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 ..Default::default()
3280 },
3281 key: "tab".to_string(),
3282 key_char: None,
3283 });
3284 }
3285
3286 #[cfg(not(target_os = "macos"))]
3287 {
3288 accept_keystroke = Some(Keystroke {
3289 modifiers: gpui::Modifiers {
3290 alt: true,
3291 ..Default::default()
3292 },
3293 key: "enter".to_string(),
3294 key_char: None,
3295 });
3296 }
3297
3298 self.editor.update(cx, move |editor, cx| {
3299 let mut element = editor.render_edit_prediction_cursor_popover(
3300 min_width,
3301 max_width,
3302 cursor_point,
3303 &line_layouts,
3304 style,
3305 accept_keystroke.as_ref()?,
3306 window,
3307 cx,
3308 )?;
3309 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3310 Some((CursorPopoverType::EditPrediction, element, size))
3311 })
3312 } else {
3313 None
3314 };
3315 vec![edit_prediction, context_menu]
3316 .into_iter()
3317 .flatten()
3318 .collect::<Vec<_>>()
3319 },
3320 ) else {
3321 return;
3322 };
3323
3324 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3325 .iter()
3326 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3327 else {
3328 return;
3329 };
3330 let last_ix = laid_out_popovers.len() - 1;
3331 let menu_is_last = menu_ix == last_ix;
3332 let first_popover_bounds = laid_out_popovers[0].1;
3333 let last_popover_bounds = laid_out_popovers[last_ix].1;
3334
3335 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3336 // right, and otherwise it goes below or to the right.
3337 let mut target_bounds = Bounds::from_corners(
3338 first_popover_bounds.origin,
3339 last_popover_bounds.bottom_right(),
3340 );
3341 target_bounds.size.width = menu_bounds.size.width;
3342
3343 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3344 // based on this is preferred for layout stability.
3345 let mut max_target_bounds = target_bounds;
3346 max_target_bounds.size.height = max_height;
3347 if y_flipped {
3348 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3349 }
3350
3351 // Add spacing around `target_bounds` and `max_target_bounds`.
3352 let mut extend_amount = Edges::all(MENU_GAP);
3353 if y_flipped {
3354 extend_amount.bottom = line_height;
3355 } else {
3356 extend_amount.top = line_height;
3357 }
3358 let target_bounds = target_bounds.extend(extend_amount);
3359 let max_target_bounds = max_target_bounds.extend(extend_amount);
3360
3361 let must_place_above_or_below =
3362 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3363 laid_out_popovers[menu_ix + 1..]
3364 .iter()
3365 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3366 } else {
3367 false
3368 };
3369
3370 self.layout_context_menu_aside(
3371 y_flipped,
3372 *menu_bounds,
3373 target_bounds,
3374 max_target_bounds,
3375 max_menu_height,
3376 must_place_above_or_below,
3377 text_hitbox,
3378 viewport_bounds,
3379 window,
3380 cx,
3381 );
3382 }
3383
3384 #[allow(clippy::too_many_arguments)]
3385 fn layout_gutter_menu(
3386 &self,
3387 line_height: Pixels,
3388 text_hitbox: &Hitbox,
3389 content_origin: gpui::Point<Pixels>,
3390 scroll_pixel_position: gpui::Point<Pixels>,
3391 gutter_overshoot: Pixels,
3392 window: &mut Window,
3393 cx: &mut App,
3394 ) {
3395 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3396 self.editor.read(cx).context_menu_origin()
3397 else {
3398 return;
3399 };
3400 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3401 // indicator than just a plain first column of the text field.
3402 let target_position = content_origin
3403 + gpui::Point {
3404 x: -gutter_overshoot,
3405 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3406 };
3407 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3408 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3409 let viewport_bounds =
3410 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3411 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3412 ..Default::default()
3413 });
3414 self.layout_popovers_above_or_below_line(
3415 target_position,
3416 line_height,
3417 min_height,
3418 max_height,
3419 text_hitbox,
3420 viewport_bounds,
3421 window,
3422 cx,
3423 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3424 let Some(mut element) =
3425 self.render_context_menu(line_height, height, y_flipped, window, cx)
3426 else {
3427 return vec![];
3428 };
3429 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3430 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3431 },
3432 );
3433 }
3434
3435 #[allow(clippy::too_many_arguments)]
3436 fn layout_popovers_above_or_below_line(
3437 &self,
3438 target_position: gpui::Point<Pixels>,
3439 line_height: Pixels,
3440 min_height: Pixels,
3441 max_height: Pixels,
3442 text_hitbox: &Hitbox,
3443 viewport_bounds: Bounds<Pixels>,
3444 window: &mut Window,
3445 cx: &mut App,
3446 make_sized_popovers: impl FnOnce(
3447 Pixels,
3448 Pixels,
3449 bool,
3450 &mut Window,
3451 &mut App,
3452 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3453 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3454 // If the max height won't fit below and there is more space above, put it above the line.
3455 let bottom_y_when_flipped = target_position.y - line_height;
3456 let available_above = bottom_y_when_flipped - text_hitbox.top();
3457 let available_below = text_hitbox.bottom() - target_position.y;
3458 let y_overflows_below = max_height > available_below;
3459 let mut y_flipped = y_overflows_below && available_above > available_below;
3460 let mut height = cmp::min(
3461 max_height,
3462 if y_flipped {
3463 available_above
3464 } else {
3465 available_below
3466 },
3467 );
3468
3469 // If the min height doesn't fit within text bounds, instead fit within the window.
3470 if height < min_height {
3471 let available_above = bottom_y_when_flipped;
3472 let available_below = viewport_bounds.bottom() - target_position.y;
3473 if available_below > min_height {
3474 y_flipped = false;
3475 height = min_height;
3476 } else if available_above > min_height {
3477 y_flipped = true;
3478 height = min_height;
3479 } else if available_above > available_below {
3480 y_flipped = true;
3481 height = available_above;
3482 } else {
3483 y_flipped = false;
3484 height = available_below;
3485 }
3486 }
3487
3488 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3489
3490 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3491 // for very narrow windows.
3492 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3493 if popovers.is_empty() {
3494 return None;
3495 }
3496
3497 let max_width = popovers
3498 .iter()
3499 .map(|(_, _, size)| size.width)
3500 .max()
3501 .unwrap_or_default();
3502
3503 let mut current_position = gpui::Point {
3504 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3505 // overflow. Include space for the scrollbar.
3506 x: target_position
3507 .x
3508 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3509 y: if y_flipped {
3510 bottom_y_when_flipped
3511 } else {
3512 target_position.y
3513 },
3514 };
3515
3516 let mut laid_out_popovers = popovers
3517 .into_iter()
3518 .map(|(popover_type, element, size)| {
3519 if y_flipped {
3520 current_position.y -= size.height;
3521 }
3522 let position = current_position;
3523 window.defer_draw(element, current_position, 1);
3524 if !y_flipped {
3525 current_position.y += size.height + MENU_GAP;
3526 } else {
3527 current_position.y -= MENU_GAP;
3528 }
3529 (popover_type, Bounds::new(position, size))
3530 })
3531 .collect::<Vec<_>>();
3532
3533 if y_flipped {
3534 laid_out_popovers.reverse();
3535 }
3536
3537 Some((laid_out_popovers, y_flipped))
3538 }
3539
3540 #[allow(clippy::too_many_arguments)]
3541 fn layout_context_menu_aside(
3542 &self,
3543 y_flipped: bool,
3544 menu_bounds: Bounds<Pixels>,
3545 target_bounds: Bounds<Pixels>,
3546 max_target_bounds: Bounds<Pixels>,
3547 max_height: Pixels,
3548 must_place_above_or_below: bool,
3549 text_hitbox: &Hitbox,
3550 viewport_bounds: Bounds<Pixels>,
3551 window: &mut Window,
3552 cx: &mut App,
3553 ) {
3554 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3555 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3556 && !must_place_above_or_below
3557 {
3558 let max_width = cmp::min(
3559 available_within_viewport.right - px(1.),
3560 MENU_ASIDE_MAX_WIDTH,
3561 );
3562 let Some(mut aside) =
3563 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3564 else {
3565 return;
3566 };
3567 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3568 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3569 Some((aside, right_position))
3570 } else {
3571 let max_size = size(
3572 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3573 // won't be needed here.
3574 cmp::min(
3575 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3576 viewport_bounds.right(),
3577 ),
3578 cmp::min(
3579 max_height,
3580 cmp::max(
3581 available_within_viewport.top,
3582 available_within_viewport.bottom,
3583 ),
3584 ) - POPOVER_Y_PADDING,
3585 );
3586 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3587 return;
3588 };
3589 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3590
3591 let top_position = point(
3592 menu_bounds.origin.x,
3593 target_bounds.top() - actual_size.height,
3594 );
3595 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3596
3597 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3598 // Prefer to fit on the same side of the line as the menu, then on the other side of
3599 // the line.
3600 if !y_flipped && wanted.height < available.bottom {
3601 Some(bottom_position)
3602 } else if !y_flipped && wanted.height < available.top {
3603 Some(top_position)
3604 } else if y_flipped && wanted.height < available.top {
3605 Some(top_position)
3606 } else if y_flipped && wanted.height < available.bottom {
3607 Some(bottom_position)
3608 } else {
3609 None
3610 }
3611 };
3612
3613 // Prefer choosing a direction using max sizes rather than actual size for stability.
3614 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3615 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3616 let aside_position = fit_within(available_within_text, wanted)
3617 // Fallback: fit max size in window.
3618 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3619 // Fallback: fit actual size in window.
3620 .or_else(|| fit_within(available_within_viewport, actual_size));
3621
3622 aside_position.map(|position| (aside, position))
3623 };
3624
3625 // Skip drawing if it doesn't fit anywhere.
3626 if let Some((aside, position)) = positioned_aside {
3627 window.defer_draw(aside, position, 1);
3628 }
3629 }
3630
3631 fn render_context_menu(
3632 &self,
3633 line_height: Pixels,
3634 height: Pixels,
3635 y_flipped: bool,
3636 window: &mut Window,
3637 cx: &mut App,
3638 ) -> Option<AnyElement> {
3639 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3640 self.editor.update(cx, |editor, cx| {
3641 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3642 })
3643 }
3644
3645 fn render_context_menu_aside(
3646 &self,
3647 max_size: Size<Pixels>,
3648
3649 cx: &mut App,
3650 ) -> Option<AnyElement> {
3651 if max_size.width < px(100.) || max_size.height < px(12.) {
3652 None
3653 } else {
3654 self.editor.update(cx, |editor, cx| {
3655 editor.render_context_menu_aside(&self.style, max_size, cx)
3656 })
3657 }
3658 }
3659
3660 #[allow(clippy::too_many_arguments)]
3661 fn layout_inline_completion_popover(
3662 &self,
3663 text_bounds: &Bounds<Pixels>,
3664 editor_snapshot: &EditorSnapshot,
3665 visible_row_range: Range<DisplayRow>,
3666 scroll_top: f32,
3667 scroll_bottom: f32,
3668 line_layouts: &[LineWithInvisibles],
3669 line_height: Pixels,
3670 scroll_pixel_position: gpui::Point<Pixels>,
3671 newest_selection_head: Option<DisplayPoint>,
3672 editor_width: Pixels,
3673 style: &EditorStyle,
3674 window: &mut Window,
3675 cx: &mut App,
3676 ) -> Option<AnyElement> {
3677 const PADDING_X: Pixels = Pixels(24.);
3678 const PADDING_Y: Pixels = Pixels(2.);
3679
3680 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3681
3682 match &active_inline_completion.completion {
3683 InlineCompletion::Move { target, .. } => {
3684 let previewing = false;
3685 let target_display_point = target.to_display_point(editor_snapshot);
3686 if target_display_point.row().as_f32() < scroll_top {
3687 let mut element = inline_completion_accept_indicator(
3688 "Jump to Edit",
3689 Some(IconName::ArrowUp),
3690 previewing,
3691 self.editor.focus_handle(cx),
3692 window,
3693 cx,
3694 );
3695 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3696 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3697 element.prepaint_at(text_bounds.origin + offset, window, cx);
3698 Some(element)
3699 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3700 let mut element = inline_completion_accept_indicator(
3701 "Jump to Edit",
3702 Some(IconName::ArrowDown),
3703 previewing,
3704 self.editor.focus_handle(cx),
3705 window,
3706 cx,
3707 );
3708 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3709 let offset = point(
3710 (text_bounds.size.width - size.width) / 2.,
3711 text_bounds.size.height - size.height - PADDING_Y,
3712 );
3713 element.prepaint_at(text_bounds.origin + offset, window, cx);
3714 Some(element)
3715 } else {
3716 let mut element = inline_completion_accept_indicator(
3717 "Jump to Edit",
3718 None,
3719 previewing,
3720 self.editor.focus_handle(cx),
3721 window,
3722 cx,
3723 );
3724
3725 let target_line_end = DisplayPoint::new(
3726 target_display_point.row(),
3727 editor_snapshot.line_len(target_display_point.row()),
3728 );
3729 let origin = self.editor.update(cx, |editor, _cx| {
3730 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3731 })?;
3732 element.prepaint_as_root(
3733 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3734 AvailableSpace::min_size(),
3735 window,
3736 cx,
3737 );
3738 Some(element)
3739 }
3740 }
3741 InlineCompletion::Edit {
3742 edits,
3743 edit_preview,
3744 display_mode,
3745 snapshot,
3746 } => {
3747 if self.editor.read(cx).has_active_completions_menu() {
3748 return None;
3749 }
3750
3751 let edit_start = edits
3752 .first()
3753 .unwrap()
3754 .0
3755 .start
3756 .to_display_point(editor_snapshot);
3757 let edit_end = edits
3758 .last()
3759 .unwrap()
3760 .0
3761 .end
3762 .to_display_point(editor_snapshot);
3763
3764 let is_visible = visible_row_range.contains(&edit_start.row())
3765 || visible_row_range.contains(&edit_end.row());
3766 if !is_visible {
3767 return None;
3768 }
3769
3770 match display_mode {
3771 EditDisplayMode::TabAccept(previewing) => {
3772 let previewing = *previewing;
3773 let range = &edits.first()?.0;
3774 let target_display_point = range.end.to_display_point(editor_snapshot);
3775
3776 let target_line_end = DisplayPoint::new(
3777 target_display_point.row(),
3778 editor_snapshot.line_len(target_display_point.row()),
3779 );
3780 let origin = self.editor.update(cx, |editor, _cx| {
3781 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3782 })?;
3783
3784 let mut element = inline_completion_accept_indicator(
3785 "Accept",
3786 None,
3787 previewing,
3788 self.editor.focus_handle(cx),
3789 window,
3790 cx,
3791 );
3792
3793 element.prepaint_as_root(
3794 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3795 AvailableSpace::min_size(),
3796 window,
3797 cx,
3798 );
3799
3800 return Some(element);
3801 }
3802 EditDisplayMode::Inline => return None,
3803 EditDisplayMode::DiffPopover => {}
3804 }
3805
3806 let highlighted_edits = crate::inline_completion_edit_text(
3807 &snapshot,
3808 edits,
3809 edit_preview.as_ref()?,
3810 false,
3811 cx,
3812 );
3813
3814 let line_count = highlighted_edits.text.lines().count();
3815
3816 let longest_row =
3817 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3818 let longest_line_width = if visible_row_range.contains(&longest_row) {
3819 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3820 } else {
3821 layout_line(
3822 longest_row,
3823 editor_snapshot,
3824 style,
3825 editor_width,
3826 |_| false,
3827 window,
3828 cx,
3829 )
3830 .width
3831 };
3832
3833 let styled_text = highlighted_edits.to_styled_text(&style.text);
3834
3835 let mut element = div()
3836 .bg(cx.theme().colors().editor_background)
3837 .border_1()
3838 .border_color(cx.theme().colors().border)
3839 .rounded_md()
3840 .child(styled_text)
3841 .into_any();
3842
3843 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3844 .extend(Edges {
3845 right: -Self::SCROLLBAR_WIDTH,
3846 ..Default::default()
3847 });
3848
3849 let x_after_longest =
3850 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3851
3852 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3853
3854 // Fully visible if it can be displayed within the window (allow overlapping other
3855 // panes). However, this is only allowed if the popover starts within text_bounds.
3856 let is_fully_visible = x_after_longest < text_bounds.right()
3857 && x_after_longest + element_bounds.width < viewport_bounds.right();
3858
3859 let origin = if is_fully_visible {
3860 point(
3861 x_after_longest,
3862 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3863 - scroll_pixel_position.y,
3864 )
3865 } else {
3866 // Avoid overlapping both the edited rows and the user's cursor.
3867 let target_above = DisplayRow(
3868 edit_start
3869 .row()
3870 .0
3871 .min(
3872 newest_selection_head
3873 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3874 )
3875 .saturating_sub(line_count as u32),
3876 );
3877 let mut row_target;
3878 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3879 row_target = target_above;
3880 } else {
3881 row_target = DisplayRow(
3882 edit_end.row().0.max(
3883 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3884 ) + 1,
3885 );
3886 if !visible_row_range.contains(&row_target) {
3887 // Not visible, so fallback on displaying immediately below the cursor.
3888 if let Some(cursor) = newest_selection_head {
3889 row_target = DisplayRow(cursor.row().0 + 1);
3890 } else {
3891 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3892 row_target = DisplayRow(0);
3893 }
3894 }
3895 };
3896
3897 text_bounds.origin
3898 + point(
3899 -scroll_pixel_position.x,
3900 row_target.as_f32() * line_height - scroll_pixel_position.y,
3901 )
3902 };
3903
3904 window.defer_draw(element, origin, 1);
3905
3906 // Do not return an element, since it will already be drawn due to defer_draw.
3907 None
3908 }
3909 }
3910 }
3911
3912 fn layout_mouse_context_menu(
3913 &self,
3914 editor_snapshot: &EditorSnapshot,
3915 visible_range: Range<DisplayRow>,
3916 content_origin: gpui::Point<Pixels>,
3917 window: &mut Window,
3918 cx: &mut App,
3919 ) -> Option<AnyElement> {
3920 let position = self.editor.update(cx, |editor, _cx| {
3921 let visible_start_point = editor.display_to_pixel_point(
3922 DisplayPoint::new(visible_range.start, 0),
3923 editor_snapshot,
3924 window,
3925 )?;
3926 let visible_end_point = editor.display_to_pixel_point(
3927 DisplayPoint::new(visible_range.end, 0),
3928 editor_snapshot,
3929 window,
3930 )?;
3931
3932 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3933 let (source_display_point, position) = match mouse_context_menu.position {
3934 MenuPosition::PinnedToScreen(point) => (None, point),
3935 MenuPosition::PinnedToEditor { source, offset } => {
3936 let source_display_point = source.to_display_point(editor_snapshot);
3937 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3938 let position = content_origin + source_point + offset;
3939 (Some(source_display_point), position)
3940 }
3941 };
3942
3943 let source_included = source_display_point.map_or(true, |source_display_point| {
3944 visible_range
3945 .to_inclusive()
3946 .contains(&source_display_point.row())
3947 });
3948 let position_included =
3949 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3950 if !source_included && !position_included {
3951 None
3952 } else {
3953 Some(position)
3954 }
3955 })?;
3956
3957 let mut element = self.editor.update(cx, |editor, _| {
3958 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3959 let context_menu = mouse_context_menu.context_menu.clone();
3960
3961 Some(
3962 deferred(
3963 anchored()
3964 .position(position)
3965 .child(context_menu)
3966 .anchor(Corner::TopLeft)
3967 .snap_to_window_with_margin(px(8.)),
3968 )
3969 .with_priority(1)
3970 .into_any(),
3971 )
3972 })?;
3973
3974 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3975 Some(element)
3976 }
3977
3978 #[allow(clippy::too_many_arguments)]
3979 fn layout_hover_popovers(
3980 &self,
3981 snapshot: &EditorSnapshot,
3982 hitbox: &Hitbox,
3983 text_hitbox: &Hitbox,
3984 visible_display_row_range: Range<DisplayRow>,
3985 content_origin: gpui::Point<Pixels>,
3986 scroll_pixel_position: gpui::Point<Pixels>,
3987 line_layouts: &[LineWithInvisibles],
3988 line_height: Pixels,
3989 em_width: Pixels,
3990 window: &mut Window,
3991 cx: &mut App,
3992 ) {
3993 struct MeasuredHoverPopover {
3994 element: AnyElement,
3995 size: Size<Pixels>,
3996 horizontal_offset: Pixels,
3997 }
3998
3999 let max_size = size(
4000 (120. * em_width) // Default size
4001 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4002 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4003 (16. * line_height) // Default size
4004 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4005 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4006 );
4007
4008 let hover_popovers = self.editor.update(cx, |editor, cx| {
4009 editor
4010 .hover_state
4011 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4012 });
4013 let Some((position, hover_popovers)) = hover_popovers else {
4014 return;
4015 };
4016
4017 // This is safe because we check on layout whether the required row is available
4018 let hovered_row_layout =
4019 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4020
4021 // Compute Hovered Point
4022 let x =
4023 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4024 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4025 let hovered_point = content_origin + point(x, y);
4026
4027 let mut overall_height = Pixels::ZERO;
4028 let mut measured_hover_popovers = Vec::new();
4029 for mut hover_popover in hover_popovers {
4030 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4031 let horizontal_offset =
4032 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4033
4034 overall_height += HOVER_POPOVER_GAP + size.height;
4035
4036 measured_hover_popovers.push(MeasuredHoverPopover {
4037 element: hover_popover,
4038 size,
4039 horizontal_offset,
4040 });
4041 }
4042 overall_height += HOVER_POPOVER_GAP;
4043
4044 fn draw_occluder(
4045 width: Pixels,
4046 origin: gpui::Point<Pixels>,
4047 window: &mut Window,
4048 cx: &mut App,
4049 ) {
4050 let mut occlusion = div()
4051 .size_full()
4052 .occlude()
4053 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4054 .into_any_element();
4055 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4056 window.defer_draw(occlusion, origin, 2);
4057 }
4058
4059 if hovered_point.y > overall_height {
4060 // There is enough space above. Render popovers above the hovered point
4061 let mut current_y = hovered_point.y;
4062 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4063 let size = popover.size;
4064 let popover_origin = point(
4065 hovered_point.x + popover.horizontal_offset,
4066 current_y - size.height,
4067 );
4068
4069 window.defer_draw(popover.element, popover_origin, 2);
4070 if position != itertools::Position::Last {
4071 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4072 draw_occluder(size.width, origin, window, cx);
4073 }
4074
4075 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4076 }
4077 } else {
4078 // There is not enough space above. Render popovers below the hovered point
4079 let mut current_y = hovered_point.y + line_height;
4080 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4081 let size = popover.size;
4082 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4083
4084 window.defer_draw(popover.element, popover_origin, 2);
4085 if position != itertools::Position::Last {
4086 let origin = point(popover_origin.x, popover_origin.y + size.height);
4087 draw_occluder(size.width, origin, window, cx);
4088 }
4089
4090 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4091 }
4092 }
4093 }
4094
4095 #[allow(clippy::too_many_arguments)]
4096 fn layout_diff_hunk_controls(
4097 &self,
4098 row_range: Range<DisplayRow>,
4099 row_infos: &[RowInfo],
4100 text_hitbox: &Hitbox,
4101 position_map: &PositionMap,
4102 newest_cursor_position: Option<DisplayPoint>,
4103 line_height: Pixels,
4104 scroll_pixel_position: gpui::Point<Pixels>,
4105 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4106 editor: Entity<Editor>,
4107 window: &mut Window,
4108 cx: &mut App,
4109 ) -> Vec<AnyElement> {
4110 let point_for_position =
4111 position_map.point_for_position(text_hitbox.bounds, window.mouse_position());
4112
4113 let mut controls = vec![];
4114
4115 let active_positions = [
4116 Some(point_for_position.previous_valid),
4117 newest_cursor_position,
4118 ];
4119
4120 for (hunk, _) in display_hunks {
4121 if let DisplayDiffHunk::Unfolded {
4122 display_row_range,
4123 multi_buffer_range,
4124 status,
4125 ..
4126 } = &hunk
4127 {
4128 if display_row_range.start < row_range.start
4129 || display_row_range.start >= row_range.end
4130 {
4131 continue;
4132 }
4133 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4134 if row_infos[row_ix].diff_status.is_none() {
4135 continue;
4136 }
4137 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4138 && *status != DiffHunkStatus::Added
4139 {
4140 continue;
4141 }
4142 if active_positions
4143 .iter()
4144 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4145 {
4146 let y = display_row_range.start.as_f32() * line_height
4147 + text_hitbox.bounds.top()
4148 - scroll_pixel_position.y;
4149 let x = text_hitbox.bounds.right() - px(100.);
4150
4151 let mut element = diff_hunk_controls(
4152 display_row_range.start.0,
4153 multi_buffer_range.clone(),
4154 line_height,
4155 &editor,
4156 cx,
4157 );
4158 element.prepaint_as_root(
4159 gpui::Point::new(x, y),
4160 size(px(100.0), line_height).into(),
4161 window,
4162 cx,
4163 );
4164 controls.push(element);
4165 }
4166 }
4167 }
4168
4169 controls
4170 }
4171
4172 #[allow(clippy::too_many_arguments)]
4173 fn layout_signature_help(
4174 &self,
4175 hitbox: &Hitbox,
4176 content_origin: gpui::Point<Pixels>,
4177 scroll_pixel_position: gpui::Point<Pixels>,
4178 newest_selection_head: Option<DisplayPoint>,
4179 start_row: DisplayRow,
4180 line_layouts: &[LineWithInvisibles],
4181 line_height: Pixels,
4182 em_width: Pixels,
4183 window: &mut Window,
4184 cx: &mut App,
4185 ) {
4186 if !self.editor.focus_handle(cx).is_focused(window) {
4187 return;
4188 }
4189 let Some(newest_selection_head) = newest_selection_head else {
4190 return;
4191 };
4192 let selection_row = newest_selection_head.row();
4193 if selection_row < start_row {
4194 return;
4195 }
4196 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4197 else {
4198 return;
4199 };
4200
4201 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4202 - scroll_pixel_position.x
4203 + content_origin.x;
4204 let start_y =
4205 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4206
4207 let max_size = size(
4208 (120. * em_width) // Default size
4209 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4210 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4211 (16. * line_height) // Default size
4212 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4213 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4214 );
4215
4216 let maybe_element = self.editor.update(cx, |editor, cx| {
4217 if let Some(popover) = editor.signature_help_state.popover_mut() {
4218 let element = popover.render(
4219 &self.style,
4220 max_size,
4221 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4222 cx,
4223 );
4224 Some(element)
4225 } else {
4226 None
4227 }
4228 });
4229 if let Some(mut element) = maybe_element {
4230 let window_size = window.viewport_size();
4231 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4232 let mut point = point(start_x, start_y - size.height);
4233
4234 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4235 if point.x + size.width >= window_size.width {
4236 point.x = window_size.width - size.width;
4237 }
4238
4239 window.defer_draw(element, point, 1)
4240 }
4241 }
4242
4243 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4244 window.paint_layer(layout.hitbox.bounds, |window| {
4245 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4246 let gutter_bg = cx.theme().colors().editor_gutter_background;
4247 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4248 window.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
4249
4250 if let EditorMode::Full = layout.mode {
4251 let mut active_rows = layout.active_rows.iter().peekable();
4252 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4253 let mut end_row = start_row.0;
4254 while active_rows
4255 .peek()
4256 .map_or(false, |(active_row, has_selection)| {
4257 active_row.0 == end_row + 1
4258 && *has_selection == contains_non_empty_selection
4259 })
4260 {
4261 active_rows.next().unwrap();
4262 end_row += 1;
4263 }
4264
4265 if !contains_non_empty_selection {
4266 let highlight_h_range =
4267 match layout.position_map.snapshot.current_line_highlight {
4268 CurrentLineHighlight::Gutter => Some(Range {
4269 start: layout.hitbox.left(),
4270 end: layout.gutter_hitbox.right(),
4271 }),
4272 CurrentLineHighlight::Line => Some(Range {
4273 start: layout.text_hitbox.bounds.left(),
4274 end: layout.text_hitbox.bounds.right(),
4275 }),
4276 CurrentLineHighlight::All => Some(Range {
4277 start: layout.hitbox.left(),
4278 end: layout.hitbox.right(),
4279 }),
4280 CurrentLineHighlight::None => None,
4281 };
4282 if let Some(range) = highlight_h_range {
4283 let active_line_bg = cx.theme().colors().editor_active_line_background;
4284 let bounds = Bounds {
4285 origin: point(
4286 range.start,
4287 layout.hitbox.origin.y
4288 + (start_row.as_f32() - scroll_top)
4289 * layout.position_map.line_height,
4290 ),
4291 size: size(
4292 range.end - range.start,
4293 layout.position_map.line_height
4294 * (end_row - start_row.0 + 1) as f32,
4295 ),
4296 };
4297 window.paint_quad(fill(bounds, active_line_bg));
4298 }
4299 }
4300 }
4301
4302 let mut paint_highlight =
4303 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4304 let origin = point(
4305 layout.hitbox.origin.x,
4306 layout.hitbox.origin.y
4307 + (highlight_row_start.as_f32() - scroll_top)
4308 * layout.position_map.line_height,
4309 );
4310 let size = size(
4311 layout.hitbox.size.width,
4312 layout.position_map.line_height
4313 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4314 );
4315 window.paint_quad(fill(Bounds { origin, size }, color));
4316 };
4317
4318 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4319 for (&new_row, &new_color) in &layout.highlighted_rows {
4320 match &mut current_paint {
4321 Some((current_color, current_range)) => {
4322 let current_color = *current_color;
4323 let new_range_started = current_color != new_color
4324 || current_range.end.next_row() != new_row;
4325 if new_range_started {
4326 paint_highlight(
4327 current_range.start,
4328 current_range.end,
4329 current_color,
4330 );
4331 current_paint = Some((new_color, new_row..new_row));
4332 continue;
4333 } else {
4334 current_range.end = current_range.end.next_row();
4335 }
4336 }
4337 None => current_paint = Some((new_color, new_row..new_row)),
4338 };
4339 }
4340 if let Some((color, range)) = current_paint {
4341 paint_highlight(range.start, range.end, color);
4342 }
4343
4344 let scroll_left =
4345 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4346
4347 for (wrap_position, active) in layout.wrap_guides.iter() {
4348 let x = (layout.text_hitbox.origin.x
4349 + *wrap_position
4350 + layout.position_map.em_width / 2.)
4351 - scroll_left;
4352
4353 let show_scrollbars = {
4354 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4355
4356 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4357 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4358 };
4359
4360 if x < layout.text_hitbox.origin.x
4361 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4362 {
4363 continue;
4364 }
4365
4366 let color = if *active {
4367 cx.theme().colors().editor_active_wrap_guide
4368 } else {
4369 cx.theme().colors().editor_wrap_guide
4370 };
4371 window.paint_quad(fill(
4372 Bounds {
4373 origin: point(x, layout.text_hitbox.origin.y),
4374 size: size(px(1.), layout.text_hitbox.size.height),
4375 },
4376 color,
4377 ));
4378 }
4379 }
4380 })
4381 }
4382
4383 fn paint_indent_guides(
4384 &mut self,
4385 layout: &mut EditorLayout,
4386 window: &mut Window,
4387 cx: &mut App,
4388 ) {
4389 let Some(indent_guides) = &layout.indent_guides else {
4390 return;
4391 };
4392
4393 let faded_color = |color: Hsla, alpha: f32| {
4394 let mut faded = color;
4395 faded.a = alpha;
4396 faded
4397 };
4398
4399 for indent_guide in indent_guides {
4400 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4401 let settings = indent_guide.settings;
4402
4403 // TODO fixed for now, expose them through themes later
4404 const INDENT_AWARE_ALPHA: f32 = 0.2;
4405 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4406 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4407 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4408
4409 let line_color = match (settings.coloring, indent_guide.active) {
4410 (IndentGuideColoring::Disabled, _) => None,
4411 (IndentGuideColoring::Fixed, false) => {
4412 Some(cx.theme().colors().editor_indent_guide)
4413 }
4414 (IndentGuideColoring::Fixed, true) => {
4415 Some(cx.theme().colors().editor_indent_guide_active)
4416 }
4417 (IndentGuideColoring::IndentAware, false) => {
4418 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4419 }
4420 (IndentGuideColoring::IndentAware, true) => {
4421 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4422 }
4423 };
4424
4425 let background_color = match (settings.background_coloring, indent_guide.active) {
4426 (IndentGuideBackgroundColoring::Disabled, _) => None,
4427 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4428 indent_accent_colors,
4429 INDENT_AWARE_BACKGROUND_ALPHA,
4430 )),
4431 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4432 indent_accent_colors,
4433 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4434 )),
4435 };
4436
4437 let requested_line_width = if indent_guide.active {
4438 settings.active_line_width
4439 } else {
4440 settings.line_width
4441 }
4442 .clamp(1, 10);
4443 let mut line_indicator_width = 0.;
4444 if let Some(color) = line_color {
4445 window.paint_quad(fill(
4446 Bounds {
4447 origin: indent_guide.origin,
4448 size: size(px(requested_line_width as f32), indent_guide.length),
4449 },
4450 color,
4451 ));
4452 line_indicator_width = requested_line_width as f32;
4453 }
4454
4455 if let Some(color) = background_color {
4456 let width = indent_guide.single_indent_width - px(line_indicator_width);
4457 window.paint_quad(fill(
4458 Bounds {
4459 origin: point(
4460 indent_guide.origin.x + px(line_indicator_width),
4461 indent_guide.origin.y,
4462 ),
4463 size: size(width, indent_guide.length),
4464 },
4465 color,
4466 ));
4467 }
4468 }
4469 }
4470
4471 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4472 let is_singleton = self.editor.read(cx).is_singleton(cx);
4473
4474 let line_height = layout.position_map.line_height;
4475 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4476
4477 for LineNumberLayout {
4478 shaped_line,
4479 hitbox,
4480 display_row,
4481 } in layout.line_numbers.values()
4482 {
4483 let Some(hitbox) = hitbox else {
4484 continue;
4485 };
4486
4487 let is_active = layout.active_rows.contains_key(&display_row);
4488
4489 let color = if is_active {
4490 cx.theme().colors().editor_active_line_number
4491 } else if !is_singleton && hitbox.is_hovered(window) {
4492 cx.theme().colors().editor_hover_line_number
4493 } else {
4494 cx.theme().colors().editor_line_number
4495 };
4496
4497 let Some(line) = self
4498 .shape_line_number(shaped_line.text.clone(), color, window)
4499 .log_err()
4500 else {
4501 continue;
4502 };
4503 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4504 continue;
4505 };
4506 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4507 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4508 if is_singleton {
4509 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4510 } else {
4511 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4512 }
4513 }
4514 }
4515
4516 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4517 if layout.display_hunks.is_empty() {
4518 return;
4519 }
4520
4521 let line_height = layout.position_map.line_height;
4522 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4523 for (hunk, hitbox) in &layout.display_hunks {
4524 let hunk_to_paint = match hunk {
4525 DisplayDiffHunk::Folded { .. } => {
4526 let hunk_bounds = Self::diff_hunk_bounds(
4527 &layout.position_map.snapshot,
4528 line_height,
4529 layout.gutter_hitbox.bounds,
4530 hunk,
4531 );
4532 Some((
4533 hunk_bounds,
4534 cx.theme().status().modified,
4535 Corners::all(px(0.)),
4536 ))
4537 }
4538 DisplayDiffHunk::Unfolded {
4539 status,
4540 display_row_range,
4541 ..
4542 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4543 DiffHunkStatus::Added => (
4544 hunk_hitbox.bounds,
4545 cx.theme().status().created,
4546 Corners::all(px(0.)),
4547 ),
4548 DiffHunkStatus::Modified => (
4549 hunk_hitbox.bounds,
4550 cx.theme().status().modified,
4551 Corners::all(px(0.)),
4552 ),
4553 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4554 hunk_hitbox.bounds,
4555 cx.theme().status().deleted,
4556 Corners::all(px(0.)),
4557 ),
4558 DiffHunkStatus::Removed => (
4559 Bounds::new(
4560 point(
4561 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4562 hunk_hitbox.origin.y,
4563 ),
4564 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4565 ),
4566 cx.theme().status().deleted,
4567 Corners::all(1. * line_height),
4568 ),
4569 }),
4570 };
4571
4572 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4573 window.paint_quad(quad(
4574 hunk_bounds,
4575 corner_radii,
4576 background_color,
4577 Edges::default(),
4578 transparent_black(),
4579 ));
4580 }
4581 }
4582 });
4583 }
4584
4585 fn diff_hunk_bounds(
4586 snapshot: &EditorSnapshot,
4587 line_height: Pixels,
4588 gutter_bounds: Bounds<Pixels>,
4589 hunk: &DisplayDiffHunk,
4590 ) -> Bounds<Pixels> {
4591 let scroll_position = snapshot.scroll_position();
4592 let scroll_top = scroll_position.y * line_height;
4593 let gutter_strip_width = (0.275 * line_height).floor();
4594
4595 match hunk {
4596 DisplayDiffHunk::Folded { display_row, .. } => {
4597 let start_y = display_row.as_f32() * line_height - scroll_top;
4598 let end_y = start_y + line_height;
4599 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4600 let highlight_size = size(gutter_strip_width, end_y - start_y);
4601 Bounds::new(highlight_origin, highlight_size)
4602 }
4603 DisplayDiffHunk::Unfolded {
4604 display_row_range,
4605 status,
4606 ..
4607 } => {
4608 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4609 let row = display_row_range.start;
4610
4611 let offset = line_height / 2.;
4612 let start_y = row.as_f32() * line_height - offset - scroll_top;
4613 let end_y = start_y + line_height;
4614
4615 let width = (0.35 * line_height).floor();
4616 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4617 let highlight_size = size(width, end_y - start_y);
4618 Bounds::new(highlight_origin, highlight_size)
4619 } else {
4620 let start_row = display_row_range.start;
4621 let end_row = display_row_range.end;
4622 // If we're in a multibuffer, row range span might include an
4623 // excerpt header, so if we were to draw the marker straight away,
4624 // the hunk might include the rows of that header.
4625 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4626 // Instead, we simply check whether the range we're dealing with includes
4627 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4628 let end_row_in_current_excerpt = snapshot
4629 .blocks_in_range(start_row..end_row)
4630 .find_map(|(start_row, block)| {
4631 if matches!(block, Block::ExcerptBoundary { .. }) {
4632 Some(start_row)
4633 } else {
4634 None
4635 }
4636 })
4637 .unwrap_or(end_row);
4638
4639 let start_y = start_row.as_f32() * line_height - scroll_top;
4640 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4641
4642 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4643 let highlight_size = size(gutter_strip_width, end_y - start_y);
4644 Bounds::new(highlight_origin, highlight_size)
4645 }
4646 }
4647 }
4648 }
4649
4650 fn paint_gutter_indicators(
4651 &self,
4652 layout: &mut EditorLayout,
4653 window: &mut Window,
4654 cx: &mut App,
4655 ) {
4656 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4657 window.with_element_namespace("crease_toggles", |window| {
4658 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4659 crease_toggle.paint(window, cx);
4660 }
4661 });
4662
4663 for test_indicator in layout.test_indicators.iter_mut() {
4664 test_indicator.paint(window, cx);
4665 }
4666
4667 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4668 indicator.paint(window, cx);
4669 }
4670 });
4671 }
4672
4673 fn paint_gutter_highlights(
4674 &self,
4675 layout: &mut EditorLayout,
4676 window: &mut Window,
4677 cx: &mut App,
4678 ) {
4679 for (_, hunk_hitbox) in &layout.display_hunks {
4680 if let Some(hunk_hitbox) = hunk_hitbox {
4681 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4682 }
4683 }
4684
4685 let show_git_gutter = layout
4686 .position_map
4687 .snapshot
4688 .show_git_diff_gutter
4689 .unwrap_or_else(|| {
4690 matches!(
4691 ProjectSettings::get_global(cx).git.git_gutter,
4692 Some(GitGutterSetting::TrackedFiles)
4693 )
4694 });
4695 if show_git_gutter {
4696 Self::paint_diff_hunks(layout, window, cx)
4697 }
4698
4699 let highlight_width = 0.275 * layout.position_map.line_height;
4700 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4701 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4702 for (range, color) in &layout.highlighted_gutter_ranges {
4703 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4704 layout.visible_display_row_range.start - DisplayRow(1)
4705 } else {
4706 range.start.row()
4707 };
4708 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4709 layout.visible_display_row_range.end + DisplayRow(1)
4710 } else {
4711 range.end.row()
4712 };
4713
4714 let start_y = layout.gutter_hitbox.top()
4715 + start_row.0 as f32 * layout.position_map.line_height
4716 - layout.position_map.scroll_pixel_position.y;
4717 let end_y = layout.gutter_hitbox.top()
4718 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4719 - layout.position_map.scroll_pixel_position.y;
4720 let bounds = Bounds::from_corners(
4721 point(layout.gutter_hitbox.left(), start_y),
4722 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4723 );
4724 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4725 }
4726 });
4727 }
4728
4729 fn paint_blamed_display_rows(
4730 &self,
4731 layout: &mut EditorLayout,
4732 window: &mut Window,
4733 cx: &mut App,
4734 ) {
4735 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4736 return;
4737 };
4738
4739 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4740 for mut blame_element in blamed_display_rows.into_iter() {
4741 blame_element.paint(window, cx);
4742 }
4743 })
4744 }
4745
4746 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4747 window.with_content_mask(
4748 Some(ContentMask {
4749 bounds: layout.text_hitbox.bounds,
4750 }),
4751 |window| {
4752 let cursor_style = if self
4753 .editor
4754 .read(cx)
4755 .hovered_link_state
4756 .as_ref()
4757 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4758 {
4759 CursorStyle::PointingHand
4760 } else {
4761 CursorStyle::IBeam
4762 };
4763 window.set_cursor_style(cursor_style, &layout.text_hitbox);
4764
4765 let invisible_display_ranges = self.paint_highlights(layout, window);
4766 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4767 self.paint_redactions(layout, window);
4768 self.paint_cursors(layout, window, cx);
4769 self.paint_inline_blame(layout, window, cx);
4770 self.paint_diff_hunk_controls(layout, window, cx);
4771 window.with_element_namespace("crease_trailers", |window| {
4772 for trailer in layout.crease_trailers.iter_mut().flatten() {
4773 trailer.element.paint(window, cx);
4774 }
4775 });
4776 },
4777 )
4778 }
4779
4780 fn paint_highlights(
4781 &mut self,
4782 layout: &mut EditorLayout,
4783 window: &mut Window,
4784 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4785 window.paint_layer(layout.text_hitbox.bounds, |window| {
4786 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4787 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4788 for (range, color) in &layout.highlighted_ranges {
4789 self.paint_highlighted_range(
4790 range.clone(),
4791 *color,
4792 Pixels::ZERO,
4793 line_end_overshoot,
4794 layout,
4795 window,
4796 );
4797 }
4798
4799 let corner_radius = 0.15 * layout.position_map.line_height;
4800
4801 for (player_color, selections) in &layout.selections {
4802 for selection in selections.iter() {
4803 self.paint_highlighted_range(
4804 selection.range.clone(),
4805 player_color.selection,
4806 corner_radius,
4807 corner_radius * 2.,
4808 layout,
4809 window,
4810 );
4811
4812 if selection.is_local && !selection.range.is_empty() {
4813 invisible_display_ranges.push(selection.range.clone());
4814 }
4815 }
4816 }
4817 invisible_display_ranges
4818 })
4819 }
4820
4821 fn paint_lines(
4822 &mut self,
4823 invisible_display_ranges: &[Range<DisplayPoint>],
4824 layout: &mut EditorLayout,
4825 window: &mut Window,
4826 cx: &mut App,
4827 ) {
4828 let whitespace_setting = self
4829 .editor
4830 .read(cx)
4831 .buffer
4832 .read(cx)
4833 .settings_at(0, cx)
4834 .show_whitespaces;
4835
4836 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4837 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4838 line_with_invisibles.draw(
4839 layout,
4840 row,
4841 layout.content_origin,
4842 whitespace_setting,
4843 invisible_display_ranges,
4844 window,
4845 cx,
4846 )
4847 }
4848
4849 for line_element in &mut layout.line_elements {
4850 line_element.paint(window, cx);
4851 }
4852 }
4853
4854 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4855 if layout.redacted_ranges.is_empty() {
4856 return;
4857 }
4858
4859 let line_end_overshoot = layout.line_end_overshoot();
4860
4861 // A softer than perfect black
4862 let redaction_color = gpui::rgb(0x0e1111);
4863
4864 window.paint_layer(layout.text_hitbox.bounds, |window| {
4865 for range in layout.redacted_ranges.iter() {
4866 self.paint_highlighted_range(
4867 range.clone(),
4868 redaction_color.into(),
4869 Pixels::ZERO,
4870 line_end_overshoot,
4871 layout,
4872 window,
4873 );
4874 }
4875 });
4876 }
4877
4878 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4879 for cursor in &mut layout.visible_cursors {
4880 cursor.paint(layout.content_origin, window, cx);
4881 }
4882 }
4883
4884 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4885 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4886
4887 if let Some(scrollbar_layout) = scrollbar_x {
4888 let hitbox = scrollbar_layout.hitbox.clone();
4889 let text_unit_size = scrollbar_layout.text_unit_size;
4890 let visible_range = scrollbar_layout.visible_range.clone();
4891 let thumb_bounds = scrollbar_layout.thumb_bounds();
4892
4893 if scrollbar_layout.visible {
4894 window.paint_layer(hitbox.bounds, |window| {
4895 window.paint_quad(quad(
4896 hitbox.bounds,
4897 Corners::default(),
4898 cx.theme().colors().scrollbar_track_background,
4899 Edges {
4900 top: Pixels::ZERO,
4901 right: Pixels::ZERO,
4902 bottom: Pixels::ZERO,
4903 left: Pixels::ZERO,
4904 },
4905 cx.theme().colors().scrollbar_track_border,
4906 ));
4907
4908 window.paint_quad(quad(
4909 thumb_bounds,
4910 Corners::default(),
4911 cx.theme().colors().scrollbar_thumb_background,
4912 Edges {
4913 top: Pixels::ZERO,
4914 right: Pixels::ZERO,
4915 bottom: Pixels::ZERO,
4916 left: ScrollbarLayout::BORDER_WIDTH,
4917 },
4918 cx.theme().colors().scrollbar_thumb_border,
4919 ));
4920 })
4921 }
4922
4923 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4924
4925 window.on_mouse_event({
4926 let editor = self.editor.clone();
4927
4928 // there may be a way to avoid this clone
4929 let hitbox = hitbox.clone();
4930
4931 let mut mouse_position = window.mouse_position();
4932 move |event: &MouseMoveEvent, phase, window, cx| {
4933 if phase == DispatchPhase::Capture {
4934 return;
4935 }
4936
4937 editor.update(cx, |editor, cx| {
4938 if event.pressed_button == Some(MouseButton::Left)
4939 && editor
4940 .scroll_manager
4941 .is_dragging_scrollbar(Axis::Horizontal)
4942 {
4943 let x = mouse_position.x;
4944 let new_x = event.position.x;
4945 if (hitbox.left()..hitbox.right()).contains(&x) {
4946 let mut position = editor.scroll_position(cx);
4947
4948 position.x += (new_x - x) / text_unit_size;
4949 if position.x < 0.0 {
4950 position.x = 0.0;
4951 }
4952 editor.set_scroll_position(position, window, cx);
4953 }
4954
4955 cx.stop_propagation();
4956 } else {
4957 editor.scroll_manager.set_is_dragging_scrollbar(
4958 Axis::Horizontal,
4959 false,
4960 cx,
4961 );
4962
4963 if hitbox.is_hovered(window) {
4964 editor.scroll_manager.show_scrollbar(window, cx);
4965 }
4966 }
4967 mouse_position = event.position;
4968 })
4969 }
4970 });
4971
4972 if self
4973 .editor
4974 .read(cx)
4975 .scroll_manager
4976 .is_dragging_scrollbar(Axis::Horizontal)
4977 {
4978 window.on_mouse_event({
4979 let editor = self.editor.clone();
4980 move |_: &MouseUpEvent, phase, _, cx| {
4981 if phase == DispatchPhase::Capture {
4982 return;
4983 }
4984
4985 editor.update(cx, |editor, cx| {
4986 editor.scroll_manager.set_is_dragging_scrollbar(
4987 Axis::Horizontal,
4988 false,
4989 cx,
4990 );
4991 cx.stop_propagation();
4992 });
4993 }
4994 });
4995 } else {
4996 window.on_mouse_event({
4997 let editor = self.editor.clone();
4998
4999 move |event: &MouseDownEvent, phase, window, cx| {
5000 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5001 return;
5002 }
5003
5004 editor.update(cx, |editor, cx| {
5005 editor.scroll_manager.set_is_dragging_scrollbar(
5006 Axis::Horizontal,
5007 true,
5008 cx,
5009 );
5010
5011 let x = event.position.x;
5012
5013 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5014 let center_row =
5015 ((x - hitbox.left()) / text_unit_size).round() as u32;
5016 let top_row = center_row.saturating_sub(
5017 (visible_range.end - visible_range.start) as u32 / 2,
5018 );
5019
5020 let mut position = editor.scroll_position(cx);
5021 position.x = top_row as f32;
5022
5023 editor.set_scroll_position(position, window, cx);
5024 } else {
5025 editor.scroll_manager.show_scrollbar(window, cx);
5026 }
5027
5028 cx.stop_propagation();
5029 });
5030 }
5031 });
5032 }
5033 }
5034
5035 if let Some(scrollbar_layout) = scrollbar_y {
5036 let hitbox = scrollbar_layout.hitbox.clone();
5037 let text_unit_size = scrollbar_layout.text_unit_size;
5038 let visible_range = scrollbar_layout.visible_range.clone();
5039 let thumb_bounds = scrollbar_layout.thumb_bounds();
5040
5041 if scrollbar_layout.visible {
5042 window.paint_layer(hitbox.bounds, |window| {
5043 window.paint_quad(quad(
5044 hitbox.bounds,
5045 Corners::default(),
5046 cx.theme().colors().scrollbar_track_background,
5047 Edges {
5048 top: Pixels::ZERO,
5049 right: Pixels::ZERO,
5050 bottom: Pixels::ZERO,
5051 left: ScrollbarLayout::BORDER_WIDTH,
5052 },
5053 cx.theme().colors().scrollbar_track_border,
5054 ));
5055
5056 let fast_markers =
5057 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5058 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5059 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5060
5061 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5062 for marker in markers.iter().chain(&fast_markers) {
5063 let mut marker = marker.clone();
5064 marker.bounds.origin += hitbox.origin;
5065 window.paint_quad(marker);
5066 }
5067
5068 window.paint_quad(quad(
5069 thumb_bounds,
5070 Corners::default(),
5071 cx.theme().colors().scrollbar_thumb_background,
5072 Edges {
5073 top: Pixels::ZERO,
5074 right: Pixels::ZERO,
5075 bottom: Pixels::ZERO,
5076 left: ScrollbarLayout::BORDER_WIDTH,
5077 },
5078 cx.theme().colors().scrollbar_thumb_border,
5079 ));
5080 });
5081 }
5082
5083 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5084
5085 window.on_mouse_event({
5086 let editor = self.editor.clone();
5087
5088 let hitbox = hitbox.clone();
5089
5090 let mut mouse_position = window.mouse_position();
5091 move |event: &MouseMoveEvent, phase, window, cx| {
5092 if phase == DispatchPhase::Capture {
5093 return;
5094 }
5095
5096 editor.update(cx, |editor, cx| {
5097 if event.pressed_button == Some(MouseButton::Left)
5098 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5099 {
5100 let y = mouse_position.y;
5101 let new_y = event.position.y;
5102 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5103 let mut position = editor.scroll_position(cx);
5104 position.y += (new_y - y) / text_unit_size;
5105 if position.y < 0.0 {
5106 position.y = 0.0;
5107 }
5108 editor.set_scroll_position(position, window, cx);
5109 }
5110 } else {
5111 editor.scroll_manager.set_is_dragging_scrollbar(
5112 Axis::Vertical,
5113 false,
5114 cx,
5115 );
5116
5117 if hitbox.is_hovered(window) {
5118 editor.scroll_manager.show_scrollbar(window, cx);
5119 }
5120 }
5121 mouse_position = event.position;
5122 })
5123 }
5124 });
5125
5126 if self
5127 .editor
5128 .read(cx)
5129 .scroll_manager
5130 .is_dragging_scrollbar(Axis::Vertical)
5131 {
5132 window.on_mouse_event({
5133 let editor = self.editor.clone();
5134 move |_: &MouseUpEvent, phase, _, cx| {
5135 if phase == DispatchPhase::Capture {
5136 return;
5137 }
5138
5139 editor.update(cx, |editor, cx| {
5140 editor.scroll_manager.set_is_dragging_scrollbar(
5141 Axis::Vertical,
5142 false,
5143 cx,
5144 );
5145 cx.stop_propagation();
5146 });
5147 }
5148 });
5149 } else {
5150 window.on_mouse_event({
5151 let editor = self.editor.clone();
5152
5153 move |event: &MouseDownEvent, phase, window, cx| {
5154 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5155 return;
5156 }
5157
5158 editor.update(cx, |editor, cx| {
5159 editor.scroll_manager.set_is_dragging_scrollbar(
5160 Axis::Vertical,
5161 true,
5162 cx,
5163 );
5164
5165 let y = event.position.y;
5166 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5167 let center_row =
5168 ((y - hitbox.top()) / text_unit_size).round() as u32;
5169 let top_row = center_row.saturating_sub(
5170 (visible_range.end - visible_range.start) as u32 / 2,
5171 );
5172 let mut position = editor.scroll_position(cx);
5173 position.y = top_row as f32;
5174 editor.set_scroll_position(position, window, cx);
5175 } else {
5176 editor.scroll_manager.show_scrollbar(window, cx);
5177 }
5178
5179 cx.stop_propagation();
5180 });
5181 }
5182 });
5183 }
5184 }
5185 }
5186
5187 fn collect_fast_scrollbar_markers(
5188 &self,
5189 layout: &EditorLayout,
5190 scrollbar_layout: &ScrollbarLayout,
5191 cx: &mut App,
5192 ) -> Vec<PaintQuad> {
5193 const LIMIT: usize = 100;
5194 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5195 return vec![];
5196 }
5197 let cursor_ranges = layout
5198 .cursors
5199 .iter()
5200 .map(|(point, color)| ColoredRange {
5201 start: point.row(),
5202 end: point.row(),
5203 color: *color,
5204 })
5205 .collect_vec();
5206 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5207 }
5208
5209 fn refresh_slow_scrollbar_markers(
5210 &self,
5211 layout: &EditorLayout,
5212 scrollbar_layout: &ScrollbarLayout,
5213 window: &mut Window,
5214 cx: &mut App,
5215 ) {
5216 self.editor.update(cx, |editor, cx| {
5217 if !editor.is_singleton(cx)
5218 || !editor
5219 .scrollbar_marker_state
5220 .should_refresh(scrollbar_layout.hitbox.size)
5221 {
5222 return;
5223 }
5224
5225 let scrollbar_layout = scrollbar_layout.clone();
5226 let background_highlights = editor.background_highlights.clone();
5227 let snapshot = layout.position_map.snapshot.clone();
5228 let theme = cx.theme().clone();
5229 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5230
5231 editor.scrollbar_marker_state.dirty = false;
5232 editor.scrollbar_marker_state.pending_refresh =
5233 Some(cx.spawn_in(window, |editor, mut cx| async move {
5234 let scrollbar_size = scrollbar_layout.hitbox.size;
5235 let scrollbar_markers = cx
5236 .background_executor()
5237 .spawn(async move {
5238 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5239 let mut marker_quads = Vec::new();
5240 if scrollbar_settings.git_diff {
5241 let marker_row_ranges =
5242 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5243 let start_display_row =
5244 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5245 .to_display_point(&snapshot.display_snapshot)
5246 .row();
5247 let mut end_display_row =
5248 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5249 .to_display_point(&snapshot.display_snapshot)
5250 .row();
5251 if end_display_row != start_display_row {
5252 end_display_row.0 -= 1;
5253 }
5254 let color = match &hunk.status() {
5255 DiffHunkStatus::Added => theme.status().created,
5256 DiffHunkStatus::Modified => theme.status().modified,
5257 DiffHunkStatus::Removed => theme.status().deleted,
5258 };
5259 ColoredRange {
5260 start: start_display_row,
5261 end: end_display_row,
5262 color,
5263 }
5264 });
5265
5266 marker_quads.extend(
5267 scrollbar_layout
5268 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5269 );
5270 }
5271
5272 for (background_highlight_id, (_, background_ranges)) in
5273 background_highlights.iter()
5274 {
5275 let is_search_highlights = *background_highlight_id
5276 == TypeId::of::<BufferSearchHighlights>();
5277 let is_symbol_occurrences = *background_highlight_id
5278 == TypeId::of::<DocumentHighlightRead>()
5279 || *background_highlight_id
5280 == TypeId::of::<DocumentHighlightWrite>();
5281 if (is_search_highlights && scrollbar_settings.search_results)
5282 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5283 {
5284 let mut color = theme.status().info;
5285 if is_symbol_occurrences {
5286 color.fade_out(0.5);
5287 }
5288 let marker_row_ranges = background_ranges.iter().map(|range| {
5289 let display_start = range
5290 .start
5291 .to_display_point(&snapshot.display_snapshot);
5292 let display_end =
5293 range.end.to_display_point(&snapshot.display_snapshot);
5294 ColoredRange {
5295 start: display_start.row(),
5296 end: display_end.row(),
5297 color,
5298 }
5299 });
5300 marker_quads.extend(
5301 scrollbar_layout
5302 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5303 );
5304 }
5305 }
5306
5307 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5308 let diagnostics = snapshot
5309 .buffer_snapshot
5310 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
5311 // Don't show diagnostics the user doesn't care about
5312 .filter(|diagnostic| {
5313 match (
5314 scrollbar_settings.diagnostics,
5315 diagnostic.diagnostic.severity,
5316 ) {
5317 (ScrollbarDiagnostics::All, _) => true,
5318 (
5319 ScrollbarDiagnostics::Error,
5320 DiagnosticSeverity::ERROR,
5321 ) => true,
5322 (
5323 ScrollbarDiagnostics::Warning,
5324 DiagnosticSeverity::ERROR
5325 | DiagnosticSeverity::WARNING,
5326 ) => true,
5327 (
5328 ScrollbarDiagnostics::Information,
5329 DiagnosticSeverity::ERROR
5330 | DiagnosticSeverity::WARNING
5331 | DiagnosticSeverity::INFORMATION,
5332 ) => true,
5333 (_, _) => false,
5334 }
5335 })
5336 // We want to sort by severity, in order to paint the most severe diagnostics last.
5337 .sorted_by_key(|diagnostic| {
5338 std::cmp::Reverse(diagnostic.diagnostic.severity)
5339 });
5340
5341 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5342 let start_display = diagnostic
5343 .range
5344 .start
5345 .to_display_point(&snapshot.display_snapshot);
5346 let end_display = diagnostic
5347 .range
5348 .end
5349 .to_display_point(&snapshot.display_snapshot);
5350 let color = match diagnostic.diagnostic.severity {
5351 DiagnosticSeverity::ERROR => theme.status().error,
5352 DiagnosticSeverity::WARNING => theme.status().warning,
5353 DiagnosticSeverity::INFORMATION => theme.status().info,
5354 _ => theme.status().hint,
5355 };
5356 ColoredRange {
5357 start: start_display.row(),
5358 end: end_display.row(),
5359 color,
5360 }
5361 });
5362 marker_quads.extend(
5363 scrollbar_layout
5364 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5365 );
5366 }
5367
5368 Arc::from(marker_quads)
5369 })
5370 .await;
5371
5372 editor.update(&mut cx, |editor, cx| {
5373 editor.scrollbar_marker_state.markers = scrollbar_markers;
5374 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5375 editor.scrollbar_marker_state.pending_refresh = None;
5376 cx.notify();
5377 })?;
5378
5379 Ok(())
5380 }));
5381 });
5382 }
5383
5384 #[allow(clippy::too_many_arguments)]
5385 fn paint_highlighted_range(
5386 &self,
5387 range: Range<DisplayPoint>,
5388 color: Hsla,
5389 corner_radius: Pixels,
5390 line_end_overshoot: Pixels,
5391 layout: &EditorLayout,
5392 window: &mut Window,
5393 ) {
5394 let start_row = layout.visible_display_row_range.start;
5395 let end_row = layout.visible_display_row_range.end;
5396 if range.start != range.end {
5397 let row_range = if range.end.column() == 0 {
5398 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5399 } else {
5400 cmp::max(range.start.row(), start_row)
5401 ..cmp::min(range.end.row().next_row(), end_row)
5402 };
5403
5404 let highlighted_range = HighlightedRange {
5405 color,
5406 line_height: layout.position_map.line_height,
5407 corner_radius,
5408 start_y: layout.content_origin.y
5409 + row_range.start.as_f32() * layout.position_map.line_height
5410 - layout.position_map.scroll_pixel_position.y,
5411 lines: row_range
5412 .iter_rows()
5413 .map(|row| {
5414 let line_layout =
5415 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5416 HighlightedRangeLine {
5417 start_x: if row == range.start.row() {
5418 layout.content_origin.x
5419 + line_layout.x_for_index(range.start.column() as usize)
5420 - layout.position_map.scroll_pixel_position.x
5421 } else {
5422 layout.content_origin.x
5423 - layout.position_map.scroll_pixel_position.x
5424 },
5425 end_x: if row == range.end.row() {
5426 layout.content_origin.x
5427 + line_layout.x_for_index(range.end.column() as usize)
5428 - layout.position_map.scroll_pixel_position.x
5429 } else {
5430 layout.content_origin.x + line_layout.width + line_end_overshoot
5431 - layout.position_map.scroll_pixel_position.x
5432 },
5433 }
5434 })
5435 .collect(),
5436 };
5437
5438 highlighted_range.paint(layout.text_hitbox.bounds, window);
5439 }
5440 }
5441
5442 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5443 if let Some(mut inline_blame) = layout.inline_blame.take() {
5444 window.paint_layer(layout.text_hitbox.bounds, |window| {
5445 inline_blame.paint(window, cx);
5446 })
5447 }
5448 }
5449
5450 fn paint_diff_hunk_controls(
5451 &mut self,
5452 layout: &mut EditorLayout,
5453 window: &mut Window,
5454 cx: &mut App,
5455 ) {
5456 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5457 diff_hunk_control.paint(window, cx);
5458 }
5459 }
5460
5461 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5462 for mut block in layout.blocks.drain(..) {
5463 block.element.paint(window, cx);
5464 }
5465 }
5466
5467 fn paint_inline_completion_popover(
5468 &mut self,
5469 layout: &mut EditorLayout,
5470 window: &mut Window,
5471 cx: &mut App,
5472 ) {
5473 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5474 inline_completion_popover.paint(window, cx);
5475 }
5476 }
5477
5478 fn paint_mouse_context_menu(
5479 &mut self,
5480 layout: &mut EditorLayout,
5481 window: &mut Window,
5482 cx: &mut App,
5483 ) {
5484 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5485 mouse_context_menu.paint(window, cx);
5486 }
5487 }
5488
5489 fn paint_scroll_wheel_listener(
5490 &mut self,
5491 layout: &EditorLayout,
5492 window: &mut Window,
5493 cx: &mut App,
5494 ) {
5495 window.on_mouse_event({
5496 let position_map = layout.position_map.clone();
5497 let editor = self.editor.clone();
5498 let hitbox = layout.hitbox.clone();
5499 let mut delta = ScrollDelta::default();
5500
5501 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5502 // accidentally turn off their scrolling.
5503 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5504
5505 move |event: &ScrollWheelEvent, phase, window, cx| {
5506 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5507 delta = delta.coalesce(event.delta);
5508 editor.update(cx, |editor, cx| {
5509 let position_map: &PositionMap = &position_map;
5510
5511 let line_height = position_map.line_height;
5512 let max_glyph_width = position_map.em_width;
5513 let (delta, axis) = match delta {
5514 gpui::ScrollDelta::Pixels(mut pixels) => {
5515 //Trackpad
5516 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5517 (pixels, axis)
5518 }
5519
5520 gpui::ScrollDelta::Lines(lines) => {
5521 //Not trackpad
5522 let pixels =
5523 point(lines.x * max_glyph_width, lines.y * line_height);
5524 (pixels, None)
5525 }
5526 };
5527
5528 let current_scroll_position = position_map.snapshot.scroll_position();
5529 let x = (current_scroll_position.x * max_glyph_width
5530 - (delta.x * scroll_sensitivity))
5531 / max_glyph_width;
5532 let y = (current_scroll_position.y * line_height
5533 - (delta.y * scroll_sensitivity))
5534 / line_height;
5535 let mut scroll_position =
5536 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5537 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5538 if forbid_vertical_scroll {
5539 scroll_position.y = current_scroll_position.y;
5540 }
5541
5542 if scroll_position != current_scroll_position {
5543 editor.scroll(scroll_position, axis, window, cx);
5544 cx.stop_propagation();
5545 } else if y < 0. {
5546 // Due to clamping, we may fail to detect cases of overscroll to the top;
5547 // We want the scroll manager to get an update in such cases and detect the change of direction
5548 // on the next frame.
5549 cx.notify();
5550 }
5551 });
5552 }
5553 }
5554 });
5555 }
5556
5557 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5558 self.paint_scroll_wheel_listener(layout, window, cx);
5559
5560 window.on_mouse_event({
5561 let position_map = layout.position_map.clone();
5562 let editor = self.editor.clone();
5563 let text_hitbox = layout.text_hitbox.clone();
5564 let gutter_hitbox = layout.gutter_hitbox.clone();
5565 let multi_buffer_range =
5566 layout
5567 .display_hunks
5568 .iter()
5569 .find_map(|(hunk, hunk_hitbox)| match hunk {
5570 DisplayDiffHunk::Folded { .. } => None,
5571 DisplayDiffHunk::Unfolded {
5572 multi_buffer_range, ..
5573 } => {
5574 if hunk_hitbox
5575 .as_ref()
5576 .map(|hitbox| hitbox.is_hovered(window))
5577 .unwrap_or(false)
5578 {
5579 Some(multi_buffer_range.clone())
5580 } else {
5581 None
5582 }
5583 }
5584 });
5585 let line_numbers = layout.line_numbers.clone();
5586
5587 move |event: &MouseDownEvent, phase, window, cx| {
5588 if phase == DispatchPhase::Bubble {
5589 match event.button {
5590 MouseButton::Left => editor.update(cx, |editor, cx| {
5591 let pending_mouse_down = editor
5592 .pending_mouse_down
5593 .get_or_insert_with(Default::default)
5594 .clone();
5595
5596 *pending_mouse_down.borrow_mut() = Some(event.clone());
5597
5598 Self::mouse_left_down(
5599 editor,
5600 event,
5601 multi_buffer_range.clone(),
5602 &position_map,
5603 &text_hitbox,
5604 &gutter_hitbox,
5605 line_numbers.as_ref(),
5606 window,
5607 cx,
5608 );
5609 }),
5610 MouseButton::Right => editor.update(cx, |editor, cx| {
5611 Self::mouse_right_down(
5612 editor,
5613 event,
5614 &position_map,
5615 &text_hitbox,
5616 window,
5617 cx,
5618 );
5619 }),
5620 MouseButton::Middle => editor.update(cx, |editor, cx| {
5621 Self::mouse_middle_down(
5622 editor,
5623 event,
5624 &position_map,
5625 &text_hitbox,
5626 window,
5627 cx,
5628 );
5629 }),
5630 _ => {}
5631 };
5632 }
5633 }
5634 });
5635
5636 window.on_mouse_event({
5637 let editor = self.editor.clone();
5638 let position_map = layout.position_map.clone();
5639 let text_hitbox = layout.text_hitbox.clone();
5640
5641 move |event: &MouseUpEvent, phase, window, cx| {
5642 if phase == DispatchPhase::Bubble {
5643 editor.update(cx, |editor, cx| {
5644 Self::mouse_up(editor, event, &position_map, &text_hitbox, window, cx)
5645 });
5646 }
5647 }
5648 });
5649
5650 window.on_mouse_event({
5651 let editor = self.editor.clone();
5652 let position_map = layout.position_map.clone();
5653 let text_hitbox = layout.text_hitbox.clone();
5654
5655 let mut captured_mouse_down = None;
5656
5657 move |event: &MouseUpEvent, phase, window, cx| match phase {
5658 // Clear the pending mouse down during the capture phase,
5659 // so that it happens even if another event handler stops
5660 // propagation.
5661 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5662 let pending_mouse_down = editor
5663 .pending_mouse_down
5664 .get_or_insert_with(Default::default)
5665 .clone();
5666
5667 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5668 if pending_mouse_down.is_some() && text_hitbox.is_hovered(window) {
5669 captured_mouse_down = pending_mouse_down.take();
5670 window.refresh();
5671 }
5672 }),
5673 // Fire click handlers during the bubble phase.
5674 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5675 if let Some(mouse_down) = captured_mouse_down.take() {
5676 let event = ClickEvent {
5677 down: mouse_down,
5678 up: event.clone(),
5679 };
5680 Self::click(editor, &event, &position_map, &text_hitbox, window, cx);
5681 }
5682 }),
5683 }
5684 });
5685
5686 window.on_mouse_event({
5687 let position_map = layout.position_map.clone();
5688 let editor = self.editor.clone();
5689 let text_hitbox = layout.text_hitbox.clone();
5690 let gutter_hitbox = layout.gutter_hitbox.clone();
5691
5692 move |event: &MouseMoveEvent, phase, window, cx| {
5693 if phase == DispatchPhase::Bubble {
5694 editor.update(cx, |editor, cx| {
5695 if editor.hover_state.focused(window, cx) {
5696 return;
5697 }
5698 if event.pressed_button == Some(MouseButton::Left)
5699 || event.pressed_button == Some(MouseButton::Middle)
5700 {
5701 Self::mouse_dragged(
5702 editor,
5703 event,
5704 &position_map,
5705 text_hitbox.bounds,
5706 window,
5707 cx,
5708 )
5709 }
5710
5711 Self::mouse_moved(
5712 editor,
5713 event,
5714 &position_map,
5715 &text_hitbox,
5716 &gutter_hitbox,
5717 window,
5718 cx,
5719 )
5720 });
5721 }
5722 }
5723 });
5724 }
5725
5726 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5727 bounds.top_right().x - self.style.scrollbar_width
5728 }
5729
5730 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5731 let style = &self.style;
5732 let font_size = style.text.font_size.to_pixels(window.rem_size());
5733 let layout = window
5734 .text_system()
5735 .shape_line(
5736 SharedString::from(" ".repeat(column)),
5737 font_size,
5738 &[TextRun {
5739 len: column,
5740 font: style.text.font(),
5741 color: Hsla::default(),
5742 background_color: None,
5743 underline: None,
5744 strikethrough: None,
5745 }],
5746 )
5747 .unwrap();
5748
5749 layout.width
5750 }
5751
5752 fn max_line_number_width(
5753 &self,
5754 snapshot: &EditorSnapshot,
5755 window: &mut Window,
5756 cx: &mut App,
5757 ) -> Pixels {
5758 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5759 self.column_pixels(digit_count, window, cx)
5760 }
5761
5762 fn shape_line_number(
5763 &self,
5764 text: SharedString,
5765 color: Hsla,
5766 window: &mut Window,
5767 ) -> anyhow::Result<ShapedLine> {
5768 let run = TextRun {
5769 len: text.len(),
5770 font: self.style.text.font(),
5771 color,
5772 background_color: None,
5773 underline: None,
5774 strikethrough: None,
5775 };
5776 window.text_system().shape_line(
5777 text,
5778 self.style.text.font_size.to_pixels(window.rem_size()),
5779 &[run],
5780 )
5781 }
5782}
5783
5784fn header_jump_data(
5785 snapshot: &EditorSnapshot,
5786 block_row_start: DisplayRow,
5787 height: u32,
5788 for_excerpt: &ExcerptInfo,
5789) -> JumpData {
5790 let range = &for_excerpt.range;
5791 let buffer = &for_excerpt.buffer;
5792 let jump_anchor = range
5793 .primary
5794 .as_ref()
5795 .map_or(range.context.start, |primary| primary.start);
5796
5797 let excerpt_start = range.context.start;
5798 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5799 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5800 0
5801 } else {
5802 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5803 jump_position.row.saturating_sub(excerpt_start_point.row)
5804 };
5805
5806 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5807 .saturating_sub(
5808 snapshot
5809 .scroll_anchor
5810 .scroll_position(&snapshot.display_snapshot)
5811 .y as u32,
5812 );
5813
5814 JumpData::MultiBufferPoint {
5815 excerpt_id: for_excerpt.id,
5816 anchor: jump_anchor,
5817 position: jump_position,
5818 line_offset_from_top,
5819 }
5820}
5821
5822fn inline_completion_accept_indicator(
5823 label: impl Into<SharedString>,
5824 icon: Option<IconName>,
5825 previewing: bool,
5826 focus_handle: FocusHandle,
5827 window: &Window,
5828 cx: &App,
5829) -> AnyElement {
5830 let use_hardcoded_linux_preview_binding;
5831
5832 #[cfg(target_os = "macos")]
5833 {
5834 use_hardcoded_linux_preview_binding = false;
5835 }
5836
5837 #[cfg(not(target_os = "macos"))]
5838 {
5839 use_hardcoded_linux_preview_binding = previewing;
5840 }
5841
5842 let accept_keystroke = if use_hardcoded_linux_preview_binding {
5843 Keystroke {
5844 modifiers: Default::default(),
5845 key: "enter".to_string(),
5846 key_char: None,
5847 }
5848 } else {
5849 let bindings = window.bindings_for_action_in(&crate::AcceptInlineCompletion, &focus_handle);
5850 if let Some(keystroke) = bindings
5851 .last()
5852 .and_then(|binding| binding.keystrokes().first())
5853 {
5854 // TODO: clone unnecessary once `use_hardcoded_linux_preview_binding` is removed.
5855 keystroke.clone()
5856 } else {
5857 return div().into_any();
5858 }
5859 };
5860
5861 let accept_key = h_flex()
5862 .px_0p5()
5863 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5864 .text_size(TextSize::XSmall.rems(cx))
5865 .text_color(cx.theme().colors().text)
5866 .gap_1()
5867 .when(!previewing, |parent| {
5868 parent.children(ui::render_modifiers(
5869 &accept_keystroke.modifiers,
5870 PlatformStyle::platform(),
5871 Some(Color::Default),
5872 false,
5873 ))
5874 })
5875 .child(accept_keystroke.key.clone());
5876
5877 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5878
5879 h_flex()
5880 .py_0p5()
5881 .pl_1()
5882 .pr(padding_right)
5883 .gap_1()
5884 .bg(cx.theme().colors().text_accent.opacity(0.15))
5885 .border_1()
5886 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5887 .rounded_md()
5888 .shadow_sm()
5889 .child(accept_key)
5890 .child(Label::new(label).size(LabelSize::Small))
5891 .when_some(icon, |element, icon| {
5892 element.child(
5893 div()
5894 .mt(px(1.5))
5895 .child(Icon::new(icon).size(IconSize::Small)),
5896 )
5897 })
5898 .into_any()
5899}
5900
5901#[allow(clippy::too_many_arguments)]
5902fn prepaint_gutter_button(
5903 button: IconButton,
5904 row: DisplayRow,
5905 line_height: Pixels,
5906 gutter_dimensions: &GutterDimensions,
5907 scroll_pixel_position: gpui::Point<Pixels>,
5908 gutter_hitbox: &Hitbox,
5909 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5910 window: &mut Window,
5911 cx: &mut App,
5912) -> AnyElement {
5913 let mut button = button.into_any_element();
5914 let available_space = size(
5915 AvailableSpace::MinContent,
5916 AvailableSpace::Definite(line_height),
5917 );
5918 let indicator_size = button.layout_as_root(available_space, window, cx);
5919
5920 let blame_width = gutter_dimensions.git_blame_entries_width;
5921 let gutter_width = rows_with_hunk_bounds
5922 .get(&row)
5923 .map(|bounds| bounds.size.width);
5924 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5925
5926 let mut x = left_offset;
5927 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5928 - indicator_size.width
5929 - left_offset;
5930 x += available_width / 2.;
5931
5932 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5933 y += (line_height - indicator_size.height) / 2.;
5934
5935 button.prepaint_as_root(
5936 gutter_hitbox.origin + point(x, y),
5937 available_space,
5938 window,
5939 cx,
5940 );
5941 button
5942}
5943
5944fn render_inline_blame_entry(
5945 blame: &gpui::Entity<GitBlame>,
5946 blame_entry: BlameEntry,
5947 style: &EditorStyle,
5948 workspace: Option<WeakEntity<Workspace>>,
5949 cx: &mut App,
5950) -> AnyElement {
5951 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5952
5953 let author = blame_entry.author.as_deref().unwrap_or_default();
5954 let summary_enabled = ProjectSettings::get_global(cx)
5955 .git
5956 .show_inline_commit_summary();
5957
5958 let text = match blame_entry.summary.as_ref() {
5959 Some(summary) if summary_enabled => {
5960 format!("{}, {} - {}", author, relative_timestamp, summary)
5961 }
5962 _ => format!("{}, {}", author, relative_timestamp),
5963 };
5964
5965 let details = blame.read(cx).details_for_entry(&blame_entry);
5966
5967 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5968
5969 h_flex()
5970 .id("inline-blame")
5971 .w_full()
5972 .font_family(style.text.font().family)
5973 .text_color(cx.theme().status().hint)
5974 .line_height(style.text.line_height)
5975 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5976 .child(text)
5977 .gap_2()
5978 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5979 .into_any()
5980}
5981
5982fn render_blame_entry(
5983 ix: usize,
5984 blame: &gpui::Entity<GitBlame>,
5985 blame_entry: BlameEntry,
5986 style: &EditorStyle,
5987 last_used_color: &mut Option<(PlayerColor, Oid)>,
5988 editor: Entity<Editor>,
5989 cx: &mut App,
5990) -> AnyElement {
5991 let mut sha_color = cx
5992 .theme()
5993 .players()
5994 .color_for_participant(blame_entry.sha.into());
5995 // If the last color we used is the same as the one we get for this line, but
5996 // the commit SHAs are different, then we try again to get a different color.
5997 match *last_used_color {
5998 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5999 let index: u32 = blame_entry.sha.into();
6000 sha_color = cx.theme().players().color_for_participant(index + 1);
6001 }
6002 _ => {}
6003 };
6004 last_used_color.replace((sha_color, blame_entry.sha));
6005
6006 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
6007
6008 let short_commit_id = blame_entry.sha.display_short();
6009
6010 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
6011 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
6012
6013 let details = blame.read(cx).details_for_entry(&blame_entry);
6014
6015 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
6016
6017 let tooltip =
6018 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
6019
6020 h_flex()
6021 .w_full()
6022 .justify_between()
6023 .font_family(style.text.font().family)
6024 .line_height(style.text.line_height)
6025 .id(("blame", ix))
6026 .text_color(cx.theme().status().hint)
6027 .pr_2()
6028 .gap_2()
6029 .child(
6030 h_flex()
6031 .items_center()
6032 .gap_2()
6033 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6034 .child(name),
6035 )
6036 .child(relative_timestamp)
6037 .on_mouse_down(MouseButton::Right, {
6038 let blame_entry = blame_entry.clone();
6039 let details = details.clone();
6040 move |event, window, cx| {
6041 deploy_blame_entry_context_menu(
6042 &blame_entry,
6043 details.as_ref(),
6044 editor.clone(),
6045 event.position,
6046 window,
6047 cx,
6048 );
6049 }
6050 })
6051 .hover(|style| style.bg(cx.theme().colors().element_hover))
6052 .when_some(
6053 details.and_then(|details| details.permalink),
6054 |this, url| {
6055 let url = url.clone();
6056 this.cursor_pointer().on_click(move |_, _, cx| {
6057 cx.stop_propagation();
6058 cx.open_url(url.as_str())
6059 })
6060 },
6061 )
6062 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6063 .into_any()
6064}
6065
6066fn deploy_blame_entry_context_menu(
6067 blame_entry: &BlameEntry,
6068 details: Option<&CommitDetails>,
6069 editor: Entity<Editor>,
6070 position: gpui::Point<Pixels>,
6071 window: &mut Window,
6072 cx: &mut App,
6073) {
6074 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6075 let sha = format!("{}", blame_entry.sha);
6076 menu.on_blur_subscription(Subscription::new(|| {}))
6077 .entry("Copy commit SHA", None, move |_, cx| {
6078 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6079 })
6080 .when_some(
6081 details.and_then(|details| details.permalink.clone()),
6082 |this, url| {
6083 this.entry("Open permalink", None, move |_, cx| {
6084 cx.open_url(url.as_str())
6085 })
6086 },
6087 )
6088 });
6089
6090 editor.update(cx, move |editor, cx| {
6091 editor.mouse_context_menu = Some(MouseContextMenu::new(
6092 MenuPosition::PinnedToScreen(position),
6093 context_menu,
6094 window,
6095 cx,
6096 ));
6097 cx.notify();
6098 });
6099}
6100
6101#[derive(Debug)]
6102pub(crate) struct LineWithInvisibles {
6103 fragments: SmallVec<[LineFragment; 1]>,
6104 invisibles: Vec<Invisible>,
6105 len: usize,
6106 width: Pixels,
6107 font_size: Pixels,
6108}
6109
6110#[allow(clippy::large_enum_variant)]
6111enum LineFragment {
6112 Text(ShapedLine),
6113 Element {
6114 element: Option<AnyElement>,
6115 size: Size<Pixels>,
6116 len: usize,
6117 },
6118}
6119
6120impl fmt::Debug for LineFragment {
6121 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6122 match self {
6123 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6124 LineFragment::Element { size, len, .. } => f
6125 .debug_struct("Element")
6126 .field("size", size)
6127 .field("len", len)
6128 .finish(),
6129 }
6130 }
6131}
6132
6133impl LineWithInvisibles {
6134 #[allow(clippy::too_many_arguments)]
6135 fn from_chunks<'a>(
6136 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6137 editor_style: &EditorStyle,
6138 max_line_len: usize,
6139 max_line_count: usize,
6140 editor_mode: EditorMode,
6141 text_width: Pixels,
6142 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6143 window: &mut Window,
6144 cx: &mut App,
6145 ) -> Vec<Self> {
6146 let text_style = &editor_style.text;
6147 let mut layouts = Vec::with_capacity(max_line_count);
6148 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6149 let mut line = String::new();
6150 let mut invisibles = Vec::new();
6151 let mut width = Pixels::ZERO;
6152 let mut len = 0;
6153 let mut styles = Vec::new();
6154 let mut non_whitespace_added = false;
6155 let mut row = 0;
6156 let mut line_exceeded_max_len = false;
6157 let font_size = text_style.font_size.to_pixels(window.rem_size());
6158
6159 let ellipsis = SharedString::from("⋯");
6160
6161 for highlighted_chunk in chunks.chain([HighlightedChunk {
6162 text: "\n",
6163 style: None,
6164 is_tab: false,
6165 replacement: None,
6166 }]) {
6167 if let Some(replacement) = highlighted_chunk.replacement {
6168 if !line.is_empty() {
6169 let shaped_line = window
6170 .text_system()
6171 .shape_line(line.clone().into(), font_size, &styles)
6172 .unwrap();
6173 width += shaped_line.width;
6174 len += shaped_line.len;
6175 fragments.push(LineFragment::Text(shaped_line));
6176 line.clear();
6177 styles.clear();
6178 }
6179
6180 match replacement {
6181 ChunkReplacement::Renderer(renderer) => {
6182 let available_width = if renderer.constrain_width {
6183 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6184 ellipsis.clone()
6185 } else {
6186 SharedString::from(Arc::from(highlighted_chunk.text))
6187 };
6188 let shaped_line = window
6189 .text_system()
6190 .shape_line(
6191 chunk,
6192 font_size,
6193 &[text_style.to_run(highlighted_chunk.text.len())],
6194 )
6195 .unwrap();
6196 AvailableSpace::Definite(shaped_line.width)
6197 } else {
6198 AvailableSpace::MinContent
6199 };
6200
6201 let mut element = (renderer.render)(&mut ChunkRendererContext {
6202 context: cx,
6203 window,
6204 max_width: text_width,
6205 });
6206 let line_height = text_style.line_height_in_pixels(window.rem_size());
6207 let size = element.layout_as_root(
6208 size(available_width, AvailableSpace::Definite(line_height)),
6209 window,
6210 cx,
6211 );
6212
6213 width += size.width;
6214 len += highlighted_chunk.text.len();
6215 fragments.push(LineFragment::Element {
6216 element: Some(element),
6217 size,
6218 len: highlighted_chunk.text.len(),
6219 });
6220 }
6221 ChunkReplacement::Str(x) => {
6222 let text_style = if let Some(style) = highlighted_chunk.style {
6223 Cow::Owned(text_style.clone().highlight(style))
6224 } else {
6225 Cow::Borrowed(text_style)
6226 };
6227
6228 let run = TextRun {
6229 len: x.len(),
6230 font: text_style.font(),
6231 color: text_style.color,
6232 background_color: text_style.background_color,
6233 underline: text_style.underline,
6234 strikethrough: text_style.strikethrough,
6235 };
6236 let line_layout = window
6237 .text_system()
6238 .shape_line(x, font_size, &[run])
6239 .unwrap()
6240 .with_len(highlighted_chunk.text.len());
6241
6242 width += line_layout.width;
6243 len += highlighted_chunk.text.len();
6244 fragments.push(LineFragment::Text(line_layout))
6245 }
6246 }
6247 } else {
6248 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6249 if ix > 0 {
6250 let shaped_line = window
6251 .text_system()
6252 .shape_line(line.clone().into(), font_size, &styles)
6253 .unwrap();
6254 width += shaped_line.width;
6255 len += shaped_line.len;
6256 fragments.push(LineFragment::Text(shaped_line));
6257 layouts.push(Self {
6258 width: mem::take(&mut width),
6259 len: mem::take(&mut len),
6260 fragments: mem::take(&mut fragments),
6261 invisibles: std::mem::take(&mut invisibles),
6262 font_size,
6263 });
6264
6265 line.clear();
6266 styles.clear();
6267 row += 1;
6268 line_exceeded_max_len = false;
6269 non_whitespace_added = false;
6270 if row == max_line_count {
6271 return layouts;
6272 }
6273 }
6274
6275 if !line_chunk.is_empty() && !line_exceeded_max_len {
6276 let text_style = if let Some(style) = highlighted_chunk.style {
6277 Cow::Owned(text_style.clone().highlight(style))
6278 } else {
6279 Cow::Borrowed(text_style)
6280 };
6281
6282 if line.len() + line_chunk.len() > max_line_len {
6283 let mut chunk_len = max_line_len - line.len();
6284 while !line_chunk.is_char_boundary(chunk_len) {
6285 chunk_len -= 1;
6286 }
6287 line_chunk = &line_chunk[..chunk_len];
6288 line_exceeded_max_len = true;
6289 }
6290
6291 styles.push(TextRun {
6292 len: line_chunk.len(),
6293 font: text_style.font(),
6294 color: text_style.color,
6295 background_color: text_style.background_color,
6296 underline: text_style.underline,
6297 strikethrough: text_style.strikethrough,
6298 });
6299
6300 if editor_mode == EditorMode::Full {
6301 // Line wrap pads its contents with fake whitespaces,
6302 // avoid printing them
6303 let is_soft_wrapped = is_row_soft_wrapped(row);
6304 if highlighted_chunk.is_tab {
6305 if non_whitespace_added || !is_soft_wrapped {
6306 invisibles.push(Invisible::Tab {
6307 line_start_offset: line.len(),
6308 line_end_offset: line.len() + line_chunk.len(),
6309 });
6310 }
6311 } else {
6312 invisibles.extend(line_chunk.char_indices().filter_map(
6313 |(index, c)| {
6314 let is_whitespace = c.is_whitespace();
6315 non_whitespace_added |= !is_whitespace;
6316 if is_whitespace
6317 && (non_whitespace_added || !is_soft_wrapped)
6318 {
6319 Some(Invisible::Whitespace {
6320 line_offset: line.len() + index,
6321 })
6322 } else {
6323 None
6324 }
6325 },
6326 ))
6327 }
6328 }
6329
6330 line.push_str(line_chunk);
6331 }
6332 }
6333 }
6334 }
6335
6336 layouts
6337 }
6338
6339 #[allow(clippy::too_many_arguments)]
6340 fn prepaint(
6341 &mut self,
6342 line_height: Pixels,
6343 scroll_pixel_position: gpui::Point<Pixels>,
6344 row: DisplayRow,
6345 content_origin: gpui::Point<Pixels>,
6346 line_elements: &mut SmallVec<[AnyElement; 1]>,
6347 window: &mut Window,
6348 cx: &mut App,
6349 ) {
6350 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6351 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6352 for fragment in &mut self.fragments {
6353 match fragment {
6354 LineFragment::Text(line) => {
6355 fragment_origin.x += line.width;
6356 }
6357 LineFragment::Element { element, size, .. } => {
6358 let mut element = element
6359 .take()
6360 .expect("you can't prepaint LineWithInvisibles twice");
6361
6362 // Center the element vertically within the line.
6363 let mut element_origin = fragment_origin;
6364 element_origin.y += (line_height - size.height) / 2.;
6365 element.prepaint_at(element_origin, window, cx);
6366 line_elements.push(element);
6367
6368 fragment_origin.x += size.width;
6369 }
6370 }
6371 }
6372 }
6373
6374 #[allow(clippy::too_many_arguments)]
6375 fn draw(
6376 &self,
6377 layout: &EditorLayout,
6378 row: DisplayRow,
6379 content_origin: gpui::Point<Pixels>,
6380 whitespace_setting: ShowWhitespaceSetting,
6381 selection_ranges: &[Range<DisplayPoint>],
6382 window: &mut Window,
6383 cx: &mut App,
6384 ) {
6385 let line_height = layout.position_map.line_height;
6386 let line_y = line_height
6387 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6388
6389 let mut fragment_origin =
6390 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6391
6392 for fragment in &self.fragments {
6393 match fragment {
6394 LineFragment::Text(line) => {
6395 line.paint(fragment_origin, line_height, window, cx)
6396 .log_err();
6397 fragment_origin.x += line.width;
6398 }
6399 LineFragment::Element { size, .. } => {
6400 fragment_origin.x += size.width;
6401 }
6402 }
6403 }
6404
6405 self.draw_invisibles(
6406 selection_ranges,
6407 layout,
6408 content_origin,
6409 line_y,
6410 row,
6411 line_height,
6412 whitespace_setting,
6413 window,
6414 cx,
6415 );
6416 }
6417
6418 #[allow(clippy::too_many_arguments)]
6419 fn draw_invisibles(
6420 &self,
6421 selection_ranges: &[Range<DisplayPoint>],
6422 layout: &EditorLayout,
6423 content_origin: gpui::Point<Pixels>,
6424 line_y: Pixels,
6425 row: DisplayRow,
6426 line_height: Pixels,
6427 whitespace_setting: ShowWhitespaceSetting,
6428 window: &mut Window,
6429 cx: &mut App,
6430 ) {
6431 let extract_whitespace_info = |invisible: &Invisible| {
6432 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6433 Invisible::Tab {
6434 line_start_offset,
6435 line_end_offset,
6436 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6437 Invisible::Whitespace { line_offset } => {
6438 (*line_offset, line_offset + 1, &layout.space_invisible)
6439 }
6440 };
6441
6442 let x_offset = self.x_for_index(token_offset);
6443 let invisible_offset =
6444 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6445 let origin = content_origin
6446 + gpui::point(
6447 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6448 line_y,
6449 );
6450
6451 (
6452 [token_offset, token_end_offset],
6453 Box::new(move |window: &mut Window, cx: &mut App| {
6454 invisible_symbol
6455 .paint(origin, line_height, window, cx)
6456 .log_err();
6457 }),
6458 )
6459 };
6460
6461 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6462 match whitespace_setting {
6463 ShowWhitespaceSetting::None => (),
6464 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6465 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6466 let invisible_point = DisplayPoint::new(row, start as u32);
6467 if !selection_ranges
6468 .iter()
6469 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6470 {
6471 return;
6472 }
6473
6474 paint(window, cx);
6475 }),
6476
6477 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6478 // - It is a tab
6479 // - It is adjacent to an edge (start or end)
6480 // - It is adjacent to a whitespace (left or right)
6481 ShowWhitespaceSetting::Boundary => {
6482 // 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
6483 // the above cases.
6484 // Note: We zip in the original `invisibles` to check for tab equality
6485 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6486 for (([start, end], paint), invisible) in
6487 invisible_iter.zip_eq(self.invisibles.iter())
6488 {
6489 let should_render = match (&last_seen, invisible) {
6490 (_, Invisible::Tab { .. }) => true,
6491 (Some((_, last_end, _)), _) => *last_end == start,
6492 _ => false,
6493 };
6494
6495 if should_render || start == 0 || end == self.len {
6496 paint(window, cx);
6497
6498 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6499 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6500 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6501 // Note that we need to make sure that the last one is actually adjacent
6502 if !should_render_last && last_end == start {
6503 paint_last(window, cx);
6504 }
6505 }
6506 }
6507
6508 // Manually render anything within a selection
6509 let invisible_point = DisplayPoint::new(row, start as u32);
6510 if selection_ranges.iter().any(|region| {
6511 region.start <= invisible_point && invisible_point < region.end
6512 }) {
6513 paint(window, cx);
6514 }
6515
6516 last_seen = Some((should_render, end, paint));
6517 }
6518 }
6519 }
6520 }
6521
6522 pub fn x_for_index(&self, index: usize) -> Pixels {
6523 let mut fragment_start_x = Pixels::ZERO;
6524 let mut fragment_start_index = 0;
6525
6526 for fragment in &self.fragments {
6527 match fragment {
6528 LineFragment::Text(shaped_line) => {
6529 let fragment_end_index = fragment_start_index + shaped_line.len;
6530 if index < fragment_end_index {
6531 return fragment_start_x
6532 + shaped_line.x_for_index(index - fragment_start_index);
6533 }
6534 fragment_start_x += shaped_line.width;
6535 fragment_start_index = fragment_end_index;
6536 }
6537 LineFragment::Element { len, size, .. } => {
6538 let fragment_end_index = fragment_start_index + len;
6539 if index < fragment_end_index {
6540 return fragment_start_x;
6541 }
6542 fragment_start_x += size.width;
6543 fragment_start_index = fragment_end_index;
6544 }
6545 }
6546 }
6547
6548 fragment_start_x
6549 }
6550
6551 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6552 let mut fragment_start_x = Pixels::ZERO;
6553 let mut fragment_start_index = 0;
6554
6555 for fragment in &self.fragments {
6556 match fragment {
6557 LineFragment::Text(shaped_line) => {
6558 let fragment_end_x = fragment_start_x + shaped_line.width;
6559 if x < fragment_end_x {
6560 return Some(
6561 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6562 );
6563 }
6564 fragment_start_x = fragment_end_x;
6565 fragment_start_index += shaped_line.len;
6566 }
6567 LineFragment::Element { len, size, .. } => {
6568 let fragment_end_x = fragment_start_x + size.width;
6569 if x < fragment_end_x {
6570 return Some(fragment_start_index);
6571 }
6572 fragment_start_index += len;
6573 fragment_start_x = fragment_end_x;
6574 }
6575 }
6576 }
6577
6578 None
6579 }
6580
6581 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6582 let mut fragment_start_index = 0;
6583
6584 for fragment in &self.fragments {
6585 match fragment {
6586 LineFragment::Text(shaped_line) => {
6587 let fragment_end_index = fragment_start_index + shaped_line.len;
6588 if index < fragment_end_index {
6589 return shaped_line.font_id_for_index(index - fragment_start_index);
6590 }
6591 fragment_start_index = fragment_end_index;
6592 }
6593 LineFragment::Element { len, .. } => {
6594 let fragment_end_index = fragment_start_index + len;
6595 if index < fragment_end_index {
6596 return None;
6597 }
6598 fragment_start_index = fragment_end_index;
6599 }
6600 }
6601 }
6602
6603 None
6604 }
6605}
6606
6607#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6608enum Invisible {
6609 /// A tab character
6610 ///
6611 /// A tab character is internally represented by spaces (configured by the user's tab width)
6612 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6613 /// adjacency checks.
6614 Tab {
6615 line_start_offset: usize,
6616 line_end_offset: usize,
6617 },
6618 Whitespace {
6619 line_offset: usize,
6620 },
6621}
6622
6623impl EditorElement {
6624 /// Returns the rem size to use when rendering the [`EditorElement`].
6625 ///
6626 /// This allows UI elements to scale based on the `buffer_font_size`.
6627 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6628 match self.editor.read(cx).mode {
6629 EditorMode::Full => {
6630 let buffer_font_size = self.style.text.font_size;
6631 match buffer_font_size {
6632 AbsoluteLength::Pixels(pixels) => {
6633 let rem_size_scale = {
6634 // Our default UI font size is 14px on a 16px base scale.
6635 // This means the default UI font size is 0.875rems.
6636 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6637
6638 // We then determine the delta between a single rem and the default font
6639 // size scale.
6640 let default_font_size_delta = 1. - default_font_size_scale;
6641
6642 // Finally, we add this delta to 1rem to get the scale factor that
6643 // should be used to scale up the UI.
6644 1. + default_font_size_delta
6645 };
6646
6647 Some(pixels * rem_size_scale)
6648 }
6649 AbsoluteLength::Rems(rems) => {
6650 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6651 }
6652 }
6653 }
6654 // We currently use single-line and auto-height editors in UI contexts,
6655 // so we don't want to scale everything with the buffer font size, as it
6656 // ends up looking off.
6657 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6658 }
6659 }
6660}
6661
6662impl Element for EditorElement {
6663 type RequestLayoutState = ();
6664 type PrepaintState = EditorLayout;
6665
6666 fn id(&self) -> Option<ElementId> {
6667 None
6668 }
6669
6670 fn request_layout(
6671 &mut self,
6672 _: Option<&GlobalElementId>,
6673 window: &mut Window,
6674 cx: &mut App,
6675 ) -> (gpui::LayoutId, ()) {
6676 let rem_size = self.rem_size(cx);
6677 window.with_rem_size(rem_size, |window| {
6678 self.editor.update(cx, |editor, cx| {
6679 editor.set_style(self.style.clone(), window, cx);
6680
6681 let layout_id = match editor.mode {
6682 EditorMode::SingleLine { auto_width } => {
6683 let rem_size = window.rem_size();
6684
6685 let height = self.style.text.line_height_in_pixels(rem_size);
6686 if auto_width {
6687 let editor_handle = cx.entity().clone();
6688 let style = self.style.clone();
6689 window.request_measured_layout(
6690 Style::default(),
6691 move |_, _, window, cx| {
6692 let editor_snapshot = editor_handle
6693 .update(cx, |editor, cx| editor.snapshot(window, cx));
6694 let line = Self::layout_lines(
6695 DisplayRow(0)..DisplayRow(1),
6696 &editor_snapshot,
6697 &style,
6698 px(f32::MAX),
6699 |_| false, // Single lines never soft wrap
6700 window,
6701 cx,
6702 )
6703 .pop()
6704 .unwrap();
6705
6706 let font_id =
6707 window.text_system().resolve_font(&style.text.font());
6708 let font_size =
6709 style.text.font_size.to_pixels(window.rem_size());
6710 let em_width =
6711 window.text_system().em_width(font_id, font_size).unwrap();
6712
6713 size(line.width + em_width, height)
6714 },
6715 )
6716 } else {
6717 let mut style = Style::default();
6718 style.size.height = height.into();
6719 style.size.width = relative(1.).into();
6720 window.request_layout(style, None, cx)
6721 }
6722 }
6723 EditorMode::AutoHeight { max_lines } => {
6724 let editor_handle = cx.entity().clone();
6725 let max_line_number_width =
6726 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6727 window.request_measured_layout(
6728 Style::default(),
6729 move |known_dimensions, available_space, window, cx| {
6730 editor_handle
6731 .update(cx, |editor, cx| {
6732 compute_auto_height_layout(
6733 editor,
6734 max_lines,
6735 max_line_number_width,
6736 known_dimensions,
6737 available_space.width,
6738 window,
6739 cx,
6740 )
6741 })
6742 .unwrap_or_default()
6743 },
6744 )
6745 }
6746 EditorMode::Full => {
6747 let mut style = Style::default();
6748 style.size.width = relative(1.).into();
6749 style.size.height = relative(1.).into();
6750 window.request_layout(style, None, cx)
6751 }
6752 };
6753
6754 (layout_id, ())
6755 })
6756 })
6757 }
6758
6759 fn prepaint(
6760 &mut self,
6761 _: Option<&GlobalElementId>,
6762 bounds: Bounds<Pixels>,
6763 _: &mut Self::RequestLayoutState,
6764 window: &mut Window,
6765 cx: &mut App,
6766 ) -> Self::PrepaintState {
6767 let text_style = TextStyleRefinement {
6768 font_size: Some(self.style.text.font_size),
6769 line_height: Some(self.style.text.line_height),
6770 ..Default::default()
6771 };
6772 let focus_handle = self.editor.focus_handle(cx);
6773 window.set_view_id(self.editor.entity_id());
6774 window.set_focus_handle(&focus_handle, cx);
6775
6776 let rem_size = self.rem_size(cx);
6777 window.with_rem_size(rem_size, |window| {
6778 window.with_text_style(Some(text_style), |window| {
6779 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6780 let mut snapshot = self
6781 .editor
6782 .update(cx, |editor, cx| editor.snapshot(window, cx));
6783 let style = self.style.clone();
6784
6785 let font_id = window.text_system().resolve_font(&style.text.font());
6786 let font_size = style.text.font_size.to_pixels(window.rem_size());
6787 let line_height = style.text.line_height_in_pixels(window.rem_size());
6788 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6789 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6790
6791 let letter_size = size(em_width, line_height);
6792
6793 let gutter_dimensions = snapshot
6794 .gutter_dimensions(
6795 font_id,
6796 font_size,
6797 self.max_line_number_width(&snapshot, window, cx),
6798 cx,
6799 )
6800 .unwrap_or_default();
6801 let text_width = bounds.size.width - gutter_dimensions.width;
6802
6803 let editor_width = text_width - gutter_dimensions.margin - em_width;
6804
6805 snapshot = self.editor.update(cx, |editor, cx| {
6806 editor.last_bounds = Some(bounds);
6807 editor.gutter_dimensions = gutter_dimensions;
6808 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6809
6810 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6811 snapshot
6812 } else {
6813 let wrap_width = match editor.soft_wrap_mode(cx) {
6814 SoftWrap::GitDiff => None,
6815 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6816 SoftWrap::EditorWidth => Some(editor_width),
6817 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6818 SoftWrap::Bounded(column) => {
6819 Some(editor_width.min(column as f32 * em_advance))
6820 }
6821 };
6822
6823 if editor.set_wrap_width(wrap_width, cx) {
6824 editor.snapshot(window, cx)
6825 } else {
6826 snapshot
6827 }
6828 }
6829 });
6830
6831 let wrap_guides = self
6832 .editor
6833 .read(cx)
6834 .wrap_guides(cx)
6835 .iter()
6836 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6837 .collect::<SmallVec<[_; 2]>>();
6838
6839 let hitbox = window.insert_hitbox(bounds, false);
6840 let gutter_hitbox =
6841 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6842 let text_hitbox = window.insert_hitbox(
6843 Bounds {
6844 origin: gutter_hitbox.top_right(),
6845 size: size(text_width, bounds.size.height),
6846 },
6847 false,
6848 );
6849 // Offset the content_bounds from the text_bounds by the gutter margin (which
6850 // is roughly half a character wide) to make hit testing work more like how we want.
6851 let content_origin =
6852 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6853
6854 let scrollbar_bounds =
6855 Bounds::from_corners(content_origin, bounds.bottom_right());
6856
6857 let height_in_lines = scrollbar_bounds.size.height / line_height;
6858
6859 // NOTE: The max row number in the current file, minus one
6860 let max_row = snapshot.max_point().row().as_f32();
6861
6862 // NOTE: The max scroll position for the top of the window
6863 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6864 (max_row - height_in_lines + 1.).max(0.)
6865 } else {
6866 let settings = EditorSettings::get_global(cx);
6867 match settings.scroll_beyond_last_line {
6868 ScrollBeyondLastLine::OnePage => max_row,
6869 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6870 ScrollBeyondLastLine::VerticalScrollMargin => {
6871 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6872 .max(0.)
6873 }
6874 }
6875 };
6876
6877 // TODO: Autoscrolling for both axes
6878 let mut autoscroll_request = None;
6879 let mut autoscroll_containing_element = false;
6880 let mut autoscroll_horizontally = false;
6881 self.editor.update(cx, |editor, cx| {
6882 autoscroll_request = editor.autoscroll_request();
6883 autoscroll_containing_element =
6884 autoscroll_request.is_some() || editor.has_pending_selection();
6885 // TODO: Is this horizontal or vertical?!
6886 autoscroll_horizontally = editor.autoscroll_vertically(
6887 bounds,
6888 line_height,
6889 max_scroll_top,
6890 window,
6891 cx,
6892 );
6893 snapshot = editor.snapshot(window, cx);
6894 });
6895
6896 let mut scroll_position = snapshot.scroll_position();
6897 // The scroll position is a fractional point, the whole number of which represents
6898 // the top of the window in terms of display rows.
6899 let start_row = DisplayRow(scroll_position.y as u32);
6900 let max_row = snapshot.max_point().row();
6901 let end_row = cmp::min(
6902 (scroll_position.y + height_in_lines).ceil() as u32,
6903 max_row.next_row().0,
6904 );
6905 let end_row = DisplayRow(end_row);
6906
6907 let row_infos = snapshot
6908 .row_infos(start_row)
6909 .take((start_row..end_row).len())
6910 .collect::<Vec<RowInfo>>();
6911 let is_row_soft_wrapped = |row: usize| {
6912 row_infos
6913 .get(row)
6914 .map_or(true, |info| info.buffer_row.is_none())
6915 };
6916
6917 let start_anchor = if start_row == Default::default() {
6918 Anchor::min()
6919 } else {
6920 snapshot.buffer_snapshot.anchor_before(
6921 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6922 )
6923 };
6924 let end_anchor = if end_row > max_row {
6925 Anchor::max()
6926 } else {
6927 snapshot.buffer_snapshot.anchor_before(
6928 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6929 )
6930 };
6931
6932 let mut highlighted_rows = self
6933 .editor
6934 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6935
6936 for (ix, row_info) in row_infos.iter().enumerate() {
6937 let color = match row_info.diff_status {
6938 Some(DiffHunkStatus::Added) => style.status.created_background,
6939 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6940 _ => continue,
6941 };
6942 highlighted_rows
6943 .entry(start_row + DisplayRow(ix as u32))
6944 .or_insert(color);
6945 }
6946
6947 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6948 start_anchor..end_anchor,
6949 &snapshot.display_snapshot,
6950 cx.theme().colors(),
6951 );
6952 let highlighted_gutter_ranges =
6953 self.editor.read(cx).gutter_highlights_in_range(
6954 start_anchor..end_anchor,
6955 &snapshot.display_snapshot,
6956 cx,
6957 );
6958
6959 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6960 start_anchor..end_anchor,
6961 &snapshot.display_snapshot,
6962 cx,
6963 );
6964
6965 let (local_selections, selected_buffer_ids): (
6966 Vec<Selection<Point>>,
6967 Vec<BufferId>,
6968 ) = self.editor.update(cx, |editor, cx| {
6969 let all_selections = editor.selections.all::<Point>(cx);
6970 let selected_buffer_ids = if editor.is_singleton(cx) {
6971 Vec::new()
6972 } else {
6973 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6974
6975 for selection in all_selections {
6976 for buffer_id in snapshot
6977 .buffer_snapshot
6978 .buffer_ids_for_range(selection.range())
6979 {
6980 if selected_buffer_ids.last() != Some(&buffer_id) {
6981 selected_buffer_ids.push(buffer_id);
6982 }
6983 }
6984 }
6985
6986 selected_buffer_ids
6987 };
6988
6989 let mut selections = editor
6990 .selections
6991 .disjoint_in_range(start_anchor..end_anchor, cx);
6992 selections.extend(editor.selections.pending(cx));
6993
6994 (selections, selected_buffer_ids)
6995 });
6996
6997 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6998 start_anchor,
6999 end_anchor,
7000 &local_selections,
7001 &snapshot,
7002 start_row,
7003 end_row,
7004 window,
7005 cx,
7006 );
7007
7008 let line_numbers = self.layout_line_numbers(
7009 Some(&gutter_hitbox),
7010 gutter_dimensions,
7011 line_height,
7012 scroll_position,
7013 start_row..end_row,
7014 &row_infos,
7015 newest_selection_head,
7016 &snapshot,
7017 window,
7018 cx,
7019 );
7020
7021 let mut crease_toggles =
7022 window.with_element_namespace("crease_toggles", |window| {
7023 self.layout_crease_toggles(
7024 start_row..end_row,
7025 &row_infos,
7026 &active_rows,
7027 &snapshot,
7028 window,
7029 cx,
7030 )
7031 });
7032 let crease_trailers =
7033 window.with_element_namespace("crease_trailers", |window| {
7034 self.layout_crease_trailers(
7035 row_infos.iter().copied(),
7036 &snapshot,
7037 window,
7038 cx,
7039 )
7040 });
7041
7042 let display_hunks = self.layout_gutter_diff_hunks(
7043 line_height,
7044 &gutter_hitbox,
7045 start_row..end_row,
7046 &snapshot,
7047 window,
7048 cx,
7049 );
7050
7051 let mut line_layouts = Self::layout_lines(
7052 start_row..end_row,
7053 &snapshot,
7054 &self.style,
7055 editor_width,
7056 is_row_soft_wrapped,
7057 window,
7058 cx,
7059 );
7060
7061 let longest_line_blame_width = self
7062 .editor
7063 .update(cx, |editor, cx| {
7064 if !editor.show_git_blame_inline {
7065 return None;
7066 }
7067 let blame = editor.blame.as_ref()?;
7068 let blame_entry = blame
7069 .update(cx, |blame, cx| {
7070 let row_infos =
7071 snapshot.row_infos(snapshot.longest_row()).next()?;
7072 blame.blame_for_rows(&[row_infos], cx).next()
7073 })
7074 .flatten()?;
7075 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7076 let mut element = render_inline_blame_entry(
7077 blame,
7078 blame_entry,
7079 &style,
7080 workspace,
7081 cx,
7082 );
7083 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7084 Some(
7085 element
7086 .layout_as_root(AvailableSpace::min_size(), window, cx)
7087 .width
7088 + inline_blame_padding,
7089 )
7090 })
7091 .unwrap_or(Pixels::ZERO);
7092
7093 let longest_line_width = layout_line(
7094 snapshot.longest_row(),
7095 &snapshot,
7096 &style,
7097 editor_width,
7098 is_row_soft_wrapped,
7099 window,
7100 cx,
7101 )
7102 .width;
7103
7104 let scrollbar_range_data = ScrollbarRangeData::new(
7105 scrollbar_bounds,
7106 letter_size,
7107 &snapshot,
7108 longest_line_width,
7109 longest_line_blame_width,
7110 &style,
7111 cx,
7112 );
7113
7114 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7115 let mut scroll_width = scroll_range_bounds.size.width;
7116
7117 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7118 snapshot.sticky_header_excerpt(start_row)
7119 } else {
7120 None
7121 };
7122 let sticky_header_excerpt_id =
7123 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7124
7125 let blocks = window.with_element_namespace("blocks", |window| {
7126 self.render_blocks(
7127 start_row..end_row,
7128 &snapshot,
7129 &hitbox,
7130 &text_hitbox,
7131 editor_width,
7132 &mut scroll_width,
7133 &gutter_dimensions,
7134 em_width,
7135 gutter_dimensions.full_width(),
7136 line_height,
7137 &line_layouts,
7138 &local_selections,
7139 &selected_buffer_ids,
7140 is_row_soft_wrapped,
7141 sticky_header_excerpt_id,
7142 window,
7143 cx,
7144 )
7145 });
7146 let mut blocks = match blocks {
7147 Ok(blocks) => blocks,
7148 Err(resized_blocks) => {
7149 self.editor.update(cx, |editor, cx| {
7150 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7151 });
7152 return self.prepaint(None, bounds, &mut (), window, cx);
7153 }
7154 };
7155
7156 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7157 window.with_element_namespace("blocks", |window| {
7158 self.layout_sticky_buffer_header(
7159 sticky_header_excerpt,
7160 scroll_position.y,
7161 line_height,
7162 &snapshot,
7163 &hitbox,
7164 &selected_buffer_ids,
7165 window,
7166 cx,
7167 )
7168 })
7169 });
7170
7171 let start_buffer_row =
7172 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7173 let end_buffer_row =
7174 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7175
7176 let scroll_max = point(
7177 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7178 max_row.as_f32(),
7179 );
7180
7181 self.editor.update(cx, |editor, cx| {
7182 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7183
7184 let autoscrolled = if autoscroll_horizontally {
7185 editor.autoscroll_horizontally(
7186 start_row,
7187 editor_width - (letter_size.width / 2.0),
7188 scroll_width,
7189 em_width,
7190 &line_layouts,
7191 cx,
7192 )
7193 } else {
7194 false
7195 };
7196
7197 if clamped || autoscrolled {
7198 snapshot = editor.snapshot(window, cx);
7199 scroll_position = snapshot.scroll_position();
7200 }
7201 });
7202
7203 let scroll_pixel_position = point(
7204 scroll_position.x * em_width,
7205 scroll_position.y * line_height,
7206 );
7207
7208 let indent_guides = self.layout_indent_guides(
7209 content_origin,
7210 text_hitbox.origin,
7211 start_buffer_row..end_buffer_row,
7212 scroll_pixel_position,
7213 line_height,
7214 &snapshot,
7215 window,
7216 cx,
7217 );
7218
7219 let crease_trailers =
7220 window.with_element_namespace("crease_trailers", |window| {
7221 self.prepaint_crease_trailers(
7222 crease_trailers,
7223 &line_layouts,
7224 line_height,
7225 content_origin,
7226 scroll_pixel_position,
7227 em_width,
7228 window,
7229 cx,
7230 )
7231 });
7232
7233 let mut inline_blame = None;
7234 if let Some(newest_selection_head) = newest_selection_head {
7235 let display_row = newest_selection_head.row();
7236 if (start_row..end_row).contains(&display_row) {
7237 let line_ix = display_row.minus(start_row) as usize;
7238 let row_info = &row_infos[line_ix];
7239 let line_layout = &line_layouts[line_ix];
7240 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7241 inline_blame = self.layout_inline_blame(
7242 display_row,
7243 row_info,
7244 line_layout,
7245 crease_trailer_layout,
7246 em_width,
7247 content_origin,
7248 scroll_pixel_position,
7249 line_height,
7250 window,
7251 cx,
7252 );
7253 }
7254 }
7255
7256 let blamed_display_rows = self.layout_blame_entries(
7257 &row_infos,
7258 em_width,
7259 scroll_position,
7260 line_height,
7261 &gutter_hitbox,
7262 gutter_dimensions.git_blame_entries_width,
7263 window,
7264 cx,
7265 );
7266
7267 let scroll_max = point(
7268 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7269 max_scroll_top,
7270 );
7271
7272 self.editor.update(cx, |editor, cx| {
7273 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7274
7275 let autoscrolled = if autoscroll_horizontally {
7276 editor.autoscroll_horizontally(
7277 start_row,
7278 editor_width - (letter_size.width / 2.0),
7279 scroll_width,
7280 em_width,
7281 &line_layouts,
7282 cx,
7283 )
7284 } else {
7285 false
7286 };
7287
7288 if clamped || autoscrolled {
7289 snapshot = editor.snapshot(window, cx);
7290 scroll_position = snapshot.scroll_position();
7291 }
7292 });
7293
7294 let line_elements = self.prepaint_lines(
7295 start_row,
7296 &mut line_layouts,
7297 line_height,
7298 scroll_pixel_position,
7299 content_origin,
7300 window,
7301 cx,
7302 );
7303
7304 let mut block_start_rows = HashSet::default();
7305
7306 window.with_element_namespace("blocks", |window| {
7307 self.layout_blocks(
7308 &mut blocks,
7309 &mut block_start_rows,
7310 &hitbox,
7311 line_height,
7312 scroll_pixel_position,
7313 window,
7314 cx,
7315 );
7316 });
7317
7318 let cursors = self.collect_cursors(&snapshot, cx);
7319 let visible_row_range = start_row..end_row;
7320 let non_visible_cursors = cursors
7321 .iter()
7322 .any(move |c| !visible_row_range.contains(&c.0.row()));
7323
7324 let visible_cursors = self.layout_visible_cursors(
7325 &snapshot,
7326 &selections,
7327 &block_start_rows,
7328 start_row..end_row,
7329 &line_layouts,
7330 &text_hitbox,
7331 content_origin,
7332 scroll_position,
7333 scroll_pixel_position,
7334 line_height,
7335 em_width,
7336 em_advance,
7337 autoscroll_containing_element,
7338 window,
7339 cx,
7340 );
7341
7342 let scrollbars_layout = self.layout_scrollbars(
7343 &snapshot,
7344 scrollbar_range_data,
7345 scroll_position,
7346 non_visible_cursors,
7347 window,
7348 cx,
7349 );
7350
7351 let gutter_settings = EditorSettings::get_global(cx).gutter;
7352
7353 let rows_with_hunk_bounds = display_hunks
7354 .iter()
7355 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7356 .fold(
7357 HashMap::default(),
7358 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7359 match hunk {
7360 DisplayDiffHunk::Folded { display_row } => {
7361 rows_with_hunk_bounds.insert(*display_row, bounds);
7362 }
7363 DisplayDiffHunk::Unfolded {
7364 display_row_range, ..
7365 } => {
7366 for display_row in display_row_range.iter_rows() {
7367 rows_with_hunk_bounds.insert(display_row, bounds);
7368 }
7369 }
7370 }
7371 rows_with_hunk_bounds
7372 },
7373 );
7374 let mut code_actions_indicator = None;
7375 if let Some(newest_selection_head) = newest_selection_head {
7376 let newest_selection_point =
7377 newest_selection_head.to_point(&snapshot.display_snapshot);
7378
7379 if (start_row..end_row).contains(&newest_selection_head.row()) {
7380 self.layout_cursor_popovers(
7381 line_height,
7382 &text_hitbox,
7383 content_origin,
7384 start_row,
7385 scroll_pixel_position,
7386 &line_layouts,
7387 newest_selection_head,
7388 newest_selection_point,
7389 &style,
7390 window,
7391 cx,
7392 );
7393
7394 let show_code_actions = snapshot
7395 .show_code_actions
7396 .unwrap_or(gutter_settings.code_actions);
7397 if show_code_actions {
7398 let newest_selection_point =
7399 newest_selection_head.to_point(&snapshot.display_snapshot);
7400 if !snapshot
7401 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7402 {
7403 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7404 MultiBufferRow(newest_selection_point.row),
7405 );
7406 if let Some((buffer, range)) = buffer {
7407 let buffer_id = buffer.remote_id();
7408 let row = range.start.row;
7409 let has_test_indicator = self
7410 .editor
7411 .read(cx)
7412 .tasks
7413 .contains_key(&(buffer_id, row));
7414
7415 if !has_test_indicator {
7416 code_actions_indicator = self
7417 .layout_code_actions_indicator(
7418 line_height,
7419 newest_selection_head,
7420 scroll_pixel_position,
7421 &gutter_dimensions,
7422 &gutter_hitbox,
7423 &rows_with_hunk_bounds,
7424 window,
7425 cx,
7426 );
7427 }
7428 }
7429 }
7430 }
7431 }
7432 }
7433
7434 self.layout_gutter_menu(
7435 line_height,
7436 &text_hitbox,
7437 content_origin,
7438 scroll_pixel_position,
7439 gutter_dimensions.width - gutter_dimensions.left_padding,
7440 window,
7441 cx,
7442 );
7443
7444 let test_indicators = if gutter_settings.runnables {
7445 self.layout_run_indicators(
7446 line_height,
7447 start_row..end_row,
7448 scroll_pixel_position,
7449 &gutter_dimensions,
7450 &gutter_hitbox,
7451 &rows_with_hunk_bounds,
7452 &snapshot,
7453 window,
7454 cx,
7455 )
7456 } else {
7457 Vec::new()
7458 };
7459
7460 self.layout_signature_help(
7461 &hitbox,
7462 content_origin,
7463 scroll_pixel_position,
7464 newest_selection_head,
7465 start_row,
7466 &line_layouts,
7467 line_height,
7468 em_width,
7469 window,
7470 cx,
7471 );
7472
7473 if !cx.has_active_drag() {
7474 self.layout_hover_popovers(
7475 &snapshot,
7476 &hitbox,
7477 &text_hitbox,
7478 start_row..end_row,
7479 content_origin,
7480 scroll_pixel_position,
7481 &line_layouts,
7482 line_height,
7483 em_width,
7484 window,
7485 cx,
7486 );
7487 }
7488
7489 let inline_completion_popover = self.layout_inline_completion_popover(
7490 &text_hitbox.bounds,
7491 &snapshot,
7492 start_row..end_row,
7493 scroll_position.y,
7494 scroll_position.y + height_in_lines,
7495 &line_layouts,
7496 line_height,
7497 scroll_pixel_position,
7498 newest_selection_head,
7499 editor_width,
7500 &style,
7501 window,
7502 cx,
7503 );
7504
7505 let mouse_context_menu = self.layout_mouse_context_menu(
7506 &snapshot,
7507 start_row..end_row,
7508 content_origin,
7509 window,
7510 cx,
7511 );
7512
7513 window.with_element_namespace("crease_toggles", |window| {
7514 self.prepaint_crease_toggles(
7515 &mut crease_toggles,
7516 line_height,
7517 &gutter_dimensions,
7518 gutter_settings,
7519 scroll_pixel_position,
7520 &gutter_hitbox,
7521 window,
7522 cx,
7523 )
7524 });
7525
7526 let invisible_symbol_font_size = font_size / 2.;
7527 let tab_invisible = window
7528 .text_system()
7529 .shape_line(
7530 "→".into(),
7531 invisible_symbol_font_size,
7532 &[TextRun {
7533 len: "→".len(),
7534 font: self.style.text.font(),
7535 color: cx.theme().colors().editor_invisible,
7536 background_color: None,
7537 underline: None,
7538 strikethrough: None,
7539 }],
7540 )
7541 .unwrap();
7542 let space_invisible = window
7543 .text_system()
7544 .shape_line(
7545 "•".into(),
7546 invisible_symbol_font_size,
7547 &[TextRun {
7548 len: "•".len(),
7549 font: self.style.text.font(),
7550 color: cx.theme().colors().editor_invisible,
7551 background_color: None,
7552 underline: None,
7553 strikethrough: None,
7554 }],
7555 )
7556 .unwrap();
7557
7558 let mode = snapshot.mode;
7559
7560 let position_map = Rc::new(PositionMap {
7561 size: bounds.size,
7562 scroll_pixel_position,
7563 scroll_max,
7564 line_layouts,
7565 line_height,
7566 em_width,
7567 em_advance,
7568 snapshot,
7569 });
7570
7571 let hunk_controls = self.layout_diff_hunk_controls(
7572 start_row..end_row,
7573 &row_infos,
7574 &text_hitbox,
7575 &position_map,
7576 newest_selection_head,
7577 line_height,
7578 scroll_pixel_position,
7579 &display_hunks,
7580 self.editor.clone(),
7581 window,
7582 cx,
7583 );
7584
7585 EditorLayout {
7586 mode,
7587 position_map,
7588 visible_display_row_range: start_row..end_row,
7589 wrap_guides,
7590 indent_guides,
7591 hitbox,
7592 text_hitbox,
7593 gutter_hitbox,
7594 display_hunks,
7595 content_origin,
7596 scrollbars_layout,
7597 active_rows,
7598 highlighted_rows,
7599 highlighted_ranges,
7600 highlighted_gutter_ranges,
7601 redacted_ranges,
7602 line_elements,
7603 line_numbers,
7604 blamed_display_rows,
7605 inline_blame,
7606 blocks,
7607 cursors,
7608 visible_cursors,
7609 selections,
7610 inline_completion_popover,
7611 diff_hunk_controls: hunk_controls,
7612 mouse_context_menu,
7613 test_indicators,
7614 code_actions_indicator,
7615 crease_toggles,
7616 crease_trailers,
7617 tab_invisible,
7618 space_invisible,
7619 sticky_buffer_header,
7620 }
7621 })
7622 })
7623 })
7624 }
7625
7626 fn paint(
7627 &mut self,
7628 _: Option<&GlobalElementId>,
7629 bounds: Bounds<gpui::Pixels>,
7630 _: &mut Self::RequestLayoutState,
7631 layout: &mut Self::PrepaintState,
7632 window: &mut Window,
7633 cx: &mut App,
7634 ) {
7635 let focus_handle = self.editor.focus_handle(cx);
7636 let key_context = self
7637 .editor
7638 .update(cx, |editor, cx| editor.key_context(window, cx));
7639
7640 window.set_key_context(key_context);
7641 window.handle_input(
7642 &focus_handle,
7643 ElementInputHandler::new(bounds, self.editor.clone()),
7644 cx,
7645 );
7646 self.register_actions(window, cx);
7647 self.register_key_listeners(window, cx, layout);
7648
7649 let text_style = TextStyleRefinement {
7650 font_size: Some(self.style.text.font_size),
7651 line_height: Some(self.style.text.line_height),
7652 ..Default::default()
7653 };
7654 let rem_size = self.rem_size(cx);
7655 window.with_rem_size(rem_size, |window| {
7656 window.with_text_style(Some(text_style), |window| {
7657 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7658 self.paint_mouse_listeners(layout, window, cx);
7659 self.paint_background(layout, window, cx);
7660 self.paint_indent_guides(layout, window, cx);
7661
7662 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7663 self.paint_blamed_display_rows(layout, window, cx);
7664 self.paint_line_numbers(layout, window, cx);
7665 }
7666
7667 self.paint_text(layout, window, cx);
7668
7669 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7670 self.paint_gutter_highlights(layout, window, cx);
7671 self.paint_gutter_indicators(layout, window, cx);
7672 }
7673
7674 if !layout.blocks.is_empty() {
7675 window.with_element_namespace("blocks", |window| {
7676 self.paint_blocks(layout, window, cx);
7677 });
7678 }
7679
7680 window.with_element_namespace("blocks", |window| {
7681 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7682 sticky_header.paint(window, cx)
7683 }
7684 });
7685
7686 self.paint_scrollbars(layout, window, cx);
7687 self.paint_inline_completion_popover(layout, window, cx);
7688 self.paint_mouse_context_menu(layout, window, cx);
7689 });
7690 })
7691 })
7692 }
7693}
7694
7695pub(super) fn gutter_bounds(
7696 editor_bounds: Bounds<Pixels>,
7697 gutter_dimensions: GutterDimensions,
7698) -> Bounds<Pixels> {
7699 Bounds {
7700 origin: editor_bounds.origin,
7701 size: size(gutter_dimensions.width, editor_bounds.size.height),
7702 }
7703}
7704
7705struct ScrollbarRangeData {
7706 scrollbar_bounds: Bounds<Pixels>,
7707 scroll_range: Bounds<Pixels>,
7708 letter_size: Size<Pixels>,
7709}
7710
7711impl ScrollbarRangeData {
7712 pub fn new(
7713 scrollbar_bounds: Bounds<Pixels>,
7714 letter_size: Size<Pixels>,
7715 snapshot: &EditorSnapshot,
7716 longest_line_width: Pixels,
7717 longest_line_blame_width: Pixels,
7718 style: &EditorStyle,
7719
7720 cx: &mut App,
7721 ) -> ScrollbarRangeData {
7722 // TODO: Simplify this function down, it requires a lot of parameters
7723 let max_row = snapshot.max_point().row();
7724 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7725
7726 let scrollbar_width = style.scrollbar_width;
7727
7728 let settings = EditorSettings::get_global(cx);
7729 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7730 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7731 ScrollBeyondLastLine::Off => px(1.),
7732 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7733 };
7734
7735 let overscroll = size(
7736 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7737 letter_size.height * scroll_beyond_last_line,
7738 );
7739
7740 let scroll_range = Bounds {
7741 origin: scrollbar_bounds.origin,
7742 size: text_bounds_size + overscroll,
7743 };
7744
7745 ScrollbarRangeData {
7746 scrollbar_bounds,
7747 scroll_range,
7748 letter_size,
7749 }
7750 }
7751}
7752
7753impl IntoElement for EditorElement {
7754 type Element = Self;
7755
7756 fn into_element(self) -> Self::Element {
7757 self
7758 }
7759}
7760
7761pub struct EditorLayout {
7762 position_map: Rc<PositionMap>,
7763 hitbox: Hitbox,
7764 text_hitbox: Hitbox,
7765 gutter_hitbox: Hitbox,
7766 content_origin: gpui::Point<Pixels>,
7767 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7768 mode: EditorMode,
7769 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7770 indent_guides: Option<Vec<IndentGuideLayout>>,
7771 visible_display_row_range: Range<DisplayRow>,
7772 active_rows: BTreeMap<DisplayRow, bool>,
7773 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7774 line_elements: SmallVec<[AnyElement; 1]>,
7775 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7776 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7777 blamed_display_rows: Option<Vec<AnyElement>>,
7778 inline_blame: Option<AnyElement>,
7779 blocks: Vec<BlockLayout>,
7780 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7781 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7782 redacted_ranges: Vec<Range<DisplayPoint>>,
7783 cursors: Vec<(DisplayPoint, Hsla)>,
7784 visible_cursors: Vec<CursorLayout>,
7785 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7786 code_actions_indicator: Option<AnyElement>,
7787 test_indicators: Vec<AnyElement>,
7788 crease_toggles: Vec<Option<AnyElement>>,
7789 diff_hunk_controls: Vec<AnyElement>,
7790 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7791 inline_completion_popover: Option<AnyElement>,
7792 mouse_context_menu: Option<AnyElement>,
7793 tab_invisible: ShapedLine,
7794 space_invisible: ShapedLine,
7795 sticky_buffer_header: Option<AnyElement>,
7796}
7797
7798impl EditorLayout {
7799 fn line_end_overshoot(&self) -> Pixels {
7800 0.15 * self.position_map.line_height
7801 }
7802}
7803
7804struct LineNumberLayout {
7805 shaped_line: ShapedLine,
7806 hitbox: Option<Hitbox>,
7807 display_row: DisplayRow,
7808}
7809
7810struct ColoredRange<T> {
7811 start: T,
7812 end: T,
7813 color: Hsla,
7814}
7815
7816#[derive(Clone)]
7817struct ScrollbarLayout {
7818 hitbox: Hitbox,
7819 visible_range: Range<f32>,
7820 visible: bool,
7821 text_unit_size: Pixels,
7822 thumb_size: Pixels,
7823 axis: Axis,
7824}
7825
7826impl ScrollbarLayout {
7827 const BORDER_WIDTH: Pixels = px(1.0);
7828 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7829 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7830 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7831
7832 fn thumb_bounds(&self) -> Bounds<Pixels> {
7833 match self.axis {
7834 Axis::Vertical => {
7835 let thumb_top = self.y_for_row(self.visible_range.start);
7836 let thumb_bottom = thumb_top + self.thumb_size;
7837 Bounds::from_corners(
7838 point(self.hitbox.left(), thumb_top),
7839 point(self.hitbox.right(), thumb_bottom),
7840 )
7841 }
7842 Axis::Horizontal => {
7843 let thumb_left =
7844 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7845 let thumb_right = thumb_left + self.thumb_size;
7846 Bounds::from_corners(
7847 point(thumb_left, self.hitbox.top()),
7848 point(thumb_right, self.hitbox.bottom()),
7849 )
7850 }
7851 }
7852 }
7853
7854 fn y_for_row(&self, row: f32) -> Pixels {
7855 self.hitbox.top() + row * self.text_unit_size
7856 }
7857
7858 fn marker_quads_for_ranges(
7859 &self,
7860 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7861 column: Option<usize>,
7862 ) -> Vec<PaintQuad> {
7863 struct MinMax {
7864 min: Pixels,
7865 max: Pixels,
7866 }
7867 let (x_range, height_limit) = if let Some(column) = column {
7868 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7869 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7870 let end = start + column_width;
7871 (
7872 Range { start, end },
7873 MinMax {
7874 min: Self::MIN_MARKER_HEIGHT,
7875 max: px(f32::MAX),
7876 },
7877 )
7878 } else {
7879 (
7880 Range {
7881 start: Self::BORDER_WIDTH,
7882 end: self.hitbox.size.width,
7883 },
7884 MinMax {
7885 min: Self::LINE_MARKER_HEIGHT,
7886 max: Self::LINE_MARKER_HEIGHT,
7887 },
7888 )
7889 };
7890
7891 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7892 let mut pixel_ranges = row_ranges
7893 .into_iter()
7894 .map(|range| {
7895 let start_y = row_to_y(range.start);
7896 let end_y = row_to_y(range.end)
7897 + self
7898 .text_unit_size
7899 .max(height_limit.min)
7900 .min(height_limit.max);
7901 ColoredRange {
7902 start: start_y,
7903 end: end_y,
7904 color: range.color,
7905 }
7906 })
7907 .peekable();
7908
7909 let mut quads = Vec::new();
7910 while let Some(mut pixel_range) = pixel_ranges.next() {
7911 while let Some(next_pixel_range) = pixel_ranges.peek() {
7912 if pixel_range.end >= next_pixel_range.start - px(1.0)
7913 && pixel_range.color == next_pixel_range.color
7914 {
7915 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7916 pixel_ranges.next();
7917 } else {
7918 break;
7919 }
7920 }
7921
7922 let bounds = Bounds::from_corners(
7923 point(x_range.start, pixel_range.start),
7924 point(x_range.end, pixel_range.end),
7925 );
7926 quads.push(quad(
7927 bounds,
7928 Corners::default(),
7929 pixel_range.color,
7930 Edges::default(),
7931 Hsla::transparent_black(),
7932 ));
7933 }
7934
7935 quads
7936 }
7937}
7938
7939struct CreaseTrailerLayout {
7940 element: AnyElement,
7941 bounds: Bounds<Pixels>,
7942}
7943
7944struct PositionMap {
7945 size: Size<Pixels>,
7946 line_height: Pixels,
7947 scroll_pixel_position: gpui::Point<Pixels>,
7948 scroll_max: gpui::Point<f32>,
7949 em_width: Pixels,
7950 em_advance: Pixels,
7951 line_layouts: Vec<LineWithInvisibles>,
7952 snapshot: EditorSnapshot,
7953}
7954
7955#[derive(Debug, Copy, Clone)]
7956pub struct PointForPosition {
7957 pub previous_valid: DisplayPoint,
7958 pub next_valid: DisplayPoint,
7959 pub exact_unclipped: DisplayPoint,
7960 pub column_overshoot_after_line_end: u32,
7961}
7962
7963impl PointForPosition {
7964 pub fn as_valid(&self) -> Option<DisplayPoint> {
7965 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7966 Some(self.previous_valid)
7967 } else {
7968 None
7969 }
7970 }
7971}
7972
7973impl PositionMap {
7974 fn point_for_position(
7975 &self,
7976 text_bounds: Bounds<Pixels>,
7977 position: gpui::Point<Pixels>,
7978 ) -> PointForPosition {
7979 let scroll_position = self.snapshot.scroll_position();
7980 let position = position - text_bounds.origin;
7981 let y = position.y.max(px(0.)).min(self.size.height);
7982 let x = position.x + (scroll_position.x * self.em_width);
7983 let row = ((y / self.line_height) + scroll_position.y) as u32;
7984
7985 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7986 .line_layouts
7987 .get(row as usize - scroll_position.y as usize)
7988 {
7989 if let Some(ix) = line.index_for_x(x) {
7990 (ix as u32, px(0.))
7991 } else {
7992 (line.len as u32, px(0.).max(x - line.width))
7993 }
7994 } else {
7995 (0, x)
7996 };
7997
7998 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7999 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8000 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8001
8002 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8003 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8004 PointForPosition {
8005 previous_valid,
8006 next_valid,
8007 exact_unclipped,
8008 column_overshoot_after_line_end,
8009 }
8010 }
8011}
8012
8013struct BlockLayout {
8014 id: BlockId,
8015 row: Option<DisplayRow>,
8016 element: AnyElement,
8017 available_space: Size<AvailableSpace>,
8018 style: BlockStyle,
8019}
8020
8021fn layout_line(
8022 row: DisplayRow,
8023 snapshot: &EditorSnapshot,
8024 style: &EditorStyle,
8025 text_width: Pixels,
8026 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8027 window: &mut Window,
8028 cx: &mut App,
8029) -> LineWithInvisibles {
8030 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8031 LineWithInvisibles::from_chunks(
8032 chunks,
8033 &style,
8034 MAX_LINE_LEN,
8035 1,
8036 snapshot.mode,
8037 text_width,
8038 is_row_soft_wrapped,
8039 window,
8040 cx,
8041 )
8042 .pop()
8043 .unwrap()
8044}
8045
8046#[derive(Debug)]
8047pub struct IndentGuideLayout {
8048 origin: gpui::Point<Pixels>,
8049 length: Pixels,
8050 single_indent_width: Pixels,
8051 depth: u32,
8052 active: bool,
8053 settings: IndentGuideSettings,
8054}
8055
8056pub struct CursorLayout {
8057 origin: gpui::Point<Pixels>,
8058 block_width: Pixels,
8059 line_height: Pixels,
8060 color: Hsla,
8061 shape: CursorShape,
8062 block_text: Option<ShapedLine>,
8063 cursor_name: Option<AnyElement>,
8064}
8065
8066#[derive(Debug)]
8067pub struct CursorName {
8068 string: SharedString,
8069 color: Hsla,
8070 is_top_row: bool,
8071}
8072
8073impl CursorLayout {
8074 pub fn new(
8075 origin: gpui::Point<Pixels>,
8076 block_width: Pixels,
8077 line_height: Pixels,
8078 color: Hsla,
8079 shape: CursorShape,
8080 block_text: Option<ShapedLine>,
8081 ) -> CursorLayout {
8082 CursorLayout {
8083 origin,
8084 block_width,
8085 line_height,
8086 color,
8087 shape,
8088 block_text,
8089 cursor_name: None,
8090 }
8091 }
8092
8093 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8094 Bounds {
8095 origin: self.origin + origin,
8096 size: size(self.block_width, self.line_height),
8097 }
8098 }
8099
8100 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8101 match self.shape {
8102 CursorShape::Bar => Bounds {
8103 origin: self.origin + origin,
8104 size: size(px(2.0), self.line_height),
8105 },
8106 CursorShape::Block | CursorShape::Hollow => Bounds {
8107 origin: self.origin + origin,
8108 size: size(self.block_width, self.line_height),
8109 },
8110 CursorShape::Underline => Bounds {
8111 origin: self.origin
8112 + origin
8113 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8114 size: size(self.block_width, px(2.0)),
8115 },
8116 }
8117 }
8118
8119 pub fn layout(
8120 &mut self,
8121 origin: gpui::Point<Pixels>,
8122 cursor_name: Option<CursorName>,
8123 window: &mut Window,
8124 cx: &mut App,
8125 ) {
8126 if let Some(cursor_name) = cursor_name {
8127 let bounds = self.bounds(origin);
8128 let text_size = self.line_height / 1.5;
8129
8130 let name_origin = if cursor_name.is_top_row {
8131 point(bounds.right() - px(1.), bounds.top())
8132 } else {
8133 match self.shape {
8134 CursorShape::Bar => point(
8135 bounds.right() - px(2.),
8136 bounds.top() - text_size / 2. - px(1.),
8137 ),
8138 _ => point(
8139 bounds.right() - px(1.),
8140 bounds.top() - text_size / 2. - px(1.),
8141 ),
8142 }
8143 };
8144 let mut name_element = div()
8145 .bg(self.color)
8146 .text_size(text_size)
8147 .px_0p5()
8148 .line_height(text_size + px(2.))
8149 .text_color(cursor_name.color)
8150 .child(cursor_name.string.clone())
8151 .into_any_element();
8152
8153 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8154
8155 self.cursor_name = Some(name_element);
8156 }
8157 }
8158
8159 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8160 let bounds = self.bounds(origin);
8161
8162 //Draw background or border quad
8163 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8164 outline(bounds, self.color)
8165 } else {
8166 fill(bounds, self.color)
8167 };
8168
8169 if let Some(name) = &mut self.cursor_name {
8170 name.paint(window, cx);
8171 }
8172
8173 window.paint_quad(cursor);
8174
8175 if let Some(block_text) = &self.block_text {
8176 block_text
8177 .paint(self.origin + origin, self.line_height, window, cx)
8178 .log_err();
8179 }
8180 }
8181
8182 pub fn shape(&self) -> CursorShape {
8183 self.shape
8184 }
8185}
8186
8187#[derive(Debug)]
8188pub struct HighlightedRange {
8189 pub start_y: Pixels,
8190 pub line_height: Pixels,
8191 pub lines: Vec<HighlightedRangeLine>,
8192 pub color: Hsla,
8193 pub corner_radius: Pixels,
8194}
8195
8196#[derive(Debug)]
8197pub struct HighlightedRangeLine {
8198 pub start_x: Pixels,
8199 pub end_x: Pixels,
8200}
8201
8202impl HighlightedRange {
8203 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8204 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8205 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8206 self.paint_lines(
8207 self.start_y + self.line_height,
8208 &self.lines[1..],
8209 bounds,
8210 window,
8211 );
8212 } else {
8213 self.paint_lines(self.start_y, &self.lines, bounds, window);
8214 }
8215 }
8216
8217 fn paint_lines(
8218 &self,
8219 start_y: Pixels,
8220 lines: &[HighlightedRangeLine],
8221 _bounds: Bounds<Pixels>,
8222 window: &mut Window,
8223 ) {
8224 if lines.is_empty() {
8225 return;
8226 }
8227
8228 let first_line = lines.first().unwrap();
8229 let last_line = lines.last().unwrap();
8230
8231 let first_top_left = point(first_line.start_x, start_y);
8232 let first_top_right = point(first_line.end_x, start_y);
8233
8234 let curve_height = point(Pixels::ZERO, self.corner_radius);
8235 let curve_width = |start_x: Pixels, end_x: Pixels| {
8236 let max = (end_x - start_x) / 2.;
8237 let width = if max < self.corner_radius {
8238 max
8239 } else {
8240 self.corner_radius
8241 };
8242
8243 point(width, Pixels::ZERO)
8244 };
8245
8246 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8247 let mut builder = gpui::PathBuilder::fill();
8248 builder.curve_to(first_top_right + curve_height, first_top_right);
8249
8250 let mut iter = lines.iter().enumerate().peekable();
8251 while let Some((ix, line)) = iter.next() {
8252 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8253
8254 if let Some((_, next_line)) = iter.peek() {
8255 let next_top_right = point(next_line.end_x, bottom_right.y);
8256
8257 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8258 Ordering::Equal => {
8259 builder.line_to(bottom_right);
8260 }
8261 Ordering::Less => {
8262 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8263 builder.line_to(bottom_right - curve_height);
8264 if self.corner_radius > Pixels::ZERO {
8265 builder.curve_to(bottom_right - curve_width, bottom_right);
8266 }
8267 builder.line_to(next_top_right + curve_width);
8268 if self.corner_radius > Pixels::ZERO {
8269 builder.curve_to(next_top_right + curve_height, next_top_right);
8270 }
8271 }
8272 Ordering::Greater => {
8273 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8274 builder.line_to(bottom_right - curve_height);
8275 if self.corner_radius > Pixels::ZERO {
8276 builder.curve_to(bottom_right + curve_width, bottom_right);
8277 }
8278 builder.line_to(next_top_right - curve_width);
8279 if self.corner_radius > Pixels::ZERO {
8280 builder.curve_to(next_top_right + curve_height, next_top_right);
8281 }
8282 }
8283 }
8284 } else {
8285 let curve_width = curve_width(line.start_x, line.end_x);
8286 builder.line_to(bottom_right - curve_height);
8287 if self.corner_radius > Pixels::ZERO {
8288 builder.curve_to(bottom_right - curve_width, bottom_right);
8289 }
8290
8291 let bottom_left = point(line.start_x, bottom_right.y);
8292 builder.line_to(bottom_left + curve_width);
8293 if self.corner_radius > Pixels::ZERO {
8294 builder.curve_to(bottom_left - curve_height, bottom_left);
8295 }
8296 }
8297 }
8298
8299 if first_line.start_x > last_line.start_x {
8300 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8301 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8302 builder.line_to(second_top_left + curve_height);
8303 if self.corner_radius > Pixels::ZERO {
8304 builder.curve_to(second_top_left + curve_width, second_top_left);
8305 }
8306 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8307 builder.line_to(first_bottom_left - curve_width);
8308 if self.corner_radius > Pixels::ZERO {
8309 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8310 }
8311 }
8312
8313 builder.line_to(first_top_left + curve_height);
8314 if self.corner_radius > Pixels::ZERO {
8315 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8316 }
8317 builder.line_to(first_top_right - top_curve_width);
8318
8319 if let Ok(path) = builder.build() {
8320 window.paint_path(path, self.color);
8321 }
8322 }
8323}
8324
8325enum CursorPopoverType {
8326 CodeContextMenu,
8327 EditPrediction,
8328}
8329
8330pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8331 (delta.pow(1.5) / 100.0).into()
8332}
8333
8334fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8335 (delta.pow(1.2) / 300.0).into()
8336}
8337
8338pub fn register_action<T: Action>(
8339 editor: &Entity<Editor>,
8340 window: &mut Window,
8341 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8342) {
8343 let editor = editor.clone();
8344 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8345 let action = action.downcast_ref().unwrap();
8346 if phase == DispatchPhase::Bubble {
8347 editor.update(cx, |editor, cx| {
8348 listener(editor, action, window, cx);
8349 })
8350 }
8351 })
8352}
8353
8354fn compute_auto_height_layout(
8355 editor: &mut Editor,
8356 max_lines: usize,
8357 max_line_number_width: Pixels,
8358 known_dimensions: Size<Option<Pixels>>,
8359 available_width: AvailableSpace,
8360 window: &mut Window,
8361 cx: &mut Context<Editor>,
8362) -> Option<Size<Pixels>> {
8363 let width = known_dimensions.width.or({
8364 if let AvailableSpace::Definite(available_width) = available_width {
8365 Some(available_width)
8366 } else {
8367 None
8368 }
8369 })?;
8370 if let Some(height) = known_dimensions.height {
8371 return Some(size(width, height));
8372 }
8373
8374 let style = editor.style.as_ref().unwrap();
8375 let font_id = window.text_system().resolve_font(&style.text.font());
8376 let font_size = style.text.font_size.to_pixels(window.rem_size());
8377 let line_height = style.text.line_height_in_pixels(window.rem_size());
8378 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8379
8380 let mut snapshot = editor.snapshot(window, cx);
8381 let gutter_dimensions = snapshot
8382 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8383 .unwrap_or_default();
8384
8385 editor.gutter_dimensions = gutter_dimensions;
8386 let text_width = width - gutter_dimensions.width;
8387 let overscroll = size(em_width, px(0.));
8388
8389 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8390 if editor.set_wrap_width(Some(editor_width), cx) {
8391 snapshot = editor.snapshot(window, cx);
8392 }
8393
8394 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8395 let height = scroll_height
8396 .max(line_height)
8397 .min(line_height * max_lines as f32);
8398
8399 Some(size(width, height))
8400}
8401
8402#[cfg(test)]
8403mod tests {
8404 use super::*;
8405 use crate::{
8406 display_map::{BlockPlacement, BlockProperties},
8407 editor_tests::{init_test, update_test_language_settings},
8408 Editor, MultiBuffer,
8409 };
8410 use gpui::{TestAppContext, VisualTestContext};
8411 use language::language_settings;
8412 use log::info;
8413 use similar::DiffableStr;
8414 use std::num::NonZeroU32;
8415 use util::test::sample_text;
8416
8417 #[gpui::test]
8418 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8419 init_test(cx, |_| {});
8420 let window = cx.add_window(|window, cx| {
8421 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8422 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8423 });
8424
8425 let editor = window.root(cx).unwrap();
8426 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8427 let line_height = window
8428 .update(cx, |_, window, _| {
8429 style.text.line_height_in_pixels(window.rem_size())
8430 })
8431 .unwrap();
8432 let element = EditorElement::new(&editor, style);
8433 let snapshot = window
8434 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8435 .unwrap();
8436
8437 let layouts = cx
8438 .update_window(*window, |_, window, cx| {
8439 element.layout_line_numbers(
8440 None,
8441 GutterDimensions {
8442 left_padding: Pixels::ZERO,
8443 right_padding: Pixels::ZERO,
8444 width: px(30.0),
8445 margin: Pixels::ZERO,
8446 git_blame_entries_width: None,
8447 },
8448 line_height,
8449 gpui::Point::default(),
8450 DisplayRow(0)..DisplayRow(6),
8451 &(0..6)
8452 .map(|row| RowInfo {
8453 buffer_row: Some(row),
8454 ..Default::default()
8455 })
8456 .collect::<Vec<_>>(),
8457 Some(DisplayPoint::new(DisplayRow(0), 0)),
8458 &snapshot,
8459 window,
8460 cx,
8461 )
8462 })
8463 .unwrap();
8464 assert_eq!(layouts.len(), 6);
8465
8466 let relative_rows = window
8467 .update(cx, |editor, window, cx| {
8468 let snapshot = editor.snapshot(window, cx);
8469 element.calculate_relative_line_numbers(
8470 &snapshot,
8471 &(DisplayRow(0)..DisplayRow(6)),
8472 Some(DisplayRow(3)),
8473 )
8474 })
8475 .unwrap();
8476 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8477 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8478 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8479 // current line has no relative number
8480 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8481 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8482
8483 // works if cursor is before screen
8484 let relative_rows = window
8485 .update(cx, |editor, window, cx| {
8486 let snapshot = editor.snapshot(window, cx);
8487 element.calculate_relative_line_numbers(
8488 &snapshot,
8489 &(DisplayRow(3)..DisplayRow(6)),
8490 Some(DisplayRow(1)),
8491 )
8492 })
8493 .unwrap();
8494 assert_eq!(relative_rows.len(), 3);
8495 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8496 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8497 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8498
8499 // works if cursor is after screen
8500 let relative_rows = window
8501 .update(cx, |editor, window, cx| {
8502 let snapshot = editor.snapshot(window, cx);
8503 element.calculate_relative_line_numbers(
8504 &snapshot,
8505 &(DisplayRow(0)..DisplayRow(3)),
8506 Some(DisplayRow(6)),
8507 )
8508 })
8509 .unwrap();
8510 assert_eq!(relative_rows.len(), 3);
8511 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8512 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8513 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8514 }
8515
8516 #[gpui::test]
8517 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8518 init_test(cx, |_| {});
8519
8520 let window = cx.add_window(|window, cx| {
8521 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8522 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8523 });
8524 let cx = &mut VisualTestContext::from_window(*window, cx);
8525 let editor = window.root(cx).unwrap();
8526 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8527
8528 window
8529 .update(cx, |editor, window, cx| {
8530 editor.cursor_shape = CursorShape::Block;
8531 editor.change_selections(None, window, cx, |s| {
8532 s.select_ranges([
8533 Point::new(0, 0)..Point::new(1, 0),
8534 Point::new(3, 2)..Point::new(3, 3),
8535 Point::new(5, 6)..Point::new(6, 0),
8536 ]);
8537 });
8538 })
8539 .unwrap();
8540
8541 let (_, state) = cx.draw(
8542 point(px(500.), px(500.)),
8543 size(px(500.), px(500.)),
8544 |_, _| EditorElement::new(&editor, style),
8545 );
8546
8547 assert_eq!(state.selections.len(), 1);
8548 let local_selections = &state.selections[0].1;
8549 assert_eq!(local_selections.len(), 3);
8550 // moves cursor back one line
8551 assert_eq!(
8552 local_selections[0].head,
8553 DisplayPoint::new(DisplayRow(0), 6)
8554 );
8555 assert_eq!(
8556 local_selections[0].range,
8557 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8558 );
8559
8560 // moves cursor back one column
8561 assert_eq!(
8562 local_selections[1].range,
8563 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8564 );
8565 assert_eq!(
8566 local_selections[1].head,
8567 DisplayPoint::new(DisplayRow(3), 2)
8568 );
8569
8570 // leaves cursor on the max point
8571 assert_eq!(
8572 local_selections[2].range,
8573 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8574 );
8575 assert_eq!(
8576 local_selections[2].head,
8577 DisplayPoint::new(DisplayRow(6), 0)
8578 );
8579
8580 // active lines does not include 1 (even though the range of the selection does)
8581 assert_eq!(
8582 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8583 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8584 );
8585
8586 // multi-buffer support
8587 // in DisplayPoint coordinates, this is what we're dealing with:
8588 // 0: [[file
8589 // 1: header
8590 // 2: section]]
8591 // 3: aaaaaa
8592 // 4: bbbbbb
8593 // 5: cccccc
8594 // 6:
8595 // 7: [[footer]]
8596 // 8: [[header]]
8597 // 9: ffffff
8598 // 10: gggggg
8599 // 11: hhhhhh
8600 // 12:
8601 // 13: [[footer]]
8602 // 14: [[file
8603 // 15: header
8604 // 16: section]]
8605 // 17: bbbbbb
8606 // 18: cccccc
8607 // 19: dddddd
8608 // 20: [[footer]]
8609 let window = cx.add_window(|window, cx| {
8610 let buffer = MultiBuffer::build_multi(
8611 [
8612 (
8613 &(sample_text(8, 6, 'a') + "\n"),
8614 vec![
8615 Point::new(0, 0)..Point::new(3, 0),
8616 Point::new(4, 0)..Point::new(7, 0),
8617 ],
8618 ),
8619 (
8620 &(sample_text(8, 6, 'a') + "\n"),
8621 vec![Point::new(1, 0)..Point::new(3, 0)],
8622 ),
8623 ],
8624 cx,
8625 );
8626 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8627 });
8628 let editor = window.root(cx).unwrap();
8629 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8630 let _state = window.update(cx, |editor, window, cx| {
8631 editor.cursor_shape = CursorShape::Block;
8632 editor.change_selections(None, window, cx, |s| {
8633 s.select_display_ranges([
8634 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8635 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8636 ]);
8637 });
8638 });
8639
8640 let (_, state) = cx.draw(
8641 point(px(500.), px(500.)),
8642 size(px(500.), px(500.)),
8643 |_, _| EditorElement::new(&editor, style),
8644 );
8645 assert_eq!(state.selections.len(), 1);
8646 let local_selections = &state.selections[0].1;
8647 assert_eq!(local_selections.len(), 2);
8648
8649 // moves cursor on excerpt boundary back a line
8650 // and doesn't allow selection to bleed through
8651 assert_eq!(
8652 local_selections[0].range,
8653 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8654 );
8655 assert_eq!(
8656 local_selections[0].head,
8657 DisplayPoint::new(DisplayRow(6), 0)
8658 );
8659 // moves cursor on buffer boundary back two lines
8660 // and doesn't allow selection to bleed through
8661 assert_eq!(
8662 local_selections[1].range,
8663 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8664 );
8665 assert_eq!(
8666 local_selections[1].head,
8667 DisplayPoint::new(DisplayRow(12), 0)
8668 );
8669 }
8670
8671 #[gpui::test]
8672 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8673 init_test(cx, |_| {});
8674
8675 let window = cx.add_window(|window, cx| {
8676 let buffer = MultiBuffer::build_simple("", cx);
8677 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8678 });
8679 let cx = &mut VisualTestContext::from_window(*window, cx);
8680 let editor = window.root(cx).unwrap();
8681 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8682 window
8683 .update(cx, |editor, window, cx| {
8684 editor.set_placeholder_text("hello", cx);
8685 editor.insert_blocks(
8686 [BlockProperties {
8687 style: BlockStyle::Fixed,
8688 placement: BlockPlacement::Above(Anchor::min()),
8689 height: 3,
8690 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8691 priority: 0,
8692 }],
8693 None,
8694 cx,
8695 );
8696
8697 // Blur the editor so that it displays placeholder text.
8698 window.blur();
8699 })
8700 .unwrap();
8701
8702 let (_, state) = cx.draw(
8703 point(px(500.), px(500.)),
8704 size(px(500.), px(500.)),
8705 |_, _| EditorElement::new(&editor, style),
8706 );
8707 assert_eq!(state.position_map.line_layouts.len(), 4);
8708 assert_eq!(state.line_numbers.len(), 1);
8709 assert_eq!(
8710 state
8711 .line_numbers
8712 .get(&MultiBufferRow(0))
8713 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8714 Some("1")
8715 );
8716 }
8717
8718 #[gpui::test]
8719 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8720 const TAB_SIZE: u32 = 4;
8721
8722 let input_text = "\t \t|\t| a b";
8723 let expected_invisibles = vec![
8724 Invisible::Tab {
8725 line_start_offset: 0,
8726 line_end_offset: TAB_SIZE as usize,
8727 },
8728 Invisible::Whitespace {
8729 line_offset: TAB_SIZE as usize,
8730 },
8731 Invisible::Tab {
8732 line_start_offset: TAB_SIZE as usize + 1,
8733 line_end_offset: TAB_SIZE as usize * 2,
8734 },
8735 Invisible::Tab {
8736 line_start_offset: TAB_SIZE as usize * 2 + 1,
8737 line_end_offset: TAB_SIZE as usize * 3,
8738 },
8739 Invisible::Whitespace {
8740 line_offset: TAB_SIZE as usize * 3 + 1,
8741 },
8742 Invisible::Whitespace {
8743 line_offset: TAB_SIZE as usize * 3 + 3,
8744 },
8745 ];
8746 assert_eq!(
8747 expected_invisibles.len(),
8748 input_text
8749 .chars()
8750 .filter(|initial_char| initial_char.is_whitespace())
8751 .count(),
8752 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8753 );
8754
8755 for show_line_numbers in [true, false] {
8756 init_test(cx, |s| {
8757 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8758 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8759 });
8760
8761 let actual_invisibles = collect_invisibles_from_new_editor(
8762 cx,
8763 EditorMode::Full,
8764 input_text,
8765 px(500.0),
8766 show_line_numbers,
8767 );
8768
8769 assert_eq!(expected_invisibles, actual_invisibles);
8770 }
8771 }
8772
8773 #[gpui::test]
8774 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8775 init_test(cx, |s| {
8776 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8777 s.defaults.tab_size = NonZeroU32::new(4);
8778 });
8779
8780 for editor_mode_without_invisibles in [
8781 EditorMode::SingleLine { auto_width: false },
8782 EditorMode::AutoHeight { max_lines: 100 },
8783 ] {
8784 for show_line_numbers in [true, false] {
8785 let invisibles = collect_invisibles_from_new_editor(
8786 cx,
8787 editor_mode_without_invisibles,
8788 "\t\t\t| | a b",
8789 px(500.0),
8790 show_line_numbers,
8791 );
8792 assert!(invisibles.is_empty(),
8793 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8794 }
8795 }
8796 }
8797
8798 #[gpui::test]
8799 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8800 let tab_size = 4;
8801 let input_text = "a\tbcd ".repeat(9);
8802 let repeated_invisibles = [
8803 Invisible::Tab {
8804 line_start_offset: 1,
8805 line_end_offset: tab_size as usize,
8806 },
8807 Invisible::Whitespace {
8808 line_offset: tab_size as usize + 3,
8809 },
8810 Invisible::Whitespace {
8811 line_offset: tab_size as usize + 4,
8812 },
8813 Invisible::Whitespace {
8814 line_offset: tab_size as usize + 5,
8815 },
8816 Invisible::Whitespace {
8817 line_offset: tab_size as usize + 6,
8818 },
8819 Invisible::Whitespace {
8820 line_offset: tab_size as usize + 7,
8821 },
8822 ];
8823 let expected_invisibles = std::iter::once(repeated_invisibles)
8824 .cycle()
8825 .take(9)
8826 .flatten()
8827 .collect::<Vec<_>>();
8828 assert_eq!(
8829 expected_invisibles.len(),
8830 input_text
8831 .chars()
8832 .filter(|initial_char| initial_char.is_whitespace())
8833 .count(),
8834 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8835 );
8836 info!("Expected invisibles: {expected_invisibles:?}");
8837
8838 init_test(cx, |_| {});
8839
8840 // Put the same string with repeating whitespace pattern into editors of various size,
8841 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8842 let resize_step = 10.0;
8843 let mut editor_width = 200.0;
8844 while editor_width <= 1000.0 {
8845 for show_line_numbers in [true, false] {
8846 update_test_language_settings(cx, |s| {
8847 s.defaults.tab_size = NonZeroU32::new(tab_size);
8848 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8849 s.defaults.preferred_line_length = Some(editor_width as u32);
8850 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8851 });
8852
8853 let actual_invisibles = collect_invisibles_from_new_editor(
8854 cx,
8855 EditorMode::Full,
8856 &input_text,
8857 px(editor_width),
8858 show_line_numbers,
8859 );
8860
8861 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8862 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8863 let mut i = 0;
8864 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8865 i = actual_index;
8866 match expected_invisibles.get(i) {
8867 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8868 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8869 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8870 _ => {
8871 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8872 }
8873 },
8874 None => {
8875 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8876 }
8877 }
8878 }
8879 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8880 assert!(
8881 missing_expected_invisibles.is_empty(),
8882 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8883 );
8884
8885 editor_width += resize_step;
8886 }
8887 }
8888 }
8889
8890 fn collect_invisibles_from_new_editor(
8891 cx: &mut TestAppContext,
8892 editor_mode: EditorMode,
8893 input_text: &str,
8894 editor_width: Pixels,
8895 show_line_numbers: bool,
8896 ) -> Vec<Invisible> {
8897 info!(
8898 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8899 editor_width.0
8900 );
8901 let window = cx.add_window(|window, cx| {
8902 let buffer = MultiBuffer::build_simple(input_text, cx);
8903 Editor::new(editor_mode, buffer, None, true, window, cx)
8904 });
8905 let cx = &mut VisualTestContext::from_window(*window, cx);
8906 let editor = window.root(cx).unwrap();
8907
8908 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8909 window
8910 .update(cx, |editor, _, cx| {
8911 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8912 editor.set_wrap_width(Some(editor_width), cx);
8913 editor.set_show_line_numbers(show_line_numbers, cx);
8914 })
8915 .unwrap();
8916 let (_, state) = cx.draw(
8917 point(px(500.), px(500.)),
8918 size(px(500.), px(500.)),
8919 |_, _| EditorElement::new(&editor, style),
8920 );
8921 state
8922 .position_map
8923 .line_layouts
8924 .iter()
8925 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8926 .cloned()
8927 .collect()
8928 }
8929}
8930
8931fn diff_hunk_controls(
8932 row: u32,
8933 hunk_range: Range<Anchor>,
8934 line_height: Pixels,
8935 editor: &Entity<Editor>,
8936 cx: &mut App,
8937) -> AnyElement {
8938 h_flex()
8939 .h(line_height)
8940 .mr_1()
8941 .gap_1()
8942 .px_1()
8943 .pb_1()
8944 .border_b_1()
8945 .border_color(cx.theme().colors().border_variant)
8946 .rounded_b_lg()
8947 .bg(cx.theme().colors().editor_background)
8948 .gap_1()
8949 .child(
8950 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8951 .shape(IconButtonShape::Square)
8952 .icon_size(IconSize::Small)
8953 // .disabled(!has_multiple_hunks)
8954 .tooltip({
8955 let focus_handle = editor.focus_handle(cx);
8956 move |window, cx| {
8957 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8958 }
8959 })
8960 .on_click({
8961 let editor = editor.clone();
8962 move |_event, window, cx| {
8963 editor.update(cx, |editor, cx| {
8964 let snapshot = editor.snapshot(window, cx);
8965 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8966 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8967 editor.expand_selected_diff_hunks(cx);
8968 });
8969 }
8970 }),
8971 )
8972 .child(
8973 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8974 .shape(IconButtonShape::Square)
8975 .icon_size(IconSize::Small)
8976 // .disabled(!has_multiple_hunks)
8977 .tooltip({
8978 let focus_handle = editor.focus_handle(cx);
8979 move |window, cx| {
8980 Tooltip::for_action_in(
8981 "Previous Hunk",
8982 &GoToPrevHunk,
8983 &focus_handle,
8984 window,
8985 cx,
8986 )
8987 }
8988 })
8989 .on_click({
8990 let editor = editor.clone();
8991 move |_event, window, cx| {
8992 editor.update(cx, |editor, cx| {
8993 let snapshot = editor.snapshot(window, cx);
8994 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8995 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8996 editor.expand_selected_diff_hunks(cx);
8997 });
8998 }
8999 }),
9000 )
9001 .child(
9002 IconButton::new("discard", IconName::Undo)
9003 .shape(IconButtonShape::Square)
9004 .icon_size(IconSize::Small)
9005 .tooltip({
9006 let focus_handle = editor.focus_handle(cx);
9007 move |window, cx| {
9008 Tooltip::for_action_in(
9009 "Discard Hunk",
9010 &RevertSelectedHunks,
9011 &focus_handle,
9012 window,
9013 cx,
9014 )
9015 }
9016 })
9017 .on_click({
9018 let editor = editor.clone();
9019 move |_event, window, cx| {
9020 editor.update(cx, |editor, cx| {
9021 let snapshot = editor.snapshot(window, cx);
9022 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9023 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
9024 });
9025 }
9026 }),
9027 )
9028 .into_any_element()
9029}