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::show_character_palette);
434 register_action(editor, window, |editor, action, window, cx| {
435 if let Some(task) = editor.confirm_completion(action, window, cx) {
436 task.detach_and_notify_err(window, cx);
437 } else {
438 cx.propagate();
439 }
440 });
441 register_action(editor, window, |editor, action, window, cx| {
442 if let Some(task) = editor.compose_completion(action, window, cx) {
443 task.detach_and_notify_err(window, cx);
444 } else {
445 cx.propagate();
446 }
447 });
448 register_action(editor, window, |editor, action, window, cx| {
449 if let Some(task) = editor.confirm_code_action(action, window, cx) {
450 task.detach_and_notify_err(window, cx);
451 } else {
452 cx.propagate();
453 }
454 });
455 register_action(editor, window, |editor, action, window, cx| {
456 if let Some(task) = editor.rename(action, window, cx) {
457 task.detach_and_notify_err(window, cx);
458 } else {
459 cx.propagate();
460 }
461 });
462 register_action(editor, window, |editor, action, window, cx| {
463 if let Some(task) = editor.confirm_rename(action, window, cx) {
464 task.detach_and_notify_err(window, cx);
465 } else {
466 cx.propagate();
467 }
468 });
469 register_action(editor, window, |editor, action, window, cx| {
470 if let Some(task) = editor.find_all_references(action, window, cx) {
471 task.detach_and_log_err(cx);
472 } else {
473 cx.propagate();
474 }
475 });
476 register_action(editor, window, Editor::show_signature_help);
477 register_action(editor, window, Editor::next_inline_completion);
478 register_action(editor, window, Editor::previous_inline_completion);
479 register_action(editor, window, Editor::show_inline_completion);
480 register_action(editor, window, Editor::context_menu_first);
481 register_action(editor, window, Editor::context_menu_prev);
482 register_action(editor, window, Editor::context_menu_next);
483 register_action(editor, window, Editor::context_menu_last);
484 register_action(editor, window, Editor::display_cursor_names);
485 register_action(editor, window, Editor::unique_lines_case_insensitive);
486 register_action(editor, window, Editor::unique_lines_case_sensitive);
487 register_action(editor, window, Editor::accept_partial_inline_completion);
488 register_action(editor, window, Editor::accept_inline_completion);
489 register_action(editor, window, Editor::revert_file);
490 register_action(editor, window, Editor::revert_selected_hunks);
491 register_action(editor, window, Editor::apply_all_diff_hunks);
492 register_action(editor, window, Editor::apply_selected_diff_hunks);
493 register_action(editor, window, Editor::open_active_item_in_terminal);
494 register_action(editor, window, Editor::reload_file);
495 register_action(editor, window, Editor::spawn_nearest_task);
496 register_action(editor, window, Editor::insert_uuid_v4);
497 register_action(editor, window, Editor::insert_uuid_v7);
498 register_action(editor, window, Editor::open_selections_in_multibuffer);
499 }
500
501 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
502 let position_map = layout.position_map.clone();
503 window.on_key_event({
504 let editor = self.editor.clone();
505 move |event: &ModifiersChangedEvent, phase, window, cx| {
506 if phase != DispatchPhase::Bubble {
507 return;
508 }
509 editor.update(cx, |editor, cx| {
510 if editor.hover_state.focused(window, cx) {
511 return;
512 }
513 Self::modifiers_changed(editor, event, &position_map, window, cx)
514 })
515 }
516 });
517 }
518
519 fn modifiers_changed(
520 editor: &mut Editor,
521 event: &ModifiersChangedEvent,
522 position_map: &PositionMap,
523 window: &mut Window,
524 cx: &mut Context<Editor>,
525 ) {
526 editor.update_inline_completion_preview(&event.modifiers, window, cx);
527
528 let mouse_position = window.mouse_position();
529 if !position_map.text_hitbox.is_hovered(window) {
530 return;
531 }
532
533 editor.update_hovered_link(
534 position_map.point_for_position(mouse_position),
535 &position_map.snapshot,
536 event.modifiers,
537 window,
538 cx,
539 )
540 }
541
542 fn mouse_left_down(
543 editor: &mut Editor,
544 event: &MouseDownEvent,
545 hovered_hunk: Option<Range<Anchor>>,
546 position_map: &PositionMap,
547 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
548 window: &mut Window,
549 cx: &mut Context<Editor>,
550 ) {
551 if window.default_prevented() {
552 return;
553 }
554
555 let text_hitbox = &position_map.text_hitbox;
556 let gutter_hitbox = &position_map.gutter_hitbox;
557 let mut click_count = event.click_count;
558 let mut modifiers = event.modifiers;
559
560 if let Some(hovered_hunk) = hovered_hunk {
561 editor.toggle_diff_hunks_in_ranges(vec![hovered_hunk], cx);
562 cx.notify();
563 return;
564 } else if gutter_hitbox.is_hovered(window) {
565 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
566 } else if !text_hitbox.is_hovered(window) {
567 return;
568 }
569
570 let is_singleton = editor.buffer().read(cx).is_singleton();
571
572 if click_count == 2 && !is_singleton {
573 match EditorSettings::get_global(cx).double_click_in_multibuffer {
574 DoubleClickInMultibuffer::Select => {
575 // do nothing special on double click, all selection logic is below
576 }
577 DoubleClickInMultibuffer::Open => {
578 if modifiers.alt {
579 // if double click is made with alt, pretend it's a regular double click without opening and alt,
580 // and run the selection logic.
581 modifiers.alt = false;
582 } else {
583 let scroll_position_row =
584 position_map.scroll_pixel_position.y / position_map.line_height;
585 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
586 + position_map.scroll_pixel_position.y)
587 / position_map.line_height)
588 as u32;
589 let multi_buffer_row = position_map
590 .snapshot
591 .display_point_to_point(
592 DisplayPoint::new(DisplayRow(display_row), 0),
593 Bias::Right,
594 )
595 .row;
596 let line_offset_from_top = display_row - scroll_position_row as u32;
597 // if double click is made without alt, open the corresponding excerp
598 editor.open_excerpts_common(
599 Some(JumpData::MultiBufferRow {
600 row: MultiBufferRow(multi_buffer_row),
601 line_offset_from_top,
602 }),
603 false,
604 window,
605 cx,
606 );
607 return;
608 }
609 }
610 }
611 }
612
613 let point_for_position = position_map.point_for_position(event.position);
614 let position = point_for_position.previous_valid;
615 if modifiers.shift && modifiers.alt {
616 editor.select(
617 SelectPhase::BeginColumnar {
618 position,
619 reset: false,
620 goal_column: point_for_position.exact_unclipped.column(),
621 },
622 window,
623 cx,
624 );
625 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
626 {
627 editor.select(
628 SelectPhase::Extend {
629 position,
630 click_count,
631 },
632 window,
633 cx,
634 );
635 } else {
636 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
637 let multi_cursor_modifier = match multi_cursor_setting {
638 MultiCursorModifier::Alt => modifiers.alt,
639 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
640 };
641 editor.select(
642 SelectPhase::Begin {
643 position,
644 add: multi_cursor_modifier,
645 click_count,
646 },
647 window,
648 cx,
649 );
650 }
651 cx.stop_propagation();
652
653 if !is_singleton {
654 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
655 + position_map.scroll_pixel_position.y)
656 / position_map.line_height) as u32;
657 let multi_buffer_row = position_map
658 .snapshot
659 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
660 .row;
661 if line_numbers
662 .get(&MultiBufferRow(multi_buffer_row))
663 .and_then(|line_number| line_number.hitbox.as_ref())
664 .is_some_and(|hitbox| hitbox.contains(&event.position))
665 {
666 let scroll_position_row =
667 position_map.scroll_pixel_position.y / position_map.line_height;
668 let line_offset_from_top = display_row - scroll_position_row as u32;
669
670 editor.open_excerpts_common(
671 Some(JumpData::MultiBufferRow {
672 row: MultiBufferRow(multi_buffer_row),
673 line_offset_from_top,
674 }),
675 modifiers.alt,
676 window,
677 cx,
678 );
679 cx.stop_propagation();
680 }
681 }
682 }
683
684 fn mouse_right_down(
685 editor: &mut Editor,
686 event: &MouseDownEvent,
687 position_map: &PositionMap,
688 window: &mut Window,
689 cx: &mut Context<Editor>,
690 ) {
691 if !position_map.text_hitbox.is_hovered(window) {
692 return;
693 }
694 let point_for_position = position_map.point_for_position(event.position);
695 mouse_context_menu::deploy_context_menu(
696 editor,
697 Some(event.position),
698 point_for_position.previous_valid,
699 window,
700 cx,
701 );
702 cx.stop_propagation();
703 }
704
705 fn mouse_middle_down(
706 editor: &mut Editor,
707 event: &MouseDownEvent,
708 position_map: &PositionMap,
709 window: &mut Window,
710 cx: &mut Context<Editor>,
711 ) {
712 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
713 return;
714 }
715
716 let point_for_position = position_map.point_for_position(event.position);
717 let position = point_for_position.previous_valid;
718
719 editor.select(
720 SelectPhase::BeginColumnar {
721 position,
722 reset: true,
723 goal_column: point_for_position.exact_unclipped.column(),
724 },
725 window,
726 cx,
727 );
728 }
729
730 fn mouse_up(
731 editor: &mut Editor,
732 event: &MouseUpEvent,
733 position_map: &PositionMap,
734 window: &mut Window,
735 cx: &mut Context<Editor>,
736 ) {
737 let text_hitbox = &position_map.text_hitbox;
738 let end_selection = editor.has_pending_selection();
739 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
740
741 if end_selection {
742 editor.select(SelectPhase::End, window, cx);
743 }
744
745 if end_selection && pending_nonempty_selections {
746 cx.stop_propagation();
747 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
748 && event.button == MouseButton::Middle
749 {
750 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
751 return;
752 }
753
754 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
755 if EditorSettings::get_global(cx).middle_click_paste {
756 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
757 let point_for_position = position_map.point_for_position(event.position);
758 let position = point_for_position.previous_valid;
759
760 editor.select(
761 SelectPhase::Begin {
762 position,
763 add: false,
764 click_count: 1,
765 },
766 window,
767 cx,
768 );
769 editor.insert(&text, window, cx);
770 }
771 cx.stop_propagation()
772 }
773 }
774 }
775
776 fn click(
777 editor: &mut Editor,
778 event: &ClickEvent,
779 position_map: &PositionMap,
780 window: &mut Window,
781 cx: &mut Context<Editor>,
782 ) {
783 let text_hitbox = &position_map.text_hitbox;
784 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
785
786 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
787 let multi_cursor_modifier = match multi_cursor_setting {
788 MultiCursorModifier::Alt => event.modifiers().secondary(),
789 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
790 };
791
792 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
793 let point = position_map.point_for_position(event.up.position);
794 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
795
796 cx.stop_propagation();
797 }
798 }
799
800 fn mouse_dragged(
801 editor: &mut Editor,
802 event: &MouseMoveEvent,
803 position_map: &PositionMap,
804 window: &mut Window,
805 cx: &mut Context<Editor>,
806 ) {
807 if !editor.has_pending_selection() {
808 return;
809 }
810
811 let text_bounds = position_map.text_hitbox.bounds;
812 let point_for_position = position_map.point_for_position(event.position);
813 let mut scroll_delta = gpui::Point::<f32>::default();
814 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
815 let top = text_bounds.origin.y + vertical_margin;
816 let bottom = text_bounds.bottom_left().y - vertical_margin;
817 if event.position.y < top {
818 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
819 }
820 if event.position.y > bottom {
821 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
822 }
823
824 // We need horizontal width of text
825 let style = editor.style.clone().unwrap_or_default();
826 let font_id = window.text_system().resolve_font(&style.text.font());
827 let font_size = style.text.font_size.to_pixels(window.rem_size());
828 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
829
830 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
831
832 let scroll_space: Pixels = scroll_margin_x * em_width;
833
834 let left = text_bounds.origin.x + scroll_space;
835 let right = text_bounds.top_right().x - scroll_space;
836
837 if event.position.x < left {
838 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
839 }
840 if event.position.x > right {
841 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
842 }
843
844 editor.select(
845 SelectPhase::Update {
846 position: point_for_position.previous_valid,
847 goal_column: point_for_position.exact_unclipped.column(),
848 scroll_delta,
849 },
850 window,
851 cx,
852 );
853 }
854
855 fn mouse_moved(
856 editor: &mut Editor,
857 event: &MouseMoveEvent,
858 position_map: &PositionMap,
859 window: &mut Window,
860 cx: &mut Context<Editor>,
861 ) {
862 let text_hitbox = &position_map.text_hitbox;
863 let gutter_hitbox = &position_map.gutter_hitbox;
864 let modifiers = event.modifiers;
865 let gutter_hovered = gutter_hitbox.is_hovered(window);
866 editor.set_gutter_hovered(gutter_hovered, cx);
867
868 // Don't trigger hover popover if mouse is hovering over context menu
869 if text_hitbox.is_hovered(window) {
870 let point_for_position = position_map.point_for_position(event.position);
871
872 editor.update_hovered_link(
873 point_for_position,
874 &position_map.snapshot,
875 modifiers,
876 window,
877 cx,
878 );
879
880 if let Some(point) = point_for_position.as_valid() {
881 let anchor = position_map
882 .snapshot
883 .buffer_snapshot
884 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
885 hover_at(editor, Some(anchor), window, cx);
886 Self::update_visible_cursor(editor, point, position_map, window, cx);
887 } else {
888 hover_at(editor, None, window, cx);
889 }
890 } else {
891 editor.hide_hovered_link(cx);
892 hover_at(editor, None, window, cx);
893 if gutter_hovered {
894 cx.stop_propagation();
895 }
896 }
897 }
898
899 fn update_visible_cursor(
900 editor: &mut Editor,
901 point: DisplayPoint,
902 position_map: &PositionMap,
903 window: &mut Window,
904 cx: &mut Context<Editor>,
905 ) {
906 let snapshot = &position_map.snapshot;
907 let Some(hub) = editor.collaboration_hub() else {
908 return;
909 };
910 let start = snapshot.display_snapshot.clip_point(
911 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
912 Bias::Left,
913 );
914 let end = snapshot.display_snapshot.clip_point(
915 DisplayPoint::new(
916 point.row(),
917 (point.column() + 1).min(snapshot.line_len(point.row())),
918 ),
919 Bias::Right,
920 );
921
922 let range = snapshot
923 .buffer_snapshot
924 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
925 ..snapshot
926 .buffer_snapshot
927 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
928
929 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
930 return;
931 };
932 let key = crate::HoveredCursor {
933 replica_id: selection.replica_id,
934 selection_id: selection.selection.id,
935 };
936 editor.hovered_cursors.insert(
937 key.clone(),
938 cx.spawn_in(window, |editor, mut cx| async move {
939 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
940 editor
941 .update(&mut cx, |editor, cx| {
942 editor.hovered_cursors.remove(&key);
943 cx.notify();
944 })
945 .ok();
946 }),
947 );
948 cx.notify()
949 }
950
951 #[allow(clippy::too_many_arguments)]
952 fn layout_selections(
953 &self,
954 start_anchor: Anchor,
955 end_anchor: Anchor,
956 local_selections: &[Selection<Point>],
957 snapshot: &EditorSnapshot,
958 start_row: DisplayRow,
959 end_row: DisplayRow,
960 window: &mut Window,
961 cx: &mut App,
962 ) -> (
963 Vec<(PlayerColor, Vec<SelectionLayout>)>,
964 BTreeMap<DisplayRow, bool>,
965 Option<DisplayPoint>,
966 ) {
967 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
968 let mut active_rows = BTreeMap::new();
969 let mut newest_selection_head = None;
970 self.editor.update(cx, |editor, cx| {
971 if editor.show_local_selections {
972 let mut layouts = Vec::new();
973 let newest = editor.selections.newest(cx);
974 for selection in local_selections.iter().cloned() {
975 let is_empty = selection.start == selection.end;
976 let is_newest = selection == newest;
977
978 let layout = SelectionLayout::new(
979 selection,
980 editor.selections.line_mode,
981 editor.cursor_shape,
982 &snapshot.display_snapshot,
983 is_newest,
984 editor.leader_peer_id.is_none(),
985 None,
986 );
987 if is_newest {
988 newest_selection_head = Some(layout.head);
989 }
990
991 for row in cmp::max(layout.active_rows.start.0, start_row.0)
992 ..=cmp::min(layout.active_rows.end.0, end_row.0)
993 {
994 let contains_non_empty_selection =
995 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
996 *contains_non_empty_selection |= !is_empty;
997 }
998 layouts.push(layout);
999 }
1000
1001 let player = editor.current_user_player_color(cx);
1002 selections.push((player, layouts));
1003 }
1004
1005 if let Some(collaboration_hub) = &editor.collaboration_hub {
1006 // When following someone, render the local selections in their color.
1007 if let Some(leader_id) = editor.leader_peer_id {
1008 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1009 {
1010 if let Some(participant_index) = collaboration_hub
1011 .user_participant_indices(cx)
1012 .get(&collaborator.user_id)
1013 {
1014 if let Some((local_selection_style, _)) = selections.first_mut() {
1015 *local_selection_style = cx
1016 .theme()
1017 .players()
1018 .color_for_participant(participant_index.0);
1019 }
1020 }
1021 }
1022 }
1023
1024 let mut remote_selections = HashMap::default();
1025 for selection in snapshot.remote_selections_in_range(
1026 &(start_anchor..end_anchor),
1027 collaboration_hub.as_ref(),
1028 cx,
1029 ) {
1030 let selection_style =
1031 Self::get_participant_color(selection.participant_index, cx);
1032
1033 // Don't re-render the leader's selections, since the local selections
1034 // match theirs.
1035 if Some(selection.peer_id) == editor.leader_peer_id {
1036 continue;
1037 }
1038 let key = HoveredCursor {
1039 replica_id: selection.replica_id,
1040 selection_id: selection.selection.id,
1041 };
1042
1043 let is_shown =
1044 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1045
1046 remote_selections
1047 .entry(selection.replica_id)
1048 .or_insert((selection_style, Vec::new()))
1049 .1
1050 .push(SelectionLayout::new(
1051 selection.selection,
1052 selection.line_mode,
1053 selection.cursor_shape,
1054 &snapshot.display_snapshot,
1055 false,
1056 false,
1057 if is_shown { selection.user_name } else { None },
1058 ));
1059 }
1060
1061 selections.extend(remote_selections.into_values());
1062 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1063 let layouts = snapshot
1064 .buffer_snapshot
1065 .selections_in_range(&(start_anchor..end_anchor), true)
1066 .map(move |(_, line_mode, cursor_shape, selection)| {
1067 SelectionLayout::new(
1068 selection,
1069 line_mode,
1070 cursor_shape,
1071 &snapshot.display_snapshot,
1072 false,
1073 false,
1074 None,
1075 )
1076 })
1077 .collect::<Vec<_>>();
1078 let player = editor.current_user_player_color(cx);
1079 selections.push((player, layouts));
1080 }
1081 });
1082 (selections, active_rows, newest_selection_head)
1083 }
1084
1085 fn collect_cursors(
1086 &self,
1087 snapshot: &EditorSnapshot,
1088 cx: &mut App,
1089 ) -> Vec<(DisplayPoint, Hsla)> {
1090 let editor = self.editor.read(cx);
1091 let mut cursors = Vec::new();
1092 let mut skip_local = false;
1093 let mut add_cursor = |anchor: Anchor, color| {
1094 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1095 };
1096 // Remote cursors
1097 if let Some(collaboration_hub) = &editor.collaboration_hub {
1098 for remote_selection in snapshot.remote_selections_in_range(
1099 &(Anchor::min()..Anchor::max()),
1100 collaboration_hub.deref(),
1101 cx,
1102 ) {
1103 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1104 add_cursor(remote_selection.selection.head(), color.cursor);
1105 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1106 skip_local = true;
1107 }
1108 }
1109 }
1110 // Local cursors
1111 if !skip_local {
1112 let color = cx.theme().players().local().cursor;
1113 editor.selections.disjoint.iter().for_each(|selection| {
1114 add_cursor(selection.head(), color);
1115 });
1116 if let Some(ref selection) = editor.selections.pending_anchor() {
1117 add_cursor(selection.head(), color);
1118 }
1119 }
1120 cursors
1121 }
1122
1123 #[allow(clippy::too_many_arguments)]
1124 fn layout_visible_cursors(
1125 &self,
1126 snapshot: &EditorSnapshot,
1127 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1128 block_start_rows: &HashSet<DisplayRow>,
1129 visible_display_row_range: Range<DisplayRow>,
1130 line_layouts: &[LineWithInvisibles],
1131 text_hitbox: &Hitbox,
1132 content_origin: gpui::Point<Pixels>,
1133 scroll_position: gpui::Point<f32>,
1134 scroll_pixel_position: gpui::Point<Pixels>,
1135 line_height: Pixels,
1136 em_width: Pixels,
1137 em_advance: Pixels,
1138 autoscroll_containing_element: bool,
1139 window: &mut Window,
1140 cx: &mut App,
1141 ) -> Vec<CursorLayout> {
1142 let mut autoscroll_bounds = None;
1143 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1144 let mut cursors = Vec::new();
1145 for (player_color, selections) in selections {
1146 for selection in selections {
1147 let cursor_position = selection.head;
1148
1149 let in_range = visible_display_row_range.contains(&cursor_position.row());
1150 if (selection.is_local && !editor.show_local_cursors(window, cx))
1151 || !in_range
1152 || block_start_rows.contains(&cursor_position.row())
1153 {
1154 continue;
1155 }
1156
1157 let cursor_row_layout = &line_layouts
1158 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1159 let cursor_column = cursor_position.column() as usize;
1160
1161 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1162 let mut block_width =
1163 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1164 if block_width == Pixels::ZERO {
1165 block_width = em_advance;
1166 }
1167 let block_text = if let CursorShape::Block = selection.cursor_shape {
1168 snapshot
1169 .grapheme_at(cursor_position)
1170 .or_else(|| {
1171 if cursor_column == 0 {
1172 snapshot.placeholder_text().and_then(|s| {
1173 s.graphemes(true).next().map(|s| s.to_string().into())
1174 })
1175 } else {
1176 None
1177 }
1178 })
1179 .and_then(|text| {
1180 let len = text.len();
1181
1182 let font = cursor_row_layout
1183 .font_id_for_index(cursor_column)
1184 .and_then(|cursor_font_id| {
1185 window.text_system().get_font_for_id(cursor_font_id)
1186 })
1187 .unwrap_or(self.style.text.font());
1188
1189 // Invert the text color for the block cursor. Ensure that the text
1190 // color is opaque enough to be visible against the background color.
1191 //
1192 // 0.75 is an arbitrary threshold to determine if the background color is
1193 // opaque enough to use as a text color.
1194 //
1195 // TODO: In the future we should ensure themes have a `text_inverse` color.
1196 let color = if cx.theme().colors().editor_background.a < 0.75 {
1197 match cx.theme().appearance {
1198 Appearance::Dark => Hsla::black(),
1199 Appearance::Light => Hsla::white(),
1200 }
1201 } else {
1202 cx.theme().colors().editor_background
1203 };
1204
1205 window
1206 .text_system()
1207 .shape_line(
1208 text,
1209 cursor_row_layout.font_size,
1210 &[TextRun {
1211 len,
1212 font,
1213 color,
1214 background_color: None,
1215 strikethrough: None,
1216 underline: None,
1217 }],
1218 )
1219 .log_err()
1220 })
1221 } else {
1222 None
1223 };
1224
1225 let x = cursor_character_x - scroll_pixel_position.x;
1226 let y = (cursor_position.row().as_f32()
1227 - scroll_pixel_position.y / line_height)
1228 * line_height;
1229 if selection.is_newest {
1230 editor.pixel_position_of_newest_cursor = Some(point(
1231 text_hitbox.origin.x + x + block_width / 2.,
1232 text_hitbox.origin.y + y + line_height / 2.,
1233 ));
1234
1235 if autoscroll_containing_element {
1236 let top = text_hitbox.origin.y
1237 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1238 * line_height;
1239 let left = text_hitbox.origin.x
1240 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1241 .max(0.)
1242 * em_width;
1243
1244 let bottom = text_hitbox.origin.y
1245 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1246 * line_height;
1247 let right = text_hitbox.origin.x
1248 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1249 * em_width;
1250
1251 autoscroll_bounds =
1252 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1253 }
1254 }
1255
1256 let mut cursor = CursorLayout {
1257 color: player_color.cursor,
1258 block_width,
1259 origin: point(x, y),
1260 line_height,
1261 shape: selection.cursor_shape,
1262 block_text,
1263 cursor_name: None,
1264 };
1265 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1266 string: name,
1267 color: self.style.background,
1268 is_top_row: cursor_position.row().0 == 0,
1269 });
1270 cursor.layout(content_origin, cursor_name, window, cx);
1271 cursors.push(cursor);
1272 }
1273 }
1274 cursors
1275 });
1276
1277 if let Some(bounds) = autoscroll_bounds {
1278 window.request_autoscroll(bounds);
1279 }
1280
1281 cursor_layouts
1282 }
1283
1284 fn layout_scrollbars(
1285 &self,
1286 snapshot: &EditorSnapshot,
1287 scrollbar_range_data: ScrollbarRangeData,
1288 scroll_position: gpui::Point<f32>,
1289 non_visible_cursors: bool,
1290 window: &mut Window,
1291 cx: &mut App,
1292 ) -> AxisPair<Option<ScrollbarLayout>> {
1293 let letter_size = scrollbar_range_data.letter_size;
1294 let text_units_per_page = axis_pair(
1295 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1296 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1297 );
1298
1299 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1300 let show_scrollbars = self.editor.read(cx).show_scrollbars
1301 && match scrollbar_settings.show {
1302 ShowScrollbar::Auto => {
1303 let editor = self.editor.read(cx);
1304 let is_singleton = editor.is_singleton(cx);
1305 // Git
1306 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1307 ||
1308 // Buffer Search Results
1309 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1310 ||
1311 // Selected Symbol Occurrences
1312 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1313 ||
1314 // Diagnostics
1315 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1316 ||
1317 // Cursors out of sight
1318 non_visible_cursors
1319 ||
1320 // Scrollmanager
1321 editor.scroll_manager.scrollbars_visible()
1322 }
1323 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1324 ShowScrollbar::Always => true,
1325 ShowScrollbar::Never => false,
1326 };
1327
1328 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1329
1330 if snapshot.mode != EditorMode::Full {
1331 return axis_pair(None, None);
1332 }
1333
1334 let visible_range = axis_pair(
1335 axes.horizontal
1336 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1337 axes.vertical
1338 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1339 );
1340
1341 // If a drag took place after we started dragging the scrollbar,
1342 // cancel the scrollbar drag.
1343 if cx.has_active_drag() {
1344 self.editor.update(cx, |editor, cx| {
1345 editor
1346 .scroll_manager
1347 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1348 editor
1349 .scroll_manager
1350 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1351 });
1352 }
1353
1354 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1355
1356 let track_bounds = axis_pair(
1357 axes.horizontal.then(|| {
1358 Bounds::from_corners(
1359 point(
1360 text_bounds.bottom_left().x,
1361 text_bounds.bottom_left().y - self.style.scrollbar_width,
1362 ),
1363 point(
1364 text_bounds.bottom_right().x
1365 - if axes.vertical {
1366 self.style.scrollbar_width
1367 } else {
1368 px(0.)
1369 },
1370 text_bounds.bottom_right().y,
1371 ),
1372 )
1373 }),
1374 axes.vertical.then(|| {
1375 Bounds::from_corners(
1376 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1377 text_bounds.bottom_right(),
1378 )
1379 }),
1380 );
1381
1382 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1383 let total_text_units = axis_pair(
1384 Some(scroll_range_size.width / letter_size.width),
1385 Some(scroll_range_size.height / letter_size.height),
1386 );
1387
1388 let thumb_size = axis_pair(
1389 total_text_units
1390 .horizontal
1391 .zip(track_bounds.horizontal)
1392 .and_then(|(total_text_units_x, track_bounds_x)| {
1393 if text_units_per_page.horizontal >= total_text_units_x {
1394 return None;
1395 }
1396
1397 let thumb_percent =
1398 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1399
1400 Some(track_bounds_x.size.width * thumb_percent)
1401 }),
1402 total_text_units.vertical.zip(track_bounds.vertical).map(
1403 |(total_text_units_y, track_bounds_y)| {
1404 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1405
1406 track_bounds_y.size.height * thumb_percent
1407 },
1408 ),
1409 );
1410
1411 // NOTE: Space not taken by track bounds divided by text units not on screen
1412 let text_unit_size = axis_pair(
1413 thumb_size
1414 .horizontal
1415 .zip(track_bounds.horizontal)
1416 .zip(total_text_units.horizontal)
1417 .map(|((thumb_size, track_bounds), total_text_units)| {
1418 (track_bounds.size.width - thumb_size)
1419 / (total_text_units - text_units_per_page.horizontal).max(0.)
1420 }),
1421 thumb_size
1422 .vertical
1423 .zip(track_bounds.vertical)
1424 .zip(total_text_units.vertical)
1425 .map(|((thumb_size, track_bounds), total_text_units)| {
1426 (track_bounds.size.height - thumb_size)
1427 / (total_text_units - text_units_per_page.vertical).max(0.)
1428 }),
1429 );
1430
1431 let horizontal_scrollbar = track_bounds
1432 .horizontal
1433 .zip(visible_range.horizontal)
1434 .zip(text_unit_size.horizontal)
1435 .zip(thumb_size.horizontal)
1436 .map(
1437 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1438 hitbox: window.insert_hitbox(track_bounds, false),
1439 visible_range,
1440 text_unit_size,
1441 visible: show_scrollbars,
1442 thumb_size,
1443 axis: Axis::Horizontal,
1444 },
1445 );
1446
1447 let vertical_scrollbar = track_bounds
1448 .vertical
1449 .zip(visible_range.vertical)
1450 .zip(text_unit_size.vertical)
1451 .zip(thumb_size.vertical)
1452 .map(
1453 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1454 hitbox: window.insert_hitbox(track_bounds, false),
1455 visible_range,
1456 text_unit_size,
1457 visible: show_scrollbars,
1458 thumb_size,
1459 axis: Axis::Vertical,
1460 },
1461 );
1462
1463 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1464 }
1465
1466 #[allow(clippy::too_many_arguments)]
1467 fn prepaint_crease_toggles(
1468 &self,
1469 crease_toggles: &mut [Option<AnyElement>],
1470 line_height: Pixels,
1471 gutter_dimensions: &GutterDimensions,
1472 gutter_settings: crate::editor_settings::Gutter,
1473 scroll_pixel_position: gpui::Point<Pixels>,
1474 gutter_hitbox: &Hitbox,
1475 window: &mut Window,
1476 cx: &mut App,
1477 ) {
1478 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1479 if let Some(crease_toggle) = crease_toggle {
1480 debug_assert!(gutter_settings.folds);
1481 let available_space = size(
1482 AvailableSpace::MinContent,
1483 AvailableSpace::Definite(line_height * 0.55),
1484 );
1485 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1486
1487 let position = point(
1488 gutter_dimensions.width - gutter_dimensions.right_padding,
1489 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1490 );
1491 let centering_offset = point(
1492 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1493 (line_height - crease_toggle_size.height) / 2.,
1494 );
1495 let origin = gutter_hitbox.origin + position + centering_offset;
1496 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1497 }
1498 }
1499 }
1500
1501 #[allow(clippy::too_many_arguments)]
1502 fn prepaint_crease_trailers(
1503 &self,
1504 trailers: Vec<Option<AnyElement>>,
1505 lines: &[LineWithInvisibles],
1506 line_height: Pixels,
1507 content_origin: gpui::Point<Pixels>,
1508 scroll_pixel_position: gpui::Point<Pixels>,
1509 em_width: Pixels,
1510 window: &mut Window,
1511 cx: &mut App,
1512 ) -> Vec<Option<CreaseTrailerLayout>> {
1513 trailers
1514 .into_iter()
1515 .enumerate()
1516 .map(|(ix, element)| {
1517 let mut element = element?;
1518 let available_space = size(
1519 AvailableSpace::MinContent,
1520 AvailableSpace::Definite(line_height),
1521 );
1522 let size = element.layout_as_root(available_space, window, cx);
1523
1524 let line = &lines[ix];
1525 let padding = if line.width == Pixels::ZERO {
1526 Pixels::ZERO
1527 } else {
1528 4. * em_width
1529 };
1530 let position = point(
1531 scroll_pixel_position.x + line.width + padding,
1532 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1533 );
1534 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1535 let origin = content_origin + position + centering_offset;
1536 element.prepaint_as_root(origin, available_space, window, cx);
1537 Some(CreaseTrailerLayout {
1538 element,
1539 bounds: Bounds::new(origin, size),
1540 })
1541 })
1542 .collect()
1543 }
1544
1545 // Folds contained in a hunk are ignored apart from shrinking visual size
1546 // If a fold contains any hunks then that fold line is marked as modified
1547 fn layout_gutter_diff_hunks(
1548 &self,
1549 line_height: Pixels,
1550 gutter_hitbox: &Hitbox,
1551 display_rows: Range<DisplayRow>,
1552 snapshot: &EditorSnapshot,
1553 window: &mut Window,
1554 cx: &mut App,
1555 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1556 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1557 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1558
1559 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1560 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1561
1562 for hunk in snapshot
1563 .buffer_snapshot
1564 .diff_hunks_in_range(buffer_start..buffer_end)
1565 {
1566 if folded_buffers.contains(&hunk.buffer_id) {
1567 continue;
1568 }
1569
1570 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1571 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1572
1573 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1574 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1575
1576 let display_hunk = if hunk_display_start.column() != 0 {
1577 DisplayDiffHunk::Folded {
1578 display_row: hunk_display_start.row(),
1579 }
1580 } else {
1581 let mut end_row = hunk_display_end.row();
1582 if hunk_display_end.column() > 0 {
1583 end_row.0 += 1;
1584 }
1585 DisplayDiffHunk::Unfolded {
1586 status: hunk.status(),
1587 diff_base_byte_range: hunk.diff_base_byte_range,
1588 display_row_range: hunk_display_start.row()..end_row,
1589 multi_buffer_range: Anchor::range_in_buffer(
1590 hunk.excerpt_id,
1591 hunk.buffer_id,
1592 hunk.buffer_range,
1593 ),
1594 }
1595 };
1596
1597 display_hunks.push((display_hunk, None));
1598 }
1599
1600 let git_gutter_setting = ProjectSettings::get_global(cx)
1601 .git
1602 .git_gutter
1603 .unwrap_or_default();
1604 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1605 for (hunk, hitbox) in &mut display_hunks {
1606 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1607 let hunk_bounds =
1608 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1609 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1610 }
1611 }
1612 }
1613
1614 display_hunks
1615 }
1616
1617 #[allow(clippy::too_many_arguments)]
1618 fn layout_inline_blame(
1619 &self,
1620 display_row: DisplayRow,
1621 row_info: &RowInfo,
1622 line_layout: &LineWithInvisibles,
1623 crease_trailer: Option<&CreaseTrailerLayout>,
1624 em_width: Pixels,
1625 content_origin: gpui::Point<Pixels>,
1626 scroll_pixel_position: gpui::Point<Pixels>,
1627 line_height: Pixels,
1628 window: &mut Window,
1629 cx: &mut App,
1630 ) -> Option<AnyElement> {
1631 if !self
1632 .editor
1633 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1634 {
1635 return None;
1636 }
1637
1638 let workspace = self
1639 .editor
1640 .read(cx)
1641 .workspace
1642 .as_ref()
1643 .map(|(w, _)| w.clone());
1644
1645 let editor = self.editor.read(cx);
1646 let blame = editor.blame.clone()?;
1647 let padding = {
1648 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1649 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1650
1651 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1652
1653 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1654 match &inline_completion.completion {
1655 InlineCompletion::Edit {
1656 display_mode: EditDisplayMode::TabAccept(_),
1657 ..
1658 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1659 _ => {}
1660 }
1661 }
1662
1663 padding * em_width
1664 };
1665
1666 let blame_entry = blame
1667 .update(cx, |blame, cx| {
1668 blame.blame_for_rows(&[*row_info], cx).next()
1669 })
1670 .flatten()?;
1671
1672 let mut element =
1673 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1674
1675 let start_y = content_origin.y
1676 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1677
1678 let start_x = {
1679 let line_end = if let Some(crease_trailer) = crease_trailer {
1680 crease_trailer.bounds.right()
1681 } else {
1682 content_origin.x - scroll_pixel_position.x + line_layout.width
1683 };
1684
1685 let padded_line_end = line_end + padding;
1686
1687 let min_column_in_pixels = ProjectSettings::get_global(cx)
1688 .git
1689 .inline_blame
1690 .and_then(|settings| settings.min_column)
1691 .map(|col| self.column_pixels(col as usize, window, cx))
1692 .unwrap_or(px(0.));
1693 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1694
1695 cmp::max(padded_line_end, min_start)
1696 };
1697
1698 let absolute_offset = point(start_x, start_y);
1699 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1700
1701 Some(element)
1702 }
1703
1704 #[allow(clippy::too_many_arguments)]
1705 fn layout_blame_entries(
1706 &self,
1707 buffer_rows: &[RowInfo],
1708 em_width: Pixels,
1709 scroll_position: gpui::Point<f32>,
1710 line_height: Pixels,
1711 gutter_hitbox: &Hitbox,
1712 max_width: Option<Pixels>,
1713 window: &mut Window,
1714 cx: &mut App,
1715 ) -> Option<Vec<AnyElement>> {
1716 if !self
1717 .editor
1718 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1719 {
1720 return None;
1721 }
1722
1723 let blame = self.editor.read(cx).blame.clone()?;
1724 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1725 blame.blame_for_rows(buffer_rows, cx).collect()
1726 });
1727
1728 let width = if let Some(max_width) = max_width {
1729 AvailableSpace::Definite(max_width)
1730 } else {
1731 AvailableSpace::MaxContent
1732 };
1733 let scroll_top = scroll_position.y * line_height;
1734 let start_x = em_width;
1735
1736 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1737
1738 let shaped_lines = blamed_rows
1739 .into_iter()
1740 .enumerate()
1741 .flat_map(|(ix, blame_entry)| {
1742 if let Some(blame_entry) = blame_entry {
1743 let mut element = render_blame_entry(
1744 ix,
1745 &blame,
1746 blame_entry,
1747 &self.style,
1748 &mut last_used_color,
1749 self.editor.clone(),
1750 cx,
1751 );
1752
1753 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1754 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1755
1756 element.prepaint_as_root(
1757 absolute_offset,
1758 size(width, AvailableSpace::MinContent),
1759 window,
1760 cx,
1761 );
1762
1763 Some(element)
1764 } else {
1765 None
1766 }
1767 })
1768 .collect();
1769
1770 Some(shaped_lines)
1771 }
1772
1773 #[allow(clippy::too_many_arguments)]
1774 fn layout_indent_guides(
1775 &self,
1776 content_origin: gpui::Point<Pixels>,
1777 text_origin: gpui::Point<Pixels>,
1778 visible_buffer_range: Range<MultiBufferRow>,
1779 scroll_pixel_position: gpui::Point<Pixels>,
1780 line_height: Pixels,
1781 snapshot: &DisplaySnapshot,
1782 window: &mut Window,
1783 cx: &mut App,
1784 ) -> Option<Vec<IndentGuideLayout>> {
1785 let indent_guides = self.editor.update(cx, |editor, cx| {
1786 editor.indent_guides(visible_buffer_range, snapshot, cx)
1787 })?;
1788
1789 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1790 editor
1791 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1792 .unwrap_or_default()
1793 });
1794
1795 Some(
1796 indent_guides
1797 .into_iter()
1798 .enumerate()
1799 .filter_map(|(i, indent_guide)| {
1800 let single_indent_width =
1801 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1802 let total_width = single_indent_width * indent_guide.depth as f32;
1803 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1804 if start_x >= text_origin.x {
1805 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1806 indent_guide.start_row..indent_guide.end_row,
1807 line_height,
1808 snapshot,
1809 );
1810
1811 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1812
1813 Some(IndentGuideLayout {
1814 origin: point(start_x, start_y),
1815 length,
1816 single_indent_width,
1817 depth: indent_guide.depth,
1818 active: active_indent_guide_indices.contains(&i),
1819 settings: indent_guide.settings,
1820 })
1821 } else {
1822 None
1823 }
1824 })
1825 .collect(),
1826 )
1827 }
1828
1829 fn calculate_indent_guide_bounds(
1830 row_range: Range<MultiBufferRow>,
1831 line_height: Pixels,
1832 snapshot: &DisplaySnapshot,
1833 ) -> (gpui::Pixels, gpui::Pixels) {
1834 let start_point = Point::new(row_range.start.0, 0);
1835 let end_point = Point::new(row_range.end.0, 0);
1836
1837 let row_range = start_point.to_display_point(snapshot).row()
1838 ..end_point.to_display_point(snapshot).row();
1839
1840 let mut prev_line = start_point;
1841 prev_line.row = prev_line.row.saturating_sub(1);
1842 let prev_line = prev_line.to_display_point(snapshot).row();
1843
1844 let mut cons_line = end_point;
1845 cons_line.row += 1;
1846 let cons_line = cons_line.to_display_point(snapshot).row();
1847
1848 let mut offset_y = row_range.start.0 as f32 * line_height;
1849 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1850
1851 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1852 if row_range.end == cons_line {
1853 length += line_height;
1854 }
1855
1856 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1857 // we want to extend the indent guide to the start of the block.
1858 let mut block_height = 0;
1859 let mut block_offset = 0;
1860 let mut found_excerpt_header = false;
1861 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1862 if matches!(block, Block::ExcerptBoundary { .. }) {
1863 found_excerpt_header = true;
1864 break;
1865 }
1866 block_offset += block.height();
1867 block_height += block.height();
1868 }
1869 if !found_excerpt_header {
1870 offset_y -= block_offset as f32 * line_height;
1871 length += block_height as f32 * line_height;
1872 }
1873
1874 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1875 // we want to ensure that the indent guide stops before the excerpt header.
1876 let mut block_height = 0;
1877 let mut found_excerpt_header = false;
1878 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1879 if matches!(block, Block::ExcerptBoundary { .. }) {
1880 found_excerpt_header = true;
1881 }
1882 block_height += block.height();
1883 }
1884 if found_excerpt_header {
1885 length -= block_height as f32 * line_height;
1886 }
1887
1888 (offset_y, length)
1889 }
1890
1891 #[allow(clippy::too_many_arguments)]
1892 fn layout_run_indicators(
1893 &self,
1894 line_height: Pixels,
1895 range: Range<DisplayRow>,
1896 scroll_pixel_position: gpui::Point<Pixels>,
1897 gutter_dimensions: &GutterDimensions,
1898 gutter_hitbox: &Hitbox,
1899 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1900 snapshot: &EditorSnapshot,
1901 window: &mut Window,
1902 cx: &mut App,
1903 ) -> Vec<AnyElement> {
1904 self.editor.update(cx, |editor, cx| {
1905 let active_task_indicator_row =
1906 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1907 deployed_from_indicator,
1908 actions,
1909 ..
1910 })) = editor.context_menu.borrow().as_ref()
1911 {
1912 actions
1913 .tasks
1914 .as_ref()
1915 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1916 .or(*deployed_from_indicator)
1917 } else {
1918 None
1919 };
1920
1921 let offset_range_start = snapshot
1922 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1923 .to_offset(&snapshot.buffer_snapshot);
1924 let offset_range_end = snapshot
1925 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1926 .to_offset(&snapshot.buffer_snapshot);
1927
1928 editor
1929 .tasks
1930 .iter()
1931 .filter_map(|(_, tasks)| {
1932 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1933 return None;
1934 }
1935 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1936 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1937 let buffer_folded = snapshot
1938 .buffer_snapshot
1939 .buffer_line_for_row(multibuffer_row)
1940 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1941 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1942 .unwrap_or(false);
1943 if buffer_folded {
1944 return None;
1945 }
1946
1947 if snapshot.is_line_folded(multibuffer_row) {
1948 // Skip folded indicators, unless it's the starting line of a fold.
1949 if multibuffer_row
1950 .0
1951 .checked_sub(1)
1952 .map_or(false, |previous_row| {
1953 snapshot.is_line_folded(MultiBufferRow(previous_row))
1954 })
1955 {
1956 return None;
1957 }
1958 }
1959 let display_row = multibuffer_point.to_display_point(snapshot).row();
1960 let button = editor.render_run_indicator(
1961 &self.style,
1962 Some(display_row) == active_task_indicator_row,
1963 display_row,
1964 cx,
1965 );
1966
1967 let button = prepaint_gutter_button(
1968 button,
1969 display_row,
1970 line_height,
1971 gutter_dimensions,
1972 scroll_pixel_position,
1973 gutter_hitbox,
1974 rows_with_hunk_bounds,
1975 window,
1976 cx,
1977 );
1978 Some(button)
1979 })
1980 .collect_vec()
1981 })
1982 }
1983
1984 #[allow(clippy::too_many_arguments)]
1985 fn layout_code_actions_indicator(
1986 &self,
1987 line_height: Pixels,
1988 newest_selection_head: DisplayPoint,
1989 scroll_pixel_position: gpui::Point<Pixels>,
1990 gutter_dimensions: &GutterDimensions,
1991 gutter_hitbox: &Hitbox,
1992 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1993 window: &mut Window,
1994 cx: &mut App,
1995 ) -> Option<AnyElement> {
1996 let mut active = false;
1997 let mut button = None;
1998 let row = newest_selection_head.row();
1999 self.editor.update(cx, |editor, cx| {
2000 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2001 deployed_from_indicator,
2002 ..
2003 })) = editor.context_menu.borrow().as_ref()
2004 {
2005 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2006 };
2007 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2008 });
2009
2010 let button = prepaint_gutter_button(
2011 button?,
2012 row,
2013 line_height,
2014 gutter_dimensions,
2015 scroll_pixel_position,
2016 gutter_hitbox,
2017 rows_with_hunk_bounds,
2018 window,
2019 cx,
2020 );
2021
2022 Some(button)
2023 }
2024
2025 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2026 if let Some(index) = participant_index {
2027 cx.theme().players().color_for_participant(index.0)
2028 } else {
2029 cx.theme().players().absent()
2030 }
2031 }
2032
2033 fn calculate_relative_line_numbers(
2034 &self,
2035 snapshot: &EditorSnapshot,
2036 rows: &Range<DisplayRow>,
2037 relative_to: Option<DisplayRow>,
2038 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2039 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2040 let Some(relative_to) = relative_to else {
2041 return relative_rows;
2042 };
2043
2044 let start = rows.start.min(relative_to);
2045 let end = rows.end.max(relative_to);
2046
2047 let buffer_rows = snapshot
2048 .row_infos(start)
2049 .take(1 + end.minus(start) as usize)
2050 .collect::<Vec<_>>();
2051
2052 let head_idx = relative_to.minus(start);
2053 let mut delta = 1;
2054 let mut i = head_idx + 1;
2055 while i < buffer_rows.len() as u32 {
2056 if buffer_rows[i as usize].buffer_row.is_some() {
2057 if rows.contains(&DisplayRow(i + start.0)) {
2058 relative_rows.insert(DisplayRow(i + start.0), delta);
2059 }
2060 delta += 1;
2061 }
2062 i += 1;
2063 }
2064 delta = 1;
2065 i = head_idx.min(buffer_rows.len() as u32 - 1);
2066 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2067 i -= 1;
2068 }
2069
2070 while i > 0 {
2071 i -= 1;
2072 if buffer_rows[i as usize].buffer_row.is_some() {
2073 if rows.contains(&DisplayRow(i + start.0)) {
2074 relative_rows.insert(DisplayRow(i + start.0), delta);
2075 }
2076 delta += 1;
2077 }
2078 }
2079
2080 relative_rows
2081 }
2082
2083 #[allow(clippy::too_many_arguments)]
2084 fn layout_line_numbers(
2085 &self,
2086 gutter_hitbox: Option<&Hitbox>,
2087 gutter_dimensions: GutterDimensions,
2088 line_height: Pixels,
2089 scroll_position: gpui::Point<f32>,
2090 rows: Range<DisplayRow>,
2091 buffer_rows: &[RowInfo],
2092 newest_selection_head: Option<DisplayPoint>,
2093 snapshot: &EditorSnapshot,
2094 window: &mut Window,
2095 cx: &mut App,
2096 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2097 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2098 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2099 });
2100 if !include_line_numbers {
2101 return Arc::default();
2102 }
2103
2104 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2105 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2106 let newest = editor.selections.newest::<Point>(cx);
2107 SelectionLayout::new(
2108 newest,
2109 editor.selections.line_mode,
2110 editor.cursor_shape,
2111 &snapshot.display_snapshot,
2112 true,
2113 true,
2114 None,
2115 )
2116 .head
2117 });
2118 let is_relative = editor.should_use_relative_line_numbers(cx);
2119 (newest_selection_head, is_relative)
2120 });
2121
2122 let relative_to = if is_relative {
2123 Some(newest_selection_head.row())
2124 } else {
2125 None
2126 };
2127 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2128 let mut line_number = String::new();
2129 let line_numbers = buffer_rows
2130 .into_iter()
2131 .enumerate()
2132 .flat_map(|(ix, row_info)| {
2133 let display_row = DisplayRow(rows.start.0 + ix as u32);
2134 line_number.clear();
2135 let non_relative_number = row_info.buffer_row? + 1;
2136 let number = relative_rows
2137 .get(&display_row)
2138 .unwrap_or(&non_relative_number);
2139 write!(&mut line_number, "{number}").unwrap();
2140 if row_info.diff_status == Some(DiffHunkStatus::Removed) {
2141 return None;
2142 }
2143
2144 let color = cx.theme().colors().editor_line_number;
2145 let shaped_line = self
2146 .shape_line_number(SharedString::from(&line_number), color, window)
2147 .log_err()?;
2148 let scroll_top = scroll_position.y * line_height;
2149 let line_origin = gutter_hitbox.map(|hitbox| {
2150 hitbox.origin
2151 + point(
2152 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2153 ix as f32 * line_height - (scroll_top % line_height),
2154 )
2155 });
2156
2157 #[cfg(not(test))]
2158 let hitbox = line_origin.map(|line_origin| {
2159 window.insert_hitbox(
2160 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2161 false,
2162 )
2163 });
2164 #[cfg(test)]
2165 let hitbox = {
2166 let _ = line_origin;
2167 None
2168 };
2169
2170 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2171 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2172 let line_number = LineNumberLayout {
2173 shaped_line,
2174 hitbox,
2175 display_row,
2176 };
2177 Some((multi_buffer_row, line_number))
2178 })
2179 .collect();
2180 Arc::new(line_numbers)
2181 }
2182
2183 fn layout_crease_toggles(
2184 &self,
2185 rows: Range<DisplayRow>,
2186 row_infos: &[RowInfo],
2187 active_rows: &BTreeMap<DisplayRow, bool>,
2188 snapshot: &EditorSnapshot,
2189 window: &mut Window,
2190 cx: &mut App,
2191 ) -> Vec<Option<AnyElement>> {
2192 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2193 && snapshot.mode == EditorMode::Full
2194 && self.editor.read(cx).is_singleton(cx);
2195 if include_fold_statuses {
2196 row_infos
2197 .into_iter()
2198 .enumerate()
2199 .map(|(ix, info)| {
2200 let row = info.multibuffer_row?;
2201 let display_row = DisplayRow(rows.start.0 + ix as u32);
2202 let active = active_rows.contains_key(&display_row);
2203
2204 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2205 })
2206 .collect()
2207 } else {
2208 Vec::new()
2209 }
2210 }
2211
2212 fn layout_crease_trailers(
2213 &self,
2214 buffer_rows: impl IntoIterator<Item = RowInfo>,
2215 snapshot: &EditorSnapshot,
2216 window: &mut Window,
2217 cx: &mut App,
2218 ) -> Vec<Option<AnyElement>> {
2219 buffer_rows
2220 .into_iter()
2221 .map(|row_info| {
2222 if let Some(row) = row_info.multibuffer_row {
2223 snapshot.render_crease_trailer(row, window, cx)
2224 } else {
2225 None
2226 }
2227 })
2228 .collect()
2229 }
2230
2231 fn layout_lines(
2232 rows: Range<DisplayRow>,
2233 snapshot: &EditorSnapshot,
2234 style: &EditorStyle,
2235 editor_width: Pixels,
2236 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2237 window: &mut Window,
2238 cx: &mut App,
2239 ) -> Vec<LineWithInvisibles> {
2240 if rows.start >= rows.end {
2241 return Vec::new();
2242 }
2243
2244 // Show the placeholder when the editor is empty
2245 if snapshot.is_empty() {
2246 let font_size = style.text.font_size.to_pixels(window.rem_size());
2247 let placeholder_color = cx.theme().colors().text_placeholder;
2248 let placeholder_text = snapshot.placeholder_text();
2249
2250 let placeholder_lines = placeholder_text
2251 .as_ref()
2252 .map_or("", AsRef::as_ref)
2253 .split('\n')
2254 .skip(rows.start.0 as usize)
2255 .chain(iter::repeat(""))
2256 .take(rows.len());
2257 placeholder_lines
2258 .filter_map(move |line| {
2259 let run = TextRun {
2260 len: line.len(),
2261 font: style.text.font(),
2262 color: placeholder_color,
2263 background_color: None,
2264 underline: Default::default(),
2265 strikethrough: None,
2266 };
2267 window
2268 .text_system()
2269 .shape_line(line.to_string().into(), font_size, &[run])
2270 .log_err()
2271 })
2272 .map(|line| LineWithInvisibles {
2273 width: line.width,
2274 len: line.len,
2275 fragments: smallvec![LineFragment::Text(line)],
2276 invisibles: Vec::new(),
2277 font_size,
2278 })
2279 .collect()
2280 } else {
2281 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2282 LineWithInvisibles::from_chunks(
2283 chunks,
2284 &style,
2285 MAX_LINE_LEN,
2286 rows.len(),
2287 snapshot.mode,
2288 editor_width,
2289 is_row_soft_wrapped,
2290 window,
2291 cx,
2292 )
2293 }
2294 }
2295
2296 #[allow(clippy::too_many_arguments)]
2297 fn prepaint_lines(
2298 &self,
2299 start_row: DisplayRow,
2300 line_layouts: &mut [LineWithInvisibles],
2301 line_height: Pixels,
2302 scroll_pixel_position: gpui::Point<Pixels>,
2303 content_origin: gpui::Point<Pixels>,
2304 window: &mut Window,
2305 cx: &mut App,
2306 ) -> SmallVec<[AnyElement; 1]> {
2307 let mut line_elements = SmallVec::new();
2308 for (ix, line) in line_layouts.iter_mut().enumerate() {
2309 let row = start_row + DisplayRow(ix as u32);
2310 line.prepaint(
2311 line_height,
2312 scroll_pixel_position,
2313 row,
2314 content_origin,
2315 &mut line_elements,
2316 window,
2317 cx,
2318 );
2319 }
2320 line_elements
2321 }
2322
2323 #[allow(clippy::too_many_arguments)]
2324 fn render_block(
2325 &self,
2326 block: &Block,
2327 available_width: AvailableSpace,
2328 block_id: BlockId,
2329 block_row_start: DisplayRow,
2330 snapshot: &EditorSnapshot,
2331 text_x: Pixels,
2332 rows: &Range<DisplayRow>,
2333 line_layouts: &[LineWithInvisibles],
2334 gutter_dimensions: &GutterDimensions,
2335 line_height: Pixels,
2336 em_width: Pixels,
2337 text_hitbox: &Hitbox,
2338 editor_width: Pixels,
2339 scroll_width: &mut Pixels,
2340 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2341 selections: &[Selection<Point>],
2342 selected_buffer_ids: &Vec<BufferId>,
2343 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2344 sticky_header_excerpt_id: Option<ExcerptId>,
2345 window: &mut Window,
2346 cx: &mut App,
2347 ) -> (AnyElement, Size<Pixels>) {
2348 let mut element = match block {
2349 Block::Custom(block) => {
2350 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2351 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2352 let align_to = block_start.to_display_point(snapshot);
2353 let anchor_x = text_x
2354 + if rows.contains(&align_to.row()) {
2355 line_layouts[align_to.row().minus(rows.start) as usize]
2356 .x_for_index(align_to.column() as usize)
2357 } else {
2358 layout_line(
2359 align_to.row(),
2360 snapshot,
2361 &self.style,
2362 editor_width,
2363 is_row_soft_wrapped,
2364 window,
2365 cx,
2366 )
2367 .x_for_index(align_to.column() as usize)
2368 };
2369
2370 let selected = selections
2371 .binary_search_by(|selection| {
2372 if selection.end <= block_start {
2373 Ordering::Less
2374 } else if selection.start >= block_end {
2375 Ordering::Greater
2376 } else {
2377 Ordering::Equal
2378 }
2379 })
2380 .is_ok();
2381
2382 div()
2383 .size_full()
2384 .child(block.render(&mut BlockContext {
2385 window,
2386 app: cx,
2387 anchor_x,
2388 gutter_dimensions,
2389 line_height,
2390 em_width,
2391 block_id,
2392 selected,
2393 max_width: text_hitbox.size.width.max(*scroll_width),
2394 editor_style: &self.style,
2395 }))
2396 .into_any()
2397 }
2398
2399 Block::FoldedBuffer {
2400 first_excerpt,
2401 prev_excerpt,
2402 show_excerpt_controls,
2403 height,
2404 } => {
2405 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2406 let mut result = v_flex().id(block_id).w_full();
2407
2408 if let Some(prev_excerpt) = prev_excerpt {
2409 if *show_excerpt_controls {
2410 result = result.child(self.render_expand_excerpt_control(
2411 block_id,
2412 ExpandExcerptDirection::Down,
2413 prev_excerpt.id,
2414 gutter_dimensions,
2415 window,
2416 cx,
2417 ));
2418 }
2419 }
2420
2421 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2422 result
2423 .child(self.render_buffer_header(
2424 first_excerpt,
2425 true,
2426 selected,
2427 jump_data,
2428 window,
2429 cx,
2430 ))
2431 .into_any_element()
2432 }
2433
2434 Block::ExcerptBoundary {
2435 prev_excerpt,
2436 next_excerpt,
2437 show_excerpt_controls,
2438 height,
2439 starts_new_buffer,
2440 } => {
2441 let color = cx.theme().colors().clone();
2442 let mut result = v_flex().id(block_id).w_full();
2443
2444 if let Some(prev_excerpt) = prev_excerpt {
2445 if *show_excerpt_controls {
2446 result = result.child(self.render_expand_excerpt_control(
2447 block_id,
2448 ExpandExcerptDirection::Down,
2449 prev_excerpt.id,
2450 gutter_dimensions,
2451 window,
2452 cx,
2453 ));
2454 }
2455 }
2456
2457 if let Some(next_excerpt) = next_excerpt {
2458 let jump_data =
2459 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2460
2461 if *starts_new_buffer {
2462 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2463 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2464
2465 result = result.child(self.render_buffer_header(
2466 next_excerpt,
2467 false,
2468 selected,
2469 jump_data,
2470 window,
2471 cx,
2472 ));
2473 } else {
2474 result = result
2475 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2476 }
2477
2478 if *show_excerpt_controls {
2479 result = result.child(self.render_expand_excerpt_control(
2480 block_id,
2481 ExpandExcerptDirection::Up,
2482 next_excerpt.id,
2483 gutter_dimensions,
2484 window,
2485 cx,
2486 ));
2487 }
2488 } else {
2489 if *show_excerpt_controls {
2490 result = result.child(
2491 h_flex()
2492 .relative()
2493 .child(
2494 div()
2495 .top(px(0.))
2496 .absolute()
2497 .w_full()
2498 .h_px()
2499 .bg(color.border_variant),
2500 )
2501 .child(self.render_expand_excerpt_control(
2502 block_id,
2503 ExpandExcerptDirection::Up,
2504 next_excerpt.id,
2505 gutter_dimensions,
2506 window,
2507 cx,
2508 )),
2509 );
2510 }
2511 };
2512 }
2513
2514 result.into_any()
2515 }
2516 };
2517
2518 // Discover the element's content height, then round up to the nearest multiple of line height.
2519 let preliminary_size = element.layout_as_root(
2520 size(available_width, AvailableSpace::MinContent),
2521 window,
2522 cx,
2523 );
2524 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2525 let final_size = if preliminary_size.height == quantized_height {
2526 preliminary_size
2527 } else {
2528 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2529 };
2530
2531 if let BlockId::Custom(custom_block_id) = block_id {
2532 if block.height() > 0 {
2533 let element_height_in_lines =
2534 ((final_size.height / line_height).ceil() as u32).max(1);
2535 if element_height_in_lines != block.height() {
2536 resized_blocks.insert(custom_block_id, element_height_in_lines);
2537 }
2538 }
2539 }
2540
2541 (element, final_size)
2542 }
2543
2544 fn render_buffer_header(
2545 &self,
2546 for_excerpt: &ExcerptInfo,
2547 is_folded: bool,
2548 is_selected: bool,
2549 jump_data: JumpData,
2550 window: &mut Window,
2551 cx: &mut App,
2552 ) -> Div {
2553 let include_root = self
2554 .editor
2555 .read(cx)
2556 .project
2557 .as_ref()
2558 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2559 .unwrap_or_default();
2560 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2561 let filename = path
2562 .as_ref()
2563 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2564 let parent_path = path.as_ref().and_then(|path| {
2565 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2566 });
2567 let focus_handle = self.editor.focus_handle(cx);
2568 let colors = cx.theme().colors();
2569
2570 div()
2571 .px_2()
2572 .pt_2()
2573 .w_full()
2574 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2575 .child(
2576 h_flex()
2577 .size_full()
2578 .gap_2()
2579 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2580 .pl_0p5()
2581 .pr_5()
2582 .rounded_md()
2583 .shadow_md()
2584 .border_1()
2585 .map(|div| {
2586 let border_color = if is_selected && is_folded {
2587 colors.border_focused
2588 } else {
2589 colors.border
2590 };
2591 div.border_color(border_color)
2592 })
2593 .bg(colors.editor_subheader_background)
2594 .hover(|style| style.bg(colors.element_hover))
2595 .map(|header| {
2596 let editor = self.editor.clone();
2597 let buffer_id = for_excerpt.buffer_id;
2598 let toggle_chevron_icon =
2599 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2600 header.child(
2601 div()
2602 .hover(|style| style.bg(colors.element_selected))
2603 .rounded_sm()
2604 .child(
2605 ButtonLike::new("toggle-buffer-fold")
2606 .style(ui::ButtonStyle::Transparent)
2607 .size(ButtonSize::Large)
2608 .width(px(30.).into())
2609 .children(toggle_chevron_icon)
2610 .tooltip({
2611 let focus_handle = focus_handle.clone();
2612 move |window, cx| {
2613 Tooltip::for_action_in(
2614 "Toggle Excerpt Fold",
2615 &ToggleFold,
2616 &focus_handle,
2617 window,
2618 cx,
2619 )
2620 }
2621 })
2622 .on_click(move |_, _, cx| {
2623 if is_folded {
2624 editor.update(cx, |editor, cx| {
2625 editor.unfold_buffer(buffer_id, cx);
2626 });
2627 } else {
2628 editor.update(cx, |editor, cx| {
2629 editor.fold_buffer(buffer_id, cx);
2630 });
2631 }
2632 }),
2633 ),
2634 )
2635 })
2636 .children(
2637 self.editor
2638 .read(cx)
2639 .addons
2640 .values()
2641 .filter_map(|addon| {
2642 addon.render_buffer_header_controls(for_excerpt, window, cx)
2643 })
2644 .take(1),
2645 )
2646 .child(
2647 h_flex()
2648 .cursor_pointer()
2649 .id("path header block")
2650 .size_full()
2651 .justify_between()
2652 .child(
2653 h_flex()
2654 .gap_2()
2655 .child(
2656 filename
2657 .map(SharedString::from)
2658 .unwrap_or_else(|| "untitled".into()),
2659 )
2660 .when_some(parent_path, |then, path| {
2661 then.child(div().child(path).text_color(colors.text_muted))
2662 }),
2663 )
2664 .when(is_selected, |el| {
2665 el.child(
2666 h_flex()
2667 .id("jump-to-file-button")
2668 .gap_2p5()
2669 .child(Label::new("Jump To File"))
2670 .children(
2671 KeyBinding::for_action_in(
2672 &OpenExcerpts,
2673 &focus_handle,
2674 window,
2675 )
2676 .map(|binding| binding.into_any_element()),
2677 ),
2678 )
2679 })
2680 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2681 .on_click(window.listener_for(&self.editor, {
2682 move |editor, e: &ClickEvent, window, cx| {
2683 editor.open_excerpts_common(
2684 Some(jump_data.clone()),
2685 e.down.modifiers.secondary(),
2686 window,
2687 cx,
2688 );
2689 }
2690 })),
2691 ),
2692 )
2693 }
2694
2695 fn render_expand_excerpt_control(
2696 &self,
2697 block_id: BlockId,
2698 direction: ExpandExcerptDirection,
2699 excerpt_id: ExcerptId,
2700 gutter_dimensions: &GutterDimensions,
2701 window: &Window,
2702 cx: &mut App,
2703 ) -> impl IntoElement {
2704 let color = cx.theme().colors().clone();
2705 let hover_color = color.border_variant.opacity(0.5);
2706 let focus_handle = self.editor.focus_handle(cx).clone();
2707
2708 let icon_offset =
2709 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2710 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2711 let group_name = if direction == ExpandExcerptDirection::Down {
2712 "expand-down"
2713 } else {
2714 "expand-up"
2715 };
2716
2717 let expand_area = |id: SharedString| {
2718 h_flex()
2719 .id(id)
2720 .w_full()
2721 .cursor_pointer()
2722 .block_mouse_down()
2723 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2724 .hover(|style| style.bg(hover_color))
2725 .tooltip({
2726 let focus_handle = focus_handle.clone();
2727 move |window, cx| {
2728 Tooltip::for_action_in(
2729 "Expand Excerpt",
2730 &ExpandExcerpts { lines: 0 },
2731 &focus_handle,
2732 window,
2733 cx,
2734 )
2735 }
2736 })
2737 };
2738
2739 expand_area(
2740 format!(
2741 "block-{}-{}",
2742 block_id,
2743 if direction == ExpandExcerptDirection::Down {
2744 "down"
2745 } else {
2746 "up"
2747 }
2748 )
2749 .into(),
2750 )
2751 .group(group_name)
2752 .child(
2753 h_flex()
2754 .w(icon_offset)
2755 .h(header_height)
2756 .flex_none()
2757 .justify_end()
2758 .child(
2759 ButtonLike::new("expand-icon")
2760 .style(ButtonStyle::Transparent)
2761 .child(
2762 svg()
2763 .path(if direction == ExpandExcerptDirection::Down {
2764 IconName::ArrowDownFromLine.path()
2765 } else {
2766 IconName::ArrowUpFromLine.path()
2767 })
2768 .size(IconSize::XSmall.rems())
2769 .text_color(cx.theme().colors().editor_line_number)
2770 .group_hover(group_name, |style| {
2771 style.text_color(cx.theme().colors().editor_active_line_number)
2772 }),
2773 ),
2774 ),
2775 )
2776 .on_click(window.listener_for(&self.editor, {
2777 move |editor, _, _, cx| {
2778 editor.expand_excerpt(excerpt_id, direction, cx);
2779 cx.stop_propagation();
2780 }
2781 }))
2782 }
2783
2784 #[allow(clippy::too_many_arguments)]
2785 fn render_blocks(
2786 &self,
2787 rows: Range<DisplayRow>,
2788 snapshot: &EditorSnapshot,
2789 hitbox: &Hitbox,
2790 text_hitbox: &Hitbox,
2791 editor_width: Pixels,
2792 scroll_width: &mut Pixels,
2793 gutter_dimensions: &GutterDimensions,
2794 em_width: Pixels,
2795 text_x: Pixels,
2796 line_height: Pixels,
2797 line_layouts: &[LineWithInvisibles],
2798 selections: &[Selection<Point>],
2799 selected_buffer_ids: &Vec<BufferId>,
2800 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2801 sticky_header_excerpt_id: Option<ExcerptId>,
2802 window: &mut Window,
2803 cx: &mut App,
2804 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2805 let (fixed_blocks, non_fixed_blocks) = snapshot
2806 .blocks_in_range(rows.clone())
2807 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2808
2809 let mut focused_block = self
2810 .editor
2811 .update(cx, |editor, _| editor.take_focused_block());
2812 let mut fixed_block_max_width = Pixels::ZERO;
2813 let mut blocks = Vec::new();
2814 let mut resized_blocks = HashMap::default();
2815
2816 for (row, block) in fixed_blocks {
2817 let block_id = block.id();
2818
2819 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2820 focused_block = None;
2821 }
2822
2823 let (element, element_size) = self.render_block(
2824 block,
2825 AvailableSpace::MinContent,
2826 block_id,
2827 row,
2828 snapshot,
2829 text_x,
2830 &rows,
2831 line_layouts,
2832 gutter_dimensions,
2833 line_height,
2834 em_width,
2835 text_hitbox,
2836 editor_width,
2837 scroll_width,
2838 &mut resized_blocks,
2839 selections,
2840 selected_buffer_ids,
2841 is_row_soft_wrapped,
2842 sticky_header_excerpt_id,
2843 window,
2844 cx,
2845 );
2846 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2847 blocks.push(BlockLayout {
2848 id: block_id,
2849 row: Some(row),
2850 element,
2851 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2852 style: BlockStyle::Fixed,
2853 });
2854 }
2855
2856 for (row, block) in non_fixed_blocks {
2857 let style = block.style();
2858 let width = match style {
2859 BlockStyle::Sticky => hitbox.size.width,
2860 BlockStyle::Flex => hitbox
2861 .size
2862 .width
2863 .max(fixed_block_max_width)
2864 .max(gutter_dimensions.width + *scroll_width),
2865 BlockStyle::Fixed => unreachable!(),
2866 };
2867 let block_id = block.id();
2868
2869 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2870 focused_block = None;
2871 }
2872
2873 let (element, element_size) = self.render_block(
2874 block,
2875 width.into(),
2876 block_id,
2877 row,
2878 snapshot,
2879 text_x,
2880 &rows,
2881 line_layouts,
2882 gutter_dimensions,
2883 line_height,
2884 em_width,
2885 text_hitbox,
2886 editor_width,
2887 scroll_width,
2888 &mut resized_blocks,
2889 selections,
2890 selected_buffer_ids,
2891 is_row_soft_wrapped,
2892 sticky_header_excerpt_id,
2893 window,
2894 cx,
2895 );
2896
2897 blocks.push(BlockLayout {
2898 id: block_id,
2899 row: Some(row),
2900 element,
2901 available_space: size(width.into(), element_size.height.into()),
2902 style,
2903 });
2904 }
2905
2906 if let Some(focused_block) = focused_block {
2907 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2908 if focus_handle.is_focused(window) {
2909 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2910 let style = block.style();
2911 let width = match style {
2912 BlockStyle::Fixed => AvailableSpace::MinContent,
2913 BlockStyle::Flex => AvailableSpace::Definite(
2914 hitbox
2915 .size
2916 .width
2917 .max(fixed_block_max_width)
2918 .max(gutter_dimensions.width + *scroll_width),
2919 ),
2920 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2921 };
2922
2923 let (element, element_size) = self.render_block(
2924 &block,
2925 width,
2926 focused_block.id,
2927 rows.end,
2928 snapshot,
2929 text_x,
2930 &rows,
2931 line_layouts,
2932 gutter_dimensions,
2933 line_height,
2934 em_width,
2935 text_hitbox,
2936 editor_width,
2937 scroll_width,
2938 &mut resized_blocks,
2939 selections,
2940 selected_buffer_ids,
2941 is_row_soft_wrapped,
2942 sticky_header_excerpt_id,
2943 window,
2944 cx,
2945 );
2946
2947 blocks.push(BlockLayout {
2948 id: block.id(),
2949 row: None,
2950 element,
2951 available_space: size(width, element_size.height.into()),
2952 style,
2953 });
2954 }
2955 }
2956 }
2957 }
2958
2959 if resized_blocks.is_empty() {
2960 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2961 Ok(blocks)
2962 } else {
2963 Err(resized_blocks)
2964 }
2965 }
2966
2967 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2968 /// a restart of rendering for the editor based on the new sizes.
2969 #[allow(clippy::too_many_arguments)]
2970 fn layout_blocks(
2971 &self,
2972 blocks: &mut Vec<BlockLayout>,
2973 block_starts: &mut HashSet<DisplayRow>,
2974 hitbox: &Hitbox,
2975 line_height: Pixels,
2976 scroll_pixel_position: gpui::Point<Pixels>,
2977 window: &mut Window,
2978 cx: &mut App,
2979 ) {
2980 for block in blocks {
2981 let mut origin = if let Some(row) = block.row {
2982 block_starts.insert(row);
2983 hitbox.origin
2984 + point(
2985 Pixels::ZERO,
2986 row.as_f32() * line_height - scroll_pixel_position.y,
2987 )
2988 } else {
2989 // Position the block outside the visible area
2990 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2991 };
2992
2993 if !matches!(block.style, BlockStyle::Sticky) {
2994 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2995 }
2996
2997 let focus_handle =
2998 block
2999 .element
3000 .prepaint_as_root(origin, block.available_space, window, cx);
3001
3002 if let Some(focus_handle) = focus_handle {
3003 self.editor.update(cx, |editor, _cx| {
3004 editor.set_focused_block(FocusedBlock {
3005 id: block.id,
3006 focus_handle: focus_handle.downgrade(),
3007 });
3008 });
3009 }
3010 }
3011 }
3012
3013 #[allow(clippy::too_many_arguments)]
3014 fn layout_sticky_buffer_header(
3015 &self,
3016 StickyHeaderExcerpt {
3017 excerpt,
3018 next_excerpt_controls_present,
3019 next_buffer_row,
3020 }: StickyHeaderExcerpt<'_>,
3021 scroll_position: f32,
3022 line_height: Pixels,
3023 snapshot: &EditorSnapshot,
3024 hitbox: &Hitbox,
3025 selected_buffer_ids: &Vec<BufferId>,
3026 window: &mut Window,
3027 cx: &mut App,
3028 ) -> AnyElement {
3029 let jump_data = header_jump_data(
3030 snapshot,
3031 DisplayRow(scroll_position as u32),
3032 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3033 excerpt,
3034 );
3035
3036 let editor_bg_color = cx.theme().colors().editor_background;
3037
3038 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3039
3040 let mut header = v_flex()
3041 .relative()
3042 .child(
3043 div()
3044 .w(hitbox.bounds.size.width)
3045 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3046 .bg(linear_gradient(
3047 0.,
3048 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3049 linear_color_stop(editor_bg_color, 0.6),
3050 ))
3051 .absolute()
3052 .top_0(),
3053 )
3054 .child(
3055 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3056 .into_any_element(),
3057 )
3058 .into_any_element();
3059
3060 let mut origin = hitbox.origin;
3061
3062 if let Some(next_buffer_row) = next_buffer_row {
3063 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3064
3065 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3066
3067 if next_excerpt_controls_present {
3068 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3069 }
3070
3071 let offset = scroll_position - max_row as f32;
3072
3073 if offset > 0.0 {
3074 origin.y -= Pixels(offset) * line_height;
3075 }
3076 }
3077
3078 let size = size(
3079 AvailableSpace::Definite(hitbox.size.width),
3080 AvailableSpace::MinContent,
3081 );
3082
3083 header.prepaint_as_root(origin, size, window, cx);
3084
3085 header
3086 }
3087
3088 #[allow(clippy::too_many_arguments)]
3089 fn layout_cursor_popovers(
3090 &self,
3091 line_height: Pixels,
3092 text_hitbox: &Hitbox,
3093 content_origin: gpui::Point<Pixels>,
3094 start_row: DisplayRow,
3095 scroll_pixel_position: gpui::Point<Pixels>,
3096 line_layouts: &[LineWithInvisibles],
3097 cursor: DisplayPoint,
3098 cursor_point: Point,
3099 style: &EditorStyle,
3100 window: &mut Window,
3101 cx: &mut App,
3102 ) {
3103 let mut min_menu_height = Pixels::ZERO;
3104 let mut max_menu_height = Pixels::ZERO;
3105 let mut height_above_menu = Pixels::ZERO;
3106 let height_below_menu = Pixels::ZERO;
3107 let mut edit_prediction_popover_visible = false;
3108 let mut context_menu_visible = false;
3109
3110 {
3111 let editor = self.editor.read(cx);
3112 if editor.has_active_completions_menu() && editor.show_inline_completions_in_menu(cx) {
3113 height_above_menu +=
3114 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3115 edit_prediction_popover_visible = true;
3116 }
3117
3118 if editor.context_menu_visible() {
3119 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3120 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3121 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3122 context_menu_visible = true;
3123 }
3124 }
3125 }
3126
3127 let visible = edit_prediction_popover_visible || context_menu_visible;
3128 if !visible {
3129 return;
3130 }
3131
3132 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3133 let target_position = content_origin
3134 + gpui::Point {
3135 x: cmp::max(
3136 px(0.),
3137 cursor_row_layout.x_for_index(cursor.column() as usize)
3138 - scroll_pixel_position.x,
3139 ),
3140 y: cmp::max(
3141 px(0.),
3142 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3143 ),
3144 };
3145
3146 let viewport_bounds =
3147 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3148 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3149 ..Default::default()
3150 });
3151
3152 let min_height = height_above_menu + min_menu_height + height_below_menu;
3153 let max_height = height_above_menu + max_menu_height + height_below_menu;
3154 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3155 target_position,
3156 line_height,
3157 min_height,
3158 max_height,
3159 text_hitbox,
3160 viewport_bounds,
3161 window,
3162 cx,
3163 |height, max_width_for_stable_x, y_flipped, window, cx| {
3164 // First layout the menu to get its size - others can be at least this wide.
3165 let context_menu = if context_menu_visible {
3166 let menu_height = if y_flipped {
3167 height - height_below_menu
3168 } else {
3169 height - height_above_menu
3170 };
3171 let mut element = self
3172 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3173 .expect("Visible context menu should always render.");
3174 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3175 Some((CursorPopoverType::CodeContextMenu, element, size))
3176 } else {
3177 None
3178 };
3179 let min_width = context_menu
3180 .as_ref()
3181 .map_or(px(0.), |(_, _, size)| size.width);
3182 let max_width = max_width_for_stable_x.max(
3183 context_menu
3184 .as_ref()
3185 .map_or(px(0.), |(_, _, size)| size.width),
3186 );
3187
3188 let edit_prediction = if edit_prediction_popover_visible {
3189 let accept_keystroke: Option<Keystroke>;
3190
3191 // TODO: load modifier from keymap.
3192 // `bindings_for_action_in` returns `None` in Linux, and is intermittent on macOS
3193 #[cfg(target_os = "macos")]
3194 {
3195 // let bindings = window.bindings_for_action_in(
3196 // &crate::AcceptInlineCompletion,
3197 // &self.editor.focus_handle(cx),
3198 // );
3199
3200 // let last_binding = bindings.last();
3201
3202 // accept_keystroke = if let Some(binding) = last_binding {
3203 // match &binding.keystrokes() {
3204 // // TODO: no need to clone once this logic works on linux.
3205 // [keystroke] => Some(keystroke.clone()),
3206 // _ => None,
3207 // }
3208 // } else {
3209 // None
3210 // };
3211 accept_keystroke = Some(Keystroke {
3212 modifiers: gpui::Modifiers {
3213 alt: true,
3214 ..Default::default()
3215 },
3216 key: "tab".to_string(),
3217 key_char: None,
3218 });
3219 }
3220
3221 #[cfg(not(target_os = "macos"))]
3222 {
3223 accept_keystroke = Some(Keystroke {
3224 modifiers: gpui::Modifiers {
3225 alt: true,
3226 ..Default::default()
3227 },
3228 key: "enter".to_string(),
3229 key_char: None,
3230 });
3231 }
3232
3233 self.editor.update(cx, move |editor, cx| {
3234 let mut element = editor.render_edit_prediction_cursor_popover(
3235 min_width,
3236 max_width,
3237 cursor_point,
3238 start_row,
3239 &line_layouts,
3240 style,
3241 accept_keystroke.as_ref()?,
3242 window,
3243 cx,
3244 )?;
3245 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3246 Some((CursorPopoverType::EditPrediction, element, size))
3247 })
3248 } else {
3249 None
3250 };
3251 vec![edit_prediction, context_menu]
3252 .into_iter()
3253 .flatten()
3254 .collect::<Vec<_>>()
3255 },
3256 ) else {
3257 return;
3258 };
3259
3260 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3261 .iter()
3262 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3263 else {
3264 return;
3265 };
3266 let last_ix = laid_out_popovers.len() - 1;
3267 let menu_is_last = menu_ix == last_ix;
3268 let first_popover_bounds = laid_out_popovers[0].1;
3269 let last_popover_bounds = laid_out_popovers[last_ix].1;
3270
3271 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3272 // right, and otherwise it goes below or to the right.
3273 let mut target_bounds = Bounds::from_corners(
3274 first_popover_bounds.origin,
3275 last_popover_bounds.bottom_right(),
3276 );
3277 target_bounds.size.width = menu_bounds.size.width;
3278
3279 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3280 // based on this is preferred for layout stability.
3281 let mut max_target_bounds = target_bounds;
3282 max_target_bounds.size.height = max_height;
3283 if y_flipped {
3284 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3285 }
3286
3287 // Add spacing around `target_bounds` and `max_target_bounds`.
3288 let mut extend_amount = Edges::all(MENU_GAP);
3289 if y_flipped {
3290 extend_amount.bottom = line_height;
3291 } else {
3292 extend_amount.top = line_height;
3293 }
3294 let target_bounds = target_bounds.extend(extend_amount);
3295 let max_target_bounds = max_target_bounds.extend(extend_amount);
3296
3297 let must_place_above_or_below =
3298 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3299 laid_out_popovers[menu_ix + 1..]
3300 .iter()
3301 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3302 } else {
3303 false
3304 };
3305
3306 self.layout_context_menu_aside(
3307 y_flipped,
3308 *menu_bounds,
3309 target_bounds,
3310 max_target_bounds,
3311 max_menu_height,
3312 must_place_above_or_below,
3313 text_hitbox,
3314 viewport_bounds,
3315 window,
3316 cx,
3317 );
3318 }
3319
3320 #[allow(clippy::too_many_arguments)]
3321 fn layout_gutter_menu(
3322 &self,
3323 line_height: Pixels,
3324 text_hitbox: &Hitbox,
3325 content_origin: gpui::Point<Pixels>,
3326 scroll_pixel_position: gpui::Point<Pixels>,
3327 gutter_overshoot: Pixels,
3328 window: &mut Window,
3329 cx: &mut App,
3330 ) {
3331 let editor = self.editor.read(cx);
3332 if !editor.context_menu_visible() {
3333 return;
3334 }
3335 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3336 editor.context_menu_origin()
3337 else {
3338 return;
3339 };
3340 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3341 // indicator than just a plain first column of the text field.
3342 let target_position = content_origin
3343 + gpui::Point {
3344 x: -gutter_overshoot,
3345 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3346 };
3347 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3348 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3349 let viewport_bounds =
3350 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3351 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3352 ..Default::default()
3353 });
3354 self.layout_popovers_above_or_below_line(
3355 target_position,
3356 line_height,
3357 min_height,
3358 max_height,
3359 text_hitbox,
3360 viewport_bounds,
3361 window,
3362 cx,
3363 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3364 let mut element = self
3365 .render_context_menu(line_height, height, y_flipped, window, cx)
3366 .expect("Visible context menu should always render.");
3367 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3368 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3369 },
3370 );
3371 }
3372
3373 #[allow(clippy::too_many_arguments)]
3374 fn layout_popovers_above_or_below_line(
3375 &self,
3376 target_position: gpui::Point<Pixels>,
3377 line_height: Pixels,
3378 min_height: Pixels,
3379 max_height: Pixels,
3380 text_hitbox: &Hitbox,
3381 viewport_bounds: Bounds<Pixels>,
3382 window: &mut Window,
3383 cx: &mut App,
3384 make_sized_popovers: impl FnOnce(
3385 Pixels,
3386 Pixels,
3387 bool,
3388 &mut Window,
3389 &mut App,
3390 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3391 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3392 // If the max height won't fit below and there is more space above, put it above the line.
3393 let bottom_y_when_flipped = target_position.y - line_height;
3394 let available_above = bottom_y_when_flipped - text_hitbox.top();
3395 let available_below = text_hitbox.bottom() - target_position.y;
3396 let y_overflows_below = max_height > available_below;
3397 let mut y_flipped = y_overflows_below && available_above > available_below;
3398 let mut height = cmp::min(
3399 max_height,
3400 if y_flipped {
3401 available_above
3402 } else {
3403 available_below
3404 },
3405 );
3406
3407 // If the min height doesn't fit within text bounds, instead fit within the window.
3408 if height < min_height {
3409 let available_above = bottom_y_when_flipped;
3410 let available_below = viewport_bounds.bottom() - target_position.y;
3411 if available_below > min_height {
3412 y_flipped = false;
3413 height = min_height;
3414 } else if available_above > min_height {
3415 y_flipped = true;
3416 height = min_height;
3417 } else if available_above > available_below {
3418 y_flipped = true;
3419 height = available_above;
3420 } else {
3421 y_flipped = false;
3422 height = available_below;
3423 }
3424 }
3425
3426 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3427
3428 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3429 // for very narrow windows.
3430 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3431 if popovers.is_empty() {
3432 return None;
3433 }
3434
3435 let max_width = popovers
3436 .iter()
3437 .map(|(_, _, size)| size.width)
3438 .max()
3439 .unwrap_or_default();
3440
3441 let mut current_position = gpui::Point {
3442 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3443 // overflow. Include space for the scrollbar.
3444 x: target_position
3445 .x
3446 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3447 y: if y_flipped {
3448 bottom_y_when_flipped
3449 } else {
3450 target_position.y
3451 },
3452 };
3453
3454 let mut laid_out_popovers = popovers
3455 .into_iter()
3456 .map(|(popover_type, element, size)| {
3457 if y_flipped {
3458 current_position.y -= size.height;
3459 }
3460 let position = current_position;
3461 window.defer_draw(element, current_position, 1);
3462 if !y_flipped {
3463 current_position.y += size.height + MENU_GAP;
3464 } else {
3465 current_position.y -= MENU_GAP;
3466 }
3467 (popover_type, Bounds::new(position, size))
3468 })
3469 .collect::<Vec<_>>();
3470
3471 if y_flipped {
3472 laid_out_popovers.reverse();
3473 }
3474
3475 Some((laid_out_popovers, y_flipped))
3476 }
3477
3478 #[allow(clippy::too_many_arguments)]
3479 fn layout_context_menu_aside(
3480 &self,
3481 y_flipped: bool,
3482 menu_bounds: Bounds<Pixels>,
3483 target_bounds: Bounds<Pixels>,
3484 max_target_bounds: Bounds<Pixels>,
3485 max_height: Pixels,
3486 must_place_above_or_below: bool,
3487 text_hitbox: &Hitbox,
3488 viewport_bounds: Bounds<Pixels>,
3489 window: &mut Window,
3490 cx: &mut App,
3491 ) {
3492 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3493 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3494 && !must_place_above_or_below
3495 {
3496 let max_width = cmp::min(
3497 available_within_viewport.right - px(1.),
3498 MENU_ASIDE_MAX_WIDTH,
3499 );
3500 let Some(mut aside) =
3501 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3502 else {
3503 return;
3504 };
3505 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3506 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3507 Some((aside, right_position))
3508 } else {
3509 let max_size = size(
3510 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3511 // won't be needed here.
3512 cmp::min(
3513 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3514 viewport_bounds.right(),
3515 ),
3516 cmp::min(
3517 max_height,
3518 cmp::max(
3519 available_within_viewport.top,
3520 available_within_viewport.bottom,
3521 ),
3522 ) - POPOVER_Y_PADDING,
3523 );
3524 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3525 return;
3526 };
3527 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3528
3529 let top_position = point(
3530 menu_bounds.origin.x,
3531 target_bounds.top() - actual_size.height,
3532 );
3533 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3534
3535 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3536 // Prefer to fit on the same side of the line as the menu, then on the other side of
3537 // the line.
3538 if !y_flipped && wanted.height < available.bottom {
3539 Some(bottom_position)
3540 } else if !y_flipped && wanted.height < available.top {
3541 Some(top_position)
3542 } else if y_flipped && wanted.height < available.top {
3543 Some(top_position)
3544 } else if y_flipped && wanted.height < available.bottom {
3545 Some(bottom_position)
3546 } else {
3547 None
3548 }
3549 };
3550
3551 // Prefer choosing a direction using max sizes rather than actual size for stability.
3552 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3553 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3554 let aside_position = fit_within(available_within_text, wanted)
3555 // Fallback: fit max size in window.
3556 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3557 // Fallback: fit actual size in window.
3558 .or_else(|| fit_within(available_within_viewport, actual_size));
3559
3560 aside_position.map(|position| (aside, position))
3561 };
3562
3563 // Skip drawing if it doesn't fit anywhere.
3564 if let Some((aside, position)) = positioned_aside {
3565 window.defer_draw(aside, position, 1);
3566 }
3567 }
3568
3569 fn render_context_menu(
3570 &self,
3571 line_height: Pixels,
3572 height: Pixels,
3573 y_flipped: bool,
3574 window: &mut Window,
3575 cx: &mut App,
3576 ) -> Option<AnyElement> {
3577 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3578 self.editor.update(cx, |editor, cx| {
3579 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3580 })
3581 }
3582
3583 fn render_context_menu_aside(
3584 &self,
3585 max_size: Size<Pixels>,
3586
3587 cx: &mut App,
3588 ) -> Option<AnyElement> {
3589 if max_size.width < px(100.) || max_size.height < px(12.) {
3590 None
3591 } else {
3592 self.editor.update(cx, |editor, cx| {
3593 editor.render_context_menu_aside(&self.style, max_size, cx)
3594 })
3595 }
3596 }
3597
3598 #[allow(clippy::too_many_arguments)]
3599 fn layout_inline_completion_popover(
3600 &self,
3601 text_bounds: &Bounds<Pixels>,
3602 editor_snapshot: &EditorSnapshot,
3603 visible_row_range: Range<DisplayRow>,
3604 scroll_top: f32,
3605 scroll_bottom: f32,
3606 line_layouts: &[LineWithInvisibles],
3607 line_height: Pixels,
3608 scroll_pixel_position: gpui::Point<Pixels>,
3609 newest_selection_head: Option<DisplayPoint>,
3610 editor_width: Pixels,
3611 style: &EditorStyle,
3612 window: &mut Window,
3613 cx: &mut App,
3614 ) -> Option<AnyElement> {
3615 const PADDING_X: Pixels = Pixels(24.);
3616 const PADDING_Y: Pixels = Pixels(2.);
3617
3618 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3619
3620 match &active_inline_completion.completion {
3621 InlineCompletion::Move { target, .. } => {
3622 let previewing = false;
3623 let target_display_point = target.to_display_point(editor_snapshot);
3624 if target_display_point.row().as_f32() < scroll_top {
3625 let mut element = inline_completion_accept_indicator(
3626 "Jump to Edit",
3627 Some(IconName::ArrowUp),
3628 previewing,
3629 self.editor.focus_handle(cx),
3630 window,
3631 cx,
3632 );
3633 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3634 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3635 element.prepaint_at(text_bounds.origin + offset, window, cx);
3636 Some(element)
3637 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3638 let mut element = inline_completion_accept_indicator(
3639 "Jump to Edit",
3640 Some(IconName::ArrowDown),
3641 previewing,
3642 self.editor.focus_handle(cx),
3643 window,
3644 cx,
3645 );
3646 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3647 let offset = point(
3648 (text_bounds.size.width - size.width) / 2.,
3649 text_bounds.size.height - size.height - PADDING_Y,
3650 );
3651 element.prepaint_at(text_bounds.origin + offset, window, cx);
3652 Some(element)
3653 } else {
3654 let mut element = inline_completion_accept_indicator(
3655 "Jump to Edit",
3656 None,
3657 previewing,
3658 self.editor.focus_handle(cx),
3659 window,
3660 cx,
3661 );
3662
3663 let target_line_end = DisplayPoint::new(
3664 target_display_point.row(),
3665 editor_snapshot.line_len(target_display_point.row()),
3666 );
3667 let origin = self.editor.update(cx, |editor, _cx| {
3668 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3669 })?;
3670 element.prepaint_as_root(
3671 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3672 AvailableSpace::min_size(),
3673 window,
3674 cx,
3675 );
3676 Some(element)
3677 }
3678 }
3679 InlineCompletion::Edit {
3680 edits,
3681 edit_preview,
3682 display_mode,
3683 snapshot,
3684 } => {
3685 if self.editor.read(cx).has_active_completions_menu() {
3686 return None;
3687 }
3688
3689 let edit_start = edits
3690 .first()
3691 .unwrap()
3692 .0
3693 .start
3694 .to_display_point(editor_snapshot);
3695 let edit_end = edits
3696 .last()
3697 .unwrap()
3698 .0
3699 .end
3700 .to_display_point(editor_snapshot);
3701
3702 let is_visible = visible_row_range.contains(&edit_start.row())
3703 || visible_row_range.contains(&edit_end.row());
3704 if !is_visible {
3705 return None;
3706 }
3707
3708 match display_mode {
3709 EditDisplayMode::TabAccept(previewing) => {
3710 let previewing = *previewing;
3711 let range = &edits.first()?.0;
3712 let target_display_point = range.end.to_display_point(editor_snapshot);
3713
3714 let target_line_end = DisplayPoint::new(
3715 target_display_point.row(),
3716 editor_snapshot.line_len(target_display_point.row()),
3717 );
3718 let origin = self.editor.update(cx, |editor, _cx| {
3719 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3720 })?;
3721
3722 let mut element = inline_completion_accept_indicator(
3723 "Accept",
3724 None,
3725 previewing,
3726 self.editor.focus_handle(cx),
3727 window,
3728 cx,
3729 );
3730
3731 element.prepaint_as_root(
3732 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3733 AvailableSpace::min_size(),
3734 window,
3735 cx,
3736 );
3737
3738 return Some(element);
3739 }
3740 EditDisplayMode::Inline => return None,
3741 EditDisplayMode::DiffPopover => {}
3742 }
3743
3744 let highlighted_edits = crate::inline_completion_edit_text(
3745 &snapshot,
3746 edits,
3747 edit_preview.as_ref()?,
3748 false,
3749 cx,
3750 );
3751
3752 let line_count = highlighted_edits.text.lines().count();
3753
3754 let longest_row =
3755 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3756 let longest_line_width = if visible_row_range.contains(&longest_row) {
3757 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3758 } else {
3759 layout_line(
3760 longest_row,
3761 editor_snapshot,
3762 style,
3763 editor_width,
3764 |_| false,
3765 window,
3766 cx,
3767 )
3768 .width
3769 };
3770
3771 let styled_text = highlighted_edits.to_styled_text(&style.text);
3772
3773 let mut element = div()
3774 .bg(cx.theme().colors().editor_background)
3775 .border_1()
3776 .border_color(cx.theme().colors().border)
3777 .rounded_md()
3778 .child(styled_text)
3779 .into_any();
3780
3781 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3782 .extend(Edges {
3783 right: -Self::SCROLLBAR_WIDTH,
3784 ..Default::default()
3785 });
3786
3787 let x_after_longest =
3788 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3789
3790 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3791
3792 // Fully visible if it can be displayed within the window (allow overlapping other
3793 // panes). However, this is only allowed if the popover starts within text_bounds.
3794 let is_fully_visible = x_after_longest < text_bounds.right()
3795 && x_after_longest + element_bounds.width < viewport_bounds.right();
3796
3797 let origin = if is_fully_visible {
3798 point(
3799 x_after_longest,
3800 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3801 - scroll_pixel_position.y,
3802 )
3803 } else {
3804 // Avoid overlapping both the edited rows and the user's cursor.
3805 let target_above = DisplayRow(
3806 edit_start
3807 .row()
3808 .0
3809 .min(
3810 newest_selection_head
3811 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3812 )
3813 .saturating_sub(line_count as u32),
3814 );
3815 let mut row_target;
3816 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3817 row_target = target_above;
3818 } else {
3819 row_target = DisplayRow(
3820 edit_end.row().0.max(
3821 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3822 ) + 1,
3823 );
3824 if !visible_row_range.contains(&row_target) {
3825 // Not visible, so fallback on displaying immediately below the cursor.
3826 if let Some(cursor) = newest_selection_head {
3827 row_target = DisplayRow(cursor.row().0 + 1);
3828 } else {
3829 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3830 row_target = DisplayRow(0);
3831 }
3832 }
3833 };
3834
3835 text_bounds.origin
3836 + point(
3837 -scroll_pixel_position.x,
3838 row_target.as_f32() * line_height - scroll_pixel_position.y,
3839 )
3840 };
3841
3842 window.defer_draw(element, origin, 1);
3843
3844 // Do not return an element, since it will already be drawn due to defer_draw.
3845 None
3846 }
3847 }
3848 }
3849
3850 fn layout_mouse_context_menu(
3851 &self,
3852 editor_snapshot: &EditorSnapshot,
3853 visible_range: Range<DisplayRow>,
3854 content_origin: gpui::Point<Pixels>,
3855 window: &mut Window,
3856 cx: &mut App,
3857 ) -> Option<AnyElement> {
3858 let position = self.editor.update(cx, |editor, _cx| {
3859 let visible_start_point = editor.display_to_pixel_point(
3860 DisplayPoint::new(visible_range.start, 0),
3861 editor_snapshot,
3862 window,
3863 )?;
3864 let visible_end_point = editor.display_to_pixel_point(
3865 DisplayPoint::new(visible_range.end, 0),
3866 editor_snapshot,
3867 window,
3868 )?;
3869
3870 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3871 let (source_display_point, position) = match mouse_context_menu.position {
3872 MenuPosition::PinnedToScreen(point) => (None, point),
3873 MenuPosition::PinnedToEditor { source, offset } => {
3874 let source_display_point = source.to_display_point(editor_snapshot);
3875 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3876 let position = content_origin + source_point + offset;
3877 (Some(source_display_point), position)
3878 }
3879 };
3880
3881 let source_included = source_display_point.map_or(true, |source_display_point| {
3882 visible_range
3883 .to_inclusive()
3884 .contains(&source_display_point.row())
3885 });
3886 let position_included =
3887 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3888 if !source_included && !position_included {
3889 None
3890 } else {
3891 Some(position)
3892 }
3893 })?;
3894
3895 let mut element = self.editor.update(cx, |editor, _| {
3896 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3897 let context_menu = mouse_context_menu.context_menu.clone();
3898
3899 Some(
3900 deferred(
3901 anchored()
3902 .position(position)
3903 .child(context_menu)
3904 .anchor(Corner::TopLeft)
3905 .snap_to_window_with_margin(px(8.)),
3906 )
3907 .with_priority(1)
3908 .into_any(),
3909 )
3910 })?;
3911
3912 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3913 Some(element)
3914 }
3915
3916 #[allow(clippy::too_many_arguments)]
3917 fn layout_hover_popovers(
3918 &self,
3919 snapshot: &EditorSnapshot,
3920 hitbox: &Hitbox,
3921 text_hitbox: &Hitbox,
3922 visible_display_row_range: Range<DisplayRow>,
3923 content_origin: gpui::Point<Pixels>,
3924 scroll_pixel_position: gpui::Point<Pixels>,
3925 line_layouts: &[LineWithInvisibles],
3926 line_height: Pixels,
3927 em_width: Pixels,
3928 window: &mut Window,
3929 cx: &mut App,
3930 ) {
3931 struct MeasuredHoverPopover {
3932 element: AnyElement,
3933 size: Size<Pixels>,
3934 horizontal_offset: Pixels,
3935 }
3936
3937 let max_size = size(
3938 (120. * em_width) // Default size
3939 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3940 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3941 (16. * line_height) // Default size
3942 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3943 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3944 );
3945
3946 let hover_popovers = self.editor.update(cx, |editor, cx| {
3947 editor
3948 .hover_state
3949 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3950 });
3951 let Some((position, hover_popovers)) = hover_popovers else {
3952 return;
3953 };
3954
3955 // This is safe because we check on layout whether the required row is available
3956 let hovered_row_layout =
3957 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3958
3959 // Compute Hovered Point
3960 let x =
3961 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3962 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3963 let hovered_point = content_origin + point(x, y);
3964
3965 let mut overall_height = Pixels::ZERO;
3966 let mut measured_hover_popovers = Vec::new();
3967 for mut hover_popover in hover_popovers {
3968 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3969 let horizontal_offset =
3970 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3971
3972 overall_height += HOVER_POPOVER_GAP + size.height;
3973
3974 measured_hover_popovers.push(MeasuredHoverPopover {
3975 element: hover_popover,
3976 size,
3977 horizontal_offset,
3978 });
3979 }
3980 overall_height += HOVER_POPOVER_GAP;
3981
3982 fn draw_occluder(
3983 width: Pixels,
3984 origin: gpui::Point<Pixels>,
3985 window: &mut Window,
3986 cx: &mut App,
3987 ) {
3988 let mut occlusion = div()
3989 .size_full()
3990 .occlude()
3991 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3992 .into_any_element();
3993 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3994 window.defer_draw(occlusion, origin, 2);
3995 }
3996
3997 if hovered_point.y > overall_height {
3998 // There is enough space above. Render popovers above the hovered point
3999 let mut current_y = hovered_point.y;
4000 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4001 let size = popover.size;
4002 let popover_origin = point(
4003 hovered_point.x + popover.horizontal_offset,
4004 current_y - size.height,
4005 );
4006
4007 window.defer_draw(popover.element, popover_origin, 2);
4008 if position != itertools::Position::Last {
4009 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4010 draw_occluder(size.width, origin, window, cx);
4011 }
4012
4013 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4014 }
4015 } else {
4016 // There is not enough space above. Render popovers below the hovered point
4017 let mut current_y = hovered_point.y + line_height;
4018 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4019 let size = popover.size;
4020 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4021
4022 window.defer_draw(popover.element, popover_origin, 2);
4023 if position != itertools::Position::Last {
4024 let origin = point(popover_origin.x, popover_origin.y + size.height);
4025 draw_occluder(size.width, origin, window, cx);
4026 }
4027
4028 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4029 }
4030 }
4031 }
4032
4033 #[allow(clippy::too_many_arguments)]
4034 fn layout_diff_hunk_controls(
4035 &self,
4036 row_range: Range<DisplayRow>,
4037 row_infos: &[RowInfo],
4038 text_hitbox: &Hitbox,
4039 position_map: &PositionMap,
4040 newest_cursor_position: Option<DisplayPoint>,
4041 line_height: Pixels,
4042 scroll_pixel_position: gpui::Point<Pixels>,
4043 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4044 editor: Entity<Editor>,
4045 window: &mut Window,
4046 cx: &mut App,
4047 ) -> Vec<AnyElement> {
4048 let point_for_position = position_map.point_for_position(window.mouse_position());
4049
4050 let mut controls = vec![];
4051
4052 let active_positions = [
4053 Some(point_for_position.previous_valid),
4054 newest_cursor_position,
4055 ];
4056
4057 for (hunk, _) in display_hunks {
4058 if let DisplayDiffHunk::Unfolded {
4059 display_row_range,
4060 multi_buffer_range,
4061 status,
4062 ..
4063 } = &hunk
4064 {
4065 if display_row_range.start < row_range.start
4066 || display_row_range.start >= row_range.end
4067 {
4068 continue;
4069 }
4070 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4071 if row_infos[row_ix].diff_status.is_none() {
4072 continue;
4073 }
4074 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4075 && *status != DiffHunkStatus::Added
4076 {
4077 continue;
4078 }
4079 if active_positions
4080 .iter()
4081 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4082 {
4083 let y = display_row_range.start.as_f32() * line_height
4084 + text_hitbox.bounds.top()
4085 - scroll_pixel_position.y;
4086 let x = text_hitbox.bounds.right() - px(100.);
4087
4088 let mut element = diff_hunk_controls(
4089 display_row_range.start.0,
4090 multi_buffer_range.clone(),
4091 line_height,
4092 &editor,
4093 cx,
4094 );
4095 element.prepaint_as_root(
4096 gpui::Point::new(x, y),
4097 size(px(100.0), line_height).into(),
4098 window,
4099 cx,
4100 );
4101 controls.push(element);
4102 }
4103 }
4104 }
4105
4106 controls
4107 }
4108
4109 #[allow(clippy::too_many_arguments)]
4110 fn layout_signature_help(
4111 &self,
4112 hitbox: &Hitbox,
4113 content_origin: gpui::Point<Pixels>,
4114 scroll_pixel_position: gpui::Point<Pixels>,
4115 newest_selection_head: Option<DisplayPoint>,
4116 start_row: DisplayRow,
4117 line_layouts: &[LineWithInvisibles],
4118 line_height: Pixels,
4119 em_width: Pixels,
4120 window: &mut Window,
4121 cx: &mut App,
4122 ) {
4123 if !self.editor.focus_handle(cx).is_focused(window) {
4124 return;
4125 }
4126 let Some(newest_selection_head) = newest_selection_head else {
4127 return;
4128 };
4129 let selection_row = newest_selection_head.row();
4130 if selection_row < start_row {
4131 return;
4132 }
4133 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4134 else {
4135 return;
4136 };
4137
4138 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4139 - scroll_pixel_position.x
4140 + content_origin.x;
4141 let start_y =
4142 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4143
4144 let max_size = size(
4145 (120. * em_width) // Default size
4146 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4147 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4148 (16. * line_height) // Default size
4149 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4150 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4151 );
4152
4153 let maybe_element = self.editor.update(cx, |editor, cx| {
4154 if let Some(popover) = editor.signature_help_state.popover_mut() {
4155 let element = popover.render(
4156 &self.style,
4157 max_size,
4158 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4159 cx,
4160 );
4161 Some(element)
4162 } else {
4163 None
4164 }
4165 });
4166 if let Some(mut element) = maybe_element {
4167 let window_size = window.viewport_size();
4168 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4169 let mut point = point(start_x, start_y - size.height);
4170
4171 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4172 if point.x + size.width >= window_size.width {
4173 point.x = window_size.width - size.width;
4174 }
4175
4176 window.defer_draw(element, point, 1)
4177 }
4178 }
4179
4180 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4181 window.paint_layer(layout.hitbox.bounds, |window| {
4182 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4183 let gutter_bg = cx.theme().colors().editor_gutter_background;
4184 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4185 window.paint_quad(fill(
4186 layout.position_map.text_hitbox.bounds,
4187 self.style.background,
4188 ));
4189
4190 if let EditorMode::Full = layout.mode {
4191 let mut active_rows = layout.active_rows.iter().peekable();
4192 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4193 let mut end_row = start_row.0;
4194 while active_rows
4195 .peek()
4196 .map_or(false, |(active_row, has_selection)| {
4197 active_row.0 == end_row + 1
4198 && *has_selection == contains_non_empty_selection
4199 })
4200 {
4201 active_rows.next().unwrap();
4202 end_row += 1;
4203 }
4204
4205 if !contains_non_empty_selection {
4206 let highlight_h_range =
4207 match layout.position_map.snapshot.current_line_highlight {
4208 CurrentLineHighlight::Gutter => Some(Range {
4209 start: layout.hitbox.left(),
4210 end: layout.gutter_hitbox.right(),
4211 }),
4212 CurrentLineHighlight::Line => Some(Range {
4213 start: layout.position_map.text_hitbox.bounds.left(),
4214 end: layout.position_map.text_hitbox.bounds.right(),
4215 }),
4216 CurrentLineHighlight::All => Some(Range {
4217 start: layout.hitbox.left(),
4218 end: layout.hitbox.right(),
4219 }),
4220 CurrentLineHighlight::None => None,
4221 };
4222 if let Some(range) = highlight_h_range {
4223 let active_line_bg = cx.theme().colors().editor_active_line_background;
4224 let bounds = Bounds {
4225 origin: point(
4226 range.start,
4227 layout.hitbox.origin.y
4228 + (start_row.as_f32() - scroll_top)
4229 * layout.position_map.line_height,
4230 ),
4231 size: size(
4232 range.end - range.start,
4233 layout.position_map.line_height
4234 * (end_row - start_row.0 + 1) as f32,
4235 ),
4236 };
4237 window.paint_quad(fill(bounds, active_line_bg));
4238 }
4239 }
4240 }
4241
4242 let mut paint_highlight =
4243 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4244 let origin = point(
4245 layout.hitbox.origin.x,
4246 layout.hitbox.origin.y
4247 + (highlight_row_start.as_f32() - scroll_top)
4248 * layout.position_map.line_height,
4249 );
4250 let size = size(
4251 layout.hitbox.size.width,
4252 layout.position_map.line_height
4253 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4254 );
4255 window.paint_quad(fill(Bounds { origin, size }, color));
4256 };
4257
4258 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4259 for (&new_row, &new_color) in &layout.highlighted_rows {
4260 match &mut current_paint {
4261 Some((current_color, current_range)) => {
4262 let current_color = *current_color;
4263 let new_range_started = current_color != new_color
4264 || current_range.end.next_row() != new_row;
4265 if new_range_started {
4266 paint_highlight(
4267 current_range.start,
4268 current_range.end,
4269 current_color,
4270 );
4271 current_paint = Some((new_color, new_row..new_row));
4272 continue;
4273 } else {
4274 current_range.end = current_range.end.next_row();
4275 }
4276 }
4277 None => current_paint = Some((new_color, new_row..new_row)),
4278 };
4279 }
4280 if let Some((color, range)) = current_paint {
4281 paint_highlight(range.start, range.end, color);
4282 }
4283
4284 let scroll_left =
4285 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4286
4287 for (wrap_position, active) in layout.wrap_guides.iter() {
4288 let x = (layout.position_map.text_hitbox.origin.x
4289 + *wrap_position
4290 + layout.position_map.em_width / 2.)
4291 - scroll_left;
4292
4293 let show_scrollbars = {
4294 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4295
4296 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4297 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4298 };
4299
4300 if x < layout.position_map.text_hitbox.origin.x
4301 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4302 {
4303 continue;
4304 }
4305
4306 let color = if *active {
4307 cx.theme().colors().editor_active_wrap_guide
4308 } else {
4309 cx.theme().colors().editor_wrap_guide
4310 };
4311 window.paint_quad(fill(
4312 Bounds {
4313 origin: point(x, layout.position_map.text_hitbox.origin.y),
4314 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4315 },
4316 color,
4317 ));
4318 }
4319 }
4320 })
4321 }
4322
4323 fn paint_indent_guides(
4324 &mut self,
4325 layout: &mut EditorLayout,
4326 window: &mut Window,
4327 cx: &mut App,
4328 ) {
4329 let Some(indent_guides) = &layout.indent_guides else {
4330 return;
4331 };
4332
4333 let faded_color = |color: Hsla, alpha: f32| {
4334 let mut faded = color;
4335 faded.a = alpha;
4336 faded
4337 };
4338
4339 for indent_guide in indent_guides {
4340 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4341 let settings = indent_guide.settings;
4342
4343 // TODO fixed for now, expose them through themes later
4344 const INDENT_AWARE_ALPHA: f32 = 0.2;
4345 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4346 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4347 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4348
4349 let line_color = match (settings.coloring, indent_guide.active) {
4350 (IndentGuideColoring::Disabled, _) => None,
4351 (IndentGuideColoring::Fixed, false) => {
4352 Some(cx.theme().colors().editor_indent_guide)
4353 }
4354 (IndentGuideColoring::Fixed, true) => {
4355 Some(cx.theme().colors().editor_indent_guide_active)
4356 }
4357 (IndentGuideColoring::IndentAware, false) => {
4358 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4359 }
4360 (IndentGuideColoring::IndentAware, true) => {
4361 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4362 }
4363 };
4364
4365 let background_color = match (settings.background_coloring, indent_guide.active) {
4366 (IndentGuideBackgroundColoring::Disabled, _) => None,
4367 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4368 indent_accent_colors,
4369 INDENT_AWARE_BACKGROUND_ALPHA,
4370 )),
4371 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4372 indent_accent_colors,
4373 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4374 )),
4375 };
4376
4377 let requested_line_width = if indent_guide.active {
4378 settings.active_line_width
4379 } else {
4380 settings.line_width
4381 }
4382 .clamp(1, 10);
4383 let mut line_indicator_width = 0.;
4384 if let Some(color) = line_color {
4385 window.paint_quad(fill(
4386 Bounds {
4387 origin: indent_guide.origin,
4388 size: size(px(requested_line_width as f32), indent_guide.length),
4389 },
4390 color,
4391 ));
4392 line_indicator_width = requested_line_width as f32;
4393 }
4394
4395 if let Some(color) = background_color {
4396 let width = indent_guide.single_indent_width - px(line_indicator_width);
4397 window.paint_quad(fill(
4398 Bounds {
4399 origin: point(
4400 indent_guide.origin.x + px(line_indicator_width),
4401 indent_guide.origin.y,
4402 ),
4403 size: size(width, indent_guide.length),
4404 },
4405 color,
4406 ));
4407 }
4408 }
4409 }
4410
4411 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4412 let is_singleton = self.editor.read(cx).is_singleton(cx);
4413
4414 let line_height = layout.position_map.line_height;
4415 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4416
4417 for LineNumberLayout {
4418 shaped_line,
4419 hitbox,
4420 display_row,
4421 } in layout.line_numbers.values()
4422 {
4423 let Some(hitbox) = hitbox else {
4424 continue;
4425 };
4426
4427 let is_active = layout.active_rows.contains_key(&display_row);
4428
4429 let color = if is_active {
4430 cx.theme().colors().editor_active_line_number
4431 } else if !is_singleton && hitbox.is_hovered(window) {
4432 cx.theme().colors().editor_hover_line_number
4433 } else {
4434 cx.theme().colors().editor_line_number
4435 };
4436
4437 let Some(line) = self
4438 .shape_line_number(shaped_line.text.clone(), color, window)
4439 .log_err()
4440 else {
4441 continue;
4442 };
4443 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4444 continue;
4445 };
4446 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4447 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4448 if is_singleton {
4449 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4450 } else {
4451 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4452 }
4453 }
4454 }
4455
4456 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4457 if layout.display_hunks.is_empty() {
4458 return;
4459 }
4460
4461 let line_height = layout.position_map.line_height;
4462 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4463 for (hunk, hitbox) in &layout.display_hunks {
4464 let hunk_to_paint = match hunk {
4465 DisplayDiffHunk::Folded { .. } => {
4466 let hunk_bounds = Self::diff_hunk_bounds(
4467 &layout.position_map.snapshot,
4468 line_height,
4469 layout.gutter_hitbox.bounds,
4470 hunk,
4471 );
4472 Some((
4473 hunk_bounds,
4474 cx.theme().status().modified,
4475 Corners::all(px(0.)),
4476 ))
4477 }
4478 DisplayDiffHunk::Unfolded {
4479 status,
4480 display_row_range,
4481 ..
4482 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4483 DiffHunkStatus::Added => (
4484 hunk_hitbox.bounds,
4485 cx.theme().status().created,
4486 Corners::all(px(0.)),
4487 ),
4488 DiffHunkStatus::Modified => (
4489 hunk_hitbox.bounds,
4490 cx.theme().status().modified,
4491 Corners::all(px(0.)),
4492 ),
4493 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4494 hunk_hitbox.bounds,
4495 cx.theme().status().deleted,
4496 Corners::all(px(0.)),
4497 ),
4498 DiffHunkStatus::Removed => (
4499 Bounds::new(
4500 point(
4501 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4502 hunk_hitbox.origin.y,
4503 ),
4504 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4505 ),
4506 cx.theme().status().deleted,
4507 Corners::all(1. * line_height),
4508 ),
4509 }),
4510 };
4511
4512 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4513 window.paint_quad(quad(
4514 hunk_bounds,
4515 corner_radii,
4516 background_color,
4517 Edges::default(),
4518 transparent_black(),
4519 ));
4520 }
4521 }
4522 });
4523 }
4524
4525 fn diff_hunk_bounds(
4526 snapshot: &EditorSnapshot,
4527 line_height: Pixels,
4528 gutter_bounds: Bounds<Pixels>,
4529 hunk: &DisplayDiffHunk,
4530 ) -> Bounds<Pixels> {
4531 let scroll_position = snapshot.scroll_position();
4532 let scroll_top = scroll_position.y * line_height;
4533 let gutter_strip_width = (0.275 * line_height).floor();
4534
4535 match hunk {
4536 DisplayDiffHunk::Folded { display_row, .. } => {
4537 let start_y = display_row.as_f32() * line_height - scroll_top;
4538 let end_y = start_y + line_height;
4539 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4540 let highlight_size = size(gutter_strip_width, end_y - start_y);
4541 Bounds::new(highlight_origin, highlight_size)
4542 }
4543 DisplayDiffHunk::Unfolded {
4544 display_row_range,
4545 status,
4546 ..
4547 } => {
4548 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4549 let row = display_row_range.start;
4550
4551 let offset = line_height / 2.;
4552 let start_y = row.as_f32() * line_height - offset - scroll_top;
4553 let end_y = start_y + line_height;
4554
4555 let width = (0.35 * line_height).floor();
4556 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4557 let highlight_size = size(width, end_y - start_y);
4558 Bounds::new(highlight_origin, highlight_size)
4559 } else {
4560 let start_row = display_row_range.start;
4561 let end_row = display_row_range.end;
4562 // If we're in a multibuffer, row range span might include an
4563 // excerpt header, so if we were to draw the marker straight away,
4564 // the hunk might include the rows of that header.
4565 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4566 // Instead, we simply check whether the range we're dealing with includes
4567 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4568 let end_row_in_current_excerpt = snapshot
4569 .blocks_in_range(start_row..end_row)
4570 .find_map(|(start_row, block)| {
4571 if matches!(block, Block::ExcerptBoundary { .. }) {
4572 Some(start_row)
4573 } else {
4574 None
4575 }
4576 })
4577 .unwrap_or(end_row);
4578
4579 let start_y = start_row.as_f32() * line_height - scroll_top;
4580 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4581
4582 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4583 let highlight_size = size(gutter_strip_width, end_y - start_y);
4584 Bounds::new(highlight_origin, highlight_size)
4585 }
4586 }
4587 }
4588 }
4589
4590 fn paint_gutter_indicators(
4591 &self,
4592 layout: &mut EditorLayout,
4593 window: &mut Window,
4594 cx: &mut App,
4595 ) {
4596 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4597 window.with_element_namespace("crease_toggles", |window| {
4598 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4599 crease_toggle.paint(window, cx);
4600 }
4601 });
4602
4603 for test_indicator in layout.test_indicators.iter_mut() {
4604 test_indicator.paint(window, cx);
4605 }
4606
4607 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4608 indicator.paint(window, cx);
4609 }
4610 });
4611 }
4612
4613 fn paint_gutter_highlights(
4614 &self,
4615 layout: &mut EditorLayout,
4616 window: &mut Window,
4617 cx: &mut App,
4618 ) {
4619 for (_, hunk_hitbox) in &layout.display_hunks {
4620 if let Some(hunk_hitbox) = hunk_hitbox {
4621 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4622 }
4623 }
4624
4625 let show_git_gutter = layout
4626 .position_map
4627 .snapshot
4628 .show_git_diff_gutter
4629 .unwrap_or_else(|| {
4630 matches!(
4631 ProjectSettings::get_global(cx).git.git_gutter,
4632 Some(GitGutterSetting::TrackedFiles)
4633 )
4634 });
4635 if show_git_gutter {
4636 Self::paint_diff_hunks(layout, window, cx)
4637 }
4638
4639 let highlight_width = 0.275 * layout.position_map.line_height;
4640 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4641 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4642 for (range, color) in &layout.highlighted_gutter_ranges {
4643 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4644 layout.visible_display_row_range.start - DisplayRow(1)
4645 } else {
4646 range.start.row()
4647 };
4648 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4649 layout.visible_display_row_range.end + DisplayRow(1)
4650 } else {
4651 range.end.row()
4652 };
4653
4654 let start_y = layout.gutter_hitbox.top()
4655 + start_row.0 as f32 * layout.position_map.line_height
4656 - layout.position_map.scroll_pixel_position.y;
4657 let end_y = layout.gutter_hitbox.top()
4658 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4659 - layout.position_map.scroll_pixel_position.y;
4660 let bounds = Bounds::from_corners(
4661 point(layout.gutter_hitbox.left(), start_y),
4662 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4663 );
4664 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4665 }
4666 });
4667 }
4668
4669 fn paint_blamed_display_rows(
4670 &self,
4671 layout: &mut EditorLayout,
4672 window: &mut Window,
4673 cx: &mut App,
4674 ) {
4675 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4676 return;
4677 };
4678
4679 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4680 for mut blame_element in blamed_display_rows.into_iter() {
4681 blame_element.paint(window, cx);
4682 }
4683 })
4684 }
4685
4686 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4687 window.with_content_mask(
4688 Some(ContentMask {
4689 bounds: layout.position_map.text_hitbox.bounds,
4690 }),
4691 |window| {
4692 let cursor_style = if self
4693 .editor
4694 .read(cx)
4695 .hovered_link_state
4696 .as_ref()
4697 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4698 {
4699 CursorStyle::PointingHand
4700 } else {
4701 CursorStyle::IBeam
4702 };
4703 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4704
4705 let invisible_display_ranges = self.paint_highlights(layout, window);
4706 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4707 self.paint_redactions(layout, window);
4708 self.paint_cursors(layout, window, cx);
4709 self.paint_inline_blame(layout, window, cx);
4710 self.paint_diff_hunk_controls(layout, window, cx);
4711 window.with_element_namespace("crease_trailers", |window| {
4712 for trailer in layout.crease_trailers.iter_mut().flatten() {
4713 trailer.element.paint(window, cx);
4714 }
4715 });
4716 },
4717 )
4718 }
4719
4720 fn paint_highlights(
4721 &mut self,
4722 layout: &mut EditorLayout,
4723 window: &mut Window,
4724 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4725 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4726 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4727 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4728 for (range, color) in &layout.highlighted_ranges {
4729 self.paint_highlighted_range(
4730 range.clone(),
4731 *color,
4732 Pixels::ZERO,
4733 line_end_overshoot,
4734 layout,
4735 window,
4736 );
4737 }
4738
4739 let corner_radius = 0.15 * layout.position_map.line_height;
4740
4741 for (player_color, selections) in &layout.selections {
4742 for selection in selections.iter() {
4743 self.paint_highlighted_range(
4744 selection.range.clone(),
4745 player_color.selection,
4746 corner_radius,
4747 corner_radius * 2.,
4748 layout,
4749 window,
4750 );
4751
4752 if selection.is_local && !selection.range.is_empty() {
4753 invisible_display_ranges.push(selection.range.clone());
4754 }
4755 }
4756 }
4757 invisible_display_ranges
4758 })
4759 }
4760
4761 fn paint_lines(
4762 &mut self,
4763 invisible_display_ranges: &[Range<DisplayPoint>],
4764 layout: &mut EditorLayout,
4765 window: &mut Window,
4766 cx: &mut App,
4767 ) {
4768 let whitespace_setting = self
4769 .editor
4770 .read(cx)
4771 .buffer
4772 .read(cx)
4773 .settings_at(0, cx)
4774 .show_whitespaces;
4775
4776 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4777 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4778 line_with_invisibles.draw(
4779 layout,
4780 row,
4781 layout.content_origin,
4782 whitespace_setting,
4783 invisible_display_ranges,
4784 window,
4785 cx,
4786 )
4787 }
4788
4789 for line_element in &mut layout.line_elements {
4790 line_element.paint(window, cx);
4791 }
4792 }
4793
4794 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4795 if layout.redacted_ranges.is_empty() {
4796 return;
4797 }
4798
4799 let line_end_overshoot = layout.line_end_overshoot();
4800
4801 // A softer than perfect black
4802 let redaction_color = gpui::rgb(0x0e1111);
4803
4804 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4805 for range in layout.redacted_ranges.iter() {
4806 self.paint_highlighted_range(
4807 range.clone(),
4808 redaction_color.into(),
4809 Pixels::ZERO,
4810 line_end_overshoot,
4811 layout,
4812 window,
4813 );
4814 }
4815 });
4816 }
4817
4818 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4819 for cursor in &mut layout.visible_cursors {
4820 cursor.paint(layout.content_origin, window, cx);
4821 }
4822 }
4823
4824 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4825 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4826
4827 if let Some(scrollbar_layout) = scrollbar_x {
4828 let hitbox = scrollbar_layout.hitbox.clone();
4829 let text_unit_size = scrollbar_layout.text_unit_size;
4830 let visible_range = scrollbar_layout.visible_range.clone();
4831 let thumb_bounds = scrollbar_layout.thumb_bounds();
4832
4833 if scrollbar_layout.visible {
4834 window.paint_layer(hitbox.bounds, |window| {
4835 window.paint_quad(quad(
4836 hitbox.bounds,
4837 Corners::default(),
4838 cx.theme().colors().scrollbar_track_background,
4839 Edges {
4840 top: Pixels::ZERO,
4841 right: Pixels::ZERO,
4842 bottom: Pixels::ZERO,
4843 left: Pixels::ZERO,
4844 },
4845 cx.theme().colors().scrollbar_track_border,
4846 ));
4847
4848 window.paint_quad(quad(
4849 thumb_bounds,
4850 Corners::default(),
4851 cx.theme().colors().scrollbar_thumb_background,
4852 Edges {
4853 top: Pixels::ZERO,
4854 right: Pixels::ZERO,
4855 bottom: Pixels::ZERO,
4856 left: ScrollbarLayout::BORDER_WIDTH,
4857 },
4858 cx.theme().colors().scrollbar_thumb_border,
4859 ));
4860 })
4861 }
4862
4863 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4864
4865 window.on_mouse_event({
4866 let editor = self.editor.clone();
4867
4868 // there may be a way to avoid this clone
4869 let hitbox = hitbox.clone();
4870
4871 let mut mouse_position = window.mouse_position();
4872 move |event: &MouseMoveEvent, phase, window, cx| {
4873 if phase == DispatchPhase::Capture {
4874 return;
4875 }
4876
4877 editor.update(cx, |editor, cx| {
4878 if event.pressed_button == Some(MouseButton::Left)
4879 && editor
4880 .scroll_manager
4881 .is_dragging_scrollbar(Axis::Horizontal)
4882 {
4883 let x = mouse_position.x;
4884 let new_x = event.position.x;
4885 if (hitbox.left()..hitbox.right()).contains(&x) {
4886 let mut position = editor.scroll_position(cx);
4887
4888 position.x += (new_x - x) / text_unit_size;
4889 if position.x < 0.0 {
4890 position.x = 0.0;
4891 }
4892 editor.set_scroll_position(position, window, cx);
4893 }
4894
4895 cx.stop_propagation();
4896 } else {
4897 editor.scroll_manager.set_is_dragging_scrollbar(
4898 Axis::Horizontal,
4899 false,
4900 cx,
4901 );
4902
4903 if hitbox.is_hovered(window) {
4904 editor.scroll_manager.show_scrollbar(window, cx);
4905 }
4906 }
4907 mouse_position = event.position;
4908 })
4909 }
4910 });
4911
4912 if self
4913 .editor
4914 .read(cx)
4915 .scroll_manager
4916 .is_dragging_scrollbar(Axis::Horizontal)
4917 {
4918 window.on_mouse_event({
4919 let editor = self.editor.clone();
4920 move |_: &MouseUpEvent, phase, _, cx| {
4921 if phase == DispatchPhase::Capture {
4922 return;
4923 }
4924
4925 editor.update(cx, |editor, cx| {
4926 editor.scroll_manager.set_is_dragging_scrollbar(
4927 Axis::Horizontal,
4928 false,
4929 cx,
4930 );
4931 cx.stop_propagation();
4932 });
4933 }
4934 });
4935 } else {
4936 window.on_mouse_event({
4937 let editor = self.editor.clone();
4938
4939 move |event: &MouseDownEvent, phase, window, cx| {
4940 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4941 return;
4942 }
4943
4944 editor.update(cx, |editor, cx| {
4945 editor.scroll_manager.set_is_dragging_scrollbar(
4946 Axis::Horizontal,
4947 true,
4948 cx,
4949 );
4950
4951 let x = event.position.x;
4952
4953 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4954 let center_row =
4955 ((x - hitbox.left()) / text_unit_size).round() as u32;
4956 let top_row = center_row.saturating_sub(
4957 (visible_range.end - visible_range.start) as u32 / 2,
4958 );
4959
4960 let mut position = editor.scroll_position(cx);
4961 position.x = top_row as f32;
4962
4963 editor.set_scroll_position(position, window, cx);
4964 } else {
4965 editor.scroll_manager.show_scrollbar(window, cx);
4966 }
4967
4968 cx.stop_propagation();
4969 });
4970 }
4971 });
4972 }
4973 }
4974
4975 if let Some(scrollbar_layout) = scrollbar_y {
4976 let hitbox = scrollbar_layout.hitbox.clone();
4977 let text_unit_size = scrollbar_layout.text_unit_size;
4978 let visible_range = scrollbar_layout.visible_range.clone();
4979 let thumb_bounds = scrollbar_layout.thumb_bounds();
4980
4981 if scrollbar_layout.visible {
4982 window.paint_layer(hitbox.bounds, |window| {
4983 window.paint_quad(quad(
4984 hitbox.bounds,
4985 Corners::default(),
4986 cx.theme().colors().scrollbar_track_background,
4987 Edges {
4988 top: Pixels::ZERO,
4989 right: Pixels::ZERO,
4990 bottom: Pixels::ZERO,
4991 left: ScrollbarLayout::BORDER_WIDTH,
4992 },
4993 cx.theme().colors().scrollbar_track_border,
4994 ));
4995
4996 let fast_markers =
4997 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4998 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4999 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5000
5001 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5002 for marker in markers.iter().chain(&fast_markers) {
5003 let mut marker = marker.clone();
5004 marker.bounds.origin += hitbox.origin;
5005 window.paint_quad(marker);
5006 }
5007
5008 window.paint_quad(quad(
5009 thumb_bounds,
5010 Corners::default(),
5011 cx.theme().colors().scrollbar_thumb_background,
5012 Edges {
5013 top: Pixels::ZERO,
5014 right: Pixels::ZERO,
5015 bottom: Pixels::ZERO,
5016 left: ScrollbarLayout::BORDER_WIDTH,
5017 },
5018 cx.theme().colors().scrollbar_thumb_border,
5019 ));
5020 });
5021 }
5022
5023 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5024
5025 window.on_mouse_event({
5026 let editor = self.editor.clone();
5027
5028 let hitbox = hitbox.clone();
5029
5030 let mut mouse_position = window.mouse_position();
5031 move |event: &MouseMoveEvent, phase, window, cx| {
5032 if phase == DispatchPhase::Capture {
5033 return;
5034 }
5035
5036 editor.update(cx, |editor, cx| {
5037 if event.pressed_button == Some(MouseButton::Left)
5038 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5039 {
5040 let y = mouse_position.y;
5041 let new_y = event.position.y;
5042 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5043 let mut position = editor.scroll_position(cx);
5044 position.y += (new_y - y) / text_unit_size;
5045 if position.y < 0.0 {
5046 position.y = 0.0;
5047 }
5048 editor.set_scroll_position(position, window, cx);
5049 }
5050 } else {
5051 editor.scroll_manager.set_is_dragging_scrollbar(
5052 Axis::Vertical,
5053 false,
5054 cx,
5055 );
5056
5057 if hitbox.is_hovered(window) {
5058 editor.scroll_manager.show_scrollbar(window, cx);
5059 }
5060 }
5061 mouse_position = event.position;
5062 })
5063 }
5064 });
5065
5066 if self
5067 .editor
5068 .read(cx)
5069 .scroll_manager
5070 .is_dragging_scrollbar(Axis::Vertical)
5071 {
5072 window.on_mouse_event({
5073 let editor = self.editor.clone();
5074 move |_: &MouseUpEvent, phase, _, cx| {
5075 if phase == DispatchPhase::Capture {
5076 return;
5077 }
5078
5079 editor.update(cx, |editor, cx| {
5080 editor.scroll_manager.set_is_dragging_scrollbar(
5081 Axis::Vertical,
5082 false,
5083 cx,
5084 );
5085 cx.stop_propagation();
5086 });
5087 }
5088 });
5089 } else {
5090 window.on_mouse_event({
5091 let editor = self.editor.clone();
5092
5093 move |event: &MouseDownEvent, phase, window, cx| {
5094 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5095 return;
5096 }
5097
5098 editor.update(cx, |editor, cx| {
5099 editor.scroll_manager.set_is_dragging_scrollbar(
5100 Axis::Vertical,
5101 true,
5102 cx,
5103 );
5104
5105 let y = event.position.y;
5106 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5107 let center_row =
5108 ((y - hitbox.top()) / text_unit_size).round() as u32;
5109 let top_row = center_row.saturating_sub(
5110 (visible_range.end - visible_range.start) as u32 / 2,
5111 );
5112 let mut position = editor.scroll_position(cx);
5113 position.y = top_row as f32;
5114 editor.set_scroll_position(position, window, cx);
5115 } else {
5116 editor.scroll_manager.show_scrollbar(window, cx);
5117 }
5118
5119 cx.stop_propagation();
5120 });
5121 }
5122 });
5123 }
5124 }
5125 }
5126
5127 fn collect_fast_scrollbar_markers(
5128 &self,
5129 layout: &EditorLayout,
5130 scrollbar_layout: &ScrollbarLayout,
5131 cx: &mut App,
5132 ) -> Vec<PaintQuad> {
5133 const LIMIT: usize = 100;
5134 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5135 return vec![];
5136 }
5137 let cursor_ranges = layout
5138 .cursors
5139 .iter()
5140 .map(|(point, color)| ColoredRange {
5141 start: point.row(),
5142 end: point.row(),
5143 color: *color,
5144 })
5145 .collect_vec();
5146 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5147 }
5148
5149 fn refresh_slow_scrollbar_markers(
5150 &self,
5151 layout: &EditorLayout,
5152 scrollbar_layout: &ScrollbarLayout,
5153 window: &mut Window,
5154 cx: &mut App,
5155 ) {
5156 self.editor.update(cx, |editor, cx| {
5157 if !editor.is_singleton(cx)
5158 || !editor
5159 .scrollbar_marker_state
5160 .should_refresh(scrollbar_layout.hitbox.size)
5161 {
5162 return;
5163 }
5164
5165 let scrollbar_layout = scrollbar_layout.clone();
5166 let background_highlights = editor.background_highlights.clone();
5167 let snapshot = layout.position_map.snapshot.clone();
5168 let theme = cx.theme().clone();
5169 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5170
5171 editor.scrollbar_marker_state.dirty = false;
5172 editor.scrollbar_marker_state.pending_refresh =
5173 Some(cx.spawn_in(window, |editor, mut cx| async move {
5174 let scrollbar_size = scrollbar_layout.hitbox.size;
5175 let scrollbar_markers = cx
5176 .background_executor()
5177 .spawn(async move {
5178 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5179 let mut marker_quads = Vec::new();
5180 if scrollbar_settings.git_diff {
5181 let marker_row_ranges =
5182 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5183 let start_display_row =
5184 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5185 .to_display_point(&snapshot.display_snapshot)
5186 .row();
5187 let mut end_display_row =
5188 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5189 .to_display_point(&snapshot.display_snapshot)
5190 .row();
5191 if end_display_row != start_display_row {
5192 end_display_row.0 -= 1;
5193 }
5194 let color = match &hunk.status() {
5195 DiffHunkStatus::Added => theme.status().created,
5196 DiffHunkStatus::Modified => theme.status().modified,
5197 DiffHunkStatus::Removed => theme.status().deleted,
5198 };
5199 ColoredRange {
5200 start: start_display_row,
5201 end: end_display_row,
5202 color,
5203 }
5204 });
5205
5206 marker_quads.extend(
5207 scrollbar_layout
5208 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5209 );
5210 }
5211
5212 for (background_highlight_id, (_, background_ranges)) in
5213 background_highlights.iter()
5214 {
5215 let is_search_highlights = *background_highlight_id
5216 == TypeId::of::<BufferSearchHighlights>();
5217 let is_symbol_occurrences = *background_highlight_id
5218 == TypeId::of::<DocumentHighlightRead>()
5219 || *background_highlight_id
5220 == TypeId::of::<DocumentHighlightWrite>();
5221 if (is_search_highlights && scrollbar_settings.search_results)
5222 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5223 {
5224 let mut color = theme.status().info;
5225 if is_symbol_occurrences {
5226 color.fade_out(0.5);
5227 }
5228 let marker_row_ranges = background_ranges.iter().map(|range| {
5229 let display_start = range
5230 .start
5231 .to_display_point(&snapshot.display_snapshot);
5232 let display_end =
5233 range.end.to_display_point(&snapshot.display_snapshot);
5234 ColoredRange {
5235 start: display_start.row(),
5236 end: display_end.row(),
5237 color,
5238 }
5239 });
5240 marker_quads.extend(
5241 scrollbar_layout
5242 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5243 );
5244 }
5245 }
5246
5247 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5248 let diagnostics = snapshot
5249 .buffer_snapshot
5250 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5251 // Don't show diagnostics the user doesn't care about
5252 .filter(|diagnostic| {
5253 match (
5254 scrollbar_settings.diagnostics,
5255 diagnostic.diagnostic.severity,
5256 ) {
5257 (ScrollbarDiagnostics::All, _) => true,
5258 (
5259 ScrollbarDiagnostics::Error,
5260 DiagnosticSeverity::ERROR,
5261 ) => true,
5262 (
5263 ScrollbarDiagnostics::Warning,
5264 DiagnosticSeverity::ERROR
5265 | DiagnosticSeverity::WARNING,
5266 ) => true,
5267 (
5268 ScrollbarDiagnostics::Information,
5269 DiagnosticSeverity::ERROR
5270 | DiagnosticSeverity::WARNING
5271 | DiagnosticSeverity::INFORMATION,
5272 ) => true,
5273 (_, _) => false,
5274 }
5275 })
5276 // We want to sort by severity, in order to paint the most severe diagnostics last.
5277 .sorted_by_key(|diagnostic| {
5278 std::cmp::Reverse(diagnostic.diagnostic.severity)
5279 });
5280
5281 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5282 let start_display = diagnostic
5283 .range
5284 .start
5285 .to_display_point(&snapshot.display_snapshot);
5286 let end_display = diagnostic
5287 .range
5288 .end
5289 .to_display_point(&snapshot.display_snapshot);
5290 let color = match diagnostic.diagnostic.severity {
5291 DiagnosticSeverity::ERROR => theme.status().error,
5292 DiagnosticSeverity::WARNING => theme.status().warning,
5293 DiagnosticSeverity::INFORMATION => theme.status().info,
5294 _ => theme.status().hint,
5295 };
5296 ColoredRange {
5297 start: start_display.row(),
5298 end: end_display.row(),
5299 color,
5300 }
5301 });
5302 marker_quads.extend(
5303 scrollbar_layout
5304 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5305 );
5306 }
5307
5308 Arc::from(marker_quads)
5309 })
5310 .await;
5311
5312 editor.update(&mut cx, |editor, cx| {
5313 editor.scrollbar_marker_state.markers = scrollbar_markers;
5314 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5315 editor.scrollbar_marker_state.pending_refresh = None;
5316 cx.notify();
5317 })?;
5318
5319 Ok(())
5320 }));
5321 });
5322 }
5323
5324 #[allow(clippy::too_many_arguments)]
5325 fn paint_highlighted_range(
5326 &self,
5327 range: Range<DisplayPoint>,
5328 color: Hsla,
5329 corner_radius: Pixels,
5330 line_end_overshoot: Pixels,
5331 layout: &EditorLayout,
5332 window: &mut Window,
5333 ) {
5334 let start_row = layout.visible_display_row_range.start;
5335 let end_row = layout.visible_display_row_range.end;
5336 if range.start != range.end {
5337 let row_range = if range.end.column() == 0 {
5338 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5339 } else {
5340 cmp::max(range.start.row(), start_row)
5341 ..cmp::min(range.end.row().next_row(), end_row)
5342 };
5343
5344 let highlighted_range = HighlightedRange {
5345 color,
5346 line_height: layout.position_map.line_height,
5347 corner_radius,
5348 start_y: layout.content_origin.y
5349 + row_range.start.as_f32() * layout.position_map.line_height
5350 - layout.position_map.scroll_pixel_position.y,
5351 lines: row_range
5352 .iter_rows()
5353 .map(|row| {
5354 let line_layout =
5355 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5356 HighlightedRangeLine {
5357 start_x: if row == range.start.row() {
5358 layout.content_origin.x
5359 + line_layout.x_for_index(range.start.column() as usize)
5360 - layout.position_map.scroll_pixel_position.x
5361 } else {
5362 layout.content_origin.x
5363 - layout.position_map.scroll_pixel_position.x
5364 },
5365 end_x: if row == range.end.row() {
5366 layout.content_origin.x
5367 + line_layout.x_for_index(range.end.column() as usize)
5368 - layout.position_map.scroll_pixel_position.x
5369 } else {
5370 layout.content_origin.x + line_layout.width + line_end_overshoot
5371 - layout.position_map.scroll_pixel_position.x
5372 },
5373 }
5374 })
5375 .collect(),
5376 };
5377
5378 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5379 }
5380 }
5381
5382 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5383 if let Some(mut inline_blame) = layout.inline_blame.take() {
5384 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5385 inline_blame.paint(window, cx);
5386 })
5387 }
5388 }
5389
5390 fn paint_diff_hunk_controls(
5391 &mut self,
5392 layout: &mut EditorLayout,
5393 window: &mut Window,
5394 cx: &mut App,
5395 ) {
5396 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5397 diff_hunk_control.paint(window, cx);
5398 }
5399 }
5400
5401 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5402 for mut block in layout.blocks.drain(..) {
5403 block.element.paint(window, cx);
5404 }
5405 }
5406
5407 fn paint_inline_completion_popover(
5408 &mut self,
5409 layout: &mut EditorLayout,
5410 window: &mut Window,
5411 cx: &mut App,
5412 ) {
5413 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5414 inline_completion_popover.paint(window, cx);
5415 }
5416 }
5417
5418 fn paint_mouse_context_menu(
5419 &mut self,
5420 layout: &mut EditorLayout,
5421 window: &mut Window,
5422 cx: &mut App,
5423 ) {
5424 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5425 mouse_context_menu.paint(window, cx);
5426 }
5427 }
5428
5429 fn paint_scroll_wheel_listener(
5430 &mut self,
5431 layout: &EditorLayout,
5432 window: &mut Window,
5433 cx: &mut App,
5434 ) {
5435 window.on_mouse_event({
5436 let position_map = layout.position_map.clone();
5437 let editor = self.editor.clone();
5438 let hitbox = layout.hitbox.clone();
5439 let mut delta = ScrollDelta::default();
5440
5441 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5442 // accidentally turn off their scrolling.
5443 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5444
5445 move |event: &ScrollWheelEvent, phase, window, cx| {
5446 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5447 delta = delta.coalesce(event.delta);
5448 editor.update(cx, |editor, cx| {
5449 let position_map: &PositionMap = &position_map;
5450
5451 let line_height = position_map.line_height;
5452 let max_glyph_width = position_map.em_width;
5453 let (delta, axis) = match delta {
5454 gpui::ScrollDelta::Pixels(mut pixels) => {
5455 //Trackpad
5456 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5457 (pixels, axis)
5458 }
5459
5460 gpui::ScrollDelta::Lines(lines) => {
5461 //Not trackpad
5462 let pixels =
5463 point(lines.x * max_glyph_width, lines.y * line_height);
5464 (pixels, None)
5465 }
5466 };
5467
5468 let current_scroll_position = position_map.snapshot.scroll_position();
5469 let x = (current_scroll_position.x * max_glyph_width
5470 - (delta.x * scroll_sensitivity))
5471 / max_glyph_width;
5472 let y = (current_scroll_position.y * line_height
5473 - (delta.y * scroll_sensitivity))
5474 / line_height;
5475 let mut scroll_position =
5476 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5477 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5478 if forbid_vertical_scroll {
5479 scroll_position.y = current_scroll_position.y;
5480 }
5481
5482 if scroll_position != current_scroll_position {
5483 editor.scroll(scroll_position, axis, window, cx);
5484 cx.stop_propagation();
5485 } else if y < 0. {
5486 // Due to clamping, we may fail to detect cases of overscroll to the top;
5487 // We want the scroll manager to get an update in such cases and detect the change of direction
5488 // on the next frame.
5489 cx.notify();
5490 }
5491 });
5492 }
5493 }
5494 });
5495 }
5496
5497 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5498 self.paint_scroll_wheel_listener(layout, window, cx);
5499
5500 window.on_mouse_event({
5501 let position_map = layout.position_map.clone();
5502 let editor = self.editor.clone();
5503 let multi_buffer_range =
5504 layout
5505 .display_hunks
5506 .iter()
5507 .find_map(|(hunk, hunk_hitbox)| match hunk {
5508 DisplayDiffHunk::Folded { .. } => None,
5509 DisplayDiffHunk::Unfolded {
5510 multi_buffer_range, ..
5511 } => {
5512 if hunk_hitbox
5513 .as_ref()
5514 .map(|hitbox| hitbox.is_hovered(window))
5515 .unwrap_or(false)
5516 {
5517 Some(multi_buffer_range.clone())
5518 } else {
5519 None
5520 }
5521 }
5522 });
5523 let line_numbers = layout.line_numbers.clone();
5524
5525 move |event: &MouseDownEvent, phase, window, cx| {
5526 if phase == DispatchPhase::Bubble {
5527 match event.button {
5528 MouseButton::Left => editor.update(cx, |editor, cx| {
5529 let pending_mouse_down = editor
5530 .pending_mouse_down
5531 .get_or_insert_with(Default::default)
5532 .clone();
5533
5534 *pending_mouse_down.borrow_mut() = Some(event.clone());
5535
5536 Self::mouse_left_down(
5537 editor,
5538 event,
5539 multi_buffer_range.clone(),
5540 &position_map,
5541 line_numbers.as_ref(),
5542 window,
5543 cx,
5544 );
5545 }),
5546 MouseButton::Right => editor.update(cx, |editor, cx| {
5547 Self::mouse_right_down(editor, event, &position_map, window, cx);
5548 }),
5549 MouseButton::Middle => editor.update(cx, |editor, cx| {
5550 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5551 }),
5552 _ => {}
5553 };
5554 }
5555 }
5556 });
5557
5558 window.on_mouse_event({
5559 let editor = self.editor.clone();
5560 let position_map = layout.position_map.clone();
5561
5562 move |event: &MouseUpEvent, phase, window, cx| {
5563 if phase == DispatchPhase::Bubble {
5564 editor.update(cx, |editor, cx| {
5565 Self::mouse_up(editor, event, &position_map, window, cx)
5566 });
5567 }
5568 }
5569 });
5570
5571 window.on_mouse_event({
5572 let editor = self.editor.clone();
5573 let position_map = layout.position_map.clone();
5574 let mut captured_mouse_down = None;
5575
5576 move |event: &MouseUpEvent, phase, window, cx| match phase {
5577 // Clear the pending mouse down during the capture phase,
5578 // so that it happens even if another event handler stops
5579 // propagation.
5580 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5581 let pending_mouse_down = editor
5582 .pending_mouse_down
5583 .get_or_insert_with(Default::default)
5584 .clone();
5585
5586 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5587 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5588 captured_mouse_down = pending_mouse_down.take();
5589 window.refresh();
5590 }
5591 }),
5592 // Fire click handlers during the bubble phase.
5593 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5594 if let Some(mouse_down) = captured_mouse_down.take() {
5595 let event = ClickEvent {
5596 down: mouse_down,
5597 up: event.clone(),
5598 };
5599 Self::click(editor, &event, &position_map, window, cx);
5600 }
5601 }),
5602 }
5603 });
5604
5605 window.on_mouse_event({
5606 let position_map = layout.position_map.clone();
5607 let editor = self.editor.clone();
5608
5609 move |event: &MouseMoveEvent, phase, window, cx| {
5610 if phase == DispatchPhase::Bubble {
5611 editor.update(cx, |editor, cx| {
5612 if editor.hover_state.focused(window, cx) {
5613 return;
5614 }
5615 if event.pressed_button == Some(MouseButton::Left)
5616 || event.pressed_button == Some(MouseButton::Middle)
5617 {
5618 Self::mouse_dragged(editor, event, &position_map, window, cx)
5619 }
5620
5621 Self::mouse_moved(editor, event, &position_map, window, cx)
5622 });
5623 }
5624 }
5625 });
5626 }
5627
5628 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5629 bounds.top_right().x - self.style.scrollbar_width
5630 }
5631
5632 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5633 let style = &self.style;
5634 let font_size = style.text.font_size.to_pixels(window.rem_size());
5635 let layout = window
5636 .text_system()
5637 .shape_line(
5638 SharedString::from(" ".repeat(column)),
5639 font_size,
5640 &[TextRun {
5641 len: column,
5642 font: style.text.font(),
5643 color: Hsla::default(),
5644 background_color: None,
5645 underline: None,
5646 strikethrough: None,
5647 }],
5648 )
5649 .unwrap();
5650
5651 layout.width
5652 }
5653
5654 fn max_line_number_width(
5655 &self,
5656 snapshot: &EditorSnapshot,
5657 window: &mut Window,
5658 cx: &mut App,
5659 ) -> Pixels {
5660 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5661 self.column_pixels(digit_count, window, cx)
5662 }
5663
5664 fn shape_line_number(
5665 &self,
5666 text: SharedString,
5667 color: Hsla,
5668 window: &mut Window,
5669 ) -> anyhow::Result<ShapedLine> {
5670 let run = TextRun {
5671 len: text.len(),
5672 font: self.style.text.font(),
5673 color,
5674 background_color: None,
5675 underline: None,
5676 strikethrough: None,
5677 };
5678 window.text_system().shape_line(
5679 text,
5680 self.style.text.font_size.to_pixels(window.rem_size()),
5681 &[run],
5682 )
5683 }
5684}
5685
5686fn header_jump_data(
5687 snapshot: &EditorSnapshot,
5688 block_row_start: DisplayRow,
5689 height: u32,
5690 for_excerpt: &ExcerptInfo,
5691) -> JumpData {
5692 let range = &for_excerpt.range;
5693 let buffer = &for_excerpt.buffer;
5694 let jump_anchor = range
5695 .primary
5696 .as_ref()
5697 .map_or(range.context.start, |primary| primary.start);
5698
5699 let excerpt_start = range.context.start;
5700 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5701 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5702 0
5703 } else {
5704 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5705 jump_position.row.saturating_sub(excerpt_start_point.row)
5706 };
5707
5708 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5709 .saturating_sub(
5710 snapshot
5711 .scroll_anchor
5712 .scroll_position(&snapshot.display_snapshot)
5713 .y as u32,
5714 );
5715
5716 JumpData::MultiBufferPoint {
5717 excerpt_id: for_excerpt.id,
5718 anchor: jump_anchor,
5719 position: jump_position,
5720 line_offset_from_top,
5721 }
5722}
5723
5724fn inline_completion_accept_indicator(
5725 label: impl Into<SharedString>,
5726 icon: Option<IconName>,
5727 previewing: bool,
5728 focus_handle: FocusHandle,
5729 window: &Window,
5730 cx: &App,
5731) -> AnyElement {
5732 let use_hardcoded_linux_preview_binding;
5733
5734 #[cfg(target_os = "macos")]
5735 {
5736 use_hardcoded_linux_preview_binding = false;
5737 }
5738
5739 #[cfg(not(target_os = "macos"))]
5740 {
5741 use_hardcoded_linux_preview_binding = previewing;
5742 }
5743
5744 let accept_keystroke = if use_hardcoded_linux_preview_binding {
5745 Keystroke {
5746 modifiers: Default::default(),
5747 key: "enter".to_string(),
5748 key_char: None,
5749 }
5750 } else {
5751 let bindings = window.bindings_for_action_in(&crate::AcceptInlineCompletion, &focus_handle);
5752 if let Some(keystroke) = bindings
5753 .last()
5754 .and_then(|binding| binding.keystrokes().first())
5755 {
5756 // TODO: clone unnecessary once `use_hardcoded_linux_preview_binding` is removed.
5757 keystroke.clone()
5758 } else {
5759 return div().into_any();
5760 }
5761 };
5762
5763 let accept_key = h_flex()
5764 .px_0p5()
5765 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5766 .text_size(TextSize::XSmall.rems(cx))
5767 .text_color(cx.theme().colors().text)
5768 .gap_1()
5769 .when(!previewing, |parent| {
5770 parent.children(ui::render_modifiers(
5771 &accept_keystroke.modifiers,
5772 PlatformStyle::platform(),
5773 Some(Color::Default),
5774 false,
5775 ))
5776 })
5777 .child(accept_keystroke.key.clone());
5778
5779 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5780
5781 h_flex()
5782 .py_0p5()
5783 .pl_1()
5784 .pr(padding_right)
5785 .gap_1()
5786 .bg(cx.theme().colors().text_accent.opacity(0.15))
5787 .border_1()
5788 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5789 .rounded_md()
5790 .shadow_sm()
5791 .child(accept_key)
5792 .child(Label::new(label).size(LabelSize::Small))
5793 .when_some(icon, |element, icon| {
5794 element.child(
5795 div()
5796 .mt(px(1.5))
5797 .child(Icon::new(icon).size(IconSize::Small)),
5798 )
5799 })
5800 .into_any()
5801}
5802
5803#[allow(clippy::too_many_arguments)]
5804fn prepaint_gutter_button(
5805 button: IconButton,
5806 row: DisplayRow,
5807 line_height: Pixels,
5808 gutter_dimensions: &GutterDimensions,
5809 scroll_pixel_position: gpui::Point<Pixels>,
5810 gutter_hitbox: &Hitbox,
5811 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5812 window: &mut Window,
5813 cx: &mut App,
5814) -> AnyElement {
5815 let mut button = button.into_any_element();
5816 let available_space = size(
5817 AvailableSpace::MinContent,
5818 AvailableSpace::Definite(line_height),
5819 );
5820 let indicator_size = button.layout_as_root(available_space, window, cx);
5821
5822 let blame_width = gutter_dimensions.git_blame_entries_width;
5823 let gutter_width = rows_with_hunk_bounds
5824 .get(&row)
5825 .map(|bounds| bounds.size.width);
5826 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5827
5828 let mut x = left_offset;
5829 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5830 - indicator_size.width
5831 - left_offset;
5832 x += available_width / 2.;
5833
5834 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5835 y += (line_height - indicator_size.height) / 2.;
5836
5837 button.prepaint_as_root(
5838 gutter_hitbox.origin + point(x, y),
5839 available_space,
5840 window,
5841 cx,
5842 );
5843 button
5844}
5845
5846fn render_inline_blame_entry(
5847 blame: &gpui::Entity<GitBlame>,
5848 blame_entry: BlameEntry,
5849 style: &EditorStyle,
5850 workspace: Option<WeakEntity<Workspace>>,
5851 cx: &mut App,
5852) -> AnyElement {
5853 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5854
5855 let author = blame_entry.author.as_deref().unwrap_or_default();
5856 let summary_enabled = ProjectSettings::get_global(cx)
5857 .git
5858 .show_inline_commit_summary();
5859
5860 let text = match blame_entry.summary.as_ref() {
5861 Some(summary) if summary_enabled => {
5862 format!("{}, {} - {}", author, relative_timestamp, summary)
5863 }
5864 _ => format!("{}, {}", author, relative_timestamp),
5865 };
5866
5867 let details = blame.read(cx).details_for_entry(&blame_entry);
5868
5869 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5870
5871 h_flex()
5872 .id("inline-blame")
5873 .w_full()
5874 .font_family(style.text.font().family)
5875 .text_color(cx.theme().status().hint)
5876 .line_height(style.text.line_height)
5877 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5878 .child(text)
5879 .gap_2()
5880 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5881 .into_any()
5882}
5883
5884fn render_blame_entry(
5885 ix: usize,
5886 blame: &gpui::Entity<GitBlame>,
5887 blame_entry: BlameEntry,
5888 style: &EditorStyle,
5889 last_used_color: &mut Option<(PlayerColor, Oid)>,
5890 editor: Entity<Editor>,
5891 cx: &mut App,
5892) -> AnyElement {
5893 let mut sha_color = cx
5894 .theme()
5895 .players()
5896 .color_for_participant(blame_entry.sha.into());
5897 // If the last color we used is the same as the one we get for this line, but
5898 // the commit SHAs are different, then we try again to get a different color.
5899 match *last_used_color {
5900 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5901 let index: u32 = blame_entry.sha.into();
5902 sha_color = cx.theme().players().color_for_participant(index + 1);
5903 }
5904 _ => {}
5905 };
5906 last_used_color.replace((sha_color, blame_entry.sha));
5907
5908 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5909
5910 let short_commit_id = blame_entry.sha.display_short();
5911
5912 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5913 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5914
5915 let details = blame.read(cx).details_for_entry(&blame_entry);
5916
5917 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5918
5919 let tooltip =
5920 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5921
5922 h_flex()
5923 .w_full()
5924 .justify_between()
5925 .font_family(style.text.font().family)
5926 .line_height(style.text.line_height)
5927 .id(("blame", ix))
5928 .text_color(cx.theme().status().hint)
5929 .pr_2()
5930 .gap_2()
5931 .child(
5932 h_flex()
5933 .items_center()
5934 .gap_2()
5935 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5936 .child(name),
5937 )
5938 .child(relative_timestamp)
5939 .on_mouse_down(MouseButton::Right, {
5940 let blame_entry = blame_entry.clone();
5941 let details = details.clone();
5942 move |event, window, cx| {
5943 deploy_blame_entry_context_menu(
5944 &blame_entry,
5945 details.as_ref(),
5946 editor.clone(),
5947 event.position,
5948 window,
5949 cx,
5950 );
5951 }
5952 })
5953 .hover(|style| style.bg(cx.theme().colors().element_hover))
5954 .when_some(
5955 details.and_then(|details| details.permalink),
5956 |this, url| {
5957 let url = url.clone();
5958 this.cursor_pointer().on_click(move |_, _, cx| {
5959 cx.stop_propagation();
5960 cx.open_url(url.as_str())
5961 })
5962 },
5963 )
5964 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5965 .into_any()
5966}
5967
5968fn deploy_blame_entry_context_menu(
5969 blame_entry: &BlameEntry,
5970 details: Option<&CommitDetails>,
5971 editor: Entity<Editor>,
5972 position: gpui::Point<Pixels>,
5973 window: &mut Window,
5974 cx: &mut App,
5975) {
5976 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5977 let sha = format!("{}", blame_entry.sha);
5978 menu.on_blur_subscription(Subscription::new(|| {}))
5979 .entry("Copy commit SHA", None, move |_, cx| {
5980 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5981 })
5982 .when_some(
5983 details.and_then(|details| details.permalink.clone()),
5984 |this, url| {
5985 this.entry("Open permalink", None, move |_, cx| {
5986 cx.open_url(url.as_str())
5987 })
5988 },
5989 )
5990 });
5991
5992 editor.update(cx, move |editor, cx| {
5993 editor.mouse_context_menu = Some(MouseContextMenu::new(
5994 MenuPosition::PinnedToScreen(position),
5995 context_menu,
5996 window,
5997 cx,
5998 ));
5999 cx.notify();
6000 });
6001}
6002
6003#[derive(Debug)]
6004pub(crate) struct LineWithInvisibles {
6005 fragments: SmallVec<[LineFragment; 1]>,
6006 invisibles: Vec<Invisible>,
6007 len: usize,
6008 width: Pixels,
6009 font_size: Pixels,
6010}
6011
6012#[allow(clippy::large_enum_variant)]
6013enum LineFragment {
6014 Text(ShapedLine),
6015 Element {
6016 element: Option<AnyElement>,
6017 size: Size<Pixels>,
6018 len: usize,
6019 },
6020}
6021
6022impl fmt::Debug for LineFragment {
6023 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6024 match self {
6025 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6026 LineFragment::Element { size, len, .. } => f
6027 .debug_struct("Element")
6028 .field("size", size)
6029 .field("len", len)
6030 .finish(),
6031 }
6032 }
6033}
6034
6035impl LineWithInvisibles {
6036 #[allow(clippy::too_many_arguments)]
6037 fn from_chunks<'a>(
6038 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6039 editor_style: &EditorStyle,
6040 max_line_len: usize,
6041 max_line_count: usize,
6042 editor_mode: EditorMode,
6043 text_width: Pixels,
6044 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6045 window: &mut Window,
6046 cx: &mut App,
6047 ) -> Vec<Self> {
6048 let text_style = &editor_style.text;
6049 let mut layouts = Vec::with_capacity(max_line_count);
6050 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6051 let mut line = String::new();
6052 let mut invisibles = Vec::new();
6053 let mut width = Pixels::ZERO;
6054 let mut len = 0;
6055 let mut styles = Vec::new();
6056 let mut non_whitespace_added = false;
6057 let mut row = 0;
6058 let mut line_exceeded_max_len = false;
6059 let font_size = text_style.font_size.to_pixels(window.rem_size());
6060
6061 let ellipsis = SharedString::from("⋯");
6062
6063 for highlighted_chunk in chunks.chain([HighlightedChunk {
6064 text: "\n",
6065 style: None,
6066 is_tab: false,
6067 replacement: None,
6068 }]) {
6069 if let Some(replacement) = highlighted_chunk.replacement {
6070 if !line.is_empty() {
6071 let shaped_line = window
6072 .text_system()
6073 .shape_line(line.clone().into(), font_size, &styles)
6074 .unwrap();
6075 width += shaped_line.width;
6076 len += shaped_line.len;
6077 fragments.push(LineFragment::Text(shaped_line));
6078 line.clear();
6079 styles.clear();
6080 }
6081
6082 match replacement {
6083 ChunkReplacement::Renderer(renderer) => {
6084 let available_width = if renderer.constrain_width {
6085 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6086 ellipsis.clone()
6087 } else {
6088 SharedString::from(Arc::from(highlighted_chunk.text))
6089 };
6090 let shaped_line = window
6091 .text_system()
6092 .shape_line(
6093 chunk,
6094 font_size,
6095 &[text_style.to_run(highlighted_chunk.text.len())],
6096 )
6097 .unwrap();
6098 AvailableSpace::Definite(shaped_line.width)
6099 } else {
6100 AvailableSpace::MinContent
6101 };
6102
6103 let mut element = (renderer.render)(&mut ChunkRendererContext {
6104 context: cx,
6105 window,
6106 max_width: text_width,
6107 });
6108 let line_height = text_style.line_height_in_pixels(window.rem_size());
6109 let size = element.layout_as_root(
6110 size(available_width, AvailableSpace::Definite(line_height)),
6111 window,
6112 cx,
6113 );
6114
6115 width += size.width;
6116 len += highlighted_chunk.text.len();
6117 fragments.push(LineFragment::Element {
6118 element: Some(element),
6119 size,
6120 len: highlighted_chunk.text.len(),
6121 });
6122 }
6123 ChunkReplacement::Str(x) => {
6124 let text_style = if let Some(style) = highlighted_chunk.style {
6125 Cow::Owned(text_style.clone().highlight(style))
6126 } else {
6127 Cow::Borrowed(text_style)
6128 };
6129
6130 let run = TextRun {
6131 len: x.len(),
6132 font: text_style.font(),
6133 color: text_style.color,
6134 background_color: text_style.background_color,
6135 underline: text_style.underline,
6136 strikethrough: text_style.strikethrough,
6137 };
6138 let line_layout = window
6139 .text_system()
6140 .shape_line(x, font_size, &[run])
6141 .unwrap()
6142 .with_len(highlighted_chunk.text.len());
6143
6144 width += line_layout.width;
6145 len += highlighted_chunk.text.len();
6146 fragments.push(LineFragment::Text(line_layout))
6147 }
6148 }
6149 } else {
6150 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6151 if ix > 0 {
6152 let shaped_line = window
6153 .text_system()
6154 .shape_line(line.clone().into(), font_size, &styles)
6155 .unwrap();
6156 width += shaped_line.width;
6157 len += shaped_line.len;
6158 fragments.push(LineFragment::Text(shaped_line));
6159 layouts.push(Self {
6160 width: mem::take(&mut width),
6161 len: mem::take(&mut len),
6162 fragments: mem::take(&mut fragments),
6163 invisibles: std::mem::take(&mut invisibles),
6164 font_size,
6165 });
6166
6167 line.clear();
6168 styles.clear();
6169 row += 1;
6170 line_exceeded_max_len = false;
6171 non_whitespace_added = false;
6172 if row == max_line_count {
6173 return layouts;
6174 }
6175 }
6176
6177 if !line_chunk.is_empty() && !line_exceeded_max_len {
6178 let text_style = if let Some(style) = highlighted_chunk.style {
6179 Cow::Owned(text_style.clone().highlight(style))
6180 } else {
6181 Cow::Borrowed(text_style)
6182 };
6183
6184 if line.len() + line_chunk.len() > max_line_len {
6185 let mut chunk_len = max_line_len - line.len();
6186 while !line_chunk.is_char_boundary(chunk_len) {
6187 chunk_len -= 1;
6188 }
6189 line_chunk = &line_chunk[..chunk_len];
6190 line_exceeded_max_len = true;
6191 }
6192
6193 styles.push(TextRun {
6194 len: line_chunk.len(),
6195 font: text_style.font(),
6196 color: text_style.color,
6197 background_color: text_style.background_color,
6198 underline: text_style.underline,
6199 strikethrough: text_style.strikethrough,
6200 });
6201
6202 if editor_mode == EditorMode::Full {
6203 // Line wrap pads its contents with fake whitespaces,
6204 // avoid printing them
6205 let is_soft_wrapped = is_row_soft_wrapped(row);
6206 if highlighted_chunk.is_tab {
6207 if non_whitespace_added || !is_soft_wrapped {
6208 invisibles.push(Invisible::Tab {
6209 line_start_offset: line.len(),
6210 line_end_offset: line.len() + line_chunk.len(),
6211 });
6212 }
6213 } else {
6214 invisibles.extend(line_chunk.char_indices().filter_map(
6215 |(index, c)| {
6216 let is_whitespace = c.is_whitespace();
6217 non_whitespace_added |= !is_whitespace;
6218 if is_whitespace
6219 && (non_whitespace_added || !is_soft_wrapped)
6220 {
6221 Some(Invisible::Whitespace {
6222 line_offset: line.len() + index,
6223 })
6224 } else {
6225 None
6226 }
6227 },
6228 ))
6229 }
6230 }
6231
6232 line.push_str(line_chunk);
6233 }
6234 }
6235 }
6236 }
6237
6238 layouts
6239 }
6240
6241 #[allow(clippy::too_many_arguments)]
6242 fn prepaint(
6243 &mut self,
6244 line_height: Pixels,
6245 scroll_pixel_position: gpui::Point<Pixels>,
6246 row: DisplayRow,
6247 content_origin: gpui::Point<Pixels>,
6248 line_elements: &mut SmallVec<[AnyElement; 1]>,
6249 window: &mut Window,
6250 cx: &mut App,
6251 ) {
6252 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6253 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6254 for fragment in &mut self.fragments {
6255 match fragment {
6256 LineFragment::Text(line) => {
6257 fragment_origin.x += line.width;
6258 }
6259 LineFragment::Element { element, size, .. } => {
6260 let mut element = element
6261 .take()
6262 .expect("you can't prepaint LineWithInvisibles twice");
6263
6264 // Center the element vertically within the line.
6265 let mut element_origin = fragment_origin;
6266 element_origin.y += (line_height - size.height) / 2.;
6267 element.prepaint_at(element_origin, window, cx);
6268 line_elements.push(element);
6269
6270 fragment_origin.x += size.width;
6271 }
6272 }
6273 }
6274 }
6275
6276 #[allow(clippy::too_many_arguments)]
6277 fn draw(
6278 &self,
6279 layout: &EditorLayout,
6280 row: DisplayRow,
6281 content_origin: gpui::Point<Pixels>,
6282 whitespace_setting: ShowWhitespaceSetting,
6283 selection_ranges: &[Range<DisplayPoint>],
6284 window: &mut Window,
6285 cx: &mut App,
6286 ) {
6287 let line_height = layout.position_map.line_height;
6288 let line_y = line_height
6289 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6290
6291 let mut fragment_origin =
6292 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6293
6294 for fragment in &self.fragments {
6295 match fragment {
6296 LineFragment::Text(line) => {
6297 line.paint(fragment_origin, line_height, window, cx)
6298 .log_err();
6299 fragment_origin.x += line.width;
6300 }
6301 LineFragment::Element { size, .. } => {
6302 fragment_origin.x += size.width;
6303 }
6304 }
6305 }
6306
6307 self.draw_invisibles(
6308 selection_ranges,
6309 layout,
6310 content_origin,
6311 line_y,
6312 row,
6313 line_height,
6314 whitespace_setting,
6315 window,
6316 cx,
6317 );
6318 }
6319
6320 #[allow(clippy::too_many_arguments)]
6321 fn draw_invisibles(
6322 &self,
6323 selection_ranges: &[Range<DisplayPoint>],
6324 layout: &EditorLayout,
6325 content_origin: gpui::Point<Pixels>,
6326 line_y: Pixels,
6327 row: DisplayRow,
6328 line_height: Pixels,
6329 whitespace_setting: ShowWhitespaceSetting,
6330 window: &mut Window,
6331 cx: &mut App,
6332 ) {
6333 let extract_whitespace_info = |invisible: &Invisible| {
6334 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6335 Invisible::Tab {
6336 line_start_offset,
6337 line_end_offset,
6338 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6339 Invisible::Whitespace { line_offset } => {
6340 (*line_offset, line_offset + 1, &layout.space_invisible)
6341 }
6342 };
6343
6344 let x_offset = self.x_for_index(token_offset);
6345 let invisible_offset =
6346 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6347 let origin = content_origin
6348 + gpui::point(
6349 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6350 line_y,
6351 );
6352
6353 (
6354 [token_offset, token_end_offset],
6355 Box::new(move |window: &mut Window, cx: &mut App| {
6356 invisible_symbol
6357 .paint(origin, line_height, window, cx)
6358 .log_err();
6359 }),
6360 )
6361 };
6362
6363 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6364 match whitespace_setting {
6365 ShowWhitespaceSetting::None => (),
6366 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6367 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6368 let invisible_point = DisplayPoint::new(row, start as u32);
6369 if !selection_ranges
6370 .iter()
6371 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6372 {
6373 return;
6374 }
6375
6376 paint(window, cx);
6377 }),
6378
6379 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6380 // - It is a tab
6381 // - It is adjacent to an edge (start or end)
6382 // - It is adjacent to a whitespace (left or right)
6383 ShowWhitespaceSetting::Boundary => {
6384 // 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
6385 // the above cases.
6386 // Note: We zip in the original `invisibles` to check for tab equality
6387 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6388 for (([start, end], paint), invisible) in
6389 invisible_iter.zip_eq(self.invisibles.iter())
6390 {
6391 let should_render = match (&last_seen, invisible) {
6392 (_, Invisible::Tab { .. }) => true,
6393 (Some((_, last_end, _)), _) => *last_end == start,
6394 _ => false,
6395 };
6396
6397 if should_render || start == 0 || end == self.len {
6398 paint(window, cx);
6399
6400 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6401 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6402 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6403 // Note that we need to make sure that the last one is actually adjacent
6404 if !should_render_last && last_end == start {
6405 paint_last(window, cx);
6406 }
6407 }
6408 }
6409
6410 // Manually render anything within a selection
6411 let invisible_point = DisplayPoint::new(row, start as u32);
6412 if selection_ranges.iter().any(|region| {
6413 region.start <= invisible_point && invisible_point < region.end
6414 }) {
6415 paint(window, cx);
6416 }
6417
6418 last_seen = Some((should_render, end, paint));
6419 }
6420 }
6421 }
6422 }
6423
6424 pub fn x_for_index(&self, index: usize) -> Pixels {
6425 let mut fragment_start_x = Pixels::ZERO;
6426 let mut fragment_start_index = 0;
6427
6428 for fragment in &self.fragments {
6429 match fragment {
6430 LineFragment::Text(shaped_line) => {
6431 let fragment_end_index = fragment_start_index + shaped_line.len;
6432 if index < fragment_end_index {
6433 return fragment_start_x
6434 + shaped_line.x_for_index(index - fragment_start_index);
6435 }
6436 fragment_start_x += shaped_line.width;
6437 fragment_start_index = fragment_end_index;
6438 }
6439 LineFragment::Element { len, size, .. } => {
6440 let fragment_end_index = fragment_start_index + len;
6441 if index < fragment_end_index {
6442 return fragment_start_x;
6443 }
6444 fragment_start_x += size.width;
6445 fragment_start_index = fragment_end_index;
6446 }
6447 }
6448 }
6449
6450 fragment_start_x
6451 }
6452
6453 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6454 let mut fragment_start_x = Pixels::ZERO;
6455 let mut fragment_start_index = 0;
6456
6457 for fragment in &self.fragments {
6458 match fragment {
6459 LineFragment::Text(shaped_line) => {
6460 let fragment_end_x = fragment_start_x + shaped_line.width;
6461 if x < fragment_end_x {
6462 return Some(
6463 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6464 );
6465 }
6466 fragment_start_x = fragment_end_x;
6467 fragment_start_index += shaped_line.len;
6468 }
6469 LineFragment::Element { len, size, .. } => {
6470 let fragment_end_x = fragment_start_x + size.width;
6471 if x < fragment_end_x {
6472 return Some(fragment_start_index);
6473 }
6474 fragment_start_index += len;
6475 fragment_start_x = fragment_end_x;
6476 }
6477 }
6478 }
6479
6480 None
6481 }
6482
6483 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6484 let mut fragment_start_index = 0;
6485
6486 for fragment in &self.fragments {
6487 match fragment {
6488 LineFragment::Text(shaped_line) => {
6489 let fragment_end_index = fragment_start_index + shaped_line.len;
6490 if index < fragment_end_index {
6491 return shaped_line.font_id_for_index(index - fragment_start_index);
6492 }
6493 fragment_start_index = fragment_end_index;
6494 }
6495 LineFragment::Element { len, .. } => {
6496 let fragment_end_index = fragment_start_index + len;
6497 if index < fragment_end_index {
6498 return None;
6499 }
6500 fragment_start_index = fragment_end_index;
6501 }
6502 }
6503 }
6504
6505 None
6506 }
6507}
6508
6509#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6510enum Invisible {
6511 /// A tab character
6512 ///
6513 /// A tab character is internally represented by spaces (configured by the user's tab width)
6514 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6515 /// adjacency checks.
6516 Tab {
6517 line_start_offset: usize,
6518 line_end_offset: usize,
6519 },
6520 Whitespace {
6521 line_offset: usize,
6522 },
6523}
6524
6525impl EditorElement {
6526 /// Returns the rem size to use when rendering the [`EditorElement`].
6527 ///
6528 /// This allows UI elements to scale based on the `buffer_font_size`.
6529 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6530 match self.editor.read(cx).mode {
6531 EditorMode::Full => {
6532 let buffer_font_size = self.style.text.font_size;
6533 match buffer_font_size {
6534 AbsoluteLength::Pixels(pixels) => {
6535 let rem_size_scale = {
6536 // Our default UI font size is 14px on a 16px base scale.
6537 // This means the default UI font size is 0.875rems.
6538 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6539
6540 // We then determine the delta between a single rem and the default font
6541 // size scale.
6542 let default_font_size_delta = 1. - default_font_size_scale;
6543
6544 // Finally, we add this delta to 1rem to get the scale factor that
6545 // should be used to scale up the UI.
6546 1. + default_font_size_delta
6547 };
6548
6549 Some(pixels * rem_size_scale)
6550 }
6551 AbsoluteLength::Rems(rems) => {
6552 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6553 }
6554 }
6555 }
6556 // We currently use single-line and auto-height editors in UI contexts,
6557 // so we don't want to scale everything with the buffer font size, as it
6558 // ends up looking off.
6559 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6560 }
6561 }
6562}
6563
6564impl Element for EditorElement {
6565 type RequestLayoutState = ();
6566 type PrepaintState = EditorLayout;
6567
6568 fn id(&self) -> Option<ElementId> {
6569 None
6570 }
6571
6572 fn request_layout(
6573 &mut self,
6574 _: Option<&GlobalElementId>,
6575 window: &mut Window,
6576 cx: &mut App,
6577 ) -> (gpui::LayoutId, ()) {
6578 let rem_size = self.rem_size(cx);
6579 window.with_rem_size(rem_size, |window| {
6580 self.editor.update(cx, |editor, cx| {
6581 editor.set_style(self.style.clone(), window, cx);
6582
6583 let layout_id = match editor.mode {
6584 EditorMode::SingleLine { auto_width } => {
6585 let rem_size = window.rem_size();
6586
6587 let height = self.style.text.line_height_in_pixels(rem_size);
6588 if auto_width {
6589 let editor_handle = cx.entity().clone();
6590 let style = self.style.clone();
6591 window.request_measured_layout(
6592 Style::default(),
6593 move |_, _, window, cx| {
6594 let editor_snapshot = editor_handle
6595 .update(cx, |editor, cx| editor.snapshot(window, cx));
6596 let line = Self::layout_lines(
6597 DisplayRow(0)..DisplayRow(1),
6598 &editor_snapshot,
6599 &style,
6600 px(f32::MAX),
6601 |_| false, // Single lines never soft wrap
6602 window,
6603 cx,
6604 )
6605 .pop()
6606 .unwrap();
6607
6608 let font_id =
6609 window.text_system().resolve_font(&style.text.font());
6610 let font_size =
6611 style.text.font_size.to_pixels(window.rem_size());
6612 let em_width =
6613 window.text_system().em_width(font_id, font_size).unwrap();
6614
6615 size(line.width + em_width, height)
6616 },
6617 )
6618 } else {
6619 let mut style = Style::default();
6620 style.size.height = height.into();
6621 style.size.width = relative(1.).into();
6622 window.request_layout(style, None, cx)
6623 }
6624 }
6625 EditorMode::AutoHeight { max_lines } => {
6626 let editor_handle = cx.entity().clone();
6627 let max_line_number_width =
6628 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6629 window.request_measured_layout(
6630 Style::default(),
6631 move |known_dimensions, available_space, window, cx| {
6632 editor_handle
6633 .update(cx, |editor, cx| {
6634 compute_auto_height_layout(
6635 editor,
6636 max_lines,
6637 max_line_number_width,
6638 known_dimensions,
6639 available_space.width,
6640 window,
6641 cx,
6642 )
6643 })
6644 .unwrap_or_default()
6645 },
6646 )
6647 }
6648 EditorMode::Full => {
6649 let mut style = Style::default();
6650 style.size.width = relative(1.).into();
6651 style.size.height = relative(1.).into();
6652 window.request_layout(style, None, cx)
6653 }
6654 };
6655
6656 (layout_id, ())
6657 })
6658 })
6659 }
6660
6661 fn prepaint(
6662 &mut self,
6663 _: Option<&GlobalElementId>,
6664 bounds: Bounds<Pixels>,
6665 _: &mut Self::RequestLayoutState,
6666 window: &mut Window,
6667 cx: &mut App,
6668 ) -> Self::PrepaintState {
6669 let text_style = TextStyleRefinement {
6670 font_size: Some(self.style.text.font_size),
6671 line_height: Some(self.style.text.line_height),
6672 ..Default::default()
6673 };
6674 let focus_handle = self.editor.focus_handle(cx);
6675 window.set_view_id(self.editor.entity_id());
6676 window.set_focus_handle(&focus_handle, cx);
6677
6678 let rem_size = self.rem_size(cx);
6679 window.with_rem_size(rem_size, |window| {
6680 window.with_text_style(Some(text_style), |window| {
6681 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6682 let mut snapshot = self
6683 .editor
6684 .update(cx, |editor, cx| editor.snapshot(window, cx));
6685 let style = self.style.clone();
6686
6687 let font_id = window.text_system().resolve_font(&style.text.font());
6688 let font_size = style.text.font_size.to_pixels(window.rem_size());
6689 let line_height = style.text.line_height_in_pixels(window.rem_size());
6690 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6691 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6692
6693 let letter_size = size(em_width, line_height);
6694
6695 let gutter_dimensions = snapshot
6696 .gutter_dimensions(
6697 font_id,
6698 font_size,
6699 self.max_line_number_width(&snapshot, window, cx),
6700 cx,
6701 )
6702 .unwrap_or_default();
6703 let text_width = bounds.size.width - gutter_dimensions.width;
6704
6705 let editor_width = text_width - gutter_dimensions.margin - em_width;
6706
6707 snapshot = self.editor.update(cx, |editor, cx| {
6708 editor.last_bounds = Some(bounds);
6709 editor.gutter_dimensions = gutter_dimensions;
6710 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6711
6712 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6713 snapshot
6714 } else {
6715 let wrap_width = match editor.soft_wrap_mode(cx) {
6716 SoftWrap::GitDiff => None,
6717 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6718 SoftWrap::EditorWidth => Some(editor_width),
6719 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6720 SoftWrap::Bounded(column) => {
6721 Some(editor_width.min(column as f32 * em_advance))
6722 }
6723 };
6724
6725 if editor.set_wrap_width(wrap_width, cx) {
6726 editor.snapshot(window, cx)
6727 } else {
6728 snapshot
6729 }
6730 }
6731 });
6732
6733 let wrap_guides = self
6734 .editor
6735 .read(cx)
6736 .wrap_guides(cx)
6737 .iter()
6738 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6739 .collect::<SmallVec<[_; 2]>>();
6740
6741 let hitbox = window.insert_hitbox(bounds, false);
6742 let gutter_hitbox =
6743 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6744 let text_hitbox = window.insert_hitbox(
6745 Bounds {
6746 origin: gutter_hitbox.top_right(),
6747 size: size(text_width, bounds.size.height),
6748 },
6749 false,
6750 );
6751 // Offset the content_bounds from the text_bounds by the gutter margin (which
6752 // is roughly half a character wide) to make hit testing work more like how we want.
6753 let content_origin =
6754 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6755
6756 let scrollbar_bounds =
6757 Bounds::from_corners(content_origin, bounds.bottom_right());
6758
6759 let height_in_lines = scrollbar_bounds.size.height / line_height;
6760
6761 // NOTE: The max row number in the current file, minus one
6762 let max_row = snapshot.max_point().row().as_f32();
6763
6764 // NOTE: The max scroll position for the top of the window
6765 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6766 (max_row - height_in_lines + 1.).max(0.)
6767 } else {
6768 let settings = EditorSettings::get_global(cx);
6769 match settings.scroll_beyond_last_line {
6770 ScrollBeyondLastLine::OnePage => max_row,
6771 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6772 ScrollBeyondLastLine::VerticalScrollMargin => {
6773 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6774 .max(0.)
6775 }
6776 }
6777 };
6778
6779 // TODO: Autoscrolling for both axes
6780 let mut autoscroll_request = None;
6781 let mut autoscroll_containing_element = false;
6782 let mut autoscroll_horizontally = false;
6783 self.editor.update(cx, |editor, cx| {
6784 autoscroll_request = editor.autoscroll_request();
6785 autoscroll_containing_element =
6786 autoscroll_request.is_some() || editor.has_pending_selection();
6787 // TODO: Is this horizontal or vertical?!
6788 autoscroll_horizontally = editor.autoscroll_vertically(
6789 bounds,
6790 line_height,
6791 max_scroll_top,
6792 window,
6793 cx,
6794 );
6795 snapshot = editor.snapshot(window, cx);
6796 });
6797
6798 let mut scroll_position = snapshot.scroll_position();
6799 // The scroll position is a fractional point, the whole number of which represents
6800 // the top of the window in terms of display rows.
6801 let start_row = DisplayRow(scroll_position.y as u32);
6802 let max_row = snapshot.max_point().row();
6803 let end_row = cmp::min(
6804 (scroll_position.y + height_in_lines).ceil() as u32,
6805 max_row.next_row().0,
6806 );
6807 let end_row = DisplayRow(end_row);
6808
6809 let row_infos = snapshot
6810 .row_infos(start_row)
6811 .take((start_row..end_row).len())
6812 .collect::<Vec<RowInfo>>();
6813 let is_row_soft_wrapped = |row: usize| {
6814 row_infos
6815 .get(row)
6816 .map_or(true, |info| info.buffer_row.is_none())
6817 };
6818
6819 let start_anchor = if start_row == Default::default() {
6820 Anchor::min()
6821 } else {
6822 snapshot.buffer_snapshot.anchor_before(
6823 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6824 )
6825 };
6826 let end_anchor = if end_row > max_row {
6827 Anchor::max()
6828 } else {
6829 snapshot.buffer_snapshot.anchor_before(
6830 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6831 )
6832 };
6833
6834 let mut highlighted_rows = self
6835 .editor
6836 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6837
6838 for (ix, row_info) in row_infos.iter().enumerate() {
6839 let color = match row_info.diff_status {
6840 Some(DiffHunkStatus::Added) => style.status.created_background,
6841 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6842 _ => continue,
6843 };
6844 highlighted_rows
6845 .entry(start_row + DisplayRow(ix as u32))
6846 .or_insert(color);
6847 }
6848
6849 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6850 start_anchor..end_anchor,
6851 &snapshot.display_snapshot,
6852 cx.theme().colors(),
6853 );
6854 let highlighted_gutter_ranges =
6855 self.editor.read(cx).gutter_highlights_in_range(
6856 start_anchor..end_anchor,
6857 &snapshot.display_snapshot,
6858 cx,
6859 );
6860
6861 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6862 start_anchor..end_anchor,
6863 &snapshot.display_snapshot,
6864 cx,
6865 );
6866
6867 let (local_selections, selected_buffer_ids): (
6868 Vec<Selection<Point>>,
6869 Vec<BufferId>,
6870 ) = self.editor.update(cx, |editor, cx| {
6871 let all_selections = editor.selections.all::<Point>(cx);
6872 let selected_buffer_ids = if editor.is_singleton(cx) {
6873 Vec::new()
6874 } else {
6875 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6876
6877 for selection in all_selections {
6878 for buffer_id in snapshot
6879 .buffer_snapshot
6880 .buffer_ids_for_range(selection.range())
6881 {
6882 if selected_buffer_ids.last() != Some(&buffer_id) {
6883 selected_buffer_ids.push(buffer_id);
6884 }
6885 }
6886 }
6887
6888 selected_buffer_ids
6889 };
6890
6891 let mut selections = editor
6892 .selections
6893 .disjoint_in_range(start_anchor..end_anchor, cx);
6894 selections.extend(editor.selections.pending(cx));
6895
6896 (selections, selected_buffer_ids)
6897 });
6898
6899 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6900 start_anchor,
6901 end_anchor,
6902 &local_selections,
6903 &snapshot,
6904 start_row,
6905 end_row,
6906 window,
6907 cx,
6908 );
6909
6910 let line_numbers = self.layout_line_numbers(
6911 Some(&gutter_hitbox),
6912 gutter_dimensions,
6913 line_height,
6914 scroll_position,
6915 start_row..end_row,
6916 &row_infos,
6917 newest_selection_head,
6918 &snapshot,
6919 window,
6920 cx,
6921 );
6922
6923 let mut crease_toggles =
6924 window.with_element_namespace("crease_toggles", |window| {
6925 self.layout_crease_toggles(
6926 start_row..end_row,
6927 &row_infos,
6928 &active_rows,
6929 &snapshot,
6930 window,
6931 cx,
6932 )
6933 });
6934 let crease_trailers =
6935 window.with_element_namespace("crease_trailers", |window| {
6936 self.layout_crease_trailers(
6937 row_infos.iter().copied(),
6938 &snapshot,
6939 window,
6940 cx,
6941 )
6942 });
6943
6944 let display_hunks = self.layout_gutter_diff_hunks(
6945 line_height,
6946 &gutter_hitbox,
6947 start_row..end_row,
6948 &snapshot,
6949 window,
6950 cx,
6951 );
6952
6953 let mut line_layouts = Self::layout_lines(
6954 start_row..end_row,
6955 &snapshot,
6956 &self.style,
6957 editor_width,
6958 is_row_soft_wrapped,
6959 window,
6960 cx,
6961 );
6962
6963 let longest_line_blame_width = self
6964 .editor
6965 .update(cx, |editor, cx| {
6966 if !editor.show_git_blame_inline {
6967 return None;
6968 }
6969 let blame = editor.blame.as_ref()?;
6970 let blame_entry = blame
6971 .update(cx, |blame, cx| {
6972 let row_infos =
6973 snapshot.row_infos(snapshot.longest_row()).next()?;
6974 blame.blame_for_rows(&[row_infos], cx).next()
6975 })
6976 .flatten()?;
6977 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
6978 let mut element = render_inline_blame_entry(
6979 blame,
6980 blame_entry,
6981 &style,
6982 workspace,
6983 cx,
6984 );
6985 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6986 Some(
6987 element
6988 .layout_as_root(AvailableSpace::min_size(), window, cx)
6989 .width
6990 + inline_blame_padding,
6991 )
6992 })
6993 .unwrap_or(Pixels::ZERO);
6994
6995 let longest_line_width = layout_line(
6996 snapshot.longest_row(),
6997 &snapshot,
6998 &style,
6999 editor_width,
7000 is_row_soft_wrapped,
7001 window,
7002 cx,
7003 )
7004 .width;
7005
7006 let scrollbar_range_data = ScrollbarRangeData::new(
7007 scrollbar_bounds,
7008 letter_size,
7009 &snapshot,
7010 longest_line_width,
7011 longest_line_blame_width,
7012 &style,
7013 cx,
7014 );
7015
7016 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7017 let mut scroll_width = scroll_range_bounds.size.width;
7018
7019 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7020 snapshot.sticky_header_excerpt(start_row)
7021 } else {
7022 None
7023 };
7024 let sticky_header_excerpt_id =
7025 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7026
7027 let blocks = window.with_element_namespace("blocks", |window| {
7028 self.render_blocks(
7029 start_row..end_row,
7030 &snapshot,
7031 &hitbox,
7032 &text_hitbox,
7033 editor_width,
7034 &mut scroll_width,
7035 &gutter_dimensions,
7036 em_width,
7037 gutter_dimensions.full_width(),
7038 line_height,
7039 &line_layouts,
7040 &local_selections,
7041 &selected_buffer_ids,
7042 is_row_soft_wrapped,
7043 sticky_header_excerpt_id,
7044 window,
7045 cx,
7046 )
7047 });
7048 let mut blocks = match blocks {
7049 Ok(blocks) => blocks,
7050 Err(resized_blocks) => {
7051 self.editor.update(cx, |editor, cx| {
7052 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7053 });
7054 return self.prepaint(None, bounds, &mut (), window, cx);
7055 }
7056 };
7057
7058 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7059 window.with_element_namespace("blocks", |window| {
7060 self.layout_sticky_buffer_header(
7061 sticky_header_excerpt,
7062 scroll_position.y,
7063 line_height,
7064 &snapshot,
7065 &hitbox,
7066 &selected_buffer_ids,
7067 window,
7068 cx,
7069 )
7070 })
7071 });
7072
7073 let start_buffer_row =
7074 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7075 let end_buffer_row =
7076 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7077
7078 let scroll_max = point(
7079 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7080 max_row.as_f32(),
7081 );
7082
7083 self.editor.update(cx, |editor, cx| {
7084 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7085
7086 let autoscrolled = if autoscroll_horizontally {
7087 editor.autoscroll_horizontally(
7088 start_row,
7089 editor_width - (letter_size.width / 2.0),
7090 scroll_width,
7091 em_width,
7092 &line_layouts,
7093 cx,
7094 )
7095 } else {
7096 false
7097 };
7098
7099 if clamped || autoscrolled {
7100 snapshot = editor.snapshot(window, cx);
7101 scroll_position = snapshot.scroll_position();
7102 }
7103 });
7104
7105 let scroll_pixel_position = point(
7106 scroll_position.x * em_width,
7107 scroll_position.y * line_height,
7108 );
7109
7110 let indent_guides = self.layout_indent_guides(
7111 content_origin,
7112 text_hitbox.origin,
7113 start_buffer_row..end_buffer_row,
7114 scroll_pixel_position,
7115 line_height,
7116 &snapshot,
7117 window,
7118 cx,
7119 );
7120
7121 let crease_trailers =
7122 window.with_element_namespace("crease_trailers", |window| {
7123 self.prepaint_crease_trailers(
7124 crease_trailers,
7125 &line_layouts,
7126 line_height,
7127 content_origin,
7128 scroll_pixel_position,
7129 em_width,
7130 window,
7131 cx,
7132 )
7133 });
7134
7135 let mut inline_blame = None;
7136 if let Some(newest_selection_head) = newest_selection_head {
7137 let display_row = newest_selection_head.row();
7138 if (start_row..end_row).contains(&display_row) {
7139 let line_ix = display_row.minus(start_row) as usize;
7140 let row_info = &row_infos[line_ix];
7141 let line_layout = &line_layouts[line_ix];
7142 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7143 inline_blame = self.layout_inline_blame(
7144 display_row,
7145 row_info,
7146 line_layout,
7147 crease_trailer_layout,
7148 em_width,
7149 content_origin,
7150 scroll_pixel_position,
7151 line_height,
7152 window,
7153 cx,
7154 );
7155 }
7156 }
7157
7158 let blamed_display_rows = self.layout_blame_entries(
7159 &row_infos,
7160 em_width,
7161 scroll_position,
7162 line_height,
7163 &gutter_hitbox,
7164 gutter_dimensions.git_blame_entries_width,
7165 window,
7166 cx,
7167 );
7168
7169 let scroll_max = point(
7170 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7171 max_scroll_top,
7172 );
7173
7174 self.editor.update(cx, |editor, cx| {
7175 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7176
7177 let autoscrolled = if autoscroll_horizontally {
7178 editor.autoscroll_horizontally(
7179 start_row,
7180 editor_width - (letter_size.width / 2.0),
7181 scroll_width,
7182 em_width,
7183 &line_layouts,
7184 cx,
7185 )
7186 } else {
7187 false
7188 };
7189
7190 if clamped || autoscrolled {
7191 snapshot = editor.snapshot(window, cx);
7192 scroll_position = snapshot.scroll_position();
7193 }
7194 });
7195
7196 let line_elements = self.prepaint_lines(
7197 start_row,
7198 &mut line_layouts,
7199 line_height,
7200 scroll_pixel_position,
7201 content_origin,
7202 window,
7203 cx,
7204 );
7205
7206 let mut block_start_rows = HashSet::default();
7207
7208 window.with_element_namespace("blocks", |window| {
7209 self.layout_blocks(
7210 &mut blocks,
7211 &mut block_start_rows,
7212 &hitbox,
7213 line_height,
7214 scroll_pixel_position,
7215 window,
7216 cx,
7217 );
7218 });
7219
7220 let cursors = self.collect_cursors(&snapshot, cx);
7221 let visible_row_range = start_row..end_row;
7222 let non_visible_cursors = cursors
7223 .iter()
7224 .any(move |c| !visible_row_range.contains(&c.0.row()));
7225
7226 let visible_cursors = self.layout_visible_cursors(
7227 &snapshot,
7228 &selections,
7229 &block_start_rows,
7230 start_row..end_row,
7231 &line_layouts,
7232 &text_hitbox,
7233 content_origin,
7234 scroll_position,
7235 scroll_pixel_position,
7236 line_height,
7237 em_width,
7238 em_advance,
7239 autoscroll_containing_element,
7240 window,
7241 cx,
7242 );
7243
7244 let scrollbars_layout = self.layout_scrollbars(
7245 &snapshot,
7246 scrollbar_range_data,
7247 scroll_position,
7248 non_visible_cursors,
7249 window,
7250 cx,
7251 );
7252
7253 let gutter_settings = EditorSettings::get_global(cx).gutter;
7254
7255 let rows_with_hunk_bounds = display_hunks
7256 .iter()
7257 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7258 .fold(
7259 HashMap::default(),
7260 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7261 match hunk {
7262 DisplayDiffHunk::Folded { display_row } => {
7263 rows_with_hunk_bounds.insert(*display_row, bounds);
7264 }
7265 DisplayDiffHunk::Unfolded {
7266 display_row_range, ..
7267 } => {
7268 for display_row in display_row_range.iter_rows() {
7269 rows_with_hunk_bounds.insert(display_row, bounds);
7270 }
7271 }
7272 }
7273 rows_with_hunk_bounds
7274 },
7275 );
7276 let mut code_actions_indicator = None;
7277 if let Some(newest_selection_head) = newest_selection_head {
7278 let newest_selection_point =
7279 newest_selection_head.to_point(&snapshot.display_snapshot);
7280
7281 if (start_row..end_row).contains(&newest_selection_head.row()) {
7282 self.layout_cursor_popovers(
7283 line_height,
7284 &text_hitbox,
7285 content_origin,
7286 start_row,
7287 scroll_pixel_position,
7288 &line_layouts,
7289 newest_selection_head,
7290 newest_selection_point,
7291 &style,
7292 window,
7293 cx,
7294 );
7295
7296 let show_code_actions = snapshot
7297 .show_code_actions
7298 .unwrap_or(gutter_settings.code_actions);
7299 if show_code_actions {
7300 let newest_selection_point =
7301 newest_selection_head.to_point(&snapshot.display_snapshot);
7302 if !snapshot
7303 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7304 {
7305 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7306 MultiBufferRow(newest_selection_point.row),
7307 );
7308 if let Some((buffer, range)) = buffer {
7309 let buffer_id = buffer.remote_id();
7310 let row = range.start.row;
7311 let has_test_indicator = self
7312 .editor
7313 .read(cx)
7314 .tasks
7315 .contains_key(&(buffer_id, row));
7316
7317 if !has_test_indicator {
7318 code_actions_indicator = self
7319 .layout_code_actions_indicator(
7320 line_height,
7321 newest_selection_head,
7322 scroll_pixel_position,
7323 &gutter_dimensions,
7324 &gutter_hitbox,
7325 &rows_with_hunk_bounds,
7326 window,
7327 cx,
7328 );
7329 }
7330 }
7331 }
7332 }
7333 }
7334 }
7335
7336 self.layout_gutter_menu(
7337 line_height,
7338 &text_hitbox,
7339 content_origin,
7340 scroll_pixel_position,
7341 gutter_dimensions.width - gutter_dimensions.left_padding,
7342 window,
7343 cx,
7344 );
7345
7346 let test_indicators = if gutter_settings.runnables {
7347 self.layout_run_indicators(
7348 line_height,
7349 start_row..end_row,
7350 scroll_pixel_position,
7351 &gutter_dimensions,
7352 &gutter_hitbox,
7353 &rows_with_hunk_bounds,
7354 &snapshot,
7355 window,
7356 cx,
7357 )
7358 } else {
7359 Vec::new()
7360 };
7361
7362 self.layout_signature_help(
7363 &hitbox,
7364 content_origin,
7365 scroll_pixel_position,
7366 newest_selection_head,
7367 start_row,
7368 &line_layouts,
7369 line_height,
7370 em_width,
7371 window,
7372 cx,
7373 );
7374
7375 if !cx.has_active_drag() {
7376 self.layout_hover_popovers(
7377 &snapshot,
7378 &hitbox,
7379 &text_hitbox,
7380 start_row..end_row,
7381 content_origin,
7382 scroll_pixel_position,
7383 &line_layouts,
7384 line_height,
7385 em_width,
7386 window,
7387 cx,
7388 );
7389 }
7390
7391 let inline_completion_popover = self.layout_inline_completion_popover(
7392 &text_hitbox.bounds,
7393 &snapshot,
7394 start_row..end_row,
7395 scroll_position.y,
7396 scroll_position.y + height_in_lines,
7397 &line_layouts,
7398 line_height,
7399 scroll_pixel_position,
7400 newest_selection_head,
7401 editor_width,
7402 &style,
7403 window,
7404 cx,
7405 );
7406
7407 let mouse_context_menu = self.layout_mouse_context_menu(
7408 &snapshot,
7409 start_row..end_row,
7410 content_origin,
7411 window,
7412 cx,
7413 );
7414
7415 window.with_element_namespace("crease_toggles", |window| {
7416 self.prepaint_crease_toggles(
7417 &mut crease_toggles,
7418 line_height,
7419 &gutter_dimensions,
7420 gutter_settings,
7421 scroll_pixel_position,
7422 &gutter_hitbox,
7423 window,
7424 cx,
7425 )
7426 });
7427
7428 let invisible_symbol_font_size = font_size / 2.;
7429 let tab_invisible = window
7430 .text_system()
7431 .shape_line(
7432 "→".into(),
7433 invisible_symbol_font_size,
7434 &[TextRun {
7435 len: "→".len(),
7436 font: self.style.text.font(),
7437 color: cx.theme().colors().editor_invisible,
7438 background_color: None,
7439 underline: None,
7440 strikethrough: None,
7441 }],
7442 )
7443 .unwrap();
7444 let space_invisible = window
7445 .text_system()
7446 .shape_line(
7447 "•".into(),
7448 invisible_symbol_font_size,
7449 &[TextRun {
7450 len: "•".len(),
7451 font: self.style.text.font(),
7452 color: cx.theme().colors().editor_invisible,
7453 background_color: None,
7454 underline: None,
7455 strikethrough: None,
7456 }],
7457 )
7458 .unwrap();
7459
7460 let mode = snapshot.mode;
7461
7462 let position_map = Rc::new(PositionMap {
7463 size: bounds.size,
7464 scroll_pixel_position,
7465 scroll_max,
7466 line_layouts,
7467 line_height,
7468 em_width,
7469 em_advance,
7470 snapshot,
7471 gutter_hitbox: gutter_hitbox.clone(),
7472 text_hitbox: text_hitbox.clone(),
7473 });
7474
7475 self.editor.update(cx, |editor, _| {
7476 editor.last_position_map = Some(position_map.clone())
7477 });
7478
7479 let hunk_controls = self.layout_diff_hunk_controls(
7480 start_row..end_row,
7481 &row_infos,
7482 &text_hitbox,
7483 &position_map,
7484 newest_selection_head,
7485 line_height,
7486 scroll_pixel_position,
7487 &display_hunks,
7488 self.editor.clone(),
7489 window,
7490 cx,
7491 );
7492
7493 EditorLayout {
7494 mode,
7495 position_map,
7496 visible_display_row_range: start_row..end_row,
7497 wrap_guides,
7498 indent_guides,
7499 hitbox,
7500 gutter_hitbox,
7501 display_hunks,
7502 content_origin,
7503 scrollbars_layout,
7504 active_rows,
7505 highlighted_rows,
7506 highlighted_ranges,
7507 highlighted_gutter_ranges,
7508 redacted_ranges,
7509 line_elements,
7510 line_numbers,
7511 blamed_display_rows,
7512 inline_blame,
7513 blocks,
7514 cursors,
7515 visible_cursors,
7516 selections,
7517 inline_completion_popover,
7518 diff_hunk_controls: hunk_controls,
7519 mouse_context_menu,
7520 test_indicators,
7521 code_actions_indicator,
7522 crease_toggles,
7523 crease_trailers,
7524 tab_invisible,
7525 space_invisible,
7526 sticky_buffer_header,
7527 }
7528 })
7529 })
7530 })
7531 }
7532
7533 fn paint(
7534 &mut self,
7535 _: Option<&GlobalElementId>,
7536 bounds: Bounds<gpui::Pixels>,
7537 _: &mut Self::RequestLayoutState,
7538 layout: &mut Self::PrepaintState,
7539 window: &mut Window,
7540 cx: &mut App,
7541 ) {
7542 let focus_handle = self.editor.focus_handle(cx);
7543 let key_context = self
7544 .editor
7545 .update(cx, |editor, cx| editor.key_context(window, cx));
7546
7547 window.set_key_context(key_context);
7548 window.handle_input(
7549 &focus_handle,
7550 ElementInputHandler::new(bounds, self.editor.clone()),
7551 cx,
7552 );
7553 self.register_actions(window, cx);
7554 self.register_key_listeners(window, cx, layout);
7555
7556 let text_style = TextStyleRefinement {
7557 font_size: Some(self.style.text.font_size),
7558 line_height: Some(self.style.text.line_height),
7559 ..Default::default()
7560 };
7561 let rem_size = self.rem_size(cx);
7562 window.with_rem_size(rem_size, |window| {
7563 window.with_text_style(Some(text_style), |window| {
7564 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7565 self.paint_mouse_listeners(layout, window, cx);
7566 self.paint_background(layout, window, cx);
7567 self.paint_indent_guides(layout, window, cx);
7568
7569 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7570 self.paint_blamed_display_rows(layout, window, cx);
7571 self.paint_line_numbers(layout, window, cx);
7572 }
7573
7574 self.paint_text(layout, window, cx);
7575
7576 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7577 self.paint_gutter_highlights(layout, window, cx);
7578 self.paint_gutter_indicators(layout, window, cx);
7579 }
7580
7581 if !layout.blocks.is_empty() {
7582 window.with_element_namespace("blocks", |window| {
7583 self.paint_blocks(layout, window, cx);
7584 });
7585 }
7586
7587 window.with_element_namespace("blocks", |window| {
7588 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7589 sticky_header.paint(window, cx)
7590 }
7591 });
7592
7593 self.paint_scrollbars(layout, window, cx);
7594 self.paint_inline_completion_popover(layout, window, cx);
7595 self.paint_mouse_context_menu(layout, window, cx);
7596 });
7597 })
7598 })
7599 }
7600}
7601
7602pub(super) fn gutter_bounds(
7603 editor_bounds: Bounds<Pixels>,
7604 gutter_dimensions: GutterDimensions,
7605) -> Bounds<Pixels> {
7606 Bounds {
7607 origin: editor_bounds.origin,
7608 size: size(gutter_dimensions.width, editor_bounds.size.height),
7609 }
7610}
7611
7612struct ScrollbarRangeData {
7613 scrollbar_bounds: Bounds<Pixels>,
7614 scroll_range: Bounds<Pixels>,
7615 letter_size: Size<Pixels>,
7616}
7617
7618impl ScrollbarRangeData {
7619 pub fn new(
7620 scrollbar_bounds: Bounds<Pixels>,
7621 letter_size: Size<Pixels>,
7622 snapshot: &EditorSnapshot,
7623 longest_line_width: Pixels,
7624 longest_line_blame_width: Pixels,
7625 style: &EditorStyle,
7626
7627 cx: &mut App,
7628 ) -> ScrollbarRangeData {
7629 // TODO: Simplify this function down, it requires a lot of parameters
7630 let max_row = snapshot.max_point().row();
7631 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7632
7633 let scrollbar_width = style.scrollbar_width;
7634
7635 let settings = EditorSettings::get_global(cx);
7636 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7637 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7638 ScrollBeyondLastLine::Off => px(1.),
7639 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7640 };
7641
7642 let overscroll = size(
7643 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7644 letter_size.height * scroll_beyond_last_line,
7645 );
7646
7647 let scroll_range = Bounds {
7648 origin: scrollbar_bounds.origin,
7649 size: text_bounds_size + overscroll,
7650 };
7651
7652 ScrollbarRangeData {
7653 scrollbar_bounds,
7654 scroll_range,
7655 letter_size,
7656 }
7657 }
7658}
7659
7660impl IntoElement for EditorElement {
7661 type Element = Self;
7662
7663 fn into_element(self) -> Self::Element {
7664 self
7665 }
7666}
7667
7668pub struct EditorLayout {
7669 position_map: Rc<PositionMap>,
7670 hitbox: Hitbox,
7671 gutter_hitbox: Hitbox,
7672 content_origin: gpui::Point<Pixels>,
7673 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7674 mode: EditorMode,
7675 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7676 indent_guides: Option<Vec<IndentGuideLayout>>,
7677 visible_display_row_range: Range<DisplayRow>,
7678 active_rows: BTreeMap<DisplayRow, bool>,
7679 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7680 line_elements: SmallVec<[AnyElement; 1]>,
7681 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7682 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7683 blamed_display_rows: Option<Vec<AnyElement>>,
7684 inline_blame: Option<AnyElement>,
7685 blocks: Vec<BlockLayout>,
7686 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7687 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7688 redacted_ranges: Vec<Range<DisplayPoint>>,
7689 cursors: Vec<(DisplayPoint, Hsla)>,
7690 visible_cursors: Vec<CursorLayout>,
7691 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7692 code_actions_indicator: Option<AnyElement>,
7693 test_indicators: Vec<AnyElement>,
7694 crease_toggles: Vec<Option<AnyElement>>,
7695 diff_hunk_controls: Vec<AnyElement>,
7696 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7697 inline_completion_popover: Option<AnyElement>,
7698 mouse_context_menu: Option<AnyElement>,
7699 tab_invisible: ShapedLine,
7700 space_invisible: ShapedLine,
7701 sticky_buffer_header: Option<AnyElement>,
7702}
7703
7704impl EditorLayout {
7705 fn line_end_overshoot(&self) -> Pixels {
7706 0.15 * self.position_map.line_height
7707 }
7708}
7709
7710struct LineNumberLayout {
7711 shaped_line: ShapedLine,
7712 hitbox: Option<Hitbox>,
7713 display_row: DisplayRow,
7714}
7715
7716struct ColoredRange<T> {
7717 start: T,
7718 end: T,
7719 color: Hsla,
7720}
7721
7722#[derive(Clone)]
7723struct ScrollbarLayout {
7724 hitbox: Hitbox,
7725 visible_range: Range<f32>,
7726 visible: bool,
7727 text_unit_size: Pixels,
7728 thumb_size: Pixels,
7729 axis: Axis,
7730}
7731
7732impl ScrollbarLayout {
7733 const BORDER_WIDTH: Pixels = px(1.0);
7734 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7735 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7736 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7737
7738 fn thumb_bounds(&self) -> Bounds<Pixels> {
7739 match self.axis {
7740 Axis::Vertical => {
7741 let thumb_top = self.y_for_row(self.visible_range.start);
7742 let thumb_bottom = thumb_top + self.thumb_size;
7743 Bounds::from_corners(
7744 point(self.hitbox.left(), thumb_top),
7745 point(self.hitbox.right(), thumb_bottom),
7746 )
7747 }
7748 Axis::Horizontal => {
7749 let thumb_left =
7750 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7751 let thumb_right = thumb_left + self.thumb_size;
7752 Bounds::from_corners(
7753 point(thumb_left, self.hitbox.top()),
7754 point(thumb_right, self.hitbox.bottom()),
7755 )
7756 }
7757 }
7758 }
7759
7760 fn y_for_row(&self, row: f32) -> Pixels {
7761 self.hitbox.top() + row * self.text_unit_size
7762 }
7763
7764 fn marker_quads_for_ranges(
7765 &self,
7766 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7767 column: Option<usize>,
7768 ) -> Vec<PaintQuad> {
7769 struct MinMax {
7770 min: Pixels,
7771 max: Pixels,
7772 }
7773 let (x_range, height_limit) = if let Some(column) = column {
7774 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7775 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7776 let end = start + column_width;
7777 (
7778 Range { start, end },
7779 MinMax {
7780 min: Self::MIN_MARKER_HEIGHT,
7781 max: px(f32::MAX),
7782 },
7783 )
7784 } else {
7785 (
7786 Range {
7787 start: Self::BORDER_WIDTH,
7788 end: self.hitbox.size.width,
7789 },
7790 MinMax {
7791 min: Self::LINE_MARKER_HEIGHT,
7792 max: Self::LINE_MARKER_HEIGHT,
7793 },
7794 )
7795 };
7796
7797 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7798 let mut pixel_ranges = row_ranges
7799 .into_iter()
7800 .map(|range| {
7801 let start_y = row_to_y(range.start);
7802 let end_y = row_to_y(range.end)
7803 + self
7804 .text_unit_size
7805 .max(height_limit.min)
7806 .min(height_limit.max);
7807 ColoredRange {
7808 start: start_y,
7809 end: end_y,
7810 color: range.color,
7811 }
7812 })
7813 .peekable();
7814
7815 let mut quads = Vec::new();
7816 while let Some(mut pixel_range) = pixel_ranges.next() {
7817 while let Some(next_pixel_range) = pixel_ranges.peek() {
7818 if pixel_range.end >= next_pixel_range.start - px(1.0)
7819 && pixel_range.color == next_pixel_range.color
7820 {
7821 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7822 pixel_ranges.next();
7823 } else {
7824 break;
7825 }
7826 }
7827
7828 let bounds = Bounds::from_corners(
7829 point(x_range.start, pixel_range.start),
7830 point(x_range.end, pixel_range.end),
7831 );
7832 quads.push(quad(
7833 bounds,
7834 Corners::default(),
7835 pixel_range.color,
7836 Edges::default(),
7837 Hsla::transparent_black(),
7838 ));
7839 }
7840
7841 quads
7842 }
7843}
7844
7845struct CreaseTrailerLayout {
7846 element: AnyElement,
7847 bounds: Bounds<Pixels>,
7848}
7849
7850pub(crate) struct PositionMap {
7851 pub size: Size<Pixels>,
7852 pub line_height: Pixels,
7853 pub scroll_pixel_position: gpui::Point<Pixels>,
7854 pub scroll_max: gpui::Point<f32>,
7855 pub em_width: Pixels,
7856 pub em_advance: Pixels,
7857 pub line_layouts: Vec<LineWithInvisibles>,
7858 pub snapshot: EditorSnapshot,
7859 pub text_hitbox: Hitbox,
7860 pub gutter_hitbox: Hitbox,
7861}
7862
7863#[derive(Debug, Copy, Clone)]
7864pub struct PointForPosition {
7865 pub previous_valid: DisplayPoint,
7866 pub next_valid: DisplayPoint,
7867 pub exact_unclipped: DisplayPoint,
7868 pub column_overshoot_after_line_end: u32,
7869}
7870
7871impl PointForPosition {
7872 pub fn as_valid(&self) -> Option<DisplayPoint> {
7873 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7874 Some(self.previous_valid)
7875 } else {
7876 None
7877 }
7878 }
7879}
7880
7881impl PositionMap {
7882 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7883 let text_bounds = self.text_hitbox.bounds;
7884 let scroll_position = self.snapshot.scroll_position();
7885 let position = position - text_bounds.origin;
7886 let y = position.y.max(px(0.)).min(self.size.height);
7887 let x = position.x + (scroll_position.x * self.em_width);
7888 let row = ((y / self.line_height) + scroll_position.y) as u32;
7889
7890 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7891 .line_layouts
7892 .get(row as usize - scroll_position.y as usize)
7893 {
7894 if let Some(ix) = line.index_for_x(x) {
7895 (ix as u32, px(0.))
7896 } else {
7897 (line.len as u32, px(0.).max(x - line.width))
7898 }
7899 } else {
7900 (0, x)
7901 };
7902
7903 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7904 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7905 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7906
7907 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7908 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7909 PointForPosition {
7910 previous_valid,
7911 next_valid,
7912 exact_unclipped,
7913 column_overshoot_after_line_end,
7914 }
7915 }
7916}
7917
7918struct BlockLayout {
7919 id: BlockId,
7920 row: Option<DisplayRow>,
7921 element: AnyElement,
7922 available_space: Size<AvailableSpace>,
7923 style: BlockStyle,
7924}
7925
7926fn layout_line(
7927 row: DisplayRow,
7928 snapshot: &EditorSnapshot,
7929 style: &EditorStyle,
7930 text_width: Pixels,
7931 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7932 window: &mut Window,
7933 cx: &mut App,
7934) -> LineWithInvisibles {
7935 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7936 LineWithInvisibles::from_chunks(
7937 chunks,
7938 &style,
7939 MAX_LINE_LEN,
7940 1,
7941 snapshot.mode,
7942 text_width,
7943 is_row_soft_wrapped,
7944 window,
7945 cx,
7946 )
7947 .pop()
7948 .unwrap()
7949}
7950
7951#[derive(Debug)]
7952pub struct IndentGuideLayout {
7953 origin: gpui::Point<Pixels>,
7954 length: Pixels,
7955 single_indent_width: Pixels,
7956 depth: u32,
7957 active: bool,
7958 settings: IndentGuideSettings,
7959}
7960
7961pub struct CursorLayout {
7962 origin: gpui::Point<Pixels>,
7963 block_width: Pixels,
7964 line_height: Pixels,
7965 color: Hsla,
7966 shape: CursorShape,
7967 block_text: Option<ShapedLine>,
7968 cursor_name: Option<AnyElement>,
7969}
7970
7971#[derive(Debug)]
7972pub struct CursorName {
7973 string: SharedString,
7974 color: Hsla,
7975 is_top_row: bool,
7976}
7977
7978impl CursorLayout {
7979 pub fn new(
7980 origin: gpui::Point<Pixels>,
7981 block_width: Pixels,
7982 line_height: Pixels,
7983 color: Hsla,
7984 shape: CursorShape,
7985 block_text: Option<ShapedLine>,
7986 ) -> CursorLayout {
7987 CursorLayout {
7988 origin,
7989 block_width,
7990 line_height,
7991 color,
7992 shape,
7993 block_text,
7994 cursor_name: None,
7995 }
7996 }
7997
7998 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7999 Bounds {
8000 origin: self.origin + origin,
8001 size: size(self.block_width, self.line_height),
8002 }
8003 }
8004
8005 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8006 match self.shape {
8007 CursorShape::Bar => Bounds {
8008 origin: self.origin + origin,
8009 size: size(px(2.0), self.line_height),
8010 },
8011 CursorShape::Block | CursorShape::Hollow => Bounds {
8012 origin: self.origin + origin,
8013 size: size(self.block_width, self.line_height),
8014 },
8015 CursorShape::Underline => Bounds {
8016 origin: self.origin
8017 + origin
8018 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8019 size: size(self.block_width, px(2.0)),
8020 },
8021 }
8022 }
8023
8024 pub fn layout(
8025 &mut self,
8026 origin: gpui::Point<Pixels>,
8027 cursor_name: Option<CursorName>,
8028 window: &mut Window,
8029 cx: &mut App,
8030 ) {
8031 if let Some(cursor_name) = cursor_name {
8032 let bounds = self.bounds(origin);
8033 let text_size = self.line_height / 1.5;
8034
8035 let name_origin = if cursor_name.is_top_row {
8036 point(bounds.right() - px(1.), bounds.top())
8037 } else {
8038 match self.shape {
8039 CursorShape::Bar => point(
8040 bounds.right() - px(2.),
8041 bounds.top() - text_size / 2. - px(1.),
8042 ),
8043 _ => point(
8044 bounds.right() - px(1.),
8045 bounds.top() - text_size / 2. - px(1.),
8046 ),
8047 }
8048 };
8049 let mut name_element = div()
8050 .bg(self.color)
8051 .text_size(text_size)
8052 .px_0p5()
8053 .line_height(text_size + px(2.))
8054 .text_color(cursor_name.color)
8055 .child(cursor_name.string.clone())
8056 .into_any_element();
8057
8058 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8059
8060 self.cursor_name = Some(name_element);
8061 }
8062 }
8063
8064 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8065 let bounds = self.bounds(origin);
8066
8067 //Draw background or border quad
8068 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8069 outline(bounds, self.color)
8070 } else {
8071 fill(bounds, self.color)
8072 };
8073
8074 if let Some(name) = &mut self.cursor_name {
8075 name.paint(window, cx);
8076 }
8077
8078 window.paint_quad(cursor);
8079
8080 if let Some(block_text) = &self.block_text {
8081 block_text
8082 .paint(self.origin + origin, self.line_height, window, cx)
8083 .log_err();
8084 }
8085 }
8086
8087 pub fn shape(&self) -> CursorShape {
8088 self.shape
8089 }
8090}
8091
8092#[derive(Debug)]
8093pub struct HighlightedRange {
8094 pub start_y: Pixels,
8095 pub line_height: Pixels,
8096 pub lines: Vec<HighlightedRangeLine>,
8097 pub color: Hsla,
8098 pub corner_radius: Pixels,
8099}
8100
8101#[derive(Debug)]
8102pub struct HighlightedRangeLine {
8103 pub start_x: Pixels,
8104 pub end_x: Pixels,
8105}
8106
8107impl HighlightedRange {
8108 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8109 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8110 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8111 self.paint_lines(
8112 self.start_y + self.line_height,
8113 &self.lines[1..],
8114 bounds,
8115 window,
8116 );
8117 } else {
8118 self.paint_lines(self.start_y, &self.lines, bounds, window);
8119 }
8120 }
8121
8122 fn paint_lines(
8123 &self,
8124 start_y: Pixels,
8125 lines: &[HighlightedRangeLine],
8126 _bounds: Bounds<Pixels>,
8127 window: &mut Window,
8128 ) {
8129 if lines.is_empty() {
8130 return;
8131 }
8132
8133 let first_line = lines.first().unwrap();
8134 let last_line = lines.last().unwrap();
8135
8136 let first_top_left = point(first_line.start_x, start_y);
8137 let first_top_right = point(first_line.end_x, start_y);
8138
8139 let curve_height = point(Pixels::ZERO, self.corner_radius);
8140 let curve_width = |start_x: Pixels, end_x: Pixels| {
8141 let max = (end_x - start_x) / 2.;
8142 let width = if max < self.corner_radius {
8143 max
8144 } else {
8145 self.corner_radius
8146 };
8147
8148 point(width, Pixels::ZERO)
8149 };
8150
8151 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8152 let mut path = gpui::Path::new(first_top_right - top_curve_width);
8153 path.curve_to(first_top_right + curve_height, first_top_right);
8154
8155 let mut iter = lines.iter().enumerate().peekable();
8156 while let Some((ix, line)) = iter.next() {
8157 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8158
8159 if let Some((_, next_line)) = iter.peek() {
8160 let next_top_right = point(next_line.end_x, bottom_right.y);
8161
8162 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8163 Ordering::Equal => {
8164 path.line_to(bottom_right);
8165 }
8166 Ordering::Less => {
8167 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8168 path.line_to(bottom_right - curve_height);
8169 if self.corner_radius > Pixels::ZERO {
8170 path.curve_to(bottom_right - curve_width, bottom_right);
8171 }
8172 path.line_to(next_top_right + curve_width);
8173 if self.corner_radius > Pixels::ZERO {
8174 path.curve_to(next_top_right + curve_height, next_top_right);
8175 }
8176 }
8177 Ordering::Greater => {
8178 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8179 path.line_to(bottom_right - curve_height);
8180 if self.corner_radius > Pixels::ZERO {
8181 path.curve_to(bottom_right + curve_width, bottom_right);
8182 }
8183 path.line_to(next_top_right - curve_width);
8184 if self.corner_radius > Pixels::ZERO {
8185 path.curve_to(next_top_right + curve_height, next_top_right);
8186 }
8187 }
8188 }
8189 } else {
8190 let curve_width = curve_width(line.start_x, line.end_x);
8191 path.line_to(bottom_right - curve_height);
8192 if self.corner_radius > Pixels::ZERO {
8193 path.curve_to(bottom_right - curve_width, bottom_right);
8194 }
8195
8196 let bottom_left = point(line.start_x, bottom_right.y);
8197 path.line_to(bottom_left + curve_width);
8198 if self.corner_radius > Pixels::ZERO {
8199 path.curve_to(bottom_left - curve_height, bottom_left);
8200 }
8201 }
8202 }
8203
8204 if first_line.start_x > last_line.start_x {
8205 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8206 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8207 path.line_to(second_top_left + curve_height);
8208 if self.corner_radius > Pixels::ZERO {
8209 path.curve_to(second_top_left + curve_width, second_top_left);
8210 }
8211 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8212 path.line_to(first_bottom_left - curve_width);
8213 if self.corner_radius > Pixels::ZERO {
8214 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
8215 }
8216 }
8217
8218 path.line_to(first_top_left + curve_height);
8219 if self.corner_radius > Pixels::ZERO {
8220 path.curve_to(first_top_left + top_curve_width, first_top_left);
8221 }
8222 path.line_to(first_top_right - top_curve_width);
8223
8224 window.paint_path(path, self.color);
8225 }
8226}
8227
8228enum CursorPopoverType {
8229 CodeContextMenu,
8230 EditPrediction,
8231}
8232
8233pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8234 (delta.pow(1.5) / 100.0).into()
8235}
8236
8237fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8238 (delta.pow(1.2) / 300.0).into()
8239}
8240
8241pub fn register_action<T: Action>(
8242 editor: &Entity<Editor>,
8243 window: &mut Window,
8244 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8245) {
8246 let editor = editor.clone();
8247 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8248 let action = action.downcast_ref().unwrap();
8249 if phase == DispatchPhase::Bubble {
8250 editor.update(cx, |editor, cx| {
8251 listener(editor, action, window, cx);
8252 })
8253 }
8254 })
8255}
8256
8257fn compute_auto_height_layout(
8258 editor: &mut Editor,
8259 max_lines: usize,
8260 max_line_number_width: Pixels,
8261 known_dimensions: Size<Option<Pixels>>,
8262 available_width: AvailableSpace,
8263 window: &mut Window,
8264 cx: &mut Context<Editor>,
8265) -> Option<Size<Pixels>> {
8266 let width = known_dimensions.width.or({
8267 if let AvailableSpace::Definite(available_width) = available_width {
8268 Some(available_width)
8269 } else {
8270 None
8271 }
8272 })?;
8273 if let Some(height) = known_dimensions.height {
8274 return Some(size(width, height));
8275 }
8276
8277 let style = editor.style.as_ref().unwrap();
8278 let font_id = window.text_system().resolve_font(&style.text.font());
8279 let font_size = style.text.font_size.to_pixels(window.rem_size());
8280 let line_height = style.text.line_height_in_pixels(window.rem_size());
8281 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8282
8283 let mut snapshot = editor.snapshot(window, cx);
8284 let gutter_dimensions = snapshot
8285 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8286 .unwrap_or_default();
8287
8288 editor.gutter_dimensions = gutter_dimensions;
8289 let text_width = width - gutter_dimensions.width;
8290 let overscroll = size(em_width, px(0.));
8291
8292 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8293 if editor.set_wrap_width(Some(editor_width), cx) {
8294 snapshot = editor.snapshot(window, cx);
8295 }
8296
8297 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8298 let height = scroll_height
8299 .max(line_height)
8300 .min(line_height * max_lines as f32);
8301
8302 Some(size(width, height))
8303}
8304
8305#[cfg(test)]
8306mod tests {
8307 use super::*;
8308 use crate::{
8309 display_map::{BlockPlacement, BlockProperties},
8310 editor_tests::{init_test, update_test_language_settings},
8311 Editor, MultiBuffer,
8312 };
8313 use gpui::{TestAppContext, VisualTestContext};
8314 use language::language_settings;
8315 use log::info;
8316 use similar::DiffableStr;
8317 use std::num::NonZeroU32;
8318 use util::test::sample_text;
8319
8320 #[gpui::test]
8321 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8322 init_test(cx, |_| {});
8323 let window = cx.add_window(|window, cx| {
8324 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8325 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8326 });
8327
8328 let editor = window.root(cx).unwrap();
8329 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8330 let line_height = window
8331 .update(cx, |_, window, _| {
8332 style.text.line_height_in_pixels(window.rem_size())
8333 })
8334 .unwrap();
8335 let element = EditorElement::new(&editor, style);
8336 let snapshot = window
8337 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8338 .unwrap();
8339
8340 let layouts = cx
8341 .update_window(*window, |_, window, cx| {
8342 element.layout_line_numbers(
8343 None,
8344 GutterDimensions {
8345 left_padding: Pixels::ZERO,
8346 right_padding: Pixels::ZERO,
8347 width: px(30.0),
8348 margin: Pixels::ZERO,
8349 git_blame_entries_width: None,
8350 },
8351 line_height,
8352 gpui::Point::default(),
8353 DisplayRow(0)..DisplayRow(6),
8354 &(0..6)
8355 .map(|row| RowInfo {
8356 buffer_row: Some(row),
8357 ..Default::default()
8358 })
8359 .collect::<Vec<_>>(),
8360 Some(DisplayPoint::new(DisplayRow(0), 0)),
8361 &snapshot,
8362 window,
8363 cx,
8364 )
8365 })
8366 .unwrap();
8367 assert_eq!(layouts.len(), 6);
8368
8369 let relative_rows = window
8370 .update(cx, |editor, window, cx| {
8371 let snapshot = editor.snapshot(window, cx);
8372 element.calculate_relative_line_numbers(
8373 &snapshot,
8374 &(DisplayRow(0)..DisplayRow(6)),
8375 Some(DisplayRow(3)),
8376 )
8377 })
8378 .unwrap();
8379 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8380 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8381 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8382 // current line has no relative number
8383 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8384 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8385
8386 // works if cursor is before screen
8387 let relative_rows = window
8388 .update(cx, |editor, window, cx| {
8389 let snapshot = editor.snapshot(window, cx);
8390 element.calculate_relative_line_numbers(
8391 &snapshot,
8392 &(DisplayRow(3)..DisplayRow(6)),
8393 Some(DisplayRow(1)),
8394 )
8395 })
8396 .unwrap();
8397 assert_eq!(relative_rows.len(), 3);
8398 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8399 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8400 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8401
8402 // works if cursor is after screen
8403 let relative_rows = window
8404 .update(cx, |editor, window, cx| {
8405 let snapshot = editor.snapshot(window, cx);
8406 element.calculate_relative_line_numbers(
8407 &snapshot,
8408 &(DisplayRow(0)..DisplayRow(3)),
8409 Some(DisplayRow(6)),
8410 )
8411 })
8412 .unwrap();
8413 assert_eq!(relative_rows.len(), 3);
8414 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8415 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8416 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8417 }
8418
8419 #[gpui::test]
8420 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8421 init_test(cx, |_| {});
8422
8423 let window = cx.add_window(|window, cx| {
8424 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8425 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8426 });
8427 let cx = &mut VisualTestContext::from_window(*window, cx);
8428 let editor = window.root(cx).unwrap();
8429 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8430
8431 window
8432 .update(cx, |editor, window, cx| {
8433 editor.cursor_shape = CursorShape::Block;
8434 editor.change_selections(None, window, cx, |s| {
8435 s.select_ranges([
8436 Point::new(0, 0)..Point::new(1, 0),
8437 Point::new(3, 2)..Point::new(3, 3),
8438 Point::new(5, 6)..Point::new(6, 0),
8439 ]);
8440 });
8441 })
8442 .unwrap();
8443
8444 let (_, state) = cx.draw(
8445 point(px(500.), px(500.)),
8446 size(px(500.), px(500.)),
8447 |_, _| EditorElement::new(&editor, style),
8448 );
8449
8450 assert_eq!(state.selections.len(), 1);
8451 let local_selections = &state.selections[0].1;
8452 assert_eq!(local_selections.len(), 3);
8453 // moves cursor back one line
8454 assert_eq!(
8455 local_selections[0].head,
8456 DisplayPoint::new(DisplayRow(0), 6)
8457 );
8458 assert_eq!(
8459 local_selections[0].range,
8460 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8461 );
8462
8463 // moves cursor back one column
8464 assert_eq!(
8465 local_selections[1].range,
8466 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8467 );
8468 assert_eq!(
8469 local_selections[1].head,
8470 DisplayPoint::new(DisplayRow(3), 2)
8471 );
8472
8473 // leaves cursor on the max point
8474 assert_eq!(
8475 local_selections[2].range,
8476 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8477 );
8478 assert_eq!(
8479 local_selections[2].head,
8480 DisplayPoint::new(DisplayRow(6), 0)
8481 );
8482
8483 // active lines does not include 1 (even though the range of the selection does)
8484 assert_eq!(
8485 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8486 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8487 );
8488
8489 // multi-buffer support
8490 // in DisplayPoint coordinates, this is what we're dealing with:
8491 // 0: [[file
8492 // 1: header
8493 // 2: section]]
8494 // 3: aaaaaa
8495 // 4: bbbbbb
8496 // 5: cccccc
8497 // 6:
8498 // 7: [[footer]]
8499 // 8: [[header]]
8500 // 9: ffffff
8501 // 10: gggggg
8502 // 11: hhhhhh
8503 // 12:
8504 // 13: [[footer]]
8505 // 14: [[file
8506 // 15: header
8507 // 16: section]]
8508 // 17: bbbbbb
8509 // 18: cccccc
8510 // 19: dddddd
8511 // 20: [[footer]]
8512 let window = cx.add_window(|window, cx| {
8513 let buffer = MultiBuffer::build_multi(
8514 [
8515 (
8516 &(sample_text(8, 6, 'a') + "\n"),
8517 vec![
8518 Point::new(0, 0)..Point::new(3, 0),
8519 Point::new(4, 0)..Point::new(7, 0),
8520 ],
8521 ),
8522 (
8523 &(sample_text(8, 6, 'a') + "\n"),
8524 vec![Point::new(1, 0)..Point::new(3, 0)],
8525 ),
8526 ],
8527 cx,
8528 );
8529 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8530 });
8531 let editor = window.root(cx).unwrap();
8532 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8533 let _state = window.update(cx, |editor, window, cx| {
8534 editor.cursor_shape = CursorShape::Block;
8535 editor.change_selections(None, window, cx, |s| {
8536 s.select_display_ranges([
8537 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8538 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8539 ]);
8540 });
8541 });
8542
8543 let (_, state) = cx.draw(
8544 point(px(500.), px(500.)),
8545 size(px(500.), px(500.)),
8546 |_, _| EditorElement::new(&editor, style),
8547 );
8548 assert_eq!(state.selections.len(), 1);
8549 let local_selections = &state.selections[0].1;
8550 assert_eq!(local_selections.len(), 2);
8551
8552 // moves cursor on excerpt boundary back a line
8553 // and doesn't allow selection to bleed through
8554 assert_eq!(
8555 local_selections[0].range,
8556 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8557 );
8558 assert_eq!(
8559 local_selections[0].head,
8560 DisplayPoint::new(DisplayRow(6), 0)
8561 );
8562 // moves cursor on buffer boundary back two lines
8563 // and doesn't allow selection to bleed through
8564 assert_eq!(
8565 local_selections[1].range,
8566 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8567 );
8568 assert_eq!(
8569 local_selections[1].head,
8570 DisplayPoint::new(DisplayRow(12), 0)
8571 );
8572 }
8573
8574 #[gpui::test]
8575 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8576 init_test(cx, |_| {});
8577
8578 let window = cx.add_window(|window, cx| {
8579 let buffer = MultiBuffer::build_simple("", cx);
8580 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8581 });
8582 let cx = &mut VisualTestContext::from_window(*window, cx);
8583 let editor = window.root(cx).unwrap();
8584 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8585 window
8586 .update(cx, |editor, window, cx| {
8587 editor.set_placeholder_text("hello", cx);
8588 editor.insert_blocks(
8589 [BlockProperties {
8590 style: BlockStyle::Fixed,
8591 placement: BlockPlacement::Above(Anchor::min()),
8592 height: 3,
8593 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8594 priority: 0,
8595 }],
8596 None,
8597 cx,
8598 );
8599
8600 // Blur the editor so that it displays placeholder text.
8601 window.blur();
8602 })
8603 .unwrap();
8604
8605 let (_, state) = cx.draw(
8606 point(px(500.), px(500.)),
8607 size(px(500.), px(500.)),
8608 |_, _| EditorElement::new(&editor, style),
8609 );
8610 assert_eq!(state.position_map.line_layouts.len(), 4);
8611 assert_eq!(state.line_numbers.len(), 1);
8612 assert_eq!(
8613 state
8614 .line_numbers
8615 .get(&MultiBufferRow(0))
8616 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8617 Some("1")
8618 );
8619 }
8620
8621 #[gpui::test]
8622 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8623 const TAB_SIZE: u32 = 4;
8624
8625 let input_text = "\t \t|\t| a b";
8626 let expected_invisibles = vec![
8627 Invisible::Tab {
8628 line_start_offset: 0,
8629 line_end_offset: TAB_SIZE as usize,
8630 },
8631 Invisible::Whitespace {
8632 line_offset: TAB_SIZE as usize,
8633 },
8634 Invisible::Tab {
8635 line_start_offset: TAB_SIZE as usize + 1,
8636 line_end_offset: TAB_SIZE as usize * 2,
8637 },
8638 Invisible::Tab {
8639 line_start_offset: TAB_SIZE as usize * 2 + 1,
8640 line_end_offset: TAB_SIZE as usize * 3,
8641 },
8642 Invisible::Whitespace {
8643 line_offset: TAB_SIZE as usize * 3 + 1,
8644 },
8645 Invisible::Whitespace {
8646 line_offset: TAB_SIZE as usize * 3 + 3,
8647 },
8648 ];
8649 assert_eq!(
8650 expected_invisibles.len(),
8651 input_text
8652 .chars()
8653 .filter(|initial_char| initial_char.is_whitespace())
8654 .count(),
8655 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8656 );
8657
8658 for show_line_numbers in [true, false] {
8659 init_test(cx, |s| {
8660 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8661 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8662 });
8663
8664 let actual_invisibles = collect_invisibles_from_new_editor(
8665 cx,
8666 EditorMode::Full,
8667 input_text,
8668 px(500.0),
8669 show_line_numbers,
8670 );
8671
8672 assert_eq!(expected_invisibles, actual_invisibles);
8673 }
8674 }
8675
8676 #[gpui::test]
8677 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8678 init_test(cx, |s| {
8679 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8680 s.defaults.tab_size = NonZeroU32::new(4);
8681 });
8682
8683 for editor_mode_without_invisibles in [
8684 EditorMode::SingleLine { auto_width: false },
8685 EditorMode::AutoHeight { max_lines: 100 },
8686 ] {
8687 for show_line_numbers in [true, false] {
8688 let invisibles = collect_invisibles_from_new_editor(
8689 cx,
8690 editor_mode_without_invisibles,
8691 "\t\t\t| | a b",
8692 px(500.0),
8693 show_line_numbers,
8694 );
8695 assert!(invisibles.is_empty(),
8696 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8697 }
8698 }
8699 }
8700
8701 #[gpui::test]
8702 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8703 let tab_size = 4;
8704 let input_text = "a\tbcd ".repeat(9);
8705 let repeated_invisibles = [
8706 Invisible::Tab {
8707 line_start_offset: 1,
8708 line_end_offset: tab_size as usize,
8709 },
8710 Invisible::Whitespace {
8711 line_offset: tab_size as usize + 3,
8712 },
8713 Invisible::Whitespace {
8714 line_offset: tab_size as usize + 4,
8715 },
8716 Invisible::Whitespace {
8717 line_offset: tab_size as usize + 5,
8718 },
8719 Invisible::Whitespace {
8720 line_offset: tab_size as usize + 6,
8721 },
8722 Invisible::Whitespace {
8723 line_offset: tab_size as usize + 7,
8724 },
8725 ];
8726 let expected_invisibles = std::iter::once(repeated_invisibles)
8727 .cycle()
8728 .take(9)
8729 .flatten()
8730 .collect::<Vec<_>>();
8731 assert_eq!(
8732 expected_invisibles.len(),
8733 input_text
8734 .chars()
8735 .filter(|initial_char| initial_char.is_whitespace())
8736 .count(),
8737 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8738 );
8739 info!("Expected invisibles: {expected_invisibles:?}");
8740
8741 init_test(cx, |_| {});
8742
8743 // Put the same string with repeating whitespace pattern into editors of various size,
8744 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8745 let resize_step = 10.0;
8746 let mut editor_width = 200.0;
8747 while editor_width <= 1000.0 {
8748 for show_line_numbers in [true, false] {
8749 update_test_language_settings(cx, |s| {
8750 s.defaults.tab_size = NonZeroU32::new(tab_size);
8751 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8752 s.defaults.preferred_line_length = Some(editor_width as u32);
8753 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8754 });
8755
8756 let actual_invisibles = collect_invisibles_from_new_editor(
8757 cx,
8758 EditorMode::Full,
8759 &input_text,
8760 px(editor_width),
8761 show_line_numbers,
8762 );
8763
8764 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8765 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8766 let mut i = 0;
8767 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8768 i = actual_index;
8769 match expected_invisibles.get(i) {
8770 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8771 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8772 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8773 _ => {
8774 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8775 }
8776 },
8777 None => {
8778 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8779 }
8780 }
8781 }
8782 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8783 assert!(
8784 missing_expected_invisibles.is_empty(),
8785 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8786 );
8787
8788 editor_width += resize_step;
8789 }
8790 }
8791 }
8792
8793 fn collect_invisibles_from_new_editor(
8794 cx: &mut TestAppContext,
8795 editor_mode: EditorMode,
8796 input_text: &str,
8797 editor_width: Pixels,
8798 show_line_numbers: bool,
8799 ) -> Vec<Invisible> {
8800 info!(
8801 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8802 editor_width.0
8803 );
8804 let window = cx.add_window(|window, cx| {
8805 let buffer = MultiBuffer::build_simple(input_text, cx);
8806 Editor::new(editor_mode, buffer, None, true, window, cx)
8807 });
8808 let cx = &mut VisualTestContext::from_window(*window, cx);
8809 let editor = window.root(cx).unwrap();
8810
8811 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8812 window
8813 .update(cx, |editor, _, cx| {
8814 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8815 editor.set_wrap_width(Some(editor_width), cx);
8816 editor.set_show_line_numbers(show_line_numbers, cx);
8817 })
8818 .unwrap();
8819 let (_, state) = cx.draw(
8820 point(px(500.), px(500.)),
8821 size(px(500.), px(500.)),
8822 |_, _| EditorElement::new(&editor, style),
8823 );
8824 state
8825 .position_map
8826 .line_layouts
8827 .iter()
8828 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8829 .cloned()
8830 .collect()
8831 }
8832}
8833
8834fn diff_hunk_controls(
8835 row: u32,
8836 hunk_range: Range<Anchor>,
8837 line_height: Pixels,
8838 editor: &Entity<Editor>,
8839 cx: &mut App,
8840) -> AnyElement {
8841 h_flex()
8842 .h(line_height)
8843 .mr_1()
8844 .gap_1()
8845 .px_1()
8846 .pb_1()
8847 .border_b_1()
8848 .border_color(cx.theme().colors().border_variant)
8849 .rounded_b_lg()
8850 .bg(cx.theme().colors().editor_background)
8851 .gap_1()
8852 .child(
8853 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8854 .shape(IconButtonShape::Square)
8855 .icon_size(IconSize::Small)
8856 // .disabled(!has_multiple_hunks)
8857 .tooltip({
8858 let focus_handle = editor.focus_handle(cx);
8859 move |window, cx| {
8860 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8861 }
8862 })
8863 .on_click({
8864 let editor = editor.clone();
8865 move |_event, window, cx| {
8866 editor.update(cx, |editor, cx| {
8867 let snapshot = editor.snapshot(window, cx);
8868 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8869 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8870 editor.expand_selected_diff_hunks(cx);
8871 });
8872 }
8873 }),
8874 )
8875 .child(
8876 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8877 .shape(IconButtonShape::Square)
8878 .icon_size(IconSize::Small)
8879 // .disabled(!has_multiple_hunks)
8880 .tooltip({
8881 let focus_handle = editor.focus_handle(cx);
8882 move |window, cx| {
8883 Tooltip::for_action_in(
8884 "Previous Hunk",
8885 &GoToPrevHunk,
8886 &focus_handle,
8887 window,
8888 cx,
8889 )
8890 }
8891 })
8892 .on_click({
8893 let editor = editor.clone();
8894 move |_event, window, cx| {
8895 editor.update(cx, |editor, cx| {
8896 let snapshot = editor.snapshot(window, cx);
8897 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8898 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8899 editor.expand_selected_diff_hunks(cx);
8900 });
8901 }
8902 }),
8903 )
8904 .child(
8905 IconButton::new("discard", IconName::Undo)
8906 .shape(IconButtonShape::Square)
8907 .icon_size(IconSize::Small)
8908 .tooltip({
8909 let focus_handle = editor.focus_handle(cx);
8910 move |window, cx| {
8911 Tooltip::for_action_in(
8912 "Discard Hunk",
8913 &RevertSelectedHunks,
8914 &focus_handle,
8915 window,
8916 cx,
8917 )
8918 }
8919 })
8920 .on_click({
8921 let editor = editor.clone();
8922 move |_event, window, cx| {
8923 editor.update(cx, |editor, cx| {
8924 let snapshot = editor.snapshot(window, cx);
8925 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8926 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8927 });
8928 }
8929 }),
8930 )
8931 .into_any_element()
8932}