1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 inlay_hint_settings,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
18 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
19 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayDiffHunk, DisplayPoint,
20 DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
21 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
22 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
23 InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown,
24 PageUp, Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap,
25 StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR,
26 FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
27 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
28};
29use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
30use client::ParticipantIndex;
31use collections::{BTreeMap, HashMap, HashSet};
32use file_icons::FileIcons;
33use git::{blame::BlameEntry, status::FileStatus, Oid};
34use gpui::{
35 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
36 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
37 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
38 Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
39 Hsla, InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
40 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
41 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
42 Subscription, TextRun, TextStyleRefinement, Window,
43};
44use itertools::Itertools;
45use language::{
46 language_settings::{
47 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
48 ShowWhitespaceSetting,
49 },
50 ChunkRendererContext,
51};
52use lsp::DiagnosticSeverity;
53use multi_buffer::{
54 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
55 RowInfo,
56};
57use project::project_settings::{self, GitGutterSetting, ProjectSettings};
58use settings::Settings;
59use smallvec::{smallvec, SmallVec};
60use std::{
61 any::TypeId,
62 borrow::Cow,
63 cmp::{self, Ordering},
64 fmt::{self, Write},
65 iter, mem,
66 ops::{Deref, Range},
67 rc::Rc,
68 sync::Arc,
69};
70use sum_tree::Bias;
71use text::BufferId;
72use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
73use ui::{
74 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
75 POPOVER_Y_PADDING,
76};
77use unicode_segmentation::UnicodeSegmentation;
78use util::{debug_panic, maybe, RangeExt, ResultExt};
79use workspace::{item::Item, notifications::NotifyTaskExt};
80
81const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
82const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
83
84struct SelectionLayout {
85 head: DisplayPoint,
86 cursor_shape: CursorShape,
87 is_newest: bool,
88 is_local: bool,
89 range: Range<DisplayPoint>,
90 active_rows: Range<DisplayRow>,
91 user_name: Option<SharedString>,
92}
93
94impl SelectionLayout {
95 fn new<T: ToPoint + ToDisplayPoint + Clone>(
96 selection: Selection<T>,
97 line_mode: bool,
98 cursor_shape: CursorShape,
99 map: &DisplaySnapshot,
100 is_newest: bool,
101 is_local: bool,
102 user_name: Option<SharedString>,
103 ) -> Self {
104 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
105 let display_selection = point_selection.map(|p| p.to_display_point(map));
106 let mut range = display_selection.range();
107 let mut head = display_selection.head();
108 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
109 ..map.next_line_boundary(point_selection.end).1.row();
110
111 // vim visual line mode
112 if line_mode {
113 let point_range = map.expand_to_line(point_selection.range());
114 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
115 }
116
117 // any vim visual mode (including line mode)
118 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
119 && !range.is_empty()
120 && !selection.reversed
121 {
122 if head.column() > 0 {
123 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
124 } else if head.row().0 > 0 && head != map.max_point() {
125 head = map.clip_point(
126 DisplayPoint::new(
127 head.row().previous_row(),
128 map.line_len(head.row().previous_row()),
129 ),
130 Bias::Left,
131 );
132 // updating range.end is a no-op unless you're cursor is
133 // on the newline containing a multi-buffer divider
134 // in which case the clip_point may have moved the head up
135 // an additional row.
136 range.end = DisplayPoint::new(head.row().next_row(), 0);
137 active_rows.end = head.row();
138 }
139 }
140
141 Self {
142 head,
143 cursor_shape,
144 is_newest,
145 is_local,
146 range,
147 active_rows,
148 user_name,
149 }
150 }
151}
152
153pub struct EditorElement {
154 editor: Entity<Editor>,
155 style: EditorStyle,
156}
157
158type DisplayRowDelta = u32;
159
160impl EditorElement {
161 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
162
163 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
164 Self {
165 editor: editor.clone(),
166 style,
167 }
168 }
169
170 fn register_actions(&self, window: &mut Window, cx: &mut App) {
171 let editor = &self.editor;
172 editor.update(cx, |editor, cx| {
173 for action in editor.editor_actions.borrow().values() {
174 (action)(window, cx)
175 }
176 });
177
178 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
179 crate::clangd_ext::apply_related_actions(editor, window, cx);
180 register_action(editor, window, Editor::open_context_menu);
181 register_action(editor, window, Editor::move_left);
182 register_action(editor, window, Editor::move_right);
183 register_action(editor, window, Editor::move_down);
184 register_action(editor, window, Editor::move_down_by_lines);
185 register_action(editor, window, Editor::select_down_by_lines);
186 register_action(editor, window, Editor::move_up);
187 register_action(editor, window, Editor::move_up_by_lines);
188 register_action(editor, window, Editor::select_up_by_lines);
189 register_action(editor, window, Editor::select_page_down);
190 register_action(editor, window, Editor::select_page_up);
191 register_action(editor, window, Editor::cancel);
192 register_action(editor, window, Editor::newline);
193 register_action(editor, window, Editor::newline_above);
194 register_action(editor, window, Editor::newline_below);
195 register_action(editor, window, Editor::backspace);
196 register_action(editor, window, Editor::delete);
197 register_action(editor, window, Editor::tab);
198 register_action(editor, window, Editor::tab_prev);
199 register_action(editor, window, Editor::indent);
200 register_action(editor, window, Editor::outdent);
201 register_action(editor, window, Editor::autoindent);
202 register_action(editor, window, Editor::delete_line);
203 register_action(editor, window, Editor::join_lines);
204 register_action(editor, window, Editor::sort_lines_case_sensitive);
205 register_action(editor, window, Editor::sort_lines_case_insensitive);
206 register_action(editor, window, Editor::reverse_lines);
207 register_action(editor, window, Editor::shuffle_lines);
208 register_action(editor, window, Editor::convert_to_upper_case);
209 register_action(editor, window, Editor::convert_to_lower_case);
210 register_action(editor, window, Editor::convert_to_title_case);
211 register_action(editor, window, Editor::convert_to_snake_case);
212 register_action(editor, window, Editor::convert_to_kebab_case);
213 register_action(editor, window, Editor::convert_to_upper_camel_case);
214 register_action(editor, window, Editor::convert_to_lower_camel_case);
215 register_action(editor, window, Editor::convert_to_opposite_case);
216 register_action(editor, window, Editor::delete_to_previous_word_start);
217 register_action(editor, window, Editor::delete_to_previous_subword_start);
218 register_action(editor, window, Editor::delete_to_next_word_end);
219 register_action(editor, window, Editor::delete_to_next_subword_end);
220 register_action(editor, window, Editor::delete_to_beginning_of_line);
221 register_action(editor, window, Editor::delete_to_end_of_line);
222 register_action(editor, window, Editor::cut_to_end_of_line);
223 register_action(editor, window, Editor::duplicate_line_up);
224 register_action(editor, window, Editor::duplicate_line_down);
225 register_action(editor, window, Editor::duplicate_selection);
226 register_action(editor, window, Editor::move_line_up);
227 register_action(editor, window, Editor::move_line_down);
228 register_action(editor, window, Editor::transpose);
229 register_action(editor, window, Editor::rewrap);
230 register_action(editor, window, Editor::cut);
231 register_action(editor, window, Editor::kill_ring_cut);
232 register_action(editor, window, Editor::kill_ring_yank);
233 register_action(editor, window, Editor::copy);
234 register_action(editor, window, Editor::paste);
235 register_action(editor, window, Editor::undo);
236 register_action(editor, window, Editor::redo);
237 register_action(editor, window, Editor::move_page_up);
238 register_action(editor, window, Editor::move_page_down);
239 register_action(editor, window, Editor::next_screen);
240 register_action(editor, window, Editor::scroll_cursor_top);
241 register_action(editor, window, Editor::scroll_cursor_center);
242 register_action(editor, window, Editor::scroll_cursor_bottom);
243 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
244 register_action(editor, window, |editor, _: &LineDown, window, cx| {
245 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
246 });
247 register_action(editor, window, |editor, _: &LineUp, window, cx| {
248 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
249 });
250 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
251 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
252 });
253 register_action(
254 editor,
255 window,
256 |editor, HandleInput(text): &HandleInput, window, cx| {
257 if text.is_empty() {
258 return;
259 }
260 editor.handle_input(text, window, cx);
261 },
262 );
263 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
264 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
265 });
266 register_action(editor, window, |editor, _: &PageDown, window, cx| {
267 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
268 });
269 register_action(editor, window, |editor, _: &PageUp, window, cx| {
270 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
271 });
272 register_action(editor, window, Editor::move_to_previous_word_start);
273 register_action(editor, window, Editor::move_to_previous_subword_start);
274 register_action(editor, window, Editor::move_to_next_word_end);
275 register_action(editor, window, Editor::move_to_next_subword_end);
276 register_action(editor, window, Editor::move_to_beginning_of_line);
277 register_action(editor, window, Editor::move_to_end_of_line);
278 register_action(editor, window, Editor::move_to_start_of_paragraph);
279 register_action(editor, window, Editor::move_to_end_of_paragraph);
280 register_action(editor, window, Editor::move_to_beginning);
281 register_action(editor, window, Editor::move_to_end);
282 register_action(editor, window, Editor::move_to_start_of_excerpt);
283 register_action(editor, window, Editor::move_to_end_of_excerpt);
284 register_action(editor, window, Editor::select_up);
285 register_action(editor, window, Editor::select_down);
286 register_action(editor, window, Editor::select_left);
287 register_action(editor, window, Editor::select_right);
288 register_action(editor, window, Editor::select_to_previous_word_start);
289 register_action(editor, window, Editor::select_to_previous_subword_start);
290 register_action(editor, window, Editor::select_to_next_word_end);
291 register_action(editor, window, Editor::select_to_next_subword_end);
292 register_action(editor, window, Editor::select_to_beginning_of_line);
293 register_action(editor, window, Editor::select_to_end_of_line);
294 register_action(editor, window, Editor::select_to_start_of_paragraph);
295 register_action(editor, window, Editor::select_to_end_of_paragraph);
296 register_action(editor, window, Editor::select_to_start_of_excerpt);
297 register_action(editor, window, Editor::select_to_end_of_excerpt);
298 register_action(editor, window, Editor::select_to_beginning);
299 register_action(editor, window, Editor::select_to_end);
300 register_action(editor, window, Editor::select_all);
301 register_action(editor, window, |editor, action, window, cx| {
302 editor.select_all_matches(action, window, cx).log_err();
303 });
304 register_action(editor, window, Editor::select_line);
305 register_action(editor, window, Editor::split_selection_into_lines);
306 register_action(editor, window, Editor::add_selection_above);
307 register_action(editor, window, Editor::add_selection_below);
308 register_action(editor, window, |editor, action, window, cx| {
309 editor.select_next(action, window, cx).log_err();
310 });
311 register_action(editor, window, |editor, action, window, cx| {
312 editor.select_previous(action, window, cx).log_err();
313 });
314 register_action(editor, window, Editor::toggle_comments);
315 register_action(editor, window, Editor::select_larger_syntax_node);
316 register_action(editor, window, Editor::select_smaller_syntax_node);
317 register_action(editor, window, Editor::select_enclosing_symbol);
318 register_action(editor, window, Editor::move_to_enclosing_bracket);
319 register_action(editor, window, Editor::undo_selection);
320 register_action(editor, window, Editor::redo_selection);
321 if !editor.read(cx).is_singleton(cx) {
322 register_action(editor, window, Editor::expand_excerpts);
323 register_action(editor, window, Editor::expand_excerpts_up);
324 register_action(editor, window, Editor::expand_excerpts_down);
325 }
326 register_action(editor, window, Editor::go_to_diagnostic);
327 register_action(editor, window, Editor::go_to_prev_diagnostic);
328 register_action(editor, window, Editor::go_to_next_hunk);
329 register_action(editor, window, Editor::go_to_prev_hunk);
330 register_action(editor, window, |editor, action, window, cx| {
331 editor
332 .go_to_definition(action, window, cx)
333 .detach_and_log_err(cx);
334 });
335 register_action(editor, window, |editor, action, window, cx| {
336 editor
337 .go_to_definition_split(action, window, cx)
338 .detach_and_log_err(cx);
339 });
340 register_action(editor, window, |editor, action, window, cx| {
341 editor
342 .go_to_declaration(action, window, cx)
343 .detach_and_log_err(cx);
344 });
345 register_action(editor, window, |editor, action, window, cx| {
346 editor
347 .go_to_declaration_split(action, window, cx)
348 .detach_and_log_err(cx);
349 });
350 register_action(editor, window, |editor, action, window, cx| {
351 editor
352 .go_to_implementation(action, window, cx)
353 .detach_and_log_err(cx);
354 });
355 register_action(editor, window, |editor, action, window, cx| {
356 editor
357 .go_to_implementation_split(action, window, cx)
358 .detach_and_log_err(cx);
359 });
360 register_action(editor, window, |editor, action, window, cx| {
361 editor
362 .go_to_type_definition(action, window, cx)
363 .detach_and_log_err(cx);
364 });
365 register_action(editor, window, |editor, action, window, cx| {
366 editor
367 .go_to_type_definition_split(action, window, cx)
368 .detach_and_log_err(cx);
369 });
370 register_action(editor, window, Editor::open_url);
371 register_action(editor, window, Editor::open_selected_filename);
372 register_action(editor, window, Editor::fold);
373 register_action(editor, window, Editor::fold_at_level);
374 register_action(editor, window, Editor::fold_all);
375 register_action(editor, window, Editor::fold_function_bodies);
376 register_action(editor, window, Editor::fold_at);
377 register_action(editor, window, Editor::fold_recursive);
378 register_action(editor, window, Editor::toggle_fold);
379 register_action(editor, window, Editor::toggle_fold_recursive);
380 register_action(editor, window, Editor::unfold_lines);
381 register_action(editor, window, Editor::unfold_recursive);
382 register_action(editor, window, Editor::unfold_all);
383 register_action(editor, window, Editor::unfold_at);
384 register_action(editor, window, Editor::fold_selected_ranges);
385 register_action(editor, window, Editor::set_mark);
386 register_action(editor, window, Editor::swap_selection_ends);
387 register_action(editor, window, Editor::show_completions);
388 register_action(editor, window, Editor::toggle_code_actions);
389 register_action(editor, window, Editor::open_excerpts);
390 register_action(editor, window, Editor::open_excerpts_in_split);
391 register_action(editor, window, Editor::open_proposed_changes_editor);
392 register_action(editor, window, Editor::toggle_soft_wrap);
393 register_action(editor, window, Editor::toggle_tab_bar);
394 register_action(editor, window, Editor::toggle_line_numbers);
395 register_action(editor, window, Editor::toggle_relative_line_numbers);
396 register_action(editor, window, Editor::toggle_indent_guides);
397 register_action(editor, window, Editor::toggle_inlay_hints);
398 register_action(editor, window, Editor::toggle_edit_predictions);
399 register_action(editor, window, Editor::toggle_inline_diagnostics);
400 register_action(editor, window, hover_popover::hover);
401 register_action(editor, window, Editor::reveal_in_finder);
402 register_action(editor, window, Editor::copy_path);
403 register_action(editor, window, Editor::copy_relative_path);
404 register_action(editor, window, Editor::copy_file_name);
405 register_action(editor, window, Editor::copy_file_name_without_extension);
406 register_action(editor, window, Editor::copy_highlight_json);
407 register_action(editor, window, Editor::copy_permalink_to_line);
408 register_action(editor, window, Editor::open_permalink_to_line);
409 register_action(editor, window, Editor::copy_file_location);
410 register_action(editor, window, Editor::toggle_git_blame);
411 register_action(editor, window, Editor::toggle_git_blame_inline);
412 register_action(editor, window, Editor::toggle_selected_diff_hunks);
413 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
414 register_action(editor, window, Editor::stage_and_next);
415 register_action(editor, window, Editor::unstage_and_next);
416 register_action(editor, window, Editor::expand_all_diff_hunks);
417
418 register_action(editor, window, |editor, action, window, cx| {
419 if let Some(task) = editor.format(action, window, cx) {
420 task.detach_and_notify_err(window, cx);
421 } else {
422 cx.propagate();
423 }
424 });
425 register_action(editor, window, |editor, action, window, cx| {
426 if let Some(task) = editor.format_selections(action, window, cx) {
427 task.detach_and_notify_err(window, cx);
428 } else {
429 cx.propagate();
430 }
431 });
432 register_action(editor, window, |editor, 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 && is_folded {
2726 colors.border_focused
2727 } else {
2728 colors.border
2729 };
2730 div.border_color(border_color)
2731 })
2732 .bg(colors.editor_subheader_background)
2733 .hover(|style| style.bg(colors.element_hover))
2734 .map(|header| {
2735 let editor = self.editor.clone();
2736 let buffer_id = for_excerpt.buffer_id;
2737 let toggle_chevron_icon =
2738 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2739 header.child(
2740 div()
2741 .hover(|style| style.bg(colors.element_selected))
2742 .rounded_sm()
2743 .child(
2744 ButtonLike::new("toggle-buffer-fold")
2745 .style(ui::ButtonStyle::Transparent)
2746 .size(ButtonSize::Large)
2747 .width(px(30.).into())
2748 .children(toggle_chevron_icon)
2749 .tooltip({
2750 let focus_handle = focus_handle.clone();
2751 move |window, cx| {
2752 Tooltip::for_action_in(
2753 "Toggle Excerpt Fold",
2754 &ToggleFold,
2755 &focus_handle,
2756 window,
2757 cx,
2758 )
2759 }
2760 })
2761 .on_click(move |_, _, cx| {
2762 if is_folded {
2763 editor.update(cx, |editor, cx| {
2764 editor.unfold_buffer(buffer_id, cx);
2765 });
2766 } else {
2767 editor.update(cx, |editor, cx| {
2768 editor.fold_buffer(buffer_id, cx);
2769 });
2770 }
2771 }),
2772 ),
2773 )
2774 })
2775 .children(
2776 self.editor
2777 .read(cx)
2778 .addons
2779 .values()
2780 .filter_map(|addon| {
2781 addon.render_buffer_header_controls(for_excerpt, window, cx)
2782 })
2783 .take(1),
2784 )
2785 .child(
2786 h_flex()
2787 .cursor_pointer()
2788 .id("path header block")
2789 .size_full()
2790 .justify_between()
2791 .child(
2792 h_flex()
2793 .gap_2()
2794 .child(
2795 Label::new(
2796 filename
2797 .map(SharedString::from)
2798 .unwrap_or_else(|| "untitled".into()),
2799 )
2800 .single_line()
2801 .when_some(
2802 file_status,
2803 |el, status| {
2804 el.color(if status.is_conflicted() {
2805 Color::Conflict
2806 } else if status.is_modified() {
2807 Color::Modified
2808 } else if status.is_deleted() {
2809 Color::Disabled
2810 } else {
2811 Color::Created
2812 })
2813 .when(status.is_deleted(), |el| el.strikethrough())
2814 },
2815 ),
2816 )
2817 .when_some(parent_path, |then, path| {
2818 then.child(div().child(path).text_color(
2819 if file_status.is_some_and(FileStatus::is_deleted) {
2820 colors.text_disabled
2821 } else {
2822 colors.text_muted
2823 },
2824 ))
2825 }),
2826 )
2827 .when(is_selected, |el| {
2828 el.child(
2829 h_flex()
2830 .id("jump-to-file-button")
2831 .gap_2p5()
2832 .child(Label::new("Jump To File"))
2833 .children(
2834 KeyBinding::for_action_in(
2835 &OpenExcerpts,
2836 &focus_handle,
2837 window,
2838 cx,
2839 )
2840 .map(|binding| binding.into_any_element()),
2841 ),
2842 )
2843 })
2844 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2845 .on_click(window.listener_for(&self.editor, {
2846 move |editor, e: &ClickEvent, window, cx| {
2847 editor.open_excerpts_common(
2848 Some(jump_data.clone()),
2849 e.down.modifiers.secondary(),
2850 window,
2851 cx,
2852 );
2853 }
2854 })),
2855 ),
2856 )
2857 }
2858
2859 fn render_expand_excerpt_control(
2860 &self,
2861 block_id: BlockId,
2862 direction: ExpandExcerptDirection,
2863 excerpt_id: ExcerptId,
2864 gutter_dimensions: &GutterDimensions,
2865 window: &Window,
2866 cx: &mut App,
2867 ) -> impl IntoElement {
2868 let color = cx.theme().colors().clone();
2869 let hover_color = color.border_variant.opacity(0.5);
2870 let focus_handle = self.editor.focus_handle(cx).clone();
2871
2872 let icon_offset =
2873 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2874 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2875 let group_name = if direction == ExpandExcerptDirection::Down {
2876 "expand-down"
2877 } else {
2878 "expand-up"
2879 };
2880
2881 let expand_area = |id: SharedString| {
2882 h_flex()
2883 .id(id)
2884 .w_full()
2885 .cursor_pointer()
2886 .block_mouse_down()
2887 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2888 .hover(|style| style.bg(hover_color))
2889 .tooltip({
2890 let focus_handle = focus_handle.clone();
2891 move |window, cx| {
2892 Tooltip::for_action_in(
2893 "Expand Excerpt",
2894 &ExpandExcerpts { lines: 0 },
2895 &focus_handle,
2896 window,
2897 cx,
2898 )
2899 }
2900 })
2901 };
2902
2903 expand_area(
2904 format!(
2905 "block-{}-{}",
2906 block_id,
2907 if direction == ExpandExcerptDirection::Down {
2908 "down"
2909 } else {
2910 "up"
2911 }
2912 )
2913 .into(),
2914 )
2915 .group(group_name)
2916 .child(
2917 h_flex()
2918 .w(icon_offset)
2919 .h(header_height)
2920 .flex_none()
2921 .justify_end()
2922 .child(
2923 ButtonLike::new("expand-icon")
2924 .style(ButtonStyle::Transparent)
2925 .child(
2926 svg()
2927 .path(if direction == ExpandExcerptDirection::Down {
2928 IconName::ArrowDownFromLine.path()
2929 } else {
2930 IconName::ArrowUpFromLine.path()
2931 })
2932 .size(IconSize::XSmall.rems())
2933 .text_color(cx.theme().colors().editor_line_number)
2934 .group_hover(group_name, |style| {
2935 style.text_color(cx.theme().colors().editor_active_line_number)
2936 }),
2937 ),
2938 ),
2939 )
2940 .on_click(window.listener_for(&self.editor, {
2941 move |editor, _, _, cx| {
2942 editor.expand_excerpt(excerpt_id, direction, cx);
2943 cx.stop_propagation();
2944 }
2945 }))
2946 }
2947
2948 #[allow(clippy::too_many_arguments)]
2949 fn render_blocks(
2950 &self,
2951 rows: Range<DisplayRow>,
2952 snapshot: &EditorSnapshot,
2953 hitbox: &Hitbox,
2954 text_hitbox: &Hitbox,
2955 editor_width: Pixels,
2956 scroll_width: &mut Pixels,
2957 gutter_dimensions: &GutterDimensions,
2958 em_width: Pixels,
2959 text_x: Pixels,
2960 line_height: Pixels,
2961 line_layouts: &[LineWithInvisibles],
2962 selections: &[Selection<Point>],
2963 selected_buffer_ids: &Vec<BufferId>,
2964 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2965 sticky_header_excerpt_id: Option<ExcerptId>,
2966 window: &mut Window,
2967 cx: &mut App,
2968 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2969 let (fixed_blocks, non_fixed_blocks) = snapshot
2970 .blocks_in_range(rows.clone())
2971 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2972
2973 let mut focused_block = self
2974 .editor
2975 .update(cx, |editor, _| editor.take_focused_block());
2976 let mut fixed_block_max_width = Pixels::ZERO;
2977 let mut blocks = Vec::new();
2978 let mut resized_blocks = HashMap::default();
2979
2980 for (row, block) in fixed_blocks {
2981 let block_id = block.id();
2982
2983 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2984 focused_block = None;
2985 }
2986
2987 let (element, element_size) = self.render_block(
2988 block,
2989 AvailableSpace::MinContent,
2990 block_id,
2991 row,
2992 snapshot,
2993 text_x,
2994 &rows,
2995 line_layouts,
2996 gutter_dimensions,
2997 line_height,
2998 em_width,
2999 text_hitbox,
3000 editor_width,
3001 scroll_width,
3002 &mut resized_blocks,
3003 selections,
3004 selected_buffer_ids,
3005 is_row_soft_wrapped,
3006 sticky_header_excerpt_id,
3007 window,
3008 cx,
3009 );
3010 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3011 blocks.push(BlockLayout {
3012 id: block_id,
3013 row: Some(row),
3014 element,
3015 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3016 style: BlockStyle::Fixed,
3017 });
3018 }
3019
3020 for (row, block) in non_fixed_blocks {
3021 let style = block.style();
3022 let width = match style {
3023 BlockStyle::Sticky => hitbox.size.width,
3024 BlockStyle::Flex => hitbox
3025 .size
3026 .width
3027 .max(fixed_block_max_width)
3028 .max(gutter_dimensions.width + *scroll_width),
3029 BlockStyle::Fixed => unreachable!(),
3030 };
3031 let block_id = block.id();
3032
3033 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3034 focused_block = None;
3035 }
3036
3037 let (element, element_size) = self.render_block(
3038 block,
3039 width.into(),
3040 block_id,
3041 row,
3042 snapshot,
3043 text_x,
3044 &rows,
3045 line_layouts,
3046 gutter_dimensions,
3047 line_height,
3048 em_width,
3049 text_hitbox,
3050 editor_width,
3051 scroll_width,
3052 &mut resized_blocks,
3053 selections,
3054 selected_buffer_ids,
3055 is_row_soft_wrapped,
3056 sticky_header_excerpt_id,
3057 window,
3058 cx,
3059 );
3060
3061 blocks.push(BlockLayout {
3062 id: block_id,
3063 row: Some(row),
3064 element,
3065 available_space: size(width.into(), element_size.height.into()),
3066 style,
3067 });
3068 }
3069
3070 if let Some(focused_block) = focused_block {
3071 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3072 if focus_handle.is_focused(window) {
3073 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3074 let style = block.style();
3075 let width = match style {
3076 BlockStyle::Fixed => AvailableSpace::MinContent,
3077 BlockStyle::Flex => AvailableSpace::Definite(
3078 hitbox
3079 .size
3080 .width
3081 .max(fixed_block_max_width)
3082 .max(gutter_dimensions.width + *scroll_width),
3083 ),
3084 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3085 };
3086
3087 let (element, element_size) = self.render_block(
3088 &block,
3089 width,
3090 focused_block.id,
3091 rows.end,
3092 snapshot,
3093 text_x,
3094 &rows,
3095 line_layouts,
3096 gutter_dimensions,
3097 line_height,
3098 em_width,
3099 text_hitbox,
3100 editor_width,
3101 scroll_width,
3102 &mut resized_blocks,
3103 selections,
3104 selected_buffer_ids,
3105 is_row_soft_wrapped,
3106 sticky_header_excerpt_id,
3107 window,
3108 cx,
3109 );
3110
3111 blocks.push(BlockLayout {
3112 id: block.id(),
3113 row: None,
3114 element,
3115 available_space: size(width, element_size.height.into()),
3116 style,
3117 });
3118 }
3119 }
3120 }
3121 }
3122
3123 if resized_blocks.is_empty() {
3124 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3125 Ok(blocks)
3126 } else {
3127 Err(resized_blocks)
3128 }
3129 }
3130
3131 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3132 /// a restart of rendering for the editor based on the new sizes.
3133 #[allow(clippy::too_many_arguments)]
3134 fn layout_blocks(
3135 &self,
3136 blocks: &mut Vec<BlockLayout>,
3137 block_starts: &mut HashSet<DisplayRow>,
3138 hitbox: &Hitbox,
3139 line_height: Pixels,
3140 scroll_pixel_position: gpui::Point<Pixels>,
3141 window: &mut Window,
3142 cx: &mut App,
3143 ) {
3144 for block in blocks {
3145 let mut origin = if let Some(row) = block.row {
3146 block_starts.insert(row);
3147 hitbox.origin
3148 + point(
3149 Pixels::ZERO,
3150 row.as_f32() * line_height - scroll_pixel_position.y,
3151 )
3152 } else {
3153 // Position the block outside the visible area
3154 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3155 };
3156
3157 if !matches!(block.style, BlockStyle::Sticky) {
3158 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3159 }
3160
3161 let focus_handle =
3162 block
3163 .element
3164 .prepaint_as_root(origin, block.available_space, window, cx);
3165
3166 if let Some(focus_handle) = focus_handle {
3167 self.editor.update(cx, |editor, _cx| {
3168 editor.set_focused_block(FocusedBlock {
3169 id: block.id,
3170 focus_handle: focus_handle.downgrade(),
3171 });
3172 });
3173 }
3174 }
3175 }
3176
3177 #[allow(clippy::too_many_arguments)]
3178 fn layout_sticky_buffer_header(
3179 &self,
3180 StickyHeaderExcerpt {
3181 excerpt,
3182 next_excerpt_controls_present,
3183 next_buffer_row,
3184 }: StickyHeaderExcerpt<'_>,
3185 scroll_position: f32,
3186 line_height: Pixels,
3187 snapshot: &EditorSnapshot,
3188 hitbox: &Hitbox,
3189 selected_buffer_ids: &Vec<BufferId>,
3190 window: &mut Window,
3191 cx: &mut App,
3192 ) -> AnyElement {
3193 let jump_data = header_jump_data(
3194 snapshot,
3195 DisplayRow(scroll_position as u32),
3196 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3197 excerpt,
3198 );
3199
3200 let editor_bg_color = cx.theme().colors().editor_background;
3201
3202 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3203
3204 let mut header = v_flex()
3205 .relative()
3206 .child(
3207 div()
3208 .w(hitbox.bounds.size.width)
3209 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3210 .bg(linear_gradient(
3211 0.,
3212 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3213 linear_color_stop(editor_bg_color, 0.6),
3214 ))
3215 .absolute()
3216 .top_0(),
3217 )
3218 .child(
3219 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3220 .into_any_element(),
3221 )
3222 .into_any_element();
3223
3224 let mut origin = hitbox.origin;
3225
3226 if let Some(next_buffer_row) = next_buffer_row {
3227 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3228
3229 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3230
3231 if next_excerpt_controls_present {
3232 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3233 }
3234
3235 let offset = scroll_position - max_row as f32;
3236
3237 if offset > 0.0 {
3238 origin.y -= Pixels(offset) * line_height;
3239 }
3240 }
3241
3242 let size = size(
3243 AvailableSpace::Definite(hitbox.size.width),
3244 AvailableSpace::MinContent,
3245 );
3246
3247 header.prepaint_as_root(origin, size, window, cx);
3248
3249 header
3250 }
3251
3252 #[allow(clippy::too_many_arguments)]
3253 fn layout_cursor_popovers(
3254 &self,
3255 line_height: Pixels,
3256 text_hitbox: &Hitbox,
3257 content_origin: gpui::Point<Pixels>,
3258 start_row: DisplayRow,
3259 scroll_pixel_position: gpui::Point<Pixels>,
3260 line_layouts: &[LineWithInvisibles],
3261 cursor: DisplayPoint,
3262 cursor_point: Point,
3263 style: &EditorStyle,
3264 window: &mut Window,
3265 cx: &mut App,
3266 ) {
3267 let mut min_menu_height = Pixels::ZERO;
3268 let mut max_menu_height = Pixels::ZERO;
3269 let mut height_above_menu = Pixels::ZERO;
3270 let height_below_menu = Pixels::ZERO;
3271 let mut edit_prediction_popover_visible = false;
3272 let mut context_menu_visible = false;
3273
3274 {
3275 let editor = self.editor.read(cx);
3276 if editor
3277 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3278 {
3279 height_above_menu +=
3280 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3281 edit_prediction_popover_visible = true;
3282 }
3283
3284 if editor.context_menu_visible() {
3285 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3286 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3287 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3288 context_menu_visible = true;
3289 }
3290 }
3291 }
3292
3293 let visible = edit_prediction_popover_visible || context_menu_visible;
3294 if !visible {
3295 return;
3296 }
3297
3298 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3299 let target_position = content_origin
3300 + gpui::Point {
3301 x: cmp::max(
3302 px(0.),
3303 cursor_row_layout.x_for_index(cursor.column() as usize)
3304 - scroll_pixel_position.x,
3305 ),
3306 y: cmp::max(
3307 px(0.),
3308 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3309 ),
3310 };
3311
3312 let viewport_bounds =
3313 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3314 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3315 ..Default::default()
3316 });
3317
3318 let min_height = height_above_menu + min_menu_height + height_below_menu;
3319 let max_height = height_above_menu + max_menu_height + height_below_menu;
3320 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3321 target_position,
3322 line_height,
3323 min_height,
3324 max_height,
3325 text_hitbox,
3326 viewport_bounds,
3327 window,
3328 cx,
3329 |height, max_width_for_stable_x, y_flipped, window, cx| {
3330 // First layout the menu to get its size - others can be at least this wide.
3331 let context_menu = if context_menu_visible {
3332 let menu_height = if y_flipped {
3333 height - height_below_menu
3334 } else {
3335 height - height_above_menu
3336 };
3337 let mut element = self
3338 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3339 .expect("Visible context menu should always render.");
3340 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3341 Some((CursorPopoverType::CodeContextMenu, element, size))
3342 } else {
3343 None
3344 };
3345 let min_width = context_menu
3346 .as_ref()
3347 .map_or(px(0.), |(_, _, size)| size.width);
3348 let max_width = max_width_for_stable_x.max(
3349 context_menu
3350 .as_ref()
3351 .map_or(px(0.), |(_, _, size)| size.width),
3352 );
3353
3354 let edit_prediction = if edit_prediction_popover_visible {
3355 self.editor.update(cx, move |editor, cx| {
3356 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3357 let mut element = editor.render_edit_prediction_cursor_popover(
3358 min_width,
3359 max_width,
3360 cursor_point,
3361 style,
3362 accept_binding.keystroke(),
3363 window,
3364 cx,
3365 )?;
3366 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3367 Some((CursorPopoverType::EditPrediction, element, size))
3368 })
3369 } else {
3370 None
3371 };
3372 vec![edit_prediction, context_menu]
3373 .into_iter()
3374 .flatten()
3375 .collect::<Vec<_>>()
3376 },
3377 ) else {
3378 return;
3379 };
3380
3381 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3382 .iter()
3383 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3384 else {
3385 return;
3386 };
3387 let last_ix = laid_out_popovers.len() - 1;
3388 let menu_is_last = menu_ix == last_ix;
3389 let first_popover_bounds = laid_out_popovers[0].1;
3390 let last_popover_bounds = laid_out_popovers[last_ix].1;
3391
3392 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3393 // right, and otherwise it goes below or to the right.
3394 let mut target_bounds = Bounds::from_corners(
3395 first_popover_bounds.origin,
3396 last_popover_bounds.bottom_right(),
3397 );
3398 target_bounds.size.width = menu_bounds.size.width;
3399
3400 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3401 // based on this is preferred for layout stability.
3402 let mut max_target_bounds = target_bounds;
3403 max_target_bounds.size.height = max_height;
3404 if y_flipped {
3405 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3406 }
3407
3408 // Add spacing around `target_bounds` and `max_target_bounds`.
3409 let mut extend_amount = Edges::all(MENU_GAP);
3410 if y_flipped {
3411 extend_amount.bottom = line_height;
3412 } else {
3413 extend_amount.top = line_height;
3414 }
3415 let target_bounds = target_bounds.extend(extend_amount);
3416 let max_target_bounds = max_target_bounds.extend(extend_amount);
3417
3418 let must_place_above_or_below =
3419 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3420 laid_out_popovers[menu_ix + 1..]
3421 .iter()
3422 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3423 } else {
3424 false
3425 };
3426
3427 self.layout_context_menu_aside(
3428 y_flipped,
3429 *menu_bounds,
3430 target_bounds,
3431 max_target_bounds,
3432 max_menu_height,
3433 must_place_above_or_below,
3434 text_hitbox,
3435 viewport_bounds,
3436 window,
3437 cx,
3438 );
3439 }
3440
3441 #[allow(clippy::too_many_arguments)]
3442 fn layout_gutter_menu(
3443 &self,
3444 line_height: Pixels,
3445 text_hitbox: &Hitbox,
3446 content_origin: gpui::Point<Pixels>,
3447 scroll_pixel_position: gpui::Point<Pixels>,
3448 gutter_overshoot: Pixels,
3449 window: &mut Window,
3450 cx: &mut App,
3451 ) {
3452 let editor = self.editor.read(cx);
3453 if !editor.context_menu_visible() {
3454 return;
3455 }
3456 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3457 editor.context_menu_origin()
3458 else {
3459 return;
3460 };
3461 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3462 // indicator than just a plain first column of the text field.
3463 let target_position = content_origin
3464 + gpui::Point {
3465 x: -gutter_overshoot,
3466 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3467 };
3468 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3469 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3470 let viewport_bounds =
3471 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3472 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3473 ..Default::default()
3474 });
3475 self.layout_popovers_above_or_below_line(
3476 target_position,
3477 line_height,
3478 min_height,
3479 max_height,
3480 text_hitbox,
3481 viewport_bounds,
3482 window,
3483 cx,
3484 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3485 let mut element = self
3486 .render_context_menu(line_height, height, y_flipped, window, cx)
3487 .expect("Visible context menu should always render.");
3488 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3489 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3490 },
3491 );
3492 }
3493
3494 #[allow(clippy::too_many_arguments)]
3495 fn layout_popovers_above_or_below_line(
3496 &self,
3497 target_position: gpui::Point<Pixels>,
3498 line_height: Pixels,
3499 min_height: Pixels,
3500 max_height: Pixels,
3501 text_hitbox: &Hitbox,
3502 viewport_bounds: Bounds<Pixels>,
3503 window: &mut Window,
3504 cx: &mut App,
3505 make_sized_popovers: impl FnOnce(
3506 Pixels,
3507 Pixels,
3508 bool,
3509 &mut Window,
3510 &mut App,
3511 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3512 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3513 let text_style = TextStyleRefinement {
3514 line_height: Some(DefiniteLength::Fraction(
3515 BufferLineHeight::Comfortable.value(),
3516 )),
3517 ..Default::default()
3518 };
3519 window.with_text_style(Some(text_style), |window| {
3520 // If the max height won't fit below and there is more space above, put it above the line.
3521 let bottom_y_when_flipped = target_position.y - line_height;
3522 let available_above = bottom_y_when_flipped - text_hitbox.top();
3523 let available_below = text_hitbox.bottom() - target_position.y;
3524 let y_overflows_below = max_height > available_below;
3525 let mut y_flipped = y_overflows_below && available_above > available_below;
3526 let mut height = cmp::min(
3527 max_height,
3528 if y_flipped {
3529 available_above
3530 } else {
3531 available_below
3532 },
3533 );
3534
3535 // If the min height doesn't fit within text bounds, instead fit within the window.
3536 if height < min_height {
3537 let available_above = bottom_y_when_flipped;
3538 let available_below = viewport_bounds.bottom() - target_position.y;
3539 if available_below > min_height {
3540 y_flipped = false;
3541 height = min_height;
3542 } else if available_above > min_height {
3543 y_flipped = true;
3544 height = min_height;
3545 } else if available_above > available_below {
3546 y_flipped = true;
3547 height = available_above;
3548 } else {
3549 y_flipped = false;
3550 height = available_below;
3551 }
3552 }
3553
3554 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3555
3556 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3557 // for very narrow windows.
3558 let popovers =
3559 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3560 if popovers.is_empty() {
3561 return None;
3562 }
3563
3564 let max_width = popovers
3565 .iter()
3566 .map(|(_, _, size)| size.width)
3567 .max()
3568 .unwrap_or_default();
3569
3570 let mut current_position = gpui::Point {
3571 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3572 // overflow. Include space for the scrollbar.
3573 x: target_position
3574 .x
3575 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3576 y: if y_flipped {
3577 bottom_y_when_flipped
3578 } else {
3579 target_position.y
3580 },
3581 };
3582
3583 let mut laid_out_popovers = popovers
3584 .into_iter()
3585 .map(|(popover_type, element, size)| {
3586 if y_flipped {
3587 current_position.y -= size.height;
3588 }
3589 let position = current_position;
3590 window.defer_draw(element, current_position, 1);
3591 if !y_flipped {
3592 current_position.y += size.height + MENU_GAP;
3593 } else {
3594 current_position.y -= MENU_GAP;
3595 }
3596 (popover_type, Bounds::new(position, size))
3597 })
3598 .collect::<Vec<_>>();
3599
3600 if y_flipped {
3601 laid_out_popovers.reverse();
3602 }
3603
3604 Some((laid_out_popovers, y_flipped))
3605 })
3606 }
3607
3608 #[allow(clippy::too_many_arguments)]
3609 fn layout_context_menu_aside(
3610 &self,
3611 y_flipped: bool,
3612 menu_bounds: Bounds<Pixels>,
3613 target_bounds: Bounds<Pixels>,
3614 max_target_bounds: Bounds<Pixels>,
3615 max_height: Pixels,
3616 must_place_above_or_below: bool,
3617 text_hitbox: &Hitbox,
3618 viewport_bounds: Bounds<Pixels>,
3619 window: &mut Window,
3620 cx: &mut App,
3621 ) {
3622 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3623 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3624 && !must_place_above_or_below
3625 {
3626 let max_width = cmp::min(
3627 available_within_viewport.right - px(1.),
3628 MENU_ASIDE_MAX_WIDTH,
3629 );
3630 let Some(mut aside) = self.render_context_menu_aside(
3631 size(max_width, max_height - POPOVER_Y_PADDING),
3632 window,
3633 cx,
3634 ) else {
3635 return;
3636 };
3637 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3638 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3639 Some((aside, right_position))
3640 } else {
3641 let max_size = size(
3642 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3643 // won't be needed here.
3644 cmp::min(
3645 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3646 viewport_bounds.right(),
3647 ),
3648 cmp::min(
3649 max_height,
3650 cmp::max(
3651 available_within_viewport.top,
3652 available_within_viewport.bottom,
3653 ),
3654 ) - POPOVER_Y_PADDING,
3655 );
3656 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3657 return;
3658 };
3659 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3660
3661 let top_position = point(
3662 menu_bounds.origin.x,
3663 target_bounds.top() - actual_size.height,
3664 );
3665 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3666
3667 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3668 // Prefer to fit on the same side of the line as the menu, then on the other side of
3669 // the line.
3670 if !y_flipped && wanted.height < available.bottom {
3671 Some(bottom_position)
3672 } else if !y_flipped && wanted.height < available.top {
3673 Some(top_position)
3674 } else if y_flipped && wanted.height < available.top {
3675 Some(top_position)
3676 } else if y_flipped && wanted.height < available.bottom {
3677 Some(bottom_position)
3678 } else {
3679 None
3680 }
3681 };
3682
3683 // Prefer choosing a direction using max sizes rather than actual size for stability.
3684 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3685 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3686 let aside_position = fit_within(available_within_text, wanted)
3687 // Fallback: fit max size in window.
3688 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3689 // Fallback: fit actual size in window.
3690 .or_else(|| fit_within(available_within_viewport, actual_size));
3691
3692 aside_position.map(|position| (aside, position))
3693 };
3694
3695 // Skip drawing if it doesn't fit anywhere.
3696 if let Some((aside, position)) = positioned_aside {
3697 window.defer_draw(aside, position, 2);
3698 }
3699 }
3700
3701 fn render_context_menu(
3702 &self,
3703 line_height: Pixels,
3704 height: Pixels,
3705 y_flipped: bool,
3706 window: &mut Window,
3707 cx: &mut App,
3708 ) -> Option<AnyElement> {
3709 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3710 self.editor.update(cx, |editor, cx| {
3711 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3712 })
3713 }
3714
3715 fn render_context_menu_aside(
3716 &self,
3717 max_size: Size<Pixels>,
3718 window: &mut Window,
3719 cx: &mut App,
3720 ) -> Option<AnyElement> {
3721 if max_size.width < px(100.) || max_size.height < px(12.) {
3722 None
3723 } else {
3724 self.editor.update(cx, |editor, cx| {
3725 editor.render_context_menu_aside(max_size, window, cx)
3726 })
3727 }
3728 }
3729
3730 fn layout_mouse_context_menu(
3731 &self,
3732 editor_snapshot: &EditorSnapshot,
3733 visible_range: Range<DisplayRow>,
3734 content_origin: gpui::Point<Pixels>,
3735 window: &mut Window,
3736 cx: &mut App,
3737 ) -> Option<AnyElement> {
3738 let position = self.editor.update(cx, |editor, _cx| {
3739 let visible_start_point = editor.display_to_pixel_point(
3740 DisplayPoint::new(visible_range.start, 0),
3741 editor_snapshot,
3742 window,
3743 )?;
3744 let visible_end_point = editor.display_to_pixel_point(
3745 DisplayPoint::new(visible_range.end, 0),
3746 editor_snapshot,
3747 window,
3748 )?;
3749
3750 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3751 let (source_display_point, position) = match mouse_context_menu.position {
3752 MenuPosition::PinnedToScreen(point) => (None, point),
3753 MenuPosition::PinnedToEditor { source, offset } => {
3754 let source_display_point = source.to_display_point(editor_snapshot);
3755 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3756 let position = content_origin + source_point + offset;
3757 (Some(source_display_point), position)
3758 }
3759 };
3760
3761 let source_included = source_display_point.map_or(true, |source_display_point| {
3762 visible_range
3763 .to_inclusive()
3764 .contains(&source_display_point.row())
3765 });
3766 let position_included =
3767 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3768 if !source_included && !position_included {
3769 None
3770 } else {
3771 Some(position)
3772 }
3773 })?;
3774
3775 let text_style = TextStyleRefinement {
3776 line_height: Some(DefiniteLength::Fraction(
3777 BufferLineHeight::Comfortable.value(),
3778 )),
3779 ..Default::default()
3780 };
3781 window.with_text_style(Some(text_style), |window| {
3782 let mut element = self.editor.update(cx, |editor, _| {
3783 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3784 let context_menu = mouse_context_menu.context_menu.clone();
3785
3786 Some(
3787 deferred(
3788 anchored()
3789 .position(position)
3790 .child(context_menu)
3791 .anchor(Corner::TopLeft)
3792 .snap_to_window_with_margin(px(8.)),
3793 )
3794 .with_priority(1)
3795 .into_any(),
3796 )
3797 })?;
3798
3799 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3800 Some(element)
3801 })
3802 }
3803
3804 #[allow(clippy::too_many_arguments)]
3805 fn layout_hover_popovers(
3806 &self,
3807 snapshot: &EditorSnapshot,
3808 hitbox: &Hitbox,
3809 text_hitbox: &Hitbox,
3810 visible_display_row_range: Range<DisplayRow>,
3811 content_origin: gpui::Point<Pixels>,
3812 scroll_pixel_position: gpui::Point<Pixels>,
3813 line_layouts: &[LineWithInvisibles],
3814 line_height: Pixels,
3815 em_width: Pixels,
3816 window: &mut Window,
3817 cx: &mut App,
3818 ) {
3819 struct MeasuredHoverPopover {
3820 element: AnyElement,
3821 size: Size<Pixels>,
3822 horizontal_offset: Pixels,
3823 }
3824
3825 let max_size = size(
3826 (120. * em_width) // Default size
3827 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3828 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3829 (16. * line_height) // Default size
3830 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3831 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3832 );
3833
3834 let hover_popovers = self.editor.update(cx, |editor, cx| {
3835 editor
3836 .hover_state
3837 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3838 });
3839 let Some((position, hover_popovers)) = hover_popovers else {
3840 return;
3841 };
3842
3843 // This is safe because we check on layout whether the required row is available
3844 let hovered_row_layout =
3845 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3846
3847 // Compute Hovered Point
3848 let x =
3849 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3850 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3851 let hovered_point = content_origin + point(x, y);
3852
3853 let mut overall_height = Pixels::ZERO;
3854 let mut measured_hover_popovers = Vec::new();
3855 for mut hover_popover in hover_popovers {
3856 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3857 let horizontal_offset =
3858 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3859
3860 overall_height += HOVER_POPOVER_GAP + size.height;
3861
3862 measured_hover_popovers.push(MeasuredHoverPopover {
3863 element: hover_popover,
3864 size,
3865 horizontal_offset,
3866 });
3867 }
3868 overall_height += HOVER_POPOVER_GAP;
3869
3870 fn draw_occluder(
3871 width: Pixels,
3872 origin: gpui::Point<Pixels>,
3873 window: &mut Window,
3874 cx: &mut App,
3875 ) {
3876 let mut occlusion = div()
3877 .size_full()
3878 .occlude()
3879 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3880 .into_any_element();
3881 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3882 window.defer_draw(occlusion, origin, 2);
3883 }
3884
3885 if hovered_point.y > overall_height {
3886 // There is enough space above. Render popovers above the hovered point
3887 let mut current_y = hovered_point.y;
3888 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3889 let size = popover.size;
3890 let popover_origin = point(
3891 hovered_point.x + popover.horizontal_offset,
3892 current_y - size.height,
3893 );
3894
3895 window.defer_draw(popover.element, popover_origin, 2);
3896 if position != itertools::Position::Last {
3897 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3898 draw_occluder(size.width, origin, window, cx);
3899 }
3900
3901 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3902 }
3903 } else {
3904 // There is not enough space above. Render popovers below the hovered point
3905 let mut current_y = hovered_point.y + line_height;
3906 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3907 let size = popover.size;
3908 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3909
3910 window.defer_draw(popover.element, popover_origin, 2);
3911 if position != itertools::Position::Last {
3912 let origin = point(popover_origin.x, popover_origin.y + size.height);
3913 draw_occluder(size.width, origin, window, cx);
3914 }
3915
3916 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3917 }
3918 }
3919 }
3920
3921 #[allow(clippy::too_many_arguments)]
3922 fn layout_diff_hunk_controls(
3923 &self,
3924 row_range: Range<DisplayRow>,
3925 row_infos: &[RowInfo],
3926 text_hitbox: &Hitbox,
3927 position_map: &PositionMap,
3928 newest_cursor_position: Option<DisplayPoint>,
3929 line_height: Pixels,
3930 scroll_pixel_position: gpui::Point<Pixels>,
3931 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3932 editor: Entity<Editor>,
3933 window: &mut Window,
3934 cx: &mut App,
3935 ) -> Vec<AnyElement> {
3936 let point_for_position = position_map.point_for_position(window.mouse_position());
3937
3938 let mut controls = vec![];
3939
3940 let active_positions = [
3941 Some(point_for_position.previous_valid),
3942 newest_cursor_position,
3943 ];
3944
3945 for (hunk, _) in display_hunks {
3946 if let DisplayDiffHunk::Unfolded {
3947 display_row_range,
3948 multi_buffer_range,
3949 status,
3950 ..
3951 } = &hunk
3952 {
3953 if display_row_range.start < row_range.start
3954 || display_row_range.start >= row_range.end
3955 {
3956 continue;
3957 }
3958 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3959 if row_infos[row_ix].diff_status.is_none() {
3960 continue;
3961 }
3962 if row_infos[row_ix]
3963 .diff_status
3964 .is_some_and(|status| status.is_added())
3965 && !status.is_added()
3966 {
3967 continue;
3968 }
3969 if active_positions
3970 .iter()
3971 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3972 {
3973 let y = display_row_range.start.as_f32() * line_height
3974 + text_hitbox.bounds.top()
3975 - scroll_pixel_position.y;
3976
3977 let mut element = diff_hunk_controls(
3978 display_row_range.start.0,
3979 status,
3980 multi_buffer_range.clone(),
3981 line_height,
3982 &editor,
3983 cx,
3984 );
3985 let size =
3986 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3987
3988 let x = text_hitbox.bounds.right()
3989 - self.style.scrollbar_width
3990 - px(10.)
3991 - size.width;
3992
3993 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3994 element.prepaint(window, cx)
3995 });
3996 controls.push(element);
3997 }
3998 }
3999 }
4000
4001 controls
4002 }
4003
4004 #[allow(clippy::too_many_arguments)]
4005 fn layout_signature_help(
4006 &self,
4007 hitbox: &Hitbox,
4008 content_origin: gpui::Point<Pixels>,
4009 scroll_pixel_position: gpui::Point<Pixels>,
4010 newest_selection_head: Option<DisplayPoint>,
4011 start_row: DisplayRow,
4012 line_layouts: &[LineWithInvisibles],
4013 line_height: Pixels,
4014 em_width: Pixels,
4015 window: &mut Window,
4016 cx: &mut App,
4017 ) {
4018 if !self.editor.focus_handle(cx).is_focused(window) {
4019 return;
4020 }
4021 let Some(newest_selection_head) = newest_selection_head else {
4022 return;
4023 };
4024 let selection_row = newest_selection_head.row();
4025 if selection_row < start_row {
4026 return;
4027 }
4028 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4029 else {
4030 return;
4031 };
4032
4033 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4034 - scroll_pixel_position.x
4035 + content_origin.x;
4036 let start_y =
4037 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4038
4039 let max_size = size(
4040 (120. * em_width) // Default size
4041 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4042 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4043 (16. * line_height) // Default size
4044 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4045 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4046 );
4047
4048 let maybe_element = self.editor.update(cx, |editor, cx| {
4049 if let Some(popover) = editor.signature_help_state.popover_mut() {
4050 let element = popover.render(max_size, cx);
4051 Some(element)
4052 } else {
4053 None
4054 }
4055 });
4056 if let Some(mut element) = maybe_element {
4057 let window_size = window.viewport_size();
4058 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4059 let mut point = point(start_x, start_y - size.height);
4060
4061 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4062 if point.x + size.width >= window_size.width {
4063 point.x = window_size.width - size.width;
4064 }
4065
4066 window.defer_draw(element, point, 1)
4067 }
4068 }
4069
4070 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4071 window.paint_layer(layout.hitbox.bounds, |window| {
4072 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4073 let gutter_bg = cx.theme().colors().editor_gutter_background;
4074 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4075 window.paint_quad(fill(
4076 layout.position_map.text_hitbox.bounds,
4077 self.style.background,
4078 ));
4079
4080 if let EditorMode::Full = layout.mode {
4081 let mut active_rows = layout.active_rows.iter().peekable();
4082 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4083 let mut end_row = start_row.0;
4084 while active_rows
4085 .peek()
4086 .map_or(false, |(active_row, has_selection)| {
4087 active_row.0 == end_row + 1
4088 && *has_selection == contains_non_empty_selection
4089 })
4090 {
4091 active_rows.next().unwrap();
4092 end_row += 1;
4093 }
4094
4095 if !contains_non_empty_selection {
4096 let highlight_h_range =
4097 match layout.position_map.snapshot.current_line_highlight {
4098 CurrentLineHighlight::Gutter => Some(Range {
4099 start: layout.hitbox.left(),
4100 end: layout.gutter_hitbox.right(),
4101 }),
4102 CurrentLineHighlight::Line => Some(Range {
4103 start: layout.position_map.text_hitbox.bounds.left(),
4104 end: layout.position_map.text_hitbox.bounds.right(),
4105 }),
4106 CurrentLineHighlight::All => Some(Range {
4107 start: layout.hitbox.left(),
4108 end: layout.hitbox.right(),
4109 }),
4110 CurrentLineHighlight::None => None,
4111 };
4112 if let Some(range) = highlight_h_range {
4113 let active_line_bg = cx.theme().colors().editor_active_line_background;
4114 let bounds = Bounds {
4115 origin: point(
4116 range.start,
4117 layout.hitbox.origin.y
4118 + (start_row.as_f32() - scroll_top)
4119 * layout.position_map.line_height,
4120 ),
4121 size: size(
4122 range.end - range.start,
4123 layout.position_map.line_height
4124 * (end_row - start_row.0 + 1) as f32,
4125 ),
4126 };
4127 window.paint_quad(fill(bounds, active_line_bg));
4128 }
4129 }
4130 }
4131
4132 let mut paint_highlight =
4133 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4134 let origin = point(
4135 layout.hitbox.origin.x,
4136 layout.hitbox.origin.y
4137 + (highlight_row_start.as_f32() - scroll_top)
4138 * layout.position_map.line_height,
4139 );
4140 let size = size(
4141 layout.hitbox.size.width,
4142 layout.position_map.line_height
4143 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4144 );
4145 window.paint_quad(fill(Bounds { origin, size }, color));
4146 };
4147
4148 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4149 for (&new_row, &new_background) in &layout.highlighted_rows {
4150 match &mut current_paint {
4151 Some((current_background, current_range)) => {
4152 let current_background = *current_background;
4153 let new_range_started = current_background != new_background
4154 || current_range.end.next_row() != new_row;
4155 if new_range_started {
4156 paint_highlight(
4157 current_range.start,
4158 current_range.end,
4159 current_background,
4160 );
4161 current_paint = Some((new_background, new_row..new_row));
4162 continue;
4163 } else {
4164 current_range.end = current_range.end.next_row();
4165 }
4166 }
4167 None => current_paint = Some((new_background, new_row..new_row)),
4168 };
4169 }
4170 if let Some((color, range)) = current_paint {
4171 paint_highlight(range.start, range.end, color);
4172 }
4173
4174 let scroll_left =
4175 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4176
4177 for (wrap_position, active) in layout.wrap_guides.iter() {
4178 let x = (layout.position_map.text_hitbox.origin.x
4179 + *wrap_position
4180 + layout.position_map.em_width / 2.)
4181 - scroll_left;
4182
4183 let show_scrollbars = {
4184 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4185
4186 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4187 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4188 };
4189
4190 if x < layout.position_map.text_hitbox.origin.x
4191 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4192 {
4193 continue;
4194 }
4195
4196 let color = if *active {
4197 cx.theme().colors().editor_active_wrap_guide
4198 } else {
4199 cx.theme().colors().editor_wrap_guide
4200 };
4201 window.paint_quad(fill(
4202 Bounds {
4203 origin: point(x, layout.position_map.text_hitbox.origin.y),
4204 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4205 },
4206 color,
4207 ));
4208 }
4209 }
4210 })
4211 }
4212
4213 fn paint_indent_guides(
4214 &mut self,
4215 layout: &mut EditorLayout,
4216 window: &mut Window,
4217 cx: &mut App,
4218 ) {
4219 let Some(indent_guides) = &layout.indent_guides else {
4220 return;
4221 };
4222
4223 let faded_color = |color: Hsla, alpha: f32| {
4224 let mut faded = color;
4225 faded.a = alpha;
4226 faded
4227 };
4228
4229 for indent_guide in indent_guides {
4230 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4231 let settings = indent_guide.settings;
4232
4233 // TODO fixed for now, expose them through themes later
4234 const INDENT_AWARE_ALPHA: f32 = 0.2;
4235 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4236 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4237 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4238
4239 let line_color = match (settings.coloring, indent_guide.active) {
4240 (IndentGuideColoring::Disabled, _) => None,
4241 (IndentGuideColoring::Fixed, false) => {
4242 Some(cx.theme().colors().editor_indent_guide)
4243 }
4244 (IndentGuideColoring::Fixed, true) => {
4245 Some(cx.theme().colors().editor_indent_guide_active)
4246 }
4247 (IndentGuideColoring::IndentAware, false) => {
4248 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4249 }
4250 (IndentGuideColoring::IndentAware, true) => {
4251 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4252 }
4253 };
4254
4255 let background_color = match (settings.background_coloring, indent_guide.active) {
4256 (IndentGuideBackgroundColoring::Disabled, _) => None,
4257 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4258 indent_accent_colors,
4259 INDENT_AWARE_BACKGROUND_ALPHA,
4260 )),
4261 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4262 indent_accent_colors,
4263 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4264 )),
4265 };
4266
4267 let requested_line_width = if indent_guide.active {
4268 settings.active_line_width
4269 } else {
4270 settings.line_width
4271 }
4272 .clamp(1, 10);
4273 let mut line_indicator_width = 0.;
4274 if let Some(color) = line_color {
4275 window.paint_quad(fill(
4276 Bounds {
4277 origin: indent_guide.origin,
4278 size: size(px(requested_line_width as f32), indent_guide.length),
4279 },
4280 color,
4281 ));
4282 line_indicator_width = requested_line_width as f32;
4283 }
4284
4285 if let Some(color) = background_color {
4286 let width = indent_guide.single_indent_width - px(line_indicator_width);
4287 window.paint_quad(fill(
4288 Bounds {
4289 origin: point(
4290 indent_guide.origin.x + px(line_indicator_width),
4291 indent_guide.origin.y,
4292 ),
4293 size: size(width, indent_guide.length),
4294 },
4295 color,
4296 ));
4297 }
4298 }
4299 }
4300
4301 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4302 let is_singleton = self.editor.read(cx).is_singleton(cx);
4303
4304 let line_height = layout.position_map.line_height;
4305 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4306
4307 for LineNumberLayout {
4308 shaped_line,
4309 hitbox,
4310 display_row,
4311 } in layout.line_numbers.values()
4312 {
4313 let Some(hitbox) = hitbox else {
4314 continue;
4315 };
4316
4317 let is_active = layout.active_rows.contains_key(&display_row);
4318
4319 let color = if is_active {
4320 cx.theme().colors().editor_active_line_number
4321 } else if !is_singleton && hitbox.is_hovered(window) {
4322 cx.theme().colors().editor_hover_line_number
4323 } else {
4324 cx.theme().colors().editor_line_number
4325 };
4326
4327 let Some(line) = self
4328 .shape_line_number(shaped_line.text.clone(), color, window)
4329 .log_err()
4330 else {
4331 continue;
4332 };
4333 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4334 continue;
4335 };
4336 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4337 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4338 if is_singleton {
4339 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4340 } else {
4341 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4342 }
4343 }
4344 }
4345
4346 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4347 let is_light = cx.theme().appearance().is_light();
4348
4349 if layout.display_hunks.is_empty() {
4350 return;
4351 }
4352
4353 let line_height = layout.position_map.line_height;
4354 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4355 for (hunk, hitbox) in &layout.display_hunks {
4356 let hunk_to_paint = match hunk {
4357 DisplayDiffHunk::Folded { .. } => {
4358 let hunk_bounds = Self::diff_hunk_bounds(
4359 &layout.position_map.snapshot,
4360 line_height,
4361 layout.gutter_hitbox.bounds,
4362 hunk,
4363 );
4364 Some((
4365 hunk_bounds,
4366 cx.theme().colors().version_control_modified,
4367 Corners::all(px(0.)),
4368 DiffHunkStatus::modified_none(),
4369 ))
4370 }
4371 DisplayDiffHunk::Unfolded {
4372 status,
4373 display_row_range,
4374 ..
4375 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4376 DiffHunkStatusKind::Added => (
4377 hunk_hitbox.bounds,
4378 cx.theme().colors().version_control_added,
4379 Corners::all(px(0.)),
4380 *status,
4381 ),
4382 DiffHunkStatusKind::Modified => (
4383 hunk_hitbox.bounds,
4384 cx.theme().colors().version_control_modified,
4385 Corners::all(px(0.)),
4386 *status,
4387 ),
4388 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4389 hunk_hitbox.bounds,
4390 cx.theme().colors().version_control_deleted,
4391 Corners::all(px(0.)),
4392 *status,
4393 ),
4394 DiffHunkStatusKind::Deleted => (
4395 Bounds::new(
4396 point(
4397 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4398 hunk_hitbox.origin.y,
4399 ),
4400 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4401 ),
4402 cx.theme().colors().version_control_deleted,
4403 Corners::all(1. * line_height),
4404 *status,
4405 ),
4406 }),
4407 };
4408
4409 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4410 hunk_to_paint
4411 {
4412 if secondary_status.has_secondary_hunk() {
4413 background_color =
4414 background_color.opacity(if is_light { 0.2 } else { 0.32 });
4415 }
4416 window.paint_quad(quad(
4417 hunk_bounds,
4418 corner_radii,
4419 background_color,
4420 Edges::default(),
4421 transparent_black(),
4422 ));
4423 }
4424 }
4425 });
4426 }
4427
4428 fn diff_hunk_bounds(
4429 snapshot: &EditorSnapshot,
4430 line_height: Pixels,
4431 gutter_bounds: Bounds<Pixels>,
4432 hunk: &DisplayDiffHunk,
4433 ) -> Bounds<Pixels> {
4434 let scroll_position = snapshot.scroll_position();
4435 let scroll_top = scroll_position.y * line_height;
4436 let gutter_strip_width = (0.275 * line_height).floor();
4437
4438 match hunk {
4439 DisplayDiffHunk::Folded { display_row, .. } => {
4440 let start_y = display_row.as_f32() * line_height - scroll_top;
4441 let end_y = start_y + line_height;
4442 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4443 let highlight_size = size(gutter_strip_width, end_y - start_y);
4444 Bounds::new(highlight_origin, highlight_size)
4445 }
4446 DisplayDiffHunk::Unfolded {
4447 display_row_range,
4448 status,
4449 ..
4450 } => {
4451 if status.is_deleted() && display_row_range.is_empty() {
4452 let row = display_row_range.start;
4453
4454 let offset = line_height / 2.;
4455 let start_y = row.as_f32() * line_height - offset - scroll_top;
4456 let end_y = start_y + line_height;
4457
4458 let width = (0.35 * line_height).floor();
4459 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4460 let highlight_size = size(width, end_y - start_y);
4461 Bounds::new(highlight_origin, highlight_size)
4462 } else {
4463 let start_row = display_row_range.start;
4464 let end_row = display_row_range.end;
4465 // If we're in a multibuffer, row range span might include an
4466 // excerpt header, so if we were to draw the marker straight away,
4467 // the hunk might include the rows of that header.
4468 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4469 // Instead, we simply check whether the range we're dealing with includes
4470 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4471 let end_row_in_current_excerpt = snapshot
4472 .blocks_in_range(start_row..end_row)
4473 .find_map(|(start_row, block)| {
4474 if matches!(block, Block::ExcerptBoundary { .. }) {
4475 Some(start_row)
4476 } else {
4477 None
4478 }
4479 })
4480 .unwrap_or(end_row);
4481
4482 let start_y = start_row.as_f32() * line_height - scroll_top;
4483 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4484
4485 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4486 let highlight_size = size(gutter_strip_width, end_y - start_y);
4487 Bounds::new(highlight_origin, highlight_size)
4488 }
4489 }
4490 }
4491 }
4492
4493 fn paint_gutter_indicators(
4494 &self,
4495 layout: &mut EditorLayout,
4496 window: &mut Window,
4497 cx: &mut App,
4498 ) {
4499 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4500 window.with_element_namespace("crease_toggles", |window| {
4501 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4502 crease_toggle.paint(window, cx);
4503 }
4504 });
4505
4506 for test_indicator in layout.test_indicators.iter_mut() {
4507 test_indicator.paint(window, cx);
4508 }
4509
4510 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4511 indicator.paint(window, cx);
4512 }
4513 });
4514 }
4515
4516 fn paint_gutter_highlights(
4517 &self,
4518 layout: &mut EditorLayout,
4519 window: &mut Window,
4520 cx: &mut App,
4521 ) {
4522 for (_, hunk_hitbox) in &layout.display_hunks {
4523 if let Some(hunk_hitbox) = hunk_hitbox {
4524 if !self
4525 .editor
4526 .read(cx)
4527 .buffer()
4528 .read(cx)
4529 .all_diff_hunks_expanded()
4530 {
4531 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4532 }
4533 }
4534 }
4535
4536 let show_git_gutter = layout
4537 .position_map
4538 .snapshot
4539 .show_git_diff_gutter
4540 .unwrap_or_else(|| {
4541 matches!(
4542 ProjectSettings::get_global(cx).git.git_gutter,
4543 Some(GitGutterSetting::TrackedFiles)
4544 )
4545 });
4546 if show_git_gutter {
4547 Self::paint_diff_hunks(layout, window, cx)
4548 }
4549
4550 let highlight_width = 0.275 * layout.position_map.line_height;
4551 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4552 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4553 for (range, color) in &layout.highlighted_gutter_ranges {
4554 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4555 layout.visible_display_row_range.start - DisplayRow(1)
4556 } else {
4557 range.start.row()
4558 };
4559 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4560 layout.visible_display_row_range.end + DisplayRow(1)
4561 } else {
4562 range.end.row()
4563 };
4564
4565 let start_y = layout.gutter_hitbox.top()
4566 + start_row.0 as f32 * layout.position_map.line_height
4567 - layout.position_map.scroll_pixel_position.y;
4568 let end_y = layout.gutter_hitbox.top()
4569 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4570 - layout.position_map.scroll_pixel_position.y;
4571 let bounds = Bounds::from_corners(
4572 point(layout.gutter_hitbox.left(), start_y),
4573 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4574 );
4575 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4576 }
4577 });
4578 }
4579
4580 fn paint_blamed_display_rows(
4581 &self,
4582 layout: &mut EditorLayout,
4583 window: &mut Window,
4584 cx: &mut App,
4585 ) {
4586 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4587 return;
4588 };
4589
4590 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4591 for mut blame_element in blamed_display_rows.into_iter() {
4592 blame_element.paint(window, cx);
4593 }
4594 })
4595 }
4596
4597 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4598 window.with_content_mask(
4599 Some(ContentMask {
4600 bounds: layout.position_map.text_hitbox.bounds,
4601 }),
4602 |window| {
4603 let cursor_style = if self
4604 .editor
4605 .read(cx)
4606 .hovered_link_state
4607 .as_ref()
4608 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4609 {
4610 CursorStyle::PointingHand
4611 } else {
4612 CursorStyle::IBeam
4613 };
4614 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4615
4616 let invisible_display_ranges = self.paint_highlights(layout, window);
4617 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4618 self.paint_redactions(layout, window);
4619 self.paint_cursors(layout, window, cx);
4620 self.paint_inline_diagnostics(layout, window, cx);
4621 self.paint_inline_blame(layout, window, cx);
4622 self.paint_diff_hunk_controls(layout, window, cx);
4623 window.with_element_namespace("crease_trailers", |window| {
4624 for trailer in layout.crease_trailers.iter_mut().flatten() {
4625 trailer.element.paint(window, cx);
4626 }
4627 });
4628 },
4629 )
4630 }
4631
4632 fn paint_highlights(
4633 &mut self,
4634 layout: &mut EditorLayout,
4635 window: &mut Window,
4636 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4637 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4638 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4639 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4640 for (range, color) in &layout.highlighted_ranges {
4641 self.paint_highlighted_range(
4642 range.clone(),
4643 *color,
4644 Pixels::ZERO,
4645 line_end_overshoot,
4646 layout,
4647 window,
4648 );
4649 }
4650
4651 let corner_radius = 0.15 * layout.position_map.line_height;
4652
4653 for (player_color, selections) in &layout.selections {
4654 for selection in selections.iter() {
4655 self.paint_highlighted_range(
4656 selection.range.clone(),
4657 player_color.selection,
4658 corner_radius,
4659 corner_radius * 2.,
4660 layout,
4661 window,
4662 );
4663
4664 if selection.is_local && !selection.range.is_empty() {
4665 invisible_display_ranges.push(selection.range.clone());
4666 }
4667 }
4668 }
4669 invisible_display_ranges
4670 })
4671 }
4672
4673 fn paint_lines(
4674 &mut self,
4675 invisible_display_ranges: &[Range<DisplayPoint>],
4676 layout: &mut EditorLayout,
4677 window: &mut Window,
4678 cx: &mut App,
4679 ) {
4680 let whitespace_setting = self
4681 .editor
4682 .read(cx)
4683 .buffer
4684 .read(cx)
4685 .settings_at(0, cx)
4686 .show_whitespaces;
4687
4688 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4689 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4690 line_with_invisibles.draw(
4691 layout,
4692 row,
4693 layout.content_origin,
4694 whitespace_setting,
4695 invisible_display_ranges,
4696 window,
4697 cx,
4698 )
4699 }
4700
4701 for line_element in &mut layout.line_elements {
4702 line_element.paint(window, cx);
4703 }
4704 }
4705
4706 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4707 if layout.redacted_ranges.is_empty() {
4708 return;
4709 }
4710
4711 let line_end_overshoot = layout.line_end_overshoot();
4712
4713 // A softer than perfect black
4714 let redaction_color = gpui::rgb(0x0e1111);
4715
4716 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4717 for range in layout.redacted_ranges.iter() {
4718 self.paint_highlighted_range(
4719 range.clone(),
4720 redaction_color.into(),
4721 Pixels::ZERO,
4722 line_end_overshoot,
4723 layout,
4724 window,
4725 );
4726 }
4727 });
4728 }
4729
4730 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4731 for cursor in &mut layout.visible_cursors {
4732 cursor.paint(layout.content_origin, window, cx);
4733 }
4734 }
4735
4736 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4737 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4738
4739 if let Some(scrollbar_layout) = scrollbar_x {
4740 let hitbox = scrollbar_layout.hitbox.clone();
4741 let text_unit_size = scrollbar_layout.text_unit_size;
4742 let visible_range = scrollbar_layout.visible_range.clone();
4743 let thumb_bounds = scrollbar_layout.thumb_bounds();
4744
4745 if scrollbar_layout.visible {
4746 window.paint_layer(hitbox.bounds, |window| {
4747 window.paint_quad(quad(
4748 hitbox.bounds,
4749 Corners::default(),
4750 cx.theme().colors().scrollbar_track_background,
4751 Edges {
4752 top: Pixels::ZERO,
4753 right: Pixels::ZERO,
4754 bottom: Pixels::ZERO,
4755 left: Pixels::ZERO,
4756 },
4757 cx.theme().colors().scrollbar_track_border,
4758 ));
4759
4760 window.paint_quad(quad(
4761 thumb_bounds,
4762 Corners::default(),
4763 cx.theme().colors().scrollbar_thumb_background,
4764 Edges {
4765 top: Pixels::ZERO,
4766 right: Pixels::ZERO,
4767 bottom: Pixels::ZERO,
4768 left: ScrollbarLayout::BORDER_WIDTH,
4769 },
4770 cx.theme().colors().scrollbar_thumb_border,
4771 ));
4772 })
4773 }
4774
4775 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4776
4777 window.on_mouse_event({
4778 let editor = self.editor.clone();
4779
4780 // there may be a way to avoid this clone
4781 let hitbox = hitbox.clone();
4782
4783 let mut mouse_position = window.mouse_position();
4784 move |event: &MouseMoveEvent, phase, window, cx| {
4785 if phase == DispatchPhase::Capture {
4786 return;
4787 }
4788
4789 editor.update(cx, |editor, cx| {
4790 if event.pressed_button == Some(MouseButton::Left)
4791 && editor
4792 .scroll_manager
4793 .is_dragging_scrollbar(Axis::Horizontal)
4794 {
4795 let x = mouse_position.x;
4796 let new_x = event.position.x;
4797 if (hitbox.left()..hitbox.right()).contains(&x) {
4798 let mut position = editor.scroll_position(cx);
4799
4800 position.x += (new_x - x) / text_unit_size;
4801 if position.x < 0.0 {
4802 position.x = 0.0;
4803 }
4804 editor.set_scroll_position(position, window, cx);
4805 }
4806
4807 cx.stop_propagation();
4808 } else {
4809 editor.scroll_manager.set_is_dragging_scrollbar(
4810 Axis::Horizontal,
4811 false,
4812 cx,
4813 );
4814
4815 if hitbox.is_hovered(window) {
4816 editor.scroll_manager.show_scrollbar(window, cx);
4817 }
4818 }
4819 mouse_position = event.position;
4820 })
4821 }
4822 });
4823
4824 if self
4825 .editor
4826 .read(cx)
4827 .scroll_manager
4828 .is_dragging_scrollbar(Axis::Horizontal)
4829 {
4830 window.on_mouse_event({
4831 let editor = self.editor.clone();
4832 move |_: &MouseUpEvent, phase, _, cx| {
4833 if phase == DispatchPhase::Capture {
4834 return;
4835 }
4836
4837 editor.update(cx, |editor, cx| {
4838 editor.scroll_manager.set_is_dragging_scrollbar(
4839 Axis::Horizontal,
4840 false,
4841 cx,
4842 );
4843 cx.stop_propagation();
4844 });
4845 }
4846 });
4847 } else {
4848 window.on_mouse_event({
4849 let editor = self.editor.clone();
4850
4851 move |event: &MouseDownEvent, phase, window, cx| {
4852 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4853 return;
4854 }
4855
4856 editor.update(cx, |editor, cx| {
4857 editor.scroll_manager.set_is_dragging_scrollbar(
4858 Axis::Horizontal,
4859 true,
4860 cx,
4861 );
4862
4863 let x = event.position.x;
4864
4865 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4866 let center_row =
4867 ((x - hitbox.left()) / text_unit_size).round() as u32;
4868 let top_row = center_row.saturating_sub(
4869 (visible_range.end - visible_range.start) as u32 / 2,
4870 );
4871
4872 let mut position = editor.scroll_position(cx);
4873 position.x = top_row as f32;
4874
4875 editor.set_scroll_position(position, window, cx);
4876 } else {
4877 editor.scroll_manager.show_scrollbar(window, cx);
4878 }
4879
4880 cx.stop_propagation();
4881 });
4882 }
4883 });
4884 }
4885 }
4886
4887 if let Some(scrollbar_layout) = scrollbar_y {
4888 let hitbox = scrollbar_layout.hitbox.clone();
4889 let text_unit_size = scrollbar_layout.text_unit_size;
4890 let visible_range = scrollbar_layout.visible_range.clone();
4891 let thumb_bounds = scrollbar_layout.thumb_bounds();
4892
4893 if scrollbar_layout.visible {
4894 window.paint_layer(hitbox.bounds, |window| {
4895 window.paint_quad(quad(
4896 hitbox.bounds,
4897 Corners::default(),
4898 cx.theme().colors().scrollbar_track_background,
4899 Edges {
4900 top: Pixels::ZERO,
4901 right: Pixels::ZERO,
4902 bottom: Pixels::ZERO,
4903 left: ScrollbarLayout::BORDER_WIDTH,
4904 },
4905 cx.theme().colors().scrollbar_track_border,
4906 ));
4907
4908 let fast_markers =
4909 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4910 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4911 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4912
4913 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4914 for marker in markers.iter().chain(&fast_markers) {
4915 let mut marker = marker.clone();
4916 marker.bounds.origin += hitbox.origin;
4917 window.paint_quad(marker);
4918 }
4919
4920 window.paint_quad(quad(
4921 thumb_bounds,
4922 Corners::default(),
4923 cx.theme().colors().scrollbar_thumb_background,
4924 Edges {
4925 top: Pixels::ZERO,
4926 right: Pixels::ZERO,
4927 bottom: Pixels::ZERO,
4928 left: ScrollbarLayout::BORDER_WIDTH,
4929 },
4930 cx.theme().colors().scrollbar_thumb_border,
4931 ));
4932 });
4933 }
4934
4935 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4936
4937 window.on_mouse_event({
4938 let editor = self.editor.clone();
4939
4940 let hitbox = hitbox.clone();
4941
4942 let mut mouse_position = window.mouse_position();
4943 move |event: &MouseMoveEvent, phase, window, cx| {
4944 if phase == DispatchPhase::Capture {
4945 return;
4946 }
4947
4948 editor.update(cx, |editor, cx| {
4949 if event.pressed_button == Some(MouseButton::Left)
4950 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4951 {
4952 let y = mouse_position.y;
4953 let new_y = event.position.y;
4954 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4955 let mut position = editor.scroll_position(cx);
4956 position.y += (new_y - y) / text_unit_size;
4957 if position.y < 0.0 {
4958 position.y = 0.0;
4959 }
4960 editor.set_scroll_position(position, window, cx);
4961 }
4962 } else {
4963 editor.scroll_manager.set_is_dragging_scrollbar(
4964 Axis::Vertical,
4965 false,
4966 cx,
4967 );
4968
4969 if hitbox.is_hovered(window) {
4970 editor.scroll_manager.show_scrollbar(window, cx);
4971 }
4972 }
4973 mouse_position = event.position;
4974 })
4975 }
4976 });
4977
4978 if self
4979 .editor
4980 .read(cx)
4981 .scroll_manager
4982 .is_dragging_scrollbar(Axis::Vertical)
4983 {
4984 window.on_mouse_event({
4985 let editor = self.editor.clone();
4986 move |_: &MouseUpEvent, phase, _, cx| {
4987 if phase == DispatchPhase::Capture {
4988 return;
4989 }
4990
4991 editor.update(cx, |editor, cx| {
4992 editor.scroll_manager.set_is_dragging_scrollbar(
4993 Axis::Vertical,
4994 false,
4995 cx,
4996 );
4997 cx.stop_propagation();
4998 });
4999 }
5000 });
5001 } else {
5002 window.on_mouse_event({
5003 let editor = self.editor.clone();
5004
5005 move |event: &MouseDownEvent, phase, window, cx| {
5006 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5007 return;
5008 }
5009
5010 editor.update(cx, |editor, cx| {
5011 editor.scroll_manager.set_is_dragging_scrollbar(
5012 Axis::Vertical,
5013 true,
5014 cx,
5015 );
5016
5017 let y = event.position.y;
5018 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5019 let center_row =
5020 ((y - hitbox.top()) / text_unit_size).round() as u32;
5021 let top_row = center_row.saturating_sub(
5022 (visible_range.end - visible_range.start) as u32 / 2,
5023 );
5024 let mut position = editor.scroll_position(cx);
5025 position.y = top_row as f32;
5026 editor.set_scroll_position(position, window, cx);
5027 } else {
5028 editor.scroll_manager.show_scrollbar(window, cx);
5029 }
5030
5031 cx.stop_propagation();
5032 });
5033 }
5034 });
5035 }
5036 }
5037 }
5038
5039 fn collect_fast_scrollbar_markers(
5040 &self,
5041 layout: &EditorLayout,
5042 scrollbar_layout: &ScrollbarLayout,
5043 cx: &mut App,
5044 ) -> Vec<PaintQuad> {
5045 const LIMIT: usize = 100;
5046 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5047 return vec![];
5048 }
5049 let cursor_ranges = layout
5050 .cursors
5051 .iter()
5052 .map(|(point, color)| ColoredRange {
5053 start: point.row(),
5054 end: point.row(),
5055 color: *color,
5056 })
5057 .collect_vec();
5058 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5059 }
5060
5061 fn refresh_slow_scrollbar_markers(
5062 &self,
5063 layout: &EditorLayout,
5064 scrollbar_layout: &ScrollbarLayout,
5065 window: &mut Window,
5066 cx: &mut App,
5067 ) {
5068 self.editor.update(cx, |editor, cx| {
5069 if !editor.is_singleton(cx)
5070 || !editor
5071 .scrollbar_marker_state
5072 .should_refresh(scrollbar_layout.hitbox.size)
5073 {
5074 return;
5075 }
5076
5077 let scrollbar_layout = scrollbar_layout.clone();
5078 let background_highlights = editor.background_highlights.clone();
5079 let snapshot = layout.position_map.snapshot.clone();
5080 let theme = cx.theme().clone();
5081 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5082
5083 editor.scrollbar_marker_state.dirty = false;
5084 editor.scrollbar_marker_state.pending_refresh =
5085 Some(cx.spawn_in(window, |editor, mut cx| async move {
5086 let scrollbar_size = scrollbar_layout.hitbox.size;
5087 let scrollbar_markers = cx
5088 .background_spawn(async move {
5089 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5090 let mut marker_quads = Vec::new();
5091 if scrollbar_settings.git_diff {
5092 let marker_row_ranges =
5093 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5094 let start_display_row =
5095 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5096 .to_display_point(&snapshot.display_snapshot)
5097 .row();
5098 let mut end_display_row =
5099 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5100 .to_display_point(&snapshot.display_snapshot)
5101 .row();
5102 if end_display_row != start_display_row {
5103 end_display_row.0 -= 1;
5104 }
5105 let color = match &hunk.status().kind {
5106 DiffHunkStatusKind::Added => {
5107 theme.colors().version_control_added
5108 }
5109 DiffHunkStatusKind::Modified => {
5110 theme.colors().version_control_modified
5111 }
5112 DiffHunkStatusKind::Deleted => {
5113 theme.colors().version_control_deleted
5114 }
5115 };
5116 ColoredRange {
5117 start: start_display_row,
5118 end: end_display_row,
5119 color,
5120 }
5121 });
5122
5123 marker_quads.extend(
5124 scrollbar_layout
5125 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5126 );
5127 }
5128
5129 for (background_highlight_id, (_, background_ranges)) in
5130 background_highlights.iter()
5131 {
5132 let is_search_highlights = *background_highlight_id
5133 == TypeId::of::<BufferSearchHighlights>();
5134 let is_text_highlights = *background_highlight_id
5135 == TypeId::of::<SelectedTextHighlight>();
5136 let is_symbol_occurrences = *background_highlight_id
5137 == TypeId::of::<DocumentHighlightRead>()
5138 || *background_highlight_id
5139 == TypeId::of::<DocumentHighlightWrite>();
5140 if (is_search_highlights && scrollbar_settings.search_results)
5141 || (is_text_highlights && scrollbar_settings.selected_text)
5142 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5143 {
5144 let mut color = theme.status().info;
5145 if is_symbol_occurrences {
5146 color.fade_out(0.5);
5147 }
5148 let marker_row_ranges = background_ranges.iter().map(|range| {
5149 let display_start = range
5150 .start
5151 .to_display_point(&snapshot.display_snapshot);
5152 let display_end =
5153 range.end.to_display_point(&snapshot.display_snapshot);
5154 ColoredRange {
5155 start: display_start.row(),
5156 end: display_end.row(),
5157 color,
5158 }
5159 });
5160 marker_quads.extend(
5161 scrollbar_layout
5162 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5163 );
5164 }
5165 }
5166
5167 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5168 let diagnostics = snapshot
5169 .buffer_snapshot
5170 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5171 // Don't show diagnostics the user doesn't care about
5172 .filter(|diagnostic| {
5173 match (
5174 scrollbar_settings.diagnostics,
5175 diagnostic.diagnostic.severity,
5176 ) {
5177 (ScrollbarDiagnostics::All, _) => true,
5178 (
5179 ScrollbarDiagnostics::Error,
5180 DiagnosticSeverity::ERROR,
5181 ) => true,
5182 (
5183 ScrollbarDiagnostics::Warning,
5184 DiagnosticSeverity::ERROR
5185 | DiagnosticSeverity::WARNING,
5186 ) => true,
5187 (
5188 ScrollbarDiagnostics::Information,
5189 DiagnosticSeverity::ERROR
5190 | DiagnosticSeverity::WARNING
5191 | DiagnosticSeverity::INFORMATION,
5192 ) => true,
5193 (_, _) => false,
5194 }
5195 })
5196 // We want to sort by severity, in order to paint the most severe diagnostics last.
5197 .sorted_by_key(|diagnostic| {
5198 std::cmp::Reverse(diagnostic.diagnostic.severity)
5199 });
5200
5201 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5202 let start_display = diagnostic
5203 .range
5204 .start
5205 .to_display_point(&snapshot.display_snapshot);
5206 let end_display = diagnostic
5207 .range
5208 .end
5209 .to_display_point(&snapshot.display_snapshot);
5210 let color = match diagnostic.diagnostic.severity {
5211 DiagnosticSeverity::ERROR => theme.status().error,
5212 DiagnosticSeverity::WARNING => theme.status().warning,
5213 DiagnosticSeverity::INFORMATION => theme.status().info,
5214 _ => theme.status().hint,
5215 };
5216 ColoredRange {
5217 start: start_display.row(),
5218 end: end_display.row(),
5219 color,
5220 }
5221 });
5222 marker_quads.extend(
5223 scrollbar_layout
5224 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5225 );
5226 }
5227
5228 Arc::from(marker_quads)
5229 })
5230 .await;
5231
5232 editor.update(&mut cx, |editor, cx| {
5233 editor.scrollbar_marker_state.markers = scrollbar_markers;
5234 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5235 editor.scrollbar_marker_state.pending_refresh = None;
5236 cx.notify();
5237 })?;
5238
5239 Ok(())
5240 }));
5241 });
5242 }
5243
5244 #[allow(clippy::too_many_arguments)]
5245 fn paint_highlighted_range(
5246 &self,
5247 range: Range<DisplayPoint>,
5248 color: Hsla,
5249 corner_radius: Pixels,
5250 line_end_overshoot: Pixels,
5251 layout: &EditorLayout,
5252 window: &mut Window,
5253 ) {
5254 let start_row = layout.visible_display_row_range.start;
5255 let end_row = layout.visible_display_row_range.end;
5256 if range.start != range.end {
5257 let row_range = if range.end.column() == 0 {
5258 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5259 } else {
5260 cmp::max(range.start.row(), start_row)
5261 ..cmp::min(range.end.row().next_row(), end_row)
5262 };
5263
5264 let highlighted_range = HighlightedRange {
5265 color,
5266 line_height: layout.position_map.line_height,
5267 corner_radius,
5268 start_y: layout.content_origin.y
5269 + row_range.start.as_f32() * layout.position_map.line_height
5270 - layout.position_map.scroll_pixel_position.y,
5271 lines: row_range
5272 .iter_rows()
5273 .map(|row| {
5274 let line_layout =
5275 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5276 HighlightedRangeLine {
5277 start_x: if row == range.start.row() {
5278 layout.content_origin.x
5279 + line_layout.x_for_index(range.start.column() as usize)
5280 - layout.position_map.scroll_pixel_position.x
5281 } else {
5282 layout.content_origin.x
5283 - layout.position_map.scroll_pixel_position.x
5284 },
5285 end_x: if row == range.end.row() {
5286 layout.content_origin.x
5287 + line_layout.x_for_index(range.end.column() as usize)
5288 - layout.position_map.scroll_pixel_position.x
5289 } else {
5290 layout.content_origin.x + line_layout.width + line_end_overshoot
5291 - layout.position_map.scroll_pixel_position.x
5292 },
5293 }
5294 })
5295 .collect(),
5296 };
5297
5298 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5299 }
5300 }
5301
5302 fn paint_inline_diagnostics(
5303 &mut self,
5304 layout: &mut EditorLayout,
5305 window: &mut Window,
5306 cx: &mut App,
5307 ) {
5308 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5309 inline_diagnostic.1.paint(window, cx);
5310 }
5311 }
5312
5313 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5314 if let Some(mut inline_blame) = layout.inline_blame.take() {
5315 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5316 inline_blame.paint(window, cx);
5317 })
5318 }
5319 }
5320
5321 fn paint_diff_hunk_controls(
5322 &mut self,
5323 layout: &mut EditorLayout,
5324 window: &mut Window,
5325 cx: &mut App,
5326 ) {
5327 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5328 diff_hunk_control.paint(window, cx);
5329 }
5330 }
5331
5332 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5333 for mut block in layout.blocks.drain(..) {
5334 block.element.paint(window, cx);
5335 }
5336 }
5337
5338 fn paint_inline_completion_popover(
5339 &mut self,
5340 layout: &mut EditorLayout,
5341 window: &mut Window,
5342 cx: &mut App,
5343 ) {
5344 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5345 inline_completion_popover.paint(window, cx);
5346 }
5347 }
5348
5349 fn paint_mouse_context_menu(
5350 &mut self,
5351 layout: &mut EditorLayout,
5352 window: &mut Window,
5353 cx: &mut App,
5354 ) {
5355 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5356 mouse_context_menu.paint(window, cx);
5357 }
5358 }
5359
5360 fn paint_scroll_wheel_listener(
5361 &mut self,
5362 layout: &EditorLayout,
5363 window: &mut Window,
5364 cx: &mut App,
5365 ) {
5366 window.on_mouse_event({
5367 let position_map = layout.position_map.clone();
5368 let editor = self.editor.clone();
5369 let hitbox = layout.hitbox.clone();
5370 let mut delta = ScrollDelta::default();
5371
5372 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5373 // accidentally turn off their scrolling.
5374 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5375
5376 move |event: &ScrollWheelEvent, phase, window, cx| {
5377 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5378 delta = delta.coalesce(event.delta);
5379 editor.update(cx, |editor, cx| {
5380 let position_map: &PositionMap = &position_map;
5381
5382 let line_height = position_map.line_height;
5383 let max_glyph_width = position_map.em_width;
5384 let (delta, axis) = match delta {
5385 gpui::ScrollDelta::Pixels(mut pixels) => {
5386 //Trackpad
5387 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5388 (pixels, axis)
5389 }
5390
5391 gpui::ScrollDelta::Lines(lines) => {
5392 //Not trackpad
5393 let pixels =
5394 point(lines.x * max_glyph_width, lines.y * line_height);
5395 (pixels, None)
5396 }
5397 };
5398
5399 let current_scroll_position = position_map.snapshot.scroll_position();
5400 let x = (current_scroll_position.x * max_glyph_width
5401 - (delta.x * scroll_sensitivity))
5402 / max_glyph_width;
5403 let y = (current_scroll_position.y * line_height
5404 - (delta.y * scroll_sensitivity))
5405 / line_height;
5406 let mut scroll_position =
5407 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5408 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5409 if forbid_vertical_scroll {
5410 scroll_position.y = current_scroll_position.y;
5411 }
5412
5413 if scroll_position != current_scroll_position {
5414 editor.scroll(scroll_position, axis, window, cx);
5415 cx.stop_propagation();
5416 } else if y < 0. {
5417 // Due to clamping, we may fail to detect cases of overscroll to the top;
5418 // We want the scroll manager to get an update in such cases and detect the change of direction
5419 // on the next frame.
5420 cx.notify();
5421 }
5422 });
5423 }
5424 }
5425 });
5426 }
5427
5428 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5429 self.paint_scroll_wheel_listener(layout, window, cx);
5430
5431 window.on_mouse_event({
5432 let position_map = layout.position_map.clone();
5433 let editor = self.editor.clone();
5434 let diff_hunk_range =
5435 layout
5436 .display_hunks
5437 .iter()
5438 .find_map(|(hunk, hunk_hitbox)| match hunk {
5439 DisplayDiffHunk::Folded { .. } => None,
5440 DisplayDiffHunk::Unfolded {
5441 multi_buffer_range, ..
5442 } => {
5443 if hunk_hitbox
5444 .as_ref()
5445 .map(|hitbox| hitbox.is_hovered(window))
5446 .unwrap_or(false)
5447 {
5448 Some(multi_buffer_range.clone())
5449 } else {
5450 None
5451 }
5452 }
5453 });
5454 let line_numbers = layout.line_numbers.clone();
5455
5456 move |event: &MouseDownEvent, phase, window, cx| {
5457 if phase == DispatchPhase::Bubble {
5458 match event.button {
5459 MouseButton::Left => editor.update(cx, |editor, cx| {
5460 let pending_mouse_down = editor
5461 .pending_mouse_down
5462 .get_or_insert_with(Default::default)
5463 .clone();
5464
5465 *pending_mouse_down.borrow_mut() = Some(event.clone());
5466
5467 Self::mouse_left_down(
5468 editor,
5469 event,
5470 diff_hunk_range.clone(),
5471 &position_map,
5472 line_numbers.as_ref(),
5473 window,
5474 cx,
5475 );
5476 }),
5477 MouseButton::Right => editor.update(cx, |editor, cx| {
5478 Self::mouse_right_down(editor, event, &position_map, window, cx);
5479 }),
5480 MouseButton::Middle => editor.update(cx, |editor, cx| {
5481 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5482 }),
5483 _ => {}
5484 };
5485 }
5486 }
5487 });
5488
5489 window.on_mouse_event({
5490 let editor = self.editor.clone();
5491 let position_map = layout.position_map.clone();
5492
5493 move |event: &MouseUpEvent, phase, window, cx| {
5494 if phase == DispatchPhase::Bubble {
5495 editor.update(cx, |editor, cx| {
5496 Self::mouse_up(editor, event, &position_map, window, cx)
5497 });
5498 }
5499 }
5500 });
5501
5502 window.on_mouse_event({
5503 let editor = self.editor.clone();
5504 let position_map = layout.position_map.clone();
5505 let mut captured_mouse_down = None;
5506
5507 move |event: &MouseUpEvent, phase, window, cx| match phase {
5508 // Clear the pending mouse down during the capture phase,
5509 // so that it happens even if another event handler stops
5510 // propagation.
5511 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5512 let pending_mouse_down = editor
5513 .pending_mouse_down
5514 .get_or_insert_with(Default::default)
5515 .clone();
5516
5517 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5518 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5519 captured_mouse_down = pending_mouse_down.take();
5520 window.refresh();
5521 }
5522 }),
5523 // Fire click handlers during the bubble phase.
5524 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5525 if let Some(mouse_down) = captured_mouse_down.take() {
5526 let event = ClickEvent {
5527 down: mouse_down,
5528 up: event.clone(),
5529 };
5530 Self::click(editor, &event, &position_map, window, cx);
5531 }
5532 }),
5533 }
5534 });
5535
5536 window.on_mouse_event({
5537 let position_map = layout.position_map.clone();
5538 let editor = self.editor.clone();
5539
5540 move |event: &MouseMoveEvent, phase, window, cx| {
5541 if phase == DispatchPhase::Bubble {
5542 editor.update(cx, |editor, cx| {
5543 if editor.hover_state.focused(window, cx) {
5544 return;
5545 }
5546 if event.pressed_button == Some(MouseButton::Left)
5547 || event.pressed_button == Some(MouseButton::Middle)
5548 {
5549 Self::mouse_dragged(editor, event, &position_map, window, cx)
5550 }
5551
5552 Self::mouse_moved(editor, event, &position_map, window, cx)
5553 });
5554 }
5555 }
5556 });
5557 }
5558
5559 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5560 bounds.top_right().x - self.style.scrollbar_width
5561 }
5562
5563 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5564 let style = &self.style;
5565 let font_size = style.text.font_size.to_pixels(window.rem_size());
5566 let layout = window
5567 .text_system()
5568 .shape_line(
5569 SharedString::from(" ".repeat(column)),
5570 font_size,
5571 &[TextRun {
5572 len: column,
5573 font: style.text.font(),
5574 color: Hsla::default(),
5575 background_color: None,
5576 underline: None,
5577 strikethrough: None,
5578 }],
5579 )
5580 .unwrap();
5581
5582 layout.width
5583 }
5584
5585 fn max_line_number_width(
5586 &self,
5587 snapshot: &EditorSnapshot,
5588 window: &mut Window,
5589 cx: &mut App,
5590 ) -> Pixels {
5591 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5592 self.column_pixels(digit_count, window, cx)
5593 }
5594
5595 fn shape_line_number(
5596 &self,
5597 text: SharedString,
5598 color: Hsla,
5599 window: &mut Window,
5600 ) -> anyhow::Result<ShapedLine> {
5601 let run = TextRun {
5602 len: text.len(),
5603 font: self.style.text.font(),
5604 color,
5605 background_color: None,
5606 underline: None,
5607 strikethrough: None,
5608 };
5609 window.text_system().shape_line(
5610 text,
5611 self.style.text.font_size.to_pixels(window.rem_size()),
5612 &[run],
5613 )
5614 }
5615}
5616
5617fn header_jump_data(
5618 snapshot: &EditorSnapshot,
5619 block_row_start: DisplayRow,
5620 height: u32,
5621 for_excerpt: &ExcerptInfo,
5622) -> JumpData {
5623 let range = &for_excerpt.range;
5624 let buffer = &for_excerpt.buffer;
5625 let jump_anchor = range
5626 .primary
5627 .as_ref()
5628 .map_or(range.context.start, |primary| primary.start);
5629
5630 let excerpt_start = range.context.start;
5631 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5632 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5633 0
5634 } else {
5635 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5636 jump_position.row.saturating_sub(excerpt_start_point.row)
5637 };
5638
5639 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5640 .saturating_sub(
5641 snapshot
5642 .scroll_anchor
5643 .scroll_position(&snapshot.display_snapshot)
5644 .y as u32,
5645 );
5646
5647 JumpData::MultiBufferPoint {
5648 excerpt_id: for_excerpt.id,
5649 anchor: jump_anchor,
5650 position: jump_position,
5651 line_offset_from_top,
5652 }
5653}
5654
5655pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5656
5657impl AcceptEditPredictionBinding {
5658 pub fn keystroke(&self) -> Option<&Keystroke> {
5659 if let Some(binding) = self.0.as_ref() {
5660 match &binding.keystrokes() {
5661 [keystroke] => Some(keystroke),
5662 _ => None,
5663 }
5664 } else {
5665 None
5666 }
5667 }
5668}
5669
5670#[allow(clippy::too_many_arguments)]
5671fn prepaint_gutter_button(
5672 button: IconButton,
5673 row: DisplayRow,
5674 line_height: Pixels,
5675 gutter_dimensions: &GutterDimensions,
5676 scroll_pixel_position: gpui::Point<Pixels>,
5677 gutter_hitbox: &Hitbox,
5678 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5679 window: &mut Window,
5680 cx: &mut App,
5681) -> AnyElement {
5682 let mut button = button.into_any_element();
5683 let available_space = size(
5684 AvailableSpace::MinContent,
5685 AvailableSpace::Definite(line_height),
5686 );
5687 let indicator_size = button.layout_as_root(available_space, window, cx);
5688
5689 let blame_width = gutter_dimensions.git_blame_entries_width;
5690 let gutter_width = rows_with_hunk_bounds
5691 .get(&row)
5692 .map(|bounds| bounds.size.width);
5693 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5694
5695 let mut x = left_offset;
5696 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5697 - indicator_size.width
5698 - left_offset;
5699 x += available_width / 2.;
5700
5701 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5702 y += (line_height - indicator_size.height) / 2.;
5703
5704 button.prepaint_as_root(
5705 gutter_hitbox.origin + point(x, y),
5706 available_space,
5707 window,
5708 cx,
5709 );
5710 button
5711}
5712
5713fn render_inline_blame_entry(
5714 editor: Entity<Editor>,
5715 blame: &gpui::Entity<GitBlame>,
5716 blame_entry: BlameEntry,
5717 style: &EditorStyle,
5718 cx: &mut App,
5719) -> AnyElement {
5720 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5721
5722 let author = blame_entry.author.as_deref().unwrap_or_default();
5723 let summary_enabled = ProjectSettings::get_global(cx)
5724 .git
5725 .show_inline_commit_summary();
5726
5727 let text = match blame_entry.summary.as_ref() {
5728 Some(summary) if summary_enabled => {
5729 format!("{}, {} - {}", author, relative_timestamp, summary)
5730 }
5731 _ => format!("{}, {}", author, relative_timestamp),
5732 };
5733 let blame = blame.clone();
5734 let blame_entry = blame_entry.clone();
5735
5736 h_flex()
5737 .id("inline-blame")
5738 .w_full()
5739 .font_family(style.text.font().family)
5740 .text_color(cx.theme().status().hint)
5741 .line_height(style.text.line_height)
5742 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5743 .child(text)
5744 .gap_2()
5745 .hoverable_tooltip(move |window, cx| {
5746 let details = blame.read(cx).details_for_entry(&blame_entry);
5747 let tooltip =
5748 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5749 editor.update(cx, |editor, _| {
5750 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5751 });
5752 tooltip.into()
5753 })
5754 .into_any()
5755}
5756
5757fn render_blame_entry(
5758 ix: usize,
5759 blame: &gpui::Entity<GitBlame>,
5760 blame_entry: BlameEntry,
5761 style: &EditorStyle,
5762 last_used_color: &mut Option<(PlayerColor, Oid)>,
5763 editor: Entity<Editor>,
5764 cx: &mut App,
5765) -> AnyElement {
5766 let mut sha_color = cx
5767 .theme()
5768 .players()
5769 .color_for_participant(blame_entry.sha.into());
5770 // If the last color we used is the same as the one we get for this line, but
5771 // the commit SHAs are different, then we try again to get a different color.
5772 match *last_used_color {
5773 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5774 let index: u32 = blame_entry.sha.into();
5775 sha_color = cx.theme().players().color_for_participant(index + 1);
5776 }
5777 _ => {}
5778 };
5779 last_used_color.replace((sha_color, blame_entry.sha));
5780
5781 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5782
5783 let short_commit_id = blame_entry.sha.display_short();
5784
5785 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5786 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5787 let details = blame.read(cx).details_for_entry(&blame_entry);
5788
5789 h_flex()
5790 .w_full()
5791 .justify_between()
5792 .font_family(style.text.font().family)
5793 .line_height(style.text.line_height)
5794 .id(("blame", ix))
5795 .text_color(cx.theme().status().hint)
5796 .pr_2()
5797 .gap_2()
5798 .child(
5799 h_flex()
5800 .items_center()
5801 .gap_2()
5802 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5803 .child(name),
5804 )
5805 .child(relative_timestamp)
5806 .on_mouse_down(MouseButton::Right, {
5807 let blame_entry = blame_entry.clone();
5808 let details = details.clone();
5809 move |event, window, cx| {
5810 deploy_blame_entry_context_menu(
5811 &blame_entry,
5812 details.as_ref(),
5813 editor.clone(),
5814 event.position,
5815 window,
5816 cx,
5817 );
5818 }
5819 })
5820 .hover(|style| style.bg(cx.theme().colors().element_hover))
5821 .when_some(
5822 details
5823 .as_ref()
5824 .and_then(|details| details.permalink.clone()),
5825 |this, url| {
5826 this.cursor_pointer().on_click(move |_, _, cx| {
5827 cx.stop_propagation();
5828 cx.open_url(url.as_str())
5829 })
5830 },
5831 )
5832 .hoverable_tooltip(move |window, cx| {
5833 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5834 .into()
5835 })
5836 .into_any()
5837}
5838
5839fn deploy_blame_entry_context_menu(
5840 blame_entry: &BlameEntry,
5841 details: Option<&ParsedCommitMessage>,
5842 editor: Entity<Editor>,
5843 position: gpui::Point<Pixels>,
5844 window: &mut Window,
5845 cx: &mut App,
5846) {
5847 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5848 let sha = format!("{}", blame_entry.sha);
5849 menu.on_blur_subscription(Subscription::new(|| {}))
5850 .entry("Copy commit SHA", None, move |_, cx| {
5851 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5852 })
5853 .when_some(
5854 details.and_then(|details| details.permalink.clone()),
5855 |this, url| {
5856 this.entry("Open permalink", None, move |_, cx| {
5857 cx.open_url(url.as_str())
5858 })
5859 },
5860 )
5861 });
5862
5863 editor.update(cx, move |editor, cx| {
5864 editor.mouse_context_menu = Some(MouseContextMenu::new(
5865 MenuPosition::PinnedToScreen(position),
5866 context_menu,
5867 window,
5868 cx,
5869 ));
5870 cx.notify();
5871 });
5872}
5873
5874#[derive(Debug)]
5875pub(crate) struct LineWithInvisibles {
5876 fragments: SmallVec<[LineFragment; 1]>,
5877 invisibles: Vec<Invisible>,
5878 len: usize,
5879 pub(crate) width: Pixels,
5880 font_size: Pixels,
5881}
5882
5883#[allow(clippy::large_enum_variant)]
5884enum LineFragment {
5885 Text(ShapedLine),
5886 Element {
5887 element: Option<AnyElement>,
5888 size: Size<Pixels>,
5889 len: usize,
5890 },
5891}
5892
5893impl fmt::Debug for LineFragment {
5894 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5895 match self {
5896 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5897 LineFragment::Element { size, len, .. } => f
5898 .debug_struct("Element")
5899 .field("size", size)
5900 .field("len", len)
5901 .finish(),
5902 }
5903 }
5904}
5905
5906impl LineWithInvisibles {
5907 #[allow(clippy::too_many_arguments)]
5908 fn from_chunks<'a>(
5909 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5910 editor_style: &EditorStyle,
5911 max_line_len: usize,
5912 max_line_count: usize,
5913 editor_mode: EditorMode,
5914 text_width: Pixels,
5915 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5916 window: &mut Window,
5917 cx: &mut App,
5918 ) -> Vec<Self> {
5919 let text_style = &editor_style.text;
5920 let mut layouts = Vec::with_capacity(max_line_count);
5921 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5922 let mut line = String::new();
5923 let mut invisibles = Vec::new();
5924 let mut width = Pixels::ZERO;
5925 let mut len = 0;
5926 let mut styles = Vec::new();
5927 let mut non_whitespace_added = false;
5928 let mut row = 0;
5929 let mut line_exceeded_max_len = false;
5930 let font_size = text_style.font_size.to_pixels(window.rem_size());
5931
5932 let ellipsis = SharedString::from("⋯");
5933
5934 for highlighted_chunk in chunks.chain([HighlightedChunk {
5935 text: "\n",
5936 style: None,
5937 is_tab: false,
5938 replacement: None,
5939 }]) {
5940 if let Some(replacement) = highlighted_chunk.replacement {
5941 if !line.is_empty() {
5942 let shaped_line = window
5943 .text_system()
5944 .shape_line(line.clone().into(), font_size, &styles)
5945 .unwrap();
5946 width += shaped_line.width;
5947 len += shaped_line.len;
5948 fragments.push(LineFragment::Text(shaped_line));
5949 line.clear();
5950 styles.clear();
5951 }
5952
5953 match replacement {
5954 ChunkReplacement::Renderer(renderer) => {
5955 let available_width = if renderer.constrain_width {
5956 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5957 ellipsis.clone()
5958 } else {
5959 SharedString::from(Arc::from(highlighted_chunk.text))
5960 };
5961 let shaped_line = window
5962 .text_system()
5963 .shape_line(
5964 chunk,
5965 font_size,
5966 &[text_style.to_run(highlighted_chunk.text.len())],
5967 )
5968 .unwrap();
5969 AvailableSpace::Definite(shaped_line.width)
5970 } else {
5971 AvailableSpace::MinContent
5972 };
5973
5974 let mut element = (renderer.render)(&mut ChunkRendererContext {
5975 context: cx,
5976 window,
5977 max_width: text_width,
5978 });
5979 let line_height = text_style.line_height_in_pixels(window.rem_size());
5980 let size = element.layout_as_root(
5981 size(available_width, AvailableSpace::Definite(line_height)),
5982 window,
5983 cx,
5984 );
5985
5986 width += size.width;
5987 len += highlighted_chunk.text.len();
5988 fragments.push(LineFragment::Element {
5989 element: Some(element),
5990 size,
5991 len: highlighted_chunk.text.len(),
5992 });
5993 }
5994 ChunkReplacement::Str(x) => {
5995 let text_style = if let Some(style) = highlighted_chunk.style {
5996 Cow::Owned(text_style.clone().highlight(style))
5997 } else {
5998 Cow::Borrowed(text_style)
5999 };
6000
6001 let run = TextRun {
6002 len: x.len(),
6003 font: text_style.font(),
6004 color: text_style.color,
6005 background_color: text_style.background_color,
6006 underline: text_style.underline,
6007 strikethrough: text_style.strikethrough,
6008 };
6009 let line_layout = window
6010 .text_system()
6011 .shape_line(x, font_size, &[run])
6012 .unwrap()
6013 .with_len(highlighted_chunk.text.len());
6014
6015 width += line_layout.width;
6016 len += highlighted_chunk.text.len();
6017 fragments.push(LineFragment::Text(line_layout))
6018 }
6019 }
6020 } else {
6021 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6022 if ix > 0 {
6023 let shaped_line = window
6024 .text_system()
6025 .shape_line(line.clone().into(), font_size, &styles)
6026 .unwrap();
6027 width += shaped_line.width;
6028 len += shaped_line.len;
6029 fragments.push(LineFragment::Text(shaped_line));
6030 layouts.push(Self {
6031 width: mem::take(&mut width),
6032 len: mem::take(&mut len),
6033 fragments: mem::take(&mut fragments),
6034 invisibles: std::mem::take(&mut invisibles),
6035 font_size,
6036 });
6037
6038 line.clear();
6039 styles.clear();
6040 row += 1;
6041 line_exceeded_max_len = false;
6042 non_whitespace_added = false;
6043 if row == max_line_count {
6044 return layouts;
6045 }
6046 }
6047
6048 if !line_chunk.is_empty() && !line_exceeded_max_len {
6049 let text_style = if let Some(style) = highlighted_chunk.style {
6050 Cow::Owned(text_style.clone().highlight(style))
6051 } else {
6052 Cow::Borrowed(text_style)
6053 };
6054
6055 if line.len() + line_chunk.len() > max_line_len {
6056 let mut chunk_len = max_line_len - line.len();
6057 while !line_chunk.is_char_boundary(chunk_len) {
6058 chunk_len -= 1;
6059 }
6060 line_chunk = &line_chunk[..chunk_len];
6061 line_exceeded_max_len = true;
6062 }
6063
6064 styles.push(TextRun {
6065 len: line_chunk.len(),
6066 font: text_style.font(),
6067 color: text_style.color,
6068 background_color: text_style.background_color,
6069 underline: text_style.underline,
6070 strikethrough: text_style.strikethrough,
6071 });
6072
6073 if editor_mode == EditorMode::Full {
6074 // Line wrap pads its contents with fake whitespaces,
6075 // avoid printing them
6076 let is_soft_wrapped = is_row_soft_wrapped(row);
6077 if highlighted_chunk.is_tab {
6078 if non_whitespace_added || !is_soft_wrapped {
6079 invisibles.push(Invisible::Tab {
6080 line_start_offset: line.len(),
6081 line_end_offset: line.len() + line_chunk.len(),
6082 });
6083 }
6084 } else {
6085 invisibles.extend(line_chunk.char_indices().filter_map(
6086 |(index, c)| {
6087 let is_whitespace = c.is_whitespace();
6088 non_whitespace_added |= !is_whitespace;
6089 if is_whitespace
6090 && (non_whitespace_added || !is_soft_wrapped)
6091 {
6092 Some(Invisible::Whitespace {
6093 line_offset: line.len() + index,
6094 })
6095 } else {
6096 None
6097 }
6098 },
6099 ))
6100 }
6101 }
6102
6103 line.push_str(line_chunk);
6104 }
6105 }
6106 }
6107 }
6108
6109 layouts
6110 }
6111
6112 #[allow(clippy::too_many_arguments)]
6113 fn prepaint(
6114 &mut self,
6115 line_height: Pixels,
6116 scroll_pixel_position: gpui::Point<Pixels>,
6117 row: DisplayRow,
6118 content_origin: gpui::Point<Pixels>,
6119 line_elements: &mut SmallVec<[AnyElement; 1]>,
6120 window: &mut Window,
6121 cx: &mut App,
6122 ) {
6123 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6124 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6125 for fragment in &mut self.fragments {
6126 match fragment {
6127 LineFragment::Text(line) => {
6128 fragment_origin.x += line.width;
6129 }
6130 LineFragment::Element { element, size, .. } => {
6131 let mut element = element
6132 .take()
6133 .expect("you can't prepaint LineWithInvisibles twice");
6134
6135 // Center the element vertically within the line.
6136 let mut element_origin = fragment_origin;
6137 element_origin.y += (line_height - size.height) / 2.;
6138 element.prepaint_at(element_origin, window, cx);
6139 line_elements.push(element);
6140
6141 fragment_origin.x += size.width;
6142 }
6143 }
6144 }
6145 }
6146
6147 #[allow(clippy::too_many_arguments)]
6148 fn draw(
6149 &self,
6150 layout: &EditorLayout,
6151 row: DisplayRow,
6152 content_origin: gpui::Point<Pixels>,
6153 whitespace_setting: ShowWhitespaceSetting,
6154 selection_ranges: &[Range<DisplayPoint>],
6155 window: &mut Window,
6156 cx: &mut App,
6157 ) {
6158 let line_height = layout.position_map.line_height;
6159 let line_y = line_height
6160 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6161
6162 let mut fragment_origin =
6163 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6164
6165 for fragment in &self.fragments {
6166 match fragment {
6167 LineFragment::Text(line) => {
6168 line.paint(fragment_origin, line_height, window, cx)
6169 .log_err();
6170 fragment_origin.x += line.width;
6171 }
6172 LineFragment::Element { size, .. } => {
6173 fragment_origin.x += size.width;
6174 }
6175 }
6176 }
6177
6178 self.draw_invisibles(
6179 selection_ranges,
6180 layout,
6181 content_origin,
6182 line_y,
6183 row,
6184 line_height,
6185 whitespace_setting,
6186 window,
6187 cx,
6188 );
6189 }
6190
6191 #[allow(clippy::too_many_arguments)]
6192 fn draw_invisibles(
6193 &self,
6194 selection_ranges: &[Range<DisplayPoint>],
6195 layout: &EditorLayout,
6196 content_origin: gpui::Point<Pixels>,
6197 line_y: Pixels,
6198 row: DisplayRow,
6199 line_height: Pixels,
6200 whitespace_setting: ShowWhitespaceSetting,
6201 window: &mut Window,
6202 cx: &mut App,
6203 ) {
6204 let extract_whitespace_info = |invisible: &Invisible| {
6205 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6206 Invisible::Tab {
6207 line_start_offset,
6208 line_end_offset,
6209 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6210 Invisible::Whitespace { line_offset } => {
6211 (*line_offset, line_offset + 1, &layout.space_invisible)
6212 }
6213 };
6214
6215 let x_offset = self.x_for_index(token_offset);
6216 let invisible_offset =
6217 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6218 let origin = content_origin
6219 + gpui::point(
6220 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6221 line_y,
6222 );
6223
6224 (
6225 [token_offset, token_end_offset],
6226 Box::new(move |window: &mut Window, cx: &mut App| {
6227 invisible_symbol
6228 .paint(origin, line_height, window, cx)
6229 .log_err();
6230 }),
6231 )
6232 };
6233
6234 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6235 match whitespace_setting {
6236 ShowWhitespaceSetting::None => (),
6237 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6238 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6239 let invisible_point = DisplayPoint::new(row, start as u32);
6240 if !selection_ranges
6241 .iter()
6242 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6243 {
6244 return;
6245 }
6246
6247 paint(window, cx);
6248 }),
6249
6250 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6251 // - It is a tab
6252 // - It is adjacent to an edge (start or end)
6253 // - It is adjacent to a whitespace (left or right)
6254 ShowWhitespaceSetting::Boundary => {
6255 // 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
6256 // the above cases.
6257 // Note: We zip in the original `invisibles` to check for tab equality
6258 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6259 for (([start, end], paint), invisible) in
6260 invisible_iter.zip_eq(self.invisibles.iter())
6261 {
6262 let should_render = match (&last_seen, invisible) {
6263 (_, Invisible::Tab { .. }) => true,
6264 (Some((_, last_end, _)), _) => *last_end == start,
6265 _ => false,
6266 };
6267
6268 if should_render || start == 0 || end == self.len {
6269 paint(window, cx);
6270
6271 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6272 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6273 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6274 // Note that we need to make sure that the last one is actually adjacent
6275 if !should_render_last && last_end == start {
6276 paint_last(window, cx);
6277 }
6278 }
6279 }
6280
6281 // Manually render anything within a selection
6282 let invisible_point = DisplayPoint::new(row, start as u32);
6283 if selection_ranges.iter().any(|region| {
6284 region.start <= invisible_point && invisible_point < region.end
6285 }) {
6286 paint(window, cx);
6287 }
6288
6289 last_seen = Some((should_render, end, paint));
6290 }
6291 }
6292 }
6293 }
6294
6295 pub fn x_for_index(&self, index: usize) -> Pixels {
6296 let mut fragment_start_x = Pixels::ZERO;
6297 let mut fragment_start_index = 0;
6298
6299 for fragment in &self.fragments {
6300 match fragment {
6301 LineFragment::Text(shaped_line) => {
6302 let fragment_end_index = fragment_start_index + shaped_line.len;
6303 if index < fragment_end_index {
6304 return fragment_start_x
6305 + shaped_line.x_for_index(index - fragment_start_index);
6306 }
6307 fragment_start_x += shaped_line.width;
6308 fragment_start_index = fragment_end_index;
6309 }
6310 LineFragment::Element { len, size, .. } => {
6311 let fragment_end_index = fragment_start_index + len;
6312 if index < fragment_end_index {
6313 return fragment_start_x;
6314 }
6315 fragment_start_x += size.width;
6316 fragment_start_index = fragment_end_index;
6317 }
6318 }
6319 }
6320
6321 fragment_start_x
6322 }
6323
6324 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6325 let mut fragment_start_x = Pixels::ZERO;
6326 let mut fragment_start_index = 0;
6327
6328 for fragment in &self.fragments {
6329 match fragment {
6330 LineFragment::Text(shaped_line) => {
6331 let fragment_end_x = fragment_start_x + shaped_line.width;
6332 if x < fragment_end_x {
6333 return Some(
6334 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6335 );
6336 }
6337 fragment_start_x = fragment_end_x;
6338 fragment_start_index += shaped_line.len;
6339 }
6340 LineFragment::Element { len, size, .. } => {
6341 let fragment_end_x = fragment_start_x + size.width;
6342 if x < fragment_end_x {
6343 return Some(fragment_start_index);
6344 }
6345 fragment_start_index += len;
6346 fragment_start_x = fragment_end_x;
6347 }
6348 }
6349 }
6350
6351 None
6352 }
6353
6354 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6355 let mut fragment_start_index = 0;
6356
6357 for fragment in &self.fragments {
6358 match fragment {
6359 LineFragment::Text(shaped_line) => {
6360 let fragment_end_index = fragment_start_index + shaped_line.len;
6361 if index < fragment_end_index {
6362 return shaped_line.font_id_for_index(index - fragment_start_index);
6363 }
6364 fragment_start_index = fragment_end_index;
6365 }
6366 LineFragment::Element { len, .. } => {
6367 let fragment_end_index = fragment_start_index + len;
6368 if index < fragment_end_index {
6369 return None;
6370 }
6371 fragment_start_index = fragment_end_index;
6372 }
6373 }
6374 }
6375
6376 None
6377 }
6378}
6379
6380#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6381enum Invisible {
6382 /// A tab character
6383 ///
6384 /// A tab character is internally represented by spaces (configured by the user's tab width)
6385 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6386 /// adjacency checks.
6387 Tab {
6388 line_start_offset: usize,
6389 line_end_offset: usize,
6390 },
6391 Whitespace {
6392 line_offset: usize,
6393 },
6394}
6395
6396impl EditorElement {
6397 /// Returns the rem size to use when rendering the [`EditorElement`].
6398 ///
6399 /// This allows UI elements to scale based on the `buffer_font_size`.
6400 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6401 match self.editor.read(cx).mode {
6402 EditorMode::Full => {
6403 let buffer_font_size = self.style.text.font_size;
6404 match buffer_font_size {
6405 AbsoluteLength::Pixels(pixels) => {
6406 let rem_size_scale = {
6407 // Our default UI font size is 14px on a 16px base scale.
6408 // This means the default UI font size is 0.875rems.
6409 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6410
6411 // We then determine the delta between a single rem and the default font
6412 // size scale.
6413 let default_font_size_delta = 1. - default_font_size_scale;
6414
6415 // Finally, we add this delta to 1rem to get the scale factor that
6416 // should be used to scale up the UI.
6417 1. + default_font_size_delta
6418 };
6419
6420 Some(pixels * rem_size_scale)
6421 }
6422 AbsoluteLength::Rems(rems) => {
6423 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6424 }
6425 }
6426 }
6427 // We currently use single-line and auto-height editors in UI contexts,
6428 // so we don't want to scale everything with the buffer font size, as it
6429 // ends up looking off.
6430 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6431 }
6432 }
6433}
6434
6435impl Element for EditorElement {
6436 type RequestLayoutState = ();
6437 type PrepaintState = EditorLayout;
6438
6439 fn id(&self) -> Option<ElementId> {
6440 None
6441 }
6442
6443 fn request_layout(
6444 &mut self,
6445 _: Option<&GlobalElementId>,
6446 window: &mut Window,
6447 cx: &mut App,
6448 ) -> (gpui::LayoutId, ()) {
6449 let rem_size = self.rem_size(cx);
6450 window.with_rem_size(rem_size, |window| {
6451 self.editor.update(cx, |editor, cx| {
6452 editor.set_style(self.style.clone(), window, cx);
6453
6454 let layout_id = match editor.mode {
6455 EditorMode::SingleLine { auto_width } => {
6456 let rem_size = window.rem_size();
6457
6458 let height = self.style.text.line_height_in_pixels(rem_size);
6459 if auto_width {
6460 let editor_handle = cx.entity().clone();
6461 let style = self.style.clone();
6462 window.request_measured_layout(
6463 Style::default(),
6464 move |_, _, window, cx| {
6465 let editor_snapshot = editor_handle
6466 .update(cx, |editor, cx| editor.snapshot(window, cx));
6467 let line = Self::layout_lines(
6468 DisplayRow(0)..DisplayRow(1),
6469 &editor_snapshot,
6470 &style,
6471 px(f32::MAX),
6472 |_| false, // Single lines never soft wrap
6473 window,
6474 cx,
6475 )
6476 .pop()
6477 .unwrap();
6478
6479 let font_id =
6480 window.text_system().resolve_font(&style.text.font());
6481 let font_size =
6482 style.text.font_size.to_pixels(window.rem_size());
6483 let em_width =
6484 window.text_system().em_width(font_id, font_size).unwrap();
6485
6486 size(line.width + em_width, height)
6487 },
6488 )
6489 } else {
6490 let mut style = Style::default();
6491 style.size.height = height.into();
6492 style.size.width = relative(1.).into();
6493 window.request_layout(style, None, cx)
6494 }
6495 }
6496 EditorMode::AutoHeight { max_lines } => {
6497 let editor_handle = cx.entity().clone();
6498 let max_line_number_width =
6499 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6500 window.request_measured_layout(
6501 Style::default(),
6502 move |known_dimensions, available_space, window, cx| {
6503 editor_handle
6504 .update(cx, |editor, cx| {
6505 compute_auto_height_layout(
6506 editor,
6507 max_lines,
6508 max_line_number_width,
6509 known_dimensions,
6510 available_space.width,
6511 window,
6512 cx,
6513 )
6514 })
6515 .unwrap_or_default()
6516 },
6517 )
6518 }
6519 EditorMode::Full => {
6520 let mut style = Style::default();
6521 style.size.width = relative(1.).into();
6522 style.size.height = relative(1.).into();
6523 window.request_layout(style, None, cx)
6524 }
6525 };
6526
6527 (layout_id, ())
6528 })
6529 })
6530 }
6531
6532 fn prepaint(
6533 &mut self,
6534 _: Option<&GlobalElementId>,
6535 bounds: Bounds<Pixels>,
6536 _: &mut Self::RequestLayoutState,
6537 window: &mut Window,
6538 cx: &mut App,
6539 ) -> Self::PrepaintState {
6540 let text_style = TextStyleRefinement {
6541 font_size: Some(self.style.text.font_size),
6542 line_height: Some(self.style.text.line_height),
6543 ..Default::default()
6544 };
6545 let focus_handle = self.editor.focus_handle(cx);
6546 window.set_view_id(self.editor.entity_id());
6547 window.set_focus_handle(&focus_handle, cx);
6548
6549 let rem_size = self.rem_size(cx);
6550 window.with_rem_size(rem_size, |window| {
6551 window.with_text_style(Some(text_style), |window| {
6552 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6553 let mut snapshot = self
6554 .editor
6555 .update(cx, |editor, cx| editor.snapshot(window, cx));
6556 let style = self.style.clone();
6557
6558 let font_id = window.text_system().resolve_font(&style.text.font());
6559 let font_size = style.text.font_size.to_pixels(window.rem_size());
6560 let line_height = style.text.line_height_in_pixels(window.rem_size());
6561 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6562 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6563
6564 let letter_size = size(em_width, line_height);
6565
6566 let gutter_dimensions = snapshot
6567 .gutter_dimensions(
6568 font_id,
6569 font_size,
6570 self.max_line_number_width(&snapshot, window, cx),
6571 cx,
6572 )
6573 .unwrap_or_default();
6574 let text_width = bounds.size.width - gutter_dimensions.width;
6575
6576 let editor_width =
6577 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6578
6579 snapshot = self.editor.update(cx, |editor, cx| {
6580 editor.last_bounds = Some(bounds);
6581 editor.gutter_dimensions = gutter_dimensions;
6582 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6583
6584 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6585 snapshot
6586 } else {
6587 let wrap_width = match editor.soft_wrap_mode(cx) {
6588 SoftWrap::GitDiff => None,
6589 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6590 SoftWrap::EditorWidth => Some(editor_width),
6591 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6592 SoftWrap::Bounded(column) => {
6593 Some(editor_width.min(column as f32 * em_advance))
6594 }
6595 };
6596
6597 if editor.set_wrap_width(wrap_width, cx) {
6598 editor.snapshot(window, cx)
6599 } else {
6600 snapshot
6601 }
6602 }
6603 });
6604
6605 let wrap_guides = self
6606 .editor
6607 .read(cx)
6608 .wrap_guides(cx)
6609 .iter()
6610 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6611 .collect::<SmallVec<[_; 2]>>();
6612
6613 let hitbox = window.insert_hitbox(bounds, false);
6614 let gutter_hitbox =
6615 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6616 let text_hitbox = window.insert_hitbox(
6617 Bounds {
6618 origin: gutter_hitbox.top_right(),
6619 size: size(text_width, bounds.size.height),
6620 },
6621 false,
6622 );
6623 // Offset the content_bounds from the text_bounds by the gutter margin (which
6624 // is roughly half a character wide) to make hit testing work more like how we want.
6625 let content_origin =
6626 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6627
6628 let scrollbar_bounds =
6629 Bounds::from_corners(content_origin, bounds.bottom_right());
6630
6631 let height_in_lines = scrollbar_bounds.size.height / line_height;
6632
6633 // NOTE: The max row number in the current file, minus one
6634 let max_row = snapshot.max_point().row().as_f32();
6635
6636 // NOTE: The max scroll position for the top of the window
6637 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6638 (max_row - height_in_lines + 1.).max(0.)
6639 } else {
6640 let settings = EditorSettings::get_global(cx);
6641 match settings.scroll_beyond_last_line {
6642 ScrollBeyondLastLine::OnePage => max_row,
6643 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6644 ScrollBeyondLastLine::VerticalScrollMargin => {
6645 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6646 .max(0.)
6647 }
6648 }
6649 };
6650
6651 // TODO: Autoscrolling for both axes
6652 let mut autoscroll_request = None;
6653 let mut autoscroll_containing_element = false;
6654 let mut autoscroll_horizontally = false;
6655 self.editor.update(cx, |editor, cx| {
6656 autoscroll_request = editor.autoscroll_request();
6657 autoscroll_containing_element =
6658 autoscroll_request.is_some() || editor.has_pending_selection();
6659 // TODO: Is this horizontal or vertical?!
6660 autoscroll_horizontally = editor.autoscroll_vertically(
6661 bounds,
6662 line_height,
6663 max_scroll_top,
6664 window,
6665 cx,
6666 );
6667 snapshot = editor.snapshot(window, cx);
6668 });
6669
6670 let mut scroll_position = snapshot.scroll_position();
6671 // The scroll position is a fractional point, the whole number of which represents
6672 // the top of the window in terms of display rows.
6673 let start_row = DisplayRow(scroll_position.y as u32);
6674 let max_row = snapshot.max_point().row();
6675 let end_row = cmp::min(
6676 (scroll_position.y + height_in_lines).ceil() as u32,
6677 max_row.next_row().0,
6678 );
6679 let end_row = DisplayRow(end_row);
6680
6681 let row_infos = snapshot
6682 .row_infos(start_row)
6683 .take((start_row..end_row).len())
6684 .collect::<Vec<RowInfo>>();
6685 let is_row_soft_wrapped = |row: usize| {
6686 row_infos
6687 .get(row)
6688 .map_or(true, |info| info.buffer_row.is_none())
6689 };
6690
6691 let start_anchor = if start_row == Default::default() {
6692 Anchor::min()
6693 } else {
6694 snapshot.buffer_snapshot.anchor_before(
6695 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6696 )
6697 };
6698 let end_anchor = if end_row > max_row {
6699 Anchor::max()
6700 } else {
6701 snapshot.buffer_snapshot.anchor_before(
6702 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6703 )
6704 };
6705
6706 let mut highlighted_rows = self
6707 .editor
6708 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6709
6710 let is_light = cx.theme().appearance().is_light();
6711
6712 for (ix, row_info) in row_infos.iter().enumerate() {
6713 let Some(diff_status) = row_info.diff_status else {
6714 continue;
6715 };
6716
6717 let staged_opacity = if is_light { 0.14 } else { 0.10 };
6718 let unstaged_opacity = 0.04;
6719
6720 let background_color = match diff_status.kind {
6721 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6722 DiffHunkStatusKind::Deleted => {
6723 cx.theme().colors().version_control_deleted
6724 }
6725 DiffHunkStatusKind::Modified => {
6726 debug_panic!("modified diff status for row info");
6727 continue;
6728 }
6729 };
6730 let background_color = if diff_status.has_secondary_hunk() {
6731 background_color.opacity(unstaged_opacity)
6732 } else {
6733 background_color.opacity(staged_opacity)
6734 };
6735
6736 highlighted_rows
6737 .entry(start_row + DisplayRow(ix as u32))
6738 .or_insert(background_color.into());
6739 }
6740
6741 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6742 start_anchor..end_anchor,
6743 &snapshot.display_snapshot,
6744 cx.theme().colors(),
6745 );
6746 let highlighted_gutter_ranges =
6747 self.editor.read(cx).gutter_highlights_in_range(
6748 start_anchor..end_anchor,
6749 &snapshot.display_snapshot,
6750 cx,
6751 );
6752
6753 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6754 start_anchor..end_anchor,
6755 &snapshot.display_snapshot,
6756 cx,
6757 );
6758
6759 let (local_selections, selected_buffer_ids): (
6760 Vec<Selection<Point>>,
6761 Vec<BufferId>,
6762 ) = self.editor.update(cx, |editor, cx| {
6763 let all_selections = editor.selections.all::<Point>(cx);
6764 let selected_buffer_ids = if editor.is_singleton(cx) {
6765 Vec::new()
6766 } else {
6767 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6768
6769 for selection in all_selections {
6770 for buffer_id in snapshot
6771 .buffer_snapshot
6772 .buffer_ids_for_range(selection.range())
6773 {
6774 if selected_buffer_ids.last() != Some(&buffer_id) {
6775 selected_buffer_ids.push(buffer_id);
6776 }
6777 }
6778 }
6779
6780 selected_buffer_ids
6781 };
6782
6783 let mut selections = editor
6784 .selections
6785 .disjoint_in_range(start_anchor..end_anchor, cx);
6786 selections.extend(editor.selections.pending(cx));
6787
6788 (selections, selected_buffer_ids)
6789 });
6790
6791 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6792 start_anchor,
6793 end_anchor,
6794 &local_selections,
6795 &snapshot,
6796 start_row,
6797 end_row,
6798 window,
6799 cx,
6800 );
6801
6802 let line_numbers = self.layout_line_numbers(
6803 Some(&gutter_hitbox),
6804 gutter_dimensions,
6805 line_height,
6806 scroll_position,
6807 start_row..end_row,
6808 &row_infos,
6809 newest_selection_head,
6810 &snapshot,
6811 window,
6812 cx,
6813 );
6814
6815 let mut crease_toggles =
6816 window.with_element_namespace("crease_toggles", |window| {
6817 self.layout_crease_toggles(
6818 start_row..end_row,
6819 &row_infos,
6820 &active_rows,
6821 &snapshot,
6822 window,
6823 cx,
6824 )
6825 });
6826 let crease_trailers =
6827 window.with_element_namespace("crease_trailers", |window| {
6828 self.layout_crease_trailers(
6829 row_infos.iter().copied(),
6830 &snapshot,
6831 window,
6832 cx,
6833 )
6834 });
6835
6836 let display_hunks = self.layout_gutter_diff_hunks(
6837 line_height,
6838 &gutter_hitbox,
6839 start_row..end_row,
6840 &snapshot,
6841 window,
6842 cx,
6843 );
6844
6845 let mut line_layouts = Self::layout_lines(
6846 start_row..end_row,
6847 &snapshot,
6848 &self.style,
6849 editor_width,
6850 is_row_soft_wrapped,
6851 window,
6852 cx,
6853 );
6854
6855 let longest_line_blame_width = self
6856 .editor
6857 .update(cx, |editor, cx| {
6858 if !editor.show_git_blame_inline {
6859 return None;
6860 }
6861 let blame = editor.blame.as_ref()?;
6862 let blame_entry = blame
6863 .update(cx, |blame, cx| {
6864 let row_infos =
6865 snapshot.row_infos(snapshot.longest_row()).next()?;
6866 blame.blame_for_rows(&[row_infos], cx).next()
6867 })
6868 .flatten()?;
6869 let mut element = render_inline_blame_entry(
6870 self.editor.clone(),
6871 blame,
6872 blame_entry,
6873 &style,
6874 cx,
6875 );
6876 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6877 Some(
6878 element
6879 .layout_as_root(AvailableSpace::min_size(), window, cx)
6880 .width
6881 + inline_blame_padding,
6882 )
6883 })
6884 .unwrap_or(Pixels::ZERO);
6885
6886 let longest_line_width = layout_line(
6887 snapshot.longest_row(),
6888 &snapshot,
6889 &style,
6890 editor_width,
6891 is_row_soft_wrapped,
6892 window,
6893 cx,
6894 )
6895 .width;
6896
6897 let scrollbar_range_data = ScrollbarRangeData::new(
6898 scrollbar_bounds,
6899 letter_size,
6900 &snapshot,
6901 longest_line_width,
6902 longest_line_blame_width,
6903 &style,
6904 editor_width,
6905 cx,
6906 );
6907
6908 let scroll_range_bounds = scrollbar_range_data.scroll_range;
6909 let mut scroll_width = scroll_range_bounds.size.width;
6910
6911 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6912 snapshot.sticky_header_excerpt(start_row)
6913 } else {
6914 None
6915 };
6916 let sticky_header_excerpt_id =
6917 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6918
6919 let blocks = window.with_element_namespace("blocks", |window| {
6920 self.render_blocks(
6921 start_row..end_row,
6922 &snapshot,
6923 &hitbox,
6924 &text_hitbox,
6925 editor_width,
6926 &mut scroll_width,
6927 &gutter_dimensions,
6928 em_width,
6929 gutter_dimensions.full_width(),
6930 line_height,
6931 &line_layouts,
6932 &local_selections,
6933 &selected_buffer_ids,
6934 is_row_soft_wrapped,
6935 sticky_header_excerpt_id,
6936 window,
6937 cx,
6938 )
6939 });
6940 let mut blocks = match blocks {
6941 Ok(blocks) => blocks,
6942 Err(resized_blocks) => {
6943 self.editor.update(cx, |editor, cx| {
6944 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6945 });
6946 return self.prepaint(None, bounds, &mut (), window, cx);
6947 }
6948 };
6949
6950 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
6951 window.with_element_namespace("blocks", |window| {
6952 self.layout_sticky_buffer_header(
6953 sticky_header_excerpt,
6954 scroll_position.y,
6955 line_height,
6956 &snapshot,
6957 &hitbox,
6958 &selected_buffer_ids,
6959 window,
6960 cx,
6961 )
6962 })
6963 });
6964
6965 let start_buffer_row =
6966 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
6967 let end_buffer_row =
6968 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
6969
6970 let scroll_max = point(
6971 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
6972 max_row.as_f32(),
6973 );
6974
6975 self.editor.update(cx, |editor, cx| {
6976 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
6977
6978 let autoscrolled = if autoscroll_horizontally {
6979 editor.autoscroll_horizontally(
6980 start_row,
6981 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
6982 scroll_width,
6983 em_width,
6984 &line_layouts,
6985 cx,
6986 )
6987 } else {
6988 false
6989 };
6990
6991 if clamped || autoscrolled {
6992 snapshot = editor.snapshot(window, cx);
6993 scroll_position = snapshot.scroll_position();
6994 }
6995 });
6996
6997 let scroll_pixel_position = point(
6998 scroll_position.x * em_width,
6999 scroll_position.y * line_height,
7000 );
7001
7002 let indent_guides = self.layout_indent_guides(
7003 content_origin,
7004 text_hitbox.origin,
7005 start_buffer_row..end_buffer_row,
7006 scroll_pixel_position,
7007 line_height,
7008 &snapshot,
7009 window,
7010 cx,
7011 );
7012
7013 let crease_trailers =
7014 window.with_element_namespace("crease_trailers", |window| {
7015 self.prepaint_crease_trailers(
7016 crease_trailers,
7017 &line_layouts,
7018 line_height,
7019 content_origin,
7020 scroll_pixel_position,
7021 em_width,
7022 window,
7023 cx,
7024 )
7025 });
7026
7027 let (inline_completion_popover, inline_completion_popover_origin) = self
7028 .editor
7029 .update(cx, |editor, cx| {
7030 editor.render_edit_prediction_popover(
7031 &text_hitbox.bounds,
7032 content_origin,
7033 &snapshot,
7034 start_row..end_row,
7035 scroll_position.y,
7036 scroll_position.y + height_in_lines,
7037 &line_layouts,
7038 line_height,
7039 scroll_pixel_position,
7040 newest_selection_head,
7041 editor_width,
7042 &style,
7043 window,
7044 cx,
7045 )
7046 })
7047 .unzip();
7048
7049 let mut inline_diagnostics = self.layout_inline_diagnostics(
7050 &line_layouts,
7051 &crease_trailers,
7052 content_origin,
7053 scroll_pixel_position,
7054 inline_completion_popover_origin,
7055 start_row,
7056 end_row,
7057 line_height,
7058 em_width,
7059 &style,
7060 window,
7061 cx,
7062 );
7063
7064 let mut inline_blame = None;
7065 if let Some(newest_selection_head) = newest_selection_head {
7066 let display_row = newest_selection_head.row();
7067 if (start_row..end_row).contains(&display_row) {
7068 let line_ix = display_row.minus(start_row) as usize;
7069 let row_info = &row_infos[line_ix];
7070 let line_layout = &line_layouts[line_ix];
7071 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7072 inline_blame = self.layout_inline_blame(
7073 display_row,
7074 row_info,
7075 line_layout,
7076 crease_trailer_layout,
7077 em_width,
7078 content_origin,
7079 scroll_pixel_position,
7080 line_height,
7081 window,
7082 cx,
7083 );
7084 if inline_blame.is_some() {
7085 // Blame overrides inline diagnostics
7086 inline_diagnostics.remove(&display_row);
7087 }
7088 }
7089 }
7090
7091 let blamed_display_rows = self.layout_blame_entries(
7092 &row_infos,
7093 em_width,
7094 scroll_position,
7095 line_height,
7096 &gutter_hitbox,
7097 gutter_dimensions.git_blame_entries_width,
7098 window,
7099 cx,
7100 );
7101
7102 let scroll_max = point(
7103 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7104 max_scroll_top,
7105 );
7106
7107 self.editor.update(cx, |editor, cx| {
7108 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7109
7110 let autoscrolled = if autoscroll_horizontally {
7111 editor.autoscroll_horizontally(
7112 start_row,
7113 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7114 scroll_width,
7115 em_width,
7116 &line_layouts,
7117 cx,
7118 )
7119 } else {
7120 false
7121 };
7122
7123 if clamped || autoscrolled {
7124 snapshot = editor.snapshot(window, cx);
7125 scroll_position = snapshot.scroll_position();
7126 }
7127 });
7128
7129 let line_elements = self.prepaint_lines(
7130 start_row,
7131 &mut line_layouts,
7132 line_height,
7133 scroll_pixel_position,
7134 content_origin,
7135 window,
7136 cx,
7137 );
7138
7139 let mut block_start_rows = HashSet::default();
7140
7141 window.with_element_namespace("blocks", |window| {
7142 self.layout_blocks(
7143 &mut blocks,
7144 &mut block_start_rows,
7145 &hitbox,
7146 line_height,
7147 scroll_pixel_position,
7148 window,
7149 cx,
7150 );
7151 });
7152
7153 let cursors = self.collect_cursors(&snapshot, cx);
7154 let visible_row_range = start_row..end_row;
7155 let non_visible_cursors = cursors
7156 .iter()
7157 .any(|c| !visible_row_range.contains(&c.0.row()));
7158
7159 let visible_cursors = self.layout_visible_cursors(
7160 &snapshot,
7161 &selections,
7162 &block_start_rows,
7163 start_row..end_row,
7164 &line_layouts,
7165 &text_hitbox,
7166 content_origin,
7167 scroll_position,
7168 scroll_pixel_position,
7169 line_height,
7170 em_width,
7171 em_advance,
7172 autoscroll_containing_element,
7173 window,
7174 cx,
7175 );
7176
7177 let scrollbars_layout = self.layout_scrollbars(
7178 &snapshot,
7179 scrollbar_range_data,
7180 scroll_position,
7181 non_visible_cursors,
7182 window,
7183 cx,
7184 );
7185
7186 let gutter_settings = EditorSettings::get_global(cx).gutter;
7187
7188 let rows_with_hunk_bounds = display_hunks
7189 .iter()
7190 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7191 .fold(
7192 HashMap::default(),
7193 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7194 match hunk {
7195 DisplayDiffHunk::Folded { display_row } => {
7196 rows_with_hunk_bounds.insert(*display_row, bounds);
7197 }
7198 DisplayDiffHunk::Unfolded {
7199 display_row_range, ..
7200 } => {
7201 for display_row in display_row_range.iter_rows() {
7202 rows_with_hunk_bounds.insert(display_row, bounds);
7203 }
7204 }
7205 }
7206 rows_with_hunk_bounds
7207 },
7208 );
7209 let mut code_actions_indicator = None;
7210 if let Some(newest_selection_head) = newest_selection_head {
7211 let newest_selection_point =
7212 newest_selection_head.to_point(&snapshot.display_snapshot);
7213
7214 if (start_row..end_row).contains(&newest_selection_head.row()) {
7215 self.layout_cursor_popovers(
7216 line_height,
7217 &text_hitbox,
7218 content_origin,
7219 start_row,
7220 scroll_pixel_position,
7221 &line_layouts,
7222 newest_selection_head,
7223 newest_selection_point,
7224 &style,
7225 window,
7226 cx,
7227 );
7228
7229 let show_code_actions = snapshot
7230 .show_code_actions
7231 .unwrap_or(gutter_settings.code_actions);
7232 if show_code_actions {
7233 let newest_selection_point =
7234 newest_selection_head.to_point(&snapshot.display_snapshot);
7235 if !snapshot
7236 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7237 {
7238 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7239 MultiBufferRow(newest_selection_point.row),
7240 );
7241 if let Some((buffer, range)) = buffer {
7242 let buffer_id = buffer.remote_id();
7243 let row = range.start.row;
7244 let has_test_indicator = self
7245 .editor
7246 .read(cx)
7247 .tasks
7248 .contains_key(&(buffer_id, row));
7249
7250 if !has_test_indicator {
7251 code_actions_indicator = self
7252 .layout_code_actions_indicator(
7253 line_height,
7254 newest_selection_head,
7255 scroll_pixel_position,
7256 &gutter_dimensions,
7257 &gutter_hitbox,
7258 &rows_with_hunk_bounds,
7259 window,
7260 cx,
7261 );
7262 }
7263 }
7264 }
7265 }
7266 }
7267 }
7268
7269 self.layout_gutter_menu(
7270 line_height,
7271 &text_hitbox,
7272 content_origin,
7273 scroll_pixel_position,
7274 gutter_dimensions.width - gutter_dimensions.left_padding,
7275 window,
7276 cx,
7277 );
7278
7279 let test_indicators = if gutter_settings.runnables {
7280 self.layout_run_indicators(
7281 line_height,
7282 start_row..end_row,
7283 scroll_pixel_position,
7284 &gutter_dimensions,
7285 &gutter_hitbox,
7286 &rows_with_hunk_bounds,
7287 &snapshot,
7288 window,
7289 cx,
7290 )
7291 } else {
7292 Vec::new()
7293 };
7294
7295 self.layout_signature_help(
7296 &hitbox,
7297 content_origin,
7298 scroll_pixel_position,
7299 newest_selection_head,
7300 start_row,
7301 &line_layouts,
7302 line_height,
7303 em_width,
7304 window,
7305 cx,
7306 );
7307
7308 if !cx.has_active_drag() {
7309 self.layout_hover_popovers(
7310 &snapshot,
7311 &hitbox,
7312 &text_hitbox,
7313 start_row..end_row,
7314 content_origin,
7315 scroll_pixel_position,
7316 &line_layouts,
7317 line_height,
7318 em_width,
7319 window,
7320 cx,
7321 );
7322 }
7323
7324 let mouse_context_menu = self.layout_mouse_context_menu(
7325 &snapshot,
7326 start_row..end_row,
7327 content_origin,
7328 window,
7329 cx,
7330 );
7331
7332 window.with_element_namespace("crease_toggles", |window| {
7333 self.prepaint_crease_toggles(
7334 &mut crease_toggles,
7335 line_height,
7336 &gutter_dimensions,
7337 gutter_settings,
7338 scroll_pixel_position,
7339 &gutter_hitbox,
7340 window,
7341 cx,
7342 )
7343 });
7344
7345 let invisible_symbol_font_size = font_size / 2.;
7346 let tab_invisible = window
7347 .text_system()
7348 .shape_line(
7349 "→".into(),
7350 invisible_symbol_font_size,
7351 &[TextRun {
7352 len: "→".len(),
7353 font: self.style.text.font(),
7354 color: cx.theme().colors().editor_invisible,
7355 background_color: None,
7356 underline: None,
7357 strikethrough: None,
7358 }],
7359 )
7360 .unwrap();
7361 let space_invisible = window
7362 .text_system()
7363 .shape_line(
7364 "•".into(),
7365 invisible_symbol_font_size,
7366 &[TextRun {
7367 len: "•".len(),
7368 font: self.style.text.font(),
7369 color: cx.theme().colors().editor_invisible,
7370 background_color: None,
7371 underline: None,
7372 strikethrough: None,
7373 }],
7374 )
7375 .unwrap();
7376
7377 let mode = snapshot.mode;
7378
7379 let position_map = Rc::new(PositionMap {
7380 size: bounds.size,
7381 visible_row_range,
7382 scroll_pixel_position,
7383 scroll_max,
7384 line_layouts,
7385 line_height,
7386 em_width,
7387 em_advance,
7388 snapshot,
7389 gutter_hitbox: gutter_hitbox.clone(),
7390 text_hitbox: text_hitbox.clone(),
7391 });
7392
7393 self.editor.update(cx, |editor, _| {
7394 editor.last_position_map = Some(position_map.clone())
7395 });
7396
7397 let diff_hunk_controls = self.layout_diff_hunk_controls(
7398 start_row..end_row,
7399 &row_infos,
7400 &text_hitbox,
7401 &position_map,
7402 newest_selection_head,
7403 line_height,
7404 scroll_pixel_position,
7405 &display_hunks,
7406 self.editor.clone(),
7407 window,
7408 cx,
7409 );
7410
7411 EditorLayout {
7412 mode,
7413 position_map,
7414 visible_display_row_range: start_row..end_row,
7415 wrap_guides,
7416 indent_guides,
7417 hitbox,
7418 gutter_hitbox,
7419 display_hunks,
7420 content_origin,
7421 scrollbars_layout,
7422 active_rows,
7423 highlighted_rows,
7424 highlighted_ranges,
7425 highlighted_gutter_ranges,
7426 redacted_ranges,
7427 line_elements,
7428 line_numbers,
7429 blamed_display_rows,
7430 inline_diagnostics,
7431 inline_blame,
7432 blocks,
7433 cursors,
7434 visible_cursors,
7435 selections,
7436 inline_completion_popover,
7437 diff_hunk_controls,
7438 mouse_context_menu,
7439 test_indicators,
7440 code_actions_indicator,
7441 crease_toggles,
7442 crease_trailers,
7443 tab_invisible,
7444 space_invisible,
7445 sticky_buffer_header,
7446 }
7447 })
7448 })
7449 })
7450 }
7451
7452 fn paint(
7453 &mut self,
7454 _: Option<&GlobalElementId>,
7455 bounds: Bounds<gpui::Pixels>,
7456 _: &mut Self::RequestLayoutState,
7457 layout: &mut Self::PrepaintState,
7458 window: &mut Window,
7459 cx: &mut App,
7460 ) {
7461 let focus_handle = self.editor.focus_handle(cx);
7462 let key_context = self
7463 .editor
7464 .update(cx, |editor, cx| editor.key_context(window, cx));
7465
7466 window.set_key_context(key_context);
7467 window.handle_input(
7468 &focus_handle,
7469 ElementInputHandler::new(bounds, self.editor.clone()),
7470 cx,
7471 );
7472 self.register_actions(window, cx);
7473 self.register_key_listeners(window, cx, layout);
7474
7475 let text_style = TextStyleRefinement {
7476 font_size: Some(self.style.text.font_size),
7477 line_height: Some(self.style.text.line_height),
7478 ..Default::default()
7479 };
7480 let rem_size = self.rem_size(cx);
7481 window.with_rem_size(rem_size, |window| {
7482 window.with_text_style(Some(text_style), |window| {
7483 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7484 self.paint_mouse_listeners(layout, window, cx);
7485 self.paint_background(layout, window, cx);
7486 self.paint_indent_guides(layout, window, cx);
7487
7488 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7489 self.paint_blamed_display_rows(layout, window, cx);
7490 self.paint_line_numbers(layout, window, cx);
7491 }
7492
7493 self.paint_text(layout, window, cx);
7494
7495 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7496 self.paint_gutter_highlights(layout, window, cx);
7497 self.paint_gutter_indicators(layout, window, cx);
7498 }
7499
7500 if !layout.blocks.is_empty() {
7501 window.with_element_namespace("blocks", |window| {
7502 self.paint_blocks(layout, window, cx);
7503 });
7504 }
7505
7506 window.with_element_namespace("blocks", |window| {
7507 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7508 sticky_header.paint(window, cx)
7509 }
7510 });
7511
7512 self.paint_scrollbars(layout, window, cx);
7513 self.paint_inline_completion_popover(layout, window, cx);
7514 self.paint_mouse_context_menu(layout, window, cx);
7515 });
7516 })
7517 })
7518 }
7519}
7520
7521pub(super) fn gutter_bounds(
7522 editor_bounds: Bounds<Pixels>,
7523 gutter_dimensions: GutterDimensions,
7524) -> Bounds<Pixels> {
7525 Bounds {
7526 origin: editor_bounds.origin,
7527 size: size(gutter_dimensions.width, editor_bounds.size.height),
7528 }
7529}
7530
7531struct ScrollbarRangeData {
7532 scrollbar_bounds: Bounds<Pixels>,
7533 scroll_range: Bounds<Pixels>,
7534 letter_size: Size<Pixels>,
7535}
7536
7537impl ScrollbarRangeData {
7538 #[allow(clippy::too_many_arguments)]
7539 pub fn new(
7540 scrollbar_bounds: Bounds<Pixels>,
7541 letter_size: Size<Pixels>,
7542 snapshot: &EditorSnapshot,
7543 longest_line_width: Pixels,
7544 longest_line_blame_width: Pixels,
7545 style: &EditorStyle,
7546 editor_width: Pixels,
7547 cx: &mut App,
7548 ) -> ScrollbarRangeData {
7549 // TODO: Simplify this function down, it requires a lot of parameters
7550 let max_row = snapshot.max_point().row();
7551 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7552
7553 let settings = EditorSettings::get_global(cx);
7554 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7555 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7556 ScrollBeyondLastLine::Off => px(1.),
7557 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7558 };
7559
7560 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7561 letter_size.width + style.scrollbar_width
7562 } else {
7563 px(0.0)
7564 };
7565
7566 let overscroll = size(
7567 right_margin + longest_line_blame_width,
7568 letter_size.height * scroll_beyond_last_line,
7569 );
7570
7571 let scroll_range = Bounds {
7572 origin: scrollbar_bounds.origin,
7573 size: text_bounds_size + overscroll,
7574 };
7575
7576 ScrollbarRangeData {
7577 scrollbar_bounds,
7578 scroll_range,
7579 letter_size,
7580 }
7581 }
7582}
7583
7584impl IntoElement for EditorElement {
7585 type Element = Self;
7586
7587 fn into_element(self) -> Self::Element {
7588 self
7589 }
7590}
7591
7592pub struct EditorLayout {
7593 position_map: Rc<PositionMap>,
7594 hitbox: Hitbox,
7595 gutter_hitbox: Hitbox,
7596 content_origin: gpui::Point<Pixels>,
7597 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7598 mode: EditorMode,
7599 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7600 indent_guides: Option<Vec<IndentGuideLayout>>,
7601 visible_display_row_range: Range<DisplayRow>,
7602 active_rows: BTreeMap<DisplayRow, bool>,
7603 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7604 line_elements: SmallVec<[AnyElement; 1]>,
7605 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7606 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7607 blamed_display_rows: Option<Vec<AnyElement>>,
7608 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7609 inline_blame: Option<AnyElement>,
7610 blocks: Vec<BlockLayout>,
7611 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7612 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7613 redacted_ranges: Vec<Range<DisplayPoint>>,
7614 cursors: Vec<(DisplayPoint, Hsla)>,
7615 visible_cursors: Vec<CursorLayout>,
7616 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7617 code_actions_indicator: Option<AnyElement>,
7618 test_indicators: Vec<AnyElement>,
7619 crease_toggles: Vec<Option<AnyElement>>,
7620 diff_hunk_controls: Vec<AnyElement>,
7621 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7622 inline_completion_popover: Option<AnyElement>,
7623 mouse_context_menu: Option<AnyElement>,
7624 tab_invisible: ShapedLine,
7625 space_invisible: ShapedLine,
7626 sticky_buffer_header: Option<AnyElement>,
7627}
7628
7629impl EditorLayout {
7630 fn line_end_overshoot(&self) -> Pixels {
7631 0.15 * self.position_map.line_height
7632 }
7633}
7634
7635struct LineNumberLayout {
7636 shaped_line: ShapedLine,
7637 hitbox: Option<Hitbox>,
7638 display_row: DisplayRow,
7639}
7640
7641struct ColoredRange<T> {
7642 start: T,
7643 end: T,
7644 color: Hsla,
7645}
7646
7647#[derive(Clone)]
7648struct ScrollbarLayout {
7649 hitbox: Hitbox,
7650 visible_range: Range<f32>,
7651 visible: bool,
7652 text_unit_size: Pixels,
7653 thumb_size: Pixels,
7654 axis: Axis,
7655}
7656
7657impl ScrollbarLayout {
7658 const BORDER_WIDTH: Pixels = px(1.0);
7659 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7660 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7661 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7662
7663 fn thumb_bounds(&self) -> Bounds<Pixels> {
7664 match self.axis {
7665 Axis::Vertical => {
7666 let thumb_top = self.y_for_row(self.visible_range.start);
7667 let thumb_bottom = thumb_top + self.thumb_size;
7668 Bounds::from_corners(
7669 point(self.hitbox.left(), thumb_top),
7670 point(self.hitbox.right(), thumb_bottom),
7671 )
7672 }
7673 Axis::Horizontal => {
7674 let thumb_left =
7675 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7676 let thumb_right = thumb_left + self.thumb_size;
7677 Bounds::from_corners(
7678 point(thumb_left, self.hitbox.top()),
7679 point(thumb_right, self.hitbox.bottom()),
7680 )
7681 }
7682 }
7683 }
7684
7685 fn y_for_row(&self, row: f32) -> Pixels {
7686 self.hitbox.top() + row * self.text_unit_size
7687 }
7688
7689 fn marker_quads_for_ranges(
7690 &self,
7691 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7692 column: Option<usize>,
7693 ) -> Vec<PaintQuad> {
7694 struct MinMax {
7695 min: Pixels,
7696 max: Pixels,
7697 }
7698 let (x_range, height_limit) = if let Some(column) = column {
7699 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7700 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7701 let end = start + column_width;
7702 (
7703 Range { start, end },
7704 MinMax {
7705 min: Self::MIN_MARKER_HEIGHT,
7706 max: px(f32::MAX),
7707 },
7708 )
7709 } else {
7710 (
7711 Range {
7712 start: Self::BORDER_WIDTH,
7713 end: self.hitbox.size.width,
7714 },
7715 MinMax {
7716 min: Self::LINE_MARKER_HEIGHT,
7717 max: Self::LINE_MARKER_HEIGHT,
7718 },
7719 )
7720 };
7721
7722 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7723 let mut pixel_ranges = row_ranges
7724 .into_iter()
7725 .map(|range| {
7726 let start_y = row_to_y(range.start);
7727 let end_y = row_to_y(range.end)
7728 + self
7729 .text_unit_size
7730 .max(height_limit.min)
7731 .min(height_limit.max);
7732 ColoredRange {
7733 start: start_y,
7734 end: end_y,
7735 color: range.color,
7736 }
7737 })
7738 .peekable();
7739
7740 let mut quads = Vec::new();
7741 while let Some(mut pixel_range) = pixel_ranges.next() {
7742 while let Some(next_pixel_range) = pixel_ranges.peek() {
7743 if pixel_range.end >= next_pixel_range.start - px(1.0)
7744 && pixel_range.color == next_pixel_range.color
7745 {
7746 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7747 pixel_ranges.next();
7748 } else {
7749 break;
7750 }
7751 }
7752
7753 let bounds = Bounds::from_corners(
7754 point(x_range.start, pixel_range.start),
7755 point(x_range.end, pixel_range.end),
7756 );
7757 quads.push(quad(
7758 bounds,
7759 Corners::default(),
7760 pixel_range.color,
7761 Edges::default(),
7762 Hsla::transparent_black(),
7763 ));
7764 }
7765
7766 quads
7767 }
7768}
7769
7770struct CreaseTrailerLayout {
7771 element: AnyElement,
7772 bounds: Bounds<Pixels>,
7773}
7774
7775pub(crate) struct PositionMap {
7776 pub size: Size<Pixels>,
7777 pub line_height: Pixels,
7778 pub scroll_pixel_position: gpui::Point<Pixels>,
7779 pub scroll_max: gpui::Point<f32>,
7780 pub em_width: Pixels,
7781 pub em_advance: Pixels,
7782 pub visible_row_range: Range<DisplayRow>,
7783 pub line_layouts: Vec<LineWithInvisibles>,
7784 pub snapshot: EditorSnapshot,
7785 pub text_hitbox: Hitbox,
7786 pub gutter_hitbox: Hitbox,
7787}
7788
7789#[derive(Debug, Copy, Clone)]
7790pub struct PointForPosition {
7791 pub previous_valid: DisplayPoint,
7792 pub next_valid: DisplayPoint,
7793 pub exact_unclipped: DisplayPoint,
7794 pub column_overshoot_after_line_end: u32,
7795}
7796
7797impl PointForPosition {
7798 pub fn as_valid(&self) -> Option<DisplayPoint> {
7799 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7800 Some(self.previous_valid)
7801 } else {
7802 None
7803 }
7804 }
7805}
7806
7807impl PositionMap {
7808 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7809 let text_bounds = self.text_hitbox.bounds;
7810 let scroll_position = self.snapshot.scroll_position();
7811 let position = position - text_bounds.origin;
7812 let y = position.y.max(px(0.)).min(self.size.height);
7813 let x = position.x + (scroll_position.x * self.em_width);
7814 let row = ((y / self.line_height) + scroll_position.y) as u32;
7815
7816 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7817 .line_layouts
7818 .get(row as usize - scroll_position.y as usize)
7819 {
7820 if let Some(ix) = line.index_for_x(x) {
7821 (ix as u32, px(0.))
7822 } else {
7823 (line.len as u32, px(0.).max(x - line.width))
7824 }
7825 } else {
7826 (0, x)
7827 };
7828
7829 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7830 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7831 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7832
7833 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7834 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7835 PointForPosition {
7836 previous_valid,
7837 next_valid,
7838 exact_unclipped,
7839 column_overshoot_after_line_end,
7840 }
7841 }
7842}
7843
7844struct BlockLayout {
7845 id: BlockId,
7846 row: Option<DisplayRow>,
7847 element: AnyElement,
7848 available_space: Size<AvailableSpace>,
7849 style: BlockStyle,
7850}
7851
7852pub fn layout_line(
7853 row: DisplayRow,
7854 snapshot: &EditorSnapshot,
7855 style: &EditorStyle,
7856 text_width: Pixels,
7857 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7858 window: &mut Window,
7859 cx: &mut App,
7860) -> LineWithInvisibles {
7861 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7862 LineWithInvisibles::from_chunks(
7863 chunks,
7864 &style,
7865 MAX_LINE_LEN,
7866 1,
7867 snapshot.mode,
7868 text_width,
7869 is_row_soft_wrapped,
7870 window,
7871 cx,
7872 )
7873 .pop()
7874 .unwrap()
7875}
7876
7877#[derive(Debug)]
7878pub struct IndentGuideLayout {
7879 origin: gpui::Point<Pixels>,
7880 length: Pixels,
7881 single_indent_width: Pixels,
7882 depth: u32,
7883 active: bool,
7884 settings: IndentGuideSettings,
7885}
7886
7887pub struct CursorLayout {
7888 origin: gpui::Point<Pixels>,
7889 block_width: Pixels,
7890 line_height: Pixels,
7891 color: Hsla,
7892 shape: CursorShape,
7893 block_text: Option<ShapedLine>,
7894 cursor_name: Option<AnyElement>,
7895}
7896
7897#[derive(Debug)]
7898pub struct CursorName {
7899 string: SharedString,
7900 color: Hsla,
7901 is_top_row: bool,
7902}
7903
7904impl CursorLayout {
7905 pub fn new(
7906 origin: gpui::Point<Pixels>,
7907 block_width: Pixels,
7908 line_height: Pixels,
7909 color: Hsla,
7910 shape: CursorShape,
7911 block_text: Option<ShapedLine>,
7912 ) -> CursorLayout {
7913 CursorLayout {
7914 origin,
7915 block_width,
7916 line_height,
7917 color,
7918 shape,
7919 block_text,
7920 cursor_name: None,
7921 }
7922 }
7923
7924 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7925 Bounds {
7926 origin: self.origin + origin,
7927 size: size(self.block_width, self.line_height),
7928 }
7929 }
7930
7931 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7932 match self.shape {
7933 CursorShape::Bar => Bounds {
7934 origin: self.origin + origin,
7935 size: size(px(2.0), self.line_height),
7936 },
7937 CursorShape::Block | CursorShape::Hollow => Bounds {
7938 origin: self.origin + origin,
7939 size: size(self.block_width, self.line_height),
7940 },
7941 CursorShape::Underline => Bounds {
7942 origin: self.origin
7943 + origin
7944 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
7945 size: size(self.block_width, px(2.0)),
7946 },
7947 }
7948 }
7949
7950 pub fn layout(
7951 &mut self,
7952 origin: gpui::Point<Pixels>,
7953 cursor_name: Option<CursorName>,
7954 window: &mut Window,
7955 cx: &mut App,
7956 ) {
7957 if let Some(cursor_name) = cursor_name {
7958 let bounds = self.bounds(origin);
7959 let text_size = self.line_height / 1.5;
7960
7961 let name_origin = if cursor_name.is_top_row {
7962 point(bounds.right() - px(1.), bounds.top())
7963 } else {
7964 match self.shape {
7965 CursorShape::Bar => point(
7966 bounds.right() - px(2.),
7967 bounds.top() - text_size / 2. - px(1.),
7968 ),
7969 _ => point(
7970 bounds.right() - px(1.),
7971 bounds.top() - text_size / 2. - px(1.),
7972 ),
7973 }
7974 };
7975 let mut name_element = div()
7976 .bg(self.color)
7977 .text_size(text_size)
7978 .px_0p5()
7979 .line_height(text_size + px(2.))
7980 .text_color(cursor_name.color)
7981 .child(cursor_name.string.clone())
7982 .into_any_element();
7983
7984 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
7985
7986 self.cursor_name = Some(name_element);
7987 }
7988 }
7989
7990 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
7991 let bounds = self.bounds(origin);
7992
7993 //Draw background or border quad
7994 let cursor = if matches!(self.shape, CursorShape::Hollow) {
7995 outline(bounds, self.color)
7996 } else {
7997 fill(bounds, self.color)
7998 };
7999
8000 if let Some(name) = &mut self.cursor_name {
8001 name.paint(window, cx);
8002 }
8003
8004 window.paint_quad(cursor);
8005
8006 if let Some(block_text) = &self.block_text {
8007 block_text
8008 .paint(self.origin + origin, self.line_height, window, cx)
8009 .log_err();
8010 }
8011 }
8012
8013 pub fn shape(&self) -> CursorShape {
8014 self.shape
8015 }
8016}
8017
8018#[derive(Debug)]
8019pub struct HighlightedRange {
8020 pub start_y: Pixels,
8021 pub line_height: Pixels,
8022 pub lines: Vec<HighlightedRangeLine>,
8023 pub color: Hsla,
8024 pub corner_radius: Pixels,
8025}
8026
8027#[derive(Debug)]
8028pub struct HighlightedRangeLine {
8029 pub start_x: Pixels,
8030 pub end_x: Pixels,
8031}
8032
8033impl HighlightedRange {
8034 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8035 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8036 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8037 self.paint_lines(
8038 self.start_y + self.line_height,
8039 &self.lines[1..],
8040 bounds,
8041 window,
8042 );
8043 } else {
8044 self.paint_lines(self.start_y, &self.lines, bounds, window);
8045 }
8046 }
8047
8048 fn paint_lines(
8049 &self,
8050 start_y: Pixels,
8051 lines: &[HighlightedRangeLine],
8052 _bounds: Bounds<Pixels>,
8053 window: &mut Window,
8054 ) {
8055 if lines.is_empty() {
8056 return;
8057 }
8058
8059 let first_line = lines.first().unwrap();
8060 let last_line = lines.last().unwrap();
8061
8062 let first_top_left = point(first_line.start_x, start_y);
8063 let first_top_right = point(first_line.end_x, start_y);
8064
8065 let curve_height = point(Pixels::ZERO, self.corner_radius);
8066 let curve_width = |start_x: Pixels, end_x: Pixels| {
8067 let max = (end_x - start_x) / 2.;
8068 let width = if max < self.corner_radius {
8069 max
8070 } else {
8071 self.corner_radius
8072 };
8073
8074 point(width, Pixels::ZERO)
8075 };
8076
8077 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8078 let mut builder = gpui::PathBuilder::fill();
8079 builder.move_to(first_top_right - top_curve_width);
8080 builder.curve_to(first_top_right + curve_height, first_top_right);
8081
8082 let mut iter = lines.iter().enumerate().peekable();
8083 while let Some((ix, line)) = iter.next() {
8084 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8085
8086 if let Some((_, next_line)) = iter.peek() {
8087 let next_top_right = point(next_line.end_x, bottom_right.y);
8088
8089 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8090 Ordering::Equal => {
8091 builder.line_to(bottom_right);
8092 }
8093 Ordering::Less => {
8094 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8095 builder.line_to(bottom_right - curve_height);
8096 if self.corner_radius > Pixels::ZERO {
8097 builder.curve_to(bottom_right - curve_width, bottom_right);
8098 }
8099 builder.line_to(next_top_right + curve_width);
8100 if self.corner_radius > Pixels::ZERO {
8101 builder.curve_to(next_top_right + curve_height, next_top_right);
8102 }
8103 }
8104 Ordering::Greater => {
8105 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8106 builder.line_to(bottom_right - curve_height);
8107 if self.corner_radius > Pixels::ZERO {
8108 builder.curve_to(bottom_right + curve_width, bottom_right);
8109 }
8110 builder.line_to(next_top_right - curve_width);
8111 if self.corner_radius > Pixels::ZERO {
8112 builder.curve_to(next_top_right + curve_height, next_top_right);
8113 }
8114 }
8115 }
8116 } else {
8117 let curve_width = curve_width(line.start_x, line.end_x);
8118 builder.line_to(bottom_right - curve_height);
8119 if self.corner_radius > Pixels::ZERO {
8120 builder.curve_to(bottom_right - curve_width, bottom_right);
8121 }
8122
8123 let bottom_left = point(line.start_x, bottom_right.y);
8124 builder.line_to(bottom_left + curve_width);
8125 if self.corner_radius > Pixels::ZERO {
8126 builder.curve_to(bottom_left - curve_height, bottom_left);
8127 }
8128 }
8129 }
8130
8131 if first_line.start_x > last_line.start_x {
8132 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8133 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8134 builder.line_to(second_top_left + curve_height);
8135 if self.corner_radius > Pixels::ZERO {
8136 builder.curve_to(second_top_left + curve_width, second_top_left);
8137 }
8138 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8139 builder.line_to(first_bottom_left - curve_width);
8140 if self.corner_radius > Pixels::ZERO {
8141 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8142 }
8143 }
8144
8145 builder.line_to(first_top_left + curve_height);
8146 if self.corner_radius > Pixels::ZERO {
8147 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8148 }
8149 builder.line_to(first_top_right - top_curve_width);
8150
8151 if let Ok(path) = builder.build() {
8152 window.paint_path(path, self.color);
8153 }
8154 }
8155}
8156
8157enum CursorPopoverType {
8158 CodeContextMenu,
8159 EditPrediction,
8160}
8161
8162pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8163 (delta.pow(1.5) / 100.0).into()
8164}
8165
8166fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8167 (delta.pow(1.2) / 300.0).into()
8168}
8169
8170pub fn register_action<T: Action>(
8171 editor: &Entity<Editor>,
8172 window: &mut Window,
8173 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8174) {
8175 let editor = editor.clone();
8176 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8177 let action = action.downcast_ref().unwrap();
8178 if phase == DispatchPhase::Bubble {
8179 editor.update(cx, |editor, cx| {
8180 listener(editor, action, window, cx);
8181 })
8182 }
8183 })
8184}
8185
8186fn compute_auto_height_layout(
8187 editor: &mut Editor,
8188 max_lines: usize,
8189 max_line_number_width: Pixels,
8190 known_dimensions: Size<Option<Pixels>>,
8191 available_width: AvailableSpace,
8192 window: &mut Window,
8193 cx: &mut Context<Editor>,
8194) -> Option<Size<Pixels>> {
8195 let width = known_dimensions.width.or({
8196 if let AvailableSpace::Definite(available_width) = available_width {
8197 Some(available_width)
8198 } else {
8199 None
8200 }
8201 })?;
8202 if let Some(height) = known_dimensions.height {
8203 return Some(size(width, height));
8204 }
8205
8206 let style = editor.style.as_ref().unwrap();
8207 let font_id = window.text_system().resolve_font(&style.text.font());
8208 let font_size = style.text.font_size.to_pixels(window.rem_size());
8209 let line_height = style.text.line_height_in_pixels(window.rem_size());
8210 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8211
8212 let mut snapshot = editor.snapshot(window, cx);
8213 let gutter_dimensions = snapshot
8214 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8215 .unwrap_or_default();
8216
8217 editor.gutter_dimensions = gutter_dimensions;
8218 let text_width = width - gutter_dimensions.width;
8219 let overscroll = size(em_width, px(0.));
8220
8221 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8222 if editor.set_wrap_width(Some(editor_width), cx) {
8223 snapshot = editor.snapshot(window, cx);
8224 }
8225
8226 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8227 let height = scroll_height
8228 .max(line_height)
8229 .min(line_height * max_lines as f32);
8230
8231 Some(size(width, height))
8232}
8233
8234#[cfg(test)]
8235mod tests {
8236 use super::*;
8237 use crate::{
8238 display_map::{BlockPlacement, BlockProperties},
8239 editor_tests::{init_test, update_test_language_settings},
8240 Editor, MultiBuffer,
8241 };
8242 use gpui::{TestAppContext, VisualTestContext};
8243 use language::language_settings;
8244 use log::info;
8245 use std::num::NonZeroU32;
8246 use util::test::sample_text;
8247
8248 #[gpui::test]
8249 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8250 init_test(cx, |_| {});
8251 let window = cx.add_window(|window, cx| {
8252 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8253 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8254 });
8255
8256 let editor = window.root(cx).unwrap();
8257 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8258 let line_height = window
8259 .update(cx, |_, window, _| {
8260 style.text.line_height_in_pixels(window.rem_size())
8261 })
8262 .unwrap();
8263 let element = EditorElement::new(&editor, style);
8264 let snapshot = window
8265 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8266 .unwrap();
8267
8268 let layouts = cx
8269 .update_window(*window, |_, window, cx| {
8270 element.layout_line_numbers(
8271 None,
8272 GutterDimensions {
8273 left_padding: Pixels::ZERO,
8274 right_padding: Pixels::ZERO,
8275 width: px(30.0),
8276 margin: Pixels::ZERO,
8277 git_blame_entries_width: None,
8278 },
8279 line_height,
8280 gpui::Point::default(),
8281 DisplayRow(0)..DisplayRow(6),
8282 &(0..6)
8283 .map(|row| RowInfo {
8284 buffer_row: Some(row),
8285 ..Default::default()
8286 })
8287 .collect::<Vec<_>>(),
8288 Some(DisplayPoint::new(DisplayRow(0), 0)),
8289 &snapshot,
8290 window,
8291 cx,
8292 )
8293 })
8294 .unwrap();
8295 assert_eq!(layouts.len(), 6);
8296
8297 let relative_rows = window
8298 .update(cx, |editor, window, cx| {
8299 let snapshot = editor.snapshot(window, cx);
8300 element.calculate_relative_line_numbers(
8301 &snapshot,
8302 &(DisplayRow(0)..DisplayRow(6)),
8303 Some(DisplayRow(3)),
8304 )
8305 })
8306 .unwrap();
8307 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8308 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8309 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8310 // current line has no relative number
8311 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8312 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8313
8314 // works if cursor is before screen
8315 let relative_rows = window
8316 .update(cx, |editor, window, cx| {
8317 let snapshot = editor.snapshot(window, cx);
8318 element.calculate_relative_line_numbers(
8319 &snapshot,
8320 &(DisplayRow(3)..DisplayRow(6)),
8321 Some(DisplayRow(1)),
8322 )
8323 })
8324 .unwrap();
8325 assert_eq!(relative_rows.len(), 3);
8326 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8327 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8328 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8329
8330 // works if cursor is after screen
8331 let relative_rows = window
8332 .update(cx, |editor, window, cx| {
8333 let snapshot = editor.snapshot(window, cx);
8334 element.calculate_relative_line_numbers(
8335 &snapshot,
8336 &(DisplayRow(0)..DisplayRow(3)),
8337 Some(DisplayRow(6)),
8338 )
8339 })
8340 .unwrap();
8341 assert_eq!(relative_rows.len(), 3);
8342 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8343 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8344 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8345 }
8346
8347 #[gpui::test]
8348 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8349 init_test(cx, |_| {});
8350
8351 let window = cx.add_window(|window, cx| {
8352 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8353 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8354 });
8355 let cx = &mut VisualTestContext::from_window(*window, cx);
8356 let editor = window.root(cx).unwrap();
8357 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8358
8359 window
8360 .update(cx, |editor, window, cx| {
8361 editor.cursor_shape = CursorShape::Block;
8362 editor.change_selections(None, window, cx, |s| {
8363 s.select_ranges([
8364 Point::new(0, 0)..Point::new(1, 0),
8365 Point::new(3, 2)..Point::new(3, 3),
8366 Point::new(5, 6)..Point::new(6, 0),
8367 ]);
8368 });
8369 })
8370 .unwrap();
8371
8372 let (_, state) = cx.draw(
8373 point(px(500.), px(500.)),
8374 size(px(500.), px(500.)),
8375 |_, _| EditorElement::new(&editor, style),
8376 );
8377
8378 assert_eq!(state.selections.len(), 1);
8379 let local_selections = &state.selections[0].1;
8380 assert_eq!(local_selections.len(), 3);
8381 // moves cursor back one line
8382 assert_eq!(
8383 local_selections[0].head,
8384 DisplayPoint::new(DisplayRow(0), 6)
8385 );
8386 assert_eq!(
8387 local_selections[0].range,
8388 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8389 );
8390
8391 // moves cursor back one column
8392 assert_eq!(
8393 local_selections[1].range,
8394 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8395 );
8396 assert_eq!(
8397 local_selections[1].head,
8398 DisplayPoint::new(DisplayRow(3), 2)
8399 );
8400
8401 // leaves cursor on the max point
8402 assert_eq!(
8403 local_selections[2].range,
8404 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8405 );
8406 assert_eq!(
8407 local_selections[2].head,
8408 DisplayPoint::new(DisplayRow(6), 0)
8409 );
8410
8411 // active lines does not include 1 (even though the range of the selection does)
8412 assert_eq!(
8413 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8414 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8415 );
8416
8417 // multi-buffer support
8418 // in DisplayPoint coordinates, this is what we're dealing with:
8419 // 0: [[file
8420 // 1: header
8421 // 2: section]]
8422 // 3: aaaaaa
8423 // 4: bbbbbb
8424 // 5: cccccc
8425 // 6:
8426 // 7: [[footer]]
8427 // 8: [[header]]
8428 // 9: ffffff
8429 // 10: gggggg
8430 // 11: hhhhhh
8431 // 12:
8432 // 13: [[footer]]
8433 // 14: [[file
8434 // 15: header
8435 // 16: section]]
8436 // 17: bbbbbb
8437 // 18: cccccc
8438 // 19: dddddd
8439 // 20: [[footer]]
8440 let window = cx.add_window(|window, cx| {
8441 let buffer = MultiBuffer::build_multi(
8442 [
8443 (
8444 &(sample_text(8, 6, 'a') + "\n"),
8445 vec![
8446 Point::new(0, 0)..Point::new(3, 0),
8447 Point::new(4, 0)..Point::new(7, 0),
8448 ],
8449 ),
8450 (
8451 &(sample_text(8, 6, 'a') + "\n"),
8452 vec![Point::new(1, 0)..Point::new(3, 0)],
8453 ),
8454 ],
8455 cx,
8456 );
8457 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8458 });
8459 let editor = window.root(cx).unwrap();
8460 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8461 let _state = window.update(cx, |editor, window, cx| {
8462 editor.cursor_shape = CursorShape::Block;
8463 editor.change_selections(None, window, cx, |s| {
8464 s.select_display_ranges([
8465 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8466 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8467 ]);
8468 });
8469 });
8470
8471 let (_, state) = cx.draw(
8472 point(px(500.), px(500.)),
8473 size(px(500.), px(500.)),
8474 |_, _| EditorElement::new(&editor, style),
8475 );
8476 assert_eq!(state.selections.len(), 1);
8477 let local_selections = &state.selections[0].1;
8478 assert_eq!(local_selections.len(), 2);
8479
8480 // moves cursor on excerpt boundary back a line
8481 // and doesn't allow selection to bleed through
8482 assert_eq!(
8483 local_selections[0].range,
8484 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8485 );
8486 assert_eq!(
8487 local_selections[0].head,
8488 DisplayPoint::new(DisplayRow(6), 0)
8489 );
8490 // moves cursor on buffer boundary back two lines
8491 // and doesn't allow selection to bleed through
8492 assert_eq!(
8493 local_selections[1].range,
8494 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8495 );
8496 assert_eq!(
8497 local_selections[1].head,
8498 DisplayPoint::new(DisplayRow(12), 0)
8499 );
8500 }
8501
8502 #[gpui::test]
8503 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8504 init_test(cx, |_| {});
8505
8506 let window = cx.add_window(|window, cx| {
8507 let buffer = MultiBuffer::build_simple("", cx);
8508 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8509 });
8510 let cx = &mut VisualTestContext::from_window(*window, cx);
8511 let editor = window.root(cx).unwrap();
8512 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8513 window
8514 .update(cx, |editor, window, cx| {
8515 editor.set_placeholder_text("hello", cx);
8516 editor.insert_blocks(
8517 [BlockProperties {
8518 style: BlockStyle::Fixed,
8519 placement: BlockPlacement::Above(Anchor::min()),
8520 height: 3,
8521 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8522 priority: 0,
8523 }],
8524 None,
8525 cx,
8526 );
8527
8528 // Blur the editor so that it displays placeholder text.
8529 window.blur();
8530 })
8531 .unwrap();
8532
8533 let (_, state) = cx.draw(
8534 point(px(500.), px(500.)),
8535 size(px(500.), px(500.)),
8536 |_, _| EditorElement::new(&editor, style),
8537 );
8538 assert_eq!(state.position_map.line_layouts.len(), 4);
8539 assert_eq!(state.line_numbers.len(), 1);
8540 assert_eq!(
8541 state
8542 .line_numbers
8543 .get(&MultiBufferRow(0))
8544 .map(|line_number| line_number.shaped_line.text.as_ref()),
8545 Some("1")
8546 );
8547 }
8548
8549 #[gpui::test]
8550 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8551 const TAB_SIZE: u32 = 4;
8552
8553 let input_text = "\t \t|\t| a b";
8554 let expected_invisibles = vec![
8555 Invisible::Tab {
8556 line_start_offset: 0,
8557 line_end_offset: TAB_SIZE as usize,
8558 },
8559 Invisible::Whitespace {
8560 line_offset: TAB_SIZE as usize,
8561 },
8562 Invisible::Tab {
8563 line_start_offset: TAB_SIZE as usize + 1,
8564 line_end_offset: TAB_SIZE as usize * 2,
8565 },
8566 Invisible::Tab {
8567 line_start_offset: TAB_SIZE as usize * 2 + 1,
8568 line_end_offset: TAB_SIZE as usize * 3,
8569 },
8570 Invisible::Whitespace {
8571 line_offset: TAB_SIZE as usize * 3 + 1,
8572 },
8573 Invisible::Whitespace {
8574 line_offset: TAB_SIZE as usize * 3 + 3,
8575 },
8576 ];
8577 assert_eq!(
8578 expected_invisibles.len(),
8579 input_text
8580 .chars()
8581 .filter(|initial_char| initial_char.is_whitespace())
8582 .count(),
8583 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8584 );
8585
8586 for show_line_numbers in [true, false] {
8587 init_test(cx, |s| {
8588 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8589 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8590 });
8591
8592 let actual_invisibles = collect_invisibles_from_new_editor(
8593 cx,
8594 EditorMode::Full,
8595 input_text,
8596 px(500.0),
8597 show_line_numbers,
8598 );
8599
8600 assert_eq!(expected_invisibles, actual_invisibles);
8601 }
8602 }
8603
8604 #[gpui::test]
8605 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8606 init_test(cx, |s| {
8607 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8608 s.defaults.tab_size = NonZeroU32::new(4);
8609 });
8610
8611 for editor_mode_without_invisibles in [
8612 EditorMode::SingleLine { auto_width: false },
8613 EditorMode::AutoHeight { max_lines: 100 },
8614 ] {
8615 for show_line_numbers in [true, false] {
8616 let invisibles = collect_invisibles_from_new_editor(
8617 cx,
8618 editor_mode_without_invisibles,
8619 "\t\t\t| | a b",
8620 px(500.0),
8621 show_line_numbers,
8622 );
8623 assert!(invisibles.is_empty(),
8624 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8625 }
8626 }
8627 }
8628
8629 #[gpui::test]
8630 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8631 let tab_size = 4;
8632 let input_text = "a\tbcd ".repeat(9);
8633 let repeated_invisibles = [
8634 Invisible::Tab {
8635 line_start_offset: 1,
8636 line_end_offset: tab_size as usize,
8637 },
8638 Invisible::Whitespace {
8639 line_offset: tab_size as usize + 3,
8640 },
8641 Invisible::Whitespace {
8642 line_offset: tab_size as usize + 4,
8643 },
8644 Invisible::Whitespace {
8645 line_offset: tab_size as usize + 5,
8646 },
8647 Invisible::Whitespace {
8648 line_offset: tab_size as usize + 6,
8649 },
8650 Invisible::Whitespace {
8651 line_offset: tab_size as usize + 7,
8652 },
8653 ];
8654 let expected_invisibles = std::iter::once(repeated_invisibles)
8655 .cycle()
8656 .take(9)
8657 .flatten()
8658 .collect::<Vec<_>>();
8659 assert_eq!(
8660 expected_invisibles.len(),
8661 input_text
8662 .chars()
8663 .filter(|initial_char| initial_char.is_whitespace())
8664 .count(),
8665 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8666 );
8667 info!("Expected invisibles: {expected_invisibles:?}");
8668
8669 init_test(cx, |_| {});
8670
8671 // Put the same string with repeating whitespace pattern into editors of various size,
8672 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8673 let resize_step = 10.0;
8674 let mut editor_width = 200.0;
8675 while editor_width <= 1000.0 {
8676 for show_line_numbers in [true, false] {
8677 update_test_language_settings(cx, |s| {
8678 s.defaults.tab_size = NonZeroU32::new(tab_size);
8679 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8680 s.defaults.preferred_line_length = Some(editor_width as u32);
8681 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8682 });
8683
8684 let actual_invisibles = collect_invisibles_from_new_editor(
8685 cx,
8686 EditorMode::Full,
8687 &input_text,
8688 px(editor_width),
8689 show_line_numbers,
8690 );
8691
8692 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8693 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8694 let mut i = 0;
8695 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8696 i = actual_index;
8697 match expected_invisibles.get(i) {
8698 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8699 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8700 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8701 _ => {
8702 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8703 }
8704 },
8705 None => {
8706 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8707 }
8708 }
8709 }
8710 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8711 assert!(
8712 missing_expected_invisibles.is_empty(),
8713 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8714 );
8715
8716 editor_width += resize_step;
8717 }
8718 }
8719 }
8720
8721 fn collect_invisibles_from_new_editor(
8722 cx: &mut TestAppContext,
8723 editor_mode: EditorMode,
8724 input_text: &str,
8725 editor_width: Pixels,
8726 show_line_numbers: bool,
8727 ) -> Vec<Invisible> {
8728 info!(
8729 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8730 editor_width.0
8731 );
8732 let window = cx.add_window(|window, cx| {
8733 let buffer = MultiBuffer::build_simple(input_text, cx);
8734 Editor::new(editor_mode, buffer, None, true, window, cx)
8735 });
8736 let cx = &mut VisualTestContext::from_window(*window, cx);
8737 let editor = window.root(cx).unwrap();
8738
8739 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8740 window
8741 .update(cx, |editor, _, cx| {
8742 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8743 editor.set_wrap_width(Some(editor_width), cx);
8744 editor.set_show_line_numbers(show_line_numbers, cx);
8745 })
8746 .unwrap();
8747 let (_, state) = cx.draw(
8748 point(px(500.), px(500.)),
8749 size(px(500.), px(500.)),
8750 |_, _| EditorElement::new(&editor, style),
8751 );
8752 state
8753 .position_map
8754 .line_layouts
8755 .iter()
8756 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8757 .cloned()
8758 .collect()
8759 }
8760}
8761
8762fn diff_hunk_controls(
8763 row: u32,
8764 status: &DiffHunkStatus,
8765 hunk_range: Range<Anchor>,
8766 line_height: Pixels,
8767 editor: &Entity<Editor>,
8768 cx: &mut App,
8769) -> AnyElement {
8770 h_flex()
8771 .h(line_height)
8772 .mr_1()
8773 .gap_1()
8774 .px_1()
8775 .pb_1()
8776 .border_b_1()
8777 .border_color(cx.theme().colors().border_variant)
8778 .rounded_b_lg()
8779 .bg(cx.theme().colors().editor_background)
8780 .gap_1()
8781 .child(if status.has_secondary_hunk() {
8782 Button::new(("stage", row as u64), "Stage")
8783 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8784 .tooltip({
8785 let focus_handle = editor.focus_handle(cx);
8786 move |window, cx| {
8787 Tooltip::for_action_in(
8788 "Stage Hunk",
8789 &::git::ToggleStaged,
8790 &focus_handle,
8791 window,
8792 cx,
8793 )
8794 }
8795 })
8796 .on_click({
8797 let editor = editor.clone();
8798 move |_event, window, cx| {
8799 editor.update(cx, |editor, cx| {
8800 editor.stage_or_unstage_diff_hunks(
8801 true,
8802 &[hunk_range.start..hunk_range.start],
8803 window,
8804 cx,
8805 );
8806 });
8807 }
8808 })
8809 } else {
8810 Button::new(("unstage", row as u64), "Unstage")
8811 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8812 .tooltip({
8813 let focus_handle = editor.focus_handle(cx);
8814 move |window, cx| {
8815 Tooltip::for_action_in(
8816 "Unstage Hunk",
8817 &::git::ToggleStaged,
8818 &focus_handle,
8819 window,
8820 cx,
8821 )
8822 }
8823 })
8824 .on_click({
8825 let editor = editor.clone();
8826 move |_event, window, cx| {
8827 editor.update(cx, |editor, cx| {
8828 editor.stage_or_unstage_diff_hunks(
8829 false,
8830 &[hunk_range.start..hunk_range.start],
8831 window,
8832 cx,
8833 );
8834 });
8835 }
8836 })
8837 })
8838 .child(
8839 Button::new("discard", "Restore")
8840 .tooltip({
8841 let focus_handle = editor.focus_handle(cx);
8842 move |window, cx| {
8843 Tooltip::for_action_in(
8844 "Restore Hunk",
8845 &::git::Restore,
8846 &focus_handle,
8847 window,
8848 cx,
8849 )
8850 }
8851 })
8852 .on_click({
8853 let editor = editor.clone();
8854 move |_event, window, cx| {
8855 editor.update(cx, |editor, cx| {
8856 let snapshot = editor.snapshot(window, cx);
8857 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8858 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8859 });
8860 }
8861 }),
8862 )
8863 .when(
8864 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8865 |el| {
8866 el.child(
8867 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8868 .shape(IconButtonShape::Square)
8869 .icon_size(IconSize::Small)
8870 // .disabled(!has_multiple_hunks)
8871 .tooltip({
8872 let focus_handle = editor.focus_handle(cx);
8873 move |window, cx| {
8874 Tooltip::for_action_in(
8875 "Next Hunk",
8876 &GoToHunk::default(),
8877 &focus_handle,
8878 window,
8879 cx,
8880 )
8881 }
8882 })
8883 .on_click({
8884 let editor = editor.clone();
8885 move |_event, window, cx| {
8886 editor.update(cx, |editor, cx| {
8887 let snapshot = editor.snapshot(window, cx);
8888 let position =
8889 hunk_range.end.to_point(&snapshot.buffer_snapshot);
8890 editor.go_to_hunk_after_or_before_position(
8891 &snapshot, position, true, true, window, cx,
8892 );
8893 editor.expand_selected_diff_hunks(cx);
8894 });
8895 }
8896 }),
8897 )
8898 .child(
8899 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8900 .shape(IconButtonShape::Square)
8901 .icon_size(IconSize::Small)
8902 // .disabled(!has_multiple_hunks)
8903 .tooltip({
8904 let focus_handle = editor.focus_handle(cx);
8905 move |window, cx| {
8906 Tooltip::for_action_in(
8907 "Previous Hunk",
8908 &GoToPrevHunk::default(),
8909 &focus_handle,
8910 window,
8911 cx,
8912 )
8913 }
8914 })
8915 .on_click({
8916 let editor = editor.clone();
8917 move |_event, window, cx| {
8918 editor.update(cx, |editor, cx| {
8919 let snapshot = editor.snapshot(window, cx);
8920 let point =
8921 hunk_range.start.to_point(&snapshot.buffer_snapshot);
8922 editor.go_to_hunk_after_or_before_position(
8923 &snapshot, point, false, true, window, cx,
8924 );
8925 editor.expand_selected_diff_hunks(cx);
8926 });
8927 }
8928 }),
8929 )
8930 },
8931 )
8932 .into_any_element()
8933}