1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
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::{CommitDetails, GitBlame},
12 hover_popover::{
13 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
14 },
15 items::BufferSearchHighlights,
16 mouse_context_menu::{self, MenuPosition, MouseContextMenu},
17 scroll::{axis_pair, scroll_amount::ScrollAmount, AxisPair},
18 BlockId, ChunkReplacement, CursorShape, CustomBlockId, DisplayPoint, DisplayRow,
19 DocumentHighlightRead, DocumentHighlightWrite, EditDisplayMode, Editor, EditorMode,
20 EditorSettings, EditorSnapshot, EditorStyle, ExpandExcerpts, FocusedBlock, GoToHunk,
21 GoToPrevHunk, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput, HoveredCursor,
22 InlineCompletion, JumpData, LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point,
23 RevertSelectedHunks, RowExt, RowRangeExt, SelectPhase, Selection, SoftWrap,
24 StickyHeaderExcerpt, ToPoint, ToggleFold, CURSORS_VISIBLE_FOR, FILE_HEADER_HEIGHT,
25 GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED, MAX_LINE_LEN, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
26};
27use client::ParticipantIndex;
28use collections::{BTreeMap, HashMap, HashSet};
29use file_icons::FileIcons;
30use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
31use gpui::{
32 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
33 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
34 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
35 Edges, Element, ElementInputHandler, Entity, FocusHandle, Focusable as _, FontId,
36 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
37 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
38 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
39 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement,
40 WeakEntity, Window,
41};
42use itertools::Itertools;
43use language::{
44 language_settings::{
45 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
46 ShowWhitespaceSetting,
47 },
48 ChunkRendererContext,
49};
50use lsp::DiagnosticSeverity;
51use multi_buffer::{
52 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
53 RowInfo, ToOffset,
54};
55use project::project_settings::{GitGutterSetting, ProjectSettings};
56use settings::Settings;
57use smallvec::{smallvec, SmallVec};
58use std::{
59 any::TypeId,
60 borrow::Cow,
61 cmp::{self, Ordering},
62 fmt::{self, Write},
63 iter, mem,
64 ops::{Deref, Range},
65 rc::Rc,
66 sync::Arc,
67};
68use sum_tree::Bias;
69use text::BufferId;
70use theme::{ActiveTheme, Appearance, PlayerColor};
71use ui::{
72 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
73 POPOVER_Y_PADDING,
74};
75use unicode_segmentation::UnicodeSegmentation;
76use util::{RangeExt, ResultExt};
77use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
78
79const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
80
81#[derive(Debug, Clone, PartialEq, Eq)]
82enum DisplayDiffHunk {
83 Folded {
84 display_row: DisplayRow,
85 },
86
87 Unfolded {
88 diff_base_byte_range: Range<usize>,
89 display_row_range: Range<DisplayRow>,
90 multi_buffer_range: Range<Anchor>,
91 status: DiffHunkStatus,
92 },
93}
94
95struct SelectionLayout {
96 head: DisplayPoint,
97 cursor_shape: CursorShape,
98 is_newest: bool,
99 is_local: bool,
100 range: Range<DisplayPoint>,
101 active_rows: Range<DisplayRow>,
102 user_name: Option<SharedString>,
103}
104
105impl SelectionLayout {
106 fn new<T: ToPoint + ToDisplayPoint + Clone>(
107 selection: Selection<T>,
108 line_mode: bool,
109 cursor_shape: CursorShape,
110 map: &DisplaySnapshot,
111 is_newest: bool,
112 is_local: bool,
113 user_name: Option<SharedString>,
114 ) -> Self {
115 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
116 let display_selection = point_selection.map(|p| p.to_display_point(map));
117 let mut range = display_selection.range();
118 let mut head = display_selection.head();
119 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
120 ..map.next_line_boundary(point_selection.end).1.row();
121
122 // vim visual line mode
123 if line_mode {
124 let point_range = map.expand_to_line(point_selection.range());
125 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
126 }
127
128 // any vim visual mode (including line mode)
129 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
130 && !range.is_empty()
131 && !selection.reversed
132 {
133 if head.column() > 0 {
134 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
135 } else if head.row().0 > 0 && head != map.max_point() {
136 head = map.clip_point(
137 DisplayPoint::new(
138 head.row().previous_row(),
139 map.line_len(head.row().previous_row()),
140 ),
141 Bias::Left,
142 );
143 // updating range.end is a no-op unless you're cursor is
144 // on the newline containing a multi-buffer divider
145 // in which case the clip_point may have moved the head up
146 // an additional row.
147 range.end = DisplayPoint::new(head.row().next_row(), 0);
148 active_rows.end = head.row();
149 }
150 }
151
152 Self {
153 head,
154 cursor_shape,
155 is_newest,
156 is_local,
157 range,
158 active_rows,
159 user_name,
160 }
161 }
162}
163
164pub struct EditorElement {
165 editor: Entity<Editor>,
166 style: EditorStyle,
167}
168
169type DisplayRowDelta = u32;
170
171impl EditorElement {
172 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
173
174 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
175 Self {
176 editor: editor.clone(),
177 style,
178 }
179 }
180
181 fn register_actions(&self, window: &mut Window, cx: &mut App) {
182 let editor = &self.editor;
183 editor.update(cx, |editor, cx| {
184 for action in editor.editor_actions.borrow().values() {
185 (action)(window, cx)
186 }
187 });
188
189 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
190 crate::clangd_ext::apply_related_actions(editor, window, cx);
191 register_action(editor, window, Editor::open_context_menu);
192 register_action(editor, window, Editor::move_left);
193 register_action(editor, window, Editor::move_right);
194 register_action(editor, window, Editor::move_down);
195 register_action(editor, window, Editor::move_down_by_lines);
196 register_action(editor, window, Editor::select_down_by_lines);
197 register_action(editor, window, Editor::move_up);
198 register_action(editor, window, Editor::move_up_by_lines);
199 register_action(editor, window, Editor::select_up_by_lines);
200 register_action(editor, window, Editor::select_page_down);
201 register_action(editor, window, Editor::select_page_up);
202 register_action(editor, window, Editor::cancel);
203 register_action(editor, window, Editor::newline);
204 register_action(editor, window, Editor::newline_above);
205 register_action(editor, window, Editor::newline_below);
206 register_action(editor, window, Editor::backspace);
207 register_action(editor, window, Editor::delete);
208 register_action(editor, window, Editor::tab);
209 register_action(editor, window, Editor::tab_prev);
210 register_action(editor, window, Editor::indent);
211 register_action(editor, window, Editor::outdent);
212 register_action(editor, window, Editor::autoindent);
213 register_action(editor, window, Editor::delete_line);
214 register_action(editor, window, Editor::join_lines);
215 register_action(editor, window, Editor::sort_lines_case_sensitive);
216 register_action(editor, window, Editor::sort_lines_case_insensitive);
217 register_action(editor, window, Editor::reverse_lines);
218 register_action(editor, window, Editor::shuffle_lines);
219 register_action(editor, window, Editor::convert_to_upper_case);
220 register_action(editor, window, Editor::convert_to_lower_case);
221 register_action(editor, window, Editor::convert_to_title_case);
222 register_action(editor, window, Editor::convert_to_snake_case);
223 register_action(editor, window, Editor::convert_to_kebab_case);
224 register_action(editor, window, Editor::convert_to_upper_camel_case);
225 register_action(editor, window, Editor::convert_to_lower_camel_case);
226 register_action(editor, window, Editor::convert_to_opposite_case);
227 register_action(editor, window, Editor::delete_to_previous_word_start);
228 register_action(editor, window, Editor::delete_to_previous_subword_start);
229 register_action(editor, window, Editor::delete_to_next_word_end);
230 register_action(editor, window, Editor::delete_to_next_subword_end);
231 register_action(editor, window, Editor::delete_to_beginning_of_line);
232 register_action(editor, window, Editor::delete_to_end_of_line);
233 register_action(editor, window, Editor::cut_to_end_of_line);
234 register_action(editor, window, Editor::duplicate_line_up);
235 register_action(editor, window, Editor::duplicate_line_down);
236 register_action(editor, window, Editor::duplicate_selection);
237 register_action(editor, window, Editor::move_line_up);
238 register_action(editor, window, Editor::move_line_down);
239 register_action(editor, window, Editor::transpose);
240 register_action(editor, window, Editor::rewrap);
241 register_action(editor, window, Editor::cut);
242 register_action(editor, window, Editor::kill_ring_cut);
243 register_action(editor, window, Editor::kill_ring_yank);
244 register_action(editor, window, Editor::copy);
245 register_action(editor, window, Editor::paste);
246 register_action(editor, window, Editor::undo);
247 register_action(editor, window, Editor::redo);
248 register_action(editor, window, Editor::move_page_up);
249 register_action(editor, window, Editor::move_page_down);
250 register_action(editor, window, Editor::next_screen);
251 register_action(editor, window, Editor::scroll_cursor_top);
252 register_action(editor, window, Editor::scroll_cursor_center);
253 register_action(editor, window, Editor::scroll_cursor_bottom);
254 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
255 register_action(editor, window, |editor, _: &LineDown, window, cx| {
256 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
257 });
258 register_action(editor, window, |editor, _: &LineUp, window, cx| {
259 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
260 });
261 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
262 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
263 });
264 register_action(
265 editor,
266 window,
267 |editor, HandleInput(text): &HandleInput, window, cx| {
268 if text.is_empty() {
269 return;
270 }
271 editor.handle_input(text, window, cx);
272 },
273 );
274 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
275 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
276 });
277 register_action(editor, window, |editor, _: &PageDown, window, cx| {
278 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
279 });
280 register_action(editor, window, |editor, _: &PageUp, window, cx| {
281 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
282 });
283 register_action(editor, window, Editor::move_to_previous_word_start);
284 register_action(editor, window, Editor::move_to_previous_subword_start);
285 register_action(editor, window, Editor::move_to_next_word_end);
286 register_action(editor, window, Editor::move_to_next_subword_end);
287 register_action(editor, window, Editor::move_to_beginning_of_line);
288 register_action(editor, window, Editor::move_to_end_of_line);
289 register_action(editor, window, Editor::move_to_start_of_paragraph);
290 register_action(editor, window, Editor::move_to_end_of_paragraph);
291 register_action(editor, window, Editor::move_to_beginning);
292 register_action(editor, window, Editor::move_to_end);
293 register_action(editor, window, Editor::select_up);
294 register_action(editor, window, Editor::select_down);
295 register_action(editor, window, Editor::select_left);
296 register_action(editor, window, Editor::select_right);
297 register_action(editor, window, Editor::select_to_previous_word_start);
298 register_action(editor, window, Editor::select_to_previous_subword_start);
299 register_action(editor, window, Editor::select_to_next_word_end);
300 register_action(editor, window, Editor::select_to_next_subword_end);
301 register_action(editor, window, Editor::select_to_beginning_of_line);
302 register_action(editor, window, Editor::select_to_end_of_line);
303 register_action(editor, window, Editor::select_to_start_of_paragraph);
304 register_action(editor, window, Editor::select_to_end_of_paragraph);
305 register_action(editor, window, Editor::select_to_beginning);
306 register_action(editor, window, Editor::select_to_end);
307 register_action(editor, window, Editor::select_all);
308 register_action(editor, window, |editor, action, window, cx| {
309 editor.select_all_matches(action, window, cx).log_err();
310 });
311 register_action(editor, window, Editor::select_line);
312 register_action(editor, window, Editor::split_selection_into_lines);
313 register_action(editor, window, Editor::add_selection_above);
314 register_action(editor, window, Editor::add_selection_below);
315 register_action(editor, window, |editor, action, window, cx| {
316 editor.select_next(action, window, cx).log_err();
317 });
318 register_action(editor, window, |editor, action, window, cx| {
319 editor.select_previous(action, window, cx).log_err();
320 });
321 register_action(editor, window, Editor::toggle_comments);
322 register_action(editor, window, Editor::select_larger_syntax_node);
323 register_action(editor, window, Editor::select_smaller_syntax_node);
324 register_action(editor, window, Editor::select_enclosing_symbol);
325 register_action(editor, window, Editor::move_to_enclosing_bracket);
326 register_action(editor, window, Editor::undo_selection);
327 register_action(editor, window, Editor::redo_selection);
328 if !editor.read(cx).is_singleton(cx) {
329 register_action(editor, window, Editor::expand_excerpts);
330 register_action(editor, window, Editor::expand_excerpts_up);
331 register_action(editor, window, Editor::expand_excerpts_down);
332 }
333 register_action(editor, window, Editor::go_to_diagnostic);
334 register_action(editor, window, Editor::go_to_prev_diagnostic);
335 register_action(editor, window, Editor::go_to_next_hunk);
336 register_action(editor, window, Editor::go_to_prev_hunk);
337 register_action(editor, window, |editor, action, window, cx| {
338 editor
339 .go_to_definition(action, window, cx)
340 .detach_and_log_err(cx);
341 });
342 register_action(editor, window, |editor, action, window, cx| {
343 editor
344 .go_to_definition_split(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(action, window, cx)
350 .detach_and_log_err(cx);
351 });
352 register_action(editor, window, |editor, action, window, cx| {
353 editor
354 .go_to_declaration_split(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(action, window, cx)
360 .detach_and_log_err(cx);
361 });
362 register_action(editor, window, |editor, action, window, cx| {
363 editor
364 .go_to_implementation_split(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(action, window, cx)
370 .detach_and_log_err(cx);
371 });
372 register_action(editor, window, |editor, action, window, cx| {
373 editor
374 .go_to_type_definition_split(action, window, cx)
375 .detach_and_log_err(cx);
376 });
377 register_action(editor, window, Editor::open_url);
378 register_action(editor, window, Editor::open_selected_filename);
379 register_action(editor, window, Editor::fold);
380 register_action(editor, window, Editor::fold_at_level);
381 register_action(editor, window, Editor::fold_all);
382 register_action(editor, window, Editor::fold_function_bodies);
383 register_action(editor, window, Editor::fold_at);
384 register_action(editor, window, Editor::fold_recursive);
385 register_action(editor, window, Editor::toggle_fold);
386 register_action(editor, window, Editor::toggle_fold_recursive);
387 register_action(editor, window, Editor::unfold_lines);
388 register_action(editor, window, Editor::unfold_recursive);
389 register_action(editor, window, Editor::unfold_all);
390 register_action(editor, window, Editor::unfold_at);
391 register_action(editor, window, Editor::fold_selected_ranges);
392 register_action(editor, window, Editor::set_mark);
393 register_action(editor, window, Editor::swap_selection_ends);
394 register_action(editor, window, Editor::show_completions);
395 register_action(editor, window, Editor::toggle_code_actions);
396 register_action(editor, window, Editor::open_excerpts);
397 register_action(editor, window, Editor::open_excerpts_in_split);
398 register_action(editor, window, Editor::open_proposed_changes_editor);
399 register_action(editor, window, Editor::toggle_soft_wrap);
400 register_action(editor, window, Editor::toggle_tab_bar);
401 register_action(editor, window, Editor::toggle_line_numbers);
402 register_action(editor, window, Editor::toggle_relative_line_numbers);
403 register_action(editor, window, Editor::toggle_indent_guides);
404 register_action(editor, window, Editor::toggle_inlay_hints);
405 register_action(editor, window, Editor::toggle_inline_completions);
406 register_action(editor, window, hover_popover::hover);
407 register_action(editor, window, Editor::reveal_in_finder);
408 register_action(editor, window, Editor::copy_path);
409 register_action(editor, window, Editor::copy_relative_path);
410 register_action(editor, window, Editor::copy_highlight_json);
411 register_action(editor, window, Editor::copy_permalink_to_line);
412 register_action(editor, window, Editor::open_permalink_to_line);
413 register_action(editor, window, Editor::copy_file_location);
414 register_action(editor, window, Editor::toggle_git_blame);
415 register_action(editor, window, Editor::toggle_git_blame_inline);
416 register_action(editor, window, Editor::toggle_selected_diff_hunks);
417 register_action(editor, window, Editor::expand_all_diff_hunks);
418 register_action(editor, window, |editor, action, window, cx| {
419 if let Some(task) = editor.format(action, window, cx) {
420 task.detach_and_notify_err(window, cx);
421 } else {
422 cx.propagate();
423 }
424 });
425 register_action(editor, window, |editor, action, window, cx| {
426 if let Some(task) = editor.format_selections(action, window, cx) {
427 task.detach_and_notify_err(window, cx);
428 } else {
429 cx.propagate();
430 }
431 });
432 register_action(editor, window, Editor::restart_language_server);
433 register_action(editor, window, Editor::cancel_language_server_work);
434 register_action(editor, window, Editor::show_character_palette);
435 register_action(editor, window, |editor, action, window, cx| {
436 if let Some(task) = editor.confirm_completion(action, window, cx) {
437 task.detach_and_notify_err(window, cx);
438 } else {
439 cx.propagate();
440 }
441 });
442 register_action(editor, window, |editor, action, window, cx| {
443 if let Some(task) = editor.compose_completion(action, window, cx) {
444 task.detach_and_notify_err(window, cx);
445 } else {
446 cx.propagate();
447 }
448 });
449 register_action(editor, window, |editor, action, window, cx| {
450 if let Some(task) = editor.confirm_code_action(action, window, cx) {
451 task.detach_and_notify_err(window, cx);
452 } else {
453 cx.propagate();
454 }
455 });
456 register_action(editor, window, |editor, action, window, cx| {
457 if let Some(task) = editor.rename(action, window, cx) {
458 task.detach_and_notify_err(window, cx);
459 } else {
460 cx.propagate();
461 }
462 });
463 register_action(editor, window, |editor, action, window, cx| {
464 if let Some(task) = editor.confirm_rename(action, window, cx) {
465 task.detach_and_notify_err(window, cx);
466 } else {
467 cx.propagate();
468 }
469 });
470 register_action(editor, window, |editor, action, window, cx| {
471 if let Some(task) = editor.find_all_references(action, window, cx) {
472 task.detach_and_log_err(cx);
473 } else {
474 cx.propagate();
475 }
476 });
477 register_action(editor, window, Editor::show_signature_help);
478 register_action(editor, window, Editor::next_inline_completion);
479 register_action(editor, window, Editor::previous_inline_completion);
480 register_action(editor, window, Editor::show_inline_completion);
481 register_action(editor, window, Editor::context_menu_first);
482 register_action(editor, window, Editor::context_menu_prev);
483 register_action(editor, window, Editor::context_menu_next);
484 register_action(editor, window, Editor::context_menu_last);
485 register_action(editor, window, Editor::display_cursor_names);
486 register_action(editor, window, Editor::unique_lines_case_insensitive);
487 register_action(editor, window, Editor::unique_lines_case_sensitive);
488 register_action(editor, window, Editor::accept_partial_inline_completion);
489 register_action(editor, window, Editor::accept_inline_completion);
490 register_action(editor, window, Editor::revert_file);
491 register_action(editor, window, Editor::revert_selected_hunks);
492 register_action(editor, window, Editor::apply_all_diff_hunks);
493 register_action(editor, window, Editor::apply_selected_diff_hunks);
494 register_action(editor, window, Editor::open_active_item_in_terminal);
495 register_action(editor, window, Editor::reload_file);
496 register_action(editor, window, Editor::spawn_nearest_task);
497 register_action(editor, window, Editor::insert_uuid_v4);
498 register_action(editor, window, Editor::insert_uuid_v7);
499 register_action(editor, window, Editor::open_selections_in_multibuffer);
500 }
501
502 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
503 let position_map = layout.position_map.clone();
504 window.on_key_event({
505 let editor = self.editor.clone();
506 let text_hitbox = layout.text_hitbox.clone();
507 move |event: &ModifiersChangedEvent, phase, window, cx| {
508 if phase != DispatchPhase::Bubble {
509 return;
510 }
511 editor.update(cx, |editor, cx| {
512 if editor.hover_state.focused(window, cx) {
513 return;
514 }
515 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, window, cx)
516 })
517 }
518 });
519 }
520
521 fn modifiers_changed(
522 editor: &mut Editor,
523 event: &ModifiersChangedEvent,
524 position_map: &PositionMap,
525 text_hitbox: &Hitbox,
526 window: &mut Window,
527 cx: &mut Context<Editor>,
528 ) {
529 editor.update_inline_completion_preview(&event.modifiers, window, cx);
530
531 let mouse_position = window.mouse_position();
532 if !text_hitbox.is_hovered(window) {
533 return;
534 }
535
536 editor.update_hovered_link(
537 position_map.point_for_position(text_hitbox.bounds, mouse_position),
538 &position_map.snapshot,
539 event.modifiers,
540 window,
541 cx,
542 )
543 }
544
545 #[allow(clippy::too_many_arguments)]
546 fn mouse_left_down(
547 editor: &mut Editor,
548 event: &MouseDownEvent,
549 hovered_hunk: Option<Range<Anchor>>,
550 position_map: &PositionMap,
551 text_hitbox: &Hitbox,
552 gutter_hitbox: &Hitbox,
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 mut click_count = event.click_count;
562 let mut modifiers = event.modifiers;
563
564 if let Some(hovered_hunk) = hovered_hunk {
565 editor.toggle_diff_hunks_in_ranges(vec![hovered_hunk], cx);
566 cx.notify();
567 return;
568 } else if gutter_hitbox.is_hovered(window) {
569 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
570 } else if !text_hitbox.is_hovered(window) {
571 return;
572 }
573
574 let is_singleton = editor.buffer().read(cx).is_singleton();
575
576 if click_count == 2 && !is_singleton {
577 match EditorSettings::get_global(cx).double_click_in_multibuffer {
578 DoubleClickInMultibuffer::Select => {
579 // do nothing special on double click, all selection logic is below
580 }
581 DoubleClickInMultibuffer::Open => {
582 if modifiers.alt {
583 // if double click is made with alt, pretend it's a regular double click without opening and alt,
584 // and run the selection logic.
585 modifiers.alt = false;
586 } else {
587 let scroll_position_row =
588 position_map.scroll_pixel_position.y / position_map.line_height;
589 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
590 + position_map.scroll_pixel_position.y)
591 / position_map.line_height)
592 as u32;
593 let multi_buffer_row = position_map
594 .snapshot
595 .display_point_to_point(
596 DisplayPoint::new(DisplayRow(display_row), 0),
597 Bias::Right,
598 )
599 .row;
600 let line_offset_from_top = display_row - scroll_position_row as u32;
601 // if double click is made without alt, open the corresponding excerp
602 editor.open_excerpts_common(
603 Some(JumpData::MultiBufferRow {
604 row: MultiBufferRow(multi_buffer_row),
605 line_offset_from_top,
606 }),
607 false,
608 window,
609 cx,
610 );
611 return;
612 }
613 }
614 }
615 }
616
617 let point_for_position =
618 position_map.point_for_position(text_hitbox.bounds, event.position);
619 let position = point_for_position.previous_valid;
620 if modifiers.shift && modifiers.alt {
621 editor.select(
622 SelectPhase::BeginColumnar {
623 position,
624 reset: false,
625 goal_column: point_for_position.exact_unclipped.column(),
626 },
627 window,
628 cx,
629 );
630 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
631 {
632 editor.select(
633 SelectPhase::Extend {
634 position,
635 click_count,
636 },
637 window,
638 cx,
639 );
640 } else {
641 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
642 let multi_cursor_modifier = match multi_cursor_setting {
643 MultiCursorModifier::Alt => modifiers.alt,
644 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
645 };
646 editor.select(
647 SelectPhase::Begin {
648 position,
649 add: multi_cursor_modifier,
650 click_count,
651 },
652 window,
653 cx,
654 );
655 }
656 cx.stop_propagation();
657
658 if !is_singleton {
659 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
660 + position_map.scroll_pixel_position.y)
661 / position_map.line_height) as u32;
662 let multi_buffer_row = position_map
663 .snapshot
664 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
665 .row;
666 if line_numbers
667 .get(&MultiBufferRow(multi_buffer_row))
668 .and_then(|line_number| line_number.hitbox.as_ref())
669 .is_some_and(|hitbox| hitbox.contains(&event.position))
670 {
671 let scroll_position_row =
672 position_map.scroll_pixel_position.y / position_map.line_height;
673 let line_offset_from_top = display_row - scroll_position_row as u32;
674
675 editor.open_excerpts_common(
676 Some(JumpData::MultiBufferRow {
677 row: MultiBufferRow(multi_buffer_row),
678 line_offset_from_top,
679 }),
680 modifiers.alt,
681 window,
682 cx,
683 );
684 cx.stop_propagation();
685 }
686 }
687 }
688
689 fn mouse_right_down(
690 editor: &mut Editor,
691 event: &MouseDownEvent,
692 position_map: &PositionMap,
693 text_hitbox: &Hitbox,
694 window: &mut Window,
695 cx: &mut Context<Editor>,
696 ) {
697 if !text_hitbox.is_hovered(window) {
698 return;
699 }
700 let point_for_position =
701 position_map.point_for_position(text_hitbox.bounds, event.position);
702 mouse_context_menu::deploy_context_menu(
703 editor,
704 Some(event.position),
705 point_for_position.previous_valid,
706 window,
707 cx,
708 );
709 cx.stop_propagation();
710 }
711
712 fn mouse_middle_down(
713 editor: &mut Editor,
714 event: &MouseDownEvent,
715 position_map: &PositionMap,
716 text_hitbox: &Hitbox,
717 window: &mut Window,
718 cx: &mut Context<Editor>,
719 ) {
720 if !text_hitbox.is_hovered(window) || window.default_prevented() {
721 return;
722 }
723
724 let point_for_position =
725 position_map.point_for_position(text_hitbox.bounds, event.position);
726 let position = point_for_position.previous_valid;
727
728 editor.select(
729 SelectPhase::BeginColumnar {
730 position,
731 reset: true,
732 goal_column: point_for_position.exact_unclipped.column(),
733 },
734 window,
735 cx,
736 );
737 }
738
739 fn mouse_up(
740 editor: &mut Editor,
741 event: &MouseUpEvent,
742 #[cfg_attr(
743 not(any(target_os = "linux", target_os = "freebsd")),
744 allow(unused_variables)
745 )]
746 position_map: &PositionMap,
747 text_hitbox: &Hitbox,
748 window: &mut Window,
749 cx: &mut Context<Editor>,
750 ) {
751 let end_selection = editor.has_pending_selection();
752 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
753
754 if end_selection {
755 editor.select(SelectPhase::End, window, cx);
756 }
757
758 if end_selection && pending_nonempty_selections {
759 cx.stop_propagation();
760 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
761 && event.button == MouseButton::Middle
762 {
763 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
764 return;
765 }
766
767 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
768 if EditorSettings::get_global(cx).middle_click_paste {
769 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
770 let point_for_position =
771 position_map.point_for_position(text_hitbox.bounds, event.position);
772 let position = point_for_position.previous_valid;
773
774 editor.select(
775 SelectPhase::Begin {
776 position,
777 add: false,
778 click_count: 1,
779 },
780 window,
781 cx,
782 );
783 editor.insert(&text, window, cx);
784 }
785 cx.stop_propagation()
786 }
787 }
788 }
789
790 fn click(
791 editor: &mut Editor,
792 event: &ClickEvent,
793 position_map: &PositionMap,
794 text_hitbox: &Hitbox,
795 window: &mut Window,
796 cx: &mut Context<Editor>,
797 ) {
798 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
799
800 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
801 let multi_cursor_modifier = match multi_cursor_setting {
802 MultiCursorModifier::Alt => event.modifiers().secondary(),
803 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
804 };
805
806 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
807 let point = position_map.point_for_position(text_hitbox.bounds, event.up.position);
808 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
809
810 cx.stop_propagation();
811 }
812 }
813
814 fn mouse_dragged(
815 editor: &mut Editor,
816 event: &MouseMoveEvent,
817 position_map: &PositionMap,
818 text_bounds: Bounds<Pixels>,
819 window: &mut Window,
820 cx: &mut Context<Editor>,
821 ) {
822 if !editor.has_pending_selection() {
823 return;
824 }
825
826 let point_for_position = position_map.point_for_position(text_bounds, event.position);
827 let mut scroll_delta = gpui::Point::<f32>::default();
828 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
829 let top = text_bounds.origin.y + vertical_margin;
830 let bottom = text_bounds.bottom_left().y - vertical_margin;
831 if event.position.y < top {
832 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
833 }
834 if event.position.y > bottom {
835 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
836 }
837
838 // We need horizontal width of text
839 let style = editor.style.clone().unwrap_or_default();
840 let font_id = window.text_system().resolve_font(&style.text.font());
841 let font_size = style.text.font_size.to_pixels(window.rem_size());
842 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
843
844 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
845
846 let scroll_space: Pixels = scroll_margin_x * em_width;
847
848 let left = text_bounds.origin.x + scroll_space;
849 let right = text_bounds.top_right().x - scroll_space;
850
851 if event.position.x < left {
852 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
853 }
854 if event.position.x > right {
855 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
856 }
857
858 editor.select(
859 SelectPhase::Update {
860 position: point_for_position.previous_valid,
861 goal_column: point_for_position.exact_unclipped.column(),
862 scroll_delta,
863 },
864 window,
865 cx,
866 );
867 }
868
869 fn mouse_moved(
870 editor: &mut Editor,
871 event: &MouseMoveEvent,
872 position_map: &PositionMap,
873 text_hitbox: &Hitbox,
874 gutter_hitbox: &Hitbox,
875 window: &mut Window,
876 cx: &mut Context<Editor>,
877 ) {
878 let modifiers = event.modifiers;
879 let gutter_hovered = gutter_hitbox.is_hovered(window);
880 editor.set_gutter_hovered(gutter_hovered, cx);
881
882 // Don't trigger hover popover if mouse is hovering over context menu
883 if text_hitbox.is_hovered(window) {
884 let point_for_position =
885 position_map.point_for_position(text_hitbox.bounds, event.position);
886
887 editor.update_hovered_link(
888 point_for_position,
889 &position_map.snapshot,
890 modifiers,
891 window,
892 cx,
893 );
894
895 if let Some(point) = point_for_position.as_valid() {
896 let anchor = position_map
897 .snapshot
898 .buffer_snapshot
899 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
900 hover_at(editor, Some(anchor), window, cx);
901 Self::update_visible_cursor(editor, point, position_map, window, cx);
902 } else {
903 hover_at(editor, None, window, cx);
904 }
905 } else {
906 editor.hide_hovered_link(cx);
907 hover_at(editor, None, window, cx);
908 if gutter_hovered {
909 cx.stop_propagation();
910 }
911 }
912 }
913
914 fn update_visible_cursor(
915 editor: &mut Editor,
916 point: DisplayPoint,
917 position_map: &PositionMap,
918 window: &mut Window,
919 cx: &mut Context<Editor>,
920 ) {
921 let snapshot = &position_map.snapshot;
922 let Some(hub) = editor.collaboration_hub() else {
923 return;
924 };
925 let start = snapshot.display_snapshot.clip_point(
926 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
927 Bias::Left,
928 );
929 let end = snapshot.display_snapshot.clip_point(
930 DisplayPoint::new(
931 point.row(),
932 (point.column() + 1).min(snapshot.line_len(point.row())),
933 ),
934 Bias::Right,
935 );
936
937 let range = snapshot
938 .buffer_snapshot
939 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
940 ..snapshot
941 .buffer_snapshot
942 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
943
944 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
945 return;
946 };
947 let key = crate::HoveredCursor {
948 replica_id: selection.replica_id,
949 selection_id: selection.selection.id,
950 };
951 editor.hovered_cursors.insert(
952 key.clone(),
953 cx.spawn_in(window, |editor, mut cx| async move {
954 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
955 editor
956 .update(&mut cx, |editor, cx| {
957 editor.hovered_cursors.remove(&key);
958 cx.notify();
959 })
960 .ok();
961 }),
962 );
963 cx.notify()
964 }
965
966 #[allow(clippy::too_many_arguments)]
967 fn layout_selections(
968 &self,
969 start_anchor: Anchor,
970 end_anchor: Anchor,
971 local_selections: &[Selection<Point>],
972 snapshot: &EditorSnapshot,
973 start_row: DisplayRow,
974 end_row: DisplayRow,
975 window: &mut Window,
976 cx: &mut App,
977 ) -> (
978 Vec<(PlayerColor, Vec<SelectionLayout>)>,
979 BTreeMap<DisplayRow, bool>,
980 Option<DisplayPoint>,
981 ) {
982 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
983 let mut active_rows = BTreeMap::new();
984 let mut newest_selection_head = None;
985 self.editor.update(cx, |editor, cx| {
986 if editor.show_local_selections {
987 let mut layouts = Vec::new();
988 let newest = editor.selections.newest(cx);
989 for selection in local_selections.iter().cloned() {
990 let is_empty = selection.start == selection.end;
991 let is_newest = selection == newest;
992
993 let layout = SelectionLayout::new(
994 selection,
995 editor.selections.line_mode,
996 editor.cursor_shape,
997 &snapshot.display_snapshot,
998 is_newest,
999 editor.leader_peer_id.is_none(),
1000 None,
1001 );
1002 if is_newest {
1003 newest_selection_head = Some(layout.head);
1004 }
1005
1006 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1007 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1008 {
1009 let contains_non_empty_selection =
1010 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
1011 *contains_non_empty_selection |= !is_empty;
1012 }
1013 layouts.push(layout);
1014 }
1015
1016 let player = editor.current_user_player_color(cx);
1017 selections.push((player, layouts));
1018 }
1019
1020 if let Some(collaboration_hub) = &editor.collaboration_hub {
1021 // When following someone, render the local selections in their color.
1022 if let Some(leader_id) = editor.leader_peer_id {
1023 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1024 {
1025 if let Some(participant_index) = collaboration_hub
1026 .user_participant_indices(cx)
1027 .get(&collaborator.user_id)
1028 {
1029 if let Some((local_selection_style, _)) = selections.first_mut() {
1030 *local_selection_style = cx
1031 .theme()
1032 .players()
1033 .color_for_participant(participant_index.0);
1034 }
1035 }
1036 }
1037 }
1038
1039 let mut remote_selections = HashMap::default();
1040 for selection in snapshot.remote_selections_in_range(
1041 &(start_anchor..end_anchor),
1042 collaboration_hub.as_ref(),
1043 cx,
1044 ) {
1045 let selection_style =
1046 Self::get_participant_color(selection.participant_index, cx);
1047
1048 // Don't re-render the leader's selections, since the local selections
1049 // match theirs.
1050 if Some(selection.peer_id) == editor.leader_peer_id {
1051 continue;
1052 }
1053 let key = HoveredCursor {
1054 replica_id: selection.replica_id,
1055 selection_id: selection.selection.id,
1056 };
1057
1058 let is_shown =
1059 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1060
1061 remote_selections
1062 .entry(selection.replica_id)
1063 .or_insert((selection_style, Vec::new()))
1064 .1
1065 .push(SelectionLayout::new(
1066 selection.selection,
1067 selection.line_mode,
1068 selection.cursor_shape,
1069 &snapshot.display_snapshot,
1070 false,
1071 false,
1072 if is_shown { selection.user_name } else { None },
1073 ));
1074 }
1075
1076 selections.extend(remote_selections.into_values());
1077 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1078 let layouts = snapshot
1079 .buffer_snapshot
1080 .selections_in_range(&(start_anchor..end_anchor), true)
1081 .map(move |(_, line_mode, cursor_shape, selection)| {
1082 SelectionLayout::new(
1083 selection,
1084 line_mode,
1085 cursor_shape,
1086 &snapshot.display_snapshot,
1087 false,
1088 false,
1089 None,
1090 )
1091 })
1092 .collect::<Vec<_>>();
1093 let player = editor.current_user_player_color(cx);
1094 selections.push((player, layouts));
1095 }
1096 });
1097 (selections, active_rows, newest_selection_head)
1098 }
1099
1100 fn collect_cursors(
1101 &self,
1102 snapshot: &EditorSnapshot,
1103 cx: &mut App,
1104 ) -> Vec<(DisplayPoint, Hsla)> {
1105 let editor = self.editor.read(cx);
1106 let mut cursors = Vec::new();
1107 let mut skip_local = false;
1108 let mut add_cursor = |anchor: Anchor, color| {
1109 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1110 };
1111 // Remote cursors
1112 if let Some(collaboration_hub) = &editor.collaboration_hub {
1113 for remote_selection in snapshot.remote_selections_in_range(
1114 &(Anchor::min()..Anchor::max()),
1115 collaboration_hub.deref(),
1116 cx,
1117 ) {
1118 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1119 add_cursor(remote_selection.selection.head(), color.cursor);
1120 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1121 skip_local = true;
1122 }
1123 }
1124 }
1125 // Local cursors
1126 if !skip_local {
1127 let color = cx.theme().players().local().cursor;
1128 editor.selections.disjoint.iter().for_each(|selection| {
1129 add_cursor(selection.head(), color);
1130 });
1131 if let Some(ref selection) = editor.selections.pending_anchor() {
1132 add_cursor(selection.head(), color);
1133 }
1134 }
1135 cursors
1136 }
1137
1138 #[allow(clippy::too_many_arguments)]
1139 fn layout_visible_cursors(
1140 &self,
1141 snapshot: &EditorSnapshot,
1142 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1143 block_start_rows: &HashSet<DisplayRow>,
1144 visible_display_row_range: Range<DisplayRow>,
1145 line_layouts: &[LineWithInvisibles],
1146 text_hitbox: &Hitbox,
1147 content_origin: gpui::Point<Pixels>,
1148 scroll_position: gpui::Point<f32>,
1149 scroll_pixel_position: gpui::Point<Pixels>,
1150 line_height: Pixels,
1151 em_width: Pixels,
1152 em_advance: Pixels,
1153 autoscroll_containing_element: bool,
1154 window: &mut Window,
1155 cx: &mut App,
1156 ) -> Vec<CursorLayout> {
1157 let mut autoscroll_bounds = None;
1158 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1159 let mut cursors = Vec::new();
1160 for (player_color, selections) in selections {
1161 for selection in selections {
1162 let cursor_position = selection.head;
1163
1164 let in_range = visible_display_row_range.contains(&cursor_position.row());
1165 if (selection.is_local && !editor.show_local_cursors(window, cx))
1166 || !in_range
1167 || block_start_rows.contains(&cursor_position.row())
1168 {
1169 continue;
1170 }
1171
1172 let cursor_row_layout = &line_layouts
1173 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1174 let cursor_column = cursor_position.column() as usize;
1175
1176 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1177 let mut block_width =
1178 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1179 if block_width == Pixels::ZERO {
1180 block_width = em_advance;
1181 }
1182 let block_text = if let CursorShape::Block = selection.cursor_shape {
1183 snapshot
1184 .grapheme_at(cursor_position)
1185 .or_else(|| {
1186 if cursor_column == 0 {
1187 snapshot.placeholder_text().and_then(|s| {
1188 s.graphemes(true).next().map(|s| s.to_string().into())
1189 })
1190 } else {
1191 None
1192 }
1193 })
1194 .and_then(|text| {
1195 let len = text.len();
1196
1197 let font = cursor_row_layout
1198 .font_id_for_index(cursor_column)
1199 .and_then(|cursor_font_id| {
1200 window.text_system().get_font_for_id(cursor_font_id)
1201 })
1202 .unwrap_or(self.style.text.font());
1203
1204 // Invert the text color for the block cursor. Ensure that the text
1205 // color is opaque enough to be visible against the background color.
1206 //
1207 // 0.75 is an arbitrary threshold to determine if the background color is
1208 // opaque enough to use as a text color.
1209 //
1210 // TODO: In the future we should ensure themes have a `text_inverse` color.
1211 let color = if cx.theme().colors().editor_background.a < 0.75 {
1212 match cx.theme().appearance {
1213 Appearance::Dark => Hsla::black(),
1214 Appearance::Light => Hsla::white(),
1215 }
1216 } else {
1217 cx.theme().colors().editor_background
1218 };
1219
1220 window
1221 .text_system()
1222 .shape_line(
1223 text,
1224 cursor_row_layout.font_size,
1225 &[TextRun {
1226 len,
1227 font,
1228 color,
1229 background_color: None,
1230 strikethrough: None,
1231 underline: None,
1232 }],
1233 )
1234 .log_err()
1235 })
1236 } else {
1237 None
1238 };
1239
1240 let x = cursor_character_x - scroll_pixel_position.x;
1241 let y = (cursor_position.row().as_f32()
1242 - scroll_pixel_position.y / line_height)
1243 * line_height;
1244 if selection.is_newest {
1245 editor.pixel_position_of_newest_cursor = Some(point(
1246 text_hitbox.origin.x + x + block_width / 2.,
1247 text_hitbox.origin.y + y + line_height / 2.,
1248 ));
1249
1250 if autoscroll_containing_element {
1251 let top = text_hitbox.origin.y
1252 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1253 * line_height;
1254 let left = text_hitbox.origin.x
1255 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1256 .max(0.)
1257 * em_width;
1258
1259 let bottom = text_hitbox.origin.y
1260 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1261 * line_height;
1262 let right = text_hitbox.origin.x
1263 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1264 * em_width;
1265
1266 autoscroll_bounds =
1267 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1268 }
1269 }
1270
1271 let mut cursor = CursorLayout {
1272 color: player_color.cursor,
1273 block_width,
1274 origin: point(x, y),
1275 line_height,
1276 shape: selection.cursor_shape,
1277 block_text,
1278 cursor_name: None,
1279 };
1280 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1281 string: name,
1282 color: self.style.background,
1283 is_top_row: cursor_position.row().0 == 0,
1284 });
1285 cursor.layout(content_origin, cursor_name, window, cx);
1286 cursors.push(cursor);
1287 }
1288 }
1289 cursors
1290 });
1291
1292 if let Some(bounds) = autoscroll_bounds {
1293 window.request_autoscroll(bounds);
1294 }
1295
1296 cursor_layouts
1297 }
1298
1299 fn layout_scrollbars(
1300 &self,
1301 snapshot: &EditorSnapshot,
1302 scrollbar_range_data: ScrollbarRangeData,
1303 scroll_position: gpui::Point<f32>,
1304 non_visible_cursors: bool,
1305 window: &mut Window,
1306 cx: &mut App,
1307 ) -> AxisPair<Option<ScrollbarLayout>> {
1308 let letter_size = scrollbar_range_data.letter_size;
1309 let text_units_per_page = axis_pair(
1310 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1311 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1312 );
1313
1314 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1315 let show_scrollbars = self.editor.read(cx).show_scrollbars
1316 && match scrollbar_settings.show {
1317 ShowScrollbar::Auto => {
1318 let editor = self.editor.read(cx);
1319 let is_singleton = editor.is_singleton(cx);
1320 // Git
1321 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1322 ||
1323 // Buffer Search Results
1324 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1325 ||
1326 // Selected Symbol Occurrences
1327 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1328 ||
1329 // Diagnostics
1330 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1331 ||
1332 // Cursors out of sight
1333 non_visible_cursors
1334 ||
1335 // Scrollmanager
1336 editor.scroll_manager.scrollbars_visible()
1337 }
1338 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1339 ShowScrollbar::Always => true,
1340 ShowScrollbar::Never => false,
1341 };
1342
1343 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1344
1345 if snapshot.mode != EditorMode::Full {
1346 return axis_pair(None, None);
1347 }
1348
1349 let visible_range = axis_pair(
1350 axes.horizontal
1351 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1352 axes.vertical
1353 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1354 );
1355
1356 // If a drag took place after we started dragging the scrollbar,
1357 // cancel the scrollbar drag.
1358 if cx.has_active_drag() {
1359 self.editor.update(cx, |editor, cx| {
1360 editor
1361 .scroll_manager
1362 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1363 editor
1364 .scroll_manager
1365 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1366 });
1367 }
1368
1369 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1370
1371 let track_bounds = axis_pair(
1372 axes.horizontal.then(|| {
1373 Bounds::from_corners(
1374 point(
1375 text_bounds.bottom_left().x,
1376 text_bounds.bottom_left().y - self.style.scrollbar_width,
1377 ),
1378 point(
1379 text_bounds.bottom_right().x
1380 - if axes.vertical {
1381 self.style.scrollbar_width
1382 } else {
1383 px(0.)
1384 },
1385 text_bounds.bottom_right().y,
1386 ),
1387 )
1388 }),
1389 axes.vertical.then(|| {
1390 Bounds::from_corners(
1391 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1392 text_bounds.bottom_right(),
1393 )
1394 }),
1395 );
1396
1397 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1398 let total_text_units = axis_pair(
1399 Some(scroll_range_size.width / letter_size.width),
1400 Some(scroll_range_size.height / letter_size.height),
1401 );
1402
1403 let thumb_size = axis_pair(
1404 total_text_units
1405 .horizontal
1406 .zip(track_bounds.horizontal)
1407 .and_then(|(total_text_units_x, track_bounds_x)| {
1408 if text_units_per_page.horizontal >= total_text_units_x {
1409 return None;
1410 }
1411
1412 let thumb_percent =
1413 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1414
1415 Some(track_bounds_x.size.width * thumb_percent)
1416 }),
1417 total_text_units.vertical.zip(track_bounds.vertical).map(
1418 |(total_text_units_y, track_bounds_y)| {
1419 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1420
1421 track_bounds_y.size.height * thumb_percent
1422 },
1423 ),
1424 );
1425
1426 // NOTE: Space not taken by track bounds divided by text units not on screen
1427 let text_unit_size = axis_pair(
1428 thumb_size
1429 .horizontal
1430 .zip(track_bounds.horizontal)
1431 .zip(total_text_units.horizontal)
1432 .map(|((thumb_size, track_bounds), total_text_units)| {
1433 (track_bounds.size.width - thumb_size)
1434 / (total_text_units - text_units_per_page.horizontal).max(0.)
1435 }),
1436 thumb_size
1437 .vertical
1438 .zip(track_bounds.vertical)
1439 .zip(total_text_units.vertical)
1440 .map(|((thumb_size, track_bounds), total_text_units)| {
1441 (track_bounds.size.height - thumb_size)
1442 / (total_text_units - text_units_per_page.vertical).max(0.)
1443 }),
1444 );
1445
1446 let horizontal_scrollbar = track_bounds
1447 .horizontal
1448 .zip(visible_range.horizontal)
1449 .zip(text_unit_size.horizontal)
1450 .zip(thumb_size.horizontal)
1451 .map(
1452 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1453 hitbox: window.insert_hitbox(track_bounds, false),
1454 visible_range,
1455 text_unit_size,
1456 visible: show_scrollbars,
1457 thumb_size,
1458 axis: Axis::Horizontal,
1459 },
1460 );
1461
1462 let vertical_scrollbar = track_bounds
1463 .vertical
1464 .zip(visible_range.vertical)
1465 .zip(text_unit_size.vertical)
1466 .zip(thumb_size.vertical)
1467 .map(
1468 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1469 hitbox: window.insert_hitbox(track_bounds, false),
1470 visible_range,
1471 text_unit_size,
1472 visible: show_scrollbars,
1473 thumb_size,
1474 axis: Axis::Vertical,
1475 },
1476 );
1477
1478 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1479 }
1480
1481 #[allow(clippy::too_many_arguments)]
1482 fn prepaint_crease_toggles(
1483 &self,
1484 crease_toggles: &mut [Option<AnyElement>],
1485 line_height: Pixels,
1486 gutter_dimensions: &GutterDimensions,
1487 gutter_settings: crate::editor_settings::Gutter,
1488 scroll_pixel_position: gpui::Point<Pixels>,
1489 gutter_hitbox: &Hitbox,
1490 window: &mut Window,
1491 cx: &mut App,
1492 ) {
1493 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1494 if let Some(crease_toggle) = crease_toggle {
1495 debug_assert!(gutter_settings.folds);
1496 let available_space = size(
1497 AvailableSpace::MinContent,
1498 AvailableSpace::Definite(line_height * 0.55),
1499 );
1500 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1501
1502 let position = point(
1503 gutter_dimensions.width - gutter_dimensions.right_padding,
1504 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1505 );
1506 let centering_offset = point(
1507 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1508 (line_height - crease_toggle_size.height) / 2.,
1509 );
1510 let origin = gutter_hitbox.origin + position + centering_offset;
1511 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1512 }
1513 }
1514 }
1515
1516 #[allow(clippy::too_many_arguments)]
1517 fn prepaint_crease_trailers(
1518 &self,
1519 trailers: Vec<Option<AnyElement>>,
1520 lines: &[LineWithInvisibles],
1521 line_height: Pixels,
1522 content_origin: gpui::Point<Pixels>,
1523 scroll_pixel_position: gpui::Point<Pixels>,
1524 em_width: Pixels,
1525 window: &mut Window,
1526 cx: &mut App,
1527 ) -> Vec<Option<CreaseTrailerLayout>> {
1528 trailers
1529 .into_iter()
1530 .enumerate()
1531 .map(|(ix, element)| {
1532 let mut element = element?;
1533 let available_space = size(
1534 AvailableSpace::MinContent,
1535 AvailableSpace::Definite(line_height),
1536 );
1537 let size = element.layout_as_root(available_space, window, cx);
1538
1539 let line = &lines[ix];
1540 let padding = if line.width == Pixels::ZERO {
1541 Pixels::ZERO
1542 } else {
1543 4. * em_width
1544 };
1545 let position = point(
1546 scroll_pixel_position.x + line.width + padding,
1547 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1548 );
1549 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1550 let origin = content_origin + position + centering_offset;
1551 element.prepaint_as_root(origin, available_space, window, cx);
1552 Some(CreaseTrailerLayout {
1553 element,
1554 bounds: Bounds::new(origin, size),
1555 })
1556 })
1557 .collect()
1558 }
1559
1560 // Folds contained in a hunk are ignored apart from shrinking visual size
1561 // If a fold contains any hunks then that fold line is marked as modified
1562 fn layout_gutter_diff_hunks(
1563 &self,
1564 line_height: Pixels,
1565 gutter_hitbox: &Hitbox,
1566 display_rows: Range<DisplayRow>,
1567 snapshot: &EditorSnapshot,
1568 window: &mut Window,
1569 cx: &mut App,
1570 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1571 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1572 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1573
1574 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1575 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1576
1577 for hunk in snapshot
1578 .buffer_snapshot
1579 .diff_hunks_in_range(buffer_start..buffer_end)
1580 {
1581 if folded_buffers.contains(&hunk.buffer_id) {
1582 continue;
1583 }
1584
1585 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1586 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1587
1588 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1589 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1590
1591 let display_hunk = if hunk_display_start.column() != 0 {
1592 DisplayDiffHunk::Folded {
1593 display_row: hunk_display_start.row(),
1594 }
1595 } else {
1596 let mut end_row = hunk_display_end.row();
1597 if hunk_display_end.column() > 0 {
1598 end_row.0 += 1;
1599 }
1600 DisplayDiffHunk::Unfolded {
1601 status: hunk.status(),
1602 diff_base_byte_range: hunk.diff_base_byte_range,
1603 display_row_range: hunk_display_start.row()..end_row,
1604 multi_buffer_range: Anchor::range_in_buffer(
1605 hunk.excerpt_id,
1606 hunk.buffer_id,
1607 hunk.buffer_range,
1608 ),
1609 }
1610 };
1611
1612 display_hunks.push((display_hunk, None));
1613 }
1614
1615 let git_gutter_setting = ProjectSettings::get_global(cx)
1616 .git
1617 .git_gutter
1618 .unwrap_or_default();
1619 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1620 for (hunk, hitbox) in &mut display_hunks {
1621 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1622 let hunk_bounds =
1623 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1624 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1625 }
1626 }
1627 }
1628
1629 display_hunks
1630 }
1631
1632 #[allow(clippy::too_many_arguments)]
1633 fn layout_inline_blame(
1634 &self,
1635 display_row: DisplayRow,
1636 row_info: &RowInfo,
1637 line_layout: &LineWithInvisibles,
1638 crease_trailer: Option<&CreaseTrailerLayout>,
1639 em_width: Pixels,
1640 content_origin: gpui::Point<Pixels>,
1641 scroll_pixel_position: gpui::Point<Pixels>,
1642 line_height: Pixels,
1643 window: &mut Window,
1644 cx: &mut App,
1645 ) -> Option<AnyElement> {
1646 if !self
1647 .editor
1648 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1649 {
1650 return None;
1651 }
1652
1653 let workspace = self
1654 .editor
1655 .read(cx)
1656 .workspace
1657 .as_ref()
1658 .map(|(w, _)| w.clone());
1659
1660 let editor = self.editor.read(cx);
1661 let blame = editor.blame.clone()?;
1662 let padding = {
1663 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1664 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1665
1666 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1667
1668 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1669 match &inline_completion.completion {
1670 InlineCompletion::Edit {
1671 display_mode: EditDisplayMode::TabAccept(_),
1672 ..
1673 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1674 _ => {}
1675 }
1676 }
1677
1678 padding * em_width
1679 };
1680
1681 let blame_entry = blame
1682 .update(cx, |blame, cx| {
1683 blame.blame_for_rows(&[*row_info], cx).next()
1684 })
1685 .flatten()?;
1686
1687 let mut element =
1688 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1689
1690 let start_y = content_origin.y
1691 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1692
1693 let start_x = {
1694 let line_end = if let Some(crease_trailer) = crease_trailer {
1695 crease_trailer.bounds.right()
1696 } else {
1697 content_origin.x - scroll_pixel_position.x + line_layout.width
1698 };
1699
1700 let padded_line_end = line_end + padding;
1701
1702 let min_column_in_pixels = ProjectSettings::get_global(cx)
1703 .git
1704 .inline_blame
1705 .and_then(|settings| settings.min_column)
1706 .map(|col| self.column_pixels(col as usize, window, cx))
1707 .unwrap_or(px(0.));
1708 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1709
1710 cmp::max(padded_line_end, min_start)
1711 };
1712
1713 let absolute_offset = point(start_x, start_y);
1714 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1715
1716 Some(element)
1717 }
1718
1719 #[allow(clippy::too_many_arguments)]
1720 fn layout_blame_entries(
1721 &self,
1722 buffer_rows: &[RowInfo],
1723 em_width: Pixels,
1724 scroll_position: gpui::Point<f32>,
1725 line_height: Pixels,
1726 gutter_hitbox: &Hitbox,
1727 max_width: Option<Pixels>,
1728 window: &mut Window,
1729 cx: &mut App,
1730 ) -> Option<Vec<AnyElement>> {
1731 if !self
1732 .editor
1733 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1734 {
1735 return None;
1736 }
1737
1738 let blame = self.editor.read(cx).blame.clone()?;
1739 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1740 blame.blame_for_rows(buffer_rows, cx).collect()
1741 });
1742
1743 let width = if let Some(max_width) = max_width {
1744 AvailableSpace::Definite(max_width)
1745 } else {
1746 AvailableSpace::MaxContent
1747 };
1748 let scroll_top = scroll_position.y * line_height;
1749 let start_x = em_width;
1750
1751 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1752
1753 let shaped_lines = blamed_rows
1754 .into_iter()
1755 .enumerate()
1756 .flat_map(|(ix, blame_entry)| {
1757 if let Some(blame_entry) = blame_entry {
1758 let mut element = render_blame_entry(
1759 ix,
1760 &blame,
1761 blame_entry,
1762 &self.style,
1763 &mut last_used_color,
1764 self.editor.clone(),
1765 cx,
1766 );
1767
1768 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1769 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1770
1771 element.prepaint_as_root(
1772 absolute_offset,
1773 size(width, AvailableSpace::MinContent),
1774 window,
1775 cx,
1776 );
1777
1778 Some(element)
1779 } else {
1780 None
1781 }
1782 })
1783 .collect();
1784
1785 Some(shaped_lines)
1786 }
1787
1788 #[allow(clippy::too_many_arguments)]
1789 fn layout_indent_guides(
1790 &self,
1791 content_origin: gpui::Point<Pixels>,
1792 text_origin: gpui::Point<Pixels>,
1793 visible_buffer_range: Range<MultiBufferRow>,
1794 scroll_pixel_position: gpui::Point<Pixels>,
1795 line_height: Pixels,
1796 snapshot: &DisplaySnapshot,
1797 window: &mut Window,
1798 cx: &mut App,
1799 ) -> Option<Vec<IndentGuideLayout>> {
1800 let indent_guides = self.editor.update(cx, |editor, cx| {
1801 editor.indent_guides(visible_buffer_range, snapshot, cx)
1802 })?;
1803
1804 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1805 editor
1806 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1807 .unwrap_or_default()
1808 });
1809
1810 Some(
1811 indent_guides
1812 .into_iter()
1813 .enumerate()
1814 .filter_map(|(i, indent_guide)| {
1815 let single_indent_width =
1816 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1817 let total_width = single_indent_width * indent_guide.depth as f32;
1818 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1819 if start_x >= text_origin.x {
1820 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1821 indent_guide.start_row..indent_guide.end_row,
1822 line_height,
1823 snapshot,
1824 );
1825
1826 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1827
1828 Some(IndentGuideLayout {
1829 origin: point(start_x, start_y),
1830 length,
1831 single_indent_width,
1832 depth: indent_guide.depth,
1833 active: active_indent_guide_indices.contains(&i),
1834 settings: indent_guide.settings,
1835 })
1836 } else {
1837 None
1838 }
1839 })
1840 .collect(),
1841 )
1842 }
1843
1844 fn calculate_indent_guide_bounds(
1845 row_range: Range<MultiBufferRow>,
1846 line_height: Pixels,
1847 snapshot: &DisplaySnapshot,
1848 ) -> (gpui::Pixels, gpui::Pixels) {
1849 let start_point = Point::new(row_range.start.0, 0);
1850 let end_point = Point::new(row_range.end.0, 0);
1851
1852 let row_range = start_point.to_display_point(snapshot).row()
1853 ..end_point.to_display_point(snapshot).row();
1854
1855 let mut prev_line = start_point;
1856 prev_line.row = prev_line.row.saturating_sub(1);
1857 let prev_line = prev_line.to_display_point(snapshot).row();
1858
1859 let mut cons_line = end_point;
1860 cons_line.row += 1;
1861 let cons_line = cons_line.to_display_point(snapshot).row();
1862
1863 let mut offset_y = row_range.start.0 as f32 * line_height;
1864 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1865
1866 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1867 if row_range.end == cons_line {
1868 length += line_height;
1869 }
1870
1871 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1872 // we want to extend the indent guide to the start of the block.
1873 let mut block_height = 0;
1874 let mut block_offset = 0;
1875 let mut found_excerpt_header = false;
1876 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1877 if matches!(block, Block::ExcerptBoundary { .. }) {
1878 found_excerpt_header = true;
1879 break;
1880 }
1881 block_offset += block.height();
1882 block_height += block.height();
1883 }
1884 if !found_excerpt_header {
1885 offset_y -= block_offset as f32 * line_height;
1886 length += block_height as f32 * line_height;
1887 }
1888
1889 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1890 // we want to ensure that the indent guide stops before the excerpt header.
1891 let mut block_height = 0;
1892 let mut found_excerpt_header = false;
1893 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1894 if matches!(block, Block::ExcerptBoundary { .. }) {
1895 found_excerpt_header = true;
1896 }
1897 block_height += block.height();
1898 }
1899 if found_excerpt_header {
1900 length -= block_height as f32 * line_height;
1901 }
1902
1903 (offset_y, length)
1904 }
1905
1906 #[allow(clippy::too_many_arguments)]
1907 fn layout_run_indicators(
1908 &self,
1909 line_height: Pixels,
1910 range: Range<DisplayRow>,
1911 scroll_pixel_position: gpui::Point<Pixels>,
1912 gutter_dimensions: &GutterDimensions,
1913 gutter_hitbox: &Hitbox,
1914 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1915 snapshot: &EditorSnapshot,
1916 window: &mut Window,
1917 cx: &mut App,
1918 ) -> Vec<AnyElement> {
1919 self.editor.update(cx, |editor, cx| {
1920 let active_task_indicator_row =
1921 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1922 deployed_from_indicator,
1923 actions,
1924 ..
1925 })) = editor.context_menu.borrow().as_ref()
1926 {
1927 actions
1928 .tasks
1929 .as_ref()
1930 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1931 .or(*deployed_from_indicator)
1932 } else {
1933 None
1934 };
1935
1936 let offset_range_start = snapshot
1937 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1938 .to_offset(&snapshot.buffer_snapshot);
1939 let offset_range_end = snapshot
1940 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1941 .to_offset(&snapshot.buffer_snapshot);
1942
1943 editor
1944 .tasks
1945 .iter()
1946 .filter_map(|(_, tasks)| {
1947 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1948 return None;
1949 }
1950 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1951 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1952 let buffer_folded = snapshot
1953 .buffer_snapshot
1954 .buffer_line_for_row(multibuffer_row)
1955 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1956 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1957 .unwrap_or(false);
1958 if buffer_folded {
1959 return None;
1960 }
1961
1962 if snapshot.is_line_folded(multibuffer_row) {
1963 // Skip folded indicators, unless it's the starting line of a fold.
1964 if multibuffer_row
1965 .0
1966 .checked_sub(1)
1967 .map_or(false, |previous_row| {
1968 snapshot.is_line_folded(MultiBufferRow(previous_row))
1969 })
1970 {
1971 return None;
1972 }
1973 }
1974 let display_row = multibuffer_point.to_display_point(snapshot).row();
1975 let button = editor.render_run_indicator(
1976 &self.style,
1977 Some(display_row) == active_task_indicator_row,
1978 display_row,
1979 cx,
1980 );
1981
1982 let button = prepaint_gutter_button(
1983 button,
1984 display_row,
1985 line_height,
1986 gutter_dimensions,
1987 scroll_pixel_position,
1988 gutter_hitbox,
1989 rows_with_hunk_bounds,
1990 window,
1991 cx,
1992 );
1993 Some(button)
1994 })
1995 .collect_vec()
1996 })
1997 }
1998
1999 #[allow(clippy::too_many_arguments)]
2000 fn layout_code_actions_indicator(
2001 &self,
2002 line_height: Pixels,
2003 newest_selection_head: DisplayPoint,
2004 scroll_pixel_position: gpui::Point<Pixels>,
2005 gutter_dimensions: &GutterDimensions,
2006 gutter_hitbox: &Hitbox,
2007 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
2008 window: &mut Window,
2009 cx: &mut App,
2010 ) -> Option<AnyElement> {
2011 let mut active = false;
2012 let mut button = None;
2013 let row = newest_selection_head.row();
2014 self.editor.update(cx, |editor, cx| {
2015 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2016 deployed_from_indicator,
2017 ..
2018 })) = editor.context_menu.borrow().as_ref()
2019 {
2020 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2021 };
2022 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2023 });
2024
2025 let button = prepaint_gutter_button(
2026 button?,
2027 row,
2028 line_height,
2029 gutter_dimensions,
2030 scroll_pixel_position,
2031 gutter_hitbox,
2032 rows_with_hunk_bounds,
2033 window,
2034 cx,
2035 );
2036
2037 Some(button)
2038 }
2039
2040 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2041 if let Some(index) = participant_index {
2042 cx.theme().players().color_for_participant(index.0)
2043 } else {
2044 cx.theme().players().absent()
2045 }
2046 }
2047
2048 fn calculate_relative_line_numbers(
2049 &self,
2050 snapshot: &EditorSnapshot,
2051 rows: &Range<DisplayRow>,
2052 relative_to: Option<DisplayRow>,
2053 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2054 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2055 let Some(relative_to) = relative_to else {
2056 return relative_rows;
2057 };
2058
2059 let start = rows.start.min(relative_to);
2060 let end = rows.end.max(relative_to);
2061
2062 let buffer_rows = snapshot
2063 .row_infos(start)
2064 .take(1 + end.minus(start) as usize)
2065 .collect::<Vec<_>>();
2066
2067 let head_idx = relative_to.minus(start);
2068 let mut delta = 1;
2069 let mut i = head_idx + 1;
2070 while i < buffer_rows.len() as u32 {
2071 if buffer_rows[i as usize].buffer_row.is_some() {
2072 if rows.contains(&DisplayRow(i + start.0)) {
2073 relative_rows.insert(DisplayRow(i + start.0), delta);
2074 }
2075 delta += 1;
2076 }
2077 i += 1;
2078 }
2079 delta = 1;
2080 i = head_idx.min(buffer_rows.len() as u32 - 1);
2081 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2082 i -= 1;
2083 }
2084
2085 while i > 0 {
2086 i -= 1;
2087 if buffer_rows[i as usize].buffer_row.is_some() {
2088 if rows.contains(&DisplayRow(i + start.0)) {
2089 relative_rows.insert(DisplayRow(i + start.0), delta);
2090 }
2091 delta += 1;
2092 }
2093 }
2094
2095 relative_rows
2096 }
2097
2098 #[allow(clippy::too_many_arguments)]
2099 fn layout_line_numbers(
2100 &self,
2101 gutter_hitbox: Option<&Hitbox>,
2102 gutter_dimensions: GutterDimensions,
2103 line_height: Pixels,
2104 scroll_position: gpui::Point<f32>,
2105 rows: Range<DisplayRow>,
2106 buffer_rows: &[RowInfo],
2107 newest_selection_head: Option<DisplayPoint>,
2108 snapshot: &EditorSnapshot,
2109 window: &mut Window,
2110 cx: &mut App,
2111 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2112 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2113 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2114 });
2115 if !include_line_numbers {
2116 return Arc::default();
2117 }
2118
2119 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2120 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2121 let newest = editor.selections.newest::<Point>(cx);
2122 SelectionLayout::new(
2123 newest,
2124 editor.selections.line_mode,
2125 editor.cursor_shape,
2126 &snapshot.display_snapshot,
2127 true,
2128 true,
2129 None,
2130 )
2131 .head
2132 });
2133 let is_relative = editor.should_use_relative_line_numbers(cx);
2134 (newest_selection_head, is_relative)
2135 });
2136
2137 let relative_to = if is_relative {
2138 Some(newest_selection_head.row())
2139 } else {
2140 None
2141 };
2142 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2143 let mut line_number = String::new();
2144 let line_numbers = buffer_rows
2145 .into_iter()
2146 .enumerate()
2147 .flat_map(|(ix, row_info)| {
2148 let display_row = DisplayRow(rows.start.0 + ix as u32);
2149 line_number.clear();
2150 let non_relative_number = row_info.buffer_row? + 1;
2151 let number = relative_rows
2152 .get(&display_row)
2153 .unwrap_or(&non_relative_number);
2154 write!(&mut line_number, "{number}").unwrap();
2155 if row_info.diff_status == Some(DiffHunkStatus::Removed) {
2156 return None;
2157 }
2158
2159 let color = cx.theme().colors().editor_line_number;
2160 let shaped_line = self
2161 .shape_line_number(SharedString::from(&line_number), color, window)
2162 .log_err()?;
2163 let scroll_top = scroll_position.y * line_height;
2164 let line_origin = gutter_hitbox.map(|hitbox| {
2165 hitbox.origin
2166 + point(
2167 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2168 ix as f32 * line_height - (scroll_top % line_height),
2169 )
2170 });
2171
2172 #[cfg(not(test))]
2173 let hitbox = line_origin.map(|line_origin| {
2174 window.insert_hitbox(
2175 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2176 false,
2177 )
2178 });
2179 #[cfg(test)]
2180 let hitbox = {
2181 let _ = line_origin;
2182 None
2183 };
2184
2185 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2186 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2187 let line_number = LineNumberLayout {
2188 shaped_line,
2189 hitbox,
2190 display_row,
2191 };
2192 Some((multi_buffer_row, line_number))
2193 })
2194 .collect();
2195 Arc::new(line_numbers)
2196 }
2197
2198 fn layout_crease_toggles(
2199 &self,
2200 rows: Range<DisplayRow>,
2201 row_infos: &[RowInfo],
2202 active_rows: &BTreeMap<DisplayRow, bool>,
2203 snapshot: &EditorSnapshot,
2204 window: &mut Window,
2205 cx: &mut App,
2206 ) -> Vec<Option<AnyElement>> {
2207 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2208 && snapshot.mode == EditorMode::Full
2209 && self.editor.read(cx).is_singleton(cx);
2210 if include_fold_statuses {
2211 row_infos
2212 .into_iter()
2213 .enumerate()
2214 .map(|(ix, info)| {
2215 let row = info.multibuffer_row?;
2216 let display_row = DisplayRow(rows.start.0 + ix as u32);
2217 let active = active_rows.contains_key(&display_row);
2218
2219 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2220 })
2221 .collect()
2222 } else {
2223 Vec::new()
2224 }
2225 }
2226
2227 fn layout_crease_trailers(
2228 &self,
2229 buffer_rows: impl IntoIterator<Item = RowInfo>,
2230 snapshot: &EditorSnapshot,
2231 window: &mut Window,
2232 cx: &mut App,
2233 ) -> Vec<Option<AnyElement>> {
2234 buffer_rows
2235 .into_iter()
2236 .map(|row_info| {
2237 if let Some(row) = row_info.multibuffer_row {
2238 snapshot.render_crease_trailer(row, window, cx)
2239 } else {
2240 None
2241 }
2242 })
2243 .collect()
2244 }
2245
2246 fn layout_lines(
2247 rows: Range<DisplayRow>,
2248 snapshot: &EditorSnapshot,
2249 style: &EditorStyle,
2250 editor_width: Pixels,
2251 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2252 window: &mut Window,
2253 cx: &mut App,
2254 ) -> Vec<LineWithInvisibles> {
2255 if rows.start >= rows.end {
2256 return Vec::new();
2257 }
2258
2259 // Show the placeholder when the editor is empty
2260 if snapshot.is_empty() {
2261 let font_size = style.text.font_size.to_pixels(window.rem_size());
2262 let placeholder_color = cx.theme().colors().text_placeholder;
2263 let placeholder_text = snapshot.placeholder_text();
2264
2265 let placeholder_lines = placeholder_text
2266 .as_ref()
2267 .map_or("", AsRef::as_ref)
2268 .split('\n')
2269 .skip(rows.start.0 as usize)
2270 .chain(iter::repeat(""))
2271 .take(rows.len());
2272 placeholder_lines
2273 .filter_map(move |line| {
2274 let run = TextRun {
2275 len: line.len(),
2276 font: style.text.font(),
2277 color: placeholder_color,
2278 background_color: None,
2279 underline: Default::default(),
2280 strikethrough: None,
2281 };
2282 window
2283 .text_system()
2284 .shape_line(line.to_string().into(), font_size, &[run])
2285 .log_err()
2286 })
2287 .map(|line| LineWithInvisibles {
2288 width: line.width,
2289 len: line.len,
2290 fragments: smallvec![LineFragment::Text(line)],
2291 invisibles: Vec::new(),
2292 font_size,
2293 })
2294 .collect()
2295 } else {
2296 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2297 LineWithInvisibles::from_chunks(
2298 chunks,
2299 &style,
2300 MAX_LINE_LEN,
2301 rows.len(),
2302 snapshot.mode,
2303 editor_width,
2304 is_row_soft_wrapped,
2305 window,
2306 cx,
2307 )
2308 }
2309 }
2310
2311 #[allow(clippy::too_many_arguments)]
2312 fn prepaint_lines(
2313 &self,
2314 start_row: DisplayRow,
2315 line_layouts: &mut [LineWithInvisibles],
2316 line_height: Pixels,
2317 scroll_pixel_position: gpui::Point<Pixels>,
2318 content_origin: gpui::Point<Pixels>,
2319 window: &mut Window,
2320 cx: &mut App,
2321 ) -> SmallVec<[AnyElement; 1]> {
2322 let mut line_elements = SmallVec::new();
2323 for (ix, line) in line_layouts.iter_mut().enumerate() {
2324 let row = start_row + DisplayRow(ix as u32);
2325 line.prepaint(
2326 line_height,
2327 scroll_pixel_position,
2328 row,
2329 content_origin,
2330 &mut line_elements,
2331 window,
2332 cx,
2333 );
2334 }
2335 line_elements
2336 }
2337
2338 #[allow(clippy::too_many_arguments)]
2339 fn render_block(
2340 &self,
2341 block: &Block,
2342 available_width: AvailableSpace,
2343 block_id: BlockId,
2344 block_row_start: DisplayRow,
2345 snapshot: &EditorSnapshot,
2346 text_x: Pixels,
2347 rows: &Range<DisplayRow>,
2348 line_layouts: &[LineWithInvisibles],
2349 gutter_dimensions: &GutterDimensions,
2350 line_height: Pixels,
2351 em_width: Pixels,
2352 text_hitbox: &Hitbox,
2353 editor_width: Pixels,
2354 scroll_width: &mut Pixels,
2355 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2356 selections: &[Selection<Point>],
2357 selected_buffer_ids: &Vec<BufferId>,
2358 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2359 sticky_header_excerpt_id: Option<ExcerptId>,
2360 window: &mut Window,
2361 cx: &mut App,
2362 ) -> (AnyElement, Size<Pixels>) {
2363 let mut element = match block {
2364 Block::Custom(block) => {
2365 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2366 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2367 let align_to = block_start.to_display_point(snapshot);
2368 let anchor_x = text_x
2369 + if rows.contains(&align_to.row()) {
2370 line_layouts[align_to.row().minus(rows.start) as usize]
2371 .x_for_index(align_to.column() as usize)
2372 } else {
2373 layout_line(
2374 align_to.row(),
2375 snapshot,
2376 &self.style,
2377 editor_width,
2378 is_row_soft_wrapped,
2379 window,
2380 cx,
2381 )
2382 .x_for_index(align_to.column() as usize)
2383 };
2384
2385 let selected = selections
2386 .binary_search_by(|selection| {
2387 if selection.end <= block_start {
2388 Ordering::Less
2389 } else if selection.start >= block_end {
2390 Ordering::Greater
2391 } else {
2392 Ordering::Equal
2393 }
2394 })
2395 .is_ok();
2396
2397 div()
2398 .size_full()
2399 .child(block.render(&mut BlockContext {
2400 window,
2401 app: cx,
2402 anchor_x,
2403 gutter_dimensions,
2404 line_height,
2405 em_width,
2406 block_id,
2407 selected,
2408 max_width: text_hitbox.size.width.max(*scroll_width),
2409 editor_style: &self.style,
2410 }))
2411 .into_any()
2412 }
2413
2414 Block::FoldedBuffer {
2415 first_excerpt,
2416 prev_excerpt,
2417 show_excerpt_controls,
2418 height,
2419 } => {
2420 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2421 let icon_offset = gutter_dimensions.width
2422 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2423 let mut result = v_flex().id(block_id).w_full();
2424
2425 if let Some(prev_excerpt) = prev_excerpt {
2426 if *show_excerpt_controls {
2427 result =
2428 result.child(
2429 h_flex()
2430 .id("expand_down_hit_area")
2431 .w(icon_offset)
2432 .h(MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32
2433 * window.line_height())
2434 .flex_none()
2435 .justify_end()
2436 .child(self.render_expand_excerpt_button(
2437 IconName::ArrowDownFromLine,
2438 None,
2439 cx,
2440 ))
2441 .on_click(window.listener_for(&self.editor, {
2442 let excerpt_id = prev_excerpt.id;
2443 let direction = ExpandExcerptDirection::Down;
2444 move |editor, _, _, cx| {
2445 editor.expand_excerpt(excerpt_id, direction, cx);
2446 cx.stop_propagation();
2447 }
2448 })),
2449 );
2450 }
2451 }
2452
2453 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2454 result
2455 .child(self.render_buffer_header(
2456 first_excerpt,
2457 true,
2458 selected,
2459 jump_data,
2460 window,
2461 cx,
2462 ))
2463 .into_any_element()
2464 }
2465
2466 Block::ExcerptBoundary {
2467 prev_excerpt,
2468 next_excerpt,
2469 show_excerpt_controls,
2470 height,
2471 starts_new_buffer,
2472 } => {
2473 let icon_offset = gutter_dimensions.width
2474 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2475 let header_height =
2476 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2477 let color = cx.theme().colors().clone();
2478 let hover_color = color.border_variant.opacity(0.5);
2479 let focus_handle = self.editor.focus_handle(cx).clone();
2480
2481 let mut result = v_flex().id(block_id).w_full();
2482 let expand_area = |id: SharedString| {
2483 h_flex()
2484 .id(id)
2485 .w_full()
2486 .cursor_pointer()
2487 .block_mouse_down()
2488 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2489 .hover(|style| style.bg(hover_color))
2490 .tooltip({
2491 let focus_handle = focus_handle.clone();
2492 move |window, cx| {
2493 Tooltip::for_action_in(
2494 "Expand Excerpt",
2495 &ExpandExcerpts { lines: 0 },
2496 &focus_handle,
2497 window,
2498 cx,
2499 )
2500 }
2501 })
2502 };
2503
2504 if let Some(prev_excerpt) = prev_excerpt {
2505 if *show_excerpt_controls {
2506 let group_name = "expand-down";
2507
2508 result = result.child(
2509 expand_area(format!("block-{}-down", block_id).into())
2510 .group(group_name)
2511 .child(
2512 h_flex()
2513 .w(icon_offset)
2514 .h(header_height)
2515 .flex_none()
2516 .justify_end()
2517 .child(self.render_expand_excerpt_button(
2518 IconName::ArrowDownFromLine,
2519 Some(group_name.to_string()),
2520 cx,
2521 )),
2522 )
2523 .on_click(window.listener_for(&self.editor, {
2524 let excerpt_id = prev_excerpt.id;
2525 let direction = ExpandExcerptDirection::Down;
2526 move |editor, _, _, cx| {
2527 editor.expand_excerpt(excerpt_id, direction, cx);
2528 cx.stop_propagation();
2529 }
2530 })),
2531 );
2532 }
2533 }
2534
2535 if let Some(next_excerpt) = next_excerpt {
2536 let jump_data =
2537 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2538
2539 if *starts_new_buffer {
2540 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2541 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2542
2543 result = result.child(self.render_buffer_header(
2544 next_excerpt,
2545 false,
2546 selected,
2547 jump_data,
2548 window,
2549 cx,
2550 ));
2551 } else {
2552 result = result
2553 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2554 }
2555
2556 if *show_excerpt_controls {
2557 let group_name = "expand-up-first";
2558
2559 result = result.child(
2560 h_flex().group(group_name).child(
2561 expand_area(format!("block-{}-up-first", block_id).into())
2562 .h(header_height)
2563 .child(
2564 h_flex()
2565 .w(icon_offset)
2566 .h(header_height)
2567 .flex_none()
2568 .justify_end()
2569 .child(self.render_expand_excerpt_button(
2570 IconName::ArrowUpFromLine,
2571 Some(group_name.to_string()),
2572 cx,
2573 )),
2574 )
2575 .on_click(window.listener_for(&self.editor, {
2576 let excerpt_id = next_excerpt.id;
2577 let direction = ExpandExcerptDirection::Up;
2578 move |editor, _, _, cx| {
2579 editor.expand_excerpt(excerpt_id, direction, cx);
2580 cx.stop_propagation();
2581 }
2582 })),
2583 ),
2584 );
2585 }
2586 } else {
2587 let group_name = "expand-up-subsequent";
2588
2589 if *show_excerpt_controls {
2590 result = result.child(
2591 h_flex()
2592 .relative()
2593 .group(group_name)
2594 .child(
2595 div()
2596 .top(px(0.))
2597 .absolute()
2598 .w_full()
2599 .h_px()
2600 .bg(color.border_variant),
2601 )
2602 .child(
2603 expand_area(format!("block-{}-up", block_id).into())
2604 .h(header_height)
2605 .child(
2606 h_flex()
2607 .w(icon_offset)
2608 .h(header_height)
2609 .flex_none()
2610 .justify_end()
2611 .child(if *show_excerpt_controls {
2612 self.render_expand_excerpt_button(
2613 IconName::ArrowUpFromLine,
2614 Some(group_name.to_string()),
2615 cx,
2616 )
2617 } else {
2618 ButtonLike::new("jump-icon")
2619 .style(ButtonStyle::Transparent)
2620 .child(
2621 svg()
2622 .path(
2623 IconName::ArrowUpRight
2624 .path(),
2625 )
2626 .size(IconSize::XSmall.rems())
2627 .text_color(
2628 color.border_variant,
2629 )
2630 .group_hover(
2631 group_name,
2632 |style| {
2633 style.text_color(
2634 color.border,
2635 )
2636 },
2637 ),
2638 )
2639 }),
2640 )
2641 .on_click(window.listener_for(&self.editor, {
2642 let excerpt_id = next_excerpt.id;
2643 let direction = ExpandExcerptDirection::Up;
2644 move |editor, _, _, cx| {
2645 editor
2646 .expand_excerpt(excerpt_id, direction, cx);
2647 cx.stop_propagation();
2648 }
2649 })),
2650 ),
2651 );
2652 }
2653 };
2654 }
2655
2656 result.into_any()
2657 }
2658 };
2659
2660 // Discover the element's content height, then round up to the nearest multiple of line height.
2661 let preliminary_size = element.layout_as_root(
2662 size(available_width, AvailableSpace::MinContent),
2663 window,
2664 cx,
2665 );
2666 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2667 let final_size = if preliminary_size.height == quantized_height {
2668 preliminary_size
2669 } else {
2670 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2671 };
2672
2673 if let BlockId::Custom(custom_block_id) = block_id {
2674 if block.height() > 0 {
2675 let element_height_in_lines =
2676 ((final_size.height / line_height).ceil() as u32).max(1);
2677 if element_height_in_lines != block.height() {
2678 resized_blocks.insert(custom_block_id, element_height_in_lines);
2679 }
2680 }
2681 }
2682
2683 (element, final_size)
2684 }
2685
2686 fn render_buffer_header(
2687 &self,
2688 for_excerpt: &ExcerptInfo,
2689 is_folded: bool,
2690 is_selected: bool,
2691 jump_data: JumpData,
2692 window: &mut Window,
2693 cx: &mut App,
2694 ) -> Div {
2695 let include_root = self
2696 .editor
2697 .read(cx)
2698 .project
2699 .as_ref()
2700 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2701 .unwrap_or_default();
2702 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2703 let filename = path
2704 .as_ref()
2705 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2706 let parent_path = path.as_ref().and_then(|path| {
2707 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2708 });
2709 let focus_handle = self.editor.focus_handle(cx);
2710 let colors = cx.theme().colors();
2711
2712 div()
2713 .px_2()
2714 .pt_2()
2715 .w_full()
2716 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2717 .child(
2718 h_flex()
2719 .size_full()
2720 .gap_2()
2721 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2722 .pl_0p5()
2723 .pr_5()
2724 .rounded_md()
2725 .shadow_md()
2726 .border_1()
2727 .map(|div| {
2728 let border_color = if is_selected && is_folded {
2729 colors.border_focused
2730 } else {
2731 colors.border
2732 };
2733 div.border_color(border_color)
2734 })
2735 .bg(colors.editor_subheader_background)
2736 .hover(|style| style.bg(colors.element_hover))
2737 .map(|header| {
2738 let editor = self.editor.clone();
2739 let buffer_id = for_excerpt.buffer_id;
2740 let toggle_chevron_icon =
2741 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2742 header.child(
2743 div()
2744 .hover(|style| style.bg(colors.element_selected))
2745 .rounded_sm()
2746 .child(
2747 ButtonLike::new("toggle-buffer-fold")
2748 .style(ui::ButtonStyle::Transparent)
2749 .size(ButtonSize::Large)
2750 .width(px(30.).into())
2751 .children(toggle_chevron_icon)
2752 .tooltip({
2753 let focus_handle = focus_handle.clone();
2754 move |window, cx| {
2755 Tooltip::for_action_in(
2756 "Toggle Excerpt Fold",
2757 &ToggleFold,
2758 &focus_handle,
2759 window,
2760 cx,
2761 )
2762 }
2763 })
2764 .on_click(move |_, _, cx| {
2765 if is_folded {
2766 editor.update(cx, |editor, cx| {
2767 editor.unfold_buffer(buffer_id, cx);
2768 });
2769 } else {
2770 editor.update(cx, |editor, cx| {
2771 editor.fold_buffer(buffer_id, cx);
2772 });
2773 }
2774 }),
2775 ),
2776 )
2777 })
2778 .child(
2779 h_flex()
2780 .cursor_pointer()
2781 .id("path header block")
2782 .size_full()
2783 .justify_between()
2784 .child(
2785 h_flex()
2786 .gap_2()
2787 .child(
2788 filename
2789 .map(SharedString::from)
2790 .unwrap_or_else(|| "untitled".into()),
2791 )
2792 .when_some(parent_path, |then, path| {
2793 then.child(div().child(path).text_color(colors.text_muted))
2794 }),
2795 )
2796 .when(is_selected, |el| {
2797 el.child(
2798 h_flex()
2799 .id("jump-to-file-button")
2800 .gap_2p5()
2801 .child(Label::new("Jump To File"))
2802 .children(
2803 KeyBinding::for_action_in(
2804 &OpenExcerpts,
2805 &focus_handle,
2806 window,
2807 )
2808 .map(|binding| binding.into_any_element()),
2809 ),
2810 )
2811 })
2812 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2813 .on_click(window.listener_for(&self.editor, {
2814 move |editor, e: &ClickEvent, window, cx| {
2815 editor.open_excerpts_common(
2816 Some(jump_data.clone()),
2817 e.down.modifiers.secondary(),
2818 window,
2819 cx,
2820 );
2821 }
2822 })),
2823 ),
2824 )
2825 }
2826
2827 fn render_expand_excerpt_button(
2828 &self,
2829 icon: IconName,
2830 group_name: impl Into<Option<String>>,
2831 cx: &mut App,
2832 ) -> ButtonLike {
2833 let group_name = group_name.into();
2834 ButtonLike::new("expand-icon")
2835 .style(ButtonStyle::Transparent)
2836 .child(
2837 svg()
2838 .path(icon.path())
2839 .size(IconSize::XSmall.rems())
2840 .text_color(cx.theme().colors().editor_line_number)
2841 .when_some(group_name, |svg, group_name| {
2842 svg.group_hover(group_name, |style| {
2843 style.text_color(cx.theme().colors().editor_active_line_number)
2844 })
2845 }),
2846 )
2847 }
2848
2849 #[allow(clippy::too_many_arguments)]
2850 fn render_blocks(
2851 &self,
2852 rows: Range<DisplayRow>,
2853 snapshot: &EditorSnapshot,
2854 hitbox: &Hitbox,
2855 text_hitbox: &Hitbox,
2856 editor_width: Pixels,
2857 scroll_width: &mut Pixels,
2858 gutter_dimensions: &GutterDimensions,
2859 em_width: Pixels,
2860 text_x: Pixels,
2861 line_height: Pixels,
2862 line_layouts: &[LineWithInvisibles],
2863 selections: &[Selection<Point>],
2864 selected_buffer_ids: &Vec<BufferId>,
2865 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2866 sticky_header_excerpt_id: Option<ExcerptId>,
2867 window: &mut Window,
2868 cx: &mut App,
2869 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2870 let (fixed_blocks, non_fixed_blocks) = snapshot
2871 .blocks_in_range(rows.clone())
2872 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2873
2874 let mut focused_block = self
2875 .editor
2876 .update(cx, |editor, _| editor.take_focused_block());
2877 let mut fixed_block_max_width = Pixels::ZERO;
2878 let mut blocks = Vec::new();
2879 let mut resized_blocks = HashMap::default();
2880
2881 for (row, block) in fixed_blocks {
2882 let block_id = block.id();
2883
2884 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2885 focused_block = None;
2886 }
2887
2888 let (element, element_size) = self.render_block(
2889 block,
2890 AvailableSpace::MinContent,
2891 block_id,
2892 row,
2893 snapshot,
2894 text_x,
2895 &rows,
2896 line_layouts,
2897 gutter_dimensions,
2898 line_height,
2899 em_width,
2900 text_hitbox,
2901 editor_width,
2902 scroll_width,
2903 &mut resized_blocks,
2904 selections,
2905 selected_buffer_ids,
2906 is_row_soft_wrapped,
2907 sticky_header_excerpt_id,
2908 window,
2909 cx,
2910 );
2911 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2912 blocks.push(BlockLayout {
2913 id: block_id,
2914 row: Some(row),
2915 element,
2916 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2917 style: BlockStyle::Fixed,
2918 });
2919 }
2920
2921 for (row, block) in non_fixed_blocks {
2922 let style = block.style();
2923 let width = match style {
2924 BlockStyle::Sticky => hitbox.size.width,
2925 BlockStyle::Flex => hitbox
2926 .size
2927 .width
2928 .max(fixed_block_max_width)
2929 .max(gutter_dimensions.width + *scroll_width),
2930 BlockStyle::Fixed => unreachable!(),
2931 };
2932 let block_id = block.id();
2933
2934 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2935 focused_block = None;
2936 }
2937
2938 let (element, element_size) = self.render_block(
2939 block,
2940 width.into(),
2941 block_id,
2942 row,
2943 snapshot,
2944 text_x,
2945 &rows,
2946 line_layouts,
2947 gutter_dimensions,
2948 line_height,
2949 em_width,
2950 text_hitbox,
2951 editor_width,
2952 scroll_width,
2953 &mut resized_blocks,
2954 selections,
2955 selected_buffer_ids,
2956 is_row_soft_wrapped,
2957 sticky_header_excerpt_id,
2958 window,
2959 cx,
2960 );
2961
2962 blocks.push(BlockLayout {
2963 id: block_id,
2964 row: Some(row),
2965 element,
2966 available_space: size(width.into(), element_size.height.into()),
2967 style,
2968 });
2969 }
2970
2971 if let Some(focused_block) = focused_block {
2972 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2973 if focus_handle.is_focused(window) {
2974 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2975 let style = block.style();
2976 let width = match style {
2977 BlockStyle::Fixed => AvailableSpace::MinContent,
2978 BlockStyle::Flex => AvailableSpace::Definite(
2979 hitbox
2980 .size
2981 .width
2982 .max(fixed_block_max_width)
2983 .max(gutter_dimensions.width + *scroll_width),
2984 ),
2985 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2986 };
2987
2988 let (element, element_size) = self.render_block(
2989 &block,
2990 width,
2991 focused_block.id,
2992 rows.end,
2993 snapshot,
2994 text_x,
2995 &rows,
2996 line_layouts,
2997 gutter_dimensions,
2998 line_height,
2999 em_width,
3000 text_hitbox,
3001 editor_width,
3002 scroll_width,
3003 &mut resized_blocks,
3004 selections,
3005 selected_buffer_ids,
3006 is_row_soft_wrapped,
3007 sticky_header_excerpt_id,
3008 window,
3009 cx,
3010 );
3011
3012 blocks.push(BlockLayout {
3013 id: block.id(),
3014 row: None,
3015 element,
3016 available_space: size(width, element_size.height.into()),
3017 style,
3018 });
3019 }
3020 }
3021 }
3022 }
3023
3024 if resized_blocks.is_empty() {
3025 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
3026 Ok(blocks)
3027 } else {
3028 Err(resized_blocks)
3029 }
3030 }
3031
3032 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
3033 /// a restart of rendering for the editor based on the new sizes.
3034 #[allow(clippy::too_many_arguments)]
3035 fn layout_blocks(
3036 &self,
3037 blocks: &mut Vec<BlockLayout>,
3038 block_starts: &mut HashSet<DisplayRow>,
3039 hitbox: &Hitbox,
3040 line_height: Pixels,
3041 scroll_pixel_position: gpui::Point<Pixels>,
3042 window: &mut Window,
3043 cx: &mut App,
3044 ) {
3045 for block in blocks {
3046 let mut origin = if let Some(row) = block.row {
3047 block_starts.insert(row);
3048 hitbox.origin
3049 + point(
3050 Pixels::ZERO,
3051 row.as_f32() * line_height - scroll_pixel_position.y,
3052 )
3053 } else {
3054 // Position the block outside the visible area
3055 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3056 };
3057
3058 if !matches!(block.style, BlockStyle::Sticky) {
3059 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3060 }
3061
3062 let focus_handle =
3063 block
3064 .element
3065 .prepaint_as_root(origin, block.available_space, window, cx);
3066
3067 if let Some(focus_handle) = focus_handle {
3068 self.editor.update(cx, |editor, _cx| {
3069 editor.set_focused_block(FocusedBlock {
3070 id: block.id,
3071 focus_handle: focus_handle.downgrade(),
3072 });
3073 });
3074 }
3075 }
3076 }
3077
3078 #[allow(clippy::too_many_arguments)]
3079 fn layout_sticky_buffer_header(
3080 &self,
3081 StickyHeaderExcerpt {
3082 excerpt,
3083 next_excerpt_controls_present,
3084 next_buffer_row,
3085 }: StickyHeaderExcerpt<'_>,
3086 scroll_position: f32,
3087 line_height: Pixels,
3088 snapshot: &EditorSnapshot,
3089 hitbox: &Hitbox,
3090 selected_buffer_ids: &Vec<BufferId>,
3091 window: &mut Window,
3092 cx: &mut App,
3093 ) -> AnyElement {
3094 let jump_data = header_jump_data(
3095 snapshot,
3096 DisplayRow(scroll_position as u32),
3097 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3098 excerpt,
3099 );
3100
3101 let editor_bg_color = cx.theme().colors().editor_background;
3102
3103 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3104
3105 let mut header = v_flex()
3106 .relative()
3107 .child(
3108 div()
3109 .w(hitbox.bounds.size.width)
3110 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3111 .bg(linear_gradient(
3112 0.,
3113 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3114 linear_color_stop(editor_bg_color, 0.6),
3115 ))
3116 .absolute()
3117 .top_0(),
3118 )
3119 .child(
3120 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3121 .into_any_element(),
3122 )
3123 .into_any_element();
3124
3125 let mut origin = hitbox.origin;
3126
3127 if let Some(next_buffer_row) = next_buffer_row {
3128 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3129
3130 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3131
3132 if next_excerpt_controls_present {
3133 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3134 }
3135
3136 let offset = scroll_position - max_row as f32;
3137
3138 if offset > 0.0 {
3139 origin.y -= Pixels(offset) * line_height;
3140 }
3141 }
3142
3143 let size = size(
3144 AvailableSpace::Definite(hitbox.size.width),
3145 AvailableSpace::MinContent,
3146 );
3147
3148 header.prepaint_as_root(origin, size, window, cx);
3149
3150 header
3151 }
3152
3153 #[allow(clippy::too_many_arguments)]
3154 fn layout_cursor_popovers(
3155 &self,
3156 line_height: Pixels,
3157 text_hitbox: &Hitbox,
3158 content_origin: gpui::Point<Pixels>,
3159 start_row: DisplayRow,
3160 scroll_pixel_position: gpui::Point<Pixels>,
3161 line_layouts: &[LineWithInvisibles],
3162 cursor: DisplayPoint,
3163 cursor_point: Point,
3164 style: &EditorStyle,
3165 window: &mut Window,
3166 cx: &mut App,
3167 ) {
3168 let mut min_menu_height = Pixels::ZERO;
3169 let mut max_menu_height = Pixels::ZERO;
3170 let mut height_above_menu = Pixels::ZERO;
3171 let height_below_menu = Pixels::ZERO;
3172 let mut edit_prediction_popover_visible = false;
3173 let mut context_menu_visible = false;
3174
3175 {
3176 let editor = self.editor.read(cx);
3177 if editor.has_active_completions_menu() && editor.show_inline_completions_in_menu(cx) {
3178 height_above_menu +=
3179 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3180 edit_prediction_popover_visible = true;
3181 }
3182
3183 if editor.context_menu_visible() {
3184 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3185 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3186 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3187 context_menu_visible = true;
3188 }
3189 }
3190 }
3191
3192 let visible = edit_prediction_popover_visible || context_menu_visible;
3193 if !visible {
3194 return;
3195 }
3196
3197 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3198 let target_position = content_origin
3199 + gpui::Point {
3200 x: cmp::max(
3201 px(0.),
3202 cursor_row_layout.x_for_index(cursor.column() as usize)
3203 - scroll_pixel_position.x,
3204 ),
3205 y: cmp::max(
3206 px(0.),
3207 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3208 ),
3209 };
3210
3211 let viewport_bounds =
3212 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3213 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3214 ..Default::default()
3215 });
3216
3217 let min_height = height_above_menu + min_menu_height + height_below_menu;
3218 let max_height = height_above_menu + max_menu_height + height_below_menu;
3219 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3220 target_position,
3221 line_height,
3222 min_height,
3223 max_height,
3224 text_hitbox,
3225 viewport_bounds,
3226 window,
3227 cx,
3228 |height, max_width_for_stable_x, y_flipped, window, cx| {
3229 // First layout the menu to get its size - others can be at least this wide.
3230 let context_menu = if context_menu_visible {
3231 let menu_height = if y_flipped {
3232 height - height_below_menu
3233 } else {
3234 height - height_above_menu
3235 };
3236 let mut element = self
3237 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3238 .unwrap();
3239 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3240 Some((CursorPopoverType::CodeContextMenu, element, size))
3241 } else {
3242 None
3243 };
3244 let min_width = context_menu
3245 .as_ref()
3246 .map_or(px(0.), |(_, _, size)| size.width);
3247 let max_width = max_width_for_stable_x.max(
3248 context_menu
3249 .as_ref()
3250 .map_or(px(0.), |(_, _, size)| size.width),
3251 );
3252
3253 let edit_prediction = if edit_prediction_popover_visible {
3254 let accept_keystroke: Option<Keystroke>;
3255
3256 // TODO: load modifier from keymap.
3257 // `bindings_for_action_in` returns `None` in Linux, and is intermittent on macOS
3258 #[cfg(target_os = "macos")]
3259 {
3260 // let bindings = window.bindings_for_action_in(
3261 // &crate::AcceptInlineCompletion,
3262 // &self.editor.focus_handle(cx),
3263 // );
3264
3265 // let last_binding = bindings.last();
3266
3267 // accept_keystroke = if let Some(binding) = last_binding {
3268 // match &binding.keystrokes() {
3269 // // TODO: no need to clone once this logic works on linux.
3270 // [keystroke] => Some(keystroke.clone()),
3271 // _ => None,
3272 // }
3273 // } else {
3274 // None
3275 // };
3276 accept_keystroke = Some(Keystroke {
3277 modifiers: gpui::Modifiers {
3278 alt: true,
3279 control: false,
3280 shift: false,
3281 platform: false,
3282 function: false,
3283 },
3284 key: "tab".to_string(),
3285 key_char: None,
3286 });
3287 }
3288
3289 #[cfg(not(target_os = "macos"))]
3290 {
3291 accept_keystroke = Some(Keystroke {
3292 modifiers: gpui::Modifiers {
3293 alt: true,
3294 control: false,
3295 shift: false,
3296 platform: false,
3297 function: false,
3298 },
3299 key: "enter".to_string(),
3300 key_char: None,
3301 });
3302 }
3303
3304 self.editor.update(cx, move |editor, cx| {
3305 let mut element = editor.render_edit_prediction_cursor_popover(
3306 min_width,
3307 max_width,
3308 cursor_point,
3309 &line_layouts,
3310 style,
3311 accept_keystroke.as_ref()?,
3312 window,
3313 cx,
3314 )?;
3315 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3316 Some((CursorPopoverType::EditPrediction, element, size))
3317 })
3318 } else {
3319 None
3320 };
3321 vec![edit_prediction, context_menu]
3322 .into_iter()
3323 .flatten()
3324 .collect::<Vec<_>>()
3325 },
3326 ) else {
3327 return;
3328 };
3329
3330 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3331 .iter()
3332 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3333 else {
3334 return;
3335 };
3336 let last_ix = laid_out_popovers.len() - 1;
3337 let menu_is_last = menu_ix == last_ix;
3338 let first_popover_bounds = laid_out_popovers[0].1;
3339 let last_popover_bounds = laid_out_popovers[last_ix].1;
3340
3341 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3342 // right, and otherwise it goes below or to the right.
3343 let mut target_bounds = Bounds::from_corners(
3344 first_popover_bounds.origin,
3345 last_popover_bounds.bottom_right(),
3346 );
3347 target_bounds.size.width = menu_bounds.size.width;
3348
3349 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3350 // based on this is preferred for layout stability.
3351 let mut max_target_bounds = target_bounds;
3352 max_target_bounds.size.height = max_height;
3353 if y_flipped {
3354 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3355 }
3356
3357 // Add spacing around `target_bounds` and `max_target_bounds`.
3358 let mut extend_amount = Edges::all(MENU_GAP);
3359 if y_flipped {
3360 extend_amount.bottom = line_height;
3361 } else {
3362 extend_amount.top = line_height;
3363 }
3364 let target_bounds = target_bounds.extend(extend_amount);
3365 let max_target_bounds = max_target_bounds.extend(extend_amount);
3366
3367 let must_place_above_or_below =
3368 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3369 laid_out_popovers[menu_ix + 1..]
3370 .iter()
3371 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3372 } else {
3373 false
3374 };
3375
3376 self.layout_context_menu_aside(
3377 y_flipped,
3378 *menu_bounds,
3379 target_bounds,
3380 max_target_bounds,
3381 max_menu_height,
3382 must_place_above_or_below,
3383 text_hitbox,
3384 viewport_bounds,
3385 window,
3386 cx,
3387 );
3388 }
3389
3390 #[allow(clippy::too_many_arguments)]
3391 fn layout_gutter_menu(
3392 &self,
3393 line_height: Pixels,
3394 text_hitbox: &Hitbox,
3395 content_origin: gpui::Point<Pixels>,
3396 scroll_pixel_position: gpui::Point<Pixels>,
3397 gutter_overshoot: Pixels,
3398 window: &mut Window,
3399 cx: &mut App,
3400 ) {
3401 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3402 self.editor.read(cx).context_menu_origin()
3403 else {
3404 return;
3405 };
3406 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3407 // indicator than just a plain first column of the text field.
3408 let target_position = content_origin
3409 + gpui::Point {
3410 x: -gutter_overshoot,
3411 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3412 };
3413 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3414 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3415 let viewport_bounds =
3416 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3417 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3418 ..Default::default()
3419 });
3420 self.layout_popovers_above_or_below_line(
3421 target_position,
3422 line_height,
3423 min_height,
3424 max_height,
3425 text_hitbox,
3426 viewport_bounds,
3427 window,
3428 cx,
3429 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3430 let Some(mut element) =
3431 self.render_context_menu(line_height, height, y_flipped, window, cx)
3432 else {
3433 return vec![];
3434 };
3435 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3436 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3437 },
3438 );
3439 }
3440
3441 #[allow(clippy::too_many_arguments)]
3442 fn layout_popovers_above_or_below_line(
3443 &self,
3444 target_position: gpui::Point<Pixels>,
3445 line_height: Pixels,
3446 min_height: Pixels,
3447 max_height: Pixels,
3448 text_hitbox: &Hitbox,
3449 viewport_bounds: Bounds<Pixels>,
3450 window: &mut Window,
3451 cx: &mut App,
3452 make_sized_popovers: impl FnOnce(
3453 Pixels,
3454 Pixels,
3455 bool,
3456 &mut Window,
3457 &mut App,
3458 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3459 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3460 // If the max height won't fit below and there is more space above, put it above the line.
3461 let bottom_y_when_flipped = target_position.y - line_height;
3462 let available_above = bottom_y_when_flipped - text_hitbox.top();
3463 let available_below = text_hitbox.bottom() - target_position.y;
3464 let y_overflows_below = max_height > available_below;
3465 let mut y_flipped = y_overflows_below && available_above > available_below;
3466 let mut height = cmp::min(
3467 max_height,
3468 if y_flipped {
3469 available_above
3470 } else {
3471 available_below
3472 },
3473 );
3474
3475 // If the min height doesn't fit within text bounds, instead fit within the window.
3476 if height < min_height {
3477 let available_above = bottom_y_when_flipped;
3478 let available_below = viewport_bounds.bottom() - target_position.y;
3479 if available_below > min_height {
3480 y_flipped = false;
3481 height = min_height;
3482 } else if available_above > min_height {
3483 y_flipped = true;
3484 height = min_height;
3485 } else if available_above > available_below {
3486 y_flipped = true;
3487 height = available_above;
3488 } else {
3489 y_flipped = false;
3490 height = available_below;
3491 }
3492 }
3493
3494 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3495
3496 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3497 // for very narrow windows.
3498 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3499 if popovers.is_empty() {
3500 return None;
3501 }
3502
3503 let max_width = popovers
3504 .iter()
3505 .map(|(_, _, size)| size.width)
3506 .max()
3507 .unwrap_or_default();
3508
3509 let mut current_position = gpui::Point {
3510 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3511 // overflow. Include space for the scrollbar.
3512 x: target_position
3513 .x
3514 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3515 y: if y_flipped {
3516 bottom_y_when_flipped
3517 } else {
3518 target_position.y
3519 },
3520 };
3521
3522 let mut laid_out_popovers = popovers
3523 .into_iter()
3524 .map(|(popover_type, element, size)| {
3525 if y_flipped {
3526 current_position.y -= size.height;
3527 }
3528 let position = current_position;
3529 window.defer_draw(element, current_position, 1);
3530 if !y_flipped {
3531 current_position.y += size.height + MENU_GAP;
3532 } else {
3533 current_position.y -= MENU_GAP;
3534 }
3535 (popover_type, Bounds::new(position, size))
3536 })
3537 .collect::<Vec<_>>();
3538
3539 if y_flipped {
3540 laid_out_popovers.reverse();
3541 }
3542
3543 Some((laid_out_popovers, y_flipped))
3544 }
3545
3546 #[allow(clippy::too_many_arguments)]
3547 fn layout_context_menu_aside(
3548 &self,
3549 y_flipped: bool,
3550 menu_bounds: Bounds<Pixels>,
3551 target_bounds: Bounds<Pixels>,
3552 max_target_bounds: Bounds<Pixels>,
3553 max_height: Pixels,
3554 must_place_above_or_below: bool,
3555 text_hitbox: &Hitbox,
3556 viewport_bounds: Bounds<Pixels>,
3557 window: &mut Window,
3558 cx: &mut App,
3559 ) {
3560 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3561 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3562 && !must_place_above_or_below
3563 {
3564 let max_width = cmp::min(
3565 available_within_viewport.right - px(1.),
3566 MENU_ASIDE_MAX_WIDTH,
3567 );
3568 let Some(mut aside) =
3569 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3570 else {
3571 return;
3572 };
3573 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3574 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3575 Some((aside, right_position))
3576 } else {
3577 let max_size = size(
3578 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3579 // won't be needed here.
3580 cmp::min(
3581 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3582 viewport_bounds.right(),
3583 ),
3584 cmp::min(
3585 max_height,
3586 cmp::max(
3587 available_within_viewport.top,
3588 available_within_viewport.bottom,
3589 ),
3590 ) - POPOVER_Y_PADDING,
3591 );
3592 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3593 return;
3594 };
3595 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3596
3597 let top_position = point(
3598 menu_bounds.origin.x,
3599 target_bounds.top() - actual_size.height,
3600 );
3601 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3602
3603 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3604 // Prefer to fit on the same side of the line as the menu, then on the other side of
3605 // the line.
3606 if !y_flipped && wanted.height < available.bottom {
3607 Some(bottom_position)
3608 } else if !y_flipped && wanted.height < available.top {
3609 Some(top_position)
3610 } else if y_flipped && wanted.height < available.top {
3611 Some(top_position)
3612 } else if y_flipped && wanted.height < available.bottom {
3613 Some(bottom_position)
3614 } else {
3615 None
3616 }
3617 };
3618
3619 // Prefer choosing a direction using max sizes rather than actual size for stability.
3620 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3621 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3622 let aside_position = fit_within(available_within_text, wanted)
3623 // Fallback: fit max size in window.
3624 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3625 // Fallback: fit actual size in window.
3626 .or_else(|| fit_within(available_within_viewport, actual_size));
3627
3628 aside_position.map(|position| (aside, position))
3629 };
3630
3631 // Skip drawing if it doesn't fit anywhere.
3632 if let Some((aside, position)) = positioned_aside {
3633 window.defer_draw(aside, position, 1);
3634 }
3635 }
3636
3637 fn render_context_menu(
3638 &self,
3639 line_height: Pixels,
3640 height: Pixels,
3641 y_flipped: bool,
3642 window: &mut Window,
3643 cx: &mut App,
3644 ) -> Option<AnyElement> {
3645 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3646 self.editor.update(cx, |editor, cx| {
3647 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3648 })
3649 }
3650
3651 fn render_context_menu_aside(
3652 &self,
3653 max_size: Size<Pixels>,
3654
3655 cx: &mut App,
3656 ) -> Option<AnyElement> {
3657 if max_size.width < px(100.) || max_size.height < px(12.) {
3658 None
3659 } else {
3660 self.editor.update(cx, |editor, cx| {
3661 editor.render_context_menu_aside(&self.style, max_size, cx)
3662 })
3663 }
3664 }
3665
3666 #[allow(clippy::too_many_arguments)]
3667 fn layout_inline_completion_popover(
3668 &self,
3669 text_bounds: &Bounds<Pixels>,
3670 editor_snapshot: &EditorSnapshot,
3671 visible_row_range: Range<DisplayRow>,
3672 scroll_top: f32,
3673 scroll_bottom: f32,
3674 line_layouts: &[LineWithInvisibles],
3675 line_height: Pixels,
3676 scroll_pixel_position: gpui::Point<Pixels>,
3677 newest_selection_head: Option<DisplayPoint>,
3678 editor_width: Pixels,
3679 style: &EditorStyle,
3680 window: &mut Window,
3681 cx: &mut App,
3682 ) -> Option<AnyElement> {
3683 const PADDING_X: Pixels = Pixels(24.);
3684 const PADDING_Y: Pixels = Pixels(2.);
3685
3686 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3687
3688 match &active_inline_completion.completion {
3689 InlineCompletion::Move { target, .. } => {
3690 let target_display_point = target.to_display_point(editor_snapshot);
3691 if target_display_point.row().as_f32() < scroll_top {
3692 let mut element = inline_completion_accept_indicator(
3693 "Jump to Edit",
3694 Some(IconName::ArrowUp),
3695 true,
3696 self.editor.focus_handle(cx),
3697 window,
3698 cx,
3699 );
3700 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3701 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3702 element.prepaint_at(text_bounds.origin + offset, window, cx);
3703 Some(element)
3704 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3705 let mut element = inline_completion_accept_indicator(
3706 "Jump to Edit",
3707 Some(IconName::ArrowDown),
3708 true,
3709 self.editor.focus_handle(cx),
3710 window,
3711 cx,
3712 );
3713 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3714 let offset = point(
3715 (text_bounds.size.width - size.width) / 2.,
3716 text_bounds.size.height - size.height - PADDING_Y,
3717 );
3718 element.prepaint_at(text_bounds.origin + offset, window, cx);
3719 Some(element)
3720 } else {
3721 let mut element = inline_completion_accept_indicator(
3722 "Jump to Edit",
3723 None,
3724 true,
3725 self.editor.focus_handle(cx),
3726 window,
3727 cx,
3728 );
3729
3730 let target_line_end = DisplayPoint::new(
3731 target_display_point.row(),
3732 editor_snapshot.line_len(target_display_point.row()),
3733 );
3734 let origin = self.editor.update(cx, |editor, _cx| {
3735 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3736 })?;
3737 element.prepaint_as_root(
3738 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3739 AvailableSpace::min_size(),
3740 window,
3741 cx,
3742 );
3743 Some(element)
3744 }
3745 }
3746 InlineCompletion::Edit {
3747 edits,
3748 edit_preview,
3749 display_mode,
3750 snapshot,
3751 } => {
3752 if self.editor.read(cx).has_active_completions_menu() {
3753 return None;
3754 }
3755
3756 let edit_start = edits
3757 .first()
3758 .unwrap()
3759 .0
3760 .start
3761 .to_display_point(editor_snapshot);
3762 let edit_end = edits
3763 .last()
3764 .unwrap()
3765 .0
3766 .end
3767 .to_display_point(editor_snapshot);
3768
3769 let is_visible = visible_row_range.contains(&edit_start.row())
3770 || visible_row_range.contains(&edit_end.row());
3771 if !is_visible {
3772 return None;
3773 }
3774
3775 match display_mode {
3776 EditDisplayMode::TabAccept(previewing) => {
3777 let previewing = *previewing;
3778 let range = &edits.first()?.0;
3779 let target_display_point = range.end.to_display_point(editor_snapshot);
3780
3781 let target_line_end = DisplayPoint::new(
3782 target_display_point.row(),
3783 editor_snapshot.line_len(target_display_point.row()),
3784 );
3785 let origin = self.editor.update(cx, |editor, _cx| {
3786 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3787 })?;
3788
3789 let mut element = inline_completion_accept_indicator(
3790 "Accept",
3791 None,
3792 !previewing,
3793 self.editor.focus_handle(cx),
3794 window,
3795 cx,
3796 );
3797
3798 element.prepaint_as_root(
3799 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3800 AvailableSpace::min_size(),
3801 window,
3802 cx,
3803 );
3804
3805 return Some(element);
3806 }
3807 EditDisplayMode::Inline => return None,
3808 EditDisplayMode::DiffPopover => {}
3809 }
3810
3811 let highlighted_edits = crate::inline_completion_edit_text(
3812 &snapshot,
3813 edits,
3814 edit_preview.as_ref()?,
3815 false,
3816 cx,
3817 );
3818
3819 let line_count = highlighted_edits.text.lines().count();
3820
3821 let longest_row =
3822 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3823 let longest_line_width = if visible_row_range.contains(&longest_row) {
3824 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3825 } else {
3826 layout_line(
3827 longest_row,
3828 editor_snapshot,
3829 style,
3830 editor_width,
3831 |_| false,
3832 window,
3833 cx,
3834 )
3835 .width
3836 };
3837
3838 let styled_text = highlighted_edits.to_styled_text(&style.text);
3839
3840 let mut element = div()
3841 .bg(cx.theme().colors().editor_background)
3842 .border_1()
3843 .border_color(cx.theme().colors().border)
3844 .rounded_md()
3845 .child(styled_text)
3846 .into_any();
3847
3848 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3849 .extend(Edges {
3850 right: -Self::SCROLLBAR_WIDTH,
3851 ..Default::default()
3852 });
3853
3854 let x_after_longest =
3855 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3856
3857 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3858
3859 // Fully visible if it can be displayed within the window (allow overlapping other
3860 // panes). However, this is only allowed if the popover starts within text_bounds.
3861 let is_fully_visible = x_after_longest < text_bounds.right()
3862 && x_after_longest + element_bounds.width < viewport_bounds.right();
3863
3864 let origin = if is_fully_visible {
3865 point(
3866 x_after_longest,
3867 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3868 - scroll_pixel_position.y,
3869 )
3870 } else {
3871 // Avoid overlapping both the edited rows and the user's cursor.
3872 let target_above = DisplayRow(
3873 edit_start
3874 .row()
3875 .0
3876 .min(
3877 newest_selection_head
3878 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3879 )
3880 .saturating_sub(line_count as u32),
3881 );
3882 let mut row_target;
3883 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3884 row_target = target_above;
3885 } else {
3886 row_target = DisplayRow(
3887 edit_end.row().0.max(
3888 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3889 ) + 1,
3890 );
3891 if !visible_row_range.contains(&row_target) {
3892 // Not visible, so fallback on displaying immediately below the cursor.
3893 if let Some(cursor) = newest_selection_head {
3894 row_target = DisplayRow(cursor.row().0 + 1);
3895 } else {
3896 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3897 row_target = DisplayRow(0);
3898 }
3899 }
3900 };
3901
3902 text_bounds.origin
3903 + point(
3904 -scroll_pixel_position.x,
3905 row_target.as_f32() * line_height - scroll_pixel_position.y,
3906 )
3907 };
3908
3909 window.defer_draw(element, origin, 1);
3910
3911 // Do not return an element, since it will already be drawn due to defer_draw.
3912 None
3913 }
3914 }
3915 }
3916
3917 fn layout_mouse_context_menu(
3918 &self,
3919 editor_snapshot: &EditorSnapshot,
3920 visible_range: Range<DisplayRow>,
3921 content_origin: gpui::Point<Pixels>,
3922 window: &mut Window,
3923 cx: &mut App,
3924 ) -> Option<AnyElement> {
3925 let position = self.editor.update(cx, |editor, _cx| {
3926 let visible_start_point = editor.display_to_pixel_point(
3927 DisplayPoint::new(visible_range.start, 0),
3928 editor_snapshot,
3929 window,
3930 )?;
3931 let visible_end_point = editor.display_to_pixel_point(
3932 DisplayPoint::new(visible_range.end, 0),
3933 editor_snapshot,
3934 window,
3935 )?;
3936
3937 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3938 let (source_display_point, position) = match mouse_context_menu.position {
3939 MenuPosition::PinnedToScreen(point) => (None, point),
3940 MenuPosition::PinnedToEditor { source, offset } => {
3941 let source_display_point = source.to_display_point(editor_snapshot);
3942 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3943 let position = content_origin + source_point + offset;
3944 (Some(source_display_point), position)
3945 }
3946 };
3947
3948 let source_included = source_display_point.map_or(true, |source_display_point| {
3949 visible_range
3950 .to_inclusive()
3951 .contains(&source_display_point.row())
3952 });
3953 let position_included =
3954 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3955 if !source_included && !position_included {
3956 None
3957 } else {
3958 Some(position)
3959 }
3960 })?;
3961
3962 let mut element = self.editor.update(cx, |editor, _| {
3963 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3964 let context_menu = mouse_context_menu.context_menu.clone();
3965
3966 Some(
3967 deferred(
3968 anchored()
3969 .position(position)
3970 .child(context_menu)
3971 .anchor(Corner::TopLeft)
3972 .snap_to_window_with_margin(px(8.)),
3973 )
3974 .with_priority(1)
3975 .into_any(),
3976 )
3977 })?;
3978
3979 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3980 Some(element)
3981 }
3982
3983 #[allow(clippy::too_many_arguments)]
3984 fn layout_hover_popovers(
3985 &self,
3986 snapshot: &EditorSnapshot,
3987 hitbox: &Hitbox,
3988 text_hitbox: &Hitbox,
3989 visible_display_row_range: Range<DisplayRow>,
3990 content_origin: gpui::Point<Pixels>,
3991 scroll_pixel_position: gpui::Point<Pixels>,
3992 line_layouts: &[LineWithInvisibles],
3993 line_height: Pixels,
3994 em_width: Pixels,
3995 window: &mut Window,
3996 cx: &mut App,
3997 ) {
3998 struct MeasuredHoverPopover {
3999 element: AnyElement,
4000 size: Size<Pixels>,
4001 horizontal_offset: Pixels,
4002 }
4003
4004 let max_size = size(
4005 (120. * em_width) // Default size
4006 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4007 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4008 (16. * line_height) // Default size
4009 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4010 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4011 );
4012
4013 let hover_popovers = self.editor.update(cx, |editor, cx| {
4014 editor
4015 .hover_state
4016 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4017 });
4018 let Some((position, hover_popovers)) = hover_popovers else {
4019 return;
4020 };
4021
4022 // This is safe because we check on layout whether the required row is available
4023 let hovered_row_layout =
4024 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4025
4026 // Compute Hovered Point
4027 let x =
4028 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4029 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4030 let hovered_point = content_origin + point(x, y);
4031
4032 let mut overall_height = Pixels::ZERO;
4033 let mut measured_hover_popovers = Vec::new();
4034 for mut hover_popover in hover_popovers {
4035 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4036 let horizontal_offset =
4037 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4038
4039 overall_height += HOVER_POPOVER_GAP + size.height;
4040
4041 measured_hover_popovers.push(MeasuredHoverPopover {
4042 element: hover_popover,
4043 size,
4044 horizontal_offset,
4045 });
4046 }
4047 overall_height += HOVER_POPOVER_GAP;
4048
4049 fn draw_occluder(
4050 width: Pixels,
4051 origin: gpui::Point<Pixels>,
4052 window: &mut Window,
4053 cx: &mut App,
4054 ) {
4055 let mut occlusion = div()
4056 .size_full()
4057 .occlude()
4058 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4059 .into_any_element();
4060 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4061 window.defer_draw(occlusion, origin, 2);
4062 }
4063
4064 if hovered_point.y > overall_height {
4065 // There is enough space above. Render popovers above the hovered point
4066 let mut current_y = hovered_point.y;
4067 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4068 let size = popover.size;
4069 let popover_origin = point(
4070 hovered_point.x + popover.horizontal_offset,
4071 current_y - size.height,
4072 );
4073
4074 window.defer_draw(popover.element, popover_origin, 2);
4075 if position != itertools::Position::Last {
4076 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4077 draw_occluder(size.width, origin, window, cx);
4078 }
4079
4080 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4081 }
4082 } else {
4083 // There is not enough space above. Render popovers below the hovered point
4084 let mut current_y = hovered_point.y + line_height;
4085 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4086 let size = popover.size;
4087 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4088
4089 window.defer_draw(popover.element, popover_origin, 2);
4090 if position != itertools::Position::Last {
4091 let origin = point(popover_origin.x, popover_origin.y + size.height);
4092 draw_occluder(size.width, origin, window, cx);
4093 }
4094
4095 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4096 }
4097 }
4098 }
4099
4100 #[allow(clippy::too_many_arguments)]
4101 fn layout_diff_hunk_controls(
4102 &self,
4103 row_range: Range<DisplayRow>,
4104 row_infos: &[RowInfo],
4105 text_hitbox: &Hitbox,
4106 position_map: &PositionMap,
4107 newest_cursor_position: Option<DisplayPoint>,
4108 line_height: Pixels,
4109 scroll_pixel_position: gpui::Point<Pixels>,
4110 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4111 editor: Entity<Editor>,
4112 window: &mut Window,
4113 cx: &mut App,
4114 ) -> Vec<AnyElement> {
4115 let point_for_position =
4116 position_map.point_for_position(text_hitbox.bounds, window.mouse_position());
4117
4118 let mut controls = vec![];
4119
4120 let active_positions = [
4121 Some(point_for_position.previous_valid),
4122 newest_cursor_position,
4123 ];
4124
4125 for (hunk, _) in display_hunks {
4126 if let DisplayDiffHunk::Unfolded {
4127 display_row_range,
4128 multi_buffer_range,
4129 status,
4130 ..
4131 } = &hunk
4132 {
4133 if display_row_range.start < row_range.start
4134 || display_row_range.start >= row_range.end
4135 {
4136 continue;
4137 }
4138 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4139 if row_infos[row_ix].diff_status.is_none() {
4140 continue;
4141 }
4142 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4143 && *status != DiffHunkStatus::Added
4144 {
4145 continue;
4146 }
4147 if active_positions
4148 .iter()
4149 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4150 {
4151 let y = display_row_range.start.as_f32() * line_height
4152 + text_hitbox.bounds.top()
4153 - scroll_pixel_position.y;
4154 let x = text_hitbox.bounds.right() - px(100.);
4155
4156 let mut element = diff_hunk_controls(
4157 display_row_range.start.0,
4158 multi_buffer_range.clone(),
4159 line_height,
4160 &editor,
4161 cx,
4162 );
4163 element.prepaint_as_root(
4164 gpui::Point::new(x, y),
4165 size(px(100.0), line_height).into(),
4166 window,
4167 cx,
4168 );
4169 controls.push(element);
4170 }
4171 }
4172 }
4173
4174 controls
4175 }
4176
4177 #[allow(clippy::too_many_arguments)]
4178 fn layout_signature_help(
4179 &self,
4180 hitbox: &Hitbox,
4181 content_origin: gpui::Point<Pixels>,
4182 scroll_pixel_position: gpui::Point<Pixels>,
4183 newest_selection_head: Option<DisplayPoint>,
4184 start_row: DisplayRow,
4185 line_layouts: &[LineWithInvisibles],
4186 line_height: Pixels,
4187 em_width: Pixels,
4188 window: &mut Window,
4189 cx: &mut App,
4190 ) {
4191 if !self.editor.focus_handle(cx).is_focused(window) {
4192 return;
4193 }
4194 let Some(newest_selection_head) = newest_selection_head else {
4195 return;
4196 };
4197 let selection_row = newest_selection_head.row();
4198 if selection_row < start_row {
4199 return;
4200 }
4201 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4202 else {
4203 return;
4204 };
4205
4206 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4207 - scroll_pixel_position.x
4208 + content_origin.x;
4209 let start_y =
4210 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4211
4212 let max_size = size(
4213 (120. * em_width) // Default size
4214 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4215 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4216 (16. * line_height) // Default size
4217 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4218 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4219 );
4220
4221 let maybe_element = self.editor.update(cx, |editor, cx| {
4222 if let Some(popover) = editor.signature_help_state.popover_mut() {
4223 let element = popover.render(
4224 &self.style,
4225 max_size,
4226 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4227 cx,
4228 );
4229 Some(element)
4230 } else {
4231 None
4232 }
4233 });
4234 if let Some(mut element) = maybe_element {
4235 let window_size = window.viewport_size();
4236 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4237 let mut point = point(start_x, start_y - size.height);
4238
4239 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4240 if point.x + size.width >= window_size.width {
4241 point.x = window_size.width - size.width;
4242 }
4243
4244 window.defer_draw(element, point, 1)
4245 }
4246 }
4247
4248 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4249 window.paint_layer(layout.hitbox.bounds, |window| {
4250 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4251 let gutter_bg = cx.theme().colors().editor_gutter_background;
4252 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4253 window.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
4254
4255 if let EditorMode::Full = layout.mode {
4256 let mut active_rows = layout.active_rows.iter().peekable();
4257 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4258 let mut end_row = start_row.0;
4259 while active_rows
4260 .peek()
4261 .map_or(false, |(active_row, has_selection)| {
4262 active_row.0 == end_row + 1
4263 && *has_selection == contains_non_empty_selection
4264 })
4265 {
4266 active_rows.next().unwrap();
4267 end_row += 1;
4268 }
4269
4270 if !contains_non_empty_selection {
4271 let highlight_h_range =
4272 match layout.position_map.snapshot.current_line_highlight {
4273 CurrentLineHighlight::Gutter => Some(Range {
4274 start: layout.hitbox.left(),
4275 end: layout.gutter_hitbox.right(),
4276 }),
4277 CurrentLineHighlight::Line => Some(Range {
4278 start: layout.text_hitbox.bounds.left(),
4279 end: layout.text_hitbox.bounds.right(),
4280 }),
4281 CurrentLineHighlight::All => Some(Range {
4282 start: layout.hitbox.left(),
4283 end: layout.hitbox.right(),
4284 }),
4285 CurrentLineHighlight::None => None,
4286 };
4287 if let Some(range) = highlight_h_range {
4288 let active_line_bg = cx.theme().colors().editor_active_line_background;
4289 let bounds = Bounds {
4290 origin: point(
4291 range.start,
4292 layout.hitbox.origin.y
4293 + (start_row.as_f32() - scroll_top)
4294 * layout.position_map.line_height,
4295 ),
4296 size: size(
4297 range.end - range.start,
4298 layout.position_map.line_height
4299 * (end_row - start_row.0 + 1) as f32,
4300 ),
4301 };
4302 window.paint_quad(fill(bounds, active_line_bg));
4303 }
4304 }
4305 }
4306
4307 let mut paint_highlight =
4308 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4309 let origin = point(
4310 layout.hitbox.origin.x,
4311 layout.hitbox.origin.y
4312 + (highlight_row_start.as_f32() - scroll_top)
4313 * layout.position_map.line_height,
4314 );
4315 let size = size(
4316 layout.hitbox.size.width,
4317 layout.position_map.line_height
4318 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4319 );
4320 window.paint_quad(fill(Bounds { origin, size }, color));
4321 };
4322
4323 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4324 for (&new_row, &new_color) in &layout.highlighted_rows {
4325 match &mut current_paint {
4326 Some((current_color, current_range)) => {
4327 let current_color = *current_color;
4328 let new_range_started = current_color != new_color
4329 || current_range.end.next_row() != new_row;
4330 if new_range_started {
4331 paint_highlight(
4332 current_range.start,
4333 current_range.end,
4334 current_color,
4335 );
4336 current_paint = Some((new_color, new_row..new_row));
4337 continue;
4338 } else {
4339 current_range.end = current_range.end.next_row();
4340 }
4341 }
4342 None => current_paint = Some((new_color, new_row..new_row)),
4343 };
4344 }
4345 if let Some((color, range)) = current_paint {
4346 paint_highlight(range.start, range.end, color);
4347 }
4348
4349 let scroll_left =
4350 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4351
4352 for (wrap_position, active) in layout.wrap_guides.iter() {
4353 let x = (layout.text_hitbox.origin.x
4354 + *wrap_position
4355 + layout.position_map.em_width / 2.)
4356 - scroll_left;
4357
4358 let show_scrollbars = {
4359 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4360
4361 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4362 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4363 };
4364
4365 if x < layout.text_hitbox.origin.x
4366 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4367 {
4368 continue;
4369 }
4370
4371 let color = if *active {
4372 cx.theme().colors().editor_active_wrap_guide
4373 } else {
4374 cx.theme().colors().editor_wrap_guide
4375 };
4376 window.paint_quad(fill(
4377 Bounds {
4378 origin: point(x, layout.text_hitbox.origin.y),
4379 size: size(px(1.), layout.text_hitbox.size.height),
4380 },
4381 color,
4382 ));
4383 }
4384 }
4385 })
4386 }
4387
4388 fn paint_indent_guides(
4389 &mut self,
4390 layout: &mut EditorLayout,
4391 window: &mut Window,
4392 cx: &mut App,
4393 ) {
4394 let Some(indent_guides) = &layout.indent_guides else {
4395 return;
4396 };
4397
4398 let faded_color = |color: Hsla, alpha: f32| {
4399 let mut faded = color;
4400 faded.a = alpha;
4401 faded
4402 };
4403
4404 for indent_guide in indent_guides {
4405 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4406 let settings = indent_guide.settings;
4407
4408 // TODO fixed for now, expose them through themes later
4409 const INDENT_AWARE_ALPHA: f32 = 0.2;
4410 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4411 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4412 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4413
4414 let line_color = match (settings.coloring, indent_guide.active) {
4415 (IndentGuideColoring::Disabled, _) => None,
4416 (IndentGuideColoring::Fixed, false) => {
4417 Some(cx.theme().colors().editor_indent_guide)
4418 }
4419 (IndentGuideColoring::Fixed, true) => {
4420 Some(cx.theme().colors().editor_indent_guide_active)
4421 }
4422 (IndentGuideColoring::IndentAware, false) => {
4423 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4424 }
4425 (IndentGuideColoring::IndentAware, true) => {
4426 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4427 }
4428 };
4429
4430 let background_color = match (settings.background_coloring, indent_guide.active) {
4431 (IndentGuideBackgroundColoring::Disabled, _) => None,
4432 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4433 indent_accent_colors,
4434 INDENT_AWARE_BACKGROUND_ALPHA,
4435 )),
4436 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4437 indent_accent_colors,
4438 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4439 )),
4440 };
4441
4442 let requested_line_width = if indent_guide.active {
4443 settings.active_line_width
4444 } else {
4445 settings.line_width
4446 }
4447 .clamp(1, 10);
4448 let mut line_indicator_width = 0.;
4449 if let Some(color) = line_color {
4450 window.paint_quad(fill(
4451 Bounds {
4452 origin: indent_guide.origin,
4453 size: size(px(requested_line_width as f32), indent_guide.length),
4454 },
4455 color,
4456 ));
4457 line_indicator_width = requested_line_width as f32;
4458 }
4459
4460 if let Some(color) = background_color {
4461 let width = indent_guide.single_indent_width - px(line_indicator_width);
4462 window.paint_quad(fill(
4463 Bounds {
4464 origin: point(
4465 indent_guide.origin.x + px(line_indicator_width),
4466 indent_guide.origin.y,
4467 ),
4468 size: size(width, indent_guide.length),
4469 },
4470 color,
4471 ));
4472 }
4473 }
4474 }
4475
4476 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4477 let is_singleton = self.editor.read(cx).is_singleton(cx);
4478
4479 let line_height = layout.position_map.line_height;
4480 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4481
4482 for LineNumberLayout {
4483 shaped_line,
4484 hitbox,
4485 display_row,
4486 } in layout.line_numbers.values()
4487 {
4488 let Some(hitbox) = hitbox else {
4489 continue;
4490 };
4491
4492 let is_active = layout.active_rows.contains_key(&display_row);
4493
4494 let color = if is_active {
4495 cx.theme().colors().editor_active_line_number
4496 } else if !is_singleton && hitbox.is_hovered(window) {
4497 cx.theme().colors().editor_hover_line_number
4498 } else {
4499 cx.theme().colors().editor_line_number
4500 };
4501
4502 let Some(line) = self
4503 .shape_line_number(shaped_line.text.clone(), color, window)
4504 .log_err()
4505 else {
4506 continue;
4507 };
4508 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4509 continue;
4510 };
4511 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4512 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4513 if is_singleton {
4514 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4515 } else {
4516 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4517 }
4518 }
4519 }
4520
4521 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4522 if layout.display_hunks.is_empty() {
4523 return;
4524 }
4525
4526 let line_height = layout.position_map.line_height;
4527 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4528 for (hunk, hitbox) in &layout.display_hunks {
4529 let hunk_to_paint = match hunk {
4530 DisplayDiffHunk::Folded { .. } => {
4531 let hunk_bounds = Self::diff_hunk_bounds(
4532 &layout.position_map.snapshot,
4533 line_height,
4534 layout.gutter_hitbox.bounds,
4535 hunk,
4536 );
4537 Some((
4538 hunk_bounds,
4539 cx.theme().status().modified,
4540 Corners::all(px(0.)),
4541 ))
4542 }
4543 DisplayDiffHunk::Unfolded {
4544 status,
4545 display_row_range,
4546 ..
4547 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4548 DiffHunkStatus::Added => (
4549 hunk_hitbox.bounds,
4550 cx.theme().status().created,
4551 Corners::all(px(0.)),
4552 ),
4553 DiffHunkStatus::Modified => (
4554 hunk_hitbox.bounds,
4555 cx.theme().status().modified,
4556 Corners::all(px(0.)),
4557 ),
4558 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4559 hunk_hitbox.bounds,
4560 cx.theme().status().deleted,
4561 Corners::all(px(0.)),
4562 ),
4563 DiffHunkStatus::Removed => (
4564 Bounds::new(
4565 point(
4566 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4567 hunk_hitbox.origin.y,
4568 ),
4569 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4570 ),
4571 cx.theme().status().deleted,
4572 Corners::all(1. * line_height),
4573 ),
4574 }),
4575 };
4576
4577 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4578 window.paint_quad(quad(
4579 hunk_bounds,
4580 corner_radii,
4581 background_color,
4582 Edges::default(),
4583 transparent_black(),
4584 ));
4585 }
4586 }
4587 });
4588 }
4589
4590 fn diff_hunk_bounds(
4591 snapshot: &EditorSnapshot,
4592 line_height: Pixels,
4593 gutter_bounds: Bounds<Pixels>,
4594 hunk: &DisplayDiffHunk,
4595 ) -> Bounds<Pixels> {
4596 let scroll_position = snapshot.scroll_position();
4597 let scroll_top = scroll_position.y * line_height;
4598 let gutter_strip_width = (0.275 * line_height).floor();
4599
4600 match hunk {
4601 DisplayDiffHunk::Folded { display_row, .. } => {
4602 let start_y = display_row.as_f32() * line_height - scroll_top;
4603 let end_y = start_y + line_height;
4604 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4605 let highlight_size = size(gutter_strip_width, end_y - start_y);
4606 Bounds::new(highlight_origin, highlight_size)
4607 }
4608 DisplayDiffHunk::Unfolded {
4609 display_row_range,
4610 status,
4611 ..
4612 } => {
4613 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4614 let row = display_row_range.start;
4615
4616 let offset = line_height / 2.;
4617 let start_y = row.as_f32() * line_height - offset - scroll_top;
4618 let end_y = start_y + line_height;
4619
4620 let width = (0.35 * line_height).floor();
4621 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4622 let highlight_size = size(width, end_y - start_y);
4623 Bounds::new(highlight_origin, highlight_size)
4624 } else {
4625 let start_row = display_row_range.start;
4626 let end_row = display_row_range.end;
4627 // If we're in a multibuffer, row range span might include an
4628 // excerpt header, so if we were to draw the marker straight away,
4629 // the hunk might include the rows of that header.
4630 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4631 // Instead, we simply check whether the range we're dealing with includes
4632 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4633 let end_row_in_current_excerpt = snapshot
4634 .blocks_in_range(start_row..end_row)
4635 .find_map(|(start_row, block)| {
4636 if matches!(block, Block::ExcerptBoundary { .. }) {
4637 Some(start_row)
4638 } else {
4639 None
4640 }
4641 })
4642 .unwrap_or(end_row);
4643
4644 let start_y = start_row.as_f32() * line_height - scroll_top;
4645 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4646
4647 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4648 let highlight_size = size(gutter_strip_width, end_y - start_y);
4649 Bounds::new(highlight_origin, highlight_size)
4650 }
4651 }
4652 }
4653 }
4654
4655 fn paint_gutter_indicators(
4656 &self,
4657 layout: &mut EditorLayout,
4658 window: &mut Window,
4659 cx: &mut App,
4660 ) {
4661 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4662 window.with_element_namespace("crease_toggles", |window| {
4663 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4664 crease_toggle.paint(window, cx);
4665 }
4666 });
4667
4668 for test_indicator in layout.test_indicators.iter_mut() {
4669 test_indicator.paint(window, cx);
4670 }
4671
4672 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4673 indicator.paint(window, cx);
4674 }
4675 });
4676 }
4677
4678 fn paint_gutter_highlights(
4679 &self,
4680 layout: &mut EditorLayout,
4681 window: &mut Window,
4682 cx: &mut App,
4683 ) {
4684 for (_, hunk_hitbox) in &layout.display_hunks {
4685 if let Some(hunk_hitbox) = hunk_hitbox {
4686 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4687 }
4688 }
4689
4690 let show_git_gutter = layout
4691 .position_map
4692 .snapshot
4693 .show_git_diff_gutter
4694 .unwrap_or_else(|| {
4695 matches!(
4696 ProjectSettings::get_global(cx).git.git_gutter,
4697 Some(GitGutterSetting::TrackedFiles)
4698 )
4699 });
4700 if show_git_gutter {
4701 Self::paint_diff_hunks(layout, window, cx)
4702 }
4703
4704 let highlight_width = 0.275 * layout.position_map.line_height;
4705 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4706 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4707 for (range, color) in &layout.highlighted_gutter_ranges {
4708 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4709 layout.visible_display_row_range.start - DisplayRow(1)
4710 } else {
4711 range.start.row()
4712 };
4713 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4714 layout.visible_display_row_range.end + DisplayRow(1)
4715 } else {
4716 range.end.row()
4717 };
4718
4719 let start_y = layout.gutter_hitbox.top()
4720 + start_row.0 as f32 * layout.position_map.line_height
4721 - layout.position_map.scroll_pixel_position.y;
4722 let end_y = layout.gutter_hitbox.top()
4723 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4724 - layout.position_map.scroll_pixel_position.y;
4725 let bounds = Bounds::from_corners(
4726 point(layout.gutter_hitbox.left(), start_y),
4727 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4728 );
4729 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4730 }
4731 });
4732 }
4733
4734 fn paint_blamed_display_rows(
4735 &self,
4736 layout: &mut EditorLayout,
4737 window: &mut Window,
4738 cx: &mut App,
4739 ) {
4740 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4741 return;
4742 };
4743
4744 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4745 for mut blame_element in blamed_display_rows.into_iter() {
4746 blame_element.paint(window, cx);
4747 }
4748 })
4749 }
4750
4751 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4752 window.with_content_mask(
4753 Some(ContentMask {
4754 bounds: layout.text_hitbox.bounds,
4755 }),
4756 |window| {
4757 let cursor_style = if self
4758 .editor
4759 .read(cx)
4760 .hovered_link_state
4761 .as_ref()
4762 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4763 {
4764 CursorStyle::PointingHand
4765 } else {
4766 CursorStyle::IBeam
4767 };
4768 window.set_cursor_style(cursor_style, &layout.text_hitbox);
4769
4770 let invisible_display_ranges = self.paint_highlights(layout, window);
4771 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4772 self.paint_redactions(layout, window);
4773 self.paint_cursors(layout, window, cx);
4774 self.paint_inline_blame(layout, window, cx);
4775 self.paint_diff_hunk_controls(layout, window, cx);
4776 window.with_element_namespace("crease_trailers", |window| {
4777 for trailer in layout.crease_trailers.iter_mut().flatten() {
4778 trailer.element.paint(window, cx);
4779 }
4780 });
4781 },
4782 )
4783 }
4784
4785 fn paint_highlights(
4786 &mut self,
4787 layout: &mut EditorLayout,
4788 window: &mut Window,
4789 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4790 window.paint_layer(layout.text_hitbox.bounds, |window| {
4791 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4792 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4793 for (range, color) in &layout.highlighted_ranges {
4794 self.paint_highlighted_range(
4795 range.clone(),
4796 *color,
4797 Pixels::ZERO,
4798 line_end_overshoot,
4799 layout,
4800 window,
4801 );
4802 }
4803
4804 let corner_radius = 0.15 * layout.position_map.line_height;
4805
4806 for (player_color, selections) in &layout.selections {
4807 for selection in selections.iter() {
4808 self.paint_highlighted_range(
4809 selection.range.clone(),
4810 player_color.selection,
4811 corner_radius,
4812 corner_radius * 2.,
4813 layout,
4814 window,
4815 );
4816
4817 if selection.is_local && !selection.range.is_empty() {
4818 invisible_display_ranges.push(selection.range.clone());
4819 }
4820 }
4821 }
4822 invisible_display_ranges
4823 })
4824 }
4825
4826 fn paint_lines(
4827 &mut self,
4828 invisible_display_ranges: &[Range<DisplayPoint>],
4829 layout: &mut EditorLayout,
4830 window: &mut Window,
4831 cx: &mut App,
4832 ) {
4833 let whitespace_setting = self
4834 .editor
4835 .read(cx)
4836 .buffer
4837 .read(cx)
4838 .settings_at(0, cx)
4839 .show_whitespaces;
4840
4841 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4842 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4843 line_with_invisibles.draw(
4844 layout,
4845 row,
4846 layout.content_origin,
4847 whitespace_setting,
4848 invisible_display_ranges,
4849 window,
4850 cx,
4851 )
4852 }
4853
4854 for line_element in &mut layout.line_elements {
4855 line_element.paint(window, cx);
4856 }
4857 }
4858
4859 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4860 if layout.redacted_ranges.is_empty() {
4861 return;
4862 }
4863
4864 let line_end_overshoot = layout.line_end_overshoot();
4865
4866 // A softer than perfect black
4867 let redaction_color = gpui::rgb(0x0e1111);
4868
4869 window.paint_layer(layout.text_hitbox.bounds, |window| {
4870 for range in layout.redacted_ranges.iter() {
4871 self.paint_highlighted_range(
4872 range.clone(),
4873 redaction_color.into(),
4874 Pixels::ZERO,
4875 line_end_overshoot,
4876 layout,
4877 window,
4878 );
4879 }
4880 });
4881 }
4882
4883 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4884 for cursor in &mut layout.visible_cursors {
4885 cursor.paint(layout.content_origin, window, cx);
4886 }
4887 }
4888
4889 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4890 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4891
4892 if let Some(scrollbar_layout) = scrollbar_x {
4893 let hitbox = scrollbar_layout.hitbox.clone();
4894 let text_unit_size = scrollbar_layout.text_unit_size;
4895 let visible_range = scrollbar_layout.visible_range.clone();
4896 let thumb_bounds = scrollbar_layout.thumb_bounds();
4897
4898 if scrollbar_layout.visible {
4899 window.paint_layer(hitbox.bounds, |window| {
4900 window.paint_quad(quad(
4901 hitbox.bounds,
4902 Corners::default(),
4903 cx.theme().colors().scrollbar_track_background,
4904 Edges {
4905 top: Pixels::ZERO,
4906 right: Pixels::ZERO,
4907 bottom: Pixels::ZERO,
4908 left: Pixels::ZERO,
4909 },
4910 cx.theme().colors().scrollbar_track_border,
4911 ));
4912
4913 window.paint_quad(quad(
4914 thumb_bounds,
4915 Corners::default(),
4916 cx.theme().colors().scrollbar_thumb_background,
4917 Edges {
4918 top: Pixels::ZERO,
4919 right: Pixels::ZERO,
4920 bottom: Pixels::ZERO,
4921 left: ScrollbarLayout::BORDER_WIDTH,
4922 },
4923 cx.theme().colors().scrollbar_thumb_border,
4924 ));
4925 })
4926 }
4927
4928 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4929
4930 window.on_mouse_event({
4931 let editor = self.editor.clone();
4932
4933 // there may be a way to avoid this clone
4934 let hitbox = hitbox.clone();
4935
4936 let mut mouse_position = window.mouse_position();
4937 move |event: &MouseMoveEvent, phase, window, cx| {
4938 if phase == DispatchPhase::Capture {
4939 return;
4940 }
4941
4942 editor.update(cx, |editor, cx| {
4943 if event.pressed_button == Some(MouseButton::Left)
4944 && editor
4945 .scroll_manager
4946 .is_dragging_scrollbar(Axis::Horizontal)
4947 {
4948 let x = mouse_position.x;
4949 let new_x = event.position.x;
4950 if (hitbox.left()..hitbox.right()).contains(&x) {
4951 let mut position = editor.scroll_position(cx);
4952
4953 position.x += (new_x - x) / text_unit_size;
4954 if position.x < 0.0 {
4955 position.x = 0.0;
4956 }
4957 editor.set_scroll_position(position, window, cx);
4958 }
4959
4960 cx.stop_propagation();
4961 } else {
4962 editor.scroll_manager.set_is_dragging_scrollbar(
4963 Axis::Horizontal,
4964 false,
4965 cx,
4966 );
4967
4968 if hitbox.is_hovered(window) {
4969 editor.scroll_manager.show_scrollbar(window, cx);
4970 }
4971 }
4972 mouse_position = event.position;
4973 })
4974 }
4975 });
4976
4977 if self
4978 .editor
4979 .read(cx)
4980 .scroll_manager
4981 .is_dragging_scrollbar(Axis::Horizontal)
4982 {
4983 window.on_mouse_event({
4984 let editor = self.editor.clone();
4985 move |_: &MouseUpEvent, phase, _, cx| {
4986 if phase == DispatchPhase::Capture {
4987 return;
4988 }
4989
4990 editor.update(cx, |editor, cx| {
4991 editor.scroll_manager.set_is_dragging_scrollbar(
4992 Axis::Horizontal,
4993 false,
4994 cx,
4995 );
4996 cx.stop_propagation();
4997 });
4998 }
4999 });
5000 } else {
5001 window.on_mouse_event({
5002 let editor = self.editor.clone();
5003
5004 move |event: &MouseDownEvent, phase, window, cx| {
5005 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5006 return;
5007 }
5008
5009 editor.update(cx, |editor, cx| {
5010 editor.scroll_manager.set_is_dragging_scrollbar(
5011 Axis::Horizontal,
5012 true,
5013 cx,
5014 );
5015
5016 let x = event.position.x;
5017
5018 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5019 let center_row =
5020 ((x - hitbox.left()) / text_unit_size).round() as u32;
5021 let top_row = center_row.saturating_sub(
5022 (visible_range.end - visible_range.start) as u32 / 2,
5023 );
5024
5025 let mut position = editor.scroll_position(cx);
5026 position.x = top_row as f32;
5027
5028 editor.set_scroll_position(position, window, cx);
5029 } else {
5030 editor.scroll_manager.show_scrollbar(window, cx);
5031 }
5032
5033 cx.stop_propagation();
5034 });
5035 }
5036 });
5037 }
5038 }
5039
5040 if let Some(scrollbar_layout) = scrollbar_y {
5041 let hitbox = scrollbar_layout.hitbox.clone();
5042 let text_unit_size = scrollbar_layout.text_unit_size;
5043 let visible_range = scrollbar_layout.visible_range.clone();
5044 let thumb_bounds = scrollbar_layout.thumb_bounds();
5045
5046 if scrollbar_layout.visible {
5047 window.paint_layer(hitbox.bounds, |window| {
5048 window.paint_quad(quad(
5049 hitbox.bounds,
5050 Corners::default(),
5051 cx.theme().colors().scrollbar_track_background,
5052 Edges {
5053 top: Pixels::ZERO,
5054 right: Pixels::ZERO,
5055 bottom: Pixels::ZERO,
5056 left: ScrollbarLayout::BORDER_WIDTH,
5057 },
5058 cx.theme().colors().scrollbar_track_border,
5059 ));
5060
5061 let fast_markers =
5062 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5063 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5064 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5065
5066 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5067 for marker in markers.iter().chain(&fast_markers) {
5068 let mut marker = marker.clone();
5069 marker.bounds.origin += hitbox.origin;
5070 window.paint_quad(marker);
5071 }
5072
5073 window.paint_quad(quad(
5074 thumb_bounds,
5075 Corners::default(),
5076 cx.theme().colors().scrollbar_thumb_background,
5077 Edges {
5078 top: Pixels::ZERO,
5079 right: Pixels::ZERO,
5080 bottom: Pixels::ZERO,
5081 left: ScrollbarLayout::BORDER_WIDTH,
5082 },
5083 cx.theme().colors().scrollbar_thumb_border,
5084 ));
5085 });
5086 }
5087
5088 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5089
5090 window.on_mouse_event({
5091 let editor = self.editor.clone();
5092
5093 let hitbox = hitbox.clone();
5094
5095 let mut mouse_position = window.mouse_position();
5096 move |event: &MouseMoveEvent, phase, window, cx| {
5097 if phase == DispatchPhase::Capture {
5098 return;
5099 }
5100
5101 editor.update(cx, |editor, cx| {
5102 if event.pressed_button == Some(MouseButton::Left)
5103 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5104 {
5105 let y = mouse_position.y;
5106 let new_y = event.position.y;
5107 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5108 let mut position = editor.scroll_position(cx);
5109 position.y += (new_y - y) / text_unit_size;
5110 if position.y < 0.0 {
5111 position.y = 0.0;
5112 }
5113 editor.set_scroll_position(position, window, cx);
5114 }
5115 } else {
5116 editor.scroll_manager.set_is_dragging_scrollbar(
5117 Axis::Vertical,
5118 false,
5119 cx,
5120 );
5121
5122 if hitbox.is_hovered(window) {
5123 editor.scroll_manager.show_scrollbar(window, cx);
5124 }
5125 }
5126 mouse_position = event.position;
5127 })
5128 }
5129 });
5130
5131 if self
5132 .editor
5133 .read(cx)
5134 .scroll_manager
5135 .is_dragging_scrollbar(Axis::Vertical)
5136 {
5137 window.on_mouse_event({
5138 let editor = self.editor.clone();
5139 move |_: &MouseUpEvent, phase, _, cx| {
5140 if phase == DispatchPhase::Capture {
5141 return;
5142 }
5143
5144 editor.update(cx, |editor, cx| {
5145 editor.scroll_manager.set_is_dragging_scrollbar(
5146 Axis::Vertical,
5147 false,
5148 cx,
5149 );
5150 cx.stop_propagation();
5151 });
5152 }
5153 });
5154 } else {
5155 window.on_mouse_event({
5156 let editor = self.editor.clone();
5157
5158 move |event: &MouseDownEvent, phase, window, cx| {
5159 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5160 return;
5161 }
5162
5163 editor.update(cx, |editor, cx| {
5164 editor.scroll_manager.set_is_dragging_scrollbar(
5165 Axis::Vertical,
5166 true,
5167 cx,
5168 );
5169
5170 let y = event.position.y;
5171 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5172 let center_row =
5173 ((y - hitbox.top()) / text_unit_size).round() as u32;
5174 let top_row = center_row.saturating_sub(
5175 (visible_range.end - visible_range.start) as u32 / 2,
5176 );
5177 let mut position = editor.scroll_position(cx);
5178 position.y = top_row as f32;
5179 editor.set_scroll_position(position, window, cx);
5180 } else {
5181 editor.scroll_manager.show_scrollbar(window, cx);
5182 }
5183
5184 cx.stop_propagation();
5185 });
5186 }
5187 });
5188 }
5189 }
5190 }
5191
5192 fn collect_fast_scrollbar_markers(
5193 &self,
5194 layout: &EditorLayout,
5195 scrollbar_layout: &ScrollbarLayout,
5196 cx: &mut App,
5197 ) -> Vec<PaintQuad> {
5198 const LIMIT: usize = 100;
5199 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5200 return vec![];
5201 }
5202 let cursor_ranges = layout
5203 .cursors
5204 .iter()
5205 .map(|(point, color)| ColoredRange {
5206 start: point.row(),
5207 end: point.row(),
5208 color: *color,
5209 })
5210 .collect_vec();
5211 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5212 }
5213
5214 fn refresh_slow_scrollbar_markers(
5215 &self,
5216 layout: &EditorLayout,
5217 scrollbar_layout: &ScrollbarLayout,
5218 window: &mut Window,
5219 cx: &mut App,
5220 ) {
5221 self.editor.update(cx, |editor, cx| {
5222 if !editor.is_singleton(cx)
5223 || !editor
5224 .scrollbar_marker_state
5225 .should_refresh(scrollbar_layout.hitbox.size)
5226 {
5227 return;
5228 }
5229
5230 let scrollbar_layout = scrollbar_layout.clone();
5231 let background_highlights = editor.background_highlights.clone();
5232 let snapshot = layout.position_map.snapshot.clone();
5233 let theme = cx.theme().clone();
5234 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5235
5236 editor.scrollbar_marker_state.dirty = false;
5237 editor.scrollbar_marker_state.pending_refresh =
5238 Some(cx.spawn_in(window, |editor, mut cx| async move {
5239 let scrollbar_size = scrollbar_layout.hitbox.size;
5240 let scrollbar_markers = cx
5241 .background_executor()
5242 .spawn(async move {
5243 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5244 let mut marker_quads = Vec::new();
5245 if scrollbar_settings.git_diff {
5246 let marker_row_ranges =
5247 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5248 let start_display_row =
5249 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5250 .to_display_point(&snapshot.display_snapshot)
5251 .row();
5252 let mut end_display_row =
5253 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5254 .to_display_point(&snapshot.display_snapshot)
5255 .row();
5256 if end_display_row != start_display_row {
5257 end_display_row.0 -= 1;
5258 }
5259 let color = match &hunk.status() {
5260 DiffHunkStatus::Added => theme.status().created,
5261 DiffHunkStatus::Modified => theme.status().modified,
5262 DiffHunkStatus::Removed => theme.status().deleted,
5263 };
5264 ColoredRange {
5265 start: start_display_row,
5266 end: end_display_row,
5267 color,
5268 }
5269 });
5270
5271 marker_quads.extend(
5272 scrollbar_layout
5273 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5274 );
5275 }
5276
5277 for (background_highlight_id, (_, background_ranges)) in
5278 background_highlights.iter()
5279 {
5280 let is_search_highlights = *background_highlight_id
5281 == TypeId::of::<BufferSearchHighlights>();
5282 let is_symbol_occurrences = *background_highlight_id
5283 == TypeId::of::<DocumentHighlightRead>()
5284 || *background_highlight_id
5285 == TypeId::of::<DocumentHighlightWrite>();
5286 if (is_search_highlights && scrollbar_settings.search_results)
5287 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5288 {
5289 let mut color = theme.status().info;
5290 if is_symbol_occurrences {
5291 color.fade_out(0.5);
5292 }
5293 let marker_row_ranges = background_ranges.iter().map(|range| {
5294 let display_start = range
5295 .start
5296 .to_display_point(&snapshot.display_snapshot);
5297 let display_end =
5298 range.end.to_display_point(&snapshot.display_snapshot);
5299 ColoredRange {
5300 start: display_start.row(),
5301 end: display_end.row(),
5302 color,
5303 }
5304 });
5305 marker_quads.extend(
5306 scrollbar_layout
5307 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5308 );
5309 }
5310 }
5311
5312 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5313 let diagnostics = snapshot
5314 .buffer_snapshot
5315 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
5316 // Don't show diagnostics the user doesn't care about
5317 .filter(|diagnostic| {
5318 match (
5319 scrollbar_settings.diagnostics,
5320 diagnostic.diagnostic.severity,
5321 ) {
5322 (ScrollbarDiagnostics::All, _) => true,
5323 (
5324 ScrollbarDiagnostics::Error,
5325 DiagnosticSeverity::ERROR,
5326 ) => true,
5327 (
5328 ScrollbarDiagnostics::Warning,
5329 DiagnosticSeverity::ERROR
5330 | DiagnosticSeverity::WARNING,
5331 ) => true,
5332 (
5333 ScrollbarDiagnostics::Information,
5334 DiagnosticSeverity::ERROR
5335 | DiagnosticSeverity::WARNING
5336 | DiagnosticSeverity::INFORMATION,
5337 ) => true,
5338 (_, _) => false,
5339 }
5340 })
5341 // We want to sort by severity, in order to paint the most severe diagnostics last.
5342 .sorted_by_key(|diagnostic| {
5343 std::cmp::Reverse(diagnostic.diagnostic.severity)
5344 });
5345
5346 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5347 let start_display = diagnostic
5348 .range
5349 .start
5350 .to_display_point(&snapshot.display_snapshot);
5351 let end_display = diagnostic
5352 .range
5353 .end
5354 .to_display_point(&snapshot.display_snapshot);
5355 let color = match diagnostic.diagnostic.severity {
5356 DiagnosticSeverity::ERROR => theme.status().error,
5357 DiagnosticSeverity::WARNING => theme.status().warning,
5358 DiagnosticSeverity::INFORMATION => theme.status().info,
5359 _ => theme.status().hint,
5360 };
5361 ColoredRange {
5362 start: start_display.row(),
5363 end: end_display.row(),
5364 color,
5365 }
5366 });
5367 marker_quads.extend(
5368 scrollbar_layout
5369 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5370 );
5371 }
5372
5373 Arc::from(marker_quads)
5374 })
5375 .await;
5376
5377 editor.update(&mut cx, |editor, cx| {
5378 editor.scrollbar_marker_state.markers = scrollbar_markers;
5379 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5380 editor.scrollbar_marker_state.pending_refresh = None;
5381 cx.notify();
5382 })?;
5383
5384 Ok(())
5385 }));
5386 });
5387 }
5388
5389 #[allow(clippy::too_many_arguments)]
5390 fn paint_highlighted_range(
5391 &self,
5392 range: Range<DisplayPoint>,
5393 color: Hsla,
5394 corner_radius: Pixels,
5395 line_end_overshoot: Pixels,
5396 layout: &EditorLayout,
5397 window: &mut Window,
5398 ) {
5399 let start_row = layout.visible_display_row_range.start;
5400 let end_row = layout.visible_display_row_range.end;
5401 if range.start != range.end {
5402 let row_range = if range.end.column() == 0 {
5403 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5404 } else {
5405 cmp::max(range.start.row(), start_row)
5406 ..cmp::min(range.end.row().next_row(), end_row)
5407 };
5408
5409 let highlighted_range = HighlightedRange {
5410 color,
5411 line_height: layout.position_map.line_height,
5412 corner_radius,
5413 start_y: layout.content_origin.y
5414 + row_range.start.as_f32() * layout.position_map.line_height
5415 - layout.position_map.scroll_pixel_position.y,
5416 lines: row_range
5417 .iter_rows()
5418 .map(|row| {
5419 let line_layout =
5420 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5421 HighlightedRangeLine {
5422 start_x: if row == range.start.row() {
5423 layout.content_origin.x
5424 + line_layout.x_for_index(range.start.column() as usize)
5425 - layout.position_map.scroll_pixel_position.x
5426 } else {
5427 layout.content_origin.x
5428 - layout.position_map.scroll_pixel_position.x
5429 },
5430 end_x: if row == range.end.row() {
5431 layout.content_origin.x
5432 + line_layout.x_for_index(range.end.column() as usize)
5433 - layout.position_map.scroll_pixel_position.x
5434 } else {
5435 layout.content_origin.x + line_layout.width + line_end_overshoot
5436 - layout.position_map.scroll_pixel_position.x
5437 },
5438 }
5439 })
5440 .collect(),
5441 };
5442
5443 highlighted_range.paint(layout.text_hitbox.bounds, window);
5444 }
5445 }
5446
5447 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5448 if let Some(mut inline_blame) = layout.inline_blame.take() {
5449 window.paint_layer(layout.text_hitbox.bounds, |window| {
5450 inline_blame.paint(window, cx);
5451 })
5452 }
5453 }
5454
5455 fn paint_diff_hunk_controls(
5456 &mut self,
5457 layout: &mut EditorLayout,
5458 window: &mut Window,
5459 cx: &mut App,
5460 ) {
5461 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5462 diff_hunk_control.paint(window, cx);
5463 }
5464 }
5465
5466 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5467 for mut block in layout.blocks.drain(..) {
5468 block.element.paint(window, cx);
5469 }
5470 }
5471
5472 fn paint_inline_completion_popover(
5473 &mut self,
5474 layout: &mut EditorLayout,
5475 window: &mut Window,
5476 cx: &mut App,
5477 ) {
5478 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5479 inline_completion_popover.paint(window, cx);
5480 }
5481 }
5482
5483 fn paint_mouse_context_menu(
5484 &mut self,
5485 layout: &mut EditorLayout,
5486 window: &mut Window,
5487 cx: &mut App,
5488 ) {
5489 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5490 mouse_context_menu.paint(window, cx);
5491 }
5492 }
5493
5494 fn paint_scroll_wheel_listener(
5495 &mut self,
5496 layout: &EditorLayout,
5497 window: &mut Window,
5498 cx: &mut App,
5499 ) {
5500 window.on_mouse_event({
5501 let position_map = layout.position_map.clone();
5502 let editor = self.editor.clone();
5503 let hitbox = layout.hitbox.clone();
5504 let mut delta = ScrollDelta::default();
5505
5506 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5507 // accidentally turn off their scrolling.
5508 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5509
5510 move |event: &ScrollWheelEvent, phase, window, cx| {
5511 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5512 delta = delta.coalesce(event.delta);
5513 editor.update(cx, |editor, cx| {
5514 let position_map: &PositionMap = &position_map;
5515
5516 let line_height = position_map.line_height;
5517 let max_glyph_width = position_map.em_width;
5518 let (delta, axis) = match delta {
5519 gpui::ScrollDelta::Pixels(mut pixels) => {
5520 //Trackpad
5521 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5522 (pixels, axis)
5523 }
5524
5525 gpui::ScrollDelta::Lines(lines) => {
5526 //Not trackpad
5527 let pixels =
5528 point(lines.x * max_glyph_width, lines.y * line_height);
5529 (pixels, None)
5530 }
5531 };
5532
5533 let current_scroll_position = position_map.snapshot.scroll_position();
5534 let x = (current_scroll_position.x * max_glyph_width
5535 - (delta.x * scroll_sensitivity))
5536 / max_glyph_width;
5537 let y = (current_scroll_position.y * line_height
5538 - (delta.y * scroll_sensitivity))
5539 / line_height;
5540 let mut scroll_position =
5541 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5542 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5543 if forbid_vertical_scroll {
5544 scroll_position.y = current_scroll_position.y;
5545 }
5546
5547 if scroll_position != current_scroll_position {
5548 editor.scroll(scroll_position, axis, window, cx);
5549 cx.stop_propagation();
5550 } else if y < 0. {
5551 // Due to clamping, we may fail to detect cases of overscroll to the top;
5552 // We want the scroll manager to get an update in such cases and detect the change of direction
5553 // on the next frame.
5554 cx.notify();
5555 }
5556 });
5557 }
5558 }
5559 });
5560 }
5561
5562 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5563 self.paint_scroll_wheel_listener(layout, window, cx);
5564
5565 window.on_mouse_event({
5566 let position_map = layout.position_map.clone();
5567 let editor = self.editor.clone();
5568 let text_hitbox = layout.text_hitbox.clone();
5569 let gutter_hitbox = layout.gutter_hitbox.clone();
5570 let multi_buffer_range =
5571 layout
5572 .display_hunks
5573 .iter()
5574 .find_map(|(hunk, hunk_hitbox)| match hunk {
5575 DisplayDiffHunk::Folded { .. } => None,
5576 DisplayDiffHunk::Unfolded {
5577 multi_buffer_range, ..
5578 } => {
5579 if hunk_hitbox
5580 .as_ref()
5581 .map(|hitbox| hitbox.is_hovered(window))
5582 .unwrap_or(false)
5583 {
5584 Some(multi_buffer_range.clone())
5585 } else {
5586 None
5587 }
5588 }
5589 });
5590 let line_numbers = layout.line_numbers.clone();
5591
5592 move |event: &MouseDownEvent, phase, window, cx| {
5593 if phase == DispatchPhase::Bubble {
5594 match event.button {
5595 MouseButton::Left => editor.update(cx, |editor, cx| {
5596 let pending_mouse_down = editor
5597 .pending_mouse_down
5598 .get_or_insert_with(Default::default)
5599 .clone();
5600
5601 *pending_mouse_down.borrow_mut() = Some(event.clone());
5602
5603 Self::mouse_left_down(
5604 editor,
5605 event,
5606 multi_buffer_range.clone(),
5607 &position_map,
5608 &text_hitbox,
5609 &gutter_hitbox,
5610 line_numbers.as_ref(),
5611 window,
5612 cx,
5613 );
5614 }),
5615 MouseButton::Right => editor.update(cx, |editor, cx| {
5616 Self::mouse_right_down(
5617 editor,
5618 event,
5619 &position_map,
5620 &text_hitbox,
5621 window,
5622 cx,
5623 );
5624 }),
5625 MouseButton::Middle => editor.update(cx, |editor, cx| {
5626 Self::mouse_middle_down(
5627 editor,
5628 event,
5629 &position_map,
5630 &text_hitbox,
5631 window,
5632 cx,
5633 );
5634 }),
5635 _ => {}
5636 };
5637 }
5638 }
5639 });
5640
5641 window.on_mouse_event({
5642 let editor = self.editor.clone();
5643 let position_map = layout.position_map.clone();
5644 let text_hitbox = layout.text_hitbox.clone();
5645
5646 move |event: &MouseUpEvent, phase, window, cx| {
5647 if phase == DispatchPhase::Bubble {
5648 editor.update(cx, |editor, cx| {
5649 Self::mouse_up(editor, event, &position_map, &text_hitbox, window, cx)
5650 });
5651 }
5652 }
5653 });
5654
5655 window.on_mouse_event({
5656 let editor = self.editor.clone();
5657 let position_map = layout.position_map.clone();
5658 let text_hitbox = layout.text_hitbox.clone();
5659
5660 let mut captured_mouse_down = None;
5661
5662 move |event: &MouseUpEvent, phase, window, cx| match phase {
5663 // Clear the pending mouse down during the capture phase,
5664 // so that it happens even if another event handler stops
5665 // propagation.
5666 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5667 let pending_mouse_down = editor
5668 .pending_mouse_down
5669 .get_or_insert_with(Default::default)
5670 .clone();
5671
5672 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5673 if pending_mouse_down.is_some() && text_hitbox.is_hovered(window) {
5674 captured_mouse_down = pending_mouse_down.take();
5675 window.refresh();
5676 }
5677 }),
5678 // Fire click handlers during the bubble phase.
5679 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5680 if let Some(mouse_down) = captured_mouse_down.take() {
5681 let event = ClickEvent {
5682 down: mouse_down,
5683 up: event.clone(),
5684 };
5685 Self::click(editor, &event, &position_map, &text_hitbox, window, cx);
5686 }
5687 }),
5688 }
5689 });
5690
5691 window.on_mouse_event({
5692 let position_map = layout.position_map.clone();
5693 let editor = self.editor.clone();
5694 let text_hitbox = layout.text_hitbox.clone();
5695 let gutter_hitbox = layout.gutter_hitbox.clone();
5696
5697 move |event: &MouseMoveEvent, phase, window, cx| {
5698 if phase == DispatchPhase::Bubble {
5699 editor.update(cx, |editor, cx| {
5700 if editor.hover_state.focused(window, cx) {
5701 return;
5702 }
5703 if event.pressed_button == Some(MouseButton::Left)
5704 || event.pressed_button == Some(MouseButton::Middle)
5705 {
5706 Self::mouse_dragged(
5707 editor,
5708 event,
5709 &position_map,
5710 text_hitbox.bounds,
5711 window,
5712 cx,
5713 )
5714 }
5715
5716 Self::mouse_moved(
5717 editor,
5718 event,
5719 &position_map,
5720 &text_hitbox,
5721 &gutter_hitbox,
5722 window,
5723 cx,
5724 )
5725 });
5726 }
5727 }
5728 });
5729 }
5730
5731 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5732 bounds.top_right().x - self.style.scrollbar_width
5733 }
5734
5735 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5736 let style = &self.style;
5737 let font_size = style.text.font_size.to_pixels(window.rem_size());
5738 let layout = window
5739 .text_system()
5740 .shape_line(
5741 SharedString::from(" ".repeat(column)),
5742 font_size,
5743 &[TextRun {
5744 len: column,
5745 font: style.text.font(),
5746 color: Hsla::default(),
5747 background_color: None,
5748 underline: None,
5749 strikethrough: None,
5750 }],
5751 )
5752 .unwrap();
5753
5754 layout.width
5755 }
5756
5757 fn max_line_number_width(
5758 &self,
5759 snapshot: &EditorSnapshot,
5760 window: &mut Window,
5761 cx: &mut App,
5762 ) -> Pixels {
5763 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5764 self.column_pixels(digit_count, window, cx)
5765 }
5766
5767 fn shape_line_number(
5768 &self,
5769 text: SharedString,
5770 color: Hsla,
5771 window: &mut Window,
5772 ) -> anyhow::Result<ShapedLine> {
5773 let run = TextRun {
5774 len: text.len(),
5775 font: self.style.text.font(),
5776 color,
5777 background_color: None,
5778 underline: None,
5779 strikethrough: None,
5780 };
5781 window.text_system().shape_line(
5782 text,
5783 self.style.text.font_size.to_pixels(window.rem_size()),
5784 &[run],
5785 )
5786 }
5787}
5788
5789fn header_jump_data(
5790 snapshot: &EditorSnapshot,
5791 block_row_start: DisplayRow,
5792 height: u32,
5793 for_excerpt: &ExcerptInfo,
5794) -> JumpData {
5795 let range = &for_excerpt.range;
5796 let buffer = &for_excerpt.buffer;
5797 let jump_anchor = range
5798 .primary
5799 .as_ref()
5800 .map_or(range.context.start, |primary| primary.start);
5801
5802 let excerpt_start = range.context.start;
5803 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5804 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5805 0
5806 } else {
5807 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5808 jump_position.row.saturating_sub(excerpt_start_point.row)
5809 };
5810
5811 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5812 .saturating_sub(
5813 snapshot
5814 .scroll_anchor
5815 .scroll_position(&snapshot.display_snapshot)
5816 .y as u32,
5817 );
5818
5819 JumpData::MultiBufferPoint {
5820 excerpt_id: for_excerpt.id,
5821 anchor: jump_anchor,
5822 position: jump_position,
5823 line_offset_from_top,
5824 }
5825}
5826
5827fn inline_completion_accept_indicator(
5828 label: impl Into<SharedString>,
5829 icon: Option<IconName>,
5830 show_modifiers: bool,
5831 focus_handle: FocusHandle,
5832 window: &Window,
5833 cx: &App,
5834) -> AnyElement {
5835 let bindings = window.bindings_for_action_in(&crate::AcceptInlineCompletion, &focus_handle);
5836 let Some(accept_keystroke) = bindings
5837 .last()
5838 .and_then(|binding| binding.keystrokes().first())
5839 else {
5840 return div().into_any();
5841 };
5842
5843 let accept_key = h_flex()
5844 .px_0p5()
5845 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5846 .text_size(TextSize::XSmall.rems(cx))
5847 .text_color(cx.theme().colors().text)
5848 .gap_1()
5849 .when(show_modifiers, |parent| {
5850 parent.children(ui::render_modifiers(
5851 &accept_keystroke.modifiers,
5852 PlatformStyle::platform(),
5853 Some(Color::Default),
5854 ))
5855 })
5856 .child(accept_keystroke.key.clone());
5857
5858 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5859
5860 h_flex()
5861 .py_0p5()
5862 .pl_1()
5863 .pr(padding_right)
5864 .gap_1()
5865 .bg(cx.theme().colors().text_accent.opacity(0.15))
5866 .border_1()
5867 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5868 .rounded_md()
5869 .shadow_sm()
5870 .child(accept_key)
5871 .child(Label::new(label).size(LabelSize::Small))
5872 .when_some(icon, |element, icon| {
5873 element.child(
5874 div()
5875 .mt(px(1.5))
5876 .child(Icon::new(icon).size(IconSize::Small)),
5877 )
5878 })
5879 .into_any()
5880}
5881
5882#[allow(clippy::too_many_arguments)]
5883fn prepaint_gutter_button(
5884 button: IconButton,
5885 row: DisplayRow,
5886 line_height: Pixels,
5887 gutter_dimensions: &GutterDimensions,
5888 scroll_pixel_position: gpui::Point<Pixels>,
5889 gutter_hitbox: &Hitbox,
5890 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5891 window: &mut Window,
5892 cx: &mut App,
5893) -> AnyElement {
5894 let mut button = button.into_any_element();
5895 let available_space = size(
5896 AvailableSpace::MinContent,
5897 AvailableSpace::Definite(line_height),
5898 );
5899 let indicator_size = button.layout_as_root(available_space, window, cx);
5900
5901 let blame_width = gutter_dimensions.git_blame_entries_width;
5902 let gutter_width = rows_with_hunk_bounds
5903 .get(&row)
5904 .map(|bounds| bounds.size.width);
5905 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5906
5907 let mut x = left_offset;
5908 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5909 - indicator_size.width
5910 - left_offset;
5911 x += available_width / 2.;
5912
5913 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5914 y += (line_height - indicator_size.height) / 2.;
5915
5916 button.prepaint_as_root(
5917 gutter_hitbox.origin + point(x, y),
5918 available_space,
5919 window,
5920 cx,
5921 );
5922 button
5923}
5924
5925fn render_inline_blame_entry(
5926 blame: &gpui::Entity<GitBlame>,
5927 blame_entry: BlameEntry,
5928 style: &EditorStyle,
5929 workspace: Option<WeakEntity<Workspace>>,
5930 cx: &mut App,
5931) -> AnyElement {
5932 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5933
5934 let author = blame_entry.author.as_deref().unwrap_or_default();
5935 let summary_enabled = ProjectSettings::get_global(cx)
5936 .git
5937 .show_inline_commit_summary();
5938
5939 let text = match blame_entry.summary.as_ref() {
5940 Some(summary) if summary_enabled => {
5941 format!("{}, {} - {}", author, relative_timestamp, summary)
5942 }
5943 _ => format!("{}, {}", author, relative_timestamp),
5944 };
5945
5946 let details = blame.read(cx).details_for_entry(&blame_entry);
5947
5948 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5949
5950 h_flex()
5951 .id("inline-blame")
5952 .w_full()
5953 .font_family(style.text.font().family)
5954 .text_color(cx.theme().status().hint)
5955 .line_height(style.text.line_height)
5956 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5957 .child(text)
5958 .gap_2()
5959 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5960 .into_any()
5961}
5962
5963fn render_blame_entry(
5964 ix: usize,
5965 blame: &gpui::Entity<GitBlame>,
5966 blame_entry: BlameEntry,
5967 style: &EditorStyle,
5968 last_used_color: &mut Option<(PlayerColor, Oid)>,
5969 editor: Entity<Editor>,
5970 cx: &mut App,
5971) -> AnyElement {
5972 let mut sha_color = cx
5973 .theme()
5974 .players()
5975 .color_for_participant(blame_entry.sha.into());
5976 // If the last color we used is the same as the one we get for this line, but
5977 // the commit SHAs are different, then we try again to get a different color.
5978 match *last_used_color {
5979 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5980 let index: u32 = blame_entry.sha.into();
5981 sha_color = cx.theme().players().color_for_participant(index + 1);
5982 }
5983 _ => {}
5984 };
5985 last_used_color.replace((sha_color, blame_entry.sha));
5986
5987 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5988
5989 let short_commit_id = blame_entry.sha.display_short();
5990
5991 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5992 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5993
5994 let details = blame.read(cx).details_for_entry(&blame_entry);
5995
5996 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5997
5998 let tooltip =
5999 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
6000
6001 h_flex()
6002 .w_full()
6003 .justify_between()
6004 .font_family(style.text.font().family)
6005 .line_height(style.text.line_height)
6006 .id(("blame", ix))
6007 .text_color(cx.theme().status().hint)
6008 .pr_2()
6009 .gap_2()
6010 .child(
6011 h_flex()
6012 .items_center()
6013 .gap_2()
6014 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6015 .child(name),
6016 )
6017 .child(relative_timestamp)
6018 .on_mouse_down(MouseButton::Right, {
6019 let blame_entry = blame_entry.clone();
6020 let details = details.clone();
6021 move |event, window, cx| {
6022 deploy_blame_entry_context_menu(
6023 &blame_entry,
6024 details.as_ref(),
6025 editor.clone(),
6026 event.position,
6027 window,
6028 cx,
6029 );
6030 }
6031 })
6032 .hover(|style| style.bg(cx.theme().colors().element_hover))
6033 .when_some(
6034 details.and_then(|details| details.permalink),
6035 |this, url| {
6036 let url = url.clone();
6037 this.cursor_pointer().on_click(move |_, _, cx| {
6038 cx.stop_propagation();
6039 cx.open_url(url.as_str())
6040 })
6041 },
6042 )
6043 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6044 .into_any()
6045}
6046
6047fn deploy_blame_entry_context_menu(
6048 blame_entry: &BlameEntry,
6049 details: Option<&CommitDetails>,
6050 editor: Entity<Editor>,
6051 position: gpui::Point<Pixels>,
6052 window: &mut Window,
6053 cx: &mut App,
6054) {
6055 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6056 let sha = format!("{}", blame_entry.sha);
6057 menu.on_blur_subscription(Subscription::new(|| {}))
6058 .entry("Copy commit SHA", None, move |_, cx| {
6059 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6060 })
6061 .when_some(
6062 details.and_then(|details| details.permalink.clone()),
6063 |this, url| {
6064 this.entry("Open permalink", None, move |_, cx| {
6065 cx.open_url(url.as_str())
6066 })
6067 },
6068 )
6069 });
6070
6071 editor.update(cx, move |editor, cx| {
6072 editor.mouse_context_menu = Some(MouseContextMenu::new(
6073 MenuPosition::PinnedToScreen(position),
6074 context_menu,
6075 window,
6076 cx,
6077 ));
6078 cx.notify();
6079 });
6080}
6081
6082#[derive(Debug)]
6083pub(crate) struct LineWithInvisibles {
6084 fragments: SmallVec<[LineFragment; 1]>,
6085 invisibles: Vec<Invisible>,
6086 len: usize,
6087 width: Pixels,
6088 font_size: Pixels,
6089}
6090
6091#[allow(clippy::large_enum_variant)]
6092enum LineFragment {
6093 Text(ShapedLine),
6094 Element {
6095 element: Option<AnyElement>,
6096 size: Size<Pixels>,
6097 len: usize,
6098 },
6099}
6100
6101impl fmt::Debug for LineFragment {
6102 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6103 match self {
6104 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6105 LineFragment::Element { size, len, .. } => f
6106 .debug_struct("Element")
6107 .field("size", size)
6108 .field("len", len)
6109 .finish(),
6110 }
6111 }
6112}
6113
6114impl LineWithInvisibles {
6115 #[allow(clippy::too_many_arguments)]
6116 fn from_chunks<'a>(
6117 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6118 editor_style: &EditorStyle,
6119 max_line_len: usize,
6120 max_line_count: usize,
6121 editor_mode: EditorMode,
6122 text_width: Pixels,
6123 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6124 window: &mut Window,
6125 cx: &mut App,
6126 ) -> Vec<Self> {
6127 let text_style = &editor_style.text;
6128 let mut layouts = Vec::with_capacity(max_line_count);
6129 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6130 let mut line = String::new();
6131 let mut invisibles = Vec::new();
6132 let mut width = Pixels::ZERO;
6133 let mut len = 0;
6134 let mut styles = Vec::new();
6135 let mut non_whitespace_added = false;
6136 let mut row = 0;
6137 let mut line_exceeded_max_len = false;
6138 let font_size = text_style.font_size.to_pixels(window.rem_size());
6139
6140 let ellipsis = SharedString::from("⋯");
6141
6142 for highlighted_chunk in chunks.chain([HighlightedChunk {
6143 text: "\n",
6144 style: None,
6145 is_tab: false,
6146 replacement: None,
6147 }]) {
6148 if let Some(replacement) = highlighted_chunk.replacement {
6149 if !line.is_empty() {
6150 let shaped_line = window
6151 .text_system()
6152 .shape_line(line.clone().into(), font_size, &styles)
6153 .unwrap();
6154 width += shaped_line.width;
6155 len += shaped_line.len;
6156 fragments.push(LineFragment::Text(shaped_line));
6157 line.clear();
6158 styles.clear();
6159 }
6160
6161 match replacement {
6162 ChunkReplacement::Renderer(renderer) => {
6163 let available_width = if renderer.constrain_width {
6164 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6165 ellipsis.clone()
6166 } else {
6167 SharedString::from(Arc::from(highlighted_chunk.text))
6168 };
6169 let shaped_line = window
6170 .text_system()
6171 .shape_line(
6172 chunk,
6173 font_size,
6174 &[text_style.to_run(highlighted_chunk.text.len())],
6175 )
6176 .unwrap();
6177 AvailableSpace::Definite(shaped_line.width)
6178 } else {
6179 AvailableSpace::MinContent
6180 };
6181
6182 let mut element = (renderer.render)(&mut ChunkRendererContext {
6183 context: cx,
6184 window,
6185 max_width: text_width,
6186 });
6187 let line_height = text_style.line_height_in_pixels(window.rem_size());
6188 let size = element.layout_as_root(
6189 size(available_width, AvailableSpace::Definite(line_height)),
6190 window,
6191 cx,
6192 );
6193
6194 width += size.width;
6195 len += highlighted_chunk.text.len();
6196 fragments.push(LineFragment::Element {
6197 element: Some(element),
6198 size,
6199 len: highlighted_chunk.text.len(),
6200 });
6201 }
6202 ChunkReplacement::Str(x) => {
6203 let text_style = if let Some(style) = highlighted_chunk.style {
6204 Cow::Owned(text_style.clone().highlight(style))
6205 } else {
6206 Cow::Borrowed(text_style)
6207 };
6208
6209 let run = TextRun {
6210 len: x.len(),
6211 font: text_style.font(),
6212 color: text_style.color,
6213 background_color: text_style.background_color,
6214 underline: text_style.underline,
6215 strikethrough: text_style.strikethrough,
6216 };
6217 let line_layout = window
6218 .text_system()
6219 .shape_line(x, font_size, &[run])
6220 .unwrap()
6221 .with_len(highlighted_chunk.text.len());
6222
6223 width += line_layout.width;
6224 len += highlighted_chunk.text.len();
6225 fragments.push(LineFragment::Text(line_layout))
6226 }
6227 }
6228 } else {
6229 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6230 if ix > 0 {
6231 let shaped_line = window
6232 .text_system()
6233 .shape_line(line.clone().into(), font_size, &styles)
6234 .unwrap();
6235 width += shaped_line.width;
6236 len += shaped_line.len;
6237 fragments.push(LineFragment::Text(shaped_line));
6238 layouts.push(Self {
6239 width: mem::take(&mut width),
6240 len: mem::take(&mut len),
6241 fragments: mem::take(&mut fragments),
6242 invisibles: std::mem::take(&mut invisibles),
6243 font_size,
6244 });
6245
6246 line.clear();
6247 styles.clear();
6248 row += 1;
6249 line_exceeded_max_len = false;
6250 non_whitespace_added = false;
6251 if row == max_line_count {
6252 return layouts;
6253 }
6254 }
6255
6256 if !line_chunk.is_empty() && !line_exceeded_max_len {
6257 let text_style = if let Some(style) = highlighted_chunk.style {
6258 Cow::Owned(text_style.clone().highlight(style))
6259 } else {
6260 Cow::Borrowed(text_style)
6261 };
6262
6263 if line.len() + line_chunk.len() > max_line_len {
6264 let mut chunk_len = max_line_len - line.len();
6265 while !line_chunk.is_char_boundary(chunk_len) {
6266 chunk_len -= 1;
6267 }
6268 line_chunk = &line_chunk[..chunk_len];
6269 line_exceeded_max_len = true;
6270 }
6271
6272 styles.push(TextRun {
6273 len: line_chunk.len(),
6274 font: text_style.font(),
6275 color: text_style.color,
6276 background_color: text_style.background_color,
6277 underline: text_style.underline,
6278 strikethrough: text_style.strikethrough,
6279 });
6280
6281 if editor_mode == EditorMode::Full {
6282 // Line wrap pads its contents with fake whitespaces,
6283 // avoid printing them
6284 let is_soft_wrapped = is_row_soft_wrapped(row);
6285 if highlighted_chunk.is_tab {
6286 if non_whitespace_added || !is_soft_wrapped {
6287 invisibles.push(Invisible::Tab {
6288 line_start_offset: line.len(),
6289 line_end_offset: line.len() + line_chunk.len(),
6290 });
6291 }
6292 } else {
6293 invisibles.extend(line_chunk.char_indices().filter_map(
6294 |(index, c)| {
6295 let is_whitespace = c.is_whitespace();
6296 non_whitespace_added |= !is_whitespace;
6297 if is_whitespace
6298 && (non_whitespace_added || !is_soft_wrapped)
6299 {
6300 Some(Invisible::Whitespace {
6301 line_offset: line.len() + index,
6302 })
6303 } else {
6304 None
6305 }
6306 },
6307 ))
6308 }
6309 }
6310
6311 line.push_str(line_chunk);
6312 }
6313 }
6314 }
6315 }
6316
6317 layouts
6318 }
6319
6320 #[allow(clippy::too_many_arguments)]
6321 fn prepaint(
6322 &mut self,
6323 line_height: Pixels,
6324 scroll_pixel_position: gpui::Point<Pixels>,
6325 row: DisplayRow,
6326 content_origin: gpui::Point<Pixels>,
6327 line_elements: &mut SmallVec<[AnyElement; 1]>,
6328 window: &mut Window,
6329 cx: &mut App,
6330 ) {
6331 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6332 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6333 for fragment in &mut self.fragments {
6334 match fragment {
6335 LineFragment::Text(line) => {
6336 fragment_origin.x += line.width;
6337 }
6338 LineFragment::Element { element, size, .. } => {
6339 let mut element = element
6340 .take()
6341 .expect("you can't prepaint LineWithInvisibles twice");
6342
6343 // Center the element vertically within the line.
6344 let mut element_origin = fragment_origin;
6345 element_origin.y += (line_height - size.height) / 2.;
6346 element.prepaint_at(element_origin, window, cx);
6347 line_elements.push(element);
6348
6349 fragment_origin.x += size.width;
6350 }
6351 }
6352 }
6353 }
6354
6355 #[allow(clippy::too_many_arguments)]
6356 fn draw(
6357 &self,
6358 layout: &EditorLayout,
6359 row: DisplayRow,
6360 content_origin: gpui::Point<Pixels>,
6361 whitespace_setting: ShowWhitespaceSetting,
6362 selection_ranges: &[Range<DisplayPoint>],
6363 window: &mut Window,
6364 cx: &mut App,
6365 ) {
6366 let line_height = layout.position_map.line_height;
6367 let line_y = line_height
6368 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6369
6370 let mut fragment_origin =
6371 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6372
6373 for fragment in &self.fragments {
6374 match fragment {
6375 LineFragment::Text(line) => {
6376 line.paint(fragment_origin, line_height, window, cx)
6377 .log_err();
6378 fragment_origin.x += line.width;
6379 }
6380 LineFragment::Element { size, .. } => {
6381 fragment_origin.x += size.width;
6382 }
6383 }
6384 }
6385
6386 self.draw_invisibles(
6387 selection_ranges,
6388 layout,
6389 content_origin,
6390 line_y,
6391 row,
6392 line_height,
6393 whitespace_setting,
6394 window,
6395 cx,
6396 );
6397 }
6398
6399 #[allow(clippy::too_many_arguments)]
6400 fn draw_invisibles(
6401 &self,
6402 selection_ranges: &[Range<DisplayPoint>],
6403 layout: &EditorLayout,
6404 content_origin: gpui::Point<Pixels>,
6405 line_y: Pixels,
6406 row: DisplayRow,
6407 line_height: Pixels,
6408 whitespace_setting: ShowWhitespaceSetting,
6409 window: &mut Window,
6410 cx: &mut App,
6411 ) {
6412 let extract_whitespace_info = |invisible: &Invisible| {
6413 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6414 Invisible::Tab {
6415 line_start_offset,
6416 line_end_offset,
6417 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6418 Invisible::Whitespace { line_offset } => {
6419 (*line_offset, line_offset + 1, &layout.space_invisible)
6420 }
6421 };
6422
6423 let x_offset = self.x_for_index(token_offset);
6424 let invisible_offset =
6425 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6426 let origin = content_origin
6427 + gpui::point(
6428 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6429 line_y,
6430 );
6431
6432 (
6433 [token_offset, token_end_offset],
6434 Box::new(move |window: &mut Window, cx: &mut App| {
6435 invisible_symbol
6436 .paint(origin, line_height, window, cx)
6437 .log_err();
6438 }),
6439 )
6440 };
6441
6442 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6443 match whitespace_setting {
6444 ShowWhitespaceSetting::None => (),
6445 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6446 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6447 let invisible_point = DisplayPoint::new(row, start as u32);
6448 if !selection_ranges
6449 .iter()
6450 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6451 {
6452 return;
6453 }
6454
6455 paint(window, cx);
6456 }),
6457
6458 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6459 // - It is a tab
6460 // - It is adjacent to an edge (start or end)
6461 // - It is adjacent to a whitespace (left or right)
6462 ShowWhitespaceSetting::Boundary => {
6463 // 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
6464 // the above cases.
6465 // Note: We zip in the original `invisibles` to check for tab equality
6466 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6467 for (([start, end], paint), invisible) in
6468 invisible_iter.zip_eq(self.invisibles.iter())
6469 {
6470 let should_render = match (&last_seen, invisible) {
6471 (_, Invisible::Tab { .. }) => true,
6472 (Some((_, last_end, _)), _) => *last_end == start,
6473 _ => false,
6474 };
6475
6476 if should_render || start == 0 || end == self.len {
6477 paint(window, cx);
6478
6479 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6480 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6481 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6482 // Note that we need to make sure that the last one is actually adjacent
6483 if !should_render_last && last_end == start {
6484 paint_last(window, cx);
6485 }
6486 }
6487 }
6488
6489 // Manually render anything within a selection
6490 let invisible_point = DisplayPoint::new(row, start as u32);
6491 if selection_ranges.iter().any(|region| {
6492 region.start <= invisible_point && invisible_point < region.end
6493 }) {
6494 paint(window, cx);
6495 }
6496
6497 last_seen = Some((should_render, end, paint));
6498 }
6499 }
6500 }
6501 }
6502
6503 pub fn x_for_index(&self, index: usize) -> Pixels {
6504 let mut fragment_start_x = Pixels::ZERO;
6505 let mut fragment_start_index = 0;
6506
6507 for fragment in &self.fragments {
6508 match fragment {
6509 LineFragment::Text(shaped_line) => {
6510 let fragment_end_index = fragment_start_index + shaped_line.len;
6511 if index < fragment_end_index {
6512 return fragment_start_x
6513 + shaped_line.x_for_index(index - fragment_start_index);
6514 }
6515 fragment_start_x += shaped_line.width;
6516 fragment_start_index = fragment_end_index;
6517 }
6518 LineFragment::Element { len, size, .. } => {
6519 let fragment_end_index = fragment_start_index + len;
6520 if index < fragment_end_index {
6521 return fragment_start_x;
6522 }
6523 fragment_start_x += size.width;
6524 fragment_start_index = fragment_end_index;
6525 }
6526 }
6527 }
6528
6529 fragment_start_x
6530 }
6531
6532 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6533 let mut fragment_start_x = Pixels::ZERO;
6534 let mut fragment_start_index = 0;
6535
6536 for fragment in &self.fragments {
6537 match fragment {
6538 LineFragment::Text(shaped_line) => {
6539 let fragment_end_x = fragment_start_x + shaped_line.width;
6540 if x < fragment_end_x {
6541 return Some(
6542 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6543 );
6544 }
6545 fragment_start_x = fragment_end_x;
6546 fragment_start_index += shaped_line.len;
6547 }
6548 LineFragment::Element { len, size, .. } => {
6549 let fragment_end_x = fragment_start_x + size.width;
6550 if x < fragment_end_x {
6551 return Some(fragment_start_index);
6552 }
6553 fragment_start_index += len;
6554 fragment_start_x = fragment_end_x;
6555 }
6556 }
6557 }
6558
6559 None
6560 }
6561
6562 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6563 let mut fragment_start_index = 0;
6564
6565 for fragment in &self.fragments {
6566 match fragment {
6567 LineFragment::Text(shaped_line) => {
6568 let fragment_end_index = fragment_start_index + shaped_line.len;
6569 if index < fragment_end_index {
6570 return shaped_line.font_id_for_index(index - fragment_start_index);
6571 }
6572 fragment_start_index = fragment_end_index;
6573 }
6574 LineFragment::Element { len, .. } => {
6575 let fragment_end_index = fragment_start_index + len;
6576 if index < fragment_end_index {
6577 return None;
6578 }
6579 fragment_start_index = fragment_end_index;
6580 }
6581 }
6582 }
6583
6584 None
6585 }
6586}
6587
6588#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6589enum Invisible {
6590 /// A tab character
6591 ///
6592 /// A tab character is internally represented by spaces (configured by the user's tab width)
6593 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6594 /// adjacency checks.
6595 Tab {
6596 line_start_offset: usize,
6597 line_end_offset: usize,
6598 },
6599 Whitespace {
6600 line_offset: usize,
6601 },
6602}
6603
6604impl EditorElement {
6605 /// Returns the rem size to use when rendering the [`EditorElement`].
6606 ///
6607 /// This allows UI elements to scale based on the `buffer_font_size`.
6608 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6609 match self.editor.read(cx).mode {
6610 EditorMode::Full => {
6611 let buffer_font_size = self.style.text.font_size;
6612 match buffer_font_size {
6613 AbsoluteLength::Pixels(pixels) => {
6614 let rem_size_scale = {
6615 // Our default UI font size is 14px on a 16px base scale.
6616 // This means the default UI font size is 0.875rems.
6617 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6618
6619 // We then determine the delta between a single rem and the default font
6620 // size scale.
6621 let default_font_size_delta = 1. - default_font_size_scale;
6622
6623 // Finally, we add this delta to 1rem to get the scale factor that
6624 // should be used to scale up the UI.
6625 1. + default_font_size_delta
6626 };
6627
6628 Some(pixels * rem_size_scale)
6629 }
6630 AbsoluteLength::Rems(rems) => {
6631 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6632 }
6633 }
6634 }
6635 // We currently use single-line and auto-height editors in UI contexts,
6636 // so we don't want to scale everything with the buffer font size, as it
6637 // ends up looking off.
6638 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6639 }
6640 }
6641}
6642
6643impl Element for EditorElement {
6644 type RequestLayoutState = ();
6645 type PrepaintState = EditorLayout;
6646
6647 fn id(&self) -> Option<ElementId> {
6648 None
6649 }
6650
6651 fn request_layout(
6652 &mut self,
6653 _: Option<&GlobalElementId>,
6654 window: &mut Window,
6655 cx: &mut App,
6656 ) -> (gpui::LayoutId, ()) {
6657 let rem_size = self.rem_size(cx);
6658 window.with_rem_size(rem_size, |window| {
6659 self.editor.update(cx, |editor, cx| {
6660 editor.set_style(self.style.clone(), window, cx);
6661
6662 let layout_id = match editor.mode {
6663 EditorMode::SingleLine { auto_width } => {
6664 let rem_size = window.rem_size();
6665
6666 let height = self.style.text.line_height_in_pixels(rem_size);
6667 if auto_width {
6668 let editor_handle = cx.entity().clone();
6669 let style = self.style.clone();
6670 window.request_measured_layout(
6671 Style::default(),
6672 move |_, _, window, cx| {
6673 let editor_snapshot = editor_handle
6674 .update(cx, |editor, cx| editor.snapshot(window, cx));
6675 let line = Self::layout_lines(
6676 DisplayRow(0)..DisplayRow(1),
6677 &editor_snapshot,
6678 &style,
6679 px(f32::MAX),
6680 |_| false, // Single lines never soft wrap
6681 window,
6682 cx,
6683 )
6684 .pop()
6685 .unwrap();
6686
6687 let font_id =
6688 window.text_system().resolve_font(&style.text.font());
6689 let font_size =
6690 style.text.font_size.to_pixels(window.rem_size());
6691 let em_width =
6692 window.text_system().em_width(font_id, font_size).unwrap();
6693
6694 size(line.width + em_width, height)
6695 },
6696 )
6697 } else {
6698 let mut style = Style::default();
6699 style.size.height = height.into();
6700 style.size.width = relative(1.).into();
6701 window.request_layout(style, None, cx)
6702 }
6703 }
6704 EditorMode::AutoHeight { max_lines } => {
6705 let editor_handle = cx.entity().clone();
6706 let max_line_number_width =
6707 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6708 window.request_measured_layout(
6709 Style::default(),
6710 move |known_dimensions, available_space, window, cx| {
6711 editor_handle
6712 .update(cx, |editor, cx| {
6713 compute_auto_height_layout(
6714 editor,
6715 max_lines,
6716 max_line_number_width,
6717 known_dimensions,
6718 available_space.width,
6719 window,
6720 cx,
6721 )
6722 })
6723 .unwrap_or_default()
6724 },
6725 )
6726 }
6727 EditorMode::Full => {
6728 let mut style = Style::default();
6729 style.size.width = relative(1.).into();
6730 style.size.height = relative(1.).into();
6731 window.request_layout(style, None, cx)
6732 }
6733 };
6734
6735 (layout_id, ())
6736 })
6737 })
6738 }
6739
6740 fn prepaint(
6741 &mut self,
6742 _: Option<&GlobalElementId>,
6743 bounds: Bounds<Pixels>,
6744 _: &mut Self::RequestLayoutState,
6745 window: &mut Window,
6746 cx: &mut App,
6747 ) -> Self::PrepaintState {
6748 let text_style = TextStyleRefinement {
6749 font_size: Some(self.style.text.font_size),
6750 line_height: Some(self.style.text.line_height),
6751 ..Default::default()
6752 };
6753 let focus_handle = self.editor.focus_handle(cx);
6754 window.set_view_id(self.editor.entity_id());
6755 window.set_focus_handle(&focus_handle, cx);
6756
6757 let rem_size = self.rem_size(cx);
6758 window.with_rem_size(rem_size, |window| {
6759 window.with_text_style(Some(text_style), |window| {
6760 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6761 let mut snapshot = self
6762 .editor
6763 .update(cx, |editor, cx| editor.snapshot(window, cx));
6764 let style = self.style.clone();
6765
6766 let font_id = window.text_system().resolve_font(&style.text.font());
6767 let font_size = style.text.font_size.to_pixels(window.rem_size());
6768 let line_height = style.text.line_height_in_pixels(window.rem_size());
6769 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6770 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6771
6772 let letter_size = size(em_width, line_height);
6773
6774 let gutter_dimensions = snapshot
6775 .gutter_dimensions(
6776 font_id,
6777 font_size,
6778 self.max_line_number_width(&snapshot, window, cx),
6779 cx,
6780 )
6781 .unwrap_or_default();
6782 let text_width = bounds.size.width - gutter_dimensions.width;
6783
6784 let editor_width = text_width - gutter_dimensions.margin - em_width;
6785
6786 snapshot = self.editor.update(cx, |editor, cx| {
6787 editor.last_bounds = Some(bounds);
6788 editor.gutter_dimensions = gutter_dimensions;
6789 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6790
6791 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6792 snapshot
6793 } else {
6794 let wrap_width = match editor.soft_wrap_mode(cx) {
6795 SoftWrap::GitDiff => None,
6796 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6797 SoftWrap::EditorWidth => Some(editor_width),
6798 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6799 SoftWrap::Bounded(column) => {
6800 Some(editor_width.min(column as f32 * em_advance))
6801 }
6802 };
6803
6804 if editor.set_wrap_width(wrap_width, cx) {
6805 editor.snapshot(window, cx)
6806 } else {
6807 snapshot
6808 }
6809 }
6810 });
6811
6812 let wrap_guides = self
6813 .editor
6814 .read(cx)
6815 .wrap_guides(cx)
6816 .iter()
6817 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6818 .collect::<SmallVec<[_; 2]>>();
6819
6820 let hitbox = window.insert_hitbox(bounds, false);
6821 let gutter_hitbox =
6822 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6823 let text_hitbox = window.insert_hitbox(
6824 Bounds {
6825 origin: gutter_hitbox.top_right(),
6826 size: size(text_width, bounds.size.height),
6827 },
6828 false,
6829 );
6830 // Offset the content_bounds from the text_bounds by the gutter margin (which
6831 // is roughly half a character wide) to make hit testing work more like how we want.
6832 let content_origin =
6833 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6834
6835 let scrollbar_bounds =
6836 Bounds::from_corners(content_origin, bounds.bottom_right());
6837
6838 let height_in_lines = scrollbar_bounds.size.height / line_height;
6839
6840 // NOTE: The max row number in the current file, minus one
6841 let max_row = snapshot.max_point().row().as_f32();
6842
6843 // NOTE: The max scroll position for the top of the window
6844 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6845 (max_row - height_in_lines + 1.).max(0.)
6846 } else {
6847 let settings = EditorSettings::get_global(cx);
6848 match settings.scroll_beyond_last_line {
6849 ScrollBeyondLastLine::OnePage => max_row,
6850 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6851 ScrollBeyondLastLine::VerticalScrollMargin => {
6852 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6853 .max(0.)
6854 }
6855 }
6856 };
6857
6858 // TODO: Autoscrolling for both axes
6859 let mut autoscroll_request = None;
6860 let mut autoscroll_containing_element = false;
6861 let mut autoscroll_horizontally = false;
6862 self.editor.update(cx, |editor, cx| {
6863 autoscroll_request = editor.autoscroll_request();
6864 autoscroll_containing_element =
6865 autoscroll_request.is_some() || editor.has_pending_selection();
6866 // TODO: Is this horizontal or vertical?!
6867 autoscroll_horizontally = editor.autoscroll_vertically(
6868 bounds,
6869 line_height,
6870 max_scroll_top,
6871 window,
6872 cx,
6873 );
6874 snapshot = editor.snapshot(window, cx);
6875 });
6876
6877 let mut scroll_position = snapshot.scroll_position();
6878 // The scroll position is a fractional point, the whole number of which represents
6879 // the top of the window in terms of display rows.
6880 let start_row = DisplayRow(scroll_position.y as u32);
6881 let max_row = snapshot.max_point().row();
6882 let end_row = cmp::min(
6883 (scroll_position.y + height_in_lines).ceil() as u32,
6884 max_row.next_row().0,
6885 );
6886 let end_row = DisplayRow(end_row);
6887
6888 let row_infos = snapshot
6889 .row_infos(start_row)
6890 .take((start_row..end_row).len())
6891 .collect::<Vec<RowInfo>>();
6892 let is_row_soft_wrapped = |row: usize| {
6893 row_infos
6894 .get(row)
6895 .map_or(true, |info| info.buffer_row.is_none())
6896 };
6897
6898 let start_anchor = if start_row == Default::default() {
6899 Anchor::min()
6900 } else {
6901 snapshot.buffer_snapshot.anchor_before(
6902 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6903 )
6904 };
6905 let end_anchor = if end_row > max_row {
6906 Anchor::max()
6907 } else {
6908 snapshot.buffer_snapshot.anchor_before(
6909 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6910 )
6911 };
6912
6913 let mut highlighted_rows = self
6914 .editor
6915 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6916
6917 for (ix, row_info) in row_infos.iter().enumerate() {
6918 let color = match row_info.diff_status {
6919 Some(DiffHunkStatus::Added) => style.status.created_background,
6920 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6921 _ => continue,
6922 };
6923 highlighted_rows
6924 .entry(start_row + DisplayRow(ix as u32))
6925 .or_insert(color);
6926 }
6927
6928 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6929 start_anchor..end_anchor,
6930 &snapshot.display_snapshot,
6931 cx.theme().colors(),
6932 );
6933 let highlighted_gutter_ranges =
6934 self.editor.read(cx).gutter_highlights_in_range(
6935 start_anchor..end_anchor,
6936 &snapshot.display_snapshot,
6937 cx,
6938 );
6939
6940 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6941 start_anchor..end_anchor,
6942 &snapshot.display_snapshot,
6943 cx,
6944 );
6945
6946 let (local_selections, selected_buffer_ids): (
6947 Vec<Selection<Point>>,
6948 Vec<BufferId>,
6949 ) = self.editor.update(cx, |editor, cx| {
6950 let all_selections = editor.selections.all::<Point>(cx);
6951 let selected_buffer_ids = if editor.is_singleton(cx) {
6952 Vec::new()
6953 } else {
6954 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6955
6956 for selection in all_selections {
6957 for buffer_id in snapshot
6958 .buffer_snapshot
6959 .buffer_ids_for_range(selection.range())
6960 {
6961 if selected_buffer_ids.last() != Some(&buffer_id) {
6962 selected_buffer_ids.push(buffer_id);
6963 }
6964 }
6965 }
6966
6967 selected_buffer_ids
6968 };
6969
6970 let mut selections = editor
6971 .selections
6972 .disjoint_in_range(start_anchor..end_anchor, cx);
6973 selections.extend(editor.selections.pending(cx));
6974
6975 (selections, selected_buffer_ids)
6976 });
6977
6978 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6979 start_anchor,
6980 end_anchor,
6981 &local_selections,
6982 &snapshot,
6983 start_row,
6984 end_row,
6985 window,
6986 cx,
6987 );
6988
6989 let line_numbers = self.layout_line_numbers(
6990 Some(&gutter_hitbox),
6991 gutter_dimensions,
6992 line_height,
6993 scroll_position,
6994 start_row..end_row,
6995 &row_infos,
6996 newest_selection_head,
6997 &snapshot,
6998 window,
6999 cx,
7000 );
7001
7002 let mut crease_toggles =
7003 window.with_element_namespace("crease_toggles", |window| {
7004 self.layout_crease_toggles(
7005 start_row..end_row,
7006 &row_infos,
7007 &active_rows,
7008 &snapshot,
7009 window,
7010 cx,
7011 )
7012 });
7013 let crease_trailers =
7014 window.with_element_namespace("crease_trailers", |window| {
7015 self.layout_crease_trailers(
7016 row_infos.iter().copied(),
7017 &snapshot,
7018 window,
7019 cx,
7020 )
7021 });
7022
7023 let display_hunks = self.layout_gutter_diff_hunks(
7024 line_height,
7025 &gutter_hitbox,
7026 start_row..end_row,
7027 &snapshot,
7028 window,
7029 cx,
7030 );
7031
7032 let mut line_layouts = Self::layout_lines(
7033 start_row..end_row,
7034 &snapshot,
7035 &self.style,
7036 editor_width,
7037 is_row_soft_wrapped,
7038 window,
7039 cx,
7040 );
7041
7042 let longest_line_blame_width = self
7043 .editor
7044 .update(cx, |editor, cx| {
7045 if !editor.show_git_blame_inline {
7046 return None;
7047 }
7048 let blame = editor.blame.as_ref()?;
7049 let blame_entry = blame
7050 .update(cx, |blame, cx| {
7051 let row_infos =
7052 snapshot.row_infos(snapshot.longest_row()).next()?;
7053 blame.blame_for_rows(&[row_infos], cx).next()
7054 })
7055 .flatten()?;
7056 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7057 let mut element = render_inline_blame_entry(
7058 blame,
7059 blame_entry,
7060 &style,
7061 workspace,
7062 cx,
7063 );
7064 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7065 Some(
7066 element
7067 .layout_as_root(AvailableSpace::min_size(), window, cx)
7068 .width
7069 + inline_blame_padding,
7070 )
7071 })
7072 .unwrap_or(Pixels::ZERO);
7073
7074 let longest_line_width = layout_line(
7075 snapshot.longest_row(),
7076 &snapshot,
7077 &style,
7078 editor_width,
7079 is_row_soft_wrapped,
7080 window,
7081 cx,
7082 )
7083 .width;
7084
7085 let scrollbar_range_data = ScrollbarRangeData::new(
7086 scrollbar_bounds,
7087 letter_size,
7088 &snapshot,
7089 longest_line_width,
7090 longest_line_blame_width,
7091 &style,
7092 cx,
7093 );
7094
7095 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7096 let mut scroll_width = scroll_range_bounds.size.width;
7097
7098 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7099 snapshot.sticky_header_excerpt(start_row)
7100 } else {
7101 None
7102 };
7103 let sticky_header_excerpt_id =
7104 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7105
7106 let blocks = window.with_element_namespace("blocks", |window| {
7107 self.render_blocks(
7108 start_row..end_row,
7109 &snapshot,
7110 &hitbox,
7111 &text_hitbox,
7112 editor_width,
7113 &mut scroll_width,
7114 &gutter_dimensions,
7115 em_width,
7116 gutter_dimensions.full_width(),
7117 line_height,
7118 &line_layouts,
7119 &local_selections,
7120 &selected_buffer_ids,
7121 is_row_soft_wrapped,
7122 sticky_header_excerpt_id,
7123 window,
7124 cx,
7125 )
7126 });
7127 let mut blocks = match blocks {
7128 Ok(blocks) => blocks,
7129 Err(resized_blocks) => {
7130 self.editor.update(cx, |editor, cx| {
7131 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7132 });
7133 return self.prepaint(None, bounds, &mut (), window, cx);
7134 }
7135 };
7136
7137 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7138 window.with_element_namespace("blocks", |window| {
7139 self.layout_sticky_buffer_header(
7140 sticky_header_excerpt,
7141 scroll_position.y,
7142 line_height,
7143 &snapshot,
7144 &hitbox,
7145 &selected_buffer_ids,
7146 window,
7147 cx,
7148 )
7149 })
7150 });
7151
7152 let start_buffer_row =
7153 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7154 let end_buffer_row =
7155 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7156
7157 let scroll_max = point(
7158 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7159 max_row.as_f32(),
7160 );
7161
7162 self.editor.update(cx, |editor, cx| {
7163 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7164
7165 let autoscrolled = if autoscroll_horizontally {
7166 editor.autoscroll_horizontally(
7167 start_row,
7168 editor_width - (letter_size.width / 2.0),
7169 scroll_width,
7170 em_width,
7171 &line_layouts,
7172 cx,
7173 )
7174 } else {
7175 false
7176 };
7177
7178 if clamped || autoscrolled {
7179 snapshot = editor.snapshot(window, cx);
7180 scroll_position = snapshot.scroll_position();
7181 }
7182 });
7183
7184 let scroll_pixel_position = point(
7185 scroll_position.x * em_width,
7186 scroll_position.y * line_height,
7187 );
7188
7189 let indent_guides = self.layout_indent_guides(
7190 content_origin,
7191 text_hitbox.origin,
7192 start_buffer_row..end_buffer_row,
7193 scroll_pixel_position,
7194 line_height,
7195 &snapshot,
7196 window,
7197 cx,
7198 );
7199
7200 let crease_trailers =
7201 window.with_element_namespace("crease_trailers", |window| {
7202 self.prepaint_crease_trailers(
7203 crease_trailers,
7204 &line_layouts,
7205 line_height,
7206 content_origin,
7207 scroll_pixel_position,
7208 em_width,
7209 window,
7210 cx,
7211 )
7212 });
7213
7214 let mut inline_blame = None;
7215 if let Some(newest_selection_head) = newest_selection_head {
7216 let display_row = newest_selection_head.row();
7217 if (start_row..end_row).contains(&display_row) {
7218 let line_ix = display_row.minus(start_row) as usize;
7219 let row_info = &row_infos[line_ix];
7220 let line_layout = &line_layouts[line_ix];
7221 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7222 inline_blame = self.layout_inline_blame(
7223 display_row,
7224 row_info,
7225 line_layout,
7226 crease_trailer_layout,
7227 em_width,
7228 content_origin,
7229 scroll_pixel_position,
7230 line_height,
7231 window,
7232 cx,
7233 );
7234 }
7235 }
7236
7237 let blamed_display_rows = self.layout_blame_entries(
7238 &row_infos,
7239 em_width,
7240 scroll_position,
7241 line_height,
7242 &gutter_hitbox,
7243 gutter_dimensions.git_blame_entries_width,
7244 window,
7245 cx,
7246 );
7247
7248 let scroll_max = point(
7249 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7250 max_scroll_top,
7251 );
7252
7253 self.editor.update(cx, |editor, cx| {
7254 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7255
7256 let autoscrolled = if autoscroll_horizontally {
7257 editor.autoscroll_horizontally(
7258 start_row,
7259 editor_width - (letter_size.width / 2.0),
7260 scroll_width,
7261 em_width,
7262 &line_layouts,
7263 cx,
7264 )
7265 } else {
7266 false
7267 };
7268
7269 if clamped || autoscrolled {
7270 snapshot = editor.snapshot(window, cx);
7271 scroll_position = snapshot.scroll_position();
7272 }
7273 });
7274
7275 let line_elements = self.prepaint_lines(
7276 start_row,
7277 &mut line_layouts,
7278 line_height,
7279 scroll_pixel_position,
7280 content_origin,
7281 window,
7282 cx,
7283 );
7284
7285 let mut block_start_rows = HashSet::default();
7286
7287 window.with_element_namespace("blocks", |window| {
7288 self.layout_blocks(
7289 &mut blocks,
7290 &mut block_start_rows,
7291 &hitbox,
7292 line_height,
7293 scroll_pixel_position,
7294 window,
7295 cx,
7296 );
7297 });
7298
7299 let cursors = self.collect_cursors(&snapshot, cx);
7300 let visible_row_range = start_row..end_row;
7301 let non_visible_cursors = cursors
7302 .iter()
7303 .any(move |c| !visible_row_range.contains(&c.0.row()));
7304
7305 let visible_cursors = self.layout_visible_cursors(
7306 &snapshot,
7307 &selections,
7308 &block_start_rows,
7309 start_row..end_row,
7310 &line_layouts,
7311 &text_hitbox,
7312 content_origin,
7313 scroll_position,
7314 scroll_pixel_position,
7315 line_height,
7316 em_width,
7317 em_advance,
7318 autoscroll_containing_element,
7319 window,
7320 cx,
7321 );
7322
7323 let scrollbars_layout = self.layout_scrollbars(
7324 &snapshot,
7325 scrollbar_range_data,
7326 scroll_position,
7327 non_visible_cursors,
7328 window,
7329 cx,
7330 );
7331
7332 let gutter_settings = EditorSettings::get_global(cx).gutter;
7333
7334 let rows_with_hunk_bounds = display_hunks
7335 .iter()
7336 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7337 .fold(
7338 HashMap::default(),
7339 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7340 match hunk {
7341 DisplayDiffHunk::Folded { display_row } => {
7342 rows_with_hunk_bounds.insert(*display_row, bounds);
7343 }
7344 DisplayDiffHunk::Unfolded {
7345 display_row_range, ..
7346 } => {
7347 for display_row in display_row_range.iter_rows() {
7348 rows_with_hunk_bounds.insert(display_row, bounds);
7349 }
7350 }
7351 }
7352 rows_with_hunk_bounds
7353 },
7354 );
7355 let mut code_actions_indicator = None;
7356 if let Some(newest_selection_head) = newest_selection_head {
7357 let newest_selection_point =
7358 newest_selection_head.to_point(&snapshot.display_snapshot);
7359
7360 if (start_row..end_row).contains(&newest_selection_head.row()) {
7361 self.layout_cursor_popovers(
7362 line_height,
7363 &text_hitbox,
7364 content_origin,
7365 start_row,
7366 scroll_pixel_position,
7367 &line_layouts,
7368 newest_selection_head,
7369 newest_selection_point,
7370 &style,
7371 window,
7372 cx,
7373 );
7374
7375 let show_code_actions = snapshot
7376 .show_code_actions
7377 .unwrap_or(gutter_settings.code_actions);
7378 if show_code_actions {
7379 let newest_selection_point =
7380 newest_selection_head.to_point(&snapshot.display_snapshot);
7381 if !snapshot
7382 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7383 {
7384 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7385 MultiBufferRow(newest_selection_point.row),
7386 );
7387 if let Some((buffer, range)) = buffer {
7388 let buffer_id = buffer.remote_id();
7389 let row = range.start.row;
7390 let has_test_indicator = self
7391 .editor
7392 .read(cx)
7393 .tasks
7394 .contains_key(&(buffer_id, row));
7395
7396 if !has_test_indicator {
7397 code_actions_indicator = self
7398 .layout_code_actions_indicator(
7399 line_height,
7400 newest_selection_head,
7401 scroll_pixel_position,
7402 &gutter_dimensions,
7403 &gutter_hitbox,
7404 &rows_with_hunk_bounds,
7405 window,
7406 cx,
7407 );
7408 }
7409 }
7410 }
7411 }
7412 }
7413 }
7414
7415 self.layout_gutter_menu(
7416 line_height,
7417 &text_hitbox,
7418 content_origin,
7419 scroll_pixel_position,
7420 gutter_dimensions.width - gutter_dimensions.left_padding,
7421 window,
7422 cx,
7423 );
7424
7425 let test_indicators = if gutter_settings.runnables {
7426 self.layout_run_indicators(
7427 line_height,
7428 start_row..end_row,
7429 scroll_pixel_position,
7430 &gutter_dimensions,
7431 &gutter_hitbox,
7432 &rows_with_hunk_bounds,
7433 &snapshot,
7434 window,
7435 cx,
7436 )
7437 } else {
7438 Vec::new()
7439 };
7440
7441 self.layout_signature_help(
7442 &hitbox,
7443 content_origin,
7444 scroll_pixel_position,
7445 newest_selection_head,
7446 start_row,
7447 &line_layouts,
7448 line_height,
7449 em_width,
7450 window,
7451 cx,
7452 );
7453
7454 if !cx.has_active_drag() {
7455 self.layout_hover_popovers(
7456 &snapshot,
7457 &hitbox,
7458 &text_hitbox,
7459 start_row..end_row,
7460 content_origin,
7461 scroll_pixel_position,
7462 &line_layouts,
7463 line_height,
7464 em_width,
7465 window,
7466 cx,
7467 );
7468 }
7469
7470 let inline_completion_popover = self.layout_inline_completion_popover(
7471 &text_hitbox.bounds,
7472 &snapshot,
7473 start_row..end_row,
7474 scroll_position.y,
7475 scroll_position.y + height_in_lines,
7476 &line_layouts,
7477 line_height,
7478 scroll_pixel_position,
7479 newest_selection_head,
7480 editor_width,
7481 &style,
7482 window,
7483 cx,
7484 );
7485
7486 let mouse_context_menu = self.layout_mouse_context_menu(
7487 &snapshot,
7488 start_row..end_row,
7489 content_origin,
7490 window,
7491 cx,
7492 );
7493
7494 window.with_element_namespace("crease_toggles", |window| {
7495 self.prepaint_crease_toggles(
7496 &mut crease_toggles,
7497 line_height,
7498 &gutter_dimensions,
7499 gutter_settings,
7500 scroll_pixel_position,
7501 &gutter_hitbox,
7502 window,
7503 cx,
7504 )
7505 });
7506
7507 let invisible_symbol_font_size = font_size / 2.;
7508 let tab_invisible = window
7509 .text_system()
7510 .shape_line(
7511 "→".into(),
7512 invisible_symbol_font_size,
7513 &[TextRun {
7514 len: "→".len(),
7515 font: self.style.text.font(),
7516 color: cx.theme().colors().editor_invisible,
7517 background_color: None,
7518 underline: None,
7519 strikethrough: None,
7520 }],
7521 )
7522 .unwrap();
7523 let space_invisible = window
7524 .text_system()
7525 .shape_line(
7526 "•".into(),
7527 invisible_symbol_font_size,
7528 &[TextRun {
7529 len: "•".len(),
7530 font: self.style.text.font(),
7531 color: cx.theme().colors().editor_invisible,
7532 background_color: None,
7533 underline: None,
7534 strikethrough: None,
7535 }],
7536 )
7537 .unwrap();
7538
7539 let mode = snapshot.mode;
7540
7541 let position_map = Rc::new(PositionMap {
7542 size: bounds.size,
7543 scroll_pixel_position,
7544 scroll_max,
7545 line_layouts,
7546 line_height,
7547 em_width,
7548 em_advance,
7549 snapshot,
7550 });
7551
7552 let hunk_controls = self.layout_diff_hunk_controls(
7553 start_row..end_row,
7554 &row_infos,
7555 &text_hitbox,
7556 &position_map,
7557 newest_selection_head,
7558 line_height,
7559 scroll_pixel_position,
7560 &display_hunks,
7561 self.editor.clone(),
7562 window,
7563 cx,
7564 );
7565
7566 EditorLayout {
7567 mode,
7568 position_map,
7569 visible_display_row_range: start_row..end_row,
7570 wrap_guides,
7571 indent_guides,
7572 hitbox,
7573 text_hitbox,
7574 gutter_hitbox,
7575 display_hunks,
7576 content_origin,
7577 scrollbars_layout,
7578 active_rows,
7579 highlighted_rows,
7580 highlighted_ranges,
7581 highlighted_gutter_ranges,
7582 redacted_ranges,
7583 line_elements,
7584 line_numbers,
7585 blamed_display_rows,
7586 inline_blame,
7587 blocks,
7588 cursors,
7589 visible_cursors,
7590 selections,
7591 inline_completion_popover,
7592 diff_hunk_controls: hunk_controls,
7593 mouse_context_menu,
7594 test_indicators,
7595 code_actions_indicator,
7596 crease_toggles,
7597 crease_trailers,
7598 tab_invisible,
7599 space_invisible,
7600 sticky_buffer_header,
7601 }
7602 })
7603 })
7604 })
7605 }
7606
7607 fn paint(
7608 &mut self,
7609 _: Option<&GlobalElementId>,
7610 bounds: Bounds<gpui::Pixels>,
7611 _: &mut Self::RequestLayoutState,
7612 layout: &mut Self::PrepaintState,
7613 window: &mut Window,
7614 cx: &mut App,
7615 ) {
7616 let focus_handle = self.editor.focus_handle(cx);
7617 let key_context = self
7618 .editor
7619 .update(cx, |editor, cx| editor.key_context(window, cx));
7620
7621 window.set_key_context(key_context);
7622 window.handle_input(
7623 &focus_handle,
7624 ElementInputHandler::new(bounds, self.editor.clone()),
7625 cx,
7626 );
7627 self.register_actions(window, cx);
7628 self.register_key_listeners(window, cx, layout);
7629
7630 let text_style = TextStyleRefinement {
7631 font_size: Some(self.style.text.font_size),
7632 line_height: Some(self.style.text.line_height),
7633 ..Default::default()
7634 };
7635 let rem_size = self.rem_size(cx);
7636 window.with_rem_size(rem_size, |window| {
7637 window.with_text_style(Some(text_style), |window| {
7638 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7639 self.paint_mouse_listeners(layout, window, cx);
7640 self.paint_background(layout, window, cx);
7641 self.paint_indent_guides(layout, window, cx);
7642
7643 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7644 self.paint_blamed_display_rows(layout, window, cx);
7645 self.paint_line_numbers(layout, window, cx);
7646 }
7647
7648 self.paint_text(layout, window, cx);
7649
7650 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7651 self.paint_gutter_highlights(layout, window, cx);
7652 self.paint_gutter_indicators(layout, window, cx);
7653 }
7654
7655 if !layout.blocks.is_empty() {
7656 window.with_element_namespace("blocks", |window| {
7657 self.paint_blocks(layout, window, cx);
7658 });
7659 }
7660
7661 window.with_element_namespace("blocks", |window| {
7662 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7663 sticky_header.paint(window, cx)
7664 }
7665 });
7666
7667 self.paint_scrollbars(layout, window, cx);
7668 self.paint_inline_completion_popover(layout, window, cx);
7669 self.paint_mouse_context_menu(layout, window, cx);
7670 });
7671 })
7672 })
7673 }
7674}
7675
7676pub(super) fn gutter_bounds(
7677 editor_bounds: Bounds<Pixels>,
7678 gutter_dimensions: GutterDimensions,
7679) -> Bounds<Pixels> {
7680 Bounds {
7681 origin: editor_bounds.origin,
7682 size: size(gutter_dimensions.width, editor_bounds.size.height),
7683 }
7684}
7685
7686struct ScrollbarRangeData {
7687 scrollbar_bounds: Bounds<Pixels>,
7688 scroll_range: Bounds<Pixels>,
7689 letter_size: Size<Pixels>,
7690}
7691
7692impl ScrollbarRangeData {
7693 pub fn new(
7694 scrollbar_bounds: Bounds<Pixels>,
7695 letter_size: Size<Pixels>,
7696 snapshot: &EditorSnapshot,
7697 longest_line_width: Pixels,
7698 longest_line_blame_width: Pixels,
7699 style: &EditorStyle,
7700
7701 cx: &mut App,
7702 ) -> ScrollbarRangeData {
7703 // TODO: Simplify this function down, it requires a lot of parameters
7704 let max_row = snapshot.max_point().row();
7705 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7706
7707 let scrollbar_width = style.scrollbar_width;
7708
7709 let settings = EditorSettings::get_global(cx);
7710 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7711 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7712 ScrollBeyondLastLine::Off => px(1.),
7713 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7714 };
7715
7716 let overscroll = size(
7717 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7718 letter_size.height * scroll_beyond_last_line,
7719 );
7720
7721 let scroll_range = Bounds {
7722 origin: scrollbar_bounds.origin,
7723 size: text_bounds_size + overscroll,
7724 };
7725
7726 ScrollbarRangeData {
7727 scrollbar_bounds,
7728 scroll_range,
7729 letter_size,
7730 }
7731 }
7732}
7733
7734impl IntoElement for EditorElement {
7735 type Element = Self;
7736
7737 fn into_element(self) -> Self::Element {
7738 self
7739 }
7740}
7741
7742pub struct EditorLayout {
7743 position_map: Rc<PositionMap>,
7744 hitbox: Hitbox,
7745 text_hitbox: Hitbox,
7746 gutter_hitbox: Hitbox,
7747 content_origin: gpui::Point<Pixels>,
7748 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7749 mode: EditorMode,
7750 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7751 indent_guides: Option<Vec<IndentGuideLayout>>,
7752 visible_display_row_range: Range<DisplayRow>,
7753 active_rows: BTreeMap<DisplayRow, bool>,
7754 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7755 line_elements: SmallVec<[AnyElement; 1]>,
7756 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7757 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7758 blamed_display_rows: Option<Vec<AnyElement>>,
7759 inline_blame: Option<AnyElement>,
7760 blocks: Vec<BlockLayout>,
7761 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7762 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7763 redacted_ranges: Vec<Range<DisplayPoint>>,
7764 cursors: Vec<(DisplayPoint, Hsla)>,
7765 visible_cursors: Vec<CursorLayout>,
7766 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7767 code_actions_indicator: Option<AnyElement>,
7768 test_indicators: Vec<AnyElement>,
7769 crease_toggles: Vec<Option<AnyElement>>,
7770 diff_hunk_controls: Vec<AnyElement>,
7771 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7772 inline_completion_popover: Option<AnyElement>,
7773 mouse_context_menu: Option<AnyElement>,
7774 tab_invisible: ShapedLine,
7775 space_invisible: ShapedLine,
7776 sticky_buffer_header: Option<AnyElement>,
7777}
7778
7779impl EditorLayout {
7780 fn line_end_overshoot(&self) -> Pixels {
7781 0.15 * self.position_map.line_height
7782 }
7783}
7784
7785struct LineNumberLayout {
7786 shaped_line: ShapedLine,
7787 hitbox: Option<Hitbox>,
7788 display_row: DisplayRow,
7789}
7790
7791struct ColoredRange<T> {
7792 start: T,
7793 end: T,
7794 color: Hsla,
7795}
7796
7797#[derive(Clone)]
7798struct ScrollbarLayout {
7799 hitbox: Hitbox,
7800 visible_range: Range<f32>,
7801 visible: bool,
7802 text_unit_size: Pixels,
7803 thumb_size: Pixels,
7804 axis: Axis,
7805}
7806
7807impl ScrollbarLayout {
7808 const BORDER_WIDTH: Pixels = px(1.0);
7809 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7810 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7811 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7812
7813 fn thumb_bounds(&self) -> Bounds<Pixels> {
7814 match self.axis {
7815 Axis::Vertical => {
7816 let thumb_top = self.y_for_row(self.visible_range.start);
7817 let thumb_bottom = thumb_top + self.thumb_size;
7818 Bounds::from_corners(
7819 point(self.hitbox.left(), thumb_top),
7820 point(self.hitbox.right(), thumb_bottom),
7821 )
7822 }
7823 Axis::Horizontal => {
7824 let thumb_left =
7825 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7826 let thumb_right = thumb_left + self.thumb_size;
7827 Bounds::from_corners(
7828 point(thumb_left, self.hitbox.top()),
7829 point(thumb_right, self.hitbox.bottom()),
7830 )
7831 }
7832 }
7833 }
7834
7835 fn y_for_row(&self, row: f32) -> Pixels {
7836 self.hitbox.top() + row * self.text_unit_size
7837 }
7838
7839 fn marker_quads_for_ranges(
7840 &self,
7841 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7842 column: Option<usize>,
7843 ) -> Vec<PaintQuad> {
7844 struct MinMax {
7845 min: Pixels,
7846 max: Pixels,
7847 }
7848 let (x_range, height_limit) = if let Some(column) = column {
7849 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7850 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7851 let end = start + column_width;
7852 (
7853 Range { start, end },
7854 MinMax {
7855 min: Self::MIN_MARKER_HEIGHT,
7856 max: px(f32::MAX),
7857 },
7858 )
7859 } else {
7860 (
7861 Range {
7862 start: Self::BORDER_WIDTH,
7863 end: self.hitbox.size.width,
7864 },
7865 MinMax {
7866 min: Self::LINE_MARKER_HEIGHT,
7867 max: Self::LINE_MARKER_HEIGHT,
7868 },
7869 )
7870 };
7871
7872 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7873 let mut pixel_ranges = row_ranges
7874 .into_iter()
7875 .map(|range| {
7876 let start_y = row_to_y(range.start);
7877 let end_y = row_to_y(range.end)
7878 + self
7879 .text_unit_size
7880 .max(height_limit.min)
7881 .min(height_limit.max);
7882 ColoredRange {
7883 start: start_y,
7884 end: end_y,
7885 color: range.color,
7886 }
7887 })
7888 .peekable();
7889
7890 let mut quads = Vec::new();
7891 while let Some(mut pixel_range) = pixel_ranges.next() {
7892 while let Some(next_pixel_range) = pixel_ranges.peek() {
7893 if pixel_range.end >= next_pixel_range.start - px(1.0)
7894 && pixel_range.color == next_pixel_range.color
7895 {
7896 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7897 pixel_ranges.next();
7898 } else {
7899 break;
7900 }
7901 }
7902
7903 let bounds = Bounds::from_corners(
7904 point(x_range.start, pixel_range.start),
7905 point(x_range.end, pixel_range.end),
7906 );
7907 quads.push(quad(
7908 bounds,
7909 Corners::default(),
7910 pixel_range.color,
7911 Edges::default(),
7912 Hsla::transparent_black(),
7913 ));
7914 }
7915
7916 quads
7917 }
7918}
7919
7920struct CreaseTrailerLayout {
7921 element: AnyElement,
7922 bounds: Bounds<Pixels>,
7923}
7924
7925struct PositionMap {
7926 size: Size<Pixels>,
7927 line_height: Pixels,
7928 scroll_pixel_position: gpui::Point<Pixels>,
7929 scroll_max: gpui::Point<f32>,
7930 em_width: Pixels,
7931 em_advance: Pixels,
7932 line_layouts: Vec<LineWithInvisibles>,
7933 snapshot: EditorSnapshot,
7934}
7935
7936#[derive(Debug, Copy, Clone)]
7937pub struct PointForPosition {
7938 pub previous_valid: DisplayPoint,
7939 pub next_valid: DisplayPoint,
7940 pub exact_unclipped: DisplayPoint,
7941 pub column_overshoot_after_line_end: u32,
7942}
7943
7944impl PointForPosition {
7945 pub fn as_valid(&self) -> Option<DisplayPoint> {
7946 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7947 Some(self.previous_valid)
7948 } else {
7949 None
7950 }
7951 }
7952}
7953
7954impl PositionMap {
7955 fn point_for_position(
7956 &self,
7957 text_bounds: Bounds<Pixels>,
7958 position: gpui::Point<Pixels>,
7959 ) -> PointForPosition {
7960 let scroll_position = self.snapshot.scroll_position();
7961 let position = position - text_bounds.origin;
7962 let y = position.y.max(px(0.)).min(self.size.height);
7963 let x = position.x + (scroll_position.x * self.em_width);
7964 let row = ((y / self.line_height) + scroll_position.y) as u32;
7965
7966 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7967 .line_layouts
7968 .get(row as usize - scroll_position.y as usize)
7969 {
7970 if let Some(ix) = line.index_for_x(x) {
7971 (ix as u32, px(0.))
7972 } else {
7973 (line.len as u32, px(0.).max(x - line.width))
7974 }
7975 } else {
7976 (0, x)
7977 };
7978
7979 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7980 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7981 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7982
7983 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7984 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7985 PointForPosition {
7986 previous_valid,
7987 next_valid,
7988 exact_unclipped,
7989 column_overshoot_after_line_end,
7990 }
7991 }
7992}
7993
7994struct BlockLayout {
7995 id: BlockId,
7996 row: Option<DisplayRow>,
7997 element: AnyElement,
7998 available_space: Size<AvailableSpace>,
7999 style: BlockStyle,
8000}
8001
8002fn layout_line(
8003 row: DisplayRow,
8004 snapshot: &EditorSnapshot,
8005 style: &EditorStyle,
8006 text_width: Pixels,
8007 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8008 window: &mut Window,
8009 cx: &mut App,
8010) -> LineWithInvisibles {
8011 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8012 LineWithInvisibles::from_chunks(
8013 chunks,
8014 &style,
8015 MAX_LINE_LEN,
8016 1,
8017 snapshot.mode,
8018 text_width,
8019 is_row_soft_wrapped,
8020 window,
8021 cx,
8022 )
8023 .pop()
8024 .unwrap()
8025}
8026
8027#[derive(Debug)]
8028pub struct IndentGuideLayout {
8029 origin: gpui::Point<Pixels>,
8030 length: Pixels,
8031 single_indent_width: Pixels,
8032 depth: u32,
8033 active: bool,
8034 settings: IndentGuideSettings,
8035}
8036
8037pub struct CursorLayout {
8038 origin: gpui::Point<Pixels>,
8039 block_width: Pixels,
8040 line_height: Pixels,
8041 color: Hsla,
8042 shape: CursorShape,
8043 block_text: Option<ShapedLine>,
8044 cursor_name: Option<AnyElement>,
8045}
8046
8047#[derive(Debug)]
8048pub struct CursorName {
8049 string: SharedString,
8050 color: Hsla,
8051 is_top_row: bool,
8052}
8053
8054impl CursorLayout {
8055 pub fn new(
8056 origin: gpui::Point<Pixels>,
8057 block_width: Pixels,
8058 line_height: Pixels,
8059 color: Hsla,
8060 shape: CursorShape,
8061 block_text: Option<ShapedLine>,
8062 ) -> CursorLayout {
8063 CursorLayout {
8064 origin,
8065 block_width,
8066 line_height,
8067 color,
8068 shape,
8069 block_text,
8070 cursor_name: None,
8071 }
8072 }
8073
8074 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8075 Bounds {
8076 origin: self.origin + origin,
8077 size: size(self.block_width, self.line_height),
8078 }
8079 }
8080
8081 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8082 match self.shape {
8083 CursorShape::Bar => Bounds {
8084 origin: self.origin + origin,
8085 size: size(px(2.0), self.line_height),
8086 },
8087 CursorShape::Block | CursorShape::Hollow => Bounds {
8088 origin: self.origin + origin,
8089 size: size(self.block_width, self.line_height),
8090 },
8091 CursorShape::Underline => Bounds {
8092 origin: self.origin
8093 + origin
8094 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8095 size: size(self.block_width, px(2.0)),
8096 },
8097 }
8098 }
8099
8100 pub fn layout(
8101 &mut self,
8102 origin: gpui::Point<Pixels>,
8103 cursor_name: Option<CursorName>,
8104 window: &mut Window,
8105 cx: &mut App,
8106 ) {
8107 if let Some(cursor_name) = cursor_name {
8108 let bounds = self.bounds(origin);
8109 let text_size = self.line_height / 1.5;
8110
8111 let name_origin = if cursor_name.is_top_row {
8112 point(bounds.right() - px(1.), bounds.top())
8113 } else {
8114 match self.shape {
8115 CursorShape::Bar => point(
8116 bounds.right() - px(2.),
8117 bounds.top() - text_size / 2. - px(1.),
8118 ),
8119 _ => point(
8120 bounds.right() - px(1.),
8121 bounds.top() - text_size / 2. - px(1.),
8122 ),
8123 }
8124 };
8125 let mut name_element = div()
8126 .bg(self.color)
8127 .text_size(text_size)
8128 .px_0p5()
8129 .line_height(text_size + px(2.))
8130 .text_color(cursor_name.color)
8131 .child(cursor_name.string.clone())
8132 .into_any_element();
8133
8134 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8135
8136 self.cursor_name = Some(name_element);
8137 }
8138 }
8139
8140 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8141 let bounds = self.bounds(origin);
8142
8143 //Draw background or border quad
8144 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8145 outline(bounds, self.color)
8146 } else {
8147 fill(bounds, self.color)
8148 };
8149
8150 if let Some(name) = &mut self.cursor_name {
8151 name.paint(window, cx);
8152 }
8153
8154 window.paint_quad(cursor);
8155
8156 if let Some(block_text) = &self.block_text {
8157 block_text
8158 .paint(self.origin + origin, self.line_height, window, cx)
8159 .log_err();
8160 }
8161 }
8162
8163 pub fn shape(&self) -> CursorShape {
8164 self.shape
8165 }
8166}
8167
8168#[derive(Debug)]
8169pub struct HighlightedRange {
8170 pub start_y: Pixels,
8171 pub line_height: Pixels,
8172 pub lines: Vec<HighlightedRangeLine>,
8173 pub color: Hsla,
8174 pub corner_radius: Pixels,
8175}
8176
8177#[derive(Debug)]
8178pub struct HighlightedRangeLine {
8179 pub start_x: Pixels,
8180 pub end_x: Pixels,
8181}
8182
8183impl HighlightedRange {
8184 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8185 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8186 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8187 self.paint_lines(
8188 self.start_y + self.line_height,
8189 &self.lines[1..],
8190 bounds,
8191 window,
8192 );
8193 } else {
8194 self.paint_lines(self.start_y, &self.lines, bounds, window);
8195 }
8196 }
8197
8198 fn paint_lines(
8199 &self,
8200 start_y: Pixels,
8201 lines: &[HighlightedRangeLine],
8202 _bounds: Bounds<Pixels>,
8203 window: &mut Window,
8204 ) {
8205 if lines.is_empty() {
8206 return;
8207 }
8208
8209 let first_line = lines.first().unwrap();
8210 let last_line = lines.last().unwrap();
8211
8212 let first_top_left = point(first_line.start_x, start_y);
8213 let first_top_right = point(first_line.end_x, start_y);
8214
8215 let curve_height = point(Pixels::ZERO, self.corner_radius);
8216 let curve_width = |start_x: Pixels, end_x: Pixels| {
8217 let max = (end_x - start_x) / 2.;
8218 let width = if max < self.corner_radius {
8219 max
8220 } else {
8221 self.corner_radius
8222 };
8223
8224 point(width, Pixels::ZERO)
8225 };
8226
8227 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8228 let mut builder = gpui::PathBuilder::fill();
8229 builder.curve_to(first_top_right + curve_height, first_top_right);
8230
8231 let mut iter = lines.iter().enumerate().peekable();
8232 while let Some((ix, line)) = iter.next() {
8233 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8234
8235 if let Some((_, next_line)) = iter.peek() {
8236 let next_top_right = point(next_line.end_x, bottom_right.y);
8237
8238 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8239 Ordering::Equal => {
8240 builder.line_to(bottom_right);
8241 }
8242 Ordering::Less => {
8243 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8244 builder.line_to(bottom_right - curve_height);
8245 if self.corner_radius > Pixels::ZERO {
8246 builder.curve_to(bottom_right - curve_width, bottom_right);
8247 }
8248 builder.line_to(next_top_right + curve_width);
8249 if self.corner_radius > Pixels::ZERO {
8250 builder.curve_to(next_top_right + curve_height, next_top_right);
8251 }
8252 }
8253 Ordering::Greater => {
8254 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8255 builder.line_to(bottom_right - curve_height);
8256 if self.corner_radius > Pixels::ZERO {
8257 builder.curve_to(bottom_right + curve_width, bottom_right);
8258 }
8259 builder.line_to(next_top_right - curve_width);
8260 if self.corner_radius > Pixels::ZERO {
8261 builder.curve_to(next_top_right + curve_height, next_top_right);
8262 }
8263 }
8264 }
8265 } else {
8266 let curve_width = curve_width(line.start_x, line.end_x);
8267 builder.line_to(bottom_right - curve_height);
8268 if self.corner_radius > Pixels::ZERO {
8269 builder.curve_to(bottom_right - curve_width, bottom_right);
8270 }
8271
8272 let bottom_left = point(line.start_x, bottom_right.y);
8273 builder.line_to(bottom_left + curve_width);
8274 if self.corner_radius > Pixels::ZERO {
8275 builder.curve_to(bottom_left - curve_height, bottom_left);
8276 }
8277 }
8278 }
8279
8280 if first_line.start_x > last_line.start_x {
8281 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8282 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8283 builder.line_to(second_top_left + curve_height);
8284 if self.corner_radius > Pixels::ZERO {
8285 builder.curve_to(second_top_left + curve_width, second_top_left);
8286 }
8287 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8288 builder.line_to(first_bottom_left - curve_width);
8289 if self.corner_radius > Pixels::ZERO {
8290 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8291 }
8292 }
8293
8294 builder.line_to(first_top_left + curve_height);
8295 if self.corner_radius > Pixels::ZERO {
8296 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8297 }
8298 builder.line_to(first_top_right - top_curve_width);
8299
8300 if let Ok(path) = builder.build() {
8301 window.paint_path(path, self.color);
8302 }
8303 }
8304}
8305
8306enum CursorPopoverType {
8307 CodeContextMenu,
8308 EditPrediction,
8309}
8310
8311pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8312 (delta.pow(1.5) / 100.0).into()
8313}
8314
8315fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8316 (delta.pow(1.2) / 300.0).into()
8317}
8318
8319pub fn register_action<T: Action>(
8320 editor: &Entity<Editor>,
8321 window: &mut Window,
8322 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8323) {
8324 let editor = editor.clone();
8325 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8326 let action = action.downcast_ref().unwrap();
8327 if phase == DispatchPhase::Bubble {
8328 editor.update(cx, |editor, cx| {
8329 listener(editor, action, window, cx);
8330 })
8331 }
8332 })
8333}
8334
8335fn compute_auto_height_layout(
8336 editor: &mut Editor,
8337 max_lines: usize,
8338 max_line_number_width: Pixels,
8339 known_dimensions: Size<Option<Pixels>>,
8340 available_width: AvailableSpace,
8341 window: &mut Window,
8342 cx: &mut Context<Editor>,
8343) -> Option<Size<Pixels>> {
8344 let width = known_dimensions.width.or({
8345 if let AvailableSpace::Definite(available_width) = available_width {
8346 Some(available_width)
8347 } else {
8348 None
8349 }
8350 })?;
8351 if let Some(height) = known_dimensions.height {
8352 return Some(size(width, height));
8353 }
8354
8355 let style = editor.style.as_ref().unwrap();
8356 let font_id = window.text_system().resolve_font(&style.text.font());
8357 let font_size = style.text.font_size.to_pixels(window.rem_size());
8358 let line_height = style.text.line_height_in_pixels(window.rem_size());
8359 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8360
8361 let mut snapshot = editor.snapshot(window, cx);
8362 let gutter_dimensions = snapshot
8363 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8364 .unwrap_or_default();
8365
8366 editor.gutter_dimensions = gutter_dimensions;
8367 let text_width = width - gutter_dimensions.width;
8368 let overscroll = size(em_width, px(0.));
8369
8370 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8371 if editor.set_wrap_width(Some(editor_width), cx) {
8372 snapshot = editor.snapshot(window, cx);
8373 }
8374
8375 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8376 let height = scroll_height
8377 .max(line_height)
8378 .min(line_height * max_lines as f32);
8379
8380 Some(size(width, height))
8381}
8382
8383#[cfg(test)]
8384mod tests {
8385 use super::*;
8386 use crate::{
8387 display_map::{BlockPlacement, BlockProperties},
8388 editor_tests::{init_test, update_test_language_settings},
8389 Editor, MultiBuffer,
8390 };
8391 use gpui::{TestAppContext, VisualTestContext};
8392 use language::language_settings;
8393 use log::info;
8394 use similar::DiffableStr;
8395 use std::num::NonZeroU32;
8396 use util::test::sample_text;
8397
8398 #[gpui::test]
8399 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8400 init_test(cx, |_| {});
8401 let window = cx.add_window(|window, cx| {
8402 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8403 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8404 });
8405
8406 let editor = window.root(cx).unwrap();
8407 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8408 let line_height = window
8409 .update(cx, |_, window, _| {
8410 style.text.line_height_in_pixels(window.rem_size())
8411 })
8412 .unwrap();
8413 let element = EditorElement::new(&editor, style);
8414 let snapshot = window
8415 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8416 .unwrap();
8417
8418 let layouts = cx
8419 .update_window(*window, |_, window, cx| {
8420 element.layout_line_numbers(
8421 None,
8422 GutterDimensions {
8423 left_padding: Pixels::ZERO,
8424 right_padding: Pixels::ZERO,
8425 width: px(30.0),
8426 margin: Pixels::ZERO,
8427 git_blame_entries_width: None,
8428 },
8429 line_height,
8430 gpui::Point::default(),
8431 DisplayRow(0)..DisplayRow(6),
8432 &(0..6)
8433 .map(|row| RowInfo {
8434 buffer_row: Some(row),
8435 ..Default::default()
8436 })
8437 .collect::<Vec<_>>(),
8438 Some(DisplayPoint::new(DisplayRow(0), 0)),
8439 &snapshot,
8440 window,
8441 cx,
8442 )
8443 })
8444 .unwrap();
8445 assert_eq!(layouts.len(), 6);
8446
8447 let relative_rows = window
8448 .update(cx, |editor, window, cx| {
8449 let snapshot = editor.snapshot(window, cx);
8450 element.calculate_relative_line_numbers(
8451 &snapshot,
8452 &(DisplayRow(0)..DisplayRow(6)),
8453 Some(DisplayRow(3)),
8454 )
8455 })
8456 .unwrap();
8457 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8458 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8459 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8460 // current line has no relative number
8461 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8462 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8463
8464 // works if cursor is before screen
8465 let relative_rows = window
8466 .update(cx, |editor, window, cx| {
8467 let snapshot = editor.snapshot(window, cx);
8468 element.calculate_relative_line_numbers(
8469 &snapshot,
8470 &(DisplayRow(3)..DisplayRow(6)),
8471 Some(DisplayRow(1)),
8472 )
8473 })
8474 .unwrap();
8475 assert_eq!(relative_rows.len(), 3);
8476 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8477 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8478 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8479
8480 // works if cursor is after screen
8481 let relative_rows = window
8482 .update(cx, |editor, window, cx| {
8483 let snapshot = editor.snapshot(window, cx);
8484 element.calculate_relative_line_numbers(
8485 &snapshot,
8486 &(DisplayRow(0)..DisplayRow(3)),
8487 Some(DisplayRow(6)),
8488 )
8489 })
8490 .unwrap();
8491 assert_eq!(relative_rows.len(), 3);
8492 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8493 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8494 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8495 }
8496
8497 #[gpui::test]
8498 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8499 init_test(cx, |_| {});
8500
8501 let window = cx.add_window(|window, cx| {
8502 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8503 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8504 });
8505 let cx = &mut VisualTestContext::from_window(*window, cx);
8506 let editor = window.root(cx).unwrap();
8507 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8508
8509 window
8510 .update(cx, |editor, window, cx| {
8511 editor.cursor_shape = CursorShape::Block;
8512 editor.change_selections(None, window, cx, |s| {
8513 s.select_ranges([
8514 Point::new(0, 0)..Point::new(1, 0),
8515 Point::new(3, 2)..Point::new(3, 3),
8516 Point::new(5, 6)..Point::new(6, 0),
8517 ]);
8518 });
8519 })
8520 .unwrap();
8521
8522 let (_, state) = cx.draw(
8523 point(px(500.), px(500.)),
8524 size(px(500.), px(500.)),
8525 |_, _| EditorElement::new(&editor, style),
8526 );
8527
8528 assert_eq!(state.selections.len(), 1);
8529 let local_selections = &state.selections[0].1;
8530 assert_eq!(local_selections.len(), 3);
8531 // moves cursor back one line
8532 assert_eq!(
8533 local_selections[0].head,
8534 DisplayPoint::new(DisplayRow(0), 6)
8535 );
8536 assert_eq!(
8537 local_selections[0].range,
8538 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8539 );
8540
8541 // moves cursor back one column
8542 assert_eq!(
8543 local_selections[1].range,
8544 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8545 );
8546 assert_eq!(
8547 local_selections[1].head,
8548 DisplayPoint::new(DisplayRow(3), 2)
8549 );
8550
8551 // leaves cursor on the max point
8552 assert_eq!(
8553 local_selections[2].range,
8554 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8555 );
8556 assert_eq!(
8557 local_selections[2].head,
8558 DisplayPoint::new(DisplayRow(6), 0)
8559 );
8560
8561 // active lines does not include 1 (even though the range of the selection does)
8562 assert_eq!(
8563 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8564 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8565 );
8566
8567 // multi-buffer support
8568 // in DisplayPoint coordinates, this is what we're dealing with:
8569 // 0: [[file
8570 // 1: header
8571 // 2: section]]
8572 // 3: aaaaaa
8573 // 4: bbbbbb
8574 // 5: cccccc
8575 // 6:
8576 // 7: [[footer]]
8577 // 8: [[header]]
8578 // 9: ffffff
8579 // 10: gggggg
8580 // 11: hhhhhh
8581 // 12:
8582 // 13: [[footer]]
8583 // 14: [[file
8584 // 15: header
8585 // 16: section]]
8586 // 17: bbbbbb
8587 // 18: cccccc
8588 // 19: dddddd
8589 // 20: [[footer]]
8590 let window = cx.add_window(|window, cx| {
8591 let buffer = MultiBuffer::build_multi(
8592 [
8593 (
8594 &(sample_text(8, 6, 'a') + "\n"),
8595 vec![
8596 Point::new(0, 0)..Point::new(3, 0),
8597 Point::new(4, 0)..Point::new(7, 0),
8598 ],
8599 ),
8600 (
8601 &(sample_text(8, 6, 'a') + "\n"),
8602 vec![Point::new(1, 0)..Point::new(3, 0)],
8603 ),
8604 ],
8605 cx,
8606 );
8607 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8608 });
8609 let editor = window.root(cx).unwrap();
8610 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8611 let _state = window.update(cx, |editor, window, cx| {
8612 editor.cursor_shape = CursorShape::Block;
8613 editor.change_selections(None, window, cx, |s| {
8614 s.select_display_ranges([
8615 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8616 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8617 ]);
8618 });
8619 });
8620
8621 let (_, state) = cx.draw(
8622 point(px(500.), px(500.)),
8623 size(px(500.), px(500.)),
8624 |_, _| EditorElement::new(&editor, style),
8625 );
8626 assert_eq!(state.selections.len(), 1);
8627 let local_selections = &state.selections[0].1;
8628 assert_eq!(local_selections.len(), 2);
8629
8630 // moves cursor on excerpt boundary back a line
8631 // and doesn't allow selection to bleed through
8632 assert_eq!(
8633 local_selections[0].range,
8634 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8635 );
8636 assert_eq!(
8637 local_selections[0].head,
8638 DisplayPoint::new(DisplayRow(6), 0)
8639 );
8640 // moves cursor on buffer boundary back two lines
8641 // and doesn't allow selection to bleed through
8642 assert_eq!(
8643 local_selections[1].range,
8644 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8645 );
8646 assert_eq!(
8647 local_selections[1].head,
8648 DisplayPoint::new(DisplayRow(12), 0)
8649 );
8650 }
8651
8652 #[gpui::test]
8653 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8654 init_test(cx, |_| {});
8655
8656 let window = cx.add_window(|window, cx| {
8657 let buffer = MultiBuffer::build_simple("", cx);
8658 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8659 });
8660 let cx = &mut VisualTestContext::from_window(*window, cx);
8661 let editor = window.root(cx).unwrap();
8662 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8663 window
8664 .update(cx, |editor, window, cx| {
8665 editor.set_placeholder_text("hello", cx);
8666 editor.insert_blocks(
8667 [BlockProperties {
8668 style: BlockStyle::Fixed,
8669 placement: BlockPlacement::Above(Anchor::min()),
8670 height: 3,
8671 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8672 priority: 0,
8673 }],
8674 None,
8675 cx,
8676 );
8677
8678 // Blur the editor so that it displays placeholder text.
8679 window.blur();
8680 })
8681 .unwrap();
8682
8683 let (_, state) = cx.draw(
8684 point(px(500.), px(500.)),
8685 size(px(500.), px(500.)),
8686 |_, _| EditorElement::new(&editor, style),
8687 );
8688 assert_eq!(state.position_map.line_layouts.len(), 4);
8689 assert_eq!(state.line_numbers.len(), 1);
8690 assert_eq!(
8691 state
8692 .line_numbers
8693 .get(&MultiBufferRow(0))
8694 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8695 Some("1")
8696 );
8697 }
8698
8699 #[gpui::test]
8700 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8701 const TAB_SIZE: u32 = 4;
8702
8703 let input_text = "\t \t|\t| a b";
8704 let expected_invisibles = vec![
8705 Invisible::Tab {
8706 line_start_offset: 0,
8707 line_end_offset: TAB_SIZE as usize,
8708 },
8709 Invisible::Whitespace {
8710 line_offset: TAB_SIZE as usize,
8711 },
8712 Invisible::Tab {
8713 line_start_offset: TAB_SIZE as usize + 1,
8714 line_end_offset: TAB_SIZE as usize * 2,
8715 },
8716 Invisible::Tab {
8717 line_start_offset: TAB_SIZE as usize * 2 + 1,
8718 line_end_offset: TAB_SIZE as usize * 3,
8719 },
8720 Invisible::Whitespace {
8721 line_offset: TAB_SIZE as usize * 3 + 1,
8722 },
8723 Invisible::Whitespace {
8724 line_offset: TAB_SIZE as usize * 3 + 3,
8725 },
8726 ];
8727 assert_eq!(
8728 expected_invisibles.len(),
8729 input_text
8730 .chars()
8731 .filter(|initial_char| initial_char.is_whitespace())
8732 .count(),
8733 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8734 );
8735
8736 for show_line_numbers in [true, false] {
8737 init_test(cx, |s| {
8738 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8739 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8740 });
8741
8742 let actual_invisibles = collect_invisibles_from_new_editor(
8743 cx,
8744 EditorMode::Full,
8745 input_text,
8746 px(500.0),
8747 show_line_numbers,
8748 );
8749
8750 assert_eq!(expected_invisibles, actual_invisibles);
8751 }
8752 }
8753
8754 #[gpui::test]
8755 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8756 init_test(cx, |s| {
8757 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8758 s.defaults.tab_size = NonZeroU32::new(4);
8759 });
8760
8761 for editor_mode_without_invisibles in [
8762 EditorMode::SingleLine { auto_width: false },
8763 EditorMode::AutoHeight { max_lines: 100 },
8764 ] {
8765 for show_line_numbers in [true, false] {
8766 let invisibles = collect_invisibles_from_new_editor(
8767 cx,
8768 editor_mode_without_invisibles,
8769 "\t\t\t| | a b",
8770 px(500.0),
8771 show_line_numbers,
8772 );
8773 assert!(invisibles.is_empty(),
8774 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8775 }
8776 }
8777 }
8778
8779 #[gpui::test]
8780 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8781 let tab_size = 4;
8782 let input_text = "a\tbcd ".repeat(9);
8783 let repeated_invisibles = [
8784 Invisible::Tab {
8785 line_start_offset: 1,
8786 line_end_offset: tab_size as usize,
8787 },
8788 Invisible::Whitespace {
8789 line_offset: tab_size as usize + 3,
8790 },
8791 Invisible::Whitespace {
8792 line_offset: tab_size as usize + 4,
8793 },
8794 Invisible::Whitespace {
8795 line_offset: tab_size as usize + 5,
8796 },
8797 Invisible::Whitespace {
8798 line_offset: tab_size as usize + 6,
8799 },
8800 Invisible::Whitespace {
8801 line_offset: tab_size as usize + 7,
8802 },
8803 ];
8804 let expected_invisibles = std::iter::once(repeated_invisibles)
8805 .cycle()
8806 .take(9)
8807 .flatten()
8808 .collect::<Vec<_>>();
8809 assert_eq!(
8810 expected_invisibles.len(),
8811 input_text
8812 .chars()
8813 .filter(|initial_char| initial_char.is_whitespace())
8814 .count(),
8815 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8816 );
8817 info!("Expected invisibles: {expected_invisibles:?}");
8818
8819 init_test(cx, |_| {});
8820
8821 // Put the same string with repeating whitespace pattern into editors of various size,
8822 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8823 let resize_step = 10.0;
8824 let mut editor_width = 200.0;
8825 while editor_width <= 1000.0 {
8826 for show_line_numbers in [true, false] {
8827 update_test_language_settings(cx, |s| {
8828 s.defaults.tab_size = NonZeroU32::new(tab_size);
8829 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8830 s.defaults.preferred_line_length = Some(editor_width as u32);
8831 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8832 });
8833
8834 let actual_invisibles = collect_invisibles_from_new_editor(
8835 cx,
8836 EditorMode::Full,
8837 &input_text,
8838 px(editor_width),
8839 show_line_numbers,
8840 );
8841
8842 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8843 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8844 let mut i = 0;
8845 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8846 i = actual_index;
8847 match expected_invisibles.get(i) {
8848 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8849 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8850 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8851 _ => {
8852 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8853 }
8854 },
8855 None => {
8856 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8857 }
8858 }
8859 }
8860 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8861 assert!(
8862 missing_expected_invisibles.is_empty(),
8863 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8864 );
8865
8866 editor_width += resize_step;
8867 }
8868 }
8869 }
8870
8871 fn collect_invisibles_from_new_editor(
8872 cx: &mut TestAppContext,
8873 editor_mode: EditorMode,
8874 input_text: &str,
8875 editor_width: Pixels,
8876 show_line_numbers: bool,
8877 ) -> Vec<Invisible> {
8878 info!(
8879 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8880 editor_width.0
8881 );
8882 let window = cx.add_window(|window, cx| {
8883 let buffer = MultiBuffer::build_simple(input_text, cx);
8884 Editor::new(editor_mode, buffer, None, true, window, cx)
8885 });
8886 let cx = &mut VisualTestContext::from_window(*window, cx);
8887 let editor = window.root(cx).unwrap();
8888
8889 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8890 window
8891 .update(cx, |editor, _, cx| {
8892 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8893 editor.set_wrap_width(Some(editor_width), cx);
8894 editor.set_show_line_numbers(show_line_numbers, cx);
8895 })
8896 .unwrap();
8897 let (_, state) = cx.draw(
8898 point(px(500.), px(500.)),
8899 size(px(500.), px(500.)),
8900 |_, _| EditorElement::new(&editor, style),
8901 );
8902 state
8903 .position_map
8904 .line_layouts
8905 .iter()
8906 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8907 .cloned()
8908 .collect()
8909 }
8910}
8911
8912fn diff_hunk_controls(
8913 row: u32,
8914 hunk_range: Range<Anchor>,
8915 line_height: Pixels,
8916 editor: &Entity<Editor>,
8917 cx: &mut App,
8918) -> AnyElement {
8919 h_flex()
8920 .h(line_height)
8921 .mr_1()
8922 .gap_1()
8923 .px_1()
8924 .pb_1()
8925 .border_b_1()
8926 .border_color(cx.theme().colors().border_variant)
8927 .rounded_b_lg()
8928 .bg(cx.theme().colors().editor_background)
8929 .gap_1()
8930 .child(
8931 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8932 .shape(IconButtonShape::Square)
8933 .icon_size(IconSize::Small)
8934 // .disabled(!has_multiple_hunks)
8935 .tooltip({
8936 let focus_handle = editor.focus_handle(cx);
8937 move |window, cx| {
8938 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8939 }
8940 })
8941 .on_click({
8942 let editor = editor.clone();
8943 move |_event, window, cx| {
8944 editor.update(cx, |editor, cx| {
8945 let snapshot = editor.snapshot(window, cx);
8946 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8947 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8948 editor.expand_selected_diff_hunks(cx);
8949 });
8950 }
8951 }),
8952 )
8953 .child(
8954 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8955 .shape(IconButtonShape::Square)
8956 .icon_size(IconSize::Small)
8957 // .disabled(!has_multiple_hunks)
8958 .tooltip({
8959 let focus_handle = editor.focus_handle(cx);
8960 move |window, cx| {
8961 Tooltip::for_action_in(
8962 "Previous Hunk",
8963 &GoToPrevHunk,
8964 &focus_handle,
8965 window,
8966 cx,
8967 )
8968 }
8969 })
8970 .on_click({
8971 let editor = editor.clone();
8972 move |_event, window, cx| {
8973 editor.update(cx, |editor, cx| {
8974 let snapshot = editor.snapshot(window, cx);
8975 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8976 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8977 editor.expand_selected_diff_hunks(cx);
8978 });
8979 }
8980 }),
8981 )
8982 .child(
8983 IconButton::new("discard", IconName::Undo)
8984 .shape(IconButtonShape::Square)
8985 .icon_size(IconSize::Small)
8986 .tooltip({
8987 let focus_handle = editor.focus_handle(cx);
8988 move |window, cx| {
8989 Tooltip::for_action_in(
8990 "Discard Hunk",
8991 &RevertSelectedHunks,
8992 &focus_handle,
8993 window,
8994 cx,
8995 )
8996 }
8997 })
8998 .on_click({
8999 let editor = editor.clone();
9000 move |_event, window, cx| {
9001 editor.update(cx, |editor, cx| {
9002 let snapshot = editor.snapshot(window, cx);
9003 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9004 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
9005 });
9006 }
9007 }),
9008 )
9009 .into_any_element()
9010}