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 max_width = max_width_for_stable_x.max(
3245 context_menu
3246 .as_ref()
3247 .map_or(px(0.), |(_, _, size)| size.width),
3248 );
3249 let edit_prediction = if edit_prediction_popover_visible {
3250 let accept_keystroke: Option<Keystroke>;
3251
3252 // TODO: load modifier from keymap.
3253 // `bindings_for_action_in` returns `None` in Linux, and is intermittent on macOS
3254 #[cfg(target_os = "macos")]
3255 {
3256 // let bindings = window.bindings_for_action_in(
3257 // &crate::AcceptInlineCompletion,
3258 // &self.editor.focus_handle(cx),
3259 // );
3260
3261 // let last_binding = bindings.last();
3262
3263 // accept_keystroke = if let Some(binding) = last_binding {
3264 // match &binding.keystrokes() {
3265 // // TODO: no need to clone once this logic works on linux.
3266 // [keystroke] => Some(keystroke.clone()),
3267 // _ => None,
3268 // }
3269 // } else {
3270 // None
3271 // };
3272 accept_keystroke = Some(Keystroke {
3273 modifiers: gpui::Modifiers {
3274 alt: true,
3275 control: false,
3276 shift: false,
3277 platform: false,
3278 function: false,
3279 },
3280 key: "tab".to_string(),
3281 key_char: None,
3282 });
3283 }
3284
3285 #[cfg(not(target_os = "macos"))]
3286 {
3287 accept_keystroke = Some(Keystroke {
3288 modifiers: gpui::Modifiers {
3289 alt: true,
3290 control: false,
3291 shift: false,
3292 platform: false,
3293 function: false,
3294 },
3295 key: "enter".to_string(),
3296 key_char: None,
3297 });
3298 }
3299
3300 self.editor.update(cx, move |editor, cx| {
3301 let mut element = editor.render_edit_prediction_cursor_popover(
3302 max_width,
3303 cursor_point,
3304 style,
3305 accept_keystroke.as_ref()?,
3306 window,
3307 cx,
3308 )?;
3309 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3310 Some((CursorPopoverType::EditPrediction, element, size))
3311 })
3312 } else {
3313 None
3314 };
3315 vec![edit_prediction, context_menu]
3316 .into_iter()
3317 .flatten()
3318 .collect::<Vec<_>>()
3319 },
3320 ) else {
3321 return;
3322 };
3323
3324 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3325 .iter()
3326 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3327 else {
3328 return;
3329 };
3330 let last_ix = laid_out_popovers.len() - 1;
3331 let menu_is_last = menu_ix == last_ix;
3332 let first_popover_bounds = laid_out_popovers[0].1;
3333 let last_popover_bounds = laid_out_popovers[last_ix].1;
3334
3335 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3336 // right, and otherwise it goes below or to the right.
3337 let mut target_bounds = Bounds::from_corners(
3338 first_popover_bounds.origin,
3339 last_popover_bounds.bottom_right(),
3340 );
3341 target_bounds.size.width = menu_bounds.size.width;
3342
3343 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3344 // based on this is preferred for layout stability.
3345 let mut max_target_bounds = target_bounds;
3346 max_target_bounds.size.height = max_height;
3347 if y_flipped {
3348 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3349 }
3350
3351 // Add spacing around `target_bounds` and `max_target_bounds`.
3352 let mut extend_amount = Edges::all(MENU_GAP);
3353 if y_flipped {
3354 extend_amount.bottom = line_height;
3355 } else {
3356 extend_amount.top = line_height;
3357 }
3358 let target_bounds = target_bounds.extend(extend_amount);
3359 let max_target_bounds = max_target_bounds.extend(extend_amount);
3360
3361 let must_place_above_or_below =
3362 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3363 laid_out_popovers[menu_ix + 1..]
3364 .iter()
3365 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3366 } else {
3367 false
3368 };
3369
3370 self.layout_context_menu_aside(
3371 y_flipped,
3372 *menu_bounds,
3373 target_bounds,
3374 max_target_bounds,
3375 max_menu_height,
3376 must_place_above_or_below,
3377 text_hitbox,
3378 viewport_bounds,
3379 window,
3380 cx,
3381 );
3382 }
3383
3384 #[allow(clippy::too_many_arguments)]
3385 fn layout_gutter_menu(
3386 &self,
3387 line_height: Pixels,
3388 text_hitbox: &Hitbox,
3389 content_origin: gpui::Point<Pixels>,
3390 scroll_pixel_position: gpui::Point<Pixels>,
3391 gutter_overshoot: Pixels,
3392 window: &mut Window,
3393 cx: &mut App,
3394 ) {
3395 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3396 self.editor.read(cx).context_menu_origin()
3397 else {
3398 return;
3399 };
3400 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3401 // indicator than just a plain first column of the text field.
3402 let target_position = content_origin
3403 + gpui::Point {
3404 x: -gutter_overshoot,
3405 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3406 };
3407 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3408 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3409 let viewport_bounds =
3410 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3411 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3412 ..Default::default()
3413 });
3414 self.layout_popovers_above_or_below_line(
3415 target_position,
3416 line_height,
3417 min_height,
3418 max_height,
3419 text_hitbox,
3420 viewport_bounds,
3421 window,
3422 cx,
3423 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3424 let Some(mut element) =
3425 self.render_context_menu(line_height, height, y_flipped, window, cx)
3426 else {
3427 return vec![];
3428 };
3429 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3430 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3431 },
3432 );
3433 }
3434
3435 #[allow(clippy::too_many_arguments)]
3436 fn layout_popovers_above_or_below_line(
3437 &self,
3438 target_position: gpui::Point<Pixels>,
3439 line_height: Pixels,
3440 min_height: Pixels,
3441 max_height: Pixels,
3442 text_hitbox: &Hitbox,
3443 viewport_bounds: Bounds<Pixels>,
3444 window: &mut Window,
3445 cx: &mut App,
3446 make_sized_popovers: impl FnOnce(
3447 Pixels,
3448 Pixels,
3449 bool,
3450 &mut Window,
3451 &mut App,
3452 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3453 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3454 // If the max height won't fit below and there is more space above, put it above the line.
3455 let bottom_y_when_flipped = target_position.y - line_height;
3456 let available_above = bottom_y_when_flipped - text_hitbox.top();
3457 let available_below = text_hitbox.bottom() - target_position.y;
3458 let y_overflows_below = max_height > available_below;
3459 let mut y_flipped = y_overflows_below && available_above > available_below;
3460 let mut height = cmp::min(
3461 max_height,
3462 if y_flipped {
3463 available_above
3464 } else {
3465 available_below
3466 },
3467 );
3468
3469 // If the min height doesn't fit within text bounds, instead fit within the window.
3470 if height < min_height {
3471 let available_above = bottom_y_when_flipped;
3472 let available_below = viewport_bounds.bottom() - target_position.y;
3473 if available_below > min_height {
3474 y_flipped = false;
3475 height = min_height;
3476 } else if available_above > min_height {
3477 y_flipped = true;
3478 height = min_height;
3479 } else if available_above > available_below {
3480 y_flipped = true;
3481 height = available_above;
3482 } else {
3483 y_flipped = false;
3484 height = available_below;
3485 }
3486 }
3487
3488 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3489
3490 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3491 // for very narrow windows.
3492 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3493 if popovers.is_empty() {
3494 return None;
3495 }
3496
3497 let max_width = popovers
3498 .iter()
3499 .map(|(_, _, size)| size.width)
3500 .max()
3501 .unwrap_or_default();
3502
3503 let mut current_position = gpui::Point {
3504 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3505 // overflow. Include space for the scrollbar.
3506 x: target_position
3507 .x
3508 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3509 y: if y_flipped {
3510 bottom_y_when_flipped
3511 } else {
3512 target_position.y
3513 },
3514 };
3515
3516 let mut laid_out_popovers = popovers
3517 .into_iter()
3518 .map(|(popover_type, element, size)| {
3519 if y_flipped {
3520 current_position.y -= size.height;
3521 }
3522 let position = current_position;
3523 window.defer_draw(element, current_position, 1);
3524 if !y_flipped {
3525 current_position.y += size.height + MENU_GAP;
3526 } else {
3527 current_position.y -= MENU_GAP;
3528 }
3529 (popover_type, Bounds::new(position, size))
3530 })
3531 .collect::<Vec<_>>();
3532
3533 if y_flipped {
3534 laid_out_popovers.reverse();
3535 }
3536
3537 Some((laid_out_popovers, y_flipped))
3538 }
3539
3540 #[allow(clippy::too_many_arguments)]
3541 fn layout_context_menu_aside(
3542 &self,
3543 y_flipped: bool,
3544 menu_bounds: Bounds<Pixels>,
3545 target_bounds: Bounds<Pixels>,
3546 max_target_bounds: Bounds<Pixels>,
3547 max_height: Pixels,
3548 must_place_above_or_below: bool,
3549 text_hitbox: &Hitbox,
3550 viewport_bounds: Bounds<Pixels>,
3551 window: &mut Window,
3552 cx: &mut App,
3553 ) {
3554 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3555 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3556 && !must_place_above_or_below
3557 {
3558 let max_width = cmp::min(
3559 available_within_viewport.right - px(1.),
3560 MENU_ASIDE_MAX_WIDTH,
3561 );
3562 let Some(mut aside) =
3563 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3564 else {
3565 return;
3566 };
3567 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3568 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3569 Some((aside, right_position))
3570 } else {
3571 let max_size = size(
3572 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3573 // won't be needed here.
3574 cmp::min(
3575 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3576 viewport_bounds.right(),
3577 ),
3578 cmp::min(
3579 max_height,
3580 cmp::max(
3581 available_within_viewport.top,
3582 available_within_viewport.bottom,
3583 ),
3584 ) - POPOVER_Y_PADDING,
3585 );
3586 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3587 return;
3588 };
3589 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3590
3591 let top_position = point(
3592 menu_bounds.origin.x,
3593 target_bounds.top() - actual_size.height,
3594 );
3595 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3596
3597 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3598 // Prefer to fit on the same side of the line as the menu, then on the other side of
3599 // the line.
3600 if !y_flipped && wanted.height < available.bottom {
3601 Some(bottom_position)
3602 } else if !y_flipped && wanted.height < available.top {
3603 Some(top_position)
3604 } else if y_flipped && wanted.height < available.top {
3605 Some(top_position)
3606 } else if y_flipped && wanted.height < available.bottom {
3607 Some(bottom_position)
3608 } else {
3609 None
3610 }
3611 };
3612
3613 // Prefer choosing a direction using max sizes rather than actual size for stability.
3614 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3615 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3616 let aside_position = fit_within(available_within_text, wanted)
3617 // Fallback: fit max size in window.
3618 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3619 // Fallback: fit actual size in window.
3620 .or_else(|| fit_within(available_within_viewport, actual_size));
3621
3622 aside_position.map(|position| (aside, position))
3623 };
3624
3625 // Skip drawing if it doesn't fit anywhere.
3626 if let Some((aside, position)) = positioned_aside {
3627 window.defer_draw(aside, position, 1);
3628 }
3629 }
3630
3631 fn render_context_menu(
3632 &self,
3633 line_height: Pixels,
3634 height: Pixels,
3635 y_flipped: bool,
3636 window: &mut Window,
3637 cx: &mut App,
3638 ) -> Option<AnyElement> {
3639 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3640 self.editor.update(cx, |editor, cx| {
3641 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3642 })
3643 }
3644
3645 fn render_context_menu_aside(
3646 &self,
3647 max_size: Size<Pixels>,
3648
3649 cx: &mut App,
3650 ) -> Option<AnyElement> {
3651 if max_size.width < px(100.) || max_size.height < px(12.) {
3652 None
3653 } else {
3654 self.editor.update(cx, |editor, cx| {
3655 editor.render_context_menu_aside(&self.style, max_size, cx)
3656 })
3657 }
3658 }
3659
3660 #[allow(clippy::too_many_arguments)]
3661 fn layout_inline_completion_popover(
3662 &self,
3663 text_bounds: &Bounds<Pixels>,
3664 editor_snapshot: &EditorSnapshot,
3665 visible_row_range: Range<DisplayRow>,
3666 scroll_top: f32,
3667 scroll_bottom: f32,
3668 line_layouts: &[LineWithInvisibles],
3669 line_height: Pixels,
3670 scroll_pixel_position: gpui::Point<Pixels>,
3671 newest_selection_head: Option<DisplayPoint>,
3672 editor_width: Pixels,
3673 style: &EditorStyle,
3674 window: &mut Window,
3675 cx: &mut App,
3676 ) -> Option<AnyElement> {
3677 const PADDING_X: Pixels = Pixels(24.);
3678 const PADDING_Y: Pixels = Pixels(2.);
3679
3680 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3681
3682 match &active_inline_completion.completion {
3683 InlineCompletion::Move { target, .. } => {
3684 let target_display_point = target.to_display_point(editor_snapshot);
3685 if target_display_point.row().as_f32() < scroll_top {
3686 let mut element = inline_completion_accept_indicator(
3687 "Jump to Edit",
3688 Some(IconName::ArrowUp),
3689 self.editor.focus_handle(cx),
3690 window,
3691 cx,
3692 );
3693 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3694 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3695 element.prepaint_at(text_bounds.origin + offset, window, cx);
3696 Some(element)
3697 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3698 let mut element = inline_completion_accept_indicator(
3699 "Jump to Edit",
3700 Some(IconName::ArrowDown),
3701 self.editor.focus_handle(cx),
3702 window,
3703 cx,
3704 );
3705 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3706 let offset = point(
3707 (text_bounds.size.width - size.width) / 2.,
3708 text_bounds.size.height - size.height - PADDING_Y,
3709 );
3710 element.prepaint_at(text_bounds.origin + offset, window, cx);
3711 Some(element)
3712 } else {
3713 let mut element = inline_completion_accept_indicator(
3714 "Jump to Edit",
3715 None,
3716 self.editor.focus_handle(cx),
3717 window,
3718 cx,
3719 );
3720
3721 let target_line_end = DisplayPoint::new(
3722 target_display_point.row(),
3723 editor_snapshot.line_len(target_display_point.row()),
3724 );
3725 let origin = self.editor.update(cx, |editor, _cx| {
3726 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3727 })?;
3728 element.prepaint_as_root(
3729 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3730 AvailableSpace::min_size(),
3731 window,
3732 cx,
3733 );
3734 Some(element)
3735 }
3736 }
3737 InlineCompletion::Edit {
3738 edits,
3739 edit_preview,
3740 display_mode,
3741 snapshot,
3742 } => {
3743 if self.editor.read(cx).has_active_completions_menu() {
3744 return None;
3745 }
3746
3747 let edit_start = edits
3748 .first()
3749 .unwrap()
3750 .0
3751 .start
3752 .to_display_point(editor_snapshot);
3753 let edit_end = edits
3754 .last()
3755 .unwrap()
3756 .0
3757 .end
3758 .to_display_point(editor_snapshot);
3759
3760 let is_visible = visible_row_range.contains(&edit_start.row())
3761 || visible_row_range.contains(&edit_end.row());
3762 if !is_visible {
3763 return None;
3764 }
3765
3766 match display_mode {
3767 EditDisplayMode::TabAccept => {
3768 let range = &edits.first()?.0;
3769 let target_display_point = range.end.to_display_point(editor_snapshot);
3770
3771 let target_line_end = DisplayPoint::new(
3772 target_display_point.row(),
3773 editor_snapshot.line_len(target_display_point.row()),
3774 );
3775 let origin = self.editor.update(cx, |editor, _cx| {
3776 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3777 })?;
3778
3779 let mut element = inline_completion_accept_indicator(
3780 "Accept",
3781 None,
3782 self.editor.focus_handle(cx),
3783 window,
3784 cx,
3785 );
3786
3787 element.prepaint_as_root(
3788 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3789 AvailableSpace::min_size(),
3790 window,
3791 cx,
3792 );
3793
3794 return Some(element);
3795 }
3796 EditDisplayMode::Inline => return None,
3797 EditDisplayMode::DiffPopover => {}
3798 }
3799
3800 let highlighted_edits = crate::inline_completion_edit_text(
3801 &snapshot,
3802 edits,
3803 edit_preview.as_ref()?,
3804 false,
3805 cx,
3806 );
3807
3808 let line_count = highlighted_edits.text.lines().count();
3809
3810 let longest_row =
3811 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3812 let longest_line_width = if visible_row_range.contains(&longest_row) {
3813 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3814 } else {
3815 layout_line(
3816 longest_row,
3817 editor_snapshot,
3818 style,
3819 editor_width,
3820 |_| false,
3821 window,
3822 cx,
3823 )
3824 .width
3825 };
3826
3827 let styled_text = highlighted_edits.to_styled_text(&style.text);
3828
3829 let mut element = div()
3830 .bg(cx.theme().colors().editor_background)
3831 .border_1()
3832 .border_color(cx.theme().colors().border)
3833 .rounded_md()
3834 .child(styled_text)
3835 .into_any();
3836
3837 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3838 .extend(Edges {
3839 right: -Self::SCROLLBAR_WIDTH,
3840 ..Default::default()
3841 });
3842
3843 let x_after_longest =
3844 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3845
3846 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3847
3848 // Fully visible if it can be displayed within the window (allow overlapping other
3849 // panes). However, this is only allowed if the popover starts within text_bounds.
3850 let is_fully_visible = x_after_longest < text_bounds.right()
3851 && x_after_longest + element_bounds.width < viewport_bounds.right();
3852
3853 let origin = if is_fully_visible {
3854 point(
3855 x_after_longest,
3856 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3857 - scroll_pixel_position.y,
3858 )
3859 } else {
3860 // Avoid overlapping both the edited rows and the user's cursor.
3861 let target_above = DisplayRow(
3862 edit_start
3863 .row()
3864 .0
3865 .min(
3866 newest_selection_head
3867 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3868 )
3869 .saturating_sub(line_count as u32),
3870 );
3871 let mut row_target;
3872 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3873 row_target = target_above;
3874 } else {
3875 row_target = DisplayRow(
3876 edit_end.row().0.max(
3877 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3878 ) + 1,
3879 );
3880 if !visible_row_range.contains(&row_target) {
3881 // Not visible, so fallback on displaying immediately below the cursor.
3882 if let Some(cursor) = newest_selection_head {
3883 row_target = DisplayRow(cursor.row().0 + 1);
3884 } else {
3885 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3886 row_target = DisplayRow(0);
3887 }
3888 }
3889 };
3890
3891 text_bounds.origin
3892 + point(
3893 -scroll_pixel_position.x,
3894 row_target.as_f32() * line_height - scroll_pixel_position.y,
3895 )
3896 };
3897
3898 window.defer_draw(element, origin, 1);
3899
3900 // Do not return an element, since it will already be drawn due to defer_draw.
3901 None
3902 }
3903 }
3904 }
3905
3906 fn layout_mouse_context_menu(
3907 &self,
3908 editor_snapshot: &EditorSnapshot,
3909 visible_range: Range<DisplayRow>,
3910 content_origin: gpui::Point<Pixels>,
3911 window: &mut Window,
3912 cx: &mut App,
3913 ) -> Option<AnyElement> {
3914 let position = self.editor.update(cx, |editor, _cx| {
3915 let visible_start_point = editor.display_to_pixel_point(
3916 DisplayPoint::new(visible_range.start, 0),
3917 editor_snapshot,
3918 window,
3919 )?;
3920 let visible_end_point = editor.display_to_pixel_point(
3921 DisplayPoint::new(visible_range.end, 0),
3922 editor_snapshot,
3923 window,
3924 )?;
3925
3926 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3927 let (source_display_point, position) = match mouse_context_menu.position {
3928 MenuPosition::PinnedToScreen(point) => (None, point),
3929 MenuPosition::PinnedToEditor { source, offset } => {
3930 let source_display_point = source.to_display_point(editor_snapshot);
3931 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3932 let position = content_origin + source_point + offset;
3933 (Some(source_display_point), position)
3934 }
3935 };
3936
3937 let source_included = source_display_point.map_or(true, |source_display_point| {
3938 visible_range
3939 .to_inclusive()
3940 .contains(&source_display_point.row())
3941 });
3942 let position_included =
3943 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3944 if !source_included && !position_included {
3945 None
3946 } else {
3947 Some(position)
3948 }
3949 })?;
3950
3951 let mut element = self.editor.update(cx, |editor, _| {
3952 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3953 let context_menu = mouse_context_menu.context_menu.clone();
3954
3955 Some(
3956 deferred(
3957 anchored()
3958 .position(position)
3959 .child(context_menu)
3960 .anchor(Corner::TopLeft)
3961 .snap_to_window_with_margin(px(8.)),
3962 )
3963 .with_priority(1)
3964 .into_any(),
3965 )
3966 })?;
3967
3968 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3969 Some(element)
3970 }
3971
3972 #[allow(clippy::too_many_arguments)]
3973 fn layout_hover_popovers(
3974 &self,
3975 snapshot: &EditorSnapshot,
3976 hitbox: &Hitbox,
3977 text_hitbox: &Hitbox,
3978 visible_display_row_range: Range<DisplayRow>,
3979 content_origin: gpui::Point<Pixels>,
3980 scroll_pixel_position: gpui::Point<Pixels>,
3981 line_layouts: &[LineWithInvisibles],
3982 line_height: Pixels,
3983 em_width: Pixels,
3984 window: &mut Window,
3985 cx: &mut App,
3986 ) {
3987 struct MeasuredHoverPopover {
3988 element: AnyElement,
3989 size: Size<Pixels>,
3990 horizontal_offset: Pixels,
3991 }
3992
3993 let max_size = size(
3994 (120. * em_width) // Default size
3995 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3996 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3997 (16. * line_height) // Default size
3998 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3999 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4000 );
4001
4002 let hover_popovers = self.editor.update(cx, |editor, cx| {
4003 editor
4004 .hover_state
4005 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
4006 });
4007 let Some((position, hover_popovers)) = hover_popovers else {
4008 return;
4009 };
4010
4011 // This is safe because we check on layout whether the required row is available
4012 let hovered_row_layout =
4013 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4014
4015 // Compute Hovered Point
4016 let x =
4017 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4018 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4019 let hovered_point = content_origin + point(x, y);
4020
4021 let mut overall_height = Pixels::ZERO;
4022 let mut measured_hover_popovers = Vec::new();
4023 for mut hover_popover in hover_popovers {
4024 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4025 let horizontal_offset =
4026 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
4027
4028 overall_height += HOVER_POPOVER_GAP + size.height;
4029
4030 measured_hover_popovers.push(MeasuredHoverPopover {
4031 element: hover_popover,
4032 size,
4033 horizontal_offset,
4034 });
4035 }
4036 overall_height += HOVER_POPOVER_GAP;
4037
4038 fn draw_occluder(
4039 width: Pixels,
4040 origin: gpui::Point<Pixels>,
4041 window: &mut Window,
4042 cx: &mut App,
4043 ) {
4044 let mut occlusion = div()
4045 .size_full()
4046 .occlude()
4047 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4048 .into_any_element();
4049 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4050 window.defer_draw(occlusion, origin, 2);
4051 }
4052
4053 if hovered_point.y > overall_height {
4054 // There is enough space above. Render popovers above the hovered point
4055 let mut current_y = hovered_point.y;
4056 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4057 let size = popover.size;
4058 let popover_origin = point(
4059 hovered_point.x + popover.horizontal_offset,
4060 current_y - size.height,
4061 );
4062
4063 window.defer_draw(popover.element, popover_origin, 2);
4064 if position != itertools::Position::Last {
4065 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4066 draw_occluder(size.width, origin, window, cx);
4067 }
4068
4069 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4070 }
4071 } else {
4072 // There is not enough space above. Render popovers below the hovered point
4073 let mut current_y = hovered_point.y + line_height;
4074 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4075 let size = popover.size;
4076 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4077
4078 window.defer_draw(popover.element, popover_origin, 2);
4079 if position != itertools::Position::Last {
4080 let origin = point(popover_origin.x, popover_origin.y + size.height);
4081 draw_occluder(size.width, origin, window, cx);
4082 }
4083
4084 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4085 }
4086 }
4087 }
4088
4089 #[allow(clippy::too_many_arguments)]
4090 fn layout_diff_hunk_controls(
4091 &self,
4092 row_range: Range<DisplayRow>,
4093 row_infos: &[RowInfo],
4094 text_hitbox: &Hitbox,
4095 position_map: &PositionMap,
4096 newest_cursor_position: Option<DisplayPoint>,
4097 line_height: Pixels,
4098 scroll_pixel_position: gpui::Point<Pixels>,
4099 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4100 editor: Entity<Editor>,
4101 window: &mut Window,
4102 cx: &mut App,
4103 ) -> Vec<AnyElement> {
4104 let point_for_position =
4105 position_map.point_for_position(text_hitbox.bounds, window.mouse_position());
4106
4107 let mut controls = vec![];
4108
4109 let active_positions = [
4110 Some(point_for_position.previous_valid),
4111 newest_cursor_position,
4112 ];
4113
4114 for (hunk, _) in display_hunks {
4115 if let DisplayDiffHunk::Unfolded {
4116 display_row_range,
4117 multi_buffer_range,
4118 status,
4119 ..
4120 } = &hunk
4121 {
4122 if display_row_range.start < row_range.start
4123 || display_row_range.start >= row_range.end
4124 {
4125 continue;
4126 }
4127 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4128 if row_infos[row_ix].diff_status.is_none() {
4129 continue;
4130 }
4131 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4132 && *status != DiffHunkStatus::Added
4133 {
4134 continue;
4135 }
4136 if active_positions
4137 .iter()
4138 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4139 {
4140 let y = display_row_range.start.as_f32() * line_height
4141 + text_hitbox.bounds.top()
4142 - scroll_pixel_position.y;
4143 let x = text_hitbox.bounds.right() - px(100.);
4144
4145 let mut element = diff_hunk_controls(
4146 display_row_range.start.0,
4147 multi_buffer_range.clone(),
4148 line_height,
4149 &editor,
4150 cx,
4151 );
4152 element.prepaint_as_root(
4153 gpui::Point::new(x, y),
4154 size(px(100.0), line_height).into(),
4155 window,
4156 cx,
4157 );
4158 controls.push(element);
4159 }
4160 }
4161 }
4162
4163 controls
4164 }
4165
4166 #[allow(clippy::too_many_arguments)]
4167 fn layout_signature_help(
4168 &self,
4169 hitbox: &Hitbox,
4170 content_origin: gpui::Point<Pixels>,
4171 scroll_pixel_position: gpui::Point<Pixels>,
4172 newest_selection_head: Option<DisplayPoint>,
4173 start_row: DisplayRow,
4174 line_layouts: &[LineWithInvisibles],
4175 line_height: Pixels,
4176 em_width: Pixels,
4177 window: &mut Window,
4178 cx: &mut App,
4179 ) {
4180 if !self.editor.focus_handle(cx).is_focused(window) {
4181 return;
4182 }
4183 let Some(newest_selection_head) = newest_selection_head else {
4184 return;
4185 };
4186 let selection_row = newest_selection_head.row();
4187 if selection_row < start_row {
4188 return;
4189 }
4190 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4191 else {
4192 return;
4193 };
4194
4195 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4196 - scroll_pixel_position.x
4197 + content_origin.x;
4198 let start_y =
4199 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4200
4201 let max_size = size(
4202 (120. * em_width) // Default size
4203 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4204 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4205 (16. * line_height) // Default size
4206 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4207 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4208 );
4209
4210 let maybe_element = self.editor.update(cx, |editor, cx| {
4211 if let Some(popover) = editor.signature_help_state.popover_mut() {
4212 let element = popover.render(
4213 &self.style,
4214 max_size,
4215 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4216 cx,
4217 );
4218 Some(element)
4219 } else {
4220 None
4221 }
4222 });
4223 if let Some(mut element) = maybe_element {
4224 let window_size = window.viewport_size();
4225 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4226 let mut point = point(start_x, start_y - size.height);
4227
4228 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4229 if point.x + size.width >= window_size.width {
4230 point.x = window_size.width - size.width;
4231 }
4232
4233 window.defer_draw(element, point, 1)
4234 }
4235 }
4236
4237 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4238 window.paint_layer(layout.hitbox.bounds, |window| {
4239 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4240 let gutter_bg = cx.theme().colors().editor_gutter_background;
4241 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4242 window.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
4243
4244 if let EditorMode::Full = layout.mode {
4245 let mut active_rows = layout.active_rows.iter().peekable();
4246 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4247 let mut end_row = start_row.0;
4248 while active_rows
4249 .peek()
4250 .map_or(false, |(active_row, has_selection)| {
4251 active_row.0 == end_row + 1
4252 && *has_selection == contains_non_empty_selection
4253 })
4254 {
4255 active_rows.next().unwrap();
4256 end_row += 1;
4257 }
4258
4259 if !contains_non_empty_selection {
4260 let highlight_h_range =
4261 match layout.position_map.snapshot.current_line_highlight {
4262 CurrentLineHighlight::Gutter => Some(Range {
4263 start: layout.hitbox.left(),
4264 end: layout.gutter_hitbox.right(),
4265 }),
4266 CurrentLineHighlight::Line => Some(Range {
4267 start: layout.text_hitbox.bounds.left(),
4268 end: layout.text_hitbox.bounds.right(),
4269 }),
4270 CurrentLineHighlight::All => Some(Range {
4271 start: layout.hitbox.left(),
4272 end: layout.hitbox.right(),
4273 }),
4274 CurrentLineHighlight::None => None,
4275 };
4276 if let Some(range) = highlight_h_range {
4277 let active_line_bg = cx.theme().colors().editor_active_line_background;
4278 let bounds = Bounds {
4279 origin: point(
4280 range.start,
4281 layout.hitbox.origin.y
4282 + (start_row.as_f32() - scroll_top)
4283 * layout.position_map.line_height,
4284 ),
4285 size: size(
4286 range.end - range.start,
4287 layout.position_map.line_height
4288 * (end_row - start_row.0 + 1) as f32,
4289 ),
4290 };
4291 window.paint_quad(fill(bounds, active_line_bg));
4292 }
4293 }
4294 }
4295
4296 let mut paint_highlight =
4297 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4298 let origin = point(
4299 layout.hitbox.origin.x,
4300 layout.hitbox.origin.y
4301 + (highlight_row_start.as_f32() - scroll_top)
4302 * layout.position_map.line_height,
4303 );
4304 let size = size(
4305 layout.hitbox.size.width,
4306 layout.position_map.line_height
4307 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4308 );
4309 window.paint_quad(fill(Bounds { origin, size }, color));
4310 };
4311
4312 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4313 for (&new_row, &new_color) in &layout.highlighted_rows {
4314 match &mut current_paint {
4315 Some((current_color, current_range)) => {
4316 let current_color = *current_color;
4317 let new_range_started = current_color != new_color
4318 || current_range.end.next_row() != new_row;
4319 if new_range_started {
4320 paint_highlight(
4321 current_range.start,
4322 current_range.end,
4323 current_color,
4324 );
4325 current_paint = Some((new_color, new_row..new_row));
4326 continue;
4327 } else {
4328 current_range.end = current_range.end.next_row();
4329 }
4330 }
4331 None => current_paint = Some((new_color, new_row..new_row)),
4332 };
4333 }
4334 if let Some((color, range)) = current_paint {
4335 paint_highlight(range.start, range.end, color);
4336 }
4337
4338 let scroll_left =
4339 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4340
4341 for (wrap_position, active) in layout.wrap_guides.iter() {
4342 let x = (layout.text_hitbox.origin.x
4343 + *wrap_position
4344 + layout.position_map.em_width / 2.)
4345 - scroll_left;
4346
4347 let show_scrollbars = {
4348 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4349
4350 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4351 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4352 };
4353
4354 if x < layout.text_hitbox.origin.x
4355 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4356 {
4357 continue;
4358 }
4359
4360 let color = if *active {
4361 cx.theme().colors().editor_active_wrap_guide
4362 } else {
4363 cx.theme().colors().editor_wrap_guide
4364 };
4365 window.paint_quad(fill(
4366 Bounds {
4367 origin: point(x, layout.text_hitbox.origin.y),
4368 size: size(px(1.), layout.text_hitbox.size.height),
4369 },
4370 color,
4371 ));
4372 }
4373 }
4374 })
4375 }
4376
4377 fn paint_indent_guides(
4378 &mut self,
4379 layout: &mut EditorLayout,
4380 window: &mut Window,
4381 cx: &mut App,
4382 ) {
4383 let Some(indent_guides) = &layout.indent_guides else {
4384 return;
4385 };
4386
4387 let faded_color = |color: Hsla, alpha: f32| {
4388 let mut faded = color;
4389 faded.a = alpha;
4390 faded
4391 };
4392
4393 for indent_guide in indent_guides {
4394 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4395 let settings = indent_guide.settings;
4396
4397 // TODO fixed for now, expose them through themes later
4398 const INDENT_AWARE_ALPHA: f32 = 0.2;
4399 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4400 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4401 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4402
4403 let line_color = match (settings.coloring, indent_guide.active) {
4404 (IndentGuideColoring::Disabled, _) => None,
4405 (IndentGuideColoring::Fixed, false) => {
4406 Some(cx.theme().colors().editor_indent_guide)
4407 }
4408 (IndentGuideColoring::Fixed, true) => {
4409 Some(cx.theme().colors().editor_indent_guide_active)
4410 }
4411 (IndentGuideColoring::IndentAware, false) => {
4412 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4413 }
4414 (IndentGuideColoring::IndentAware, true) => {
4415 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4416 }
4417 };
4418
4419 let background_color = match (settings.background_coloring, indent_guide.active) {
4420 (IndentGuideBackgroundColoring::Disabled, _) => None,
4421 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4422 indent_accent_colors,
4423 INDENT_AWARE_BACKGROUND_ALPHA,
4424 )),
4425 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4426 indent_accent_colors,
4427 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4428 )),
4429 };
4430
4431 let requested_line_width = if indent_guide.active {
4432 settings.active_line_width
4433 } else {
4434 settings.line_width
4435 }
4436 .clamp(1, 10);
4437 let mut line_indicator_width = 0.;
4438 if let Some(color) = line_color {
4439 window.paint_quad(fill(
4440 Bounds {
4441 origin: indent_guide.origin,
4442 size: size(px(requested_line_width as f32), indent_guide.length),
4443 },
4444 color,
4445 ));
4446 line_indicator_width = requested_line_width as f32;
4447 }
4448
4449 if let Some(color) = background_color {
4450 let width = indent_guide.single_indent_width - px(line_indicator_width);
4451 window.paint_quad(fill(
4452 Bounds {
4453 origin: point(
4454 indent_guide.origin.x + px(line_indicator_width),
4455 indent_guide.origin.y,
4456 ),
4457 size: size(width, indent_guide.length),
4458 },
4459 color,
4460 ));
4461 }
4462 }
4463 }
4464
4465 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4466 let is_singleton = self.editor.read(cx).is_singleton(cx);
4467
4468 let line_height = layout.position_map.line_height;
4469 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4470
4471 for LineNumberLayout {
4472 shaped_line,
4473 hitbox,
4474 display_row,
4475 } in layout.line_numbers.values()
4476 {
4477 let Some(hitbox) = hitbox else {
4478 continue;
4479 };
4480
4481 let is_active = layout.active_rows.contains_key(&display_row);
4482
4483 let color = if is_active {
4484 cx.theme().colors().editor_active_line_number
4485 } else if !is_singleton && hitbox.is_hovered(window) {
4486 cx.theme().colors().editor_hover_line_number
4487 } else {
4488 cx.theme().colors().editor_line_number
4489 };
4490
4491 let Some(line) = self
4492 .shape_line_number(shaped_line.text.clone(), color, window)
4493 .log_err()
4494 else {
4495 continue;
4496 };
4497 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4498 continue;
4499 };
4500 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4501 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4502 if is_singleton {
4503 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4504 } else {
4505 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4506 }
4507 }
4508 }
4509
4510 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4511 if layout.display_hunks.is_empty() {
4512 return;
4513 }
4514
4515 let line_height = layout.position_map.line_height;
4516 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4517 for (hunk, hitbox) in &layout.display_hunks {
4518 let hunk_to_paint = match hunk {
4519 DisplayDiffHunk::Folded { .. } => {
4520 let hunk_bounds = Self::diff_hunk_bounds(
4521 &layout.position_map.snapshot,
4522 line_height,
4523 layout.gutter_hitbox.bounds,
4524 hunk,
4525 );
4526 Some((
4527 hunk_bounds,
4528 cx.theme().status().modified,
4529 Corners::all(px(0.)),
4530 ))
4531 }
4532 DisplayDiffHunk::Unfolded {
4533 status,
4534 display_row_range,
4535 ..
4536 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4537 DiffHunkStatus::Added => (
4538 hunk_hitbox.bounds,
4539 cx.theme().status().created,
4540 Corners::all(px(0.)),
4541 ),
4542 DiffHunkStatus::Modified => (
4543 hunk_hitbox.bounds,
4544 cx.theme().status().modified,
4545 Corners::all(px(0.)),
4546 ),
4547 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4548 hunk_hitbox.bounds,
4549 cx.theme().status().deleted,
4550 Corners::all(px(0.)),
4551 ),
4552 DiffHunkStatus::Removed => (
4553 Bounds::new(
4554 point(
4555 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4556 hunk_hitbox.origin.y,
4557 ),
4558 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4559 ),
4560 cx.theme().status().deleted,
4561 Corners::all(1. * line_height),
4562 ),
4563 }),
4564 };
4565
4566 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4567 window.paint_quad(quad(
4568 hunk_bounds,
4569 corner_radii,
4570 background_color,
4571 Edges::default(),
4572 transparent_black(),
4573 ));
4574 }
4575 }
4576 });
4577 }
4578
4579 fn diff_hunk_bounds(
4580 snapshot: &EditorSnapshot,
4581 line_height: Pixels,
4582 gutter_bounds: Bounds<Pixels>,
4583 hunk: &DisplayDiffHunk,
4584 ) -> Bounds<Pixels> {
4585 let scroll_position = snapshot.scroll_position();
4586 let scroll_top = scroll_position.y * line_height;
4587 let gutter_strip_width = (0.275 * line_height).floor();
4588
4589 match hunk {
4590 DisplayDiffHunk::Folded { display_row, .. } => {
4591 let start_y = display_row.as_f32() * line_height - scroll_top;
4592 let end_y = start_y + line_height;
4593 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4594 let highlight_size = size(gutter_strip_width, end_y - start_y);
4595 Bounds::new(highlight_origin, highlight_size)
4596 }
4597 DisplayDiffHunk::Unfolded {
4598 display_row_range,
4599 status,
4600 ..
4601 } => {
4602 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4603 let row = display_row_range.start;
4604
4605 let offset = line_height / 2.;
4606 let start_y = row.as_f32() * line_height - offset - scroll_top;
4607 let end_y = start_y + line_height;
4608
4609 let width = (0.35 * line_height).floor();
4610 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4611 let highlight_size = size(width, end_y - start_y);
4612 Bounds::new(highlight_origin, highlight_size)
4613 } else {
4614 let start_row = display_row_range.start;
4615 let end_row = display_row_range.end;
4616 // If we're in a multibuffer, row range span might include an
4617 // excerpt header, so if we were to draw the marker straight away,
4618 // the hunk might include the rows of that header.
4619 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4620 // Instead, we simply check whether the range we're dealing with includes
4621 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4622 let end_row_in_current_excerpt = snapshot
4623 .blocks_in_range(start_row..end_row)
4624 .find_map(|(start_row, block)| {
4625 if matches!(block, Block::ExcerptBoundary { .. }) {
4626 Some(start_row)
4627 } else {
4628 None
4629 }
4630 })
4631 .unwrap_or(end_row);
4632
4633 let start_y = start_row.as_f32() * line_height - scroll_top;
4634 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4635
4636 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4637 let highlight_size = size(gutter_strip_width, end_y - start_y);
4638 Bounds::new(highlight_origin, highlight_size)
4639 }
4640 }
4641 }
4642 }
4643
4644 fn paint_gutter_indicators(
4645 &self,
4646 layout: &mut EditorLayout,
4647 window: &mut Window,
4648 cx: &mut App,
4649 ) {
4650 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4651 window.with_element_namespace("crease_toggles", |window| {
4652 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4653 crease_toggle.paint(window, cx);
4654 }
4655 });
4656
4657 for test_indicator in layout.test_indicators.iter_mut() {
4658 test_indicator.paint(window, cx);
4659 }
4660
4661 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4662 indicator.paint(window, cx);
4663 }
4664 });
4665 }
4666
4667 fn paint_gutter_highlights(
4668 &self,
4669 layout: &mut EditorLayout,
4670 window: &mut Window,
4671 cx: &mut App,
4672 ) {
4673 for (_, hunk_hitbox) in &layout.display_hunks {
4674 if let Some(hunk_hitbox) = hunk_hitbox {
4675 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4676 }
4677 }
4678
4679 let show_git_gutter = layout
4680 .position_map
4681 .snapshot
4682 .show_git_diff_gutter
4683 .unwrap_or_else(|| {
4684 matches!(
4685 ProjectSettings::get_global(cx).git.git_gutter,
4686 Some(GitGutterSetting::TrackedFiles)
4687 )
4688 });
4689 if show_git_gutter {
4690 Self::paint_diff_hunks(layout, window, cx)
4691 }
4692
4693 let highlight_width = 0.275 * layout.position_map.line_height;
4694 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4695 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4696 for (range, color) in &layout.highlighted_gutter_ranges {
4697 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4698 layout.visible_display_row_range.start - DisplayRow(1)
4699 } else {
4700 range.start.row()
4701 };
4702 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4703 layout.visible_display_row_range.end + DisplayRow(1)
4704 } else {
4705 range.end.row()
4706 };
4707
4708 let start_y = layout.gutter_hitbox.top()
4709 + start_row.0 as f32 * layout.position_map.line_height
4710 - layout.position_map.scroll_pixel_position.y;
4711 let end_y = layout.gutter_hitbox.top()
4712 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4713 - layout.position_map.scroll_pixel_position.y;
4714 let bounds = Bounds::from_corners(
4715 point(layout.gutter_hitbox.left(), start_y),
4716 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4717 );
4718 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4719 }
4720 });
4721 }
4722
4723 fn paint_blamed_display_rows(
4724 &self,
4725 layout: &mut EditorLayout,
4726 window: &mut Window,
4727 cx: &mut App,
4728 ) {
4729 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4730 return;
4731 };
4732
4733 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4734 for mut blame_element in blamed_display_rows.into_iter() {
4735 blame_element.paint(window, cx);
4736 }
4737 })
4738 }
4739
4740 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4741 window.with_content_mask(
4742 Some(ContentMask {
4743 bounds: layout.text_hitbox.bounds,
4744 }),
4745 |window| {
4746 let cursor_style = if self
4747 .editor
4748 .read(cx)
4749 .hovered_link_state
4750 .as_ref()
4751 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4752 {
4753 CursorStyle::PointingHand
4754 } else {
4755 CursorStyle::IBeam
4756 };
4757 window.set_cursor_style(cursor_style, &layout.text_hitbox);
4758
4759 let invisible_display_ranges = self.paint_highlights(layout, window);
4760 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4761 self.paint_redactions(layout, window);
4762 self.paint_cursors(layout, window, cx);
4763 self.paint_inline_blame(layout, window, cx);
4764 self.paint_diff_hunk_controls(layout, window, cx);
4765 window.with_element_namespace("crease_trailers", |window| {
4766 for trailer in layout.crease_trailers.iter_mut().flatten() {
4767 trailer.element.paint(window, cx);
4768 }
4769 });
4770 },
4771 )
4772 }
4773
4774 fn paint_highlights(
4775 &mut self,
4776 layout: &mut EditorLayout,
4777 window: &mut Window,
4778 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4779 window.paint_layer(layout.text_hitbox.bounds, |window| {
4780 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4781 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4782 for (range, color) in &layout.highlighted_ranges {
4783 self.paint_highlighted_range(
4784 range.clone(),
4785 *color,
4786 Pixels::ZERO,
4787 line_end_overshoot,
4788 layout,
4789 window,
4790 );
4791 }
4792
4793 let corner_radius = 0.15 * layout.position_map.line_height;
4794
4795 for (player_color, selections) in &layout.selections {
4796 for selection in selections.iter() {
4797 self.paint_highlighted_range(
4798 selection.range.clone(),
4799 player_color.selection,
4800 corner_radius,
4801 corner_radius * 2.,
4802 layout,
4803 window,
4804 );
4805
4806 if selection.is_local && !selection.range.is_empty() {
4807 invisible_display_ranges.push(selection.range.clone());
4808 }
4809 }
4810 }
4811 invisible_display_ranges
4812 })
4813 }
4814
4815 fn paint_lines(
4816 &mut self,
4817 invisible_display_ranges: &[Range<DisplayPoint>],
4818 layout: &mut EditorLayout,
4819 window: &mut Window,
4820 cx: &mut App,
4821 ) {
4822 let whitespace_setting = self
4823 .editor
4824 .read(cx)
4825 .buffer
4826 .read(cx)
4827 .settings_at(0, cx)
4828 .show_whitespaces;
4829
4830 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4831 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4832 line_with_invisibles.draw(
4833 layout,
4834 row,
4835 layout.content_origin,
4836 whitespace_setting,
4837 invisible_display_ranges,
4838 window,
4839 cx,
4840 )
4841 }
4842
4843 for line_element in &mut layout.line_elements {
4844 line_element.paint(window, cx);
4845 }
4846 }
4847
4848 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4849 if layout.redacted_ranges.is_empty() {
4850 return;
4851 }
4852
4853 let line_end_overshoot = layout.line_end_overshoot();
4854
4855 // A softer than perfect black
4856 let redaction_color = gpui::rgb(0x0e1111);
4857
4858 window.paint_layer(layout.text_hitbox.bounds, |window| {
4859 for range in layout.redacted_ranges.iter() {
4860 self.paint_highlighted_range(
4861 range.clone(),
4862 redaction_color.into(),
4863 Pixels::ZERO,
4864 line_end_overshoot,
4865 layout,
4866 window,
4867 );
4868 }
4869 });
4870 }
4871
4872 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4873 for cursor in &mut layout.visible_cursors {
4874 cursor.paint(layout.content_origin, window, cx);
4875 }
4876 }
4877
4878 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4879 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4880
4881 if let Some(scrollbar_layout) = scrollbar_x {
4882 let hitbox = scrollbar_layout.hitbox.clone();
4883 let text_unit_size = scrollbar_layout.text_unit_size;
4884 let visible_range = scrollbar_layout.visible_range.clone();
4885 let thumb_bounds = scrollbar_layout.thumb_bounds();
4886
4887 if scrollbar_layout.visible {
4888 window.paint_layer(hitbox.bounds, |window| {
4889 window.paint_quad(quad(
4890 hitbox.bounds,
4891 Corners::default(),
4892 cx.theme().colors().scrollbar_track_background,
4893 Edges {
4894 top: Pixels::ZERO,
4895 right: Pixels::ZERO,
4896 bottom: Pixels::ZERO,
4897 left: Pixels::ZERO,
4898 },
4899 cx.theme().colors().scrollbar_track_border,
4900 ));
4901
4902 window.paint_quad(quad(
4903 thumb_bounds,
4904 Corners::default(),
4905 cx.theme().colors().scrollbar_thumb_background,
4906 Edges {
4907 top: Pixels::ZERO,
4908 right: Pixels::ZERO,
4909 bottom: Pixels::ZERO,
4910 left: ScrollbarLayout::BORDER_WIDTH,
4911 },
4912 cx.theme().colors().scrollbar_thumb_border,
4913 ));
4914 })
4915 }
4916
4917 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4918
4919 window.on_mouse_event({
4920 let editor = self.editor.clone();
4921
4922 // there may be a way to avoid this clone
4923 let hitbox = hitbox.clone();
4924
4925 let mut mouse_position = window.mouse_position();
4926 move |event: &MouseMoveEvent, phase, window, cx| {
4927 if phase == DispatchPhase::Capture {
4928 return;
4929 }
4930
4931 editor.update(cx, |editor, cx| {
4932 if event.pressed_button == Some(MouseButton::Left)
4933 && editor
4934 .scroll_manager
4935 .is_dragging_scrollbar(Axis::Horizontal)
4936 {
4937 let x = mouse_position.x;
4938 let new_x = event.position.x;
4939 if (hitbox.left()..hitbox.right()).contains(&x) {
4940 let mut position = editor.scroll_position(cx);
4941
4942 position.x += (new_x - x) / text_unit_size;
4943 if position.x < 0.0 {
4944 position.x = 0.0;
4945 }
4946 editor.set_scroll_position(position, window, cx);
4947 }
4948
4949 cx.stop_propagation();
4950 } else {
4951 editor.scroll_manager.set_is_dragging_scrollbar(
4952 Axis::Horizontal,
4953 false,
4954 cx,
4955 );
4956
4957 if hitbox.is_hovered(window) {
4958 editor.scroll_manager.show_scrollbar(window, cx);
4959 }
4960 }
4961 mouse_position = event.position;
4962 })
4963 }
4964 });
4965
4966 if self
4967 .editor
4968 .read(cx)
4969 .scroll_manager
4970 .is_dragging_scrollbar(Axis::Horizontal)
4971 {
4972 window.on_mouse_event({
4973 let editor = self.editor.clone();
4974 move |_: &MouseUpEvent, phase, _, cx| {
4975 if phase == DispatchPhase::Capture {
4976 return;
4977 }
4978
4979 editor.update(cx, |editor, cx| {
4980 editor.scroll_manager.set_is_dragging_scrollbar(
4981 Axis::Horizontal,
4982 false,
4983 cx,
4984 );
4985 cx.stop_propagation();
4986 });
4987 }
4988 });
4989 } else {
4990 window.on_mouse_event({
4991 let editor = self.editor.clone();
4992
4993 move |event: &MouseDownEvent, phase, window, cx| {
4994 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4995 return;
4996 }
4997
4998 editor.update(cx, |editor, cx| {
4999 editor.scroll_manager.set_is_dragging_scrollbar(
5000 Axis::Horizontal,
5001 true,
5002 cx,
5003 );
5004
5005 let x = event.position.x;
5006
5007 if x < thumb_bounds.left() || thumb_bounds.right() < x {
5008 let center_row =
5009 ((x - hitbox.left()) / text_unit_size).round() as u32;
5010 let top_row = center_row.saturating_sub(
5011 (visible_range.end - visible_range.start) as u32 / 2,
5012 );
5013
5014 let mut position = editor.scroll_position(cx);
5015 position.x = top_row as f32;
5016
5017 editor.set_scroll_position(position, window, cx);
5018 } else {
5019 editor.scroll_manager.show_scrollbar(window, cx);
5020 }
5021
5022 cx.stop_propagation();
5023 });
5024 }
5025 });
5026 }
5027 }
5028
5029 if let Some(scrollbar_layout) = scrollbar_y {
5030 let hitbox = scrollbar_layout.hitbox.clone();
5031 let text_unit_size = scrollbar_layout.text_unit_size;
5032 let visible_range = scrollbar_layout.visible_range.clone();
5033 let thumb_bounds = scrollbar_layout.thumb_bounds();
5034
5035 if scrollbar_layout.visible {
5036 window.paint_layer(hitbox.bounds, |window| {
5037 window.paint_quad(quad(
5038 hitbox.bounds,
5039 Corners::default(),
5040 cx.theme().colors().scrollbar_track_background,
5041 Edges {
5042 top: Pixels::ZERO,
5043 right: Pixels::ZERO,
5044 bottom: Pixels::ZERO,
5045 left: ScrollbarLayout::BORDER_WIDTH,
5046 },
5047 cx.theme().colors().scrollbar_track_border,
5048 ));
5049
5050 let fast_markers =
5051 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5052 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5053 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5054
5055 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5056 for marker in markers.iter().chain(&fast_markers) {
5057 let mut marker = marker.clone();
5058 marker.bounds.origin += hitbox.origin;
5059 window.paint_quad(marker);
5060 }
5061
5062 window.paint_quad(quad(
5063 thumb_bounds,
5064 Corners::default(),
5065 cx.theme().colors().scrollbar_thumb_background,
5066 Edges {
5067 top: Pixels::ZERO,
5068 right: Pixels::ZERO,
5069 bottom: Pixels::ZERO,
5070 left: ScrollbarLayout::BORDER_WIDTH,
5071 },
5072 cx.theme().colors().scrollbar_thumb_border,
5073 ));
5074 });
5075 }
5076
5077 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5078
5079 window.on_mouse_event({
5080 let editor = self.editor.clone();
5081
5082 let hitbox = hitbox.clone();
5083
5084 let mut mouse_position = window.mouse_position();
5085 move |event: &MouseMoveEvent, phase, window, cx| {
5086 if phase == DispatchPhase::Capture {
5087 return;
5088 }
5089
5090 editor.update(cx, |editor, cx| {
5091 if event.pressed_button == Some(MouseButton::Left)
5092 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5093 {
5094 let y = mouse_position.y;
5095 let new_y = event.position.y;
5096 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5097 let mut position = editor.scroll_position(cx);
5098 position.y += (new_y - y) / text_unit_size;
5099 if position.y < 0.0 {
5100 position.y = 0.0;
5101 }
5102 editor.set_scroll_position(position, window, cx);
5103 }
5104 } else {
5105 editor.scroll_manager.set_is_dragging_scrollbar(
5106 Axis::Vertical,
5107 false,
5108 cx,
5109 );
5110
5111 if hitbox.is_hovered(window) {
5112 editor.scroll_manager.show_scrollbar(window, cx);
5113 }
5114 }
5115 mouse_position = event.position;
5116 })
5117 }
5118 });
5119
5120 if self
5121 .editor
5122 .read(cx)
5123 .scroll_manager
5124 .is_dragging_scrollbar(Axis::Vertical)
5125 {
5126 window.on_mouse_event({
5127 let editor = self.editor.clone();
5128 move |_: &MouseUpEvent, phase, _, cx| {
5129 if phase == DispatchPhase::Capture {
5130 return;
5131 }
5132
5133 editor.update(cx, |editor, cx| {
5134 editor.scroll_manager.set_is_dragging_scrollbar(
5135 Axis::Vertical,
5136 false,
5137 cx,
5138 );
5139 cx.stop_propagation();
5140 });
5141 }
5142 });
5143 } else {
5144 window.on_mouse_event({
5145 let editor = self.editor.clone();
5146
5147 move |event: &MouseDownEvent, phase, window, cx| {
5148 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5149 return;
5150 }
5151
5152 editor.update(cx, |editor, cx| {
5153 editor.scroll_manager.set_is_dragging_scrollbar(
5154 Axis::Vertical,
5155 true,
5156 cx,
5157 );
5158
5159 let y = event.position.y;
5160 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5161 let center_row =
5162 ((y - hitbox.top()) / text_unit_size).round() as u32;
5163 let top_row = center_row.saturating_sub(
5164 (visible_range.end - visible_range.start) as u32 / 2,
5165 );
5166 let mut position = editor.scroll_position(cx);
5167 position.y = top_row as f32;
5168 editor.set_scroll_position(position, window, cx);
5169 } else {
5170 editor.scroll_manager.show_scrollbar(window, cx);
5171 }
5172
5173 cx.stop_propagation();
5174 });
5175 }
5176 });
5177 }
5178 }
5179 }
5180
5181 fn collect_fast_scrollbar_markers(
5182 &self,
5183 layout: &EditorLayout,
5184 scrollbar_layout: &ScrollbarLayout,
5185 cx: &mut App,
5186 ) -> Vec<PaintQuad> {
5187 const LIMIT: usize = 100;
5188 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5189 return vec![];
5190 }
5191 let cursor_ranges = layout
5192 .cursors
5193 .iter()
5194 .map(|(point, color)| ColoredRange {
5195 start: point.row(),
5196 end: point.row(),
5197 color: *color,
5198 })
5199 .collect_vec();
5200 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5201 }
5202
5203 fn refresh_slow_scrollbar_markers(
5204 &self,
5205 layout: &EditorLayout,
5206 scrollbar_layout: &ScrollbarLayout,
5207 window: &mut Window,
5208 cx: &mut App,
5209 ) {
5210 self.editor.update(cx, |editor, cx| {
5211 if !editor.is_singleton(cx)
5212 || !editor
5213 .scrollbar_marker_state
5214 .should_refresh(scrollbar_layout.hitbox.size)
5215 {
5216 return;
5217 }
5218
5219 let scrollbar_layout = scrollbar_layout.clone();
5220 let background_highlights = editor.background_highlights.clone();
5221 let snapshot = layout.position_map.snapshot.clone();
5222 let theme = cx.theme().clone();
5223 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5224
5225 editor.scrollbar_marker_state.dirty = false;
5226 editor.scrollbar_marker_state.pending_refresh =
5227 Some(cx.spawn_in(window, |editor, mut cx| async move {
5228 let scrollbar_size = scrollbar_layout.hitbox.size;
5229 let scrollbar_markers = cx
5230 .background_executor()
5231 .spawn(async move {
5232 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5233 let mut marker_quads = Vec::new();
5234 if scrollbar_settings.git_diff {
5235 let marker_row_ranges =
5236 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5237 let start_display_row =
5238 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5239 .to_display_point(&snapshot.display_snapshot)
5240 .row();
5241 let mut end_display_row =
5242 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5243 .to_display_point(&snapshot.display_snapshot)
5244 .row();
5245 if end_display_row != start_display_row {
5246 end_display_row.0 -= 1;
5247 }
5248 let color = match &hunk.status() {
5249 DiffHunkStatus::Added => theme.status().created,
5250 DiffHunkStatus::Modified => theme.status().modified,
5251 DiffHunkStatus::Removed => theme.status().deleted,
5252 };
5253 ColoredRange {
5254 start: start_display_row,
5255 end: end_display_row,
5256 color,
5257 }
5258 });
5259
5260 marker_quads.extend(
5261 scrollbar_layout
5262 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5263 );
5264 }
5265
5266 for (background_highlight_id, (_, background_ranges)) in
5267 background_highlights.iter()
5268 {
5269 let is_search_highlights = *background_highlight_id
5270 == TypeId::of::<BufferSearchHighlights>();
5271 let is_symbol_occurrences = *background_highlight_id
5272 == TypeId::of::<DocumentHighlightRead>()
5273 || *background_highlight_id
5274 == TypeId::of::<DocumentHighlightWrite>();
5275 if (is_search_highlights && scrollbar_settings.search_results)
5276 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5277 {
5278 let mut color = theme.status().info;
5279 if is_symbol_occurrences {
5280 color.fade_out(0.5);
5281 }
5282 let marker_row_ranges = background_ranges.iter().map(|range| {
5283 let display_start = range
5284 .start
5285 .to_display_point(&snapshot.display_snapshot);
5286 let display_end =
5287 range.end.to_display_point(&snapshot.display_snapshot);
5288 ColoredRange {
5289 start: display_start.row(),
5290 end: display_end.row(),
5291 color,
5292 }
5293 });
5294 marker_quads.extend(
5295 scrollbar_layout
5296 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5297 );
5298 }
5299 }
5300
5301 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5302 let diagnostics = snapshot
5303 .buffer_snapshot
5304 .diagnostics_in_range::<_, Point>(Point::zero()..max_point)
5305 // Don't show diagnostics the user doesn't care about
5306 .filter(|diagnostic| {
5307 match (
5308 scrollbar_settings.diagnostics,
5309 diagnostic.diagnostic.severity,
5310 ) {
5311 (ScrollbarDiagnostics::All, _) => true,
5312 (
5313 ScrollbarDiagnostics::Error,
5314 DiagnosticSeverity::ERROR,
5315 ) => true,
5316 (
5317 ScrollbarDiagnostics::Warning,
5318 DiagnosticSeverity::ERROR
5319 | DiagnosticSeverity::WARNING,
5320 ) => true,
5321 (
5322 ScrollbarDiagnostics::Information,
5323 DiagnosticSeverity::ERROR
5324 | DiagnosticSeverity::WARNING
5325 | DiagnosticSeverity::INFORMATION,
5326 ) => true,
5327 (_, _) => false,
5328 }
5329 })
5330 // We want to sort by severity, in order to paint the most severe diagnostics last.
5331 .sorted_by_key(|diagnostic| {
5332 std::cmp::Reverse(diagnostic.diagnostic.severity)
5333 });
5334
5335 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5336 let start_display = diagnostic
5337 .range
5338 .start
5339 .to_display_point(&snapshot.display_snapshot);
5340 let end_display = diagnostic
5341 .range
5342 .end
5343 .to_display_point(&snapshot.display_snapshot);
5344 let color = match diagnostic.diagnostic.severity {
5345 DiagnosticSeverity::ERROR => theme.status().error,
5346 DiagnosticSeverity::WARNING => theme.status().warning,
5347 DiagnosticSeverity::INFORMATION => theme.status().info,
5348 _ => theme.status().hint,
5349 };
5350 ColoredRange {
5351 start: start_display.row(),
5352 end: end_display.row(),
5353 color,
5354 }
5355 });
5356 marker_quads.extend(
5357 scrollbar_layout
5358 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5359 );
5360 }
5361
5362 Arc::from(marker_quads)
5363 })
5364 .await;
5365
5366 editor.update(&mut cx, |editor, cx| {
5367 editor.scrollbar_marker_state.markers = scrollbar_markers;
5368 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5369 editor.scrollbar_marker_state.pending_refresh = None;
5370 cx.notify();
5371 })?;
5372
5373 Ok(())
5374 }));
5375 });
5376 }
5377
5378 #[allow(clippy::too_many_arguments)]
5379 fn paint_highlighted_range(
5380 &self,
5381 range: Range<DisplayPoint>,
5382 color: Hsla,
5383 corner_radius: Pixels,
5384 line_end_overshoot: Pixels,
5385 layout: &EditorLayout,
5386 window: &mut Window,
5387 ) {
5388 let start_row = layout.visible_display_row_range.start;
5389 let end_row = layout.visible_display_row_range.end;
5390 if range.start != range.end {
5391 let row_range = if range.end.column() == 0 {
5392 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5393 } else {
5394 cmp::max(range.start.row(), start_row)
5395 ..cmp::min(range.end.row().next_row(), end_row)
5396 };
5397
5398 let highlighted_range = HighlightedRange {
5399 color,
5400 line_height: layout.position_map.line_height,
5401 corner_radius,
5402 start_y: layout.content_origin.y
5403 + row_range.start.as_f32() * layout.position_map.line_height
5404 - layout.position_map.scroll_pixel_position.y,
5405 lines: row_range
5406 .iter_rows()
5407 .map(|row| {
5408 let line_layout =
5409 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5410 HighlightedRangeLine {
5411 start_x: if row == range.start.row() {
5412 layout.content_origin.x
5413 + line_layout.x_for_index(range.start.column() as usize)
5414 - layout.position_map.scroll_pixel_position.x
5415 } else {
5416 layout.content_origin.x
5417 - layout.position_map.scroll_pixel_position.x
5418 },
5419 end_x: if row == range.end.row() {
5420 layout.content_origin.x
5421 + line_layout.x_for_index(range.end.column() as usize)
5422 - layout.position_map.scroll_pixel_position.x
5423 } else {
5424 layout.content_origin.x + line_layout.width + line_end_overshoot
5425 - layout.position_map.scroll_pixel_position.x
5426 },
5427 }
5428 })
5429 .collect(),
5430 };
5431
5432 highlighted_range.paint(layout.text_hitbox.bounds, window);
5433 }
5434 }
5435
5436 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5437 if let Some(mut inline_blame) = layout.inline_blame.take() {
5438 window.paint_layer(layout.text_hitbox.bounds, |window| {
5439 inline_blame.paint(window, cx);
5440 })
5441 }
5442 }
5443
5444 fn paint_diff_hunk_controls(
5445 &mut self,
5446 layout: &mut EditorLayout,
5447 window: &mut Window,
5448 cx: &mut App,
5449 ) {
5450 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5451 diff_hunk_control.paint(window, cx);
5452 }
5453 }
5454
5455 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5456 for mut block in layout.blocks.drain(..) {
5457 block.element.paint(window, cx);
5458 }
5459 }
5460
5461 fn paint_inline_completion_popover(
5462 &mut self,
5463 layout: &mut EditorLayout,
5464 window: &mut Window,
5465 cx: &mut App,
5466 ) {
5467 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5468 inline_completion_popover.paint(window, cx);
5469 }
5470 }
5471
5472 fn paint_mouse_context_menu(
5473 &mut self,
5474 layout: &mut EditorLayout,
5475 window: &mut Window,
5476 cx: &mut App,
5477 ) {
5478 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5479 mouse_context_menu.paint(window, cx);
5480 }
5481 }
5482
5483 fn paint_scroll_wheel_listener(
5484 &mut self,
5485 layout: &EditorLayout,
5486 window: &mut Window,
5487 cx: &mut App,
5488 ) {
5489 window.on_mouse_event({
5490 let position_map = layout.position_map.clone();
5491 let editor = self.editor.clone();
5492 let hitbox = layout.hitbox.clone();
5493 let mut delta = ScrollDelta::default();
5494
5495 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5496 // accidentally turn off their scrolling.
5497 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5498
5499 move |event: &ScrollWheelEvent, phase, window, cx| {
5500 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5501 delta = delta.coalesce(event.delta);
5502 editor.update(cx, |editor, cx| {
5503 let position_map: &PositionMap = &position_map;
5504
5505 let line_height = position_map.line_height;
5506 let max_glyph_width = position_map.em_width;
5507 let (delta, axis) = match delta {
5508 gpui::ScrollDelta::Pixels(mut pixels) => {
5509 //Trackpad
5510 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5511 (pixels, axis)
5512 }
5513
5514 gpui::ScrollDelta::Lines(lines) => {
5515 //Not trackpad
5516 let pixels =
5517 point(lines.x * max_glyph_width, lines.y * line_height);
5518 (pixels, None)
5519 }
5520 };
5521
5522 let current_scroll_position = position_map.snapshot.scroll_position();
5523 let x = (current_scroll_position.x * max_glyph_width
5524 - (delta.x * scroll_sensitivity))
5525 / max_glyph_width;
5526 let y = (current_scroll_position.y * line_height
5527 - (delta.y * scroll_sensitivity))
5528 / line_height;
5529 let mut scroll_position =
5530 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5531 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5532 if forbid_vertical_scroll {
5533 scroll_position.y = current_scroll_position.y;
5534 }
5535
5536 if scroll_position != current_scroll_position {
5537 editor.scroll(scroll_position, axis, window, cx);
5538 cx.stop_propagation();
5539 } else if y < 0. {
5540 // Due to clamping, we may fail to detect cases of overscroll to the top;
5541 // We want the scroll manager to get an update in such cases and detect the change of direction
5542 // on the next frame.
5543 cx.notify();
5544 }
5545 });
5546 }
5547 }
5548 });
5549 }
5550
5551 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5552 self.paint_scroll_wheel_listener(layout, window, cx);
5553
5554 window.on_mouse_event({
5555 let position_map = layout.position_map.clone();
5556 let editor = self.editor.clone();
5557 let text_hitbox = layout.text_hitbox.clone();
5558 let gutter_hitbox = layout.gutter_hitbox.clone();
5559 let multi_buffer_range =
5560 layout
5561 .display_hunks
5562 .iter()
5563 .find_map(|(hunk, hunk_hitbox)| match hunk {
5564 DisplayDiffHunk::Folded { .. } => None,
5565 DisplayDiffHunk::Unfolded {
5566 multi_buffer_range, ..
5567 } => {
5568 if hunk_hitbox
5569 .as_ref()
5570 .map(|hitbox| hitbox.is_hovered(window))
5571 .unwrap_or(false)
5572 {
5573 Some(multi_buffer_range.clone())
5574 } else {
5575 None
5576 }
5577 }
5578 });
5579 let line_numbers = layout.line_numbers.clone();
5580
5581 move |event: &MouseDownEvent, phase, window, cx| {
5582 if phase == DispatchPhase::Bubble {
5583 match event.button {
5584 MouseButton::Left => editor.update(cx, |editor, cx| {
5585 let pending_mouse_down = editor
5586 .pending_mouse_down
5587 .get_or_insert_with(Default::default)
5588 .clone();
5589
5590 *pending_mouse_down.borrow_mut() = Some(event.clone());
5591
5592 Self::mouse_left_down(
5593 editor,
5594 event,
5595 multi_buffer_range.clone(),
5596 &position_map,
5597 &text_hitbox,
5598 &gutter_hitbox,
5599 line_numbers.as_ref(),
5600 window,
5601 cx,
5602 );
5603 }),
5604 MouseButton::Right => editor.update(cx, |editor, cx| {
5605 Self::mouse_right_down(
5606 editor,
5607 event,
5608 &position_map,
5609 &text_hitbox,
5610 window,
5611 cx,
5612 );
5613 }),
5614 MouseButton::Middle => editor.update(cx, |editor, cx| {
5615 Self::mouse_middle_down(
5616 editor,
5617 event,
5618 &position_map,
5619 &text_hitbox,
5620 window,
5621 cx,
5622 );
5623 }),
5624 _ => {}
5625 };
5626 }
5627 }
5628 });
5629
5630 window.on_mouse_event({
5631 let editor = self.editor.clone();
5632 let position_map = layout.position_map.clone();
5633 let text_hitbox = layout.text_hitbox.clone();
5634
5635 move |event: &MouseUpEvent, phase, window, cx| {
5636 if phase == DispatchPhase::Bubble {
5637 editor.update(cx, |editor, cx| {
5638 Self::mouse_up(editor, event, &position_map, &text_hitbox, window, cx)
5639 });
5640 }
5641 }
5642 });
5643
5644 window.on_mouse_event({
5645 let editor = self.editor.clone();
5646 let position_map = layout.position_map.clone();
5647 let text_hitbox = layout.text_hitbox.clone();
5648
5649 let mut captured_mouse_down = None;
5650
5651 move |event: &MouseUpEvent, phase, window, cx| match phase {
5652 // Clear the pending mouse down during the capture phase,
5653 // so that it happens even if another event handler stops
5654 // propagation.
5655 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5656 let pending_mouse_down = editor
5657 .pending_mouse_down
5658 .get_or_insert_with(Default::default)
5659 .clone();
5660
5661 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5662 if pending_mouse_down.is_some() && text_hitbox.is_hovered(window) {
5663 captured_mouse_down = pending_mouse_down.take();
5664 window.refresh();
5665 }
5666 }),
5667 // Fire click handlers during the bubble phase.
5668 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5669 if let Some(mouse_down) = captured_mouse_down.take() {
5670 let event = ClickEvent {
5671 down: mouse_down,
5672 up: event.clone(),
5673 };
5674 Self::click(editor, &event, &position_map, &text_hitbox, window, cx);
5675 }
5676 }),
5677 }
5678 });
5679
5680 window.on_mouse_event({
5681 let position_map = layout.position_map.clone();
5682 let editor = self.editor.clone();
5683 let text_hitbox = layout.text_hitbox.clone();
5684 let gutter_hitbox = layout.gutter_hitbox.clone();
5685
5686 move |event: &MouseMoveEvent, phase, window, cx| {
5687 if phase == DispatchPhase::Bubble {
5688 editor.update(cx, |editor, cx| {
5689 if editor.hover_state.focused(window, cx) {
5690 return;
5691 }
5692 if event.pressed_button == Some(MouseButton::Left)
5693 || event.pressed_button == Some(MouseButton::Middle)
5694 {
5695 Self::mouse_dragged(
5696 editor,
5697 event,
5698 &position_map,
5699 text_hitbox.bounds,
5700 window,
5701 cx,
5702 )
5703 }
5704
5705 Self::mouse_moved(
5706 editor,
5707 event,
5708 &position_map,
5709 &text_hitbox,
5710 &gutter_hitbox,
5711 window,
5712 cx,
5713 )
5714 });
5715 }
5716 }
5717 });
5718 }
5719
5720 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5721 bounds.top_right().x - self.style.scrollbar_width
5722 }
5723
5724 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5725 let style = &self.style;
5726 let font_size = style.text.font_size.to_pixels(window.rem_size());
5727 let layout = window
5728 .text_system()
5729 .shape_line(
5730 SharedString::from(" ".repeat(column)),
5731 font_size,
5732 &[TextRun {
5733 len: column,
5734 font: style.text.font(),
5735 color: Hsla::default(),
5736 background_color: None,
5737 underline: None,
5738 strikethrough: None,
5739 }],
5740 )
5741 .unwrap();
5742
5743 layout.width
5744 }
5745
5746 fn max_line_number_width(
5747 &self,
5748 snapshot: &EditorSnapshot,
5749 window: &mut Window,
5750 cx: &mut App,
5751 ) -> Pixels {
5752 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5753 self.column_pixels(digit_count, window, cx)
5754 }
5755
5756 fn shape_line_number(
5757 &self,
5758 text: SharedString,
5759 color: Hsla,
5760 window: &mut Window,
5761 ) -> anyhow::Result<ShapedLine> {
5762 let run = TextRun {
5763 len: text.len(),
5764 font: self.style.text.font(),
5765 color,
5766 background_color: None,
5767 underline: None,
5768 strikethrough: None,
5769 };
5770 window.text_system().shape_line(
5771 text,
5772 self.style.text.font_size.to_pixels(window.rem_size()),
5773 &[run],
5774 )
5775 }
5776}
5777
5778fn header_jump_data(
5779 snapshot: &EditorSnapshot,
5780 block_row_start: DisplayRow,
5781 height: u32,
5782 for_excerpt: &ExcerptInfo,
5783) -> JumpData {
5784 let range = &for_excerpt.range;
5785 let buffer = &for_excerpt.buffer;
5786 let jump_anchor = range
5787 .primary
5788 .as_ref()
5789 .map_or(range.context.start, |primary| primary.start);
5790
5791 let excerpt_start = range.context.start;
5792 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5793 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
5794 0
5795 } else {
5796 let excerpt_start_row = language::ToPoint::to_point(&excerpt_start, buffer).row;
5797 jump_position.row - excerpt_start_row
5798 };
5799
5800 let line_offset_from_top = (block_row_start.0 + height + offset_from_excerpt_start)
5801 .saturating_sub(
5802 snapshot
5803 .scroll_anchor
5804 .scroll_position(&snapshot.display_snapshot)
5805 .y as u32,
5806 );
5807
5808 JumpData::MultiBufferPoint {
5809 excerpt_id: for_excerpt.id,
5810 anchor: jump_anchor,
5811 position: language::ToPoint::to_point(&jump_anchor, buffer),
5812 line_offset_from_top,
5813 }
5814}
5815
5816fn inline_completion_accept_indicator(
5817 label: impl Into<SharedString>,
5818 icon: Option<IconName>,
5819 focus_handle: FocusHandle,
5820 window: &Window,
5821 cx: &App,
5822) -> AnyElement {
5823 let bindings = window.bindings_for_action_in(&crate::AcceptInlineCompletion, &focus_handle);
5824 let Some(accept_keystroke) = bindings
5825 .last()
5826 .and_then(|binding| binding.keystrokes().first())
5827 else {
5828 return div().into_any();
5829 };
5830
5831 let accept_key = h_flex()
5832 .px_0p5()
5833 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5834 .text_size(TextSize::XSmall.rems(cx))
5835 .text_color(cx.theme().colors().text)
5836 .gap_1()
5837 .children(ui::render_modifiers(
5838 &accept_keystroke.modifiers,
5839 PlatformStyle::platform(),
5840 Some(Color::Default),
5841 ))
5842 .child(accept_keystroke.key.clone());
5843
5844 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5845
5846 h_flex()
5847 .py_0p5()
5848 .pl_1()
5849 .pr(padding_right)
5850 .gap_1()
5851 .bg(cx.theme().colors().text_accent.opacity(0.15))
5852 .border_1()
5853 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5854 .rounded_md()
5855 .shadow_sm()
5856 .child(accept_key)
5857 .child(Label::new(label).size(LabelSize::Small))
5858 .when_some(icon, |element, icon| {
5859 element.child(
5860 div()
5861 .mt(px(1.5))
5862 .child(Icon::new(icon).size(IconSize::Small)),
5863 )
5864 })
5865 .into_any()
5866}
5867
5868#[allow(clippy::too_many_arguments)]
5869fn prepaint_gutter_button(
5870 button: IconButton,
5871 row: DisplayRow,
5872 line_height: Pixels,
5873 gutter_dimensions: &GutterDimensions,
5874 scroll_pixel_position: gpui::Point<Pixels>,
5875 gutter_hitbox: &Hitbox,
5876 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5877 window: &mut Window,
5878 cx: &mut App,
5879) -> AnyElement {
5880 let mut button = button.into_any_element();
5881 let available_space = size(
5882 AvailableSpace::MinContent,
5883 AvailableSpace::Definite(line_height),
5884 );
5885 let indicator_size = button.layout_as_root(available_space, window, cx);
5886
5887 let blame_width = gutter_dimensions.git_blame_entries_width;
5888 let gutter_width = rows_with_hunk_bounds
5889 .get(&row)
5890 .map(|bounds| bounds.size.width);
5891 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5892
5893 let mut x = left_offset;
5894 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5895 - indicator_size.width
5896 - left_offset;
5897 x += available_width / 2.;
5898
5899 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5900 y += (line_height - indicator_size.height) / 2.;
5901
5902 button.prepaint_as_root(
5903 gutter_hitbox.origin + point(x, y),
5904 available_space,
5905 window,
5906 cx,
5907 );
5908 button
5909}
5910
5911fn render_inline_blame_entry(
5912 blame: &gpui::Entity<GitBlame>,
5913 blame_entry: BlameEntry,
5914 style: &EditorStyle,
5915 workspace: Option<WeakEntity<Workspace>>,
5916 cx: &mut App,
5917) -> AnyElement {
5918 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5919
5920 let author = blame_entry.author.as_deref().unwrap_or_default();
5921 let summary_enabled = ProjectSettings::get_global(cx)
5922 .git
5923 .show_inline_commit_summary();
5924
5925 let text = match blame_entry.summary.as_ref() {
5926 Some(summary) if summary_enabled => {
5927 format!("{}, {} - {}", author, relative_timestamp, summary)
5928 }
5929 _ => format!("{}, {}", author, relative_timestamp),
5930 };
5931
5932 let details = blame.read(cx).details_for_entry(&blame_entry);
5933
5934 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5935
5936 h_flex()
5937 .id("inline-blame")
5938 .w_full()
5939 .font_family(style.text.font().family)
5940 .text_color(cx.theme().status().hint)
5941 .line_height(style.text.line_height)
5942 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5943 .child(text)
5944 .gap_2()
5945 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5946 .into_any()
5947}
5948
5949fn render_blame_entry(
5950 ix: usize,
5951 blame: &gpui::Entity<GitBlame>,
5952 blame_entry: BlameEntry,
5953 style: &EditorStyle,
5954 last_used_color: &mut Option<(PlayerColor, Oid)>,
5955 editor: Entity<Editor>,
5956 cx: &mut App,
5957) -> AnyElement {
5958 let mut sha_color = cx
5959 .theme()
5960 .players()
5961 .color_for_participant(blame_entry.sha.into());
5962 // If the last color we used is the same as the one we get for this line, but
5963 // the commit SHAs are different, then we try again to get a different color.
5964 match *last_used_color {
5965 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5966 let index: u32 = blame_entry.sha.into();
5967 sha_color = cx.theme().players().color_for_participant(index + 1);
5968 }
5969 _ => {}
5970 };
5971 last_used_color.replace((sha_color, blame_entry.sha));
5972
5973 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5974
5975 let short_commit_id = blame_entry.sha.display_short();
5976
5977 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5978 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5979
5980 let details = blame.read(cx).details_for_entry(&blame_entry);
5981
5982 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5983
5984 let tooltip =
5985 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5986
5987 h_flex()
5988 .w_full()
5989 .justify_between()
5990 .font_family(style.text.font().family)
5991 .line_height(style.text.line_height)
5992 .id(("blame", ix))
5993 .text_color(cx.theme().status().hint)
5994 .pr_2()
5995 .gap_2()
5996 .child(
5997 h_flex()
5998 .items_center()
5999 .gap_2()
6000 .child(div().text_color(sha_color.cursor).child(short_commit_id))
6001 .child(name),
6002 )
6003 .child(relative_timestamp)
6004 .on_mouse_down(MouseButton::Right, {
6005 let blame_entry = blame_entry.clone();
6006 let details = details.clone();
6007 move |event, window, cx| {
6008 deploy_blame_entry_context_menu(
6009 &blame_entry,
6010 details.as_ref(),
6011 editor.clone(),
6012 event.position,
6013 window,
6014 cx,
6015 );
6016 }
6017 })
6018 .hover(|style| style.bg(cx.theme().colors().element_hover))
6019 .when_some(
6020 details.and_then(|details| details.permalink),
6021 |this, url| {
6022 let url = url.clone();
6023 this.cursor_pointer().on_click(move |_, _, cx| {
6024 cx.stop_propagation();
6025 cx.open_url(url.as_str())
6026 })
6027 },
6028 )
6029 .hoverable_tooltip(move |_, _| tooltip.clone().into())
6030 .into_any()
6031}
6032
6033fn deploy_blame_entry_context_menu(
6034 blame_entry: &BlameEntry,
6035 details: Option<&CommitDetails>,
6036 editor: Entity<Editor>,
6037 position: gpui::Point<Pixels>,
6038 window: &mut Window,
6039 cx: &mut App,
6040) {
6041 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6042 let sha = format!("{}", blame_entry.sha);
6043 menu.on_blur_subscription(Subscription::new(|| {}))
6044 .entry("Copy commit SHA", None, move |_, cx| {
6045 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6046 })
6047 .when_some(
6048 details.and_then(|details| details.permalink.clone()),
6049 |this, url| {
6050 this.entry("Open permalink", None, move |_, cx| {
6051 cx.open_url(url.as_str())
6052 })
6053 },
6054 )
6055 });
6056
6057 editor.update(cx, move |editor, cx| {
6058 editor.mouse_context_menu = Some(MouseContextMenu::new(
6059 MenuPosition::PinnedToScreen(position),
6060 context_menu,
6061 window,
6062 cx,
6063 ));
6064 cx.notify();
6065 });
6066}
6067
6068#[derive(Debug)]
6069pub(crate) struct LineWithInvisibles {
6070 fragments: SmallVec<[LineFragment; 1]>,
6071 invisibles: Vec<Invisible>,
6072 len: usize,
6073 width: Pixels,
6074 font_size: Pixels,
6075}
6076
6077#[allow(clippy::large_enum_variant)]
6078enum LineFragment {
6079 Text(ShapedLine),
6080 Element {
6081 element: Option<AnyElement>,
6082 size: Size<Pixels>,
6083 len: usize,
6084 },
6085}
6086
6087impl fmt::Debug for LineFragment {
6088 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6089 match self {
6090 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6091 LineFragment::Element { size, len, .. } => f
6092 .debug_struct("Element")
6093 .field("size", size)
6094 .field("len", len)
6095 .finish(),
6096 }
6097 }
6098}
6099
6100impl LineWithInvisibles {
6101 #[allow(clippy::too_many_arguments)]
6102 fn from_chunks<'a>(
6103 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6104 editor_style: &EditorStyle,
6105 max_line_len: usize,
6106 max_line_count: usize,
6107 editor_mode: EditorMode,
6108 text_width: Pixels,
6109 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6110 window: &mut Window,
6111 cx: &mut App,
6112 ) -> Vec<Self> {
6113 let text_style = &editor_style.text;
6114 let mut layouts = Vec::with_capacity(max_line_count);
6115 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6116 let mut line = String::new();
6117 let mut invisibles = Vec::new();
6118 let mut width = Pixels::ZERO;
6119 let mut len = 0;
6120 let mut styles = Vec::new();
6121 let mut non_whitespace_added = false;
6122 let mut row = 0;
6123 let mut line_exceeded_max_len = false;
6124 let font_size = text_style.font_size.to_pixels(window.rem_size());
6125
6126 let ellipsis = SharedString::from("⋯");
6127
6128 for highlighted_chunk in chunks.chain([HighlightedChunk {
6129 text: "\n",
6130 style: None,
6131 is_tab: false,
6132 replacement: None,
6133 }]) {
6134 if let Some(replacement) = highlighted_chunk.replacement {
6135 if !line.is_empty() {
6136 let shaped_line = window
6137 .text_system()
6138 .shape_line(line.clone().into(), font_size, &styles)
6139 .unwrap();
6140 width += shaped_line.width;
6141 len += shaped_line.len;
6142 fragments.push(LineFragment::Text(shaped_line));
6143 line.clear();
6144 styles.clear();
6145 }
6146
6147 match replacement {
6148 ChunkReplacement::Renderer(renderer) => {
6149 let available_width = if renderer.constrain_width {
6150 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6151 ellipsis.clone()
6152 } else {
6153 SharedString::from(Arc::from(highlighted_chunk.text))
6154 };
6155 let shaped_line = window
6156 .text_system()
6157 .shape_line(
6158 chunk,
6159 font_size,
6160 &[text_style.to_run(highlighted_chunk.text.len())],
6161 )
6162 .unwrap();
6163 AvailableSpace::Definite(shaped_line.width)
6164 } else {
6165 AvailableSpace::MinContent
6166 };
6167
6168 let mut element = (renderer.render)(&mut ChunkRendererContext {
6169 context: cx,
6170 window,
6171 max_width: text_width,
6172 });
6173 let line_height = text_style.line_height_in_pixels(window.rem_size());
6174 let size = element.layout_as_root(
6175 size(available_width, AvailableSpace::Definite(line_height)),
6176 window,
6177 cx,
6178 );
6179
6180 width += size.width;
6181 len += highlighted_chunk.text.len();
6182 fragments.push(LineFragment::Element {
6183 element: Some(element),
6184 size,
6185 len: highlighted_chunk.text.len(),
6186 });
6187 }
6188 ChunkReplacement::Str(x) => {
6189 let text_style = if let Some(style) = highlighted_chunk.style {
6190 Cow::Owned(text_style.clone().highlight(style))
6191 } else {
6192 Cow::Borrowed(text_style)
6193 };
6194
6195 let run = TextRun {
6196 len: x.len(),
6197 font: text_style.font(),
6198 color: text_style.color,
6199 background_color: text_style.background_color,
6200 underline: text_style.underline,
6201 strikethrough: text_style.strikethrough,
6202 };
6203 let line_layout = window
6204 .text_system()
6205 .shape_line(x, font_size, &[run])
6206 .unwrap()
6207 .with_len(highlighted_chunk.text.len());
6208
6209 width += line_layout.width;
6210 len += highlighted_chunk.text.len();
6211 fragments.push(LineFragment::Text(line_layout))
6212 }
6213 }
6214 } else {
6215 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6216 if ix > 0 {
6217 let shaped_line = window
6218 .text_system()
6219 .shape_line(line.clone().into(), font_size, &styles)
6220 .unwrap();
6221 width += shaped_line.width;
6222 len += shaped_line.len;
6223 fragments.push(LineFragment::Text(shaped_line));
6224 layouts.push(Self {
6225 width: mem::take(&mut width),
6226 len: mem::take(&mut len),
6227 fragments: mem::take(&mut fragments),
6228 invisibles: std::mem::take(&mut invisibles),
6229 font_size,
6230 });
6231
6232 line.clear();
6233 styles.clear();
6234 row += 1;
6235 line_exceeded_max_len = false;
6236 non_whitespace_added = false;
6237 if row == max_line_count {
6238 return layouts;
6239 }
6240 }
6241
6242 if !line_chunk.is_empty() && !line_exceeded_max_len {
6243 let text_style = if let Some(style) = highlighted_chunk.style {
6244 Cow::Owned(text_style.clone().highlight(style))
6245 } else {
6246 Cow::Borrowed(text_style)
6247 };
6248
6249 if line.len() + line_chunk.len() > max_line_len {
6250 let mut chunk_len = max_line_len - line.len();
6251 while !line_chunk.is_char_boundary(chunk_len) {
6252 chunk_len -= 1;
6253 }
6254 line_chunk = &line_chunk[..chunk_len];
6255 line_exceeded_max_len = true;
6256 }
6257
6258 styles.push(TextRun {
6259 len: line_chunk.len(),
6260 font: text_style.font(),
6261 color: text_style.color,
6262 background_color: text_style.background_color,
6263 underline: text_style.underline,
6264 strikethrough: text_style.strikethrough,
6265 });
6266
6267 if editor_mode == EditorMode::Full {
6268 // Line wrap pads its contents with fake whitespaces,
6269 // avoid printing them
6270 let is_soft_wrapped = is_row_soft_wrapped(row);
6271 if highlighted_chunk.is_tab {
6272 if non_whitespace_added || !is_soft_wrapped {
6273 invisibles.push(Invisible::Tab {
6274 line_start_offset: line.len(),
6275 line_end_offset: line.len() + line_chunk.len(),
6276 });
6277 }
6278 } else {
6279 invisibles.extend(line_chunk.char_indices().filter_map(
6280 |(index, c)| {
6281 let is_whitespace = c.is_whitespace();
6282 non_whitespace_added |= !is_whitespace;
6283 if is_whitespace
6284 && (non_whitespace_added || !is_soft_wrapped)
6285 {
6286 Some(Invisible::Whitespace {
6287 line_offset: line.len() + index,
6288 })
6289 } else {
6290 None
6291 }
6292 },
6293 ))
6294 }
6295 }
6296
6297 line.push_str(line_chunk);
6298 }
6299 }
6300 }
6301 }
6302
6303 layouts
6304 }
6305
6306 #[allow(clippy::too_many_arguments)]
6307 fn prepaint(
6308 &mut self,
6309 line_height: Pixels,
6310 scroll_pixel_position: gpui::Point<Pixels>,
6311 row: DisplayRow,
6312 content_origin: gpui::Point<Pixels>,
6313 line_elements: &mut SmallVec<[AnyElement; 1]>,
6314 window: &mut Window,
6315 cx: &mut App,
6316 ) {
6317 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6318 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6319 for fragment in &mut self.fragments {
6320 match fragment {
6321 LineFragment::Text(line) => {
6322 fragment_origin.x += line.width;
6323 }
6324 LineFragment::Element { element, size, .. } => {
6325 let mut element = element
6326 .take()
6327 .expect("you can't prepaint LineWithInvisibles twice");
6328
6329 // Center the element vertically within the line.
6330 let mut element_origin = fragment_origin;
6331 element_origin.y += (line_height - size.height) / 2.;
6332 element.prepaint_at(element_origin, window, cx);
6333 line_elements.push(element);
6334
6335 fragment_origin.x += size.width;
6336 }
6337 }
6338 }
6339 }
6340
6341 #[allow(clippy::too_many_arguments)]
6342 fn draw(
6343 &self,
6344 layout: &EditorLayout,
6345 row: DisplayRow,
6346 content_origin: gpui::Point<Pixels>,
6347 whitespace_setting: ShowWhitespaceSetting,
6348 selection_ranges: &[Range<DisplayPoint>],
6349 window: &mut Window,
6350 cx: &mut App,
6351 ) {
6352 let line_height = layout.position_map.line_height;
6353 let line_y = line_height
6354 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6355
6356 let mut fragment_origin =
6357 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6358
6359 for fragment in &self.fragments {
6360 match fragment {
6361 LineFragment::Text(line) => {
6362 line.paint(fragment_origin, line_height, window, cx)
6363 .log_err();
6364 fragment_origin.x += line.width;
6365 }
6366 LineFragment::Element { size, .. } => {
6367 fragment_origin.x += size.width;
6368 }
6369 }
6370 }
6371
6372 self.draw_invisibles(
6373 selection_ranges,
6374 layout,
6375 content_origin,
6376 line_y,
6377 row,
6378 line_height,
6379 whitespace_setting,
6380 window,
6381 cx,
6382 );
6383 }
6384
6385 #[allow(clippy::too_many_arguments)]
6386 fn draw_invisibles(
6387 &self,
6388 selection_ranges: &[Range<DisplayPoint>],
6389 layout: &EditorLayout,
6390 content_origin: gpui::Point<Pixels>,
6391 line_y: Pixels,
6392 row: DisplayRow,
6393 line_height: Pixels,
6394 whitespace_setting: ShowWhitespaceSetting,
6395 window: &mut Window,
6396 cx: &mut App,
6397 ) {
6398 let extract_whitespace_info = |invisible: &Invisible| {
6399 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6400 Invisible::Tab {
6401 line_start_offset,
6402 line_end_offset,
6403 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6404 Invisible::Whitespace { line_offset } => {
6405 (*line_offset, line_offset + 1, &layout.space_invisible)
6406 }
6407 };
6408
6409 let x_offset = self.x_for_index(token_offset);
6410 let invisible_offset =
6411 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6412 let origin = content_origin
6413 + gpui::point(
6414 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6415 line_y,
6416 );
6417
6418 (
6419 [token_offset, token_end_offset],
6420 Box::new(move |window: &mut Window, cx: &mut App| {
6421 invisible_symbol
6422 .paint(origin, line_height, window, cx)
6423 .log_err();
6424 }),
6425 )
6426 };
6427
6428 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6429 match whitespace_setting {
6430 ShowWhitespaceSetting::None => (),
6431 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6432 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6433 let invisible_point = DisplayPoint::new(row, start as u32);
6434 if !selection_ranges
6435 .iter()
6436 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6437 {
6438 return;
6439 }
6440
6441 paint(window, cx);
6442 }),
6443
6444 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6445 // - It is a tab
6446 // - It is adjacent to an edge (start or end)
6447 // - It is adjacent to a whitespace (left or right)
6448 ShowWhitespaceSetting::Boundary => {
6449 // 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
6450 // the above cases.
6451 // Note: We zip in the original `invisibles` to check for tab equality
6452 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6453 for (([start, end], paint), invisible) in
6454 invisible_iter.zip_eq(self.invisibles.iter())
6455 {
6456 let should_render = match (&last_seen, invisible) {
6457 (_, Invisible::Tab { .. }) => true,
6458 (Some((_, last_end, _)), _) => *last_end == start,
6459 _ => false,
6460 };
6461
6462 if should_render || start == 0 || end == self.len {
6463 paint(window, cx);
6464
6465 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6466 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6467 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6468 // Note that we need to make sure that the last one is actually adjacent
6469 if !should_render_last && last_end == start {
6470 paint_last(window, cx);
6471 }
6472 }
6473 }
6474
6475 // Manually render anything within a selection
6476 let invisible_point = DisplayPoint::new(row, start as u32);
6477 if selection_ranges.iter().any(|region| {
6478 region.start <= invisible_point && invisible_point < region.end
6479 }) {
6480 paint(window, cx);
6481 }
6482
6483 last_seen = Some((should_render, end, paint));
6484 }
6485 }
6486 }
6487 }
6488
6489 pub fn x_for_index(&self, index: usize) -> Pixels {
6490 let mut fragment_start_x = Pixels::ZERO;
6491 let mut fragment_start_index = 0;
6492
6493 for fragment in &self.fragments {
6494 match fragment {
6495 LineFragment::Text(shaped_line) => {
6496 let fragment_end_index = fragment_start_index + shaped_line.len;
6497 if index < fragment_end_index {
6498 return fragment_start_x
6499 + shaped_line.x_for_index(index - fragment_start_index);
6500 }
6501 fragment_start_x += shaped_line.width;
6502 fragment_start_index = fragment_end_index;
6503 }
6504 LineFragment::Element { len, size, .. } => {
6505 let fragment_end_index = fragment_start_index + len;
6506 if index < fragment_end_index {
6507 return fragment_start_x;
6508 }
6509 fragment_start_x += size.width;
6510 fragment_start_index = fragment_end_index;
6511 }
6512 }
6513 }
6514
6515 fragment_start_x
6516 }
6517
6518 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6519 let mut fragment_start_x = Pixels::ZERO;
6520 let mut fragment_start_index = 0;
6521
6522 for fragment in &self.fragments {
6523 match fragment {
6524 LineFragment::Text(shaped_line) => {
6525 let fragment_end_x = fragment_start_x + shaped_line.width;
6526 if x < fragment_end_x {
6527 return Some(
6528 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6529 );
6530 }
6531 fragment_start_x = fragment_end_x;
6532 fragment_start_index += shaped_line.len;
6533 }
6534 LineFragment::Element { len, size, .. } => {
6535 let fragment_end_x = fragment_start_x + size.width;
6536 if x < fragment_end_x {
6537 return Some(fragment_start_index);
6538 }
6539 fragment_start_index += len;
6540 fragment_start_x = fragment_end_x;
6541 }
6542 }
6543 }
6544
6545 None
6546 }
6547
6548 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6549 let mut fragment_start_index = 0;
6550
6551 for fragment in &self.fragments {
6552 match fragment {
6553 LineFragment::Text(shaped_line) => {
6554 let fragment_end_index = fragment_start_index + shaped_line.len;
6555 if index < fragment_end_index {
6556 return shaped_line.font_id_for_index(index - fragment_start_index);
6557 }
6558 fragment_start_index = fragment_end_index;
6559 }
6560 LineFragment::Element { len, .. } => {
6561 let fragment_end_index = fragment_start_index + len;
6562 if index < fragment_end_index {
6563 return None;
6564 }
6565 fragment_start_index = fragment_end_index;
6566 }
6567 }
6568 }
6569
6570 None
6571 }
6572}
6573
6574#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6575enum Invisible {
6576 /// A tab character
6577 ///
6578 /// A tab character is internally represented by spaces (configured by the user's tab width)
6579 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6580 /// adjacency checks.
6581 Tab {
6582 line_start_offset: usize,
6583 line_end_offset: usize,
6584 },
6585 Whitespace {
6586 line_offset: usize,
6587 },
6588}
6589
6590impl EditorElement {
6591 /// Returns the rem size to use when rendering the [`EditorElement`].
6592 ///
6593 /// This allows UI elements to scale based on the `buffer_font_size`.
6594 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6595 match self.editor.read(cx).mode {
6596 EditorMode::Full => {
6597 let buffer_font_size = self.style.text.font_size;
6598 match buffer_font_size {
6599 AbsoluteLength::Pixels(pixels) => {
6600 let rem_size_scale = {
6601 // Our default UI font size is 14px on a 16px base scale.
6602 // This means the default UI font size is 0.875rems.
6603 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6604
6605 // We then determine the delta between a single rem and the default font
6606 // size scale.
6607 let default_font_size_delta = 1. - default_font_size_scale;
6608
6609 // Finally, we add this delta to 1rem to get the scale factor that
6610 // should be used to scale up the UI.
6611 1. + default_font_size_delta
6612 };
6613
6614 Some(pixels * rem_size_scale)
6615 }
6616 AbsoluteLength::Rems(rems) => {
6617 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6618 }
6619 }
6620 }
6621 // We currently use single-line and auto-height editors in UI contexts,
6622 // so we don't want to scale everything with the buffer font size, as it
6623 // ends up looking off.
6624 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6625 }
6626 }
6627}
6628
6629impl Element for EditorElement {
6630 type RequestLayoutState = ();
6631 type PrepaintState = EditorLayout;
6632
6633 fn id(&self) -> Option<ElementId> {
6634 None
6635 }
6636
6637 fn request_layout(
6638 &mut self,
6639 _: Option<&GlobalElementId>,
6640 window: &mut Window,
6641 cx: &mut App,
6642 ) -> (gpui::LayoutId, ()) {
6643 let rem_size = self.rem_size(cx);
6644 window.with_rem_size(rem_size, |window| {
6645 self.editor.update(cx, |editor, cx| {
6646 editor.set_style(self.style.clone(), window, cx);
6647
6648 let layout_id = match editor.mode {
6649 EditorMode::SingleLine { auto_width } => {
6650 let rem_size = window.rem_size();
6651
6652 let height = self.style.text.line_height_in_pixels(rem_size);
6653 if auto_width {
6654 let editor_handle = cx.entity().clone();
6655 let style = self.style.clone();
6656 window.request_measured_layout(
6657 Style::default(),
6658 move |_, _, window, cx| {
6659 let editor_snapshot = editor_handle
6660 .update(cx, |editor, cx| editor.snapshot(window, cx));
6661 let line = Self::layout_lines(
6662 DisplayRow(0)..DisplayRow(1),
6663 &editor_snapshot,
6664 &style,
6665 px(f32::MAX),
6666 |_| false, // Single lines never soft wrap
6667 window,
6668 cx,
6669 )
6670 .pop()
6671 .unwrap();
6672
6673 let font_id =
6674 window.text_system().resolve_font(&style.text.font());
6675 let font_size =
6676 style.text.font_size.to_pixels(window.rem_size());
6677 let em_width =
6678 window.text_system().em_width(font_id, font_size).unwrap();
6679
6680 size(line.width + em_width, height)
6681 },
6682 )
6683 } else {
6684 let mut style = Style::default();
6685 style.size.height = height.into();
6686 style.size.width = relative(1.).into();
6687 window.request_layout(style, None, cx)
6688 }
6689 }
6690 EditorMode::AutoHeight { max_lines } => {
6691 let editor_handle = cx.entity().clone();
6692 let max_line_number_width =
6693 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6694 window.request_measured_layout(
6695 Style::default(),
6696 move |known_dimensions, available_space, window, cx| {
6697 editor_handle
6698 .update(cx, |editor, cx| {
6699 compute_auto_height_layout(
6700 editor,
6701 max_lines,
6702 max_line_number_width,
6703 known_dimensions,
6704 available_space.width,
6705 window,
6706 cx,
6707 )
6708 })
6709 .unwrap_or_default()
6710 },
6711 )
6712 }
6713 EditorMode::Full => {
6714 let mut style = Style::default();
6715 style.size.width = relative(1.).into();
6716 style.size.height = relative(1.).into();
6717 window.request_layout(style, None, cx)
6718 }
6719 };
6720
6721 (layout_id, ())
6722 })
6723 })
6724 }
6725
6726 fn prepaint(
6727 &mut self,
6728 _: Option<&GlobalElementId>,
6729 bounds: Bounds<Pixels>,
6730 _: &mut Self::RequestLayoutState,
6731 window: &mut Window,
6732 cx: &mut App,
6733 ) -> Self::PrepaintState {
6734 let text_style = TextStyleRefinement {
6735 font_size: Some(self.style.text.font_size),
6736 line_height: Some(self.style.text.line_height),
6737 ..Default::default()
6738 };
6739 let focus_handle = self.editor.focus_handle(cx);
6740 window.set_view_id(self.editor.entity_id());
6741 window.set_focus_handle(&focus_handle, cx);
6742
6743 let rem_size = self.rem_size(cx);
6744 window.with_rem_size(rem_size, |window| {
6745 window.with_text_style(Some(text_style), |window| {
6746 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6747 let mut snapshot = self
6748 .editor
6749 .update(cx, |editor, cx| editor.snapshot(window, cx));
6750 let style = self.style.clone();
6751
6752 let font_id = window.text_system().resolve_font(&style.text.font());
6753 let font_size = style.text.font_size.to_pixels(window.rem_size());
6754 let line_height = style.text.line_height_in_pixels(window.rem_size());
6755 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6756 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6757
6758 let letter_size = size(em_width, line_height);
6759
6760 let gutter_dimensions = snapshot
6761 .gutter_dimensions(
6762 font_id,
6763 font_size,
6764 self.max_line_number_width(&snapshot, window, cx),
6765 cx,
6766 )
6767 .unwrap_or_default();
6768 let text_width = bounds.size.width - gutter_dimensions.width;
6769
6770 let editor_width = text_width - gutter_dimensions.margin - em_width;
6771
6772 snapshot = self.editor.update(cx, |editor, cx| {
6773 editor.last_bounds = Some(bounds);
6774 editor.gutter_dimensions = gutter_dimensions;
6775 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6776
6777 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6778 snapshot
6779 } else {
6780 let wrap_width = match editor.soft_wrap_mode(cx) {
6781 SoftWrap::GitDiff => None,
6782 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6783 SoftWrap::EditorWidth => Some(editor_width),
6784 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6785 SoftWrap::Bounded(column) => {
6786 Some(editor_width.min(column as f32 * em_advance))
6787 }
6788 };
6789
6790 if editor.set_wrap_width(wrap_width, cx) {
6791 editor.snapshot(window, cx)
6792 } else {
6793 snapshot
6794 }
6795 }
6796 });
6797
6798 let wrap_guides = self
6799 .editor
6800 .read(cx)
6801 .wrap_guides(cx)
6802 .iter()
6803 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6804 .collect::<SmallVec<[_; 2]>>();
6805
6806 let hitbox = window.insert_hitbox(bounds, false);
6807 let gutter_hitbox =
6808 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6809 let text_hitbox = window.insert_hitbox(
6810 Bounds {
6811 origin: gutter_hitbox.top_right(),
6812 size: size(text_width, bounds.size.height),
6813 },
6814 false,
6815 );
6816 // Offset the content_bounds from the text_bounds by the gutter margin (which
6817 // is roughly half a character wide) to make hit testing work more like how we want.
6818 let content_origin =
6819 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6820
6821 let scrollbar_bounds =
6822 Bounds::from_corners(content_origin, bounds.bottom_right());
6823
6824 let height_in_lines = scrollbar_bounds.size.height / line_height;
6825
6826 // NOTE: The max row number in the current file, minus one
6827 let max_row = snapshot.max_point().row().as_f32();
6828
6829 // NOTE: The max scroll position for the top of the window
6830 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6831 (max_row - height_in_lines + 1.).max(0.)
6832 } else {
6833 let settings = EditorSettings::get_global(cx);
6834 match settings.scroll_beyond_last_line {
6835 ScrollBeyondLastLine::OnePage => max_row,
6836 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6837 ScrollBeyondLastLine::VerticalScrollMargin => {
6838 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6839 .max(0.)
6840 }
6841 }
6842 };
6843
6844 // TODO: Autoscrolling for both axes
6845 let mut autoscroll_request = None;
6846 let mut autoscroll_containing_element = false;
6847 let mut autoscroll_horizontally = false;
6848 self.editor.update(cx, |editor, cx| {
6849 autoscroll_request = editor.autoscroll_request();
6850 autoscroll_containing_element =
6851 autoscroll_request.is_some() || editor.has_pending_selection();
6852 // TODO: Is this horizontal or vertical?!
6853 autoscroll_horizontally = editor.autoscroll_vertically(
6854 bounds,
6855 line_height,
6856 max_scroll_top,
6857 window,
6858 cx,
6859 );
6860 snapshot = editor.snapshot(window, cx);
6861 });
6862
6863 let mut scroll_position = snapshot.scroll_position();
6864 // The scroll position is a fractional point, the whole number of which represents
6865 // the top of the window in terms of display rows.
6866 let start_row = DisplayRow(scroll_position.y as u32);
6867 let max_row = snapshot.max_point().row();
6868 let end_row = cmp::min(
6869 (scroll_position.y + height_in_lines).ceil() as u32,
6870 max_row.next_row().0,
6871 );
6872 let end_row = DisplayRow(end_row);
6873
6874 let row_infos = snapshot
6875 .row_infos(start_row)
6876 .take((start_row..end_row).len())
6877 .collect::<Vec<RowInfo>>();
6878 let is_row_soft_wrapped = |row: usize| {
6879 row_infos
6880 .get(row)
6881 .map_or(true, |info| info.buffer_row.is_none())
6882 };
6883
6884 let start_anchor = if start_row == Default::default() {
6885 Anchor::min()
6886 } else {
6887 snapshot.buffer_snapshot.anchor_before(
6888 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6889 )
6890 };
6891 let end_anchor = if end_row > max_row {
6892 Anchor::max()
6893 } else {
6894 snapshot.buffer_snapshot.anchor_before(
6895 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6896 )
6897 };
6898
6899 let mut highlighted_rows = self
6900 .editor
6901 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6902
6903 for (ix, row_info) in row_infos.iter().enumerate() {
6904 let color = match row_info.diff_status {
6905 Some(DiffHunkStatus::Added) => style.status.created_background,
6906 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6907 _ => continue,
6908 };
6909 highlighted_rows
6910 .entry(start_row + DisplayRow(ix as u32))
6911 .or_insert(color);
6912 }
6913
6914 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6915 start_anchor..end_anchor,
6916 &snapshot.display_snapshot,
6917 cx.theme().colors(),
6918 );
6919 let highlighted_gutter_ranges =
6920 self.editor.read(cx).gutter_highlights_in_range(
6921 start_anchor..end_anchor,
6922 &snapshot.display_snapshot,
6923 cx,
6924 );
6925
6926 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6927 start_anchor..end_anchor,
6928 &snapshot.display_snapshot,
6929 cx,
6930 );
6931
6932 let (local_selections, selected_buffer_ids): (
6933 Vec<Selection<Point>>,
6934 Vec<BufferId>,
6935 ) = self.editor.update(cx, |editor, cx| {
6936 let all_selections = editor.selections.all::<Point>(cx);
6937 let selected_buffer_ids = if editor.is_singleton(cx) {
6938 Vec::new()
6939 } else {
6940 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6941
6942 for selection in all_selections {
6943 for buffer_id in snapshot
6944 .buffer_snapshot
6945 .buffer_ids_for_range(selection.range())
6946 {
6947 if selected_buffer_ids.last() != Some(&buffer_id) {
6948 selected_buffer_ids.push(buffer_id);
6949 }
6950 }
6951 }
6952
6953 selected_buffer_ids
6954 };
6955
6956 let mut selections = editor
6957 .selections
6958 .disjoint_in_range(start_anchor..end_anchor, cx);
6959 selections.extend(editor.selections.pending(cx));
6960
6961 (selections, selected_buffer_ids)
6962 });
6963
6964 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6965 start_anchor,
6966 end_anchor,
6967 &local_selections,
6968 &snapshot,
6969 start_row,
6970 end_row,
6971 window,
6972 cx,
6973 );
6974
6975 let line_numbers = self.layout_line_numbers(
6976 Some(&gutter_hitbox),
6977 gutter_dimensions,
6978 line_height,
6979 scroll_position,
6980 start_row..end_row,
6981 &row_infos,
6982 newest_selection_head,
6983 &snapshot,
6984 window,
6985 cx,
6986 );
6987
6988 let mut crease_toggles =
6989 window.with_element_namespace("crease_toggles", |window| {
6990 self.layout_crease_toggles(
6991 start_row..end_row,
6992 &row_infos,
6993 &active_rows,
6994 &snapshot,
6995 window,
6996 cx,
6997 )
6998 });
6999 let crease_trailers =
7000 window.with_element_namespace("crease_trailers", |window| {
7001 self.layout_crease_trailers(
7002 row_infos.iter().copied(),
7003 &snapshot,
7004 window,
7005 cx,
7006 )
7007 });
7008
7009 let display_hunks = self.layout_gutter_diff_hunks(
7010 line_height,
7011 &gutter_hitbox,
7012 start_row..end_row,
7013 &snapshot,
7014 window,
7015 cx,
7016 );
7017
7018 let mut line_layouts = Self::layout_lines(
7019 start_row..end_row,
7020 &snapshot,
7021 &self.style,
7022 editor_width,
7023 is_row_soft_wrapped,
7024 window,
7025 cx,
7026 );
7027
7028 let longest_line_blame_width = self
7029 .editor
7030 .update(cx, |editor, cx| {
7031 if !editor.show_git_blame_inline {
7032 return None;
7033 }
7034 let blame = editor.blame.as_ref()?;
7035 let blame_entry = blame
7036 .update(cx, |blame, cx| {
7037 let row_infos =
7038 snapshot.row_infos(snapshot.longest_row()).next()?;
7039 blame.blame_for_rows(&[row_infos], cx).next()
7040 })
7041 .flatten()?;
7042 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7043 let mut element = render_inline_blame_entry(
7044 blame,
7045 blame_entry,
7046 &style,
7047 workspace,
7048 cx,
7049 );
7050 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7051 Some(
7052 element
7053 .layout_as_root(AvailableSpace::min_size(), window, cx)
7054 .width
7055 + inline_blame_padding,
7056 )
7057 })
7058 .unwrap_or(Pixels::ZERO);
7059
7060 let longest_line_width = layout_line(
7061 snapshot.longest_row(),
7062 &snapshot,
7063 &style,
7064 editor_width,
7065 is_row_soft_wrapped,
7066 window,
7067 cx,
7068 )
7069 .width;
7070
7071 let scrollbar_range_data = ScrollbarRangeData::new(
7072 scrollbar_bounds,
7073 letter_size,
7074 &snapshot,
7075 longest_line_width,
7076 longest_line_blame_width,
7077 &style,
7078 cx,
7079 );
7080
7081 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7082 let mut scroll_width = scroll_range_bounds.size.width;
7083
7084 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7085 snapshot.sticky_header_excerpt(start_row)
7086 } else {
7087 None
7088 };
7089 let sticky_header_excerpt_id =
7090 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7091
7092 let blocks = window.with_element_namespace("blocks", |window| {
7093 self.render_blocks(
7094 start_row..end_row,
7095 &snapshot,
7096 &hitbox,
7097 &text_hitbox,
7098 editor_width,
7099 &mut scroll_width,
7100 &gutter_dimensions,
7101 em_width,
7102 gutter_dimensions.full_width(),
7103 line_height,
7104 &line_layouts,
7105 &local_selections,
7106 &selected_buffer_ids,
7107 is_row_soft_wrapped,
7108 sticky_header_excerpt_id,
7109 window,
7110 cx,
7111 )
7112 });
7113 let mut blocks = match blocks {
7114 Ok(blocks) => blocks,
7115 Err(resized_blocks) => {
7116 self.editor.update(cx, |editor, cx| {
7117 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7118 });
7119 return self.prepaint(None, bounds, &mut (), window, cx);
7120 }
7121 };
7122
7123 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7124 window.with_element_namespace("blocks", |window| {
7125 self.layout_sticky_buffer_header(
7126 sticky_header_excerpt,
7127 scroll_position.y,
7128 line_height,
7129 &snapshot,
7130 &hitbox,
7131 &selected_buffer_ids,
7132 window,
7133 cx,
7134 )
7135 })
7136 });
7137
7138 let start_buffer_row =
7139 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7140 let end_buffer_row =
7141 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7142
7143 let scroll_max = point(
7144 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7145 max_row.as_f32(),
7146 );
7147
7148 self.editor.update(cx, |editor, cx| {
7149 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7150
7151 let autoscrolled = if autoscroll_horizontally {
7152 editor.autoscroll_horizontally(
7153 start_row,
7154 editor_width - (letter_size.width / 2.0),
7155 scroll_width,
7156 em_width,
7157 &line_layouts,
7158 cx,
7159 )
7160 } else {
7161 false
7162 };
7163
7164 if clamped || autoscrolled {
7165 snapshot = editor.snapshot(window, cx);
7166 scroll_position = snapshot.scroll_position();
7167 }
7168 });
7169
7170 let scroll_pixel_position = point(
7171 scroll_position.x * em_width,
7172 scroll_position.y * line_height,
7173 );
7174
7175 let indent_guides = self.layout_indent_guides(
7176 content_origin,
7177 text_hitbox.origin,
7178 start_buffer_row..end_buffer_row,
7179 scroll_pixel_position,
7180 line_height,
7181 &snapshot,
7182 window,
7183 cx,
7184 );
7185
7186 let crease_trailers =
7187 window.with_element_namespace("crease_trailers", |window| {
7188 self.prepaint_crease_trailers(
7189 crease_trailers,
7190 &line_layouts,
7191 line_height,
7192 content_origin,
7193 scroll_pixel_position,
7194 em_width,
7195 window,
7196 cx,
7197 )
7198 });
7199
7200 let mut inline_blame = None;
7201 if let Some(newest_selection_head) = newest_selection_head {
7202 let display_row = newest_selection_head.row();
7203 if (start_row..end_row).contains(&display_row) {
7204 let line_ix = display_row.minus(start_row) as usize;
7205 let row_info = &row_infos[line_ix];
7206 let line_layout = &line_layouts[line_ix];
7207 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7208 inline_blame = self.layout_inline_blame(
7209 display_row,
7210 row_info,
7211 line_layout,
7212 crease_trailer_layout,
7213 em_width,
7214 content_origin,
7215 scroll_pixel_position,
7216 line_height,
7217 window,
7218 cx,
7219 );
7220 }
7221 }
7222
7223 let blamed_display_rows = self.layout_blame_entries(
7224 &row_infos,
7225 em_width,
7226 scroll_position,
7227 line_height,
7228 &gutter_hitbox,
7229 gutter_dimensions.git_blame_entries_width,
7230 window,
7231 cx,
7232 );
7233
7234 let scroll_max = point(
7235 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7236 max_scroll_top,
7237 );
7238
7239 self.editor.update(cx, |editor, cx| {
7240 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7241
7242 let autoscrolled = if autoscroll_horizontally {
7243 editor.autoscroll_horizontally(
7244 start_row,
7245 editor_width - (letter_size.width / 2.0),
7246 scroll_width,
7247 em_width,
7248 &line_layouts,
7249 cx,
7250 )
7251 } else {
7252 false
7253 };
7254
7255 if clamped || autoscrolled {
7256 snapshot = editor.snapshot(window, cx);
7257 scroll_position = snapshot.scroll_position();
7258 }
7259 });
7260
7261 let line_elements = self.prepaint_lines(
7262 start_row,
7263 &mut line_layouts,
7264 line_height,
7265 scroll_pixel_position,
7266 content_origin,
7267 window,
7268 cx,
7269 );
7270
7271 let mut block_start_rows = HashSet::default();
7272
7273 window.with_element_namespace("blocks", |window| {
7274 self.layout_blocks(
7275 &mut blocks,
7276 &mut block_start_rows,
7277 &hitbox,
7278 line_height,
7279 scroll_pixel_position,
7280 window,
7281 cx,
7282 );
7283 });
7284
7285 let cursors = self.collect_cursors(&snapshot, cx);
7286 let visible_row_range = start_row..end_row;
7287 let non_visible_cursors = cursors
7288 .iter()
7289 .any(move |c| !visible_row_range.contains(&c.0.row()));
7290
7291 let visible_cursors = self.layout_visible_cursors(
7292 &snapshot,
7293 &selections,
7294 &block_start_rows,
7295 start_row..end_row,
7296 &line_layouts,
7297 &text_hitbox,
7298 content_origin,
7299 scroll_position,
7300 scroll_pixel_position,
7301 line_height,
7302 em_width,
7303 em_advance,
7304 autoscroll_containing_element,
7305 window,
7306 cx,
7307 );
7308
7309 let scrollbars_layout = self.layout_scrollbars(
7310 &snapshot,
7311 scrollbar_range_data,
7312 scroll_position,
7313 non_visible_cursors,
7314 window,
7315 cx,
7316 );
7317
7318 let gutter_settings = EditorSettings::get_global(cx).gutter;
7319
7320 let rows_with_hunk_bounds = display_hunks
7321 .iter()
7322 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7323 .fold(
7324 HashMap::default(),
7325 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7326 match hunk {
7327 DisplayDiffHunk::Folded { display_row } => {
7328 rows_with_hunk_bounds.insert(*display_row, bounds);
7329 }
7330 DisplayDiffHunk::Unfolded {
7331 display_row_range, ..
7332 } => {
7333 for display_row in display_row_range.iter_rows() {
7334 rows_with_hunk_bounds.insert(display_row, bounds);
7335 }
7336 }
7337 }
7338 rows_with_hunk_bounds
7339 },
7340 );
7341 let mut code_actions_indicator = None;
7342 if let Some(newest_selection_head) = newest_selection_head {
7343 let newest_selection_point =
7344 newest_selection_head.to_point(&snapshot.display_snapshot);
7345
7346 if (start_row..end_row).contains(&newest_selection_head.row()) {
7347 self.layout_cursor_popovers(
7348 line_height,
7349 &text_hitbox,
7350 content_origin,
7351 start_row,
7352 scroll_pixel_position,
7353 &line_layouts,
7354 newest_selection_head,
7355 newest_selection_point,
7356 &style,
7357 window,
7358 cx,
7359 );
7360
7361 let show_code_actions = snapshot
7362 .show_code_actions
7363 .unwrap_or(gutter_settings.code_actions);
7364 if show_code_actions {
7365 let newest_selection_point =
7366 newest_selection_head.to_point(&snapshot.display_snapshot);
7367 if !snapshot
7368 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7369 {
7370 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7371 MultiBufferRow(newest_selection_point.row),
7372 );
7373 if let Some((buffer, range)) = buffer {
7374 let buffer_id = buffer.remote_id();
7375 let row = range.start.row;
7376 let has_test_indicator = self
7377 .editor
7378 .read(cx)
7379 .tasks
7380 .contains_key(&(buffer_id, row));
7381
7382 if !has_test_indicator {
7383 code_actions_indicator = self
7384 .layout_code_actions_indicator(
7385 line_height,
7386 newest_selection_head,
7387 scroll_pixel_position,
7388 &gutter_dimensions,
7389 &gutter_hitbox,
7390 &rows_with_hunk_bounds,
7391 window,
7392 cx,
7393 );
7394 }
7395 }
7396 }
7397 }
7398 }
7399 }
7400
7401 self.layout_gutter_menu(
7402 line_height,
7403 &text_hitbox,
7404 content_origin,
7405 scroll_pixel_position,
7406 gutter_dimensions.width - gutter_dimensions.left_padding,
7407 window,
7408 cx,
7409 );
7410
7411 let test_indicators = if gutter_settings.runnables {
7412 self.layout_run_indicators(
7413 line_height,
7414 start_row..end_row,
7415 scroll_pixel_position,
7416 &gutter_dimensions,
7417 &gutter_hitbox,
7418 &rows_with_hunk_bounds,
7419 &snapshot,
7420 window,
7421 cx,
7422 )
7423 } else {
7424 Vec::new()
7425 };
7426
7427 self.layout_signature_help(
7428 &hitbox,
7429 content_origin,
7430 scroll_pixel_position,
7431 newest_selection_head,
7432 start_row,
7433 &line_layouts,
7434 line_height,
7435 em_width,
7436 window,
7437 cx,
7438 );
7439
7440 if !cx.has_active_drag() {
7441 self.layout_hover_popovers(
7442 &snapshot,
7443 &hitbox,
7444 &text_hitbox,
7445 start_row..end_row,
7446 content_origin,
7447 scroll_pixel_position,
7448 &line_layouts,
7449 line_height,
7450 em_width,
7451 window,
7452 cx,
7453 );
7454 }
7455
7456 let inline_completion_popover = self.layout_inline_completion_popover(
7457 &text_hitbox.bounds,
7458 &snapshot,
7459 start_row..end_row,
7460 scroll_position.y,
7461 scroll_position.y + height_in_lines,
7462 &line_layouts,
7463 line_height,
7464 scroll_pixel_position,
7465 newest_selection_head,
7466 editor_width,
7467 &style,
7468 window,
7469 cx,
7470 );
7471
7472 let mouse_context_menu = self.layout_mouse_context_menu(
7473 &snapshot,
7474 start_row..end_row,
7475 content_origin,
7476 window,
7477 cx,
7478 );
7479
7480 window.with_element_namespace("crease_toggles", |window| {
7481 self.prepaint_crease_toggles(
7482 &mut crease_toggles,
7483 line_height,
7484 &gutter_dimensions,
7485 gutter_settings,
7486 scroll_pixel_position,
7487 &gutter_hitbox,
7488 window,
7489 cx,
7490 )
7491 });
7492
7493 let invisible_symbol_font_size = font_size / 2.;
7494 let tab_invisible = window
7495 .text_system()
7496 .shape_line(
7497 "→".into(),
7498 invisible_symbol_font_size,
7499 &[TextRun {
7500 len: "→".len(),
7501 font: self.style.text.font(),
7502 color: cx.theme().colors().editor_invisible,
7503 background_color: None,
7504 underline: None,
7505 strikethrough: None,
7506 }],
7507 )
7508 .unwrap();
7509 let space_invisible = window
7510 .text_system()
7511 .shape_line(
7512 "•".into(),
7513 invisible_symbol_font_size,
7514 &[TextRun {
7515 len: "•".len(),
7516 font: self.style.text.font(),
7517 color: cx.theme().colors().editor_invisible,
7518 background_color: None,
7519 underline: None,
7520 strikethrough: None,
7521 }],
7522 )
7523 .unwrap();
7524
7525 let mode = snapshot.mode;
7526
7527 let position_map = Rc::new(PositionMap {
7528 size: bounds.size,
7529 scroll_pixel_position,
7530 scroll_max,
7531 line_layouts,
7532 line_height,
7533 em_width,
7534 em_advance,
7535 snapshot,
7536 });
7537
7538 let hunk_controls = self.layout_diff_hunk_controls(
7539 start_row..end_row,
7540 &row_infos,
7541 &text_hitbox,
7542 &position_map,
7543 newest_selection_head,
7544 line_height,
7545 scroll_pixel_position,
7546 &display_hunks,
7547 self.editor.clone(),
7548 window,
7549 cx,
7550 );
7551
7552 EditorLayout {
7553 mode,
7554 position_map,
7555 visible_display_row_range: start_row..end_row,
7556 wrap_guides,
7557 indent_guides,
7558 hitbox,
7559 text_hitbox,
7560 gutter_hitbox,
7561 display_hunks,
7562 content_origin,
7563 scrollbars_layout,
7564 active_rows,
7565 highlighted_rows,
7566 highlighted_ranges,
7567 highlighted_gutter_ranges,
7568 redacted_ranges,
7569 line_elements,
7570 line_numbers,
7571 blamed_display_rows,
7572 inline_blame,
7573 blocks,
7574 cursors,
7575 visible_cursors,
7576 selections,
7577 inline_completion_popover,
7578 diff_hunk_controls: hunk_controls,
7579 mouse_context_menu,
7580 test_indicators,
7581 code_actions_indicator,
7582 crease_toggles,
7583 crease_trailers,
7584 tab_invisible,
7585 space_invisible,
7586 sticky_buffer_header,
7587 }
7588 })
7589 })
7590 })
7591 }
7592
7593 fn paint(
7594 &mut self,
7595 _: Option<&GlobalElementId>,
7596 bounds: Bounds<gpui::Pixels>,
7597 _: &mut Self::RequestLayoutState,
7598 layout: &mut Self::PrepaintState,
7599 window: &mut Window,
7600 cx: &mut App,
7601 ) {
7602 let focus_handle = self.editor.focus_handle(cx);
7603 let key_context = self
7604 .editor
7605 .update(cx, |editor, cx| editor.key_context(window, cx));
7606
7607 window.set_key_context(key_context);
7608 window.handle_input(
7609 &focus_handle,
7610 ElementInputHandler::new(bounds, self.editor.clone()),
7611 cx,
7612 );
7613 self.register_actions(window, cx);
7614 self.register_key_listeners(window, cx, layout);
7615
7616 let text_style = TextStyleRefinement {
7617 font_size: Some(self.style.text.font_size),
7618 line_height: Some(self.style.text.line_height),
7619 ..Default::default()
7620 };
7621 let rem_size = self.rem_size(cx);
7622 window.with_rem_size(rem_size, |window| {
7623 window.with_text_style(Some(text_style), |window| {
7624 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7625 self.paint_mouse_listeners(layout, window, cx);
7626 self.paint_background(layout, window, cx);
7627 self.paint_indent_guides(layout, window, cx);
7628
7629 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7630 self.paint_blamed_display_rows(layout, window, cx);
7631 self.paint_line_numbers(layout, window, cx);
7632 }
7633
7634 self.paint_text(layout, window, cx);
7635
7636 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7637 self.paint_gutter_highlights(layout, window, cx);
7638 self.paint_gutter_indicators(layout, window, cx);
7639 }
7640
7641 if !layout.blocks.is_empty() {
7642 window.with_element_namespace("blocks", |window| {
7643 self.paint_blocks(layout, window, cx);
7644 });
7645 }
7646
7647 window.with_element_namespace("blocks", |window| {
7648 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7649 sticky_header.paint(window, cx)
7650 }
7651 });
7652
7653 self.paint_scrollbars(layout, window, cx);
7654 self.paint_inline_completion_popover(layout, window, cx);
7655 self.paint_mouse_context_menu(layout, window, cx);
7656 });
7657 })
7658 })
7659 }
7660}
7661
7662pub(super) fn gutter_bounds(
7663 editor_bounds: Bounds<Pixels>,
7664 gutter_dimensions: GutterDimensions,
7665) -> Bounds<Pixels> {
7666 Bounds {
7667 origin: editor_bounds.origin,
7668 size: size(gutter_dimensions.width, editor_bounds.size.height),
7669 }
7670}
7671
7672struct ScrollbarRangeData {
7673 scrollbar_bounds: Bounds<Pixels>,
7674 scroll_range: Bounds<Pixels>,
7675 letter_size: Size<Pixels>,
7676}
7677
7678impl ScrollbarRangeData {
7679 pub fn new(
7680 scrollbar_bounds: Bounds<Pixels>,
7681 letter_size: Size<Pixels>,
7682 snapshot: &EditorSnapshot,
7683 longest_line_width: Pixels,
7684 longest_line_blame_width: Pixels,
7685 style: &EditorStyle,
7686
7687 cx: &mut App,
7688 ) -> ScrollbarRangeData {
7689 // TODO: Simplify this function down, it requires a lot of parameters
7690 let max_row = snapshot.max_point().row();
7691 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7692
7693 let scrollbar_width = style.scrollbar_width;
7694
7695 let settings = EditorSettings::get_global(cx);
7696 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7697 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7698 ScrollBeyondLastLine::Off => px(1.),
7699 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7700 };
7701
7702 let overscroll = size(
7703 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7704 letter_size.height * scroll_beyond_last_line,
7705 );
7706
7707 let scroll_range = Bounds {
7708 origin: scrollbar_bounds.origin,
7709 size: text_bounds_size + overscroll,
7710 };
7711
7712 ScrollbarRangeData {
7713 scrollbar_bounds,
7714 scroll_range,
7715 letter_size,
7716 }
7717 }
7718}
7719
7720impl IntoElement for EditorElement {
7721 type Element = Self;
7722
7723 fn into_element(self) -> Self::Element {
7724 self
7725 }
7726}
7727
7728pub struct EditorLayout {
7729 position_map: Rc<PositionMap>,
7730 hitbox: Hitbox,
7731 text_hitbox: Hitbox,
7732 gutter_hitbox: Hitbox,
7733 content_origin: gpui::Point<Pixels>,
7734 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7735 mode: EditorMode,
7736 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7737 indent_guides: Option<Vec<IndentGuideLayout>>,
7738 visible_display_row_range: Range<DisplayRow>,
7739 active_rows: BTreeMap<DisplayRow, bool>,
7740 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7741 line_elements: SmallVec<[AnyElement; 1]>,
7742 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7743 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7744 blamed_display_rows: Option<Vec<AnyElement>>,
7745 inline_blame: Option<AnyElement>,
7746 blocks: Vec<BlockLayout>,
7747 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7748 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7749 redacted_ranges: Vec<Range<DisplayPoint>>,
7750 cursors: Vec<(DisplayPoint, Hsla)>,
7751 visible_cursors: Vec<CursorLayout>,
7752 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7753 code_actions_indicator: Option<AnyElement>,
7754 test_indicators: Vec<AnyElement>,
7755 crease_toggles: Vec<Option<AnyElement>>,
7756 diff_hunk_controls: Vec<AnyElement>,
7757 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7758 inline_completion_popover: Option<AnyElement>,
7759 mouse_context_menu: Option<AnyElement>,
7760 tab_invisible: ShapedLine,
7761 space_invisible: ShapedLine,
7762 sticky_buffer_header: Option<AnyElement>,
7763}
7764
7765impl EditorLayout {
7766 fn line_end_overshoot(&self) -> Pixels {
7767 0.15 * self.position_map.line_height
7768 }
7769}
7770
7771struct LineNumberLayout {
7772 shaped_line: ShapedLine,
7773 hitbox: Option<Hitbox>,
7774 display_row: DisplayRow,
7775}
7776
7777struct ColoredRange<T> {
7778 start: T,
7779 end: T,
7780 color: Hsla,
7781}
7782
7783#[derive(Clone)]
7784struct ScrollbarLayout {
7785 hitbox: Hitbox,
7786 visible_range: Range<f32>,
7787 visible: bool,
7788 text_unit_size: Pixels,
7789 thumb_size: Pixels,
7790 axis: Axis,
7791}
7792
7793impl ScrollbarLayout {
7794 const BORDER_WIDTH: Pixels = px(1.0);
7795 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7796 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7797 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7798
7799 fn thumb_bounds(&self) -> Bounds<Pixels> {
7800 match self.axis {
7801 Axis::Vertical => {
7802 let thumb_top = self.y_for_row(self.visible_range.start);
7803 let thumb_bottom = thumb_top + self.thumb_size;
7804 Bounds::from_corners(
7805 point(self.hitbox.left(), thumb_top),
7806 point(self.hitbox.right(), thumb_bottom),
7807 )
7808 }
7809 Axis::Horizontal => {
7810 let thumb_left =
7811 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7812 let thumb_right = thumb_left + self.thumb_size;
7813 Bounds::from_corners(
7814 point(thumb_left, self.hitbox.top()),
7815 point(thumb_right, self.hitbox.bottom()),
7816 )
7817 }
7818 }
7819 }
7820
7821 fn y_for_row(&self, row: f32) -> Pixels {
7822 self.hitbox.top() + row * self.text_unit_size
7823 }
7824
7825 fn marker_quads_for_ranges(
7826 &self,
7827 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7828 column: Option<usize>,
7829 ) -> Vec<PaintQuad> {
7830 struct MinMax {
7831 min: Pixels,
7832 max: Pixels,
7833 }
7834 let (x_range, height_limit) = if let Some(column) = column {
7835 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7836 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7837 let end = start + column_width;
7838 (
7839 Range { start, end },
7840 MinMax {
7841 min: Self::MIN_MARKER_HEIGHT,
7842 max: px(f32::MAX),
7843 },
7844 )
7845 } else {
7846 (
7847 Range {
7848 start: Self::BORDER_WIDTH,
7849 end: self.hitbox.size.width,
7850 },
7851 MinMax {
7852 min: Self::LINE_MARKER_HEIGHT,
7853 max: Self::LINE_MARKER_HEIGHT,
7854 },
7855 )
7856 };
7857
7858 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7859 let mut pixel_ranges = row_ranges
7860 .into_iter()
7861 .map(|range| {
7862 let start_y = row_to_y(range.start);
7863 let end_y = row_to_y(range.end)
7864 + self
7865 .text_unit_size
7866 .max(height_limit.min)
7867 .min(height_limit.max);
7868 ColoredRange {
7869 start: start_y,
7870 end: end_y,
7871 color: range.color,
7872 }
7873 })
7874 .peekable();
7875
7876 let mut quads = Vec::new();
7877 while let Some(mut pixel_range) = pixel_ranges.next() {
7878 while let Some(next_pixel_range) = pixel_ranges.peek() {
7879 if pixel_range.end >= next_pixel_range.start - px(1.0)
7880 && pixel_range.color == next_pixel_range.color
7881 {
7882 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7883 pixel_ranges.next();
7884 } else {
7885 break;
7886 }
7887 }
7888
7889 let bounds = Bounds::from_corners(
7890 point(x_range.start, pixel_range.start),
7891 point(x_range.end, pixel_range.end),
7892 );
7893 quads.push(quad(
7894 bounds,
7895 Corners::default(),
7896 pixel_range.color,
7897 Edges::default(),
7898 Hsla::transparent_black(),
7899 ));
7900 }
7901
7902 quads
7903 }
7904}
7905
7906struct CreaseTrailerLayout {
7907 element: AnyElement,
7908 bounds: Bounds<Pixels>,
7909}
7910
7911struct PositionMap {
7912 size: Size<Pixels>,
7913 line_height: Pixels,
7914 scroll_pixel_position: gpui::Point<Pixels>,
7915 scroll_max: gpui::Point<f32>,
7916 em_width: Pixels,
7917 em_advance: Pixels,
7918 line_layouts: Vec<LineWithInvisibles>,
7919 snapshot: EditorSnapshot,
7920}
7921
7922#[derive(Debug, Copy, Clone)]
7923pub struct PointForPosition {
7924 pub previous_valid: DisplayPoint,
7925 pub next_valid: DisplayPoint,
7926 pub exact_unclipped: DisplayPoint,
7927 pub column_overshoot_after_line_end: u32,
7928}
7929
7930impl PointForPosition {
7931 pub fn as_valid(&self) -> Option<DisplayPoint> {
7932 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7933 Some(self.previous_valid)
7934 } else {
7935 None
7936 }
7937 }
7938}
7939
7940impl PositionMap {
7941 fn point_for_position(
7942 &self,
7943 text_bounds: Bounds<Pixels>,
7944 position: gpui::Point<Pixels>,
7945 ) -> PointForPosition {
7946 let scroll_position = self.snapshot.scroll_position();
7947 let position = position - text_bounds.origin;
7948 let y = position.y.max(px(0.)).min(self.size.height);
7949 let x = position.x + (scroll_position.x * self.em_width);
7950 let row = ((y / self.line_height) + scroll_position.y) as u32;
7951
7952 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7953 .line_layouts
7954 .get(row as usize - scroll_position.y as usize)
7955 {
7956 if let Some(ix) = line.index_for_x(x) {
7957 (ix as u32, px(0.))
7958 } else {
7959 (line.len as u32, px(0.).max(x - line.width))
7960 }
7961 } else {
7962 (0, x)
7963 };
7964
7965 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7966 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7967 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7968
7969 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7970 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7971 PointForPosition {
7972 previous_valid,
7973 next_valid,
7974 exact_unclipped,
7975 column_overshoot_after_line_end,
7976 }
7977 }
7978}
7979
7980struct BlockLayout {
7981 id: BlockId,
7982 row: Option<DisplayRow>,
7983 element: AnyElement,
7984 available_space: Size<AvailableSpace>,
7985 style: BlockStyle,
7986}
7987
7988fn layout_line(
7989 row: DisplayRow,
7990 snapshot: &EditorSnapshot,
7991 style: &EditorStyle,
7992 text_width: Pixels,
7993 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7994 window: &mut Window,
7995 cx: &mut App,
7996) -> LineWithInvisibles {
7997 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7998 LineWithInvisibles::from_chunks(
7999 chunks,
8000 &style,
8001 MAX_LINE_LEN,
8002 1,
8003 snapshot.mode,
8004 text_width,
8005 is_row_soft_wrapped,
8006 window,
8007 cx,
8008 )
8009 .pop()
8010 .unwrap()
8011}
8012
8013#[derive(Debug)]
8014pub struct IndentGuideLayout {
8015 origin: gpui::Point<Pixels>,
8016 length: Pixels,
8017 single_indent_width: Pixels,
8018 depth: u32,
8019 active: bool,
8020 settings: IndentGuideSettings,
8021}
8022
8023pub struct CursorLayout {
8024 origin: gpui::Point<Pixels>,
8025 block_width: Pixels,
8026 line_height: Pixels,
8027 color: Hsla,
8028 shape: CursorShape,
8029 block_text: Option<ShapedLine>,
8030 cursor_name: Option<AnyElement>,
8031}
8032
8033#[derive(Debug)]
8034pub struct CursorName {
8035 string: SharedString,
8036 color: Hsla,
8037 is_top_row: bool,
8038}
8039
8040impl CursorLayout {
8041 pub fn new(
8042 origin: gpui::Point<Pixels>,
8043 block_width: Pixels,
8044 line_height: Pixels,
8045 color: Hsla,
8046 shape: CursorShape,
8047 block_text: Option<ShapedLine>,
8048 ) -> CursorLayout {
8049 CursorLayout {
8050 origin,
8051 block_width,
8052 line_height,
8053 color,
8054 shape,
8055 block_text,
8056 cursor_name: None,
8057 }
8058 }
8059
8060 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8061 Bounds {
8062 origin: self.origin + origin,
8063 size: size(self.block_width, self.line_height),
8064 }
8065 }
8066
8067 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8068 match self.shape {
8069 CursorShape::Bar => Bounds {
8070 origin: self.origin + origin,
8071 size: size(px(2.0), self.line_height),
8072 },
8073 CursorShape::Block | CursorShape::Hollow => Bounds {
8074 origin: self.origin + origin,
8075 size: size(self.block_width, self.line_height),
8076 },
8077 CursorShape::Underline => Bounds {
8078 origin: self.origin
8079 + origin
8080 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8081 size: size(self.block_width, px(2.0)),
8082 },
8083 }
8084 }
8085
8086 pub fn layout(
8087 &mut self,
8088 origin: gpui::Point<Pixels>,
8089 cursor_name: Option<CursorName>,
8090 window: &mut Window,
8091 cx: &mut App,
8092 ) {
8093 if let Some(cursor_name) = cursor_name {
8094 let bounds = self.bounds(origin);
8095 let text_size = self.line_height / 1.5;
8096
8097 let name_origin = if cursor_name.is_top_row {
8098 point(bounds.right() - px(1.), bounds.top())
8099 } else {
8100 match self.shape {
8101 CursorShape::Bar => point(
8102 bounds.right() - px(2.),
8103 bounds.top() - text_size / 2. - px(1.),
8104 ),
8105 _ => point(
8106 bounds.right() - px(1.),
8107 bounds.top() - text_size / 2. - px(1.),
8108 ),
8109 }
8110 };
8111 let mut name_element = div()
8112 .bg(self.color)
8113 .text_size(text_size)
8114 .px_0p5()
8115 .line_height(text_size + px(2.))
8116 .text_color(cursor_name.color)
8117 .child(cursor_name.string.clone())
8118 .into_any_element();
8119
8120 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8121
8122 self.cursor_name = Some(name_element);
8123 }
8124 }
8125
8126 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8127 let bounds = self.bounds(origin);
8128
8129 //Draw background or border quad
8130 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8131 outline(bounds, self.color)
8132 } else {
8133 fill(bounds, self.color)
8134 };
8135
8136 if let Some(name) = &mut self.cursor_name {
8137 name.paint(window, cx);
8138 }
8139
8140 window.paint_quad(cursor);
8141
8142 if let Some(block_text) = &self.block_text {
8143 block_text
8144 .paint(self.origin + origin, self.line_height, window, cx)
8145 .log_err();
8146 }
8147 }
8148
8149 pub fn shape(&self) -> CursorShape {
8150 self.shape
8151 }
8152}
8153
8154#[derive(Debug)]
8155pub struct HighlightedRange {
8156 pub start_y: Pixels,
8157 pub line_height: Pixels,
8158 pub lines: Vec<HighlightedRangeLine>,
8159 pub color: Hsla,
8160 pub corner_radius: Pixels,
8161}
8162
8163#[derive(Debug)]
8164pub struct HighlightedRangeLine {
8165 pub start_x: Pixels,
8166 pub end_x: Pixels,
8167}
8168
8169impl HighlightedRange {
8170 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8171 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8172 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8173 self.paint_lines(
8174 self.start_y + self.line_height,
8175 &self.lines[1..],
8176 bounds,
8177 window,
8178 );
8179 } else {
8180 self.paint_lines(self.start_y, &self.lines, bounds, window);
8181 }
8182 }
8183
8184 fn paint_lines(
8185 &self,
8186 start_y: Pixels,
8187 lines: &[HighlightedRangeLine],
8188 _bounds: Bounds<Pixels>,
8189 window: &mut Window,
8190 ) {
8191 if lines.is_empty() {
8192 return;
8193 }
8194
8195 let first_line = lines.first().unwrap();
8196 let last_line = lines.last().unwrap();
8197
8198 let first_top_left = point(first_line.start_x, start_y);
8199 let first_top_right = point(first_line.end_x, start_y);
8200
8201 let curve_height = point(Pixels::ZERO, self.corner_radius);
8202 let curve_width = |start_x: Pixels, end_x: Pixels| {
8203 let max = (end_x - start_x) / 2.;
8204 let width = if max < self.corner_radius {
8205 max
8206 } else {
8207 self.corner_radius
8208 };
8209
8210 point(width, Pixels::ZERO)
8211 };
8212
8213 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8214 let mut builder = gpui::PathBuilder::fill();
8215 builder.curve_to(first_top_right + curve_height, first_top_right);
8216
8217 let mut iter = lines.iter().enumerate().peekable();
8218 while let Some((ix, line)) = iter.next() {
8219 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8220
8221 if let Some((_, next_line)) = iter.peek() {
8222 let next_top_right = point(next_line.end_x, bottom_right.y);
8223
8224 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8225 Ordering::Equal => {
8226 builder.line_to(bottom_right);
8227 }
8228 Ordering::Less => {
8229 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8230 builder.line_to(bottom_right - curve_height);
8231 if self.corner_radius > Pixels::ZERO {
8232 builder.curve_to(bottom_right - curve_width, bottom_right);
8233 }
8234 builder.line_to(next_top_right + curve_width);
8235 if self.corner_radius > Pixels::ZERO {
8236 builder.curve_to(next_top_right + curve_height, next_top_right);
8237 }
8238 }
8239 Ordering::Greater => {
8240 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8241 builder.line_to(bottom_right - curve_height);
8242 if self.corner_radius > Pixels::ZERO {
8243 builder.curve_to(bottom_right + curve_width, bottom_right);
8244 }
8245 builder.line_to(next_top_right - curve_width);
8246 if self.corner_radius > Pixels::ZERO {
8247 builder.curve_to(next_top_right + curve_height, next_top_right);
8248 }
8249 }
8250 }
8251 } else {
8252 let curve_width = curve_width(line.start_x, line.end_x);
8253 builder.line_to(bottom_right - curve_height);
8254 if self.corner_radius > Pixels::ZERO {
8255 builder.curve_to(bottom_right - curve_width, bottom_right);
8256 }
8257
8258 let bottom_left = point(line.start_x, bottom_right.y);
8259 builder.line_to(bottom_left + curve_width);
8260 if self.corner_radius > Pixels::ZERO {
8261 builder.curve_to(bottom_left - curve_height, bottom_left);
8262 }
8263 }
8264 }
8265
8266 if first_line.start_x > last_line.start_x {
8267 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8268 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8269 builder.line_to(second_top_left + curve_height);
8270 if self.corner_radius > Pixels::ZERO {
8271 builder.curve_to(second_top_left + curve_width, second_top_left);
8272 }
8273 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8274 builder.line_to(first_bottom_left - curve_width);
8275 if self.corner_radius > Pixels::ZERO {
8276 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8277 }
8278 }
8279
8280 builder.line_to(first_top_left + curve_height);
8281 if self.corner_radius > Pixels::ZERO {
8282 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8283 }
8284 builder.line_to(first_top_right - top_curve_width);
8285
8286 if let Ok(path) = builder.build() {
8287 window.paint_path(path, self.color);
8288 }
8289 }
8290}
8291
8292enum CursorPopoverType {
8293 CodeContextMenu,
8294 EditPrediction,
8295}
8296
8297pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8298 (delta.pow(1.5) / 100.0).into()
8299}
8300
8301fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8302 (delta.pow(1.2) / 300.0).into()
8303}
8304
8305pub fn register_action<T: Action>(
8306 editor: &Entity<Editor>,
8307 window: &mut Window,
8308 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8309) {
8310 let editor = editor.clone();
8311 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8312 let action = action.downcast_ref().unwrap();
8313 if phase == DispatchPhase::Bubble {
8314 editor.update(cx, |editor, cx| {
8315 listener(editor, action, window, cx);
8316 })
8317 }
8318 })
8319}
8320
8321fn compute_auto_height_layout(
8322 editor: &mut Editor,
8323 max_lines: usize,
8324 max_line_number_width: Pixels,
8325 known_dimensions: Size<Option<Pixels>>,
8326 available_width: AvailableSpace,
8327 window: &mut Window,
8328 cx: &mut Context<Editor>,
8329) -> Option<Size<Pixels>> {
8330 let width = known_dimensions.width.or({
8331 if let AvailableSpace::Definite(available_width) = available_width {
8332 Some(available_width)
8333 } else {
8334 None
8335 }
8336 })?;
8337 if let Some(height) = known_dimensions.height {
8338 return Some(size(width, height));
8339 }
8340
8341 let style = editor.style.as_ref().unwrap();
8342 let font_id = window.text_system().resolve_font(&style.text.font());
8343 let font_size = style.text.font_size.to_pixels(window.rem_size());
8344 let line_height = style.text.line_height_in_pixels(window.rem_size());
8345 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8346
8347 let mut snapshot = editor.snapshot(window, cx);
8348 let gutter_dimensions = snapshot
8349 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8350 .unwrap_or_default();
8351
8352 editor.gutter_dimensions = gutter_dimensions;
8353 let text_width = width - gutter_dimensions.width;
8354 let overscroll = size(em_width, px(0.));
8355
8356 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8357 if editor.set_wrap_width(Some(editor_width), cx) {
8358 snapshot = editor.snapshot(window, cx);
8359 }
8360
8361 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8362 let height = scroll_height
8363 .max(line_height)
8364 .min(line_height * max_lines as f32);
8365
8366 Some(size(width, height))
8367}
8368
8369#[cfg(test)]
8370mod tests {
8371 use super::*;
8372 use crate::{
8373 display_map::{BlockPlacement, BlockProperties},
8374 editor_tests::{init_test, update_test_language_settings},
8375 Editor, MultiBuffer,
8376 };
8377 use gpui::{TestAppContext, VisualTestContext};
8378 use language::language_settings;
8379 use log::info;
8380 use similar::DiffableStr;
8381 use std::num::NonZeroU32;
8382 use util::test::sample_text;
8383
8384 #[gpui::test]
8385 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8386 init_test(cx, |_| {});
8387 let window = cx.add_window(|window, cx| {
8388 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8389 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8390 });
8391
8392 let editor = window.root(cx).unwrap();
8393 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8394 let line_height = window
8395 .update(cx, |_, window, _| {
8396 style.text.line_height_in_pixels(window.rem_size())
8397 })
8398 .unwrap();
8399 let element = EditorElement::new(&editor, style);
8400 let snapshot = window
8401 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8402 .unwrap();
8403
8404 let layouts = cx
8405 .update_window(*window, |_, window, cx| {
8406 element.layout_line_numbers(
8407 None,
8408 GutterDimensions {
8409 left_padding: Pixels::ZERO,
8410 right_padding: Pixels::ZERO,
8411 width: px(30.0),
8412 margin: Pixels::ZERO,
8413 git_blame_entries_width: None,
8414 },
8415 line_height,
8416 gpui::Point::default(),
8417 DisplayRow(0)..DisplayRow(6),
8418 &(0..6)
8419 .map(|row| RowInfo {
8420 buffer_row: Some(row),
8421 ..Default::default()
8422 })
8423 .collect::<Vec<_>>(),
8424 Some(DisplayPoint::new(DisplayRow(0), 0)),
8425 &snapshot,
8426 window,
8427 cx,
8428 )
8429 })
8430 .unwrap();
8431 assert_eq!(layouts.len(), 6);
8432
8433 let relative_rows = window
8434 .update(cx, |editor, window, cx| {
8435 let snapshot = editor.snapshot(window, cx);
8436 element.calculate_relative_line_numbers(
8437 &snapshot,
8438 &(DisplayRow(0)..DisplayRow(6)),
8439 Some(DisplayRow(3)),
8440 )
8441 })
8442 .unwrap();
8443 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8444 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8445 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8446 // current line has no relative number
8447 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8448 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8449
8450 // works if cursor is before screen
8451 let relative_rows = window
8452 .update(cx, |editor, window, cx| {
8453 let snapshot = editor.snapshot(window, cx);
8454 element.calculate_relative_line_numbers(
8455 &snapshot,
8456 &(DisplayRow(3)..DisplayRow(6)),
8457 Some(DisplayRow(1)),
8458 )
8459 })
8460 .unwrap();
8461 assert_eq!(relative_rows.len(), 3);
8462 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8463 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8464 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8465
8466 // works if cursor is after screen
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(3)),
8473 Some(DisplayRow(6)),
8474 )
8475 })
8476 .unwrap();
8477 assert_eq!(relative_rows.len(), 3);
8478 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8479 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8480 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8481 }
8482
8483 #[gpui::test]
8484 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8485 init_test(cx, |_| {});
8486
8487 let window = cx.add_window(|window, cx| {
8488 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8489 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8490 });
8491 let cx = &mut VisualTestContext::from_window(*window, cx);
8492 let editor = window.root(cx).unwrap();
8493 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8494
8495 window
8496 .update(cx, |editor, window, cx| {
8497 editor.cursor_shape = CursorShape::Block;
8498 editor.change_selections(None, window, cx, |s| {
8499 s.select_ranges([
8500 Point::new(0, 0)..Point::new(1, 0),
8501 Point::new(3, 2)..Point::new(3, 3),
8502 Point::new(5, 6)..Point::new(6, 0),
8503 ]);
8504 });
8505 })
8506 .unwrap();
8507
8508 let (_, state) = cx.draw(
8509 point(px(500.), px(500.)),
8510 size(px(500.), px(500.)),
8511 |_, _| EditorElement::new(&editor, style),
8512 );
8513
8514 assert_eq!(state.selections.len(), 1);
8515 let local_selections = &state.selections[0].1;
8516 assert_eq!(local_selections.len(), 3);
8517 // moves cursor back one line
8518 assert_eq!(
8519 local_selections[0].head,
8520 DisplayPoint::new(DisplayRow(0), 6)
8521 );
8522 assert_eq!(
8523 local_selections[0].range,
8524 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8525 );
8526
8527 // moves cursor back one column
8528 assert_eq!(
8529 local_selections[1].range,
8530 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8531 );
8532 assert_eq!(
8533 local_selections[1].head,
8534 DisplayPoint::new(DisplayRow(3), 2)
8535 );
8536
8537 // leaves cursor on the max point
8538 assert_eq!(
8539 local_selections[2].range,
8540 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8541 );
8542 assert_eq!(
8543 local_selections[2].head,
8544 DisplayPoint::new(DisplayRow(6), 0)
8545 );
8546
8547 // active lines does not include 1 (even though the range of the selection does)
8548 assert_eq!(
8549 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8550 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8551 );
8552
8553 // multi-buffer support
8554 // in DisplayPoint coordinates, this is what we're dealing with:
8555 // 0: [[file
8556 // 1: header
8557 // 2: section]]
8558 // 3: aaaaaa
8559 // 4: bbbbbb
8560 // 5: cccccc
8561 // 6:
8562 // 7: [[footer]]
8563 // 8: [[header]]
8564 // 9: ffffff
8565 // 10: gggggg
8566 // 11: hhhhhh
8567 // 12:
8568 // 13: [[footer]]
8569 // 14: [[file
8570 // 15: header
8571 // 16: section]]
8572 // 17: bbbbbb
8573 // 18: cccccc
8574 // 19: dddddd
8575 // 20: [[footer]]
8576 let window = cx.add_window(|window, cx| {
8577 let buffer = MultiBuffer::build_multi(
8578 [
8579 (
8580 &(sample_text(8, 6, 'a') + "\n"),
8581 vec![
8582 Point::new(0, 0)..Point::new(3, 0),
8583 Point::new(4, 0)..Point::new(7, 0),
8584 ],
8585 ),
8586 (
8587 &(sample_text(8, 6, 'a') + "\n"),
8588 vec![Point::new(1, 0)..Point::new(3, 0)],
8589 ),
8590 ],
8591 cx,
8592 );
8593 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8594 });
8595 let editor = window.root(cx).unwrap();
8596 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8597 let _state = window.update(cx, |editor, window, cx| {
8598 editor.cursor_shape = CursorShape::Block;
8599 editor.change_selections(None, window, cx, |s| {
8600 s.select_display_ranges([
8601 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8602 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8603 ]);
8604 });
8605 });
8606
8607 let (_, state) = cx.draw(
8608 point(px(500.), px(500.)),
8609 size(px(500.), px(500.)),
8610 |_, _| EditorElement::new(&editor, style),
8611 );
8612 assert_eq!(state.selections.len(), 1);
8613 let local_selections = &state.selections[0].1;
8614 assert_eq!(local_selections.len(), 2);
8615
8616 // moves cursor on excerpt boundary back a line
8617 // and doesn't allow selection to bleed through
8618 assert_eq!(
8619 local_selections[0].range,
8620 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8621 );
8622 assert_eq!(
8623 local_selections[0].head,
8624 DisplayPoint::new(DisplayRow(6), 0)
8625 );
8626 // moves cursor on buffer boundary back two lines
8627 // and doesn't allow selection to bleed through
8628 assert_eq!(
8629 local_selections[1].range,
8630 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8631 );
8632 assert_eq!(
8633 local_selections[1].head,
8634 DisplayPoint::new(DisplayRow(12), 0)
8635 );
8636 }
8637
8638 #[gpui::test]
8639 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8640 init_test(cx, |_| {});
8641
8642 let window = cx.add_window(|window, cx| {
8643 let buffer = MultiBuffer::build_simple("", cx);
8644 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8645 });
8646 let cx = &mut VisualTestContext::from_window(*window, cx);
8647 let editor = window.root(cx).unwrap();
8648 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8649 window
8650 .update(cx, |editor, window, cx| {
8651 editor.set_placeholder_text("hello", cx);
8652 editor.insert_blocks(
8653 [BlockProperties {
8654 style: BlockStyle::Fixed,
8655 placement: BlockPlacement::Above(Anchor::min()),
8656 height: 3,
8657 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8658 priority: 0,
8659 }],
8660 None,
8661 cx,
8662 );
8663
8664 // Blur the editor so that it displays placeholder text.
8665 window.blur();
8666 })
8667 .unwrap();
8668
8669 let (_, state) = cx.draw(
8670 point(px(500.), px(500.)),
8671 size(px(500.), px(500.)),
8672 |_, _| EditorElement::new(&editor, style),
8673 );
8674 assert_eq!(state.position_map.line_layouts.len(), 4);
8675 assert_eq!(state.line_numbers.len(), 1);
8676 assert_eq!(
8677 state
8678 .line_numbers
8679 .get(&MultiBufferRow(0))
8680 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8681 Some("1")
8682 );
8683 }
8684
8685 #[gpui::test]
8686 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8687 const TAB_SIZE: u32 = 4;
8688
8689 let input_text = "\t \t|\t| a b";
8690 let expected_invisibles = vec![
8691 Invisible::Tab {
8692 line_start_offset: 0,
8693 line_end_offset: TAB_SIZE as usize,
8694 },
8695 Invisible::Whitespace {
8696 line_offset: TAB_SIZE as usize,
8697 },
8698 Invisible::Tab {
8699 line_start_offset: TAB_SIZE as usize + 1,
8700 line_end_offset: TAB_SIZE as usize * 2,
8701 },
8702 Invisible::Tab {
8703 line_start_offset: TAB_SIZE as usize * 2 + 1,
8704 line_end_offset: TAB_SIZE as usize * 3,
8705 },
8706 Invisible::Whitespace {
8707 line_offset: TAB_SIZE as usize * 3 + 1,
8708 },
8709 Invisible::Whitespace {
8710 line_offset: TAB_SIZE as usize * 3 + 3,
8711 },
8712 ];
8713 assert_eq!(
8714 expected_invisibles.len(),
8715 input_text
8716 .chars()
8717 .filter(|initial_char| initial_char.is_whitespace())
8718 .count(),
8719 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8720 );
8721
8722 for show_line_numbers in [true, false] {
8723 init_test(cx, |s| {
8724 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8725 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8726 });
8727
8728 let actual_invisibles = collect_invisibles_from_new_editor(
8729 cx,
8730 EditorMode::Full,
8731 input_text,
8732 px(500.0),
8733 show_line_numbers,
8734 );
8735
8736 assert_eq!(expected_invisibles, actual_invisibles);
8737 }
8738 }
8739
8740 #[gpui::test]
8741 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8742 init_test(cx, |s| {
8743 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8744 s.defaults.tab_size = NonZeroU32::new(4);
8745 });
8746
8747 for editor_mode_without_invisibles in [
8748 EditorMode::SingleLine { auto_width: false },
8749 EditorMode::AutoHeight { max_lines: 100 },
8750 ] {
8751 for show_line_numbers in [true, false] {
8752 let invisibles = collect_invisibles_from_new_editor(
8753 cx,
8754 editor_mode_without_invisibles,
8755 "\t\t\t| | a b",
8756 px(500.0),
8757 show_line_numbers,
8758 );
8759 assert!(invisibles.is_empty(),
8760 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8761 }
8762 }
8763 }
8764
8765 #[gpui::test]
8766 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8767 let tab_size = 4;
8768 let input_text = "a\tbcd ".repeat(9);
8769 let repeated_invisibles = [
8770 Invisible::Tab {
8771 line_start_offset: 1,
8772 line_end_offset: tab_size as usize,
8773 },
8774 Invisible::Whitespace {
8775 line_offset: tab_size as usize + 3,
8776 },
8777 Invisible::Whitespace {
8778 line_offset: tab_size as usize + 4,
8779 },
8780 Invisible::Whitespace {
8781 line_offset: tab_size as usize + 5,
8782 },
8783 Invisible::Whitespace {
8784 line_offset: tab_size as usize + 6,
8785 },
8786 Invisible::Whitespace {
8787 line_offset: tab_size as usize + 7,
8788 },
8789 ];
8790 let expected_invisibles = std::iter::once(repeated_invisibles)
8791 .cycle()
8792 .take(9)
8793 .flatten()
8794 .collect::<Vec<_>>();
8795 assert_eq!(
8796 expected_invisibles.len(),
8797 input_text
8798 .chars()
8799 .filter(|initial_char| initial_char.is_whitespace())
8800 .count(),
8801 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8802 );
8803 info!("Expected invisibles: {expected_invisibles:?}");
8804
8805 init_test(cx, |_| {});
8806
8807 // Put the same string with repeating whitespace pattern into editors of various size,
8808 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8809 let resize_step = 10.0;
8810 let mut editor_width = 200.0;
8811 while editor_width <= 1000.0 {
8812 for show_line_numbers in [true, false] {
8813 update_test_language_settings(cx, |s| {
8814 s.defaults.tab_size = NonZeroU32::new(tab_size);
8815 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8816 s.defaults.preferred_line_length = Some(editor_width as u32);
8817 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8818 });
8819
8820 let actual_invisibles = collect_invisibles_from_new_editor(
8821 cx,
8822 EditorMode::Full,
8823 &input_text,
8824 px(editor_width),
8825 show_line_numbers,
8826 );
8827
8828 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8829 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8830 let mut i = 0;
8831 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8832 i = actual_index;
8833 match expected_invisibles.get(i) {
8834 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8835 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8836 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8837 _ => {
8838 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8839 }
8840 },
8841 None => {
8842 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8843 }
8844 }
8845 }
8846 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8847 assert!(
8848 missing_expected_invisibles.is_empty(),
8849 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8850 );
8851
8852 editor_width += resize_step;
8853 }
8854 }
8855 }
8856
8857 fn collect_invisibles_from_new_editor(
8858 cx: &mut TestAppContext,
8859 editor_mode: EditorMode,
8860 input_text: &str,
8861 editor_width: Pixels,
8862 show_line_numbers: bool,
8863 ) -> Vec<Invisible> {
8864 info!(
8865 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8866 editor_width.0
8867 );
8868 let window = cx.add_window(|window, cx| {
8869 let buffer = MultiBuffer::build_simple(input_text, cx);
8870 Editor::new(editor_mode, buffer, None, true, window, cx)
8871 });
8872 let cx = &mut VisualTestContext::from_window(*window, cx);
8873 let editor = window.root(cx).unwrap();
8874
8875 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8876 window
8877 .update(cx, |editor, _, cx| {
8878 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8879 editor.set_wrap_width(Some(editor_width), cx);
8880 editor.set_show_line_numbers(show_line_numbers, cx);
8881 })
8882 .unwrap();
8883 let (_, state) = cx.draw(
8884 point(px(500.), px(500.)),
8885 size(px(500.), px(500.)),
8886 |_, _| EditorElement::new(&editor, style),
8887 );
8888 state
8889 .position_map
8890 .line_layouts
8891 .iter()
8892 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8893 .cloned()
8894 .collect()
8895 }
8896}
8897
8898fn diff_hunk_controls(
8899 row: u32,
8900 hunk_range: Range<Anchor>,
8901 line_height: Pixels,
8902 editor: &Entity<Editor>,
8903 cx: &mut App,
8904) -> AnyElement {
8905 h_flex()
8906 .h(line_height)
8907 .mr_1()
8908 .gap_1()
8909 .px_1()
8910 .pb_1()
8911 .border_b_1()
8912 .border_color(cx.theme().colors().border_variant)
8913 .rounded_b_lg()
8914 .bg(cx.theme().colors().editor_background)
8915 .gap_1()
8916 .child(
8917 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8918 .shape(IconButtonShape::Square)
8919 .icon_size(IconSize::Small)
8920 // .disabled(!has_multiple_hunks)
8921 .tooltip({
8922 let focus_handle = editor.focus_handle(cx);
8923 move |window, cx| {
8924 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8925 }
8926 })
8927 .on_click({
8928 let editor = editor.clone();
8929 move |_event, window, cx| {
8930 editor.update(cx, |editor, cx| {
8931 let snapshot = editor.snapshot(window, cx);
8932 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8933 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8934 editor.expand_selected_diff_hunks(cx);
8935 });
8936 }
8937 }),
8938 )
8939 .child(
8940 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8941 .shape(IconButtonShape::Square)
8942 .icon_size(IconSize::Small)
8943 // .disabled(!has_multiple_hunks)
8944 .tooltip({
8945 let focus_handle = editor.focus_handle(cx);
8946 move |window, cx| {
8947 Tooltip::for_action_in(
8948 "Previous Hunk",
8949 &GoToPrevHunk,
8950 &focus_handle,
8951 window,
8952 cx,
8953 )
8954 }
8955 })
8956 .on_click({
8957 let editor = editor.clone();
8958 move |_event, window, cx| {
8959 editor.update(cx, |editor, cx| {
8960 let snapshot = editor.snapshot(window, cx);
8961 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8962 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8963 editor.expand_selected_diff_hunks(cx);
8964 });
8965 }
8966 }),
8967 )
8968 .child(
8969 IconButton::new("discard", IconName::Undo)
8970 .shape(IconButtonShape::Square)
8971 .icon_size(IconSize::Small)
8972 .tooltip({
8973 let focus_handle = editor.focus_handle(cx);
8974 move |window, cx| {
8975 Tooltip::for_action_in(
8976 "Discard Hunk",
8977 &RevertSelectedHunks,
8978 &focus_handle,
8979 window,
8980 cx,
8981 )
8982 }
8983 })
8984 .on_click({
8985 let editor = editor.clone();
8986 move |_event, window, cx| {
8987 editor.update(cx, |editor, cx| {
8988 let snapshot = editor.snapshot(window, cx);
8989 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8990 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8991 });
8992 }
8993 }),
8994 )
8995 .into_any_element()
8996}