1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 inlay_hint_settings,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
18 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
19 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayDiffHunk, DisplayPoint,
20 DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
21 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
22 GoToPreviousHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
23 InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight, LineUp,
24 OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight,
25 Selection, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS,
26 CURSORS_VISIBLE_FOR, 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, svg, transparent_black, Action, AnyElement, App,
37 AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners,
38 CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity, Focusable as _,
39 FontId, 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, MultiBufferPoint, MultiBufferRow,
56 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, ButtonStyle, 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::toggle_code_actions);
394 register_action(editor, window, Editor::open_excerpts);
395 register_action(editor, window, Editor::open_excerpts_in_split);
396 register_action(editor, window, Editor::open_proposed_changes_editor);
397 register_action(editor, window, Editor::toggle_soft_wrap);
398 register_action(editor, window, Editor::toggle_tab_bar);
399 register_action(editor, window, Editor::toggle_line_numbers);
400 register_action(editor, window, Editor::toggle_relative_line_numbers);
401 register_action(editor, window, Editor::toggle_indent_guides);
402 register_action(editor, window, Editor::toggle_inlay_hints);
403 register_action(editor, window, Editor::toggle_edit_predictions);
404 register_action(editor, window, Editor::toggle_inline_diagnostics);
405 register_action(editor, window, hover_popover::hover);
406 register_action(editor, window, Editor::reveal_in_finder);
407 register_action(editor, window, Editor::copy_path);
408 register_action(editor, window, Editor::copy_relative_path);
409 register_action(editor, window, Editor::copy_file_name);
410 register_action(editor, window, Editor::copy_file_name_without_extension);
411 register_action(editor, window, Editor::copy_highlight_json);
412 register_action(editor, window, Editor::copy_permalink_to_line);
413 register_action(editor, window, Editor::open_permalink_to_line);
414 register_action(editor, window, Editor::copy_file_location);
415 register_action(editor, window, Editor::toggle_git_blame);
416 register_action(editor, window, Editor::toggle_git_blame_inline);
417 register_action(editor, window, Editor::toggle_selected_diff_hunks);
418 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
419 register_action(editor, window, Editor::stage_and_next);
420 register_action(editor, window, Editor::unstage_and_next);
421 register_action(editor, window, Editor::expand_all_diff_hunks);
422
423 register_action(editor, window, |editor, action, window, cx| {
424 if let Some(task) = editor.format(action, window, cx) {
425 task.detach_and_notify_err(window, cx);
426 } else {
427 cx.propagate();
428 }
429 });
430 register_action(editor, window, |editor, action, window, cx| {
431 if let Some(task) = editor.format_selections(action, window, cx) {
432 task.detach_and_notify_err(window, cx);
433 } else {
434 cx.propagate();
435 }
436 });
437 register_action(editor, window, |editor, action, window, cx| {
438 if let Some(task) = editor.organize_imports(action, window, cx) {
439 task.detach_and_notify_err(window, cx);
440 } else {
441 cx.propagate();
442 }
443 });
444 register_action(editor, window, Editor::restart_language_server);
445 register_action(editor, window, Editor::show_character_palette);
446 register_action(editor, window, |editor, action, window, cx| {
447 if let Some(task) = editor.confirm_completion(action, window, cx) {
448 task.detach_and_notify_err(window, cx);
449 } else {
450 cx.propagate();
451 }
452 });
453 register_action(editor, window, |editor, action, window, cx| {
454 if let Some(task) = editor.compose_completion(action, window, cx) {
455 task.detach_and_notify_err(window, cx);
456 } else {
457 cx.propagate();
458 }
459 });
460 register_action(editor, window, |editor, action, window, cx| {
461 if let Some(task) = editor.confirm_code_action(action, window, cx) {
462 task.detach_and_notify_err(window, cx);
463 } else {
464 cx.propagate();
465 }
466 });
467 register_action(editor, window, |editor, action, window, cx| {
468 if let Some(task) = editor.rename(action, window, cx) {
469 task.detach_and_notify_err(window, cx);
470 } else {
471 cx.propagate();
472 }
473 });
474 register_action(editor, window, |editor, action, window, cx| {
475 if let Some(task) = editor.confirm_rename(action, window, cx) {
476 task.detach_and_notify_err(window, cx);
477 } else {
478 cx.propagate();
479 }
480 });
481 register_action(editor, window, |editor, action, window, cx| {
482 if let Some(task) = editor.find_all_references(action, window, cx) {
483 task.detach_and_log_err(cx);
484 } else {
485 cx.propagate();
486 }
487 });
488 register_action(editor, window, Editor::show_signature_help);
489 register_action(editor, window, Editor::next_edit_prediction);
490 register_action(editor, window, Editor::previous_edit_prediction);
491 register_action(editor, window, Editor::show_inline_completion);
492 register_action(editor, window, Editor::context_menu_first);
493 register_action(editor, window, Editor::context_menu_prev);
494 register_action(editor, window, Editor::context_menu_next);
495 register_action(editor, window, Editor::context_menu_last);
496 register_action(editor, window, Editor::display_cursor_names);
497 register_action(editor, window, Editor::unique_lines_case_insensitive);
498 register_action(editor, window, Editor::unique_lines_case_sensitive);
499 register_action(editor, window, Editor::accept_partial_inline_completion);
500 register_action(editor, window, Editor::accept_edit_prediction);
501 register_action(editor, window, Editor::restore_file);
502 register_action(editor, window, Editor::git_restore);
503 register_action(editor, window, Editor::apply_all_diff_hunks);
504 register_action(editor, window, Editor::apply_selected_diff_hunks);
505 register_action(editor, window, Editor::open_active_item_in_terminal);
506 register_action(editor, window, Editor::reload_file);
507 register_action(editor, window, Editor::spawn_nearest_task);
508 register_action(editor, window, Editor::insert_uuid_v4);
509 register_action(editor, window, Editor::insert_uuid_v7);
510 register_action(editor, window, Editor::open_selections_in_multibuffer);
511 }
512
513 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
514 let position_map = layout.position_map.clone();
515 window.on_key_event({
516 let editor = self.editor.clone();
517 move |event: &ModifiersChangedEvent, phase, window, cx| {
518 if phase != DispatchPhase::Bubble {
519 return;
520 }
521 editor.update(cx, |editor, cx| {
522 let inlay_hint_settings = inlay_hint_settings(
523 editor.selections.newest_anchor().head(),
524 &editor.buffer.read(cx).snapshot(cx),
525 cx,
526 );
527
528 if let Some(inlay_modifiers) = inlay_hint_settings
529 .toggle_on_modifiers_press
530 .as_ref()
531 .filter(|modifiers| modifiers.modified())
532 {
533 editor.refresh_inlay_hints(
534 InlayHintRefreshReason::ModifiersChanged(
535 inlay_modifiers == &event.modifiers,
536 ),
537 cx,
538 );
539 }
540
541 if editor.hover_state.focused(window, cx) {
542 return;
543 }
544
545 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
546 })
547 }
548 });
549 }
550
551 fn mouse_left_down(
552 editor: &mut Editor,
553 event: &MouseDownEvent,
554 hovered_hunk: Option<Range<Anchor>>,
555 position_map: &PositionMap,
556 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
557 window: &mut Window,
558 cx: &mut Context<Editor>,
559 ) {
560 if window.default_prevented() {
561 return;
562 }
563
564 let text_hitbox = &position_map.text_hitbox;
565 let gutter_hitbox = &position_map.gutter_hitbox;
566 let mut click_count = event.click_count;
567 let mut modifiers = event.modifiers;
568
569 if let Some(hovered_hunk) = hovered_hunk {
570 editor.toggle_single_diff_hunk(hovered_hunk, cx);
571 cx.notify();
572 return;
573 } else if gutter_hitbox.is_hovered(window) {
574 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
575 } else if !text_hitbox.is_hovered(window) {
576 return;
577 }
578
579 let is_singleton = editor.buffer().read(cx).is_singleton();
580
581 if click_count == 2 && !is_singleton {
582 match EditorSettings::get_global(cx).double_click_in_multibuffer {
583 DoubleClickInMultibuffer::Select => {
584 // do nothing special on double click, all selection logic is below
585 }
586 DoubleClickInMultibuffer::Open => {
587 if modifiers.alt {
588 // if double click is made with alt, pretend it's a regular double click without opening and alt,
589 // and run the selection logic.
590 modifiers.alt = false;
591 } else {
592 let scroll_position_row =
593 position_map.scroll_pixel_position.y / position_map.line_height;
594 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
595 + position_map.scroll_pixel_position.y)
596 / position_map.line_height)
597 as u32;
598 let multi_buffer_row = position_map
599 .snapshot
600 .display_point_to_point(
601 DisplayPoint::new(DisplayRow(display_row), 0),
602 Bias::Right,
603 )
604 .row;
605 let line_offset_from_top = display_row - scroll_position_row as u32;
606 // if double click is made without alt, open the corresponding excerp
607 editor.open_excerpts_common(
608 Some(JumpData::MultiBufferRow {
609 row: MultiBufferRow(multi_buffer_row),
610 line_offset_from_top,
611 }),
612 false,
613 window,
614 cx,
615 );
616 return;
617 }
618 }
619 }
620 }
621
622 let point_for_position = position_map.point_for_position(event.position);
623 let position = point_for_position.previous_valid;
624 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
625 editor.select(
626 SelectPhase::BeginColumnar {
627 position,
628 reset: false,
629 goal_column: point_for_position.exact_unclipped.column(),
630 },
631 window,
632 cx,
633 );
634 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
635 {
636 editor.select(
637 SelectPhase::Extend {
638 position,
639 click_count,
640 },
641 window,
642 cx,
643 );
644 } else {
645 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
646 let multi_cursor_modifier = match multi_cursor_setting {
647 MultiCursorModifier::Alt => modifiers.alt,
648 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
649 };
650 editor.select(
651 SelectPhase::Begin {
652 position,
653 add: multi_cursor_modifier,
654 click_count,
655 },
656 window,
657 cx,
658 );
659 }
660 cx.stop_propagation();
661
662 if !is_singleton {
663 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
664 + position_map.scroll_pixel_position.y)
665 / position_map.line_height) as u32;
666 let multi_buffer_row = position_map
667 .snapshot
668 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
669 .row;
670 if line_numbers
671 .get(&MultiBufferRow(multi_buffer_row))
672 .and_then(|line_number| line_number.hitbox.as_ref())
673 .is_some_and(|hitbox| hitbox.contains(&event.position))
674 {
675 let scroll_position_row =
676 position_map.scroll_pixel_position.y / position_map.line_height;
677 let line_offset_from_top = display_row - scroll_position_row as u32;
678
679 editor.open_excerpts_common(
680 Some(JumpData::MultiBufferRow {
681 row: MultiBufferRow(multi_buffer_row),
682 line_offset_from_top,
683 }),
684 modifiers.alt,
685 window,
686 cx,
687 );
688 cx.stop_propagation();
689 }
690 }
691 }
692
693 fn mouse_right_down(
694 editor: &mut Editor,
695 event: &MouseDownEvent,
696 position_map: &PositionMap,
697 window: &mut Window,
698 cx: &mut Context<Editor>,
699 ) {
700 if !position_map.text_hitbox.is_hovered(window) {
701 return;
702 }
703 let point_for_position = position_map.point_for_position(event.position);
704 mouse_context_menu::deploy_context_menu(
705 editor,
706 Some(event.position),
707 point_for_position.previous_valid,
708 window,
709 cx,
710 );
711 cx.stop_propagation();
712 }
713
714 fn mouse_middle_down(
715 editor: &mut Editor,
716 event: &MouseDownEvent,
717 position_map: &PositionMap,
718 window: &mut Window,
719 cx: &mut Context<Editor>,
720 ) {
721 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
722 return;
723 }
724
725 let point_for_position = position_map.point_for_position(event.position);
726 let position = point_for_position.previous_valid;
727
728 editor.select(
729 SelectPhase::BeginColumnar {
730 position,
731 reset: true,
732 goal_column: point_for_position.exact_unclipped.column(),
733 },
734 window,
735 cx,
736 );
737 }
738
739 fn mouse_up(
740 editor: &mut Editor,
741 event: &MouseUpEvent,
742 position_map: &PositionMap,
743 window: &mut Window,
744 cx: &mut Context<Editor>,
745 ) {
746 let text_hitbox = &position_map.text_hitbox;
747 let end_selection = editor.has_pending_selection();
748 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
749
750 if end_selection {
751 editor.select(SelectPhase::End, window, cx);
752 }
753
754 if end_selection && pending_nonempty_selections {
755 cx.stop_propagation();
756 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
757 && event.button == MouseButton::Middle
758 {
759 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
760 return;
761 }
762
763 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
764 if EditorSettings::get_global(cx).middle_click_paste {
765 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
766 let point_for_position = position_map.point_for_position(event.position);
767 let position = point_for_position.previous_valid;
768
769 editor.select(
770 SelectPhase::Begin {
771 position,
772 add: false,
773 click_count: 1,
774 },
775 window,
776 cx,
777 );
778 editor.insert(&text, window, cx);
779 }
780 cx.stop_propagation()
781 }
782 }
783 }
784
785 fn click(
786 editor: &mut Editor,
787 event: &ClickEvent,
788 position_map: &PositionMap,
789 window: &mut Window,
790 cx: &mut Context<Editor>,
791 ) {
792 let text_hitbox = &position_map.text_hitbox;
793 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
794
795 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
796 let multi_cursor_modifier = match multi_cursor_setting {
797 MultiCursorModifier::Alt => event.modifiers().secondary(),
798 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
799 };
800
801 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
802 let point = position_map.point_for_position(event.up.position);
803 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
804
805 cx.stop_propagation();
806 }
807 }
808
809 fn mouse_dragged(
810 editor: &mut Editor,
811 event: &MouseMoveEvent,
812 position_map: &PositionMap,
813 window: &mut Window,
814 cx: &mut Context<Editor>,
815 ) {
816 if !editor.has_pending_selection() {
817 return;
818 }
819
820 let text_bounds = position_map.text_hitbox.bounds;
821 let point_for_position = position_map.point_for_position(event.position);
822 let mut scroll_delta = gpui::Point::<f32>::default();
823 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
824 let top = text_bounds.origin.y + vertical_margin;
825 let bottom = text_bounds.bottom_left().y - vertical_margin;
826 if event.position.y < top {
827 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
828 }
829 if event.position.y > bottom {
830 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
831 }
832
833 // We need horizontal width of text
834 let style = editor.style.clone().unwrap_or_default();
835 let font_id = window.text_system().resolve_font(&style.text.font());
836 let font_size = style.text.font_size.to_pixels(window.rem_size());
837 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
838
839 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
840
841 let scroll_space: Pixels = scroll_margin_x * em_width;
842
843 let left = text_bounds.origin.x + scroll_space;
844 let right = text_bounds.top_right().x - scroll_space;
845
846 if event.position.x < left {
847 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
848 }
849 if event.position.x > right {
850 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
851 }
852
853 editor.select(
854 SelectPhase::Update {
855 position: point_for_position.previous_valid,
856 goal_column: point_for_position.exact_unclipped.column(),
857 scroll_delta,
858 },
859 window,
860 cx,
861 );
862 }
863
864 fn mouse_moved(
865 editor: &mut Editor,
866 event: &MouseMoveEvent,
867 position_map: &PositionMap,
868 window: &mut Window,
869 cx: &mut Context<Editor>,
870 ) {
871 let text_hitbox = &position_map.text_hitbox;
872 let gutter_hitbox = &position_map.gutter_hitbox;
873 let modifiers = event.modifiers;
874 let gutter_hovered = gutter_hitbox.is_hovered(window);
875 editor.set_gutter_hovered(gutter_hovered, cx);
876
877 // Don't trigger hover popover if mouse is hovering over context menu
878 if text_hitbox.is_hovered(window) {
879 let point_for_position = position_map.point_for_position(event.position);
880
881 editor.update_hovered_link(
882 point_for_position,
883 &position_map.snapshot,
884 modifiers,
885 window,
886 cx,
887 );
888
889 if let Some(point) = point_for_position.as_valid() {
890 let anchor = position_map
891 .snapshot
892 .buffer_snapshot
893 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
894 hover_at(editor, Some(anchor), window, cx);
895 Self::update_visible_cursor(editor, point, position_map, window, cx);
896 } else {
897 hover_at(editor, None, window, cx);
898 }
899 } else {
900 editor.hide_hovered_link(cx);
901 hover_at(editor, None, window, cx);
902 if gutter_hovered {
903 cx.stop_propagation();
904 }
905 }
906 }
907
908 fn update_visible_cursor(
909 editor: &mut Editor,
910 point: DisplayPoint,
911 position_map: &PositionMap,
912 window: &mut Window,
913 cx: &mut Context<Editor>,
914 ) {
915 let snapshot = &position_map.snapshot;
916 let Some(hub) = editor.collaboration_hub() else {
917 return;
918 };
919 let start = snapshot.display_snapshot.clip_point(
920 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
921 Bias::Left,
922 );
923 let end = snapshot.display_snapshot.clip_point(
924 DisplayPoint::new(
925 point.row(),
926 (point.column() + 1).min(snapshot.line_len(point.row())),
927 ),
928 Bias::Right,
929 );
930
931 let range = snapshot
932 .buffer_snapshot
933 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
934 ..snapshot
935 .buffer_snapshot
936 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
937
938 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
939 return;
940 };
941 let key = crate::HoveredCursor {
942 replica_id: selection.replica_id,
943 selection_id: selection.selection.id,
944 };
945 editor.hovered_cursors.insert(
946 key.clone(),
947 cx.spawn_in(window, |editor, mut cx| async move {
948 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
949 editor
950 .update(&mut cx, |editor, cx| {
951 editor.hovered_cursors.remove(&key);
952 cx.notify();
953 })
954 .ok();
955 }),
956 );
957 cx.notify()
958 }
959
960 fn layout_selections(
961 &self,
962 start_anchor: Anchor,
963 end_anchor: Anchor,
964 local_selections: &[Selection<Point>],
965 snapshot: &EditorSnapshot,
966 start_row: DisplayRow,
967 end_row: DisplayRow,
968 window: &mut Window,
969 cx: &mut App,
970 ) -> (
971 Vec<(PlayerColor, Vec<SelectionLayout>)>,
972 BTreeMap<DisplayRow, bool>,
973 Option<DisplayPoint>,
974 ) {
975 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
976 let mut active_rows = BTreeMap::new();
977 let mut newest_selection_head = None;
978 self.editor.update(cx, |editor, cx| {
979 if editor.show_local_selections {
980 let mut layouts = Vec::new();
981 let newest = editor.selections.newest(cx);
982 for selection in local_selections.iter().cloned() {
983 let is_empty = selection.start == selection.end;
984 let is_newest = selection == newest;
985
986 let layout = SelectionLayout::new(
987 selection,
988 editor.selections.line_mode,
989 editor.cursor_shape,
990 &snapshot.display_snapshot,
991 is_newest,
992 editor.leader_peer_id.is_none(),
993 None,
994 );
995 if is_newest {
996 newest_selection_head = Some(layout.head);
997 }
998
999 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1000 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1001 {
1002 let contains_non_empty_selection =
1003 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
1004 *contains_non_empty_selection |= !is_empty;
1005 }
1006 layouts.push(layout);
1007 }
1008
1009 let player = editor.current_user_player_color(cx);
1010 selections.push((player, layouts));
1011 }
1012
1013 if let Some(collaboration_hub) = &editor.collaboration_hub {
1014 // When following someone, render the local selections in their color.
1015 if let Some(leader_id) = editor.leader_peer_id {
1016 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1017 {
1018 if let Some(participant_index) = collaboration_hub
1019 .user_participant_indices(cx)
1020 .get(&collaborator.user_id)
1021 {
1022 if let Some((local_selection_style, _)) = selections.first_mut() {
1023 *local_selection_style = cx
1024 .theme()
1025 .players()
1026 .color_for_participant(participant_index.0);
1027 }
1028 }
1029 }
1030 }
1031
1032 let mut remote_selections = HashMap::default();
1033 for selection in snapshot.remote_selections_in_range(
1034 &(start_anchor..end_anchor),
1035 collaboration_hub.as_ref(),
1036 cx,
1037 ) {
1038 let selection_style =
1039 Self::get_participant_color(selection.participant_index, cx);
1040
1041 // Don't re-render the leader's selections, since the local selections
1042 // match theirs.
1043 if Some(selection.peer_id) == editor.leader_peer_id {
1044 continue;
1045 }
1046 let key = HoveredCursor {
1047 replica_id: selection.replica_id,
1048 selection_id: selection.selection.id,
1049 };
1050
1051 let is_shown =
1052 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1053
1054 remote_selections
1055 .entry(selection.replica_id)
1056 .or_insert((selection_style, Vec::new()))
1057 .1
1058 .push(SelectionLayout::new(
1059 selection.selection,
1060 selection.line_mode,
1061 selection.cursor_shape,
1062 &snapshot.display_snapshot,
1063 false,
1064 false,
1065 if is_shown { selection.user_name } else { None },
1066 ));
1067 }
1068
1069 selections.extend(remote_selections.into_values());
1070 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1071 let layouts = snapshot
1072 .buffer_snapshot
1073 .selections_in_range(&(start_anchor..end_anchor), true)
1074 .map(move |(_, line_mode, cursor_shape, selection)| {
1075 SelectionLayout::new(
1076 selection,
1077 line_mode,
1078 cursor_shape,
1079 &snapshot.display_snapshot,
1080 false,
1081 false,
1082 None,
1083 )
1084 })
1085 .collect::<Vec<_>>();
1086 let player = editor.current_user_player_color(cx);
1087 selections.push((player, layouts));
1088 }
1089 });
1090 (selections, active_rows, newest_selection_head)
1091 }
1092
1093 fn collect_cursors(
1094 &self,
1095 snapshot: &EditorSnapshot,
1096 cx: &mut App,
1097 ) -> Vec<(DisplayPoint, Hsla)> {
1098 let editor = self.editor.read(cx);
1099 let mut cursors = Vec::new();
1100 let mut skip_local = false;
1101 let mut add_cursor = |anchor: Anchor, color| {
1102 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1103 };
1104 // Remote cursors
1105 if let Some(collaboration_hub) = &editor.collaboration_hub {
1106 for remote_selection in snapshot.remote_selections_in_range(
1107 &(Anchor::min()..Anchor::max()),
1108 collaboration_hub.deref(),
1109 cx,
1110 ) {
1111 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1112 add_cursor(remote_selection.selection.head(), color.cursor);
1113 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1114 skip_local = true;
1115 }
1116 }
1117 }
1118 // Local cursors
1119 if !skip_local {
1120 let color = cx.theme().players().local().cursor;
1121 editor.selections.disjoint.iter().for_each(|selection| {
1122 add_cursor(selection.head(), color);
1123 });
1124 if let Some(ref selection) = editor.selections.pending_anchor() {
1125 add_cursor(selection.head(), color);
1126 }
1127 }
1128 cursors
1129 }
1130
1131 fn layout_visible_cursors(
1132 &self,
1133 snapshot: &EditorSnapshot,
1134 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1135 block_start_rows: &HashSet<DisplayRow>,
1136 visible_display_row_range: Range<DisplayRow>,
1137 line_layouts: &[LineWithInvisibles],
1138 text_hitbox: &Hitbox,
1139 content_origin: gpui::Point<Pixels>,
1140 scroll_position: gpui::Point<f32>,
1141 scroll_pixel_position: gpui::Point<Pixels>,
1142 line_height: Pixels,
1143 em_width: Pixels,
1144 em_advance: Pixels,
1145 autoscroll_containing_element: bool,
1146 window: &mut Window,
1147 cx: &mut App,
1148 ) -> Vec<CursorLayout> {
1149 let mut autoscroll_bounds = None;
1150 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1151 let mut cursors = Vec::new();
1152
1153 let show_local_cursors = editor.show_local_cursors(window, cx);
1154
1155 for (player_color, selections) in selections {
1156 for selection in selections {
1157 let cursor_position = selection.head;
1158
1159 let in_range = visible_display_row_range.contains(&cursor_position.row());
1160 if (selection.is_local && !show_local_cursors)
1161 || !in_range
1162 || block_start_rows.contains(&cursor_position.row())
1163 {
1164 continue;
1165 }
1166
1167 let cursor_row_layout = &line_layouts
1168 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1169 let cursor_column = cursor_position.column() as usize;
1170
1171 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1172 let mut block_width =
1173 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1174 if block_width == Pixels::ZERO {
1175 block_width = em_advance;
1176 }
1177 let block_text = if let CursorShape::Block = selection.cursor_shape {
1178 snapshot
1179 .grapheme_at(cursor_position)
1180 .or_else(|| {
1181 if cursor_column == 0 {
1182 snapshot.placeholder_text().and_then(|s| {
1183 s.graphemes(true).next().map(|s| s.to_string().into())
1184 })
1185 } else {
1186 None
1187 }
1188 })
1189 .and_then(|text| {
1190 let len = text.len();
1191
1192 let font = cursor_row_layout
1193 .font_id_for_index(cursor_column)
1194 .and_then(|cursor_font_id| {
1195 window.text_system().get_font_for_id(cursor_font_id)
1196 })
1197 .unwrap_or(self.style.text.font());
1198
1199 // Invert the text color for the block cursor. Ensure that the text
1200 // color is opaque enough to be visible against the background color.
1201 //
1202 // 0.75 is an arbitrary threshold to determine if the background color is
1203 // opaque enough to use as a text color.
1204 //
1205 // TODO: In the future we should ensure themes have a `text_inverse` color.
1206 let color = if cx.theme().colors().editor_background.a < 0.75 {
1207 match cx.theme().appearance {
1208 Appearance::Dark => Hsla::black(),
1209 Appearance::Light => Hsla::white(),
1210 }
1211 } else {
1212 cx.theme().colors().editor_background
1213 };
1214
1215 window
1216 .text_system()
1217 .shape_line(
1218 text,
1219 cursor_row_layout.font_size,
1220 &[TextRun {
1221 len,
1222 font,
1223 color,
1224 background_color: None,
1225 strikethrough: None,
1226 underline: None,
1227 }],
1228 )
1229 .log_err()
1230 })
1231 } else {
1232 None
1233 };
1234
1235 let x = cursor_character_x - scroll_pixel_position.x;
1236 let y = (cursor_position.row().as_f32()
1237 - scroll_pixel_position.y / line_height)
1238 * line_height;
1239 if selection.is_newest {
1240 editor.pixel_position_of_newest_cursor = Some(point(
1241 text_hitbox.origin.x + x + block_width / 2.,
1242 text_hitbox.origin.y + y + line_height / 2.,
1243 ));
1244
1245 if autoscroll_containing_element {
1246 let top = text_hitbox.origin.y
1247 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1248 * line_height;
1249 let left = text_hitbox.origin.x
1250 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1251 .max(0.)
1252 * em_width;
1253
1254 let bottom = text_hitbox.origin.y
1255 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1256 * line_height;
1257 let right = text_hitbox.origin.x
1258 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1259 * em_width;
1260
1261 autoscroll_bounds =
1262 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1263 }
1264 }
1265
1266 let mut cursor = CursorLayout {
1267 color: player_color.cursor,
1268 block_width,
1269 origin: point(x, y),
1270 line_height,
1271 shape: selection.cursor_shape,
1272 block_text,
1273 cursor_name: None,
1274 };
1275 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1276 string: name,
1277 color: self.style.background,
1278 is_top_row: cursor_position.row().0 == 0,
1279 });
1280 cursor.layout(content_origin, cursor_name, window, cx);
1281 cursors.push(cursor);
1282 }
1283 }
1284
1285 cursors
1286 });
1287
1288 if let Some(bounds) = autoscroll_bounds {
1289 window.request_autoscroll(bounds);
1290 }
1291
1292 cursor_layouts
1293 }
1294
1295 fn layout_scrollbars(
1296 &self,
1297 snapshot: &EditorSnapshot,
1298 scrollbar_range_data: ScrollbarRangeData,
1299 scroll_position: gpui::Point<f32>,
1300 non_visible_cursors: bool,
1301 window: &mut Window,
1302 cx: &mut App,
1303 ) -> AxisPair<Option<ScrollbarLayout>> {
1304 let letter_size = scrollbar_range_data.letter_size;
1305 let text_units_per_page = axis_pair(
1306 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1307 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1308 );
1309
1310 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1311 let show_scrollbars = self.editor.read(cx).show_scrollbars
1312 && match scrollbar_settings.show {
1313 ShowScrollbar::Auto => {
1314 let editor = self.editor.read(cx);
1315 let is_singleton = editor.is_singleton(cx);
1316 // Git
1317 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1318 ||
1319 // Buffer Search Results
1320 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1321 ||
1322 // Selected Text Occurrences
1323 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1324 ||
1325 // Selected Symbol Occurrences
1326 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1327 ||
1328 // Diagnostics
1329 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1330 ||
1331 // Cursors out of sight
1332 non_visible_cursors
1333 ||
1334 // Scrollmanager
1335 editor.scroll_manager.scrollbars_visible()
1336 }
1337 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1338 ShowScrollbar::Always => true,
1339 ShowScrollbar::Never => false,
1340 };
1341
1342 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1343
1344 if snapshot.mode != EditorMode::Full {
1345 return axis_pair(None, None);
1346 }
1347
1348 let visible_range = axis_pair(
1349 axes.horizontal
1350 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1351 axes.vertical
1352 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1353 );
1354
1355 // If a drag took place after we started dragging the scrollbar,
1356 // cancel the scrollbar drag.
1357 if cx.has_active_drag() {
1358 self.editor.update(cx, |editor, cx| {
1359 editor
1360 .scroll_manager
1361 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1362 editor
1363 .scroll_manager
1364 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1365 });
1366 }
1367
1368 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1369
1370 let track_bounds = axis_pair(
1371 axes.horizontal.then(|| {
1372 Bounds::from_corners(
1373 point(
1374 text_bounds.bottom_left().x,
1375 text_bounds.bottom_left().y - self.style.scrollbar_width,
1376 ),
1377 point(
1378 text_bounds.bottom_right().x
1379 - if axes.vertical {
1380 self.style.scrollbar_width
1381 } else {
1382 px(0.)
1383 },
1384 text_bounds.bottom_right().y,
1385 ),
1386 )
1387 }),
1388 axes.vertical.then(|| {
1389 Bounds::from_corners(
1390 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1391 text_bounds.bottom_right(),
1392 )
1393 }),
1394 );
1395
1396 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1397 let total_text_units = axis_pair(
1398 Some(scroll_range_size.width / letter_size.width),
1399 Some(scroll_range_size.height / letter_size.height),
1400 );
1401
1402 let thumb_size = axis_pair(
1403 total_text_units
1404 .horizontal
1405 .zip(track_bounds.horizontal)
1406 .and_then(|(total_text_units_x, track_bounds_x)| {
1407 if text_units_per_page.horizontal >= total_text_units_x {
1408 return None;
1409 }
1410 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1411 return Some(track_bounds_x.size.width);
1412 }
1413 let thumb_size = track_bounds_x.size.width
1414 * (text_units_per_page.horizontal / total_text_units_x);
1415 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1416 }),
1417 total_text_units.vertical.zip(track_bounds.vertical).map(
1418 |(total_text_units_y, track_bounds_y)| {
1419 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1420 return track_bounds_y.size.height;
1421 }
1422 let thumb_size = track_bounds_y.size.height
1423 * (text_units_per_page.vertical / total_text_units_y);
1424 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1425 },
1426 ),
1427 );
1428
1429 // NOTE: Space not taken by track bounds divided by text units not on screen
1430 let text_unit_size = axis_pair(
1431 thumb_size
1432 .horizontal
1433 .zip(track_bounds.horizontal)
1434 .zip(total_text_units.horizontal)
1435 .map(|((thumb_size, track_bounds), total_text_units)| {
1436 (track_bounds.size.width - thumb_size)
1437 / (total_text_units - text_units_per_page.horizontal).max(0.)
1438 }),
1439 thumb_size
1440 .vertical
1441 .zip(track_bounds.vertical)
1442 .zip(total_text_units.vertical)
1443 .map(|((thumb_size, track_bounds), total_text_units)| {
1444 (track_bounds.size.height - thumb_size)
1445 / (total_text_units - text_units_per_page.vertical).max(0.)
1446 }),
1447 );
1448
1449 let horizontal_scrollbar = track_bounds
1450 .horizontal
1451 .zip(visible_range.horizontal)
1452 .zip(text_unit_size.horizontal)
1453 .zip(thumb_size.horizontal)
1454 .map(
1455 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1456 hitbox: window.insert_hitbox(track_bounds, false),
1457 visible_range,
1458 text_unit_size,
1459 visible: show_scrollbars,
1460 thumb_size,
1461 axis: Axis::Horizontal,
1462 },
1463 );
1464
1465 let vertical_scrollbar = track_bounds
1466 .vertical
1467 .zip(visible_range.vertical)
1468 .zip(text_unit_size.vertical)
1469 .zip(thumb_size.vertical)
1470 .map(
1471 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1472 hitbox: window.insert_hitbox(track_bounds, false),
1473 visible_range,
1474 text_unit_size,
1475 visible: show_scrollbars,
1476 thumb_size,
1477 axis: Axis::Vertical,
1478 },
1479 );
1480
1481 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1482 }
1483
1484 fn prepaint_crease_toggles(
1485 &self,
1486 crease_toggles: &mut [Option<AnyElement>],
1487 line_height: Pixels,
1488 gutter_dimensions: &GutterDimensions,
1489 gutter_settings: crate::editor_settings::Gutter,
1490 scroll_pixel_position: gpui::Point<Pixels>,
1491 gutter_hitbox: &Hitbox,
1492 window: &mut Window,
1493 cx: &mut App,
1494 ) {
1495 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1496 if let Some(crease_toggle) = crease_toggle {
1497 debug_assert!(gutter_settings.folds);
1498 let available_space = size(
1499 AvailableSpace::MinContent,
1500 AvailableSpace::Definite(line_height * 0.55),
1501 );
1502 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1503
1504 let position = point(
1505 gutter_dimensions.width - gutter_dimensions.right_padding,
1506 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1507 );
1508 let centering_offset = point(
1509 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1510 (line_height - crease_toggle_size.height) / 2.,
1511 );
1512 let origin = gutter_hitbox.origin + position + centering_offset;
1513 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1514 }
1515 }
1516 }
1517
1518 fn prepaint_crease_trailers(
1519 &self,
1520 trailers: Vec<Option<AnyElement>>,
1521 lines: &[LineWithInvisibles],
1522 line_height: Pixels,
1523 content_origin: gpui::Point<Pixels>,
1524 scroll_pixel_position: gpui::Point<Pixels>,
1525 em_width: Pixels,
1526 window: &mut Window,
1527 cx: &mut App,
1528 ) -> Vec<Option<CreaseTrailerLayout>> {
1529 trailers
1530 .into_iter()
1531 .enumerate()
1532 .map(|(ix, element)| {
1533 let mut element = element?;
1534 let available_space = size(
1535 AvailableSpace::MinContent,
1536 AvailableSpace::Definite(line_height),
1537 );
1538 let size = element.layout_as_root(available_space, window, cx);
1539
1540 let line = &lines[ix];
1541 let padding = if line.width == Pixels::ZERO {
1542 Pixels::ZERO
1543 } else {
1544 4. * em_width
1545 };
1546 let position = point(
1547 scroll_pixel_position.x + line.width + padding,
1548 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1549 );
1550 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1551 let origin = content_origin + position + centering_offset;
1552 element.prepaint_as_root(origin, available_space, window, cx);
1553 Some(CreaseTrailerLayout {
1554 element,
1555 bounds: Bounds::new(origin, size),
1556 })
1557 })
1558 .collect()
1559 }
1560
1561 // Folds contained in a hunk are ignored apart from shrinking visual size
1562 // If a fold contains any hunks then that fold line is marked as modified
1563 fn layout_gutter_diff_hunks(
1564 &self,
1565 line_height: Pixels,
1566 gutter_hitbox: &Hitbox,
1567 display_rows: Range<DisplayRow>,
1568 snapshot: &EditorSnapshot,
1569 window: &mut Window,
1570 cx: &mut App,
1571 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1572 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1573 let mut display_hunks = snapshot
1574 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1575 .map(|hunk| (hunk, None))
1576 .collect::<Vec<_>>();
1577 let git_gutter_setting = ProjectSettings::get_global(cx)
1578 .git
1579 .git_gutter
1580 .unwrap_or_default();
1581 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1582 for (hunk, hitbox) in &mut display_hunks {
1583 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1584 let hunk_bounds =
1585 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1586 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1587 }
1588 }
1589 }
1590
1591 display_hunks
1592 }
1593
1594 fn layout_inline_diagnostics(
1595 &self,
1596 line_layouts: &[LineWithInvisibles],
1597 crease_trailers: &[Option<CreaseTrailerLayout>],
1598 content_origin: gpui::Point<Pixels>,
1599 scroll_pixel_position: gpui::Point<Pixels>,
1600 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1601 start_row: DisplayRow,
1602 end_row: DisplayRow,
1603 line_height: Pixels,
1604 em_width: Pixels,
1605 style: &EditorStyle,
1606 window: &mut Window,
1607 cx: &mut App,
1608 ) -> HashMap<DisplayRow, AnyElement> {
1609 let max_severity = ProjectSettings::get_global(cx)
1610 .diagnostics
1611 .inline
1612 .max_severity
1613 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1614 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1615 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1616 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1617 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1618 });
1619
1620 let active_diagnostics_group = self
1621 .editor
1622 .read(cx)
1623 .active_diagnostics
1624 .as_ref()
1625 .map(|active_diagnostics| active_diagnostics.group_id);
1626
1627 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1628 let snapshot = editor.snapshot(window, cx);
1629 editor
1630 .inline_diagnostics
1631 .iter()
1632 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1633 .filter(|(_, diagnostic)| match active_diagnostics_group {
1634 Some(active_diagnostics_group) => {
1635 // Active diagnostics are all shown in the editor already, no need to display them inline
1636 diagnostic.group_id != active_diagnostics_group
1637 }
1638 None => true,
1639 })
1640 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1641 .skip_while(|(point, _)| point.row() < start_row)
1642 .take_while(|(point, _)| point.row() < end_row)
1643 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1644 acc.entry(point.row())
1645 .or_insert_with(Vec::new)
1646 .push(diagnostic);
1647 acc
1648 })
1649 });
1650
1651 if diagnostics_by_rows.is_empty() {
1652 return HashMap::default();
1653 }
1654
1655 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1656 &DiagnosticSeverity::ERROR => Color::Error,
1657 &DiagnosticSeverity::WARNING => Color::Warning,
1658 &DiagnosticSeverity::INFORMATION => Color::Info,
1659 &DiagnosticSeverity::HINT => Color::Hint,
1660 _ => Color::Error,
1661 };
1662
1663 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1664 let min_x = ProjectSettings::get_global(cx)
1665 .diagnostics
1666 .inline
1667 .min_column as f32
1668 * em_width;
1669
1670 let mut elements = HashMap::default();
1671 for (row, mut diagnostics) in diagnostics_by_rows {
1672 diagnostics.sort_by_key(|diagnostic| {
1673 (
1674 diagnostic.severity,
1675 std::cmp::Reverse(diagnostic.is_primary),
1676 diagnostic.start.row,
1677 diagnostic.start.column,
1678 )
1679 });
1680
1681 let Some(diagnostic_to_render) = diagnostics
1682 .iter()
1683 .find(|diagnostic| diagnostic.is_primary)
1684 .or_else(|| diagnostics.first())
1685 else {
1686 continue;
1687 };
1688
1689 let pos_y = content_origin.y
1690 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1691
1692 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1693 let pos_x = {
1694 let crease_trailer_layout = &crease_trailers[window_ix];
1695 let line_layout = &line_layouts[window_ix];
1696
1697 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1698 crease_trailer.bounds.right()
1699 } else {
1700 content_origin.x - scroll_pixel_position.x + line_layout.width
1701 };
1702
1703 let padded_line = line_end + padding;
1704 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1705
1706 cmp::max(padded_line, min_start)
1707 };
1708
1709 let behind_inline_completion_popover = inline_completion_popover_origin
1710 .as_ref()
1711 .map_or(false, |inline_completion_popover_origin| {
1712 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1713 });
1714 let opacity = if behind_inline_completion_popover {
1715 0.5
1716 } else {
1717 1.0
1718 };
1719
1720 let mut element = h_flex()
1721 .id(("diagnostic", row.0))
1722 .h(line_height)
1723 .w_full()
1724 .px_1()
1725 .rounded_xs()
1726 .opacity(opacity)
1727 .bg(severity_to_color(&diagnostic_to_render.severity)
1728 .color(cx)
1729 .opacity(0.05))
1730 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1731 .text_sm()
1732 .font_family(style.text.font().family)
1733 .child(diagnostic_to_render.message.clone())
1734 .into_any();
1735
1736 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1737
1738 elements.insert(row, element);
1739 }
1740
1741 elements
1742 }
1743
1744 fn layout_inline_blame(
1745 &self,
1746 display_row: DisplayRow,
1747 row_info: &RowInfo,
1748 line_layout: &LineWithInvisibles,
1749 crease_trailer: Option<&CreaseTrailerLayout>,
1750 em_width: Pixels,
1751 content_origin: gpui::Point<Pixels>,
1752 scroll_pixel_position: gpui::Point<Pixels>,
1753 line_height: Pixels,
1754 window: &mut Window,
1755 cx: &mut App,
1756 ) -> Option<AnyElement> {
1757 if !self
1758 .editor
1759 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1760 {
1761 return None;
1762 }
1763
1764 let editor = self.editor.read(cx);
1765 let blame = editor.blame.clone()?;
1766 let padding = {
1767 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1768 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1769
1770 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1771
1772 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1773 match &inline_completion.completion {
1774 InlineCompletion::Edit {
1775 display_mode: EditDisplayMode::TabAccept,
1776 ..
1777 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1778 _ => {}
1779 }
1780 }
1781
1782 padding * em_width
1783 };
1784
1785 let blame_entry = blame
1786 .update(cx, |blame, cx| {
1787 blame.blame_for_rows(&[*row_info], cx).next()
1788 })
1789 .flatten()?;
1790
1791 let mut element =
1792 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1793
1794 let start_y = content_origin.y
1795 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1796
1797 let start_x = {
1798 let line_end = if let Some(crease_trailer) = crease_trailer {
1799 crease_trailer.bounds.right()
1800 } else {
1801 content_origin.x - scroll_pixel_position.x + line_layout.width
1802 };
1803
1804 let padded_line_end = line_end + padding;
1805
1806 let min_column_in_pixels = ProjectSettings::get_global(cx)
1807 .git
1808 .inline_blame
1809 .and_then(|settings| settings.min_column)
1810 .map(|col| self.column_pixels(col as usize, window, cx))
1811 .unwrap_or(px(0.));
1812 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1813
1814 cmp::max(padded_line_end, min_start)
1815 };
1816
1817 let absolute_offset = point(start_x, start_y);
1818 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1819
1820 Some(element)
1821 }
1822
1823 fn layout_blame_entries(
1824 &self,
1825 buffer_rows: &[RowInfo],
1826 em_width: Pixels,
1827 scroll_position: gpui::Point<f32>,
1828 line_height: Pixels,
1829 gutter_hitbox: &Hitbox,
1830 max_width: Option<Pixels>,
1831 window: &mut Window,
1832 cx: &mut App,
1833 ) -> Option<Vec<AnyElement>> {
1834 if !self
1835 .editor
1836 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1837 {
1838 return None;
1839 }
1840
1841 let blame = self.editor.read(cx).blame.clone()?;
1842 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1843 blame.blame_for_rows(buffer_rows, cx).collect()
1844 });
1845
1846 let width = if let Some(max_width) = max_width {
1847 AvailableSpace::Definite(max_width)
1848 } else {
1849 AvailableSpace::MaxContent
1850 };
1851 let scroll_top = scroll_position.y * line_height;
1852 let start_x = em_width;
1853
1854 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1855
1856 let shaped_lines = blamed_rows
1857 .into_iter()
1858 .enumerate()
1859 .flat_map(|(ix, blame_entry)| {
1860 if let Some(blame_entry) = blame_entry {
1861 let mut element = render_blame_entry(
1862 ix,
1863 &blame,
1864 blame_entry,
1865 &self.style,
1866 &mut last_used_color,
1867 self.editor.clone(),
1868 cx,
1869 );
1870
1871 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1872 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1873
1874 element.prepaint_as_root(
1875 absolute_offset,
1876 size(width, AvailableSpace::MinContent),
1877 window,
1878 cx,
1879 );
1880
1881 Some(element)
1882 } else {
1883 None
1884 }
1885 })
1886 .collect();
1887
1888 Some(shaped_lines)
1889 }
1890
1891 fn layout_indent_guides(
1892 &self,
1893 content_origin: gpui::Point<Pixels>,
1894 text_origin: gpui::Point<Pixels>,
1895 visible_buffer_range: Range<MultiBufferRow>,
1896 scroll_pixel_position: gpui::Point<Pixels>,
1897 line_height: Pixels,
1898 snapshot: &DisplaySnapshot,
1899 window: &mut Window,
1900 cx: &mut App,
1901 ) -> Option<Vec<IndentGuideLayout>> {
1902 let indent_guides = self.editor.update(cx, |editor, cx| {
1903 editor.indent_guides(visible_buffer_range, snapshot, cx)
1904 })?;
1905
1906 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1907 editor
1908 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1909 .unwrap_or_default()
1910 });
1911
1912 Some(
1913 indent_guides
1914 .into_iter()
1915 .enumerate()
1916 .filter_map(|(i, indent_guide)| {
1917 let single_indent_width =
1918 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1919 let total_width = single_indent_width * indent_guide.depth as f32;
1920 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1921 if start_x >= text_origin.x {
1922 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1923 indent_guide.start_row..indent_guide.end_row,
1924 line_height,
1925 snapshot,
1926 );
1927
1928 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1929
1930 Some(IndentGuideLayout {
1931 origin: point(start_x, start_y),
1932 length,
1933 single_indent_width,
1934 depth: indent_guide.depth,
1935 active: active_indent_guide_indices.contains(&i),
1936 settings: indent_guide.settings,
1937 })
1938 } else {
1939 None
1940 }
1941 })
1942 .collect(),
1943 )
1944 }
1945
1946 fn calculate_indent_guide_bounds(
1947 row_range: Range<MultiBufferRow>,
1948 line_height: Pixels,
1949 snapshot: &DisplaySnapshot,
1950 ) -> (gpui::Pixels, gpui::Pixels) {
1951 let start_point = Point::new(row_range.start.0, 0);
1952 let end_point = Point::new(row_range.end.0, 0);
1953
1954 let row_range = start_point.to_display_point(snapshot).row()
1955 ..end_point.to_display_point(snapshot).row();
1956
1957 let mut prev_line = start_point;
1958 prev_line.row = prev_line.row.saturating_sub(1);
1959 let prev_line = prev_line.to_display_point(snapshot).row();
1960
1961 let mut cons_line = end_point;
1962 cons_line.row += 1;
1963 let cons_line = cons_line.to_display_point(snapshot).row();
1964
1965 let mut offset_y = row_range.start.0 as f32 * line_height;
1966 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1967
1968 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1969 if row_range.end == cons_line {
1970 length += line_height;
1971 }
1972
1973 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1974 // we want to extend the indent guide to the start of the block.
1975 let mut block_height = 0;
1976 let mut block_offset = 0;
1977 let mut found_excerpt_header = false;
1978 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1979 if matches!(block, Block::ExcerptBoundary { .. }) {
1980 found_excerpt_header = true;
1981 break;
1982 }
1983 block_offset += block.height();
1984 block_height += block.height();
1985 }
1986 if !found_excerpt_header {
1987 offset_y -= block_offset as f32 * line_height;
1988 length += block_height as f32 * line_height;
1989 }
1990
1991 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1992 // we want to ensure that the indent guide stops before the excerpt header.
1993 let mut block_height = 0;
1994 let mut found_excerpt_header = false;
1995 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1996 if matches!(block, Block::ExcerptBoundary { .. }) {
1997 found_excerpt_header = true;
1998 }
1999 block_height += block.height();
2000 }
2001 if found_excerpt_header {
2002 length -= block_height as f32 * line_height;
2003 }
2004
2005 (offset_y, length)
2006 }
2007
2008 fn layout_run_indicators(
2009 &self,
2010 line_height: Pixels,
2011 range: Range<DisplayRow>,
2012 scroll_pixel_position: gpui::Point<Pixels>,
2013 gutter_dimensions: &GutterDimensions,
2014 gutter_hitbox: &Hitbox,
2015 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2016 snapshot: &EditorSnapshot,
2017 window: &mut Window,
2018 cx: &mut App,
2019 ) -> Vec<AnyElement> {
2020 self.editor.update(cx, |editor, cx| {
2021 let active_task_indicator_row =
2022 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2023 deployed_from_indicator,
2024 actions,
2025 ..
2026 })) = editor.context_menu.borrow().as_ref()
2027 {
2028 actions
2029 .tasks
2030 .as_ref()
2031 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2032 .or(*deployed_from_indicator)
2033 } else {
2034 None
2035 };
2036
2037 let offset_range_start =
2038 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2039
2040 let offset_range_end =
2041 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2042
2043 editor
2044 .tasks
2045 .iter()
2046 .filter_map(|(_, tasks)| {
2047 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2048 if multibuffer_point < offset_range_start
2049 || multibuffer_point > offset_range_end
2050 {
2051 return None;
2052 }
2053 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2054 let buffer_folded = snapshot
2055 .buffer_snapshot
2056 .buffer_line_for_row(multibuffer_row)
2057 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2058 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2059 .unwrap_or(false);
2060 if buffer_folded {
2061 return None;
2062 }
2063
2064 if snapshot.is_line_folded(multibuffer_row) {
2065 // Skip folded indicators, unless it's the starting line of a fold.
2066 if multibuffer_row
2067 .0
2068 .checked_sub(1)
2069 .map_or(false, |previous_row| {
2070 snapshot.is_line_folded(MultiBufferRow(previous_row))
2071 })
2072 {
2073 return None;
2074 }
2075 }
2076 let display_row = multibuffer_point.to_display_point(snapshot).row();
2077 let button = editor.render_run_indicator(
2078 &self.style,
2079 Some(display_row) == active_task_indicator_row,
2080 display_row,
2081 cx,
2082 );
2083
2084 let button = prepaint_gutter_button(
2085 button,
2086 display_row,
2087 line_height,
2088 gutter_dimensions,
2089 scroll_pixel_position,
2090 gutter_hitbox,
2091 display_hunks,
2092 window,
2093 cx,
2094 );
2095 Some(button)
2096 })
2097 .collect_vec()
2098 })
2099 }
2100
2101 fn layout_code_actions_indicator(
2102 &self,
2103 line_height: Pixels,
2104 newest_selection_head: DisplayPoint,
2105 scroll_pixel_position: gpui::Point<Pixels>,
2106 gutter_dimensions: &GutterDimensions,
2107 gutter_hitbox: &Hitbox,
2108 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2109 window: &mut Window,
2110 cx: &mut App,
2111 ) -> Option<AnyElement> {
2112 let mut active = false;
2113 let mut button = None;
2114 let row = newest_selection_head.row();
2115 self.editor.update(cx, |editor, cx| {
2116 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2117 deployed_from_indicator,
2118 ..
2119 })) = editor.context_menu.borrow().as_ref()
2120 {
2121 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2122 };
2123 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2124 });
2125
2126 let button = prepaint_gutter_button(
2127 button?,
2128 row,
2129 line_height,
2130 gutter_dimensions,
2131 scroll_pixel_position,
2132 gutter_hitbox,
2133 display_hunks,
2134 window,
2135 cx,
2136 );
2137
2138 Some(button)
2139 }
2140
2141 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2142 if let Some(index) = participant_index {
2143 cx.theme().players().color_for_participant(index.0)
2144 } else {
2145 cx.theme().players().absent()
2146 }
2147 }
2148
2149 fn calculate_relative_line_numbers(
2150 &self,
2151 snapshot: &EditorSnapshot,
2152 rows: &Range<DisplayRow>,
2153 relative_to: Option<DisplayRow>,
2154 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2155 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2156 let Some(relative_to) = relative_to else {
2157 return relative_rows;
2158 };
2159
2160 let start = rows.start.min(relative_to);
2161 let end = rows.end.max(relative_to);
2162
2163 let buffer_rows = snapshot
2164 .row_infos(start)
2165 .take(1 + end.minus(start) as usize)
2166 .collect::<Vec<_>>();
2167
2168 let head_idx = relative_to.minus(start);
2169 let mut delta = 1;
2170 let mut i = head_idx + 1;
2171 while i < buffer_rows.len() as u32 {
2172 if buffer_rows[i as usize].buffer_row.is_some() {
2173 if rows.contains(&DisplayRow(i + start.0)) {
2174 relative_rows.insert(DisplayRow(i + start.0), delta);
2175 }
2176 delta += 1;
2177 }
2178 i += 1;
2179 }
2180 delta = 1;
2181 i = head_idx.min(buffer_rows.len() as u32 - 1);
2182 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2183 i -= 1;
2184 }
2185
2186 while i > 0 {
2187 i -= 1;
2188 if buffer_rows[i as usize].buffer_row.is_some() {
2189 if rows.contains(&DisplayRow(i + start.0)) {
2190 relative_rows.insert(DisplayRow(i + start.0), delta);
2191 }
2192 delta += 1;
2193 }
2194 }
2195
2196 relative_rows
2197 }
2198
2199 fn layout_line_numbers(
2200 &self,
2201 gutter_hitbox: Option<&Hitbox>,
2202 gutter_dimensions: GutterDimensions,
2203 line_height: Pixels,
2204 scroll_position: gpui::Point<f32>,
2205 rows: Range<DisplayRow>,
2206 buffer_rows: &[RowInfo],
2207 newest_selection_head: Option<DisplayPoint>,
2208 snapshot: &EditorSnapshot,
2209 window: &mut Window,
2210 cx: &mut App,
2211 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2212 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2213 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2214 });
2215 if !include_line_numbers {
2216 return Arc::default();
2217 }
2218
2219 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2220 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2221 let newest = editor.selections.newest::<Point>(cx);
2222 SelectionLayout::new(
2223 newest,
2224 editor.selections.line_mode,
2225 editor.cursor_shape,
2226 &snapshot.display_snapshot,
2227 true,
2228 true,
2229 None,
2230 )
2231 .head
2232 });
2233 let is_relative = editor.should_use_relative_line_numbers(cx);
2234 (newest_selection_head, is_relative)
2235 });
2236
2237 let relative_to = if is_relative {
2238 Some(newest_selection_head.row())
2239 } else {
2240 None
2241 };
2242 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2243 let mut line_number = String::new();
2244 let line_numbers = buffer_rows
2245 .into_iter()
2246 .enumerate()
2247 .flat_map(|(ix, row_info)| {
2248 let display_row = DisplayRow(rows.start.0 + ix as u32);
2249 line_number.clear();
2250 let non_relative_number = row_info.buffer_row? + 1;
2251 let number = relative_rows
2252 .get(&display_row)
2253 .unwrap_or(&non_relative_number);
2254 write!(&mut line_number, "{number}").unwrap();
2255 if row_info
2256 .diff_status
2257 .is_some_and(|status| status.is_deleted())
2258 {
2259 return None;
2260 }
2261
2262 let color = cx.theme().colors().editor_line_number;
2263 let shaped_line = self
2264 .shape_line_number(SharedString::from(&line_number), color, window)
2265 .log_err()?;
2266 let scroll_top = scroll_position.y * line_height;
2267 let line_origin = gutter_hitbox.map(|hitbox| {
2268 hitbox.origin
2269 + point(
2270 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2271 ix as f32 * line_height - (scroll_top % line_height),
2272 )
2273 });
2274
2275 #[cfg(not(test))]
2276 let hitbox = line_origin.map(|line_origin| {
2277 window.insert_hitbox(
2278 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2279 false,
2280 )
2281 });
2282 #[cfg(test)]
2283 let hitbox = {
2284 let _ = line_origin;
2285 None
2286 };
2287
2288 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2289 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2290 let line_number = LineNumberLayout {
2291 shaped_line,
2292 hitbox,
2293 display_row,
2294 };
2295 Some((multi_buffer_row, line_number))
2296 })
2297 .collect();
2298 Arc::new(line_numbers)
2299 }
2300
2301 fn layout_crease_toggles(
2302 &self,
2303 rows: Range<DisplayRow>,
2304 row_infos: &[RowInfo],
2305 active_rows: &BTreeMap<DisplayRow, bool>,
2306 snapshot: &EditorSnapshot,
2307 window: &mut Window,
2308 cx: &mut App,
2309 ) -> Vec<Option<AnyElement>> {
2310 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2311 && snapshot.mode == EditorMode::Full
2312 && self.editor.read(cx).is_singleton(cx);
2313 if include_fold_statuses {
2314 row_infos
2315 .into_iter()
2316 .enumerate()
2317 .map(|(ix, info)| {
2318 let row = info.multibuffer_row?;
2319 let display_row = DisplayRow(rows.start.0 + ix as u32);
2320 let active = active_rows.contains_key(&display_row);
2321
2322 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2323 })
2324 .collect()
2325 } else {
2326 Vec::new()
2327 }
2328 }
2329
2330 fn layout_crease_trailers(
2331 &self,
2332 buffer_rows: impl IntoIterator<Item = RowInfo>,
2333 snapshot: &EditorSnapshot,
2334 window: &mut Window,
2335 cx: &mut App,
2336 ) -> Vec<Option<AnyElement>> {
2337 buffer_rows
2338 .into_iter()
2339 .map(|row_info| {
2340 if let Some(row) = row_info.multibuffer_row {
2341 snapshot.render_crease_trailer(row, window, cx)
2342 } else {
2343 None
2344 }
2345 })
2346 .collect()
2347 }
2348
2349 fn layout_lines(
2350 rows: Range<DisplayRow>,
2351 snapshot: &EditorSnapshot,
2352 style: &EditorStyle,
2353 editor_width: Pixels,
2354 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2355 window: &mut Window,
2356 cx: &mut App,
2357 ) -> Vec<LineWithInvisibles> {
2358 if rows.start >= rows.end {
2359 return Vec::new();
2360 }
2361
2362 // Show the placeholder when the editor is empty
2363 if snapshot.is_empty() {
2364 let font_size = style.text.font_size.to_pixels(window.rem_size());
2365 let placeholder_color = cx.theme().colors().text_placeholder;
2366 let placeholder_text = snapshot.placeholder_text();
2367
2368 let placeholder_lines = placeholder_text
2369 .as_ref()
2370 .map_or("", AsRef::as_ref)
2371 .split('\n')
2372 .skip(rows.start.0 as usize)
2373 .chain(iter::repeat(""))
2374 .take(rows.len());
2375 placeholder_lines
2376 .filter_map(move |line| {
2377 let run = TextRun {
2378 len: line.len(),
2379 font: style.text.font(),
2380 color: placeholder_color,
2381 background_color: None,
2382 underline: Default::default(),
2383 strikethrough: None,
2384 };
2385 window
2386 .text_system()
2387 .shape_line(line.to_string().into(), font_size, &[run])
2388 .log_err()
2389 })
2390 .map(|line| LineWithInvisibles {
2391 width: line.width,
2392 len: line.len,
2393 fragments: smallvec![LineFragment::Text(line)],
2394 invisibles: Vec::new(),
2395 font_size,
2396 })
2397 .collect()
2398 } else {
2399 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2400 LineWithInvisibles::from_chunks(
2401 chunks,
2402 &style,
2403 MAX_LINE_LEN,
2404 rows.len(),
2405 snapshot.mode,
2406 editor_width,
2407 is_row_soft_wrapped,
2408 window,
2409 cx,
2410 )
2411 }
2412 }
2413
2414 fn prepaint_lines(
2415 &self,
2416 start_row: DisplayRow,
2417 line_layouts: &mut [LineWithInvisibles],
2418 line_height: Pixels,
2419 scroll_pixel_position: gpui::Point<Pixels>,
2420 content_origin: gpui::Point<Pixels>,
2421 window: &mut Window,
2422 cx: &mut App,
2423 ) -> SmallVec<[AnyElement; 1]> {
2424 let mut line_elements = SmallVec::new();
2425 for (ix, line) in line_layouts.iter_mut().enumerate() {
2426 let row = start_row + DisplayRow(ix as u32);
2427 line.prepaint(
2428 line_height,
2429 scroll_pixel_position,
2430 row,
2431 content_origin,
2432 &mut line_elements,
2433 window,
2434 cx,
2435 );
2436 }
2437 line_elements
2438 }
2439
2440 fn render_block(
2441 &self,
2442 block: &Block,
2443 available_width: AvailableSpace,
2444 block_id: BlockId,
2445 block_row_start: DisplayRow,
2446 snapshot: &EditorSnapshot,
2447 text_x: Pixels,
2448 rows: &Range<DisplayRow>,
2449 line_layouts: &[LineWithInvisibles],
2450 gutter_dimensions: &GutterDimensions,
2451 line_height: Pixels,
2452 em_width: Pixels,
2453 text_hitbox: &Hitbox,
2454 editor_width: Pixels,
2455 scroll_width: &mut Pixels,
2456 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2457 selections: &[Selection<Point>],
2458 selected_buffer_ids: &Vec<BufferId>,
2459 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2460 sticky_header_excerpt_id: Option<ExcerptId>,
2461 window: &mut Window,
2462 cx: &mut App,
2463 ) -> (AnyElement, Size<Pixels>) {
2464 let mut element = match block {
2465 Block::Custom(block) => {
2466 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2467 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2468 let align_to = block_start.to_display_point(snapshot);
2469 let anchor_x = text_x
2470 + if rows.contains(&align_to.row()) {
2471 line_layouts[align_to.row().minus(rows.start) as usize]
2472 .x_for_index(align_to.column() as usize)
2473 } else {
2474 layout_line(
2475 align_to.row(),
2476 snapshot,
2477 &self.style,
2478 editor_width,
2479 is_row_soft_wrapped,
2480 window,
2481 cx,
2482 )
2483 .x_for_index(align_to.column() as usize)
2484 };
2485
2486 let selected = selections
2487 .binary_search_by(|selection| {
2488 if selection.end <= block_start {
2489 Ordering::Less
2490 } else if selection.start >= block_end {
2491 Ordering::Greater
2492 } else {
2493 Ordering::Equal
2494 }
2495 })
2496 .is_ok();
2497
2498 div()
2499 .size_full()
2500 .child(block.render(&mut BlockContext {
2501 window,
2502 app: cx,
2503 anchor_x,
2504 gutter_dimensions,
2505 line_height,
2506 em_width,
2507 block_id,
2508 selected,
2509 max_width: text_hitbox.size.width.max(*scroll_width),
2510 editor_style: &self.style,
2511 }))
2512 .into_any()
2513 }
2514
2515 Block::FoldedBuffer {
2516 first_excerpt,
2517 prev_excerpt,
2518 show_excerpt_controls,
2519 height,
2520 } => {
2521 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2522 let mut result = v_flex().id(block_id).w_full();
2523
2524 if let Some(prev_excerpt) = prev_excerpt {
2525 if *show_excerpt_controls {
2526 result = result.child(self.render_expand_excerpt_control(
2527 block_id,
2528 ExpandExcerptDirection::Down,
2529 prev_excerpt.id,
2530 gutter_dimensions,
2531 window,
2532 cx,
2533 ));
2534 }
2535 }
2536
2537 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2538 result
2539 .child(self.render_buffer_header(
2540 first_excerpt,
2541 true,
2542 selected,
2543 jump_data,
2544 window,
2545 cx,
2546 ))
2547 .into_any_element()
2548 }
2549
2550 Block::ExcerptBoundary {
2551 prev_excerpt,
2552 next_excerpt,
2553 show_excerpt_controls,
2554 height,
2555 starts_new_buffer,
2556 } => {
2557 let color = cx.theme().colors().clone();
2558 let mut result = v_flex().id(block_id).w_full();
2559
2560 if let Some(prev_excerpt) = prev_excerpt {
2561 if *show_excerpt_controls {
2562 result = result.child(self.render_expand_excerpt_control(
2563 block_id,
2564 ExpandExcerptDirection::Down,
2565 prev_excerpt.id,
2566 gutter_dimensions,
2567 window,
2568 cx,
2569 ));
2570 }
2571 }
2572
2573 if let Some(next_excerpt) = next_excerpt {
2574 let jump_data =
2575 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2576
2577 if *starts_new_buffer {
2578 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2579 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2580
2581 result = result.child(self.render_buffer_header(
2582 next_excerpt,
2583 false,
2584 selected,
2585 jump_data,
2586 window,
2587 cx,
2588 ));
2589 } else {
2590 result = result
2591 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2592 }
2593
2594 if *show_excerpt_controls {
2595 result = result.child(self.render_expand_excerpt_control(
2596 block_id,
2597 ExpandExcerptDirection::Up,
2598 next_excerpt.id,
2599 gutter_dimensions,
2600 window,
2601 cx,
2602 ));
2603 }
2604 } else {
2605 if *show_excerpt_controls {
2606 result = result.child(
2607 h_flex()
2608 .relative()
2609 .child(
2610 div()
2611 .top(px(0.))
2612 .absolute()
2613 .w_full()
2614 .h_px()
2615 .bg(color.border_variant),
2616 )
2617 .child(self.render_expand_excerpt_control(
2618 block_id,
2619 ExpandExcerptDirection::Up,
2620 next_excerpt.id,
2621 gutter_dimensions,
2622 window,
2623 cx,
2624 )),
2625 );
2626 }
2627 };
2628 }
2629
2630 result.into_any()
2631 }
2632 };
2633
2634 // Discover the element's content height, then round up to the nearest multiple of line height.
2635 let preliminary_size = element.layout_as_root(
2636 size(available_width, AvailableSpace::MinContent),
2637 window,
2638 cx,
2639 );
2640 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2641 let final_size = if preliminary_size.height == quantized_height {
2642 preliminary_size
2643 } else {
2644 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2645 };
2646
2647 if let BlockId::Custom(custom_block_id) = block_id {
2648 if block.height() > 0 {
2649 let element_height_in_lines =
2650 ((final_size.height / line_height).ceil() as u32).max(1);
2651 if element_height_in_lines != block.height() {
2652 resized_blocks.insert(custom_block_id, element_height_in_lines);
2653 }
2654 }
2655 }
2656
2657 (element, final_size)
2658 }
2659
2660 fn render_buffer_header(
2661 &self,
2662 for_excerpt: &ExcerptInfo,
2663 is_folded: bool,
2664 is_selected: bool,
2665 jump_data: JumpData,
2666 window: &mut Window,
2667 cx: &mut App,
2668 ) -> Div {
2669 let editor = self.editor.read(cx);
2670 let file_status = editor
2671 .buffer
2672 .read(cx)
2673 .all_diff_hunks_expanded()
2674 .then(|| {
2675 editor
2676 .project
2677 .as_ref()?
2678 .read(cx)
2679 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2680 })
2681 .flatten();
2682
2683 let include_root = editor
2684 .project
2685 .as_ref()
2686 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2687 .unwrap_or_default();
2688 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2689 let filename = path
2690 .as_ref()
2691 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2692 let parent_path = path.as_ref().and_then(|path| {
2693 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2694 });
2695 let focus_handle = editor.focus_handle(cx);
2696 let colors = cx.theme().colors();
2697
2698 div()
2699 .px_2()
2700 .pt_2()
2701 .w_full()
2702 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2703 .child(
2704 h_flex()
2705 .size_full()
2706 .gap_2()
2707 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2708 .pl_0p5()
2709 .pr_5()
2710 .rounded_sm()
2711 .shadow_md()
2712 .border_1()
2713 .map(|div| {
2714 let border_color = if is_selected
2715 && is_folded
2716 && focus_handle.contains_focused(window, cx)
2717 {
2718 colors.border_focused
2719 } else {
2720 colors.border
2721 };
2722 div.border_color(border_color)
2723 })
2724 .bg(colors.editor_subheader_background)
2725 .hover(|style| style.bg(colors.element_hover))
2726 .map(|header| {
2727 let editor = self.editor.clone();
2728 let buffer_id = for_excerpt.buffer_id;
2729 let toggle_chevron_icon =
2730 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2731 header.child(
2732 div()
2733 .hover(|style| style.bg(colors.element_selected))
2734 .rounded_xs()
2735 .child(
2736 ButtonLike::new("toggle-buffer-fold")
2737 .style(ui::ButtonStyle::Transparent)
2738 .size(ButtonSize::Large)
2739 .width(px(30.).into())
2740 .children(toggle_chevron_icon)
2741 .tooltip({
2742 let focus_handle = focus_handle.clone();
2743 move |window, cx| {
2744 Tooltip::for_action_in(
2745 "Toggle Excerpt Fold",
2746 &ToggleFold,
2747 &focus_handle,
2748 window,
2749 cx,
2750 )
2751 }
2752 })
2753 .on_click(move |_, _, cx| {
2754 if is_folded {
2755 editor.update(cx, |editor, cx| {
2756 editor.unfold_buffer(buffer_id, cx);
2757 });
2758 } else {
2759 editor.update(cx, |editor, cx| {
2760 editor.fold_buffer(buffer_id, cx);
2761 });
2762 }
2763 }),
2764 ),
2765 )
2766 })
2767 .children(
2768 editor
2769 .addons
2770 .values()
2771 .filter_map(|addon| {
2772 addon.render_buffer_header_controls(for_excerpt, window, cx)
2773 })
2774 .take(1),
2775 )
2776 .child(
2777 h_flex()
2778 .cursor_pointer()
2779 .id("path header block")
2780 .size_full()
2781 .justify_between()
2782 .child(
2783 h_flex()
2784 .gap_2()
2785 .child(
2786 Label::new(
2787 filename
2788 .map(SharedString::from)
2789 .unwrap_or_else(|| "untitled".into()),
2790 )
2791 .single_line()
2792 .when_some(
2793 file_status,
2794 |el, status| {
2795 el.color(if status.is_conflicted() {
2796 Color::Conflict
2797 } else if status.is_modified() {
2798 Color::Modified
2799 } else if status.is_deleted() {
2800 Color::Disabled
2801 } else {
2802 Color::Created
2803 })
2804 .when(status.is_deleted(), |el| el.strikethrough())
2805 },
2806 ),
2807 )
2808 .when_some(parent_path, |then, path| {
2809 then.child(div().child(path).text_color(
2810 if file_status.is_some_and(FileStatus::is_deleted) {
2811 colors.text_disabled
2812 } else {
2813 colors.text_muted
2814 },
2815 ))
2816 }),
2817 )
2818 .when(is_selected, |el| {
2819 el.child(
2820 h_flex()
2821 .id("jump-to-file-button")
2822 .gap_2p5()
2823 .child(Label::new("Jump To File"))
2824 .children(
2825 KeyBinding::for_action_in(
2826 &OpenExcerpts,
2827 &focus_handle,
2828 window,
2829 cx,
2830 )
2831 .map(|binding| binding.into_any_element()),
2832 ),
2833 )
2834 })
2835 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2836 .on_click(window.listener_for(&self.editor, {
2837 move |editor, e: &ClickEvent, window, cx| {
2838 editor.open_excerpts_common(
2839 Some(jump_data.clone()),
2840 e.down.modifiers.secondary(),
2841 window,
2842 cx,
2843 );
2844 }
2845 })),
2846 ),
2847 )
2848 }
2849
2850 fn render_expand_excerpt_control(
2851 &self,
2852 block_id: BlockId,
2853 direction: ExpandExcerptDirection,
2854 excerpt_id: ExcerptId,
2855 gutter_dimensions: &GutterDimensions,
2856 window: &Window,
2857 cx: &mut App,
2858 ) -> impl IntoElement {
2859 let color = cx.theme().colors().clone();
2860 let hover_color = color.border_variant.opacity(0.5);
2861 let focus_handle = self.editor.focus_handle(cx).clone();
2862
2863 let icon_offset =
2864 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2865 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2866 let group_name = if direction == ExpandExcerptDirection::Down {
2867 "expand-down"
2868 } else {
2869 "expand-up"
2870 };
2871
2872 let expand_area = |id: SharedString| {
2873 h_flex()
2874 .id(id)
2875 .w_full()
2876 .cursor_pointer()
2877 .block_mouse_down()
2878 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2879 .hover(|style| style.bg(hover_color))
2880 .tooltip({
2881 let focus_handle = focus_handle.clone();
2882 move |window, cx| {
2883 Tooltip::for_action_in(
2884 "Expand Excerpt",
2885 &ExpandExcerpts { lines: 0 },
2886 &focus_handle,
2887 window,
2888 cx,
2889 )
2890 }
2891 })
2892 };
2893
2894 expand_area(
2895 format!(
2896 "block-{}-{}",
2897 block_id,
2898 if direction == ExpandExcerptDirection::Down {
2899 "down"
2900 } else {
2901 "up"
2902 }
2903 )
2904 .into(),
2905 )
2906 .group(group_name)
2907 .child(
2908 h_flex()
2909 .w(icon_offset)
2910 .h(header_height)
2911 .flex_none()
2912 .justify_end()
2913 .child(
2914 ButtonLike::new("expand-icon")
2915 .style(ButtonStyle::Transparent)
2916 .child(
2917 svg()
2918 .path(if direction == ExpandExcerptDirection::Down {
2919 IconName::ArrowDownFromLine.path()
2920 } else {
2921 IconName::ArrowUpFromLine.path()
2922 })
2923 .size(IconSize::XSmall.rems())
2924 .text_color(cx.theme().colors().editor_line_number)
2925 .group_hover(group_name, |style| {
2926 style.text_color(cx.theme().colors().editor_active_line_number)
2927 }),
2928 ),
2929 ),
2930 )
2931 .on_click(window.listener_for(&self.editor, {
2932 move |editor, _, _, cx| {
2933 editor.expand_excerpt(excerpt_id, direction, cx);
2934 cx.stop_propagation();
2935 }
2936 }))
2937 }
2938
2939 fn render_blocks(
2940 &self,
2941 rows: Range<DisplayRow>,
2942 snapshot: &EditorSnapshot,
2943 hitbox: &Hitbox,
2944 text_hitbox: &Hitbox,
2945 editor_width: Pixels,
2946 scroll_width: &mut Pixels,
2947 gutter_dimensions: &GutterDimensions,
2948 em_width: Pixels,
2949 text_x: Pixels,
2950 line_height: Pixels,
2951 line_layouts: &[LineWithInvisibles],
2952 selections: &[Selection<Point>],
2953 selected_buffer_ids: &Vec<BufferId>,
2954 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2955 sticky_header_excerpt_id: Option<ExcerptId>,
2956 window: &mut Window,
2957 cx: &mut App,
2958 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2959 let (fixed_blocks, non_fixed_blocks) = snapshot
2960 .blocks_in_range(rows.clone())
2961 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2962
2963 let mut focused_block = self
2964 .editor
2965 .update(cx, |editor, _| editor.take_focused_block());
2966 let mut fixed_block_max_width = Pixels::ZERO;
2967 let mut blocks = Vec::new();
2968 let mut resized_blocks = HashMap::default();
2969
2970 for (row, block) in fixed_blocks {
2971 let block_id = block.id();
2972
2973 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2974 focused_block = None;
2975 }
2976
2977 let (element, element_size) = self.render_block(
2978 block,
2979 AvailableSpace::MinContent,
2980 block_id,
2981 row,
2982 snapshot,
2983 text_x,
2984 &rows,
2985 line_layouts,
2986 gutter_dimensions,
2987 line_height,
2988 em_width,
2989 text_hitbox,
2990 editor_width,
2991 scroll_width,
2992 &mut resized_blocks,
2993 selections,
2994 selected_buffer_ids,
2995 is_row_soft_wrapped,
2996 sticky_header_excerpt_id,
2997 window,
2998 cx,
2999 );
3000 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3001 blocks.push(BlockLayout {
3002 id: block_id,
3003 row: Some(row),
3004 element,
3005 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3006 style: BlockStyle::Fixed,
3007 });
3008 }
3009
3010 for (row, block) in non_fixed_blocks {
3011 let style = block.style();
3012 let width = match style {
3013 BlockStyle::Sticky => hitbox.size.width,
3014 BlockStyle::Flex => hitbox
3015 .size
3016 .width
3017 .max(fixed_block_max_width)
3018 .max(gutter_dimensions.width + *scroll_width),
3019 BlockStyle::Fixed => unreachable!(),
3020 };
3021 let block_id = block.id();
3022
3023 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3024 focused_block = None;
3025 }
3026
3027 let (element, element_size) = self.render_block(
3028 block,
3029 width.into(),
3030 block_id,
3031 row,
3032 snapshot,
3033 text_x,
3034 &rows,
3035 line_layouts,
3036 gutter_dimensions,
3037 line_height,
3038 em_width,
3039 text_hitbox,
3040 editor_width,
3041 scroll_width,
3042 &mut resized_blocks,
3043 selections,
3044 selected_buffer_ids,
3045 is_row_soft_wrapped,
3046 sticky_header_excerpt_id,
3047 window,
3048 cx,
3049 );
3050
3051 blocks.push(BlockLayout {
3052 id: block_id,
3053 row: Some(row),
3054 element,
3055 available_space: size(width.into(), element_size.height.into()),
3056 style,
3057 });
3058 }
3059
3060 if let Some(focused_block) = focused_block {
3061 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3062 if focus_handle.is_focused(window) {
3063 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3064 let style = block.style();
3065 let width = match style {
3066 BlockStyle::Fixed => AvailableSpace::MinContent,
3067 BlockStyle::Flex => AvailableSpace::Definite(
3068 hitbox
3069 .size
3070 .width
3071 .max(fixed_block_max_width)
3072 .max(gutter_dimensions.width + *scroll_width),
3073 ),
3074 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3075 };
3076
3077 let (element, element_size) = self.render_block(
3078 &block,
3079 width,
3080 focused_block.id,
3081 rows.end,
3082 snapshot,
3083 text_x,
3084 &rows,
3085 line_layouts,
3086 gutter_dimensions,
3087 line_height,
3088 em_width,
3089 text_hitbox,
3090 editor_width,
3091 scroll_width,
3092 &mut resized_blocks,
3093 selections,
3094 selected_buffer_ids,
3095 is_row_soft_wrapped,
3096 sticky_header_excerpt_id,
3097 window,
3098 cx,
3099 );
3100
3101 blocks.push(BlockLayout {
3102 id: block.id(),
3103 row: None,
3104 element,
3105 available_space: size(width, element_size.height.into()),
3106 style,
3107 });
3108 }
3109 }
3110 }
3111 }
3112
3113 if resized_blocks.is_empty() {
3114 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3115 Ok(blocks)
3116 } else {
3117 Err(resized_blocks)
3118 }
3119 }
3120
3121 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3122 /// a restart of rendering for the editor based on the new sizes.
3123 fn layout_blocks(
3124 &self,
3125 blocks: &mut Vec<BlockLayout>,
3126 block_starts: &mut HashSet<DisplayRow>,
3127 hitbox: &Hitbox,
3128 line_height: Pixels,
3129 scroll_pixel_position: gpui::Point<Pixels>,
3130 window: &mut Window,
3131 cx: &mut App,
3132 ) {
3133 for block in blocks {
3134 let mut origin = if let Some(row) = block.row {
3135 block_starts.insert(row);
3136 hitbox.origin
3137 + point(
3138 Pixels::ZERO,
3139 row.as_f32() * line_height - scroll_pixel_position.y,
3140 )
3141 } else {
3142 // Position the block outside the visible area
3143 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3144 };
3145
3146 if !matches!(block.style, BlockStyle::Sticky) {
3147 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3148 }
3149
3150 let focus_handle =
3151 block
3152 .element
3153 .prepaint_as_root(origin, block.available_space, window, cx);
3154
3155 if let Some(focus_handle) = focus_handle {
3156 self.editor.update(cx, |editor, _cx| {
3157 editor.set_focused_block(FocusedBlock {
3158 id: block.id,
3159 focus_handle: focus_handle.downgrade(),
3160 });
3161 });
3162 }
3163 }
3164 }
3165
3166 fn layout_sticky_buffer_header(
3167 &self,
3168 StickyHeaderExcerpt {
3169 excerpt,
3170 next_excerpt_controls_present,
3171 next_buffer_row,
3172 }: StickyHeaderExcerpt<'_>,
3173 scroll_position: f32,
3174 line_height: Pixels,
3175 snapshot: &EditorSnapshot,
3176 hitbox: &Hitbox,
3177 selected_buffer_ids: &Vec<BufferId>,
3178 window: &mut Window,
3179 cx: &mut App,
3180 ) -> AnyElement {
3181 let jump_data = header_jump_data(
3182 snapshot,
3183 DisplayRow(scroll_position as u32),
3184 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3185 excerpt,
3186 );
3187
3188 let editor_bg_color = cx.theme().colors().editor_background;
3189
3190 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3191
3192 let mut header = v_flex()
3193 .relative()
3194 .child(
3195 div()
3196 .w(hitbox.bounds.size.width)
3197 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3198 .bg(linear_gradient(
3199 0.,
3200 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3201 linear_color_stop(editor_bg_color, 0.6),
3202 ))
3203 .absolute()
3204 .top_0(),
3205 )
3206 .child(
3207 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3208 .into_any_element(),
3209 )
3210 .into_any_element();
3211
3212 let mut origin = hitbox.origin;
3213
3214 if let Some(next_buffer_row) = next_buffer_row {
3215 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3216
3217 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3218
3219 if next_excerpt_controls_present {
3220 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3221 }
3222
3223 let offset = scroll_position - max_row as f32;
3224
3225 if offset > 0.0 {
3226 origin.y -= Pixels(offset) * line_height;
3227 }
3228 }
3229
3230 let size = size(
3231 AvailableSpace::Definite(hitbox.size.width),
3232 AvailableSpace::MinContent,
3233 );
3234
3235 header.prepaint_as_root(origin, size, window, cx);
3236
3237 header
3238 }
3239
3240 fn layout_cursor_popovers(
3241 &self,
3242 line_height: Pixels,
3243 text_hitbox: &Hitbox,
3244 content_origin: gpui::Point<Pixels>,
3245 start_row: DisplayRow,
3246 scroll_pixel_position: gpui::Point<Pixels>,
3247 line_layouts: &[LineWithInvisibles],
3248 cursor: DisplayPoint,
3249 cursor_point: Point,
3250 style: &EditorStyle,
3251 window: &mut Window,
3252 cx: &mut App,
3253 ) {
3254 let mut min_menu_height = Pixels::ZERO;
3255 let mut max_menu_height = Pixels::ZERO;
3256 let mut height_above_menu = Pixels::ZERO;
3257 let height_below_menu = Pixels::ZERO;
3258 let mut edit_prediction_popover_visible = false;
3259 let mut context_menu_visible = false;
3260
3261 {
3262 let editor = self.editor.read(cx);
3263 if editor
3264 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3265 {
3266 height_above_menu +=
3267 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3268 edit_prediction_popover_visible = true;
3269 }
3270
3271 if editor.context_menu_visible() {
3272 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3273 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3274 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3275 context_menu_visible = true;
3276 }
3277 }
3278 }
3279
3280 let visible = edit_prediction_popover_visible || context_menu_visible;
3281 if !visible {
3282 return;
3283 }
3284
3285 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3286 let target_position = content_origin
3287 + gpui::Point {
3288 x: cmp::max(
3289 px(0.),
3290 cursor_row_layout.x_for_index(cursor.column() as usize)
3291 - scroll_pixel_position.x,
3292 ),
3293 y: cmp::max(
3294 px(0.),
3295 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3296 ),
3297 };
3298
3299 let viewport_bounds =
3300 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3301 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3302 ..Default::default()
3303 });
3304
3305 let min_height = height_above_menu + min_menu_height + height_below_menu;
3306 let max_height = height_above_menu + max_menu_height + height_below_menu;
3307 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3308 target_position,
3309 line_height,
3310 min_height,
3311 max_height,
3312 text_hitbox,
3313 viewport_bounds,
3314 window,
3315 cx,
3316 |height, max_width_for_stable_x, y_flipped, window, cx| {
3317 // First layout the menu to get its size - others can be at least this wide.
3318 let context_menu = if context_menu_visible {
3319 let menu_height = if y_flipped {
3320 height - height_below_menu
3321 } else {
3322 height - height_above_menu
3323 };
3324 let mut element = self
3325 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3326 .expect("Visible context menu should always render.");
3327 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3328 Some((CursorPopoverType::CodeContextMenu, element, size))
3329 } else {
3330 None
3331 };
3332 let min_width = context_menu
3333 .as_ref()
3334 .map_or(px(0.), |(_, _, size)| size.width);
3335 let max_width = max_width_for_stable_x.max(
3336 context_menu
3337 .as_ref()
3338 .map_or(px(0.), |(_, _, size)| size.width),
3339 );
3340
3341 let edit_prediction = if edit_prediction_popover_visible {
3342 self.editor.update(cx, move |editor, cx| {
3343 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3344 let mut element = editor.render_edit_prediction_cursor_popover(
3345 min_width,
3346 max_width,
3347 cursor_point,
3348 style,
3349 accept_binding.keystroke(),
3350 window,
3351 cx,
3352 )?;
3353 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3354 Some((CursorPopoverType::EditPrediction, element, size))
3355 })
3356 } else {
3357 None
3358 };
3359 vec![edit_prediction, context_menu]
3360 .into_iter()
3361 .flatten()
3362 .collect::<Vec<_>>()
3363 },
3364 ) else {
3365 return;
3366 };
3367
3368 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3369 .iter()
3370 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3371 else {
3372 return;
3373 };
3374 let last_ix = laid_out_popovers.len() - 1;
3375 let menu_is_last = menu_ix == last_ix;
3376 let first_popover_bounds = laid_out_popovers[0].1;
3377 let last_popover_bounds = laid_out_popovers[last_ix].1;
3378
3379 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3380 // right, and otherwise it goes below or to the right.
3381 let mut target_bounds = Bounds::from_corners(
3382 first_popover_bounds.origin,
3383 last_popover_bounds.bottom_right(),
3384 );
3385 target_bounds.size.width = menu_bounds.size.width;
3386
3387 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3388 // based on this is preferred for layout stability.
3389 let mut max_target_bounds = target_bounds;
3390 max_target_bounds.size.height = max_height;
3391 if y_flipped {
3392 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3393 }
3394
3395 // Add spacing around `target_bounds` and `max_target_bounds`.
3396 let mut extend_amount = Edges::all(MENU_GAP);
3397 if y_flipped {
3398 extend_amount.bottom = line_height;
3399 } else {
3400 extend_amount.top = line_height;
3401 }
3402 let target_bounds = target_bounds.extend(extend_amount);
3403 let max_target_bounds = max_target_bounds.extend(extend_amount);
3404
3405 let must_place_above_or_below =
3406 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3407 laid_out_popovers[menu_ix + 1..]
3408 .iter()
3409 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3410 } else {
3411 false
3412 };
3413
3414 self.layout_context_menu_aside(
3415 y_flipped,
3416 *menu_bounds,
3417 target_bounds,
3418 max_target_bounds,
3419 max_menu_height,
3420 must_place_above_or_below,
3421 text_hitbox,
3422 viewport_bounds,
3423 window,
3424 cx,
3425 );
3426 }
3427
3428 fn layout_gutter_menu(
3429 &self,
3430 line_height: Pixels,
3431 text_hitbox: &Hitbox,
3432 content_origin: gpui::Point<Pixels>,
3433 scroll_pixel_position: gpui::Point<Pixels>,
3434 gutter_overshoot: Pixels,
3435 window: &mut Window,
3436 cx: &mut App,
3437 ) {
3438 let editor = self.editor.read(cx);
3439 if !editor.context_menu_visible() {
3440 return;
3441 }
3442 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3443 editor.context_menu_origin()
3444 else {
3445 return;
3446 };
3447 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3448 // indicator than just a plain first column of the text field.
3449 let target_position = content_origin
3450 + gpui::Point {
3451 x: -gutter_overshoot,
3452 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3453 };
3454 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3455 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3456 let viewport_bounds =
3457 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3458 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3459 ..Default::default()
3460 });
3461 self.layout_popovers_above_or_below_line(
3462 target_position,
3463 line_height,
3464 min_height,
3465 max_height,
3466 text_hitbox,
3467 viewport_bounds,
3468 window,
3469 cx,
3470 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3471 let mut element = self
3472 .render_context_menu(line_height, height, y_flipped, window, cx)
3473 .expect("Visible context menu should always render.");
3474 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3475 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3476 },
3477 );
3478 }
3479
3480 fn layout_popovers_above_or_below_line(
3481 &self,
3482 target_position: gpui::Point<Pixels>,
3483 line_height: Pixels,
3484 min_height: Pixels,
3485 max_height: Pixels,
3486 text_hitbox: &Hitbox,
3487 viewport_bounds: Bounds<Pixels>,
3488 window: &mut Window,
3489 cx: &mut App,
3490 make_sized_popovers: impl FnOnce(
3491 Pixels,
3492 Pixels,
3493 bool,
3494 &mut Window,
3495 &mut App,
3496 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3497 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3498 let text_style = TextStyleRefinement {
3499 line_height: Some(DefiniteLength::Fraction(
3500 BufferLineHeight::Comfortable.value(),
3501 )),
3502 ..Default::default()
3503 };
3504 window.with_text_style(Some(text_style), |window| {
3505 // If the max height won't fit below and there is more space above, put it above the line.
3506 let bottom_y_when_flipped = target_position.y - line_height;
3507 let available_above = bottom_y_when_flipped - text_hitbox.top();
3508 let available_below = text_hitbox.bottom() - target_position.y;
3509 let y_overflows_below = max_height > available_below;
3510 let mut y_flipped = y_overflows_below && available_above > available_below;
3511 let mut height = cmp::min(
3512 max_height,
3513 if y_flipped {
3514 available_above
3515 } else {
3516 available_below
3517 },
3518 );
3519
3520 // If the min height doesn't fit within text bounds, instead fit within the window.
3521 if height < min_height {
3522 let available_above = bottom_y_when_flipped;
3523 let available_below = viewport_bounds.bottom() - target_position.y;
3524 if available_below > min_height {
3525 y_flipped = false;
3526 height = min_height;
3527 } else if available_above > min_height {
3528 y_flipped = true;
3529 height = min_height;
3530 } else if available_above > available_below {
3531 y_flipped = true;
3532 height = available_above;
3533 } else {
3534 y_flipped = false;
3535 height = available_below;
3536 }
3537 }
3538
3539 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3540
3541 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3542 // for very narrow windows.
3543 let popovers =
3544 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3545 if popovers.is_empty() {
3546 return None;
3547 }
3548
3549 let max_width = popovers
3550 .iter()
3551 .map(|(_, _, size)| size.width)
3552 .max()
3553 .unwrap_or_default();
3554
3555 let mut current_position = gpui::Point {
3556 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3557 // overflow. Include space for the scrollbar.
3558 x: target_position
3559 .x
3560 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3561 y: if y_flipped {
3562 bottom_y_when_flipped
3563 } else {
3564 target_position.y
3565 },
3566 };
3567
3568 let mut laid_out_popovers = popovers
3569 .into_iter()
3570 .map(|(popover_type, element, size)| {
3571 if y_flipped {
3572 current_position.y -= size.height;
3573 }
3574 let position = current_position;
3575 window.defer_draw(element, current_position, 1);
3576 if !y_flipped {
3577 current_position.y += size.height + MENU_GAP;
3578 } else {
3579 current_position.y -= MENU_GAP;
3580 }
3581 (popover_type, Bounds::new(position, size))
3582 })
3583 .collect::<Vec<_>>();
3584
3585 if y_flipped {
3586 laid_out_popovers.reverse();
3587 }
3588
3589 Some((laid_out_popovers, y_flipped))
3590 })
3591 }
3592
3593 fn layout_context_menu_aside(
3594 &self,
3595 y_flipped: bool,
3596 menu_bounds: Bounds<Pixels>,
3597 target_bounds: Bounds<Pixels>,
3598 max_target_bounds: Bounds<Pixels>,
3599 max_height: Pixels,
3600 must_place_above_or_below: bool,
3601 text_hitbox: &Hitbox,
3602 viewport_bounds: Bounds<Pixels>,
3603 window: &mut Window,
3604 cx: &mut App,
3605 ) {
3606 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3607 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3608 && !must_place_above_or_below
3609 {
3610 let max_width = cmp::min(
3611 available_within_viewport.right - px(1.),
3612 MENU_ASIDE_MAX_WIDTH,
3613 );
3614 let Some(mut aside) = self.render_context_menu_aside(
3615 size(max_width, max_height - POPOVER_Y_PADDING),
3616 window,
3617 cx,
3618 ) else {
3619 return;
3620 };
3621 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3622 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3623 Some((aside, right_position))
3624 } else {
3625 let max_size = size(
3626 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3627 // won't be needed here.
3628 cmp::min(
3629 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3630 viewport_bounds.right(),
3631 ),
3632 cmp::min(
3633 max_height,
3634 cmp::max(
3635 available_within_viewport.top,
3636 available_within_viewport.bottom,
3637 ),
3638 ) - POPOVER_Y_PADDING,
3639 );
3640 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3641 return;
3642 };
3643 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3644
3645 let top_position = point(
3646 menu_bounds.origin.x,
3647 target_bounds.top() - actual_size.height,
3648 );
3649 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3650
3651 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3652 // Prefer to fit on the same side of the line as the menu, then on the other side of
3653 // the line.
3654 if !y_flipped && wanted.height < available.bottom {
3655 Some(bottom_position)
3656 } else if !y_flipped && wanted.height < available.top {
3657 Some(top_position)
3658 } else if y_flipped && wanted.height < available.top {
3659 Some(top_position)
3660 } else if y_flipped && wanted.height < available.bottom {
3661 Some(bottom_position)
3662 } else {
3663 None
3664 }
3665 };
3666
3667 // Prefer choosing a direction using max sizes rather than actual size for stability.
3668 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3669 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3670 let aside_position = fit_within(available_within_text, wanted)
3671 // Fallback: fit max size in window.
3672 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3673 // Fallback: fit actual size in window.
3674 .or_else(|| fit_within(available_within_viewport, actual_size));
3675
3676 aside_position.map(|position| (aside, position))
3677 };
3678
3679 // Skip drawing if it doesn't fit anywhere.
3680 if let Some((aside, position)) = positioned_aside {
3681 window.defer_draw(aside, position, 2);
3682 }
3683 }
3684
3685 fn render_context_menu(
3686 &self,
3687 line_height: Pixels,
3688 height: Pixels,
3689 y_flipped: bool,
3690 window: &mut Window,
3691 cx: &mut App,
3692 ) -> Option<AnyElement> {
3693 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3694 self.editor.update(cx, |editor, cx| {
3695 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3696 })
3697 }
3698
3699 fn render_context_menu_aside(
3700 &self,
3701 max_size: Size<Pixels>,
3702 window: &mut Window,
3703 cx: &mut App,
3704 ) -> Option<AnyElement> {
3705 if max_size.width < px(100.) || max_size.height < px(12.) {
3706 None
3707 } else {
3708 self.editor.update(cx, |editor, cx| {
3709 editor.render_context_menu_aside(max_size, window, cx)
3710 })
3711 }
3712 }
3713
3714 fn layout_mouse_context_menu(
3715 &self,
3716 editor_snapshot: &EditorSnapshot,
3717 visible_range: Range<DisplayRow>,
3718 content_origin: gpui::Point<Pixels>,
3719 window: &mut Window,
3720 cx: &mut App,
3721 ) -> Option<AnyElement> {
3722 let position = self.editor.update(cx, |editor, _cx| {
3723 let visible_start_point = editor.display_to_pixel_point(
3724 DisplayPoint::new(visible_range.start, 0),
3725 editor_snapshot,
3726 window,
3727 )?;
3728 let visible_end_point = editor.display_to_pixel_point(
3729 DisplayPoint::new(visible_range.end, 0),
3730 editor_snapshot,
3731 window,
3732 )?;
3733
3734 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3735 let (source_display_point, position) = match mouse_context_menu.position {
3736 MenuPosition::PinnedToScreen(point) => (None, point),
3737 MenuPosition::PinnedToEditor { source, offset } => {
3738 let source_display_point = source.to_display_point(editor_snapshot);
3739 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3740 let position = content_origin + source_point + offset;
3741 (Some(source_display_point), position)
3742 }
3743 };
3744
3745 let source_included = source_display_point.map_or(true, |source_display_point| {
3746 visible_range
3747 .to_inclusive()
3748 .contains(&source_display_point.row())
3749 });
3750 let position_included =
3751 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3752 if !source_included && !position_included {
3753 None
3754 } else {
3755 Some(position)
3756 }
3757 })?;
3758
3759 let text_style = TextStyleRefinement {
3760 line_height: Some(DefiniteLength::Fraction(
3761 BufferLineHeight::Comfortable.value(),
3762 )),
3763 ..Default::default()
3764 };
3765 window.with_text_style(Some(text_style), |window| {
3766 let mut element = self.editor.update(cx, |editor, _| {
3767 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3768 let context_menu = mouse_context_menu.context_menu.clone();
3769
3770 Some(
3771 deferred(
3772 anchored()
3773 .position(position)
3774 .child(context_menu)
3775 .anchor(Corner::TopLeft)
3776 .snap_to_window_with_margin(px(8.)),
3777 )
3778 .with_priority(1)
3779 .into_any(),
3780 )
3781 })?;
3782
3783 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3784 Some(element)
3785 })
3786 }
3787
3788 fn layout_hover_popovers(
3789 &self,
3790 snapshot: &EditorSnapshot,
3791 hitbox: &Hitbox,
3792 text_hitbox: &Hitbox,
3793 visible_display_row_range: Range<DisplayRow>,
3794 content_origin: gpui::Point<Pixels>,
3795 scroll_pixel_position: gpui::Point<Pixels>,
3796 line_layouts: &[LineWithInvisibles],
3797 line_height: Pixels,
3798 em_width: Pixels,
3799 window: &mut Window,
3800 cx: &mut App,
3801 ) {
3802 struct MeasuredHoverPopover {
3803 element: AnyElement,
3804 size: Size<Pixels>,
3805 horizontal_offset: Pixels,
3806 }
3807
3808 let max_size = size(
3809 (120. * em_width) // Default size
3810 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3811 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3812 (16. * line_height) // Default size
3813 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3814 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3815 );
3816
3817 let hover_popovers = self.editor.update(cx, |editor, cx| {
3818 editor
3819 .hover_state
3820 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3821 });
3822 let Some((position, hover_popovers)) = hover_popovers else {
3823 return;
3824 };
3825
3826 // This is safe because we check on layout whether the required row is available
3827 let hovered_row_layout =
3828 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3829
3830 // Compute Hovered Point
3831 let x =
3832 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3833 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3834 let hovered_point = content_origin + point(x, y);
3835
3836 let mut overall_height = Pixels::ZERO;
3837 let mut measured_hover_popovers = Vec::new();
3838 for mut hover_popover in hover_popovers {
3839 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3840 let horizontal_offset =
3841 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3842
3843 overall_height += HOVER_POPOVER_GAP + size.height;
3844
3845 measured_hover_popovers.push(MeasuredHoverPopover {
3846 element: hover_popover,
3847 size,
3848 horizontal_offset,
3849 });
3850 }
3851 overall_height += HOVER_POPOVER_GAP;
3852
3853 fn draw_occluder(
3854 width: Pixels,
3855 origin: gpui::Point<Pixels>,
3856 window: &mut Window,
3857 cx: &mut App,
3858 ) {
3859 let mut occlusion = div()
3860 .size_full()
3861 .occlude()
3862 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3863 .into_any_element();
3864 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3865 window.defer_draw(occlusion, origin, 2);
3866 }
3867
3868 if hovered_point.y > overall_height {
3869 // There is enough space above. Render popovers above the hovered point
3870 let mut current_y = hovered_point.y;
3871 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3872 let size = popover.size;
3873 let popover_origin = point(
3874 hovered_point.x + popover.horizontal_offset,
3875 current_y - size.height,
3876 );
3877
3878 window.defer_draw(popover.element, popover_origin, 2);
3879 if position != itertools::Position::Last {
3880 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3881 draw_occluder(size.width, origin, window, cx);
3882 }
3883
3884 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3885 }
3886 } else {
3887 // There is not enough space above. Render popovers below the hovered point
3888 let mut current_y = hovered_point.y + line_height;
3889 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3890 let size = popover.size;
3891 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3892
3893 window.defer_draw(popover.element, popover_origin, 2);
3894 if position != itertools::Position::Last {
3895 let origin = point(popover_origin.x, popover_origin.y + size.height);
3896 draw_occluder(size.width, origin, window, cx);
3897 }
3898
3899 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3900 }
3901 }
3902 }
3903
3904 fn layout_diff_hunk_controls(
3905 &self,
3906 row_range: Range<DisplayRow>,
3907 row_infos: &[RowInfo],
3908 text_hitbox: &Hitbox,
3909 position_map: &PositionMap,
3910 newest_cursor_position: Option<DisplayPoint>,
3911 line_height: Pixels,
3912 scroll_pixel_position: gpui::Point<Pixels>,
3913 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3914 editor: Entity<Editor>,
3915 window: &mut Window,
3916 cx: &mut App,
3917 ) -> Vec<AnyElement> {
3918 let point_for_position = position_map.point_for_position(window.mouse_position());
3919
3920 let mut controls = vec![];
3921
3922 let active_positions = [
3923 Some(point_for_position.previous_valid),
3924 newest_cursor_position,
3925 ];
3926
3927 for (hunk, _) in display_hunks {
3928 if let DisplayDiffHunk::Unfolded {
3929 display_row_range,
3930 multi_buffer_range,
3931 status,
3932 is_created_file,
3933 ..
3934 } = &hunk
3935 {
3936 if display_row_range.start < row_range.start
3937 || display_row_range.start >= row_range.end
3938 {
3939 continue;
3940 }
3941 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3942 if row_infos[row_ix].diff_status.is_none() {
3943 continue;
3944 }
3945 if row_infos[row_ix]
3946 .diff_status
3947 .is_some_and(|status| status.is_added())
3948 && !status.is_added()
3949 {
3950 continue;
3951 }
3952 if active_positions
3953 .iter()
3954 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3955 {
3956 let y = display_row_range.start.as_f32() * line_height
3957 + text_hitbox.bounds.top()
3958 - scroll_pixel_position.y;
3959
3960 let mut element = diff_hunk_controls(
3961 display_row_range.start.0,
3962 status,
3963 multi_buffer_range.clone(),
3964 *is_created_file,
3965 line_height,
3966 &editor,
3967 cx,
3968 );
3969 let size =
3970 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3971
3972 let x = text_hitbox.bounds.right()
3973 - self.style.scrollbar_width
3974 - px(10.)
3975 - size.width;
3976
3977 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3978 element.prepaint(window, cx)
3979 });
3980 controls.push(element);
3981 }
3982 }
3983 }
3984
3985 controls
3986 }
3987
3988 fn layout_signature_help(
3989 &self,
3990 hitbox: &Hitbox,
3991 content_origin: gpui::Point<Pixels>,
3992 scroll_pixel_position: gpui::Point<Pixels>,
3993 newest_selection_head: Option<DisplayPoint>,
3994 start_row: DisplayRow,
3995 line_layouts: &[LineWithInvisibles],
3996 line_height: Pixels,
3997 em_width: Pixels,
3998 window: &mut Window,
3999 cx: &mut App,
4000 ) {
4001 if !self.editor.focus_handle(cx).is_focused(window) {
4002 return;
4003 }
4004 let Some(newest_selection_head) = newest_selection_head else {
4005 return;
4006 };
4007 let selection_row = newest_selection_head.row();
4008 if selection_row < start_row {
4009 return;
4010 }
4011 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4012 else {
4013 return;
4014 };
4015
4016 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4017 - scroll_pixel_position.x
4018 + content_origin.x;
4019 let start_y =
4020 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4021
4022 let max_size = size(
4023 (120. * em_width) // Default size
4024 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4025 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4026 (16. * line_height) // Default size
4027 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4028 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4029 );
4030
4031 let maybe_element = self.editor.update(cx, |editor, cx| {
4032 if let Some(popover) = editor.signature_help_state.popover_mut() {
4033 let element = popover.render(max_size, cx);
4034 Some(element)
4035 } else {
4036 None
4037 }
4038 });
4039 if let Some(mut element) = maybe_element {
4040 let window_size = window.viewport_size();
4041 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4042 let mut point = point(start_x, start_y - size.height);
4043
4044 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4045 if point.x + size.width >= window_size.width {
4046 point.x = window_size.width - size.width;
4047 }
4048
4049 window.defer_draw(element, point, 1)
4050 }
4051 }
4052
4053 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4054 window.paint_layer(layout.hitbox.bounds, |window| {
4055 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4056 let gutter_bg = cx.theme().colors().editor_gutter_background;
4057 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4058 window.paint_quad(fill(
4059 layout.position_map.text_hitbox.bounds,
4060 self.style.background,
4061 ));
4062
4063 if let EditorMode::Full = layout.mode {
4064 let mut active_rows = layout.active_rows.iter().peekable();
4065 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4066 let mut end_row = start_row.0;
4067 while active_rows
4068 .peek()
4069 .map_or(false, |(active_row, has_selection)| {
4070 active_row.0 == end_row + 1
4071 && *has_selection == contains_non_empty_selection
4072 })
4073 {
4074 active_rows.next().unwrap();
4075 end_row += 1;
4076 }
4077
4078 if !contains_non_empty_selection {
4079 let highlight_h_range =
4080 match layout.position_map.snapshot.current_line_highlight {
4081 CurrentLineHighlight::Gutter => Some(Range {
4082 start: layout.hitbox.left(),
4083 end: layout.gutter_hitbox.right(),
4084 }),
4085 CurrentLineHighlight::Line => Some(Range {
4086 start: layout.position_map.text_hitbox.bounds.left(),
4087 end: layout.position_map.text_hitbox.bounds.right(),
4088 }),
4089 CurrentLineHighlight::All => Some(Range {
4090 start: layout.hitbox.left(),
4091 end: layout.hitbox.right(),
4092 }),
4093 CurrentLineHighlight::None => None,
4094 };
4095 if let Some(range) = highlight_h_range {
4096 let active_line_bg = cx.theme().colors().editor_active_line_background;
4097 let bounds = Bounds {
4098 origin: point(
4099 range.start,
4100 layout.hitbox.origin.y
4101 + (start_row.as_f32() - scroll_top)
4102 * layout.position_map.line_height,
4103 ),
4104 size: size(
4105 range.end - range.start,
4106 layout.position_map.line_height
4107 * (end_row - start_row.0 + 1) as f32,
4108 ),
4109 };
4110 window.paint_quad(fill(bounds, active_line_bg));
4111 }
4112 }
4113 }
4114
4115 let mut paint_highlight = |highlight_row_start: DisplayRow,
4116 highlight_row_end: DisplayRow,
4117 highlight: crate::LineHighlight,
4118 edges| {
4119 let origin = point(
4120 layout.hitbox.origin.x,
4121 layout.hitbox.origin.y
4122 + (highlight_row_start.as_f32() - scroll_top)
4123 * layout.position_map.line_height,
4124 );
4125 let size = size(
4126 layout.hitbox.size.width,
4127 layout.position_map.line_height
4128 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4129 );
4130 let mut quad = fill(Bounds { origin, size }, highlight.background);
4131 if let Some(border_color) = highlight.border {
4132 quad.border_color = border_color;
4133 quad.border_widths = edges
4134 }
4135 window.paint_quad(quad);
4136 };
4137
4138 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4139 None;
4140 for (&new_row, &new_background) in &layout.highlighted_rows {
4141 match &mut current_paint {
4142 Some((current_background, current_range, mut edges)) => {
4143 let current_background = *current_background;
4144 let new_range_started = current_background != new_background
4145 || current_range.end.next_row() != new_row;
4146 if new_range_started {
4147 if current_range.end.next_row() == new_row {
4148 edges.bottom = px(0.);
4149 };
4150 paint_highlight(
4151 current_range.start,
4152 current_range.end,
4153 current_background,
4154 edges,
4155 );
4156 let edges = Edges {
4157 top: if current_range.end.next_row() != new_row {
4158 px(1.)
4159 } else {
4160 px(0.)
4161 },
4162 bottom: px(1.),
4163 ..Default::default()
4164 };
4165 current_paint = Some((new_background, new_row..new_row, edges));
4166 continue;
4167 } else {
4168 current_range.end = current_range.end.next_row();
4169 }
4170 }
4171 None => {
4172 let edges = Edges {
4173 top: px(1.),
4174 bottom: px(1.),
4175 ..Default::default()
4176 };
4177 current_paint = Some((new_background, new_row..new_row, edges))
4178 }
4179 };
4180 }
4181 if let Some((color, range, edges)) = current_paint {
4182 paint_highlight(range.start, range.end, color, edges);
4183 }
4184
4185 let scroll_left =
4186 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4187
4188 for (wrap_position, active) in layout.wrap_guides.iter() {
4189 let x = (layout.position_map.text_hitbox.origin.x
4190 + *wrap_position
4191 + layout.position_map.em_width / 2.)
4192 - scroll_left;
4193
4194 let show_scrollbars = {
4195 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4196
4197 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4198 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4199 };
4200
4201 if x < layout.position_map.text_hitbox.origin.x
4202 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4203 {
4204 continue;
4205 }
4206
4207 let color = if *active {
4208 cx.theme().colors().editor_active_wrap_guide
4209 } else {
4210 cx.theme().colors().editor_wrap_guide
4211 };
4212 window.paint_quad(fill(
4213 Bounds {
4214 origin: point(x, layout.position_map.text_hitbox.origin.y),
4215 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4216 },
4217 color,
4218 ));
4219 }
4220 }
4221 })
4222 }
4223
4224 fn paint_indent_guides(
4225 &mut self,
4226 layout: &mut EditorLayout,
4227 window: &mut Window,
4228 cx: &mut App,
4229 ) {
4230 let Some(indent_guides) = &layout.indent_guides else {
4231 return;
4232 };
4233
4234 let faded_color = |color: Hsla, alpha: f32| {
4235 let mut faded = color;
4236 faded.a = alpha;
4237 faded
4238 };
4239
4240 for indent_guide in indent_guides {
4241 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4242 let settings = indent_guide.settings;
4243
4244 // TODO fixed for now, expose them through themes later
4245 const INDENT_AWARE_ALPHA: f32 = 0.2;
4246 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4247 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4248 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4249
4250 let line_color = match (settings.coloring, indent_guide.active) {
4251 (IndentGuideColoring::Disabled, _) => None,
4252 (IndentGuideColoring::Fixed, false) => {
4253 Some(cx.theme().colors().editor_indent_guide)
4254 }
4255 (IndentGuideColoring::Fixed, true) => {
4256 Some(cx.theme().colors().editor_indent_guide_active)
4257 }
4258 (IndentGuideColoring::IndentAware, false) => {
4259 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4260 }
4261 (IndentGuideColoring::IndentAware, true) => {
4262 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4263 }
4264 };
4265
4266 let background_color = match (settings.background_coloring, indent_guide.active) {
4267 (IndentGuideBackgroundColoring::Disabled, _) => None,
4268 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4269 indent_accent_colors,
4270 INDENT_AWARE_BACKGROUND_ALPHA,
4271 )),
4272 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4273 indent_accent_colors,
4274 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4275 )),
4276 };
4277
4278 let requested_line_width = if indent_guide.active {
4279 settings.active_line_width
4280 } else {
4281 settings.line_width
4282 }
4283 .clamp(1, 10);
4284 let mut line_indicator_width = 0.;
4285 if let Some(color) = line_color {
4286 window.paint_quad(fill(
4287 Bounds {
4288 origin: indent_guide.origin,
4289 size: size(px(requested_line_width as f32), indent_guide.length),
4290 },
4291 color,
4292 ));
4293 line_indicator_width = requested_line_width as f32;
4294 }
4295
4296 if let Some(color) = background_color {
4297 let width = indent_guide.single_indent_width - px(line_indicator_width);
4298 window.paint_quad(fill(
4299 Bounds {
4300 origin: point(
4301 indent_guide.origin.x + px(line_indicator_width),
4302 indent_guide.origin.y,
4303 ),
4304 size: size(width, indent_guide.length),
4305 },
4306 color,
4307 ));
4308 }
4309 }
4310 }
4311
4312 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4313 let is_singleton = self.editor.read(cx).is_singleton(cx);
4314
4315 let line_height = layout.position_map.line_height;
4316 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4317
4318 for LineNumberLayout {
4319 shaped_line,
4320 hitbox,
4321 display_row,
4322 } in layout.line_numbers.values()
4323 {
4324 let Some(hitbox) = hitbox else {
4325 continue;
4326 };
4327
4328 let is_active = layout.active_rows.contains_key(&display_row);
4329
4330 let color = if is_active {
4331 cx.theme().colors().editor_active_line_number
4332 } else if !is_singleton && hitbox.is_hovered(window) {
4333 cx.theme().colors().editor_hover_line_number
4334 } else {
4335 cx.theme().colors().editor_line_number
4336 };
4337
4338 let Some(line) = self
4339 .shape_line_number(shaped_line.text.clone(), color, window)
4340 .log_err()
4341 else {
4342 continue;
4343 };
4344 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4345 continue;
4346 };
4347 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4348 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4349 if is_singleton {
4350 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4351 } else {
4352 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4353 }
4354 }
4355 }
4356
4357 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4358 if layout.display_hunks.is_empty() {
4359 return;
4360 }
4361
4362 let line_height = layout.position_map.line_height;
4363 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4364 for (hunk, hitbox) in &layout.display_hunks {
4365 let hunk_to_paint = match hunk {
4366 DisplayDiffHunk::Folded { .. } => {
4367 let hunk_bounds = Self::diff_hunk_bounds(
4368 &layout.position_map.snapshot,
4369 line_height,
4370 layout.gutter_hitbox.bounds,
4371 hunk,
4372 );
4373 Some((
4374 hunk_bounds,
4375 cx.theme().colors().version_control_modified,
4376 Corners::all(px(0.)),
4377 DiffHunkStatus::modified_none(),
4378 ))
4379 }
4380 DisplayDiffHunk::Unfolded {
4381 status,
4382 display_row_range,
4383 ..
4384 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4385 DiffHunkStatusKind::Added => (
4386 hunk_hitbox.bounds,
4387 cx.theme().colors().version_control_added,
4388 Corners::all(px(0.)),
4389 *status,
4390 ),
4391 DiffHunkStatusKind::Modified => (
4392 hunk_hitbox.bounds,
4393 cx.theme().colors().version_control_modified,
4394 Corners::all(px(0.)),
4395 *status,
4396 ),
4397 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4398 hunk_hitbox.bounds,
4399 cx.theme().colors().version_control_deleted,
4400 Corners::all(px(0.)),
4401 *status,
4402 ),
4403 DiffHunkStatusKind::Deleted => (
4404 Bounds::new(
4405 point(
4406 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4407 hunk_hitbox.origin.y,
4408 ),
4409 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4410 ),
4411 cx.theme().colors().version_control_deleted,
4412 Corners::all(1. * line_height),
4413 *status,
4414 ),
4415 }),
4416 };
4417
4418 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4419 let unstaged = status.has_secondary_hunk();
4420
4421 // Flatten the background color with the editor color to prevent
4422 // elements below transparent hunks from showing through
4423 let flattened_background_color = cx
4424 .theme()
4425 .colors()
4426 .editor_background
4427 .blend(background_color);
4428
4429 if unstaged {
4430 window.paint_quad(quad(
4431 hunk_bounds,
4432 corner_radii,
4433 flattened_background_color,
4434 Edges::default(),
4435 transparent_black(),
4436 ));
4437 } else {
4438 let flattened_unstaged_background_color = cx
4439 .theme()
4440 .colors()
4441 .editor_background
4442 .blend(background_color.opacity(0.3));
4443
4444 window.paint_quad(quad(
4445 hunk_bounds,
4446 corner_radii,
4447 flattened_unstaged_background_color,
4448 Edges::all(Pixels(1.0)),
4449 flattened_background_color,
4450 ));
4451 }
4452 }
4453 }
4454 });
4455 }
4456
4457 fn diff_hunk_bounds(
4458 snapshot: &EditorSnapshot,
4459 line_height: Pixels,
4460 gutter_bounds: Bounds<Pixels>,
4461 hunk: &DisplayDiffHunk,
4462 ) -> Bounds<Pixels> {
4463 let scroll_position = snapshot.scroll_position();
4464 let scroll_top = scroll_position.y * line_height;
4465 let gutter_strip_width = (0.275 * line_height).floor();
4466
4467 match hunk {
4468 DisplayDiffHunk::Folded { display_row, .. } => {
4469 let start_y = display_row.as_f32() * line_height - scroll_top;
4470 let end_y = start_y + line_height;
4471 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4472 let highlight_size = size(gutter_strip_width, end_y - start_y);
4473 Bounds::new(highlight_origin, highlight_size)
4474 }
4475 DisplayDiffHunk::Unfolded {
4476 display_row_range,
4477 status,
4478 ..
4479 } => {
4480 if status.is_deleted() && display_row_range.is_empty() {
4481 let row = display_row_range.start;
4482
4483 let offset = line_height / 2.;
4484 let start_y = row.as_f32() * line_height - offset - scroll_top;
4485 let end_y = start_y + line_height;
4486
4487 let width = (0.35 * line_height).floor();
4488 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4489 let highlight_size = size(width, end_y - start_y);
4490 Bounds::new(highlight_origin, highlight_size)
4491 } else {
4492 let start_row = display_row_range.start;
4493 let end_row = display_row_range.end;
4494 // If we're in a multibuffer, row range span might include an
4495 // excerpt header, so if we were to draw the marker straight away,
4496 // the hunk might include the rows of that header.
4497 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4498 // Instead, we simply check whether the range we're dealing with includes
4499 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4500 let end_row_in_current_excerpt = snapshot
4501 .blocks_in_range(start_row..end_row)
4502 .find_map(|(start_row, block)| {
4503 if matches!(block, Block::ExcerptBoundary { .. }) {
4504 Some(start_row)
4505 } else {
4506 None
4507 }
4508 })
4509 .unwrap_or(end_row);
4510
4511 let start_y = start_row.as_f32() * line_height - scroll_top;
4512 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4513
4514 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4515 let highlight_size = size(gutter_strip_width, end_y - start_y);
4516 Bounds::new(highlight_origin, highlight_size)
4517 }
4518 }
4519 }
4520 }
4521
4522 fn paint_gutter_indicators(
4523 &self,
4524 layout: &mut EditorLayout,
4525 window: &mut Window,
4526 cx: &mut App,
4527 ) {
4528 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4529 window.with_element_namespace("crease_toggles", |window| {
4530 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4531 crease_toggle.paint(window, cx);
4532 }
4533 });
4534
4535 for test_indicator in layout.test_indicators.iter_mut() {
4536 test_indicator.paint(window, cx);
4537 }
4538
4539 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4540 indicator.paint(window, cx);
4541 }
4542 });
4543 }
4544
4545 fn paint_gutter_highlights(
4546 &self,
4547 layout: &mut EditorLayout,
4548 window: &mut Window,
4549 cx: &mut App,
4550 ) {
4551 for (_, hunk_hitbox) in &layout.display_hunks {
4552 if let Some(hunk_hitbox) = hunk_hitbox {
4553 if !self
4554 .editor
4555 .read(cx)
4556 .buffer()
4557 .read(cx)
4558 .all_diff_hunks_expanded()
4559 {
4560 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4561 }
4562 }
4563 }
4564
4565 let show_git_gutter = layout
4566 .position_map
4567 .snapshot
4568 .show_git_diff_gutter
4569 .unwrap_or_else(|| {
4570 matches!(
4571 ProjectSettings::get_global(cx).git.git_gutter,
4572 Some(GitGutterSetting::TrackedFiles)
4573 )
4574 });
4575 if show_git_gutter {
4576 Self::paint_gutter_diff_hunks(layout, window, cx)
4577 }
4578
4579 let highlight_width = 0.275 * layout.position_map.line_height;
4580 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4581 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4582 for (range, color) in &layout.highlighted_gutter_ranges {
4583 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4584 layout.visible_display_row_range.start - DisplayRow(1)
4585 } else {
4586 range.start.row()
4587 };
4588 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4589 layout.visible_display_row_range.end + DisplayRow(1)
4590 } else {
4591 range.end.row()
4592 };
4593
4594 let start_y = layout.gutter_hitbox.top()
4595 + start_row.0 as f32 * layout.position_map.line_height
4596 - layout.position_map.scroll_pixel_position.y;
4597 let end_y = layout.gutter_hitbox.top()
4598 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4599 - layout.position_map.scroll_pixel_position.y;
4600 let bounds = Bounds::from_corners(
4601 point(layout.gutter_hitbox.left(), start_y),
4602 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4603 );
4604 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4605 }
4606 });
4607 }
4608
4609 fn paint_blamed_display_rows(
4610 &self,
4611 layout: &mut EditorLayout,
4612 window: &mut Window,
4613 cx: &mut App,
4614 ) {
4615 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4616 return;
4617 };
4618
4619 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4620 for mut blame_element in blamed_display_rows.into_iter() {
4621 blame_element.paint(window, cx);
4622 }
4623 })
4624 }
4625
4626 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4627 window.with_content_mask(
4628 Some(ContentMask {
4629 bounds: layout.position_map.text_hitbox.bounds,
4630 }),
4631 |window| {
4632 let cursor_style = if self
4633 .editor
4634 .read(cx)
4635 .hovered_link_state
4636 .as_ref()
4637 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4638 {
4639 CursorStyle::PointingHand
4640 } else {
4641 CursorStyle::IBeam
4642 };
4643 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4644
4645 self.paint_lines_background(layout, window, cx);
4646 let invisible_display_ranges = self.paint_highlights(layout, window);
4647 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4648 self.paint_redactions(layout, window);
4649 self.paint_cursors(layout, window, cx);
4650 self.paint_inline_diagnostics(layout, window, cx);
4651 self.paint_inline_blame(layout, window, cx);
4652 self.paint_diff_hunk_controls(layout, window, cx);
4653 window.with_element_namespace("crease_trailers", |window| {
4654 for trailer in layout.crease_trailers.iter_mut().flatten() {
4655 trailer.element.paint(window, cx);
4656 }
4657 });
4658 },
4659 )
4660 }
4661
4662 fn paint_highlights(
4663 &mut self,
4664 layout: &mut EditorLayout,
4665 window: &mut Window,
4666 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4667 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4668 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4669 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4670 for (range, color) in &layout.highlighted_ranges {
4671 self.paint_highlighted_range(
4672 range.clone(),
4673 *color,
4674 Pixels::ZERO,
4675 line_end_overshoot,
4676 layout,
4677 window,
4678 );
4679 }
4680
4681 let corner_radius = 0.15 * layout.position_map.line_height;
4682
4683 for (player_color, selections) in &layout.selections {
4684 for selection in selections.iter() {
4685 self.paint_highlighted_range(
4686 selection.range.clone(),
4687 player_color.selection,
4688 corner_radius,
4689 corner_radius * 2.,
4690 layout,
4691 window,
4692 );
4693
4694 if selection.is_local && !selection.range.is_empty() {
4695 invisible_display_ranges.push(selection.range.clone());
4696 }
4697 }
4698 }
4699 invisible_display_ranges
4700 })
4701 }
4702
4703 fn paint_lines(
4704 &mut self,
4705 invisible_display_ranges: &[Range<DisplayPoint>],
4706 layout: &mut EditorLayout,
4707 window: &mut Window,
4708 cx: &mut App,
4709 ) {
4710 let whitespace_setting = self
4711 .editor
4712 .read(cx)
4713 .buffer
4714 .read(cx)
4715 .language_settings(cx)
4716 .show_whitespaces;
4717
4718 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4719 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4720 line_with_invisibles.draw(
4721 layout,
4722 row,
4723 layout.content_origin,
4724 whitespace_setting,
4725 invisible_display_ranges,
4726 window,
4727 cx,
4728 )
4729 }
4730
4731 for line_element in &mut layout.line_elements {
4732 line_element.paint(window, cx);
4733 }
4734 }
4735
4736 fn paint_lines_background(
4737 &mut self,
4738 layout: &mut EditorLayout,
4739 window: &mut Window,
4740 cx: &mut App,
4741 ) {
4742 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4743 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4744 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4745 }
4746 }
4747
4748 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4749 if layout.redacted_ranges.is_empty() {
4750 return;
4751 }
4752
4753 let line_end_overshoot = layout.line_end_overshoot();
4754
4755 // A softer than perfect black
4756 let redaction_color = gpui::rgb(0x0e1111);
4757
4758 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4759 for range in layout.redacted_ranges.iter() {
4760 self.paint_highlighted_range(
4761 range.clone(),
4762 redaction_color.into(),
4763 Pixels::ZERO,
4764 line_end_overshoot,
4765 layout,
4766 window,
4767 );
4768 }
4769 });
4770 }
4771
4772 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4773 for cursor in &mut layout.visible_cursors {
4774 cursor.paint(layout.content_origin, window, cx);
4775 }
4776 }
4777
4778 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4779 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4780
4781 if let Some(scrollbar_layout) = scrollbar_x {
4782 let hitbox = scrollbar_layout.hitbox.clone();
4783 let text_unit_size = scrollbar_layout.text_unit_size;
4784 let visible_range = scrollbar_layout.visible_range.clone();
4785 let thumb_bounds = scrollbar_layout.thumb_bounds();
4786
4787 if scrollbar_layout.visible {
4788 window.paint_layer(hitbox.bounds, |window| {
4789 window.paint_quad(quad(
4790 hitbox.bounds,
4791 Corners::default(),
4792 cx.theme().colors().scrollbar_track_background,
4793 Edges {
4794 top: Pixels::ZERO,
4795 right: Pixels::ZERO,
4796 bottom: Pixels::ZERO,
4797 left: Pixels::ZERO,
4798 },
4799 cx.theme().colors().scrollbar_track_border,
4800 ));
4801
4802 window.paint_quad(quad(
4803 thumb_bounds,
4804 Corners::default(),
4805 cx.theme().colors().scrollbar_thumb_background,
4806 Edges {
4807 top: Pixels::ZERO,
4808 right: Pixels::ZERO,
4809 bottom: Pixels::ZERO,
4810 left: ScrollbarLayout::BORDER_WIDTH,
4811 },
4812 cx.theme().colors().scrollbar_thumb_border,
4813 ));
4814 })
4815 }
4816
4817 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4818
4819 window.on_mouse_event({
4820 let editor = self.editor.clone();
4821
4822 // there may be a way to avoid this clone
4823 let hitbox = hitbox.clone();
4824
4825 let mut mouse_position = window.mouse_position();
4826 move |event: &MouseMoveEvent, phase, window, cx| {
4827 if phase == DispatchPhase::Capture {
4828 return;
4829 }
4830
4831 editor.update(cx, |editor, cx| {
4832 if event.pressed_button == Some(MouseButton::Left)
4833 && editor
4834 .scroll_manager
4835 .is_dragging_scrollbar(Axis::Horizontal)
4836 {
4837 let x = mouse_position.x;
4838 let new_x = event.position.x;
4839 if (hitbox.left()..hitbox.right()).contains(&x) {
4840 let mut position = editor.scroll_position(cx);
4841
4842 position.x += (new_x - x) / text_unit_size;
4843 if position.x < 0.0 {
4844 position.x = 0.0;
4845 }
4846 editor.set_scroll_position(position, window, cx);
4847 }
4848
4849 cx.stop_propagation();
4850 } else {
4851 editor.scroll_manager.set_is_dragging_scrollbar(
4852 Axis::Horizontal,
4853 false,
4854 cx,
4855 );
4856
4857 if hitbox.is_hovered(window) {
4858 editor.scroll_manager.show_scrollbar(window, cx);
4859 }
4860 }
4861 mouse_position = event.position;
4862 })
4863 }
4864 });
4865
4866 if self
4867 .editor
4868 .read(cx)
4869 .scroll_manager
4870 .is_dragging_scrollbar(Axis::Horizontal)
4871 {
4872 window.on_mouse_event({
4873 let editor = self.editor.clone();
4874 move |_: &MouseUpEvent, phase, _, cx| {
4875 if phase == DispatchPhase::Capture {
4876 return;
4877 }
4878
4879 editor.update(cx, |editor, cx| {
4880 editor.scroll_manager.set_is_dragging_scrollbar(
4881 Axis::Horizontal,
4882 false,
4883 cx,
4884 );
4885 cx.stop_propagation();
4886 });
4887 }
4888 });
4889 } else {
4890 window.on_mouse_event({
4891 let editor = self.editor.clone();
4892
4893 move |event: &MouseDownEvent, phase, window, cx| {
4894 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4895 return;
4896 }
4897
4898 editor.update(cx, |editor, cx| {
4899 editor.scroll_manager.set_is_dragging_scrollbar(
4900 Axis::Horizontal,
4901 true,
4902 cx,
4903 );
4904
4905 let x = event.position.x;
4906
4907 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4908 let center_row =
4909 ((x - hitbox.left()) / text_unit_size).round() as u32;
4910 let top_row = center_row.saturating_sub(
4911 (visible_range.end - visible_range.start) as u32 / 2,
4912 );
4913
4914 let mut position = editor.scroll_position(cx);
4915 position.x = top_row as f32;
4916
4917 editor.set_scroll_position(position, window, cx);
4918 } else {
4919 editor.scroll_manager.show_scrollbar(window, cx);
4920 }
4921
4922 cx.stop_propagation();
4923 });
4924 }
4925 });
4926 }
4927 }
4928
4929 if let Some(scrollbar_layout) = scrollbar_y {
4930 let hitbox = scrollbar_layout.hitbox.clone();
4931 let text_unit_size = scrollbar_layout.text_unit_size;
4932 let visible_range = scrollbar_layout.visible_range.clone();
4933 let thumb_bounds = scrollbar_layout.thumb_bounds();
4934
4935 if scrollbar_layout.visible {
4936 window.paint_layer(hitbox.bounds, |window| {
4937 window.paint_quad(quad(
4938 hitbox.bounds,
4939 Corners::default(),
4940 cx.theme().colors().scrollbar_track_background,
4941 Edges {
4942 top: Pixels::ZERO,
4943 right: Pixels::ZERO,
4944 bottom: Pixels::ZERO,
4945 left: ScrollbarLayout::BORDER_WIDTH,
4946 },
4947 cx.theme().colors().scrollbar_track_border,
4948 ));
4949
4950 let fast_markers =
4951 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4952 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4953 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4954
4955 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4956 for marker in markers.iter().chain(&fast_markers) {
4957 let mut marker = marker.clone();
4958 marker.bounds.origin += hitbox.origin;
4959 window.paint_quad(marker);
4960 }
4961
4962 window.paint_quad(quad(
4963 thumb_bounds,
4964 Corners::default(),
4965 cx.theme().colors().scrollbar_thumb_background,
4966 Edges {
4967 top: Pixels::ZERO,
4968 right: Pixels::ZERO,
4969 bottom: Pixels::ZERO,
4970 left: ScrollbarLayout::BORDER_WIDTH,
4971 },
4972 cx.theme().colors().scrollbar_thumb_border,
4973 ));
4974 });
4975 }
4976
4977 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4978
4979 window.on_mouse_event({
4980 let editor = self.editor.clone();
4981
4982 let hitbox = hitbox.clone();
4983
4984 let mut mouse_position = window.mouse_position();
4985 move |event: &MouseMoveEvent, phase, window, cx| {
4986 if phase == DispatchPhase::Capture {
4987 return;
4988 }
4989
4990 editor.update(cx, |editor, cx| {
4991 if event.pressed_button == Some(MouseButton::Left)
4992 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
4993 {
4994 let y = mouse_position.y;
4995 let new_y = event.position.y;
4996 if (hitbox.top()..hitbox.bottom()).contains(&y) {
4997 let mut position = editor.scroll_position(cx);
4998 position.y += (new_y - y) / text_unit_size;
4999 if position.y < 0.0 {
5000 position.y = 0.0;
5001 }
5002 editor.set_scroll_position(position, window, cx);
5003 }
5004 } else {
5005 editor.scroll_manager.set_is_dragging_scrollbar(
5006 Axis::Vertical,
5007 false,
5008 cx,
5009 );
5010
5011 if hitbox.is_hovered(window) {
5012 editor.scroll_manager.show_scrollbar(window, cx);
5013 }
5014 }
5015 mouse_position = event.position;
5016 })
5017 }
5018 });
5019
5020 if self
5021 .editor
5022 .read(cx)
5023 .scroll_manager
5024 .is_dragging_scrollbar(Axis::Vertical)
5025 {
5026 window.on_mouse_event({
5027 let editor = self.editor.clone();
5028 move |_: &MouseUpEvent, phase, _, cx| {
5029 if phase == DispatchPhase::Capture {
5030 return;
5031 }
5032
5033 editor.update(cx, |editor, cx| {
5034 editor.scroll_manager.set_is_dragging_scrollbar(
5035 Axis::Vertical,
5036 false,
5037 cx,
5038 );
5039 cx.stop_propagation();
5040 });
5041 }
5042 });
5043 } else {
5044 window.on_mouse_event({
5045 let editor = self.editor.clone();
5046
5047 move |event: &MouseDownEvent, phase, window, cx| {
5048 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5049 return;
5050 }
5051
5052 editor.update(cx, |editor, cx| {
5053 editor.scroll_manager.set_is_dragging_scrollbar(
5054 Axis::Vertical,
5055 true,
5056 cx,
5057 );
5058
5059 let y = event.position.y;
5060 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5061 let center_row =
5062 ((y - hitbox.top()) / text_unit_size).round() as u32;
5063 let top_row = center_row.saturating_sub(
5064 (visible_range.end - visible_range.start) as u32 / 2,
5065 );
5066 let mut position = editor.scroll_position(cx);
5067 position.y = top_row as f32;
5068 editor.set_scroll_position(position, window, cx);
5069 } else {
5070 editor.scroll_manager.show_scrollbar(window, cx);
5071 }
5072
5073 cx.stop_propagation();
5074 });
5075 }
5076 });
5077 }
5078 }
5079 }
5080
5081 fn collect_fast_scrollbar_markers(
5082 &self,
5083 layout: &EditorLayout,
5084 scrollbar_layout: &ScrollbarLayout,
5085 cx: &mut App,
5086 ) -> Vec<PaintQuad> {
5087 const LIMIT: usize = 100;
5088 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5089 return vec![];
5090 }
5091 let cursor_ranges = layout
5092 .cursors
5093 .iter()
5094 .map(|(point, color)| ColoredRange {
5095 start: point.row(),
5096 end: point.row(),
5097 color: *color,
5098 })
5099 .collect_vec();
5100 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5101 }
5102
5103 fn refresh_slow_scrollbar_markers(
5104 &self,
5105 layout: &EditorLayout,
5106 scrollbar_layout: &ScrollbarLayout,
5107 window: &mut Window,
5108 cx: &mut App,
5109 ) {
5110 self.editor.update(cx, |editor, cx| {
5111 if !editor.is_singleton(cx)
5112 || !editor
5113 .scrollbar_marker_state
5114 .should_refresh(scrollbar_layout.hitbox.size)
5115 {
5116 return;
5117 }
5118
5119 let scrollbar_layout = scrollbar_layout.clone();
5120 let background_highlights = editor.background_highlights.clone();
5121 let snapshot = layout.position_map.snapshot.clone();
5122 let theme = cx.theme().clone();
5123 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5124
5125 editor.scrollbar_marker_state.dirty = false;
5126 editor.scrollbar_marker_state.pending_refresh =
5127 Some(cx.spawn_in(window, |editor, mut cx| async move {
5128 let scrollbar_size = scrollbar_layout.hitbox.size;
5129 let scrollbar_markers = cx
5130 .background_spawn(async move {
5131 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5132 let mut marker_quads = Vec::new();
5133 if scrollbar_settings.git_diff {
5134 let marker_row_ranges =
5135 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5136 let start_display_row =
5137 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5138 .to_display_point(&snapshot.display_snapshot)
5139 .row();
5140 let mut end_display_row =
5141 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5142 .to_display_point(&snapshot.display_snapshot)
5143 .row();
5144 if end_display_row != start_display_row {
5145 end_display_row.0 -= 1;
5146 }
5147 let color = match &hunk.status().kind {
5148 DiffHunkStatusKind::Added => {
5149 theme.colors().version_control_added
5150 }
5151 DiffHunkStatusKind::Modified => {
5152 theme.colors().version_control_modified
5153 }
5154 DiffHunkStatusKind::Deleted => {
5155 theme.colors().version_control_deleted
5156 }
5157 };
5158 ColoredRange {
5159 start: start_display_row,
5160 end: end_display_row,
5161 color,
5162 }
5163 });
5164
5165 marker_quads.extend(
5166 scrollbar_layout
5167 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5168 );
5169 }
5170
5171 for (background_highlight_id, (_, background_ranges)) in
5172 background_highlights.iter()
5173 {
5174 let is_search_highlights = *background_highlight_id
5175 == TypeId::of::<BufferSearchHighlights>();
5176 let is_text_highlights = *background_highlight_id
5177 == TypeId::of::<SelectedTextHighlight>();
5178 let is_symbol_occurrences = *background_highlight_id
5179 == TypeId::of::<DocumentHighlightRead>()
5180 || *background_highlight_id
5181 == TypeId::of::<DocumentHighlightWrite>();
5182 if (is_search_highlights && scrollbar_settings.search_results)
5183 || (is_text_highlights && scrollbar_settings.selected_text)
5184 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5185 {
5186 let mut color = theme.status().info;
5187 if is_symbol_occurrences {
5188 color.fade_out(0.5);
5189 }
5190 let marker_row_ranges = background_ranges.iter().map(|range| {
5191 let display_start = range
5192 .start
5193 .to_display_point(&snapshot.display_snapshot);
5194 let display_end =
5195 range.end.to_display_point(&snapshot.display_snapshot);
5196 ColoredRange {
5197 start: display_start.row(),
5198 end: display_end.row(),
5199 color,
5200 }
5201 });
5202 marker_quads.extend(
5203 scrollbar_layout
5204 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5205 );
5206 }
5207 }
5208
5209 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5210 let diagnostics = snapshot
5211 .buffer_snapshot
5212 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5213 // Don't show diagnostics the user doesn't care about
5214 .filter(|diagnostic| {
5215 match (
5216 scrollbar_settings.diagnostics,
5217 diagnostic.diagnostic.severity,
5218 ) {
5219 (ScrollbarDiagnostics::All, _) => true,
5220 (
5221 ScrollbarDiagnostics::Error,
5222 DiagnosticSeverity::ERROR,
5223 ) => true,
5224 (
5225 ScrollbarDiagnostics::Warning,
5226 DiagnosticSeverity::ERROR
5227 | DiagnosticSeverity::WARNING,
5228 ) => true,
5229 (
5230 ScrollbarDiagnostics::Information,
5231 DiagnosticSeverity::ERROR
5232 | DiagnosticSeverity::WARNING
5233 | DiagnosticSeverity::INFORMATION,
5234 ) => true,
5235 (_, _) => false,
5236 }
5237 })
5238 // We want to sort by severity, in order to paint the most severe diagnostics last.
5239 .sorted_by_key(|diagnostic| {
5240 std::cmp::Reverse(diagnostic.diagnostic.severity)
5241 });
5242
5243 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5244 let start_display = diagnostic
5245 .range
5246 .start
5247 .to_display_point(&snapshot.display_snapshot);
5248 let end_display = diagnostic
5249 .range
5250 .end
5251 .to_display_point(&snapshot.display_snapshot);
5252 let color = match diagnostic.diagnostic.severity {
5253 DiagnosticSeverity::ERROR => theme.status().error,
5254 DiagnosticSeverity::WARNING => theme.status().warning,
5255 DiagnosticSeverity::INFORMATION => theme.status().info,
5256 _ => theme.status().hint,
5257 };
5258 ColoredRange {
5259 start: start_display.row(),
5260 end: end_display.row(),
5261 color,
5262 }
5263 });
5264 marker_quads.extend(
5265 scrollbar_layout
5266 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5267 );
5268 }
5269
5270 Arc::from(marker_quads)
5271 })
5272 .await;
5273
5274 editor.update(&mut cx, |editor, cx| {
5275 editor.scrollbar_marker_state.markers = scrollbar_markers;
5276 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5277 editor.scrollbar_marker_state.pending_refresh = None;
5278 cx.notify();
5279 })?;
5280
5281 Ok(())
5282 }));
5283 });
5284 }
5285
5286 fn paint_highlighted_range(
5287 &self,
5288 range: Range<DisplayPoint>,
5289 color: Hsla,
5290 corner_radius: Pixels,
5291 line_end_overshoot: Pixels,
5292 layout: &EditorLayout,
5293 window: &mut Window,
5294 ) {
5295 let start_row = layout.visible_display_row_range.start;
5296 let end_row = layout.visible_display_row_range.end;
5297 if range.start != range.end {
5298 let row_range = if range.end.column() == 0 {
5299 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5300 } else {
5301 cmp::max(range.start.row(), start_row)
5302 ..cmp::min(range.end.row().next_row(), end_row)
5303 };
5304
5305 let highlighted_range = HighlightedRange {
5306 color,
5307 line_height: layout.position_map.line_height,
5308 corner_radius,
5309 start_y: layout.content_origin.y
5310 + row_range.start.as_f32() * layout.position_map.line_height
5311 - layout.position_map.scroll_pixel_position.y,
5312 lines: row_range
5313 .iter_rows()
5314 .map(|row| {
5315 let line_layout =
5316 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5317 HighlightedRangeLine {
5318 start_x: if row == range.start.row() {
5319 layout.content_origin.x
5320 + line_layout.x_for_index(range.start.column() as usize)
5321 - layout.position_map.scroll_pixel_position.x
5322 } else {
5323 layout.content_origin.x
5324 - layout.position_map.scroll_pixel_position.x
5325 },
5326 end_x: if row == range.end.row() {
5327 layout.content_origin.x
5328 + line_layout.x_for_index(range.end.column() as usize)
5329 - layout.position_map.scroll_pixel_position.x
5330 } else {
5331 layout.content_origin.x + line_layout.width + line_end_overshoot
5332 - layout.position_map.scroll_pixel_position.x
5333 },
5334 }
5335 })
5336 .collect(),
5337 };
5338
5339 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5340 }
5341 }
5342
5343 fn paint_inline_diagnostics(
5344 &mut self,
5345 layout: &mut EditorLayout,
5346 window: &mut Window,
5347 cx: &mut App,
5348 ) {
5349 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5350 inline_diagnostic.1.paint(window, cx);
5351 }
5352 }
5353
5354 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5355 if let Some(mut inline_blame) = layout.inline_blame.take() {
5356 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5357 inline_blame.paint(window, cx);
5358 })
5359 }
5360 }
5361
5362 fn paint_diff_hunk_controls(
5363 &mut self,
5364 layout: &mut EditorLayout,
5365 window: &mut Window,
5366 cx: &mut App,
5367 ) {
5368 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5369 diff_hunk_control.paint(window, cx);
5370 }
5371 }
5372
5373 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5374 for mut block in layout.blocks.drain(..) {
5375 block.element.paint(window, cx);
5376 }
5377 }
5378
5379 fn paint_inline_completion_popover(
5380 &mut self,
5381 layout: &mut EditorLayout,
5382 window: &mut Window,
5383 cx: &mut App,
5384 ) {
5385 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5386 inline_completion_popover.paint(window, cx);
5387 }
5388 }
5389
5390 fn paint_mouse_context_menu(
5391 &mut self,
5392 layout: &mut EditorLayout,
5393 window: &mut Window,
5394 cx: &mut App,
5395 ) {
5396 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5397 mouse_context_menu.paint(window, cx);
5398 }
5399 }
5400
5401 fn paint_scroll_wheel_listener(
5402 &mut self,
5403 layout: &EditorLayout,
5404 window: &mut Window,
5405 cx: &mut App,
5406 ) {
5407 window.on_mouse_event({
5408 let position_map = layout.position_map.clone();
5409 let editor = self.editor.clone();
5410 let hitbox = layout.hitbox.clone();
5411 let mut delta = ScrollDelta::default();
5412
5413 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5414 // accidentally turn off their scrolling.
5415 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5416
5417 move |event: &ScrollWheelEvent, phase, window, cx| {
5418 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5419 delta = delta.coalesce(event.delta);
5420 editor.update(cx, |editor, cx| {
5421 let position_map: &PositionMap = &position_map;
5422
5423 let line_height = position_map.line_height;
5424 let max_glyph_width = position_map.em_width;
5425 let (delta, axis) = match delta {
5426 gpui::ScrollDelta::Pixels(mut pixels) => {
5427 //Trackpad
5428 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5429 (pixels, axis)
5430 }
5431
5432 gpui::ScrollDelta::Lines(lines) => {
5433 //Not trackpad
5434 let pixels =
5435 point(lines.x * max_glyph_width, lines.y * line_height);
5436 (pixels, None)
5437 }
5438 };
5439
5440 let current_scroll_position = position_map.snapshot.scroll_position();
5441 let x = (current_scroll_position.x * max_glyph_width
5442 - (delta.x * scroll_sensitivity))
5443 / max_glyph_width;
5444 let y = (current_scroll_position.y * line_height
5445 - (delta.y * scroll_sensitivity))
5446 / line_height;
5447 let mut scroll_position =
5448 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5449 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5450 if forbid_vertical_scroll {
5451 scroll_position.y = current_scroll_position.y;
5452 }
5453
5454 if scroll_position != current_scroll_position {
5455 editor.scroll(scroll_position, axis, window, cx);
5456 cx.stop_propagation();
5457 } else if y < 0. {
5458 // Due to clamping, we may fail to detect cases of overscroll to the top;
5459 // We want the scroll manager to get an update in such cases and detect the change of direction
5460 // on the next frame.
5461 cx.notify();
5462 }
5463 });
5464 }
5465 }
5466 });
5467 }
5468
5469 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5470 self.paint_scroll_wheel_listener(layout, window, cx);
5471
5472 window.on_mouse_event({
5473 let position_map = layout.position_map.clone();
5474 let editor = self.editor.clone();
5475 let diff_hunk_range =
5476 layout
5477 .display_hunks
5478 .iter()
5479 .find_map(|(hunk, hunk_hitbox)| match hunk {
5480 DisplayDiffHunk::Folded { .. } => None,
5481 DisplayDiffHunk::Unfolded {
5482 multi_buffer_range, ..
5483 } => {
5484 if hunk_hitbox
5485 .as_ref()
5486 .map(|hitbox| hitbox.is_hovered(window))
5487 .unwrap_or(false)
5488 {
5489 Some(multi_buffer_range.clone())
5490 } else {
5491 None
5492 }
5493 }
5494 });
5495 let line_numbers = layout.line_numbers.clone();
5496
5497 move |event: &MouseDownEvent, phase, window, cx| {
5498 if phase == DispatchPhase::Bubble {
5499 match event.button {
5500 MouseButton::Left => editor.update(cx, |editor, cx| {
5501 let pending_mouse_down = editor
5502 .pending_mouse_down
5503 .get_or_insert_with(Default::default)
5504 .clone();
5505
5506 *pending_mouse_down.borrow_mut() = Some(event.clone());
5507
5508 Self::mouse_left_down(
5509 editor,
5510 event,
5511 diff_hunk_range.clone(),
5512 &position_map,
5513 line_numbers.as_ref(),
5514 window,
5515 cx,
5516 );
5517 }),
5518 MouseButton::Right => editor.update(cx, |editor, cx| {
5519 Self::mouse_right_down(editor, event, &position_map, window, cx);
5520 }),
5521 MouseButton::Middle => editor.update(cx, |editor, cx| {
5522 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5523 }),
5524 _ => {}
5525 };
5526 }
5527 }
5528 });
5529
5530 window.on_mouse_event({
5531 let editor = self.editor.clone();
5532 let position_map = layout.position_map.clone();
5533
5534 move |event: &MouseUpEvent, phase, window, cx| {
5535 if phase == DispatchPhase::Bubble {
5536 editor.update(cx, |editor, cx| {
5537 Self::mouse_up(editor, event, &position_map, window, cx)
5538 });
5539 }
5540 }
5541 });
5542
5543 window.on_mouse_event({
5544 let editor = self.editor.clone();
5545 let position_map = layout.position_map.clone();
5546 let mut captured_mouse_down = None;
5547
5548 move |event: &MouseUpEvent, phase, window, cx| match phase {
5549 // Clear the pending mouse down during the capture phase,
5550 // so that it happens even if another event handler stops
5551 // propagation.
5552 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5553 let pending_mouse_down = editor
5554 .pending_mouse_down
5555 .get_or_insert_with(Default::default)
5556 .clone();
5557
5558 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5559 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5560 captured_mouse_down = pending_mouse_down.take();
5561 window.refresh();
5562 }
5563 }),
5564 // Fire click handlers during the bubble phase.
5565 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5566 if let Some(mouse_down) = captured_mouse_down.take() {
5567 let event = ClickEvent {
5568 down: mouse_down,
5569 up: event.clone(),
5570 };
5571 Self::click(editor, &event, &position_map, window, cx);
5572 }
5573 }),
5574 }
5575 });
5576
5577 window.on_mouse_event({
5578 let position_map = layout.position_map.clone();
5579 let editor = self.editor.clone();
5580
5581 move |event: &MouseMoveEvent, phase, window, cx| {
5582 if phase == DispatchPhase::Bubble {
5583 editor.update(cx, |editor, cx| {
5584 if editor.hover_state.focused(window, cx) {
5585 return;
5586 }
5587 if event.pressed_button == Some(MouseButton::Left)
5588 || event.pressed_button == Some(MouseButton::Middle)
5589 {
5590 Self::mouse_dragged(editor, event, &position_map, window, cx)
5591 }
5592
5593 Self::mouse_moved(editor, event, &position_map, window, cx)
5594 });
5595 }
5596 }
5597 });
5598 }
5599
5600 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5601 bounds.top_right().x - self.style.scrollbar_width
5602 }
5603
5604 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5605 let style = &self.style;
5606 let font_size = style.text.font_size.to_pixels(window.rem_size());
5607 let layout = window
5608 .text_system()
5609 .shape_line(
5610 SharedString::from(" ".repeat(column)),
5611 font_size,
5612 &[TextRun {
5613 len: column,
5614 font: style.text.font(),
5615 color: Hsla::default(),
5616 background_color: None,
5617 underline: None,
5618 strikethrough: None,
5619 }],
5620 )
5621 .unwrap();
5622
5623 layout.width
5624 }
5625
5626 fn max_line_number_width(
5627 &self,
5628 snapshot: &EditorSnapshot,
5629 window: &mut Window,
5630 cx: &mut App,
5631 ) -> Pixels {
5632 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5633 self.column_pixels(digit_count, window, cx)
5634 }
5635
5636 fn shape_line_number(
5637 &self,
5638 text: SharedString,
5639 color: Hsla,
5640 window: &mut Window,
5641 ) -> anyhow::Result<ShapedLine> {
5642 let run = TextRun {
5643 len: text.len(),
5644 font: self.style.text.font(),
5645 color,
5646 background_color: None,
5647 underline: None,
5648 strikethrough: None,
5649 };
5650 window.text_system().shape_line(
5651 text,
5652 self.style.text.font_size.to_pixels(window.rem_size()),
5653 &[run],
5654 )
5655 }
5656}
5657
5658fn header_jump_data(
5659 snapshot: &EditorSnapshot,
5660 block_row_start: DisplayRow,
5661 height: u32,
5662 for_excerpt: &ExcerptInfo,
5663) -> JumpData {
5664 let range = &for_excerpt.range;
5665 let buffer = &for_excerpt.buffer;
5666 let jump_anchor = range
5667 .primary
5668 .as_ref()
5669 .map_or(range.context.start, |primary| primary.start);
5670
5671 let excerpt_start = range.context.start;
5672 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5673 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5674 0
5675 } else {
5676 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5677 jump_position.row.saturating_sub(excerpt_start_point.row)
5678 };
5679
5680 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5681 .saturating_sub(
5682 snapshot
5683 .scroll_anchor
5684 .scroll_position(&snapshot.display_snapshot)
5685 .y as u32,
5686 );
5687
5688 JumpData::MultiBufferPoint {
5689 excerpt_id: for_excerpt.id,
5690 anchor: jump_anchor,
5691 position: jump_position,
5692 line_offset_from_top,
5693 }
5694}
5695
5696pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5697
5698impl AcceptEditPredictionBinding {
5699 pub fn keystroke(&self) -> Option<&Keystroke> {
5700 if let Some(binding) = self.0.as_ref() {
5701 match &binding.keystrokes() {
5702 [keystroke] => Some(keystroke),
5703 _ => None,
5704 }
5705 } else {
5706 None
5707 }
5708 }
5709}
5710
5711fn prepaint_gutter_button(
5712 button: IconButton,
5713 row: DisplayRow,
5714 line_height: Pixels,
5715 gutter_dimensions: &GutterDimensions,
5716 scroll_pixel_position: gpui::Point<Pixels>,
5717 gutter_hitbox: &Hitbox,
5718 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5719 window: &mut Window,
5720 cx: &mut App,
5721) -> AnyElement {
5722 let mut button = button.into_any_element();
5723 let available_space = size(
5724 AvailableSpace::MinContent,
5725 AvailableSpace::Definite(line_height),
5726 );
5727 let indicator_size = button.layout_as_root(available_space, window, cx);
5728
5729 let blame_width = gutter_dimensions.git_blame_entries_width;
5730 let gutter_width = display_hunks
5731 .binary_search_by(|(hunk, _)| match hunk {
5732 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5733 DisplayDiffHunk::Unfolded {
5734 display_row_range, ..
5735 } => {
5736 if display_row_range.end <= row {
5737 Ordering::Less
5738 } else if display_row_range.start > row {
5739 Ordering::Greater
5740 } else {
5741 Ordering::Equal
5742 }
5743 }
5744 })
5745 .ok()
5746 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5747 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5748
5749 let mut x = left_offset;
5750 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5751 - indicator_size.width
5752 - left_offset;
5753 x += available_width / 2.;
5754
5755 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5756 y += (line_height - indicator_size.height) / 2.;
5757
5758 button.prepaint_as_root(
5759 gutter_hitbox.origin + point(x, y),
5760 available_space,
5761 window,
5762 cx,
5763 );
5764 button
5765}
5766
5767fn render_inline_blame_entry(
5768 editor: Entity<Editor>,
5769 blame: &gpui::Entity<GitBlame>,
5770 blame_entry: BlameEntry,
5771 style: &EditorStyle,
5772 cx: &mut App,
5773) -> AnyElement {
5774 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5775
5776 let author = blame_entry.author.as_deref().unwrap_or_default();
5777 let summary_enabled = ProjectSettings::get_global(cx)
5778 .git
5779 .show_inline_commit_summary();
5780
5781 let text = match blame_entry.summary.as_ref() {
5782 Some(summary) if summary_enabled => {
5783 format!("{}, {} - {}", author, relative_timestamp, summary)
5784 }
5785 _ => format!("{}, {}", author, relative_timestamp),
5786 };
5787 let blame = blame.clone();
5788 let blame_entry = blame_entry.clone();
5789
5790 h_flex()
5791 .id("inline-blame")
5792 .w_full()
5793 .font_family(style.text.font().family)
5794 .text_color(cx.theme().status().hint)
5795 .line_height(style.text.line_height)
5796 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5797 .child(text)
5798 .gap_2()
5799 .hoverable_tooltip(move |window, cx| {
5800 let details = blame.read(cx).details_for_entry(&blame_entry);
5801 let tooltip =
5802 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5803 editor.update(cx, |editor, _| {
5804 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5805 });
5806 tooltip.into()
5807 })
5808 .into_any()
5809}
5810
5811fn render_blame_entry(
5812 ix: usize,
5813 blame: &gpui::Entity<GitBlame>,
5814 blame_entry: BlameEntry,
5815 style: &EditorStyle,
5816 last_used_color: &mut Option<(PlayerColor, Oid)>,
5817 editor: Entity<Editor>,
5818 cx: &mut App,
5819) -> AnyElement {
5820 let mut sha_color = cx
5821 .theme()
5822 .players()
5823 .color_for_participant(blame_entry.sha.into());
5824 // If the last color we used is the same as the one we get for this line, but
5825 // the commit SHAs are different, then we try again to get a different color.
5826 match *last_used_color {
5827 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5828 let index: u32 = blame_entry.sha.into();
5829 sha_color = cx.theme().players().color_for_participant(index + 1);
5830 }
5831 _ => {}
5832 };
5833 last_used_color.replace((sha_color, blame_entry.sha));
5834
5835 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5836
5837 let short_commit_id = blame_entry.sha.display_short();
5838
5839 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5840 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5841 let details = blame.read(cx).details_for_entry(&blame_entry);
5842
5843 h_flex()
5844 .w_full()
5845 .justify_between()
5846 .font_family(style.text.font().family)
5847 .line_height(style.text.line_height)
5848 .id(("blame", ix))
5849 .text_color(cx.theme().status().hint)
5850 .pr_2()
5851 .gap_2()
5852 .child(
5853 h_flex()
5854 .items_center()
5855 .gap_2()
5856 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5857 .child(name),
5858 )
5859 .child(relative_timestamp)
5860 .on_mouse_down(MouseButton::Right, {
5861 let blame_entry = blame_entry.clone();
5862 let details = details.clone();
5863 move |event, window, cx| {
5864 deploy_blame_entry_context_menu(
5865 &blame_entry,
5866 details.as_ref(),
5867 editor.clone(),
5868 event.position,
5869 window,
5870 cx,
5871 );
5872 }
5873 })
5874 .hover(|style| style.bg(cx.theme().colors().element_hover))
5875 .when_some(
5876 details
5877 .as_ref()
5878 .and_then(|details| details.permalink.clone()),
5879 |this, url| {
5880 this.cursor_pointer().on_click(move |_, _, cx| {
5881 cx.stop_propagation();
5882 cx.open_url(url.as_str())
5883 })
5884 },
5885 )
5886 .hoverable_tooltip(move |window, cx| {
5887 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5888 .into()
5889 })
5890 .into_any()
5891}
5892
5893fn deploy_blame_entry_context_menu(
5894 blame_entry: &BlameEntry,
5895 details: Option<&ParsedCommitMessage>,
5896 editor: Entity<Editor>,
5897 position: gpui::Point<Pixels>,
5898 window: &mut Window,
5899 cx: &mut App,
5900) {
5901 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5902 let sha = format!("{}", blame_entry.sha);
5903 menu.on_blur_subscription(Subscription::new(|| {}))
5904 .entry("Copy commit SHA", None, move |_, cx| {
5905 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5906 })
5907 .when_some(
5908 details.and_then(|details| details.permalink.clone()),
5909 |this, url| {
5910 this.entry("Open permalink", None, move |_, cx| {
5911 cx.open_url(url.as_str())
5912 })
5913 },
5914 )
5915 });
5916
5917 editor.update(cx, move |editor, cx| {
5918 editor.mouse_context_menu = Some(MouseContextMenu::new(
5919 MenuPosition::PinnedToScreen(position),
5920 context_menu,
5921 window,
5922 cx,
5923 ));
5924 cx.notify();
5925 });
5926}
5927
5928#[derive(Debug)]
5929pub(crate) struct LineWithInvisibles {
5930 fragments: SmallVec<[LineFragment; 1]>,
5931 invisibles: Vec<Invisible>,
5932 len: usize,
5933 pub(crate) width: Pixels,
5934 font_size: Pixels,
5935}
5936
5937#[allow(clippy::large_enum_variant)]
5938enum LineFragment {
5939 Text(ShapedLine),
5940 Element {
5941 element: Option<AnyElement>,
5942 size: Size<Pixels>,
5943 len: usize,
5944 },
5945}
5946
5947impl fmt::Debug for LineFragment {
5948 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5949 match self {
5950 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5951 LineFragment::Element { size, len, .. } => f
5952 .debug_struct("Element")
5953 .field("size", size)
5954 .field("len", len)
5955 .finish(),
5956 }
5957 }
5958}
5959
5960impl LineWithInvisibles {
5961 fn from_chunks<'a>(
5962 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5963 editor_style: &EditorStyle,
5964 max_line_len: usize,
5965 max_line_count: usize,
5966 editor_mode: EditorMode,
5967 text_width: Pixels,
5968 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5969 window: &mut Window,
5970 cx: &mut App,
5971 ) -> Vec<Self> {
5972 let text_style = &editor_style.text;
5973 let mut layouts = Vec::with_capacity(max_line_count);
5974 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5975 let mut line = String::new();
5976 let mut invisibles = Vec::new();
5977 let mut width = Pixels::ZERO;
5978 let mut len = 0;
5979 let mut styles = Vec::new();
5980 let mut non_whitespace_added = false;
5981 let mut row = 0;
5982 let mut line_exceeded_max_len = false;
5983 let font_size = text_style.font_size.to_pixels(window.rem_size());
5984
5985 let ellipsis = SharedString::from("⋯");
5986
5987 for highlighted_chunk in chunks.chain([HighlightedChunk {
5988 text: "\n",
5989 style: None,
5990 is_tab: false,
5991 replacement: None,
5992 }]) {
5993 if let Some(replacement) = highlighted_chunk.replacement {
5994 if !line.is_empty() {
5995 let shaped_line = window
5996 .text_system()
5997 .shape_line(line.clone().into(), font_size, &styles)
5998 .unwrap();
5999 width += shaped_line.width;
6000 len += shaped_line.len;
6001 fragments.push(LineFragment::Text(shaped_line));
6002 line.clear();
6003 styles.clear();
6004 }
6005
6006 match replacement {
6007 ChunkReplacement::Renderer(renderer) => {
6008 let available_width = if renderer.constrain_width {
6009 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6010 ellipsis.clone()
6011 } else {
6012 SharedString::from(Arc::from(highlighted_chunk.text))
6013 };
6014 let shaped_line = window
6015 .text_system()
6016 .shape_line(
6017 chunk,
6018 font_size,
6019 &[text_style.to_run(highlighted_chunk.text.len())],
6020 )
6021 .unwrap();
6022 AvailableSpace::Definite(shaped_line.width)
6023 } else {
6024 AvailableSpace::MinContent
6025 };
6026
6027 let mut element = (renderer.render)(&mut ChunkRendererContext {
6028 context: cx,
6029 window,
6030 max_width: text_width,
6031 });
6032 let line_height = text_style.line_height_in_pixels(window.rem_size());
6033 let size = element.layout_as_root(
6034 size(available_width, AvailableSpace::Definite(line_height)),
6035 window,
6036 cx,
6037 );
6038
6039 width += size.width;
6040 len += highlighted_chunk.text.len();
6041 fragments.push(LineFragment::Element {
6042 element: Some(element),
6043 size,
6044 len: highlighted_chunk.text.len(),
6045 });
6046 }
6047 ChunkReplacement::Str(x) => {
6048 let text_style = if let Some(style) = highlighted_chunk.style {
6049 Cow::Owned(text_style.clone().highlight(style))
6050 } else {
6051 Cow::Borrowed(text_style)
6052 };
6053
6054 let run = TextRun {
6055 len: x.len(),
6056 font: text_style.font(),
6057 color: text_style.color,
6058 background_color: text_style.background_color,
6059 underline: text_style.underline,
6060 strikethrough: text_style.strikethrough,
6061 };
6062 let line_layout = window
6063 .text_system()
6064 .shape_line(x, font_size, &[run])
6065 .unwrap()
6066 .with_len(highlighted_chunk.text.len());
6067
6068 width += line_layout.width;
6069 len += highlighted_chunk.text.len();
6070 fragments.push(LineFragment::Text(line_layout))
6071 }
6072 }
6073 } else {
6074 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6075 if ix > 0 {
6076 let shaped_line = window
6077 .text_system()
6078 .shape_line(line.clone().into(), font_size, &styles)
6079 .unwrap();
6080 width += shaped_line.width;
6081 len += shaped_line.len;
6082 fragments.push(LineFragment::Text(shaped_line));
6083 layouts.push(Self {
6084 width: mem::take(&mut width),
6085 len: mem::take(&mut len),
6086 fragments: mem::take(&mut fragments),
6087 invisibles: std::mem::take(&mut invisibles),
6088 font_size,
6089 });
6090
6091 line.clear();
6092 styles.clear();
6093 row += 1;
6094 line_exceeded_max_len = false;
6095 non_whitespace_added = false;
6096 if row == max_line_count {
6097 return layouts;
6098 }
6099 }
6100
6101 if !line_chunk.is_empty() && !line_exceeded_max_len {
6102 let text_style = if let Some(style) = highlighted_chunk.style {
6103 Cow::Owned(text_style.clone().highlight(style))
6104 } else {
6105 Cow::Borrowed(text_style)
6106 };
6107
6108 if line.len() + line_chunk.len() > max_line_len {
6109 let mut chunk_len = max_line_len - line.len();
6110 while !line_chunk.is_char_boundary(chunk_len) {
6111 chunk_len -= 1;
6112 }
6113 line_chunk = &line_chunk[..chunk_len];
6114 line_exceeded_max_len = true;
6115 }
6116
6117 styles.push(TextRun {
6118 len: line_chunk.len(),
6119 font: text_style.font(),
6120 color: text_style.color,
6121 background_color: text_style.background_color,
6122 underline: text_style.underline,
6123 strikethrough: text_style.strikethrough,
6124 });
6125
6126 if editor_mode == EditorMode::Full {
6127 // Line wrap pads its contents with fake whitespaces,
6128 // avoid printing them
6129 let is_soft_wrapped = is_row_soft_wrapped(row);
6130 if highlighted_chunk.is_tab {
6131 if non_whitespace_added || !is_soft_wrapped {
6132 invisibles.push(Invisible::Tab {
6133 line_start_offset: line.len(),
6134 line_end_offset: line.len() + line_chunk.len(),
6135 });
6136 }
6137 } else {
6138 invisibles.extend(line_chunk.char_indices().filter_map(
6139 |(index, c)| {
6140 let is_whitespace = c.is_whitespace();
6141 non_whitespace_added |= !is_whitespace;
6142 if is_whitespace
6143 && (non_whitespace_added || !is_soft_wrapped)
6144 {
6145 Some(Invisible::Whitespace {
6146 line_offset: line.len() + index,
6147 })
6148 } else {
6149 None
6150 }
6151 },
6152 ))
6153 }
6154 }
6155
6156 line.push_str(line_chunk);
6157 }
6158 }
6159 }
6160 }
6161
6162 layouts
6163 }
6164
6165 fn prepaint(
6166 &mut self,
6167 line_height: Pixels,
6168 scroll_pixel_position: gpui::Point<Pixels>,
6169 row: DisplayRow,
6170 content_origin: gpui::Point<Pixels>,
6171 line_elements: &mut SmallVec<[AnyElement; 1]>,
6172 window: &mut Window,
6173 cx: &mut App,
6174 ) {
6175 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6176 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6177 for fragment in &mut self.fragments {
6178 match fragment {
6179 LineFragment::Text(line) => {
6180 fragment_origin.x += line.width;
6181 }
6182 LineFragment::Element { element, size, .. } => {
6183 let mut element = element
6184 .take()
6185 .expect("you can't prepaint LineWithInvisibles twice");
6186
6187 // Center the element vertically within the line.
6188 let mut element_origin = fragment_origin;
6189 element_origin.y += (line_height - size.height) / 2.;
6190 element.prepaint_at(element_origin, window, cx);
6191 line_elements.push(element);
6192
6193 fragment_origin.x += size.width;
6194 }
6195 }
6196 }
6197 }
6198
6199 fn draw(
6200 &self,
6201 layout: &EditorLayout,
6202 row: DisplayRow,
6203 content_origin: gpui::Point<Pixels>,
6204 whitespace_setting: ShowWhitespaceSetting,
6205 selection_ranges: &[Range<DisplayPoint>],
6206 window: &mut Window,
6207 cx: &mut App,
6208 ) {
6209 let line_height = layout.position_map.line_height;
6210 let line_y = line_height
6211 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6212
6213 let mut fragment_origin =
6214 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6215
6216 for fragment in &self.fragments {
6217 match fragment {
6218 LineFragment::Text(line) => {
6219 line.paint(fragment_origin, line_height, window, cx)
6220 .log_err();
6221 fragment_origin.x += line.width;
6222 }
6223 LineFragment::Element { size, .. } => {
6224 fragment_origin.x += size.width;
6225 }
6226 }
6227 }
6228
6229 self.draw_invisibles(
6230 selection_ranges,
6231 layout,
6232 content_origin,
6233 line_y,
6234 row,
6235 line_height,
6236 whitespace_setting,
6237 window,
6238 cx,
6239 );
6240 }
6241
6242 fn draw_background(
6243 &self,
6244 layout: &EditorLayout,
6245 row: DisplayRow,
6246 content_origin: gpui::Point<Pixels>,
6247 window: &mut Window,
6248 cx: &mut App,
6249 ) {
6250 let line_height = layout.position_map.line_height;
6251 let line_y = line_height
6252 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6253
6254 let mut fragment_origin =
6255 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6256
6257 for fragment in &self.fragments {
6258 match fragment {
6259 LineFragment::Text(line) => {
6260 line.paint_background(fragment_origin, line_height, window, cx)
6261 .log_err();
6262 fragment_origin.x += line.width;
6263 }
6264 LineFragment::Element { size, .. } => {
6265 fragment_origin.x += size.width;
6266 }
6267 }
6268 }
6269 }
6270
6271 fn draw_invisibles(
6272 &self,
6273 selection_ranges: &[Range<DisplayPoint>],
6274 layout: &EditorLayout,
6275 content_origin: gpui::Point<Pixels>,
6276 line_y: Pixels,
6277 row: DisplayRow,
6278 line_height: Pixels,
6279 whitespace_setting: ShowWhitespaceSetting,
6280 window: &mut Window,
6281 cx: &mut App,
6282 ) {
6283 let extract_whitespace_info = |invisible: &Invisible| {
6284 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6285 Invisible::Tab {
6286 line_start_offset,
6287 line_end_offset,
6288 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6289 Invisible::Whitespace { line_offset } => {
6290 (*line_offset, line_offset + 1, &layout.space_invisible)
6291 }
6292 };
6293
6294 let x_offset = self.x_for_index(token_offset);
6295 let invisible_offset =
6296 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6297 let origin = content_origin
6298 + gpui::point(
6299 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6300 line_y,
6301 );
6302
6303 (
6304 [token_offset, token_end_offset],
6305 Box::new(move |window: &mut Window, cx: &mut App| {
6306 invisible_symbol
6307 .paint(origin, line_height, window, cx)
6308 .log_err();
6309 }),
6310 )
6311 };
6312
6313 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6314 match whitespace_setting {
6315 ShowWhitespaceSetting::None => (),
6316 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6317 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6318 let invisible_point = DisplayPoint::new(row, start as u32);
6319 if !selection_ranges
6320 .iter()
6321 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6322 {
6323 return;
6324 }
6325
6326 paint(window, cx);
6327 }),
6328
6329 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6330 // - It is a tab
6331 // - It is adjacent to an edge (start or end)
6332 // - It is adjacent to a whitespace (left or right)
6333 ShowWhitespaceSetting::Boundary => {
6334 // 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
6335 // the above cases.
6336 // Note: We zip in the original `invisibles` to check for tab equality
6337 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6338 for (([start, end], paint), invisible) in
6339 invisible_iter.zip_eq(self.invisibles.iter())
6340 {
6341 let should_render = match (&last_seen, invisible) {
6342 (_, Invisible::Tab { .. }) => true,
6343 (Some((_, last_end, _)), _) => *last_end == start,
6344 _ => false,
6345 };
6346
6347 if should_render || start == 0 || end == self.len {
6348 paint(window, cx);
6349
6350 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6351 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6352 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6353 // Note that we need to make sure that the last one is actually adjacent
6354 if !should_render_last && last_end == start {
6355 paint_last(window, cx);
6356 }
6357 }
6358 }
6359
6360 // Manually render anything within a selection
6361 let invisible_point = DisplayPoint::new(row, start as u32);
6362 if selection_ranges.iter().any(|region| {
6363 region.start <= invisible_point && invisible_point < region.end
6364 }) {
6365 paint(window, cx);
6366 }
6367
6368 last_seen = Some((should_render, end, paint));
6369 }
6370 }
6371 }
6372 }
6373
6374 pub fn x_for_index(&self, index: usize) -> Pixels {
6375 let mut fragment_start_x = Pixels::ZERO;
6376 let mut fragment_start_index = 0;
6377
6378 for fragment in &self.fragments {
6379 match fragment {
6380 LineFragment::Text(shaped_line) => {
6381 let fragment_end_index = fragment_start_index + shaped_line.len;
6382 if index < fragment_end_index {
6383 return fragment_start_x
6384 + shaped_line.x_for_index(index - fragment_start_index);
6385 }
6386 fragment_start_x += shaped_line.width;
6387 fragment_start_index = fragment_end_index;
6388 }
6389 LineFragment::Element { len, size, .. } => {
6390 let fragment_end_index = fragment_start_index + len;
6391 if index < fragment_end_index {
6392 return fragment_start_x;
6393 }
6394 fragment_start_x += size.width;
6395 fragment_start_index = fragment_end_index;
6396 }
6397 }
6398 }
6399
6400 fragment_start_x
6401 }
6402
6403 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6404 let mut fragment_start_x = Pixels::ZERO;
6405 let mut fragment_start_index = 0;
6406
6407 for fragment in &self.fragments {
6408 match fragment {
6409 LineFragment::Text(shaped_line) => {
6410 let fragment_end_x = fragment_start_x + shaped_line.width;
6411 if x < fragment_end_x {
6412 return Some(
6413 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6414 );
6415 }
6416 fragment_start_x = fragment_end_x;
6417 fragment_start_index += shaped_line.len;
6418 }
6419 LineFragment::Element { len, size, .. } => {
6420 let fragment_end_x = fragment_start_x + size.width;
6421 if x < fragment_end_x {
6422 return Some(fragment_start_index);
6423 }
6424 fragment_start_index += len;
6425 fragment_start_x = fragment_end_x;
6426 }
6427 }
6428 }
6429
6430 None
6431 }
6432
6433 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6434 let mut fragment_start_index = 0;
6435
6436 for fragment in &self.fragments {
6437 match fragment {
6438 LineFragment::Text(shaped_line) => {
6439 let fragment_end_index = fragment_start_index + shaped_line.len;
6440 if index < fragment_end_index {
6441 return shaped_line.font_id_for_index(index - fragment_start_index);
6442 }
6443 fragment_start_index = fragment_end_index;
6444 }
6445 LineFragment::Element { len, .. } => {
6446 let fragment_end_index = fragment_start_index + len;
6447 if index < fragment_end_index {
6448 return None;
6449 }
6450 fragment_start_index = fragment_end_index;
6451 }
6452 }
6453 }
6454
6455 None
6456 }
6457}
6458
6459#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6460enum Invisible {
6461 /// A tab character
6462 ///
6463 /// A tab character is internally represented by spaces (configured by the user's tab width)
6464 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6465 /// adjacency checks.
6466 Tab {
6467 line_start_offset: usize,
6468 line_end_offset: usize,
6469 },
6470 Whitespace {
6471 line_offset: usize,
6472 },
6473}
6474
6475impl EditorElement {
6476 /// Returns the rem size to use when rendering the [`EditorElement`].
6477 ///
6478 /// This allows UI elements to scale based on the `buffer_font_size`.
6479 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6480 match self.editor.read(cx).mode {
6481 EditorMode::Full => {
6482 let buffer_font_size = self.style.text.font_size;
6483 match buffer_font_size {
6484 AbsoluteLength::Pixels(pixels) => {
6485 let rem_size_scale = {
6486 // Our default UI font size is 14px on a 16px base scale.
6487 // This means the default UI font size is 0.875rems.
6488 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6489
6490 // We then determine the delta between a single rem and the default font
6491 // size scale.
6492 let default_font_size_delta = 1. - default_font_size_scale;
6493
6494 // Finally, we add this delta to 1rem to get the scale factor that
6495 // should be used to scale up the UI.
6496 1. + default_font_size_delta
6497 };
6498
6499 Some(pixels * rem_size_scale)
6500 }
6501 AbsoluteLength::Rems(rems) => {
6502 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6503 }
6504 }
6505 }
6506 // We currently use single-line and auto-height editors in UI contexts,
6507 // so we don't want to scale everything with the buffer font size, as it
6508 // ends up looking off.
6509 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6510 }
6511 }
6512}
6513
6514impl Element for EditorElement {
6515 type RequestLayoutState = ();
6516 type PrepaintState = EditorLayout;
6517
6518 fn id(&self) -> Option<ElementId> {
6519 None
6520 }
6521
6522 fn request_layout(
6523 &mut self,
6524 _: Option<&GlobalElementId>,
6525 window: &mut Window,
6526 cx: &mut App,
6527 ) -> (gpui::LayoutId, ()) {
6528 let rem_size = self.rem_size(cx);
6529 window.with_rem_size(rem_size, |window| {
6530 self.editor.update(cx, |editor, cx| {
6531 editor.set_style(self.style.clone(), window, cx);
6532
6533 let layout_id = match editor.mode {
6534 EditorMode::SingleLine { auto_width } => {
6535 let rem_size = window.rem_size();
6536
6537 let height = self.style.text.line_height_in_pixels(rem_size);
6538 if auto_width {
6539 let editor_handle = cx.entity().clone();
6540 let style = self.style.clone();
6541 window.request_measured_layout(
6542 Style::default(),
6543 move |_, _, window, cx| {
6544 let editor_snapshot = editor_handle
6545 .update(cx, |editor, cx| editor.snapshot(window, cx));
6546 let line = Self::layout_lines(
6547 DisplayRow(0)..DisplayRow(1),
6548 &editor_snapshot,
6549 &style,
6550 px(f32::MAX),
6551 |_| false, // Single lines never soft wrap
6552 window,
6553 cx,
6554 )
6555 .pop()
6556 .unwrap();
6557
6558 let font_id =
6559 window.text_system().resolve_font(&style.text.font());
6560 let font_size =
6561 style.text.font_size.to_pixels(window.rem_size());
6562 let em_width =
6563 window.text_system().em_width(font_id, font_size).unwrap();
6564
6565 size(line.width + em_width, height)
6566 },
6567 )
6568 } else {
6569 let mut style = Style::default();
6570 style.size.height = height.into();
6571 style.size.width = relative(1.).into();
6572 window.request_layout(style, None, cx)
6573 }
6574 }
6575 EditorMode::AutoHeight { max_lines } => {
6576 let editor_handle = cx.entity().clone();
6577 let max_line_number_width =
6578 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6579 window.request_measured_layout(
6580 Style::default(),
6581 move |known_dimensions, available_space, window, cx| {
6582 editor_handle
6583 .update(cx, |editor, cx| {
6584 compute_auto_height_layout(
6585 editor,
6586 max_lines,
6587 max_line_number_width,
6588 known_dimensions,
6589 available_space.width,
6590 window,
6591 cx,
6592 )
6593 })
6594 .unwrap_or_default()
6595 },
6596 )
6597 }
6598 EditorMode::Full => {
6599 let mut style = Style::default();
6600 style.size.width = relative(1.).into();
6601 style.size.height = relative(1.).into();
6602 window.request_layout(style, None, cx)
6603 }
6604 };
6605
6606 (layout_id, ())
6607 })
6608 })
6609 }
6610
6611 fn prepaint(
6612 &mut self,
6613 _: Option<&GlobalElementId>,
6614 bounds: Bounds<Pixels>,
6615 _: &mut Self::RequestLayoutState,
6616 window: &mut Window,
6617 cx: &mut App,
6618 ) -> Self::PrepaintState {
6619 let text_style = TextStyleRefinement {
6620 font_size: Some(self.style.text.font_size),
6621 line_height: Some(self.style.text.line_height),
6622 ..Default::default()
6623 };
6624 let focus_handle = self.editor.focus_handle(cx);
6625 window.set_view_id(self.editor.entity_id());
6626 window.set_focus_handle(&focus_handle, cx);
6627
6628 let rem_size = self.rem_size(cx);
6629 window.with_rem_size(rem_size, |window| {
6630 window.with_text_style(Some(text_style), |window| {
6631 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6632 let mut snapshot = self
6633 .editor
6634 .update(cx, |editor, cx| editor.snapshot(window, cx));
6635 let style = self.style.clone();
6636
6637 let font_id = window.text_system().resolve_font(&style.text.font());
6638 let font_size = style.text.font_size.to_pixels(window.rem_size());
6639 let line_height = style.text.line_height_in_pixels(window.rem_size());
6640 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6641 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6642
6643 let letter_size = size(em_width, line_height);
6644
6645 let gutter_dimensions = snapshot
6646 .gutter_dimensions(
6647 font_id,
6648 font_size,
6649 self.max_line_number_width(&snapshot, window, cx),
6650 cx,
6651 )
6652 .unwrap_or_default();
6653 let text_width = bounds.size.width - gutter_dimensions.width;
6654
6655 let editor_width =
6656 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6657
6658 snapshot = self.editor.update(cx, |editor, cx| {
6659 editor.last_bounds = Some(bounds);
6660 editor.gutter_dimensions = gutter_dimensions;
6661 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6662
6663 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6664 snapshot
6665 } else {
6666 let wrap_width = match editor.soft_wrap_mode(cx) {
6667 SoftWrap::GitDiff => None,
6668 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6669 SoftWrap::EditorWidth => Some(editor_width),
6670 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6671 SoftWrap::Bounded(column) => {
6672 Some(editor_width.min(column as f32 * em_advance))
6673 }
6674 };
6675
6676 if editor.set_wrap_width(wrap_width, cx) {
6677 editor.snapshot(window, cx)
6678 } else {
6679 snapshot
6680 }
6681 }
6682 });
6683
6684 let wrap_guides = self
6685 .editor
6686 .read(cx)
6687 .wrap_guides(cx)
6688 .iter()
6689 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6690 .collect::<SmallVec<[_; 2]>>();
6691
6692 let hitbox = window.insert_hitbox(bounds, false);
6693 let gutter_hitbox =
6694 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6695 let text_hitbox = window.insert_hitbox(
6696 Bounds {
6697 origin: gutter_hitbox.top_right(),
6698 size: size(text_width, bounds.size.height),
6699 },
6700 false,
6701 );
6702 // Offset the content_bounds from the text_bounds by the gutter margin (which
6703 // is roughly half a character wide) to make hit testing work more like how we want.
6704 let content_origin =
6705 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6706
6707 let scrollbar_bounds =
6708 Bounds::from_corners(content_origin, bounds.bottom_right());
6709
6710 let height_in_lines = scrollbar_bounds.size.height / line_height;
6711
6712 // NOTE: The max row number in the current file, minus one
6713 let max_row = snapshot.max_point().row().as_f32();
6714
6715 // NOTE: The max scroll position for the top of the window
6716 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6717 (max_row - height_in_lines + 1.).max(0.)
6718 } else {
6719 let settings = EditorSettings::get_global(cx);
6720 match settings.scroll_beyond_last_line {
6721 ScrollBeyondLastLine::OnePage => max_row,
6722 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6723 ScrollBeyondLastLine::VerticalScrollMargin => {
6724 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6725 .max(0.)
6726 }
6727 }
6728 };
6729
6730 // TODO: Autoscrolling for both axes
6731 let mut autoscroll_request = None;
6732 let mut autoscroll_containing_element = false;
6733 let mut autoscroll_horizontally = false;
6734 self.editor.update(cx, |editor, cx| {
6735 autoscroll_request = editor.autoscroll_request();
6736 autoscroll_containing_element =
6737 autoscroll_request.is_some() || editor.has_pending_selection();
6738 // TODO: Is this horizontal or vertical?!
6739 autoscroll_horizontally = editor.autoscroll_vertically(
6740 bounds,
6741 line_height,
6742 max_scroll_top,
6743 window,
6744 cx,
6745 );
6746 snapshot = editor.snapshot(window, cx);
6747 });
6748
6749 let mut scroll_position = snapshot.scroll_position();
6750 // The scroll position is a fractional point, the whole number of which represents
6751 // the top of the window in terms of display rows.
6752 let start_row = DisplayRow(scroll_position.y as u32);
6753 let max_row = snapshot.max_point().row();
6754 let end_row = cmp::min(
6755 (scroll_position.y + height_in_lines).ceil() as u32,
6756 max_row.next_row().0,
6757 );
6758 let end_row = DisplayRow(end_row);
6759
6760 let row_infos = snapshot
6761 .row_infos(start_row)
6762 .take((start_row..end_row).len())
6763 .collect::<Vec<RowInfo>>();
6764 let is_row_soft_wrapped = |row: usize| {
6765 row_infos
6766 .get(row)
6767 .map_or(true, |info| info.buffer_row.is_none())
6768 };
6769
6770 let start_anchor = if start_row == Default::default() {
6771 Anchor::min()
6772 } else {
6773 snapshot.buffer_snapshot.anchor_before(
6774 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6775 )
6776 };
6777 let end_anchor = if end_row > max_row {
6778 Anchor::max()
6779 } else {
6780 snapshot.buffer_snapshot.anchor_before(
6781 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6782 )
6783 };
6784
6785 let mut highlighted_rows = self
6786 .editor
6787 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6788
6789 let is_light = cx.theme().appearance().is_light();
6790
6791 for (ix, row_info) in row_infos.iter().enumerate() {
6792 let Some(diff_status) = row_info.diff_status else {
6793 continue;
6794 };
6795
6796 let background_color = match diff_status.kind {
6797 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6798 DiffHunkStatusKind::Deleted => {
6799 cx.theme().colors().version_control_deleted
6800 }
6801 DiffHunkStatusKind::Modified => {
6802 debug_panic!("modified diff status for row info");
6803 continue;
6804 }
6805 };
6806
6807 let unstaged = diff_status.has_secondary_hunk();
6808 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6809
6810 let staged_highlight = LineHighlight {
6811 background: (background_color.opacity(if is_light {
6812 0.08
6813 } else {
6814 0.06
6815 }))
6816 .into(),
6817 border: Some(if is_light {
6818 background_color.opacity(0.48)
6819 } else {
6820 background_color.opacity(0.36)
6821 }),
6822 };
6823
6824 let unstaged_highlight =
6825 solid_background(background_color.opacity(hunk_opacity)).into();
6826
6827 let background = if unstaged {
6828 unstaged_highlight
6829 } else {
6830 staged_highlight
6831 };
6832
6833 highlighted_rows
6834 .entry(start_row + DisplayRow(ix as u32))
6835 .or_insert(background);
6836 }
6837
6838 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6839 start_anchor..end_anchor,
6840 &snapshot.display_snapshot,
6841 cx.theme().colors(),
6842 );
6843 let highlighted_gutter_ranges =
6844 self.editor.read(cx).gutter_highlights_in_range(
6845 start_anchor..end_anchor,
6846 &snapshot.display_snapshot,
6847 cx,
6848 );
6849
6850 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6851 start_anchor..end_anchor,
6852 &snapshot.display_snapshot,
6853 cx,
6854 );
6855
6856 let (local_selections, selected_buffer_ids): (
6857 Vec<Selection<Point>>,
6858 Vec<BufferId>,
6859 ) = self.editor.update(cx, |editor, cx| {
6860 let all_selections = editor.selections.all::<Point>(cx);
6861 let selected_buffer_ids = if editor.is_singleton(cx) {
6862 Vec::new()
6863 } else {
6864 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6865
6866 for selection in all_selections {
6867 for buffer_id in snapshot
6868 .buffer_snapshot
6869 .buffer_ids_for_range(selection.range())
6870 {
6871 if selected_buffer_ids.last() != Some(&buffer_id) {
6872 selected_buffer_ids.push(buffer_id);
6873 }
6874 }
6875 }
6876
6877 selected_buffer_ids
6878 };
6879
6880 let mut selections = editor
6881 .selections
6882 .disjoint_in_range(start_anchor..end_anchor, cx);
6883 selections.extend(editor.selections.pending(cx));
6884
6885 (selections, selected_buffer_ids)
6886 });
6887
6888 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6889 start_anchor,
6890 end_anchor,
6891 &local_selections,
6892 &snapshot,
6893 start_row,
6894 end_row,
6895 window,
6896 cx,
6897 );
6898
6899 let line_numbers = self.layout_line_numbers(
6900 Some(&gutter_hitbox),
6901 gutter_dimensions,
6902 line_height,
6903 scroll_position,
6904 start_row..end_row,
6905 &row_infos,
6906 newest_selection_head,
6907 &snapshot,
6908 window,
6909 cx,
6910 );
6911
6912 let mut crease_toggles =
6913 window.with_element_namespace("crease_toggles", |window| {
6914 self.layout_crease_toggles(
6915 start_row..end_row,
6916 &row_infos,
6917 &active_rows,
6918 &snapshot,
6919 window,
6920 cx,
6921 )
6922 });
6923 let crease_trailers =
6924 window.with_element_namespace("crease_trailers", |window| {
6925 self.layout_crease_trailers(
6926 row_infos.iter().copied(),
6927 &snapshot,
6928 window,
6929 cx,
6930 )
6931 });
6932
6933 let display_hunks = self.layout_gutter_diff_hunks(
6934 line_height,
6935 &gutter_hitbox,
6936 start_row..end_row,
6937 &snapshot,
6938 window,
6939 cx,
6940 );
6941
6942 let mut line_layouts = Self::layout_lines(
6943 start_row..end_row,
6944 &snapshot,
6945 &self.style,
6946 editor_width,
6947 is_row_soft_wrapped,
6948 window,
6949 cx,
6950 );
6951
6952 let longest_line_blame_width = self
6953 .editor
6954 .update(cx, |editor, cx| {
6955 if !editor.show_git_blame_inline {
6956 return None;
6957 }
6958 let blame = editor.blame.as_ref()?;
6959 let blame_entry = blame
6960 .update(cx, |blame, cx| {
6961 let row_infos =
6962 snapshot.row_infos(snapshot.longest_row()).next()?;
6963 blame.blame_for_rows(&[row_infos], cx).next()
6964 })
6965 .flatten()?;
6966 let mut element = render_inline_blame_entry(
6967 self.editor.clone(),
6968 blame,
6969 blame_entry,
6970 &style,
6971 cx,
6972 );
6973 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6974 Some(
6975 element
6976 .layout_as_root(AvailableSpace::min_size(), window, cx)
6977 .width
6978 + inline_blame_padding,
6979 )
6980 })
6981 .unwrap_or(Pixels::ZERO);
6982
6983 let longest_line_width = layout_line(
6984 snapshot.longest_row(),
6985 &snapshot,
6986 &style,
6987 editor_width,
6988 is_row_soft_wrapped,
6989 window,
6990 cx,
6991 )
6992 .width;
6993
6994 let scrollbar_range_data = ScrollbarRangeData::new(
6995 scrollbar_bounds,
6996 letter_size,
6997 &snapshot,
6998 longest_line_width,
6999 longest_line_blame_width,
7000 &style,
7001 editor_width,
7002 cx,
7003 );
7004
7005 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7006 let mut scroll_width = scroll_range_bounds.size.width;
7007
7008 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7009 snapshot.sticky_header_excerpt(start_row)
7010 } else {
7011 None
7012 };
7013 let sticky_header_excerpt_id =
7014 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7015
7016 let blocks = window.with_element_namespace("blocks", |window| {
7017 self.render_blocks(
7018 start_row..end_row,
7019 &snapshot,
7020 &hitbox,
7021 &text_hitbox,
7022 editor_width,
7023 &mut scroll_width,
7024 &gutter_dimensions,
7025 em_width,
7026 gutter_dimensions.full_width(),
7027 line_height,
7028 &line_layouts,
7029 &local_selections,
7030 &selected_buffer_ids,
7031 is_row_soft_wrapped,
7032 sticky_header_excerpt_id,
7033 window,
7034 cx,
7035 )
7036 });
7037 let mut blocks = match blocks {
7038 Ok(blocks) => blocks,
7039 Err(resized_blocks) => {
7040 self.editor.update(cx, |editor, cx| {
7041 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7042 });
7043 return self.prepaint(None, bounds, &mut (), window, cx);
7044 }
7045 };
7046
7047 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7048 window.with_element_namespace("blocks", |window| {
7049 self.layout_sticky_buffer_header(
7050 sticky_header_excerpt,
7051 scroll_position.y,
7052 line_height,
7053 &snapshot,
7054 &hitbox,
7055 &selected_buffer_ids,
7056 window,
7057 cx,
7058 )
7059 })
7060 });
7061
7062 let start_buffer_row =
7063 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7064 let end_buffer_row =
7065 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7066
7067 let scroll_max = point(
7068 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7069 max_row.as_f32(),
7070 );
7071
7072 self.editor.update(cx, |editor, cx| {
7073 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7074
7075 let autoscrolled = if autoscroll_horizontally {
7076 editor.autoscroll_horizontally(
7077 start_row,
7078 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7079 scroll_width,
7080 em_width,
7081 &line_layouts,
7082 cx,
7083 )
7084 } else {
7085 false
7086 };
7087
7088 if clamped || autoscrolled {
7089 snapshot = editor.snapshot(window, cx);
7090 scroll_position = snapshot.scroll_position();
7091 }
7092 });
7093
7094 let scroll_pixel_position = point(
7095 scroll_position.x * em_width,
7096 scroll_position.y * line_height,
7097 );
7098
7099 let indent_guides = self.layout_indent_guides(
7100 content_origin,
7101 text_hitbox.origin,
7102 start_buffer_row..end_buffer_row,
7103 scroll_pixel_position,
7104 line_height,
7105 &snapshot,
7106 window,
7107 cx,
7108 );
7109
7110 let crease_trailers =
7111 window.with_element_namespace("crease_trailers", |window| {
7112 self.prepaint_crease_trailers(
7113 crease_trailers,
7114 &line_layouts,
7115 line_height,
7116 content_origin,
7117 scroll_pixel_position,
7118 em_width,
7119 window,
7120 cx,
7121 )
7122 });
7123
7124 let (inline_completion_popover, inline_completion_popover_origin) = self
7125 .editor
7126 .update(cx, |editor, cx| {
7127 editor.render_edit_prediction_popover(
7128 &text_hitbox.bounds,
7129 content_origin,
7130 &snapshot,
7131 start_row..end_row,
7132 scroll_position.y,
7133 scroll_position.y + height_in_lines,
7134 &line_layouts,
7135 line_height,
7136 scroll_pixel_position,
7137 newest_selection_head,
7138 editor_width,
7139 &style,
7140 window,
7141 cx,
7142 )
7143 })
7144 .unzip();
7145
7146 let mut inline_diagnostics = self.layout_inline_diagnostics(
7147 &line_layouts,
7148 &crease_trailers,
7149 content_origin,
7150 scroll_pixel_position,
7151 inline_completion_popover_origin,
7152 start_row,
7153 end_row,
7154 line_height,
7155 em_width,
7156 &style,
7157 window,
7158 cx,
7159 );
7160
7161 let mut inline_blame = None;
7162 if let Some(newest_selection_head) = newest_selection_head {
7163 let display_row = newest_selection_head.row();
7164 if (start_row..end_row).contains(&display_row) {
7165 let line_ix = display_row.minus(start_row) as usize;
7166 let row_info = &row_infos[line_ix];
7167 let line_layout = &line_layouts[line_ix];
7168 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7169 inline_blame = self.layout_inline_blame(
7170 display_row,
7171 row_info,
7172 line_layout,
7173 crease_trailer_layout,
7174 em_width,
7175 content_origin,
7176 scroll_pixel_position,
7177 line_height,
7178 window,
7179 cx,
7180 );
7181 if inline_blame.is_some() {
7182 // Blame overrides inline diagnostics
7183 inline_diagnostics.remove(&display_row);
7184 }
7185 }
7186 }
7187
7188 let blamed_display_rows = self.layout_blame_entries(
7189 &row_infos,
7190 em_width,
7191 scroll_position,
7192 line_height,
7193 &gutter_hitbox,
7194 gutter_dimensions.git_blame_entries_width,
7195 window,
7196 cx,
7197 );
7198
7199 let scroll_max = point(
7200 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7201 max_scroll_top,
7202 );
7203
7204 self.editor.update(cx, |editor, cx| {
7205 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7206
7207 let autoscrolled = if autoscroll_horizontally {
7208 editor.autoscroll_horizontally(
7209 start_row,
7210 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7211 scroll_width,
7212 em_width,
7213 &line_layouts,
7214 cx,
7215 )
7216 } else {
7217 false
7218 };
7219
7220 if clamped || autoscrolled {
7221 snapshot = editor.snapshot(window, cx);
7222 scroll_position = snapshot.scroll_position();
7223 }
7224 });
7225
7226 let line_elements = self.prepaint_lines(
7227 start_row,
7228 &mut line_layouts,
7229 line_height,
7230 scroll_pixel_position,
7231 content_origin,
7232 window,
7233 cx,
7234 );
7235
7236 let mut block_start_rows = HashSet::default();
7237
7238 window.with_element_namespace("blocks", |window| {
7239 self.layout_blocks(
7240 &mut blocks,
7241 &mut block_start_rows,
7242 &hitbox,
7243 line_height,
7244 scroll_pixel_position,
7245 window,
7246 cx,
7247 );
7248 });
7249
7250 let cursors = self.collect_cursors(&snapshot, cx);
7251 let visible_row_range = start_row..end_row;
7252 let non_visible_cursors = cursors
7253 .iter()
7254 .any(|c| !visible_row_range.contains(&c.0.row()));
7255
7256 let visible_cursors = self.layout_visible_cursors(
7257 &snapshot,
7258 &selections,
7259 &block_start_rows,
7260 start_row..end_row,
7261 &line_layouts,
7262 &text_hitbox,
7263 content_origin,
7264 scroll_position,
7265 scroll_pixel_position,
7266 line_height,
7267 em_width,
7268 em_advance,
7269 autoscroll_containing_element,
7270 window,
7271 cx,
7272 );
7273
7274 let scrollbars_layout = self.layout_scrollbars(
7275 &snapshot,
7276 scrollbar_range_data,
7277 scroll_position,
7278 non_visible_cursors,
7279 window,
7280 cx,
7281 );
7282
7283 let gutter_settings = EditorSettings::get_global(cx).gutter;
7284
7285 let mut code_actions_indicator = None;
7286 if let Some(newest_selection_head) = newest_selection_head {
7287 let newest_selection_point =
7288 newest_selection_head.to_point(&snapshot.display_snapshot);
7289
7290 if (start_row..end_row).contains(&newest_selection_head.row()) {
7291 self.layout_cursor_popovers(
7292 line_height,
7293 &text_hitbox,
7294 content_origin,
7295 start_row,
7296 scroll_pixel_position,
7297 &line_layouts,
7298 newest_selection_head,
7299 newest_selection_point,
7300 &style,
7301 window,
7302 cx,
7303 );
7304
7305 let show_code_actions = snapshot
7306 .show_code_actions
7307 .unwrap_or(gutter_settings.code_actions);
7308 if show_code_actions {
7309 let newest_selection_point =
7310 newest_selection_head.to_point(&snapshot.display_snapshot);
7311 if !snapshot
7312 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7313 {
7314 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7315 MultiBufferRow(newest_selection_point.row),
7316 );
7317 if let Some((buffer, range)) = buffer {
7318 let buffer_id = buffer.remote_id();
7319 let row = range.start.row;
7320 let has_test_indicator = self
7321 .editor
7322 .read(cx)
7323 .tasks
7324 .contains_key(&(buffer_id, row));
7325
7326 if !has_test_indicator {
7327 code_actions_indicator = self
7328 .layout_code_actions_indicator(
7329 line_height,
7330 newest_selection_head,
7331 scroll_pixel_position,
7332 &gutter_dimensions,
7333 &gutter_hitbox,
7334 &display_hunks,
7335 window,
7336 cx,
7337 );
7338 }
7339 }
7340 }
7341 }
7342 }
7343 }
7344
7345 self.layout_gutter_menu(
7346 line_height,
7347 &text_hitbox,
7348 content_origin,
7349 scroll_pixel_position,
7350 gutter_dimensions.width - gutter_dimensions.left_padding,
7351 window,
7352 cx,
7353 );
7354
7355 let test_indicators = if gutter_settings.runnables {
7356 self.layout_run_indicators(
7357 line_height,
7358 start_row..end_row,
7359 scroll_pixel_position,
7360 &gutter_dimensions,
7361 &gutter_hitbox,
7362 &display_hunks,
7363 &snapshot,
7364 window,
7365 cx,
7366 )
7367 } else {
7368 Vec::new()
7369 };
7370
7371 self.layout_signature_help(
7372 &hitbox,
7373 content_origin,
7374 scroll_pixel_position,
7375 newest_selection_head,
7376 start_row,
7377 &line_layouts,
7378 line_height,
7379 em_width,
7380 window,
7381 cx,
7382 );
7383
7384 if !cx.has_active_drag() {
7385 self.layout_hover_popovers(
7386 &snapshot,
7387 &hitbox,
7388 &text_hitbox,
7389 start_row..end_row,
7390 content_origin,
7391 scroll_pixel_position,
7392 &line_layouts,
7393 line_height,
7394 em_width,
7395 window,
7396 cx,
7397 );
7398 }
7399
7400 let mouse_context_menu = self.layout_mouse_context_menu(
7401 &snapshot,
7402 start_row..end_row,
7403 content_origin,
7404 window,
7405 cx,
7406 );
7407
7408 window.with_element_namespace("crease_toggles", |window| {
7409 self.prepaint_crease_toggles(
7410 &mut crease_toggles,
7411 line_height,
7412 &gutter_dimensions,
7413 gutter_settings,
7414 scroll_pixel_position,
7415 &gutter_hitbox,
7416 window,
7417 cx,
7418 )
7419 });
7420
7421 let invisible_symbol_font_size = font_size / 2.;
7422 let tab_invisible = window
7423 .text_system()
7424 .shape_line(
7425 "→".into(),
7426 invisible_symbol_font_size,
7427 &[TextRun {
7428 len: "→".len(),
7429 font: self.style.text.font(),
7430 color: cx.theme().colors().editor_invisible,
7431 background_color: None,
7432 underline: None,
7433 strikethrough: None,
7434 }],
7435 )
7436 .unwrap();
7437 let space_invisible = window
7438 .text_system()
7439 .shape_line(
7440 "•".into(),
7441 invisible_symbol_font_size,
7442 &[TextRun {
7443 len: "•".len(),
7444 font: self.style.text.font(),
7445 color: cx.theme().colors().editor_invisible,
7446 background_color: None,
7447 underline: None,
7448 strikethrough: None,
7449 }],
7450 )
7451 .unwrap();
7452
7453 let mode = snapshot.mode;
7454
7455 let position_map = Rc::new(PositionMap {
7456 size: bounds.size,
7457 visible_row_range,
7458 scroll_pixel_position,
7459 scroll_max,
7460 line_layouts,
7461 line_height,
7462 em_width,
7463 em_advance,
7464 snapshot,
7465 gutter_hitbox: gutter_hitbox.clone(),
7466 text_hitbox: text_hitbox.clone(),
7467 });
7468
7469 self.editor.update(cx, |editor, _| {
7470 editor.last_position_map = Some(position_map.clone())
7471 });
7472
7473 let diff_hunk_controls = self.layout_diff_hunk_controls(
7474 start_row..end_row,
7475 &row_infos,
7476 &text_hitbox,
7477 &position_map,
7478 newest_selection_head,
7479 line_height,
7480 scroll_pixel_position,
7481 &display_hunks,
7482 self.editor.clone(),
7483 window,
7484 cx,
7485 );
7486
7487 EditorLayout {
7488 mode,
7489 position_map,
7490 visible_display_row_range: start_row..end_row,
7491 wrap_guides,
7492 indent_guides,
7493 hitbox,
7494 gutter_hitbox,
7495 display_hunks,
7496 content_origin,
7497 scrollbars_layout,
7498 active_rows,
7499 highlighted_rows,
7500 highlighted_ranges,
7501 highlighted_gutter_ranges,
7502 redacted_ranges,
7503 line_elements,
7504 line_numbers,
7505 blamed_display_rows,
7506 inline_diagnostics,
7507 inline_blame,
7508 blocks,
7509 cursors,
7510 visible_cursors,
7511 selections,
7512 inline_completion_popover,
7513 diff_hunk_controls,
7514 mouse_context_menu,
7515 test_indicators,
7516 code_actions_indicator,
7517 crease_toggles,
7518 crease_trailers,
7519 tab_invisible,
7520 space_invisible,
7521 sticky_buffer_header,
7522 }
7523 })
7524 })
7525 })
7526 }
7527
7528 fn paint(
7529 &mut self,
7530 _: Option<&GlobalElementId>,
7531 bounds: Bounds<gpui::Pixels>,
7532 _: &mut Self::RequestLayoutState,
7533 layout: &mut Self::PrepaintState,
7534 window: &mut Window,
7535 cx: &mut App,
7536 ) {
7537 let focus_handle = self.editor.focus_handle(cx);
7538 let key_context = self
7539 .editor
7540 .update(cx, |editor, cx| editor.key_context(window, cx));
7541
7542 window.set_key_context(key_context);
7543 window.handle_input(
7544 &focus_handle,
7545 ElementInputHandler::new(bounds, self.editor.clone()),
7546 cx,
7547 );
7548 self.register_actions(window, cx);
7549 self.register_key_listeners(window, cx, layout);
7550
7551 let text_style = TextStyleRefinement {
7552 font_size: Some(self.style.text.font_size),
7553 line_height: Some(self.style.text.line_height),
7554 ..Default::default()
7555 };
7556 let rem_size = self.rem_size(cx);
7557 window.with_rem_size(rem_size, |window| {
7558 window.with_text_style(Some(text_style), |window| {
7559 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7560 self.paint_mouse_listeners(layout, window, cx);
7561 self.paint_background(layout, window, cx);
7562 self.paint_indent_guides(layout, window, cx);
7563
7564 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7565 self.paint_blamed_display_rows(layout, window, cx);
7566 self.paint_line_numbers(layout, window, cx);
7567 }
7568
7569 self.paint_text(layout, window, cx);
7570
7571 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7572 self.paint_gutter_highlights(layout, window, cx);
7573 self.paint_gutter_indicators(layout, window, cx);
7574 }
7575
7576 if !layout.blocks.is_empty() {
7577 window.with_element_namespace("blocks", |window| {
7578 self.paint_blocks(layout, window, cx);
7579 });
7580 }
7581
7582 window.with_element_namespace("blocks", |window| {
7583 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7584 sticky_header.paint(window, cx)
7585 }
7586 });
7587
7588 self.paint_scrollbars(layout, window, cx);
7589 self.paint_inline_completion_popover(layout, window, cx);
7590 self.paint_mouse_context_menu(layout, window, cx);
7591 });
7592 })
7593 })
7594 }
7595}
7596
7597pub(super) fn gutter_bounds(
7598 editor_bounds: Bounds<Pixels>,
7599 gutter_dimensions: GutterDimensions,
7600) -> Bounds<Pixels> {
7601 Bounds {
7602 origin: editor_bounds.origin,
7603 size: size(gutter_dimensions.width, editor_bounds.size.height),
7604 }
7605}
7606
7607struct ScrollbarRangeData {
7608 scrollbar_bounds: Bounds<Pixels>,
7609 scroll_range: Bounds<Pixels>,
7610 letter_size: Size<Pixels>,
7611}
7612
7613impl ScrollbarRangeData {
7614 pub fn new(
7615 scrollbar_bounds: Bounds<Pixels>,
7616 letter_size: Size<Pixels>,
7617 snapshot: &EditorSnapshot,
7618 longest_line_width: Pixels,
7619 longest_line_blame_width: Pixels,
7620 style: &EditorStyle,
7621 editor_width: Pixels,
7622 cx: &mut App,
7623 ) -> ScrollbarRangeData {
7624 // TODO: Simplify this function down, it requires a lot of parameters
7625 let max_row = snapshot.max_point().row();
7626 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7627
7628 let settings = EditorSettings::get_global(cx);
7629 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7630 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7631 ScrollBeyondLastLine::Off => px(1.),
7632 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7633 };
7634
7635 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7636 letter_size.width + style.scrollbar_width
7637 } else {
7638 px(0.0)
7639 };
7640
7641 let overscroll = size(
7642 right_margin + longest_line_blame_width,
7643 letter_size.height * scroll_beyond_last_line,
7644 );
7645
7646 let scroll_range = Bounds {
7647 origin: scrollbar_bounds.origin,
7648 size: text_bounds_size + overscroll,
7649 };
7650
7651 ScrollbarRangeData {
7652 scrollbar_bounds,
7653 scroll_range,
7654 letter_size,
7655 }
7656 }
7657}
7658
7659impl IntoElement for EditorElement {
7660 type Element = Self;
7661
7662 fn into_element(self) -> Self::Element {
7663 self
7664 }
7665}
7666
7667pub struct EditorLayout {
7668 position_map: Rc<PositionMap>,
7669 hitbox: Hitbox,
7670 gutter_hitbox: Hitbox,
7671 content_origin: gpui::Point<Pixels>,
7672 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7673 mode: EditorMode,
7674 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7675 indent_guides: Option<Vec<IndentGuideLayout>>,
7676 visible_display_row_range: Range<DisplayRow>,
7677 active_rows: BTreeMap<DisplayRow, bool>,
7678 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7679 line_elements: SmallVec<[AnyElement; 1]>,
7680 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7681 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7682 blamed_display_rows: Option<Vec<AnyElement>>,
7683 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7684 inline_blame: Option<AnyElement>,
7685 blocks: Vec<BlockLayout>,
7686 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7687 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7688 redacted_ranges: Vec<Range<DisplayPoint>>,
7689 cursors: Vec<(DisplayPoint, Hsla)>,
7690 visible_cursors: Vec<CursorLayout>,
7691 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7692 code_actions_indicator: Option<AnyElement>,
7693 test_indicators: Vec<AnyElement>,
7694 crease_toggles: Vec<Option<AnyElement>>,
7695 diff_hunk_controls: Vec<AnyElement>,
7696 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7697 inline_completion_popover: Option<AnyElement>,
7698 mouse_context_menu: Option<AnyElement>,
7699 tab_invisible: ShapedLine,
7700 space_invisible: ShapedLine,
7701 sticky_buffer_header: Option<AnyElement>,
7702}
7703
7704impl EditorLayout {
7705 fn line_end_overshoot(&self) -> Pixels {
7706 0.15 * self.position_map.line_height
7707 }
7708}
7709
7710struct LineNumberLayout {
7711 shaped_line: ShapedLine,
7712 hitbox: Option<Hitbox>,
7713 display_row: DisplayRow,
7714}
7715
7716struct ColoredRange<T> {
7717 start: T,
7718 end: T,
7719 color: Hsla,
7720}
7721
7722#[derive(Clone)]
7723struct ScrollbarLayout {
7724 hitbox: Hitbox,
7725 visible_range: Range<f32>,
7726 visible: bool,
7727 text_unit_size: Pixels,
7728 thumb_size: Pixels,
7729 axis: Axis,
7730}
7731
7732impl ScrollbarLayout {
7733 const BORDER_WIDTH: Pixels = px(1.0);
7734 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7735 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7736 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7737
7738 fn thumb_bounds(&self) -> Bounds<Pixels> {
7739 match self.axis {
7740 Axis::Vertical => {
7741 let thumb_top = self.y_for_row(self.visible_range.start);
7742 let thumb_bottom = thumb_top + self.thumb_size;
7743 Bounds::from_corners(
7744 point(self.hitbox.left(), thumb_top),
7745 point(self.hitbox.right(), thumb_bottom),
7746 )
7747 }
7748 Axis::Horizontal => {
7749 let thumb_left =
7750 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7751 let thumb_right = thumb_left + self.thumb_size;
7752 Bounds::from_corners(
7753 point(thumb_left, self.hitbox.top()),
7754 point(thumb_right, self.hitbox.bottom()),
7755 )
7756 }
7757 }
7758 }
7759
7760 fn y_for_row(&self, row: f32) -> Pixels {
7761 self.hitbox.top() + row * self.text_unit_size
7762 }
7763
7764 fn marker_quads_for_ranges(
7765 &self,
7766 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7767 column: Option<usize>,
7768 ) -> Vec<PaintQuad> {
7769 struct MinMax {
7770 min: Pixels,
7771 max: Pixels,
7772 }
7773 let (x_range, height_limit) = if let Some(column) = column {
7774 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7775 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7776 let end = start + column_width;
7777 (
7778 Range { start, end },
7779 MinMax {
7780 min: Self::MIN_MARKER_HEIGHT,
7781 max: px(f32::MAX),
7782 },
7783 )
7784 } else {
7785 (
7786 Range {
7787 start: Self::BORDER_WIDTH,
7788 end: self.hitbox.size.width,
7789 },
7790 MinMax {
7791 min: Self::LINE_MARKER_HEIGHT,
7792 max: Self::LINE_MARKER_HEIGHT,
7793 },
7794 )
7795 };
7796
7797 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7798 let mut pixel_ranges = row_ranges
7799 .into_iter()
7800 .map(|range| {
7801 let start_y = row_to_y(range.start);
7802 let end_y = row_to_y(range.end)
7803 + self
7804 .text_unit_size
7805 .max(height_limit.min)
7806 .min(height_limit.max);
7807 ColoredRange {
7808 start: start_y,
7809 end: end_y,
7810 color: range.color,
7811 }
7812 })
7813 .peekable();
7814
7815 let mut quads = Vec::new();
7816 while let Some(mut pixel_range) = pixel_ranges.next() {
7817 while let Some(next_pixel_range) = pixel_ranges.peek() {
7818 if pixel_range.end >= next_pixel_range.start - px(1.0)
7819 && pixel_range.color == next_pixel_range.color
7820 {
7821 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7822 pixel_ranges.next();
7823 } else {
7824 break;
7825 }
7826 }
7827
7828 let bounds = Bounds::from_corners(
7829 point(x_range.start, pixel_range.start),
7830 point(x_range.end, pixel_range.end),
7831 );
7832 quads.push(quad(
7833 bounds,
7834 Corners::default(),
7835 pixel_range.color,
7836 Edges::default(),
7837 Hsla::transparent_black(),
7838 ));
7839 }
7840
7841 quads
7842 }
7843}
7844
7845struct CreaseTrailerLayout {
7846 element: AnyElement,
7847 bounds: Bounds<Pixels>,
7848}
7849
7850pub(crate) struct PositionMap {
7851 pub size: Size<Pixels>,
7852 pub line_height: Pixels,
7853 pub scroll_pixel_position: gpui::Point<Pixels>,
7854 pub scroll_max: gpui::Point<f32>,
7855 pub em_width: Pixels,
7856 pub em_advance: Pixels,
7857 pub visible_row_range: Range<DisplayRow>,
7858 pub line_layouts: Vec<LineWithInvisibles>,
7859 pub snapshot: EditorSnapshot,
7860 pub text_hitbox: Hitbox,
7861 pub gutter_hitbox: Hitbox,
7862}
7863
7864#[derive(Debug, Copy, Clone)]
7865pub struct PointForPosition {
7866 pub previous_valid: DisplayPoint,
7867 pub next_valid: DisplayPoint,
7868 pub exact_unclipped: DisplayPoint,
7869 pub column_overshoot_after_line_end: u32,
7870}
7871
7872impl PointForPosition {
7873 pub fn as_valid(&self) -> Option<DisplayPoint> {
7874 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7875 Some(self.previous_valid)
7876 } else {
7877 None
7878 }
7879 }
7880}
7881
7882impl PositionMap {
7883 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7884 let text_bounds = self.text_hitbox.bounds;
7885 let scroll_position = self.snapshot.scroll_position();
7886 let position = position - text_bounds.origin;
7887 let y = position.y.max(px(0.)).min(self.size.height);
7888 let x = position.x + (scroll_position.x * self.em_width);
7889 let row = ((y / self.line_height) + scroll_position.y) as u32;
7890
7891 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7892 .line_layouts
7893 .get(row as usize - scroll_position.y as usize)
7894 {
7895 if let Some(ix) = line.index_for_x(x) {
7896 (ix as u32, px(0.))
7897 } else {
7898 (line.len as u32, px(0.).max(x - line.width))
7899 }
7900 } else {
7901 (0, x)
7902 };
7903
7904 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7905 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7906 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7907
7908 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7909 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7910 PointForPosition {
7911 previous_valid,
7912 next_valid,
7913 exact_unclipped,
7914 column_overshoot_after_line_end,
7915 }
7916 }
7917}
7918
7919struct BlockLayout {
7920 id: BlockId,
7921 row: Option<DisplayRow>,
7922 element: AnyElement,
7923 available_space: Size<AvailableSpace>,
7924 style: BlockStyle,
7925}
7926
7927pub fn layout_line(
7928 row: DisplayRow,
7929 snapshot: &EditorSnapshot,
7930 style: &EditorStyle,
7931 text_width: Pixels,
7932 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7933 window: &mut Window,
7934 cx: &mut App,
7935) -> LineWithInvisibles {
7936 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7937 LineWithInvisibles::from_chunks(
7938 chunks,
7939 &style,
7940 MAX_LINE_LEN,
7941 1,
7942 snapshot.mode,
7943 text_width,
7944 is_row_soft_wrapped,
7945 window,
7946 cx,
7947 )
7948 .pop()
7949 .unwrap()
7950}
7951
7952#[derive(Debug)]
7953pub struct IndentGuideLayout {
7954 origin: gpui::Point<Pixels>,
7955 length: Pixels,
7956 single_indent_width: Pixels,
7957 depth: u32,
7958 active: bool,
7959 settings: IndentGuideSettings,
7960}
7961
7962pub struct CursorLayout {
7963 origin: gpui::Point<Pixels>,
7964 block_width: Pixels,
7965 line_height: Pixels,
7966 color: Hsla,
7967 shape: CursorShape,
7968 block_text: Option<ShapedLine>,
7969 cursor_name: Option<AnyElement>,
7970}
7971
7972#[derive(Debug)]
7973pub struct CursorName {
7974 string: SharedString,
7975 color: Hsla,
7976 is_top_row: bool,
7977}
7978
7979impl CursorLayout {
7980 pub fn new(
7981 origin: gpui::Point<Pixels>,
7982 block_width: Pixels,
7983 line_height: Pixels,
7984 color: Hsla,
7985 shape: CursorShape,
7986 block_text: Option<ShapedLine>,
7987 ) -> CursorLayout {
7988 CursorLayout {
7989 origin,
7990 block_width,
7991 line_height,
7992 color,
7993 shape,
7994 block_text,
7995 cursor_name: None,
7996 }
7997 }
7998
7999 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8000 Bounds {
8001 origin: self.origin + origin,
8002 size: size(self.block_width, self.line_height),
8003 }
8004 }
8005
8006 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8007 match self.shape {
8008 CursorShape::Bar => Bounds {
8009 origin: self.origin + origin,
8010 size: size(px(2.0), self.line_height),
8011 },
8012 CursorShape::Block | CursorShape::Hollow => Bounds {
8013 origin: self.origin + origin,
8014 size: size(self.block_width, self.line_height),
8015 },
8016 CursorShape::Underline => Bounds {
8017 origin: self.origin
8018 + origin
8019 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8020 size: size(self.block_width, px(2.0)),
8021 },
8022 }
8023 }
8024
8025 pub fn layout(
8026 &mut self,
8027 origin: gpui::Point<Pixels>,
8028 cursor_name: Option<CursorName>,
8029 window: &mut Window,
8030 cx: &mut App,
8031 ) {
8032 if let Some(cursor_name) = cursor_name {
8033 let bounds = self.bounds(origin);
8034 let text_size = self.line_height / 1.5;
8035
8036 let name_origin = if cursor_name.is_top_row {
8037 point(bounds.right() - px(1.), bounds.top())
8038 } else {
8039 match self.shape {
8040 CursorShape::Bar => point(
8041 bounds.right() - px(2.),
8042 bounds.top() - text_size / 2. - px(1.),
8043 ),
8044 _ => point(
8045 bounds.right() - px(1.),
8046 bounds.top() - text_size / 2. - px(1.),
8047 ),
8048 }
8049 };
8050 let mut name_element = div()
8051 .bg(self.color)
8052 .text_size(text_size)
8053 .px_0p5()
8054 .line_height(text_size + px(2.))
8055 .text_color(cursor_name.color)
8056 .child(cursor_name.string.clone())
8057 .into_any_element();
8058
8059 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8060
8061 self.cursor_name = Some(name_element);
8062 }
8063 }
8064
8065 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8066 let bounds = self.bounds(origin);
8067
8068 //Draw background or border quad
8069 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8070 outline(bounds, self.color)
8071 } else {
8072 fill(bounds, self.color)
8073 };
8074
8075 if let Some(name) = &mut self.cursor_name {
8076 name.paint(window, cx);
8077 }
8078
8079 window.paint_quad(cursor);
8080
8081 if let Some(block_text) = &self.block_text {
8082 block_text
8083 .paint(self.origin + origin, self.line_height, window, cx)
8084 .log_err();
8085 }
8086 }
8087
8088 pub fn shape(&self) -> CursorShape {
8089 self.shape
8090 }
8091}
8092
8093#[derive(Debug)]
8094pub struct HighlightedRange {
8095 pub start_y: Pixels,
8096 pub line_height: Pixels,
8097 pub lines: Vec<HighlightedRangeLine>,
8098 pub color: Hsla,
8099 pub corner_radius: Pixels,
8100}
8101
8102#[derive(Debug)]
8103pub struct HighlightedRangeLine {
8104 pub start_x: Pixels,
8105 pub end_x: Pixels,
8106}
8107
8108impl HighlightedRange {
8109 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8110 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8111 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8112 self.paint_lines(
8113 self.start_y + self.line_height,
8114 &self.lines[1..],
8115 bounds,
8116 window,
8117 );
8118 } else {
8119 self.paint_lines(self.start_y, &self.lines, bounds, window);
8120 }
8121 }
8122
8123 fn paint_lines(
8124 &self,
8125 start_y: Pixels,
8126 lines: &[HighlightedRangeLine],
8127 _bounds: Bounds<Pixels>,
8128 window: &mut Window,
8129 ) {
8130 if lines.is_empty() {
8131 return;
8132 }
8133
8134 let first_line = lines.first().unwrap();
8135 let last_line = lines.last().unwrap();
8136
8137 let first_top_left = point(first_line.start_x, start_y);
8138 let first_top_right = point(first_line.end_x, start_y);
8139
8140 let curve_height = point(Pixels::ZERO, self.corner_radius);
8141 let curve_width = |start_x: Pixels, end_x: Pixels| {
8142 let max = (end_x - start_x) / 2.;
8143 let width = if max < self.corner_radius {
8144 max
8145 } else {
8146 self.corner_radius
8147 };
8148
8149 point(width, Pixels::ZERO)
8150 };
8151
8152 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8153 let mut builder = gpui::PathBuilder::fill();
8154 builder.move_to(first_top_right - top_curve_width);
8155 builder.curve_to(first_top_right + curve_height, first_top_right);
8156
8157 let mut iter = lines.iter().enumerate().peekable();
8158 while let Some((ix, line)) = iter.next() {
8159 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8160
8161 if let Some((_, next_line)) = iter.peek() {
8162 let next_top_right = point(next_line.end_x, bottom_right.y);
8163
8164 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8165 Ordering::Equal => {
8166 builder.line_to(bottom_right);
8167 }
8168 Ordering::Less => {
8169 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8170 builder.line_to(bottom_right - curve_height);
8171 if self.corner_radius > Pixels::ZERO {
8172 builder.curve_to(bottom_right - curve_width, bottom_right);
8173 }
8174 builder.line_to(next_top_right + curve_width);
8175 if self.corner_radius > Pixels::ZERO {
8176 builder.curve_to(next_top_right + curve_height, next_top_right);
8177 }
8178 }
8179 Ordering::Greater => {
8180 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8181 builder.line_to(bottom_right - curve_height);
8182 if self.corner_radius > Pixels::ZERO {
8183 builder.curve_to(bottom_right + curve_width, bottom_right);
8184 }
8185 builder.line_to(next_top_right - curve_width);
8186 if self.corner_radius > Pixels::ZERO {
8187 builder.curve_to(next_top_right + curve_height, next_top_right);
8188 }
8189 }
8190 }
8191 } else {
8192 let curve_width = curve_width(line.start_x, line.end_x);
8193 builder.line_to(bottom_right - curve_height);
8194 if self.corner_radius > Pixels::ZERO {
8195 builder.curve_to(bottom_right - curve_width, bottom_right);
8196 }
8197
8198 let bottom_left = point(line.start_x, bottom_right.y);
8199 builder.line_to(bottom_left + curve_width);
8200 if self.corner_radius > Pixels::ZERO {
8201 builder.curve_to(bottom_left - curve_height, bottom_left);
8202 }
8203 }
8204 }
8205
8206 if first_line.start_x > last_line.start_x {
8207 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8208 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8209 builder.line_to(second_top_left + curve_height);
8210 if self.corner_radius > Pixels::ZERO {
8211 builder.curve_to(second_top_left + curve_width, second_top_left);
8212 }
8213 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8214 builder.line_to(first_bottom_left - curve_width);
8215 if self.corner_radius > Pixels::ZERO {
8216 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8217 }
8218 }
8219
8220 builder.line_to(first_top_left + curve_height);
8221 if self.corner_radius > Pixels::ZERO {
8222 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8223 }
8224 builder.line_to(first_top_right - top_curve_width);
8225
8226 if let Ok(path) = builder.build() {
8227 window.paint_path(path, self.color);
8228 }
8229 }
8230}
8231
8232enum CursorPopoverType {
8233 CodeContextMenu,
8234 EditPrediction,
8235}
8236
8237pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8238 (delta.pow(1.5) / 100.0).into()
8239}
8240
8241fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8242 (delta.pow(1.2) / 300.0).into()
8243}
8244
8245pub fn register_action<T: Action>(
8246 editor: &Entity<Editor>,
8247 window: &mut Window,
8248 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8249) {
8250 let editor = editor.clone();
8251 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8252 let action = action.downcast_ref().unwrap();
8253 if phase == DispatchPhase::Bubble {
8254 editor.update(cx, |editor, cx| {
8255 listener(editor, action, window, cx);
8256 })
8257 }
8258 })
8259}
8260
8261fn compute_auto_height_layout(
8262 editor: &mut Editor,
8263 max_lines: usize,
8264 max_line_number_width: Pixels,
8265 known_dimensions: Size<Option<Pixels>>,
8266 available_width: AvailableSpace,
8267 window: &mut Window,
8268 cx: &mut Context<Editor>,
8269) -> Option<Size<Pixels>> {
8270 let width = known_dimensions.width.or({
8271 if let AvailableSpace::Definite(available_width) = available_width {
8272 Some(available_width)
8273 } else {
8274 None
8275 }
8276 })?;
8277 if let Some(height) = known_dimensions.height {
8278 return Some(size(width, height));
8279 }
8280
8281 let style = editor.style.as_ref().unwrap();
8282 let font_id = window.text_system().resolve_font(&style.text.font());
8283 let font_size = style.text.font_size.to_pixels(window.rem_size());
8284 let line_height = style.text.line_height_in_pixels(window.rem_size());
8285 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8286
8287 let mut snapshot = editor.snapshot(window, cx);
8288 let gutter_dimensions = snapshot
8289 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8290 .unwrap_or_default();
8291
8292 editor.gutter_dimensions = gutter_dimensions;
8293 let text_width = width - gutter_dimensions.width;
8294 let overscroll = size(em_width, px(0.));
8295
8296 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8297 if editor.set_wrap_width(Some(editor_width), cx) {
8298 snapshot = editor.snapshot(window, cx);
8299 }
8300
8301 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8302 let height = scroll_height
8303 .max(line_height)
8304 .min(line_height * max_lines as f32);
8305
8306 Some(size(width, height))
8307}
8308
8309#[cfg(test)]
8310mod tests {
8311 use super::*;
8312 use crate::{
8313 display_map::{BlockPlacement, BlockProperties},
8314 editor_tests::{init_test, update_test_language_settings},
8315 Editor, MultiBuffer,
8316 };
8317 use gpui::{TestAppContext, VisualTestContext};
8318 use language::language_settings;
8319 use log::info;
8320 use std::num::NonZeroU32;
8321 use util::test::sample_text;
8322
8323 #[gpui::test]
8324 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8325 init_test(cx, |_| {});
8326 let window = cx.add_window(|window, cx| {
8327 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8328 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8329 });
8330
8331 let editor = window.root(cx).unwrap();
8332 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8333 let line_height = window
8334 .update(cx, |_, window, _| {
8335 style.text.line_height_in_pixels(window.rem_size())
8336 })
8337 .unwrap();
8338 let element = EditorElement::new(&editor, style);
8339 let snapshot = window
8340 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8341 .unwrap();
8342
8343 let layouts = cx
8344 .update_window(*window, |_, window, cx| {
8345 element.layout_line_numbers(
8346 None,
8347 GutterDimensions {
8348 left_padding: Pixels::ZERO,
8349 right_padding: Pixels::ZERO,
8350 width: px(30.0),
8351 margin: Pixels::ZERO,
8352 git_blame_entries_width: None,
8353 },
8354 line_height,
8355 gpui::Point::default(),
8356 DisplayRow(0)..DisplayRow(6),
8357 &(0..6)
8358 .map(|row| RowInfo {
8359 buffer_row: Some(row),
8360 ..Default::default()
8361 })
8362 .collect::<Vec<_>>(),
8363 Some(DisplayPoint::new(DisplayRow(0), 0)),
8364 &snapshot,
8365 window,
8366 cx,
8367 )
8368 })
8369 .unwrap();
8370 assert_eq!(layouts.len(), 6);
8371
8372 let relative_rows = window
8373 .update(cx, |editor, window, cx| {
8374 let snapshot = editor.snapshot(window, cx);
8375 element.calculate_relative_line_numbers(
8376 &snapshot,
8377 &(DisplayRow(0)..DisplayRow(6)),
8378 Some(DisplayRow(3)),
8379 )
8380 })
8381 .unwrap();
8382 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8383 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8384 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8385 // current line has no relative number
8386 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8387 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8388
8389 // works if cursor is before screen
8390 let relative_rows = window
8391 .update(cx, |editor, window, cx| {
8392 let snapshot = editor.snapshot(window, cx);
8393 element.calculate_relative_line_numbers(
8394 &snapshot,
8395 &(DisplayRow(3)..DisplayRow(6)),
8396 Some(DisplayRow(1)),
8397 )
8398 })
8399 .unwrap();
8400 assert_eq!(relative_rows.len(), 3);
8401 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8402 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8403 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8404
8405 // works if cursor is after screen
8406 let relative_rows = window
8407 .update(cx, |editor, window, cx| {
8408 let snapshot = editor.snapshot(window, cx);
8409 element.calculate_relative_line_numbers(
8410 &snapshot,
8411 &(DisplayRow(0)..DisplayRow(3)),
8412 Some(DisplayRow(6)),
8413 )
8414 })
8415 .unwrap();
8416 assert_eq!(relative_rows.len(), 3);
8417 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8418 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8419 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8420 }
8421
8422 #[gpui::test]
8423 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8424 init_test(cx, |_| {});
8425
8426 let window = cx.add_window(|window, cx| {
8427 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8428 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8429 });
8430 let cx = &mut VisualTestContext::from_window(*window, cx);
8431 let editor = window.root(cx).unwrap();
8432 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8433
8434 window
8435 .update(cx, |editor, window, cx| {
8436 editor.cursor_shape = CursorShape::Block;
8437 editor.change_selections(None, window, cx, |s| {
8438 s.select_ranges([
8439 Point::new(0, 0)..Point::new(1, 0),
8440 Point::new(3, 2)..Point::new(3, 3),
8441 Point::new(5, 6)..Point::new(6, 0),
8442 ]);
8443 });
8444 })
8445 .unwrap();
8446
8447 let (_, state) = cx.draw(
8448 point(px(500.), px(500.)),
8449 size(px(500.), px(500.)),
8450 |_, _| EditorElement::new(&editor, style),
8451 );
8452
8453 assert_eq!(state.selections.len(), 1);
8454 let local_selections = &state.selections[0].1;
8455 assert_eq!(local_selections.len(), 3);
8456 // moves cursor back one line
8457 assert_eq!(
8458 local_selections[0].head,
8459 DisplayPoint::new(DisplayRow(0), 6)
8460 );
8461 assert_eq!(
8462 local_selections[0].range,
8463 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8464 );
8465
8466 // moves cursor back one column
8467 assert_eq!(
8468 local_selections[1].range,
8469 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8470 );
8471 assert_eq!(
8472 local_selections[1].head,
8473 DisplayPoint::new(DisplayRow(3), 2)
8474 );
8475
8476 // leaves cursor on the max point
8477 assert_eq!(
8478 local_selections[2].range,
8479 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8480 );
8481 assert_eq!(
8482 local_selections[2].head,
8483 DisplayPoint::new(DisplayRow(6), 0)
8484 );
8485
8486 // active lines does not include 1 (even though the range of the selection does)
8487 assert_eq!(
8488 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8489 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8490 );
8491
8492 // multi-buffer support
8493 // in DisplayPoint coordinates, this is what we're dealing with:
8494 // 0: [[file
8495 // 1: header
8496 // 2: section]]
8497 // 3: aaaaaa
8498 // 4: bbbbbb
8499 // 5: cccccc
8500 // 6:
8501 // 7: [[footer]]
8502 // 8: [[header]]
8503 // 9: ffffff
8504 // 10: gggggg
8505 // 11: hhhhhh
8506 // 12:
8507 // 13: [[footer]]
8508 // 14: [[file
8509 // 15: header
8510 // 16: section]]
8511 // 17: bbbbbb
8512 // 18: cccccc
8513 // 19: dddddd
8514 // 20: [[footer]]
8515 let window = cx.add_window(|window, cx| {
8516 let buffer = MultiBuffer::build_multi(
8517 [
8518 (
8519 &(sample_text(8, 6, 'a') + "\n"),
8520 vec![
8521 Point::new(0, 0)..Point::new(3, 0),
8522 Point::new(4, 0)..Point::new(7, 0),
8523 ],
8524 ),
8525 (
8526 &(sample_text(8, 6, 'a') + "\n"),
8527 vec![Point::new(1, 0)..Point::new(3, 0)],
8528 ),
8529 ],
8530 cx,
8531 );
8532 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8533 });
8534 let editor = window.root(cx).unwrap();
8535 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8536 let _state = window.update(cx, |editor, window, cx| {
8537 editor.cursor_shape = CursorShape::Block;
8538 editor.change_selections(None, window, cx, |s| {
8539 s.select_display_ranges([
8540 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8541 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8542 ]);
8543 });
8544 });
8545
8546 let (_, state) = cx.draw(
8547 point(px(500.), px(500.)),
8548 size(px(500.), px(500.)),
8549 |_, _| EditorElement::new(&editor, style),
8550 );
8551 assert_eq!(state.selections.len(), 1);
8552 let local_selections = &state.selections[0].1;
8553 assert_eq!(local_selections.len(), 2);
8554
8555 // moves cursor on excerpt boundary back a line
8556 // and doesn't allow selection to bleed through
8557 assert_eq!(
8558 local_selections[0].range,
8559 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8560 );
8561 assert_eq!(
8562 local_selections[0].head,
8563 DisplayPoint::new(DisplayRow(6), 0)
8564 );
8565 // moves cursor on buffer boundary back two lines
8566 // and doesn't allow selection to bleed through
8567 assert_eq!(
8568 local_selections[1].range,
8569 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8570 );
8571 assert_eq!(
8572 local_selections[1].head,
8573 DisplayPoint::new(DisplayRow(12), 0)
8574 );
8575 }
8576
8577 #[gpui::test]
8578 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8579 init_test(cx, |_| {});
8580
8581 let window = cx.add_window(|window, cx| {
8582 let buffer = MultiBuffer::build_simple("", cx);
8583 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8584 });
8585 let cx = &mut VisualTestContext::from_window(*window, cx);
8586 let editor = window.root(cx).unwrap();
8587 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8588 window
8589 .update(cx, |editor, window, cx| {
8590 editor.set_placeholder_text("hello", cx);
8591 editor.insert_blocks(
8592 [BlockProperties {
8593 style: BlockStyle::Fixed,
8594 placement: BlockPlacement::Above(Anchor::min()),
8595 height: 3,
8596 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8597 priority: 0,
8598 }],
8599 None,
8600 cx,
8601 );
8602
8603 // Blur the editor so that it displays placeholder text.
8604 window.blur();
8605 })
8606 .unwrap();
8607
8608 let (_, state) = cx.draw(
8609 point(px(500.), px(500.)),
8610 size(px(500.), px(500.)),
8611 |_, _| EditorElement::new(&editor, style),
8612 );
8613 assert_eq!(state.position_map.line_layouts.len(), 4);
8614 assert_eq!(state.line_numbers.len(), 1);
8615 assert_eq!(
8616 state
8617 .line_numbers
8618 .get(&MultiBufferRow(0))
8619 .map(|line_number| line_number.shaped_line.text.as_ref()),
8620 Some("1")
8621 );
8622 }
8623
8624 #[gpui::test]
8625 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8626 const TAB_SIZE: u32 = 4;
8627
8628 let input_text = "\t \t|\t| a b";
8629 let expected_invisibles = vec![
8630 Invisible::Tab {
8631 line_start_offset: 0,
8632 line_end_offset: TAB_SIZE as usize,
8633 },
8634 Invisible::Whitespace {
8635 line_offset: TAB_SIZE as usize,
8636 },
8637 Invisible::Tab {
8638 line_start_offset: TAB_SIZE as usize + 1,
8639 line_end_offset: TAB_SIZE as usize * 2,
8640 },
8641 Invisible::Tab {
8642 line_start_offset: TAB_SIZE as usize * 2 + 1,
8643 line_end_offset: TAB_SIZE as usize * 3,
8644 },
8645 Invisible::Whitespace {
8646 line_offset: TAB_SIZE as usize * 3 + 1,
8647 },
8648 Invisible::Whitespace {
8649 line_offset: TAB_SIZE as usize * 3 + 3,
8650 },
8651 ];
8652 assert_eq!(
8653 expected_invisibles.len(),
8654 input_text
8655 .chars()
8656 .filter(|initial_char| initial_char.is_whitespace())
8657 .count(),
8658 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8659 );
8660
8661 for show_line_numbers in [true, false] {
8662 init_test(cx, |s| {
8663 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8664 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8665 });
8666
8667 let actual_invisibles = collect_invisibles_from_new_editor(
8668 cx,
8669 EditorMode::Full,
8670 input_text,
8671 px(500.0),
8672 show_line_numbers,
8673 );
8674
8675 assert_eq!(expected_invisibles, actual_invisibles);
8676 }
8677 }
8678
8679 #[gpui::test]
8680 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8681 init_test(cx, |s| {
8682 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8683 s.defaults.tab_size = NonZeroU32::new(4);
8684 });
8685
8686 for editor_mode_without_invisibles in [
8687 EditorMode::SingleLine { auto_width: false },
8688 EditorMode::AutoHeight { max_lines: 100 },
8689 ] {
8690 for show_line_numbers in [true, false] {
8691 let invisibles = collect_invisibles_from_new_editor(
8692 cx,
8693 editor_mode_without_invisibles,
8694 "\t\t\t| | a b",
8695 px(500.0),
8696 show_line_numbers,
8697 );
8698 assert!(invisibles.is_empty(),
8699 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8700 }
8701 }
8702 }
8703
8704 #[gpui::test]
8705 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8706 let tab_size = 4;
8707 let input_text = "a\tbcd ".repeat(9);
8708 let repeated_invisibles = [
8709 Invisible::Tab {
8710 line_start_offset: 1,
8711 line_end_offset: tab_size as usize,
8712 },
8713 Invisible::Whitespace {
8714 line_offset: tab_size as usize + 3,
8715 },
8716 Invisible::Whitespace {
8717 line_offset: tab_size as usize + 4,
8718 },
8719 Invisible::Whitespace {
8720 line_offset: tab_size as usize + 5,
8721 },
8722 Invisible::Whitespace {
8723 line_offset: tab_size as usize + 6,
8724 },
8725 Invisible::Whitespace {
8726 line_offset: tab_size as usize + 7,
8727 },
8728 ];
8729 let expected_invisibles = std::iter::once(repeated_invisibles)
8730 .cycle()
8731 .take(9)
8732 .flatten()
8733 .collect::<Vec<_>>();
8734 assert_eq!(
8735 expected_invisibles.len(),
8736 input_text
8737 .chars()
8738 .filter(|initial_char| initial_char.is_whitespace())
8739 .count(),
8740 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8741 );
8742 info!("Expected invisibles: {expected_invisibles:?}");
8743
8744 init_test(cx, |_| {});
8745
8746 // Put the same string with repeating whitespace pattern into editors of various size,
8747 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8748 let resize_step = 10.0;
8749 let mut editor_width = 200.0;
8750 while editor_width <= 1000.0 {
8751 for show_line_numbers in [true, false] {
8752 update_test_language_settings(cx, |s| {
8753 s.defaults.tab_size = NonZeroU32::new(tab_size);
8754 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8755 s.defaults.preferred_line_length = Some(editor_width as u32);
8756 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8757 });
8758
8759 let actual_invisibles = collect_invisibles_from_new_editor(
8760 cx,
8761 EditorMode::Full,
8762 &input_text,
8763 px(editor_width),
8764 show_line_numbers,
8765 );
8766
8767 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8768 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8769 let mut i = 0;
8770 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8771 i = actual_index;
8772 match expected_invisibles.get(i) {
8773 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8774 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8775 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8776 _ => {
8777 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8778 }
8779 },
8780 None => {
8781 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8782 }
8783 }
8784 }
8785 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8786 assert!(
8787 missing_expected_invisibles.is_empty(),
8788 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8789 );
8790
8791 editor_width += resize_step;
8792 }
8793 }
8794 }
8795
8796 fn collect_invisibles_from_new_editor(
8797 cx: &mut TestAppContext,
8798 editor_mode: EditorMode,
8799 input_text: &str,
8800 editor_width: Pixels,
8801 show_line_numbers: bool,
8802 ) -> Vec<Invisible> {
8803 info!(
8804 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8805 editor_width.0
8806 );
8807 let window = cx.add_window(|window, cx| {
8808 let buffer = MultiBuffer::build_simple(input_text, cx);
8809 Editor::new(editor_mode, buffer, None, true, window, cx)
8810 });
8811 let cx = &mut VisualTestContext::from_window(*window, cx);
8812 let editor = window.root(cx).unwrap();
8813
8814 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8815 window
8816 .update(cx, |editor, _, cx| {
8817 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8818 editor.set_wrap_width(Some(editor_width), cx);
8819 editor.set_show_line_numbers(show_line_numbers, cx);
8820 })
8821 .unwrap();
8822 let (_, state) = cx.draw(
8823 point(px(500.), px(500.)),
8824 size(px(500.), px(500.)),
8825 |_, _| EditorElement::new(&editor, style),
8826 );
8827 state
8828 .position_map
8829 .line_layouts
8830 .iter()
8831 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8832 .cloned()
8833 .collect()
8834 }
8835}
8836
8837fn diff_hunk_controls(
8838 row: u32,
8839 status: &DiffHunkStatus,
8840 hunk_range: Range<Anchor>,
8841 is_created_file: bool,
8842 line_height: Pixels,
8843 editor: &Entity<Editor>,
8844 cx: &mut App,
8845) -> AnyElement {
8846 h_flex()
8847 .h(line_height)
8848 .mr_1()
8849 .gap_1()
8850 .px_0p5()
8851 .pb_1()
8852 .border_x_1()
8853 .border_b_1()
8854 .border_color(cx.theme().colors().border_variant)
8855 .rounded_b_lg()
8856 .bg(cx.theme().colors().editor_background)
8857 .gap_1()
8858 .occlude()
8859 .shadow_md()
8860 .child(if status.has_secondary_hunk() {
8861 Button::new(("stage", row as u64), "Stage")
8862 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8863 .tooltip({
8864 let focus_handle = editor.focus_handle(cx);
8865 move |window, cx| {
8866 Tooltip::for_action_in(
8867 "Stage Hunk",
8868 &::git::ToggleStaged,
8869 &focus_handle,
8870 window,
8871 cx,
8872 )
8873 }
8874 })
8875 .on_click({
8876 let editor = editor.clone();
8877 move |_event, _window, cx| {
8878 editor.update(cx, |editor, cx| {
8879 editor.stage_or_unstage_diff_hunks(
8880 true,
8881 vec![hunk_range.start..hunk_range.start],
8882 cx,
8883 );
8884 });
8885 }
8886 })
8887 } else {
8888 Button::new(("unstage", row as u64), "Unstage")
8889 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8890 .tooltip({
8891 let focus_handle = editor.focus_handle(cx);
8892 move |window, cx| {
8893 Tooltip::for_action_in(
8894 "Unstage Hunk",
8895 &::git::ToggleStaged,
8896 &focus_handle,
8897 window,
8898 cx,
8899 )
8900 }
8901 })
8902 .on_click({
8903 let editor = editor.clone();
8904 move |_event, _window, cx| {
8905 editor.update(cx, |editor, cx| {
8906 editor.stage_or_unstage_diff_hunks(
8907 false,
8908 vec![hunk_range.start..hunk_range.start],
8909 cx,
8910 );
8911 });
8912 }
8913 })
8914 })
8915 .child(
8916 Button::new("restore", "Restore")
8917 .tooltip({
8918 let focus_handle = editor.focus_handle(cx);
8919 move |window, cx| {
8920 Tooltip::for_action_in(
8921 "Restore Hunk",
8922 &::git::Restore,
8923 &focus_handle,
8924 window,
8925 cx,
8926 )
8927 }
8928 })
8929 .on_click({
8930 let editor = editor.clone();
8931 move |_event, window, cx| {
8932 editor.update(cx, |editor, cx| {
8933 let snapshot = editor.snapshot(window, cx);
8934 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8935 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8936 });
8937 }
8938 })
8939 .disabled(is_created_file),
8940 )
8941 .when(
8942 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8943 |el| {
8944 el.child(
8945 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8946 .shape(IconButtonShape::Square)
8947 .icon_size(IconSize::Small)
8948 // .disabled(!has_multiple_hunks)
8949 .tooltip({
8950 let focus_handle = editor.focus_handle(cx);
8951 move |window, cx| {
8952 Tooltip::for_action_in(
8953 "Next Hunk",
8954 &GoToHunk,
8955 &focus_handle,
8956 window,
8957 cx,
8958 )
8959 }
8960 })
8961 .on_click({
8962 let editor = editor.clone();
8963 move |_event, window, cx| {
8964 editor.update(cx, |editor, cx| {
8965 let snapshot = editor.snapshot(window, cx);
8966 let position =
8967 hunk_range.end.to_point(&snapshot.buffer_snapshot);
8968 editor.go_to_hunk_before_or_after_position(
8969 &snapshot,
8970 position,
8971 Direction::Next,
8972 window,
8973 cx,
8974 );
8975 editor.expand_selected_diff_hunks(cx);
8976 });
8977 }
8978 }),
8979 )
8980 .child(
8981 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8982 .shape(IconButtonShape::Square)
8983 .icon_size(IconSize::Small)
8984 // .disabled(!has_multiple_hunks)
8985 .tooltip({
8986 let focus_handle = editor.focus_handle(cx);
8987 move |window, cx| {
8988 Tooltip::for_action_in(
8989 "Previous Hunk",
8990 &GoToPreviousHunk,
8991 &focus_handle,
8992 window,
8993 cx,
8994 )
8995 }
8996 })
8997 .on_click({
8998 let editor = editor.clone();
8999 move |_event, window, cx| {
9000 editor.update(cx, |editor, cx| {
9001 let snapshot = editor.snapshot(window, cx);
9002 let point =
9003 hunk_range.start.to_point(&snapshot.buffer_snapshot);
9004 editor.go_to_hunk_before_or_after_position(
9005 &snapshot,
9006 point,
9007 Direction::Prev,
9008 window,
9009 cx,
9010 );
9011 editor.expand_selected_diff_hunks(cx);
9012 });
9013 }
9014 }),
9015 )
9016 },
9017 )
9018 .into_any_element()
9019}