1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarAxes, ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 inlay_hint_settings,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
18 scroll::scroll_amount::ScrollAmount,
19 BlockId, ChunkReplacement, ContextMenuPlacement, CursorShape, CustomBlockId, DisplayDiffHunk,
20 DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode,
21 Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle, FocusedBlock,
22 GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor, InlayHintRefreshReason,
23 InlineCompletion, JumpData, LineDown, LineHighlight, LineUp, OpenExcerpts, PageDown, PageUp,
24 Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight, Selection, SoftWrap,
25 StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS, CURSORS_VISIBLE_FOR,
26 FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MIN_LINE_NUMBER_DIGITS,
27 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
28};
29use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
30use client::ParticipantIndex;
31use collections::{BTreeMap, HashMap, HashSet};
32use feature_flags::{Debugger, FeatureFlagAppExt};
33use file_icons::FileIcons;
34use git::{blame::BlameEntry, status::FileStatus, Oid};
35use gpui::{
36 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
37 relative, size, solid_background, transparent_black, Action, Along, AnyElement, App,
38 AvailableSpace, Axis as ScrollbarAxis, BorderStyle, Bounds, ClickEvent, ClipboardItem,
39 ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges, Element,
40 ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox, Hsla,
41 InteractiveElement, IntoElement, Keystroke, Length, ModifiersChangedEvent, MouseButton,
42 MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta,
43 ScrollWheelEvent, ShapedLine, SharedString, Size, StatefulInteractiveElement, Style, Styled,
44 Subscription, TextRun, TextStyleRefinement, Window,
45};
46use itertools::Itertools;
47use language::{
48 language_settings::{
49 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
50 ShowWhitespaceSetting,
51 },
52 ChunkRendererContext,
53};
54use lsp::DiagnosticSeverity;
55use multi_buffer::{
56 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
57 MultiBufferRow, RowInfo,
58};
59use project::{
60 debugger::breakpoint_store::Breakpoint,
61 project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
62};
63use settings::Settings;
64use smallvec::{smallvec, SmallVec};
65use std::{
66 any::TypeId,
67 borrow::Cow,
68 cmp::{self, Ordering},
69 fmt::{self, Write},
70 iter, mem,
71 ops::{Deref, Range},
72 rc::Rc,
73 sync::Arc,
74};
75use sum_tree::Bias;
76use text::BufferId;
77use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
78use ui::{h_flex, prelude::*, ButtonLike, ContextMenu, KeyBinding, Tooltip, POPOVER_Y_PADDING};
79use unicode_segmentation::UnicodeSegmentation;
80use util::{debug_panic, RangeExt, ResultExt};
81use workspace::{item::Item, notifications::NotifyTaskExt};
82
83const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
84
85/// Determines what kinds of highlights should be applied to a lines background.
86#[derive(Clone, Copy, Default)]
87struct LineHighlightSpec {
88 selection: bool,
89 breakpoint: bool,
90 _active_stack_frame: bool,
91}
92
93struct SelectionLayout {
94 head: DisplayPoint,
95 cursor_shape: CursorShape,
96 is_newest: bool,
97 is_local: bool,
98 range: Range<DisplayPoint>,
99 active_rows: Range<DisplayRow>,
100 user_name: Option<SharedString>,
101}
102
103impl SelectionLayout {
104 fn new<T: ToPoint + ToDisplayPoint + Clone>(
105 selection: Selection<T>,
106 line_mode: bool,
107 cursor_shape: CursorShape,
108 map: &DisplaySnapshot,
109 is_newest: bool,
110 is_local: bool,
111 user_name: Option<SharedString>,
112 ) -> Self {
113 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
114 let display_selection = point_selection.map(|p| p.to_display_point(map));
115 let mut range = display_selection.range();
116 let mut head = display_selection.head();
117 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
118 ..map.next_line_boundary(point_selection.end).1.row();
119
120 // vim visual line mode
121 if line_mode {
122 let point_range = map.expand_to_line(point_selection.range());
123 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
124 }
125
126 // any vim visual mode (including line mode)
127 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
128 && !range.is_empty()
129 && !selection.reversed
130 {
131 if head.column() > 0 {
132 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
133 } else if head.row().0 > 0 && head != map.max_point() {
134 head = map.clip_point(
135 DisplayPoint::new(
136 head.row().previous_row(),
137 map.line_len(head.row().previous_row()),
138 ),
139 Bias::Left,
140 );
141 // updating range.end is a no-op unless you're cursor is
142 // on the newline containing a multi-buffer divider
143 // in which case the clip_point may have moved the head up
144 // an additional row.
145 range.end = DisplayPoint::new(head.row().next_row(), 0);
146 active_rows.end = head.row();
147 }
148 }
149
150 Self {
151 head,
152 cursor_shape,
153 is_newest,
154 is_local,
155 range,
156 active_rows,
157 user_name,
158 }
159 }
160}
161
162pub struct EditorElement {
163 editor: Entity<Editor>,
164 style: EditorStyle,
165}
166
167type DisplayRowDelta = u32;
168
169impl EditorElement {
170 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
171
172 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
173 Self {
174 editor: editor.clone(),
175 style,
176 }
177 }
178
179 fn register_actions(&self, window: &mut Window, cx: &mut App) {
180 let editor = &self.editor;
181 editor.update(cx, |editor, cx| {
182 for action in editor.editor_actions.borrow().values() {
183 (action)(window, cx)
184 }
185 });
186
187 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
188 crate::clangd_ext::apply_related_actions(editor, window, cx);
189 register_action(editor, window, Editor::open_context_menu);
190 register_action(editor, window, Editor::move_left);
191 register_action(editor, window, Editor::move_right);
192 register_action(editor, window, Editor::move_down);
193 register_action(editor, window, Editor::move_down_by_lines);
194 register_action(editor, window, Editor::select_down_by_lines);
195 register_action(editor, window, Editor::move_up);
196 register_action(editor, window, Editor::move_up_by_lines);
197 register_action(editor, window, Editor::select_up_by_lines);
198 register_action(editor, window, Editor::select_page_down);
199 register_action(editor, window, Editor::select_page_up);
200 register_action(editor, window, Editor::cancel);
201 register_action(editor, window, Editor::newline);
202 register_action(editor, window, Editor::newline_above);
203 register_action(editor, window, Editor::newline_below);
204 register_action(editor, window, Editor::backspace);
205 register_action(editor, window, Editor::delete);
206 register_action(editor, window, Editor::tab);
207 register_action(editor, window, Editor::backtab);
208 register_action(editor, window, Editor::indent);
209 register_action(editor, window, Editor::outdent);
210 register_action(editor, window, Editor::autoindent);
211 register_action(editor, window, Editor::delete_line);
212 register_action(editor, window, Editor::join_lines);
213 register_action(editor, window, Editor::sort_lines_case_sensitive);
214 register_action(editor, window, Editor::sort_lines_case_insensitive);
215 register_action(editor, window, Editor::reverse_lines);
216 register_action(editor, window, Editor::shuffle_lines);
217 register_action(editor, window, Editor::convert_to_upper_case);
218 register_action(editor, window, Editor::convert_to_lower_case);
219 register_action(editor, window, Editor::convert_to_title_case);
220 register_action(editor, window, Editor::convert_to_snake_case);
221 register_action(editor, window, Editor::convert_to_kebab_case);
222 register_action(editor, window, Editor::convert_to_upper_camel_case);
223 register_action(editor, window, Editor::convert_to_lower_camel_case);
224 register_action(editor, window, Editor::convert_to_opposite_case);
225 register_action(editor, window, Editor::delete_to_previous_word_start);
226 register_action(editor, window, Editor::delete_to_previous_subword_start);
227 register_action(editor, window, Editor::delete_to_next_word_end);
228 register_action(editor, window, Editor::delete_to_next_subword_end);
229 register_action(editor, window, Editor::delete_to_beginning_of_line);
230 register_action(editor, window, Editor::delete_to_end_of_line);
231 register_action(editor, window, Editor::cut_to_end_of_line);
232 register_action(editor, window, Editor::duplicate_line_up);
233 register_action(editor, window, Editor::duplicate_line_down);
234 register_action(editor, window, Editor::duplicate_selection);
235 register_action(editor, window, Editor::move_line_up);
236 register_action(editor, window, Editor::move_line_down);
237 register_action(editor, window, Editor::transpose);
238 register_action(editor, window, Editor::rewrap);
239 register_action(editor, window, Editor::cut);
240 register_action(editor, window, Editor::kill_ring_cut);
241 register_action(editor, window, Editor::kill_ring_yank);
242 register_action(editor, window, Editor::copy);
243 register_action(editor, window, Editor::copy_and_trim);
244 register_action(editor, window, Editor::paste);
245 register_action(editor, window, Editor::undo);
246 register_action(editor, window, Editor::redo);
247 register_action(editor, window, Editor::move_page_up);
248 register_action(editor, window, Editor::move_page_down);
249 register_action(editor, window, Editor::next_screen);
250 register_action(editor, window, Editor::scroll_cursor_top);
251 register_action(editor, window, Editor::scroll_cursor_center);
252 register_action(editor, window, Editor::scroll_cursor_bottom);
253 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
254 register_action(editor, window, |editor, _: &LineDown, window, cx| {
255 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
256 });
257 register_action(editor, window, |editor, _: &LineUp, window, cx| {
258 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
259 });
260 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
261 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
262 });
263 register_action(
264 editor,
265 window,
266 |editor, HandleInput(text): &HandleInput, window, cx| {
267 if text.is_empty() {
268 return;
269 }
270 editor.handle_input(text, window, cx);
271 },
272 );
273 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
274 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
275 });
276 register_action(editor, window, |editor, _: &PageDown, window, cx| {
277 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
278 });
279 register_action(editor, window, |editor, _: &PageUp, window, cx| {
280 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
281 });
282 register_action(editor, window, Editor::move_to_previous_word_start);
283 register_action(editor, window, Editor::move_to_previous_subword_start);
284 register_action(editor, window, Editor::move_to_next_word_end);
285 register_action(editor, window, Editor::move_to_next_subword_end);
286 register_action(editor, window, Editor::move_to_beginning_of_line);
287 register_action(editor, window, Editor::move_to_end_of_line);
288 register_action(editor, window, Editor::move_to_start_of_paragraph);
289 register_action(editor, window, Editor::move_to_end_of_paragraph);
290 register_action(editor, window, Editor::move_to_beginning);
291 register_action(editor, window, Editor::move_to_end);
292 register_action(editor, window, Editor::move_to_start_of_excerpt);
293 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
294 register_action(editor, window, Editor::move_to_end_of_excerpt);
295 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
296 register_action(editor, window, Editor::select_up);
297 register_action(editor, window, Editor::select_down);
298 register_action(editor, window, Editor::select_left);
299 register_action(editor, window, Editor::select_right);
300 register_action(editor, window, Editor::select_to_previous_word_start);
301 register_action(editor, window, Editor::select_to_previous_subword_start);
302 register_action(editor, window, Editor::select_to_next_word_end);
303 register_action(editor, window, Editor::select_to_next_subword_end);
304 register_action(editor, window, Editor::select_to_beginning_of_line);
305 register_action(editor, window, Editor::select_to_end_of_line);
306 register_action(editor, window, Editor::select_to_start_of_paragraph);
307 register_action(editor, window, Editor::select_to_end_of_paragraph);
308 register_action(editor, window, Editor::select_to_start_of_excerpt);
309 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
310 register_action(editor, window, Editor::select_to_end_of_excerpt);
311 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
312 register_action(editor, window, Editor::select_to_beginning);
313 register_action(editor, window, Editor::select_to_end);
314 register_action(editor, window, Editor::select_all);
315 register_action(editor, window, |editor, action, window, cx| {
316 editor.select_all_matches(action, window, cx).log_err();
317 });
318 register_action(editor, window, Editor::select_line);
319 register_action(editor, window, Editor::split_selection_into_lines);
320 register_action(editor, window, Editor::add_selection_above);
321 register_action(editor, window, Editor::add_selection_below);
322 register_action(editor, window, |editor, action, window, cx| {
323 editor.select_next(action, window, cx).log_err();
324 });
325 register_action(editor, window, |editor, action, window, cx| {
326 editor.select_previous(action, window, cx).log_err();
327 });
328 register_action(editor, window, Editor::toggle_comments);
329 register_action(editor, window, Editor::select_larger_syntax_node);
330 register_action(editor, window, Editor::select_smaller_syntax_node);
331 register_action(editor, window, Editor::select_enclosing_symbol);
332 register_action(editor, window, Editor::move_to_enclosing_bracket);
333 register_action(editor, window, Editor::undo_selection);
334 register_action(editor, window, Editor::redo_selection);
335 if !editor.read(cx).is_singleton(cx) {
336 register_action(editor, window, Editor::expand_excerpts);
337 register_action(editor, window, Editor::expand_excerpts_up);
338 register_action(editor, window, Editor::expand_excerpts_down);
339 }
340 register_action(editor, window, Editor::go_to_diagnostic);
341 register_action(editor, window, Editor::go_to_prev_diagnostic);
342 register_action(editor, window, Editor::go_to_next_hunk);
343 register_action(editor, window, Editor::go_to_prev_hunk);
344 register_action(editor, window, |editor, action, window, cx| {
345 editor
346 .go_to_definition(action, window, cx)
347 .detach_and_log_err(cx);
348 });
349 register_action(editor, window, |editor, action, window, cx| {
350 editor
351 .go_to_definition_split(action, window, cx)
352 .detach_and_log_err(cx);
353 });
354 register_action(editor, window, |editor, action, window, cx| {
355 editor
356 .go_to_declaration(action, window, cx)
357 .detach_and_log_err(cx);
358 });
359 register_action(editor, window, |editor, action, window, cx| {
360 editor
361 .go_to_declaration_split(action, window, cx)
362 .detach_and_log_err(cx);
363 });
364 register_action(editor, window, |editor, action, window, cx| {
365 editor
366 .go_to_implementation(action, window, cx)
367 .detach_and_log_err(cx);
368 });
369 register_action(editor, window, |editor, action, window, cx| {
370 editor
371 .go_to_implementation_split(action, window, cx)
372 .detach_and_log_err(cx);
373 });
374 register_action(editor, window, |editor, action, window, cx| {
375 editor
376 .go_to_type_definition(action, window, cx)
377 .detach_and_log_err(cx);
378 });
379 register_action(editor, window, |editor, action, window, cx| {
380 editor
381 .go_to_type_definition_split(action, window, cx)
382 .detach_and_log_err(cx);
383 });
384 register_action(editor, window, Editor::open_url);
385 register_action(editor, window, Editor::open_selected_filename);
386 register_action(editor, window, Editor::fold);
387 register_action(editor, window, Editor::fold_at_level);
388 register_action(editor, window, Editor::fold_all);
389 register_action(editor, window, Editor::fold_function_bodies);
390 register_action(editor, window, Editor::fold_at);
391 register_action(editor, window, Editor::fold_recursive);
392 register_action(editor, window, Editor::toggle_fold);
393 register_action(editor, window, Editor::toggle_fold_recursive);
394 register_action(editor, window, Editor::unfold_lines);
395 register_action(editor, window, Editor::unfold_recursive);
396 register_action(editor, window, Editor::unfold_all);
397 register_action(editor, window, Editor::unfold_at);
398 register_action(editor, window, Editor::fold_selected_ranges);
399 register_action(editor, window, Editor::set_mark);
400 register_action(editor, window, Editor::swap_selection_ends);
401 register_action(editor, window, Editor::show_completions);
402 register_action(editor, window, Editor::show_word_completions);
403 register_action(editor, window, Editor::toggle_code_actions);
404 register_action(editor, window, Editor::open_excerpts);
405 register_action(editor, window, Editor::open_excerpts_in_split);
406 register_action(editor, window, Editor::open_proposed_changes_editor);
407 register_action(editor, window, Editor::toggle_soft_wrap);
408 register_action(editor, window, Editor::toggle_tab_bar);
409 register_action(editor, window, Editor::toggle_line_numbers);
410 register_action(editor, window, Editor::toggle_relative_line_numbers);
411 register_action(editor, window, Editor::toggle_indent_guides);
412 register_action(editor, window, Editor::toggle_inlay_hints);
413 register_action(editor, window, Editor::toggle_edit_predictions);
414 register_action(editor, window, Editor::toggle_inline_diagnostics);
415 register_action(editor, window, hover_popover::hover);
416 register_action(editor, window, Editor::reveal_in_finder);
417 register_action(editor, window, Editor::copy_path);
418 register_action(editor, window, Editor::copy_relative_path);
419 register_action(editor, window, Editor::copy_file_name);
420 register_action(editor, window, Editor::copy_file_name_without_extension);
421 register_action(editor, window, Editor::copy_highlight_json);
422 register_action(editor, window, Editor::copy_permalink_to_line);
423 register_action(editor, window, Editor::open_permalink_to_line);
424 register_action(editor, window, Editor::copy_file_location);
425 register_action(editor, window, Editor::toggle_git_blame);
426 register_action(editor, window, Editor::toggle_git_blame_inline);
427 register_action(editor, window, Editor::toggle_selected_diff_hunks);
428 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
429 register_action(editor, window, Editor::stage_and_next);
430 register_action(editor, window, Editor::unstage_and_next);
431 register_action(editor, window, Editor::expand_all_diff_hunks);
432
433 register_action(editor, window, |editor, action, window, cx| {
434 if let Some(task) = editor.format(action, window, cx) {
435 task.detach_and_notify_err(window, cx);
436 } else {
437 cx.propagate();
438 }
439 });
440 register_action(editor, window, |editor, action, window, cx| {
441 if let Some(task) = editor.format_selections(action, window, cx) {
442 task.detach_and_notify_err(window, cx);
443 } else {
444 cx.propagate();
445 }
446 });
447 register_action(editor, window, |editor, action, window, cx| {
448 if let Some(task) = editor.organize_imports(action, window, cx) {
449 task.detach_and_notify_err(window, cx);
450 } else {
451 cx.propagate();
452 }
453 });
454 register_action(editor, window, Editor::restart_language_server);
455 register_action(editor, window, Editor::show_character_palette);
456 register_action(editor, window, |editor, action, window, cx| {
457 if let Some(task) = editor.confirm_completion(action, window, cx) {
458 task.detach_and_notify_err(window, cx);
459 } else {
460 cx.propagate();
461 }
462 });
463 register_action(editor, window, |editor, action, window, cx| {
464 if let Some(task) = editor.compose_completion(action, window, cx) {
465 task.detach_and_notify_err(window, cx);
466 } else {
467 cx.propagate();
468 }
469 });
470 register_action(editor, window, |editor, action, window, cx| {
471 if let Some(task) = editor.confirm_code_action(action, window, cx) {
472 task.detach_and_notify_err(window, cx);
473 } else {
474 cx.propagate();
475 }
476 });
477 register_action(editor, window, |editor, action, window, cx| {
478 if let Some(task) = editor.rename(action, window, cx) {
479 task.detach_and_notify_err(window, cx);
480 } else {
481 cx.propagate();
482 }
483 });
484 register_action(editor, window, |editor, action, window, cx| {
485 if let Some(task) = editor.confirm_rename(action, window, cx) {
486 task.detach_and_notify_err(window, cx);
487 } else {
488 cx.propagate();
489 }
490 });
491 register_action(editor, window, |editor, action, window, cx| {
492 if let Some(task) = editor.find_all_references(action, window, cx) {
493 task.detach_and_log_err(cx);
494 } else {
495 cx.propagate();
496 }
497 });
498 register_action(editor, window, Editor::show_signature_help);
499 register_action(editor, window, Editor::next_edit_prediction);
500 register_action(editor, window, Editor::previous_edit_prediction);
501 register_action(editor, window, Editor::show_inline_completion);
502 register_action(editor, window, Editor::context_menu_first);
503 register_action(editor, window, Editor::context_menu_prev);
504 register_action(editor, window, Editor::context_menu_next);
505 register_action(editor, window, Editor::context_menu_last);
506 register_action(editor, window, Editor::display_cursor_names);
507 register_action(editor, window, Editor::unique_lines_case_insensitive);
508 register_action(editor, window, Editor::unique_lines_case_sensitive);
509 register_action(editor, window, Editor::accept_partial_inline_completion);
510 register_action(editor, window, Editor::accept_edit_prediction);
511 register_action(editor, window, Editor::restore_file);
512 register_action(editor, window, Editor::git_restore);
513 register_action(editor, window, Editor::apply_all_diff_hunks);
514 register_action(editor, window, Editor::apply_selected_diff_hunks);
515 register_action(editor, window, Editor::open_active_item_in_terminal);
516 register_action(editor, window, Editor::reload_file);
517 register_action(editor, window, Editor::spawn_nearest_task);
518 register_action(editor, window, Editor::insert_uuid_v4);
519 register_action(editor, window, Editor::insert_uuid_v7);
520 register_action(editor, window, Editor::open_selections_in_multibuffer);
521 if cx.has_flag::<Debugger>() {
522 register_action(editor, window, Editor::toggle_breakpoint);
523 register_action(editor, window, Editor::edit_log_breakpoint);
524 register_action(editor, window, Editor::enable_breakpoint);
525 register_action(editor, window, Editor::disable_breakpoint);
526 }
527 }
528
529 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
530 let position_map = layout.position_map.clone();
531 window.on_key_event({
532 let editor = self.editor.clone();
533 move |event: &ModifiersChangedEvent, phase, window, cx| {
534 if phase != DispatchPhase::Bubble {
535 return;
536 }
537 editor.update(cx, |editor, cx| {
538 let inlay_hint_settings = inlay_hint_settings(
539 editor.selections.newest_anchor().head(),
540 &editor.buffer.read(cx).snapshot(cx),
541 cx,
542 );
543
544 if let Some(inlay_modifiers) = inlay_hint_settings
545 .toggle_on_modifiers_press
546 .as_ref()
547 .filter(|modifiers| modifiers.modified())
548 {
549 editor.refresh_inlay_hints(
550 InlayHintRefreshReason::ModifiersChanged(
551 inlay_modifiers == &event.modifiers,
552 ),
553 cx,
554 );
555 }
556
557 if editor.hover_state.focused(window, cx) {
558 return;
559 }
560
561 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
562 })
563 }
564 });
565 }
566
567 fn mouse_left_down(
568 editor: &mut Editor,
569 event: &MouseDownEvent,
570 hovered_hunk: Option<Range<Anchor>>,
571 position_map: &PositionMap,
572 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
573 window: &mut Window,
574 cx: &mut Context<Editor>,
575 ) {
576 if window.default_prevented() {
577 return;
578 }
579
580 let text_hitbox = &position_map.text_hitbox;
581 let gutter_hitbox = &position_map.gutter_hitbox;
582 let mut click_count = event.click_count;
583 let mut modifiers = event.modifiers;
584
585 if let Some(hovered_hunk) = hovered_hunk {
586 editor.toggle_single_diff_hunk(hovered_hunk, cx);
587 cx.notify();
588 return;
589 } else if gutter_hitbox.is_hovered(window) {
590 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
591 } else if !text_hitbox.is_hovered(window) {
592 return;
593 }
594
595 let is_singleton = editor.buffer().read(cx).is_singleton();
596
597 if click_count == 2 && !is_singleton {
598 match EditorSettings::get_global(cx).double_click_in_multibuffer {
599 DoubleClickInMultibuffer::Select => {
600 // do nothing special on double click, all selection logic is below
601 }
602 DoubleClickInMultibuffer::Open => {
603 if modifiers.alt {
604 // if double click is made with alt, pretend it's a regular double click without opening and alt,
605 // and run the selection logic.
606 modifiers.alt = false;
607 } else {
608 let scroll_position_row =
609 position_map.scroll_pixel_position.y / position_map.line_height;
610 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
611 + position_map.scroll_pixel_position.y)
612 / position_map.line_height)
613 as u32;
614 let multi_buffer_row = position_map
615 .snapshot
616 .display_point_to_point(
617 DisplayPoint::new(DisplayRow(display_row), 0),
618 Bias::Right,
619 )
620 .row;
621 let line_offset_from_top = display_row - scroll_position_row as u32;
622 // if double click is made without alt, open the corresponding excerp
623 editor.open_excerpts_common(
624 Some(JumpData::MultiBufferRow {
625 row: MultiBufferRow(multi_buffer_row),
626 line_offset_from_top,
627 }),
628 false,
629 window,
630 cx,
631 );
632 return;
633 }
634 }
635 }
636 }
637
638 let point_for_position = position_map.point_for_position(event.position);
639 let position = point_for_position.previous_valid;
640 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
641 editor.select(
642 SelectPhase::BeginColumnar {
643 position,
644 reset: false,
645 goal_column: point_for_position.exact_unclipped.column(),
646 },
647 window,
648 cx,
649 );
650 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
651 {
652 editor.select(
653 SelectPhase::Extend {
654 position,
655 click_count,
656 },
657 window,
658 cx,
659 );
660 } else {
661 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
662 let multi_cursor_modifier = match multi_cursor_setting {
663 MultiCursorModifier::Alt => modifiers.alt,
664 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
665 };
666 editor.select(
667 SelectPhase::Begin {
668 position,
669 add: multi_cursor_modifier,
670 click_count,
671 },
672 window,
673 cx,
674 );
675 }
676 cx.stop_propagation();
677
678 if !is_singleton {
679 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
680 + position_map.scroll_pixel_position.y)
681 / position_map.line_height) as u32;
682 let multi_buffer_row = position_map
683 .snapshot
684 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
685 .row;
686 if line_numbers
687 .get(&MultiBufferRow(multi_buffer_row))
688 .and_then(|line_number| line_number.hitbox.as_ref())
689 .is_some_and(|hitbox| hitbox.contains(&event.position))
690 {
691 let scroll_position_row =
692 position_map.scroll_pixel_position.y / position_map.line_height;
693 let line_offset_from_top = display_row - scroll_position_row as u32;
694
695 editor.open_excerpts_common(
696 Some(JumpData::MultiBufferRow {
697 row: MultiBufferRow(multi_buffer_row),
698 line_offset_from_top,
699 }),
700 modifiers.alt,
701 window,
702 cx,
703 );
704 cx.stop_propagation();
705 }
706 }
707 }
708
709 fn mouse_right_down(
710 editor: &mut Editor,
711 event: &MouseDownEvent,
712 position_map: &PositionMap,
713 window: &mut Window,
714 cx: &mut Context<Editor>,
715 ) {
716 if !position_map.text_hitbox.is_hovered(window) {
717 return;
718 }
719 let point_for_position = position_map.point_for_position(event.position);
720 mouse_context_menu::deploy_context_menu(
721 editor,
722 Some(event.position),
723 point_for_position.previous_valid,
724 window,
725 cx,
726 );
727 cx.stop_propagation();
728 }
729
730 fn mouse_middle_down(
731 editor: &mut Editor,
732 event: &MouseDownEvent,
733 position_map: &PositionMap,
734 window: &mut Window,
735 cx: &mut Context<Editor>,
736 ) {
737 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
738 return;
739 }
740
741 let point_for_position = position_map.point_for_position(event.position);
742 let position = point_for_position.previous_valid;
743
744 editor.select(
745 SelectPhase::BeginColumnar {
746 position,
747 reset: true,
748 goal_column: point_for_position.exact_unclipped.column(),
749 },
750 window,
751 cx,
752 );
753 }
754
755 fn mouse_up(
756 editor: &mut Editor,
757 event: &MouseUpEvent,
758 position_map: &PositionMap,
759 window: &mut Window,
760 cx: &mut Context<Editor>,
761 ) {
762 let text_hitbox = &position_map.text_hitbox;
763 let end_selection = editor.has_pending_selection();
764 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
765
766 if end_selection {
767 editor.select(SelectPhase::End, window, cx);
768 }
769
770 if end_selection && pending_nonempty_selections {
771 cx.stop_propagation();
772 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
773 && event.button == MouseButton::Middle
774 {
775 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
776 return;
777 }
778
779 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
780 if EditorSettings::get_global(cx).middle_click_paste {
781 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
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::Begin {
787 position,
788 add: false,
789 click_count: 1,
790 },
791 window,
792 cx,
793 );
794 editor.insert(&text, window, cx);
795 }
796 cx.stop_propagation()
797 }
798 }
799 }
800
801 fn click(
802 editor: &mut Editor,
803 event: &ClickEvent,
804 position_map: &PositionMap,
805 window: &mut Window,
806 cx: &mut Context<Editor>,
807 ) {
808 let text_hitbox = &position_map.text_hitbox;
809 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
810
811 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
812 let multi_cursor_modifier = match multi_cursor_setting {
813 MultiCursorModifier::Alt => event.modifiers().secondary(),
814 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
815 };
816
817 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
818 let point = position_map.point_for_position(event.up.position);
819 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
820
821 cx.stop_propagation();
822 }
823 }
824
825 fn mouse_dragged(
826 editor: &mut Editor,
827 event: &MouseMoveEvent,
828 position_map: &PositionMap,
829 window: &mut Window,
830 cx: &mut Context<Editor>,
831 ) {
832 if !editor.has_pending_selection() {
833 return;
834 }
835
836 let text_bounds = position_map.text_hitbox.bounds;
837 let point_for_position = position_map.point_for_position(event.position);
838 let mut scroll_delta = gpui::Point::<f32>::default();
839 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
840 let top = text_bounds.origin.y + vertical_margin;
841 let bottom = text_bounds.bottom_left().y - vertical_margin;
842 if event.position.y < top {
843 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
844 }
845 if event.position.y > bottom {
846 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
847 }
848
849 // We need horizontal width of text
850 let style = editor.style.clone().unwrap_or_default();
851 let font_id = window.text_system().resolve_font(&style.text.font());
852 let font_size = style.text.font_size.to_pixels(window.rem_size());
853 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
854
855 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
856
857 let scroll_space: Pixels = scroll_margin_x * em_width;
858
859 let left = text_bounds.origin.x + scroll_space;
860 let right = text_bounds.top_right().x - scroll_space;
861
862 if event.position.x < left {
863 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
864 }
865 if event.position.x > right {
866 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
867 }
868
869 editor.select(
870 SelectPhase::Update {
871 position: point_for_position.previous_valid,
872 goal_column: point_for_position.exact_unclipped.column(),
873 scroll_delta,
874 },
875 window,
876 cx,
877 );
878 }
879
880 fn mouse_moved(
881 editor: &mut Editor,
882 event: &MouseMoveEvent,
883 position_map: &PositionMap,
884 window: &mut Window,
885 cx: &mut Context<Editor>,
886 ) {
887 let text_hitbox = &position_map.text_hitbox;
888 let gutter_hitbox = &position_map.gutter_hitbox;
889 let modifiers = event.modifiers;
890 let gutter_hovered = gutter_hitbox.is_hovered(window);
891 editor.set_gutter_hovered(gutter_hovered, cx);
892 editor.gutter_breakpoint_indicator = None;
893 editor.mouse_cursor_hidden = false;
894
895 if gutter_hovered {
896 let new_point = position_map
897 .point_for_position(event.position)
898 .previous_valid;
899 let buffer_anchor = position_map
900 .snapshot
901 .display_point_to_anchor(new_point, Bias::Left);
902
903 if position_map
904 .snapshot
905 .buffer_snapshot
906 .buffer_for_excerpt(buffer_anchor.excerpt_id)
907 .is_some_and(|buffer| buffer.file().is_some())
908 {
909 editor.gutter_breakpoint_indicator = Some(new_point);
910 }
911 }
912
913 cx.notify();
914
915 // Don't trigger hover popover if mouse is hovering over context menu
916 if text_hitbox.is_hovered(window) {
917 let point_for_position = position_map.point_for_position(event.position);
918
919 editor.update_hovered_link(
920 point_for_position,
921 &position_map.snapshot,
922 modifiers,
923 window,
924 cx,
925 );
926
927 if let Some(point) = point_for_position.as_valid() {
928 let anchor = position_map
929 .snapshot
930 .buffer_snapshot
931 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
932 hover_at(editor, Some(anchor), window, cx);
933 Self::update_visible_cursor(editor, point, position_map, window, cx);
934 } else {
935 hover_at(editor, None, window, cx);
936 }
937 } else {
938 editor.hide_hovered_link(cx);
939 hover_at(editor, None, window, cx);
940 if gutter_hovered {
941 cx.stop_propagation();
942 }
943 }
944 }
945
946 fn update_visible_cursor(
947 editor: &mut Editor,
948 point: DisplayPoint,
949 position_map: &PositionMap,
950 window: &mut Window,
951 cx: &mut Context<Editor>,
952 ) {
953 let snapshot = &position_map.snapshot;
954 let Some(hub) = editor.collaboration_hub() else {
955 return;
956 };
957 let start = snapshot.display_snapshot.clip_point(
958 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
959 Bias::Left,
960 );
961 let end = snapshot.display_snapshot.clip_point(
962 DisplayPoint::new(
963 point.row(),
964 (point.column() + 1).min(snapshot.line_len(point.row())),
965 ),
966 Bias::Right,
967 );
968
969 let range = snapshot
970 .buffer_snapshot
971 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
972 ..snapshot
973 .buffer_snapshot
974 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
975
976 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
977 return;
978 };
979 let key = crate::HoveredCursor {
980 replica_id: selection.replica_id,
981 selection_id: selection.selection.id,
982 };
983 editor.hovered_cursors.insert(
984 key.clone(),
985 cx.spawn_in(window, async move |editor, cx| {
986 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
987 editor
988 .update(cx, |editor, cx| {
989 editor.hovered_cursors.remove(&key);
990 cx.notify();
991 })
992 .ok();
993 }),
994 );
995 cx.notify()
996 }
997
998 fn layout_selections(
999 &self,
1000 start_anchor: Anchor,
1001 end_anchor: Anchor,
1002 local_selections: &[Selection<Point>],
1003 snapshot: &EditorSnapshot,
1004 start_row: DisplayRow,
1005 end_row: DisplayRow,
1006 window: &mut Window,
1007 cx: &mut App,
1008 ) -> (
1009 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1010 BTreeMap<DisplayRow, LineHighlightSpec>,
1011 Option<DisplayPoint>,
1012 ) {
1013 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1014 let mut active_rows = BTreeMap::new();
1015 let mut newest_selection_head = None;
1016 self.editor.update(cx, |editor, cx| {
1017 if editor.show_local_selections {
1018 let mut layouts = Vec::new();
1019 let newest = editor.selections.newest(cx);
1020 for selection in local_selections.iter().cloned() {
1021 let is_empty = selection.start == selection.end;
1022 let is_newest = selection == newest;
1023
1024 let layout = SelectionLayout::new(
1025 selection,
1026 editor.selections.line_mode,
1027 editor.cursor_shape,
1028 &snapshot.display_snapshot,
1029 is_newest,
1030 editor.leader_peer_id.is_none(),
1031 None,
1032 );
1033 if is_newest {
1034 newest_selection_head = Some(layout.head);
1035 }
1036
1037 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1038 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1039 {
1040 let contains_non_empty_selection = active_rows
1041 .entry(DisplayRow(row))
1042 .or_insert_with(LineHighlightSpec::default);
1043 contains_non_empty_selection.selection |= !is_empty;
1044 }
1045 layouts.push(layout);
1046 }
1047
1048 let player = editor.current_user_player_color(cx);
1049 selections.push((player, layouts));
1050 }
1051
1052 if let Some(collaboration_hub) = &editor.collaboration_hub {
1053 // When following someone, render the local selections in their color.
1054 if let Some(leader_id) = editor.leader_peer_id {
1055 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1056 {
1057 if let Some(participant_index) = collaboration_hub
1058 .user_participant_indices(cx)
1059 .get(&collaborator.user_id)
1060 {
1061 if let Some((local_selection_style, _)) = selections.first_mut() {
1062 *local_selection_style = cx
1063 .theme()
1064 .players()
1065 .color_for_participant(participant_index.0);
1066 }
1067 }
1068 }
1069 }
1070
1071 let mut remote_selections = HashMap::default();
1072 for selection in snapshot.remote_selections_in_range(
1073 &(start_anchor..end_anchor),
1074 collaboration_hub.as_ref(),
1075 cx,
1076 ) {
1077 let selection_style =
1078 Self::get_participant_color(selection.participant_index, cx);
1079
1080 // Don't re-render the leader's selections, since the local selections
1081 // match theirs.
1082 if Some(selection.peer_id) == editor.leader_peer_id {
1083 continue;
1084 }
1085 let key = HoveredCursor {
1086 replica_id: selection.replica_id,
1087 selection_id: selection.selection.id,
1088 };
1089
1090 let is_shown =
1091 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1092
1093 remote_selections
1094 .entry(selection.replica_id)
1095 .or_insert((selection_style, Vec::new()))
1096 .1
1097 .push(SelectionLayout::new(
1098 selection.selection,
1099 selection.line_mode,
1100 selection.cursor_shape,
1101 &snapshot.display_snapshot,
1102 false,
1103 false,
1104 if is_shown { selection.user_name } else { None },
1105 ));
1106 }
1107
1108 selections.extend(remote_selections.into_values());
1109 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1110 let layouts = snapshot
1111 .buffer_snapshot
1112 .selections_in_range(&(start_anchor..end_anchor), true)
1113 .map(move |(_, line_mode, cursor_shape, selection)| {
1114 SelectionLayout::new(
1115 selection,
1116 line_mode,
1117 cursor_shape,
1118 &snapshot.display_snapshot,
1119 false,
1120 false,
1121 None,
1122 )
1123 })
1124 .collect::<Vec<_>>();
1125 let player = editor.current_user_player_color(cx);
1126 selections.push((player, layouts));
1127 }
1128 });
1129 (selections, active_rows, newest_selection_head)
1130 }
1131
1132 fn collect_cursors(
1133 &self,
1134 snapshot: &EditorSnapshot,
1135 cx: &mut App,
1136 ) -> Vec<(DisplayPoint, Hsla)> {
1137 let editor = self.editor.read(cx);
1138 let mut cursors = Vec::new();
1139 let mut skip_local = false;
1140 let mut add_cursor = |anchor: Anchor, color| {
1141 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1142 };
1143 // Remote cursors
1144 if let Some(collaboration_hub) = &editor.collaboration_hub {
1145 for remote_selection in snapshot.remote_selections_in_range(
1146 &(Anchor::min()..Anchor::max()),
1147 collaboration_hub.deref(),
1148 cx,
1149 ) {
1150 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1151 add_cursor(remote_selection.selection.head(), color.cursor);
1152 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1153 skip_local = true;
1154 }
1155 }
1156 }
1157 // Local cursors
1158 if !skip_local {
1159 let color = cx.theme().players().local().cursor;
1160 editor.selections.disjoint.iter().for_each(|selection| {
1161 add_cursor(selection.head(), color);
1162 });
1163 if let Some(ref selection) = editor.selections.pending_anchor() {
1164 add_cursor(selection.head(), color);
1165 }
1166 }
1167 cursors
1168 }
1169
1170 fn layout_visible_cursors(
1171 &self,
1172 snapshot: &EditorSnapshot,
1173 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1174 block_start_rows: &HashSet<DisplayRow>,
1175 visible_display_row_range: Range<DisplayRow>,
1176 line_layouts: &[LineWithInvisibles],
1177 text_hitbox: &Hitbox,
1178 content_origin: gpui::Point<Pixels>,
1179 scroll_position: gpui::Point<f32>,
1180 scroll_pixel_position: gpui::Point<Pixels>,
1181 line_height: Pixels,
1182 em_width: Pixels,
1183 em_advance: Pixels,
1184 autoscroll_containing_element: bool,
1185 window: &mut Window,
1186 cx: &mut App,
1187 ) -> Vec<CursorLayout> {
1188 let mut autoscroll_bounds = None;
1189 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1190 let mut cursors = Vec::new();
1191
1192 let show_local_cursors = editor.show_local_cursors(window, cx);
1193
1194 for (player_color, selections) in selections {
1195 for selection in selections {
1196 let cursor_position = selection.head;
1197
1198 let in_range = visible_display_row_range.contains(&cursor_position.row());
1199 if (selection.is_local && !show_local_cursors)
1200 || !in_range
1201 || block_start_rows.contains(&cursor_position.row())
1202 {
1203 continue;
1204 }
1205
1206 let cursor_row_layout = &line_layouts
1207 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1208 let cursor_column = cursor_position.column() as usize;
1209
1210 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1211 let mut block_width =
1212 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1213 if block_width == Pixels::ZERO {
1214 block_width = em_advance;
1215 }
1216 let block_text = if let CursorShape::Block = selection.cursor_shape {
1217 snapshot
1218 .grapheme_at(cursor_position)
1219 .or_else(|| {
1220 if cursor_column == 0 {
1221 snapshot.placeholder_text().and_then(|s| {
1222 s.graphemes(true).next().map(|s| s.to_string().into())
1223 })
1224 } else {
1225 None
1226 }
1227 })
1228 .and_then(|text| {
1229 let len = text.len();
1230
1231 let font = cursor_row_layout
1232 .font_id_for_index(cursor_column)
1233 .and_then(|cursor_font_id| {
1234 window.text_system().get_font_for_id(cursor_font_id)
1235 })
1236 .unwrap_or(self.style.text.font());
1237
1238 // Invert the text color for the block cursor. Ensure that the text
1239 // color is opaque enough to be visible against the background color.
1240 //
1241 // 0.75 is an arbitrary threshold to determine if the background color is
1242 // opaque enough to use as a text color.
1243 //
1244 // TODO: In the future we should ensure themes have a `text_inverse` color.
1245 let color = if cx.theme().colors().editor_background.a < 0.75 {
1246 match cx.theme().appearance {
1247 Appearance::Dark => Hsla::black(),
1248 Appearance::Light => Hsla::white(),
1249 }
1250 } else {
1251 cx.theme().colors().editor_background
1252 };
1253
1254 window
1255 .text_system()
1256 .shape_line(
1257 text,
1258 cursor_row_layout.font_size,
1259 &[TextRun {
1260 len,
1261 font,
1262 color,
1263 background_color: None,
1264 strikethrough: None,
1265 underline: None,
1266 }],
1267 )
1268 .log_err()
1269 })
1270 } else {
1271 None
1272 };
1273
1274 let x = cursor_character_x - scroll_pixel_position.x;
1275 let y = (cursor_position.row().as_f32()
1276 - scroll_pixel_position.y / line_height)
1277 * line_height;
1278 if selection.is_newest {
1279 editor.pixel_position_of_newest_cursor = Some(point(
1280 text_hitbox.origin.x + x + block_width / 2.,
1281 text_hitbox.origin.y + y + line_height / 2.,
1282 ));
1283
1284 if autoscroll_containing_element {
1285 let top = text_hitbox.origin.y
1286 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1287 * line_height;
1288 let left = text_hitbox.origin.x
1289 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1290 .max(0.)
1291 * em_width;
1292
1293 let bottom = text_hitbox.origin.y
1294 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1295 * line_height;
1296 let right = text_hitbox.origin.x
1297 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1298 * em_width;
1299
1300 autoscroll_bounds =
1301 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1302 }
1303 }
1304
1305 let mut cursor = CursorLayout {
1306 color: player_color.cursor,
1307 block_width,
1308 origin: point(x, y),
1309 line_height,
1310 shape: selection.cursor_shape,
1311 block_text,
1312 cursor_name: None,
1313 };
1314 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1315 string: name,
1316 color: self.style.background,
1317 is_top_row: cursor_position.row().0 == 0,
1318 });
1319 cursor.layout(content_origin, cursor_name, window, cx);
1320 cursors.push(cursor);
1321 }
1322 }
1323
1324 cursors
1325 });
1326
1327 if let Some(bounds) = autoscroll_bounds {
1328 window.request_autoscroll(bounds);
1329 }
1330
1331 cursor_layouts
1332 }
1333
1334 fn layout_scrollbars(
1335 &self,
1336 snapshot: &EditorSnapshot,
1337 scrollbar_layout_information: ScrollbarLayoutInformation,
1338 content_offset: gpui::Point<Pixels>,
1339 scroll_position: gpui::Point<f32>,
1340 non_visible_cursors: bool,
1341 window: &mut Window,
1342 cx: &mut App,
1343 ) -> Option<EditorScrollbars> {
1344 if snapshot.mode != EditorMode::Full {
1345 return None;
1346 }
1347
1348 // If a drag took place after we started dragging the scrollbar,
1349 // cancel the scrollbar drag.
1350 if cx.has_active_drag() {
1351 self.editor.update(cx, |editor, cx| {
1352 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1353 });
1354 }
1355
1356 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1357 let show_scrollbars = self.editor.read(cx).show_scrollbars
1358 && match scrollbar_settings.show {
1359 ShowScrollbar::Auto => {
1360 let editor = self.editor.read(cx);
1361 let is_singleton = editor.is_singleton(cx);
1362 // Git
1363 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1364 ||
1365 // Buffer Search Results
1366 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1367 ||
1368 // Selected Text Occurrences
1369 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1370 ||
1371 // Selected Symbol Occurrences
1372 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1373 ||
1374 // Diagnostics
1375 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1376 ||
1377 // Cursors out of sight
1378 non_visible_cursors
1379 ||
1380 // Scrollmanager
1381 editor.scroll_manager.scrollbars_visible()
1382 }
1383 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1384 ShowScrollbar::Always => true,
1385 ShowScrollbar::Never => return None,
1386 };
1387
1388 Some(EditorScrollbars::from_scrollbar_axes(
1389 scrollbar_settings.axes,
1390 &scrollbar_layout_information,
1391 content_offset,
1392 scroll_position,
1393 self.style.scrollbar_width,
1394 show_scrollbars,
1395 window,
1396 ))
1397 }
1398
1399 fn prepaint_crease_toggles(
1400 &self,
1401 crease_toggles: &mut [Option<AnyElement>],
1402 line_height: Pixels,
1403 gutter_dimensions: &GutterDimensions,
1404 gutter_settings: crate::editor_settings::Gutter,
1405 scroll_pixel_position: gpui::Point<Pixels>,
1406 gutter_hitbox: &Hitbox,
1407 window: &mut Window,
1408 cx: &mut App,
1409 ) {
1410 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1411 if let Some(crease_toggle) = crease_toggle {
1412 debug_assert!(gutter_settings.folds);
1413 let available_space = size(
1414 AvailableSpace::MinContent,
1415 AvailableSpace::Definite(line_height * 0.55),
1416 );
1417 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1418
1419 let position = point(
1420 gutter_dimensions.width - gutter_dimensions.right_padding,
1421 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1422 );
1423 let centering_offset = point(
1424 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1425 (line_height - crease_toggle_size.height) / 2.,
1426 );
1427 let origin = gutter_hitbox.origin + position + centering_offset;
1428 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1429 }
1430 }
1431 }
1432
1433 fn prepaint_expand_toggles(
1434 &self,
1435 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1436 window: &mut Window,
1437 cx: &mut App,
1438 ) {
1439 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1440 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1441 expand_toggle.layout_as_root(available_space, window, cx);
1442 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1443 }
1444 }
1445
1446 fn prepaint_crease_trailers(
1447 &self,
1448 trailers: Vec<Option<AnyElement>>,
1449 lines: &[LineWithInvisibles],
1450 line_height: Pixels,
1451 content_origin: gpui::Point<Pixels>,
1452 scroll_pixel_position: gpui::Point<Pixels>,
1453 em_width: Pixels,
1454 window: &mut Window,
1455 cx: &mut App,
1456 ) -> Vec<Option<CreaseTrailerLayout>> {
1457 trailers
1458 .into_iter()
1459 .enumerate()
1460 .map(|(ix, element)| {
1461 let mut element = element?;
1462 let available_space = size(
1463 AvailableSpace::MinContent,
1464 AvailableSpace::Definite(line_height),
1465 );
1466 let size = element.layout_as_root(available_space, window, cx);
1467
1468 let line = &lines[ix];
1469 let padding = if line.width == Pixels::ZERO {
1470 Pixels::ZERO
1471 } else {
1472 4. * em_width
1473 };
1474 let position = point(
1475 scroll_pixel_position.x + line.width + padding,
1476 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1477 );
1478 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1479 let origin = content_origin + position + centering_offset;
1480 element.prepaint_as_root(origin, available_space, window, cx);
1481 Some(CreaseTrailerLayout {
1482 element,
1483 bounds: Bounds::new(origin, size),
1484 })
1485 })
1486 .collect()
1487 }
1488
1489 // Folds contained in a hunk are ignored apart from shrinking visual size
1490 // If a fold contains any hunks then that fold line is marked as modified
1491 fn layout_gutter_diff_hunks(
1492 &self,
1493 line_height: Pixels,
1494 gutter_hitbox: &Hitbox,
1495 display_rows: Range<DisplayRow>,
1496 snapshot: &EditorSnapshot,
1497 window: &mut Window,
1498 cx: &mut App,
1499 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1500 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1501 let mut display_hunks = snapshot
1502 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1503 .map(|hunk| (hunk, None))
1504 .collect::<Vec<_>>();
1505 let git_gutter_setting = ProjectSettings::get_global(cx)
1506 .git
1507 .git_gutter
1508 .unwrap_or_default();
1509 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1510 for (hunk, hitbox) in &mut display_hunks {
1511 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1512 let hunk_bounds =
1513 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1514 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1515 }
1516 }
1517 }
1518
1519 display_hunks
1520 }
1521
1522 fn layout_inline_diagnostics(
1523 &self,
1524 line_layouts: &[LineWithInvisibles],
1525 crease_trailers: &[Option<CreaseTrailerLayout>],
1526 content_origin: gpui::Point<Pixels>,
1527 scroll_pixel_position: gpui::Point<Pixels>,
1528 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1529 start_row: DisplayRow,
1530 end_row: DisplayRow,
1531 line_height: Pixels,
1532 em_width: Pixels,
1533 style: &EditorStyle,
1534 window: &mut Window,
1535 cx: &mut App,
1536 ) -> HashMap<DisplayRow, AnyElement> {
1537 let max_severity = ProjectSettings::get_global(cx)
1538 .diagnostics
1539 .inline
1540 .max_severity
1541 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1542 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1543 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1544 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1545 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1546 });
1547
1548 let active_diagnostics_group = self
1549 .editor
1550 .read(cx)
1551 .active_diagnostics
1552 .as_ref()
1553 .map(|active_diagnostics| active_diagnostics.group_id);
1554
1555 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1556 let snapshot = editor.snapshot(window, cx);
1557 editor
1558 .inline_diagnostics
1559 .iter()
1560 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1561 .filter(|(_, diagnostic)| match active_diagnostics_group {
1562 Some(active_diagnostics_group) => {
1563 // Active diagnostics are all shown in the editor already, no need to display them inline
1564 diagnostic.group_id != active_diagnostics_group
1565 }
1566 None => true,
1567 })
1568 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1569 .skip_while(|(point, _)| point.row() < start_row)
1570 .take_while(|(point, _)| point.row() < end_row)
1571 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1572 acc.entry(point.row())
1573 .or_insert_with(Vec::new)
1574 .push(diagnostic);
1575 acc
1576 })
1577 });
1578
1579 if diagnostics_by_rows.is_empty() {
1580 return HashMap::default();
1581 }
1582
1583 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1584 &DiagnosticSeverity::ERROR => Color::Error,
1585 &DiagnosticSeverity::WARNING => Color::Warning,
1586 &DiagnosticSeverity::INFORMATION => Color::Info,
1587 &DiagnosticSeverity::HINT => Color::Hint,
1588 _ => Color::Error,
1589 };
1590
1591 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1592 let min_x = ProjectSettings::get_global(cx)
1593 .diagnostics
1594 .inline
1595 .min_column as f32
1596 * em_width;
1597
1598 let mut elements = HashMap::default();
1599 for (row, mut diagnostics) in diagnostics_by_rows {
1600 diagnostics.sort_by_key(|diagnostic| {
1601 (
1602 diagnostic.severity,
1603 std::cmp::Reverse(diagnostic.is_primary),
1604 diagnostic.start.row,
1605 diagnostic.start.column,
1606 )
1607 });
1608
1609 let Some(diagnostic_to_render) = diagnostics
1610 .iter()
1611 .find(|diagnostic| diagnostic.is_primary)
1612 .or_else(|| diagnostics.first())
1613 else {
1614 continue;
1615 };
1616
1617 let pos_y = content_origin.y
1618 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1619
1620 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1621 let pos_x = {
1622 let crease_trailer_layout = &crease_trailers[window_ix];
1623 let line_layout = &line_layouts[window_ix];
1624
1625 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1626 crease_trailer.bounds.right()
1627 } else {
1628 content_origin.x - scroll_pixel_position.x + line_layout.width
1629 };
1630
1631 let padded_line = line_end + padding;
1632 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1633
1634 cmp::max(padded_line, min_start)
1635 };
1636
1637 let behind_inline_completion_popover = inline_completion_popover_origin
1638 .as_ref()
1639 .map_or(false, |inline_completion_popover_origin| {
1640 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1641 });
1642 let opacity = if behind_inline_completion_popover {
1643 0.5
1644 } else {
1645 1.0
1646 };
1647
1648 let mut element = h_flex()
1649 .id(("diagnostic", row.0))
1650 .h(line_height)
1651 .w_full()
1652 .px_1()
1653 .rounded_xs()
1654 .opacity(opacity)
1655 .bg(severity_to_color(&diagnostic_to_render.severity)
1656 .color(cx)
1657 .opacity(0.05))
1658 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1659 .text_sm()
1660 .font_family(style.text.font().family)
1661 .child(diagnostic_to_render.message.clone())
1662 .into_any();
1663
1664 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1665
1666 elements.insert(row, element);
1667 }
1668
1669 elements
1670 }
1671
1672 fn layout_inline_blame(
1673 &self,
1674 display_row: DisplayRow,
1675 row_info: &RowInfo,
1676 line_layout: &LineWithInvisibles,
1677 crease_trailer: Option<&CreaseTrailerLayout>,
1678 em_width: Pixels,
1679 content_origin: gpui::Point<Pixels>,
1680 scroll_pixel_position: gpui::Point<Pixels>,
1681 line_height: Pixels,
1682 window: &mut Window,
1683 cx: &mut App,
1684 ) -> Option<AnyElement> {
1685 if !self
1686 .editor
1687 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1688 {
1689 return None;
1690 }
1691
1692 let editor = self.editor.read(cx);
1693 let blame = editor.blame.clone()?;
1694 let padding = {
1695 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1696 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1697
1698 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1699
1700 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1701 match &inline_completion.completion {
1702 InlineCompletion::Edit {
1703 display_mode: EditDisplayMode::TabAccept,
1704 ..
1705 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1706 _ => {}
1707 }
1708 }
1709
1710 padding * em_width
1711 };
1712
1713 let blame_entry = blame
1714 .update(cx, |blame, cx| {
1715 blame.blame_for_rows(&[*row_info], cx).next()
1716 })
1717 .flatten()?;
1718
1719 let mut element =
1720 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1721
1722 let start_y = content_origin.y
1723 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1724
1725 let start_x = {
1726 let line_end = if let Some(crease_trailer) = crease_trailer {
1727 crease_trailer.bounds.right()
1728 } else {
1729 content_origin.x - scroll_pixel_position.x + line_layout.width
1730 };
1731
1732 let padded_line_end = line_end + padding;
1733
1734 let min_column_in_pixels = ProjectSettings::get_global(cx)
1735 .git
1736 .inline_blame
1737 .and_then(|settings| settings.min_column)
1738 .map(|col| self.column_pixels(col as usize, window, cx))
1739 .unwrap_or(px(0.));
1740 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1741
1742 cmp::max(padded_line_end, min_start)
1743 };
1744
1745 let absolute_offset = point(start_x, start_y);
1746 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1747
1748 Some(element)
1749 }
1750
1751 fn layout_blame_entries(
1752 &self,
1753 buffer_rows: &[RowInfo],
1754 em_width: Pixels,
1755 scroll_position: gpui::Point<f32>,
1756 line_height: Pixels,
1757 gutter_hitbox: &Hitbox,
1758 max_width: Option<Pixels>,
1759 window: &mut Window,
1760 cx: &mut App,
1761 ) -> Option<Vec<AnyElement>> {
1762 if !self
1763 .editor
1764 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1765 {
1766 return None;
1767 }
1768
1769 let blame = self.editor.read(cx).blame.clone()?;
1770 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1771 blame.blame_for_rows(buffer_rows, cx).collect()
1772 });
1773
1774 let width = if let Some(max_width) = max_width {
1775 AvailableSpace::Definite(max_width)
1776 } else {
1777 AvailableSpace::MaxContent
1778 };
1779 let scroll_top = scroll_position.y * line_height;
1780 let start_x = em_width;
1781
1782 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1783
1784 let shaped_lines = blamed_rows
1785 .into_iter()
1786 .enumerate()
1787 .flat_map(|(ix, blame_entry)| {
1788 if let Some(blame_entry) = blame_entry {
1789 let mut element = render_blame_entry(
1790 ix,
1791 &blame,
1792 blame_entry,
1793 &self.style,
1794 &mut last_used_color,
1795 self.editor.clone(),
1796 cx,
1797 );
1798
1799 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1800 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1801
1802 element.prepaint_as_root(
1803 absolute_offset,
1804 size(width, AvailableSpace::MinContent),
1805 window,
1806 cx,
1807 );
1808
1809 Some(element)
1810 } else {
1811 None
1812 }
1813 })
1814 .collect();
1815
1816 Some(shaped_lines)
1817 }
1818
1819 fn layout_indent_guides(
1820 &self,
1821 content_origin: gpui::Point<Pixels>,
1822 text_origin: gpui::Point<Pixels>,
1823 visible_buffer_range: Range<MultiBufferRow>,
1824 scroll_pixel_position: gpui::Point<Pixels>,
1825 line_height: Pixels,
1826 snapshot: &DisplaySnapshot,
1827 window: &mut Window,
1828 cx: &mut App,
1829 ) -> Option<Vec<IndentGuideLayout>> {
1830 let indent_guides = self.editor.update(cx, |editor, cx| {
1831 editor.indent_guides(visible_buffer_range, snapshot, cx)
1832 })?;
1833
1834 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1835 editor
1836 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1837 .unwrap_or_default()
1838 });
1839
1840 Some(
1841 indent_guides
1842 .into_iter()
1843 .enumerate()
1844 .filter_map(|(i, indent_guide)| {
1845 let single_indent_width =
1846 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1847 let total_width = single_indent_width * indent_guide.depth as f32;
1848 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1849 if start_x >= text_origin.x {
1850 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1851 indent_guide.start_row..indent_guide.end_row,
1852 line_height,
1853 snapshot,
1854 );
1855
1856 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1857
1858 Some(IndentGuideLayout {
1859 origin: point(start_x, start_y),
1860 length,
1861 single_indent_width,
1862 depth: indent_guide.depth,
1863 active: active_indent_guide_indices.contains(&i),
1864 settings: indent_guide.settings,
1865 })
1866 } else {
1867 None
1868 }
1869 })
1870 .collect(),
1871 )
1872 }
1873
1874 fn calculate_indent_guide_bounds(
1875 row_range: Range<MultiBufferRow>,
1876 line_height: Pixels,
1877 snapshot: &DisplaySnapshot,
1878 ) -> (gpui::Pixels, gpui::Pixels) {
1879 let start_point = Point::new(row_range.start.0, 0);
1880 let end_point = Point::new(row_range.end.0, 0);
1881
1882 let row_range = start_point.to_display_point(snapshot).row()
1883 ..end_point.to_display_point(snapshot).row();
1884
1885 let mut prev_line = start_point;
1886 prev_line.row = prev_line.row.saturating_sub(1);
1887 let prev_line = prev_line.to_display_point(snapshot).row();
1888
1889 let mut cons_line = end_point;
1890 cons_line.row += 1;
1891 let cons_line = cons_line.to_display_point(snapshot).row();
1892
1893 let mut offset_y = row_range.start.0 as f32 * line_height;
1894 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1895
1896 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1897 if row_range.end == cons_line {
1898 length += line_height;
1899 }
1900
1901 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1902 // we want to extend the indent guide to the start of the block.
1903 let mut block_height = 0;
1904 let mut block_offset = 0;
1905 let mut found_excerpt_header = false;
1906 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1907 if matches!(block, Block::ExcerptBoundary { .. }) {
1908 found_excerpt_header = true;
1909 break;
1910 }
1911 block_offset += block.height();
1912 block_height += block.height();
1913 }
1914 if !found_excerpt_header {
1915 offset_y -= block_offset as f32 * line_height;
1916 length += block_height as f32 * line_height;
1917 }
1918
1919 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1920 // we want to ensure that the indent guide stops before the excerpt header.
1921 let mut block_height = 0;
1922 let mut found_excerpt_header = false;
1923 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1924 if matches!(block, Block::ExcerptBoundary { .. }) {
1925 found_excerpt_header = true;
1926 }
1927 block_height += block.height();
1928 }
1929 if found_excerpt_header {
1930 length -= block_height as f32 * line_height;
1931 }
1932
1933 (offset_y, length)
1934 }
1935
1936 fn layout_breakpoints(
1937 &self,
1938 line_height: Pixels,
1939 range: Range<DisplayRow>,
1940 scroll_pixel_position: gpui::Point<Pixels>,
1941 gutter_dimensions: &GutterDimensions,
1942 gutter_hitbox: &Hitbox,
1943 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
1944 snapshot: &EditorSnapshot,
1945 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
1946 row_infos: &[RowInfo],
1947 window: &mut Window,
1948 cx: &mut App,
1949 ) -> Vec<AnyElement> {
1950 self.editor.update(cx, |editor, cx| {
1951 breakpoints
1952 .into_iter()
1953 .filter_map(|(display_row, (text_anchor, bp))| {
1954 if row_infos
1955 .get((display_row.0.saturating_sub(range.start.0)) as usize)
1956 .is_some_and(|row_info| {
1957 row_info.expand_info.is_some()
1958 || row_info
1959 .diff_status
1960 .is_some_and(|status| status.is_deleted())
1961 })
1962 {
1963 return None;
1964 }
1965
1966 if range.start > display_row || range.end < display_row {
1967 return None;
1968 }
1969
1970 let row =
1971 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
1972 if snapshot.is_line_folded(row) {
1973 return None;
1974 }
1975
1976 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
1977
1978 let button = prepaint_gutter_button(
1979 button,
1980 display_row,
1981 line_height,
1982 gutter_dimensions,
1983 scroll_pixel_position,
1984 gutter_hitbox,
1985 display_hunks,
1986 window,
1987 cx,
1988 );
1989 Some(button)
1990 })
1991 .collect_vec()
1992 })
1993 }
1994
1995 #[allow(clippy::too_many_arguments)]
1996 fn layout_run_indicators(
1997 &self,
1998 line_height: Pixels,
1999 range: Range<DisplayRow>,
2000 row_infos: &[RowInfo],
2001 scroll_pixel_position: gpui::Point<Pixels>,
2002 gutter_dimensions: &GutterDimensions,
2003 gutter_hitbox: &Hitbox,
2004 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2005 snapshot: &EditorSnapshot,
2006 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2007 window: &mut Window,
2008 cx: &mut App,
2009 ) -> Vec<AnyElement> {
2010 self.editor.update(cx, |editor, cx| {
2011 let active_task_indicator_row =
2012 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2013 deployed_from_indicator,
2014 actions,
2015 ..
2016 })) = editor.context_menu.borrow().as_ref()
2017 {
2018 actions
2019 .tasks
2020 .as_ref()
2021 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2022 .or(*deployed_from_indicator)
2023 } else {
2024 None
2025 };
2026
2027 let offset_range_start =
2028 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2029
2030 let offset_range_end =
2031 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2032
2033 editor
2034 .tasks
2035 .iter()
2036 .filter_map(|(_, tasks)| {
2037 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2038 if multibuffer_point < offset_range_start
2039 || multibuffer_point > offset_range_end
2040 {
2041 return None;
2042 }
2043 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2044 let buffer_folded = snapshot
2045 .buffer_snapshot
2046 .buffer_line_for_row(multibuffer_row)
2047 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2048 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2049 .unwrap_or(false);
2050 if buffer_folded {
2051 return None;
2052 }
2053
2054 if snapshot.is_line_folded(multibuffer_row) {
2055 // Skip folded indicators, unless it's the starting line of a fold.
2056 if multibuffer_row
2057 .0
2058 .checked_sub(1)
2059 .map_or(false, |previous_row| {
2060 snapshot.is_line_folded(MultiBufferRow(previous_row))
2061 })
2062 {
2063 return None;
2064 }
2065 }
2066
2067 let display_row = multibuffer_point.to_display_point(snapshot).row();
2068 if row_infos
2069 .get((display_row - range.start).0 as usize)
2070 .is_some_and(|row_info| row_info.expand_info.is_some())
2071 {
2072 return None;
2073 }
2074
2075 let button = editor.render_run_indicator(
2076 &self.style,
2077 Some(display_row) == active_task_indicator_row,
2078 display_row,
2079 breakpoints.remove(&display_row),
2080 cx,
2081 );
2082
2083 let button = prepaint_gutter_button(
2084 button,
2085 display_row,
2086 line_height,
2087 gutter_dimensions,
2088 scroll_pixel_position,
2089 gutter_hitbox,
2090 display_hunks,
2091 window,
2092 cx,
2093 );
2094 Some(button)
2095 })
2096 .collect_vec()
2097 })
2098 }
2099
2100 fn layout_expand_toggles(
2101 &self,
2102 gutter_hitbox: &Hitbox,
2103 gutter_dimensions: GutterDimensions,
2104 em_width: Pixels,
2105 line_height: Pixels,
2106 scroll_position: gpui::Point<f32>,
2107 buffer_rows: &[RowInfo],
2108 window: &mut Window,
2109 cx: &mut App,
2110 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2111 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2112
2113 let scroll_top = scroll_position.y * line_height;
2114
2115 let max_line_number_length = self
2116 .editor
2117 .read(cx)
2118 .buffer()
2119 .read(cx)
2120 .snapshot(cx)
2121 .widest_line_number()
2122 .ilog10()
2123 + 1;
2124
2125 let elements = buffer_rows
2126 .into_iter()
2127 .enumerate()
2128 .map(|(ix, row_info)| {
2129 let ExpandInfo {
2130 excerpt_id,
2131 direction,
2132 } = row_info.expand_info?;
2133
2134 let icon_name = match direction {
2135 ExpandExcerptDirection::Up => IconName::ExpandUp,
2136 ExpandExcerptDirection::Down => IconName::ExpandDown,
2137 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2138 };
2139
2140 let git_gutter_width = Self::gutter_strip_width(line_height);
2141 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2142
2143 let editor = self.editor.clone();
2144 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2145 && row_info
2146 .buffer_row
2147 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2148 || gutter_dimensions.right_padding == px(0.);
2149
2150 let width = if is_wide {
2151 available_width - px(2.)
2152 } else {
2153 available_width + em_width - px(2.)
2154 };
2155
2156 let toggle = IconButton::new(("expand", ix), icon_name)
2157 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2158 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2159 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2160 .width(width.into())
2161 .on_click(move |_, window, cx| {
2162 editor.update(cx, |editor, cx| {
2163 editor.expand_excerpt(excerpt_id, direction, window, cx);
2164 });
2165 })
2166 .tooltip(Tooltip::for_action_title(
2167 "Expand Excerpt",
2168 &crate::actions::ExpandExcerpts::default(),
2169 ))
2170 .into_any_element();
2171
2172 let position = point(
2173 git_gutter_width + px(1.),
2174 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2175 );
2176 let origin = gutter_hitbox.origin + position;
2177
2178 Some((toggle, origin))
2179 })
2180 .collect();
2181
2182 elements
2183 }
2184
2185 fn layout_code_actions_indicator(
2186 &self,
2187 line_height: Pixels,
2188 newest_selection_head: DisplayPoint,
2189 scroll_pixel_position: gpui::Point<Pixels>,
2190 gutter_dimensions: &GutterDimensions,
2191 gutter_hitbox: &Hitbox,
2192 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2193 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2194 window: &mut Window,
2195 cx: &mut App,
2196 ) -> Option<AnyElement> {
2197 let mut active = false;
2198 let mut button = None;
2199 let row = newest_selection_head.row();
2200 self.editor.update(cx, |editor, cx| {
2201 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2202 deployed_from_indicator,
2203 ..
2204 })) = editor.context_menu.borrow().as_ref()
2205 {
2206 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2207 };
2208
2209 let breakpoint = breakpoint_points.get(&row);
2210 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2211 });
2212
2213 let button = button?;
2214 breakpoint_points.remove(&row);
2215
2216 let button = prepaint_gutter_button(
2217 button,
2218 row,
2219 line_height,
2220 gutter_dimensions,
2221 scroll_pixel_position,
2222 gutter_hitbox,
2223 display_hunks,
2224 window,
2225 cx,
2226 );
2227
2228 Some(button)
2229 }
2230
2231 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2232 if let Some(index) = participant_index {
2233 cx.theme().players().color_for_participant(index.0)
2234 } else {
2235 cx.theme().players().absent()
2236 }
2237 }
2238
2239 fn calculate_relative_line_numbers(
2240 &self,
2241 snapshot: &EditorSnapshot,
2242 rows: &Range<DisplayRow>,
2243 relative_to: Option<DisplayRow>,
2244 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2245 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2246 let Some(relative_to) = relative_to else {
2247 return relative_rows;
2248 };
2249
2250 let start = rows.start.min(relative_to);
2251 let end = rows.end.max(relative_to);
2252
2253 let buffer_rows = snapshot
2254 .row_infos(start)
2255 .take(1 + end.minus(start) as usize)
2256 .collect::<Vec<_>>();
2257
2258 let head_idx = relative_to.minus(start);
2259 let mut delta = 1;
2260 let mut i = head_idx + 1;
2261 while i < buffer_rows.len() as u32 {
2262 if buffer_rows[i as usize].buffer_row.is_some() {
2263 if rows.contains(&DisplayRow(i + start.0)) {
2264 relative_rows.insert(DisplayRow(i + start.0), delta);
2265 }
2266 delta += 1;
2267 }
2268 i += 1;
2269 }
2270 delta = 1;
2271 i = head_idx.min(buffer_rows.len() as u32 - 1);
2272 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2273 i -= 1;
2274 }
2275
2276 while i > 0 {
2277 i -= 1;
2278 if buffer_rows[i as usize].buffer_row.is_some() {
2279 if rows.contains(&DisplayRow(i + start.0)) {
2280 relative_rows.insert(DisplayRow(i + start.0), delta);
2281 }
2282 delta += 1;
2283 }
2284 }
2285
2286 relative_rows
2287 }
2288
2289 fn layout_line_numbers(
2290 &self,
2291 gutter_hitbox: Option<&Hitbox>,
2292 gutter_dimensions: GutterDimensions,
2293 line_height: Pixels,
2294 scroll_position: gpui::Point<f32>,
2295 rows: Range<DisplayRow>,
2296 buffer_rows: &[RowInfo],
2297 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2298 newest_selection_head: Option<DisplayPoint>,
2299 snapshot: &EditorSnapshot,
2300 window: &mut Window,
2301 cx: &mut App,
2302 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2303 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2304 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2305 });
2306 if !include_line_numbers {
2307 return Arc::default();
2308 }
2309
2310 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2311 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2312 let newest = editor.selections.newest::<Point>(cx);
2313 SelectionLayout::new(
2314 newest,
2315 editor.selections.line_mode,
2316 editor.cursor_shape,
2317 &snapshot.display_snapshot,
2318 true,
2319 true,
2320 None,
2321 )
2322 .head
2323 });
2324 let is_relative = editor.should_use_relative_line_numbers(cx);
2325 (newest_selection_head, is_relative)
2326 });
2327
2328 let relative_to = if is_relative {
2329 Some(newest_selection_head.row())
2330 } else {
2331 None
2332 };
2333 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2334 let mut line_number = String::new();
2335 let line_numbers = buffer_rows
2336 .into_iter()
2337 .enumerate()
2338 .flat_map(|(ix, row_info)| {
2339 let display_row = DisplayRow(rows.start.0 + ix as u32);
2340 line_number.clear();
2341 let non_relative_number = row_info.buffer_row? + 1;
2342 let number = relative_rows
2343 .get(&display_row)
2344 .unwrap_or(&non_relative_number);
2345 write!(&mut line_number, "{number}").unwrap();
2346 if row_info
2347 .diff_status
2348 .is_some_and(|status| status.is_deleted())
2349 {
2350 return None;
2351 }
2352
2353 let color = active_rows
2354 .get(&display_row)
2355 .and_then(|spec| {
2356 if spec.breakpoint {
2357 Some(cx.theme().colors().debugger_accent)
2358 } else if spec.selection {
2359 Some(cx.theme().colors().editor_active_line_number)
2360 } else {
2361 None
2362 }
2363 })
2364 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2365 let shaped_line = self
2366 .shape_line_number(SharedString::from(&line_number), color, window)
2367 .log_err()?;
2368 let scroll_top = scroll_position.y * line_height;
2369 let line_origin = gutter_hitbox.map(|hitbox| {
2370 hitbox.origin
2371 + point(
2372 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2373 ix as f32 * line_height - (scroll_top % line_height),
2374 )
2375 });
2376
2377 #[cfg(not(test))]
2378 let hitbox = line_origin.map(|line_origin| {
2379 window.insert_hitbox(
2380 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2381 false,
2382 )
2383 });
2384 #[cfg(test)]
2385 let hitbox = {
2386 let _ = line_origin;
2387 None
2388 };
2389
2390 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2391 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2392 let line_number = LineNumberLayout {
2393 shaped_line,
2394 hitbox,
2395 };
2396 Some((multi_buffer_row, line_number))
2397 })
2398 .collect();
2399 Arc::new(line_numbers)
2400 }
2401
2402 fn layout_crease_toggles(
2403 &self,
2404 rows: Range<DisplayRow>,
2405 row_infos: &[RowInfo],
2406 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2407 snapshot: &EditorSnapshot,
2408 window: &mut Window,
2409 cx: &mut App,
2410 ) -> Vec<Option<AnyElement>> {
2411 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2412 && snapshot.mode == EditorMode::Full
2413 && self.editor.read(cx).is_singleton(cx);
2414 if include_fold_statuses {
2415 row_infos
2416 .into_iter()
2417 .enumerate()
2418 .map(|(ix, info)| {
2419 if info.expand_info.is_some() {
2420 return None;
2421 }
2422 let row = info.multibuffer_row?;
2423 let display_row = DisplayRow(rows.start.0 + ix as u32);
2424 let active = active_rows.contains_key(&display_row);
2425
2426 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2427 })
2428 .collect()
2429 } else {
2430 Vec::new()
2431 }
2432 }
2433
2434 fn layout_crease_trailers(
2435 &self,
2436 buffer_rows: impl IntoIterator<Item = RowInfo>,
2437 snapshot: &EditorSnapshot,
2438 window: &mut Window,
2439 cx: &mut App,
2440 ) -> Vec<Option<AnyElement>> {
2441 buffer_rows
2442 .into_iter()
2443 .map(|row_info| {
2444 if row_info.expand_info.is_some() {
2445 return None;
2446 }
2447 if let Some(row) = row_info.multibuffer_row {
2448 snapshot.render_crease_trailer(row, window, cx)
2449 } else {
2450 None
2451 }
2452 })
2453 .collect()
2454 }
2455
2456 fn layout_lines(
2457 rows: Range<DisplayRow>,
2458 snapshot: &EditorSnapshot,
2459 style: &EditorStyle,
2460 editor_width: Pixels,
2461 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2462 window: &mut Window,
2463 cx: &mut App,
2464 ) -> Vec<LineWithInvisibles> {
2465 if rows.start >= rows.end {
2466 return Vec::new();
2467 }
2468
2469 // Show the placeholder when the editor is empty
2470 if snapshot.is_empty() {
2471 let font_size = style.text.font_size.to_pixels(window.rem_size());
2472 let placeholder_color = cx.theme().colors().text_placeholder;
2473 let placeholder_text = snapshot.placeholder_text();
2474
2475 let placeholder_lines = placeholder_text
2476 .as_ref()
2477 .map_or("", AsRef::as_ref)
2478 .split('\n')
2479 .skip(rows.start.0 as usize)
2480 .chain(iter::repeat(""))
2481 .take(rows.len());
2482 placeholder_lines
2483 .filter_map(move |line| {
2484 let run = TextRun {
2485 len: line.len(),
2486 font: style.text.font(),
2487 color: placeholder_color,
2488 background_color: None,
2489 underline: Default::default(),
2490 strikethrough: None,
2491 };
2492 window
2493 .text_system()
2494 .shape_line(line.to_string().into(), font_size, &[run])
2495 .log_err()
2496 })
2497 .map(|line| LineWithInvisibles {
2498 width: line.width,
2499 len: line.len,
2500 fragments: smallvec![LineFragment::Text(line)],
2501 invisibles: Vec::new(),
2502 font_size,
2503 })
2504 .collect()
2505 } else {
2506 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2507 LineWithInvisibles::from_chunks(
2508 chunks,
2509 &style,
2510 MAX_LINE_LEN,
2511 rows.len(),
2512 snapshot.mode,
2513 editor_width,
2514 is_row_soft_wrapped,
2515 window,
2516 cx,
2517 )
2518 }
2519 }
2520
2521 fn prepaint_lines(
2522 &self,
2523 start_row: DisplayRow,
2524 line_layouts: &mut [LineWithInvisibles],
2525 line_height: Pixels,
2526 scroll_pixel_position: gpui::Point<Pixels>,
2527 content_origin: gpui::Point<Pixels>,
2528 window: &mut Window,
2529 cx: &mut App,
2530 ) -> SmallVec<[AnyElement; 1]> {
2531 let mut line_elements = SmallVec::new();
2532 for (ix, line) in line_layouts.iter_mut().enumerate() {
2533 let row = start_row + DisplayRow(ix as u32);
2534 line.prepaint(
2535 line_height,
2536 scroll_pixel_position,
2537 row,
2538 content_origin,
2539 &mut line_elements,
2540 window,
2541 cx,
2542 );
2543 }
2544 line_elements
2545 }
2546
2547 fn render_block(
2548 &self,
2549 block: &Block,
2550 available_width: AvailableSpace,
2551 block_id: BlockId,
2552 block_row_start: DisplayRow,
2553 snapshot: &EditorSnapshot,
2554 text_x: Pixels,
2555 rows: &Range<DisplayRow>,
2556 line_layouts: &[LineWithInvisibles],
2557 gutter_dimensions: &GutterDimensions,
2558 line_height: Pixels,
2559 em_width: Pixels,
2560 text_hitbox: &Hitbox,
2561 editor_width: Pixels,
2562 scroll_width: &mut Pixels,
2563 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2564 selections: &[Selection<Point>],
2565 selected_buffer_ids: &Vec<BufferId>,
2566 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2567 sticky_header_excerpt_id: Option<ExcerptId>,
2568 window: &mut Window,
2569 cx: &mut App,
2570 ) -> (AnyElement, Size<Pixels>) {
2571 let mut element = match block {
2572 Block::Custom(block) => {
2573 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2574 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2575 let align_to = block_start.to_display_point(snapshot);
2576 let anchor_x = text_x
2577 + if rows.contains(&align_to.row()) {
2578 line_layouts[align_to.row().minus(rows.start) as usize]
2579 .x_for_index(align_to.column() as usize)
2580 } else {
2581 layout_line(
2582 align_to.row(),
2583 snapshot,
2584 &self.style,
2585 editor_width,
2586 is_row_soft_wrapped,
2587 window,
2588 cx,
2589 )
2590 .x_for_index(align_to.column() as usize)
2591 };
2592
2593 let selected = selections
2594 .binary_search_by(|selection| {
2595 if selection.end <= block_start {
2596 Ordering::Less
2597 } else if selection.start >= block_end {
2598 Ordering::Greater
2599 } else {
2600 Ordering::Equal
2601 }
2602 })
2603 .is_ok();
2604
2605 div()
2606 .size_full()
2607 .child(block.render(&mut BlockContext {
2608 window,
2609 app: cx,
2610 anchor_x,
2611 gutter_dimensions,
2612 line_height,
2613 em_width,
2614 block_id,
2615 selected,
2616 max_width: text_hitbox.size.width.max(*scroll_width),
2617 editor_style: &self.style,
2618 }))
2619 .into_any()
2620 }
2621
2622 Block::FoldedBuffer {
2623 first_excerpt,
2624 height,
2625 ..
2626 } => {
2627 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2628 let result = v_flex().id(block_id).w_full();
2629
2630 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2631 result
2632 .child(self.render_buffer_header(
2633 first_excerpt,
2634 true,
2635 selected,
2636 false,
2637 jump_data,
2638 window,
2639 cx,
2640 ))
2641 .into_any_element()
2642 }
2643
2644 Block::ExcerptBoundary {
2645 excerpt,
2646 height,
2647 starts_new_buffer,
2648 ..
2649 } => {
2650 let color = cx.theme().colors().clone();
2651 let mut result = v_flex().id(block_id).w_full();
2652
2653 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2654
2655 if *starts_new_buffer {
2656 if sticky_header_excerpt_id != Some(excerpt.id) {
2657 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2658
2659 result = result.child(self.render_buffer_header(
2660 excerpt, false, selected, false, jump_data, window, cx,
2661 ));
2662 } else {
2663 result =
2664 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2665 }
2666 } else {
2667 result = result.child(
2668 h_flex().relative().child(
2669 div()
2670 .top(line_height / 2.)
2671 .absolute()
2672 .w_full()
2673 .h_px()
2674 .bg(color.border_variant),
2675 ),
2676 );
2677 };
2678
2679 result.into_any()
2680 }
2681 };
2682
2683 // Discover the element's content height, then round up to the nearest multiple of line height.
2684 let preliminary_size = element.layout_as_root(
2685 size(available_width, AvailableSpace::MinContent),
2686 window,
2687 cx,
2688 );
2689 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2690 let final_size = if preliminary_size.height == quantized_height {
2691 preliminary_size
2692 } else {
2693 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2694 };
2695
2696 if let BlockId::Custom(custom_block_id) = block_id {
2697 if block.height() > 0 {
2698 let element_height_in_lines =
2699 ((final_size.height / line_height).ceil() as u32).max(1);
2700 if element_height_in_lines != block.height() {
2701 resized_blocks.insert(custom_block_id, element_height_in_lines);
2702 }
2703 }
2704 }
2705
2706 (element, final_size)
2707 }
2708
2709 fn render_buffer_header(
2710 &self,
2711 for_excerpt: &ExcerptInfo,
2712 is_folded: bool,
2713 is_selected: bool,
2714 is_sticky: bool,
2715 jump_data: JumpData,
2716 window: &mut Window,
2717 cx: &mut App,
2718 ) -> Div {
2719 let editor = self.editor.read(cx);
2720 let file_status = editor
2721 .buffer
2722 .read(cx)
2723 .all_diff_hunks_expanded()
2724 .then(|| {
2725 editor
2726 .project
2727 .as_ref()?
2728 .read(cx)
2729 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2730 })
2731 .flatten();
2732
2733 let include_root = editor
2734 .project
2735 .as_ref()
2736 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2737 .unwrap_or_default();
2738 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2739 let filename = path
2740 .as_ref()
2741 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2742 let parent_path = path.as_ref().and_then(|path| {
2743 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2744 });
2745 let focus_handle = editor.focus_handle(cx);
2746 let colors = cx.theme().colors();
2747
2748 div()
2749 .p_1()
2750 .w_full()
2751 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2752 .child(
2753 h_flex()
2754 .size_full()
2755 .gap_2()
2756 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2757 .pl_0p5()
2758 .pr_5()
2759 .rounded_sm()
2760 .when(is_sticky, |el| el.shadow_md())
2761 .border_1()
2762 .map(|div| {
2763 let border_color = if is_selected
2764 && is_folded
2765 && focus_handle.contains_focused(window, cx)
2766 {
2767 colors.border_focused
2768 } else {
2769 colors.border
2770 };
2771 div.border_color(border_color)
2772 })
2773 .bg(colors.editor_subheader_background)
2774 .hover(|style| style.bg(colors.element_hover))
2775 .map(|header| {
2776 let editor = self.editor.clone();
2777 let buffer_id = for_excerpt.buffer_id;
2778 let toggle_chevron_icon =
2779 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2780 header.child(
2781 div()
2782 .hover(|style| style.bg(colors.element_selected))
2783 .rounded_xs()
2784 .child(
2785 ButtonLike::new("toggle-buffer-fold")
2786 .style(ui::ButtonStyle::Transparent)
2787 .height(px(28.).into())
2788 .width(px(28.).into())
2789 .children(toggle_chevron_icon)
2790 .tooltip({
2791 let focus_handle = focus_handle.clone();
2792 move |window, cx| {
2793 Tooltip::for_action_in(
2794 "Toggle Excerpt Fold",
2795 &ToggleFold,
2796 &focus_handle,
2797 window,
2798 cx,
2799 )
2800 }
2801 })
2802 .on_click(move |_, _, cx| {
2803 if is_folded {
2804 editor.update(cx, |editor, cx| {
2805 editor.unfold_buffer(buffer_id, cx);
2806 });
2807 } else {
2808 editor.update(cx, |editor, cx| {
2809 editor.fold_buffer(buffer_id, cx);
2810 });
2811 }
2812 }),
2813 ),
2814 )
2815 })
2816 .children(
2817 editor
2818 .addons
2819 .values()
2820 .filter_map(|addon| {
2821 addon.render_buffer_header_controls(for_excerpt, window, cx)
2822 })
2823 .take(1),
2824 )
2825 .child(
2826 h_flex()
2827 .cursor_pointer()
2828 .id("path header block")
2829 .size_full()
2830 .justify_between()
2831 .child(
2832 h_flex()
2833 .gap_2()
2834 .child(
2835 Label::new(
2836 filename
2837 .map(SharedString::from)
2838 .unwrap_or_else(|| "untitled".into()),
2839 )
2840 .single_line()
2841 .when_some(
2842 file_status,
2843 |el, status| {
2844 el.color(if status.is_conflicted() {
2845 Color::Conflict
2846 } else if status.is_modified() {
2847 Color::Modified
2848 } else if status.is_deleted() {
2849 Color::Disabled
2850 } else {
2851 Color::Created
2852 })
2853 .when(status.is_deleted(), |el| el.strikethrough())
2854 },
2855 ),
2856 )
2857 .when_some(parent_path, |then, path| {
2858 then.child(div().child(path).text_color(
2859 if file_status.is_some_and(FileStatus::is_deleted) {
2860 colors.text_disabled
2861 } else {
2862 colors.text_muted
2863 },
2864 ))
2865 }),
2866 )
2867 .when(is_selected, |el| {
2868 el.child(
2869 h_flex()
2870 .id("jump-to-file-button")
2871 .gap_2p5()
2872 .child(Label::new("Jump To File"))
2873 .children(
2874 KeyBinding::for_action_in(
2875 &OpenExcerpts,
2876 &focus_handle,
2877 window,
2878 cx,
2879 )
2880 .map(|binding| binding.into_any_element()),
2881 ),
2882 )
2883 })
2884 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2885 .on_click(window.listener_for(&self.editor, {
2886 move |editor, e: &ClickEvent, window, cx| {
2887 editor.open_excerpts_common(
2888 Some(jump_data.clone()),
2889 e.down.modifiers.secondary(),
2890 window,
2891 cx,
2892 );
2893 }
2894 })),
2895 ),
2896 )
2897 }
2898
2899 fn render_blocks(
2900 &self,
2901 rows: Range<DisplayRow>,
2902 snapshot: &EditorSnapshot,
2903 hitbox: &Hitbox,
2904 text_hitbox: &Hitbox,
2905 editor_width: Pixels,
2906 scroll_width: &mut Pixels,
2907 gutter_dimensions: &GutterDimensions,
2908 em_width: Pixels,
2909 text_x: Pixels,
2910 line_height: Pixels,
2911 line_layouts: &[LineWithInvisibles],
2912 selections: &[Selection<Point>],
2913 selected_buffer_ids: &Vec<BufferId>,
2914 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2915 sticky_header_excerpt_id: Option<ExcerptId>,
2916 window: &mut Window,
2917 cx: &mut App,
2918 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2919 let (fixed_blocks, non_fixed_blocks) = snapshot
2920 .blocks_in_range(rows.clone())
2921 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2922
2923 let mut focused_block = self
2924 .editor
2925 .update(cx, |editor, _| editor.take_focused_block());
2926 let mut fixed_block_max_width = Pixels::ZERO;
2927 let mut blocks = Vec::new();
2928 let mut resized_blocks = HashMap::default();
2929
2930 for (row, block) in fixed_blocks {
2931 let block_id = block.id();
2932
2933 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2934 focused_block = None;
2935 }
2936
2937 let (element, element_size) = self.render_block(
2938 block,
2939 AvailableSpace::MinContent,
2940 block_id,
2941 row,
2942 snapshot,
2943 text_x,
2944 &rows,
2945 line_layouts,
2946 gutter_dimensions,
2947 line_height,
2948 em_width,
2949 text_hitbox,
2950 editor_width,
2951 scroll_width,
2952 &mut resized_blocks,
2953 selections,
2954 selected_buffer_ids,
2955 is_row_soft_wrapped,
2956 sticky_header_excerpt_id,
2957 window,
2958 cx,
2959 );
2960 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2961 blocks.push(BlockLayout {
2962 id: block_id,
2963 row: Some(row),
2964 element,
2965 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2966 style: BlockStyle::Fixed,
2967 is_buffer_header: block.is_buffer_header(),
2968 });
2969 }
2970
2971 for (row, block) in non_fixed_blocks {
2972 let style = block.style();
2973 let width = match style {
2974 BlockStyle::Sticky => hitbox.size.width,
2975 BlockStyle::Flex => hitbox
2976 .size
2977 .width
2978 .max(fixed_block_max_width)
2979 .max(gutter_dimensions.width + *scroll_width),
2980 BlockStyle::Fixed => unreachable!(),
2981 };
2982 let block_id = block.id();
2983
2984 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2985 focused_block = None;
2986 }
2987
2988 let (element, element_size) = self.render_block(
2989 block,
2990 width.into(),
2991 block_id,
2992 row,
2993 snapshot,
2994 text_x,
2995 &rows,
2996 line_layouts,
2997 gutter_dimensions,
2998 line_height,
2999 em_width,
3000 text_hitbox,
3001 editor_width,
3002 scroll_width,
3003 &mut resized_blocks,
3004 selections,
3005 selected_buffer_ids,
3006 is_row_soft_wrapped,
3007 sticky_header_excerpt_id,
3008 window,
3009 cx,
3010 );
3011
3012 blocks.push(BlockLayout {
3013 id: block_id,
3014 row: Some(row),
3015 element,
3016 available_space: size(width.into(), element_size.height.into()),
3017 style,
3018 is_buffer_header: block.is_buffer_header(),
3019 });
3020 }
3021
3022 if let Some(focused_block) = focused_block {
3023 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3024 if focus_handle.is_focused(window) {
3025 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3026 let style = block.style();
3027 let width = match style {
3028 BlockStyle::Fixed => AvailableSpace::MinContent,
3029 BlockStyle::Flex => AvailableSpace::Definite(
3030 hitbox
3031 .size
3032 .width
3033 .max(fixed_block_max_width)
3034 .max(gutter_dimensions.width + *scroll_width),
3035 ),
3036 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3037 };
3038
3039 let (element, element_size) = self.render_block(
3040 &block,
3041 width,
3042 focused_block.id,
3043 rows.end,
3044 snapshot,
3045 text_x,
3046 &rows,
3047 line_layouts,
3048 gutter_dimensions,
3049 line_height,
3050 em_width,
3051 text_hitbox,
3052 editor_width,
3053 scroll_width,
3054 &mut resized_blocks,
3055 selections,
3056 selected_buffer_ids,
3057 is_row_soft_wrapped,
3058 sticky_header_excerpt_id,
3059 window,
3060 cx,
3061 );
3062
3063 blocks.push(BlockLayout {
3064 id: block.id(),
3065 row: None,
3066 element,
3067 available_space: size(width, element_size.height.into()),
3068 style,
3069 is_buffer_header: block.is_buffer_header(),
3070 });
3071 }
3072 }
3073 }
3074 }
3075
3076 if resized_blocks.is_empty() {
3077 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3078 Ok(blocks)
3079 } else {
3080 Err(resized_blocks)
3081 }
3082 }
3083
3084 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3085 /// a restart of rendering for the editor based on the new sizes.
3086 fn layout_blocks(
3087 &self,
3088 blocks: &mut Vec<BlockLayout>,
3089 block_starts: &mut HashSet<DisplayRow>,
3090 hitbox: &Hitbox,
3091 line_height: Pixels,
3092 scroll_pixel_position: gpui::Point<Pixels>,
3093 window: &mut Window,
3094 cx: &mut App,
3095 ) {
3096 for block in blocks {
3097 let mut origin = if let Some(row) = block.row {
3098 block_starts.insert(row);
3099 hitbox.origin
3100 + point(
3101 Pixels::ZERO,
3102 row.as_f32() * line_height - scroll_pixel_position.y,
3103 )
3104 } else {
3105 // Position the block outside the visible area
3106 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3107 };
3108
3109 if !matches!(block.style, BlockStyle::Sticky) {
3110 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3111 }
3112
3113 let focus_handle =
3114 block
3115 .element
3116 .prepaint_as_root(origin, block.available_space, window, cx);
3117
3118 if let Some(focus_handle) = focus_handle {
3119 self.editor.update(cx, |editor, _cx| {
3120 editor.set_focused_block(FocusedBlock {
3121 id: block.id,
3122 focus_handle: focus_handle.downgrade(),
3123 });
3124 });
3125 }
3126 }
3127 }
3128
3129 fn layout_sticky_buffer_header(
3130 &self,
3131 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3132 scroll_position: f32,
3133 line_height: Pixels,
3134 snapshot: &EditorSnapshot,
3135 hitbox: &Hitbox,
3136 selected_buffer_ids: &Vec<BufferId>,
3137 blocks: &[BlockLayout],
3138 window: &mut Window,
3139 cx: &mut App,
3140 ) -> AnyElement {
3141 let jump_data = header_jump_data(
3142 snapshot,
3143 DisplayRow(scroll_position as u32),
3144 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3145 excerpt,
3146 );
3147
3148 let editor_bg_color = cx.theme().colors().editor_background;
3149
3150 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3151
3152 let mut header = v_flex()
3153 .relative()
3154 .child(
3155 div()
3156 .w(hitbox.bounds.size.width)
3157 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3158 .bg(linear_gradient(
3159 0.,
3160 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3161 linear_color_stop(editor_bg_color, 0.6),
3162 ))
3163 .absolute()
3164 .top_0(),
3165 )
3166 .child(
3167 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3168 .into_any_element(),
3169 )
3170 .into_any_element();
3171
3172 let mut origin = hitbox.origin;
3173 // Move floating header up to avoid colliding with the next buffer header.
3174 for block in blocks.iter() {
3175 if !block.is_buffer_header {
3176 continue;
3177 }
3178
3179 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3180 continue;
3181 };
3182
3183 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3184 let offset = scroll_position - max_row as f32;
3185
3186 if offset > 0.0 {
3187 origin.y -= offset * line_height;
3188 }
3189 break;
3190 }
3191
3192 let size = size(
3193 AvailableSpace::Definite(hitbox.size.width),
3194 AvailableSpace::MinContent,
3195 );
3196
3197 header.prepaint_as_root(origin, size, window, cx);
3198
3199 header
3200 }
3201
3202 fn layout_cursor_popovers(
3203 &self,
3204 line_height: Pixels,
3205 text_hitbox: &Hitbox,
3206 content_origin: gpui::Point<Pixels>,
3207 start_row: DisplayRow,
3208 scroll_pixel_position: gpui::Point<Pixels>,
3209 line_layouts: &[LineWithInvisibles],
3210 cursor: DisplayPoint,
3211 cursor_point: Point,
3212 style: &EditorStyle,
3213 window: &mut Window,
3214 cx: &mut App,
3215 ) {
3216 let mut min_menu_height = Pixels::ZERO;
3217 let mut max_menu_height = Pixels::ZERO;
3218 let mut height_above_menu = Pixels::ZERO;
3219 let height_below_menu = Pixels::ZERO;
3220 let mut edit_prediction_popover_visible = false;
3221 let mut context_menu_visible = false;
3222 let context_menu_placement;
3223
3224 {
3225 let editor = self.editor.read(cx);
3226 if editor
3227 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3228 {
3229 height_above_menu +=
3230 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3231 edit_prediction_popover_visible = true;
3232 }
3233
3234 if editor.context_menu_visible() {
3235 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3236 let (min_height_in_lines, max_height_in_lines) = editor
3237 .context_menu_options
3238 .as_ref()
3239 .map_or((3, 12), |options| {
3240 (options.min_entries_visible, options.max_entries_visible)
3241 });
3242
3243 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3244 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3245 context_menu_visible = true;
3246 }
3247 }
3248 context_menu_placement = editor
3249 .context_menu_options
3250 .as_ref()
3251 .and_then(|options| options.placement.clone());
3252 }
3253
3254 let visible = edit_prediction_popover_visible || context_menu_visible;
3255 if !visible {
3256 return;
3257 }
3258
3259 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3260 let target_position = content_origin
3261 + gpui::Point {
3262 x: cmp::max(
3263 px(0.),
3264 cursor_row_layout.x_for_index(cursor.column() as usize)
3265 - scroll_pixel_position.x,
3266 ),
3267 y: cmp::max(
3268 px(0.),
3269 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3270 ),
3271 };
3272
3273 let viewport_bounds =
3274 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3275 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3276 ..Default::default()
3277 });
3278
3279 let min_height = height_above_menu + min_menu_height + height_below_menu;
3280 let max_height = height_above_menu + max_menu_height + height_below_menu;
3281 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3282 target_position,
3283 line_height,
3284 min_height,
3285 max_height,
3286 context_menu_placement,
3287 text_hitbox,
3288 viewport_bounds,
3289 window,
3290 cx,
3291 |height, max_width_for_stable_x, y_flipped, window, cx| {
3292 // First layout the menu to get its size - others can be at least this wide.
3293 let context_menu = if context_menu_visible {
3294 let menu_height = if y_flipped {
3295 height - height_below_menu
3296 } else {
3297 height - height_above_menu
3298 };
3299 let mut element = self
3300 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3301 .expect("Visible context menu should always render.");
3302 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3303 Some((CursorPopoverType::CodeContextMenu, element, size))
3304 } else {
3305 None
3306 };
3307 let min_width = context_menu
3308 .as_ref()
3309 .map_or(px(0.), |(_, _, size)| size.width);
3310 let max_width = max_width_for_stable_x.max(
3311 context_menu
3312 .as_ref()
3313 .map_or(px(0.), |(_, _, size)| size.width),
3314 );
3315
3316 let edit_prediction = if edit_prediction_popover_visible {
3317 self.editor.update(cx, move |editor, cx| {
3318 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3319 let mut element = editor.render_edit_prediction_cursor_popover(
3320 min_width,
3321 max_width,
3322 cursor_point,
3323 style,
3324 accept_binding.keystroke(),
3325 window,
3326 cx,
3327 )?;
3328 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3329 Some((CursorPopoverType::EditPrediction, element, size))
3330 })
3331 } else {
3332 None
3333 };
3334 vec![edit_prediction, context_menu]
3335 .into_iter()
3336 .flatten()
3337 .collect::<Vec<_>>()
3338 },
3339 ) else {
3340 return;
3341 };
3342
3343 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3344 .iter()
3345 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3346 else {
3347 return;
3348 };
3349 let last_ix = laid_out_popovers.len() - 1;
3350 let menu_is_last = menu_ix == last_ix;
3351 let first_popover_bounds = laid_out_popovers[0].1;
3352 let last_popover_bounds = laid_out_popovers[last_ix].1;
3353
3354 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3355 // right, and otherwise it goes below or to the right.
3356 let mut target_bounds = Bounds::from_corners(
3357 first_popover_bounds.origin,
3358 last_popover_bounds.bottom_right(),
3359 );
3360 target_bounds.size.width = menu_bounds.size.width;
3361
3362 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3363 // based on this is preferred for layout stability.
3364 let mut max_target_bounds = target_bounds;
3365 max_target_bounds.size.height = max_height;
3366 if y_flipped {
3367 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3368 }
3369
3370 // Add spacing around `target_bounds` and `max_target_bounds`.
3371 let mut extend_amount = Edges::all(MENU_GAP);
3372 if y_flipped {
3373 extend_amount.bottom = line_height;
3374 } else {
3375 extend_amount.top = line_height;
3376 }
3377 let target_bounds = target_bounds.extend(extend_amount);
3378 let max_target_bounds = max_target_bounds.extend(extend_amount);
3379
3380 let must_place_above_or_below =
3381 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3382 laid_out_popovers[menu_ix + 1..]
3383 .iter()
3384 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3385 } else {
3386 false
3387 };
3388
3389 self.layout_context_menu_aside(
3390 y_flipped,
3391 *menu_bounds,
3392 target_bounds,
3393 max_target_bounds,
3394 max_menu_height,
3395 must_place_above_or_below,
3396 text_hitbox,
3397 viewport_bounds,
3398 window,
3399 cx,
3400 );
3401 }
3402
3403 fn layout_gutter_menu(
3404 &self,
3405 line_height: Pixels,
3406 text_hitbox: &Hitbox,
3407 content_origin: gpui::Point<Pixels>,
3408 scroll_pixel_position: gpui::Point<Pixels>,
3409 gutter_overshoot: Pixels,
3410 window: &mut Window,
3411 cx: &mut App,
3412 ) {
3413 let editor = self.editor.read(cx);
3414 if !editor.context_menu_visible() {
3415 return;
3416 }
3417 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3418 editor.context_menu_origin()
3419 else {
3420 return;
3421 };
3422 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3423 // indicator than just a plain first column of the text field.
3424 let target_position = content_origin
3425 + gpui::Point {
3426 x: -gutter_overshoot,
3427 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3428 };
3429
3430 let (min_height_in_lines, max_height_in_lines) = editor
3431 .context_menu_options
3432 .as_ref()
3433 .map_or((3, 12), |options| {
3434 (options.min_entries_visible, options.max_entries_visible)
3435 });
3436
3437 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3438 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3439 let viewport_bounds =
3440 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3441 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3442 ..Default::default()
3443 });
3444 self.layout_popovers_above_or_below_line(
3445 target_position,
3446 line_height,
3447 min_height,
3448 max_height,
3449 editor
3450 .context_menu_options
3451 .as_ref()
3452 .and_then(|options| options.placement.clone()),
3453 text_hitbox,
3454 viewport_bounds,
3455 window,
3456 cx,
3457 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3458 let mut element = self
3459 .render_context_menu(line_height, height, y_flipped, window, cx)
3460 .expect("Visible context menu should always render.");
3461 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3462 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3463 },
3464 );
3465 }
3466
3467 fn layout_popovers_above_or_below_line(
3468 &self,
3469 target_position: gpui::Point<Pixels>,
3470 line_height: Pixels,
3471 min_height: Pixels,
3472 max_height: Pixels,
3473 placement: Option<ContextMenuPlacement>,
3474 text_hitbox: &Hitbox,
3475 viewport_bounds: Bounds<Pixels>,
3476 window: &mut Window,
3477 cx: &mut App,
3478 make_sized_popovers: impl FnOnce(
3479 Pixels,
3480 Pixels,
3481 bool,
3482 &mut Window,
3483 &mut App,
3484 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3485 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3486 let text_style = TextStyleRefinement {
3487 line_height: Some(DefiniteLength::Fraction(
3488 BufferLineHeight::Comfortable.value(),
3489 )),
3490 ..Default::default()
3491 };
3492 window.with_text_style(Some(text_style), |window| {
3493 // If the max height won't fit below and there is more space above, put it above the line.
3494 let bottom_y_when_flipped = target_position.y - line_height;
3495 let available_above = bottom_y_when_flipped - text_hitbox.top();
3496 let available_below = text_hitbox.bottom() - target_position.y;
3497 let y_overflows_below = max_height > available_below;
3498 let mut y_flipped = match placement {
3499 Some(ContextMenuPlacement::Above) => true,
3500 Some(ContextMenuPlacement::Below) => false,
3501 None => y_overflows_below && available_above > available_below,
3502 };
3503 let mut height = cmp::min(
3504 max_height,
3505 if y_flipped {
3506 available_above
3507 } else {
3508 available_below
3509 },
3510 );
3511
3512 // If the min height doesn't fit within text bounds, instead fit within the window.
3513 if height < min_height {
3514 let available_above = bottom_y_when_flipped;
3515 let available_below = viewport_bounds.bottom() - target_position.y;
3516 let (y_flipped_override, height_override) = match placement {
3517 Some(ContextMenuPlacement::Above) => {
3518 (true, cmp::min(available_above, min_height))
3519 }
3520 Some(ContextMenuPlacement::Below) => {
3521 (false, cmp::min(available_below, min_height))
3522 }
3523 None => {
3524 if available_below > min_height {
3525 (false, min_height)
3526 } else if available_above > min_height {
3527 (true, min_height)
3528 } else if available_above > available_below {
3529 (true, available_above)
3530 } else {
3531 (false, available_below)
3532 }
3533 }
3534 };
3535 y_flipped = y_flipped_override;
3536 height = height_override;
3537 }
3538
3539 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3540
3541 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3542 // for very narrow windows.
3543 let popovers =
3544 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3545 if popovers.is_empty() {
3546 return None;
3547 }
3548
3549 let max_width = popovers
3550 .iter()
3551 .map(|(_, _, size)| size.width)
3552 .max()
3553 .unwrap_or_default();
3554
3555 let mut current_position = gpui::Point {
3556 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3557 // overflow. Include space for the scrollbar.
3558 x: target_position
3559 .x
3560 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3561 y: if y_flipped {
3562 bottom_y_when_flipped
3563 } else {
3564 target_position.y
3565 },
3566 };
3567
3568 let mut laid_out_popovers = popovers
3569 .into_iter()
3570 .map(|(popover_type, element, size)| {
3571 if y_flipped {
3572 current_position.y -= size.height;
3573 }
3574 let position = current_position;
3575 window.defer_draw(element, current_position, 1);
3576 if !y_flipped {
3577 current_position.y += size.height + MENU_GAP;
3578 } else {
3579 current_position.y -= MENU_GAP;
3580 }
3581 (popover_type, Bounds::new(position, size))
3582 })
3583 .collect::<Vec<_>>();
3584
3585 if y_flipped {
3586 laid_out_popovers.reverse();
3587 }
3588
3589 Some((laid_out_popovers, y_flipped))
3590 })
3591 }
3592
3593 fn layout_context_menu_aside(
3594 &self,
3595 y_flipped: bool,
3596 menu_bounds: Bounds<Pixels>,
3597 target_bounds: Bounds<Pixels>,
3598 max_target_bounds: Bounds<Pixels>,
3599 max_height: Pixels,
3600 must_place_above_or_below: bool,
3601 text_hitbox: &Hitbox,
3602 viewport_bounds: Bounds<Pixels>,
3603 window: &mut Window,
3604 cx: &mut App,
3605 ) {
3606 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3607 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3608 && !must_place_above_or_below
3609 {
3610 let max_width = cmp::min(
3611 available_within_viewport.right - px(1.),
3612 MENU_ASIDE_MAX_WIDTH,
3613 );
3614 let Some(mut aside) = self.render_context_menu_aside(
3615 size(max_width, max_height - POPOVER_Y_PADDING),
3616 window,
3617 cx,
3618 ) else {
3619 return;
3620 };
3621 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3622 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3623 Some((aside, right_position))
3624 } else {
3625 let max_size = size(
3626 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3627 // won't be needed here.
3628 cmp::min(
3629 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3630 viewport_bounds.right(),
3631 ),
3632 cmp::min(
3633 max_height,
3634 cmp::max(
3635 available_within_viewport.top,
3636 available_within_viewport.bottom,
3637 ),
3638 ) - POPOVER_Y_PADDING,
3639 );
3640 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3641 return;
3642 };
3643 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3644
3645 let top_position = point(
3646 menu_bounds.origin.x,
3647 target_bounds.top() - actual_size.height,
3648 );
3649 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3650
3651 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3652 // Prefer to fit on the same side of the line as the menu, then on the other side of
3653 // the line.
3654 if !y_flipped && wanted.height < available.bottom {
3655 Some(bottom_position)
3656 } else if !y_flipped && wanted.height < available.top {
3657 Some(top_position)
3658 } else if y_flipped && wanted.height < available.top {
3659 Some(top_position)
3660 } else if y_flipped && wanted.height < available.bottom {
3661 Some(bottom_position)
3662 } else {
3663 None
3664 }
3665 };
3666
3667 // Prefer choosing a direction using max sizes rather than actual size for stability.
3668 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3669 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3670 let aside_position = fit_within(available_within_text, wanted)
3671 // Fallback: fit max size in window.
3672 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3673 // Fallback: fit actual size in window.
3674 .or_else(|| fit_within(available_within_viewport, actual_size));
3675
3676 aside_position.map(|position| (aside, position))
3677 };
3678
3679 // Skip drawing if it doesn't fit anywhere.
3680 if let Some((aside, position)) = positioned_aside {
3681 window.defer_draw(aside, position, 2);
3682 }
3683 }
3684
3685 fn render_context_menu(
3686 &self,
3687 line_height: Pixels,
3688 height: Pixels,
3689 y_flipped: bool,
3690 window: &mut Window,
3691 cx: &mut App,
3692 ) -> Option<AnyElement> {
3693 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3694 self.editor.update(cx, |editor, cx| {
3695 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3696 })
3697 }
3698
3699 fn render_context_menu_aside(
3700 &self,
3701 max_size: Size<Pixels>,
3702 window: &mut Window,
3703 cx: &mut App,
3704 ) -> Option<AnyElement> {
3705 if max_size.width < px(100.) || max_size.height < px(12.) {
3706 None
3707 } else {
3708 self.editor.update(cx, |editor, cx| {
3709 editor.render_context_menu_aside(max_size, window, cx)
3710 })
3711 }
3712 }
3713
3714 fn layout_mouse_context_menu(
3715 &self,
3716 editor_snapshot: &EditorSnapshot,
3717 visible_range: Range<DisplayRow>,
3718 content_origin: gpui::Point<Pixels>,
3719 window: &mut Window,
3720 cx: &mut App,
3721 ) -> Option<AnyElement> {
3722 let position = self.editor.update(cx, |editor, _cx| {
3723 let visible_start_point = editor.display_to_pixel_point(
3724 DisplayPoint::new(visible_range.start, 0),
3725 editor_snapshot,
3726 window,
3727 )?;
3728 let visible_end_point = editor.display_to_pixel_point(
3729 DisplayPoint::new(visible_range.end, 0),
3730 editor_snapshot,
3731 window,
3732 )?;
3733
3734 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3735 let (source_display_point, position) = match mouse_context_menu.position {
3736 MenuPosition::PinnedToScreen(point) => (None, point),
3737 MenuPosition::PinnedToEditor { source, offset } => {
3738 let source_display_point = source.to_display_point(editor_snapshot);
3739 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3740 let position = content_origin + source_point + offset;
3741 (Some(source_display_point), position)
3742 }
3743 };
3744
3745 let source_included = source_display_point.map_or(true, |source_display_point| {
3746 visible_range
3747 .to_inclusive()
3748 .contains(&source_display_point.row())
3749 });
3750 let position_included =
3751 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3752 if !source_included && !position_included {
3753 None
3754 } else {
3755 Some(position)
3756 }
3757 })?;
3758
3759 let text_style = TextStyleRefinement {
3760 line_height: Some(DefiniteLength::Fraction(
3761 BufferLineHeight::Comfortable.value(),
3762 )),
3763 ..Default::default()
3764 };
3765 window.with_text_style(Some(text_style), |window| {
3766 let mut element = self.editor.update(cx, |editor, _| {
3767 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3768 let context_menu = mouse_context_menu.context_menu.clone();
3769
3770 Some(
3771 deferred(
3772 anchored()
3773 .position(position)
3774 .child(context_menu)
3775 .anchor(Corner::TopLeft)
3776 .snap_to_window_with_margin(px(8.)),
3777 )
3778 .with_priority(1)
3779 .into_any(),
3780 )
3781 })?;
3782
3783 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3784 Some(element)
3785 })
3786 }
3787
3788 fn layout_hover_popovers(
3789 &self,
3790 snapshot: &EditorSnapshot,
3791 hitbox: &Hitbox,
3792 text_hitbox: &Hitbox,
3793 visible_display_row_range: Range<DisplayRow>,
3794 content_origin: gpui::Point<Pixels>,
3795 scroll_pixel_position: gpui::Point<Pixels>,
3796 line_layouts: &[LineWithInvisibles],
3797 line_height: Pixels,
3798 em_width: Pixels,
3799 window: &mut Window,
3800 cx: &mut App,
3801 ) {
3802 struct MeasuredHoverPopover {
3803 element: AnyElement,
3804 size: Size<Pixels>,
3805 horizontal_offset: Pixels,
3806 }
3807
3808 let max_size = size(
3809 (120. * em_width) // Default size
3810 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3811 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3812 (16. * line_height) // Default size
3813 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3814 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3815 );
3816
3817 let hover_popovers = self.editor.update(cx, |editor, cx| {
3818 editor
3819 .hover_state
3820 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3821 });
3822 let Some((position, hover_popovers)) = hover_popovers else {
3823 return;
3824 };
3825
3826 // This is safe because we check on layout whether the required row is available
3827 let hovered_row_layout =
3828 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3829
3830 // Compute Hovered Point
3831 let x =
3832 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3833 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3834 let hovered_point = content_origin + point(x, y);
3835
3836 let mut overall_height = Pixels::ZERO;
3837 let mut measured_hover_popovers = Vec::new();
3838 for mut hover_popover in hover_popovers {
3839 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3840 let horizontal_offset =
3841 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3842
3843 overall_height += HOVER_POPOVER_GAP + size.height;
3844
3845 measured_hover_popovers.push(MeasuredHoverPopover {
3846 element: hover_popover,
3847 size,
3848 horizontal_offset,
3849 });
3850 }
3851 overall_height += HOVER_POPOVER_GAP;
3852
3853 fn draw_occluder(
3854 width: Pixels,
3855 origin: gpui::Point<Pixels>,
3856 window: &mut Window,
3857 cx: &mut App,
3858 ) {
3859 let mut occlusion = div()
3860 .size_full()
3861 .occlude()
3862 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3863 .into_any_element();
3864 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3865 window.defer_draw(occlusion, origin, 2);
3866 }
3867
3868 if hovered_point.y > overall_height {
3869 // There is enough space above. Render popovers above the hovered point
3870 let mut current_y = hovered_point.y;
3871 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3872 let size = popover.size;
3873 let popover_origin = point(
3874 hovered_point.x + popover.horizontal_offset,
3875 current_y - size.height,
3876 );
3877
3878 window.defer_draw(popover.element, popover_origin, 2);
3879 if position != itertools::Position::Last {
3880 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3881 draw_occluder(size.width, origin, window, cx);
3882 }
3883
3884 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3885 }
3886 } else {
3887 // There is not enough space above. Render popovers below the hovered point
3888 let mut current_y = hovered_point.y + line_height;
3889 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3890 let size = popover.size;
3891 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3892
3893 window.defer_draw(popover.element, popover_origin, 2);
3894 if position != itertools::Position::Last {
3895 let origin = point(popover_origin.x, popover_origin.y + size.height);
3896 draw_occluder(size.width, origin, window, cx);
3897 }
3898
3899 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3900 }
3901 }
3902 }
3903
3904 fn layout_diff_hunk_controls(
3905 &self,
3906 row_range: Range<DisplayRow>,
3907 row_infos: &[RowInfo],
3908 text_hitbox: &Hitbox,
3909 position_map: &PositionMap,
3910 newest_cursor_position: Option<DisplayPoint>,
3911 line_height: Pixels,
3912 scroll_pixel_position: gpui::Point<Pixels>,
3913 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3914 editor: Entity<Editor>,
3915 window: &mut Window,
3916 cx: &mut App,
3917 ) -> Vec<AnyElement> {
3918 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
3919 let point_for_position = position_map.point_for_position(window.mouse_position());
3920
3921 let mut controls = vec![];
3922
3923 let active_positions = [
3924 Some(point_for_position.previous_valid),
3925 newest_cursor_position,
3926 ];
3927
3928 for (hunk, _) in display_hunks {
3929 if let DisplayDiffHunk::Unfolded {
3930 display_row_range,
3931 multi_buffer_range,
3932 status,
3933 is_created_file,
3934 ..
3935 } = &hunk
3936 {
3937 if display_row_range.start < row_range.start
3938 || display_row_range.start >= row_range.end
3939 {
3940 continue;
3941 }
3942 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3943 if row_infos[row_ix].diff_status.is_none() {
3944 continue;
3945 }
3946 if row_infos[row_ix]
3947 .diff_status
3948 .is_some_and(|status| status.is_added())
3949 && !status.is_added()
3950 {
3951 continue;
3952 }
3953 if active_positions
3954 .iter()
3955 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3956 {
3957 let y = display_row_range.start.as_f32() * line_height
3958 + text_hitbox.bounds.top()
3959 - scroll_pixel_position.y;
3960
3961 let mut element = render_diff_hunk_controls(
3962 display_row_range.start.0,
3963 status,
3964 multi_buffer_range.clone(),
3965 *is_created_file,
3966 line_height,
3967 &editor,
3968 cx,
3969 );
3970 let size =
3971 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3972
3973 let x = text_hitbox.bounds.right()
3974 - self.style.scrollbar_width
3975 - px(10.)
3976 - size.width;
3977
3978 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3979 element.prepaint(window, cx)
3980 });
3981 controls.push(element);
3982 }
3983 }
3984 }
3985
3986 controls
3987 }
3988
3989 fn layout_signature_help(
3990 &self,
3991 hitbox: &Hitbox,
3992 content_origin: gpui::Point<Pixels>,
3993 scroll_pixel_position: gpui::Point<Pixels>,
3994 newest_selection_head: Option<DisplayPoint>,
3995 start_row: DisplayRow,
3996 line_layouts: &[LineWithInvisibles],
3997 line_height: Pixels,
3998 em_width: Pixels,
3999 window: &mut Window,
4000 cx: &mut App,
4001 ) {
4002 if !self.editor.focus_handle(cx).is_focused(window) {
4003 return;
4004 }
4005 let Some(newest_selection_head) = newest_selection_head else {
4006 return;
4007 };
4008 let selection_row = newest_selection_head.row();
4009 if selection_row < start_row {
4010 return;
4011 }
4012 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4013 else {
4014 return;
4015 };
4016
4017 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4018 - scroll_pixel_position.x
4019 + content_origin.x;
4020 let start_y =
4021 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4022
4023 let max_size = size(
4024 (120. * em_width) // Default size
4025 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4026 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4027 (16. * line_height) // Default size
4028 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4029 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4030 );
4031
4032 let maybe_element = self.editor.update(cx, |editor, cx| {
4033 if let Some(popover) = editor.signature_help_state.popover_mut() {
4034 let element = popover.render(max_size, cx);
4035 Some(element)
4036 } else {
4037 None
4038 }
4039 });
4040 if let Some(mut element) = maybe_element {
4041 let window_size = window.viewport_size();
4042 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4043 let mut point = point(start_x, start_y - size.height);
4044
4045 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4046 if point.x + size.width >= window_size.width {
4047 point.x = window_size.width - size.width;
4048 }
4049
4050 window.defer_draw(element, point, 1)
4051 }
4052 }
4053
4054 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4055 window.paint_layer(layout.hitbox.bounds, |window| {
4056 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4057 let gutter_bg = cx.theme().colors().editor_gutter_background;
4058 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4059 window.paint_quad(fill(
4060 layout.position_map.text_hitbox.bounds,
4061 self.style.background,
4062 ));
4063
4064 if let EditorMode::Full = layout.mode {
4065 let mut active_rows = layout.active_rows.iter().peekable();
4066 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4067 let mut end_row = start_row.0;
4068 while active_rows
4069 .peek()
4070 .map_or(false, |(active_row, has_selection)| {
4071 active_row.0 == end_row + 1
4072 && has_selection.selection == contains_non_empty_selection.selection
4073 })
4074 {
4075 active_rows.next().unwrap();
4076 end_row += 1;
4077 }
4078
4079 if !contains_non_empty_selection.selection {
4080 let highlight_h_range =
4081 match layout.position_map.snapshot.current_line_highlight {
4082 CurrentLineHighlight::Gutter => Some(Range {
4083 start: layout.hitbox.left(),
4084 end: layout.gutter_hitbox.right(),
4085 }),
4086 CurrentLineHighlight::Line => Some(Range {
4087 start: layout.position_map.text_hitbox.bounds.left(),
4088 end: layout.position_map.text_hitbox.bounds.right(),
4089 }),
4090 CurrentLineHighlight::All => Some(Range {
4091 start: layout.hitbox.left(),
4092 end: layout.hitbox.right(),
4093 }),
4094 CurrentLineHighlight::None => None,
4095 };
4096 if let Some(range) = highlight_h_range {
4097 let active_line_bg = cx.theme().colors().editor_active_line_background;
4098 let bounds = Bounds {
4099 origin: point(
4100 range.start,
4101 layout.hitbox.origin.y
4102 + (start_row.as_f32() - scroll_top)
4103 * layout.position_map.line_height,
4104 ),
4105 size: size(
4106 range.end - range.start,
4107 layout.position_map.line_height
4108 * (end_row - start_row.0 + 1) as f32,
4109 ),
4110 };
4111 window.paint_quad(fill(bounds, active_line_bg));
4112 }
4113 }
4114 }
4115
4116 let mut paint_highlight = |highlight_row_start: DisplayRow,
4117 highlight_row_end: DisplayRow,
4118 highlight: crate::LineHighlight,
4119 edges| {
4120 let origin = point(
4121 layout.hitbox.origin.x,
4122 layout.hitbox.origin.y
4123 + (highlight_row_start.as_f32() - scroll_top)
4124 * layout.position_map.line_height,
4125 );
4126 let size = size(
4127 layout.hitbox.size.width,
4128 layout.position_map.line_height
4129 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4130 );
4131 let mut quad = fill(Bounds { origin, size }, highlight.background);
4132 if let Some(border_color) = highlight.border {
4133 quad.border_color = border_color;
4134 quad.border_widths = edges
4135 }
4136 window.paint_quad(quad);
4137 };
4138
4139 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4140 None;
4141 for (&new_row, &new_background) in &layout.highlighted_rows {
4142 match &mut current_paint {
4143 Some((current_background, current_range, mut edges)) => {
4144 let current_background = *current_background;
4145 let new_range_started = current_background != new_background
4146 || current_range.end.next_row() != new_row;
4147 if new_range_started {
4148 if current_range.end.next_row() == new_row {
4149 edges.bottom = px(0.);
4150 };
4151 paint_highlight(
4152 current_range.start,
4153 current_range.end,
4154 current_background,
4155 edges,
4156 );
4157 let edges = Edges {
4158 top: if current_range.end.next_row() != new_row {
4159 px(1.)
4160 } else {
4161 px(0.)
4162 },
4163 bottom: px(1.),
4164 ..Default::default()
4165 };
4166 current_paint = Some((new_background, new_row..new_row, edges));
4167 continue;
4168 } else {
4169 current_range.end = current_range.end.next_row();
4170 }
4171 }
4172 None => {
4173 let edges = Edges {
4174 top: px(1.),
4175 bottom: px(1.),
4176 ..Default::default()
4177 };
4178 current_paint = Some((new_background, new_row..new_row, edges))
4179 }
4180 };
4181 }
4182 if let Some((color, range, edges)) = current_paint {
4183 paint_highlight(range.start, range.end, color, edges);
4184 }
4185
4186 let scroll_left =
4187 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4188
4189 for (wrap_position, active) in layout.wrap_guides.iter() {
4190 let x = (layout.position_map.text_hitbox.origin.x
4191 + *wrap_position
4192 + layout.position_map.em_width / 2.)
4193 - scroll_left;
4194
4195 let show_scrollbars = layout
4196 .scrollbars_layout
4197 .as_ref()
4198 .map_or(false, |layout| layout.visible);
4199
4200 if x < layout.position_map.text_hitbox.origin.x
4201 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4202 {
4203 continue;
4204 }
4205
4206 let color = if *active {
4207 cx.theme().colors().editor_active_wrap_guide
4208 } else {
4209 cx.theme().colors().editor_wrap_guide
4210 };
4211 window.paint_quad(fill(
4212 Bounds {
4213 origin: point(x, layout.position_map.text_hitbox.origin.y),
4214 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4215 },
4216 color,
4217 ));
4218 }
4219 }
4220 })
4221 }
4222
4223 fn paint_indent_guides(
4224 &mut self,
4225 layout: &mut EditorLayout,
4226 window: &mut Window,
4227 cx: &mut App,
4228 ) {
4229 let Some(indent_guides) = &layout.indent_guides else {
4230 return;
4231 };
4232
4233 let faded_color = |color: Hsla, alpha: f32| {
4234 let mut faded = color;
4235 faded.a = alpha;
4236 faded
4237 };
4238
4239 for indent_guide in indent_guides {
4240 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4241 let settings = indent_guide.settings;
4242
4243 // TODO fixed for now, expose them through themes later
4244 const INDENT_AWARE_ALPHA: f32 = 0.2;
4245 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4246 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4247 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4248
4249 let line_color = match (settings.coloring, indent_guide.active) {
4250 (IndentGuideColoring::Disabled, _) => None,
4251 (IndentGuideColoring::Fixed, false) => {
4252 Some(cx.theme().colors().editor_indent_guide)
4253 }
4254 (IndentGuideColoring::Fixed, true) => {
4255 Some(cx.theme().colors().editor_indent_guide_active)
4256 }
4257 (IndentGuideColoring::IndentAware, false) => {
4258 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4259 }
4260 (IndentGuideColoring::IndentAware, true) => {
4261 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4262 }
4263 };
4264
4265 let background_color = match (settings.background_coloring, indent_guide.active) {
4266 (IndentGuideBackgroundColoring::Disabled, _) => None,
4267 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4268 indent_accent_colors,
4269 INDENT_AWARE_BACKGROUND_ALPHA,
4270 )),
4271 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4272 indent_accent_colors,
4273 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4274 )),
4275 };
4276
4277 let requested_line_width = if indent_guide.active {
4278 settings.active_line_width
4279 } else {
4280 settings.line_width
4281 }
4282 .clamp(1, 10);
4283 let mut line_indicator_width = 0.;
4284 if let Some(color) = line_color {
4285 window.paint_quad(fill(
4286 Bounds {
4287 origin: indent_guide.origin,
4288 size: size(px(requested_line_width as f32), indent_guide.length),
4289 },
4290 color,
4291 ));
4292 line_indicator_width = requested_line_width as f32;
4293 }
4294
4295 if let Some(color) = background_color {
4296 let width = indent_guide.single_indent_width - px(line_indicator_width);
4297 window.paint_quad(fill(
4298 Bounds {
4299 origin: point(
4300 indent_guide.origin.x + px(line_indicator_width),
4301 indent_guide.origin.y,
4302 ),
4303 size: size(width, indent_guide.length),
4304 },
4305 color,
4306 ));
4307 }
4308 }
4309 }
4310
4311 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4312 let is_singleton = self.editor.read(cx).is_singleton(cx);
4313
4314 let line_height = layout.position_map.line_height;
4315 window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox));
4316
4317 for LineNumberLayout {
4318 shaped_line,
4319 hitbox,
4320 } in layout.line_numbers.values()
4321 {
4322 let Some(hitbox) = hitbox else {
4323 continue;
4324 };
4325
4326 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4327 let color = cx.theme().colors().editor_hover_line_number;
4328
4329 let Some(line) = self
4330 .shape_line_number(shaped_line.text.clone(), color, window)
4331 .log_err()
4332 else {
4333 continue;
4334 };
4335
4336 line.paint(hitbox.origin, line_height, window, cx).log_err()
4337 } else {
4338 shaped_line
4339 .paint(hitbox.origin, line_height, window, cx)
4340 .log_err()
4341 }) else {
4342 continue;
4343 };
4344
4345 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4346 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4347 if is_singleton {
4348 window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox));
4349 } else {
4350 window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox));
4351 }
4352 }
4353 }
4354
4355 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4356 if layout.display_hunks.is_empty() {
4357 return;
4358 }
4359
4360 let line_height = layout.position_map.line_height;
4361 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4362 for (hunk, hitbox) in &layout.display_hunks {
4363 let hunk_to_paint = match hunk {
4364 DisplayDiffHunk::Folded { .. } => {
4365 let hunk_bounds = Self::diff_hunk_bounds(
4366 &layout.position_map.snapshot,
4367 line_height,
4368 layout.gutter_hitbox.bounds,
4369 &hunk,
4370 );
4371 Some((
4372 hunk_bounds,
4373 cx.theme().colors().version_control_modified,
4374 Corners::all(px(0.)),
4375 DiffHunkStatus::modified_none(),
4376 ))
4377 }
4378 DisplayDiffHunk::Unfolded {
4379 status,
4380 display_row_range,
4381 ..
4382 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4383 DiffHunkStatusKind::Added => (
4384 hunk_hitbox.bounds,
4385 cx.theme().colors().version_control_added,
4386 Corners::all(px(0.)),
4387 *status,
4388 ),
4389 DiffHunkStatusKind::Modified => (
4390 hunk_hitbox.bounds,
4391 cx.theme().colors().version_control_modified,
4392 Corners::all(px(0.)),
4393 *status,
4394 ),
4395 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4396 hunk_hitbox.bounds,
4397 cx.theme().colors().version_control_deleted,
4398 Corners::all(px(0.)),
4399 *status,
4400 ),
4401 DiffHunkStatusKind::Deleted => (
4402 Bounds::new(
4403 point(
4404 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4405 hunk_hitbox.origin.y,
4406 ),
4407 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4408 ),
4409 cx.theme().colors().version_control_deleted,
4410 Corners::all(1. * line_height),
4411 *status,
4412 ),
4413 }),
4414 };
4415
4416 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4417 // Flatten the background color with the editor color to prevent
4418 // elements below transparent hunks from showing through
4419 let flattened_background_color = cx
4420 .theme()
4421 .colors()
4422 .editor_background
4423 .blend(background_color);
4424
4425 if !Self::diff_hunk_hollow(status, cx) {
4426 window.paint_quad(quad(
4427 hunk_bounds,
4428 corner_radii,
4429 flattened_background_color,
4430 Edges::default(),
4431 transparent_black(),
4432 BorderStyle::default(),
4433 ));
4434 } else {
4435 let flattened_unstaged_background_color = cx
4436 .theme()
4437 .colors()
4438 .editor_background
4439 .blend(background_color.opacity(0.3));
4440
4441 window.paint_quad(quad(
4442 hunk_bounds,
4443 corner_radii,
4444 flattened_unstaged_background_color,
4445 Edges::all(Pixels(1.0)),
4446 flattened_background_color,
4447 BorderStyle::Solid,
4448 ));
4449 }
4450 }
4451 }
4452 });
4453 }
4454
4455 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4456 (0.275 * line_height).floor()
4457 }
4458
4459 fn diff_hunk_bounds(
4460 snapshot: &EditorSnapshot,
4461 line_height: Pixels,
4462 gutter_bounds: Bounds<Pixels>,
4463 hunk: &DisplayDiffHunk,
4464 ) -> Bounds<Pixels> {
4465 let scroll_position = snapshot.scroll_position();
4466 let scroll_top = scroll_position.y * line_height;
4467 let gutter_strip_width = Self::gutter_strip_width(line_height);
4468
4469 match hunk {
4470 DisplayDiffHunk::Folded { display_row, .. } => {
4471 let start_y = display_row.as_f32() * line_height - scroll_top;
4472 let end_y = start_y + line_height;
4473 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4474 let highlight_size = size(gutter_strip_width, end_y - start_y);
4475 Bounds::new(highlight_origin, highlight_size)
4476 }
4477 DisplayDiffHunk::Unfolded {
4478 display_row_range,
4479 status,
4480 ..
4481 } => {
4482 if status.is_deleted() && display_row_range.is_empty() {
4483 let row = display_row_range.start;
4484
4485 let offset = line_height / 2.;
4486 let start_y = row.as_f32() * line_height - offset - scroll_top;
4487 let end_y = start_y + line_height;
4488
4489 let width = (0.35 * line_height).floor();
4490 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4491 let highlight_size = size(width, end_y - start_y);
4492 Bounds::new(highlight_origin, highlight_size)
4493 } else {
4494 let start_row = display_row_range.start;
4495 let end_row = display_row_range.end;
4496 // If we're in a multibuffer, row range span might include an
4497 // excerpt header, so if we were to draw the marker straight away,
4498 // the hunk might include the rows of that header.
4499 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4500 // Instead, we simply check whether the range we're dealing with includes
4501 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4502 let end_row_in_current_excerpt = snapshot
4503 .blocks_in_range(start_row..end_row)
4504 .find_map(|(start_row, block)| {
4505 if matches!(block, Block::ExcerptBoundary { .. }) {
4506 Some(start_row)
4507 } else {
4508 None
4509 }
4510 })
4511 .unwrap_or(end_row);
4512
4513 let start_y = start_row.as_f32() * line_height - scroll_top;
4514 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4515
4516 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4517 let highlight_size = size(gutter_strip_width, end_y - start_y);
4518 Bounds::new(highlight_origin, highlight_size)
4519 }
4520 }
4521 }
4522 }
4523
4524 fn paint_gutter_indicators(
4525 &self,
4526 layout: &mut EditorLayout,
4527 window: &mut Window,
4528 cx: &mut App,
4529 ) {
4530 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4531 window.with_element_namespace("crease_toggles", |window| {
4532 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4533 crease_toggle.paint(window, cx);
4534 }
4535 });
4536
4537 window.with_element_namespace("expand_toggles", |window| {
4538 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4539 expand_toggle.paint(window, cx);
4540 }
4541 });
4542
4543 for breakpoint in layout.breakpoints.iter_mut() {
4544 breakpoint.paint(window, cx);
4545 }
4546
4547 for test_indicator in layout.test_indicators.iter_mut() {
4548 test_indicator.paint(window, cx);
4549 }
4550
4551 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4552 indicator.paint(window, cx);
4553 }
4554 });
4555 }
4556
4557 fn paint_gutter_highlights(
4558 &self,
4559 layout: &mut EditorLayout,
4560 window: &mut Window,
4561 cx: &mut App,
4562 ) {
4563 for (_, hunk_hitbox) in &layout.display_hunks {
4564 if let Some(hunk_hitbox) = hunk_hitbox {
4565 if !self
4566 .editor
4567 .read(cx)
4568 .buffer()
4569 .read(cx)
4570 .all_diff_hunks_expanded()
4571 {
4572 window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox));
4573 }
4574 }
4575 }
4576
4577 let show_git_gutter = layout
4578 .position_map
4579 .snapshot
4580 .show_git_diff_gutter
4581 .unwrap_or_else(|| {
4582 matches!(
4583 ProjectSettings::get_global(cx).git.git_gutter,
4584 Some(GitGutterSetting::TrackedFiles)
4585 )
4586 });
4587 if show_git_gutter {
4588 Self::paint_gutter_diff_hunks(layout, window, cx)
4589 }
4590
4591 let highlight_width = 0.275 * layout.position_map.line_height;
4592 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4593 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4594 for (range, color) in &layout.highlighted_gutter_ranges {
4595 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4596 layout.visible_display_row_range.start - DisplayRow(1)
4597 } else {
4598 range.start.row()
4599 };
4600 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4601 layout.visible_display_row_range.end + DisplayRow(1)
4602 } else {
4603 range.end.row()
4604 };
4605
4606 let start_y = layout.gutter_hitbox.top()
4607 + start_row.0 as f32 * layout.position_map.line_height
4608 - layout.position_map.scroll_pixel_position.y;
4609 let end_y = layout.gutter_hitbox.top()
4610 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4611 - layout.position_map.scroll_pixel_position.y;
4612 let bounds = Bounds::from_corners(
4613 point(layout.gutter_hitbox.left(), start_y),
4614 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4615 );
4616 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4617 }
4618 });
4619 }
4620
4621 fn paint_blamed_display_rows(
4622 &self,
4623 layout: &mut EditorLayout,
4624 window: &mut Window,
4625 cx: &mut App,
4626 ) {
4627 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4628 return;
4629 };
4630
4631 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4632 for mut blame_element in blamed_display_rows.into_iter() {
4633 blame_element.paint(window, cx);
4634 }
4635 })
4636 }
4637
4638 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4639 window.with_content_mask(
4640 Some(ContentMask {
4641 bounds: layout.position_map.text_hitbox.bounds,
4642 }),
4643 |window| {
4644 let editor = self.editor.read(cx);
4645 if editor.mouse_cursor_hidden {
4646 window.set_cursor_style(CursorStyle::None, None);
4647 } else if editor
4648 .hovered_link_state
4649 .as_ref()
4650 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4651 {
4652 window.set_cursor_style(
4653 CursorStyle::PointingHand,
4654 Some(&layout.position_map.text_hitbox),
4655 );
4656 } else {
4657 window.set_cursor_style(
4658 CursorStyle::IBeam,
4659 Some(&layout.position_map.text_hitbox),
4660 );
4661 };
4662
4663 self.paint_lines_background(layout, window, cx);
4664 let invisible_display_ranges = self.paint_highlights(layout, window);
4665 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4666 self.paint_redactions(layout, window);
4667 self.paint_cursors(layout, window, cx);
4668 self.paint_inline_diagnostics(layout, window, cx);
4669 self.paint_inline_blame(layout, window, cx);
4670 self.paint_diff_hunk_controls(layout, window, cx);
4671 window.with_element_namespace("crease_trailers", |window| {
4672 for trailer in layout.crease_trailers.iter_mut().flatten() {
4673 trailer.element.paint(window, cx);
4674 }
4675 });
4676 },
4677 )
4678 }
4679
4680 fn paint_highlights(
4681 &mut self,
4682 layout: &mut EditorLayout,
4683 window: &mut Window,
4684 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4685 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4686 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4687 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4688 for (range, color) in &layout.highlighted_ranges {
4689 self.paint_highlighted_range(
4690 range.clone(),
4691 *color,
4692 Pixels::ZERO,
4693 line_end_overshoot,
4694 layout,
4695 window,
4696 );
4697 }
4698
4699 let corner_radius = 0.15 * layout.position_map.line_height;
4700
4701 for (player_color, selections) in &layout.selections {
4702 for selection in selections.iter() {
4703 self.paint_highlighted_range(
4704 selection.range.clone(),
4705 player_color.selection,
4706 corner_radius,
4707 corner_radius * 2.,
4708 layout,
4709 window,
4710 );
4711
4712 if selection.is_local && !selection.range.is_empty() {
4713 invisible_display_ranges.push(selection.range.clone());
4714 }
4715 }
4716 }
4717 invisible_display_ranges
4718 })
4719 }
4720
4721 fn paint_lines(
4722 &mut self,
4723 invisible_display_ranges: &[Range<DisplayPoint>],
4724 layout: &mut EditorLayout,
4725 window: &mut Window,
4726 cx: &mut App,
4727 ) {
4728 let whitespace_setting = self
4729 .editor
4730 .read(cx)
4731 .buffer
4732 .read(cx)
4733 .language_settings(cx)
4734 .show_whitespaces;
4735
4736 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4737 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4738 line_with_invisibles.draw(
4739 layout,
4740 row,
4741 layout.content_origin,
4742 whitespace_setting,
4743 invisible_display_ranges,
4744 window,
4745 cx,
4746 )
4747 }
4748
4749 for line_element in &mut layout.line_elements {
4750 line_element.paint(window, cx);
4751 }
4752 }
4753
4754 fn paint_lines_background(
4755 &mut self,
4756 layout: &mut EditorLayout,
4757 window: &mut Window,
4758 cx: &mut App,
4759 ) {
4760 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4761 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4762 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4763 }
4764 }
4765
4766 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4767 if layout.redacted_ranges.is_empty() {
4768 return;
4769 }
4770
4771 let line_end_overshoot = layout.line_end_overshoot();
4772
4773 // A softer than perfect black
4774 let redaction_color = gpui::rgb(0x0e1111);
4775
4776 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4777 for range in layout.redacted_ranges.iter() {
4778 self.paint_highlighted_range(
4779 range.clone(),
4780 redaction_color.into(),
4781 Pixels::ZERO,
4782 line_end_overshoot,
4783 layout,
4784 window,
4785 );
4786 }
4787 });
4788 }
4789
4790 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4791 for cursor in &mut layout.visible_cursors {
4792 cursor.paint(layout.content_origin, window, cx);
4793 }
4794 }
4795
4796 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4797 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
4798 return;
4799 };
4800
4801 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
4802 let hitbox = &scrollbar_layout.hitbox;
4803 let thumb_bounds = scrollbar_layout.thumb_bounds();
4804
4805 if scrollbars_layout.visible {
4806 let scrollbar_edges = match axis {
4807 ScrollbarAxis::Horizontal => Edges {
4808 top: Pixels::ZERO,
4809 right: Pixels::ZERO,
4810 bottom: Pixels::ZERO,
4811 left: Pixels::ZERO,
4812 },
4813 ScrollbarAxis::Vertical => Edges {
4814 top: Pixels::ZERO,
4815 right: Pixels::ZERO,
4816 bottom: Pixels::ZERO,
4817 left: ScrollbarLayout::BORDER_WIDTH,
4818 },
4819 };
4820
4821 window.paint_layer(hitbox.bounds, |window| {
4822 window.paint_quad(quad(
4823 hitbox.bounds,
4824 Corners::default(),
4825 cx.theme().colors().scrollbar_track_background,
4826 scrollbar_edges,
4827 cx.theme().colors().scrollbar_track_border,
4828 BorderStyle::Solid,
4829 ));
4830
4831 if axis == ScrollbarAxis::Vertical {
4832 let fast_markers =
4833 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4834 // Refresh slow scrollbar markers in the background. Below, we
4835 // paint whatever markers have already been computed.
4836 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4837
4838 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4839 for marker in markers.iter().chain(&fast_markers) {
4840 let mut marker = marker.clone();
4841 marker.bounds.origin += hitbox.origin;
4842 window.paint_quad(marker);
4843 }
4844 }
4845
4846 window.paint_quad(quad(
4847 thumb_bounds,
4848 Corners::default(),
4849 cx.theme().colors().scrollbar_thumb_background,
4850 scrollbar_edges,
4851 cx.theme().colors().scrollbar_thumb_border,
4852 BorderStyle::Solid,
4853 ));
4854 })
4855 }
4856 window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox));
4857 }
4858
4859 window.on_mouse_event({
4860 let editor = self.editor.clone();
4861 let scrollbars_layout = scrollbars_layout.clone();
4862
4863 let mut mouse_position = window.mouse_position();
4864 move |event: &MouseMoveEvent, phase, window, cx| {
4865 if phase == DispatchPhase::Capture {
4866 return;
4867 }
4868
4869 editor.update(cx, |editor, cx| {
4870 if let Some((scrollbar_layout, axis)) = event
4871 .pressed_button
4872 .filter(|button| *button == MouseButton::Left)
4873 .and(editor.scroll_manager.dragging_scrollbar_axis())
4874 .and_then(|axis| {
4875 scrollbars_layout
4876 .iter_scrollbars()
4877 .find(|(_, a)| *a == axis)
4878 })
4879 {
4880 let ScrollbarLayout {
4881 hitbox,
4882 text_unit_size,
4883 ..
4884 } = scrollbar_layout;
4885
4886 let old_position = mouse_position.along(axis);
4887 let new_position = event.position.along(axis);
4888 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
4889 .contains(&old_position)
4890 {
4891 let position = editor.scroll_position(cx).apply_along(axis, |p| {
4892 (p + (new_position - old_position) / *text_unit_size).max(0.)
4893 });
4894 editor.set_scroll_position(position, window, cx);
4895 }
4896 cx.stop_propagation();
4897 } else {
4898 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4899 }
4900
4901 if scrollbars_layout.get_hovered_axis(window).is_some() {
4902 editor.scroll_manager.show_scrollbars(window, cx);
4903 }
4904
4905 mouse_position = event.position;
4906 })
4907 }
4908 });
4909
4910 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
4911 window.on_mouse_event({
4912 let editor = self.editor.clone();
4913 move |_: &MouseUpEvent, phase, _, cx| {
4914 if phase == DispatchPhase::Capture {
4915 return;
4916 }
4917
4918 editor.update(cx, |editor, cx| {
4919 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4920 cx.stop_propagation();
4921 });
4922 }
4923 });
4924 } else {
4925 window.on_mouse_event({
4926 let editor = self.editor.clone();
4927 let scrollbars_layout = scrollbars_layout.clone();
4928
4929 move |event: &MouseDownEvent, phase, window, cx| {
4930 if phase == DispatchPhase::Capture {
4931 return;
4932 }
4933 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
4934 else {
4935 return;
4936 };
4937
4938 let ScrollbarLayout {
4939 hitbox,
4940 visible_range,
4941 text_unit_size,
4942 ..
4943 } = scrollbar_layout;
4944
4945 let thumb_bounds = scrollbar_layout.thumb_bounds();
4946
4947 editor.update(cx, |editor, cx| {
4948 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
4949
4950 let event_position = event.position.along(axis);
4951
4952 if event_position < thumb_bounds.origin.along(axis)
4953 || thumb_bounds.bottom_right().along(axis) < event_position
4954 {
4955 let center_position = ((event_position - hitbox.origin.along(axis))
4956 / *text_unit_size)
4957 .round() as u32;
4958 let start_position = center_position.saturating_sub(
4959 (visible_range.end - visible_range.start) as u32 / 2,
4960 );
4961
4962 let position = editor
4963 .scroll_position(cx)
4964 .apply_along(axis, |_| start_position as f32);
4965
4966 editor.set_scroll_position(position, window, cx);
4967 } else {
4968 editor.scroll_manager.show_scrollbars(window, cx);
4969 }
4970
4971 cx.stop_propagation();
4972 });
4973 }
4974 });
4975 }
4976 }
4977
4978 fn collect_fast_scrollbar_markers(
4979 &self,
4980 layout: &EditorLayout,
4981 scrollbar_layout: &ScrollbarLayout,
4982 cx: &mut App,
4983 ) -> Vec<PaintQuad> {
4984 const LIMIT: usize = 100;
4985 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
4986 return vec![];
4987 }
4988 let cursor_ranges = layout
4989 .cursors
4990 .iter()
4991 .map(|(point, color)| ColoredRange {
4992 start: point.row(),
4993 end: point.row(),
4994 color: *color,
4995 })
4996 .collect_vec();
4997 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
4998 }
4999
5000 fn refresh_slow_scrollbar_markers(
5001 &self,
5002 layout: &EditorLayout,
5003 scrollbar_layout: &ScrollbarLayout,
5004 window: &mut Window,
5005 cx: &mut App,
5006 ) {
5007 self.editor.update(cx, |editor, cx| {
5008 if !editor.is_singleton(cx)
5009 || !editor
5010 .scrollbar_marker_state
5011 .should_refresh(scrollbar_layout.hitbox.size)
5012 {
5013 return;
5014 }
5015
5016 let scrollbar_layout = scrollbar_layout.clone();
5017 let background_highlights = editor.background_highlights.clone();
5018 let snapshot = layout.position_map.snapshot.clone();
5019 let theme = cx.theme().clone();
5020 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5021
5022 editor.scrollbar_marker_state.dirty = false;
5023 editor.scrollbar_marker_state.pending_refresh =
5024 Some(cx.spawn_in(window, async move |editor, cx| {
5025 let scrollbar_size = scrollbar_layout.hitbox.size;
5026 let scrollbar_markers = cx
5027 .background_spawn(async move {
5028 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5029 let mut marker_quads = Vec::new();
5030 if scrollbar_settings.git_diff {
5031 let marker_row_ranges =
5032 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5033 let start_display_row =
5034 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5035 .to_display_point(&snapshot.display_snapshot)
5036 .row();
5037 let mut end_display_row =
5038 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5039 .to_display_point(&snapshot.display_snapshot)
5040 .row();
5041 if end_display_row != start_display_row {
5042 end_display_row.0 -= 1;
5043 }
5044 let color = match &hunk.status().kind {
5045 DiffHunkStatusKind::Added => {
5046 theme.colors().version_control_added
5047 }
5048 DiffHunkStatusKind::Modified => {
5049 theme.colors().version_control_modified
5050 }
5051 DiffHunkStatusKind::Deleted => {
5052 theme.colors().version_control_deleted
5053 }
5054 };
5055 ColoredRange {
5056 start: start_display_row,
5057 end: end_display_row,
5058 color,
5059 }
5060 });
5061
5062 marker_quads.extend(
5063 scrollbar_layout
5064 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5065 );
5066 }
5067
5068 for (background_highlight_id, (_, background_ranges)) in
5069 background_highlights.iter()
5070 {
5071 let is_search_highlights = *background_highlight_id
5072 == TypeId::of::<BufferSearchHighlights>();
5073 let is_text_highlights = *background_highlight_id
5074 == TypeId::of::<SelectedTextHighlight>();
5075 let is_symbol_occurrences = *background_highlight_id
5076 == TypeId::of::<DocumentHighlightRead>()
5077 || *background_highlight_id
5078 == TypeId::of::<DocumentHighlightWrite>();
5079 if (is_search_highlights && scrollbar_settings.search_results)
5080 || (is_text_highlights && scrollbar_settings.selected_text)
5081 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5082 {
5083 let mut color = theme.status().info;
5084 if is_symbol_occurrences {
5085 color.fade_out(0.5);
5086 }
5087 let marker_row_ranges = background_ranges.iter().map(|range| {
5088 let display_start = range
5089 .start
5090 .to_display_point(&snapshot.display_snapshot);
5091 let display_end =
5092 range.end.to_display_point(&snapshot.display_snapshot);
5093 ColoredRange {
5094 start: display_start.row(),
5095 end: display_end.row(),
5096 color,
5097 }
5098 });
5099 marker_quads.extend(
5100 scrollbar_layout
5101 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5102 );
5103 }
5104 }
5105
5106 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5107 let diagnostics = snapshot
5108 .buffer_snapshot
5109 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5110 // Don't show diagnostics the user doesn't care about
5111 .filter(|diagnostic| {
5112 match (
5113 scrollbar_settings.diagnostics,
5114 diagnostic.diagnostic.severity,
5115 ) {
5116 (ScrollbarDiagnostics::All, _) => true,
5117 (
5118 ScrollbarDiagnostics::Error,
5119 DiagnosticSeverity::ERROR,
5120 ) => true,
5121 (
5122 ScrollbarDiagnostics::Warning,
5123 DiagnosticSeverity::ERROR
5124 | DiagnosticSeverity::WARNING,
5125 ) => true,
5126 (
5127 ScrollbarDiagnostics::Information,
5128 DiagnosticSeverity::ERROR
5129 | DiagnosticSeverity::WARNING
5130 | DiagnosticSeverity::INFORMATION,
5131 ) => true,
5132 (_, _) => false,
5133 }
5134 })
5135 // We want to sort by severity, in order to paint the most severe diagnostics last.
5136 .sorted_by_key(|diagnostic| {
5137 std::cmp::Reverse(diagnostic.diagnostic.severity)
5138 });
5139
5140 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5141 let start_display = diagnostic
5142 .range
5143 .start
5144 .to_display_point(&snapshot.display_snapshot);
5145 let end_display = diagnostic
5146 .range
5147 .end
5148 .to_display_point(&snapshot.display_snapshot);
5149 let color = match diagnostic.diagnostic.severity {
5150 DiagnosticSeverity::ERROR => theme.status().error,
5151 DiagnosticSeverity::WARNING => theme.status().warning,
5152 DiagnosticSeverity::INFORMATION => theme.status().info,
5153 _ => theme.status().hint,
5154 };
5155 ColoredRange {
5156 start: start_display.row(),
5157 end: end_display.row(),
5158 color,
5159 }
5160 });
5161 marker_quads.extend(
5162 scrollbar_layout
5163 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5164 );
5165 }
5166
5167 Arc::from(marker_quads)
5168 })
5169 .await;
5170
5171 editor.update(cx, |editor, cx| {
5172 editor.scrollbar_marker_state.markers = scrollbar_markers;
5173 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5174 editor.scrollbar_marker_state.pending_refresh = None;
5175 cx.notify();
5176 })?;
5177
5178 Ok(())
5179 }));
5180 });
5181 }
5182
5183 fn paint_highlighted_range(
5184 &self,
5185 range: Range<DisplayPoint>,
5186 color: Hsla,
5187 corner_radius: Pixels,
5188 line_end_overshoot: Pixels,
5189 layout: &EditorLayout,
5190 window: &mut Window,
5191 ) {
5192 let start_row = layout.visible_display_row_range.start;
5193 let end_row = layout.visible_display_row_range.end;
5194 if range.start != range.end {
5195 let row_range = if range.end.column() == 0 {
5196 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5197 } else {
5198 cmp::max(range.start.row(), start_row)
5199 ..cmp::min(range.end.row().next_row(), end_row)
5200 };
5201
5202 let highlighted_range = HighlightedRange {
5203 color,
5204 line_height: layout.position_map.line_height,
5205 corner_radius,
5206 start_y: layout.content_origin.y
5207 + row_range.start.as_f32() * layout.position_map.line_height
5208 - layout.position_map.scroll_pixel_position.y,
5209 lines: row_range
5210 .iter_rows()
5211 .map(|row| {
5212 let line_layout =
5213 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5214 HighlightedRangeLine {
5215 start_x: if row == range.start.row() {
5216 layout.content_origin.x
5217 + line_layout.x_for_index(range.start.column() as usize)
5218 - layout.position_map.scroll_pixel_position.x
5219 } else {
5220 layout.content_origin.x
5221 - layout.position_map.scroll_pixel_position.x
5222 },
5223 end_x: if row == range.end.row() {
5224 layout.content_origin.x
5225 + line_layout.x_for_index(range.end.column() as usize)
5226 - layout.position_map.scroll_pixel_position.x
5227 } else {
5228 layout.content_origin.x + line_layout.width + line_end_overshoot
5229 - layout.position_map.scroll_pixel_position.x
5230 },
5231 }
5232 })
5233 .collect(),
5234 };
5235
5236 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5237 }
5238 }
5239
5240 fn paint_inline_diagnostics(
5241 &mut self,
5242 layout: &mut EditorLayout,
5243 window: &mut Window,
5244 cx: &mut App,
5245 ) {
5246 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5247 inline_diagnostic.1.paint(window, cx);
5248 }
5249 }
5250
5251 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5252 if let Some(mut inline_blame) = layout.inline_blame.take() {
5253 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5254 inline_blame.paint(window, cx);
5255 })
5256 }
5257 }
5258
5259 fn paint_diff_hunk_controls(
5260 &mut self,
5261 layout: &mut EditorLayout,
5262 window: &mut Window,
5263 cx: &mut App,
5264 ) {
5265 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5266 diff_hunk_control.paint(window, cx);
5267 }
5268 }
5269
5270 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5271 for mut block in layout.blocks.drain(..) {
5272 block.element.paint(window, cx);
5273 }
5274 }
5275
5276 fn paint_inline_completion_popover(
5277 &mut self,
5278 layout: &mut EditorLayout,
5279 window: &mut Window,
5280 cx: &mut App,
5281 ) {
5282 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5283 inline_completion_popover.paint(window, cx);
5284 }
5285 }
5286
5287 fn paint_mouse_context_menu(
5288 &mut self,
5289 layout: &mut EditorLayout,
5290 window: &mut Window,
5291 cx: &mut App,
5292 ) {
5293 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5294 mouse_context_menu.paint(window, cx);
5295 }
5296 }
5297
5298 fn paint_scroll_wheel_listener(
5299 &mut self,
5300 layout: &EditorLayout,
5301 window: &mut Window,
5302 cx: &mut App,
5303 ) {
5304 window.on_mouse_event({
5305 let position_map = layout.position_map.clone();
5306 let editor = self.editor.clone();
5307 let hitbox = layout.hitbox.clone();
5308 let mut delta = ScrollDelta::default();
5309
5310 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5311 // accidentally turn off their scrolling.
5312 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5313
5314 move |event: &ScrollWheelEvent, phase, window, cx| {
5315 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5316 delta = delta.coalesce(event.delta);
5317 editor.update(cx, |editor, cx| {
5318 let position_map: &PositionMap = &position_map;
5319
5320 let line_height = position_map.line_height;
5321 let max_glyph_width = position_map.em_width;
5322 let (delta, axis) = match delta {
5323 gpui::ScrollDelta::Pixels(mut pixels) => {
5324 //Trackpad
5325 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5326 (pixels, axis)
5327 }
5328
5329 gpui::ScrollDelta::Lines(lines) => {
5330 //Not trackpad
5331 let pixels =
5332 point(lines.x * max_glyph_width, lines.y * line_height);
5333 (pixels, None)
5334 }
5335 };
5336
5337 let current_scroll_position = position_map.snapshot.scroll_position();
5338 let x = (current_scroll_position.x * max_glyph_width
5339 - (delta.x * scroll_sensitivity))
5340 / max_glyph_width;
5341 let y = (current_scroll_position.y * line_height
5342 - (delta.y * scroll_sensitivity))
5343 / line_height;
5344 let mut scroll_position =
5345 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5346 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5347 if forbid_vertical_scroll {
5348 scroll_position.y = current_scroll_position.y;
5349 }
5350
5351 if scroll_position != current_scroll_position {
5352 editor.scroll(scroll_position, axis, window, cx);
5353 cx.stop_propagation();
5354 } else if y < 0. {
5355 // Due to clamping, we may fail to detect cases of overscroll to the top;
5356 // We want the scroll manager to get an update in such cases and detect the change of direction
5357 // on the next frame.
5358 cx.notify();
5359 }
5360 });
5361 }
5362 }
5363 });
5364 }
5365
5366 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5367 self.paint_scroll_wheel_listener(layout, window, cx);
5368
5369 window.on_mouse_event({
5370 let position_map = layout.position_map.clone();
5371 let editor = self.editor.clone();
5372 let diff_hunk_range =
5373 layout
5374 .display_hunks
5375 .iter()
5376 .find_map(|(hunk, hunk_hitbox)| match hunk {
5377 DisplayDiffHunk::Folded { .. } => None,
5378 DisplayDiffHunk::Unfolded {
5379 multi_buffer_range, ..
5380 } => {
5381 if hunk_hitbox
5382 .as_ref()
5383 .map(|hitbox| hitbox.is_hovered(window))
5384 .unwrap_or(false)
5385 {
5386 Some(multi_buffer_range.clone())
5387 } else {
5388 None
5389 }
5390 }
5391 });
5392 let line_numbers = layout.line_numbers.clone();
5393
5394 move |event: &MouseDownEvent, phase, window, cx| {
5395 if phase == DispatchPhase::Bubble {
5396 match event.button {
5397 MouseButton::Left => editor.update(cx, |editor, cx| {
5398 let pending_mouse_down = editor
5399 .pending_mouse_down
5400 .get_or_insert_with(Default::default)
5401 .clone();
5402
5403 *pending_mouse_down.borrow_mut() = Some(event.clone());
5404
5405 Self::mouse_left_down(
5406 editor,
5407 event,
5408 diff_hunk_range.clone(),
5409 &position_map,
5410 line_numbers.as_ref(),
5411 window,
5412 cx,
5413 );
5414 }),
5415 MouseButton::Right => editor.update(cx, |editor, cx| {
5416 Self::mouse_right_down(editor, event, &position_map, window, cx);
5417 }),
5418 MouseButton::Middle => editor.update(cx, |editor, cx| {
5419 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5420 }),
5421 _ => {}
5422 };
5423 }
5424 }
5425 });
5426
5427 window.on_mouse_event({
5428 let editor = self.editor.clone();
5429 let position_map = layout.position_map.clone();
5430
5431 move |event: &MouseUpEvent, phase, window, cx| {
5432 if phase == DispatchPhase::Bubble {
5433 editor.update(cx, |editor, cx| {
5434 Self::mouse_up(editor, event, &position_map, window, cx)
5435 });
5436 }
5437 }
5438 });
5439
5440 window.on_mouse_event({
5441 let editor = self.editor.clone();
5442 let position_map = layout.position_map.clone();
5443 let mut captured_mouse_down = None;
5444
5445 move |event: &MouseUpEvent, phase, window, cx| match phase {
5446 // Clear the pending mouse down during the capture phase,
5447 // so that it happens even if another event handler stops
5448 // propagation.
5449 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5450 let pending_mouse_down = editor
5451 .pending_mouse_down
5452 .get_or_insert_with(Default::default)
5453 .clone();
5454
5455 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5456 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5457 captured_mouse_down = pending_mouse_down.take();
5458 window.refresh();
5459 }
5460 }),
5461 // Fire click handlers during the bubble phase.
5462 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5463 if let Some(mouse_down) = captured_mouse_down.take() {
5464 let event = ClickEvent {
5465 down: mouse_down,
5466 up: event.clone(),
5467 };
5468 Self::click(editor, &event, &position_map, window, cx);
5469 }
5470 }),
5471 }
5472 });
5473
5474 window.on_mouse_event({
5475 let position_map = layout.position_map.clone();
5476 let editor = self.editor.clone();
5477
5478 move |event: &MouseMoveEvent, phase, window, cx| {
5479 if phase == DispatchPhase::Bubble {
5480 editor.update(cx, |editor, cx| {
5481 if editor.hover_state.focused(window, cx) {
5482 return;
5483 }
5484 if event.pressed_button == Some(MouseButton::Left)
5485 || event.pressed_button == Some(MouseButton::Middle)
5486 {
5487 Self::mouse_dragged(editor, event, &position_map, window, cx)
5488 }
5489
5490 Self::mouse_moved(editor, event, &position_map, window, cx)
5491 });
5492 }
5493 }
5494 });
5495 }
5496
5497 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5498 bounds.top_right().x - self.style.scrollbar_width
5499 }
5500
5501 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5502 let style = &self.style;
5503 let font_size = style.text.font_size.to_pixels(window.rem_size());
5504 let layout = window
5505 .text_system()
5506 .shape_line(
5507 SharedString::from(" ".repeat(column)),
5508 font_size,
5509 &[TextRun {
5510 len: column,
5511 font: style.text.font(),
5512 color: Hsla::default(),
5513 background_color: None,
5514 underline: None,
5515 strikethrough: None,
5516 }],
5517 )
5518 .unwrap();
5519
5520 layout.width
5521 }
5522
5523 fn max_line_number_width(
5524 &self,
5525 snapshot: &EditorSnapshot,
5526 window: &mut Window,
5527 cx: &mut App,
5528 ) -> Pixels {
5529 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5530 self.column_pixels(digit_count as usize, window, cx)
5531 }
5532
5533 fn shape_line_number(
5534 &self,
5535 text: SharedString,
5536 color: Hsla,
5537 window: &mut Window,
5538 ) -> anyhow::Result<ShapedLine> {
5539 let run = TextRun {
5540 len: text.len(),
5541 font: self.style.text.font(),
5542 color,
5543 background_color: None,
5544 underline: None,
5545 strikethrough: None,
5546 };
5547 window.text_system().shape_line(
5548 text,
5549 self.style.text.font_size.to_pixels(window.rem_size()),
5550 &[run],
5551 )
5552 }
5553
5554 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5555 let unstaged = status.has_secondary_hunk();
5556 let unstaged_hollow = ProjectSettings::get_global(cx)
5557 .git
5558 .hunk_style
5559 .map_or(false, |style| {
5560 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5561 });
5562
5563 unstaged == unstaged_hollow
5564 }
5565}
5566
5567fn header_jump_data(
5568 snapshot: &EditorSnapshot,
5569 block_row_start: DisplayRow,
5570 height: u32,
5571 for_excerpt: &ExcerptInfo,
5572) -> JumpData {
5573 let range = &for_excerpt.range;
5574 let buffer = &for_excerpt.buffer;
5575 let jump_anchor = range
5576 .primary
5577 .as_ref()
5578 .map_or(range.context.start, |primary| primary.start);
5579
5580 let excerpt_start = range.context.start;
5581 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5582 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5583 0
5584 } else {
5585 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5586 jump_position.row.saturating_sub(excerpt_start_point.row)
5587 };
5588
5589 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5590 .saturating_sub(
5591 snapshot
5592 .scroll_anchor
5593 .scroll_position(&snapshot.display_snapshot)
5594 .y as u32,
5595 );
5596
5597 JumpData::MultiBufferPoint {
5598 excerpt_id: for_excerpt.id,
5599 anchor: jump_anchor,
5600 position: jump_position,
5601 line_offset_from_top,
5602 }
5603}
5604
5605pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5606
5607impl AcceptEditPredictionBinding {
5608 pub fn keystroke(&self) -> Option<&Keystroke> {
5609 if let Some(binding) = self.0.as_ref() {
5610 match &binding.keystrokes() {
5611 [keystroke] => Some(keystroke),
5612 _ => None,
5613 }
5614 } else {
5615 None
5616 }
5617 }
5618}
5619
5620fn prepaint_gutter_button(
5621 button: IconButton,
5622 row: DisplayRow,
5623 line_height: Pixels,
5624 gutter_dimensions: &GutterDimensions,
5625 scroll_pixel_position: gpui::Point<Pixels>,
5626 gutter_hitbox: &Hitbox,
5627 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5628 window: &mut Window,
5629 cx: &mut App,
5630) -> AnyElement {
5631 let mut button = button.into_any_element();
5632
5633 let available_space = size(
5634 AvailableSpace::MinContent,
5635 AvailableSpace::Definite(line_height),
5636 );
5637 let indicator_size = button.layout_as_root(available_space, window, cx);
5638
5639 let blame_width = gutter_dimensions.git_blame_entries_width;
5640 let gutter_width = display_hunks
5641 .binary_search_by(|(hunk, _)| match hunk {
5642 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5643 DisplayDiffHunk::Unfolded {
5644 display_row_range, ..
5645 } => {
5646 if display_row_range.end <= row {
5647 Ordering::Less
5648 } else if display_row_range.start > row {
5649 Ordering::Greater
5650 } else {
5651 Ordering::Equal
5652 }
5653 }
5654 })
5655 .ok()
5656 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5657 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5658
5659 let mut x = left_offset;
5660 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5661 - indicator_size.width
5662 - left_offset;
5663 x += available_width / 2.;
5664
5665 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5666 y += (line_height - indicator_size.height) / 2.;
5667
5668 button.prepaint_as_root(
5669 gutter_hitbox.origin + point(x, y),
5670 available_space,
5671 window,
5672 cx,
5673 );
5674 button
5675}
5676
5677fn render_inline_blame_entry(
5678 editor: Entity<Editor>,
5679 blame: &gpui::Entity<GitBlame>,
5680 blame_entry: BlameEntry,
5681 style: &EditorStyle,
5682 cx: &mut App,
5683) -> AnyElement {
5684 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5685
5686 let author = blame_entry.author.as_deref().unwrap_or_default();
5687 let summary_enabled = ProjectSettings::get_global(cx)
5688 .git
5689 .show_inline_commit_summary();
5690
5691 let text = match blame_entry.summary.as_ref() {
5692 Some(summary) if summary_enabled => {
5693 format!("{}, {} - {}", author, relative_timestamp, summary)
5694 }
5695 _ => format!("{}, {}", author, relative_timestamp),
5696 };
5697 let blame = blame.clone();
5698 let blame_entry = blame_entry.clone();
5699
5700 h_flex()
5701 .id("inline-blame")
5702 .w_full()
5703 .font_family(style.text.font().family)
5704 .text_color(cx.theme().status().hint)
5705 .line_height(style.text.line_height)
5706 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5707 .child(text)
5708 .gap_2()
5709 .hoverable_tooltip(move |window, cx| {
5710 let details = blame.read(cx).details_for_entry(&blame_entry);
5711 let tooltip =
5712 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5713 editor.update(cx, |editor, _| {
5714 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5715 });
5716 tooltip.into()
5717 })
5718 .into_any()
5719}
5720
5721fn render_blame_entry(
5722 ix: usize,
5723 blame: &gpui::Entity<GitBlame>,
5724 blame_entry: BlameEntry,
5725 style: &EditorStyle,
5726 last_used_color: &mut Option<(PlayerColor, Oid)>,
5727 editor: Entity<Editor>,
5728 cx: &mut App,
5729) -> AnyElement {
5730 let mut sha_color = cx
5731 .theme()
5732 .players()
5733 .color_for_participant(blame_entry.sha.into());
5734 // If the last color we used is the same as the one we get for this line, but
5735 // the commit SHAs are different, then we try again to get a different color.
5736 match *last_used_color {
5737 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5738 let index: u32 = blame_entry.sha.into();
5739 sha_color = cx.theme().players().color_for_participant(index + 1);
5740 }
5741 _ => {}
5742 };
5743 last_used_color.replace((sha_color, blame_entry.sha));
5744
5745 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5746
5747 let short_commit_id = blame_entry.sha.display_short();
5748
5749 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5750 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5751 let details = blame.read(cx).details_for_entry(&blame_entry);
5752
5753 h_flex()
5754 .w_full()
5755 .justify_between()
5756 .font_family(style.text.font().family)
5757 .line_height(style.text.line_height)
5758 .id(("blame", ix))
5759 .text_color(cx.theme().status().hint)
5760 .pr_2()
5761 .gap_2()
5762 .child(
5763 h_flex()
5764 .items_center()
5765 .gap_2()
5766 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5767 .child(name),
5768 )
5769 .child(relative_timestamp)
5770 .on_mouse_down(MouseButton::Right, {
5771 let blame_entry = blame_entry.clone();
5772 let details = details.clone();
5773 move |event, window, cx| {
5774 deploy_blame_entry_context_menu(
5775 &blame_entry,
5776 details.as_ref(),
5777 editor.clone(),
5778 event.position,
5779 window,
5780 cx,
5781 );
5782 }
5783 })
5784 .hover(|style| style.bg(cx.theme().colors().element_hover))
5785 .when_some(
5786 details
5787 .as_ref()
5788 .and_then(|details| details.permalink.clone()),
5789 |this, url| {
5790 this.cursor_pointer().on_click(move |_, _, cx| {
5791 cx.stop_propagation();
5792 cx.open_url(url.as_str())
5793 })
5794 },
5795 )
5796 .hoverable_tooltip(move |window, cx| {
5797 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5798 .into()
5799 })
5800 .into_any()
5801}
5802
5803fn deploy_blame_entry_context_menu(
5804 blame_entry: &BlameEntry,
5805 details: Option<&ParsedCommitMessage>,
5806 editor: Entity<Editor>,
5807 position: gpui::Point<Pixels>,
5808 window: &mut Window,
5809 cx: &mut App,
5810) {
5811 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5812 let sha = format!("{}", blame_entry.sha);
5813 menu.on_blur_subscription(Subscription::new(|| {}))
5814 .entry("Copy commit SHA", None, move |_, cx| {
5815 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5816 })
5817 .when_some(
5818 details.and_then(|details| details.permalink.clone()),
5819 |this, url| {
5820 this.entry("Open permalink", None, move |_, cx| {
5821 cx.open_url(url.as_str())
5822 })
5823 },
5824 )
5825 });
5826
5827 editor.update(cx, move |editor, cx| {
5828 editor.mouse_context_menu = Some(MouseContextMenu::new(
5829 MenuPosition::PinnedToScreen(position),
5830 context_menu,
5831 window,
5832 cx,
5833 ));
5834 cx.notify();
5835 });
5836}
5837
5838#[derive(Debug)]
5839pub(crate) struct LineWithInvisibles {
5840 fragments: SmallVec<[LineFragment; 1]>,
5841 invisibles: Vec<Invisible>,
5842 len: usize,
5843 pub(crate) width: Pixels,
5844 font_size: Pixels,
5845}
5846
5847#[allow(clippy::large_enum_variant)]
5848enum LineFragment {
5849 Text(ShapedLine),
5850 Element {
5851 element: Option<AnyElement>,
5852 size: Size<Pixels>,
5853 len: usize,
5854 },
5855}
5856
5857impl fmt::Debug for LineFragment {
5858 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5859 match self {
5860 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5861 LineFragment::Element { size, len, .. } => f
5862 .debug_struct("Element")
5863 .field("size", size)
5864 .field("len", len)
5865 .finish(),
5866 }
5867 }
5868}
5869
5870impl LineWithInvisibles {
5871 fn from_chunks<'a>(
5872 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5873 editor_style: &EditorStyle,
5874 max_line_len: usize,
5875 max_line_count: usize,
5876 editor_mode: EditorMode,
5877 text_width: Pixels,
5878 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5879 window: &mut Window,
5880 cx: &mut App,
5881 ) -> Vec<Self> {
5882 let text_style = &editor_style.text;
5883 let mut layouts = Vec::with_capacity(max_line_count);
5884 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5885 let mut line = String::new();
5886 let mut invisibles = Vec::new();
5887 let mut width = Pixels::ZERO;
5888 let mut len = 0;
5889 let mut styles = Vec::new();
5890 let mut non_whitespace_added = false;
5891 let mut row = 0;
5892 let mut line_exceeded_max_len = false;
5893 let font_size = text_style.font_size.to_pixels(window.rem_size());
5894
5895 let ellipsis = SharedString::from("⋯");
5896
5897 for highlighted_chunk in chunks.chain([HighlightedChunk {
5898 text: "\n",
5899 style: None,
5900 is_tab: false,
5901 replacement: None,
5902 }]) {
5903 if let Some(replacement) = highlighted_chunk.replacement {
5904 if !line.is_empty() {
5905 let shaped_line = window
5906 .text_system()
5907 .shape_line(line.clone().into(), font_size, &styles)
5908 .unwrap();
5909 width += shaped_line.width;
5910 len += shaped_line.len;
5911 fragments.push(LineFragment::Text(shaped_line));
5912 line.clear();
5913 styles.clear();
5914 }
5915
5916 match replacement {
5917 ChunkReplacement::Renderer(renderer) => {
5918 let available_width = if renderer.constrain_width {
5919 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5920 ellipsis.clone()
5921 } else {
5922 SharedString::from(Arc::from(highlighted_chunk.text))
5923 };
5924 let shaped_line = window
5925 .text_system()
5926 .shape_line(
5927 chunk,
5928 font_size,
5929 &[text_style.to_run(highlighted_chunk.text.len())],
5930 )
5931 .unwrap();
5932 AvailableSpace::Definite(shaped_line.width)
5933 } else {
5934 AvailableSpace::MinContent
5935 };
5936
5937 let mut element = (renderer.render)(&mut ChunkRendererContext {
5938 context: cx,
5939 window,
5940 max_width: text_width,
5941 });
5942 let line_height = text_style.line_height_in_pixels(window.rem_size());
5943 let size = element.layout_as_root(
5944 size(available_width, AvailableSpace::Definite(line_height)),
5945 window,
5946 cx,
5947 );
5948
5949 width += size.width;
5950 len += highlighted_chunk.text.len();
5951 fragments.push(LineFragment::Element {
5952 element: Some(element),
5953 size,
5954 len: highlighted_chunk.text.len(),
5955 });
5956 }
5957 ChunkReplacement::Str(x) => {
5958 let text_style = if let Some(style) = highlighted_chunk.style {
5959 Cow::Owned(text_style.clone().highlight(style))
5960 } else {
5961 Cow::Borrowed(text_style)
5962 };
5963
5964 let run = TextRun {
5965 len: x.len(),
5966 font: text_style.font(),
5967 color: text_style.color,
5968 background_color: text_style.background_color,
5969 underline: text_style.underline,
5970 strikethrough: text_style.strikethrough,
5971 };
5972 let line_layout = window
5973 .text_system()
5974 .shape_line(x, font_size, &[run])
5975 .unwrap()
5976 .with_len(highlighted_chunk.text.len());
5977
5978 width += line_layout.width;
5979 len += highlighted_chunk.text.len();
5980 fragments.push(LineFragment::Text(line_layout))
5981 }
5982 }
5983 } else {
5984 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
5985 if ix > 0 {
5986 let shaped_line = window
5987 .text_system()
5988 .shape_line(line.clone().into(), font_size, &styles)
5989 .unwrap();
5990 width += shaped_line.width;
5991 len += shaped_line.len;
5992 fragments.push(LineFragment::Text(shaped_line));
5993 layouts.push(Self {
5994 width: mem::take(&mut width),
5995 len: mem::take(&mut len),
5996 fragments: mem::take(&mut fragments),
5997 invisibles: std::mem::take(&mut invisibles),
5998 font_size,
5999 });
6000
6001 line.clear();
6002 styles.clear();
6003 row += 1;
6004 line_exceeded_max_len = false;
6005 non_whitespace_added = false;
6006 if row == max_line_count {
6007 return layouts;
6008 }
6009 }
6010
6011 if !line_chunk.is_empty() && !line_exceeded_max_len {
6012 let text_style = if let Some(style) = highlighted_chunk.style {
6013 Cow::Owned(text_style.clone().highlight(style))
6014 } else {
6015 Cow::Borrowed(text_style)
6016 };
6017
6018 if line.len() + line_chunk.len() > max_line_len {
6019 let mut chunk_len = max_line_len - line.len();
6020 while !line_chunk.is_char_boundary(chunk_len) {
6021 chunk_len -= 1;
6022 }
6023 line_chunk = &line_chunk[..chunk_len];
6024 line_exceeded_max_len = true;
6025 }
6026
6027 styles.push(TextRun {
6028 len: line_chunk.len(),
6029 font: text_style.font(),
6030 color: text_style.color,
6031 background_color: text_style.background_color,
6032 underline: text_style.underline,
6033 strikethrough: text_style.strikethrough,
6034 });
6035
6036 if editor_mode == EditorMode::Full {
6037 // Line wrap pads its contents with fake whitespaces,
6038 // avoid printing them
6039 let is_soft_wrapped = is_row_soft_wrapped(row);
6040 if highlighted_chunk.is_tab {
6041 if non_whitespace_added || !is_soft_wrapped {
6042 invisibles.push(Invisible::Tab {
6043 line_start_offset: line.len(),
6044 line_end_offset: line.len() + line_chunk.len(),
6045 });
6046 }
6047 } else {
6048 invisibles.extend(line_chunk.char_indices().filter_map(
6049 |(index, c)| {
6050 let is_whitespace = c.is_whitespace();
6051 non_whitespace_added |= !is_whitespace;
6052 if is_whitespace
6053 && (non_whitespace_added || !is_soft_wrapped)
6054 {
6055 Some(Invisible::Whitespace {
6056 line_offset: line.len() + index,
6057 })
6058 } else {
6059 None
6060 }
6061 },
6062 ))
6063 }
6064 }
6065
6066 line.push_str(line_chunk);
6067 }
6068 }
6069 }
6070 }
6071
6072 layouts
6073 }
6074
6075 fn prepaint(
6076 &mut self,
6077 line_height: Pixels,
6078 scroll_pixel_position: gpui::Point<Pixels>,
6079 row: DisplayRow,
6080 content_origin: gpui::Point<Pixels>,
6081 line_elements: &mut SmallVec<[AnyElement; 1]>,
6082 window: &mut Window,
6083 cx: &mut App,
6084 ) {
6085 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6086 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6087 for fragment in &mut self.fragments {
6088 match fragment {
6089 LineFragment::Text(line) => {
6090 fragment_origin.x += line.width;
6091 }
6092 LineFragment::Element { element, size, .. } => {
6093 let mut element = element
6094 .take()
6095 .expect("you can't prepaint LineWithInvisibles twice");
6096
6097 // Center the element vertically within the line.
6098 let mut element_origin = fragment_origin;
6099 element_origin.y += (line_height - size.height) / 2.;
6100 element.prepaint_at(element_origin, window, cx);
6101 line_elements.push(element);
6102
6103 fragment_origin.x += size.width;
6104 }
6105 }
6106 }
6107 }
6108
6109 fn draw(
6110 &self,
6111 layout: &EditorLayout,
6112 row: DisplayRow,
6113 content_origin: gpui::Point<Pixels>,
6114 whitespace_setting: ShowWhitespaceSetting,
6115 selection_ranges: &[Range<DisplayPoint>],
6116 window: &mut Window,
6117 cx: &mut App,
6118 ) {
6119 let line_height = layout.position_map.line_height;
6120 let line_y = line_height
6121 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6122
6123 let mut fragment_origin =
6124 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6125
6126 for fragment in &self.fragments {
6127 match fragment {
6128 LineFragment::Text(line) => {
6129 line.paint(fragment_origin, line_height, window, cx)
6130 .log_err();
6131 fragment_origin.x += line.width;
6132 }
6133 LineFragment::Element { size, .. } => {
6134 fragment_origin.x += size.width;
6135 }
6136 }
6137 }
6138
6139 self.draw_invisibles(
6140 selection_ranges,
6141 layout,
6142 content_origin,
6143 line_y,
6144 row,
6145 line_height,
6146 whitespace_setting,
6147 window,
6148 cx,
6149 );
6150 }
6151
6152 fn draw_background(
6153 &self,
6154 layout: &EditorLayout,
6155 row: DisplayRow,
6156 content_origin: gpui::Point<Pixels>,
6157 window: &mut Window,
6158 cx: &mut App,
6159 ) {
6160 let line_height = layout.position_map.line_height;
6161 let line_y = line_height
6162 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6163
6164 let mut fragment_origin =
6165 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6166
6167 for fragment in &self.fragments {
6168 match fragment {
6169 LineFragment::Text(line) => {
6170 line.paint_background(fragment_origin, line_height, window, cx)
6171 .log_err();
6172 fragment_origin.x += line.width;
6173 }
6174 LineFragment::Element { size, .. } => {
6175 fragment_origin.x += size.width;
6176 }
6177 }
6178 }
6179 }
6180
6181 fn draw_invisibles(
6182 &self,
6183 selection_ranges: &[Range<DisplayPoint>],
6184 layout: &EditorLayout,
6185 content_origin: gpui::Point<Pixels>,
6186 line_y: Pixels,
6187 row: DisplayRow,
6188 line_height: Pixels,
6189 whitespace_setting: ShowWhitespaceSetting,
6190 window: &mut Window,
6191 cx: &mut App,
6192 ) {
6193 let extract_whitespace_info = |invisible: &Invisible| {
6194 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6195 Invisible::Tab {
6196 line_start_offset,
6197 line_end_offset,
6198 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6199 Invisible::Whitespace { line_offset } => {
6200 (*line_offset, line_offset + 1, &layout.space_invisible)
6201 }
6202 };
6203
6204 let x_offset = self.x_for_index(token_offset);
6205 let invisible_offset =
6206 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6207 let origin = content_origin
6208 + gpui::point(
6209 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6210 line_y,
6211 );
6212
6213 (
6214 [token_offset, token_end_offset],
6215 Box::new(move |window: &mut Window, cx: &mut App| {
6216 invisible_symbol
6217 .paint(origin, line_height, window, cx)
6218 .log_err();
6219 }),
6220 )
6221 };
6222
6223 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6224 match whitespace_setting {
6225 ShowWhitespaceSetting::None => (),
6226 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6227 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6228 let invisible_point = DisplayPoint::new(row, start as u32);
6229 if !selection_ranges
6230 .iter()
6231 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6232 {
6233 return;
6234 }
6235
6236 paint(window, cx);
6237 }),
6238
6239 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6240 // - It is a tab
6241 // - It is adjacent to an edge (start or end)
6242 // - It is adjacent to a whitespace (left or right)
6243 ShowWhitespaceSetting::Boundary => {
6244 // 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
6245 // the above cases.
6246 // Note: We zip in the original `invisibles` to check for tab equality
6247 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6248 for (([start, end], paint), invisible) in
6249 invisible_iter.zip_eq(self.invisibles.iter())
6250 {
6251 let should_render = match (&last_seen, invisible) {
6252 (_, Invisible::Tab { .. }) => true,
6253 (Some((_, last_end, _)), _) => *last_end == start,
6254 _ => false,
6255 };
6256
6257 if should_render || start == 0 || end == self.len {
6258 paint(window, cx);
6259
6260 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6261 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6262 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6263 // Note that we need to make sure that the last one is actually adjacent
6264 if !should_render_last && last_end == start {
6265 paint_last(window, cx);
6266 }
6267 }
6268 }
6269
6270 // Manually render anything within a selection
6271 let invisible_point = DisplayPoint::new(row, start as u32);
6272 if selection_ranges.iter().any(|region| {
6273 region.start <= invisible_point && invisible_point < region.end
6274 }) {
6275 paint(window, cx);
6276 }
6277
6278 last_seen = Some((should_render, end, paint));
6279 }
6280 }
6281 }
6282 }
6283
6284 pub fn x_for_index(&self, index: usize) -> Pixels {
6285 let mut fragment_start_x = Pixels::ZERO;
6286 let mut fragment_start_index = 0;
6287
6288 for fragment in &self.fragments {
6289 match fragment {
6290 LineFragment::Text(shaped_line) => {
6291 let fragment_end_index = fragment_start_index + shaped_line.len;
6292 if index < fragment_end_index {
6293 return fragment_start_x
6294 + shaped_line.x_for_index(index - fragment_start_index);
6295 }
6296 fragment_start_x += shaped_line.width;
6297 fragment_start_index = fragment_end_index;
6298 }
6299 LineFragment::Element { len, size, .. } => {
6300 let fragment_end_index = fragment_start_index + len;
6301 if index < fragment_end_index {
6302 return fragment_start_x;
6303 }
6304 fragment_start_x += size.width;
6305 fragment_start_index = fragment_end_index;
6306 }
6307 }
6308 }
6309
6310 fragment_start_x
6311 }
6312
6313 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6314 let mut fragment_start_x = Pixels::ZERO;
6315 let mut fragment_start_index = 0;
6316
6317 for fragment in &self.fragments {
6318 match fragment {
6319 LineFragment::Text(shaped_line) => {
6320 let fragment_end_x = fragment_start_x + shaped_line.width;
6321 if x < fragment_end_x {
6322 return Some(
6323 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6324 );
6325 }
6326 fragment_start_x = fragment_end_x;
6327 fragment_start_index += shaped_line.len;
6328 }
6329 LineFragment::Element { len, size, .. } => {
6330 let fragment_end_x = fragment_start_x + size.width;
6331 if x < fragment_end_x {
6332 return Some(fragment_start_index);
6333 }
6334 fragment_start_index += len;
6335 fragment_start_x = fragment_end_x;
6336 }
6337 }
6338 }
6339
6340 None
6341 }
6342
6343 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
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 shaped_line.font_id_for_index(index - fragment_start_index);
6352 }
6353 fragment_start_index = fragment_end_index;
6354 }
6355 LineFragment::Element { len, .. } => {
6356 let fragment_end_index = fragment_start_index + len;
6357 if index < fragment_end_index {
6358 return None;
6359 }
6360 fragment_start_index = fragment_end_index;
6361 }
6362 }
6363 }
6364
6365 None
6366 }
6367}
6368
6369#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6370enum Invisible {
6371 /// A tab character
6372 ///
6373 /// A tab character is internally represented by spaces (configured by the user's tab width)
6374 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6375 /// adjacency checks.
6376 Tab {
6377 line_start_offset: usize,
6378 line_end_offset: usize,
6379 },
6380 Whitespace {
6381 line_offset: usize,
6382 },
6383}
6384
6385impl EditorElement {
6386 /// Returns the rem size to use when rendering the [`EditorElement`].
6387 ///
6388 /// This allows UI elements to scale based on the `buffer_font_size`.
6389 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6390 match self.editor.read(cx).mode {
6391 EditorMode::Full => {
6392 let buffer_font_size = self.style.text.font_size;
6393 match buffer_font_size {
6394 AbsoluteLength::Pixels(pixels) => {
6395 let rem_size_scale = {
6396 // Our default UI font size is 14px on a 16px base scale.
6397 // This means the default UI font size is 0.875rems.
6398 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6399
6400 // We then determine the delta between a single rem and the default font
6401 // size scale.
6402 let default_font_size_delta = 1. - default_font_size_scale;
6403
6404 // Finally, we add this delta to 1rem to get the scale factor that
6405 // should be used to scale up the UI.
6406 1. + default_font_size_delta
6407 };
6408
6409 Some(pixels * rem_size_scale)
6410 }
6411 AbsoluteLength::Rems(rems) => {
6412 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6413 }
6414 }
6415 }
6416 // We currently use single-line and auto-height editors in UI contexts,
6417 // so we don't want to scale everything with the buffer font size, as it
6418 // ends up looking off.
6419 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6420 }
6421 }
6422}
6423
6424impl Element for EditorElement {
6425 type RequestLayoutState = ();
6426 type PrepaintState = EditorLayout;
6427
6428 fn id(&self) -> Option<ElementId> {
6429 None
6430 }
6431
6432 fn request_layout(
6433 &mut self,
6434 _: Option<&GlobalElementId>,
6435 window: &mut Window,
6436 cx: &mut App,
6437 ) -> (gpui::LayoutId, ()) {
6438 let rem_size = self.rem_size(cx);
6439 window.with_rem_size(rem_size, |window| {
6440 self.editor.update(cx, |editor, cx| {
6441 editor.set_style(self.style.clone(), window, cx);
6442
6443 let layout_id = match editor.mode {
6444 EditorMode::SingleLine { auto_width } => {
6445 let rem_size = window.rem_size();
6446
6447 let height = self.style.text.line_height_in_pixels(rem_size);
6448 if auto_width {
6449 let editor_handle = cx.entity().clone();
6450 let style = self.style.clone();
6451 window.request_measured_layout(
6452 Style::default(),
6453 move |_, _, window, cx| {
6454 let editor_snapshot = editor_handle
6455 .update(cx, |editor, cx| editor.snapshot(window, cx));
6456 let line = Self::layout_lines(
6457 DisplayRow(0)..DisplayRow(1),
6458 &editor_snapshot,
6459 &style,
6460 px(f32::MAX),
6461 |_| false, // Single lines never soft wrap
6462 window,
6463 cx,
6464 )
6465 .pop()
6466 .unwrap();
6467
6468 let font_id =
6469 window.text_system().resolve_font(&style.text.font());
6470 let font_size =
6471 style.text.font_size.to_pixels(window.rem_size());
6472 let em_width =
6473 window.text_system().em_width(font_id, font_size).unwrap();
6474
6475 size(line.width + em_width, height)
6476 },
6477 )
6478 } else {
6479 let mut style = Style::default();
6480 style.size.height = height.into();
6481 style.size.width = relative(1.).into();
6482 window.request_layout(style, None, cx)
6483 }
6484 }
6485 EditorMode::AutoHeight { max_lines } => {
6486 let editor_handle = cx.entity().clone();
6487 let max_line_number_width =
6488 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6489 window.request_measured_layout(
6490 Style::default(),
6491 move |known_dimensions, available_space, window, cx| {
6492 editor_handle
6493 .update(cx, |editor, cx| {
6494 compute_auto_height_layout(
6495 editor,
6496 max_lines,
6497 max_line_number_width,
6498 known_dimensions,
6499 available_space.width,
6500 window,
6501 cx,
6502 )
6503 })
6504 .unwrap_or_default()
6505 },
6506 )
6507 }
6508 EditorMode::Full => {
6509 let mut style = Style::default();
6510 style.size.width = relative(1.).into();
6511 style.size.height = relative(1.).into();
6512 window.request_layout(style, None, cx)
6513 }
6514 };
6515
6516 (layout_id, ())
6517 })
6518 })
6519 }
6520
6521 fn prepaint(
6522 &mut self,
6523 _: Option<&GlobalElementId>,
6524 bounds: Bounds<Pixels>,
6525 _: &mut Self::RequestLayoutState,
6526 window: &mut Window,
6527 cx: &mut App,
6528 ) -> Self::PrepaintState {
6529 let text_style = TextStyleRefinement {
6530 font_size: Some(self.style.text.font_size),
6531 line_height: Some(self.style.text.line_height),
6532 ..Default::default()
6533 };
6534 let focus_handle = self.editor.focus_handle(cx);
6535 window.set_view_id(self.editor.entity_id());
6536 window.set_focus_handle(&focus_handle, cx);
6537
6538 let rem_size = self.rem_size(cx);
6539 window.with_rem_size(rem_size, |window| {
6540 window.with_text_style(Some(text_style), |window| {
6541 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6542 let mut snapshot = self
6543 .editor
6544 .update(cx, |editor, cx| editor.snapshot(window, cx));
6545 let style = self.style.clone();
6546
6547 let font_id = window.text_system().resolve_font(&style.text.font());
6548 let font_size = style.text.font_size.to_pixels(window.rem_size());
6549 let line_height = style.text.line_height_in_pixels(window.rem_size());
6550 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6551 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6552
6553 let glyph_grid_cell = size(em_width, line_height);
6554
6555 let gutter_dimensions = snapshot
6556 .gutter_dimensions(
6557 font_id,
6558 font_size,
6559 self.max_line_number_width(&snapshot, window, cx),
6560 cx,
6561 )
6562 .unwrap_or_default();
6563 let text_width = bounds.size.width - gutter_dimensions.width;
6564
6565 let editor_width =
6566 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6567
6568 snapshot = self.editor.update(cx, |editor, cx| {
6569 editor.last_bounds = Some(bounds);
6570 editor.gutter_dimensions = gutter_dimensions;
6571 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6572
6573 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6574 snapshot
6575 } else {
6576 let wrap_width = match editor.soft_wrap_mode(cx) {
6577 SoftWrap::GitDiff => None,
6578 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6579 SoftWrap::EditorWidth => Some(editor_width),
6580 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6581 SoftWrap::Bounded(column) => {
6582 Some(editor_width.min(column as f32 * em_advance))
6583 }
6584 };
6585
6586 if editor.set_wrap_width(wrap_width, cx) {
6587 editor.snapshot(window, cx)
6588 } else {
6589 snapshot
6590 }
6591 }
6592 });
6593
6594 let wrap_guides = self
6595 .editor
6596 .read(cx)
6597 .wrap_guides(cx)
6598 .iter()
6599 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6600 .collect::<SmallVec<[_; 2]>>();
6601
6602 let hitbox = window.insert_hitbox(bounds, false);
6603 let gutter_hitbox =
6604 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6605 let text_hitbox = window.insert_hitbox(
6606 Bounds {
6607 origin: gutter_hitbox.top_right(),
6608 size: size(text_width, bounds.size.height),
6609 },
6610 false,
6611 );
6612
6613 // Offset the content_bounds from the text_bounds by the gutter margin (which
6614 // is roughly half a character wide) to make hit testing work more like how we want.
6615 let content_offset = point(gutter_dimensions.margin, Pixels::ZERO);
6616 let content_origin = text_hitbox.origin + content_offset;
6617
6618 let editor_text_bounds =
6619 Bounds::from_corners(content_origin, bounds.bottom_right());
6620
6621 let height_in_lines = editor_text_bounds.size.height / line_height;
6622
6623 let max_row = snapshot.max_point().row().as_f32();
6624
6625 // The max scroll position for the top of the window
6626 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6627 (max_row - height_in_lines + 1.).max(0.)
6628 } else {
6629 let settings = EditorSettings::get_global(cx);
6630 match settings.scroll_beyond_last_line {
6631 ScrollBeyondLastLine::OnePage => max_row,
6632 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6633 ScrollBeyondLastLine::VerticalScrollMargin => {
6634 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6635 .max(0.)
6636 }
6637 }
6638 };
6639
6640 // TODO: Autoscrolling for both axes
6641 let mut autoscroll_request = None;
6642 let mut autoscroll_containing_element = false;
6643 let mut autoscroll_horizontally = false;
6644 self.editor.update(cx, |editor, cx| {
6645 autoscroll_request = editor.autoscroll_request();
6646 autoscroll_containing_element =
6647 autoscroll_request.is_some() || editor.has_pending_selection();
6648 // TODO: Is this horizontal or vertical?!
6649 autoscroll_horizontally = editor.autoscroll_vertically(
6650 bounds,
6651 line_height,
6652 max_scroll_top,
6653 window,
6654 cx,
6655 );
6656 snapshot = editor.snapshot(window, cx);
6657 });
6658
6659 let mut scroll_position = snapshot.scroll_position();
6660 // The scroll position is a fractional point, the whole number of which represents
6661 // the top of the window in terms of display rows.
6662 let start_row = DisplayRow(scroll_position.y as u32);
6663 let max_row = snapshot.max_point().row();
6664 let end_row = cmp::min(
6665 (scroll_position.y + height_in_lines).ceil() as u32,
6666 max_row.next_row().0,
6667 );
6668 let end_row = DisplayRow(end_row);
6669
6670 let row_infos = snapshot
6671 .row_infos(start_row)
6672 .take((start_row..end_row).len())
6673 .collect::<Vec<RowInfo>>();
6674 let is_row_soft_wrapped = |row: usize| {
6675 row_infos
6676 .get(row)
6677 .map_or(true, |info| info.buffer_row.is_none())
6678 };
6679
6680 let start_anchor = if start_row == Default::default() {
6681 Anchor::min()
6682 } else {
6683 snapshot.buffer_snapshot.anchor_before(
6684 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6685 )
6686 };
6687 let end_anchor = if end_row > max_row {
6688 Anchor::max()
6689 } else {
6690 snapshot.buffer_snapshot.anchor_before(
6691 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6692 )
6693 };
6694
6695 let mut highlighted_rows = self
6696 .editor
6697 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6698
6699 let is_light = cx.theme().appearance().is_light();
6700
6701 for (ix, row_info) in row_infos.iter().enumerate() {
6702 let Some(diff_status) = row_info.diff_status else {
6703 continue;
6704 };
6705
6706 let background_color = match diff_status.kind {
6707 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6708 DiffHunkStatusKind::Deleted => {
6709 cx.theme().colors().version_control_deleted
6710 }
6711 DiffHunkStatusKind::Modified => {
6712 debug_panic!("modified diff status for row info");
6713 continue;
6714 }
6715 };
6716
6717 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6718
6719 let hollow_highlight = LineHighlight {
6720 background: (background_color.opacity(if is_light {
6721 0.08
6722 } else {
6723 0.06
6724 }))
6725 .into(),
6726 border: Some(if is_light {
6727 background_color.opacity(0.48)
6728 } else {
6729 background_color.opacity(0.36)
6730 }),
6731 };
6732
6733 let filled_highlight =
6734 solid_background(background_color.opacity(hunk_opacity)).into();
6735
6736 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6737 hollow_highlight
6738 } else {
6739 filled_highlight
6740 };
6741
6742 highlighted_rows
6743 .entry(start_row + DisplayRow(ix as u32))
6744 .or_insert(background);
6745 }
6746
6747 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6748 start_anchor..end_anchor,
6749 &snapshot.display_snapshot,
6750 cx.theme().colors(),
6751 );
6752 let highlighted_gutter_ranges =
6753 self.editor.read(cx).gutter_highlights_in_range(
6754 start_anchor..end_anchor,
6755 &snapshot.display_snapshot,
6756 cx,
6757 );
6758
6759 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6760 start_anchor..end_anchor,
6761 &snapshot.display_snapshot,
6762 cx,
6763 );
6764
6765 let (local_selections, selected_buffer_ids): (
6766 Vec<Selection<Point>>,
6767 Vec<BufferId>,
6768 ) = self.editor.update(cx, |editor, cx| {
6769 let all_selections = editor.selections.all::<Point>(cx);
6770 let selected_buffer_ids = if editor.is_singleton(cx) {
6771 Vec::new()
6772 } else {
6773 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6774
6775 for selection in all_selections {
6776 for buffer_id in snapshot
6777 .buffer_snapshot
6778 .buffer_ids_for_range(selection.range())
6779 {
6780 if selected_buffer_ids.last() != Some(&buffer_id) {
6781 selected_buffer_ids.push(buffer_id);
6782 }
6783 }
6784 }
6785
6786 selected_buffer_ids
6787 };
6788
6789 let mut selections = editor
6790 .selections
6791 .disjoint_in_range(start_anchor..end_anchor, cx);
6792 selections.extend(editor.selections.pending(cx));
6793
6794 (selections, selected_buffer_ids)
6795 });
6796
6797 let (selections, mut active_rows, newest_selection_head) = self
6798 .layout_selections(
6799 start_anchor,
6800 end_anchor,
6801 &local_selections,
6802 &snapshot,
6803 start_row,
6804 end_row,
6805 window,
6806 cx,
6807 );
6808 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6809 editor.active_breakpoints(start_row..end_row, window, cx)
6810 });
6811 if cx.has_flag::<Debugger>() {
6812 for display_row in breakpoint_rows.keys() {
6813 active_rows.entry(*display_row).or_default().breakpoint = true;
6814 }
6815 }
6816
6817 let line_numbers = self.layout_line_numbers(
6818 Some(&gutter_hitbox),
6819 gutter_dimensions,
6820 line_height,
6821 scroll_position,
6822 start_row..end_row,
6823 &row_infos,
6824 &active_rows,
6825 newest_selection_head,
6826 &snapshot,
6827 window,
6828 cx,
6829 );
6830
6831 // We add the gutter breakpoint indicator to breakpoint_rows after painting
6832 // line numbers so we don't paint a line number debug accent color if a user
6833 // has their mouse over that line when a breakpoint isn't there
6834 if cx.has_flag::<Debugger>() {
6835 let gutter_breakpoint_indicator =
6836 self.editor.read(cx).gutter_breakpoint_indicator;
6837 if let Some(gutter_breakpoint_point) = gutter_breakpoint_indicator {
6838 breakpoint_rows
6839 .entry(gutter_breakpoint_point.row())
6840 .or_insert_with(|| {
6841 let position = snapshot.display_point_to_anchor(
6842 gutter_breakpoint_point,
6843 Bias::Left,
6844 );
6845 let breakpoint = Breakpoint::new_standard();
6846
6847 (position, breakpoint)
6848 });
6849 }
6850 }
6851
6852 let mut expand_toggles =
6853 window.with_element_namespace("expand_toggles", |window| {
6854 self.layout_expand_toggles(
6855 &gutter_hitbox,
6856 gutter_dimensions,
6857 em_width,
6858 line_height,
6859 scroll_position,
6860 &row_infos,
6861 window,
6862 cx,
6863 )
6864 });
6865
6866 let mut crease_toggles =
6867 window.with_element_namespace("crease_toggles", |window| {
6868 self.layout_crease_toggles(
6869 start_row..end_row,
6870 &row_infos,
6871 &active_rows,
6872 &snapshot,
6873 window,
6874 cx,
6875 )
6876 });
6877 let crease_trailers =
6878 window.with_element_namespace("crease_trailers", |window| {
6879 self.layout_crease_trailers(
6880 row_infos.iter().copied(),
6881 &snapshot,
6882 window,
6883 cx,
6884 )
6885 });
6886
6887 let display_hunks = self.layout_gutter_diff_hunks(
6888 line_height,
6889 &gutter_hitbox,
6890 start_row..end_row,
6891 &snapshot,
6892 window,
6893 cx,
6894 );
6895
6896 let mut line_layouts = Self::layout_lines(
6897 start_row..end_row,
6898 &snapshot,
6899 &self.style,
6900 editor_width,
6901 is_row_soft_wrapped,
6902 window,
6903 cx,
6904 );
6905
6906 let longest_line_blame_width = self
6907 .editor
6908 .update(cx, |editor, cx| {
6909 if !editor.show_git_blame_inline {
6910 return None;
6911 }
6912 let blame = editor.blame.as_ref()?;
6913 let blame_entry = blame
6914 .update(cx, |blame, cx| {
6915 let row_infos =
6916 snapshot.row_infos(snapshot.longest_row()).next()?;
6917 blame.blame_for_rows(&[row_infos], cx).next()
6918 })
6919 .flatten()?;
6920 let mut element = render_inline_blame_entry(
6921 self.editor.clone(),
6922 blame,
6923 blame_entry,
6924 &style,
6925 cx,
6926 );
6927 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6928 Some(
6929 element
6930 .layout_as_root(AvailableSpace::min_size(), window, cx)
6931 .width
6932 + inline_blame_padding,
6933 )
6934 })
6935 .unwrap_or(Pixels::ZERO);
6936
6937 let longest_line_width = layout_line(
6938 snapshot.longest_row(),
6939 &snapshot,
6940 &style,
6941 editor_width,
6942 is_row_soft_wrapped,
6943 window,
6944 cx,
6945 )
6946 .width;
6947
6948 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
6949 text_hitbox.bounds,
6950 glyph_grid_cell,
6951 size(longest_line_width, max_row.as_f32() * line_height),
6952 longest_line_blame_width,
6953 style.scrollbar_width,
6954 editor_width,
6955 EditorSettings::get_global(cx),
6956 );
6957
6958 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
6959
6960 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
6961 snapshot.sticky_header_excerpt(scroll_position.y)
6962 } else {
6963 None
6964 };
6965 let sticky_header_excerpt_id =
6966 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
6967
6968 let blocks = window.with_element_namespace("blocks", |window| {
6969 self.render_blocks(
6970 start_row..end_row,
6971 &snapshot,
6972 &hitbox,
6973 &text_hitbox,
6974 editor_width,
6975 &mut scroll_width,
6976 &gutter_dimensions,
6977 em_width,
6978 gutter_dimensions.full_width(),
6979 line_height,
6980 &line_layouts,
6981 &local_selections,
6982 &selected_buffer_ids,
6983 is_row_soft_wrapped,
6984 sticky_header_excerpt_id,
6985 window,
6986 cx,
6987 )
6988 });
6989 let mut blocks = match blocks {
6990 Ok(blocks) => blocks,
6991 Err(resized_blocks) => {
6992 self.editor.update(cx, |editor, cx| {
6993 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
6994 });
6995 return self.prepaint(None, bounds, &mut (), window, cx);
6996 }
6997 };
6998
6999 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7000 window.with_element_namespace("blocks", |window| {
7001 self.layout_sticky_buffer_header(
7002 sticky_header_excerpt,
7003 scroll_position.y,
7004 line_height,
7005 &snapshot,
7006 &hitbox,
7007 &selected_buffer_ids,
7008 &blocks,
7009 window,
7010 cx,
7011 )
7012 })
7013 });
7014
7015 let start_buffer_row =
7016 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7017 let end_buffer_row =
7018 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7019
7020 let scroll_max = point(
7021 ((scroll_width - editor_text_bounds.size.width) / em_width).max(0.0),
7022 max_scroll_top,
7023 );
7024
7025 self.editor.update(cx, |editor, cx| {
7026 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7027
7028 let autoscrolled = if autoscroll_horizontally {
7029 editor.autoscroll_horizontally(
7030 start_row,
7031 editor_width - (glyph_grid_cell.width / 2.0)
7032 + style.scrollbar_width,
7033 scroll_width,
7034 em_width,
7035 &line_layouts,
7036 cx,
7037 )
7038 } else {
7039 false
7040 };
7041
7042 if clamped || autoscrolled {
7043 snapshot = editor.snapshot(window, cx);
7044 scroll_position = snapshot.scroll_position();
7045 }
7046 });
7047
7048 let scroll_pixel_position = point(
7049 scroll_position.x * em_width,
7050 scroll_position.y * line_height,
7051 );
7052
7053 let indent_guides = self.layout_indent_guides(
7054 content_origin,
7055 text_hitbox.origin,
7056 start_buffer_row..end_buffer_row,
7057 scroll_pixel_position,
7058 line_height,
7059 &snapshot,
7060 window,
7061 cx,
7062 );
7063
7064 let crease_trailers =
7065 window.with_element_namespace("crease_trailers", |window| {
7066 self.prepaint_crease_trailers(
7067 crease_trailers,
7068 &line_layouts,
7069 line_height,
7070 content_origin,
7071 scroll_pixel_position,
7072 em_width,
7073 window,
7074 cx,
7075 )
7076 });
7077
7078 let (inline_completion_popover, inline_completion_popover_origin) = self
7079 .editor
7080 .update(cx, |editor, cx| {
7081 editor.render_edit_prediction_popover(
7082 &text_hitbox.bounds,
7083 content_origin,
7084 &snapshot,
7085 start_row..end_row,
7086 scroll_position.y,
7087 scroll_position.y + height_in_lines,
7088 &line_layouts,
7089 line_height,
7090 scroll_pixel_position,
7091 newest_selection_head,
7092 editor_width,
7093 &style,
7094 window,
7095 cx,
7096 )
7097 })
7098 .unzip();
7099
7100 let mut inline_diagnostics = self.layout_inline_diagnostics(
7101 &line_layouts,
7102 &crease_trailers,
7103 content_origin,
7104 scroll_pixel_position,
7105 inline_completion_popover_origin,
7106 start_row,
7107 end_row,
7108 line_height,
7109 em_width,
7110 &style,
7111 window,
7112 cx,
7113 );
7114
7115 let mut inline_blame = None;
7116 if let Some(newest_selection_head) = newest_selection_head {
7117 let display_row = newest_selection_head.row();
7118 if (start_row..end_row).contains(&display_row) {
7119 let line_ix = display_row.minus(start_row) as usize;
7120 let row_info = &row_infos[line_ix];
7121 let line_layout = &line_layouts[line_ix];
7122 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7123 inline_blame = self.layout_inline_blame(
7124 display_row,
7125 row_info,
7126 line_layout,
7127 crease_trailer_layout,
7128 em_width,
7129 content_origin,
7130 scroll_pixel_position,
7131 line_height,
7132 window,
7133 cx,
7134 );
7135 if inline_blame.is_some() {
7136 // Blame overrides inline diagnostics
7137 inline_diagnostics.remove(&display_row);
7138 }
7139 }
7140 }
7141
7142 let blamed_display_rows = self.layout_blame_entries(
7143 &row_infos,
7144 em_width,
7145 scroll_position,
7146 line_height,
7147 &gutter_hitbox,
7148 gutter_dimensions.git_blame_entries_width,
7149 window,
7150 cx,
7151 );
7152
7153 self.editor.update(cx, |editor, cx| {
7154 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7155
7156 let autoscrolled = if autoscroll_horizontally {
7157 editor.autoscroll_horizontally(
7158 start_row,
7159 editor_width - (glyph_grid_cell.width / 2.0)
7160 + style.scrollbar_width,
7161 scroll_width,
7162 em_width,
7163 &line_layouts,
7164 cx,
7165 )
7166 } else {
7167 false
7168 };
7169
7170 if clamped || autoscrolled {
7171 snapshot = editor.snapshot(window, cx);
7172 scroll_position = snapshot.scroll_position();
7173 }
7174 });
7175
7176 let line_elements = self.prepaint_lines(
7177 start_row,
7178 &mut line_layouts,
7179 line_height,
7180 scroll_pixel_position,
7181 content_origin,
7182 window,
7183 cx,
7184 );
7185
7186 let mut block_start_rows = HashSet::default();
7187
7188 window.with_element_namespace("blocks", |window| {
7189 self.layout_blocks(
7190 &mut blocks,
7191 &mut block_start_rows,
7192 &hitbox,
7193 line_height,
7194 scroll_pixel_position,
7195 window,
7196 cx,
7197 );
7198 });
7199
7200 let cursors = self.collect_cursors(&snapshot, cx);
7201 let visible_row_range = start_row..end_row;
7202 let non_visible_cursors = cursors
7203 .iter()
7204 .any(|c| !visible_row_range.contains(&c.0.row()));
7205
7206 let visible_cursors = self.layout_visible_cursors(
7207 &snapshot,
7208 &selections,
7209 &block_start_rows,
7210 start_row..end_row,
7211 &line_layouts,
7212 &text_hitbox,
7213 content_origin,
7214 scroll_position,
7215 scroll_pixel_position,
7216 line_height,
7217 em_width,
7218 em_advance,
7219 autoscroll_containing_element,
7220 window,
7221 cx,
7222 );
7223
7224 let scrollbars_layout = self.layout_scrollbars(
7225 &snapshot,
7226 scrollbar_layout_information,
7227 content_offset,
7228 scroll_position,
7229 non_visible_cursors,
7230 window,
7231 cx,
7232 );
7233
7234 let gutter_settings = EditorSettings::get_global(cx).gutter;
7235
7236 let mut code_actions_indicator = None;
7237 if let Some(newest_selection_head) = newest_selection_head {
7238 let newest_selection_point =
7239 newest_selection_head.to_point(&snapshot.display_snapshot);
7240
7241 if (start_row..end_row).contains(&newest_selection_head.row()) {
7242 self.layout_cursor_popovers(
7243 line_height,
7244 &text_hitbox,
7245 content_origin,
7246 start_row,
7247 scroll_pixel_position,
7248 &line_layouts,
7249 newest_selection_head,
7250 newest_selection_point,
7251 &style,
7252 window,
7253 cx,
7254 );
7255
7256 let show_code_actions = snapshot
7257 .show_code_actions
7258 .unwrap_or(gutter_settings.code_actions);
7259 if show_code_actions {
7260 let newest_selection_point =
7261 newest_selection_head.to_point(&snapshot.display_snapshot);
7262 if !snapshot
7263 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7264 {
7265 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7266 MultiBufferRow(newest_selection_point.row),
7267 );
7268 if let Some((buffer, range)) = buffer {
7269 let buffer_id = buffer.remote_id();
7270 let row = range.start.row;
7271 let has_test_indicator = self
7272 .editor
7273 .read(cx)
7274 .tasks
7275 .contains_key(&(buffer_id, row));
7276
7277 let has_expand_indicator = row_infos
7278 .get(
7279 (newest_selection_head.row() - start_row).0
7280 as usize,
7281 )
7282 .is_some_and(|row_info| row_info.expand_info.is_some());
7283
7284 if !has_test_indicator && !has_expand_indicator {
7285 code_actions_indicator = self
7286 .layout_code_actions_indicator(
7287 line_height,
7288 newest_selection_head,
7289 scroll_pixel_position,
7290 &gutter_dimensions,
7291 &gutter_hitbox,
7292 &mut breakpoint_rows,
7293 &display_hunks,
7294 window,
7295 cx,
7296 );
7297 }
7298 }
7299 }
7300 }
7301 }
7302 }
7303
7304 self.layout_gutter_menu(
7305 line_height,
7306 &text_hitbox,
7307 content_origin,
7308 scroll_pixel_position,
7309 gutter_dimensions.width - gutter_dimensions.left_padding,
7310 window,
7311 cx,
7312 );
7313
7314 let test_indicators = if gutter_settings.runnables {
7315 self.layout_run_indicators(
7316 line_height,
7317 start_row..end_row,
7318 &row_infos,
7319 scroll_pixel_position,
7320 &gutter_dimensions,
7321 &gutter_hitbox,
7322 &display_hunks,
7323 &snapshot,
7324 &mut breakpoint_rows,
7325 window,
7326 cx,
7327 )
7328 } else {
7329 Vec::new()
7330 };
7331
7332 let show_breakpoints = snapshot
7333 .show_breakpoints
7334 .unwrap_or(gutter_settings.breakpoints);
7335 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7336 self.layout_breakpoints(
7337 line_height,
7338 start_row..end_row,
7339 scroll_pixel_position,
7340 &gutter_dimensions,
7341 &gutter_hitbox,
7342 &display_hunks,
7343 &snapshot,
7344 breakpoint_rows,
7345 &row_infos,
7346 window,
7347 cx,
7348 )
7349 } else {
7350 vec![]
7351 };
7352
7353 self.layout_signature_help(
7354 &hitbox,
7355 content_origin,
7356 scroll_pixel_position,
7357 newest_selection_head,
7358 start_row,
7359 &line_layouts,
7360 line_height,
7361 em_width,
7362 window,
7363 cx,
7364 );
7365
7366 if !cx.has_active_drag() {
7367 self.layout_hover_popovers(
7368 &snapshot,
7369 &hitbox,
7370 &text_hitbox,
7371 start_row..end_row,
7372 content_origin,
7373 scroll_pixel_position,
7374 &line_layouts,
7375 line_height,
7376 em_width,
7377 window,
7378 cx,
7379 );
7380 }
7381
7382 let mouse_context_menu = self.layout_mouse_context_menu(
7383 &snapshot,
7384 start_row..end_row,
7385 content_origin,
7386 window,
7387 cx,
7388 );
7389
7390 window.with_element_namespace("crease_toggles", |window| {
7391 self.prepaint_crease_toggles(
7392 &mut crease_toggles,
7393 line_height,
7394 &gutter_dimensions,
7395 gutter_settings,
7396 scroll_pixel_position,
7397 &gutter_hitbox,
7398 window,
7399 cx,
7400 )
7401 });
7402
7403 window.with_element_namespace("expand_toggles", |window| {
7404 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7405 });
7406
7407 let invisible_symbol_font_size = font_size / 2.;
7408 let tab_invisible = window
7409 .text_system()
7410 .shape_line(
7411 "→".into(),
7412 invisible_symbol_font_size,
7413 &[TextRun {
7414 len: "→".len(),
7415 font: self.style.text.font(),
7416 color: cx.theme().colors().editor_invisible,
7417 background_color: None,
7418 underline: None,
7419 strikethrough: None,
7420 }],
7421 )
7422 .unwrap();
7423 let space_invisible = window
7424 .text_system()
7425 .shape_line(
7426 "•".into(),
7427 invisible_symbol_font_size,
7428 &[TextRun {
7429 len: "•".len(),
7430 font: self.style.text.font(),
7431 color: cx.theme().colors().editor_invisible,
7432 background_color: None,
7433 underline: None,
7434 strikethrough: None,
7435 }],
7436 )
7437 .unwrap();
7438
7439 let mode = snapshot.mode;
7440
7441 let position_map = Rc::new(PositionMap {
7442 size: bounds.size,
7443 visible_row_range,
7444 scroll_pixel_position,
7445 scroll_max,
7446 line_layouts,
7447 line_height,
7448 em_width,
7449 em_advance,
7450 snapshot,
7451 gutter_hitbox: gutter_hitbox.clone(),
7452 text_hitbox: text_hitbox.clone(),
7453 });
7454
7455 self.editor.update(cx, |editor, _| {
7456 editor.last_position_map = Some(position_map.clone())
7457 });
7458
7459 let diff_hunk_controls = self.layout_diff_hunk_controls(
7460 start_row..end_row,
7461 &row_infos,
7462 &text_hitbox,
7463 &position_map,
7464 newest_selection_head,
7465 line_height,
7466 scroll_pixel_position,
7467 &display_hunks,
7468 self.editor.clone(),
7469 window,
7470 cx,
7471 );
7472
7473 EditorLayout {
7474 mode,
7475 position_map,
7476 visible_display_row_range: start_row..end_row,
7477 wrap_guides,
7478 indent_guides,
7479 hitbox,
7480 gutter_hitbox,
7481 display_hunks,
7482 content_origin,
7483 scrollbars_layout,
7484 active_rows,
7485 highlighted_rows,
7486 highlighted_ranges,
7487 highlighted_gutter_ranges,
7488 redacted_ranges,
7489 line_elements,
7490 line_numbers,
7491 blamed_display_rows,
7492 inline_diagnostics,
7493 inline_blame,
7494 blocks,
7495 cursors,
7496 visible_cursors,
7497 selections,
7498 inline_completion_popover,
7499 diff_hunk_controls,
7500 mouse_context_menu,
7501 test_indicators,
7502 breakpoints,
7503 code_actions_indicator,
7504 crease_toggles,
7505 crease_trailers,
7506 tab_invisible,
7507 space_invisible,
7508 sticky_buffer_header,
7509 expand_toggles,
7510 }
7511 })
7512 })
7513 })
7514 }
7515
7516 fn paint(
7517 &mut self,
7518 _: Option<&GlobalElementId>,
7519 bounds: Bounds<gpui::Pixels>,
7520 _: &mut Self::RequestLayoutState,
7521 layout: &mut Self::PrepaintState,
7522 window: &mut Window,
7523 cx: &mut App,
7524 ) {
7525 let focus_handle = self.editor.focus_handle(cx);
7526 let key_context = self
7527 .editor
7528 .update(cx, |editor, cx| editor.key_context(window, cx));
7529
7530 window.set_key_context(key_context);
7531 window.handle_input(
7532 &focus_handle,
7533 ElementInputHandler::new(bounds, self.editor.clone()),
7534 cx,
7535 );
7536 self.register_actions(window, cx);
7537 self.register_key_listeners(window, cx, layout);
7538
7539 let text_style = TextStyleRefinement {
7540 font_size: Some(self.style.text.font_size),
7541 line_height: Some(self.style.text.line_height),
7542 ..Default::default()
7543 };
7544 let rem_size = self.rem_size(cx);
7545 window.with_rem_size(rem_size, |window| {
7546 window.with_text_style(Some(text_style), |window| {
7547 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7548 self.paint_mouse_listeners(layout, window, cx);
7549 self.paint_background(layout, window, cx);
7550 self.paint_indent_guides(layout, window, cx);
7551
7552 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7553 self.paint_blamed_display_rows(layout, window, cx);
7554 self.paint_line_numbers(layout, window, cx);
7555 }
7556
7557 self.paint_text(layout, window, cx);
7558
7559 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7560 self.paint_gutter_highlights(layout, window, cx);
7561 self.paint_gutter_indicators(layout, window, cx);
7562 }
7563
7564 if !layout.blocks.is_empty() {
7565 window.with_element_namespace("blocks", |window| {
7566 self.paint_blocks(layout, window, cx);
7567 });
7568 }
7569
7570 window.with_element_namespace("blocks", |window| {
7571 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7572 sticky_header.paint(window, cx)
7573 }
7574 });
7575
7576 self.paint_scrollbars(layout, window, cx);
7577 self.paint_inline_completion_popover(layout, window, cx);
7578 self.paint_mouse_context_menu(layout, window, cx);
7579 });
7580 })
7581 })
7582 }
7583}
7584
7585pub(super) fn gutter_bounds(
7586 editor_bounds: Bounds<Pixels>,
7587 gutter_dimensions: GutterDimensions,
7588) -> Bounds<Pixels> {
7589 Bounds {
7590 origin: editor_bounds.origin,
7591 size: size(gutter_dimensions.width, editor_bounds.size.height),
7592 }
7593}
7594
7595/// Holds information required for layouting the editor scrollbars.
7596struct ScrollbarLayoutInformation {
7597 /// The bounds of the editor area (excluding the content offset).
7598 editor_bounds: Bounds<Pixels>,
7599 /// The available range to scroll within the document.
7600 scroll_range: Size<Pixels>,
7601 /// The space available for one glyph in the editor.
7602 glyph_grid_cell: Size<Pixels>,
7603}
7604
7605impl ScrollbarLayoutInformation {
7606 pub fn new(
7607 editor_bounds: Bounds<Pixels>,
7608 glyph_grid_cell: Size<Pixels>,
7609 document_size: Size<Pixels>,
7610 longest_line_blame_width: Pixels,
7611 scrollbar_width: Pixels,
7612 editor_width: Pixels,
7613 settings: &EditorSettings,
7614 ) -> Self {
7615 let vertical_overscroll = match settings.scroll_beyond_last_line {
7616 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
7617 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7618 ScrollBeyondLastLine::VerticalScrollMargin => {
7619 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7620 }
7621 };
7622
7623 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7624 glyph_grid_cell.width + scrollbar_width
7625 } else {
7626 px(0.0)
7627 };
7628
7629 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7630
7631 let scroll_range = document_size + overscroll;
7632
7633 ScrollbarLayoutInformation {
7634 editor_bounds,
7635 scroll_range,
7636 glyph_grid_cell,
7637 }
7638 }
7639}
7640
7641impl IntoElement for EditorElement {
7642 type Element = Self;
7643
7644 fn into_element(self) -> Self::Element {
7645 self
7646 }
7647}
7648
7649pub struct EditorLayout {
7650 position_map: Rc<PositionMap>,
7651 hitbox: Hitbox,
7652 gutter_hitbox: Hitbox,
7653 content_origin: gpui::Point<Pixels>,
7654 scrollbars_layout: Option<EditorScrollbars>,
7655 mode: EditorMode,
7656 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7657 indent_guides: Option<Vec<IndentGuideLayout>>,
7658 visible_display_row_range: Range<DisplayRow>,
7659 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7660 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7661 line_elements: SmallVec<[AnyElement; 1]>,
7662 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7663 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7664 blamed_display_rows: Option<Vec<AnyElement>>,
7665 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7666 inline_blame: Option<AnyElement>,
7667 blocks: Vec<BlockLayout>,
7668 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7669 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7670 redacted_ranges: Vec<Range<DisplayPoint>>,
7671 cursors: Vec<(DisplayPoint, Hsla)>,
7672 visible_cursors: Vec<CursorLayout>,
7673 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7674 code_actions_indicator: Option<AnyElement>,
7675 test_indicators: Vec<AnyElement>,
7676 breakpoints: Vec<AnyElement>,
7677 crease_toggles: Vec<Option<AnyElement>>,
7678 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7679 diff_hunk_controls: Vec<AnyElement>,
7680 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7681 inline_completion_popover: Option<AnyElement>,
7682 mouse_context_menu: Option<AnyElement>,
7683 tab_invisible: ShapedLine,
7684 space_invisible: ShapedLine,
7685 sticky_buffer_header: Option<AnyElement>,
7686}
7687
7688impl EditorLayout {
7689 fn line_end_overshoot(&self) -> Pixels {
7690 0.15 * self.position_map.line_height
7691 }
7692}
7693
7694struct LineNumberLayout {
7695 shaped_line: ShapedLine,
7696 hitbox: Option<Hitbox>,
7697}
7698
7699struct ColoredRange<T> {
7700 start: T,
7701 end: T,
7702 color: Hsla,
7703}
7704
7705impl Along for ScrollbarAxes {
7706 type Unit = bool;
7707
7708 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7709 match axis {
7710 ScrollbarAxis::Horizontal => self.horizontal,
7711 ScrollbarAxis::Vertical => self.vertical,
7712 }
7713 }
7714
7715 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
7716 match axis {
7717 ScrollbarAxis::Horizontal => ScrollbarAxes {
7718 horizontal: f(self.horizontal),
7719 vertical: self.vertical,
7720 },
7721 ScrollbarAxis::Vertical => ScrollbarAxes {
7722 horizontal: self.horizontal,
7723 vertical: f(self.vertical),
7724 },
7725 }
7726 }
7727}
7728
7729#[derive(Clone)]
7730struct EditorScrollbars {
7731 pub vertical: Option<ScrollbarLayout>,
7732 pub horizontal: Option<ScrollbarLayout>,
7733 pub visible: bool,
7734}
7735
7736impl EditorScrollbars {
7737 pub fn from_scrollbar_axes(
7738 settings_visibility: ScrollbarAxes,
7739 layout_information: &ScrollbarLayoutInformation,
7740 content_offset: gpui::Point<Pixels>,
7741 scroll_position: gpui::Point<f32>,
7742 scrollbar_width: Pixels,
7743 show_scrollbars: bool,
7744 window: &mut Window,
7745 ) -> Self {
7746 let ScrollbarLayoutInformation {
7747 editor_bounds,
7748 scroll_range,
7749 glyph_grid_cell,
7750 } = layout_information;
7751
7752 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
7753 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
7754 Corner::BottomLeft,
7755 editor_bounds.bottom_left(),
7756 size(
7757 if settings_visibility.vertical {
7758 editor_bounds.size.width - scrollbar_width
7759 } else {
7760 editor_bounds.size.width
7761 },
7762 scrollbar_width,
7763 ),
7764 ),
7765 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
7766 Corner::TopRight,
7767 editor_bounds.top_right(),
7768 size(scrollbar_width, editor_bounds.size.height),
7769 ),
7770 };
7771
7772 let mut create_scrollbar_layout = |axis| {
7773 settings_visibility
7774 .along(axis)
7775 .then(|| {
7776 (
7777 editor_bounds.size.along(axis) - content_offset.along(axis),
7778 scroll_range.along(axis),
7779 )
7780 })
7781 .filter(|(editor_content_size, scroll_range)| {
7782 // The scrollbar should only be rendered if the content does
7783 // not entirely fit into the editor
7784 // However, this only applies to the horizontal scrollbar, as information about the
7785 // vertical scrollbar layout is always needed for scrollbar diagnostics.
7786 axis != ScrollbarAxis::Horizontal || editor_content_size < scroll_range
7787 })
7788 .map(|(editor_content_size, scroll_range)| {
7789 ScrollbarLayout::new(
7790 window.insert_hitbox(scrollbar_bounds_for(axis), false),
7791 editor_content_size,
7792 scroll_range,
7793 glyph_grid_cell.along(axis),
7794 content_offset.along(axis),
7795 scroll_position.along(axis),
7796 axis,
7797 )
7798 })
7799 };
7800
7801 Self {
7802 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
7803 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
7804 visible: show_scrollbars,
7805 }
7806 }
7807
7808 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
7809 [
7810 (&self.vertical, ScrollbarAxis::Vertical),
7811 (&self.horizontal, ScrollbarAxis::Horizontal),
7812 ]
7813 .into_iter()
7814 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
7815 }
7816
7817 /// Returns the currently hovered scrollbar axis, if any.
7818 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
7819 self.iter_scrollbars()
7820 .find(|s| s.0.hitbox.is_hovered(window))
7821 }
7822}
7823
7824#[derive(Clone)]
7825struct ScrollbarLayout {
7826 hitbox: Hitbox,
7827 visible_range: Range<f32>,
7828 text_unit_size: Pixels,
7829 content_offset: Pixels,
7830 thumb_size: Pixels,
7831 axis: ScrollbarAxis,
7832}
7833
7834impl ScrollbarLayout {
7835 const BORDER_WIDTH: Pixels = px(1.0);
7836 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7837 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7838 const MIN_THUMB_SIZE: Pixels = px(25.0);
7839
7840 fn new(
7841 scrollbar_track_hitbox: Hitbox,
7842 editor_content_size: Pixels,
7843 scroll_range: Pixels,
7844 glyph_space: Pixels,
7845 content_offset: Pixels,
7846 scroll_position: f32,
7847 axis: ScrollbarAxis,
7848 ) -> Self {
7849 let track_bounds = scrollbar_track_hitbox.bounds;
7850 // The length of the track available to the scrollbar thumb. We deliberately
7851 // exclude the content size here so that the thumb aligns with the content.
7852 let track_length = track_bounds.size.along(axis) - content_offset;
7853
7854 let text_units_per_page = editor_content_size / glyph_space;
7855 let visible_range = scroll_position..scroll_position + text_units_per_page;
7856 let total_text_units = scroll_range / glyph_space;
7857
7858 let thumb_percentage = text_units_per_page / total_text_units;
7859 let thumb_size = (track_length * thumb_percentage)
7860 .max(ScrollbarLayout::MIN_THUMB_SIZE)
7861 .min(track_length);
7862 let text_unit_size =
7863 (track_length - thumb_size) / (total_text_units - text_units_per_page).max(0.);
7864
7865 ScrollbarLayout {
7866 hitbox: scrollbar_track_hitbox,
7867 visible_range,
7868 text_unit_size,
7869 content_offset,
7870 thumb_size,
7871 axis,
7872 }
7873 }
7874
7875 fn thumb_bounds(&self) -> Bounds<Pixels> {
7876 let scrollbar_track = &self.hitbox.bounds;
7877 Bounds::new(
7878 scrollbar_track
7879 .origin
7880 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
7881 scrollbar_track
7882 .size
7883 .apply_along(self.axis, |_| self.thumb_size),
7884 )
7885 }
7886
7887 fn thumb_origin(&self, origin: Pixels) -> Pixels {
7888 origin + self.content_offset + self.visible_range.start * self.text_unit_size
7889 }
7890
7891 fn marker_quads_for_ranges(
7892 &self,
7893 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7894 column: Option<usize>,
7895 ) -> Vec<PaintQuad> {
7896 struct MinMax {
7897 min: Pixels,
7898 max: Pixels,
7899 }
7900 let (x_range, height_limit) = if let Some(column) = column {
7901 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7902 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7903 let end = start + column_width;
7904 (
7905 Range { start, end },
7906 MinMax {
7907 min: Self::MIN_MARKER_HEIGHT,
7908 max: px(f32::MAX),
7909 },
7910 )
7911 } else {
7912 (
7913 Range {
7914 start: Self::BORDER_WIDTH,
7915 end: self.hitbox.size.width,
7916 },
7917 MinMax {
7918 min: Self::LINE_MARKER_HEIGHT,
7919 max: Self::LINE_MARKER_HEIGHT,
7920 },
7921 )
7922 };
7923
7924 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7925 let mut pixel_ranges = row_ranges
7926 .into_iter()
7927 .map(|range| {
7928 let start_y = row_to_y(range.start);
7929 let end_y = row_to_y(range.end)
7930 + self
7931 .text_unit_size
7932 .max(height_limit.min)
7933 .min(height_limit.max);
7934 ColoredRange {
7935 start: start_y,
7936 end: end_y,
7937 color: range.color,
7938 }
7939 })
7940 .peekable();
7941
7942 let mut quads = Vec::new();
7943 while let Some(mut pixel_range) = pixel_ranges.next() {
7944 while let Some(next_pixel_range) = pixel_ranges.peek() {
7945 if pixel_range.end >= next_pixel_range.start - px(1.0)
7946 && pixel_range.color == next_pixel_range.color
7947 {
7948 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7949 pixel_ranges.next();
7950 } else {
7951 break;
7952 }
7953 }
7954
7955 let bounds = Bounds::from_corners(
7956 point(x_range.start, pixel_range.start),
7957 point(x_range.end, pixel_range.end),
7958 );
7959 quads.push(quad(
7960 bounds,
7961 Corners::default(),
7962 pixel_range.color,
7963 Edges::default(),
7964 Hsla::transparent_black(),
7965 BorderStyle::default(),
7966 ));
7967 }
7968
7969 quads
7970 }
7971}
7972
7973struct CreaseTrailerLayout {
7974 element: AnyElement,
7975 bounds: Bounds<Pixels>,
7976}
7977
7978pub(crate) struct PositionMap {
7979 pub size: Size<Pixels>,
7980 pub line_height: Pixels,
7981 pub scroll_pixel_position: gpui::Point<Pixels>,
7982 pub scroll_max: gpui::Point<f32>,
7983 pub em_width: Pixels,
7984 pub em_advance: Pixels,
7985 pub visible_row_range: Range<DisplayRow>,
7986 pub line_layouts: Vec<LineWithInvisibles>,
7987 pub snapshot: EditorSnapshot,
7988 pub text_hitbox: Hitbox,
7989 pub gutter_hitbox: Hitbox,
7990}
7991
7992#[derive(Debug, Copy, Clone)]
7993pub struct PointForPosition {
7994 pub previous_valid: DisplayPoint,
7995 pub next_valid: DisplayPoint,
7996 pub exact_unclipped: DisplayPoint,
7997 pub column_overshoot_after_line_end: u32,
7998}
7999
8000impl PointForPosition {
8001 pub fn as_valid(&self) -> Option<DisplayPoint> {
8002 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8003 Some(self.previous_valid)
8004 } else {
8005 None
8006 }
8007 }
8008}
8009
8010impl PositionMap {
8011 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8012 let text_bounds = self.text_hitbox.bounds;
8013 let scroll_position = self.snapshot.scroll_position();
8014 let position = position - text_bounds.origin;
8015 let y = position.y.max(px(0.)).min(self.size.height);
8016 let x = position.x + (scroll_position.x * self.em_width);
8017 let row = ((y / self.line_height) + scroll_position.y) as u32;
8018
8019 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8020 .line_layouts
8021 .get(row as usize - scroll_position.y as usize)
8022 {
8023 if let Some(ix) = line.index_for_x(x) {
8024 (ix as u32, px(0.))
8025 } else {
8026 (line.len as u32, px(0.).max(x - line.width))
8027 }
8028 } else {
8029 (0, x)
8030 };
8031
8032 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8033 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8034 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8035
8036 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8037 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8038 PointForPosition {
8039 previous_valid,
8040 next_valid,
8041 exact_unclipped,
8042 column_overshoot_after_line_end,
8043 }
8044 }
8045}
8046
8047struct BlockLayout {
8048 id: BlockId,
8049 row: Option<DisplayRow>,
8050 element: AnyElement,
8051 available_space: Size<AvailableSpace>,
8052 style: BlockStyle,
8053 is_buffer_header: bool,
8054}
8055
8056pub fn layout_line(
8057 row: DisplayRow,
8058 snapshot: &EditorSnapshot,
8059 style: &EditorStyle,
8060 text_width: Pixels,
8061 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8062 window: &mut Window,
8063 cx: &mut App,
8064) -> LineWithInvisibles {
8065 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8066 LineWithInvisibles::from_chunks(
8067 chunks,
8068 &style,
8069 MAX_LINE_LEN,
8070 1,
8071 snapshot.mode,
8072 text_width,
8073 is_row_soft_wrapped,
8074 window,
8075 cx,
8076 )
8077 .pop()
8078 .unwrap()
8079}
8080
8081#[derive(Debug)]
8082pub struct IndentGuideLayout {
8083 origin: gpui::Point<Pixels>,
8084 length: Pixels,
8085 single_indent_width: Pixels,
8086 depth: u32,
8087 active: bool,
8088 settings: IndentGuideSettings,
8089}
8090
8091pub struct CursorLayout {
8092 origin: gpui::Point<Pixels>,
8093 block_width: Pixels,
8094 line_height: Pixels,
8095 color: Hsla,
8096 shape: CursorShape,
8097 block_text: Option<ShapedLine>,
8098 cursor_name: Option<AnyElement>,
8099}
8100
8101#[derive(Debug)]
8102pub struct CursorName {
8103 string: SharedString,
8104 color: Hsla,
8105 is_top_row: bool,
8106}
8107
8108impl CursorLayout {
8109 pub fn new(
8110 origin: gpui::Point<Pixels>,
8111 block_width: Pixels,
8112 line_height: Pixels,
8113 color: Hsla,
8114 shape: CursorShape,
8115 block_text: Option<ShapedLine>,
8116 ) -> CursorLayout {
8117 CursorLayout {
8118 origin,
8119 block_width,
8120 line_height,
8121 color,
8122 shape,
8123 block_text,
8124 cursor_name: None,
8125 }
8126 }
8127
8128 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8129 Bounds {
8130 origin: self.origin + origin,
8131 size: size(self.block_width, self.line_height),
8132 }
8133 }
8134
8135 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8136 match self.shape {
8137 CursorShape::Bar => Bounds {
8138 origin: self.origin + origin,
8139 size: size(px(2.0), self.line_height),
8140 },
8141 CursorShape::Block | CursorShape::Hollow => Bounds {
8142 origin: self.origin + origin,
8143 size: size(self.block_width, self.line_height),
8144 },
8145 CursorShape::Underline => Bounds {
8146 origin: self.origin
8147 + origin
8148 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8149 size: size(self.block_width, px(2.0)),
8150 },
8151 }
8152 }
8153
8154 pub fn layout(
8155 &mut self,
8156 origin: gpui::Point<Pixels>,
8157 cursor_name: Option<CursorName>,
8158 window: &mut Window,
8159 cx: &mut App,
8160 ) {
8161 if let Some(cursor_name) = cursor_name {
8162 let bounds = self.bounds(origin);
8163 let text_size = self.line_height / 1.5;
8164
8165 let name_origin = if cursor_name.is_top_row {
8166 point(bounds.right() - px(1.), bounds.top())
8167 } else {
8168 match self.shape {
8169 CursorShape::Bar => point(
8170 bounds.right() - px(2.),
8171 bounds.top() - text_size / 2. - px(1.),
8172 ),
8173 _ => point(
8174 bounds.right() - px(1.),
8175 bounds.top() - text_size / 2. - px(1.),
8176 ),
8177 }
8178 };
8179 let mut name_element = div()
8180 .bg(self.color)
8181 .text_size(text_size)
8182 .px_0p5()
8183 .line_height(text_size + px(2.))
8184 .text_color(cursor_name.color)
8185 .child(cursor_name.string.clone())
8186 .into_any_element();
8187
8188 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8189
8190 self.cursor_name = Some(name_element);
8191 }
8192 }
8193
8194 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8195 let bounds = self.bounds(origin);
8196
8197 //Draw background or border quad
8198 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8199 outline(bounds, self.color, BorderStyle::Solid)
8200 } else {
8201 fill(bounds, self.color)
8202 };
8203
8204 if let Some(name) = &mut self.cursor_name {
8205 name.paint(window, cx);
8206 }
8207
8208 window.paint_quad(cursor);
8209
8210 if let Some(block_text) = &self.block_text {
8211 block_text
8212 .paint(self.origin + origin, self.line_height, window, cx)
8213 .log_err();
8214 }
8215 }
8216
8217 pub fn shape(&self) -> CursorShape {
8218 self.shape
8219 }
8220}
8221
8222#[derive(Debug)]
8223pub struct HighlightedRange {
8224 pub start_y: Pixels,
8225 pub line_height: Pixels,
8226 pub lines: Vec<HighlightedRangeLine>,
8227 pub color: Hsla,
8228 pub corner_radius: Pixels,
8229}
8230
8231#[derive(Debug)]
8232pub struct HighlightedRangeLine {
8233 pub start_x: Pixels,
8234 pub end_x: Pixels,
8235}
8236
8237impl HighlightedRange {
8238 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8239 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8240 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8241 self.paint_lines(
8242 self.start_y + self.line_height,
8243 &self.lines[1..],
8244 bounds,
8245 window,
8246 );
8247 } else {
8248 self.paint_lines(self.start_y, &self.lines, bounds, window);
8249 }
8250 }
8251
8252 fn paint_lines(
8253 &self,
8254 start_y: Pixels,
8255 lines: &[HighlightedRangeLine],
8256 _bounds: Bounds<Pixels>,
8257 window: &mut Window,
8258 ) {
8259 if lines.is_empty() {
8260 return;
8261 }
8262
8263 let first_line = lines.first().unwrap();
8264 let last_line = lines.last().unwrap();
8265
8266 let first_top_left = point(first_line.start_x, start_y);
8267 let first_top_right = point(first_line.end_x, start_y);
8268
8269 let curve_height = point(Pixels::ZERO, self.corner_radius);
8270 let curve_width = |start_x: Pixels, end_x: Pixels| {
8271 let max = (end_x - start_x) / 2.;
8272 let width = if max < self.corner_radius {
8273 max
8274 } else {
8275 self.corner_radius
8276 };
8277
8278 point(width, Pixels::ZERO)
8279 };
8280
8281 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8282 let mut builder = gpui::PathBuilder::fill();
8283 builder.move_to(first_top_right - top_curve_width);
8284 builder.curve_to(first_top_right + curve_height, first_top_right);
8285
8286 let mut iter = lines.iter().enumerate().peekable();
8287 while let Some((ix, line)) = iter.next() {
8288 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8289
8290 if let Some((_, next_line)) = iter.peek() {
8291 let next_top_right = point(next_line.end_x, bottom_right.y);
8292
8293 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8294 Ordering::Equal => {
8295 builder.line_to(bottom_right);
8296 }
8297 Ordering::Less => {
8298 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8299 builder.line_to(bottom_right - curve_height);
8300 if self.corner_radius > Pixels::ZERO {
8301 builder.curve_to(bottom_right - curve_width, bottom_right);
8302 }
8303 builder.line_to(next_top_right + curve_width);
8304 if self.corner_radius > Pixels::ZERO {
8305 builder.curve_to(next_top_right + curve_height, next_top_right);
8306 }
8307 }
8308 Ordering::Greater => {
8309 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8310 builder.line_to(bottom_right - curve_height);
8311 if self.corner_radius > Pixels::ZERO {
8312 builder.curve_to(bottom_right + curve_width, bottom_right);
8313 }
8314 builder.line_to(next_top_right - curve_width);
8315 if self.corner_radius > Pixels::ZERO {
8316 builder.curve_to(next_top_right + curve_height, next_top_right);
8317 }
8318 }
8319 }
8320 } else {
8321 let curve_width = curve_width(line.start_x, line.end_x);
8322 builder.line_to(bottom_right - curve_height);
8323 if self.corner_radius > Pixels::ZERO {
8324 builder.curve_to(bottom_right - curve_width, bottom_right);
8325 }
8326
8327 let bottom_left = point(line.start_x, bottom_right.y);
8328 builder.line_to(bottom_left + curve_width);
8329 if self.corner_radius > Pixels::ZERO {
8330 builder.curve_to(bottom_left - curve_height, bottom_left);
8331 }
8332 }
8333 }
8334
8335 if first_line.start_x > last_line.start_x {
8336 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8337 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8338 builder.line_to(second_top_left + curve_height);
8339 if self.corner_radius > Pixels::ZERO {
8340 builder.curve_to(second_top_left + curve_width, second_top_left);
8341 }
8342 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8343 builder.line_to(first_bottom_left - curve_width);
8344 if self.corner_radius > Pixels::ZERO {
8345 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8346 }
8347 }
8348
8349 builder.line_to(first_top_left + curve_height);
8350 if self.corner_radius > Pixels::ZERO {
8351 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8352 }
8353 builder.line_to(first_top_right - top_curve_width);
8354
8355 if let Ok(path) = builder.build() {
8356 window.paint_path(path, self.color);
8357 }
8358 }
8359}
8360
8361enum CursorPopoverType {
8362 CodeContextMenu,
8363 EditPrediction,
8364}
8365
8366pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8367 (delta.pow(1.5) / 100.0).into()
8368}
8369
8370fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8371 (delta.pow(1.2) / 300.0).into()
8372}
8373
8374pub fn register_action<T: Action>(
8375 editor: &Entity<Editor>,
8376 window: &mut Window,
8377 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8378) {
8379 let editor = editor.clone();
8380 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8381 let action = action.downcast_ref().unwrap();
8382 if phase == DispatchPhase::Bubble {
8383 editor.update(cx, |editor, cx| {
8384 listener(editor, action, window, cx);
8385 })
8386 }
8387 })
8388}
8389
8390fn compute_auto_height_layout(
8391 editor: &mut Editor,
8392 max_lines: usize,
8393 max_line_number_width: Pixels,
8394 known_dimensions: Size<Option<Pixels>>,
8395 available_width: AvailableSpace,
8396 window: &mut Window,
8397 cx: &mut Context<Editor>,
8398) -> Option<Size<Pixels>> {
8399 let width = known_dimensions.width.or({
8400 if let AvailableSpace::Definite(available_width) = available_width {
8401 Some(available_width)
8402 } else {
8403 None
8404 }
8405 })?;
8406 if let Some(height) = known_dimensions.height {
8407 return Some(size(width, height));
8408 }
8409
8410 let style = editor.style.as_ref().unwrap();
8411 let font_id = window.text_system().resolve_font(&style.text.font());
8412 let font_size = style.text.font_size.to_pixels(window.rem_size());
8413 let line_height = style.text.line_height_in_pixels(window.rem_size());
8414 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8415
8416 let mut snapshot = editor.snapshot(window, cx);
8417 let gutter_dimensions = snapshot
8418 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8419 .unwrap_or_default();
8420
8421 editor.gutter_dimensions = gutter_dimensions;
8422 let text_width = width - gutter_dimensions.width;
8423 let overscroll = size(em_width, px(0.));
8424
8425 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8426 if editor.set_wrap_width(Some(editor_width), cx) {
8427 snapshot = editor.snapshot(window, cx);
8428 }
8429
8430 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8431 let height = scroll_height
8432 .max(line_height)
8433 .min(line_height * max_lines as f32);
8434
8435 Some(size(width, height))
8436}
8437
8438#[cfg(test)]
8439mod tests {
8440 use super::*;
8441 use crate::{
8442 display_map::{BlockPlacement, BlockProperties},
8443 editor_tests::{init_test, update_test_language_settings},
8444 Editor, MultiBuffer,
8445 };
8446 use gpui::{TestAppContext, VisualTestContext};
8447 use language::language_settings;
8448 use log::info;
8449 use std::num::NonZeroU32;
8450 use util::test::sample_text;
8451
8452 #[gpui::test]
8453 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8454 init_test(cx, |_| {});
8455 let window = cx.add_window(|window, cx| {
8456 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8457 Editor::new(EditorMode::Full, buffer, None, window, cx)
8458 });
8459
8460 let editor = window.root(cx).unwrap();
8461 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8462 let line_height = window
8463 .update(cx, |_, window, _| {
8464 style.text.line_height_in_pixels(window.rem_size())
8465 })
8466 .unwrap();
8467 let element = EditorElement::new(&editor, style);
8468 let snapshot = window
8469 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8470 .unwrap();
8471
8472 let layouts = cx
8473 .update_window(*window, |_, window, cx| {
8474 element.layout_line_numbers(
8475 None,
8476 GutterDimensions {
8477 left_padding: Pixels::ZERO,
8478 right_padding: Pixels::ZERO,
8479 width: px(30.0),
8480 margin: Pixels::ZERO,
8481 git_blame_entries_width: None,
8482 },
8483 line_height,
8484 gpui::Point::default(),
8485 DisplayRow(0)..DisplayRow(6),
8486 &(0..6)
8487 .map(|row| RowInfo {
8488 buffer_row: Some(row),
8489 ..Default::default()
8490 })
8491 .collect::<Vec<_>>(),
8492 &BTreeMap::default(),
8493 Some(DisplayPoint::new(DisplayRow(0), 0)),
8494 &snapshot,
8495 window,
8496 cx,
8497 )
8498 })
8499 .unwrap();
8500 assert_eq!(layouts.len(), 6);
8501
8502 let relative_rows = window
8503 .update(cx, |editor, window, cx| {
8504 let snapshot = editor.snapshot(window, cx);
8505 element.calculate_relative_line_numbers(
8506 &snapshot,
8507 &(DisplayRow(0)..DisplayRow(6)),
8508 Some(DisplayRow(3)),
8509 )
8510 })
8511 .unwrap();
8512 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8513 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8514 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8515 // current line has no relative number
8516 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8517 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8518
8519 // works if cursor is before screen
8520 let relative_rows = window
8521 .update(cx, |editor, window, cx| {
8522 let snapshot = editor.snapshot(window, cx);
8523 element.calculate_relative_line_numbers(
8524 &snapshot,
8525 &(DisplayRow(3)..DisplayRow(6)),
8526 Some(DisplayRow(1)),
8527 )
8528 })
8529 .unwrap();
8530 assert_eq!(relative_rows.len(), 3);
8531 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8532 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8533 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8534
8535 // works if cursor is after screen
8536 let relative_rows = window
8537 .update(cx, |editor, window, cx| {
8538 let snapshot = editor.snapshot(window, cx);
8539 element.calculate_relative_line_numbers(
8540 &snapshot,
8541 &(DisplayRow(0)..DisplayRow(3)),
8542 Some(DisplayRow(6)),
8543 )
8544 })
8545 .unwrap();
8546 assert_eq!(relative_rows.len(), 3);
8547 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8548 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8549 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8550 }
8551
8552 #[gpui::test]
8553 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8554 init_test(cx, |_| {});
8555
8556 let window = cx.add_window(|window, cx| {
8557 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8558 Editor::new(EditorMode::Full, buffer, None, window, cx)
8559 });
8560 let cx = &mut VisualTestContext::from_window(*window, cx);
8561 let editor = window.root(cx).unwrap();
8562 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8563
8564 window
8565 .update(cx, |editor, window, cx| {
8566 editor.cursor_shape = CursorShape::Block;
8567 editor.change_selections(None, window, cx, |s| {
8568 s.select_ranges([
8569 Point::new(0, 0)..Point::new(1, 0),
8570 Point::new(3, 2)..Point::new(3, 3),
8571 Point::new(5, 6)..Point::new(6, 0),
8572 ]);
8573 });
8574 })
8575 .unwrap();
8576
8577 let (_, state) = cx.draw(
8578 point(px(500.), px(500.)),
8579 size(px(500.), px(500.)),
8580 |_, _| EditorElement::new(&editor, style),
8581 );
8582
8583 assert_eq!(state.selections.len(), 1);
8584 let local_selections = &state.selections[0].1;
8585 assert_eq!(local_selections.len(), 3);
8586 // moves cursor back one line
8587 assert_eq!(
8588 local_selections[0].head,
8589 DisplayPoint::new(DisplayRow(0), 6)
8590 );
8591 assert_eq!(
8592 local_selections[0].range,
8593 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8594 );
8595
8596 // moves cursor back one column
8597 assert_eq!(
8598 local_selections[1].range,
8599 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8600 );
8601 assert_eq!(
8602 local_selections[1].head,
8603 DisplayPoint::new(DisplayRow(3), 2)
8604 );
8605
8606 // leaves cursor on the max point
8607 assert_eq!(
8608 local_selections[2].range,
8609 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8610 );
8611 assert_eq!(
8612 local_selections[2].head,
8613 DisplayPoint::new(DisplayRow(6), 0)
8614 );
8615
8616 // active lines does not include 1 (even though the range of the selection does)
8617 assert_eq!(
8618 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8619 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8620 );
8621 }
8622
8623 #[gpui::test]
8624 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8625 init_test(cx, |_| {});
8626
8627 let window = cx.add_window(|window, cx| {
8628 let buffer = MultiBuffer::build_simple("", cx);
8629 Editor::new(EditorMode::Full, buffer, None, window, cx)
8630 });
8631 let cx = &mut VisualTestContext::from_window(*window, cx);
8632 let editor = window.root(cx).unwrap();
8633 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8634 window
8635 .update(cx, |editor, window, cx| {
8636 editor.set_placeholder_text("hello", cx);
8637 editor.insert_blocks(
8638 [BlockProperties {
8639 style: BlockStyle::Fixed,
8640 placement: BlockPlacement::Above(Anchor::min()),
8641 height: 3,
8642 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8643 priority: 0,
8644 }],
8645 None,
8646 cx,
8647 );
8648
8649 // Blur the editor so that it displays placeholder text.
8650 window.blur();
8651 })
8652 .unwrap();
8653
8654 let (_, state) = cx.draw(
8655 point(px(500.), px(500.)),
8656 size(px(500.), px(500.)),
8657 |_, _| EditorElement::new(&editor, style),
8658 );
8659 assert_eq!(state.position_map.line_layouts.len(), 4);
8660 assert_eq!(state.line_numbers.len(), 1);
8661 assert_eq!(
8662 state
8663 .line_numbers
8664 .get(&MultiBufferRow(0))
8665 .map(|line_number| line_number.shaped_line.text.as_ref()),
8666 Some("1")
8667 );
8668 }
8669
8670 #[gpui::test]
8671 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8672 const TAB_SIZE: u32 = 4;
8673
8674 let input_text = "\t \t|\t| a b";
8675 let expected_invisibles = vec![
8676 Invisible::Tab {
8677 line_start_offset: 0,
8678 line_end_offset: TAB_SIZE as usize,
8679 },
8680 Invisible::Whitespace {
8681 line_offset: TAB_SIZE as usize,
8682 },
8683 Invisible::Tab {
8684 line_start_offset: TAB_SIZE as usize + 1,
8685 line_end_offset: TAB_SIZE as usize * 2,
8686 },
8687 Invisible::Tab {
8688 line_start_offset: TAB_SIZE as usize * 2 + 1,
8689 line_end_offset: TAB_SIZE as usize * 3,
8690 },
8691 Invisible::Whitespace {
8692 line_offset: TAB_SIZE as usize * 3 + 1,
8693 },
8694 Invisible::Whitespace {
8695 line_offset: TAB_SIZE as usize * 3 + 3,
8696 },
8697 ];
8698 assert_eq!(
8699 expected_invisibles.len(),
8700 input_text
8701 .chars()
8702 .filter(|initial_char| initial_char.is_whitespace())
8703 .count(),
8704 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8705 );
8706
8707 for show_line_numbers in [true, false] {
8708 init_test(cx, |s| {
8709 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8710 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8711 });
8712
8713 let actual_invisibles = collect_invisibles_from_new_editor(
8714 cx,
8715 EditorMode::Full,
8716 input_text,
8717 px(500.0),
8718 show_line_numbers,
8719 );
8720
8721 assert_eq!(expected_invisibles, actual_invisibles);
8722 }
8723 }
8724
8725 #[gpui::test]
8726 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8727 init_test(cx, |s| {
8728 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8729 s.defaults.tab_size = NonZeroU32::new(4);
8730 });
8731
8732 for editor_mode_without_invisibles in [
8733 EditorMode::SingleLine { auto_width: false },
8734 EditorMode::AutoHeight { max_lines: 100 },
8735 ] {
8736 for show_line_numbers in [true, false] {
8737 let invisibles = collect_invisibles_from_new_editor(
8738 cx,
8739 editor_mode_without_invisibles,
8740 "\t\t\t| | a b",
8741 px(500.0),
8742 show_line_numbers,
8743 );
8744 assert!(invisibles.is_empty(),
8745 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8746 }
8747 }
8748 }
8749
8750 #[gpui::test]
8751 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8752 let tab_size = 4;
8753 let input_text = "a\tbcd ".repeat(9);
8754 let repeated_invisibles = [
8755 Invisible::Tab {
8756 line_start_offset: 1,
8757 line_end_offset: tab_size as usize,
8758 },
8759 Invisible::Whitespace {
8760 line_offset: tab_size as usize + 3,
8761 },
8762 Invisible::Whitespace {
8763 line_offset: tab_size as usize + 4,
8764 },
8765 Invisible::Whitespace {
8766 line_offset: tab_size as usize + 5,
8767 },
8768 Invisible::Whitespace {
8769 line_offset: tab_size as usize + 6,
8770 },
8771 Invisible::Whitespace {
8772 line_offset: tab_size as usize + 7,
8773 },
8774 ];
8775 let expected_invisibles = std::iter::once(repeated_invisibles)
8776 .cycle()
8777 .take(9)
8778 .flatten()
8779 .collect::<Vec<_>>();
8780 assert_eq!(
8781 expected_invisibles.len(),
8782 input_text
8783 .chars()
8784 .filter(|initial_char| initial_char.is_whitespace())
8785 .count(),
8786 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8787 );
8788 info!("Expected invisibles: {expected_invisibles:?}");
8789
8790 init_test(cx, |_| {});
8791
8792 // Put the same string with repeating whitespace pattern into editors of various size,
8793 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8794 let resize_step = 10.0;
8795 let mut editor_width = 200.0;
8796 while editor_width <= 1000.0 {
8797 for show_line_numbers in [true, false] {
8798 update_test_language_settings(cx, |s| {
8799 s.defaults.tab_size = NonZeroU32::new(tab_size);
8800 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8801 s.defaults.preferred_line_length = Some(editor_width as u32);
8802 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8803 });
8804
8805 let actual_invisibles = collect_invisibles_from_new_editor(
8806 cx,
8807 EditorMode::Full,
8808 &input_text,
8809 px(editor_width),
8810 show_line_numbers,
8811 );
8812
8813 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8814 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8815 let mut i = 0;
8816 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8817 i = actual_index;
8818 match expected_invisibles.get(i) {
8819 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8820 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8821 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8822 _ => {
8823 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8824 }
8825 },
8826 None => {
8827 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8828 }
8829 }
8830 }
8831 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8832 assert!(
8833 missing_expected_invisibles.is_empty(),
8834 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8835 );
8836
8837 editor_width += resize_step;
8838 }
8839 }
8840 }
8841
8842 fn collect_invisibles_from_new_editor(
8843 cx: &mut TestAppContext,
8844 editor_mode: EditorMode,
8845 input_text: &str,
8846 editor_width: Pixels,
8847 show_line_numbers: bool,
8848 ) -> Vec<Invisible> {
8849 info!(
8850 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8851 editor_width.0
8852 );
8853 let window = cx.add_window(|window, cx| {
8854 let buffer = MultiBuffer::build_simple(input_text, cx);
8855 Editor::new(editor_mode, buffer, None, window, cx)
8856 });
8857 let cx = &mut VisualTestContext::from_window(*window, cx);
8858 let editor = window.root(cx).unwrap();
8859
8860 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8861 window
8862 .update(cx, |editor, _, cx| {
8863 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8864 editor.set_wrap_width(Some(editor_width), cx);
8865 editor.set_show_line_numbers(show_line_numbers, cx);
8866 })
8867 .unwrap();
8868 let (_, state) = cx.draw(
8869 point(px(500.), px(500.)),
8870 size(px(500.), px(500.)),
8871 |_, _| EditorElement::new(&editor, style),
8872 );
8873 state
8874 .position_map
8875 .line_layouts
8876 .iter()
8877 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8878 .cloned()
8879 .collect()
8880 }
8881}