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 start_row,
3304 &line_layouts,
3305 style,
3306 accept_keystroke.as_ref()?,
3307 window,
3308 cx,
3309 )?;
3310 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3311 Some((CursorPopoverType::EditPrediction, element, size))
3312 })
3313 } else {
3314 None
3315 };
3316 vec![edit_prediction, context_menu]
3317 .into_iter()
3318 .flatten()
3319 .collect::<Vec<_>>()
3320 },
3321 ) else {
3322 return;
3323 };
3324
3325 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3326 .iter()
3327 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3328 else {
3329 return;
3330 };
3331 let last_ix = laid_out_popovers.len() - 1;
3332 let menu_is_last = menu_ix == last_ix;
3333 let first_popover_bounds = laid_out_popovers[0].1;
3334 let last_popover_bounds = laid_out_popovers[last_ix].1;
3335
3336 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3337 // right, and otherwise it goes below or to the right.
3338 let mut target_bounds = Bounds::from_corners(
3339 first_popover_bounds.origin,
3340 last_popover_bounds.bottom_right(),
3341 );
3342 target_bounds.size.width = menu_bounds.size.width;
3343
3344 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3345 // based on this is preferred for layout stability.
3346 let mut max_target_bounds = target_bounds;
3347 max_target_bounds.size.height = max_height;
3348 if y_flipped {
3349 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3350 }
3351
3352 // Add spacing around `target_bounds` and `max_target_bounds`.
3353 let mut extend_amount = Edges::all(MENU_GAP);
3354 if y_flipped {
3355 extend_amount.bottom = line_height;
3356 } else {
3357 extend_amount.top = line_height;
3358 }
3359 let target_bounds = target_bounds.extend(extend_amount);
3360 let max_target_bounds = max_target_bounds.extend(extend_amount);
3361
3362 let must_place_above_or_below =
3363 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3364 laid_out_popovers[menu_ix + 1..]
3365 .iter()
3366 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3367 } else {
3368 false
3369 };
3370
3371 self.layout_context_menu_aside(
3372 y_flipped,
3373 *menu_bounds,
3374 target_bounds,
3375 max_target_bounds,
3376 max_menu_height,
3377 must_place_above_or_below,
3378 text_hitbox,
3379 viewport_bounds,
3380 window,
3381 cx,
3382 );
3383 }
3384
3385 #[allow(clippy::too_many_arguments)]
3386 fn layout_gutter_menu(
3387 &self,
3388 line_height: Pixels,
3389 text_hitbox: &Hitbox,
3390 content_origin: gpui::Point<Pixels>,
3391 scroll_pixel_position: gpui::Point<Pixels>,
3392 gutter_overshoot: Pixels,
3393 window: &mut Window,
3394 cx: &mut App,
3395 ) {
3396 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3397 self.editor.read(cx).context_menu_origin()
3398 else {
3399 return;
3400 };
3401 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3402 // indicator than just a plain first column of the text field.
3403 let target_position = content_origin
3404 + gpui::Point {
3405 x: -gutter_overshoot,
3406 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3407 };
3408 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3409 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3410 let viewport_bounds =
3411 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3412 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3413 ..Default::default()
3414 });
3415 self.layout_popovers_above_or_below_line(
3416 target_position,
3417 line_height,
3418 min_height,
3419 max_height,
3420 text_hitbox,
3421 viewport_bounds,
3422 window,
3423 cx,
3424 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3425 let Some(mut element) =
3426 self.render_context_menu(line_height, height, y_flipped, window, cx)
3427 else {
3428 return vec![];
3429 };
3430 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3431 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3432 },
3433 );
3434 }
3435
3436 #[allow(clippy::too_many_arguments)]
3437 fn layout_popovers_above_or_below_line(
3438 &self,
3439 target_position: gpui::Point<Pixels>,
3440 line_height: Pixels,
3441 min_height: Pixels,
3442 max_height: Pixels,
3443 text_hitbox: &Hitbox,
3444 viewport_bounds: Bounds<Pixels>,
3445 window: &mut Window,
3446 cx: &mut App,
3447 make_sized_popovers: impl FnOnce(
3448 Pixels,
3449 Pixels,
3450 bool,
3451 &mut Window,
3452 &mut App,
3453 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3454 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3455 // If the max height won't fit below and there is more space above, put it above the line.
3456 let bottom_y_when_flipped = target_position.y - line_height;
3457 let available_above = bottom_y_when_flipped - text_hitbox.top();
3458 let available_below = text_hitbox.bottom() - target_position.y;
3459 let y_overflows_below = max_height > available_below;
3460 let mut y_flipped = y_overflows_below && available_above > available_below;
3461 let mut height = cmp::min(
3462 max_height,
3463 if y_flipped {
3464 available_above
3465 } else {
3466 available_below
3467 },
3468 );
3469
3470 // If the min height doesn't fit within text bounds, instead fit within the window.
3471 if height < min_height {
3472 let available_above = bottom_y_when_flipped;
3473 let available_below = viewport_bounds.bottom() - target_position.y;
3474 if available_below > min_height {
3475 y_flipped = false;
3476 height = min_height;
3477 } else if available_above > min_height {
3478 y_flipped = true;
3479 height = min_height;
3480 } else if available_above > available_below {
3481 y_flipped = true;
3482 height = available_above;
3483 } else {
3484 y_flipped = false;
3485 height = available_below;
3486 }
3487 }
3488
3489 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3490
3491 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3492 // for very narrow windows.
3493 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3494 if popovers.is_empty() {
3495 return None;
3496 }
3497
3498 let max_width = popovers
3499 .iter()
3500 .map(|(_, _, size)| size.width)
3501 .max()
3502 .unwrap_or_default();
3503
3504 let mut current_position = gpui::Point {
3505 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3506 // overflow. Include space for the scrollbar.
3507 x: target_position
3508 .x
3509 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3510 y: if y_flipped {
3511 bottom_y_when_flipped
3512 } else {
3513 target_position.y
3514 },
3515 };
3516
3517 let mut laid_out_popovers = popovers
3518 .into_iter()
3519 .map(|(popover_type, element, size)| {
3520 if y_flipped {
3521 current_position.y -= size.height;
3522 }
3523 let position = current_position;
3524 window.defer_draw(element, current_position, 1);
3525 if !y_flipped {
3526 current_position.y += size.height + MENU_GAP;
3527 } else {
3528 current_position.y -= MENU_GAP;
3529 }
3530 (popover_type, Bounds::new(position, size))
3531 })
3532 .collect::<Vec<_>>();
3533
3534 if y_flipped {
3535 laid_out_popovers.reverse();
3536 }
3537
3538 Some((laid_out_popovers, y_flipped))
3539 }
3540
3541 #[allow(clippy::too_many_arguments)]
3542 fn layout_context_menu_aside(
3543 &self,
3544 y_flipped: bool,
3545 menu_bounds: Bounds<Pixels>,
3546 target_bounds: Bounds<Pixels>,
3547 max_target_bounds: Bounds<Pixels>,
3548 max_height: Pixels,
3549 must_place_above_or_below: bool,
3550 text_hitbox: &Hitbox,
3551 viewport_bounds: Bounds<Pixels>,
3552 window: &mut Window,
3553 cx: &mut App,
3554 ) {
3555 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3556 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3557 && !must_place_above_or_below
3558 {
3559 let max_width = cmp::min(
3560 available_within_viewport.right - px(1.),
3561 MENU_ASIDE_MAX_WIDTH,
3562 );
3563 let Some(mut aside) =
3564 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3565 else {
3566 return;
3567 };
3568 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3569 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3570 Some((aside, right_position))
3571 } else {
3572 let max_size = size(
3573 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3574 // won't be needed here.
3575 cmp::min(
3576 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3577 viewport_bounds.right(),
3578 ),
3579 cmp::min(
3580 max_height,
3581 cmp::max(
3582 available_within_viewport.top,
3583 available_within_viewport.bottom,
3584 ),
3585 ) - POPOVER_Y_PADDING,
3586 );
3587 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3588 return;
3589 };
3590 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3591
3592 let top_position = point(
3593 menu_bounds.origin.x,
3594 target_bounds.top() - actual_size.height,
3595 );
3596 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3597
3598 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3599 // Prefer to fit on the same side of the line as the menu, then on the other side of
3600 // the line.
3601 if !y_flipped && wanted.height < available.bottom {
3602 Some(bottom_position)
3603 } else if !y_flipped && wanted.height < available.top {
3604 Some(top_position)
3605 } else if y_flipped && wanted.height < available.top {
3606 Some(top_position)
3607 } else if y_flipped && wanted.height < available.bottom {
3608 Some(bottom_position)
3609 } else {
3610 None
3611 }
3612 };
3613
3614 // Prefer choosing a direction using max sizes rather than actual size for stability.
3615 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3616 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3617 let aside_position = fit_within(available_within_text, wanted)
3618 // Fallback: fit max size in window.
3619 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3620 // Fallback: fit actual size in window.
3621 .or_else(|| fit_within(available_within_viewport, actual_size));
3622
3623 aside_position.map(|position| (aside, position))
3624 };
3625
3626 // Skip drawing if it doesn't fit anywhere.
3627 if let Some((aside, position)) = positioned_aside {
3628 window.defer_draw(aside, position, 1);
3629 }
3630 }
3631
3632 fn render_context_menu(
3633 &self,
3634 line_height: Pixels,
3635 height: Pixels,
3636 y_flipped: bool,
3637 window: &mut Window,
3638 cx: &mut App,
3639 ) -> Option<AnyElement> {
3640 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3641 self.editor.update(cx, |editor, cx| {
3642 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3643 })
3644 }
3645
3646 fn render_context_menu_aside(
3647 &self,
3648 max_size: Size<Pixels>,
3649
3650 cx: &mut App,
3651 ) -> Option<AnyElement> {
3652 if max_size.width < px(100.) || max_size.height < px(12.) {
3653 None
3654 } else {
3655 self.editor.update(cx, |editor, cx| {
3656 editor.render_context_menu_aside(&self.style, max_size, cx)
3657 })
3658 }
3659 }
3660
3661 #[allow(clippy::too_many_arguments)]
3662 fn layout_inline_completion_popover(
3663 &self,
3664 text_bounds: &Bounds<Pixels>,
3665 editor_snapshot: &EditorSnapshot,
3666 visible_row_range: Range<DisplayRow>,
3667 scroll_top: f32,
3668 scroll_bottom: f32,
3669 line_layouts: &[LineWithInvisibles],
3670 line_height: Pixels,
3671 scroll_pixel_position: gpui::Point<Pixels>,
3672 newest_selection_head: Option<DisplayPoint>,
3673 editor_width: Pixels,
3674 style: &EditorStyle,
3675 window: &mut Window,
3676 cx: &mut App,
3677 ) -> Option<AnyElement> {
3678 const PADDING_X: Pixels = Pixels(24.);
3679 const PADDING_Y: Pixels = Pixels(2.);
3680
3681 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3682
3683 match &active_inline_completion.completion {
3684 InlineCompletion::Move { target, .. } => {
3685 let previewing = false;
3686 let target_display_point = target.to_display_point(editor_snapshot);
3687 if target_display_point.row().as_f32() < scroll_top {
3688 let mut element = inline_completion_accept_indicator(
3689 "Jump to Edit",
3690 Some(IconName::ArrowUp),
3691 previewing,
3692 self.editor.focus_handle(cx),
3693 window,
3694 cx,
3695 );
3696 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3697 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3698 element.prepaint_at(text_bounds.origin + offset, window, cx);
3699 Some(element)
3700 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3701 let mut element = inline_completion_accept_indicator(
3702 "Jump to Edit",
3703 Some(IconName::ArrowDown),
3704 previewing,
3705 self.editor.focus_handle(cx),
3706 window,
3707 cx,
3708 );
3709 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3710 let offset = point(
3711 (text_bounds.size.width - size.width) / 2.,
3712 text_bounds.size.height - size.height - PADDING_Y,
3713 );
3714 element.prepaint_at(text_bounds.origin + offset, window, cx);
3715 Some(element)
3716 } else {
3717 let mut element = inline_completion_accept_indicator(
3718 "Jump to Edit",
3719 None,
3720 previewing,
3721 self.editor.focus_handle(cx),
3722 window,
3723 cx,
3724 );
3725
3726 let target_line_end = DisplayPoint::new(
3727 target_display_point.row(),
3728 editor_snapshot.line_len(target_display_point.row()),
3729 );
3730 let origin = self.editor.update(cx, |editor, _cx| {
3731 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3732 })?;
3733 element.prepaint_as_root(
3734 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3735 AvailableSpace::min_size(),
3736 window,
3737 cx,
3738 );
3739 Some(element)
3740 }
3741 }
3742 InlineCompletion::Edit {
3743 edits,
3744 edit_preview,
3745 display_mode,
3746 snapshot,
3747 } => {
3748 if self.editor.read(cx).has_active_completions_menu() {
3749 return None;
3750 }
3751
3752 let edit_start = edits
3753 .first()
3754 .unwrap()
3755 .0
3756 .start
3757 .to_display_point(editor_snapshot);
3758 let edit_end = edits
3759 .last()
3760 .unwrap()
3761 .0
3762 .end
3763 .to_display_point(editor_snapshot);
3764
3765 let is_visible = visible_row_range.contains(&edit_start.row())
3766 || visible_row_range.contains(&edit_end.row());
3767 if !is_visible {
3768 return None;
3769 }
3770
3771 match display_mode {
3772 EditDisplayMode::TabAccept(previewing) => {
3773 let previewing = *previewing;
3774 let range = &edits.first()?.0;
3775 let target_display_point = range.end.to_display_point(editor_snapshot);
3776
3777 let target_line_end = DisplayPoint::new(
3778 target_display_point.row(),
3779 editor_snapshot.line_len(target_display_point.row()),
3780 );
3781 let origin = self.editor.update(cx, |editor, _cx| {
3782 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3783 })?;
3784
3785 let mut element = inline_completion_accept_indicator(
3786 "Accept",
3787 None,
3788 previewing,
3789 self.editor.focus_handle(cx),
3790 window,
3791 cx,
3792 );
3793
3794 element.prepaint_as_root(
3795 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3796 AvailableSpace::min_size(),
3797 window,
3798 cx,
3799 );
3800
3801 return Some(element);
3802 }
3803 EditDisplayMode::Inline => return None,
3804 EditDisplayMode::DiffPopover => {}
3805 }
3806
3807 let highlighted_edits = crate::inline_completion_edit_text(
3808 &snapshot,
3809 edits,
3810 edit_preview.as_ref()?,
3811 false,
3812 cx,
3813 );
3814
3815 let line_count = highlighted_edits.text.lines().count();
3816
3817 let longest_row =
3818 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3819 let longest_line_width = if visible_row_range.contains(&longest_row) {
3820 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3821 } else {
3822 layout_line(
3823 longest_row,
3824 editor_snapshot,
3825 style,
3826 editor_width,
3827 |_| false,
3828 window,
3829 cx,
3830 )
3831 .width
3832 };
3833
3834 let styled_text = highlighted_edits.to_styled_text(&style.text);
3835
3836 let mut element = div()
3837 .bg(cx.theme().colors().editor_background)
3838 .border_1()
3839 .border_color(cx.theme().colors().border)
3840 .rounded_md()
3841 .child(styled_text)
3842 .into_any();
3843
3844 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3845 .extend(Edges {
3846 right: -Self::SCROLLBAR_WIDTH,
3847 ..Default::default()
3848 });
3849
3850 let x_after_longest =
3851 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3852
3853 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3854
3855 // Fully visible if it can be displayed within the window (allow overlapping other
3856 // panes). However, this is only allowed if the popover starts within text_bounds.
3857 let is_fully_visible = x_after_longest < text_bounds.right()
3858 && x_after_longest + element_bounds.width < viewport_bounds.right();
3859
3860 let origin = if is_fully_visible {
3861 point(
3862 x_after_longest,
3863 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3864 - scroll_pixel_position.y,
3865 )
3866 } else {
3867 // Avoid overlapping both the edited rows and the user's cursor.
3868 let target_above = DisplayRow(
3869 edit_start
3870 .row()
3871 .0
3872 .min(
3873 newest_selection_head
3874 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3875 )
3876 .saturating_sub(line_count as u32),
3877 );
3878 let mut row_target;
3879 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3880 row_target = target_above;
3881 } else {
3882 row_target = DisplayRow(
3883 edit_end.row().0.max(
3884 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3885 ) + 1,
3886 );
3887 if !visible_row_range.contains(&row_target) {
3888 // Not visible, so fallback on displaying immediately below the cursor.
3889 if let Some(cursor) = newest_selection_head {
3890 row_target = DisplayRow(cursor.row().0 + 1);
3891 } else {
3892 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3893 row_target = DisplayRow(0);
3894 }
3895 }
3896 };
3897
3898 text_bounds.origin
3899 + point(
3900 -scroll_pixel_position.x,
3901 row_target.as_f32() * line_height - scroll_pixel_position.y,
3902 )
3903 };
3904
3905 window.defer_draw(element, origin, 1);
3906
3907 // Do not return an element, since it will already be drawn due to defer_draw.
3908 None
3909 }
3910 }
3911 }
3912
3913 fn layout_mouse_context_menu(
3914 &self,
3915 editor_snapshot: &EditorSnapshot,
3916 visible_range: Range<DisplayRow>,
3917 content_origin: gpui::Point<Pixels>,
3918 window: &mut Window,
3919 cx: &mut App,
3920 ) -> Option<AnyElement> {
3921 let position = self.editor.update(cx, |editor, _cx| {
3922 let visible_start_point = editor.display_to_pixel_point(
3923 DisplayPoint::new(visible_range.start, 0),
3924 editor_snapshot,
3925 window,
3926 )?;
3927 let visible_end_point = editor.display_to_pixel_point(
3928 DisplayPoint::new(visible_range.end, 0),
3929 editor_snapshot,
3930 window,
3931 )?;
3932
3933 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3934 let (source_display_point, position) = match mouse_context_menu.position {
3935 MenuPosition::PinnedToScreen(point) => (None, point),
3936 MenuPosition::PinnedToEditor { source, offset } => {
3937 let source_display_point = source.to_display_point(editor_snapshot);
3938 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3939 let position = content_origin + source_point + offset;
3940 (Some(source_display_point), position)
3941 }
3942 };
3943
3944 let source_included = source_display_point.map_or(true, |source_display_point| {
3945 visible_range
3946 .to_inclusive()
3947 .contains(&source_display_point.row())
3948 });
3949 let position_included =
3950 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3951 if !source_included && !position_included {
3952 None
3953 } else {
3954 Some(position)
3955 }
3956 })?;
3957
3958 let mut element = self.editor.update(cx, |editor, _| {
3959 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3960 let context_menu = mouse_context_menu.context_menu.clone();
3961
3962 Some(
3963 deferred(
3964 anchored()
3965 .position(position)
3966 .child(context_menu)
3967 .anchor(Corner::TopLeft)
3968 .snap_to_window_with_margin(px(8.)),
3969 )
3970 .with_priority(1)
3971 .into_any(),
3972 )
3973 })?;
3974
3975 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3976 Some(element)
3977 }
3978
3979 #[allow(clippy::too_many_arguments)]
3980 fn layout_hover_popovers(
3981 &self,
3982 snapshot: &EditorSnapshot,
3983 hitbox: &Hitbox,
3984 text_hitbox: &Hitbox,
3985 visible_display_row_range: Range<DisplayRow>,
3986 content_origin: gpui::Point<Pixels>,
3987 scroll_pixel_position: gpui::Point<Pixels>,
3988 line_layouts: &[LineWithInvisibles],
3989 line_height: Pixels,
3990 em_width: Pixels,
3991 window: &mut Window,
3992 cx: &mut App,
3993 ) {
3994 struct MeasuredHoverPopover {
3995 element: AnyElement,
3996 size: Size<Pixels>,
3997 horizontal_offset: Pixels,
3998 }
3999
4000 let max_size = size(
4001 (120. * em_width) // Default size
4002 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4003 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4004 (16. * line_height) // Default size
4005 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4006 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4007 );
4008
4009 let hover_popovers = self.editor.update(cx, |editor, cx| {
4010 editor
4011 .hover_state
4012 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4013 });
4014 let Some((position, hover_popovers)) = hover_popovers else {
4015 return;
4016 };
4017
4018 // This is safe because we check on layout whether the required row is available
4019 let hovered_row_layout =
4020 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4021
4022 // Compute Hovered Point
4023 let x =
4024 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4025 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4026 let hovered_point = content_origin + point(x, y);
4027
4028 let mut overall_height = Pixels::ZERO;
4029 let mut measured_hover_popovers = Vec::new();
4030 for mut hover_popover in hover_popovers {
4031 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4032 let horizontal_offset =
4033 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4034
4035 overall_height += HOVER_POPOVER_GAP + size.height;
4036
4037 measured_hover_popovers.push(MeasuredHoverPopover {
4038 element: hover_popover,
4039 size,
4040 horizontal_offset,
4041 });
4042 }
4043 overall_height += HOVER_POPOVER_GAP;
4044
4045 fn draw_occluder(
4046 width: Pixels,
4047 origin: gpui::Point<Pixels>,
4048 window: &mut Window,
4049 cx: &mut App,
4050 ) {
4051 let mut occlusion = div()
4052 .size_full()
4053 .occlude()
4054 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4055 .into_any_element();
4056 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4057 window.defer_draw(occlusion, origin, 2);
4058 }
4059
4060 if hovered_point.y > overall_height {
4061 // There is enough space above. Render popovers above the hovered point
4062 let mut current_y = hovered_point.y;
4063 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4064 let size = popover.size;
4065 let popover_origin = point(
4066 hovered_point.x + popover.horizontal_offset,
4067 current_y - size.height,
4068 );
4069
4070 window.defer_draw(popover.element, popover_origin, 2);
4071 if position != itertools::Position::Last {
4072 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4073 draw_occluder(size.width, origin, window, cx);
4074 }
4075
4076 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4077 }
4078 } else {
4079 // There is not enough space above. Render popovers below the hovered point
4080 let mut current_y = hovered_point.y + line_height;
4081 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4082 let size = popover.size;
4083 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4084
4085 window.defer_draw(popover.element, popover_origin, 2);
4086 if position != itertools::Position::Last {
4087 let origin = point(popover_origin.x, popover_origin.y + size.height);
4088 draw_occluder(size.width, origin, window, cx);
4089 }
4090
4091 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4092 }
4093 }
4094 }
4095
4096 #[allow(clippy::too_many_arguments)]
4097 fn layout_diff_hunk_controls(
4098 &self,
4099 row_range: Range<DisplayRow>,
4100 row_infos: &[RowInfo],
4101 text_hitbox: &Hitbox,
4102 position_map: &PositionMap,
4103 newest_cursor_position: Option<DisplayPoint>,
4104 line_height: Pixels,
4105 scroll_pixel_position: gpui::Point<Pixels>,
4106 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4107 editor: Entity<Editor>,
4108 window: &mut Window,
4109 cx: &mut App,
4110 ) -> Vec<AnyElement> {
4111 let point_for_position =
4112 position_map.point_for_position(text_hitbox.bounds, window.mouse_position());
4113
4114 let mut controls = vec![];
4115
4116 let active_positions = [
4117 Some(point_for_position.previous_valid),
4118 newest_cursor_position,
4119 ];
4120
4121 for (hunk, _) in display_hunks {
4122 if let DisplayDiffHunk::Unfolded {
4123 display_row_range,
4124 multi_buffer_range,
4125 status,
4126 ..
4127 } = &hunk
4128 {
4129 if display_row_range.start < row_range.start
4130 || display_row_range.start >= row_range.end
4131 {
4132 continue;
4133 }
4134 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4135 if row_infos[row_ix].diff_status.is_none() {
4136 continue;
4137 }
4138 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4139 && *status != DiffHunkStatus::Added
4140 {
4141 continue;
4142 }
4143 if active_positions
4144 .iter()
4145 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4146 {
4147 let y = display_row_range.start.as_f32() * line_height
4148 + text_hitbox.bounds.top()
4149 - scroll_pixel_position.y;
4150 let x = text_hitbox.bounds.right() - px(100.);
4151
4152 let mut element = diff_hunk_controls(
4153 display_row_range.start.0,
4154 multi_buffer_range.clone(),
4155 line_height,
4156 &editor,
4157 cx,
4158 );
4159 element.prepaint_as_root(
4160 gpui::Point::new(x, y),
4161 size(px(100.0), line_height).into(),
4162 window,
4163 cx,
4164 );
4165 controls.push(element);
4166 }
4167 }
4168 }
4169
4170 controls
4171 }
4172
4173 #[allow(clippy::too_many_arguments)]
4174 fn layout_signature_help(
4175 &self,
4176 hitbox: &Hitbox,
4177 content_origin: gpui::Point<Pixels>,
4178 scroll_pixel_position: gpui::Point<Pixels>,
4179 newest_selection_head: Option<DisplayPoint>,
4180 start_row: DisplayRow,
4181 line_layouts: &[LineWithInvisibles],
4182 line_height: Pixels,
4183 em_width: Pixels,
4184 window: &mut Window,
4185 cx: &mut App,
4186 ) {
4187 if !self.editor.focus_handle(cx).is_focused(window) {
4188 return;
4189 }
4190 let Some(newest_selection_head) = newest_selection_head else {
4191 return;
4192 };
4193 let selection_row = newest_selection_head.row();
4194 if selection_row < start_row {
4195 return;
4196 }
4197 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4198 else {
4199 return;
4200 };
4201
4202 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4203 - scroll_pixel_position.x
4204 + content_origin.x;
4205 let start_y =
4206 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4207
4208 let max_size = size(
4209 (120. * em_width) // Default size
4210 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4211 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4212 (16. * line_height) // Default size
4213 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4214 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4215 );
4216
4217 let maybe_element = self.editor.update(cx, |editor, cx| {
4218 if let Some(popover) = editor.signature_help_state.popover_mut() {
4219 let element = popover.render(
4220 &self.style,
4221 max_size,
4222 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4223 cx,
4224 );
4225 Some(element)
4226 } else {
4227 None
4228 }
4229 });
4230 if let Some(mut element) = maybe_element {
4231 let window_size = window.viewport_size();
4232 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4233 let mut point = point(start_x, start_y - size.height);
4234
4235 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4236 if point.x + size.width >= window_size.width {
4237 point.x = window_size.width - size.width;
4238 }
4239
4240 window.defer_draw(element, point, 1)
4241 }
4242 }
4243
4244 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4245 window.paint_layer(layout.hitbox.bounds, |window| {
4246 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4247 let gutter_bg = cx.theme().colors().editor_gutter_background;
4248 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4249 window.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
4250
4251 if let EditorMode::Full = layout.mode {
4252 let mut active_rows = layout.active_rows.iter().peekable();
4253 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4254 let mut end_row = start_row.0;
4255 while active_rows
4256 .peek()
4257 .map_or(false, |(active_row, has_selection)| {
4258 active_row.0 == end_row + 1
4259 && *has_selection == contains_non_empty_selection
4260 })
4261 {
4262 active_rows.next().unwrap();
4263 end_row += 1;
4264 }
4265
4266 if !contains_non_empty_selection {
4267 let highlight_h_range =
4268 match layout.position_map.snapshot.current_line_highlight {
4269 CurrentLineHighlight::Gutter => Some(Range {
4270 start: layout.hitbox.left(),
4271 end: layout.gutter_hitbox.right(),
4272 }),
4273 CurrentLineHighlight::Line => Some(Range {
4274 start: layout.text_hitbox.bounds.left(),
4275 end: layout.text_hitbox.bounds.right(),
4276 }),
4277 CurrentLineHighlight::All => Some(Range {
4278 start: layout.hitbox.left(),
4279 end: layout.hitbox.right(),
4280 }),
4281 CurrentLineHighlight::None => None,
4282 };
4283 if let Some(range) = highlight_h_range {
4284 let active_line_bg = cx.theme().colors().editor_active_line_background;
4285 let bounds = Bounds {
4286 origin: point(
4287 range.start,
4288 layout.hitbox.origin.y
4289 + (start_row.as_f32() - scroll_top)
4290 * layout.position_map.line_height,
4291 ),
4292 size: size(
4293 range.end - range.start,
4294 layout.position_map.line_height
4295 * (end_row - start_row.0 + 1) as f32,
4296 ),
4297 };
4298 window.paint_quad(fill(bounds, active_line_bg));
4299 }
4300 }
4301 }
4302
4303 let mut paint_highlight =
4304 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4305 let origin = point(
4306 layout.hitbox.origin.x,
4307 layout.hitbox.origin.y
4308 + (highlight_row_start.as_f32() - scroll_top)
4309 * layout.position_map.line_height,
4310 );
4311 let size = size(
4312 layout.hitbox.size.width,
4313 layout.position_map.line_height
4314 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4315 );
4316 window.paint_quad(fill(Bounds { origin, size }, color));
4317 };
4318
4319 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4320 for (&new_row, &new_color) in &layout.highlighted_rows {
4321 match &mut current_paint {
4322 Some((current_color, current_range)) => {
4323 let current_color = *current_color;
4324 let new_range_started = current_color != new_color
4325 || current_range.end.next_row() != new_row;
4326 if new_range_started {
4327 paint_highlight(
4328 current_range.start,
4329 current_range.end,
4330 current_color,
4331 );
4332 current_paint = Some((new_color, new_row..new_row));
4333 continue;
4334 } else {
4335 current_range.end = current_range.end.next_row();
4336 }
4337 }
4338 None => current_paint = Some((new_color, new_row..new_row)),
4339 };
4340 }
4341 if let Some((color, range)) = current_paint {
4342 paint_highlight(range.start, range.end, color);
4343 }
4344
4345 let scroll_left =
4346 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4347
4348 for (wrap_position, active) in layout.wrap_guides.iter() {
4349 let x = (layout.text_hitbox.origin.x
4350 + *wrap_position
4351 + layout.position_map.em_width / 2.)
4352 - scroll_left;
4353
4354 let show_scrollbars = {
4355 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4356
4357 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4358 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4359 };
4360
4361 if x < layout.text_hitbox.origin.x
4362 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4363 {
4364 continue;
4365 }
4366
4367 let color = if *active {
4368 cx.theme().colors().editor_active_wrap_guide
4369 } else {
4370 cx.theme().colors().editor_wrap_guide
4371 };
4372 window.paint_quad(fill(
4373 Bounds {
4374 origin: point(x, layout.text_hitbox.origin.y),
4375 size: size(px(1.), layout.text_hitbox.size.height),
4376 },
4377 color,
4378 ));
4379 }
4380 }
4381 })
4382 }
4383
4384 fn paint_indent_guides(
4385 &mut self,
4386 layout: &mut EditorLayout,
4387 window: &mut Window,
4388 cx: &mut App,
4389 ) {
4390 let Some(indent_guides) = &layout.indent_guides else {
4391 return;
4392 };
4393
4394 let faded_color = |color: Hsla, alpha: f32| {
4395 let mut faded = color;
4396 faded.a = alpha;
4397 faded
4398 };
4399
4400 for indent_guide in indent_guides {
4401 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4402 let settings = indent_guide.settings;
4403
4404 // TODO fixed for now, expose them through themes later
4405 const INDENT_AWARE_ALPHA: f32 = 0.2;
4406 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4407 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4408 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4409
4410 let line_color = match (settings.coloring, indent_guide.active) {
4411 (IndentGuideColoring::Disabled, _) => None,
4412 (IndentGuideColoring::Fixed, false) => {
4413 Some(cx.theme().colors().editor_indent_guide)
4414 }
4415 (IndentGuideColoring::Fixed, true) => {
4416 Some(cx.theme().colors().editor_indent_guide_active)
4417 }
4418 (IndentGuideColoring::IndentAware, false) => {
4419 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4420 }
4421 (IndentGuideColoring::IndentAware, true) => {
4422 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4423 }
4424 };
4425
4426 let background_color = match (settings.background_coloring, indent_guide.active) {
4427 (IndentGuideBackgroundColoring::Disabled, _) => None,
4428 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4429 indent_accent_colors,
4430 INDENT_AWARE_BACKGROUND_ALPHA,
4431 )),
4432 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4433 indent_accent_colors,
4434 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4435 )),
4436 };
4437
4438 let requested_line_width = if indent_guide.active {
4439 settings.active_line_width
4440 } else {
4441 settings.line_width
4442 }
4443 .clamp(1, 10);
4444 let mut line_indicator_width = 0.;
4445 if let Some(color) = line_color {
4446 window.paint_quad(fill(
4447 Bounds {
4448 origin: indent_guide.origin,
4449 size: size(px(requested_line_width as f32), indent_guide.length),
4450 },
4451 color,
4452 ));
4453 line_indicator_width = requested_line_width as f32;
4454 }
4455
4456 if let Some(color) = background_color {
4457 let width = indent_guide.single_indent_width - px(line_indicator_width);
4458 window.paint_quad(fill(
4459 Bounds {
4460 origin: point(
4461 indent_guide.origin.x + px(line_indicator_width),
4462 indent_guide.origin.y,
4463 ),
4464 size: size(width, indent_guide.length),
4465 },
4466 color,
4467 ));
4468 }
4469 }
4470 }
4471
4472 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4473 let is_singleton = self.editor.read(cx).is_singleton(cx);
4474
4475 let line_height = layout.position_map.line_height;
4476 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4477
4478 for LineNumberLayout {
4479 shaped_line,
4480 hitbox,
4481 display_row,
4482 } in layout.line_numbers.values()
4483 {
4484 let Some(hitbox) = hitbox else {
4485 continue;
4486 };
4487
4488 let is_active = layout.active_rows.contains_key(&display_row);
4489
4490 let color = if is_active {
4491 cx.theme().colors().editor_active_line_number
4492 } else if !is_singleton && hitbox.is_hovered(window) {
4493 cx.theme().colors().editor_hover_line_number
4494 } else {
4495 cx.theme().colors().editor_line_number
4496 };
4497
4498 let Some(line) = self
4499 .shape_line_number(shaped_line.text.clone(), color, window)
4500 .log_err()
4501 else {
4502 continue;
4503 };
4504 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4505 continue;
4506 };
4507 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4508 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4509 if is_singleton {
4510 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4511 } else {
4512 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4513 }
4514 }
4515 }
4516
4517 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4518 if layout.display_hunks.is_empty() {
4519 return;
4520 }
4521
4522 let line_height = layout.position_map.line_height;
4523 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4524 for (hunk, hitbox) in &layout.display_hunks {
4525 let hunk_to_paint = match hunk {
4526 DisplayDiffHunk::Folded { .. } => {
4527 let hunk_bounds = Self::diff_hunk_bounds(
4528 &layout.position_map.snapshot,
4529 line_height,
4530 layout.gutter_hitbox.bounds,
4531 hunk,
4532 );
4533 Some((
4534 hunk_bounds,
4535 cx.theme().status().modified,
4536 Corners::all(px(0.)),
4537 ))
4538 }
4539 DisplayDiffHunk::Unfolded {
4540 status,
4541 display_row_range,
4542 ..
4543 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4544 DiffHunkStatus::Added => (
4545 hunk_hitbox.bounds,
4546 cx.theme().status().created,
4547 Corners::all(px(0.)),
4548 ),
4549 DiffHunkStatus::Modified => (
4550 hunk_hitbox.bounds,
4551 cx.theme().status().modified,
4552 Corners::all(px(0.)),
4553 ),
4554 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4555 hunk_hitbox.bounds,
4556 cx.theme().status().deleted,
4557 Corners::all(px(0.)),
4558 ),
4559 DiffHunkStatus::Removed => (
4560 Bounds::new(
4561 point(
4562 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4563 hunk_hitbox.origin.y,
4564 ),
4565 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4566 ),
4567 cx.theme().status().deleted,
4568 Corners::all(1. * line_height),
4569 ),
4570 }),
4571 };
4572
4573 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4574 window.paint_quad(quad(
4575 hunk_bounds,
4576 corner_radii,
4577 background_color,
4578 Edges::default(),
4579 transparent_black(),
4580 ));
4581 }
4582 }
4583 });
4584 }
4585
4586 fn diff_hunk_bounds(
4587 snapshot: &EditorSnapshot,
4588 line_height: Pixels,
4589 gutter_bounds: Bounds<Pixels>,
4590 hunk: &DisplayDiffHunk,
4591 ) -> Bounds<Pixels> {
4592 let scroll_position = snapshot.scroll_position();
4593 let scroll_top = scroll_position.y * line_height;
4594 let gutter_strip_width = (0.275 * line_height).floor();
4595
4596 match hunk {
4597 DisplayDiffHunk::Folded { display_row, .. } => {
4598 let start_y = display_row.as_f32() * line_height - scroll_top;
4599 let end_y = start_y + line_height;
4600 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4601 let highlight_size = size(gutter_strip_width, end_y - start_y);
4602 Bounds::new(highlight_origin, highlight_size)
4603 }
4604 DisplayDiffHunk::Unfolded {
4605 display_row_range,
4606 status,
4607 ..
4608 } => {
4609 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4610 let row = display_row_range.start;
4611
4612 let offset = line_height / 2.;
4613 let start_y = row.as_f32() * line_height - offset - scroll_top;
4614 let end_y = start_y + line_height;
4615
4616 let width = (0.35 * line_height).floor();
4617 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4618 let highlight_size = size(width, end_y - start_y);
4619 Bounds::new(highlight_origin, highlight_size)
4620 } else {
4621 let start_row = display_row_range.start;
4622 let end_row = display_row_range.end;
4623 // If we're in a multibuffer, row range span might include an
4624 // excerpt header, so if we were to draw the marker straight away,
4625 // the hunk might include the rows of that header.
4626 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4627 // Instead, we simply check whether the range we're dealing with includes
4628 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4629 let end_row_in_current_excerpt = snapshot
4630 .blocks_in_range(start_row..end_row)
4631 .find_map(|(start_row, block)| {
4632 if matches!(block, Block::ExcerptBoundary { .. }) {
4633 Some(start_row)
4634 } else {
4635 None
4636 }
4637 })
4638 .unwrap_or(end_row);
4639
4640 let start_y = start_row.as_f32() * line_height - scroll_top;
4641 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4642
4643 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4644 let highlight_size = size(gutter_strip_width, end_y - start_y);
4645 Bounds::new(highlight_origin, highlight_size)
4646 }
4647 }
4648 }
4649 }
4650
4651 fn paint_gutter_indicators(
4652 &self,
4653 layout: &mut EditorLayout,
4654 window: &mut Window,
4655 cx: &mut App,
4656 ) {
4657 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4658 window.with_element_namespace("crease_toggles", |window| {
4659 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4660 crease_toggle.paint(window, cx);
4661 }
4662 });
4663
4664 for test_indicator in layout.test_indicators.iter_mut() {
4665 test_indicator.paint(window, cx);
4666 }
4667
4668 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4669 indicator.paint(window, cx);
4670 }
4671 });
4672 }
4673
4674 fn paint_gutter_highlights(
4675 &self,
4676 layout: &mut EditorLayout,
4677 window: &mut Window,
4678 cx: &mut App,
4679 ) {
4680 for (_, hunk_hitbox) in &layout.display_hunks {
4681 if let Some(hunk_hitbox) = hunk_hitbox {
4682 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4683 }
4684 }
4685
4686 let show_git_gutter = layout
4687 .position_map
4688 .snapshot
4689 .show_git_diff_gutter
4690 .unwrap_or_else(|| {
4691 matches!(
4692 ProjectSettings::get_global(cx).git.git_gutter,
4693 Some(GitGutterSetting::TrackedFiles)
4694 )
4695 });
4696 if show_git_gutter {
4697 Self::paint_diff_hunks(layout, window, cx)
4698 }
4699
4700 let highlight_width = 0.275 * layout.position_map.line_height;
4701 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4702 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4703 for (range, color) in &layout.highlighted_gutter_ranges {
4704 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4705 layout.visible_display_row_range.start - DisplayRow(1)
4706 } else {
4707 range.start.row()
4708 };
4709 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4710 layout.visible_display_row_range.end + DisplayRow(1)
4711 } else {
4712 range.end.row()
4713 };
4714
4715 let start_y = layout.gutter_hitbox.top()
4716 + start_row.0 as f32 * layout.position_map.line_height
4717 - layout.position_map.scroll_pixel_position.y;
4718 let end_y = layout.gutter_hitbox.top()
4719 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4720 - layout.position_map.scroll_pixel_position.y;
4721 let bounds = Bounds::from_corners(
4722 point(layout.gutter_hitbox.left(), start_y),
4723 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4724 );
4725 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4726 }
4727 });
4728 }
4729
4730 fn paint_blamed_display_rows(
4731 &self,
4732 layout: &mut EditorLayout,
4733 window: &mut Window,
4734 cx: &mut App,
4735 ) {
4736 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4737 return;
4738 };
4739
4740 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4741 for mut blame_element in blamed_display_rows.into_iter() {
4742 blame_element.paint(window, cx);
4743 }
4744 })
4745 }
4746
4747 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4748 window.with_content_mask(
4749 Some(ContentMask {
4750 bounds: layout.text_hitbox.bounds,
4751 }),
4752 |window| {
4753 let cursor_style = if self
4754 .editor
4755 .read(cx)
4756 .hovered_link_state
4757 .as_ref()
4758 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4759 {
4760 CursorStyle::PointingHand
4761 } else {
4762 CursorStyle::IBeam
4763 };
4764 window.set_cursor_style(cursor_style, &layout.text_hitbox);
4765
4766 let invisible_display_ranges = self.paint_highlights(layout, window);
4767 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4768 self.paint_redactions(layout, window);
4769 self.paint_cursors(layout, window, cx);
4770 self.paint_inline_blame(layout, window, cx);
4771 self.paint_diff_hunk_controls(layout, window, cx);
4772 window.with_element_namespace("crease_trailers", |window| {
4773 for trailer in layout.crease_trailers.iter_mut().flatten() {
4774 trailer.element.paint(window, cx);
4775 }
4776 });
4777 },
4778 )
4779 }
4780
4781 fn paint_highlights(
4782 &mut self,
4783 layout: &mut EditorLayout,
4784 window: &mut Window,
4785 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4786 window.paint_layer(layout.text_hitbox.bounds, |window| {
4787 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4788 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4789 for (range, color) in &layout.highlighted_ranges {
4790 self.paint_highlighted_range(
4791 range.clone(),
4792 *color,
4793 Pixels::ZERO,
4794 line_end_overshoot,
4795 layout,
4796 window,
4797 );
4798 }
4799
4800 let corner_radius = 0.15 * layout.position_map.line_height;
4801
4802 for (player_color, selections) in &layout.selections {
4803 for selection in selections.iter() {
4804 self.paint_highlighted_range(
4805 selection.range.clone(),
4806 player_color.selection,
4807 corner_radius,
4808 corner_radius * 2.,
4809 layout,
4810 window,
4811 );
4812
4813 if selection.is_local && !selection.range.is_empty() {
4814 invisible_display_ranges.push(selection.range.clone());
4815 }
4816 }
4817 }
4818 invisible_display_ranges
4819 })
4820 }
4821
4822 fn paint_lines(
4823 &mut self,
4824 invisible_display_ranges: &[Range<DisplayPoint>],
4825 layout: &mut EditorLayout,
4826 window: &mut Window,
4827 cx: &mut App,
4828 ) {
4829 let whitespace_setting = self
4830 .editor
4831 .read(cx)
4832 .buffer
4833 .read(cx)
4834 .settings_at(0, cx)
4835 .show_whitespaces;
4836
4837 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4838 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4839 line_with_invisibles.draw(
4840 layout,
4841 row,
4842 layout.content_origin,
4843 whitespace_setting,
4844 invisible_display_ranges,
4845 window,
4846 cx,
4847 )
4848 }
4849
4850 for line_element in &mut layout.line_elements {
4851 line_element.paint(window, cx);
4852 }
4853 }
4854
4855 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4856 if layout.redacted_ranges.is_empty() {
4857 return;
4858 }
4859
4860 let line_end_overshoot = layout.line_end_overshoot();
4861
4862 // A softer than perfect black
4863 let redaction_color = gpui::rgb(0x0e1111);
4864
4865 window.paint_layer(layout.text_hitbox.bounds, |window| {
4866 for range in layout.redacted_ranges.iter() {
4867 self.paint_highlighted_range(
4868 range.clone(),
4869 redaction_color.into(),
4870 Pixels::ZERO,
4871 line_end_overshoot,
4872 layout,
4873 window,
4874 );
4875 }
4876 });
4877 }
4878
4879 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4880 for cursor in &mut layout.visible_cursors {
4881 cursor.paint(layout.content_origin, window, cx);
4882 }
4883 }
4884
4885 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4886 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4887
4888 if let Some(scrollbar_layout) = scrollbar_x {
4889 let hitbox = scrollbar_layout.hitbox.clone();
4890 let text_unit_size = scrollbar_layout.text_unit_size;
4891 let visible_range = scrollbar_layout.visible_range.clone();
4892 let thumb_bounds = scrollbar_layout.thumb_bounds();
4893
4894 if scrollbar_layout.visible {
4895 window.paint_layer(hitbox.bounds, |window| {
4896 window.paint_quad(quad(
4897 hitbox.bounds,
4898 Corners::default(),
4899 cx.theme().colors().scrollbar_track_background,
4900 Edges {
4901 top: Pixels::ZERO,
4902 right: Pixels::ZERO,
4903 bottom: Pixels::ZERO,
4904 left: Pixels::ZERO,
4905 },
4906 cx.theme().colors().scrollbar_track_border,
4907 ));
4908
4909 window.paint_quad(quad(
4910 thumb_bounds,
4911 Corners::default(),
4912 cx.theme().colors().scrollbar_thumb_background,
4913 Edges {
4914 top: Pixels::ZERO,
4915 right: Pixels::ZERO,
4916 bottom: Pixels::ZERO,
4917 left: ScrollbarLayout::BORDER_WIDTH,
4918 },
4919 cx.theme().colors().scrollbar_thumb_border,
4920 ));
4921 })
4922 }
4923
4924 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4925
4926 window.on_mouse_event({
4927 let editor = self.editor.clone();
4928
4929 // there may be a way to avoid this clone
4930 let hitbox = hitbox.clone();
4931
4932 let mut mouse_position = window.mouse_position();
4933 move |event: &MouseMoveEvent, phase, window, cx| {
4934 if phase == DispatchPhase::Capture {
4935 return;
4936 }
4937
4938 editor.update(cx, |editor, cx| {
4939 if event.pressed_button == Some(MouseButton::Left)
4940 && editor
4941 .scroll_manager
4942 .is_dragging_scrollbar(Axis::Horizontal)
4943 {
4944 let x = mouse_position.x;
4945 let new_x = event.position.x;
4946 if (hitbox.left()..hitbox.right()).contains(&x) {
4947 let mut position = editor.scroll_position(cx);
4948
4949 position.x += (new_x - x) / text_unit_size;
4950 if position.x < 0.0 {
4951 position.x = 0.0;
4952 }
4953 editor.set_scroll_position(position, window, cx);
4954 }
4955
4956 cx.stop_propagation();
4957 } else {
4958 editor.scroll_manager.set_is_dragging_scrollbar(
4959 Axis::Horizontal,
4960 false,
4961 cx,
4962 );
4963
4964 if hitbox.is_hovered(window) {
4965 editor.scroll_manager.show_scrollbar(window, cx);
4966 }
4967 }
4968 mouse_position = event.position;
4969 })
4970 }
4971 });
4972
4973 if self
4974 .editor
4975 .read(cx)
4976 .scroll_manager
4977 .is_dragging_scrollbar(Axis::Horizontal)
4978 {
4979 window.on_mouse_event({
4980 let editor = self.editor.clone();
4981 move |_: &MouseUpEvent, phase, _, cx| {
4982 if phase == DispatchPhase::Capture {
4983 return;
4984 }
4985
4986 editor.update(cx, |editor, cx| {
4987 editor.scroll_manager.set_is_dragging_scrollbar(
4988 Axis::Horizontal,
4989 false,
4990 cx,
4991 );
4992 cx.stop_propagation();
4993 });
4994 }
4995 });
4996 } else {
4997 window.on_mouse_event({
4998 let editor = self.editor.clone();
4999
5000 move |event: &MouseDownEvent, phase, window, cx| {
5001 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5002 return;
5003 }
5004
5005 editor.update(cx, |editor, cx| {
5006 editor.scroll_manager.set_is_dragging_scrollbar(
5007 Axis::Horizontal,
5008 true,
5009 cx,
5010 );
5011
5012 let x = event.position.x;
5013
5014 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5015 let center_row =
5016 ((x - hitbox.left()) / text_unit_size).round() as u32;
5017 let top_row = center_row.saturating_sub(
5018 (visible_range.end - visible_range.start) as u32 / 2,
5019 );
5020
5021 let mut position = editor.scroll_position(cx);
5022 position.x = top_row as f32;
5023
5024 editor.set_scroll_position(position, window, cx);
5025 } else {
5026 editor.scroll_manager.show_scrollbar(window, cx);
5027 }
5028
5029 cx.stop_propagation();
5030 });
5031 }
5032 });
5033 }
5034 }
5035
5036 if let Some(scrollbar_layout) = scrollbar_y {
5037 let hitbox = scrollbar_layout.hitbox.clone();
5038 let text_unit_size = scrollbar_layout.text_unit_size;
5039 let visible_range = scrollbar_layout.visible_range.clone();
5040 let thumb_bounds = scrollbar_layout.thumb_bounds();
5041
5042 if scrollbar_layout.visible {
5043 window.paint_layer(hitbox.bounds, |window| {
5044 window.paint_quad(quad(
5045 hitbox.bounds,
5046 Corners::default(),
5047 cx.theme().colors().scrollbar_track_background,
5048 Edges {
5049 top: Pixels::ZERO,
5050 right: Pixels::ZERO,
5051 bottom: Pixels::ZERO,
5052 left: ScrollbarLayout::BORDER_WIDTH,
5053 },
5054 cx.theme().colors().scrollbar_track_border,
5055 ));
5056
5057 let fast_markers =
5058 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5059 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5060 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5061
5062 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5063 for marker in markers.iter().chain(&fast_markers) {
5064 let mut marker = marker.clone();
5065 marker.bounds.origin += hitbox.origin;
5066 window.paint_quad(marker);
5067 }
5068
5069 window.paint_quad(quad(
5070 thumb_bounds,
5071 Corners::default(),
5072 cx.theme().colors().scrollbar_thumb_background,
5073 Edges {
5074 top: Pixels::ZERO,
5075 right: Pixels::ZERO,
5076 bottom: Pixels::ZERO,
5077 left: ScrollbarLayout::BORDER_WIDTH,
5078 },
5079 cx.theme().colors().scrollbar_thumb_border,
5080 ));
5081 });
5082 }
5083
5084 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5085
5086 window.on_mouse_event({
5087 let editor = self.editor.clone();
5088
5089 let hitbox = hitbox.clone();
5090
5091 let mut mouse_position = window.mouse_position();
5092 move |event: &MouseMoveEvent, phase, window, cx| {
5093 if phase == DispatchPhase::Capture {
5094 return;
5095 }
5096
5097 editor.update(cx, |editor, cx| {
5098 if event.pressed_button == Some(MouseButton::Left)
5099 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5100 {
5101 let y = mouse_position.y;
5102 let new_y = event.position.y;
5103 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5104 let mut position = editor.scroll_position(cx);
5105 position.y += (new_y - y) / text_unit_size;
5106 if position.y < 0.0 {
5107 position.y = 0.0;
5108 }
5109 editor.set_scroll_position(position, window, cx);
5110 }
5111 } else {
5112 editor.scroll_manager.set_is_dragging_scrollbar(
5113 Axis::Vertical,
5114 false,
5115 cx,
5116 );
5117
5118 if hitbox.is_hovered(window) {
5119 editor.scroll_manager.show_scrollbar(window, cx);
5120 }
5121 }
5122 mouse_position = event.position;
5123 })
5124 }
5125 });
5126
5127 if self
5128 .editor
5129 .read(cx)
5130 .scroll_manager
5131 .is_dragging_scrollbar(Axis::Vertical)
5132 {
5133 window.on_mouse_event({
5134 let editor = self.editor.clone();
5135 move |_: &MouseUpEvent, phase, _, cx| {
5136 if phase == DispatchPhase::Capture {
5137 return;
5138 }
5139
5140 editor.update(cx, |editor, cx| {
5141 editor.scroll_manager.set_is_dragging_scrollbar(
5142 Axis::Vertical,
5143 false,
5144 cx,
5145 );
5146 cx.stop_propagation();
5147 });
5148 }
5149 });
5150 } else {
5151 window.on_mouse_event({
5152 let editor = self.editor.clone();
5153
5154 move |event: &MouseDownEvent, phase, window, cx| {
5155 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5156 return;
5157 }
5158
5159 editor.update(cx, |editor, cx| {
5160 editor.scroll_manager.set_is_dragging_scrollbar(
5161 Axis::Vertical,
5162 true,
5163 cx,
5164 );
5165
5166 let y = event.position.y;
5167 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5168 let center_row =
5169 ((y - hitbox.top()) / text_unit_size).round() as u32;
5170 let top_row = center_row.saturating_sub(
5171 (visible_range.end - visible_range.start) as u32 / 2,
5172 );
5173 let mut position = editor.scroll_position(cx);
5174 position.y = top_row as f32;
5175 editor.set_scroll_position(position, window, cx);
5176 } else {
5177 editor.scroll_manager.show_scrollbar(window, cx);
5178 }
5179
5180 cx.stop_propagation();
5181 });
5182 }
5183 });
5184 }
5185 }
5186 }
5187
5188 fn collect_fast_scrollbar_markers(
5189 &self,
5190 layout: &EditorLayout,
5191 scrollbar_layout: &ScrollbarLayout,
5192 cx: &mut App,
5193 ) -> Vec<PaintQuad> {
5194 const LIMIT: usize = 100;
5195 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5196 return vec![];
5197 }
5198 let cursor_ranges = layout
5199 .cursors
5200 .iter()
5201 .map(|(point, color)| ColoredRange {
5202 start: point.row(),
5203 end: point.row(),
5204 color: *color,
5205 })
5206 .collect_vec();
5207 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5208 }
5209
5210 fn refresh_slow_scrollbar_markers(
5211 &self,
5212 layout: &EditorLayout,
5213 scrollbar_layout: &ScrollbarLayout,
5214 window: &mut Window,
5215 cx: &mut App,
5216 ) {
5217 self.editor.update(cx, |editor, cx| {
5218 if !editor.is_singleton(cx)
5219 || !editor
5220 .scrollbar_marker_state
5221 .should_refresh(scrollbar_layout.hitbox.size)
5222 {
5223 return;
5224 }
5225
5226 let scrollbar_layout = scrollbar_layout.clone();
5227 let background_highlights = editor.background_highlights.clone();
5228 let snapshot = layout.position_map.snapshot.clone();
5229 let theme = cx.theme().clone();
5230 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5231
5232 editor.scrollbar_marker_state.dirty = false;
5233 editor.scrollbar_marker_state.pending_refresh =
5234 Some(cx.spawn_in(window, |editor, mut cx| async move {
5235 let scrollbar_size = scrollbar_layout.hitbox.size;
5236 let scrollbar_markers = cx
5237 .background_executor()
5238 .spawn(async move {
5239 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5240 let mut marker_quads = Vec::new();
5241 if scrollbar_settings.git_diff {
5242 let marker_row_ranges =
5243 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5244 let start_display_row =
5245 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5246 .to_display_point(&snapshot.display_snapshot)
5247 .row();
5248 let mut end_display_row =
5249 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5250 .to_display_point(&snapshot.display_snapshot)
5251 .row();
5252 if end_display_row != start_display_row {
5253 end_display_row.0 -= 1;
5254 }
5255 let color = match &hunk.status() {
5256 DiffHunkStatus::Added => theme.status().created,
5257 DiffHunkStatus::Modified => theme.status().modified,
5258 DiffHunkStatus::Removed => theme.status().deleted,
5259 };
5260 ColoredRange {
5261 start: start_display_row,
5262 end: end_display_row,
5263 color,
5264 }
5265 });
5266
5267 marker_quads.extend(
5268 scrollbar_layout
5269 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5270 );
5271 }
5272
5273 for (background_highlight_id, (_, background_ranges)) in
5274 background_highlights.iter()
5275 {
5276 let is_search_highlights = *background_highlight_id
5277 == TypeId::of::<BufferSearchHighlights>();
5278 let is_symbol_occurrences = *background_highlight_id
5279 == TypeId::of::<DocumentHighlightRead>()
5280 || *background_highlight_id
5281 == TypeId::of::<DocumentHighlightWrite>();
5282 if (is_search_highlights && scrollbar_settings.search_results)
5283 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5284 {
5285 let mut color = theme.status().info;
5286 if is_symbol_occurrences {
5287 color.fade_out(0.5);
5288 }
5289 let marker_row_ranges = background_ranges.iter().map(|range| {
5290 let display_start = range
5291 .start
5292 .to_display_point(&snapshot.display_snapshot);
5293 let display_end =
5294 range.end.to_display_point(&snapshot.display_snapshot);
5295 ColoredRange {
5296 start: display_start.row(),
5297 end: display_end.row(),
5298 color,
5299 }
5300 });
5301 marker_quads.extend(
5302 scrollbar_layout
5303 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5304 );
5305 }
5306 }
5307
5308 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5309 let diagnostics = snapshot
5310 .buffer_snapshot
5311 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
5312 // Don't show diagnostics the user doesn't care about
5313 .filter(|diagnostic| {
5314 match (
5315 scrollbar_settings.diagnostics,
5316 diagnostic.diagnostic.severity,
5317 ) {
5318 (ScrollbarDiagnostics::All, _) => true,
5319 (
5320 ScrollbarDiagnostics::Error,
5321 DiagnosticSeverity::ERROR,
5322 ) => true,
5323 (
5324 ScrollbarDiagnostics::Warning,
5325 DiagnosticSeverity::ERROR
5326 | DiagnosticSeverity::WARNING,
5327 ) => true,
5328 (
5329 ScrollbarDiagnostics::Information,
5330 DiagnosticSeverity::ERROR
5331 | DiagnosticSeverity::WARNING
5332 | DiagnosticSeverity::INFORMATION,
5333 ) => true,
5334 (_, _) => false,
5335 }
5336 })
5337 // We want to sort by severity, in order to paint the most severe diagnostics last.
5338 .sorted_by_key(|diagnostic| {
5339 std::cmp::Reverse(diagnostic.diagnostic.severity)
5340 });
5341
5342 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5343 let start_display = diagnostic
5344 .range
5345 .start
5346 .to_display_point(&snapshot.display_snapshot);
5347 let end_display = diagnostic
5348 .range
5349 .end
5350 .to_display_point(&snapshot.display_snapshot);
5351 let color = match diagnostic.diagnostic.severity {
5352 DiagnosticSeverity::ERROR => theme.status().error,
5353 DiagnosticSeverity::WARNING => theme.status().warning,
5354 DiagnosticSeverity::INFORMATION => theme.status().info,
5355 _ => theme.status().hint,
5356 };
5357 ColoredRange {
5358 start: start_display.row(),
5359 end: end_display.row(),
5360 color,
5361 }
5362 });
5363 marker_quads.extend(
5364 scrollbar_layout
5365 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5366 );
5367 }
5368
5369 Arc::from(marker_quads)
5370 })
5371 .await;
5372
5373 editor.update(&mut cx, |editor, cx| {
5374 editor.scrollbar_marker_state.markers = scrollbar_markers;
5375 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5376 editor.scrollbar_marker_state.pending_refresh = None;
5377 cx.notify();
5378 })?;
5379
5380 Ok(())
5381 }));
5382 });
5383 }
5384
5385 #[allow(clippy::too_many_arguments)]
5386 fn paint_highlighted_range(
5387 &self,
5388 range: Range<DisplayPoint>,
5389 color: Hsla,
5390 corner_radius: Pixels,
5391 line_end_overshoot: Pixels,
5392 layout: &EditorLayout,
5393 window: &mut Window,
5394 ) {
5395 let start_row = layout.visible_display_row_range.start;
5396 let end_row = layout.visible_display_row_range.end;
5397 if range.start != range.end {
5398 let row_range = if range.end.column() == 0 {
5399 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5400 } else {
5401 cmp::max(range.start.row(), start_row)
5402 ..cmp::min(range.end.row().next_row(), end_row)
5403 };
5404
5405 let highlighted_range = HighlightedRange {
5406 color,
5407 line_height: layout.position_map.line_height,
5408 corner_radius,
5409 start_y: layout.content_origin.y
5410 + row_range.start.as_f32() * layout.position_map.line_height
5411 - layout.position_map.scroll_pixel_position.y,
5412 lines: row_range
5413 .iter_rows()
5414 .map(|row| {
5415 let line_layout =
5416 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5417 HighlightedRangeLine {
5418 start_x: if row == range.start.row() {
5419 layout.content_origin.x
5420 + line_layout.x_for_index(range.start.column() as usize)
5421 - layout.position_map.scroll_pixel_position.x
5422 } else {
5423 layout.content_origin.x
5424 - layout.position_map.scroll_pixel_position.x
5425 },
5426 end_x: if row == range.end.row() {
5427 layout.content_origin.x
5428 + line_layout.x_for_index(range.end.column() as usize)
5429 - layout.position_map.scroll_pixel_position.x
5430 } else {
5431 layout.content_origin.x + line_layout.width + line_end_overshoot
5432 - layout.position_map.scroll_pixel_position.x
5433 },
5434 }
5435 })
5436 .collect(),
5437 };
5438
5439 highlighted_range.paint(layout.text_hitbox.bounds, window);
5440 }
5441 }
5442
5443 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5444 if let Some(mut inline_blame) = layout.inline_blame.take() {
5445 window.paint_layer(layout.text_hitbox.bounds, |window| {
5446 inline_blame.paint(window, cx);
5447 })
5448 }
5449 }
5450
5451 fn paint_diff_hunk_controls(
5452 &mut self,
5453 layout: &mut EditorLayout,
5454 window: &mut Window,
5455 cx: &mut App,
5456 ) {
5457 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5458 diff_hunk_control.paint(window, cx);
5459 }
5460 }
5461
5462 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5463 for mut block in layout.blocks.drain(..) {
5464 block.element.paint(window, cx);
5465 }
5466 }
5467
5468 fn paint_inline_completion_popover(
5469 &mut self,
5470 layout: &mut EditorLayout,
5471 window: &mut Window,
5472 cx: &mut App,
5473 ) {
5474 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5475 inline_completion_popover.paint(window, cx);
5476 }
5477 }
5478
5479 fn paint_mouse_context_menu(
5480 &mut self,
5481 layout: &mut EditorLayout,
5482 window: &mut Window,
5483 cx: &mut App,
5484 ) {
5485 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5486 mouse_context_menu.paint(window, cx);
5487 }
5488 }
5489
5490 fn paint_scroll_wheel_listener(
5491 &mut self,
5492 layout: &EditorLayout,
5493 window: &mut Window,
5494 cx: &mut App,
5495 ) {
5496 window.on_mouse_event({
5497 let position_map = layout.position_map.clone();
5498 let editor = self.editor.clone();
5499 let hitbox = layout.hitbox.clone();
5500 let mut delta = ScrollDelta::default();
5501
5502 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5503 // accidentally turn off their scrolling.
5504 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5505
5506 move |event: &ScrollWheelEvent, phase, window, cx| {
5507 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5508 delta = delta.coalesce(event.delta);
5509 editor.update(cx, |editor, cx| {
5510 let position_map: &PositionMap = &position_map;
5511
5512 let line_height = position_map.line_height;
5513 let max_glyph_width = position_map.em_width;
5514 let (delta, axis) = match delta {
5515 gpui::ScrollDelta::Pixels(mut pixels) => {
5516 //Trackpad
5517 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5518 (pixels, axis)
5519 }
5520
5521 gpui::ScrollDelta::Lines(lines) => {
5522 //Not trackpad
5523 let pixels =
5524 point(lines.x * max_glyph_width, lines.y * line_height);
5525 (pixels, None)
5526 }
5527 };
5528
5529 let current_scroll_position = position_map.snapshot.scroll_position();
5530 let x = (current_scroll_position.x * max_glyph_width
5531 - (delta.x * scroll_sensitivity))
5532 / max_glyph_width;
5533 let y = (current_scroll_position.y * line_height
5534 - (delta.y * scroll_sensitivity))
5535 / line_height;
5536 let mut scroll_position =
5537 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5538 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5539 if forbid_vertical_scroll {
5540 scroll_position.y = current_scroll_position.y;
5541 }
5542
5543 if scroll_position != current_scroll_position {
5544 editor.scroll(scroll_position, axis, window, cx);
5545 cx.stop_propagation();
5546 } else if y < 0. {
5547 // Due to clamping, we may fail to detect cases of overscroll to the top;
5548 // We want the scroll manager to get an update in such cases and detect the change of direction
5549 // on the next frame.
5550 cx.notify();
5551 }
5552 });
5553 }
5554 }
5555 });
5556 }
5557
5558 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5559 self.paint_scroll_wheel_listener(layout, window, cx);
5560
5561 window.on_mouse_event({
5562 let position_map = layout.position_map.clone();
5563 let editor = self.editor.clone();
5564 let text_hitbox = layout.text_hitbox.clone();
5565 let gutter_hitbox = layout.gutter_hitbox.clone();
5566 let multi_buffer_range =
5567 layout
5568 .display_hunks
5569 .iter()
5570 .find_map(|(hunk, hunk_hitbox)| match hunk {
5571 DisplayDiffHunk::Folded { .. } => None,
5572 DisplayDiffHunk::Unfolded {
5573 multi_buffer_range, ..
5574 } => {
5575 if hunk_hitbox
5576 .as_ref()
5577 .map(|hitbox| hitbox.is_hovered(window))
5578 .unwrap_or(false)
5579 {
5580 Some(multi_buffer_range.clone())
5581 } else {
5582 None
5583 }
5584 }
5585 });
5586 let line_numbers = layout.line_numbers.clone();
5587
5588 move |event: &MouseDownEvent, phase, window, cx| {
5589 if phase == DispatchPhase::Bubble {
5590 match event.button {
5591 MouseButton::Left => editor.update(cx, |editor, cx| {
5592 let pending_mouse_down = editor
5593 .pending_mouse_down
5594 .get_or_insert_with(Default::default)
5595 .clone();
5596
5597 *pending_mouse_down.borrow_mut() = Some(event.clone());
5598
5599 Self::mouse_left_down(
5600 editor,
5601 event,
5602 multi_buffer_range.clone(),
5603 &position_map,
5604 &text_hitbox,
5605 &gutter_hitbox,
5606 line_numbers.as_ref(),
5607 window,
5608 cx,
5609 );
5610 }),
5611 MouseButton::Right => editor.update(cx, |editor, cx| {
5612 Self::mouse_right_down(
5613 editor,
5614 event,
5615 &position_map,
5616 &text_hitbox,
5617 window,
5618 cx,
5619 );
5620 }),
5621 MouseButton::Middle => editor.update(cx, |editor, cx| {
5622 Self::mouse_middle_down(
5623 editor,
5624 event,
5625 &position_map,
5626 &text_hitbox,
5627 window,
5628 cx,
5629 );
5630 }),
5631 _ => {}
5632 };
5633 }
5634 }
5635 });
5636
5637 window.on_mouse_event({
5638 let editor = self.editor.clone();
5639 let position_map = layout.position_map.clone();
5640 let text_hitbox = layout.text_hitbox.clone();
5641
5642 move |event: &MouseUpEvent, phase, window, cx| {
5643 if phase == DispatchPhase::Bubble {
5644 editor.update(cx, |editor, cx| {
5645 Self::mouse_up(editor, event, &position_map, &text_hitbox, window, cx)
5646 });
5647 }
5648 }
5649 });
5650
5651 window.on_mouse_event({
5652 let editor = self.editor.clone();
5653 let position_map = layout.position_map.clone();
5654 let text_hitbox = layout.text_hitbox.clone();
5655
5656 let mut captured_mouse_down = None;
5657
5658 move |event: &MouseUpEvent, phase, window, cx| match phase {
5659 // Clear the pending mouse down during the capture phase,
5660 // so that it happens even if another event handler stops
5661 // propagation.
5662 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5663 let pending_mouse_down = editor
5664 .pending_mouse_down
5665 .get_or_insert_with(Default::default)
5666 .clone();
5667
5668 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5669 if pending_mouse_down.is_some() && text_hitbox.is_hovered(window) {
5670 captured_mouse_down = pending_mouse_down.take();
5671 window.refresh();
5672 }
5673 }),
5674 // Fire click handlers during the bubble phase.
5675 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5676 if let Some(mouse_down) = captured_mouse_down.take() {
5677 let event = ClickEvent {
5678 down: mouse_down,
5679 up: event.clone(),
5680 };
5681 Self::click(editor, &event, &position_map, &text_hitbox, window, cx);
5682 }
5683 }),
5684 }
5685 });
5686
5687 window.on_mouse_event({
5688 let position_map = layout.position_map.clone();
5689 let editor = self.editor.clone();
5690 let text_hitbox = layout.text_hitbox.clone();
5691 let gutter_hitbox = layout.gutter_hitbox.clone();
5692
5693 move |event: &MouseMoveEvent, phase, window, cx| {
5694 if phase == DispatchPhase::Bubble {
5695 editor.update(cx, |editor, cx| {
5696 if editor.hover_state.focused(window, cx) {
5697 return;
5698 }
5699 if event.pressed_button == Some(MouseButton::Left)
5700 || event.pressed_button == Some(MouseButton::Middle)
5701 {
5702 Self::mouse_dragged(
5703 editor,
5704 event,
5705 &position_map,
5706 text_hitbox.bounds,
5707 window,
5708 cx,
5709 )
5710 }
5711
5712 Self::mouse_moved(
5713 editor,
5714 event,
5715 &position_map,
5716 &text_hitbox,
5717 &gutter_hitbox,
5718 window,
5719 cx,
5720 )
5721 });
5722 }
5723 }
5724 });
5725 }
5726
5727 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5728 bounds.top_right().x - self.style.scrollbar_width
5729 }
5730
5731 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5732 let style = &self.style;
5733 let font_size = style.text.font_size.to_pixels(window.rem_size());
5734 let layout = window
5735 .text_system()
5736 .shape_line(
5737 SharedString::from(" ".repeat(column)),
5738 font_size,
5739 &[TextRun {
5740 len: column,
5741 font: style.text.font(),
5742 color: Hsla::default(),
5743 background_color: None,
5744 underline: None,
5745 strikethrough: None,
5746 }],
5747 )
5748 .unwrap();
5749
5750 layout.width
5751 }
5752
5753 fn max_line_number_width(
5754 &self,
5755 snapshot: &EditorSnapshot,
5756 window: &mut Window,
5757 cx: &mut App,
5758 ) -> Pixels {
5759 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5760 self.column_pixels(digit_count, window, cx)
5761 }
5762
5763 fn shape_line_number(
5764 &self,
5765 text: SharedString,
5766 color: Hsla,
5767 window: &mut Window,
5768 ) -> anyhow::Result<ShapedLine> {
5769 let run = TextRun {
5770 len: text.len(),
5771 font: self.style.text.font(),
5772 color,
5773 background_color: None,
5774 underline: None,
5775 strikethrough: None,
5776 };
5777 window.text_system().shape_line(
5778 text,
5779 self.style.text.font_size.to_pixels(window.rem_size()),
5780 &[run],
5781 )
5782 }
5783}
5784
5785fn header_jump_data(
5786 snapshot: &EditorSnapshot,
5787 block_row_start: DisplayRow,
5788 height: u32,
5789 for_excerpt: &ExcerptInfo,
5790) -> JumpData {
5791 let range = &for_excerpt.range;
5792 let buffer = &for_excerpt.buffer;
5793 let jump_anchor = range
5794 .primary
5795 .as_ref()
5796 .map_or(range.context.start, |primary| primary.start);
5797
5798 let excerpt_start = range.context.start;
5799 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5800 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5801 0
5802 } else {
5803 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5804 jump_position.row.saturating_sub(excerpt_start_point.row)
5805 };
5806
5807 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5808 .saturating_sub(
5809 snapshot
5810 .scroll_anchor
5811 .scroll_position(&snapshot.display_snapshot)
5812 .y as u32,
5813 );
5814
5815 JumpData::MultiBufferPoint {
5816 excerpt_id: for_excerpt.id,
5817 anchor: jump_anchor,
5818 position: jump_position,
5819 line_offset_from_top,
5820 }
5821}
5822
5823fn inline_completion_accept_indicator(
5824 label: impl Into<SharedString>,
5825 icon: Option<IconName>,
5826 previewing: bool,
5827 focus_handle: FocusHandle,
5828 window: &Window,
5829 cx: &App,
5830) -> AnyElement {
5831 let use_hardcoded_linux_preview_binding;
5832
5833 #[cfg(target_os = "macos")]
5834 {
5835 use_hardcoded_linux_preview_binding = false;
5836 }
5837
5838 #[cfg(not(target_os = "macos"))]
5839 {
5840 use_hardcoded_linux_preview_binding = previewing;
5841 }
5842
5843 let accept_keystroke = if use_hardcoded_linux_preview_binding {
5844 Keystroke {
5845 modifiers: Default::default(),
5846 key: "enter".to_string(),
5847 key_char: None,
5848 }
5849 } else {
5850 let bindings = window.bindings_for_action_in(&crate::AcceptInlineCompletion, &focus_handle);
5851 if let Some(keystroke) = bindings
5852 .last()
5853 .and_then(|binding| binding.keystrokes().first())
5854 {
5855 // TODO: clone unnecessary once `use_hardcoded_linux_preview_binding` is removed.
5856 keystroke.clone()
5857 } else {
5858 return div().into_any();
5859 }
5860 };
5861
5862 let accept_key = h_flex()
5863 .px_0p5()
5864 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5865 .text_size(TextSize::XSmall.rems(cx))
5866 .text_color(cx.theme().colors().text)
5867 .gap_1()
5868 .when(!previewing, |parent| {
5869 parent.children(ui::render_modifiers(
5870 &accept_keystroke.modifiers,
5871 PlatformStyle::platform(),
5872 Some(Color::Default),
5873 false,
5874 ))
5875 })
5876 .child(accept_keystroke.key.clone());
5877
5878 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5879
5880 h_flex()
5881 .py_0p5()
5882 .pl_1()
5883 .pr(padding_right)
5884 .gap_1()
5885 .bg(cx.theme().colors().text_accent.opacity(0.15))
5886 .border_1()
5887 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5888 .rounded_md()
5889 .shadow_sm()
5890 .child(accept_key)
5891 .child(Label::new(label).size(LabelSize::Small))
5892 .when_some(icon, |element, icon| {
5893 element.child(
5894 div()
5895 .mt(px(1.5))
5896 .child(Icon::new(icon).size(IconSize::Small)),
5897 )
5898 })
5899 .into_any()
5900}
5901
5902#[allow(clippy::too_many_arguments)]
5903fn prepaint_gutter_button(
5904 button: IconButton,
5905 row: DisplayRow,
5906 line_height: Pixels,
5907 gutter_dimensions: &GutterDimensions,
5908 scroll_pixel_position: gpui::Point<Pixels>,
5909 gutter_hitbox: &Hitbox,
5910 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5911 window: &mut Window,
5912 cx: &mut App,
5913) -> AnyElement {
5914 let mut button = button.into_any_element();
5915 let available_space = size(
5916 AvailableSpace::MinContent,
5917 AvailableSpace::Definite(line_height),
5918 );
5919 let indicator_size = button.layout_as_root(available_space, window, cx);
5920
5921 let blame_width = gutter_dimensions.git_blame_entries_width;
5922 let gutter_width = rows_with_hunk_bounds
5923 .get(&row)
5924 .map(|bounds| bounds.size.width);
5925 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5926
5927 let mut x = left_offset;
5928 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5929 - indicator_size.width
5930 - left_offset;
5931 x += available_width / 2.;
5932
5933 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5934 y += (line_height - indicator_size.height) / 2.;
5935
5936 button.prepaint_as_root(
5937 gutter_hitbox.origin + point(x, y),
5938 available_space,
5939 window,
5940 cx,
5941 );
5942 button
5943}
5944
5945fn render_inline_blame_entry(
5946 blame: &gpui::Entity<GitBlame>,
5947 blame_entry: BlameEntry,
5948 style: &EditorStyle,
5949 workspace: Option<WeakEntity<Workspace>>,
5950 cx: &mut App,
5951) -> AnyElement {
5952 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5953
5954 let author = blame_entry.author.as_deref().unwrap_or_default();
5955 let summary_enabled = ProjectSettings::get_global(cx)
5956 .git
5957 .show_inline_commit_summary();
5958
5959 let text = match blame_entry.summary.as_ref() {
5960 Some(summary) if summary_enabled => {
5961 format!("{}, {} - {}", author, relative_timestamp, summary)
5962 }
5963 _ => format!("{}, {}", author, relative_timestamp),
5964 };
5965
5966 let details = blame.read(cx).details_for_entry(&blame_entry);
5967
5968 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5969
5970 h_flex()
5971 .id("inline-blame")
5972 .w_full()
5973 .font_family(style.text.font().family)
5974 .text_color(cx.theme().status().hint)
5975 .line_height(style.text.line_height)
5976 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5977 .child(text)
5978 .gap_2()
5979 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5980 .into_any()
5981}
5982
5983fn render_blame_entry(
5984 ix: usize,
5985 blame: &gpui::Entity<GitBlame>,
5986 blame_entry: BlameEntry,
5987 style: &EditorStyle,
5988 last_used_color: &mut Option<(PlayerColor, Oid)>,
5989 editor: Entity<Editor>,
5990 cx: &mut App,
5991) -> AnyElement {
5992 let mut sha_color = cx
5993 .theme()
5994 .players()
5995 .color_for_participant(blame_entry.sha.into());
5996 // If the last color we used is the same as the one we get for this line, but
5997 // the commit SHAs are different, then we try again to get a different color.
5998 match *last_used_color {
5999 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
6000 let index: u32 = blame_entry.sha.into();
6001 sha_color = cx.theme().players().color_for_participant(index + 1);
6002 }
6003 _ => {}
6004 };
6005 last_used_color.replace((sha_color, blame_entry.sha));
6006
6007 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
6008
6009 let short_commit_id = blame_entry.sha.display_short();
6010
6011 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
6012 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
6013
6014 let details = blame.read(cx).details_for_entry(&blame_entry);
6015
6016 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
6017
6018 let tooltip =
6019 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
6020
6021 h_flex()
6022 .w_full()
6023 .justify_between()
6024 .font_family(style.text.font().family)
6025 .line_height(style.text.line_height)
6026 .id(("blame", ix))
6027 .text_color(cx.theme().status().hint)
6028 .pr_2()
6029 .gap_2()
6030 .child(
6031 h_flex()
6032 .items_center()
6033 .gap_2()
6034 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6035 .child(name),
6036 )
6037 .child(relative_timestamp)
6038 .on_mouse_down(MouseButton::Right, {
6039 let blame_entry = blame_entry.clone();
6040 let details = details.clone();
6041 move |event, window, cx| {
6042 deploy_blame_entry_context_menu(
6043 &blame_entry,
6044 details.as_ref(),
6045 editor.clone(),
6046 event.position,
6047 window,
6048 cx,
6049 );
6050 }
6051 })
6052 .hover(|style| style.bg(cx.theme().colors().element_hover))
6053 .when_some(
6054 details.and_then(|details| details.permalink),
6055 |this, url| {
6056 let url = url.clone();
6057 this.cursor_pointer().on_click(move |_, _, cx| {
6058 cx.stop_propagation();
6059 cx.open_url(url.as_str())
6060 })
6061 },
6062 )
6063 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6064 .into_any()
6065}
6066
6067fn deploy_blame_entry_context_menu(
6068 blame_entry: &BlameEntry,
6069 details: Option<&CommitDetails>,
6070 editor: Entity<Editor>,
6071 position: gpui::Point<Pixels>,
6072 window: &mut Window,
6073 cx: &mut App,
6074) {
6075 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6076 let sha = format!("{}", blame_entry.sha);
6077 menu.on_blur_subscription(Subscription::new(|| {}))
6078 .entry("Copy commit SHA", None, move |_, cx| {
6079 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6080 })
6081 .when_some(
6082 details.and_then(|details| details.permalink.clone()),
6083 |this, url| {
6084 this.entry("Open permalink", None, move |_, cx| {
6085 cx.open_url(url.as_str())
6086 })
6087 },
6088 )
6089 });
6090
6091 editor.update(cx, move |editor, cx| {
6092 editor.mouse_context_menu = Some(MouseContextMenu::new(
6093 MenuPosition::PinnedToScreen(position),
6094 context_menu,
6095 window,
6096 cx,
6097 ));
6098 cx.notify();
6099 });
6100}
6101
6102#[derive(Debug)]
6103pub(crate) struct LineWithInvisibles {
6104 fragments: SmallVec<[LineFragment; 1]>,
6105 invisibles: Vec<Invisible>,
6106 len: usize,
6107 width: Pixels,
6108 font_size: Pixels,
6109}
6110
6111#[allow(clippy::large_enum_variant)]
6112enum LineFragment {
6113 Text(ShapedLine),
6114 Element {
6115 element: Option<AnyElement>,
6116 size: Size<Pixels>,
6117 len: usize,
6118 },
6119}
6120
6121impl fmt::Debug for LineFragment {
6122 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6123 match self {
6124 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6125 LineFragment::Element { size, len, .. } => f
6126 .debug_struct("Element")
6127 .field("size", size)
6128 .field("len", len)
6129 .finish(),
6130 }
6131 }
6132}
6133
6134impl LineWithInvisibles {
6135 #[allow(clippy::too_many_arguments)]
6136 fn from_chunks<'a>(
6137 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6138 editor_style: &EditorStyle,
6139 max_line_len: usize,
6140 max_line_count: usize,
6141 editor_mode: EditorMode,
6142 text_width: Pixels,
6143 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6144 window: &mut Window,
6145 cx: &mut App,
6146 ) -> Vec<Self> {
6147 let text_style = &editor_style.text;
6148 let mut layouts = Vec::with_capacity(max_line_count);
6149 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6150 let mut line = String::new();
6151 let mut invisibles = Vec::new();
6152 let mut width = Pixels::ZERO;
6153 let mut len = 0;
6154 let mut styles = Vec::new();
6155 let mut non_whitespace_added = false;
6156 let mut row = 0;
6157 let mut line_exceeded_max_len = false;
6158 let font_size = text_style.font_size.to_pixels(window.rem_size());
6159
6160 let ellipsis = SharedString::from("⋯");
6161
6162 for highlighted_chunk in chunks.chain([HighlightedChunk {
6163 text: "\n",
6164 style: None,
6165 is_tab: false,
6166 replacement: None,
6167 }]) {
6168 if let Some(replacement) = highlighted_chunk.replacement {
6169 if !line.is_empty() {
6170 let shaped_line = window
6171 .text_system()
6172 .shape_line(line.clone().into(), font_size, &styles)
6173 .unwrap();
6174 width += shaped_line.width;
6175 len += shaped_line.len;
6176 fragments.push(LineFragment::Text(shaped_line));
6177 line.clear();
6178 styles.clear();
6179 }
6180
6181 match replacement {
6182 ChunkReplacement::Renderer(renderer) => {
6183 let available_width = if renderer.constrain_width {
6184 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6185 ellipsis.clone()
6186 } else {
6187 SharedString::from(Arc::from(highlighted_chunk.text))
6188 };
6189 let shaped_line = window
6190 .text_system()
6191 .shape_line(
6192 chunk,
6193 font_size,
6194 &[text_style.to_run(highlighted_chunk.text.len())],
6195 )
6196 .unwrap();
6197 AvailableSpace::Definite(shaped_line.width)
6198 } else {
6199 AvailableSpace::MinContent
6200 };
6201
6202 let mut element = (renderer.render)(&mut ChunkRendererContext {
6203 context: cx,
6204 window,
6205 max_width: text_width,
6206 });
6207 let line_height = text_style.line_height_in_pixels(window.rem_size());
6208 let size = element.layout_as_root(
6209 size(available_width, AvailableSpace::Definite(line_height)),
6210 window,
6211 cx,
6212 );
6213
6214 width += size.width;
6215 len += highlighted_chunk.text.len();
6216 fragments.push(LineFragment::Element {
6217 element: Some(element),
6218 size,
6219 len: highlighted_chunk.text.len(),
6220 });
6221 }
6222 ChunkReplacement::Str(x) => {
6223 let text_style = if let Some(style) = highlighted_chunk.style {
6224 Cow::Owned(text_style.clone().highlight(style))
6225 } else {
6226 Cow::Borrowed(text_style)
6227 };
6228
6229 let run = TextRun {
6230 len: x.len(),
6231 font: text_style.font(),
6232 color: text_style.color,
6233 background_color: text_style.background_color,
6234 underline: text_style.underline,
6235 strikethrough: text_style.strikethrough,
6236 };
6237 let line_layout = window
6238 .text_system()
6239 .shape_line(x, font_size, &[run])
6240 .unwrap()
6241 .with_len(highlighted_chunk.text.len());
6242
6243 width += line_layout.width;
6244 len += highlighted_chunk.text.len();
6245 fragments.push(LineFragment::Text(line_layout))
6246 }
6247 }
6248 } else {
6249 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6250 if ix > 0 {
6251 let shaped_line = window
6252 .text_system()
6253 .shape_line(line.clone().into(), font_size, &styles)
6254 .unwrap();
6255 width += shaped_line.width;
6256 len += shaped_line.len;
6257 fragments.push(LineFragment::Text(shaped_line));
6258 layouts.push(Self {
6259 width: mem::take(&mut width),
6260 len: mem::take(&mut len),
6261 fragments: mem::take(&mut fragments),
6262 invisibles: std::mem::take(&mut invisibles),
6263 font_size,
6264 });
6265
6266 line.clear();
6267 styles.clear();
6268 row += 1;
6269 line_exceeded_max_len = false;
6270 non_whitespace_added = false;
6271 if row == max_line_count {
6272 return layouts;
6273 }
6274 }
6275
6276 if !line_chunk.is_empty() && !line_exceeded_max_len {
6277 let text_style = if let Some(style) = highlighted_chunk.style {
6278 Cow::Owned(text_style.clone().highlight(style))
6279 } else {
6280 Cow::Borrowed(text_style)
6281 };
6282
6283 if line.len() + line_chunk.len() > max_line_len {
6284 let mut chunk_len = max_line_len - line.len();
6285 while !line_chunk.is_char_boundary(chunk_len) {
6286 chunk_len -= 1;
6287 }
6288 line_chunk = &line_chunk[..chunk_len];
6289 line_exceeded_max_len = true;
6290 }
6291
6292 styles.push(TextRun {
6293 len: line_chunk.len(),
6294 font: text_style.font(),
6295 color: text_style.color,
6296 background_color: text_style.background_color,
6297 underline: text_style.underline,
6298 strikethrough: text_style.strikethrough,
6299 });
6300
6301 if editor_mode == EditorMode::Full {
6302 // Line wrap pads its contents with fake whitespaces,
6303 // avoid printing them
6304 let is_soft_wrapped = is_row_soft_wrapped(row);
6305 if highlighted_chunk.is_tab {
6306 if non_whitespace_added || !is_soft_wrapped {
6307 invisibles.push(Invisible::Tab {
6308 line_start_offset: line.len(),
6309 line_end_offset: line.len() + line_chunk.len(),
6310 });
6311 }
6312 } else {
6313 invisibles.extend(line_chunk.char_indices().filter_map(
6314 |(index, c)| {
6315 let is_whitespace = c.is_whitespace();
6316 non_whitespace_added |= !is_whitespace;
6317 if is_whitespace
6318 && (non_whitespace_added || !is_soft_wrapped)
6319 {
6320 Some(Invisible::Whitespace {
6321 line_offset: line.len() + index,
6322 })
6323 } else {
6324 None
6325 }
6326 },
6327 ))
6328 }
6329 }
6330
6331 line.push_str(line_chunk);
6332 }
6333 }
6334 }
6335 }
6336
6337 layouts
6338 }
6339
6340 #[allow(clippy::too_many_arguments)]
6341 fn prepaint(
6342 &mut self,
6343 line_height: Pixels,
6344 scroll_pixel_position: gpui::Point<Pixels>,
6345 row: DisplayRow,
6346 content_origin: gpui::Point<Pixels>,
6347 line_elements: &mut SmallVec<[AnyElement; 1]>,
6348 window: &mut Window,
6349 cx: &mut App,
6350 ) {
6351 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6352 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6353 for fragment in &mut self.fragments {
6354 match fragment {
6355 LineFragment::Text(line) => {
6356 fragment_origin.x += line.width;
6357 }
6358 LineFragment::Element { element, size, .. } => {
6359 let mut element = element
6360 .take()
6361 .expect("you can't prepaint LineWithInvisibles twice");
6362
6363 // Center the element vertically within the line.
6364 let mut element_origin = fragment_origin;
6365 element_origin.y += (line_height - size.height) / 2.;
6366 element.prepaint_at(element_origin, window, cx);
6367 line_elements.push(element);
6368
6369 fragment_origin.x += size.width;
6370 }
6371 }
6372 }
6373 }
6374
6375 #[allow(clippy::too_many_arguments)]
6376 fn draw(
6377 &self,
6378 layout: &EditorLayout,
6379 row: DisplayRow,
6380 content_origin: gpui::Point<Pixels>,
6381 whitespace_setting: ShowWhitespaceSetting,
6382 selection_ranges: &[Range<DisplayPoint>],
6383 window: &mut Window,
6384 cx: &mut App,
6385 ) {
6386 let line_height = layout.position_map.line_height;
6387 let line_y = line_height
6388 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6389
6390 let mut fragment_origin =
6391 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6392
6393 for fragment in &self.fragments {
6394 match fragment {
6395 LineFragment::Text(line) => {
6396 line.paint(fragment_origin, line_height, window, cx)
6397 .log_err();
6398 fragment_origin.x += line.width;
6399 }
6400 LineFragment::Element { size, .. } => {
6401 fragment_origin.x += size.width;
6402 }
6403 }
6404 }
6405
6406 self.draw_invisibles(
6407 selection_ranges,
6408 layout,
6409 content_origin,
6410 line_y,
6411 row,
6412 line_height,
6413 whitespace_setting,
6414 window,
6415 cx,
6416 );
6417 }
6418
6419 #[allow(clippy::too_many_arguments)]
6420 fn draw_invisibles(
6421 &self,
6422 selection_ranges: &[Range<DisplayPoint>],
6423 layout: &EditorLayout,
6424 content_origin: gpui::Point<Pixels>,
6425 line_y: Pixels,
6426 row: DisplayRow,
6427 line_height: Pixels,
6428 whitespace_setting: ShowWhitespaceSetting,
6429 window: &mut Window,
6430 cx: &mut App,
6431 ) {
6432 let extract_whitespace_info = |invisible: &Invisible| {
6433 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6434 Invisible::Tab {
6435 line_start_offset,
6436 line_end_offset,
6437 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6438 Invisible::Whitespace { line_offset } => {
6439 (*line_offset, line_offset + 1, &layout.space_invisible)
6440 }
6441 };
6442
6443 let x_offset = self.x_for_index(token_offset);
6444 let invisible_offset =
6445 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6446 let origin = content_origin
6447 + gpui::point(
6448 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6449 line_y,
6450 );
6451
6452 (
6453 [token_offset, token_end_offset],
6454 Box::new(move |window: &mut Window, cx: &mut App| {
6455 invisible_symbol
6456 .paint(origin, line_height, window, cx)
6457 .log_err();
6458 }),
6459 )
6460 };
6461
6462 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6463 match whitespace_setting {
6464 ShowWhitespaceSetting::None => (),
6465 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6466 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6467 let invisible_point = DisplayPoint::new(row, start as u32);
6468 if !selection_ranges
6469 .iter()
6470 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6471 {
6472 return;
6473 }
6474
6475 paint(window, cx);
6476 }),
6477
6478 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6479 // - It is a tab
6480 // - It is adjacent to an edge (start or end)
6481 // - It is adjacent to a whitespace (left or right)
6482 ShowWhitespaceSetting::Boundary => {
6483 // 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
6484 // the above cases.
6485 // Note: We zip in the original `invisibles` to check for tab equality
6486 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6487 for (([start, end], paint), invisible) in
6488 invisible_iter.zip_eq(self.invisibles.iter())
6489 {
6490 let should_render = match (&last_seen, invisible) {
6491 (_, Invisible::Tab { .. }) => true,
6492 (Some((_, last_end, _)), _) => *last_end == start,
6493 _ => false,
6494 };
6495
6496 if should_render || start == 0 || end == self.len {
6497 paint(window, cx);
6498
6499 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6500 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6501 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6502 // Note that we need to make sure that the last one is actually adjacent
6503 if !should_render_last && last_end == start {
6504 paint_last(window, cx);
6505 }
6506 }
6507 }
6508
6509 // Manually render anything within a selection
6510 let invisible_point = DisplayPoint::new(row, start as u32);
6511 if selection_ranges.iter().any(|region| {
6512 region.start <= invisible_point && invisible_point < region.end
6513 }) {
6514 paint(window, cx);
6515 }
6516
6517 last_seen = Some((should_render, end, paint));
6518 }
6519 }
6520 }
6521 }
6522
6523 pub fn x_for_index(&self, index: usize) -> Pixels {
6524 let mut fragment_start_x = Pixels::ZERO;
6525 let mut fragment_start_index = 0;
6526
6527 for fragment in &self.fragments {
6528 match fragment {
6529 LineFragment::Text(shaped_line) => {
6530 let fragment_end_index = fragment_start_index + shaped_line.len;
6531 if index < fragment_end_index {
6532 return fragment_start_x
6533 + shaped_line.x_for_index(index - fragment_start_index);
6534 }
6535 fragment_start_x += shaped_line.width;
6536 fragment_start_index = fragment_end_index;
6537 }
6538 LineFragment::Element { len, size, .. } => {
6539 let fragment_end_index = fragment_start_index + len;
6540 if index < fragment_end_index {
6541 return fragment_start_x;
6542 }
6543 fragment_start_x += size.width;
6544 fragment_start_index = fragment_end_index;
6545 }
6546 }
6547 }
6548
6549 fragment_start_x
6550 }
6551
6552 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6553 let mut fragment_start_x = Pixels::ZERO;
6554 let mut fragment_start_index = 0;
6555
6556 for fragment in &self.fragments {
6557 match fragment {
6558 LineFragment::Text(shaped_line) => {
6559 let fragment_end_x = fragment_start_x + shaped_line.width;
6560 if x < fragment_end_x {
6561 return Some(
6562 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6563 );
6564 }
6565 fragment_start_x = fragment_end_x;
6566 fragment_start_index += shaped_line.len;
6567 }
6568 LineFragment::Element { len, size, .. } => {
6569 let fragment_end_x = fragment_start_x + size.width;
6570 if x < fragment_end_x {
6571 return Some(fragment_start_index);
6572 }
6573 fragment_start_index += len;
6574 fragment_start_x = fragment_end_x;
6575 }
6576 }
6577 }
6578
6579 None
6580 }
6581
6582 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6583 let mut fragment_start_index = 0;
6584
6585 for fragment in &self.fragments {
6586 match fragment {
6587 LineFragment::Text(shaped_line) => {
6588 let fragment_end_index = fragment_start_index + shaped_line.len;
6589 if index < fragment_end_index {
6590 return shaped_line.font_id_for_index(index - fragment_start_index);
6591 }
6592 fragment_start_index = fragment_end_index;
6593 }
6594 LineFragment::Element { len, .. } => {
6595 let fragment_end_index = fragment_start_index + len;
6596 if index < fragment_end_index {
6597 return None;
6598 }
6599 fragment_start_index = fragment_end_index;
6600 }
6601 }
6602 }
6603
6604 None
6605 }
6606}
6607
6608#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6609enum Invisible {
6610 /// A tab character
6611 ///
6612 /// A tab character is internally represented by spaces (configured by the user's tab width)
6613 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6614 /// adjacency checks.
6615 Tab {
6616 line_start_offset: usize,
6617 line_end_offset: usize,
6618 },
6619 Whitespace {
6620 line_offset: usize,
6621 },
6622}
6623
6624impl EditorElement {
6625 /// Returns the rem size to use when rendering the [`EditorElement`].
6626 ///
6627 /// This allows UI elements to scale based on the `buffer_font_size`.
6628 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6629 match self.editor.read(cx).mode {
6630 EditorMode::Full => {
6631 let buffer_font_size = self.style.text.font_size;
6632 match buffer_font_size {
6633 AbsoluteLength::Pixels(pixels) => {
6634 let rem_size_scale = {
6635 // Our default UI font size is 14px on a 16px base scale.
6636 // This means the default UI font size is 0.875rems.
6637 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6638
6639 // We then determine the delta between a single rem and the default font
6640 // size scale.
6641 let default_font_size_delta = 1. - default_font_size_scale;
6642
6643 // Finally, we add this delta to 1rem to get the scale factor that
6644 // should be used to scale up the UI.
6645 1. + default_font_size_delta
6646 };
6647
6648 Some(pixels * rem_size_scale)
6649 }
6650 AbsoluteLength::Rems(rems) => {
6651 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6652 }
6653 }
6654 }
6655 // We currently use single-line and auto-height editors in UI contexts,
6656 // so we don't want to scale everything with the buffer font size, as it
6657 // ends up looking off.
6658 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6659 }
6660 }
6661}
6662
6663impl Element for EditorElement {
6664 type RequestLayoutState = ();
6665 type PrepaintState = EditorLayout;
6666
6667 fn id(&self) -> Option<ElementId> {
6668 None
6669 }
6670
6671 fn request_layout(
6672 &mut self,
6673 _: Option<&GlobalElementId>,
6674 window: &mut Window,
6675 cx: &mut App,
6676 ) -> (gpui::LayoutId, ()) {
6677 let rem_size = self.rem_size(cx);
6678 window.with_rem_size(rem_size, |window| {
6679 self.editor.update(cx, |editor, cx| {
6680 editor.set_style(self.style.clone(), window, cx);
6681
6682 let layout_id = match editor.mode {
6683 EditorMode::SingleLine { auto_width } => {
6684 let rem_size = window.rem_size();
6685
6686 let height = self.style.text.line_height_in_pixels(rem_size);
6687 if auto_width {
6688 let editor_handle = cx.entity().clone();
6689 let style = self.style.clone();
6690 window.request_measured_layout(
6691 Style::default(),
6692 move |_, _, window, cx| {
6693 let editor_snapshot = editor_handle
6694 .update(cx, |editor, cx| editor.snapshot(window, cx));
6695 let line = Self::layout_lines(
6696 DisplayRow(0)..DisplayRow(1),
6697 &editor_snapshot,
6698 &style,
6699 px(f32::MAX),
6700 |_| false, // Single lines never soft wrap
6701 window,
6702 cx,
6703 )
6704 .pop()
6705 .unwrap();
6706
6707 let font_id =
6708 window.text_system().resolve_font(&style.text.font());
6709 let font_size =
6710 style.text.font_size.to_pixels(window.rem_size());
6711 let em_width =
6712 window.text_system().em_width(font_id, font_size).unwrap();
6713
6714 size(line.width + em_width, height)
6715 },
6716 )
6717 } else {
6718 let mut style = Style::default();
6719 style.size.height = height.into();
6720 style.size.width = relative(1.).into();
6721 window.request_layout(style, None, cx)
6722 }
6723 }
6724 EditorMode::AutoHeight { max_lines } => {
6725 let editor_handle = cx.entity().clone();
6726 let max_line_number_width =
6727 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6728 window.request_measured_layout(
6729 Style::default(),
6730 move |known_dimensions, available_space, window, cx| {
6731 editor_handle
6732 .update(cx, |editor, cx| {
6733 compute_auto_height_layout(
6734 editor,
6735 max_lines,
6736 max_line_number_width,
6737 known_dimensions,
6738 available_space.width,
6739 window,
6740 cx,
6741 )
6742 })
6743 .unwrap_or_default()
6744 },
6745 )
6746 }
6747 EditorMode::Full => {
6748 let mut style = Style::default();
6749 style.size.width = relative(1.).into();
6750 style.size.height = relative(1.).into();
6751 window.request_layout(style, None, cx)
6752 }
6753 };
6754
6755 (layout_id, ())
6756 })
6757 })
6758 }
6759
6760 fn prepaint(
6761 &mut self,
6762 _: Option<&GlobalElementId>,
6763 bounds: Bounds<Pixels>,
6764 _: &mut Self::RequestLayoutState,
6765 window: &mut Window,
6766 cx: &mut App,
6767 ) -> Self::PrepaintState {
6768 let text_style = TextStyleRefinement {
6769 font_size: Some(self.style.text.font_size),
6770 line_height: Some(self.style.text.line_height),
6771 ..Default::default()
6772 };
6773 let focus_handle = self.editor.focus_handle(cx);
6774 window.set_view_id(self.editor.entity_id());
6775 window.set_focus_handle(&focus_handle, cx);
6776
6777 let rem_size = self.rem_size(cx);
6778 window.with_rem_size(rem_size, |window| {
6779 window.with_text_style(Some(text_style), |window| {
6780 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6781 let mut snapshot = self
6782 .editor
6783 .update(cx, |editor, cx| editor.snapshot(window, cx));
6784 let style = self.style.clone();
6785
6786 let font_id = window.text_system().resolve_font(&style.text.font());
6787 let font_size = style.text.font_size.to_pixels(window.rem_size());
6788 let line_height = style.text.line_height_in_pixels(window.rem_size());
6789 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6790 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6791
6792 let letter_size = size(em_width, line_height);
6793
6794 let gutter_dimensions = snapshot
6795 .gutter_dimensions(
6796 font_id,
6797 font_size,
6798 self.max_line_number_width(&snapshot, window, cx),
6799 cx,
6800 )
6801 .unwrap_or_default();
6802 let text_width = bounds.size.width - gutter_dimensions.width;
6803
6804 let editor_width = text_width - gutter_dimensions.margin - em_width;
6805
6806 snapshot = self.editor.update(cx, |editor, cx| {
6807 editor.last_bounds = Some(bounds);
6808 editor.gutter_dimensions = gutter_dimensions;
6809 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6810
6811 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6812 snapshot
6813 } else {
6814 let wrap_width = match editor.soft_wrap_mode(cx) {
6815 SoftWrap::GitDiff => None,
6816 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6817 SoftWrap::EditorWidth => Some(editor_width),
6818 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6819 SoftWrap::Bounded(column) => {
6820 Some(editor_width.min(column as f32 * em_advance))
6821 }
6822 };
6823
6824 if editor.set_wrap_width(wrap_width, cx) {
6825 editor.snapshot(window, cx)
6826 } else {
6827 snapshot
6828 }
6829 }
6830 });
6831
6832 let wrap_guides = self
6833 .editor
6834 .read(cx)
6835 .wrap_guides(cx)
6836 .iter()
6837 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6838 .collect::<SmallVec<[_; 2]>>();
6839
6840 let hitbox = window.insert_hitbox(bounds, false);
6841 let gutter_hitbox =
6842 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6843 let text_hitbox = window.insert_hitbox(
6844 Bounds {
6845 origin: gutter_hitbox.top_right(),
6846 size: size(text_width, bounds.size.height),
6847 },
6848 false,
6849 );
6850 // Offset the content_bounds from the text_bounds by the gutter margin (which
6851 // is roughly half a character wide) to make hit testing work more like how we want.
6852 let content_origin =
6853 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6854
6855 let scrollbar_bounds =
6856 Bounds::from_corners(content_origin, bounds.bottom_right());
6857
6858 let height_in_lines = scrollbar_bounds.size.height / line_height;
6859
6860 // NOTE: The max row number in the current file, minus one
6861 let max_row = snapshot.max_point().row().as_f32();
6862
6863 // NOTE: The max scroll position for the top of the window
6864 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6865 (max_row - height_in_lines + 1.).max(0.)
6866 } else {
6867 let settings = EditorSettings::get_global(cx);
6868 match settings.scroll_beyond_last_line {
6869 ScrollBeyondLastLine::OnePage => max_row,
6870 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6871 ScrollBeyondLastLine::VerticalScrollMargin => {
6872 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6873 .max(0.)
6874 }
6875 }
6876 };
6877
6878 // TODO: Autoscrolling for both axes
6879 let mut autoscroll_request = None;
6880 let mut autoscroll_containing_element = false;
6881 let mut autoscroll_horizontally = false;
6882 self.editor.update(cx, |editor, cx| {
6883 autoscroll_request = editor.autoscroll_request();
6884 autoscroll_containing_element =
6885 autoscroll_request.is_some() || editor.has_pending_selection();
6886 // TODO: Is this horizontal or vertical?!
6887 autoscroll_horizontally = editor.autoscroll_vertically(
6888 bounds,
6889 line_height,
6890 max_scroll_top,
6891 window,
6892 cx,
6893 );
6894 snapshot = editor.snapshot(window, cx);
6895 });
6896
6897 let mut scroll_position = snapshot.scroll_position();
6898 // The scroll position is a fractional point, the whole number of which represents
6899 // the top of the window in terms of display rows.
6900 let start_row = DisplayRow(scroll_position.y as u32);
6901 let max_row = snapshot.max_point().row();
6902 let end_row = cmp::min(
6903 (scroll_position.y + height_in_lines).ceil() as u32,
6904 max_row.next_row().0,
6905 );
6906 let end_row = DisplayRow(end_row);
6907
6908 let row_infos = snapshot
6909 .row_infos(start_row)
6910 .take((start_row..end_row).len())
6911 .collect::<Vec<RowInfo>>();
6912 let is_row_soft_wrapped = |row: usize| {
6913 row_infos
6914 .get(row)
6915 .map_or(true, |info| info.buffer_row.is_none())
6916 };
6917
6918 let start_anchor = if start_row == Default::default() {
6919 Anchor::min()
6920 } else {
6921 snapshot.buffer_snapshot.anchor_before(
6922 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6923 )
6924 };
6925 let end_anchor = if end_row > max_row {
6926 Anchor::max()
6927 } else {
6928 snapshot.buffer_snapshot.anchor_before(
6929 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6930 )
6931 };
6932
6933 let mut highlighted_rows = self
6934 .editor
6935 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6936
6937 for (ix, row_info) in row_infos.iter().enumerate() {
6938 let color = match row_info.diff_status {
6939 Some(DiffHunkStatus::Added) => style.status.created_background,
6940 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6941 _ => continue,
6942 };
6943 highlighted_rows
6944 .entry(start_row + DisplayRow(ix as u32))
6945 .or_insert(color);
6946 }
6947
6948 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6949 start_anchor..end_anchor,
6950 &snapshot.display_snapshot,
6951 cx.theme().colors(),
6952 );
6953 let highlighted_gutter_ranges =
6954 self.editor.read(cx).gutter_highlights_in_range(
6955 start_anchor..end_anchor,
6956 &snapshot.display_snapshot,
6957 cx,
6958 );
6959
6960 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6961 start_anchor..end_anchor,
6962 &snapshot.display_snapshot,
6963 cx,
6964 );
6965
6966 let (local_selections, selected_buffer_ids): (
6967 Vec<Selection<Point>>,
6968 Vec<BufferId>,
6969 ) = self.editor.update(cx, |editor, cx| {
6970 let all_selections = editor.selections.all::<Point>(cx);
6971 let selected_buffer_ids = if editor.is_singleton(cx) {
6972 Vec::new()
6973 } else {
6974 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6975
6976 for selection in all_selections {
6977 for buffer_id in snapshot
6978 .buffer_snapshot
6979 .buffer_ids_for_range(selection.range())
6980 {
6981 if selected_buffer_ids.last() != Some(&buffer_id) {
6982 selected_buffer_ids.push(buffer_id);
6983 }
6984 }
6985 }
6986
6987 selected_buffer_ids
6988 };
6989
6990 let mut selections = editor
6991 .selections
6992 .disjoint_in_range(start_anchor..end_anchor, cx);
6993 selections.extend(editor.selections.pending(cx));
6994
6995 (selections, selected_buffer_ids)
6996 });
6997
6998 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6999 start_anchor,
7000 end_anchor,
7001 &local_selections,
7002 &snapshot,
7003 start_row,
7004 end_row,
7005 window,
7006 cx,
7007 );
7008
7009 let line_numbers = self.layout_line_numbers(
7010 Some(&gutter_hitbox),
7011 gutter_dimensions,
7012 line_height,
7013 scroll_position,
7014 start_row..end_row,
7015 &row_infos,
7016 newest_selection_head,
7017 &snapshot,
7018 window,
7019 cx,
7020 );
7021
7022 let mut crease_toggles =
7023 window.with_element_namespace("crease_toggles", |window| {
7024 self.layout_crease_toggles(
7025 start_row..end_row,
7026 &row_infos,
7027 &active_rows,
7028 &snapshot,
7029 window,
7030 cx,
7031 )
7032 });
7033 let crease_trailers =
7034 window.with_element_namespace("crease_trailers", |window| {
7035 self.layout_crease_trailers(
7036 row_infos.iter().copied(),
7037 &snapshot,
7038 window,
7039 cx,
7040 )
7041 });
7042
7043 let display_hunks = self.layout_gutter_diff_hunks(
7044 line_height,
7045 &gutter_hitbox,
7046 start_row..end_row,
7047 &snapshot,
7048 window,
7049 cx,
7050 );
7051
7052 let mut line_layouts = Self::layout_lines(
7053 start_row..end_row,
7054 &snapshot,
7055 &self.style,
7056 editor_width,
7057 is_row_soft_wrapped,
7058 window,
7059 cx,
7060 );
7061
7062 let longest_line_blame_width = self
7063 .editor
7064 .update(cx, |editor, cx| {
7065 if !editor.show_git_blame_inline {
7066 return None;
7067 }
7068 let blame = editor.blame.as_ref()?;
7069 let blame_entry = blame
7070 .update(cx, |blame, cx| {
7071 let row_infos =
7072 snapshot.row_infos(snapshot.longest_row()).next()?;
7073 blame.blame_for_rows(&[row_infos], cx).next()
7074 })
7075 .flatten()?;
7076 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7077 let mut element = render_inline_blame_entry(
7078 blame,
7079 blame_entry,
7080 &style,
7081 workspace,
7082 cx,
7083 );
7084 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7085 Some(
7086 element
7087 .layout_as_root(AvailableSpace::min_size(), window, cx)
7088 .width
7089 + inline_blame_padding,
7090 )
7091 })
7092 .unwrap_or(Pixels::ZERO);
7093
7094 let longest_line_width = layout_line(
7095 snapshot.longest_row(),
7096 &snapshot,
7097 &style,
7098 editor_width,
7099 is_row_soft_wrapped,
7100 window,
7101 cx,
7102 )
7103 .width;
7104
7105 let scrollbar_range_data = ScrollbarRangeData::new(
7106 scrollbar_bounds,
7107 letter_size,
7108 &snapshot,
7109 longest_line_width,
7110 longest_line_blame_width,
7111 &style,
7112 cx,
7113 );
7114
7115 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7116 let mut scroll_width = scroll_range_bounds.size.width;
7117
7118 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7119 snapshot.sticky_header_excerpt(start_row)
7120 } else {
7121 None
7122 };
7123 let sticky_header_excerpt_id =
7124 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7125
7126 let blocks = window.with_element_namespace("blocks", |window| {
7127 self.render_blocks(
7128 start_row..end_row,
7129 &snapshot,
7130 &hitbox,
7131 &text_hitbox,
7132 editor_width,
7133 &mut scroll_width,
7134 &gutter_dimensions,
7135 em_width,
7136 gutter_dimensions.full_width(),
7137 line_height,
7138 &line_layouts,
7139 &local_selections,
7140 &selected_buffer_ids,
7141 is_row_soft_wrapped,
7142 sticky_header_excerpt_id,
7143 window,
7144 cx,
7145 )
7146 });
7147 let mut blocks = match blocks {
7148 Ok(blocks) => blocks,
7149 Err(resized_blocks) => {
7150 self.editor.update(cx, |editor, cx| {
7151 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7152 });
7153 return self.prepaint(None, bounds, &mut (), window, cx);
7154 }
7155 };
7156
7157 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7158 window.with_element_namespace("blocks", |window| {
7159 self.layout_sticky_buffer_header(
7160 sticky_header_excerpt,
7161 scroll_position.y,
7162 line_height,
7163 &snapshot,
7164 &hitbox,
7165 &selected_buffer_ids,
7166 window,
7167 cx,
7168 )
7169 })
7170 });
7171
7172 let start_buffer_row =
7173 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7174 let end_buffer_row =
7175 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7176
7177 let scroll_max = point(
7178 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7179 max_row.as_f32(),
7180 );
7181
7182 self.editor.update(cx, |editor, cx| {
7183 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7184
7185 let autoscrolled = if autoscroll_horizontally {
7186 editor.autoscroll_horizontally(
7187 start_row,
7188 editor_width - (letter_size.width / 2.0),
7189 scroll_width,
7190 em_width,
7191 &line_layouts,
7192 cx,
7193 )
7194 } else {
7195 false
7196 };
7197
7198 if clamped || autoscrolled {
7199 snapshot = editor.snapshot(window, cx);
7200 scroll_position = snapshot.scroll_position();
7201 }
7202 });
7203
7204 let scroll_pixel_position = point(
7205 scroll_position.x * em_width,
7206 scroll_position.y * line_height,
7207 );
7208
7209 let indent_guides = self.layout_indent_guides(
7210 content_origin,
7211 text_hitbox.origin,
7212 start_buffer_row..end_buffer_row,
7213 scroll_pixel_position,
7214 line_height,
7215 &snapshot,
7216 window,
7217 cx,
7218 );
7219
7220 let crease_trailers =
7221 window.with_element_namespace("crease_trailers", |window| {
7222 self.prepaint_crease_trailers(
7223 crease_trailers,
7224 &line_layouts,
7225 line_height,
7226 content_origin,
7227 scroll_pixel_position,
7228 em_width,
7229 window,
7230 cx,
7231 )
7232 });
7233
7234 let mut inline_blame = None;
7235 if let Some(newest_selection_head) = newest_selection_head {
7236 let display_row = newest_selection_head.row();
7237 if (start_row..end_row).contains(&display_row) {
7238 let line_ix = display_row.minus(start_row) as usize;
7239 let row_info = &row_infos[line_ix];
7240 let line_layout = &line_layouts[line_ix];
7241 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7242 inline_blame = self.layout_inline_blame(
7243 display_row,
7244 row_info,
7245 line_layout,
7246 crease_trailer_layout,
7247 em_width,
7248 content_origin,
7249 scroll_pixel_position,
7250 line_height,
7251 window,
7252 cx,
7253 );
7254 }
7255 }
7256
7257 let blamed_display_rows = self.layout_blame_entries(
7258 &row_infos,
7259 em_width,
7260 scroll_position,
7261 line_height,
7262 &gutter_hitbox,
7263 gutter_dimensions.git_blame_entries_width,
7264 window,
7265 cx,
7266 );
7267
7268 let scroll_max = point(
7269 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7270 max_scroll_top,
7271 );
7272
7273 self.editor.update(cx, |editor, cx| {
7274 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7275
7276 let autoscrolled = if autoscroll_horizontally {
7277 editor.autoscroll_horizontally(
7278 start_row,
7279 editor_width - (letter_size.width / 2.0),
7280 scroll_width,
7281 em_width,
7282 &line_layouts,
7283 cx,
7284 )
7285 } else {
7286 false
7287 };
7288
7289 if clamped || autoscrolled {
7290 snapshot = editor.snapshot(window, cx);
7291 scroll_position = snapshot.scroll_position();
7292 }
7293 });
7294
7295 let line_elements = self.prepaint_lines(
7296 start_row,
7297 &mut line_layouts,
7298 line_height,
7299 scroll_pixel_position,
7300 content_origin,
7301 window,
7302 cx,
7303 );
7304
7305 let mut block_start_rows = HashSet::default();
7306
7307 window.with_element_namespace("blocks", |window| {
7308 self.layout_blocks(
7309 &mut blocks,
7310 &mut block_start_rows,
7311 &hitbox,
7312 line_height,
7313 scroll_pixel_position,
7314 window,
7315 cx,
7316 );
7317 });
7318
7319 let cursors = self.collect_cursors(&snapshot, cx);
7320 let visible_row_range = start_row..end_row;
7321 let non_visible_cursors = cursors
7322 .iter()
7323 .any(move |c| !visible_row_range.contains(&c.0.row()));
7324
7325 let visible_cursors = self.layout_visible_cursors(
7326 &snapshot,
7327 &selections,
7328 &block_start_rows,
7329 start_row..end_row,
7330 &line_layouts,
7331 &text_hitbox,
7332 content_origin,
7333 scroll_position,
7334 scroll_pixel_position,
7335 line_height,
7336 em_width,
7337 em_advance,
7338 autoscroll_containing_element,
7339 window,
7340 cx,
7341 );
7342
7343 let scrollbars_layout = self.layout_scrollbars(
7344 &snapshot,
7345 scrollbar_range_data,
7346 scroll_position,
7347 non_visible_cursors,
7348 window,
7349 cx,
7350 );
7351
7352 let gutter_settings = EditorSettings::get_global(cx).gutter;
7353
7354 let rows_with_hunk_bounds = display_hunks
7355 .iter()
7356 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7357 .fold(
7358 HashMap::default(),
7359 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7360 match hunk {
7361 DisplayDiffHunk::Folded { display_row } => {
7362 rows_with_hunk_bounds.insert(*display_row, bounds);
7363 }
7364 DisplayDiffHunk::Unfolded {
7365 display_row_range, ..
7366 } => {
7367 for display_row in display_row_range.iter_rows() {
7368 rows_with_hunk_bounds.insert(display_row, bounds);
7369 }
7370 }
7371 }
7372 rows_with_hunk_bounds
7373 },
7374 );
7375 let mut code_actions_indicator = None;
7376 if let Some(newest_selection_head) = newest_selection_head {
7377 let newest_selection_point =
7378 newest_selection_head.to_point(&snapshot.display_snapshot);
7379
7380 if (start_row..end_row).contains(&newest_selection_head.row()) {
7381 self.layout_cursor_popovers(
7382 line_height,
7383 &text_hitbox,
7384 content_origin,
7385 start_row,
7386 scroll_pixel_position,
7387 &line_layouts,
7388 newest_selection_head,
7389 newest_selection_point,
7390 &style,
7391 window,
7392 cx,
7393 );
7394
7395 let show_code_actions = snapshot
7396 .show_code_actions
7397 .unwrap_or(gutter_settings.code_actions);
7398 if show_code_actions {
7399 let newest_selection_point =
7400 newest_selection_head.to_point(&snapshot.display_snapshot);
7401 if !snapshot
7402 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7403 {
7404 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7405 MultiBufferRow(newest_selection_point.row),
7406 );
7407 if let Some((buffer, range)) = buffer {
7408 let buffer_id = buffer.remote_id();
7409 let row = range.start.row;
7410 let has_test_indicator = self
7411 .editor
7412 .read(cx)
7413 .tasks
7414 .contains_key(&(buffer_id, row));
7415
7416 if !has_test_indicator {
7417 code_actions_indicator = self
7418 .layout_code_actions_indicator(
7419 line_height,
7420 newest_selection_head,
7421 scroll_pixel_position,
7422 &gutter_dimensions,
7423 &gutter_hitbox,
7424 &rows_with_hunk_bounds,
7425 window,
7426 cx,
7427 );
7428 }
7429 }
7430 }
7431 }
7432 }
7433 }
7434
7435 self.layout_gutter_menu(
7436 line_height,
7437 &text_hitbox,
7438 content_origin,
7439 scroll_pixel_position,
7440 gutter_dimensions.width - gutter_dimensions.left_padding,
7441 window,
7442 cx,
7443 );
7444
7445 let test_indicators = if gutter_settings.runnables {
7446 self.layout_run_indicators(
7447 line_height,
7448 start_row..end_row,
7449 scroll_pixel_position,
7450 &gutter_dimensions,
7451 &gutter_hitbox,
7452 &rows_with_hunk_bounds,
7453 &snapshot,
7454 window,
7455 cx,
7456 )
7457 } else {
7458 Vec::new()
7459 };
7460
7461 self.layout_signature_help(
7462 &hitbox,
7463 content_origin,
7464 scroll_pixel_position,
7465 newest_selection_head,
7466 start_row,
7467 &line_layouts,
7468 line_height,
7469 em_width,
7470 window,
7471 cx,
7472 );
7473
7474 if !cx.has_active_drag() {
7475 self.layout_hover_popovers(
7476 &snapshot,
7477 &hitbox,
7478 &text_hitbox,
7479 start_row..end_row,
7480 content_origin,
7481 scroll_pixel_position,
7482 &line_layouts,
7483 line_height,
7484 em_width,
7485 window,
7486 cx,
7487 );
7488 }
7489
7490 let inline_completion_popover = self.layout_inline_completion_popover(
7491 &text_hitbox.bounds,
7492 &snapshot,
7493 start_row..end_row,
7494 scroll_position.y,
7495 scroll_position.y + height_in_lines,
7496 &line_layouts,
7497 line_height,
7498 scroll_pixel_position,
7499 newest_selection_head,
7500 editor_width,
7501 &style,
7502 window,
7503 cx,
7504 );
7505
7506 let mouse_context_menu = self.layout_mouse_context_menu(
7507 &snapshot,
7508 start_row..end_row,
7509 content_origin,
7510 window,
7511 cx,
7512 );
7513
7514 window.with_element_namespace("crease_toggles", |window| {
7515 self.prepaint_crease_toggles(
7516 &mut crease_toggles,
7517 line_height,
7518 &gutter_dimensions,
7519 gutter_settings,
7520 scroll_pixel_position,
7521 &gutter_hitbox,
7522 window,
7523 cx,
7524 )
7525 });
7526
7527 let invisible_symbol_font_size = font_size / 2.;
7528 let tab_invisible = window
7529 .text_system()
7530 .shape_line(
7531 "→".into(),
7532 invisible_symbol_font_size,
7533 &[TextRun {
7534 len: "→".len(),
7535 font: self.style.text.font(),
7536 color: cx.theme().colors().editor_invisible,
7537 background_color: None,
7538 underline: None,
7539 strikethrough: None,
7540 }],
7541 )
7542 .unwrap();
7543 let space_invisible = window
7544 .text_system()
7545 .shape_line(
7546 "•".into(),
7547 invisible_symbol_font_size,
7548 &[TextRun {
7549 len: "•".len(),
7550 font: self.style.text.font(),
7551 color: cx.theme().colors().editor_invisible,
7552 background_color: None,
7553 underline: None,
7554 strikethrough: None,
7555 }],
7556 )
7557 .unwrap();
7558
7559 let mode = snapshot.mode;
7560
7561 let position_map = Rc::new(PositionMap {
7562 size: bounds.size,
7563 scroll_pixel_position,
7564 scroll_max,
7565 line_layouts,
7566 line_height,
7567 em_width,
7568 em_advance,
7569 snapshot,
7570 });
7571
7572 let hunk_controls = self.layout_diff_hunk_controls(
7573 start_row..end_row,
7574 &row_infos,
7575 &text_hitbox,
7576 &position_map,
7577 newest_selection_head,
7578 line_height,
7579 scroll_pixel_position,
7580 &display_hunks,
7581 self.editor.clone(),
7582 window,
7583 cx,
7584 );
7585
7586 EditorLayout {
7587 mode,
7588 position_map,
7589 visible_display_row_range: start_row..end_row,
7590 wrap_guides,
7591 indent_guides,
7592 hitbox,
7593 text_hitbox,
7594 gutter_hitbox,
7595 display_hunks,
7596 content_origin,
7597 scrollbars_layout,
7598 active_rows,
7599 highlighted_rows,
7600 highlighted_ranges,
7601 highlighted_gutter_ranges,
7602 redacted_ranges,
7603 line_elements,
7604 line_numbers,
7605 blamed_display_rows,
7606 inline_blame,
7607 blocks,
7608 cursors,
7609 visible_cursors,
7610 selections,
7611 inline_completion_popover,
7612 diff_hunk_controls: hunk_controls,
7613 mouse_context_menu,
7614 test_indicators,
7615 code_actions_indicator,
7616 crease_toggles,
7617 crease_trailers,
7618 tab_invisible,
7619 space_invisible,
7620 sticky_buffer_header,
7621 }
7622 })
7623 })
7624 })
7625 }
7626
7627 fn paint(
7628 &mut self,
7629 _: Option<&GlobalElementId>,
7630 bounds: Bounds<gpui::Pixels>,
7631 _: &mut Self::RequestLayoutState,
7632 layout: &mut Self::PrepaintState,
7633 window: &mut Window,
7634 cx: &mut App,
7635 ) {
7636 let focus_handle = self.editor.focus_handle(cx);
7637 let key_context = self
7638 .editor
7639 .update(cx, |editor, cx| editor.key_context(window, cx));
7640
7641 window.set_key_context(key_context);
7642 window.handle_input(
7643 &focus_handle,
7644 ElementInputHandler::new(bounds, self.editor.clone()),
7645 cx,
7646 );
7647 self.register_actions(window, cx);
7648 self.register_key_listeners(window, cx, layout);
7649
7650 let text_style = TextStyleRefinement {
7651 font_size: Some(self.style.text.font_size),
7652 line_height: Some(self.style.text.line_height),
7653 ..Default::default()
7654 };
7655 let rem_size = self.rem_size(cx);
7656 window.with_rem_size(rem_size, |window| {
7657 window.with_text_style(Some(text_style), |window| {
7658 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7659 self.paint_mouse_listeners(layout, window, cx);
7660 self.paint_background(layout, window, cx);
7661 self.paint_indent_guides(layout, window, cx);
7662
7663 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7664 self.paint_blamed_display_rows(layout, window, cx);
7665 self.paint_line_numbers(layout, window, cx);
7666 }
7667
7668 self.paint_text(layout, window, cx);
7669
7670 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7671 self.paint_gutter_highlights(layout, window, cx);
7672 self.paint_gutter_indicators(layout, window, cx);
7673 }
7674
7675 if !layout.blocks.is_empty() {
7676 window.with_element_namespace("blocks", |window| {
7677 self.paint_blocks(layout, window, cx);
7678 });
7679 }
7680
7681 window.with_element_namespace("blocks", |window| {
7682 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7683 sticky_header.paint(window, cx)
7684 }
7685 });
7686
7687 self.paint_scrollbars(layout, window, cx);
7688 self.paint_inline_completion_popover(layout, window, cx);
7689 self.paint_mouse_context_menu(layout, window, cx);
7690 });
7691 })
7692 })
7693 }
7694}
7695
7696pub(super) fn gutter_bounds(
7697 editor_bounds: Bounds<Pixels>,
7698 gutter_dimensions: GutterDimensions,
7699) -> Bounds<Pixels> {
7700 Bounds {
7701 origin: editor_bounds.origin,
7702 size: size(gutter_dimensions.width, editor_bounds.size.height),
7703 }
7704}
7705
7706struct ScrollbarRangeData {
7707 scrollbar_bounds: Bounds<Pixels>,
7708 scroll_range: Bounds<Pixels>,
7709 letter_size: Size<Pixels>,
7710}
7711
7712impl ScrollbarRangeData {
7713 pub fn new(
7714 scrollbar_bounds: Bounds<Pixels>,
7715 letter_size: Size<Pixels>,
7716 snapshot: &EditorSnapshot,
7717 longest_line_width: Pixels,
7718 longest_line_blame_width: Pixels,
7719 style: &EditorStyle,
7720
7721 cx: &mut App,
7722 ) -> ScrollbarRangeData {
7723 // TODO: Simplify this function down, it requires a lot of parameters
7724 let max_row = snapshot.max_point().row();
7725 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7726
7727 let scrollbar_width = style.scrollbar_width;
7728
7729 let settings = EditorSettings::get_global(cx);
7730 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7731 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7732 ScrollBeyondLastLine::Off => px(1.),
7733 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7734 };
7735
7736 let overscroll = size(
7737 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7738 letter_size.height * scroll_beyond_last_line,
7739 );
7740
7741 let scroll_range = Bounds {
7742 origin: scrollbar_bounds.origin,
7743 size: text_bounds_size + overscroll,
7744 };
7745
7746 ScrollbarRangeData {
7747 scrollbar_bounds,
7748 scroll_range,
7749 letter_size,
7750 }
7751 }
7752}
7753
7754impl IntoElement for EditorElement {
7755 type Element = Self;
7756
7757 fn into_element(self) -> Self::Element {
7758 self
7759 }
7760}
7761
7762pub struct EditorLayout {
7763 position_map: Rc<PositionMap>,
7764 hitbox: Hitbox,
7765 text_hitbox: Hitbox,
7766 gutter_hitbox: Hitbox,
7767 content_origin: gpui::Point<Pixels>,
7768 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7769 mode: EditorMode,
7770 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7771 indent_guides: Option<Vec<IndentGuideLayout>>,
7772 visible_display_row_range: Range<DisplayRow>,
7773 active_rows: BTreeMap<DisplayRow, bool>,
7774 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7775 line_elements: SmallVec<[AnyElement; 1]>,
7776 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7777 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7778 blamed_display_rows: Option<Vec<AnyElement>>,
7779 inline_blame: Option<AnyElement>,
7780 blocks: Vec<BlockLayout>,
7781 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7782 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7783 redacted_ranges: Vec<Range<DisplayPoint>>,
7784 cursors: Vec<(DisplayPoint, Hsla)>,
7785 visible_cursors: Vec<CursorLayout>,
7786 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7787 code_actions_indicator: Option<AnyElement>,
7788 test_indicators: Vec<AnyElement>,
7789 crease_toggles: Vec<Option<AnyElement>>,
7790 diff_hunk_controls: Vec<AnyElement>,
7791 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7792 inline_completion_popover: Option<AnyElement>,
7793 mouse_context_menu: Option<AnyElement>,
7794 tab_invisible: ShapedLine,
7795 space_invisible: ShapedLine,
7796 sticky_buffer_header: Option<AnyElement>,
7797}
7798
7799impl EditorLayout {
7800 fn line_end_overshoot(&self) -> Pixels {
7801 0.15 * self.position_map.line_height
7802 }
7803}
7804
7805struct LineNumberLayout {
7806 shaped_line: ShapedLine,
7807 hitbox: Option<Hitbox>,
7808 display_row: DisplayRow,
7809}
7810
7811struct ColoredRange<T> {
7812 start: T,
7813 end: T,
7814 color: Hsla,
7815}
7816
7817#[derive(Clone)]
7818struct ScrollbarLayout {
7819 hitbox: Hitbox,
7820 visible_range: Range<f32>,
7821 visible: bool,
7822 text_unit_size: Pixels,
7823 thumb_size: Pixels,
7824 axis: Axis,
7825}
7826
7827impl ScrollbarLayout {
7828 const BORDER_WIDTH: Pixels = px(1.0);
7829 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7830 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7831 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7832
7833 fn thumb_bounds(&self) -> Bounds<Pixels> {
7834 match self.axis {
7835 Axis::Vertical => {
7836 let thumb_top = self.y_for_row(self.visible_range.start);
7837 let thumb_bottom = thumb_top + self.thumb_size;
7838 Bounds::from_corners(
7839 point(self.hitbox.left(), thumb_top),
7840 point(self.hitbox.right(), thumb_bottom),
7841 )
7842 }
7843 Axis::Horizontal => {
7844 let thumb_left =
7845 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7846 let thumb_right = thumb_left + self.thumb_size;
7847 Bounds::from_corners(
7848 point(thumb_left, self.hitbox.top()),
7849 point(thumb_right, self.hitbox.bottom()),
7850 )
7851 }
7852 }
7853 }
7854
7855 fn y_for_row(&self, row: f32) -> Pixels {
7856 self.hitbox.top() + row * self.text_unit_size
7857 }
7858
7859 fn marker_quads_for_ranges(
7860 &self,
7861 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7862 column: Option<usize>,
7863 ) -> Vec<PaintQuad> {
7864 struct MinMax {
7865 min: Pixels,
7866 max: Pixels,
7867 }
7868 let (x_range, height_limit) = if let Some(column) = column {
7869 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7870 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7871 let end = start + column_width;
7872 (
7873 Range { start, end },
7874 MinMax {
7875 min: Self::MIN_MARKER_HEIGHT,
7876 max: px(f32::MAX),
7877 },
7878 )
7879 } else {
7880 (
7881 Range {
7882 start: Self::BORDER_WIDTH,
7883 end: self.hitbox.size.width,
7884 },
7885 MinMax {
7886 min: Self::LINE_MARKER_HEIGHT,
7887 max: Self::LINE_MARKER_HEIGHT,
7888 },
7889 )
7890 };
7891
7892 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7893 let mut pixel_ranges = row_ranges
7894 .into_iter()
7895 .map(|range| {
7896 let start_y = row_to_y(range.start);
7897 let end_y = row_to_y(range.end)
7898 + self
7899 .text_unit_size
7900 .max(height_limit.min)
7901 .min(height_limit.max);
7902 ColoredRange {
7903 start: start_y,
7904 end: end_y,
7905 color: range.color,
7906 }
7907 })
7908 .peekable();
7909
7910 let mut quads = Vec::new();
7911 while let Some(mut pixel_range) = pixel_ranges.next() {
7912 while let Some(next_pixel_range) = pixel_ranges.peek() {
7913 if pixel_range.end >= next_pixel_range.start - px(1.0)
7914 && pixel_range.color == next_pixel_range.color
7915 {
7916 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7917 pixel_ranges.next();
7918 } else {
7919 break;
7920 }
7921 }
7922
7923 let bounds = Bounds::from_corners(
7924 point(x_range.start, pixel_range.start),
7925 point(x_range.end, pixel_range.end),
7926 );
7927 quads.push(quad(
7928 bounds,
7929 Corners::default(),
7930 pixel_range.color,
7931 Edges::default(),
7932 Hsla::transparent_black(),
7933 ));
7934 }
7935
7936 quads
7937 }
7938}
7939
7940struct CreaseTrailerLayout {
7941 element: AnyElement,
7942 bounds: Bounds<Pixels>,
7943}
7944
7945struct PositionMap {
7946 size: Size<Pixels>,
7947 line_height: Pixels,
7948 scroll_pixel_position: gpui::Point<Pixels>,
7949 scroll_max: gpui::Point<f32>,
7950 em_width: Pixels,
7951 em_advance: Pixels,
7952 line_layouts: Vec<LineWithInvisibles>,
7953 snapshot: EditorSnapshot,
7954}
7955
7956#[derive(Debug, Copy, Clone)]
7957pub struct PointForPosition {
7958 pub previous_valid: DisplayPoint,
7959 pub next_valid: DisplayPoint,
7960 pub exact_unclipped: DisplayPoint,
7961 pub column_overshoot_after_line_end: u32,
7962}
7963
7964impl PointForPosition {
7965 pub fn as_valid(&self) -> Option<DisplayPoint> {
7966 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7967 Some(self.previous_valid)
7968 } else {
7969 None
7970 }
7971 }
7972}
7973
7974impl PositionMap {
7975 fn point_for_position(
7976 &self,
7977 text_bounds: Bounds<Pixels>,
7978 position: gpui::Point<Pixels>,
7979 ) -> PointForPosition {
7980 let scroll_position = self.snapshot.scroll_position();
7981 let position = position - text_bounds.origin;
7982 let y = position.y.max(px(0.)).min(self.size.height);
7983 let x = position.x + (scroll_position.x * self.em_width);
7984 let row = ((y / self.line_height) + scroll_position.y) as u32;
7985
7986 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7987 .line_layouts
7988 .get(row as usize - scroll_position.y as usize)
7989 {
7990 if let Some(ix) = line.index_for_x(x) {
7991 (ix as u32, px(0.))
7992 } else {
7993 (line.len as u32, px(0.).max(x - line.width))
7994 }
7995 } else {
7996 (0, x)
7997 };
7998
7999 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
8000 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
8001 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
8002
8003 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
8004 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
8005 PointForPosition {
8006 previous_valid,
8007 next_valid,
8008 exact_unclipped,
8009 column_overshoot_after_line_end,
8010 }
8011 }
8012}
8013
8014struct BlockLayout {
8015 id: BlockId,
8016 row: Option<DisplayRow>,
8017 element: AnyElement,
8018 available_space: Size<AvailableSpace>,
8019 style: BlockStyle,
8020}
8021
8022fn layout_line(
8023 row: DisplayRow,
8024 snapshot: &EditorSnapshot,
8025 style: &EditorStyle,
8026 text_width: Pixels,
8027 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
8028 window: &mut Window,
8029 cx: &mut App,
8030) -> LineWithInvisibles {
8031 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
8032 LineWithInvisibles::from_chunks(
8033 chunks,
8034 &style,
8035 MAX_LINE_LEN,
8036 1,
8037 snapshot.mode,
8038 text_width,
8039 is_row_soft_wrapped,
8040 window,
8041 cx,
8042 )
8043 .pop()
8044 .unwrap()
8045}
8046
8047#[derive(Debug)]
8048pub struct IndentGuideLayout {
8049 origin: gpui::Point<Pixels>,
8050 length: Pixels,
8051 single_indent_width: Pixels,
8052 depth: u32,
8053 active: bool,
8054 settings: IndentGuideSettings,
8055}
8056
8057pub struct CursorLayout {
8058 origin: gpui::Point<Pixels>,
8059 block_width: Pixels,
8060 line_height: Pixels,
8061 color: Hsla,
8062 shape: CursorShape,
8063 block_text: Option<ShapedLine>,
8064 cursor_name: Option<AnyElement>,
8065}
8066
8067#[derive(Debug)]
8068pub struct CursorName {
8069 string: SharedString,
8070 color: Hsla,
8071 is_top_row: bool,
8072}
8073
8074impl CursorLayout {
8075 pub fn new(
8076 origin: gpui::Point<Pixels>,
8077 block_width: Pixels,
8078 line_height: Pixels,
8079 color: Hsla,
8080 shape: CursorShape,
8081 block_text: Option<ShapedLine>,
8082 ) -> CursorLayout {
8083 CursorLayout {
8084 origin,
8085 block_width,
8086 line_height,
8087 color,
8088 shape,
8089 block_text,
8090 cursor_name: None,
8091 }
8092 }
8093
8094 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8095 Bounds {
8096 origin: self.origin + origin,
8097 size: size(self.block_width, self.line_height),
8098 }
8099 }
8100
8101 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8102 match self.shape {
8103 CursorShape::Bar => Bounds {
8104 origin: self.origin + origin,
8105 size: size(px(2.0), self.line_height),
8106 },
8107 CursorShape::Block | CursorShape::Hollow => Bounds {
8108 origin: self.origin + origin,
8109 size: size(self.block_width, self.line_height),
8110 },
8111 CursorShape::Underline => Bounds {
8112 origin: self.origin
8113 + origin
8114 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8115 size: size(self.block_width, px(2.0)),
8116 },
8117 }
8118 }
8119
8120 pub fn layout(
8121 &mut self,
8122 origin: gpui::Point<Pixels>,
8123 cursor_name: Option<CursorName>,
8124 window: &mut Window,
8125 cx: &mut App,
8126 ) {
8127 if let Some(cursor_name) = cursor_name {
8128 let bounds = self.bounds(origin);
8129 let text_size = self.line_height / 1.5;
8130
8131 let name_origin = if cursor_name.is_top_row {
8132 point(bounds.right() - px(1.), bounds.top())
8133 } else {
8134 match self.shape {
8135 CursorShape::Bar => point(
8136 bounds.right() - px(2.),
8137 bounds.top() - text_size / 2. - px(1.),
8138 ),
8139 _ => point(
8140 bounds.right() - px(1.),
8141 bounds.top() - text_size / 2. - px(1.),
8142 ),
8143 }
8144 };
8145 let mut name_element = div()
8146 .bg(self.color)
8147 .text_size(text_size)
8148 .px_0p5()
8149 .line_height(text_size + px(2.))
8150 .text_color(cursor_name.color)
8151 .child(cursor_name.string.clone())
8152 .into_any_element();
8153
8154 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8155
8156 self.cursor_name = Some(name_element);
8157 }
8158 }
8159
8160 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8161 let bounds = self.bounds(origin);
8162
8163 //Draw background or border quad
8164 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8165 outline(bounds, self.color)
8166 } else {
8167 fill(bounds, self.color)
8168 };
8169
8170 if let Some(name) = &mut self.cursor_name {
8171 name.paint(window, cx);
8172 }
8173
8174 window.paint_quad(cursor);
8175
8176 if let Some(block_text) = &self.block_text {
8177 block_text
8178 .paint(self.origin + origin, self.line_height, window, cx)
8179 .log_err();
8180 }
8181 }
8182
8183 pub fn shape(&self) -> CursorShape {
8184 self.shape
8185 }
8186}
8187
8188#[derive(Debug)]
8189pub struct HighlightedRange {
8190 pub start_y: Pixels,
8191 pub line_height: Pixels,
8192 pub lines: Vec<HighlightedRangeLine>,
8193 pub color: Hsla,
8194 pub corner_radius: Pixels,
8195}
8196
8197#[derive(Debug)]
8198pub struct HighlightedRangeLine {
8199 pub start_x: Pixels,
8200 pub end_x: Pixels,
8201}
8202
8203impl HighlightedRange {
8204 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8205 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8206 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8207 self.paint_lines(
8208 self.start_y + self.line_height,
8209 &self.lines[1..],
8210 bounds,
8211 window,
8212 );
8213 } else {
8214 self.paint_lines(self.start_y, &self.lines, bounds, window);
8215 }
8216 }
8217
8218 fn paint_lines(
8219 &self,
8220 start_y: Pixels,
8221 lines: &[HighlightedRangeLine],
8222 _bounds: Bounds<Pixels>,
8223 window: &mut Window,
8224 ) {
8225 if lines.is_empty() {
8226 return;
8227 }
8228
8229 let first_line = lines.first().unwrap();
8230 let last_line = lines.last().unwrap();
8231
8232 let first_top_left = point(first_line.start_x, start_y);
8233 let first_top_right = point(first_line.end_x, start_y);
8234
8235 let curve_height = point(Pixels::ZERO, self.corner_radius);
8236 let curve_width = |start_x: Pixels, end_x: Pixels| {
8237 let max = (end_x - start_x) / 2.;
8238 let width = if max < self.corner_radius {
8239 max
8240 } else {
8241 self.corner_radius
8242 };
8243
8244 point(width, Pixels::ZERO)
8245 };
8246
8247 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8248 let mut builder = gpui::PathBuilder::fill();
8249 builder.curve_to(first_top_right + curve_height, first_top_right);
8250
8251 let mut iter = lines.iter().enumerate().peekable();
8252 while let Some((ix, line)) = iter.next() {
8253 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8254
8255 if let Some((_, next_line)) = iter.peek() {
8256 let next_top_right = point(next_line.end_x, bottom_right.y);
8257
8258 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8259 Ordering::Equal => {
8260 builder.line_to(bottom_right);
8261 }
8262 Ordering::Less => {
8263 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8264 builder.line_to(bottom_right - curve_height);
8265 if self.corner_radius > Pixels::ZERO {
8266 builder.curve_to(bottom_right - curve_width, bottom_right);
8267 }
8268 builder.line_to(next_top_right + curve_width);
8269 if self.corner_radius > Pixels::ZERO {
8270 builder.curve_to(next_top_right + curve_height, next_top_right);
8271 }
8272 }
8273 Ordering::Greater => {
8274 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8275 builder.line_to(bottom_right - curve_height);
8276 if self.corner_radius > Pixels::ZERO {
8277 builder.curve_to(bottom_right + curve_width, bottom_right);
8278 }
8279 builder.line_to(next_top_right - curve_width);
8280 if self.corner_radius > Pixels::ZERO {
8281 builder.curve_to(next_top_right + curve_height, next_top_right);
8282 }
8283 }
8284 }
8285 } else {
8286 let curve_width = curve_width(line.start_x, line.end_x);
8287 builder.line_to(bottom_right - curve_height);
8288 if self.corner_radius > Pixels::ZERO {
8289 builder.curve_to(bottom_right - curve_width, bottom_right);
8290 }
8291
8292 let bottom_left = point(line.start_x, bottom_right.y);
8293 builder.line_to(bottom_left + curve_width);
8294 if self.corner_radius > Pixels::ZERO {
8295 builder.curve_to(bottom_left - curve_height, bottom_left);
8296 }
8297 }
8298 }
8299
8300 if first_line.start_x > last_line.start_x {
8301 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8302 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8303 builder.line_to(second_top_left + curve_height);
8304 if self.corner_radius > Pixels::ZERO {
8305 builder.curve_to(second_top_left + curve_width, second_top_left);
8306 }
8307 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8308 builder.line_to(first_bottom_left - curve_width);
8309 if self.corner_radius > Pixels::ZERO {
8310 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8311 }
8312 }
8313
8314 builder.line_to(first_top_left + curve_height);
8315 if self.corner_radius > Pixels::ZERO {
8316 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8317 }
8318 builder.line_to(first_top_right - top_curve_width);
8319
8320 if let Ok(path) = builder.build() {
8321 window.paint_path(path, self.color);
8322 }
8323 }
8324}
8325
8326enum CursorPopoverType {
8327 CodeContextMenu,
8328 EditPrediction,
8329}
8330
8331pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8332 (delta.pow(1.5) / 100.0).into()
8333}
8334
8335fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8336 (delta.pow(1.2) / 300.0).into()
8337}
8338
8339pub fn register_action<T: Action>(
8340 editor: &Entity<Editor>,
8341 window: &mut Window,
8342 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8343) {
8344 let editor = editor.clone();
8345 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8346 let action = action.downcast_ref().unwrap();
8347 if phase == DispatchPhase::Bubble {
8348 editor.update(cx, |editor, cx| {
8349 listener(editor, action, window, cx);
8350 })
8351 }
8352 })
8353}
8354
8355fn compute_auto_height_layout(
8356 editor: &mut Editor,
8357 max_lines: usize,
8358 max_line_number_width: Pixels,
8359 known_dimensions: Size<Option<Pixels>>,
8360 available_width: AvailableSpace,
8361 window: &mut Window,
8362 cx: &mut Context<Editor>,
8363) -> Option<Size<Pixels>> {
8364 let width = known_dimensions.width.or({
8365 if let AvailableSpace::Definite(available_width) = available_width {
8366 Some(available_width)
8367 } else {
8368 None
8369 }
8370 })?;
8371 if let Some(height) = known_dimensions.height {
8372 return Some(size(width, height));
8373 }
8374
8375 let style = editor.style.as_ref().unwrap();
8376 let font_id = window.text_system().resolve_font(&style.text.font());
8377 let font_size = style.text.font_size.to_pixels(window.rem_size());
8378 let line_height = style.text.line_height_in_pixels(window.rem_size());
8379 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8380
8381 let mut snapshot = editor.snapshot(window, cx);
8382 let gutter_dimensions = snapshot
8383 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8384 .unwrap_or_default();
8385
8386 editor.gutter_dimensions = gutter_dimensions;
8387 let text_width = width - gutter_dimensions.width;
8388 let overscroll = size(em_width, px(0.));
8389
8390 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8391 if editor.set_wrap_width(Some(editor_width), cx) {
8392 snapshot = editor.snapshot(window, cx);
8393 }
8394
8395 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8396 let height = scroll_height
8397 .max(line_height)
8398 .min(line_height * max_lines as f32);
8399
8400 Some(size(width, height))
8401}
8402
8403#[cfg(test)]
8404mod tests {
8405 use super::*;
8406 use crate::{
8407 display_map::{BlockPlacement, BlockProperties},
8408 editor_tests::{init_test, update_test_language_settings},
8409 Editor, MultiBuffer,
8410 };
8411 use gpui::{TestAppContext, VisualTestContext};
8412 use language::language_settings;
8413 use log::info;
8414 use similar::DiffableStr;
8415 use std::num::NonZeroU32;
8416 use util::test::sample_text;
8417
8418 #[gpui::test]
8419 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8420 init_test(cx, |_| {});
8421 let window = cx.add_window(|window, cx| {
8422 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8423 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8424 });
8425
8426 let editor = window.root(cx).unwrap();
8427 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8428 let line_height = window
8429 .update(cx, |_, window, _| {
8430 style.text.line_height_in_pixels(window.rem_size())
8431 })
8432 .unwrap();
8433 let element = EditorElement::new(&editor, style);
8434 let snapshot = window
8435 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8436 .unwrap();
8437
8438 let layouts = cx
8439 .update_window(*window, |_, window, cx| {
8440 element.layout_line_numbers(
8441 None,
8442 GutterDimensions {
8443 left_padding: Pixels::ZERO,
8444 right_padding: Pixels::ZERO,
8445 width: px(30.0),
8446 margin: Pixels::ZERO,
8447 git_blame_entries_width: None,
8448 },
8449 line_height,
8450 gpui::Point::default(),
8451 DisplayRow(0)..DisplayRow(6),
8452 &(0..6)
8453 .map(|row| RowInfo {
8454 buffer_row: Some(row),
8455 ..Default::default()
8456 })
8457 .collect::<Vec<_>>(),
8458 Some(DisplayPoint::new(DisplayRow(0), 0)),
8459 &snapshot,
8460 window,
8461 cx,
8462 )
8463 })
8464 .unwrap();
8465 assert_eq!(layouts.len(), 6);
8466
8467 let relative_rows = window
8468 .update(cx, |editor, window, cx| {
8469 let snapshot = editor.snapshot(window, cx);
8470 element.calculate_relative_line_numbers(
8471 &snapshot,
8472 &(DisplayRow(0)..DisplayRow(6)),
8473 Some(DisplayRow(3)),
8474 )
8475 })
8476 .unwrap();
8477 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8478 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8479 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8480 // current line has no relative number
8481 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8482 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8483
8484 // works if cursor is before screen
8485 let relative_rows = window
8486 .update(cx, |editor, window, cx| {
8487 let snapshot = editor.snapshot(window, cx);
8488 element.calculate_relative_line_numbers(
8489 &snapshot,
8490 &(DisplayRow(3)..DisplayRow(6)),
8491 Some(DisplayRow(1)),
8492 )
8493 })
8494 .unwrap();
8495 assert_eq!(relative_rows.len(), 3);
8496 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8497 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8498 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8499
8500 // works if cursor is after screen
8501 let relative_rows = window
8502 .update(cx, |editor, window, cx| {
8503 let snapshot = editor.snapshot(window, cx);
8504 element.calculate_relative_line_numbers(
8505 &snapshot,
8506 &(DisplayRow(0)..DisplayRow(3)),
8507 Some(DisplayRow(6)),
8508 )
8509 })
8510 .unwrap();
8511 assert_eq!(relative_rows.len(), 3);
8512 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8513 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8514 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8515 }
8516
8517 #[gpui::test]
8518 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8519 init_test(cx, |_| {});
8520
8521 let window = cx.add_window(|window, cx| {
8522 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8523 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8524 });
8525 let cx = &mut VisualTestContext::from_window(*window, cx);
8526 let editor = window.root(cx).unwrap();
8527 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8528
8529 window
8530 .update(cx, |editor, window, cx| {
8531 editor.cursor_shape = CursorShape::Block;
8532 editor.change_selections(None, window, cx, |s| {
8533 s.select_ranges([
8534 Point::new(0, 0)..Point::new(1, 0),
8535 Point::new(3, 2)..Point::new(3, 3),
8536 Point::new(5, 6)..Point::new(6, 0),
8537 ]);
8538 });
8539 })
8540 .unwrap();
8541
8542 let (_, state) = cx.draw(
8543 point(px(500.), px(500.)),
8544 size(px(500.), px(500.)),
8545 |_, _| EditorElement::new(&editor, style),
8546 );
8547
8548 assert_eq!(state.selections.len(), 1);
8549 let local_selections = &state.selections[0].1;
8550 assert_eq!(local_selections.len(), 3);
8551 // moves cursor back one line
8552 assert_eq!(
8553 local_selections[0].head,
8554 DisplayPoint::new(DisplayRow(0), 6)
8555 );
8556 assert_eq!(
8557 local_selections[0].range,
8558 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8559 );
8560
8561 // moves cursor back one column
8562 assert_eq!(
8563 local_selections[1].range,
8564 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8565 );
8566 assert_eq!(
8567 local_selections[1].head,
8568 DisplayPoint::new(DisplayRow(3), 2)
8569 );
8570
8571 // leaves cursor on the max point
8572 assert_eq!(
8573 local_selections[2].range,
8574 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8575 );
8576 assert_eq!(
8577 local_selections[2].head,
8578 DisplayPoint::new(DisplayRow(6), 0)
8579 );
8580
8581 // active lines does not include 1 (even though the range of the selection does)
8582 assert_eq!(
8583 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8584 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8585 );
8586
8587 // multi-buffer support
8588 // in DisplayPoint coordinates, this is what we're dealing with:
8589 // 0: [[file
8590 // 1: header
8591 // 2: section]]
8592 // 3: aaaaaa
8593 // 4: bbbbbb
8594 // 5: cccccc
8595 // 6:
8596 // 7: [[footer]]
8597 // 8: [[header]]
8598 // 9: ffffff
8599 // 10: gggggg
8600 // 11: hhhhhh
8601 // 12:
8602 // 13: [[footer]]
8603 // 14: [[file
8604 // 15: header
8605 // 16: section]]
8606 // 17: bbbbbb
8607 // 18: cccccc
8608 // 19: dddddd
8609 // 20: [[footer]]
8610 let window = cx.add_window(|window, cx| {
8611 let buffer = MultiBuffer::build_multi(
8612 [
8613 (
8614 &(sample_text(8, 6, 'a') + "\n"),
8615 vec![
8616 Point::new(0, 0)..Point::new(3, 0),
8617 Point::new(4, 0)..Point::new(7, 0),
8618 ],
8619 ),
8620 (
8621 &(sample_text(8, 6, 'a') + "\n"),
8622 vec![Point::new(1, 0)..Point::new(3, 0)],
8623 ),
8624 ],
8625 cx,
8626 );
8627 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8628 });
8629 let editor = window.root(cx).unwrap();
8630 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8631 let _state = window.update(cx, |editor, window, cx| {
8632 editor.cursor_shape = CursorShape::Block;
8633 editor.change_selections(None, window, cx, |s| {
8634 s.select_display_ranges([
8635 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8636 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8637 ]);
8638 });
8639 });
8640
8641 let (_, state) = cx.draw(
8642 point(px(500.), px(500.)),
8643 size(px(500.), px(500.)),
8644 |_, _| EditorElement::new(&editor, style),
8645 );
8646 assert_eq!(state.selections.len(), 1);
8647 let local_selections = &state.selections[0].1;
8648 assert_eq!(local_selections.len(), 2);
8649
8650 // moves cursor on excerpt boundary back a line
8651 // and doesn't allow selection to bleed through
8652 assert_eq!(
8653 local_selections[0].range,
8654 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8655 );
8656 assert_eq!(
8657 local_selections[0].head,
8658 DisplayPoint::new(DisplayRow(6), 0)
8659 );
8660 // moves cursor on buffer boundary back two lines
8661 // and doesn't allow selection to bleed through
8662 assert_eq!(
8663 local_selections[1].range,
8664 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8665 );
8666 assert_eq!(
8667 local_selections[1].head,
8668 DisplayPoint::new(DisplayRow(12), 0)
8669 );
8670 }
8671
8672 #[gpui::test]
8673 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8674 init_test(cx, |_| {});
8675
8676 let window = cx.add_window(|window, cx| {
8677 let buffer = MultiBuffer::build_simple("", cx);
8678 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8679 });
8680 let cx = &mut VisualTestContext::from_window(*window, cx);
8681 let editor = window.root(cx).unwrap();
8682 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8683 window
8684 .update(cx, |editor, window, cx| {
8685 editor.set_placeholder_text("hello", cx);
8686 editor.insert_blocks(
8687 [BlockProperties {
8688 style: BlockStyle::Fixed,
8689 placement: BlockPlacement::Above(Anchor::min()),
8690 height: 3,
8691 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8692 priority: 0,
8693 }],
8694 None,
8695 cx,
8696 );
8697
8698 // Blur the editor so that it displays placeholder text.
8699 window.blur();
8700 })
8701 .unwrap();
8702
8703 let (_, state) = cx.draw(
8704 point(px(500.), px(500.)),
8705 size(px(500.), px(500.)),
8706 |_, _| EditorElement::new(&editor, style),
8707 );
8708 assert_eq!(state.position_map.line_layouts.len(), 4);
8709 assert_eq!(state.line_numbers.len(), 1);
8710 assert_eq!(
8711 state
8712 .line_numbers
8713 .get(&MultiBufferRow(0))
8714 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8715 Some("1")
8716 );
8717 }
8718
8719 #[gpui::test]
8720 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8721 const TAB_SIZE: u32 = 4;
8722
8723 let input_text = "\t \t|\t| a b";
8724 let expected_invisibles = vec![
8725 Invisible::Tab {
8726 line_start_offset: 0,
8727 line_end_offset: TAB_SIZE as usize,
8728 },
8729 Invisible::Whitespace {
8730 line_offset: TAB_SIZE as usize,
8731 },
8732 Invisible::Tab {
8733 line_start_offset: TAB_SIZE as usize + 1,
8734 line_end_offset: TAB_SIZE as usize * 2,
8735 },
8736 Invisible::Tab {
8737 line_start_offset: TAB_SIZE as usize * 2 + 1,
8738 line_end_offset: TAB_SIZE as usize * 3,
8739 },
8740 Invisible::Whitespace {
8741 line_offset: TAB_SIZE as usize * 3 + 1,
8742 },
8743 Invisible::Whitespace {
8744 line_offset: TAB_SIZE as usize * 3 + 3,
8745 },
8746 ];
8747 assert_eq!(
8748 expected_invisibles.len(),
8749 input_text
8750 .chars()
8751 .filter(|initial_char| initial_char.is_whitespace())
8752 .count(),
8753 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8754 );
8755
8756 for show_line_numbers in [true, false] {
8757 init_test(cx, |s| {
8758 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8759 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8760 });
8761
8762 let actual_invisibles = collect_invisibles_from_new_editor(
8763 cx,
8764 EditorMode::Full,
8765 input_text,
8766 px(500.0),
8767 show_line_numbers,
8768 );
8769
8770 assert_eq!(expected_invisibles, actual_invisibles);
8771 }
8772 }
8773
8774 #[gpui::test]
8775 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8776 init_test(cx, |s| {
8777 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8778 s.defaults.tab_size = NonZeroU32::new(4);
8779 });
8780
8781 for editor_mode_without_invisibles in [
8782 EditorMode::SingleLine { auto_width: false },
8783 EditorMode::AutoHeight { max_lines: 100 },
8784 ] {
8785 for show_line_numbers in [true, false] {
8786 let invisibles = collect_invisibles_from_new_editor(
8787 cx,
8788 editor_mode_without_invisibles,
8789 "\t\t\t| | a b",
8790 px(500.0),
8791 show_line_numbers,
8792 );
8793 assert!(invisibles.is_empty(),
8794 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8795 }
8796 }
8797 }
8798
8799 #[gpui::test]
8800 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8801 let tab_size = 4;
8802 let input_text = "a\tbcd ".repeat(9);
8803 let repeated_invisibles = [
8804 Invisible::Tab {
8805 line_start_offset: 1,
8806 line_end_offset: tab_size as usize,
8807 },
8808 Invisible::Whitespace {
8809 line_offset: tab_size as usize + 3,
8810 },
8811 Invisible::Whitespace {
8812 line_offset: tab_size as usize + 4,
8813 },
8814 Invisible::Whitespace {
8815 line_offset: tab_size as usize + 5,
8816 },
8817 Invisible::Whitespace {
8818 line_offset: tab_size as usize + 6,
8819 },
8820 Invisible::Whitespace {
8821 line_offset: tab_size as usize + 7,
8822 },
8823 ];
8824 let expected_invisibles = std::iter::once(repeated_invisibles)
8825 .cycle()
8826 .take(9)
8827 .flatten()
8828 .collect::<Vec<_>>();
8829 assert_eq!(
8830 expected_invisibles.len(),
8831 input_text
8832 .chars()
8833 .filter(|initial_char| initial_char.is_whitespace())
8834 .count(),
8835 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8836 );
8837 info!("Expected invisibles: {expected_invisibles:?}");
8838
8839 init_test(cx, |_| {});
8840
8841 // Put the same string with repeating whitespace pattern into editors of various size,
8842 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8843 let resize_step = 10.0;
8844 let mut editor_width = 200.0;
8845 while editor_width <= 1000.0 {
8846 for show_line_numbers in [true, false] {
8847 update_test_language_settings(cx, |s| {
8848 s.defaults.tab_size = NonZeroU32::new(tab_size);
8849 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8850 s.defaults.preferred_line_length = Some(editor_width as u32);
8851 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8852 });
8853
8854 let actual_invisibles = collect_invisibles_from_new_editor(
8855 cx,
8856 EditorMode::Full,
8857 &input_text,
8858 px(editor_width),
8859 show_line_numbers,
8860 );
8861
8862 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8863 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8864 let mut i = 0;
8865 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8866 i = actual_index;
8867 match expected_invisibles.get(i) {
8868 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8869 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8870 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8871 _ => {
8872 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8873 }
8874 },
8875 None => {
8876 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8877 }
8878 }
8879 }
8880 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8881 assert!(
8882 missing_expected_invisibles.is_empty(),
8883 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8884 );
8885
8886 editor_width += resize_step;
8887 }
8888 }
8889 }
8890
8891 fn collect_invisibles_from_new_editor(
8892 cx: &mut TestAppContext,
8893 editor_mode: EditorMode,
8894 input_text: &str,
8895 editor_width: Pixels,
8896 show_line_numbers: bool,
8897 ) -> Vec<Invisible> {
8898 info!(
8899 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8900 editor_width.0
8901 );
8902 let window = cx.add_window(|window, cx| {
8903 let buffer = MultiBuffer::build_simple(input_text, cx);
8904 Editor::new(editor_mode, buffer, None, true, window, cx)
8905 });
8906 let cx = &mut VisualTestContext::from_window(*window, cx);
8907 let editor = window.root(cx).unwrap();
8908
8909 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8910 window
8911 .update(cx, |editor, _, cx| {
8912 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8913 editor.set_wrap_width(Some(editor_width), cx);
8914 editor.set_show_line_numbers(show_line_numbers, cx);
8915 })
8916 .unwrap();
8917 let (_, state) = cx.draw(
8918 point(px(500.), px(500.)),
8919 size(px(500.), px(500.)),
8920 |_, _| EditorElement::new(&editor, style),
8921 );
8922 state
8923 .position_map
8924 .line_layouts
8925 .iter()
8926 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8927 .cloned()
8928 .collect()
8929 }
8930}
8931
8932fn diff_hunk_controls(
8933 row: u32,
8934 hunk_range: Range<Anchor>,
8935 line_height: Pixels,
8936 editor: &Entity<Editor>,
8937 cx: &mut App,
8938) -> AnyElement {
8939 h_flex()
8940 .h(line_height)
8941 .mr_1()
8942 .gap_1()
8943 .px_1()
8944 .pb_1()
8945 .border_b_1()
8946 .border_color(cx.theme().colors().border_variant)
8947 .rounded_b_lg()
8948 .bg(cx.theme().colors().editor_background)
8949 .gap_1()
8950 .child(
8951 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8952 .shape(IconButtonShape::Square)
8953 .icon_size(IconSize::Small)
8954 // .disabled(!has_multiple_hunks)
8955 .tooltip({
8956 let focus_handle = editor.focus_handle(cx);
8957 move |window, cx| {
8958 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8959 }
8960 })
8961 .on_click({
8962 let editor = editor.clone();
8963 move |_event, window, cx| {
8964 editor.update(cx, |editor, cx| {
8965 let snapshot = editor.snapshot(window, cx);
8966 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8967 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8968 editor.expand_selected_diff_hunks(cx);
8969 });
8970 }
8971 }),
8972 )
8973 .child(
8974 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8975 .shape(IconButtonShape::Square)
8976 .icon_size(IconSize::Small)
8977 // .disabled(!has_multiple_hunks)
8978 .tooltip({
8979 let focus_handle = editor.focus_handle(cx);
8980 move |window, cx| {
8981 Tooltip::for_action_in(
8982 "Previous Hunk",
8983 &GoToPrevHunk,
8984 &focus_handle,
8985 window,
8986 cx,
8987 )
8988 }
8989 })
8990 .on_click({
8991 let editor = editor.clone();
8992 move |_event, window, cx| {
8993 editor.update(cx, |editor, cx| {
8994 let snapshot = editor.snapshot(window, cx);
8995 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8996 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8997 editor.expand_selected_diff_hunks(cx);
8998 });
8999 }
9000 }),
9001 )
9002 .child(
9003 IconButton::new("discard", IconName::Undo)
9004 .shape(IconButtonShape::Square)
9005 .icon_size(IconSize::Small)
9006 .tooltip({
9007 let focus_handle = editor.focus_handle(cx);
9008 move |window, cx| {
9009 Tooltip::for_action_in(
9010 "Discard Hunk",
9011 &RevertSelectedHunks,
9012 &focus_handle,
9013 window,
9014 cx,
9015 )
9016 }
9017 })
9018 .on_click({
9019 let editor = editor.clone();
9020 move |_event, window, cx| {
9021 editor.update(cx, |editor, cx| {
9022 let snapshot = editor.snapshot(window, cx);
9023 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
9024 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
9025 });
9026 }
9027 }),
9028 )
9029 .into_any_element()
9030}