1use crate::{
2 ActiveDiagnostic, BlockId, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR,
3 ChunkRendererContext, ChunkReplacement, ContextMenuPlacement, CursorShape, CustomBlockId,
4 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
5 EditDisplayMode, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
6 FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput,
7 HoveredCursor, InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight,
8 LineUp, MAX_LINE_LEN, MIN_LINE_NUMBER_DIGITS, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts,
9 PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection,
10 SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold,
11 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
12 display_map::{
13 Block, BlockContext, BlockStyle, DisplaySnapshot, FoldId, HighlightedChunk, ToDisplayPoint,
14 },
15 editor_settings::{
16 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
17 ScrollbarAxes, ScrollbarDiagnostics, ShowScrollbar,
18 },
19 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
20 hover_popover::{
21 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
22 POPOVER_RIGHT_OFFSET, hover_at,
23 },
24 inlay_hint_settings,
25 items::BufferSearchHighlights,
26 mouse_context_menu::{self, MenuPosition},
27 scroll::scroll_amount::ScrollAmount,
28};
29use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
30use client::ParticipantIndex;
31use collections::{BTreeMap, HashMap};
32use feature_flags::{Debugger, FeatureFlagAppExt};
33use file_icons::FileIcons;
34use git::{Oid, blame::BlameEntry, status::FileStatus};
35use gpui::{
36 Action, Along, AnyElement, App, AvailableSpace, Axis as ScrollbarAxis, BorderStyle, Bounds,
37 ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges, Element,
38 ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox, Hsla,
39 InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
40 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
41 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
42 TextRun, TextStyleRefinement, WeakEntity, Window, anchored, deferred, div, fill,
43 linear_color_stop, linear_gradient, outline, point, px, quad, relative, size, solid_background,
44 transparent_black,
45};
46use itertools::Itertools;
47use language::language_settings::{
48 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
49};
50use lsp::DiagnosticSeverity;
51use multi_buffer::{
52 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
53 MultiBufferRow, RowInfo,
54};
55use project::{
56 debugger::breakpoint_store::Breakpoint,
57 project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
58};
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 time::Duration,
71};
72use sum_tree::Bias;
73use text::BufferId;
74use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
75use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*};
76use unicode_segmentation::UnicodeSegmentation;
77use util::{RangeExt, ResultExt, debug_panic};
78use workspace::{Workspace, item::Item, notifications::NotifyTaskExt};
79
80const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
81
82/// Determines what kinds of highlights should be applied to a lines background.
83#[derive(Clone, Copy, Default)]
84struct LineHighlightSpec {
85 selection: bool,
86 breakpoint: bool,
87 _active_stack_frame: bool,
88}
89
90struct SelectionLayout {
91 head: DisplayPoint,
92 cursor_shape: CursorShape,
93 is_newest: bool,
94 is_local: bool,
95 range: Range<DisplayPoint>,
96 active_rows: Range<DisplayRow>,
97 user_name: Option<SharedString>,
98}
99
100impl SelectionLayout {
101 fn new<T: ToPoint + ToDisplayPoint + Clone>(
102 selection: Selection<T>,
103 line_mode: bool,
104 cursor_shape: CursorShape,
105 map: &DisplaySnapshot,
106 is_newest: bool,
107 is_local: bool,
108 user_name: Option<SharedString>,
109 ) -> Self {
110 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
111 let display_selection = point_selection.map(|p| p.to_display_point(map));
112 let mut range = display_selection.range();
113 let mut head = display_selection.head();
114 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
115 ..map.next_line_boundary(point_selection.end).1.row();
116
117 // vim visual line mode
118 if line_mode {
119 let point_range = map.expand_to_line(point_selection.range());
120 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
121 }
122
123 // any vim visual mode (including line mode)
124 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
125 && !range.is_empty()
126 && !selection.reversed
127 {
128 if head.column() > 0 {
129 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
130 } else if head.row().0 > 0 && head != map.max_point() {
131 head = map.clip_point(
132 DisplayPoint::new(
133 head.row().previous_row(),
134 map.line_len(head.row().previous_row()),
135 ),
136 Bias::Left,
137 );
138 // updating range.end is a no-op unless you're cursor is
139 // on the newline containing a multi-buffer divider
140 // in which case the clip_point may have moved the head up
141 // an additional row.
142 range.end = DisplayPoint::new(head.row().next_row(), 0);
143 active_rows.end = head.row();
144 }
145 }
146
147 Self {
148 head,
149 cursor_shape,
150 is_newest,
151 is_local,
152 range,
153 active_rows,
154 user_name,
155 }
156 }
157}
158
159pub struct EditorElement {
160 editor: Entity<Editor>,
161 style: EditorStyle,
162}
163
164type DisplayRowDelta = u32;
165
166impl EditorElement {
167 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
168
169 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
170 Self {
171 editor: editor.clone(),
172 style,
173 }
174 }
175
176 fn register_actions(&self, window: &mut Window, cx: &mut App) {
177 let editor = &self.editor;
178 editor.update(cx, |editor, cx| {
179 for action in editor.editor_actions.borrow().values() {
180 (action)(window, cx)
181 }
182 });
183
184 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
185 crate::clangd_ext::apply_related_actions(editor, window, cx);
186
187 register_action(editor, window, Editor::open_context_menu);
188 register_action(editor, window, Editor::move_left);
189 register_action(editor, window, Editor::move_right);
190 register_action(editor, window, Editor::move_down);
191 register_action(editor, window, Editor::move_down_by_lines);
192 register_action(editor, window, Editor::select_down_by_lines);
193 register_action(editor, window, Editor::move_up);
194 register_action(editor, window, Editor::move_up_by_lines);
195 register_action(editor, window, Editor::select_up_by_lines);
196 register_action(editor, window, Editor::select_page_down);
197 register_action(editor, window, Editor::select_page_up);
198 register_action(editor, window, Editor::cancel);
199 register_action(editor, window, Editor::newline);
200 register_action(editor, window, Editor::newline_above);
201 register_action(editor, window, Editor::newline_below);
202 register_action(editor, window, Editor::backspace);
203 register_action(editor, window, Editor::delete);
204 register_action(editor, window, Editor::tab);
205 register_action(editor, window, Editor::backtab);
206 register_action(editor, window, Editor::indent);
207 register_action(editor, window, Editor::outdent);
208 register_action(editor, window, Editor::autoindent);
209 register_action(editor, window, Editor::delete_line);
210 register_action(editor, window, Editor::join_lines);
211 register_action(editor, window, Editor::sort_lines_case_sensitive);
212 register_action(editor, window, Editor::sort_lines_case_insensitive);
213 register_action(editor, window, Editor::reverse_lines);
214 register_action(editor, window, Editor::shuffle_lines);
215 register_action(editor, window, Editor::toggle_case);
216 register_action(editor, window, Editor::convert_to_upper_case);
217 register_action(editor, window, Editor::convert_to_lower_case);
218 register_action(editor, window, Editor::convert_to_title_case);
219 register_action(editor, window, Editor::convert_to_snake_case);
220 register_action(editor, window, Editor::convert_to_kebab_case);
221 register_action(editor, window, Editor::convert_to_upper_camel_case);
222 register_action(editor, window, Editor::convert_to_lower_camel_case);
223 register_action(editor, window, Editor::convert_to_opposite_case);
224 register_action(editor, window, Editor::convert_to_rot13);
225 register_action(editor, window, Editor::convert_to_rot47);
226 register_action(editor, window, Editor::delete_to_previous_word_start);
227 register_action(editor, window, Editor::delete_to_previous_subword_start);
228 register_action(editor, window, Editor::delete_to_next_word_end);
229 register_action(editor, window, Editor::delete_to_next_subword_end);
230 register_action(editor, window, Editor::delete_to_beginning_of_line);
231 register_action(editor, window, Editor::delete_to_end_of_line);
232 register_action(editor, window, Editor::cut_to_end_of_line);
233 register_action(editor, window, Editor::duplicate_line_up);
234 register_action(editor, window, Editor::duplicate_line_down);
235 register_action(editor, window, Editor::duplicate_selection);
236 register_action(editor, window, Editor::move_line_up);
237 register_action(editor, window, Editor::move_line_down);
238 register_action(editor, window, Editor::transpose);
239 register_action(editor, window, Editor::rewrap);
240 register_action(editor, window, Editor::cut);
241 register_action(editor, window, Editor::kill_ring_cut);
242 register_action(editor, window, Editor::kill_ring_yank);
243 register_action(editor, window, Editor::copy);
244 register_action(editor, window, Editor::copy_and_trim);
245 register_action(editor, window, Editor::paste);
246 register_action(editor, window, Editor::undo);
247 register_action(editor, window, Editor::redo);
248 register_action(editor, window, Editor::move_page_up);
249 register_action(editor, window, Editor::move_page_down);
250 register_action(editor, window, Editor::next_screen);
251 register_action(editor, window, Editor::scroll_cursor_top);
252 register_action(editor, window, Editor::scroll_cursor_center);
253 register_action(editor, window, Editor::scroll_cursor_bottom);
254 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
255 register_action(editor, window, |editor, _: &LineDown, window, cx| {
256 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
257 });
258 register_action(editor, window, |editor, _: &LineUp, window, cx| {
259 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
260 });
261 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
262 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
263 });
264 register_action(
265 editor,
266 window,
267 |editor, HandleInput(text): &HandleInput, window, cx| {
268 if text.is_empty() {
269 return;
270 }
271 editor.handle_input(text, window, cx);
272 },
273 );
274 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
275 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
276 });
277 register_action(editor, window, |editor, _: &PageDown, window, cx| {
278 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
279 });
280 register_action(editor, window, |editor, _: &PageUp, window, cx| {
281 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
282 });
283 register_action(editor, window, Editor::move_to_previous_word_start);
284 register_action(editor, window, Editor::move_to_previous_subword_start);
285 register_action(editor, window, Editor::move_to_next_word_end);
286 register_action(editor, window, Editor::move_to_next_subword_end);
287 register_action(editor, window, Editor::move_to_beginning_of_line);
288 register_action(editor, window, Editor::move_to_end_of_line);
289 register_action(editor, window, Editor::move_to_start_of_paragraph);
290 register_action(editor, window, Editor::move_to_end_of_paragraph);
291 register_action(editor, window, Editor::move_to_beginning);
292 register_action(editor, window, Editor::move_to_end);
293 register_action(editor, window, Editor::move_to_start_of_excerpt);
294 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
295 register_action(editor, window, Editor::move_to_end_of_excerpt);
296 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
297 register_action(editor, window, Editor::select_up);
298 register_action(editor, window, Editor::select_down);
299 register_action(editor, window, Editor::select_left);
300 register_action(editor, window, Editor::select_right);
301 register_action(editor, window, Editor::select_to_previous_word_start);
302 register_action(editor, window, Editor::select_to_previous_subword_start);
303 register_action(editor, window, Editor::select_to_next_word_end);
304 register_action(editor, window, Editor::select_to_next_subword_end);
305 register_action(editor, window, Editor::select_to_beginning_of_line);
306 register_action(editor, window, Editor::select_to_end_of_line);
307 register_action(editor, window, Editor::select_to_start_of_paragraph);
308 register_action(editor, window, Editor::select_to_end_of_paragraph);
309 register_action(editor, window, Editor::select_to_start_of_excerpt);
310 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
311 register_action(editor, window, Editor::select_to_end_of_excerpt);
312 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
313 register_action(editor, window, Editor::select_to_beginning);
314 register_action(editor, window, Editor::select_to_end);
315 register_action(editor, window, Editor::select_all);
316 register_action(editor, window, |editor, action, window, cx| {
317 editor.select_all_matches(action, window, cx).log_err();
318 });
319 register_action(editor, window, Editor::select_line);
320 register_action(editor, window, Editor::split_selection_into_lines);
321 register_action(editor, window, Editor::add_selection_above);
322 register_action(editor, window, Editor::add_selection_below);
323 register_action(editor, window, |editor, action, window, cx| {
324 editor.select_next(action, window, cx).log_err();
325 });
326 register_action(editor, window, |editor, action, window, cx| {
327 editor.select_previous(action, window, cx).log_err();
328 });
329 register_action(editor, window, |editor, action, window, cx| {
330 editor.find_next_match(action, window, cx).log_err();
331 });
332 register_action(editor, window, |editor, action, window, cx| {
333 editor.find_previous_match(action, window, cx).log_err();
334 });
335 register_action(editor, window, Editor::toggle_comments);
336 register_action(editor, window, Editor::select_larger_syntax_node);
337 register_action(editor, window, Editor::select_smaller_syntax_node);
338 register_action(editor, window, Editor::select_enclosing_symbol);
339 register_action(editor, window, Editor::move_to_enclosing_bracket);
340 register_action(editor, window, Editor::undo_selection);
341 register_action(editor, window, Editor::redo_selection);
342 if !editor.read(cx).is_singleton(cx) {
343 register_action(editor, window, Editor::expand_excerpts);
344 register_action(editor, window, Editor::expand_excerpts_up);
345 register_action(editor, window, Editor::expand_excerpts_down);
346 }
347 register_action(editor, window, Editor::go_to_diagnostic);
348 register_action(editor, window, Editor::go_to_prev_diagnostic);
349 register_action(editor, window, Editor::go_to_next_hunk);
350 register_action(editor, window, Editor::go_to_prev_hunk);
351 register_action(editor, window, |editor, action, window, cx| {
352 editor
353 .go_to_definition(action, window, cx)
354 .detach_and_log_err(cx);
355 });
356 register_action(editor, window, |editor, action, window, cx| {
357 editor
358 .go_to_definition_split(action, window, cx)
359 .detach_and_log_err(cx);
360 });
361 register_action(editor, window, |editor, action, window, cx| {
362 editor
363 .go_to_declaration(action, window, cx)
364 .detach_and_log_err(cx);
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor
368 .go_to_declaration_split(action, window, cx)
369 .detach_and_log_err(cx);
370 });
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_implementation(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor
378 .go_to_implementation_split(action, window, cx)
379 .detach_and_log_err(cx);
380 });
381 register_action(editor, window, |editor, action, window, cx| {
382 editor
383 .go_to_type_definition(action, window, cx)
384 .detach_and_log_err(cx);
385 });
386 register_action(editor, window, |editor, action, window, cx| {
387 editor
388 .go_to_type_definition_split(action, window, cx)
389 .detach_and_log_err(cx);
390 });
391 register_action(editor, window, Editor::open_url);
392 register_action(editor, window, Editor::open_selected_filename);
393 register_action(editor, window, Editor::fold);
394 register_action(editor, window, Editor::fold_at_level);
395 register_action(editor, window, Editor::fold_all);
396 register_action(editor, window, Editor::fold_function_bodies);
397 register_action(editor, window, Editor::fold_recursive);
398 register_action(editor, window, Editor::toggle_fold);
399 register_action(editor, window, Editor::toggle_fold_recursive);
400 register_action(editor, window, Editor::unfold_lines);
401 register_action(editor, window, Editor::unfold_recursive);
402 register_action(editor, window, Editor::unfold_all);
403 register_action(editor, window, Editor::fold_selected_ranges);
404 register_action(editor, window, Editor::set_mark);
405 register_action(editor, window, Editor::swap_selection_ends);
406 register_action(editor, window, Editor::show_completions);
407 register_action(editor, window, Editor::show_word_completions);
408 register_action(editor, window, Editor::toggle_code_actions);
409 register_action(editor, window, Editor::open_excerpts);
410 register_action(editor, window, Editor::open_excerpts_in_split);
411 register_action(editor, window, Editor::open_proposed_changes_editor);
412 register_action(editor, window, Editor::toggle_soft_wrap);
413 register_action(editor, window, Editor::toggle_tab_bar);
414 register_action(editor, window, Editor::toggle_line_numbers);
415 register_action(editor, window, Editor::toggle_relative_line_numbers);
416 register_action(editor, window, Editor::toggle_indent_guides);
417 register_action(editor, window, Editor::toggle_inlay_hints);
418 register_action(editor, window, Editor::toggle_edit_predictions);
419 register_action(editor, window, Editor::toggle_inline_diagnostics);
420 register_action(editor, window, hover_popover::hover);
421 register_action(editor, window, Editor::reveal_in_finder);
422 register_action(editor, window, Editor::copy_path);
423 register_action(editor, window, Editor::copy_relative_path);
424 register_action(editor, window, Editor::copy_file_name);
425 register_action(editor, window, Editor::copy_file_name_without_extension);
426 register_action(editor, window, Editor::copy_highlight_json);
427 register_action(editor, window, Editor::copy_permalink_to_line);
428 register_action(editor, window, Editor::open_permalink_to_line);
429 register_action(editor, window, Editor::copy_file_location);
430 register_action(editor, window, Editor::toggle_git_blame);
431 register_action(editor, window, Editor::toggle_git_blame_inline);
432 register_action(editor, window, Editor::open_git_blame_commit);
433 register_action(editor, window, Editor::toggle_selected_diff_hunks);
434 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
435 register_action(editor, window, Editor::stage_and_next);
436 register_action(editor, window, Editor::unstage_and_next);
437 register_action(editor, window, Editor::expand_all_diff_hunks);
438 register_action(editor, window, Editor::go_to_previous_change);
439 register_action(editor, window, Editor::go_to_next_change);
440
441 register_action(editor, window, |editor, action, window, cx| {
442 if let Some(task) = editor.format(action, window, cx) {
443 task.detach_and_notify_err(window, cx);
444 } else {
445 cx.propagate();
446 }
447 });
448 register_action(editor, window, |editor, action, window, cx| {
449 if let Some(task) = editor.format_selections(action, window, cx) {
450 task.detach_and_notify_err(window, cx);
451 } else {
452 cx.propagate();
453 }
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 if let Some(task) = editor.organize_imports(action, window, cx) {
457 task.detach_and_notify_err(window, cx);
458 } else {
459 cx.propagate();
460 }
461 });
462 register_action(editor, window, Editor::restart_language_server);
463 register_action(editor, window, Editor::stop_language_server);
464 register_action(editor, window, Editor::show_character_palette);
465 register_action(editor, window, |editor, action, window, cx| {
466 if let Some(task) = editor.confirm_completion(action, window, cx) {
467 task.detach_and_notify_err(window, cx);
468 } else {
469 cx.propagate();
470 }
471 });
472 register_action(editor, window, |editor, action, window, cx| {
473 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
474 task.detach_and_notify_err(window, cx);
475 } else {
476 cx.propagate();
477 }
478 });
479 register_action(editor, window, |editor, action, window, cx| {
480 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
481 task.detach_and_notify_err(window, cx);
482 } else {
483 cx.propagate();
484 }
485 });
486 register_action(editor, window, |editor, action, window, cx| {
487 if let Some(task) = editor.compose_completion(action, window, cx) {
488 task.detach_and_notify_err(window, cx);
489 } else {
490 cx.propagate();
491 }
492 });
493 register_action(editor, window, |editor, action, window, cx| {
494 if let Some(task) = editor.confirm_code_action(action, window, cx) {
495 task.detach_and_notify_err(window, cx);
496 } else {
497 cx.propagate();
498 }
499 });
500 register_action(editor, window, |editor, action, window, cx| {
501 if let Some(task) = editor.rename(action, window, cx) {
502 task.detach_and_notify_err(window, cx);
503 } else {
504 cx.propagate();
505 }
506 });
507 register_action(editor, window, |editor, action, window, cx| {
508 if let Some(task) = editor.confirm_rename(action, window, cx) {
509 task.detach_and_notify_err(window, cx);
510 } else {
511 cx.propagate();
512 }
513 });
514 register_action(editor, window, |editor, action, window, cx| {
515 if let Some(task) = editor.find_all_references(action, window, cx) {
516 task.detach_and_log_err(cx);
517 } else {
518 cx.propagate();
519 }
520 });
521 register_action(editor, window, Editor::show_signature_help);
522 register_action(editor, window, Editor::next_edit_prediction);
523 register_action(editor, window, Editor::previous_edit_prediction);
524 register_action(editor, window, Editor::show_inline_completion);
525 register_action(editor, window, Editor::context_menu_first);
526 register_action(editor, window, Editor::context_menu_prev);
527 register_action(editor, window, Editor::context_menu_next);
528 register_action(editor, window, Editor::context_menu_last);
529 register_action(editor, window, Editor::display_cursor_names);
530 register_action(editor, window, Editor::unique_lines_case_insensitive);
531 register_action(editor, window, Editor::unique_lines_case_sensitive);
532 register_action(editor, window, Editor::accept_partial_inline_completion);
533 register_action(editor, window, Editor::accept_edit_prediction);
534 register_action(editor, window, Editor::restore_file);
535 register_action(editor, window, Editor::git_restore);
536 register_action(editor, window, Editor::apply_all_diff_hunks);
537 register_action(editor, window, Editor::apply_selected_diff_hunks);
538 register_action(editor, window, Editor::open_active_item_in_terminal);
539 register_action(editor, window, Editor::reload_file);
540 register_action(editor, window, Editor::spawn_nearest_task);
541 register_action(editor, window, Editor::insert_uuid_v4);
542 register_action(editor, window, Editor::insert_uuid_v7);
543 register_action(editor, window, Editor::open_selections_in_multibuffer);
544 if cx.has_flag::<Debugger>() {
545 register_action(editor, window, Editor::toggle_breakpoint);
546 register_action(editor, window, Editor::edit_log_breakpoint);
547 register_action(editor, window, Editor::enable_breakpoint);
548 register_action(editor, window, Editor::disable_breakpoint);
549 }
550 }
551
552 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
553 let position_map = layout.position_map.clone();
554 window.on_key_event({
555 let editor = self.editor.clone();
556 move |event: &ModifiersChangedEvent, phase, window, cx| {
557 if phase != DispatchPhase::Bubble {
558 return;
559 }
560 editor.update(cx, |editor, cx| {
561 let inlay_hint_settings = inlay_hint_settings(
562 editor.selections.newest_anchor().head(),
563 &editor.buffer.read(cx).snapshot(cx),
564 cx,
565 );
566
567 if let Some(inlay_modifiers) = inlay_hint_settings
568 .toggle_on_modifiers_press
569 .as_ref()
570 .filter(|modifiers| modifiers.modified())
571 {
572 editor.refresh_inlay_hints(
573 InlayHintRefreshReason::ModifiersChanged(
574 inlay_modifiers == &event.modifiers,
575 ),
576 cx,
577 );
578 }
579
580 if editor.hover_state.focused(window, cx) {
581 return;
582 }
583
584 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
585 })
586 }
587 });
588 }
589
590 fn mouse_left_down(
591 editor: &mut Editor,
592 event: &MouseDownEvent,
593 hovered_hunk: Option<Range<Anchor>>,
594 position_map: &PositionMap,
595 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
596 window: &mut Window,
597 cx: &mut Context<Editor>,
598 ) {
599 if window.default_prevented() {
600 return;
601 }
602
603 let text_hitbox = &position_map.text_hitbox;
604 let gutter_hitbox = &position_map.gutter_hitbox;
605 let mut click_count = event.click_count;
606 let mut modifiers = event.modifiers;
607
608 if let Some(hovered_hunk) = hovered_hunk {
609 editor.toggle_single_diff_hunk(hovered_hunk, cx);
610 cx.notify();
611 return;
612 } else if gutter_hitbox.is_hovered(window) {
613 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
614 } else if !text_hitbox.is_hovered(window) {
615 return;
616 }
617
618 let is_singleton = editor.buffer().read(cx).is_singleton();
619
620 if click_count == 2 && !is_singleton {
621 match EditorSettings::get_global(cx).double_click_in_multibuffer {
622 DoubleClickInMultibuffer::Select => {
623 // do nothing special on double click, all selection logic is below
624 }
625 DoubleClickInMultibuffer::Open => {
626 if modifiers.alt {
627 // if double click is made with alt, pretend it's a regular double click without opening and alt,
628 // and run the selection logic.
629 modifiers.alt = false;
630 } else {
631 let scroll_position_row =
632 position_map.scroll_pixel_position.y / position_map.line_height;
633 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
634 + position_map.scroll_pixel_position.y)
635 / position_map.line_height)
636 as u32;
637 let multi_buffer_row = position_map
638 .snapshot
639 .display_point_to_point(
640 DisplayPoint::new(DisplayRow(display_row), 0),
641 Bias::Right,
642 )
643 .row;
644 let line_offset_from_top = display_row - scroll_position_row as u32;
645 // if double click is made without alt, open the corresponding excerp
646 editor.open_excerpts_common(
647 Some(JumpData::MultiBufferRow {
648 row: MultiBufferRow(multi_buffer_row),
649 line_offset_from_top,
650 }),
651 false,
652 window,
653 cx,
654 );
655 return;
656 }
657 }
658 }
659 }
660
661 let point_for_position = position_map.point_for_position(event.position);
662 let position = point_for_position.previous_valid;
663 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
664 editor.select(
665 SelectPhase::BeginColumnar {
666 position,
667 reset: false,
668 goal_column: point_for_position.exact_unclipped.column(),
669 },
670 window,
671 cx,
672 );
673 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
674 {
675 editor.select(
676 SelectPhase::Extend {
677 position,
678 click_count,
679 },
680 window,
681 cx,
682 );
683 } else {
684 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
685 let multi_cursor_modifier = match multi_cursor_setting {
686 MultiCursorModifier::Alt => modifiers.alt,
687 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
688 };
689 editor.select(
690 SelectPhase::Begin {
691 position,
692 add: multi_cursor_modifier,
693 click_count,
694 },
695 window,
696 cx,
697 );
698 }
699 cx.stop_propagation();
700
701 if !is_singleton {
702 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
703 + position_map.scroll_pixel_position.y)
704 / position_map.line_height) as u32;
705 let multi_buffer_row = position_map
706 .snapshot
707 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
708 .row;
709 if line_numbers
710 .get(&MultiBufferRow(multi_buffer_row))
711 .and_then(|line_number| line_number.hitbox.as_ref())
712 .is_some_and(|hitbox| hitbox.contains(&event.position))
713 {
714 let scroll_position_row =
715 position_map.scroll_pixel_position.y / position_map.line_height;
716 let line_offset_from_top = display_row - scroll_position_row as u32;
717
718 editor.open_excerpts_common(
719 Some(JumpData::MultiBufferRow {
720 row: MultiBufferRow(multi_buffer_row),
721 line_offset_from_top,
722 }),
723 modifiers.alt,
724 window,
725 cx,
726 );
727 cx.stop_propagation();
728 }
729 }
730 }
731
732 fn mouse_right_down(
733 editor: &mut Editor,
734 event: &MouseDownEvent,
735 position_map: &PositionMap,
736 window: &mut Window,
737 cx: &mut Context<Editor>,
738 ) {
739 if position_map.gutter_hitbox.is_hovered(window) {
740 let gutter_right_padding = editor.gutter_dimensions.right_padding;
741 let hitbox = &position_map.gutter_hitbox;
742
743 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
744 let point_for_position = position_map.point_for_position(event.position);
745 editor.set_breakpoint_context_menu(
746 point_for_position.previous_valid.row(),
747 None,
748 event.position,
749 window,
750 cx,
751 );
752 }
753 return;
754 }
755
756 if !position_map.text_hitbox.is_hovered(window) {
757 return;
758 }
759
760 let point_for_position = position_map.point_for_position(event.position);
761 mouse_context_menu::deploy_context_menu(
762 editor,
763 Some(event.position),
764 point_for_position.previous_valid,
765 window,
766 cx,
767 );
768 cx.stop_propagation();
769 }
770
771 fn mouse_middle_down(
772 editor: &mut Editor,
773 event: &MouseDownEvent,
774 position_map: &PositionMap,
775 window: &mut Window,
776 cx: &mut Context<Editor>,
777 ) {
778 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
779 return;
780 }
781
782 let point_for_position = position_map.point_for_position(event.position);
783 let position = point_for_position.previous_valid;
784
785 editor.select(
786 SelectPhase::BeginColumnar {
787 position,
788 reset: true,
789 goal_column: point_for_position.exact_unclipped.column(),
790 },
791 window,
792 cx,
793 );
794 }
795
796 fn mouse_up(
797 editor: &mut Editor,
798 event: &MouseUpEvent,
799 position_map: &PositionMap,
800 window: &mut Window,
801 cx: &mut Context<Editor>,
802 ) {
803 let text_hitbox = &position_map.text_hitbox;
804 let end_selection = editor.has_pending_selection();
805 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
806
807 if end_selection {
808 editor.select(SelectPhase::End, window, cx);
809 }
810
811 if end_selection && pending_nonempty_selections {
812 cx.stop_propagation();
813 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
814 && event.button == MouseButton::Middle
815 {
816 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
817 return;
818 }
819
820 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
821 if EditorSettings::get_global(cx).middle_click_paste {
822 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
823 let point_for_position = position_map.point_for_position(event.position);
824 let position = point_for_position.previous_valid;
825
826 editor.select(
827 SelectPhase::Begin {
828 position,
829 add: false,
830 click_count: 1,
831 },
832 window,
833 cx,
834 );
835 editor.insert(&text, window, cx);
836 }
837 cx.stop_propagation()
838 }
839 }
840 }
841
842 fn click(
843 editor: &mut Editor,
844 event: &ClickEvent,
845 position_map: &PositionMap,
846 window: &mut Window,
847 cx: &mut Context<Editor>,
848 ) {
849 let text_hitbox = &position_map.text_hitbox;
850 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
851
852 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
853 let multi_cursor_modifier = match multi_cursor_setting {
854 MultiCursorModifier::Alt => event.modifiers().secondary(),
855 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
856 };
857
858 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
859 let point = position_map.point_for_position(event.up.position);
860 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
861
862 cx.stop_propagation();
863 }
864 }
865
866 fn mouse_dragged(
867 editor: &mut Editor,
868 event: &MouseMoveEvent,
869 position_map: &PositionMap,
870 window: &mut Window,
871 cx: &mut Context<Editor>,
872 ) {
873 if !editor.has_pending_selection() {
874 return;
875 }
876
877 let text_bounds = position_map.text_hitbox.bounds;
878 let point_for_position = position_map.point_for_position(event.position);
879 let mut scroll_delta = gpui::Point::<f32>::default();
880 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
881 let top = text_bounds.origin.y + vertical_margin;
882 let bottom = text_bounds.bottom_left().y - vertical_margin;
883 if event.position.y < top {
884 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
885 }
886 if event.position.y > bottom {
887 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
888 }
889
890 // We need horizontal width of text
891 let style = editor.style.clone().unwrap_or_default();
892 let font_id = window.text_system().resolve_font(&style.text.font());
893 let font_size = style.text.font_size.to_pixels(window.rem_size());
894 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
895
896 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
897
898 let scroll_space: Pixels = scroll_margin_x * em_width;
899
900 let left = text_bounds.origin.x + scroll_space;
901 let right = text_bounds.top_right().x - scroll_space;
902
903 if event.position.x < left {
904 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
905 }
906 if event.position.x > right {
907 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
908 }
909
910 editor.select(
911 SelectPhase::Update {
912 position: point_for_position.previous_valid,
913 goal_column: point_for_position.exact_unclipped.column(),
914 scroll_delta,
915 },
916 window,
917 cx,
918 );
919 }
920
921 fn mouse_moved(
922 editor: &mut Editor,
923 event: &MouseMoveEvent,
924 position_map: &PositionMap,
925 window: &mut Window,
926 cx: &mut Context<Editor>,
927 ) {
928 let text_hitbox = &position_map.text_hitbox;
929 let gutter_hitbox = &position_map.gutter_hitbox;
930 let modifiers = event.modifiers;
931 let gutter_hovered = gutter_hitbox.is_hovered(window);
932 editor.set_gutter_hovered(gutter_hovered, cx);
933 editor.mouse_cursor_hidden = false;
934
935 if gutter_hovered {
936 let new_point = position_map
937 .point_for_position(event.position)
938 .previous_valid;
939 let buffer_anchor = position_map
940 .snapshot
941 .display_point_to_anchor(new_point, Bias::Left);
942
943 if position_map
944 .snapshot
945 .buffer_snapshot
946 .buffer_for_excerpt(buffer_anchor.excerpt_id)
947 .is_some_and(|buffer| buffer.file().is_some())
948 {
949 let was_hovered = editor.gutter_breakpoint_indicator.0.is_some();
950 let is_visible = editor
951 .gutter_breakpoint_indicator
952 .0
953 .map_or(false, |(_, is_active)| is_active);
954 editor.gutter_breakpoint_indicator.0 = Some((new_point, is_visible));
955
956 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
957 cx.spawn(async move |this, cx| {
958 if !was_hovered {
959 cx.background_executor()
960 .timer(Duration::from_millis(200))
961 .await;
962 }
963
964 this.update(cx, |this, cx| {
965 if let Some((_, is_active)) =
966 this.gutter_breakpoint_indicator.0.as_mut()
967 {
968 *is_active = true;
969 }
970
971 cx.notify();
972 })
973 .ok();
974 })
975 });
976 } else {
977 editor.gutter_breakpoint_indicator = (None, None);
978 }
979 } else {
980 editor.gutter_breakpoint_indicator = (None, None);
981 }
982
983 cx.notify();
984
985 // Don't trigger hover popover if mouse is hovering over context menu
986 if text_hitbox.is_hovered(window) {
987 let point_for_position = position_map.point_for_position(event.position);
988
989 editor.update_hovered_link(
990 point_for_position,
991 &position_map.snapshot,
992 modifiers,
993 window,
994 cx,
995 );
996
997 if let Some(point) = point_for_position.as_valid() {
998 let anchor = position_map
999 .snapshot
1000 .buffer_snapshot
1001 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1002 hover_at(editor, Some(anchor), window, cx);
1003 Self::update_visible_cursor(editor, point, position_map, window, cx);
1004 } else {
1005 hover_at(editor, None, window, cx);
1006 }
1007 } else {
1008 editor.hide_hovered_link(cx);
1009 hover_at(editor, None, window, cx);
1010 }
1011 }
1012
1013 fn update_visible_cursor(
1014 editor: &mut Editor,
1015 point: DisplayPoint,
1016 position_map: &PositionMap,
1017 window: &mut Window,
1018 cx: &mut Context<Editor>,
1019 ) {
1020 let snapshot = &position_map.snapshot;
1021 let Some(hub) = editor.collaboration_hub() else {
1022 return;
1023 };
1024 let start = snapshot.display_snapshot.clip_point(
1025 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1026 Bias::Left,
1027 );
1028 let end = snapshot.display_snapshot.clip_point(
1029 DisplayPoint::new(
1030 point.row(),
1031 (point.column() + 1).min(snapshot.line_len(point.row())),
1032 ),
1033 Bias::Right,
1034 );
1035
1036 let range = snapshot
1037 .buffer_snapshot
1038 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1039 ..snapshot
1040 .buffer_snapshot
1041 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1042
1043 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1044 return;
1045 };
1046 let key = crate::HoveredCursor {
1047 replica_id: selection.replica_id,
1048 selection_id: selection.selection.id,
1049 };
1050 editor.hovered_cursors.insert(
1051 key.clone(),
1052 cx.spawn_in(window, async move |editor, cx| {
1053 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1054 editor
1055 .update(cx, |editor, cx| {
1056 editor.hovered_cursors.remove(&key);
1057 cx.notify();
1058 })
1059 .ok();
1060 }),
1061 );
1062 cx.notify()
1063 }
1064
1065 fn layout_selections(
1066 &self,
1067 start_anchor: Anchor,
1068 end_anchor: Anchor,
1069 local_selections: &[Selection<Point>],
1070 snapshot: &EditorSnapshot,
1071 start_row: DisplayRow,
1072 end_row: DisplayRow,
1073 window: &mut Window,
1074 cx: &mut App,
1075 ) -> (
1076 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1077 BTreeMap<DisplayRow, LineHighlightSpec>,
1078 Option<DisplayPoint>,
1079 ) {
1080 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1081 let mut active_rows = BTreeMap::new();
1082 let mut newest_selection_head = None;
1083 self.editor.update(cx, |editor, cx| {
1084 if editor.show_local_selections {
1085 let mut layouts = Vec::new();
1086 let newest = editor.selections.newest(cx);
1087 for selection in local_selections.iter().cloned() {
1088 let is_empty = selection.start == selection.end;
1089 let is_newest = selection == newest;
1090
1091 let layout = SelectionLayout::new(
1092 selection,
1093 editor.selections.line_mode,
1094 editor.cursor_shape,
1095 &snapshot.display_snapshot,
1096 is_newest,
1097 editor.leader_peer_id.is_none(),
1098 None,
1099 );
1100 if is_newest {
1101 newest_selection_head = Some(layout.head);
1102 }
1103
1104 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1105 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1106 {
1107 let contains_non_empty_selection = active_rows
1108 .entry(DisplayRow(row))
1109 .or_insert_with(LineHighlightSpec::default);
1110 contains_non_empty_selection.selection |= !is_empty;
1111 }
1112 layouts.push(layout);
1113 }
1114
1115 let player = editor.current_user_player_color(cx);
1116 selections.push((player, layouts));
1117 }
1118
1119 if let Some(collaboration_hub) = &editor.collaboration_hub {
1120 // When following someone, render the local selections in their color.
1121 if let Some(leader_id) = editor.leader_peer_id {
1122 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1123 {
1124 if let Some(participant_index) = collaboration_hub
1125 .user_participant_indices(cx)
1126 .get(&collaborator.user_id)
1127 {
1128 if let Some((local_selection_style, _)) = selections.first_mut() {
1129 *local_selection_style = cx
1130 .theme()
1131 .players()
1132 .color_for_participant(participant_index.0);
1133 }
1134 }
1135 }
1136 }
1137
1138 let mut remote_selections = HashMap::default();
1139 for selection in snapshot.remote_selections_in_range(
1140 &(start_anchor..end_anchor),
1141 collaboration_hub.as_ref(),
1142 cx,
1143 ) {
1144 let selection_style =
1145 Self::get_participant_color(selection.participant_index, cx);
1146
1147 // Don't re-render the leader's selections, since the local selections
1148 // match theirs.
1149 if Some(selection.peer_id) == editor.leader_peer_id {
1150 continue;
1151 }
1152 let key = HoveredCursor {
1153 replica_id: selection.replica_id,
1154 selection_id: selection.selection.id,
1155 };
1156
1157 let is_shown =
1158 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1159
1160 remote_selections
1161 .entry(selection.replica_id)
1162 .or_insert((selection_style, Vec::new()))
1163 .1
1164 .push(SelectionLayout::new(
1165 selection.selection,
1166 selection.line_mode,
1167 selection.cursor_shape,
1168 &snapshot.display_snapshot,
1169 false,
1170 false,
1171 if is_shown { selection.user_name } else { None },
1172 ));
1173 }
1174
1175 selections.extend(remote_selections.into_values());
1176 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1177 let layouts = snapshot
1178 .buffer_snapshot
1179 .selections_in_range(&(start_anchor..end_anchor), true)
1180 .map(move |(_, line_mode, cursor_shape, selection)| {
1181 SelectionLayout::new(
1182 selection,
1183 line_mode,
1184 cursor_shape,
1185 &snapshot.display_snapshot,
1186 false,
1187 false,
1188 None,
1189 )
1190 })
1191 .collect::<Vec<_>>();
1192 let player = editor.current_user_player_color(cx);
1193 selections.push((player, layouts));
1194 }
1195 });
1196 (selections, active_rows, newest_selection_head)
1197 }
1198
1199 fn collect_cursors(
1200 &self,
1201 snapshot: &EditorSnapshot,
1202 cx: &mut App,
1203 ) -> Vec<(DisplayPoint, Hsla)> {
1204 let editor = self.editor.read(cx);
1205 let mut cursors = Vec::new();
1206 let mut skip_local = false;
1207 let mut add_cursor = |anchor: Anchor, color| {
1208 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1209 };
1210 // Remote cursors
1211 if let Some(collaboration_hub) = &editor.collaboration_hub {
1212 for remote_selection in snapshot.remote_selections_in_range(
1213 &(Anchor::min()..Anchor::max()),
1214 collaboration_hub.deref(),
1215 cx,
1216 ) {
1217 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1218 add_cursor(remote_selection.selection.head(), color.cursor);
1219 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1220 skip_local = true;
1221 }
1222 }
1223 }
1224 // Local cursors
1225 if !skip_local {
1226 let color = cx.theme().players().local().cursor;
1227 editor.selections.disjoint.iter().for_each(|selection| {
1228 add_cursor(selection.head(), color);
1229 });
1230 if let Some(ref selection) = editor.selections.pending_anchor() {
1231 add_cursor(selection.head(), color);
1232 }
1233 }
1234 cursors
1235 }
1236
1237 fn layout_visible_cursors(
1238 &self,
1239 snapshot: &EditorSnapshot,
1240 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1241 row_block_types: &HashMap<DisplayRow, bool>,
1242 visible_display_row_range: Range<DisplayRow>,
1243 line_layouts: &[LineWithInvisibles],
1244 text_hitbox: &Hitbox,
1245 content_origin: gpui::Point<Pixels>,
1246 scroll_position: gpui::Point<f32>,
1247 scroll_pixel_position: gpui::Point<Pixels>,
1248 line_height: Pixels,
1249 em_width: Pixels,
1250 em_advance: Pixels,
1251 autoscroll_containing_element: bool,
1252 window: &mut Window,
1253 cx: &mut App,
1254 ) -> Vec<CursorLayout> {
1255 let mut autoscroll_bounds = None;
1256 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1257 let mut cursors = Vec::new();
1258
1259 let show_local_cursors = editor.show_local_cursors(window, cx);
1260
1261 for (player_color, selections) in selections {
1262 for selection in selections {
1263 let cursor_position = selection.head;
1264
1265 let in_range = visible_display_row_range.contains(&cursor_position.row());
1266 if (selection.is_local && !show_local_cursors)
1267 || !in_range
1268 || row_block_types.get(&cursor_position.row()) == Some(&true)
1269 {
1270 continue;
1271 }
1272
1273 let cursor_row_layout = &line_layouts
1274 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1275 let cursor_column = cursor_position.column() as usize;
1276
1277 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1278 let mut block_width =
1279 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1280 if block_width == Pixels::ZERO {
1281 block_width = em_advance;
1282 }
1283 let block_text = if let CursorShape::Block = selection.cursor_shape {
1284 snapshot
1285 .grapheme_at(cursor_position)
1286 .or_else(|| {
1287 if cursor_column == 0 {
1288 snapshot.placeholder_text().and_then(|s| {
1289 s.graphemes(true).next().map(|s| s.to_string().into())
1290 })
1291 } else {
1292 None
1293 }
1294 })
1295 .and_then(|text| {
1296 let len = text.len();
1297
1298 let font = cursor_row_layout
1299 .font_id_for_index(cursor_column)
1300 .and_then(|cursor_font_id| {
1301 window.text_system().get_font_for_id(cursor_font_id)
1302 })
1303 .unwrap_or(self.style.text.font());
1304
1305 // Invert the text color for the block cursor. Ensure that the text
1306 // color is opaque enough to be visible against the background color.
1307 //
1308 // 0.75 is an arbitrary threshold to determine if the background color is
1309 // opaque enough to use as a text color.
1310 //
1311 // TODO: In the future we should ensure themes have a `text_inverse` color.
1312 let color = if cx.theme().colors().editor_background.a < 0.75 {
1313 match cx.theme().appearance {
1314 Appearance::Dark => Hsla::black(),
1315 Appearance::Light => Hsla::white(),
1316 }
1317 } else {
1318 cx.theme().colors().editor_background
1319 };
1320
1321 window
1322 .text_system()
1323 .shape_line(
1324 text,
1325 cursor_row_layout.font_size,
1326 &[TextRun {
1327 len,
1328 font,
1329 color,
1330 background_color: None,
1331 strikethrough: None,
1332 underline: None,
1333 }],
1334 )
1335 .log_err()
1336 })
1337 } else {
1338 None
1339 };
1340
1341 let x = cursor_character_x - scroll_pixel_position.x;
1342 let y = (cursor_position.row().as_f32()
1343 - scroll_pixel_position.y / line_height)
1344 * line_height;
1345 if selection.is_newest {
1346 editor.pixel_position_of_newest_cursor = Some(point(
1347 text_hitbox.origin.x + x + block_width / 2.,
1348 text_hitbox.origin.y + y + line_height / 2.,
1349 ));
1350
1351 if autoscroll_containing_element {
1352 let top = text_hitbox.origin.y
1353 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1354 * line_height;
1355 let left = text_hitbox.origin.x
1356 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1357 .max(0.)
1358 * em_width;
1359
1360 let bottom = text_hitbox.origin.y
1361 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1362 * line_height;
1363 let right = text_hitbox.origin.x
1364 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1365 * em_width;
1366
1367 autoscroll_bounds =
1368 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1369 }
1370 }
1371
1372 let mut cursor = CursorLayout {
1373 color: player_color.cursor,
1374 block_width,
1375 origin: point(x, y),
1376 line_height,
1377 shape: selection.cursor_shape,
1378 block_text,
1379 cursor_name: None,
1380 };
1381 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1382 string: name,
1383 color: self.style.background,
1384 is_top_row: cursor_position.row().0 == 0,
1385 });
1386 cursor.layout(content_origin, cursor_name, window, cx);
1387 cursors.push(cursor);
1388 }
1389 }
1390
1391 cursors
1392 });
1393
1394 if let Some(bounds) = autoscroll_bounds {
1395 window.request_autoscroll(bounds);
1396 }
1397
1398 cursor_layouts
1399 }
1400
1401 fn layout_scrollbars(
1402 &self,
1403 snapshot: &EditorSnapshot,
1404 scrollbar_layout_information: ScrollbarLayoutInformation,
1405 content_offset: gpui::Point<Pixels>,
1406 scroll_position: gpui::Point<f32>,
1407 non_visible_cursors: bool,
1408 window: &mut Window,
1409 cx: &mut App,
1410 ) -> Option<EditorScrollbars> {
1411 if !snapshot.mode.is_full() {
1412 return None;
1413 }
1414
1415 // If a drag took place after we started dragging the scrollbar,
1416 // cancel the scrollbar drag.
1417 if cx.has_active_drag() {
1418 self.editor.update(cx, |editor, cx| {
1419 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1420 });
1421 }
1422
1423 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1424 let show_scrollbars = self.editor.read(cx).show_scrollbars
1425 && match scrollbar_settings.show {
1426 ShowScrollbar::Auto => {
1427 let editor = self.editor.read(cx);
1428 let is_singleton = editor.is_singleton(cx);
1429 // Git
1430 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1431 ||
1432 // Buffer Search Results
1433 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1434 ||
1435 // Selected Text Occurrences
1436 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1437 ||
1438 // Selected Symbol Occurrences
1439 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1440 ||
1441 // Diagnostics
1442 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1443 ||
1444 // Cursors out of sight
1445 non_visible_cursors
1446 ||
1447 // Scrollmanager
1448 editor.scroll_manager.scrollbars_visible()
1449 }
1450 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1451 ShowScrollbar::Always => true,
1452 ShowScrollbar::Never => return None,
1453 };
1454
1455 Some(EditorScrollbars::from_scrollbar_axes(
1456 scrollbar_settings.axes,
1457 &scrollbar_layout_information,
1458 content_offset,
1459 scroll_position,
1460 self.style.scrollbar_width,
1461 show_scrollbars,
1462 window,
1463 ))
1464 }
1465
1466 fn prepaint_crease_toggles(
1467 &self,
1468 crease_toggles: &mut [Option<AnyElement>],
1469 line_height: Pixels,
1470 gutter_dimensions: &GutterDimensions,
1471 gutter_settings: crate::editor_settings::Gutter,
1472 scroll_pixel_position: gpui::Point<Pixels>,
1473 gutter_hitbox: &Hitbox,
1474 window: &mut Window,
1475 cx: &mut App,
1476 ) {
1477 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1478 if let Some(crease_toggle) = crease_toggle {
1479 debug_assert!(gutter_settings.folds);
1480 let available_space = size(
1481 AvailableSpace::MinContent,
1482 AvailableSpace::Definite(line_height * 0.55),
1483 );
1484 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1485
1486 let position = point(
1487 gutter_dimensions.width - gutter_dimensions.right_padding,
1488 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1489 );
1490 let centering_offset = point(
1491 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1492 (line_height - crease_toggle_size.height) / 2.,
1493 );
1494 let origin = gutter_hitbox.origin + position + centering_offset;
1495 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1496 }
1497 }
1498 }
1499
1500 fn prepaint_expand_toggles(
1501 &self,
1502 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1503 window: &mut Window,
1504 cx: &mut App,
1505 ) {
1506 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1507 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1508 expand_toggle.layout_as_root(available_space, window, cx);
1509 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1510 }
1511 }
1512
1513 fn prepaint_crease_trailers(
1514 &self,
1515 trailers: Vec<Option<AnyElement>>,
1516 lines: &[LineWithInvisibles],
1517 line_height: Pixels,
1518 content_origin: gpui::Point<Pixels>,
1519 scroll_pixel_position: gpui::Point<Pixels>,
1520 em_width: Pixels,
1521 window: &mut Window,
1522 cx: &mut App,
1523 ) -> Vec<Option<CreaseTrailerLayout>> {
1524 trailers
1525 .into_iter()
1526 .enumerate()
1527 .map(|(ix, element)| {
1528 let mut element = element?;
1529 let available_space = size(
1530 AvailableSpace::MinContent,
1531 AvailableSpace::Definite(line_height),
1532 );
1533 let size = element.layout_as_root(available_space, window, cx);
1534
1535 let line = &lines[ix];
1536 let padding = if line.width == Pixels::ZERO {
1537 Pixels::ZERO
1538 } else {
1539 4. * em_width
1540 };
1541 let position = point(
1542 scroll_pixel_position.x + line.width + padding,
1543 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1544 );
1545 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1546 let origin = content_origin + position + centering_offset;
1547 element.prepaint_as_root(origin, available_space, window, cx);
1548 Some(CreaseTrailerLayout {
1549 element,
1550 bounds: Bounds::new(origin, size),
1551 })
1552 })
1553 .collect()
1554 }
1555
1556 // Folds contained in a hunk are ignored apart from shrinking visual size
1557 // If a fold contains any hunks then that fold line is marked as modified
1558 fn layout_gutter_diff_hunks(
1559 &self,
1560 line_height: Pixels,
1561 gutter_hitbox: &Hitbox,
1562 display_rows: Range<DisplayRow>,
1563 snapshot: &EditorSnapshot,
1564 window: &mut Window,
1565 cx: &mut App,
1566 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1567 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1568 let mut display_hunks = snapshot
1569 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1570 .map(|hunk| (hunk, None))
1571 .collect::<Vec<_>>();
1572 let git_gutter_setting = ProjectSettings::get_global(cx)
1573 .git
1574 .git_gutter
1575 .unwrap_or_default();
1576 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1577 for (hunk, hitbox) in &mut display_hunks {
1578 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1579 let hunk_bounds =
1580 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1581 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1582 }
1583 }
1584 }
1585
1586 display_hunks
1587 }
1588
1589 fn layout_inline_diagnostics(
1590 &self,
1591 line_layouts: &[LineWithInvisibles],
1592 crease_trailers: &[Option<CreaseTrailerLayout>],
1593 row_block_types: &HashMap<DisplayRow, bool>,
1594 content_origin: gpui::Point<Pixels>,
1595 scroll_pixel_position: gpui::Point<Pixels>,
1596 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1597 start_row: DisplayRow,
1598 end_row: DisplayRow,
1599 line_height: Pixels,
1600 em_width: Pixels,
1601 style: &EditorStyle,
1602 window: &mut Window,
1603 cx: &mut App,
1604 ) -> HashMap<DisplayRow, AnyElement> {
1605 let max_severity = ProjectSettings::get_global(cx)
1606 .diagnostics
1607 .inline
1608 .max_severity
1609 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1610 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1611 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1612 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1613 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1614 });
1615
1616 let active_diagnostics_group =
1617 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
1618 Some(group.group_id)
1619 } else {
1620 None
1621 };
1622
1623 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1624 let snapshot = editor.snapshot(window, cx);
1625 editor
1626 .inline_diagnostics
1627 .iter()
1628 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1629 .filter(|(_, diagnostic)| match active_diagnostics_group {
1630 Some(active_diagnostics_group) => {
1631 // Active diagnostics are all shown in the editor already, no need to display them inline
1632 diagnostic.group_id != active_diagnostics_group
1633 }
1634 None => true,
1635 })
1636 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1637 .skip_while(|(point, _)| point.row() < start_row)
1638 .take_while(|(point, _)| point.row() < end_row)
1639 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
1640 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1641 acc.entry(point.row())
1642 .or_insert_with(Vec::new)
1643 .push(diagnostic);
1644 acc
1645 })
1646 });
1647
1648 if diagnostics_by_rows.is_empty() {
1649 return HashMap::default();
1650 }
1651
1652 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1653 &DiagnosticSeverity::ERROR => Color::Error,
1654 &DiagnosticSeverity::WARNING => Color::Warning,
1655 &DiagnosticSeverity::INFORMATION => Color::Info,
1656 &DiagnosticSeverity::HINT => Color::Hint,
1657 _ => Color::Error,
1658 };
1659
1660 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1661 let min_x = ProjectSettings::get_global(cx)
1662 .diagnostics
1663 .inline
1664 .min_column as f32
1665 * em_width;
1666
1667 let mut elements = HashMap::default();
1668 for (row, mut diagnostics) in diagnostics_by_rows {
1669 diagnostics.sort_by_key(|diagnostic| {
1670 (
1671 diagnostic.severity,
1672 std::cmp::Reverse(diagnostic.is_primary),
1673 diagnostic.start.row,
1674 diagnostic.start.column,
1675 )
1676 });
1677
1678 let Some(diagnostic_to_render) = diagnostics
1679 .iter()
1680 .find(|diagnostic| diagnostic.is_primary)
1681 .or_else(|| diagnostics.first())
1682 else {
1683 continue;
1684 };
1685
1686 let pos_y = content_origin.y
1687 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1688
1689 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1690 let pos_x = {
1691 let crease_trailer_layout = &crease_trailers[window_ix];
1692 let line_layout = &line_layouts[window_ix];
1693
1694 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1695 crease_trailer.bounds.right()
1696 } else {
1697 content_origin.x - scroll_pixel_position.x + line_layout.width
1698 };
1699
1700 let padded_line = line_end + padding;
1701 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1702
1703 cmp::max(padded_line, min_start)
1704 };
1705
1706 let behind_inline_completion_popover = inline_completion_popover_origin
1707 .as_ref()
1708 .map_or(false, |inline_completion_popover_origin| {
1709 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1710 });
1711 let opacity = if behind_inline_completion_popover {
1712 0.5
1713 } else {
1714 1.0
1715 };
1716
1717 let mut element = h_flex()
1718 .id(("diagnostic", row.0))
1719 .h(line_height)
1720 .w_full()
1721 .px_1()
1722 .rounded_xs()
1723 .opacity(opacity)
1724 .bg(severity_to_color(&diagnostic_to_render.severity)
1725 .color(cx)
1726 .opacity(0.05))
1727 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1728 .text_sm()
1729 .font_family(style.text.font().family)
1730 .child(diagnostic_to_render.message.clone())
1731 .into_any();
1732
1733 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1734
1735 elements.insert(row, element);
1736 }
1737
1738 elements
1739 }
1740
1741 fn layout_inline_blame(
1742 &self,
1743 display_row: DisplayRow,
1744 row_info: &RowInfo,
1745 line_layout: &LineWithInvisibles,
1746 crease_trailer: Option<&CreaseTrailerLayout>,
1747 em_width: Pixels,
1748 content_origin: gpui::Point<Pixels>,
1749 scroll_pixel_position: gpui::Point<Pixels>,
1750 line_height: Pixels,
1751 window: &mut Window,
1752 cx: &mut App,
1753 ) -> Option<AnyElement> {
1754 if !self
1755 .editor
1756 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1757 {
1758 return None;
1759 }
1760
1761 let editor = self.editor.read(cx);
1762 let blame = editor.blame.clone()?;
1763 let padding = {
1764 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1765 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1766
1767 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1768
1769 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1770 match &inline_completion.completion {
1771 InlineCompletion::Edit {
1772 display_mode: EditDisplayMode::TabAccept,
1773 ..
1774 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1775 _ => {}
1776 }
1777 }
1778
1779 padding * em_width
1780 };
1781
1782 let workspace = editor.workspace()?.downgrade();
1783 let blame_entry = blame
1784 .update(cx, |blame, cx| {
1785 blame.blame_for_rows(&[*row_info], cx).next()
1786 })
1787 .flatten()?;
1788
1789 let mut element = render_inline_blame_entry(
1790 self.editor.clone(),
1791 workspace,
1792 &blame,
1793 blame_entry,
1794 &self.style,
1795 cx,
1796 )?;
1797
1798 let start_y = content_origin.y
1799 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1800
1801 let start_x = {
1802 let line_end = if let Some(crease_trailer) = crease_trailer {
1803 crease_trailer.bounds.right()
1804 } else {
1805 content_origin.x - scroll_pixel_position.x + line_layout.width
1806 };
1807
1808 let padded_line_end = line_end + padding;
1809
1810 let min_column_in_pixels = ProjectSettings::get_global(cx)
1811 .git
1812 .inline_blame
1813 .and_then(|settings| settings.min_column)
1814 .map(|col| self.column_pixels(col as usize, window, cx))
1815 .unwrap_or(px(0.));
1816 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1817
1818 cmp::max(padded_line_end, min_start)
1819 };
1820
1821 let absolute_offset = point(start_x, start_y);
1822 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1823
1824 Some(element)
1825 }
1826
1827 fn layout_blame_entries(
1828 &self,
1829 buffer_rows: &[RowInfo],
1830 em_width: Pixels,
1831 scroll_position: gpui::Point<f32>,
1832 line_height: Pixels,
1833 gutter_hitbox: &Hitbox,
1834 max_width: Option<Pixels>,
1835 window: &mut Window,
1836 cx: &mut App,
1837 ) -> Option<Vec<AnyElement>> {
1838 if !self
1839 .editor
1840 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1841 {
1842 return None;
1843 }
1844
1845 let blame = self.editor.read(cx).blame.clone()?;
1846 let workspace = self.editor.read(cx).workspace()?;
1847 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1848 blame.blame_for_rows(buffer_rows, cx).collect()
1849 });
1850
1851 let width = if let Some(max_width) = max_width {
1852 AvailableSpace::Definite(max_width)
1853 } else {
1854 AvailableSpace::MaxContent
1855 };
1856 let scroll_top = scroll_position.y * line_height;
1857 let start_x = em_width;
1858
1859 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1860 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
1861
1862 let shaped_lines = blamed_rows
1863 .into_iter()
1864 .enumerate()
1865 .flat_map(|(ix, blame_entry)| {
1866 let mut element = render_blame_entry(
1867 ix,
1868 &blame,
1869 blame_entry?,
1870 &self.style,
1871 &mut last_used_color,
1872 self.editor.clone(),
1873 workspace.clone(),
1874 blame_renderer.clone(),
1875 cx,
1876 )?;
1877
1878 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1879 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1880
1881 element.prepaint_as_root(
1882 absolute_offset,
1883 size(width, AvailableSpace::MinContent),
1884 window,
1885 cx,
1886 );
1887
1888 Some(element)
1889 })
1890 .collect();
1891
1892 Some(shaped_lines)
1893 }
1894
1895 fn layout_indent_guides(
1896 &self,
1897 content_origin: gpui::Point<Pixels>,
1898 text_origin: gpui::Point<Pixels>,
1899 visible_buffer_range: Range<MultiBufferRow>,
1900 scroll_pixel_position: gpui::Point<Pixels>,
1901 line_height: Pixels,
1902 snapshot: &DisplaySnapshot,
1903 window: &mut Window,
1904 cx: &mut App,
1905 ) -> Option<Vec<IndentGuideLayout>> {
1906 let indent_guides = self.editor.update(cx, |editor, cx| {
1907 editor.indent_guides(visible_buffer_range, snapshot, cx)
1908 })?;
1909
1910 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1911 editor
1912 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1913 .unwrap_or_default()
1914 });
1915
1916 Some(
1917 indent_guides
1918 .into_iter()
1919 .enumerate()
1920 .filter_map(|(i, indent_guide)| {
1921 let single_indent_width =
1922 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1923 let total_width = single_indent_width * indent_guide.depth as f32;
1924 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1925 if start_x >= text_origin.x {
1926 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1927 indent_guide.start_row..indent_guide.end_row,
1928 line_height,
1929 snapshot,
1930 );
1931
1932 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1933
1934 Some(IndentGuideLayout {
1935 origin: point(start_x, start_y),
1936 length,
1937 single_indent_width,
1938 depth: indent_guide.depth,
1939 active: active_indent_guide_indices.contains(&i),
1940 settings: indent_guide.settings,
1941 })
1942 } else {
1943 None
1944 }
1945 })
1946 .collect(),
1947 )
1948 }
1949
1950 fn calculate_indent_guide_bounds(
1951 row_range: Range<MultiBufferRow>,
1952 line_height: Pixels,
1953 snapshot: &DisplaySnapshot,
1954 ) -> (gpui::Pixels, gpui::Pixels) {
1955 let start_point = Point::new(row_range.start.0, 0);
1956 let end_point = Point::new(row_range.end.0, 0);
1957
1958 let row_range = start_point.to_display_point(snapshot).row()
1959 ..end_point.to_display_point(snapshot).row();
1960
1961 let mut prev_line = start_point;
1962 prev_line.row = prev_line.row.saturating_sub(1);
1963 let prev_line = prev_line.to_display_point(snapshot).row();
1964
1965 let mut cons_line = end_point;
1966 cons_line.row += 1;
1967 let cons_line = cons_line.to_display_point(snapshot).row();
1968
1969 let mut offset_y = row_range.start.0 as f32 * line_height;
1970 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1971
1972 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1973 if row_range.end == cons_line {
1974 length += line_height;
1975 }
1976
1977 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1978 // we want to extend the indent guide to the start of the block.
1979 let mut block_height = 0;
1980 let mut block_offset = 0;
1981 let mut found_excerpt_header = false;
1982 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1983 if matches!(block, Block::ExcerptBoundary { .. }) {
1984 found_excerpt_header = true;
1985 break;
1986 }
1987 block_offset += block.height();
1988 block_height += block.height();
1989 }
1990 if !found_excerpt_header {
1991 offset_y -= block_offset as f32 * line_height;
1992 length += block_height as f32 * line_height;
1993 }
1994
1995 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1996 // we want to ensure that the indent guide stops before the excerpt header.
1997 let mut block_height = 0;
1998 let mut found_excerpt_header = false;
1999 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2000 if matches!(block, Block::ExcerptBoundary { .. }) {
2001 found_excerpt_header = true;
2002 }
2003 block_height += block.height();
2004 }
2005 if found_excerpt_header {
2006 length -= block_height as f32 * line_height;
2007 }
2008
2009 (offset_y, length)
2010 }
2011
2012 fn layout_breakpoints(
2013 &self,
2014 line_height: Pixels,
2015 range: Range<DisplayRow>,
2016 scroll_pixel_position: gpui::Point<Pixels>,
2017 gutter_dimensions: &GutterDimensions,
2018 gutter_hitbox: &Hitbox,
2019 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2020 snapshot: &EditorSnapshot,
2021 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
2022 row_infos: &[RowInfo],
2023 window: &mut Window,
2024 cx: &mut App,
2025 ) -> Vec<AnyElement> {
2026 self.editor.update(cx, |editor, cx| {
2027 breakpoints
2028 .into_iter()
2029 .filter_map(|(display_row, (text_anchor, bp))| {
2030 if row_infos
2031 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2032 .is_some_and(|row_info| {
2033 row_info.expand_info.is_some()
2034 || row_info
2035 .diff_status
2036 .is_some_and(|status| status.is_deleted())
2037 })
2038 {
2039 return None;
2040 }
2041
2042 if range.start > display_row || range.end < display_row {
2043 return None;
2044 }
2045
2046 let row =
2047 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2048 if snapshot.is_line_folded(row) {
2049 return None;
2050 }
2051
2052 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
2053
2054 let button = prepaint_gutter_button(
2055 button,
2056 display_row,
2057 line_height,
2058 gutter_dimensions,
2059 scroll_pixel_position,
2060 gutter_hitbox,
2061 display_hunks,
2062 window,
2063 cx,
2064 );
2065 Some(button)
2066 })
2067 .collect_vec()
2068 })
2069 }
2070
2071 #[allow(clippy::too_many_arguments)]
2072 fn layout_run_indicators(
2073 &self,
2074 line_height: Pixels,
2075 range: Range<DisplayRow>,
2076 row_infos: &[RowInfo],
2077 scroll_pixel_position: gpui::Point<Pixels>,
2078 gutter_dimensions: &GutterDimensions,
2079 gutter_hitbox: &Hitbox,
2080 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2081 snapshot: &EditorSnapshot,
2082 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2083 window: &mut Window,
2084 cx: &mut App,
2085 ) -> Vec<AnyElement> {
2086 self.editor.update(cx, |editor, cx| {
2087 let active_task_indicator_row =
2088 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2089 deployed_from_indicator,
2090 actions,
2091 ..
2092 })) = editor.context_menu.borrow().as_ref()
2093 {
2094 actions
2095 .tasks()
2096 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2097 .or(*deployed_from_indicator)
2098 } else {
2099 None
2100 };
2101
2102 let offset_range_start =
2103 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2104
2105 let offset_range_end =
2106 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2107
2108 editor
2109 .tasks
2110 .iter()
2111 .filter_map(|(_, tasks)| {
2112 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2113 if multibuffer_point < offset_range_start
2114 || multibuffer_point > offset_range_end
2115 {
2116 return None;
2117 }
2118 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2119 let buffer_folded = snapshot
2120 .buffer_snapshot
2121 .buffer_line_for_row(multibuffer_row)
2122 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2123 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2124 .unwrap_or(false);
2125 if buffer_folded {
2126 return None;
2127 }
2128
2129 if snapshot.is_line_folded(multibuffer_row) {
2130 // Skip folded indicators, unless it's the starting line of a fold.
2131 if multibuffer_row
2132 .0
2133 .checked_sub(1)
2134 .map_or(false, |previous_row| {
2135 snapshot.is_line_folded(MultiBufferRow(previous_row))
2136 })
2137 {
2138 return None;
2139 }
2140 }
2141
2142 let display_row = multibuffer_point.to_display_point(snapshot).row();
2143 if row_infos
2144 .get((display_row - range.start).0 as usize)
2145 .is_some_and(|row_info| row_info.expand_info.is_some())
2146 {
2147 return None;
2148 }
2149
2150 let button = editor.render_run_indicator(
2151 &self.style,
2152 Some(display_row) == active_task_indicator_row,
2153 display_row,
2154 breakpoints.remove(&display_row),
2155 cx,
2156 );
2157
2158 let button = prepaint_gutter_button(
2159 button,
2160 display_row,
2161 line_height,
2162 gutter_dimensions,
2163 scroll_pixel_position,
2164 gutter_hitbox,
2165 display_hunks,
2166 window,
2167 cx,
2168 );
2169 Some(button)
2170 })
2171 .collect_vec()
2172 })
2173 }
2174
2175 fn layout_expand_toggles(
2176 &self,
2177 gutter_hitbox: &Hitbox,
2178 gutter_dimensions: GutterDimensions,
2179 em_width: Pixels,
2180 line_height: Pixels,
2181 scroll_position: gpui::Point<f32>,
2182 buffer_rows: &[RowInfo],
2183 window: &mut Window,
2184 cx: &mut App,
2185 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2186 if self.editor.read(cx).disable_expand_excerpt_buttons {
2187 return vec![];
2188 }
2189
2190 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2191
2192 let scroll_top = scroll_position.y * line_height;
2193
2194 let max_line_number_length = self
2195 .editor
2196 .read(cx)
2197 .buffer()
2198 .read(cx)
2199 .snapshot(cx)
2200 .widest_line_number()
2201 .ilog10()
2202 + 1;
2203
2204 let elements = buffer_rows
2205 .into_iter()
2206 .enumerate()
2207 .map(|(ix, row_info)| {
2208 let ExpandInfo {
2209 excerpt_id,
2210 direction,
2211 } = row_info.expand_info?;
2212
2213 let icon_name = match direction {
2214 ExpandExcerptDirection::Up => IconName::ExpandUp,
2215 ExpandExcerptDirection::Down => IconName::ExpandDown,
2216 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2217 };
2218
2219 let git_gutter_width = Self::gutter_strip_width(line_height);
2220 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2221
2222 let editor = self.editor.clone();
2223 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2224 && row_info
2225 .buffer_row
2226 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2227 || gutter_dimensions.right_padding == px(0.);
2228
2229 let width = if is_wide {
2230 available_width - px(2.)
2231 } else {
2232 available_width + em_width - px(2.)
2233 };
2234
2235 let toggle = IconButton::new(("expand", ix), icon_name)
2236 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2237 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2238 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2239 .width(width.into())
2240 .on_click(move |_, window, cx| {
2241 editor.update(cx, |editor, cx| {
2242 editor.expand_excerpt(excerpt_id, direction, window, cx);
2243 });
2244 })
2245 .tooltip(Tooltip::for_action_title(
2246 "Expand Excerpt",
2247 &crate::actions::ExpandExcerpts::default(),
2248 ))
2249 .into_any_element();
2250
2251 let position = point(
2252 git_gutter_width + px(1.),
2253 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2254 );
2255 let origin = gutter_hitbox.origin + position;
2256
2257 Some((toggle, origin))
2258 })
2259 .collect();
2260
2261 elements
2262 }
2263
2264 fn layout_code_actions_indicator(
2265 &self,
2266 line_height: Pixels,
2267 newest_selection_head: DisplayPoint,
2268 scroll_pixel_position: gpui::Point<Pixels>,
2269 gutter_dimensions: &GutterDimensions,
2270 gutter_hitbox: &Hitbox,
2271 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2272 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2273 window: &mut Window,
2274 cx: &mut App,
2275 ) -> Option<AnyElement> {
2276 let mut active = false;
2277 let mut button = None;
2278 let row = newest_selection_head.row();
2279 self.editor.update(cx, |editor, cx| {
2280 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2281 deployed_from_indicator,
2282 ..
2283 })) = editor.context_menu.borrow().as_ref()
2284 {
2285 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2286 };
2287
2288 let breakpoint = breakpoint_points.get(&row);
2289 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2290 });
2291
2292 let button = button?;
2293 breakpoint_points.remove(&row);
2294
2295 let button = prepaint_gutter_button(
2296 button,
2297 row,
2298 line_height,
2299 gutter_dimensions,
2300 scroll_pixel_position,
2301 gutter_hitbox,
2302 display_hunks,
2303 window,
2304 cx,
2305 );
2306
2307 Some(button)
2308 }
2309
2310 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2311 if let Some(index) = participant_index {
2312 cx.theme().players().color_for_participant(index.0)
2313 } else {
2314 cx.theme().players().absent()
2315 }
2316 }
2317
2318 fn calculate_relative_line_numbers(
2319 &self,
2320 snapshot: &EditorSnapshot,
2321 rows: &Range<DisplayRow>,
2322 relative_to: Option<DisplayRow>,
2323 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2324 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2325 let Some(relative_to) = relative_to else {
2326 return relative_rows;
2327 };
2328
2329 let start = rows.start.min(relative_to);
2330 let end = rows.end.max(relative_to);
2331
2332 let buffer_rows = snapshot
2333 .row_infos(start)
2334 .take(1 + end.minus(start) as usize)
2335 .collect::<Vec<_>>();
2336
2337 let head_idx = relative_to.minus(start);
2338 let mut delta = 1;
2339 let mut i = head_idx + 1;
2340 while i < buffer_rows.len() as u32 {
2341 if buffer_rows[i as usize].buffer_row.is_some() {
2342 if rows.contains(&DisplayRow(i + start.0)) {
2343 relative_rows.insert(DisplayRow(i + start.0), delta);
2344 }
2345 delta += 1;
2346 }
2347 i += 1;
2348 }
2349 delta = 1;
2350 i = head_idx.min(buffer_rows.len() as u32 - 1);
2351 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2352 i -= 1;
2353 }
2354
2355 while i > 0 {
2356 i -= 1;
2357 if buffer_rows[i as usize].buffer_row.is_some() {
2358 if rows.contains(&DisplayRow(i + start.0)) {
2359 relative_rows.insert(DisplayRow(i + start.0), delta);
2360 }
2361 delta += 1;
2362 }
2363 }
2364
2365 relative_rows
2366 }
2367
2368 fn layout_line_numbers(
2369 &self,
2370 gutter_hitbox: Option<&Hitbox>,
2371 gutter_dimensions: GutterDimensions,
2372 line_height: Pixels,
2373 scroll_position: gpui::Point<f32>,
2374 rows: Range<DisplayRow>,
2375 buffer_rows: &[RowInfo],
2376 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2377 newest_selection_head: Option<DisplayPoint>,
2378 snapshot: &EditorSnapshot,
2379 window: &mut Window,
2380 cx: &mut App,
2381 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2382 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2383 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
2384 });
2385 if !include_line_numbers {
2386 return Arc::default();
2387 }
2388
2389 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2390 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2391 let newest = editor.selections.newest::<Point>(cx);
2392 SelectionLayout::new(
2393 newest,
2394 editor.selections.line_mode,
2395 editor.cursor_shape,
2396 &snapshot.display_snapshot,
2397 true,
2398 true,
2399 None,
2400 )
2401 .head
2402 });
2403 let is_relative = editor.should_use_relative_line_numbers(cx);
2404 (newest_selection_head, is_relative)
2405 });
2406
2407 let relative_to = if is_relative {
2408 Some(newest_selection_head.row())
2409 } else {
2410 None
2411 };
2412 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2413 let mut line_number = String::new();
2414 let line_numbers = buffer_rows
2415 .into_iter()
2416 .enumerate()
2417 .flat_map(|(ix, row_info)| {
2418 let display_row = DisplayRow(rows.start.0 + ix as u32);
2419 line_number.clear();
2420 let non_relative_number = row_info.buffer_row? + 1;
2421 let number = relative_rows
2422 .get(&display_row)
2423 .unwrap_or(&non_relative_number);
2424 write!(&mut line_number, "{number}").unwrap();
2425 if row_info
2426 .diff_status
2427 .is_some_and(|status| status.is_deleted())
2428 {
2429 return None;
2430 }
2431
2432 let color = active_rows
2433 .get(&display_row)
2434 .map(|spec| {
2435 if spec.breakpoint {
2436 cx.theme().colors().debugger_accent
2437 } else {
2438 cx.theme().colors().editor_active_line_number
2439 }
2440 })
2441 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2442 let shaped_line = self
2443 .shape_line_number(SharedString::from(&line_number), color, window)
2444 .log_err()?;
2445 let scroll_top = scroll_position.y * line_height;
2446 let line_origin = gutter_hitbox.map(|hitbox| {
2447 hitbox.origin
2448 + point(
2449 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2450 ix as f32 * line_height - (scroll_top % line_height),
2451 )
2452 });
2453
2454 #[cfg(not(test))]
2455 let hitbox = line_origin.map(|line_origin| {
2456 window.insert_hitbox(
2457 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2458 false,
2459 )
2460 });
2461 #[cfg(test)]
2462 let hitbox = {
2463 let _ = line_origin;
2464 None
2465 };
2466
2467 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2468 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2469 let line_number = LineNumberLayout {
2470 shaped_line,
2471 hitbox,
2472 };
2473 Some((multi_buffer_row, line_number))
2474 })
2475 .collect();
2476 Arc::new(line_numbers)
2477 }
2478
2479 fn layout_crease_toggles(
2480 &self,
2481 rows: Range<DisplayRow>,
2482 row_infos: &[RowInfo],
2483 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2484 snapshot: &EditorSnapshot,
2485 window: &mut Window,
2486 cx: &mut App,
2487 ) -> Vec<Option<AnyElement>> {
2488 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2489 && snapshot.mode.is_full()
2490 && self.editor.read(cx).is_singleton(cx);
2491 if include_fold_statuses {
2492 row_infos
2493 .into_iter()
2494 .enumerate()
2495 .map(|(ix, info)| {
2496 if info.expand_info.is_some() {
2497 return None;
2498 }
2499 let row = info.multibuffer_row?;
2500 let display_row = DisplayRow(rows.start.0 + ix as u32);
2501 let active = active_rows.contains_key(&display_row);
2502
2503 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2504 })
2505 .collect()
2506 } else {
2507 Vec::new()
2508 }
2509 }
2510
2511 fn layout_crease_trailers(
2512 &self,
2513 buffer_rows: impl IntoIterator<Item = RowInfo>,
2514 snapshot: &EditorSnapshot,
2515 window: &mut Window,
2516 cx: &mut App,
2517 ) -> Vec<Option<AnyElement>> {
2518 buffer_rows
2519 .into_iter()
2520 .map(|row_info| {
2521 if row_info.expand_info.is_some() {
2522 return None;
2523 }
2524 if let Some(row) = row_info.multibuffer_row {
2525 snapshot.render_crease_trailer(row, window, cx)
2526 } else {
2527 None
2528 }
2529 })
2530 .collect()
2531 }
2532
2533 fn layout_lines(
2534 rows: Range<DisplayRow>,
2535 snapshot: &EditorSnapshot,
2536 style: &EditorStyle,
2537 editor_width: Pixels,
2538 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2539 window: &mut Window,
2540 cx: &mut App,
2541 ) -> Vec<LineWithInvisibles> {
2542 if rows.start >= rows.end {
2543 return Vec::new();
2544 }
2545
2546 // Show the placeholder when the editor is empty
2547 if snapshot.is_empty() {
2548 let font_size = style.text.font_size.to_pixels(window.rem_size());
2549 let placeholder_color = cx.theme().colors().text_placeholder;
2550 let placeholder_text = snapshot.placeholder_text();
2551
2552 let placeholder_lines = placeholder_text
2553 .as_ref()
2554 .map_or("", AsRef::as_ref)
2555 .split('\n')
2556 .skip(rows.start.0 as usize)
2557 .chain(iter::repeat(""))
2558 .take(rows.len());
2559 placeholder_lines
2560 .filter_map(move |line| {
2561 let run = TextRun {
2562 len: line.len(),
2563 font: style.text.font(),
2564 color: placeholder_color,
2565 background_color: None,
2566 underline: Default::default(),
2567 strikethrough: None,
2568 };
2569 window
2570 .text_system()
2571 .shape_line(line.to_string().into(), font_size, &[run])
2572 .log_err()
2573 })
2574 .map(|line| LineWithInvisibles {
2575 width: line.width,
2576 len: line.len,
2577 fragments: smallvec![LineFragment::Text(line)],
2578 invisibles: Vec::new(),
2579 font_size,
2580 })
2581 .collect()
2582 } else {
2583 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2584 LineWithInvisibles::from_chunks(
2585 chunks,
2586 &style,
2587 MAX_LINE_LEN,
2588 rows.len(),
2589 snapshot.mode,
2590 editor_width,
2591 is_row_soft_wrapped,
2592 window,
2593 cx,
2594 )
2595 }
2596 }
2597
2598 fn prepaint_lines(
2599 &self,
2600 start_row: DisplayRow,
2601 line_layouts: &mut [LineWithInvisibles],
2602 line_height: Pixels,
2603 scroll_pixel_position: gpui::Point<Pixels>,
2604 content_origin: gpui::Point<Pixels>,
2605 window: &mut Window,
2606 cx: &mut App,
2607 ) -> SmallVec<[AnyElement; 1]> {
2608 let mut line_elements = SmallVec::new();
2609 for (ix, line) in line_layouts.iter_mut().enumerate() {
2610 let row = start_row + DisplayRow(ix as u32);
2611 line.prepaint(
2612 line_height,
2613 scroll_pixel_position,
2614 row,
2615 content_origin,
2616 &mut line_elements,
2617 window,
2618 cx,
2619 );
2620 }
2621 line_elements
2622 }
2623
2624 fn render_block(
2625 &self,
2626 block: &Block,
2627 available_width: AvailableSpace,
2628 block_id: BlockId,
2629 block_row_start: DisplayRow,
2630 snapshot: &EditorSnapshot,
2631 text_x: Pixels,
2632 rows: &Range<DisplayRow>,
2633 line_layouts: &[LineWithInvisibles],
2634 gutter_dimensions: &GutterDimensions,
2635 line_height: Pixels,
2636 em_width: Pixels,
2637 text_hitbox: &Hitbox,
2638 editor_width: Pixels,
2639 scroll_width: &mut Pixels,
2640 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2641 row_block_types: &mut HashMap<DisplayRow, bool>,
2642 selections: &[Selection<Point>],
2643 selected_buffer_ids: &Vec<BufferId>,
2644 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2645 sticky_header_excerpt_id: Option<ExcerptId>,
2646 window: &mut Window,
2647 cx: &mut App,
2648 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
2649 let mut x_position = None;
2650 let mut element = match block {
2651 Block::Custom(custom) => {
2652 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
2653 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
2654 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
2655 return None;
2656 }
2657 let align_to = block_start.to_display_point(snapshot);
2658 let x_and_width = |layout: &LineWithInvisibles| {
2659 Some((
2660 text_x + layout.x_for_index(align_to.column() as usize),
2661 text_x + layout.width,
2662 ))
2663 };
2664 x_position = if rows.contains(&align_to.row()) {
2665 x_and_width(&line_layouts[align_to.row().minus(rows.start) as usize])
2666 } else {
2667 x_and_width(&layout_line(
2668 align_to.row(),
2669 snapshot,
2670 &self.style,
2671 editor_width,
2672 is_row_soft_wrapped,
2673 window,
2674 cx,
2675 ))
2676 };
2677
2678 let anchor_x = x_position.unwrap().0;
2679
2680 let selected = selections
2681 .binary_search_by(|selection| {
2682 if selection.end <= block_start {
2683 Ordering::Less
2684 } else if selection.start >= block_end {
2685 Ordering::Greater
2686 } else {
2687 Ordering::Equal
2688 }
2689 })
2690 .is_ok();
2691
2692 div()
2693 .size_full()
2694 .child(custom.render(&mut BlockContext {
2695 window,
2696 app: cx,
2697 anchor_x,
2698 gutter_dimensions,
2699 line_height,
2700 em_width,
2701 block_id,
2702 selected,
2703 max_width: text_hitbox.size.width.max(*scroll_width),
2704 editor_style: &self.style,
2705 }))
2706 .into_any()
2707 }
2708
2709 Block::FoldedBuffer {
2710 first_excerpt,
2711 height,
2712 ..
2713 } => {
2714 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2715 let result = v_flex().id(block_id).w_full();
2716
2717 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2718 result
2719 .child(self.render_buffer_header(
2720 first_excerpt,
2721 true,
2722 selected,
2723 false,
2724 jump_data,
2725 window,
2726 cx,
2727 ))
2728 .into_any_element()
2729 }
2730
2731 Block::ExcerptBoundary {
2732 excerpt,
2733 height,
2734 starts_new_buffer,
2735 ..
2736 } => {
2737 let color = cx.theme().colors().clone();
2738 let mut result = v_flex().id(block_id).w_full();
2739
2740 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2741
2742 if *starts_new_buffer {
2743 if sticky_header_excerpt_id != Some(excerpt.id) {
2744 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2745
2746 result = result.child(self.render_buffer_header(
2747 excerpt, false, selected, false, jump_data, window, cx,
2748 ));
2749 } else {
2750 result =
2751 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2752 }
2753 } else {
2754 result = result.child(
2755 h_flex().relative().child(
2756 div()
2757 .top(line_height / 2.)
2758 .absolute()
2759 .w_full()
2760 .h_px()
2761 .bg(color.border_variant),
2762 ),
2763 );
2764 };
2765
2766 result.into_any()
2767 }
2768 };
2769
2770 // Discover the element's content height, then round up to the nearest multiple of line height.
2771 let preliminary_size = element.layout_as_root(
2772 size(available_width, AvailableSpace::MinContent),
2773 window,
2774 cx,
2775 );
2776 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2777 let final_size = if preliminary_size.height == quantized_height {
2778 preliminary_size
2779 } else {
2780 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2781 };
2782 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
2783
2784 let mut row = block_row_start;
2785 let mut x_offset = px(0.);
2786 let mut is_block = true;
2787
2788 if let BlockId::Custom(custom_block_id) = block_id {
2789 if block.has_height() {
2790 if block.place_near() {
2791 if let Some((x_target, line_width)) = x_position {
2792 let margin = em_width * 2;
2793 if line_width + final_size.width + margin
2794 < editor_width + gutter_dimensions.full_width()
2795 && !row_block_types.contains_key(&(row - 1))
2796 && element_height_in_lines == 1
2797 {
2798 x_offset = line_width + margin;
2799 row = row - 1;
2800 is_block = false;
2801 element_height_in_lines = 0;
2802 row_block_types.insert(row, is_block);
2803 } else {
2804 let max_offset =
2805 editor_width + gutter_dimensions.full_width() - final_size.width;
2806 let min_offset = (x_target + em_width - final_size.width)
2807 .max(gutter_dimensions.full_width());
2808 x_offset = x_target.min(max_offset).max(min_offset);
2809 }
2810 }
2811 };
2812 if element_height_in_lines != block.height() {
2813 resized_blocks.insert(custom_block_id, element_height_in_lines);
2814 }
2815 }
2816 }
2817 for i in 0..element_height_in_lines {
2818 row_block_types.insert(row + i, is_block);
2819 }
2820
2821 Some((element, final_size, row, x_offset))
2822 }
2823
2824 fn render_buffer_header(
2825 &self,
2826 for_excerpt: &ExcerptInfo,
2827 is_folded: bool,
2828 is_selected: bool,
2829 is_sticky: bool,
2830 jump_data: JumpData,
2831 window: &mut Window,
2832 cx: &mut App,
2833 ) -> Div {
2834 let editor = self.editor.read(cx);
2835 let file_status = editor
2836 .buffer
2837 .read(cx)
2838 .all_diff_hunks_expanded()
2839 .then(|| {
2840 editor
2841 .project
2842 .as_ref()?
2843 .read(cx)
2844 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2845 })
2846 .flatten();
2847
2848 let include_root = editor
2849 .project
2850 .as_ref()
2851 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2852 .unwrap_or_default();
2853 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
2854 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2855 let filename = path
2856 .as_ref()
2857 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2858 let parent_path = path.as_ref().and_then(|path| {
2859 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2860 });
2861 let focus_handle = editor.focus_handle(cx);
2862 let colors = cx.theme().colors();
2863
2864 div()
2865 .p_1()
2866 .w_full()
2867 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2868 .child(
2869 h_flex()
2870 .size_full()
2871 .gap_2()
2872 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2873 .pl_0p5()
2874 .pr_5()
2875 .rounded_sm()
2876 .when(is_sticky, |el| el.shadow_md())
2877 .border_1()
2878 .map(|div| {
2879 let border_color = if is_selected
2880 && is_folded
2881 && focus_handle.contains_focused(window, cx)
2882 {
2883 colors.border_focused
2884 } else {
2885 colors.border
2886 };
2887 div.border_color(border_color)
2888 })
2889 .bg(colors.editor_subheader_background)
2890 .hover(|style| style.bg(colors.element_hover))
2891 .map(|header| {
2892 let editor = self.editor.clone();
2893 let buffer_id = for_excerpt.buffer_id;
2894 let toggle_chevron_icon =
2895 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2896 header.child(
2897 div()
2898 .hover(|style| style.bg(colors.element_selected))
2899 .rounded_xs()
2900 .child(
2901 ButtonLike::new("toggle-buffer-fold")
2902 .style(ui::ButtonStyle::Transparent)
2903 .height(px(28.).into())
2904 .width(px(28.).into())
2905 .children(toggle_chevron_icon)
2906 .tooltip({
2907 let focus_handle = focus_handle.clone();
2908 move |window, cx| {
2909 Tooltip::for_action_in(
2910 "Toggle Excerpt Fold",
2911 &ToggleFold,
2912 &focus_handle,
2913 window,
2914 cx,
2915 )
2916 }
2917 })
2918 .on_click(move |_, _, cx| {
2919 if is_folded {
2920 editor.update(cx, |editor, cx| {
2921 editor.unfold_buffer(buffer_id, cx);
2922 });
2923 } else {
2924 editor.update(cx, |editor, cx| {
2925 editor.fold_buffer(buffer_id, cx);
2926 });
2927 }
2928 }),
2929 ),
2930 )
2931 })
2932 .children(
2933 editor
2934 .addons
2935 .values()
2936 .filter_map(|addon| {
2937 addon.render_buffer_header_controls(for_excerpt, window, cx)
2938 })
2939 .take(1),
2940 )
2941 .child(
2942 h_flex()
2943 .cursor_pointer()
2944 .id("path header block")
2945 .size_full()
2946 .justify_between()
2947 .child(
2948 h_flex()
2949 .gap_2()
2950 .child(
2951 Label::new(
2952 filename
2953 .map(SharedString::from)
2954 .unwrap_or_else(|| "untitled".into()),
2955 )
2956 .single_line()
2957 .when_some(
2958 file_status,
2959 |el, status| {
2960 el.color(if status.is_conflicted() {
2961 Color::Conflict
2962 } else if status.is_modified() {
2963 Color::Modified
2964 } else if status.is_deleted() {
2965 Color::Disabled
2966 } else {
2967 Color::Created
2968 })
2969 .when(status.is_deleted(), |el| el.strikethrough())
2970 },
2971 ),
2972 )
2973 .when_some(parent_path, |then, path| {
2974 then.child(div().child(path).text_color(
2975 if file_status.is_some_and(FileStatus::is_deleted) {
2976 colors.text_disabled
2977 } else {
2978 colors.text_muted
2979 },
2980 ))
2981 }),
2982 )
2983 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
2984 el.child(
2985 h_flex()
2986 .id("jump-to-file-button")
2987 .gap_2p5()
2988 .child(Label::new("Jump To File"))
2989 .children(
2990 KeyBinding::for_action_in(
2991 &OpenExcerpts,
2992 &focus_handle,
2993 window,
2994 cx,
2995 )
2996 .map(|binding| binding.into_any_element()),
2997 ),
2998 )
2999 })
3000 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3001 .on_click(window.listener_for(&self.editor, {
3002 move |editor, e: &ClickEvent, window, cx| {
3003 editor.open_excerpts_common(
3004 Some(jump_data.clone()),
3005 e.down.modifiers.secondary(),
3006 window,
3007 cx,
3008 );
3009 }
3010 })),
3011 ),
3012 )
3013 }
3014
3015 fn render_blocks(
3016 &self,
3017 rows: Range<DisplayRow>,
3018 snapshot: &EditorSnapshot,
3019 hitbox: &Hitbox,
3020 text_hitbox: &Hitbox,
3021 editor_width: Pixels,
3022 scroll_width: &mut Pixels,
3023 gutter_dimensions: &GutterDimensions,
3024 em_width: Pixels,
3025 text_x: Pixels,
3026 line_height: Pixels,
3027 line_layouts: &mut [LineWithInvisibles],
3028 selections: &[Selection<Point>],
3029 selected_buffer_ids: &Vec<BufferId>,
3030 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3031 sticky_header_excerpt_id: Option<ExcerptId>,
3032 window: &mut Window,
3033 cx: &mut App,
3034 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3035 let (fixed_blocks, non_fixed_blocks) = snapshot
3036 .blocks_in_range(rows.clone())
3037 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3038
3039 let mut focused_block = self
3040 .editor
3041 .update(cx, |editor, _| editor.take_focused_block());
3042 let mut fixed_block_max_width = Pixels::ZERO;
3043 let mut blocks = Vec::new();
3044 let mut resized_blocks = HashMap::default();
3045 let mut row_block_types = HashMap::default();
3046
3047 for (row, block) in fixed_blocks {
3048 let block_id = block.id();
3049
3050 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3051 focused_block = None;
3052 }
3053
3054 if let Some((element, element_size, row, x_offset)) = self.render_block(
3055 block,
3056 AvailableSpace::MinContent,
3057 block_id,
3058 row,
3059 snapshot,
3060 text_x,
3061 &rows,
3062 line_layouts,
3063 gutter_dimensions,
3064 line_height,
3065 em_width,
3066 text_hitbox,
3067 editor_width,
3068 scroll_width,
3069 &mut resized_blocks,
3070 &mut row_block_types,
3071 selections,
3072 selected_buffer_ids,
3073 is_row_soft_wrapped,
3074 sticky_header_excerpt_id,
3075 window,
3076 cx,
3077 ) {
3078 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3079 blocks.push(BlockLayout {
3080 id: block_id,
3081 x_offset,
3082 row: Some(row),
3083 element,
3084 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3085 style: BlockStyle::Fixed,
3086 overlaps_gutter: true,
3087 is_buffer_header: block.is_buffer_header(),
3088 });
3089 }
3090 }
3091
3092 for (row, block) in non_fixed_blocks {
3093 let style = block.style();
3094 let width = match (style, block.place_near()) {
3095 (_, true) => AvailableSpace::MinContent,
3096 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3097 (BlockStyle::Flex, _) => hitbox
3098 .size
3099 .width
3100 .max(fixed_block_max_width)
3101 .max(gutter_dimensions.width + *scroll_width)
3102 .into(),
3103 (BlockStyle::Fixed, _) => unreachable!(),
3104 };
3105 let block_id = block.id();
3106
3107 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3108 focused_block = None;
3109 }
3110
3111 if let Some((element, element_size, row, x_offset)) = self.render_block(
3112 block,
3113 width,
3114 block_id,
3115 row,
3116 snapshot,
3117 text_x,
3118 &rows,
3119 line_layouts,
3120 gutter_dimensions,
3121 line_height,
3122 em_width,
3123 text_hitbox,
3124 editor_width,
3125 scroll_width,
3126 &mut resized_blocks,
3127 &mut row_block_types,
3128 selections,
3129 selected_buffer_ids,
3130 is_row_soft_wrapped,
3131 sticky_header_excerpt_id,
3132 window,
3133 cx,
3134 ) {
3135 blocks.push(BlockLayout {
3136 id: block_id,
3137 x_offset,
3138 row: Some(row),
3139 element,
3140 available_space: size(width, element_size.height.into()),
3141 style,
3142 overlaps_gutter: !block.place_near(),
3143 is_buffer_header: block.is_buffer_header(),
3144 });
3145 }
3146 }
3147
3148 if let Some(focused_block) = focused_block {
3149 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3150 if focus_handle.is_focused(window) {
3151 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3152 let style = block.style();
3153 let width = match style {
3154 BlockStyle::Fixed => AvailableSpace::MinContent,
3155 BlockStyle::Flex => AvailableSpace::Definite(
3156 hitbox
3157 .size
3158 .width
3159 .max(fixed_block_max_width)
3160 .max(gutter_dimensions.width + *scroll_width),
3161 ),
3162 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3163 };
3164
3165 if let Some((element, element_size, _, x_offset)) = self.render_block(
3166 &block,
3167 width,
3168 focused_block.id,
3169 rows.end,
3170 snapshot,
3171 text_x,
3172 &rows,
3173 line_layouts,
3174 gutter_dimensions,
3175 line_height,
3176 em_width,
3177 text_hitbox,
3178 editor_width,
3179 scroll_width,
3180 &mut resized_blocks,
3181 &mut row_block_types,
3182 selections,
3183 selected_buffer_ids,
3184 is_row_soft_wrapped,
3185 sticky_header_excerpt_id,
3186 window,
3187 cx,
3188 ) {
3189 blocks.push(BlockLayout {
3190 id: block.id(),
3191 x_offset,
3192 row: None,
3193 element,
3194 available_space: size(width, element_size.height.into()),
3195 style,
3196 overlaps_gutter: true,
3197 is_buffer_header: block.is_buffer_header(),
3198 });
3199 }
3200 }
3201 }
3202 }
3203 }
3204
3205 if resized_blocks.is_empty() {
3206 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3207 Ok((blocks, row_block_types))
3208 } else {
3209 Err(resized_blocks)
3210 }
3211 }
3212
3213 fn layout_blocks(
3214 &self,
3215 blocks: &mut Vec<BlockLayout>,
3216 hitbox: &Hitbox,
3217 line_height: Pixels,
3218 scroll_pixel_position: gpui::Point<Pixels>,
3219 window: &mut Window,
3220 cx: &mut App,
3221 ) {
3222 for block in blocks {
3223 let mut origin = if let Some(row) = block.row {
3224 hitbox.origin
3225 + point(
3226 block.x_offset,
3227 row.as_f32() * line_height - scroll_pixel_position.y,
3228 )
3229 } else {
3230 // Position the block outside the visible area
3231 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3232 };
3233
3234 if !matches!(block.style, BlockStyle::Sticky) {
3235 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3236 }
3237
3238 let focus_handle =
3239 block
3240 .element
3241 .prepaint_as_root(origin, block.available_space, window, cx);
3242
3243 if let Some(focus_handle) = focus_handle {
3244 self.editor.update(cx, |editor, _cx| {
3245 editor.set_focused_block(FocusedBlock {
3246 id: block.id,
3247 focus_handle: focus_handle.downgrade(),
3248 });
3249 });
3250 }
3251 }
3252 }
3253
3254 fn layout_sticky_buffer_header(
3255 &self,
3256 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3257 scroll_position: f32,
3258 line_height: Pixels,
3259 snapshot: &EditorSnapshot,
3260 hitbox: &Hitbox,
3261 selected_buffer_ids: &Vec<BufferId>,
3262 blocks: &[BlockLayout],
3263 window: &mut Window,
3264 cx: &mut App,
3265 ) -> AnyElement {
3266 let jump_data = header_jump_data(
3267 snapshot,
3268 DisplayRow(scroll_position as u32),
3269 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3270 excerpt,
3271 );
3272
3273 let editor_bg_color = cx.theme().colors().editor_background;
3274
3275 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3276
3277 let mut header = v_flex()
3278 .relative()
3279 .child(
3280 div()
3281 .w(hitbox.bounds.size.width)
3282 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3283 .bg(linear_gradient(
3284 0.,
3285 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3286 linear_color_stop(editor_bg_color, 0.6),
3287 ))
3288 .absolute()
3289 .top_0(),
3290 )
3291 .child(
3292 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3293 .into_any_element(),
3294 )
3295 .into_any_element();
3296
3297 let mut origin = hitbox.origin;
3298 // Move floating header up to avoid colliding with the next buffer header.
3299 for block in blocks.iter() {
3300 if !block.is_buffer_header {
3301 continue;
3302 }
3303
3304 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3305 continue;
3306 };
3307
3308 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3309 let offset = scroll_position - max_row as f32;
3310
3311 if offset > 0.0 {
3312 origin.y -= offset * line_height;
3313 }
3314 break;
3315 }
3316
3317 let size = size(
3318 AvailableSpace::Definite(hitbox.size.width),
3319 AvailableSpace::MinContent,
3320 );
3321
3322 header.prepaint_as_root(origin, size, window, cx);
3323
3324 header
3325 }
3326
3327 fn layout_cursor_popovers(
3328 &self,
3329 line_height: Pixels,
3330 text_hitbox: &Hitbox,
3331 content_origin: gpui::Point<Pixels>,
3332 start_row: DisplayRow,
3333 scroll_pixel_position: gpui::Point<Pixels>,
3334 line_layouts: &[LineWithInvisibles],
3335 cursor: DisplayPoint,
3336 cursor_point: Point,
3337 style: &EditorStyle,
3338 window: &mut Window,
3339 cx: &mut App,
3340 ) {
3341 let mut min_menu_height = Pixels::ZERO;
3342 let mut max_menu_height = Pixels::ZERO;
3343 let mut height_above_menu = Pixels::ZERO;
3344 let height_below_menu = Pixels::ZERO;
3345 let mut edit_prediction_popover_visible = false;
3346 let mut context_menu_visible = false;
3347 let context_menu_placement;
3348
3349 {
3350 let editor = self.editor.read(cx);
3351 if editor
3352 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3353 {
3354 height_above_menu +=
3355 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3356 edit_prediction_popover_visible = true;
3357 }
3358
3359 if editor.context_menu_visible() {
3360 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3361 let (min_height_in_lines, max_height_in_lines) = editor
3362 .context_menu_options
3363 .as_ref()
3364 .map_or((3, 12), |options| {
3365 (options.min_entries_visible, options.max_entries_visible)
3366 });
3367
3368 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3369 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3370 context_menu_visible = true;
3371 }
3372 }
3373 context_menu_placement = editor
3374 .context_menu_options
3375 .as_ref()
3376 .and_then(|options| options.placement.clone());
3377 }
3378
3379 let visible = edit_prediction_popover_visible || context_menu_visible;
3380 if !visible {
3381 return;
3382 }
3383
3384 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3385 let target_position = content_origin
3386 + gpui::Point {
3387 x: cmp::max(
3388 px(0.),
3389 cursor_row_layout.x_for_index(cursor.column() as usize)
3390 - scroll_pixel_position.x,
3391 ),
3392 y: cmp::max(
3393 px(0.),
3394 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3395 ),
3396 };
3397
3398 let viewport_bounds =
3399 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3400 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3401 ..Default::default()
3402 });
3403
3404 let min_height = height_above_menu + min_menu_height + height_below_menu;
3405 let max_height = height_above_menu + max_menu_height + height_below_menu;
3406 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3407 target_position,
3408 line_height,
3409 min_height,
3410 max_height,
3411 context_menu_placement,
3412 text_hitbox,
3413 viewport_bounds,
3414 window,
3415 cx,
3416 |height, max_width_for_stable_x, y_flipped, window, cx| {
3417 // First layout the menu to get its size - others can be at least this wide.
3418 let context_menu = if context_menu_visible {
3419 let menu_height = if y_flipped {
3420 height - height_below_menu
3421 } else {
3422 height - height_above_menu
3423 };
3424 let mut element = self
3425 .render_context_menu(line_height, menu_height, window, cx)
3426 .expect("Visible context menu should always render.");
3427 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3428 Some((CursorPopoverType::CodeContextMenu, element, size))
3429 } else {
3430 None
3431 };
3432 let min_width = context_menu
3433 .as_ref()
3434 .map_or(px(0.), |(_, _, size)| size.width);
3435 let max_width = max_width_for_stable_x.max(
3436 context_menu
3437 .as_ref()
3438 .map_or(px(0.), |(_, _, size)| size.width),
3439 );
3440
3441 let edit_prediction = if edit_prediction_popover_visible {
3442 self.editor.update(cx, move |editor, cx| {
3443 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3444 let mut element = editor.render_edit_prediction_cursor_popover(
3445 min_width,
3446 max_width,
3447 cursor_point,
3448 style,
3449 accept_binding.keystroke(),
3450 window,
3451 cx,
3452 )?;
3453 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3454 Some((CursorPopoverType::EditPrediction, element, size))
3455 })
3456 } else {
3457 None
3458 };
3459 vec![edit_prediction, context_menu]
3460 .into_iter()
3461 .flatten()
3462 .collect::<Vec<_>>()
3463 },
3464 ) else {
3465 return;
3466 };
3467
3468 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3469 .iter()
3470 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3471 else {
3472 return;
3473 };
3474 let last_ix = laid_out_popovers.len() - 1;
3475 let menu_is_last = menu_ix == last_ix;
3476 let first_popover_bounds = laid_out_popovers[0].1;
3477 let last_popover_bounds = laid_out_popovers[last_ix].1;
3478
3479 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3480 // right, and otherwise it goes below or to the right.
3481 let mut target_bounds = Bounds::from_corners(
3482 first_popover_bounds.origin,
3483 last_popover_bounds.bottom_right(),
3484 );
3485 target_bounds.size.width = menu_bounds.size.width;
3486
3487 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3488 // based on this is preferred for layout stability.
3489 let mut max_target_bounds = target_bounds;
3490 max_target_bounds.size.height = max_height;
3491 if y_flipped {
3492 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3493 }
3494
3495 // Add spacing around `target_bounds` and `max_target_bounds`.
3496 let mut extend_amount = Edges::all(MENU_GAP);
3497 if y_flipped {
3498 extend_amount.bottom = line_height;
3499 } else {
3500 extend_amount.top = line_height;
3501 }
3502 let target_bounds = target_bounds.extend(extend_amount);
3503 let max_target_bounds = max_target_bounds.extend(extend_amount);
3504
3505 let must_place_above_or_below =
3506 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3507 laid_out_popovers[menu_ix + 1..]
3508 .iter()
3509 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3510 } else {
3511 false
3512 };
3513
3514 self.layout_context_menu_aside(
3515 y_flipped,
3516 *menu_bounds,
3517 target_bounds,
3518 max_target_bounds,
3519 max_menu_height,
3520 must_place_above_or_below,
3521 text_hitbox,
3522 viewport_bounds,
3523 window,
3524 cx,
3525 );
3526 }
3527
3528 fn layout_gutter_menu(
3529 &self,
3530 line_height: Pixels,
3531 text_hitbox: &Hitbox,
3532 content_origin: gpui::Point<Pixels>,
3533 scroll_pixel_position: gpui::Point<Pixels>,
3534 gutter_overshoot: Pixels,
3535 window: &mut Window,
3536 cx: &mut App,
3537 ) {
3538 let editor = self.editor.read(cx);
3539 if !editor.context_menu_visible() {
3540 return;
3541 }
3542 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3543 editor.context_menu_origin()
3544 else {
3545 return;
3546 };
3547 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3548 // indicator than just a plain first column of the text field.
3549 let target_position = content_origin
3550 + gpui::Point {
3551 x: -gutter_overshoot,
3552 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3553 };
3554
3555 let (min_height_in_lines, max_height_in_lines) = editor
3556 .context_menu_options
3557 .as_ref()
3558 .map_or((3, 12), |options| {
3559 (options.min_entries_visible, options.max_entries_visible)
3560 });
3561
3562 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3563 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3564 let viewport_bounds =
3565 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3566 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3567 ..Default::default()
3568 });
3569 self.layout_popovers_above_or_below_line(
3570 target_position,
3571 line_height,
3572 min_height,
3573 max_height,
3574 editor
3575 .context_menu_options
3576 .as_ref()
3577 .and_then(|options| options.placement.clone()),
3578 text_hitbox,
3579 viewport_bounds,
3580 window,
3581 cx,
3582 move |height, _max_width_for_stable_x, _, window, cx| {
3583 let mut element = self
3584 .render_context_menu(line_height, height, window, cx)
3585 .expect("Visible context menu should always render.");
3586 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3587 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3588 },
3589 );
3590 }
3591
3592 fn layout_popovers_above_or_below_line(
3593 &self,
3594 target_position: gpui::Point<Pixels>,
3595 line_height: Pixels,
3596 min_height: Pixels,
3597 max_height: Pixels,
3598 placement: Option<ContextMenuPlacement>,
3599 text_hitbox: &Hitbox,
3600 viewport_bounds: Bounds<Pixels>,
3601 window: &mut Window,
3602 cx: &mut App,
3603 make_sized_popovers: impl FnOnce(
3604 Pixels,
3605 Pixels,
3606 bool,
3607 &mut Window,
3608 &mut App,
3609 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3610 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3611 let text_style = TextStyleRefinement {
3612 line_height: Some(DefiniteLength::Fraction(
3613 BufferLineHeight::Comfortable.value(),
3614 )),
3615 ..Default::default()
3616 };
3617 window.with_text_style(Some(text_style), |window| {
3618 // If the max height won't fit below and there is more space above, put it above the line.
3619 let bottom_y_when_flipped = target_position.y - line_height;
3620 let available_above = bottom_y_when_flipped - text_hitbox.top();
3621 let available_below = text_hitbox.bottom() - target_position.y;
3622 let y_overflows_below = max_height > available_below;
3623 let mut y_flipped = match placement {
3624 Some(ContextMenuPlacement::Above) => true,
3625 Some(ContextMenuPlacement::Below) => false,
3626 None => y_overflows_below && available_above > available_below,
3627 };
3628 let mut height = cmp::min(
3629 max_height,
3630 if y_flipped {
3631 available_above
3632 } else {
3633 available_below
3634 },
3635 );
3636
3637 // If the min height doesn't fit within text bounds, instead fit within the window.
3638 if height < min_height {
3639 let available_above = bottom_y_when_flipped;
3640 let available_below = viewport_bounds.bottom() - target_position.y;
3641 let (y_flipped_override, height_override) = match placement {
3642 Some(ContextMenuPlacement::Above) => {
3643 (true, cmp::min(available_above, min_height))
3644 }
3645 Some(ContextMenuPlacement::Below) => {
3646 (false, cmp::min(available_below, min_height))
3647 }
3648 None => {
3649 if available_below > min_height {
3650 (false, min_height)
3651 } else if available_above > min_height {
3652 (true, min_height)
3653 } else if available_above > available_below {
3654 (true, available_above)
3655 } else {
3656 (false, available_below)
3657 }
3658 }
3659 };
3660 y_flipped = y_flipped_override;
3661 height = height_override;
3662 }
3663
3664 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3665
3666 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3667 // for very narrow windows.
3668 let popovers =
3669 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3670 if popovers.is_empty() {
3671 return None;
3672 }
3673
3674 let max_width = popovers
3675 .iter()
3676 .map(|(_, _, size)| size.width)
3677 .max()
3678 .unwrap_or_default();
3679
3680 let mut current_position = gpui::Point {
3681 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3682 // overflow. Include space for the scrollbar.
3683 x: target_position
3684 .x
3685 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3686 y: if y_flipped {
3687 bottom_y_when_flipped
3688 } else {
3689 target_position.y
3690 },
3691 };
3692
3693 let mut laid_out_popovers = popovers
3694 .into_iter()
3695 .map(|(popover_type, element, size)| {
3696 if y_flipped {
3697 current_position.y -= size.height;
3698 }
3699 let position = current_position;
3700 window.defer_draw(element, current_position, 1);
3701 if !y_flipped {
3702 current_position.y += size.height + MENU_GAP;
3703 } else {
3704 current_position.y -= MENU_GAP;
3705 }
3706 (popover_type, Bounds::new(position, size))
3707 })
3708 .collect::<Vec<_>>();
3709
3710 if y_flipped {
3711 laid_out_popovers.reverse();
3712 }
3713
3714 Some((laid_out_popovers, y_flipped))
3715 })
3716 }
3717
3718 fn layout_context_menu_aside(
3719 &self,
3720 y_flipped: bool,
3721 menu_bounds: Bounds<Pixels>,
3722 target_bounds: Bounds<Pixels>,
3723 max_target_bounds: Bounds<Pixels>,
3724 max_height: Pixels,
3725 must_place_above_or_below: bool,
3726 text_hitbox: &Hitbox,
3727 viewport_bounds: Bounds<Pixels>,
3728 window: &mut Window,
3729 cx: &mut App,
3730 ) {
3731 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3732 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3733 && !must_place_above_or_below
3734 {
3735 let max_width = cmp::min(
3736 available_within_viewport.right - px(1.),
3737 MENU_ASIDE_MAX_WIDTH,
3738 );
3739 let Some(mut aside) = self.render_context_menu_aside(
3740 size(max_width, max_height - POPOVER_Y_PADDING),
3741 window,
3742 cx,
3743 ) else {
3744 return;
3745 };
3746 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3747 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3748 Some((aside, right_position))
3749 } else {
3750 let max_size = size(
3751 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3752 // won't be needed here.
3753 cmp::min(
3754 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3755 viewport_bounds.right(),
3756 ),
3757 cmp::min(
3758 max_height,
3759 cmp::max(
3760 available_within_viewport.top,
3761 available_within_viewport.bottom,
3762 ),
3763 ) - POPOVER_Y_PADDING,
3764 );
3765 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3766 return;
3767 };
3768 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3769
3770 let top_position = point(
3771 menu_bounds.origin.x,
3772 target_bounds.top() - actual_size.height,
3773 );
3774 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3775
3776 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3777 // Prefer to fit on the same side of the line as the menu, then on the other side of
3778 // the line.
3779 if !y_flipped && wanted.height < available.bottom {
3780 Some(bottom_position)
3781 } else if !y_flipped && wanted.height < available.top {
3782 Some(top_position)
3783 } else if y_flipped && wanted.height < available.top {
3784 Some(top_position)
3785 } else if y_flipped && wanted.height < available.bottom {
3786 Some(bottom_position)
3787 } else {
3788 None
3789 }
3790 };
3791
3792 // Prefer choosing a direction using max sizes rather than actual size for stability.
3793 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3794 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3795 let aside_position = fit_within(available_within_text, wanted)
3796 // Fallback: fit max size in window.
3797 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3798 // Fallback: fit actual size in window.
3799 .or_else(|| fit_within(available_within_viewport, actual_size));
3800
3801 aside_position.map(|position| (aside, position))
3802 };
3803
3804 // Skip drawing if it doesn't fit anywhere.
3805 if let Some((aside, position)) = positioned_aside {
3806 window.defer_draw(aside, position, 2);
3807 }
3808 }
3809
3810 fn render_context_menu(
3811 &self,
3812 line_height: Pixels,
3813 height: Pixels,
3814 window: &mut Window,
3815 cx: &mut App,
3816 ) -> Option<AnyElement> {
3817 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3818 self.editor.update(cx, |editor, cx| {
3819 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
3820 })
3821 }
3822
3823 fn render_context_menu_aside(
3824 &self,
3825 max_size: Size<Pixels>,
3826 window: &mut Window,
3827 cx: &mut App,
3828 ) -> Option<AnyElement> {
3829 if max_size.width < px(100.) || max_size.height < px(12.) {
3830 None
3831 } else {
3832 self.editor.update(cx, |editor, cx| {
3833 editor.render_context_menu_aside(max_size, window, cx)
3834 })
3835 }
3836 }
3837
3838 fn layout_mouse_context_menu(
3839 &self,
3840 editor_snapshot: &EditorSnapshot,
3841 visible_range: Range<DisplayRow>,
3842 content_origin: gpui::Point<Pixels>,
3843 window: &mut Window,
3844 cx: &mut App,
3845 ) -> Option<AnyElement> {
3846 let position = self.editor.update(cx, |editor, _cx| {
3847 let visible_start_point = editor.display_to_pixel_point(
3848 DisplayPoint::new(visible_range.start, 0),
3849 editor_snapshot,
3850 window,
3851 )?;
3852 let visible_end_point = editor.display_to_pixel_point(
3853 DisplayPoint::new(visible_range.end, 0),
3854 editor_snapshot,
3855 window,
3856 )?;
3857
3858 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3859 let (source_display_point, position) = match mouse_context_menu.position {
3860 MenuPosition::PinnedToScreen(point) => (None, point),
3861 MenuPosition::PinnedToEditor { source, offset } => {
3862 let source_display_point = source.to_display_point(editor_snapshot);
3863 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3864 let position = content_origin + source_point + offset;
3865 (Some(source_display_point), position)
3866 }
3867 };
3868
3869 let source_included = source_display_point.map_or(true, |source_display_point| {
3870 visible_range
3871 .to_inclusive()
3872 .contains(&source_display_point.row())
3873 });
3874 let position_included =
3875 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3876 if !source_included && !position_included {
3877 None
3878 } else {
3879 Some(position)
3880 }
3881 })?;
3882
3883 let text_style = TextStyleRefinement {
3884 line_height: Some(DefiniteLength::Fraction(
3885 BufferLineHeight::Comfortable.value(),
3886 )),
3887 ..Default::default()
3888 };
3889 window.with_text_style(Some(text_style), |window| {
3890 let mut element = self.editor.update(cx, |editor, _| {
3891 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3892 let context_menu = mouse_context_menu.context_menu.clone();
3893
3894 Some(
3895 deferred(
3896 anchored()
3897 .position(position)
3898 .child(context_menu)
3899 .anchor(Corner::TopLeft)
3900 .snap_to_window_with_margin(px(8.)),
3901 )
3902 .with_priority(1)
3903 .into_any(),
3904 )
3905 })?;
3906
3907 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3908 Some(element)
3909 })
3910 }
3911
3912 fn layout_hover_popovers(
3913 &self,
3914 snapshot: &EditorSnapshot,
3915 hitbox: &Hitbox,
3916 text_hitbox: &Hitbox,
3917 visible_display_row_range: Range<DisplayRow>,
3918 content_origin: gpui::Point<Pixels>,
3919 scroll_pixel_position: gpui::Point<Pixels>,
3920 line_layouts: &[LineWithInvisibles],
3921 line_height: Pixels,
3922 em_width: Pixels,
3923 window: &mut Window,
3924 cx: &mut App,
3925 ) {
3926 struct MeasuredHoverPopover {
3927 element: AnyElement,
3928 size: Size<Pixels>,
3929 horizontal_offset: Pixels,
3930 }
3931
3932 let max_size = size(
3933 (120. * em_width) // Default size
3934 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3935 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3936 (16. * line_height) // Default size
3937 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3938 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3939 );
3940
3941 let hover_popovers = self.editor.update(cx, |editor, cx| {
3942 editor.hover_state.render(
3943 snapshot,
3944 visible_display_row_range.clone(),
3945 max_size,
3946 window,
3947 cx,
3948 )
3949 });
3950 let Some((position, hover_popovers)) = hover_popovers else {
3951 return;
3952 };
3953
3954 // This is safe because we check on layout whether the required row is available
3955 let hovered_row_layout =
3956 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3957
3958 // Compute Hovered Point
3959 let x =
3960 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3961 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3962 let hovered_point = content_origin + point(x, y);
3963
3964 let mut overall_height = Pixels::ZERO;
3965 let mut measured_hover_popovers = Vec::new();
3966 for mut hover_popover in hover_popovers {
3967 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3968 let horizontal_offset =
3969 (text_hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
3970 .min(Pixels::ZERO);
3971
3972 overall_height += HOVER_POPOVER_GAP + size.height;
3973
3974 measured_hover_popovers.push(MeasuredHoverPopover {
3975 element: hover_popover,
3976 size,
3977 horizontal_offset,
3978 });
3979 }
3980 overall_height += HOVER_POPOVER_GAP;
3981
3982 fn draw_occluder(
3983 width: Pixels,
3984 origin: gpui::Point<Pixels>,
3985 window: &mut Window,
3986 cx: &mut App,
3987 ) {
3988 let mut occlusion = div()
3989 .size_full()
3990 .occlude()
3991 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3992 .into_any_element();
3993 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3994 window.defer_draw(occlusion, origin, 2);
3995 }
3996
3997 if hovered_point.y > overall_height {
3998 // There is enough space above. Render popovers above the hovered point
3999 let mut current_y = hovered_point.y;
4000 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4001 let size = popover.size;
4002 let popover_origin = point(
4003 hovered_point.x + popover.horizontal_offset,
4004 current_y - size.height,
4005 );
4006
4007 window.defer_draw(popover.element, popover_origin, 2);
4008 if position != itertools::Position::Last {
4009 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4010 draw_occluder(size.width, origin, window, cx);
4011 }
4012
4013 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4014 }
4015 } else {
4016 // There is not enough space above. Render popovers below the hovered point
4017 let mut current_y = hovered_point.y + line_height;
4018 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4019 let size = popover.size;
4020 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4021
4022 window.defer_draw(popover.element, popover_origin, 2);
4023 if position != itertools::Position::Last {
4024 let origin = point(popover_origin.x, popover_origin.y + size.height);
4025 draw_occluder(size.width, origin, window, cx);
4026 }
4027
4028 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4029 }
4030 }
4031 }
4032
4033 fn layout_diff_hunk_controls(
4034 &self,
4035 row_range: Range<DisplayRow>,
4036 row_infos: &[RowInfo],
4037 text_hitbox: &Hitbox,
4038 position_map: &PositionMap,
4039 newest_cursor_position: Option<DisplayPoint>,
4040 line_height: Pixels,
4041 scroll_pixel_position: gpui::Point<Pixels>,
4042 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4043 editor: Entity<Editor>,
4044 window: &mut Window,
4045 cx: &mut App,
4046 ) -> Vec<AnyElement> {
4047 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4048 let point_for_position = position_map.point_for_position(window.mouse_position());
4049
4050 let mut controls = vec![];
4051
4052 let active_positions = [
4053 Some(point_for_position.previous_valid),
4054 newest_cursor_position,
4055 ];
4056
4057 for (hunk, _) in display_hunks {
4058 if let DisplayDiffHunk::Unfolded {
4059 display_row_range,
4060 multi_buffer_range,
4061 status,
4062 is_created_file,
4063 ..
4064 } = &hunk
4065 {
4066 if display_row_range.start < row_range.start
4067 || display_row_range.start >= row_range.end
4068 {
4069 continue;
4070 }
4071 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4072 if row_infos[row_ix].diff_status.is_none() {
4073 continue;
4074 }
4075 if row_infos[row_ix]
4076 .diff_status
4077 .is_some_and(|status| status.is_added())
4078 && !status.is_added()
4079 {
4080 continue;
4081 }
4082 if active_positions
4083 .iter()
4084 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4085 {
4086 let y = display_row_range.start.as_f32() * line_height
4087 + text_hitbox.bounds.top()
4088 - scroll_pixel_position.y;
4089
4090 let mut element = render_diff_hunk_controls(
4091 display_row_range.start.0,
4092 status,
4093 multi_buffer_range.clone(),
4094 *is_created_file,
4095 line_height,
4096 &editor,
4097 window,
4098 cx,
4099 );
4100 let size =
4101 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4102
4103 let x = text_hitbox.bounds.right()
4104 - self.style.scrollbar_width
4105 - px(10.)
4106 - size.width;
4107
4108 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4109 element.prepaint(window, cx)
4110 });
4111 controls.push(element);
4112 }
4113 }
4114 }
4115
4116 controls
4117 }
4118
4119 fn layout_signature_help(
4120 &self,
4121 hitbox: &Hitbox,
4122 text_hitbox: &Hitbox,
4123 content_origin: gpui::Point<Pixels>,
4124 scroll_pixel_position: gpui::Point<Pixels>,
4125 newest_selection_head: Option<DisplayPoint>,
4126 start_row: DisplayRow,
4127 line_layouts: &[LineWithInvisibles],
4128 line_height: Pixels,
4129 em_width: Pixels,
4130 window: &mut Window,
4131 cx: &mut App,
4132 ) {
4133 if !self.editor.focus_handle(cx).is_focused(window) {
4134 return;
4135 }
4136 let Some(newest_selection_head) = newest_selection_head else {
4137 return;
4138 };
4139
4140 let max_size = size(
4141 (120. * em_width) // Default size
4142 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4143 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4144 (16. * line_height) // Default size
4145 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4146 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4147 );
4148
4149 let maybe_element = self.editor.update(cx, |editor, cx| {
4150 if let Some(popover) = editor.signature_help_state.popover_mut() {
4151 let element = popover.render(max_size, cx);
4152 Some(element)
4153 } else {
4154 None
4155 }
4156 });
4157 let Some(mut element) = maybe_element else {
4158 return;
4159 };
4160
4161 let selection_row = newest_selection_head.row();
4162 let Some(cursor_row_layout) = (selection_row >= start_row)
4163 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
4164 .flatten()
4165 else {
4166 return;
4167 };
4168
4169 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4170 - scroll_pixel_position.x;
4171 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
4172 let target_point = content_origin + point(target_x, target_y);
4173
4174 let actual_size = element.layout_as_root(max_size.into(), window, cx);
4175 let overall_height = actual_size.height + HOVER_POPOVER_GAP;
4176
4177 let popover_origin = if target_point.y > overall_height {
4178 point(target_point.x, target_point.y - actual_size.height)
4179 } else {
4180 point(
4181 target_point.x,
4182 target_point.y + line_height + HOVER_POPOVER_GAP,
4183 )
4184 };
4185
4186 let horizontal_offset = (text_hitbox.top_right().x
4187 - POPOVER_RIGHT_OFFSET
4188 - (popover_origin.x + actual_size.width))
4189 .min(Pixels::ZERO);
4190 let final_origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
4191
4192 window.defer_draw(element, final_origin, 2);
4193 }
4194
4195 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4196 window.paint_layer(layout.hitbox.bounds, |window| {
4197 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4198 let gutter_bg = cx.theme().colors().editor_gutter_background;
4199 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4200 window.paint_quad(fill(
4201 layout.position_map.text_hitbox.bounds,
4202 self.style.background,
4203 ));
4204
4205 if let EditorMode::Full {
4206 show_active_line_background,
4207 ..
4208 } = layout.mode
4209 {
4210 let mut active_rows = layout.active_rows.iter().peekable();
4211 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4212 let mut end_row = start_row.0;
4213 while active_rows
4214 .peek()
4215 .map_or(false, |(active_row, has_selection)| {
4216 active_row.0 == end_row + 1
4217 && has_selection.selection == contains_non_empty_selection.selection
4218 })
4219 {
4220 active_rows.next().unwrap();
4221 end_row += 1;
4222 }
4223
4224 if show_active_line_background && !contains_non_empty_selection.selection {
4225 let highlight_h_range =
4226 match layout.position_map.snapshot.current_line_highlight {
4227 CurrentLineHighlight::Gutter => Some(Range {
4228 start: layout.hitbox.left(),
4229 end: layout.gutter_hitbox.right(),
4230 }),
4231 CurrentLineHighlight::Line => Some(Range {
4232 start: layout.position_map.text_hitbox.bounds.left(),
4233 end: layout.position_map.text_hitbox.bounds.right(),
4234 }),
4235 CurrentLineHighlight::All => Some(Range {
4236 start: layout.hitbox.left(),
4237 end: layout.hitbox.right(),
4238 }),
4239 CurrentLineHighlight::None => None,
4240 };
4241 if let Some(range) = highlight_h_range {
4242 let active_line_bg = cx.theme().colors().editor_active_line_background;
4243 let bounds = Bounds {
4244 origin: point(
4245 range.start,
4246 layout.hitbox.origin.y
4247 + (start_row.as_f32() - scroll_top)
4248 * layout.position_map.line_height,
4249 ),
4250 size: size(
4251 range.end - range.start,
4252 layout.position_map.line_height
4253 * (end_row - start_row.0 + 1) as f32,
4254 ),
4255 };
4256 window.paint_quad(fill(bounds, active_line_bg));
4257 }
4258 }
4259 }
4260
4261 let mut paint_highlight = |highlight_row_start: DisplayRow,
4262 highlight_row_end: DisplayRow,
4263 highlight: crate::LineHighlight,
4264 edges| {
4265 let origin = point(
4266 layout.hitbox.origin.x,
4267 layout.hitbox.origin.y
4268 + (highlight_row_start.as_f32() - scroll_top)
4269 * layout.position_map.line_height,
4270 );
4271 let size = size(
4272 layout.hitbox.size.width,
4273 layout.position_map.line_height
4274 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4275 );
4276 let mut quad = fill(Bounds { origin, size }, highlight.background);
4277 if let Some(border_color) = highlight.border {
4278 quad.border_color = border_color;
4279 quad.border_widths = edges
4280 }
4281 window.paint_quad(quad);
4282 };
4283
4284 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4285 None;
4286 for (&new_row, &new_background) in &layout.highlighted_rows {
4287 match &mut current_paint {
4288 &mut Some((current_background, ref mut current_range, mut edges)) => {
4289 let new_range_started = current_background != new_background
4290 || current_range.end.next_row() != new_row;
4291 if new_range_started {
4292 if current_range.end.next_row() == new_row {
4293 edges.bottom = px(0.);
4294 };
4295 paint_highlight(
4296 current_range.start,
4297 current_range.end,
4298 current_background,
4299 edges,
4300 );
4301 let edges = Edges {
4302 top: if current_range.end.next_row() != new_row {
4303 px(1.)
4304 } else {
4305 px(0.)
4306 },
4307 bottom: px(1.),
4308 ..Default::default()
4309 };
4310 current_paint = Some((new_background, new_row..new_row, edges));
4311 continue;
4312 } else {
4313 current_range.end = current_range.end.next_row();
4314 }
4315 }
4316 None => {
4317 let edges = Edges {
4318 top: px(1.),
4319 bottom: px(1.),
4320 ..Default::default()
4321 };
4322 current_paint = Some((new_background, new_row..new_row, edges))
4323 }
4324 };
4325 }
4326 if let Some((color, range, edges)) = current_paint {
4327 paint_highlight(range.start, range.end, color, edges);
4328 }
4329
4330 let scroll_left =
4331 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4332
4333 for (wrap_position, active) in layout.wrap_guides.iter() {
4334 let x = (layout.position_map.text_hitbox.origin.x
4335 + *wrap_position
4336 + layout.position_map.em_width / 2.)
4337 - scroll_left;
4338
4339 let show_scrollbars = layout
4340 .scrollbars_layout
4341 .as_ref()
4342 .map_or(false, |layout| layout.visible);
4343
4344 if x < layout.position_map.text_hitbox.origin.x
4345 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4346 {
4347 continue;
4348 }
4349
4350 let color = if *active {
4351 cx.theme().colors().editor_active_wrap_guide
4352 } else {
4353 cx.theme().colors().editor_wrap_guide
4354 };
4355 window.paint_quad(fill(
4356 Bounds {
4357 origin: point(x, layout.position_map.text_hitbox.origin.y),
4358 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4359 },
4360 color,
4361 ));
4362 }
4363 }
4364 })
4365 }
4366
4367 fn paint_indent_guides(
4368 &mut self,
4369 layout: &mut EditorLayout,
4370 window: &mut Window,
4371 cx: &mut App,
4372 ) {
4373 let Some(indent_guides) = &layout.indent_guides else {
4374 return;
4375 };
4376
4377 let faded_color = |color: Hsla, alpha: f32| {
4378 let mut faded = color;
4379 faded.a = alpha;
4380 faded
4381 };
4382
4383 for indent_guide in indent_guides {
4384 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4385 let settings = indent_guide.settings;
4386
4387 // TODO fixed for now, expose them through themes later
4388 const INDENT_AWARE_ALPHA: f32 = 0.2;
4389 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4390 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4391 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4392
4393 let line_color = match (settings.coloring, indent_guide.active) {
4394 (IndentGuideColoring::Disabled, _) => None,
4395 (IndentGuideColoring::Fixed, false) => {
4396 Some(cx.theme().colors().editor_indent_guide)
4397 }
4398 (IndentGuideColoring::Fixed, true) => {
4399 Some(cx.theme().colors().editor_indent_guide_active)
4400 }
4401 (IndentGuideColoring::IndentAware, false) => {
4402 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4403 }
4404 (IndentGuideColoring::IndentAware, true) => {
4405 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4406 }
4407 };
4408
4409 let background_color = match (settings.background_coloring, indent_guide.active) {
4410 (IndentGuideBackgroundColoring::Disabled, _) => None,
4411 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4412 indent_accent_colors,
4413 INDENT_AWARE_BACKGROUND_ALPHA,
4414 )),
4415 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4416 indent_accent_colors,
4417 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4418 )),
4419 };
4420
4421 let requested_line_width = if indent_guide.active {
4422 settings.active_line_width
4423 } else {
4424 settings.line_width
4425 }
4426 .clamp(1, 10);
4427 let mut line_indicator_width = 0.;
4428 if let Some(color) = line_color {
4429 window.paint_quad(fill(
4430 Bounds {
4431 origin: indent_guide.origin,
4432 size: size(px(requested_line_width as f32), indent_guide.length),
4433 },
4434 color,
4435 ));
4436 line_indicator_width = requested_line_width as f32;
4437 }
4438
4439 if let Some(color) = background_color {
4440 let width = indent_guide.single_indent_width - px(line_indicator_width);
4441 window.paint_quad(fill(
4442 Bounds {
4443 origin: point(
4444 indent_guide.origin.x + px(line_indicator_width),
4445 indent_guide.origin.y,
4446 ),
4447 size: size(width, indent_guide.length),
4448 },
4449 color,
4450 ));
4451 }
4452 }
4453 }
4454
4455 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4456 let is_singleton = self.editor.read(cx).is_singleton(cx);
4457
4458 let line_height = layout.position_map.line_height;
4459 window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox));
4460
4461 for LineNumberLayout {
4462 shaped_line,
4463 hitbox,
4464 } in layout.line_numbers.values()
4465 {
4466 let Some(hitbox) = hitbox else {
4467 continue;
4468 };
4469
4470 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4471 let color = cx.theme().colors().editor_hover_line_number;
4472
4473 let Some(line) = self
4474 .shape_line_number(shaped_line.text.clone(), color, window)
4475 .log_err()
4476 else {
4477 continue;
4478 };
4479
4480 line.paint(hitbox.origin, line_height, window, cx).log_err()
4481 } else {
4482 shaped_line
4483 .paint(hitbox.origin, line_height, window, cx)
4484 .log_err()
4485 }) else {
4486 continue;
4487 };
4488
4489 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4490 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4491 if is_singleton {
4492 window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox));
4493 } else {
4494 window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox));
4495 }
4496 }
4497 }
4498
4499 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4500 if layout.display_hunks.is_empty() {
4501 return;
4502 }
4503
4504 let line_height = layout.position_map.line_height;
4505 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4506 for (hunk, hitbox) in &layout.display_hunks {
4507 let hunk_to_paint = match hunk {
4508 DisplayDiffHunk::Folded { .. } => {
4509 let hunk_bounds = Self::diff_hunk_bounds(
4510 &layout.position_map.snapshot,
4511 line_height,
4512 layout.gutter_hitbox.bounds,
4513 &hunk,
4514 );
4515 Some((
4516 hunk_bounds,
4517 cx.theme().colors().version_control_modified,
4518 Corners::all(px(0.)),
4519 DiffHunkStatus::modified_none(),
4520 ))
4521 }
4522 DisplayDiffHunk::Unfolded {
4523 status,
4524 display_row_range,
4525 ..
4526 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4527 DiffHunkStatusKind::Added => (
4528 hunk_hitbox.bounds,
4529 cx.theme().colors().version_control_added,
4530 Corners::all(px(0.)),
4531 *status,
4532 ),
4533 DiffHunkStatusKind::Modified => (
4534 hunk_hitbox.bounds,
4535 cx.theme().colors().version_control_modified,
4536 Corners::all(px(0.)),
4537 *status,
4538 ),
4539 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4540 hunk_hitbox.bounds,
4541 cx.theme().colors().version_control_deleted,
4542 Corners::all(px(0.)),
4543 *status,
4544 ),
4545 DiffHunkStatusKind::Deleted => (
4546 Bounds::new(
4547 point(
4548 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4549 hunk_hitbox.origin.y,
4550 ),
4551 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4552 ),
4553 cx.theme().colors().version_control_deleted,
4554 Corners::all(1. * line_height),
4555 *status,
4556 ),
4557 }),
4558 };
4559
4560 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4561 // Flatten the background color with the editor color to prevent
4562 // elements below transparent hunks from showing through
4563 let flattened_background_color = cx
4564 .theme()
4565 .colors()
4566 .editor_background
4567 .blend(background_color);
4568
4569 if !Self::diff_hunk_hollow(status, cx) {
4570 window.paint_quad(quad(
4571 hunk_bounds,
4572 corner_radii,
4573 flattened_background_color,
4574 Edges::default(),
4575 transparent_black(),
4576 BorderStyle::default(),
4577 ));
4578 } else {
4579 let flattened_unstaged_background_color = cx
4580 .theme()
4581 .colors()
4582 .editor_background
4583 .blend(background_color.opacity(0.3));
4584
4585 window.paint_quad(quad(
4586 hunk_bounds,
4587 corner_radii,
4588 flattened_unstaged_background_color,
4589 Edges::all(Pixels(1.0)),
4590 flattened_background_color,
4591 BorderStyle::Solid,
4592 ));
4593 }
4594 }
4595 }
4596 });
4597 }
4598
4599 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4600 (0.275 * line_height).floor()
4601 }
4602
4603 fn diff_hunk_bounds(
4604 snapshot: &EditorSnapshot,
4605 line_height: Pixels,
4606 gutter_bounds: Bounds<Pixels>,
4607 hunk: &DisplayDiffHunk,
4608 ) -> Bounds<Pixels> {
4609 let scroll_position = snapshot.scroll_position();
4610 let scroll_top = scroll_position.y * line_height;
4611 let gutter_strip_width = Self::gutter_strip_width(line_height);
4612
4613 match hunk {
4614 DisplayDiffHunk::Folded { display_row, .. } => {
4615 let start_y = display_row.as_f32() * line_height - scroll_top;
4616 let end_y = start_y + line_height;
4617 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4618 let highlight_size = size(gutter_strip_width, end_y - start_y);
4619 Bounds::new(highlight_origin, highlight_size)
4620 }
4621 DisplayDiffHunk::Unfolded {
4622 display_row_range,
4623 status,
4624 ..
4625 } => {
4626 if status.is_deleted() && display_row_range.is_empty() {
4627 let row = display_row_range.start;
4628
4629 let offset = line_height / 2.;
4630 let start_y = row.as_f32() * line_height - offset - scroll_top;
4631 let end_y = start_y + line_height;
4632
4633 let width = (0.35 * line_height).floor();
4634 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4635 let highlight_size = size(width, end_y - start_y);
4636 Bounds::new(highlight_origin, highlight_size)
4637 } else {
4638 let start_row = display_row_range.start;
4639 let end_row = display_row_range.end;
4640 // If we're in a multibuffer, row range span might include an
4641 // excerpt header, so if we were to draw the marker straight away,
4642 // the hunk might include the rows of that header.
4643 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4644 // Instead, we simply check whether the range we're dealing with includes
4645 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4646 let end_row_in_current_excerpt = snapshot
4647 .blocks_in_range(start_row..end_row)
4648 .find_map(|(start_row, block)| {
4649 if matches!(block, Block::ExcerptBoundary { .. }) {
4650 Some(start_row)
4651 } else {
4652 None
4653 }
4654 })
4655 .unwrap_or(end_row);
4656
4657 let start_y = start_row.as_f32() * line_height - scroll_top;
4658 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4659
4660 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4661 let highlight_size = size(gutter_strip_width, end_y - start_y);
4662 Bounds::new(highlight_origin, highlight_size)
4663 }
4664 }
4665 }
4666 }
4667
4668 fn paint_gutter_indicators(
4669 &self,
4670 layout: &mut EditorLayout,
4671 window: &mut Window,
4672 cx: &mut App,
4673 ) {
4674 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4675 window.with_element_namespace("crease_toggles", |window| {
4676 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4677 crease_toggle.paint(window, cx);
4678 }
4679 });
4680
4681 window.with_element_namespace("expand_toggles", |window| {
4682 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4683 expand_toggle.paint(window, cx);
4684 }
4685 });
4686
4687 for breakpoint in layout.breakpoints.iter_mut() {
4688 breakpoint.paint(window, cx);
4689 }
4690
4691 for test_indicator in layout.test_indicators.iter_mut() {
4692 test_indicator.paint(window, cx);
4693 }
4694
4695 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4696 indicator.paint(window, cx);
4697 }
4698 });
4699 }
4700
4701 fn paint_gutter_highlights(
4702 &self,
4703 layout: &mut EditorLayout,
4704 window: &mut Window,
4705 cx: &mut App,
4706 ) {
4707 for (_, hunk_hitbox) in &layout.display_hunks {
4708 if let Some(hunk_hitbox) = hunk_hitbox {
4709 if !self
4710 .editor
4711 .read(cx)
4712 .buffer()
4713 .read(cx)
4714 .all_diff_hunks_expanded()
4715 {
4716 window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox));
4717 }
4718 }
4719 }
4720
4721 let show_git_gutter = layout
4722 .position_map
4723 .snapshot
4724 .show_git_diff_gutter
4725 .unwrap_or_else(|| {
4726 matches!(
4727 ProjectSettings::get_global(cx).git.git_gutter,
4728 Some(GitGutterSetting::TrackedFiles)
4729 )
4730 });
4731 if show_git_gutter {
4732 Self::paint_gutter_diff_hunks(layout, window, cx)
4733 }
4734
4735 let highlight_width = 0.275 * layout.position_map.line_height;
4736 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4737 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4738 for (range, color) in &layout.highlighted_gutter_ranges {
4739 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4740 layout.visible_display_row_range.start - DisplayRow(1)
4741 } else {
4742 range.start.row()
4743 };
4744 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4745 layout.visible_display_row_range.end + DisplayRow(1)
4746 } else {
4747 range.end.row()
4748 };
4749
4750 let start_y = layout.gutter_hitbox.top()
4751 + start_row.0 as f32 * layout.position_map.line_height
4752 - layout.position_map.scroll_pixel_position.y;
4753 let end_y = layout.gutter_hitbox.top()
4754 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4755 - layout.position_map.scroll_pixel_position.y;
4756 let bounds = Bounds::from_corners(
4757 point(layout.gutter_hitbox.left(), start_y),
4758 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4759 );
4760 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4761 }
4762 });
4763 }
4764
4765 fn paint_blamed_display_rows(
4766 &self,
4767 layout: &mut EditorLayout,
4768 window: &mut Window,
4769 cx: &mut App,
4770 ) {
4771 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4772 return;
4773 };
4774
4775 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4776 for mut blame_element in blamed_display_rows.into_iter() {
4777 blame_element.paint(window, cx);
4778 }
4779 })
4780 }
4781
4782 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4783 window.with_content_mask(
4784 Some(ContentMask {
4785 bounds: layout.position_map.text_hitbox.bounds,
4786 }),
4787 |window| {
4788 let editor = self.editor.read(cx);
4789 if editor.mouse_cursor_hidden {
4790 window.set_cursor_style(CursorStyle::None, None);
4791 } else if editor
4792 .hovered_link_state
4793 .as_ref()
4794 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4795 {
4796 window.set_cursor_style(
4797 CursorStyle::PointingHand,
4798 Some(&layout.position_map.text_hitbox),
4799 );
4800 } else {
4801 window.set_cursor_style(
4802 CursorStyle::IBeam,
4803 Some(&layout.position_map.text_hitbox),
4804 );
4805 };
4806
4807 self.paint_lines_background(layout, window, cx);
4808 let invisible_display_ranges = self.paint_highlights(layout, window);
4809 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4810 self.paint_redactions(layout, window);
4811 self.paint_cursors(layout, window, cx);
4812 self.paint_inline_diagnostics(layout, window, cx);
4813 self.paint_inline_blame(layout, window, cx);
4814 self.paint_diff_hunk_controls(layout, window, cx);
4815 window.with_element_namespace("crease_trailers", |window| {
4816 for trailer in layout.crease_trailers.iter_mut().flatten() {
4817 trailer.element.paint(window, cx);
4818 }
4819 });
4820 },
4821 )
4822 }
4823
4824 fn paint_highlights(
4825 &mut self,
4826 layout: &mut EditorLayout,
4827 window: &mut Window,
4828 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4829 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4830 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4831 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4832 for (range, color) in &layout.highlighted_ranges {
4833 self.paint_highlighted_range(
4834 range.clone(),
4835 *color,
4836 Pixels::ZERO,
4837 line_end_overshoot,
4838 layout,
4839 window,
4840 );
4841 }
4842
4843 let corner_radius = 0.15 * layout.position_map.line_height;
4844
4845 for (player_color, selections) in &layout.selections {
4846 for selection in selections.iter() {
4847 self.paint_highlighted_range(
4848 selection.range.clone(),
4849 player_color.selection,
4850 corner_radius,
4851 corner_radius * 2.,
4852 layout,
4853 window,
4854 );
4855
4856 if selection.is_local && !selection.range.is_empty() {
4857 invisible_display_ranges.push(selection.range.clone());
4858 }
4859 }
4860 }
4861 invisible_display_ranges
4862 })
4863 }
4864
4865 fn paint_lines(
4866 &mut self,
4867 invisible_display_ranges: &[Range<DisplayPoint>],
4868 layout: &mut EditorLayout,
4869 window: &mut Window,
4870 cx: &mut App,
4871 ) {
4872 let whitespace_setting = self
4873 .editor
4874 .read(cx)
4875 .buffer
4876 .read(cx)
4877 .language_settings(cx)
4878 .show_whitespaces;
4879
4880 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4881 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4882 line_with_invisibles.draw(
4883 layout,
4884 row,
4885 layout.content_origin,
4886 whitespace_setting,
4887 invisible_display_ranges,
4888 window,
4889 cx,
4890 )
4891 }
4892
4893 for line_element in &mut layout.line_elements {
4894 line_element.paint(window, cx);
4895 }
4896 }
4897
4898 fn paint_lines_background(
4899 &mut self,
4900 layout: &mut EditorLayout,
4901 window: &mut Window,
4902 cx: &mut App,
4903 ) {
4904 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4905 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4906 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4907 }
4908 }
4909
4910 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4911 if layout.redacted_ranges.is_empty() {
4912 return;
4913 }
4914
4915 let line_end_overshoot = layout.line_end_overshoot();
4916
4917 // A softer than perfect black
4918 let redaction_color = gpui::rgb(0x0e1111);
4919
4920 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4921 for range in layout.redacted_ranges.iter() {
4922 self.paint_highlighted_range(
4923 range.clone(),
4924 redaction_color.into(),
4925 Pixels::ZERO,
4926 line_end_overshoot,
4927 layout,
4928 window,
4929 );
4930 }
4931 });
4932 }
4933
4934 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4935 for cursor in &mut layout.visible_cursors {
4936 cursor.paint(layout.content_origin, window, cx);
4937 }
4938 }
4939
4940 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4941 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
4942 return;
4943 };
4944
4945 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
4946 let hitbox = &scrollbar_layout.hitbox;
4947 let thumb_bounds = scrollbar_layout.thumb_bounds();
4948
4949 if scrollbars_layout.visible {
4950 let scrollbar_edges = match axis {
4951 ScrollbarAxis::Horizontal => Edges {
4952 top: Pixels::ZERO,
4953 right: Pixels::ZERO,
4954 bottom: Pixels::ZERO,
4955 left: Pixels::ZERO,
4956 },
4957 ScrollbarAxis::Vertical => Edges {
4958 top: Pixels::ZERO,
4959 right: Pixels::ZERO,
4960 bottom: Pixels::ZERO,
4961 left: ScrollbarLayout::BORDER_WIDTH,
4962 },
4963 };
4964
4965 window.paint_layer(hitbox.bounds, |window| {
4966 window.paint_quad(quad(
4967 hitbox.bounds,
4968 Corners::default(),
4969 cx.theme().colors().scrollbar_track_background,
4970 scrollbar_edges,
4971 cx.theme().colors().scrollbar_track_border,
4972 BorderStyle::Solid,
4973 ));
4974
4975 if axis == ScrollbarAxis::Vertical {
4976 let fast_markers =
4977 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4978 // Refresh slow scrollbar markers in the background. Below, we
4979 // paint whatever markers have already been computed.
4980 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4981
4982 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4983 for marker in markers.iter().chain(&fast_markers) {
4984 let mut marker = marker.clone();
4985 marker.bounds.origin += hitbox.origin;
4986 window.paint_quad(marker);
4987 }
4988 }
4989
4990 window.paint_quad(quad(
4991 thumb_bounds,
4992 Corners::default(),
4993 cx.theme().colors().scrollbar_thumb_background,
4994 scrollbar_edges,
4995 cx.theme().colors().scrollbar_thumb_border,
4996 BorderStyle::Solid,
4997 ));
4998 })
4999 }
5000 window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox));
5001 }
5002
5003 window.on_mouse_event({
5004 let editor = self.editor.clone();
5005 let scrollbars_layout = scrollbars_layout.clone();
5006
5007 let mut mouse_position = window.mouse_position();
5008 move |event: &MouseMoveEvent, phase, window, cx| {
5009 if phase == DispatchPhase::Capture {
5010 return;
5011 }
5012
5013 editor.update(cx, |editor, cx| {
5014 if let Some((scrollbar_layout, axis)) = event
5015 .pressed_button
5016 .filter(|button| *button == MouseButton::Left)
5017 .and(editor.scroll_manager.dragging_scrollbar_axis())
5018 .and_then(|axis| {
5019 scrollbars_layout
5020 .iter_scrollbars()
5021 .find(|(_, a)| *a == axis)
5022 })
5023 {
5024 let ScrollbarLayout {
5025 hitbox,
5026 text_unit_size,
5027 ..
5028 } = scrollbar_layout;
5029
5030 let old_position = mouse_position.along(axis);
5031 let new_position = event.position.along(axis);
5032 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
5033 .contains(&old_position)
5034 {
5035 let position = editor.scroll_position(cx).apply_along(axis, |p| {
5036 (p + (new_position - old_position) / *text_unit_size).max(0.)
5037 });
5038 editor.set_scroll_position(position, window, cx);
5039 }
5040 cx.stop_propagation();
5041 } else {
5042 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
5043 }
5044
5045 if scrollbars_layout.get_hovered_axis(window).is_some() {
5046 editor.scroll_manager.show_scrollbars(window, cx);
5047 }
5048
5049 mouse_position = event.position;
5050 })
5051 }
5052 });
5053
5054 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
5055 window.on_mouse_event({
5056 let editor = self.editor.clone();
5057 move |_: &MouseUpEvent, phase, _, cx| {
5058 if phase == DispatchPhase::Capture {
5059 return;
5060 }
5061
5062 editor.update(cx, |editor, cx| {
5063 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
5064 cx.stop_propagation();
5065 });
5066 }
5067 });
5068 } else {
5069 window.on_mouse_event({
5070 let editor = self.editor.clone();
5071 let scrollbars_layout = scrollbars_layout.clone();
5072
5073 move |event: &MouseDownEvent, phase, window, cx| {
5074 if phase == DispatchPhase::Capture {
5075 return;
5076 }
5077 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
5078 else {
5079 return;
5080 };
5081
5082 let ScrollbarLayout {
5083 hitbox,
5084 visible_range,
5085 text_unit_size,
5086 ..
5087 } = scrollbar_layout;
5088
5089 let thumb_bounds = scrollbar_layout.thumb_bounds();
5090
5091 editor.update(cx, |editor, cx| {
5092 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
5093
5094 let event_position = event.position.along(axis);
5095
5096 if event_position < thumb_bounds.origin.along(axis)
5097 || thumb_bounds.bottom_right().along(axis) < event_position
5098 {
5099 let center_position = ((event_position - hitbox.origin.along(axis))
5100 / *text_unit_size)
5101 .round() as u32;
5102 let start_position = center_position.saturating_sub(
5103 (visible_range.end - visible_range.start) as u32 / 2,
5104 );
5105
5106 let position = editor
5107 .scroll_position(cx)
5108 .apply_along(axis, |_| start_position as f32);
5109
5110 editor.set_scroll_position(position, window, cx);
5111 } else {
5112 editor.scroll_manager.show_scrollbars(window, cx);
5113 }
5114
5115 cx.stop_propagation();
5116 });
5117 }
5118 });
5119 }
5120 }
5121
5122 fn collect_fast_scrollbar_markers(
5123 &self,
5124 layout: &EditorLayout,
5125 scrollbar_layout: &ScrollbarLayout,
5126 cx: &mut App,
5127 ) -> Vec<PaintQuad> {
5128 const LIMIT: usize = 100;
5129 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5130 return vec![];
5131 }
5132 let cursor_ranges = layout
5133 .cursors
5134 .iter()
5135 .map(|(point, color)| ColoredRange {
5136 start: point.row(),
5137 end: point.row(),
5138 color: *color,
5139 })
5140 .collect_vec();
5141 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5142 }
5143
5144 fn refresh_slow_scrollbar_markers(
5145 &self,
5146 layout: &EditorLayout,
5147 scrollbar_layout: &ScrollbarLayout,
5148 window: &mut Window,
5149 cx: &mut App,
5150 ) {
5151 self.editor.update(cx, |editor, cx| {
5152 if !editor.is_singleton(cx)
5153 || !editor
5154 .scrollbar_marker_state
5155 .should_refresh(scrollbar_layout.hitbox.size)
5156 {
5157 return;
5158 }
5159
5160 let scrollbar_layout = scrollbar_layout.clone();
5161 let background_highlights = editor.background_highlights.clone();
5162 let snapshot = layout.position_map.snapshot.clone();
5163 let theme = cx.theme().clone();
5164 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5165
5166 editor.scrollbar_marker_state.dirty = false;
5167 editor.scrollbar_marker_state.pending_refresh =
5168 Some(cx.spawn_in(window, async move |editor, cx| {
5169 let scrollbar_size = scrollbar_layout.hitbox.size;
5170 let scrollbar_markers = cx
5171 .background_spawn(async move {
5172 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5173 let mut marker_quads = Vec::new();
5174 if scrollbar_settings.git_diff {
5175 let marker_row_ranges =
5176 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5177 let start_display_row =
5178 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5179 .to_display_point(&snapshot.display_snapshot)
5180 .row();
5181 let mut end_display_row =
5182 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5183 .to_display_point(&snapshot.display_snapshot)
5184 .row();
5185 if end_display_row != start_display_row {
5186 end_display_row.0 -= 1;
5187 }
5188 let color = match &hunk.status().kind {
5189 DiffHunkStatusKind::Added => {
5190 theme.colors().version_control_added
5191 }
5192 DiffHunkStatusKind::Modified => {
5193 theme.colors().version_control_modified
5194 }
5195 DiffHunkStatusKind::Deleted => {
5196 theme.colors().version_control_deleted
5197 }
5198 };
5199 ColoredRange {
5200 start: start_display_row,
5201 end: end_display_row,
5202 color,
5203 }
5204 });
5205
5206 marker_quads.extend(
5207 scrollbar_layout
5208 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5209 );
5210 }
5211
5212 for (background_highlight_id, (_, background_ranges)) in
5213 background_highlights.iter()
5214 {
5215 let is_search_highlights = *background_highlight_id
5216 == TypeId::of::<BufferSearchHighlights>();
5217 let is_text_highlights = *background_highlight_id
5218 == TypeId::of::<SelectedTextHighlight>();
5219 let is_symbol_occurrences = *background_highlight_id
5220 == TypeId::of::<DocumentHighlightRead>()
5221 || *background_highlight_id
5222 == TypeId::of::<DocumentHighlightWrite>();
5223 if (is_search_highlights && scrollbar_settings.search_results)
5224 || (is_text_highlights && scrollbar_settings.selected_text)
5225 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5226 {
5227 let mut color = theme.status().info;
5228 if is_symbol_occurrences {
5229 color.fade_out(0.5);
5230 }
5231 let marker_row_ranges = background_ranges.iter().map(|range| {
5232 let display_start = range
5233 .start
5234 .to_display_point(&snapshot.display_snapshot);
5235 let display_end =
5236 range.end.to_display_point(&snapshot.display_snapshot);
5237 ColoredRange {
5238 start: display_start.row(),
5239 end: display_end.row(),
5240 color,
5241 }
5242 });
5243 marker_quads.extend(
5244 scrollbar_layout
5245 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5246 );
5247 }
5248 }
5249
5250 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5251 let diagnostics = snapshot
5252 .buffer_snapshot
5253 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5254 // Don't show diagnostics the user doesn't care about
5255 .filter(|diagnostic| {
5256 match (
5257 scrollbar_settings.diagnostics,
5258 diagnostic.diagnostic.severity,
5259 ) {
5260 (ScrollbarDiagnostics::All, _) => true,
5261 (
5262 ScrollbarDiagnostics::Error,
5263 DiagnosticSeverity::ERROR,
5264 ) => true,
5265 (
5266 ScrollbarDiagnostics::Warning,
5267 DiagnosticSeverity::ERROR
5268 | DiagnosticSeverity::WARNING,
5269 ) => true,
5270 (
5271 ScrollbarDiagnostics::Information,
5272 DiagnosticSeverity::ERROR
5273 | DiagnosticSeverity::WARNING
5274 | DiagnosticSeverity::INFORMATION,
5275 ) => true,
5276 (_, _) => false,
5277 }
5278 })
5279 // We want to sort by severity, in order to paint the most severe diagnostics last.
5280 .sorted_by_key(|diagnostic| {
5281 std::cmp::Reverse(diagnostic.diagnostic.severity)
5282 });
5283
5284 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5285 let start_display = diagnostic
5286 .range
5287 .start
5288 .to_display_point(&snapshot.display_snapshot);
5289 let end_display = diagnostic
5290 .range
5291 .end
5292 .to_display_point(&snapshot.display_snapshot);
5293 let color = match diagnostic.diagnostic.severity {
5294 DiagnosticSeverity::ERROR => theme.status().error,
5295 DiagnosticSeverity::WARNING => theme.status().warning,
5296 DiagnosticSeverity::INFORMATION => theme.status().info,
5297 _ => theme.status().hint,
5298 };
5299 ColoredRange {
5300 start: start_display.row(),
5301 end: end_display.row(),
5302 color,
5303 }
5304 });
5305 marker_quads.extend(
5306 scrollbar_layout
5307 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5308 );
5309 }
5310
5311 Arc::from(marker_quads)
5312 })
5313 .await;
5314
5315 editor.update(cx, |editor, cx| {
5316 editor.scrollbar_marker_state.markers = scrollbar_markers;
5317 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5318 editor.scrollbar_marker_state.pending_refresh = None;
5319 cx.notify();
5320 })?;
5321
5322 Ok(())
5323 }));
5324 });
5325 }
5326
5327 fn paint_highlighted_range(
5328 &self,
5329 range: Range<DisplayPoint>,
5330 color: Hsla,
5331 corner_radius: Pixels,
5332 line_end_overshoot: Pixels,
5333 layout: &EditorLayout,
5334 window: &mut Window,
5335 ) {
5336 let start_row = layout.visible_display_row_range.start;
5337 let end_row = layout.visible_display_row_range.end;
5338 if range.start != range.end {
5339 let row_range = if range.end.column() == 0 {
5340 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5341 } else {
5342 cmp::max(range.start.row(), start_row)
5343 ..cmp::min(range.end.row().next_row(), end_row)
5344 };
5345
5346 let highlighted_range = HighlightedRange {
5347 color,
5348 line_height: layout.position_map.line_height,
5349 corner_radius,
5350 start_y: layout.content_origin.y
5351 + row_range.start.as_f32() * layout.position_map.line_height
5352 - layout.position_map.scroll_pixel_position.y,
5353 lines: row_range
5354 .iter_rows()
5355 .map(|row| {
5356 let line_layout =
5357 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5358 HighlightedRangeLine {
5359 start_x: if row == range.start.row() {
5360 layout.content_origin.x
5361 + line_layout.x_for_index(range.start.column() as usize)
5362 - layout.position_map.scroll_pixel_position.x
5363 } else {
5364 layout.content_origin.x
5365 - layout.position_map.scroll_pixel_position.x
5366 },
5367 end_x: if row == range.end.row() {
5368 layout.content_origin.x
5369 + line_layout.x_for_index(range.end.column() as usize)
5370 - layout.position_map.scroll_pixel_position.x
5371 } else {
5372 layout.content_origin.x + line_layout.width + line_end_overshoot
5373 - layout.position_map.scroll_pixel_position.x
5374 },
5375 }
5376 })
5377 .collect(),
5378 };
5379
5380 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5381 }
5382 }
5383
5384 fn paint_inline_diagnostics(
5385 &mut self,
5386 layout: &mut EditorLayout,
5387 window: &mut Window,
5388 cx: &mut App,
5389 ) {
5390 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5391 inline_diagnostic.1.paint(window, cx);
5392 }
5393 }
5394
5395 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5396 if let Some(mut inline_blame) = layout.inline_blame.take() {
5397 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5398 inline_blame.paint(window, cx);
5399 })
5400 }
5401 }
5402
5403 fn paint_diff_hunk_controls(
5404 &mut self,
5405 layout: &mut EditorLayout,
5406 window: &mut Window,
5407 cx: &mut App,
5408 ) {
5409 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5410 diff_hunk_control.paint(window, cx);
5411 }
5412 }
5413
5414 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5415 for mut block in layout.blocks.drain(..) {
5416 if block.overlaps_gutter {
5417 block.element.paint(window, cx);
5418 } else {
5419 let mut bounds = layout.hitbox.bounds;
5420 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
5421 window.with_content_mask(Some(ContentMask { bounds }), |window| {
5422 block.element.paint(window, cx);
5423 })
5424 }
5425 }
5426 }
5427
5428 fn paint_inline_completion_popover(
5429 &mut self,
5430 layout: &mut EditorLayout,
5431 window: &mut Window,
5432 cx: &mut App,
5433 ) {
5434 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5435 inline_completion_popover.paint(window, cx);
5436 }
5437 }
5438
5439 fn paint_mouse_context_menu(
5440 &mut self,
5441 layout: &mut EditorLayout,
5442 window: &mut Window,
5443 cx: &mut App,
5444 ) {
5445 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5446 mouse_context_menu.paint(window, cx);
5447 }
5448 }
5449
5450 fn paint_scroll_wheel_listener(
5451 &mut self,
5452 layout: &EditorLayout,
5453 window: &mut Window,
5454 cx: &mut App,
5455 ) {
5456 window.on_mouse_event({
5457 let position_map = layout.position_map.clone();
5458 let editor = self.editor.clone();
5459 let hitbox = layout.hitbox.clone();
5460 let mut delta = ScrollDelta::default();
5461
5462 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5463 // accidentally turn off their scrolling.
5464 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5465
5466 move |event: &ScrollWheelEvent, phase, window, cx| {
5467 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5468 delta = delta.coalesce(event.delta);
5469 editor.update(cx, |editor, cx| {
5470 let position_map: &PositionMap = &position_map;
5471
5472 let line_height = position_map.line_height;
5473 let max_glyph_width = position_map.em_width;
5474 let (delta, axis) = match delta {
5475 gpui::ScrollDelta::Pixels(mut pixels) => {
5476 //Trackpad
5477 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5478 (pixels, axis)
5479 }
5480
5481 gpui::ScrollDelta::Lines(lines) => {
5482 //Not trackpad
5483 let pixels =
5484 point(lines.x * max_glyph_width, lines.y * line_height);
5485 (pixels, None)
5486 }
5487 };
5488
5489 let current_scroll_position = position_map.snapshot.scroll_position();
5490 let x = (current_scroll_position.x * max_glyph_width
5491 - (delta.x * scroll_sensitivity))
5492 / max_glyph_width;
5493 let y = (current_scroll_position.y * line_height
5494 - (delta.y * scroll_sensitivity))
5495 / line_height;
5496 let mut scroll_position =
5497 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5498 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5499 if forbid_vertical_scroll {
5500 scroll_position.y = current_scroll_position.y;
5501 }
5502
5503 if scroll_position != current_scroll_position {
5504 editor.scroll(scroll_position, axis, window, cx);
5505 cx.stop_propagation();
5506 } else if y < 0. {
5507 // Due to clamping, we may fail to detect cases of overscroll to the top;
5508 // We want the scroll manager to get an update in such cases and detect the change of direction
5509 // on the next frame.
5510 cx.notify();
5511 }
5512 });
5513 }
5514 }
5515 });
5516 }
5517
5518 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5519 if !self.editor.read(cx).disable_scrolling {
5520 self.paint_scroll_wheel_listener(layout, window, cx);
5521 }
5522
5523 window.on_mouse_event({
5524 let position_map = layout.position_map.clone();
5525 let editor = self.editor.clone();
5526 let diff_hunk_range =
5527 layout
5528 .display_hunks
5529 .iter()
5530 .find_map(|(hunk, hunk_hitbox)| match hunk {
5531 DisplayDiffHunk::Folded { .. } => None,
5532 DisplayDiffHunk::Unfolded {
5533 multi_buffer_range, ..
5534 } => {
5535 if hunk_hitbox
5536 .as_ref()
5537 .map(|hitbox| hitbox.is_hovered(window))
5538 .unwrap_or(false)
5539 {
5540 Some(multi_buffer_range.clone())
5541 } else {
5542 None
5543 }
5544 }
5545 });
5546 let line_numbers = layout.line_numbers.clone();
5547
5548 move |event: &MouseDownEvent, phase, window, cx| {
5549 if phase == DispatchPhase::Bubble {
5550 match event.button {
5551 MouseButton::Left => editor.update(cx, |editor, cx| {
5552 let pending_mouse_down = editor
5553 .pending_mouse_down
5554 .get_or_insert_with(Default::default)
5555 .clone();
5556
5557 *pending_mouse_down.borrow_mut() = Some(event.clone());
5558
5559 Self::mouse_left_down(
5560 editor,
5561 event,
5562 diff_hunk_range.clone(),
5563 &position_map,
5564 line_numbers.as_ref(),
5565 window,
5566 cx,
5567 );
5568 }),
5569 MouseButton::Right => editor.update(cx, |editor, cx| {
5570 Self::mouse_right_down(editor, event, &position_map, window, cx);
5571 }),
5572 MouseButton::Middle => editor.update(cx, |editor, cx| {
5573 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5574 }),
5575 _ => {}
5576 };
5577 }
5578 }
5579 });
5580
5581 window.on_mouse_event({
5582 let editor = self.editor.clone();
5583 let position_map = layout.position_map.clone();
5584
5585 move |event: &MouseUpEvent, phase, window, cx| {
5586 if phase == DispatchPhase::Bubble {
5587 editor.update(cx, |editor, cx| {
5588 Self::mouse_up(editor, event, &position_map, window, cx)
5589 });
5590 }
5591 }
5592 });
5593
5594 window.on_mouse_event({
5595 let editor = self.editor.clone();
5596 let position_map = layout.position_map.clone();
5597 let mut captured_mouse_down = None;
5598
5599 move |event: &MouseUpEvent, phase, window, cx| match phase {
5600 // Clear the pending mouse down during the capture phase,
5601 // so that it happens even if another event handler stops
5602 // propagation.
5603 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5604 let pending_mouse_down = editor
5605 .pending_mouse_down
5606 .get_or_insert_with(Default::default)
5607 .clone();
5608
5609 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5610 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5611 captured_mouse_down = pending_mouse_down.take();
5612 window.refresh();
5613 }
5614 }),
5615 // Fire click handlers during the bubble phase.
5616 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5617 if let Some(mouse_down) = captured_mouse_down.take() {
5618 let event = ClickEvent {
5619 down: mouse_down,
5620 up: event.clone(),
5621 };
5622 Self::click(editor, &event, &position_map, window, cx);
5623 }
5624 }),
5625 }
5626 });
5627
5628 window.on_mouse_event({
5629 let position_map = layout.position_map.clone();
5630 let editor = self.editor.clone();
5631
5632 move |event: &MouseMoveEvent, phase, window, cx| {
5633 if phase == DispatchPhase::Bubble {
5634 editor.update(cx, |editor, cx| {
5635 if editor.hover_state.focused(window, cx) {
5636 return;
5637 }
5638 if event.pressed_button == Some(MouseButton::Left)
5639 || event.pressed_button == Some(MouseButton::Middle)
5640 {
5641 Self::mouse_dragged(editor, event, &position_map, window, cx)
5642 }
5643
5644 Self::mouse_moved(editor, event, &position_map, window, cx)
5645 });
5646 }
5647 }
5648 });
5649 }
5650
5651 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5652 bounds.top_right().x - self.style.scrollbar_width
5653 }
5654
5655 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5656 let style = &self.style;
5657 let font_size = style.text.font_size.to_pixels(window.rem_size());
5658 let layout = window
5659 .text_system()
5660 .shape_line(
5661 SharedString::from(" ".repeat(column)),
5662 font_size,
5663 &[TextRun {
5664 len: column,
5665 font: style.text.font(),
5666 color: Hsla::default(),
5667 background_color: None,
5668 underline: None,
5669 strikethrough: None,
5670 }],
5671 )
5672 .unwrap();
5673
5674 layout.width
5675 }
5676
5677 fn max_line_number_width(
5678 &self,
5679 snapshot: &EditorSnapshot,
5680 window: &mut Window,
5681 cx: &mut App,
5682 ) -> Pixels {
5683 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5684 self.column_pixels(digit_count as usize, window, cx)
5685 }
5686
5687 fn shape_line_number(
5688 &self,
5689 text: SharedString,
5690 color: Hsla,
5691 window: &mut Window,
5692 ) -> anyhow::Result<ShapedLine> {
5693 let run = TextRun {
5694 len: text.len(),
5695 font: self.style.text.font(),
5696 color,
5697 background_color: None,
5698 underline: None,
5699 strikethrough: None,
5700 };
5701 window.text_system().shape_line(
5702 text,
5703 self.style.text.font_size.to_pixels(window.rem_size()),
5704 &[run],
5705 )
5706 }
5707
5708 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5709 let unstaged = status.has_secondary_hunk();
5710 let unstaged_hollow = ProjectSettings::get_global(cx)
5711 .git
5712 .hunk_style
5713 .map_or(false, |style| {
5714 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5715 });
5716
5717 unstaged == unstaged_hollow
5718 }
5719}
5720
5721fn header_jump_data(
5722 snapshot: &EditorSnapshot,
5723 block_row_start: DisplayRow,
5724 height: u32,
5725 for_excerpt: &ExcerptInfo,
5726) -> JumpData {
5727 let range = &for_excerpt.range;
5728 let buffer = &for_excerpt.buffer;
5729 let jump_anchor = range.primary.start;
5730
5731 let excerpt_start = range.context.start;
5732 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5733 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5734 0
5735 } else {
5736 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5737 jump_position.row.saturating_sub(excerpt_start_point.row)
5738 };
5739
5740 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5741 .saturating_sub(
5742 snapshot
5743 .scroll_anchor
5744 .scroll_position(&snapshot.display_snapshot)
5745 .y as u32,
5746 );
5747
5748 JumpData::MultiBufferPoint {
5749 excerpt_id: for_excerpt.id,
5750 anchor: jump_anchor,
5751 position: jump_position,
5752 line_offset_from_top,
5753 }
5754}
5755
5756pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5757
5758impl AcceptEditPredictionBinding {
5759 pub fn keystroke(&self) -> Option<&Keystroke> {
5760 if let Some(binding) = self.0.as_ref() {
5761 match &binding.keystrokes() {
5762 [keystroke] => Some(keystroke),
5763 _ => None,
5764 }
5765 } else {
5766 None
5767 }
5768 }
5769}
5770
5771fn prepaint_gutter_button(
5772 button: IconButton,
5773 row: DisplayRow,
5774 line_height: Pixels,
5775 gutter_dimensions: &GutterDimensions,
5776 scroll_pixel_position: gpui::Point<Pixels>,
5777 gutter_hitbox: &Hitbox,
5778 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5779 window: &mut Window,
5780 cx: &mut App,
5781) -> AnyElement {
5782 let mut button = button.into_any_element();
5783
5784 let available_space = size(
5785 AvailableSpace::MinContent,
5786 AvailableSpace::Definite(line_height),
5787 );
5788 let indicator_size = button.layout_as_root(available_space, window, cx);
5789
5790 let blame_width = gutter_dimensions.git_blame_entries_width;
5791 let gutter_width = display_hunks
5792 .binary_search_by(|(hunk, _)| match hunk {
5793 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5794 DisplayDiffHunk::Unfolded {
5795 display_row_range, ..
5796 } => {
5797 if display_row_range.end <= row {
5798 Ordering::Less
5799 } else if display_row_range.start > row {
5800 Ordering::Greater
5801 } else {
5802 Ordering::Equal
5803 }
5804 }
5805 })
5806 .ok()
5807 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5808 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5809
5810 let mut x = left_offset;
5811 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5812 - indicator_size.width
5813 - left_offset;
5814 x += available_width / 2.;
5815
5816 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5817 y += (line_height - indicator_size.height) / 2.;
5818
5819 button.prepaint_as_root(
5820 gutter_hitbox.origin + point(x, y),
5821 available_space,
5822 window,
5823 cx,
5824 );
5825 button
5826}
5827
5828fn render_inline_blame_entry(
5829 editor: Entity<Editor>,
5830 workspace: WeakEntity<Workspace>,
5831 blame: &Entity<GitBlame>,
5832 blame_entry: BlameEntry,
5833 style: &EditorStyle,
5834 cx: &mut App,
5835) -> Option<AnyElement> {
5836 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
5837 let blame = blame.read(cx);
5838 let details = blame.details_for_entry(&blame_entry);
5839 let repository = blame.repository(cx)?.clone();
5840 renderer.render_inline_blame_entry(
5841 &style.text,
5842 blame_entry,
5843 details,
5844 repository,
5845 workspace,
5846 editor,
5847 cx,
5848 )
5849}
5850
5851fn render_blame_entry(
5852 ix: usize,
5853 blame: &Entity<GitBlame>,
5854 blame_entry: BlameEntry,
5855 style: &EditorStyle,
5856 last_used_color: &mut Option<(PlayerColor, Oid)>,
5857 editor: Entity<Editor>,
5858 workspace: Entity<Workspace>,
5859 renderer: Arc<dyn BlameRenderer>,
5860 cx: &mut App,
5861) -> Option<AnyElement> {
5862 let mut sha_color = cx
5863 .theme()
5864 .players()
5865 .color_for_participant(blame_entry.sha.into());
5866
5867 // If the last color we used is the same as the one we get for this line, but
5868 // the commit SHAs are different, then we try again to get a different color.
5869 match *last_used_color {
5870 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5871 let index: u32 = blame_entry.sha.into();
5872 sha_color = cx.theme().players().color_for_participant(index + 1);
5873 }
5874 _ => {}
5875 };
5876 last_used_color.replace((sha_color, blame_entry.sha));
5877
5878 let blame = blame.read(cx);
5879 let details = blame.details_for_entry(&blame_entry);
5880 let repository = blame.repository(cx)?;
5881 renderer.render_blame_entry(
5882 &style.text,
5883 blame_entry,
5884 details,
5885 repository,
5886 workspace.downgrade(),
5887 editor,
5888 ix,
5889 sha_color.cursor,
5890 cx,
5891 )
5892}
5893
5894#[derive(Debug)]
5895pub(crate) struct LineWithInvisibles {
5896 fragments: SmallVec<[LineFragment; 1]>,
5897 invisibles: Vec<Invisible>,
5898 len: usize,
5899 pub(crate) width: Pixels,
5900 font_size: Pixels,
5901}
5902
5903#[allow(clippy::large_enum_variant)]
5904enum LineFragment {
5905 Text(ShapedLine),
5906 Element {
5907 id: FoldId,
5908 element: Option<AnyElement>,
5909 size: Size<Pixels>,
5910 len: usize,
5911 },
5912}
5913
5914impl fmt::Debug for LineFragment {
5915 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5916 match self {
5917 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5918 LineFragment::Element { size, len, .. } => f
5919 .debug_struct("Element")
5920 .field("size", size)
5921 .field("len", len)
5922 .finish(),
5923 }
5924 }
5925}
5926
5927impl LineWithInvisibles {
5928 fn from_chunks<'a>(
5929 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5930 editor_style: &EditorStyle,
5931 max_line_len: usize,
5932 max_line_count: usize,
5933 editor_mode: EditorMode,
5934 text_width: Pixels,
5935 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5936 window: &mut Window,
5937 cx: &mut App,
5938 ) -> Vec<Self> {
5939 let text_style = &editor_style.text;
5940 let mut layouts = Vec::with_capacity(max_line_count);
5941 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5942 let mut line = String::new();
5943 let mut invisibles = Vec::new();
5944 let mut width = Pixels::ZERO;
5945 let mut len = 0;
5946 let mut styles = Vec::new();
5947 let mut non_whitespace_added = false;
5948 let mut row = 0;
5949 let mut line_exceeded_max_len = false;
5950 let font_size = text_style.font_size.to_pixels(window.rem_size());
5951
5952 let ellipsis = SharedString::from("⋯");
5953
5954 for highlighted_chunk in chunks.chain([HighlightedChunk {
5955 text: "\n",
5956 style: None,
5957 is_tab: false,
5958 replacement: None,
5959 }]) {
5960 if let Some(replacement) = highlighted_chunk.replacement {
5961 if !line.is_empty() {
5962 let shaped_line = window
5963 .text_system()
5964 .shape_line(line.clone().into(), font_size, &styles)
5965 .unwrap();
5966 width += shaped_line.width;
5967 len += shaped_line.len;
5968 fragments.push(LineFragment::Text(shaped_line));
5969 line.clear();
5970 styles.clear();
5971 }
5972
5973 match replacement {
5974 ChunkReplacement::Renderer(renderer) => {
5975 let available_width = if renderer.constrain_width {
5976 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5977 ellipsis.clone()
5978 } else {
5979 SharedString::from(Arc::from(highlighted_chunk.text))
5980 };
5981 let shaped_line = window
5982 .text_system()
5983 .shape_line(
5984 chunk,
5985 font_size,
5986 &[text_style.to_run(highlighted_chunk.text.len())],
5987 )
5988 .unwrap();
5989 AvailableSpace::Definite(shaped_line.width)
5990 } else {
5991 AvailableSpace::MinContent
5992 };
5993
5994 let mut element = (renderer.render)(&mut ChunkRendererContext {
5995 context: cx,
5996 window,
5997 max_width: text_width,
5998 });
5999 let line_height = text_style.line_height_in_pixels(window.rem_size());
6000 let size = element.layout_as_root(
6001 size(available_width, AvailableSpace::Definite(line_height)),
6002 window,
6003 cx,
6004 );
6005
6006 width += size.width;
6007 len += highlighted_chunk.text.len();
6008 fragments.push(LineFragment::Element {
6009 id: renderer.id,
6010 element: Some(element),
6011 size,
6012 len: highlighted_chunk.text.len(),
6013 });
6014 }
6015 ChunkReplacement::Str(x) => {
6016 let text_style = if let Some(style) = highlighted_chunk.style {
6017 Cow::Owned(text_style.clone().highlight(style))
6018 } else {
6019 Cow::Borrowed(text_style)
6020 };
6021
6022 let run = TextRun {
6023 len: x.len(),
6024 font: text_style.font(),
6025 color: text_style.color,
6026 background_color: text_style.background_color,
6027 underline: text_style.underline,
6028 strikethrough: text_style.strikethrough,
6029 };
6030 let line_layout = window
6031 .text_system()
6032 .shape_line(x, font_size, &[run])
6033 .unwrap()
6034 .with_len(highlighted_chunk.text.len());
6035
6036 width += line_layout.width;
6037 len += highlighted_chunk.text.len();
6038 fragments.push(LineFragment::Text(line_layout))
6039 }
6040 }
6041 } else {
6042 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6043 if ix > 0 {
6044 let shaped_line = window
6045 .text_system()
6046 .shape_line(line.clone().into(), font_size, &styles)
6047 .unwrap();
6048 width += shaped_line.width;
6049 len += shaped_line.len;
6050 fragments.push(LineFragment::Text(shaped_line));
6051 layouts.push(Self {
6052 width: mem::take(&mut width),
6053 len: mem::take(&mut len),
6054 fragments: mem::take(&mut fragments),
6055 invisibles: std::mem::take(&mut invisibles),
6056 font_size,
6057 });
6058
6059 line.clear();
6060 styles.clear();
6061 row += 1;
6062 line_exceeded_max_len = false;
6063 non_whitespace_added = false;
6064 if row == max_line_count {
6065 return layouts;
6066 }
6067 }
6068
6069 if !line_chunk.is_empty() && !line_exceeded_max_len {
6070 let text_style = if let Some(style) = highlighted_chunk.style {
6071 Cow::Owned(text_style.clone().highlight(style))
6072 } else {
6073 Cow::Borrowed(text_style)
6074 };
6075
6076 if line.len() + line_chunk.len() > max_line_len {
6077 let mut chunk_len = max_line_len - line.len();
6078 while !line_chunk.is_char_boundary(chunk_len) {
6079 chunk_len -= 1;
6080 }
6081 line_chunk = &line_chunk[..chunk_len];
6082 line_exceeded_max_len = true;
6083 }
6084
6085 styles.push(TextRun {
6086 len: line_chunk.len(),
6087 font: text_style.font(),
6088 color: text_style.color,
6089 background_color: text_style.background_color,
6090 underline: text_style.underline,
6091 strikethrough: text_style.strikethrough,
6092 });
6093
6094 if editor_mode.is_full() {
6095 // Line wrap pads its contents with fake whitespaces,
6096 // avoid printing them
6097 let is_soft_wrapped = is_row_soft_wrapped(row);
6098 if highlighted_chunk.is_tab {
6099 if non_whitespace_added || !is_soft_wrapped {
6100 invisibles.push(Invisible::Tab {
6101 line_start_offset: line.len(),
6102 line_end_offset: line.len() + line_chunk.len(),
6103 });
6104 }
6105 } else {
6106 invisibles.extend(line_chunk.char_indices().filter_map(
6107 |(index, c)| {
6108 let is_whitespace = c.is_whitespace();
6109 non_whitespace_added |= !is_whitespace;
6110 if is_whitespace
6111 && (non_whitespace_added || !is_soft_wrapped)
6112 {
6113 Some(Invisible::Whitespace {
6114 line_offset: line.len() + index,
6115 })
6116 } else {
6117 None
6118 }
6119 },
6120 ))
6121 }
6122 }
6123
6124 line.push_str(line_chunk);
6125 }
6126 }
6127 }
6128 }
6129
6130 layouts
6131 }
6132
6133 fn prepaint(
6134 &mut self,
6135 line_height: Pixels,
6136 scroll_pixel_position: gpui::Point<Pixels>,
6137 row: DisplayRow,
6138 content_origin: gpui::Point<Pixels>,
6139 line_elements: &mut SmallVec<[AnyElement; 1]>,
6140 window: &mut Window,
6141 cx: &mut App,
6142 ) {
6143 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6144 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6145 for fragment in &mut self.fragments {
6146 match fragment {
6147 LineFragment::Text(line) => {
6148 fragment_origin.x += line.width;
6149 }
6150 LineFragment::Element { element, size, .. } => {
6151 let mut element = element
6152 .take()
6153 .expect("you can't prepaint LineWithInvisibles twice");
6154
6155 // Center the element vertically within the line.
6156 let mut element_origin = fragment_origin;
6157 element_origin.y += (line_height - size.height) / 2.;
6158 element.prepaint_at(element_origin, window, cx);
6159 line_elements.push(element);
6160
6161 fragment_origin.x += size.width;
6162 }
6163 }
6164 }
6165 }
6166
6167 fn draw(
6168 &self,
6169 layout: &EditorLayout,
6170 row: DisplayRow,
6171 content_origin: gpui::Point<Pixels>,
6172 whitespace_setting: ShowWhitespaceSetting,
6173 selection_ranges: &[Range<DisplayPoint>],
6174 window: &mut Window,
6175 cx: &mut App,
6176 ) {
6177 let line_height = layout.position_map.line_height;
6178 let line_y = line_height
6179 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6180
6181 let mut fragment_origin =
6182 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6183
6184 for fragment in &self.fragments {
6185 match fragment {
6186 LineFragment::Text(line) => {
6187 line.paint(fragment_origin, line_height, window, cx)
6188 .log_err();
6189 fragment_origin.x += line.width;
6190 }
6191 LineFragment::Element { size, .. } => {
6192 fragment_origin.x += size.width;
6193 }
6194 }
6195 }
6196
6197 self.draw_invisibles(
6198 selection_ranges,
6199 layout,
6200 content_origin,
6201 line_y,
6202 row,
6203 line_height,
6204 whitespace_setting,
6205 window,
6206 cx,
6207 );
6208 }
6209
6210 fn draw_background(
6211 &self,
6212 layout: &EditorLayout,
6213 row: DisplayRow,
6214 content_origin: gpui::Point<Pixels>,
6215 window: &mut Window,
6216 cx: &mut App,
6217 ) {
6218 let line_height = layout.position_map.line_height;
6219 let line_y = line_height
6220 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6221
6222 let mut fragment_origin =
6223 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6224
6225 for fragment in &self.fragments {
6226 match fragment {
6227 LineFragment::Text(line) => {
6228 line.paint_background(fragment_origin, line_height, window, cx)
6229 .log_err();
6230 fragment_origin.x += line.width;
6231 }
6232 LineFragment::Element { size, .. } => {
6233 fragment_origin.x += size.width;
6234 }
6235 }
6236 }
6237 }
6238
6239 fn draw_invisibles(
6240 &self,
6241 selection_ranges: &[Range<DisplayPoint>],
6242 layout: &EditorLayout,
6243 content_origin: gpui::Point<Pixels>,
6244 line_y: Pixels,
6245 row: DisplayRow,
6246 line_height: Pixels,
6247 whitespace_setting: ShowWhitespaceSetting,
6248 window: &mut Window,
6249 cx: &mut App,
6250 ) {
6251 let extract_whitespace_info = |invisible: &Invisible| {
6252 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6253 Invisible::Tab {
6254 line_start_offset,
6255 line_end_offset,
6256 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6257 Invisible::Whitespace { line_offset } => {
6258 (*line_offset, line_offset + 1, &layout.space_invisible)
6259 }
6260 };
6261
6262 let x_offset = self.x_for_index(token_offset);
6263 let invisible_offset =
6264 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6265 let origin = content_origin
6266 + gpui::point(
6267 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6268 line_y,
6269 );
6270
6271 (
6272 [token_offset, token_end_offset],
6273 Box::new(move |window: &mut Window, cx: &mut App| {
6274 invisible_symbol
6275 .paint(origin, line_height, window, cx)
6276 .log_err();
6277 }),
6278 )
6279 };
6280
6281 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6282 match whitespace_setting {
6283 ShowWhitespaceSetting::None => (),
6284 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6285 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6286 let invisible_point = DisplayPoint::new(row, start as u32);
6287 if !selection_ranges
6288 .iter()
6289 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6290 {
6291 return;
6292 }
6293
6294 paint(window, cx);
6295 }),
6296
6297 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6298 // - It is a tab
6299 // - It is adjacent to an edge (start or end)
6300 // - It is adjacent to a whitespace (left or right)
6301 ShowWhitespaceSetting::Boundary => {
6302 // 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
6303 // the above cases.
6304 // Note: We zip in the original `invisibles` to check for tab equality
6305 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6306 for (([start, end], paint), invisible) in
6307 invisible_iter.zip_eq(self.invisibles.iter())
6308 {
6309 let should_render = match (&last_seen, invisible) {
6310 (_, Invisible::Tab { .. }) => true,
6311 (Some((_, last_end, _)), _) => *last_end == start,
6312 _ => false,
6313 };
6314
6315 if should_render || start == 0 || end == self.len {
6316 paint(window, cx);
6317
6318 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6319 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6320 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6321 // Note that we need to make sure that the last one is actually adjacent
6322 if !should_render_last && last_end == start {
6323 paint_last(window, cx);
6324 }
6325 }
6326 }
6327
6328 // Manually render anything within a selection
6329 let invisible_point = DisplayPoint::new(row, start as u32);
6330 if selection_ranges.iter().any(|region| {
6331 region.start <= invisible_point && invisible_point < region.end
6332 }) {
6333 paint(window, cx);
6334 }
6335
6336 last_seen = Some((should_render, end, paint));
6337 }
6338 }
6339 }
6340 }
6341
6342 pub fn x_for_index(&self, index: usize) -> Pixels {
6343 let mut fragment_start_x = Pixels::ZERO;
6344 let mut fragment_start_index = 0;
6345
6346 for fragment in &self.fragments {
6347 match fragment {
6348 LineFragment::Text(shaped_line) => {
6349 let fragment_end_index = fragment_start_index + shaped_line.len;
6350 if index < fragment_end_index {
6351 return fragment_start_x
6352 + shaped_line.x_for_index(index - fragment_start_index);
6353 }
6354 fragment_start_x += shaped_line.width;
6355 fragment_start_index = fragment_end_index;
6356 }
6357 LineFragment::Element { len, size, .. } => {
6358 let fragment_end_index = fragment_start_index + len;
6359 if index < fragment_end_index {
6360 return fragment_start_x;
6361 }
6362 fragment_start_x += size.width;
6363 fragment_start_index = fragment_end_index;
6364 }
6365 }
6366 }
6367
6368 fragment_start_x
6369 }
6370
6371 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6372 let mut fragment_start_x = Pixels::ZERO;
6373 let mut fragment_start_index = 0;
6374
6375 for fragment in &self.fragments {
6376 match fragment {
6377 LineFragment::Text(shaped_line) => {
6378 let fragment_end_x = fragment_start_x + shaped_line.width;
6379 if x < fragment_end_x {
6380 return Some(
6381 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6382 );
6383 }
6384 fragment_start_x = fragment_end_x;
6385 fragment_start_index += shaped_line.len;
6386 }
6387 LineFragment::Element { len, size, .. } => {
6388 let fragment_end_x = fragment_start_x + size.width;
6389 if x < fragment_end_x {
6390 return Some(fragment_start_index);
6391 }
6392 fragment_start_index += len;
6393 fragment_start_x = fragment_end_x;
6394 }
6395 }
6396 }
6397
6398 None
6399 }
6400
6401 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6402 let mut fragment_start_index = 0;
6403
6404 for fragment in &self.fragments {
6405 match fragment {
6406 LineFragment::Text(shaped_line) => {
6407 let fragment_end_index = fragment_start_index + shaped_line.len;
6408 if index < fragment_end_index {
6409 return shaped_line.font_id_for_index(index - fragment_start_index);
6410 }
6411 fragment_start_index = fragment_end_index;
6412 }
6413 LineFragment::Element { len, .. } => {
6414 let fragment_end_index = fragment_start_index + len;
6415 if index < fragment_end_index {
6416 return None;
6417 }
6418 fragment_start_index = fragment_end_index;
6419 }
6420 }
6421 }
6422
6423 None
6424 }
6425}
6426
6427#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6428enum Invisible {
6429 /// A tab character
6430 ///
6431 /// A tab character is internally represented by spaces (configured by the user's tab width)
6432 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6433 /// adjacency checks.
6434 Tab {
6435 line_start_offset: usize,
6436 line_end_offset: usize,
6437 },
6438 Whitespace {
6439 line_offset: usize,
6440 },
6441}
6442
6443impl EditorElement {
6444 /// Returns the rem size to use when rendering the [`EditorElement`].
6445 ///
6446 /// This allows UI elements to scale based on the `buffer_font_size`.
6447 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6448 match self.editor.read(cx).mode {
6449 EditorMode::Full {
6450 scale_ui_elements_with_buffer_font_size,
6451 ..
6452 } => {
6453 if !scale_ui_elements_with_buffer_font_size {
6454 return None;
6455 }
6456 let buffer_font_size = self.style.text.font_size;
6457 match buffer_font_size {
6458 AbsoluteLength::Pixels(pixels) => {
6459 let rem_size_scale = {
6460 // Our default UI font size is 14px on a 16px base scale.
6461 // This means the default UI font size is 0.875rems.
6462 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6463
6464 // We then determine the delta between a single rem and the default font
6465 // size scale.
6466 let default_font_size_delta = 1. - default_font_size_scale;
6467
6468 // Finally, we add this delta to 1rem to get the scale factor that
6469 // should be used to scale up the UI.
6470 1. + default_font_size_delta
6471 };
6472
6473 Some(pixels * rem_size_scale)
6474 }
6475 AbsoluteLength::Rems(rems) => {
6476 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6477 }
6478 }
6479 }
6480 // We currently use single-line and auto-height editors in UI contexts,
6481 // so we don't want to scale everything with the buffer font size, as it
6482 // ends up looking off.
6483 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6484 }
6485 }
6486}
6487
6488impl Element for EditorElement {
6489 type RequestLayoutState = ();
6490 type PrepaintState = EditorLayout;
6491
6492 fn id(&self) -> Option<ElementId> {
6493 None
6494 }
6495
6496 fn request_layout(
6497 &mut self,
6498 _: Option<&GlobalElementId>,
6499 window: &mut Window,
6500 cx: &mut App,
6501 ) -> (gpui::LayoutId, ()) {
6502 let rem_size = self.rem_size(cx);
6503 window.with_rem_size(rem_size, |window| {
6504 self.editor.update(cx, |editor, cx| {
6505 editor.set_style(self.style.clone(), window, cx);
6506
6507 let layout_id = match editor.mode {
6508 EditorMode::SingleLine { auto_width } => {
6509 let rem_size = window.rem_size();
6510
6511 let height = self.style.text.line_height_in_pixels(rem_size);
6512 if auto_width {
6513 let editor_handle = cx.entity().clone();
6514 let style = self.style.clone();
6515 window.request_measured_layout(
6516 Style::default(),
6517 move |_, _, window, cx| {
6518 let editor_snapshot = editor_handle
6519 .update(cx, |editor, cx| editor.snapshot(window, cx));
6520 let line = Self::layout_lines(
6521 DisplayRow(0)..DisplayRow(1),
6522 &editor_snapshot,
6523 &style,
6524 px(f32::MAX),
6525 |_| false, // Single lines never soft wrap
6526 window,
6527 cx,
6528 )
6529 .pop()
6530 .unwrap();
6531
6532 let font_id =
6533 window.text_system().resolve_font(&style.text.font());
6534 let font_size =
6535 style.text.font_size.to_pixels(window.rem_size());
6536 let em_width =
6537 window.text_system().em_width(font_id, font_size).unwrap();
6538
6539 size(line.width + em_width, height)
6540 },
6541 )
6542 } else {
6543 let mut style = Style::default();
6544 style.size.height = height.into();
6545 style.size.width = relative(1.).into();
6546 window.request_layout(style, None, cx)
6547 }
6548 }
6549 EditorMode::AutoHeight { max_lines } => {
6550 let editor_handle = cx.entity().clone();
6551 let max_line_number_width =
6552 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6553 window.request_measured_layout(
6554 Style::default(),
6555 move |known_dimensions, available_space, window, cx| {
6556 editor_handle
6557 .update(cx, |editor, cx| {
6558 compute_auto_height_layout(
6559 editor,
6560 max_lines,
6561 max_line_number_width,
6562 known_dimensions,
6563 available_space.width,
6564 window,
6565 cx,
6566 )
6567 })
6568 .unwrap_or_default()
6569 },
6570 )
6571 }
6572 EditorMode::Full {
6573 sized_by_content, ..
6574 } => {
6575 let mut style = Style::default();
6576 style.size.width = relative(1.).into();
6577 if sized_by_content {
6578 let snapshot = editor.snapshot(window, cx);
6579 let line_height =
6580 self.style.text.line_height_in_pixels(window.rem_size());
6581 let scroll_height =
6582 (snapshot.max_point().row().next_row().0 as f32) * line_height;
6583 style.size.height = scroll_height.into();
6584 } else {
6585 style.size.height = relative(1.).into();
6586 }
6587 window.request_layout(style, None, cx)
6588 }
6589 };
6590
6591 (layout_id, ())
6592 })
6593 })
6594 }
6595
6596 fn prepaint(
6597 &mut self,
6598 _: Option<&GlobalElementId>,
6599 bounds: Bounds<Pixels>,
6600 _: &mut Self::RequestLayoutState,
6601 window: &mut Window,
6602 cx: &mut App,
6603 ) -> Self::PrepaintState {
6604 let text_style = TextStyleRefinement {
6605 font_size: Some(self.style.text.font_size),
6606 line_height: Some(self.style.text.line_height),
6607 ..Default::default()
6608 };
6609 let focus_handle = self.editor.focus_handle(cx);
6610 window.set_view_id(self.editor.entity_id());
6611 window.set_focus_handle(&focus_handle, cx);
6612
6613 let rem_size = self.rem_size(cx);
6614 window.with_rem_size(rem_size, |window| {
6615 window.with_text_style(Some(text_style), |window| {
6616 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6617 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
6618 (editor.snapshot(window, cx), editor.read_only(cx))
6619 });
6620 let style = self.style.clone();
6621
6622 let font_id = window.text_system().resolve_font(&style.text.font());
6623 let font_size = style.text.font_size.to_pixels(window.rem_size());
6624 let line_height = style.text.line_height_in_pixels(window.rem_size());
6625 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6626 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6627
6628 let glyph_grid_cell = size(em_width, line_height);
6629
6630 let gutter_dimensions = snapshot
6631 .gutter_dimensions(
6632 font_id,
6633 font_size,
6634 self.max_line_number_width(&snapshot, window, cx),
6635 cx,
6636 )
6637 .unwrap_or_default();
6638 let text_width = bounds.size.width - gutter_dimensions.width;
6639
6640 let editor_width =
6641 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6642
6643 snapshot = self.editor.update(cx, |editor, cx| {
6644 editor.last_bounds = Some(bounds);
6645 editor.gutter_dimensions = gutter_dimensions;
6646 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6647
6648 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6649 snapshot
6650 } else {
6651 let wrap_width = match editor.soft_wrap_mode(cx) {
6652 SoftWrap::GitDiff => None,
6653 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6654 SoftWrap::EditorWidth => Some(editor_width),
6655 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6656 SoftWrap::Bounded(column) => {
6657 Some(editor_width.min(column as f32 * em_advance))
6658 }
6659 };
6660
6661 if editor.set_wrap_width(wrap_width.map(|w| w.ceil()), cx) {
6662 editor.snapshot(window, cx)
6663 } else {
6664 snapshot
6665 }
6666 }
6667 });
6668
6669 let wrap_guides = self
6670 .editor
6671 .read(cx)
6672 .wrap_guides(cx)
6673 .iter()
6674 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6675 .collect::<SmallVec<[_; 2]>>();
6676
6677 let hitbox = window.insert_hitbox(bounds, false);
6678 let gutter_hitbox =
6679 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6680 let text_hitbox = window.insert_hitbox(
6681 Bounds {
6682 origin: gutter_hitbox.top_right(),
6683 size: size(text_width, bounds.size.height),
6684 },
6685 false,
6686 );
6687
6688 // Offset the content_bounds from the text_bounds by the gutter margin (which
6689 // is roughly half a character wide) to make hit testing work more like how we want.
6690 let content_offset = point(gutter_dimensions.margin, Pixels::ZERO);
6691 let content_origin = text_hitbox.origin + content_offset;
6692
6693 let editor_text_bounds =
6694 Bounds::from_corners(content_origin, bounds.bottom_right());
6695
6696 let height_in_lines = editor_text_bounds.size.height / line_height;
6697
6698 let max_row = snapshot.max_point().row().as_f32();
6699
6700 // The max scroll position for the top of the window
6701 let max_scroll_top = if matches!(
6702 snapshot.mode,
6703 EditorMode::AutoHeight { .. } | EditorMode::SingleLine { .. }
6704 ) {
6705 (max_row - height_in_lines + 1.).max(0.)
6706 } else {
6707 let settings = EditorSettings::get_global(cx);
6708 match settings.scroll_beyond_last_line {
6709 ScrollBeyondLastLine::OnePage => max_row,
6710 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6711 ScrollBeyondLastLine::VerticalScrollMargin => {
6712 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6713 .max(0.)
6714 }
6715 }
6716 };
6717
6718 // TODO: Autoscrolling for both axes
6719 let mut autoscroll_request = None;
6720 let mut autoscroll_containing_element = false;
6721 let mut autoscroll_horizontally = false;
6722 self.editor.update(cx, |editor, cx| {
6723 autoscroll_request = editor.autoscroll_request();
6724 autoscroll_containing_element =
6725 autoscroll_request.is_some() || editor.has_pending_selection();
6726 // TODO: Is this horizontal or vertical?!
6727 autoscroll_horizontally = editor.autoscroll_vertically(
6728 bounds,
6729 line_height,
6730 max_scroll_top,
6731 window,
6732 cx,
6733 );
6734 snapshot = editor.snapshot(window, cx);
6735 });
6736
6737 let mut scroll_position = snapshot.scroll_position();
6738 // The scroll position is a fractional point, the whole number of which represents
6739 // the top of the window in terms of display rows.
6740 let start_row = DisplayRow(scroll_position.y as u32);
6741 let max_row = snapshot.max_point().row();
6742 let end_row = cmp::min(
6743 (scroll_position.y + height_in_lines).ceil() as u32,
6744 max_row.next_row().0,
6745 );
6746 let end_row = DisplayRow(end_row);
6747
6748 let row_infos = snapshot
6749 .row_infos(start_row)
6750 .take((start_row..end_row).len())
6751 .collect::<Vec<RowInfo>>();
6752 let is_row_soft_wrapped = |row: usize| {
6753 row_infos
6754 .get(row)
6755 .map_or(true, |info| info.buffer_row.is_none())
6756 };
6757
6758 let start_anchor = if start_row == Default::default() {
6759 Anchor::min()
6760 } else {
6761 snapshot.buffer_snapshot.anchor_before(
6762 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6763 )
6764 };
6765 let end_anchor = if end_row > max_row {
6766 Anchor::max()
6767 } else {
6768 snapshot.buffer_snapshot.anchor_before(
6769 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6770 )
6771 };
6772
6773 let mut highlighted_rows = self
6774 .editor
6775 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6776
6777 let is_light = cx.theme().appearance().is_light();
6778
6779 for (ix, row_info) in row_infos.iter().enumerate() {
6780 let Some(diff_status) = row_info.diff_status else {
6781 continue;
6782 };
6783
6784 let background_color = match diff_status.kind {
6785 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6786 DiffHunkStatusKind::Deleted => {
6787 cx.theme().colors().version_control_deleted
6788 }
6789 DiffHunkStatusKind::Modified => {
6790 debug_panic!("modified diff status for row info");
6791 continue;
6792 }
6793 };
6794
6795 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6796
6797 let hollow_highlight = LineHighlight {
6798 background: (background_color.opacity(if is_light {
6799 0.08
6800 } else {
6801 0.06
6802 }))
6803 .into(),
6804 border: Some(if is_light {
6805 background_color.opacity(0.48)
6806 } else {
6807 background_color.opacity(0.36)
6808 }),
6809 };
6810
6811 let filled_highlight =
6812 solid_background(background_color.opacity(hunk_opacity)).into();
6813
6814 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6815 hollow_highlight
6816 } else {
6817 filled_highlight
6818 };
6819
6820 highlighted_rows
6821 .entry(start_row + DisplayRow(ix as u32))
6822 .or_insert(background);
6823 }
6824
6825 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6826 start_anchor..end_anchor,
6827 &snapshot.display_snapshot,
6828 cx.theme().colors(),
6829 );
6830 let highlighted_gutter_ranges =
6831 self.editor.read(cx).gutter_highlights_in_range(
6832 start_anchor..end_anchor,
6833 &snapshot.display_snapshot,
6834 cx,
6835 );
6836
6837 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6838 start_anchor..end_anchor,
6839 &snapshot.display_snapshot,
6840 cx,
6841 );
6842
6843 let (local_selections, selected_buffer_ids): (
6844 Vec<Selection<Point>>,
6845 Vec<BufferId>,
6846 ) = self.editor.update(cx, |editor, cx| {
6847 let all_selections = editor.selections.all::<Point>(cx);
6848 let selected_buffer_ids = if editor.is_singleton(cx) {
6849 Vec::new()
6850 } else {
6851 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6852
6853 for selection in all_selections {
6854 for buffer_id in snapshot
6855 .buffer_snapshot
6856 .buffer_ids_for_range(selection.range())
6857 {
6858 if selected_buffer_ids.last() != Some(&buffer_id) {
6859 selected_buffer_ids.push(buffer_id);
6860 }
6861 }
6862 }
6863
6864 selected_buffer_ids
6865 };
6866
6867 let mut selections = editor
6868 .selections
6869 .disjoint_in_range(start_anchor..end_anchor, cx);
6870 selections.extend(editor.selections.pending(cx));
6871
6872 (selections, selected_buffer_ids)
6873 });
6874
6875 let (selections, mut active_rows, newest_selection_head) = self
6876 .layout_selections(
6877 start_anchor,
6878 end_anchor,
6879 &local_selections,
6880 &snapshot,
6881 start_row,
6882 end_row,
6883 window,
6884 cx,
6885 );
6886 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6887 editor.active_breakpoints(start_row..end_row, window, cx)
6888 });
6889 if cx.has_flag::<Debugger>() {
6890 for display_row in breakpoint_rows.keys() {
6891 active_rows.entry(*display_row).or_default().breakpoint = true;
6892 }
6893 }
6894
6895 let line_numbers = self.layout_line_numbers(
6896 Some(&gutter_hitbox),
6897 gutter_dimensions,
6898 line_height,
6899 scroll_position,
6900 start_row..end_row,
6901 &row_infos,
6902 &active_rows,
6903 newest_selection_head,
6904 &snapshot,
6905 window,
6906 cx,
6907 );
6908
6909 // We add the gutter breakpoint indicator to breakpoint_rows after painting
6910 // line numbers so we don't paint a line number debug accent color if a user
6911 // has their mouse over that line when a breakpoint isn't there
6912 if cx.has_flag::<Debugger>() {
6913 let gutter_breakpoint_indicator =
6914 self.editor.read(cx).gutter_breakpoint_indicator.0;
6915 if let Some((gutter_breakpoint_point, _)) =
6916 gutter_breakpoint_indicator.filter(|(_, is_active)| *is_active)
6917 {
6918 breakpoint_rows
6919 .entry(gutter_breakpoint_point.row())
6920 .or_insert_with(|| {
6921 let position = snapshot.display_point_to_anchor(
6922 gutter_breakpoint_point,
6923 Bias::Right,
6924 );
6925 let breakpoint = Breakpoint::new_standard();
6926
6927 (position, breakpoint)
6928 });
6929 }
6930 }
6931
6932 let mut expand_toggles =
6933 window.with_element_namespace("expand_toggles", |window| {
6934 self.layout_expand_toggles(
6935 &gutter_hitbox,
6936 gutter_dimensions,
6937 em_width,
6938 line_height,
6939 scroll_position,
6940 &row_infos,
6941 window,
6942 cx,
6943 )
6944 });
6945
6946 let mut crease_toggles =
6947 window.with_element_namespace("crease_toggles", |window| {
6948 self.layout_crease_toggles(
6949 start_row..end_row,
6950 &row_infos,
6951 &active_rows,
6952 &snapshot,
6953 window,
6954 cx,
6955 )
6956 });
6957 let crease_trailers =
6958 window.with_element_namespace("crease_trailers", |window| {
6959 self.layout_crease_trailers(
6960 row_infos.iter().copied(),
6961 &snapshot,
6962 window,
6963 cx,
6964 )
6965 });
6966
6967 let display_hunks = self.layout_gutter_diff_hunks(
6968 line_height,
6969 &gutter_hitbox,
6970 start_row..end_row,
6971 &snapshot,
6972 window,
6973 cx,
6974 );
6975
6976 let mut line_layouts = Self::layout_lines(
6977 start_row..end_row,
6978 &snapshot,
6979 &self.style,
6980 editor_width,
6981 is_row_soft_wrapped,
6982 window,
6983 cx,
6984 );
6985 let new_fold_widths = line_layouts
6986 .iter()
6987 .flat_map(|layout| &layout.fragments)
6988 .filter_map(|fragment| {
6989 if let LineFragment::Element { id, size, .. } = fragment {
6990 Some((*id, size.width))
6991 } else {
6992 None
6993 }
6994 });
6995 if self.editor.update(cx, |editor, cx| {
6996 editor.update_fold_widths(new_fold_widths, cx)
6997 }) {
6998 // If the fold widths have changed, we need to prepaint
6999 // the element again to account for any changes in
7000 // wrapping.
7001 return self.prepaint(None, bounds, &mut (), window, cx);
7002 }
7003
7004 let longest_line_blame_width = self
7005 .editor
7006 .update(cx, |editor, cx| {
7007 if !editor.show_git_blame_inline {
7008 return None;
7009 }
7010 let blame = editor.blame.as_ref()?;
7011 let blame_entry = blame
7012 .update(cx, |blame, cx| {
7013 let row_infos =
7014 snapshot.row_infos(snapshot.longest_row()).next()?;
7015 blame.blame_for_rows(&[row_infos], cx).next()
7016 })
7017 .flatten()?;
7018 let mut element = render_inline_blame_entry(
7019 self.editor.clone(),
7020 editor.workspace()?.downgrade(),
7021 blame,
7022 blame_entry,
7023 &style,
7024 cx,
7025 )?;
7026 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7027 Some(
7028 element
7029 .layout_as_root(AvailableSpace::min_size(), window, cx)
7030 .width
7031 + inline_blame_padding,
7032 )
7033 })
7034 .unwrap_or(Pixels::ZERO);
7035
7036 let longest_line_width = layout_line(
7037 snapshot.longest_row(),
7038 &snapshot,
7039 &style,
7040 editor_width,
7041 is_row_soft_wrapped,
7042 window,
7043 cx,
7044 )
7045 .width;
7046
7047 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
7048 text_hitbox.bounds,
7049 glyph_grid_cell,
7050 size(longest_line_width, max_row.as_f32() * line_height),
7051 longest_line_blame_width,
7052 style.scrollbar_width,
7053 editor_width,
7054 EditorSettings::get_global(cx),
7055 );
7056
7057 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
7058
7059 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7060 snapshot.sticky_header_excerpt(scroll_position.y)
7061 } else {
7062 None
7063 };
7064 let sticky_header_excerpt_id =
7065 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7066
7067 let blocks = window.with_element_namespace("blocks", |window| {
7068 self.render_blocks(
7069 start_row..end_row,
7070 &snapshot,
7071 &hitbox,
7072 &text_hitbox,
7073 editor_width,
7074 &mut scroll_width,
7075 &gutter_dimensions,
7076 em_width,
7077 gutter_dimensions.full_width(),
7078 line_height,
7079 &mut line_layouts,
7080 &local_selections,
7081 &selected_buffer_ids,
7082 is_row_soft_wrapped,
7083 sticky_header_excerpt_id,
7084 window,
7085 cx,
7086 )
7087 });
7088 let (mut blocks, row_block_types) = match blocks {
7089 Ok(blocks) => blocks,
7090 Err(resized_blocks) => {
7091 self.editor.update(cx, |editor, cx| {
7092 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7093 });
7094 return self.prepaint(None, bounds, &mut (), window, cx);
7095 }
7096 };
7097
7098 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7099 window.with_element_namespace("blocks", |window| {
7100 self.layout_sticky_buffer_header(
7101 sticky_header_excerpt,
7102 scroll_position.y,
7103 line_height,
7104 &snapshot,
7105 &hitbox,
7106 &selected_buffer_ids,
7107 &blocks,
7108 window,
7109 cx,
7110 )
7111 })
7112 });
7113
7114 let start_buffer_row =
7115 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7116 let end_buffer_row =
7117 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7118
7119 let scroll_max = point(
7120 ((scroll_width - editor_text_bounds.size.width) / em_width).max(0.0),
7121 max_scroll_top,
7122 );
7123
7124 self.editor.update(cx, |editor, cx| {
7125 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7126
7127 let autoscrolled = if autoscroll_horizontally {
7128 editor.autoscroll_horizontally(
7129 start_row,
7130 editor_width - (glyph_grid_cell.width / 2.0)
7131 + style.scrollbar_width,
7132 scroll_width,
7133 em_width,
7134 &line_layouts,
7135 cx,
7136 )
7137 } else {
7138 false
7139 };
7140
7141 if clamped || autoscrolled {
7142 snapshot = editor.snapshot(window, cx);
7143 scroll_position = snapshot.scroll_position();
7144 }
7145 });
7146
7147 let scroll_pixel_position = point(
7148 scroll_position.x * em_width,
7149 scroll_position.y * line_height,
7150 );
7151
7152 let indent_guides = self.layout_indent_guides(
7153 content_origin,
7154 text_hitbox.origin,
7155 start_buffer_row..end_buffer_row,
7156 scroll_pixel_position,
7157 line_height,
7158 &snapshot,
7159 window,
7160 cx,
7161 );
7162
7163 let crease_trailers =
7164 window.with_element_namespace("crease_trailers", |window| {
7165 self.prepaint_crease_trailers(
7166 crease_trailers,
7167 &line_layouts,
7168 line_height,
7169 content_origin,
7170 scroll_pixel_position,
7171 em_width,
7172 window,
7173 cx,
7174 )
7175 });
7176
7177 let (inline_completion_popover, inline_completion_popover_origin) = self
7178 .editor
7179 .update(cx, |editor, cx| {
7180 editor.render_edit_prediction_popover(
7181 &text_hitbox.bounds,
7182 content_origin,
7183 &snapshot,
7184 start_row..end_row,
7185 scroll_position.y,
7186 scroll_position.y + height_in_lines,
7187 &line_layouts,
7188 line_height,
7189 scroll_pixel_position,
7190 newest_selection_head,
7191 editor_width,
7192 &style,
7193 window,
7194 cx,
7195 )
7196 })
7197 .unzip();
7198
7199 let mut inline_diagnostics = self.layout_inline_diagnostics(
7200 &line_layouts,
7201 &crease_trailers,
7202 &row_block_types,
7203 content_origin,
7204 scroll_pixel_position,
7205 inline_completion_popover_origin,
7206 start_row,
7207 end_row,
7208 line_height,
7209 em_width,
7210 &style,
7211 window,
7212 cx,
7213 );
7214
7215 let mut inline_blame = None;
7216 if let Some(newest_selection_head) = newest_selection_head {
7217 let display_row = newest_selection_head.row();
7218 if (start_row..end_row).contains(&display_row)
7219 && !row_block_types.contains_key(&display_row)
7220 {
7221 let line_ix = display_row.minus(start_row) as usize;
7222 let row_info = &row_infos[line_ix];
7223 let line_layout = &line_layouts[line_ix];
7224 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7225 inline_blame = self.layout_inline_blame(
7226 display_row,
7227 row_info,
7228 line_layout,
7229 crease_trailer_layout,
7230 em_width,
7231 content_origin,
7232 scroll_pixel_position,
7233 line_height,
7234 window,
7235 cx,
7236 );
7237 if inline_blame.is_some() {
7238 // Blame overrides inline diagnostics
7239 inline_diagnostics.remove(&display_row);
7240 }
7241 }
7242 }
7243
7244 let blamed_display_rows = self.layout_blame_entries(
7245 &row_infos,
7246 em_width,
7247 scroll_position,
7248 line_height,
7249 &gutter_hitbox,
7250 gutter_dimensions.git_blame_entries_width,
7251 window,
7252 cx,
7253 );
7254
7255 self.editor.update(cx, |editor, cx| {
7256 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7257
7258 let autoscrolled = if autoscroll_horizontally {
7259 editor.autoscroll_horizontally(
7260 start_row,
7261 editor_width - (glyph_grid_cell.width / 2.0)
7262 + style.scrollbar_width,
7263 scroll_width,
7264 em_width,
7265 &line_layouts,
7266 cx,
7267 )
7268 } else {
7269 false
7270 };
7271
7272 if clamped || autoscrolled {
7273 snapshot = editor.snapshot(window, cx);
7274 scroll_position = snapshot.scroll_position();
7275 }
7276 });
7277
7278 let line_elements = self.prepaint_lines(
7279 start_row,
7280 &mut line_layouts,
7281 line_height,
7282 scroll_pixel_position,
7283 content_origin,
7284 window,
7285 cx,
7286 );
7287
7288 window.with_element_namespace("blocks", |window| {
7289 self.layout_blocks(
7290 &mut blocks,
7291 &hitbox,
7292 line_height,
7293 scroll_pixel_position,
7294 window,
7295 cx,
7296 );
7297 });
7298
7299 let cursors = self.collect_cursors(&snapshot, cx);
7300 let visible_row_range = start_row..end_row;
7301 let non_visible_cursors = cursors
7302 .iter()
7303 .any(|c| !visible_row_range.contains(&c.0.row()));
7304
7305 let visible_cursors = self.layout_visible_cursors(
7306 &snapshot,
7307 &selections,
7308 &row_block_types,
7309 start_row..end_row,
7310 &line_layouts,
7311 &text_hitbox,
7312 content_origin,
7313 scroll_position,
7314 scroll_pixel_position,
7315 line_height,
7316 em_width,
7317 em_advance,
7318 autoscroll_containing_element,
7319 window,
7320 cx,
7321 );
7322
7323 let scrollbars_layout = self.layout_scrollbars(
7324 &snapshot,
7325 scrollbar_layout_information,
7326 content_offset,
7327 scroll_position,
7328 non_visible_cursors,
7329 window,
7330 cx,
7331 );
7332
7333 let gutter_settings = EditorSettings::get_global(cx).gutter;
7334
7335 let mut code_actions_indicator = None;
7336 if let Some(newest_selection_head) = newest_selection_head {
7337 let newest_selection_point =
7338 newest_selection_head.to_point(&snapshot.display_snapshot);
7339
7340 if (start_row..end_row).contains(&newest_selection_head.row()) {
7341 self.layout_cursor_popovers(
7342 line_height,
7343 &text_hitbox,
7344 content_origin,
7345 start_row,
7346 scroll_pixel_position,
7347 &line_layouts,
7348 newest_selection_head,
7349 newest_selection_point,
7350 &style,
7351 window,
7352 cx,
7353 );
7354
7355 let show_code_actions = snapshot
7356 .show_code_actions
7357 .unwrap_or(gutter_settings.code_actions);
7358 if show_code_actions {
7359 let newest_selection_point =
7360 newest_selection_head.to_point(&snapshot.display_snapshot);
7361 if !snapshot
7362 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7363 {
7364 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7365 MultiBufferRow(newest_selection_point.row),
7366 );
7367 if let Some((buffer, range)) = buffer {
7368 let buffer_id = buffer.remote_id();
7369 let row = range.start.row;
7370 let has_test_indicator = self
7371 .editor
7372 .read(cx)
7373 .tasks
7374 .contains_key(&(buffer_id, row));
7375
7376 let has_expand_indicator = row_infos
7377 .get(
7378 (newest_selection_head.row() - start_row).0
7379 as usize,
7380 )
7381 .is_some_and(|row_info| row_info.expand_info.is_some());
7382
7383 if !has_test_indicator && !has_expand_indicator {
7384 code_actions_indicator = self
7385 .layout_code_actions_indicator(
7386 line_height,
7387 newest_selection_head,
7388 scroll_pixel_position,
7389 &gutter_dimensions,
7390 &gutter_hitbox,
7391 &mut breakpoint_rows,
7392 &display_hunks,
7393 window,
7394 cx,
7395 );
7396 }
7397 }
7398 }
7399 }
7400 }
7401 }
7402
7403 self.layout_gutter_menu(
7404 line_height,
7405 &text_hitbox,
7406 content_origin,
7407 scroll_pixel_position,
7408 gutter_dimensions.width - gutter_dimensions.left_padding,
7409 window,
7410 cx,
7411 );
7412
7413 let test_indicators = if gutter_settings.runnables {
7414 self.layout_run_indicators(
7415 line_height,
7416 start_row..end_row,
7417 &row_infos,
7418 scroll_pixel_position,
7419 &gutter_dimensions,
7420 &gutter_hitbox,
7421 &display_hunks,
7422 &snapshot,
7423 &mut breakpoint_rows,
7424 window,
7425 cx,
7426 )
7427 } else {
7428 Vec::new()
7429 };
7430
7431 let show_breakpoints = snapshot
7432 .show_breakpoints
7433 .unwrap_or(gutter_settings.breakpoints);
7434 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7435 self.layout_breakpoints(
7436 line_height,
7437 start_row..end_row,
7438 scroll_pixel_position,
7439 &gutter_dimensions,
7440 &gutter_hitbox,
7441 &display_hunks,
7442 &snapshot,
7443 breakpoint_rows,
7444 &row_infos,
7445 window,
7446 cx,
7447 )
7448 } else {
7449 vec![]
7450 };
7451
7452 self.layout_signature_help(
7453 &hitbox,
7454 &text_hitbox,
7455 content_origin,
7456 scroll_pixel_position,
7457 newest_selection_head,
7458 start_row,
7459 &line_layouts,
7460 line_height,
7461 em_width,
7462 window,
7463 cx,
7464 );
7465
7466 if !cx.has_active_drag() {
7467 self.layout_hover_popovers(
7468 &snapshot,
7469 &hitbox,
7470 &text_hitbox,
7471 start_row..end_row,
7472 content_origin,
7473 scroll_pixel_position,
7474 &line_layouts,
7475 line_height,
7476 em_width,
7477 window,
7478 cx,
7479 );
7480 }
7481
7482 let mouse_context_menu = self.layout_mouse_context_menu(
7483 &snapshot,
7484 start_row..end_row,
7485 content_origin,
7486 window,
7487 cx,
7488 );
7489
7490 window.with_element_namespace("crease_toggles", |window| {
7491 self.prepaint_crease_toggles(
7492 &mut crease_toggles,
7493 line_height,
7494 &gutter_dimensions,
7495 gutter_settings,
7496 scroll_pixel_position,
7497 &gutter_hitbox,
7498 window,
7499 cx,
7500 )
7501 });
7502
7503 window.with_element_namespace("expand_toggles", |window| {
7504 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7505 });
7506
7507 let invisible_symbol_font_size = font_size / 2.;
7508 let tab_invisible = window
7509 .text_system()
7510 .shape_line(
7511 "→".into(),
7512 invisible_symbol_font_size,
7513 &[TextRun {
7514 len: "→".len(),
7515 font: self.style.text.font(),
7516 color: cx.theme().colors().editor_invisible,
7517 background_color: None,
7518 underline: None,
7519 strikethrough: None,
7520 }],
7521 )
7522 .unwrap();
7523 let space_invisible = window
7524 .text_system()
7525 .shape_line(
7526 "•".into(),
7527 invisible_symbol_font_size,
7528 &[TextRun {
7529 len: "•".len(),
7530 font: self.style.text.font(),
7531 color: cx.theme().colors().editor_invisible,
7532 background_color: None,
7533 underline: None,
7534 strikethrough: None,
7535 }],
7536 )
7537 .unwrap();
7538
7539 let mode = snapshot.mode;
7540
7541 let position_map = Rc::new(PositionMap {
7542 size: bounds.size,
7543 visible_row_range,
7544 scroll_pixel_position,
7545 scroll_max,
7546 line_layouts,
7547 line_height,
7548 em_width,
7549 em_advance,
7550 snapshot,
7551 gutter_hitbox: gutter_hitbox.clone(),
7552 text_hitbox: text_hitbox.clone(),
7553 });
7554
7555 self.editor.update(cx, |editor, _| {
7556 editor.last_position_map = Some(position_map.clone())
7557 });
7558
7559 let diff_hunk_controls = if is_read_only {
7560 vec![]
7561 } else {
7562 self.layout_diff_hunk_controls(
7563 start_row..end_row,
7564 &row_infos,
7565 &text_hitbox,
7566 &position_map,
7567 newest_selection_head,
7568 line_height,
7569 scroll_pixel_position,
7570 &display_hunks,
7571 self.editor.clone(),
7572 window,
7573 cx,
7574 )
7575 };
7576
7577 EditorLayout {
7578 mode,
7579 position_map,
7580 visible_display_row_range: start_row..end_row,
7581 wrap_guides,
7582 indent_guides,
7583 hitbox,
7584 gutter_hitbox,
7585 display_hunks,
7586 content_origin,
7587 scrollbars_layout,
7588 active_rows,
7589 highlighted_rows,
7590 highlighted_ranges,
7591 highlighted_gutter_ranges,
7592 redacted_ranges,
7593 line_elements,
7594 line_numbers,
7595 blamed_display_rows,
7596 inline_diagnostics,
7597 inline_blame,
7598 blocks,
7599 cursors,
7600 visible_cursors,
7601 selections,
7602 inline_completion_popover,
7603 diff_hunk_controls,
7604 mouse_context_menu,
7605 test_indicators,
7606 breakpoints,
7607 code_actions_indicator,
7608 crease_toggles,
7609 crease_trailers,
7610 tab_invisible,
7611 space_invisible,
7612 sticky_buffer_header,
7613 expand_toggles,
7614 }
7615 })
7616 })
7617 })
7618 }
7619
7620 fn paint(
7621 &mut self,
7622 _: Option<&GlobalElementId>,
7623 bounds: Bounds<gpui::Pixels>,
7624 _: &mut Self::RequestLayoutState,
7625 layout: &mut Self::PrepaintState,
7626 window: &mut Window,
7627 cx: &mut App,
7628 ) {
7629 let focus_handle = self.editor.focus_handle(cx);
7630 let key_context = self
7631 .editor
7632 .update(cx, |editor, cx| editor.key_context(window, cx));
7633
7634 window.set_key_context(key_context);
7635 window.handle_input(
7636 &focus_handle,
7637 ElementInputHandler::new(bounds, self.editor.clone()),
7638 cx,
7639 );
7640 self.register_actions(window, cx);
7641 self.register_key_listeners(window, cx, layout);
7642
7643 let text_style = TextStyleRefinement {
7644 font_size: Some(self.style.text.font_size),
7645 line_height: Some(self.style.text.line_height),
7646 ..Default::default()
7647 };
7648 let rem_size = self.rem_size(cx);
7649 window.with_rem_size(rem_size, |window| {
7650 window.with_text_style(Some(text_style), |window| {
7651 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7652 self.paint_mouse_listeners(layout, window, cx);
7653 self.paint_background(layout, window, cx);
7654 self.paint_indent_guides(layout, window, cx);
7655
7656 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7657 self.paint_blamed_display_rows(layout, window, cx);
7658 self.paint_line_numbers(layout, window, cx);
7659 }
7660
7661 self.paint_text(layout, window, cx);
7662
7663 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7664 self.paint_gutter_highlights(layout, window, cx);
7665 self.paint_gutter_indicators(layout, window, cx);
7666 }
7667
7668 if !layout.blocks.is_empty() {
7669 window.with_element_namespace("blocks", |window| {
7670 self.paint_blocks(layout, window, cx);
7671 });
7672 }
7673
7674 window.with_element_namespace("blocks", |window| {
7675 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7676 sticky_header.paint(window, cx)
7677 }
7678 });
7679
7680 self.paint_scrollbars(layout, window, cx);
7681 self.paint_inline_completion_popover(layout, window, cx);
7682 self.paint_mouse_context_menu(layout, window, cx);
7683 });
7684 })
7685 })
7686 }
7687}
7688
7689pub(super) fn gutter_bounds(
7690 editor_bounds: Bounds<Pixels>,
7691 gutter_dimensions: GutterDimensions,
7692) -> Bounds<Pixels> {
7693 Bounds {
7694 origin: editor_bounds.origin,
7695 size: size(gutter_dimensions.width, editor_bounds.size.height),
7696 }
7697}
7698
7699/// Holds information required for layouting the editor scrollbars.
7700struct ScrollbarLayoutInformation {
7701 /// The bounds of the editor area (excluding the content offset).
7702 editor_bounds: Bounds<Pixels>,
7703 /// The available range to scroll within the document.
7704 scroll_range: Size<Pixels>,
7705 /// The space available for one glyph in the editor.
7706 glyph_grid_cell: Size<Pixels>,
7707}
7708
7709impl ScrollbarLayoutInformation {
7710 pub fn new(
7711 editor_bounds: Bounds<Pixels>,
7712 glyph_grid_cell: Size<Pixels>,
7713 document_size: Size<Pixels>,
7714 longest_line_blame_width: Pixels,
7715 scrollbar_width: Pixels,
7716 editor_width: Pixels,
7717 settings: &EditorSettings,
7718 ) -> Self {
7719 let vertical_overscroll = match settings.scroll_beyond_last_line {
7720 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
7721 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7722 ScrollBeyondLastLine::VerticalScrollMargin => {
7723 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7724 }
7725 };
7726
7727 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7728 glyph_grid_cell.width + scrollbar_width
7729 } else {
7730 px(0.0)
7731 };
7732
7733 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7734
7735 let scroll_range = document_size + overscroll;
7736
7737 ScrollbarLayoutInformation {
7738 editor_bounds,
7739 scroll_range,
7740 glyph_grid_cell,
7741 }
7742 }
7743}
7744
7745impl IntoElement for EditorElement {
7746 type Element = Self;
7747
7748 fn into_element(self) -> Self::Element {
7749 self
7750 }
7751}
7752
7753pub struct EditorLayout {
7754 position_map: Rc<PositionMap>,
7755 hitbox: Hitbox,
7756 gutter_hitbox: Hitbox,
7757 content_origin: gpui::Point<Pixels>,
7758 scrollbars_layout: Option<EditorScrollbars>,
7759 mode: EditorMode,
7760 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7761 indent_guides: Option<Vec<IndentGuideLayout>>,
7762 visible_display_row_range: Range<DisplayRow>,
7763 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7764 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7765 line_elements: SmallVec<[AnyElement; 1]>,
7766 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7767 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7768 blamed_display_rows: Option<Vec<AnyElement>>,
7769 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7770 inline_blame: Option<AnyElement>,
7771 blocks: Vec<BlockLayout>,
7772 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7773 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7774 redacted_ranges: Vec<Range<DisplayPoint>>,
7775 cursors: Vec<(DisplayPoint, Hsla)>,
7776 visible_cursors: Vec<CursorLayout>,
7777 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7778 code_actions_indicator: Option<AnyElement>,
7779 test_indicators: Vec<AnyElement>,
7780 breakpoints: Vec<AnyElement>,
7781 crease_toggles: Vec<Option<AnyElement>>,
7782 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7783 diff_hunk_controls: Vec<AnyElement>,
7784 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7785 inline_completion_popover: Option<AnyElement>,
7786 mouse_context_menu: Option<AnyElement>,
7787 tab_invisible: ShapedLine,
7788 space_invisible: ShapedLine,
7789 sticky_buffer_header: Option<AnyElement>,
7790}
7791
7792impl EditorLayout {
7793 fn line_end_overshoot(&self) -> Pixels {
7794 0.15 * self.position_map.line_height
7795 }
7796}
7797
7798struct LineNumberLayout {
7799 shaped_line: ShapedLine,
7800 hitbox: Option<Hitbox>,
7801}
7802
7803struct ColoredRange<T> {
7804 start: T,
7805 end: T,
7806 color: Hsla,
7807}
7808
7809impl Along for ScrollbarAxes {
7810 type Unit = bool;
7811
7812 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7813 match axis {
7814 ScrollbarAxis::Horizontal => self.horizontal,
7815 ScrollbarAxis::Vertical => self.vertical,
7816 }
7817 }
7818
7819 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
7820 match axis {
7821 ScrollbarAxis::Horizontal => ScrollbarAxes {
7822 horizontal: f(self.horizontal),
7823 vertical: self.vertical,
7824 },
7825 ScrollbarAxis::Vertical => ScrollbarAxes {
7826 horizontal: self.horizontal,
7827 vertical: f(self.vertical),
7828 },
7829 }
7830 }
7831}
7832
7833#[derive(Clone)]
7834struct EditorScrollbars {
7835 pub vertical: Option<ScrollbarLayout>,
7836 pub horizontal: Option<ScrollbarLayout>,
7837 pub visible: bool,
7838}
7839
7840impl EditorScrollbars {
7841 pub fn from_scrollbar_axes(
7842 settings_visibility: ScrollbarAxes,
7843 layout_information: &ScrollbarLayoutInformation,
7844 content_offset: gpui::Point<Pixels>,
7845 scroll_position: gpui::Point<f32>,
7846 scrollbar_width: Pixels,
7847 show_scrollbars: bool,
7848 window: &mut Window,
7849 ) -> Self {
7850 let ScrollbarLayoutInformation {
7851 editor_bounds,
7852 scroll_range,
7853 glyph_grid_cell,
7854 } = layout_information;
7855
7856 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
7857 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
7858 Corner::BottomLeft,
7859 editor_bounds.bottom_left(),
7860 size(
7861 if settings_visibility.vertical {
7862 editor_bounds.size.width - scrollbar_width
7863 } else {
7864 editor_bounds.size.width
7865 },
7866 scrollbar_width,
7867 ),
7868 ),
7869 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
7870 Corner::TopRight,
7871 editor_bounds.top_right(),
7872 size(scrollbar_width, editor_bounds.size.height),
7873 ),
7874 };
7875
7876 let mut create_scrollbar_layout = |axis| {
7877 settings_visibility
7878 .along(axis)
7879 .then(|| {
7880 (
7881 editor_bounds.size.along(axis) - content_offset.along(axis),
7882 scroll_range.along(axis),
7883 )
7884 })
7885 .filter(|(editor_content_size, scroll_range)| {
7886 // The scrollbar should only be rendered if the content does
7887 // not entirely fit into the editor
7888 // However, this only applies to the horizontal scrollbar, as information about the
7889 // vertical scrollbar layout is always needed for scrollbar diagnostics.
7890 axis != ScrollbarAxis::Horizontal || editor_content_size < scroll_range
7891 })
7892 .map(|(editor_content_size, scroll_range)| {
7893 ScrollbarLayout::new(
7894 window.insert_hitbox(scrollbar_bounds_for(axis), false),
7895 editor_content_size,
7896 scroll_range,
7897 glyph_grid_cell.along(axis),
7898 content_offset.along(axis),
7899 scroll_position.along(axis),
7900 axis,
7901 )
7902 })
7903 };
7904
7905 Self {
7906 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
7907 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
7908 visible: show_scrollbars,
7909 }
7910 }
7911
7912 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
7913 [
7914 (&self.vertical, ScrollbarAxis::Vertical),
7915 (&self.horizontal, ScrollbarAxis::Horizontal),
7916 ]
7917 .into_iter()
7918 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
7919 }
7920
7921 /// Returns the currently hovered scrollbar axis, if any.
7922 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
7923 self.iter_scrollbars()
7924 .find(|s| s.0.hitbox.is_hovered(window))
7925 }
7926}
7927
7928#[derive(Clone)]
7929struct ScrollbarLayout {
7930 hitbox: Hitbox,
7931 visible_range: Range<f32>,
7932 text_unit_size: Pixels,
7933 content_offset: Pixels,
7934 thumb_size: Pixels,
7935 axis: ScrollbarAxis,
7936}
7937
7938impl ScrollbarLayout {
7939 const BORDER_WIDTH: Pixels = px(1.0);
7940 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7941 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7942 const MIN_THUMB_SIZE: Pixels = px(25.0);
7943
7944 fn new(
7945 scrollbar_track_hitbox: Hitbox,
7946 editor_content_size: Pixels,
7947 scroll_range: Pixels,
7948 glyph_space: Pixels,
7949 content_offset: Pixels,
7950 scroll_position: f32,
7951 axis: ScrollbarAxis,
7952 ) -> Self {
7953 let track_bounds = scrollbar_track_hitbox.bounds;
7954 // The length of the track available to the scrollbar thumb. We deliberately
7955 // exclude the content size here so that the thumb aligns with the content.
7956 let track_length = track_bounds.size.along(axis) - content_offset;
7957
7958 let text_units_per_page = editor_content_size / glyph_space;
7959 let visible_range = scroll_position..scroll_position + text_units_per_page;
7960 let total_text_units = scroll_range / glyph_space;
7961
7962 let thumb_percentage = text_units_per_page / total_text_units;
7963 let thumb_size = (track_length * thumb_percentage)
7964 .max(ScrollbarLayout::MIN_THUMB_SIZE)
7965 .min(track_length);
7966 let text_unit_size =
7967 (track_length - thumb_size) / (total_text_units - text_units_per_page).max(0.);
7968
7969 ScrollbarLayout {
7970 hitbox: scrollbar_track_hitbox,
7971 visible_range,
7972 text_unit_size,
7973 content_offset,
7974 thumb_size,
7975 axis,
7976 }
7977 }
7978
7979 fn thumb_bounds(&self) -> Bounds<Pixels> {
7980 let scrollbar_track = &self.hitbox.bounds;
7981 Bounds::new(
7982 scrollbar_track
7983 .origin
7984 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
7985 scrollbar_track
7986 .size
7987 .apply_along(self.axis, |_| self.thumb_size),
7988 )
7989 }
7990
7991 fn thumb_origin(&self, origin: Pixels) -> Pixels {
7992 origin + self.content_offset + self.visible_range.start * self.text_unit_size
7993 }
7994
7995 fn marker_quads_for_ranges(
7996 &self,
7997 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7998 column: Option<usize>,
7999 ) -> Vec<PaintQuad> {
8000 struct MinMax {
8001 min: Pixels,
8002 max: Pixels,
8003 }
8004 let (x_range, height_limit) = if let Some(column) = column {
8005 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
8006 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
8007 let end = start + column_width;
8008 (
8009 Range { start, end },
8010 MinMax {
8011 min: Self::MIN_MARKER_HEIGHT,
8012 max: px(f32::MAX),
8013 },
8014 )
8015 } else {
8016 (
8017 Range {
8018 start: Self::BORDER_WIDTH,
8019 end: self.hitbox.size.width,
8020 },
8021 MinMax {
8022 min: Self::LINE_MARKER_HEIGHT,
8023 max: Self::LINE_MARKER_HEIGHT,
8024 },
8025 )
8026 };
8027
8028 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
8029 let mut pixel_ranges = row_ranges
8030 .into_iter()
8031 .map(|range| {
8032 let start_y = row_to_y(range.start);
8033 let end_y = row_to_y(range.end)
8034 + self
8035 .text_unit_size
8036 .max(height_limit.min)
8037 .min(height_limit.max);
8038 ColoredRange {
8039 start: start_y,
8040 end: end_y,
8041 color: range.color,
8042 }
8043 })
8044 .peekable();
8045
8046 let mut quads = Vec::new();
8047 while let Some(mut pixel_range) = pixel_ranges.next() {
8048 while let Some(next_pixel_range) = pixel_ranges.peek() {
8049 if pixel_range.end >= next_pixel_range.start - px(1.0)
8050 && pixel_range.color == next_pixel_range.color
8051 {
8052 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8053 pixel_ranges.next();
8054 } else {
8055 break;
8056 }
8057 }
8058
8059 let bounds = Bounds::from_corners(
8060 point(x_range.start, pixel_range.start),
8061 point(x_range.end, pixel_range.end),
8062 );
8063 quads.push(quad(
8064 bounds,
8065 Corners::default(),
8066 pixel_range.color,
8067 Edges::default(),
8068 Hsla::transparent_black(),
8069 BorderStyle::default(),
8070 ));
8071 }
8072
8073 quads
8074 }
8075}
8076
8077struct CreaseTrailerLayout {
8078 element: AnyElement,
8079 bounds: Bounds<Pixels>,
8080}
8081
8082pub(crate) struct PositionMap {
8083 pub size: Size<Pixels>,
8084 pub line_height: Pixels,
8085 pub scroll_pixel_position: gpui::Point<Pixels>,
8086 pub scroll_max: gpui::Point<f32>,
8087 pub em_width: Pixels,
8088 pub em_advance: Pixels,
8089 pub visible_row_range: Range<DisplayRow>,
8090 pub line_layouts: Vec<LineWithInvisibles>,
8091 pub snapshot: EditorSnapshot,
8092 pub text_hitbox: Hitbox,
8093 pub gutter_hitbox: Hitbox,
8094}
8095
8096#[derive(Debug, Copy, Clone)]
8097pub struct PointForPosition {
8098 pub previous_valid: DisplayPoint,
8099 pub next_valid: DisplayPoint,
8100 pub exact_unclipped: DisplayPoint,
8101 pub column_overshoot_after_line_end: u32,
8102}
8103
8104impl PointForPosition {
8105 pub fn as_valid(&self) -> Option<DisplayPoint> {
8106 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8107 Some(self.previous_valid)
8108 } else {
8109 None
8110 }
8111 }
8112}
8113
8114impl PositionMap {
8115 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8116 let text_bounds = self.text_hitbox.bounds;
8117 let scroll_position = self.snapshot.scroll_position();
8118 let position = position - text_bounds.origin;
8119 let y = position.y.max(px(0.)).min(self.size.height);
8120 let x = position.x + (scroll_position.x * self.em_width);
8121 let row = ((y / self.line_height) + scroll_position.y) as u32;
8122
8123 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8124 .line_layouts
8125 .get(row as usize - scroll_position.y as usize)
8126 {
8127 if let Some(ix) = line.index_for_x(x) {
8128 (ix as u32, px(0.))
8129 } else {
8130 (line.len as u32, px(0.).max(x - line.width))
8131 }
8132 } else {
8133 (0, x)
8134 };
8135
8136 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8137 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8138 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8139
8140 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8141 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8142 PointForPosition {
8143 previous_valid,
8144 next_valid,
8145 exact_unclipped,
8146 column_overshoot_after_line_end,
8147 }
8148 }
8149}
8150
8151struct BlockLayout {
8152 id: BlockId,
8153 x_offset: Pixels,
8154 row: Option<DisplayRow>,
8155 element: AnyElement,
8156 available_space: Size<AvailableSpace>,
8157 style: BlockStyle,
8158 overlaps_gutter: bool,
8159 is_buffer_header: bool,
8160}
8161
8162pub fn layout_line(
8163 row: DisplayRow,
8164 snapshot: &EditorSnapshot,
8165 style: &EditorStyle,
8166 text_width: Pixels,
8167 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8168 window: &mut Window,
8169 cx: &mut App,
8170) -> LineWithInvisibles {
8171 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8172 LineWithInvisibles::from_chunks(
8173 chunks,
8174 &style,
8175 MAX_LINE_LEN,
8176 1,
8177 snapshot.mode,
8178 text_width,
8179 is_row_soft_wrapped,
8180 window,
8181 cx,
8182 )
8183 .pop()
8184 .unwrap()
8185}
8186
8187#[derive(Debug)]
8188pub struct IndentGuideLayout {
8189 origin: gpui::Point<Pixels>,
8190 length: Pixels,
8191 single_indent_width: Pixels,
8192 depth: u32,
8193 active: bool,
8194 settings: IndentGuideSettings,
8195}
8196
8197pub struct CursorLayout {
8198 origin: gpui::Point<Pixels>,
8199 block_width: Pixels,
8200 line_height: Pixels,
8201 color: Hsla,
8202 shape: CursorShape,
8203 block_text: Option<ShapedLine>,
8204 cursor_name: Option<AnyElement>,
8205}
8206
8207#[derive(Debug)]
8208pub struct CursorName {
8209 string: SharedString,
8210 color: Hsla,
8211 is_top_row: bool,
8212}
8213
8214impl CursorLayout {
8215 pub fn new(
8216 origin: gpui::Point<Pixels>,
8217 block_width: Pixels,
8218 line_height: Pixels,
8219 color: Hsla,
8220 shape: CursorShape,
8221 block_text: Option<ShapedLine>,
8222 ) -> CursorLayout {
8223 CursorLayout {
8224 origin,
8225 block_width,
8226 line_height,
8227 color,
8228 shape,
8229 block_text,
8230 cursor_name: None,
8231 }
8232 }
8233
8234 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8235 Bounds {
8236 origin: self.origin + origin,
8237 size: size(self.block_width, self.line_height),
8238 }
8239 }
8240
8241 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8242 match self.shape {
8243 CursorShape::Bar => Bounds {
8244 origin: self.origin + origin,
8245 size: size(px(2.0), self.line_height),
8246 },
8247 CursorShape::Block | CursorShape::Hollow => Bounds {
8248 origin: self.origin + origin,
8249 size: size(self.block_width, self.line_height),
8250 },
8251 CursorShape::Underline => Bounds {
8252 origin: self.origin
8253 + origin
8254 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8255 size: size(self.block_width, px(2.0)),
8256 },
8257 }
8258 }
8259
8260 pub fn layout(
8261 &mut self,
8262 origin: gpui::Point<Pixels>,
8263 cursor_name: Option<CursorName>,
8264 window: &mut Window,
8265 cx: &mut App,
8266 ) {
8267 if let Some(cursor_name) = cursor_name {
8268 let bounds = self.bounds(origin);
8269 let text_size = self.line_height / 1.5;
8270
8271 let name_origin = if cursor_name.is_top_row {
8272 point(bounds.right() - px(1.), bounds.top())
8273 } else {
8274 match self.shape {
8275 CursorShape::Bar => point(
8276 bounds.right() - px(2.),
8277 bounds.top() - text_size / 2. - px(1.),
8278 ),
8279 _ => point(
8280 bounds.right() - px(1.),
8281 bounds.top() - text_size / 2. - px(1.),
8282 ),
8283 }
8284 };
8285 let mut name_element = div()
8286 .bg(self.color)
8287 .text_size(text_size)
8288 .px_0p5()
8289 .line_height(text_size + px(2.))
8290 .text_color(cursor_name.color)
8291 .child(cursor_name.string.clone())
8292 .into_any_element();
8293
8294 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8295
8296 self.cursor_name = Some(name_element);
8297 }
8298 }
8299
8300 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8301 let bounds = self.bounds(origin);
8302
8303 //Draw background or border quad
8304 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8305 outline(bounds, self.color, BorderStyle::Solid)
8306 } else {
8307 fill(bounds, self.color)
8308 };
8309
8310 if let Some(name) = &mut self.cursor_name {
8311 name.paint(window, cx);
8312 }
8313
8314 window.paint_quad(cursor);
8315
8316 if let Some(block_text) = &self.block_text {
8317 block_text
8318 .paint(self.origin + origin, self.line_height, window, cx)
8319 .log_err();
8320 }
8321 }
8322
8323 pub fn shape(&self) -> CursorShape {
8324 self.shape
8325 }
8326}
8327
8328#[derive(Debug)]
8329pub struct HighlightedRange {
8330 pub start_y: Pixels,
8331 pub line_height: Pixels,
8332 pub lines: Vec<HighlightedRangeLine>,
8333 pub color: Hsla,
8334 pub corner_radius: Pixels,
8335}
8336
8337#[derive(Debug)]
8338pub struct HighlightedRangeLine {
8339 pub start_x: Pixels,
8340 pub end_x: Pixels,
8341}
8342
8343impl HighlightedRange {
8344 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8345 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8346 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8347 self.paint_lines(
8348 self.start_y + self.line_height,
8349 &self.lines[1..],
8350 bounds,
8351 window,
8352 );
8353 } else {
8354 self.paint_lines(self.start_y, &self.lines, bounds, window);
8355 }
8356 }
8357
8358 fn paint_lines(
8359 &self,
8360 start_y: Pixels,
8361 lines: &[HighlightedRangeLine],
8362 _bounds: Bounds<Pixels>,
8363 window: &mut Window,
8364 ) {
8365 if lines.is_empty() {
8366 return;
8367 }
8368
8369 let first_line = lines.first().unwrap();
8370 let last_line = lines.last().unwrap();
8371
8372 let first_top_left = point(first_line.start_x, start_y);
8373 let first_top_right = point(first_line.end_x, start_y);
8374
8375 let curve_height = point(Pixels::ZERO, self.corner_radius);
8376 let curve_width = |start_x: Pixels, end_x: Pixels| {
8377 let max = (end_x - start_x) / 2.;
8378 let width = if max < self.corner_radius {
8379 max
8380 } else {
8381 self.corner_radius
8382 };
8383
8384 point(width, Pixels::ZERO)
8385 };
8386
8387 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8388 let mut builder = gpui::PathBuilder::fill();
8389 builder.move_to(first_top_right - top_curve_width);
8390 builder.curve_to(first_top_right + curve_height, first_top_right);
8391
8392 let mut iter = lines.iter().enumerate().peekable();
8393 while let Some((ix, line)) = iter.next() {
8394 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8395
8396 if let Some((_, next_line)) = iter.peek() {
8397 let next_top_right = point(next_line.end_x, bottom_right.y);
8398
8399 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8400 Ordering::Equal => {
8401 builder.line_to(bottom_right);
8402 }
8403 Ordering::Less => {
8404 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8405 builder.line_to(bottom_right - curve_height);
8406 if self.corner_radius > Pixels::ZERO {
8407 builder.curve_to(bottom_right - curve_width, bottom_right);
8408 }
8409 builder.line_to(next_top_right + curve_width);
8410 if self.corner_radius > Pixels::ZERO {
8411 builder.curve_to(next_top_right + curve_height, next_top_right);
8412 }
8413 }
8414 Ordering::Greater => {
8415 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8416 builder.line_to(bottom_right - curve_height);
8417 if self.corner_radius > Pixels::ZERO {
8418 builder.curve_to(bottom_right + curve_width, bottom_right);
8419 }
8420 builder.line_to(next_top_right - curve_width);
8421 if self.corner_radius > Pixels::ZERO {
8422 builder.curve_to(next_top_right + curve_height, next_top_right);
8423 }
8424 }
8425 }
8426 } else {
8427 let curve_width = curve_width(line.start_x, line.end_x);
8428 builder.line_to(bottom_right - curve_height);
8429 if self.corner_radius > Pixels::ZERO {
8430 builder.curve_to(bottom_right - curve_width, bottom_right);
8431 }
8432
8433 let bottom_left = point(line.start_x, bottom_right.y);
8434 builder.line_to(bottom_left + curve_width);
8435 if self.corner_radius > Pixels::ZERO {
8436 builder.curve_to(bottom_left - curve_height, bottom_left);
8437 }
8438 }
8439 }
8440
8441 if first_line.start_x > last_line.start_x {
8442 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8443 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8444 builder.line_to(second_top_left + curve_height);
8445 if self.corner_radius > Pixels::ZERO {
8446 builder.curve_to(second_top_left + curve_width, second_top_left);
8447 }
8448 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8449 builder.line_to(first_bottom_left - curve_width);
8450 if self.corner_radius > Pixels::ZERO {
8451 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8452 }
8453 }
8454
8455 builder.line_to(first_top_left + curve_height);
8456 if self.corner_radius > Pixels::ZERO {
8457 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8458 }
8459 builder.line_to(first_top_right - top_curve_width);
8460
8461 if let Ok(path) = builder.build() {
8462 window.paint_path(path, self.color);
8463 }
8464 }
8465}
8466
8467enum CursorPopoverType {
8468 CodeContextMenu,
8469 EditPrediction,
8470}
8471
8472pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8473 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
8474}
8475
8476fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8477 (delta.pow(1.2) / 300.0).into()
8478}
8479
8480pub fn register_action<T: Action>(
8481 editor: &Entity<Editor>,
8482 window: &mut Window,
8483 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8484) {
8485 let editor = editor.clone();
8486 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8487 let action = action.downcast_ref().unwrap();
8488 if phase == DispatchPhase::Bubble {
8489 editor.update(cx, |editor, cx| {
8490 listener(editor, action, window, cx);
8491 })
8492 }
8493 })
8494}
8495
8496fn compute_auto_height_layout(
8497 editor: &mut Editor,
8498 max_lines: usize,
8499 max_line_number_width: Pixels,
8500 known_dimensions: Size<Option<Pixels>>,
8501 available_width: AvailableSpace,
8502 window: &mut Window,
8503 cx: &mut Context<Editor>,
8504) -> Option<Size<Pixels>> {
8505 let width = known_dimensions.width.or({
8506 if let AvailableSpace::Definite(available_width) = available_width {
8507 Some(available_width)
8508 } else {
8509 None
8510 }
8511 })?;
8512 if let Some(height) = known_dimensions.height {
8513 return Some(size(width, height));
8514 }
8515
8516 let style = editor.style.as_ref().unwrap();
8517 let font_id = window.text_system().resolve_font(&style.text.font());
8518 let font_size = style.text.font_size.to_pixels(window.rem_size());
8519 let line_height = style.text.line_height_in_pixels(window.rem_size());
8520 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8521
8522 let mut snapshot = editor.snapshot(window, cx);
8523 let gutter_dimensions = snapshot
8524 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8525 .unwrap_or_default();
8526
8527 editor.gutter_dimensions = gutter_dimensions;
8528 let text_width = width - gutter_dimensions.width;
8529 let overscroll = size(em_width, px(0.));
8530
8531 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8532 if editor.set_wrap_width(Some(editor_width), cx) {
8533 snapshot = editor.snapshot(window, cx);
8534 }
8535
8536 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8537 let height = scroll_height
8538 .max(line_height)
8539 .min(line_height * max_lines as f32);
8540
8541 Some(size(width, height))
8542}
8543
8544#[cfg(test)]
8545mod tests {
8546 use super::*;
8547 use crate::{
8548 Editor, MultiBuffer,
8549 display_map::{BlockPlacement, BlockProperties},
8550 editor_tests::{init_test, update_test_language_settings},
8551 };
8552 use gpui::{TestAppContext, VisualTestContext};
8553 use language::language_settings;
8554 use log::info;
8555 use std::num::NonZeroU32;
8556 use util::test::sample_text;
8557
8558 #[gpui::test]
8559 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8560 init_test(cx, |_| {});
8561 let window = cx.add_window(|window, cx| {
8562 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8563 Editor::new(EditorMode::full(), buffer, None, window, cx)
8564 });
8565
8566 let editor = window.root(cx).unwrap();
8567 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8568 let line_height = window
8569 .update(cx, |_, window, _| {
8570 style.text.line_height_in_pixels(window.rem_size())
8571 })
8572 .unwrap();
8573 let element = EditorElement::new(&editor, style);
8574 let snapshot = window
8575 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8576 .unwrap();
8577
8578 let layouts = cx
8579 .update_window(*window, |_, window, cx| {
8580 element.layout_line_numbers(
8581 None,
8582 GutterDimensions {
8583 left_padding: Pixels::ZERO,
8584 right_padding: Pixels::ZERO,
8585 width: px(30.0),
8586 margin: Pixels::ZERO,
8587 git_blame_entries_width: None,
8588 },
8589 line_height,
8590 gpui::Point::default(),
8591 DisplayRow(0)..DisplayRow(6),
8592 &(0..6)
8593 .map(|row| RowInfo {
8594 buffer_row: Some(row),
8595 ..Default::default()
8596 })
8597 .collect::<Vec<_>>(),
8598 &BTreeMap::default(),
8599 Some(DisplayPoint::new(DisplayRow(0), 0)),
8600 &snapshot,
8601 window,
8602 cx,
8603 )
8604 })
8605 .unwrap();
8606 assert_eq!(layouts.len(), 6);
8607
8608 let relative_rows = window
8609 .update(cx, |editor, window, cx| {
8610 let snapshot = editor.snapshot(window, cx);
8611 element.calculate_relative_line_numbers(
8612 &snapshot,
8613 &(DisplayRow(0)..DisplayRow(6)),
8614 Some(DisplayRow(3)),
8615 )
8616 })
8617 .unwrap();
8618 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8619 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8620 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8621 // current line has no relative number
8622 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8623 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8624
8625 // works if cursor is before screen
8626 let relative_rows = window
8627 .update(cx, |editor, window, cx| {
8628 let snapshot = editor.snapshot(window, cx);
8629 element.calculate_relative_line_numbers(
8630 &snapshot,
8631 &(DisplayRow(3)..DisplayRow(6)),
8632 Some(DisplayRow(1)),
8633 )
8634 })
8635 .unwrap();
8636 assert_eq!(relative_rows.len(), 3);
8637 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8638 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8639 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8640
8641 // works if cursor is after screen
8642 let relative_rows = window
8643 .update(cx, |editor, window, cx| {
8644 let snapshot = editor.snapshot(window, cx);
8645 element.calculate_relative_line_numbers(
8646 &snapshot,
8647 &(DisplayRow(0)..DisplayRow(3)),
8648 Some(DisplayRow(6)),
8649 )
8650 })
8651 .unwrap();
8652 assert_eq!(relative_rows.len(), 3);
8653 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8654 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8655 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8656 }
8657
8658 #[gpui::test]
8659 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8660 init_test(cx, |_| {});
8661
8662 let window = cx.add_window(|window, cx| {
8663 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8664 Editor::new(EditorMode::full(), buffer, None, window, cx)
8665 });
8666 let cx = &mut VisualTestContext::from_window(*window, cx);
8667 let editor = window.root(cx).unwrap();
8668 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8669
8670 window
8671 .update(cx, |editor, window, cx| {
8672 editor.cursor_shape = CursorShape::Block;
8673 editor.change_selections(None, window, cx, |s| {
8674 s.select_ranges([
8675 Point::new(0, 0)..Point::new(1, 0),
8676 Point::new(3, 2)..Point::new(3, 3),
8677 Point::new(5, 6)..Point::new(6, 0),
8678 ]);
8679 });
8680 })
8681 .unwrap();
8682
8683 let (_, state) = cx.draw(
8684 point(px(500.), px(500.)),
8685 size(px(500.), px(500.)),
8686 |_, _| EditorElement::new(&editor, style),
8687 );
8688
8689 assert_eq!(state.selections.len(), 1);
8690 let local_selections = &state.selections[0].1;
8691 assert_eq!(local_selections.len(), 3);
8692 // moves cursor back one line
8693 assert_eq!(
8694 local_selections[0].head,
8695 DisplayPoint::new(DisplayRow(0), 6)
8696 );
8697 assert_eq!(
8698 local_selections[0].range,
8699 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8700 );
8701
8702 // moves cursor back one column
8703 assert_eq!(
8704 local_selections[1].range,
8705 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8706 );
8707 assert_eq!(
8708 local_selections[1].head,
8709 DisplayPoint::new(DisplayRow(3), 2)
8710 );
8711
8712 // leaves cursor on the max point
8713 assert_eq!(
8714 local_selections[2].range,
8715 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8716 );
8717 assert_eq!(
8718 local_selections[2].head,
8719 DisplayPoint::new(DisplayRow(6), 0)
8720 );
8721
8722 // active lines does not include 1 (even though the range of the selection does)
8723 assert_eq!(
8724 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8725 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8726 );
8727 }
8728
8729 #[gpui::test]
8730 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8731 init_test(cx, |_| {});
8732
8733 let window = cx.add_window(|window, cx| {
8734 let buffer = MultiBuffer::build_simple("", cx);
8735 Editor::new(EditorMode::full(), buffer, None, window, cx)
8736 });
8737 let cx = &mut VisualTestContext::from_window(*window, cx);
8738 let editor = window.root(cx).unwrap();
8739 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8740 window
8741 .update(cx, |editor, window, cx| {
8742 editor.set_placeholder_text("hello", cx);
8743 editor.insert_blocks(
8744 [BlockProperties {
8745 style: BlockStyle::Fixed,
8746 placement: BlockPlacement::Above(Anchor::min()),
8747 height: Some(3),
8748 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8749 priority: 0,
8750 }],
8751 None,
8752 cx,
8753 );
8754
8755 // Blur the editor so that it displays placeholder text.
8756 window.blur();
8757 })
8758 .unwrap();
8759
8760 let (_, state) = cx.draw(
8761 point(px(500.), px(500.)),
8762 size(px(500.), px(500.)),
8763 |_, _| EditorElement::new(&editor, style),
8764 );
8765 assert_eq!(state.position_map.line_layouts.len(), 4);
8766 assert_eq!(state.line_numbers.len(), 1);
8767 assert_eq!(
8768 state
8769 .line_numbers
8770 .get(&MultiBufferRow(0))
8771 .map(|line_number| line_number.shaped_line.text.as_ref()),
8772 Some("1")
8773 );
8774 }
8775
8776 #[gpui::test]
8777 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8778 const TAB_SIZE: u32 = 4;
8779
8780 let input_text = "\t \t|\t| a b";
8781 let expected_invisibles = vec![
8782 Invisible::Tab {
8783 line_start_offset: 0,
8784 line_end_offset: TAB_SIZE as usize,
8785 },
8786 Invisible::Whitespace {
8787 line_offset: TAB_SIZE as usize,
8788 },
8789 Invisible::Tab {
8790 line_start_offset: TAB_SIZE as usize + 1,
8791 line_end_offset: TAB_SIZE as usize * 2,
8792 },
8793 Invisible::Tab {
8794 line_start_offset: TAB_SIZE as usize * 2 + 1,
8795 line_end_offset: TAB_SIZE as usize * 3,
8796 },
8797 Invisible::Whitespace {
8798 line_offset: TAB_SIZE as usize * 3 + 1,
8799 },
8800 Invisible::Whitespace {
8801 line_offset: TAB_SIZE as usize * 3 + 3,
8802 },
8803 ];
8804 assert_eq!(
8805 expected_invisibles.len(),
8806 input_text
8807 .chars()
8808 .filter(|initial_char| initial_char.is_whitespace())
8809 .count(),
8810 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8811 );
8812
8813 for show_line_numbers in [true, false] {
8814 init_test(cx, |s| {
8815 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8816 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8817 });
8818
8819 let actual_invisibles = collect_invisibles_from_new_editor(
8820 cx,
8821 EditorMode::full(),
8822 input_text,
8823 px(500.0),
8824 show_line_numbers,
8825 );
8826
8827 assert_eq!(expected_invisibles, actual_invisibles);
8828 }
8829 }
8830
8831 #[gpui::test]
8832 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8833 init_test(cx, |s| {
8834 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8835 s.defaults.tab_size = NonZeroU32::new(4);
8836 });
8837
8838 for editor_mode_without_invisibles in [
8839 EditorMode::SingleLine { auto_width: false },
8840 EditorMode::AutoHeight { max_lines: 100 },
8841 ] {
8842 for show_line_numbers in [true, false] {
8843 let invisibles = collect_invisibles_from_new_editor(
8844 cx,
8845 editor_mode_without_invisibles,
8846 "\t\t\t| | a b",
8847 px(500.0),
8848 show_line_numbers,
8849 );
8850 assert!(
8851 invisibles.is_empty(),
8852 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
8853 );
8854 }
8855 }
8856 }
8857
8858 #[gpui::test]
8859 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8860 let tab_size = 4;
8861 let input_text = "a\tbcd ".repeat(9);
8862 let repeated_invisibles = [
8863 Invisible::Tab {
8864 line_start_offset: 1,
8865 line_end_offset: tab_size as usize,
8866 },
8867 Invisible::Whitespace {
8868 line_offset: tab_size as usize + 3,
8869 },
8870 Invisible::Whitespace {
8871 line_offset: tab_size as usize + 4,
8872 },
8873 Invisible::Whitespace {
8874 line_offset: tab_size as usize + 5,
8875 },
8876 Invisible::Whitespace {
8877 line_offset: tab_size as usize + 6,
8878 },
8879 Invisible::Whitespace {
8880 line_offset: tab_size as usize + 7,
8881 },
8882 ];
8883 let expected_invisibles = std::iter::once(repeated_invisibles)
8884 .cycle()
8885 .take(9)
8886 .flatten()
8887 .collect::<Vec<_>>();
8888 assert_eq!(
8889 expected_invisibles.len(),
8890 input_text
8891 .chars()
8892 .filter(|initial_char| initial_char.is_whitespace())
8893 .count(),
8894 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8895 );
8896 info!("Expected invisibles: {expected_invisibles:?}");
8897
8898 init_test(cx, |_| {});
8899
8900 // Put the same string with repeating whitespace pattern into editors of various size,
8901 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8902 let resize_step = 10.0;
8903 let mut editor_width = 200.0;
8904 while editor_width <= 1000.0 {
8905 for show_line_numbers in [true, false] {
8906 update_test_language_settings(cx, |s| {
8907 s.defaults.tab_size = NonZeroU32::new(tab_size);
8908 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8909 s.defaults.preferred_line_length = Some(editor_width as u32);
8910 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8911 });
8912
8913 let actual_invisibles = collect_invisibles_from_new_editor(
8914 cx,
8915 EditorMode::full(),
8916 &input_text,
8917 px(editor_width),
8918 show_line_numbers,
8919 );
8920
8921 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8922 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8923 let mut i = 0;
8924 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8925 i = actual_index;
8926 match expected_invisibles.get(i) {
8927 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8928 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8929 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8930 _ => {
8931 panic!(
8932 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
8933 )
8934 }
8935 },
8936 None => {
8937 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8938 }
8939 }
8940 }
8941 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8942 assert!(
8943 missing_expected_invisibles.is_empty(),
8944 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8945 );
8946
8947 editor_width += resize_step;
8948 }
8949 }
8950 }
8951
8952 fn collect_invisibles_from_new_editor(
8953 cx: &mut TestAppContext,
8954 editor_mode: EditorMode,
8955 input_text: &str,
8956 editor_width: Pixels,
8957 show_line_numbers: bool,
8958 ) -> Vec<Invisible> {
8959 info!(
8960 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8961 editor_width.0
8962 );
8963 let window = cx.add_window(|window, cx| {
8964 let buffer = MultiBuffer::build_simple(input_text, cx);
8965 Editor::new(editor_mode, buffer, None, window, cx)
8966 });
8967 let cx = &mut VisualTestContext::from_window(*window, cx);
8968 let editor = window.root(cx).unwrap();
8969
8970 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8971 window
8972 .update(cx, |editor, _, cx| {
8973 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8974 editor.set_wrap_width(Some(editor_width), cx);
8975 editor.set_show_line_numbers(show_line_numbers, cx);
8976 })
8977 .unwrap();
8978 let (_, state) = cx.draw(
8979 point(px(500.), px(500.)),
8980 size(px(500.), px(500.)),
8981 |_, _| EditorElement::new(&editor, style),
8982 );
8983 state
8984 .position_map
8985 .line_layouts
8986 .iter()
8987 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8988 .cloned()
8989 .collect()
8990 }
8991}