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