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 GoToPreviousHunk, 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::{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::backtab);
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, action, window, cx| {
433 if let Some(task) = editor.organize_imports(action, window, cx) {
434 task.detach_and_notify_err(window, cx);
435 } else {
436 cx.propagate();
437 }
438 });
439 register_action(editor, window, Editor::restart_language_server);
440 register_action(editor, window, Editor::show_character_palette);
441 register_action(editor, window, |editor, action, window, cx| {
442 if let Some(task) = editor.confirm_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.compose_completion(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.confirm_code_action(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.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.confirm_rename(action, window, cx) {
471 task.detach_and_notify_err(window, cx);
472 } else {
473 cx.propagate();
474 }
475 });
476 register_action(editor, window, |editor, action, window, cx| {
477 if let Some(task) = editor.find_all_references(action, window, cx) {
478 task.detach_and_log_err(cx);
479 } else {
480 cx.propagate();
481 }
482 });
483 register_action(editor, window, Editor::show_signature_help);
484 register_action(editor, window, Editor::next_edit_prediction);
485 register_action(editor, window, Editor::previous_edit_prediction);
486 register_action(editor, window, Editor::show_inline_completion);
487 register_action(editor, window, Editor::context_menu_first);
488 register_action(editor, window, Editor::context_menu_prev);
489 register_action(editor, window, Editor::context_menu_next);
490 register_action(editor, window, Editor::context_menu_last);
491 register_action(editor, window, Editor::display_cursor_names);
492 register_action(editor, window, Editor::unique_lines_case_insensitive);
493 register_action(editor, window, Editor::unique_lines_case_sensitive);
494 register_action(editor, window, Editor::accept_partial_inline_completion);
495 register_action(editor, window, Editor::accept_edit_prediction);
496 register_action(editor, window, Editor::restore_file);
497 register_action(editor, window, Editor::git_restore);
498 register_action(editor, window, Editor::apply_all_diff_hunks);
499 register_action(editor, window, Editor::apply_selected_diff_hunks);
500 register_action(editor, window, Editor::open_active_item_in_terminal);
501 register_action(editor, window, Editor::reload_file);
502 register_action(editor, window, Editor::spawn_nearest_task);
503 register_action(editor, window, Editor::insert_uuid_v4);
504 register_action(editor, window, Editor::insert_uuid_v7);
505 register_action(editor, window, Editor::open_selections_in_multibuffer);
506 }
507
508 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
509 let position_map = layout.position_map.clone();
510 window.on_key_event({
511 let editor = self.editor.clone();
512 move |event: &ModifiersChangedEvent, phase, window, cx| {
513 if phase != DispatchPhase::Bubble {
514 return;
515 }
516 editor.update(cx, |editor, cx| {
517 let inlay_hint_settings = inlay_hint_settings(
518 editor.selections.newest_anchor().head(),
519 &editor.buffer.read(cx).snapshot(cx),
520 cx,
521 );
522
523 if let Some(inlay_modifiers) = inlay_hint_settings
524 .toggle_on_modifiers_press
525 .as_ref()
526 .filter(|modifiers| modifiers.modified())
527 {
528 editor.refresh_inlay_hints(
529 InlayHintRefreshReason::ModifiersChanged(
530 inlay_modifiers == &event.modifiers,
531 ),
532 cx,
533 );
534 }
535
536 if editor.hover_state.focused(window, cx) {
537 return;
538 }
539
540 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
541 })
542 }
543 });
544 }
545
546 fn mouse_left_down(
547 editor: &mut Editor,
548 event: &MouseDownEvent,
549 hovered_hunk: Option<Range<Anchor>>,
550 position_map: &PositionMap,
551 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
552 window: &mut Window,
553 cx: &mut Context<Editor>,
554 ) {
555 if window.default_prevented() {
556 return;
557 }
558
559 let text_hitbox = &position_map.text_hitbox;
560 let gutter_hitbox = &position_map.gutter_hitbox;
561 let mut click_count = event.click_count;
562 let mut modifiers = event.modifiers;
563
564 if let Some(hovered_hunk) = hovered_hunk {
565 editor.toggle_single_diff_hunk(hovered_hunk, cx);
566 cx.notify();
567 return;
568 } else if gutter_hitbox.is_hovered(window) {
569 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
570 } else if !text_hitbox.is_hovered(window) {
571 return;
572 }
573
574 let is_singleton = editor.buffer().read(cx).is_singleton();
575
576 if click_count == 2 && !is_singleton {
577 match EditorSettings::get_global(cx).double_click_in_multibuffer {
578 DoubleClickInMultibuffer::Select => {
579 // do nothing special on double click, all selection logic is below
580 }
581 DoubleClickInMultibuffer::Open => {
582 if modifiers.alt {
583 // if double click is made with alt, pretend it's a regular double click without opening and alt,
584 // and run the selection logic.
585 modifiers.alt = false;
586 } else {
587 let scroll_position_row =
588 position_map.scroll_pixel_position.y / position_map.line_height;
589 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
590 + position_map.scroll_pixel_position.y)
591 / position_map.line_height)
592 as u32;
593 let multi_buffer_row = position_map
594 .snapshot
595 .display_point_to_point(
596 DisplayPoint::new(DisplayRow(display_row), 0),
597 Bias::Right,
598 )
599 .row;
600 let line_offset_from_top = display_row - scroll_position_row as u32;
601 // if double click is made without alt, open the corresponding excerp
602 editor.open_excerpts_common(
603 Some(JumpData::MultiBufferRow {
604 row: MultiBufferRow(multi_buffer_row),
605 line_offset_from_top,
606 }),
607 false,
608 window,
609 cx,
610 );
611 return;
612 }
613 }
614 }
615 }
616
617 let point_for_position = position_map.point_for_position(event.position);
618 let position = point_for_position.previous_valid;
619 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
620 editor.select(
621 SelectPhase::BeginColumnar {
622 position,
623 reset: false,
624 goal_column: point_for_position.exact_unclipped.column(),
625 },
626 window,
627 cx,
628 );
629 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
630 {
631 editor.select(
632 SelectPhase::Extend {
633 position,
634 click_count,
635 },
636 window,
637 cx,
638 );
639 } else {
640 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
641 let multi_cursor_modifier = match multi_cursor_setting {
642 MultiCursorModifier::Alt => modifiers.alt,
643 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
644 };
645 editor.select(
646 SelectPhase::Begin {
647 position,
648 add: multi_cursor_modifier,
649 click_count,
650 },
651 window,
652 cx,
653 );
654 }
655 cx.stop_propagation();
656
657 if !is_singleton {
658 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
659 + position_map.scroll_pixel_position.y)
660 / position_map.line_height) as u32;
661 let multi_buffer_row = position_map
662 .snapshot
663 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
664 .row;
665 if line_numbers
666 .get(&MultiBufferRow(multi_buffer_row))
667 .and_then(|line_number| line_number.hitbox.as_ref())
668 .is_some_and(|hitbox| hitbox.contains(&event.position))
669 {
670 let scroll_position_row =
671 position_map.scroll_pixel_position.y / position_map.line_height;
672 let line_offset_from_top = display_row - scroll_position_row as u32;
673
674 editor.open_excerpts_common(
675 Some(JumpData::MultiBufferRow {
676 row: MultiBufferRow(multi_buffer_row),
677 line_offset_from_top,
678 }),
679 modifiers.alt,
680 window,
681 cx,
682 );
683 cx.stop_propagation();
684 }
685 }
686 }
687
688 fn mouse_right_down(
689 editor: &mut Editor,
690 event: &MouseDownEvent,
691 position_map: &PositionMap,
692 window: &mut Window,
693 cx: &mut Context<Editor>,
694 ) {
695 if !position_map.text_hitbox.is_hovered(window) {
696 return;
697 }
698 let point_for_position = position_map.point_for_position(event.position);
699 mouse_context_menu::deploy_context_menu(
700 editor,
701 Some(event.position),
702 point_for_position.previous_valid,
703 window,
704 cx,
705 );
706 cx.stop_propagation();
707 }
708
709 fn mouse_middle_down(
710 editor: &mut Editor,
711 event: &MouseDownEvent,
712 position_map: &PositionMap,
713 window: &mut Window,
714 cx: &mut Context<Editor>,
715 ) {
716 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
717 return;
718 }
719
720 let point_for_position = position_map.point_for_position(event.position);
721 let position = point_for_position.previous_valid;
722
723 editor.select(
724 SelectPhase::BeginColumnar {
725 position,
726 reset: true,
727 goal_column: point_for_position.exact_unclipped.column(),
728 },
729 window,
730 cx,
731 );
732 }
733
734 fn mouse_up(
735 editor: &mut Editor,
736 event: &MouseUpEvent,
737 position_map: &PositionMap,
738 window: &mut Window,
739 cx: &mut Context<Editor>,
740 ) {
741 let text_hitbox = &position_map.text_hitbox;
742 let end_selection = editor.has_pending_selection();
743 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
744
745 if end_selection {
746 editor.select(SelectPhase::End, window, cx);
747 }
748
749 if end_selection && pending_nonempty_selections {
750 cx.stop_propagation();
751 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
752 && event.button == MouseButton::Middle
753 {
754 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
755 return;
756 }
757
758 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
759 if EditorSettings::get_global(cx).middle_click_paste {
760 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
761 let point_for_position = position_map.point_for_position(event.position);
762 let position = point_for_position.previous_valid;
763
764 editor.select(
765 SelectPhase::Begin {
766 position,
767 add: false,
768 click_count: 1,
769 },
770 window,
771 cx,
772 );
773 editor.insert(&text, window, cx);
774 }
775 cx.stop_propagation()
776 }
777 }
778 }
779
780 fn click(
781 editor: &mut Editor,
782 event: &ClickEvent,
783 position_map: &PositionMap,
784 window: &mut Window,
785 cx: &mut Context<Editor>,
786 ) {
787 let text_hitbox = &position_map.text_hitbox;
788 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
789
790 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
791 let multi_cursor_modifier = match multi_cursor_setting {
792 MultiCursorModifier::Alt => event.modifiers().secondary(),
793 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
794 };
795
796 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
797 let point = position_map.point_for_position(event.up.position);
798 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
799
800 cx.stop_propagation();
801 }
802 }
803
804 fn mouse_dragged(
805 editor: &mut Editor,
806 event: &MouseMoveEvent,
807 position_map: &PositionMap,
808 window: &mut Window,
809 cx: &mut Context<Editor>,
810 ) {
811 if !editor.has_pending_selection() {
812 return;
813 }
814
815 let text_bounds = position_map.text_hitbox.bounds;
816 let point_for_position = position_map.point_for_position(event.position);
817 let mut scroll_delta = gpui::Point::<f32>::default();
818 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
819 let top = text_bounds.origin.y + vertical_margin;
820 let bottom = text_bounds.bottom_left().y - vertical_margin;
821 if event.position.y < top {
822 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
823 }
824 if event.position.y > bottom {
825 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
826 }
827
828 // We need horizontal width of text
829 let style = editor.style.clone().unwrap_or_default();
830 let font_id = window.text_system().resolve_font(&style.text.font());
831 let font_size = style.text.font_size.to_pixels(window.rem_size());
832 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
833
834 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
835
836 let scroll_space: Pixels = scroll_margin_x * em_width;
837
838 let left = text_bounds.origin.x + scroll_space;
839 let right = text_bounds.top_right().x - scroll_space;
840
841 if event.position.x < left {
842 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
843 }
844 if event.position.x > right {
845 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
846 }
847
848 editor.select(
849 SelectPhase::Update {
850 position: point_for_position.previous_valid,
851 goal_column: point_for_position.exact_unclipped.column(),
852 scroll_delta,
853 },
854 window,
855 cx,
856 );
857 }
858
859 fn mouse_moved(
860 editor: &mut Editor,
861 event: &MouseMoveEvent,
862 position_map: &PositionMap,
863 window: &mut Window,
864 cx: &mut Context<Editor>,
865 ) {
866 let text_hitbox = &position_map.text_hitbox;
867 let gutter_hitbox = &position_map.gutter_hitbox;
868 let modifiers = event.modifiers;
869 let gutter_hovered = gutter_hitbox.is_hovered(window);
870 editor.set_gutter_hovered(gutter_hovered, cx);
871
872 // Don't trigger hover popover if mouse is hovering over context menu
873 if text_hitbox.is_hovered(window) {
874 let point_for_position = position_map.point_for_position(event.position);
875
876 editor.update_hovered_link(
877 point_for_position,
878 &position_map.snapshot,
879 modifiers,
880 window,
881 cx,
882 );
883
884 if let Some(point) = point_for_position.as_valid() {
885 let anchor = position_map
886 .snapshot
887 .buffer_snapshot
888 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
889 hover_at(editor, Some(anchor), window, cx);
890 Self::update_visible_cursor(editor, point, position_map, window, cx);
891 } else {
892 hover_at(editor, None, window, cx);
893 }
894 } else {
895 editor.hide_hovered_link(cx);
896 hover_at(editor, None, window, cx);
897 if gutter_hovered {
898 cx.stop_propagation();
899 }
900 }
901 }
902
903 fn update_visible_cursor(
904 editor: &mut Editor,
905 point: DisplayPoint,
906 position_map: &PositionMap,
907 window: &mut Window,
908 cx: &mut Context<Editor>,
909 ) {
910 let snapshot = &position_map.snapshot;
911 let Some(hub) = editor.collaboration_hub() else {
912 return;
913 };
914 let start = snapshot.display_snapshot.clip_point(
915 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
916 Bias::Left,
917 );
918 let end = snapshot.display_snapshot.clip_point(
919 DisplayPoint::new(
920 point.row(),
921 (point.column() + 1).min(snapshot.line_len(point.row())),
922 ),
923 Bias::Right,
924 );
925
926 let range = snapshot
927 .buffer_snapshot
928 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
929 ..snapshot
930 .buffer_snapshot
931 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
932
933 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
934 return;
935 };
936 let key = crate::HoveredCursor {
937 replica_id: selection.replica_id,
938 selection_id: selection.selection.id,
939 };
940 editor.hovered_cursors.insert(
941 key.clone(),
942 cx.spawn_in(window, |editor, mut cx| async move {
943 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
944 editor
945 .update(&mut cx, |editor, cx| {
946 editor.hovered_cursors.remove(&key);
947 cx.notify();
948 })
949 .ok();
950 }),
951 );
952 cx.notify()
953 }
954
955 #[allow(clippy::too_many_arguments)]
956 fn layout_selections(
957 &self,
958 start_anchor: Anchor,
959 end_anchor: Anchor,
960 local_selections: &[Selection<Point>],
961 snapshot: &EditorSnapshot,
962 start_row: DisplayRow,
963 end_row: DisplayRow,
964 window: &mut Window,
965 cx: &mut App,
966 ) -> (
967 Vec<(PlayerColor, Vec<SelectionLayout>)>,
968 BTreeMap<DisplayRow, bool>,
969 Option<DisplayPoint>,
970 ) {
971 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
972 let mut active_rows = BTreeMap::new();
973 let mut newest_selection_head = None;
974 self.editor.update(cx, |editor, cx| {
975 if editor.show_local_selections {
976 let mut layouts = Vec::new();
977 let newest = editor.selections.newest(cx);
978 for selection in local_selections.iter().cloned() {
979 let is_empty = selection.start == selection.end;
980 let is_newest = selection == newest;
981
982 let layout = SelectionLayout::new(
983 selection,
984 editor.selections.line_mode,
985 editor.cursor_shape,
986 &snapshot.display_snapshot,
987 is_newest,
988 editor.leader_peer_id.is_none(),
989 None,
990 );
991 if is_newest {
992 newest_selection_head = Some(layout.head);
993 }
994
995 for row in cmp::max(layout.active_rows.start.0, start_row.0)
996 ..=cmp::min(layout.active_rows.end.0, end_row.0)
997 {
998 let contains_non_empty_selection =
999 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
1000 *contains_non_empty_selection |= !is_empty;
1001 }
1002 layouts.push(layout);
1003 }
1004
1005 let player = editor.current_user_player_color(cx);
1006 selections.push((player, layouts));
1007 }
1008
1009 if let Some(collaboration_hub) = &editor.collaboration_hub {
1010 // When following someone, render the local selections in their color.
1011 if let Some(leader_id) = editor.leader_peer_id {
1012 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1013 {
1014 if let Some(participant_index) = collaboration_hub
1015 .user_participant_indices(cx)
1016 .get(&collaborator.user_id)
1017 {
1018 if let Some((local_selection_style, _)) = selections.first_mut() {
1019 *local_selection_style = cx
1020 .theme()
1021 .players()
1022 .color_for_participant(participant_index.0);
1023 }
1024 }
1025 }
1026 }
1027
1028 let mut remote_selections = HashMap::default();
1029 for selection in snapshot.remote_selections_in_range(
1030 &(start_anchor..end_anchor),
1031 collaboration_hub.as_ref(),
1032 cx,
1033 ) {
1034 let selection_style =
1035 Self::get_participant_color(selection.participant_index, cx);
1036
1037 // Don't re-render the leader's selections, since the local selections
1038 // match theirs.
1039 if Some(selection.peer_id) == editor.leader_peer_id {
1040 continue;
1041 }
1042 let key = HoveredCursor {
1043 replica_id: selection.replica_id,
1044 selection_id: selection.selection.id,
1045 };
1046
1047 let is_shown =
1048 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1049
1050 remote_selections
1051 .entry(selection.replica_id)
1052 .or_insert((selection_style, Vec::new()))
1053 .1
1054 .push(SelectionLayout::new(
1055 selection.selection,
1056 selection.line_mode,
1057 selection.cursor_shape,
1058 &snapshot.display_snapshot,
1059 false,
1060 false,
1061 if is_shown { selection.user_name } else { None },
1062 ));
1063 }
1064
1065 selections.extend(remote_selections.into_values());
1066 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1067 let layouts = snapshot
1068 .buffer_snapshot
1069 .selections_in_range(&(start_anchor..end_anchor), true)
1070 .map(move |(_, line_mode, cursor_shape, selection)| {
1071 SelectionLayout::new(
1072 selection,
1073 line_mode,
1074 cursor_shape,
1075 &snapshot.display_snapshot,
1076 false,
1077 false,
1078 None,
1079 )
1080 })
1081 .collect::<Vec<_>>();
1082 let player = editor.current_user_player_color(cx);
1083 selections.push((player, layouts));
1084 }
1085 });
1086 (selections, active_rows, newest_selection_head)
1087 }
1088
1089 fn collect_cursors(
1090 &self,
1091 snapshot: &EditorSnapshot,
1092 cx: &mut App,
1093 ) -> Vec<(DisplayPoint, Hsla)> {
1094 let editor = self.editor.read(cx);
1095 let mut cursors = Vec::new();
1096 let mut skip_local = false;
1097 let mut add_cursor = |anchor: Anchor, color| {
1098 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1099 };
1100 // Remote cursors
1101 if let Some(collaboration_hub) = &editor.collaboration_hub {
1102 for remote_selection in snapshot.remote_selections_in_range(
1103 &(Anchor::min()..Anchor::max()),
1104 collaboration_hub.deref(),
1105 cx,
1106 ) {
1107 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1108 add_cursor(remote_selection.selection.head(), color.cursor);
1109 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1110 skip_local = true;
1111 }
1112 }
1113 }
1114 // Local cursors
1115 if !skip_local {
1116 let color = cx.theme().players().local().cursor;
1117 editor.selections.disjoint.iter().for_each(|selection| {
1118 add_cursor(selection.head(), color);
1119 });
1120 if let Some(ref selection) = editor.selections.pending_anchor() {
1121 add_cursor(selection.head(), color);
1122 }
1123 }
1124 cursors
1125 }
1126
1127 #[allow(clippy::too_many_arguments)]
1128 fn layout_visible_cursors(
1129 &self,
1130 snapshot: &EditorSnapshot,
1131 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1132 block_start_rows: &HashSet<DisplayRow>,
1133 visible_display_row_range: Range<DisplayRow>,
1134 line_layouts: &[LineWithInvisibles],
1135 text_hitbox: &Hitbox,
1136 content_origin: gpui::Point<Pixels>,
1137 scroll_position: gpui::Point<f32>,
1138 scroll_pixel_position: gpui::Point<Pixels>,
1139 line_height: Pixels,
1140 em_width: Pixels,
1141 em_advance: Pixels,
1142 autoscroll_containing_element: bool,
1143 window: &mut Window,
1144 cx: &mut App,
1145 ) -> Vec<CursorLayout> {
1146 let mut autoscroll_bounds = None;
1147 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1148 let mut cursors = Vec::new();
1149
1150 let show_local_cursors = editor.show_local_cursors(window, cx);
1151
1152 for (player_color, selections) in selections {
1153 for selection in selections {
1154 let cursor_position = selection.head;
1155
1156 let in_range = visible_display_row_range.contains(&cursor_position.row());
1157 if (selection.is_local && !show_local_cursors)
1158 || !in_range
1159 || block_start_rows.contains(&cursor_position.row())
1160 {
1161 continue;
1162 }
1163
1164 let cursor_row_layout = &line_layouts
1165 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1166 let cursor_column = cursor_position.column() as usize;
1167
1168 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1169 let mut block_width =
1170 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1171 if block_width == Pixels::ZERO {
1172 block_width = em_advance;
1173 }
1174 let block_text = if let CursorShape::Block = selection.cursor_shape {
1175 snapshot
1176 .grapheme_at(cursor_position)
1177 .or_else(|| {
1178 if cursor_column == 0 {
1179 snapshot.placeholder_text().and_then(|s| {
1180 s.graphemes(true).next().map(|s| s.to_string().into())
1181 })
1182 } else {
1183 None
1184 }
1185 })
1186 .and_then(|text| {
1187 let len = text.len();
1188
1189 let font = cursor_row_layout
1190 .font_id_for_index(cursor_column)
1191 .and_then(|cursor_font_id| {
1192 window.text_system().get_font_for_id(cursor_font_id)
1193 })
1194 .unwrap_or(self.style.text.font());
1195
1196 // Invert the text color for the block cursor. Ensure that the text
1197 // color is opaque enough to be visible against the background color.
1198 //
1199 // 0.75 is an arbitrary threshold to determine if the background color is
1200 // opaque enough to use as a text color.
1201 //
1202 // TODO: In the future we should ensure themes have a `text_inverse` color.
1203 let color = if cx.theme().colors().editor_background.a < 0.75 {
1204 match cx.theme().appearance {
1205 Appearance::Dark => Hsla::black(),
1206 Appearance::Light => Hsla::white(),
1207 }
1208 } else {
1209 cx.theme().colors().editor_background
1210 };
1211
1212 window
1213 .text_system()
1214 .shape_line(
1215 text,
1216 cursor_row_layout.font_size,
1217 &[TextRun {
1218 len,
1219 font,
1220 color,
1221 background_color: None,
1222 strikethrough: None,
1223 underline: None,
1224 }],
1225 )
1226 .log_err()
1227 })
1228 } else {
1229 None
1230 };
1231
1232 let x = cursor_character_x - scroll_pixel_position.x;
1233 let y = (cursor_position.row().as_f32()
1234 - scroll_pixel_position.y / line_height)
1235 * line_height;
1236 if selection.is_newest {
1237 editor.pixel_position_of_newest_cursor = Some(point(
1238 text_hitbox.origin.x + x + block_width / 2.,
1239 text_hitbox.origin.y + y + line_height / 2.,
1240 ));
1241
1242 if autoscroll_containing_element {
1243 let top = text_hitbox.origin.y
1244 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1245 * line_height;
1246 let left = text_hitbox.origin.x
1247 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1248 .max(0.)
1249 * em_width;
1250
1251 let bottom = text_hitbox.origin.y
1252 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1253 * line_height;
1254 let right = text_hitbox.origin.x
1255 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1256 * em_width;
1257
1258 autoscroll_bounds =
1259 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1260 }
1261 }
1262
1263 let mut cursor = CursorLayout {
1264 color: player_color.cursor,
1265 block_width,
1266 origin: point(x, y),
1267 line_height,
1268 shape: selection.cursor_shape,
1269 block_text,
1270 cursor_name: None,
1271 };
1272 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1273 string: name,
1274 color: self.style.background,
1275 is_top_row: cursor_position.row().0 == 0,
1276 });
1277 cursor.layout(content_origin, cursor_name, window, cx);
1278 cursors.push(cursor);
1279 }
1280 }
1281
1282 cursors
1283 });
1284
1285 if let Some(bounds) = autoscroll_bounds {
1286 window.request_autoscroll(bounds);
1287 }
1288
1289 cursor_layouts
1290 }
1291
1292 fn layout_scrollbars(
1293 &self,
1294 snapshot: &EditorSnapshot,
1295 scrollbar_range_data: ScrollbarRangeData,
1296 scroll_position: gpui::Point<f32>,
1297 non_visible_cursors: bool,
1298 window: &mut Window,
1299 cx: &mut App,
1300 ) -> AxisPair<Option<ScrollbarLayout>> {
1301 let letter_size = scrollbar_range_data.letter_size;
1302 let text_units_per_page = axis_pair(
1303 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1304 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1305 );
1306
1307 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1308 let show_scrollbars = self.editor.read(cx).show_scrollbars
1309 && match scrollbar_settings.show {
1310 ShowScrollbar::Auto => {
1311 let editor = self.editor.read(cx);
1312 let is_singleton = editor.is_singleton(cx);
1313 // Git
1314 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1315 ||
1316 // Buffer Search Results
1317 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1318 ||
1319 // Selected Text Occurrences
1320 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1321 ||
1322 // Selected Symbol Occurrences
1323 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1324 ||
1325 // Diagnostics
1326 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1327 ||
1328 // Cursors out of sight
1329 non_visible_cursors
1330 ||
1331 // Scrollmanager
1332 editor.scroll_manager.scrollbars_visible()
1333 }
1334 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1335 ShowScrollbar::Always => true,
1336 ShowScrollbar::Never => false,
1337 };
1338
1339 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1340
1341 if snapshot.mode != EditorMode::Full {
1342 return axis_pair(None, None);
1343 }
1344
1345 let visible_range = axis_pair(
1346 axes.horizontal
1347 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1348 axes.vertical
1349 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1350 );
1351
1352 // If a drag took place after we started dragging the scrollbar,
1353 // cancel the scrollbar drag.
1354 if cx.has_active_drag() {
1355 self.editor.update(cx, |editor, cx| {
1356 editor
1357 .scroll_manager
1358 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1359 editor
1360 .scroll_manager
1361 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1362 });
1363 }
1364
1365 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1366
1367 let track_bounds = axis_pair(
1368 axes.horizontal.then(|| {
1369 Bounds::from_corners(
1370 point(
1371 text_bounds.bottom_left().x,
1372 text_bounds.bottom_left().y - self.style.scrollbar_width,
1373 ),
1374 point(
1375 text_bounds.bottom_right().x
1376 - if axes.vertical {
1377 self.style.scrollbar_width
1378 } else {
1379 px(0.)
1380 },
1381 text_bounds.bottom_right().y,
1382 ),
1383 )
1384 }),
1385 axes.vertical.then(|| {
1386 Bounds::from_corners(
1387 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1388 text_bounds.bottom_right(),
1389 )
1390 }),
1391 );
1392
1393 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1394 let total_text_units = axis_pair(
1395 Some(scroll_range_size.width / letter_size.width),
1396 Some(scroll_range_size.height / letter_size.height),
1397 );
1398
1399 let thumb_size = axis_pair(
1400 total_text_units
1401 .horizontal
1402 .zip(track_bounds.horizontal)
1403 .and_then(|(total_text_units_x, track_bounds_x)| {
1404 if text_units_per_page.horizontal >= total_text_units_x {
1405 return None;
1406 }
1407 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1408 return Some(track_bounds_x.size.width);
1409 }
1410 let thumb_size = track_bounds_x.size.width
1411 * (text_units_per_page.horizontal / total_text_units_x);
1412 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1413 }),
1414 total_text_units.vertical.zip(track_bounds.vertical).map(
1415 |(total_text_units_y, track_bounds_y)| {
1416 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1417 return track_bounds_y.size.height;
1418 }
1419 let thumb_size = track_bounds_y.size.height
1420 * (text_units_per_page.vertical / total_text_units_y);
1421 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1422 },
1423 ),
1424 );
1425
1426 // NOTE: Space not taken by track bounds divided by text units not on screen
1427 let text_unit_size = axis_pair(
1428 thumb_size
1429 .horizontal
1430 .zip(track_bounds.horizontal)
1431 .zip(total_text_units.horizontal)
1432 .map(|((thumb_size, track_bounds), total_text_units)| {
1433 (track_bounds.size.width - thumb_size)
1434 / (total_text_units - text_units_per_page.horizontal).max(0.)
1435 }),
1436 thumb_size
1437 .vertical
1438 .zip(track_bounds.vertical)
1439 .zip(total_text_units.vertical)
1440 .map(|((thumb_size, track_bounds), total_text_units)| {
1441 (track_bounds.size.height - thumb_size)
1442 / (total_text_units - text_units_per_page.vertical).max(0.)
1443 }),
1444 );
1445
1446 let horizontal_scrollbar = track_bounds
1447 .horizontal
1448 .zip(visible_range.horizontal)
1449 .zip(text_unit_size.horizontal)
1450 .zip(thumb_size.horizontal)
1451 .map(
1452 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1453 hitbox: window.insert_hitbox(track_bounds, false),
1454 visible_range,
1455 text_unit_size,
1456 visible: show_scrollbars,
1457 thumb_size,
1458 axis: Axis::Horizontal,
1459 },
1460 );
1461
1462 let vertical_scrollbar = track_bounds
1463 .vertical
1464 .zip(visible_range.vertical)
1465 .zip(text_unit_size.vertical)
1466 .zip(thumb_size.vertical)
1467 .map(
1468 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1469 hitbox: window.insert_hitbox(track_bounds, false),
1470 visible_range,
1471 text_unit_size,
1472 visible: show_scrollbars,
1473 thumb_size,
1474 axis: Axis::Vertical,
1475 },
1476 );
1477
1478 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1479 }
1480
1481 #[allow(clippy::too_many_arguments)]
1482 fn prepaint_crease_toggles(
1483 &self,
1484 crease_toggles: &mut [Option<AnyElement>],
1485 line_height: Pixels,
1486 gutter_dimensions: &GutterDimensions,
1487 gutter_settings: crate::editor_settings::Gutter,
1488 scroll_pixel_position: gpui::Point<Pixels>,
1489 gutter_hitbox: &Hitbox,
1490 window: &mut Window,
1491 cx: &mut App,
1492 ) {
1493 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1494 if let Some(crease_toggle) = crease_toggle {
1495 debug_assert!(gutter_settings.folds);
1496 let available_space = size(
1497 AvailableSpace::MinContent,
1498 AvailableSpace::Definite(line_height * 0.55),
1499 );
1500 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1501
1502 let position = point(
1503 gutter_dimensions.width - gutter_dimensions.right_padding,
1504 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1505 );
1506 let centering_offset = point(
1507 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1508 (line_height - crease_toggle_size.height) / 2.,
1509 );
1510 let origin = gutter_hitbox.origin + position + centering_offset;
1511 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1512 }
1513 }
1514 }
1515
1516 #[allow(clippy::too_many_arguments)]
1517 fn prepaint_crease_trailers(
1518 &self,
1519 trailers: Vec<Option<AnyElement>>,
1520 lines: &[LineWithInvisibles],
1521 line_height: Pixels,
1522 content_origin: gpui::Point<Pixels>,
1523 scroll_pixel_position: gpui::Point<Pixels>,
1524 em_width: Pixels,
1525 window: &mut Window,
1526 cx: &mut App,
1527 ) -> Vec<Option<CreaseTrailerLayout>> {
1528 trailers
1529 .into_iter()
1530 .enumerate()
1531 .map(|(ix, element)| {
1532 let mut element = element?;
1533 let available_space = size(
1534 AvailableSpace::MinContent,
1535 AvailableSpace::Definite(line_height),
1536 );
1537 let size = element.layout_as_root(available_space, window, cx);
1538
1539 let line = &lines[ix];
1540 let padding = if line.width == Pixels::ZERO {
1541 Pixels::ZERO
1542 } else {
1543 4. * em_width
1544 };
1545 let position = point(
1546 scroll_pixel_position.x + line.width + padding,
1547 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1548 );
1549 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1550 let origin = content_origin + position + centering_offset;
1551 element.prepaint_as_root(origin, available_space, window, cx);
1552 Some(CreaseTrailerLayout {
1553 element,
1554 bounds: Bounds::new(origin, size),
1555 })
1556 })
1557 .collect()
1558 }
1559
1560 // Folds contained in a hunk are ignored apart from shrinking visual size
1561 // If a fold contains any hunks then that fold line is marked as modified
1562 fn layout_gutter_diff_hunks(
1563 &self,
1564 line_height: Pixels,
1565 gutter_hitbox: &Hitbox,
1566 display_rows: Range<DisplayRow>,
1567 snapshot: &EditorSnapshot,
1568 window: &mut Window,
1569 cx: &mut App,
1570 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1571 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1572 let mut display_hunks = snapshot
1573 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1574 .map(|hunk| (hunk, None))
1575 .collect::<Vec<_>>();
1576 let git_gutter_setting = ProjectSettings::get_global(cx)
1577 .git
1578 .git_gutter
1579 .unwrap_or_default();
1580 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1581 for (hunk, hitbox) in &mut display_hunks {
1582 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1583 let hunk_bounds =
1584 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1585 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1586 }
1587 }
1588 }
1589
1590 display_hunks
1591 }
1592
1593 #[allow(clippy::too_many_arguments)]
1594 fn layout_inline_diagnostics(
1595 &self,
1596 line_layouts: &[LineWithInvisibles],
1597 crease_trailers: &[Option<CreaseTrailerLayout>],
1598 content_origin: gpui::Point<Pixels>,
1599 scroll_pixel_position: gpui::Point<Pixels>,
1600 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1601 start_row: DisplayRow,
1602 end_row: DisplayRow,
1603 line_height: Pixels,
1604 em_width: Pixels,
1605 style: &EditorStyle,
1606 window: &mut Window,
1607 cx: &mut App,
1608 ) -> HashMap<DisplayRow, AnyElement> {
1609 let max_severity = ProjectSettings::get_global(cx)
1610 .diagnostics
1611 .inline
1612 .max_severity
1613 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1614 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1615 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1616 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1617 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1618 });
1619
1620 let active_diagnostics_group = self
1621 .editor
1622 .read(cx)
1623 .active_diagnostics
1624 .as_ref()
1625 .map(|active_diagnostics| active_diagnostics.group_id);
1626
1627 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1628 let snapshot = editor.snapshot(window, cx);
1629 editor
1630 .inline_diagnostics
1631 .iter()
1632 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1633 .filter(|(_, diagnostic)| match active_diagnostics_group {
1634 Some(active_diagnostics_group) => {
1635 // Active diagnostics are all shown in the editor already, no need to display them inline
1636 diagnostic.group_id != active_diagnostics_group
1637 }
1638 None => true,
1639 })
1640 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1641 .skip_while(|(point, _)| point.row() < start_row)
1642 .take_while(|(point, _)| point.row() < end_row)
1643 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1644 acc.entry(point.row())
1645 .or_insert_with(Vec::new)
1646 .push(diagnostic);
1647 acc
1648 })
1649 });
1650
1651 if diagnostics_by_rows.is_empty() {
1652 return HashMap::default();
1653 }
1654
1655 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1656 &DiagnosticSeverity::ERROR => Color::Error,
1657 &DiagnosticSeverity::WARNING => Color::Warning,
1658 &DiagnosticSeverity::INFORMATION => Color::Info,
1659 &DiagnosticSeverity::HINT => Color::Hint,
1660 _ => Color::Error,
1661 };
1662
1663 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1664 let min_x = ProjectSettings::get_global(cx)
1665 .diagnostics
1666 .inline
1667 .min_column as f32
1668 * em_width;
1669
1670 let mut elements = HashMap::default();
1671 for (row, mut diagnostics) in diagnostics_by_rows {
1672 diagnostics.sort_by_key(|diagnostic| {
1673 (
1674 diagnostic.severity,
1675 std::cmp::Reverse(diagnostic.is_primary),
1676 diagnostic.start.row,
1677 diagnostic.start.column,
1678 )
1679 });
1680
1681 let Some(diagnostic_to_render) = diagnostics
1682 .iter()
1683 .find(|diagnostic| diagnostic.is_primary)
1684 .or_else(|| diagnostics.first())
1685 else {
1686 continue;
1687 };
1688
1689 let pos_y = content_origin.y
1690 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1691
1692 let window_ix = row.minus(start_row) as usize;
1693 let pos_x = {
1694 let crease_trailer_layout = &crease_trailers[window_ix];
1695 let line_layout = &line_layouts[window_ix];
1696
1697 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1698 crease_trailer.bounds.right()
1699 } else {
1700 content_origin.x - scroll_pixel_position.x + line_layout.width
1701 };
1702
1703 let padded_line = line_end + padding;
1704 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1705
1706 cmp::max(padded_line, min_start)
1707 };
1708
1709 let behind_inline_completion_popover = inline_completion_popover_origin
1710 .as_ref()
1711 .map_or(false, |inline_completion_popover_origin| {
1712 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1713 });
1714 let opacity = if behind_inline_completion_popover {
1715 0.5
1716 } else {
1717 1.0
1718 };
1719
1720 let mut element = h_flex()
1721 .id(("diagnostic", row.0))
1722 .h(line_height)
1723 .w_full()
1724 .px_1()
1725 .rounded_sm()
1726 .opacity(opacity)
1727 .bg(severity_to_color(&diagnostic_to_render.severity)
1728 .color(cx)
1729 .opacity(0.05))
1730 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1731 .text_sm()
1732 .font_family(style.text.font().family)
1733 .child(diagnostic_to_render.message.clone())
1734 .into_any();
1735
1736 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1737
1738 elements.insert(row, element);
1739 }
1740
1741 elements
1742 }
1743
1744 #[allow(clippy::too_many_arguments)]
1745 fn layout_inline_blame(
1746 &self,
1747 display_row: DisplayRow,
1748 row_info: &RowInfo,
1749 line_layout: &LineWithInvisibles,
1750 crease_trailer: Option<&CreaseTrailerLayout>,
1751 em_width: Pixels,
1752 content_origin: gpui::Point<Pixels>,
1753 scroll_pixel_position: gpui::Point<Pixels>,
1754 line_height: Pixels,
1755 window: &mut Window,
1756 cx: &mut App,
1757 ) -> Option<AnyElement> {
1758 if !self
1759 .editor
1760 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1761 {
1762 return None;
1763 }
1764
1765 let editor = self.editor.read(cx);
1766 let blame = editor.blame.clone()?;
1767 let padding = {
1768 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1769 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1770
1771 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1772
1773 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1774 match &inline_completion.completion {
1775 InlineCompletion::Edit {
1776 display_mode: EditDisplayMode::TabAccept,
1777 ..
1778 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1779 _ => {}
1780 }
1781 }
1782
1783 padding * em_width
1784 };
1785
1786 let blame_entry = blame
1787 .update(cx, |blame, cx| {
1788 blame.blame_for_rows(&[*row_info], cx).next()
1789 })
1790 .flatten()?;
1791
1792 let mut element =
1793 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1794
1795 let start_y = content_origin.y
1796 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1797
1798 let start_x = {
1799 let line_end = if let Some(crease_trailer) = crease_trailer {
1800 crease_trailer.bounds.right()
1801 } else {
1802 content_origin.x - scroll_pixel_position.x + line_layout.width
1803 };
1804
1805 let padded_line_end = line_end + padding;
1806
1807 let min_column_in_pixels = ProjectSettings::get_global(cx)
1808 .git
1809 .inline_blame
1810 .and_then(|settings| settings.min_column)
1811 .map(|col| self.column_pixels(col as usize, window, cx))
1812 .unwrap_or(px(0.));
1813 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1814
1815 cmp::max(padded_line_end, min_start)
1816 };
1817
1818 let absolute_offset = point(start_x, start_y);
1819 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1820
1821 Some(element)
1822 }
1823
1824 #[allow(clippy::too_many_arguments)]
1825 fn layout_blame_entries(
1826 &self,
1827 buffer_rows: &[RowInfo],
1828 em_width: Pixels,
1829 scroll_position: gpui::Point<f32>,
1830 line_height: Pixels,
1831 gutter_hitbox: &Hitbox,
1832 max_width: Option<Pixels>,
1833 window: &mut Window,
1834 cx: &mut App,
1835 ) -> Option<Vec<AnyElement>> {
1836 if !self
1837 .editor
1838 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1839 {
1840 return None;
1841 }
1842
1843 let blame = self.editor.read(cx).blame.clone()?;
1844 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1845 blame.blame_for_rows(buffer_rows, cx).collect()
1846 });
1847
1848 let width = if let Some(max_width) = max_width {
1849 AvailableSpace::Definite(max_width)
1850 } else {
1851 AvailableSpace::MaxContent
1852 };
1853 let scroll_top = scroll_position.y * line_height;
1854 let start_x = em_width;
1855
1856 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1857
1858 let shaped_lines = blamed_rows
1859 .into_iter()
1860 .enumerate()
1861 .flat_map(|(ix, blame_entry)| {
1862 if let Some(blame_entry) = blame_entry {
1863 let mut element = render_blame_entry(
1864 ix,
1865 &blame,
1866 blame_entry,
1867 &self.style,
1868 &mut last_used_color,
1869 self.editor.clone(),
1870 cx,
1871 );
1872
1873 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1874 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1875
1876 element.prepaint_as_root(
1877 absolute_offset,
1878 size(width, AvailableSpace::MinContent),
1879 window,
1880 cx,
1881 );
1882
1883 Some(element)
1884 } else {
1885 None
1886 }
1887 })
1888 .collect();
1889
1890 Some(shaped_lines)
1891 }
1892
1893 #[allow(clippy::too_many_arguments)]
1894 fn layout_indent_guides(
1895 &self,
1896 content_origin: gpui::Point<Pixels>,
1897 text_origin: gpui::Point<Pixels>,
1898 visible_buffer_range: Range<MultiBufferRow>,
1899 scroll_pixel_position: gpui::Point<Pixels>,
1900 line_height: Pixels,
1901 snapshot: &DisplaySnapshot,
1902 window: &mut Window,
1903 cx: &mut App,
1904 ) -> Option<Vec<IndentGuideLayout>> {
1905 let indent_guides = self.editor.update(cx, |editor, cx| {
1906 editor.indent_guides(visible_buffer_range, snapshot, cx)
1907 })?;
1908
1909 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1910 editor
1911 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1912 .unwrap_or_default()
1913 });
1914
1915 Some(
1916 indent_guides
1917 .into_iter()
1918 .enumerate()
1919 .filter_map(|(i, indent_guide)| {
1920 let single_indent_width =
1921 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1922 let total_width = single_indent_width * indent_guide.depth as f32;
1923 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1924 if start_x >= text_origin.x {
1925 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1926 indent_guide.start_row..indent_guide.end_row,
1927 line_height,
1928 snapshot,
1929 );
1930
1931 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1932
1933 Some(IndentGuideLayout {
1934 origin: point(start_x, start_y),
1935 length,
1936 single_indent_width,
1937 depth: indent_guide.depth,
1938 active: active_indent_guide_indices.contains(&i),
1939 settings: indent_guide.settings,
1940 })
1941 } else {
1942 None
1943 }
1944 })
1945 .collect(),
1946 )
1947 }
1948
1949 fn calculate_indent_guide_bounds(
1950 row_range: Range<MultiBufferRow>,
1951 line_height: Pixels,
1952 snapshot: &DisplaySnapshot,
1953 ) -> (gpui::Pixels, gpui::Pixels) {
1954 let start_point = Point::new(row_range.start.0, 0);
1955 let end_point = Point::new(row_range.end.0, 0);
1956
1957 let row_range = start_point.to_display_point(snapshot).row()
1958 ..end_point.to_display_point(snapshot).row();
1959
1960 let mut prev_line = start_point;
1961 prev_line.row = prev_line.row.saturating_sub(1);
1962 let prev_line = prev_line.to_display_point(snapshot).row();
1963
1964 let mut cons_line = end_point;
1965 cons_line.row += 1;
1966 let cons_line = cons_line.to_display_point(snapshot).row();
1967
1968 let mut offset_y = row_range.start.0 as f32 * line_height;
1969 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1970
1971 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1972 if row_range.end == cons_line {
1973 length += line_height;
1974 }
1975
1976 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1977 // we want to extend the indent guide to the start of the block.
1978 let mut block_height = 0;
1979 let mut block_offset = 0;
1980 let mut found_excerpt_header = false;
1981 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1982 if matches!(block, Block::ExcerptBoundary { .. }) {
1983 found_excerpt_header = true;
1984 break;
1985 }
1986 block_offset += block.height();
1987 block_height += block.height();
1988 }
1989 if !found_excerpt_header {
1990 offset_y -= block_offset as f32 * line_height;
1991 length += block_height as f32 * line_height;
1992 }
1993
1994 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1995 // we want to ensure that the indent guide stops before the excerpt header.
1996 let mut block_height = 0;
1997 let mut found_excerpt_header = false;
1998 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1999 if matches!(block, Block::ExcerptBoundary { .. }) {
2000 found_excerpt_header = true;
2001 }
2002 block_height += block.height();
2003 }
2004 if found_excerpt_header {
2005 length -= block_height as f32 * line_height;
2006 }
2007
2008 (offset_y, length)
2009 }
2010
2011 #[allow(clippy::too_many_arguments)]
2012 fn layout_run_indicators(
2013 &self,
2014 line_height: Pixels,
2015 range: Range<DisplayRow>,
2016 scroll_pixel_position: gpui::Point<Pixels>,
2017 gutter_dimensions: &GutterDimensions,
2018 gutter_hitbox: &Hitbox,
2019 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2020 snapshot: &EditorSnapshot,
2021 window: &mut Window,
2022 cx: &mut App,
2023 ) -> Vec<AnyElement> {
2024 self.editor.update(cx, |editor, cx| {
2025 let active_task_indicator_row =
2026 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2027 deployed_from_indicator,
2028 actions,
2029 ..
2030 })) = editor.context_menu.borrow().as_ref()
2031 {
2032 actions
2033 .tasks
2034 .as_ref()
2035 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2036 .or(*deployed_from_indicator)
2037 } else {
2038 None
2039 };
2040
2041 let offset_range_start =
2042 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2043
2044 let offset_range_end =
2045 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2046
2047 editor
2048 .tasks
2049 .iter()
2050 .filter_map(|(_, tasks)| {
2051 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2052 if multibuffer_point < offset_range_start
2053 || multibuffer_point > offset_range_end
2054 {
2055 return None;
2056 }
2057 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2058 let buffer_folded = snapshot
2059 .buffer_snapshot
2060 .buffer_line_for_row(multibuffer_row)
2061 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2062 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2063 .unwrap_or(false);
2064 if buffer_folded {
2065 return None;
2066 }
2067
2068 if snapshot.is_line_folded(multibuffer_row) {
2069 // Skip folded indicators, unless it's the starting line of a fold.
2070 if multibuffer_row
2071 .0
2072 .checked_sub(1)
2073 .map_or(false, |previous_row| {
2074 snapshot.is_line_folded(MultiBufferRow(previous_row))
2075 })
2076 {
2077 return None;
2078 }
2079 }
2080 let display_row = multibuffer_point.to_display_point(snapshot).row();
2081 let button = editor.render_run_indicator(
2082 &self.style,
2083 Some(display_row) == active_task_indicator_row,
2084 display_row,
2085 cx,
2086 );
2087
2088 let button = prepaint_gutter_button(
2089 button,
2090 display_row,
2091 line_height,
2092 gutter_dimensions,
2093 scroll_pixel_position,
2094 gutter_hitbox,
2095 rows_with_hunk_bounds,
2096 window,
2097 cx,
2098 );
2099 Some(button)
2100 })
2101 .collect_vec()
2102 })
2103 }
2104
2105 #[allow(clippy::too_many_arguments)]
2106 fn layout_code_actions_indicator(
2107 &self,
2108 line_height: Pixels,
2109 newest_selection_head: DisplayPoint,
2110 scroll_pixel_position: gpui::Point<Pixels>,
2111 gutter_dimensions: &GutterDimensions,
2112 gutter_hitbox: &Hitbox,
2113 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2114 window: &mut Window,
2115 cx: &mut App,
2116 ) -> Option<AnyElement> {
2117 let mut active = false;
2118 let mut button = None;
2119 let row = newest_selection_head.row();
2120 self.editor.update(cx, |editor, cx| {
2121 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2122 deployed_from_indicator,
2123 ..
2124 })) = editor.context_menu.borrow().as_ref()
2125 {
2126 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2127 };
2128 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2129 });
2130
2131 let button = prepaint_gutter_button(
2132 button?,
2133 row,
2134 line_height,
2135 gutter_dimensions,
2136 scroll_pixel_position,
2137 gutter_hitbox,
2138 rows_with_hunk_bounds,
2139 window,
2140 cx,
2141 );
2142
2143 Some(button)
2144 }
2145
2146 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2147 if let Some(index) = participant_index {
2148 cx.theme().players().color_for_participant(index.0)
2149 } else {
2150 cx.theme().players().absent()
2151 }
2152 }
2153
2154 fn calculate_relative_line_numbers(
2155 &self,
2156 snapshot: &EditorSnapshot,
2157 rows: &Range<DisplayRow>,
2158 relative_to: Option<DisplayRow>,
2159 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2160 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2161 let Some(relative_to) = relative_to else {
2162 return relative_rows;
2163 };
2164
2165 let start = rows.start.min(relative_to);
2166 let end = rows.end.max(relative_to);
2167
2168 let buffer_rows = snapshot
2169 .row_infos(start)
2170 .take(1 + end.minus(start) as usize)
2171 .collect::<Vec<_>>();
2172
2173 let head_idx = relative_to.minus(start);
2174 let mut delta = 1;
2175 let mut i = head_idx + 1;
2176 while i < buffer_rows.len() as u32 {
2177 if buffer_rows[i as usize].buffer_row.is_some() {
2178 if rows.contains(&DisplayRow(i + start.0)) {
2179 relative_rows.insert(DisplayRow(i + start.0), delta);
2180 }
2181 delta += 1;
2182 }
2183 i += 1;
2184 }
2185 delta = 1;
2186 i = head_idx.min(buffer_rows.len() as u32 - 1);
2187 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2188 i -= 1;
2189 }
2190
2191 while i > 0 {
2192 i -= 1;
2193 if buffer_rows[i as usize].buffer_row.is_some() {
2194 if rows.contains(&DisplayRow(i + start.0)) {
2195 relative_rows.insert(DisplayRow(i + start.0), delta);
2196 }
2197 delta += 1;
2198 }
2199 }
2200
2201 relative_rows
2202 }
2203
2204 #[allow(clippy::too_many_arguments)]
2205 fn layout_line_numbers(
2206 &self,
2207 gutter_hitbox: Option<&Hitbox>,
2208 gutter_dimensions: GutterDimensions,
2209 line_height: Pixels,
2210 scroll_position: gpui::Point<f32>,
2211 rows: Range<DisplayRow>,
2212 buffer_rows: &[RowInfo],
2213 newest_selection_head: Option<DisplayPoint>,
2214 snapshot: &EditorSnapshot,
2215 window: &mut Window,
2216 cx: &mut App,
2217 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2218 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2219 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2220 });
2221 if !include_line_numbers {
2222 return Arc::default();
2223 }
2224
2225 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2226 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2227 let newest = editor.selections.newest::<Point>(cx);
2228 SelectionLayout::new(
2229 newest,
2230 editor.selections.line_mode,
2231 editor.cursor_shape,
2232 &snapshot.display_snapshot,
2233 true,
2234 true,
2235 None,
2236 )
2237 .head
2238 });
2239 let is_relative = editor.should_use_relative_line_numbers(cx);
2240 (newest_selection_head, is_relative)
2241 });
2242
2243 let relative_to = if is_relative {
2244 Some(newest_selection_head.row())
2245 } else {
2246 None
2247 };
2248 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2249 let mut line_number = String::new();
2250 let line_numbers = buffer_rows
2251 .into_iter()
2252 .enumerate()
2253 .flat_map(|(ix, row_info)| {
2254 let display_row = DisplayRow(rows.start.0 + ix as u32);
2255 line_number.clear();
2256 let non_relative_number = row_info.buffer_row? + 1;
2257 let number = relative_rows
2258 .get(&display_row)
2259 .unwrap_or(&non_relative_number);
2260 write!(&mut line_number, "{number}").unwrap();
2261 if row_info
2262 .diff_status
2263 .is_some_and(|status| status.is_deleted())
2264 {
2265 return None;
2266 }
2267
2268 let color = cx.theme().colors().editor_line_number;
2269 let shaped_line = self
2270 .shape_line_number(SharedString::from(&line_number), color, window)
2271 .log_err()?;
2272 let scroll_top = scroll_position.y * line_height;
2273 let line_origin = gutter_hitbox.map(|hitbox| {
2274 hitbox.origin
2275 + point(
2276 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2277 ix as f32 * line_height - (scroll_top % line_height),
2278 )
2279 });
2280
2281 #[cfg(not(test))]
2282 let hitbox = line_origin.map(|line_origin| {
2283 window.insert_hitbox(
2284 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2285 false,
2286 )
2287 });
2288 #[cfg(test)]
2289 let hitbox = {
2290 let _ = line_origin;
2291 None
2292 };
2293
2294 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2295 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2296 let line_number = LineNumberLayout {
2297 shaped_line,
2298 hitbox,
2299 display_row,
2300 };
2301 Some((multi_buffer_row, line_number))
2302 })
2303 .collect();
2304 Arc::new(line_numbers)
2305 }
2306
2307 fn layout_crease_toggles(
2308 &self,
2309 rows: Range<DisplayRow>,
2310 row_infos: &[RowInfo],
2311 active_rows: &BTreeMap<DisplayRow, bool>,
2312 snapshot: &EditorSnapshot,
2313 window: &mut Window,
2314 cx: &mut App,
2315 ) -> Vec<Option<AnyElement>> {
2316 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2317 && snapshot.mode == EditorMode::Full
2318 && self.editor.read(cx).is_singleton(cx);
2319 if include_fold_statuses {
2320 row_infos
2321 .into_iter()
2322 .enumerate()
2323 .map(|(ix, info)| {
2324 let row = info.multibuffer_row?;
2325 let display_row = DisplayRow(rows.start.0 + ix as u32);
2326 let active = active_rows.contains_key(&display_row);
2327
2328 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2329 })
2330 .collect()
2331 } else {
2332 Vec::new()
2333 }
2334 }
2335
2336 fn layout_crease_trailers(
2337 &self,
2338 buffer_rows: impl IntoIterator<Item = RowInfo>,
2339 snapshot: &EditorSnapshot,
2340 window: &mut Window,
2341 cx: &mut App,
2342 ) -> Vec<Option<AnyElement>> {
2343 buffer_rows
2344 .into_iter()
2345 .map(|row_info| {
2346 if let Some(row) = row_info.multibuffer_row {
2347 snapshot.render_crease_trailer(row, window, cx)
2348 } else {
2349 None
2350 }
2351 })
2352 .collect()
2353 }
2354
2355 fn layout_lines(
2356 rows: Range<DisplayRow>,
2357 snapshot: &EditorSnapshot,
2358 style: &EditorStyle,
2359 editor_width: Pixels,
2360 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2361 window: &mut Window,
2362 cx: &mut App,
2363 ) -> Vec<LineWithInvisibles> {
2364 if rows.start >= rows.end {
2365 return Vec::new();
2366 }
2367
2368 // Show the placeholder when the editor is empty
2369 if snapshot.is_empty() {
2370 let font_size = style.text.font_size.to_pixels(window.rem_size());
2371 let placeholder_color = cx.theme().colors().text_placeholder;
2372 let placeholder_text = snapshot.placeholder_text();
2373
2374 let placeholder_lines = placeholder_text
2375 .as_ref()
2376 .map_or("", AsRef::as_ref)
2377 .split('\n')
2378 .skip(rows.start.0 as usize)
2379 .chain(iter::repeat(""))
2380 .take(rows.len());
2381 placeholder_lines
2382 .filter_map(move |line| {
2383 let run = TextRun {
2384 len: line.len(),
2385 font: style.text.font(),
2386 color: placeholder_color,
2387 background_color: None,
2388 underline: Default::default(),
2389 strikethrough: None,
2390 };
2391 window
2392 .text_system()
2393 .shape_line(line.to_string().into(), font_size, &[run])
2394 .log_err()
2395 })
2396 .map(|line| LineWithInvisibles {
2397 width: line.width,
2398 len: line.len,
2399 fragments: smallvec![LineFragment::Text(line)],
2400 invisibles: Vec::new(),
2401 font_size,
2402 })
2403 .collect()
2404 } else {
2405 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2406 LineWithInvisibles::from_chunks(
2407 chunks,
2408 &style,
2409 MAX_LINE_LEN,
2410 rows.len(),
2411 snapshot.mode,
2412 editor_width,
2413 is_row_soft_wrapped,
2414 window,
2415 cx,
2416 )
2417 }
2418 }
2419
2420 #[allow(clippy::too_many_arguments)]
2421 fn prepaint_lines(
2422 &self,
2423 start_row: DisplayRow,
2424 line_layouts: &mut [LineWithInvisibles],
2425 line_height: Pixels,
2426 scroll_pixel_position: gpui::Point<Pixels>,
2427 content_origin: gpui::Point<Pixels>,
2428 window: &mut Window,
2429 cx: &mut App,
2430 ) -> SmallVec<[AnyElement; 1]> {
2431 let mut line_elements = SmallVec::new();
2432 for (ix, line) in line_layouts.iter_mut().enumerate() {
2433 let row = start_row + DisplayRow(ix as u32);
2434 line.prepaint(
2435 line_height,
2436 scroll_pixel_position,
2437 row,
2438 content_origin,
2439 &mut line_elements,
2440 window,
2441 cx,
2442 );
2443 }
2444 line_elements
2445 }
2446
2447 #[allow(clippy::too_many_arguments)]
2448 fn render_block(
2449 &self,
2450 block: &Block,
2451 available_width: AvailableSpace,
2452 block_id: BlockId,
2453 block_row_start: DisplayRow,
2454 snapshot: &EditorSnapshot,
2455 text_x: Pixels,
2456 rows: &Range<DisplayRow>,
2457 line_layouts: &[LineWithInvisibles],
2458 gutter_dimensions: &GutterDimensions,
2459 line_height: Pixels,
2460 em_width: Pixels,
2461 text_hitbox: &Hitbox,
2462 editor_width: Pixels,
2463 scroll_width: &mut Pixels,
2464 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2465 selections: &[Selection<Point>],
2466 selected_buffer_ids: &Vec<BufferId>,
2467 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2468 sticky_header_excerpt_id: Option<ExcerptId>,
2469 window: &mut Window,
2470 cx: &mut App,
2471 ) -> (AnyElement, Size<Pixels>) {
2472 let mut element = match block {
2473 Block::Custom(block) => {
2474 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2475 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2476 let align_to = block_start.to_display_point(snapshot);
2477 let anchor_x = text_x
2478 + if rows.contains(&align_to.row()) {
2479 line_layouts[align_to.row().minus(rows.start) as usize]
2480 .x_for_index(align_to.column() as usize)
2481 } else {
2482 layout_line(
2483 align_to.row(),
2484 snapshot,
2485 &self.style,
2486 editor_width,
2487 is_row_soft_wrapped,
2488 window,
2489 cx,
2490 )
2491 .x_for_index(align_to.column() as usize)
2492 };
2493
2494 let selected = selections
2495 .binary_search_by(|selection| {
2496 if selection.end <= block_start {
2497 Ordering::Less
2498 } else if selection.start >= block_end {
2499 Ordering::Greater
2500 } else {
2501 Ordering::Equal
2502 }
2503 })
2504 .is_ok();
2505
2506 div()
2507 .size_full()
2508 .child(block.render(&mut BlockContext {
2509 window,
2510 app: cx,
2511 anchor_x,
2512 gutter_dimensions,
2513 line_height,
2514 em_width,
2515 block_id,
2516 selected,
2517 max_width: text_hitbox.size.width.max(*scroll_width),
2518 editor_style: &self.style,
2519 }))
2520 .into_any()
2521 }
2522
2523 Block::FoldedBuffer {
2524 first_excerpt,
2525 prev_excerpt,
2526 show_excerpt_controls,
2527 height,
2528 } => {
2529 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2530 let mut result = v_flex().id(block_id).w_full();
2531
2532 if let Some(prev_excerpt) = prev_excerpt {
2533 if *show_excerpt_controls {
2534 result = result.child(self.render_expand_excerpt_control(
2535 block_id,
2536 ExpandExcerptDirection::Down,
2537 prev_excerpt.id,
2538 gutter_dimensions,
2539 window,
2540 cx,
2541 ));
2542 }
2543 }
2544
2545 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2546 result
2547 .child(self.render_buffer_header(
2548 first_excerpt,
2549 true,
2550 selected,
2551 jump_data,
2552 window,
2553 cx,
2554 ))
2555 .into_any_element()
2556 }
2557
2558 Block::ExcerptBoundary {
2559 prev_excerpt,
2560 next_excerpt,
2561 show_excerpt_controls,
2562 height,
2563 starts_new_buffer,
2564 } => {
2565 let color = cx.theme().colors().clone();
2566 let mut result = v_flex().id(block_id).w_full();
2567
2568 if let Some(prev_excerpt) = prev_excerpt {
2569 if *show_excerpt_controls {
2570 result = result.child(self.render_expand_excerpt_control(
2571 block_id,
2572 ExpandExcerptDirection::Down,
2573 prev_excerpt.id,
2574 gutter_dimensions,
2575 window,
2576 cx,
2577 ));
2578 }
2579 }
2580
2581 if let Some(next_excerpt) = next_excerpt {
2582 let jump_data =
2583 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2584
2585 if *starts_new_buffer {
2586 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2587 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2588
2589 result = result.child(self.render_buffer_header(
2590 next_excerpt,
2591 false,
2592 selected,
2593 jump_data,
2594 window,
2595 cx,
2596 ));
2597 } else {
2598 result = result
2599 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2600 }
2601
2602 if *show_excerpt_controls {
2603 result = result.child(self.render_expand_excerpt_control(
2604 block_id,
2605 ExpandExcerptDirection::Up,
2606 next_excerpt.id,
2607 gutter_dimensions,
2608 window,
2609 cx,
2610 ));
2611 }
2612 } else {
2613 if *show_excerpt_controls {
2614 result = result.child(
2615 h_flex()
2616 .relative()
2617 .child(
2618 div()
2619 .top(px(0.))
2620 .absolute()
2621 .w_full()
2622 .h_px()
2623 .bg(color.border_variant),
2624 )
2625 .child(self.render_expand_excerpt_control(
2626 block_id,
2627 ExpandExcerptDirection::Up,
2628 next_excerpt.id,
2629 gutter_dimensions,
2630 window,
2631 cx,
2632 )),
2633 );
2634 }
2635 };
2636 }
2637
2638 result.into_any()
2639 }
2640 };
2641
2642 // Discover the element's content height, then round up to the nearest multiple of line height.
2643 let preliminary_size = element.layout_as_root(
2644 size(available_width, AvailableSpace::MinContent),
2645 window,
2646 cx,
2647 );
2648 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2649 let final_size = if preliminary_size.height == quantized_height {
2650 preliminary_size
2651 } else {
2652 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2653 };
2654
2655 if let BlockId::Custom(custom_block_id) = block_id {
2656 if block.height() > 0 {
2657 let element_height_in_lines =
2658 ((final_size.height / line_height).ceil() as u32).max(1);
2659 if element_height_in_lines != block.height() {
2660 resized_blocks.insert(custom_block_id, element_height_in_lines);
2661 }
2662 }
2663 }
2664
2665 (element, final_size)
2666 }
2667
2668 fn render_buffer_header(
2669 &self,
2670 for_excerpt: &ExcerptInfo,
2671 is_folded: bool,
2672 is_selected: bool,
2673 jump_data: JumpData,
2674 window: &mut Window,
2675 cx: &mut App,
2676 ) -> Div {
2677 let file_status = maybe!({
2678 let project = self.editor.read(cx).project.as_ref()?.read(cx);
2679 let (repo, path) =
2680 project.repository_and_path_for_buffer_id(for_excerpt.buffer_id, cx)?;
2681 let status = repo.read(cx).repository_entry.status_for_path(&path)?;
2682 Some(status.status)
2683 })
2684 .filter(|_| {
2685 self.editor
2686 .read(cx)
2687 .buffer
2688 .read(cx)
2689 .all_diff_hunks_expanded()
2690 });
2691
2692 let include_root = self
2693 .editor
2694 .read(cx)
2695 .project
2696 .as_ref()
2697 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2698 .unwrap_or_default();
2699 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2700 let filename = path
2701 .as_ref()
2702 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2703 let parent_path = path.as_ref().and_then(|path| {
2704 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2705 });
2706 let focus_handle = self.editor.focus_handle(cx);
2707 let colors = cx.theme().colors();
2708
2709 div()
2710 .px_2()
2711 .pt_2()
2712 .w_full()
2713 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2714 .child(
2715 h_flex()
2716 .size_full()
2717 .gap_2()
2718 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2719 .pl_0p5()
2720 .pr_5()
2721 .rounded_md()
2722 .shadow_md()
2723 .border_1()
2724 .map(|div| {
2725 let border_color = if is_selected
2726 && is_folded
2727 && focus_handle.contains_focused(window, cx)
2728 {
2729 colors.border_focused
2730 } else {
2731 colors.border
2732 };
2733 div.border_color(border_color)
2734 })
2735 .bg(colors.editor_subheader_background)
2736 .hover(|style| style.bg(colors.element_hover))
2737 .map(|header| {
2738 let editor = self.editor.clone();
2739 let buffer_id = for_excerpt.buffer_id;
2740 let toggle_chevron_icon =
2741 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2742 header.child(
2743 div()
2744 .hover(|style| style.bg(colors.element_selected))
2745 .rounded_sm()
2746 .child(
2747 ButtonLike::new("toggle-buffer-fold")
2748 .style(ui::ButtonStyle::Transparent)
2749 .size(ButtonSize::Large)
2750 .width(px(30.).into())
2751 .children(toggle_chevron_icon)
2752 .tooltip({
2753 let focus_handle = focus_handle.clone();
2754 move |window, cx| {
2755 Tooltip::for_action_in(
2756 "Toggle Excerpt Fold",
2757 &ToggleFold,
2758 &focus_handle,
2759 window,
2760 cx,
2761 )
2762 }
2763 })
2764 .on_click(move |_, _, cx| {
2765 if is_folded {
2766 editor.update(cx, |editor, cx| {
2767 editor.unfold_buffer(buffer_id, cx);
2768 });
2769 } else {
2770 editor.update(cx, |editor, cx| {
2771 editor.fold_buffer(buffer_id, cx);
2772 });
2773 }
2774 }),
2775 ),
2776 )
2777 })
2778 .children(
2779 self.editor
2780 .read(cx)
2781 .addons
2782 .values()
2783 .filter_map(|addon| {
2784 addon.render_buffer_header_controls(for_excerpt, window, cx)
2785 })
2786 .take(1),
2787 )
2788 .child(
2789 h_flex()
2790 .cursor_pointer()
2791 .id("path header block")
2792 .size_full()
2793 .justify_between()
2794 .child(
2795 h_flex()
2796 .gap_2()
2797 .child(
2798 Label::new(
2799 filename
2800 .map(SharedString::from)
2801 .unwrap_or_else(|| "untitled".into()),
2802 )
2803 .single_line()
2804 .when_some(
2805 file_status,
2806 |el, status| {
2807 el.color(if status.is_conflicted() {
2808 Color::Conflict
2809 } else if status.is_modified() {
2810 Color::Modified
2811 } else if status.is_deleted() {
2812 Color::Disabled
2813 } else {
2814 Color::Created
2815 })
2816 .when(status.is_deleted(), |el| el.strikethrough())
2817 },
2818 ),
2819 )
2820 .when_some(parent_path, |then, path| {
2821 then.child(div().child(path).text_color(
2822 if file_status.is_some_and(FileStatus::is_deleted) {
2823 colors.text_disabled
2824 } else {
2825 colors.text_muted
2826 },
2827 ))
2828 }),
2829 )
2830 .when(is_selected, |el| {
2831 el.child(
2832 h_flex()
2833 .id("jump-to-file-button")
2834 .gap_2p5()
2835 .child(Label::new("Jump To File"))
2836 .children(
2837 KeyBinding::for_action_in(
2838 &OpenExcerpts,
2839 &focus_handle,
2840 window,
2841 cx,
2842 )
2843 .map(|binding| binding.into_any_element()),
2844 ),
2845 )
2846 })
2847 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2848 .on_click(window.listener_for(&self.editor, {
2849 move |editor, e: &ClickEvent, window, cx| {
2850 editor.open_excerpts_common(
2851 Some(jump_data.clone()),
2852 e.down.modifiers.secondary(),
2853 window,
2854 cx,
2855 );
2856 }
2857 })),
2858 ),
2859 )
2860 }
2861
2862 fn render_expand_excerpt_control(
2863 &self,
2864 block_id: BlockId,
2865 direction: ExpandExcerptDirection,
2866 excerpt_id: ExcerptId,
2867 gutter_dimensions: &GutterDimensions,
2868 window: &Window,
2869 cx: &mut App,
2870 ) -> impl IntoElement {
2871 let color = cx.theme().colors().clone();
2872 let hover_color = color.border_variant.opacity(0.5);
2873 let focus_handle = self.editor.focus_handle(cx).clone();
2874
2875 let icon_offset =
2876 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2877 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2878 let group_name = if direction == ExpandExcerptDirection::Down {
2879 "expand-down"
2880 } else {
2881 "expand-up"
2882 };
2883
2884 let expand_area = |id: SharedString| {
2885 h_flex()
2886 .id(id)
2887 .w_full()
2888 .cursor_pointer()
2889 .block_mouse_down()
2890 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2891 .hover(|style| style.bg(hover_color))
2892 .tooltip({
2893 let focus_handle = focus_handle.clone();
2894 move |window, cx| {
2895 Tooltip::for_action_in(
2896 "Expand Excerpt",
2897 &ExpandExcerpts { lines: 0 },
2898 &focus_handle,
2899 window,
2900 cx,
2901 )
2902 }
2903 })
2904 };
2905
2906 expand_area(
2907 format!(
2908 "block-{}-{}",
2909 block_id,
2910 if direction == ExpandExcerptDirection::Down {
2911 "down"
2912 } else {
2913 "up"
2914 }
2915 )
2916 .into(),
2917 )
2918 .group(group_name)
2919 .child(
2920 h_flex()
2921 .w(icon_offset)
2922 .h(header_height)
2923 .flex_none()
2924 .justify_end()
2925 .child(
2926 ButtonLike::new("expand-icon")
2927 .style(ButtonStyle::Transparent)
2928 .child(
2929 svg()
2930 .path(if direction == ExpandExcerptDirection::Down {
2931 IconName::ArrowDownFromLine.path()
2932 } else {
2933 IconName::ArrowUpFromLine.path()
2934 })
2935 .size(IconSize::XSmall.rems())
2936 .text_color(cx.theme().colors().editor_line_number)
2937 .group_hover(group_name, |style| {
2938 style.text_color(cx.theme().colors().editor_active_line_number)
2939 }),
2940 ),
2941 ),
2942 )
2943 .on_click(window.listener_for(&self.editor, {
2944 move |editor, _, _, cx| {
2945 editor.expand_excerpt(excerpt_id, direction, cx);
2946 cx.stop_propagation();
2947 }
2948 }))
2949 }
2950
2951 #[allow(clippy::too_many_arguments)]
2952 fn render_blocks(
2953 &self,
2954 rows: Range<DisplayRow>,
2955 snapshot: &EditorSnapshot,
2956 hitbox: &Hitbox,
2957 text_hitbox: &Hitbox,
2958 editor_width: Pixels,
2959 scroll_width: &mut Pixels,
2960 gutter_dimensions: &GutterDimensions,
2961 em_width: Pixels,
2962 text_x: Pixels,
2963 line_height: Pixels,
2964 line_layouts: &[LineWithInvisibles],
2965 selections: &[Selection<Point>],
2966 selected_buffer_ids: &Vec<BufferId>,
2967 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2968 sticky_header_excerpt_id: Option<ExcerptId>,
2969 window: &mut Window,
2970 cx: &mut App,
2971 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2972 let (fixed_blocks, non_fixed_blocks) = snapshot
2973 .blocks_in_range(rows.clone())
2974 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2975
2976 let mut focused_block = self
2977 .editor
2978 .update(cx, |editor, _| editor.take_focused_block());
2979 let mut fixed_block_max_width = Pixels::ZERO;
2980 let mut blocks = Vec::new();
2981 let mut resized_blocks = HashMap::default();
2982
2983 for (row, block) in fixed_blocks {
2984 let block_id = block.id();
2985
2986 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2987 focused_block = None;
2988 }
2989
2990 let (element, element_size) = self.render_block(
2991 block,
2992 AvailableSpace::MinContent,
2993 block_id,
2994 row,
2995 snapshot,
2996 text_x,
2997 &rows,
2998 line_layouts,
2999 gutter_dimensions,
3000 line_height,
3001 em_width,
3002 text_hitbox,
3003 editor_width,
3004 scroll_width,
3005 &mut resized_blocks,
3006 selections,
3007 selected_buffer_ids,
3008 is_row_soft_wrapped,
3009 sticky_header_excerpt_id,
3010 window,
3011 cx,
3012 );
3013 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3014 blocks.push(BlockLayout {
3015 id: block_id,
3016 row: Some(row),
3017 element,
3018 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3019 style: BlockStyle::Fixed,
3020 });
3021 }
3022
3023 for (row, block) in non_fixed_blocks {
3024 let style = block.style();
3025 let width = match style {
3026 BlockStyle::Sticky => hitbox.size.width,
3027 BlockStyle::Flex => hitbox
3028 .size
3029 .width
3030 .max(fixed_block_max_width)
3031 .max(gutter_dimensions.width + *scroll_width),
3032 BlockStyle::Fixed => unreachable!(),
3033 };
3034 let block_id = block.id();
3035
3036 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3037 focused_block = None;
3038 }
3039
3040 let (element, element_size) = self.render_block(
3041 block,
3042 width.into(),
3043 block_id,
3044 row,
3045 snapshot,
3046 text_x,
3047 &rows,
3048 line_layouts,
3049 gutter_dimensions,
3050 line_height,
3051 em_width,
3052 text_hitbox,
3053 editor_width,
3054 scroll_width,
3055 &mut resized_blocks,
3056 selections,
3057 selected_buffer_ids,
3058 is_row_soft_wrapped,
3059 sticky_header_excerpt_id,
3060 window,
3061 cx,
3062 );
3063
3064 blocks.push(BlockLayout {
3065 id: block_id,
3066 row: Some(row),
3067 element,
3068 available_space: size(width.into(), element_size.height.into()),
3069 style,
3070 });
3071 }
3072
3073 if let Some(focused_block) = focused_block {
3074 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3075 if focus_handle.is_focused(window) {
3076 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3077 let style = block.style();
3078 let width = match style {
3079 BlockStyle::Fixed => AvailableSpace::MinContent,
3080 BlockStyle::Flex => AvailableSpace::Definite(
3081 hitbox
3082 .size
3083 .width
3084 .max(fixed_block_max_width)
3085 .max(gutter_dimensions.width + *scroll_width),
3086 ),
3087 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3088 };
3089
3090 let (element, element_size) = self.render_block(
3091 &block,
3092 width,
3093 focused_block.id,
3094 rows.end,
3095 snapshot,
3096 text_x,
3097 &rows,
3098 line_layouts,
3099 gutter_dimensions,
3100 line_height,
3101 em_width,
3102 text_hitbox,
3103 editor_width,
3104 scroll_width,
3105 &mut resized_blocks,
3106 selections,
3107 selected_buffer_ids,
3108 is_row_soft_wrapped,
3109 sticky_header_excerpt_id,
3110 window,
3111 cx,
3112 );
3113
3114 blocks.push(BlockLayout {
3115 id: block.id(),
3116 row: None,
3117 element,
3118 available_space: size(width, element_size.height.into()),
3119 style,
3120 });
3121 }
3122 }
3123 }
3124 }
3125
3126 if resized_blocks.is_empty() {
3127 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3128 Ok(blocks)
3129 } else {
3130 Err(resized_blocks)
3131 }
3132 }
3133
3134 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3135 /// a restart of rendering for the editor based on the new sizes.
3136 #[allow(clippy::too_many_arguments)]
3137 fn layout_blocks(
3138 &self,
3139 blocks: &mut Vec<BlockLayout>,
3140 block_starts: &mut HashSet<DisplayRow>,
3141 hitbox: &Hitbox,
3142 line_height: Pixels,
3143 scroll_pixel_position: gpui::Point<Pixels>,
3144 window: &mut Window,
3145 cx: &mut App,
3146 ) {
3147 for block in blocks {
3148 let mut origin = if let Some(row) = block.row {
3149 block_starts.insert(row);
3150 hitbox.origin
3151 + point(
3152 Pixels::ZERO,
3153 row.as_f32() * line_height - scroll_pixel_position.y,
3154 )
3155 } else {
3156 // Position the block outside the visible area
3157 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3158 };
3159
3160 if !matches!(block.style, BlockStyle::Sticky) {
3161 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3162 }
3163
3164 let focus_handle =
3165 block
3166 .element
3167 .prepaint_as_root(origin, block.available_space, window, cx);
3168
3169 if let Some(focus_handle) = focus_handle {
3170 self.editor.update(cx, |editor, _cx| {
3171 editor.set_focused_block(FocusedBlock {
3172 id: block.id,
3173 focus_handle: focus_handle.downgrade(),
3174 });
3175 });
3176 }
3177 }
3178 }
3179
3180 #[allow(clippy::too_many_arguments)]
3181 fn layout_sticky_buffer_header(
3182 &self,
3183 StickyHeaderExcerpt {
3184 excerpt,
3185 next_excerpt_controls_present,
3186 next_buffer_row,
3187 }: StickyHeaderExcerpt<'_>,
3188 scroll_position: f32,
3189 line_height: Pixels,
3190 snapshot: &EditorSnapshot,
3191 hitbox: &Hitbox,
3192 selected_buffer_ids: &Vec<BufferId>,
3193 window: &mut Window,
3194 cx: &mut App,
3195 ) -> AnyElement {
3196 let jump_data = header_jump_data(
3197 snapshot,
3198 DisplayRow(scroll_position as u32),
3199 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3200 excerpt,
3201 );
3202
3203 let editor_bg_color = cx.theme().colors().editor_background;
3204
3205 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3206
3207 let mut header = v_flex()
3208 .relative()
3209 .child(
3210 div()
3211 .w(hitbox.bounds.size.width)
3212 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3213 .bg(linear_gradient(
3214 0.,
3215 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3216 linear_color_stop(editor_bg_color, 0.6),
3217 ))
3218 .absolute()
3219 .top_0(),
3220 )
3221 .child(
3222 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3223 .into_any_element(),
3224 )
3225 .into_any_element();
3226
3227 let mut origin = hitbox.origin;
3228
3229 if let Some(next_buffer_row) = next_buffer_row {
3230 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3231
3232 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3233
3234 if next_excerpt_controls_present {
3235 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3236 }
3237
3238 let offset = scroll_position - max_row as f32;
3239
3240 if offset > 0.0 {
3241 origin.y -= Pixels(offset) * line_height;
3242 }
3243 }
3244
3245 let size = size(
3246 AvailableSpace::Definite(hitbox.size.width),
3247 AvailableSpace::MinContent,
3248 );
3249
3250 header.prepaint_as_root(origin, size, window, cx);
3251
3252 header
3253 }
3254
3255 #[allow(clippy::too_many_arguments)]
3256 fn layout_cursor_popovers(
3257 &self,
3258 line_height: Pixels,
3259 text_hitbox: &Hitbox,
3260 content_origin: gpui::Point<Pixels>,
3261 start_row: DisplayRow,
3262 scroll_pixel_position: gpui::Point<Pixels>,
3263 line_layouts: &[LineWithInvisibles],
3264 cursor: DisplayPoint,
3265 cursor_point: Point,
3266 style: &EditorStyle,
3267 window: &mut Window,
3268 cx: &mut App,
3269 ) {
3270 let mut min_menu_height = Pixels::ZERO;
3271 let mut max_menu_height = Pixels::ZERO;
3272 let mut height_above_menu = Pixels::ZERO;
3273 let height_below_menu = Pixels::ZERO;
3274 let mut edit_prediction_popover_visible = false;
3275 let mut context_menu_visible = false;
3276
3277 {
3278 let editor = self.editor.read(cx);
3279 if editor
3280 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3281 {
3282 height_above_menu +=
3283 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3284 edit_prediction_popover_visible = true;
3285 }
3286
3287 if editor.context_menu_visible() {
3288 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3289 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3290 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3291 context_menu_visible = true;
3292 }
3293 }
3294 }
3295
3296 let visible = edit_prediction_popover_visible || context_menu_visible;
3297 if !visible {
3298 return;
3299 }
3300
3301 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3302 let target_position = content_origin
3303 + gpui::Point {
3304 x: cmp::max(
3305 px(0.),
3306 cursor_row_layout.x_for_index(cursor.column() as usize)
3307 - scroll_pixel_position.x,
3308 ),
3309 y: cmp::max(
3310 px(0.),
3311 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3312 ),
3313 };
3314
3315 let viewport_bounds =
3316 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3317 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3318 ..Default::default()
3319 });
3320
3321 let min_height = height_above_menu + min_menu_height + height_below_menu;
3322 let max_height = height_above_menu + max_menu_height + height_below_menu;
3323 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3324 target_position,
3325 line_height,
3326 min_height,
3327 max_height,
3328 text_hitbox,
3329 viewport_bounds,
3330 window,
3331 cx,
3332 |height, max_width_for_stable_x, y_flipped, window, cx| {
3333 // First layout the menu to get its size - others can be at least this wide.
3334 let context_menu = if context_menu_visible {
3335 let menu_height = if y_flipped {
3336 height - height_below_menu
3337 } else {
3338 height - height_above_menu
3339 };
3340 let mut element = self
3341 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3342 .expect("Visible context menu should always render.");
3343 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3344 Some((CursorPopoverType::CodeContextMenu, element, size))
3345 } else {
3346 None
3347 };
3348 let min_width = context_menu
3349 .as_ref()
3350 .map_or(px(0.), |(_, _, size)| size.width);
3351 let max_width = max_width_for_stable_x.max(
3352 context_menu
3353 .as_ref()
3354 .map_or(px(0.), |(_, _, size)| size.width),
3355 );
3356
3357 let edit_prediction = if edit_prediction_popover_visible {
3358 self.editor.update(cx, move |editor, cx| {
3359 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3360 let mut element = editor.render_edit_prediction_cursor_popover(
3361 min_width,
3362 max_width,
3363 cursor_point,
3364 style,
3365 accept_binding.keystroke(),
3366 window,
3367 cx,
3368 )?;
3369 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3370 Some((CursorPopoverType::EditPrediction, element, size))
3371 })
3372 } else {
3373 None
3374 };
3375 vec![edit_prediction, context_menu]
3376 .into_iter()
3377 .flatten()
3378 .collect::<Vec<_>>()
3379 },
3380 ) else {
3381 return;
3382 };
3383
3384 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3385 .iter()
3386 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3387 else {
3388 return;
3389 };
3390 let last_ix = laid_out_popovers.len() - 1;
3391 let menu_is_last = menu_ix == last_ix;
3392 let first_popover_bounds = laid_out_popovers[0].1;
3393 let last_popover_bounds = laid_out_popovers[last_ix].1;
3394
3395 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3396 // right, and otherwise it goes below or to the right.
3397 let mut target_bounds = Bounds::from_corners(
3398 first_popover_bounds.origin,
3399 last_popover_bounds.bottom_right(),
3400 );
3401 target_bounds.size.width = menu_bounds.size.width;
3402
3403 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3404 // based on this is preferred for layout stability.
3405 let mut max_target_bounds = target_bounds;
3406 max_target_bounds.size.height = max_height;
3407 if y_flipped {
3408 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3409 }
3410
3411 // Add spacing around `target_bounds` and `max_target_bounds`.
3412 let mut extend_amount = Edges::all(MENU_GAP);
3413 if y_flipped {
3414 extend_amount.bottom = line_height;
3415 } else {
3416 extend_amount.top = line_height;
3417 }
3418 let target_bounds = target_bounds.extend(extend_amount);
3419 let max_target_bounds = max_target_bounds.extend(extend_amount);
3420
3421 let must_place_above_or_below =
3422 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3423 laid_out_popovers[menu_ix + 1..]
3424 .iter()
3425 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3426 } else {
3427 false
3428 };
3429
3430 self.layout_context_menu_aside(
3431 y_flipped,
3432 *menu_bounds,
3433 target_bounds,
3434 max_target_bounds,
3435 max_menu_height,
3436 must_place_above_or_below,
3437 text_hitbox,
3438 viewport_bounds,
3439 window,
3440 cx,
3441 );
3442 }
3443
3444 #[allow(clippy::too_many_arguments)]
3445 fn layout_gutter_menu(
3446 &self,
3447 line_height: Pixels,
3448 text_hitbox: &Hitbox,
3449 content_origin: gpui::Point<Pixels>,
3450 scroll_pixel_position: gpui::Point<Pixels>,
3451 gutter_overshoot: Pixels,
3452 window: &mut Window,
3453 cx: &mut App,
3454 ) {
3455 let editor = self.editor.read(cx);
3456 if !editor.context_menu_visible() {
3457 return;
3458 }
3459 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3460 editor.context_menu_origin()
3461 else {
3462 return;
3463 };
3464 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3465 // indicator than just a plain first column of the text field.
3466 let target_position = content_origin
3467 + gpui::Point {
3468 x: -gutter_overshoot,
3469 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3470 };
3471 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3472 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3473 let viewport_bounds =
3474 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3475 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3476 ..Default::default()
3477 });
3478 self.layout_popovers_above_or_below_line(
3479 target_position,
3480 line_height,
3481 min_height,
3482 max_height,
3483 text_hitbox,
3484 viewport_bounds,
3485 window,
3486 cx,
3487 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3488 let mut element = self
3489 .render_context_menu(line_height, height, y_flipped, window, cx)
3490 .expect("Visible context menu should always render.");
3491 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3492 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3493 },
3494 );
3495 }
3496
3497 #[allow(clippy::too_many_arguments)]
3498 fn layout_popovers_above_or_below_line(
3499 &self,
3500 target_position: gpui::Point<Pixels>,
3501 line_height: Pixels,
3502 min_height: Pixels,
3503 max_height: Pixels,
3504 text_hitbox: &Hitbox,
3505 viewport_bounds: Bounds<Pixels>,
3506 window: &mut Window,
3507 cx: &mut App,
3508 make_sized_popovers: impl FnOnce(
3509 Pixels,
3510 Pixels,
3511 bool,
3512 &mut Window,
3513 &mut App,
3514 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3515 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3516 let text_style = TextStyleRefinement {
3517 line_height: Some(DefiniteLength::Fraction(
3518 BufferLineHeight::Comfortable.value(),
3519 )),
3520 ..Default::default()
3521 };
3522 window.with_text_style(Some(text_style), |window| {
3523 // If the max height won't fit below and there is more space above, put it above the line.
3524 let bottom_y_when_flipped = target_position.y - line_height;
3525 let available_above = bottom_y_when_flipped - text_hitbox.top();
3526 let available_below = text_hitbox.bottom() - target_position.y;
3527 let y_overflows_below = max_height > available_below;
3528 let mut y_flipped = y_overflows_below && available_above > available_below;
3529 let mut height = cmp::min(
3530 max_height,
3531 if y_flipped {
3532 available_above
3533 } else {
3534 available_below
3535 },
3536 );
3537
3538 // If the min height doesn't fit within text bounds, instead fit within the window.
3539 if height < min_height {
3540 let available_above = bottom_y_when_flipped;
3541 let available_below = viewport_bounds.bottom() - target_position.y;
3542 if available_below > min_height {
3543 y_flipped = false;
3544 height = min_height;
3545 } else if available_above > min_height {
3546 y_flipped = true;
3547 height = min_height;
3548 } else if available_above > available_below {
3549 y_flipped = true;
3550 height = available_above;
3551 } else {
3552 y_flipped = false;
3553 height = available_below;
3554 }
3555 }
3556
3557 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3558
3559 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3560 // for very narrow windows.
3561 let popovers =
3562 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3563 if popovers.is_empty() {
3564 return None;
3565 }
3566
3567 let max_width = popovers
3568 .iter()
3569 .map(|(_, _, size)| size.width)
3570 .max()
3571 .unwrap_or_default();
3572
3573 let mut current_position = gpui::Point {
3574 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3575 // overflow. Include space for the scrollbar.
3576 x: target_position
3577 .x
3578 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3579 y: if y_flipped {
3580 bottom_y_when_flipped
3581 } else {
3582 target_position.y
3583 },
3584 };
3585
3586 let mut laid_out_popovers = popovers
3587 .into_iter()
3588 .map(|(popover_type, element, size)| {
3589 if y_flipped {
3590 current_position.y -= size.height;
3591 }
3592 let position = current_position;
3593 window.defer_draw(element, current_position, 1);
3594 if !y_flipped {
3595 current_position.y += size.height + MENU_GAP;
3596 } else {
3597 current_position.y -= MENU_GAP;
3598 }
3599 (popover_type, Bounds::new(position, size))
3600 })
3601 .collect::<Vec<_>>();
3602
3603 if y_flipped {
3604 laid_out_popovers.reverse();
3605 }
3606
3607 Some((laid_out_popovers, y_flipped))
3608 })
3609 }
3610
3611 #[allow(clippy::too_many_arguments)]
3612 fn layout_context_menu_aside(
3613 &self,
3614 y_flipped: bool,
3615 menu_bounds: Bounds<Pixels>,
3616 target_bounds: Bounds<Pixels>,
3617 max_target_bounds: Bounds<Pixels>,
3618 max_height: Pixels,
3619 must_place_above_or_below: bool,
3620 text_hitbox: &Hitbox,
3621 viewport_bounds: Bounds<Pixels>,
3622 window: &mut Window,
3623 cx: &mut App,
3624 ) {
3625 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3626 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3627 && !must_place_above_or_below
3628 {
3629 let max_width = cmp::min(
3630 available_within_viewport.right - px(1.),
3631 MENU_ASIDE_MAX_WIDTH,
3632 );
3633 let Some(mut aside) = self.render_context_menu_aside(
3634 size(max_width, max_height - POPOVER_Y_PADDING),
3635 window,
3636 cx,
3637 ) else {
3638 return;
3639 };
3640 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3641 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3642 Some((aside, right_position))
3643 } else {
3644 let max_size = size(
3645 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3646 // won't be needed here.
3647 cmp::min(
3648 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3649 viewport_bounds.right(),
3650 ),
3651 cmp::min(
3652 max_height,
3653 cmp::max(
3654 available_within_viewport.top,
3655 available_within_viewport.bottom,
3656 ),
3657 ) - POPOVER_Y_PADDING,
3658 );
3659 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3660 return;
3661 };
3662 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3663
3664 let top_position = point(
3665 menu_bounds.origin.x,
3666 target_bounds.top() - actual_size.height,
3667 );
3668 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3669
3670 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3671 // Prefer to fit on the same side of the line as the menu, then on the other side of
3672 // the line.
3673 if !y_flipped && wanted.height < available.bottom {
3674 Some(bottom_position)
3675 } else if !y_flipped && wanted.height < available.top {
3676 Some(top_position)
3677 } else if y_flipped && wanted.height < available.top {
3678 Some(top_position)
3679 } else if y_flipped && wanted.height < available.bottom {
3680 Some(bottom_position)
3681 } else {
3682 None
3683 }
3684 };
3685
3686 // Prefer choosing a direction using max sizes rather than actual size for stability.
3687 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3688 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3689 let aside_position = fit_within(available_within_text, wanted)
3690 // Fallback: fit max size in window.
3691 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3692 // Fallback: fit actual size in window.
3693 .or_else(|| fit_within(available_within_viewport, actual_size));
3694
3695 aside_position.map(|position| (aside, position))
3696 };
3697
3698 // Skip drawing if it doesn't fit anywhere.
3699 if let Some((aside, position)) = positioned_aside {
3700 window.defer_draw(aside, position, 2);
3701 }
3702 }
3703
3704 fn render_context_menu(
3705 &self,
3706 line_height: Pixels,
3707 height: Pixels,
3708 y_flipped: bool,
3709 window: &mut Window,
3710 cx: &mut App,
3711 ) -> Option<AnyElement> {
3712 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3713 self.editor.update(cx, |editor, cx| {
3714 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3715 })
3716 }
3717
3718 fn render_context_menu_aside(
3719 &self,
3720 max_size: Size<Pixels>,
3721 window: &mut Window,
3722 cx: &mut App,
3723 ) -> Option<AnyElement> {
3724 if max_size.width < px(100.) || max_size.height < px(12.) {
3725 None
3726 } else {
3727 self.editor.update(cx, |editor, cx| {
3728 editor.render_context_menu_aside(max_size, window, cx)
3729 })
3730 }
3731 }
3732
3733 fn layout_mouse_context_menu(
3734 &self,
3735 editor_snapshot: &EditorSnapshot,
3736 visible_range: Range<DisplayRow>,
3737 content_origin: gpui::Point<Pixels>,
3738 window: &mut Window,
3739 cx: &mut App,
3740 ) -> Option<AnyElement> {
3741 let position = self.editor.update(cx, |editor, _cx| {
3742 let visible_start_point = editor.display_to_pixel_point(
3743 DisplayPoint::new(visible_range.start, 0),
3744 editor_snapshot,
3745 window,
3746 )?;
3747 let visible_end_point = editor.display_to_pixel_point(
3748 DisplayPoint::new(visible_range.end, 0),
3749 editor_snapshot,
3750 window,
3751 )?;
3752
3753 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3754 let (source_display_point, position) = match mouse_context_menu.position {
3755 MenuPosition::PinnedToScreen(point) => (None, point),
3756 MenuPosition::PinnedToEditor { source, offset } => {
3757 let source_display_point = source.to_display_point(editor_snapshot);
3758 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3759 let position = content_origin + source_point + offset;
3760 (Some(source_display_point), position)
3761 }
3762 };
3763
3764 let source_included = source_display_point.map_or(true, |source_display_point| {
3765 visible_range
3766 .to_inclusive()
3767 .contains(&source_display_point.row())
3768 });
3769 let position_included =
3770 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3771 if !source_included && !position_included {
3772 None
3773 } else {
3774 Some(position)
3775 }
3776 })?;
3777
3778 let text_style = TextStyleRefinement {
3779 line_height: Some(DefiniteLength::Fraction(
3780 BufferLineHeight::Comfortable.value(),
3781 )),
3782 ..Default::default()
3783 };
3784 window.with_text_style(Some(text_style), |window| {
3785 let mut element = self.editor.update(cx, |editor, _| {
3786 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3787 let context_menu = mouse_context_menu.context_menu.clone();
3788
3789 Some(
3790 deferred(
3791 anchored()
3792 .position(position)
3793 .child(context_menu)
3794 .anchor(Corner::TopLeft)
3795 .snap_to_window_with_margin(px(8.)),
3796 )
3797 .with_priority(1)
3798 .into_any(),
3799 )
3800 })?;
3801
3802 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3803 Some(element)
3804 })
3805 }
3806
3807 #[allow(clippy::too_many_arguments)]
3808 fn layout_hover_popovers(
3809 &self,
3810 snapshot: &EditorSnapshot,
3811 hitbox: &Hitbox,
3812 text_hitbox: &Hitbox,
3813 visible_display_row_range: Range<DisplayRow>,
3814 content_origin: gpui::Point<Pixels>,
3815 scroll_pixel_position: gpui::Point<Pixels>,
3816 line_layouts: &[LineWithInvisibles],
3817 line_height: Pixels,
3818 em_width: Pixels,
3819 window: &mut Window,
3820 cx: &mut App,
3821 ) {
3822 struct MeasuredHoverPopover {
3823 element: AnyElement,
3824 size: Size<Pixels>,
3825 horizontal_offset: Pixels,
3826 }
3827
3828 let max_size = size(
3829 (120. * em_width) // Default size
3830 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3831 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3832 (16. * line_height) // Default size
3833 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3834 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3835 );
3836
3837 let hover_popovers = self.editor.update(cx, |editor, cx| {
3838 editor
3839 .hover_state
3840 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3841 });
3842 let Some((position, hover_popovers)) = hover_popovers else {
3843 return;
3844 };
3845
3846 // This is safe because we check on layout whether the required row is available
3847 let hovered_row_layout =
3848 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3849
3850 // Compute Hovered Point
3851 let x =
3852 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3853 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3854 let hovered_point = content_origin + point(x, y);
3855
3856 let mut overall_height = Pixels::ZERO;
3857 let mut measured_hover_popovers = Vec::new();
3858 for mut hover_popover in hover_popovers {
3859 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3860 let horizontal_offset =
3861 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3862
3863 overall_height += HOVER_POPOVER_GAP + size.height;
3864
3865 measured_hover_popovers.push(MeasuredHoverPopover {
3866 element: hover_popover,
3867 size,
3868 horizontal_offset,
3869 });
3870 }
3871 overall_height += HOVER_POPOVER_GAP;
3872
3873 fn draw_occluder(
3874 width: Pixels,
3875 origin: gpui::Point<Pixels>,
3876 window: &mut Window,
3877 cx: &mut App,
3878 ) {
3879 let mut occlusion = div()
3880 .size_full()
3881 .occlude()
3882 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3883 .into_any_element();
3884 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3885 window.defer_draw(occlusion, origin, 2);
3886 }
3887
3888 if hovered_point.y > overall_height {
3889 // There is enough space above. Render popovers above the hovered point
3890 let mut current_y = hovered_point.y;
3891 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3892 let size = popover.size;
3893 let popover_origin = point(
3894 hovered_point.x + popover.horizontal_offset,
3895 current_y - size.height,
3896 );
3897
3898 window.defer_draw(popover.element, popover_origin, 2);
3899 if position != itertools::Position::Last {
3900 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3901 draw_occluder(size.width, origin, window, cx);
3902 }
3903
3904 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3905 }
3906 } else {
3907 // There is not enough space above. Render popovers below the hovered point
3908 let mut current_y = hovered_point.y + line_height;
3909 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3910 let size = popover.size;
3911 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3912
3913 window.defer_draw(popover.element, popover_origin, 2);
3914 if position != itertools::Position::Last {
3915 let origin = point(popover_origin.x, popover_origin.y + size.height);
3916 draw_occluder(size.width, origin, window, cx);
3917 }
3918
3919 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3920 }
3921 }
3922 }
3923
3924 #[allow(clippy::too_many_arguments)]
3925 fn layout_diff_hunk_controls(
3926 &self,
3927 row_range: Range<DisplayRow>,
3928 row_infos: &[RowInfo],
3929 text_hitbox: &Hitbox,
3930 position_map: &PositionMap,
3931 newest_cursor_position: Option<DisplayPoint>,
3932 line_height: Pixels,
3933 scroll_pixel_position: gpui::Point<Pixels>,
3934 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3935 editor: Entity<Editor>,
3936 window: &mut Window,
3937 cx: &mut App,
3938 ) -> Vec<AnyElement> {
3939 let point_for_position = position_map.point_for_position(window.mouse_position());
3940
3941 let mut controls = vec![];
3942
3943 let active_positions = [
3944 Some(point_for_position.previous_valid),
3945 newest_cursor_position,
3946 ];
3947
3948 for (hunk, _) in display_hunks {
3949 if let DisplayDiffHunk::Unfolded {
3950 display_row_range,
3951 multi_buffer_range,
3952 status,
3953 ..
3954 } = &hunk
3955 {
3956 if display_row_range.start < row_range.start
3957 || display_row_range.start >= row_range.end
3958 {
3959 continue;
3960 }
3961 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3962 if row_infos[row_ix].diff_status.is_none() {
3963 continue;
3964 }
3965 if row_infos[row_ix]
3966 .diff_status
3967 .is_some_and(|status| status.is_added())
3968 && !status.is_added()
3969 {
3970 continue;
3971 }
3972 if active_positions
3973 .iter()
3974 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3975 {
3976 let y = display_row_range.start.as_f32() * line_height
3977 + text_hitbox.bounds.top()
3978 - scroll_pixel_position.y;
3979
3980 let mut element = diff_hunk_controls(
3981 display_row_range.start.0,
3982 status,
3983 multi_buffer_range.clone(),
3984 line_height,
3985 &editor,
3986 cx,
3987 );
3988 let size =
3989 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3990
3991 let x = text_hitbox.bounds.right()
3992 - self.style.scrollbar_width
3993 - px(10.)
3994 - size.width;
3995
3996 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3997 element.prepaint(window, cx)
3998 });
3999 controls.push(element);
4000 }
4001 }
4002 }
4003
4004 controls
4005 }
4006
4007 #[allow(clippy::too_many_arguments)]
4008 fn layout_signature_help(
4009 &self,
4010 hitbox: &Hitbox,
4011 content_origin: gpui::Point<Pixels>,
4012 scroll_pixel_position: gpui::Point<Pixels>,
4013 newest_selection_head: Option<DisplayPoint>,
4014 start_row: DisplayRow,
4015 line_layouts: &[LineWithInvisibles],
4016 line_height: Pixels,
4017 em_width: Pixels,
4018 window: &mut Window,
4019 cx: &mut App,
4020 ) {
4021 if !self.editor.focus_handle(cx).is_focused(window) {
4022 return;
4023 }
4024 let Some(newest_selection_head) = newest_selection_head else {
4025 return;
4026 };
4027 let selection_row = newest_selection_head.row();
4028 if selection_row < start_row {
4029 return;
4030 }
4031 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4032 else {
4033 return;
4034 };
4035
4036 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4037 - scroll_pixel_position.x
4038 + content_origin.x;
4039 let start_y =
4040 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4041
4042 let max_size = size(
4043 (120. * em_width) // Default size
4044 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4045 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4046 (16. * line_height) // Default size
4047 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4048 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4049 );
4050
4051 let maybe_element = self.editor.update(cx, |editor, cx| {
4052 if let Some(popover) = editor.signature_help_state.popover_mut() {
4053 let element = popover.render(max_size, cx);
4054 Some(element)
4055 } else {
4056 None
4057 }
4058 });
4059 if let Some(mut element) = maybe_element {
4060 let window_size = window.viewport_size();
4061 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4062 let mut point = point(start_x, start_y - size.height);
4063
4064 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4065 if point.x + size.width >= window_size.width {
4066 point.x = window_size.width - size.width;
4067 }
4068
4069 window.defer_draw(element, point, 1)
4070 }
4071 }
4072
4073 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4074 window.paint_layer(layout.hitbox.bounds, |window| {
4075 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4076 let gutter_bg = cx.theme().colors().editor_gutter_background;
4077 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4078 window.paint_quad(fill(
4079 layout.position_map.text_hitbox.bounds,
4080 self.style.background,
4081 ));
4082
4083 if let EditorMode::Full = layout.mode {
4084 let mut active_rows = layout.active_rows.iter().peekable();
4085 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4086 let mut end_row = start_row.0;
4087 while active_rows
4088 .peek()
4089 .map_or(false, |(active_row, has_selection)| {
4090 active_row.0 == end_row + 1
4091 && *has_selection == contains_non_empty_selection
4092 })
4093 {
4094 active_rows.next().unwrap();
4095 end_row += 1;
4096 }
4097
4098 if !contains_non_empty_selection {
4099 let highlight_h_range =
4100 match layout.position_map.snapshot.current_line_highlight {
4101 CurrentLineHighlight::Gutter => Some(Range {
4102 start: layout.hitbox.left(),
4103 end: layout.gutter_hitbox.right(),
4104 }),
4105 CurrentLineHighlight::Line => Some(Range {
4106 start: layout.position_map.text_hitbox.bounds.left(),
4107 end: layout.position_map.text_hitbox.bounds.right(),
4108 }),
4109 CurrentLineHighlight::All => Some(Range {
4110 start: layout.hitbox.left(),
4111 end: layout.hitbox.right(),
4112 }),
4113 CurrentLineHighlight::None => None,
4114 };
4115 if let Some(range) = highlight_h_range {
4116 let active_line_bg = cx.theme().colors().editor_active_line_background;
4117 let bounds = Bounds {
4118 origin: point(
4119 range.start,
4120 layout.hitbox.origin.y
4121 + (start_row.as_f32() - scroll_top)
4122 * layout.position_map.line_height,
4123 ),
4124 size: size(
4125 range.end - range.start,
4126 layout.position_map.line_height
4127 * (end_row - start_row.0 + 1) as f32,
4128 ),
4129 };
4130 window.paint_quad(fill(bounds, active_line_bg));
4131 }
4132 }
4133 }
4134
4135 let mut paint_highlight =
4136 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4137 let origin = point(
4138 layout.hitbox.origin.x,
4139 layout.hitbox.origin.y
4140 + (highlight_row_start.as_f32() - scroll_top)
4141 * layout.position_map.line_height,
4142 );
4143 let size = size(
4144 layout.hitbox.size.width,
4145 layout.position_map.line_height
4146 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4147 );
4148 window.paint_quad(fill(Bounds { origin, size }, color));
4149 };
4150
4151 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4152 for (&new_row, &new_background) in &layout.highlighted_rows {
4153 match &mut current_paint {
4154 Some((current_background, current_range)) => {
4155 let current_background = *current_background;
4156 let new_range_started = current_background != new_background
4157 || current_range.end.next_row() != new_row;
4158 if new_range_started {
4159 paint_highlight(
4160 current_range.start,
4161 current_range.end,
4162 current_background,
4163 );
4164 current_paint = Some((new_background, new_row..new_row));
4165 continue;
4166 } else {
4167 current_range.end = current_range.end.next_row();
4168 }
4169 }
4170 None => current_paint = Some((new_background, new_row..new_row)),
4171 };
4172 }
4173 if let Some((color, range)) = current_paint {
4174 paint_highlight(range.start, range.end, color);
4175 }
4176
4177 let scroll_left =
4178 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4179
4180 for (wrap_position, active) in layout.wrap_guides.iter() {
4181 let x = (layout.position_map.text_hitbox.origin.x
4182 + *wrap_position
4183 + layout.position_map.em_width / 2.)
4184 - scroll_left;
4185
4186 let show_scrollbars = {
4187 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4188
4189 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4190 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4191 };
4192
4193 if x < layout.position_map.text_hitbox.origin.x
4194 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4195 {
4196 continue;
4197 }
4198
4199 let color = if *active {
4200 cx.theme().colors().editor_active_wrap_guide
4201 } else {
4202 cx.theme().colors().editor_wrap_guide
4203 };
4204 window.paint_quad(fill(
4205 Bounds {
4206 origin: point(x, layout.position_map.text_hitbox.origin.y),
4207 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4208 },
4209 color,
4210 ));
4211 }
4212 }
4213 })
4214 }
4215
4216 fn paint_indent_guides(
4217 &mut self,
4218 layout: &mut EditorLayout,
4219 window: &mut Window,
4220 cx: &mut App,
4221 ) {
4222 let Some(indent_guides) = &layout.indent_guides else {
4223 return;
4224 };
4225
4226 let faded_color = |color: Hsla, alpha: f32| {
4227 let mut faded = color;
4228 faded.a = alpha;
4229 faded
4230 };
4231
4232 for indent_guide in indent_guides {
4233 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4234 let settings = indent_guide.settings;
4235
4236 // TODO fixed for now, expose them through themes later
4237 const INDENT_AWARE_ALPHA: f32 = 0.2;
4238 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4239 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4240 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4241
4242 let line_color = match (settings.coloring, indent_guide.active) {
4243 (IndentGuideColoring::Disabled, _) => None,
4244 (IndentGuideColoring::Fixed, false) => {
4245 Some(cx.theme().colors().editor_indent_guide)
4246 }
4247 (IndentGuideColoring::Fixed, true) => {
4248 Some(cx.theme().colors().editor_indent_guide_active)
4249 }
4250 (IndentGuideColoring::IndentAware, false) => {
4251 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4252 }
4253 (IndentGuideColoring::IndentAware, true) => {
4254 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4255 }
4256 };
4257
4258 let background_color = match (settings.background_coloring, indent_guide.active) {
4259 (IndentGuideBackgroundColoring::Disabled, _) => None,
4260 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4261 indent_accent_colors,
4262 INDENT_AWARE_BACKGROUND_ALPHA,
4263 )),
4264 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4265 indent_accent_colors,
4266 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4267 )),
4268 };
4269
4270 let requested_line_width = if indent_guide.active {
4271 settings.active_line_width
4272 } else {
4273 settings.line_width
4274 }
4275 .clamp(1, 10);
4276 let mut line_indicator_width = 0.;
4277 if let Some(color) = line_color {
4278 window.paint_quad(fill(
4279 Bounds {
4280 origin: indent_guide.origin,
4281 size: size(px(requested_line_width as f32), indent_guide.length),
4282 },
4283 color,
4284 ));
4285 line_indicator_width = requested_line_width as f32;
4286 }
4287
4288 if let Some(color) = background_color {
4289 let width = indent_guide.single_indent_width - px(line_indicator_width);
4290 window.paint_quad(fill(
4291 Bounds {
4292 origin: point(
4293 indent_guide.origin.x + px(line_indicator_width),
4294 indent_guide.origin.y,
4295 ),
4296 size: size(width, indent_guide.length),
4297 },
4298 color,
4299 ));
4300 }
4301 }
4302 }
4303
4304 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4305 let is_singleton = self.editor.read(cx).is_singleton(cx);
4306
4307 let line_height = layout.position_map.line_height;
4308 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4309
4310 for LineNumberLayout {
4311 shaped_line,
4312 hitbox,
4313 display_row,
4314 } in layout.line_numbers.values()
4315 {
4316 let Some(hitbox) = hitbox else {
4317 continue;
4318 };
4319
4320 let is_active = layout.active_rows.contains_key(&display_row);
4321
4322 let color = if is_active {
4323 cx.theme().colors().editor_active_line_number
4324 } else if !is_singleton && hitbox.is_hovered(window) {
4325 cx.theme().colors().editor_hover_line_number
4326 } else {
4327 cx.theme().colors().editor_line_number
4328 };
4329
4330 let Some(line) = self
4331 .shape_line_number(shaped_line.text.clone(), color, window)
4332 .log_err()
4333 else {
4334 continue;
4335 };
4336 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4337 continue;
4338 };
4339 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4340 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4341 if is_singleton {
4342 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4343 } else {
4344 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4345 }
4346 }
4347 }
4348
4349 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4350 let is_light = cx.theme().appearance().is_light();
4351
4352 if layout.display_hunks.is_empty() {
4353 return;
4354 }
4355
4356 let line_height = layout.position_map.line_height;
4357 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4358 for (hunk, hitbox) in &layout.display_hunks {
4359 let hunk_to_paint = match hunk {
4360 DisplayDiffHunk::Folded { .. } => {
4361 let hunk_bounds = Self::diff_hunk_bounds(
4362 &layout.position_map.snapshot,
4363 line_height,
4364 layout.gutter_hitbox.bounds,
4365 hunk,
4366 );
4367 Some((
4368 hunk_bounds,
4369 cx.theme().colors().version_control_modified,
4370 Corners::all(px(0.)),
4371 DiffHunkStatus::modified_none(),
4372 ))
4373 }
4374 DisplayDiffHunk::Unfolded {
4375 status,
4376 display_row_range,
4377 ..
4378 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4379 DiffHunkStatusKind::Added => (
4380 hunk_hitbox.bounds,
4381 cx.theme().colors().version_control_added,
4382 Corners::all(px(0.)),
4383 *status,
4384 ),
4385 DiffHunkStatusKind::Modified => (
4386 hunk_hitbox.bounds,
4387 cx.theme().colors().version_control_modified,
4388 Corners::all(px(0.)),
4389 *status,
4390 ),
4391 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4392 hunk_hitbox.bounds,
4393 cx.theme().colors().version_control_deleted,
4394 Corners::all(px(0.)),
4395 *status,
4396 ),
4397 DiffHunkStatusKind::Deleted => (
4398 Bounds::new(
4399 point(
4400 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4401 hunk_hitbox.origin.y,
4402 ),
4403 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4404 ),
4405 cx.theme().colors().version_control_deleted,
4406 Corners::all(1. * line_height),
4407 *status,
4408 ),
4409 }),
4410 };
4411
4412 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4413 hunk_to_paint
4414 {
4415 if secondary_status.has_secondary_hunk() {
4416 background_color =
4417 background_color.opacity(if is_light { 0.2 } else { 0.32 });
4418 }
4419 window.paint_quad(quad(
4420 hunk_bounds,
4421 corner_radii,
4422 background_color,
4423 Edges::default(),
4424 transparent_black(),
4425 ));
4426 }
4427 }
4428 });
4429 }
4430
4431 fn diff_hunk_bounds(
4432 snapshot: &EditorSnapshot,
4433 line_height: Pixels,
4434 gutter_bounds: Bounds<Pixels>,
4435 hunk: &DisplayDiffHunk,
4436 ) -> Bounds<Pixels> {
4437 let scroll_position = snapshot.scroll_position();
4438 let scroll_top = scroll_position.y * line_height;
4439 let gutter_strip_width = (0.275 * line_height).floor();
4440
4441 match hunk {
4442 DisplayDiffHunk::Folded { display_row, .. } => {
4443 let start_y = display_row.as_f32() * line_height - scroll_top;
4444 let end_y = start_y + line_height;
4445 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4446 let highlight_size = size(gutter_strip_width, end_y - start_y);
4447 Bounds::new(highlight_origin, highlight_size)
4448 }
4449 DisplayDiffHunk::Unfolded {
4450 display_row_range,
4451 status,
4452 ..
4453 } => {
4454 if status.is_deleted() && display_row_range.is_empty() {
4455 let row = display_row_range.start;
4456
4457 let offset = line_height / 2.;
4458 let start_y = row.as_f32() * line_height - offset - scroll_top;
4459 let end_y = start_y + line_height;
4460
4461 let width = (0.35 * line_height).floor();
4462 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4463 let highlight_size = size(width, end_y - start_y);
4464 Bounds::new(highlight_origin, highlight_size)
4465 } else {
4466 let start_row = display_row_range.start;
4467 let end_row = display_row_range.end;
4468 // If we're in a multibuffer, row range span might include an
4469 // excerpt header, so if we were to draw the marker straight away,
4470 // the hunk might include the rows of that header.
4471 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4472 // Instead, we simply check whether the range we're dealing with includes
4473 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4474 let end_row_in_current_excerpt = snapshot
4475 .blocks_in_range(start_row..end_row)
4476 .find_map(|(start_row, block)| {
4477 if matches!(block, Block::ExcerptBoundary { .. }) {
4478 Some(start_row)
4479 } else {
4480 None
4481 }
4482 })
4483 .unwrap_or(end_row);
4484
4485 let start_y = start_row.as_f32() * line_height - scroll_top;
4486 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4487
4488 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4489 let highlight_size = size(gutter_strip_width, end_y - start_y);
4490 Bounds::new(highlight_origin, highlight_size)
4491 }
4492 }
4493 }
4494 }
4495
4496 fn paint_gutter_indicators(
4497 &self,
4498 layout: &mut EditorLayout,
4499 window: &mut Window,
4500 cx: &mut App,
4501 ) {
4502 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4503 window.with_element_namespace("crease_toggles", |window| {
4504 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4505 crease_toggle.paint(window, cx);
4506 }
4507 });
4508
4509 for test_indicator in layout.test_indicators.iter_mut() {
4510 test_indicator.paint(window, cx);
4511 }
4512
4513 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4514 indicator.paint(window, cx);
4515 }
4516 });
4517 }
4518
4519 fn paint_gutter_highlights(
4520 &self,
4521 layout: &mut EditorLayout,
4522 window: &mut Window,
4523 cx: &mut App,
4524 ) {
4525 for (_, hunk_hitbox) in &layout.display_hunks {
4526 if let Some(hunk_hitbox) = hunk_hitbox {
4527 if !self
4528 .editor
4529 .read(cx)
4530 .buffer()
4531 .read(cx)
4532 .all_diff_hunks_expanded()
4533 {
4534 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4535 }
4536 }
4537 }
4538
4539 let show_git_gutter = layout
4540 .position_map
4541 .snapshot
4542 .show_git_diff_gutter
4543 .unwrap_or_else(|| {
4544 matches!(
4545 ProjectSettings::get_global(cx).git.git_gutter,
4546 Some(GitGutterSetting::TrackedFiles)
4547 )
4548 });
4549 if show_git_gutter {
4550 Self::paint_diff_hunks(layout, window, cx)
4551 }
4552
4553 let highlight_width = 0.275 * layout.position_map.line_height;
4554 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4555 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4556 for (range, color) in &layout.highlighted_gutter_ranges {
4557 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4558 layout.visible_display_row_range.start - DisplayRow(1)
4559 } else {
4560 range.start.row()
4561 };
4562 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4563 layout.visible_display_row_range.end + DisplayRow(1)
4564 } else {
4565 range.end.row()
4566 };
4567
4568 let start_y = layout.gutter_hitbox.top()
4569 + start_row.0 as f32 * layout.position_map.line_height
4570 - layout.position_map.scroll_pixel_position.y;
4571 let end_y = layout.gutter_hitbox.top()
4572 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4573 - layout.position_map.scroll_pixel_position.y;
4574 let bounds = Bounds::from_corners(
4575 point(layout.gutter_hitbox.left(), start_y),
4576 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4577 );
4578 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4579 }
4580 });
4581 }
4582
4583 fn paint_blamed_display_rows(
4584 &self,
4585 layout: &mut EditorLayout,
4586 window: &mut Window,
4587 cx: &mut App,
4588 ) {
4589 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4590 return;
4591 };
4592
4593 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4594 for mut blame_element in blamed_display_rows.into_iter() {
4595 blame_element.paint(window, cx);
4596 }
4597 })
4598 }
4599
4600 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4601 window.with_content_mask(
4602 Some(ContentMask {
4603 bounds: layout.position_map.text_hitbox.bounds,
4604 }),
4605 |window| {
4606 let cursor_style = if self
4607 .editor
4608 .read(cx)
4609 .hovered_link_state
4610 .as_ref()
4611 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4612 {
4613 CursorStyle::PointingHand
4614 } else {
4615 CursorStyle::IBeam
4616 };
4617 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4618
4619 let invisible_display_ranges = self.paint_highlights(layout, window);
4620 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4621 self.paint_redactions(layout, window);
4622 self.paint_cursors(layout, window, cx);
4623 self.paint_inline_diagnostics(layout, window, cx);
4624 self.paint_inline_blame(layout, window, cx);
4625 self.paint_diff_hunk_controls(layout, window, cx);
4626 window.with_element_namespace("crease_trailers", |window| {
4627 for trailer in layout.crease_trailers.iter_mut().flatten() {
4628 trailer.element.paint(window, cx);
4629 }
4630 });
4631 },
4632 )
4633 }
4634
4635 fn paint_highlights(
4636 &mut self,
4637 layout: &mut EditorLayout,
4638 window: &mut Window,
4639 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4640 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4641 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4642 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4643 for (range, color) in &layout.highlighted_ranges {
4644 self.paint_highlighted_range(
4645 range.clone(),
4646 *color,
4647 Pixels::ZERO,
4648 line_end_overshoot,
4649 layout,
4650 window,
4651 );
4652 }
4653
4654 let corner_radius = 0.15 * layout.position_map.line_height;
4655
4656 for (player_color, selections) in &layout.selections {
4657 for selection in selections.iter() {
4658 self.paint_highlighted_range(
4659 selection.range.clone(),
4660 player_color.selection,
4661 corner_radius,
4662 corner_radius * 2.,
4663 layout,
4664 window,
4665 );
4666
4667 if selection.is_local && !selection.range.is_empty() {
4668 invisible_display_ranges.push(selection.range.clone());
4669 }
4670 }
4671 }
4672 invisible_display_ranges
4673 })
4674 }
4675
4676 fn paint_lines(
4677 &mut self,
4678 invisible_display_ranges: &[Range<DisplayPoint>],
4679 layout: &mut EditorLayout,
4680 window: &mut Window,
4681 cx: &mut App,
4682 ) {
4683 let whitespace_setting = self
4684 .editor
4685 .read(cx)
4686 .buffer
4687 .read(cx)
4688 .settings_at(0, cx)
4689 .show_whitespaces;
4690
4691 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4692 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4693 line_with_invisibles.draw(
4694 layout,
4695 row,
4696 layout.content_origin,
4697 whitespace_setting,
4698 invisible_display_ranges,
4699 window,
4700 cx,
4701 )
4702 }
4703
4704 for line_element in &mut layout.line_elements {
4705 line_element.paint(window, cx);
4706 }
4707 }
4708
4709 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4710 if layout.redacted_ranges.is_empty() {
4711 return;
4712 }
4713
4714 let line_end_overshoot = layout.line_end_overshoot();
4715
4716 // A softer than perfect black
4717 let redaction_color = gpui::rgb(0x0e1111);
4718
4719 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4720 for range in layout.redacted_ranges.iter() {
4721 self.paint_highlighted_range(
4722 range.clone(),
4723 redaction_color.into(),
4724 Pixels::ZERO,
4725 line_end_overshoot,
4726 layout,
4727 window,
4728 );
4729 }
4730 });
4731 }
4732
4733 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4734 for cursor in &mut layout.visible_cursors {
4735 cursor.paint(layout.content_origin, window, cx);
4736 }
4737 }
4738
4739 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4740 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4741
4742 if let Some(scrollbar_layout) = scrollbar_x {
4743 let hitbox = scrollbar_layout.hitbox.clone();
4744 let text_unit_size = scrollbar_layout.text_unit_size;
4745 let visible_range = scrollbar_layout.visible_range.clone();
4746 let thumb_bounds = scrollbar_layout.thumb_bounds();
4747
4748 if scrollbar_layout.visible {
4749 window.paint_layer(hitbox.bounds, |window| {
4750 window.paint_quad(quad(
4751 hitbox.bounds,
4752 Corners::default(),
4753 cx.theme().colors().scrollbar_track_background,
4754 Edges {
4755 top: Pixels::ZERO,
4756 right: Pixels::ZERO,
4757 bottom: Pixels::ZERO,
4758 left: Pixels::ZERO,
4759 },
4760 cx.theme().colors().scrollbar_track_border,
4761 ));
4762
4763 window.paint_quad(quad(
4764 thumb_bounds,
4765 Corners::default(),
4766 cx.theme().colors().scrollbar_thumb_background,
4767 Edges {
4768 top: Pixels::ZERO,
4769 right: Pixels::ZERO,
4770 bottom: Pixels::ZERO,
4771 left: ScrollbarLayout::BORDER_WIDTH,
4772 },
4773 cx.theme().colors().scrollbar_thumb_border,
4774 ));
4775 })
4776 }
4777
4778 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4779
4780 window.on_mouse_event({
4781 let editor = self.editor.clone();
4782
4783 // there may be a way to avoid this clone
4784 let hitbox = hitbox.clone();
4785
4786 let mut mouse_position = window.mouse_position();
4787 move |event: &MouseMoveEvent, phase, window, cx| {
4788 if phase == DispatchPhase::Capture {
4789 return;
4790 }
4791
4792 editor.update(cx, |editor, cx| {
4793 if event.pressed_button == Some(MouseButton::Left)
4794 && editor
4795 .scroll_manager
4796 .is_dragging_scrollbar(Axis::Horizontal)
4797 {
4798 let x = mouse_position.x;
4799 let new_x = event.position.x;
4800 if (hitbox.left()..hitbox.right()).contains(&x) {
4801 let mut position = editor.scroll_position(cx);
4802
4803 position.x += (new_x - x) / text_unit_size;
4804 if position.x < 0.0 {
4805 position.x = 0.0;
4806 }
4807 editor.set_scroll_position(position, window, cx);
4808 }
4809
4810 cx.stop_propagation();
4811 } else {
4812 editor.scroll_manager.set_is_dragging_scrollbar(
4813 Axis::Horizontal,
4814 false,
4815 cx,
4816 );
4817
4818 if hitbox.is_hovered(window) {
4819 editor.scroll_manager.show_scrollbar(window, cx);
4820 }
4821 }
4822 mouse_position = event.position;
4823 })
4824 }
4825 });
4826
4827 if self
4828 .editor
4829 .read(cx)
4830 .scroll_manager
4831 .is_dragging_scrollbar(Axis::Horizontal)
4832 {
4833 window.on_mouse_event({
4834 let editor = self.editor.clone();
4835 move |_: &MouseUpEvent, phase, _, cx| {
4836 if phase == DispatchPhase::Capture {
4837 return;
4838 }
4839
4840 editor.update(cx, |editor, cx| {
4841 editor.scroll_manager.set_is_dragging_scrollbar(
4842 Axis::Horizontal,
4843 false,
4844 cx,
4845 );
4846 cx.stop_propagation();
4847 });
4848 }
4849 });
4850 } else {
4851 window.on_mouse_event({
4852 let editor = self.editor.clone();
4853
4854 move |event: &MouseDownEvent, phase, window, cx| {
4855 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4856 return;
4857 }
4858
4859 editor.update(cx, |editor, cx| {
4860 editor.scroll_manager.set_is_dragging_scrollbar(
4861 Axis::Horizontal,
4862 true,
4863 cx,
4864 );
4865
4866 let x = event.position.x;
4867
4868 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4869 let center_row =
4870 ((x - hitbox.left()) / text_unit_size).round() as u32;
4871 let top_row = center_row.saturating_sub(
4872 (visible_range.end - visible_range.start) as u32 / 2,
4873 );
4874
4875 let mut position = editor.scroll_position(cx);
4876 position.x = top_row as f32;
4877
4878 editor.set_scroll_position(position, window, cx);
4879 } else {
4880 editor.scroll_manager.show_scrollbar(window, cx);
4881 }
4882
4883 cx.stop_propagation();
4884 });
4885 }
4886 });
4887 }
4888 }
4889
4890 if let Some(scrollbar_layout) = scrollbar_y {
4891 let hitbox = scrollbar_layout.hitbox.clone();
4892 let text_unit_size = scrollbar_layout.text_unit_size;
4893 let visible_range = scrollbar_layout.visible_range.clone();
4894 let thumb_bounds = scrollbar_layout.thumb_bounds();
4895
4896 if scrollbar_layout.visible {
4897 window.paint_layer(hitbox.bounds, |window| {
4898 window.paint_quad(quad(
4899 hitbox.bounds,
4900 Corners::default(),
4901 cx.theme().colors().scrollbar_track_background,
4902 Edges {
4903 top: Pixels::ZERO,
4904 right: Pixels::ZERO,
4905 bottom: Pixels::ZERO,
4906 left: ScrollbarLayout::BORDER_WIDTH,
4907 },
4908 cx.theme().colors().scrollbar_track_border,
4909 ));
4910
4911 let fast_markers =
4912 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4913 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4914 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4915
4916 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4917 for marker in markers.iter().chain(&fast_markers) {
4918 let mut marker = marker.clone();
4919 marker.bounds.origin += hitbox.origin;
4920 window.paint_quad(marker);
4921 }
4922
4923 window.paint_quad(quad(
4924 thumb_bounds,
4925 Corners::default(),
4926 cx.theme().colors().scrollbar_thumb_background,
4927 Edges {
4928 top: Pixels::ZERO,
4929 right: Pixels::ZERO,
4930 bottom: Pixels::ZERO,
4931 left: ScrollbarLayout::BORDER_WIDTH,
4932 },
4933 cx.theme().colors().scrollbar_thumb_border,
4934 ));
4935 });
4936 }
4937
4938 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4939
4940 window.on_mouse_event({
4941 let editor = self.editor.clone();
4942
4943 let hitbox = hitbox.clone();
4944
4945 let mut mouse_position = window.mouse_position();
4946 move |event: &MouseMoveEvent, phase, window, cx| {
4947 if phase == DispatchPhase::Capture {
4948 return;
4949 }
4950
4951 editor.update(cx, |editor, cx| {
4952 if event.pressed_button == Some(MouseButton::Left)
4953 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4954 {
4955 let y = mouse_position.y;
4956 let new_y = event.position.y;
4957 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4958 let mut position = editor.scroll_position(cx);
4959 position.y += (new_y - y) / text_unit_size;
4960 if position.y < 0.0 {
4961 position.y = 0.0;
4962 }
4963 editor.set_scroll_position(position, window, cx);
4964 }
4965 } else {
4966 editor.scroll_manager.set_is_dragging_scrollbar(
4967 Axis::Vertical,
4968 false,
4969 cx,
4970 );
4971
4972 if hitbox.is_hovered(window) {
4973 editor.scroll_manager.show_scrollbar(window, cx);
4974 }
4975 }
4976 mouse_position = event.position;
4977 })
4978 }
4979 });
4980
4981 if self
4982 .editor
4983 .read(cx)
4984 .scroll_manager
4985 .is_dragging_scrollbar(Axis::Vertical)
4986 {
4987 window.on_mouse_event({
4988 let editor = self.editor.clone();
4989 move |_: &MouseUpEvent, phase, _, cx| {
4990 if phase == DispatchPhase::Capture {
4991 return;
4992 }
4993
4994 editor.update(cx, |editor, cx| {
4995 editor.scroll_manager.set_is_dragging_scrollbar(
4996 Axis::Vertical,
4997 false,
4998 cx,
4999 );
5000 cx.stop_propagation();
5001 });
5002 }
5003 });
5004 } else {
5005 window.on_mouse_event({
5006 let editor = self.editor.clone();
5007
5008 move |event: &MouseDownEvent, phase, window, cx| {
5009 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5010 return;
5011 }
5012
5013 editor.update(cx, |editor, cx| {
5014 editor.scroll_manager.set_is_dragging_scrollbar(
5015 Axis::Vertical,
5016 true,
5017 cx,
5018 );
5019
5020 let y = event.position.y;
5021 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5022 let center_row =
5023 ((y - hitbox.top()) / text_unit_size).round() as u32;
5024 let top_row = center_row.saturating_sub(
5025 (visible_range.end - visible_range.start) as u32 / 2,
5026 );
5027 let mut position = editor.scroll_position(cx);
5028 position.y = top_row as f32;
5029 editor.set_scroll_position(position, window, cx);
5030 } else {
5031 editor.scroll_manager.show_scrollbar(window, cx);
5032 }
5033
5034 cx.stop_propagation();
5035 });
5036 }
5037 });
5038 }
5039 }
5040 }
5041
5042 fn collect_fast_scrollbar_markers(
5043 &self,
5044 layout: &EditorLayout,
5045 scrollbar_layout: &ScrollbarLayout,
5046 cx: &mut App,
5047 ) -> Vec<PaintQuad> {
5048 const LIMIT: usize = 100;
5049 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5050 return vec![];
5051 }
5052 let cursor_ranges = layout
5053 .cursors
5054 .iter()
5055 .map(|(point, color)| ColoredRange {
5056 start: point.row(),
5057 end: point.row(),
5058 color: *color,
5059 })
5060 .collect_vec();
5061 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5062 }
5063
5064 fn refresh_slow_scrollbar_markers(
5065 &self,
5066 layout: &EditorLayout,
5067 scrollbar_layout: &ScrollbarLayout,
5068 window: &mut Window,
5069 cx: &mut App,
5070 ) {
5071 self.editor.update(cx, |editor, cx| {
5072 if !editor.is_singleton(cx)
5073 || !editor
5074 .scrollbar_marker_state
5075 .should_refresh(scrollbar_layout.hitbox.size)
5076 {
5077 return;
5078 }
5079
5080 let scrollbar_layout = scrollbar_layout.clone();
5081 let background_highlights = editor.background_highlights.clone();
5082 let snapshot = layout.position_map.snapshot.clone();
5083 let theme = cx.theme().clone();
5084 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5085
5086 editor.scrollbar_marker_state.dirty = false;
5087 editor.scrollbar_marker_state.pending_refresh =
5088 Some(cx.spawn_in(window, |editor, mut cx| async move {
5089 let scrollbar_size = scrollbar_layout.hitbox.size;
5090 let scrollbar_markers = cx
5091 .background_spawn(async move {
5092 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5093 let mut marker_quads = Vec::new();
5094 if scrollbar_settings.git_diff {
5095 let marker_row_ranges =
5096 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5097 let start_display_row =
5098 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5099 .to_display_point(&snapshot.display_snapshot)
5100 .row();
5101 let mut end_display_row =
5102 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5103 .to_display_point(&snapshot.display_snapshot)
5104 .row();
5105 if end_display_row != start_display_row {
5106 end_display_row.0 -= 1;
5107 }
5108 let color = match &hunk.status().kind {
5109 DiffHunkStatusKind::Added => {
5110 theme.colors().version_control_added
5111 }
5112 DiffHunkStatusKind::Modified => {
5113 theme.colors().version_control_modified
5114 }
5115 DiffHunkStatusKind::Deleted => {
5116 theme.colors().version_control_deleted
5117 }
5118 };
5119 ColoredRange {
5120 start: start_display_row,
5121 end: end_display_row,
5122 color,
5123 }
5124 });
5125
5126 marker_quads.extend(
5127 scrollbar_layout
5128 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5129 );
5130 }
5131
5132 for (background_highlight_id, (_, background_ranges)) in
5133 background_highlights.iter()
5134 {
5135 let is_search_highlights = *background_highlight_id
5136 == TypeId::of::<BufferSearchHighlights>();
5137 let is_text_highlights = *background_highlight_id
5138 == TypeId::of::<SelectedTextHighlight>();
5139 let is_symbol_occurrences = *background_highlight_id
5140 == TypeId::of::<DocumentHighlightRead>()
5141 || *background_highlight_id
5142 == TypeId::of::<DocumentHighlightWrite>();
5143 if (is_search_highlights && scrollbar_settings.search_results)
5144 || (is_text_highlights && scrollbar_settings.selected_text)
5145 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5146 {
5147 let mut color = theme.status().info;
5148 if is_symbol_occurrences {
5149 color.fade_out(0.5);
5150 }
5151 let marker_row_ranges = background_ranges.iter().map(|range| {
5152 let display_start = range
5153 .start
5154 .to_display_point(&snapshot.display_snapshot);
5155 let display_end =
5156 range.end.to_display_point(&snapshot.display_snapshot);
5157 ColoredRange {
5158 start: display_start.row(),
5159 end: display_end.row(),
5160 color,
5161 }
5162 });
5163 marker_quads.extend(
5164 scrollbar_layout
5165 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5166 );
5167 }
5168 }
5169
5170 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5171 let diagnostics = snapshot
5172 .buffer_snapshot
5173 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5174 // Don't show diagnostics the user doesn't care about
5175 .filter(|diagnostic| {
5176 match (
5177 scrollbar_settings.diagnostics,
5178 diagnostic.diagnostic.severity,
5179 ) {
5180 (ScrollbarDiagnostics::All, _) => true,
5181 (
5182 ScrollbarDiagnostics::Error,
5183 DiagnosticSeverity::ERROR,
5184 ) => true,
5185 (
5186 ScrollbarDiagnostics::Warning,
5187 DiagnosticSeverity::ERROR
5188 | DiagnosticSeverity::WARNING,
5189 ) => true,
5190 (
5191 ScrollbarDiagnostics::Information,
5192 DiagnosticSeverity::ERROR
5193 | DiagnosticSeverity::WARNING
5194 | DiagnosticSeverity::INFORMATION,
5195 ) => true,
5196 (_, _) => false,
5197 }
5198 })
5199 // We want to sort by severity, in order to paint the most severe diagnostics last.
5200 .sorted_by_key(|diagnostic| {
5201 std::cmp::Reverse(diagnostic.diagnostic.severity)
5202 });
5203
5204 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5205 let start_display = diagnostic
5206 .range
5207 .start
5208 .to_display_point(&snapshot.display_snapshot);
5209 let end_display = diagnostic
5210 .range
5211 .end
5212 .to_display_point(&snapshot.display_snapshot);
5213 let color = match diagnostic.diagnostic.severity {
5214 DiagnosticSeverity::ERROR => theme.status().error,
5215 DiagnosticSeverity::WARNING => theme.status().warning,
5216 DiagnosticSeverity::INFORMATION => theme.status().info,
5217 _ => theme.status().hint,
5218 };
5219 ColoredRange {
5220 start: start_display.row(),
5221 end: end_display.row(),
5222 color,
5223 }
5224 });
5225 marker_quads.extend(
5226 scrollbar_layout
5227 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5228 );
5229 }
5230
5231 Arc::from(marker_quads)
5232 })
5233 .await;
5234
5235 editor.update(&mut cx, |editor, cx| {
5236 editor.scrollbar_marker_state.markers = scrollbar_markers;
5237 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5238 editor.scrollbar_marker_state.pending_refresh = None;
5239 cx.notify();
5240 })?;
5241
5242 Ok(())
5243 }));
5244 });
5245 }
5246
5247 #[allow(clippy::too_many_arguments)]
5248 fn paint_highlighted_range(
5249 &self,
5250 range: Range<DisplayPoint>,
5251 color: Hsla,
5252 corner_radius: Pixels,
5253 line_end_overshoot: Pixels,
5254 layout: &EditorLayout,
5255 window: &mut Window,
5256 ) {
5257 let start_row = layout.visible_display_row_range.start;
5258 let end_row = layout.visible_display_row_range.end;
5259 if range.start != range.end {
5260 let row_range = if range.end.column() == 0 {
5261 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5262 } else {
5263 cmp::max(range.start.row(), start_row)
5264 ..cmp::min(range.end.row().next_row(), end_row)
5265 };
5266
5267 let highlighted_range = HighlightedRange {
5268 color,
5269 line_height: layout.position_map.line_height,
5270 corner_radius,
5271 start_y: layout.content_origin.y
5272 + row_range.start.as_f32() * layout.position_map.line_height
5273 - layout.position_map.scroll_pixel_position.y,
5274 lines: row_range
5275 .iter_rows()
5276 .map(|row| {
5277 let line_layout =
5278 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5279 HighlightedRangeLine {
5280 start_x: if row == range.start.row() {
5281 layout.content_origin.x
5282 + line_layout.x_for_index(range.start.column() as usize)
5283 - layout.position_map.scroll_pixel_position.x
5284 } else {
5285 layout.content_origin.x
5286 - layout.position_map.scroll_pixel_position.x
5287 },
5288 end_x: if row == range.end.row() {
5289 layout.content_origin.x
5290 + line_layout.x_for_index(range.end.column() as usize)
5291 - layout.position_map.scroll_pixel_position.x
5292 } else {
5293 layout.content_origin.x + line_layout.width + line_end_overshoot
5294 - layout.position_map.scroll_pixel_position.x
5295 },
5296 }
5297 })
5298 .collect(),
5299 };
5300
5301 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5302 }
5303 }
5304
5305 fn paint_inline_diagnostics(
5306 &mut self,
5307 layout: &mut EditorLayout,
5308 window: &mut Window,
5309 cx: &mut App,
5310 ) {
5311 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5312 inline_diagnostic.1.paint(window, cx);
5313 }
5314 }
5315
5316 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5317 if let Some(mut inline_blame) = layout.inline_blame.take() {
5318 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5319 inline_blame.paint(window, cx);
5320 })
5321 }
5322 }
5323
5324 fn paint_diff_hunk_controls(
5325 &mut self,
5326 layout: &mut EditorLayout,
5327 window: &mut Window,
5328 cx: &mut App,
5329 ) {
5330 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5331 diff_hunk_control.paint(window, cx);
5332 }
5333 }
5334
5335 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5336 for mut block in layout.blocks.drain(..) {
5337 block.element.paint(window, cx);
5338 }
5339 }
5340
5341 fn paint_inline_completion_popover(
5342 &mut self,
5343 layout: &mut EditorLayout,
5344 window: &mut Window,
5345 cx: &mut App,
5346 ) {
5347 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5348 inline_completion_popover.paint(window, cx);
5349 }
5350 }
5351
5352 fn paint_mouse_context_menu(
5353 &mut self,
5354 layout: &mut EditorLayout,
5355 window: &mut Window,
5356 cx: &mut App,
5357 ) {
5358 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5359 mouse_context_menu.paint(window, cx);
5360 }
5361 }
5362
5363 fn paint_scroll_wheel_listener(
5364 &mut self,
5365 layout: &EditorLayout,
5366 window: &mut Window,
5367 cx: &mut App,
5368 ) {
5369 window.on_mouse_event({
5370 let position_map = layout.position_map.clone();
5371 let editor = self.editor.clone();
5372 let hitbox = layout.hitbox.clone();
5373 let mut delta = ScrollDelta::default();
5374
5375 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5376 // accidentally turn off their scrolling.
5377 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5378
5379 move |event: &ScrollWheelEvent, phase, window, cx| {
5380 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5381 delta = delta.coalesce(event.delta);
5382 editor.update(cx, |editor, cx| {
5383 let position_map: &PositionMap = &position_map;
5384
5385 let line_height = position_map.line_height;
5386 let max_glyph_width = position_map.em_width;
5387 let (delta, axis) = match delta {
5388 gpui::ScrollDelta::Pixels(mut pixels) => {
5389 //Trackpad
5390 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5391 (pixels, axis)
5392 }
5393
5394 gpui::ScrollDelta::Lines(lines) => {
5395 //Not trackpad
5396 let pixels =
5397 point(lines.x * max_glyph_width, lines.y * line_height);
5398 (pixels, None)
5399 }
5400 };
5401
5402 let current_scroll_position = position_map.snapshot.scroll_position();
5403 let x = (current_scroll_position.x * max_glyph_width
5404 - (delta.x * scroll_sensitivity))
5405 / max_glyph_width;
5406 let y = (current_scroll_position.y * line_height
5407 - (delta.y * scroll_sensitivity))
5408 / line_height;
5409 let mut scroll_position =
5410 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5411 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5412 if forbid_vertical_scroll {
5413 scroll_position.y = current_scroll_position.y;
5414 }
5415
5416 if scroll_position != current_scroll_position {
5417 editor.scroll(scroll_position, axis, window, cx);
5418 cx.stop_propagation();
5419 } else if y < 0. {
5420 // Due to clamping, we may fail to detect cases of overscroll to the top;
5421 // We want the scroll manager to get an update in such cases and detect the change of direction
5422 // on the next frame.
5423 cx.notify();
5424 }
5425 });
5426 }
5427 }
5428 });
5429 }
5430
5431 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5432 self.paint_scroll_wheel_listener(layout, window, cx);
5433
5434 window.on_mouse_event({
5435 let position_map = layout.position_map.clone();
5436 let editor = self.editor.clone();
5437 let diff_hunk_range =
5438 layout
5439 .display_hunks
5440 .iter()
5441 .find_map(|(hunk, hunk_hitbox)| match hunk {
5442 DisplayDiffHunk::Folded { .. } => None,
5443 DisplayDiffHunk::Unfolded {
5444 multi_buffer_range, ..
5445 } => {
5446 if hunk_hitbox
5447 .as_ref()
5448 .map(|hitbox| hitbox.is_hovered(window))
5449 .unwrap_or(false)
5450 {
5451 Some(multi_buffer_range.clone())
5452 } else {
5453 None
5454 }
5455 }
5456 });
5457 let line_numbers = layout.line_numbers.clone();
5458
5459 move |event: &MouseDownEvent, phase, window, cx| {
5460 if phase == DispatchPhase::Bubble {
5461 match event.button {
5462 MouseButton::Left => editor.update(cx, |editor, cx| {
5463 let pending_mouse_down = editor
5464 .pending_mouse_down
5465 .get_or_insert_with(Default::default)
5466 .clone();
5467
5468 *pending_mouse_down.borrow_mut() = Some(event.clone());
5469
5470 Self::mouse_left_down(
5471 editor,
5472 event,
5473 diff_hunk_range.clone(),
5474 &position_map,
5475 line_numbers.as_ref(),
5476 window,
5477 cx,
5478 );
5479 }),
5480 MouseButton::Right => editor.update(cx, |editor, cx| {
5481 Self::mouse_right_down(editor, event, &position_map, window, cx);
5482 }),
5483 MouseButton::Middle => editor.update(cx, |editor, cx| {
5484 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5485 }),
5486 _ => {}
5487 };
5488 }
5489 }
5490 });
5491
5492 window.on_mouse_event({
5493 let editor = self.editor.clone();
5494 let position_map = layout.position_map.clone();
5495
5496 move |event: &MouseUpEvent, phase, window, cx| {
5497 if phase == DispatchPhase::Bubble {
5498 editor.update(cx, |editor, cx| {
5499 Self::mouse_up(editor, event, &position_map, window, cx)
5500 });
5501 }
5502 }
5503 });
5504
5505 window.on_mouse_event({
5506 let editor = self.editor.clone();
5507 let position_map = layout.position_map.clone();
5508 let mut captured_mouse_down = None;
5509
5510 move |event: &MouseUpEvent, phase, window, cx| match phase {
5511 // Clear the pending mouse down during the capture phase,
5512 // so that it happens even if another event handler stops
5513 // propagation.
5514 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5515 let pending_mouse_down = editor
5516 .pending_mouse_down
5517 .get_or_insert_with(Default::default)
5518 .clone();
5519
5520 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5521 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5522 captured_mouse_down = pending_mouse_down.take();
5523 window.refresh();
5524 }
5525 }),
5526 // Fire click handlers during the bubble phase.
5527 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5528 if let Some(mouse_down) = captured_mouse_down.take() {
5529 let event = ClickEvent {
5530 down: mouse_down,
5531 up: event.clone(),
5532 };
5533 Self::click(editor, &event, &position_map, window, cx);
5534 }
5535 }),
5536 }
5537 });
5538
5539 window.on_mouse_event({
5540 let position_map = layout.position_map.clone();
5541 let editor = self.editor.clone();
5542
5543 move |event: &MouseMoveEvent, phase, window, cx| {
5544 if phase == DispatchPhase::Bubble {
5545 editor.update(cx, |editor, cx| {
5546 if editor.hover_state.focused(window, cx) {
5547 return;
5548 }
5549 if event.pressed_button == Some(MouseButton::Left)
5550 || event.pressed_button == Some(MouseButton::Middle)
5551 {
5552 Self::mouse_dragged(editor, event, &position_map, window, cx)
5553 }
5554
5555 Self::mouse_moved(editor, event, &position_map, window, cx)
5556 });
5557 }
5558 }
5559 });
5560 }
5561
5562 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5563 bounds.top_right().x - self.style.scrollbar_width
5564 }
5565
5566 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5567 let style = &self.style;
5568 let font_size = style.text.font_size.to_pixels(window.rem_size());
5569 let layout = window
5570 .text_system()
5571 .shape_line(
5572 SharedString::from(" ".repeat(column)),
5573 font_size,
5574 &[TextRun {
5575 len: column,
5576 font: style.text.font(),
5577 color: Hsla::default(),
5578 background_color: None,
5579 underline: None,
5580 strikethrough: None,
5581 }],
5582 )
5583 .unwrap();
5584
5585 layout.width
5586 }
5587
5588 fn max_line_number_width(
5589 &self,
5590 snapshot: &EditorSnapshot,
5591 window: &mut Window,
5592 cx: &mut App,
5593 ) -> Pixels {
5594 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5595 self.column_pixels(digit_count, window, cx)
5596 }
5597
5598 fn shape_line_number(
5599 &self,
5600 text: SharedString,
5601 color: Hsla,
5602 window: &mut Window,
5603 ) -> anyhow::Result<ShapedLine> {
5604 let run = TextRun {
5605 len: text.len(),
5606 font: self.style.text.font(),
5607 color,
5608 background_color: None,
5609 underline: None,
5610 strikethrough: None,
5611 };
5612 window.text_system().shape_line(
5613 text,
5614 self.style.text.font_size.to_pixels(window.rem_size()),
5615 &[run],
5616 )
5617 }
5618}
5619
5620fn header_jump_data(
5621 snapshot: &EditorSnapshot,
5622 block_row_start: DisplayRow,
5623 height: u32,
5624 for_excerpt: &ExcerptInfo,
5625) -> JumpData {
5626 let range = &for_excerpt.range;
5627 let buffer = &for_excerpt.buffer;
5628 let jump_anchor = range
5629 .primary
5630 .as_ref()
5631 .map_or(range.context.start, |primary| primary.start);
5632
5633 let excerpt_start = range.context.start;
5634 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5635 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5636 0
5637 } else {
5638 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5639 jump_position.row.saturating_sub(excerpt_start_point.row)
5640 };
5641
5642 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5643 .saturating_sub(
5644 snapshot
5645 .scroll_anchor
5646 .scroll_position(&snapshot.display_snapshot)
5647 .y as u32,
5648 );
5649
5650 JumpData::MultiBufferPoint {
5651 excerpt_id: for_excerpt.id,
5652 anchor: jump_anchor,
5653 position: jump_position,
5654 line_offset_from_top,
5655 }
5656}
5657
5658pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5659
5660impl AcceptEditPredictionBinding {
5661 pub fn keystroke(&self) -> Option<&Keystroke> {
5662 if let Some(binding) = self.0.as_ref() {
5663 match &binding.keystrokes() {
5664 [keystroke] => Some(keystroke),
5665 _ => None,
5666 }
5667 } else {
5668 None
5669 }
5670 }
5671}
5672
5673#[allow(clippy::too_many_arguments)]
5674fn prepaint_gutter_button(
5675 button: IconButton,
5676 row: DisplayRow,
5677 line_height: Pixels,
5678 gutter_dimensions: &GutterDimensions,
5679 scroll_pixel_position: gpui::Point<Pixels>,
5680 gutter_hitbox: &Hitbox,
5681 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5682 window: &mut Window,
5683 cx: &mut App,
5684) -> AnyElement {
5685 let mut button = button.into_any_element();
5686 let available_space = size(
5687 AvailableSpace::MinContent,
5688 AvailableSpace::Definite(line_height),
5689 );
5690 let indicator_size = button.layout_as_root(available_space, window, cx);
5691
5692 let blame_width = gutter_dimensions.git_blame_entries_width;
5693 let gutter_width = rows_with_hunk_bounds
5694 .get(&row)
5695 .map(|bounds| bounds.size.width);
5696 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5697
5698 let mut x = left_offset;
5699 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5700 - indicator_size.width
5701 - left_offset;
5702 x += available_width / 2.;
5703
5704 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5705 y += (line_height - indicator_size.height) / 2.;
5706
5707 button.prepaint_as_root(
5708 gutter_hitbox.origin + point(x, y),
5709 available_space,
5710 window,
5711 cx,
5712 );
5713 button
5714}
5715
5716fn render_inline_blame_entry(
5717 editor: Entity<Editor>,
5718 blame: &gpui::Entity<GitBlame>,
5719 blame_entry: BlameEntry,
5720 style: &EditorStyle,
5721 cx: &mut App,
5722) -> AnyElement {
5723 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5724
5725 let author = blame_entry.author.as_deref().unwrap_or_default();
5726 let summary_enabled = ProjectSettings::get_global(cx)
5727 .git
5728 .show_inline_commit_summary();
5729
5730 let text = match blame_entry.summary.as_ref() {
5731 Some(summary) if summary_enabled => {
5732 format!("{}, {} - {}", author, relative_timestamp, summary)
5733 }
5734 _ => format!("{}, {}", author, relative_timestamp),
5735 };
5736 let blame = blame.clone();
5737 let blame_entry = blame_entry.clone();
5738
5739 h_flex()
5740 .id("inline-blame")
5741 .w_full()
5742 .font_family(style.text.font().family)
5743 .text_color(cx.theme().status().hint)
5744 .line_height(style.text.line_height)
5745 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5746 .child(text)
5747 .gap_2()
5748 .hoverable_tooltip(move |window, cx| {
5749 let details = blame.read(cx).details_for_entry(&blame_entry);
5750 let tooltip =
5751 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5752 editor.update(cx, |editor, _| {
5753 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5754 });
5755 tooltip.into()
5756 })
5757 .into_any()
5758}
5759
5760fn render_blame_entry(
5761 ix: usize,
5762 blame: &gpui::Entity<GitBlame>,
5763 blame_entry: BlameEntry,
5764 style: &EditorStyle,
5765 last_used_color: &mut Option<(PlayerColor, Oid)>,
5766 editor: Entity<Editor>,
5767 cx: &mut App,
5768) -> AnyElement {
5769 let mut sha_color = cx
5770 .theme()
5771 .players()
5772 .color_for_participant(blame_entry.sha.into());
5773 // If the last color we used is the same as the one we get for this line, but
5774 // the commit SHAs are different, then we try again to get a different color.
5775 match *last_used_color {
5776 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5777 let index: u32 = blame_entry.sha.into();
5778 sha_color = cx.theme().players().color_for_participant(index + 1);
5779 }
5780 _ => {}
5781 };
5782 last_used_color.replace((sha_color, blame_entry.sha));
5783
5784 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5785
5786 let short_commit_id = blame_entry.sha.display_short();
5787
5788 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5789 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5790 let details = blame.read(cx).details_for_entry(&blame_entry);
5791
5792 h_flex()
5793 .w_full()
5794 .justify_between()
5795 .font_family(style.text.font().family)
5796 .line_height(style.text.line_height)
5797 .id(("blame", ix))
5798 .text_color(cx.theme().status().hint)
5799 .pr_2()
5800 .gap_2()
5801 .child(
5802 h_flex()
5803 .items_center()
5804 .gap_2()
5805 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5806 .child(name),
5807 )
5808 .child(relative_timestamp)
5809 .on_mouse_down(MouseButton::Right, {
5810 let blame_entry = blame_entry.clone();
5811 let details = details.clone();
5812 move |event, window, cx| {
5813 deploy_blame_entry_context_menu(
5814 &blame_entry,
5815 details.as_ref(),
5816 editor.clone(),
5817 event.position,
5818 window,
5819 cx,
5820 );
5821 }
5822 })
5823 .hover(|style| style.bg(cx.theme().colors().element_hover))
5824 .when_some(
5825 details
5826 .as_ref()
5827 .and_then(|details| details.permalink.clone()),
5828 |this, url| {
5829 this.cursor_pointer().on_click(move |_, _, cx| {
5830 cx.stop_propagation();
5831 cx.open_url(url.as_str())
5832 })
5833 },
5834 )
5835 .hoverable_tooltip(move |window, cx| {
5836 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5837 .into()
5838 })
5839 .into_any()
5840}
5841
5842fn deploy_blame_entry_context_menu(
5843 blame_entry: &BlameEntry,
5844 details: Option<&ParsedCommitMessage>,
5845 editor: Entity<Editor>,
5846 position: gpui::Point<Pixels>,
5847 window: &mut Window,
5848 cx: &mut App,
5849) {
5850 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5851 let sha = format!("{}", blame_entry.sha);
5852 menu.on_blur_subscription(Subscription::new(|| {}))
5853 .entry("Copy commit SHA", None, move |_, cx| {
5854 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5855 })
5856 .when_some(
5857 details.and_then(|details| details.permalink.clone()),
5858 |this, url| {
5859 this.entry("Open permalink", None, move |_, cx| {
5860 cx.open_url(url.as_str())
5861 })
5862 },
5863 )
5864 });
5865
5866 editor.update(cx, move |editor, cx| {
5867 editor.mouse_context_menu = Some(MouseContextMenu::new(
5868 MenuPosition::PinnedToScreen(position),
5869 context_menu,
5870 window,
5871 cx,
5872 ));
5873 cx.notify();
5874 });
5875}
5876
5877#[derive(Debug)]
5878pub(crate) struct LineWithInvisibles {
5879 fragments: SmallVec<[LineFragment; 1]>,
5880 invisibles: Vec<Invisible>,
5881 len: usize,
5882 pub(crate) width: Pixels,
5883 font_size: Pixels,
5884}
5885
5886#[allow(clippy::large_enum_variant)]
5887enum LineFragment {
5888 Text(ShapedLine),
5889 Element {
5890 element: Option<AnyElement>,
5891 size: Size<Pixels>,
5892 len: usize,
5893 },
5894}
5895
5896impl fmt::Debug for LineFragment {
5897 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5898 match self {
5899 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5900 LineFragment::Element { size, len, .. } => f
5901 .debug_struct("Element")
5902 .field("size", size)
5903 .field("len", len)
5904 .finish(),
5905 }
5906 }
5907}
5908
5909impl LineWithInvisibles {
5910 #[allow(clippy::too_many_arguments)]
5911 fn from_chunks<'a>(
5912 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5913 editor_style: &EditorStyle,
5914 max_line_len: usize,
5915 max_line_count: usize,
5916 editor_mode: EditorMode,
5917 text_width: Pixels,
5918 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5919 window: &mut Window,
5920 cx: &mut App,
5921 ) -> Vec<Self> {
5922 let text_style = &editor_style.text;
5923 let mut layouts = Vec::with_capacity(max_line_count);
5924 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5925 let mut line = String::new();
5926 let mut invisibles = Vec::new();
5927 let mut width = Pixels::ZERO;
5928 let mut len = 0;
5929 let mut styles = Vec::new();
5930 let mut non_whitespace_added = false;
5931 let mut row = 0;
5932 let mut line_exceeded_max_len = false;
5933 let font_size = text_style.font_size.to_pixels(window.rem_size());
5934
5935 let ellipsis = SharedString::from("⋯");
5936
5937 for highlighted_chunk in chunks.chain([HighlightedChunk {
5938 text: "\n",
5939 style: None,
5940 is_tab: false,
5941 replacement: None,
5942 }]) {
5943 if let Some(replacement) = highlighted_chunk.replacement {
5944 if !line.is_empty() {
5945 let shaped_line = window
5946 .text_system()
5947 .shape_line(line.clone().into(), font_size, &styles)
5948 .unwrap();
5949 width += shaped_line.width;
5950 len += shaped_line.len;
5951 fragments.push(LineFragment::Text(shaped_line));
5952 line.clear();
5953 styles.clear();
5954 }
5955
5956 match replacement {
5957 ChunkReplacement::Renderer(renderer) => {
5958 let available_width = if renderer.constrain_width {
5959 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5960 ellipsis.clone()
5961 } else {
5962 SharedString::from(Arc::from(highlighted_chunk.text))
5963 };
5964 let shaped_line = window
5965 .text_system()
5966 .shape_line(
5967 chunk,
5968 font_size,
5969 &[text_style.to_run(highlighted_chunk.text.len())],
5970 )
5971 .unwrap();
5972 AvailableSpace::Definite(shaped_line.width)
5973 } else {
5974 AvailableSpace::MinContent
5975 };
5976
5977 let mut element = (renderer.render)(&mut ChunkRendererContext {
5978 context: cx,
5979 window,
5980 max_width: text_width,
5981 });
5982 let line_height = text_style.line_height_in_pixels(window.rem_size());
5983 let size = element.layout_as_root(
5984 size(available_width, AvailableSpace::Definite(line_height)),
5985 window,
5986 cx,
5987 );
5988
5989 width += size.width;
5990 len += highlighted_chunk.text.len();
5991 fragments.push(LineFragment::Element {
5992 element: Some(element),
5993 size,
5994 len: highlighted_chunk.text.len(),
5995 });
5996 }
5997 ChunkReplacement::Str(x) => {
5998 let text_style = if let Some(style) = highlighted_chunk.style {
5999 Cow::Owned(text_style.clone().highlight(style))
6000 } else {
6001 Cow::Borrowed(text_style)
6002 };
6003
6004 let run = TextRun {
6005 len: x.len(),
6006 font: text_style.font(),
6007 color: text_style.color,
6008 background_color: text_style.background_color,
6009 underline: text_style.underline,
6010 strikethrough: text_style.strikethrough,
6011 };
6012 let line_layout = window
6013 .text_system()
6014 .shape_line(x, font_size, &[run])
6015 .unwrap()
6016 .with_len(highlighted_chunk.text.len());
6017
6018 width += line_layout.width;
6019 len += highlighted_chunk.text.len();
6020 fragments.push(LineFragment::Text(line_layout))
6021 }
6022 }
6023 } else {
6024 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6025 if ix > 0 {
6026 let shaped_line = window
6027 .text_system()
6028 .shape_line(line.clone().into(), font_size, &styles)
6029 .unwrap();
6030 width += shaped_line.width;
6031 len += shaped_line.len;
6032 fragments.push(LineFragment::Text(shaped_line));
6033 layouts.push(Self {
6034 width: mem::take(&mut width),
6035 len: mem::take(&mut len),
6036 fragments: mem::take(&mut fragments),
6037 invisibles: std::mem::take(&mut invisibles),
6038 font_size,
6039 });
6040
6041 line.clear();
6042 styles.clear();
6043 row += 1;
6044 line_exceeded_max_len = false;
6045 non_whitespace_added = false;
6046 if row == max_line_count {
6047 return layouts;
6048 }
6049 }
6050
6051 if !line_chunk.is_empty() && !line_exceeded_max_len {
6052 let text_style = if let Some(style) = highlighted_chunk.style {
6053 Cow::Owned(text_style.clone().highlight(style))
6054 } else {
6055 Cow::Borrowed(text_style)
6056 };
6057
6058 if line.len() + line_chunk.len() > max_line_len {
6059 let mut chunk_len = max_line_len - line.len();
6060 while !line_chunk.is_char_boundary(chunk_len) {
6061 chunk_len -= 1;
6062 }
6063 line_chunk = &line_chunk[..chunk_len];
6064 line_exceeded_max_len = true;
6065 }
6066
6067 styles.push(TextRun {
6068 len: line_chunk.len(),
6069 font: text_style.font(),
6070 color: text_style.color,
6071 background_color: text_style.background_color,
6072 underline: text_style.underline,
6073 strikethrough: text_style.strikethrough,
6074 });
6075
6076 if editor_mode == EditorMode::Full {
6077 // Line wrap pads its contents with fake whitespaces,
6078 // avoid printing them
6079 let is_soft_wrapped = is_row_soft_wrapped(row);
6080 if highlighted_chunk.is_tab {
6081 if non_whitespace_added || !is_soft_wrapped {
6082 invisibles.push(Invisible::Tab {
6083 line_start_offset: line.len(),
6084 line_end_offset: line.len() + line_chunk.len(),
6085 });
6086 }
6087 } else {
6088 invisibles.extend(line_chunk.char_indices().filter_map(
6089 |(index, c)| {
6090 let is_whitespace = c.is_whitespace();
6091 non_whitespace_added |= !is_whitespace;
6092 if is_whitespace
6093 && (non_whitespace_added || !is_soft_wrapped)
6094 {
6095 Some(Invisible::Whitespace {
6096 line_offset: line.len() + index,
6097 })
6098 } else {
6099 None
6100 }
6101 },
6102 ))
6103 }
6104 }
6105
6106 line.push_str(line_chunk);
6107 }
6108 }
6109 }
6110 }
6111
6112 layouts
6113 }
6114
6115 #[allow(clippy::too_many_arguments)]
6116 fn prepaint(
6117 &mut self,
6118 line_height: Pixels,
6119 scroll_pixel_position: gpui::Point<Pixels>,
6120 row: DisplayRow,
6121 content_origin: gpui::Point<Pixels>,
6122 line_elements: &mut SmallVec<[AnyElement; 1]>,
6123 window: &mut Window,
6124 cx: &mut App,
6125 ) {
6126 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6127 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6128 for fragment in &mut self.fragments {
6129 match fragment {
6130 LineFragment::Text(line) => {
6131 fragment_origin.x += line.width;
6132 }
6133 LineFragment::Element { element, size, .. } => {
6134 let mut element = element
6135 .take()
6136 .expect("you can't prepaint LineWithInvisibles twice");
6137
6138 // Center the element vertically within the line.
6139 let mut element_origin = fragment_origin;
6140 element_origin.y += (line_height - size.height) / 2.;
6141 element.prepaint_at(element_origin, window, cx);
6142 line_elements.push(element);
6143
6144 fragment_origin.x += size.width;
6145 }
6146 }
6147 }
6148 }
6149
6150 #[allow(clippy::too_many_arguments)]
6151 fn draw(
6152 &self,
6153 layout: &EditorLayout,
6154 row: DisplayRow,
6155 content_origin: gpui::Point<Pixels>,
6156 whitespace_setting: ShowWhitespaceSetting,
6157 selection_ranges: &[Range<DisplayPoint>],
6158 window: &mut Window,
6159 cx: &mut App,
6160 ) {
6161 let line_height = layout.position_map.line_height;
6162 let line_y = line_height
6163 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6164
6165 let mut fragment_origin =
6166 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6167
6168 for fragment in &self.fragments {
6169 match fragment {
6170 LineFragment::Text(line) => {
6171 line.paint(fragment_origin, line_height, window, cx)
6172 .log_err();
6173 fragment_origin.x += line.width;
6174 }
6175 LineFragment::Element { size, .. } => {
6176 fragment_origin.x += size.width;
6177 }
6178 }
6179 }
6180
6181 self.draw_invisibles(
6182 selection_ranges,
6183 layout,
6184 content_origin,
6185 line_y,
6186 row,
6187 line_height,
6188 whitespace_setting,
6189 window,
6190 cx,
6191 );
6192 }
6193
6194 #[allow(clippy::too_many_arguments)]
6195 fn draw_invisibles(
6196 &self,
6197 selection_ranges: &[Range<DisplayPoint>],
6198 layout: &EditorLayout,
6199 content_origin: gpui::Point<Pixels>,
6200 line_y: Pixels,
6201 row: DisplayRow,
6202 line_height: Pixels,
6203 whitespace_setting: ShowWhitespaceSetting,
6204 window: &mut Window,
6205 cx: &mut App,
6206 ) {
6207 let extract_whitespace_info = |invisible: &Invisible| {
6208 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6209 Invisible::Tab {
6210 line_start_offset,
6211 line_end_offset,
6212 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6213 Invisible::Whitespace { line_offset } => {
6214 (*line_offset, line_offset + 1, &layout.space_invisible)
6215 }
6216 };
6217
6218 let x_offset = self.x_for_index(token_offset);
6219 let invisible_offset =
6220 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6221 let origin = content_origin
6222 + gpui::point(
6223 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6224 line_y,
6225 );
6226
6227 (
6228 [token_offset, token_end_offset],
6229 Box::new(move |window: &mut Window, cx: &mut App| {
6230 invisible_symbol
6231 .paint(origin, line_height, window, cx)
6232 .log_err();
6233 }),
6234 )
6235 };
6236
6237 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6238 match whitespace_setting {
6239 ShowWhitespaceSetting::None => (),
6240 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6241 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6242 let invisible_point = DisplayPoint::new(row, start as u32);
6243 if !selection_ranges
6244 .iter()
6245 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6246 {
6247 return;
6248 }
6249
6250 paint(window, cx);
6251 }),
6252
6253 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6254 // - It is a tab
6255 // - It is adjacent to an edge (start or end)
6256 // - It is adjacent to a whitespace (left or right)
6257 ShowWhitespaceSetting::Boundary => {
6258 // 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
6259 // the above cases.
6260 // Note: We zip in the original `invisibles` to check for tab equality
6261 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6262 for (([start, end], paint), invisible) in
6263 invisible_iter.zip_eq(self.invisibles.iter())
6264 {
6265 let should_render = match (&last_seen, invisible) {
6266 (_, Invisible::Tab { .. }) => true,
6267 (Some((_, last_end, _)), _) => *last_end == start,
6268 _ => false,
6269 };
6270
6271 if should_render || start == 0 || end == self.len {
6272 paint(window, cx);
6273
6274 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6275 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6276 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6277 // Note that we need to make sure that the last one is actually adjacent
6278 if !should_render_last && last_end == start {
6279 paint_last(window, cx);
6280 }
6281 }
6282 }
6283
6284 // Manually render anything within a selection
6285 let invisible_point = DisplayPoint::new(row, start as u32);
6286 if selection_ranges.iter().any(|region| {
6287 region.start <= invisible_point && invisible_point < region.end
6288 }) {
6289 paint(window, cx);
6290 }
6291
6292 last_seen = Some((should_render, end, paint));
6293 }
6294 }
6295 }
6296 }
6297
6298 pub fn x_for_index(&self, index: usize) -> Pixels {
6299 let mut fragment_start_x = Pixels::ZERO;
6300 let mut fragment_start_index = 0;
6301
6302 for fragment in &self.fragments {
6303 match fragment {
6304 LineFragment::Text(shaped_line) => {
6305 let fragment_end_index = fragment_start_index + shaped_line.len;
6306 if index < fragment_end_index {
6307 return fragment_start_x
6308 + shaped_line.x_for_index(index - fragment_start_index);
6309 }
6310 fragment_start_x += shaped_line.width;
6311 fragment_start_index = fragment_end_index;
6312 }
6313 LineFragment::Element { len, size, .. } => {
6314 let fragment_end_index = fragment_start_index + len;
6315 if index < fragment_end_index {
6316 return fragment_start_x;
6317 }
6318 fragment_start_x += size.width;
6319 fragment_start_index = fragment_end_index;
6320 }
6321 }
6322 }
6323
6324 fragment_start_x
6325 }
6326
6327 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6328 let mut fragment_start_x = Pixels::ZERO;
6329 let mut fragment_start_index = 0;
6330
6331 for fragment in &self.fragments {
6332 match fragment {
6333 LineFragment::Text(shaped_line) => {
6334 let fragment_end_x = fragment_start_x + shaped_line.width;
6335 if x < fragment_end_x {
6336 return Some(
6337 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6338 );
6339 }
6340 fragment_start_x = fragment_end_x;
6341 fragment_start_index += shaped_line.len;
6342 }
6343 LineFragment::Element { len, size, .. } => {
6344 let fragment_end_x = fragment_start_x + size.width;
6345 if x < fragment_end_x {
6346 return Some(fragment_start_index);
6347 }
6348 fragment_start_index += len;
6349 fragment_start_x = fragment_end_x;
6350 }
6351 }
6352 }
6353
6354 None
6355 }
6356
6357 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6358 let mut fragment_start_index = 0;
6359
6360 for fragment in &self.fragments {
6361 match fragment {
6362 LineFragment::Text(shaped_line) => {
6363 let fragment_end_index = fragment_start_index + shaped_line.len;
6364 if index < fragment_end_index {
6365 return shaped_line.font_id_for_index(index - fragment_start_index);
6366 }
6367 fragment_start_index = fragment_end_index;
6368 }
6369 LineFragment::Element { len, .. } => {
6370 let fragment_end_index = fragment_start_index + len;
6371 if index < fragment_end_index {
6372 return None;
6373 }
6374 fragment_start_index = fragment_end_index;
6375 }
6376 }
6377 }
6378
6379 None
6380 }
6381}
6382
6383#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6384enum Invisible {
6385 /// A tab character
6386 ///
6387 /// A tab character is internally represented by spaces (configured by the user's tab width)
6388 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6389 /// adjacency checks.
6390 Tab {
6391 line_start_offset: usize,
6392 line_end_offset: usize,
6393 },
6394 Whitespace {
6395 line_offset: usize,
6396 },
6397}
6398
6399impl EditorElement {
6400 /// Returns the rem size to use when rendering the [`EditorElement`].
6401 ///
6402 /// This allows UI elements to scale based on the `buffer_font_size`.
6403 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6404 match self.editor.read(cx).mode {
6405 EditorMode::Full => {
6406 let buffer_font_size = self.style.text.font_size;
6407 match buffer_font_size {
6408 AbsoluteLength::Pixels(pixels) => {
6409 let rem_size_scale = {
6410 // Our default UI font size is 14px on a 16px base scale.
6411 // This means the default UI font size is 0.875rems.
6412 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6413
6414 // We then determine the delta between a single rem and the default font
6415 // size scale.
6416 let default_font_size_delta = 1. - default_font_size_scale;
6417
6418 // Finally, we add this delta to 1rem to get the scale factor that
6419 // should be used to scale up the UI.
6420 1. + default_font_size_delta
6421 };
6422
6423 Some(pixels * rem_size_scale)
6424 }
6425 AbsoluteLength::Rems(rems) => {
6426 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6427 }
6428 }
6429 }
6430 // We currently use single-line and auto-height editors in UI contexts,
6431 // so we don't want to scale everything with the buffer font size, as it
6432 // ends up looking off.
6433 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6434 }
6435 }
6436}
6437
6438impl Element for EditorElement {
6439 type RequestLayoutState = ();
6440 type PrepaintState = EditorLayout;
6441
6442 fn id(&self) -> Option<ElementId> {
6443 None
6444 }
6445
6446 fn request_layout(
6447 &mut self,
6448 _: Option<&GlobalElementId>,
6449 window: &mut Window,
6450 cx: &mut App,
6451 ) -> (gpui::LayoutId, ()) {
6452 let rem_size = self.rem_size(cx);
6453 window.with_rem_size(rem_size, |window| {
6454 self.editor.update(cx, |editor, cx| {
6455 editor.set_style(self.style.clone(), window, cx);
6456
6457 let layout_id = match editor.mode {
6458 EditorMode::SingleLine { auto_width } => {
6459 let rem_size = window.rem_size();
6460
6461 let height = self.style.text.line_height_in_pixels(rem_size);
6462 if auto_width {
6463 let editor_handle = cx.entity().clone();
6464 let style = self.style.clone();
6465 window.request_measured_layout(
6466 Style::default(),
6467 move |_, _, window, cx| {
6468 let editor_snapshot = editor_handle
6469 .update(cx, |editor, cx| editor.snapshot(window, cx));
6470 let line = Self::layout_lines(
6471 DisplayRow(0)..DisplayRow(1),
6472 &editor_snapshot,
6473 &style,
6474 px(f32::MAX),
6475 |_| false, // Single lines never soft wrap
6476 window,
6477 cx,
6478 )
6479 .pop()
6480 .unwrap();
6481
6482 let font_id =
6483 window.text_system().resolve_font(&style.text.font());
6484 let font_size =
6485 style.text.font_size.to_pixels(window.rem_size());
6486 let em_width =
6487 window.text_system().em_width(font_id, font_size).unwrap();
6488
6489 size(line.width + em_width, height)
6490 },
6491 )
6492 } else {
6493 let mut style = Style::default();
6494 style.size.height = height.into();
6495 style.size.width = relative(1.).into();
6496 window.request_layout(style, None, cx)
6497 }
6498 }
6499 EditorMode::AutoHeight { max_lines } => {
6500 let editor_handle = cx.entity().clone();
6501 let max_line_number_width =
6502 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6503 window.request_measured_layout(
6504 Style::default(),
6505 move |known_dimensions, available_space, window, cx| {
6506 editor_handle
6507 .update(cx, |editor, cx| {
6508 compute_auto_height_layout(
6509 editor,
6510 max_lines,
6511 max_line_number_width,
6512 known_dimensions,
6513 available_space.width,
6514 window,
6515 cx,
6516 )
6517 })
6518 .unwrap_or_default()
6519 },
6520 )
6521 }
6522 EditorMode::Full => {
6523 let mut style = Style::default();
6524 style.size.width = relative(1.).into();
6525 style.size.height = relative(1.).into();
6526 window.request_layout(style, None, cx)
6527 }
6528 };
6529
6530 (layout_id, ())
6531 })
6532 })
6533 }
6534
6535 fn prepaint(
6536 &mut self,
6537 _: Option<&GlobalElementId>,
6538 bounds: Bounds<Pixels>,
6539 _: &mut Self::RequestLayoutState,
6540 window: &mut Window,
6541 cx: &mut App,
6542 ) -> Self::PrepaintState {
6543 let text_style = TextStyleRefinement {
6544 font_size: Some(self.style.text.font_size),
6545 line_height: Some(self.style.text.line_height),
6546 ..Default::default()
6547 };
6548 let focus_handle = self.editor.focus_handle(cx);
6549 window.set_view_id(self.editor.entity_id());
6550 window.set_focus_handle(&focus_handle, cx);
6551
6552 let rem_size = self.rem_size(cx);
6553 window.with_rem_size(rem_size, |window| {
6554 window.with_text_style(Some(text_style), |window| {
6555 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6556 let mut snapshot = self
6557 .editor
6558 .update(cx, |editor, cx| editor.snapshot(window, cx));
6559 let style = self.style.clone();
6560
6561 let font_id = window.text_system().resolve_font(&style.text.font());
6562 let font_size = style.text.font_size.to_pixels(window.rem_size());
6563 let line_height = style.text.line_height_in_pixels(window.rem_size());
6564 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6565 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6566
6567 let letter_size = size(em_width, line_height);
6568
6569 let gutter_dimensions = snapshot
6570 .gutter_dimensions(
6571 font_id,
6572 font_size,
6573 self.max_line_number_width(&snapshot, window, cx),
6574 cx,
6575 )
6576 .unwrap_or_default();
6577 let text_width = bounds.size.width - gutter_dimensions.width;
6578
6579 let editor_width =
6580 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6581
6582 snapshot = self.editor.update(cx, |editor, cx| {
6583 editor.last_bounds = Some(bounds);
6584 editor.gutter_dimensions = gutter_dimensions;
6585 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6586
6587 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6588 snapshot
6589 } else {
6590 let wrap_width = match editor.soft_wrap_mode(cx) {
6591 SoftWrap::GitDiff => None,
6592 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6593 SoftWrap::EditorWidth => Some(editor_width),
6594 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6595 SoftWrap::Bounded(column) => {
6596 Some(editor_width.min(column as f32 * em_advance))
6597 }
6598 };
6599
6600 if editor.set_wrap_width(wrap_width, cx) {
6601 editor.snapshot(window, cx)
6602 } else {
6603 snapshot
6604 }
6605 }
6606 });
6607
6608 let wrap_guides = self
6609 .editor
6610 .read(cx)
6611 .wrap_guides(cx)
6612 .iter()
6613 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6614 .collect::<SmallVec<[_; 2]>>();
6615
6616 let hitbox = window.insert_hitbox(bounds, false);
6617 let gutter_hitbox =
6618 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6619 let text_hitbox = window.insert_hitbox(
6620 Bounds {
6621 origin: gutter_hitbox.top_right(),
6622 size: size(text_width, bounds.size.height),
6623 },
6624 false,
6625 );
6626 // Offset the content_bounds from the text_bounds by the gutter margin (which
6627 // is roughly half a character wide) to make hit testing work more like how we want.
6628 let content_origin =
6629 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6630
6631 let scrollbar_bounds =
6632 Bounds::from_corners(content_origin, bounds.bottom_right());
6633
6634 let height_in_lines = scrollbar_bounds.size.height / line_height;
6635
6636 // NOTE: The max row number in the current file, minus one
6637 let max_row = snapshot.max_point().row().as_f32();
6638
6639 // NOTE: The max scroll position for the top of the window
6640 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6641 (max_row - height_in_lines + 1.).max(0.)
6642 } else {
6643 let settings = EditorSettings::get_global(cx);
6644 match settings.scroll_beyond_last_line {
6645 ScrollBeyondLastLine::OnePage => max_row,
6646 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6647 ScrollBeyondLastLine::VerticalScrollMargin => {
6648 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6649 .max(0.)
6650 }
6651 }
6652 };
6653
6654 // TODO: Autoscrolling for both axes
6655 let mut autoscroll_request = None;
6656 let mut autoscroll_containing_element = false;
6657 let mut autoscroll_horizontally = false;
6658 self.editor.update(cx, |editor, cx| {
6659 autoscroll_request = editor.autoscroll_request();
6660 autoscroll_containing_element =
6661 autoscroll_request.is_some() || editor.has_pending_selection();
6662 // TODO: Is this horizontal or vertical?!
6663 autoscroll_horizontally = editor.autoscroll_vertically(
6664 bounds,
6665 line_height,
6666 max_scroll_top,
6667 window,
6668 cx,
6669 );
6670 snapshot = editor.snapshot(window, cx);
6671 });
6672
6673 let mut scroll_position = snapshot.scroll_position();
6674 // The scroll position is a fractional point, the whole number of which represents
6675 // the top of the window in terms of display rows.
6676 let start_row = DisplayRow(scroll_position.y as u32);
6677 let max_row = snapshot.max_point().row();
6678 let end_row = cmp::min(
6679 (scroll_position.y + height_in_lines).ceil() as u32,
6680 max_row.next_row().0,
6681 );
6682 let end_row = DisplayRow(end_row);
6683
6684 let row_infos = snapshot
6685 .row_infos(start_row)
6686 .take((start_row..end_row).len())
6687 .collect::<Vec<RowInfo>>();
6688 let is_row_soft_wrapped = |row: usize| {
6689 row_infos
6690 .get(row)
6691 .map_or(true, |info| info.buffer_row.is_none())
6692 };
6693
6694 let start_anchor = if start_row == Default::default() {
6695 Anchor::min()
6696 } else {
6697 snapshot.buffer_snapshot.anchor_before(
6698 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6699 )
6700 };
6701 let end_anchor = if end_row > max_row {
6702 Anchor::max()
6703 } else {
6704 snapshot.buffer_snapshot.anchor_before(
6705 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6706 )
6707 };
6708
6709 let mut highlighted_rows = self
6710 .editor
6711 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6712
6713 let is_light = cx.theme().appearance().is_light();
6714
6715 for (ix, row_info) in row_infos.iter().enumerate() {
6716 let Some(diff_status) = row_info.diff_status else {
6717 continue;
6718 };
6719
6720 let staged_opacity = if is_light { 0.14 } else { 0.10 };
6721 let unstaged_opacity = 0.04;
6722
6723 let background_color = match diff_status.kind {
6724 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6725 DiffHunkStatusKind::Deleted => {
6726 cx.theme().colors().version_control_deleted
6727 }
6728 DiffHunkStatusKind::Modified => {
6729 debug_panic!("modified diff status for row info");
6730 continue;
6731 }
6732 };
6733 let background_color = if diff_status.has_secondary_hunk() {
6734 background_color.opacity(unstaged_opacity)
6735 } else {
6736 background_color.opacity(staged_opacity)
6737 };
6738
6739 highlighted_rows
6740 .entry(start_row + DisplayRow(ix as u32))
6741 .or_insert(background_color.into());
6742 }
6743
6744 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6745 start_anchor..end_anchor,
6746 &snapshot.display_snapshot,
6747 cx.theme().colors(),
6748 );
6749 let highlighted_gutter_ranges =
6750 self.editor.read(cx).gutter_highlights_in_range(
6751 start_anchor..end_anchor,
6752 &snapshot.display_snapshot,
6753 cx,
6754 );
6755
6756 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6757 start_anchor..end_anchor,
6758 &snapshot.display_snapshot,
6759 cx,
6760 );
6761
6762 let (local_selections, selected_buffer_ids): (
6763 Vec<Selection<Point>>,
6764 Vec<BufferId>,
6765 ) = self.editor.update(cx, |editor, cx| {
6766 let all_selections = editor.selections.all::<Point>(cx);
6767 let selected_buffer_ids = if editor.is_singleton(cx) {
6768 Vec::new()
6769 } else {
6770 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6771
6772 for selection in all_selections {
6773 for buffer_id in snapshot
6774 .buffer_snapshot
6775 .buffer_ids_for_range(selection.range())
6776 {
6777 if selected_buffer_ids.last() != Some(&buffer_id) {
6778 selected_buffer_ids.push(buffer_id);
6779 }
6780 }
6781 }
6782
6783 selected_buffer_ids
6784 };
6785
6786 let mut selections = editor
6787 .selections
6788 .disjoint_in_range(start_anchor..end_anchor, cx);
6789 selections.extend(editor.selections.pending(cx));
6790
6791 (selections, selected_buffer_ids)
6792 });
6793
6794 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6795 start_anchor,
6796 end_anchor,
6797 &local_selections,
6798 &snapshot,
6799 start_row,
6800 end_row,
6801 window,
6802 cx,
6803 );
6804
6805 let line_numbers = self.layout_line_numbers(
6806 Some(&gutter_hitbox),
6807 gutter_dimensions,
6808 line_height,
6809 scroll_position,
6810 start_row..end_row,
6811 &row_infos,
6812 newest_selection_head,
6813 &snapshot,
6814 window,
6815 cx,
6816 );
6817
6818 let mut crease_toggles =
6819 window.with_element_namespace("crease_toggles", |window| {
6820 self.layout_crease_toggles(
6821 start_row..end_row,
6822 &row_infos,
6823 &active_rows,
6824 &snapshot,
6825 window,
6826 cx,
6827 )
6828 });
6829 let crease_trailers =
6830 window.with_element_namespace("crease_trailers", |window| {
6831 self.layout_crease_trailers(
6832 row_infos.iter().copied(),
6833 &snapshot,
6834 window,
6835 cx,
6836 )
6837 });
6838
6839 let display_hunks = self.layout_gutter_diff_hunks(
6840 line_height,
6841 &gutter_hitbox,
6842 start_row..end_row,
6843 &snapshot,
6844 window,
6845 cx,
6846 );
6847
6848 let mut line_layouts = Self::layout_lines(
6849 start_row..end_row,
6850 &snapshot,
6851 &self.style,
6852 editor_width,
6853 is_row_soft_wrapped,
6854 window,
6855 cx,
6856 );
6857
6858 let longest_line_blame_width = self
6859 .editor
6860 .update(cx, |editor, cx| {
6861 if !editor.show_git_blame_inline {
6862 return None;
6863 }
6864 let blame = editor.blame.as_ref()?;
6865 let blame_entry = blame
6866 .update(cx, |blame, cx| {
6867 let row_infos =
6868 snapshot.row_infos(snapshot.longest_row()).next()?;
6869 blame.blame_for_rows(&[row_infos], cx).next()
6870 })
6871 .flatten()?;
6872 let mut element = render_inline_blame_entry(
6873 self.editor.clone(),
6874 blame,
6875 blame_entry,
6876 &style,
6877 cx,
6878 );
6879 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6880 Some(
6881 element
6882 .layout_as_root(AvailableSpace::min_size(), window, cx)
6883 .width
6884 + inline_blame_padding,
6885 )
6886 })
6887 .unwrap_or(Pixels::ZERO);
6888
6889 let longest_line_width = layout_line(
6890 snapshot.longest_row(),
6891 &snapshot,
6892 &style,
6893 editor_width,
6894 is_row_soft_wrapped,
6895 window,
6896 cx,
6897 )
6898 .width;
6899
6900 let scrollbar_range_data = ScrollbarRangeData::new(
6901 scrollbar_bounds,
6902 letter_size,
6903 &snapshot,
6904 longest_line_width,
6905 longest_line_blame_width,
6906 &style,
6907 editor_width,
6908 cx,
6909 );
6910
6911 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6912 let mut scroll_width = scroll_range_bounds.size.width;
6913
6914 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6915 snapshot.sticky_header_excerpt(start_row)
6916 } else {
6917 None
6918 };
6919 let sticky_header_excerpt_id =
6920 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6921
6922 let blocks = window.with_element_namespace("blocks", |window| {
6923 self.render_blocks(
6924 start_row..end_row,
6925 &snapshot,
6926 &hitbox,
6927 &text_hitbox,
6928 editor_width,
6929 &mut scroll_width,
6930 &gutter_dimensions,
6931 em_width,
6932 gutter_dimensions.full_width(),
6933 line_height,
6934 &line_layouts,
6935 &local_selections,
6936 &selected_buffer_ids,
6937 is_row_soft_wrapped,
6938 sticky_header_excerpt_id,
6939 window,
6940 cx,
6941 )
6942 });
6943 let mut blocks = match blocks {
6944 Ok(blocks) => blocks,
6945 Err(resized_blocks) => {
6946 self.editor.update(cx, |editor, cx| {
6947 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6948 });
6949 return self.prepaint(None, bounds, &mut (), window, cx);
6950 }
6951 };
6952
6953 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6954 window.with_element_namespace("blocks", |window| {
6955 self.layout_sticky_buffer_header(
6956 sticky_header_excerpt,
6957 scroll_position.y,
6958 line_height,
6959 &snapshot,
6960 &hitbox,
6961 &selected_buffer_ids,
6962 window,
6963 cx,
6964 )
6965 })
6966 });
6967
6968 let start_buffer_row =
6969 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6970 let end_buffer_row =
6971 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6972
6973 let scroll_max = point(
6974 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6975 max_row.as_f32(),
6976 );
6977
6978 self.editor.update(cx, |editor, cx| {
6979 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6980
6981 let autoscrolled = if autoscroll_horizontally {
6982 editor.autoscroll_horizontally(
6983 start_row,
6984 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
6985 scroll_width,
6986 em_width,
6987 &line_layouts,
6988 cx,
6989 )
6990 } else {
6991 false
6992 };
6993
6994 if clamped || autoscrolled {
6995 snapshot = editor.snapshot(window, cx);
6996 scroll_position = snapshot.scroll_position();
6997 }
6998 });
6999
7000 let scroll_pixel_position = point(
7001 scroll_position.x * em_width,
7002 scroll_position.y * line_height,
7003 );
7004
7005 let indent_guides = self.layout_indent_guides(
7006 content_origin,
7007 text_hitbox.origin,
7008 start_buffer_row..end_buffer_row,
7009 scroll_pixel_position,
7010 line_height,
7011 &snapshot,
7012 window,
7013 cx,
7014 );
7015
7016 let crease_trailers =
7017 window.with_element_namespace("crease_trailers", |window| {
7018 self.prepaint_crease_trailers(
7019 crease_trailers,
7020 &line_layouts,
7021 line_height,
7022 content_origin,
7023 scroll_pixel_position,
7024 em_width,
7025 window,
7026 cx,
7027 )
7028 });
7029
7030 let (inline_completion_popover, inline_completion_popover_origin) = self
7031 .editor
7032 .update(cx, |editor, cx| {
7033 editor.render_edit_prediction_popover(
7034 &text_hitbox.bounds,
7035 content_origin,
7036 &snapshot,
7037 start_row..end_row,
7038 scroll_position.y,
7039 scroll_position.y + height_in_lines,
7040 &line_layouts,
7041 line_height,
7042 scroll_pixel_position,
7043 newest_selection_head,
7044 editor_width,
7045 &style,
7046 window,
7047 cx,
7048 )
7049 })
7050 .unzip();
7051
7052 let mut inline_diagnostics = self.layout_inline_diagnostics(
7053 &line_layouts,
7054 &crease_trailers,
7055 content_origin,
7056 scroll_pixel_position,
7057 inline_completion_popover_origin,
7058 start_row,
7059 end_row,
7060 line_height,
7061 em_width,
7062 &style,
7063 window,
7064 cx,
7065 );
7066
7067 let mut inline_blame = None;
7068 if let Some(newest_selection_head) = newest_selection_head {
7069 let display_row = newest_selection_head.row();
7070 if (start_row..end_row).contains(&display_row) {
7071 let line_ix = display_row.minus(start_row) as usize;
7072 let row_info = &row_infos[line_ix];
7073 let line_layout = &line_layouts[line_ix];
7074 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7075 inline_blame = self.layout_inline_blame(
7076 display_row,
7077 row_info,
7078 line_layout,
7079 crease_trailer_layout,
7080 em_width,
7081 content_origin,
7082 scroll_pixel_position,
7083 line_height,
7084 window,
7085 cx,
7086 );
7087 if inline_blame.is_some() {
7088 // Blame overrides inline diagnostics
7089 inline_diagnostics.remove(&display_row);
7090 }
7091 }
7092 }
7093
7094 let blamed_display_rows = self.layout_blame_entries(
7095 &row_infos,
7096 em_width,
7097 scroll_position,
7098 line_height,
7099 &gutter_hitbox,
7100 gutter_dimensions.git_blame_entries_width,
7101 window,
7102 cx,
7103 );
7104
7105 let scroll_max = point(
7106 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7107 max_scroll_top,
7108 );
7109
7110 self.editor.update(cx, |editor, cx| {
7111 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7112
7113 let autoscrolled = if autoscroll_horizontally {
7114 editor.autoscroll_horizontally(
7115 start_row,
7116 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7117 scroll_width,
7118 em_width,
7119 &line_layouts,
7120 cx,
7121 )
7122 } else {
7123 false
7124 };
7125
7126 if clamped || autoscrolled {
7127 snapshot = editor.snapshot(window, cx);
7128 scroll_position = snapshot.scroll_position();
7129 }
7130 });
7131
7132 let line_elements = self.prepaint_lines(
7133 start_row,
7134 &mut line_layouts,
7135 line_height,
7136 scroll_pixel_position,
7137 content_origin,
7138 window,
7139 cx,
7140 );
7141
7142 let mut block_start_rows = HashSet::default();
7143
7144 window.with_element_namespace("blocks", |window| {
7145 self.layout_blocks(
7146 &mut blocks,
7147 &mut block_start_rows,
7148 &hitbox,
7149 line_height,
7150 scroll_pixel_position,
7151 window,
7152 cx,
7153 );
7154 });
7155
7156 let cursors = self.collect_cursors(&snapshot, cx);
7157 let visible_row_range = start_row..end_row;
7158 let non_visible_cursors = cursors
7159 .iter()
7160 .any(|c| !visible_row_range.contains(&c.0.row()));
7161
7162 let visible_cursors = self.layout_visible_cursors(
7163 &snapshot,
7164 &selections,
7165 &block_start_rows,
7166 start_row..end_row,
7167 &line_layouts,
7168 &text_hitbox,
7169 content_origin,
7170 scroll_position,
7171 scroll_pixel_position,
7172 line_height,
7173 em_width,
7174 em_advance,
7175 autoscroll_containing_element,
7176 window,
7177 cx,
7178 );
7179
7180 let scrollbars_layout = self.layout_scrollbars(
7181 &snapshot,
7182 scrollbar_range_data,
7183 scroll_position,
7184 non_visible_cursors,
7185 window,
7186 cx,
7187 );
7188
7189 let gutter_settings = EditorSettings::get_global(cx).gutter;
7190
7191 let rows_with_hunk_bounds = display_hunks
7192 .iter()
7193 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7194 .fold(
7195 HashMap::default(),
7196 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7197 match hunk {
7198 DisplayDiffHunk::Folded { display_row } => {
7199 rows_with_hunk_bounds.insert(*display_row, bounds);
7200 }
7201 DisplayDiffHunk::Unfolded {
7202 display_row_range, ..
7203 } => {
7204 for display_row in display_row_range.iter_rows() {
7205 rows_with_hunk_bounds.insert(display_row, bounds);
7206 }
7207 }
7208 }
7209 rows_with_hunk_bounds
7210 },
7211 );
7212 let mut code_actions_indicator = None;
7213 if let Some(newest_selection_head) = newest_selection_head {
7214 let newest_selection_point =
7215 newest_selection_head.to_point(&snapshot.display_snapshot);
7216
7217 if (start_row..end_row).contains(&newest_selection_head.row()) {
7218 self.layout_cursor_popovers(
7219 line_height,
7220 &text_hitbox,
7221 content_origin,
7222 start_row,
7223 scroll_pixel_position,
7224 &line_layouts,
7225 newest_selection_head,
7226 newest_selection_point,
7227 &style,
7228 window,
7229 cx,
7230 );
7231
7232 let show_code_actions = snapshot
7233 .show_code_actions
7234 .unwrap_or(gutter_settings.code_actions);
7235 if show_code_actions {
7236 let newest_selection_point =
7237 newest_selection_head.to_point(&snapshot.display_snapshot);
7238 if !snapshot
7239 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7240 {
7241 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7242 MultiBufferRow(newest_selection_point.row),
7243 );
7244 if let Some((buffer, range)) = buffer {
7245 let buffer_id = buffer.remote_id();
7246 let row = range.start.row;
7247 let has_test_indicator = self
7248 .editor
7249 .read(cx)
7250 .tasks
7251 .contains_key(&(buffer_id, row));
7252
7253 if !has_test_indicator {
7254 code_actions_indicator = self
7255 .layout_code_actions_indicator(
7256 line_height,
7257 newest_selection_head,
7258 scroll_pixel_position,
7259 &gutter_dimensions,
7260 &gutter_hitbox,
7261 &rows_with_hunk_bounds,
7262 window,
7263 cx,
7264 );
7265 }
7266 }
7267 }
7268 }
7269 }
7270 }
7271
7272 self.layout_gutter_menu(
7273 line_height,
7274 &text_hitbox,
7275 content_origin,
7276 scroll_pixel_position,
7277 gutter_dimensions.width - gutter_dimensions.left_padding,
7278 window,
7279 cx,
7280 );
7281
7282 let test_indicators = if gutter_settings.runnables {
7283 self.layout_run_indicators(
7284 line_height,
7285 start_row..end_row,
7286 scroll_pixel_position,
7287 &gutter_dimensions,
7288 &gutter_hitbox,
7289 &rows_with_hunk_bounds,
7290 &snapshot,
7291 window,
7292 cx,
7293 )
7294 } else {
7295 Vec::new()
7296 };
7297
7298 self.layout_signature_help(
7299 &hitbox,
7300 content_origin,
7301 scroll_pixel_position,
7302 newest_selection_head,
7303 start_row,
7304 &line_layouts,
7305 line_height,
7306 em_width,
7307 window,
7308 cx,
7309 );
7310
7311 if !cx.has_active_drag() {
7312 self.layout_hover_popovers(
7313 &snapshot,
7314 &hitbox,
7315 &text_hitbox,
7316 start_row..end_row,
7317 content_origin,
7318 scroll_pixel_position,
7319 &line_layouts,
7320 line_height,
7321 em_width,
7322 window,
7323 cx,
7324 );
7325 }
7326
7327 let mouse_context_menu = self.layout_mouse_context_menu(
7328 &snapshot,
7329 start_row..end_row,
7330 content_origin,
7331 window,
7332 cx,
7333 );
7334
7335 window.with_element_namespace("crease_toggles", |window| {
7336 self.prepaint_crease_toggles(
7337 &mut crease_toggles,
7338 line_height,
7339 &gutter_dimensions,
7340 gutter_settings,
7341 scroll_pixel_position,
7342 &gutter_hitbox,
7343 window,
7344 cx,
7345 )
7346 });
7347
7348 let invisible_symbol_font_size = font_size / 2.;
7349 let tab_invisible = window
7350 .text_system()
7351 .shape_line(
7352 "→".into(),
7353 invisible_symbol_font_size,
7354 &[TextRun {
7355 len: "→".len(),
7356 font: self.style.text.font(),
7357 color: cx.theme().colors().editor_invisible,
7358 background_color: None,
7359 underline: None,
7360 strikethrough: None,
7361 }],
7362 )
7363 .unwrap();
7364 let space_invisible = window
7365 .text_system()
7366 .shape_line(
7367 "•".into(),
7368 invisible_symbol_font_size,
7369 &[TextRun {
7370 len: "•".len(),
7371 font: self.style.text.font(),
7372 color: cx.theme().colors().editor_invisible,
7373 background_color: None,
7374 underline: None,
7375 strikethrough: None,
7376 }],
7377 )
7378 .unwrap();
7379
7380 let mode = snapshot.mode;
7381
7382 let position_map = Rc::new(PositionMap {
7383 size: bounds.size,
7384 visible_row_range,
7385 scroll_pixel_position,
7386 scroll_max,
7387 line_layouts,
7388 line_height,
7389 em_width,
7390 em_advance,
7391 snapshot,
7392 gutter_hitbox: gutter_hitbox.clone(),
7393 text_hitbox: text_hitbox.clone(),
7394 });
7395
7396 self.editor.update(cx, |editor, _| {
7397 editor.last_position_map = Some(position_map.clone())
7398 });
7399
7400 let diff_hunk_controls = self.layout_diff_hunk_controls(
7401 start_row..end_row,
7402 &row_infos,
7403 &text_hitbox,
7404 &position_map,
7405 newest_selection_head,
7406 line_height,
7407 scroll_pixel_position,
7408 &display_hunks,
7409 self.editor.clone(),
7410 window,
7411 cx,
7412 );
7413
7414 EditorLayout {
7415 mode,
7416 position_map,
7417 visible_display_row_range: start_row..end_row,
7418 wrap_guides,
7419 indent_guides,
7420 hitbox,
7421 gutter_hitbox,
7422 display_hunks,
7423 content_origin,
7424 scrollbars_layout,
7425 active_rows,
7426 highlighted_rows,
7427 highlighted_ranges,
7428 highlighted_gutter_ranges,
7429 redacted_ranges,
7430 line_elements,
7431 line_numbers,
7432 blamed_display_rows,
7433 inline_diagnostics,
7434 inline_blame,
7435 blocks,
7436 cursors,
7437 visible_cursors,
7438 selections,
7439 inline_completion_popover,
7440 diff_hunk_controls,
7441 mouse_context_menu,
7442 test_indicators,
7443 code_actions_indicator,
7444 crease_toggles,
7445 crease_trailers,
7446 tab_invisible,
7447 space_invisible,
7448 sticky_buffer_header,
7449 }
7450 })
7451 })
7452 })
7453 }
7454
7455 fn paint(
7456 &mut self,
7457 _: Option<&GlobalElementId>,
7458 bounds: Bounds<gpui::Pixels>,
7459 _: &mut Self::RequestLayoutState,
7460 layout: &mut Self::PrepaintState,
7461 window: &mut Window,
7462 cx: &mut App,
7463 ) {
7464 let focus_handle = self.editor.focus_handle(cx);
7465 let key_context = self
7466 .editor
7467 .update(cx, |editor, cx| editor.key_context(window, cx));
7468
7469 window.set_key_context(key_context);
7470 window.handle_input(
7471 &focus_handle,
7472 ElementInputHandler::new(bounds, self.editor.clone()),
7473 cx,
7474 );
7475 self.register_actions(window, cx);
7476 self.register_key_listeners(window, cx, layout);
7477
7478 let text_style = TextStyleRefinement {
7479 font_size: Some(self.style.text.font_size),
7480 line_height: Some(self.style.text.line_height),
7481 ..Default::default()
7482 };
7483 let rem_size = self.rem_size(cx);
7484 window.with_rem_size(rem_size, |window| {
7485 window.with_text_style(Some(text_style), |window| {
7486 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7487 self.paint_mouse_listeners(layout, window, cx);
7488 self.paint_background(layout, window, cx);
7489 self.paint_indent_guides(layout, window, cx);
7490
7491 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7492 self.paint_blamed_display_rows(layout, window, cx);
7493 self.paint_line_numbers(layout, window, cx);
7494 }
7495
7496 self.paint_text(layout, window, cx);
7497
7498 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7499 self.paint_gutter_highlights(layout, window, cx);
7500 self.paint_gutter_indicators(layout, window, cx);
7501 }
7502
7503 if !layout.blocks.is_empty() {
7504 window.with_element_namespace("blocks", |window| {
7505 self.paint_blocks(layout, window, cx);
7506 });
7507 }
7508
7509 window.with_element_namespace("blocks", |window| {
7510 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7511 sticky_header.paint(window, cx)
7512 }
7513 });
7514
7515 self.paint_scrollbars(layout, window, cx);
7516 self.paint_inline_completion_popover(layout, window, cx);
7517 self.paint_mouse_context_menu(layout, window, cx);
7518 });
7519 })
7520 })
7521 }
7522}
7523
7524pub(super) fn gutter_bounds(
7525 editor_bounds: Bounds<Pixels>,
7526 gutter_dimensions: GutterDimensions,
7527) -> Bounds<Pixels> {
7528 Bounds {
7529 origin: editor_bounds.origin,
7530 size: size(gutter_dimensions.width, editor_bounds.size.height),
7531 }
7532}
7533
7534struct ScrollbarRangeData {
7535 scrollbar_bounds: Bounds<Pixels>,
7536 scroll_range: Bounds<Pixels>,
7537 letter_size: Size<Pixels>,
7538}
7539
7540impl ScrollbarRangeData {
7541 #[allow(clippy::too_many_arguments)]
7542 pub fn new(
7543 scrollbar_bounds: Bounds<Pixels>,
7544 letter_size: Size<Pixels>,
7545 snapshot: &EditorSnapshot,
7546 longest_line_width: Pixels,
7547 longest_line_blame_width: Pixels,
7548 style: &EditorStyle,
7549 editor_width: Pixels,
7550 cx: &mut App,
7551 ) -> ScrollbarRangeData {
7552 // TODO: Simplify this function down, it requires a lot of parameters
7553 let max_row = snapshot.max_point().row();
7554 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7555
7556 let settings = EditorSettings::get_global(cx);
7557 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7558 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7559 ScrollBeyondLastLine::Off => px(1.),
7560 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7561 };
7562
7563 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7564 letter_size.width + style.scrollbar_width
7565 } else {
7566 px(0.0)
7567 };
7568
7569 let overscroll = size(
7570 right_margin + longest_line_blame_width,
7571 letter_size.height * scroll_beyond_last_line,
7572 );
7573
7574 let scroll_range = Bounds {
7575 origin: scrollbar_bounds.origin,
7576 size: text_bounds_size + overscroll,
7577 };
7578
7579 ScrollbarRangeData {
7580 scrollbar_bounds,
7581 scroll_range,
7582 letter_size,
7583 }
7584 }
7585}
7586
7587impl IntoElement for EditorElement {
7588 type Element = Self;
7589
7590 fn into_element(self) -> Self::Element {
7591 self
7592 }
7593}
7594
7595pub struct EditorLayout {
7596 position_map: Rc<PositionMap>,
7597 hitbox: Hitbox,
7598 gutter_hitbox: Hitbox,
7599 content_origin: gpui::Point<Pixels>,
7600 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7601 mode: EditorMode,
7602 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7603 indent_guides: Option<Vec<IndentGuideLayout>>,
7604 visible_display_row_range: Range<DisplayRow>,
7605 active_rows: BTreeMap<DisplayRow, bool>,
7606 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7607 line_elements: SmallVec<[AnyElement; 1]>,
7608 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7609 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7610 blamed_display_rows: Option<Vec<AnyElement>>,
7611 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7612 inline_blame: Option<AnyElement>,
7613 blocks: Vec<BlockLayout>,
7614 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7615 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7616 redacted_ranges: Vec<Range<DisplayPoint>>,
7617 cursors: Vec<(DisplayPoint, Hsla)>,
7618 visible_cursors: Vec<CursorLayout>,
7619 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7620 code_actions_indicator: Option<AnyElement>,
7621 test_indicators: Vec<AnyElement>,
7622 crease_toggles: Vec<Option<AnyElement>>,
7623 diff_hunk_controls: Vec<AnyElement>,
7624 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7625 inline_completion_popover: Option<AnyElement>,
7626 mouse_context_menu: Option<AnyElement>,
7627 tab_invisible: ShapedLine,
7628 space_invisible: ShapedLine,
7629 sticky_buffer_header: Option<AnyElement>,
7630}
7631
7632impl EditorLayout {
7633 fn line_end_overshoot(&self) -> Pixels {
7634 0.15 * self.position_map.line_height
7635 }
7636}
7637
7638struct LineNumberLayout {
7639 shaped_line: ShapedLine,
7640 hitbox: Option<Hitbox>,
7641 display_row: DisplayRow,
7642}
7643
7644struct ColoredRange<T> {
7645 start: T,
7646 end: T,
7647 color: Hsla,
7648}
7649
7650#[derive(Clone)]
7651struct ScrollbarLayout {
7652 hitbox: Hitbox,
7653 visible_range: Range<f32>,
7654 visible: bool,
7655 text_unit_size: Pixels,
7656 thumb_size: Pixels,
7657 axis: Axis,
7658}
7659
7660impl ScrollbarLayout {
7661 const BORDER_WIDTH: Pixels = px(1.0);
7662 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7663 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7664 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7665
7666 fn thumb_bounds(&self) -> Bounds<Pixels> {
7667 match self.axis {
7668 Axis::Vertical => {
7669 let thumb_top = self.y_for_row(self.visible_range.start);
7670 let thumb_bottom = thumb_top + self.thumb_size;
7671 Bounds::from_corners(
7672 point(self.hitbox.left(), thumb_top),
7673 point(self.hitbox.right(), thumb_bottom),
7674 )
7675 }
7676 Axis::Horizontal => {
7677 let thumb_left =
7678 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7679 let thumb_right = thumb_left + self.thumb_size;
7680 Bounds::from_corners(
7681 point(thumb_left, self.hitbox.top()),
7682 point(thumb_right, self.hitbox.bottom()),
7683 )
7684 }
7685 }
7686 }
7687
7688 fn y_for_row(&self, row: f32) -> Pixels {
7689 self.hitbox.top() + row * self.text_unit_size
7690 }
7691
7692 fn marker_quads_for_ranges(
7693 &self,
7694 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7695 column: Option<usize>,
7696 ) -> Vec<PaintQuad> {
7697 struct MinMax {
7698 min: Pixels,
7699 max: Pixels,
7700 }
7701 let (x_range, height_limit) = if let Some(column) = column {
7702 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7703 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7704 let end = start + column_width;
7705 (
7706 Range { start, end },
7707 MinMax {
7708 min: Self::MIN_MARKER_HEIGHT,
7709 max: px(f32::MAX),
7710 },
7711 )
7712 } else {
7713 (
7714 Range {
7715 start: Self::BORDER_WIDTH,
7716 end: self.hitbox.size.width,
7717 },
7718 MinMax {
7719 min: Self::LINE_MARKER_HEIGHT,
7720 max: Self::LINE_MARKER_HEIGHT,
7721 },
7722 )
7723 };
7724
7725 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7726 let mut pixel_ranges = row_ranges
7727 .into_iter()
7728 .map(|range| {
7729 let start_y = row_to_y(range.start);
7730 let end_y = row_to_y(range.end)
7731 + self
7732 .text_unit_size
7733 .max(height_limit.min)
7734 .min(height_limit.max);
7735 ColoredRange {
7736 start: start_y,
7737 end: end_y,
7738 color: range.color,
7739 }
7740 })
7741 .peekable();
7742
7743 let mut quads = Vec::new();
7744 while let Some(mut pixel_range) = pixel_ranges.next() {
7745 while let Some(next_pixel_range) = pixel_ranges.peek() {
7746 if pixel_range.end >= next_pixel_range.start - px(1.0)
7747 && pixel_range.color == next_pixel_range.color
7748 {
7749 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7750 pixel_ranges.next();
7751 } else {
7752 break;
7753 }
7754 }
7755
7756 let bounds = Bounds::from_corners(
7757 point(x_range.start, pixel_range.start),
7758 point(x_range.end, pixel_range.end),
7759 );
7760 quads.push(quad(
7761 bounds,
7762 Corners::default(),
7763 pixel_range.color,
7764 Edges::default(),
7765 Hsla::transparent_black(),
7766 ));
7767 }
7768
7769 quads
7770 }
7771}
7772
7773struct CreaseTrailerLayout {
7774 element: AnyElement,
7775 bounds: Bounds<Pixels>,
7776}
7777
7778pub(crate) struct PositionMap {
7779 pub size: Size<Pixels>,
7780 pub line_height: Pixels,
7781 pub scroll_pixel_position: gpui::Point<Pixels>,
7782 pub scroll_max: gpui::Point<f32>,
7783 pub em_width: Pixels,
7784 pub em_advance: Pixels,
7785 pub visible_row_range: Range<DisplayRow>,
7786 pub line_layouts: Vec<LineWithInvisibles>,
7787 pub snapshot: EditorSnapshot,
7788 pub text_hitbox: Hitbox,
7789 pub gutter_hitbox: Hitbox,
7790}
7791
7792#[derive(Debug, Copy, Clone)]
7793pub struct PointForPosition {
7794 pub previous_valid: DisplayPoint,
7795 pub next_valid: DisplayPoint,
7796 pub exact_unclipped: DisplayPoint,
7797 pub column_overshoot_after_line_end: u32,
7798}
7799
7800impl PointForPosition {
7801 pub fn as_valid(&self) -> Option<DisplayPoint> {
7802 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7803 Some(self.previous_valid)
7804 } else {
7805 None
7806 }
7807 }
7808}
7809
7810impl PositionMap {
7811 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7812 let text_bounds = self.text_hitbox.bounds;
7813 let scroll_position = self.snapshot.scroll_position();
7814 let position = position - text_bounds.origin;
7815 let y = position.y.max(px(0.)).min(self.size.height);
7816 let x = position.x + (scroll_position.x * self.em_width);
7817 let row = ((y / self.line_height) + scroll_position.y) as u32;
7818
7819 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7820 .line_layouts
7821 .get(row as usize - scroll_position.y as usize)
7822 {
7823 if let Some(ix) = line.index_for_x(x) {
7824 (ix as u32, px(0.))
7825 } else {
7826 (line.len as u32, px(0.).max(x - line.width))
7827 }
7828 } else {
7829 (0, x)
7830 };
7831
7832 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7833 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7834 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7835
7836 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7837 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7838 PointForPosition {
7839 previous_valid,
7840 next_valid,
7841 exact_unclipped,
7842 column_overshoot_after_line_end,
7843 }
7844 }
7845}
7846
7847struct BlockLayout {
7848 id: BlockId,
7849 row: Option<DisplayRow>,
7850 element: AnyElement,
7851 available_space: Size<AvailableSpace>,
7852 style: BlockStyle,
7853}
7854
7855pub fn layout_line(
7856 row: DisplayRow,
7857 snapshot: &EditorSnapshot,
7858 style: &EditorStyle,
7859 text_width: Pixels,
7860 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7861 window: &mut Window,
7862 cx: &mut App,
7863) -> LineWithInvisibles {
7864 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7865 LineWithInvisibles::from_chunks(
7866 chunks,
7867 &style,
7868 MAX_LINE_LEN,
7869 1,
7870 snapshot.mode,
7871 text_width,
7872 is_row_soft_wrapped,
7873 window,
7874 cx,
7875 )
7876 .pop()
7877 .unwrap()
7878}
7879
7880#[derive(Debug)]
7881pub struct IndentGuideLayout {
7882 origin: gpui::Point<Pixels>,
7883 length: Pixels,
7884 single_indent_width: Pixels,
7885 depth: u32,
7886 active: bool,
7887 settings: IndentGuideSettings,
7888}
7889
7890pub struct CursorLayout {
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 cursor_name: Option<AnyElement>,
7898}
7899
7900#[derive(Debug)]
7901pub struct CursorName {
7902 string: SharedString,
7903 color: Hsla,
7904 is_top_row: bool,
7905}
7906
7907impl CursorLayout {
7908 pub fn new(
7909 origin: gpui::Point<Pixels>,
7910 block_width: Pixels,
7911 line_height: Pixels,
7912 color: Hsla,
7913 shape: CursorShape,
7914 block_text: Option<ShapedLine>,
7915 ) -> CursorLayout {
7916 CursorLayout {
7917 origin,
7918 block_width,
7919 line_height,
7920 color,
7921 shape,
7922 block_text,
7923 cursor_name: None,
7924 }
7925 }
7926
7927 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7928 Bounds {
7929 origin: self.origin + origin,
7930 size: size(self.block_width, self.line_height),
7931 }
7932 }
7933
7934 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7935 match self.shape {
7936 CursorShape::Bar => Bounds {
7937 origin: self.origin + origin,
7938 size: size(px(2.0), self.line_height),
7939 },
7940 CursorShape::Block | CursorShape::Hollow => Bounds {
7941 origin: self.origin + origin,
7942 size: size(self.block_width, self.line_height),
7943 },
7944 CursorShape::Underline => Bounds {
7945 origin: self.origin
7946 + origin
7947 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7948 size: size(self.block_width, px(2.0)),
7949 },
7950 }
7951 }
7952
7953 pub fn layout(
7954 &mut self,
7955 origin: gpui::Point<Pixels>,
7956 cursor_name: Option<CursorName>,
7957 window: &mut Window,
7958 cx: &mut App,
7959 ) {
7960 if let Some(cursor_name) = cursor_name {
7961 let bounds = self.bounds(origin);
7962 let text_size = self.line_height / 1.5;
7963
7964 let name_origin = if cursor_name.is_top_row {
7965 point(bounds.right() - px(1.), bounds.top())
7966 } else {
7967 match self.shape {
7968 CursorShape::Bar => point(
7969 bounds.right() - px(2.),
7970 bounds.top() - text_size / 2. - px(1.),
7971 ),
7972 _ => point(
7973 bounds.right() - px(1.),
7974 bounds.top() - text_size / 2. - px(1.),
7975 ),
7976 }
7977 };
7978 let mut name_element = div()
7979 .bg(self.color)
7980 .text_size(text_size)
7981 .px_0p5()
7982 .line_height(text_size + px(2.))
7983 .text_color(cursor_name.color)
7984 .child(cursor_name.string.clone())
7985 .into_any_element();
7986
7987 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
7988
7989 self.cursor_name = Some(name_element);
7990 }
7991 }
7992
7993 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
7994 let bounds = self.bounds(origin);
7995
7996 //Draw background or border quad
7997 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7998 outline(bounds, self.color)
7999 } else {
8000 fill(bounds, self.color)
8001 };
8002
8003 if let Some(name) = &mut self.cursor_name {
8004 name.paint(window, cx);
8005 }
8006
8007 window.paint_quad(cursor);
8008
8009 if let Some(block_text) = &self.block_text {
8010 block_text
8011 .paint(self.origin + origin, self.line_height, window, cx)
8012 .log_err();
8013 }
8014 }
8015
8016 pub fn shape(&self) -> CursorShape {
8017 self.shape
8018 }
8019}
8020
8021#[derive(Debug)]
8022pub struct HighlightedRange {
8023 pub start_y: Pixels,
8024 pub line_height: Pixels,
8025 pub lines: Vec<HighlightedRangeLine>,
8026 pub color: Hsla,
8027 pub corner_radius: Pixels,
8028}
8029
8030#[derive(Debug)]
8031pub struct HighlightedRangeLine {
8032 pub start_x: Pixels,
8033 pub end_x: Pixels,
8034}
8035
8036impl HighlightedRange {
8037 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8038 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8039 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8040 self.paint_lines(
8041 self.start_y + self.line_height,
8042 &self.lines[1..],
8043 bounds,
8044 window,
8045 );
8046 } else {
8047 self.paint_lines(self.start_y, &self.lines, bounds, window);
8048 }
8049 }
8050
8051 fn paint_lines(
8052 &self,
8053 start_y: Pixels,
8054 lines: &[HighlightedRangeLine],
8055 _bounds: Bounds<Pixels>,
8056 window: &mut Window,
8057 ) {
8058 if lines.is_empty() {
8059 return;
8060 }
8061
8062 let first_line = lines.first().unwrap();
8063 let last_line = lines.last().unwrap();
8064
8065 let first_top_left = point(first_line.start_x, start_y);
8066 let first_top_right = point(first_line.end_x, start_y);
8067
8068 let curve_height = point(Pixels::ZERO, self.corner_radius);
8069 let curve_width = |start_x: Pixels, end_x: Pixels| {
8070 let max = (end_x - start_x) / 2.;
8071 let width = if max < self.corner_radius {
8072 max
8073 } else {
8074 self.corner_radius
8075 };
8076
8077 point(width, Pixels::ZERO)
8078 };
8079
8080 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8081 let mut builder = gpui::PathBuilder::fill();
8082 builder.move_to(first_top_right - top_curve_width);
8083 builder.curve_to(first_top_right + curve_height, first_top_right);
8084
8085 let mut iter = lines.iter().enumerate().peekable();
8086 while let Some((ix, line)) = iter.next() {
8087 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8088
8089 if let Some((_, next_line)) = iter.peek() {
8090 let next_top_right = point(next_line.end_x, bottom_right.y);
8091
8092 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8093 Ordering::Equal => {
8094 builder.line_to(bottom_right);
8095 }
8096 Ordering::Less => {
8097 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8098 builder.line_to(bottom_right - curve_height);
8099 if self.corner_radius > Pixels::ZERO {
8100 builder.curve_to(bottom_right - curve_width, bottom_right);
8101 }
8102 builder.line_to(next_top_right + curve_width);
8103 if self.corner_radius > Pixels::ZERO {
8104 builder.curve_to(next_top_right + curve_height, next_top_right);
8105 }
8106 }
8107 Ordering::Greater => {
8108 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8109 builder.line_to(bottom_right - curve_height);
8110 if self.corner_radius > Pixels::ZERO {
8111 builder.curve_to(bottom_right + curve_width, bottom_right);
8112 }
8113 builder.line_to(next_top_right - curve_width);
8114 if self.corner_radius > Pixels::ZERO {
8115 builder.curve_to(next_top_right + curve_height, next_top_right);
8116 }
8117 }
8118 }
8119 } else {
8120 let curve_width = curve_width(line.start_x, line.end_x);
8121 builder.line_to(bottom_right - curve_height);
8122 if self.corner_radius > Pixels::ZERO {
8123 builder.curve_to(bottom_right - curve_width, bottom_right);
8124 }
8125
8126 let bottom_left = point(line.start_x, bottom_right.y);
8127 builder.line_to(bottom_left + curve_width);
8128 if self.corner_radius > Pixels::ZERO {
8129 builder.curve_to(bottom_left - curve_height, bottom_left);
8130 }
8131 }
8132 }
8133
8134 if first_line.start_x > last_line.start_x {
8135 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8136 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8137 builder.line_to(second_top_left + curve_height);
8138 if self.corner_radius > Pixels::ZERO {
8139 builder.curve_to(second_top_left + curve_width, second_top_left);
8140 }
8141 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8142 builder.line_to(first_bottom_left - curve_width);
8143 if self.corner_radius > Pixels::ZERO {
8144 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8145 }
8146 }
8147
8148 builder.line_to(first_top_left + curve_height);
8149 if self.corner_radius > Pixels::ZERO {
8150 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8151 }
8152 builder.line_to(first_top_right - top_curve_width);
8153
8154 if let Ok(path) = builder.build() {
8155 window.paint_path(path, self.color);
8156 }
8157 }
8158}
8159
8160enum CursorPopoverType {
8161 CodeContextMenu,
8162 EditPrediction,
8163}
8164
8165pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8166 (delta.pow(1.5) / 100.0).into()
8167}
8168
8169fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8170 (delta.pow(1.2) / 300.0).into()
8171}
8172
8173pub fn register_action<T: Action>(
8174 editor: &Entity<Editor>,
8175 window: &mut Window,
8176 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8177) {
8178 let editor = editor.clone();
8179 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8180 let action = action.downcast_ref().unwrap();
8181 if phase == DispatchPhase::Bubble {
8182 editor.update(cx, |editor, cx| {
8183 listener(editor, action, window, cx);
8184 })
8185 }
8186 })
8187}
8188
8189fn compute_auto_height_layout(
8190 editor: &mut Editor,
8191 max_lines: usize,
8192 max_line_number_width: Pixels,
8193 known_dimensions: Size<Option<Pixels>>,
8194 available_width: AvailableSpace,
8195 window: &mut Window,
8196 cx: &mut Context<Editor>,
8197) -> Option<Size<Pixels>> {
8198 let width = known_dimensions.width.or({
8199 if let AvailableSpace::Definite(available_width) = available_width {
8200 Some(available_width)
8201 } else {
8202 None
8203 }
8204 })?;
8205 if let Some(height) = known_dimensions.height {
8206 return Some(size(width, height));
8207 }
8208
8209 let style = editor.style.as_ref().unwrap();
8210 let font_id = window.text_system().resolve_font(&style.text.font());
8211 let font_size = style.text.font_size.to_pixels(window.rem_size());
8212 let line_height = style.text.line_height_in_pixels(window.rem_size());
8213 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8214
8215 let mut snapshot = editor.snapshot(window, cx);
8216 let gutter_dimensions = snapshot
8217 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8218 .unwrap_or_default();
8219
8220 editor.gutter_dimensions = gutter_dimensions;
8221 let text_width = width - gutter_dimensions.width;
8222 let overscroll = size(em_width, px(0.));
8223
8224 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8225 if editor.set_wrap_width(Some(editor_width), cx) {
8226 snapshot = editor.snapshot(window, cx);
8227 }
8228
8229 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8230 let height = scroll_height
8231 .max(line_height)
8232 .min(line_height * max_lines as f32);
8233
8234 Some(size(width, height))
8235}
8236
8237#[cfg(test)]
8238mod tests {
8239 use super::*;
8240 use crate::{
8241 display_map::{BlockPlacement, BlockProperties},
8242 editor_tests::{init_test, update_test_language_settings},
8243 Editor, MultiBuffer,
8244 };
8245 use gpui::{TestAppContext, VisualTestContext};
8246 use language::language_settings;
8247 use log::info;
8248 use std::num::NonZeroU32;
8249 use util::test::sample_text;
8250
8251 #[gpui::test]
8252 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8253 init_test(cx, |_| {});
8254 let window = cx.add_window(|window, cx| {
8255 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8256 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8257 });
8258
8259 let editor = window.root(cx).unwrap();
8260 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8261 let line_height = window
8262 .update(cx, |_, window, _| {
8263 style.text.line_height_in_pixels(window.rem_size())
8264 })
8265 .unwrap();
8266 let element = EditorElement::new(&editor, style);
8267 let snapshot = window
8268 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8269 .unwrap();
8270
8271 let layouts = cx
8272 .update_window(*window, |_, window, cx| {
8273 element.layout_line_numbers(
8274 None,
8275 GutterDimensions {
8276 left_padding: Pixels::ZERO,
8277 right_padding: Pixels::ZERO,
8278 width: px(30.0),
8279 margin: Pixels::ZERO,
8280 git_blame_entries_width: None,
8281 },
8282 line_height,
8283 gpui::Point::default(),
8284 DisplayRow(0)..DisplayRow(6),
8285 &(0..6)
8286 .map(|row| RowInfo {
8287 buffer_row: Some(row),
8288 ..Default::default()
8289 })
8290 .collect::<Vec<_>>(),
8291 Some(DisplayPoint::new(DisplayRow(0), 0)),
8292 &snapshot,
8293 window,
8294 cx,
8295 )
8296 })
8297 .unwrap();
8298 assert_eq!(layouts.len(), 6);
8299
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(0)..DisplayRow(6)),
8306 Some(DisplayRow(3)),
8307 )
8308 })
8309 .unwrap();
8310 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8311 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8312 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8313 // current line has no relative number
8314 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8315 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8316
8317 // works if cursor is before screen
8318 let relative_rows = window
8319 .update(cx, |editor, window, cx| {
8320 let snapshot = editor.snapshot(window, cx);
8321 element.calculate_relative_line_numbers(
8322 &snapshot,
8323 &(DisplayRow(3)..DisplayRow(6)),
8324 Some(DisplayRow(1)),
8325 )
8326 })
8327 .unwrap();
8328 assert_eq!(relative_rows.len(), 3);
8329 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8330 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8331 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8332
8333 // works if cursor is after screen
8334 let relative_rows = window
8335 .update(cx, |editor, window, cx| {
8336 let snapshot = editor.snapshot(window, cx);
8337 element.calculate_relative_line_numbers(
8338 &snapshot,
8339 &(DisplayRow(0)..DisplayRow(3)),
8340 Some(DisplayRow(6)),
8341 )
8342 })
8343 .unwrap();
8344 assert_eq!(relative_rows.len(), 3);
8345 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8346 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8347 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8348 }
8349
8350 #[gpui::test]
8351 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8352 init_test(cx, |_| {});
8353
8354 let window = cx.add_window(|window, cx| {
8355 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8356 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8357 });
8358 let cx = &mut VisualTestContext::from_window(*window, cx);
8359 let editor = window.root(cx).unwrap();
8360 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8361
8362 window
8363 .update(cx, |editor, window, cx| {
8364 editor.cursor_shape = CursorShape::Block;
8365 editor.change_selections(None, window, cx, |s| {
8366 s.select_ranges([
8367 Point::new(0, 0)..Point::new(1, 0),
8368 Point::new(3, 2)..Point::new(3, 3),
8369 Point::new(5, 6)..Point::new(6, 0),
8370 ]);
8371 });
8372 })
8373 .unwrap();
8374
8375 let (_, state) = cx.draw(
8376 point(px(500.), px(500.)),
8377 size(px(500.), px(500.)),
8378 |_, _| EditorElement::new(&editor, style),
8379 );
8380
8381 assert_eq!(state.selections.len(), 1);
8382 let local_selections = &state.selections[0].1;
8383 assert_eq!(local_selections.len(), 3);
8384 // moves cursor back one line
8385 assert_eq!(
8386 local_selections[0].head,
8387 DisplayPoint::new(DisplayRow(0), 6)
8388 );
8389 assert_eq!(
8390 local_selections[0].range,
8391 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8392 );
8393
8394 // moves cursor back one column
8395 assert_eq!(
8396 local_selections[1].range,
8397 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8398 );
8399 assert_eq!(
8400 local_selections[1].head,
8401 DisplayPoint::new(DisplayRow(3), 2)
8402 );
8403
8404 // leaves cursor on the max point
8405 assert_eq!(
8406 local_selections[2].range,
8407 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8408 );
8409 assert_eq!(
8410 local_selections[2].head,
8411 DisplayPoint::new(DisplayRow(6), 0)
8412 );
8413
8414 // active lines does not include 1 (even though the range of the selection does)
8415 assert_eq!(
8416 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8417 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8418 );
8419
8420 // multi-buffer support
8421 // in DisplayPoint coordinates, this is what we're dealing with:
8422 // 0: [[file
8423 // 1: header
8424 // 2: section]]
8425 // 3: aaaaaa
8426 // 4: bbbbbb
8427 // 5: cccccc
8428 // 6:
8429 // 7: [[footer]]
8430 // 8: [[header]]
8431 // 9: ffffff
8432 // 10: gggggg
8433 // 11: hhhhhh
8434 // 12:
8435 // 13: [[footer]]
8436 // 14: [[file
8437 // 15: header
8438 // 16: section]]
8439 // 17: bbbbbb
8440 // 18: cccccc
8441 // 19: dddddd
8442 // 20: [[footer]]
8443 let window = cx.add_window(|window, cx| {
8444 let buffer = MultiBuffer::build_multi(
8445 [
8446 (
8447 &(sample_text(8, 6, 'a') + "\n"),
8448 vec![
8449 Point::new(0, 0)..Point::new(3, 0),
8450 Point::new(4, 0)..Point::new(7, 0),
8451 ],
8452 ),
8453 (
8454 &(sample_text(8, 6, 'a') + "\n"),
8455 vec![Point::new(1, 0)..Point::new(3, 0)],
8456 ),
8457 ],
8458 cx,
8459 );
8460 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8461 });
8462 let editor = window.root(cx).unwrap();
8463 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8464 let _state = window.update(cx, |editor, window, cx| {
8465 editor.cursor_shape = CursorShape::Block;
8466 editor.change_selections(None, window, cx, |s| {
8467 s.select_display_ranges([
8468 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8469 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8470 ]);
8471 });
8472 });
8473
8474 let (_, state) = cx.draw(
8475 point(px(500.), px(500.)),
8476 size(px(500.), px(500.)),
8477 |_, _| EditorElement::new(&editor, style),
8478 );
8479 assert_eq!(state.selections.len(), 1);
8480 let local_selections = &state.selections[0].1;
8481 assert_eq!(local_selections.len(), 2);
8482
8483 // moves cursor on excerpt boundary back a line
8484 // and doesn't allow selection to bleed through
8485 assert_eq!(
8486 local_selections[0].range,
8487 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8488 );
8489 assert_eq!(
8490 local_selections[0].head,
8491 DisplayPoint::new(DisplayRow(6), 0)
8492 );
8493 // moves cursor on buffer boundary back two lines
8494 // and doesn't allow selection to bleed through
8495 assert_eq!(
8496 local_selections[1].range,
8497 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8498 );
8499 assert_eq!(
8500 local_selections[1].head,
8501 DisplayPoint::new(DisplayRow(12), 0)
8502 );
8503 }
8504
8505 #[gpui::test]
8506 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8507 init_test(cx, |_| {});
8508
8509 let window = cx.add_window(|window, cx| {
8510 let buffer = MultiBuffer::build_simple("", cx);
8511 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8512 });
8513 let cx = &mut VisualTestContext::from_window(*window, cx);
8514 let editor = window.root(cx).unwrap();
8515 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8516 window
8517 .update(cx, |editor, window, cx| {
8518 editor.set_placeholder_text("hello", cx);
8519 editor.insert_blocks(
8520 [BlockProperties {
8521 style: BlockStyle::Fixed,
8522 placement: BlockPlacement::Above(Anchor::min()),
8523 height: 3,
8524 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8525 priority: 0,
8526 }],
8527 None,
8528 cx,
8529 );
8530
8531 // Blur the editor so that it displays placeholder text.
8532 window.blur();
8533 })
8534 .unwrap();
8535
8536 let (_, state) = cx.draw(
8537 point(px(500.), px(500.)),
8538 size(px(500.), px(500.)),
8539 |_, _| EditorElement::new(&editor, style),
8540 );
8541 assert_eq!(state.position_map.line_layouts.len(), 4);
8542 assert_eq!(state.line_numbers.len(), 1);
8543 assert_eq!(
8544 state
8545 .line_numbers
8546 .get(&MultiBufferRow(0))
8547 .map(|line_number| line_number.shaped_line.text.as_ref()),
8548 Some("1")
8549 );
8550 }
8551
8552 #[gpui::test]
8553 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8554 const TAB_SIZE: u32 = 4;
8555
8556 let input_text = "\t \t|\t| a b";
8557 let expected_invisibles = vec![
8558 Invisible::Tab {
8559 line_start_offset: 0,
8560 line_end_offset: TAB_SIZE as usize,
8561 },
8562 Invisible::Whitespace {
8563 line_offset: TAB_SIZE as usize,
8564 },
8565 Invisible::Tab {
8566 line_start_offset: TAB_SIZE as usize + 1,
8567 line_end_offset: TAB_SIZE as usize * 2,
8568 },
8569 Invisible::Tab {
8570 line_start_offset: TAB_SIZE as usize * 2 + 1,
8571 line_end_offset: TAB_SIZE as usize * 3,
8572 },
8573 Invisible::Whitespace {
8574 line_offset: TAB_SIZE as usize * 3 + 1,
8575 },
8576 Invisible::Whitespace {
8577 line_offset: TAB_SIZE as usize * 3 + 3,
8578 },
8579 ];
8580 assert_eq!(
8581 expected_invisibles.len(),
8582 input_text
8583 .chars()
8584 .filter(|initial_char| initial_char.is_whitespace())
8585 .count(),
8586 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8587 );
8588
8589 for show_line_numbers in [true, false] {
8590 init_test(cx, |s| {
8591 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8592 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8593 });
8594
8595 let actual_invisibles = collect_invisibles_from_new_editor(
8596 cx,
8597 EditorMode::Full,
8598 input_text,
8599 px(500.0),
8600 show_line_numbers,
8601 );
8602
8603 assert_eq!(expected_invisibles, actual_invisibles);
8604 }
8605 }
8606
8607 #[gpui::test]
8608 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8609 init_test(cx, |s| {
8610 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8611 s.defaults.tab_size = NonZeroU32::new(4);
8612 });
8613
8614 for editor_mode_without_invisibles in [
8615 EditorMode::SingleLine { auto_width: false },
8616 EditorMode::AutoHeight { max_lines: 100 },
8617 ] {
8618 for show_line_numbers in [true, false] {
8619 let invisibles = collect_invisibles_from_new_editor(
8620 cx,
8621 editor_mode_without_invisibles,
8622 "\t\t\t| | a b",
8623 px(500.0),
8624 show_line_numbers,
8625 );
8626 assert!(invisibles.is_empty(),
8627 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8628 }
8629 }
8630 }
8631
8632 #[gpui::test]
8633 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8634 let tab_size = 4;
8635 let input_text = "a\tbcd ".repeat(9);
8636 let repeated_invisibles = [
8637 Invisible::Tab {
8638 line_start_offset: 1,
8639 line_end_offset: tab_size as usize,
8640 },
8641 Invisible::Whitespace {
8642 line_offset: tab_size as usize + 3,
8643 },
8644 Invisible::Whitespace {
8645 line_offset: tab_size as usize + 4,
8646 },
8647 Invisible::Whitespace {
8648 line_offset: tab_size as usize + 5,
8649 },
8650 Invisible::Whitespace {
8651 line_offset: tab_size as usize + 6,
8652 },
8653 Invisible::Whitespace {
8654 line_offset: tab_size as usize + 7,
8655 },
8656 ];
8657 let expected_invisibles = std::iter::once(repeated_invisibles)
8658 .cycle()
8659 .take(9)
8660 .flatten()
8661 .collect::<Vec<_>>();
8662 assert_eq!(
8663 expected_invisibles.len(),
8664 input_text
8665 .chars()
8666 .filter(|initial_char| initial_char.is_whitespace())
8667 .count(),
8668 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8669 );
8670 info!("Expected invisibles: {expected_invisibles:?}");
8671
8672 init_test(cx, |_| {});
8673
8674 // Put the same string with repeating whitespace pattern into editors of various size,
8675 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8676 let resize_step = 10.0;
8677 let mut editor_width = 200.0;
8678 while editor_width <= 1000.0 {
8679 for show_line_numbers in [true, false] {
8680 update_test_language_settings(cx, |s| {
8681 s.defaults.tab_size = NonZeroU32::new(tab_size);
8682 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8683 s.defaults.preferred_line_length = Some(editor_width as u32);
8684 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8685 });
8686
8687 let actual_invisibles = collect_invisibles_from_new_editor(
8688 cx,
8689 EditorMode::Full,
8690 &input_text,
8691 px(editor_width),
8692 show_line_numbers,
8693 );
8694
8695 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8696 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8697 let mut i = 0;
8698 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8699 i = actual_index;
8700 match expected_invisibles.get(i) {
8701 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8702 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8703 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8704 _ => {
8705 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8706 }
8707 },
8708 None => {
8709 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8710 }
8711 }
8712 }
8713 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8714 assert!(
8715 missing_expected_invisibles.is_empty(),
8716 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8717 );
8718
8719 editor_width += resize_step;
8720 }
8721 }
8722 }
8723
8724 fn collect_invisibles_from_new_editor(
8725 cx: &mut TestAppContext,
8726 editor_mode: EditorMode,
8727 input_text: &str,
8728 editor_width: Pixels,
8729 show_line_numbers: bool,
8730 ) -> Vec<Invisible> {
8731 info!(
8732 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8733 editor_width.0
8734 );
8735 let window = cx.add_window(|window, cx| {
8736 let buffer = MultiBuffer::build_simple(input_text, cx);
8737 Editor::new(editor_mode, buffer, None, true, window, cx)
8738 });
8739 let cx = &mut VisualTestContext::from_window(*window, cx);
8740 let editor = window.root(cx).unwrap();
8741
8742 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8743 window
8744 .update(cx, |editor, _, cx| {
8745 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8746 editor.set_wrap_width(Some(editor_width), cx);
8747 editor.set_show_line_numbers(show_line_numbers, cx);
8748 })
8749 .unwrap();
8750 let (_, state) = cx.draw(
8751 point(px(500.), px(500.)),
8752 size(px(500.), px(500.)),
8753 |_, _| EditorElement::new(&editor, style),
8754 );
8755 state
8756 .position_map
8757 .line_layouts
8758 .iter()
8759 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8760 .cloned()
8761 .collect()
8762 }
8763}
8764
8765fn diff_hunk_controls(
8766 row: u32,
8767 status: &DiffHunkStatus,
8768 hunk_range: Range<Anchor>,
8769 line_height: Pixels,
8770 editor: &Entity<Editor>,
8771 cx: &mut App,
8772) -> AnyElement {
8773 h_flex()
8774 .h(line_height)
8775 .mr_1()
8776 .gap_1()
8777 .px_1()
8778 .pb_1()
8779 .border_b_1()
8780 .border_color(cx.theme().colors().border_variant)
8781 .rounded_b_lg()
8782 .bg(cx.theme().colors().editor_background)
8783 .gap_1()
8784 .child(if status.has_secondary_hunk() {
8785 Button::new(("stage", row as u64), "Stage")
8786 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8787 .tooltip({
8788 let focus_handle = editor.focus_handle(cx);
8789 move |window, cx| {
8790 Tooltip::for_action_in(
8791 "Stage Hunk",
8792 &::git::ToggleStaged,
8793 &focus_handle,
8794 window,
8795 cx,
8796 )
8797 }
8798 })
8799 .on_click({
8800 let editor = editor.clone();
8801 move |_event, window, cx| {
8802 editor.update(cx, |editor, cx| {
8803 editor.stage_or_unstage_diff_hunks(
8804 true,
8805 &[hunk_range.start..hunk_range.start],
8806 window,
8807 cx,
8808 );
8809 });
8810 }
8811 })
8812 } else {
8813 Button::new(("unstage", row as u64), "Unstage")
8814 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8815 .tooltip({
8816 let focus_handle = editor.focus_handle(cx);
8817 move |window, cx| {
8818 Tooltip::for_action_in(
8819 "Unstage Hunk",
8820 &::git::ToggleStaged,
8821 &focus_handle,
8822 window,
8823 cx,
8824 )
8825 }
8826 })
8827 .on_click({
8828 let editor = editor.clone();
8829 move |_event, window, cx| {
8830 editor.update(cx, |editor, cx| {
8831 editor.stage_or_unstage_diff_hunks(
8832 false,
8833 &[hunk_range.start..hunk_range.start],
8834 window,
8835 cx,
8836 );
8837 });
8838 }
8839 })
8840 })
8841 .child(
8842 Button::new("discard", "Restore")
8843 .tooltip({
8844 let focus_handle = editor.focus_handle(cx);
8845 move |window, cx| {
8846 Tooltip::for_action_in(
8847 "Restore Hunk",
8848 &::git::Restore,
8849 &focus_handle,
8850 window,
8851 cx,
8852 )
8853 }
8854 })
8855 .on_click({
8856 let editor = editor.clone();
8857 move |_event, window, cx| {
8858 editor.update(cx, |editor, cx| {
8859 let snapshot = editor.snapshot(window, cx);
8860 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8861 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8862 });
8863 }
8864 }),
8865 )
8866 .when(
8867 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8868 |el| {
8869 el.child(
8870 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8871 .shape(IconButtonShape::Square)
8872 .icon_size(IconSize::Small)
8873 // .disabled(!has_multiple_hunks)
8874 .tooltip({
8875 let focus_handle = editor.focus_handle(cx);
8876 move |window, cx| {
8877 Tooltip::for_action_in(
8878 "Next Hunk",
8879 &GoToHunk::default(),
8880 &focus_handle,
8881 window,
8882 cx,
8883 )
8884 }
8885 })
8886 .on_click({
8887 let editor = editor.clone();
8888 move |_event, window, cx| {
8889 editor.update(cx, |editor, cx| {
8890 let snapshot = editor.snapshot(window, cx);
8891 let position =
8892 hunk_range.end.to_point(&snapshot.buffer_snapshot);
8893 editor.go_to_hunk_after_or_before_position(
8894 &snapshot, position, true, true, window, cx,
8895 );
8896 editor.expand_selected_diff_hunks(cx);
8897 });
8898 }
8899 }),
8900 )
8901 .child(
8902 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8903 .shape(IconButtonShape::Square)
8904 .icon_size(IconSize::Small)
8905 // .disabled(!has_multiple_hunks)
8906 .tooltip({
8907 let focus_handle = editor.focus_handle(cx);
8908 move |window, cx| {
8909 Tooltip::for_action_in(
8910 "Previous Hunk",
8911 &GoToPreviousHunk::default(),
8912 &focus_handle,
8913 window,
8914 cx,
8915 )
8916 }
8917 })
8918 .on_click({
8919 let editor = editor.clone();
8920 move |_event, window, cx| {
8921 editor.update(cx, |editor, cx| {
8922 let snapshot = editor.snapshot(window, cx);
8923 let point =
8924 hunk_range.start.to_point(&snapshot.buffer_snapshot);
8925 editor.go_to_hunk_after_or_before_position(
8926 &snapshot, point, false, true, window, cx,
8927 );
8928 editor.expand_selected_diff_hunks(cx);
8929 });
8930 }
8931 }),
8932 )
8933 },
8934 )
8935 .into_any_element()
8936}