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 time::Duration,
75};
76use sum_tree::Bias;
77use text::BufferId;
78use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
79use ui::{h_flex, prelude::*, ButtonLike, ContextMenu, KeyBinding, Tooltip, POPOVER_Y_PADDING};
80use unicode_segmentation::UnicodeSegmentation;
81use util::{debug_panic, RangeExt, ResultExt};
82use workspace::{item::Item, notifications::NotifyTaskExt};
83
84const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
85
86/// Determines what kinds of highlights should be applied to a lines background.
87#[derive(Clone, Copy, Default)]
88struct LineHighlightSpec {
89 selection: bool,
90 breakpoint: bool,
91 _active_stack_frame: bool,
92}
93
94struct SelectionLayout {
95 head: DisplayPoint,
96 cursor_shape: CursorShape,
97 is_newest: bool,
98 is_local: bool,
99 range: Range<DisplayPoint>,
100 active_rows: Range<DisplayRow>,
101 user_name: Option<SharedString>,
102}
103
104impl SelectionLayout {
105 fn new<T: ToPoint + ToDisplayPoint + Clone>(
106 selection: Selection<T>,
107 line_mode: bool,
108 cursor_shape: CursorShape,
109 map: &DisplaySnapshot,
110 is_newest: bool,
111 is_local: bool,
112 user_name: Option<SharedString>,
113 ) -> Self {
114 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
115 let display_selection = point_selection.map(|p| p.to_display_point(map));
116 let mut range = display_selection.range();
117 let mut head = display_selection.head();
118 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
119 ..map.next_line_boundary(point_selection.end).1.row();
120
121 // vim visual line mode
122 if line_mode {
123 let point_range = map.expand_to_line(point_selection.range());
124 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
125 }
126
127 // any vim visual mode (including line mode)
128 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
129 && !range.is_empty()
130 && !selection.reversed
131 {
132 if head.column() > 0 {
133 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
134 } else if head.row().0 > 0 && head != map.max_point() {
135 head = map.clip_point(
136 DisplayPoint::new(
137 head.row().previous_row(),
138 map.line_len(head.row().previous_row()),
139 ),
140 Bias::Left,
141 );
142 // updating range.end is a no-op unless you're cursor is
143 // on the newline containing a multi-buffer divider
144 // in which case the clip_point may have moved the head up
145 // an additional row.
146 range.end = DisplayPoint::new(head.row().next_row(), 0);
147 active_rows.end = head.row();
148 }
149 }
150
151 Self {
152 head,
153 cursor_shape,
154 is_newest,
155 is_local,
156 range,
157 active_rows,
158 user_name,
159 }
160 }
161}
162
163pub struct EditorElement {
164 editor: Entity<Editor>,
165 style: EditorStyle,
166}
167
168type DisplayRowDelta = u32;
169
170impl EditorElement {
171 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
172
173 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
174 Self {
175 editor: editor.clone(),
176 style,
177 }
178 }
179
180 fn register_actions(&self, window: &mut Window, cx: &mut App) {
181 let editor = &self.editor;
182 editor.update(cx, |editor, cx| {
183 for action in editor.editor_actions.borrow().values() {
184 (action)(window, cx)
185 }
186 });
187
188 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
189 crate::clangd_ext::apply_related_actions(editor, window, cx);
190
191 register_action(editor, window, Editor::open_context_menu);
192 register_action(editor, window, Editor::move_left);
193 register_action(editor, window, Editor::move_right);
194 register_action(editor, window, Editor::move_down);
195 register_action(editor, window, Editor::move_down_by_lines);
196 register_action(editor, window, Editor::select_down_by_lines);
197 register_action(editor, window, Editor::move_up);
198 register_action(editor, window, Editor::move_up_by_lines);
199 register_action(editor, window, Editor::select_up_by_lines);
200 register_action(editor, window, Editor::select_page_down);
201 register_action(editor, window, Editor::select_page_up);
202 register_action(editor, window, Editor::cancel);
203 register_action(editor, window, Editor::newline);
204 register_action(editor, window, Editor::newline_above);
205 register_action(editor, window, Editor::newline_below);
206 register_action(editor, window, Editor::backspace);
207 register_action(editor, window, Editor::delete);
208 register_action(editor, window, Editor::tab);
209 register_action(editor, window, Editor::backtab);
210 register_action(editor, window, Editor::indent);
211 register_action(editor, window, Editor::outdent);
212 register_action(editor, window, Editor::autoindent);
213 register_action(editor, window, Editor::delete_line);
214 register_action(editor, window, Editor::join_lines);
215 register_action(editor, window, Editor::sort_lines_case_sensitive);
216 register_action(editor, window, Editor::sort_lines_case_insensitive);
217 register_action(editor, window, Editor::reverse_lines);
218 register_action(editor, window, Editor::shuffle_lines);
219 register_action(editor, window, Editor::convert_to_upper_case);
220 register_action(editor, window, Editor::convert_to_lower_case);
221 register_action(editor, window, Editor::convert_to_title_case);
222 register_action(editor, window, Editor::convert_to_snake_case);
223 register_action(editor, window, Editor::convert_to_kebab_case);
224 register_action(editor, window, Editor::convert_to_upper_camel_case);
225 register_action(editor, window, Editor::convert_to_lower_camel_case);
226 register_action(editor, window, Editor::convert_to_opposite_case);
227 register_action(editor, window, Editor::delete_to_previous_word_start);
228 register_action(editor, window, Editor::delete_to_previous_subword_start);
229 register_action(editor, window, Editor::delete_to_next_word_end);
230 register_action(editor, window, Editor::delete_to_next_subword_end);
231 register_action(editor, window, Editor::delete_to_beginning_of_line);
232 register_action(editor, window, Editor::delete_to_end_of_line);
233 register_action(editor, window, Editor::cut_to_end_of_line);
234 register_action(editor, window, Editor::duplicate_line_up);
235 register_action(editor, window, Editor::duplicate_line_down);
236 register_action(editor, window, Editor::duplicate_selection);
237 register_action(editor, window, Editor::move_line_up);
238 register_action(editor, window, Editor::move_line_down);
239 register_action(editor, window, Editor::transpose);
240 register_action(editor, window, Editor::rewrap);
241 register_action(editor, window, Editor::cut);
242 register_action(editor, window, Editor::kill_ring_cut);
243 register_action(editor, window, Editor::kill_ring_yank);
244 register_action(editor, window, Editor::copy);
245 register_action(editor, window, Editor::copy_and_trim);
246 register_action(editor, window, Editor::paste);
247 register_action(editor, window, Editor::undo);
248 register_action(editor, window, Editor::redo);
249 register_action(editor, window, Editor::move_page_up);
250 register_action(editor, window, Editor::move_page_down);
251 register_action(editor, window, Editor::next_screen);
252 register_action(editor, window, Editor::scroll_cursor_top);
253 register_action(editor, window, Editor::scroll_cursor_center);
254 register_action(editor, window, Editor::scroll_cursor_bottom);
255 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
256 register_action(editor, window, |editor, _: &LineDown, window, cx| {
257 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
258 });
259 register_action(editor, window, |editor, _: &LineUp, window, cx| {
260 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
261 });
262 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
263 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
264 });
265 register_action(
266 editor,
267 window,
268 |editor, HandleInput(text): &HandleInput, window, cx| {
269 if text.is_empty() {
270 return;
271 }
272 editor.handle_input(text, window, cx);
273 },
274 );
275 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
276 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
277 });
278 register_action(editor, window, |editor, _: &PageDown, window, cx| {
279 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
280 });
281 register_action(editor, window, |editor, _: &PageUp, window, cx| {
282 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
283 });
284 register_action(editor, window, Editor::move_to_previous_word_start);
285 register_action(editor, window, Editor::move_to_previous_subword_start);
286 register_action(editor, window, Editor::move_to_next_word_end);
287 register_action(editor, window, Editor::move_to_next_subword_end);
288 register_action(editor, window, Editor::move_to_beginning_of_line);
289 register_action(editor, window, Editor::move_to_end_of_line);
290 register_action(editor, window, Editor::move_to_start_of_paragraph);
291 register_action(editor, window, Editor::move_to_end_of_paragraph);
292 register_action(editor, window, Editor::move_to_beginning);
293 register_action(editor, window, Editor::move_to_end);
294 register_action(editor, window, Editor::move_to_start_of_excerpt);
295 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
296 register_action(editor, window, Editor::move_to_end_of_excerpt);
297 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
298 register_action(editor, window, Editor::select_up);
299 register_action(editor, window, Editor::select_down);
300 register_action(editor, window, Editor::select_left);
301 register_action(editor, window, Editor::select_right);
302 register_action(editor, window, Editor::select_to_previous_word_start);
303 register_action(editor, window, Editor::select_to_previous_subword_start);
304 register_action(editor, window, Editor::select_to_next_word_end);
305 register_action(editor, window, Editor::select_to_next_subword_end);
306 register_action(editor, window, Editor::select_to_beginning_of_line);
307 register_action(editor, window, Editor::select_to_end_of_line);
308 register_action(editor, window, Editor::select_to_start_of_paragraph);
309 register_action(editor, window, Editor::select_to_end_of_paragraph);
310 register_action(editor, window, Editor::select_to_start_of_excerpt);
311 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
312 register_action(editor, window, Editor::select_to_end_of_excerpt);
313 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
314 register_action(editor, window, Editor::select_to_beginning);
315 register_action(editor, window, Editor::select_to_end);
316 register_action(editor, window, Editor::select_all);
317 register_action(editor, window, |editor, action, window, cx| {
318 editor.select_all_matches(action, window, cx).log_err();
319 });
320 register_action(editor, window, Editor::select_line);
321 register_action(editor, window, Editor::split_selection_into_lines);
322 register_action(editor, window, Editor::add_selection_above);
323 register_action(editor, window, Editor::add_selection_below);
324 register_action(editor, window, |editor, action, window, cx| {
325 editor.select_next(action, window, cx).log_err();
326 });
327 register_action(editor, window, |editor, action, window, cx| {
328 editor.select_previous(action, window, cx).log_err();
329 });
330 register_action(editor, window, Editor::toggle_comments);
331 register_action(editor, window, Editor::select_larger_syntax_node);
332 register_action(editor, window, Editor::select_smaller_syntax_node);
333 register_action(editor, window, Editor::select_enclosing_symbol);
334 register_action(editor, window, Editor::move_to_enclosing_bracket);
335 register_action(editor, window, Editor::undo_selection);
336 register_action(editor, window, Editor::redo_selection);
337 if !editor.read(cx).is_singleton(cx) {
338 register_action(editor, window, Editor::expand_excerpts);
339 register_action(editor, window, Editor::expand_excerpts_up);
340 register_action(editor, window, Editor::expand_excerpts_down);
341 }
342 register_action(editor, window, Editor::go_to_diagnostic);
343 register_action(editor, window, Editor::go_to_prev_diagnostic);
344 register_action(editor, window, Editor::go_to_next_hunk);
345 register_action(editor, window, Editor::go_to_prev_hunk);
346 register_action(editor, window, |editor, action, window, cx| {
347 editor
348 .go_to_definition(action, window, cx)
349 .detach_and_log_err(cx);
350 });
351 register_action(editor, window, |editor, action, window, cx| {
352 editor
353 .go_to_definition_split(action, window, cx)
354 .detach_and_log_err(cx);
355 });
356 register_action(editor, window, |editor, action, window, cx| {
357 editor
358 .go_to_declaration(action, window, cx)
359 .detach_and_log_err(cx);
360 });
361 register_action(editor, window, |editor, action, window, cx| {
362 editor
363 .go_to_declaration_split(action, window, cx)
364 .detach_and_log_err(cx);
365 });
366 register_action(editor, window, |editor, action, window, cx| {
367 editor
368 .go_to_implementation(action, window, cx)
369 .detach_and_log_err(cx);
370 });
371 register_action(editor, window, |editor, action, window, cx| {
372 editor
373 .go_to_implementation_split(action, window, cx)
374 .detach_and_log_err(cx);
375 });
376 register_action(editor, window, |editor, action, window, cx| {
377 editor
378 .go_to_type_definition(action, window, cx)
379 .detach_and_log_err(cx);
380 });
381 register_action(editor, window, |editor, action, window, cx| {
382 editor
383 .go_to_type_definition_split(action, window, cx)
384 .detach_and_log_err(cx);
385 });
386 register_action(editor, window, Editor::open_url);
387 register_action(editor, window, Editor::open_selected_filename);
388 register_action(editor, window, Editor::fold);
389 register_action(editor, window, Editor::fold_at_level);
390 register_action(editor, window, Editor::fold_all);
391 register_action(editor, window, Editor::fold_function_bodies);
392 register_action(editor, window, Editor::fold_at);
393 register_action(editor, window, Editor::fold_recursive);
394 register_action(editor, window, Editor::toggle_fold);
395 register_action(editor, window, Editor::toggle_fold_recursive);
396 register_action(editor, window, Editor::unfold_lines);
397 register_action(editor, window, Editor::unfold_recursive);
398 register_action(editor, window, Editor::unfold_all);
399 register_action(editor, window, Editor::unfold_at);
400 register_action(editor, window, Editor::fold_selected_ranges);
401 register_action(editor, window, Editor::set_mark);
402 register_action(editor, window, Editor::swap_selection_ends);
403 register_action(editor, window, Editor::show_completions);
404 register_action(editor, window, Editor::show_word_completions);
405 register_action(editor, window, Editor::toggle_code_actions);
406 register_action(editor, window, Editor::open_excerpts);
407 register_action(editor, window, Editor::open_excerpts_in_split);
408 register_action(editor, window, Editor::open_proposed_changes_editor);
409 register_action(editor, window, Editor::toggle_soft_wrap);
410 register_action(editor, window, Editor::toggle_tab_bar);
411 register_action(editor, window, Editor::toggle_line_numbers);
412 register_action(editor, window, Editor::toggle_relative_line_numbers);
413 register_action(editor, window, Editor::toggle_indent_guides);
414 register_action(editor, window, Editor::toggle_inlay_hints);
415 register_action(editor, window, Editor::toggle_edit_predictions);
416 register_action(editor, window, Editor::toggle_inline_diagnostics);
417 register_action(editor, window, hover_popover::hover);
418 register_action(editor, window, Editor::reveal_in_finder);
419 register_action(editor, window, Editor::copy_path);
420 register_action(editor, window, Editor::copy_relative_path);
421 register_action(editor, window, Editor::copy_file_name);
422 register_action(editor, window, Editor::copy_file_name_without_extension);
423 register_action(editor, window, Editor::copy_highlight_json);
424 register_action(editor, window, Editor::copy_permalink_to_line);
425 register_action(editor, window, Editor::open_permalink_to_line);
426 register_action(editor, window, Editor::copy_file_location);
427 register_action(editor, window, Editor::toggle_git_blame);
428 register_action(editor, window, Editor::toggle_git_blame_inline);
429 register_action(editor, window, Editor::toggle_selected_diff_hunks);
430 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
431 register_action(editor, window, Editor::stage_and_next);
432 register_action(editor, window, Editor::unstage_and_next);
433 register_action(editor, window, Editor::expand_all_diff_hunks);
434
435 register_action(editor, window, |editor, action, window, cx| {
436 if let Some(task) = editor.format(action, window, cx) {
437 task.detach_and_notify_err(window, cx);
438 } else {
439 cx.propagate();
440 }
441 });
442 register_action(editor, window, |editor, action, window, cx| {
443 if let Some(task) = editor.format_selections(action, window, cx) {
444 task.detach_and_notify_err(window, cx);
445 } else {
446 cx.propagate();
447 }
448 });
449 register_action(editor, window, |editor, action, window, cx| {
450 if let Some(task) = editor.organize_imports(action, window, cx) {
451 task.detach_and_notify_err(window, cx);
452 } else {
453 cx.propagate();
454 }
455 });
456 register_action(editor, window, Editor::restart_language_server);
457 register_action(editor, window, Editor::show_character_palette);
458 register_action(editor, window, |editor, action, window, cx| {
459 if let Some(task) = editor.confirm_completion(action, window, cx) {
460 task.detach_and_notify_err(window, cx);
461 } else {
462 cx.propagate();
463 }
464 });
465 register_action(editor, window, |editor, action, window, cx| {
466 if let Some(task) = editor.compose_completion(action, window, cx) {
467 task.detach_and_notify_err(window, cx);
468 } else {
469 cx.propagate();
470 }
471 });
472 register_action(editor, window, |editor, action, window, cx| {
473 if let Some(task) = editor.confirm_code_action(action, window, cx) {
474 task.detach_and_notify_err(window, cx);
475 } else {
476 cx.propagate();
477 }
478 });
479 register_action(editor, window, |editor, action, window, cx| {
480 if let Some(task) = editor.rename(action, window, cx) {
481 task.detach_and_notify_err(window, cx);
482 } else {
483 cx.propagate();
484 }
485 });
486 register_action(editor, window, |editor, action, window, cx| {
487 if let Some(task) = editor.confirm_rename(action, window, cx) {
488 task.detach_and_notify_err(window, cx);
489 } else {
490 cx.propagate();
491 }
492 });
493 register_action(editor, window, |editor, action, window, cx| {
494 if let Some(task) = editor.find_all_references(action, window, cx) {
495 task.detach_and_log_err(cx);
496 } else {
497 cx.propagate();
498 }
499 });
500 register_action(editor, window, Editor::show_signature_help);
501 register_action(editor, window, Editor::next_edit_prediction);
502 register_action(editor, window, Editor::previous_edit_prediction);
503 register_action(editor, window, Editor::show_inline_completion);
504 register_action(editor, window, Editor::context_menu_first);
505 register_action(editor, window, Editor::context_menu_prev);
506 register_action(editor, window, Editor::context_menu_next);
507 register_action(editor, window, Editor::context_menu_last);
508 register_action(editor, window, Editor::display_cursor_names);
509 register_action(editor, window, Editor::unique_lines_case_insensitive);
510 register_action(editor, window, Editor::unique_lines_case_sensitive);
511 register_action(editor, window, Editor::accept_partial_inline_completion);
512 register_action(editor, window, Editor::accept_edit_prediction);
513 register_action(editor, window, Editor::restore_file);
514 register_action(editor, window, Editor::git_restore);
515 register_action(editor, window, Editor::apply_all_diff_hunks);
516 register_action(editor, window, Editor::apply_selected_diff_hunks);
517 register_action(editor, window, Editor::open_active_item_in_terminal);
518 register_action(editor, window, Editor::reload_file);
519 register_action(editor, window, Editor::spawn_nearest_task);
520 register_action(editor, window, Editor::insert_uuid_v4);
521 register_action(editor, window, Editor::insert_uuid_v7);
522 register_action(editor, window, Editor::open_selections_in_multibuffer);
523 if cx.has_flag::<Debugger>() {
524 register_action(editor, window, Editor::toggle_breakpoint);
525 register_action(editor, window, Editor::edit_log_breakpoint);
526 register_action(editor, window, Editor::enable_breakpoint);
527 register_action(editor, window, Editor::disable_breakpoint);
528 }
529 }
530
531 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
532 let position_map = layout.position_map.clone();
533 window.on_key_event({
534 let editor = self.editor.clone();
535 move |event: &ModifiersChangedEvent, phase, window, cx| {
536 if phase != DispatchPhase::Bubble {
537 return;
538 }
539 editor.update(cx, |editor, cx| {
540 let inlay_hint_settings = inlay_hint_settings(
541 editor.selections.newest_anchor().head(),
542 &editor.buffer.read(cx).snapshot(cx),
543 cx,
544 );
545
546 if let Some(inlay_modifiers) = inlay_hint_settings
547 .toggle_on_modifiers_press
548 .as_ref()
549 .filter(|modifiers| modifiers.modified())
550 {
551 editor.refresh_inlay_hints(
552 InlayHintRefreshReason::ModifiersChanged(
553 inlay_modifiers == &event.modifiers,
554 ),
555 cx,
556 );
557 }
558
559 if editor.hover_state.focused(window, cx) {
560 return;
561 }
562
563 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
564 })
565 }
566 });
567 }
568
569 fn mouse_left_down(
570 editor: &mut Editor,
571 event: &MouseDownEvent,
572 hovered_hunk: Option<Range<Anchor>>,
573 position_map: &PositionMap,
574 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
575 window: &mut Window,
576 cx: &mut Context<Editor>,
577 ) {
578 if window.default_prevented() {
579 return;
580 }
581
582 let text_hitbox = &position_map.text_hitbox;
583 let gutter_hitbox = &position_map.gutter_hitbox;
584 let mut click_count = event.click_count;
585 let mut modifiers = event.modifiers;
586
587 if let Some(hovered_hunk) = hovered_hunk {
588 editor.toggle_single_diff_hunk(hovered_hunk, cx);
589 cx.notify();
590 return;
591 } else if gutter_hitbox.is_hovered(window) {
592 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
593 } else if !text_hitbox.is_hovered(window) {
594 return;
595 }
596
597 let is_singleton = editor.buffer().read(cx).is_singleton();
598
599 if click_count == 2 && !is_singleton {
600 match EditorSettings::get_global(cx).double_click_in_multibuffer {
601 DoubleClickInMultibuffer::Select => {
602 // do nothing special on double click, all selection logic is below
603 }
604 DoubleClickInMultibuffer::Open => {
605 if modifiers.alt {
606 // if double click is made with alt, pretend it's a regular double click without opening and alt,
607 // and run the selection logic.
608 modifiers.alt = false;
609 } else {
610 let scroll_position_row =
611 position_map.scroll_pixel_position.y / position_map.line_height;
612 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
613 + position_map.scroll_pixel_position.y)
614 / position_map.line_height)
615 as u32;
616 let multi_buffer_row = position_map
617 .snapshot
618 .display_point_to_point(
619 DisplayPoint::new(DisplayRow(display_row), 0),
620 Bias::Right,
621 )
622 .row;
623 let line_offset_from_top = display_row - scroll_position_row as u32;
624 // if double click is made without alt, open the corresponding excerp
625 editor.open_excerpts_common(
626 Some(JumpData::MultiBufferRow {
627 row: MultiBufferRow(multi_buffer_row),
628 line_offset_from_top,
629 }),
630 false,
631 window,
632 cx,
633 );
634 return;
635 }
636 }
637 }
638 }
639
640 let point_for_position = position_map.point_for_position(event.position);
641 let position = point_for_position.previous_valid;
642 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
643 editor.select(
644 SelectPhase::BeginColumnar {
645 position,
646 reset: false,
647 goal_column: point_for_position.exact_unclipped.column(),
648 },
649 window,
650 cx,
651 );
652 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
653 {
654 editor.select(
655 SelectPhase::Extend {
656 position,
657 click_count,
658 },
659 window,
660 cx,
661 );
662 } else {
663 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
664 let multi_cursor_modifier = match multi_cursor_setting {
665 MultiCursorModifier::Alt => modifiers.alt,
666 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
667 };
668 editor.select(
669 SelectPhase::Begin {
670 position,
671 add: multi_cursor_modifier,
672 click_count,
673 },
674 window,
675 cx,
676 );
677 }
678 cx.stop_propagation();
679
680 if !is_singleton {
681 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
682 + position_map.scroll_pixel_position.y)
683 / position_map.line_height) as u32;
684 let multi_buffer_row = position_map
685 .snapshot
686 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
687 .row;
688 if line_numbers
689 .get(&MultiBufferRow(multi_buffer_row))
690 .and_then(|line_number| line_number.hitbox.as_ref())
691 .is_some_and(|hitbox| hitbox.contains(&event.position))
692 {
693 let scroll_position_row =
694 position_map.scroll_pixel_position.y / position_map.line_height;
695 let line_offset_from_top = display_row - scroll_position_row as u32;
696
697 editor.open_excerpts_common(
698 Some(JumpData::MultiBufferRow {
699 row: MultiBufferRow(multi_buffer_row),
700 line_offset_from_top,
701 }),
702 modifiers.alt,
703 window,
704 cx,
705 );
706 cx.stop_propagation();
707 }
708 }
709 }
710
711 fn mouse_right_down(
712 editor: &mut Editor,
713 event: &MouseDownEvent,
714 position_map: &PositionMap,
715 window: &mut Window,
716 cx: &mut Context<Editor>,
717 ) {
718 if position_map.gutter_hitbox.is_hovered(window) {
719 let gutter_right_padding = editor.gutter_dimensions.right_padding;
720 let hitbox = &position_map.gutter_hitbox;
721
722 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
723 let point_for_position = position_map.point_for_position(event.position);
724 editor.set_breakpoint_context_menu(
725 point_for_position.previous_valid.row(),
726 None,
727 event.position,
728 window,
729 cx,
730 );
731 }
732 return;
733 }
734
735 if !position_map.text_hitbox.is_hovered(window) {
736 return;
737 }
738
739 let point_for_position = position_map.point_for_position(event.position);
740 mouse_context_menu::deploy_context_menu(
741 editor,
742 Some(event.position),
743 point_for_position.previous_valid,
744 window,
745 cx,
746 );
747 cx.stop_propagation();
748 }
749
750 fn mouse_middle_down(
751 editor: &mut Editor,
752 event: &MouseDownEvent,
753 position_map: &PositionMap,
754 window: &mut Window,
755 cx: &mut Context<Editor>,
756 ) {
757 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
758 return;
759 }
760
761 let point_for_position = position_map.point_for_position(event.position);
762 let position = point_for_position.previous_valid;
763
764 editor.select(
765 SelectPhase::BeginColumnar {
766 position,
767 reset: true,
768 goal_column: point_for_position.exact_unclipped.column(),
769 },
770 window,
771 cx,
772 );
773 }
774
775 fn mouse_up(
776 editor: &mut Editor,
777 event: &MouseUpEvent,
778 position_map: &PositionMap,
779 window: &mut Window,
780 cx: &mut Context<Editor>,
781 ) {
782 let text_hitbox = &position_map.text_hitbox;
783 let end_selection = editor.has_pending_selection();
784 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
785
786 if end_selection {
787 editor.select(SelectPhase::End, window, cx);
788 }
789
790 if end_selection && pending_nonempty_selections {
791 cx.stop_propagation();
792 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
793 && event.button == MouseButton::Middle
794 {
795 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
796 return;
797 }
798
799 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
800 if EditorSettings::get_global(cx).middle_click_paste {
801 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
802 let point_for_position = position_map.point_for_position(event.position);
803 let position = point_for_position.previous_valid;
804
805 editor.select(
806 SelectPhase::Begin {
807 position,
808 add: false,
809 click_count: 1,
810 },
811 window,
812 cx,
813 );
814 editor.insert(&text, window, cx);
815 }
816 cx.stop_propagation()
817 }
818 }
819 }
820
821 fn click(
822 editor: &mut Editor,
823 event: &ClickEvent,
824 position_map: &PositionMap,
825 window: &mut Window,
826 cx: &mut Context<Editor>,
827 ) {
828 let text_hitbox = &position_map.text_hitbox;
829 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
830
831 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
832 let multi_cursor_modifier = match multi_cursor_setting {
833 MultiCursorModifier::Alt => event.modifiers().secondary(),
834 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
835 };
836
837 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
838 let point = position_map.point_for_position(event.up.position);
839 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
840
841 cx.stop_propagation();
842 }
843 }
844
845 fn mouse_dragged(
846 editor: &mut Editor,
847 event: &MouseMoveEvent,
848 position_map: &PositionMap,
849 window: &mut Window,
850 cx: &mut Context<Editor>,
851 ) {
852 if !editor.has_pending_selection() {
853 return;
854 }
855
856 let text_bounds = position_map.text_hitbox.bounds;
857 let point_for_position = position_map.point_for_position(event.position);
858 let mut scroll_delta = gpui::Point::<f32>::default();
859 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
860 let top = text_bounds.origin.y + vertical_margin;
861 let bottom = text_bounds.bottom_left().y - vertical_margin;
862 if event.position.y < top {
863 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
864 }
865 if event.position.y > bottom {
866 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
867 }
868
869 // We need horizontal width of text
870 let style = editor.style.clone().unwrap_or_default();
871 let font_id = window.text_system().resolve_font(&style.text.font());
872 let font_size = style.text.font_size.to_pixels(window.rem_size());
873 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
874
875 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
876
877 let scroll_space: Pixels = scroll_margin_x * em_width;
878
879 let left = text_bounds.origin.x + scroll_space;
880 let right = text_bounds.top_right().x - scroll_space;
881
882 if event.position.x < left {
883 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
884 }
885 if event.position.x > right {
886 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
887 }
888
889 editor.select(
890 SelectPhase::Update {
891 position: point_for_position.previous_valid,
892 goal_column: point_for_position.exact_unclipped.column(),
893 scroll_delta,
894 },
895 window,
896 cx,
897 );
898 }
899
900 fn mouse_moved(
901 editor: &mut Editor,
902 event: &MouseMoveEvent,
903 position_map: &PositionMap,
904 window: &mut Window,
905 cx: &mut Context<Editor>,
906 ) {
907 let text_hitbox = &position_map.text_hitbox;
908 let gutter_hitbox = &position_map.gutter_hitbox;
909 let modifiers = event.modifiers;
910 let gutter_hovered = gutter_hitbox.is_hovered(window);
911 editor.set_gutter_hovered(gutter_hovered, cx);
912 editor.mouse_cursor_hidden = false;
913
914 if gutter_hovered {
915 let new_point = position_map
916 .point_for_position(event.position)
917 .previous_valid;
918 let buffer_anchor = position_map
919 .snapshot
920 .display_point_to_anchor(new_point, Bias::Left);
921
922 if position_map
923 .snapshot
924 .buffer_snapshot
925 .buffer_for_excerpt(buffer_anchor.excerpt_id)
926 .is_some_and(|buffer| buffer.file().is_some())
927 {
928 let was_hovered = editor.gutter_breakpoint_indicator.0.is_some();
929 let is_visible = editor
930 .gutter_breakpoint_indicator
931 .0
932 .map_or(false, |(_, is_active)| is_active);
933 editor.gutter_breakpoint_indicator.0 = Some((new_point, is_visible));
934
935 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
936 cx.spawn(async move |this, cx| {
937 if !was_hovered {
938 cx.background_executor()
939 .timer(Duration::from_millis(200))
940 .await;
941 }
942
943 this.update(cx, |this, cx| {
944 if let Some((_, is_active)) =
945 this.gutter_breakpoint_indicator.0.as_mut()
946 {
947 *is_active = true;
948 }
949
950 cx.notify();
951 })
952 .ok();
953 })
954 });
955 } else {
956 editor.gutter_breakpoint_indicator = (None, None);
957 }
958 } else {
959 editor.gutter_breakpoint_indicator = (None, None);
960 }
961
962 cx.notify();
963
964 // Don't trigger hover popover if mouse is hovering over context menu
965 if text_hitbox.is_hovered(window) {
966 let point_for_position = position_map.point_for_position(event.position);
967
968 editor.update_hovered_link(
969 point_for_position,
970 &position_map.snapshot,
971 modifiers,
972 window,
973 cx,
974 );
975
976 if let Some(point) = point_for_position.as_valid() {
977 let anchor = position_map
978 .snapshot
979 .buffer_snapshot
980 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
981 hover_at(editor, Some(anchor), window, cx);
982 Self::update_visible_cursor(editor, point, position_map, window, cx);
983 } else {
984 hover_at(editor, None, window, cx);
985 }
986 } else {
987 editor.hide_hovered_link(cx);
988 hover_at(editor, None, window, cx);
989 if gutter_hovered {
990 cx.stop_propagation();
991 }
992 }
993 }
994
995 fn update_visible_cursor(
996 editor: &mut Editor,
997 point: DisplayPoint,
998 position_map: &PositionMap,
999 window: &mut Window,
1000 cx: &mut Context<Editor>,
1001 ) {
1002 let snapshot = &position_map.snapshot;
1003 let Some(hub) = editor.collaboration_hub() else {
1004 return;
1005 };
1006 let start = snapshot.display_snapshot.clip_point(
1007 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1008 Bias::Left,
1009 );
1010 let end = snapshot.display_snapshot.clip_point(
1011 DisplayPoint::new(
1012 point.row(),
1013 (point.column() + 1).min(snapshot.line_len(point.row())),
1014 ),
1015 Bias::Right,
1016 );
1017
1018 let range = snapshot
1019 .buffer_snapshot
1020 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1021 ..snapshot
1022 .buffer_snapshot
1023 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1024
1025 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1026 return;
1027 };
1028 let key = crate::HoveredCursor {
1029 replica_id: selection.replica_id,
1030 selection_id: selection.selection.id,
1031 };
1032 editor.hovered_cursors.insert(
1033 key.clone(),
1034 cx.spawn_in(window, async move |editor, cx| {
1035 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1036 editor
1037 .update(cx, |editor, cx| {
1038 editor.hovered_cursors.remove(&key);
1039 cx.notify();
1040 })
1041 .ok();
1042 }),
1043 );
1044 cx.notify()
1045 }
1046
1047 fn layout_selections(
1048 &self,
1049 start_anchor: Anchor,
1050 end_anchor: Anchor,
1051 local_selections: &[Selection<Point>],
1052 snapshot: &EditorSnapshot,
1053 start_row: DisplayRow,
1054 end_row: DisplayRow,
1055 window: &mut Window,
1056 cx: &mut App,
1057 ) -> (
1058 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1059 BTreeMap<DisplayRow, LineHighlightSpec>,
1060 Option<DisplayPoint>,
1061 ) {
1062 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1063 let mut active_rows = BTreeMap::new();
1064 let mut newest_selection_head = None;
1065 self.editor.update(cx, |editor, cx| {
1066 if editor.show_local_selections {
1067 let mut layouts = Vec::new();
1068 let newest = editor.selections.newest(cx);
1069 for selection in local_selections.iter().cloned() {
1070 let is_empty = selection.start == selection.end;
1071 let is_newest = selection == newest;
1072
1073 let layout = SelectionLayout::new(
1074 selection,
1075 editor.selections.line_mode,
1076 editor.cursor_shape,
1077 &snapshot.display_snapshot,
1078 is_newest,
1079 editor.leader_peer_id.is_none(),
1080 None,
1081 );
1082 if is_newest {
1083 newest_selection_head = Some(layout.head);
1084 }
1085
1086 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1087 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1088 {
1089 let contains_non_empty_selection = active_rows
1090 .entry(DisplayRow(row))
1091 .or_insert_with(LineHighlightSpec::default);
1092 contains_non_empty_selection.selection |= !is_empty;
1093 }
1094 layouts.push(layout);
1095 }
1096
1097 let player = editor.current_user_player_color(cx);
1098 selections.push((player, layouts));
1099 }
1100
1101 if let Some(collaboration_hub) = &editor.collaboration_hub {
1102 // When following someone, render the local selections in their color.
1103 if let Some(leader_id) = editor.leader_peer_id {
1104 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1105 {
1106 if let Some(participant_index) = collaboration_hub
1107 .user_participant_indices(cx)
1108 .get(&collaborator.user_id)
1109 {
1110 if let Some((local_selection_style, _)) = selections.first_mut() {
1111 *local_selection_style = cx
1112 .theme()
1113 .players()
1114 .color_for_participant(participant_index.0);
1115 }
1116 }
1117 }
1118 }
1119
1120 let mut remote_selections = HashMap::default();
1121 for selection in snapshot.remote_selections_in_range(
1122 &(start_anchor..end_anchor),
1123 collaboration_hub.as_ref(),
1124 cx,
1125 ) {
1126 let selection_style =
1127 Self::get_participant_color(selection.participant_index, cx);
1128
1129 // Don't re-render the leader's selections, since the local selections
1130 // match theirs.
1131 if Some(selection.peer_id) == editor.leader_peer_id {
1132 continue;
1133 }
1134 let key = HoveredCursor {
1135 replica_id: selection.replica_id,
1136 selection_id: selection.selection.id,
1137 };
1138
1139 let is_shown =
1140 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1141
1142 remote_selections
1143 .entry(selection.replica_id)
1144 .or_insert((selection_style, Vec::new()))
1145 .1
1146 .push(SelectionLayout::new(
1147 selection.selection,
1148 selection.line_mode,
1149 selection.cursor_shape,
1150 &snapshot.display_snapshot,
1151 false,
1152 false,
1153 if is_shown { selection.user_name } else { None },
1154 ));
1155 }
1156
1157 selections.extend(remote_selections.into_values());
1158 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1159 let layouts = snapshot
1160 .buffer_snapshot
1161 .selections_in_range(&(start_anchor..end_anchor), true)
1162 .map(move |(_, line_mode, cursor_shape, selection)| {
1163 SelectionLayout::new(
1164 selection,
1165 line_mode,
1166 cursor_shape,
1167 &snapshot.display_snapshot,
1168 false,
1169 false,
1170 None,
1171 )
1172 })
1173 .collect::<Vec<_>>();
1174 let player = editor.current_user_player_color(cx);
1175 selections.push((player, layouts));
1176 }
1177 });
1178 (selections, active_rows, newest_selection_head)
1179 }
1180
1181 fn collect_cursors(
1182 &self,
1183 snapshot: &EditorSnapshot,
1184 cx: &mut App,
1185 ) -> Vec<(DisplayPoint, Hsla)> {
1186 let editor = self.editor.read(cx);
1187 let mut cursors = Vec::new();
1188 let mut skip_local = false;
1189 let mut add_cursor = |anchor: Anchor, color| {
1190 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1191 };
1192 // Remote cursors
1193 if let Some(collaboration_hub) = &editor.collaboration_hub {
1194 for remote_selection in snapshot.remote_selections_in_range(
1195 &(Anchor::min()..Anchor::max()),
1196 collaboration_hub.deref(),
1197 cx,
1198 ) {
1199 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1200 add_cursor(remote_selection.selection.head(), color.cursor);
1201 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1202 skip_local = true;
1203 }
1204 }
1205 }
1206 // Local cursors
1207 if !skip_local {
1208 let color = cx.theme().players().local().cursor;
1209 editor.selections.disjoint.iter().for_each(|selection| {
1210 add_cursor(selection.head(), color);
1211 });
1212 if let Some(ref selection) = editor.selections.pending_anchor() {
1213 add_cursor(selection.head(), color);
1214 }
1215 }
1216 cursors
1217 }
1218
1219 fn layout_visible_cursors(
1220 &self,
1221 snapshot: &EditorSnapshot,
1222 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1223 block_start_rows: &HashSet<DisplayRow>,
1224 visible_display_row_range: Range<DisplayRow>,
1225 line_layouts: &[LineWithInvisibles],
1226 text_hitbox: &Hitbox,
1227 content_origin: gpui::Point<Pixels>,
1228 scroll_position: gpui::Point<f32>,
1229 scroll_pixel_position: gpui::Point<Pixels>,
1230 line_height: Pixels,
1231 em_width: Pixels,
1232 em_advance: Pixels,
1233 autoscroll_containing_element: bool,
1234 window: &mut Window,
1235 cx: &mut App,
1236 ) -> Vec<CursorLayout> {
1237 let mut autoscroll_bounds = None;
1238 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1239 let mut cursors = Vec::new();
1240
1241 let show_local_cursors = editor.show_local_cursors(window, cx);
1242
1243 for (player_color, selections) in selections {
1244 for selection in selections {
1245 let cursor_position = selection.head;
1246
1247 let in_range = visible_display_row_range.contains(&cursor_position.row());
1248 if (selection.is_local && !show_local_cursors)
1249 || !in_range
1250 || block_start_rows.contains(&cursor_position.row())
1251 {
1252 continue;
1253 }
1254
1255 let cursor_row_layout = &line_layouts
1256 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1257 let cursor_column = cursor_position.column() as usize;
1258
1259 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1260 let mut block_width =
1261 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1262 if block_width == Pixels::ZERO {
1263 block_width = em_advance;
1264 }
1265 let block_text = if let CursorShape::Block = selection.cursor_shape {
1266 snapshot
1267 .grapheme_at(cursor_position)
1268 .or_else(|| {
1269 if cursor_column == 0 {
1270 snapshot.placeholder_text().and_then(|s| {
1271 s.graphemes(true).next().map(|s| s.to_string().into())
1272 })
1273 } else {
1274 None
1275 }
1276 })
1277 .and_then(|text| {
1278 let len = text.len();
1279
1280 let font = cursor_row_layout
1281 .font_id_for_index(cursor_column)
1282 .and_then(|cursor_font_id| {
1283 window.text_system().get_font_for_id(cursor_font_id)
1284 })
1285 .unwrap_or(self.style.text.font());
1286
1287 // Invert the text color for the block cursor. Ensure that the text
1288 // color is opaque enough to be visible against the background color.
1289 //
1290 // 0.75 is an arbitrary threshold to determine if the background color is
1291 // opaque enough to use as a text color.
1292 //
1293 // TODO: In the future we should ensure themes have a `text_inverse` color.
1294 let color = if cx.theme().colors().editor_background.a < 0.75 {
1295 match cx.theme().appearance {
1296 Appearance::Dark => Hsla::black(),
1297 Appearance::Light => Hsla::white(),
1298 }
1299 } else {
1300 cx.theme().colors().editor_background
1301 };
1302
1303 window
1304 .text_system()
1305 .shape_line(
1306 text,
1307 cursor_row_layout.font_size,
1308 &[TextRun {
1309 len,
1310 font,
1311 color,
1312 background_color: None,
1313 strikethrough: None,
1314 underline: None,
1315 }],
1316 )
1317 .log_err()
1318 })
1319 } else {
1320 None
1321 };
1322
1323 let x = cursor_character_x - scroll_pixel_position.x;
1324 let y = (cursor_position.row().as_f32()
1325 - scroll_pixel_position.y / line_height)
1326 * line_height;
1327 if selection.is_newest {
1328 editor.pixel_position_of_newest_cursor = Some(point(
1329 text_hitbox.origin.x + x + block_width / 2.,
1330 text_hitbox.origin.y + y + line_height / 2.,
1331 ));
1332
1333 if autoscroll_containing_element {
1334 let top = text_hitbox.origin.y
1335 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1336 * line_height;
1337 let left = text_hitbox.origin.x
1338 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1339 .max(0.)
1340 * em_width;
1341
1342 let bottom = text_hitbox.origin.y
1343 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1344 * line_height;
1345 let right = text_hitbox.origin.x
1346 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1347 * em_width;
1348
1349 autoscroll_bounds =
1350 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1351 }
1352 }
1353
1354 let mut cursor = CursorLayout {
1355 color: player_color.cursor,
1356 block_width,
1357 origin: point(x, y),
1358 line_height,
1359 shape: selection.cursor_shape,
1360 block_text,
1361 cursor_name: None,
1362 };
1363 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1364 string: name,
1365 color: self.style.background,
1366 is_top_row: cursor_position.row().0 == 0,
1367 });
1368 cursor.layout(content_origin, cursor_name, window, cx);
1369 cursors.push(cursor);
1370 }
1371 }
1372
1373 cursors
1374 });
1375
1376 if let Some(bounds) = autoscroll_bounds {
1377 window.request_autoscroll(bounds);
1378 }
1379
1380 cursor_layouts
1381 }
1382
1383 fn layout_scrollbars(
1384 &self,
1385 snapshot: &EditorSnapshot,
1386 scrollbar_layout_information: ScrollbarLayoutInformation,
1387 content_offset: gpui::Point<Pixels>,
1388 scroll_position: gpui::Point<f32>,
1389 non_visible_cursors: bool,
1390 window: &mut Window,
1391 cx: &mut App,
1392 ) -> Option<EditorScrollbars> {
1393 if snapshot.mode != EditorMode::Full {
1394 return None;
1395 }
1396
1397 // If a drag took place after we started dragging the scrollbar,
1398 // cancel the scrollbar drag.
1399 if cx.has_active_drag() {
1400 self.editor.update(cx, |editor, cx| {
1401 editor.scroll_manager.reset_scrollbar_dragging_state(cx)
1402 });
1403 }
1404
1405 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1406 let show_scrollbars = self.editor.read(cx).show_scrollbars
1407 && match scrollbar_settings.show {
1408 ShowScrollbar::Auto => {
1409 let editor = self.editor.read(cx);
1410 let is_singleton = editor.is_singleton(cx);
1411 // Git
1412 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1413 ||
1414 // Buffer Search Results
1415 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1416 ||
1417 // Selected Text Occurrences
1418 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1419 ||
1420 // Selected Symbol Occurrences
1421 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1422 ||
1423 // Diagnostics
1424 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1425 ||
1426 // Cursors out of sight
1427 non_visible_cursors
1428 ||
1429 // Scrollmanager
1430 editor.scroll_manager.scrollbars_visible()
1431 }
1432 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1433 ShowScrollbar::Always => true,
1434 ShowScrollbar::Never => return None,
1435 };
1436
1437 Some(EditorScrollbars::from_scrollbar_axes(
1438 scrollbar_settings.axes,
1439 &scrollbar_layout_information,
1440 content_offset,
1441 scroll_position,
1442 self.style.scrollbar_width,
1443 show_scrollbars,
1444 window,
1445 ))
1446 }
1447
1448 fn prepaint_crease_toggles(
1449 &self,
1450 crease_toggles: &mut [Option<AnyElement>],
1451 line_height: Pixels,
1452 gutter_dimensions: &GutterDimensions,
1453 gutter_settings: crate::editor_settings::Gutter,
1454 scroll_pixel_position: gpui::Point<Pixels>,
1455 gutter_hitbox: &Hitbox,
1456 window: &mut Window,
1457 cx: &mut App,
1458 ) {
1459 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1460 if let Some(crease_toggle) = crease_toggle {
1461 debug_assert!(gutter_settings.folds);
1462 let available_space = size(
1463 AvailableSpace::MinContent,
1464 AvailableSpace::Definite(line_height * 0.55),
1465 );
1466 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1467
1468 let position = point(
1469 gutter_dimensions.width - gutter_dimensions.right_padding,
1470 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1471 );
1472 let centering_offset = point(
1473 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1474 (line_height - crease_toggle_size.height) / 2.,
1475 );
1476 let origin = gutter_hitbox.origin + position + centering_offset;
1477 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1478 }
1479 }
1480 }
1481
1482 fn prepaint_expand_toggles(
1483 &self,
1484 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1485 window: &mut Window,
1486 cx: &mut App,
1487 ) {
1488 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1489 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1490 expand_toggle.layout_as_root(available_space, window, cx);
1491 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1492 }
1493 }
1494
1495 fn prepaint_crease_trailers(
1496 &self,
1497 trailers: Vec<Option<AnyElement>>,
1498 lines: &[LineWithInvisibles],
1499 line_height: Pixels,
1500 content_origin: gpui::Point<Pixels>,
1501 scroll_pixel_position: gpui::Point<Pixels>,
1502 em_width: Pixels,
1503 window: &mut Window,
1504 cx: &mut App,
1505 ) -> Vec<Option<CreaseTrailerLayout>> {
1506 trailers
1507 .into_iter()
1508 .enumerate()
1509 .map(|(ix, element)| {
1510 let mut element = element?;
1511 let available_space = size(
1512 AvailableSpace::MinContent,
1513 AvailableSpace::Definite(line_height),
1514 );
1515 let size = element.layout_as_root(available_space, window, cx);
1516
1517 let line = &lines[ix];
1518 let padding = if line.width == Pixels::ZERO {
1519 Pixels::ZERO
1520 } else {
1521 4. * em_width
1522 };
1523 let position = point(
1524 scroll_pixel_position.x + line.width + padding,
1525 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1526 );
1527 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1528 let origin = content_origin + position + centering_offset;
1529 element.prepaint_as_root(origin, available_space, window, cx);
1530 Some(CreaseTrailerLayout {
1531 element,
1532 bounds: Bounds::new(origin, size),
1533 })
1534 })
1535 .collect()
1536 }
1537
1538 // Folds contained in a hunk are ignored apart from shrinking visual size
1539 // If a fold contains any hunks then that fold line is marked as modified
1540 fn layout_gutter_diff_hunks(
1541 &self,
1542 line_height: Pixels,
1543 gutter_hitbox: &Hitbox,
1544 display_rows: Range<DisplayRow>,
1545 snapshot: &EditorSnapshot,
1546 window: &mut Window,
1547 cx: &mut App,
1548 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1549 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1550 let mut display_hunks = snapshot
1551 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1552 .map(|hunk| (hunk, None))
1553 .collect::<Vec<_>>();
1554 let git_gutter_setting = ProjectSettings::get_global(cx)
1555 .git
1556 .git_gutter
1557 .unwrap_or_default();
1558 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1559 for (hunk, hitbox) in &mut display_hunks {
1560 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1561 let hunk_bounds =
1562 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1563 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1564 }
1565 }
1566 }
1567
1568 display_hunks
1569 }
1570
1571 fn layout_inline_diagnostics(
1572 &self,
1573 line_layouts: &[LineWithInvisibles],
1574 crease_trailers: &[Option<CreaseTrailerLayout>],
1575 content_origin: gpui::Point<Pixels>,
1576 scroll_pixel_position: gpui::Point<Pixels>,
1577 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1578 start_row: DisplayRow,
1579 end_row: DisplayRow,
1580 line_height: Pixels,
1581 em_width: Pixels,
1582 style: &EditorStyle,
1583 window: &mut Window,
1584 cx: &mut App,
1585 ) -> HashMap<DisplayRow, AnyElement> {
1586 let max_severity = ProjectSettings::get_global(cx)
1587 .diagnostics
1588 .inline
1589 .max_severity
1590 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1591 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1592 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1593 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1594 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1595 });
1596
1597 let active_diagnostics_group = self
1598 .editor
1599 .read(cx)
1600 .active_diagnostics
1601 .as_ref()
1602 .map(|active_diagnostics| active_diagnostics.group_id);
1603
1604 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1605 let snapshot = editor.snapshot(window, cx);
1606 editor
1607 .inline_diagnostics
1608 .iter()
1609 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1610 .filter(|(_, diagnostic)| match active_diagnostics_group {
1611 Some(active_diagnostics_group) => {
1612 // Active diagnostics are all shown in the editor already, no need to display them inline
1613 diagnostic.group_id != active_diagnostics_group
1614 }
1615 None => true,
1616 })
1617 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1618 .skip_while(|(point, _)| point.row() < start_row)
1619 .take_while(|(point, _)| point.row() < end_row)
1620 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1621 acc.entry(point.row())
1622 .or_insert_with(Vec::new)
1623 .push(diagnostic);
1624 acc
1625 })
1626 });
1627
1628 if diagnostics_by_rows.is_empty() {
1629 return HashMap::default();
1630 }
1631
1632 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1633 &DiagnosticSeverity::ERROR => Color::Error,
1634 &DiagnosticSeverity::WARNING => Color::Warning,
1635 &DiagnosticSeverity::INFORMATION => Color::Info,
1636 &DiagnosticSeverity::HINT => Color::Hint,
1637 _ => Color::Error,
1638 };
1639
1640 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1641 let min_x = ProjectSettings::get_global(cx)
1642 .diagnostics
1643 .inline
1644 .min_column as f32
1645 * em_width;
1646
1647 let mut elements = HashMap::default();
1648 for (row, mut diagnostics) in diagnostics_by_rows {
1649 diagnostics.sort_by_key(|diagnostic| {
1650 (
1651 diagnostic.severity,
1652 std::cmp::Reverse(diagnostic.is_primary),
1653 diagnostic.start.row,
1654 diagnostic.start.column,
1655 )
1656 });
1657
1658 let Some(diagnostic_to_render) = diagnostics
1659 .iter()
1660 .find(|diagnostic| diagnostic.is_primary)
1661 .or_else(|| diagnostics.first())
1662 else {
1663 continue;
1664 };
1665
1666 let pos_y = content_origin.y
1667 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1668
1669 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1670 let pos_x = {
1671 let crease_trailer_layout = &crease_trailers[window_ix];
1672 let line_layout = &line_layouts[window_ix];
1673
1674 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1675 crease_trailer.bounds.right()
1676 } else {
1677 content_origin.x - scroll_pixel_position.x + line_layout.width
1678 };
1679
1680 let padded_line = line_end + padding;
1681 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1682
1683 cmp::max(padded_line, min_start)
1684 };
1685
1686 let behind_inline_completion_popover = inline_completion_popover_origin
1687 .as_ref()
1688 .map_or(false, |inline_completion_popover_origin| {
1689 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1690 });
1691 let opacity = if behind_inline_completion_popover {
1692 0.5
1693 } else {
1694 1.0
1695 };
1696
1697 let mut element = h_flex()
1698 .id(("diagnostic", row.0))
1699 .h(line_height)
1700 .w_full()
1701 .px_1()
1702 .rounded_xs()
1703 .opacity(opacity)
1704 .bg(severity_to_color(&diagnostic_to_render.severity)
1705 .color(cx)
1706 .opacity(0.05))
1707 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1708 .text_sm()
1709 .font_family(style.text.font().family)
1710 .child(diagnostic_to_render.message.clone())
1711 .into_any();
1712
1713 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1714
1715 elements.insert(row, element);
1716 }
1717
1718 elements
1719 }
1720
1721 fn layout_inline_blame(
1722 &self,
1723 display_row: DisplayRow,
1724 row_info: &RowInfo,
1725 line_layout: &LineWithInvisibles,
1726 crease_trailer: Option<&CreaseTrailerLayout>,
1727 em_width: Pixels,
1728 content_origin: gpui::Point<Pixels>,
1729 scroll_pixel_position: gpui::Point<Pixels>,
1730 line_height: Pixels,
1731 window: &mut Window,
1732 cx: &mut App,
1733 ) -> Option<AnyElement> {
1734 if !self
1735 .editor
1736 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1737 {
1738 return None;
1739 }
1740
1741 let editor = self.editor.read(cx);
1742 let blame = editor.blame.clone()?;
1743 let padding = {
1744 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1745 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1746
1747 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1748
1749 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1750 match &inline_completion.completion {
1751 InlineCompletion::Edit {
1752 display_mode: EditDisplayMode::TabAccept,
1753 ..
1754 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1755 _ => {}
1756 }
1757 }
1758
1759 padding * em_width
1760 };
1761
1762 let blame_entry = blame
1763 .update(cx, |blame, cx| {
1764 blame.blame_for_rows(&[*row_info], cx).next()
1765 })
1766 .flatten()?;
1767
1768 let mut element =
1769 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1770
1771 let start_y = content_origin.y
1772 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1773
1774 let start_x = {
1775 let line_end = if let Some(crease_trailer) = crease_trailer {
1776 crease_trailer.bounds.right()
1777 } else {
1778 content_origin.x - scroll_pixel_position.x + line_layout.width
1779 };
1780
1781 let padded_line_end = line_end + padding;
1782
1783 let min_column_in_pixels = ProjectSettings::get_global(cx)
1784 .git
1785 .inline_blame
1786 .and_then(|settings| settings.min_column)
1787 .map(|col| self.column_pixels(col as usize, window, cx))
1788 .unwrap_or(px(0.));
1789 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1790
1791 cmp::max(padded_line_end, min_start)
1792 };
1793
1794 let absolute_offset = point(start_x, start_y);
1795 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1796
1797 Some(element)
1798 }
1799
1800 fn layout_blame_entries(
1801 &self,
1802 buffer_rows: &[RowInfo],
1803 em_width: Pixels,
1804 scroll_position: gpui::Point<f32>,
1805 line_height: Pixels,
1806 gutter_hitbox: &Hitbox,
1807 max_width: Option<Pixels>,
1808 window: &mut Window,
1809 cx: &mut App,
1810 ) -> Option<Vec<AnyElement>> {
1811 if !self
1812 .editor
1813 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1814 {
1815 return None;
1816 }
1817
1818 let blame = self.editor.read(cx).blame.clone()?;
1819 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1820 blame.blame_for_rows(buffer_rows, cx).collect()
1821 });
1822
1823 let width = if let Some(max_width) = max_width {
1824 AvailableSpace::Definite(max_width)
1825 } else {
1826 AvailableSpace::MaxContent
1827 };
1828 let scroll_top = scroll_position.y * line_height;
1829 let start_x = em_width;
1830
1831 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1832
1833 let shaped_lines = blamed_rows
1834 .into_iter()
1835 .enumerate()
1836 .flat_map(|(ix, blame_entry)| {
1837 if let Some(blame_entry) = blame_entry {
1838 let mut element = render_blame_entry(
1839 ix,
1840 &blame,
1841 blame_entry,
1842 &self.style,
1843 &mut last_used_color,
1844 self.editor.clone(),
1845 cx,
1846 );
1847
1848 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1849 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1850
1851 element.prepaint_as_root(
1852 absolute_offset,
1853 size(width, AvailableSpace::MinContent),
1854 window,
1855 cx,
1856 );
1857
1858 Some(element)
1859 } else {
1860 None
1861 }
1862 })
1863 .collect();
1864
1865 Some(shaped_lines)
1866 }
1867
1868 fn layout_indent_guides(
1869 &self,
1870 content_origin: gpui::Point<Pixels>,
1871 text_origin: gpui::Point<Pixels>,
1872 visible_buffer_range: Range<MultiBufferRow>,
1873 scroll_pixel_position: gpui::Point<Pixels>,
1874 line_height: Pixels,
1875 snapshot: &DisplaySnapshot,
1876 window: &mut Window,
1877 cx: &mut App,
1878 ) -> Option<Vec<IndentGuideLayout>> {
1879 let indent_guides = self.editor.update(cx, |editor, cx| {
1880 editor.indent_guides(visible_buffer_range, snapshot, cx)
1881 })?;
1882
1883 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1884 editor
1885 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1886 .unwrap_or_default()
1887 });
1888
1889 Some(
1890 indent_guides
1891 .into_iter()
1892 .enumerate()
1893 .filter_map(|(i, indent_guide)| {
1894 let single_indent_width =
1895 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1896 let total_width = single_indent_width * indent_guide.depth as f32;
1897 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1898 if start_x >= text_origin.x {
1899 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1900 indent_guide.start_row..indent_guide.end_row,
1901 line_height,
1902 snapshot,
1903 );
1904
1905 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1906
1907 Some(IndentGuideLayout {
1908 origin: point(start_x, start_y),
1909 length,
1910 single_indent_width,
1911 depth: indent_guide.depth,
1912 active: active_indent_guide_indices.contains(&i),
1913 settings: indent_guide.settings,
1914 })
1915 } else {
1916 None
1917 }
1918 })
1919 .collect(),
1920 )
1921 }
1922
1923 fn calculate_indent_guide_bounds(
1924 row_range: Range<MultiBufferRow>,
1925 line_height: Pixels,
1926 snapshot: &DisplaySnapshot,
1927 ) -> (gpui::Pixels, gpui::Pixels) {
1928 let start_point = Point::new(row_range.start.0, 0);
1929 let end_point = Point::new(row_range.end.0, 0);
1930
1931 let row_range = start_point.to_display_point(snapshot).row()
1932 ..end_point.to_display_point(snapshot).row();
1933
1934 let mut prev_line = start_point;
1935 prev_line.row = prev_line.row.saturating_sub(1);
1936 let prev_line = prev_line.to_display_point(snapshot).row();
1937
1938 let mut cons_line = end_point;
1939 cons_line.row += 1;
1940 let cons_line = cons_line.to_display_point(snapshot).row();
1941
1942 let mut offset_y = row_range.start.0 as f32 * line_height;
1943 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1944
1945 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1946 if row_range.end == cons_line {
1947 length += line_height;
1948 }
1949
1950 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1951 // we want to extend the indent guide to the start of the block.
1952 let mut block_height = 0;
1953 let mut block_offset = 0;
1954 let mut found_excerpt_header = false;
1955 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1956 if matches!(block, Block::ExcerptBoundary { .. }) {
1957 found_excerpt_header = true;
1958 break;
1959 }
1960 block_offset += block.height();
1961 block_height += block.height();
1962 }
1963 if !found_excerpt_header {
1964 offset_y -= block_offset as f32 * line_height;
1965 length += block_height as f32 * line_height;
1966 }
1967
1968 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1969 // we want to ensure that the indent guide stops before the excerpt header.
1970 let mut block_height = 0;
1971 let mut found_excerpt_header = false;
1972 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1973 if matches!(block, Block::ExcerptBoundary { .. }) {
1974 found_excerpt_header = true;
1975 }
1976 block_height += block.height();
1977 }
1978 if found_excerpt_header {
1979 length -= block_height as f32 * line_height;
1980 }
1981
1982 (offset_y, length)
1983 }
1984
1985 fn layout_breakpoints(
1986 &self,
1987 line_height: Pixels,
1988 range: Range<DisplayRow>,
1989 scroll_pixel_position: gpui::Point<Pixels>,
1990 gutter_dimensions: &GutterDimensions,
1991 gutter_hitbox: &Hitbox,
1992 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
1993 snapshot: &EditorSnapshot,
1994 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint)>,
1995 row_infos: &[RowInfo],
1996 window: &mut Window,
1997 cx: &mut App,
1998 ) -> Vec<AnyElement> {
1999 self.editor.update(cx, |editor, cx| {
2000 breakpoints
2001 .into_iter()
2002 .filter_map(|(display_row, (text_anchor, bp))| {
2003 if row_infos
2004 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2005 .is_some_and(|row_info| {
2006 row_info.expand_info.is_some()
2007 || row_info
2008 .diff_status
2009 .is_some_and(|status| status.is_deleted())
2010 })
2011 {
2012 return None;
2013 }
2014
2015 if range.start > display_row || range.end < display_row {
2016 return None;
2017 }
2018
2019 let row =
2020 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2021 if snapshot.is_line_folded(row) {
2022 return None;
2023 }
2024
2025 let button = editor.render_breakpoint(text_anchor, display_row, &bp, cx);
2026
2027 let button = prepaint_gutter_button(
2028 button,
2029 display_row,
2030 line_height,
2031 gutter_dimensions,
2032 scroll_pixel_position,
2033 gutter_hitbox,
2034 display_hunks,
2035 window,
2036 cx,
2037 );
2038 Some(button)
2039 })
2040 .collect_vec()
2041 })
2042 }
2043
2044 #[allow(clippy::too_many_arguments)]
2045 fn layout_run_indicators(
2046 &self,
2047 line_height: Pixels,
2048 range: Range<DisplayRow>,
2049 row_infos: &[RowInfo],
2050 scroll_pixel_position: gpui::Point<Pixels>,
2051 gutter_dimensions: &GutterDimensions,
2052 gutter_hitbox: &Hitbox,
2053 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2054 snapshot: &EditorSnapshot,
2055 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2056 window: &mut Window,
2057 cx: &mut App,
2058 ) -> Vec<AnyElement> {
2059 self.editor.update(cx, |editor, cx| {
2060 let active_task_indicator_row =
2061 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2062 deployed_from_indicator,
2063 actions,
2064 ..
2065 })) = editor.context_menu.borrow().as_ref()
2066 {
2067 actions
2068 .tasks
2069 .as_ref()
2070 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2071 .or(*deployed_from_indicator)
2072 } else {
2073 None
2074 };
2075
2076 let offset_range_start =
2077 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2078
2079 let offset_range_end =
2080 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2081
2082 editor
2083 .tasks
2084 .iter()
2085 .filter_map(|(_, tasks)| {
2086 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2087 if multibuffer_point < offset_range_start
2088 || multibuffer_point > offset_range_end
2089 {
2090 return None;
2091 }
2092 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2093 let buffer_folded = snapshot
2094 .buffer_snapshot
2095 .buffer_line_for_row(multibuffer_row)
2096 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2097 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2098 .unwrap_or(false);
2099 if buffer_folded {
2100 return None;
2101 }
2102
2103 if snapshot.is_line_folded(multibuffer_row) {
2104 // Skip folded indicators, unless it's the starting line of a fold.
2105 if multibuffer_row
2106 .0
2107 .checked_sub(1)
2108 .map_or(false, |previous_row| {
2109 snapshot.is_line_folded(MultiBufferRow(previous_row))
2110 })
2111 {
2112 return None;
2113 }
2114 }
2115
2116 let display_row = multibuffer_point.to_display_point(snapshot).row();
2117 if row_infos
2118 .get((display_row - range.start).0 as usize)
2119 .is_some_and(|row_info| row_info.expand_info.is_some())
2120 {
2121 return None;
2122 }
2123
2124 let button = editor.render_run_indicator(
2125 &self.style,
2126 Some(display_row) == active_task_indicator_row,
2127 display_row,
2128 breakpoints.remove(&display_row),
2129 cx,
2130 );
2131
2132 let button = prepaint_gutter_button(
2133 button,
2134 display_row,
2135 line_height,
2136 gutter_dimensions,
2137 scroll_pixel_position,
2138 gutter_hitbox,
2139 display_hunks,
2140 window,
2141 cx,
2142 );
2143 Some(button)
2144 })
2145 .collect_vec()
2146 })
2147 }
2148
2149 fn layout_expand_toggles(
2150 &self,
2151 gutter_hitbox: &Hitbox,
2152 gutter_dimensions: GutterDimensions,
2153 em_width: Pixels,
2154 line_height: Pixels,
2155 scroll_position: gpui::Point<f32>,
2156 buffer_rows: &[RowInfo],
2157 window: &mut Window,
2158 cx: &mut App,
2159 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2160 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2161
2162 let scroll_top = scroll_position.y * line_height;
2163
2164 let max_line_number_length = self
2165 .editor
2166 .read(cx)
2167 .buffer()
2168 .read(cx)
2169 .snapshot(cx)
2170 .widest_line_number()
2171 .ilog10()
2172 + 1;
2173
2174 let elements = buffer_rows
2175 .into_iter()
2176 .enumerate()
2177 .map(|(ix, row_info)| {
2178 let ExpandInfo {
2179 excerpt_id,
2180 direction,
2181 } = row_info.expand_info?;
2182
2183 let icon_name = match direction {
2184 ExpandExcerptDirection::Up => IconName::ExpandUp,
2185 ExpandExcerptDirection::Down => IconName::ExpandDown,
2186 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2187 };
2188
2189 let git_gutter_width = Self::gutter_strip_width(line_height);
2190 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2191
2192 let editor = self.editor.clone();
2193 let is_wide = max_line_number_length >= MIN_LINE_NUMBER_DIGITS
2194 && row_info
2195 .buffer_row
2196 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2197 || gutter_dimensions.right_padding == px(0.);
2198
2199 let width = if is_wide {
2200 available_width - px(2.)
2201 } else {
2202 available_width + em_width - px(2.)
2203 };
2204
2205 let toggle = IconButton::new(("expand", ix), icon_name)
2206 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2207 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2208 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2209 .width(width.into())
2210 .on_click(move |_, window, cx| {
2211 editor.update(cx, |editor, cx| {
2212 editor.expand_excerpt(excerpt_id, direction, window, cx);
2213 });
2214 })
2215 .tooltip(Tooltip::for_action_title(
2216 "Expand Excerpt",
2217 &crate::actions::ExpandExcerpts::default(),
2218 ))
2219 .into_any_element();
2220
2221 let position = point(
2222 git_gutter_width + px(1.),
2223 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2224 );
2225 let origin = gutter_hitbox.origin + position;
2226
2227 Some((toggle, origin))
2228 })
2229 .collect();
2230
2231 elements
2232 }
2233
2234 fn layout_code_actions_indicator(
2235 &self,
2236 line_height: Pixels,
2237 newest_selection_head: DisplayPoint,
2238 scroll_pixel_position: gpui::Point<Pixels>,
2239 gutter_dimensions: &GutterDimensions,
2240 gutter_hitbox: &Hitbox,
2241 breakpoint_points: &mut HashMap<DisplayRow, (Anchor, Breakpoint)>,
2242 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2243 window: &mut Window,
2244 cx: &mut App,
2245 ) -> Option<AnyElement> {
2246 let mut active = false;
2247 let mut button = None;
2248 let row = newest_selection_head.row();
2249 self.editor.update(cx, |editor, cx| {
2250 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2251 deployed_from_indicator,
2252 ..
2253 })) = editor.context_menu.borrow().as_ref()
2254 {
2255 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2256 };
2257
2258 let breakpoint = breakpoint_points.get(&row);
2259 button = editor.render_code_actions_indicator(&self.style, row, active, breakpoint, cx);
2260 });
2261
2262 let button = button?;
2263 breakpoint_points.remove(&row);
2264
2265 let button = prepaint_gutter_button(
2266 button,
2267 row,
2268 line_height,
2269 gutter_dimensions,
2270 scroll_pixel_position,
2271 gutter_hitbox,
2272 display_hunks,
2273 window,
2274 cx,
2275 );
2276
2277 Some(button)
2278 }
2279
2280 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2281 if let Some(index) = participant_index {
2282 cx.theme().players().color_for_participant(index.0)
2283 } else {
2284 cx.theme().players().absent()
2285 }
2286 }
2287
2288 fn calculate_relative_line_numbers(
2289 &self,
2290 snapshot: &EditorSnapshot,
2291 rows: &Range<DisplayRow>,
2292 relative_to: Option<DisplayRow>,
2293 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2294 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2295 let Some(relative_to) = relative_to else {
2296 return relative_rows;
2297 };
2298
2299 let start = rows.start.min(relative_to);
2300 let end = rows.end.max(relative_to);
2301
2302 let buffer_rows = snapshot
2303 .row_infos(start)
2304 .take(1 + end.minus(start) as usize)
2305 .collect::<Vec<_>>();
2306
2307 let head_idx = relative_to.minus(start);
2308 let mut delta = 1;
2309 let mut i = head_idx + 1;
2310 while i < buffer_rows.len() as u32 {
2311 if buffer_rows[i as usize].buffer_row.is_some() {
2312 if rows.contains(&DisplayRow(i + start.0)) {
2313 relative_rows.insert(DisplayRow(i + start.0), delta);
2314 }
2315 delta += 1;
2316 }
2317 i += 1;
2318 }
2319 delta = 1;
2320 i = head_idx.min(buffer_rows.len() as u32 - 1);
2321 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2322 i -= 1;
2323 }
2324
2325 while i > 0 {
2326 i -= 1;
2327 if buffer_rows[i as usize].buffer_row.is_some() {
2328 if rows.contains(&DisplayRow(i + start.0)) {
2329 relative_rows.insert(DisplayRow(i + start.0), delta);
2330 }
2331 delta += 1;
2332 }
2333 }
2334
2335 relative_rows
2336 }
2337
2338 fn layout_line_numbers(
2339 &self,
2340 gutter_hitbox: Option<&Hitbox>,
2341 gutter_dimensions: GutterDimensions,
2342 line_height: Pixels,
2343 scroll_position: gpui::Point<f32>,
2344 rows: Range<DisplayRow>,
2345 buffer_rows: &[RowInfo],
2346 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2347 newest_selection_head: Option<DisplayPoint>,
2348 snapshot: &EditorSnapshot,
2349 window: &mut Window,
2350 cx: &mut App,
2351 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2352 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2353 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2354 });
2355 if !include_line_numbers {
2356 return Arc::default();
2357 }
2358
2359 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2360 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2361 let newest = editor.selections.newest::<Point>(cx);
2362 SelectionLayout::new(
2363 newest,
2364 editor.selections.line_mode,
2365 editor.cursor_shape,
2366 &snapshot.display_snapshot,
2367 true,
2368 true,
2369 None,
2370 )
2371 .head
2372 });
2373 let is_relative = editor.should_use_relative_line_numbers(cx);
2374 (newest_selection_head, is_relative)
2375 });
2376
2377 let relative_to = if is_relative {
2378 Some(newest_selection_head.row())
2379 } else {
2380 None
2381 };
2382 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2383 let mut line_number = String::new();
2384 let line_numbers = buffer_rows
2385 .into_iter()
2386 .enumerate()
2387 .flat_map(|(ix, row_info)| {
2388 let display_row = DisplayRow(rows.start.0 + ix as u32);
2389 line_number.clear();
2390 let non_relative_number = row_info.buffer_row? + 1;
2391 let number = relative_rows
2392 .get(&display_row)
2393 .unwrap_or(&non_relative_number);
2394 write!(&mut line_number, "{number}").unwrap();
2395 if row_info
2396 .diff_status
2397 .is_some_and(|status| status.is_deleted())
2398 {
2399 return None;
2400 }
2401
2402 let color = active_rows
2403 .get(&display_row)
2404 .and_then(|spec| {
2405 if spec.breakpoint {
2406 Some(cx.theme().colors().debugger_accent)
2407 } else if spec.selection {
2408 Some(cx.theme().colors().editor_active_line_number)
2409 } else {
2410 None
2411 }
2412 })
2413 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
2414 let shaped_line = self
2415 .shape_line_number(SharedString::from(&line_number), color, window)
2416 .log_err()?;
2417 let scroll_top = scroll_position.y * line_height;
2418 let line_origin = gutter_hitbox.map(|hitbox| {
2419 hitbox.origin
2420 + point(
2421 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2422 ix as f32 * line_height - (scroll_top % line_height),
2423 )
2424 });
2425
2426 #[cfg(not(test))]
2427 let hitbox = line_origin.map(|line_origin| {
2428 window.insert_hitbox(
2429 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2430 false,
2431 )
2432 });
2433 #[cfg(test)]
2434 let hitbox = {
2435 let _ = line_origin;
2436 None
2437 };
2438
2439 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2440 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2441 let line_number = LineNumberLayout {
2442 shaped_line,
2443 hitbox,
2444 };
2445 Some((multi_buffer_row, line_number))
2446 })
2447 .collect();
2448 Arc::new(line_numbers)
2449 }
2450
2451 fn layout_crease_toggles(
2452 &self,
2453 rows: Range<DisplayRow>,
2454 row_infos: &[RowInfo],
2455 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
2456 snapshot: &EditorSnapshot,
2457 window: &mut Window,
2458 cx: &mut App,
2459 ) -> Vec<Option<AnyElement>> {
2460 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2461 && snapshot.mode == EditorMode::Full
2462 && self.editor.read(cx).is_singleton(cx);
2463 if include_fold_statuses {
2464 row_infos
2465 .into_iter()
2466 .enumerate()
2467 .map(|(ix, info)| {
2468 if info.expand_info.is_some() {
2469 return None;
2470 }
2471 let row = info.multibuffer_row?;
2472 let display_row = DisplayRow(rows.start.0 + ix as u32);
2473 let active = active_rows.contains_key(&display_row);
2474
2475 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2476 })
2477 .collect()
2478 } else {
2479 Vec::new()
2480 }
2481 }
2482
2483 fn layout_crease_trailers(
2484 &self,
2485 buffer_rows: impl IntoIterator<Item = RowInfo>,
2486 snapshot: &EditorSnapshot,
2487 window: &mut Window,
2488 cx: &mut App,
2489 ) -> Vec<Option<AnyElement>> {
2490 buffer_rows
2491 .into_iter()
2492 .map(|row_info| {
2493 if row_info.expand_info.is_some() {
2494 return None;
2495 }
2496 if let Some(row) = row_info.multibuffer_row {
2497 snapshot.render_crease_trailer(row, window, cx)
2498 } else {
2499 None
2500 }
2501 })
2502 .collect()
2503 }
2504
2505 fn layout_lines(
2506 rows: Range<DisplayRow>,
2507 snapshot: &EditorSnapshot,
2508 style: &EditorStyle,
2509 editor_width: Pixels,
2510 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2511 window: &mut Window,
2512 cx: &mut App,
2513 ) -> Vec<LineWithInvisibles> {
2514 if rows.start >= rows.end {
2515 return Vec::new();
2516 }
2517
2518 // Show the placeholder when the editor is empty
2519 if snapshot.is_empty() {
2520 let font_size = style.text.font_size.to_pixels(window.rem_size());
2521 let placeholder_color = cx.theme().colors().text_placeholder;
2522 let placeholder_text = snapshot.placeholder_text();
2523
2524 let placeholder_lines = placeholder_text
2525 .as_ref()
2526 .map_or("", AsRef::as_ref)
2527 .split('\n')
2528 .skip(rows.start.0 as usize)
2529 .chain(iter::repeat(""))
2530 .take(rows.len());
2531 placeholder_lines
2532 .filter_map(move |line| {
2533 let run = TextRun {
2534 len: line.len(),
2535 font: style.text.font(),
2536 color: placeholder_color,
2537 background_color: None,
2538 underline: Default::default(),
2539 strikethrough: None,
2540 };
2541 window
2542 .text_system()
2543 .shape_line(line.to_string().into(), font_size, &[run])
2544 .log_err()
2545 })
2546 .map(|line| LineWithInvisibles {
2547 width: line.width,
2548 len: line.len,
2549 fragments: smallvec![LineFragment::Text(line)],
2550 invisibles: Vec::new(),
2551 font_size,
2552 })
2553 .collect()
2554 } else {
2555 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2556 LineWithInvisibles::from_chunks(
2557 chunks,
2558 &style,
2559 MAX_LINE_LEN,
2560 rows.len(),
2561 snapshot.mode,
2562 editor_width,
2563 is_row_soft_wrapped,
2564 window,
2565 cx,
2566 )
2567 }
2568 }
2569
2570 fn prepaint_lines(
2571 &self,
2572 start_row: DisplayRow,
2573 line_layouts: &mut [LineWithInvisibles],
2574 line_height: Pixels,
2575 scroll_pixel_position: gpui::Point<Pixels>,
2576 content_origin: gpui::Point<Pixels>,
2577 window: &mut Window,
2578 cx: &mut App,
2579 ) -> SmallVec<[AnyElement; 1]> {
2580 let mut line_elements = SmallVec::new();
2581 for (ix, line) in line_layouts.iter_mut().enumerate() {
2582 let row = start_row + DisplayRow(ix as u32);
2583 line.prepaint(
2584 line_height,
2585 scroll_pixel_position,
2586 row,
2587 content_origin,
2588 &mut line_elements,
2589 window,
2590 cx,
2591 );
2592 }
2593 line_elements
2594 }
2595
2596 fn render_block(
2597 &self,
2598 block: &Block,
2599 available_width: AvailableSpace,
2600 block_id: BlockId,
2601 block_row_start: DisplayRow,
2602 snapshot: &EditorSnapshot,
2603 text_x: Pixels,
2604 rows: &Range<DisplayRow>,
2605 line_layouts: &[LineWithInvisibles],
2606 gutter_dimensions: &GutterDimensions,
2607 line_height: Pixels,
2608 em_width: Pixels,
2609 text_hitbox: &Hitbox,
2610 editor_width: Pixels,
2611 scroll_width: &mut Pixels,
2612 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2613 selections: &[Selection<Point>],
2614 selected_buffer_ids: &Vec<BufferId>,
2615 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2616 sticky_header_excerpt_id: Option<ExcerptId>,
2617 window: &mut Window,
2618 cx: &mut App,
2619 ) -> (AnyElement, Size<Pixels>) {
2620 let mut element = match block {
2621 Block::Custom(block) => {
2622 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2623 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2624 let align_to = block_start.to_display_point(snapshot);
2625 let anchor_x = text_x
2626 + if rows.contains(&align_to.row()) {
2627 line_layouts[align_to.row().minus(rows.start) as usize]
2628 .x_for_index(align_to.column() as usize)
2629 } else {
2630 layout_line(
2631 align_to.row(),
2632 snapshot,
2633 &self.style,
2634 editor_width,
2635 is_row_soft_wrapped,
2636 window,
2637 cx,
2638 )
2639 .x_for_index(align_to.column() as usize)
2640 };
2641
2642 let selected = selections
2643 .binary_search_by(|selection| {
2644 if selection.end <= block_start {
2645 Ordering::Less
2646 } else if selection.start >= block_end {
2647 Ordering::Greater
2648 } else {
2649 Ordering::Equal
2650 }
2651 })
2652 .is_ok();
2653
2654 div()
2655 .size_full()
2656 .child(block.render(&mut BlockContext {
2657 window,
2658 app: cx,
2659 anchor_x,
2660 gutter_dimensions,
2661 line_height,
2662 em_width,
2663 block_id,
2664 selected,
2665 max_width: text_hitbox.size.width.max(*scroll_width),
2666 editor_style: &self.style,
2667 }))
2668 .into_any()
2669 }
2670
2671 Block::FoldedBuffer {
2672 first_excerpt,
2673 height,
2674 ..
2675 } => {
2676 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2677 let result = v_flex().id(block_id).w_full();
2678
2679 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2680 result
2681 .child(self.render_buffer_header(
2682 first_excerpt,
2683 true,
2684 selected,
2685 false,
2686 jump_data,
2687 window,
2688 cx,
2689 ))
2690 .into_any_element()
2691 }
2692
2693 Block::ExcerptBoundary {
2694 excerpt,
2695 height,
2696 starts_new_buffer,
2697 ..
2698 } => {
2699 let color = cx.theme().colors().clone();
2700 let mut result = v_flex().id(block_id).w_full();
2701
2702 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
2703
2704 if *starts_new_buffer {
2705 if sticky_header_excerpt_id != Some(excerpt.id) {
2706 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
2707
2708 result = result.child(self.render_buffer_header(
2709 excerpt, false, selected, false, jump_data, window, cx,
2710 ));
2711 } else {
2712 result =
2713 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2714 }
2715 } else {
2716 result = result.child(
2717 h_flex().relative().child(
2718 div()
2719 .top(line_height / 2.)
2720 .absolute()
2721 .w_full()
2722 .h_px()
2723 .bg(color.border_variant),
2724 ),
2725 );
2726 };
2727
2728 result.into_any()
2729 }
2730 };
2731
2732 // Discover the element's content height, then round up to the nearest multiple of line height.
2733 let preliminary_size = element.layout_as_root(
2734 size(available_width, AvailableSpace::MinContent),
2735 window,
2736 cx,
2737 );
2738 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2739 let final_size = if preliminary_size.height == quantized_height {
2740 preliminary_size
2741 } else {
2742 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2743 };
2744
2745 if let BlockId::Custom(custom_block_id) = block_id {
2746 if block.height() > 0 {
2747 let element_height_in_lines =
2748 ((final_size.height / line_height).ceil() as u32).max(1);
2749 if element_height_in_lines != block.height() {
2750 resized_blocks.insert(custom_block_id, element_height_in_lines);
2751 }
2752 }
2753 }
2754
2755 (element, final_size)
2756 }
2757
2758 fn render_buffer_header(
2759 &self,
2760 for_excerpt: &ExcerptInfo,
2761 is_folded: bool,
2762 is_selected: bool,
2763 is_sticky: bool,
2764 jump_data: JumpData,
2765 window: &mut Window,
2766 cx: &mut App,
2767 ) -> Div {
2768 let editor = self.editor.read(cx);
2769 let file_status = editor
2770 .buffer
2771 .read(cx)
2772 .all_diff_hunks_expanded()
2773 .then(|| {
2774 editor
2775 .project
2776 .as_ref()?
2777 .read(cx)
2778 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2779 })
2780 .flatten();
2781
2782 let include_root = editor
2783 .project
2784 .as_ref()
2785 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2786 .unwrap_or_default();
2787 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2788 let filename = path
2789 .as_ref()
2790 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2791 let parent_path = path.as_ref().and_then(|path| {
2792 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2793 });
2794 let focus_handle = editor.focus_handle(cx);
2795 let colors = cx.theme().colors();
2796
2797 div()
2798 .p_1()
2799 .w_full()
2800 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2801 .child(
2802 h_flex()
2803 .size_full()
2804 .gap_2()
2805 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2806 .pl_0p5()
2807 .pr_5()
2808 .rounded_sm()
2809 .when(is_sticky, |el| el.shadow_md())
2810 .border_1()
2811 .map(|div| {
2812 let border_color = if is_selected
2813 && is_folded
2814 && focus_handle.contains_focused(window, cx)
2815 {
2816 colors.border_focused
2817 } else {
2818 colors.border
2819 };
2820 div.border_color(border_color)
2821 })
2822 .bg(colors.editor_subheader_background)
2823 .hover(|style| style.bg(colors.element_hover))
2824 .map(|header| {
2825 let editor = self.editor.clone();
2826 let buffer_id = for_excerpt.buffer_id;
2827 let toggle_chevron_icon =
2828 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2829 header.child(
2830 div()
2831 .hover(|style| style.bg(colors.element_selected))
2832 .rounded_xs()
2833 .child(
2834 ButtonLike::new("toggle-buffer-fold")
2835 .style(ui::ButtonStyle::Transparent)
2836 .height(px(28.).into())
2837 .width(px(28.).into())
2838 .children(toggle_chevron_icon)
2839 .tooltip({
2840 let focus_handle = focus_handle.clone();
2841 move |window, cx| {
2842 Tooltip::for_action_in(
2843 "Toggle Excerpt Fold",
2844 &ToggleFold,
2845 &focus_handle,
2846 window,
2847 cx,
2848 )
2849 }
2850 })
2851 .on_click(move |_, _, cx| {
2852 if is_folded {
2853 editor.update(cx, |editor, cx| {
2854 editor.unfold_buffer(buffer_id, cx);
2855 });
2856 } else {
2857 editor.update(cx, |editor, cx| {
2858 editor.fold_buffer(buffer_id, cx);
2859 });
2860 }
2861 }),
2862 ),
2863 )
2864 })
2865 .children(
2866 editor
2867 .addons
2868 .values()
2869 .filter_map(|addon| {
2870 addon.render_buffer_header_controls(for_excerpt, window, cx)
2871 })
2872 .take(1),
2873 )
2874 .child(
2875 h_flex()
2876 .cursor_pointer()
2877 .id("path header block")
2878 .size_full()
2879 .justify_between()
2880 .child(
2881 h_flex()
2882 .gap_2()
2883 .child(
2884 Label::new(
2885 filename
2886 .map(SharedString::from)
2887 .unwrap_or_else(|| "untitled".into()),
2888 )
2889 .single_line()
2890 .when_some(
2891 file_status,
2892 |el, status| {
2893 el.color(if status.is_conflicted() {
2894 Color::Conflict
2895 } else if status.is_modified() {
2896 Color::Modified
2897 } else if status.is_deleted() {
2898 Color::Disabled
2899 } else {
2900 Color::Created
2901 })
2902 .when(status.is_deleted(), |el| el.strikethrough())
2903 },
2904 ),
2905 )
2906 .when_some(parent_path, |then, path| {
2907 then.child(div().child(path).text_color(
2908 if file_status.is_some_and(FileStatus::is_deleted) {
2909 colors.text_disabled
2910 } else {
2911 colors.text_muted
2912 },
2913 ))
2914 }),
2915 )
2916 .when(is_selected, |el| {
2917 el.child(
2918 h_flex()
2919 .id("jump-to-file-button")
2920 .gap_2p5()
2921 .child(Label::new("Jump To File"))
2922 .children(
2923 KeyBinding::for_action_in(
2924 &OpenExcerpts,
2925 &focus_handle,
2926 window,
2927 cx,
2928 )
2929 .map(|binding| binding.into_any_element()),
2930 ),
2931 )
2932 })
2933 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2934 .on_click(window.listener_for(&self.editor, {
2935 move |editor, e: &ClickEvent, window, cx| {
2936 editor.open_excerpts_common(
2937 Some(jump_data.clone()),
2938 e.down.modifiers.secondary(),
2939 window,
2940 cx,
2941 );
2942 }
2943 })),
2944 ),
2945 )
2946 }
2947
2948 fn render_blocks(
2949 &self,
2950 rows: Range<DisplayRow>,
2951 snapshot: &EditorSnapshot,
2952 hitbox: &Hitbox,
2953 text_hitbox: &Hitbox,
2954 editor_width: Pixels,
2955 scroll_width: &mut Pixels,
2956 gutter_dimensions: &GutterDimensions,
2957 em_width: Pixels,
2958 text_x: Pixels,
2959 line_height: Pixels,
2960 line_layouts: &[LineWithInvisibles],
2961 selections: &[Selection<Point>],
2962 selected_buffer_ids: &Vec<BufferId>,
2963 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2964 sticky_header_excerpt_id: Option<ExcerptId>,
2965 window: &mut Window,
2966 cx: &mut App,
2967 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2968 let (fixed_blocks, non_fixed_blocks) = snapshot
2969 .blocks_in_range(rows.clone())
2970 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2971
2972 let mut focused_block = self
2973 .editor
2974 .update(cx, |editor, _| editor.take_focused_block());
2975 let mut fixed_block_max_width = Pixels::ZERO;
2976 let mut blocks = Vec::new();
2977 let mut resized_blocks = HashMap::default();
2978
2979 for (row, block) in fixed_blocks {
2980 let block_id = block.id();
2981
2982 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2983 focused_block = None;
2984 }
2985
2986 let (element, element_size) = self.render_block(
2987 block,
2988 AvailableSpace::MinContent,
2989 block_id,
2990 row,
2991 snapshot,
2992 text_x,
2993 &rows,
2994 line_layouts,
2995 gutter_dimensions,
2996 line_height,
2997 em_width,
2998 text_hitbox,
2999 editor_width,
3000 scroll_width,
3001 &mut resized_blocks,
3002 selections,
3003 selected_buffer_ids,
3004 is_row_soft_wrapped,
3005 sticky_header_excerpt_id,
3006 window,
3007 cx,
3008 );
3009 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3010 blocks.push(BlockLayout {
3011 id: block_id,
3012 row: Some(row),
3013 element,
3014 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3015 style: BlockStyle::Fixed,
3016 is_buffer_header: block.is_buffer_header(),
3017 });
3018 }
3019
3020 for (row, block) in non_fixed_blocks {
3021 let style = block.style();
3022 let width = match style {
3023 BlockStyle::Sticky => hitbox.size.width,
3024 BlockStyle::Flex => hitbox
3025 .size
3026 .width
3027 .max(fixed_block_max_width)
3028 .max(gutter_dimensions.width + *scroll_width),
3029 BlockStyle::Fixed => unreachable!(),
3030 };
3031 let block_id = block.id();
3032
3033 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3034 focused_block = None;
3035 }
3036
3037 let (element, element_size) = self.render_block(
3038 block,
3039 width.into(),
3040 block_id,
3041 row,
3042 snapshot,
3043 text_x,
3044 &rows,
3045 line_layouts,
3046 gutter_dimensions,
3047 line_height,
3048 em_width,
3049 text_hitbox,
3050 editor_width,
3051 scroll_width,
3052 &mut resized_blocks,
3053 selections,
3054 selected_buffer_ids,
3055 is_row_soft_wrapped,
3056 sticky_header_excerpt_id,
3057 window,
3058 cx,
3059 );
3060
3061 blocks.push(BlockLayout {
3062 id: block_id,
3063 row: Some(row),
3064 element,
3065 available_space: size(width.into(), element_size.height.into()),
3066 style,
3067 is_buffer_header: block.is_buffer_header(),
3068 });
3069 }
3070
3071 if let Some(focused_block) = focused_block {
3072 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3073 if focus_handle.is_focused(window) {
3074 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3075 let style = block.style();
3076 let width = match style {
3077 BlockStyle::Fixed => AvailableSpace::MinContent,
3078 BlockStyle::Flex => AvailableSpace::Definite(
3079 hitbox
3080 .size
3081 .width
3082 .max(fixed_block_max_width)
3083 .max(gutter_dimensions.width + *scroll_width),
3084 ),
3085 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3086 };
3087
3088 let (element, element_size) = self.render_block(
3089 &block,
3090 width,
3091 focused_block.id,
3092 rows.end,
3093 snapshot,
3094 text_x,
3095 &rows,
3096 line_layouts,
3097 gutter_dimensions,
3098 line_height,
3099 em_width,
3100 text_hitbox,
3101 editor_width,
3102 scroll_width,
3103 &mut resized_blocks,
3104 selections,
3105 selected_buffer_ids,
3106 is_row_soft_wrapped,
3107 sticky_header_excerpt_id,
3108 window,
3109 cx,
3110 );
3111
3112 blocks.push(BlockLayout {
3113 id: block.id(),
3114 row: None,
3115 element,
3116 available_space: size(width, element_size.height.into()),
3117 style,
3118 is_buffer_header: block.is_buffer_header(),
3119 });
3120 }
3121 }
3122 }
3123 }
3124
3125 if resized_blocks.is_empty() {
3126 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3127 Ok(blocks)
3128 } else {
3129 Err(resized_blocks)
3130 }
3131 }
3132
3133 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3134 /// a restart of rendering for the editor based on the new sizes.
3135 fn layout_blocks(
3136 &self,
3137 blocks: &mut Vec<BlockLayout>,
3138 block_starts: &mut HashSet<DisplayRow>,
3139 hitbox: &Hitbox,
3140 line_height: Pixels,
3141 scroll_pixel_position: gpui::Point<Pixels>,
3142 window: &mut Window,
3143 cx: &mut App,
3144 ) {
3145 for block in blocks {
3146 let mut origin = if let Some(row) = block.row {
3147 block_starts.insert(row);
3148 hitbox.origin
3149 + point(
3150 Pixels::ZERO,
3151 row.as_f32() * line_height - scroll_pixel_position.y,
3152 )
3153 } else {
3154 // Position the block outside the visible area
3155 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3156 };
3157
3158 if !matches!(block.style, BlockStyle::Sticky) {
3159 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3160 }
3161
3162 let focus_handle =
3163 block
3164 .element
3165 .prepaint_as_root(origin, block.available_space, window, cx);
3166
3167 if let Some(focus_handle) = focus_handle {
3168 self.editor.update(cx, |editor, _cx| {
3169 editor.set_focused_block(FocusedBlock {
3170 id: block.id,
3171 focus_handle: focus_handle.downgrade(),
3172 });
3173 });
3174 }
3175 }
3176 }
3177
3178 fn layout_sticky_buffer_header(
3179 &self,
3180 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3181 scroll_position: f32,
3182 line_height: Pixels,
3183 snapshot: &EditorSnapshot,
3184 hitbox: &Hitbox,
3185 selected_buffer_ids: &Vec<BufferId>,
3186 blocks: &[BlockLayout],
3187 window: &mut Window,
3188 cx: &mut App,
3189 ) -> AnyElement {
3190 let jump_data = header_jump_data(
3191 snapshot,
3192 DisplayRow(scroll_position as u32),
3193 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3194 excerpt,
3195 );
3196
3197 let editor_bg_color = cx.theme().colors().editor_background;
3198
3199 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3200
3201 let mut header = v_flex()
3202 .relative()
3203 .child(
3204 div()
3205 .w(hitbox.bounds.size.width)
3206 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3207 .bg(linear_gradient(
3208 0.,
3209 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3210 linear_color_stop(editor_bg_color, 0.6),
3211 ))
3212 .absolute()
3213 .top_0(),
3214 )
3215 .child(
3216 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3217 .into_any_element(),
3218 )
3219 .into_any_element();
3220
3221 let mut origin = hitbox.origin;
3222 // Move floating header up to avoid colliding with the next buffer header.
3223 for block in blocks.iter() {
3224 if !block.is_buffer_header {
3225 continue;
3226 }
3227
3228 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3229 continue;
3230 };
3231
3232 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3233 let offset = scroll_position - max_row as f32;
3234
3235 if offset > 0.0 {
3236 origin.y -= offset * line_height;
3237 }
3238 break;
3239 }
3240
3241 let size = size(
3242 AvailableSpace::Definite(hitbox.size.width),
3243 AvailableSpace::MinContent,
3244 );
3245
3246 header.prepaint_as_root(origin, size, window, cx);
3247
3248 header
3249 }
3250
3251 fn layout_cursor_popovers(
3252 &self,
3253 line_height: Pixels,
3254 text_hitbox: &Hitbox,
3255 content_origin: gpui::Point<Pixels>,
3256 start_row: DisplayRow,
3257 scroll_pixel_position: gpui::Point<Pixels>,
3258 line_layouts: &[LineWithInvisibles],
3259 cursor: DisplayPoint,
3260 cursor_point: Point,
3261 style: &EditorStyle,
3262 window: &mut Window,
3263 cx: &mut App,
3264 ) {
3265 let mut min_menu_height = Pixels::ZERO;
3266 let mut max_menu_height = Pixels::ZERO;
3267 let mut height_above_menu = Pixels::ZERO;
3268 let height_below_menu = Pixels::ZERO;
3269 let mut edit_prediction_popover_visible = false;
3270 let mut context_menu_visible = false;
3271 let context_menu_placement;
3272
3273 {
3274 let editor = self.editor.read(cx);
3275 if editor
3276 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3277 {
3278 height_above_menu +=
3279 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3280 edit_prediction_popover_visible = true;
3281 }
3282
3283 if editor.context_menu_visible() {
3284 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3285 let (min_height_in_lines, max_height_in_lines) = editor
3286 .context_menu_options
3287 .as_ref()
3288 .map_or((3, 12), |options| {
3289 (options.min_entries_visible, options.max_entries_visible)
3290 });
3291
3292 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3293 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3294 context_menu_visible = true;
3295 }
3296 }
3297 context_menu_placement = editor
3298 .context_menu_options
3299 .as_ref()
3300 .and_then(|options| options.placement.clone());
3301 }
3302
3303 let visible = edit_prediction_popover_visible || context_menu_visible;
3304 if !visible {
3305 return;
3306 }
3307
3308 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3309 let target_position = content_origin
3310 + gpui::Point {
3311 x: cmp::max(
3312 px(0.),
3313 cursor_row_layout.x_for_index(cursor.column() as usize)
3314 - scroll_pixel_position.x,
3315 ),
3316 y: cmp::max(
3317 px(0.),
3318 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3319 ),
3320 };
3321
3322 let viewport_bounds =
3323 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3324 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3325 ..Default::default()
3326 });
3327
3328 let min_height = height_above_menu + min_menu_height + height_below_menu;
3329 let max_height = height_above_menu + max_menu_height + height_below_menu;
3330 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3331 target_position,
3332 line_height,
3333 min_height,
3334 max_height,
3335 context_menu_placement,
3336 text_hitbox,
3337 viewport_bounds,
3338 window,
3339 cx,
3340 |height, max_width_for_stable_x, y_flipped, window, cx| {
3341 // First layout the menu to get its size - others can be at least this wide.
3342 let context_menu = if context_menu_visible {
3343 let menu_height = if y_flipped {
3344 height - height_below_menu
3345 } else {
3346 height - height_above_menu
3347 };
3348 let mut element = self
3349 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3350 .expect("Visible context menu should always render.");
3351 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3352 Some((CursorPopoverType::CodeContextMenu, element, size))
3353 } else {
3354 None
3355 };
3356 let min_width = context_menu
3357 .as_ref()
3358 .map_or(px(0.), |(_, _, size)| size.width);
3359 let max_width = max_width_for_stable_x.max(
3360 context_menu
3361 .as_ref()
3362 .map_or(px(0.), |(_, _, size)| size.width),
3363 );
3364
3365 let edit_prediction = if edit_prediction_popover_visible {
3366 self.editor.update(cx, move |editor, cx| {
3367 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3368 let mut element = editor.render_edit_prediction_cursor_popover(
3369 min_width,
3370 max_width,
3371 cursor_point,
3372 style,
3373 accept_binding.keystroke(),
3374 window,
3375 cx,
3376 )?;
3377 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3378 Some((CursorPopoverType::EditPrediction, element, size))
3379 })
3380 } else {
3381 None
3382 };
3383 vec![edit_prediction, context_menu]
3384 .into_iter()
3385 .flatten()
3386 .collect::<Vec<_>>()
3387 },
3388 ) else {
3389 return;
3390 };
3391
3392 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3393 .iter()
3394 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3395 else {
3396 return;
3397 };
3398 let last_ix = laid_out_popovers.len() - 1;
3399 let menu_is_last = menu_ix == last_ix;
3400 let first_popover_bounds = laid_out_popovers[0].1;
3401 let last_popover_bounds = laid_out_popovers[last_ix].1;
3402
3403 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3404 // right, and otherwise it goes below or to the right.
3405 let mut target_bounds = Bounds::from_corners(
3406 first_popover_bounds.origin,
3407 last_popover_bounds.bottom_right(),
3408 );
3409 target_bounds.size.width = menu_bounds.size.width;
3410
3411 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3412 // based on this is preferred for layout stability.
3413 let mut max_target_bounds = target_bounds;
3414 max_target_bounds.size.height = max_height;
3415 if y_flipped {
3416 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3417 }
3418
3419 // Add spacing around `target_bounds` and `max_target_bounds`.
3420 let mut extend_amount = Edges::all(MENU_GAP);
3421 if y_flipped {
3422 extend_amount.bottom = line_height;
3423 } else {
3424 extend_amount.top = line_height;
3425 }
3426 let target_bounds = target_bounds.extend(extend_amount);
3427 let max_target_bounds = max_target_bounds.extend(extend_amount);
3428
3429 let must_place_above_or_below =
3430 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3431 laid_out_popovers[menu_ix + 1..]
3432 .iter()
3433 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3434 } else {
3435 false
3436 };
3437
3438 self.layout_context_menu_aside(
3439 y_flipped,
3440 *menu_bounds,
3441 target_bounds,
3442 max_target_bounds,
3443 max_menu_height,
3444 must_place_above_or_below,
3445 text_hitbox,
3446 viewport_bounds,
3447 window,
3448 cx,
3449 );
3450 }
3451
3452 fn layout_gutter_menu(
3453 &self,
3454 line_height: Pixels,
3455 text_hitbox: &Hitbox,
3456 content_origin: gpui::Point<Pixels>,
3457 scroll_pixel_position: gpui::Point<Pixels>,
3458 gutter_overshoot: Pixels,
3459 window: &mut Window,
3460 cx: &mut App,
3461 ) {
3462 let editor = self.editor.read(cx);
3463 if !editor.context_menu_visible() {
3464 return;
3465 }
3466 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3467 editor.context_menu_origin()
3468 else {
3469 return;
3470 };
3471 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3472 // indicator than just a plain first column of the text field.
3473 let target_position = content_origin
3474 + gpui::Point {
3475 x: -gutter_overshoot,
3476 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3477 };
3478
3479 let (min_height_in_lines, max_height_in_lines) = editor
3480 .context_menu_options
3481 .as_ref()
3482 .map_or((3, 12), |options| {
3483 (options.min_entries_visible, options.max_entries_visible)
3484 });
3485
3486 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
3487 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
3488 let viewport_bounds =
3489 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3490 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3491 ..Default::default()
3492 });
3493 self.layout_popovers_above_or_below_line(
3494 target_position,
3495 line_height,
3496 min_height,
3497 max_height,
3498 editor
3499 .context_menu_options
3500 .as_ref()
3501 .and_then(|options| options.placement.clone()),
3502 text_hitbox,
3503 viewport_bounds,
3504 window,
3505 cx,
3506 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3507 let mut element = self
3508 .render_context_menu(line_height, height, y_flipped, window, cx)
3509 .expect("Visible context menu should always render.");
3510 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3511 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3512 },
3513 );
3514 }
3515
3516 fn layout_popovers_above_or_below_line(
3517 &self,
3518 target_position: gpui::Point<Pixels>,
3519 line_height: Pixels,
3520 min_height: Pixels,
3521 max_height: Pixels,
3522 placement: Option<ContextMenuPlacement>,
3523 text_hitbox: &Hitbox,
3524 viewport_bounds: Bounds<Pixels>,
3525 window: &mut Window,
3526 cx: &mut App,
3527 make_sized_popovers: impl FnOnce(
3528 Pixels,
3529 Pixels,
3530 bool,
3531 &mut Window,
3532 &mut App,
3533 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3534 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3535 let text_style = TextStyleRefinement {
3536 line_height: Some(DefiniteLength::Fraction(
3537 BufferLineHeight::Comfortable.value(),
3538 )),
3539 ..Default::default()
3540 };
3541 window.with_text_style(Some(text_style), |window| {
3542 // If the max height won't fit below and there is more space above, put it above the line.
3543 let bottom_y_when_flipped = target_position.y - line_height;
3544 let available_above = bottom_y_when_flipped - text_hitbox.top();
3545 let available_below = text_hitbox.bottom() - target_position.y;
3546 let y_overflows_below = max_height > available_below;
3547 let mut y_flipped = match placement {
3548 Some(ContextMenuPlacement::Above) => true,
3549 Some(ContextMenuPlacement::Below) => false,
3550 None => y_overflows_below && available_above > available_below,
3551 };
3552 let mut height = cmp::min(
3553 max_height,
3554 if y_flipped {
3555 available_above
3556 } else {
3557 available_below
3558 },
3559 );
3560
3561 // If the min height doesn't fit within text bounds, instead fit within the window.
3562 if height < min_height {
3563 let available_above = bottom_y_when_flipped;
3564 let available_below = viewport_bounds.bottom() - target_position.y;
3565 let (y_flipped_override, height_override) = match placement {
3566 Some(ContextMenuPlacement::Above) => {
3567 (true, cmp::min(available_above, min_height))
3568 }
3569 Some(ContextMenuPlacement::Below) => {
3570 (false, cmp::min(available_below, min_height))
3571 }
3572 None => {
3573 if available_below > min_height {
3574 (false, min_height)
3575 } else if available_above > min_height {
3576 (true, min_height)
3577 } else if available_above > available_below {
3578 (true, available_above)
3579 } else {
3580 (false, available_below)
3581 }
3582 }
3583 };
3584 y_flipped = y_flipped_override;
3585 height = height_override;
3586 }
3587
3588 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3589
3590 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3591 // for very narrow windows.
3592 let popovers =
3593 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3594 if popovers.is_empty() {
3595 return None;
3596 }
3597
3598 let max_width = popovers
3599 .iter()
3600 .map(|(_, _, size)| size.width)
3601 .max()
3602 .unwrap_or_default();
3603
3604 let mut current_position = gpui::Point {
3605 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3606 // overflow. Include space for the scrollbar.
3607 x: target_position
3608 .x
3609 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3610 y: if y_flipped {
3611 bottom_y_when_flipped
3612 } else {
3613 target_position.y
3614 },
3615 };
3616
3617 let mut laid_out_popovers = popovers
3618 .into_iter()
3619 .map(|(popover_type, element, size)| {
3620 if y_flipped {
3621 current_position.y -= size.height;
3622 }
3623 let position = current_position;
3624 window.defer_draw(element, current_position, 1);
3625 if !y_flipped {
3626 current_position.y += size.height + MENU_GAP;
3627 } else {
3628 current_position.y -= MENU_GAP;
3629 }
3630 (popover_type, Bounds::new(position, size))
3631 })
3632 .collect::<Vec<_>>();
3633
3634 if y_flipped {
3635 laid_out_popovers.reverse();
3636 }
3637
3638 Some((laid_out_popovers, y_flipped))
3639 })
3640 }
3641
3642 fn layout_context_menu_aside(
3643 &self,
3644 y_flipped: bool,
3645 menu_bounds: Bounds<Pixels>,
3646 target_bounds: Bounds<Pixels>,
3647 max_target_bounds: Bounds<Pixels>,
3648 max_height: Pixels,
3649 must_place_above_or_below: bool,
3650 text_hitbox: &Hitbox,
3651 viewport_bounds: Bounds<Pixels>,
3652 window: &mut Window,
3653 cx: &mut App,
3654 ) {
3655 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3656 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3657 && !must_place_above_or_below
3658 {
3659 let max_width = cmp::min(
3660 available_within_viewport.right - px(1.),
3661 MENU_ASIDE_MAX_WIDTH,
3662 );
3663 let Some(mut aside) = self.render_context_menu_aside(
3664 size(max_width, max_height - POPOVER_Y_PADDING),
3665 window,
3666 cx,
3667 ) else {
3668 return;
3669 };
3670 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3671 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3672 Some((aside, right_position))
3673 } else {
3674 let max_size = size(
3675 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3676 // won't be needed here.
3677 cmp::min(
3678 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3679 viewport_bounds.right(),
3680 ),
3681 cmp::min(
3682 max_height,
3683 cmp::max(
3684 available_within_viewport.top,
3685 available_within_viewport.bottom,
3686 ),
3687 ) - POPOVER_Y_PADDING,
3688 );
3689 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3690 return;
3691 };
3692 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3693
3694 let top_position = point(
3695 menu_bounds.origin.x,
3696 target_bounds.top() - actual_size.height,
3697 );
3698 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3699
3700 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3701 // Prefer to fit on the same side of the line as the menu, then on the other side of
3702 // the line.
3703 if !y_flipped && wanted.height < available.bottom {
3704 Some(bottom_position)
3705 } else if !y_flipped && wanted.height < available.top {
3706 Some(top_position)
3707 } else if y_flipped && wanted.height < available.top {
3708 Some(top_position)
3709 } else if y_flipped && wanted.height < available.bottom {
3710 Some(bottom_position)
3711 } else {
3712 None
3713 }
3714 };
3715
3716 // Prefer choosing a direction using max sizes rather than actual size for stability.
3717 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3718 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3719 let aside_position = fit_within(available_within_text, wanted)
3720 // Fallback: fit max size in window.
3721 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3722 // Fallback: fit actual size in window.
3723 .or_else(|| fit_within(available_within_viewport, actual_size));
3724
3725 aside_position.map(|position| (aside, position))
3726 };
3727
3728 // Skip drawing if it doesn't fit anywhere.
3729 if let Some((aside, position)) = positioned_aside {
3730 window.defer_draw(aside, position, 2);
3731 }
3732 }
3733
3734 fn render_context_menu(
3735 &self,
3736 line_height: Pixels,
3737 height: Pixels,
3738 y_flipped: bool,
3739 window: &mut Window,
3740 cx: &mut App,
3741 ) -> Option<AnyElement> {
3742 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3743 self.editor.update(cx, |editor, cx| {
3744 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3745 })
3746 }
3747
3748 fn render_context_menu_aside(
3749 &self,
3750 max_size: Size<Pixels>,
3751 window: &mut Window,
3752 cx: &mut App,
3753 ) -> Option<AnyElement> {
3754 if max_size.width < px(100.) || max_size.height < px(12.) {
3755 None
3756 } else {
3757 self.editor.update(cx, |editor, cx| {
3758 editor.render_context_menu_aside(max_size, window, cx)
3759 })
3760 }
3761 }
3762
3763 fn layout_mouse_context_menu(
3764 &self,
3765 editor_snapshot: &EditorSnapshot,
3766 visible_range: Range<DisplayRow>,
3767 content_origin: gpui::Point<Pixels>,
3768 window: &mut Window,
3769 cx: &mut App,
3770 ) -> Option<AnyElement> {
3771 let position = self.editor.update(cx, |editor, _cx| {
3772 let visible_start_point = editor.display_to_pixel_point(
3773 DisplayPoint::new(visible_range.start, 0),
3774 editor_snapshot,
3775 window,
3776 )?;
3777 let visible_end_point = editor.display_to_pixel_point(
3778 DisplayPoint::new(visible_range.end, 0),
3779 editor_snapshot,
3780 window,
3781 )?;
3782
3783 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3784 let (source_display_point, position) = match mouse_context_menu.position {
3785 MenuPosition::PinnedToScreen(point) => (None, point),
3786 MenuPosition::PinnedToEditor { source, offset } => {
3787 let source_display_point = source.to_display_point(editor_snapshot);
3788 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3789 let position = content_origin + source_point + offset;
3790 (Some(source_display_point), position)
3791 }
3792 };
3793
3794 let source_included = source_display_point.map_or(true, |source_display_point| {
3795 visible_range
3796 .to_inclusive()
3797 .contains(&source_display_point.row())
3798 });
3799 let position_included =
3800 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3801 if !source_included && !position_included {
3802 None
3803 } else {
3804 Some(position)
3805 }
3806 })?;
3807
3808 let text_style = TextStyleRefinement {
3809 line_height: Some(DefiniteLength::Fraction(
3810 BufferLineHeight::Comfortable.value(),
3811 )),
3812 ..Default::default()
3813 };
3814 window.with_text_style(Some(text_style), |window| {
3815 let mut element = self.editor.update(cx, |editor, _| {
3816 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3817 let context_menu = mouse_context_menu.context_menu.clone();
3818
3819 Some(
3820 deferred(
3821 anchored()
3822 .position(position)
3823 .child(context_menu)
3824 .anchor(Corner::TopLeft)
3825 .snap_to_window_with_margin(px(8.)),
3826 )
3827 .with_priority(1)
3828 .into_any(),
3829 )
3830 })?;
3831
3832 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3833 Some(element)
3834 })
3835 }
3836
3837 fn layout_hover_popovers(
3838 &self,
3839 snapshot: &EditorSnapshot,
3840 hitbox: &Hitbox,
3841 text_hitbox: &Hitbox,
3842 visible_display_row_range: Range<DisplayRow>,
3843 content_origin: gpui::Point<Pixels>,
3844 scroll_pixel_position: gpui::Point<Pixels>,
3845 line_layouts: &[LineWithInvisibles],
3846 line_height: Pixels,
3847 em_width: Pixels,
3848 window: &mut Window,
3849 cx: &mut App,
3850 ) {
3851 struct MeasuredHoverPopover {
3852 element: AnyElement,
3853 size: Size<Pixels>,
3854 horizontal_offset: Pixels,
3855 }
3856
3857 let max_size = size(
3858 (120. * em_width) // Default size
3859 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3860 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3861 (16. * line_height) // Default size
3862 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3863 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3864 );
3865
3866 let hover_popovers = self.editor.update(cx, |editor, cx| {
3867 editor
3868 .hover_state
3869 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3870 });
3871 let Some((position, hover_popovers)) = hover_popovers else {
3872 return;
3873 };
3874
3875 // This is safe because we check on layout whether the required row is available
3876 let hovered_row_layout =
3877 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3878
3879 // Compute Hovered Point
3880 let x =
3881 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3882 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3883 let hovered_point = content_origin + point(x, y);
3884
3885 let mut overall_height = Pixels::ZERO;
3886 let mut measured_hover_popovers = Vec::new();
3887 for mut hover_popover in hover_popovers {
3888 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3889 let horizontal_offset =
3890 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3891
3892 overall_height += HOVER_POPOVER_GAP + size.height;
3893
3894 measured_hover_popovers.push(MeasuredHoverPopover {
3895 element: hover_popover,
3896 size,
3897 horizontal_offset,
3898 });
3899 }
3900 overall_height += HOVER_POPOVER_GAP;
3901
3902 fn draw_occluder(
3903 width: Pixels,
3904 origin: gpui::Point<Pixels>,
3905 window: &mut Window,
3906 cx: &mut App,
3907 ) {
3908 let mut occlusion = div()
3909 .size_full()
3910 .occlude()
3911 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3912 .into_any_element();
3913 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3914 window.defer_draw(occlusion, origin, 2);
3915 }
3916
3917 if hovered_point.y > overall_height {
3918 // There is enough space above. Render popovers above the hovered point
3919 let mut current_y = hovered_point.y;
3920 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3921 let size = popover.size;
3922 let popover_origin = point(
3923 hovered_point.x + popover.horizontal_offset,
3924 current_y - size.height,
3925 );
3926
3927 window.defer_draw(popover.element, popover_origin, 2);
3928 if position != itertools::Position::Last {
3929 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3930 draw_occluder(size.width, origin, window, cx);
3931 }
3932
3933 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3934 }
3935 } else {
3936 // There is not enough space above. Render popovers below the hovered point
3937 let mut current_y = hovered_point.y + line_height;
3938 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3939 let size = popover.size;
3940 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3941
3942 window.defer_draw(popover.element, popover_origin, 2);
3943 if position != itertools::Position::Last {
3944 let origin = point(popover_origin.x, popover_origin.y + size.height);
3945 draw_occluder(size.width, origin, window, cx);
3946 }
3947
3948 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3949 }
3950 }
3951 }
3952
3953 fn layout_diff_hunk_controls(
3954 &self,
3955 row_range: Range<DisplayRow>,
3956 row_infos: &[RowInfo],
3957 text_hitbox: &Hitbox,
3958 position_map: &PositionMap,
3959 newest_cursor_position: Option<DisplayPoint>,
3960 line_height: Pixels,
3961 scroll_pixel_position: gpui::Point<Pixels>,
3962 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3963 editor: Entity<Editor>,
3964 window: &mut Window,
3965 cx: &mut App,
3966 ) -> Vec<AnyElement> {
3967 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
3968 let point_for_position = position_map.point_for_position(window.mouse_position());
3969
3970 let mut controls = vec![];
3971
3972 let active_positions = [
3973 Some(point_for_position.previous_valid),
3974 newest_cursor_position,
3975 ];
3976
3977 for (hunk, _) in display_hunks {
3978 if let DisplayDiffHunk::Unfolded {
3979 display_row_range,
3980 multi_buffer_range,
3981 status,
3982 is_created_file,
3983 ..
3984 } = &hunk
3985 {
3986 if display_row_range.start < row_range.start
3987 || display_row_range.start >= row_range.end
3988 {
3989 continue;
3990 }
3991 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3992 if row_infos[row_ix].diff_status.is_none() {
3993 continue;
3994 }
3995 if row_infos[row_ix]
3996 .diff_status
3997 .is_some_and(|status| status.is_added())
3998 && !status.is_added()
3999 {
4000 continue;
4001 }
4002 if active_positions
4003 .iter()
4004 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4005 {
4006 let y = display_row_range.start.as_f32() * line_height
4007 + text_hitbox.bounds.top()
4008 - scroll_pixel_position.y;
4009
4010 let mut element = render_diff_hunk_controls(
4011 display_row_range.start.0,
4012 status,
4013 multi_buffer_range.clone(),
4014 *is_created_file,
4015 line_height,
4016 &editor,
4017 window,
4018 cx,
4019 );
4020 let size =
4021 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4022
4023 let x = text_hitbox.bounds.right()
4024 - self.style.scrollbar_width
4025 - px(10.)
4026 - size.width;
4027
4028 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4029 element.prepaint(window, cx)
4030 });
4031 controls.push(element);
4032 }
4033 }
4034 }
4035
4036 controls
4037 }
4038
4039 fn layout_signature_help(
4040 &self,
4041 hitbox: &Hitbox,
4042 content_origin: gpui::Point<Pixels>,
4043 scroll_pixel_position: gpui::Point<Pixels>,
4044 newest_selection_head: Option<DisplayPoint>,
4045 start_row: DisplayRow,
4046 line_layouts: &[LineWithInvisibles],
4047 line_height: Pixels,
4048 em_width: Pixels,
4049 window: &mut Window,
4050 cx: &mut App,
4051 ) {
4052 if !self.editor.focus_handle(cx).is_focused(window) {
4053 return;
4054 }
4055 let Some(newest_selection_head) = newest_selection_head else {
4056 return;
4057 };
4058 let selection_row = newest_selection_head.row();
4059 if selection_row < start_row {
4060 return;
4061 }
4062 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4063 else {
4064 return;
4065 };
4066
4067 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4068 - scroll_pixel_position.x
4069 + content_origin.x;
4070 let start_y =
4071 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4072
4073 let max_size = size(
4074 (120. * em_width) // Default size
4075 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4076 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4077 (16. * line_height) // Default size
4078 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4079 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4080 );
4081
4082 let maybe_element = self.editor.update(cx, |editor, cx| {
4083 if let Some(popover) = editor.signature_help_state.popover_mut() {
4084 let element = popover.render(max_size, cx);
4085 Some(element)
4086 } else {
4087 None
4088 }
4089 });
4090 if let Some(mut element) = maybe_element {
4091 let window_size = window.viewport_size();
4092 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4093 let mut point = point(start_x, start_y - size.height);
4094
4095 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4096 if point.x + size.width >= window_size.width {
4097 point.x = window_size.width - size.width;
4098 }
4099
4100 window.defer_draw(element, point, 1)
4101 }
4102 }
4103
4104 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4105 window.paint_layer(layout.hitbox.bounds, |window| {
4106 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4107 let gutter_bg = cx.theme().colors().editor_gutter_background;
4108 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4109 window.paint_quad(fill(
4110 layout.position_map.text_hitbox.bounds,
4111 self.style.background,
4112 ));
4113
4114 if let EditorMode::Full = layout.mode {
4115 let mut active_rows = layout.active_rows.iter().peekable();
4116 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4117 let mut end_row = start_row.0;
4118 while active_rows
4119 .peek()
4120 .map_or(false, |(active_row, has_selection)| {
4121 active_row.0 == end_row + 1
4122 && has_selection.selection == contains_non_empty_selection.selection
4123 })
4124 {
4125 active_rows.next().unwrap();
4126 end_row += 1;
4127 }
4128
4129 if !contains_non_empty_selection.selection {
4130 let highlight_h_range =
4131 match layout.position_map.snapshot.current_line_highlight {
4132 CurrentLineHighlight::Gutter => Some(Range {
4133 start: layout.hitbox.left(),
4134 end: layout.gutter_hitbox.right(),
4135 }),
4136 CurrentLineHighlight::Line => Some(Range {
4137 start: layout.position_map.text_hitbox.bounds.left(),
4138 end: layout.position_map.text_hitbox.bounds.right(),
4139 }),
4140 CurrentLineHighlight::All => Some(Range {
4141 start: layout.hitbox.left(),
4142 end: layout.hitbox.right(),
4143 }),
4144 CurrentLineHighlight::None => None,
4145 };
4146 if let Some(range) = highlight_h_range {
4147 let active_line_bg = cx.theme().colors().editor_active_line_background;
4148 let bounds = Bounds {
4149 origin: point(
4150 range.start,
4151 layout.hitbox.origin.y
4152 + (start_row.as_f32() - scroll_top)
4153 * layout.position_map.line_height,
4154 ),
4155 size: size(
4156 range.end - range.start,
4157 layout.position_map.line_height
4158 * (end_row - start_row.0 + 1) as f32,
4159 ),
4160 };
4161 window.paint_quad(fill(bounds, active_line_bg));
4162 }
4163 }
4164 }
4165
4166 let mut paint_highlight = |highlight_row_start: DisplayRow,
4167 highlight_row_end: DisplayRow,
4168 highlight: crate::LineHighlight,
4169 edges| {
4170 let origin = point(
4171 layout.hitbox.origin.x,
4172 layout.hitbox.origin.y
4173 + (highlight_row_start.as_f32() - scroll_top)
4174 * layout.position_map.line_height,
4175 );
4176 let size = size(
4177 layout.hitbox.size.width,
4178 layout.position_map.line_height
4179 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4180 );
4181 let mut quad = fill(Bounds { origin, size }, highlight.background);
4182 if let Some(border_color) = highlight.border {
4183 quad.border_color = border_color;
4184 quad.border_widths = edges
4185 }
4186 window.paint_quad(quad);
4187 };
4188
4189 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4190 None;
4191 for (&new_row, &new_background) in &layout.highlighted_rows {
4192 match &mut current_paint {
4193 Some((current_background, current_range, mut edges)) => {
4194 let current_background = *current_background;
4195 let new_range_started = current_background != new_background
4196 || current_range.end.next_row() != new_row;
4197 if new_range_started {
4198 if current_range.end.next_row() == new_row {
4199 edges.bottom = px(0.);
4200 };
4201 paint_highlight(
4202 current_range.start,
4203 current_range.end,
4204 current_background,
4205 edges,
4206 );
4207 let edges = Edges {
4208 top: if current_range.end.next_row() != new_row {
4209 px(1.)
4210 } else {
4211 px(0.)
4212 },
4213 bottom: px(1.),
4214 ..Default::default()
4215 };
4216 current_paint = Some((new_background, new_row..new_row, edges));
4217 continue;
4218 } else {
4219 current_range.end = current_range.end.next_row();
4220 }
4221 }
4222 None => {
4223 let edges = Edges {
4224 top: px(1.),
4225 bottom: px(1.),
4226 ..Default::default()
4227 };
4228 current_paint = Some((new_background, new_row..new_row, edges))
4229 }
4230 };
4231 }
4232 if let Some((color, range, edges)) = current_paint {
4233 paint_highlight(range.start, range.end, color, edges);
4234 }
4235
4236 let scroll_left =
4237 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4238
4239 for (wrap_position, active) in layout.wrap_guides.iter() {
4240 let x = (layout.position_map.text_hitbox.origin.x
4241 + *wrap_position
4242 + layout.position_map.em_width / 2.)
4243 - scroll_left;
4244
4245 let show_scrollbars = layout
4246 .scrollbars_layout
4247 .as_ref()
4248 .map_or(false, |layout| layout.visible);
4249
4250 if x < layout.position_map.text_hitbox.origin.x
4251 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4252 {
4253 continue;
4254 }
4255
4256 let color = if *active {
4257 cx.theme().colors().editor_active_wrap_guide
4258 } else {
4259 cx.theme().colors().editor_wrap_guide
4260 };
4261 window.paint_quad(fill(
4262 Bounds {
4263 origin: point(x, layout.position_map.text_hitbox.origin.y),
4264 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4265 },
4266 color,
4267 ));
4268 }
4269 }
4270 })
4271 }
4272
4273 fn paint_indent_guides(
4274 &mut self,
4275 layout: &mut EditorLayout,
4276 window: &mut Window,
4277 cx: &mut App,
4278 ) {
4279 let Some(indent_guides) = &layout.indent_guides else {
4280 return;
4281 };
4282
4283 let faded_color = |color: Hsla, alpha: f32| {
4284 let mut faded = color;
4285 faded.a = alpha;
4286 faded
4287 };
4288
4289 for indent_guide in indent_guides {
4290 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4291 let settings = indent_guide.settings;
4292
4293 // TODO fixed for now, expose them through themes later
4294 const INDENT_AWARE_ALPHA: f32 = 0.2;
4295 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4296 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4297 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4298
4299 let line_color = match (settings.coloring, indent_guide.active) {
4300 (IndentGuideColoring::Disabled, _) => None,
4301 (IndentGuideColoring::Fixed, false) => {
4302 Some(cx.theme().colors().editor_indent_guide)
4303 }
4304 (IndentGuideColoring::Fixed, true) => {
4305 Some(cx.theme().colors().editor_indent_guide_active)
4306 }
4307 (IndentGuideColoring::IndentAware, false) => {
4308 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4309 }
4310 (IndentGuideColoring::IndentAware, true) => {
4311 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4312 }
4313 };
4314
4315 let background_color = match (settings.background_coloring, indent_guide.active) {
4316 (IndentGuideBackgroundColoring::Disabled, _) => None,
4317 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4318 indent_accent_colors,
4319 INDENT_AWARE_BACKGROUND_ALPHA,
4320 )),
4321 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4322 indent_accent_colors,
4323 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4324 )),
4325 };
4326
4327 let requested_line_width = if indent_guide.active {
4328 settings.active_line_width
4329 } else {
4330 settings.line_width
4331 }
4332 .clamp(1, 10);
4333 let mut line_indicator_width = 0.;
4334 if let Some(color) = line_color {
4335 window.paint_quad(fill(
4336 Bounds {
4337 origin: indent_guide.origin,
4338 size: size(px(requested_line_width as f32), indent_guide.length),
4339 },
4340 color,
4341 ));
4342 line_indicator_width = requested_line_width as f32;
4343 }
4344
4345 if let Some(color) = background_color {
4346 let width = indent_guide.single_indent_width - px(line_indicator_width);
4347 window.paint_quad(fill(
4348 Bounds {
4349 origin: point(
4350 indent_guide.origin.x + px(line_indicator_width),
4351 indent_guide.origin.y,
4352 ),
4353 size: size(width, indent_guide.length),
4354 },
4355 color,
4356 ));
4357 }
4358 }
4359 }
4360
4361 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4362 let is_singleton = self.editor.read(cx).is_singleton(cx);
4363
4364 let line_height = layout.position_map.line_height;
4365 window.set_cursor_style(CursorStyle::Arrow, Some(&layout.gutter_hitbox));
4366
4367 for LineNumberLayout {
4368 shaped_line,
4369 hitbox,
4370 } in layout.line_numbers.values()
4371 {
4372 let Some(hitbox) = hitbox else {
4373 continue;
4374 };
4375
4376 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
4377 let color = cx.theme().colors().editor_hover_line_number;
4378
4379 let Some(line) = self
4380 .shape_line_number(shaped_line.text.clone(), color, window)
4381 .log_err()
4382 else {
4383 continue;
4384 };
4385
4386 line.paint(hitbox.origin, line_height, window, cx).log_err()
4387 } else {
4388 shaped_line
4389 .paint(hitbox.origin, line_height, window, cx)
4390 .log_err()
4391 }) else {
4392 continue;
4393 };
4394
4395 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4396 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4397 if is_singleton {
4398 window.set_cursor_style(CursorStyle::IBeam, Some(&hitbox));
4399 } else {
4400 window.set_cursor_style(CursorStyle::PointingHand, Some(&hitbox));
4401 }
4402 }
4403 }
4404
4405 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4406 if layout.display_hunks.is_empty() {
4407 return;
4408 }
4409
4410 let line_height = layout.position_map.line_height;
4411 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4412 for (hunk, hitbox) in &layout.display_hunks {
4413 let hunk_to_paint = match hunk {
4414 DisplayDiffHunk::Folded { .. } => {
4415 let hunk_bounds = Self::diff_hunk_bounds(
4416 &layout.position_map.snapshot,
4417 line_height,
4418 layout.gutter_hitbox.bounds,
4419 &hunk,
4420 );
4421 Some((
4422 hunk_bounds,
4423 cx.theme().colors().version_control_modified,
4424 Corners::all(px(0.)),
4425 DiffHunkStatus::modified_none(),
4426 ))
4427 }
4428 DisplayDiffHunk::Unfolded {
4429 status,
4430 display_row_range,
4431 ..
4432 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4433 DiffHunkStatusKind::Added => (
4434 hunk_hitbox.bounds,
4435 cx.theme().colors().version_control_added,
4436 Corners::all(px(0.)),
4437 *status,
4438 ),
4439 DiffHunkStatusKind::Modified => (
4440 hunk_hitbox.bounds,
4441 cx.theme().colors().version_control_modified,
4442 Corners::all(px(0.)),
4443 *status,
4444 ),
4445 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4446 hunk_hitbox.bounds,
4447 cx.theme().colors().version_control_deleted,
4448 Corners::all(px(0.)),
4449 *status,
4450 ),
4451 DiffHunkStatusKind::Deleted => (
4452 Bounds::new(
4453 point(
4454 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4455 hunk_hitbox.origin.y,
4456 ),
4457 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
4458 ),
4459 cx.theme().colors().version_control_deleted,
4460 Corners::all(1. * line_height),
4461 *status,
4462 ),
4463 }),
4464 };
4465
4466 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
4467 // Flatten the background color with the editor color to prevent
4468 // elements below transparent hunks from showing through
4469 let flattened_background_color = cx
4470 .theme()
4471 .colors()
4472 .editor_background
4473 .blend(background_color);
4474
4475 if !Self::diff_hunk_hollow(status, cx) {
4476 window.paint_quad(quad(
4477 hunk_bounds,
4478 corner_radii,
4479 flattened_background_color,
4480 Edges::default(),
4481 transparent_black(),
4482 BorderStyle::default(),
4483 ));
4484 } else {
4485 let flattened_unstaged_background_color = cx
4486 .theme()
4487 .colors()
4488 .editor_background
4489 .blend(background_color.opacity(0.3));
4490
4491 window.paint_quad(quad(
4492 hunk_bounds,
4493 corner_radii,
4494 flattened_unstaged_background_color,
4495 Edges::all(Pixels(1.0)),
4496 flattened_background_color,
4497 BorderStyle::Solid,
4498 ));
4499 }
4500 }
4501 }
4502 });
4503 }
4504
4505 fn gutter_strip_width(line_height: Pixels) -> Pixels {
4506 (0.275 * line_height).floor()
4507 }
4508
4509 fn diff_hunk_bounds(
4510 snapshot: &EditorSnapshot,
4511 line_height: Pixels,
4512 gutter_bounds: Bounds<Pixels>,
4513 hunk: &DisplayDiffHunk,
4514 ) -> Bounds<Pixels> {
4515 let scroll_position = snapshot.scroll_position();
4516 let scroll_top = scroll_position.y * line_height;
4517 let gutter_strip_width = Self::gutter_strip_width(line_height);
4518
4519 match hunk {
4520 DisplayDiffHunk::Folded { display_row, .. } => {
4521 let start_y = display_row.as_f32() * line_height - scroll_top;
4522 let end_y = start_y + line_height;
4523 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4524 let highlight_size = size(gutter_strip_width, end_y - start_y);
4525 Bounds::new(highlight_origin, highlight_size)
4526 }
4527 DisplayDiffHunk::Unfolded {
4528 display_row_range,
4529 status,
4530 ..
4531 } => {
4532 if status.is_deleted() && display_row_range.is_empty() {
4533 let row = display_row_range.start;
4534
4535 let offset = line_height / 2.;
4536 let start_y = row.as_f32() * line_height - offset - scroll_top;
4537 let end_y = start_y + line_height;
4538
4539 let width = (0.35 * line_height).floor();
4540 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4541 let highlight_size = size(width, end_y - start_y);
4542 Bounds::new(highlight_origin, highlight_size)
4543 } else {
4544 let start_row = display_row_range.start;
4545 let end_row = display_row_range.end;
4546 // If we're in a multibuffer, row range span might include an
4547 // excerpt header, so if we were to draw the marker straight away,
4548 // the hunk might include the rows of that header.
4549 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4550 // Instead, we simply check whether the range we're dealing with includes
4551 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4552 let end_row_in_current_excerpt = snapshot
4553 .blocks_in_range(start_row..end_row)
4554 .find_map(|(start_row, block)| {
4555 if matches!(block, Block::ExcerptBoundary { .. }) {
4556 Some(start_row)
4557 } else {
4558 None
4559 }
4560 })
4561 .unwrap_or(end_row);
4562
4563 let start_y = start_row.as_f32() * line_height - scroll_top;
4564 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4565
4566 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4567 let highlight_size = size(gutter_strip_width, end_y - start_y);
4568 Bounds::new(highlight_origin, highlight_size)
4569 }
4570 }
4571 }
4572 }
4573
4574 fn paint_gutter_indicators(
4575 &self,
4576 layout: &mut EditorLayout,
4577 window: &mut Window,
4578 cx: &mut App,
4579 ) {
4580 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4581 window.with_element_namespace("crease_toggles", |window| {
4582 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4583 crease_toggle.paint(window, cx);
4584 }
4585 });
4586
4587 window.with_element_namespace("expand_toggles", |window| {
4588 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
4589 expand_toggle.paint(window, cx);
4590 }
4591 });
4592
4593 for breakpoint in layout.breakpoints.iter_mut() {
4594 breakpoint.paint(window, cx);
4595 }
4596
4597 for test_indicator in layout.test_indicators.iter_mut() {
4598 test_indicator.paint(window, cx);
4599 }
4600
4601 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4602 indicator.paint(window, cx);
4603 }
4604 });
4605 }
4606
4607 fn paint_gutter_highlights(
4608 &self,
4609 layout: &mut EditorLayout,
4610 window: &mut Window,
4611 cx: &mut App,
4612 ) {
4613 for (_, hunk_hitbox) in &layout.display_hunks {
4614 if let Some(hunk_hitbox) = hunk_hitbox {
4615 if !self
4616 .editor
4617 .read(cx)
4618 .buffer()
4619 .read(cx)
4620 .all_diff_hunks_expanded()
4621 {
4622 window.set_cursor_style(CursorStyle::PointingHand, Some(hunk_hitbox));
4623 }
4624 }
4625 }
4626
4627 let show_git_gutter = layout
4628 .position_map
4629 .snapshot
4630 .show_git_diff_gutter
4631 .unwrap_or_else(|| {
4632 matches!(
4633 ProjectSettings::get_global(cx).git.git_gutter,
4634 Some(GitGutterSetting::TrackedFiles)
4635 )
4636 });
4637 if show_git_gutter {
4638 Self::paint_gutter_diff_hunks(layout, window, cx)
4639 }
4640
4641 let highlight_width = 0.275 * layout.position_map.line_height;
4642 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4643 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4644 for (range, color) in &layout.highlighted_gutter_ranges {
4645 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4646 layout.visible_display_row_range.start - DisplayRow(1)
4647 } else {
4648 range.start.row()
4649 };
4650 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4651 layout.visible_display_row_range.end + DisplayRow(1)
4652 } else {
4653 range.end.row()
4654 };
4655
4656 let start_y = layout.gutter_hitbox.top()
4657 + start_row.0 as f32 * layout.position_map.line_height
4658 - layout.position_map.scroll_pixel_position.y;
4659 let end_y = layout.gutter_hitbox.top()
4660 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4661 - layout.position_map.scroll_pixel_position.y;
4662 let bounds = Bounds::from_corners(
4663 point(layout.gutter_hitbox.left(), start_y),
4664 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4665 );
4666 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4667 }
4668 });
4669 }
4670
4671 fn paint_blamed_display_rows(
4672 &self,
4673 layout: &mut EditorLayout,
4674 window: &mut Window,
4675 cx: &mut App,
4676 ) {
4677 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4678 return;
4679 };
4680
4681 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4682 for mut blame_element in blamed_display_rows.into_iter() {
4683 blame_element.paint(window, cx);
4684 }
4685 })
4686 }
4687
4688 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4689 window.with_content_mask(
4690 Some(ContentMask {
4691 bounds: layout.position_map.text_hitbox.bounds,
4692 }),
4693 |window| {
4694 let editor = self.editor.read(cx);
4695 if editor.mouse_cursor_hidden {
4696 window.set_cursor_style(CursorStyle::None, None);
4697 } else if editor
4698 .hovered_link_state
4699 .as_ref()
4700 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4701 {
4702 window.set_cursor_style(
4703 CursorStyle::PointingHand,
4704 Some(&layout.position_map.text_hitbox),
4705 );
4706 } else {
4707 window.set_cursor_style(
4708 CursorStyle::IBeam,
4709 Some(&layout.position_map.text_hitbox),
4710 );
4711 };
4712
4713 self.paint_lines_background(layout, window, cx);
4714 let invisible_display_ranges = self.paint_highlights(layout, window);
4715 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4716 self.paint_redactions(layout, window);
4717 self.paint_cursors(layout, window, cx);
4718 self.paint_inline_diagnostics(layout, window, cx);
4719 self.paint_inline_blame(layout, window, cx);
4720 self.paint_diff_hunk_controls(layout, window, cx);
4721 window.with_element_namespace("crease_trailers", |window| {
4722 for trailer in layout.crease_trailers.iter_mut().flatten() {
4723 trailer.element.paint(window, cx);
4724 }
4725 });
4726 },
4727 )
4728 }
4729
4730 fn paint_highlights(
4731 &mut self,
4732 layout: &mut EditorLayout,
4733 window: &mut Window,
4734 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4735 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4736 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4737 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4738 for (range, color) in &layout.highlighted_ranges {
4739 self.paint_highlighted_range(
4740 range.clone(),
4741 *color,
4742 Pixels::ZERO,
4743 line_end_overshoot,
4744 layout,
4745 window,
4746 );
4747 }
4748
4749 let corner_radius = 0.15 * layout.position_map.line_height;
4750
4751 for (player_color, selections) in &layout.selections {
4752 for selection in selections.iter() {
4753 self.paint_highlighted_range(
4754 selection.range.clone(),
4755 player_color.selection,
4756 corner_radius,
4757 corner_radius * 2.,
4758 layout,
4759 window,
4760 );
4761
4762 if selection.is_local && !selection.range.is_empty() {
4763 invisible_display_ranges.push(selection.range.clone());
4764 }
4765 }
4766 }
4767 invisible_display_ranges
4768 })
4769 }
4770
4771 fn paint_lines(
4772 &mut self,
4773 invisible_display_ranges: &[Range<DisplayPoint>],
4774 layout: &mut EditorLayout,
4775 window: &mut Window,
4776 cx: &mut App,
4777 ) {
4778 let whitespace_setting = self
4779 .editor
4780 .read(cx)
4781 .buffer
4782 .read(cx)
4783 .language_settings(cx)
4784 .show_whitespaces;
4785
4786 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4787 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4788 line_with_invisibles.draw(
4789 layout,
4790 row,
4791 layout.content_origin,
4792 whitespace_setting,
4793 invisible_display_ranges,
4794 window,
4795 cx,
4796 )
4797 }
4798
4799 for line_element in &mut layout.line_elements {
4800 line_element.paint(window, cx);
4801 }
4802 }
4803
4804 fn paint_lines_background(
4805 &mut self,
4806 layout: &mut EditorLayout,
4807 window: &mut Window,
4808 cx: &mut App,
4809 ) {
4810 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4811 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4812 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
4813 }
4814 }
4815
4816 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4817 if layout.redacted_ranges.is_empty() {
4818 return;
4819 }
4820
4821 let line_end_overshoot = layout.line_end_overshoot();
4822
4823 // A softer than perfect black
4824 let redaction_color = gpui::rgb(0x0e1111);
4825
4826 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4827 for range in layout.redacted_ranges.iter() {
4828 self.paint_highlighted_range(
4829 range.clone(),
4830 redaction_color.into(),
4831 Pixels::ZERO,
4832 line_end_overshoot,
4833 layout,
4834 window,
4835 );
4836 }
4837 });
4838 }
4839
4840 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4841 for cursor in &mut layout.visible_cursors {
4842 cursor.paint(layout.content_origin, window, cx);
4843 }
4844 }
4845
4846 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4847 let Some(scrollbars_layout) = &layout.scrollbars_layout else {
4848 return;
4849 };
4850
4851 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
4852 let hitbox = &scrollbar_layout.hitbox;
4853 let thumb_bounds = scrollbar_layout.thumb_bounds();
4854
4855 if scrollbars_layout.visible {
4856 let scrollbar_edges = match axis {
4857 ScrollbarAxis::Horizontal => Edges {
4858 top: Pixels::ZERO,
4859 right: Pixels::ZERO,
4860 bottom: Pixels::ZERO,
4861 left: Pixels::ZERO,
4862 },
4863 ScrollbarAxis::Vertical => Edges {
4864 top: Pixels::ZERO,
4865 right: Pixels::ZERO,
4866 bottom: Pixels::ZERO,
4867 left: ScrollbarLayout::BORDER_WIDTH,
4868 },
4869 };
4870
4871 window.paint_layer(hitbox.bounds, |window| {
4872 window.paint_quad(quad(
4873 hitbox.bounds,
4874 Corners::default(),
4875 cx.theme().colors().scrollbar_track_background,
4876 scrollbar_edges,
4877 cx.theme().colors().scrollbar_track_border,
4878 BorderStyle::Solid,
4879 ));
4880
4881 if axis == ScrollbarAxis::Vertical {
4882 let fast_markers =
4883 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4884 // Refresh slow scrollbar markers in the background. Below, we
4885 // paint whatever markers have already been computed.
4886 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4887
4888 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4889 for marker in markers.iter().chain(&fast_markers) {
4890 let mut marker = marker.clone();
4891 marker.bounds.origin += hitbox.origin;
4892 window.paint_quad(marker);
4893 }
4894 }
4895
4896 window.paint_quad(quad(
4897 thumb_bounds,
4898 Corners::default(),
4899 cx.theme().colors().scrollbar_thumb_background,
4900 scrollbar_edges,
4901 cx.theme().colors().scrollbar_thumb_border,
4902 BorderStyle::Solid,
4903 ));
4904 })
4905 }
4906 window.set_cursor_style(CursorStyle::Arrow, Some(&hitbox));
4907 }
4908
4909 window.on_mouse_event({
4910 let editor = self.editor.clone();
4911 let scrollbars_layout = scrollbars_layout.clone();
4912
4913 let mut mouse_position = window.mouse_position();
4914 move |event: &MouseMoveEvent, phase, window, cx| {
4915 if phase == DispatchPhase::Capture {
4916 return;
4917 }
4918
4919 editor.update(cx, |editor, cx| {
4920 if let Some((scrollbar_layout, axis)) = event
4921 .pressed_button
4922 .filter(|button| *button == MouseButton::Left)
4923 .and(editor.scroll_manager.dragging_scrollbar_axis())
4924 .and_then(|axis| {
4925 scrollbars_layout
4926 .iter_scrollbars()
4927 .find(|(_, a)| *a == axis)
4928 })
4929 {
4930 let ScrollbarLayout {
4931 hitbox,
4932 text_unit_size,
4933 ..
4934 } = scrollbar_layout;
4935
4936 let old_position = mouse_position.along(axis);
4937 let new_position = event.position.along(axis);
4938 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
4939 .contains(&old_position)
4940 {
4941 let position = editor.scroll_position(cx).apply_along(axis, |p| {
4942 (p + (new_position - old_position) / *text_unit_size).max(0.)
4943 });
4944 editor.set_scroll_position(position, window, cx);
4945 }
4946 cx.stop_propagation();
4947 } else {
4948 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4949 }
4950
4951 if scrollbars_layout.get_hovered_axis(window).is_some() {
4952 editor.scroll_manager.show_scrollbars(window, cx);
4953 }
4954
4955 mouse_position = event.position;
4956 })
4957 }
4958 });
4959
4960 if self.editor.read(cx).scroll_manager.any_scrollbar_dragged() {
4961 window.on_mouse_event({
4962 let editor = self.editor.clone();
4963 move |_: &MouseUpEvent, phase, _, cx| {
4964 if phase == DispatchPhase::Capture {
4965 return;
4966 }
4967
4968 editor.update(cx, |editor, cx| {
4969 editor.scroll_manager.reset_scrollbar_dragging_state(cx);
4970 cx.stop_propagation();
4971 });
4972 }
4973 });
4974 } else {
4975 window.on_mouse_event({
4976 let editor = self.editor.clone();
4977 let scrollbars_layout = scrollbars_layout.clone();
4978
4979 move |event: &MouseDownEvent, phase, window, cx| {
4980 if phase == DispatchPhase::Capture {
4981 return;
4982 }
4983 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
4984 else {
4985 return;
4986 };
4987
4988 let ScrollbarLayout {
4989 hitbox,
4990 visible_range,
4991 text_unit_size,
4992 ..
4993 } = scrollbar_layout;
4994
4995 let thumb_bounds = scrollbar_layout.thumb_bounds();
4996
4997 editor.update(cx, |editor, cx| {
4998 editor.scroll_manager.set_dragged_scrollbar_axis(axis, cx);
4999
5000 let event_position = event.position.along(axis);
5001
5002 if event_position < thumb_bounds.origin.along(axis)
5003 || thumb_bounds.bottom_right().along(axis) < event_position
5004 {
5005 let center_position = ((event_position - hitbox.origin.along(axis))
5006 / *text_unit_size)
5007 .round() as u32;
5008 let start_position = center_position.saturating_sub(
5009 (visible_range.end - visible_range.start) as u32 / 2,
5010 );
5011
5012 let position = editor
5013 .scroll_position(cx)
5014 .apply_along(axis, |_| start_position as f32);
5015
5016 editor.set_scroll_position(position, window, cx);
5017 } else {
5018 editor.scroll_manager.show_scrollbars(window, cx);
5019 }
5020
5021 cx.stop_propagation();
5022 });
5023 }
5024 });
5025 }
5026 }
5027
5028 fn collect_fast_scrollbar_markers(
5029 &self,
5030 layout: &EditorLayout,
5031 scrollbar_layout: &ScrollbarLayout,
5032 cx: &mut App,
5033 ) -> Vec<PaintQuad> {
5034 const LIMIT: usize = 100;
5035 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5036 return vec![];
5037 }
5038 let cursor_ranges = layout
5039 .cursors
5040 .iter()
5041 .map(|(point, color)| ColoredRange {
5042 start: point.row(),
5043 end: point.row(),
5044 color: *color,
5045 })
5046 .collect_vec();
5047 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5048 }
5049
5050 fn refresh_slow_scrollbar_markers(
5051 &self,
5052 layout: &EditorLayout,
5053 scrollbar_layout: &ScrollbarLayout,
5054 window: &mut Window,
5055 cx: &mut App,
5056 ) {
5057 self.editor.update(cx, |editor, cx| {
5058 if !editor.is_singleton(cx)
5059 || !editor
5060 .scrollbar_marker_state
5061 .should_refresh(scrollbar_layout.hitbox.size)
5062 {
5063 return;
5064 }
5065
5066 let scrollbar_layout = scrollbar_layout.clone();
5067 let background_highlights = editor.background_highlights.clone();
5068 let snapshot = layout.position_map.snapshot.clone();
5069 let theme = cx.theme().clone();
5070 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5071
5072 editor.scrollbar_marker_state.dirty = false;
5073 editor.scrollbar_marker_state.pending_refresh =
5074 Some(cx.spawn_in(window, async move |editor, cx| {
5075 let scrollbar_size = scrollbar_layout.hitbox.size;
5076 let scrollbar_markers = cx
5077 .background_spawn(async move {
5078 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5079 let mut marker_quads = Vec::new();
5080 if scrollbar_settings.git_diff {
5081 let marker_row_ranges =
5082 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5083 let start_display_row =
5084 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5085 .to_display_point(&snapshot.display_snapshot)
5086 .row();
5087 let mut end_display_row =
5088 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5089 .to_display_point(&snapshot.display_snapshot)
5090 .row();
5091 if end_display_row != start_display_row {
5092 end_display_row.0 -= 1;
5093 }
5094 let color = match &hunk.status().kind {
5095 DiffHunkStatusKind::Added => {
5096 theme.colors().version_control_added
5097 }
5098 DiffHunkStatusKind::Modified => {
5099 theme.colors().version_control_modified
5100 }
5101 DiffHunkStatusKind::Deleted => {
5102 theme.colors().version_control_deleted
5103 }
5104 };
5105 ColoredRange {
5106 start: start_display_row,
5107 end: end_display_row,
5108 color,
5109 }
5110 });
5111
5112 marker_quads.extend(
5113 scrollbar_layout
5114 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5115 );
5116 }
5117
5118 for (background_highlight_id, (_, background_ranges)) in
5119 background_highlights.iter()
5120 {
5121 let is_search_highlights = *background_highlight_id
5122 == TypeId::of::<BufferSearchHighlights>();
5123 let is_text_highlights = *background_highlight_id
5124 == TypeId::of::<SelectedTextHighlight>();
5125 let is_symbol_occurrences = *background_highlight_id
5126 == TypeId::of::<DocumentHighlightRead>()
5127 || *background_highlight_id
5128 == TypeId::of::<DocumentHighlightWrite>();
5129 if (is_search_highlights && scrollbar_settings.search_results)
5130 || (is_text_highlights && scrollbar_settings.selected_text)
5131 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5132 {
5133 let mut color = theme.status().info;
5134 if is_symbol_occurrences {
5135 color.fade_out(0.5);
5136 }
5137 let marker_row_ranges = background_ranges.iter().map(|range| {
5138 let display_start = range
5139 .start
5140 .to_display_point(&snapshot.display_snapshot);
5141 let display_end =
5142 range.end.to_display_point(&snapshot.display_snapshot);
5143 ColoredRange {
5144 start: display_start.row(),
5145 end: display_end.row(),
5146 color,
5147 }
5148 });
5149 marker_quads.extend(
5150 scrollbar_layout
5151 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5152 );
5153 }
5154 }
5155
5156 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5157 let diagnostics = snapshot
5158 .buffer_snapshot
5159 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5160 // Don't show diagnostics the user doesn't care about
5161 .filter(|diagnostic| {
5162 match (
5163 scrollbar_settings.diagnostics,
5164 diagnostic.diagnostic.severity,
5165 ) {
5166 (ScrollbarDiagnostics::All, _) => true,
5167 (
5168 ScrollbarDiagnostics::Error,
5169 DiagnosticSeverity::ERROR,
5170 ) => true,
5171 (
5172 ScrollbarDiagnostics::Warning,
5173 DiagnosticSeverity::ERROR
5174 | DiagnosticSeverity::WARNING,
5175 ) => true,
5176 (
5177 ScrollbarDiagnostics::Information,
5178 DiagnosticSeverity::ERROR
5179 | DiagnosticSeverity::WARNING
5180 | DiagnosticSeverity::INFORMATION,
5181 ) => true,
5182 (_, _) => false,
5183 }
5184 })
5185 // We want to sort by severity, in order to paint the most severe diagnostics last.
5186 .sorted_by_key(|diagnostic| {
5187 std::cmp::Reverse(diagnostic.diagnostic.severity)
5188 });
5189
5190 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5191 let start_display = diagnostic
5192 .range
5193 .start
5194 .to_display_point(&snapshot.display_snapshot);
5195 let end_display = diagnostic
5196 .range
5197 .end
5198 .to_display_point(&snapshot.display_snapshot);
5199 let color = match diagnostic.diagnostic.severity {
5200 DiagnosticSeverity::ERROR => theme.status().error,
5201 DiagnosticSeverity::WARNING => theme.status().warning,
5202 DiagnosticSeverity::INFORMATION => theme.status().info,
5203 _ => theme.status().hint,
5204 };
5205 ColoredRange {
5206 start: start_display.row(),
5207 end: end_display.row(),
5208 color,
5209 }
5210 });
5211 marker_quads.extend(
5212 scrollbar_layout
5213 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5214 );
5215 }
5216
5217 Arc::from(marker_quads)
5218 })
5219 .await;
5220
5221 editor.update(cx, |editor, cx| {
5222 editor.scrollbar_marker_state.markers = scrollbar_markers;
5223 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5224 editor.scrollbar_marker_state.pending_refresh = None;
5225 cx.notify();
5226 })?;
5227
5228 Ok(())
5229 }));
5230 });
5231 }
5232
5233 fn paint_highlighted_range(
5234 &self,
5235 range: Range<DisplayPoint>,
5236 color: Hsla,
5237 corner_radius: Pixels,
5238 line_end_overshoot: Pixels,
5239 layout: &EditorLayout,
5240 window: &mut Window,
5241 ) {
5242 let start_row = layout.visible_display_row_range.start;
5243 let end_row = layout.visible_display_row_range.end;
5244 if range.start != range.end {
5245 let row_range = if range.end.column() == 0 {
5246 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5247 } else {
5248 cmp::max(range.start.row(), start_row)
5249 ..cmp::min(range.end.row().next_row(), end_row)
5250 };
5251
5252 let highlighted_range = HighlightedRange {
5253 color,
5254 line_height: layout.position_map.line_height,
5255 corner_radius,
5256 start_y: layout.content_origin.y
5257 + row_range.start.as_f32() * layout.position_map.line_height
5258 - layout.position_map.scroll_pixel_position.y,
5259 lines: row_range
5260 .iter_rows()
5261 .map(|row| {
5262 let line_layout =
5263 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5264 HighlightedRangeLine {
5265 start_x: if row == range.start.row() {
5266 layout.content_origin.x
5267 + line_layout.x_for_index(range.start.column() as usize)
5268 - layout.position_map.scroll_pixel_position.x
5269 } else {
5270 layout.content_origin.x
5271 - layout.position_map.scroll_pixel_position.x
5272 },
5273 end_x: if row == range.end.row() {
5274 layout.content_origin.x
5275 + line_layout.x_for_index(range.end.column() as usize)
5276 - layout.position_map.scroll_pixel_position.x
5277 } else {
5278 layout.content_origin.x + line_layout.width + line_end_overshoot
5279 - layout.position_map.scroll_pixel_position.x
5280 },
5281 }
5282 })
5283 .collect(),
5284 };
5285
5286 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5287 }
5288 }
5289
5290 fn paint_inline_diagnostics(
5291 &mut self,
5292 layout: &mut EditorLayout,
5293 window: &mut Window,
5294 cx: &mut App,
5295 ) {
5296 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5297 inline_diagnostic.1.paint(window, cx);
5298 }
5299 }
5300
5301 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5302 if let Some(mut inline_blame) = layout.inline_blame.take() {
5303 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5304 inline_blame.paint(window, cx);
5305 })
5306 }
5307 }
5308
5309 fn paint_diff_hunk_controls(
5310 &mut self,
5311 layout: &mut EditorLayout,
5312 window: &mut Window,
5313 cx: &mut App,
5314 ) {
5315 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5316 diff_hunk_control.paint(window, cx);
5317 }
5318 }
5319
5320 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5321 for mut block in layout.blocks.drain(..) {
5322 block.element.paint(window, cx);
5323 }
5324 }
5325
5326 fn paint_inline_completion_popover(
5327 &mut self,
5328 layout: &mut EditorLayout,
5329 window: &mut Window,
5330 cx: &mut App,
5331 ) {
5332 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5333 inline_completion_popover.paint(window, cx);
5334 }
5335 }
5336
5337 fn paint_mouse_context_menu(
5338 &mut self,
5339 layout: &mut EditorLayout,
5340 window: &mut Window,
5341 cx: &mut App,
5342 ) {
5343 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5344 mouse_context_menu.paint(window, cx);
5345 }
5346 }
5347
5348 fn paint_scroll_wheel_listener(
5349 &mut self,
5350 layout: &EditorLayout,
5351 window: &mut Window,
5352 cx: &mut App,
5353 ) {
5354 window.on_mouse_event({
5355 let position_map = layout.position_map.clone();
5356 let editor = self.editor.clone();
5357 let hitbox = layout.hitbox.clone();
5358 let mut delta = ScrollDelta::default();
5359
5360 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5361 // accidentally turn off their scrolling.
5362 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5363
5364 move |event: &ScrollWheelEvent, phase, window, cx| {
5365 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5366 delta = delta.coalesce(event.delta);
5367 editor.update(cx, |editor, cx| {
5368 let position_map: &PositionMap = &position_map;
5369
5370 let line_height = position_map.line_height;
5371 let max_glyph_width = position_map.em_width;
5372 let (delta, axis) = match delta {
5373 gpui::ScrollDelta::Pixels(mut pixels) => {
5374 //Trackpad
5375 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5376 (pixels, axis)
5377 }
5378
5379 gpui::ScrollDelta::Lines(lines) => {
5380 //Not trackpad
5381 let pixels =
5382 point(lines.x * max_glyph_width, lines.y * line_height);
5383 (pixels, None)
5384 }
5385 };
5386
5387 let current_scroll_position = position_map.snapshot.scroll_position();
5388 let x = (current_scroll_position.x * max_glyph_width
5389 - (delta.x * scroll_sensitivity))
5390 / max_glyph_width;
5391 let y = (current_scroll_position.y * line_height
5392 - (delta.y * scroll_sensitivity))
5393 / line_height;
5394 let mut scroll_position =
5395 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5396 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5397 if forbid_vertical_scroll {
5398 scroll_position.y = current_scroll_position.y;
5399 }
5400
5401 if scroll_position != current_scroll_position {
5402 editor.scroll(scroll_position, axis, window, cx);
5403 cx.stop_propagation();
5404 } else if y < 0. {
5405 // Due to clamping, we may fail to detect cases of overscroll to the top;
5406 // We want the scroll manager to get an update in such cases and detect the change of direction
5407 // on the next frame.
5408 cx.notify();
5409 }
5410 });
5411 }
5412 }
5413 });
5414 }
5415
5416 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5417 self.paint_scroll_wheel_listener(layout, window, cx);
5418
5419 window.on_mouse_event({
5420 let position_map = layout.position_map.clone();
5421 let editor = self.editor.clone();
5422 let diff_hunk_range =
5423 layout
5424 .display_hunks
5425 .iter()
5426 .find_map(|(hunk, hunk_hitbox)| match hunk {
5427 DisplayDiffHunk::Folded { .. } => None,
5428 DisplayDiffHunk::Unfolded {
5429 multi_buffer_range, ..
5430 } => {
5431 if hunk_hitbox
5432 .as_ref()
5433 .map(|hitbox| hitbox.is_hovered(window))
5434 .unwrap_or(false)
5435 {
5436 Some(multi_buffer_range.clone())
5437 } else {
5438 None
5439 }
5440 }
5441 });
5442 let line_numbers = layout.line_numbers.clone();
5443
5444 move |event: &MouseDownEvent, phase, window, cx| {
5445 if phase == DispatchPhase::Bubble {
5446 match event.button {
5447 MouseButton::Left => editor.update(cx, |editor, cx| {
5448 let pending_mouse_down = editor
5449 .pending_mouse_down
5450 .get_or_insert_with(Default::default)
5451 .clone();
5452
5453 *pending_mouse_down.borrow_mut() = Some(event.clone());
5454
5455 Self::mouse_left_down(
5456 editor,
5457 event,
5458 diff_hunk_range.clone(),
5459 &position_map,
5460 line_numbers.as_ref(),
5461 window,
5462 cx,
5463 );
5464 }),
5465 MouseButton::Right => editor.update(cx, |editor, cx| {
5466 Self::mouse_right_down(editor, event, &position_map, window, cx);
5467 }),
5468 MouseButton::Middle => editor.update(cx, |editor, cx| {
5469 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5470 }),
5471 _ => {}
5472 };
5473 }
5474 }
5475 });
5476
5477 window.on_mouse_event({
5478 let editor = self.editor.clone();
5479 let position_map = layout.position_map.clone();
5480
5481 move |event: &MouseUpEvent, phase, window, cx| {
5482 if phase == DispatchPhase::Bubble {
5483 editor.update(cx, |editor, cx| {
5484 Self::mouse_up(editor, event, &position_map, window, cx)
5485 });
5486 }
5487 }
5488 });
5489
5490 window.on_mouse_event({
5491 let editor = self.editor.clone();
5492 let position_map = layout.position_map.clone();
5493 let mut captured_mouse_down = None;
5494
5495 move |event: &MouseUpEvent, phase, window, cx| match phase {
5496 // Clear the pending mouse down during the capture phase,
5497 // so that it happens even if another event handler stops
5498 // propagation.
5499 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5500 let pending_mouse_down = editor
5501 .pending_mouse_down
5502 .get_or_insert_with(Default::default)
5503 .clone();
5504
5505 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5506 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5507 captured_mouse_down = pending_mouse_down.take();
5508 window.refresh();
5509 }
5510 }),
5511 // Fire click handlers during the bubble phase.
5512 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5513 if let Some(mouse_down) = captured_mouse_down.take() {
5514 let event = ClickEvent {
5515 down: mouse_down,
5516 up: event.clone(),
5517 };
5518 Self::click(editor, &event, &position_map, window, cx);
5519 }
5520 }),
5521 }
5522 });
5523
5524 window.on_mouse_event({
5525 let position_map = layout.position_map.clone();
5526 let editor = self.editor.clone();
5527
5528 move |event: &MouseMoveEvent, phase, window, cx| {
5529 if phase == DispatchPhase::Bubble {
5530 editor.update(cx, |editor, cx| {
5531 if editor.hover_state.focused(window, cx) {
5532 return;
5533 }
5534 if event.pressed_button == Some(MouseButton::Left)
5535 || event.pressed_button == Some(MouseButton::Middle)
5536 {
5537 Self::mouse_dragged(editor, event, &position_map, window, cx)
5538 }
5539
5540 Self::mouse_moved(editor, event, &position_map, window, cx)
5541 });
5542 }
5543 }
5544 });
5545 }
5546
5547 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5548 bounds.top_right().x - self.style.scrollbar_width
5549 }
5550
5551 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5552 let style = &self.style;
5553 let font_size = style.text.font_size.to_pixels(window.rem_size());
5554 let layout = window
5555 .text_system()
5556 .shape_line(
5557 SharedString::from(" ".repeat(column)),
5558 font_size,
5559 &[TextRun {
5560 len: column,
5561 font: style.text.font(),
5562 color: Hsla::default(),
5563 background_color: None,
5564 underline: None,
5565 strikethrough: None,
5566 }],
5567 )
5568 .unwrap();
5569
5570 layout.width
5571 }
5572
5573 fn max_line_number_width(
5574 &self,
5575 snapshot: &EditorSnapshot,
5576 window: &mut Window,
5577 cx: &mut App,
5578 ) -> Pixels {
5579 let digit_count = snapshot.widest_line_number().ilog10() + 1;
5580 self.column_pixels(digit_count as usize, window, cx)
5581 }
5582
5583 fn shape_line_number(
5584 &self,
5585 text: SharedString,
5586 color: Hsla,
5587 window: &mut Window,
5588 ) -> anyhow::Result<ShapedLine> {
5589 let run = TextRun {
5590 len: text.len(),
5591 font: self.style.text.font(),
5592 color,
5593 background_color: None,
5594 underline: None,
5595 strikethrough: None,
5596 };
5597 window.text_system().shape_line(
5598 text,
5599 self.style.text.font_size.to_pixels(window.rem_size()),
5600 &[run],
5601 )
5602 }
5603
5604 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
5605 let unstaged = status.has_secondary_hunk();
5606 let unstaged_hollow = ProjectSettings::get_global(cx)
5607 .git
5608 .hunk_style
5609 .map_or(false, |style| {
5610 matches!(style, GitHunkStyleSetting::UnstagedHollow)
5611 });
5612
5613 unstaged == unstaged_hollow
5614 }
5615}
5616
5617fn header_jump_data(
5618 snapshot: &EditorSnapshot,
5619 block_row_start: DisplayRow,
5620 height: u32,
5621 for_excerpt: &ExcerptInfo,
5622) -> JumpData {
5623 let range = &for_excerpt.range;
5624 let buffer = &for_excerpt.buffer;
5625 let jump_anchor = range
5626 .primary
5627 .as_ref()
5628 .map_or(range.context.start, |primary| primary.start);
5629
5630 let excerpt_start = range.context.start;
5631 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5632 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5633 0
5634 } else {
5635 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5636 jump_position.row.saturating_sub(excerpt_start_point.row)
5637 };
5638
5639 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5640 .saturating_sub(
5641 snapshot
5642 .scroll_anchor
5643 .scroll_position(&snapshot.display_snapshot)
5644 .y as u32,
5645 );
5646
5647 JumpData::MultiBufferPoint {
5648 excerpt_id: for_excerpt.id,
5649 anchor: jump_anchor,
5650 position: jump_position,
5651 line_offset_from_top,
5652 }
5653}
5654
5655pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5656
5657impl AcceptEditPredictionBinding {
5658 pub fn keystroke(&self) -> Option<&Keystroke> {
5659 if let Some(binding) = self.0.as_ref() {
5660 match &binding.keystrokes() {
5661 [keystroke] => Some(keystroke),
5662 _ => None,
5663 }
5664 } else {
5665 None
5666 }
5667 }
5668}
5669
5670fn prepaint_gutter_button(
5671 button: IconButton,
5672 row: DisplayRow,
5673 line_height: Pixels,
5674 gutter_dimensions: &GutterDimensions,
5675 scroll_pixel_position: gpui::Point<Pixels>,
5676 gutter_hitbox: &Hitbox,
5677 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5678 window: &mut Window,
5679 cx: &mut App,
5680) -> AnyElement {
5681 let mut button = button.into_any_element();
5682
5683 let available_space = size(
5684 AvailableSpace::MinContent,
5685 AvailableSpace::Definite(line_height),
5686 );
5687 let indicator_size = button.layout_as_root(available_space, window, cx);
5688
5689 let blame_width = gutter_dimensions.git_blame_entries_width;
5690 let gutter_width = display_hunks
5691 .binary_search_by(|(hunk, _)| match hunk {
5692 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5693 DisplayDiffHunk::Unfolded {
5694 display_row_range, ..
5695 } => {
5696 if display_row_range.end <= row {
5697 Ordering::Less
5698 } else if display_row_range.start > row {
5699 Ordering::Greater
5700 } else {
5701 Ordering::Equal
5702 }
5703 }
5704 })
5705 .ok()
5706 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5707 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5708
5709 let mut x = left_offset;
5710 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5711 - indicator_size.width
5712 - left_offset;
5713 x += available_width / 2.;
5714
5715 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5716 y += (line_height - indicator_size.height) / 2.;
5717
5718 button.prepaint_as_root(
5719 gutter_hitbox.origin + point(x, y),
5720 available_space,
5721 window,
5722 cx,
5723 );
5724 button
5725}
5726
5727fn render_inline_blame_entry(
5728 editor: Entity<Editor>,
5729 blame: &gpui::Entity<GitBlame>,
5730 blame_entry: BlameEntry,
5731 style: &EditorStyle,
5732 cx: &mut App,
5733) -> AnyElement {
5734 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5735
5736 let author = blame_entry.author.as_deref().unwrap_or_default();
5737 let summary_enabled = ProjectSettings::get_global(cx)
5738 .git
5739 .show_inline_commit_summary();
5740
5741 let text = match blame_entry.summary.as_ref() {
5742 Some(summary) if summary_enabled => {
5743 format!("{}, {} - {}", author, relative_timestamp, summary)
5744 }
5745 _ => format!("{}, {}", author, relative_timestamp),
5746 };
5747 let blame = blame.clone();
5748 let blame_entry = blame_entry.clone();
5749
5750 h_flex()
5751 .id("inline-blame")
5752 .w_full()
5753 .font_family(style.text.font().family)
5754 .text_color(cx.theme().status().hint)
5755 .line_height(style.text.line_height)
5756 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5757 .child(text)
5758 .gap_2()
5759 .hoverable_tooltip(move |window, cx| {
5760 let details = blame.read(cx).details_for_entry(&blame_entry);
5761 let tooltip =
5762 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5763 editor.update(cx, |editor, _| {
5764 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5765 });
5766 tooltip.into()
5767 })
5768 .into_any()
5769}
5770
5771fn render_blame_entry(
5772 ix: usize,
5773 blame: &gpui::Entity<GitBlame>,
5774 blame_entry: BlameEntry,
5775 style: &EditorStyle,
5776 last_used_color: &mut Option<(PlayerColor, Oid)>,
5777 editor: Entity<Editor>,
5778 cx: &mut App,
5779) -> AnyElement {
5780 let mut sha_color = cx
5781 .theme()
5782 .players()
5783 .color_for_participant(blame_entry.sha.into());
5784 // If the last color we used is the same as the one we get for this line, but
5785 // the commit SHAs are different, then we try again to get a different color.
5786 match *last_used_color {
5787 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5788 let index: u32 = blame_entry.sha.into();
5789 sha_color = cx.theme().players().color_for_participant(index + 1);
5790 }
5791 _ => {}
5792 };
5793 last_used_color.replace((sha_color, blame_entry.sha));
5794
5795 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5796
5797 let short_commit_id = blame_entry.sha.display_short();
5798
5799 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5800 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5801 let details = blame.read(cx).details_for_entry(&blame_entry);
5802
5803 h_flex()
5804 .w_full()
5805 .justify_between()
5806 .font_family(style.text.font().family)
5807 .line_height(style.text.line_height)
5808 .id(("blame", ix))
5809 .text_color(cx.theme().status().hint)
5810 .pr_2()
5811 .gap_2()
5812 .child(
5813 h_flex()
5814 .items_center()
5815 .gap_2()
5816 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5817 .child(name),
5818 )
5819 .child(relative_timestamp)
5820 .on_mouse_down(MouseButton::Right, {
5821 let blame_entry = blame_entry.clone();
5822 let details = details.clone();
5823 move |event, window, cx| {
5824 deploy_blame_entry_context_menu(
5825 &blame_entry,
5826 details.as_ref(),
5827 editor.clone(),
5828 event.position,
5829 window,
5830 cx,
5831 );
5832 }
5833 })
5834 .hover(|style| style.bg(cx.theme().colors().element_hover))
5835 .when_some(
5836 details
5837 .as_ref()
5838 .and_then(|details| details.permalink.clone()),
5839 |this, url| {
5840 this.cursor_pointer().on_click(move |_, _, cx| {
5841 cx.stop_propagation();
5842 cx.open_url(url.as_str())
5843 })
5844 },
5845 )
5846 .hoverable_tooltip(move |window, cx| {
5847 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5848 .into()
5849 })
5850 .into_any()
5851}
5852
5853fn deploy_blame_entry_context_menu(
5854 blame_entry: &BlameEntry,
5855 details: Option<&ParsedCommitMessage>,
5856 editor: Entity<Editor>,
5857 position: gpui::Point<Pixels>,
5858 window: &mut Window,
5859 cx: &mut App,
5860) {
5861 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5862 let sha = format!("{}", blame_entry.sha);
5863 menu.on_blur_subscription(Subscription::new(|| {}))
5864 .entry("Copy commit SHA", None, move |_, cx| {
5865 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5866 })
5867 .when_some(
5868 details.and_then(|details| details.permalink.clone()),
5869 |this, url| {
5870 this.entry("Open permalink", None, move |_, cx| {
5871 cx.open_url(url.as_str())
5872 })
5873 },
5874 )
5875 });
5876
5877 editor.update(cx, move |editor, cx| {
5878 editor.mouse_context_menu = Some(MouseContextMenu::new(
5879 MenuPosition::PinnedToScreen(position),
5880 context_menu,
5881 window,
5882 cx,
5883 ));
5884 cx.notify();
5885 });
5886}
5887
5888#[derive(Debug)]
5889pub(crate) struct LineWithInvisibles {
5890 fragments: SmallVec<[LineFragment; 1]>,
5891 invisibles: Vec<Invisible>,
5892 len: usize,
5893 pub(crate) width: Pixels,
5894 font_size: Pixels,
5895}
5896
5897#[allow(clippy::large_enum_variant)]
5898enum LineFragment {
5899 Text(ShapedLine),
5900 Element {
5901 element: Option<AnyElement>,
5902 size: Size<Pixels>,
5903 len: usize,
5904 },
5905}
5906
5907impl fmt::Debug for LineFragment {
5908 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5909 match self {
5910 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5911 LineFragment::Element { size, len, .. } => f
5912 .debug_struct("Element")
5913 .field("size", size)
5914 .field("len", len)
5915 .finish(),
5916 }
5917 }
5918}
5919
5920impl LineWithInvisibles {
5921 fn from_chunks<'a>(
5922 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5923 editor_style: &EditorStyle,
5924 max_line_len: usize,
5925 max_line_count: usize,
5926 editor_mode: EditorMode,
5927 text_width: Pixels,
5928 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5929 window: &mut Window,
5930 cx: &mut App,
5931 ) -> Vec<Self> {
5932 let text_style = &editor_style.text;
5933 let mut layouts = Vec::with_capacity(max_line_count);
5934 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5935 let mut line = String::new();
5936 let mut invisibles = Vec::new();
5937 let mut width = Pixels::ZERO;
5938 let mut len = 0;
5939 let mut styles = Vec::new();
5940 let mut non_whitespace_added = false;
5941 let mut row = 0;
5942 let mut line_exceeded_max_len = false;
5943 let font_size = text_style.font_size.to_pixels(window.rem_size());
5944
5945 let ellipsis = SharedString::from("⋯");
5946
5947 for highlighted_chunk in chunks.chain([HighlightedChunk {
5948 text: "\n",
5949 style: None,
5950 is_tab: false,
5951 replacement: None,
5952 }]) {
5953 if let Some(replacement) = highlighted_chunk.replacement {
5954 if !line.is_empty() {
5955 let shaped_line = window
5956 .text_system()
5957 .shape_line(line.clone().into(), font_size, &styles)
5958 .unwrap();
5959 width += shaped_line.width;
5960 len += shaped_line.len;
5961 fragments.push(LineFragment::Text(shaped_line));
5962 line.clear();
5963 styles.clear();
5964 }
5965
5966 match replacement {
5967 ChunkReplacement::Renderer(renderer) => {
5968 let available_width = if renderer.constrain_width {
5969 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
5970 ellipsis.clone()
5971 } else {
5972 SharedString::from(Arc::from(highlighted_chunk.text))
5973 };
5974 let shaped_line = window
5975 .text_system()
5976 .shape_line(
5977 chunk,
5978 font_size,
5979 &[text_style.to_run(highlighted_chunk.text.len())],
5980 )
5981 .unwrap();
5982 AvailableSpace::Definite(shaped_line.width)
5983 } else {
5984 AvailableSpace::MinContent
5985 };
5986
5987 let mut element = (renderer.render)(&mut ChunkRendererContext {
5988 context: cx,
5989 window,
5990 max_width: text_width,
5991 });
5992 let line_height = text_style.line_height_in_pixels(window.rem_size());
5993 let size = element.layout_as_root(
5994 size(available_width, AvailableSpace::Definite(line_height)),
5995 window,
5996 cx,
5997 );
5998
5999 width += size.width;
6000 len += highlighted_chunk.text.len();
6001 fragments.push(LineFragment::Element {
6002 element: Some(element),
6003 size,
6004 len: highlighted_chunk.text.len(),
6005 });
6006 }
6007 ChunkReplacement::Str(x) => {
6008 let text_style = if let Some(style) = highlighted_chunk.style {
6009 Cow::Owned(text_style.clone().highlight(style))
6010 } else {
6011 Cow::Borrowed(text_style)
6012 };
6013
6014 let run = TextRun {
6015 len: x.len(),
6016 font: text_style.font(),
6017 color: text_style.color,
6018 background_color: text_style.background_color,
6019 underline: text_style.underline,
6020 strikethrough: text_style.strikethrough,
6021 };
6022 let line_layout = window
6023 .text_system()
6024 .shape_line(x, font_size, &[run])
6025 .unwrap()
6026 .with_len(highlighted_chunk.text.len());
6027
6028 width += line_layout.width;
6029 len += highlighted_chunk.text.len();
6030 fragments.push(LineFragment::Text(line_layout))
6031 }
6032 }
6033 } else {
6034 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6035 if ix > 0 {
6036 let shaped_line = window
6037 .text_system()
6038 .shape_line(line.clone().into(), font_size, &styles)
6039 .unwrap();
6040 width += shaped_line.width;
6041 len += shaped_line.len;
6042 fragments.push(LineFragment::Text(shaped_line));
6043 layouts.push(Self {
6044 width: mem::take(&mut width),
6045 len: mem::take(&mut len),
6046 fragments: mem::take(&mut fragments),
6047 invisibles: std::mem::take(&mut invisibles),
6048 font_size,
6049 });
6050
6051 line.clear();
6052 styles.clear();
6053 row += 1;
6054 line_exceeded_max_len = false;
6055 non_whitespace_added = false;
6056 if row == max_line_count {
6057 return layouts;
6058 }
6059 }
6060
6061 if !line_chunk.is_empty() && !line_exceeded_max_len {
6062 let text_style = if let Some(style) = highlighted_chunk.style {
6063 Cow::Owned(text_style.clone().highlight(style))
6064 } else {
6065 Cow::Borrowed(text_style)
6066 };
6067
6068 if line.len() + line_chunk.len() > max_line_len {
6069 let mut chunk_len = max_line_len - line.len();
6070 while !line_chunk.is_char_boundary(chunk_len) {
6071 chunk_len -= 1;
6072 }
6073 line_chunk = &line_chunk[..chunk_len];
6074 line_exceeded_max_len = true;
6075 }
6076
6077 styles.push(TextRun {
6078 len: line_chunk.len(),
6079 font: text_style.font(),
6080 color: text_style.color,
6081 background_color: text_style.background_color,
6082 underline: text_style.underline,
6083 strikethrough: text_style.strikethrough,
6084 });
6085
6086 if editor_mode == EditorMode::Full {
6087 // Line wrap pads its contents with fake whitespaces,
6088 // avoid printing them
6089 let is_soft_wrapped = is_row_soft_wrapped(row);
6090 if highlighted_chunk.is_tab {
6091 if non_whitespace_added || !is_soft_wrapped {
6092 invisibles.push(Invisible::Tab {
6093 line_start_offset: line.len(),
6094 line_end_offset: line.len() + line_chunk.len(),
6095 });
6096 }
6097 } else {
6098 invisibles.extend(line_chunk.char_indices().filter_map(
6099 |(index, c)| {
6100 let is_whitespace = c.is_whitespace();
6101 non_whitespace_added |= !is_whitespace;
6102 if is_whitespace
6103 && (non_whitespace_added || !is_soft_wrapped)
6104 {
6105 Some(Invisible::Whitespace {
6106 line_offset: line.len() + index,
6107 })
6108 } else {
6109 None
6110 }
6111 },
6112 ))
6113 }
6114 }
6115
6116 line.push_str(line_chunk);
6117 }
6118 }
6119 }
6120 }
6121
6122 layouts
6123 }
6124
6125 fn prepaint(
6126 &mut self,
6127 line_height: Pixels,
6128 scroll_pixel_position: gpui::Point<Pixels>,
6129 row: DisplayRow,
6130 content_origin: gpui::Point<Pixels>,
6131 line_elements: &mut SmallVec<[AnyElement; 1]>,
6132 window: &mut Window,
6133 cx: &mut App,
6134 ) {
6135 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6136 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6137 for fragment in &mut self.fragments {
6138 match fragment {
6139 LineFragment::Text(line) => {
6140 fragment_origin.x += line.width;
6141 }
6142 LineFragment::Element { element, size, .. } => {
6143 let mut element = element
6144 .take()
6145 .expect("you can't prepaint LineWithInvisibles twice");
6146
6147 // Center the element vertically within the line.
6148 let mut element_origin = fragment_origin;
6149 element_origin.y += (line_height - size.height) / 2.;
6150 element.prepaint_at(element_origin, window, cx);
6151 line_elements.push(element);
6152
6153 fragment_origin.x += size.width;
6154 }
6155 }
6156 }
6157 }
6158
6159 fn draw(
6160 &self,
6161 layout: &EditorLayout,
6162 row: DisplayRow,
6163 content_origin: gpui::Point<Pixels>,
6164 whitespace_setting: ShowWhitespaceSetting,
6165 selection_ranges: &[Range<DisplayPoint>],
6166 window: &mut Window,
6167 cx: &mut App,
6168 ) {
6169 let line_height = layout.position_map.line_height;
6170 let line_y = line_height
6171 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6172
6173 let mut fragment_origin =
6174 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6175
6176 for fragment in &self.fragments {
6177 match fragment {
6178 LineFragment::Text(line) => {
6179 line.paint(fragment_origin, line_height, window, cx)
6180 .log_err();
6181 fragment_origin.x += line.width;
6182 }
6183 LineFragment::Element { size, .. } => {
6184 fragment_origin.x += size.width;
6185 }
6186 }
6187 }
6188
6189 self.draw_invisibles(
6190 selection_ranges,
6191 layout,
6192 content_origin,
6193 line_y,
6194 row,
6195 line_height,
6196 whitespace_setting,
6197 window,
6198 cx,
6199 );
6200 }
6201
6202 fn draw_background(
6203 &self,
6204 layout: &EditorLayout,
6205 row: DisplayRow,
6206 content_origin: gpui::Point<Pixels>,
6207 window: &mut Window,
6208 cx: &mut App,
6209 ) {
6210 let line_height = layout.position_map.line_height;
6211 let line_y = line_height
6212 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6213
6214 let mut fragment_origin =
6215 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6216
6217 for fragment in &self.fragments {
6218 match fragment {
6219 LineFragment::Text(line) => {
6220 line.paint_background(fragment_origin, line_height, window, cx)
6221 .log_err();
6222 fragment_origin.x += line.width;
6223 }
6224 LineFragment::Element { size, .. } => {
6225 fragment_origin.x += size.width;
6226 }
6227 }
6228 }
6229 }
6230
6231 fn draw_invisibles(
6232 &self,
6233 selection_ranges: &[Range<DisplayPoint>],
6234 layout: &EditorLayout,
6235 content_origin: gpui::Point<Pixels>,
6236 line_y: Pixels,
6237 row: DisplayRow,
6238 line_height: Pixels,
6239 whitespace_setting: ShowWhitespaceSetting,
6240 window: &mut Window,
6241 cx: &mut App,
6242 ) {
6243 let extract_whitespace_info = |invisible: &Invisible| {
6244 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6245 Invisible::Tab {
6246 line_start_offset,
6247 line_end_offset,
6248 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6249 Invisible::Whitespace { line_offset } => {
6250 (*line_offset, line_offset + 1, &layout.space_invisible)
6251 }
6252 };
6253
6254 let x_offset = self.x_for_index(token_offset);
6255 let invisible_offset =
6256 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6257 let origin = content_origin
6258 + gpui::point(
6259 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6260 line_y,
6261 );
6262
6263 (
6264 [token_offset, token_end_offset],
6265 Box::new(move |window: &mut Window, cx: &mut App| {
6266 invisible_symbol
6267 .paint(origin, line_height, window, cx)
6268 .log_err();
6269 }),
6270 )
6271 };
6272
6273 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6274 match whitespace_setting {
6275 ShowWhitespaceSetting::None => (),
6276 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6277 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6278 let invisible_point = DisplayPoint::new(row, start as u32);
6279 if !selection_ranges
6280 .iter()
6281 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6282 {
6283 return;
6284 }
6285
6286 paint(window, cx);
6287 }),
6288
6289 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6290 // - It is a tab
6291 // - It is adjacent to an edge (start or end)
6292 // - It is adjacent to a whitespace (left or right)
6293 ShowWhitespaceSetting::Boundary => {
6294 // 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
6295 // the above cases.
6296 // Note: We zip in the original `invisibles` to check for tab equality
6297 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6298 for (([start, end], paint), invisible) in
6299 invisible_iter.zip_eq(self.invisibles.iter())
6300 {
6301 let should_render = match (&last_seen, invisible) {
6302 (_, Invisible::Tab { .. }) => true,
6303 (Some((_, last_end, _)), _) => *last_end == start,
6304 _ => false,
6305 };
6306
6307 if should_render || start == 0 || end == self.len {
6308 paint(window, cx);
6309
6310 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6311 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6312 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6313 // Note that we need to make sure that the last one is actually adjacent
6314 if !should_render_last && last_end == start {
6315 paint_last(window, cx);
6316 }
6317 }
6318 }
6319
6320 // Manually render anything within a selection
6321 let invisible_point = DisplayPoint::new(row, start as u32);
6322 if selection_ranges.iter().any(|region| {
6323 region.start <= invisible_point && invisible_point < region.end
6324 }) {
6325 paint(window, cx);
6326 }
6327
6328 last_seen = Some((should_render, end, paint));
6329 }
6330 }
6331 }
6332 }
6333
6334 pub fn x_for_index(&self, index: usize) -> Pixels {
6335 let mut fragment_start_x = Pixels::ZERO;
6336 let mut fragment_start_index = 0;
6337
6338 for fragment in &self.fragments {
6339 match fragment {
6340 LineFragment::Text(shaped_line) => {
6341 let fragment_end_index = fragment_start_index + shaped_line.len;
6342 if index < fragment_end_index {
6343 return fragment_start_x
6344 + shaped_line.x_for_index(index - fragment_start_index);
6345 }
6346 fragment_start_x += shaped_line.width;
6347 fragment_start_index = fragment_end_index;
6348 }
6349 LineFragment::Element { len, size, .. } => {
6350 let fragment_end_index = fragment_start_index + len;
6351 if index < fragment_end_index {
6352 return fragment_start_x;
6353 }
6354 fragment_start_x += size.width;
6355 fragment_start_index = fragment_end_index;
6356 }
6357 }
6358 }
6359
6360 fragment_start_x
6361 }
6362
6363 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6364 let mut fragment_start_x = Pixels::ZERO;
6365 let mut fragment_start_index = 0;
6366
6367 for fragment in &self.fragments {
6368 match fragment {
6369 LineFragment::Text(shaped_line) => {
6370 let fragment_end_x = fragment_start_x + shaped_line.width;
6371 if x < fragment_end_x {
6372 return Some(
6373 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6374 );
6375 }
6376 fragment_start_x = fragment_end_x;
6377 fragment_start_index += shaped_line.len;
6378 }
6379 LineFragment::Element { len, size, .. } => {
6380 let fragment_end_x = fragment_start_x + size.width;
6381 if x < fragment_end_x {
6382 return Some(fragment_start_index);
6383 }
6384 fragment_start_index += len;
6385 fragment_start_x = fragment_end_x;
6386 }
6387 }
6388 }
6389
6390 None
6391 }
6392
6393 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6394 let mut fragment_start_index = 0;
6395
6396 for fragment in &self.fragments {
6397 match fragment {
6398 LineFragment::Text(shaped_line) => {
6399 let fragment_end_index = fragment_start_index + shaped_line.len;
6400 if index < fragment_end_index {
6401 return shaped_line.font_id_for_index(index - fragment_start_index);
6402 }
6403 fragment_start_index = fragment_end_index;
6404 }
6405 LineFragment::Element { len, .. } => {
6406 let fragment_end_index = fragment_start_index + len;
6407 if index < fragment_end_index {
6408 return None;
6409 }
6410 fragment_start_index = fragment_end_index;
6411 }
6412 }
6413 }
6414
6415 None
6416 }
6417}
6418
6419#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6420enum Invisible {
6421 /// A tab character
6422 ///
6423 /// A tab character is internally represented by spaces (configured by the user's tab width)
6424 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6425 /// adjacency checks.
6426 Tab {
6427 line_start_offset: usize,
6428 line_end_offset: usize,
6429 },
6430 Whitespace {
6431 line_offset: usize,
6432 },
6433}
6434
6435impl EditorElement {
6436 /// Returns the rem size to use when rendering the [`EditorElement`].
6437 ///
6438 /// This allows UI elements to scale based on the `buffer_font_size`.
6439 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6440 match self.editor.read(cx).mode {
6441 EditorMode::Full => {
6442 let buffer_font_size = self.style.text.font_size;
6443 match buffer_font_size {
6444 AbsoluteLength::Pixels(pixels) => {
6445 let rem_size_scale = {
6446 // Our default UI font size is 14px on a 16px base scale.
6447 // This means the default UI font size is 0.875rems.
6448 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6449
6450 // We then determine the delta between a single rem and the default font
6451 // size scale.
6452 let default_font_size_delta = 1. - default_font_size_scale;
6453
6454 // Finally, we add this delta to 1rem to get the scale factor that
6455 // should be used to scale up the UI.
6456 1. + default_font_size_delta
6457 };
6458
6459 Some(pixels * rem_size_scale)
6460 }
6461 AbsoluteLength::Rems(rems) => {
6462 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6463 }
6464 }
6465 }
6466 // We currently use single-line and auto-height editors in UI contexts,
6467 // so we don't want to scale everything with the buffer font size, as it
6468 // ends up looking off.
6469 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6470 }
6471 }
6472}
6473
6474impl Element for EditorElement {
6475 type RequestLayoutState = ();
6476 type PrepaintState = EditorLayout;
6477
6478 fn id(&self) -> Option<ElementId> {
6479 None
6480 }
6481
6482 fn request_layout(
6483 &mut self,
6484 _: Option<&GlobalElementId>,
6485 window: &mut Window,
6486 cx: &mut App,
6487 ) -> (gpui::LayoutId, ()) {
6488 let rem_size = self.rem_size(cx);
6489 window.with_rem_size(rem_size, |window| {
6490 self.editor.update(cx, |editor, cx| {
6491 editor.set_style(self.style.clone(), window, cx);
6492
6493 let layout_id = match editor.mode {
6494 EditorMode::SingleLine { auto_width } => {
6495 let rem_size = window.rem_size();
6496
6497 let height = self.style.text.line_height_in_pixels(rem_size);
6498 if auto_width {
6499 let editor_handle = cx.entity().clone();
6500 let style = self.style.clone();
6501 window.request_measured_layout(
6502 Style::default(),
6503 move |_, _, window, cx| {
6504 let editor_snapshot = editor_handle
6505 .update(cx, |editor, cx| editor.snapshot(window, cx));
6506 let line = Self::layout_lines(
6507 DisplayRow(0)..DisplayRow(1),
6508 &editor_snapshot,
6509 &style,
6510 px(f32::MAX),
6511 |_| false, // Single lines never soft wrap
6512 window,
6513 cx,
6514 )
6515 .pop()
6516 .unwrap();
6517
6518 let font_id =
6519 window.text_system().resolve_font(&style.text.font());
6520 let font_size =
6521 style.text.font_size.to_pixels(window.rem_size());
6522 let em_width =
6523 window.text_system().em_width(font_id, font_size).unwrap();
6524
6525 size(line.width + em_width, height)
6526 },
6527 )
6528 } else {
6529 let mut style = Style::default();
6530 style.size.height = height.into();
6531 style.size.width = relative(1.).into();
6532 window.request_layout(style, None, cx)
6533 }
6534 }
6535 EditorMode::AutoHeight { max_lines } => {
6536 let editor_handle = cx.entity().clone();
6537 let max_line_number_width =
6538 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6539 window.request_measured_layout(
6540 Style::default(),
6541 move |known_dimensions, available_space, window, cx| {
6542 editor_handle
6543 .update(cx, |editor, cx| {
6544 compute_auto_height_layout(
6545 editor,
6546 max_lines,
6547 max_line_number_width,
6548 known_dimensions,
6549 available_space.width,
6550 window,
6551 cx,
6552 )
6553 })
6554 .unwrap_or_default()
6555 },
6556 )
6557 }
6558 EditorMode::Full => {
6559 let mut style = Style::default();
6560 style.size.width = relative(1.).into();
6561 style.size.height = relative(1.).into();
6562 window.request_layout(style, None, cx)
6563 }
6564 };
6565
6566 (layout_id, ())
6567 })
6568 })
6569 }
6570
6571 fn prepaint(
6572 &mut self,
6573 _: Option<&GlobalElementId>,
6574 bounds: Bounds<Pixels>,
6575 _: &mut Self::RequestLayoutState,
6576 window: &mut Window,
6577 cx: &mut App,
6578 ) -> Self::PrepaintState {
6579 let text_style = TextStyleRefinement {
6580 font_size: Some(self.style.text.font_size),
6581 line_height: Some(self.style.text.line_height),
6582 ..Default::default()
6583 };
6584 let focus_handle = self.editor.focus_handle(cx);
6585 window.set_view_id(self.editor.entity_id());
6586 window.set_focus_handle(&focus_handle, cx);
6587
6588 let rem_size = self.rem_size(cx);
6589 window.with_rem_size(rem_size, |window| {
6590 window.with_text_style(Some(text_style), |window| {
6591 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6592 let mut snapshot = self
6593 .editor
6594 .update(cx, |editor, cx| editor.snapshot(window, cx));
6595 let style = self.style.clone();
6596
6597 let font_id = window.text_system().resolve_font(&style.text.font());
6598 let font_size = style.text.font_size.to_pixels(window.rem_size());
6599 let line_height = style.text.line_height_in_pixels(window.rem_size());
6600 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6601 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6602
6603 let glyph_grid_cell = size(em_width, line_height);
6604
6605 let gutter_dimensions = snapshot
6606 .gutter_dimensions(
6607 font_id,
6608 font_size,
6609 self.max_line_number_width(&snapshot, window, cx),
6610 cx,
6611 )
6612 .unwrap_or_default();
6613 let text_width = bounds.size.width - gutter_dimensions.width;
6614
6615 let editor_width =
6616 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6617
6618 snapshot = self.editor.update(cx, |editor, cx| {
6619 editor.last_bounds = Some(bounds);
6620 editor.gutter_dimensions = gutter_dimensions;
6621 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6622
6623 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6624 snapshot
6625 } else {
6626 let wrap_width = match editor.soft_wrap_mode(cx) {
6627 SoftWrap::GitDiff => None,
6628 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6629 SoftWrap::EditorWidth => Some(editor_width),
6630 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6631 SoftWrap::Bounded(column) => {
6632 Some(editor_width.min(column as f32 * em_advance))
6633 }
6634 };
6635
6636 if editor.set_wrap_width(wrap_width, cx) {
6637 editor.snapshot(window, cx)
6638 } else {
6639 snapshot
6640 }
6641 }
6642 });
6643
6644 let wrap_guides = self
6645 .editor
6646 .read(cx)
6647 .wrap_guides(cx)
6648 .iter()
6649 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6650 .collect::<SmallVec<[_; 2]>>();
6651
6652 let hitbox = window.insert_hitbox(bounds, false);
6653 let gutter_hitbox =
6654 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6655 let text_hitbox = window.insert_hitbox(
6656 Bounds {
6657 origin: gutter_hitbox.top_right(),
6658 size: size(text_width, bounds.size.height),
6659 },
6660 false,
6661 );
6662
6663 // Offset the content_bounds from the text_bounds by the gutter margin (which
6664 // is roughly half a character wide) to make hit testing work more like how we want.
6665 let content_offset = point(gutter_dimensions.margin, Pixels::ZERO);
6666 let content_origin = text_hitbox.origin + content_offset;
6667
6668 let editor_text_bounds =
6669 Bounds::from_corners(content_origin, bounds.bottom_right());
6670
6671 let height_in_lines = editor_text_bounds.size.height / line_height;
6672
6673 let max_row = snapshot.max_point().row().as_f32();
6674
6675 // The max scroll position for the top of the window
6676 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6677 (max_row - height_in_lines + 1.).max(0.)
6678 } else {
6679 let settings = EditorSettings::get_global(cx);
6680 match settings.scroll_beyond_last_line {
6681 ScrollBeyondLastLine::OnePage => max_row,
6682 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6683 ScrollBeyondLastLine::VerticalScrollMargin => {
6684 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6685 .max(0.)
6686 }
6687 }
6688 };
6689
6690 // TODO: Autoscrolling for both axes
6691 let mut autoscroll_request = None;
6692 let mut autoscroll_containing_element = false;
6693 let mut autoscroll_horizontally = false;
6694 self.editor.update(cx, |editor, cx| {
6695 autoscroll_request = editor.autoscroll_request();
6696 autoscroll_containing_element =
6697 autoscroll_request.is_some() || editor.has_pending_selection();
6698 // TODO: Is this horizontal or vertical?!
6699 autoscroll_horizontally = editor.autoscroll_vertically(
6700 bounds,
6701 line_height,
6702 max_scroll_top,
6703 window,
6704 cx,
6705 );
6706 snapshot = editor.snapshot(window, cx);
6707 });
6708
6709 let mut scroll_position = snapshot.scroll_position();
6710 // The scroll position is a fractional point, the whole number of which represents
6711 // the top of the window in terms of display rows.
6712 let start_row = DisplayRow(scroll_position.y as u32);
6713 let max_row = snapshot.max_point().row();
6714 let end_row = cmp::min(
6715 (scroll_position.y + height_in_lines).ceil() as u32,
6716 max_row.next_row().0,
6717 );
6718 let end_row = DisplayRow(end_row);
6719
6720 let row_infos = snapshot
6721 .row_infos(start_row)
6722 .take((start_row..end_row).len())
6723 .collect::<Vec<RowInfo>>();
6724 let is_row_soft_wrapped = |row: usize| {
6725 row_infos
6726 .get(row)
6727 .map_or(true, |info| info.buffer_row.is_none())
6728 };
6729
6730 let start_anchor = if start_row == Default::default() {
6731 Anchor::min()
6732 } else {
6733 snapshot.buffer_snapshot.anchor_before(
6734 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6735 )
6736 };
6737 let end_anchor = if end_row > max_row {
6738 Anchor::max()
6739 } else {
6740 snapshot.buffer_snapshot.anchor_before(
6741 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6742 )
6743 };
6744
6745 let mut highlighted_rows = self
6746 .editor
6747 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6748
6749 let is_light = cx.theme().appearance().is_light();
6750
6751 for (ix, row_info) in row_infos.iter().enumerate() {
6752 let Some(diff_status) = row_info.diff_status else {
6753 continue;
6754 };
6755
6756 let background_color = match diff_status.kind {
6757 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6758 DiffHunkStatusKind::Deleted => {
6759 cx.theme().colors().version_control_deleted
6760 }
6761 DiffHunkStatusKind::Modified => {
6762 debug_panic!("modified diff status for row info");
6763 continue;
6764 }
6765 };
6766
6767 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6768
6769 let hollow_highlight = LineHighlight {
6770 background: (background_color.opacity(if is_light {
6771 0.08
6772 } else {
6773 0.06
6774 }))
6775 .into(),
6776 border: Some(if is_light {
6777 background_color.opacity(0.48)
6778 } else {
6779 background_color.opacity(0.36)
6780 }),
6781 };
6782
6783 let filled_highlight =
6784 solid_background(background_color.opacity(hunk_opacity)).into();
6785
6786 let background = if Self::diff_hunk_hollow(diff_status, cx) {
6787 hollow_highlight
6788 } else {
6789 filled_highlight
6790 };
6791
6792 highlighted_rows
6793 .entry(start_row + DisplayRow(ix as u32))
6794 .or_insert(background);
6795 }
6796
6797 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6798 start_anchor..end_anchor,
6799 &snapshot.display_snapshot,
6800 cx.theme().colors(),
6801 );
6802 let highlighted_gutter_ranges =
6803 self.editor.read(cx).gutter_highlights_in_range(
6804 start_anchor..end_anchor,
6805 &snapshot.display_snapshot,
6806 cx,
6807 );
6808
6809 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6810 start_anchor..end_anchor,
6811 &snapshot.display_snapshot,
6812 cx,
6813 );
6814
6815 let (local_selections, selected_buffer_ids): (
6816 Vec<Selection<Point>>,
6817 Vec<BufferId>,
6818 ) = self.editor.update(cx, |editor, cx| {
6819 let all_selections = editor.selections.all::<Point>(cx);
6820 let selected_buffer_ids = if editor.is_singleton(cx) {
6821 Vec::new()
6822 } else {
6823 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6824
6825 for selection in all_selections {
6826 for buffer_id in snapshot
6827 .buffer_snapshot
6828 .buffer_ids_for_range(selection.range())
6829 {
6830 if selected_buffer_ids.last() != Some(&buffer_id) {
6831 selected_buffer_ids.push(buffer_id);
6832 }
6833 }
6834 }
6835
6836 selected_buffer_ids
6837 };
6838
6839 let mut selections = editor
6840 .selections
6841 .disjoint_in_range(start_anchor..end_anchor, cx);
6842 selections.extend(editor.selections.pending(cx));
6843
6844 (selections, selected_buffer_ids)
6845 });
6846
6847 let (selections, mut active_rows, newest_selection_head) = self
6848 .layout_selections(
6849 start_anchor,
6850 end_anchor,
6851 &local_selections,
6852 &snapshot,
6853 start_row,
6854 end_row,
6855 window,
6856 cx,
6857 );
6858 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
6859 editor.active_breakpoints(start_row..end_row, window, cx)
6860 });
6861 if cx.has_flag::<Debugger>() {
6862 for display_row in breakpoint_rows.keys() {
6863 active_rows.entry(*display_row).or_default().breakpoint = true;
6864 }
6865 }
6866
6867 let line_numbers = self.layout_line_numbers(
6868 Some(&gutter_hitbox),
6869 gutter_dimensions,
6870 line_height,
6871 scroll_position,
6872 start_row..end_row,
6873 &row_infos,
6874 &active_rows,
6875 newest_selection_head,
6876 &snapshot,
6877 window,
6878 cx,
6879 );
6880
6881 // We add the gutter breakpoint indicator to breakpoint_rows after painting
6882 // line numbers so we don't paint a line number debug accent color if a user
6883 // has their mouse over that line when a breakpoint isn't there
6884 if cx.has_flag::<Debugger>() {
6885 let gutter_breakpoint_indicator =
6886 self.editor.read(cx).gutter_breakpoint_indicator.0;
6887 if let Some((gutter_breakpoint_point, _)) =
6888 gutter_breakpoint_indicator.filter(|(_, is_active)| *is_active)
6889 {
6890 breakpoint_rows
6891 .entry(gutter_breakpoint_point.row())
6892 .or_insert_with(|| {
6893 let position = snapshot.display_point_to_anchor(
6894 gutter_breakpoint_point,
6895 Bias::Right,
6896 );
6897 let breakpoint = Breakpoint::new_standard();
6898
6899 (position, breakpoint)
6900 });
6901 }
6902 }
6903
6904 let mut expand_toggles =
6905 window.with_element_namespace("expand_toggles", |window| {
6906 self.layout_expand_toggles(
6907 &gutter_hitbox,
6908 gutter_dimensions,
6909 em_width,
6910 line_height,
6911 scroll_position,
6912 &row_infos,
6913 window,
6914 cx,
6915 )
6916 });
6917
6918 let mut crease_toggles =
6919 window.with_element_namespace("crease_toggles", |window| {
6920 self.layout_crease_toggles(
6921 start_row..end_row,
6922 &row_infos,
6923 &active_rows,
6924 &snapshot,
6925 window,
6926 cx,
6927 )
6928 });
6929 let crease_trailers =
6930 window.with_element_namespace("crease_trailers", |window| {
6931 self.layout_crease_trailers(
6932 row_infos.iter().copied(),
6933 &snapshot,
6934 window,
6935 cx,
6936 )
6937 });
6938
6939 let display_hunks = self.layout_gutter_diff_hunks(
6940 line_height,
6941 &gutter_hitbox,
6942 start_row..end_row,
6943 &snapshot,
6944 window,
6945 cx,
6946 );
6947
6948 let mut line_layouts = Self::layout_lines(
6949 start_row..end_row,
6950 &snapshot,
6951 &self.style,
6952 editor_width,
6953 is_row_soft_wrapped,
6954 window,
6955 cx,
6956 );
6957
6958 let longest_line_blame_width = self
6959 .editor
6960 .update(cx, |editor, cx| {
6961 if !editor.show_git_blame_inline {
6962 return None;
6963 }
6964 let blame = editor.blame.as_ref()?;
6965 let blame_entry = blame
6966 .update(cx, |blame, cx| {
6967 let row_infos =
6968 snapshot.row_infos(snapshot.longest_row()).next()?;
6969 blame.blame_for_rows(&[row_infos], cx).next()
6970 })
6971 .flatten()?;
6972 let mut element = render_inline_blame_entry(
6973 self.editor.clone(),
6974 blame,
6975 blame_entry,
6976 &style,
6977 cx,
6978 );
6979 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6980 Some(
6981 element
6982 .layout_as_root(AvailableSpace::min_size(), window, cx)
6983 .width
6984 + inline_blame_padding,
6985 )
6986 })
6987 .unwrap_or(Pixels::ZERO);
6988
6989 let longest_line_width = layout_line(
6990 snapshot.longest_row(),
6991 &snapshot,
6992 &style,
6993 editor_width,
6994 is_row_soft_wrapped,
6995 window,
6996 cx,
6997 )
6998 .width;
6999
7000 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
7001 text_hitbox.bounds,
7002 glyph_grid_cell,
7003 size(longest_line_width, max_row.as_f32() * line_height),
7004 longest_line_blame_width,
7005 style.scrollbar_width,
7006 editor_width,
7007 EditorSettings::get_global(cx),
7008 );
7009
7010 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
7011
7012 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7013 snapshot.sticky_header_excerpt(scroll_position.y)
7014 } else {
7015 None
7016 };
7017 let sticky_header_excerpt_id =
7018 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7019
7020 let blocks = window.with_element_namespace("blocks", |window| {
7021 self.render_blocks(
7022 start_row..end_row,
7023 &snapshot,
7024 &hitbox,
7025 &text_hitbox,
7026 editor_width,
7027 &mut scroll_width,
7028 &gutter_dimensions,
7029 em_width,
7030 gutter_dimensions.full_width(),
7031 line_height,
7032 &line_layouts,
7033 &local_selections,
7034 &selected_buffer_ids,
7035 is_row_soft_wrapped,
7036 sticky_header_excerpt_id,
7037 window,
7038 cx,
7039 )
7040 });
7041 let mut blocks = match blocks {
7042 Ok(blocks) => blocks,
7043 Err(resized_blocks) => {
7044 self.editor.update(cx, |editor, cx| {
7045 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7046 });
7047 return self.prepaint(None, bounds, &mut (), window, cx);
7048 }
7049 };
7050
7051 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7052 window.with_element_namespace("blocks", |window| {
7053 self.layout_sticky_buffer_header(
7054 sticky_header_excerpt,
7055 scroll_position.y,
7056 line_height,
7057 &snapshot,
7058 &hitbox,
7059 &selected_buffer_ids,
7060 &blocks,
7061 window,
7062 cx,
7063 )
7064 })
7065 });
7066
7067 let start_buffer_row =
7068 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7069 let end_buffer_row =
7070 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7071
7072 let scroll_max = point(
7073 ((scroll_width - editor_text_bounds.size.width) / em_width).max(0.0),
7074 max_scroll_top,
7075 );
7076
7077 self.editor.update(cx, |editor, cx| {
7078 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7079
7080 let autoscrolled = if autoscroll_horizontally {
7081 editor.autoscroll_horizontally(
7082 start_row,
7083 editor_width - (glyph_grid_cell.width / 2.0)
7084 + style.scrollbar_width,
7085 scroll_width,
7086 em_width,
7087 &line_layouts,
7088 cx,
7089 )
7090 } else {
7091 false
7092 };
7093
7094 if clamped || autoscrolled {
7095 snapshot = editor.snapshot(window, cx);
7096 scroll_position = snapshot.scroll_position();
7097 }
7098 });
7099
7100 let scroll_pixel_position = point(
7101 scroll_position.x * em_width,
7102 scroll_position.y * line_height,
7103 );
7104
7105 let indent_guides = self.layout_indent_guides(
7106 content_origin,
7107 text_hitbox.origin,
7108 start_buffer_row..end_buffer_row,
7109 scroll_pixel_position,
7110 line_height,
7111 &snapshot,
7112 window,
7113 cx,
7114 );
7115
7116 let crease_trailers =
7117 window.with_element_namespace("crease_trailers", |window| {
7118 self.prepaint_crease_trailers(
7119 crease_trailers,
7120 &line_layouts,
7121 line_height,
7122 content_origin,
7123 scroll_pixel_position,
7124 em_width,
7125 window,
7126 cx,
7127 )
7128 });
7129
7130 let (inline_completion_popover, inline_completion_popover_origin) = self
7131 .editor
7132 .update(cx, |editor, cx| {
7133 editor.render_edit_prediction_popover(
7134 &text_hitbox.bounds,
7135 content_origin,
7136 &snapshot,
7137 start_row..end_row,
7138 scroll_position.y,
7139 scroll_position.y + height_in_lines,
7140 &line_layouts,
7141 line_height,
7142 scroll_pixel_position,
7143 newest_selection_head,
7144 editor_width,
7145 &style,
7146 window,
7147 cx,
7148 )
7149 })
7150 .unzip();
7151
7152 let mut inline_diagnostics = self.layout_inline_diagnostics(
7153 &line_layouts,
7154 &crease_trailers,
7155 content_origin,
7156 scroll_pixel_position,
7157 inline_completion_popover_origin,
7158 start_row,
7159 end_row,
7160 line_height,
7161 em_width,
7162 &style,
7163 window,
7164 cx,
7165 );
7166
7167 let mut inline_blame = None;
7168 if let Some(newest_selection_head) = newest_selection_head {
7169 let display_row = newest_selection_head.row();
7170 if (start_row..end_row).contains(&display_row) {
7171 let line_ix = display_row.minus(start_row) as usize;
7172 let row_info = &row_infos[line_ix];
7173 let line_layout = &line_layouts[line_ix];
7174 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7175 inline_blame = self.layout_inline_blame(
7176 display_row,
7177 row_info,
7178 line_layout,
7179 crease_trailer_layout,
7180 em_width,
7181 content_origin,
7182 scroll_pixel_position,
7183 line_height,
7184 window,
7185 cx,
7186 );
7187 if inline_blame.is_some() {
7188 // Blame overrides inline diagnostics
7189 inline_diagnostics.remove(&display_row);
7190 }
7191 }
7192 }
7193
7194 let blamed_display_rows = self.layout_blame_entries(
7195 &row_infos,
7196 em_width,
7197 scroll_position,
7198 line_height,
7199 &gutter_hitbox,
7200 gutter_dimensions.git_blame_entries_width,
7201 window,
7202 cx,
7203 );
7204
7205 self.editor.update(cx, |editor, cx| {
7206 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7207
7208 let autoscrolled = if autoscroll_horizontally {
7209 editor.autoscroll_horizontally(
7210 start_row,
7211 editor_width - (glyph_grid_cell.width / 2.0)
7212 + style.scrollbar_width,
7213 scroll_width,
7214 em_width,
7215 &line_layouts,
7216 cx,
7217 )
7218 } else {
7219 false
7220 };
7221
7222 if clamped || autoscrolled {
7223 snapshot = editor.snapshot(window, cx);
7224 scroll_position = snapshot.scroll_position();
7225 }
7226 });
7227
7228 let line_elements = self.prepaint_lines(
7229 start_row,
7230 &mut line_layouts,
7231 line_height,
7232 scroll_pixel_position,
7233 content_origin,
7234 window,
7235 cx,
7236 );
7237
7238 let mut block_start_rows = HashSet::default();
7239
7240 window.with_element_namespace("blocks", |window| {
7241 self.layout_blocks(
7242 &mut blocks,
7243 &mut block_start_rows,
7244 &hitbox,
7245 line_height,
7246 scroll_pixel_position,
7247 window,
7248 cx,
7249 );
7250 });
7251
7252 let cursors = self.collect_cursors(&snapshot, cx);
7253 let visible_row_range = start_row..end_row;
7254 let non_visible_cursors = cursors
7255 .iter()
7256 .any(|c| !visible_row_range.contains(&c.0.row()));
7257
7258 let visible_cursors = self.layout_visible_cursors(
7259 &snapshot,
7260 &selections,
7261 &block_start_rows,
7262 start_row..end_row,
7263 &line_layouts,
7264 &text_hitbox,
7265 content_origin,
7266 scroll_position,
7267 scroll_pixel_position,
7268 line_height,
7269 em_width,
7270 em_advance,
7271 autoscroll_containing_element,
7272 window,
7273 cx,
7274 );
7275
7276 let scrollbars_layout = self.layout_scrollbars(
7277 &snapshot,
7278 scrollbar_layout_information,
7279 content_offset,
7280 scroll_position,
7281 non_visible_cursors,
7282 window,
7283 cx,
7284 );
7285
7286 let gutter_settings = EditorSettings::get_global(cx).gutter;
7287
7288 let mut code_actions_indicator = None;
7289 if let Some(newest_selection_head) = newest_selection_head {
7290 let newest_selection_point =
7291 newest_selection_head.to_point(&snapshot.display_snapshot);
7292
7293 if (start_row..end_row).contains(&newest_selection_head.row()) {
7294 self.layout_cursor_popovers(
7295 line_height,
7296 &text_hitbox,
7297 content_origin,
7298 start_row,
7299 scroll_pixel_position,
7300 &line_layouts,
7301 newest_selection_head,
7302 newest_selection_point,
7303 &style,
7304 window,
7305 cx,
7306 );
7307
7308 let show_code_actions = snapshot
7309 .show_code_actions
7310 .unwrap_or(gutter_settings.code_actions);
7311 if show_code_actions {
7312 let newest_selection_point =
7313 newest_selection_head.to_point(&snapshot.display_snapshot);
7314 if !snapshot
7315 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7316 {
7317 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7318 MultiBufferRow(newest_selection_point.row),
7319 );
7320 if let Some((buffer, range)) = buffer {
7321 let buffer_id = buffer.remote_id();
7322 let row = range.start.row;
7323 let has_test_indicator = self
7324 .editor
7325 .read(cx)
7326 .tasks
7327 .contains_key(&(buffer_id, row));
7328
7329 let has_expand_indicator = row_infos
7330 .get(
7331 (newest_selection_head.row() - start_row).0
7332 as usize,
7333 )
7334 .is_some_and(|row_info| row_info.expand_info.is_some());
7335
7336 if !has_test_indicator && !has_expand_indicator {
7337 code_actions_indicator = self
7338 .layout_code_actions_indicator(
7339 line_height,
7340 newest_selection_head,
7341 scroll_pixel_position,
7342 &gutter_dimensions,
7343 &gutter_hitbox,
7344 &mut breakpoint_rows,
7345 &display_hunks,
7346 window,
7347 cx,
7348 );
7349 }
7350 }
7351 }
7352 }
7353 }
7354 }
7355
7356 self.layout_gutter_menu(
7357 line_height,
7358 &text_hitbox,
7359 content_origin,
7360 scroll_pixel_position,
7361 gutter_dimensions.width - gutter_dimensions.left_padding,
7362 window,
7363 cx,
7364 );
7365
7366 let test_indicators = if gutter_settings.runnables {
7367 self.layout_run_indicators(
7368 line_height,
7369 start_row..end_row,
7370 &row_infos,
7371 scroll_pixel_position,
7372 &gutter_dimensions,
7373 &gutter_hitbox,
7374 &display_hunks,
7375 &snapshot,
7376 &mut breakpoint_rows,
7377 window,
7378 cx,
7379 )
7380 } else {
7381 Vec::new()
7382 };
7383
7384 let show_breakpoints = snapshot
7385 .show_breakpoints
7386 .unwrap_or(gutter_settings.breakpoints);
7387 let breakpoints = if cx.has_flag::<Debugger>() && show_breakpoints {
7388 self.layout_breakpoints(
7389 line_height,
7390 start_row..end_row,
7391 scroll_pixel_position,
7392 &gutter_dimensions,
7393 &gutter_hitbox,
7394 &display_hunks,
7395 &snapshot,
7396 breakpoint_rows,
7397 &row_infos,
7398 window,
7399 cx,
7400 )
7401 } else {
7402 vec![]
7403 };
7404
7405 self.layout_signature_help(
7406 &hitbox,
7407 content_origin,
7408 scroll_pixel_position,
7409 newest_selection_head,
7410 start_row,
7411 &line_layouts,
7412 line_height,
7413 em_width,
7414 window,
7415 cx,
7416 );
7417
7418 if !cx.has_active_drag() {
7419 self.layout_hover_popovers(
7420 &snapshot,
7421 &hitbox,
7422 &text_hitbox,
7423 start_row..end_row,
7424 content_origin,
7425 scroll_pixel_position,
7426 &line_layouts,
7427 line_height,
7428 em_width,
7429 window,
7430 cx,
7431 );
7432 }
7433
7434 let mouse_context_menu = self.layout_mouse_context_menu(
7435 &snapshot,
7436 start_row..end_row,
7437 content_origin,
7438 window,
7439 cx,
7440 );
7441
7442 window.with_element_namespace("crease_toggles", |window| {
7443 self.prepaint_crease_toggles(
7444 &mut crease_toggles,
7445 line_height,
7446 &gutter_dimensions,
7447 gutter_settings,
7448 scroll_pixel_position,
7449 &gutter_hitbox,
7450 window,
7451 cx,
7452 )
7453 });
7454
7455 window.with_element_namespace("expand_toggles", |window| {
7456 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
7457 });
7458
7459 let invisible_symbol_font_size = font_size / 2.;
7460 let tab_invisible = window
7461 .text_system()
7462 .shape_line(
7463 "→".into(),
7464 invisible_symbol_font_size,
7465 &[TextRun {
7466 len: "→".len(),
7467 font: self.style.text.font(),
7468 color: cx.theme().colors().editor_invisible,
7469 background_color: None,
7470 underline: None,
7471 strikethrough: None,
7472 }],
7473 )
7474 .unwrap();
7475 let space_invisible = window
7476 .text_system()
7477 .shape_line(
7478 "•".into(),
7479 invisible_symbol_font_size,
7480 &[TextRun {
7481 len: "•".len(),
7482 font: self.style.text.font(),
7483 color: cx.theme().colors().editor_invisible,
7484 background_color: None,
7485 underline: None,
7486 strikethrough: None,
7487 }],
7488 )
7489 .unwrap();
7490
7491 let mode = snapshot.mode;
7492
7493 let position_map = Rc::new(PositionMap {
7494 size: bounds.size,
7495 visible_row_range,
7496 scroll_pixel_position,
7497 scroll_max,
7498 line_layouts,
7499 line_height,
7500 em_width,
7501 em_advance,
7502 snapshot,
7503 gutter_hitbox: gutter_hitbox.clone(),
7504 text_hitbox: text_hitbox.clone(),
7505 });
7506
7507 self.editor.update(cx, |editor, _| {
7508 editor.last_position_map = Some(position_map.clone())
7509 });
7510
7511 let diff_hunk_controls = self.layout_diff_hunk_controls(
7512 start_row..end_row,
7513 &row_infos,
7514 &text_hitbox,
7515 &position_map,
7516 newest_selection_head,
7517 line_height,
7518 scroll_pixel_position,
7519 &display_hunks,
7520 self.editor.clone(),
7521 window,
7522 cx,
7523 );
7524
7525 EditorLayout {
7526 mode,
7527 position_map,
7528 visible_display_row_range: start_row..end_row,
7529 wrap_guides,
7530 indent_guides,
7531 hitbox,
7532 gutter_hitbox,
7533 display_hunks,
7534 content_origin,
7535 scrollbars_layout,
7536 active_rows,
7537 highlighted_rows,
7538 highlighted_ranges,
7539 highlighted_gutter_ranges,
7540 redacted_ranges,
7541 line_elements,
7542 line_numbers,
7543 blamed_display_rows,
7544 inline_diagnostics,
7545 inline_blame,
7546 blocks,
7547 cursors,
7548 visible_cursors,
7549 selections,
7550 inline_completion_popover,
7551 diff_hunk_controls,
7552 mouse_context_menu,
7553 test_indicators,
7554 breakpoints,
7555 code_actions_indicator,
7556 crease_toggles,
7557 crease_trailers,
7558 tab_invisible,
7559 space_invisible,
7560 sticky_buffer_header,
7561 expand_toggles,
7562 }
7563 })
7564 })
7565 })
7566 }
7567
7568 fn paint(
7569 &mut self,
7570 _: Option<&GlobalElementId>,
7571 bounds: Bounds<gpui::Pixels>,
7572 _: &mut Self::RequestLayoutState,
7573 layout: &mut Self::PrepaintState,
7574 window: &mut Window,
7575 cx: &mut App,
7576 ) {
7577 let focus_handle = self.editor.focus_handle(cx);
7578 let key_context = self
7579 .editor
7580 .update(cx, |editor, cx| editor.key_context(window, cx));
7581
7582 window.set_key_context(key_context);
7583 window.handle_input(
7584 &focus_handle,
7585 ElementInputHandler::new(bounds, self.editor.clone()),
7586 cx,
7587 );
7588 self.register_actions(window, cx);
7589 self.register_key_listeners(window, cx, layout);
7590
7591 let text_style = TextStyleRefinement {
7592 font_size: Some(self.style.text.font_size),
7593 line_height: Some(self.style.text.line_height),
7594 ..Default::default()
7595 };
7596 let rem_size = self.rem_size(cx);
7597 window.with_rem_size(rem_size, |window| {
7598 window.with_text_style(Some(text_style), |window| {
7599 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7600 self.paint_mouse_listeners(layout, window, cx);
7601 self.paint_background(layout, window, cx);
7602 self.paint_indent_guides(layout, window, cx);
7603
7604 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7605 self.paint_blamed_display_rows(layout, window, cx);
7606 self.paint_line_numbers(layout, window, cx);
7607 }
7608
7609 self.paint_text(layout, window, cx);
7610
7611 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7612 self.paint_gutter_highlights(layout, window, cx);
7613 self.paint_gutter_indicators(layout, window, cx);
7614 }
7615
7616 if !layout.blocks.is_empty() {
7617 window.with_element_namespace("blocks", |window| {
7618 self.paint_blocks(layout, window, cx);
7619 });
7620 }
7621
7622 window.with_element_namespace("blocks", |window| {
7623 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7624 sticky_header.paint(window, cx)
7625 }
7626 });
7627
7628 self.paint_scrollbars(layout, window, cx);
7629 self.paint_inline_completion_popover(layout, window, cx);
7630 self.paint_mouse_context_menu(layout, window, cx);
7631 });
7632 })
7633 })
7634 }
7635}
7636
7637pub(super) fn gutter_bounds(
7638 editor_bounds: Bounds<Pixels>,
7639 gutter_dimensions: GutterDimensions,
7640) -> Bounds<Pixels> {
7641 Bounds {
7642 origin: editor_bounds.origin,
7643 size: size(gutter_dimensions.width, editor_bounds.size.height),
7644 }
7645}
7646
7647/// Holds information required for layouting the editor scrollbars.
7648struct ScrollbarLayoutInformation {
7649 /// The bounds of the editor area (excluding the content offset).
7650 editor_bounds: Bounds<Pixels>,
7651 /// The available range to scroll within the document.
7652 scroll_range: Size<Pixels>,
7653 /// The space available for one glyph in the editor.
7654 glyph_grid_cell: Size<Pixels>,
7655}
7656
7657impl ScrollbarLayoutInformation {
7658 pub fn new(
7659 editor_bounds: Bounds<Pixels>,
7660 glyph_grid_cell: Size<Pixels>,
7661 document_size: Size<Pixels>,
7662 longest_line_blame_width: Pixels,
7663 scrollbar_width: Pixels,
7664 editor_width: Pixels,
7665 settings: &EditorSettings,
7666 ) -> Self {
7667 let vertical_overscroll = match settings.scroll_beyond_last_line {
7668 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
7669 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
7670 ScrollBeyondLastLine::VerticalScrollMargin => {
7671 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
7672 }
7673 };
7674
7675 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
7676 glyph_grid_cell.width + scrollbar_width
7677 } else {
7678 px(0.0)
7679 };
7680
7681 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
7682
7683 let scroll_range = document_size + overscroll;
7684
7685 ScrollbarLayoutInformation {
7686 editor_bounds,
7687 scroll_range,
7688 glyph_grid_cell,
7689 }
7690 }
7691}
7692
7693impl IntoElement for EditorElement {
7694 type Element = Self;
7695
7696 fn into_element(self) -> Self::Element {
7697 self
7698 }
7699}
7700
7701pub struct EditorLayout {
7702 position_map: Rc<PositionMap>,
7703 hitbox: Hitbox,
7704 gutter_hitbox: Hitbox,
7705 content_origin: gpui::Point<Pixels>,
7706 scrollbars_layout: Option<EditorScrollbars>,
7707 mode: EditorMode,
7708 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7709 indent_guides: Option<Vec<IndentGuideLayout>>,
7710 visible_display_row_range: Range<DisplayRow>,
7711 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
7712 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7713 line_elements: SmallVec<[AnyElement; 1]>,
7714 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7715 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7716 blamed_display_rows: Option<Vec<AnyElement>>,
7717 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7718 inline_blame: Option<AnyElement>,
7719 blocks: Vec<BlockLayout>,
7720 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7721 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7722 redacted_ranges: Vec<Range<DisplayPoint>>,
7723 cursors: Vec<(DisplayPoint, Hsla)>,
7724 visible_cursors: Vec<CursorLayout>,
7725 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7726 code_actions_indicator: Option<AnyElement>,
7727 test_indicators: Vec<AnyElement>,
7728 breakpoints: Vec<AnyElement>,
7729 crease_toggles: Vec<Option<AnyElement>>,
7730 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
7731 diff_hunk_controls: Vec<AnyElement>,
7732 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7733 inline_completion_popover: Option<AnyElement>,
7734 mouse_context_menu: Option<AnyElement>,
7735 tab_invisible: ShapedLine,
7736 space_invisible: ShapedLine,
7737 sticky_buffer_header: Option<AnyElement>,
7738}
7739
7740impl EditorLayout {
7741 fn line_end_overshoot(&self) -> Pixels {
7742 0.15 * self.position_map.line_height
7743 }
7744}
7745
7746struct LineNumberLayout {
7747 shaped_line: ShapedLine,
7748 hitbox: Option<Hitbox>,
7749}
7750
7751struct ColoredRange<T> {
7752 start: T,
7753 end: T,
7754 color: Hsla,
7755}
7756
7757impl Along for ScrollbarAxes {
7758 type Unit = bool;
7759
7760 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
7761 match axis {
7762 ScrollbarAxis::Horizontal => self.horizontal,
7763 ScrollbarAxis::Vertical => self.vertical,
7764 }
7765 }
7766
7767 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
7768 match axis {
7769 ScrollbarAxis::Horizontal => ScrollbarAxes {
7770 horizontal: f(self.horizontal),
7771 vertical: self.vertical,
7772 },
7773 ScrollbarAxis::Vertical => ScrollbarAxes {
7774 horizontal: self.horizontal,
7775 vertical: f(self.vertical),
7776 },
7777 }
7778 }
7779}
7780
7781#[derive(Clone)]
7782struct EditorScrollbars {
7783 pub vertical: Option<ScrollbarLayout>,
7784 pub horizontal: Option<ScrollbarLayout>,
7785 pub visible: bool,
7786}
7787
7788impl EditorScrollbars {
7789 pub fn from_scrollbar_axes(
7790 settings_visibility: ScrollbarAxes,
7791 layout_information: &ScrollbarLayoutInformation,
7792 content_offset: gpui::Point<Pixels>,
7793 scroll_position: gpui::Point<f32>,
7794 scrollbar_width: Pixels,
7795 show_scrollbars: bool,
7796 window: &mut Window,
7797 ) -> Self {
7798 let ScrollbarLayoutInformation {
7799 editor_bounds,
7800 scroll_range,
7801 glyph_grid_cell,
7802 } = layout_information;
7803
7804 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
7805 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
7806 Corner::BottomLeft,
7807 editor_bounds.bottom_left(),
7808 size(
7809 if settings_visibility.vertical {
7810 editor_bounds.size.width - scrollbar_width
7811 } else {
7812 editor_bounds.size.width
7813 },
7814 scrollbar_width,
7815 ),
7816 ),
7817 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
7818 Corner::TopRight,
7819 editor_bounds.top_right(),
7820 size(scrollbar_width, editor_bounds.size.height),
7821 ),
7822 };
7823
7824 let mut create_scrollbar_layout = |axis| {
7825 settings_visibility
7826 .along(axis)
7827 .then(|| {
7828 (
7829 editor_bounds.size.along(axis) - content_offset.along(axis),
7830 scroll_range.along(axis),
7831 )
7832 })
7833 .filter(|(editor_content_size, scroll_range)| {
7834 // The scrollbar should only be rendered if the content does
7835 // not entirely fit into the editor
7836 // However, this only applies to the horizontal scrollbar, as information about the
7837 // vertical scrollbar layout is always needed for scrollbar diagnostics.
7838 axis != ScrollbarAxis::Horizontal || editor_content_size < scroll_range
7839 })
7840 .map(|(editor_content_size, scroll_range)| {
7841 ScrollbarLayout::new(
7842 window.insert_hitbox(scrollbar_bounds_for(axis), false),
7843 editor_content_size,
7844 scroll_range,
7845 glyph_grid_cell.along(axis),
7846 content_offset.along(axis),
7847 scroll_position.along(axis),
7848 axis,
7849 )
7850 })
7851 };
7852
7853 Self {
7854 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
7855 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
7856 visible: show_scrollbars,
7857 }
7858 }
7859
7860 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
7861 [
7862 (&self.vertical, ScrollbarAxis::Vertical),
7863 (&self.horizontal, ScrollbarAxis::Horizontal),
7864 ]
7865 .into_iter()
7866 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
7867 }
7868
7869 /// Returns the currently hovered scrollbar axis, if any.
7870 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
7871 self.iter_scrollbars()
7872 .find(|s| s.0.hitbox.is_hovered(window))
7873 }
7874}
7875
7876#[derive(Clone)]
7877struct ScrollbarLayout {
7878 hitbox: Hitbox,
7879 visible_range: Range<f32>,
7880 text_unit_size: Pixels,
7881 content_offset: Pixels,
7882 thumb_size: Pixels,
7883 axis: ScrollbarAxis,
7884}
7885
7886impl ScrollbarLayout {
7887 const BORDER_WIDTH: Pixels = px(1.0);
7888 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7889 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7890 const MIN_THUMB_SIZE: Pixels = px(25.0);
7891
7892 fn new(
7893 scrollbar_track_hitbox: Hitbox,
7894 editor_content_size: Pixels,
7895 scroll_range: Pixels,
7896 glyph_space: Pixels,
7897 content_offset: Pixels,
7898 scroll_position: f32,
7899 axis: ScrollbarAxis,
7900 ) -> Self {
7901 let track_bounds = scrollbar_track_hitbox.bounds;
7902 // The length of the track available to the scrollbar thumb. We deliberately
7903 // exclude the content size here so that the thumb aligns with the content.
7904 let track_length = track_bounds.size.along(axis) - content_offset;
7905
7906 let text_units_per_page = editor_content_size / glyph_space;
7907 let visible_range = scroll_position..scroll_position + text_units_per_page;
7908 let total_text_units = scroll_range / glyph_space;
7909
7910 let thumb_percentage = text_units_per_page / total_text_units;
7911 let thumb_size = (track_length * thumb_percentage)
7912 .max(ScrollbarLayout::MIN_THUMB_SIZE)
7913 .min(track_length);
7914 let text_unit_size =
7915 (track_length - thumb_size) / (total_text_units - text_units_per_page).max(0.);
7916
7917 ScrollbarLayout {
7918 hitbox: scrollbar_track_hitbox,
7919 visible_range,
7920 text_unit_size,
7921 content_offset,
7922 thumb_size,
7923 axis,
7924 }
7925 }
7926
7927 fn thumb_bounds(&self) -> Bounds<Pixels> {
7928 let scrollbar_track = &self.hitbox.bounds;
7929 Bounds::new(
7930 scrollbar_track
7931 .origin
7932 .apply_along(self.axis, |origin| self.thumb_origin(origin)),
7933 scrollbar_track
7934 .size
7935 .apply_along(self.axis, |_| self.thumb_size),
7936 )
7937 }
7938
7939 fn thumb_origin(&self, origin: Pixels) -> Pixels {
7940 origin + self.content_offset + self.visible_range.start * self.text_unit_size
7941 }
7942
7943 fn marker_quads_for_ranges(
7944 &self,
7945 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7946 column: Option<usize>,
7947 ) -> Vec<PaintQuad> {
7948 struct MinMax {
7949 min: Pixels,
7950 max: Pixels,
7951 }
7952 let (x_range, height_limit) = if let Some(column) = column {
7953 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7954 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7955 let end = start + column_width;
7956 (
7957 Range { start, end },
7958 MinMax {
7959 min: Self::MIN_MARKER_HEIGHT,
7960 max: px(f32::MAX),
7961 },
7962 )
7963 } else {
7964 (
7965 Range {
7966 start: Self::BORDER_WIDTH,
7967 end: self.hitbox.size.width,
7968 },
7969 MinMax {
7970 min: Self::LINE_MARKER_HEIGHT,
7971 max: Self::LINE_MARKER_HEIGHT,
7972 },
7973 )
7974 };
7975
7976 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7977 let mut pixel_ranges = row_ranges
7978 .into_iter()
7979 .map(|range| {
7980 let start_y = row_to_y(range.start);
7981 let end_y = row_to_y(range.end)
7982 + self
7983 .text_unit_size
7984 .max(height_limit.min)
7985 .min(height_limit.max);
7986 ColoredRange {
7987 start: start_y,
7988 end: end_y,
7989 color: range.color,
7990 }
7991 })
7992 .peekable();
7993
7994 let mut quads = Vec::new();
7995 while let Some(mut pixel_range) = pixel_ranges.next() {
7996 while let Some(next_pixel_range) = pixel_ranges.peek() {
7997 if pixel_range.end >= next_pixel_range.start - px(1.0)
7998 && pixel_range.color == next_pixel_range.color
7999 {
8000 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
8001 pixel_ranges.next();
8002 } else {
8003 break;
8004 }
8005 }
8006
8007 let bounds = Bounds::from_corners(
8008 point(x_range.start, pixel_range.start),
8009 point(x_range.end, pixel_range.end),
8010 );
8011 quads.push(quad(
8012 bounds,
8013 Corners::default(),
8014 pixel_range.color,
8015 Edges::default(),
8016 Hsla::transparent_black(),
8017 BorderStyle::default(),
8018 ));
8019 }
8020
8021 quads
8022 }
8023}
8024
8025struct CreaseTrailerLayout {
8026 element: AnyElement,
8027 bounds: Bounds<Pixels>,
8028}
8029
8030pub(crate) struct PositionMap {
8031 pub size: Size<Pixels>,
8032 pub line_height: Pixels,
8033 pub scroll_pixel_position: gpui::Point<Pixels>,
8034 pub scroll_max: gpui::Point<f32>,
8035 pub em_width: Pixels,
8036 pub em_advance: Pixels,
8037 pub visible_row_range: Range<DisplayRow>,
8038 pub line_layouts: Vec<LineWithInvisibles>,
8039 pub snapshot: EditorSnapshot,
8040 pub text_hitbox: Hitbox,
8041 pub gutter_hitbox: Hitbox,
8042}
8043
8044#[derive(Debug, Copy, Clone)]
8045pub struct PointForPosition {
8046 pub previous_valid: DisplayPoint,
8047 pub next_valid: DisplayPoint,
8048 pub exact_unclipped: DisplayPoint,
8049 pub column_overshoot_after_line_end: u32,
8050}
8051
8052impl PointForPosition {
8053 pub fn as_valid(&self) -> Option<DisplayPoint> {
8054 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
8055 Some(self.previous_valid)
8056 } else {
8057 None
8058 }
8059 }
8060}
8061
8062impl PositionMap {
8063 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
8064 let text_bounds = self.text_hitbox.bounds;
8065 let scroll_position = self.snapshot.scroll_position();
8066 let position = position - text_bounds.origin;
8067 let y = position.y.max(px(0.)).min(self.size.height);
8068 let x = position.x + (scroll_position.x * self.em_width);
8069 let row = ((y / self.line_height) + scroll_position.y) as u32;
8070
8071 let (column, x_overshoot_after_line_end) = if let Some(line) = self
8072 .line_layouts
8073 .get(row as usize - scroll_position.y as usize)
8074 {
8075 if let Some(ix) = line.index_for_x(x) {
8076 (ix as u32, px(0.))
8077 } else {
8078 (line.len as u32, px(0.).max(x - line.width))
8079 }
8080 } else {
8081 (0, x)
8082 };
8083
8084 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8085 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8086 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8087
8088 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8089 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8090 PointForPosition {
8091 previous_valid,
8092 next_valid,
8093 exact_unclipped,
8094 column_overshoot_after_line_end,
8095 }
8096 }
8097}
8098
8099struct BlockLayout {
8100 id: BlockId,
8101 row: Option<DisplayRow>,
8102 element: AnyElement,
8103 available_space: Size<AvailableSpace>,
8104 style: BlockStyle,
8105 is_buffer_header: bool,
8106}
8107
8108pub fn layout_line(
8109 row: DisplayRow,
8110 snapshot: &EditorSnapshot,
8111 style: &EditorStyle,
8112 text_width: Pixels,
8113 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8114 window: &mut Window,
8115 cx: &mut App,
8116) -> LineWithInvisibles {
8117 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8118 LineWithInvisibles::from_chunks(
8119 chunks,
8120 &style,
8121 MAX_LINE_LEN,
8122 1,
8123 snapshot.mode,
8124 text_width,
8125 is_row_soft_wrapped,
8126 window,
8127 cx,
8128 )
8129 .pop()
8130 .unwrap()
8131}
8132
8133#[derive(Debug)]
8134pub struct IndentGuideLayout {
8135 origin: gpui::Point<Pixels>,
8136 length: Pixels,
8137 single_indent_width: Pixels,
8138 depth: u32,
8139 active: bool,
8140 settings: IndentGuideSettings,
8141}
8142
8143pub struct CursorLayout {
8144 origin: gpui::Point<Pixels>,
8145 block_width: Pixels,
8146 line_height: Pixels,
8147 color: Hsla,
8148 shape: CursorShape,
8149 block_text: Option<ShapedLine>,
8150 cursor_name: Option<AnyElement>,
8151}
8152
8153#[derive(Debug)]
8154pub struct CursorName {
8155 string: SharedString,
8156 color: Hsla,
8157 is_top_row: bool,
8158}
8159
8160impl CursorLayout {
8161 pub fn new(
8162 origin: gpui::Point<Pixels>,
8163 block_width: Pixels,
8164 line_height: Pixels,
8165 color: Hsla,
8166 shape: CursorShape,
8167 block_text: Option<ShapedLine>,
8168 ) -> CursorLayout {
8169 CursorLayout {
8170 origin,
8171 block_width,
8172 line_height,
8173 color,
8174 shape,
8175 block_text,
8176 cursor_name: None,
8177 }
8178 }
8179
8180 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8181 Bounds {
8182 origin: self.origin + origin,
8183 size: size(self.block_width, self.line_height),
8184 }
8185 }
8186
8187 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8188 match self.shape {
8189 CursorShape::Bar => Bounds {
8190 origin: self.origin + origin,
8191 size: size(px(2.0), self.line_height),
8192 },
8193 CursorShape::Block | CursorShape::Hollow => Bounds {
8194 origin: self.origin + origin,
8195 size: size(self.block_width, self.line_height),
8196 },
8197 CursorShape::Underline => Bounds {
8198 origin: self.origin
8199 + origin
8200 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8201 size: size(self.block_width, px(2.0)),
8202 },
8203 }
8204 }
8205
8206 pub fn layout(
8207 &mut self,
8208 origin: gpui::Point<Pixels>,
8209 cursor_name: Option<CursorName>,
8210 window: &mut Window,
8211 cx: &mut App,
8212 ) {
8213 if let Some(cursor_name) = cursor_name {
8214 let bounds = self.bounds(origin);
8215 let text_size = self.line_height / 1.5;
8216
8217 let name_origin = if cursor_name.is_top_row {
8218 point(bounds.right() - px(1.), bounds.top())
8219 } else {
8220 match self.shape {
8221 CursorShape::Bar => point(
8222 bounds.right() - px(2.),
8223 bounds.top() - text_size / 2. - px(1.),
8224 ),
8225 _ => point(
8226 bounds.right() - px(1.),
8227 bounds.top() - text_size / 2. - px(1.),
8228 ),
8229 }
8230 };
8231 let mut name_element = div()
8232 .bg(self.color)
8233 .text_size(text_size)
8234 .px_0p5()
8235 .line_height(text_size + px(2.))
8236 .text_color(cursor_name.color)
8237 .child(cursor_name.string.clone())
8238 .into_any_element();
8239
8240 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8241
8242 self.cursor_name = Some(name_element);
8243 }
8244 }
8245
8246 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8247 let bounds = self.bounds(origin);
8248
8249 //Draw background or border quad
8250 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8251 outline(bounds, self.color, BorderStyle::Solid)
8252 } else {
8253 fill(bounds, self.color)
8254 };
8255
8256 if let Some(name) = &mut self.cursor_name {
8257 name.paint(window, cx);
8258 }
8259
8260 window.paint_quad(cursor);
8261
8262 if let Some(block_text) = &self.block_text {
8263 block_text
8264 .paint(self.origin + origin, self.line_height, window, cx)
8265 .log_err();
8266 }
8267 }
8268
8269 pub fn shape(&self) -> CursorShape {
8270 self.shape
8271 }
8272}
8273
8274#[derive(Debug)]
8275pub struct HighlightedRange {
8276 pub start_y: Pixels,
8277 pub line_height: Pixels,
8278 pub lines: Vec<HighlightedRangeLine>,
8279 pub color: Hsla,
8280 pub corner_radius: Pixels,
8281}
8282
8283#[derive(Debug)]
8284pub struct HighlightedRangeLine {
8285 pub start_x: Pixels,
8286 pub end_x: Pixels,
8287}
8288
8289impl HighlightedRange {
8290 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8291 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8292 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8293 self.paint_lines(
8294 self.start_y + self.line_height,
8295 &self.lines[1..],
8296 bounds,
8297 window,
8298 );
8299 } else {
8300 self.paint_lines(self.start_y, &self.lines, bounds, window);
8301 }
8302 }
8303
8304 fn paint_lines(
8305 &self,
8306 start_y: Pixels,
8307 lines: &[HighlightedRangeLine],
8308 _bounds: Bounds<Pixels>,
8309 window: &mut Window,
8310 ) {
8311 if lines.is_empty() {
8312 return;
8313 }
8314
8315 let first_line = lines.first().unwrap();
8316 let last_line = lines.last().unwrap();
8317
8318 let first_top_left = point(first_line.start_x, start_y);
8319 let first_top_right = point(first_line.end_x, start_y);
8320
8321 let curve_height = point(Pixels::ZERO, self.corner_radius);
8322 let curve_width = |start_x: Pixels, end_x: Pixels| {
8323 let max = (end_x - start_x) / 2.;
8324 let width = if max < self.corner_radius {
8325 max
8326 } else {
8327 self.corner_radius
8328 };
8329
8330 point(width, Pixels::ZERO)
8331 };
8332
8333 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8334 let mut builder = gpui::PathBuilder::fill();
8335 builder.move_to(first_top_right - top_curve_width);
8336 builder.curve_to(first_top_right + curve_height, first_top_right);
8337
8338 let mut iter = lines.iter().enumerate().peekable();
8339 while let Some((ix, line)) = iter.next() {
8340 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8341
8342 if let Some((_, next_line)) = iter.peek() {
8343 let next_top_right = point(next_line.end_x, bottom_right.y);
8344
8345 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8346 Ordering::Equal => {
8347 builder.line_to(bottom_right);
8348 }
8349 Ordering::Less => {
8350 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8351 builder.line_to(bottom_right - curve_height);
8352 if self.corner_radius > Pixels::ZERO {
8353 builder.curve_to(bottom_right - curve_width, bottom_right);
8354 }
8355 builder.line_to(next_top_right + curve_width);
8356 if self.corner_radius > Pixels::ZERO {
8357 builder.curve_to(next_top_right + curve_height, next_top_right);
8358 }
8359 }
8360 Ordering::Greater => {
8361 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8362 builder.line_to(bottom_right - curve_height);
8363 if self.corner_radius > Pixels::ZERO {
8364 builder.curve_to(bottom_right + curve_width, bottom_right);
8365 }
8366 builder.line_to(next_top_right - curve_width);
8367 if self.corner_radius > Pixels::ZERO {
8368 builder.curve_to(next_top_right + curve_height, next_top_right);
8369 }
8370 }
8371 }
8372 } else {
8373 let curve_width = curve_width(line.start_x, line.end_x);
8374 builder.line_to(bottom_right - curve_height);
8375 if self.corner_radius > Pixels::ZERO {
8376 builder.curve_to(bottom_right - curve_width, bottom_right);
8377 }
8378
8379 let bottom_left = point(line.start_x, bottom_right.y);
8380 builder.line_to(bottom_left + curve_width);
8381 if self.corner_radius > Pixels::ZERO {
8382 builder.curve_to(bottom_left - curve_height, bottom_left);
8383 }
8384 }
8385 }
8386
8387 if first_line.start_x > last_line.start_x {
8388 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8389 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8390 builder.line_to(second_top_left + curve_height);
8391 if self.corner_radius > Pixels::ZERO {
8392 builder.curve_to(second_top_left + curve_width, second_top_left);
8393 }
8394 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8395 builder.line_to(first_bottom_left - curve_width);
8396 if self.corner_radius > Pixels::ZERO {
8397 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8398 }
8399 }
8400
8401 builder.line_to(first_top_left + curve_height);
8402 if self.corner_radius > Pixels::ZERO {
8403 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8404 }
8405 builder.line_to(first_top_right - top_curve_width);
8406
8407 if let Ok(path) = builder.build() {
8408 window.paint_path(path, self.color);
8409 }
8410 }
8411}
8412
8413enum CursorPopoverType {
8414 CodeContextMenu,
8415 EditPrediction,
8416}
8417
8418pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8419 (delta.pow(1.5) / 100.0).into()
8420}
8421
8422fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8423 (delta.pow(1.2) / 300.0).into()
8424}
8425
8426pub fn register_action<T: Action>(
8427 editor: &Entity<Editor>,
8428 window: &mut Window,
8429 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8430) {
8431 let editor = editor.clone();
8432 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8433 let action = action.downcast_ref().unwrap();
8434 if phase == DispatchPhase::Bubble {
8435 editor.update(cx, |editor, cx| {
8436 listener(editor, action, window, cx);
8437 })
8438 }
8439 })
8440}
8441
8442fn compute_auto_height_layout(
8443 editor: &mut Editor,
8444 max_lines: usize,
8445 max_line_number_width: Pixels,
8446 known_dimensions: Size<Option<Pixels>>,
8447 available_width: AvailableSpace,
8448 window: &mut Window,
8449 cx: &mut Context<Editor>,
8450) -> Option<Size<Pixels>> {
8451 let width = known_dimensions.width.or({
8452 if let AvailableSpace::Definite(available_width) = available_width {
8453 Some(available_width)
8454 } else {
8455 None
8456 }
8457 })?;
8458 if let Some(height) = known_dimensions.height {
8459 return Some(size(width, height));
8460 }
8461
8462 let style = editor.style.as_ref().unwrap();
8463 let font_id = window.text_system().resolve_font(&style.text.font());
8464 let font_size = style.text.font_size.to_pixels(window.rem_size());
8465 let line_height = style.text.line_height_in_pixels(window.rem_size());
8466 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8467
8468 let mut snapshot = editor.snapshot(window, cx);
8469 let gutter_dimensions = snapshot
8470 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8471 .unwrap_or_default();
8472
8473 editor.gutter_dimensions = gutter_dimensions;
8474 let text_width = width - gutter_dimensions.width;
8475 let overscroll = size(em_width, px(0.));
8476
8477 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8478 if editor.set_wrap_width(Some(editor_width), cx) {
8479 snapshot = editor.snapshot(window, cx);
8480 }
8481
8482 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
8483 let height = scroll_height
8484 .max(line_height)
8485 .min(line_height * max_lines as f32);
8486
8487 Some(size(width, height))
8488}
8489
8490#[cfg(test)]
8491mod tests {
8492 use super::*;
8493 use crate::{
8494 display_map::{BlockPlacement, BlockProperties},
8495 editor_tests::{init_test, update_test_language_settings},
8496 Editor, MultiBuffer,
8497 };
8498 use gpui::{TestAppContext, VisualTestContext};
8499 use language::language_settings;
8500 use log::info;
8501 use std::num::NonZeroU32;
8502 use util::test::sample_text;
8503
8504 #[gpui::test]
8505 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8506 init_test(cx, |_| {});
8507 let window = cx.add_window(|window, cx| {
8508 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8509 Editor::new(EditorMode::Full, buffer, None, window, cx)
8510 });
8511
8512 let editor = window.root(cx).unwrap();
8513 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8514 let line_height = window
8515 .update(cx, |_, window, _| {
8516 style.text.line_height_in_pixels(window.rem_size())
8517 })
8518 .unwrap();
8519 let element = EditorElement::new(&editor, style);
8520 let snapshot = window
8521 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8522 .unwrap();
8523
8524 let layouts = cx
8525 .update_window(*window, |_, window, cx| {
8526 element.layout_line_numbers(
8527 None,
8528 GutterDimensions {
8529 left_padding: Pixels::ZERO,
8530 right_padding: Pixels::ZERO,
8531 width: px(30.0),
8532 margin: Pixels::ZERO,
8533 git_blame_entries_width: None,
8534 },
8535 line_height,
8536 gpui::Point::default(),
8537 DisplayRow(0)..DisplayRow(6),
8538 &(0..6)
8539 .map(|row| RowInfo {
8540 buffer_row: Some(row),
8541 ..Default::default()
8542 })
8543 .collect::<Vec<_>>(),
8544 &BTreeMap::default(),
8545 Some(DisplayPoint::new(DisplayRow(0), 0)),
8546 &snapshot,
8547 window,
8548 cx,
8549 )
8550 })
8551 .unwrap();
8552 assert_eq!(layouts.len(), 6);
8553
8554 let relative_rows = window
8555 .update(cx, |editor, window, cx| {
8556 let snapshot = editor.snapshot(window, cx);
8557 element.calculate_relative_line_numbers(
8558 &snapshot,
8559 &(DisplayRow(0)..DisplayRow(6)),
8560 Some(DisplayRow(3)),
8561 )
8562 })
8563 .unwrap();
8564 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8565 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8566 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8567 // current line has no relative number
8568 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8569 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8570
8571 // works if cursor is before screen
8572 let relative_rows = window
8573 .update(cx, |editor, window, cx| {
8574 let snapshot = editor.snapshot(window, cx);
8575 element.calculate_relative_line_numbers(
8576 &snapshot,
8577 &(DisplayRow(3)..DisplayRow(6)),
8578 Some(DisplayRow(1)),
8579 )
8580 })
8581 .unwrap();
8582 assert_eq!(relative_rows.len(), 3);
8583 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8584 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8585 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8586
8587 // works if cursor is after screen
8588 let relative_rows = window
8589 .update(cx, |editor, window, cx| {
8590 let snapshot = editor.snapshot(window, cx);
8591 element.calculate_relative_line_numbers(
8592 &snapshot,
8593 &(DisplayRow(0)..DisplayRow(3)),
8594 Some(DisplayRow(6)),
8595 )
8596 })
8597 .unwrap();
8598 assert_eq!(relative_rows.len(), 3);
8599 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8600 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8601 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8602 }
8603
8604 #[gpui::test]
8605 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8606 init_test(cx, |_| {});
8607
8608 let window = cx.add_window(|window, cx| {
8609 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8610 Editor::new(EditorMode::Full, buffer, None, window, cx)
8611 });
8612 let cx = &mut VisualTestContext::from_window(*window, cx);
8613 let editor = window.root(cx).unwrap();
8614 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8615
8616 window
8617 .update(cx, |editor, window, cx| {
8618 editor.cursor_shape = CursorShape::Block;
8619 editor.change_selections(None, window, cx, |s| {
8620 s.select_ranges([
8621 Point::new(0, 0)..Point::new(1, 0),
8622 Point::new(3, 2)..Point::new(3, 3),
8623 Point::new(5, 6)..Point::new(6, 0),
8624 ]);
8625 });
8626 })
8627 .unwrap();
8628
8629 let (_, state) = cx.draw(
8630 point(px(500.), px(500.)),
8631 size(px(500.), px(500.)),
8632 |_, _| EditorElement::new(&editor, style),
8633 );
8634
8635 assert_eq!(state.selections.len(), 1);
8636 let local_selections = &state.selections[0].1;
8637 assert_eq!(local_selections.len(), 3);
8638 // moves cursor back one line
8639 assert_eq!(
8640 local_selections[0].head,
8641 DisplayPoint::new(DisplayRow(0), 6)
8642 );
8643 assert_eq!(
8644 local_selections[0].range,
8645 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8646 );
8647
8648 // moves cursor back one column
8649 assert_eq!(
8650 local_selections[1].range,
8651 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8652 );
8653 assert_eq!(
8654 local_selections[1].head,
8655 DisplayPoint::new(DisplayRow(3), 2)
8656 );
8657
8658 // leaves cursor on the max point
8659 assert_eq!(
8660 local_selections[2].range,
8661 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8662 );
8663 assert_eq!(
8664 local_selections[2].head,
8665 DisplayPoint::new(DisplayRow(6), 0)
8666 );
8667
8668 // active lines does not include 1 (even though the range of the selection does)
8669 assert_eq!(
8670 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8671 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8672 );
8673 }
8674
8675 #[gpui::test]
8676 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8677 init_test(cx, |_| {});
8678
8679 let window = cx.add_window(|window, cx| {
8680 let buffer = MultiBuffer::build_simple("", cx);
8681 Editor::new(EditorMode::Full, buffer, None, window, cx)
8682 });
8683 let cx = &mut VisualTestContext::from_window(*window, cx);
8684 let editor = window.root(cx).unwrap();
8685 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8686 window
8687 .update(cx, |editor, window, cx| {
8688 editor.set_placeholder_text("hello", cx);
8689 editor.insert_blocks(
8690 [BlockProperties {
8691 style: BlockStyle::Fixed,
8692 placement: BlockPlacement::Above(Anchor::min()),
8693 height: 3,
8694 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8695 priority: 0,
8696 }],
8697 None,
8698 cx,
8699 );
8700
8701 // Blur the editor so that it displays placeholder text.
8702 window.blur();
8703 })
8704 .unwrap();
8705
8706 let (_, state) = cx.draw(
8707 point(px(500.), px(500.)),
8708 size(px(500.), px(500.)),
8709 |_, _| EditorElement::new(&editor, style),
8710 );
8711 assert_eq!(state.position_map.line_layouts.len(), 4);
8712 assert_eq!(state.line_numbers.len(), 1);
8713 assert_eq!(
8714 state
8715 .line_numbers
8716 .get(&MultiBufferRow(0))
8717 .map(|line_number| line_number.shaped_line.text.as_ref()),
8718 Some("1")
8719 );
8720 }
8721
8722 #[gpui::test]
8723 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8724 const TAB_SIZE: u32 = 4;
8725
8726 let input_text = "\t \t|\t| a b";
8727 let expected_invisibles = vec![
8728 Invisible::Tab {
8729 line_start_offset: 0,
8730 line_end_offset: TAB_SIZE as usize,
8731 },
8732 Invisible::Whitespace {
8733 line_offset: TAB_SIZE as usize,
8734 },
8735 Invisible::Tab {
8736 line_start_offset: TAB_SIZE as usize + 1,
8737 line_end_offset: TAB_SIZE as usize * 2,
8738 },
8739 Invisible::Tab {
8740 line_start_offset: TAB_SIZE as usize * 2 + 1,
8741 line_end_offset: TAB_SIZE as usize * 3,
8742 },
8743 Invisible::Whitespace {
8744 line_offset: TAB_SIZE as usize * 3 + 1,
8745 },
8746 Invisible::Whitespace {
8747 line_offset: TAB_SIZE as usize * 3 + 3,
8748 },
8749 ];
8750 assert_eq!(
8751 expected_invisibles.len(),
8752 input_text
8753 .chars()
8754 .filter(|initial_char| initial_char.is_whitespace())
8755 .count(),
8756 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8757 );
8758
8759 for show_line_numbers in [true, false] {
8760 init_test(cx, |s| {
8761 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8762 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8763 });
8764
8765 let actual_invisibles = collect_invisibles_from_new_editor(
8766 cx,
8767 EditorMode::Full,
8768 input_text,
8769 px(500.0),
8770 show_line_numbers,
8771 );
8772
8773 assert_eq!(expected_invisibles, actual_invisibles);
8774 }
8775 }
8776
8777 #[gpui::test]
8778 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8779 init_test(cx, |s| {
8780 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8781 s.defaults.tab_size = NonZeroU32::new(4);
8782 });
8783
8784 for editor_mode_without_invisibles in [
8785 EditorMode::SingleLine { auto_width: false },
8786 EditorMode::AutoHeight { max_lines: 100 },
8787 ] {
8788 for show_line_numbers in [true, false] {
8789 let invisibles = collect_invisibles_from_new_editor(
8790 cx,
8791 editor_mode_without_invisibles,
8792 "\t\t\t| | a b",
8793 px(500.0),
8794 show_line_numbers,
8795 );
8796 assert!(invisibles.is_empty(),
8797 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8798 }
8799 }
8800 }
8801
8802 #[gpui::test]
8803 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8804 let tab_size = 4;
8805 let input_text = "a\tbcd ".repeat(9);
8806 let repeated_invisibles = [
8807 Invisible::Tab {
8808 line_start_offset: 1,
8809 line_end_offset: tab_size as usize,
8810 },
8811 Invisible::Whitespace {
8812 line_offset: tab_size as usize + 3,
8813 },
8814 Invisible::Whitespace {
8815 line_offset: tab_size as usize + 4,
8816 },
8817 Invisible::Whitespace {
8818 line_offset: tab_size as usize + 5,
8819 },
8820 Invisible::Whitespace {
8821 line_offset: tab_size as usize + 6,
8822 },
8823 Invisible::Whitespace {
8824 line_offset: tab_size as usize + 7,
8825 },
8826 ];
8827 let expected_invisibles = std::iter::once(repeated_invisibles)
8828 .cycle()
8829 .take(9)
8830 .flatten()
8831 .collect::<Vec<_>>();
8832 assert_eq!(
8833 expected_invisibles.len(),
8834 input_text
8835 .chars()
8836 .filter(|initial_char| initial_char.is_whitespace())
8837 .count(),
8838 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8839 );
8840 info!("Expected invisibles: {expected_invisibles:?}");
8841
8842 init_test(cx, |_| {});
8843
8844 // Put the same string with repeating whitespace pattern into editors of various size,
8845 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8846 let resize_step = 10.0;
8847 let mut editor_width = 200.0;
8848 while editor_width <= 1000.0 {
8849 for show_line_numbers in [true, false] {
8850 update_test_language_settings(cx, |s| {
8851 s.defaults.tab_size = NonZeroU32::new(tab_size);
8852 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8853 s.defaults.preferred_line_length = Some(editor_width as u32);
8854 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8855 });
8856
8857 let actual_invisibles = collect_invisibles_from_new_editor(
8858 cx,
8859 EditorMode::Full,
8860 &input_text,
8861 px(editor_width),
8862 show_line_numbers,
8863 );
8864
8865 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8866 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8867 let mut i = 0;
8868 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8869 i = actual_index;
8870 match expected_invisibles.get(i) {
8871 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8872 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8873 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8874 _ => {
8875 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8876 }
8877 },
8878 None => {
8879 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8880 }
8881 }
8882 }
8883 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8884 assert!(
8885 missing_expected_invisibles.is_empty(),
8886 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8887 );
8888
8889 editor_width += resize_step;
8890 }
8891 }
8892 }
8893
8894 fn collect_invisibles_from_new_editor(
8895 cx: &mut TestAppContext,
8896 editor_mode: EditorMode,
8897 input_text: &str,
8898 editor_width: Pixels,
8899 show_line_numbers: bool,
8900 ) -> Vec<Invisible> {
8901 info!(
8902 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8903 editor_width.0
8904 );
8905 let window = cx.add_window(|window, cx| {
8906 let buffer = MultiBuffer::build_simple(input_text, cx);
8907 Editor::new(editor_mode, buffer, None, window, cx)
8908 });
8909 let cx = &mut VisualTestContext::from_window(*window, cx);
8910 let editor = window.root(cx).unwrap();
8911
8912 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8913 window
8914 .update(cx, |editor, _, cx| {
8915 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8916 editor.set_wrap_width(Some(editor_width), cx);
8917 editor.set_show_line_numbers(show_line_numbers, cx);
8918 })
8919 .unwrap();
8920 let (_, state) = cx.draw(
8921 point(px(500.), px(500.)),
8922 size(px(500.), px(500.)),
8923 |_, _| EditorElement::new(&editor, style),
8924 );
8925 state
8926 .position_map
8927 .line_layouts
8928 .iter()
8929 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8930 .cloned()
8931 .collect()
8932 }
8933}