1use crate::{
2 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
3 commit_tooltip::{blame_entry_relative_timestamp, CommitTooltip, ParsedCommitMessage},
4 display_map::{
5 Block, BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint,
6 },
7 editor_settings::{
8 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ScrollBeyondLastLine,
9 ScrollbarDiagnostics, ShowScrollbar,
10 },
11 git::blame::GitBlame,
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 inlay_hint_settings,
16 items::BufferSearchHighlights,
17 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
18 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
19 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayDiffHunk, DisplayPoint,
20 DisplayRow, DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
21 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
22 GoToPreviousHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
23 InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight, LineUp,
24 OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase, SelectedTextHighlight,
25 Selection, SoftWrap, StickyHeaderExcerpt, ToPoint, ToggleFold, COLUMNAR_SELECTION_MODIFIERS,
26 CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN,
27 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
28};
29use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
30use client::ParticipantIndex;
31use collections::{BTreeMap, HashMap, HashSet};
32use file_icons::FileIcons;
33use git::{blame::BlameEntry, status::FileStatus, Oid};
34use gpui::{
35 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, pattern_slash,
36 point, px, quad, relative, size, solid_background, svg, transparent_black, Action, AnyElement,
37 App, AvailableSpace, Axis, Bounds, ClickEvent, ClipboardItem, ContentMask, Context, Corner,
38 Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
39 Focusable as _, FontId, GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement,
40 Keystroke, Length, ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent,
41 MouseUpEvent, PaintQuad, ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine,
42 SharedString, Size, StatefulInteractiveElement, Style, Styled, Subscription, TextRun,
43 TextStyleRefinement, Window,
44};
45use inline_completion::Direction;
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, MultiBufferPoint, MultiBufferRow,
57 RowInfo,
58};
59use project::project_settings::{self, GitGutterSetting, GitHunkStyleSetting, ProjectSettings};
60use settings::Settings;
61use smallvec::{smallvec, SmallVec};
62use std::{
63 any::TypeId,
64 borrow::Cow,
65 cmp::{self, Ordering},
66 fmt::{self, Write},
67 iter, mem,
68 ops::{Deref, Range},
69 rc::Rc,
70 sync::Arc,
71};
72use sum_tree::Bias;
73use text::BufferId;
74use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
75use ui::{
76 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
77 POPOVER_Y_PADDING,
78};
79use unicode_segmentation::UnicodeSegmentation;
80use util::{debug_panic, RangeExt, ResultExt};
81use workspace::{item::Item, notifications::NotifyTaskExt};
82
83const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
84const MIN_SCROLL_THUMB_SIZE: f32 = 25.;
85
86struct SelectionLayout {
87 head: DisplayPoint,
88 cursor_shape: CursorShape,
89 is_newest: bool,
90 is_local: bool,
91 range: Range<DisplayPoint>,
92 active_rows: Range<DisplayRow>,
93 user_name: Option<SharedString>,
94}
95
96impl SelectionLayout {
97 fn new<T: ToPoint + ToDisplayPoint + Clone>(
98 selection: Selection<T>,
99 line_mode: bool,
100 cursor_shape: CursorShape,
101 map: &DisplaySnapshot,
102 is_newest: bool,
103 is_local: bool,
104 user_name: Option<SharedString>,
105 ) -> Self {
106 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
107 let display_selection = point_selection.map(|p| p.to_display_point(map));
108 let mut range = display_selection.range();
109 let mut head = display_selection.head();
110 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
111 ..map.next_line_boundary(point_selection.end).1.row();
112
113 // vim visual line mode
114 if line_mode {
115 let point_range = map.expand_to_line(point_selection.range());
116 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
117 }
118
119 // any vim visual mode (including line mode)
120 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
121 && !range.is_empty()
122 && !selection.reversed
123 {
124 if head.column() > 0 {
125 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
126 } else if head.row().0 > 0 && head != map.max_point() {
127 head = map.clip_point(
128 DisplayPoint::new(
129 head.row().previous_row(),
130 map.line_len(head.row().previous_row()),
131 ),
132 Bias::Left,
133 );
134 // updating range.end is a no-op unless you're cursor is
135 // on the newline containing a multi-buffer divider
136 // in which case the clip_point may have moved the head up
137 // an additional row.
138 range.end = DisplayPoint::new(head.row().next_row(), 0);
139 active_rows.end = head.row();
140 }
141 }
142
143 Self {
144 head,
145 cursor_shape,
146 is_newest,
147 is_local,
148 range,
149 active_rows,
150 user_name,
151 }
152 }
153}
154
155pub struct EditorElement {
156 editor: Entity<Editor>,
157 style: EditorStyle,
158}
159
160type DisplayRowDelta = u32;
161
162impl EditorElement {
163 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
164
165 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
166 Self {
167 editor: editor.clone(),
168 style,
169 }
170 }
171
172 fn register_actions(&self, window: &mut Window, cx: &mut App) {
173 let editor = &self.editor;
174 editor.update(cx, |editor, cx| {
175 for action in editor.editor_actions.borrow().values() {
176 (action)(window, cx)
177 }
178 });
179
180 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
181 crate::clangd_ext::apply_related_actions(editor, window, cx);
182 register_action(editor, window, Editor::open_context_menu);
183 register_action(editor, window, Editor::move_left);
184 register_action(editor, window, Editor::move_right);
185 register_action(editor, window, Editor::move_down);
186 register_action(editor, window, Editor::move_down_by_lines);
187 register_action(editor, window, Editor::select_down_by_lines);
188 register_action(editor, window, Editor::move_up);
189 register_action(editor, window, Editor::move_up_by_lines);
190 register_action(editor, window, Editor::select_up_by_lines);
191 register_action(editor, window, Editor::select_page_down);
192 register_action(editor, window, Editor::select_page_up);
193 register_action(editor, window, Editor::cancel);
194 register_action(editor, window, Editor::newline);
195 register_action(editor, window, Editor::newline_above);
196 register_action(editor, window, Editor::newline_below);
197 register_action(editor, window, Editor::backspace);
198 register_action(editor, window, Editor::delete);
199 register_action(editor, window, Editor::tab);
200 register_action(editor, window, Editor::backtab);
201 register_action(editor, window, Editor::indent);
202 register_action(editor, window, Editor::outdent);
203 register_action(editor, window, Editor::autoindent);
204 register_action(editor, window, Editor::delete_line);
205 register_action(editor, window, Editor::join_lines);
206 register_action(editor, window, Editor::sort_lines_case_sensitive);
207 register_action(editor, window, Editor::sort_lines_case_insensitive);
208 register_action(editor, window, Editor::reverse_lines);
209 register_action(editor, window, Editor::shuffle_lines);
210 register_action(editor, window, Editor::convert_to_upper_case);
211 register_action(editor, window, Editor::convert_to_lower_case);
212 register_action(editor, window, Editor::convert_to_title_case);
213 register_action(editor, window, Editor::convert_to_snake_case);
214 register_action(editor, window, Editor::convert_to_kebab_case);
215 register_action(editor, window, Editor::convert_to_upper_camel_case);
216 register_action(editor, window, Editor::convert_to_lower_camel_case);
217 register_action(editor, window, Editor::convert_to_opposite_case);
218 register_action(editor, window, Editor::delete_to_previous_word_start);
219 register_action(editor, window, Editor::delete_to_previous_subword_start);
220 register_action(editor, window, Editor::delete_to_next_word_end);
221 register_action(editor, window, Editor::delete_to_next_subword_end);
222 register_action(editor, window, Editor::delete_to_beginning_of_line);
223 register_action(editor, window, Editor::delete_to_end_of_line);
224 register_action(editor, window, Editor::cut_to_end_of_line);
225 register_action(editor, window, Editor::duplicate_line_up);
226 register_action(editor, window, Editor::duplicate_line_down);
227 register_action(editor, window, Editor::duplicate_selection);
228 register_action(editor, window, Editor::move_line_up);
229 register_action(editor, window, Editor::move_line_down);
230 register_action(editor, window, Editor::transpose);
231 register_action(editor, window, Editor::rewrap);
232 register_action(editor, window, Editor::cut);
233 register_action(editor, window, Editor::kill_ring_cut);
234 register_action(editor, window, Editor::kill_ring_yank);
235 register_action(editor, window, Editor::copy);
236 register_action(editor, window, Editor::paste);
237 register_action(editor, window, Editor::undo);
238 register_action(editor, window, Editor::redo);
239 register_action(editor, window, Editor::move_page_up);
240 register_action(editor, window, Editor::move_page_down);
241 register_action(editor, window, Editor::next_screen);
242 register_action(editor, window, Editor::scroll_cursor_top);
243 register_action(editor, window, Editor::scroll_cursor_center);
244 register_action(editor, window, Editor::scroll_cursor_bottom);
245 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
246 register_action(editor, window, |editor, _: &LineDown, window, cx| {
247 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
248 });
249 register_action(editor, window, |editor, _: &LineUp, window, cx| {
250 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
251 });
252 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
253 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
254 });
255 register_action(
256 editor,
257 window,
258 |editor, HandleInput(text): &HandleInput, window, cx| {
259 if text.is_empty() {
260 return;
261 }
262 editor.handle_input(text, window, cx);
263 },
264 );
265 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
266 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
267 });
268 register_action(editor, window, |editor, _: &PageDown, window, cx| {
269 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
270 });
271 register_action(editor, window, |editor, _: &PageUp, window, cx| {
272 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
273 });
274 register_action(editor, window, Editor::move_to_previous_word_start);
275 register_action(editor, window, Editor::move_to_previous_subword_start);
276 register_action(editor, window, Editor::move_to_next_word_end);
277 register_action(editor, window, Editor::move_to_next_subword_end);
278 register_action(editor, window, Editor::move_to_beginning_of_line);
279 register_action(editor, window, Editor::move_to_end_of_line);
280 register_action(editor, window, Editor::move_to_start_of_paragraph);
281 register_action(editor, window, Editor::move_to_end_of_paragraph);
282 register_action(editor, window, Editor::move_to_beginning);
283 register_action(editor, window, Editor::move_to_end);
284 register_action(editor, window, Editor::move_to_start_of_excerpt);
285 register_action(editor, window, Editor::move_to_end_of_excerpt);
286 register_action(editor, window, Editor::select_up);
287 register_action(editor, window, Editor::select_down);
288 register_action(editor, window, Editor::select_left);
289 register_action(editor, window, Editor::select_right);
290 register_action(editor, window, Editor::select_to_previous_word_start);
291 register_action(editor, window, Editor::select_to_previous_subword_start);
292 register_action(editor, window, Editor::select_to_next_word_end);
293 register_action(editor, window, Editor::select_to_next_subword_end);
294 register_action(editor, window, Editor::select_to_beginning_of_line);
295 register_action(editor, window, Editor::select_to_end_of_line);
296 register_action(editor, window, Editor::select_to_start_of_paragraph);
297 register_action(editor, window, Editor::select_to_end_of_paragraph);
298 register_action(editor, window, Editor::select_to_start_of_excerpt);
299 register_action(editor, window, Editor::select_to_end_of_excerpt);
300 register_action(editor, window, Editor::select_to_beginning);
301 register_action(editor, window, Editor::select_to_end);
302 register_action(editor, window, Editor::select_all);
303 register_action(editor, window, |editor, action, window, cx| {
304 editor.select_all_matches(action, window, cx).log_err();
305 });
306 register_action(editor, window, Editor::select_line);
307 register_action(editor, window, Editor::split_selection_into_lines);
308 register_action(editor, window, Editor::add_selection_above);
309 register_action(editor, window, Editor::add_selection_below);
310 register_action(editor, window, |editor, action, window, cx| {
311 editor.select_next(action, window, cx).log_err();
312 });
313 register_action(editor, window, |editor, action, window, cx| {
314 editor.select_previous(action, window, cx).log_err();
315 });
316 register_action(editor, window, Editor::toggle_comments);
317 register_action(editor, window, Editor::select_larger_syntax_node);
318 register_action(editor, window, Editor::select_smaller_syntax_node);
319 register_action(editor, window, Editor::select_enclosing_symbol);
320 register_action(editor, window, Editor::move_to_enclosing_bracket);
321 register_action(editor, window, Editor::undo_selection);
322 register_action(editor, window, Editor::redo_selection);
323 if !editor.read(cx).is_singleton(cx) {
324 register_action(editor, window, Editor::expand_excerpts);
325 register_action(editor, window, Editor::expand_excerpts_up);
326 register_action(editor, window, Editor::expand_excerpts_down);
327 }
328 register_action(editor, window, Editor::go_to_diagnostic);
329 register_action(editor, window, Editor::go_to_prev_diagnostic);
330 register_action(editor, window, Editor::go_to_next_hunk);
331 register_action(editor, window, Editor::go_to_prev_hunk);
332 register_action(editor, window, |editor, action, window, cx| {
333 editor
334 .go_to_definition(action, window, cx)
335 .detach_and_log_err(cx);
336 });
337 register_action(editor, window, |editor, action, window, cx| {
338 editor
339 .go_to_definition_split(action, window, cx)
340 .detach_and_log_err(cx);
341 });
342 register_action(editor, window, |editor, action, window, cx| {
343 editor
344 .go_to_declaration(action, window, cx)
345 .detach_and_log_err(cx);
346 });
347 register_action(editor, window, |editor, action, window, cx| {
348 editor
349 .go_to_declaration_split(action, window, cx)
350 .detach_and_log_err(cx);
351 });
352 register_action(editor, window, |editor, action, window, cx| {
353 editor
354 .go_to_implementation(action, window, cx)
355 .detach_and_log_err(cx);
356 });
357 register_action(editor, window, |editor, action, window, cx| {
358 editor
359 .go_to_implementation_split(action, window, cx)
360 .detach_and_log_err(cx);
361 });
362 register_action(editor, window, |editor, action, window, cx| {
363 editor
364 .go_to_type_definition(action, window, cx)
365 .detach_and_log_err(cx);
366 });
367 register_action(editor, window, |editor, action, window, cx| {
368 editor
369 .go_to_type_definition_split(action, window, cx)
370 .detach_and_log_err(cx);
371 });
372 register_action(editor, window, Editor::open_url);
373 register_action(editor, window, Editor::open_selected_filename);
374 register_action(editor, window, Editor::fold);
375 register_action(editor, window, Editor::fold_at_level);
376 register_action(editor, window, Editor::fold_all);
377 register_action(editor, window, Editor::fold_function_bodies);
378 register_action(editor, window, Editor::fold_at);
379 register_action(editor, window, Editor::fold_recursive);
380 register_action(editor, window, Editor::toggle_fold);
381 register_action(editor, window, Editor::toggle_fold_recursive);
382 register_action(editor, window, Editor::unfold_lines);
383 register_action(editor, window, Editor::unfold_recursive);
384 register_action(editor, window, Editor::unfold_all);
385 register_action(editor, window, Editor::unfold_at);
386 register_action(editor, window, Editor::fold_selected_ranges);
387 register_action(editor, window, Editor::set_mark);
388 register_action(editor, window, Editor::swap_selection_ends);
389 register_action(editor, window, Editor::show_completions);
390 register_action(editor, window, Editor::toggle_code_actions);
391 register_action(editor, window, Editor::open_excerpts);
392 register_action(editor, window, Editor::open_excerpts_in_split);
393 register_action(editor, window, Editor::open_proposed_changes_editor);
394 register_action(editor, window, Editor::toggle_soft_wrap);
395 register_action(editor, window, Editor::toggle_tab_bar);
396 register_action(editor, window, Editor::toggle_line_numbers);
397 register_action(editor, window, Editor::toggle_relative_line_numbers);
398 register_action(editor, window, Editor::toggle_indent_guides);
399 register_action(editor, window, Editor::toggle_inlay_hints);
400 register_action(editor, window, Editor::toggle_edit_predictions);
401 register_action(editor, window, Editor::toggle_inline_diagnostics);
402 register_action(editor, window, hover_popover::hover);
403 register_action(editor, window, Editor::reveal_in_finder);
404 register_action(editor, window, Editor::copy_path);
405 register_action(editor, window, Editor::copy_relative_path);
406 register_action(editor, window, Editor::copy_file_name);
407 register_action(editor, window, Editor::copy_file_name_without_extension);
408 register_action(editor, window, Editor::copy_highlight_json);
409 register_action(editor, window, Editor::copy_permalink_to_line);
410 register_action(editor, window, Editor::open_permalink_to_line);
411 register_action(editor, window, Editor::copy_file_location);
412 register_action(editor, window, Editor::toggle_git_blame);
413 register_action(editor, window, Editor::toggle_git_blame_inline);
414 register_action(editor, window, Editor::toggle_selected_diff_hunks);
415 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
416 register_action(editor, window, Editor::stage_and_next);
417 register_action(editor, window, Editor::unstage_and_next);
418 register_action(editor, window, Editor::expand_all_diff_hunks);
419
420 register_action(editor, window, |editor, action, window, cx| {
421 if let Some(task) = editor.format(action, window, cx) {
422 task.detach_and_notify_err(window, cx);
423 } else {
424 cx.propagate();
425 }
426 });
427 register_action(editor, window, |editor, action, window, cx| {
428 if let Some(task) = editor.format_selections(action, window, cx) {
429 task.detach_and_notify_err(window, cx);
430 } else {
431 cx.propagate();
432 }
433 });
434 register_action(editor, window, |editor, action, window, cx| {
435 if let Some(task) = editor.organize_imports(action, window, cx) {
436 task.detach_and_notify_err(window, cx);
437 } else {
438 cx.propagate();
439 }
440 });
441 register_action(editor, window, Editor::restart_language_server);
442 register_action(editor, window, Editor::show_character_palette);
443 register_action(editor, window, |editor, action, window, cx| {
444 if let Some(task) = editor.confirm_completion(action, window, cx) {
445 task.detach_and_notify_err(window, cx);
446 } else {
447 cx.propagate();
448 }
449 });
450 register_action(editor, window, |editor, action, window, cx| {
451 if let Some(task) = editor.compose_completion(action, window, cx) {
452 task.detach_and_notify_err(window, cx);
453 } else {
454 cx.propagate();
455 }
456 });
457 register_action(editor, window, |editor, action, window, cx| {
458 if let Some(task) = editor.confirm_code_action(action, window, cx) {
459 task.detach_and_notify_err(window, cx);
460 } else {
461 cx.propagate();
462 }
463 });
464 register_action(editor, window, |editor, action, window, cx| {
465 if let Some(task) = editor.rename(action, window, cx) {
466 task.detach_and_notify_err(window, cx);
467 } else {
468 cx.propagate();
469 }
470 });
471 register_action(editor, window, |editor, action, window, cx| {
472 if let Some(task) = editor.confirm_rename(action, window, cx) {
473 task.detach_and_notify_err(window, cx);
474 } else {
475 cx.propagate();
476 }
477 });
478 register_action(editor, window, |editor, action, window, cx| {
479 if let Some(task) = editor.find_all_references(action, window, cx) {
480 task.detach_and_log_err(cx);
481 } else {
482 cx.propagate();
483 }
484 });
485 register_action(editor, window, Editor::show_signature_help);
486 register_action(editor, window, Editor::next_edit_prediction);
487 register_action(editor, window, Editor::previous_edit_prediction);
488 register_action(editor, window, Editor::show_inline_completion);
489 register_action(editor, window, Editor::context_menu_first);
490 register_action(editor, window, Editor::context_menu_prev);
491 register_action(editor, window, Editor::context_menu_next);
492 register_action(editor, window, Editor::context_menu_last);
493 register_action(editor, window, Editor::display_cursor_names);
494 register_action(editor, window, Editor::unique_lines_case_insensitive);
495 register_action(editor, window, Editor::unique_lines_case_sensitive);
496 register_action(editor, window, Editor::accept_partial_inline_completion);
497 register_action(editor, window, Editor::accept_edit_prediction);
498 register_action(editor, window, Editor::restore_file);
499 register_action(editor, window, Editor::git_restore);
500 register_action(editor, window, Editor::apply_all_diff_hunks);
501 register_action(editor, window, Editor::apply_selected_diff_hunks);
502 register_action(editor, window, Editor::open_active_item_in_terminal);
503 register_action(editor, window, Editor::reload_file);
504 register_action(editor, window, Editor::spawn_nearest_task);
505 register_action(editor, window, Editor::insert_uuid_v4);
506 register_action(editor, window, Editor::insert_uuid_v7);
507 register_action(editor, window, Editor::open_selections_in_multibuffer);
508 }
509
510 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
511 let position_map = layout.position_map.clone();
512 window.on_key_event({
513 let editor = self.editor.clone();
514 move |event: &ModifiersChangedEvent, phase, window, cx| {
515 if phase != DispatchPhase::Bubble {
516 return;
517 }
518 editor.update(cx, |editor, cx| {
519 let inlay_hint_settings = inlay_hint_settings(
520 editor.selections.newest_anchor().head(),
521 &editor.buffer.read(cx).snapshot(cx),
522 cx,
523 );
524
525 if let Some(inlay_modifiers) = inlay_hint_settings
526 .toggle_on_modifiers_press
527 .as_ref()
528 .filter(|modifiers| modifiers.modified())
529 {
530 editor.refresh_inlay_hints(
531 InlayHintRefreshReason::ModifiersChanged(
532 inlay_modifiers == &event.modifiers,
533 ),
534 cx,
535 );
536 }
537
538 if editor.hover_state.focused(window, cx) {
539 return;
540 }
541
542 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
543 })
544 }
545 });
546 }
547
548 fn mouse_left_down(
549 editor: &mut Editor,
550 event: &MouseDownEvent,
551 hovered_hunk: Option<Range<Anchor>>,
552 position_map: &PositionMap,
553 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
554 window: &mut Window,
555 cx: &mut Context<Editor>,
556 ) {
557 if window.default_prevented() {
558 return;
559 }
560
561 let text_hitbox = &position_map.text_hitbox;
562 let gutter_hitbox = &position_map.gutter_hitbox;
563 let mut click_count = event.click_count;
564 let mut modifiers = event.modifiers;
565
566 if let Some(hovered_hunk) = hovered_hunk {
567 editor.toggle_single_diff_hunk(hovered_hunk, cx);
568 cx.notify();
569 return;
570 } else if gutter_hitbox.is_hovered(window) {
571 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
572 } else if !text_hitbox.is_hovered(window) {
573 return;
574 }
575
576 let is_singleton = editor.buffer().read(cx).is_singleton();
577
578 if click_count == 2 && !is_singleton {
579 match EditorSettings::get_global(cx).double_click_in_multibuffer {
580 DoubleClickInMultibuffer::Select => {
581 // do nothing special on double click, all selection logic is below
582 }
583 DoubleClickInMultibuffer::Open => {
584 if modifiers.alt {
585 // if double click is made with alt, pretend it's a regular double click without opening and alt,
586 // and run the selection logic.
587 modifiers.alt = false;
588 } else {
589 let scroll_position_row =
590 position_map.scroll_pixel_position.y / position_map.line_height;
591 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
592 + position_map.scroll_pixel_position.y)
593 / position_map.line_height)
594 as u32;
595 let multi_buffer_row = position_map
596 .snapshot
597 .display_point_to_point(
598 DisplayPoint::new(DisplayRow(display_row), 0),
599 Bias::Right,
600 )
601 .row;
602 let line_offset_from_top = display_row - scroll_position_row as u32;
603 // if double click is made without alt, open the corresponding excerp
604 editor.open_excerpts_common(
605 Some(JumpData::MultiBufferRow {
606 row: MultiBufferRow(multi_buffer_row),
607 line_offset_from_top,
608 }),
609 false,
610 window,
611 cx,
612 );
613 return;
614 }
615 }
616 }
617 }
618
619 let point_for_position = position_map.point_for_position(event.position);
620 let position = point_for_position.previous_valid;
621 if modifiers == COLUMNAR_SELECTION_MODIFIERS {
622 editor.select(
623 SelectPhase::BeginColumnar {
624 position,
625 reset: false,
626 goal_column: point_for_position.exact_unclipped.column(),
627 },
628 window,
629 cx,
630 );
631 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
632 {
633 editor.select(
634 SelectPhase::Extend {
635 position,
636 click_count,
637 },
638 window,
639 cx,
640 );
641 } else {
642 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
643 let multi_cursor_modifier = match multi_cursor_setting {
644 MultiCursorModifier::Alt => modifiers.alt,
645 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
646 };
647 editor.select(
648 SelectPhase::Begin {
649 position,
650 add: multi_cursor_modifier,
651 click_count,
652 },
653 window,
654 cx,
655 );
656 }
657 cx.stop_propagation();
658
659 if !is_singleton {
660 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
661 + position_map.scroll_pixel_position.y)
662 / position_map.line_height) as u32;
663 let multi_buffer_row = position_map
664 .snapshot
665 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
666 .row;
667 if line_numbers
668 .get(&MultiBufferRow(multi_buffer_row))
669 .and_then(|line_number| line_number.hitbox.as_ref())
670 .is_some_and(|hitbox| hitbox.contains(&event.position))
671 {
672 let scroll_position_row =
673 position_map.scroll_pixel_position.y / position_map.line_height;
674 let line_offset_from_top = display_row - scroll_position_row as u32;
675
676 editor.open_excerpts_common(
677 Some(JumpData::MultiBufferRow {
678 row: MultiBufferRow(multi_buffer_row),
679 line_offset_from_top,
680 }),
681 modifiers.alt,
682 window,
683 cx,
684 );
685 cx.stop_propagation();
686 }
687 }
688 }
689
690 fn mouse_right_down(
691 editor: &mut Editor,
692 event: &MouseDownEvent,
693 position_map: &PositionMap,
694 window: &mut Window,
695 cx: &mut Context<Editor>,
696 ) {
697 if !position_map.text_hitbox.is_hovered(window) {
698 return;
699 }
700 let point_for_position = position_map.point_for_position(event.position);
701 mouse_context_menu::deploy_context_menu(
702 editor,
703 Some(event.position),
704 point_for_position.previous_valid,
705 window,
706 cx,
707 );
708 cx.stop_propagation();
709 }
710
711 fn mouse_middle_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.text_hitbox.is_hovered(window) || window.default_prevented() {
719 return;
720 }
721
722 let point_for_position = position_map.point_for_position(event.position);
723 let position = point_for_position.previous_valid;
724
725 editor.select(
726 SelectPhase::BeginColumnar {
727 position,
728 reset: true,
729 goal_column: point_for_position.exact_unclipped.column(),
730 },
731 window,
732 cx,
733 );
734 }
735
736 fn mouse_up(
737 editor: &mut Editor,
738 event: &MouseUpEvent,
739 position_map: &PositionMap,
740 window: &mut Window,
741 cx: &mut Context<Editor>,
742 ) {
743 let text_hitbox = &position_map.text_hitbox;
744 let end_selection = editor.has_pending_selection();
745 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
746
747 if end_selection {
748 editor.select(SelectPhase::End, window, cx);
749 }
750
751 if end_selection && pending_nonempty_selections {
752 cx.stop_propagation();
753 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
754 && event.button == MouseButton::Middle
755 {
756 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
757 return;
758 }
759
760 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
761 if EditorSettings::get_global(cx).middle_click_paste {
762 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
763 let point_for_position = position_map.point_for_position(event.position);
764 let position = point_for_position.previous_valid;
765
766 editor.select(
767 SelectPhase::Begin {
768 position,
769 add: false,
770 click_count: 1,
771 },
772 window,
773 cx,
774 );
775 editor.insert(&text, window, cx);
776 }
777 cx.stop_propagation()
778 }
779 }
780 }
781
782 fn click(
783 editor: &mut Editor,
784 event: &ClickEvent,
785 position_map: &PositionMap,
786 window: &mut Window,
787 cx: &mut Context<Editor>,
788 ) {
789 let text_hitbox = &position_map.text_hitbox;
790 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
791
792 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
793 let multi_cursor_modifier = match multi_cursor_setting {
794 MultiCursorModifier::Alt => event.modifiers().secondary(),
795 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
796 };
797
798 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
799 let point = position_map.point_for_position(event.up.position);
800 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
801
802 cx.stop_propagation();
803 }
804 }
805
806 fn mouse_dragged(
807 editor: &mut Editor,
808 event: &MouseMoveEvent,
809 position_map: &PositionMap,
810 window: &mut Window,
811 cx: &mut Context<Editor>,
812 ) {
813 if !editor.has_pending_selection() {
814 return;
815 }
816
817 let text_bounds = position_map.text_hitbox.bounds;
818 let point_for_position = position_map.point_for_position(event.position);
819 let mut scroll_delta = gpui::Point::<f32>::default();
820 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
821 let top = text_bounds.origin.y + vertical_margin;
822 let bottom = text_bounds.bottom_left().y - vertical_margin;
823 if event.position.y < top {
824 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
825 }
826 if event.position.y > bottom {
827 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
828 }
829
830 // We need horizontal width of text
831 let style = editor.style.clone().unwrap_or_default();
832 let font_id = window.text_system().resolve_font(&style.text.font());
833 let font_size = style.text.font_size.to_pixels(window.rem_size());
834 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
835
836 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
837
838 let scroll_space: Pixels = scroll_margin_x * em_width;
839
840 let left = text_bounds.origin.x + scroll_space;
841 let right = text_bounds.top_right().x - scroll_space;
842
843 if event.position.x < left {
844 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
845 }
846 if event.position.x > right {
847 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
848 }
849
850 editor.select(
851 SelectPhase::Update {
852 position: point_for_position.previous_valid,
853 goal_column: point_for_position.exact_unclipped.column(),
854 scroll_delta,
855 },
856 window,
857 cx,
858 );
859 }
860
861 fn mouse_moved(
862 editor: &mut Editor,
863 event: &MouseMoveEvent,
864 position_map: &PositionMap,
865 window: &mut Window,
866 cx: &mut Context<Editor>,
867 ) {
868 let text_hitbox = &position_map.text_hitbox;
869 let gutter_hitbox = &position_map.gutter_hitbox;
870 let modifiers = event.modifiers;
871 let gutter_hovered = gutter_hitbox.is_hovered(window);
872 editor.set_gutter_hovered(gutter_hovered, cx);
873
874 // Don't trigger hover popover if mouse is hovering over context menu
875 if text_hitbox.is_hovered(window) {
876 let point_for_position = position_map.point_for_position(event.position);
877
878 editor.update_hovered_link(
879 point_for_position,
880 &position_map.snapshot,
881 modifiers,
882 window,
883 cx,
884 );
885
886 if let Some(point) = point_for_position.as_valid() {
887 let anchor = position_map
888 .snapshot
889 .buffer_snapshot
890 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
891 hover_at(editor, Some(anchor), window, cx);
892 Self::update_visible_cursor(editor, point, position_map, window, cx);
893 } else {
894 hover_at(editor, None, window, cx);
895 }
896 } else {
897 editor.hide_hovered_link(cx);
898 hover_at(editor, None, window, cx);
899 if gutter_hovered {
900 cx.stop_propagation();
901 }
902 }
903 }
904
905 fn update_visible_cursor(
906 editor: &mut Editor,
907 point: DisplayPoint,
908 position_map: &PositionMap,
909 window: &mut Window,
910 cx: &mut Context<Editor>,
911 ) {
912 let snapshot = &position_map.snapshot;
913 let Some(hub) = editor.collaboration_hub() else {
914 return;
915 };
916 let start = snapshot.display_snapshot.clip_point(
917 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
918 Bias::Left,
919 );
920 let end = snapshot.display_snapshot.clip_point(
921 DisplayPoint::new(
922 point.row(),
923 (point.column() + 1).min(snapshot.line_len(point.row())),
924 ),
925 Bias::Right,
926 );
927
928 let range = snapshot
929 .buffer_snapshot
930 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
931 ..snapshot
932 .buffer_snapshot
933 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
934
935 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
936 return;
937 };
938 let key = crate::HoveredCursor {
939 replica_id: selection.replica_id,
940 selection_id: selection.selection.id,
941 };
942 editor.hovered_cursors.insert(
943 key.clone(),
944 cx.spawn_in(window, |editor, mut cx| async move {
945 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
946 editor
947 .update(&mut cx, |editor, cx| {
948 editor.hovered_cursors.remove(&key);
949 cx.notify();
950 })
951 .ok();
952 }),
953 );
954 cx.notify()
955 }
956
957 #[allow(clippy::too_many_arguments)]
958 fn layout_selections(
959 &self,
960 start_anchor: Anchor,
961 end_anchor: Anchor,
962 local_selections: &[Selection<Point>],
963 snapshot: &EditorSnapshot,
964 start_row: DisplayRow,
965 end_row: DisplayRow,
966 window: &mut Window,
967 cx: &mut App,
968 ) -> (
969 Vec<(PlayerColor, Vec<SelectionLayout>)>,
970 BTreeMap<DisplayRow, bool>,
971 Option<DisplayPoint>,
972 ) {
973 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
974 let mut active_rows = BTreeMap::new();
975 let mut newest_selection_head = None;
976 self.editor.update(cx, |editor, cx| {
977 if editor.show_local_selections {
978 let mut layouts = Vec::new();
979 let newest = editor.selections.newest(cx);
980 for selection in local_selections.iter().cloned() {
981 let is_empty = selection.start == selection.end;
982 let is_newest = selection == newest;
983
984 let layout = SelectionLayout::new(
985 selection,
986 editor.selections.line_mode,
987 editor.cursor_shape,
988 &snapshot.display_snapshot,
989 is_newest,
990 editor.leader_peer_id.is_none(),
991 None,
992 );
993 if is_newest {
994 newest_selection_head = Some(layout.head);
995 }
996
997 for row in cmp::max(layout.active_rows.start.0, start_row.0)
998 ..=cmp::min(layout.active_rows.end.0, end_row.0)
999 {
1000 let contains_non_empty_selection =
1001 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
1002 *contains_non_empty_selection |= !is_empty;
1003 }
1004 layouts.push(layout);
1005 }
1006
1007 let player = editor.current_user_player_color(cx);
1008 selections.push((player, layouts));
1009 }
1010
1011 if let Some(collaboration_hub) = &editor.collaboration_hub {
1012 // When following someone, render the local selections in their color.
1013 if let Some(leader_id) = editor.leader_peer_id {
1014 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1015 {
1016 if let Some(participant_index) = collaboration_hub
1017 .user_participant_indices(cx)
1018 .get(&collaborator.user_id)
1019 {
1020 if let Some((local_selection_style, _)) = selections.first_mut() {
1021 *local_selection_style = cx
1022 .theme()
1023 .players()
1024 .color_for_participant(participant_index.0);
1025 }
1026 }
1027 }
1028 }
1029
1030 let mut remote_selections = HashMap::default();
1031 for selection in snapshot.remote_selections_in_range(
1032 &(start_anchor..end_anchor),
1033 collaboration_hub.as_ref(),
1034 cx,
1035 ) {
1036 let selection_style =
1037 Self::get_participant_color(selection.participant_index, cx);
1038
1039 // Don't re-render the leader's selections, since the local selections
1040 // match theirs.
1041 if Some(selection.peer_id) == editor.leader_peer_id {
1042 continue;
1043 }
1044 let key = HoveredCursor {
1045 replica_id: selection.replica_id,
1046 selection_id: selection.selection.id,
1047 };
1048
1049 let is_shown =
1050 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1051
1052 remote_selections
1053 .entry(selection.replica_id)
1054 .or_insert((selection_style, Vec::new()))
1055 .1
1056 .push(SelectionLayout::new(
1057 selection.selection,
1058 selection.line_mode,
1059 selection.cursor_shape,
1060 &snapshot.display_snapshot,
1061 false,
1062 false,
1063 if is_shown { selection.user_name } else { None },
1064 ));
1065 }
1066
1067 selections.extend(remote_selections.into_values());
1068 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1069 let layouts = snapshot
1070 .buffer_snapshot
1071 .selections_in_range(&(start_anchor..end_anchor), true)
1072 .map(move |(_, line_mode, cursor_shape, selection)| {
1073 SelectionLayout::new(
1074 selection,
1075 line_mode,
1076 cursor_shape,
1077 &snapshot.display_snapshot,
1078 false,
1079 false,
1080 None,
1081 )
1082 })
1083 .collect::<Vec<_>>();
1084 let player = editor.current_user_player_color(cx);
1085 selections.push((player, layouts));
1086 }
1087 });
1088 (selections, active_rows, newest_selection_head)
1089 }
1090
1091 fn collect_cursors(
1092 &self,
1093 snapshot: &EditorSnapshot,
1094 cx: &mut App,
1095 ) -> Vec<(DisplayPoint, Hsla)> {
1096 let editor = self.editor.read(cx);
1097 let mut cursors = Vec::new();
1098 let mut skip_local = false;
1099 let mut add_cursor = |anchor: Anchor, color| {
1100 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1101 };
1102 // Remote cursors
1103 if let Some(collaboration_hub) = &editor.collaboration_hub {
1104 for remote_selection in snapshot.remote_selections_in_range(
1105 &(Anchor::min()..Anchor::max()),
1106 collaboration_hub.deref(),
1107 cx,
1108 ) {
1109 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1110 add_cursor(remote_selection.selection.head(), color.cursor);
1111 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1112 skip_local = true;
1113 }
1114 }
1115 }
1116 // Local cursors
1117 if !skip_local {
1118 let color = cx.theme().players().local().cursor;
1119 editor.selections.disjoint.iter().for_each(|selection| {
1120 add_cursor(selection.head(), color);
1121 });
1122 if let Some(ref selection) = editor.selections.pending_anchor() {
1123 add_cursor(selection.head(), color);
1124 }
1125 }
1126 cursors
1127 }
1128
1129 #[allow(clippy::too_many_arguments)]
1130 fn layout_visible_cursors(
1131 &self,
1132 snapshot: &EditorSnapshot,
1133 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1134 block_start_rows: &HashSet<DisplayRow>,
1135 visible_display_row_range: Range<DisplayRow>,
1136 line_layouts: &[LineWithInvisibles],
1137 text_hitbox: &Hitbox,
1138 content_origin: gpui::Point<Pixels>,
1139 scroll_position: gpui::Point<f32>,
1140 scroll_pixel_position: gpui::Point<Pixels>,
1141 line_height: Pixels,
1142 em_width: Pixels,
1143 em_advance: Pixels,
1144 autoscroll_containing_element: bool,
1145 window: &mut Window,
1146 cx: &mut App,
1147 ) -> Vec<CursorLayout> {
1148 let mut autoscroll_bounds = None;
1149 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1150 let mut cursors = Vec::new();
1151
1152 let show_local_cursors = editor.show_local_cursors(window, cx);
1153
1154 for (player_color, selections) in selections {
1155 for selection in selections {
1156 let cursor_position = selection.head;
1157
1158 let in_range = visible_display_row_range.contains(&cursor_position.row());
1159 if (selection.is_local && !show_local_cursors)
1160 || !in_range
1161 || block_start_rows.contains(&cursor_position.row())
1162 {
1163 continue;
1164 }
1165
1166 let cursor_row_layout = &line_layouts
1167 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1168 let cursor_column = cursor_position.column() as usize;
1169
1170 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1171 let mut block_width =
1172 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1173 if block_width == Pixels::ZERO {
1174 block_width = em_advance;
1175 }
1176 let block_text = if let CursorShape::Block = selection.cursor_shape {
1177 snapshot
1178 .grapheme_at(cursor_position)
1179 .or_else(|| {
1180 if cursor_column == 0 {
1181 snapshot.placeholder_text().and_then(|s| {
1182 s.graphemes(true).next().map(|s| s.to_string().into())
1183 })
1184 } else {
1185 None
1186 }
1187 })
1188 .and_then(|text| {
1189 let len = text.len();
1190
1191 let font = cursor_row_layout
1192 .font_id_for_index(cursor_column)
1193 .and_then(|cursor_font_id| {
1194 window.text_system().get_font_for_id(cursor_font_id)
1195 })
1196 .unwrap_or(self.style.text.font());
1197
1198 // Invert the text color for the block cursor. Ensure that the text
1199 // color is opaque enough to be visible against the background color.
1200 //
1201 // 0.75 is an arbitrary threshold to determine if the background color is
1202 // opaque enough to use as a text color.
1203 //
1204 // TODO: In the future we should ensure themes have a `text_inverse` color.
1205 let color = if cx.theme().colors().editor_background.a < 0.75 {
1206 match cx.theme().appearance {
1207 Appearance::Dark => Hsla::black(),
1208 Appearance::Light => Hsla::white(),
1209 }
1210 } else {
1211 cx.theme().colors().editor_background
1212 };
1213
1214 window
1215 .text_system()
1216 .shape_line(
1217 text,
1218 cursor_row_layout.font_size,
1219 &[TextRun {
1220 len,
1221 font,
1222 color,
1223 background_color: None,
1224 strikethrough: None,
1225 underline: None,
1226 }],
1227 )
1228 .log_err()
1229 })
1230 } else {
1231 None
1232 };
1233
1234 let x = cursor_character_x - scroll_pixel_position.x;
1235 let y = (cursor_position.row().as_f32()
1236 - scroll_pixel_position.y / line_height)
1237 * line_height;
1238 if selection.is_newest {
1239 editor.pixel_position_of_newest_cursor = Some(point(
1240 text_hitbox.origin.x + x + block_width / 2.,
1241 text_hitbox.origin.y + y + line_height / 2.,
1242 ));
1243
1244 if autoscroll_containing_element {
1245 let top = text_hitbox.origin.y
1246 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1247 * line_height;
1248 let left = text_hitbox.origin.x
1249 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1250 .max(0.)
1251 * em_width;
1252
1253 let bottom = text_hitbox.origin.y
1254 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1255 * line_height;
1256 let right = text_hitbox.origin.x
1257 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1258 * em_width;
1259
1260 autoscroll_bounds =
1261 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1262 }
1263 }
1264
1265 let mut cursor = CursorLayout {
1266 color: player_color.cursor,
1267 block_width,
1268 origin: point(x, y),
1269 line_height,
1270 shape: selection.cursor_shape,
1271 block_text,
1272 cursor_name: None,
1273 };
1274 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1275 string: name,
1276 color: self.style.background,
1277 is_top_row: cursor_position.row().0 == 0,
1278 });
1279 cursor.layout(content_origin, cursor_name, window, cx);
1280 cursors.push(cursor);
1281 }
1282 }
1283
1284 cursors
1285 });
1286
1287 if let Some(bounds) = autoscroll_bounds {
1288 window.request_autoscroll(bounds);
1289 }
1290
1291 cursor_layouts
1292 }
1293
1294 fn layout_scrollbars(
1295 &self,
1296 snapshot: &EditorSnapshot,
1297 scrollbar_range_data: ScrollbarRangeData,
1298 scroll_position: gpui::Point<f32>,
1299 non_visible_cursors: bool,
1300 window: &mut Window,
1301 cx: &mut App,
1302 ) -> AxisPair<Option<ScrollbarLayout>> {
1303 let letter_size = scrollbar_range_data.letter_size;
1304 let text_units_per_page = axis_pair(
1305 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1306 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1307 );
1308
1309 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1310 let show_scrollbars = self.editor.read(cx).show_scrollbars
1311 && match scrollbar_settings.show {
1312 ShowScrollbar::Auto => {
1313 let editor = self.editor.read(cx);
1314 let is_singleton = editor.is_singleton(cx);
1315 // Git
1316 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1317 ||
1318 // Buffer Search Results
1319 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1320 ||
1321 // Selected Text Occurrences
1322 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1323 ||
1324 // Selected Symbol Occurrences
1325 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1326 ||
1327 // Diagnostics
1328 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1329 ||
1330 // Cursors out of sight
1331 non_visible_cursors
1332 ||
1333 // Scrollmanager
1334 editor.scroll_manager.scrollbars_visible()
1335 }
1336 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1337 ShowScrollbar::Always => true,
1338 ShowScrollbar::Never => false,
1339 };
1340
1341 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1342
1343 if snapshot.mode != EditorMode::Full {
1344 return axis_pair(None, None);
1345 }
1346
1347 let visible_range = axis_pair(
1348 axes.horizontal
1349 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1350 axes.vertical
1351 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1352 );
1353
1354 // If a drag took place after we started dragging the scrollbar,
1355 // cancel the scrollbar drag.
1356 if cx.has_active_drag() {
1357 self.editor.update(cx, |editor, cx| {
1358 editor
1359 .scroll_manager
1360 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1361 editor
1362 .scroll_manager
1363 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1364 });
1365 }
1366
1367 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1368
1369 let track_bounds = axis_pair(
1370 axes.horizontal.then(|| {
1371 Bounds::from_corners(
1372 point(
1373 text_bounds.bottom_left().x,
1374 text_bounds.bottom_left().y - self.style.scrollbar_width,
1375 ),
1376 point(
1377 text_bounds.bottom_right().x
1378 - if axes.vertical {
1379 self.style.scrollbar_width
1380 } else {
1381 px(0.)
1382 },
1383 text_bounds.bottom_right().y,
1384 ),
1385 )
1386 }),
1387 axes.vertical.then(|| {
1388 Bounds::from_corners(
1389 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1390 text_bounds.bottom_right(),
1391 )
1392 }),
1393 );
1394
1395 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1396 let total_text_units = axis_pair(
1397 Some(scroll_range_size.width / letter_size.width),
1398 Some(scroll_range_size.height / letter_size.height),
1399 );
1400
1401 let thumb_size = axis_pair(
1402 total_text_units
1403 .horizontal
1404 .zip(track_bounds.horizontal)
1405 .and_then(|(total_text_units_x, track_bounds_x)| {
1406 if text_units_per_page.horizontal >= total_text_units_x {
1407 return None;
1408 }
1409 if track_bounds_x.size.width < px(MIN_SCROLL_THUMB_SIZE) {
1410 return Some(track_bounds_x.size.width);
1411 }
1412 let thumb_size = track_bounds_x.size.width
1413 * (text_units_per_page.horizontal / total_text_units_x);
1414 Some(thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_x.size.width))
1415 }),
1416 total_text_units.vertical.zip(track_bounds.vertical).map(
1417 |(total_text_units_y, track_bounds_y)| {
1418 if track_bounds_y.size.height < px(MIN_SCROLL_THUMB_SIZE) {
1419 return track_bounds_y.size.height;
1420 }
1421 let thumb_size = track_bounds_y.size.height
1422 * (text_units_per_page.vertical / total_text_units_y);
1423 thumb_size.clamp(px(MIN_SCROLL_THUMB_SIZE), track_bounds_y.size.height)
1424 },
1425 ),
1426 );
1427
1428 // NOTE: Space not taken by track bounds divided by text units not on screen
1429 let text_unit_size = axis_pair(
1430 thumb_size
1431 .horizontal
1432 .zip(track_bounds.horizontal)
1433 .zip(total_text_units.horizontal)
1434 .map(|((thumb_size, track_bounds), total_text_units)| {
1435 (track_bounds.size.width - thumb_size)
1436 / (total_text_units - text_units_per_page.horizontal).max(0.)
1437 }),
1438 thumb_size
1439 .vertical
1440 .zip(track_bounds.vertical)
1441 .zip(total_text_units.vertical)
1442 .map(|((thumb_size, track_bounds), total_text_units)| {
1443 (track_bounds.size.height - thumb_size)
1444 / (total_text_units - text_units_per_page.vertical).max(0.)
1445 }),
1446 );
1447
1448 let horizontal_scrollbar = track_bounds
1449 .horizontal
1450 .zip(visible_range.horizontal)
1451 .zip(text_unit_size.horizontal)
1452 .zip(thumb_size.horizontal)
1453 .map(
1454 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1455 hitbox: window.insert_hitbox(track_bounds, false),
1456 visible_range,
1457 text_unit_size,
1458 visible: show_scrollbars,
1459 thumb_size,
1460 axis: Axis::Horizontal,
1461 },
1462 );
1463
1464 let vertical_scrollbar = track_bounds
1465 .vertical
1466 .zip(visible_range.vertical)
1467 .zip(text_unit_size.vertical)
1468 .zip(thumb_size.vertical)
1469 .map(
1470 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1471 hitbox: window.insert_hitbox(track_bounds, false),
1472 visible_range,
1473 text_unit_size,
1474 visible: show_scrollbars,
1475 thumb_size,
1476 axis: Axis::Vertical,
1477 },
1478 );
1479
1480 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1481 }
1482
1483 #[allow(clippy::too_many_arguments)]
1484 fn prepaint_crease_toggles(
1485 &self,
1486 crease_toggles: &mut [Option<AnyElement>],
1487 line_height: Pixels,
1488 gutter_dimensions: &GutterDimensions,
1489 gutter_settings: crate::editor_settings::Gutter,
1490 scroll_pixel_position: gpui::Point<Pixels>,
1491 gutter_hitbox: &Hitbox,
1492 window: &mut Window,
1493 cx: &mut App,
1494 ) {
1495 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1496 if let Some(crease_toggle) = crease_toggle {
1497 debug_assert!(gutter_settings.folds);
1498 let available_space = size(
1499 AvailableSpace::MinContent,
1500 AvailableSpace::Definite(line_height * 0.55),
1501 );
1502 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1503
1504 let position = point(
1505 gutter_dimensions.width - gutter_dimensions.right_padding,
1506 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1507 );
1508 let centering_offset = point(
1509 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1510 (line_height - crease_toggle_size.height) / 2.,
1511 );
1512 let origin = gutter_hitbox.origin + position + centering_offset;
1513 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1514 }
1515 }
1516 }
1517
1518 #[allow(clippy::too_many_arguments)]
1519 fn prepaint_crease_trailers(
1520 &self,
1521 trailers: Vec<Option<AnyElement>>,
1522 lines: &[LineWithInvisibles],
1523 line_height: Pixels,
1524 content_origin: gpui::Point<Pixels>,
1525 scroll_pixel_position: gpui::Point<Pixels>,
1526 em_width: Pixels,
1527 window: &mut Window,
1528 cx: &mut App,
1529 ) -> Vec<Option<CreaseTrailerLayout>> {
1530 trailers
1531 .into_iter()
1532 .enumerate()
1533 .map(|(ix, element)| {
1534 let mut element = element?;
1535 let available_space = size(
1536 AvailableSpace::MinContent,
1537 AvailableSpace::Definite(line_height),
1538 );
1539 let size = element.layout_as_root(available_space, window, cx);
1540
1541 let line = &lines[ix];
1542 let padding = if line.width == Pixels::ZERO {
1543 Pixels::ZERO
1544 } else {
1545 4. * em_width
1546 };
1547 let position = point(
1548 scroll_pixel_position.x + line.width + padding,
1549 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1550 );
1551 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1552 let origin = content_origin + position + centering_offset;
1553 element.prepaint_as_root(origin, available_space, window, cx);
1554 Some(CreaseTrailerLayout {
1555 element,
1556 bounds: Bounds::new(origin, size),
1557 })
1558 })
1559 .collect()
1560 }
1561
1562 // Folds contained in a hunk are ignored apart from shrinking visual size
1563 // If a fold contains any hunks then that fold line is marked as modified
1564 fn layout_gutter_diff_hunks(
1565 &self,
1566 line_height: Pixels,
1567 gutter_hitbox: &Hitbox,
1568 display_rows: Range<DisplayRow>,
1569 snapshot: &EditorSnapshot,
1570 window: &mut Window,
1571 cx: &mut App,
1572 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1573 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1574 let mut display_hunks = snapshot
1575 .display_diff_hunks_for_rows(display_rows, folded_buffers)
1576 .map(|hunk| (hunk, None))
1577 .collect::<Vec<_>>();
1578 let git_gutter_setting = ProjectSettings::get_global(cx)
1579 .git
1580 .git_gutter
1581 .unwrap_or_default();
1582 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1583 for (hunk, hitbox) in &mut display_hunks {
1584 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1585 let hunk_bounds =
1586 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1587 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1588 }
1589 }
1590 }
1591
1592 display_hunks
1593 }
1594
1595 #[allow(clippy::too_many_arguments)]
1596 fn layout_inline_diagnostics(
1597 &self,
1598 line_layouts: &[LineWithInvisibles],
1599 crease_trailers: &[Option<CreaseTrailerLayout>],
1600 content_origin: gpui::Point<Pixels>,
1601 scroll_pixel_position: gpui::Point<Pixels>,
1602 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
1603 start_row: DisplayRow,
1604 end_row: DisplayRow,
1605 line_height: Pixels,
1606 em_width: Pixels,
1607 style: &EditorStyle,
1608 window: &mut Window,
1609 cx: &mut App,
1610 ) -> HashMap<DisplayRow, AnyElement> {
1611 let max_severity = ProjectSettings::get_global(cx)
1612 .diagnostics
1613 .inline
1614 .max_severity
1615 .map_or(DiagnosticSeverity::HINT, |severity| match severity {
1616 project_settings::DiagnosticSeverity::Error => DiagnosticSeverity::ERROR,
1617 project_settings::DiagnosticSeverity::Warning => DiagnosticSeverity::WARNING,
1618 project_settings::DiagnosticSeverity::Info => DiagnosticSeverity::INFORMATION,
1619 project_settings::DiagnosticSeverity::Hint => DiagnosticSeverity::HINT,
1620 });
1621
1622 let active_diagnostics_group = self
1623 .editor
1624 .read(cx)
1625 .active_diagnostics
1626 .as_ref()
1627 .map(|active_diagnostics| active_diagnostics.group_id);
1628
1629 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
1630 let snapshot = editor.snapshot(window, cx);
1631 editor
1632 .inline_diagnostics
1633 .iter()
1634 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
1635 .filter(|(_, diagnostic)| match active_diagnostics_group {
1636 Some(active_diagnostics_group) => {
1637 // Active diagnostics are all shown in the editor already, no need to display them inline
1638 diagnostic.group_id != active_diagnostics_group
1639 }
1640 None => true,
1641 })
1642 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
1643 .skip_while(|(point, _)| point.row() < start_row)
1644 .take_while(|(point, _)| point.row() < end_row)
1645 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
1646 acc.entry(point.row())
1647 .or_insert_with(Vec::new)
1648 .push(diagnostic);
1649 acc
1650 })
1651 });
1652
1653 if diagnostics_by_rows.is_empty() {
1654 return HashMap::default();
1655 }
1656
1657 let severity_to_color = |sev: &DiagnosticSeverity| match sev {
1658 &DiagnosticSeverity::ERROR => Color::Error,
1659 &DiagnosticSeverity::WARNING => Color::Warning,
1660 &DiagnosticSeverity::INFORMATION => Color::Info,
1661 &DiagnosticSeverity::HINT => Color::Hint,
1662 _ => Color::Error,
1663 };
1664
1665 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
1666 let min_x = ProjectSettings::get_global(cx)
1667 .diagnostics
1668 .inline
1669 .min_column as f32
1670 * em_width;
1671
1672 let mut elements = HashMap::default();
1673 for (row, mut diagnostics) in diagnostics_by_rows {
1674 diagnostics.sort_by_key(|diagnostic| {
1675 (
1676 diagnostic.severity,
1677 std::cmp::Reverse(diagnostic.is_primary),
1678 diagnostic.start.row,
1679 diagnostic.start.column,
1680 )
1681 });
1682
1683 let Some(diagnostic_to_render) = diagnostics
1684 .iter()
1685 .find(|diagnostic| diagnostic.is_primary)
1686 .or_else(|| diagnostics.first())
1687 else {
1688 continue;
1689 };
1690
1691 let pos_y = content_origin.y
1692 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
1693
1694 let window_ix = row.0.saturating_sub(start_row.0) as usize;
1695 let pos_x = {
1696 let crease_trailer_layout = &crease_trailers[window_ix];
1697 let line_layout = &line_layouts[window_ix];
1698
1699 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
1700 crease_trailer.bounds.right()
1701 } else {
1702 content_origin.x - scroll_pixel_position.x + line_layout.width
1703 };
1704
1705 let padded_line = line_end + padding;
1706 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
1707
1708 cmp::max(padded_line, min_start)
1709 };
1710
1711 let behind_inline_completion_popover = inline_completion_popover_origin
1712 .as_ref()
1713 .map_or(false, |inline_completion_popover_origin| {
1714 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
1715 });
1716 let opacity = if behind_inline_completion_popover {
1717 0.5
1718 } else {
1719 1.0
1720 };
1721
1722 let mut element = h_flex()
1723 .id(("diagnostic", row.0))
1724 .h(line_height)
1725 .w_full()
1726 .px_1()
1727 .rounded_xs()
1728 .opacity(opacity)
1729 .bg(severity_to_color(&diagnostic_to_render.severity)
1730 .color(cx)
1731 .opacity(0.05))
1732 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
1733 .text_sm()
1734 .font_family(style.text.font().family)
1735 .child(diagnostic_to_render.message.clone())
1736 .into_any();
1737
1738 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
1739
1740 elements.insert(row, element);
1741 }
1742
1743 elements
1744 }
1745
1746 #[allow(clippy::too_many_arguments)]
1747 fn layout_inline_blame(
1748 &self,
1749 display_row: DisplayRow,
1750 row_info: &RowInfo,
1751 line_layout: &LineWithInvisibles,
1752 crease_trailer: Option<&CreaseTrailerLayout>,
1753 em_width: Pixels,
1754 content_origin: gpui::Point<Pixels>,
1755 scroll_pixel_position: gpui::Point<Pixels>,
1756 line_height: Pixels,
1757 window: &mut Window,
1758 cx: &mut App,
1759 ) -> Option<AnyElement> {
1760 if !self
1761 .editor
1762 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1763 {
1764 return None;
1765 }
1766
1767 let editor = self.editor.read(cx);
1768 let blame = editor.blame.clone()?;
1769 let padding = {
1770 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1771 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1772
1773 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1774
1775 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1776 match &inline_completion.completion {
1777 InlineCompletion::Edit {
1778 display_mode: EditDisplayMode::TabAccept,
1779 ..
1780 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1781 _ => {}
1782 }
1783 }
1784
1785 padding * em_width
1786 };
1787
1788 let blame_entry = blame
1789 .update(cx, |blame, cx| {
1790 blame.blame_for_rows(&[*row_info], cx).next()
1791 })
1792 .flatten()?;
1793
1794 let mut element =
1795 render_inline_blame_entry(self.editor.clone(), &blame, blame_entry, &self.style, cx);
1796
1797 let start_y = content_origin.y
1798 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1799
1800 let start_x = {
1801 let line_end = if let Some(crease_trailer) = crease_trailer {
1802 crease_trailer.bounds.right()
1803 } else {
1804 content_origin.x - scroll_pixel_position.x + line_layout.width
1805 };
1806
1807 let padded_line_end = line_end + padding;
1808
1809 let min_column_in_pixels = ProjectSettings::get_global(cx)
1810 .git
1811 .inline_blame
1812 .and_then(|settings| settings.min_column)
1813 .map(|col| self.column_pixels(col as usize, window, cx))
1814 .unwrap_or(px(0.));
1815 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1816
1817 cmp::max(padded_line_end, min_start)
1818 };
1819
1820 let absolute_offset = point(start_x, start_y);
1821 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1822
1823 Some(element)
1824 }
1825
1826 #[allow(clippy::too_many_arguments)]
1827 fn layout_blame_entries(
1828 &self,
1829 buffer_rows: &[RowInfo],
1830 em_width: Pixels,
1831 scroll_position: gpui::Point<f32>,
1832 line_height: Pixels,
1833 gutter_hitbox: &Hitbox,
1834 max_width: Option<Pixels>,
1835 window: &mut Window,
1836 cx: &mut App,
1837 ) -> Option<Vec<AnyElement>> {
1838 if !self
1839 .editor
1840 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1841 {
1842 return None;
1843 }
1844
1845 let blame = self.editor.read(cx).blame.clone()?;
1846 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1847 blame.blame_for_rows(buffer_rows, cx).collect()
1848 });
1849
1850 let width = if let Some(max_width) = max_width {
1851 AvailableSpace::Definite(max_width)
1852 } else {
1853 AvailableSpace::MaxContent
1854 };
1855 let scroll_top = scroll_position.y * line_height;
1856 let start_x = em_width;
1857
1858 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1859
1860 let shaped_lines = blamed_rows
1861 .into_iter()
1862 .enumerate()
1863 .flat_map(|(ix, blame_entry)| {
1864 if let Some(blame_entry) = blame_entry {
1865 let mut element = render_blame_entry(
1866 ix,
1867 &blame,
1868 blame_entry,
1869 &self.style,
1870 &mut last_used_color,
1871 self.editor.clone(),
1872 cx,
1873 );
1874
1875 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1876 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1877
1878 element.prepaint_as_root(
1879 absolute_offset,
1880 size(width, AvailableSpace::MinContent),
1881 window,
1882 cx,
1883 );
1884
1885 Some(element)
1886 } else {
1887 None
1888 }
1889 })
1890 .collect();
1891
1892 Some(shaped_lines)
1893 }
1894
1895 #[allow(clippy::too_many_arguments)]
1896 fn layout_indent_guides(
1897 &self,
1898 content_origin: gpui::Point<Pixels>,
1899 text_origin: gpui::Point<Pixels>,
1900 visible_buffer_range: Range<MultiBufferRow>,
1901 scroll_pixel_position: gpui::Point<Pixels>,
1902 line_height: Pixels,
1903 snapshot: &DisplaySnapshot,
1904 window: &mut Window,
1905 cx: &mut App,
1906 ) -> Option<Vec<IndentGuideLayout>> {
1907 let indent_guides = self.editor.update(cx, |editor, cx| {
1908 editor.indent_guides(visible_buffer_range, snapshot, cx)
1909 })?;
1910
1911 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1912 editor
1913 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1914 .unwrap_or_default()
1915 });
1916
1917 Some(
1918 indent_guides
1919 .into_iter()
1920 .enumerate()
1921 .filter_map(|(i, indent_guide)| {
1922 let single_indent_width =
1923 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1924 let total_width = single_indent_width * indent_guide.depth as f32;
1925 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1926 if start_x >= text_origin.x {
1927 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1928 indent_guide.start_row..indent_guide.end_row,
1929 line_height,
1930 snapshot,
1931 );
1932
1933 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1934
1935 Some(IndentGuideLayout {
1936 origin: point(start_x, start_y),
1937 length,
1938 single_indent_width,
1939 depth: indent_guide.depth,
1940 active: active_indent_guide_indices.contains(&i),
1941 settings: indent_guide.settings,
1942 })
1943 } else {
1944 None
1945 }
1946 })
1947 .collect(),
1948 )
1949 }
1950
1951 fn calculate_indent_guide_bounds(
1952 row_range: Range<MultiBufferRow>,
1953 line_height: Pixels,
1954 snapshot: &DisplaySnapshot,
1955 ) -> (gpui::Pixels, gpui::Pixels) {
1956 let start_point = Point::new(row_range.start.0, 0);
1957 let end_point = Point::new(row_range.end.0, 0);
1958
1959 let row_range = start_point.to_display_point(snapshot).row()
1960 ..end_point.to_display_point(snapshot).row();
1961
1962 let mut prev_line = start_point;
1963 prev_line.row = prev_line.row.saturating_sub(1);
1964 let prev_line = prev_line.to_display_point(snapshot).row();
1965
1966 let mut cons_line = end_point;
1967 cons_line.row += 1;
1968 let cons_line = cons_line.to_display_point(snapshot).row();
1969
1970 let mut offset_y = row_range.start.0 as f32 * line_height;
1971 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1972
1973 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1974 if row_range.end == cons_line {
1975 length += line_height;
1976 }
1977
1978 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1979 // we want to extend the indent guide to the start of the block.
1980 let mut block_height = 0;
1981 let mut block_offset = 0;
1982 let mut found_excerpt_header = false;
1983 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1984 if matches!(block, Block::ExcerptBoundary { .. }) {
1985 found_excerpt_header = true;
1986 break;
1987 }
1988 block_offset += block.height();
1989 block_height += block.height();
1990 }
1991 if !found_excerpt_header {
1992 offset_y -= block_offset as f32 * line_height;
1993 length += block_height as f32 * line_height;
1994 }
1995
1996 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1997 // we want to ensure that the indent guide stops before the excerpt header.
1998 let mut block_height = 0;
1999 let mut found_excerpt_header = false;
2000 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2001 if matches!(block, Block::ExcerptBoundary { .. }) {
2002 found_excerpt_header = true;
2003 }
2004 block_height += block.height();
2005 }
2006 if found_excerpt_header {
2007 length -= block_height as f32 * line_height;
2008 }
2009
2010 (offset_y, length)
2011 }
2012
2013 #[allow(clippy::too_many_arguments)]
2014 fn layout_run_indicators(
2015 &self,
2016 line_height: Pixels,
2017 range: Range<DisplayRow>,
2018 scroll_pixel_position: gpui::Point<Pixels>,
2019 gutter_dimensions: &GutterDimensions,
2020 gutter_hitbox: &Hitbox,
2021 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2022 snapshot: &EditorSnapshot,
2023 window: &mut Window,
2024 cx: &mut App,
2025 ) -> Vec<AnyElement> {
2026 self.editor.update(cx, |editor, cx| {
2027 let active_task_indicator_row =
2028 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2029 deployed_from_indicator,
2030 actions,
2031 ..
2032 })) = editor.context_menu.borrow().as_ref()
2033 {
2034 actions
2035 .tasks
2036 .as_ref()
2037 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2038 .or(*deployed_from_indicator)
2039 } else {
2040 None
2041 };
2042
2043 let offset_range_start =
2044 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2045
2046 let offset_range_end =
2047 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2048
2049 editor
2050 .tasks
2051 .iter()
2052 .filter_map(|(_, tasks)| {
2053 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2054 if multibuffer_point < offset_range_start
2055 || multibuffer_point > offset_range_end
2056 {
2057 return None;
2058 }
2059 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2060 let buffer_folded = snapshot
2061 .buffer_snapshot
2062 .buffer_line_for_row(multibuffer_row)
2063 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2064 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2065 .unwrap_or(false);
2066 if buffer_folded {
2067 return None;
2068 }
2069
2070 if snapshot.is_line_folded(multibuffer_row) {
2071 // Skip folded indicators, unless it's the starting line of a fold.
2072 if multibuffer_row
2073 .0
2074 .checked_sub(1)
2075 .map_or(false, |previous_row| {
2076 snapshot.is_line_folded(MultiBufferRow(previous_row))
2077 })
2078 {
2079 return None;
2080 }
2081 }
2082 let display_row = multibuffer_point.to_display_point(snapshot).row();
2083 let button = editor.render_run_indicator(
2084 &self.style,
2085 Some(display_row) == active_task_indicator_row,
2086 display_row,
2087 cx,
2088 );
2089
2090 let button = prepaint_gutter_button(
2091 button,
2092 display_row,
2093 line_height,
2094 gutter_dimensions,
2095 scroll_pixel_position,
2096 gutter_hitbox,
2097 display_hunks,
2098 window,
2099 cx,
2100 );
2101 Some(button)
2102 })
2103 .collect_vec()
2104 })
2105 }
2106
2107 #[allow(clippy::too_many_arguments)]
2108 fn layout_code_actions_indicator(
2109 &self,
2110 line_height: Pixels,
2111 newest_selection_head: DisplayPoint,
2112 scroll_pixel_position: gpui::Point<Pixels>,
2113 gutter_dimensions: &GutterDimensions,
2114 gutter_hitbox: &Hitbox,
2115 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2116 window: &mut Window,
2117 cx: &mut App,
2118 ) -> Option<AnyElement> {
2119 let mut active = false;
2120 let mut button = None;
2121 let row = newest_selection_head.row();
2122 self.editor.update(cx, |editor, cx| {
2123 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2124 deployed_from_indicator,
2125 ..
2126 })) = editor.context_menu.borrow().as_ref()
2127 {
2128 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2129 };
2130 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2131 });
2132
2133 let button = prepaint_gutter_button(
2134 button?,
2135 row,
2136 line_height,
2137 gutter_dimensions,
2138 scroll_pixel_position,
2139 gutter_hitbox,
2140 display_hunks,
2141 window,
2142 cx,
2143 );
2144
2145 Some(button)
2146 }
2147
2148 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2149 if let Some(index) = participant_index {
2150 cx.theme().players().color_for_participant(index.0)
2151 } else {
2152 cx.theme().players().absent()
2153 }
2154 }
2155
2156 fn calculate_relative_line_numbers(
2157 &self,
2158 snapshot: &EditorSnapshot,
2159 rows: &Range<DisplayRow>,
2160 relative_to: Option<DisplayRow>,
2161 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2162 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2163 let Some(relative_to) = relative_to else {
2164 return relative_rows;
2165 };
2166
2167 let start = rows.start.min(relative_to);
2168 let end = rows.end.max(relative_to);
2169
2170 let buffer_rows = snapshot
2171 .row_infos(start)
2172 .take(1 + end.minus(start) as usize)
2173 .collect::<Vec<_>>();
2174
2175 let head_idx = relative_to.minus(start);
2176 let mut delta = 1;
2177 let mut i = head_idx + 1;
2178 while i < buffer_rows.len() as u32 {
2179 if buffer_rows[i as usize].buffer_row.is_some() {
2180 if rows.contains(&DisplayRow(i + start.0)) {
2181 relative_rows.insert(DisplayRow(i + start.0), delta);
2182 }
2183 delta += 1;
2184 }
2185 i += 1;
2186 }
2187 delta = 1;
2188 i = head_idx.min(buffer_rows.len() as u32 - 1);
2189 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2190 i -= 1;
2191 }
2192
2193 while i > 0 {
2194 i -= 1;
2195 if buffer_rows[i as usize].buffer_row.is_some() {
2196 if rows.contains(&DisplayRow(i + start.0)) {
2197 relative_rows.insert(DisplayRow(i + start.0), delta);
2198 }
2199 delta += 1;
2200 }
2201 }
2202
2203 relative_rows
2204 }
2205
2206 #[allow(clippy::too_many_arguments)]
2207 fn layout_line_numbers(
2208 &self,
2209 gutter_hitbox: Option<&Hitbox>,
2210 gutter_dimensions: GutterDimensions,
2211 line_height: Pixels,
2212 scroll_position: gpui::Point<f32>,
2213 rows: Range<DisplayRow>,
2214 buffer_rows: &[RowInfo],
2215 newest_selection_head: Option<DisplayPoint>,
2216 snapshot: &EditorSnapshot,
2217 window: &mut Window,
2218 cx: &mut App,
2219 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2220 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2221 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2222 });
2223 if !include_line_numbers {
2224 return Arc::default();
2225 }
2226
2227 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2228 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2229 let newest = editor.selections.newest::<Point>(cx);
2230 SelectionLayout::new(
2231 newest,
2232 editor.selections.line_mode,
2233 editor.cursor_shape,
2234 &snapshot.display_snapshot,
2235 true,
2236 true,
2237 None,
2238 )
2239 .head
2240 });
2241 let is_relative = editor.should_use_relative_line_numbers(cx);
2242 (newest_selection_head, is_relative)
2243 });
2244
2245 let relative_to = if is_relative {
2246 Some(newest_selection_head.row())
2247 } else {
2248 None
2249 };
2250 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2251 let mut line_number = String::new();
2252 let line_numbers = buffer_rows
2253 .into_iter()
2254 .enumerate()
2255 .flat_map(|(ix, row_info)| {
2256 let display_row = DisplayRow(rows.start.0 + ix as u32);
2257 line_number.clear();
2258 let non_relative_number = row_info.buffer_row? + 1;
2259 let number = relative_rows
2260 .get(&display_row)
2261 .unwrap_or(&non_relative_number);
2262 write!(&mut line_number, "{number}").unwrap();
2263 if row_info
2264 .diff_status
2265 .is_some_and(|status| status.is_deleted())
2266 {
2267 return None;
2268 }
2269
2270 let color = cx.theme().colors().editor_line_number;
2271 let shaped_line = self
2272 .shape_line_number(SharedString::from(&line_number), color, window)
2273 .log_err()?;
2274 let scroll_top = scroll_position.y * line_height;
2275 let line_origin = gutter_hitbox.map(|hitbox| {
2276 hitbox.origin
2277 + point(
2278 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2279 ix as f32 * line_height - (scroll_top % line_height),
2280 )
2281 });
2282
2283 #[cfg(not(test))]
2284 let hitbox = line_origin.map(|line_origin| {
2285 window.insert_hitbox(
2286 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2287 false,
2288 )
2289 });
2290 #[cfg(test)]
2291 let hitbox = {
2292 let _ = line_origin;
2293 None
2294 };
2295
2296 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2297 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2298 let line_number = LineNumberLayout {
2299 shaped_line,
2300 hitbox,
2301 display_row,
2302 };
2303 Some((multi_buffer_row, line_number))
2304 })
2305 .collect();
2306 Arc::new(line_numbers)
2307 }
2308
2309 fn layout_crease_toggles(
2310 &self,
2311 rows: Range<DisplayRow>,
2312 row_infos: &[RowInfo],
2313 active_rows: &BTreeMap<DisplayRow, bool>,
2314 snapshot: &EditorSnapshot,
2315 window: &mut Window,
2316 cx: &mut App,
2317 ) -> Vec<Option<AnyElement>> {
2318 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2319 && snapshot.mode == EditorMode::Full
2320 && self.editor.read(cx).is_singleton(cx);
2321 if include_fold_statuses {
2322 row_infos
2323 .into_iter()
2324 .enumerate()
2325 .map(|(ix, info)| {
2326 let row = info.multibuffer_row?;
2327 let display_row = DisplayRow(rows.start.0 + ix as u32);
2328 let active = active_rows.contains_key(&display_row);
2329
2330 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2331 })
2332 .collect()
2333 } else {
2334 Vec::new()
2335 }
2336 }
2337
2338 fn layout_crease_trailers(
2339 &self,
2340 buffer_rows: impl IntoIterator<Item = RowInfo>,
2341 snapshot: &EditorSnapshot,
2342 window: &mut Window,
2343 cx: &mut App,
2344 ) -> Vec<Option<AnyElement>> {
2345 buffer_rows
2346 .into_iter()
2347 .map(|row_info| {
2348 if let Some(row) = row_info.multibuffer_row {
2349 snapshot.render_crease_trailer(row, window, cx)
2350 } else {
2351 None
2352 }
2353 })
2354 .collect()
2355 }
2356
2357 fn layout_lines(
2358 rows: Range<DisplayRow>,
2359 snapshot: &EditorSnapshot,
2360 style: &EditorStyle,
2361 editor_width: Pixels,
2362 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2363 window: &mut Window,
2364 cx: &mut App,
2365 ) -> Vec<LineWithInvisibles> {
2366 if rows.start >= rows.end {
2367 return Vec::new();
2368 }
2369
2370 // Show the placeholder when the editor is empty
2371 if snapshot.is_empty() {
2372 let font_size = style.text.font_size.to_pixels(window.rem_size());
2373 let placeholder_color = cx.theme().colors().text_placeholder;
2374 let placeholder_text = snapshot.placeholder_text();
2375
2376 let placeholder_lines = placeholder_text
2377 .as_ref()
2378 .map_or("", AsRef::as_ref)
2379 .split('\n')
2380 .skip(rows.start.0 as usize)
2381 .chain(iter::repeat(""))
2382 .take(rows.len());
2383 placeholder_lines
2384 .filter_map(move |line| {
2385 let run = TextRun {
2386 len: line.len(),
2387 font: style.text.font(),
2388 color: placeholder_color,
2389 background_color: None,
2390 underline: Default::default(),
2391 strikethrough: None,
2392 };
2393 window
2394 .text_system()
2395 .shape_line(line.to_string().into(), font_size, &[run])
2396 .log_err()
2397 })
2398 .map(|line| LineWithInvisibles {
2399 width: line.width,
2400 len: line.len,
2401 fragments: smallvec![LineFragment::Text(line)],
2402 invisibles: Vec::new(),
2403 font_size,
2404 })
2405 .collect()
2406 } else {
2407 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2408 LineWithInvisibles::from_chunks(
2409 chunks,
2410 &style,
2411 MAX_LINE_LEN,
2412 rows.len(),
2413 snapshot.mode,
2414 editor_width,
2415 is_row_soft_wrapped,
2416 window,
2417 cx,
2418 )
2419 }
2420 }
2421
2422 #[allow(clippy::too_many_arguments)]
2423 fn prepaint_lines(
2424 &self,
2425 start_row: DisplayRow,
2426 line_layouts: &mut [LineWithInvisibles],
2427 line_height: Pixels,
2428 scroll_pixel_position: gpui::Point<Pixels>,
2429 content_origin: gpui::Point<Pixels>,
2430 window: &mut Window,
2431 cx: &mut App,
2432 ) -> SmallVec<[AnyElement; 1]> {
2433 let mut line_elements = SmallVec::new();
2434 for (ix, line) in line_layouts.iter_mut().enumerate() {
2435 let row = start_row + DisplayRow(ix as u32);
2436 line.prepaint(
2437 line_height,
2438 scroll_pixel_position,
2439 row,
2440 content_origin,
2441 &mut line_elements,
2442 window,
2443 cx,
2444 );
2445 }
2446 line_elements
2447 }
2448
2449 #[allow(clippy::too_many_arguments)]
2450 fn render_block(
2451 &self,
2452 block: &Block,
2453 available_width: AvailableSpace,
2454 block_id: BlockId,
2455 block_row_start: DisplayRow,
2456 snapshot: &EditorSnapshot,
2457 text_x: Pixels,
2458 rows: &Range<DisplayRow>,
2459 line_layouts: &[LineWithInvisibles],
2460 gutter_dimensions: &GutterDimensions,
2461 line_height: Pixels,
2462 em_width: Pixels,
2463 text_hitbox: &Hitbox,
2464 editor_width: Pixels,
2465 scroll_width: &mut Pixels,
2466 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2467 selections: &[Selection<Point>],
2468 selected_buffer_ids: &Vec<BufferId>,
2469 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2470 sticky_header_excerpt_id: Option<ExcerptId>,
2471 window: &mut Window,
2472 cx: &mut App,
2473 ) -> (AnyElement, Size<Pixels>) {
2474 let mut element = match block {
2475 Block::Custom(block) => {
2476 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2477 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2478 let align_to = block_start.to_display_point(snapshot);
2479 let anchor_x = text_x
2480 + if rows.contains(&align_to.row()) {
2481 line_layouts[align_to.row().minus(rows.start) as usize]
2482 .x_for_index(align_to.column() as usize)
2483 } else {
2484 layout_line(
2485 align_to.row(),
2486 snapshot,
2487 &self.style,
2488 editor_width,
2489 is_row_soft_wrapped,
2490 window,
2491 cx,
2492 )
2493 .x_for_index(align_to.column() as usize)
2494 };
2495
2496 let selected = selections
2497 .binary_search_by(|selection| {
2498 if selection.end <= block_start {
2499 Ordering::Less
2500 } else if selection.start >= block_end {
2501 Ordering::Greater
2502 } else {
2503 Ordering::Equal
2504 }
2505 })
2506 .is_ok();
2507
2508 div()
2509 .size_full()
2510 .child(block.render(&mut BlockContext {
2511 window,
2512 app: cx,
2513 anchor_x,
2514 gutter_dimensions,
2515 line_height,
2516 em_width,
2517 block_id,
2518 selected,
2519 max_width: text_hitbox.size.width.max(*scroll_width),
2520 editor_style: &self.style,
2521 }))
2522 .into_any()
2523 }
2524
2525 Block::FoldedBuffer {
2526 first_excerpt,
2527 prev_excerpt,
2528 show_excerpt_controls,
2529 height,
2530 } => {
2531 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2532 let mut result = v_flex().id(block_id).w_full();
2533
2534 if let Some(prev_excerpt) = prev_excerpt {
2535 if *show_excerpt_controls {
2536 result = result.child(self.render_expand_excerpt_control(
2537 block_id,
2538 ExpandExcerptDirection::Down,
2539 prev_excerpt.id,
2540 gutter_dimensions,
2541 window,
2542 cx,
2543 ));
2544 }
2545 }
2546
2547 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2548 result
2549 .child(self.render_buffer_header(
2550 first_excerpt,
2551 true,
2552 selected,
2553 jump_data,
2554 window,
2555 cx,
2556 ))
2557 .into_any_element()
2558 }
2559
2560 Block::ExcerptBoundary {
2561 prev_excerpt,
2562 next_excerpt,
2563 show_excerpt_controls,
2564 height,
2565 starts_new_buffer,
2566 } => {
2567 let color = cx.theme().colors().clone();
2568 let mut result = v_flex().id(block_id).w_full();
2569
2570 if let Some(prev_excerpt) = prev_excerpt {
2571 if *show_excerpt_controls {
2572 result = result.child(self.render_expand_excerpt_control(
2573 block_id,
2574 ExpandExcerptDirection::Down,
2575 prev_excerpt.id,
2576 gutter_dimensions,
2577 window,
2578 cx,
2579 ));
2580 }
2581 }
2582
2583 if let Some(next_excerpt) = next_excerpt {
2584 let jump_data =
2585 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2586
2587 if *starts_new_buffer {
2588 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2589 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2590
2591 result = result.child(self.render_buffer_header(
2592 next_excerpt,
2593 false,
2594 selected,
2595 jump_data,
2596 window,
2597 cx,
2598 ));
2599 } else {
2600 result = result
2601 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2602 }
2603
2604 if *show_excerpt_controls {
2605 result = result.child(self.render_expand_excerpt_control(
2606 block_id,
2607 ExpandExcerptDirection::Up,
2608 next_excerpt.id,
2609 gutter_dimensions,
2610 window,
2611 cx,
2612 ));
2613 }
2614 } else {
2615 if *show_excerpt_controls {
2616 result = result.child(
2617 h_flex()
2618 .relative()
2619 .child(
2620 div()
2621 .top(px(0.))
2622 .absolute()
2623 .w_full()
2624 .h_px()
2625 .bg(color.border_variant),
2626 )
2627 .child(self.render_expand_excerpt_control(
2628 block_id,
2629 ExpandExcerptDirection::Up,
2630 next_excerpt.id,
2631 gutter_dimensions,
2632 window,
2633 cx,
2634 )),
2635 );
2636 }
2637 };
2638 }
2639
2640 result.into_any()
2641 }
2642 };
2643
2644 // Discover the element's content height, then round up to the nearest multiple of line height.
2645 let preliminary_size = element.layout_as_root(
2646 size(available_width, AvailableSpace::MinContent),
2647 window,
2648 cx,
2649 );
2650 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2651 let final_size = if preliminary_size.height == quantized_height {
2652 preliminary_size
2653 } else {
2654 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2655 };
2656
2657 if let BlockId::Custom(custom_block_id) = block_id {
2658 if block.height() > 0 {
2659 let element_height_in_lines =
2660 ((final_size.height / line_height).ceil() as u32).max(1);
2661 if element_height_in_lines != block.height() {
2662 resized_blocks.insert(custom_block_id, element_height_in_lines);
2663 }
2664 }
2665 }
2666
2667 (element, final_size)
2668 }
2669
2670 fn render_buffer_header(
2671 &self,
2672 for_excerpt: &ExcerptInfo,
2673 is_folded: bool,
2674 is_selected: bool,
2675 jump_data: JumpData,
2676 window: &mut Window,
2677 cx: &mut App,
2678 ) -> Div {
2679 let editor = self.editor.read(cx);
2680 let file_status = editor
2681 .buffer
2682 .read(cx)
2683 .all_diff_hunks_expanded()
2684 .then(|| {
2685 editor
2686 .project
2687 .as_ref()?
2688 .read(cx)
2689 .status_for_buffer_id(for_excerpt.buffer_id, cx)
2690 })
2691 .flatten();
2692
2693 let include_root = editor
2694 .project
2695 .as_ref()
2696 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2697 .unwrap_or_default();
2698 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2699 let filename = path
2700 .as_ref()
2701 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2702 let parent_path = path.as_ref().and_then(|path| {
2703 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2704 });
2705 let focus_handle = editor.focus_handle(cx);
2706 let colors = cx.theme().colors();
2707
2708 div()
2709 .px_2()
2710 .pt_2()
2711 .w_full()
2712 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2713 .child(
2714 h_flex()
2715 .size_full()
2716 .gap_2()
2717 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2718 .pl_0p5()
2719 .pr_5()
2720 .rounded_sm()
2721 .shadow_md()
2722 .border_1()
2723 .map(|div| {
2724 let border_color = if is_selected
2725 && is_folded
2726 && focus_handle.contains_focused(window, cx)
2727 {
2728 colors.border_focused
2729 } else {
2730 colors.border
2731 };
2732 div.border_color(border_color)
2733 })
2734 .bg(colors.editor_subheader_background)
2735 .hover(|style| style.bg(colors.element_hover))
2736 .map(|header| {
2737 let editor = self.editor.clone();
2738 let buffer_id = for_excerpt.buffer_id;
2739 let toggle_chevron_icon =
2740 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2741 header.child(
2742 div()
2743 .hover(|style| style.bg(colors.element_selected))
2744 .rounded_xs()
2745 .child(
2746 ButtonLike::new("toggle-buffer-fold")
2747 .style(ui::ButtonStyle::Transparent)
2748 .size(ButtonSize::Large)
2749 .width(px(30.).into())
2750 .children(toggle_chevron_icon)
2751 .tooltip({
2752 let focus_handle = focus_handle.clone();
2753 move |window, cx| {
2754 Tooltip::for_action_in(
2755 "Toggle Excerpt Fold",
2756 &ToggleFold,
2757 &focus_handle,
2758 window,
2759 cx,
2760 )
2761 }
2762 })
2763 .on_click(move |_, _, cx| {
2764 if is_folded {
2765 editor.update(cx, |editor, cx| {
2766 editor.unfold_buffer(buffer_id, cx);
2767 });
2768 } else {
2769 editor.update(cx, |editor, cx| {
2770 editor.fold_buffer(buffer_id, cx);
2771 });
2772 }
2773 }),
2774 ),
2775 )
2776 })
2777 .children(
2778 editor
2779 .addons
2780 .values()
2781 .filter_map(|addon| {
2782 addon.render_buffer_header_controls(for_excerpt, window, cx)
2783 })
2784 .take(1),
2785 )
2786 .child(
2787 h_flex()
2788 .cursor_pointer()
2789 .id("path header block")
2790 .size_full()
2791 .justify_between()
2792 .child(
2793 h_flex()
2794 .gap_2()
2795 .child(
2796 Label::new(
2797 filename
2798 .map(SharedString::from)
2799 .unwrap_or_else(|| "untitled".into()),
2800 )
2801 .single_line()
2802 .when_some(
2803 file_status,
2804 |el, status| {
2805 el.color(if status.is_conflicted() {
2806 Color::Conflict
2807 } else if status.is_modified() {
2808 Color::Modified
2809 } else if status.is_deleted() {
2810 Color::Disabled
2811 } else {
2812 Color::Created
2813 })
2814 .when(status.is_deleted(), |el| el.strikethrough())
2815 },
2816 ),
2817 )
2818 .when_some(parent_path, |then, path| {
2819 then.child(div().child(path).text_color(
2820 if file_status.is_some_and(FileStatus::is_deleted) {
2821 colors.text_disabled
2822 } else {
2823 colors.text_muted
2824 },
2825 ))
2826 }),
2827 )
2828 .when(is_selected, |el| {
2829 el.child(
2830 h_flex()
2831 .id("jump-to-file-button")
2832 .gap_2p5()
2833 .child(Label::new("Jump To File"))
2834 .children(
2835 KeyBinding::for_action_in(
2836 &OpenExcerpts,
2837 &focus_handle,
2838 window,
2839 cx,
2840 )
2841 .map(|binding| binding.into_any_element()),
2842 ),
2843 )
2844 })
2845 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2846 .on_click(window.listener_for(&self.editor, {
2847 move |editor, e: &ClickEvent, window, cx| {
2848 editor.open_excerpts_common(
2849 Some(jump_data.clone()),
2850 e.down.modifiers.secondary(),
2851 window,
2852 cx,
2853 );
2854 }
2855 })),
2856 ),
2857 )
2858 }
2859
2860 fn render_expand_excerpt_control(
2861 &self,
2862 block_id: BlockId,
2863 direction: ExpandExcerptDirection,
2864 excerpt_id: ExcerptId,
2865 gutter_dimensions: &GutterDimensions,
2866 window: &Window,
2867 cx: &mut App,
2868 ) -> impl IntoElement {
2869 let color = cx.theme().colors().clone();
2870 let hover_color = color.border_variant.opacity(0.5);
2871 let focus_handle = self.editor.focus_handle(cx).clone();
2872
2873 let icon_offset =
2874 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2875 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2876 let group_name = if direction == ExpandExcerptDirection::Down {
2877 "expand-down"
2878 } else {
2879 "expand-up"
2880 };
2881
2882 let expand_area = |id: SharedString| {
2883 h_flex()
2884 .id(id)
2885 .w_full()
2886 .cursor_pointer()
2887 .block_mouse_down()
2888 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2889 .hover(|style| style.bg(hover_color))
2890 .tooltip({
2891 let focus_handle = focus_handle.clone();
2892 move |window, cx| {
2893 Tooltip::for_action_in(
2894 "Expand Excerpt",
2895 &ExpandExcerpts { lines: 0 },
2896 &focus_handle,
2897 window,
2898 cx,
2899 )
2900 }
2901 })
2902 };
2903
2904 expand_area(
2905 format!(
2906 "block-{}-{}",
2907 block_id,
2908 if direction == ExpandExcerptDirection::Down {
2909 "down"
2910 } else {
2911 "up"
2912 }
2913 )
2914 .into(),
2915 )
2916 .group(group_name)
2917 .child(
2918 h_flex()
2919 .w(icon_offset)
2920 .h(header_height)
2921 .flex_none()
2922 .justify_end()
2923 .child(
2924 ButtonLike::new("expand-icon")
2925 .style(ButtonStyle::Transparent)
2926 .child(
2927 svg()
2928 .path(if direction == ExpandExcerptDirection::Down {
2929 IconName::ArrowDownFromLine.path()
2930 } else {
2931 IconName::ArrowUpFromLine.path()
2932 })
2933 .size(IconSize::XSmall.rems())
2934 .text_color(cx.theme().colors().editor_line_number)
2935 .group_hover(group_name, |style| {
2936 style.text_color(cx.theme().colors().editor_active_line_number)
2937 }),
2938 ),
2939 ),
2940 )
2941 .on_click(window.listener_for(&self.editor, {
2942 move |editor, _, _, cx| {
2943 editor.expand_excerpt(excerpt_id, direction, cx);
2944 cx.stop_propagation();
2945 }
2946 }))
2947 }
2948
2949 #[allow(clippy::too_many_arguments)]
2950 fn render_blocks(
2951 &self,
2952 rows: Range<DisplayRow>,
2953 snapshot: &EditorSnapshot,
2954 hitbox: &Hitbox,
2955 text_hitbox: &Hitbox,
2956 editor_width: Pixels,
2957 scroll_width: &mut Pixels,
2958 gutter_dimensions: &GutterDimensions,
2959 em_width: Pixels,
2960 text_x: Pixels,
2961 line_height: Pixels,
2962 line_layouts: &[LineWithInvisibles],
2963 selections: &[Selection<Point>],
2964 selected_buffer_ids: &Vec<BufferId>,
2965 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2966 sticky_header_excerpt_id: Option<ExcerptId>,
2967 window: &mut Window,
2968 cx: &mut App,
2969 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2970 let (fixed_blocks, non_fixed_blocks) = snapshot
2971 .blocks_in_range(rows.clone())
2972 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2973
2974 let mut focused_block = self
2975 .editor
2976 .update(cx, |editor, _| editor.take_focused_block());
2977 let mut fixed_block_max_width = Pixels::ZERO;
2978 let mut blocks = Vec::new();
2979 let mut resized_blocks = HashMap::default();
2980
2981 for (row, block) in fixed_blocks {
2982 let block_id = block.id();
2983
2984 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2985 focused_block = None;
2986 }
2987
2988 let (element, element_size) = self.render_block(
2989 block,
2990 AvailableSpace::MinContent,
2991 block_id,
2992 row,
2993 snapshot,
2994 text_x,
2995 &rows,
2996 line_layouts,
2997 gutter_dimensions,
2998 line_height,
2999 em_width,
3000 text_hitbox,
3001 editor_width,
3002 scroll_width,
3003 &mut resized_blocks,
3004 selections,
3005 selected_buffer_ids,
3006 is_row_soft_wrapped,
3007 sticky_header_excerpt_id,
3008 window,
3009 cx,
3010 );
3011 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3012 blocks.push(BlockLayout {
3013 id: block_id,
3014 row: Some(row),
3015 element,
3016 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3017 style: BlockStyle::Fixed,
3018 });
3019 }
3020
3021 for (row, block) in non_fixed_blocks {
3022 let style = block.style();
3023 let width = match style {
3024 BlockStyle::Sticky => hitbox.size.width,
3025 BlockStyle::Flex => hitbox
3026 .size
3027 .width
3028 .max(fixed_block_max_width)
3029 .max(gutter_dimensions.width + *scroll_width),
3030 BlockStyle::Fixed => unreachable!(),
3031 };
3032 let block_id = block.id();
3033
3034 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3035 focused_block = None;
3036 }
3037
3038 let (element, element_size) = self.render_block(
3039 block,
3040 width.into(),
3041 block_id,
3042 row,
3043 snapshot,
3044 text_x,
3045 &rows,
3046 line_layouts,
3047 gutter_dimensions,
3048 line_height,
3049 em_width,
3050 text_hitbox,
3051 editor_width,
3052 scroll_width,
3053 &mut resized_blocks,
3054 selections,
3055 selected_buffer_ids,
3056 is_row_soft_wrapped,
3057 sticky_header_excerpt_id,
3058 window,
3059 cx,
3060 );
3061
3062 blocks.push(BlockLayout {
3063 id: block_id,
3064 row: Some(row),
3065 element,
3066 available_space: size(width.into(), element_size.height.into()),
3067 style,
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 });
3119 }
3120 }
3121 }
3122 }
3123
3124 if resized_blocks.is_empty() {
3125 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3126 Ok(blocks)
3127 } else {
3128 Err(resized_blocks)
3129 }
3130 }
3131
3132 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3133 /// a restart of rendering for the editor based on the new sizes.
3134 #[allow(clippy::too_many_arguments)]
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 #[allow(clippy::too_many_arguments)]
3179 fn layout_sticky_buffer_header(
3180 &self,
3181 StickyHeaderExcerpt {
3182 excerpt,
3183 next_excerpt_controls_present,
3184 next_buffer_row,
3185 }: StickyHeaderExcerpt<'_>,
3186 scroll_position: f32,
3187 line_height: Pixels,
3188 snapshot: &EditorSnapshot,
3189 hitbox: &Hitbox,
3190 selected_buffer_ids: &Vec<BufferId>,
3191 window: &mut Window,
3192 cx: &mut App,
3193 ) -> AnyElement {
3194 let jump_data = header_jump_data(
3195 snapshot,
3196 DisplayRow(scroll_position as u32),
3197 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3198 excerpt,
3199 );
3200
3201 let editor_bg_color = cx.theme().colors().editor_background;
3202
3203 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3204
3205 let mut header = v_flex()
3206 .relative()
3207 .child(
3208 div()
3209 .w(hitbox.bounds.size.width)
3210 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3211 .bg(linear_gradient(
3212 0.,
3213 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3214 linear_color_stop(editor_bg_color, 0.6),
3215 ))
3216 .absolute()
3217 .top_0(),
3218 )
3219 .child(
3220 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3221 .into_any_element(),
3222 )
3223 .into_any_element();
3224
3225 let mut origin = hitbox.origin;
3226
3227 if let Some(next_buffer_row) = next_buffer_row {
3228 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3229
3230 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3231
3232 if next_excerpt_controls_present {
3233 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3234 }
3235
3236 let offset = scroll_position - max_row as f32;
3237
3238 if offset > 0.0 {
3239 origin.y -= Pixels(offset) * line_height;
3240 }
3241 }
3242
3243 let size = size(
3244 AvailableSpace::Definite(hitbox.size.width),
3245 AvailableSpace::MinContent,
3246 );
3247
3248 header.prepaint_as_root(origin, size, window, cx);
3249
3250 header
3251 }
3252
3253 #[allow(clippy::too_many_arguments)]
3254 fn layout_cursor_popovers(
3255 &self,
3256 line_height: Pixels,
3257 text_hitbox: &Hitbox,
3258 content_origin: gpui::Point<Pixels>,
3259 start_row: DisplayRow,
3260 scroll_pixel_position: gpui::Point<Pixels>,
3261 line_layouts: &[LineWithInvisibles],
3262 cursor: DisplayPoint,
3263 cursor_point: Point,
3264 style: &EditorStyle,
3265 window: &mut Window,
3266 cx: &mut App,
3267 ) {
3268 let mut min_menu_height = Pixels::ZERO;
3269 let mut max_menu_height = Pixels::ZERO;
3270 let mut height_above_menu = Pixels::ZERO;
3271 let height_below_menu = Pixels::ZERO;
3272 let mut edit_prediction_popover_visible = false;
3273 let mut context_menu_visible = false;
3274
3275 {
3276 let editor = self.editor.read(cx);
3277 if editor
3278 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3279 {
3280 height_above_menu +=
3281 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3282 edit_prediction_popover_visible = true;
3283 }
3284
3285 if editor.context_menu_visible() {
3286 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3287 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3288 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3289 context_menu_visible = true;
3290 }
3291 }
3292 }
3293
3294 let visible = edit_prediction_popover_visible || context_menu_visible;
3295 if !visible {
3296 return;
3297 }
3298
3299 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3300 let target_position = content_origin
3301 + gpui::Point {
3302 x: cmp::max(
3303 px(0.),
3304 cursor_row_layout.x_for_index(cursor.column() as usize)
3305 - scroll_pixel_position.x,
3306 ),
3307 y: cmp::max(
3308 px(0.),
3309 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3310 ),
3311 };
3312
3313 let viewport_bounds =
3314 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3315 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3316 ..Default::default()
3317 });
3318
3319 let min_height = height_above_menu + min_menu_height + height_below_menu;
3320 let max_height = height_above_menu + max_menu_height + height_below_menu;
3321 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3322 target_position,
3323 line_height,
3324 min_height,
3325 max_height,
3326 text_hitbox,
3327 viewport_bounds,
3328 window,
3329 cx,
3330 |height, max_width_for_stable_x, y_flipped, window, cx| {
3331 // First layout the menu to get its size - others can be at least this wide.
3332 let context_menu = if context_menu_visible {
3333 let menu_height = if y_flipped {
3334 height - height_below_menu
3335 } else {
3336 height - height_above_menu
3337 };
3338 let mut element = self
3339 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3340 .expect("Visible context menu should always render.");
3341 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3342 Some((CursorPopoverType::CodeContextMenu, element, size))
3343 } else {
3344 None
3345 };
3346 let min_width = context_menu
3347 .as_ref()
3348 .map_or(px(0.), |(_, _, size)| size.width);
3349 let max_width = max_width_for_stable_x.max(
3350 context_menu
3351 .as_ref()
3352 .map_or(px(0.), |(_, _, size)| size.width),
3353 );
3354
3355 let edit_prediction = if edit_prediction_popover_visible {
3356 self.editor.update(cx, move |editor, cx| {
3357 let accept_binding = editor.accept_edit_prediction_keybind(window, cx);
3358 let mut element = editor.render_edit_prediction_cursor_popover(
3359 min_width,
3360 max_width,
3361 cursor_point,
3362 style,
3363 accept_binding.keystroke(),
3364 window,
3365 cx,
3366 )?;
3367 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3368 Some((CursorPopoverType::EditPrediction, element, size))
3369 })
3370 } else {
3371 None
3372 };
3373 vec![edit_prediction, context_menu]
3374 .into_iter()
3375 .flatten()
3376 .collect::<Vec<_>>()
3377 },
3378 ) else {
3379 return;
3380 };
3381
3382 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3383 .iter()
3384 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3385 else {
3386 return;
3387 };
3388 let last_ix = laid_out_popovers.len() - 1;
3389 let menu_is_last = menu_ix == last_ix;
3390 let first_popover_bounds = laid_out_popovers[0].1;
3391 let last_popover_bounds = laid_out_popovers[last_ix].1;
3392
3393 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3394 // right, and otherwise it goes below or to the right.
3395 let mut target_bounds = Bounds::from_corners(
3396 first_popover_bounds.origin,
3397 last_popover_bounds.bottom_right(),
3398 );
3399 target_bounds.size.width = menu_bounds.size.width;
3400
3401 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3402 // based on this is preferred for layout stability.
3403 let mut max_target_bounds = target_bounds;
3404 max_target_bounds.size.height = max_height;
3405 if y_flipped {
3406 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3407 }
3408
3409 // Add spacing around `target_bounds` and `max_target_bounds`.
3410 let mut extend_amount = Edges::all(MENU_GAP);
3411 if y_flipped {
3412 extend_amount.bottom = line_height;
3413 } else {
3414 extend_amount.top = line_height;
3415 }
3416 let target_bounds = target_bounds.extend(extend_amount);
3417 let max_target_bounds = max_target_bounds.extend(extend_amount);
3418
3419 let must_place_above_or_below =
3420 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3421 laid_out_popovers[menu_ix + 1..]
3422 .iter()
3423 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3424 } else {
3425 false
3426 };
3427
3428 self.layout_context_menu_aside(
3429 y_flipped,
3430 *menu_bounds,
3431 target_bounds,
3432 max_target_bounds,
3433 max_menu_height,
3434 must_place_above_or_below,
3435 text_hitbox,
3436 viewport_bounds,
3437 window,
3438 cx,
3439 );
3440 }
3441
3442 #[allow(clippy::too_many_arguments)]
3443 fn layout_gutter_menu(
3444 &self,
3445 line_height: Pixels,
3446 text_hitbox: &Hitbox,
3447 content_origin: gpui::Point<Pixels>,
3448 scroll_pixel_position: gpui::Point<Pixels>,
3449 gutter_overshoot: Pixels,
3450 window: &mut Window,
3451 cx: &mut App,
3452 ) {
3453 let editor = self.editor.read(cx);
3454 if !editor.context_menu_visible() {
3455 return;
3456 }
3457 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3458 editor.context_menu_origin()
3459 else {
3460 return;
3461 };
3462 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3463 // indicator than just a plain first column of the text field.
3464 let target_position = content_origin
3465 + gpui::Point {
3466 x: -gutter_overshoot,
3467 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3468 };
3469 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3470 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3471 let viewport_bounds =
3472 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3473 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3474 ..Default::default()
3475 });
3476 self.layout_popovers_above_or_below_line(
3477 target_position,
3478 line_height,
3479 min_height,
3480 max_height,
3481 text_hitbox,
3482 viewport_bounds,
3483 window,
3484 cx,
3485 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3486 let mut element = self
3487 .render_context_menu(line_height, height, y_flipped, window, cx)
3488 .expect("Visible context menu should always render.");
3489 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3490 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3491 },
3492 );
3493 }
3494
3495 #[allow(clippy::too_many_arguments)]
3496 fn layout_popovers_above_or_below_line(
3497 &self,
3498 target_position: gpui::Point<Pixels>,
3499 line_height: Pixels,
3500 min_height: Pixels,
3501 max_height: Pixels,
3502 text_hitbox: &Hitbox,
3503 viewport_bounds: Bounds<Pixels>,
3504 window: &mut Window,
3505 cx: &mut App,
3506 make_sized_popovers: impl FnOnce(
3507 Pixels,
3508 Pixels,
3509 bool,
3510 &mut Window,
3511 &mut App,
3512 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3513 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3514 let text_style = TextStyleRefinement {
3515 line_height: Some(DefiniteLength::Fraction(
3516 BufferLineHeight::Comfortable.value(),
3517 )),
3518 ..Default::default()
3519 };
3520 window.with_text_style(Some(text_style), |window| {
3521 // If the max height won't fit below and there is more space above, put it above the line.
3522 let bottom_y_when_flipped = target_position.y - line_height;
3523 let available_above = bottom_y_when_flipped - text_hitbox.top();
3524 let available_below = text_hitbox.bottom() - target_position.y;
3525 let y_overflows_below = max_height > available_below;
3526 let mut y_flipped = y_overflows_below && available_above > available_below;
3527 let mut height = cmp::min(
3528 max_height,
3529 if y_flipped {
3530 available_above
3531 } else {
3532 available_below
3533 },
3534 );
3535
3536 // If the min height doesn't fit within text bounds, instead fit within the window.
3537 if height < min_height {
3538 let available_above = bottom_y_when_flipped;
3539 let available_below = viewport_bounds.bottom() - target_position.y;
3540 if available_below > min_height {
3541 y_flipped = false;
3542 height = min_height;
3543 } else if available_above > min_height {
3544 y_flipped = true;
3545 height = min_height;
3546 } else if available_above > available_below {
3547 y_flipped = true;
3548 height = available_above;
3549 } else {
3550 y_flipped = false;
3551 height = available_below;
3552 }
3553 }
3554
3555 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3556
3557 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3558 // for very narrow windows.
3559 let popovers =
3560 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3561 if popovers.is_empty() {
3562 return None;
3563 }
3564
3565 let max_width = popovers
3566 .iter()
3567 .map(|(_, _, size)| size.width)
3568 .max()
3569 .unwrap_or_default();
3570
3571 let mut current_position = gpui::Point {
3572 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3573 // overflow. Include space for the scrollbar.
3574 x: target_position
3575 .x
3576 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3577 y: if y_flipped {
3578 bottom_y_when_flipped
3579 } else {
3580 target_position.y
3581 },
3582 };
3583
3584 let mut laid_out_popovers = popovers
3585 .into_iter()
3586 .map(|(popover_type, element, size)| {
3587 if y_flipped {
3588 current_position.y -= size.height;
3589 }
3590 let position = current_position;
3591 window.defer_draw(element, current_position, 1);
3592 if !y_flipped {
3593 current_position.y += size.height + MENU_GAP;
3594 } else {
3595 current_position.y -= MENU_GAP;
3596 }
3597 (popover_type, Bounds::new(position, size))
3598 })
3599 .collect::<Vec<_>>();
3600
3601 if y_flipped {
3602 laid_out_popovers.reverse();
3603 }
3604
3605 Some((laid_out_popovers, y_flipped))
3606 })
3607 }
3608
3609 #[allow(clippy::too_many_arguments)]
3610 fn layout_context_menu_aside(
3611 &self,
3612 y_flipped: bool,
3613 menu_bounds: Bounds<Pixels>,
3614 target_bounds: Bounds<Pixels>,
3615 max_target_bounds: Bounds<Pixels>,
3616 max_height: Pixels,
3617 must_place_above_or_below: bool,
3618 text_hitbox: &Hitbox,
3619 viewport_bounds: Bounds<Pixels>,
3620 window: &mut Window,
3621 cx: &mut App,
3622 ) {
3623 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3624 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3625 && !must_place_above_or_below
3626 {
3627 let max_width = cmp::min(
3628 available_within_viewport.right - px(1.),
3629 MENU_ASIDE_MAX_WIDTH,
3630 );
3631 let Some(mut aside) = self.render_context_menu_aside(
3632 size(max_width, max_height - POPOVER_Y_PADDING),
3633 window,
3634 cx,
3635 ) else {
3636 return;
3637 };
3638 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3639 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3640 Some((aside, right_position))
3641 } else {
3642 let max_size = size(
3643 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3644 // won't be needed here.
3645 cmp::min(
3646 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3647 viewport_bounds.right(),
3648 ),
3649 cmp::min(
3650 max_height,
3651 cmp::max(
3652 available_within_viewport.top,
3653 available_within_viewport.bottom,
3654 ),
3655 ) - POPOVER_Y_PADDING,
3656 );
3657 let Some(mut aside) = self.render_context_menu_aside(max_size, window, cx) else {
3658 return;
3659 };
3660 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3661
3662 let top_position = point(
3663 menu_bounds.origin.x,
3664 target_bounds.top() - actual_size.height,
3665 );
3666 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3667
3668 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3669 // Prefer to fit on the same side of the line as the menu, then on the other side of
3670 // the line.
3671 if !y_flipped && wanted.height < available.bottom {
3672 Some(bottom_position)
3673 } else if !y_flipped && wanted.height < available.top {
3674 Some(top_position)
3675 } else if y_flipped && wanted.height < available.top {
3676 Some(top_position)
3677 } else if y_flipped && wanted.height < available.bottom {
3678 Some(bottom_position)
3679 } else {
3680 None
3681 }
3682 };
3683
3684 // Prefer choosing a direction using max sizes rather than actual size for stability.
3685 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3686 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3687 let aside_position = fit_within(available_within_text, wanted)
3688 // Fallback: fit max size in window.
3689 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3690 // Fallback: fit actual size in window.
3691 .or_else(|| fit_within(available_within_viewport, actual_size));
3692
3693 aside_position.map(|position| (aside, position))
3694 };
3695
3696 // Skip drawing if it doesn't fit anywhere.
3697 if let Some((aside, position)) = positioned_aside {
3698 window.defer_draw(aside, position, 2);
3699 }
3700 }
3701
3702 fn render_context_menu(
3703 &self,
3704 line_height: Pixels,
3705 height: Pixels,
3706 y_flipped: bool,
3707 window: &mut Window,
3708 cx: &mut App,
3709 ) -> Option<AnyElement> {
3710 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3711 self.editor.update(cx, |editor, cx| {
3712 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3713 })
3714 }
3715
3716 fn render_context_menu_aside(
3717 &self,
3718 max_size: Size<Pixels>,
3719 window: &mut Window,
3720 cx: &mut App,
3721 ) -> Option<AnyElement> {
3722 if max_size.width < px(100.) || max_size.height < px(12.) {
3723 None
3724 } else {
3725 self.editor.update(cx, |editor, cx| {
3726 editor.render_context_menu_aside(max_size, window, cx)
3727 })
3728 }
3729 }
3730
3731 fn layout_mouse_context_menu(
3732 &self,
3733 editor_snapshot: &EditorSnapshot,
3734 visible_range: Range<DisplayRow>,
3735 content_origin: gpui::Point<Pixels>,
3736 window: &mut Window,
3737 cx: &mut App,
3738 ) -> Option<AnyElement> {
3739 let position = self.editor.update(cx, |editor, _cx| {
3740 let visible_start_point = editor.display_to_pixel_point(
3741 DisplayPoint::new(visible_range.start, 0),
3742 editor_snapshot,
3743 window,
3744 )?;
3745 let visible_end_point = editor.display_to_pixel_point(
3746 DisplayPoint::new(visible_range.end, 0),
3747 editor_snapshot,
3748 window,
3749 )?;
3750
3751 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3752 let (source_display_point, position) = match mouse_context_menu.position {
3753 MenuPosition::PinnedToScreen(point) => (None, point),
3754 MenuPosition::PinnedToEditor { source, offset } => {
3755 let source_display_point = source.to_display_point(editor_snapshot);
3756 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3757 let position = content_origin + source_point + offset;
3758 (Some(source_display_point), position)
3759 }
3760 };
3761
3762 let source_included = source_display_point.map_or(true, |source_display_point| {
3763 visible_range
3764 .to_inclusive()
3765 .contains(&source_display_point.row())
3766 });
3767 let position_included =
3768 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3769 if !source_included && !position_included {
3770 None
3771 } else {
3772 Some(position)
3773 }
3774 })?;
3775
3776 let text_style = TextStyleRefinement {
3777 line_height: Some(DefiniteLength::Fraction(
3778 BufferLineHeight::Comfortable.value(),
3779 )),
3780 ..Default::default()
3781 };
3782 window.with_text_style(Some(text_style), |window| {
3783 let mut element = self.editor.update(cx, |editor, _| {
3784 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3785 let context_menu = mouse_context_menu.context_menu.clone();
3786
3787 Some(
3788 deferred(
3789 anchored()
3790 .position(position)
3791 .child(context_menu)
3792 .anchor(Corner::TopLeft)
3793 .snap_to_window_with_margin(px(8.)),
3794 )
3795 .with_priority(1)
3796 .into_any(),
3797 )
3798 })?;
3799
3800 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3801 Some(element)
3802 })
3803 }
3804
3805 #[allow(clippy::too_many_arguments)]
3806 fn layout_hover_popovers(
3807 &self,
3808 snapshot: &EditorSnapshot,
3809 hitbox: &Hitbox,
3810 text_hitbox: &Hitbox,
3811 visible_display_row_range: Range<DisplayRow>,
3812 content_origin: gpui::Point<Pixels>,
3813 scroll_pixel_position: gpui::Point<Pixels>,
3814 line_layouts: &[LineWithInvisibles],
3815 line_height: Pixels,
3816 em_width: Pixels,
3817 window: &mut Window,
3818 cx: &mut App,
3819 ) {
3820 struct MeasuredHoverPopover {
3821 element: AnyElement,
3822 size: Size<Pixels>,
3823 horizontal_offset: Pixels,
3824 }
3825
3826 let max_size = size(
3827 (120. * em_width) // Default size
3828 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3829 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3830 (16. * line_height) // Default size
3831 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3832 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3833 );
3834
3835 let hover_popovers = self.editor.update(cx, |editor, cx| {
3836 editor
3837 .hover_state
3838 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3839 });
3840 let Some((position, hover_popovers)) = hover_popovers else {
3841 return;
3842 };
3843
3844 // This is safe because we check on layout whether the required row is available
3845 let hovered_row_layout =
3846 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3847
3848 // Compute Hovered Point
3849 let x =
3850 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3851 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3852 let hovered_point = content_origin + point(x, y);
3853
3854 let mut overall_height = Pixels::ZERO;
3855 let mut measured_hover_popovers = Vec::new();
3856 for mut hover_popover in hover_popovers {
3857 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3858 let horizontal_offset =
3859 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3860
3861 overall_height += HOVER_POPOVER_GAP + size.height;
3862
3863 measured_hover_popovers.push(MeasuredHoverPopover {
3864 element: hover_popover,
3865 size,
3866 horizontal_offset,
3867 });
3868 }
3869 overall_height += HOVER_POPOVER_GAP;
3870
3871 fn draw_occluder(
3872 width: Pixels,
3873 origin: gpui::Point<Pixels>,
3874 window: &mut Window,
3875 cx: &mut App,
3876 ) {
3877 let mut occlusion = div()
3878 .size_full()
3879 .occlude()
3880 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3881 .into_any_element();
3882 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3883 window.defer_draw(occlusion, origin, 2);
3884 }
3885
3886 if hovered_point.y > overall_height {
3887 // There is enough space above. Render popovers above the hovered point
3888 let mut current_y = hovered_point.y;
3889 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3890 let size = popover.size;
3891 let popover_origin = point(
3892 hovered_point.x + popover.horizontal_offset,
3893 current_y - size.height,
3894 );
3895
3896 window.defer_draw(popover.element, popover_origin, 2);
3897 if position != itertools::Position::Last {
3898 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3899 draw_occluder(size.width, origin, window, cx);
3900 }
3901
3902 current_y = popover_origin.y - HOVER_POPOVER_GAP;
3903 }
3904 } else {
3905 // There is not enough space above. Render popovers below the hovered point
3906 let mut current_y = hovered_point.y + line_height;
3907 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3908 let size = popover.size;
3909 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
3910
3911 window.defer_draw(popover.element, popover_origin, 2);
3912 if position != itertools::Position::Last {
3913 let origin = point(popover_origin.x, popover_origin.y + size.height);
3914 draw_occluder(size.width, origin, window, cx);
3915 }
3916
3917 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
3918 }
3919 }
3920 }
3921
3922 #[allow(clippy::too_many_arguments)]
3923 fn layout_diff_hunk_controls(
3924 &self,
3925 row_range: Range<DisplayRow>,
3926 row_infos: &[RowInfo],
3927 text_hitbox: &Hitbox,
3928 position_map: &PositionMap,
3929 newest_cursor_position: Option<DisplayPoint>,
3930 line_height: Pixels,
3931 scroll_pixel_position: gpui::Point<Pixels>,
3932 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
3933 editor: Entity<Editor>,
3934 window: &mut Window,
3935 cx: &mut App,
3936 ) -> Vec<AnyElement> {
3937 let point_for_position = position_map.point_for_position(window.mouse_position());
3938
3939 let mut controls = vec![];
3940
3941 let active_positions = [
3942 Some(point_for_position.previous_valid),
3943 newest_cursor_position,
3944 ];
3945
3946 for (hunk, _) in display_hunks {
3947 if let DisplayDiffHunk::Unfolded {
3948 display_row_range,
3949 multi_buffer_range,
3950 status,
3951 is_created_file,
3952 ..
3953 } = &hunk
3954 {
3955 if display_row_range.start < row_range.start
3956 || display_row_range.start >= row_range.end
3957 {
3958 continue;
3959 }
3960 let row_ix = (display_row_range.start - row_range.start).0 as usize;
3961 if row_infos[row_ix].diff_status.is_none() {
3962 continue;
3963 }
3964 if row_infos[row_ix]
3965 .diff_status
3966 .is_some_and(|status| status.is_added())
3967 && !status.is_added()
3968 {
3969 continue;
3970 }
3971 if active_positions
3972 .iter()
3973 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
3974 {
3975 let y = display_row_range.start.as_f32() * line_height
3976 + text_hitbox.bounds.top()
3977 - scroll_pixel_position.y;
3978
3979 let mut element = diff_hunk_controls(
3980 display_row_range.start.0,
3981 status,
3982 multi_buffer_range.clone(),
3983 *is_created_file,
3984 line_height,
3985 &editor,
3986 cx,
3987 );
3988 let size =
3989 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
3990
3991 let x = text_hitbox.bounds.right()
3992 - self.style.scrollbar_width
3993 - px(10.)
3994 - size.width;
3995
3996 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
3997 element.prepaint(window, cx)
3998 });
3999 controls.push(element);
4000 }
4001 }
4002 }
4003
4004 controls
4005 }
4006
4007 #[allow(clippy::too_many_arguments)]
4008 fn layout_signature_help(
4009 &self,
4010 hitbox: &Hitbox,
4011 content_origin: gpui::Point<Pixels>,
4012 scroll_pixel_position: gpui::Point<Pixels>,
4013 newest_selection_head: Option<DisplayPoint>,
4014 start_row: DisplayRow,
4015 line_layouts: &[LineWithInvisibles],
4016 line_height: Pixels,
4017 em_width: Pixels,
4018 window: &mut Window,
4019 cx: &mut App,
4020 ) {
4021 if !self.editor.focus_handle(cx).is_focused(window) {
4022 return;
4023 }
4024 let Some(newest_selection_head) = newest_selection_head else {
4025 return;
4026 };
4027 let selection_row = newest_selection_head.row();
4028 if selection_row < start_row {
4029 return;
4030 }
4031 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4032 else {
4033 return;
4034 };
4035
4036 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4037 - scroll_pixel_position.x
4038 + content_origin.x;
4039 let start_y =
4040 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4041
4042 let max_size = size(
4043 (120. * em_width) // Default size
4044 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4045 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4046 (16. * line_height) // Default size
4047 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4048 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4049 );
4050
4051 let maybe_element = self.editor.update(cx, |editor, cx| {
4052 if let Some(popover) = editor.signature_help_state.popover_mut() {
4053 let element = popover.render(max_size, cx);
4054 Some(element)
4055 } else {
4056 None
4057 }
4058 });
4059 if let Some(mut element) = maybe_element {
4060 let window_size = window.viewport_size();
4061 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4062 let mut point = point(start_x, start_y - size.height);
4063
4064 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4065 if point.x + size.width >= window_size.width {
4066 point.x = window_size.width - size.width;
4067 }
4068
4069 window.defer_draw(element, point, 1)
4070 }
4071 }
4072
4073 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4074 window.paint_layer(layout.hitbox.bounds, |window| {
4075 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4076 let gutter_bg = cx.theme().colors().editor_gutter_background;
4077 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4078 window.paint_quad(fill(
4079 layout.position_map.text_hitbox.bounds,
4080 self.style.background,
4081 ));
4082
4083 if let EditorMode::Full = layout.mode {
4084 let mut active_rows = layout.active_rows.iter().peekable();
4085 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4086 let mut end_row = start_row.0;
4087 while active_rows
4088 .peek()
4089 .map_or(false, |(active_row, has_selection)| {
4090 active_row.0 == end_row + 1
4091 && *has_selection == contains_non_empty_selection
4092 })
4093 {
4094 active_rows.next().unwrap();
4095 end_row += 1;
4096 }
4097
4098 if !contains_non_empty_selection {
4099 let highlight_h_range =
4100 match layout.position_map.snapshot.current_line_highlight {
4101 CurrentLineHighlight::Gutter => Some(Range {
4102 start: layout.hitbox.left(),
4103 end: layout.gutter_hitbox.right(),
4104 }),
4105 CurrentLineHighlight::Line => Some(Range {
4106 start: layout.position_map.text_hitbox.bounds.left(),
4107 end: layout.position_map.text_hitbox.bounds.right(),
4108 }),
4109 CurrentLineHighlight::All => Some(Range {
4110 start: layout.hitbox.left(),
4111 end: layout.hitbox.right(),
4112 }),
4113 CurrentLineHighlight::None => None,
4114 };
4115 if let Some(range) = highlight_h_range {
4116 let active_line_bg = cx.theme().colors().editor_active_line_background;
4117 let bounds = Bounds {
4118 origin: point(
4119 range.start,
4120 layout.hitbox.origin.y
4121 + (start_row.as_f32() - scroll_top)
4122 * layout.position_map.line_height,
4123 ),
4124 size: size(
4125 range.end - range.start,
4126 layout.position_map.line_height
4127 * (end_row - start_row.0 + 1) as f32,
4128 ),
4129 };
4130 window.paint_quad(fill(bounds, active_line_bg));
4131 }
4132 }
4133 }
4134
4135 let mut paint_highlight = |highlight_row_start: DisplayRow,
4136 highlight_row_end: DisplayRow,
4137 highlight: crate::LineHighlight,
4138 edges| {
4139 let origin = point(
4140 layout.hitbox.origin.x,
4141 layout.hitbox.origin.y
4142 + (highlight_row_start.as_f32() - scroll_top)
4143 * layout.position_map.line_height,
4144 );
4145 let size = size(
4146 layout.hitbox.size.width,
4147 layout.position_map.line_height
4148 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4149 );
4150 let mut quad = fill(Bounds { origin, size }, highlight.background);
4151 if let Some(border_color) = highlight.border {
4152 quad.border_color = border_color;
4153 quad.border_widths = edges
4154 }
4155 window.paint_quad(quad);
4156 };
4157
4158 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
4159 None;
4160 for (&new_row, &new_background) in &layout.highlighted_rows {
4161 match &mut current_paint {
4162 Some((current_background, current_range, mut edges)) => {
4163 let current_background = *current_background;
4164 let new_range_started = current_background != new_background
4165 || current_range.end.next_row() != new_row;
4166 if new_range_started {
4167 if current_range.end.next_row() == new_row {
4168 edges.bottom = px(0.);
4169 };
4170 paint_highlight(
4171 current_range.start,
4172 current_range.end,
4173 current_background,
4174 edges,
4175 );
4176 let edges = Edges {
4177 top: if current_range.end.next_row() != new_row {
4178 px(1.)
4179 } else {
4180 px(0.)
4181 },
4182 bottom: px(1.),
4183 ..Default::default()
4184 };
4185 current_paint = Some((new_background, new_row..new_row, edges));
4186 continue;
4187 } else {
4188 current_range.end = current_range.end.next_row();
4189 }
4190 }
4191 None => {
4192 let edges = Edges {
4193 top: px(1.),
4194 bottom: px(1.),
4195 ..Default::default()
4196 };
4197 current_paint = Some((new_background, new_row..new_row, edges))
4198 }
4199 };
4200 }
4201 if let Some((color, range, edges)) = current_paint {
4202 paint_highlight(range.start, range.end, color, edges);
4203 }
4204
4205 let scroll_left =
4206 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4207
4208 for (wrap_position, active) in layout.wrap_guides.iter() {
4209 let x = (layout.position_map.text_hitbox.origin.x
4210 + *wrap_position
4211 + layout.position_map.em_width / 2.)
4212 - scroll_left;
4213
4214 let show_scrollbars = {
4215 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4216
4217 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4218 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4219 };
4220
4221 if x < layout.position_map.text_hitbox.origin.x
4222 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4223 {
4224 continue;
4225 }
4226
4227 let color = if *active {
4228 cx.theme().colors().editor_active_wrap_guide
4229 } else {
4230 cx.theme().colors().editor_wrap_guide
4231 };
4232 window.paint_quad(fill(
4233 Bounds {
4234 origin: point(x, layout.position_map.text_hitbox.origin.y),
4235 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4236 },
4237 color,
4238 ));
4239 }
4240 }
4241 })
4242 }
4243
4244 fn paint_indent_guides(
4245 &mut self,
4246 layout: &mut EditorLayout,
4247 window: &mut Window,
4248 cx: &mut App,
4249 ) {
4250 let Some(indent_guides) = &layout.indent_guides else {
4251 return;
4252 };
4253
4254 let faded_color = |color: Hsla, alpha: f32| {
4255 let mut faded = color;
4256 faded.a = alpha;
4257 faded
4258 };
4259
4260 for indent_guide in indent_guides {
4261 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4262 let settings = indent_guide.settings;
4263
4264 // TODO fixed for now, expose them through themes later
4265 const INDENT_AWARE_ALPHA: f32 = 0.2;
4266 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4267 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4268 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4269
4270 let line_color = match (settings.coloring, indent_guide.active) {
4271 (IndentGuideColoring::Disabled, _) => None,
4272 (IndentGuideColoring::Fixed, false) => {
4273 Some(cx.theme().colors().editor_indent_guide)
4274 }
4275 (IndentGuideColoring::Fixed, true) => {
4276 Some(cx.theme().colors().editor_indent_guide_active)
4277 }
4278 (IndentGuideColoring::IndentAware, false) => {
4279 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4280 }
4281 (IndentGuideColoring::IndentAware, true) => {
4282 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4283 }
4284 };
4285
4286 let background_color = match (settings.background_coloring, indent_guide.active) {
4287 (IndentGuideBackgroundColoring::Disabled, _) => None,
4288 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4289 indent_accent_colors,
4290 INDENT_AWARE_BACKGROUND_ALPHA,
4291 )),
4292 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4293 indent_accent_colors,
4294 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4295 )),
4296 };
4297
4298 let requested_line_width = if indent_guide.active {
4299 settings.active_line_width
4300 } else {
4301 settings.line_width
4302 }
4303 .clamp(1, 10);
4304 let mut line_indicator_width = 0.;
4305 if let Some(color) = line_color {
4306 window.paint_quad(fill(
4307 Bounds {
4308 origin: indent_guide.origin,
4309 size: size(px(requested_line_width as f32), indent_guide.length),
4310 },
4311 color,
4312 ));
4313 line_indicator_width = requested_line_width as f32;
4314 }
4315
4316 if let Some(color) = background_color {
4317 let width = indent_guide.single_indent_width - px(line_indicator_width);
4318 window.paint_quad(fill(
4319 Bounds {
4320 origin: point(
4321 indent_guide.origin.x + px(line_indicator_width),
4322 indent_guide.origin.y,
4323 ),
4324 size: size(width, indent_guide.length),
4325 },
4326 color,
4327 ));
4328 }
4329 }
4330 }
4331
4332 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4333 let is_singleton = self.editor.read(cx).is_singleton(cx);
4334
4335 let line_height = layout.position_map.line_height;
4336 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4337
4338 for LineNumberLayout {
4339 shaped_line,
4340 hitbox,
4341 display_row,
4342 } in layout.line_numbers.values()
4343 {
4344 let Some(hitbox) = hitbox else {
4345 continue;
4346 };
4347
4348 let is_active = layout.active_rows.contains_key(&display_row);
4349
4350 let color = if is_active {
4351 cx.theme().colors().editor_active_line_number
4352 } else if !is_singleton && hitbox.is_hovered(window) {
4353 cx.theme().colors().editor_hover_line_number
4354 } else {
4355 cx.theme().colors().editor_line_number
4356 };
4357
4358 let Some(line) = self
4359 .shape_line_number(shaped_line.text.clone(), color, window)
4360 .log_err()
4361 else {
4362 continue;
4363 };
4364 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4365 continue;
4366 };
4367 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4368 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4369 if is_singleton {
4370 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4371 } else {
4372 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4373 }
4374 }
4375 }
4376
4377 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4378 let is_light = cx.theme().appearance().is_light();
4379
4380 let hunk_style = ProjectSettings::get_global(cx)
4381 .git
4382 .hunk_style
4383 .unwrap_or_default();
4384
4385 if layout.display_hunks.is_empty() {
4386 return;
4387 }
4388
4389 let line_height = layout.position_map.line_height;
4390 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4391 for (hunk, hitbox) in &layout.display_hunks {
4392 let hunk_to_paint = match hunk {
4393 DisplayDiffHunk::Folded { .. } => {
4394 let hunk_bounds = Self::diff_hunk_bounds(
4395 &layout.position_map.snapshot,
4396 line_height,
4397 layout.gutter_hitbox.bounds,
4398 hunk,
4399 );
4400 Some((
4401 hunk_bounds,
4402 cx.theme().colors().version_control_modified,
4403 Corners::all(px(0.)),
4404 DiffHunkStatus::modified_none(),
4405 ))
4406 }
4407 DisplayDiffHunk::Unfolded {
4408 status,
4409 display_row_range,
4410 ..
4411 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
4412 DiffHunkStatusKind::Added => (
4413 hunk_hitbox.bounds,
4414 cx.theme().colors().version_control_added,
4415 Corners::all(px(0.)),
4416 *status,
4417 ),
4418 DiffHunkStatusKind::Modified => (
4419 hunk_hitbox.bounds,
4420 cx.theme().colors().version_control_modified,
4421 Corners::all(px(0.)),
4422 *status,
4423 ),
4424 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
4425 hunk_hitbox.bounds,
4426 cx.theme().colors().version_control_deleted,
4427 Corners::all(px(0.)),
4428 *status,
4429 ),
4430 DiffHunkStatusKind::Deleted => (
4431 Bounds::new(
4432 point(
4433 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4434 hunk_hitbox.origin.y,
4435 ),
4436 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4437 ),
4438 cx.theme().colors().version_control_deleted,
4439 Corners::all(1. * line_height),
4440 *status,
4441 ),
4442 }),
4443 };
4444
4445 if let Some((hunk_bounds, mut background_color, corner_radii, secondary_status)) =
4446 hunk_to_paint
4447 {
4448 match hunk_style {
4449 GitHunkStyleSetting::Transparent | GitHunkStyleSetting::Pattern => {
4450 if secondary_status.has_secondary_hunk() {
4451 background_color =
4452 background_color.opacity(if is_light { 0.2 } else { 0.32 });
4453 }
4454 }
4455 GitHunkStyleSetting::StagedPattern
4456 | GitHunkStyleSetting::StagedTransparent => {
4457 if !secondary_status.has_secondary_hunk() {
4458 background_color =
4459 background_color.opacity(if is_light { 0.2 } else { 0.32 });
4460 }
4461 }
4462 GitHunkStyleSetting::StagedBorder | GitHunkStyleSetting::Border => {
4463 // Don't change the background color
4464 }
4465 }
4466
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 window.paint_quad(quad(
4476 hunk_bounds,
4477 corner_radii,
4478 flattened_background_color,
4479 Edges::default(),
4480 transparent_black(),
4481 ));
4482 }
4483 }
4484 });
4485 }
4486
4487 fn diff_hunk_bounds(
4488 snapshot: &EditorSnapshot,
4489 line_height: Pixels,
4490 gutter_bounds: Bounds<Pixels>,
4491 hunk: &DisplayDiffHunk,
4492 ) -> Bounds<Pixels> {
4493 let scroll_position = snapshot.scroll_position();
4494 let scroll_top = scroll_position.y * line_height;
4495 let gutter_strip_width = (0.275 * line_height).floor();
4496
4497 match hunk {
4498 DisplayDiffHunk::Folded { display_row, .. } => {
4499 let start_y = display_row.as_f32() * line_height - scroll_top;
4500 let end_y = start_y + line_height;
4501 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4502 let highlight_size = size(gutter_strip_width, end_y - start_y);
4503 Bounds::new(highlight_origin, highlight_size)
4504 }
4505 DisplayDiffHunk::Unfolded {
4506 display_row_range,
4507 status,
4508 ..
4509 } => {
4510 if status.is_deleted() && display_row_range.is_empty() {
4511 let row = display_row_range.start;
4512
4513 let offset = line_height / 2.;
4514 let start_y = row.as_f32() * line_height - offset - scroll_top;
4515 let end_y = start_y + line_height;
4516
4517 let width = (0.35 * line_height).floor();
4518 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4519 let highlight_size = size(width, end_y - start_y);
4520 Bounds::new(highlight_origin, highlight_size)
4521 } else {
4522 let start_row = display_row_range.start;
4523 let end_row = display_row_range.end;
4524 // If we're in a multibuffer, row range span might include an
4525 // excerpt header, so if we were to draw the marker straight away,
4526 // the hunk might include the rows of that header.
4527 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4528 // Instead, we simply check whether the range we're dealing with includes
4529 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4530 let end_row_in_current_excerpt = snapshot
4531 .blocks_in_range(start_row..end_row)
4532 .find_map(|(start_row, block)| {
4533 if matches!(block, Block::ExcerptBoundary { .. }) {
4534 Some(start_row)
4535 } else {
4536 None
4537 }
4538 })
4539 .unwrap_or(end_row);
4540
4541 let start_y = start_row.as_f32() * line_height - scroll_top;
4542 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4543
4544 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4545 let highlight_size = size(gutter_strip_width, end_y - start_y);
4546 Bounds::new(highlight_origin, highlight_size)
4547 }
4548 }
4549 }
4550 }
4551
4552 fn paint_gutter_indicators(
4553 &self,
4554 layout: &mut EditorLayout,
4555 window: &mut Window,
4556 cx: &mut App,
4557 ) {
4558 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4559 window.with_element_namespace("crease_toggles", |window| {
4560 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4561 crease_toggle.paint(window, cx);
4562 }
4563 });
4564
4565 for test_indicator in layout.test_indicators.iter_mut() {
4566 test_indicator.paint(window, cx);
4567 }
4568
4569 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4570 indicator.paint(window, cx);
4571 }
4572 });
4573 }
4574
4575 fn paint_gutter_highlights(
4576 &self,
4577 layout: &mut EditorLayout,
4578 window: &mut Window,
4579 cx: &mut App,
4580 ) {
4581 for (_, hunk_hitbox) in &layout.display_hunks {
4582 if let Some(hunk_hitbox) = hunk_hitbox {
4583 if !self
4584 .editor
4585 .read(cx)
4586 .buffer()
4587 .read(cx)
4588 .all_diff_hunks_expanded()
4589 {
4590 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4591 }
4592 }
4593 }
4594
4595 let show_git_gutter = layout
4596 .position_map
4597 .snapshot
4598 .show_git_diff_gutter
4599 .unwrap_or_else(|| {
4600 matches!(
4601 ProjectSettings::get_global(cx).git.git_gutter,
4602 Some(GitGutterSetting::TrackedFiles)
4603 )
4604 });
4605 if show_git_gutter {
4606 Self::paint_gutter_diff_hunks(layout, window, cx)
4607 }
4608
4609 let highlight_width = 0.275 * layout.position_map.line_height;
4610 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4611 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4612 for (range, color) in &layout.highlighted_gutter_ranges {
4613 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4614 layout.visible_display_row_range.start - DisplayRow(1)
4615 } else {
4616 range.start.row()
4617 };
4618 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4619 layout.visible_display_row_range.end + DisplayRow(1)
4620 } else {
4621 range.end.row()
4622 };
4623
4624 let start_y = layout.gutter_hitbox.top()
4625 + start_row.0 as f32 * layout.position_map.line_height
4626 - layout.position_map.scroll_pixel_position.y;
4627 let end_y = layout.gutter_hitbox.top()
4628 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4629 - layout.position_map.scroll_pixel_position.y;
4630 let bounds = Bounds::from_corners(
4631 point(layout.gutter_hitbox.left(), start_y),
4632 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4633 );
4634 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4635 }
4636 });
4637 }
4638
4639 fn paint_blamed_display_rows(
4640 &self,
4641 layout: &mut EditorLayout,
4642 window: &mut Window,
4643 cx: &mut App,
4644 ) {
4645 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4646 return;
4647 };
4648
4649 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4650 for mut blame_element in blamed_display_rows.into_iter() {
4651 blame_element.paint(window, cx);
4652 }
4653 })
4654 }
4655
4656 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4657 window.with_content_mask(
4658 Some(ContentMask {
4659 bounds: layout.position_map.text_hitbox.bounds,
4660 }),
4661 |window| {
4662 let cursor_style = if self
4663 .editor
4664 .read(cx)
4665 .hovered_link_state
4666 .as_ref()
4667 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4668 {
4669 CursorStyle::PointingHand
4670 } else {
4671 CursorStyle::IBeam
4672 };
4673 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4674
4675 let invisible_display_ranges = self.paint_highlights(layout, window);
4676 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4677 self.paint_redactions(layout, window);
4678 self.paint_cursors(layout, window, cx);
4679 self.paint_inline_diagnostics(layout, window, cx);
4680 self.paint_inline_blame(layout, window, cx);
4681 self.paint_diff_hunk_controls(layout, window, cx);
4682 window.with_element_namespace("crease_trailers", |window| {
4683 for trailer in layout.crease_trailers.iter_mut().flatten() {
4684 trailer.element.paint(window, cx);
4685 }
4686 });
4687 },
4688 )
4689 }
4690
4691 fn paint_highlights(
4692 &mut self,
4693 layout: &mut EditorLayout,
4694 window: &mut Window,
4695 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4696 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4697 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4698 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4699 for (range, color) in &layout.highlighted_ranges {
4700 self.paint_highlighted_range(
4701 range.clone(),
4702 *color,
4703 Pixels::ZERO,
4704 line_end_overshoot,
4705 layout,
4706 window,
4707 );
4708 }
4709
4710 let corner_radius = 0.15 * layout.position_map.line_height;
4711
4712 for (player_color, selections) in &layout.selections {
4713 for selection in selections.iter() {
4714 self.paint_highlighted_range(
4715 selection.range.clone(),
4716 player_color.selection,
4717 corner_radius,
4718 corner_radius * 2.,
4719 layout,
4720 window,
4721 );
4722
4723 if selection.is_local && !selection.range.is_empty() {
4724 invisible_display_ranges.push(selection.range.clone());
4725 }
4726 }
4727 }
4728 invisible_display_ranges
4729 })
4730 }
4731
4732 fn paint_lines(
4733 &mut self,
4734 invisible_display_ranges: &[Range<DisplayPoint>],
4735 layout: &mut EditorLayout,
4736 window: &mut Window,
4737 cx: &mut App,
4738 ) {
4739 let whitespace_setting = self
4740 .editor
4741 .read(cx)
4742 .buffer
4743 .read(cx)
4744 .language_settings(cx)
4745 .show_whitespaces;
4746
4747 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4748 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4749 line_with_invisibles.draw(
4750 layout,
4751 row,
4752 layout.content_origin,
4753 whitespace_setting,
4754 invisible_display_ranges,
4755 window,
4756 cx,
4757 )
4758 }
4759
4760 for line_element in &mut layout.line_elements {
4761 line_element.paint(window, cx);
4762 }
4763 }
4764
4765 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4766 if layout.redacted_ranges.is_empty() {
4767 return;
4768 }
4769
4770 let line_end_overshoot = layout.line_end_overshoot();
4771
4772 // A softer than perfect black
4773 let redaction_color = gpui::rgb(0x0e1111);
4774
4775 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4776 for range in layout.redacted_ranges.iter() {
4777 self.paint_highlighted_range(
4778 range.clone(),
4779 redaction_color.into(),
4780 Pixels::ZERO,
4781 line_end_overshoot,
4782 layout,
4783 window,
4784 );
4785 }
4786 });
4787 }
4788
4789 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4790 for cursor in &mut layout.visible_cursors {
4791 cursor.paint(layout.content_origin, window, cx);
4792 }
4793 }
4794
4795 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4796 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4797
4798 if let Some(scrollbar_layout) = scrollbar_x {
4799 let hitbox = scrollbar_layout.hitbox.clone();
4800 let text_unit_size = scrollbar_layout.text_unit_size;
4801 let visible_range = scrollbar_layout.visible_range.clone();
4802 let thumb_bounds = scrollbar_layout.thumb_bounds();
4803
4804 if scrollbar_layout.visible {
4805 window.paint_layer(hitbox.bounds, |window| {
4806 window.paint_quad(quad(
4807 hitbox.bounds,
4808 Corners::default(),
4809 cx.theme().colors().scrollbar_track_background,
4810 Edges {
4811 top: Pixels::ZERO,
4812 right: Pixels::ZERO,
4813 bottom: Pixels::ZERO,
4814 left: Pixels::ZERO,
4815 },
4816 cx.theme().colors().scrollbar_track_border,
4817 ));
4818
4819 window.paint_quad(quad(
4820 thumb_bounds,
4821 Corners::default(),
4822 cx.theme().colors().scrollbar_thumb_background,
4823 Edges {
4824 top: Pixels::ZERO,
4825 right: Pixels::ZERO,
4826 bottom: Pixels::ZERO,
4827 left: ScrollbarLayout::BORDER_WIDTH,
4828 },
4829 cx.theme().colors().scrollbar_thumb_border,
4830 ));
4831 })
4832 }
4833
4834 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4835
4836 window.on_mouse_event({
4837 let editor = self.editor.clone();
4838
4839 // there may be a way to avoid this clone
4840 let hitbox = hitbox.clone();
4841
4842 let mut mouse_position = window.mouse_position();
4843 move |event: &MouseMoveEvent, phase, window, cx| {
4844 if phase == DispatchPhase::Capture {
4845 return;
4846 }
4847
4848 editor.update(cx, |editor, cx| {
4849 if event.pressed_button == Some(MouseButton::Left)
4850 && editor
4851 .scroll_manager
4852 .is_dragging_scrollbar(Axis::Horizontal)
4853 {
4854 let x = mouse_position.x;
4855 let new_x = event.position.x;
4856 if (hitbox.left()..hitbox.right()).contains(&x) {
4857 let mut position = editor.scroll_position(cx);
4858
4859 position.x += (new_x - x) / text_unit_size;
4860 if position.x < 0.0 {
4861 position.x = 0.0;
4862 }
4863 editor.set_scroll_position(position, window, cx);
4864 }
4865
4866 cx.stop_propagation();
4867 } else {
4868 editor.scroll_manager.set_is_dragging_scrollbar(
4869 Axis::Horizontal,
4870 false,
4871 cx,
4872 );
4873
4874 if hitbox.is_hovered(window) {
4875 editor.scroll_manager.show_scrollbar(window, cx);
4876 }
4877 }
4878 mouse_position = event.position;
4879 })
4880 }
4881 });
4882
4883 if self
4884 .editor
4885 .read(cx)
4886 .scroll_manager
4887 .is_dragging_scrollbar(Axis::Horizontal)
4888 {
4889 window.on_mouse_event({
4890 let editor = self.editor.clone();
4891 move |_: &MouseUpEvent, phase, _, cx| {
4892 if phase == DispatchPhase::Capture {
4893 return;
4894 }
4895
4896 editor.update(cx, |editor, cx| {
4897 editor.scroll_manager.set_is_dragging_scrollbar(
4898 Axis::Horizontal,
4899 false,
4900 cx,
4901 );
4902 cx.stop_propagation();
4903 });
4904 }
4905 });
4906 } else {
4907 window.on_mouse_event({
4908 let editor = self.editor.clone();
4909
4910 move |event: &MouseDownEvent, phase, window, cx| {
4911 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4912 return;
4913 }
4914
4915 editor.update(cx, |editor, cx| {
4916 editor.scroll_manager.set_is_dragging_scrollbar(
4917 Axis::Horizontal,
4918 true,
4919 cx,
4920 );
4921
4922 let x = event.position.x;
4923
4924 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4925 let center_row =
4926 ((x - hitbox.left()) / text_unit_size).round() as u32;
4927 let top_row = center_row.saturating_sub(
4928 (visible_range.end - visible_range.start) as u32 / 2,
4929 );
4930
4931 let mut position = editor.scroll_position(cx);
4932 position.x = top_row as f32;
4933
4934 editor.set_scroll_position(position, window, cx);
4935 } else {
4936 editor.scroll_manager.show_scrollbar(window, cx);
4937 }
4938
4939 cx.stop_propagation();
4940 });
4941 }
4942 });
4943 }
4944 }
4945
4946 if let Some(scrollbar_layout) = scrollbar_y {
4947 let hitbox = scrollbar_layout.hitbox.clone();
4948 let text_unit_size = scrollbar_layout.text_unit_size;
4949 let visible_range = scrollbar_layout.visible_range.clone();
4950 let thumb_bounds = scrollbar_layout.thumb_bounds();
4951
4952 if scrollbar_layout.visible {
4953 window.paint_layer(hitbox.bounds, |window| {
4954 window.paint_quad(quad(
4955 hitbox.bounds,
4956 Corners::default(),
4957 cx.theme().colors().scrollbar_track_background,
4958 Edges {
4959 top: Pixels::ZERO,
4960 right: Pixels::ZERO,
4961 bottom: Pixels::ZERO,
4962 left: ScrollbarLayout::BORDER_WIDTH,
4963 },
4964 cx.theme().colors().scrollbar_track_border,
4965 ));
4966
4967 let fast_markers =
4968 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4969 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4970 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4971
4972 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4973 for marker in markers.iter().chain(&fast_markers) {
4974 let mut marker = marker.clone();
4975 marker.bounds.origin += hitbox.origin;
4976 window.paint_quad(marker);
4977 }
4978
4979 window.paint_quad(quad(
4980 thumb_bounds,
4981 Corners::default(),
4982 cx.theme().colors().scrollbar_thumb_background,
4983 Edges {
4984 top: Pixels::ZERO,
4985 right: Pixels::ZERO,
4986 bottom: Pixels::ZERO,
4987 left: ScrollbarLayout::BORDER_WIDTH,
4988 },
4989 cx.theme().colors().scrollbar_thumb_border,
4990 ));
4991 });
4992 }
4993
4994 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4995
4996 window.on_mouse_event({
4997 let editor = self.editor.clone();
4998
4999 let hitbox = hitbox.clone();
5000
5001 let mut mouse_position = window.mouse_position();
5002 move |event: &MouseMoveEvent, phase, window, cx| {
5003 if phase == DispatchPhase::Capture {
5004 return;
5005 }
5006
5007 editor.update(cx, |editor, cx| {
5008 if event.pressed_button == Some(MouseButton::Left)
5009 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5010 {
5011 let y = mouse_position.y;
5012 let new_y = event.position.y;
5013 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5014 let mut position = editor.scroll_position(cx);
5015 position.y += (new_y - y) / text_unit_size;
5016 if position.y < 0.0 {
5017 position.y = 0.0;
5018 }
5019 editor.set_scroll_position(position, window, cx);
5020 }
5021 } else {
5022 editor.scroll_manager.set_is_dragging_scrollbar(
5023 Axis::Vertical,
5024 false,
5025 cx,
5026 );
5027
5028 if hitbox.is_hovered(window) {
5029 editor.scroll_manager.show_scrollbar(window, cx);
5030 }
5031 }
5032 mouse_position = event.position;
5033 })
5034 }
5035 });
5036
5037 if self
5038 .editor
5039 .read(cx)
5040 .scroll_manager
5041 .is_dragging_scrollbar(Axis::Vertical)
5042 {
5043 window.on_mouse_event({
5044 let editor = self.editor.clone();
5045 move |_: &MouseUpEvent, phase, _, cx| {
5046 if phase == DispatchPhase::Capture {
5047 return;
5048 }
5049
5050 editor.update(cx, |editor, cx| {
5051 editor.scroll_manager.set_is_dragging_scrollbar(
5052 Axis::Vertical,
5053 false,
5054 cx,
5055 );
5056 cx.stop_propagation();
5057 });
5058 }
5059 });
5060 } else {
5061 window.on_mouse_event({
5062 let editor = self.editor.clone();
5063
5064 move |event: &MouseDownEvent, phase, window, cx| {
5065 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5066 return;
5067 }
5068
5069 editor.update(cx, |editor, cx| {
5070 editor.scroll_manager.set_is_dragging_scrollbar(
5071 Axis::Vertical,
5072 true,
5073 cx,
5074 );
5075
5076 let y = event.position.y;
5077 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5078 let center_row =
5079 ((y - hitbox.top()) / text_unit_size).round() as u32;
5080 let top_row = center_row.saturating_sub(
5081 (visible_range.end - visible_range.start) as u32 / 2,
5082 );
5083 let mut position = editor.scroll_position(cx);
5084 position.y = top_row as f32;
5085 editor.set_scroll_position(position, window, cx);
5086 } else {
5087 editor.scroll_manager.show_scrollbar(window, cx);
5088 }
5089
5090 cx.stop_propagation();
5091 });
5092 }
5093 });
5094 }
5095 }
5096 }
5097
5098 fn collect_fast_scrollbar_markers(
5099 &self,
5100 layout: &EditorLayout,
5101 scrollbar_layout: &ScrollbarLayout,
5102 cx: &mut App,
5103 ) -> Vec<PaintQuad> {
5104 const LIMIT: usize = 100;
5105 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5106 return vec![];
5107 }
5108 let cursor_ranges = layout
5109 .cursors
5110 .iter()
5111 .map(|(point, color)| ColoredRange {
5112 start: point.row(),
5113 end: point.row(),
5114 color: *color,
5115 })
5116 .collect_vec();
5117 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5118 }
5119
5120 fn refresh_slow_scrollbar_markers(
5121 &self,
5122 layout: &EditorLayout,
5123 scrollbar_layout: &ScrollbarLayout,
5124 window: &mut Window,
5125 cx: &mut App,
5126 ) {
5127 self.editor.update(cx, |editor, cx| {
5128 if !editor.is_singleton(cx)
5129 || !editor
5130 .scrollbar_marker_state
5131 .should_refresh(scrollbar_layout.hitbox.size)
5132 {
5133 return;
5134 }
5135
5136 let scrollbar_layout = scrollbar_layout.clone();
5137 let background_highlights = editor.background_highlights.clone();
5138 let snapshot = layout.position_map.snapshot.clone();
5139 let theme = cx.theme().clone();
5140 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5141
5142 editor.scrollbar_marker_state.dirty = false;
5143 editor.scrollbar_marker_state.pending_refresh =
5144 Some(cx.spawn_in(window, |editor, mut cx| async move {
5145 let scrollbar_size = scrollbar_layout.hitbox.size;
5146 let scrollbar_markers = cx
5147 .background_spawn(async move {
5148 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5149 let mut marker_quads = Vec::new();
5150 if scrollbar_settings.git_diff {
5151 let marker_row_ranges =
5152 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5153 let start_display_row =
5154 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5155 .to_display_point(&snapshot.display_snapshot)
5156 .row();
5157 let mut end_display_row =
5158 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5159 .to_display_point(&snapshot.display_snapshot)
5160 .row();
5161 if end_display_row != start_display_row {
5162 end_display_row.0 -= 1;
5163 }
5164 let color = match &hunk.status().kind {
5165 DiffHunkStatusKind::Added => {
5166 theme.colors().version_control_added
5167 }
5168 DiffHunkStatusKind::Modified => {
5169 theme.colors().version_control_modified
5170 }
5171 DiffHunkStatusKind::Deleted => {
5172 theme.colors().version_control_deleted
5173 }
5174 };
5175 ColoredRange {
5176 start: start_display_row,
5177 end: end_display_row,
5178 color,
5179 }
5180 });
5181
5182 marker_quads.extend(
5183 scrollbar_layout
5184 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5185 );
5186 }
5187
5188 for (background_highlight_id, (_, background_ranges)) in
5189 background_highlights.iter()
5190 {
5191 let is_search_highlights = *background_highlight_id
5192 == TypeId::of::<BufferSearchHighlights>();
5193 let is_text_highlights = *background_highlight_id
5194 == TypeId::of::<SelectedTextHighlight>();
5195 let is_symbol_occurrences = *background_highlight_id
5196 == TypeId::of::<DocumentHighlightRead>()
5197 || *background_highlight_id
5198 == TypeId::of::<DocumentHighlightWrite>();
5199 if (is_search_highlights && scrollbar_settings.search_results)
5200 || (is_text_highlights && scrollbar_settings.selected_text)
5201 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5202 {
5203 let mut color = theme.status().info;
5204 if is_symbol_occurrences {
5205 color.fade_out(0.5);
5206 }
5207 let marker_row_ranges = background_ranges.iter().map(|range| {
5208 let display_start = range
5209 .start
5210 .to_display_point(&snapshot.display_snapshot);
5211 let display_end =
5212 range.end.to_display_point(&snapshot.display_snapshot);
5213 ColoredRange {
5214 start: display_start.row(),
5215 end: display_end.row(),
5216 color,
5217 }
5218 });
5219 marker_quads.extend(
5220 scrollbar_layout
5221 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5222 );
5223 }
5224 }
5225
5226 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5227 let diagnostics = snapshot
5228 .buffer_snapshot
5229 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5230 // Don't show diagnostics the user doesn't care about
5231 .filter(|diagnostic| {
5232 match (
5233 scrollbar_settings.diagnostics,
5234 diagnostic.diagnostic.severity,
5235 ) {
5236 (ScrollbarDiagnostics::All, _) => true,
5237 (
5238 ScrollbarDiagnostics::Error,
5239 DiagnosticSeverity::ERROR,
5240 ) => true,
5241 (
5242 ScrollbarDiagnostics::Warning,
5243 DiagnosticSeverity::ERROR
5244 | DiagnosticSeverity::WARNING,
5245 ) => true,
5246 (
5247 ScrollbarDiagnostics::Information,
5248 DiagnosticSeverity::ERROR
5249 | DiagnosticSeverity::WARNING
5250 | DiagnosticSeverity::INFORMATION,
5251 ) => true,
5252 (_, _) => false,
5253 }
5254 })
5255 // We want to sort by severity, in order to paint the most severe diagnostics last.
5256 .sorted_by_key(|diagnostic| {
5257 std::cmp::Reverse(diagnostic.diagnostic.severity)
5258 });
5259
5260 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5261 let start_display = diagnostic
5262 .range
5263 .start
5264 .to_display_point(&snapshot.display_snapshot);
5265 let end_display = diagnostic
5266 .range
5267 .end
5268 .to_display_point(&snapshot.display_snapshot);
5269 let color = match diagnostic.diagnostic.severity {
5270 DiagnosticSeverity::ERROR => theme.status().error,
5271 DiagnosticSeverity::WARNING => theme.status().warning,
5272 DiagnosticSeverity::INFORMATION => theme.status().info,
5273 _ => theme.status().hint,
5274 };
5275 ColoredRange {
5276 start: start_display.row(),
5277 end: end_display.row(),
5278 color,
5279 }
5280 });
5281 marker_quads.extend(
5282 scrollbar_layout
5283 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5284 );
5285 }
5286
5287 Arc::from(marker_quads)
5288 })
5289 .await;
5290
5291 editor.update(&mut cx, |editor, cx| {
5292 editor.scrollbar_marker_state.markers = scrollbar_markers;
5293 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5294 editor.scrollbar_marker_state.pending_refresh = None;
5295 cx.notify();
5296 })?;
5297
5298 Ok(())
5299 }));
5300 });
5301 }
5302
5303 #[allow(clippy::too_many_arguments)]
5304 fn paint_highlighted_range(
5305 &self,
5306 range: Range<DisplayPoint>,
5307 color: Hsla,
5308 corner_radius: Pixels,
5309 line_end_overshoot: Pixels,
5310 layout: &EditorLayout,
5311 window: &mut Window,
5312 ) {
5313 let start_row = layout.visible_display_row_range.start;
5314 let end_row = layout.visible_display_row_range.end;
5315 if range.start != range.end {
5316 let row_range = if range.end.column() == 0 {
5317 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5318 } else {
5319 cmp::max(range.start.row(), start_row)
5320 ..cmp::min(range.end.row().next_row(), end_row)
5321 };
5322
5323 let highlighted_range = HighlightedRange {
5324 color,
5325 line_height: layout.position_map.line_height,
5326 corner_radius,
5327 start_y: layout.content_origin.y
5328 + row_range.start.as_f32() * layout.position_map.line_height
5329 - layout.position_map.scroll_pixel_position.y,
5330 lines: row_range
5331 .iter_rows()
5332 .map(|row| {
5333 let line_layout =
5334 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5335 HighlightedRangeLine {
5336 start_x: if row == range.start.row() {
5337 layout.content_origin.x
5338 + line_layout.x_for_index(range.start.column() as usize)
5339 - layout.position_map.scroll_pixel_position.x
5340 } else {
5341 layout.content_origin.x
5342 - layout.position_map.scroll_pixel_position.x
5343 },
5344 end_x: if row == range.end.row() {
5345 layout.content_origin.x
5346 + line_layout.x_for_index(range.end.column() as usize)
5347 - layout.position_map.scroll_pixel_position.x
5348 } else {
5349 layout.content_origin.x + line_layout.width + line_end_overshoot
5350 - layout.position_map.scroll_pixel_position.x
5351 },
5352 }
5353 })
5354 .collect(),
5355 };
5356
5357 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5358 }
5359 }
5360
5361 fn paint_inline_diagnostics(
5362 &mut self,
5363 layout: &mut EditorLayout,
5364 window: &mut Window,
5365 cx: &mut App,
5366 ) {
5367 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
5368 inline_diagnostic.1.paint(window, cx);
5369 }
5370 }
5371
5372 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5373 if let Some(mut inline_blame) = layout.inline_blame.take() {
5374 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5375 inline_blame.paint(window, cx);
5376 })
5377 }
5378 }
5379
5380 fn paint_diff_hunk_controls(
5381 &mut self,
5382 layout: &mut EditorLayout,
5383 window: &mut Window,
5384 cx: &mut App,
5385 ) {
5386 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5387 diff_hunk_control.paint(window, cx);
5388 }
5389 }
5390
5391 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5392 for mut block in layout.blocks.drain(..) {
5393 block.element.paint(window, cx);
5394 }
5395 }
5396
5397 fn paint_inline_completion_popover(
5398 &mut self,
5399 layout: &mut EditorLayout,
5400 window: &mut Window,
5401 cx: &mut App,
5402 ) {
5403 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5404 inline_completion_popover.paint(window, cx);
5405 }
5406 }
5407
5408 fn paint_mouse_context_menu(
5409 &mut self,
5410 layout: &mut EditorLayout,
5411 window: &mut Window,
5412 cx: &mut App,
5413 ) {
5414 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5415 mouse_context_menu.paint(window, cx);
5416 }
5417 }
5418
5419 fn paint_scroll_wheel_listener(
5420 &mut self,
5421 layout: &EditorLayout,
5422 window: &mut Window,
5423 cx: &mut App,
5424 ) {
5425 window.on_mouse_event({
5426 let position_map = layout.position_map.clone();
5427 let editor = self.editor.clone();
5428 let hitbox = layout.hitbox.clone();
5429 let mut delta = ScrollDelta::default();
5430
5431 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5432 // accidentally turn off their scrolling.
5433 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5434
5435 move |event: &ScrollWheelEvent, phase, window, cx| {
5436 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5437 delta = delta.coalesce(event.delta);
5438 editor.update(cx, |editor, cx| {
5439 let position_map: &PositionMap = &position_map;
5440
5441 let line_height = position_map.line_height;
5442 let max_glyph_width = position_map.em_width;
5443 let (delta, axis) = match delta {
5444 gpui::ScrollDelta::Pixels(mut pixels) => {
5445 //Trackpad
5446 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5447 (pixels, axis)
5448 }
5449
5450 gpui::ScrollDelta::Lines(lines) => {
5451 //Not trackpad
5452 let pixels =
5453 point(lines.x * max_glyph_width, lines.y * line_height);
5454 (pixels, None)
5455 }
5456 };
5457
5458 let current_scroll_position = position_map.snapshot.scroll_position();
5459 let x = (current_scroll_position.x * max_glyph_width
5460 - (delta.x * scroll_sensitivity))
5461 / max_glyph_width;
5462 let y = (current_scroll_position.y * line_height
5463 - (delta.y * scroll_sensitivity))
5464 / line_height;
5465 let mut scroll_position =
5466 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5467 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5468 if forbid_vertical_scroll {
5469 scroll_position.y = current_scroll_position.y;
5470 }
5471
5472 if scroll_position != current_scroll_position {
5473 editor.scroll(scroll_position, axis, window, cx);
5474 cx.stop_propagation();
5475 } else if y < 0. {
5476 // Due to clamping, we may fail to detect cases of overscroll to the top;
5477 // We want the scroll manager to get an update in such cases and detect the change of direction
5478 // on the next frame.
5479 cx.notify();
5480 }
5481 });
5482 }
5483 }
5484 });
5485 }
5486
5487 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5488 self.paint_scroll_wheel_listener(layout, window, cx);
5489
5490 window.on_mouse_event({
5491 let position_map = layout.position_map.clone();
5492 let editor = self.editor.clone();
5493 let diff_hunk_range =
5494 layout
5495 .display_hunks
5496 .iter()
5497 .find_map(|(hunk, hunk_hitbox)| match hunk {
5498 DisplayDiffHunk::Folded { .. } => None,
5499 DisplayDiffHunk::Unfolded {
5500 multi_buffer_range, ..
5501 } => {
5502 if hunk_hitbox
5503 .as_ref()
5504 .map(|hitbox| hitbox.is_hovered(window))
5505 .unwrap_or(false)
5506 {
5507 Some(multi_buffer_range.clone())
5508 } else {
5509 None
5510 }
5511 }
5512 });
5513 let line_numbers = layout.line_numbers.clone();
5514
5515 move |event: &MouseDownEvent, phase, window, cx| {
5516 if phase == DispatchPhase::Bubble {
5517 match event.button {
5518 MouseButton::Left => editor.update(cx, |editor, cx| {
5519 let pending_mouse_down = editor
5520 .pending_mouse_down
5521 .get_or_insert_with(Default::default)
5522 .clone();
5523
5524 *pending_mouse_down.borrow_mut() = Some(event.clone());
5525
5526 Self::mouse_left_down(
5527 editor,
5528 event,
5529 diff_hunk_range.clone(),
5530 &position_map,
5531 line_numbers.as_ref(),
5532 window,
5533 cx,
5534 );
5535 }),
5536 MouseButton::Right => editor.update(cx, |editor, cx| {
5537 Self::mouse_right_down(editor, event, &position_map, window, cx);
5538 }),
5539 MouseButton::Middle => editor.update(cx, |editor, cx| {
5540 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5541 }),
5542 _ => {}
5543 };
5544 }
5545 }
5546 });
5547
5548 window.on_mouse_event({
5549 let editor = self.editor.clone();
5550 let position_map = layout.position_map.clone();
5551
5552 move |event: &MouseUpEvent, phase, window, cx| {
5553 if phase == DispatchPhase::Bubble {
5554 editor.update(cx, |editor, cx| {
5555 Self::mouse_up(editor, event, &position_map, window, cx)
5556 });
5557 }
5558 }
5559 });
5560
5561 window.on_mouse_event({
5562 let editor = self.editor.clone();
5563 let position_map = layout.position_map.clone();
5564 let mut captured_mouse_down = None;
5565
5566 move |event: &MouseUpEvent, phase, window, cx| match phase {
5567 // Clear the pending mouse down during the capture phase,
5568 // so that it happens even if another event handler stops
5569 // propagation.
5570 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5571 let pending_mouse_down = editor
5572 .pending_mouse_down
5573 .get_or_insert_with(Default::default)
5574 .clone();
5575
5576 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5577 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5578 captured_mouse_down = pending_mouse_down.take();
5579 window.refresh();
5580 }
5581 }),
5582 // Fire click handlers during the bubble phase.
5583 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5584 if let Some(mouse_down) = captured_mouse_down.take() {
5585 let event = ClickEvent {
5586 down: mouse_down,
5587 up: event.clone(),
5588 };
5589 Self::click(editor, &event, &position_map, window, cx);
5590 }
5591 }),
5592 }
5593 });
5594
5595 window.on_mouse_event({
5596 let position_map = layout.position_map.clone();
5597 let editor = self.editor.clone();
5598
5599 move |event: &MouseMoveEvent, phase, window, cx| {
5600 if phase == DispatchPhase::Bubble {
5601 editor.update(cx, |editor, cx| {
5602 if editor.hover_state.focused(window, cx) {
5603 return;
5604 }
5605 if event.pressed_button == Some(MouseButton::Left)
5606 || event.pressed_button == Some(MouseButton::Middle)
5607 {
5608 Self::mouse_dragged(editor, event, &position_map, window, cx)
5609 }
5610
5611 Self::mouse_moved(editor, event, &position_map, window, cx)
5612 });
5613 }
5614 }
5615 });
5616 }
5617
5618 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5619 bounds.top_right().x - self.style.scrollbar_width
5620 }
5621
5622 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5623 let style = &self.style;
5624 let font_size = style.text.font_size.to_pixels(window.rem_size());
5625 let layout = window
5626 .text_system()
5627 .shape_line(
5628 SharedString::from(" ".repeat(column)),
5629 font_size,
5630 &[TextRun {
5631 len: column,
5632 font: style.text.font(),
5633 color: Hsla::default(),
5634 background_color: None,
5635 underline: None,
5636 strikethrough: None,
5637 }],
5638 )
5639 .unwrap();
5640
5641 layout.width
5642 }
5643
5644 fn max_line_number_width(
5645 &self,
5646 snapshot: &EditorSnapshot,
5647 window: &mut Window,
5648 cx: &mut App,
5649 ) -> Pixels {
5650 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5651 self.column_pixels(digit_count, window, cx)
5652 }
5653
5654 fn shape_line_number(
5655 &self,
5656 text: SharedString,
5657 color: Hsla,
5658 window: &mut Window,
5659 ) -> anyhow::Result<ShapedLine> {
5660 let run = TextRun {
5661 len: text.len(),
5662 font: self.style.text.font(),
5663 color,
5664 background_color: None,
5665 underline: None,
5666 strikethrough: None,
5667 };
5668 window.text_system().shape_line(
5669 text,
5670 self.style.text.font_size.to_pixels(window.rem_size()),
5671 &[run],
5672 )
5673 }
5674}
5675
5676fn header_jump_data(
5677 snapshot: &EditorSnapshot,
5678 block_row_start: DisplayRow,
5679 height: u32,
5680 for_excerpt: &ExcerptInfo,
5681) -> JumpData {
5682 let range = &for_excerpt.range;
5683 let buffer = &for_excerpt.buffer;
5684 let jump_anchor = range
5685 .primary
5686 .as_ref()
5687 .map_or(range.context.start, |primary| primary.start);
5688
5689 let excerpt_start = range.context.start;
5690 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5691 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5692 0
5693 } else {
5694 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5695 jump_position.row.saturating_sub(excerpt_start_point.row)
5696 };
5697
5698 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5699 .saturating_sub(
5700 snapshot
5701 .scroll_anchor
5702 .scroll_position(&snapshot.display_snapshot)
5703 .y as u32,
5704 );
5705
5706 JumpData::MultiBufferPoint {
5707 excerpt_id: for_excerpt.id,
5708 anchor: jump_anchor,
5709 position: jump_position,
5710 line_offset_from_top,
5711 }
5712}
5713
5714pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
5715
5716impl AcceptEditPredictionBinding {
5717 pub fn keystroke(&self) -> Option<&Keystroke> {
5718 if let Some(binding) = self.0.as_ref() {
5719 match &binding.keystrokes() {
5720 [keystroke] => Some(keystroke),
5721 _ => None,
5722 }
5723 } else {
5724 None
5725 }
5726 }
5727}
5728
5729#[allow(clippy::too_many_arguments)]
5730fn prepaint_gutter_button(
5731 button: IconButton,
5732 row: DisplayRow,
5733 line_height: Pixels,
5734 gutter_dimensions: &GutterDimensions,
5735 scroll_pixel_position: gpui::Point<Pixels>,
5736 gutter_hitbox: &Hitbox,
5737 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
5738 window: &mut Window,
5739 cx: &mut App,
5740) -> AnyElement {
5741 let mut button = button.into_any_element();
5742 let available_space = size(
5743 AvailableSpace::MinContent,
5744 AvailableSpace::Definite(line_height),
5745 );
5746 let indicator_size = button.layout_as_root(available_space, window, cx);
5747
5748 let blame_width = gutter_dimensions.git_blame_entries_width;
5749 let gutter_width = display_hunks
5750 .binary_search_by(|(hunk, _)| match hunk {
5751 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
5752 DisplayDiffHunk::Unfolded {
5753 display_row_range, ..
5754 } => {
5755 if display_row_range.end <= row {
5756 Ordering::Less
5757 } else if display_row_range.start > row {
5758 Ordering::Greater
5759 } else {
5760 Ordering::Equal
5761 }
5762 }
5763 })
5764 .ok()
5765 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
5766 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5767
5768 let mut x = left_offset;
5769 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5770 - indicator_size.width
5771 - left_offset;
5772 x += available_width / 2.;
5773
5774 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5775 y += (line_height - indicator_size.height) / 2.;
5776
5777 button.prepaint_as_root(
5778 gutter_hitbox.origin + point(x, y),
5779 available_space,
5780 window,
5781 cx,
5782 );
5783 button
5784}
5785
5786fn render_inline_blame_entry(
5787 editor: Entity<Editor>,
5788 blame: &gpui::Entity<GitBlame>,
5789 blame_entry: BlameEntry,
5790 style: &EditorStyle,
5791 cx: &mut App,
5792) -> AnyElement {
5793 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5794
5795 let author = blame_entry.author.as_deref().unwrap_or_default();
5796 let summary_enabled = ProjectSettings::get_global(cx)
5797 .git
5798 .show_inline_commit_summary();
5799
5800 let text = match blame_entry.summary.as_ref() {
5801 Some(summary) if summary_enabled => {
5802 format!("{}, {} - {}", author, relative_timestamp, summary)
5803 }
5804 _ => format!("{}, {}", author, relative_timestamp),
5805 };
5806 let blame = blame.clone();
5807 let blame_entry = blame_entry.clone();
5808
5809 h_flex()
5810 .id("inline-blame")
5811 .w_full()
5812 .font_family(style.text.font().family)
5813 .text_color(cx.theme().status().hint)
5814 .line_height(style.text.line_height)
5815 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5816 .child(text)
5817 .gap_2()
5818 .hoverable_tooltip(move |window, cx| {
5819 let details = blame.read(cx).details_for_entry(&blame_entry);
5820 let tooltip =
5821 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details, window, cx));
5822 editor.update(cx, |editor, _| {
5823 editor.git_blame_inline_tooltip = Some(tooltip.downgrade())
5824 });
5825 tooltip.into()
5826 })
5827 .into_any()
5828}
5829
5830fn render_blame_entry(
5831 ix: usize,
5832 blame: &gpui::Entity<GitBlame>,
5833 blame_entry: BlameEntry,
5834 style: &EditorStyle,
5835 last_used_color: &mut Option<(PlayerColor, Oid)>,
5836 editor: Entity<Editor>,
5837 cx: &mut App,
5838) -> AnyElement {
5839 let mut sha_color = cx
5840 .theme()
5841 .players()
5842 .color_for_participant(blame_entry.sha.into());
5843 // If the last color we used is the same as the one we get for this line, but
5844 // the commit SHAs are different, then we try again to get a different color.
5845 match *last_used_color {
5846 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5847 let index: u32 = blame_entry.sha.into();
5848 sha_color = cx.theme().players().color_for_participant(index + 1);
5849 }
5850 _ => {}
5851 };
5852 last_used_color.replace((sha_color, blame_entry.sha));
5853
5854 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5855
5856 let short_commit_id = blame_entry.sha.display_short();
5857
5858 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5859 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5860 let details = blame.read(cx).details_for_entry(&blame_entry);
5861
5862 h_flex()
5863 .w_full()
5864 .justify_between()
5865 .font_family(style.text.font().family)
5866 .line_height(style.text.line_height)
5867 .id(("blame", ix))
5868 .text_color(cx.theme().status().hint)
5869 .pr_2()
5870 .gap_2()
5871 .child(
5872 h_flex()
5873 .items_center()
5874 .gap_2()
5875 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5876 .child(name),
5877 )
5878 .child(relative_timestamp)
5879 .on_mouse_down(MouseButton::Right, {
5880 let blame_entry = blame_entry.clone();
5881 let details = details.clone();
5882 move |event, window, cx| {
5883 deploy_blame_entry_context_menu(
5884 &blame_entry,
5885 details.as_ref(),
5886 editor.clone(),
5887 event.position,
5888 window,
5889 cx,
5890 );
5891 }
5892 })
5893 .hover(|style| style.bg(cx.theme().colors().element_hover))
5894 .when_some(
5895 details
5896 .as_ref()
5897 .and_then(|details| details.permalink.clone()),
5898 |this, url| {
5899 this.cursor_pointer().on_click(move |_, _, cx| {
5900 cx.stop_propagation();
5901 cx.open_url(url.as_str())
5902 })
5903 },
5904 )
5905 .hoverable_tooltip(move |window, cx| {
5906 cx.new(|cx| CommitTooltip::blame_entry(&blame_entry, details.clone(), window, cx))
5907 .into()
5908 })
5909 .into_any()
5910}
5911
5912fn deploy_blame_entry_context_menu(
5913 blame_entry: &BlameEntry,
5914 details: Option<&ParsedCommitMessage>,
5915 editor: Entity<Editor>,
5916 position: gpui::Point<Pixels>,
5917 window: &mut Window,
5918 cx: &mut App,
5919) {
5920 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5921 let sha = format!("{}", blame_entry.sha);
5922 menu.on_blur_subscription(Subscription::new(|| {}))
5923 .entry("Copy commit SHA", None, move |_, cx| {
5924 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5925 })
5926 .when_some(
5927 details.and_then(|details| details.permalink.clone()),
5928 |this, url| {
5929 this.entry("Open permalink", None, move |_, cx| {
5930 cx.open_url(url.as_str())
5931 })
5932 },
5933 )
5934 });
5935
5936 editor.update(cx, move |editor, cx| {
5937 editor.mouse_context_menu = Some(MouseContextMenu::new(
5938 MenuPosition::PinnedToScreen(position),
5939 context_menu,
5940 window,
5941 cx,
5942 ));
5943 cx.notify();
5944 });
5945}
5946
5947#[derive(Debug)]
5948pub(crate) struct LineWithInvisibles {
5949 fragments: SmallVec<[LineFragment; 1]>,
5950 invisibles: Vec<Invisible>,
5951 len: usize,
5952 pub(crate) width: Pixels,
5953 font_size: Pixels,
5954}
5955
5956#[allow(clippy::large_enum_variant)]
5957enum LineFragment {
5958 Text(ShapedLine),
5959 Element {
5960 element: Option<AnyElement>,
5961 size: Size<Pixels>,
5962 len: usize,
5963 },
5964}
5965
5966impl fmt::Debug for LineFragment {
5967 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
5968 match self {
5969 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
5970 LineFragment::Element { size, len, .. } => f
5971 .debug_struct("Element")
5972 .field("size", size)
5973 .field("len", len)
5974 .finish(),
5975 }
5976 }
5977}
5978
5979impl LineWithInvisibles {
5980 #[allow(clippy::too_many_arguments)]
5981 fn from_chunks<'a>(
5982 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
5983 editor_style: &EditorStyle,
5984 max_line_len: usize,
5985 max_line_count: usize,
5986 editor_mode: EditorMode,
5987 text_width: Pixels,
5988 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
5989 window: &mut Window,
5990 cx: &mut App,
5991 ) -> Vec<Self> {
5992 let text_style = &editor_style.text;
5993 let mut layouts = Vec::with_capacity(max_line_count);
5994 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
5995 let mut line = String::new();
5996 let mut invisibles = Vec::new();
5997 let mut width = Pixels::ZERO;
5998 let mut len = 0;
5999 let mut styles = Vec::new();
6000 let mut non_whitespace_added = false;
6001 let mut row = 0;
6002 let mut line_exceeded_max_len = false;
6003 let font_size = text_style.font_size.to_pixels(window.rem_size());
6004
6005 let ellipsis = SharedString::from("⋯");
6006
6007 for highlighted_chunk in chunks.chain([HighlightedChunk {
6008 text: "\n",
6009 style: None,
6010 is_tab: false,
6011 replacement: None,
6012 }]) {
6013 if let Some(replacement) = highlighted_chunk.replacement {
6014 if !line.is_empty() {
6015 let shaped_line = window
6016 .text_system()
6017 .shape_line(line.clone().into(), font_size, &styles)
6018 .unwrap();
6019 width += shaped_line.width;
6020 len += shaped_line.len;
6021 fragments.push(LineFragment::Text(shaped_line));
6022 line.clear();
6023 styles.clear();
6024 }
6025
6026 match replacement {
6027 ChunkReplacement::Renderer(renderer) => {
6028 let available_width = if renderer.constrain_width {
6029 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6030 ellipsis.clone()
6031 } else {
6032 SharedString::from(Arc::from(highlighted_chunk.text))
6033 };
6034 let shaped_line = window
6035 .text_system()
6036 .shape_line(
6037 chunk,
6038 font_size,
6039 &[text_style.to_run(highlighted_chunk.text.len())],
6040 )
6041 .unwrap();
6042 AvailableSpace::Definite(shaped_line.width)
6043 } else {
6044 AvailableSpace::MinContent
6045 };
6046
6047 let mut element = (renderer.render)(&mut ChunkRendererContext {
6048 context: cx,
6049 window,
6050 max_width: text_width,
6051 });
6052 let line_height = text_style.line_height_in_pixels(window.rem_size());
6053 let size = element.layout_as_root(
6054 size(available_width, AvailableSpace::Definite(line_height)),
6055 window,
6056 cx,
6057 );
6058
6059 width += size.width;
6060 len += highlighted_chunk.text.len();
6061 fragments.push(LineFragment::Element {
6062 element: Some(element),
6063 size,
6064 len: highlighted_chunk.text.len(),
6065 });
6066 }
6067 ChunkReplacement::Str(x) => {
6068 let text_style = if let Some(style) = highlighted_chunk.style {
6069 Cow::Owned(text_style.clone().highlight(style))
6070 } else {
6071 Cow::Borrowed(text_style)
6072 };
6073
6074 let run = TextRun {
6075 len: x.len(),
6076 font: text_style.font(),
6077 color: text_style.color,
6078 background_color: text_style.background_color,
6079 underline: text_style.underline,
6080 strikethrough: text_style.strikethrough,
6081 };
6082 let line_layout = window
6083 .text_system()
6084 .shape_line(x, font_size, &[run])
6085 .unwrap()
6086 .with_len(highlighted_chunk.text.len());
6087
6088 width += line_layout.width;
6089 len += highlighted_chunk.text.len();
6090 fragments.push(LineFragment::Text(line_layout))
6091 }
6092 }
6093 } else {
6094 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6095 if ix > 0 {
6096 let shaped_line = window
6097 .text_system()
6098 .shape_line(line.clone().into(), font_size, &styles)
6099 .unwrap();
6100 width += shaped_line.width;
6101 len += shaped_line.len;
6102 fragments.push(LineFragment::Text(shaped_line));
6103 layouts.push(Self {
6104 width: mem::take(&mut width),
6105 len: mem::take(&mut len),
6106 fragments: mem::take(&mut fragments),
6107 invisibles: std::mem::take(&mut invisibles),
6108 font_size,
6109 });
6110
6111 line.clear();
6112 styles.clear();
6113 row += 1;
6114 line_exceeded_max_len = false;
6115 non_whitespace_added = false;
6116 if row == max_line_count {
6117 return layouts;
6118 }
6119 }
6120
6121 if !line_chunk.is_empty() && !line_exceeded_max_len {
6122 let text_style = if let Some(style) = highlighted_chunk.style {
6123 Cow::Owned(text_style.clone().highlight(style))
6124 } else {
6125 Cow::Borrowed(text_style)
6126 };
6127
6128 if line.len() + line_chunk.len() > max_line_len {
6129 let mut chunk_len = max_line_len - line.len();
6130 while !line_chunk.is_char_boundary(chunk_len) {
6131 chunk_len -= 1;
6132 }
6133 line_chunk = &line_chunk[..chunk_len];
6134 line_exceeded_max_len = true;
6135 }
6136
6137 styles.push(TextRun {
6138 len: line_chunk.len(),
6139 font: text_style.font(),
6140 color: text_style.color,
6141 background_color: text_style.background_color,
6142 underline: text_style.underline,
6143 strikethrough: text_style.strikethrough,
6144 });
6145
6146 if editor_mode == EditorMode::Full {
6147 // Line wrap pads its contents with fake whitespaces,
6148 // avoid printing them
6149 let is_soft_wrapped = is_row_soft_wrapped(row);
6150 if highlighted_chunk.is_tab {
6151 if non_whitespace_added || !is_soft_wrapped {
6152 invisibles.push(Invisible::Tab {
6153 line_start_offset: line.len(),
6154 line_end_offset: line.len() + line_chunk.len(),
6155 });
6156 }
6157 } else {
6158 invisibles.extend(line_chunk.char_indices().filter_map(
6159 |(index, c)| {
6160 let is_whitespace = c.is_whitespace();
6161 non_whitespace_added |= !is_whitespace;
6162 if is_whitespace
6163 && (non_whitespace_added || !is_soft_wrapped)
6164 {
6165 Some(Invisible::Whitespace {
6166 line_offset: line.len() + index,
6167 })
6168 } else {
6169 None
6170 }
6171 },
6172 ))
6173 }
6174 }
6175
6176 line.push_str(line_chunk);
6177 }
6178 }
6179 }
6180 }
6181
6182 layouts
6183 }
6184
6185 #[allow(clippy::too_many_arguments)]
6186 fn prepaint(
6187 &mut self,
6188 line_height: Pixels,
6189 scroll_pixel_position: gpui::Point<Pixels>,
6190 row: DisplayRow,
6191 content_origin: gpui::Point<Pixels>,
6192 line_elements: &mut SmallVec<[AnyElement; 1]>,
6193 window: &mut Window,
6194 cx: &mut App,
6195 ) {
6196 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6197 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6198 for fragment in &mut self.fragments {
6199 match fragment {
6200 LineFragment::Text(line) => {
6201 fragment_origin.x += line.width;
6202 }
6203 LineFragment::Element { element, size, .. } => {
6204 let mut element = element
6205 .take()
6206 .expect("you can't prepaint LineWithInvisibles twice");
6207
6208 // Center the element vertically within the line.
6209 let mut element_origin = fragment_origin;
6210 element_origin.y += (line_height - size.height) / 2.;
6211 element.prepaint_at(element_origin, window, cx);
6212 line_elements.push(element);
6213
6214 fragment_origin.x += size.width;
6215 }
6216 }
6217 }
6218 }
6219
6220 #[allow(clippy::too_many_arguments)]
6221 fn draw(
6222 &self,
6223 layout: &EditorLayout,
6224 row: DisplayRow,
6225 content_origin: gpui::Point<Pixels>,
6226 whitespace_setting: ShowWhitespaceSetting,
6227 selection_ranges: &[Range<DisplayPoint>],
6228 window: &mut Window,
6229 cx: &mut App,
6230 ) {
6231 let line_height = layout.position_map.line_height;
6232 let line_y = line_height
6233 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6234
6235 let mut fragment_origin =
6236 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6237
6238 for fragment in &self.fragments {
6239 match fragment {
6240 LineFragment::Text(line) => {
6241 line.paint(fragment_origin, line_height, window, cx)
6242 .log_err();
6243 fragment_origin.x += line.width;
6244 }
6245 LineFragment::Element { size, .. } => {
6246 fragment_origin.x += size.width;
6247 }
6248 }
6249 }
6250
6251 self.draw_invisibles(
6252 selection_ranges,
6253 layout,
6254 content_origin,
6255 line_y,
6256 row,
6257 line_height,
6258 whitespace_setting,
6259 window,
6260 cx,
6261 );
6262 }
6263
6264 #[allow(clippy::too_many_arguments)]
6265 fn draw_invisibles(
6266 &self,
6267 selection_ranges: &[Range<DisplayPoint>],
6268 layout: &EditorLayout,
6269 content_origin: gpui::Point<Pixels>,
6270 line_y: Pixels,
6271 row: DisplayRow,
6272 line_height: Pixels,
6273 whitespace_setting: ShowWhitespaceSetting,
6274 window: &mut Window,
6275 cx: &mut App,
6276 ) {
6277 let extract_whitespace_info = |invisible: &Invisible| {
6278 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6279 Invisible::Tab {
6280 line_start_offset,
6281 line_end_offset,
6282 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6283 Invisible::Whitespace { line_offset } => {
6284 (*line_offset, line_offset + 1, &layout.space_invisible)
6285 }
6286 };
6287
6288 let x_offset = self.x_for_index(token_offset);
6289 let invisible_offset =
6290 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6291 let origin = content_origin
6292 + gpui::point(
6293 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6294 line_y,
6295 );
6296
6297 (
6298 [token_offset, token_end_offset],
6299 Box::new(move |window: &mut Window, cx: &mut App| {
6300 invisible_symbol
6301 .paint(origin, line_height, window, cx)
6302 .log_err();
6303 }),
6304 )
6305 };
6306
6307 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6308 match whitespace_setting {
6309 ShowWhitespaceSetting::None => (),
6310 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6311 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6312 let invisible_point = DisplayPoint::new(row, start as u32);
6313 if !selection_ranges
6314 .iter()
6315 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6316 {
6317 return;
6318 }
6319
6320 paint(window, cx);
6321 }),
6322
6323 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6324 // - It is a tab
6325 // - It is adjacent to an edge (start or end)
6326 // - It is adjacent to a whitespace (left or right)
6327 ShowWhitespaceSetting::Boundary => {
6328 // 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
6329 // the above cases.
6330 // Note: We zip in the original `invisibles` to check for tab equality
6331 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6332 for (([start, end], paint), invisible) in
6333 invisible_iter.zip_eq(self.invisibles.iter())
6334 {
6335 let should_render = match (&last_seen, invisible) {
6336 (_, Invisible::Tab { .. }) => true,
6337 (Some((_, last_end, _)), _) => *last_end == start,
6338 _ => false,
6339 };
6340
6341 if should_render || start == 0 || end == self.len {
6342 paint(window, cx);
6343
6344 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6345 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6346 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6347 // Note that we need to make sure that the last one is actually adjacent
6348 if !should_render_last && last_end == start {
6349 paint_last(window, cx);
6350 }
6351 }
6352 }
6353
6354 // Manually render anything within a selection
6355 let invisible_point = DisplayPoint::new(row, start as u32);
6356 if selection_ranges.iter().any(|region| {
6357 region.start <= invisible_point && invisible_point < region.end
6358 }) {
6359 paint(window, cx);
6360 }
6361
6362 last_seen = Some((should_render, end, paint));
6363 }
6364 }
6365 }
6366 }
6367
6368 pub fn x_for_index(&self, index: usize) -> Pixels {
6369 let mut fragment_start_x = Pixels::ZERO;
6370 let mut fragment_start_index = 0;
6371
6372 for fragment in &self.fragments {
6373 match fragment {
6374 LineFragment::Text(shaped_line) => {
6375 let fragment_end_index = fragment_start_index + shaped_line.len;
6376 if index < fragment_end_index {
6377 return fragment_start_x
6378 + shaped_line.x_for_index(index - fragment_start_index);
6379 }
6380 fragment_start_x += shaped_line.width;
6381 fragment_start_index = fragment_end_index;
6382 }
6383 LineFragment::Element { len, size, .. } => {
6384 let fragment_end_index = fragment_start_index + len;
6385 if index < fragment_end_index {
6386 return fragment_start_x;
6387 }
6388 fragment_start_x += size.width;
6389 fragment_start_index = fragment_end_index;
6390 }
6391 }
6392 }
6393
6394 fragment_start_x
6395 }
6396
6397 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6398 let mut fragment_start_x = Pixels::ZERO;
6399 let mut fragment_start_index = 0;
6400
6401 for fragment in &self.fragments {
6402 match fragment {
6403 LineFragment::Text(shaped_line) => {
6404 let fragment_end_x = fragment_start_x + shaped_line.width;
6405 if x < fragment_end_x {
6406 return Some(
6407 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6408 );
6409 }
6410 fragment_start_x = fragment_end_x;
6411 fragment_start_index += shaped_line.len;
6412 }
6413 LineFragment::Element { len, size, .. } => {
6414 let fragment_end_x = fragment_start_x + size.width;
6415 if x < fragment_end_x {
6416 return Some(fragment_start_index);
6417 }
6418 fragment_start_index += len;
6419 fragment_start_x = fragment_end_x;
6420 }
6421 }
6422 }
6423
6424 None
6425 }
6426
6427 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6428 let mut fragment_start_index = 0;
6429
6430 for fragment in &self.fragments {
6431 match fragment {
6432 LineFragment::Text(shaped_line) => {
6433 let fragment_end_index = fragment_start_index + shaped_line.len;
6434 if index < fragment_end_index {
6435 return shaped_line.font_id_for_index(index - fragment_start_index);
6436 }
6437 fragment_start_index = fragment_end_index;
6438 }
6439 LineFragment::Element { len, .. } => {
6440 let fragment_end_index = fragment_start_index + len;
6441 if index < fragment_end_index {
6442 return None;
6443 }
6444 fragment_start_index = fragment_end_index;
6445 }
6446 }
6447 }
6448
6449 None
6450 }
6451}
6452
6453#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6454enum Invisible {
6455 /// A tab character
6456 ///
6457 /// A tab character is internally represented by spaces (configured by the user's tab width)
6458 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6459 /// adjacency checks.
6460 Tab {
6461 line_start_offset: usize,
6462 line_end_offset: usize,
6463 },
6464 Whitespace {
6465 line_offset: usize,
6466 },
6467}
6468
6469impl EditorElement {
6470 /// Returns the rem size to use when rendering the [`EditorElement`].
6471 ///
6472 /// This allows UI elements to scale based on the `buffer_font_size`.
6473 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6474 match self.editor.read(cx).mode {
6475 EditorMode::Full => {
6476 let buffer_font_size = self.style.text.font_size;
6477 match buffer_font_size {
6478 AbsoluteLength::Pixels(pixels) => {
6479 let rem_size_scale = {
6480 // Our default UI font size is 14px on a 16px base scale.
6481 // This means the default UI font size is 0.875rems.
6482 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6483
6484 // We then determine the delta between a single rem and the default font
6485 // size scale.
6486 let default_font_size_delta = 1. - default_font_size_scale;
6487
6488 // Finally, we add this delta to 1rem to get the scale factor that
6489 // should be used to scale up the UI.
6490 1. + default_font_size_delta
6491 };
6492
6493 Some(pixels * rem_size_scale)
6494 }
6495 AbsoluteLength::Rems(rems) => {
6496 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6497 }
6498 }
6499 }
6500 // We currently use single-line and auto-height editors in UI contexts,
6501 // so we don't want to scale everything with the buffer font size, as it
6502 // ends up looking off.
6503 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6504 }
6505 }
6506}
6507
6508impl Element for EditorElement {
6509 type RequestLayoutState = ();
6510 type PrepaintState = EditorLayout;
6511
6512 fn id(&self) -> Option<ElementId> {
6513 None
6514 }
6515
6516 fn request_layout(
6517 &mut self,
6518 _: Option<&GlobalElementId>,
6519 window: &mut Window,
6520 cx: &mut App,
6521 ) -> (gpui::LayoutId, ()) {
6522 let rem_size = self.rem_size(cx);
6523 window.with_rem_size(rem_size, |window| {
6524 self.editor.update(cx, |editor, cx| {
6525 editor.set_style(self.style.clone(), window, cx);
6526
6527 let layout_id = match editor.mode {
6528 EditorMode::SingleLine { auto_width } => {
6529 let rem_size = window.rem_size();
6530
6531 let height = self.style.text.line_height_in_pixels(rem_size);
6532 if auto_width {
6533 let editor_handle = cx.entity().clone();
6534 let style = self.style.clone();
6535 window.request_measured_layout(
6536 Style::default(),
6537 move |_, _, window, cx| {
6538 let editor_snapshot = editor_handle
6539 .update(cx, |editor, cx| editor.snapshot(window, cx));
6540 let line = Self::layout_lines(
6541 DisplayRow(0)..DisplayRow(1),
6542 &editor_snapshot,
6543 &style,
6544 px(f32::MAX),
6545 |_| false, // Single lines never soft wrap
6546 window,
6547 cx,
6548 )
6549 .pop()
6550 .unwrap();
6551
6552 let font_id =
6553 window.text_system().resolve_font(&style.text.font());
6554 let font_size =
6555 style.text.font_size.to_pixels(window.rem_size());
6556 let em_width =
6557 window.text_system().em_width(font_id, font_size).unwrap();
6558
6559 size(line.width + em_width, height)
6560 },
6561 )
6562 } else {
6563 let mut style = Style::default();
6564 style.size.height = height.into();
6565 style.size.width = relative(1.).into();
6566 window.request_layout(style, None, cx)
6567 }
6568 }
6569 EditorMode::AutoHeight { max_lines } => {
6570 let editor_handle = cx.entity().clone();
6571 let max_line_number_width =
6572 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6573 window.request_measured_layout(
6574 Style::default(),
6575 move |known_dimensions, available_space, window, cx| {
6576 editor_handle
6577 .update(cx, |editor, cx| {
6578 compute_auto_height_layout(
6579 editor,
6580 max_lines,
6581 max_line_number_width,
6582 known_dimensions,
6583 available_space.width,
6584 window,
6585 cx,
6586 )
6587 })
6588 .unwrap_or_default()
6589 },
6590 )
6591 }
6592 EditorMode::Full => {
6593 let mut style = Style::default();
6594 style.size.width = relative(1.).into();
6595 style.size.height = relative(1.).into();
6596 window.request_layout(style, None, cx)
6597 }
6598 };
6599
6600 (layout_id, ())
6601 })
6602 })
6603 }
6604
6605 fn prepaint(
6606 &mut self,
6607 _: Option<&GlobalElementId>,
6608 bounds: Bounds<Pixels>,
6609 _: &mut Self::RequestLayoutState,
6610 window: &mut Window,
6611 cx: &mut App,
6612 ) -> Self::PrepaintState {
6613 let text_style = TextStyleRefinement {
6614 font_size: Some(self.style.text.font_size),
6615 line_height: Some(self.style.text.line_height),
6616 ..Default::default()
6617 };
6618 let focus_handle = self.editor.focus_handle(cx);
6619 window.set_view_id(self.editor.entity_id());
6620 window.set_focus_handle(&focus_handle, cx);
6621
6622 let rem_size = self.rem_size(cx);
6623 window.with_rem_size(rem_size, |window| {
6624 window.with_text_style(Some(text_style), |window| {
6625 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6626 let mut snapshot = self
6627 .editor
6628 .update(cx, |editor, cx| editor.snapshot(window, cx));
6629 let style = self.style.clone();
6630
6631 let font_id = window.text_system().resolve_font(&style.text.font());
6632 let font_size = style.text.font_size.to_pixels(window.rem_size());
6633 let line_height = style.text.line_height_in_pixels(window.rem_size());
6634 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6635 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6636
6637 let letter_size = size(em_width, line_height);
6638
6639 let gutter_dimensions = snapshot
6640 .gutter_dimensions(
6641 font_id,
6642 font_size,
6643 self.max_line_number_width(&snapshot, window, cx),
6644 cx,
6645 )
6646 .unwrap_or_default();
6647 let text_width = bounds.size.width - gutter_dimensions.width;
6648
6649 let editor_width =
6650 text_width - gutter_dimensions.margin - em_width - style.scrollbar_width;
6651
6652 snapshot = self.editor.update(cx, |editor, cx| {
6653 editor.last_bounds = Some(bounds);
6654 editor.gutter_dimensions = gutter_dimensions;
6655 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6656
6657 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6658 snapshot
6659 } else {
6660 let wrap_width = match editor.soft_wrap_mode(cx) {
6661 SoftWrap::GitDiff => None,
6662 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6663 SoftWrap::EditorWidth => Some(editor_width),
6664 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6665 SoftWrap::Bounded(column) => {
6666 Some(editor_width.min(column as f32 * em_advance))
6667 }
6668 };
6669
6670 if editor.set_wrap_width(wrap_width, cx) {
6671 editor.snapshot(window, cx)
6672 } else {
6673 snapshot
6674 }
6675 }
6676 });
6677
6678 let wrap_guides = self
6679 .editor
6680 .read(cx)
6681 .wrap_guides(cx)
6682 .iter()
6683 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6684 .collect::<SmallVec<[_; 2]>>();
6685
6686 let hitbox = window.insert_hitbox(bounds, false);
6687 let gutter_hitbox =
6688 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6689 let text_hitbox = window.insert_hitbox(
6690 Bounds {
6691 origin: gutter_hitbox.top_right(),
6692 size: size(text_width, bounds.size.height),
6693 },
6694 false,
6695 );
6696 // Offset the content_bounds from the text_bounds by the gutter margin (which
6697 // is roughly half a character wide) to make hit testing work more like how we want.
6698 let content_origin =
6699 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6700
6701 let scrollbar_bounds =
6702 Bounds::from_corners(content_origin, bounds.bottom_right());
6703
6704 let height_in_lines = scrollbar_bounds.size.height / line_height;
6705
6706 // NOTE: The max row number in the current file, minus one
6707 let max_row = snapshot.max_point().row().as_f32();
6708
6709 // NOTE: The max scroll position for the top of the window
6710 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6711 (max_row - height_in_lines + 1.).max(0.)
6712 } else {
6713 let settings = EditorSettings::get_global(cx);
6714 match settings.scroll_beyond_last_line {
6715 ScrollBeyondLastLine::OnePage => max_row,
6716 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6717 ScrollBeyondLastLine::VerticalScrollMargin => {
6718 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6719 .max(0.)
6720 }
6721 }
6722 };
6723
6724 // TODO: Autoscrolling for both axes
6725 let mut autoscroll_request = None;
6726 let mut autoscroll_containing_element = false;
6727 let mut autoscroll_horizontally = false;
6728 self.editor.update(cx, |editor, cx| {
6729 autoscroll_request = editor.autoscroll_request();
6730 autoscroll_containing_element =
6731 autoscroll_request.is_some() || editor.has_pending_selection();
6732 // TODO: Is this horizontal or vertical?!
6733 autoscroll_horizontally = editor.autoscroll_vertically(
6734 bounds,
6735 line_height,
6736 max_scroll_top,
6737 window,
6738 cx,
6739 );
6740 snapshot = editor.snapshot(window, cx);
6741 });
6742
6743 let mut scroll_position = snapshot.scroll_position();
6744 // The scroll position is a fractional point, the whole number of which represents
6745 // the top of the window in terms of display rows.
6746 let start_row = DisplayRow(scroll_position.y as u32);
6747 let max_row = snapshot.max_point().row();
6748 let end_row = cmp::min(
6749 (scroll_position.y + height_in_lines).ceil() as u32,
6750 max_row.next_row().0,
6751 );
6752 let end_row = DisplayRow(end_row);
6753
6754 let row_infos = snapshot
6755 .row_infos(start_row)
6756 .take((start_row..end_row).len())
6757 .collect::<Vec<RowInfo>>();
6758 let is_row_soft_wrapped = |row: usize| {
6759 row_infos
6760 .get(row)
6761 .map_or(true, |info| info.buffer_row.is_none())
6762 };
6763
6764 let start_anchor = if start_row == Default::default() {
6765 Anchor::min()
6766 } else {
6767 snapshot.buffer_snapshot.anchor_before(
6768 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6769 )
6770 };
6771 let end_anchor = if end_row > max_row {
6772 Anchor::max()
6773 } else {
6774 snapshot.buffer_snapshot.anchor_before(
6775 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6776 )
6777 };
6778
6779 let mut highlighted_rows = self
6780 .editor
6781 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6782
6783 let is_light = cx.theme().appearance().is_light();
6784 let hunk_style = ProjectSettings::get_global(cx)
6785 .git
6786 .hunk_style
6787 .unwrap_or_default();
6788
6789 for (ix, row_info) in row_infos.iter().enumerate() {
6790 let Some(diff_status) = row_info.diff_status else {
6791 continue;
6792 };
6793
6794 let background_color = match diff_status.kind {
6795 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
6796 DiffHunkStatusKind::Deleted => {
6797 cx.theme().colors().version_control_deleted
6798 }
6799 DiffHunkStatusKind::Modified => {
6800 debug_panic!("modified diff status for row info");
6801 continue;
6802 }
6803 };
6804
6805 let unstaged = diff_status.has_secondary_hunk();
6806 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
6807 let slash_width = line_height.0 / 1.5; // ~16 by default
6808
6809 let staged_highlight: LineHighlight = match hunk_style {
6810 GitHunkStyleSetting::Transparent
6811 | GitHunkStyleSetting::Pattern
6812 | GitHunkStyleSetting::Border => {
6813 solid_background(background_color.opacity(hunk_opacity)).into()
6814 }
6815 GitHunkStyleSetting::StagedPattern => {
6816 pattern_slash(background_color.opacity(hunk_opacity), slash_width)
6817 .into()
6818 }
6819 GitHunkStyleSetting::StagedTransparent => {
6820 solid_background(background_color.opacity(if is_light {
6821 0.08
6822 } else {
6823 0.04
6824 }))
6825 .into()
6826 }
6827 GitHunkStyleSetting::StagedBorder => LineHighlight {
6828 background: (background_color.opacity(if is_light {
6829 0.08
6830 } else {
6831 0.06
6832 }))
6833 .into(),
6834 border: Some(if is_light {
6835 background_color.opacity(0.48)
6836 } else {
6837 background_color.opacity(0.36)
6838 }),
6839 },
6840 };
6841
6842 let unstaged_highlight = match hunk_style {
6843 GitHunkStyleSetting::Transparent => {
6844 solid_background(background_color.opacity(if is_light {
6845 0.08
6846 } else {
6847 0.04
6848 }))
6849 .into()
6850 }
6851 GitHunkStyleSetting::Pattern => {
6852 pattern_slash(background_color.opacity(hunk_opacity), slash_width)
6853 .into()
6854 }
6855 GitHunkStyleSetting::Border => LineHighlight {
6856 background: (background_color.opacity(if is_light {
6857 0.08
6858 } else {
6859 0.02
6860 }))
6861 .into(),
6862 border: Some(background_color.opacity(0.5)),
6863 },
6864 GitHunkStyleSetting::StagedPattern
6865 | GitHunkStyleSetting::StagedTransparent
6866 | GitHunkStyleSetting::StagedBorder => {
6867 solid_background(background_color.opacity(hunk_opacity)).into()
6868 }
6869 };
6870
6871 let background = if unstaged {
6872 unstaged_highlight
6873 } else {
6874 staged_highlight
6875 };
6876
6877 highlighted_rows
6878 .entry(start_row + DisplayRow(ix as u32))
6879 .or_insert(background);
6880 }
6881
6882 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6883 start_anchor..end_anchor,
6884 &snapshot.display_snapshot,
6885 cx.theme().colors(),
6886 );
6887 let highlighted_gutter_ranges =
6888 self.editor.read(cx).gutter_highlights_in_range(
6889 start_anchor..end_anchor,
6890 &snapshot.display_snapshot,
6891 cx,
6892 );
6893
6894 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6895 start_anchor..end_anchor,
6896 &snapshot.display_snapshot,
6897 cx,
6898 );
6899
6900 let (local_selections, selected_buffer_ids): (
6901 Vec<Selection<Point>>,
6902 Vec<BufferId>,
6903 ) = self.editor.update(cx, |editor, cx| {
6904 let all_selections = editor.selections.all::<Point>(cx);
6905 let selected_buffer_ids = if editor.is_singleton(cx) {
6906 Vec::new()
6907 } else {
6908 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6909
6910 for selection in all_selections {
6911 for buffer_id in snapshot
6912 .buffer_snapshot
6913 .buffer_ids_for_range(selection.range())
6914 {
6915 if selected_buffer_ids.last() != Some(&buffer_id) {
6916 selected_buffer_ids.push(buffer_id);
6917 }
6918 }
6919 }
6920
6921 selected_buffer_ids
6922 };
6923
6924 let mut selections = editor
6925 .selections
6926 .disjoint_in_range(start_anchor..end_anchor, cx);
6927 selections.extend(editor.selections.pending(cx));
6928
6929 (selections, selected_buffer_ids)
6930 });
6931
6932 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6933 start_anchor,
6934 end_anchor,
6935 &local_selections,
6936 &snapshot,
6937 start_row,
6938 end_row,
6939 window,
6940 cx,
6941 );
6942
6943 let line_numbers = self.layout_line_numbers(
6944 Some(&gutter_hitbox),
6945 gutter_dimensions,
6946 line_height,
6947 scroll_position,
6948 start_row..end_row,
6949 &row_infos,
6950 newest_selection_head,
6951 &snapshot,
6952 window,
6953 cx,
6954 );
6955
6956 let mut crease_toggles =
6957 window.with_element_namespace("crease_toggles", |window| {
6958 self.layout_crease_toggles(
6959 start_row..end_row,
6960 &row_infos,
6961 &active_rows,
6962 &snapshot,
6963 window,
6964 cx,
6965 )
6966 });
6967 let crease_trailers =
6968 window.with_element_namespace("crease_trailers", |window| {
6969 self.layout_crease_trailers(
6970 row_infos.iter().copied(),
6971 &snapshot,
6972 window,
6973 cx,
6974 )
6975 });
6976
6977 let display_hunks = self.layout_gutter_diff_hunks(
6978 line_height,
6979 &gutter_hitbox,
6980 start_row..end_row,
6981 &snapshot,
6982 window,
6983 cx,
6984 );
6985
6986 let mut line_layouts = Self::layout_lines(
6987 start_row..end_row,
6988 &snapshot,
6989 &self.style,
6990 editor_width,
6991 is_row_soft_wrapped,
6992 window,
6993 cx,
6994 );
6995
6996 let longest_line_blame_width = self
6997 .editor
6998 .update(cx, |editor, cx| {
6999 if !editor.show_git_blame_inline {
7000 return None;
7001 }
7002 let blame = editor.blame.as_ref()?;
7003 let blame_entry = blame
7004 .update(cx, |blame, cx| {
7005 let row_infos =
7006 snapshot.row_infos(snapshot.longest_row()).next()?;
7007 blame.blame_for_rows(&[row_infos], cx).next()
7008 })
7009 .flatten()?;
7010 let mut element = render_inline_blame_entry(
7011 self.editor.clone(),
7012 blame,
7013 blame_entry,
7014 &style,
7015 cx,
7016 );
7017 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7018 Some(
7019 element
7020 .layout_as_root(AvailableSpace::min_size(), window, cx)
7021 .width
7022 + inline_blame_padding,
7023 )
7024 })
7025 .unwrap_or(Pixels::ZERO);
7026
7027 let longest_line_width = layout_line(
7028 snapshot.longest_row(),
7029 &snapshot,
7030 &style,
7031 editor_width,
7032 is_row_soft_wrapped,
7033 window,
7034 cx,
7035 )
7036 .width;
7037
7038 let scrollbar_range_data = ScrollbarRangeData::new(
7039 scrollbar_bounds,
7040 letter_size,
7041 &snapshot,
7042 longest_line_width,
7043 longest_line_blame_width,
7044 &style,
7045 editor_width,
7046 cx,
7047 );
7048
7049 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7050 let mut scroll_width = scroll_range_bounds.size.width;
7051
7052 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7053 snapshot.sticky_header_excerpt(start_row)
7054 } else {
7055 None
7056 };
7057 let sticky_header_excerpt_id =
7058 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7059
7060 let blocks = window.with_element_namespace("blocks", |window| {
7061 self.render_blocks(
7062 start_row..end_row,
7063 &snapshot,
7064 &hitbox,
7065 &text_hitbox,
7066 editor_width,
7067 &mut scroll_width,
7068 &gutter_dimensions,
7069 em_width,
7070 gutter_dimensions.full_width(),
7071 line_height,
7072 &line_layouts,
7073 &local_selections,
7074 &selected_buffer_ids,
7075 is_row_soft_wrapped,
7076 sticky_header_excerpt_id,
7077 window,
7078 cx,
7079 )
7080 });
7081 let mut blocks = match blocks {
7082 Ok(blocks) => blocks,
7083 Err(resized_blocks) => {
7084 self.editor.update(cx, |editor, cx| {
7085 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7086 });
7087 return self.prepaint(None, bounds, &mut (), window, cx);
7088 }
7089 };
7090
7091 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7092 window.with_element_namespace("blocks", |window| {
7093 self.layout_sticky_buffer_header(
7094 sticky_header_excerpt,
7095 scroll_position.y,
7096 line_height,
7097 &snapshot,
7098 &hitbox,
7099 &selected_buffer_ids,
7100 window,
7101 cx,
7102 )
7103 })
7104 });
7105
7106 let start_buffer_row =
7107 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7108 let end_buffer_row =
7109 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7110
7111 let scroll_max = point(
7112 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7113 max_row.as_f32(),
7114 );
7115
7116 self.editor.update(cx, |editor, cx| {
7117 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7118
7119 let autoscrolled = if autoscroll_horizontally {
7120 editor.autoscroll_horizontally(
7121 start_row,
7122 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7123 scroll_width,
7124 em_width,
7125 &line_layouts,
7126 cx,
7127 )
7128 } else {
7129 false
7130 };
7131
7132 if clamped || autoscrolled {
7133 snapshot = editor.snapshot(window, cx);
7134 scroll_position = snapshot.scroll_position();
7135 }
7136 });
7137
7138 let scroll_pixel_position = point(
7139 scroll_position.x * em_width,
7140 scroll_position.y * line_height,
7141 );
7142
7143 let indent_guides = self.layout_indent_guides(
7144 content_origin,
7145 text_hitbox.origin,
7146 start_buffer_row..end_buffer_row,
7147 scroll_pixel_position,
7148 line_height,
7149 &snapshot,
7150 window,
7151 cx,
7152 );
7153
7154 let crease_trailers =
7155 window.with_element_namespace("crease_trailers", |window| {
7156 self.prepaint_crease_trailers(
7157 crease_trailers,
7158 &line_layouts,
7159 line_height,
7160 content_origin,
7161 scroll_pixel_position,
7162 em_width,
7163 window,
7164 cx,
7165 )
7166 });
7167
7168 let (inline_completion_popover, inline_completion_popover_origin) = self
7169 .editor
7170 .update(cx, |editor, cx| {
7171 editor.render_edit_prediction_popover(
7172 &text_hitbox.bounds,
7173 content_origin,
7174 &snapshot,
7175 start_row..end_row,
7176 scroll_position.y,
7177 scroll_position.y + height_in_lines,
7178 &line_layouts,
7179 line_height,
7180 scroll_pixel_position,
7181 newest_selection_head,
7182 editor_width,
7183 &style,
7184 window,
7185 cx,
7186 )
7187 })
7188 .unzip();
7189
7190 let mut inline_diagnostics = self.layout_inline_diagnostics(
7191 &line_layouts,
7192 &crease_trailers,
7193 content_origin,
7194 scroll_pixel_position,
7195 inline_completion_popover_origin,
7196 start_row,
7197 end_row,
7198 line_height,
7199 em_width,
7200 &style,
7201 window,
7202 cx,
7203 );
7204
7205 let mut inline_blame = None;
7206 if let Some(newest_selection_head) = newest_selection_head {
7207 let display_row = newest_selection_head.row();
7208 if (start_row..end_row).contains(&display_row) {
7209 let line_ix = display_row.minus(start_row) as usize;
7210 let row_info = &row_infos[line_ix];
7211 let line_layout = &line_layouts[line_ix];
7212 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7213 inline_blame = self.layout_inline_blame(
7214 display_row,
7215 row_info,
7216 line_layout,
7217 crease_trailer_layout,
7218 em_width,
7219 content_origin,
7220 scroll_pixel_position,
7221 line_height,
7222 window,
7223 cx,
7224 );
7225 if inline_blame.is_some() {
7226 // Blame overrides inline diagnostics
7227 inline_diagnostics.remove(&display_row);
7228 }
7229 }
7230 }
7231
7232 let blamed_display_rows = self.layout_blame_entries(
7233 &row_infos,
7234 em_width,
7235 scroll_position,
7236 line_height,
7237 &gutter_hitbox,
7238 gutter_dimensions.git_blame_entries_width,
7239 window,
7240 cx,
7241 );
7242
7243 let scroll_max = point(
7244 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7245 max_scroll_top,
7246 );
7247
7248 self.editor.update(cx, |editor, cx| {
7249 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7250
7251 let autoscrolled = if autoscroll_horizontally {
7252 editor.autoscroll_horizontally(
7253 start_row,
7254 editor_width - (letter_size.width / 2.0) + style.scrollbar_width,
7255 scroll_width,
7256 em_width,
7257 &line_layouts,
7258 cx,
7259 )
7260 } else {
7261 false
7262 };
7263
7264 if clamped || autoscrolled {
7265 snapshot = editor.snapshot(window, cx);
7266 scroll_position = snapshot.scroll_position();
7267 }
7268 });
7269
7270 let line_elements = self.prepaint_lines(
7271 start_row,
7272 &mut line_layouts,
7273 line_height,
7274 scroll_pixel_position,
7275 content_origin,
7276 window,
7277 cx,
7278 );
7279
7280 let mut block_start_rows = HashSet::default();
7281
7282 window.with_element_namespace("blocks", |window| {
7283 self.layout_blocks(
7284 &mut blocks,
7285 &mut block_start_rows,
7286 &hitbox,
7287 line_height,
7288 scroll_pixel_position,
7289 window,
7290 cx,
7291 );
7292 });
7293
7294 let cursors = self.collect_cursors(&snapshot, cx);
7295 let visible_row_range = start_row..end_row;
7296 let non_visible_cursors = cursors
7297 .iter()
7298 .any(|c| !visible_row_range.contains(&c.0.row()));
7299
7300 let visible_cursors = self.layout_visible_cursors(
7301 &snapshot,
7302 &selections,
7303 &block_start_rows,
7304 start_row..end_row,
7305 &line_layouts,
7306 &text_hitbox,
7307 content_origin,
7308 scroll_position,
7309 scroll_pixel_position,
7310 line_height,
7311 em_width,
7312 em_advance,
7313 autoscroll_containing_element,
7314 window,
7315 cx,
7316 );
7317
7318 let scrollbars_layout = self.layout_scrollbars(
7319 &snapshot,
7320 scrollbar_range_data,
7321 scroll_position,
7322 non_visible_cursors,
7323 window,
7324 cx,
7325 );
7326
7327 let gutter_settings = EditorSettings::get_global(cx).gutter;
7328
7329 let mut code_actions_indicator = None;
7330 if let Some(newest_selection_head) = newest_selection_head {
7331 let newest_selection_point =
7332 newest_selection_head.to_point(&snapshot.display_snapshot);
7333
7334 if (start_row..end_row).contains(&newest_selection_head.row()) {
7335 self.layout_cursor_popovers(
7336 line_height,
7337 &text_hitbox,
7338 content_origin,
7339 start_row,
7340 scroll_pixel_position,
7341 &line_layouts,
7342 newest_selection_head,
7343 newest_selection_point,
7344 &style,
7345 window,
7346 cx,
7347 );
7348
7349 let show_code_actions = snapshot
7350 .show_code_actions
7351 .unwrap_or(gutter_settings.code_actions);
7352 if show_code_actions {
7353 let newest_selection_point =
7354 newest_selection_head.to_point(&snapshot.display_snapshot);
7355 if !snapshot
7356 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7357 {
7358 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7359 MultiBufferRow(newest_selection_point.row),
7360 );
7361 if let Some((buffer, range)) = buffer {
7362 let buffer_id = buffer.remote_id();
7363 let row = range.start.row;
7364 let has_test_indicator = self
7365 .editor
7366 .read(cx)
7367 .tasks
7368 .contains_key(&(buffer_id, row));
7369
7370 if !has_test_indicator {
7371 code_actions_indicator = self
7372 .layout_code_actions_indicator(
7373 line_height,
7374 newest_selection_head,
7375 scroll_pixel_position,
7376 &gutter_dimensions,
7377 &gutter_hitbox,
7378 &display_hunks,
7379 window,
7380 cx,
7381 );
7382 }
7383 }
7384 }
7385 }
7386 }
7387 }
7388
7389 self.layout_gutter_menu(
7390 line_height,
7391 &text_hitbox,
7392 content_origin,
7393 scroll_pixel_position,
7394 gutter_dimensions.width - gutter_dimensions.left_padding,
7395 window,
7396 cx,
7397 );
7398
7399 let test_indicators = if gutter_settings.runnables {
7400 self.layout_run_indicators(
7401 line_height,
7402 start_row..end_row,
7403 scroll_pixel_position,
7404 &gutter_dimensions,
7405 &gutter_hitbox,
7406 &display_hunks,
7407 &snapshot,
7408 window,
7409 cx,
7410 )
7411 } else {
7412 Vec::new()
7413 };
7414
7415 self.layout_signature_help(
7416 &hitbox,
7417 content_origin,
7418 scroll_pixel_position,
7419 newest_selection_head,
7420 start_row,
7421 &line_layouts,
7422 line_height,
7423 em_width,
7424 window,
7425 cx,
7426 );
7427
7428 if !cx.has_active_drag() {
7429 self.layout_hover_popovers(
7430 &snapshot,
7431 &hitbox,
7432 &text_hitbox,
7433 start_row..end_row,
7434 content_origin,
7435 scroll_pixel_position,
7436 &line_layouts,
7437 line_height,
7438 em_width,
7439 window,
7440 cx,
7441 );
7442 }
7443
7444 let mouse_context_menu = self.layout_mouse_context_menu(
7445 &snapshot,
7446 start_row..end_row,
7447 content_origin,
7448 window,
7449 cx,
7450 );
7451
7452 window.with_element_namespace("crease_toggles", |window| {
7453 self.prepaint_crease_toggles(
7454 &mut crease_toggles,
7455 line_height,
7456 &gutter_dimensions,
7457 gutter_settings,
7458 scroll_pixel_position,
7459 &gutter_hitbox,
7460 window,
7461 cx,
7462 )
7463 });
7464
7465 let invisible_symbol_font_size = font_size / 2.;
7466 let tab_invisible = window
7467 .text_system()
7468 .shape_line(
7469 "→".into(),
7470 invisible_symbol_font_size,
7471 &[TextRun {
7472 len: "→".len(),
7473 font: self.style.text.font(),
7474 color: cx.theme().colors().editor_invisible,
7475 background_color: None,
7476 underline: None,
7477 strikethrough: None,
7478 }],
7479 )
7480 .unwrap();
7481 let space_invisible = window
7482 .text_system()
7483 .shape_line(
7484 "•".into(),
7485 invisible_symbol_font_size,
7486 &[TextRun {
7487 len: "•".len(),
7488 font: self.style.text.font(),
7489 color: cx.theme().colors().editor_invisible,
7490 background_color: None,
7491 underline: None,
7492 strikethrough: None,
7493 }],
7494 )
7495 .unwrap();
7496
7497 let mode = snapshot.mode;
7498
7499 let position_map = Rc::new(PositionMap {
7500 size: bounds.size,
7501 visible_row_range,
7502 scroll_pixel_position,
7503 scroll_max,
7504 line_layouts,
7505 line_height,
7506 em_width,
7507 em_advance,
7508 snapshot,
7509 gutter_hitbox: gutter_hitbox.clone(),
7510 text_hitbox: text_hitbox.clone(),
7511 });
7512
7513 self.editor.update(cx, |editor, _| {
7514 editor.last_position_map = Some(position_map.clone())
7515 });
7516
7517 let diff_hunk_controls = self.layout_diff_hunk_controls(
7518 start_row..end_row,
7519 &row_infos,
7520 &text_hitbox,
7521 &position_map,
7522 newest_selection_head,
7523 line_height,
7524 scroll_pixel_position,
7525 &display_hunks,
7526 self.editor.clone(),
7527 window,
7528 cx,
7529 );
7530
7531 EditorLayout {
7532 mode,
7533 position_map,
7534 visible_display_row_range: start_row..end_row,
7535 wrap_guides,
7536 indent_guides,
7537 hitbox,
7538 gutter_hitbox,
7539 display_hunks,
7540 content_origin,
7541 scrollbars_layout,
7542 active_rows,
7543 highlighted_rows,
7544 highlighted_ranges,
7545 highlighted_gutter_ranges,
7546 redacted_ranges,
7547 line_elements,
7548 line_numbers,
7549 blamed_display_rows,
7550 inline_diagnostics,
7551 inline_blame,
7552 blocks,
7553 cursors,
7554 visible_cursors,
7555 selections,
7556 inline_completion_popover,
7557 diff_hunk_controls,
7558 mouse_context_menu,
7559 test_indicators,
7560 code_actions_indicator,
7561 crease_toggles,
7562 crease_trailers,
7563 tab_invisible,
7564 space_invisible,
7565 sticky_buffer_header,
7566 }
7567 })
7568 })
7569 })
7570 }
7571
7572 fn paint(
7573 &mut self,
7574 _: Option<&GlobalElementId>,
7575 bounds: Bounds<gpui::Pixels>,
7576 _: &mut Self::RequestLayoutState,
7577 layout: &mut Self::PrepaintState,
7578 window: &mut Window,
7579 cx: &mut App,
7580 ) {
7581 let focus_handle = self.editor.focus_handle(cx);
7582 let key_context = self
7583 .editor
7584 .update(cx, |editor, cx| editor.key_context(window, cx));
7585
7586 window.set_key_context(key_context);
7587 window.handle_input(
7588 &focus_handle,
7589 ElementInputHandler::new(bounds, self.editor.clone()),
7590 cx,
7591 );
7592 self.register_actions(window, cx);
7593 self.register_key_listeners(window, cx, layout);
7594
7595 let text_style = TextStyleRefinement {
7596 font_size: Some(self.style.text.font_size),
7597 line_height: Some(self.style.text.line_height),
7598 ..Default::default()
7599 };
7600 let rem_size = self.rem_size(cx);
7601 window.with_rem_size(rem_size, |window| {
7602 window.with_text_style(Some(text_style), |window| {
7603 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7604 self.paint_mouse_listeners(layout, window, cx);
7605 self.paint_background(layout, window, cx);
7606 self.paint_indent_guides(layout, window, cx);
7607
7608 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7609 self.paint_blamed_display_rows(layout, window, cx);
7610 self.paint_line_numbers(layout, window, cx);
7611 }
7612
7613 self.paint_text(layout, window, cx);
7614
7615 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7616 self.paint_gutter_highlights(layout, window, cx);
7617 self.paint_gutter_indicators(layout, window, cx);
7618 }
7619
7620 if !layout.blocks.is_empty() {
7621 window.with_element_namespace("blocks", |window| {
7622 self.paint_blocks(layout, window, cx);
7623 });
7624 }
7625
7626 window.with_element_namespace("blocks", |window| {
7627 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7628 sticky_header.paint(window, cx)
7629 }
7630 });
7631
7632 self.paint_scrollbars(layout, window, cx);
7633 self.paint_inline_completion_popover(layout, window, cx);
7634 self.paint_mouse_context_menu(layout, window, cx);
7635 });
7636 })
7637 })
7638 }
7639}
7640
7641pub(super) fn gutter_bounds(
7642 editor_bounds: Bounds<Pixels>,
7643 gutter_dimensions: GutterDimensions,
7644) -> Bounds<Pixels> {
7645 Bounds {
7646 origin: editor_bounds.origin,
7647 size: size(gutter_dimensions.width, editor_bounds.size.height),
7648 }
7649}
7650
7651struct ScrollbarRangeData {
7652 scrollbar_bounds: Bounds<Pixels>,
7653 scroll_range: Bounds<Pixels>,
7654 letter_size: Size<Pixels>,
7655}
7656
7657impl ScrollbarRangeData {
7658 #[allow(clippy::too_many_arguments)]
7659 pub fn new(
7660 scrollbar_bounds: Bounds<Pixels>,
7661 letter_size: Size<Pixels>,
7662 snapshot: &EditorSnapshot,
7663 longest_line_width: Pixels,
7664 longest_line_blame_width: Pixels,
7665 style: &EditorStyle,
7666 editor_width: Pixels,
7667 cx: &mut App,
7668 ) -> ScrollbarRangeData {
7669 // TODO: Simplify this function down, it requires a lot of parameters
7670 let max_row = snapshot.max_point().row();
7671 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7672
7673 let settings = EditorSettings::get_global(cx);
7674 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7675 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7676 ScrollBeyondLastLine::Off => px(1.),
7677 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7678 };
7679
7680 let right_margin = if longest_line_width + longest_line_blame_width >= editor_width {
7681 letter_size.width + style.scrollbar_width
7682 } else {
7683 px(0.0)
7684 };
7685
7686 let overscroll = size(
7687 right_margin + longest_line_blame_width,
7688 letter_size.height * scroll_beyond_last_line,
7689 );
7690
7691 let scroll_range = Bounds {
7692 origin: scrollbar_bounds.origin,
7693 size: text_bounds_size + overscroll,
7694 };
7695
7696 ScrollbarRangeData {
7697 scrollbar_bounds,
7698 scroll_range,
7699 letter_size,
7700 }
7701 }
7702}
7703
7704impl IntoElement for EditorElement {
7705 type Element = Self;
7706
7707 fn into_element(self) -> Self::Element {
7708 self
7709 }
7710}
7711
7712pub struct EditorLayout {
7713 position_map: Rc<PositionMap>,
7714 hitbox: Hitbox,
7715 gutter_hitbox: Hitbox,
7716 content_origin: gpui::Point<Pixels>,
7717 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7718 mode: EditorMode,
7719 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7720 indent_guides: Option<Vec<IndentGuideLayout>>,
7721 visible_display_row_range: Range<DisplayRow>,
7722 active_rows: BTreeMap<DisplayRow, bool>,
7723 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
7724 line_elements: SmallVec<[AnyElement; 1]>,
7725 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7726 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7727 blamed_display_rows: Option<Vec<AnyElement>>,
7728 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
7729 inline_blame: Option<AnyElement>,
7730 blocks: Vec<BlockLayout>,
7731 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7732 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7733 redacted_ranges: Vec<Range<DisplayPoint>>,
7734 cursors: Vec<(DisplayPoint, Hsla)>,
7735 visible_cursors: Vec<CursorLayout>,
7736 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7737 code_actions_indicator: Option<AnyElement>,
7738 test_indicators: Vec<AnyElement>,
7739 crease_toggles: Vec<Option<AnyElement>>,
7740 diff_hunk_controls: Vec<AnyElement>,
7741 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7742 inline_completion_popover: Option<AnyElement>,
7743 mouse_context_menu: Option<AnyElement>,
7744 tab_invisible: ShapedLine,
7745 space_invisible: ShapedLine,
7746 sticky_buffer_header: Option<AnyElement>,
7747}
7748
7749impl EditorLayout {
7750 fn line_end_overshoot(&self) -> Pixels {
7751 0.15 * self.position_map.line_height
7752 }
7753}
7754
7755struct LineNumberLayout {
7756 shaped_line: ShapedLine,
7757 hitbox: Option<Hitbox>,
7758 display_row: DisplayRow,
7759}
7760
7761struct ColoredRange<T> {
7762 start: T,
7763 end: T,
7764 color: Hsla,
7765}
7766
7767#[derive(Clone)]
7768struct ScrollbarLayout {
7769 hitbox: Hitbox,
7770 visible_range: Range<f32>,
7771 visible: bool,
7772 text_unit_size: Pixels,
7773 thumb_size: Pixels,
7774 axis: Axis,
7775}
7776
7777impl ScrollbarLayout {
7778 const BORDER_WIDTH: Pixels = px(1.0);
7779 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7780 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7781 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7782
7783 fn thumb_bounds(&self) -> Bounds<Pixels> {
7784 match self.axis {
7785 Axis::Vertical => {
7786 let thumb_top = self.y_for_row(self.visible_range.start);
7787 let thumb_bottom = thumb_top + self.thumb_size;
7788 Bounds::from_corners(
7789 point(self.hitbox.left(), thumb_top),
7790 point(self.hitbox.right(), thumb_bottom),
7791 )
7792 }
7793 Axis::Horizontal => {
7794 let thumb_left =
7795 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7796 let thumb_right = thumb_left + self.thumb_size;
7797 Bounds::from_corners(
7798 point(thumb_left, self.hitbox.top()),
7799 point(thumb_right, self.hitbox.bottom()),
7800 )
7801 }
7802 }
7803 }
7804
7805 fn y_for_row(&self, row: f32) -> Pixels {
7806 self.hitbox.top() + row * self.text_unit_size
7807 }
7808
7809 fn marker_quads_for_ranges(
7810 &self,
7811 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7812 column: Option<usize>,
7813 ) -> Vec<PaintQuad> {
7814 struct MinMax {
7815 min: Pixels,
7816 max: Pixels,
7817 }
7818 let (x_range, height_limit) = if let Some(column) = column {
7819 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7820 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7821 let end = start + column_width;
7822 (
7823 Range { start, end },
7824 MinMax {
7825 min: Self::MIN_MARKER_HEIGHT,
7826 max: px(f32::MAX),
7827 },
7828 )
7829 } else {
7830 (
7831 Range {
7832 start: Self::BORDER_WIDTH,
7833 end: self.hitbox.size.width,
7834 },
7835 MinMax {
7836 min: Self::LINE_MARKER_HEIGHT,
7837 max: Self::LINE_MARKER_HEIGHT,
7838 },
7839 )
7840 };
7841
7842 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7843 let mut pixel_ranges = row_ranges
7844 .into_iter()
7845 .map(|range| {
7846 let start_y = row_to_y(range.start);
7847 let end_y = row_to_y(range.end)
7848 + self
7849 .text_unit_size
7850 .max(height_limit.min)
7851 .min(height_limit.max);
7852 ColoredRange {
7853 start: start_y,
7854 end: end_y,
7855 color: range.color,
7856 }
7857 })
7858 .peekable();
7859
7860 let mut quads = Vec::new();
7861 while let Some(mut pixel_range) = pixel_ranges.next() {
7862 while let Some(next_pixel_range) = pixel_ranges.peek() {
7863 if pixel_range.end >= next_pixel_range.start - px(1.0)
7864 && pixel_range.color == next_pixel_range.color
7865 {
7866 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7867 pixel_ranges.next();
7868 } else {
7869 break;
7870 }
7871 }
7872
7873 let bounds = Bounds::from_corners(
7874 point(x_range.start, pixel_range.start),
7875 point(x_range.end, pixel_range.end),
7876 );
7877 quads.push(quad(
7878 bounds,
7879 Corners::default(),
7880 pixel_range.color,
7881 Edges::default(),
7882 Hsla::transparent_black(),
7883 ));
7884 }
7885
7886 quads
7887 }
7888}
7889
7890struct CreaseTrailerLayout {
7891 element: AnyElement,
7892 bounds: Bounds<Pixels>,
7893}
7894
7895pub(crate) struct PositionMap {
7896 pub size: Size<Pixels>,
7897 pub line_height: Pixels,
7898 pub scroll_pixel_position: gpui::Point<Pixels>,
7899 pub scroll_max: gpui::Point<f32>,
7900 pub em_width: Pixels,
7901 pub em_advance: Pixels,
7902 pub visible_row_range: Range<DisplayRow>,
7903 pub line_layouts: Vec<LineWithInvisibles>,
7904 pub snapshot: EditorSnapshot,
7905 pub text_hitbox: Hitbox,
7906 pub gutter_hitbox: Hitbox,
7907}
7908
7909#[derive(Debug, Copy, Clone)]
7910pub struct PointForPosition {
7911 pub previous_valid: DisplayPoint,
7912 pub next_valid: DisplayPoint,
7913 pub exact_unclipped: DisplayPoint,
7914 pub column_overshoot_after_line_end: u32,
7915}
7916
7917impl PointForPosition {
7918 pub fn as_valid(&self) -> Option<DisplayPoint> {
7919 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7920 Some(self.previous_valid)
7921 } else {
7922 None
7923 }
7924 }
7925}
7926
7927impl PositionMap {
7928 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7929 let text_bounds = self.text_hitbox.bounds;
7930 let scroll_position = self.snapshot.scroll_position();
7931 let position = position - text_bounds.origin;
7932 let y = position.y.max(px(0.)).min(self.size.height);
7933 let x = position.x + (scroll_position.x * self.em_width);
7934 let row = ((y / self.line_height) + scroll_position.y) as u32;
7935
7936 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7937 .line_layouts
7938 .get(row as usize - scroll_position.y as usize)
7939 {
7940 if let Some(ix) = line.index_for_x(x) {
7941 (ix as u32, px(0.))
7942 } else {
7943 (line.len as u32, px(0.).max(x - line.width))
7944 }
7945 } else {
7946 (0, x)
7947 };
7948
7949 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7950 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7951 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7952
7953 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7954 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7955 PointForPosition {
7956 previous_valid,
7957 next_valid,
7958 exact_unclipped,
7959 column_overshoot_after_line_end,
7960 }
7961 }
7962}
7963
7964struct BlockLayout {
7965 id: BlockId,
7966 row: Option<DisplayRow>,
7967 element: AnyElement,
7968 available_space: Size<AvailableSpace>,
7969 style: BlockStyle,
7970}
7971
7972pub fn layout_line(
7973 row: DisplayRow,
7974 snapshot: &EditorSnapshot,
7975 style: &EditorStyle,
7976 text_width: Pixels,
7977 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7978 window: &mut Window,
7979 cx: &mut App,
7980) -> LineWithInvisibles {
7981 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7982 LineWithInvisibles::from_chunks(
7983 chunks,
7984 &style,
7985 MAX_LINE_LEN,
7986 1,
7987 snapshot.mode,
7988 text_width,
7989 is_row_soft_wrapped,
7990 window,
7991 cx,
7992 )
7993 .pop()
7994 .unwrap()
7995}
7996
7997#[derive(Debug)]
7998pub struct IndentGuideLayout {
7999 origin: gpui::Point<Pixels>,
8000 length: Pixels,
8001 single_indent_width: Pixels,
8002 depth: u32,
8003 active: bool,
8004 settings: IndentGuideSettings,
8005}
8006
8007pub struct CursorLayout {
8008 origin: gpui::Point<Pixels>,
8009 block_width: Pixels,
8010 line_height: Pixels,
8011 color: Hsla,
8012 shape: CursorShape,
8013 block_text: Option<ShapedLine>,
8014 cursor_name: Option<AnyElement>,
8015}
8016
8017#[derive(Debug)]
8018pub struct CursorName {
8019 string: SharedString,
8020 color: Hsla,
8021 is_top_row: bool,
8022}
8023
8024impl CursorLayout {
8025 pub fn new(
8026 origin: gpui::Point<Pixels>,
8027 block_width: Pixels,
8028 line_height: Pixels,
8029 color: Hsla,
8030 shape: CursorShape,
8031 block_text: Option<ShapedLine>,
8032 ) -> CursorLayout {
8033 CursorLayout {
8034 origin,
8035 block_width,
8036 line_height,
8037 color,
8038 shape,
8039 block_text,
8040 cursor_name: None,
8041 }
8042 }
8043
8044 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8045 Bounds {
8046 origin: self.origin + origin,
8047 size: size(self.block_width, self.line_height),
8048 }
8049 }
8050
8051 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8052 match self.shape {
8053 CursorShape::Bar => Bounds {
8054 origin: self.origin + origin,
8055 size: size(px(2.0), self.line_height),
8056 },
8057 CursorShape::Block | CursorShape::Hollow => Bounds {
8058 origin: self.origin + origin,
8059 size: size(self.block_width, self.line_height),
8060 },
8061 CursorShape::Underline => Bounds {
8062 origin: self.origin
8063 + origin
8064 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8065 size: size(self.block_width, px(2.0)),
8066 },
8067 }
8068 }
8069
8070 pub fn layout(
8071 &mut self,
8072 origin: gpui::Point<Pixels>,
8073 cursor_name: Option<CursorName>,
8074 window: &mut Window,
8075 cx: &mut App,
8076 ) {
8077 if let Some(cursor_name) = cursor_name {
8078 let bounds = self.bounds(origin);
8079 let text_size = self.line_height / 1.5;
8080
8081 let name_origin = if cursor_name.is_top_row {
8082 point(bounds.right() - px(1.), bounds.top())
8083 } else {
8084 match self.shape {
8085 CursorShape::Bar => point(
8086 bounds.right() - px(2.),
8087 bounds.top() - text_size / 2. - px(1.),
8088 ),
8089 _ => point(
8090 bounds.right() - px(1.),
8091 bounds.top() - text_size / 2. - px(1.),
8092 ),
8093 }
8094 };
8095 let mut name_element = div()
8096 .bg(self.color)
8097 .text_size(text_size)
8098 .px_0p5()
8099 .line_height(text_size + px(2.))
8100 .text_color(cursor_name.color)
8101 .child(cursor_name.string.clone())
8102 .into_any_element();
8103
8104 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8105
8106 self.cursor_name = Some(name_element);
8107 }
8108 }
8109
8110 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8111 let bounds = self.bounds(origin);
8112
8113 //Draw background or border quad
8114 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8115 outline(bounds, self.color)
8116 } else {
8117 fill(bounds, self.color)
8118 };
8119
8120 if let Some(name) = &mut self.cursor_name {
8121 name.paint(window, cx);
8122 }
8123
8124 window.paint_quad(cursor);
8125
8126 if let Some(block_text) = &self.block_text {
8127 block_text
8128 .paint(self.origin + origin, self.line_height, window, cx)
8129 .log_err();
8130 }
8131 }
8132
8133 pub fn shape(&self) -> CursorShape {
8134 self.shape
8135 }
8136}
8137
8138#[derive(Debug)]
8139pub struct HighlightedRange {
8140 pub start_y: Pixels,
8141 pub line_height: Pixels,
8142 pub lines: Vec<HighlightedRangeLine>,
8143 pub color: Hsla,
8144 pub corner_radius: Pixels,
8145}
8146
8147#[derive(Debug)]
8148pub struct HighlightedRangeLine {
8149 pub start_x: Pixels,
8150 pub end_x: Pixels,
8151}
8152
8153impl HighlightedRange {
8154 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8155 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8156 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8157 self.paint_lines(
8158 self.start_y + self.line_height,
8159 &self.lines[1..],
8160 bounds,
8161 window,
8162 );
8163 } else {
8164 self.paint_lines(self.start_y, &self.lines, bounds, window);
8165 }
8166 }
8167
8168 fn paint_lines(
8169 &self,
8170 start_y: Pixels,
8171 lines: &[HighlightedRangeLine],
8172 _bounds: Bounds<Pixels>,
8173 window: &mut Window,
8174 ) {
8175 if lines.is_empty() {
8176 return;
8177 }
8178
8179 let first_line = lines.first().unwrap();
8180 let last_line = lines.last().unwrap();
8181
8182 let first_top_left = point(first_line.start_x, start_y);
8183 let first_top_right = point(first_line.end_x, start_y);
8184
8185 let curve_height = point(Pixels::ZERO, self.corner_radius);
8186 let curve_width = |start_x: Pixels, end_x: Pixels| {
8187 let max = (end_x - start_x) / 2.;
8188 let width = if max < self.corner_radius {
8189 max
8190 } else {
8191 self.corner_radius
8192 };
8193
8194 point(width, Pixels::ZERO)
8195 };
8196
8197 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8198 let mut builder = gpui::PathBuilder::fill();
8199 builder.move_to(first_top_right - top_curve_width);
8200 builder.curve_to(first_top_right + curve_height, first_top_right);
8201
8202 let mut iter = lines.iter().enumerate().peekable();
8203 while let Some((ix, line)) = iter.next() {
8204 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8205
8206 if let Some((_, next_line)) = iter.peek() {
8207 let next_top_right = point(next_line.end_x, bottom_right.y);
8208
8209 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8210 Ordering::Equal => {
8211 builder.line_to(bottom_right);
8212 }
8213 Ordering::Less => {
8214 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8215 builder.line_to(bottom_right - curve_height);
8216 if self.corner_radius > Pixels::ZERO {
8217 builder.curve_to(bottom_right - curve_width, bottom_right);
8218 }
8219 builder.line_to(next_top_right + curve_width);
8220 if self.corner_radius > Pixels::ZERO {
8221 builder.curve_to(next_top_right + curve_height, next_top_right);
8222 }
8223 }
8224 Ordering::Greater => {
8225 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8226 builder.line_to(bottom_right - curve_height);
8227 if self.corner_radius > Pixels::ZERO {
8228 builder.curve_to(bottom_right + curve_width, bottom_right);
8229 }
8230 builder.line_to(next_top_right - curve_width);
8231 if self.corner_radius > Pixels::ZERO {
8232 builder.curve_to(next_top_right + curve_height, next_top_right);
8233 }
8234 }
8235 }
8236 } else {
8237 let curve_width = curve_width(line.start_x, line.end_x);
8238 builder.line_to(bottom_right - curve_height);
8239 if self.corner_radius > Pixels::ZERO {
8240 builder.curve_to(bottom_right - curve_width, bottom_right);
8241 }
8242
8243 let bottom_left = point(line.start_x, bottom_right.y);
8244 builder.line_to(bottom_left + curve_width);
8245 if self.corner_radius > Pixels::ZERO {
8246 builder.curve_to(bottom_left - curve_height, bottom_left);
8247 }
8248 }
8249 }
8250
8251 if first_line.start_x > last_line.start_x {
8252 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8253 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8254 builder.line_to(second_top_left + curve_height);
8255 if self.corner_radius > Pixels::ZERO {
8256 builder.curve_to(second_top_left + curve_width, second_top_left);
8257 }
8258 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8259 builder.line_to(first_bottom_left - curve_width);
8260 if self.corner_radius > Pixels::ZERO {
8261 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8262 }
8263 }
8264
8265 builder.line_to(first_top_left + curve_height);
8266 if self.corner_radius > Pixels::ZERO {
8267 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8268 }
8269 builder.line_to(first_top_right - top_curve_width);
8270
8271 if let Ok(path) = builder.build() {
8272 window.paint_path(path, self.color);
8273 }
8274 }
8275}
8276
8277enum CursorPopoverType {
8278 CodeContextMenu,
8279 EditPrediction,
8280}
8281
8282pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8283 (delta.pow(1.5) / 100.0).into()
8284}
8285
8286fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8287 (delta.pow(1.2) / 300.0).into()
8288}
8289
8290pub fn register_action<T: Action>(
8291 editor: &Entity<Editor>,
8292 window: &mut Window,
8293 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8294) {
8295 let editor = editor.clone();
8296 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8297 let action = action.downcast_ref().unwrap();
8298 if phase == DispatchPhase::Bubble {
8299 editor.update(cx, |editor, cx| {
8300 listener(editor, action, window, cx);
8301 })
8302 }
8303 })
8304}
8305
8306fn compute_auto_height_layout(
8307 editor: &mut Editor,
8308 max_lines: usize,
8309 max_line_number_width: Pixels,
8310 known_dimensions: Size<Option<Pixels>>,
8311 available_width: AvailableSpace,
8312 window: &mut Window,
8313 cx: &mut Context<Editor>,
8314) -> Option<Size<Pixels>> {
8315 let width = known_dimensions.width.or({
8316 if let AvailableSpace::Definite(available_width) = available_width {
8317 Some(available_width)
8318 } else {
8319 None
8320 }
8321 })?;
8322 if let Some(height) = known_dimensions.height {
8323 return Some(size(width, height));
8324 }
8325
8326 let style = editor.style.as_ref().unwrap();
8327 let font_id = window.text_system().resolve_font(&style.text.font());
8328 let font_size = style.text.font_size.to_pixels(window.rem_size());
8329 let line_height = style.text.line_height_in_pixels(window.rem_size());
8330 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8331
8332 let mut snapshot = editor.snapshot(window, cx);
8333 let gutter_dimensions = snapshot
8334 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8335 .unwrap_or_default();
8336
8337 editor.gutter_dimensions = gutter_dimensions;
8338 let text_width = width - gutter_dimensions.width;
8339 let overscroll = size(em_width, px(0.));
8340
8341 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8342 if editor.set_wrap_width(Some(editor_width), cx) {
8343 snapshot = editor.snapshot(window, cx);
8344 }
8345
8346 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8347 let height = scroll_height
8348 .max(line_height)
8349 .min(line_height * max_lines as f32);
8350
8351 Some(size(width, height))
8352}
8353
8354#[cfg(test)]
8355mod tests {
8356 use super::*;
8357 use crate::{
8358 display_map::{BlockPlacement, BlockProperties},
8359 editor_tests::{init_test, update_test_language_settings},
8360 Editor, MultiBuffer,
8361 };
8362 use gpui::{TestAppContext, VisualTestContext};
8363 use language::language_settings;
8364 use log::info;
8365 use std::num::NonZeroU32;
8366 use util::test::sample_text;
8367
8368 #[gpui::test]
8369 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8370 init_test(cx, |_| {});
8371 let window = cx.add_window(|window, cx| {
8372 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8373 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8374 });
8375
8376 let editor = window.root(cx).unwrap();
8377 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8378 let line_height = window
8379 .update(cx, |_, window, _| {
8380 style.text.line_height_in_pixels(window.rem_size())
8381 })
8382 .unwrap();
8383 let element = EditorElement::new(&editor, style);
8384 let snapshot = window
8385 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8386 .unwrap();
8387
8388 let layouts = cx
8389 .update_window(*window, |_, window, cx| {
8390 element.layout_line_numbers(
8391 None,
8392 GutterDimensions {
8393 left_padding: Pixels::ZERO,
8394 right_padding: Pixels::ZERO,
8395 width: px(30.0),
8396 margin: Pixels::ZERO,
8397 git_blame_entries_width: None,
8398 },
8399 line_height,
8400 gpui::Point::default(),
8401 DisplayRow(0)..DisplayRow(6),
8402 &(0..6)
8403 .map(|row| RowInfo {
8404 buffer_row: Some(row),
8405 ..Default::default()
8406 })
8407 .collect::<Vec<_>>(),
8408 Some(DisplayPoint::new(DisplayRow(0), 0)),
8409 &snapshot,
8410 window,
8411 cx,
8412 )
8413 })
8414 .unwrap();
8415 assert_eq!(layouts.len(), 6);
8416
8417 let relative_rows = window
8418 .update(cx, |editor, window, cx| {
8419 let snapshot = editor.snapshot(window, cx);
8420 element.calculate_relative_line_numbers(
8421 &snapshot,
8422 &(DisplayRow(0)..DisplayRow(6)),
8423 Some(DisplayRow(3)),
8424 )
8425 })
8426 .unwrap();
8427 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8428 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8429 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8430 // current line has no relative number
8431 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8432 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8433
8434 // works if cursor is before screen
8435 let relative_rows = window
8436 .update(cx, |editor, window, cx| {
8437 let snapshot = editor.snapshot(window, cx);
8438 element.calculate_relative_line_numbers(
8439 &snapshot,
8440 &(DisplayRow(3)..DisplayRow(6)),
8441 Some(DisplayRow(1)),
8442 )
8443 })
8444 .unwrap();
8445 assert_eq!(relative_rows.len(), 3);
8446 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8447 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8448 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8449
8450 // works if cursor is after screen
8451 let relative_rows = window
8452 .update(cx, |editor, window, cx| {
8453 let snapshot = editor.snapshot(window, cx);
8454 element.calculate_relative_line_numbers(
8455 &snapshot,
8456 &(DisplayRow(0)..DisplayRow(3)),
8457 Some(DisplayRow(6)),
8458 )
8459 })
8460 .unwrap();
8461 assert_eq!(relative_rows.len(), 3);
8462 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8463 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8464 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8465 }
8466
8467 #[gpui::test]
8468 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8469 init_test(cx, |_| {});
8470
8471 let window = cx.add_window(|window, cx| {
8472 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8473 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8474 });
8475 let cx = &mut VisualTestContext::from_window(*window, cx);
8476 let editor = window.root(cx).unwrap();
8477 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8478
8479 window
8480 .update(cx, |editor, window, cx| {
8481 editor.cursor_shape = CursorShape::Block;
8482 editor.change_selections(None, window, cx, |s| {
8483 s.select_ranges([
8484 Point::new(0, 0)..Point::new(1, 0),
8485 Point::new(3, 2)..Point::new(3, 3),
8486 Point::new(5, 6)..Point::new(6, 0),
8487 ]);
8488 });
8489 })
8490 .unwrap();
8491
8492 let (_, state) = cx.draw(
8493 point(px(500.), px(500.)),
8494 size(px(500.), px(500.)),
8495 |_, _| EditorElement::new(&editor, style),
8496 );
8497
8498 assert_eq!(state.selections.len(), 1);
8499 let local_selections = &state.selections[0].1;
8500 assert_eq!(local_selections.len(), 3);
8501 // moves cursor back one line
8502 assert_eq!(
8503 local_selections[0].head,
8504 DisplayPoint::new(DisplayRow(0), 6)
8505 );
8506 assert_eq!(
8507 local_selections[0].range,
8508 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8509 );
8510
8511 // moves cursor back one column
8512 assert_eq!(
8513 local_selections[1].range,
8514 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8515 );
8516 assert_eq!(
8517 local_selections[1].head,
8518 DisplayPoint::new(DisplayRow(3), 2)
8519 );
8520
8521 // leaves cursor on the max point
8522 assert_eq!(
8523 local_selections[2].range,
8524 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8525 );
8526 assert_eq!(
8527 local_selections[2].head,
8528 DisplayPoint::new(DisplayRow(6), 0)
8529 );
8530
8531 // active lines does not include 1 (even though the range of the selection does)
8532 assert_eq!(
8533 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8534 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8535 );
8536
8537 // multi-buffer support
8538 // in DisplayPoint coordinates, this is what we're dealing with:
8539 // 0: [[file
8540 // 1: header
8541 // 2: section]]
8542 // 3: aaaaaa
8543 // 4: bbbbbb
8544 // 5: cccccc
8545 // 6:
8546 // 7: [[footer]]
8547 // 8: [[header]]
8548 // 9: ffffff
8549 // 10: gggggg
8550 // 11: hhhhhh
8551 // 12:
8552 // 13: [[footer]]
8553 // 14: [[file
8554 // 15: header
8555 // 16: section]]
8556 // 17: bbbbbb
8557 // 18: cccccc
8558 // 19: dddddd
8559 // 20: [[footer]]
8560 let window = cx.add_window(|window, cx| {
8561 let buffer = MultiBuffer::build_multi(
8562 [
8563 (
8564 &(sample_text(8, 6, 'a') + "\n"),
8565 vec![
8566 Point::new(0, 0)..Point::new(3, 0),
8567 Point::new(4, 0)..Point::new(7, 0),
8568 ],
8569 ),
8570 (
8571 &(sample_text(8, 6, 'a') + "\n"),
8572 vec![Point::new(1, 0)..Point::new(3, 0)],
8573 ),
8574 ],
8575 cx,
8576 );
8577 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8578 });
8579 let editor = window.root(cx).unwrap();
8580 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8581 let _state = window.update(cx, |editor, window, cx| {
8582 editor.cursor_shape = CursorShape::Block;
8583 editor.change_selections(None, window, cx, |s| {
8584 s.select_display_ranges([
8585 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8586 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8587 ]);
8588 });
8589 });
8590
8591 let (_, state) = cx.draw(
8592 point(px(500.), px(500.)),
8593 size(px(500.), px(500.)),
8594 |_, _| EditorElement::new(&editor, style),
8595 );
8596 assert_eq!(state.selections.len(), 1);
8597 let local_selections = &state.selections[0].1;
8598 assert_eq!(local_selections.len(), 2);
8599
8600 // moves cursor on excerpt boundary back a line
8601 // and doesn't allow selection to bleed through
8602 assert_eq!(
8603 local_selections[0].range,
8604 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8605 );
8606 assert_eq!(
8607 local_selections[0].head,
8608 DisplayPoint::new(DisplayRow(6), 0)
8609 );
8610 // moves cursor on buffer boundary back two lines
8611 // and doesn't allow selection to bleed through
8612 assert_eq!(
8613 local_selections[1].range,
8614 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8615 );
8616 assert_eq!(
8617 local_selections[1].head,
8618 DisplayPoint::new(DisplayRow(12), 0)
8619 );
8620 }
8621
8622 #[gpui::test]
8623 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8624 init_test(cx, |_| {});
8625
8626 let window = cx.add_window(|window, cx| {
8627 let buffer = MultiBuffer::build_simple("", cx);
8628 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8629 });
8630 let cx = &mut VisualTestContext::from_window(*window, cx);
8631 let editor = window.root(cx).unwrap();
8632 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8633 window
8634 .update(cx, |editor, window, cx| {
8635 editor.set_placeholder_text("hello", cx);
8636 editor.insert_blocks(
8637 [BlockProperties {
8638 style: BlockStyle::Fixed,
8639 placement: BlockPlacement::Above(Anchor::min()),
8640 height: 3,
8641 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8642 priority: 0,
8643 }],
8644 None,
8645 cx,
8646 );
8647
8648 // Blur the editor so that it displays placeholder text.
8649 window.blur();
8650 })
8651 .unwrap();
8652
8653 let (_, state) = cx.draw(
8654 point(px(500.), px(500.)),
8655 size(px(500.), px(500.)),
8656 |_, _| EditorElement::new(&editor, style),
8657 );
8658 assert_eq!(state.position_map.line_layouts.len(), 4);
8659 assert_eq!(state.line_numbers.len(), 1);
8660 assert_eq!(
8661 state
8662 .line_numbers
8663 .get(&MultiBufferRow(0))
8664 .map(|line_number| line_number.shaped_line.text.as_ref()),
8665 Some("1")
8666 );
8667 }
8668
8669 #[gpui::test]
8670 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8671 const TAB_SIZE: u32 = 4;
8672
8673 let input_text = "\t \t|\t| a b";
8674 let expected_invisibles = vec![
8675 Invisible::Tab {
8676 line_start_offset: 0,
8677 line_end_offset: TAB_SIZE as usize,
8678 },
8679 Invisible::Whitespace {
8680 line_offset: TAB_SIZE as usize,
8681 },
8682 Invisible::Tab {
8683 line_start_offset: TAB_SIZE as usize + 1,
8684 line_end_offset: TAB_SIZE as usize * 2,
8685 },
8686 Invisible::Tab {
8687 line_start_offset: TAB_SIZE as usize * 2 + 1,
8688 line_end_offset: TAB_SIZE as usize * 3,
8689 },
8690 Invisible::Whitespace {
8691 line_offset: TAB_SIZE as usize * 3 + 1,
8692 },
8693 Invisible::Whitespace {
8694 line_offset: TAB_SIZE as usize * 3 + 3,
8695 },
8696 ];
8697 assert_eq!(
8698 expected_invisibles.len(),
8699 input_text
8700 .chars()
8701 .filter(|initial_char| initial_char.is_whitespace())
8702 .count(),
8703 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8704 );
8705
8706 for show_line_numbers in [true, false] {
8707 init_test(cx, |s| {
8708 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8709 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8710 });
8711
8712 let actual_invisibles = collect_invisibles_from_new_editor(
8713 cx,
8714 EditorMode::Full,
8715 input_text,
8716 px(500.0),
8717 show_line_numbers,
8718 );
8719
8720 assert_eq!(expected_invisibles, actual_invisibles);
8721 }
8722 }
8723
8724 #[gpui::test]
8725 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8726 init_test(cx, |s| {
8727 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8728 s.defaults.tab_size = NonZeroU32::new(4);
8729 });
8730
8731 for editor_mode_without_invisibles in [
8732 EditorMode::SingleLine { auto_width: false },
8733 EditorMode::AutoHeight { max_lines: 100 },
8734 ] {
8735 for show_line_numbers in [true, false] {
8736 let invisibles = collect_invisibles_from_new_editor(
8737 cx,
8738 editor_mode_without_invisibles,
8739 "\t\t\t| | a b",
8740 px(500.0),
8741 show_line_numbers,
8742 );
8743 assert!(invisibles.is_empty(),
8744 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8745 }
8746 }
8747 }
8748
8749 #[gpui::test]
8750 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8751 let tab_size = 4;
8752 let input_text = "a\tbcd ".repeat(9);
8753 let repeated_invisibles = [
8754 Invisible::Tab {
8755 line_start_offset: 1,
8756 line_end_offset: tab_size as usize,
8757 },
8758 Invisible::Whitespace {
8759 line_offset: tab_size as usize + 3,
8760 },
8761 Invisible::Whitespace {
8762 line_offset: tab_size as usize + 4,
8763 },
8764 Invisible::Whitespace {
8765 line_offset: tab_size as usize + 5,
8766 },
8767 Invisible::Whitespace {
8768 line_offset: tab_size as usize + 6,
8769 },
8770 Invisible::Whitespace {
8771 line_offset: tab_size as usize + 7,
8772 },
8773 ];
8774 let expected_invisibles = std::iter::once(repeated_invisibles)
8775 .cycle()
8776 .take(9)
8777 .flatten()
8778 .collect::<Vec<_>>();
8779 assert_eq!(
8780 expected_invisibles.len(),
8781 input_text
8782 .chars()
8783 .filter(|initial_char| initial_char.is_whitespace())
8784 .count(),
8785 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8786 );
8787 info!("Expected invisibles: {expected_invisibles:?}");
8788
8789 init_test(cx, |_| {});
8790
8791 // Put the same string with repeating whitespace pattern into editors of various size,
8792 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8793 let resize_step = 10.0;
8794 let mut editor_width = 200.0;
8795 while editor_width <= 1000.0 {
8796 for show_line_numbers in [true, false] {
8797 update_test_language_settings(cx, |s| {
8798 s.defaults.tab_size = NonZeroU32::new(tab_size);
8799 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8800 s.defaults.preferred_line_length = Some(editor_width as u32);
8801 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8802 });
8803
8804 let actual_invisibles = collect_invisibles_from_new_editor(
8805 cx,
8806 EditorMode::Full,
8807 &input_text,
8808 px(editor_width),
8809 show_line_numbers,
8810 );
8811
8812 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8813 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8814 let mut i = 0;
8815 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8816 i = actual_index;
8817 match expected_invisibles.get(i) {
8818 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8819 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8820 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8821 _ => {
8822 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8823 }
8824 },
8825 None => {
8826 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8827 }
8828 }
8829 }
8830 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8831 assert!(
8832 missing_expected_invisibles.is_empty(),
8833 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8834 );
8835
8836 editor_width += resize_step;
8837 }
8838 }
8839 }
8840
8841 fn collect_invisibles_from_new_editor(
8842 cx: &mut TestAppContext,
8843 editor_mode: EditorMode,
8844 input_text: &str,
8845 editor_width: Pixels,
8846 show_line_numbers: bool,
8847 ) -> Vec<Invisible> {
8848 info!(
8849 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8850 editor_width.0
8851 );
8852 let window = cx.add_window(|window, cx| {
8853 let buffer = MultiBuffer::build_simple(input_text, cx);
8854 Editor::new(editor_mode, buffer, None, true, window, cx)
8855 });
8856 let cx = &mut VisualTestContext::from_window(*window, cx);
8857 let editor = window.root(cx).unwrap();
8858
8859 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8860 window
8861 .update(cx, |editor, _, cx| {
8862 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8863 editor.set_wrap_width(Some(editor_width), cx);
8864 editor.set_show_line_numbers(show_line_numbers, cx);
8865 })
8866 .unwrap();
8867 let (_, state) = cx.draw(
8868 point(px(500.), px(500.)),
8869 size(px(500.), px(500.)),
8870 |_, _| EditorElement::new(&editor, style),
8871 );
8872 state
8873 .position_map
8874 .line_layouts
8875 .iter()
8876 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8877 .cloned()
8878 .collect()
8879 }
8880}
8881
8882fn diff_hunk_controls(
8883 row: u32,
8884 status: &DiffHunkStatus,
8885 hunk_range: Range<Anchor>,
8886 is_created_file: bool,
8887 line_height: Pixels,
8888 editor: &Entity<Editor>,
8889 cx: &mut App,
8890) -> AnyElement {
8891 h_flex()
8892 .h(line_height)
8893 .mr_1()
8894 .gap_1()
8895 .px_1()
8896 .pb_1()
8897 .border_b_1()
8898 .border_color(cx.theme().colors().border_variant)
8899 .rounded_b_lg()
8900 .bg(cx.theme().colors().editor_background)
8901 .gap_1()
8902 .occlude()
8903 .child(if status.has_secondary_hunk() {
8904 Button::new(("stage", row as u64), "Stage")
8905 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8906 .tooltip({
8907 let focus_handle = editor.focus_handle(cx);
8908 move |window, cx| {
8909 Tooltip::for_action_in(
8910 "Stage Hunk",
8911 &::git::ToggleStaged,
8912 &focus_handle,
8913 window,
8914 cx,
8915 )
8916 }
8917 })
8918 .on_click({
8919 let editor = editor.clone();
8920 move |_event, _window, cx| {
8921 editor.update(cx, |editor, cx| {
8922 editor.stage_or_unstage_diff_hunks(
8923 true,
8924 vec![hunk_range.start..hunk_range.start],
8925 cx,
8926 );
8927 });
8928 }
8929 })
8930 } else {
8931 Button::new(("unstage", row as u64), "Unstage")
8932 .alpha(if status.is_pending() { 0.66 } else { 1.0 })
8933 .tooltip({
8934 let focus_handle = editor.focus_handle(cx);
8935 move |window, cx| {
8936 Tooltip::for_action_in(
8937 "Unstage Hunk",
8938 &::git::ToggleStaged,
8939 &focus_handle,
8940 window,
8941 cx,
8942 )
8943 }
8944 })
8945 .on_click({
8946 let editor = editor.clone();
8947 move |_event, _window, cx| {
8948 editor.update(cx, |editor, cx| {
8949 editor.stage_or_unstage_diff_hunks(
8950 false,
8951 vec![hunk_range.start..hunk_range.start],
8952 cx,
8953 );
8954 });
8955 }
8956 })
8957 })
8958 .child(
8959 Button::new("discard", "Restore")
8960 .tooltip({
8961 let focus_handle = editor.focus_handle(cx);
8962 move |window, cx| {
8963 Tooltip::for_action_in(
8964 "Restore Hunk",
8965 &::git::Restore,
8966 &focus_handle,
8967 window,
8968 cx,
8969 )
8970 }
8971 })
8972 .on_click({
8973 let editor = editor.clone();
8974 move |_event, window, cx| {
8975 editor.update(cx, |editor, cx| {
8976 let snapshot = editor.snapshot(window, cx);
8977 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8978 editor.restore_hunks_in_ranges(vec![point..point], window, cx);
8979 });
8980 }
8981 })
8982 .disabled(is_created_file),
8983 )
8984 .when(
8985 !editor.read(cx).buffer().read(cx).all_diff_hunks_expanded(),
8986 |el| {
8987 el.child(
8988 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8989 .shape(IconButtonShape::Square)
8990 .icon_size(IconSize::Small)
8991 // .disabled(!has_multiple_hunks)
8992 .tooltip({
8993 let focus_handle = editor.focus_handle(cx);
8994 move |window, cx| {
8995 Tooltip::for_action_in(
8996 "Next Hunk",
8997 &GoToHunk,
8998 &focus_handle,
8999 window,
9000 cx,
9001 )
9002 }
9003 })
9004 .on_click({
9005 let editor = editor.clone();
9006 move |_event, window, cx| {
9007 editor.update(cx, |editor, cx| {
9008 let snapshot = editor.snapshot(window, cx);
9009 let position =
9010 hunk_range.end.to_point(&snapshot.buffer_snapshot);
9011 editor.go_to_hunk_after_or_before_position(
9012 &snapshot,
9013 position,
9014 Direction::Next,
9015 window,
9016 cx,
9017 );
9018 editor.expand_selected_diff_hunks(cx);
9019 });
9020 }
9021 }),
9022 )
9023 .child(
9024 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
9025 .shape(IconButtonShape::Square)
9026 .icon_size(IconSize::Small)
9027 // .disabled(!has_multiple_hunks)
9028 .tooltip({
9029 let focus_handle = editor.focus_handle(cx);
9030 move |window, cx| {
9031 Tooltip::for_action_in(
9032 "Previous Hunk",
9033 &GoToPreviousHunk,
9034 &focus_handle,
9035 window,
9036 cx,
9037 )
9038 }
9039 })
9040 .on_click({
9041 let editor = editor.clone();
9042 move |_event, window, cx| {
9043 editor.update(cx, |editor, cx| {
9044 let snapshot = editor.snapshot(window, cx);
9045 let point =
9046 hunk_range.start.to_point(&snapshot.buffer_snapshot);
9047 editor.go_to_hunk_after_or_before_position(
9048 &snapshot,
9049 point,
9050 Direction::Prev,
9051 window,
9052 cx,
9053 );
9054 editor.expand_selected_diff_hunks(cx);
9055 });
9056 }
9057 }),
9058 )
9059 },
9060 )
9061 .into_any_element()
9062}