554 font_id,
6555 font_size,
6556 self.max_line_number_width(&snapshot, window, cx),
6557 cx,
6558 )
6559 .unwrap_or_default();
6560 let text_width = bounds.size.width - gutter_dimensions.width;
6561
6562 let editor_width =
6563 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6564
6565 snapshot = self.editor.update(cx, |editor, cx| {
6566 editor.last_bounds = Some(bounds);
6567 editor.gutter_dimensions = gutter_dimensions;
6568 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6569
6570 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6571 snapshot
6572 } else {
6573 let wrap_width = match editor.soft_wrap_mode(cx) {
6574 SoftWrap::GitDiff => None,
6575 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6576 SoftWrap::EditorWidth => Some(editor_width),
6577 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6578 SoftWrap::Bounded(column) => {
6579 Some(editor_width.min(column as f32 * em_advance))
6580 }
6581 };
6582
6583 if editor.set_wrap_width(wrap_width, cx) {
6584 editor.snapshot(window, cx)
6585 } else {
6586 snapshot
6587 }
6588 }
6589 });
6590
6591 let wrap_guides = self
6592 .editor
6593 .read(cx)
6594 .wrap_guides(cx)
6595 .iter()
6596 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6597 .collect::<SmallVec<[_; 2]>>();
6598
6599 let hitbox = window.insert_hitbox(bounds, false);
6600 let gutter_hitbox =
6601 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6602 let text_hitbox = window.insert_hitbox(
6603 Bounds {
6604 origin: gutter_hitbox.top_right(),
6605 size: size(text_width, bounds.size.height),
6606 },
6607 false,
6608 );
6609 // Offset the content_bounds from the text_bounds by the gutter margin (which
6610 // is roughly half a character wide) to make hit testing work more like how we want.
6611 let content_origin =
6612 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6613
6614 let scrollbar_bounds =
6615 Bounds::from_corners(content_origin, bounds.bottom_right());
6616
6617 let height_in_lines = scrollbar_bounds.size.height / line_height;
6618
6619 // NOTE: The max row number in the current file, minus one
6620 let max_row = snapshot.max_point().row().as_f32();
6621
6622 // NOTE: The max scroll position for the top of the window
6623 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6624 (max_row - height_in_lines + 1.).max(0.)
6625 } else {
6626 let settings = EditorSettings::get_global(cx);
6627 match settings.scroll_beyond_last_line {
6628 ScrollBeyondLastLine::OnePage => max_row,
6629 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6630 ScrollBeyondLastLine::VerticalScrollMargin => {
6631 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6632 .max(0.)
6633 }
6634 }
6635 };
6636
6637 // TODO: Autoscrolling for both axes
6638 let mut autoscroll_request = None;
6639 let mut autoscroll_containing_element = false;
6640 let mut autoscroll_horizontally = false;
6641 self.editor.update(cx, |editor, cx| {
6642 autoscroll_request = editor.autoscroll_request();
6643 autoscroll_containing_element =
6644 autoscroll_request.is_some() || editor.has_pending_selection();
6645 // TODO: Is this horizontal or vertical?!
6646 autoscroll_horizontally = editor.autoscroll_vertically(
6647 bounds,
6648 line_height,
6649 max_scroll_top,
6650 window,
6651 cx,
6652 );
6653 snapshot = editor.snapshot(window, cx);
6654 });
6655
6656 let mut scroll_position = snapshot.scroll_position();
6657 // The scroll position is a fractional point, the whole number of which represents
6658 // the top of the window in terms of display rows.
6659 let start_row = DisplayRow(scroll_position.y as u32);
6660 let max_row = snapshot.max_point().row();
6661 let end_row = cmp::min(
6662 (scroll_position.y + height_in_lines).ceil() as u32,
6663 max_row.next_row().0,
6664 );
6665 let end_row = DisplayRow(end_row);
6666
6667 let row_infos = snapshot
6668 .row_infos(start_row)
6669 .take((start_row..end_row).len())
6670 .collect::<Vec<RowInfo>>();
6671 let is_row_soft_wrapped = |row: usize| {
6672 row_infos
6673 .get(row)
6674 .map_or(true, |info| info.buffer_row.is_none())
6675 };
6676
6677 let start_anchor = if start_row == Default::default() {
6678 Anchor::min()
6679 } else {
6680 snapshot.buffer_snapshot.anchor_before(
6681 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6682 )
6683 };
6684 let end_anchor = if end_row > max_row {
6685 Anchor::max()
6686 } else {
6687 snapshot.buffer_snapshot.anchor_before(
6688 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6689 )
6690 };
6691
6692 let mut highlighted_rows = self
6693 .editor
6694 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6695
6696 for (ix, row_info) in row_infos.iter().enumerate() {
6697 let Some(diff_status) = row_info.diff_status else {
6698 continue;
6699 };
6700
6701 let staged_opacity = 0.10;
6702 let unstaged_opacity = 0.04;
6703
6704 let background_color = match diff_status.kind {
6705 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6706 DiffHunkStatusKind::Deleted => {
6707 cx.theme().colors().version_control_deleted
6708 }
6709 DiffHunkStatusKind::Modified => {
6710 debug_panic!("modified diff status for row info");
6711 continue;
6712 }
6713 };
6714 let background_color =
6715 if diff_status.secondary == DiffHunkSecondaryStatus::None {
6716 background_color.opacity(staged_opacity)
6717 } else {
6718 background_color.opacity(unstaged_opacity)
6719 };
6720
6721 highlighted_rows
6722 .entry(start_row + DisplayRow(ix as u32))
6723 .or_insert(background_color.into());
6724 }
6725
6726 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6727 start_anchor..end_anchor,
6728 &snapshot.display_snapshot,
6729 cx.theme().colors(),
6730 );
6731 let highlighted_gutter_ranges =
6732 self.editor.read(cx).gutter_highlights_in_range(
6733 start_anchor..end_anchor,
6734 &snapshot.display_snapshot,
6735 cx,
6736 );
6737
6738 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6739 start_anchor..end_anchor,
6740 &snapshot.display_snapshot,
6741 cx,
6742 );
6743
6744 let (local_selections, selected_buffer_ids): (
6745 Vec<Selection<Point>>,
6746 Vec<BufferId>,
6747 ) = self.editor.update(cx, |editor, cx| {
6748 let all_selections = editor.selections.all::<Point>(cx);
6749 let selected_buffer_ids = if editor.is_singleton(cx) {
6750 Vec::new()
6751 } else {
6752 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6753
6754 for selection in all_selections {
6755 for buffer_id in snapshot
6756 .buffer_snapshot
6757 .buffer_ids_for_range(selection.range())
6758 {
6759 if selected_buffer_ids.last() != Some(&buffer_id) {
6760 selected_buffer_ids.push(buffer_id);
6761 }
6762 }
6763 }
6764
6765 selected_buffer_ids
6766 };
6767
6768 let mut selections = editor
6769 .selections
6770 .disjoint_in_range(start_anchor..end_anchor, cx);
6771 selections.extend(editor.selections.pending(cx));
6772
6773 (selections, selected_buffer_ids)
6774 });
6775
6776 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6777 start_anchor,
6778 end_anchor,
6779 &local_selections,
6780 &snapshot,
6781 start_row,
6782 end_row,
6783 window,
6784 cx,
6785 );
6786
6787 let line_numbers = self.layout_line_numbers(
6788 Some(&gutter_hitbox),
6789 gutter_dimensions,
6790 line_height,
6791 scroll_position,
6792 start_row..end_row,
6793 &row_infos,
6794 newest_selection_head,
6795 &snapshot,
6796 window,
6797 cx,
6798 );
6799
6800 let mut crease_toggles =
6801 window.with_element_namespace("crease_toggles", |window| {
6802 self.layout_crease_toggles(
6803 start_row..end_row,
6804 &row_infos,
6805 &active_rows,
6806 &snapshot,
6807 window,
6808 cx,
6809 )
6810 });
6811 let crease_trailers =
6812 window.with_element_namespace("crease_trailers", |window| {
6813 self.layout_crease_trailers(
6814 row_infos.iter().copied(),
6815 &snapshot,
6816 window,
6817 cx,
6818 )
6819 });
6820
6821 let display_hunks = self.layout_gutter_diff_hunks(
6822 line_height,
6823 &gutter_hitbox,
6824 start_row..end_row,
6825 &snapshot,
6826 window,
6827 cx,
6828 );
6829
6830 let mut line_layouts = Self::layout_lines(
6831 start_row..end_row,
6832 &snapshot,
6833 &self.style,
6834 editor_width,
6835 is_row_soft_wrapped,
6836 window,
6837 cx,
6838 );
6839
6840 let longest_line_blame_width = self
6841 .editor
6842 .update(cx, |editor, cx| {
6843 if !editor.show_git_blame_inline {
6844 return None;
6845 }
6846 let blame = editor.blame.as_ref()?;
6847 let blame_entry = blame
6848 .update(cx, |blame, cx| {
6849 let row_infos =
6850 snapshot.row_infos(snapshot.longest_row()).next()?;
6851 blame.blame_for_rows(&[row_infos], cx).next()
6852 })
6853 .flatten()?;
6854 let mut element = render_inline_blame_entry(
6855 self.editor.clone(),
6856 blame,
6857 blame_entry,
6858 &style,
6859 cx,
6860 );
6861 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6862 Some(
6863 element
6864 .layout_as_root(AvailableSpace::min_size(), window, cx)
6865 .width
6866 + inline_blame_padding,
6867 )
6868 })
6869 .unwrap_or(Pixels::ZERO);
6870
6871 let longest_line_width = layout_line(
6872 snapshot.longest_row(),
6873 &snapshot,
6874 &style,
6875 editor_width,
6876 is_row_soft_wrapped,
6877 window,
6878 cx,
6879 )
6880 .width;
6881
6882 let scrollbar_range_data = ScrollbarRangeData::new(
6883 scrollbar_bounds,
6884 letter_size,
6885 &snapshot,
6886 longest_line_width,
6887 longest_line_blame_width,
6888 &style,
6889 editor_width,
6890 cx,
6891 );
6892
6893 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6894 let mut scroll_width = scroll_range_bounds.size.width;
6895
6896 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6897 snapshot.sticky_header_excerpt(start_row)
6898 } else {
6899 None
6900 };
6901 let sticky_header_excerpt_id =
6902 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6903
6904 let blocks = window.with_element_namespace("blocks", |window| {
6905 self.render_blocks(
6906 start_row..end_row,
6907 &snapshot,
6908 &hitbox,
6909 &text_hitbox,
6910 editor_width,
6911 &mut scroll_width,
6912 &gutter_dimensions,
6913 em_width,
6914 gutter_dimensions.full_width(),
6915 line_height,
6916 &line_layouts,
6917 &local_selections,
6918 &selected_buffer_ids,
6919 is_row_soft_wrapped,
6920 sticky_header_excerpt_id,
6921 window,
6922 cx,
6923 )
6924 });
6925 let mut blocks = match blocks {
6926 Ok(blocks) => blocks,
6927 Err(resized_blocks) => {
6928 self.editor.update(cx, |editor, cx| {
6929 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6930 });
6931 return self.prepaint(None, bounds, &mut (), window, cx);
6932 }
6933 };
6934
6935 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6936 window.with_element_namespace("blocks", |window| {
6937 self.layout_sticky_buffer_header(
6938 sticky_header_excerpt,
6939 scroll_position.y,
6940 line_height,
6941 &snapshot,
6942 &hitbox,
6943 &selected_buffer_ids,
6944 window,
6945 cx,
6946 )
6947 })
6948 });
6949
6950 let start_buffer_row =
6951 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6952 let end_buffer_row =
6953 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6954
6955 let scroll_max = point(
6956 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6957 max_row.as_f32(),
6958 );
6959
6960 self.editor.update(cx, |editor, cx| {
6961 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6962
6963 let autoscrolled = if autoscroll_horizontally {
6964 editor.autoscroll_horizontally(
6965 start_row,
6966 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
6967 scroll_width,
6968 em_width,
6969 &line_layouts,
6970 cx,
6971 )
6972 } else {
6973 false
6974 };
6975
6976 if clamped || autoscrolled {
6977 snapshot = editor.snapshot(window, cx);
6978 scroll_position = snapshot.scroll_position();
6979 }
6980 });
6981
6982 let scroll_pixel_position = point(
6983 scroll_position.x * em_width,
6984 scroll_position.y * line_height,
6985 );
6986
6987 let indent_guides = self.layout_indent_guides(
6988 content_origin,
6989 text_hitbox.origin,
6990 start_buffer_row..end_buffer_row,
6991 scroll_pixel_position,
6992 line_height,
6993 &snapshot,
6994 window,
6995 cx,
6996 );
6997
6998 let crease_trailers =
6999 window.with_element_namespace("crease_trailers", |window| {
7000 self.prepaint_crease_trailers(
7001 crease_trailers,
7002 &line_layouts,
7003 line_height,
7004 content_origin,
7005 scroll_pixel_position,
7006 em_width,
7007 window,
7008 cx,
7009 )
7010 });
7011
7012 let (inline_completion_popover, inline_completion_popover_origin) = self
7013 .editor
7014 .update(cx, |editor, cx| {
7015 editor.render_edit_prediction_popover(
7016 &text_hitbox.bounds,
7017 content_origin,
7018 &snapshot,
7019 start_row..end_row,
7020 scroll_position.y,
7021 scroll_position.y + height_in_lines,
7022 &line_layouts,
7023 line_height,
7024 scroll_pixel_position,
7025 newest_selection_head,
7026 editor_width,
7027 &style,
7028 window,
7029 cx,
7030 )
7031 })
7032 .unzip();
7033
7034 let mut inline_diagnostics = self.layout_inline_diagnostics(
7035 &line_layouts,
7036 &crease_trailers,
7037 content_origin,
7038 scroll_pixel_position,
7039 inline_completion_popover_origin,
7040 start_row,
7041 end_row,
7042 line_height,
7043 em_width,
7044 &style,
7045 window,
7046 cx,
7047 );
7048
7049 let mut inline_blame = None;
7050 if let Some(newest_selection_head) = newest_selection_head {
7051 let display_row = newest_selection_head.row();
7052 if (start_row..end_row).contains(&display_row) {
7053 let line_ix = display_row.minus(start_row) as usize;
7054 let row_info = &row_infos[line_ix];
7055 let line_layout = &line_layouts[line_ix];
7056 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7057 inline_blame = self.layout_inline_blame(
7058 display_row,
7059 row_info,
7060 line_layout,
7061 crease_trailer_layout,
7062 em_width,
7063 content_origin,
7064 scroll_pixel_position,
7065 line_height,
7066 window,
7067 cx,
7068 );
7069 if inline_blame.is_some() {
7070 // Blame overrides inline diagnostics
7071 inline_diagnostics.remove(&display_row);
7072 }
7073 }
7074 }
7075
7076 let blamed_display_rows = self.layout_blame_entries(
7077 &row_infos,
7078 em_width,
7079 scroll_position,
7080 line_height,
7081 &gutter_hitbox,
7082 gutter_dimensions.git_blame_entries_width,
7083 window,
7084 cx,
7085 );
7086
7087 let scroll_max = point(
7088 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7089 max_scroll_top,
7090 );
7091
7092 self.editor.update(cx, |editor, cx| {
7093 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7094
7095 let autoscrolled = if autoscroll_horizontally {
7096 editor.autoscroll_horizontally(
7097 start_row,
7098 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7099 scroll_width,
7100 em_width,
7101 &line_layouts,
7102 cx,
7103 )
7104 } else {
7105 false
7106 };
7107
7108 if clamped || autoscrolled {
7109 snapshot = editor.snapshot(window, cx);
7110 scroll_position = snapshot.scroll_position();
7111 }
7112 });
7113
7114 let line_elements = self.prepaint_lines(
7115 start_row,
7116 &mut line_layouts,
7117 line_height,
7118 scroll_pixel_position,
7119 content_origin,
7120 window,
7121 cx,
7122 );
7123
7124 let mut block_start_rows = HashSet::default();
7125
7126 window.with_element_namespace("blocks", |window| {
7127 self.layout_blocks(
7128 &mut blocks,
7129 &mut block_start_rows,
7130 &hitbox,
7131 line_height,
7132 scroll_pixel_position,
7133 window,
7134 cx,
7135 );
7136 });
7137
7138 let cursors = self.collect_cursors(&snapshot, cx);
7139 let visible_row_range = start_row..end_row;
7140 let non_visible_cursors = cursors
7141 .iter()
7142 .any(|c| !visible_row_range.contains(&c.0.row()));
7143
7144 let visible_cursors = self.layout_visible_cursors(
7145 &snapshot,
7146 &selections,
7147 &block_start_rows,
7148 start_row..end_row,
7149 &line_layouts,
7150 &text_hitbox,
7151 content_origin,
7152 scroll_position,
7153 scroll_pixel_position,
7154 line_height,
7155 em_width,
7156 em_advance,
7157 autoscroll_containing_element,
7158 window,
7159 cx,
7160 );
7161
7162 let scrollbars_layout = self.layout_scrollbars(
7163 &snapshot,
7164 scrollbar_range_data,
7165 scroll_position,
7166 non_visible_cursors,
7167 window,
7168 cx,
7169 );
7170
7171 let gutter_settings = EditorSettings::get_global(cx).gutter;
7172
7173 let rows_with_hunk_bounds = display_hunks
7174 .iter()
7175 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7176 .fold(
7177 HashMap::default(),
7178 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7179 match hunk {
7180 DisplayDiffHunk::Folded { display_row } => {
7181 rows_with_hunk_bounds.insert(*display_row, bounds);
7182 }
7183 DisplayDiffHunk::Unfolded {
7184 display_row_range, ..
7185 } => {
7186 for display_row in display_row_range.iter_rows() {
7187 rows_with_hunk_bounds.insert(display_row, bounds);
7188 }
7189 }
7190 }
7191 rows_with_hunk_bounds
7192 },
7193 );
7194 let mut code_actions_indicator = None;
7195 if let Some(newest_selection_head) = newest_selection_head {
7196 let newest_selection_point =
7197 newest_selection_head.to_point(&snapshot.display_snapshot);
7198
7199 if (start_row..end_row).contains(&newest_selection_head.row()) {
7200 self.layout_cursor_popovers(
7201 line_height,
7202 &text_hitbox,
7203 content_origin,
7204 start_row,
7205 scroll_pixel_position,
7206 &line_layouts,
7207 newest_selection_head,
7208 newest_selection_point,
7209 &style,
7210 window,
7211 cx,
7212 );
7213
7214 let show_code_actions = snapshot
7215 .show_code_actions
7216 .unwrap_or(gutter_settings.code_actions);
7217 if show_code_actions {
7218 let newest_selection_point =
7219 newest_selection_head.to_point(&snapshot.display_snapshot);
7220 if !snapshot
7221 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7222 {
7223 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7224 MultiBufferRow(newest_selection_point.row),
7225 );
7226 if let Some((buffer, range)) = buffer {
7227 let buffer_id = buffer.remote_id();
7228 let row = range.start.row;
7229 let has_test_indicator = self
7230 .editor
7231 .read(cx)
7232 .tasks
7233 .contains_key(&(buffer_id, row));
7234
7235 if !has_test_indicator {
7236 code_actions_indicator = self
7237 .layout_code_actions_indicator(
7238 line_height,
7239 newest_selection_head,
7240 scroll_pixel_position,
7241 &gutter_dimensions,
7242 &gutter_hitbox,
7243 &rows_with_hunk_bounds,
7244 window,
7245 cx,
7246 );
7247 }
7248 }
7249 }
7250 }
7251 }
7252 }
7253
7254 self.layout_gutter_menu(
7255 line_height,
7256 &text_hitbox,
7257 content_origin,
7258 scroll_pixel_position,
7259 gutter_dimensions.width - gutter_dimensions.left_padding,
7260 window,
7261 cx,
7262 );
7263
7264 let test_indicators = if gutter_settings.runnables {
7265 self.layout_run_indicators(
7266 line_height,
7267 start_row..end_row,
7268 scroll_pixel_position,
7269 &gutter_dimensions,
7270 &gutter_hitbox,
7271 &rows_with_hunk_bounds,
7272 &snapshot,
7273 window,
7274 cx,
7275 )
7276 } else {
7277 Vec::new()
7278 };
7279
7280 self.layout_signature_help(
7281 &hitbox,
7282 content_origin,
7283 scroll_pixel_position,
7284 newest_selection_head,
7285 start_row,
7286 &line_layouts,
7287 line_height,
7288 em_width,
7289 window,
7290 cx,
7291 );
7292
7293 if !cx.has_active_drag() {
7294 self.layout_hover_popovers(
7295 &snapshot,
7296 &hitbox,
7297 &text_hitbox,
7298 start_row..end_row,
7299 content_origin,
7300 scroll_pixel_position,
7301 &line_layouts,
7302 line_height,
7303 em_width,
7304 window,
7305 cx,
7306 );
7307 }
7308
7309 let mouse_context_menu = self.layout_mouse_context_menu(
7310 &snapshot,
7311 start_row..end_row,
7312 content_origin,
7313 window,
7314 cx,
7315 );
7316
7317 window.with_element_namespace("crease_toggles", |window| {
7318 self.prepaint_crease_toggles(
7319 &mut crease_toggles,
7320 line_height,
7321 &gutter_dimensions,
7322 gutter_settings,
7323 scroll_pixel_position,
7324 &gutter_hitbox,
7325 window,
7326 cx,
7327 )
7328 });
7329
7330 let invisible_symbol_font_size = font_size / 2.;
7331 let tab_invisible = window
7332 .text_system()
7333 .shape_line(
7334 "→".into(),
7335 invisible_symbol_font_size,
7336 &[TextRun {
7337 len: "→".len(),
7338 font: self.style.text.font(),
7339 color: cx.theme().colors().editor_invisible,
7340 background_color: None,
7341 underline: None,
7342 strikethrough: None,
7343 }],
7344 )
7345 .unwrap();
7346 let space_invisible = window
7347 .text_system()
7348 .shape_line(
7349 "•".into(),
7350 invisible_symbol_font_size,
7351 &[TextRun {
7352 len: "•".len(),
7353 font: self.style.text.font(),
7354 color: cx.theme().colors().editor_invisible,
7355 background_color: None,
7356 underline: None,
7357 strikethrough: None,
7358 }],
7359 )
7360 .unwrap();
7361
7362 let mode = snapshot.mode;
7363
7364 let position_map = Rc::new(PositionMap {
7365 size: bounds.size,
7366 visible_row_range,
7367 scroll_pixel_position,
7368 scroll_max,
7369 line_layouts,
7370 line_height,
7371 em_width,
7372 em_advance,
7373 snapshot,
7374 gutter_hitbox: gutter_hitbox.clone(),
7375 text_hitbox: text_hitbox.clone(),
7376 });
7377
7378 self.editor.update(cx, |editor, _| {
7379 editor.last_position_map = Some(position_map.clone())
7380 });
7381
7382 let diff_hunk_controls = self.layout_diff_hunk_controls(
7383 start_row..end_row,
7384 &row_infos,
7385 &text_hitbox,
7386 &position_map,
7387 newest_selection_head,
7388 line_height,
7389 scroll_pixel_position,
7390 &display_hunks,
7391 self.editor.clone(),
7392 window,
7393 cx,
7394 );
7395
7396 EditorLayout {
7397 mode,
7398 position_map,
7399 visible_display_row_range: start_row..end_row,
7400 wrap_guides,
7401 indent_guides,
7402 hitbox,
7403 gutter_hitbox,
7404 display_hunks,
7405 content_origin,
7406 scrollbars_layout,
7407 active_rows,
7408 highlighted_rows,
7409 highlighted_ranges,
7410 highlighted_gutter_ranges,
7411 redacted_ranges,
7412 line_elements,
7413 line_numbers,
7414 blamed_display_rows,
7415 inline_diagnostics,
7416 inline_blame,
7417 blocks,
7418 cursors,
7419 visible_cursors,
7420 selections,
7421 inline_completion_popover,
7422 diff_hunk_controls,
7423 mouse_context_menu,
7424 test_indicators,
7425 code_actions_indicator,
7426 crease_toggles,
7427 crease_trailers,
7428 tab_invisible,
7429 space_invisible,
7430 sticky_buffer_header,
7431 }
7432 })
7433 })
7434 })
7435 }
7436
7437 fn paint(
7438 &mut self,
7439 _: Option<&GlobalElementId>,
7440 bounds: Bounds<gpui::Pixels>,
7441 _: &mut Self::RequestLayoutState,
7442 layout: &mut Self::PrepaintState,
7443 window: &mut Window,
7444 cx: &mut App,
7445 ) {
7446 let focus_handle = self.editor.focus_handle(cx);
7447 let key_context = self
7448 .editor
7449 .update(cx, |editor, cx| editor.key_context(window, cx));
7450
7451 window.set_key_context(key_context);
7452 window.handle_input(
7453 &focus_handle,
7454 ElementInputHandler::new(bounds, self.editor.clone()),
7455 cx,
7456 );
7457 self.register_actions(window, cx);
7458 self.register_key_listeners(window, cx, layout);
7459
7460 let text_style = TextStyleRefinement {
7461 font_size: Some(self.style.text.font_size),
7462 line_height: Some(self.style.text.line_height),
7463 ..Default::default()
7464 };
7465 let rem_size = self.rem_size(cx);
7466 window.with_rem_size(rem_size, |window| {
7467 window.with_text_style(Some(text_style), |window| {
7468 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7469 self.paint_mouse_listeners(layout, window, cx);
7470 self.paint_background(layout, window, cx);
7471 self.paint_indent_guides(layout, window, cx);
7472
7473 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7474 self.paint_blamed_display_rows(layout, window, cx);
7475 self.paint_line_numbers(layout, window, cx);
7476 }
7477
7478 self.paint_text(layout, window, cx);
7479
7480 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7481 self.paint_gutter_highlights(layout, window, cx);
7482 self.paint_gutter_indicators(layout, window, cx);
7483 }
7484
7485 if !layout.blocks.is_empty() {
7486 window.with_element_namespace("blocks", |window| {
7487 self.paint_blocks(layout, window, cx);
7488 });
7489 }
7490
7491 window.with_element_namespace("blocks", |window| {
7492 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7493 sticky_header.paint(window, cx)
7494 }
7495 });
7496
7497 self.paint_scrollbars(layout, window, cx);
7498 self.paint_inline_completion_popover(layout, window, cx);
7499 self.paint_mouse_context_menu(layout, window, cx);
7500 });
7501 })
7502 })
7503 }
7504}
7505
7506pub(super) fn gutter_bounds(
7507 editor_bounds: Bounds<Pixels>,
7508 gutter_dimensions: GutterDimensions,
7509) -> Bounds<Pixels> {
7510 Bounds {
7511 origin: editor_bounds.origin,
7512 size: size(gutter_dimensions.width, editor_bounds.size.height),
7513 }
7514}
7515
7516struct ScrollbarRangeData {
7517 scrollbar_bounds: Bounds<Pixels>,
7518 scroll_range: Bounds<Pixels>,
7519 letter_size: Size<Pixels>,
7520}
7521
7522impl ScrollbarRangeData {
7523 #[allow(clippy::too_many_arguments)]
7524 pub fn new(
7525 scrollbar_bounds: Bounds<Pixels>,
7526 letter_size: Size<Pixels>,
7527 snapshot: &EditorSnapshot,
7528 longest_line_width: Pixels,
7529 longest_line_blame_width: Pixels,
7530 style: &EditorStyle,
7531 editor_width: Pixels,
7532 cx: &mut App,
7533 ) -> ScrollbarRangeData {
7534 // TODO: Simplify this function down, it requires a lot of parameters
7535 let max_row = snapshot.max_point().row();
7536 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7537
7538 let settings = EditorSettings::get_global(cx);
7539 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7540 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7541 ScrollBeyondLastLine::Off => px(1.),
7542 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7543 };
7544
7545 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7546 letter_size.width + style.scrollbar_width
7547 } else {
7548 px(0.0)
7549 };
7550
7551 let overscroll = size(
7552 right_margin + longest_line_blame_width,
7553 letter_size.height * scroll_beyond_last_line,
7554 );
7555
7556 let scroll_range = Bounds {
7557 origin: scrollbar_bounds.origin,
7558 size: text_bounds_size + overscroll,
7559 };
7560
7561 ScrollbarRangeData {
7562 scrollbar_bounds,
7563 scroll_range,
7564 letter_size,
7565 }
7566 }
7567}
7568
7569impl IntoElement for EditorElement {
7570 type Element = Self;
7571
7572 fn into_element(self) -> Self::Element {
7573 self
7574 }
7575}
7576
7577pub struct EditorLayout {
7578 position_map: Rc<PositionMap>,
7579 hitbox: Hitbox,
7580 gutter_hitbox: Hitbox,
7581 content_origin: gpui::Point<Pixels>,
7582 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7583 mode: EditorMode,
7584 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7585 indent_guides: Option<Vec<IndentGuideLayout>>,
7586 visible_display_row_range: Range<DisplayRow>,
7587 active_rows: BTreeMap<DisplayRow, bool>,
7588 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7589 line_elements: SmallVec<[AnyElement; 1]>,
7590 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7591 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7592 blamed_display_rows: Option<Vec<AnyElement>>,
7593 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7594 inline_blame: Option<AnyElement>,
7595 blocks: Vec<BlockLayout>,
7596 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7597 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7598 redacted_ranges: Vec<Range<DisplayPoint>>,
7599 cursors: Vec<(DisplayPoint, Hsla)>,
7600 visible_cursors: Vec<CursorLayout>,
7601 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7602 code_actions_indicator: Option<AnyElement>,
7603 test_indicators: Vec<AnyElement>,
7604 crease_toggles: Vec<Option<AnyElement>>,
7605 diff_hunk_controls: Vec<AnyElement>,
7606 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7607 inline_completion_popover: Option<AnyElement>,
7608 mouse_context_menu: Option<AnyElement>,
7609 tab_invisible: ShapedLine,
7610 space_invisible: ShapedLine,
7611 sticky_buffer_header: Option<AnyElement>,
7612}
7613
7614impl EditorLayout {
7615 fn line_end_overshoot(&self) -> Pixels {
7616 0.15 * self.position_map.line_height
7617 }
7618}
7619
7620struct LineNumberLayout {
7621 shaped_line: ShapedLine,
7622 hitbox: Option<Hitbox>,
7623 display_row: DisplayRow,
7624}
7625
7626struct ColoredRange<T> {
7627 start: T,
7628 end: T,
7629 color: Hsla,
7630}
7631
7632#[derive(Clone)]
7633struct ScrollbarLayout {
7634 hitbox: Hitbox,
7635 visible_range: Range<f32>,
7636 visible: bool,
7637 text_unit_size: Pixels,
7638 thumb_size: Pixels,
7639 axis: Axis,
7640}
7641
7642impl ScrollbarLayout {
7643 const BORDER_WIDTH: Pixels = px(1.0);
7644 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7645 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7646 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7647
7648 fn thumb_bounds(&self) -> Bounds<Pixels> {
7649 match self.axis {
7650 Axis::Vertical => {
7651 let thumb_top = self.y_for_row(self.visible_range.start);
7652 let thumb_bottom = thumb_top + self.thumb_size;
7653 Bounds::from_corners(
7654 point(self.hitbox.left(), thumb_top),
7655 point(self.hitbox.right(), thumb_bottom),
7656 )
7657 }
7658 Axis::Horizontal => {
7659 let thumb_left =
7660 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7661 let thumb_right = thumb_left + self.thumb_size;
7662 Bounds::from_corners(
7663 point(thumb_left, self.hitbox.top()),
7664 point(thumb_right, self.hitbox.bottom()),
7665 )
7666 }
7667 }
7668 }
7669
7670 fn y_for_row(&self, row: f32) -> Pixels {
7671 self.hitbox.top() + row * self.text_unit_size
7672 }
7673
7674 fn marker_quads_for_ranges(
7675 &self,
7676 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7677 column: Option<usize>,
7678 ) -> Vec<PaintQuad> {
7679 struct MinMax {
7680 min: Pixels,
7681 max: Pixels,
7682 }
7683 let (x_range, height_limit) = if let Some(column) = column {
7684 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7685 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7686 let end = start + column_width;
7687 (
7688 Range { start, end },
7689 MinMax {
7690 min: Self::MIN_MARKER_HEIGHT,
7691 max: px(f32::MAX),
7692 },
7693 )
7694 } else {
7695 (
7696 Range {
7697 start: Self::BORDER_WIDTH,
7698 end: self.hitbox.size.width,
7699 },
7700 MinMax {
7701 min: Self::LINE_MARKER_HEIGHT,
7702 max: Self::LINE_MARKER_HEIGHT,
7703 },
7704 )
7705 };
7706
7707 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7708 let mut pixel_ranges = row_ranges
7709 .into_iter()
7710 .map(|range| {
7711 let start_y = row_to_y(range.start);
7712 let end_y = row_to_y(range.end)
7713 + self
7714 .text_unit_size
7715 .max(height_limit.min)
7716 .min(height_limit.max);
7717 ColoredRange {
7718 start: start_y,
7719 end: end_y,
7720 color: range.color,
7721 }
7722 })
7723 .peekable();
7724
7725 let mut quads = Vec::new();
7726 while let Some(mut pixel_range) = pixel_ranges.next() {
7727 while let Some(next_pixel_range) = pixel_ranges.peek() {
7728 if pixel_range.end >= next_pixel_range.start - px(1.0)
7729 && pixel_range.color == next_pixel_range.color
7730 {
7731 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7732 pixel_ranges.next();
7733 } else {
7734 break;
7735 }
7736 }
7737
7738 let bounds = Bounds::from_corners(
7739 point(x_range.start, pixel_range.start),
7740 point(x_range.end, pixel_range.end),
7741 );
7742 quads.push(quad(
7743 bounds,
7744 Corners::default(),
7745 pixel_range.color,
7746 Edges::default(),
7747 Hsla::transparent_black(),
7748 ));
7749 }
7750
7751 quads
7752 }
7753}
7754
7755struct CreaseTrailerLayout {
7756 element: AnyElement,
7757 bounds: Bounds<Pixels>,
7758}
7759
7760pub(crate) struct PositionMap {
7761 pub size: Size<Pixels>,
7762 pub line_height: Pixels,
7763 pub scroll_pixel_position: gpui::Point<Pixels>,
7764 pub scroll_max: gpui::Point<f32>,
7765 pub em_width: Pixels,
7766 pub em_advance: Pixels,
7767 pub visible_row_range: Range<DisplayRow>,
7768 pub line_layouts: Vec<LineWithInvisibles>,
7769 pub snapshot: EditorSnapshot,
7770 pub text_hitbox: Hitbox,
7771 pub gutter_hitbox: Hitbox,
7772}
7773
7774#[derive(Debug, Copy, Clone)]
7775pub struct PointForPosition {
7776 pub previous_valid: DisplayPoint,
7777 pub next_valid: DisplayPoint,
7778 pub exact_unclipped: DisplayPoint,
7779 pub column_overshoot_after_line_end: u32,
7780}
7781
7782impl PointForPosition {
7783 pub fn as_valid(&self) -> Option<DisplayPoint> {
7784 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7785 Some(self.previous_valid)
7786 } else {
7787 None
7788 }
7789 }
7790}
7791
7792impl PositionMap {
7793 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7794 let text_bounds = self.text_hitbox.bounds;
7795 let scroll_position = self.snapshot.scroll_position();
7796 let position = position - text_bounds.origin;
7797 let y = position.y.max(px(0.)).min(self.size.height);
7798 let x = position.x + (scroll_position.x * self.em_width);
7799 let row = ((y / self.line_height) + scroll_position.y) as u32;
7800
7801 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7802 .line_layouts
7803 .get(row as usize - scroll_position.y as usize)
7804 {
7805 if let Some(ix) = line.index_for_x(x) {
7806 (ix as u32, px(0.))
7807 } else {
7808 (line.len as u32, px(0.).max(x - line.width))
7809 }
7810 } else {
7811 (0, x)
7812 };
7813
7814 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7815 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7816 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7817
7818 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7819 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7820 PointForPosition {
7821 previous_valid,
7822 next_valid,
7823 exact_unclipped,
7824 column_overshoot_after_line_end,
7825 }
7826 }
7827}
7828
7829struct BlockLayout {
7830 id: BlockId,
7831 row: Option<DisplayRow>,
7832 element: AnyElement,
7833 available_space: Size<AvailableSpace>,
7834 style: BlockStyle,
7835}
7836
7837pub fn layout_line(
7838 row: DisplayRow,
7839 snapshot: &EditorSnapshot,
7840 style: &EditorStyle,
7841 text_width: Pixels,
7842 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7843 window: &mut Window,
7844 cx: &mut App,
7845) -> LineWithInvisibles {
7846 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7847 LineWithInvisibles::from_chunks(
7848 chunks,
7849 &style,
7850 MAX_LINE_LEN,
7851 1,
7852 snapshot.mode,
7853 text_width,
7854 is_row_soft_wrapped,
7855 window,
7856 cx,
7857 )
7858 .pop()
7859 .unwrap()
7860}
7861
7862#[derive(Debug)]
7863pub struct IndentGuideLayout {
7864 origin: gpui::Point<Pixels>,
7865 length: Pixels,
7866 single_indent_width: Pixels,
7867 depth: u32,
7868 active: bool,
7869 settings: IndentGuideSettings,
7870}
7871
7872pub struct CursorLayout {
7873 origin: gpui::Point<Pixels>,
7874 block_width: Pixels,
7875 line_height: Pixels,
7876 color: Hsla,
7877 shape: CursorShape,
7878 block_text: Option<ShapedLine>,
7879 cursor_name: Option<AnyElement>,
7880}
7881
7882#[derive(Debug)]
7883pub struct CursorName {
7884 string: SharedString,
7885 color: Hsla,
7886 is_top_row: bool,
7887}
7888
7889impl CursorLayout {
7890 pub fn new(
7891 origin: gpui::Point<Pixels>,
7892 block_width: Pixels,
7893 line_height: Pixels,
7894 color: Hsla,
7895 shape: CursorShape,
7896 block_text: Option<ShapedLine>,
7897 ) -> CursorLayout {
7898 CursorLayout {
7899 origin,
7900 block_width,
7901 line_height,
7902 color,
7903 shape,
7904 block_text,
7905 cursor_name: None,
7906 }
7907 }
7908
7909 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7910 Bounds {
7911 origin: self.origin + origin,
7912 size: size(self.block_width, self.line_height),
7913 }
7914 }
7915
7916 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7917 match self.shape {
7918 CursorShape::Bar => Bounds {
7919 origin: self.origin + origin,
7920 size: size(px(2.0), self.line_height),
7921 },
7922 CursorShape::Block | CursorShape::Hollow => Bounds {
7923 origin: self.origin + origin,
7924 size: size(self.block_width, self.line_height),
7925 },
7926 CursorShape::Underline => Bounds {
7927 origin: self.origin
7928 + origin
7929 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7930 size: size(self.block_width, px(2.0)),
7931 },
7932 }
7933 }
7934
7935 pub fn layout(
7936 &mut self,
7937 origin: gpui::Point<Pixels>,
7938 cursor_name: Option<CursorName>,
7939 window: &mut Window,
7940 cx: &mut App,
7941 ) {
7942 if let Some(cursor_name) = cursor_name {
7943 let bounds = self.bounds(origin);
7944 let text_size = self.line_height / 1.5;
7945
7946 let name_origin = if cursor_name.is_top_row {
7947 point(bounds.right() - px(1.), bounds.top())
7948 } else {
7949 match self.shape {
7950 CursorShape::Bar => point(
7951 bounds.right() - px(2.),
7952 bounds.top() - text_size / 2. - px(1.),
7953 ),
7954 _ => point(
7955 bounds.right() - px(1.),
7956 bounds.top() - text_size / 2. - px(1.),
7957 ),
7958 }
7959 };
7960 let mut name_element = div()
7961 .bg(self.color)
7962 .text_size(text_size)
7963 .px_0p5()
7964 .line_height(text_size + px(2.))
7965 .text_color(cursor_name.color)
7966 .child(cursor_name.string.clone())
7967 .into_any_element();
7968
7969 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
7970
7971 self.cursor_name = Some(name_element);
7972 }
7973 }
7974
7975 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
7976 let bounds = self.bounds(origin);
7977
7978 //Draw background or border quad
7979 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7980 outline(bounds, self.color)
7981 } else {
7982 fill(bounds, self.color)
7983 };
7984
7985 if let Some(name) = &mut self.cursor_name {
7986 name.paint(window, cx);
7987 }
7988
7989 window.paint_quad(cursor);
7990
7991 if let Some(block_text) = &self.block_text {
7992 block_text
7993 .paint(self.origin + origin, self.line_height, window, cx)
7994 .log_err();
7995 }
7996 }
7997
7998 pub fn shape(&self) -> CursorShape {
7999 self.shape
8000 }
8001}
8002
8003#[derive(Debug)]
8004pub struct HighlightedRange {
8005 pub start_y: Pixels,
8006 pub line_height: Pixels,
8007 pub lines: Vec<HighlightedRangeLine>,
8008 pub color: Hsla,
8009 pub corner_radius: Pixels,
8010}
8011
8012#[derive(Debug)]
8013pub struct HighlightedRangeLine {
8014 pub start_x: Pixels,
8015 pub end_x: Pixels,
8016}
8017
8018impl HighlightedRange {
8019 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8020 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8021 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8022 self.paint_lines(
8023 self.start_y + self.line_height,
8024 &self.lines[1..],
8025 bounds,
8026 window,
8027 );
8028 } else {
8029 self.paint_lines(self.start_y, &self.lines, bounds, window);
8030 }
8031 }
8032
8033 fn paint_lines(
8034 &self,
8035 start_y: Pixels,
8036 lines: &[HighlightedRangeLine],
8037 _bounds: Bounds<Pixels>,
8038 window: &mut Window,
8039 ) {
8040 if lines.is_empty() {
8041 return;
8042 }
8043
8044 let first_line = lines.first().unwrap();
8045 let last_line = lines.last().unwrap();
8046
8047 let first_top_left = point(first_line.start_x, start_y);
8048 let first_top_right = point(first_line.end_x, start_y);
8049
8050 let curve_height = point(Pixels::ZERO, self.corner_radius);
8051 let curve_width = |start_x: Pixels, end_x: Pixels| {
8052 let max = (end_x - start_x) / 2.;
8053 let width = if max < self.corner_radius {
8054 max
8055 } else {
8056 self.corner_radius
8057 };
8058
8059 point(width, Pixels::ZERO)
8060 };
8061
8062 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8063 let mut builder = gpui::PathBuilder::fill();
8064 builder.move_to(first_top_right - top_curve_width);
8065 builder.curve_to(first_top_right + curve_height, first_top_right);
8066
8067 let mut iter = lines.iter().enumerate().peekable();
8068 while let Some((ix, line)) = iter.next() {
8069 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8070
8071 if let Some((_, next_line)) = iter.peek() {
8072 let next_top_right = point(next_line.end_x, bottom_right.y);
8073
8074 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8075 Ordering::Equal => {
8076 builder.line_to(bottom_right);
8077 }
8078 Ordering::Less => {
8079 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8080 builder.line_to(bottom_right - curve_height);
8081 if self.corner_radius > Pixels::ZERO {
8082 builder.curve_to(bottom_right - curve_width, bottom_right);
8083 }
8084 builder.line_to(next_top_right + curve_width);
8085 if self.corner_radius > Pixels::ZERO {
8086 builder.curve_to(next_top_right + curve_height, next_top_right);
8087 }
8088 }
8089 Ordering::Greater => {
8090 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8091 builder.line_to(bottom_right - curve_height);
8092 if self.corner_radius > Pixels::ZERO {
8093 builder.curve_to(bottom_right + curve_width, bottom_right);
8094 }
8095 builder.line_to(next_top_right - curve_width);
8096 if self.corner_radius > Pixels::ZERO {
8097 builder.curve_to(next_top_right + curve_height, next_top_right);
8098 }
8099 }
8100 }
8101 } else {
8102 let curve_width = curve_width(line.start_x, line.end_x);
8103 builder.line_to(bottom_right - curve_height);
8104 if self.corner_radius > Pixels::ZERO {
8105 builder.curve_to(bottom_right - curve_width, bottom_right);
8106 }
8107
8108 let bottom_left = point(line.start_x, bottom_right.y);
8109 builder.line_to(bottom_left + curve_width);
8110 if self.corner_radius > Pixels::ZERO {
8111 builder.curve_to(bottom_left - curve_height, bottom_left);
8112 }
8113 }
8114 }
8115
8116 if first_line.start_x > last_line.start_x {
8117 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8118 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8119 builder.line_to(second_top_left + curve_height);
8120 if self.corner_radius > Pixels::ZERO {
8121 builder.curve_to(second_top_left + curve_width, second_top_left);
8122 }
8123 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8124 builder.line_to(first_bottom_left - curve_width);
8125 if self.corner_radius > Pixels::ZERO {
8126 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8127 }
8128 }
8129
8130 builder.line_to(first_top_left + curve_height);
8131 if self.corner_radius > Pixels::ZERO {
8132 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8133 }
8134 builder.line_to(first_top_right - top_curve_width);
8135
8136 if let Ok(path) = builder.build() {
8137 window.paint_path(path, self.color);
8138 }
8139 }
8140}
8141
8142enum CursorPopoverType {
8143 CodeContextMenu,
8144 EditPrediction,
8145}
8146
8147pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8148 (delta.pow(1.5) / 100.0).into()
8149}
8150
8151fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8152 (delta.pow(1.2) / 300.0).into()
8153}
8154
8155pub fn register_action<T: Action>(
8156 editor: &Entity<Editor>,
8157 window: &mut Window,
8158 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8159) {
8160 let editor = editor.clone();
8161 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8162 let action = action.downcast_ref().unwrap();
8163 if phase == DispatchPhase::Bubble {
8164 editor.update(cx, |editor, cx| {
8165 listener(editor, action, window, cx);
8166 })
8167 }
8168 })
8169}
8170
8171fn compute_auto_height_layout(
8172 editor: &mut Editor,
8173 max_lines: usize,
8174 max_line_number_width: Pixels,
8175 known_dimensions: Size<Option<Pixels>>,
8176 available_width: AvailableSpace,
8177 window: &mut Window,
8178 cx: &mut Context<Editor>,
8179) -> Option<Size<Pixels>> {
8180 let width = known_dimensions.width.or({
8181 if let AvailableSpace::Definite(available_width) = available_width {
8182 Some(available_width)
8183 } else {
8184 None
8185 }
8186 })?;
8187 if let Some(height) = known_dimensions.height {
8188 return Some(size(width, height));
8189 }
8190
8191 let style = editor.style.as_ref().unwrap();
8192 let font_id = window.text_system().resolve_font(&style.text.font());
8193 let font_size = style.text.font_size.to_pixels(window.rem_size());
8194 let line_height = style.text.line_height_in_pixels(window.rem_size());
8195 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8196
8197 let mut snapshot = editor.snapshot(window, cx);
8198 let gutter_dimensions = snapshot
8199 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8200 .unwrap_or_default();
8201
8202 editor.gutter_dimensions = gutter_dimensions;
8203 let text_width = width - gutter_dimensions.width;
8204 let overscroll = size(em_width, px(0.));
8205
8206 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8207 if editor.set_wrap_width(Some(editor_width), cx) {
8208 snapshot = editor.snapshot(window, cx);
8209 }
8210
8211 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8212 let height = scroll_height
8213 .max(line_height)
8214 .min(line_height * max_lines as f32);
8215
8216 Some(size(width, height))
8217}
8218
8219#[cfg(test)]
8220mod tests {
8221 use super::*;
8222 use crate::{
8223 display_map::{BlockPlacement, BlockProperties},
8224 editor_tests::{init_test, update_test_language_settings},
8225 Editor, MultiBuffer,
8226 };
8227 use gpui::{TestAppContext, VisualTestContext};
8228 use language::language_settings;
8229 use log::info;
8230 use std::num::NonZeroU32;
8231 use util::test::sample_text;
8232
8233 #[gpui::test]
8234 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8235 init_test(cx, |_| {});
8236 let window = cx.add_window(|window, cx| {
8237 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8238 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8239 });
8240
8241 let editor = window.root(cx).unwrap();
8242 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8243 let line_height = window
8244 .update(cx, |_, window, _| {
8245 style.text.line_height_in_pixels(window.rem_size())
8246 })
8247 .unwrap();
8248 let element = EditorElement::new(&editor, style);
8249 let snapshot = window
8250 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8251 .unwrap();
8252
8253 let layouts = cx
8254 .update_window(*window, |_, window, cx| {
8255 element.layout_line_numbers(
8256 None,
8257 GutterDimensions {
8258 left_padding: Pixels::ZERO,
8259 right_padding: Pixels::ZERO,
8260 width: px(30.0),
8261 margin: Pixels::ZERO,
8262 git_blame_entries_width: None,
8263 },
8264 line_height,
8265 gpui::Point::default(),
8266 DisplayRow(0)..DisplayRow(6),
8267 &(0..6)
8268 .map(|row| RowInfo {
8269 buffer_row: Some(row),
8270 ..Default::default()
8271 })
8272 .collect::<Vec<_>>(),
8273 Some(DisplayPoint::new(DisplayRow(0), 0)),
8274 &snapshot,
8275 window,
8276 cx,
8277 )
8278 })
8279 .unwrap();
8280 assert_eq!(layouts.len(), 6);
8281
8282 let relative_rows = window
8283 .update(cx, |editor, window, cx| {
8284 let snapshot = editor.snapshot(window, cx);
8285 element.calculate_relative_line_numbers(
8286 &snapshot,
8287 &(DisplayRow(0)..DisplayRow(6)),
8288 Some(DisplayRow(3)),
8289 )
8290 })
8291 .unwrap();
8292 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8293 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8294 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8295 // current line has no relative number
8296 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8297 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8298
8299 // works if cursor is before screen
8300 let relative_rows = window
8301 .update(cx, |editor, window, cx| {
8302 let snapshot = editor.snapshot(window, cx);
8303 element.calculate_relative_line_numbers(
8304 &snapshot,
8305 &(DisplayRow(3)..DisplayRow(6)),
8306 Some(DisplayRow(1)),
8307 )
8308 })
8309 .unwrap();
8310 assert_eq!(relative_rows.len(), 3);
8311 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8312 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8313 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8314
8315 // works if cursor is after screen
8316 let relative_rows = window
8317 .update(cx, |editor, window, cx| {
8318 let snapshot = editor.snapshot(window, cx);
8319 element.calculate_relative_line_numbers(
8320 &snapshot,
8321 &(DisplayRow(0)..DisplayRow(3)),
8322 Some(DisplayRow(6)),
8323 )
8324 })
8325 .unwrap();
8326 assert_eq!(relative_rows.len(), 3);
8327 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8328 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8329 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8330 }
8331
8332 #[gpui::test]
8333 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8334 init_test(cx, |_| {});
8335
8336 let window = cx.add_window(|window, cx| {
8337 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8338 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8339 });
8340 let cx = &mut VisualTestContext::from_window(*window, cx);
8341 let editor = window.root(cx).unwrap();
8342 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8343
8344 window
8345 .update(cx, |editor, window, cx| {
8346 editor.cursor_shape = CursorShape::Block;
8347 editor.change_selections(None, window, cx, |s| {
8348 s.select_ranges([
8349 Point::new(0, 0)..Point::new(1, 0),
8350 Point::new(3, 2)..Point::new(3, 3),
8351 Point::new(5, 6)..Point::new(6, 0),
8352 ]);
8353 });
8354 })
8355 .unwrap();
8356
8357 let (_, state) = cx.draw(
8358 point(px(500.), px(500.)),
8359 size(px(500.), px(500.)),
8360 |_, _| EditorElement::new(&editor, style),
8361 );
8362
8363 assert_eq!(state.selections.len(), 1);
8364 let local_selections = &state.selections[0].1;
8365 assert_eq!(local_selections.len(), 3);
8366 // moves cursor back one line
8367 assert_eq!(
8368 local_selections[0].head,
8369 DisplayPoint::new(DisplayRow(0), 6)
8370 );
8371 assert_eq!(
8372 local_selections[0].range,
8373 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8374 );
8375
8376 // moves cursor back one column
8377 assert_eq!(
8378 local_selections[1].range,
8379 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8380 );
8381 assert_eq!(
8382 local_selections[1].head,
8383 DisplayPoint::new(DisplayRow(3), 2)
8384 );
8385
8386 // leaves cursor on the max point
8387 assert_eq!(
8388 local_selections[2].range,
8389 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8390 );
8391 assert_eq!(
8392 local_selections[2].head,
8393 DisplayPoint::new(DisplayRow(6), 0)
8394 );
8395
8396 // active lines does not include 1 (even though the range of the selection does)
8397 assert_eq!(
8398 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8399 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8400 );
8401
8402 // multi-buffer support
8403 // in DisplayPoint coordinates, this is what we're dealing with:
8404 // 0: [[file
8405 // 1: header
8406 // 2: section]]
8407 // 3: aaaaaa
8408 // 4: bbbbbb
8409 // 5: cccccc
8410 // 6:
8411 // 7: [[footer]]
8412 // 8: [[header]]
8413 // 9: ffffff
8414 // 10: gggggg
8415 // 11: hhhhhh
8416 // 12:
8417 // 13: [[footer]]
8418 // 14: [[file
8419 // 15: header
8420 // 16: section]]
8421 // 17: bbbbbb
8422 // 18: cccccc
8423 // 19: dddddd
8424 // 20: [[footer]]
8425 let window = cx.add_window(|window, cx| {
8426 let buffer = MultiBuffer::build_multi(
8427 [
8428 (
8429 &(sample_text(8, 6, 'a') + "\n"),
8430 vec![
8431 Point::new(0, 0)..Point::new(3, 0),
8432 Point::new(4, 0)..Point::new(7, 0),
8433 ],
8434 ),
8435 (
8436 &(sample_text(8, 6, 'a') + "\n"),
8437 vec![Point::new(1, 0)..Point::new(3, 0)],
8438 ),
8439 ],
8440 cx,
8441 );
8442 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8443 });
8444 let editor = window.root(cx).unwrap();
8445 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8446 let _state = window.update(cx, |editor, window, cx| {
8447 editor.cursor_shape = CursorShape::Block;
8448 editor.change_selections(None, window, cx, |s| {
8449 s.select_display_ranges([
8450 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8451 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8452 ]);
8453 });
8454 });
8455
8456 let (_, state) = cx.draw(
8457 point(px(500.), px(500.)),
8458 size(px(500.), px(500.)),
8459 |_, _| EditorElement::new(&editor, style),
8460 );
8461 assert_eq!(state.selections.len(), 1);
8462 let local_selections = &state.selections[0].1;
8463 assert_eq!(local_selections.len(), 2);
8464
8465 // moves cursor on excerpt boundary back a line
8466 // and doesn't allow selection to bleed through
8467 assert_eq!(
8468 local_selections[0].range,
8469 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8470 );
8471 assert_eq!(
8472 local_selections[0].head,
8473 DisplayPoint::new(DisplayRow(6), 0)
8474 );
8475 // moves cursor on buffer boundary back two lines
8476 // and doesn't allow selection to bleed through
8477 assert_eq!(
8478 local_selections[1].range,
8479 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8480 );
8481 assert_eq!(
8482 local_selections[1].head,
8483 DisplayPoint::new(DisplayRow(12), 0)
8484 );
8485 }
8486
8487 #[gpui::test]
8488 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8489 init_test(cx, |_| {});
8490
8491 let window = cx.add_window(|window, cx| {
8492 let buffer = MultiBuffer::build_simple("", cx);
8493 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8494 });
8495 let cx = &mut VisualTestContext::from_window(*window, cx);
8496 let editor = window.root(cx).unwrap();
8497 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8498 window
8499 .update(cx, |editor, window, cx| {
8500 editor.set_placeholder_text("hello", cx);
8501 editor.insert_blocks(
8502 [BlockProperties {
8503 style: BlockStyle::Fixed,
8504 placement: BlockPlacement::Above(Anchor::min()),
8505 height: 3,
8506 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8507 priority: 0,
8508 }],
8509 None,
8510 cx,
8511 );
8512
8513 // Blur the editor so that it displays placeholder text.
8514 window.blur();
8515 })
8516 .unwrap();
8517
8518 let (_, state) = cx.draw(
8519 point(px(500.), px(500.)),
8520 size(px(500.), px(500.)),
8521 |_, _| EditorElement::new(&editor, style),
8522 );
8523 assert_eq!(state.position_map.line_layouts.len(), 4);
8524 assert_eq!(state.line_numbers.len(), 1);
8525 assert_eq!(
8526 state
8527 .line_numbers
8528 .get(&MultiBufferRow(0))
8529 .map(|line_number| line_number.shaped_line.text.as_ref()),
8530 Some("1")
8531 );
8532 }
8533
8534 #[gpui::test]
8535 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8536 const TAB_SIZE: u32 = 4;
8537
8538 let input_text = "\t \t|\t| a b";
8539 let expected_invisibles = vec![
8540 Invisible::Tab {
8541 line_start_offset: 0,
8542 line_end_offset: TAB_SIZE as usize,
8543 },
8544 Invisible::Whitespace {
8545 line_offset: TAB_SIZE as usize,
8546 },
8547 Invisible::Tab {
8548 line_start_offset: TAB_SIZE as usize + 1,
8549 line_end_offset: TAB_SIZE as usize * 2,
8550 },
8551 Invisible::Tab {
8552 line_start_offset: TAB_SIZE as usize * 2 + 1,
8553 line_end_offset: TAB_SIZE as usize * 3,
8554 },
8555 Invisible::Whitespace {
8556 line_offset: TAB_SIZE as usize * 3 + 1,
8557 },
8558 Invisible::Whitespace {
8559 line_offset: TAB_SIZE as usize * 3 + 3,
8560 },
8561 ];
8562 assert_eq!(
8563 expected_invisibles.len(),
8564 input_text
8565 .chars()
8566 .filter(|initial_char| initial_char.is_whitespace())
8567 .count(),
8568 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8569 );
8570
8571 for show_line_numbers in [true, false] {
8572 init_test(cx, |s| {
8573 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8574 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8575 });
8576
8577 let actual_invisibles = collect_invisibles_from_new_editor(
8578 cx,
8579 EditorMode::Full,
8580 input_text,
8581 px(500.0),
8582 show_line_numbers,
8583 );
8584
8585 assert_eq!(expected_invisibles, actual_invisibles);
8586 }
8587 }
8588
8589 #[gpui::test]
8590 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8591 init_test(cx, |s| {
8592 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8593 s.defaults.tab_size = NonZeroU32::new(4);
8594 });
8595
8596 for editor_mode_without_invisibles in [
8597 EditorMode::SingleLine { auto_width: false },
8598 EditorMode::AutoHeight { max_lines: 100 },
8599 ] {
8600 for show_line_numbers in [true, false] {
8601 let invisibles = collect_invisibles_from_new_editor(
8602 cx,
8603 editor_mode_without_invisibles,
8604 "\t\t\t| | a b",
8605 px(500.0),
8606 show_line_numbers,
8607 );
8608 assert!(invisibles.is_empty(),
8609 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8610 }
8611 }
8612 }
8613
8614 #[gpui::test]
8615 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8616 let tab_size = 4;
8617 let input_text = "a\tbcd ".repeat(9);
8618 let repeated_invisibles = [
8619 Invisible::Tab {
8620 line_start_offset: 1,
8621 line_end_offset: tab_size as usize,
8622 },
8623 Invisible::Whitespace {
8624 line_offset: tab_size as usize + 3,
8625 },
8626 Invisible::Whitespace {
8627 line_offset: tab_size as usize + 4,
8628 },
8629 Invisible::Whitespace {
8630 line_offset: tab_size as usize + 5,
8631 },
8632 Invisible::Whitespace {
8633 line_offset: tab_size as usize + 6,
8634 },
8635 Invisible::Whitespace {
8636 line_offset: tab_size as usize + 7,
8637 },
8638 ];
8639 let expected_invisibles = std::iter::once(repeated_invisibles)
8640 .cycle()
8641 .take(9)
8642 .flatten()
8643 .collect::<Vec<_>>();
8644 assert_eq!(
8645 expected_invisibles.len(),
8646 input_text
8647 .chars()
8648 .filter(|initial_char| initial_char.is_whitespace())
8649 .count(),
8650 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8651 );
8652 info!("Expected invisibles: {expected_invisibles:?}");
8653
8654 init_test(cx, |_| {});
8655
8656 // Put the same string with repeating whitespace pattern into editors of various size,
8657 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8658 let resize_step = 10.0;
8659 let mut editor_width = 200.0;
8660 while editor_width <= 1000.0 {
8661 for show_line_numbers in [true, false] {
8662 update_test_language_settings(cx, |s| {
8663 s.defaults.tab_size = NonZeroU32::new(tab_size);
8664 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8665 s.defaults.preferred_line_length = Some(editor_width as u32);
8666 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8667 });
8668
8669 let actual_invisibles = collect_invisibles_from_new_editor(
8670 cx,
8671 EditorMode::Full,
8672 &input_text,
8673 px(editor_width),
8674 show_line_numbers,
8675 );
8676
8677 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8678 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8679 let mut i = 0;
8680 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8681 i = actual_index;
8682 match expected_invisibles.get(i) {
8683 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8684 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8685 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8686 _ => {
8687 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8688 }
8689 },
8690 None => {
8691 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8692 }
8693 }
8694 }
8695 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8696 assert!(
8697 missing_expected_invisibles.is_empty(),
8698 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8699 );
8700
8701 editor_width += resize_step;
8702 }
8703 }
8704 }
8705
8706 fn collect_invisibles_from_new_editor(
8707 cx: &mut TestAppContext,
8708 editor_mode: EditorMode,
8709 input_text: &str,
8710 editor_width: Pixels,
8711 show_line_numbers: bool,
8712 ) -> Vec<Invisible> {
8713 info!(
8714 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8715 editor_width.0
8716 );
8717 let window = cx.add_window(|window, cx| {
8718 let buffer = MultiBuffer::build_simple(input_text, cx);
8719 Editor::new(editor_mode, buffer, None, true, window, cx)
8720 });
8721 let cx = &mut VisualTestContext::from_window(*window, cx);
8722 let editor = window.root(cx).unwrap();
8723
8724 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8725 window
8726 .update(cx, |editor, _, cx| {
8727 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8728 editor.set_wrap_width(Some(editor_width), cx);
8729 editor.set_show_line_numbers(show_line_numbers, cx);
8730 })
8731 .unwrap();
8732 let (_, state) = cx.draw(
8733 point(px(500.), px(500.)),
8734 size(px(500.), px(500.)),
8735 |_, _| EditorElement::new(&editor, style),
8736 );
8737 state
8738 .position_map
8739 .line_layouts
8740 .iter()
8741 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8742 .cloned()
8743 .collect()
8744 }
8745}
8746
8747fn diff_hunk_controls(
8748 row: u32,
8749 status: &DiffHunkStatus,
8750 hunk_range: Range<Anchor>,
8751 line_height: Pixels,
8752 editor: &Entity<Editor>,
8753 cx: &mut App,
8754) -> AnyElement {
8755 h_flex()
8756 .h(line_height)
8757 .mr_1()
8758 .gap_1()
8759 .px_1()
8760 .pb_1()
8761 .border_b_1()
8762 .border_color(cx.theme().colors().border_variant)
8763 .rounded_b_lg()
8764 .bg(cx.theme().colors().editor_background)
8765 .gap_1()
8766 .when(status.secondary == DiffHunkSecondaryStatus::None, |el| {
8767 el.child(
8768 Button::new("unstage", "Unstage")
8769 .tooltip({
8770 let focus_handle = editor.focus_handle(cx);
8771 move |window, cx| {
8772 Tooltip::for_action_in(
8773 "Unstage Hunk",
8774 &::git::ToggleStaged,
8775 &focus_handle,
8776 window,
8777 cx,
8778 )
8779 }
8780 })
8781 .on_click({
8782 let editor = editor.clone();
8783 move |_event, window, cx| {
8784 editor.update(cx, |editor, cx| {
8785 editor.stage_or_unstage_diff_hunks(
8786 false,
8787 &[hunk_range.start..hunk_range.start],
8788 window,
8789 cx,
8790 );
8791 });
8792 }
8793 }),
8794 )
8795 })
8796 .when(status.secondary != DiffHunkSecondaryStatus::None, |el| {
8797 el.child(
8798 Button::new("stage", "Stage")
8799 .tooltip({
8800 let focus_handle = editor.focus_handle(cx);
8801 move |window, cx| {
8802 Tooltip::for_action_in(
8803 "Stage Hunk",
8804 &::git::ToggleStaged,
8805 &focus_handle,
8806 window,
8807 cx,
8808 )
8809 }
8810 })
8811 .on_click({
8812 let editor = editor.clone();
8813 move |_event, window, cx| {
8814 editor.update(cx, |editor, cx| {
8815 editor.stage_or_unstage_diff_hunks(
8816 true,
8817 &[hunk_range.start..hunk_range.start],
8818 window,
8819 cx,
8820 );
8821 });
8822 }
8823 }),
8824 )
8825 })
8826 .child(
8827 Button::new("discard", "Restore")
8828 .tooltip({
8829 let focus_handle = editor.focus_handle(cx);
8830 move |window, cx| {
8831 Tooltip::for_action_in(
8832 "Restore Hunk",
8833 &::git::Restore,
8834 &focus_handle,
8835 window,
8836 cx,
8837 )
8838 }
8839 })
8840 .on_click({
8841 let editor = editor.clone();
8842 move |_event, window, cx| {
8843 editor.update(cx, |editor, cx| {
8844 let snapshot = editor.snapshot(window, cx);
8845 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8846 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8847 });
8848 }
8849 }),
8850 )
8851 .when(
8852 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8853 |el| {
8854 el.child(
8855 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8856 .shape(IconButtonShape::Square)
8857 .icon_size(IconSize::Small)
8858 // .disabled(!has_multiple_hunks)
8859 .tooltip({
8860 let focus_handle = editor.focus_handle(cx);
8861 move |window, cx| {
8862 Tooltip::for_action_in(
8863 "Next Hunk",
8864 &GoToHunk,
8865 &focus_handle,
8866 window,
8867 cx,
8868 )
8869 }
8870 })
8871 .on_click({
8872 let editor = editor.clone();
8873 move |_event, window, cx| {
8874 editor.update(cx, |editor, cx| {
8875 let snapshot = editor.snapshot(window, cx);
8876 let position =
8877 hunk_range.end.to_point(&snapshot.buffer_snapshot);
8878 editor
8879 .go_to_hunk_after_position(&snapshot, position, window, cx);
8880 editor.expand_selected_diff_hunks(cx);
8881 });
8882 }
8883 }),
8884 )
8885 .child(
8886 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8887 .shape(IconButtonShape::Square)
8888 .icon_size(IconSize::Small)
8889 // .disabled(!has_multiple_hunks)
8890 .tooltip({
8891 let focus_handle = editor.focus_handle(cx);
8892 move |window, cx| {
8893 Tooltip::for_action_in(
8894 "Previous Hunk",
8895 &GoToPrevHunk,
8896 &focus_handle,
8897 window,
8898 cx,
8899 )
8900 }
8901 })
8902 .on_click({
8903 let editor = editor.clone();
8904 move |_event, window, cx| {
8905 editor.update(cx, |editor, cx| {
8906 let snapshot = editor.snapshot(window, cx);
8907 let point =
8908 hunk_range.start.to_point(&snapshot.buffer_snapshot);
8909 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8910 editor.expand_selected_diff_hunks(cx);
8911 });
8912 }
8913 }),
8914 )
8915 },
8916 )
8917 .into_any_element()
8918}