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 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
22 InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point, RowExt,
23 RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap, StickyHeaderExcerpt,
24 ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
25 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use buffer_diff::{DiffHunkSecondaryStatus, DiffHunkStatus, DiffHunkStatusKind};
28use client::ParticipantIndex;
29use collections::{BTreeMap, HashMap, HashSet};
30use file_icons::FileIcons;
31use git::{blame::BlameEntry, Oid};
32use gpui::{
33 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
34 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
35 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
36 Edges, Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
37 Hsla, InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
38 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
39 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
40 Subscription, TextRun, TextStyleRefinement, Window,
41};
42use itertools::Itertools;
43use language::{
44 language_settings::{
45 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
46 ShowWhitespaceSetting,
47 },
48 ChunkRendererContext,
49};
50use lsp::DiagnosticSeverity;
51use multi_buffer::{
52 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
53 RowInfo, ToOffset,
54};
55use project::project_settings::{self, GitGutterSetting, ProjectSettings};
56use settings::Settings;
57use smallvec::{smallvec, SmallVec};
58use std::{
59 any::TypeId,
60 borrow::Cow,
61 cmp::{self, Ordering},
62 fmt::{self, Write},
63 iter, mem,
64 ops::{Deref, Range},
65 rc::Rc,
66 sync::Arc,
67};
68use sum_tree::Bias;
69use text::BufferId;
70use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
71use ui::{
72 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
73 POPOVER_Y_PADDING,
74};
75use unicode_segmentation::UnicodeSegmentation;
76use util::{debug_panic, RangeExt, ResultExt};
77use workspace::{item::Item, notifications::NotifyTaskExt};
78
79const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
80const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
81
82#[derive(Debug, Clone, PartialEq, Eq)]
83enum DisplayDiffHunk {
84 Folded {
85 display_row: DisplayRow,
86 },
87 Unfolded {
88 diff_base_byte_range: Range<usize>,
89 display_row_range: Range<DisplayRow>,
90 multi_buffer_range: Range<Anchor>,
91 status: DiffHunkStatus,
92 },
93}
94
95struct SelectionLayout {
96 head: DisplayPoint,
97 cursor_shape: CursorShape,
98 is_newest: bool,
99 is_local: bool,
100 range: Range<DisplayPoint>,
101 active_rows: Range<DisplayRow>,
102 user_name: Option<SharedString>,
103}
104
105impl SelectionLayout {
106 fn new<T: ToPoint + ToDisplayPoint + Clone>(
107 selection: Selection<T>,
108 line_mode: bool,
109 cursor_shape: CursorShape,
110 map: &DisplaySnapshot,
111 is_newest: bool,
112 is_local: bool,
113 user_name: Option<SharedString>,
114 ) -> Self {
115 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
116 let display_selection = point_selection.map(|p| p.to_display_point(map));
117 let mut range = display_selection.range();
118 let mut head = display_selection.head();
119 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
120 ..map.next_line_boundary(point_selection.end).1.row();
121
122 // vim visual line mode
123 if line_mode {
124 let point_range = map.expand_to_line(point_selection.range());
125 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
126 }
127
128 // any vim visual mode (including line mode)
129 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
130 && !range.is_empty()
131 && !selection.reversed
132 {
133 if head.column() > 0 {
134 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
135 } else if head.row().0 > 0 && head != map.max_point() {
136 head = map.clip_point(
137 DisplayPoint::new(
138 head.row().previous_row(),
139 map.line_len(head.row().previous_row()),
140 ),
141 Bias::Left,
142 );
143 // updating range.end is a no-op unless you're cursor is
144 // on the newline containing a multi-buffer divider
145 // in which case the clip_point may have moved the head up
146 // an additional row.
147 range.end = DisplayPoint::new(head.row().next_row(), 0);
148 active_rows.end = head.row();
149 }
150 }
151
152 Self {
153 head,
154 cursor_shape,
155 is_newest,
156 is_local,
157 range,
158 active_rows,
159 user_name,
160 }
161 }
162}
163
164pub struct EditorElement {
165 editor: Entity<Editor>,
166 style: EditorStyle,
167}
168
169type DisplayRowDelta = u32;
170
171impl EditorElement {
172 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
173
174 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
175 Self {
176 editor: editor.clone(),
177 style,
178 }
179 }
180
181 fn register_actions(&self, window: &mut Window, cx: &mut App) {
182 let editor = &self.editor;
183 editor.update(cx, |editor, cx| {
184 for action in editor.editor_actions.borrow().values() {
185 (action)(window, cx)
186 }
187 });
188
189 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
190 crate::clangd_ext::apply_related_actions(editor, window, cx);
191 register_action(editor, window, Editor::open_context_menu);
192 register_action(editor, window, Editor::move_left);
193 register_action(editor, window, Editor::move_right);
194 register_action(editor, window, Editor::move_down);
195 register_action(editor, window, Editor::move_down_by_lines);
196 register_action(editor, window, Editor::select_down_by_lines);
197 register_action(editor, window, Editor::move_up);
198 register_action(editor, window, Editor::move_up_by_lines);
199 register_action(editor, window, Editor::select_up_by_lines);
200 register_action(editor, window, Editor::select_page_down);
201 register_action(editor, window, Editor::select_page_up);
202 register_action(editor, window, Editor::cancel);
203 register_action(editor, window, Editor::newline);
204 register_action(editor, window, Editor::newline_above);
205 register_action(editor, window, Editor::newline_below);
206 register_action(editor, window, Editor::backspace);
207 register_action(editor, window, Editor::delete);
208 register_action(editor, window, Editor::tab);
209 register_action(editor, window, Editor::tab_prev);
210 register_action(editor, window, Editor::indent);
211 register_action(editor, window, Editor::outdent);
212 register_action(editor, window, Editor::autoindent);
213 register_action(editor, window, Editor::delete_line);
214 register_action(editor, window, Editor::join_lines);
215 register_action(editor, window, Editor::sort_lines_case_sensitive);
216 register_action(editor, window, Editor::sort_lines_case_insensitive);
217 register_action(editor, window, Editor::reverse_lines);
218 register_action(editor, window, Editor::shuffle_lines);
219 register_action(editor, window, Editor::convert_to_upper_case);
220 register_action(editor, window, Editor::convert_to_lower_case);
221 register_action(editor, window, Editor::convert_to_title_case);
222 register_action(editor, window, Editor::convert_to_snake_case);
223 register_action(editor, window, Editor::convert_to_kebab_case);
224 register_action(editor, window, Editor::convert_to_upper_camel_case);
225 register_action(editor, window, Editor::convert_to_lower_camel_case);
226 register_action(editor, window, Editor::convert_to_opposite_case);
227 register_action(editor, window, Editor::delete_to_previous_word_start);
228 register_action(editor, window, Editor::delete_to_previous_subword_start);
229 register_action(editor, window, Editor::delete_to_next_word_end);
230 register_action(editor, window, Editor::delete_to_next_subword_end);
231 register_action(editor, window, Editor::delete_to_beginning_of_line);
232 register_action(editor, window, Editor::delete_to_end_of_line);
233 register_action(editor, window, Editor::cut_to_end_of_line);
234 register_action(editor, window, Editor::duplicate_line_up);
235 register_action(editor, window, Editor::duplicate_line_down);
236 register_action(editor, window, Editor::duplicate_selection);
237 register_action(editor, window, Editor::move_line_up);
238 register_action(editor, window, Editor::move_line_down);
239 register_action(editor, window, Editor::transpose);
240 register_action(editor, window, Editor::rewrap);
241 register_action(editor, window, Editor::cut);
242 register_action(editor, window, Editor::kill_ring_cut);
243 register_action(editor, window, Editor::kill_ring_yank);
244 register_action(editor, window, Editor::copy);
245 register_action(editor, window, Editor::paste);
246 register_action(editor, window, Editor::undo);
247 register_action(editor, window, Editor::redo);
248 register_action(editor, window, Editor::move_page_up);
249 register_action(editor, window, Editor::move_page_down);
250 register_action(editor, window, Editor::next_screen);
251 register_action(editor, window, Editor::scroll_cursor_top);
252 register_action(editor, window, Editor::scroll_cursor_center);
253 register_action(editor, window, Editor::scroll_cursor_bottom);
254 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
255 register_action(editor, window, |editor, _: &LineDown, window, cx| {
256 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
257 });
258 register_action(editor, window, |editor, _: &LineUp, window, cx| {
259 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
260 });
261 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
262 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
263 });
264 register_action(
265 editor,
266 window,
267 |editor, HandleInput(text): &HandleInput, window, cx| {
268 if text.is_empty() {
269 return;
270 }
271 editor.handle_input(text, window, cx);
272 },
273 );
274 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
275 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
276 });
277 register_action(editor, window, |editor, _: &PageDown, window, cx| {
278 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
279 });
280 register_action(editor, window, |editor, _: &PageUp, window, cx| {
281 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
282 });
283 register_action(editor, window, Editor::move_to_previous_word_start);
284 register_action(editor, window, Editor::move_to_previous_subword_start);
285 register_action(editor, window, Editor::move_to_next_word_end);
286 register_action(editor, window, Editor::move_to_next_subword_end);
287 register_action(editor, window, Editor::move_to_beginning_of_line);
288 register_action(editor, window, Editor::move_to_end_of_line);
289 register_action(editor, window, Editor::move_to_start_of_paragraph);
290 register_action(editor, window, Editor::move_to_end_of_paragraph);
291 register_action(editor, window, Editor::move_to_beginning);
292 register_action(editor, window, Editor::move_to_end);
293 register_action(editor, window, Editor::move_to_start_of_excerpt);
294 register_action(editor, window, Editor::move_to_end_of_excerpt);
295 register_action(editor, window, Editor::select_up);
296 register_action(editor, window, Editor::select_down);
297 register_action(editor, window, Editor::select_left);
298 register_action(editor, window, Editor::select_right);
299 register_action(editor, window, Editor::select_to_previous_word_start);
300 register_action(editor, window, Editor::select_to_previous_subword_start);
301 register_action(editor, window, Editor::select_to_next_word_end);
302 register_action(editor, window, Editor::select_to_next_subword_end);
303 register_action(editor, window, Editor::select_to_beginning_of_line);
304 register_action(editor, window, Editor::select_to_end_of_line);
305 register_action(editor, window, Editor::select_to_start_of_paragraph);
306 register_action(editor, window, Editor::select_to_end_of_paragraph);
307 register_action(editor, window, Editor::select_to_start_of_excerpt);
308 register_action(editor, window, Editor::select_to_end_of_excerpt);
309 register_action(editor, window, Editor::select_to_beginning);
310 register_action(editor, window, Editor::select_to_end);
311 register_action(editor, window, Editor::select_all);
312 register_action(editor, window, |editor, action, window, cx| {
313 editor.select_all_matches(action, window, cx).log_err();
314 });
315 register_action(editor, window, Editor::select_line);
316 register_action(editor, window, Editor::split_selection_into_lines);
317 register_action(editor, window, Editor::add_selection_above);
318 register_action(editor, window, Editor::add_selection_below);
319 register_action(editor, window, |editor, action, window, cx| {
320 editor.select_next(action, window, cx).log_err();
321 });
322 register_action(editor, window, |editor, action, window, cx| {
323 editor.select_previous(action, window, cx).log_err();
324 });
325 register_action(editor, window, Editor::toggle_comments);
326 register_action(editor, window, Editor::select_larger_syntax_node);
327 register_action(editor, window, Editor::select_smaller_syntax_node);
328 register_action(editor, window, Editor::select_enclosing_symbol);
329 register_action(editor, window, Editor::move_to_enclosing_bracket);
330 register_action(editor, window, Editor::undo_selection);
331 register_action(editor, window, Editor::redo_selection);
332 if !editor.read(cx).is_singleton(cx) {
333 register_action(editor, window, Editor::expand_excerpts);
334 register_action(editor, window, Editor::expand_excerpts_up);
335 register_action(editor, window, Editor::expand_excerpts_down);
336 }
337 register_action(editor, window, Editor::go_to_diagnostic);
338 register_action(editor, window, Editor::go_to_prev_diagnostic);
339 register_action(editor, window, Editor::go_to_next_hunk);
340 register_action(editor, window, Editor::go_to_prev_hunk);
341 register_action(editor, window, |editor, action, window, cx| {
342 editor
343 .go_to_definition(action, window, cx)
344 .detach_and_log_err(cx);
345 });
346 register_action(editor, window, |editor, action, window, cx| {
347 editor
348 .go_to_definition_split(action, window, cx)
349 .detach_and_log_err(cx);
350 });
351 register_action(editor, window, |editor, action, window, cx| {
352 editor
353 .go_to_declaration(action, window, cx)
354 .detach_and_log_err(cx);
355 });
356 register_action(editor, window, |editor, action, window, cx| {
357 editor
358 .go_to_declaration_split(action, window, cx)
359 .detach_and_log_err(cx);
360 });
361 register_action(editor, window, |editor, action, window, cx| {
362 editor
363 .go_to_implementation(action, window, cx)
364 .detach_and_log_err(cx);
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor
368 .go_to_implementation_split(action, window, cx)
369 .detach_and_log_err(cx);
370 });
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_type_definition(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor
378 .go_to_type_definition_split(action, window, cx)
379 .detach_and_log_err(cx);
380 });
381 register_action(editor, window, Editor::open_url);
382 register_action(editor, window, Editor::open_selected_filename);
383 register_action(editor, window, Editor::fold);
384 register_action(editor, window, Editor::fold_at_level);
385 register_action(editor, window, Editor::fold_all);
386 register_action(editor, window, Editor::fold_function_bodies);
387 register_action(editor, window, Editor::fold_at);
388 register_action(editor, window, Editor::fold_recursive);
389 register_action(editor, window, Editor::toggle_fold);
390 register_action(editor, window, Editor::toggle_fold_recursive);
391 register_action(editor, window, Editor::unfold_lines);
392 register_action(editor, window, Editor::unfold_recursive);
393 register_action(editor, window, Editor::unfold_all);
394 register_action(editor, window, Editor::unfold_at);
395 register_action(editor, window, Editor::fold_selected_ranges);
396 register_action(editor, window, Editor::set_mark);
397 register_action(editor, window, Editor::swap_selection_ends);
398 register_action(editor, window, Editor::show_completions);
399 register_action(editor, window, Editor::toggle_code_actions);
400 register_action(editor, window, Editor::open_excerpts);
401 register_action(editor, window, Editor::open_excerpts_in_split);
402 register_action(editor, window, Editor::open_proposed_changes_editor);
403 register_action(editor, window, Editor::toggle_soft_wrap);
404 register_action(editor, window, Editor::toggle_tab_bar);
405 register_action(editor, window, Editor::toggle_line_numbers);
406 register_action(editor, window, Editor::toggle_relative_line_numbers);
407 register_action(editor, window, Editor::toggle_indent_guides);
408 register_action(editor, window, Editor::toggle_inlay_hints);
409 register_action(editor, window, Editor::toggle_inline_completions);
410 register_action(editor, window, Editor::toggle_inline_diagnostics);
411 register_action(editor, window, hover_popover::hover);
412 register_action(editor, window, Editor::reveal_in_finder);
413 register_action(editor, window, Editor::copy_path);
414 register_action(editor, window, Editor::copy_relative_path);
415 register_action(editor, window, Editor::copy_file_name);
416 register_action(editor, window, Editor::copy_file_name_without_extension);
417 register_action(editor, window, Editor::copy_highlight_json);
418 register_action(editor, window, Editor::copy_permalink_to_line);
419 register_action(editor, window, Editor::open_permalink_to_line);
420 register_action(editor, window, Editor::copy_file_location);
421 register_action(editor, window, Editor::toggle_git_blame);
422 register_action(editor, window, Editor::toggle_git_blame_inline);
423 register_action(editor, window, Editor::toggle_selected_diff_hunks);
424 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
425 register_action(editor, window, Editor::stage_and_next);
426 register_action(editor, window, Editor::unstage_and_next);
427 register_action(editor, window, Editor::expand_all_diff_hunks);
428
429 register_action(editor, window, |editor, action, window, cx| {
430 if let Some(task) = editor.format(action, window, cx) {
431 task.detach_and_notify_err(window, cx);
432 } else {
433 cx.propagate();
434 }
435 });
436 register_action(editor, window, |editor, action, window, cx| {
437 if let Some(task) = editor.format_selections(action, window, cx) {
438 task.detach_and_notify_err(window, cx);
439 } else {
440 cx.propagate();
441 }
442 });
443 register_action(editor, window, Editor::restart_language_server);
444 register_action(editor, window, Editor::show_character_palette);
445 register_action(editor, window, |editor, action, window, cx| {
446 if let Some(task) = editor.confirm_completion(action, window, cx) {
447 task.detach_and_notify_err(window, cx);
448 } else {
449 cx.propagate();
450 }
451 });
452 register_action(editor, window, |editor, action, window, cx| {
453 if let Some(task) = editor.compose_completion(action, window, cx) {
454 task.detach_and_notify_err(window, cx);
455 } else {
456 cx.propagate();
457 }
458 });
459 register_action(editor, window, |editor, action, window, cx| {
460 if let Some(task) = editor.confirm_code_action(action, window, cx) {
461 task.detach_and_notify_err(window, cx);
462 } else {
463 cx.propagate();
464 }
465 });
466 register_action(editor, window, |editor, action, window, cx| {
467 if let Some(task) = editor.rename(action, window, cx) {
468 task.detach_and_notify_err(window, cx);
469 } else {
470 cx.propagate();
471 }
472 });
473 register_action(editor, window, |editor, action, window, cx| {
474 if let Some(task) = editor.confirm_rename(action, window, cx) {
475 task.detach_and_notify_err(window, cx);
476 } else {
477 cx.propagate();
478 }
479 });
480 register_action(editor, window, |editor, action, window, cx| {
481 if let Some(task) = editor.find_all_references(action, window, cx) {
482 task.detach_and_log_err(cx);
483 } else {
484 cx.propagate();
485 }
486 });
487 register_action(editor, window, Editor::show_signature_help);
488 register_action(editor, window, Editor::next_edit_prediction);
489 register_action(editor, window, Editor::previous_edit_prediction);
490 register_action(editor, window, Editor::show_inline_completion);
491 register_action(editor, window, Editor::context_menu_first);
492 register_action(editor, window, Editor::context_menu_prev);
493 register_action(editor, window, Editor::context_menu_next);
494 register_action(editor, window, Editor::context_menu_last);
495 register_action(editor, window, Editor::display_cursor_names);
496 register_action(editor, window, Editor::unique_lines_case_insensitive);
497 register_action(editor, window, Editor::unique_lines_case_sensitive);
498 register_action(editor, window, Editor::accept_partial_inline_completion);
499 register_action(editor, window, Editor::accept_edit_prediction);
500 register_action(editor, window, Editor::restore_file);
501 register_action(editor, window, Editor::git_restore);
502 register_action(editor, window, Editor::apply_all_diff_hunks);
503 register_action(editor, window, Editor::apply_selected_diff_hunks);
504 register_action(editor, window, Editor::open_active_item_in_terminal);
505 register_action(editor, window, Editor::reload_file);
506 register_action(editor, window, Editor::spawn_nearest_task);
507 register_action(editor, window, Editor::insert_uuid_v4);
508 register_action(editor, window, Editor::insert_uuid_v7);
509 register_action(editor, window, Editor::open_selections_in_multibuffer);
510 }
511
512 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
513 let position_map = layout.position_map.clone();
514 window.on_key_event({
515 let editor = self.editor.clone();
516 move |event: &ModifiersChangedEvent, phase, window, cx| {
517 if phase != DispatchPhase::Bubble {
518 return;
519 }
520 editor.update(cx, |editor, cx| {
521 if editor.hover_state.focused(window, cx) {
522 return;
523 }
524
525 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
526 })
527 }
528 });
529 }
530
531 fn mouse_left_down(
532 editor: &mut Editor,
533 event: &MouseDownEvent,
534 hovered_hunk: Option<Range<Anchor>>,
535 position_map: &PositionMap,
536 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
537 window: &mut Window,
538 cx: &mut Context<Editor>,
539 ) {
540 if window.default_prevented() {
541 return;
542 }
543
544 let text_hitbox = &position_map.text_hitbox;
545 let gutter_hitbox = &position_map.gutter_hitbox;
546 let mut click_count = event.click_count;
547 let mut modifiers = event.modifiers;
548
549 if let Some(hovered_hunk) = hovered_hunk {
550 editor.toggle_diff_hunks_in_ranges_narrow(vec![hovered_hunk], cx);
551 cx.notify();
552 return;
553 } else if gutter_hitbox.is_hovered(window) {
554 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
555 } else if !text_hitbox.is_hovered(window) {
556 return;
557 }
558
559 let is_singleton = editor.buffer().read(cx).is_singleton();
560
561 if click_count == 2 && !is_singleton {
562 match EditorSettings::get_global(cx).double_click_in_multibuffer {
563 DoubleClickInMultibuffer::Select => {
564 // do nothing special on double click, all selection logic is below
565 }
566 DoubleClickInMultibuffer::Open => {
567 if modifiers.alt {
568 // if double click is made with alt, pretend it's a regular double click without opening and alt,
569 // and run the selection logic.
570 modifiers.alt = false;
571 } else {
572 let scroll_position_row =
573 position_map.scroll_pixel_position.y / position_map.line_height;
574 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
575 + position_map.scroll_pixel_position.y)
576 / position_map.line_height)
577 as u32;
578 let multi_buffer_row = position_map
579 .snapshot
580 .display_point_to_point(
581 DisplayPoint::new(DisplayRow(display_row), 0),
582 Bias::Right,
583 )
584 .row;
585 let line_offset_from_top = display_row - scroll_position_row as u32;
586 // if double click is made without alt, open the corresponding excerp
587 editor.open_excerpts_common(
588 Some(JumpData::MultiBufferRow {
589 row: MultiBufferRow(multi_buffer_row),
590 line_offset_from_top,
591 }),
592 false,
593 window,
594 cx,
595 );
596 return;
597 }
598 }
599 }
600 }
601
602 let point_for_position = position_map.point_for_position(event.position);
603 let position = point_for_position.previous_valid;
604 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
605 editor.select(
606 SelectPhase::BeginColumnar {
607 position,
608 reset: false,
609 goal_column: point_for_position.exact_unclipped.column(),
610 },
611 window,
612 cx,
613 );
614 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
615 {
616 editor.select(
617 SelectPhase::Extend {
618 position,
619 click_count,
620 },
621 window,
622 cx,
623 );
624 } else {
625 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
626 let multi_cursor_modifier = match multi_cursor_setting {
627 MultiCursorModifier::Alt => modifiers.alt,
628 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
629 };
630 editor.select(
631 SelectPhase::Begin {
632 position,
633 add: multi_cursor_modifier,
634 click_count,
635 },
636 window,
637 cx,
638 );
639 }
640 cx.stop_propagation();
641
642 if !is_singleton {
643 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
644 + position_map.scroll_pixel_position.y)
645 / position_map.line_height) as u32;
646 let multi_buffer_row = position_map
647 .snapshot
648 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
649 .row;
650 if line_numbers
651 .get(&MultiBufferRow(multi_buffer_row))
652 .and_then(|line_number| line_number.hitbox.as_ref())
653 .is_some_and(|hitbox| hitbox.contains(&event.position))
654 {
655 let scroll_position_row =
656 position_map.scroll_pixel_position.y / position_map.line_height;
657 let line_offset_from_top = display_row - scroll_position_row as u32;
658
659 editor.open_excerpts_common(
660 Some(JumpData::MultiBufferRow {
661 row: MultiBufferRow(multi_buffer_row),
662 line_offset_from_top,
663 }),
664 modifiers.alt,
665 window,
666 cx,
667 );
668 cx.stop_propagation();
669 }
670 }
671 }
672
673 fn mouse_right_down(
674 editor: &mut Editor,
675 event: &MouseDownEvent,
676 position_map: &PositionMap,
677 window: &mut Window,
678 cx: &mut Context<Editor>,
679 ) {
680 if !position_map.text_hitbox.is_hovered(window) {
681 return;
682 }
683 let point_for_position = position_map.point_for_position(event.position);
684 mouse_context_menu::deploy_context_menu(
685 editor,
686 Some(event.position),
687 point_for_position.previous_valid,
688 window,
689 cx,
690 );
691 cx.stop_propagation();
692 }
693
694 fn mouse_middle_down(
695 editor: &mut Editor,
696 event: &MouseDownEvent,
697 position_map: &PositionMap,
698 window: &mut Window,
699 cx: &mut Context<Editor>,
700 ) {
701 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
702 return;
703 }
704
705 let point_for_position = position_map.point_for_position(event.position);
706 let position = point_for_position.previous_valid;
707
708 editor.select(
709 SelectPhase::BeginColumnar {
710 position,
711 reset: true,
712 goal_column: point_for_position.exact_unclipped.column(),
713 },
714 window,
715 cx,
716 );
717 }
718
719 fn mouse_up(
720 editor: &mut Editor,
721 event: &MouseUpEvent,
722 position_map: &PositionMap,
723 window: &mut Window,
724 cx: &mut Context<Editor>,
725 ) {
726 let text_hitbox = &position_map.text_hitbox;
727 let end_selection = editor.has_pending_selection();
728 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
729
730 if end_selection {
731 editor.select(SelectPhase::End, window, cx);
732 }
733
734 if end_selection && pending_nonempty_selections {
735 cx.stop_propagation();
736 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
737 && event.button == MouseButton::Middle
738 {
739 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
740 return;
741 }
742
743 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
744 if EditorSettings::get_global(cx).middle_click_paste {
745 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
746 let point_for_position = position_map.point_for_position(event.position);
747 let position = point_for_position.previous_valid;
748
749 editor.select(
750 SelectPhase::Begin {
751 position,
752 add: false,
753 click_count: 1,
754 },
755 window,
756 cx,
757 );
758 editor.insert(&text, window, cx);
759 }
760 cx.stop_propagation()
761 }
762 }
763 }
764
765 fn click(
766 editor: &mut Editor,
767 event: &ClickEvent,
768 position_map: &PositionMap,
769 window: &mut Window,
770 cx: &mut Context<Editor>,
771 ) {
772 let text_hitbox = &position_map.text_hitbox;
773 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
774
775 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
776 let multi_cursor_modifier = match multi_cursor_setting {
777 MultiCursorModifier::Alt => event.modifiers().secondary(),
778 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
779 };
780
781 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
782 let point = position_map.point_for_position(event.up.position);
783 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
784
785 cx.stop_propagation();
786 }
787 }
788
789 fn mouse_dragged(
790 editor: &mut Editor,
791 event: &MouseMoveEvent,
792 position_map: &PositionMap,
793 window: &mut Window,
794 cx: &mut Context<Editor>,
795 ) {
796 if !editor.has_pending_selection() {
797 return;
798 }
799
800 let text_bounds = position_map.text_hitbox.bounds;
801 let point_for_position = position_map.point_for_position(event.position);
802 let mut scroll_delta = gpui::Point::<f32>::default();
803 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
804 let top = text_bounds.origin.y + vertical_margin;
805 let bottom = text_bounds.bottom_left().y - vertical_margin;
806 if event.position.y < top {
807 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
808 }
809 if event.position.y > bottom {
810 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
811 }
812
813 // We need horizontal width of text
814 let style = editor.style.clone().unwrap_or_default();
815 let font_id = window.text_system().resolve_font(&style.text.font());
816 let font_size = style.text.font_size.to_pixels(window.rem_size());
817 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
818
819 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
820
821 let scroll_space: Pixels = scroll_margin_x * em_width;
822
823 let left = text_bounds.origin.x + scroll_space;
824 let right = text_bounds.top_right().x - scroll_space;
825
826 if event.position.x < left {
827 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
828 }
829 if event.position.x > right {
830 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
831 }
832
833 editor.select(
834 SelectPhase::Update {
835 position: point_for_position.previous_valid,
836 goal_column: point_for_position.exact_unclipped.column(),
837 scroll_delta,
838 },
839 window,
840 cx,
841 );
842 }
843
844 fn mouse_moved(
845 editor: &mut Editor,
846 event: &MouseMoveEvent,
847 position_map: &PositionMap,
848 window: &mut Window,
849 cx: &mut Context<Editor>,
850 ) {
851 let text_hitbox = &position_map.text_hitbox;
852 let gutter_hitbox = &position_map.gutter_hitbox;
853 let modifiers = event.modifiers;
854 let gutter_hovered = gutter_hitbox.is_hovered(window);
855 editor.set_gutter_hovered(gutter_hovered, cx);
856 editor.mouse_cursor_hidden = false;
857
858 // Don't trigger hover popover if mouse is hovering over context menu
859 if text_hitbox.is_hovered(window) {
860 let point_for_position = position_map.point_for_position(event.position);
861
862 editor.update_hovered_link(
863 point_for_position,
864 &position_map.snapshot,
865 modifiers,
866 window,
867 cx,
868 );
869
870 if let Some(point) = point_for_position.as_valid() {
871 let anchor = position_map
872 .snapshot
873 .buffer_snapshot
874 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
875 hover_at(editor, Some(anchor), window, cx);
876 Self::update_visible_cursor(editor, point, position_map, window, cx);
877 } else {
878 hover_at(editor, None, window, cx);
879 }
880 } else {
881 editor.hide_hovered_link(cx);
882 hover_at(editor, None, window, cx);
883 if gutter_hovered {
884 cx.stop_propagation();
885 }
886 }
887 }
888
889 fn update_visible_cursor(
890 editor: &mut Editor,
891 point: DisplayPoint,
892 position_map: &PositionMap,
893 window: &mut Window,
894 cx: &mut Context<Editor>,
895 ) {
896 let snapshot = &position_map.snapshot;
897 let Some(hub) = editor.collaboration_hub() else {
898 return;
899 };
900 let start = snapshot.display_snapshot.clip_point(
901 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
902 Bias::Left,
903 );
904 let end = snapshot.display_snapshot.clip_point(
905 DisplayPoint::new(
906 point.row(),
907 (point.column() + 1).min(snapshot.line_len(point.row())),
908 ),
909 Bias::Right,
910 );
911
912 let range = snapshot
913 .buffer_snapshot
914 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
915 ..snapshot
916 .buffer_snapshot
917 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
918
919 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
920 return;
921 };
922 let key = crate::HoveredCursor {
923 replica_id: selection.replica_id,
924 selection_id: selection.selection.id,
925 };
926 editor.hovered_cursors.insert(
927 key.clone(),
928 cx.spawn_in(window, |editor, mut cx| async move {
929 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
930 editor
931 .update(&mut cx, |editor, cx| {
932 editor.hovered_cursors.remove(&key);
933 cx.notify();
934 })
935 .ok();
936 }),
937 );
938 cx.notify()
939 }
940
941 #[allow(clippy::too_many_arguments)]
942 fn layout_selections(
943 &self,
944 start_anchor: Anchor,
945 end_anchor: Anchor,
946 local_selections: &[Selection<Point>],
947 snapshot: &EditorSnapshot,
948 start_row: DisplayRow,
949 end_row: DisplayRow,
950 window: &mut Window,
951 cx: &mut App,
952 ) -> (
953 Vec<(PlayerColor, Vec<SelectionLayout>)>,
954 BTreeMap<DisplayRow, bool>,
955 Option<DisplayPoint>,
956 ) {
957 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
958 let mut active_rows = BTreeMap::new();
959 let mut newest_selection_head = None;
960 self.editor.update(cx, |editor, cx| {
961 if editor.show_local_selections {
962 let mut layouts = Vec::new();
963 let newest = editor.selections.newest(cx);
964 for selection in local_selections.iter().cloned() {
965 let is_empty = selection.start == selection.end;
966 let is_newest = selection == newest;
967
968 let layout = SelectionLayout::new(
969 selection,
970 editor.selections.line_mode,
971 editor.cursor_shape,
972 &snapshot.display_snapshot,
973 is_newest,
974 editor.leader_peer_id.is_none(),
975 None,
976 );
977 if is_newest {
978 newest_selection_head = Some(layout.head);
979 }
980
981 for row in cmp::max(layout.active_rows.start.0, start_row.0)
982 ..=cmp::min(layout.active_rows.end.0, end_row.0)
983 {
984 let contains_non_empty_selection =
985 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
986 *contains_non_empty_selection |= !is_empty;
987 }
988 layouts.push(layout);
989 }
990
991 let player = editor.current_user_player_color(cx);
992 selections.push((player, layouts));
993 }
994
995 if let Some(collaboration_hub) = &editor.collaboration_hub {
996 // When following someone, render the local selections in their color.
997 if let Some(leader_id) = editor.leader_peer_id {
998 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
999 {
1000 if let Some(participant_index) = collaboration_hub
1001 .user_participant_indices(cx)
1002 .get(&collaborator.user_id)
1003 {
1004 if let Some((local_selection_style, _)) = selections.first_mut() {
1005 *local_selection_style = cx
1006 .theme()
1007 .players()
1008 .color_for_participant(participant_index.0);
1009 }
1010 }
1011 }
1012 }
1013
1014 let mut remote_selections = HashMap::default();
1015 for selection in snapshot.remote_selections_in_range(
1016 &(start_anchor..end_anchor),
1017 collaboration_hub.as_ref(),
1018 cx,
1019 ) {
1020 let selection_style =
1021 Self::get_participant_color(selection.participant_index, cx);
1022
1023 // Don't re-render the leader's selections, since the local selections
1024 // match theirs.
1025 if Some(selection.peer_id) == editor.leader_peer_id {
1026 continue;
1027 }
1028 let key = HoveredCursor {
1029 replica_id: selection.replica_id,
1030 selection_id: selection.selection.id,
1031 };
1032
1033 let is_shown =
1034 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1035
1036 remote_selections
1037 .entry(selection.replica_id)
1038 .or_insert((selection_style, Vec::new()))
1039 .1
1040 .push(SelectionLayout::new(
1041 selection.selection,
1042 selection.line_mode,
1043 selection.cursor_shape,
1044 &snapshot.display_snapshot,
1045 false,
1046 false,
1047 if is_shown { selection.user_name } else { None },
1048 ));
1049 }
1050
1051 selections.extend(remote_selections.into_values());
1052 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1053 let layouts = snapshot
1054 .buffer_snapshot
1055 .selections_in_range(&(start_anchor..end_anchor), true)
1056 .map(move |(_, line_mode, cursor_shape, selection)| {
1057 SelectionLayout::new(
1058 selection,
1059 line_mode,
1060 cursor_shape,
1061 &snapshot.display_snapshot,
1062 false,
1063 false,
1064 None,
1065 )
1066 })
1067 .collect::<Vec<_>>();
1068 let player = editor.current_user_player_color(cx);
1069 selections.push((player, layouts));
1070 }
1071 });
1072 (selections, active_rows, newest_selection_head)
1073 }
1074
1075 fn collect_cursors(
1076 &self,
1077 snapshot: &EditorSnapshot,
1078 cx: &mut App,
1079 ) -> Vec<(DisplayPoint, Hsla)> {
1080 let editor = self.editor.read(cx);
1081 let mut cursors = Vec::new();
1082 let mut skip_local = false;
1083 let mut add_cursor = |anchor: Anchor, color| {
1084 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1085 };
1086 // Remote cursors
1087 if let Some(collaboration_hub) = &editor.collaboration_hub {
1088 for remote_selection in snapshot.remote_selections_in_range(
1089 &(Anchor::min()..Anchor::max()),
1090 collaboration_hub.deref(),
1091 cx,
1092 ) {
1093 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1094 add_cursor(remote_selection.selection.head(), color.cursor);
1095 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1096 skip_local = true;
1097 }
1098 }
1099 }
1100 // Local cursors
1101 if !skip_local {
1102 let color = cx.theme().players().local().cursor;
1103 editor.selections.disjoint.iter().for_each(|selection| {
1104 add_cursor(selection.head(), color);
1105 });
1106 if let Some(ref selection) = editor.selections.pending_anchor() {
1107 add_cursor(selection.head(), color);
1108 }
1109 }
1110 cursors
1111 }
1112
1113 #[allow(clippy::too_many_arguments)]
1114 fn layout_visible_cursors(
1115 &self,
1116 snapshot: &EditorSnapshot,
1117 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1118 block_start_rows: &HashSet<DisplayRow>,
1119 visible_display_row_range: Range<DisplayRow>,
1120 line_layouts: &[LineWithInvisibles],
1121 text_hitbox: &Hitbox,
1122 content_origin: gpui::Point<Pixels>,
1123 scroll_position: gpui::Point<f32>,
1124 scroll_pixel_position: gpui::Point<Pixels>,
1125 line_height: Pixels,
1126 em_width: Pixels,
1127 em_advance: Pixels,
1128 autoscroll_containing_element: bool,
1129 window: &mut Window,
1130 cx: &mut App,
1131 ) -> Vec<CursorLayout> {
1132 let mut autoscroll_bounds = None;
1133 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1134 let mut cursors = Vec::new();
1135
1136 let show_local_cursors = editor.show_local_cursors(window, cx);
1137
1138 for (player_color, selections) in selections {
1139 for selection in selections {
1140 let cursor_position = selection.head;
1141
1142 let in_range = visible_display_row_range.contains(&cursor_position.row());
1143 if (selection.is_local && !show_local_cursors)
1144 || !in_range
1145 || block_start_rows.contains(&cursor_position.row())
1146 {
1147 continue;
1148 }
1149
1150 let cursor_row_layout = &line_layouts
1151 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1152 let cursor_column = cursor_position.column() as usize;
1153
1154 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1155 let mut block_width =
1156 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1157 if block_width == Pixels::ZERO {
1158 block_width = em_advance;
1159 }
1160 let block_text = if let CursorShape::Block = selection.cursor_shape {
1161 snapshot
1162 .grapheme_at(cursor_position)
1163 .or_else(|| {
1164 if cursor_column == 0 {
1165 snapshot.placeholder_text().and_then(|s| {
1166 s.graphemes(true).next().map(|s| s.to_string().into())
1167 })
1168 } else {
1169 None
1170 }
1171 })
1172 .and_then(|text| {
1173 let len = text.len();
1174
1175 let font = cursor_row_layout
1176 .font_id_for_index(cursor_column)
1177 .and_then(|cursor_font_id| {
1178 window.text_system().get_font_for_id(cursor_font_id)
1179 })
1180 .unwrap_or(self.style.text.font());
1181
1182 // Invert the text color for the block cursor. Ensure that the text
1183 // color is opaque enough to be visible against the background color.
1184 //
1185 // 0.75 is an arbitrary threshold to determine if the background color is
1186 // opaque enough to use as a text color.
1187 //
1188 // TODO: In the future we should ensure themes have a `text_inverse` color.
1189 let color = if cx.theme().colors().editor_background.a < 0.75 {
1190 match cx.theme().appearance {
1191 Appearance::Dark => Hsla::black(),
1192 Appearance::Light => Hsla::white(),
1193 }
1194 } else {
1195 cx.theme().colors().editor_background
1196 };
1197
1198 window
1199 .text_system()
1200 .shape_line(
1201 text,
1202 cursor_row_layout.font_size,
1203 &[TextRun {
1204 len,
1205 font,
1206 color,
1207 background_color: None,
1208 strikethrough: None,
1209 underline: None,
1210 }],
1211 )
1212 .log_err()
1213 })
1214 } else {
1215 None
1216 };
1217
1218 let x = cursor_character_x - scroll_pixel_position.x;
1219 let y = (cursor_position.row().as_f32()
1220 - scroll_pixel_position.y / line_height)
1221 * line_height;
1222 if selection.is_newest {
1223 editor.pixel_position_of_newest_cursor = Some(point(
1224 text_hitbox.origin.x + x + block_width / 2.,
1225 text_hitbox.origin.y + y + line_height / 2.,
1226 ));
1227
1228 if autoscroll_containing_element {
1229 let top = text_hitbox.origin.y
1230 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1231 * line_height;
1232 let left = text_hitbox.origin.x
1233 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1234 .max(0.)
1235 * em_width;
1236
1237 let bottom = text_hitbox.origin.y
1238 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1239 * line_height;
1240 let right = text_hitbox.origin.x
1241 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1242 * em_width;
1243
1244 autoscroll_bounds =
1245 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1246 }
1247 }
1248
1249 let mut cursor = CursorLayout {
1250 color: player_color.cursor,
1251 block_width,
1252 origin: point(x, y),
1253 line_height,
1254 shape: selection.cursor_shape,
1255 block_text,
1256 cursor_name: None,
1257 };
1258 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1259 string: name,
1260 color: self.style.background,
1261 is_top_row: cursor_position.row().0 == 0,
1262 });
1263 cursor.layout(content_origin, cursor_name, window, cx);
1264 cursors.push(cursor);
1265 }
1266 }
1267
1268 cursors
1269 });
1270
1271 if let Some(bounds) = autoscroll_bounds {
1272 window.request_autoscroll(bounds);
1273 }
1274
1275 cursor_layouts
1276 }
1277
1278 fn layout_scrollbars(
1279 &self,
1280 snapshot: &EditorSnapshot,
1281 scrollbar_range_data: ScrollbarRangeData,
1282 scroll_position: gpui::Point<f32>,
1283 non_visible_cursors: bool,
1284 window: &mut Window,
1285 cx: &mut App,
1286 ) -> AxisPair<Option<ScrollbarLayout>> {
1287 let letter_size = scrollbar_range_data.letter_size;
1288 let text_units_per_page = axis_pair(
1289 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1290 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1291 );
1292
1293 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1294 let show_scrollbars = self.editor.read(cx).show_scrollbars
1295 && match scrollbar_settings.show {
1296 ShowScrollbar::Auto => {
1297 let editor = self.editor.read(cx);
1298 let is_singleton = editor.is_singleton(cx);
1299 // Git
1300 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1301 ||
1302 // Buffer Search Results
1303 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1304 ||
1305 // Selected Text Occurrences
1306 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1307 ||
1308 // Selected Symbol Occurrences
1309 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1310 ||
1311 // Diagnostics
1312 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1313 ||
1314 // Cursors out of sight
1315 non_visible_cursors
1316 ||
1317 // Scrollmanager
1318 editor.scroll_manager.scrollbars_visible()
1319 }
1320 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1321 ShowScrollbar::Always => true,
1322 ShowScrollbar::Never => false,
1323 };
1324
1325 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1326
1327 if snapshot.mode != EditorMode::Full {
1328 return axis_pair(None, None);
1329 }
1330
1331 let visible_range = axis_pair(
1332 axes.horizontal
1333 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1334 axes.vertical
1335 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1336 );
1337
1338 // If a drag took place after we started dragging the scrollbar,
1339 // cancel the scrollbar drag.
1340 if cx.has_active_drag() {
1341 self.editor.update(cx, |editor, cx| {
1342 editor
1343 .scroll_manager
1344 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1345 editor
1346 .scroll_manager
1347 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1348 });
1349 }
1350
1351 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1352
1353 let track_bounds = axis_pair(
1354 axes.horizontal.then(|| {
1355 Bounds::from_corners(
1356 point(
1357 text_bounds.bottom_left().x,
1358 text_bounds.bottom_left().y - self.style.scrollbar_width,
1359 ),
1360 point(
1361 text_bounds.bottom_right().x
1362 - if axes.vertical {
1363 self.style.scrollbar_width
1364 } else {
1365 px(0.)
1366 },
1367 text_bounds.bottom_right().y,
1368 ),
1369 )
1370 }),
1371 axes.vertical.then(|| {
1372 Bounds::from_corners(
1373 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1374 text_bounds.bottom_right(),
1375 )
1376 }),
1377 );
1378
1379 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1380 let total_text_units = axis_pair(
1381 Some(scroll_range_size.width / letter_size.width),
1382 Some(scroll_range_size.height / letter_size.height),
1383 );
1384
1385 let thumb_size = axis_pair(
1386 total_text_units
1387 .horizontal
1388 .zip(track_bounds.horizontal)
1389 .and_then(|(total_text_units_x, track_bounds_x)| {
1390 if text_units_per_page.horizontal >= total_text_units_x {
1391 return None;
1392 }
1393 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1394 return Some(track_bounds_x.size.width);
1395 }
1396 let thumb_size = track_bounds_x.size.width
1397 * (text_units_per_page.horizontal / total_text_units_x);
1398 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1399 }),
1400 total_text_units.vertical.zip(track_bounds.vertical).map(
1401 |(total_text_units_y, track_bounds_y)| {
1402 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1403 return track_bounds_y.size.height;
1404 }
1405 let thumb_size = track_bounds_y.size.height
1406 * (text_units_per_page.vertical / total_text_units_y);
1407 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1408 },
1409 ),
1410 );
1411
1412 // NOTE: Space not taken by track bounds divided by text units not on screen
1413 let text_unit_size = axis_pair(
1414 thumb_size
1415 .horizontal
1416 .zip(track_bounds.horizontal)
1417 .zip(total_text_units.horizontal)
1418 .map(|((thumb_size, track_bounds), total_text_units)| {
1419 (track_bounds.size.width - thumb_size)
1420 / (total_text_units - text_units_per_page.horizontal).max(0.)
1421 }),
1422 thumb_size
1423 .vertical
1424 .zip(track_bounds.vertical)
1425 .zip(total_text_units.vertical)
1426 .map(|((thumb_size, track_bounds), total_text_units)| {
1427 (track_bounds.size.height - thumb_size)
1428 / (total_text_units - text_units_per_page.vertical).max(0.)
1429 }),
1430 );
1431
1432 let horizontal_scrollbar = track_bounds
1433 .horizontal
1434 .zip(visible_range.horizontal)
1435 .zip(text_unit_size.horizontal)
1436 .zip(thumb_size.horizontal)
1437 .map(
1438 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1439 hitbox: window.insert_hitbox(track_bounds, false),
1440 visible_range,
1441 text_unit_size,
1442 visible: show_scrollbars,
1443 thumb_size,
1444 axis: Axis::Horizontal,
1445 },
1446 );
1447
1448 let vertical_scrollbar = track_bounds
1449 .vertical
1450 .zip(visible_range.vertical)
1451 .zip(text_unit_size.vertical)
1452 .zip(thumb_size.vertical)
1453 .map(
1454 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1455 hitbox: window.insert_hitbox(track_bounds, false),
1456 visible_range,
1457 text_unit_size,
1458 visible: show_scrollbars,
1459 thumb_size,
1460 axis: Axis::Vertical,
1461 },
1462 );
1463
1464 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1465 }
1466
1467 #[allow(clippy::too_many_arguments)]
1468 fn prepaint_crease_toggles(
1469 &self,
1470 crease_toggles: &mut [Option<AnyElement>],
1471 line_height: Pixels,
1472 gutter_dimensions: &GutterDimensions,
1473 gutter_settings: crate::editor_settings::Gutter,
1474 scroll_pixel_position: gpui::Point<Pixels>,
1475 gutter_hitbox: &Hitbox,
1476 window: &mut Window,
1477 cx: &mut App,
1478 ) {
1479 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1480 if let Some(crease_toggle) = crease_toggle {
1481 debug_assert!(gutter_settings.folds);
1482 let available_space = size(
1483 AvailableSpace::MinContent,
1484 AvailableSpace::Definite(line_height * 0.55),
1485 );
1486 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1487
1488 let position = point(
1489 gutter_dimensions.width - gutter_dimensions.right_padding,
1490 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1491 );
1492 let centering_offset = point(
1493 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1494 (line_height - crease_toggle_size.height) / 2.,
1495 );
1496 let origin = gutter_hitbox.origin + position + centering_offset;
1497 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1498 }
1499 }
1500 }
1501
1502 #[allow(clippy::too_many_arguments)]
1503 fn prepaint_crease_trailers(
1504 &self,
1505 trailers: Vec<Option<AnyElement>>,
1506 lines: &[LineWithInvisibles],
1507 line_height: Pixels,
1508 content_origin: gpui::Point<Pixels>,
1509 scroll_pixel_position: gpui::Point<Pixels>,
1510 em_width: Pixels,
1511 window: &mut Window,
1512 cx: &mut App,
1513 ) -> Vec<Option<CreaseTrailerLayout>> {
1514 trailers
1515 .into_iter()
1516 .enumerate()
1517 .map(|(ix, element)| {
1518 let mut element = element?;
1519 let available_space = size(
1520 AvailableSpace::MinContent,
1521 AvailableSpace::Definite(line_height),
1522 );
1523 let size = element.layout_as_root(available_space, window, cx);
1524
1525 let line = &lines[ix];
1526 let padding = if line.width == Pixels::ZERO {
1527 Pixels::ZERO
1528 } else {
1529 4. * em_width
1530 };
1531 let position = point(
1532 scroll_pixel_position.x + line.width + padding,
1533 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1534 );
1535 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1536 let origin = content_origin + position + centering_offset;
1537 element.prepaint_as_root(origin, available_space, window, cx);
1538 Some(CreaseTrailerLayout {
1539 element,
1540 bounds: Bounds::new(origin, size),
1541 })
1542 })
1543 .collect()
1544 }
1545
1546 // Folds contained in a hunk are ignored apart from shrinking visual size
1547 // If a fold contains any hunks then that fold line is marked as modified
1548 fn layout_gutter_diff_hunks(
1549 &self,
1550 line_height: Pixels,
1551 gutter_hitbox: &Hitbox,
1552 display_rows: Range<DisplayRow>,
1553 snapshot: &EditorSnapshot,
1554 window: &mut Window,
1555 cx: &mut App,
1556 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1557 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1558 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1559
1560 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1561 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1562
1563 for hunk in snapshot
1564 .buffer_snapshot
1565 .diff_hunks_in_range(buffer_start..buffer_end)
1566 {
1567 if folded_buffers.contains(&hunk.buffer_id) {
1568 continue;
1569 }
1570
1571 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1572 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1573
1574 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1575 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1576
1577 let display_hunk = if hunk_display_start.column() != 0 {
1578 DisplayDiffHunk::Folded {
1579 display_row: hunk_display_start.row(),
1580 }
1581 } else {
1582 let mut end_row = hunk_display_end.row();
1583 if hunk_display_end.column() > 0 {
1584 end_row.0 += 1;
1585 }
1586 DisplayDiffHunk::Unfolded {
1587 status: hunk.status(),
1588 diff_base_byte_range: hunk.diff_base_byte_range,
1589 display_row_range: hunk_display_start.row()..end_row,
1590 multi_buffer_range: Anchor::range_in_buffer(
1591 hunk.excerpt_id,
1592 hunk.buffer_id,
1593 hunk.buffer_range,
1594 ),
1595 }
1596 };
1597
1598 display_hunks.push((display_hunk, None));
1599 }
1600
1601 let git_gutter_setting = ProjectSettings::get_global(cx)
1602 .git
1603 .git_gutter
1604 .unwrap_or_default();
1605 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1606 for (hunk, hitbox) in &mut display_hunks {
1607 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1608 let hunk_bounds =
1609 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1610 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1611 }
1612 }
1613 }
1614
1615 display_hunks
1616 }
1617
1618 #[allow(clippy::too_many_arguments)]
1619 fn layout_inline_diagnostics(
1620 &self,
1621 line_layouts: &[LineWithInvisibles],
1622 crease_trailers: &[Option<CreaseTrailerLayout>],
1623 content_origin: gpui::Point<Pixels>,
1624 scroll_pixel_position: gpui::Point<Pixels>,
1625 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1626 start_row: DisplayRow,
1627 end_row: DisplayRow,
1628 line_height: Pixels,
1629 em_width: Pixels,
1630 style: &EditorStyle,
1631 window: &mut Window,
1632 cx: &mut App,
1633 ) -> HashMap<DisplayRow, AnyElement> {
1634 let max_severity = ProjectSettings::get_global(cx)
1635 .diagnostics
1636 .inline
1637 .max_severity
1638 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1639 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1640 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1641 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1642 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1643 });
1644
1645 let active_diagnostics_group = self
1646 .editor
1647 .read(cx)
1648 .active_diagnostics
1649 .as_ref()
1650 .map(|active_diagnostics| active_diagnostics.group_id);
1651
1652 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1653 let snapshot = editor.snapshot(window, cx);
1654 editor
1655 .inline_diagnostics
1656 .iter()
1657 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1658 .filter(|(_, diagnostic)| match active_diagnostics_group {
1659 Some(active_diagnostics_group) => {
1660 // Active diagnostics are all shown in the editor already, no need to display them inline
1661 diagnostic.group_id != active_diagnostics_group
1662 }
1663 None => true,
1664 })
1665 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1666 .skip_while(|(point, _)| point.row() < start_row)
1667 .take_while(|(point, _)| point.row() < end_row)
1668 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1669 acc.entry(point.row())
1670 .or_insert_with(Vec::new)
1671 .push(diagnostic);
1672 acc
1673 })
1674 });
1675
1676 if diagnostics_by_rows.is_empty() {
1677 return HashMap::default();
1678 }
1679
1680 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1681 &DiagnosticSeverity::ERROR => Color::Error,
1682 &DiagnosticSeverity::WARNING => Color::Warning,
1683 &DiagnosticSeverity::INFORMATION => Color::Info,
1684 &DiagnosticSeverity::HINT => Color::Hint,
1685 _ => Color::Error,
1686 };
1687
1688 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1689 let min_x = ProjectSettings::get_global(cx)
1690 .diagnostics
1691 .inline
1692 .min_column as f32
1693 * em_width;
1694
1695 let mut elements = HashMap::default();
1696 for (row, mut diagnostics) in diagnostics_by_rows {
1697 diagnostics.sort_by_key(|diagnostic| {
1698 (
1699 diagnostic.severity,
1700 std::cmp::Reverse(diagnostic.is_primary),
1701 diagnostic.start.row,
1702 diagnostic.start.column,
1703 )
1704 });
1705
1706 let Some(diagnostic_to_render) = diagnostics
1707 .iter()
1708 .find(|diagnostic| diagnostic.is_primary)
1709 .or_else(|| diagnostics.first())
1710 else {
1711 continue;
1712 };
1713
1714 let pos_y = content_origin.y
1715 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1716
1717 let window_ix = row.minus(start_row) as usize;
1718 let pos_x = {
1719 let crease_trailer_layout = &crease_trailers[window_ix];
1720 let line_layout = &line_layouts[window_ix];
1721
1722 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1723 crease_trailer.bounds.right()
1724 } else {
1725 content_origin.x - scroll_pixel_position.x + line_layout.width
1726 };
1727
1728 let padded_line = line_end + padding;
1729 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1730
1731 cmp::max(padded_line, min_start)
1732 };
1733
1734 let behind_inline_completion_popover = inline_completion_popover_origin
1735 .as_ref()
1736 .map_or(false, |inline_completion_popover_origin| {
1737 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1738 });
1739 let opacity = if behind_inline_completion_popover {
1740 0.5
1741 } else {
1742 1.0
1743 };
1744
1745 let mut element = h_flex()
1746 .id(("diagnostic", row.0))
1747 .h(line_height)
1748 .w_full()
1749 .px_1()
1750 .rounded_sm()
1751 .opacity(opacity)
1752 .bg(severity_to_color(&diagnostic_to_render.severity)
1753 .color(cx)
1754 .opacity(0.05))
1755 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1756 .text_sm()
1757 .font_family(style.text.font().family)
1758 .child(diagnostic_to_render.message.clone())
1759 .into_any();
1760
1761 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1762
1763 elements.insert(row, element);
1764 }
1765
1766 elements
1767 }
1768
1769 #[allow(clippy::too_many_arguments)]
1770 fn layout_inline_blame(
1771 &self,
1772 display_row: DisplayRow,
1773 row_info: &RowInfo,
1774 line_layout: &LineWithInvisibles,
1775 crease_trailer: Option<&CreaseTrailerLayout>,
1776 em_width: Pixels,
1777 content_origin: gpui::Point<Pixels>,
1778 scroll_pixel_position: gpui::Point<Pixels>,
1779 line_height: Pixels,
1780 window: &mut Window,
1781 cx: &mut App,
1782 ) -> Option<AnyElement> {
1783 if !self
1784 .editor
1785 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1786 {
1787 return None;
1788 }
1789
1790 let editor = self.editor.read(cx);
1791 let blame = editor.blame.clone()?;
1792 let padding = {
1793 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1794 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1795
1796 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1797
1798 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1799 match &inline_completion.completion {
1800 InlineCompletion::Edit {
1801 display_mode: EditDisplayMode::TabAccept,
1802 ..
1803 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1804 _ => {}
1805 }
1806 }
1807
1808 padding * em_width
1809 };
1810
1811 let blame_entry = blame
1812 .update(cx, |blame, cx| {
1813 blame.blame_for_rows(&[*row_info], cx).next()
1814 })
1815 .flatten()?;
1816
1817 let mut element =
1818 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1819
1820 let start_y = content_origin.y
1821 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1822
1823 let start_x = {
1824 let line_end = if let Some(crease_trailer) = crease_trailer {
1825 crease_trailer.bounds.right()
1826 } else {
1827 content_origin.x - scroll_pixel_position.x + line_layout.width
1828 };
1829
1830 let padded_line_end = line_end + padding;
1831
1832 let min_column_in_pixels = ProjectSettings::get_global(cx)
1833 .git
1834 .inline_blame
1835 .and_then(|settings| settings.min_column)
1836 .map(|col| self.column_pixels(col as usize, window, cx))
1837 .unwrap_or(px(0.));
1838 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1839
1840 cmp::max(padded_line_end, min_start)
1841 };
1842
1843 let absolute_offset = point(start_x, start_y);
1844 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1845
1846 Some(element)
1847 }
1848
1849 #[allow(clippy::too_many_arguments)]
1850 fn layout_blame_entries(
1851 &self,
1852 buffer_rows: &[RowInfo],
1853 em_width: Pixels,
1854 scroll_position: gpui::Point<f32>,
1855 line_height: Pixels,
1856 gutter_hitbox: &Hitbox,
1857 max_width: Option<Pixels>,
1858 window: &mut Window,
1859 cx: &mut App,
1860 ) -> Option<Vec<AnyElement>> {
1861 if !self
1862 .editor
1863 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1864 {
1865 return None;
1866 }
1867
1868 let blame = self.editor.read(cx).blame.clone()?;
1869 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1870 blame.blame_for_rows(buffer_rows, cx).collect()
1871 });
1872
1873 let width = if let Some(max_width) = max_width {
1874 AvailableSpace::Definite(max_width)
1875 } else {
1876 AvailableSpace::MaxContent
1877 };
1878 let scroll_top = scroll_position.y * line_height;
1879 let start_x = em_width;
1880
1881 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1882
1883 let shaped_lines = blamed_rows
1884 .into_iter()
1885 .enumerate()
1886 .flat_map(|(ix, blame_entry)| {
1887 if let Some(blame_entry) = blame_entry {
1888 let mut element = render_blame_entry(
1889 ix,
1890 &blame,
1891 blame_entry,
1892 &self.style,
1893 &mut last_used_color,
1894 self.editor.clone(),
1895 cx,
1896 );
1897
1898 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1899 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1900
1901 element.prepaint_as_root(
1902 absolute_offset,
1903 size(width, AvailableSpace::MinContent),
1904 window,
1905 cx,
1906 );
1907
1908 Some(element)
1909 } else {
1910 None
1911 }
1912 })
1913 .collect();
1914
1915 Some(shaped_lines)
1916 }
1917
1918 #[allow(clippy::too_many_arguments)]
1919 fn layout_indent_guides(
1920 &self,
1921 content_origin: gpui::Point<Pixels>,
1922 text_origin: gpui::Point<Pixels>,
1923 visible_buffer_range: Range<MultiBufferRow>,
1924 scroll_pixel_position: gpui::Point<Pixels>,
1925 line_height: Pixels,
1926 snapshot: &DisplaySnapshot,
1927 window: &mut Window,
1928 cx: &mut App,
1929 ) -> Option<Vec<IndentGuideLayout>> {
1930 let indent_guides = self.editor.update(cx, |editor, cx| {
1931 editor.indent_guides(visible_buffer_range, snapshot, cx)
1932 })?;
1933
1934 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1935 editor
1936 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1937 .unwrap_or_default()
1938 });
1939
1940 Some(
1941 indent_guides
1942 .into_iter()
1943 .enumerate()
1944 .filter_map(|(i, indent_guide)| {
1945 let single_indent_width =
1946 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1947 let total_width = single_indent_width * indent_guide.depth as f32;
1948 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1949 if start_x >= text_origin.x {
1950 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1951 indent_guide.start_row..indent_guide.end_row,
1952 line_height,
1953 snapshot,
1954 );
1955
1956 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1957
1958 Some(IndentGuideLayout {
1959 origin: point(start_x, start_y),
1960 length,
1961 single_indent_width,
1962 depth: indent_guide.depth,
1963 active: active_indent_guide_indices.contains(&i),
1964 settings: indent_guide.settings,
1965 })
1966 } else {
1967 None
1968 }
1969 })
1970 .collect(),
1971 )
1972 }
1973
1974 fn calculate_indent_guide_bounds(
1975 row_range: Range<MultiBufferRow>,
1976 line_height: Pixels,
1977 snapshot: &DisplaySnapshot,
1978 ) -> (gpui::Pixels, gpui::Pixels) {
1979 let start_point = Point::new(row_range.start.0, 0);
1980 let end_point = Point::new(row_range.end.0, 0);
1981
1982 let row_range = start_point.to_display_point(snapshot).row()
1983 ..end_point.to_display_point(snapshot).row();
1984
1985 let mut prev_line = start_point;
1986 prev_line.row = prev_line.row.saturating_sub(1);
1987 let prev_line = prev_line.to_display_point(snapshot).row();
1988
1989 let mut cons_line = end_point;
1990 cons_line.row += 1;
1991 let cons_line = cons_line.to_display_point(snapshot).row();
1992
1993 let mut offset_y = row_range.start.0 as f32 * line_height;
1994 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1995
1996 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1997 if row_range.end == cons_line {
1998 length += line_height;
1999 }
2000
2001 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2002 // we want to extend the indent guide to the start of the block.
2003 let mut block_height = 0;
2004 let mut block_offset = 0;
2005 let mut found_excerpt_header = false;
2006 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2007 if matches!(block, Block::ExcerptBoundary { .. }) {
2008 found_excerpt_header = true;
2009 break;
2010 }
2011 block_offset += block.height();
2012 block_height += block.height();
2013 }
2014 if !found_excerpt_header {
2015 offset_y -= block_offset as f32 * line_height;
2016 length += block_height as f32 * line_height;
2017 }
2018
2019 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2020 // we want to ensure that the indent guide stops before the excerpt header.
2021 let mut block_height = 0;
2022 let mut found_excerpt_header = false;
2023 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2024 if matches!(block, Block::ExcerptBoundary { .. }) {
2025 found_excerpt_header = true;
2026 }
2027 block_height += block.height();
2028 }
2029 if found_excerpt_header {
2030 length -= block_height as f32 * line_height;
2031 }
2032
2033 (offset_y, length)
2034 }
2035
2036 #[allow(clippy::too_many_arguments)]
2037 fn layout_run_indicators(
2038 &self,
2039 line_height: Pixels,
2040 range: Range<DisplayRow>,
2041 scroll_pixel_position: gpui::Point<Pixels>,
2042 gutter_dimensions: &GutterDimensions,
2043 gutter_hitbox: &Hitbox,
2044 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2045 snapshot: &EditorSnapshot,
2046 window: &mut Window,
2047 cx: &mut App,
2048 ) -> Vec<AnyElement> {
2049 self.editor.update(cx, |editor, cx| {
2050 let active_task_indicator_row =
2051 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2052 deployed_from_indicator,
2053 actions,
2054 ..
2055 })) = editor.context_menu.borrow().as_ref()
2056 {
2057 actions
2058 .tasks
2059 .as_ref()
2060 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2061 .or(*deployed_from_indicator)
2062 } else {
2063 None
2064 };
2065
2066 let offset_range_start = snapshot
2067 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
2068 .to_offset(&snapshot.buffer_snapshot);
2069 let offset_range_end = snapshot
2070 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
2071 .to_offset(&snapshot.buffer_snapshot);
2072
2073 editor
2074 .tasks
2075 .iter()
2076 .filter_map(|(_, tasks)| {
2077 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
2078 return None;
2079 }
2080 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
2081 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2082 let buffer_folded = snapshot
2083 .buffer_snapshot
2084 .buffer_line_for_row(multibuffer_row)
2085 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2086 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2087 .unwrap_or(false);
2088 if buffer_folded {
2089 return None;
2090 }
2091
2092 if snapshot.is_line_folded(multibuffer_row) {
2093 // Skip folded indicators, unless it's the starting line of a fold.
2094 if multibuffer_row
2095 .0
2096 .checked_sub(1)
2097 .map_or(false, |previous_row| {
2098 snapshot.is_line_folded(MultiBufferRow(previous_row))
2099 })
2100 {
2101 return None;
2102 }
2103 }
2104 let display_row = multibuffer_point.to_display_point(snapshot).row();
2105 let button = editor.render_run_indicator(
2106 &self.style,
2107 Some(display_row) == active_task_indicator_row,
2108 display_row,
2109 cx,
2110 );
2111
2112 let button = prepaint_gutter_button(
2113 button,
2114 display_row,
2115 line_height,
2116 gutter_dimensions,
2117 scroll_pixel_position,
2118 gutter_hitbox,
2119 rows_with_hunk_bounds,
2120 window,
2121 cx,
2122 );
2123 Some(button)
2124 })
2125 .collect_vec()
2126 })
2127 }
2128
2129 #[allow(clippy::too_many_arguments)]
2130 fn layout_code_actions_indicator(
2131 &self,
2132 line_height: Pixels,
2133 newest_selection_head: DisplayPoint,
2134 scroll_pixel_position: gpui::Point<Pixels>,
2135 gutter_dimensions: &GutterDimensions,
2136 gutter_hitbox: &Hitbox,
2137 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2138 window: &mut Window,
2139 cx: &mut App,
2140 ) -> Option<AnyElement> {
2141 let mut active = false;
2142 let mut button = None;
2143 let row = newest_selection_head.row();
2144 self.editor.update(cx, |editor, cx| {
2145 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2146 deployed_from_indicator,
2147 ..
2148 })) = editor.context_menu.borrow().as_ref()
2149 {
2150 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2151 };
2152 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2153 });
2154
2155 let button = prepaint_gutter_button(
2156 button?,
2157 row,
2158 line_height,
2159 gutter_dimensions,
2160 scroll_pixel_position,
2161 gutter_hitbox,
2162 rows_with_hunk_bounds,
2163 window,
2164 cx,
2165 );
2166
2167 Some(button)
2168 }
2169
2170 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2171 if let Some(index) = participant_index {
2172 cx.theme().players().color_for_participant(index.0)
2173 } else {
2174 cx.theme().players().absent()
2175 }
2176 }
2177
2178 fn calculate_relative_line_numbers(
2179 &self,
2180 snapshot: &EditorSnapshot,
2181 rows: &Range<DisplayRow>,
2182 relative_to: Option<DisplayRow>,
2183 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2184 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2185 let Some(relative_to) = relative_to else {
2186 return relative_rows;
2187 };
2188
2189 let start = rows.start.min(relative_to);
2190 let end = rows.end.max(relative_to);
2191
2192 let buffer_rows = snapshot
2193 .row_infos(start)
2194 .take(1 + end.minus(start) as usize)
2195 .collect::<Vec<_>>();
2196
2197 let head_idx = relative_to.minus(start);
2198 let mut delta = 1;
2199 let mut i = head_idx + 1;
2200 while i < buffer_rows.len() as u32 {
2201 if buffer_rows[i as usize].buffer_row.is_some() {
2202 if rows.contains(&DisplayRow(i + start.0)) {
2203 relative_rows.insert(DisplayRow(i + start.0), delta);
2204 }
2205 delta += 1;
2206 }
2207 i += 1;
2208 }
2209 delta = 1;
2210 i = head_idx.min(buffer_rows.len() as u32 - 1);
2211 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2212 i -= 1;
2213 }
2214
2215 while i > 0 {
2216 i -= 1;
2217 if buffer_rows[i as usize].buffer_row.is_some() {
2218 if rows.contains(&DisplayRow(i + start.0)) {
2219 relative_rows.insert(DisplayRow(i + start.0), delta);
2220 }
2221 delta += 1;
2222 }
2223 }
2224
2225 relative_rows
2226 }
2227
2228 #[allow(clippy::too_many_arguments)]
2229 fn layout_line_numbers(
2230 &self,
2231 gutter_hitbox: Option<&Hitbox>,
2232 gutter_dimensions: GutterDimensions,
2233 line_height: Pixels,
2234 scroll_position: gpui::Point<f32>,
2235 rows: Range<DisplayRow>,
2236 buffer_rows: &[RowInfo],
2237 newest_selection_head: Option<DisplayPoint>,
2238 snapshot: &EditorSnapshot,
2239 window: &mut Window,
2240 cx: &mut App,
2241 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2242 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2243 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2244 });
2245 if !include_line_numbers {
2246 return Arc::default();
2247 }
2248
2249 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2250 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2251 let newest = editor.selections.newest::<Point>(cx);
2252 SelectionLayout::new(
2253 newest,
2254 editor.selections.line_mode,
2255 editor.cursor_shape,
2256 &snapshot.display_snapshot,
2257 true,
2258 true,
2259 None,
2260 )
2261 .head
2262 });
2263 let is_relative = editor.should_use_relative_line_numbers(cx);
2264 (newest_selection_head, is_relative)
2265 });
2266
2267 let relative_to = if is_relative {
2268 Some(newest_selection_head.row())
2269 } else {
2270 None
2271 };
2272 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2273 let mut line_number = String::new();
2274 let line_numbers = buffer_rows
2275 .into_iter()
2276 .enumerate()
2277 .flat_map(|(ix, row_info)| {
2278 let display_row = DisplayRow(rows.start.0 + ix as u32);
2279 line_number.clear();
2280 let non_relative_number = row_info.buffer_row? + 1;
2281 let number = relative_rows
2282 .get(&display_row)
2283 .unwrap_or(&non_relative_number);
2284 write!(&mut line_number, "{number}").unwrap();
2285 if row_info
2286 .diff_status
2287 .is_some_and(|status| status.is_deleted())
2288 {
2289 return None;
2290 }
2291
2292 let color = cx.theme().colors().editor_line_number;
2293 let shaped_line = self
2294 .shape_line_number(SharedString::from(&line_number), color, window)
2295 .log_err()?;
2296 let scroll_top = scroll_position.y * line_height;
2297 let line_origin = gutter_hitbox.map(|hitbox| {
2298 hitbox.origin
2299 + point(
2300 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2301 ix as f32 * line_height - (scroll_top % line_height),
2302 )
2303 });
2304
2305 #[cfg(not(test))]
2306 let hitbox = line_origin.map(|line_origin| {
2307 window.insert_hitbox(
2308 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2309 false,
2310 )
2311 });
2312 #[cfg(test)]
2313 let hitbox = {
2314 let _ = line_origin;
2315 None
2316 };
2317
2318 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2319 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2320 let line_number = LineNumberLayout {
2321 shaped_line,
2322 hitbox,
2323 display_row,
2324 };
2325 Some((multi_buffer_row, line_number))
2326 })
2327 .collect();
2328 Arc::new(line_numbers)
2329 }
2330
2331 fn layout_crease_toggles(
2332 &self,
2333 rows: Range<DisplayRow>,
2334 row_infos: &[RowInfo],
2335 active_rows: &BTreeMap<DisplayRow, bool>,
2336 snapshot: &EditorSnapshot,
2337 window: &mut Window,
2338 cx: &mut App,
2339 ) -> Vec<Option<AnyElement>> {
2340 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2341 && snapshot.mode == EditorMode::Full
2342 && self.editor.read(cx).is_singleton(cx);
2343 if include_fold_statuses {
2344 row_infos
2345 .into_iter()
2346 .enumerate()
2347 .map(|(ix, info)| {
2348 let row = info.multibuffer_row?;
2349 let display_row = DisplayRow(rows.start.0 + ix as u32);
2350 let active = active_rows.contains_key(&display_row);
2351
2352 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2353 })
2354 .collect()
2355 } else {
2356 Vec::new()
2357 }
2358 }
2359
2360 fn layout_crease_trailers(
2361 &self,
2362 buffer_rows: impl IntoIterator<Item = RowInfo>,
2363 snapshot: &EditorSnapshot,
2364 window: &mut Window,
2365 cx: &mut App,
2366 ) -> Vec<Option<AnyElement>> {
2367 buffer_rows
2368 .into_iter()
2369 .map(|row_info| {
2370 if let Some(row) = row_info.multibuffer_row {
2371 snapshot.render_crease_trailer(row, window, cx)
2372 } else {
2373 None
2374 }
2375 })
2376 .collect()
2377 }
2378
2379 fn layout_lines(
2380 rows: Range<DisplayRow>,
2381 snapshot: &EditorSnapshot,
2382 style: &EditorStyle,
2383 editor_width: Pixels,
2384 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2385 window: &mut Window,
2386 cx: &mut App,
2387 ) -> Vec<LineWithInvisibles> {
2388 if rows.start >= rows.end {
2389 return Vec::new();
2390 }
2391
2392 // Show the placeholder when the editor is empty
2393 if snapshot.is_empty() {
2394 let font_size = style.text.font_size.to_pixels(window.rem_size());
2395 let placeholder_color = cx.theme().colors().text_placeholder;
2396 let placeholder_text = snapshot.placeholder_text();
2397
2398 let placeholder_lines = placeholder_text
2399 .as_ref()
2400 .map_or("", AsRef::as_ref)
2401 .split('\n')
2402 .skip(rows.start.0 as usize)
2403 .chain(iter::repeat(""))
2404 .take(rows.len());
2405 placeholder_lines
2406 .filter_map(move |line| {
2407 let run = TextRun {
2408 len: line.len(),
2409 font: style.text.font(),
2410 color: placeholder_color,
2411 background_color: None,
2412 underline: Default::default(),
2413 strikethrough: None,
2414 };
2415 window
2416 .text_system()
2417 .shape_line(line.to_string().into(), font_size, &[run])
2418 .log_err()
2419 })
2420 .map(|line| LineWithInvisibles {
2421 width: line.width,
2422 len: line.len,
2423 fragments: smallvec![LineFragment::Text(line)],
2424 invisibles: Vec::new(),
2425 font_size,
2426 })
2427 .collect()
2428 } else {
2429 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2430 LineWithInvisibles::from_chunks(
2431 chunks,
2432 &style,
2433 MAX_LINE_LEN,
2434 rows.len(),
2435 snapshot.mode,
2436 editor_width,
2437 is_row_soft_wrapped,
2438 window,
2439 cx,
2440 )
2441 }
2442 }
2443
2444 #[allow(clippy::too_many_arguments)]
2445 fn prepaint_lines(
2446 &self,
2447 start_row: DisplayRow,
2448 line_layouts: &mut [LineWithInvisibles],
2449 line_height: Pixels,
2450 scroll_pixel_position: gpui::Point<Pixels>,
2451 content_origin: gpui::Point<Pixels>,
2452 window: &mut Window,
2453 cx: &mut App,
2454 ) -> SmallVec<[AnyElement; 1]> {
2455 let mut line_elements = SmallVec::new();
2456 for (ix, line) in line_layouts.iter_mut().enumerate() {
2457 let row = start_row + DisplayRow(ix as u32);
2458 line.prepaint(
2459 line_height,
2460 scroll_pixel_position,
2461 row,
2462 content_origin,
2463 &mut line_elements,
2464 window,
2465 cx,
2466 );
2467 }
2468 line_elements
2469 }
2470
2471 #[allow(clippy::too_many_arguments)]
2472 fn render_block(
2473 &self,
2474 block: &Block,
2475 available_width: AvailableSpace,
2476 block_id: BlockId,
2477 block_row_start: DisplayRow,
2478 snapshot: &EditorSnapshot,
2479 text_x: Pixels,
2480 rows: &Range<DisplayRow>,
2481 line_layouts: &[LineWithInvisibles],
2482 gutter_dimensions: &GutterDimensions,
2483 line_height: Pixels,
2484 em_width: Pixels,
2485 text_hitbox: &Hitbox,
2486 editor_width: Pixels,
2487 scroll_width: &mut Pixels,
2488 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2489 selections: &[Selection<Point>],
2490 selected_buffer_ids: &Vec<BufferId>,
2491 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2492 sticky_header_excerpt_id: Option<ExcerptId>,
2493 window: &mut Window,
2494 cx: &mut App,
2495 ) -> (AnyElement, Size<Pixels>) {
2496 let mut element = match block {
2497 Block::Custom(block) => {
2498 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2499 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2500 let align_to = block_start.to_display_point(snapshot);
2501 let anchor_x = text_x
2502 + if rows.contains(&align_to.row()) {
2503 line_layouts[align_to.row().minus(rows.start) as usize]
2504 .x_for_index(align_to.column() as usize)
2505 } else {
2506 layout_line(
2507 align_to.row(),
2508 snapshot,
2509 &self.style,
2510 editor_width,
2511 is_row_soft_wrapped,
2512 window,
2513 cx,
2514 )
2515 .x_for_index(align_to.column() as usize)
2516 };
2517
2518 let selected = selections
2519 .binary_search_by(|selection| {
2520 if selection.end <= block_start {
2521 Ordering::Less
2522 } else if selection.start >= block_end {
2523 Ordering::Greater
2524 } else {
2525 Ordering::Equal
2526 }
2527 })
2528 .is_ok();
2529
2530 div()
2531 .size_full()
2532 .child(block.render(&mut BlockContext {
2533 window,
2534 app: cx,
2535 anchor_x,
2536 gutter_dimensions,
2537 line_height,
2538 em_width,
2539 block_id,
2540 selected,
2541 max_width: text_hitbox.size.width.max(*scroll_width),
2542 editor_style: &self.style,
2543 }))
2544 .into_any()
2545 }
2546
2547 Block::FoldedBuffer {
2548 first_excerpt,
2549 prev_excerpt,
2550 show_excerpt_controls,
2551 height,
2552 } => {
2553 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2554 let mut result = v_flex().id(block_id).w_full();
2555
2556 if let Some(prev_excerpt) = prev_excerpt {
2557 if *show_excerpt_controls {
2558 result = result.child(self.render_expand_excerpt_control(
2559 block_id,
2560 ExpandExcerptDirection::Down,
2561 prev_excerpt.id,
2562 gutter_dimensions,
2563 window,
2564 cx,
2565 ));
2566 }
2567 }
2568
2569 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2570 result
2571 .child(self.render_buffer_header(
2572 first_excerpt,
2573 true,
2574 selected,
2575 jump_data,
2576 window,
2577 cx,
2578 ))
2579 .into_any_element()
2580 }
2581
2582 Block::ExcerptBoundary {
2583 prev_excerpt,
2584 next_excerpt,
2585 show_excerpt_controls,
2586 height,
2587 starts_new_buffer,
2588 } => {
2589 let color = cx.theme().colors().clone();
2590 let mut result = v_flex().id(block_id).w_full();
2591
2592 if let Some(prev_excerpt) = prev_excerpt {
2593 if *show_excerpt_controls {
2594 result = result.child(self.render_expand_excerpt_control(
2595 block_id,
2596 ExpandExcerptDirection::Down,
2597 prev_excerpt.id,
2598 gutter_dimensions,
2599 window,
2600 cx,
2601 ));
2602 }
2603 }
2604
2605 if let Some(next_excerpt) = next_excerpt {
2606 let jump_data =
2607 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2608
2609 if *starts_new_buffer {
2610 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2611 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2612
2613 result = result.child(self.render_buffer_header(
2614 next_excerpt,
2615 false,
2616 selected,
2617 jump_data,
2618 window,
2619 cx,
2620 ));
2621 } else {
2622 result = result
2623 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2624 }
2625
2626 if *show_excerpt_controls {
2627 result = result.child(self.render_expand_excerpt_control(
2628 block_id,
2629 ExpandExcerptDirection::Up,
2630 next_excerpt.id,
2631 gutter_dimensions,
2632 window,
2633 cx,
2634 ));
2635 }
2636 } else {
2637 if *show_excerpt_controls {
2638 result = result.child(
2639 h_flex()
2640 .relative()
2641 .child(
2642 div()
2643 .top(px(0.))
2644 .absolute()
2645 .w_full()
2646 .h_px()
2647 .bg(color.border_variant),
2648 )
2649 .child(self.render_expand_excerpt_control(
2650 block_id,
2651 ExpandExcerptDirection::Up,
2652 next_excerpt.id,
2653 gutter_dimensions,
2654 window,
2655 cx,
2656 )),
2657 );
2658 }
2659 };
2660 }
2661
2662 result.into_any()
2663 }
2664 };
2665
2666 // Discover the element's content height, then round up to the nearest multiple of line height.
2667 let preliminary_size = element.layout_as_root(
2668 size(available_width, AvailableSpace::MinContent),
2669 window,
2670 cx,
2671 );
2672 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2673 let final_size = if preliminary_size.height == quantized_height {
2674 preliminary_size
2675 } else {
2676 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2677 };
2678
2679 if let BlockId::Custom(custom_block_id) = block_id {
2680 if block.height() > 0 {
2681 let element_height_in_lines =
2682 ((final_size.height / line_height).ceil() as u32).max(1);
2683 if element_height_in_lines != block.height() {
2684 resized_blocks.insert(custom_block_id, element_height_in_lines);
2685 }
2686 }
2687 }
2688
2689 (element, final_size)
2690 }
2691
2692 fn render_buffer_header(
2693 &self,
2694 for_excerpt: &ExcerptInfo,
2695 is_folded: bool,
2696 is_selected: bool,
2697 jump_data: JumpData,
2698 window: &mut Window,
2699 cx: &mut App,
2700 ) -> Div {
2701 let include_root = self
2702 .editor
2703 .read(cx)
2704 .project
2705 .as_ref()
2706 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2707 .unwrap_or_default();
2708 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2709 let filename = path
2710 .as_ref()
2711 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2712 let parent_path = path.as_ref().and_then(|path| {
2713 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2714 });
2715 let focus_handle = self.editor.focus_handle(cx);
2716 let colors = cx.theme().colors();
2717
2718 div()
2719 .px_2()
2720 .pt_2()
2721 .w_full()
2722 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2723 .child(
2724 h_flex()
2725 .size_full()
2726 .gap_2()
2727 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2728 .pl_0p5()
2729 .pr_5()
2730 .rounded_md()
2731 .shadow_md()
2732 .border_1()
2733 .map(|div| {
2734 let border_color = if is_selected && is_folded {
2735 colors.border_focused
2736 } else {
2737 colors.border
2738 };
2739 div.border_color(border_color)
2740 })
2741 .bg(colors.editor_subheader_background)
2742 .hover(|style| style.bg(colors.element_hover))
2743 .map(|header| {
2744 let editor = self.editor.clone();
2745 let buffer_id = for_excerpt.buffer_id;
2746 let toggle_chevron_icon =
2747 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2748 header.child(
2749 div()
2750 .hover(|style| style.bg(colors.element_selected))
2751 .rounded_sm()
2752 .child(
2753 ButtonLike::new("toggle-buffer-fold")
2754 .style(ui::ButtonStyle::Transparent)
2755 .size(ButtonSize::Large)
2756 .width(px(30.).into())
2757 .children(toggle_chevron_icon)
2758 .tooltip({
2759 let focus_handle = focus_handle.clone();
2760 move |window, cx| {
2761 Tooltip::for_action_in(
2762 "Toggle Excerpt Fold",
2763 &ToggleFold,
2764 &focus_handle,
2765 window,
2766 cx,
2767 )
2768 }
2769 })
2770 .on_click(move |_, _, cx| {
2771 if is_folded {
2772 editor.update(cx, |editor, cx| {
2773 editor.unfold_buffer(buffer_id, cx);
2774 });
2775 } else {
2776 editor.update(cx, |editor, cx| {
2777 editor.fold_buffer(buffer_id, cx);
2778 });
2779 }
2780 }),
2781 ),
2782 )
2783 })
2784 .children(
2785 self.editor
2786 .read(cx)
2787 .addons
2788 .values()
2789 .filter_map(|addon| {
2790 addon.render_buffer_header_controls(for_excerpt, window, cx)
2791 })
2792 .take(1),
2793 )
2794 .child(
2795 h_flex()
2796 .cursor_pointer()
2797 .id("path header block")
2798 .size_full()
2799 .justify_between()
2800 .child(
2801 h_flex()
2802 .gap_2()
2803 .child(
2804 filename
2805 .map(SharedString::from)
2806 .unwrap_or_else(|| "untitled".into()),
2807 )
2808 .when_some(parent_path, |then, path| {
2809 then.child(div().child(path).text_color(colors.text_muted))
2810 }),
2811 )
2812 .when(is_selected, |el| {
2813 el.child(
2814 h_flex()
2815 .id("jump-to-file-button")
2816 .gap_2p5()
2817 .child(Label::new("Jump To File"))
2818 .children(
2819 KeyBinding::for_action_in(
2820 &OpenExcerpts,
2821 &focus_handle,
2822 window,
2823 cx,
2824 )
2825 .map(|binding| binding.into_any_element()),
2826 ),
2827 )
2828 })
2829 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2830 .on_click(window.listener_for(&self.editor, {
2831 move |editor, e: &ClickEvent, window, cx| {
2832 editor.open_excerpts_common(
2833 Some(jump_data.clone()),
2834 e.down.modifiers.secondary(),
2835 window,
2836 cx,
2837 );
2838 }
2839 })),
2840 ),
2841 )
2842 }
2843
2844 fn render_expand_excerpt_control(
2845 &self,
2846 block_id: BlockId,
2847 direction: ExpandExcerptDirection,
2848 excerpt_id: ExcerptId,
2849 gutter_dimensions: &GutterDimensions,
2850 window: &Window,
2851 cx: &mut App,
2852 ) -> impl IntoElement {
2853 let color = cx.theme().colors().clone();
2854 let hover_color = color.border_variant.opacity(0.5);
2855 let focus_handle = self.editor.focus_handle(cx).clone();
2856
2857 let icon_offset =
2858 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2859 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2860 let group_name = if direction == ExpandExcerptDirection::Down {
2861 "expand-down"
2862 } else {
2863 "expand-up"
2864 };
2865
2866 let expand_area = |id: SharedString| {
2867 h_flex()
2868 .id(id)
2869 .w_full()
2870 .cursor_pointer()
2871 .block_mouse_down()
2872 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2873 .hover(|style| style.bg(hover_color))
2874 .tooltip({
2875 let focus_handle = focus_handle.clone();
2876 move |window, cx| {
2877 Tooltip::for_action_in(
2878 "Expand Excerpt",
2879 &ExpandExcerpts { lines: 0 },
2880 &focus_handle,
2881 window,
2882 cx,
2883 )
2884 }
2885 })
2886 };
2887
2888 expand_area(
2889 format!(
2890 "block-{}-{}",
2891 block_id,
2892 if direction == ExpandExcerptDirection::Down {
2893 "down"
2894 } else {
2895 "up"
2896 }
2897 )
2898 .into(),
2899 )
2900 .group(group_name)
2901 .child(
2902 h_flex()
2903 .w(icon_offset)
2904 .h(header_height)
2905 .flex_none()
2906 .justify_end()
2907 .child(
2908 ButtonLike::new("expand-icon")
2909 .style(ButtonStyle::Transparent)
2910 .child(
2911 svg()
2912 .path(if direction == ExpandExcerptDirection::Down {
2913 IconName::ArrowDownFromLine.path()
2914 } else {
2915 IconName::ArrowUpFromLine.path()
2916 })
2917 .size(IconSize::XSmall.rems())
2918 .text_color(cx.theme().colors().editor_line_number)
2919 .group_hover(group_name, |style| {
2920 style.text_color(cx.theme().colors().editor_active_line_number)
2921 }),
2922 ),
2923 ),
2924 )
2925 .on_click(window.listener_for(&self.editor, {
2926 move |editor, _, _, cx| {
2927 editor.expand_excerpt(excerpt_id, direction, cx);
2928 cx.stop_propagation();
2929 }
2930 }))
2931 }
2932
2933 #[allow(clippy::too_many_arguments)]
2934 fn render_blocks(
2935 &self,
2936 rows: Range<DisplayRow>,
2937 snapshot: &EditorSnapshot,
2938 hitbox: &Hitbox,
2939 text_hitbox: &Hitbox,
2940 editor_width: Pixels,
2941 scroll_width: &mut Pixels,
2942 gutter_dimensions: &GutterDimensions,
2943 em_width: Pixels,
2944 text_x: Pixels,
2945 line_height: Pixels,
2946 line_layouts: &[LineWithInvisibles],
2947 selections: &[Selection<Point>],
2948 selected_buffer_ids: &Vec<BufferId>,
2949 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2950 sticky_header_excerpt_id: Option<ExcerptId>,
2951 window: &mut Window,
2952 cx: &mut App,
2953 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2954 let (fixed_blocks, non_fixed_blocks) = snapshot
2955 .blocks_in_range(rows.clone())
2956 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2957
2958 let mut focused_block = self
2959 .editor
2960 .update(cx, |editor, _| editor.take_focused_block());
2961 let mut fixed_block_max_width = Pixels::ZERO;
2962 let mut blocks = Vec::new();
2963 let mut resized_blocks = HashMap::default();
2964
2965 for (row, block) in fixed_blocks {
2966 let block_id = block.id();
2967
2968 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2969 focused_block = None;
2970 }
2971
2972 let (element, element_size) = self.render_block(
2973 block,
2974 AvailableSpace::MinContent,
2975 block_id,
2976 row,
2977 snapshot,
2978 text_x,
2979 &rows,
2980 line_layouts,
2981 gutter_dimensions,
2982 line_height,
2983 em_width,
2984 text_hitbox,
2985 editor_width,
2986 scroll_width,
2987 &mut resized_blocks,
2988 selections,
2989 selected_buffer_ids,
2990 is_row_soft_wrapped,
2991 sticky_header_excerpt_id,
2992 window,
2993 cx,
2994 );
2995 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2996 blocks.push(BlockLayout {
2997 id: block_id,
2998 row: Some(row),
2999 element,
3000 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3001 style: BlockStyle::Fixed,
3002 });
3003 }
3004
3005 for (row, block) in non_fixed_blocks {
3006 let style = block.style();
3007 let width = match style {
3008 BlockStyle::Sticky => hitbox.size.width,
3009 BlockStyle::Flex => hitbox
3010 .size
3011 .width
3012 .max(fixed_block_max_width)
3013 .max(gutter_dimensions.width + *scroll_width),
3014 BlockStyle::Fixed => unreachable!(),
3015 };
3016 let block_id = block.id();
3017
3018 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3019 focused_block = None;
3020 }
3021
3022 let (element, element_size) = self.render_block(
3023 block,
3024 width.into(),
3025 block_id,
3026 row,
3027 snapshot,
3028 text_x,
3029 &rows,
3030 line_layouts,
3031 gutter_dimensions,
3032 line_height,
3033 em_width,
3034 text_hitbox,
3035 editor_width,
3036 scroll_width,
3037 &mut resized_blocks,
3038 selections,
3039 selected_buffer_ids,
3040 is_row_soft_wrapped,
3041 sticky_header_excerpt_id,
3042 window,
3043 cx,
3044 );
3045
3046 blocks.push(BlockLayout {
3047 id: block_id,
3048 row: Some(row),
3049 element,
3050 available_space: size(width.into(), element_size.height.into()),
3051 style,
3052 });
3053 }
3054
3055 if let Some(focused_block) = focused_block {
3056 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3057 if focus_handle.is_focused(window) {
3058 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3059 let style = block.style();
3060 let width = match style {
3061 BlockStyle::Fixed => AvailableSpace::MinContent,
3062 BlockStyle::Flex => AvailableSpace::Definite(
3063 hitbox
3064 .size
3065 .width
3066 .max(fixed_block_max_width)
3067 .max(gutter_dimensions.width + *scroll_width),
3068 ),
3069 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3070 };
3071
3072 let (element, element_size) = self.render_block(
3073 &block,
3074 width,
3075 focused_block.id,
3076 rows.end,
3077 snapshot,
3078 text_x,
3079 &rows,
3080 line_layouts,
3081 gutter_dimensions,
3082 line_height,
3083 em_width,
3084 text_hitbox,
3085 editor_width,
3086 scroll_width,
3087 &mut resized_blocks,
3088 selections,
3089 selected_buffer_ids,
3090 is_row_soft_wrapped,
3091 sticky_header_excerpt_id,
3092 window,
3093 cx,
3094 );
3095
3096 blocks.push(BlockLayout {
3097 id: block.id(),
3098 row: None,
3099 element,
3100 available_space: size(width, element_size.height.into()),
3101 style,
3102 });
3103 }
3104 }
3105 }
3106 }
3107
3108 if resized_blocks.is_empty() {
3109 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3110 Ok(blocks)
3111 } else {
3112 Err(resized_blocks)
3113 }
3114 }
3115
3116 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3117 /// a restart of rendering for the editor based on the new sizes.
3118 #[allow(clippy::too_many_arguments)]
3119 fn layout_blocks(
3120 &self,
3121 blocks: &mut Vec<BlockLayout>,
3122 block_starts: &mut HashSet<DisplayRow>,
3123 hitbox: &Hitbox,
3124 line_height: Pixels,
3125 scroll_pixel_position: gpui::Point<Pixels>,
3126 window: &mut Window,
3127 cx: &mut App,
3128 ) {
3129 for block in blocks {
3130 let mut origin = if let Some(row) = block.row {
3131 block_starts.insert(row);
3132 hitbox.origin
3133 + point(
3134 Pixels::ZERO,
3135 row.as_f32() * line_height - scroll_pixel_position.y,
3136 )
3137 } else {
3138 // Position the block outside the visible area
3139 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3140 };
3141
3142 if !matches!(block.style, BlockStyle::Sticky) {
3143 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3144 }
3145
3146 let focus_handle =
3147 block
3148 .element
3149 .prepaint_as_root(origin, block.available_space, window, cx);
3150
3151 if let Some(focus_handle) = focus_handle {
3152 self.editor.update(cx, |editor, _cx| {
3153 editor.set_focused_block(FocusedBlock {
3154 id: block.id,
3155 focus_handle: focus_handle.downgrade(),
3156 });
3157 });
3158 }
3159 }
3160 }
3161
3162 #[allow(clippy::too_many_arguments)]
3163 fn layout_sticky_buffer_header(
3164 &self,
3165 StickyHeaderExcerpt {
3166 excerpt,
3167 next_excerpt_controls_present,
3168 next_buffer_row,
3169 }: StickyHeaderExcerpt<'_>,
3170 scroll_position: f32,
3171 line_height: Pixels,
3172 snapshot: &EditorSnapshot,
3173 hitbox: &Hitbox,
3174 selected_buffer_ids: &Vec<BufferId>,
3175 window: &mut Window,
3176 cx: &mut App,
3177 ) -> AnyElement {
3178 let jump_data = header_jump_data(
3179 snapshot,
3180 DisplayRow(scroll_position as u32),
3181 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3182 excerpt,
3183 );
3184
3185 let editor_bg_color = cx.theme().colors().editor_background;
3186
3187 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3188
3189 let mut header = v_flex()
3190 .relative()
3191 .child(
3192 div()
3193 .w(hitbox.bounds.size.width)
3194 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3195 .bg(linear_gradient(
3196 0.,
3197 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3198 linear_color_stop(editor_bg_color, 0.6),
3199 ))
3200 .absolute()
3201 .top_0(),
3202 )
3203 .child(
3204 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3205 .into_any_element(),
3206 )
3207 .into_any_element();
3208
3209 let mut origin = hitbox.origin;
3210
3211 if let Some(next_buffer_row) = next_buffer_row {
3212 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3213
3214 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3215
3216 if next_excerpt_controls_present {
3217 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3218 }
3219
3220 let offset = scroll_position - max_row as f32;
3221
3222 if offset > 0.0 {
3223 origin.y -= Pixels(offset) * line_height;
3224 }
3225 }
3226
3227 let size = size(
3228 AvailableSpace::Definite(hitbox.size.width),
3229 AvailableSpace::MinContent,
3230 );
3231
3232 header.prepaint_as_root(origin, size, window, cx);
3233
3234 header
3235 }
3236
3237 #[allow(clippy::too_many_arguments)]
3238 fn layout_cursor_popovers(
3239 &self,
3240 line_height: Pixels,
3241 text_hitbox: &Hitbox,
3242 content_origin: gpui::Point<Pixels>,
3243 start_row: DisplayRow,
3244 scroll_pixel_position: gpui::Point<Pixels>,
3245 line_layouts: &[LineWithInvisibles],
3246 cursor: DisplayPoint,
3247 cursor_point: Point,
3248 style: &EditorStyle,
3249 window: &mut Window,
3250 cx: &mut App,
3251 ) {
3252 let mut min_menu_height = Pixels::ZERO;
3253 let mut max_menu_height = Pixels::ZERO;
3254 let mut height_above_menu = Pixels::ZERO;
3255 let height_below_menu = Pixels::ZERO;
3256 let mut edit_prediction_popover_visible = false;
3257 let mut context_menu_visible = false;
3258
3259 {
3260 let editor = self.editor.read(cx);
3261 if editor
3262 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3263 {
3264 height_above_menu +=
3265 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3266 edit_prediction_popover_visible = true;
3267 }
3268
3269 if editor.context_menu_visible() {
3270 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3271 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3272 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3273 context_menu_visible = true;
3274 }
3275 }
3276 }
3277
3278 let visible = edit_prediction_popover_visible || context_menu_visible;
3279 if !visible {
3280 return;
3281 }
3282
3283 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3284 let target_position = content_origin
3285 + gpui::Point {
3286 x: cmp::max(
3287 px(0.),
3288 cursor_row_layout.x_for_index(cursor.column() as usize)
3289 - scroll_pixel_position.x,
3290 ),
3291 y: cmp::max(
3292 px(0.),
3293 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3294 ),
3295 };
3296
3297 let viewport_bounds =
3298 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3299 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3300 ..Default::default()
3301 });
3302
3303 let min_height = height_above_menu + min_menu_height + height_below_menu;
3304 let max_height = height_above_menu + max_menu_height + height_below_menu;
3305 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3306 target_position,
3307 line_height,
3308 min_height,
3309 max_height,
3310 text_hitbox,
3311 viewport_bounds,
3312 window,
3313 cx,
3314 |height, max_width_for_stable_x, y_flipped, window, cx| {
3315 // First layout the menu to get its size - others can be at least this wide.
3316 let context_menu = if context_menu_visible {
3317 let menu_height = if y_flipped {
3318 height - height_below_menu
3319 } else {
3320 height - height_above_menu
3321 };
3322 let mut element = self
3323 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3324 .expect("Visible context menu should always render.");
3325 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3326 Some((CursorPopoverType::CodeContextMenu, element, size))
3327 } else {
3328 None
3329 };
3330 let min_width = context_menu
3331 .as_ref()
3332 .map_or(px(0.), |(_, _, size)| size.width);
3333 let max_width = max_width_for_stable_x.max(
3334 context_menu
3335 .as_ref()
3336 .map_or(px(0.), |(_, _, size)| size.width),
3337 );
3338
3339 let edit_prediction = if edit_prediction_popover_visible {
3340 self.editor.update(cx, move |editor, cx| {
3341 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3342 let mut element = editor.render_edit_prediction_cursor_popover(
3343 min_width,
3344 max_width,
3345 cursor_point,
3346 style,
3347 accept_binding.keystroke(),
3348 window,
3349 cx,
3350 )?;
3351 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3352 Some((CursorPopoverType::EditPrediction, element, size))
3353 })
3354 } else {
3355 None
3356 };
3357 vec![edit_prediction, context_menu]
3358 .into_iter()
3359 .flatten()
3360 .collect::<Vec<_>>()
3361 },
3362 ) else {
3363 return;
3364 };
3365
3366 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3367 .iter()
3368 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3369 else {
3370 return;
3371 };
3372 let last_ix = laid_out_popovers.len() - 1;
3373 let menu_is_last = menu_ix == last_ix;
3374 let first_popover_bounds = laid_out_popovers[0].1;
3375 let last_popover_bounds = laid_out_popovers[last_ix].1;
3376
3377 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3378 // right, and otherwise it goes below or to the right.
3379 let mut target_bounds = Bounds::from_corners(
3380 first_popover_bounds.origin,
3381 last_popover_bounds.bottom_right(),
3382 );
3383 target_bounds.size.width = menu_bounds.size.width;
3384
3385 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3386 // based on this is preferred for layout stability.
3387 let mut max_target_bounds = target_bounds;
3388 max_target_bounds.size.height = max_height;
3389 if y_flipped {
3390 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3391 }
3392
3393 // Add spacing around `target_bounds` and `max_target_bounds`.
3394 let mut extend_amount = Edges::all(MENU_GAP);
3395 if y_flipped {
3396 extend_amount.bottom = line_height;
3397 } else {
3398 extend_amount.top = line_height;
3399 }
3400 let target_bounds = target_bounds.extend(extend_amount);
3401 let max_target_bounds = max_target_bounds.extend(extend_amount);
3402
3403 let must_place_above_or_below =
3404 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3405 laid_out_popovers[menu_ix + 1..]
3406 .iter()
3407 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3408 } else {
3409 false
3410 };
3411
3412 self.layout_context_menu_aside(
3413 y_flipped,
3414 *menu_bounds,
3415 target_bounds,
3416 max_target_bounds,
3417 max_menu_height,
3418 must_place_above_or_below,
3419 text_hitbox,
3420 viewport_bounds,
3421 window,
3422 cx,
3423 );
3424 }
3425
3426 #[allow(clippy::too_many_arguments)]
3427 fn layout_gutter_menu(
3428 &self,
3429 line_height: Pixels,
3430 text_hitbox: &Hitbox,
3431 content_origin: gpui::Point<Pixels>,
3432 scroll_pixel_position: gpui::Point<Pixels>,
3433 gutter_overshoot: Pixels,
3434 window: &mut Window,
3435 cx: &mut App,
3436 ) {
3437 let editor = self.editor.read(cx);
3438 if !editor.context_menu_visible() {
3439 return;
3440 }
3441 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3442 editor.context_menu_origin()
3443 else {
3444 return;
3445 };
3446 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3447 // indicator than just a plain first column of the text field.
3448 let target_position = content_origin
3449 + gpui::Point {
3450 x: -gutter_overshoot,
3451 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3452 };
3453 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3454 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3455 let viewport_bounds =
3456 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3457 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3458 ..Default::default()
3459 });
3460 self.layout_popovers_above_or_below_line(
3461 target_position,
3462 line_height,
3463 min_height,
3464 max_height,
3465 text_hitbox,
3466 viewport_bounds,
3467 window,
3468 cx,
3469 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3470 let mut element = self
3471 .render_context_menu(line_height, height, y_flipped, window, cx)
3472 .expect("Visible context menu should always render.");
3473 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3474 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3475 },
3476 );
3477 }
3478
3479 #[allow(clippy::too_many_arguments)]
3480 fn layout_popovers_above_or_below_line(
3481 &self,
3482 target_position: gpui::Point<Pixels>,
3483 line_height: Pixels,
3484 min_height: Pixels,
3485 max_height: Pixels,
3486 text_hitbox: &Hitbox,
3487 viewport_bounds: Bounds<Pixels>,
3488 window: &mut Window,
3489 cx: &mut App,
3490 make_sized_popovers: impl FnOnce(
3491 Pixels,
3492 Pixels,
3493 bool,
3494 &mut Window,
3495 &mut App,
3496 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3497 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3498 let text_style = TextStyleRefinement {
3499 line_height: Some(DefiniteLength::Fraction(
3500 BufferLineHeight::Comfortable.value(),
3501 )),
3502 ..Default::default()
3503 };
3504 window.with_text_style(Some(text_style), |window| {
3505 // If the max height won't fit below and there is more space above, put it above the line.
3506 let bottom_y_when_flipped = target_position.y - line_height;
3507 let available_above = bottom_y_when_flipped - text_hitbox.top();
3508 let available_below = text_hitbox.bottom() - target_position.y;
3509 let y_overflows_below = max_height > available_below;
3510 let mut y_flipped = y_overflows_below && available_above > available_below;
3511 let mut height = cmp::min(
3512 max_height,
3513 if y_flipped {
3514 available_above
3515 } else {
3516 available_below
3517 },
3518 );
3519
3520 // If the min height doesn't fit within text bounds, instead fit within the window.
3521 if height < min_height {
3522 let available_above = bottom_y_when_flipped;
3523 let available_below = viewport_bounds.bottom() - target_position.y;
3524 if available_below > min_height {
3525 y_flipped = false;
3526 height = min_height;
3527 } else if available_above > min_height {
3528 y_flipped = true;
3529 height = min_height;
3530 } else if available_above > available_below {
3531 y_flipped = true;
3532 height = available_above;
3533 } else {
3534 y_flipped = false;
3535 height = available_below;
3536 }
3537 }
3538
3539 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3540
3541 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3542 // for very narrow windows.
3543 let popovers =
3544 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3545 if popovers.is_empty() {
3546 return None;
3547 }
3548
3549 let max_width = popovers
3550 .iter()
3551 .map(|(_, _, size)| size.width)
3552 .max()
3553 .unwrap_or_default();
3554
3555 let mut current_position = gpui::Point {
3556 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3557 // overflow. Include space for the scrollbar.
3558 x: target_position
3559 .x
3560 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3561 y: if y_flipped {
3562 bottom_y_when_flipped
3563 } else {
3564 target_position.y
3565 },
3566 };
3567
3568 let mut laid_out_popovers = popovers
3569 .into_iter()
3570 .map(|(popover_type, element, size)| {
3571 if y_flipped {
3572 current_position.y -= size.height;
3573 }
3574 let position = current_position;
3575 window.defer_draw(element, current_position, 1);
3576 if !y_flipped {
3577 current_position.y += size.height + MENU_GAP;
3578 } else {
3579 current_position.y -= MENU_GAP;
3580 }
3581 (popover_type, Bounds::new(position, size))
3582 })
3583 .collect::<Vec<_>>();
3584
3585 if y_flipped {
3586 laid_out_popovers.reverse();
3587 }
3588
3589 Some((laid_out_popovers, y_flipped))
3590 })
3591 }
3592
3593 #[allow(clippy::too_many_arguments)]
3594 fn layout_context_menu_aside(
3595 &self,
3596 y_flipped: bool,
3597 menu_bounds: Bounds<Pixels>,
3598 target_bounds: Bounds<Pixels>,
3599 max_target_bounds: Bounds<Pixels>,
3600 max_height: Pixels,
3601 must_place_above_or_below: bool,
3602 text_hitbox: &Hitbox,
3603 viewport_bounds: Bounds<Pixels>,
3604 window: &mut Window,
3605 cx: &mut App,
3606 ) {
3607 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3608 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3609 && !must_place_above_or_below
3610 {
3611 let max_width = cmp::min(
3612 available_within_viewport.right - px(1.),
3613 MENU_ASIDE_MAX_WIDTH,
3614 );
3615 let Some(mut aside) = self.render_context_menu_aside(
3616 size(max_width, max_height - POPOVER_Y_PADDING),
3617 window,
3618 cx,
3619 ) else {
3620 return;
3621 };
3622 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3623 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3624 Some((aside, right_position))
3625 } else {
3626 let max_size = size(
3627 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3628 // won't be needed here.
3629 cmp::min(
3630 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3631 viewport_bounds.right(),
3632 ),
3633 cmp::min(
3634 max_height,
3635 cmp::max(
3636 available_within_viewport.top,
3637 available_within_viewport.bottom,
3638 ),
3639 ) - POPOVER_Y_PADDING,
3640 );
3641 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3642 return;
3643 };
3644 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3645
3646 let top_position = point(
3647 menu_bounds.origin.x,
3648 target_bounds.top() - actual_size.height,
3649 );
3650 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3651
3652 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3653 // Prefer to fit on the same side of the line as the menu, then on the other side of
3654 // the line.
3655 if !y_flipped && wanted.height < available.bottom {
3656 Some(bottom_position)
3657 } else if !y_flipped && wanted.height < available.top {
3658 Some(top_position)
3659 } else if y_flipped && wanted.height < available.top {
3660 Some(top_position)
3661 } else if y_flipped && wanted.height < available.bottom {
3662 Some(bottom_position)
3663 } else {
3664 None
3665 }
3666 };
3667
3668 // Prefer choosing a direction using max sizes rather than actual size for stability.
3669 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3670 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3671 let aside_position = fit_within(available_within_text, wanted)
3672 // Fallback: fit max size in window.
3673 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3674 // Fallback: fit actual size in window.
3675 .or_else(|| fit_within(available_within_viewport, actual_size));
3676
3677 aside_position.map(|position| (aside, position))
3678 };
3679
3680 // Skip drawing if it doesn't fit anywhere.
3681 if let Some((aside, position)) = positioned_aside {
3682 window.defer_draw(aside, position, 2);
3683 }
3684 }
3685
3686 fn render_context_menu(
3687 &self,
3688 line_height: Pixels,
3689 height: Pixels,
3690 y_flipped: bool,
3691 window: &mut Window,
3692 cx: &mut App,
3693 ) -> Option<AnyElement> {
3694 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3695 self.editor.update(cx, |editor, cx| {
3696 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3697 })
3698 }
3699
3700 fn render_context_menu_aside(
3701 &self,
3702 max_size: Size<Pixels>,
3703 window: &mut Window,
3704 cx: &mut App,
3705 ) -> Option<AnyElement> {
3706 if max_size.width < px(100.) || max_size.height < px(12.) {
3707 None
3708 } else {
3709 self.editor.update(cx, |editor, cx| {
3710 editor.render_context_menu_aside(max_size, window, cx)
3711 })
3712 }
3713 }
3714
3715 #[allow(clippy::too_many_arguments)]
3716 fn layout_edit_prediction_popover(
3717 &self,
3718 text_bounds: &Bounds<Pixels>,
3719 content_origin: gpui::Point<Pixels>,
3720 editor_snapshot: &EditorSnapshot,
3721 visible_row_range: Range<DisplayRow>,
3722 scroll_top: f32,
3723 scroll_bottom: f32,
3724 line_layouts: &[LineWithInvisibles],
3725 line_height: Pixels,
3726 scroll_pixel_position: gpui::Point<Pixels>,
3727 newest_selection_head: Option<DisplayPoint>,
3728 editor_width: Pixels,
3729 style: &EditorStyle,
3730 window: &mut Window,
3731 cx: &mut App,
3732 ) -> Option<(AnyElement, gpui::Point<Pixels>)> {
3733 const PADDING_X: Pixels = Pixels(24.);
3734 const PADDING_Y: Pixels = Pixels(2.);
3735
3736 let editor = self.editor.read(cx);
3737 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3738
3739 if editor.edit_prediction_visible_in_cursor_popover(true) {
3740 return None;
3741 }
3742
3743 // Adjust text origin for horizontal scrolling (in some cases here)
3744 let start_point = content_origin - gpui::Point::new(scroll_pixel_position.x, Pixels(0.0));
3745
3746 // Clamp left offset after extreme scrollings
3747 let clamp_start = |point: gpui::Point<Pixels>| gpui::Point {
3748 x: point.x.max(content_origin.x),
3749 y: point.y,
3750 };
3751
3752 match &active_inline_completion.completion {
3753 InlineCompletion::Move { target, .. } => {
3754 let target_display_point = target.to_display_point(editor_snapshot);
3755
3756 if editor.edit_prediction_requires_modifier() {
3757 if !editor.edit_prediction_preview_is_active() {
3758 return None;
3759 }
3760
3761 if target_display_point.row() < visible_row_range.start {
3762 let mut element = editor
3763 .render_edit_prediction_line_popover(
3764 "Scroll",
3765 Some(IconName::ArrowUp),
3766 window,
3767 cx,
3768 )?
3769 .into_any();
3770
3771 element.layout_as_root(AvailableSpace::min_size(), window, cx);
3772
3773 let cursor = newest_selection_head?;
3774 let cursor_row_layout = line_layouts
3775 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3776 let cursor_column = cursor.column() as usize;
3777
3778 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3779
3780 const PADDING_Y: Pixels = px(12.);
3781
3782 let origin = start_point + point(cursor_character_x, PADDING_Y);
3783
3784 element.prepaint_at(origin, window, cx);
3785 return Some((element, origin));
3786 } else if target_display_point.row() >= visible_row_range.end {
3787 let mut element = editor
3788 .render_edit_prediction_line_popover(
3789 "Scroll",
3790 Some(IconName::ArrowDown),
3791 window,
3792 cx,
3793 )?
3794 .into_any();
3795
3796 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3797
3798 let cursor = newest_selection_head?;
3799 let cursor_row_layout = line_layouts
3800 .get(cursor.row().minus(visible_row_range.start) as usize)?;
3801 let cursor_column = cursor.column() as usize;
3802
3803 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
3804 const PADDING_Y: Pixels = px(12.);
3805
3806 let origin = start_point
3807 + point(
3808 cursor_character_x,
3809 text_bounds.size.height - size.height - PADDING_Y,
3810 );
3811
3812 element.prepaint_at(origin, window, cx);
3813 return Some((element, origin));
3814 } else {
3815 const POLE_WIDTH: Pixels = px(2.);
3816
3817 let mut element = v_flex()
3818 .items_end()
3819 .child(
3820 editor
3821 .render_edit_prediction_line_popover("Jump", None, window, cx)?
3822 .rounded_br(px(0.))
3823 .rounded_tr(px(0.))
3824 .border_r_2(),
3825 )
3826 .child(
3827 div()
3828 .w(POLE_WIDTH)
3829 .bg(Editor::edit_prediction_callout_popover_border_color(cx))
3830 .h(line_height),
3831 )
3832 .into_any();
3833
3834 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3835
3836 let line_layout =
3837 line_layouts
3838 .get(target_display_point.row().minus(visible_row_range.start)
3839 as usize)?;
3840 let target_column = target_display_point.column() as usize;
3841
3842 let target_x = line_layout.x_for_index(target_column);
3843 let target_y = (target_display_point.row().as_f32() * line_height)
3844 - scroll_pixel_position.y;
3845
3846 let origin = clamp_start(
3847 start_point + point(target_x, target_y)
3848 - point(size.width - POLE_WIDTH, size.height - line_height),
3849 );
3850
3851 element.prepaint_at(origin, window, cx);
3852
3853 return Some((element, origin));
3854 }
3855 }
3856
3857 if target_display_point.row().as_f32() < scroll_top {
3858 let mut element = editor
3859 .render_edit_prediction_line_popover(
3860 "Jump to Edit",
3861 Some(IconName::ArrowUp),
3862 window,
3863 cx,
3864 )?
3865 .into_any();
3866
3867 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3868 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3869
3870 let origin = text_bounds.origin + offset;
3871 element.prepaint_at(origin, window, cx);
3872 Some((element, origin))
3873 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3874 let mut element = editor
3875 .render_edit_prediction_line_popover(
3876 "Jump to Edit",
3877 Some(IconName::ArrowDown),
3878 window,
3879 cx,
3880 )?
3881 .into_any();
3882
3883 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3884 let offset = point(
3885 (text_bounds.size.width - size.width) / 2.,
3886 text_bounds.size.height - size.height - PADDING_Y,
3887 );
3888
3889 let origin = text_bounds.origin + offset;
3890 element.prepaint_at(origin, window, cx);
3891 Some((element, origin))
3892 } else {
3893 let mut element = editor
3894 .render_edit_prediction_line_popover("Jump to Edit", None, window, cx)?
3895 .into_any();
3896 let target_line_end = DisplayPoint::new(
3897 target_display_point.row(),
3898 editor_snapshot.line_len(target_display_point.row()),
3899 );
3900 let origin = self.editor.update(cx, |editor, _cx| {
3901 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3902 })?;
3903
3904 let origin = clamp_start(start_point + origin + point(PADDING_X, px(0.)));
3905 element.prepaint_as_root(origin, AvailableSpace::min_size(), window, cx);
3906 Some((element, origin))
3907 }
3908 }
3909 InlineCompletion::Edit {
3910 edits,
3911 edit_preview,
3912 display_mode,
3913 snapshot,
3914 } => {
3915 if self.editor.read(cx).has_visible_completions_menu() {
3916 return None;
3917 }
3918
3919 let edit_start = edits
3920 .first()
3921 .unwrap()
3922 .0
3923 .start
3924 .to_display_point(editor_snapshot);
3925 let edit_end = edits
3926 .last()
3927 .unwrap()
3928 .0
3929 .end
3930 .to_display_point(editor_snapshot);
3931
3932 let is_visible = visible_row_range.contains(&edit_start.row())
3933 || visible_row_range.contains(&edit_end.row());
3934 if !is_visible {
3935 return None;
3936 }
3937
3938 match display_mode {
3939 EditDisplayMode::TabAccept => {
3940 let range = &edits.first()?.0;
3941 let target_display_point = range.end.to_display_point(editor_snapshot);
3942
3943 let target_line_end = DisplayPoint::new(
3944 target_display_point.row(),
3945 editor_snapshot.line_len(target_display_point.row()),
3946 );
3947 let (mut element, origin) = self.editor.update(cx, |editor, cx| {
3948 Some((
3949 editor
3950 .render_edit_prediction_line_popover(
3951 "Accept", None, window, cx,
3952 )?
3953 .into_any(),
3954 editor.display_to_pixel_point(
3955 target_line_end,
3956 editor_snapshot,
3957 window,
3958 )?,
3959 ))
3960 })?;
3961
3962 let origin = clamp_start(start_point + origin + point(PADDING_X, px(0.)));
3963 element.prepaint_as_root(origin, AvailableSpace::min_size(), window, cx);
3964 return Some((element, origin));
3965 }
3966 EditDisplayMode::Inline => return None,
3967 EditDisplayMode::DiffPopover => {}
3968 }
3969
3970 let highlighted_edits = crate::inline_completion_edit_text(
3971 &snapshot,
3972 edits,
3973 edit_preview.as_ref()?,
3974 false,
3975 cx,
3976 );
3977
3978 let styled_text = highlighted_edits.to_styled_text(&style.text);
3979 let line_count = highlighted_edits.text.lines().count();
3980
3981 const BORDER_WIDTH: Pixels = px(1.);
3982
3983 let mut element = h_flex()
3984 .items_start()
3985 .child(
3986 h_flex()
3987 .bg(cx.theme().colors().editor_background)
3988 .border(BORDER_WIDTH)
3989 .shadow_sm()
3990 .border_color(cx.theme().colors().border)
3991 .rounded_l_lg()
3992 .when(line_count > 1, |el| el.rounded_br_lg())
3993 .pr_1()
3994 .child(styled_text),
3995 )
3996 .child(
3997 h_flex()
3998 .h(line_height + BORDER_WIDTH * px(2.))
3999 .px_1p5()
4000 .gap_1()
4001 // Workaround: For some reason, there's a gap if we don't do this
4002 .ml(-BORDER_WIDTH)
4003 .shadow(smallvec![gpui::BoxShadow {
4004 color: gpui::black().opacity(0.05),
4005 offset: point(px(1.), px(1.)),
4006 blur_radius: px(2.),
4007 spread_radius: px(0.),
4008 }])
4009 .bg(Editor::edit_prediction_line_popover_bg_color(cx))
4010 .border(BORDER_WIDTH)
4011 .border_color(cx.theme().colors().border)
4012 .rounded_r_lg()
4013 .children(editor.render_edit_prediction_accept_keybind(window, cx)),
4014 )
4015 .into_any();
4016
4017 let longest_row =
4018 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
4019 let longest_line_width = if visible_row_range.contains(&longest_row) {
4020 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
4021 } else {
4022 layout_line(
4023 longest_row,
4024 editor_snapshot,
4025 style,
4026 editor_width,
4027 |_| false,
4028 window,
4029 cx,
4030 )
4031 .width
4032 };
4033
4034 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
4035 .extend(Edges {
4036 right: -Self::SCROLLBAR_WIDTH,
4037 ..Default::default()
4038 });
4039
4040 let x_after_longest =
4041 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
4042
4043 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4044
4045 // Fully visible if it can be displayed within the window (allow overlapping other
4046 // panes). However, this is only allowed if the popover starts within text_bounds.
4047 let can_position_to_the_right = x_after_longest < text_bounds.right()
4048 && x_after_longest + element_bounds.width < viewport_bounds.right();
4049
4050 let mut origin = if can_position_to_the_right {
4051 point(
4052 x_after_longest,
4053 text_bounds.origin.y + edit_start.row().as_f32() * line_height
4054 - scroll_pixel_position.y,
4055 )
4056 } else {
4057 let cursor_row = newest_selection_head.map(|head| head.row());
4058 let above_edit = edit_start
4059 .row()
4060 .0
4061 .checked_sub(line_count as u32)
4062 .map(DisplayRow);
4063 let below_edit = Some(edit_end.row() + 1);
4064 let above_cursor = cursor_row
4065 .and_then(|row| row.0.checked_sub(line_count as u32).map(DisplayRow));
4066 let below_cursor = cursor_row.map(|cursor_row| cursor_row + 1);
4067
4068 // Place the edit popover adjacent to the edit if there is a location
4069 // available that is onscreen and does not obscure the cursor. Otherwise,
4070 // place it adjacent to the cursor.
4071 let row_target = [above_edit, below_edit, above_cursor, below_cursor]
4072 .into_iter()
4073 .flatten()
4074 .find(|&start_row| {
4075 let end_row = start_row + line_count as u32;
4076 visible_row_range.contains(&start_row)
4077 && visible_row_range.contains(&end_row)
4078 && cursor_row.map_or(true, |cursor_row| {
4079 !((start_row..end_row).contains(&cursor_row))
4080 })
4081 })?;
4082
4083 content_origin
4084 + point(
4085 -scroll_pixel_position.x,
4086 row_target.as_f32() * line_height - scroll_pixel_position.y,
4087 )
4088 };
4089
4090 origin.x -= BORDER_WIDTH;
4091
4092 window.defer_draw(element, origin, 1);
4093
4094 // Do not return an element, since it will already be drawn due to defer_draw.
4095 None
4096 }
4097 }
4098 }
4099
4100 fn layout_mouse_context_menu(
4101 &self,
4102 editor_snapshot: &EditorSnapshot,
4103 visible_range: Range<DisplayRow>,
4104 content_origin: gpui::Point<Pixels>,
4105 window: &mut Window,
4106 cx: &mut App,
4107 ) -> Option<AnyElement> {
4108 let position = self.editor.update(cx, |editor, _cx| {
4109 let visible_start_point = editor.display_to_pixel_point(
4110 DisplayPoint::new(visible_range.start, 0),
4111 editor_snapshot,
4112 window,
4113 )?;
4114 let visible_end_point = editor.display_to_pixel_point(
4115 DisplayPoint::new(visible_range.end, 0),
4116 editor_snapshot,
4117 window,
4118 )?;
4119
4120 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4121 let (source_display_point, position) = match mouse_context_menu.position {
4122 MenuPosition::PinnedToScreen(point) => (None, point),
4123 MenuPosition::PinnedToEditor { source, offset } => {
4124 let source_display_point = source.to_display_point(editor_snapshot);
4125 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4126 let position = content_origin + source_point + offset;
4127 (Some(source_display_point), position)
4128 }
4129 };
4130
4131 let source_included = source_display_point.map_or(true, |source_display_point| {
4132 visible_range
4133 .to_inclusive()
4134 .contains(&source_display_point.row())
4135 });
4136 let position_included =
4137 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4138 if !source_included && !position_included {
4139 None
4140 } else {
4141 Some(position)
4142 }
4143 })?;
4144
4145 let text_style = TextStyleRefinement {
4146 line_height: Some(DefiniteLength::Fraction(
4147 BufferLineHeight::Comfortable.value(),
4148 )),
4149 ..Default::default()
4150 };
4151 window.with_text_style(Some(text_style), |window| {
4152 let mut element = self.editor.update(cx, |editor, _| {
4153 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4154 let context_menu = mouse_context_menu.context_menu.clone();
4155
4156 Some(
4157 deferred(
4158 anchored()
4159 .position(position)
4160 .child(context_menu)
4161 .anchor(Corner::TopLeft)
4162 .snap_to_window_with_margin(px(8.)),
4163 )
4164 .with_priority(1)
4165 .into_any(),
4166 )
4167 })?;
4168
4169 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4170 Some(element)
4171 })
4172 }
4173
4174 #[allow(clippy::too_many_arguments)]
4175 fn layout_hover_popovers(
4176 &self,
4177 snapshot: &EditorSnapshot,
4178 hitbox: &Hitbox,
4179 text_hitbox: &Hitbox,
4180 visible_display_row_range: Range<DisplayRow>,
4181 content_origin: gpui::Point<Pixels>,
4182 scroll_pixel_position: gpui::Point<Pixels>,
4183 line_layouts: &[LineWithInvisibles],
4184 line_height: Pixels,
4185 em_width: Pixels,
4186 window: &mut Window,
4187 cx: &mut App,
4188 ) {
4189 struct MeasuredHoverPopover {
4190 element: AnyElement,
4191 size: Size<Pixels>,
4192 horizontal_offset: Pixels,
4193 }
4194
4195 let max_size = size(
4196 (120. * em_width) // Default size
4197 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4198 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4199 (16. * line_height) // Default size
4200 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4201 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4202 );
4203
4204 let hover_popovers = self.editor.update(cx, |editor, cx| {
4205 editor
4206 .hover_state
4207 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4208 });
4209 let Some((position, hover_popovers)) = hover_popovers else {
4210 return;
4211 };
4212
4213 // This is safe because we check on layout whether the required row is available
4214 let hovered_row_layout =
4215 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4216
4217 // Compute Hovered Point
4218 let x =
4219 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4220 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4221 let hovered_point = content_origin + point(x, y);
4222
4223 let mut overall_height = Pixels::ZERO;
4224 let mut measured_hover_popovers = Vec::new();
4225 for mut hover_popover in hover_popovers {
4226 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4227 let horizontal_offset =
4228 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4229
4230 overall_height += HOVER_POPOVER_GAP + size.height;
4231
4232 measured_hover_popovers.push(MeasuredHoverPopover {
4233 element: hover_popover,
4234 size,
4235 horizontal_offset,
4236 });
4237 }
4238 overall_height += HOVER_POPOVER_GAP;
4239
4240 fn draw_occluder(
4241 width: Pixels,
4242 origin: gpui::Point<Pixels>,
4243 window: &mut Window,
4244 cx: &mut App,
4245 ) {
4246 let mut occlusion = div()
4247 .size_full()
4248 .occlude()
4249 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4250 .into_any_element();
4251 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4252 window.defer_draw(occlusion, origin, 2);
4253 }
4254
4255 if hovered_point.y > overall_height {
4256 // There is enough space above. Render popovers above the hovered point
4257 let mut current_y = hovered_point.y;
4258 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4259 let size = popover.size;
4260 let popover_origin = point(
4261 hovered_point.x + popover.horizontal_offset,
4262 current_y - size.height,
4263 );
4264
4265 window.defer_draw(popover.element, popover_origin, 2);
4266 if position != itertools::Position::Last {
4267 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4268 draw_occluder(size.width, origin, window, cx);
4269 }
4270
4271 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4272 }
4273 } else {
4274 // There is not enough space above. Render popovers below the hovered point
4275 let mut current_y = hovered_point.y + line_height;
4276 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4277 let size = popover.size;
4278 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4279
4280 window.defer_draw(popover.element, popover_origin, 2);
4281 if position != itertools::Position::Last {
4282 let origin = point(popover_origin.x, popover_origin.y + size.height);
4283 draw_occluder(size.width, origin, window, cx);
4284 }
4285
4286 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4287 }
4288 }
4289 }
4290
4291 #[allow(clippy::too_many_arguments)]
4292 fn layout_diff_hunk_controls(
4293 &self,
4294 row_range: Range<DisplayRow>,
4295 row_infos: &[RowInfo],
4296 text_hitbox: &Hitbox,
4297 position_map: &PositionMap,
4298 newest_cursor_position: Option<DisplayPoint>,
4299 line_height: Pixels,
4300 scroll_pixel_position: gpui::Point<Pixels>,
4301 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4302 editor: Entity<Editor>,
4303 window: &mut Window,
4304 cx: &mut App,
4305 ) -> Vec<AnyElement> {
4306 let point_for_position = position_map.point_for_position(window.mouse_position());
4307
4308 let mut controls = vec![];
4309
4310 let active_positions = [
4311 Some(point_for_position.previous_valid),
4312 newest_cursor_position,
4313 ];
4314
4315 for (hunk, _) in display_hunks {
4316 if let DisplayDiffHunk::Unfolded {
4317 display_row_range,
4318 multi_buffer_range,
4319 status,
4320 ..
4321 } = &hunk
4322 {
4323 if display_row_range.start < row_range.start
4324 || display_row_range.start >= row_range.end
4325 {
4326 continue;
4327 }
4328 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4329 if row_infos[row_ix].diff_status.is_none() {
4330 continue;
4331 }
4332 if row_infos[row_ix]
4333 .diff_status
4334 .is_some_and(|status| status.is_added())
4335 && !status.is_added()
4336 {
4337 continue;
4338 }
4339 if active_positions
4340 .iter()
4341 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4342 {
4343 let y = display_row_range.start.as_f32() * line_height
4344 + text_hitbox.bounds.top()
4345 - scroll_pixel_position.y;
4346 let x = text_hitbox.bounds.right() - px(100.);
4347
4348 let mut element = diff_hunk_controls(
4349 display_row_range.start.0,
4350 multi_buffer_range.clone(),
4351 line_height,
4352 &editor,
4353 cx,
4354 );
4355 element.prepaint_as_root(
4356 gpui::Point::new(x, y),
4357 size(px(100.0), line_height).into(),
4358 window,
4359 cx,
4360 );
4361 controls.push(element);
4362 }
4363 }
4364 }
4365
4366 controls
4367 }
4368
4369 #[allow(clippy::too_many_arguments)]
4370 fn layout_signature_help(
4371 &self,
4372 hitbox: &Hitbox,
4373 content_origin: gpui::Point<Pixels>,
4374 scroll_pixel_position: gpui::Point<Pixels>,
4375 newest_selection_head: Option<DisplayPoint>,
4376 start_row: DisplayRow,
4377 line_layouts: &[LineWithInvisibles],
4378 line_height: Pixels,
4379 em_width: Pixels,
4380 window: &mut Window,
4381 cx: &mut App,
4382 ) {
4383 if !self.editor.focus_handle(cx).is_focused(window) {
4384 return;
4385 }
4386 let Some(newest_selection_head) = newest_selection_head else {
4387 return;
4388 };
4389 let selection_row = newest_selection_head.row();
4390 if selection_row < start_row {
4391 return;
4392 }
4393 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4394 else {
4395 return;
4396 };
4397
4398 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4399 - scroll_pixel_position.x
4400 + content_origin.x;
4401 let start_y =
4402 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4403
4404 let max_size = size(
4405 (120. * em_width) // Default size
4406 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4407 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4408 (16. * line_height) // Default size
4409 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4410 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4411 );
4412
4413 let maybe_element = self.editor.update(cx, |editor, cx| {
4414 if let Some(popover) = editor.signature_help_state.popover_mut() {
4415 let element = popover.render(max_size, cx);
4416 Some(element)
4417 } else {
4418 None
4419 }
4420 });
4421 if let Some(mut element) = maybe_element {
4422 let window_size = window.viewport_size();
4423 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4424 let mut point = point(start_x, start_y - size.height);
4425
4426 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4427 if point.x + size.width >= window_size.width {
4428 point.x = window_size.width - size.width;
4429 }
4430
4431 window.defer_draw(element, point, 1)
4432 }
4433 }
4434
4435 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4436 window.paint_layer(layout.hitbox.bounds, |window| {
4437 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4438 let gutter_bg = cx.theme().colors().editor_gutter_background;
4439 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4440 window.paint_quad(fill(
4441 layout.position_map.text_hitbox.bounds,
4442 self.style.background,
4443 ));
4444
4445 if let EditorMode::Full = layout.mode {
4446 let mut active_rows = layout.active_rows.iter().peekable();
4447 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4448 let mut end_row = start_row.0;
4449 while active_rows
4450 .peek()
4451 .map_or(false, |(active_row, has_selection)| {
4452 active_row.0 == end_row + 1
4453 && *has_selection == contains_non_empty_selection
4454 })
4455 {
4456 active_rows.next().unwrap();
4457 end_row += 1;
4458 }
4459
4460 if !contains_non_empty_selection {
4461 let highlight_h_range =
4462 match layout.position_map.snapshot.current_line_highlight {
4463 CurrentLineHighlight::Gutter => Some(Range {
4464 start: layout.hitbox.left(),
4465 end: layout.gutter_hitbox.right(),
4466 }),
4467 CurrentLineHighlight::Line => Some(Range {
4468 start: layout.position_map.text_hitbox.bounds.left(),
4469 end: layout.position_map.text_hitbox.bounds.right(),
4470 }),
4471 CurrentLineHighlight::All => Some(Range {
4472 start: layout.hitbox.left(),
4473 end: layout.hitbox.right(),
4474 }),
4475 CurrentLineHighlight::None => None,
4476 };
4477 if let Some(range) = highlight_h_range {
4478 let active_line_bg = cx.theme().colors().editor_active_line_background;
4479 let bounds = Bounds {
4480 origin: point(
4481 range.start,
4482 layout.hitbox.origin.y
4483 + (start_row.as_f32() - scroll_top)
4484 * layout.position_map.line_height,
4485 ),
4486 size: size(
4487 range.end - range.start,
4488 layout.position_map.line_height
4489 * (end_row - start_row.0 + 1) as f32,
4490 ),
4491 };
4492 window.paint_quad(fill(bounds, active_line_bg));
4493 }
4494 }
4495 }
4496
4497 let mut paint_highlight =
4498 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4499 let origin = point(
4500 layout.hitbox.origin.x,
4501 layout.hitbox.origin.y
4502 + (highlight_row_start.as_f32() - scroll_top)
4503 * layout.position_map.line_height,
4504 );
4505 let size = size(
4506 layout.hitbox.size.width,
4507 layout.position_map.line_height
4508 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4509 );
4510 window.paint_quad(fill(Bounds { origin, size }, color));
4511 };
4512
4513 let mut current_paint: Option<(gpui::Background, Range<DisplayRow>)> = None;
4514 for (&new_row, &new_background) in &layout.highlighted_rows {
4515 match &mut current_paint {
4516 Some((current_background, current_range)) => {
4517 let current_background = *current_background;
4518 let new_range_started = current_background != new_background
4519 || current_range.end.next_row() != new_row;
4520 if new_range_started {
4521 paint_highlight(
4522 current_range.start,
4523 current_range.end,
4524 current_background,
4525 );
4526 current_paint = Some((new_background, new_row..new_row));
4527 continue;
4528 } else {
4529 current_range.end = current_range.end.next_row();
4530 }
4531 }
4532 None => current_paint = Some((new_background, new_row..new_row)),
4533 };
4534 }
4535 if let Some((color, range)) = current_paint {
4536 paint_highlight(range.start, range.end, color);
4537 }
4538
4539 let scroll_left =
4540 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4541
4542 for (wrap_position, active) in layout.wrap_guides.iter() {
4543 let x = (layout.position_map.text_hitbox.origin.x
4544 + *wrap_position
4545 + layout.position_map.em_width / 2.)
4546 - scroll_left;
4547
4548 let show_scrollbars = {
4549 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4550
4551 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4552 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4553 };
4554
4555 if x < layout.position_map.text_hitbox.origin.x
4556 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4557 {
4558 continue;
4559 }
4560
4561 let color = if *active {
4562 cx.theme().colors().editor_active_wrap_guide
4563 } else {
4564 cx.theme().colors().editor_wrap_guide
4565 };
4566 window.paint_quad(fill(
4567 Bounds {
4568 origin: point(x, layout.position_map.text_hitbox.origin.y),
4569 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4570 },
4571 color,
4572 ));
4573 }
4574 }
4575 })
4576 }
4577
4578 fn paint_indent_guides(
4579 &mut self,
4580 layout: &mut EditorLayout,
4581 window: &mut Window,
4582 cx: &mut App,
4583 ) {
4584 let Some(indent_guides) = &layout.indent_guides else {
4585 return;
4586 };
4587
4588 let faded_color = |color: Hsla, alpha: f32| {
4589 let mut faded = color;
4590 faded.a = alpha;
4591 faded
4592 };
4593
4594 for indent_guide in indent_guides {
4595 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4596 let settings = indent_guide.settings;
4597
4598 // TODO fixed for now, expose them through themes later
4599 const INDENT_AWARE_ALPHA: f32 = 0.2;
4600 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4601 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4602 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4603
4604 let line_color = match (settings.coloring, indent_guide.active) {
4605 (IndentGuideColoring::Disabled, _) => None,
4606 (IndentGuideColoring::Fixed, false) => {
4607 Some(cx.theme().colors().editor_indent_guide)
4608 }
4609 (IndentGuideColoring::Fixed, true) => {
4610 Some(cx.theme().colors().editor_indent_guide_active)
4611 }
4612 (IndentGuideColoring::IndentAware, false) => {
4613 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4614 }
4615 (IndentGuideColoring::IndentAware, true) => {
4616 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4617 }
4618 };
4619
4620 let background_color = match (settings.background_coloring, indent_guide.active) {
4621 (IndentGuideBackgroundColoring::Disabled, _) => None,
4622 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4623 indent_accent_colors,
4624 INDENT_AWARE_BACKGROUND_ALPHA,
4625 )),
4626 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4627 indent_accent_colors,
4628 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4629 )),
4630 };
4631
4632 let requested_line_width = if indent_guide.active {
4633 settings.active_line_width
4634 } else {
4635 settings.line_width
4636 }
4637 .clamp(1, 10);
4638 let mut line_indicator_width = 0.;
4639 if let Some(color) = line_color {
4640 window.paint_quad(fill(
4641 Bounds {
4642 origin: indent_guide.origin,
4643 size: size(px(requested_line_width as f32), indent_guide.length),
4644 },
4645 color,
4646 ));
4647 line_indicator_width = requested_line_width as f32;
4648 }
4649
4650 if let Some(color) = background_color {
4651 let width = indent_guide.single_indent_width - px(line_indicator_width);
4652 window.paint_quad(fill(
4653 Bounds {
4654 origin: point(
4655 indent_guide.origin.x + px(line_indicator_width),
4656 indent_guide.origin.y,
4657 ),
4658 size: size(width, indent_guide.length),
4659 },
4660 color,
4661 ));
4662 }
4663 }
4664 }
4665
4666 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4667 let is_singleton = self.editor.read(cx).is_singleton(cx);
4668
4669 let line_height = layout.position_map.line_height;
4670 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4671
4672 for LineNumberLayout {
4673 shaped_line,
4674 hitbox,
4675 display_row,
4676 } in layout.line_numbers.values()
4677 {
4678 let Some(hitbox) = hitbox else {
4679 continue;
4680 };
4681
4682 let is_active = layout.active_rows.contains_key(&display_row);
4683
4684 let color = if is_active {
4685 cx.theme().colors().editor_active_line_number
4686 } else if !is_singleton && hitbox.is_hovered(window) {
4687 cx.theme().colors().editor_hover_line_number
4688 } else {
4689 cx.theme().colors().editor_line_number
4690 };
4691
4692 let Some(line) = self
4693 .shape_line_number(shaped_line.text.clone(), color, window)
4694 .log_err()
4695 else {
4696 continue;
4697 };
4698 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4699 continue;
4700 };
4701 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4702 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4703 if is_singleton {
4704 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4705 } else {
4706 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4707 }
4708 }
4709 }
4710
4711 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4712 if layout.display_hunks.is_empty() {
4713 return;
4714 }
4715
4716 let line_height = layout.position_map.line_height;
4717 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4718 for (hunk, hitbox) in &layout.display_hunks {
4719 let hunk_to_paint = match hunk {
4720 DisplayDiffHunk::Folded { .. } => {
4721 let hunk_bounds = Self::diff_hunk_bounds(
4722 &layout.position_map.snapshot,
4723 line_height,
4724 layout.gutter_hitbox.bounds,
4725 hunk,
4726 );
4727 Some((
4728 hunk_bounds,
4729 cx.theme().colors().version_control_modified,
4730 Corners::all(px(0.)),
4731 DiffHunkSecondaryStatus::None,
4732 ))
4733 }
4734 DisplayDiffHunk::Unfolded {
4735 status,
4736 display_row_range,
4737 ..
4738 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4739 DiffHunkStatusKind::Added => (
4740 hunk_hitbox.bounds,
4741 cx.theme().colors().version_control_added,
4742 Corners::all(px(0.)),
4743 status.secondary,
4744 ),
4745 DiffHunkStatusKind::Modified => (
4746 hunk_hitbox.bounds,
4747 cx.theme().colors().version_control_modified,
4748 Corners::all(px(0.)),
4749 status.secondary,
4750 ),
4751 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4752 hunk_hitbox.bounds,
4753 cx.theme().colors().version_control_deleted,
4754 Corners::all(px(0.)),
4755 status.secondary,
4756 ),
4757 DiffHunkStatusKind::Deleted => (
4758 Bounds::new(
4759 point(
4760 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4761 hunk_hitbox.origin.y,
4762 ),
4763 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4764 ),
4765 cx.theme().colors().version_control_deleted,
4766 Corners::all(1. * line_height),
4767 status.secondary,
4768 ),
4769 }),
4770 };
4771
4772 if let Some((hunk_bounds, background_color, corner_radii, secondary_status)) =
4773 hunk_to_paint
4774 {
4775 let background_color = if secondary_status != DiffHunkSecondaryStatus::None {
4776 background_color.opacity(0.3)
4777 } else {
4778 background_color.opacity(1.0)
4779 };
4780 window.paint_quad(quad(
4781 hunk_bounds,
4782 corner_radii,
4783 background_color,
4784 Edges::default(),
4785 transparent_black(),
4786 ));
4787 }
4788 }
4789 });
4790 }
4791
4792 fn diff_hunk_bounds(
4793 snapshot: &EditorSnapshot,
4794 line_height: Pixels,
4795 gutter_bounds: Bounds<Pixels>,
4796 hunk: &DisplayDiffHunk,
4797 ) -> Bounds<Pixels> {
4798 let scroll_position = snapshot.scroll_position();
4799 let scroll_top = scroll_position.y * line_height;
4800 let gutter_strip_width = (0.275 * line_height).floor();
4801
4802 match hunk {
4803 DisplayDiffHunk::Folded { display_row, .. } => {
4804 let start_y = display_row.as_f32() * line_height - scroll_top;
4805 let end_y = start_y + line_height;
4806 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4807 let highlight_size = size(gutter_strip_width, end_y - start_y);
4808 Bounds::new(highlight_origin, highlight_size)
4809 }
4810 DisplayDiffHunk::Unfolded {
4811 display_row_range,
4812 status,
4813 ..
4814 } => {
4815 if status.is_deleted() && display_row_range.is_empty() {
4816 let row = display_row_range.start;
4817
4818 let offset = line_height / 2.;
4819 let start_y = row.as_f32() * line_height - offset - scroll_top;
4820 let end_y = start_y + line_height;
4821
4822 let width = (0.35 * line_height).floor();
4823 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4824 let highlight_size = size(width, end_y - start_y);
4825 Bounds::new(highlight_origin, highlight_size)
4826 } else {
4827 let start_row = display_row_range.start;
4828 let end_row = display_row_range.end;
4829 // If we're in a multibuffer, row range span might include an
4830 // excerpt header, so if we were to draw the marker straight away,
4831 // the hunk might include the rows of that header.
4832 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4833 // Instead, we simply check whether the range we're dealing with includes
4834 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4835 let end_row_in_current_excerpt = snapshot
4836 .blocks_in_range(start_row..end_row)
4837 .find_map(|(start_row, block)| {
4838 if matches!(block, Block::ExcerptBoundary { .. }) {
4839 Some(start_row)
4840 } else {
4841 None
4842 }
4843 })
4844 .unwrap_or(end_row);
4845
4846 let start_y = start_row.as_f32() * line_height - scroll_top;
4847 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4848
4849 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4850 let highlight_size = size(gutter_strip_width, end_y - start_y);
4851 Bounds::new(highlight_origin, highlight_size)
4852 }
4853 }
4854 }
4855 }
4856
4857 fn paint_gutter_indicators(
4858 &self,
4859 layout: &mut EditorLayout,
4860 window: &mut Window,
4861 cx: &mut App,
4862 ) {
4863 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4864 window.with_element_namespace("crease_toggles", |window| {
4865 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4866 crease_toggle.paint(window, cx);
4867 }
4868 });
4869
4870 for test_indicator in layout.test_indicators.iter_mut() {
4871 test_indicator.paint(window, cx);
4872 }
4873
4874 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4875 indicator.paint(window, cx);
4876 }
4877 });
4878 }
4879
4880 fn paint_gutter_highlights(
4881 &self,
4882 layout: &mut EditorLayout,
4883 window: &mut Window,
4884 cx: &mut App,
4885 ) {
4886 for (_, hunk_hitbox) in &layout.display_hunks {
4887 if let Some(hunk_hitbox) = hunk_hitbox {
4888 if !self
4889 .editor
4890 .read(cx)
4891 .buffer()
4892 .read(cx)
4893 .all_diff_hunks_expanded()
4894 {
4895 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4896 }
4897 }
4898 }
4899
4900 let show_git_gutter = layout
4901 .position_map
4902 .snapshot
4903 .show_git_diff_gutter
4904 .unwrap_or_else(|| {
4905 matches!(
4906 ProjectSettings::get_global(cx).git.git_gutter,
4907 Some(GitGutterSetting::TrackedFiles)
4908 )
4909 });
4910 if show_git_gutter {
4911 Self::paint_diff_hunks(layout, window, cx)
4912 }
4913
4914 let highlight_width = 0.275 * layout.position_map.line_height;
4915 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4916 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4917 for (range, color) in &layout.highlighted_gutter_ranges {
4918 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4919 layout.visible_display_row_range.start - DisplayRow(1)
4920 } else {
4921 range.start.row()
4922 };
4923 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4924 layout.visible_display_row_range.end + DisplayRow(1)
4925 } else {
4926 range.end.row()
4927 };
4928
4929 let start_y = layout.gutter_hitbox.top()
4930 + start_row.0 as f32 * layout.position_map.line_height
4931 - layout.position_map.scroll_pixel_position.y;
4932 let end_y = layout.gutter_hitbox.top()
4933 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4934 - layout.position_map.scroll_pixel_position.y;
4935 let bounds = Bounds::from_corners(
4936 point(layout.gutter_hitbox.left(), start_y),
4937 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4938 );
4939 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4940 }
4941 });
4942 }
4943
4944 fn paint_blamed_display_rows(
4945 &self,
4946 layout: &mut EditorLayout,
4947 window: &mut Window,
4948 cx: &mut App,
4949 ) {
4950 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4951 return;
4952 };
4953
4954 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4955 for mut blame_element in blamed_display_rows.into_iter() {
4956 blame_element.paint(window, cx);
4957 }
4958 })
4959 }
4960
4961 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4962 window.with_content_mask(
4963 Some(ContentMask {
4964 bounds: layout.position_map.text_hitbox.bounds,
4965 }),
4966 |window| {
4967 let editor = self.editor.read(cx);
4968 let cursor_style = if editor.mouse_cursor_hidden {
4969 CursorStyle::None
4970 } else if editor
4971 .hovered_link_state
4972 .as_ref()
4973 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4974 {
4975 CursorStyle::PointingHand
4976 } else {
4977 CursorStyle::IBeam
4978 };
4979 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4980
4981 let invisible_display_ranges = self.paint_highlights(layout, window);
4982 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4983 self.paint_redactions(layout, window);
4984 self.paint_cursors(layout, window, cx);
4985 self.paint_inline_diagnostics(layout, window, cx);
4986 self.paint_inline_blame(layout, window, cx);
4987 self.paint_diff_hunk_controls(layout, window, cx);
4988 window.with_element_namespace("crease_trailers", |window| {
4989 for trailer in layout.crease_trailers.iter_mut().flatten() {
4990 trailer.element.paint(window, cx);
4991 }
4992 });
4993 },
4994 )
4995 }
4996
4997 fn paint_highlights(
4998 &mut self,
4999 layout: &mut EditorLayout,
5000 window: &mut Window,
5001 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5002 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5003 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5004 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5005 for (range, color) in &layout.highlighted_ranges {
5006 self.paint_highlighted_range(
5007 range.clone(),
5008 *color,
5009 Pixels::ZERO,
5010 line_end_overshoot,
5011 layout,
5012 window,
5013 );
5014 }
5015
5016 let corner_radius = 0.15 * layout.position_map.line_height;
5017
5018 for (player_color, selections) in &layout.selections {
5019 for selection in selections.iter() {
5020 self.paint_highlighted_range(
5021 selection.range.clone(),
5022 player_color.selection,
5023 corner_radius,
5024 corner_radius * 2.,
5025 layout,
5026 window,
5027 );
5028
5029 if selection.is_local && !selection.range.is_empty() {
5030 invisible_display_ranges.push(selection.range.clone());
5031 }
5032 }
5033 }
5034 invisible_display_ranges
5035 })
5036 }
5037
5038 fn paint_lines(
5039 &mut self,
5040 invisible_display_ranges: &[Range<DisplayPoint>],
5041 layout: &mut EditorLayout,
5042 window: &mut Window,
5043 cx: &mut App,
5044 ) {
5045 let whitespace_setting = self
5046 .editor
5047 .read(cx)
5048 .buffer
5049 .read(cx)
5050 .settings_at(0, cx)
5051 .show_whitespaces;
5052
5053 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5054 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5055 line_with_invisibles.draw(
5056 layout,
5057 row,
5058 layout.content_origin,
5059 whitespace_setting,
5060 invisible_display_ranges,
5061 window,
5062 cx,
5063 )
5064 }
5065
5066 for line_element in &mut layout.line_elements {
5067 line_element.paint(window, cx);
5068 }
5069 }
5070
5071 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5072 if layout.redacted_ranges.is_empty() {
5073 return;
5074 }
5075
5076 let line_end_overshoot = layout.line_end_overshoot();
5077
5078 // A softer than perfect black
5079 let redaction_color = gpui::rgb(0x0e1111);
5080
5081 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5082 for range in layout.redacted_ranges.iter() {
5083 self.paint_highlighted_range(
5084 range.clone(),
5085 redaction_color.into(),
5086 Pixels::ZERO,
5087 line_end_overshoot,
5088 layout,
5089 window,
5090 );
5091 }
5092 });
5093 }
5094
5095 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5096 for cursor in &mut layout.visible_cursors {
5097 cursor.paint(layout.content_origin, window, cx);
5098 }
5099 }
5100
5101 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5102 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
5103
5104 if let Some(scrollbar_layout) = scrollbar_x {
5105 let hitbox = scrollbar_layout.hitbox.clone();
5106 let text_unit_size = scrollbar_layout.text_unit_size;
5107 let visible_range = scrollbar_layout.visible_range.clone();
5108 let thumb_bounds = scrollbar_layout.thumb_bounds();
5109
5110 if scrollbar_layout.visible {
5111 window.paint_layer(hitbox.bounds, |window| {
5112 window.paint_quad(quad(
5113 hitbox.bounds,
5114 Corners::default(),
5115 cx.theme().colors().scrollbar_track_background,
5116 Edges {
5117 top: Pixels::ZERO,
5118 right: Pixels::ZERO,
5119 bottom: Pixels::ZERO,
5120 left: Pixels::ZERO,
5121 },
5122 cx.theme().colors().scrollbar_track_border,
5123 ));
5124
5125 window.paint_quad(quad(
5126 thumb_bounds,
5127 Corners::default(),
5128 cx.theme().colors().scrollbar_thumb_background,
5129 Edges {
5130 top: Pixels::ZERO,
5131 right: Pixels::ZERO,
5132 bottom: Pixels::ZERO,
5133 left: ScrollbarLayout::BORDER_WIDTH,
5134 },
5135 cx.theme().colors().scrollbar_thumb_border,
5136 ));
5137 })
5138 }
5139
5140 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5141
5142 window.on_mouse_event({
5143 let editor = self.editor.clone();
5144
5145 // there may be a way to avoid this clone
5146 let hitbox = hitbox.clone();
5147
5148 let mut mouse_position = window.mouse_position();
5149 move |event: &MouseMoveEvent, phase, window, cx| {
5150 if phase == DispatchPhase::Capture {
5151 return;
5152 }
5153
5154 editor.update(cx, |editor, cx| {
5155 if event.pressed_button == Some(MouseButton::Left)
5156 && editor
5157 .scroll_manager
5158 .is_dragging_scrollbar(Axis::Horizontal)
5159 {
5160 let x = mouse_position.x;
5161 let new_x = event.position.x;
5162 if (hitbox.left()..hitbox.right()).contains(&x) {
5163 let mut position = editor.scroll_position(cx);
5164
5165 position.x += (new_x - x) / text_unit_size;
5166 if position.x < 0.0 {
5167 position.x = 0.0;
5168 }
5169 editor.set_scroll_position(position, window, cx);
5170 }
5171
5172 cx.stop_propagation();
5173 } else {
5174 editor.scroll_manager.set_is_dragging_scrollbar(
5175 Axis::Horizontal,
5176 false,
5177 cx,
5178 );
5179
5180 if hitbox.is_hovered(window) {
5181 editor.scroll_manager.show_scrollbar(window, cx);
5182 }
5183 }
5184 mouse_position = event.position;
5185 })
5186 }
5187 });
5188
5189 if self
5190 .editor
5191 .read(cx)
5192 .scroll_manager
5193 .is_dragging_scrollbar(Axis::Horizontal)
5194 {
5195 window.on_mouse_event({
5196 let editor = self.editor.clone();
5197 move |_: &MouseUpEvent, phase, _, cx| {
5198 if phase == DispatchPhase::Capture {
5199 return;
5200 }
5201
5202 editor.update(cx, |editor, cx| {
5203 editor.scroll_manager.set_is_dragging_scrollbar(
5204 Axis::Horizontal,
5205 false,
5206 cx,
5207 );
5208 cx.stop_propagation();
5209 });
5210 }
5211 });
5212 } else {
5213 window.on_mouse_event({
5214 let editor = self.editor.clone();
5215
5216 move |event: &MouseDownEvent, phase, window, cx| {
5217 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5218 return;
5219 }
5220
5221 editor.update(cx, |editor, cx| {
5222 editor.scroll_manager.set_is_dragging_scrollbar(
5223 Axis::Horizontal,
5224 true,
5225 cx,
5226 );
5227
5228 let x = event.position.x;
5229
5230 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5231 let center_row =
5232 ((x - hitbox.left()) / text_unit_size).round() as u32;
5233 let top_row = center_row.saturating_sub(
5234 (visible_range.end - visible_range.start) as u32 / 2,
5235 );
5236
5237 let mut position = editor.scroll_position(cx);
5238 position.x = top_row as f32;
5239
5240 editor.set_scroll_position(position, window, cx);
5241 } else {
5242 editor.scroll_manager.show_scrollbar(window, cx);
5243 }
5244
5245 cx.stop_propagation();
5246 });
5247 }
5248 });
5249 }
5250 }
5251
5252 if let Some(scrollbar_layout) = scrollbar_y {
5253 let hitbox = scrollbar_layout.hitbox.clone();
5254 let text_unit_size = scrollbar_layout.text_unit_size;
5255 let visible_range = scrollbar_layout.visible_range.clone();
5256 let thumb_bounds = scrollbar_layout.thumb_bounds();
5257
5258 if scrollbar_layout.visible {
5259 window.paint_layer(hitbox.bounds, |window| {
5260 window.paint_quad(quad(
5261 hitbox.bounds,
5262 Corners::default(),
5263 cx.theme().colors().scrollbar_track_background,
5264 Edges {
5265 top: Pixels::ZERO,
5266 right: Pixels::ZERO,
5267 bottom: Pixels::ZERO,
5268 left: ScrollbarLayout::BORDER_WIDTH,
5269 },
5270 cx.theme().colors().scrollbar_track_border,
5271 ));
5272
5273 let fast_markers =
5274 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5275 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5276 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5277
5278 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5279 for marker in markers.iter().chain(&fast_markers) {
5280 let mut marker = marker.clone();
5281 marker.bounds.origin += hitbox.origin;
5282 window.paint_quad(marker);
5283 }
5284
5285 window.paint_quad(quad(
5286 thumb_bounds,
5287 Corners::default(),
5288 cx.theme().colors().scrollbar_thumb_background,
5289 Edges {
5290 top: Pixels::ZERO,
5291 right: Pixels::ZERO,
5292 bottom: Pixels::ZERO,
5293 left: ScrollbarLayout::BORDER_WIDTH,
5294 },
5295 cx.theme().colors().scrollbar_thumb_border,
5296 ));
5297 });
5298 }
5299
5300 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5301
5302 window.on_mouse_event({
5303 let editor = self.editor.clone();
5304
5305 let hitbox = hitbox.clone();
5306
5307 let mut mouse_position = window.mouse_position();
5308 move |event: &MouseMoveEvent, phase, window, cx| {
5309 if phase == DispatchPhase::Capture {
5310 return;
5311 }
5312
5313 editor.update(cx, |editor, cx| {
5314 if event.pressed_button == Some(MouseButton::Left)
5315 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5316 {
5317 let y = mouse_position.y;
5318 let new_y = event.position.y;
5319 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5320 let mut position = editor.scroll_position(cx);
5321 position.y += (new_y - y) / text_unit_size;
5322 if position.y < 0.0 {
5323 position.y = 0.0;
5324 }
5325 editor.set_scroll_position(position, window, cx);
5326 }
5327 } else {
5328 editor.scroll_manager.set_is_dragging_scrollbar(
5329 Axis::Vertical,
5330 false,
5331 cx,
5332 );
5333
5334 if hitbox.is_hovered(window) {
5335 editor.scroll_manager.show_scrollbar(window, cx);
5336 }
5337 }
5338 mouse_position = event.position;
5339 })
5340 }
5341 });
5342
5343 if self
5344 .editor
5345 .read(cx)
5346 .scroll_manager
5347 .is_dragging_scrollbar(Axis::Vertical)
5348 {
5349 window.on_mouse_event({
5350 let editor = self.editor.clone();
5351 move |_: &MouseUpEvent, phase, _, cx| {
5352 if phase == DispatchPhase::Capture {
5353 return;
5354 }
5355
5356 editor.update(cx, |editor, cx| {
5357 editor.scroll_manager.set_is_dragging_scrollbar(
5358 Axis::Vertical,
5359 false,
5360 cx,
5361 );
5362 cx.stop_propagation();
5363 });
5364 }
5365 });
5366 } else {
5367 window.on_mouse_event({
5368 let editor = self.editor.clone();
5369
5370 move |event: &MouseDownEvent, phase, window, cx| {
5371 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5372 return;
5373 }
5374
5375 editor.update(cx, |editor, cx| {
5376 editor.scroll_manager.set_is_dragging_scrollbar(
5377 Axis::Vertical,
5378 true,
5379 cx,
5380 );
5381
5382 let y = event.position.y;
5383 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5384 let center_row =
5385 ((y - hitbox.top()) / text_unit_size).round() as u32;
5386 let top_row = center_row.saturating_sub(
5387 (visible_range.end - visible_range.start) as u32 / 2,
5388 );
5389 let mut position = editor.scroll_position(cx);
5390 position.y = top_row as f32;
5391 editor.set_scroll_position(position, window, cx);
5392 } else {
5393 editor.scroll_manager.show_scrollbar(window, cx);
5394 }
5395
5396 cx.stop_propagation();
5397 });
5398 }
5399 });
5400 }
5401 }
5402 }
5403
5404 fn collect_fast_scrollbar_markers(
5405 &self,
5406 layout: &EditorLayout,
5407 scrollbar_layout: &ScrollbarLayout,
5408 cx: &mut App,
5409 ) -> Vec<PaintQuad> {
5410 const LIMIT: usize = 100;
5411 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5412 return vec![];
5413 }
5414 let cursor_ranges = layout
5415 .cursors
5416 .iter()
5417 .map(|(point, color)| ColoredRange {
5418 start: point.row(),
5419 end: point.row(),
5420 color: *color,
5421 })
5422 .collect_vec();
5423 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5424 }
5425
5426 fn refresh_slow_scrollbar_markers(
5427 &self,
5428 layout: &EditorLayout,
5429 scrollbar_layout: &ScrollbarLayout,
5430 window: &mut Window,
5431 cx: &mut App,
5432 ) {
5433 self.editor.update(cx, |editor, cx| {
5434 if !editor.is_singleton(cx)
5435 || !editor
5436 .scrollbar_marker_state
5437 .should_refresh(scrollbar_layout.hitbox.size)
5438 {
5439 return;
5440 }
5441
5442 let scrollbar_layout = scrollbar_layout.clone();
5443 let background_highlights = editor.background_highlights.clone();
5444 let snapshot = layout.position_map.snapshot.clone();
5445 let theme = cx.theme().clone();
5446 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5447
5448 editor.scrollbar_marker_state.dirty = false;
5449 editor.scrollbar_marker_state.pending_refresh =
5450 Some(cx.spawn_in(window, |editor, mut cx| async move {
5451 let scrollbar_size = scrollbar_layout.hitbox.size;
5452 let scrollbar_markers = cx
5453 .background_spawn(async move {
5454 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5455 let mut marker_quads = Vec::new();
5456 if scrollbar_settings.git_diff {
5457 let marker_row_ranges =
5458 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5459 let start_display_row =
5460 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5461 .to_display_point(&snapshot.display_snapshot)
5462 .row();
5463 let mut end_display_row =
5464 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5465 .to_display_point(&snapshot.display_snapshot)
5466 .row();
5467 if end_display_row != start_display_row {
5468 end_display_row.0 -= 1;
5469 }
5470 let color = match &hunk.status().kind {
5471 DiffHunkStatusKind::Added => theme.status().created,
5472 DiffHunkStatusKind::Modified => theme.status().modified,
5473 DiffHunkStatusKind::Deleted => theme.status().deleted,
5474 };
5475 ColoredRange {
5476 start: start_display_row,
5477 end: end_display_row,
5478 color,
5479 }
5480 });
5481
5482 marker_quads.extend(
5483 scrollbar_layout
5484 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5485 );
5486 }
5487
5488 for (background_highlight_id, (_, background_ranges)) in
5489 background_highlights.iter()
5490 {
5491 let is_search_highlights = *background_highlight_id
5492 == TypeId::of::<BufferSearchHighlights>();
5493 let is_text_highlights = *background_highlight_id
5494 == TypeId::of::<SelectedTextHighlight>();
5495 let is_symbol_occurrences = *background_highlight_id
5496 == TypeId::of::<DocumentHighlightRead>()
5497 || *background_highlight_id
5498 == TypeId::of::<DocumentHighlightWrite>();
5499 if (is_search_highlights && scrollbar_settings.search_results)
5500 || (is_text_highlights && scrollbar_settings.selected_text)
5501 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5502 {
5503 let mut color = theme.status().info;
5504 if is_symbol_occurrences {
5505 color.fade_out(0.5);
5506 }
5507 let marker_row_ranges = background_ranges.iter().map(|range| {
5508 let display_start = range
5509 .start
5510 .to_display_point(&snapshot.display_snapshot);
5511 let display_end =
5512 range.end.to_display_point(&snapshot.display_snapshot);
5513 ColoredRange {
5514 start: display_start.row(),
5515 end: display_end.row(),
5516 color,
5517 }
5518 });
5519 marker_quads.extend(
5520 scrollbar_layout
5521 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5522 );
5523 }
5524 }
5525
5526 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5527 let diagnostics = snapshot
5528 .buffer_snapshot
5529 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5530 // Don't show diagnostics the user doesn't care about
5531 .filter(|diagnostic| {
5532 match (
5533 scrollbar_settings.diagnostics,
5534 diagnostic.diagnostic.severity,
5535 ) {
5536 (ScrollbarDiagnostics::All, _) => true,
5537 (
5538 ScrollbarDiagnostics::Error,
5539 DiagnosticSeverity::ERROR,
5540 ) => true,
5541 (
5542 ScrollbarDiagnostics::Warning,
5543 DiagnosticSeverity::ERROR
5544 | DiagnosticSeverity::WARNING,
5545 ) => true,
5546 (
5547 ScrollbarDiagnostics::Information,
5548 DiagnosticSeverity::ERROR
5549 | DiagnosticSeverity::WARNING
5550 | DiagnosticSeverity::INFORMATION,
5551 ) => true,
5552 (_, _) => false,
5553 }
5554 })
5555 // We want to sort by severity, in order to paint the most severe diagnostics last.
5556 .sorted_by_key(|diagnostic| {
5557 std::cmp::Reverse(diagnostic.diagnostic.severity)
5558 });
5559
5560 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5561 let start_display = diagnostic
5562 .range
5563 .start
5564 .to_display_point(&snapshot.display_snapshot);
5565 let end_display = diagnostic
5566 .range
5567 .end
5568 .to_display_point(&snapshot.display_snapshot);
5569 let color = match diagnostic.diagnostic.severity {
5570 DiagnosticSeverity::ERROR => theme.status().error,
5571 DiagnosticSeverity::WARNING => theme.status().warning,
5572 DiagnosticSeverity::INFORMATION => theme.status().info,
5573 _ => theme.status().hint,
5574 };
5575 ColoredRange {
5576 start: start_display.row(),
5577 end: end_display.row(),
5578 color,
5579 }
5580 });
5581 marker_quads.extend(
5582 scrollbar_layout
5583 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5584 );
5585 }
5586
5587 Arc::from(marker_quads)
5588 })
5589 .await;
5590
5591 editor.update(&mut cx, |editor, cx| {
5592 editor.scrollbar_marker_state.markers = scrollbar_markers;
5593 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5594 editor.scrollbar_marker_state.pending_refresh = None;
5595 cx.notify();
5596 })?;
5597
5598 Ok(())
5599 }));
5600 });
5601 }
5602
5603 #[allow(clippy::too_many_arguments)]
5604 fn paint_highlighted_range(
5605 &self,
5606 range: Range<DisplayPoint>,
5607 color: Hsla,
5608 corner_radius: Pixels,
5609 line_end_overshoot: Pixels,
5610 layout: &EditorLayout,
5611 window: &mut Window,
5612 ) {
5613 let start_row = layout.visible_display_row_range.start;
5614 let end_row = layout.visible_display_row_range.end;
5615 if range.start != range.end {
5616 let row_range = if range.end.column() == 0 {
5617 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5618 } else {
5619 cmp::max(range.start.row(), start_row)
5620 ..cmp::min(range.end.row().next_row(), end_row)
5621 };
5622
5623 let highlighted_range = HighlightedRange {
5624 color,
5625 line_height: layout.position_map.line_height,
5626 corner_radius,
5627 start_y: layout.content_origin.y
5628 + row_range.start.as_f32() * layout.position_map.line_height
5629 - layout.position_map.scroll_pixel_position.y,
5630 lines: row_range
5631 .iter_rows()
5632 .map(|row| {
5633 let line_layout =
5634 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5635 HighlightedRangeLine {
5636 start_x: if row == range.start.row() {
5637 layout.content_origin.x
5638 + line_layout.x_for_index(range.start.column() as usize)
5639 - layout.position_map.scroll_pixel_position.x
5640 } else {
5641 layout.content_origin.x
5642 - layout.position_map.scroll_pixel_position.x
5643 },
5644 end_x: if row == range.end.row() {
5645 layout.content_origin.x
5646 + line_layout.x_for_index(range.end.column() as usize)
5647 - layout.position_map.scroll_pixel_position.x
5648 } else {
5649 layout.content_origin.x + line_layout.width + line_end_overshoot
5650 - layout.position_map.scroll_pixel_position.x
5651 },
5652 }
5653 })
5654 .collect(),
5655 };
5656
5657 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5658 }
5659 }
5660
5661 fn paint_inline_diagnostics(
5662 &mut self,
5663 layout: &mut EditorLayout,
5664 window: &mut Window,
5665 cx: &mut App,
5666 ) {
5667 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5668 inline_diagnostic.1.paint(window, cx);
5669 }
5670 }
5671
5672 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5673 if let Some(mut inline_blame) = layout.inline_blame.take() {
5674 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5675 inline_blame.paint(window, cx);
5676 })
5677 }
5678 }
5679
5680 fn paint_diff_hunk_controls(
5681 &mut self,
5682 layout: &mut EditorLayout,
5683 window: &mut Window,
5684 cx: &mut App,
5685 ) {
5686 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5687 diff_hunk_control.paint(window, cx);
5688 }
5689 }
5690
5691 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5692 for mut block in layout.blocks.drain(..) {
5693 block.element.paint(window, cx);
5694 }
5695 }
5696
5697 fn paint_inline_completion_popover(
5698 &mut self,
5699 layout: &mut EditorLayout,
5700 window: &mut Window,
5701 cx: &mut App,
5702 ) {
5703 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5704 inline_completion_popover.paint(window, cx);
5705 }
5706 }
5707
5708 fn paint_mouse_context_menu(
5709 &mut self,
5710 layout: &mut EditorLayout,
5711 window: &mut Window,
5712 cx: &mut App,
5713 ) {
5714 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5715 mouse_context_menu.paint(window, cx);
5716 }
5717 }
5718
5719 fn paint_scroll_wheel_listener(
5720 &mut self,
5721 layout: &EditorLayout,
5722 window: &mut Window,
5723 cx: &mut App,
5724 ) {
5725 window.on_mouse_event({
5726 let position_map = layout.position_map.clone();
5727 let editor = self.editor.clone();
5728 let hitbox = layout.hitbox.clone();
5729 let mut delta = ScrollDelta::default();
5730
5731 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5732 // accidentally turn off their scrolling.
5733 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5734
5735 move |event: &ScrollWheelEvent, phase, window, cx| {
5736 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5737 delta = delta.coalesce(event.delta);
5738 editor.update(cx, |editor, cx| {
5739 let position_map: &PositionMap = &position_map;
5740
5741 let line_height = position_map.line_height;
5742 let max_glyph_width = position_map.em_width;
5743 let (delta, axis) = match delta {
5744 gpui::ScrollDelta::Pixels(mut pixels) => {
5745 //Trackpad
5746 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5747 (pixels, axis)
5748 }
5749
5750 gpui::ScrollDelta::Lines(lines) => {
5751 //Not trackpad
5752 let pixels =
5753 point(lines.x * max_glyph_width, lines.y * line_height);
5754 (pixels, None)
5755 }
5756 };
5757
5758 let current_scroll_position = position_map.snapshot.scroll_position();
5759 let x = (current_scroll_position.x * max_glyph_width
5760 - (delta.x * scroll_sensitivity))
5761 / max_glyph_width;
5762 let y = (current_scroll_position.y * line_height
5763 - (delta.y * scroll_sensitivity))
5764 / line_height;
5765 let mut scroll_position =
5766 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5767 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5768 if forbid_vertical_scroll {
5769 scroll_position.y = current_scroll_position.y;
5770 }
5771
5772 if scroll_position != current_scroll_position {
5773 editor.scroll(scroll_position, axis, window, cx);
5774 cx.stop_propagation();
5775 } else if y < 0. {
5776 // Due to clamping, we may fail to detect cases of overscroll to the top;
5777 // We want the scroll manager to get an update in such cases and detect the change of direction
5778 // on the next frame.
5779 cx.notify();
5780 }
5781 });
5782 }
5783 }
5784 });
5785 }
5786
5787 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5788 self.paint_scroll_wheel_listener(layout, window, cx);
5789
5790 window.on_mouse_event({
5791 let position_map = layout.position_map.clone();
5792 let editor = self.editor.clone();
5793 let diff_hunk_range =
5794 layout
5795 .display_hunks
5796 .iter()
5797 .find_map(|(hunk, hunk_hitbox)| match hunk {
5798 DisplayDiffHunk::Folded { .. } => None,
5799 DisplayDiffHunk::Unfolded {
5800 multi_buffer_range, ..
5801 } => {
5802 if hunk_hitbox
5803 .as_ref()
5804 .map(|hitbox| hitbox.is_hovered(window))
5805 .unwrap_or(false)
5806 {
5807 Some(multi_buffer_range.clone())
5808 } else {
5809 None
5810 }
5811 }
5812 });
5813 let line_numbers = layout.line_numbers.clone();
5814
5815 move |event: &MouseDownEvent, phase, window, cx| {
5816 if phase == DispatchPhase::Bubble {
5817 match event.button {
5818 MouseButton::Left => editor.update(cx, |editor, cx| {
5819 let pending_mouse_down = editor
5820 .pending_mouse_down
5821 .get_or_insert_with(Default::default)
5822 .clone();
5823
5824 *pending_mouse_down.borrow_mut() = Some(event.clone());
5825
5826 Self::mouse_left_down(
5827 editor,
5828 event,
5829 diff_hunk_range.clone(),
5830 &position_map,
5831 line_numbers.as_ref(),
5832 window,
5833 cx,
5834 );
5835 }),
5836 MouseButton::Right => editor.update(cx, |editor, cx| {
5837 Self::mouse_right_down(editor, event, &position_map, window, cx);
5838 }),
5839 MouseButton::Middle => editor.update(cx, |editor, cx| {
5840 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5841 }),
5842 _ => {}
5843 };
5844 }
5845 }
5846 });
5847
5848 window.on_mouse_event({
5849 let editor = self.editor.clone();
5850 let position_map = layout.position_map.clone();
5851
5852 move |event: &MouseUpEvent, phase, window, cx| {
5853 if phase == DispatchPhase::Bubble {
5854 editor.update(cx, |editor, cx| {
5855 Self::mouse_up(editor, event, &position_map, window, cx)
5856 });
5857 }
5858 }
5859 });
5860
5861 window.on_mouse_event({
5862 let editor = self.editor.clone();
5863 let position_map = layout.position_map.clone();
5864 let mut captured_mouse_down = None;
5865
5866 move |event: &MouseUpEvent, phase, window, cx| match phase {
5867 // Clear the pending mouse down during the capture phase,
5868 // so that it happens even if another event handler stops
5869 // propagation.
5870 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5871 let pending_mouse_down = editor
5872 .pending_mouse_down
5873 .get_or_insert_with(Default::default)
5874 .clone();
5875
5876 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5877 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5878 captured_mouse_down = pending_mouse_down.take();
5879 window.refresh();
5880 }
5881 }),
5882 // Fire click handlers during the bubble phase.
5883 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5884 if let Some(mouse_down) = captured_mouse_down.take() {
5885 let event = ClickEvent {
5886 down: mouse_down,
5887 up: event.clone(),
5888 };
5889 Self::click(editor, &event, &position_map, window, cx);
5890 }
5891 }),
5892 }
5893 });
5894
5895 window.on_mouse_event({
5896 let position_map = layout.position_map.clone();
5897 let editor = self.editor.clone();
5898
5899 move |event: &MouseMoveEvent, phase, window, cx| {
5900 if phase == DispatchPhase::Bubble {
5901 editor.update(cx, |editor, cx| {
5902 if editor.hover_state.focused(window, cx) {
5903 return;
5904 }
5905 if event.pressed_button == Some(MouseButton::Left)
5906 || event.pressed_button == Some(MouseButton::Middle)
5907 {
5908 Self::mouse_dragged(editor, event, &position_map, window, cx)
5909 }
5910
5911 Self::mouse_moved(editor, event, &position_map, window, cx)
5912 });
5913 }
5914 }
5915 });
5916 }
5917
5918 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5919 bounds.top_right().x - self.style.scrollbar_width
5920 }
5921
5922 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5923 let style = &self.style;
5924 let font_size = style.text.font_size.to_pixels(window.rem_size());
5925 let layout = window
5926 .text_system()
5927 .shape_line(
5928 SharedString::from(" ".repeat(column)),
5929 font_size,
5930 &[TextRun {
5931 len: column,
5932 font: style.text.font(),
5933 color: Hsla::default(),
5934 background_color: None,
5935 underline: None,
5936 strikethrough: None,
5937 }],
5938 )
5939 .unwrap();
5940
5941 layout.width
5942 }
5943
5944 fn max_line_number_width(
5945 &self,
5946 snapshot: &EditorSnapshot,
5947 window: &mut Window,
5948 cx: &mut App,
5949 ) -> Pixels {
5950 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5951 self.column_pixels(digit_count, window, cx)
5952 }
5953
5954 fn shape_line_number(
5955 &self,
5956 text: SharedString,
5957 color: Hsla,
5958 window: &mut Window,
5959 ) -> anyhow::Result<ShapedLine> {
5960 let run = TextRun {
5961 len: text.len(),
5962 font: self.style.text.font(),
5963 color,
5964 background_color: None,
5965 underline: None,
5966 strikethrough: None,
5967 };
5968 window.text_system().shape_line(
5969 text,
5970 self.style.text.font_size.to_pixels(window.rem_size()),
5971 &[run],
5972 )
5973 }
5974}
5975
5976fn header_jump_data(
5977 snapshot: &EditorSnapshot,
5978 block_row_start: DisplayRow,
5979 height: u32,
5980 for_excerpt: &ExcerptInfo,
5981) -> JumpData {
5982 let range = &for_excerpt.range;
5983 let buffer = &for_excerpt.buffer;
5984 let jump_anchor = range
5985 .primary
5986 .as_ref()
5987 .map_or(range.context.start, |primary| primary.start);
5988
5989 let excerpt_start = range.context.start;
5990 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5991 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5992 0
5993 } else {
5994 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5995 jump_position.row.saturating_sub(excerpt_start_point.row)
5996 };
5997
5998 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5999 .saturating_sub(
6000 snapshot
6001 .scroll_anchor
6002 .scroll_position(&snapshot.display_snapshot)
6003 .y as u32,
6004 );
6005
6006 JumpData::MultiBufferPoint {
6007 excerpt_id: for_excerpt.id,
6008 anchor: jump_anchor,
6009 position: jump_position,
6010 line_offset_from_top,
6011 }
6012}
6013
6014pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
6015
6016impl AcceptEditPredictionBinding {
6017 pub fn keystroke(&self) -> Option<&Keystroke> {
6018 if let Some(binding) = self.0.as_ref() {
6019 match &binding.keystrokes() {
6020 [keystroke] => Some(keystroke),
6021 _ => None,
6022 }
6023 } else {
6024 None
6025 }
6026 }
6027}
6028
6029#[allow(clippy::too_many_arguments)]
6030fn prepaint_gutter_button(
6031 button: IconButton,
6032 row: DisplayRow,
6033 line_height: Pixels,
6034 gutter_dimensions: &GutterDimensions,
6035 scroll_pixel_position: gpui::Point<Pixels>,
6036 gutter_hitbox: &Hitbox,
6037 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
6038 window: &mut Window,
6039 cx: &mut App,
6040) -> AnyElement {
6041 let mut button = button.into_any_element();
6042 let available_space = size(
6043 AvailableSpace::MinContent,
6044 AvailableSpace::Definite(line_height),
6045 );
6046 let indicator_size = button.layout_as_root(available_space, window, cx);
6047
6048 let blame_width = gutter_dimensions.git_blame_entries_width;
6049 let gutter_width = rows_with_hunk_bounds
6050 .get(&row)
6051 .map(|bounds| bounds.size.width);
6052 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
6053
6054 let mut x = left_offset;
6055 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
6056 - indicator_size.width
6057 - left_offset;
6058 x += available_width / 2.;
6059
6060 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
6061 y += (line_height - indicator_size.height) / 2.;
6062
6063 button.prepaint_as_root(
6064 gutter_hitbox.origin + point(x, y),
6065 available_space,
6066 window,
6067 cx,
6068 );
6069 button
6070}
6071
6072fn render_inline_blame_entry(
6073 editor: Entity<Editor>,
6074 blame: &gpui::Entity<GitBlame>,
6075 blame_entry: BlameEntry,
6076 style: &EditorStyle,
6077 cx: &mut App,
6078) -> AnyElement {
6079 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
6080
6081 let author = blame_entry.author.as_deref().unwrap_or_default();
6082 let summary_enabled = ProjectSettings::get_global(cx)
6083 .git
6084 .show_inline_commit_summary();
6085
6086 let text = match blame_entry.summary.as_ref() {
6087 Some(summary) if summary_enabled => {
6088 format!("{}, {} - {}", author, relative_timestamp, summary)
6089 }
6090 _ => format!("{}, {}", author, relative_timestamp),
6091 };
6092 let blame = blame.clone();
6093 let blame_entry = blame_entry.clone();
6094
6095 h_flex()
6096 .id("inline-blame")
6097 .w_full()
6098 .font_family(style.text.font().family)
6099 .text_color(cx.theme().status().hint)
6100 .line_height(style.text.line_height)
6101 .child(Icon::new(IconName::FileGit).color(Color::Hint))
6102 .child(text)
6103 .gap_2()
6104 .hoverable_tooltip(move |window, cx| {
6105 let details = blame.read(cx).details_for_entry(&blame_entry);
6106 let tooltip =
6107 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
6108 editor.update(cx, |editor, _| {
6109 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
6110 });
6111 tooltip.into()
6112 })
6113 .into_any()
6114}
6115
6116fn render_blame_entry(
6117 ix: usize,
6118 blame: &gpui::Entity<GitBlame>,
6119 blame_entry: BlameEntry,
6120 style: &EditorStyle,
6121 last_used_color: &mut Option<(PlayerColor, Oid)>,
6122 editor: Entity<Editor>,
6123 cx: &mut App,
6124) -> AnyElement {
6125 let mut sha_color = cx
6126 .theme()
6127 .players()
6128 .color_for_participant(blame_entry.sha.into());
6129 // If the last color we used is the same as the one we get for this line, but
6130 // the commit SHAs are different, then we try again to get a different color.
6131 match *last_used_color {
6132 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
6133 let index: u32 = blame_entry.sha.into();
6134 sha_color = cx.theme().players().color_for_participant(index + 1);
6135 }
6136 _ => {}
6137 };
6138 last_used_color.replace((sha_color, blame_entry.sha));
6139
6140 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
6141
6142 let short_commit_id = blame_entry.sha.display_short();
6143
6144 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
6145 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
6146 let details = blame.read(cx).details_for_entry(&blame_entry);
6147
6148 h_flex()
6149 .w_full()
6150 .justify_between()
6151 .font_family(style.text.font().family)
6152 .line_height(style.text.line_height)
6153 .id(("blame", ix))
6154 .text_color(cx.theme().status().hint)
6155 .pr_2()
6156 .gap_2()
6157 .child(
6158 h_flex()
6159 .items_center()
6160 .gap_2()
6161 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6162 .child(name),
6163 )
6164 .child(relative_timestamp)
6165 .on_mouse_down(MouseButton::Right, {
6166 let blame_entry = blame_entry.clone();
6167 let details = details.clone();
6168 move |event, window, cx| {
6169 deploy_blame_entry_context_menu(
6170 &blame_entry,
6171 details.as_ref(),
6172 editor.clone(),
6173 event.position,
6174 window,
6175 cx,
6176 );
6177 }
6178 })
6179 .hover(|style| style.bg(cx.theme().colors().element_hover))
6180 .when_some(
6181 details
6182 .as_ref()
6183 .and_then(|details| details.permalink.clone()),
6184 |this, url| {
6185 this.cursor_pointer().on_click(move |_, _, cx| {
6186 cx.stop_propagation();
6187 cx.open_url(url.as_str())
6188 })
6189 },
6190 )
6191 .hoverable_tooltip(move |window, cx| {
6192 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
6193 .into()
6194 })
6195 .into_any()
6196}
6197
6198fn deploy_blame_entry_context_menu(
6199 blame_entry: &BlameEntry,
6200 details: Option<&ParsedCommitMessage>,
6201 editor: Entity<Editor>,
6202 position: gpui::Point<Pixels>,
6203 window: &mut Window,
6204 cx: &mut App,
6205) {
6206 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6207 let sha = format!("{}", blame_entry.sha);
6208 menu.on_blur_subscription(Subscription::new(|| {}))
6209 .entry("Copy commit SHA", None, move |_, cx| {
6210 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6211 })
6212 .when_some(
6213 details.and_then(|details| details.permalink.clone()),
6214 |this, url| {
6215 this.entry("Open permalink", None, move |_, cx| {
6216 cx.open_url(url.as_str())
6217 })
6218 },
6219 )
6220 });
6221
6222 editor.update(cx, move |editor, cx| {
6223 editor.mouse_context_menu = Some(MouseContextMenu::new(
6224 MenuPosition::PinnedToScreen(position),
6225 context_menu,
6226 window,
6227 cx,
6228 ));
6229 cx.notify();
6230 });
6231}
6232
6233#[derive(Debug)]
6234pub(crate) struct LineWithInvisibles {
6235 fragments: SmallVec<[LineFragment; 1]>,
6236 invisibles: Vec<Invisible>,
6237 len: usize,
6238 width: Pixels,
6239 font_size: Pixels,
6240}
6241
6242#[allow(clippy::large_enum_variant)]
6243enum LineFragment {
6244 Text(ShapedLine),
6245 Element {
6246 element: Option<AnyElement>,
6247 size: Size<Pixels>,
6248 len: usize,
6249 },
6250}
6251
6252impl fmt::Debug for LineFragment {
6253 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6254 match self {
6255 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6256 LineFragment::Element { size, len, .. } => f
6257 .debug_struct("Element")
6258 .field("size", size)
6259 .field("len", len)
6260 .finish(),
6261 }
6262 }
6263}
6264
6265impl LineWithInvisibles {
6266 #[allow(clippy::too_many_arguments)]
6267 fn from_chunks<'a>(
6268 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6269 editor_style: &EditorStyle,
6270 max_line_len: usize,
6271 max_line_count: usize,
6272 editor_mode: EditorMode,
6273 text_width: Pixels,
6274 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6275 window: &mut Window,
6276 cx: &mut App,
6277 ) -> Vec<Self> {
6278 let text_style = &editor_style.text;
6279 let mut layouts = Vec::with_capacity(max_line_count);
6280 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6281 let mut line = String::new();
6282 let mut invisibles = Vec::new();
6283 let mut width = Pixels::ZERO;
6284 let mut len = 0;
6285 let mut styles = Vec::new();
6286 let mut non_whitespace_added = false;
6287 let mut row = 0;
6288 let mut line_exceeded_max_len = false;
6289 let font_size = text_style.font_size.to_pixels(window.rem_size());
6290
6291 let ellipsis = SharedString::from("⋯");
6292
6293 for highlighted_chunk in chunks.chain([HighlightedChunk {
6294 text: "\n",
6295 style: None,
6296 is_tab: false,
6297 replacement: None,
6298 }]) {
6299 if let Some(replacement) = highlighted_chunk.replacement {
6300 if !line.is_empty() {
6301 let shaped_line = window
6302 .text_system()
6303 .shape_line(line.clone().into(), font_size, &styles)
6304 .unwrap();
6305 width += shaped_line.width;
6306 len += shaped_line.len;
6307 fragments.push(LineFragment::Text(shaped_line));
6308 line.clear();
6309 styles.clear();
6310 }
6311
6312 match replacement {
6313 ChunkReplacement::Renderer(renderer) => {
6314 let available_width = if renderer.constrain_width {
6315 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6316 ellipsis.clone()
6317 } else {
6318 SharedString::from(Arc::from(highlighted_chunk.text))
6319 };
6320 let shaped_line = window
6321 .text_system()
6322 .shape_line(
6323 chunk,
6324 font_size,
6325 &[text_style.to_run(highlighted_chunk.text.len())],
6326 )
6327 .unwrap();
6328 AvailableSpace::Definite(shaped_line.width)
6329 } else {
6330 AvailableSpace::MinContent
6331 };
6332
6333 let mut element = (renderer.render)(&mut ChunkRendererContext {
6334 context: cx,
6335 window,
6336 max_width: text_width,
6337 });
6338 let line_height = text_style.line_height_in_pixels(window.rem_size());
6339 let size = element.layout_as_root(
6340 size(available_width, AvailableSpace::Definite(line_height)),
6341 window,
6342 cx,
6343 );
6344
6345 width += size.width;
6346 len += highlighted_chunk.text.len();
6347 fragments.push(LineFragment::Element {
6348 element: Some(element),
6349 size,
6350 len: highlighted_chunk.text.len(),
6351 });
6352 }
6353 ChunkReplacement::Str(x) => {
6354 let text_style = if let Some(style) = highlighted_chunk.style {
6355 Cow::Owned(text_style.clone().highlight(style))
6356 } else {
6357 Cow::Borrowed(text_style)
6358 };
6359
6360 let run = TextRun {
6361 len: x.len(),
6362 font: text_style.font(),
6363 color: text_style.color,
6364 background_color: text_style.background_color,
6365 underline: text_style.underline,
6366 strikethrough: text_style.strikethrough,
6367 };
6368 let line_layout = window
6369 .text_system()
6370 .shape_line(x, font_size, &[run])
6371 .unwrap()
6372 .with_len(highlighted_chunk.text.len());
6373
6374 width += line_layout.width;
6375 len += highlighted_chunk.text.len();
6376 fragments.push(LineFragment::Text(line_layout))
6377 }
6378 }
6379 } else {
6380 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6381 if ix > 0 {
6382 let shaped_line = window
6383 .text_system()
6384 .shape_line(line.clone().into(), font_size, &styles)
6385 .unwrap();
6386 width += shaped_line.width;
6387 len += shaped_line.len;
6388 fragments.push(LineFragment::Text(shaped_line));
6389 layouts.push(Self {
6390 width: mem::take(&mut width),
6391 len: mem::take(&mut len),
6392 fragments: mem::take(&mut fragments),
6393 invisibles: std::mem::take(&mut invisibles),
6394 font_size,
6395 });
6396
6397 line.clear();
6398 styles.clear();
6399 row += 1;
6400 line_exceeded_max_len = false;
6401 non_whitespace_added = false;
6402 if row == max_line_count {
6403 return layouts;
6404 }
6405 }
6406
6407 if !line_chunk.is_empty() && !line_exceeded_max_len {
6408 let text_style = if let Some(style) = highlighted_chunk.style {
6409 Cow::Owned(text_style.clone().highlight(style))
6410 } else {
6411 Cow::Borrowed(text_style)
6412 };
6413
6414 if line.len() + line_chunk.len() > max_line_len {
6415 let mut chunk_len = max_line_len - line.len();
6416 while !line_chunk.is_char_boundary(chunk_len) {
6417 chunk_len -= 1;
6418 }
6419 line_chunk = &line_chunk[..chunk_len];
6420 line_exceeded_max_len = true;
6421 }
6422
6423 styles.push(TextRun {
6424 len: line_chunk.len(),
6425 font: text_style.font(),
6426 color: text_style.color,
6427 background_color: text_style.background_color,
6428 underline: text_style.underline,
6429 strikethrough: text_style.strikethrough,
6430 });
6431
6432 if editor_mode == EditorMode::Full {
6433 // Line wrap pads its contents with fake whitespaces,
6434 // avoid printing them
6435 let is_soft_wrapped = is_row_soft_wrapped(row);
6436 if highlighted_chunk.is_tab {
6437 if non_whitespace_added || !is_soft_wrapped {
6438 invisibles.push(Invisible::Tab {
6439 line_start_offset: line.len(),
6440 line_end_offset: line.len() + line_chunk.len(),
6441 });
6442 }
6443 } else {
6444 invisibles.extend(line_chunk.char_indices().filter_map(
6445 |(index, c)| {
6446 let is_whitespace = c.is_whitespace();
6447 non_whitespace_added |= !is_whitespace;
6448 if is_whitespace
6449 && (non_whitespace_added || !is_soft_wrapped)
6450 {
6451 Some(Invisible::Whitespace {
6452 line_offset: line.len() + index,
6453 })
6454 } else {
6455 None
6456 }
6457 },
6458 ))
6459 }
6460 }
6461
6462 line.push_str(line_chunk);
6463 }
6464 }
6465 }
6466 }
6467
6468 layouts
6469 }
6470
6471 #[allow(clippy::too_many_arguments)]
6472 fn prepaint(
6473 &mut self,
6474 line_height: Pixels,
6475 scroll_pixel_position: gpui::Point<Pixels>,
6476 row: DisplayRow,
6477 content_origin: gpui::Point<Pixels>,
6478 line_elements: &mut SmallVec<[AnyElement; 1]>,
6479 window: &mut Window,
6480 cx: &mut App,
6481 ) {
6482 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6483 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6484 for fragment in &mut self.fragments {
6485 match fragment {
6486 LineFragment::Text(line) => {
6487 fragment_origin.x += line.width;
6488 }
6489 LineFragment::Element { element, size, .. } => {
6490 let mut element = element
6491 .take()
6492 .expect("you can't prepaint LineWithInvisibles twice");
6493
6494 // Center the element vertically within the line.
6495 let mut element_origin = fragment_origin;
6496 element_origin.y += (line_height - size.height) / 2.;
6497 element.prepaint_at(element_origin, window, cx);
6498 line_elements.push(element);
6499
6500 fragment_origin.x += size.width;
6501 }
6502 }
6503 }
6504 }
6505
6506 #[allow(clippy::too_many_arguments)]
6507 fn draw(
6508 &self,
6509 layout: &EditorLayout,
6510 row: DisplayRow,
6511 content_origin: gpui::Point<Pixels>,
6512 whitespace_setting: ShowWhitespaceSetting,
6513 selection_ranges: &[Range<DisplayPoint>],
6514 window: &mut Window,
6515 cx: &mut App,
6516 ) {
6517 let line_height = layout.position_map.line_height;
6518 let line_y = line_height
6519 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6520
6521 let mut fragment_origin =
6522 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6523
6524 for fragment in &self.fragments {
6525 match fragment {
6526 LineFragment::Text(line) => {
6527 line.paint(fragment_origin, line_height, window, cx)
6528 .log_err();
6529 fragment_origin.x += line.width;
6530 }
6531 LineFragment::Element { size, .. } => {
6532 fragment_origin.x += size.width;
6533 }
6534 }
6535 }
6536
6537 self.draw_invisibles(
6538 selection_ranges,
6539 layout,
6540 content_origin,
6541 line_y,
6542 row,
6543 line_height,
6544 whitespace_setting,
6545 window,
6546 cx,
6547 );
6548 }
6549
6550 #[allow(clippy::too_many_arguments)]
6551 fn draw_invisibles(
6552 &self,
6553 selection_ranges: &[Range<DisplayPoint>],
6554 layout: &EditorLayout,
6555 content_origin: gpui::Point<Pixels>,
6556 line_y: Pixels,
6557 row: DisplayRow,
6558 line_height: Pixels,
6559 whitespace_setting: ShowWhitespaceSetting,
6560 window: &mut Window,
6561 cx: &mut App,
6562 ) {
6563 let extract_whitespace_info = |invisible: &Invisible| {
6564 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6565 Invisible::Tab {
6566 line_start_offset,
6567 line_end_offset,
6568 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6569 Invisible::Whitespace { line_offset } => {
6570 (*line_offset, line_offset + 1, &layout.space_invisible)
6571 }
6572 };
6573
6574 let x_offset = self.x_for_index(token_offset);
6575 let invisible_offset =
6576 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6577 let origin = content_origin
6578 + gpui::point(
6579 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6580 line_y,
6581 );
6582
6583 (
6584 [token_offset, token_end_offset],
6585 Box::new(move |window: &mut Window, cx: &mut App| {
6586 invisible_symbol
6587 .paint(origin, line_height, window, cx)
6588 .log_err();
6589 }),
6590 )
6591 };
6592
6593 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6594 match whitespace_setting {
6595 ShowWhitespaceSetting::None => (),
6596 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6597 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6598 let invisible_point = DisplayPoint::new(row, start as u32);
6599 if !selection_ranges
6600 .iter()
6601 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6602 {
6603 return;
6604 }
6605
6606 paint(window, cx);
6607 }),
6608
6609 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6610 // - It is a tab
6611 // - It is adjacent to an edge (start or end)
6612 // - It is adjacent to a whitespace (left or right)
6613 ShowWhitespaceSetting::Boundary => {
6614 // 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
6615 // the above cases.
6616 // Note: We zip in the original `invisibles` to check for tab equality
6617 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6618 for (([start, end], paint), invisible) in
6619 invisible_iter.zip_eq(self.invisibles.iter())
6620 {
6621 let should_render = match (&last_seen, invisible) {
6622 (_, Invisible::Tab { .. }) => true,
6623 (Some((_, last_end, _)), _) => *last_end == start,
6624 _ => false,
6625 };
6626
6627 if should_render || start == 0 || end == self.len {
6628 paint(window, cx);
6629
6630 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6631 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6632 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6633 // Note that we need to make sure that the last one is actually adjacent
6634 if !should_render_last && last_end == start {
6635 paint_last(window, cx);
6636 }
6637 }
6638 }
6639
6640 // Manually render anything within a selection
6641 let invisible_point = DisplayPoint::new(row, start as u32);
6642 if selection_ranges.iter().any(|region| {
6643 region.start <= invisible_point && invisible_point < region.end
6644 }) {
6645 paint(window, cx);
6646 }
6647
6648 last_seen = Some((should_render, end, paint));
6649 }
6650 }
6651 }
6652 }
6653
6654 pub fn x_for_index(&self, index: usize) -> Pixels {
6655 let mut fragment_start_x = Pixels::ZERO;
6656 let mut fragment_start_index = 0;
6657
6658 for fragment in &self.fragments {
6659 match fragment {
6660 LineFragment::Text(shaped_line) => {
6661 let fragment_end_index = fragment_start_index + shaped_line.len;
6662 if index < fragment_end_index {
6663 return fragment_start_x
6664 + shaped_line.x_for_index(index - fragment_start_index);
6665 }
6666 fragment_start_x += shaped_line.width;
6667 fragment_start_index = fragment_end_index;
6668 }
6669 LineFragment::Element { len, size, .. } => {
6670 let fragment_end_index = fragment_start_index + len;
6671 if index < fragment_end_index {
6672 return fragment_start_x;
6673 }
6674 fragment_start_x += size.width;
6675 fragment_start_index = fragment_end_index;
6676 }
6677 }
6678 }
6679
6680 fragment_start_x
6681 }
6682
6683 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6684 let mut fragment_start_x = Pixels::ZERO;
6685 let mut fragment_start_index = 0;
6686
6687 for fragment in &self.fragments {
6688 match fragment {
6689 LineFragment::Text(shaped_line) => {
6690 let fragment_end_x = fragment_start_x + shaped_line.width;
6691 if x < fragment_end_x {
6692 return Some(
6693 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6694 );
6695 }
6696 fragment_start_x = fragment_end_x;
6697 fragment_start_index += shaped_line.len;
6698 }
6699 LineFragment::Element { len, size, .. } => {
6700 let fragment_end_x = fragment_start_x + size.width;
6701 if x < fragment_end_x {
6702 return Some(fragment_start_index);
6703 }
6704 fragment_start_index += len;
6705 fragment_start_x = fragment_end_x;
6706 }
6707 }
6708 }
6709
6710 None
6711 }
6712
6713 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6714 let mut fragment_start_index = 0;
6715
6716 for fragment in &self.fragments {
6717 match fragment {
6718 LineFragment::Text(shaped_line) => {
6719 let fragment_end_index = fragment_start_index + shaped_line.len;
6720 if index < fragment_end_index {
6721 return shaped_line.font_id_for_index(index - fragment_start_index);
6722 }
6723 fragment_start_index = fragment_end_index;
6724 }
6725 LineFragment::Element { len, .. } => {
6726 let fragment_end_index = fragment_start_index + len;
6727 if index < fragment_end_index {
6728 return None;
6729 }
6730 fragment_start_index = fragment_end_index;
6731 }
6732 }
6733 }
6734
6735 None
6736 }
6737}
6738
6739#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6740enum Invisible {
6741 /// A tab character
6742 ///
6743 /// A tab character is internally represented by spaces (configured by the user's tab width)
6744 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6745 /// adjacency checks.
6746 Tab {
6747 line_start_offset: usize,
6748 line_end_offset: usize,
6749 },
6750 Whitespace {
6751 line_offset: usize,
6752 },
6753}
6754
6755impl EditorElement {
6756 /// Returns the rem size to use when rendering the [`EditorElement`].
6757 ///
6758 /// This allows UI elements to scale based on the `buffer_font_size`.
6759 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6760 match self.editor.read(cx).mode {
6761 EditorMode::Full => {
6762 let buffer_font_size = self.style.text.font_size;
6763 match buffer_font_size {
6764 AbsoluteLength::Pixels(pixels) => {
6765 let rem_size_scale = {
6766 // Our default UI font size is 14px on a 16px base scale.
6767 // This means the default UI font size is 0.875rems.
6768 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6769
6770 // We then determine the delta between a single rem and the default font
6771 // size scale.
6772 let default_font_size_delta = 1. - default_font_size_scale;
6773
6774 // Finally, we add this delta to 1rem to get the scale factor that
6775 // should be used to scale up the UI.
6776 1. + default_font_size_delta
6777 };
6778
6779 Some(pixels * rem_size_scale)
6780 }
6781 AbsoluteLength::Rems(rems) => {
6782 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6783 }
6784 }
6785 }
6786 // We currently use single-line and auto-height editors in UI contexts,
6787 // so we don't want to scale everything with the buffer font size, as it
6788 // ends up looking off.
6789 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6790 }
6791 }
6792}
6793
6794impl Element for EditorElement {
6795 type RequestLayoutState = ();
6796 type PrepaintState = EditorLayout;
6797
6798 fn id(&self) -> Option<ElementId> {
6799 None
6800 }
6801
6802 fn request_layout(
6803 &mut self,
6804 _: Option<&GlobalElementId>,
6805 window: &mut Window,
6806 cx: &mut App,
6807 ) -> (gpui::LayoutId, ()) {
6808 let rem_size = self.rem_size(cx);
6809 window.with_rem_size(rem_size, |window| {
6810 self.editor.update(cx, |editor, cx| {
6811 editor.set_style(self.style.clone(), window, cx);
6812
6813 let layout_id = match editor.mode {
6814 EditorMode::SingleLine { auto_width } => {
6815 let rem_size = window.rem_size();
6816
6817 let height = self.style.text.line_height_in_pixels(rem_size);
6818 if auto_width {
6819 let editor_handle = cx.entity().clone();
6820 let style = self.style.clone();
6821 window.request_measured_layout(
6822 Style::default(),
6823 move |_, _, window, cx| {
6824 let editor_snapshot = editor_handle
6825 .update(cx, |editor, cx| editor.snapshot(window, cx));
6826 let line = Self::layout_lines(
6827 DisplayRow(0)..DisplayRow(1),
6828 &editor_snapshot,
6829 &style,
6830 px(f32::MAX),
6831 |_| false, // Single lines never soft wrap
6832 window,
6833 cx,
6834 )
6835 .pop()
6836 .unwrap();
6837
6838 let font_id =
6839 window.text_system().resolve_font(&style.text.font());
6840 let font_size =
6841 style.text.font_size.to_pixels(window.rem_size());
6842 let em_width =
6843 window.text_system().em_width(font_id, font_size).unwrap();
6844
6845 size(line.width + em_width, height)
6846 },
6847 )
6848 } else {
6849 let mut style = Style::default();
6850 style.size.height = height.into();
6851 style.size.width = relative(1.).into();
6852 window.request_layout(style, None, cx)
6853 }
6854 }
6855 EditorMode::AutoHeight { max_lines } => {
6856 let editor_handle = cx.entity().clone();
6857 let max_line_number_width =
6858 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6859 window.request_measured_layout(
6860 Style::default(),
6861 move |known_dimensions, available_space, window, cx| {
6862 editor_handle
6863 .update(cx, |editor, cx| {
6864 compute_auto_height_layout(
6865 editor,
6866 max_lines,
6867 max_line_number_width,
6868 known_dimensions,
6869 available_space.width,
6870 window,
6871 cx,
6872 )
6873 })
6874 .unwrap_or_default()
6875 },
6876 )
6877 }
6878 EditorMode::Full => {
6879 let mut style = Style::default();
6880 style.size.width = relative(1.).into();
6881 style.size.height = relative(1.).into();
6882 window.request_layout(style, None, cx)
6883 }
6884 };
6885
6886 (layout_id, ())
6887 })
6888 })
6889 }
6890
6891 fn prepaint(
6892 &mut self,
6893 _: Option<&GlobalElementId>,
6894 bounds: Bounds<Pixels>,
6895 _: &mut Self::RequestLayoutState,
6896 window: &mut Window,
6897 cx: &mut App,
6898 ) -> Self::PrepaintState {
6899 let text_style = TextStyleRefinement {
6900 font_size: Some(self.style.text.font_size),
6901 line_height: Some(self.style.text.line_height),
6902 ..Default::default()
6903 };
6904 let focus_handle = self.editor.focus_handle(cx);
6905 window.set_view_id(self.editor.entity_id());
6906 window.set_focus_handle(&focus_handle, cx);
6907
6908 let rem_size = self.rem_size(cx);
6909 window.with_rem_size(rem_size, |window| {
6910 window.with_text_style(Some(text_style), |window| {
6911 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6912 let mut snapshot = self
6913 .editor
6914 .update(cx, |editor, cx| editor.snapshot(window, cx));
6915 let style = self.style.clone();
6916
6917 let font_id = window.text_system().resolve_font(&style.text.font());
6918 let font_size = style.text.font_size.to_pixels(window.rem_size());
6919 let line_height = style.text.line_height_in_pixels(window.rem_size());
6920 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6921 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6922
6923 let letter_size = size(em_width, line_height);
6924
6925 let gutter_dimensions = snapshot
6926 .gutter_dimensions(
6927 font_id,
6928 font_size,
6929 self.max_line_number_width(&snapshot, window, cx),
6930 cx,
6931 )
6932 .unwrap_or_default();
6933 let text_width = bounds.size.width - gutter_dimensions.width;
6934
6935 let editor_width =
6936 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6937
6938 snapshot = self.editor.update(cx, |editor, cx| {
6939 editor.last_bounds = Some(bounds);
6940 editor.gutter_dimensions = gutter_dimensions;
6941 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6942
6943 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6944 snapshot
6945 } else {
6946 let wrap_width = match editor.soft_wrap_mode(cx) {
6947 SoftWrap::GitDiff => None,
6948 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6949 SoftWrap::EditorWidth => Some(editor_width),
6950 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6951 SoftWrap::Bounded(column) => {
6952 Some(editor_width.min(column as f32 * em_advance))
6953 }
6954 };
6955
6956 if editor.set_wrap_width(wrap_width, cx) {
6957 editor.snapshot(window, cx)
6958 } else {
6959 snapshot
6960 }
6961 }
6962 });
6963
6964 let wrap_guides = self
6965 .editor
6966 .read(cx)
6967 .wrap_guides(cx)
6968 .iter()
6969 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6970 .collect::<SmallVec<[_; 2]>>();
6971
6972 let hitbox = window.insert_hitbox(bounds, false);
6973 let gutter_hitbox =
6974 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6975 let text_hitbox = window.insert_hitbox(
6976 Bounds {
6977 origin: gutter_hitbox.top_right(),
6978 size: size(text_width, bounds.size.height),
6979 },
6980 false,
6981 );
6982
6983 // Offset the content_bounds from the text_bounds by the gutter margin (which
6984 // is roughly half a character wide) to make hit testing work more like how we want.
6985 let content_origin =
6986 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6987
6988 let scrollbar_bounds =
6989 Bounds::from_corners(content_origin, bounds.bottom_right());
6990
6991 let height_in_lines = scrollbar_bounds.size.height / line_height;
6992
6993 // NOTE: The max row number in the current file, minus one
6994 let max_row = snapshot.max_point().row().as_f32();
6995
6996 // NOTE: The max scroll position for the top of the window
6997 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6998 (max_row - height_in_lines + 1.).max(0.)
6999 } else {
7000 let settings = EditorSettings::get_global(cx);
7001 match settings.scroll_beyond_last_line {
7002 ScrollBeyondLastLine::OnePage => max_row,
7003 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
7004 ScrollBeyondLastLine::VerticalScrollMargin => {
7005 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
7006 .max(0.)
7007 }
7008 }
7009 };
7010
7011 // TODO: Autoscrolling for both axes
7012 let mut autoscroll_request = None;
7013 let mut autoscroll_containing_element = false;
7014 let mut autoscroll_horizontally = false;
7015 self.editor.update(cx, |editor, cx| {
7016 autoscroll_request = editor.autoscroll_request();
7017 autoscroll_containing_element =
7018 autoscroll_request.is_some() || editor.has_pending_selection();
7019 // TODO: Is this horizontal or vertical?!
7020 autoscroll_horizontally = editor.autoscroll_vertically(
7021 bounds,
7022 line_height,
7023 max_scroll_top,
7024 window,
7025 cx,
7026 );
7027 snapshot = editor.snapshot(window, cx);
7028 });
7029
7030 let mut scroll_position = snapshot.scroll_position();
7031 // The scroll position is a fractional point, the whole number of which represents
7032 // the top of the window in terms of display rows.
7033 let start_row = DisplayRow(scroll_position.y as u32);
7034 let max_row = snapshot.max_point().row();
7035 let end_row = cmp::min(
7036 (scroll_position.y + height_in_lines).ceil() as u32,
7037 max_row.next_row().0,
7038 );
7039 let end_row = DisplayRow(end_row);
7040
7041 let row_infos = snapshot
7042 .row_infos(start_row)
7043 .take((start_row..end_row).len())
7044 .collect::<Vec<RowInfo>>();
7045 let is_row_soft_wrapped = |row: usize| {
7046 row_infos
7047 .get(row)
7048 .map_or(true, |info| info.buffer_row.is_none())
7049 };
7050
7051 let start_anchor = if start_row == Default::default() {
7052 Anchor::min()
7053 } else {
7054 snapshot.buffer_snapshot.anchor_before(
7055 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
7056 )
7057 };
7058 let end_anchor = if end_row > max_row {
7059 Anchor::max()
7060 } else {
7061 snapshot.buffer_snapshot.anchor_before(
7062 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
7063 )
7064 };
7065
7066 let mut highlighted_rows = self
7067 .editor
7068 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
7069
7070 for (ix, row_info) in row_infos.iter().enumerate() {
7071 let Some(diff_status) = row_info.diff_status else {
7072 continue;
7073 };
7074
7075 let staged_opacity = 0.10;
7076 let unstaged_opacity = 0.04;
7077
7078 let background_color = match diff_status.kind {
7079 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
7080 DiffHunkStatusKind::Deleted => {
7081 cx.theme().colors().version_control_deleted
7082 }
7083 DiffHunkStatusKind::Modified => {
7084 debug_panic!("modified diff status for row info");
7085 continue;
7086 }
7087 };
7088 let background_color =
7089 if diff_status.secondary == DiffHunkSecondaryStatus::None {
7090 background_color.opacity(staged_opacity)
7091 } else {
7092 background_color.opacity(unstaged_opacity)
7093 };
7094
7095 highlighted_rows
7096 .entry(start_row + DisplayRow(ix as u32))
7097 .or_insert(background_color.into());
7098 }
7099
7100 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
7101 start_anchor..end_anchor,
7102 &snapshot.display_snapshot,
7103 cx.theme().colors(),
7104 );
7105 let highlighted_gutter_ranges =
7106 self.editor.read(cx).gutter_highlights_in_range(
7107 start_anchor..end_anchor,
7108 &snapshot.display_snapshot,
7109 cx,
7110 );
7111
7112 let redacted_ranges = self.editor.read(cx).redacted_ranges(
7113 start_anchor..end_anchor,
7114 &snapshot.display_snapshot,
7115 cx,
7116 );
7117
7118 let (local_selections, selected_buffer_ids): (
7119 Vec<Selection<Point>>,
7120 Vec<BufferId>,
7121 ) = self.editor.update(cx, |editor, cx| {
7122 let all_selections = editor.selections.all::<Point>(cx);
7123 let selected_buffer_ids = if editor.is_singleton(cx) {
7124 Vec::new()
7125 } else {
7126 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
7127
7128 for selection in all_selections {
7129 for buffer_id in snapshot
7130 .buffer_snapshot
7131 .buffer_ids_for_range(selection.range())
7132 {
7133 if selected_buffer_ids.last() != Some(&buffer_id) {
7134 selected_buffer_ids.push(buffer_id);
7135 }
7136 }
7137 }
7138
7139 selected_buffer_ids
7140 };
7141
7142 let mut selections = editor
7143 .selections
7144 .disjoint_in_range(start_anchor..end_anchor, cx);
7145 selections.extend(editor.selections.pending(cx));
7146
7147 (selections, selected_buffer_ids)
7148 });
7149
7150 let (selections, active_rows, newest_selection_head) = self.layout_selections(
7151 start_anchor,
7152 end_anchor,
7153 &local_selections,
7154 &snapshot,
7155 start_row,
7156 end_row,
7157 window,
7158 cx,
7159 );
7160
7161 let line_numbers = self.layout_line_numbers(
7162 Some(&gutter_hitbox),
7163 gutter_dimensions,
7164 line_height,
7165 scroll_position,
7166 start_row..end_row,
7167 &row_infos,
7168 newest_selection_head,
7169 &snapshot,
7170 window,
7171 cx,
7172 );
7173
7174 let mut crease_toggles =
7175 window.with_element_namespace("crease_toggles", |window| {
7176 self.layout_crease_toggles(
7177 start_row..end_row,
7178 &row_infos,
7179 &active_rows,
7180 &snapshot,
7181 window,
7182 cx,
7183 )
7184 });
7185 let crease_trailers =
7186 window.with_element_namespace("crease_trailers", |window| {
7187 self.layout_crease_trailers(
7188 row_infos.iter().copied(),
7189 &snapshot,
7190 window,
7191 cx,
7192 )
7193 });
7194
7195 let display_hunks = self.layout_gutter_diff_hunks(
7196 line_height,
7197 &gutter_hitbox,
7198 start_row..end_row,
7199 &snapshot,
7200 window,
7201 cx,
7202 );
7203
7204 let mut line_layouts = Self::layout_lines(
7205 start_row..end_row,
7206 &snapshot,
7207 &self.style,
7208 editor_width,
7209 is_row_soft_wrapped,
7210 window,
7211 cx,
7212 );
7213
7214 let longest_line_blame_width = self
7215 .editor
7216 .update(cx, |editor, cx| {
7217 if !editor.show_git_blame_inline {
7218 return None;
7219 }
7220 let blame = editor.blame.as_ref()?;
7221 let blame_entry = blame
7222 .update(cx, |blame, cx| {
7223 let row_infos =
7224 snapshot.row_infos(snapshot.longest_row()).next()?;
7225 blame.blame_for_rows(&[row_infos], cx).next()
7226 })
7227 .flatten()?;
7228 let mut element = render_inline_blame_entry(
7229 self.editor.clone(),
7230 blame,
7231 blame_entry,
7232 &style,
7233 cx,
7234 );
7235 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7236 Some(
7237 element
7238 .layout_as_root(AvailableSpace::min_size(), window, cx)
7239 .width
7240 + inline_blame_padding,
7241 )
7242 })
7243 .unwrap_or(Pixels::ZERO);
7244
7245 let longest_line_width = layout_line(
7246 snapshot.longest_row(),
7247 &snapshot,
7248 &style,
7249 editor_width,
7250 is_row_soft_wrapped,
7251 window,
7252 cx,
7253 )
7254 .width;
7255
7256 let scrollbar_range_data = ScrollbarRangeData::new(
7257 scrollbar_bounds,
7258 letter_size,
7259 &snapshot,
7260 longest_line_width,
7261 longest_line_blame_width,
7262 &style,
7263 editor_width,
7264 cx,
7265 );
7266
7267 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7268 let mut scroll_width = scroll_range_bounds.size.width;
7269
7270 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7271 snapshot.sticky_header_excerpt(start_row)
7272 } else {
7273 None
7274 };
7275 let sticky_header_excerpt_id =
7276 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7277
7278 let blocks = window.with_element_namespace("blocks", |window| {
7279 self.render_blocks(
7280 start_row..end_row,
7281 &snapshot,
7282 &hitbox,
7283 &text_hitbox,
7284 editor_width,
7285 &mut scroll_width,
7286 &gutter_dimensions,
7287 em_width,
7288 gutter_dimensions.full_width(),
7289 line_height,
7290 &line_layouts,
7291 &local_selections,
7292 &selected_buffer_ids,
7293 is_row_soft_wrapped,
7294 sticky_header_excerpt_id,
7295 window,
7296 cx,
7297 )
7298 });
7299 let mut blocks = match blocks {
7300 Ok(blocks) => blocks,
7301 Err(resized_blocks) => {
7302 self.editor.update(cx, |editor, cx| {
7303 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7304 });
7305 return self.prepaint(None, bounds, &mut (), window, cx);
7306 }
7307 };
7308
7309 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7310 window.with_element_namespace("blocks", |window| {
7311 self.layout_sticky_buffer_header(
7312 sticky_header_excerpt,
7313 scroll_position.y,
7314 line_height,
7315 &snapshot,
7316 &hitbox,
7317 &selected_buffer_ids,
7318 window,
7319 cx,
7320 )
7321 })
7322 });
7323
7324 let start_buffer_row =
7325 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7326 let end_buffer_row =
7327 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7328
7329 let scroll_max = point(
7330 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7331 max_row.as_f32(),
7332 );
7333
7334 self.editor.update(cx, |editor, cx| {
7335 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7336
7337 let autoscrolled = if autoscroll_horizontally {
7338 editor.autoscroll_horizontally(
7339 start_row,
7340 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7341 scroll_width,
7342 em_width,
7343 &line_layouts,
7344 cx,
7345 )
7346 } else {
7347 false
7348 };
7349
7350 if clamped || autoscrolled {
7351 snapshot = editor.snapshot(window, cx);
7352 scroll_position = snapshot.scroll_position();
7353 }
7354 });
7355
7356 let scroll_pixel_position = point(
7357 scroll_position.x * em_width,
7358 scroll_position.y * line_height,
7359 );
7360
7361 let indent_guides = self.layout_indent_guides(
7362 content_origin,
7363 text_hitbox.origin,
7364 start_buffer_row..end_buffer_row,
7365 scroll_pixel_position,
7366 line_height,
7367 &snapshot,
7368 window,
7369 cx,
7370 );
7371
7372 let crease_trailers =
7373 window.with_element_namespace("crease_trailers", |window| {
7374 self.prepaint_crease_trailers(
7375 crease_trailers,
7376 &line_layouts,
7377 line_height,
7378 content_origin,
7379 scroll_pixel_position,
7380 em_width,
7381 window,
7382 cx,
7383 )
7384 });
7385
7386 let (inline_completion_popover, inline_completion_popover_origin) = self
7387 .layout_edit_prediction_popover(
7388 &text_hitbox.bounds,
7389 content_origin,
7390 &snapshot,
7391 start_row..end_row,
7392 scroll_position.y,
7393 scroll_position.y + height_in_lines,
7394 &line_layouts,
7395 line_height,
7396 scroll_pixel_position,
7397 newest_selection_head,
7398 editor_width,
7399 &style,
7400 window,
7401 cx,
7402 )
7403 .unzip();
7404
7405 let mut inline_diagnostics = self.layout_inline_diagnostics(
7406 &line_layouts,
7407 &crease_trailers,
7408 content_origin,
7409 scroll_pixel_position,
7410 inline_completion_popover_origin,
7411 start_row,
7412 end_row,
7413 line_height,
7414 em_width,
7415 &style,
7416 window,
7417 cx,
7418 );
7419
7420 let mut inline_blame = None;
7421 if let Some(newest_selection_head) = newest_selection_head {
7422 let display_row = newest_selection_head.row();
7423 if (start_row..end_row).contains(&display_row) {
7424 let line_ix = display_row.minus(start_row) as usize;
7425 let row_info = &row_infos[line_ix];
7426 let line_layout = &line_layouts[line_ix];
7427 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7428 inline_blame = self.layout_inline_blame(
7429 display_row,
7430 row_info,
7431 line_layout,
7432 crease_trailer_layout,
7433 em_width,
7434 content_origin,
7435 scroll_pixel_position,
7436 line_height,
7437 window,
7438 cx,
7439 );
7440 if inline_blame.is_some() {
7441 // Blame overrides inline diagnostics
7442 inline_diagnostics.remove(&display_row);
7443 }
7444 }
7445 }
7446
7447 let blamed_display_rows = self.layout_blame_entries(
7448 &row_infos,
7449 em_width,
7450 scroll_position,
7451 line_height,
7452 &gutter_hitbox,
7453 gutter_dimensions.git_blame_entries_width,
7454 window,
7455 cx,
7456 );
7457
7458 let scroll_max = point(
7459 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7460 max_scroll_top,
7461 );
7462
7463 self.editor.update(cx, |editor, cx| {
7464 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7465
7466 let autoscrolled = if autoscroll_horizontally {
7467 editor.autoscroll_horizontally(
7468 start_row,
7469 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7470 scroll_width,
7471 em_width,
7472 &line_layouts,
7473 cx,
7474 )
7475 } else {
7476 false
7477 };
7478
7479 if clamped || autoscrolled {
7480 snapshot = editor.snapshot(window, cx);
7481 scroll_position = snapshot.scroll_position();
7482 }
7483 });
7484
7485 let line_elements = self.prepaint_lines(
7486 start_row,
7487 &mut line_layouts,
7488 line_height,
7489 scroll_pixel_position,
7490 content_origin,
7491 window,
7492 cx,
7493 );
7494
7495 let mut block_start_rows = HashSet::default();
7496
7497 window.with_element_namespace("blocks", |window| {
7498 self.layout_blocks(
7499 &mut blocks,
7500 &mut block_start_rows,
7501 &hitbox,
7502 line_height,
7503 scroll_pixel_position,
7504 window,
7505 cx,
7506 );
7507 });
7508
7509 let cursors = self.collect_cursors(&snapshot, cx);
7510 let visible_row_range = start_row..end_row;
7511 let non_visible_cursors = cursors
7512 .iter()
7513 .any(|c| !visible_row_range.contains(&c.0.row()));
7514
7515 let visible_cursors = self.layout_visible_cursors(
7516 &snapshot,
7517 &selections,
7518 &block_start_rows,
7519 start_row..end_row,
7520 &line_layouts,
7521 &text_hitbox,
7522 content_origin,
7523 scroll_position,
7524 scroll_pixel_position,
7525 line_height,
7526 em_width,
7527 em_advance,
7528 autoscroll_containing_element,
7529 window,
7530 cx,
7531 );
7532
7533 let scrollbars_layout = self.layout_scrollbars(
7534 &snapshot,
7535 scrollbar_range_data,
7536 scroll_position,
7537 non_visible_cursors,
7538 window,
7539 cx,
7540 );
7541
7542 let gutter_settings = EditorSettings::get_global(cx).gutter;
7543
7544 let rows_with_hunk_bounds = display_hunks
7545 .iter()
7546 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7547 .fold(
7548 HashMap::default(),
7549 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7550 match hunk {
7551 DisplayDiffHunk::Folded { display_row } => {
7552 rows_with_hunk_bounds.insert(*display_row, bounds);
7553 }
7554 DisplayDiffHunk::Unfolded {
7555 display_row_range, ..
7556 } => {
7557 for display_row in display_row_range.iter_rows() {
7558 rows_with_hunk_bounds.insert(display_row, bounds);
7559 }
7560 }
7561 }
7562 rows_with_hunk_bounds
7563 },
7564 );
7565 let mut code_actions_indicator = None;
7566 if let Some(newest_selection_head) = newest_selection_head {
7567 let newest_selection_point =
7568 newest_selection_head.to_point(&snapshot.display_snapshot);
7569
7570 if (start_row..end_row).contains(&newest_selection_head.row()) {
7571 self.layout_cursor_popovers(
7572 line_height,
7573 &text_hitbox,
7574 content_origin,
7575 start_row,
7576 scroll_pixel_position,
7577 &line_layouts,
7578 newest_selection_head,
7579 newest_selection_point,
7580 &style,
7581 window,
7582 cx,
7583 );
7584
7585 let show_code_actions = snapshot
7586 .show_code_actions
7587 .unwrap_or(gutter_settings.code_actions);
7588 if show_code_actions {
7589 let newest_selection_point =
7590 newest_selection_head.to_point(&snapshot.display_snapshot);
7591 if !snapshot
7592 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7593 {
7594 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7595 MultiBufferRow(newest_selection_point.row),
7596 );
7597 if let Some((buffer, range)) = buffer {
7598 let buffer_id = buffer.remote_id();
7599 let row = range.start.row;
7600 let has_test_indicator = self
7601 .editor
7602 .read(cx)
7603 .tasks
7604 .contains_key(&(buffer_id, row));
7605
7606 if !has_test_indicator {
7607 code_actions_indicator = self
7608 .layout_code_actions_indicator(
7609 line_height,
7610 newest_selection_head,
7611 scroll_pixel_position,
7612 &gutter_dimensions,
7613 &gutter_hitbox,
7614 &rows_with_hunk_bounds,
7615 window,
7616 cx,
7617 );
7618 }
7619 }
7620 }
7621 }
7622 }
7623 }
7624
7625 self.layout_gutter_menu(
7626 line_height,
7627 &text_hitbox,
7628 content_origin,
7629 scroll_pixel_position,
7630 gutter_dimensions.width - gutter_dimensions.left_padding,
7631 window,
7632 cx,
7633 );
7634
7635 let test_indicators = if gutter_settings.runnables {
7636 self.layout_run_indicators(
7637 line_height,
7638 start_row..end_row,
7639 scroll_pixel_position,
7640 &gutter_dimensions,
7641 &gutter_hitbox,
7642 &rows_with_hunk_bounds,
7643 &snapshot,
7644 window,
7645 cx,
7646 )
7647 } else {
7648 Vec::new()
7649 };
7650
7651 self.layout_signature_help(
7652 &hitbox,
7653 content_origin,
7654 scroll_pixel_position,
7655 newest_selection_head,
7656 start_row,
7657 &line_layouts,
7658 line_height,
7659 em_width,
7660 window,
7661 cx,
7662 );
7663
7664 if !cx.has_active_drag() {
7665 self.layout_hover_popovers(
7666 &snapshot,
7667 &hitbox,
7668 &text_hitbox,
7669 start_row..end_row,
7670 content_origin,
7671 scroll_pixel_position,
7672 &line_layouts,
7673 line_height,
7674 em_width,
7675 window,
7676 cx,
7677 );
7678 }
7679
7680 let mouse_context_menu = self.layout_mouse_context_menu(
7681 &snapshot,
7682 start_row..end_row,
7683 content_origin,
7684 window,
7685 cx,
7686 );
7687
7688 window.with_element_namespace("crease_toggles", |window| {
7689 self.prepaint_crease_toggles(
7690 &mut crease_toggles,
7691 line_height,
7692 &gutter_dimensions,
7693 gutter_settings,
7694 scroll_pixel_position,
7695 &gutter_hitbox,
7696 window,
7697 cx,
7698 )
7699 });
7700
7701 let invisible_symbol_font_size = font_size / 2.;
7702 let tab_invisible = window
7703 .text_system()
7704 .shape_line(
7705 "→".into(),
7706 invisible_symbol_font_size,
7707 &[TextRun {
7708 len: "→".len(),
7709 font: self.style.text.font(),
7710 color: cx.theme().colors().editor_invisible,
7711 background_color: None,
7712 underline: None,
7713 strikethrough: None,
7714 }],
7715 )
7716 .unwrap();
7717 let space_invisible = window
7718 .text_system()
7719 .shape_line(
7720 "•".into(),
7721 invisible_symbol_font_size,
7722 &[TextRun {
7723 len: "•".len(),
7724 font: self.style.text.font(),
7725 color: cx.theme().colors().editor_invisible,
7726 background_color: None,
7727 underline: None,
7728 strikethrough: None,
7729 }],
7730 )
7731 .unwrap();
7732
7733 let mode = snapshot.mode;
7734
7735 let position_map = Rc::new(PositionMap {
7736 size: bounds.size,
7737 visible_row_range,
7738 scroll_pixel_position,
7739 scroll_max,
7740 line_layouts,
7741 line_height,
7742 em_width,
7743 em_advance,
7744 snapshot,
7745 gutter_hitbox: gutter_hitbox.clone(),
7746 text_hitbox: text_hitbox.clone(),
7747 });
7748
7749 self.editor.update(cx, |editor, _| {
7750 editor.last_position_map = Some(position_map.clone())
7751 });
7752
7753 let hunk_controls = self.layout_diff_hunk_controls(
7754 start_row..end_row,
7755 &row_infos,
7756 &text_hitbox,
7757 &position_map,
7758 newest_selection_head,
7759 line_height,
7760 scroll_pixel_position,
7761 &display_hunks,
7762 self.editor.clone(),
7763 window,
7764 cx,
7765 );
7766
7767 EditorLayout {
7768 mode,
7769 position_map,
7770 visible_display_row_range: start_row..end_row,
7771 wrap_guides,
7772 indent_guides,
7773 hitbox,
7774 gutter_hitbox,
7775 display_hunks,
7776 content_origin,
7777 scrollbars_layout,
7778 active_rows,
7779 highlighted_rows,
7780 highlighted_ranges,
7781 highlighted_gutter_ranges,
7782 redacted_ranges,
7783 line_elements,
7784 line_numbers,
7785 blamed_display_rows,
7786 inline_diagnostics,
7787 inline_blame,
7788 blocks,
7789 cursors,
7790 visible_cursors,
7791 selections,
7792 inline_completion_popover,
7793 diff_hunk_controls: hunk_controls,
7794 mouse_context_menu,
7795 test_indicators,
7796 code_actions_indicator,
7797 crease_toggles,
7798 crease_trailers,
7799 tab_invisible,
7800 space_invisible,
7801 sticky_buffer_header,
7802 }
7803 })
7804 })
7805 })
7806 }
7807
7808 fn paint(
7809 &mut self,
7810 _: Option<&GlobalElementId>,
7811 bounds: Bounds<gpui::Pixels>,
7812 _: &mut Self::RequestLayoutState,
7813 layout: &mut Self::PrepaintState,
7814 window: &mut Window,
7815 cx: &mut App,
7816 ) {
7817 let focus_handle = self.editor.focus_handle(cx);
7818 let key_context = self
7819 .editor
7820 .update(cx, |editor, cx| editor.key_context(window, cx));
7821
7822 window.set_key_context(key_context);
7823 window.handle_input(
7824 &focus_handle,
7825 ElementInputHandler::new(bounds, self.editor.clone()),
7826 cx,
7827 );
7828 self.register_actions(window, cx);
7829 self.register_key_listeners(window, cx, layout);
7830
7831 let text_style = TextStyleRefinement {
7832 font_size: Some(self.style.text.font_size),
7833 line_height: Some(self.style.text.line_height),
7834 ..Default::default()
7835 };
7836 let rem_size = self.rem_size(cx);
7837 window.with_rem_size(rem_size, |window| {
7838 window.with_text_style(Some(text_style), |window| {
7839 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7840 self.paint_mouse_listeners(layout, window, cx);
7841 self.paint_background(layout, window, cx);
7842 self.paint_indent_guides(layout, window, cx);
7843
7844 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7845 self.paint_blamed_display_rows(layout, window, cx);
7846 self.paint_line_numbers(layout, window, cx);
7847 }
7848
7849 self.paint_text(layout, window, cx);
7850
7851 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7852 self.paint_gutter_highlights(layout, window, cx);
7853 self.paint_gutter_indicators(layout, window, cx);
7854 }
7855
7856 if !layout.blocks.is_empty() {
7857 window.with_element_namespace("blocks", |window| {
7858 self.paint_blocks(layout, window, cx);
7859 });
7860 }
7861
7862 window.with_element_namespace("blocks", |window| {
7863 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7864 sticky_header.paint(window, cx)
7865 }
7866 });
7867
7868 self.paint_scrollbars(layout, window, cx);
7869 self.paint_inline_completion_popover(layout, window, cx);
7870 self.paint_mouse_context_menu(layout, window, cx);
7871 });
7872 })
7873 })
7874 }
7875}
7876
7877pub(super) fn gutter_bounds(
7878 editor_bounds: Bounds<Pixels>,
7879 gutter_dimensions: GutterDimensions,
7880) -> Bounds<Pixels> {
7881 Bounds {
7882 origin: editor_bounds.origin,
7883 size: size(gutter_dimensions.width, editor_bounds.size.height),
7884 }
7885}
7886
7887struct ScrollbarRangeData {
7888 scrollbar_bounds: Bounds<Pixels>,
7889 scroll_range: Bounds<Pixels>,
7890 letter_size: Size<Pixels>,
7891}
7892
7893impl ScrollbarRangeData {
7894 #[allow(clippy::too_many_arguments)]
7895 pub fn new(
7896 scrollbar_bounds: Bounds<Pixels>,
7897 letter_size: Size<Pixels>,
7898 snapshot: &EditorSnapshot,
7899 longest_line_width: Pixels,
7900 longest_line_blame_width: Pixels,
7901 style: &EditorStyle,
7902 editor_width: Pixels,
7903 cx: &mut App,
7904 ) -> ScrollbarRangeData {
7905 // TODO: Simplify this function down, it requires a lot of parameters
7906 let max_row = snapshot.max_point().row();
7907 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7908
7909 let settings = EditorSettings::get_global(cx);
7910 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7911 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7912 ScrollBeyondLastLine::Off => px(1.),
7913 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7914 };
7915
7916 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7917 letter_size.width + style.scrollbar_width
7918 } else {
7919 px(0.0)
7920 };
7921
7922 let overscroll = size(
7923 right_margin + longest_line_blame_width,
7924 letter_size.height * scroll_beyond_last_line,
7925 );
7926
7927 let scroll_range = Bounds {
7928 origin: scrollbar_bounds.origin,
7929 size: text_bounds_size + overscroll,
7930 };
7931
7932 ScrollbarRangeData {
7933 scrollbar_bounds,
7934 scroll_range,
7935 letter_size,
7936 }
7937 }
7938}
7939
7940impl IntoElement for EditorElement {
7941 type Element = Self;
7942
7943 fn into_element(self) -> Self::Element {
7944 self
7945 }
7946}
7947
7948pub struct EditorLayout {
7949 position_map: Rc<PositionMap>,
7950 hitbox: Hitbox,
7951 gutter_hitbox: Hitbox,
7952 content_origin: gpui::Point<Pixels>,
7953 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7954 mode: EditorMode,
7955 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7956 indent_guides: Option<Vec<IndentGuideLayout>>,
7957 visible_display_row_range: Range<DisplayRow>,
7958 active_rows: BTreeMap<DisplayRow, bool>,
7959 highlighted_rows: BTreeMap<DisplayRow, gpui::Background>,
7960 line_elements: SmallVec<[AnyElement; 1]>,
7961 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7962 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7963 blamed_display_rows: Option<Vec<AnyElement>>,
7964 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7965 inline_blame: Option<AnyElement>,
7966 blocks: Vec<BlockLayout>,
7967 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7968 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7969 redacted_ranges: Vec<Range<DisplayPoint>>,
7970 cursors: Vec<(DisplayPoint, Hsla)>,
7971 visible_cursors: Vec<CursorLayout>,
7972 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7973 code_actions_indicator: Option<AnyElement>,
7974 test_indicators: Vec<AnyElement>,
7975 crease_toggles: Vec<Option<AnyElement>>,
7976 diff_hunk_controls: Vec<AnyElement>,
7977 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7978 inline_completion_popover: Option<AnyElement>,
7979 mouse_context_menu: Option<AnyElement>,
7980 tab_invisible: ShapedLine,
7981 space_invisible: ShapedLine,
7982 sticky_buffer_header: Option<AnyElement>,
7983}
7984
7985impl EditorLayout {
7986 fn line_end_overshoot(&self) -> Pixels {
7987 0.15 * self.position_map.line_height
7988 }
7989}
7990
7991struct LineNumberLayout {
7992 shaped_line: ShapedLine,
7993 hitbox: Option<Hitbox>,
7994 display_row: DisplayRow,
7995}
7996
7997struct ColoredRange<T> {
7998 start: T,
7999 end: T,
8000 color: Hsla,
8001}
8002
8003#[derive(Clone)]
8004struct ScrollbarLayout {
8005 hitbox: Hitbox,
8006 visible_range: Range<f32>,
8007 visible: bool,
8008 text_unit_size: Pixels,
8009 thumb_size: Pixels,
8010 axis: Axis,
8011}
8012
8013impl ScrollbarLayout {
8014 const BORDER_WIDTH: Pixels = px(1.0);
8015 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
8016 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
8017 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
8018
8019 fn thumb_bounds(&self) -> Bounds<Pixels> {
8020 match self.axis {
8021 Axis::Vertical => {
8022 let thumb_top = self.y_for_row(self.visible_range.start);
8023 let thumb_bottom = thumb_top + self.thumb_size;
8024 Bounds::from_corners(
8025 point(self.hitbox.left(), thumb_top),
8026 point(self.hitbox.right(), thumb_bottom),
8027 )
8028 }
8029 Axis::Horizontal => {
8030 let thumb_left =
8031 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
8032 let thumb_right = thumb_left + self.thumb_size;
8033 Bounds::from_corners(
8034 point(thumb_left, self.hitbox.top()),
8035 point(thumb_right, self.hitbox.bottom()),
8036 )
8037 }
8038 }
8039 }
8040
8041 fn y_for_row(&self, row: f32) -> Pixels {
8042 self.hitbox.top() + row * self.text_unit_size
8043 }
8044
8045 fn marker_quads_for_ranges(
8046 &self,
8047 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
8048 column: Option<usize>,
8049 ) -> Vec<PaintQuad> {
8050 struct MinMax {
8051 min: Pixels,
8052 max: Pixels,
8053 }
8054 let (x_range, height_limit) = if let Some(column) = column {
8055 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
8056 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
8057 let end = start + column_width;
8058 (
8059 Range { start, end },
8060 MinMax {
8061 min: Self::MIN_MARKER_HEIGHT,
8062 max: px(f32::MAX),
8063 },
8064 )
8065 } else {
8066 (
8067 Range {
8068 start: Self::BORDER_WIDTH,
8069 end: self.hitbox.size.width,
8070 },
8071 MinMax {
8072 min: Self::LINE_MARKER_HEIGHT,
8073 max: Self::LINE_MARKER_HEIGHT,
8074 },
8075 )
8076 };
8077
8078 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
8079 let mut pixel_ranges = row_ranges
8080 .into_iter()
8081 .map(|range| {
8082 let start_y = row_to_y(range.start);
8083 let end_y = row_to_y(range.end)
8084 + self
8085 .text_unit_size
8086 .max(height_limit.min)
8087 .min(height_limit.max);
8088 ColoredRange {
8089 start: start_y,
8090 end: end_y,
8091 color: range.color,
8092 }
8093 })
8094 .peekable();
8095
8096 let mut quads = Vec::new();
8097 while let Some(mut pixel_range) = pixel_ranges.next() {
8098 while let Some(next_pixel_range) = pixel_ranges.peek() {
8099 if pixel_range.end >= next_pixel_range.start - px(1.0)
8100 && pixel_range.color == next_pixel_range.color
8101 {
8102 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8103 pixel_ranges.next();
8104 } else {
8105 break;
8106 }
8107 }
8108
8109 let bounds = Bounds::from_corners(
8110 point(x_range.start, pixel_range.start),
8111 point(x_range.end, pixel_range.end),
8112 );
8113 quads.push(quad(
8114 bounds,
8115 Corners::default(),
8116 pixel_range.color,
8117 Edges::default(),
8118 Hsla::transparent_black(),
8119 ));
8120 }
8121
8122 quads
8123 }
8124}
8125
8126struct CreaseTrailerLayout {
8127 element: AnyElement,
8128 bounds: Bounds<Pixels>,
8129}
8130
8131pub(crate) struct PositionMap {
8132 pub size: Size<Pixels>,
8133 pub line_height: Pixels,
8134 pub scroll_pixel_position: gpui::Point<Pixels>,
8135 pub scroll_max: gpui::Point<f32>,
8136 pub em_width: Pixels,
8137 pub em_advance: Pixels,
8138 pub visible_row_range: Range<DisplayRow>,
8139 pub line_layouts: Vec<LineWithInvisibles>,
8140 pub snapshot: EditorSnapshot,
8141 pub text_hitbox: Hitbox,
8142 pub gutter_hitbox: Hitbox,
8143}
8144
8145#[derive(Debug, Copy, Clone)]
8146pub struct PointForPosition {
8147 pub previous_valid: DisplayPoint,
8148 pub next_valid: DisplayPoint,
8149 pub exact_unclipped: DisplayPoint,
8150 pub column_overshoot_after_line_end: u32,
8151}
8152
8153impl PointForPosition {
8154 pub fn as_valid(&self) -> Option<DisplayPoint> {
8155 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8156 Some(self.previous_valid)
8157 } else {
8158 None
8159 }
8160 }
8161}
8162
8163impl PositionMap {
8164 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8165 let text_bounds = self.text_hitbox.bounds;
8166 let scroll_position = self.snapshot.scroll_position();
8167 let position = position - text_bounds.origin;
8168 let y = position.y.max(px(0.)).min(self.size.height);
8169 let x = position.x + (scroll_position.x * self.em_width);
8170 let row = ((y / self.line_height) + scroll_position.y) as u32;
8171
8172 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8173 .line_layouts
8174 .get(row as usize - scroll_position.y as usize)
8175 {
8176 if let Some(ix) = line.index_for_x(x) {
8177 (ix as u32, px(0.))
8178 } else {
8179 (line.len as u32, px(0.).max(x - line.width))
8180 }
8181 } else {
8182 (0, x)
8183 };
8184
8185 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8186 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8187 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8188
8189 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8190 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8191 PointForPosition {
8192 previous_valid,
8193 next_valid,
8194 exact_unclipped,
8195 column_overshoot_after_line_end,
8196 }
8197 }
8198}
8199
8200struct BlockLayout {
8201 id: BlockId,
8202 row: Option<DisplayRow>,
8203 element: AnyElement,
8204 available_space: Size<AvailableSpace>,
8205 style: BlockStyle,
8206}
8207
8208fn layout_line(
8209 row: DisplayRow,
8210 snapshot: &EditorSnapshot,
8211 style: &EditorStyle,
8212 text_width: Pixels,
8213 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8214 window: &mut Window,
8215 cx: &mut App,
8216) -> LineWithInvisibles {
8217 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8218 LineWithInvisibles::from_chunks(
8219 chunks,
8220 &style,
8221 MAX_LINE_LEN,
8222 1,
8223 snapshot.mode,
8224 text_width,
8225 is_row_soft_wrapped,
8226 window,
8227 cx,
8228 )
8229 .pop()
8230 .unwrap()
8231}
8232
8233#[derive(Debug)]
8234pub struct IndentGuideLayout {
8235 origin: gpui::Point<Pixels>,
8236 length: Pixels,
8237 single_indent_width: Pixels,
8238 depth: u32,
8239 active: bool,
8240 settings: IndentGuideSettings,
8241}
8242
8243pub struct CursorLayout {
8244 origin: gpui::Point<Pixels>,
8245 block_width: Pixels,
8246 line_height: Pixels,
8247 color: Hsla,
8248 shape: CursorShape,
8249 block_text: Option<ShapedLine>,
8250 cursor_name: Option<AnyElement>,
8251}
8252
8253#[derive(Debug)]
8254pub struct CursorName {
8255 string: SharedString,
8256 color: Hsla,
8257 is_top_row: bool,
8258}
8259
8260impl CursorLayout {
8261 pub fn new(
8262 origin: gpui::Point<Pixels>,
8263 block_width: Pixels,
8264 line_height: Pixels,
8265 color: Hsla,
8266 shape: CursorShape,
8267 block_text: Option<ShapedLine>,
8268 ) -> CursorLayout {
8269 CursorLayout {
8270 origin,
8271 block_width,
8272 line_height,
8273 color,
8274 shape,
8275 block_text,
8276 cursor_name: None,
8277 }
8278 }
8279
8280 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8281 Bounds {
8282 origin: self.origin + origin,
8283 size: size(self.block_width, self.line_height),
8284 }
8285 }
8286
8287 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8288 match self.shape {
8289 CursorShape::Bar => Bounds {
8290 origin: self.origin + origin,
8291 size: size(px(2.0), self.line_height),
8292 },
8293 CursorShape::Block | CursorShape::Hollow => Bounds {
8294 origin: self.origin + origin,
8295 size: size(self.block_width, self.line_height),
8296 },
8297 CursorShape::Underline => Bounds {
8298 origin: self.origin
8299 + origin
8300 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8301 size: size(self.block_width, px(2.0)),
8302 },
8303 }
8304 }
8305
8306 pub fn layout(
8307 &mut self,
8308 origin: gpui::Point<Pixels>,
8309 cursor_name: Option<CursorName>,
8310 window: &mut Window,
8311 cx: &mut App,
8312 ) {
8313 if let Some(cursor_name) = cursor_name {
8314 let bounds = self.bounds(origin);
8315 let text_size = self.line_height / 1.5;
8316
8317 let name_origin = if cursor_name.is_top_row {
8318 point(bounds.right() - px(1.), bounds.top())
8319 } else {
8320 match self.shape {
8321 CursorShape::Bar => point(
8322 bounds.right() - px(2.),
8323 bounds.top() - text_size / 2. - px(1.),
8324 ),
8325 _ => point(
8326 bounds.right() - px(1.),
8327 bounds.top() - text_size / 2. - px(1.),
8328 ),
8329 }
8330 };
8331 let mut name_element = div()
8332 .bg(self.color)
8333 .text_size(text_size)
8334 .px_0p5()
8335 .line_height(text_size + px(2.))
8336 .text_color(cursor_name.color)
8337 .child(cursor_name.string.clone())
8338 .into_any_element();
8339
8340 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8341
8342 self.cursor_name = Some(name_element);
8343 }
8344 }
8345
8346 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8347 let bounds = self.bounds(origin);
8348
8349 //Draw background or border quad
8350 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8351 outline(bounds, self.color)
8352 } else {
8353 fill(bounds, self.color)
8354 };
8355
8356 if let Some(name) = &mut self.cursor_name {
8357 name.paint(window, cx);
8358 }
8359
8360 window.paint_quad(cursor);
8361
8362 if let Some(block_text) = &self.block_text {
8363 block_text
8364 .paint(self.origin + origin, self.line_height, window, cx)
8365 .log_err();
8366 }
8367 }
8368
8369 pub fn shape(&self) -> CursorShape {
8370 self.shape
8371 }
8372}
8373
8374#[derive(Debug)]
8375pub struct HighlightedRange {
8376 pub start_y: Pixels,
8377 pub line_height: Pixels,
8378 pub lines: Vec<HighlightedRangeLine>,
8379 pub color: Hsla,
8380 pub corner_radius: Pixels,
8381}
8382
8383#[derive(Debug)]
8384pub struct HighlightedRangeLine {
8385 pub start_x: Pixels,
8386 pub end_x: Pixels,
8387}
8388
8389impl HighlightedRange {
8390 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8391 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8392 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8393 self.paint_lines(
8394 self.start_y + self.line_height,
8395 &self.lines[1..],
8396 bounds,
8397 window,
8398 );
8399 } else {
8400 self.paint_lines(self.start_y, &self.lines, bounds, window);
8401 }
8402 }
8403
8404 fn paint_lines(
8405 &self,
8406 start_y: Pixels,
8407 lines: &[HighlightedRangeLine],
8408 _bounds: Bounds<Pixels>,
8409 window: &mut Window,
8410 ) {
8411 if lines.is_empty() {
8412 return;
8413 }
8414
8415 let first_line = lines.first().unwrap();
8416 let last_line = lines.last().unwrap();
8417
8418 let first_top_left = point(first_line.start_x, start_y);
8419 let first_top_right = point(first_line.end_x, start_y);
8420
8421 let curve_height = point(Pixels::ZERO, self.corner_radius);
8422 let curve_width = |start_x: Pixels, end_x: Pixels| {
8423 let max = (end_x - start_x) / 2.;
8424 let width = if max < self.corner_radius {
8425 max
8426 } else {
8427 self.corner_radius
8428 };
8429
8430 point(width, Pixels::ZERO)
8431 };
8432
8433 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8434 let mut builder = gpui::PathBuilder::fill();
8435 builder.move_to(first_top_right - top_curve_width);
8436 builder.curve_to(first_top_right + curve_height, first_top_right);
8437
8438 let mut iter = lines.iter().enumerate().peekable();
8439 while let Some((ix, line)) = iter.next() {
8440 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8441
8442 if let Some((_, next_line)) = iter.peek() {
8443 let next_top_right = point(next_line.end_x, bottom_right.y);
8444
8445 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8446 Ordering::Equal => {
8447 builder.line_to(bottom_right);
8448 }
8449 Ordering::Less => {
8450 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8451 builder.line_to(bottom_right - curve_height);
8452 if self.corner_radius > Pixels::ZERO {
8453 builder.curve_to(bottom_right - curve_width, bottom_right);
8454 }
8455 builder.line_to(next_top_right + curve_width);
8456 if self.corner_radius > Pixels::ZERO {
8457 builder.curve_to(next_top_right + curve_height, next_top_right);
8458 }
8459 }
8460 Ordering::Greater => {
8461 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8462 builder.line_to(bottom_right - curve_height);
8463 if self.corner_radius > Pixels::ZERO {
8464 builder.curve_to(bottom_right + curve_width, bottom_right);
8465 }
8466 builder.line_to(next_top_right - curve_width);
8467 if self.corner_radius > Pixels::ZERO {
8468 builder.curve_to(next_top_right + curve_height, next_top_right);
8469 }
8470 }
8471 }
8472 } else {
8473 let curve_width = curve_width(line.start_x, line.end_x);
8474 builder.line_to(bottom_right - curve_height);
8475 if self.corner_radius > Pixels::ZERO {
8476 builder.curve_to(bottom_right - curve_width, bottom_right);
8477 }
8478
8479 let bottom_left = point(line.start_x, bottom_right.y);
8480 builder.line_to(bottom_left + curve_width);
8481 if self.corner_radius > Pixels::ZERO {
8482 builder.curve_to(bottom_left - curve_height, bottom_left);
8483 }
8484 }
8485 }
8486
8487 if first_line.start_x > last_line.start_x {
8488 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8489 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8490 builder.line_to(second_top_left + curve_height);
8491 if self.corner_radius > Pixels::ZERO {
8492 builder.curve_to(second_top_left + curve_width, second_top_left);
8493 }
8494 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8495 builder.line_to(first_bottom_left - curve_width);
8496 if self.corner_radius > Pixels::ZERO {
8497 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8498 }
8499 }
8500
8501 builder.line_to(first_top_left + curve_height);
8502 if self.corner_radius > Pixels::ZERO {
8503 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8504 }
8505 builder.line_to(first_top_right - top_curve_width);
8506
8507 if let Ok(path) = builder.build() {
8508 window.paint_path(path, self.color);
8509 }
8510 }
8511}
8512
8513enum CursorPopoverType {
8514 CodeContextMenu,
8515 EditPrediction,
8516}
8517
8518pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8519 (delta.pow(1.5) / 100.0).into()
8520}
8521
8522fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8523 (delta.pow(1.2) / 300.0).into()
8524}
8525
8526pub fn register_action<T: Action>(
8527 editor: &Entity<Editor>,
8528 window: &mut Window,
8529 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8530) {
8531 let editor = editor.clone();
8532 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8533 let action = action.downcast_ref().unwrap();
8534 if phase == DispatchPhase::Bubble {
8535 editor.update(cx, |editor, cx| {
8536 listener(editor, action, window, cx);
8537 })
8538 }
8539 })
8540}
8541
8542fn compute_auto_height_layout(
8543 editor: &mut Editor,
8544 max_lines: usize,
8545 max_line_number_width: Pixels,
8546 known_dimensions: Size<Option<Pixels>>,
8547 available_width: AvailableSpace,
8548 window: &mut Window,
8549 cx: &mut Context<Editor>,
8550) -> Option<Size<Pixels>> {
8551 let width = known_dimensions.width.or({
8552 if let AvailableSpace::Definite(available_width) = available_width {
8553 Some(available_width)
8554 } else {
8555 None
8556 }
8557 })?;
8558 if let Some(height) = known_dimensions.height {
8559 return Some(size(width, height));
8560 }
8561
8562 let style = editor.style.as_ref().unwrap();
8563 let font_id = window.text_system().resolve_font(&style.text.font());
8564 let font_size = style.text.font_size.to_pixels(window.rem_size());
8565 let line_height = style.text.line_height_in_pixels(window.rem_size());
8566 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8567
8568 let mut snapshot = editor.snapshot(window, cx);
8569 let gutter_dimensions = snapshot
8570 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8571 .unwrap_or_default();
8572
8573 editor.gutter_dimensions = gutter_dimensions;
8574 let text_width = width - gutter_dimensions.width;
8575 let overscroll = size(em_width, px(0.));
8576
8577 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8578 if editor.set_wrap_width(Some(editor_width), cx) {
8579 snapshot = editor.snapshot(window, cx);
8580 }
8581
8582 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8583 let height = scroll_height
8584 .max(line_height)
8585 .min(line_height * max_lines as f32);
8586
8587 Some(size(width, height))
8588}
8589
8590#[cfg(test)]
8591mod tests {
8592 use super::*;
8593 use crate::{
8594 display_map::{BlockPlacement, BlockProperties},
8595 editor_tests::{init_test, update_test_language_settings},
8596 Editor, MultiBuffer,
8597 };
8598 use gpui::{TestAppContext, VisualTestContext};
8599 use language::language_settings;
8600 use log::info;
8601 use std::num::NonZeroU32;
8602 use util::test::sample_text;
8603
8604 #[gpui::test]
8605 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8606 init_test(cx, |_| {});
8607 let window = cx.add_window(|window, cx| {
8608 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8609 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8610 });
8611
8612 let editor = window.root(cx).unwrap();
8613 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8614 let line_height = window
8615 .update(cx, |_, window, _| {
8616 style.text.line_height_in_pixels(window.rem_size())
8617 })
8618 .unwrap();
8619 let element = EditorElement::new(&editor, style);
8620 let snapshot = window
8621 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8622 .unwrap();
8623
8624 let layouts = cx
8625 .update_window(*window, |_, window, cx| {
8626 element.layout_line_numbers(
8627 None,
8628 GutterDimensions {
8629 left_padding: Pixels::ZERO,
8630 right_padding: Pixels::ZERO,
8631 width: px(30.0),
8632 margin: Pixels::ZERO,
8633 git_blame_entries_width: None,
8634 },
8635 line_height,
8636 gpui::Point::default(),
8637 DisplayRow(0)..DisplayRow(6),
8638 &(0..6)
8639 .map(|row| RowInfo {
8640 buffer_row: Some(row),
8641 ..Default::default()
8642 })
8643 .collect::<Vec<_>>(),
8644 Some(DisplayPoint::new(DisplayRow(0), 0)),
8645 &snapshot,
8646 window,
8647 cx,
8648 )
8649 })
8650 .unwrap();
8651 assert_eq!(layouts.len(), 6);
8652
8653 let relative_rows = window
8654 .update(cx, |editor, window, cx| {
8655 let snapshot = editor.snapshot(window, cx);
8656 element.calculate_relative_line_numbers(
8657 &snapshot,
8658 &(DisplayRow(0)..DisplayRow(6)),
8659 Some(DisplayRow(3)),
8660 )
8661 })
8662 .unwrap();
8663 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8664 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8665 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8666 // current line has no relative number
8667 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8668 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8669
8670 // works if cursor is before screen
8671 let relative_rows = window
8672 .update(cx, |editor, window, cx| {
8673 let snapshot = editor.snapshot(window, cx);
8674 element.calculate_relative_line_numbers(
8675 &snapshot,
8676 &(DisplayRow(3)..DisplayRow(6)),
8677 Some(DisplayRow(1)),
8678 )
8679 })
8680 .unwrap();
8681 assert_eq!(relative_rows.len(), 3);
8682 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8683 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8684 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8685
8686 // works if cursor is after screen
8687 let relative_rows = window
8688 .update(cx, |editor, window, cx| {
8689 let snapshot = editor.snapshot(window, cx);
8690 element.calculate_relative_line_numbers(
8691 &snapshot,
8692 &(DisplayRow(0)..DisplayRow(3)),
8693 Some(DisplayRow(6)),
8694 )
8695 })
8696 .unwrap();
8697 assert_eq!(relative_rows.len(), 3);
8698 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8699 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8700 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8701 }
8702
8703 #[gpui::test]
8704 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8705 init_test(cx, |_| {});
8706
8707 let window = cx.add_window(|window, cx| {
8708 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8709 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8710 });
8711 let cx = &mut VisualTestContext::from_window(*window, cx);
8712 let editor = window.root(cx).unwrap();
8713 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8714
8715 window
8716 .update(cx, |editor, window, cx| {
8717 editor.cursor_shape = CursorShape::Block;
8718 editor.change_selections(None, window, cx, |s| {
8719 s.select_ranges([
8720 Point::new(0, 0)..Point::new(1, 0),
8721 Point::new(3, 2)..Point::new(3, 3),
8722 Point::new(5, 6)..Point::new(6, 0),
8723 ]);
8724 });
8725 })
8726 .unwrap();
8727
8728 let (_, state) = cx.draw(
8729 point(px(500.), px(500.)),
8730 size(px(500.), px(500.)),
8731 |_, _| EditorElement::new(&editor, style),
8732 );
8733
8734 assert_eq!(state.selections.len(), 1);
8735 let local_selections = &state.selections[0].1;
8736 assert_eq!(local_selections.len(), 3);
8737 // moves cursor back one line
8738 assert_eq!(
8739 local_selections[0].head,
8740 DisplayPoint::new(DisplayRow(0), 6)
8741 );
8742 assert_eq!(
8743 local_selections[0].range,
8744 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8745 );
8746
8747 // moves cursor back one column
8748 assert_eq!(
8749 local_selections[1].range,
8750 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8751 );
8752 assert_eq!(
8753 local_selections[1].head,
8754 DisplayPoint::new(DisplayRow(3), 2)
8755 );
8756
8757 // leaves cursor on the max point
8758 assert_eq!(
8759 local_selections[2].range,
8760 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8761 );
8762 assert_eq!(
8763 local_selections[2].head,
8764 DisplayPoint::new(DisplayRow(6), 0)
8765 );
8766
8767 // active lines does not include 1 (even though the range of the selection does)
8768 assert_eq!(
8769 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8770 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8771 );
8772
8773 // multi-buffer support
8774 // in DisplayPoint coordinates, this is what we're dealing with:
8775 // 0: [[file
8776 // 1: header
8777 // 2: section]]
8778 // 3: aaaaaa
8779 // 4: bbbbbb
8780 // 5: cccccc
8781 // 6:
8782 // 7: [[footer]]
8783 // 8: [[header]]
8784 // 9: ffffff
8785 // 10: gggggg
8786 // 11: hhhhhh
8787 // 12:
8788 // 13: [[footer]]
8789 // 14: [[file
8790 // 15: header
8791 // 16: section]]
8792 // 17: bbbbbb
8793 // 18: cccccc
8794 // 19: dddddd
8795 // 20: [[footer]]
8796 let window = cx.add_window(|window, cx| {
8797 let buffer = MultiBuffer::build_multi(
8798 [
8799 (
8800 &(sample_text(8, 6, 'a') + "\n"),
8801 vec![
8802 Point::new(0, 0)..Point::new(3, 0),
8803 Point::new(4, 0)..Point::new(7, 0),
8804 ],
8805 ),
8806 (
8807 &(sample_text(8, 6, 'a') + "\n"),
8808 vec![Point::new(1, 0)..Point::new(3, 0)],
8809 ),
8810 ],
8811 cx,
8812 );
8813 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8814 });
8815 let editor = window.root(cx).unwrap();
8816 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8817 let _state = window.update(cx, |editor, window, cx| {
8818 editor.cursor_shape = CursorShape::Block;
8819 editor.change_selections(None, window, cx, |s| {
8820 s.select_display_ranges([
8821 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8822 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8823 ]);
8824 });
8825 });
8826
8827 let (_, state) = cx.draw(
8828 point(px(500.), px(500.)),
8829 size(px(500.), px(500.)),
8830 |_, _| EditorElement::new(&editor, style),
8831 );
8832 assert_eq!(state.selections.len(), 1);
8833 let local_selections = &state.selections[0].1;
8834 assert_eq!(local_selections.len(), 2);
8835
8836 // moves cursor on excerpt boundary back a line
8837 // and doesn't allow selection to bleed through
8838 assert_eq!(
8839 local_selections[0].range,
8840 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8841 );
8842 assert_eq!(
8843 local_selections[0].head,
8844 DisplayPoint::new(DisplayRow(6), 0)
8845 );
8846 // moves cursor on buffer boundary back two lines
8847 // and doesn't allow selection to bleed through
8848 assert_eq!(
8849 local_selections[1].range,
8850 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8851 );
8852 assert_eq!(
8853 local_selections[1].head,
8854 DisplayPoint::new(DisplayRow(12), 0)
8855 );
8856 }
8857
8858 #[gpui::test]
8859 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8860 init_test(cx, |_| {});
8861
8862 let window = cx.add_window(|window, cx| {
8863 let buffer = MultiBuffer::build_simple("", cx);
8864 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8865 });
8866 let cx = &mut VisualTestContext::from_window(*window, cx);
8867 let editor = window.root(cx).unwrap();
8868 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8869 window
8870 .update(cx, |editor, window, cx| {
8871 editor.set_placeholder_text("hello", cx);
8872 editor.insert_blocks(
8873 [BlockProperties {
8874 style: BlockStyle::Fixed,
8875 placement: BlockPlacement::Above(Anchor::min()),
8876 height: 3,
8877 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8878 priority: 0,
8879 }],
8880 None,
8881 cx,
8882 );
8883
8884 // Blur the editor so that it displays placeholder text.
8885 window.blur();
8886 })
8887 .unwrap();
8888
8889 let (_, state) = cx.draw(
8890 point(px(500.), px(500.)),
8891 size(px(500.), px(500.)),
8892 |_, _| EditorElement::new(&editor, style),
8893 );
8894 assert_eq!(state.position_map.line_layouts.len(), 4);
8895 assert_eq!(state.line_numbers.len(), 1);
8896 assert_eq!(
8897 state
8898 .line_numbers
8899 .get(&MultiBufferRow(0))
8900 .map(|line_number| line_number.shaped_line.text.as_ref()),
8901 Some("1")
8902 );
8903 }
8904
8905 #[gpui::test]
8906 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8907 const TAB_SIZE: u32 = 4;
8908
8909 let input_text = "\t \t|\t| a b";
8910 let expected_invisibles = vec![
8911 Invisible::Tab {
8912 line_start_offset: 0,
8913 line_end_offset: TAB_SIZE as usize,
8914 },
8915 Invisible::Whitespace {
8916 line_offset: TAB_SIZE as usize,
8917 },
8918 Invisible::Tab {
8919 line_start_offset: TAB_SIZE as usize + 1,
8920 line_end_offset: TAB_SIZE as usize * 2,
8921 },
8922 Invisible::Tab {
8923 line_start_offset: TAB_SIZE as usize * 2 + 1,
8924 line_end_offset: TAB_SIZE as usize * 3,
8925 },
8926 Invisible::Whitespace {
8927 line_offset: TAB_SIZE as usize * 3 + 1,
8928 },
8929 Invisible::Whitespace {
8930 line_offset: TAB_SIZE as usize * 3 + 3,
8931 },
8932 ];
8933 assert_eq!(
8934 expected_invisibles.len(),
8935 input_text
8936 .chars()
8937 .filter(|initial_char| initial_char.is_whitespace())
8938 .count(),
8939 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8940 );
8941
8942 for show_line_numbers in [true, false] {
8943 init_test(cx, |s| {
8944 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8945 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8946 });
8947
8948 let actual_invisibles = collect_invisibles_from_new_editor(
8949 cx,
8950 EditorMode::Full,
8951 input_text,
8952 px(500.0),
8953 show_line_numbers,
8954 );
8955
8956 assert_eq!(expected_invisibles, actual_invisibles);
8957 }
8958 }
8959
8960 #[gpui::test]
8961 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8962 init_test(cx, |s| {
8963 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8964 s.defaults.tab_size = NonZeroU32::new(4);
8965 });
8966
8967 for editor_mode_without_invisibles in [
8968 EditorMode::SingleLine { auto_width: false },
8969 EditorMode::AutoHeight { max_lines: 100 },
8970 ] {
8971 for show_line_numbers in [true, false] {
8972 let invisibles = collect_invisibles_from_new_editor(
8973 cx,
8974 editor_mode_without_invisibles,
8975 "\t\t\t| | a b",
8976 px(500.0),
8977 show_line_numbers,
8978 );
8979 assert!(invisibles.is_empty(),
8980 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8981 }
8982 }
8983 }
8984
8985 #[gpui::test]
8986 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8987 let tab_size = 4;
8988 let input_text = "a\tbcd ".repeat(9);
8989 let repeated_invisibles = [
8990 Invisible::Tab {
8991 line_start_offset: 1,
8992 line_end_offset: tab_size as usize,
8993 },
8994 Invisible::Whitespace {
8995 line_offset: tab_size as usize + 3,
8996 },
8997 Invisible::Whitespace {
8998 line_offset: tab_size as usize + 4,
8999 },
9000 Invisible::Whitespace {
9001 line_offset: tab_size as usize + 5,
9002 },
9003 Invisible::Whitespace {
9004 line_offset: tab_size as usize + 6,
9005 },
9006 Invisible::Whitespace {
9007 line_offset: tab_size as usize + 7,
9008 },
9009 ];
9010 let expected_invisibles = std::iter::once(repeated_invisibles)
9011 .cycle()
9012 .take(9)
9013 .flatten()
9014 .collect::<Vec<_>>();
9015 assert_eq!(
9016 expected_invisibles.len(),
9017 input_text
9018 .chars()
9019 .filter(|initial_char| initial_char.is_whitespace())
9020 .count(),
9021 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
9022 );
9023 info!("Expected invisibles: {expected_invisibles:?}");
9024
9025 init_test(cx, |_| {});
9026
9027 // Put the same string with repeating whitespace pattern into editors of various size,
9028 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
9029 let resize_step = 10.0;
9030 let mut editor_width = 200.0;
9031 while editor_width <= 1000.0 {
9032 for show_line_numbers in [true, false] {
9033 update_test_language_settings(cx, |s| {
9034 s.defaults.tab_size = NonZeroU32::new(tab_size);
9035 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
9036 s.defaults.preferred_line_length = Some(editor_width as u32);
9037 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
9038 });
9039
9040 let actual_invisibles = collect_invisibles_from_new_editor(
9041 cx,
9042 EditorMode::Full,
9043 &input_text,
9044 px(editor_width),
9045 show_line_numbers,
9046 );
9047
9048 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
9049 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
9050 let mut i = 0;
9051 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
9052 i = actual_index;
9053 match expected_invisibles.get(i) {
9054 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
9055 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
9056 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
9057 _ => {
9058 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
9059 }
9060 },
9061 None => {
9062 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
9063 }
9064 }
9065 }
9066 let missing_expected_invisibles = &expected_invisibles[i + 1..];
9067 assert!(
9068 missing_expected_invisibles.is_empty(),
9069 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
9070 );
9071
9072 editor_width += resize_step;
9073 }
9074 }
9075 }
9076
9077 fn collect_invisibles_from_new_editor(
9078 cx: &mut TestAppContext,
9079 editor_mode: EditorMode,
9080 input_text: &str,
9081 editor_width: Pixels,
9082 show_line_numbers: bool,
9083 ) -> Vec<Invisible> {
9084 info!(
9085 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
9086 editor_width.0
9087 );
9088 let window = cx.add_window(|window, cx| {
9089 let buffer = MultiBuffer::build_simple(input_text, cx);
9090 Editor::new(editor_mode, buffer, None, true, window, cx)
9091 });
9092 let cx = &mut VisualTestContext::from_window(*window, cx);
9093 let editor = window.root(cx).unwrap();
9094
9095 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
9096 window
9097 .update(cx, |editor, _, cx| {
9098 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
9099 editor.set_wrap_width(Some(editor_width), cx);
9100 editor.set_show_line_numbers(show_line_numbers, cx);
9101 })
9102 .unwrap();
9103 let (_, state) = cx.draw(
9104 point(px(500.), px(500.)),
9105 size(px(500.), px(500.)),
9106 |_, _| EditorElement::new(&editor, style),
9107 );
9108 state
9109 .position_map
9110 .line_layouts
9111 .iter()
9112 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
9113 .cloned()
9114 .collect()
9115 }
9116}
9117
9118fn diff_hunk_controls(
9119 row: u32,
9120 hunk_range: Range<Anchor>,
9121 line_height: Pixels,
9122 editor: &Entity<Editor>,
9123 cx: &mut App,
9124) -> AnyElement {
9125 h_flex()
9126 .h(line_height)
9127 .mr_1()
9128 .gap_1()
9129 .px_1()
9130 .pb_1()
9131 .border_b_1()
9132 .border_color(cx.theme().colors().border_variant)
9133 .rounded_b_lg()
9134 .bg(cx.theme().colors().editor_background)
9135 .gap_1()
9136 .child(
9137 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
9138 .shape(IconButtonShape::Square)
9139 .icon_size(IconSize::Small)
9140 // .disabled(!has_multiple_hunks)
9141 .tooltip({
9142 let focus_handle = editor.focus_handle(cx);
9143 move |window, cx| {
9144 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
9145 }
9146 })
9147 .on_click({
9148 let editor = editor.clone();
9149 move |_event, window, cx| {
9150 editor.update(cx, |editor, cx| {
9151 let snapshot = editor.snapshot(window, cx);
9152 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
9153 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
9154 editor.expand_selected_diff_hunks(cx);
9155 });
9156 }
9157 }),
9158 )
9159 .child(
9160 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
9161 .shape(IconButtonShape::Square)
9162 .icon_size(IconSize::Small)
9163 // .disabled(!has_multiple_hunks)
9164 .tooltip({
9165 let focus_handle = editor.focus_handle(cx);
9166 move |window, cx| {
9167 Tooltip::for_action_in(
9168 "Previous Hunk",
9169 &GoToPrevHunk,
9170 &focus_handle,
9171 window,
9172 cx,
9173 )
9174 }
9175 })
9176 .on_click({
9177 let editor = editor.clone();
9178 move |_event, window, cx| {
9179 editor.update(cx, |editor, cx| {
9180 let snapshot = editor.snapshot(window, cx);
9181 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9182 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
9183 editor.expand_selected_diff_hunks(cx);
9184 });
9185 }
9186 }),
9187 )
9188 .child(
9189 IconButton::new("discard", IconName::Undo)
9190 .shape(IconButtonShape::Square)
9191 .icon_size(IconSize::Small)
9192 .tooltip({
9193 let focus_handle = editor.focus_handle(cx);
9194 move |window, cx| {
9195 Tooltip::for_action_in(
9196 "Restore Hunk",
9197 &::git::Restore,
9198 &focus_handle,
9199 window,
9200 cx,
9201 )
9202 }
9203 })
9204 .on_click({
9205 let editor = editor.clone();
9206 move |_event, window, cx| {
9207 editor.update(cx, |editor, cx| {
9208 let snapshot = editor.snapshot(window, cx);
9209 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9210 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
9211 });
9212 }
9213 }),
9214 )
9215 .into_any_element()
9216}