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