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 .child(
2637 h_flex()
2638 .cursor_pointer()
2639 .id("path header block")
2640 .size_full()
2641 .justify_between()
2642 .child(
2643 h_flex()
2644 .gap_2()
2645 .child(
2646 filename
2647 .map(SharedString::from)
2648 .unwrap_or_else(|| "untitled".into()),
2649 )
2650 .when_some(parent_path, |then, path| {
2651 then.child(div().child(path).text_color(colors.text_muted))
2652 }),
2653 )
2654 .when(is_selected, |el| {
2655 el.child(
2656 h_flex()
2657 .id("jump-to-file-button")
2658 .gap_2p5()
2659 .child(Label::new("Jump To File"))
2660 .children(
2661 KeyBinding::for_action_in(
2662 &OpenExcerpts,
2663 &focus_handle,
2664 window,
2665 )
2666 .map(|binding| binding.into_any_element()),
2667 ),
2668 )
2669 })
2670 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2671 .on_click(window.listener_for(&self.editor, {
2672 move |editor, e: &ClickEvent, window, cx| {
2673 editor.open_excerpts_common(
2674 Some(jump_data.clone()),
2675 e.down.modifiers.secondary(),
2676 window,
2677 cx,
2678 );
2679 }
2680 })),
2681 ),
2682 )
2683 }
2684
2685 fn render_expand_excerpt_control(
2686 &self,
2687 block_id: BlockId,
2688 direction: ExpandExcerptDirection,
2689 excerpt_id: ExcerptId,
2690 gutter_dimensions: &GutterDimensions,
2691 window: &Window,
2692 cx: &mut App,
2693 ) -> impl IntoElement {
2694 let color = cx.theme().colors().clone();
2695 let hover_color = color.border_variant.opacity(0.5);
2696 let focus_handle = self.editor.focus_handle(cx).clone();
2697
2698 let icon_offset =
2699 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2700 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2701 let group_name = if direction == ExpandExcerptDirection::Down {
2702 "expand-down"
2703 } else {
2704 "expand-up"
2705 };
2706
2707 let expand_area = |id: SharedString| {
2708 h_flex()
2709 .id(id)
2710 .w_full()
2711 .cursor_pointer()
2712 .block_mouse_down()
2713 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2714 .hover(|style| style.bg(hover_color))
2715 .tooltip({
2716 let focus_handle = focus_handle.clone();
2717 move |window, cx| {
2718 Tooltip::for_action_in(
2719 "Expand Excerpt",
2720 &ExpandExcerpts { lines: 0 },
2721 &focus_handle,
2722 window,
2723 cx,
2724 )
2725 }
2726 })
2727 };
2728
2729 expand_area(
2730 format!(
2731 "block-{}-{}",
2732 block_id,
2733 if direction == ExpandExcerptDirection::Down {
2734 "down"
2735 } else {
2736 "up"
2737 }
2738 )
2739 .into(),
2740 )
2741 .group(group_name)
2742 .child(
2743 h_flex()
2744 .w(icon_offset)
2745 .h(header_height)
2746 .flex_none()
2747 .justify_end()
2748 .child(
2749 ButtonLike::new("expand-icon")
2750 .style(ButtonStyle::Transparent)
2751 .child(
2752 svg()
2753 .path(if direction == ExpandExcerptDirection::Down {
2754 IconName::ArrowDownFromLine.path()
2755 } else {
2756 IconName::ArrowUpFromLine.path()
2757 })
2758 .size(IconSize::XSmall.rems())
2759 .text_color(cx.theme().colors().editor_line_number)
2760 .group_hover(group_name, |style| {
2761 style.text_color(cx.theme().colors().editor_active_line_number)
2762 }),
2763 ),
2764 ),
2765 )
2766 .on_click(window.listener_for(&self.editor, {
2767 move |editor, _, _, cx| {
2768 editor.expand_excerpt(excerpt_id, direction, cx);
2769 cx.stop_propagation();
2770 }
2771 }))
2772 }
2773
2774 #[allow(clippy::too_many_arguments)]
2775 fn render_blocks(
2776 &self,
2777 rows: Range<DisplayRow>,
2778 snapshot: &EditorSnapshot,
2779 hitbox: &Hitbox,
2780 text_hitbox: &Hitbox,
2781 editor_width: Pixels,
2782 scroll_width: &mut Pixels,
2783 gutter_dimensions: &GutterDimensions,
2784 em_width: Pixels,
2785 text_x: Pixels,
2786 line_height: Pixels,
2787 line_layouts: &[LineWithInvisibles],
2788 selections: &[Selection<Point>],
2789 selected_buffer_ids: &Vec<BufferId>,
2790 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2791 sticky_header_excerpt_id: Option<ExcerptId>,
2792 window: &mut Window,
2793 cx: &mut App,
2794 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2795 let (fixed_blocks, non_fixed_blocks) = snapshot
2796 .blocks_in_range(rows.clone())
2797 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2798
2799 let mut focused_block = self
2800 .editor
2801 .update(cx, |editor, _| editor.take_focused_block());
2802 let mut fixed_block_max_width = Pixels::ZERO;
2803 let mut blocks = Vec::new();
2804 let mut resized_blocks = HashMap::default();
2805
2806 for (row, block) in fixed_blocks {
2807 let block_id = block.id();
2808
2809 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2810 focused_block = None;
2811 }
2812
2813 let (element, element_size) = self.render_block(
2814 block,
2815 AvailableSpace::MinContent,
2816 block_id,
2817 row,
2818 snapshot,
2819 text_x,
2820 &rows,
2821 line_layouts,
2822 gutter_dimensions,
2823 line_height,
2824 em_width,
2825 text_hitbox,
2826 editor_width,
2827 scroll_width,
2828 &mut resized_blocks,
2829 selections,
2830 selected_buffer_ids,
2831 is_row_soft_wrapped,
2832 sticky_header_excerpt_id,
2833 window,
2834 cx,
2835 );
2836 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2837 blocks.push(BlockLayout {
2838 id: block_id,
2839 row: Some(row),
2840 element,
2841 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2842 style: BlockStyle::Fixed,
2843 });
2844 }
2845
2846 for (row, block) in non_fixed_blocks {
2847 let style = block.style();
2848 let width = match style {
2849 BlockStyle::Sticky => hitbox.size.width,
2850 BlockStyle::Flex => hitbox
2851 .size
2852 .width
2853 .max(fixed_block_max_width)
2854 .max(gutter_dimensions.width + *scroll_width),
2855 BlockStyle::Fixed => unreachable!(),
2856 };
2857 let block_id = block.id();
2858
2859 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2860 focused_block = None;
2861 }
2862
2863 let (element, element_size) = self.render_block(
2864 block,
2865 width.into(),
2866 block_id,
2867 row,
2868 snapshot,
2869 text_x,
2870 &rows,
2871 line_layouts,
2872 gutter_dimensions,
2873 line_height,
2874 em_width,
2875 text_hitbox,
2876 editor_width,
2877 scroll_width,
2878 &mut resized_blocks,
2879 selections,
2880 selected_buffer_ids,
2881 is_row_soft_wrapped,
2882 sticky_header_excerpt_id,
2883 window,
2884 cx,
2885 );
2886
2887 blocks.push(BlockLayout {
2888 id: block_id,
2889 row: Some(row),
2890 element,
2891 available_space: size(width.into(), element_size.height.into()),
2892 style,
2893 });
2894 }
2895
2896 if let Some(focused_block) = focused_block {
2897 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2898 if focus_handle.is_focused(window) {
2899 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2900 let style = block.style();
2901 let width = match style {
2902 BlockStyle::Fixed => AvailableSpace::MinContent,
2903 BlockStyle::Flex => AvailableSpace::Definite(
2904 hitbox
2905 .size
2906 .width
2907 .max(fixed_block_max_width)
2908 .max(gutter_dimensions.width + *scroll_width),
2909 ),
2910 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2911 };
2912
2913 let (element, element_size) = self.render_block(
2914 &block,
2915 width,
2916 focused_block.id,
2917 rows.end,
2918 snapshot,
2919 text_x,
2920 &rows,
2921 line_layouts,
2922 gutter_dimensions,
2923 line_height,
2924 em_width,
2925 text_hitbox,
2926 editor_width,
2927 scroll_width,
2928 &mut resized_blocks,
2929 selections,
2930 selected_buffer_ids,
2931 is_row_soft_wrapped,
2932 sticky_header_excerpt_id,
2933 window,
2934 cx,
2935 );
2936
2937 blocks.push(BlockLayout {
2938 id: block.id(),
2939 row: None,
2940 element,
2941 available_space: size(width, element_size.height.into()),
2942 style,
2943 });
2944 }
2945 }
2946 }
2947 }
2948
2949 if resized_blocks.is_empty() {
2950 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2951 Ok(blocks)
2952 } else {
2953 Err(resized_blocks)
2954 }
2955 }
2956
2957 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2958 /// a restart of rendering for the editor based on the new sizes.
2959 #[allow(clippy::too_many_arguments)]
2960 fn layout_blocks(
2961 &self,
2962 blocks: &mut Vec<BlockLayout>,
2963 block_starts: &mut HashSet<DisplayRow>,
2964 hitbox: &Hitbox,
2965 line_height: Pixels,
2966 scroll_pixel_position: gpui::Point<Pixels>,
2967 window: &mut Window,
2968 cx: &mut App,
2969 ) {
2970 for block in blocks {
2971 let mut origin = if let Some(row) = block.row {
2972 block_starts.insert(row);
2973 hitbox.origin
2974 + point(
2975 Pixels::ZERO,
2976 row.as_f32() * line_height - scroll_pixel_position.y,
2977 )
2978 } else {
2979 // Position the block outside the visible area
2980 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2981 };
2982
2983 if !matches!(block.style, BlockStyle::Sticky) {
2984 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2985 }
2986
2987 let focus_handle =
2988 block
2989 .element
2990 .prepaint_as_root(origin, block.available_space, window, cx);
2991
2992 if let Some(focus_handle) = focus_handle {
2993 self.editor.update(cx, |editor, _cx| {
2994 editor.set_focused_block(FocusedBlock {
2995 id: block.id,
2996 focus_handle: focus_handle.downgrade(),
2997 });
2998 });
2999 }
3000 }
3001 }
3002
3003 #[allow(clippy::too_many_arguments)]
3004 fn layout_sticky_buffer_header(
3005 &self,
3006 StickyHeaderExcerpt {
3007 excerpt,
3008 next_excerpt_controls_present,
3009 next_buffer_row,
3010 }: StickyHeaderExcerpt<'_>,
3011 scroll_position: f32,
3012 line_height: Pixels,
3013 snapshot: &EditorSnapshot,
3014 hitbox: &Hitbox,
3015 selected_buffer_ids: &Vec<BufferId>,
3016 window: &mut Window,
3017 cx: &mut App,
3018 ) -> AnyElement {
3019 let jump_data = header_jump_data(
3020 snapshot,
3021 DisplayRow(scroll_position as u32),
3022 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3023 excerpt,
3024 );
3025
3026 let editor_bg_color = cx.theme().colors().editor_background;
3027
3028 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3029
3030 let mut header = v_flex()
3031 .relative()
3032 .child(
3033 div()
3034 .w(hitbox.bounds.size.width)
3035 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3036 .bg(linear_gradient(
3037 0.,
3038 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3039 linear_color_stop(editor_bg_color, 0.6),
3040 ))
3041 .absolute()
3042 .top_0(),
3043 )
3044 .child(
3045 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3046 .into_any_element(),
3047 )
3048 .into_any_element();
3049
3050 let mut origin = hitbox.origin;
3051
3052 if let Some(next_buffer_row) = next_buffer_row {
3053 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3054
3055 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3056
3057 if next_excerpt_controls_present {
3058 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3059 }
3060
3061 let offset = scroll_position - max_row as f32;
3062
3063 if offset > 0.0 {
3064 origin.y -= Pixels(offset) * line_height;
3065 }
3066 }
3067
3068 let size = size(
3069 AvailableSpace::Definite(hitbox.size.width),
3070 AvailableSpace::MinContent,
3071 );
3072
3073 header.prepaint_as_root(origin, size, window, cx);
3074
3075 header
3076 }
3077
3078 #[allow(clippy::too_many_arguments)]
3079 fn layout_cursor_popovers(
3080 &self,
3081 line_height: Pixels,
3082 text_hitbox: &Hitbox,
3083 content_origin: gpui::Point<Pixels>,
3084 start_row: DisplayRow,
3085 scroll_pixel_position: gpui::Point<Pixels>,
3086 line_layouts: &[LineWithInvisibles],
3087 cursor: DisplayPoint,
3088 cursor_point: Point,
3089 style: &EditorStyle,
3090 window: &mut Window,
3091 cx: &mut App,
3092 ) {
3093 let mut min_menu_height = Pixels::ZERO;
3094 let mut max_menu_height = Pixels::ZERO;
3095 let mut height_above_menu = Pixels::ZERO;
3096 let height_below_menu = Pixels::ZERO;
3097 let mut edit_prediction_popover_visible = false;
3098 let mut context_menu_visible = false;
3099
3100 {
3101 let editor = self.editor.read(cx);
3102 if editor.has_active_completions_menu() && editor.show_inline_completions_in_menu(cx) {
3103 height_above_menu +=
3104 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3105 edit_prediction_popover_visible = true;
3106 }
3107
3108 if editor.context_menu_visible() {
3109 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3110 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3111 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3112 context_menu_visible = true;
3113 }
3114 }
3115 }
3116
3117 let visible = edit_prediction_popover_visible || context_menu_visible;
3118 if !visible {
3119 return;
3120 }
3121
3122 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3123 let target_position = content_origin
3124 + gpui::Point {
3125 x: cmp::max(
3126 px(0.),
3127 cursor_row_layout.x_for_index(cursor.column() as usize)
3128 - scroll_pixel_position.x,
3129 ),
3130 y: cmp::max(
3131 px(0.),
3132 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3133 ),
3134 };
3135
3136 let viewport_bounds =
3137 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3138 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3139 ..Default::default()
3140 });
3141
3142 let min_height = height_above_menu + min_menu_height + height_below_menu;
3143 let max_height = height_above_menu + max_menu_height + height_below_menu;
3144 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3145 target_position,
3146 line_height,
3147 min_height,
3148 max_height,
3149 text_hitbox,
3150 viewport_bounds,
3151 window,
3152 cx,
3153 |height, max_width_for_stable_x, y_flipped, window, cx| {
3154 // First layout the menu to get its size - others can be at least this wide.
3155 let context_menu = if context_menu_visible {
3156 let menu_height = if y_flipped {
3157 height - height_below_menu
3158 } else {
3159 height - height_above_menu
3160 };
3161 let mut element = self
3162 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3163 .unwrap();
3164 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3165 Some((CursorPopoverType::CodeContextMenu, element, size))
3166 } else {
3167 None
3168 };
3169 let min_width = context_menu
3170 .as_ref()
3171 .map_or(px(0.), |(_, _, size)| size.width);
3172 let max_width = max_width_for_stable_x.max(
3173 context_menu
3174 .as_ref()
3175 .map_or(px(0.), |(_, _, size)| size.width),
3176 );
3177
3178 let edit_prediction = if edit_prediction_popover_visible {
3179 let accept_keystroke: Option<Keystroke>;
3180
3181 // TODO: load modifier from keymap.
3182 // `bindings_for_action_in` returns `None` in Linux, and is intermittent on macOS
3183 #[cfg(target_os = "macos")]
3184 {
3185 // let bindings = window.bindings_for_action_in(
3186 // &crate::AcceptInlineCompletion,
3187 // &self.editor.focus_handle(cx),
3188 // );
3189
3190 // let last_binding = bindings.last();
3191
3192 // accept_keystroke = if let Some(binding) = last_binding {
3193 // match &binding.keystrokes() {
3194 // // TODO: no need to clone once this logic works on linux.
3195 // [keystroke] => Some(keystroke.clone()),
3196 // _ => None,
3197 // }
3198 // } else {
3199 // None
3200 // };
3201 accept_keystroke = Some(Keystroke {
3202 modifiers: gpui::Modifiers {
3203 alt: true,
3204 ..Default::default()
3205 },
3206 key: "tab".to_string(),
3207 key_char: None,
3208 });
3209 }
3210
3211 #[cfg(not(target_os = "macos"))]
3212 {
3213 accept_keystroke = Some(Keystroke {
3214 modifiers: gpui::Modifiers {
3215 alt: true,
3216 ..Default::default()
3217 },
3218 key: "enter".to_string(),
3219 key_char: None,
3220 });
3221 }
3222
3223 self.editor.update(cx, move |editor, cx| {
3224 let mut element = editor.render_edit_prediction_cursor_popover(
3225 min_width,
3226 max_width,
3227 cursor_point,
3228 start_row,
3229 &line_layouts,
3230 style,
3231 accept_keystroke.as_ref()?,
3232 window,
3233 cx,
3234 )?;
3235 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3236 Some((CursorPopoverType::EditPrediction, element, size))
3237 })
3238 } else {
3239 None
3240 };
3241 vec![edit_prediction, context_menu]
3242 .into_iter()
3243 .flatten()
3244 .collect::<Vec<_>>()
3245 },
3246 ) else {
3247 return;
3248 };
3249
3250 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3251 .iter()
3252 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3253 else {
3254 return;
3255 };
3256 let last_ix = laid_out_popovers.len() - 1;
3257 let menu_is_last = menu_ix == last_ix;
3258 let first_popover_bounds = laid_out_popovers[0].1;
3259 let last_popover_bounds = laid_out_popovers[last_ix].1;
3260
3261 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3262 // right, and otherwise it goes below or to the right.
3263 let mut target_bounds = Bounds::from_corners(
3264 first_popover_bounds.origin,
3265 last_popover_bounds.bottom_right(),
3266 );
3267 target_bounds.size.width = menu_bounds.size.width;
3268
3269 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3270 // based on this is preferred for layout stability.
3271 let mut max_target_bounds = target_bounds;
3272 max_target_bounds.size.height = max_height;
3273 if y_flipped {
3274 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3275 }
3276
3277 // Add spacing around `target_bounds` and `max_target_bounds`.
3278 let mut extend_amount = Edges::all(MENU_GAP);
3279 if y_flipped {
3280 extend_amount.bottom = line_height;
3281 } else {
3282 extend_amount.top = line_height;
3283 }
3284 let target_bounds = target_bounds.extend(extend_amount);
3285 let max_target_bounds = max_target_bounds.extend(extend_amount);
3286
3287 let must_place_above_or_below =
3288 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3289 laid_out_popovers[menu_ix + 1..]
3290 .iter()
3291 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3292 } else {
3293 false
3294 };
3295
3296 self.layout_context_menu_aside(
3297 y_flipped,
3298 *menu_bounds,
3299 target_bounds,
3300 max_target_bounds,
3301 max_menu_height,
3302 must_place_above_or_below,
3303 text_hitbox,
3304 viewport_bounds,
3305 window,
3306 cx,
3307 );
3308 }
3309
3310 #[allow(clippy::too_many_arguments)]
3311 fn layout_gutter_menu(
3312 &self,
3313 line_height: Pixels,
3314 text_hitbox: &Hitbox,
3315 content_origin: gpui::Point<Pixels>,
3316 scroll_pixel_position: gpui::Point<Pixels>,
3317 gutter_overshoot: Pixels,
3318 window: &mut Window,
3319 cx: &mut App,
3320 ) {
3321 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3322 self.editor.read(cx).context_menu_origin()
3323 else {
3324 return;
3325 };
3326 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3327 // indicator than just a plain first column of the text field.
3328 let target_position = content_origin
3329 + gpui::Point {
3330 x: -gutter_overshoot,
3331 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3332 };
3333 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3334 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3335 let viewport_bounds =
3336 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3337 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3338 ..Default::default()
3339 });
3340 self.layout_popovers_above_or_below_line(
3341 target_position,
3342 line_height,
3343 min_height,
3344 max_height,
3345 text_hitbox,
3346 viewport_bounds,
3347 window,
3348 cx,
3349 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3350 let Some(mut element) =
3351 self.render_context_menu(line_height, height, y_flipped, window, cx)
3352 else {
3353 return vec![];
3354 };
3355 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3356 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3357 },
3358 );
3359 }
3360
3361 #[allow(clippy::too_many_arguments)]
3362 fn layout_popovers_above_or_below_line(
3363 &self,
3364 target_position: gpui::Point<Pixels>,
3365 line_height: Pixels,
3366 min_height: Pixels,
3367 max_height: Pixels,
3368 text_hitbox: &Hitbox,
3369 viewport_bounds: Bounds<Pixels>,
3370 window: &mut Window,
3371 cx: &mut App,
3372 make_sized_popovers: impl FnOnce(
3373 Pixels,
3374 Pixels,
3375 bool,
3376 &mut Window,
3377 &mut App,
3378 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3379 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3380 // If the max height won't fit below and there is more space above, put it above the line.
3381 let bottom_y_when_flipped = target_position.y - line_height;
3382 let available_above = bottom_y_when_flipped - text_hitbox.top();
3383 let available_below = text_hitbox.bottom() - target_position.y;
3384 let y_overflows_below = max_height > available_below;
3385 let mut y_flipped = y_overflows_below && available_above > available_below;
3386 let mut height = cmp::min(
3387 max_height,
3388 if y_flipped {
3389 available_above
3390 } else {
3391 available_below
3392 },
3393 );
3394
3395 // If the min height doesn't fit within text bounds, instead fit within the window.
3396 if height < min_height {
3397 let available_above = bottom_y_when_flipped;
3398 let available_below = viewport_bounds.bottom() - target_position.y;
3399 if available_below > min_height {
3400 y_flipped = false;
3401 height = min_height;
3402 } else if available_above > min_height {
3403 y_flipped = true;
3404 height = min_height;
3405 } else if available_above > available_below {
3406 y_flipped = true;
3407 height = available_above;
3408 } else {
3409 y_flipped = false;
3410 height = available_below;
3411 }
3412 }
3413
3414 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3415
3416 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3417 // for very narrow windows.
3418 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3419 if popovers.is_empty() {
3420 return None;
3421 }
3422
3423 let max_width = popovers
3424 .iter()
3425 .map(|(_, _, size)| size.width)
3426 .max()
3427 .unwrap_or_default();
3428
3429 let mut current_position = gpui::Point {
3430 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3431 // overflow. Include space for the scrollbar.
3432 x: target_position
3433 .x
3434 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3435 y: if y_flipped {
3436 bottom_y_when_flipped
3437 } else {
3438 target_position.y
3439 },
3440 };
3441
3442 let mut laid_out_popovers = popovers
3443 .into_iter()
3444 .map(|(popover_type, element, size)| {
3445 if y_flipped {
3446 current_position.y -= size.height;
3447 }
3448 let position = current_position;
3449 window.defer_draw(element, current_position, 1);
3450 if !y_flipped {
3451 current_position.y += size.height + MENU_GAP;
3452 } else {
3453 current_position.y -= MENU_GAP;
3454 }
3455 (popover_type, Bounds::new(position, size))
3456 })
3457 .collect::<Vec<_>>();
3458
3459 if y_flipped {
3460 laid_out_popovers.reverse();
3461 }
3462
3463 Some((laid_out_popovers, y_flipped))
3464 }
3465
3466 #[allow(clippy::too_many_arguments)]
3467 fn layout_context_menu_aside(
3468 &self,
3469 y_flipped: bool,
3470 menu_bounds: Bounds<Pixels>,
3471 target_bounds: Bounds<Pixels>,
3472 max_target_bounds: Bounds<Pixels>,
3473 max_height: Pixels,
3474 must_place_above_or_below: bool,
3475 text_hitbox: &Hitbox,
3476 viewport_bounds: Bounds<Pixels>,
3477 window: &mut Window,
3478 cx: &mut App,
3479 ) {
3480 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3481 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3482 && !must_place_above_or_below
3483 {
3484 let max_width = cmp::min(
3485 available_within_viewport.right - px(1.),
3486 MENU_ASIDE_MAX_WIDTH,
3487 );
3488 let Some(mut aside) =
3489 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3490 else {
3491 return;
3492 };
3493 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3494 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3495 Some((aside, right_position))
3496 } else {
3497 let max_size = size(
3498 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3499 // won't be needed here.
3500 cmp::min(
3501 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3502 viewport_bounds.right(),
3503 ),
3504 cmp::min(
3505 max_height,
3506 cmp::max(
3507 available_within_viewport.top,
3508 available_within_viewport.bottom,
3509 ),
3510 ) - POPOVER_Y_PADDING,
3511 );
3512 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3513 return;
3514 };
3515 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3516
3517 let top_position = point(
3518 menu_bounds.origin.x,
3519 target_bounds.top() - actual_size.height,
3520 );
3521 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3522
3523 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3524 // Prefer to fit on the same side of the line as the menu, then on the other side of
3525 // the line.
3526 if !y_flipped && wanted.height < available.bottom {
3527 Some(bottom_position)
3528 } else if !y_flipped && wanted.height < available.top {
3529 Some(top_position)
3530 } else if y_flipped && wanted.height < available.top {
3531 Some(top_position)
3532 } else if y_flipped && wanted.height < available.bottom {
3533 Some(bottom_position)
3534 } else {
3535 None
3536 }
3537 };
3538
3539 // Prefer choosing a direction using max sizes rather than actual size for stability.
3540 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3541 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3542 let aside_position = fit_within(available_within_text, wanted)
3543 // Fallback: fit max size in window.
3544 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3545 // Fallback: fit actual size in window.
3546 .or_else(|| fit_within(available_within_viewport, actual_size));
3547
3548 aside_position.map(|position| (aside, position))
3549 };
3550
3551 // Skip drawing if it doesn't fit anywhere.
3552 if let Some((aside, position)) = positioned_aside {
3553 window.defer_draw(aside, position, 1);
3554 }
3555 }
3556
3557 fn render_context_menu(
3558 &self,
3559 line_height: Pixels,
3560 height: Pixels,
3561 y_flipped: bool,
3562 window: &mut Window,
3563 cx: &mut App,
3564 ) -> Option<AnyElement> {
3565 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3566 self.editor.update(cx, |editor, cx| {
3567 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3568 })
3569 }
3570
3571 fn render_context_menu_aside(
3572 &self,
3573 max_size: Size<Pixels>,
3574
3575 cx: &mut App,
3576 ) -> Option<AnyElement> {
3577 if max_size.width < px(100.) || max_size.height < px(12.) {
3578 None
3579 } else {
3580 self.editor.update(cx, |editor, cx| {
3581 editor.render_context_menu_aside(&self.style, max_size, cx)
3582 })
3583 }
3584 }
3585
3586 #[allow(clippy::too_many_arguments)]
3587 fn layout_inline_completion_popover(
3588 &self,
3589 text_bounds: &Bounds<Pixels>,
3590 editor_snapshot: &EditorSnapshot,
3591 visible_row_range: Range<DisplayRow>,
3592 scroll_top: f32,
3593 scroll_bottom: f32,
3594 line_layouts: &[LineWithInvisibles],
3595 line_height: Pixels,
3596 scroll_pixel_position: gpui::Point<Pixels>,
3597 newest_selection_head: Option<DisplayPoint>,
3598 editor_width: Pixels,
3599 style: &EditorStyle,
3600 window: &mut Window,
3601 cx: &mut App,
3602 ) -> Option<AnyElement> {
3603 const PADDING_X: Pixels = Pixels(24.);
3604 const PADDING_Y: Pixels = Pixels(2.);
3605
3606 let active_inline_completion = self.editor.read(cx).active_inline_completion.as_ref()?;
3607
3608 match &active_inline_completion.completion {
3609 InlineCompletion::Move { target, .. } => {
3610 let previewing = false;
3611 let target_display_point = target.to_display_point(editor_snapshot);
3612 if target_display_point.row().as_f32() < scroll_top {
3613 let mut element = inline_completion_accept_indicator(
3614 "Jump to Edit",
3615 Some(IconName::ArrowUp),
3616 previewing,
3617 self.editor.focus_handle(cx),
3618 window,
3619 cx,
3620 );
3621 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3622 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3623 element.prepaint_at(text_bounds.origin + offset, window, cx);
3624 Some(element)
3625 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3626 let mut element = inline_completion_accept_indicator(
3627 "Jump to Edit",
3628 Some(IconName::ArrowDown),
3629 previewing,
3630 self.editor.focus_handle(cx),
3631 window,
3632 cx,
3633 );
3634 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3635 let offset = point(
3636 (text_bounds.size.width - size.width) / 2.,
3637 text_bounds.size.height - size.height - PADDING_Y,
3638 );
3639 element.prepaint_at(text_bounds.origin + offset, window, cx);
3640 Some(element)
3641 } else {
3642 let mut element = inline_completion_accept_indicator(
3643 "Jump to Edit",
3644 None,
3645 previewing,
3646 self.editor.focus_handle(cx),
3647 window,
3648 cx,
3649 );
3650
3651 let target_line_end = DisplayPoint::new(
3652 target_display_point.row(),
3653 editor_snapshot.line_len(target_display_point.row()),
3654 );
3655 let origin = self.editor.update(cx, |editor, _cx| {
3656 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3657 })?;
3658 element.prepaint_as_root(
3659 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3660 AvailableSpace::min_size(),
3661 window,
3662 cx,
3663 );
3664 Some(element)
3665 }
3666 }
3667 InlineCompletion::Edit {
3668 edits,
3669 edit_preview,
3670 display_mode,
3671 snapshot,
3672 } => {
3673 if self.editor.read(cx).has_active_completions_menu() {
3674 return None;
3675 }
3676
3677 let edit_start = edits
3678 .first()
3679 .unwrap()
3680 .0
3681 .start
3682 .to_display_point(editor_snapshot);
3683 let edit_end = edits
3684 .last()
3685 .unwrap()
3686 .0
3687 .end
3688 .to_display_point(editor_snapshot);
3689
3690 let is_visible = visible_row_range.contains(&edit_start.row())
3691 || visible_row_range.contains(&edit_end.row());
3692 if !is_visible {
3693 return None;
3694 }
3695
3696 match display_mode {
3697 EditDisplayMode::TabAccept(previewing) => {
3698 let previewing = *previewing;
3699 let range = &edits.first()?.0;
3700 let target_display_point = range.end.to_display_point(editor_snapshot);
3701
3702 let target_line_end = DisplayPoint::new(
3703 target_display_point.row(),
3704 editor_snapshot.line_len(target_display_point.row()),
3705 );
3706 let origin = self.editor.update(cx, |editor, _cx| {
3707 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3708 })?;
3709
3710 let mut element = inline_completion_accept_indicator(
3711 "Accept",
3712 None,
3713 previewing,
3714 self.editor.focus_handle(cx),
3715 window,
3716 cx,
3717 );
3718
3719 element.prepaint_as_root(
3720 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3721 AvailableSpace::min_size(),
3722 window,
3723 cx,
3724 );
3725
3726 return Some(element);
3727 }
3728 EditDisplayMode::Inline => return None,
3729 EditDisplayMode::DiffPopover => {}
3730 }
3731
3732 let highlighted_edits = crate::inline_completion_edit_text(
3733 &snapshot,
3734 edits,
3735 edit_preview.as_ref()?,
3736 false,
3737 cx,
3738 );
3739
3740 let line_count = highlighted_edits.text.lines().count();
3741
3742 let longest_row =
3743 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3744 let longest_line_width = if visible_row_range.contains(&longest_row) {
3745 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3746 } else {
3747 layout_line(
3748 longest_row,
3749 editor_snapshot,
3750 style,
3751 editor_width,
3752 |_| false,
3753 window,
3754 cx,
3755 )
3756 .width
3757 };
3758
3759 let styled_text = highlighted_edits.to_styled_text(&style.text);
3760
3761 let mut element = div()
3762 .bg(cx.theme().colors().editor_background)
3763 .border_1()
3764 .border_color(cx.theme().colors().border)
3765 .rounded_md()
3766 .child(styled_text)
3767 .into_any();
3768
3769 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3770 .extend(Edges {
3771 right: -Self::SCROLLBAR_WIDTH,
3772 ..Default::default()
3773 });
3774
3775 let x_after_longest =
3776 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3777
3778 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3779
3780 // Fully visible if it can be displayed within the window (allow overlapping other
3781 // panes). However, this is only allowed if the popover starts within text_bounds.
3782 let is_fully_visible = x_after_longest < text_bounds.right()
3783 && x_after_longest + element_bounds.width < viewport_bounds.right();
3784
3785 let origin = if is_fully_visible {
3786 point(
3787 x_after_longest,
3788 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3789 - scroll_pixel_position.y,
3790 )
3791 } else {
3792 // Avoid overlapping both the edited rows and the user's cursor.
3793 let target_above = DisplayRow(
3794 edit_start
3795 .row()
3796 .0
3797 .min(
3798 newest_selection_head
3799 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3800 )
3801 .saturating_sub(line_count as u32),
3802 );
3803 let mut row_target;
3804 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3805 row_target = target_above;
3806 } else {
3807 row_target = DisplayRow(
3808 edit_end.row().0.max(
3809 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3810 ) + 1,
3811 );
3812 if !visible_row_range.contains(&row_target) {
3813 // Not visible, so fallback on displaying immediately below the cursor.
3814 if let Some(cursor) = newest_selection_head {
3815 row_target = DisplayRow(cursor.row().0 + 1);
3816 } else {
3817 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3818 row_target = DisplayRow(0);
3819 }
3820 }
3821 };
3822
3823 text_bounds.origin
3824 + point(
3825 -scroll_pixel_position.x,
3826 row_target.as_f32() * line_height - scroll_pixel_position.y,
3827 )
3828 };
3829
3830 window.defer_draw(element, origin, 1);
3831
3832 // Do not return an element, since it will already be drawn due to defer_draw.
3833 None
3834 }
3835 }
3836 }
3837
3838 fn layout_mouse_context_menu(
3839 &self,
3840 editor_snapshot: &EditorSnapshot,
3841 visible_range: Range<DisplayRow>,
3842 content_origin: gpui::Point<Pixels>,
3843 window: &mut Window,
3844 cx: &mut App,
3845 ) -> Option<AnyElement> {
3846 let position = self.editor.update(cx, |editor, _cx| {
3847 let visible_start_point = editor.display_to_pixel_point(
3848 DisplayPoint::new(visible_range.start, 0),
3849 editor_snapshot,
3850 window,
3851 )?;
3852 let visible_end_point = editor.display_to_pixel_point(
3853 DisplayPoint::new(visible_range.end, 0),
3854 editor_snapshot,
3855 window,
3856 )?;
3857
3858 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3859 let (source_display_point, position) = match mouse_context_menu.position {
3860 MenuPosition::PinnedToScreen(point) => (None, point),
3861 MenuPosition::PinnedToEditor { source, offset } => {
3862 let source_display_point = source.to_display_point(editor_snapshot);
3863 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3864 let position = content_origin + source_point + offset;
3865 (Some(source_display_point), position)
3866 }
3867 };
3868
3869 let source_included = source_display_point.map_or(true, |source_display_point| {
3870 visible_range
3871 .to_inclusive()
3872 .contains(&source_display_point.row())
3873 });
3874 let position_included =
3875 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3876 if !source_included && !position_included {
3877 None
3878 } else {
3879 Some(position)
3880 }
3881 })?;
3882
3883 let mut element = self.editor.update(cx, |editor, _| {
3884 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3885 let context_menu = mouse_context_menu.context_menu.clone();
3886
3887 Some(
3888 deferred(
3889 anchored()
3890 .position(position)
3891 .child(context_menu)
3892 .anchor(Corner::TopLeft)
3893 .snap_to_window_with_margin(px(8.)),
3894 )
3895 .with_priority(1)
3896 .into_any(),
3897 )
3898 })?;
3899
3900 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3901 Some(element)
3902 }
3903
3904 #[allow(clippy::too_many_arguments)]
3905 fn layout_hover_popovers(
3906 &self,
3907 snapshot: &EditorSnapshot,
3908 hitbox: &Hitbox,
3909 text_hitbox: &Hitbox,
3910 visible_display_row_range: Range<DisplayRow>,
3911 content_origin: gpui::Point<Pixels>,
3912 scroll_pixel_position: gpui::Point<Pixels>,
3913 line_layouts: &[LineWithInvisibles],
3914 line_height: Pixels,
3915 em_width: Pixels,
3916 window: &mut Window,
3917 cx: &mut App,
3918 ) {
3919 struct MeasuredHoverPopover {
3920 element: AnyElement,
3921 size: Size<Pixels>,
3922 horizontal_offset: Pixels,
3923 }
3924
3925 let max_size = size(
3926 (120. * em_width) // Default size
3927 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3928 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3929 (16. * line_height) // Default size
3930 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3931 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3932 );
3933
3934 let hover_popovers = self.editor.update(cx, |editor, cx| {
3935 editor
3936 .hover_state
3937 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3938 });
3939 let Some((position, hover_popovers)) = hover_popovers else {
3940 return;
3941 };
3942
3943 // This is safe because we check on layout whether the required row is available
3944 let hovered_row_layout =
3945 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3946
3947 // Compute Hovered Point
3948 let x =
3949 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3950 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3951 let hovered_point = content_origin + point(x, y);
3952
3953 let mut overall_height = Pixels::ZERO;
3954 let mut measured_hover_popovers = Vec::new();
3955 for mut hover_popover in hover_popovers {
3956 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3957 let horizontal_offset =
3958 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3959
3960 overall_height += HOVER_POPOVER_GAP + size.height;
3961
3962 measured_hover_popovers.push(MeasuredHoverPopover {
3963 element: hover_popover,
3964 size,
3965 horizontal_offset,
3966 });
3967 }
3968 overall_height += HOVER_POPOVER_GAP;
3969
3970 fn draw_occluder(
3971 width: Pixels,
3972 origin: gpui::Point<Pixels>,
3973 window: &mut Window,
3974 cx: &mut App,
3975 ) {
3976 let mut occlusion = div()
3977 .size_full()
3978 .occlude()
3979 .on_mouse_move(|_, _, cx| cx.stop_propagation())
3980 .into_any_element();
3981 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
3982 window.defer_draw(occlusion, origin, 2);
3983 }
3984
3985 if hovered_point.y > overall_height {
3986 // There is enough space above. Render popovers above the hovered point
3987 let mut current_y = hovered_point.y;
3988 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
3989 let size = popover.size;
3990 let popover_origin = point(
3991 hovered_point.x + popover.horizontal_offset,
3992 current_y - size.height,
3993 );
3994
3995 window.defer_draw(popover.element, popover_origin, 2);
3996 if position != itertools::Position::Last {
3997 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
3998 draw_occluder(size.width, origin, window, cx);
3999 }
4000
4001 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4002 }
4003 } else {
4004 // There is not enough space above. Render popovers below the hovered point
4005 let mut current_y = hovered_point.y + line_height;
4006 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4007 let size = popover.size;
4008 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4009
4010 window.defer_draw(popover.element, popover_origin, 2);
4011 if position != itertools::Position::Last {
4012 let origin = point(popover_origin.x, popover_origin.y + size.height);
4013 draw_occluder(size.width, origin, window, cx);
4014 }
4015
4016 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4017 }
4018 }
4019 }
4020
4021 #[allow(clippy::too_many_arguments)]
4022 fn layout_diff_hunk_controls(
4023 &self,
4024 row_range: Range<DisplayRow>,
4025 row_infos: &[RowInfo],
4026 text_hitbox: &Hitbox,
4027 position_map: &PositionMap,
4028 newest_cursor_position: Option<DisplayPoint>,
4029 line_height: Pixels,
4030 scroll_pixel_position: gpui::Point<Pixels>,
4031 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4032 editor: Entity<Editor>,
4033 window: &mut Window,
4034 cx: &mut App,
4035 ) -> Vec<AnyElement> {
4036 let point_for_position = position_map.point_for_position(window.mouse_position());
4037
4038 let mut controls = vec![];
4039
4040 let active_positions = [
4041 Some(point_for_position.previous_valid),
4042 newest_cursor_position,
4043 ];
4044
4045 for (hunk, _) in display_hunks {
4046 if let DisplayDiffHunk::Unfolded {
4047 display_row_range,
4048 multi_buffer_range,
4049 status,
4050 ..
4051 } = &hunk
4052 {
4053 if display_row_range.start < row_range.start
4054 || display_row_range.start >= row_range.end
4055 {
4056 continue;
4057 }
4058 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4059 if row_infos[row_ix].diff_status.is_none() {
4060 continue;
4061 }
4062 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4063 && *status != DiffHunkStatus::Added
4064 {
4065 continue;
4066 }
4067 if active_positions
4068 .iter()
4069 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4070 {
4071 let y = display_row_range.start.as_f32() * line_height
4072 + text_hitbox.bounds.top()
4073 - scroll_pixel_position.y;
4074 let x = text_hitbox.bounds.right() - px(100.);
4075
4076 let mut element = diff_hunk_controls(
4077 display_row_range.start.0,
4078 multi_buffer_range.clone(),
4079 line_height,
4080 &editor,
4081 cx,
4082 );
4083 element.prepaint_as_root(
4084 gpui::Point::new(x, y),
4085 size(px(100.0), line_height).into(),
4086 window,
4087 cx,
4088 );
4089 controls.push(element);
4090 }
4091 }
4092 }
4093
4094 controls
4095 }
4096
4097 #[allow(clippy::too_many_arguments)]
4098 fn layout_signature_help(
4099 &self,
4100 hitbox: &Hitbox,
4101 content_origin: gpui::Point<Pixels>,
4102 scroll_pixel_position: gpui::Point<Pixels>,
4103 newest_selection_head: Option<DisplayPoint>,
4104 start_row: DisplayRow,
4105 line_layouts: &[LineWithInvisibles],
4106 line_height: Pixels,
4107 em_width: Pixels,
4108 window: &mut Window,
4109 cx: &mut App,
4110 ) {
4111 if !self.editor.focus_handle(cx).is_focused(window) {
4112 return;
4113 }
4114 let Some(newest_selection_head) = newest_selection_head else {
4115 return;
4116 };
4117 let selection_row = newest_selection_head.row();
4118 if selection_row < start_row {
4119 return;
4120 }
4121 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4122 else {
4123 return;
4124 };
4125
4126 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4127 - scroll_pixel_position.x
4128 + content_origin.x;
4129 let start_y =
4130 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4131
4132 let max_size = size(
4133 (120. * em_width) // Default size
4134 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4135 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4136 (16. * line_height) // Default size
4137 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4138 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4139 );
4140
4141 let maybe_element = self.editor.update(cx, |editor, cx| {
4142 if let Some(popover) = editor.signature_help_state.popover_mut() {
4143 let element = popover.render(
4144 &self.style,
4145 max_size,
4146 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4147 cx,
4148 );
4149 Some(element)
4150 } else {
4151 None
4152 }
4153 });
4154 if let Some(mut element) = maybe_element {
4155 let window_size = window.viewport_size();
4156 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4157 let mut point = point(start_x, start_y - size.height);
4158
4159 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4160 if point.x + size.width >= window_size.width {
4161 point.x = window_size.width - size.width;
4162 }
4163
4164 window.defer_draw(element, point, 1)
4165 }
4166 }
4167
4168 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4169 window.paint_layer(layout.hitbox.bounds, |window| {
4170 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4171 let gutter_bg = cx.theme().colors().editor_gutter_background;
4172 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4173 window.paint_quad(fill(
4174 layout.position_map.text_hitbox.bounds,
4175 self.style.background,
4176 ));
4177
4178 if let EditorMode::Full = layout.mode {
4179 let mut active_rows = layout.active_rows.iter().peekable();
4180 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4181 let mut end_row = start_row.0;
4182 while active_rows
4183 .peek()
4184 .map_or(false, |(active_row, has_selection)| {
4185 active_row.0 == end_row + 1
4186 && *has_selection == contains_non_empty_selection
4187 })
4188 {
4189 active_rows.next().unwrap();
4190 end_row += 1;
4191 }
4192
4193 if !contains_non_empty_selection {
4194 let highlight_h_range =
4195 match layout.position_map.snapshot.current_line_highlight {
4196 CurrentLineHighlight::Gutter => Some(Range {
4197 start: layout.hitbox.left(),
4198 end: layout.gutter_hitbox.right(),
4199 }),
4200 CurrentLineHighlight::Line => Some(Range {
4201 start: layout.position_map.text_hitbox.bounds.left(),
4202 end: layout.position_map.text_hitbox.bounds.right(),
4203 }),
4204 CurrentLineHighlight::All => Some(Range {
4205 start: layout.hitbox.left(),
4206 end: layout.hitbox.right(),
4207 }),
4208 CurrentLineHighlight::None => None,
4209 };
4210 if let Some(range) = highlight_h_range {
4211 let active_line_bg = cx.theme().colors().editor_active_line_background;
4212 let bounds = Bounds {
4213 origin: point(
4214 range.start,
4215 layout.hitbox.origin.y
4216 + (start_row.as_f32() - scroll_top)
4217 * layout.position_map.line_height,
4218 ),
4219 size: size(
4220 range.end - range.start,
4221 layout.position_map.line_height
4222 * (end_row - start_row.0 + 1) as f32,
4223 ),
4224 };
4225 window.paint_quad(fill(bounds, active_line_bg));
4226 }
4227 }
4228 }
4229
4230 let mut paint_highlight =
4231 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4232 let origin = point(
4233 layout.hitbox.origin.x,
4234 layout.hitbox.origin.y
4235 + (highlight_row_start.as_f32() - scroll_top)
4236 * layout.position_map.line_height,
4237 );
4238 let size = size(
4239 layout.hitbox.size.width,
4240 layout.position_map.line_height
4241 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4242 );
4243 window.paint_quad(fill(Bounds { origin, size }, color));
4244 };
4245
4246 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4247 for (&new_row, &new_color) in &layout.highlighted_rows {
4248 match &mut current_paint {
4249 Some((current_color, current_range)) => {
4250 let current_color = *current_color;
4251 let new_range_started = current_color != new_color
4252 || current_range.end.next_row() != new_row;
4253 if new_range_started {
4254 paint_highlight(
4255 current_range.start,
4256 current_range.end,
4257 current_color,
4258 );
4259 current_paint = Some((new_color, new_row..new_row));
4260 continue;
4261 } else {
4262 current_range.end = current_range.end.next_row();
4263 }
4264 }
4265 None => current_paint = Some((new_color, new_row..new_row)),
4266 };
4267 }
4268 if let Some((color, range)) = current_paint {
4269 paint_highlight(range.start, range.end, color);
4270 }
4271
4272 let scroll_left =
4273 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4274
4275 for (wrap_position, active) in layout.wrap_guides.iter() {
4276 let x = (layout.position_map.text_hitbox.origin.x
4277 + *wrap_position
4278 + layout.position_map.em_width / 2.)
4279 - scroll_left;
4280
4281 let show_scrollbars = {
4282 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4283
4284 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4285 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4286 };
4287
4288 if x < layout.position_map.text_hitbox.origin.x
4289 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4290 {
4291 continue;
4292 }
4293
4294 let color = if *active {
4295 cx.theme().colors().editor_active_wrap_guide
4296 } else {
4297 cx.theme().colors().editor_wrap_guide
4298 };
4299 window.paint_quad(fill(
4300 Bounds {
4301 origin: point(x, layout.position_map.text_hitbox.origin.y),
4302 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4303 },
4304 color,
4305 ));
4306 }
4307 }
4308 })
4309 }
4310
4311 fn paint_indent_guides(
4312 &mut self,
4313 layout: &mut EditorLayout,
4314 window: &mut Window,
4315 cx: &mut App,
4316 ) {
4317 let Some(indent_guides) = &layout.indent_guides else {
4318 return;
4319 };
4320
4321 let faded_color = |color: Hsla, alpha: f32| {
4322 let mut faded = color;
4323 faded.a = alpha;
4324 faded
4325 };
4326
4327 for indent_guide in indent_guides {
4328 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4329 let settings = indent_guide.settings;
4330
4331 // TODO fixed for now, expose them through themes later
4332 const INDENT_AWARE_ALPHA: f32 = 0.2;
4333 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4334 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4335 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4336
4337 let line_color = match (settings.coloring, indent_guide.active) {
4338 (IndentGuideColoring::Disabled, _) => None,
4339 (IndentGuideColoring::Fixed, false) => {
4340 Some(cx.theme().colors().editor_indent_guide)
4341 }
4342 (IndentGuideColoring::Fixed, true) => {
4343 Some(cx.theme().colors().editor_indent_guide_active)
4344 }
4345 (IndentGuideColoring::IndentAware, false) => {
4346 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4347 }
4348 (IndentGuideColoring::IndentAware, true) => {
4349 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4350 }
4351 };
4352
4353 let background_color = match (settings.background_coloring, indent_guide.active) {
4354 (IndentGuideBackgroundColoring::Disabled, _) => None,
4355 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4356 indent_accent_colors,
4357 INDENT_AWARE_BACKGROUND_ALPHA,
4358 )),
4359 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4360 indent_accent_colors,
4361 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4362 )),
4363 };
4364
4365 let requested_line_width = if indent_guide.active {
4366 settings.active_line_width
4367 } else {
4368 settings.line_width
4369 }
4370 .clamp(1, 10);
4371 let mut line_indicator_width = 0.;
4372 if let Some(color) = line_color {
4373 window.paint_quad(fill(
4374 Bounds {
4375 origin: indent_guide.origin,
4376 size: size(px(requested_line_width as f32), indent_guide.length),
4377 },
4378 color,
4379 ));
4380 line_indicator_width = requested_line_width as f32;
4381 }
4382
4383 if let Some(color) = background_color {
4384 let width = indent_guide.single_indent_width - px(line_indicator_width);
4385 window.paint_quad(fill(
4386 Bounds {
4387 origin: point(
4388 indent_guide.origin.x + px(line_indicator_width),
4389 indent_guide.origin.y,
4390 ),
4391 size: size(width, indent_guide.length),
4392 },
4393 color,
4394 ));
4395 }
4396 }
4397 }
4398
4399 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4400 let is_singleton = self.editor.read(cx).is_singleton(cx);
4401
4402 let line_height = layout.position_map.line_height;
4403 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4404
4405 for LineNumberLayout {
4406 shaped_line,
4407 hitbox,
4408 display_row,
4409 } in layout.line_numbers.values()
4410 {
4411 let Some(hitbox) = hitbox else {
4412 continue;
4413 };
4414
4415 let is_active = layout.active_rows.contains_key(&display_row);
4416
4417 let color = if is_active {
4418 cx.theme().colors().editor_active_line_number
4419 } else if !is_singleton && hitbox.is_hovered(window) {
4420 cx.theme().colors().editor_hover_line_number
4421 } else {
4422 cx.theme().colors().editor_line_number
4423 };
4424
4425 let Some(line) = self
4426 .shape_line_number(shaped_line.text.clone(), color, window)
4427 .log_err()
4428 else {
4429 continue;
4430 };
4431 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4432 continue;
4433 };
4434 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4435 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4436 if is_singleton {
4437 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4438 } else {
4439 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4440 }
4441 }
4442 }
4443
4444 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4445 if layout.display_hunks.is_empty() {
4446 return;
4447 }
4448
4449 let line_height = layout.position_map.line_height;
4450 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4451 for (hunk, hitbox) in &layout.display_hunks {
4452 let hunk_to_paint = match hunk {
4453 DisplayDiffHunk::Folded { .. } => {
4454 let hunk_bounds = Self::diff_hunk_bounds(
4455 &layout.position_map.snapshot,
4456 line_height,
4457 layout.gutter_hitbox.bounds,
4458 hunk,
4459 );
4460 Some((
4461 hunk_bounds,
4462 cx.theme().status().modified,
4463 Corners::all(px(0.)),
4464 ))
4465 }
4466 DisplayDiffHunk::Unfolded {
4467 status,
4468 display_row_range,
4469 ..
4470 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4471 DiffHunkStatus::Added => (
4472 hunk_hitbox.bounds,
4473 cx.theme().status().created,
4474 Corners::all(px(0.)),
4475 ),
4476 DiffHunkStatus::Modified => (
4477 hunk_hitbox.bounds,
4478 cx.theme().status().modified,
4479 Corners::all(px(0.)),
4480 ),
4481 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4482 hunk_hitbox.bounds,
4483 cx.theme().status().deleted,
4484 Corners::all(px(0.)),
4485 ),
4486 DiffHunkStatus::Removed => (
4487 Bounds::new(
4488 point(
4489 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4490 hunk_hitbox.origin.y,
4491 ),
4492 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4493 ),
4494 cx.theme().status().deleted,
4495 Corners::all(1. * line_height),
4496 ),
4497 }),
4498 };
4499
4500 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4501 window.paint_quad(quad(
4502 hunk_bounds,
4503 corner_radii,
4504 background_color,
4505 Edges::default(),
4506 transparent_black(),
4507 ));
4508 }
4509 }
4510 });
4511 }
4512
4513 fn diff_hunk_bounds(
4514 snapshot: &EditorSnapshot,
4515 line_height: Pixels,
4516 gutter_bounds: Bounds<Pixels>,
4517 hunk: &DisplayDiffHunk,
4518 ) -> Bounds<Pixels> {
4519 let scroll_position = snapshot.scroll_position();
4520 let scroll_top = scroll_position.y * line_height;
4521 let gutter_strip_width = (0.275 * line_height).floor();
4522
4523 match hunk {
4524 DisplayDiffHunk::Folded { display_row, .. } => {
4525 let start_y = display_row.as_f32() * line_height - scroll_top;
4526 let end_y = start_y + line_height;
4527 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4528 let highlight_size = size(gutter_strip_width, end_y - start_y);
4529 Bounds::new(highlight_origin, highlight_size)
4530 }
4531 DisplayDiffHunk::Unfolded {
4532 display_row_range,
4533 status,
4534 ..
4535 } => {
4536 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4537 let row = display_row_range.start;
4538
4539 let offset = line_height / 2.;
4540 let start_y = row.as_f32() * line_height - offset - scroll_top;
4541 let end_y = start_y + line_height;
4542
4543 let width = (0.35 * line_height).floor();
4544 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4545 let highlight_size = size(width, end_y - start_y);
4546 Bounds::new(highlight_origin, highlight_size)
4547 } else {
4548 let start_row = display_row_range.start;
4549 let end_row = display_row_range.end;
4550 // If we're in a multibuffer, row range span might include an
4551 // excerpt header, so if we were to draw the marker straight away,
4552 // the hunk might include the rows of that header.
4553 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4554 // Instead, we simply check whether the range we're dealing with includes
4555 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4556 let end_row_in_current_excerpt = snapshot
4557 .blocks_in_range(start_row..end_row)
4558 .find_map(|(start_row, block)| {
4559 if matches!(block, Block::ExcerptBoundary { .. }) {
4560 Some(start_row)
4561 } else {
4562 None
4563 }
4564 })
4565 .unwrap_or(end_row);
4566
4567 let start_y = start_row.as_f32() * line_height - scroll_top;
4568 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4569
4570 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4571 let highlight_size = size(gutter_strip_width, end_y - start_y);
4572 Bounds::new(highlight_origin, highlight_size)
4573 }
4574 }
4575 }
4576 }
4577
4578 fn paint_gutter_indicators(
4579 &self,
4580 layout: &mut EditorLayout,
4581 window: &mut Window,
4582 cx: &mut App,
4583 ) {
4584 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4585 window.with_element_namespace("crease_toggles", |window| {
4586 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4587 crease_toggle.paint(window, cx);
4588 }
4589 });
4590
4591 for test_indicator in layout.test_indicators.iter_mut() {
4592 test_indicator.paint(window, cx);
4593 }
4594
4595 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4596 indicator.paint(window, cx);
4597 }
4598 });
4599 }
4600
4601 fn paint_gutter_highlights(
4602 &self,
4603 layout: &mut EditorLayout,
4604 window: &mut Window,
4605 cx: &mut App,
4606 ) {
4607 for (_, hunk_hitbox) in &layout.display_hunks {
4608 if let Some(hunk_hitbox) = hunk_hitbox {
4609 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4610 }
4611 }
4612
4613 let show_git_gutter = layout
4614 .position_map
4615 .snapshot
4616 .show_git_diff_gutter
4617 .unwrap_or_else(|| {
4618 matches!(
4619 ProjectSettings::get_global(cx).git.git_gutter,
4620 Some(GitGutterSetting::TrackedFiles)
4621 )
4622 });
4623 if show_git_gutter {
4624 Self::paint_diff_hunks(layout, window, cx)
4625 }
4626
4627 let highlight_width = 0.275 * layout.position_map.line_height;
4628 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4629 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4630 for (range, color) in &layout.highlighted_gutter_ranges {
4631 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4632 layout.visible_display_row_range.start - DisplayRow(1)
4633 } else {
4634 range.start.row()
4635 };
4636 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4637 layout.visible_display_row_range.end + DisplayRow(1)
4638 } else {
4639 range.end.row()
4640 };
4641
4642 let start_y = layout.gutter_hitbox.top()
4643 + start_row.0 as f32 * layout.position_map.line_height
4644 - layout.position_map.scroll_pixel_position.y;
4645 let end_y = layout.gutter_hitbox.top()
4646 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4647 - layout.position_map.scroll_pixel_position.y;
4648 let bounds = Bounds::from_corners(
4649 point(layout.gutter_hitbox.left(), start_y),
4650 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4651 );
4652 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4653 }
4654 });
4655 }
4656
4657 fn paint_blamed_display_rows(
4658 &self,
4659 layout: &mut EditorLayout,
4660 window: &mut Window,
4661 cx: &mut App,
4662 ) {
4663 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4664 return;
4665 };
4666
4667 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4668 for mut blame_element in blamed_display_rows.into_iter() {
4669 blame_element.paint(window, cx);
4670 }
4671 })
4672 }
4673
4674 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4675 window.with_content_mask(
4676 Some(ContentMask {
4677 bounds: layout.position_map.text_hitbox.bounds,
4678 }),
4679 |window| {
4680 let cursor_style = if self
4681 .editor
4682 .read(cx)
4683 .hovered_link_state
4684 .as_ref()
4685 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4686 {
4687 CursorStyle::PointingHand
4688 } else {
4689 CursorStyle::IBeam
4690 };
4691 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4692
4693 let invisible_display_ranges = self.paint_highlights(layout, window);
4694 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4695 self.paint_redactions(layout, window);
4696 self.paint_cursors(layout, window, cx);
4697 self.paint_inline_blame(layout, window, cx);
4698 self.paint_diff_hunk_controls(layout, window, cx);
4699 window.with_element_namespace("crease_trailers", |window| {
4700 for trailer in layout.crease_trailers.iter_mut().flatten() {
4701 trailer.element.paint(window, cx);
4702 }
4703 });
4704 },
4705 )
4706 }
4707
4708 fn paint_highlights(
4709 &mut self,
4710 layout: &mut EditorLayout,
4711 window: &mut Window,
4712 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4713 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4714 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4715 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4716 for (range, color) in &layout.highlighted_ranges {
4717 self.paint_highlighted_range(
4718 range.clone(),
4719 *color,
4720 Pixels::ZERO,
4721 line_end_overshoot,
4722 layout,
4723 window,
4724 );
4725 }
4726
4727 let corner_radius = 0.15 * layout.position_map.line_height;
4728
4729 for (player_color, selections) in &layout.selections {
4730 for selection in selections.iter() {
4731 self.paint_highlighted_range(
4732 selection.range.clone(),
4733 player_color.selection,
4734 corner_radius,
4735 corner_radius * 2.,
4736 layout,
4737 window,
4738 );
4739
4740 if selection.is_local && !selection.range.is_empty() {
4741 invisible_display_ranges.push(selection.range.clone());
4742 }
4743 }
4744 }
4745 invisible_display_ranges
4746 })
4747 }
4748
4749 fn paint_lines(
4750 &mut self,
4751 invisible_display_ranges: &[Range<DisplayPoint>],
4752 layout: &mut EditorLayout,
4753 window: &mut Window,
4754 cx: &mut App,
4755 ) {
4756 let whitespace_setting = self
4757 .editor
4758 .read(cx)
4759 .buffer
4760 .read(cx)
4761 .settings_at(0, cx)
4762 .show_whitespaces;
4763
4764 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4765 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4766 line_with_invisibles.draw(
4767 layout,
4768 row,
4769 layout.content_origin,
4770 whitespace_setting,
4771 invisible_display_ranges,
4772 window,
4773 cx,
4774 )
4775 }
4776
4777 for line_element in &mut layout.line_elements {
4778 line_element.paint(window, cx);
4779 }
4780 }
4781
4782 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4783 if layout.redacted_ranges.is_empty() {
4784 return;
4785 }
4786
4787 let line_end_overshoot = layout.line_end_overshoot();
4788
4789 // A softer than perfect black
4790 let redaction_color = gpui::rgb(0x0e1111);
4791
4792 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4793 for range in layout.redacted_ranges.iter() {
4794 self.paint_highlighted_range(
4795 range.clone(),
4796 redaction_color.into(),
4797 Pixels::ZERO,
4798 line_end_overshoot,
4799 layout,
4800 window,
4801 );
4802 }
4803 });
4804 }
4805
4806 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4807 for cursor in &mut layout.visible_cursors {
4808 cursor.paint(layout.content_origin, window, cx);
4809 }
4810 }
4811
4812 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4813 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4814
4815 if let Some(scrollbar_layout) = scrollbar_x {
4816 let hitbox = scrollbar_layout.hitbox.clone();
4817 let text_unit_size = scrollbar_layout.text_unit_size;
4818 let visible_range = scrollbar_layout.visible_range.clone();
4819 let thumb_bounds = scrollbar_layout.thumb_bounds();
4820
4821 if scrollbar_layout.visible {
4822 window.paint_layer(hitbox.bounds, |window| {
4823 window.paint_quad(quad(
4824 hitbox.bounds,
4825 Corners::default(),
4826 cx.theme().colors().scrollbar_track_background,
4827 Edges {
4828 top: Pixels::ZERO,
4829 right: Pixels::ZERO,
4830 bottom: Pixels::ZERO,
4831 left: Pixels::ZERO,
4832 },
4833 cx.theme().colors().scrollbar_track_border,
4834 ));
4835
4836 window.paint_quad(quad(
4837 thumb_bounds,
4838 Corners::default(),
4839 cx.theme().colors().scrollbar_thumb_background,
4840 Edges {
4841 top: Pixels::ZERO,
4842 right: Pixels::ZERO,
4843 bottom: Pixels::ZERO,
4844 left: ScrollbarLayout::BORDER_WIDTH,
4845 },
4846 cx.theme().colors().scrollbar_thumb_border,
4847 ));
4848 })
4849 }
4850
4851 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4852
4853 window.on_mouse_event({
4854 let editor = self.editor.clone();
4855
4856 // there may be a way to avoid this clone
4857 let hitbox = hitbox.clone();
4858
4859 let mut mouse_position = window.mouse_position();
4860 move |event: &MouseMoveEvent, phase, window, cx| {
4861 if phase == DispatchPhase::Capture {
4862 return;
4863 }
4864
4865 editor.update(cx, |editor, cx| {
4866 if event.pressed_button == Some(MouseButton::Left)
4867 && editor
4868 .scroll_manager
4869 .is_dragging_scrollbar(Axis::Horizontal)
4870 {
4871 let x = mouse_position.x;
4872 let new_x = event.position.x;
4873 if (hitbox.left()..hitbox.right()).contains(&x) {
4874 let mut position = editor.scroll_position(cx);
4875
4876 position.x += (new_x - x) / text_unit_size;
4877 if position.x < 0.0 {
4878 position.x = 0.0;
4879 }
4880 editor.set_scroll_position(position, window, cx);
4881 }
4882
4883 cx.stop_propagation();
4884 } else {
4885 editor.scroll_manager.set_is_dragging_scrollbar(
4886 Axis::Horizontal,
4887 false,
4888 cx,
4889 );
4890
4891 if hitbox.is_hovered(window) {
4892 editor.scroll_manager.show_scrollbar(window, cx);
4893 }
4894 }
4895 mouse_position = event.position;
4896 })
4897 }
4898 });
4899
4900 if self
4901 .editor
4902 .read(cx)
4903 .scroll_manager
4904 .is_dragging_scrollbar(Axis::Horizontal)
4905 {
4906 window.on_mouse_event({
4907 let editor = self.editor.clone();
4908 move |_: &MouseUpEvent, phase, _, cx| {
4909 if phase == DispatchPhase::Capture {
4910 return;
4911 }
4912
4913 editor.update(cx, |editor, cx| {
4914 editor.scroll_manager.set_is_dragging_scrollbar(
4915 Axis::Horizontal,
4916 false,
4917 cx,
4918 );
4919 cx.stop_propagation();
4920 });
4921 }
4922 });
4923 } else {
4924 window.on_mouse_event({
4925 let editor = self.editor.clone();
4926
4927 move |event: &MouseDownEvent, phase, window, cx| {
4928 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4929 return;
4930 }
4931
4932 editor.update(cx, |editor, cx| {
4933 editor.scroll_manager.set_is_dragging_scrollbar(
4934 Axis::Horizontal,
4935 true,
4936 cx,
4937 );
4938
4939 let x = event.position.x;
4940
4941 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4942 let center_row =
4943 ((x - hitbox.left()) / text_unit_size).round() as u32;
4944 let top_row = center_row.saturating_sub(
4945 (visible_range.end - visible_range.start) as u32 / 2,
4946 );
4947
4948 let mut position = editor.scroll_position(cx);
4949 position.x = top_row as f32;
4950
4951 editor.set_scroll_position(position, window, cx);
4952 } else {
4953 editor.scroll_manager.show_scrollbar(window, cx);
4954 }
4955
4956 cx.stop_propagation();
4957 });
4958 }
4959 });
4960 }
4961 }
4962
4963 if let Some(scrollbar_layout) = scrollbar_y {
4964 let hitbox = scrollbar_layout.hitbox.clone();
4965 let text_unit_size = scrollbar_layout.text_unit_size;
4966 let visible_range = scrollbar_layout.visible_range.clone();
4967 let thumb_bounds = scrollbar_layout.thumb_bounds();
4968
4969 if scrollbar_layout.visible {
4970 window.paint_layer(hitbox.bounds, |window| {
4971 window.paint_quad(quad(
4972 hitbox.bounds,
4973 Corners::default(),
4974 cx.theme().colors().scrollbar_track_background,
4975 Edges {
4976 top: Pixels::ZERO,
4977 right: Pixels::ZERO,
4978 bottom: Pixels::ZERO,
4979 left: ScrollbarLayout::BORDER_WIDTH,
4980 },
4981 cx.theme().colors().scrollbar_track_border,
4982 ));
4983
4984 let fast_markers =
4985 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
4986 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
4987 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
4988
4989 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
4990 for marker in markers.iter().chain(&fast_markers) {
4991 let mut marker = marker.clone();
4992 marker.bounds.origin += hitbox.origin;
4993 window.paint_quad(marker);
4994 }
4995
4996 window.paint_quad(quad(
4997 thumb_bounds,
4998 Corners::default(),
4999 cx.theme().colors().scrollbar_thumb_background,
5000 Edges {
5001 top: Pixels::ZERO,
5002 right: Pixels::ZERO,
5003 bottom: Pixels::ZERO,
5004 left: ScrollbarLayout::BORDER_WIDTH,
5005 },
5006 cx.theme().colors().scrollbar_thumb_border,
5007 ));
5008 });
5009 }
5010
5011 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5012
5013 window.on_mouse_event({
5014 let editor = self.editor.clone();
5015
5016 let hitbox = hitbox.clone();
5017
5018 let mut mouse_position = window.mouse_position();
5019 move |event: &MouseMoveEvent, phase, window, cx| {
5020 if phase == DispatchPhase::Capture {
5021 return;
5022 }
5023
5024 editor.update(cx, |editor, cx| {
5025 if event.pressed_button == Some(MouseButton::Left)
5026 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5027 {
5028 let y = mouse_position.y;
5029 let new_y = event.position.y;
5030 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5031 let mut position = editor.scroll_position(cx);
5032 position.y += (new_y - y) / text_unit_size;
5033 if position.y < 0.0 {
5034 position.y = 0.0;
5035 }
5036 editor.set_scroll_position(position, window, cx);
5037 }
5038 } else {
5039 editor.scroll_manager.set_is_dragging_scrollbar(
5040 Axis::Vertical,
5041 false,
5042 cx,
5043 );
5044
5045 if hitbox.is_hovered(window) {
5046 editor.scroll_manager.show_scrollbar(window, cx);
5047 }
5048 }
5049 mouse_position = event.position;
5050 })
5051 }
5052 });
5053
5054 if self
5055 .editor
5056 .read(cx)
5057 .scroll_manager
5058 .is_dragging_scrollbar(Axis::Vertical)
5059 {
5060 window.on_mouse_event({
5061 let editor = self.editor.clone();
5062 move |_: &MouseUpEvent, phase, _, cx| {
5063 if phase == DispatchPhase::Capture {
5064 return;
5065 }
5066
5067 editor.update(cx, |editor, cx| {
5068 editor.scroll_manager.set_is_dragging_scrollbar(
5069 Axis::Vertical,
5070 false,
5071 cx,
5072 );
5073 cx.stop_propagation();
5074 });
5075 }
5076 });
5077 } else {
5078 window.on_mouse_event({
5079 let editor = self.editor.clone();
5080
5081 move |event: &MouseDownEvent, phase, window, cx| {
5082 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5083 return;
5084 }
5085
5086 editor.update(cx, |editor, cx| {
5087 editor.scroll_manager.set_is_dragging_scrollbar(
5088 Axis::Vertical,
5089 true,
5090 cx,
5091 );
5092
5093 let y = event.position.y;
5094 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5095 let center_row =
5096 ((y - hitbox.top()) / text_unit_size).round() as u32;
5097 let top_row = center_row.saturating_sub(
5098 (visible_range.end - visible_range.start) as u32 / 2,
5099 );
5100 let mut position = editor.scroll_position(cx);
5101 position.y = top_row as f32;
5102 editor.set_scroll_position(position, window, cx);
5103 } else {
5104 editor.scroll_manager.show_scrollbar(window, cx);
5105 }
5106
5107 cx.stop_propagation();
5108 });
5109 }
5110 });
5111 }
5112 }
5113 }
5114
5115 fn collect_fast_scrollbar_markers(
5116 &self,
5117 layout: &EditorLayout,
5118 scrollbar_layout: &ScrollbarLayout,
5119 cx: &mut App,
5120 ) -> Vec<PaintQuad> {
5121 const LIMIT: usize = 100;
5122 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5123 return vec![];
5124 }
5125 let cursor_ranges = layout
5126 .cursors
5127 .iter()
5128 .map(|(point, color)| ColoredRange {
5129 start: point.row(),
5130 end: point.row(),
5131 color: *color,
5132 })
5133 .collect_vec();
5134 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5135 }
5136
5137 fn refresh_slow_scrollbar_markers(
5138 &self,
5139 layout: &EditorLayout,
5140 scrollbar_layout: &ScrollbarLayout,
5141 window: &mut Window,
5142 cx: &mut App,
5143 ) {
5144 self.editor.update(cx, |editor, cx| {
5145 if !editor.is_singleton(cx)
5146 || !editor
5147 .scrollbar_marker_state
5148 .should_refresh(scrollbar_layout.hitbox.size)
5149 {
5150 return;
5151 }
5152
5153 let scrollbar_layout = scrollbar_layout.clone();
5154 let background_highlights = editor.background_highlights.clone();
5155 let snapshot = layout.position_map.snapshot.clone();
5156 let theme = cx.theme().clone();
5157 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5158
5159 editor.scrollbar_marker_state.dirty = false;
5160 editor.scrollbar_marker_state.pending_refresh =
5161 Some(cx.spawn_in(window, |editor, mut cx| async move {
5162 let scrollbar_size = scrollbar_layout.hitbox.size;
5163 let scrollbar_markers = cx
5164 .background_executor()
5165 .spawn(async move {
5166 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5167 let mut marker_quads = Vec::new();
5168 if scrollbar_settings.git_diff {
5169 let marker_row_ranges =
5170 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5171 let start_display_row =
5172 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5173 .to_display_point(&snapshot.display_snapshot)
5174 .row();
5175 let mut end_display_row =
5176 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5177 .to_display_point(&snapshot.display_snapshot)
5178 .row();
5179 if end_display_row != start_display_row {
5180 end_display_row.0 -= 1;
5181 }
5182 let color = match &hunk.status() {
5183 DiffHunkStatus::Added => theme.status().created,
5184 DiffHunkStatus::Modified => theme.status().modified,
5185 DiffHunkStatus::Removed => theme.status().deleted,
5186 };
5187 ColoredRange {
5188 start: start_display_row,
5189 end: end_display_row,
5190 color,
5191 }
5192 });
5193
5194 marker_quads.extend(
5195 scrollbar_layout
5196 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5197 );
5198 }
5199
5200 for (background_highlight_id, (_, background_ranges)) in
5201 background_highlights.iter()
5202 {
5203 let is_search_highlights = *background_highlight_id
5204 == TypeId::of::<BufferSearchHighlights>();
5205 let is_symbol_occurrences = *background_highlight_id
5206 == TypeId::of::<DocumentHighlightRead>()
5207 || *background_highlight_id
5208 == TypeId::of::<DocumentHighlightWrite>();
5209 if (is_search_highlights && scrollbar_settings.search_results)
5210 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5211 {
5212 let mut color = theme.status().info;
5213 if is_symbol_occurrences {
5214 color.fade_out(0.5);
5215 }
5216 let marker_row_ranges = background_ranges.iter().map(|range| {
5217 let display_start = range
5218 .start
5219 .to_display_point(&snapshot.display_snapshot);
5220 let display_end =
5221 range.end.to_display_point(&snapshot.display_snapshot);
5222 ColoredRange {
5223 start: display_start.row(),
5224 end: display_end.row(),
5225 color,
5226 }
5227 });
5228 marker_quads.extend(
5229 scrollbar_layout
5230 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5231 );
5232 }
5233 }
5234
5235 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5236 let diagnostics = snapshot
5237 .buffer_snapshot
5238 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5239 // Don't show diagnostics the user doesn't care about
5240 .filter(|diagnostic| {
5241 match (
5242 scrollbar_settings.diagnostics,
5243 diagnostic.diagnostic.severity,
5244 ) {
5245 (ScrollbarDiagnostics::All, _) => true,
5246 (
5247 ScrollbarDiagnostics::Error,
5248 DiagnosticSeverity::ERROR,
5249 ) => true,
5250 (
5251 ScrollbarDiagnostics::Warning,
5252 DiagnosticSeverity::ERROR
5253 | DiagnosticSeverity::WARNING,
5254 ) => true,
5255 (
5256 ScrollbarDiagnostics::Information,
5257 DiagnosticSeverity::ERROR
5258 | DiagnosticSeverity::WARNING
5259 | DiagnosticSeverity::INFORMATION,
5260 ) => true,
5261 (_, _) => false,
5262 }
5263 })
5264 // We want to sort by severity, in order to paint the most severe diagnostics last.
5265 .sorted_by_key(|diagnostic| {
5266 std::cmp::Reverse(diagnostic.diagnostic.severity)
5267 });
5268
5269 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5270 let start_display = diagnostic
5271 .range
5272 .start
5273 .to_display_point(&snapshot.display_snapshot);
5274 let end_display = diagnostic
5275 .range
5276 .end
5277 .to_display_point(&snapshot.display_snapshot);
5278 let color = match diagnostic.diagnostic.severity {
5279 DiagnosticSeverity::ERROR => theme.status().error,
5280 DiagnosticSeverity::WARNING => theme.status().warning,
5281 DiagnosticSeverity::INFORMATION => theme.status().info,
5282 _ => theme.status().hint,
5283 };
5284 ColoredRange {
5285 start: start_display.row(),
5286 end: end_display.row(),
5287 color,
5288 }
5289 });
5290 marker_quads.extend(
5291 scrollbar_layout
5292 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5293 );
5294 }
5295
5296 Arc::from(marker_quads)
5297 })
5298 .await;
5299
5300 editor.update(&mut cx, |editor, cx| {
5301 editor.scrollbar_marker_state.markers = scrollbar_markers;
5302 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5303 editor.scrollbar_marker_state.pending_refresh = None;
5304 cx.notify();
5305 })?;
5306
5307 Ok(())
5308 }));
5309 });
5310 }
5311
5312 #[allow(clippy::too_many_arguments)]
5313 fn paint_highlighted_range(
5314 &self,
5315 range: Range<DisplayPoint>,
5316 color: Hsla,
5317 corner_radius: Pixels,
5318 line_end_overshoot: Pixels,
5319 layout: &EditorLayout,
5320 window: &mut Window,
5321 ) {
5322 let start_row = layout.visible_display_row_range.start;
5323 let end_row = layout.visible_display_row_range.end;
5324 if range.start != range.end {
5325 let row_range = if range.end.column() == 0 {
5326 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5327 } else {
5328 cmp::max(range.start.row(), start_row)
5329 ..cmp::min(range.end.row().next_row(), end_row)
5330 };
5331
5332 let highlighted_range = HighlightedRange {
5333 color,
5334 line_height: layout.position_map.line_height,
5335 corner_radius,
5336 start_y: layout.content_origin.y
5337 + row_range.start.as_f32() * layout.position_map.line_height
5338 - layout.position_map.scroll_pixel_position.y,
5339 lines: row_range
5340 .iter_rows()
5341 .map(|row| {
5342 let line_layout =
5343 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5344 HighlightedRangeLine {
5345 start_x: if row == range.start.row() {
5346 layout.content_origin.x
5347 + line_layout.x_for_index(range.start.column() as usize)
5348 - layout.position_map.scroll_pixel_position.x
5349 } else {
5350 layout.content_origin.x
5351 - layout.position_map.scroll_pixel_position.x
5352 },
5353 end_x: if row == range.end.row() {
5354 layout.content_origin.x
5355 + line_layout.x_for_index(range.end.column() as usize)
5356 - layout.position_map.scroll_pixel_position.x
5357 } else {
5358 layout.content_origin.x + line_layout.width + line_end_overshoot
5359 - layout.position_map.scroll_pixel_position.x
5360 },
5361 }
5362 })
5363 .collect(),
5364 };
5365
5366 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5367 }
5368 }
5369
5370 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5371 if let Some(mut inline_blame) = layout.inline_blame.take() {
5372 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5373 inline_blame.paint(window, cx);
5374 })
5375 }
5376 }
5377
5378 fn paint_diff_hunk_controls(
5379 &mut self,
5380 layout: &mut EditorLayout,
5381 window: &mut Window,
5382 cx: &mut App,
5383 ) {
5384 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5385 diff_hunk_control.paint(window, cx);
5386 }
5387 }
5388
5389 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5390 for mut block in layout.blocks.drain(..) {
5391 block.element.paint(window, cx);
5392 }
5393 }
5394
5395 fn paint_inline_completion_popover(
5396 &mut self,
5397 layout: &mut EditorLayout,
5398 window: &mut Window,
5399 cx: &mut App,
5400 ) {
5401 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5402 inline_completion_popover.paint(window, cx);
5403 }
5404 }
5405
5406 fn paint_mouse_context_menu(
5407 &mut self,
5408 layout: &mut EditorLayout,
5409 window: &mut Window,
5410 cx: &mut App,
5411 ) {
5412 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5413 mouse_context_menu.paint(window, cx);
5414 }
5415 }
5416
5417 fn paint_scroll_wheel_listener(
5418 &mut self,
5419 layout: &EditorLayout,
5420 window: &mut Window,
5421 cx: &mut App,
5422 ) {
5423 window.on_mouse_event({
5424 let position_map = layout.position_map.clone();
5425 let editor = self.editor.clone();
5426 let hitbox = layout.hitbox.clone();
5427 let mut delta = ScrollDelta::default();
5428
5429 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5430 // accidentally turn off their scrolling.
5431 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5432
5433 move |event: &ScrollWheelEvent, phase, window, cx| {
5434 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5435 delta = delta.coalesce(event.delta);
5436 editor.update(cx, |editor, cx| {
5437 let position_map: &PositionMap = &position_map;
5438
5439 let line_height = position_map.line_height;
5440 let max_glyph_width = position_map.em_width;
5441 let (delta, axis) = match delta {
5442 gpui::ScrollDelta::Pixels(mut pixels) => {
5443 //Trackpad
5444 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5445 (pixels, axis)
5446 }
5447
5448 gpui::ScrollDelta::Lines(lines) => {
5449 //Not trackpad
5450 let pixels =
5451 point(lines.x * max_glyph_width, lines.y * line_height);
5452 (pixels, None)
5453 }
5454 };
5455
5456 let current_scroll_position = position_map.snapshot.scroll_position();
5457 let x = (current_scroll_position.x * max_glyph_width
5458 - (delta.x * scroll_sensitivity))
5459 / max_glyph_width;
5460 let y = (current_scroll_position.y * line_height
5461 - (delta.y * scroll_sensitivity))
5462 / line_height;
5463 let mut scroll_position =
5464 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5465 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5466 if forbid_vertical_scroll {
5467 scroll_position.y = current_scroll_position.y;
5468 }
5469
5470 if scroll_position != current_scroll_position {
5471 editor.scroll(scroll_position, axis, window, cx);
5472 cx.stop_propagation();
5473 } else if y < 0. {
5474 // Due to clamping, we may fail to detect cases of overscroll to the top;
5475 // We want the scroll manager to get an update in such cases and detect the change of direction
5476 // on the next frame.
5477 cx.notify();
5478 }
5479 });
5480 }
5481 }
5482 });
5483 }
5484
5485 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5486 self.paint_scroll_wheel_listener(layout, window, cx);
5487
5488 window.on_mouse_event({
5489 let position_map = layout.position_map.clone();
5490 let editor = self.editor.clone();
5491 let multi_buffer_range =
5492 layout
5493 .display_hunks
5494 .iter()
5495 .find_map(|(hunk, hunk_hitbox)| match hunk {
5496 DisplayDiffHunk::Folded { .. } => None,
5497 DisplayDiffHunk::Unfolded {
5498 multi_buffer_range, ..
5499 } => {
5500 if hunk_hitbox
5501 .as_ref()
5502 .map(|hitbox| hitbox.is_hovered(window))
5503 .unwrap_or(false)
5504 {
5505 Some(multi_buffer_range.clone())
5506 } else {
5507 None
5508 }
5509 }
5510 });
5511 let line_numbers = layout.line_numbers.clone();
5512
5513 move |event: &MouseDownEvent, phase, window, cx| {
5514 if phase == DispatchPhase::Bubble {
5515 match event.button {
5516 MouseButton::Left => editor.update(cx, |editor, cx| {
5517 let pending_mouse_down = editor
5518 .pending_mouse_down
5519 .get_or_insert_with(Default::default)
5520 .clone();
5521
5522 *pending_mouse_down.borrow_mut() = Some(event.clone());
5523
5524 Self::mouse_left_down(
5525 editor,
5526 event,
5527 multi_buffer_range.clone(),
5528 &position_map,
5529 line_numbers.as_ref(),
5530 window,
5531 cx,
5532 );
5533 }),
5534 MouseButton::Right => editor.update(cx, |editor, cx| {
5535 Self::mouse_right_down(editor, event, &position_map, window, cx);
5536 }),
5537 MouseButton::Middle => editor.update(cx, |editor, cx| {
5538 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5539 }),
5540 _ => {}
5541 };
5542 }
5543 }
5544 });
5545
5546 window.on_mouse_event({
5547 let editor = self.editor.clone();
5548 let position_map = layout.position_map.clone();
5549
5550 move |event: &MouseUpEvent, phase, window, cx| {
5551 if phase == DispatchPhase::Bubble {
5552 editor.update(cx, |editor, cx| {
5553 Self::mouse_up(editor, event, &position_map, window, cx)
5554 });
5555 }
5556 }
5557 });
5558
5559 window.on_mouse_event({
5560 let editor = self.editor.clone();
5561 let position_map = layout.position_map.clone();
5562 let mut captured_mouse_down = None;
5563
5564 move |event: &MouseUpEvent, phase, window, cx| match phase {
5565 // Clear the pending mouse down during the capture phase,
5566 // so that it happens even if another event handler stops
5567 // propagation.
5568 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5569 let pending_mouse_down = editor
5570 .pending_mouse_down
5571 .get_or_insert_with(Default::default)
5572 .clone();
5573
5574 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5575 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5576 captured_mouse_down = pending_mouse_down.take();
5577 window.refresh();
5578 }
5579 }),
5580 // Fire click handlers during the bubble phase.
5581 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5582 if let Some(mouse_down) = captured_mouse_down.take() {
5583 let event = ClickEvent {
5584 down: mouse_down,
5585 up: event.clone(),
5586 };
5587 Self::click(editor, &event, &position_map, window, cx);
5588 }
5589 }),
5590 }
5591 });
5592
5593 window.on_mouse_event({
5594 let position_map = layout.position_map.clone();
5595 let editor = self.editor.clone();
5596
5597 move |event: &MouseMoveEvent, phase, window, cx| {
5598 if phase == DispatchPhase::Bubble {
5599 editor.update(cx, |editor, cx| {
5600 if editor.hover_state.focused(window, cx) {
5601 return;
5602 }
5603 if event.pressed_button == Some(MouseButton::Left)
5604 || event.pressed_button == Some(MouseButton::Middle)
5605 {
5606 Self::mouse_dragged(editor, event, &position_map, window, cx)
5607 }
5608
5609 Self::mouse_moved(editor, event, &position_map, window, cx)
5610 });
5611 }
5612 }
5613 });
5614 }
5615
5616 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5617 bounds.top_right().x - self.style.scrollbar_width
5618 }
5619
5620 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5621 let style = &self.style;
5622 let font_size = style.text.font_size.to_pixels(window.rem_size());
5623 let layout = window
5624 .text_system()
5625 .shape_line(
5626 SharedString::from(" ".repeat(column)),
5627 font_size,
5628 &[TextRun {
5629 len: column,
5630 font: style.text.font(),
5631 color: Hsla::default(),
5632 background_color: None,
5633 underline: None,
5634 strikethrough: None,
5635 }],
5636 )
5637 .unwrap();
5638
5639 layout.width
5640 }
5641
5642 fn max_line_number_width(
5643 &self,
5644 snapshot: &EditorSnapshot,
5645 window: &mut Window,
5646 cx: &mut App,
5647 ) -> Pixels {
5648 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5649 self.column_pixels(digit_count, window, cx)
5650 }
5651
5652 fn shape_line_number(
5653 &self,
5654 text: SharedString,
5655 color: Hsla,
5656 window: &mut Window,
5657 ) -> anyhow::Result<ShapedLine> {
5658 let run = TextRun {
5659 len: text.len(),
5660 font: self.style.text.font(),
5661 color,
5662 background_color: None,
5663 underline: None,
5664 strikethrough: None,
5665 };
5666 window.text_system().shape_line(
5667 text,
5668 self.style.text.font_size.to_pixels(window.rem_size()),
5669 &[run],
5670 )
5671 }
5672}
5673
5674fn header_jump_data(
5675 snapshot: &EditorSnapshot,
5676 block_row_start: DisplayRow,
5677 height: u32,
5678 for_excerpt: &ExcerptInfo,
5679) -> JumpData {
5680 let range = &for_excerpt.range;
5681 let buffer = &for_excerpt.buffer;
5682 let jump_anchor = range
5683 .primary
5684 .as_ref()
5685 .map_or(range.context.start, |primary| primary.start);
5686
5687 let excerpt_start = range.context.start;
5688 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5689 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5690 0
5691 } else {
5692 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5693 jump_position.row.saturating_sub(excerpt_start_point.row)
5694 };
5695
5696 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5697 .saturating_sub(
5698 snapshot
5699 .scroll_anchor
5700 .scroll_position(&snapshot.display_snapshot)
5701 .y as u32,
5702 );
5703
5704 JumpData::MultiBufferPoint {
5705 excerpt_id: for_excerpt.id,
5706 anchor: jump_anchor,
5707 position: jump_position,
5708 line_offset_from_top,
5709 }
5710}
5711
5712fn inline_completion_accept_indicator(
5713 label: impl Into<SharedString>,
5714 icon: Option<IconName>,
5715 previewing: bool,
5716 focus_handle: FocusHandle,
5717 window: &Window,
5718 cx: &App,
5719) -> AnyElement {
5720 let use_hardcoded_linux_preview_binding;
5721
5722 #[cfg(target_os = "macos")]
5723 {
5724 use_hardcoded_linux_preview_binding = false;
5725 }
5726
5727 #[cfg(not(target_os = "macos"))]
5728 {
5729 use_hardcoded_linux_preview_binding = previewing;
5730 }
5731
5732 let accept_keystroke = if use_hardcoded_linux_preview_binding {
5733 Keystroke {
5734 modifiers: Default::default(),
5735 key: "enter".to_string(),
5736 key_char: None,
5737 }
5738 } else {
5739 let bindings = window.bindings_for_action_in(&crate::AcceptInlineCompletion, &focus_handle);
5740 if let Some(keystroke) = bindings
5741 .last()
5742 .and_then(|binding| binding.keystrokes().first())
5743 {
5744 // TODO: clone unnecessary once `use_hardcoded_linux_preview_binding` is removed.
5745 keystroke.clone()
5746 } else {
5747 return div().into_any();
5748 }
5749 };
5750
5751 let accept_key = h_flex()
5752 .px_0p5()
5753 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5754 .text_size(TextSize::XSmall.rems(cx))
5755 .text_color(cx.theme().colors().text)
5756 .gap_1()
5757 .when(!previewing, |parent| {
5758 parent.children(ui::render_modifiers(
5759 &accept_keystroke.modifiers,
5760 PlatformStyle::platform(),
5761 Some(Color::Default),
5762 false,
5763 ))
5764 })
5765 .child(accept_keystroke.key.clone());
5766
5767 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5768
5769 h_flex()
5770 .py_0p5()
5771 .pl_1()
5772 .pr(padding_right)
5773 .gap_1()
5774 .bg(cx.theme().colors().text_accent.opacity(0.15))
5775 .border_1()
5776 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5777 .rounded_md()
5778 .shadow_sm()
5779 .child(accept_key)
5780 .child(Label::new(label).size(LabelSize::Small))
5781 .when_some(icon, |element, icon| {
5782 element.child(
5783 div()
5784 .mt(px(1.5))
5785 .child(Icon::new(icon).size(IconSize::Small)),
5786 )
5787 })
5788 .into_any()
5789}
5790
5791#[allow(clippy::too_many_arguments)]
5792fn prepaint_gutter_button(
5793 button: IconButton,
5794 row: DisplayRow,
5795 line_height: Pixels,
5796 gutter_dimensions: &GutterDimensions,
5797 scroll_pixel_position: gpui::Point<Pixels>,
5798 gutter_hitbox: &Hitbox,
5799 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5800 window: &mut Window,
5801 cx: &mut App,
5802) -> AnyElement {
5803 let mut button = button.into_any_element();
5804 let available_space = size(
5805 AvailableSpace::MinContent,
5806 AvailableSpace::Definite(line_height),
5807 );
5808 let indicator_size = button.layout_as_root(available_space, window, cx);
5809
5810 let blame_width = gutter_dimensions.git_blame_entries_width;
5811 let gutter_width = rows_with_hunk_bounds
5812 .get(&row)
5813 .map(|bounds| bounds.size.width);
5814 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5815
5816 let mut x = left_offset;
5817 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5818 - indicator_size.width
5819 - left_offset;
5820 x += available_width / 2.;
5821
5822 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5823 y += (line_height - indicator_size.height) / 2.;
5824
5825 button.prepaint_as_root(
5826 gutter_hitbox.origin + point(x, y),
5827 available_space,
5828 window,
5829 cx,
5830 );
5831 button
5832}
5833
5834fn render_inline_blame_entry(
5835 blame: &gpui::Entity<GitBlame>,
5836 blame_entry: BlameEntry,
5837 style: &EditorStyle,
5838 workspace: Option<WeakEntity<Workspace>>,
5839 cx: &mut App,
5840) -> AnyElement {
5841 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5842
5843 let author = blame_entry.author.as_deref().unwrap_or_default();
5844 let summary_enabled = ProjectSettings::get_global(cx)
5845 .git
5846 .show_inline_commit_summary();
5847
5848 let text = match blame_entry.summary.as_ref() {
5849 Some(summary) if summary_enabled => {
5850 format!("{}, {} - {}", author, relative_timestamp, summary)
5851 }
5852 _ => format!("{}, {}", author, relative_timestamp),
5853 };
5854
5855 let details = blame.read(cx).details_for_entry(&blame_entry);
5856
5857 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5858
5859 h_flex()
5860 .id("inline-blame")
5861 .w_full()
5862 .font_family(style.text.font().family)
5863 .text_color(cx.theme().status().hint)
5864 .line_height(style.text.line_height)
5865 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5866 .child(text)
5867 .gap_2()
5868 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5869 .into_any()
5870}
5871
5872fn render_blame_entry(
5873 ix: usize,
5874 blame: &gpui::Entity<GitBlame>,
5875 blame_entry: BlameEntry,
5876 style: &EditorStyle,
5877 last_used_color: &mut Option<(PlayerColor, Oid)>,
5878 editor: Entity<Editor>,
5879 cx: &mut App,
5880) -> AnyElement {
5881 let mut sha_color = cx
5882 .theme()
5883 .players()
5884 .color_for_participant(blame_entry.sha.into());
5885 // If the last color we used is the same as the one we get for this line, but
5886 // the commit SHAs are different, then we try again to get a different color.
5887 match *last_used_color {
5888 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5889 let index: u32 = blame_entry.sha.into();
5890 sha_color = cx.theme().players().color_for_participant(index + 1);
5891 }
5892 _ => {}
5893 };
5894 last_used_color.replace((sha_color, blame_entry.sha));
5895
5896 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5897
5898 let short_commit_id = blame_entry.sha.display_short();
5899
5900 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5901 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5902
5903 let details = blame.read(cx).details_for_entry(&blame_entry);
5904
5905 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5906
5907 let tooltip =
5908 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5909
5910 h_flex()
5911 .w_full()
5912 .justify_between()
5913 .font_family(style.text.font().family)
5914 .line_height(style.text.line_height)
5915 .id(("blame", ix))
5916 .text_color(cx.theme().status().hint)
5917 .pr_2()
5918 .gap_2()
5919 .child(
5920 h_flex()
5921 .items_center()
5922 .gap_2()
5923 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5924 .child(name),
5925 )
5926 .child(relative_timestamp)
5927 .on_mouse_down(MouseButton::Right, {
5928 let blame_entry = blame_entry.clone();
5929 let details = details.clone();
5930 move |event, window, cx| {
5931 deploy_blame_entry_context_menu(
5932 &blame_entry,
5933 details.as_ref(),
5934 editor.clone(),
5935 event.position,
5936 window,
5937 cx,
5938 );
5939 }
5940 })
5941 .hover(|style| style.bg(cx.theme().colors().element_hover))
5942 .when_some(
5943 details.and_then(|details| details.permalink),
5944 |this, url| {
5945 let url = url.clone();
5946 this.cursor_pointer().on_click(move |_, _, cx| {
5947 cx.stop_propagation();
5948 cx.open_url(url.as_str())
5949 })
5950 },
5951 )
5952 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5953 .into_any()
5954}
5955
5956fn deploy_blame_entry_context_menu(
5957 blame_entry: &BlameEntry,
5958 details: Option<&CommitDetails>,
5959 editor: Entity<Editor>,
5960 position: gpui::Point<Pixels>,
5961 window: &mut Window,
5962 cx: &mut App,
5963) {
5964 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
5965 let sha = format!("{}", blame_entry.sha);
5966 menu.on_blur_subscription(Subscription::new(|| {}))
5967 .entry("Copy commit SHA", None, move |_, cx| {
5968 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
5969 })
5970 .when_some(
5971 details.and_then(|details| details.permalink.clone()),
5972 |this, url| {
5973 this.entry("Open permalink", None, move |_, cx| {
5974 cx.open_url(url.as_str())
5975 })
5976 },
5977 )
5978 });
5979
5980 editor.update(cx, move |editor, cx| {
5981 editor.mouse_context_menu = Some(MouseContextMenu::new(
5982 MenuPosition::PinnedToScreen(position),
5983 context_menu,
5984 window,
5985 cx,
5986 ));
5987 cx.notify();
5988 });
5989}
5990
5991#[derive(Debug)]
5992pub(crate) struct LineWithInvisibles {
5993 fragments: SmallVec<[LineFragment; 1]>,
5994 invisibles: Vec<Invisible>,
5995 len: usize,
5996 width: Pixels,
5997 font_size: Pixels,
5998}
5999
6000#[allow(clippy::large_enum_variant)]
6001enum LineFragment {
6002 Text(ShapedLine),
6003 Element {
6004 element: Option<AnyElement>,
6005 size: Size<Pixels>,
6006 len: usize,
6007 },
6008}
6009
6010impl fmt::Debug for LineFragment {
6011 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6012 match self {
6013 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6014 LineFragment::Element { size, len, .. } => f
6015 .debug_struct("Element")
6016 .field("size", size)
6017 .field("len", len)
6018 .finish(),
6019 }
6020 }
6021}
6022
6023impl LineWithInvisibles {
6024 #[allow(clippy::too_many_arguments)]
6025 fn from_chunks<'a>(
6026 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6027 editor_style: &EditorStyle,
6028 max_line_len: usize,
6029 max_line_count: usize,
6030 editor_mode: EditorMode,
6031 text_width: Pixels,
6032 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6033 window: &mut Window,
6034 cx: &mut App,
6035 ) -> Vec<Self> {
6036 let text_style = &editor_style.text;
6037 let mut layouts = Vec::with_capacity(max_line_count);
6038 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6039 let mut line = String::new();
6040 let mut invisibles = Vec::new();
6041 let mut width = Pixels::ZERO;
6042 let mut len = 0;
6043 let mut styles = Vec::new();
6044 let mut non_whitespace_added = false;
6045 let mut row = 0;
6046 let mut line_exceeded_max_len = false;
6047 let font_size = text_style.font_size.to_pixels(window.rem_size());
6048
6049 let ellipsis = SharedString::from("⋯");
6050
6051 for highlighted_chunk in chunks.chain([HighlightedChunk {
6052 text: "\n",
6053 style: None,
6054 is_tab: false,
6055 replacement: None,
6056 }]) {
6057 if let Some(replacement) = highlighted_chunk.replacement {
6058 if !line.is_empty() {
6059 let shaped_line = window
6060 .text_system()
6061 .shape_line(line.clone().into(), font_size, &styles)
6062 .unwrap();
6063 width += shaped_line.width;
6064 len += shaped_line.len;
6065 fragments.push(LineFragment::Text(shaped_line));
6066 line.clear();
6067 styles.clear();
6068 }
6069
6070 match replacement {
6071 ChunkReplacement::Renderer(renderer) => {
6072 let available_width = if renderer.constrain_width {
6073 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6074 ellipsis.clone()
6075 } else {
6076 SharedString::from(Arc::from(highlighted_chunk.text))
6077 };
6078 let shaped_line = window
6079 .text_system()
6080 .shape_line(
6081 chunk,
6082 font_size,
6083 &[text_style.to_run(highlighted_chunk.text.len())],
6084 )
6085 .unwrap();
6086 AvailableSpace::Definite(shaped_line.width)
6087 } else {
6088 AvailableSpace::MinContent
6089 };
6090
6091 let mut element = (renderer.render)(&mut ChunkRendererContext {
6092 context: cx,
6093 window,
6094 max_width: text_width,
6095 });
6096 let line_height = text_style.line_height_in_pixels(window.rem_size());
6097 let size = element.layout_as_root(
6098 size(available_width, AvailableSpace::Definite(line_height)),
6099 window,
6100 cx,
6101 );
6102
6103 width += size.width;
6104 len += highlighted_chunk.text.len();
6105 fragments.push(LineFragment::Element {
6106 element: Some(element),
6107 size,
6108 len: highlighted_chunk.text.len(),
6109 });
6110 }
6111 ChunkReplacement::Str(x) => {
6112 let text_style = if let Some(style) = highlighted_chunk.style {
6113 Cow::Owned(text_style.clone().highlight(style))
6114 } else {
6115 Cow::Borrowed(text_style)
6116 };
6117
6118 let run = TextRun {
6119 len: x.len(),
6120 font: text_style.font(),
6121 color: text_style.color,
6122 background_color: text_style.background_color,
6123 underline: text_style.underline,
6124 strikethrough: text_style.strikethrough,
6125 };
6126 let line_layout = window
6127 .text_system()
6128 .shape_line(x, font_size, &[run])
6129 .unwrap()
6130 .with_len(highlighted_chunk.text.len());
6131
6132 width += line_layout.width;
6133 len += highlighted_chunk.text.len();
6134 fragments.push(LineFragment::Text(line_layout))
6135 }
6136 }
6137 } else {
6138 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6139 if ix > 0 {
6140 let shaped_line = window
6141 .text_system()
6142 .shape_line(line.clone().into(), font_size, &styles)
6143 .unwrap();
6144 width += shaped_line.width;
6145 len += shaped_line.len;
6146 fragments.push(LineFragment::Text(shaped_line));
6147 layouts.push(Self {
6148 width: mem::take(&mut width),
6149 len: mem::take(&mut len),
6150 fragments: mem::take(&mut fragments),
6151 invisibles: std::mem::take(&mut invisibles),
6152 font_size,
6153 });
6154
6155 line.clear();
6156 styles.clear();
6157 row += 1;
6158 line_exceeded_max_len = false;
6159 non_whitespace_added = false;
6160 if row == max_line_count {
6161 return layouts;
6162 }
6163 }
6164
6165 if !line_chunk.is_empty() && !line_exceeded_max_len {
6166 let text_style = if let Some(style) = highlighted_chunk.style {
6167 Cow::Owned(text_style.clone().highlight(style))
6168 } else {
6169 Cow::Borrowed(text_style)
6170 };
6171
6172 if line.len() + line_chunk.len() > max_line_len {
6173 let mut chunk_len = max_line_len - line.len();
6174 while !line_chunk.is_char_boundary(chunk_len) {
6175 chunk_len -= 1;
6176 }
6177 line_chunk = &line_chunk[..chunk_len];
6178 line_exceeded_max_len = true;
6179 }
6180
6181 styles.push(TextRun {
6182 len: line_chunk.len(),
6183 font: text_style.font(),
6184 color: text_style.color,
6185 background_color: text_style.background_color,
6186 underline: text_style.underline,
6187 strikethrough: text_style.strikethrough,
6188 });
6189
6190 if editor_mode == EditorMode::Full {
6191 // Line wrap pads its contents with fake whitespaces,
6192 // avoid printing them
6193 let is_soft_wrapped = is_row_soft_wrapped(row);
6194 if highlighted_chunk.is_tab {
6195 if non_whitespace_added || !is_soft_wrapped {
6196 invisibles.push(Invisible::Tab {
6197 line_start_offset: line.len(),
6198 line_end_offset: line.len() + line_chunk.len(),
6199 });
6200 }
6201 } else {
6202 invisibles.extend(line_chunk.char_indices().filter_map(
6203 |(index, c)| {
6204 let is_whitespace = c.is_whitespace();
6205 non_whitespace_added |= !is_whitespace;
6206 if is_whitespace
6207 && (non_whitespace_added || !is_soft_wrapped)
6208 {
6209 Some(Invisible::Whitespace {
6210 line_offset: line.len() + index,
6211 })
6212 } else {
6213 None
6214 }
6215 },
6216 ))
6217 }
6218 }
6219
6220 line.push_str(line_chunk);
6221 }
6222 }
6223 }
6224 }
6225
6226 layouts
6227 }
6228
6229 #[allow(clippy::too_many_arguments)]
6230 fn prepaint(
6231 &mut self,
6232 line_height: Pixels,
6233 scroll_pixel_position: gpui::Point<Pixels>,
6234 row: DisplayRow,
6235 content_origin: gpui::Point<Pixels>,
6236 line_elements: &mut SmallVec<[AnyElement; 1]>,
6237 window: &mut Window,
6238 cx: &mut App,
6239 ) {
6240 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6241 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6242 for fragment in &mut self.fragments {
6243 match fragment {
6244 LineFragment::Text(line) => {
6245 fragment_origin.x += line.width;
6246 }
6247 LineFragment::Element { element, size, .. } => {
6248 let mut element = element
6249 .take()
6250 .expect("you can't prepaint LineWithInvisibles twice");
6251
6252 // Center the element vertically within the line.
6253 let mut element_origin = fragment_origin;
6254 element_origin.y += (line_height - size.height) / 2.;
6255 element.prepaint_at(element_origin, window, cx);
6256 line_elements.push(element);
6257
6258 fragment_origin.x += size.width;
6259 }
6260 }
6261 }
6262 }
6263
6264 #[allow(clippy::too_many_arguments)]
6265 fn draw(
6266 &self,
6267 layout: &EditorLayout,
6268 row: DisplayRow,
6269 content_origin: gpui::Point<Pixels>,
6270 whitespace_setting: ShowWhitespaceSetting,
6271 selection_ranges: &[Range<DisplayPoint>],
6272 window: &mut Window,
6273 cx: &mut App,
6274 ) {
6275 let line_height = layout.position_map.line_height;
6276 let line_y = line_height
6277 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6278
6279 let mut fragment_origin =
6280 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6281
6282 for fragment in &self.fragments {
6283 match fragment {
6284 LineFragment::Text(line) => {
6285 line.paint(fragment_origin, line_height, window, cx)
6286 .log_err();
6287 fragment_origin.x += line.width;
6288 }
6289 LineFragment::Element { size, .. } => {
6290 fragment_origin.x += size.width;
6291 }
6292 }
6293 }
6294
6295 self.draw_invisibles(
6296 selection_ranges,
6297 layout,
6298 content_origin,
6299 line_y,
6300 row,
6301 line_height,
6302 whitespace_setting,
6303 window,
6304 cx,
6305 );
6306 }
6307
6308 #[allow(clippy::too_many_arguments)]
6309 fn draw_invisibles(
6310 &self,
6311 selection_ranges: &[Range<DisplayPoint>],
6312 layout: &EditorLayout,
6313 content_origin: gpui::Point<Pixels>,
6314 line_y: Pixels,
6315 row: DisplayRow,
6316 line_height: Pixels,
6317 whitespace_setting: ShowWhitespaceSetting,
6318 window: &mut Window,
6319 cx: &mut App,
6320 ) {
6321 let extract_whitespace_info = |invisible: &Invisible| {
6322 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6323 Invisible::Tab {
6324 line_start_offset,
6325 line_end_offset,
6326 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6327 Invisible::Whitespace { line_offset } => {
6328 (*line_offset, line_offset + 1, &layout.space_invisible)
6329 }
6330 };
6331
6332 let x_offset = self.x_for_index(token_offset);
6333 let invisible_offset =
6334 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6335 let origin = content_origin
6336 + gpui::point(
6337 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6338 line_y,
6339 );
6340
6341 (
6342 [token_offset, token_end_offset],
6343 Box::new(move |window: &mut Window, cx: &mut App| {
6344 invisible_symbol
6345 .paint(origin, line_height, window, cx)
6346 .log_err();
6347 }),
6348 )
6349 };
6350
6351 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6352 match whitespace_setting {
6353 ShowWhitespaceSetting::None => (),
6354 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6355 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6356 let invisible_point = DisplayPoint::new(row, start as u32);
6357 if !selection_ranges
6358 .iter()
6359 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6360 {
6361 return;
6362 }
6363
6364 paint(window, cx);
6365 }),
6366
6367 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6368 // - It is a tab
6369 // - It is adjacent to an edge (start or end)
6370 // - It is adjacent to a whitespace (left or right)
6371 ShowWhitespaceSetting::Boundary => {
6372 // 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
6373 // the above cases.
6374 // Note: We zip in the original `invisibles` to check for tab equality
6375 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6376 for (([start, end], paint), invisible) in
6377 invisible_iter.zip_eq(self.invisibles.iter())
6378 {
6379 let should_render = match (&last_seen, invisible) {
6380 (_, Invisible::Tab { .. }) => true,
6381 (Some((_, last_end, _)), _) => *last_end == start,
6382 _ => false,
6383 };
6384
6385 if should_render || start == 0 || end == self.len {
6386 paint(window, cx);
6387
6388 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6389 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6390 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6391 // Note that we need to make sure that the last one is actually adjacent
6392 if !should_render_last && last_end == start {
6393 paint_last(window, cx);
6394 }
6395 }
6396 }
6397
6398 // Manually render anything within a selection
6399 let invisible_point = DisplayPoint::new(row, start as u32);
6400 if selection_ranges.iter().any(|region| {
6401 region.start <= invisible_point && invisible_point < region.end
6402 }) {
6403 paint(window, cx);
6404 }
6405
6406 last_seen = Some((should_render, end, paint));
6407 }
6408 }
6409 }
6410 }
6411
6412 pub fn x_for_index(&self, index: usize) -> Pixels {
6413 let mut fragment_start_x = Pixels::ZERO;
6414 let mut fragment_start_index = 0;
6415
6416 for fragment in &self.fragments {
6417 match fragment {
6418 LineFragment::Text(shaped_line) => {
6419 let fragment_end_index = fragment_start_index + shaped_line.len;
6420 if index < fragment_end_index {
6421 return fragment_start_x
6422 + shaped_line.x_for_index(index - fragment_start_index);
6423 }
6424 fragment_start_x += shaped_line.width;
6425 fragment_start_index = fragment_end_index;
6426 }
6427 LineFragment::Element { len, size, .. } => {
6428 let fragment_end_index = fragment_start_index + len;
6429 if index < fragment_end_index {
6430 return fragment_start_x;
6431 }
6432 fragment_start_x += size.width;
6433 fragment_start_index = fragment_end_index;
6434 }
6435 }
6436 }
6437
6438 fragment_start_x
6439 }
6440
6441 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6442 let mut fragment_start_x = Pixels::ZERO;
6443 let mut fragment_start_index = 0;
6444
6445 for fragment in &self.fragments {
6446 match fragment {
6447 LineFragment::Text(shaped_line) => {
6448 let fragment_end_x = fragment_start_x + shaped_line.width;
6449 if x < fragment_end_x {
6450 return Some(
6451 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6452 );
6453 }
6454 fragment_start_x = fragment_end_x;
6455 fragment_start_index += shaped_line.len;
6456 }
6457 LineFragment::Element { len, size, .. } => {
6458 let fragment_end_x = fragment_start_x + size.width;
6459 if x < fragment_end_x {
6460 return Some(fragment_start_index);
6461 }
6462 fragment_start_index += len;
6463 fragment_start_x = fragment_end_x;
6464 }
6465 }
6466 }
6467
6468 None
6469 }
6470
6471 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6472 let mut fragment_start_index = 0;
6473
6474 for fragment in &self.fragments {
6475 match fragment {
6476 LineFragment::Text(shaped_line) => {
6477 let fragment_end_index = fragment_start_index + shaped_line.len;
6478 if index < fragment_end_index {
6479 return shaped_line.font_id_for_index(index - fragment_start_index);
6480 }
6481 fragment_start_index = fragment_end_index;
6482 }
6483 LineFragment::Element { len, .. } => {
6484 let fragment_end_index = fragment_start_index + len;
6485 if index < fragment_end_index {
6486 return None;
6487 }
6488 fragment_start_index = fragment_end_index;
6489 }
6490 }
6491 }
6492
6493 None
6494 }
6495}
6496
6497#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6498enum Invisible {
6499 /// A tab character
6500 ///
6501 /// A tab character is internally represented by spaces (configured by the user's tab width)
6502 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6503 /// adjacency checks.
6504 Tab {
6505 line_start_offset: usize,
6506 line_end_offset: usize,
6507 },
6508 Whitespace {
6509 line_offset: usize,
6510 },
6511}
6512
6513impl EditorElement {
6514 /// Returns the rem size to use when rendering the [`EditorElement`].
6515 ///
6516 /// This allows UI elements to scale based on the `buffer_font_size`.
6517 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6518 match self.editor.read(cx).mode {
6519 EditorMode::Full => {
6520 let buffer_font_size = self.style.text.font_size;
6521 match buffer_font_size {
6522 AbsoluteLength::Pixels(pixels) => {
6523 let rem_size_scale = {
6524 // Our default UI font size is 14px on a 16px base scale.
6525 // This means the default UI font size is 0.875rems.
6526 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6527
6528 // We then determine the delta between a single rem and the default font
6529 // size scale.
6530 let default_font_size_delta = 1. - default_font_size_scale;
6531
6532 // Finally, we add this delta to 1rem to get the scale factor that
6533 // should be used to scale up the UI.
6534 1. + default_font_size_delta
6535 };
6536
6537 Some(pixels * rem_size_scale)
6538 }
6539 AbsoluteLength::Rems(rems) => {
6540 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6541 }
6542 }
6543 }
6544 // We currently use single-line and auto-height editors in UI contexts,
6545 // so we don't want to scale everything with the buffer font size, as it
6546 // ends up looking off.
6547 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6548 }
6549 }
6550}
6551
6552impl Element for EditorElement {
6553 type RequestLayoutState = ();
6554 type PrepaintState = EditorLayout;
6555
6556 fn id(&self) -> Option<ElementId> {
6557 None
6558 }
6559
6560 fn request_layout(
6561 &mut self,
6562 _: Option<&GlobalElementId>,
6563 window: &mut Window,
6564 cx: &mut App,
6565 ) -> (gpui::LayoutId, ()) {
6566 let rem_size = self.rem_size(cx);
6567 window.with_rem_size(rem_size, |window| {
6568 self.editor.update(cx, |editor, cx| {
6569 editor.set_style(self.style.clone(), window, cx);
6570
6571 let layout_id = match editor.mode {
6572 EditorMode::SingleLine { auto_width } => {
6573 let rem_size = window.rem_size();
6574
6575 let height = self.style.text.line_height_in_pixels(rem_size);
6576 if auto_width {
6577 let editor_handle = cx.entity().clone();
6578 let style = self.style.clone();
6579 window.request_measured_layout(
6580 Style::default(),
6581 move |_, _, window, cx| {
6582 let editor_snapshot = editor_handle
6583 .update(cx, |editor, cx| editor.snapshot(window, cx));
6584 let line = Self::layout_lines(
6585 DisplayRow(0)..DisplayRow(1),
6586 &editor_snapshot,
6587 &style,
6588 px(f32::MAX),
6589 |_| false, // Single lines never soft wrap
6590 window,
6591 cx,
6592 )
6593 .pop()
6594 .unwrap();
6595
6596 let font_id =
6597 window.text_system().resolve_font(&style.text.font());
6598 let font_size =
6599 style.text.font_size.to_pixels(window.rem_size());
6600 let em_width =
6601 window.text_system().em_width(font_id, font_size).unwrap();
6602
6603 size(line.width + em_width, height)
6604 },
6605 )
6606 } else {
6607 let mut style = Style::default();
6608 style.size.height = height.into();
6609 style.size.width = relative(1.).into();
6610 window.request_layout(style, None, cx)
6611 }
6612 }
6613 EditorMode::AutoHeight { max_lines } => {
6614 let editor_handle = cx.entity().clone();
6615 let max_line_number_width =
6616 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6617 window.request_measured_layout(
6618 Style::default(),
6619 move |known_dimensions, available_space, window, cx| {
6620 editor_handle
6621 .update(cx, |editor, cx| {
6622 compute_auto_height_layout(
6623 editor,
6624 max_lines,
6625 max_line_number_width,
6626 known_dimensions,
6627 available_space.width,
6628 window,
6629 cx,
6630 )
6631 })
6632 .unwrap_or_default()
6633 },
6634 )
6635 }
6636 EditorMode::Full => {
6637 let mut style = Style::default();
6638 style.size.width = relative(1.).into();
6639 style.size.height = relative(1.).into();
6640 window.request_layout(style, None, cx)
6641 }
6642 };
6643
6644 (layout_id, ())
6645 })
6646 })
6647 }
6648
6649 fn prepaint(
6650 &mut self,
6651 _: Option<&GlobalElementId>,
6652 bounds: Bounds<Pixels>,
6653 _: &mut Self::RequestLayoutState,
6654 window: &mut Window,
6655 cx: &mut App,
6656 ) -> Self::PrepaintState {
6657 let text_style = TextStyleRefinement {
6658 font_size: Some(self.style.text.font_size),
6659 line_height: Some(self.style.text.line_height),
6660 ..Default::default()
6661 };
6662 let focus_handle = self.editor.focus_handle(cx);
6663 window.set_view_id(self.editor.entity_id());
6664 window.set_focus_handle(&focus_handle, cx);
6665
6666 let rem_size = self.rem_size(cx);
6667 window.with_rem_size(rem_size, |window| {
6668 window.with_text_style(Some(text_style), |window| {
6669 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6670 let mut snapshot = self
6671 .editor
6672 .update(cx, |editor, cx| editor.snapshot(window, cx));
6673 let style = self.style.clone();
6674
6675 let font_id = window.text_system().resolve_font(&style.text.font());
6676 let font_size = style.text.font_size.to_pixels(window.rem_size());
6677 let line_height = style.text.line_height_in_pixels(window.rem_size());
6678 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6679 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6680
6681 let letter_size = size(em_width, line_height);
6682
6683 let gutter_dimensions = snapshot
6684 .gutter_dimensions(
6685 font_id,
6686 font_size,
6687 self.max_line_number_width(&snapshot, window, cx),
6688 cx,
6689 )
6690 .unwrap_or_default();
6691 let text_width = bounds.size.width - gutter_dimensions.width;
6692
6693 let editor_width = text_width - gutter_dimensions.margin - em_width;
6694
6695 snapshot = self.editor.update(cx, |editor, cx| {
6696 editor.last_bounds = Some(bounds);
6697 editor.gutter_dimensions = gutter_dimensions;
6698 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6699
6700 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6701 snapshot
6702 } else {
6703 let wrap_width = match editor.soft_wrap_mode(cx) {
6704 SoftWrap::GitDiff => None,
6705 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6706 SoftWrap::EditorWidth => Some(editor_width),
6707 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6708 SoftWrap::Bounded(column) => {
6709 Some(editor_width.min(column as f32 * em_advance))
6710 }
6711 };
6712
6713 if editor.set_wrap_width(wrap_width, cx) {
6714 editor.snapshot(window, cx)
6715 } else {
6716 snapshot
6717 }
6718 }
6719 });
6720
6721 let wrap_guides = self
6722 .editor
6723 .read(cx)
6724 .wrap_guides(cx)
6725 .iter()
6726 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6727 .collect::<SmallVec<[_; 2]>>();
6728
6729 let hitbox = window.insert_hitbox(bounds, false);
6730 let gutter_hitbox =
6731 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6732 let text_hitbox = window.insert_hitbox(
6733 Bounds {
6734 origin: gutter_hitbox.top_right(),
6735 size: size(text_width, bounds.size.height),
6736 },
6737 false,
6738 );
6739 // Offset the content_bounds from the text_bounds by the gutter margin (which
6740 // is roughly half a character wide) to make hit testing work more like how we want.
6741 let content_origin =
6742 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6743
6744 let scrollbar_bounds =
6745 Bounds::from_corners(content_origin, bounds.bottom_right());
6746
6747 let height_in_lines = scrollbar_bounds.size.height / line_height;
6748
6749 // NOTE: The max row number in the current file, minus one
6750 let max_row = snapshot.max_point().row().as_f32();
6751
6752 // NOTE: The max scroll position for the top of the window
6753 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6754 (max_row - height_in_lines + 1.).max(0.)
6755 } else {
6756 let settings = EditorSettings::get_global(cx);
6757 match settings.scroll_beyond_last_line {
6758 ScrollBeyondLastLine::OnePage => max_row,
6759 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6760 ScrollBeyondLastLine::VerticalScrollMargin => {
6761 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6762 .max(0.)
6763 }
6764 }
6765 };
6766
6767 // TODO: Autoscrolling for both axes
6768 let mut autoscroll_request = None;
6769 let mut autoscroll_containing_element = false;
6770 let mut autoscroll_horizontally = false;
6771 self.editor.update(cx, |editor, cx| {
6772 autoscroll_request = editor.autoscroll_request();
6773 autoscroll_containing_element =
6774 autoscroll_request.is_some() || editor.has_pending_selection();
6775 // TODO: Is this horizontal or vertical?!
6776 autoscroll_horizontally = editor.autoscroll_vertically(
6777 bounds,
6778 line_height,
6779 max_scroll_top,
6780 window,
6781 cx,
6782 );
6783 snapshot = editor.snapshot(window, cx);
6784 });
6785
6786 let mut scroll_position = snapshot.scroll_position();
6787 // The scroll position is a fractional point, the whole number of which represents
6788 // the top of the window in terms of display rows.
6789 let start_row = DisplayRow(scroll_position.y as u32);
6790 let max_row = snapshot.max_point().row();
6791 let end_row = cmp::min(
6792 (scroll_position.y + height_in_lines).ceil() as u32,
6793 max_row.next_row().0,
6794 );
6795 let end_row = DisplayRow(end_row);
6796
6797 let row_infos = snapshot
6798 .row_infos(start_row)
6799 .take((start_row..end_row).len())
6800 .collect::<Vec<RowInfo>>();
6801 let is_row_soft_wrapped = |row: usize| {
6802 row_infos
6803 .get(row)
6804 .map_or(true, |info| info.buffer_row.is_none())
6805 };
6806
6807 let start_anchor = if start_row == Default::default() {
6808 Anchor::min()
6809 } else {
6810 snapshot.buffer_snapshot.anchor_before(
6811 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6812 )
6813 };
6814 let end_anchor = if end_row > max_row {
6815 Anchor::max()
6816 } else {
6817 snapshot.buffer_snapshot.anchor_before(
6818 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6819 )
6820 };
6821
6822 let mut highlighted_rows = self
6823 .editor
6824 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6825
6826 for (ix, row_info) in row_infos.iter().enumerate() {
6827 let color = match row_info.diff_status {
6828 Some(DiffHunkStatus::Added) => style.status.created_background,
6829 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6830 _ => continue,
6831 };
6832 highlighted_rows
6833 .entry(start_row + DisplayRow(ix as u32))
6834 .or_insert(color);
6835 }
6836
6837 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6838 start_anchor..end_anchor,
6839 &snapshot.display_snapshot,
6840 cx.theme().colors(),
6841 );
6842 let highlighted_gutter_ranges =
6843 self.editor.read(cx).gutter_highlights_in_range(
6844 start_anchor..end_anchor,
6845 &snapshot.display_snapshot,
6846 cx,
6847 );
6848
6849 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6850 start_anchor..end_anchor,
6851 &snapshot.display_snapshot,
6852 cx,
6853 );
6854
6855 let (local_selections, selected_buffer_ids): (
6856 Vec<Selection<Point>>,
6857 Vec<BufferId>,
6858 ) = self.editor.update(cx, |editor, cx| {
6859 let all_selections = editor.selections.all::<Point>(cx);
6860 let selected_buffer_ids = if editor.is_singleton(cx) {
6861 Vec::new()
6862 } else {
6863 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6864
6865 for selection in all_selections {
6866 for buffer_id in snapshot
6867 .buffer_snapshot
6868 .buffer_ids_for_range(selection.range())
6869 {
6870 if selected_buffer_ids.last() != Some(&buffer_id) {
6871 selected_buffer_ids.push(buffer_id);
6872 }
6873 }
6874 }
6875
6876 selected_buffer_ids
6877 };
6878
6879 let mut selections = editor
6880 .selections
6881 .disjoint_in_range(start_anchor..end_anchor, cx);
6882 selections.extend(editor.selections.pending(cx));
6883
6884 (selections, selected_buffer_ids)
6885 });
6886
6887 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6888 start_anchor,
6889 end_anchor,
6890 &local_selections,
6891 &snapshot,
6892 start_row,
6893 end_row,
6894 window,
6895 cx,
6896 );
6897
6898 let line_numbers = self.layout_line_numbers(
6899 Some(&gutter_hitbox),
6900 gutter_dimensions,
6901 line_height,
6902 scroll_position,
6903 start_row..end_row,
6904 &row_infos,
6905 newest_selection_head,
6906 &snapshot,
6907 window,
6908 cx,
6909 );
6910
6911 let mut crease_toggles =
6912 window.with_element_namespace("crease_toggles", |window| {
6913 self.layout_crease_toggles(
6914 start_row..end_row,
6915 &row_infos,
6916 &active_rows,
6917 &snapshot,
6918 window,
6919 cx,
6920 )
6921 });
6922 let crease_trailers =
6923 window.with_element_namespace("crease_trailers", |window| {
6924 self.layout_crease_trailers(
6925 row_infos.iter().copied(),
6926 &snapshot,
6927 window,
6928 cx,
6929 )
6930 });
6931
6932 let display_hunks = self.layout_gutter_diff_hunks(
6933 line_height,
6934 &gutter_hitbox,
6935 start_row..end_row,
6936 &snapshot,
6937 window,
6938 cx,
6939 );
6940
6941 let mut line_layouts = Self::layout_lines(
6942 start_row..end_row,
6943 &snapshot,
6944 &self.style,
6945 editor_width,
6946 is_row_soft_wrapped,
6947 window,
6948 cx,
6949 );
6950
6951 let longest_line_blame_width = self
6952 .editor
6953 .update(cx, |editor, cx| {
6954 if !editor.show_git_blame_inline {
6955 return None;
6956 }
6957 let blame = editor.blame.as_ref()?;
6958 let blame_entry = blame
6959 .update(cx, |blame, cx| {
6960 let row_infos =
6961 snapshot.row_infos(snapshot.longest_row()).next()?;
6962 blame.blame_for_rows(&[row_infos], cx).next()
6963 })
6964 .flatten()?;
6965 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
6966 let mut element = render_inline_blame_entry(
6967 blame,
6968 blame_entry,
6969 &style,
6970 workspace,
6971 cx,
6972 );
6973 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
6974 Some(
6975 element
6976 .layout_as_root(AvailableSpace::min_size(), window, cx)
6977 .width
6978 + inline_blame_padding,
6979 )
6980 })
6981 .unwrap_or(Pixels::ZERO);
6982
6983 let longest_line_width = layout_line(
6984 snapshot.longest_row(),
6985 &snapshot,
6986 &style,
6987 editor_width,
6988 is_row_soft_wrapped,
6989 window,
6990 cx,
6991 )
6992 .width;
6993
6994 let scrollbar_range_data = ScrollbarRangeData::new(
6995 scrollbar_bounds,
6996 letter_size,
6997 &snapshot,
6998 longest_line_width,
6999 longest_line_blame_width,
7000 &style,
7001 cx,
7002 );
7003
7004 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7005 let mut scroll_width = scroll_range_bounds.size.width;
7006
7007 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7008 snapshot.sticky_header_excerpt(start_row)
7009 } else {
7010 None
7011 };
7012 let sticky_header_excerpt_id =
7013 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7014
7015 let blocks = window.with_element_namespace("blocks", |window| {
7016 self.render_blocks(
7017 start_row..end_row,
7018 &snapshot,
7019 &hitbox,
7020 &text_hitbox,
7021 editor_width,
7022 &mut scroll_width,
7023 &gutter_dimensions,
7024 em_width,
7025 gutter_dimensions.full_width(),
7026 line_height,
7027 &line_layouts,
7028 &local_selections,
7029 &selected_buffer_ids,
7030 is_row_soft_wrapped,
7031 sticky_header_excerpt_id,
7032 window,
7033 cx,
7034 )
7035 });
7036 let mut blocks = match blocks {
7037 Ok(blocks) => blocks,
7038 Err(resized_blocks) => {
7039 self.editor.update(cx, |editor, cx| {
7040 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7041 });
7042 return self.prepaint(None, bounds, &mut (), window, cx);
7043 }
7044 };
7045
7046 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7047 window.with_element_namespace("blocks", |window| {
7048 self.layout_sticky_buffer_header(
7049 sticky_header_excerpt,
7050 scroll_position.y,
7051 line_height,
7052 &snapshot,
7053 &hitbox,
7054 &selected_buffer_ids,
7055 window,
7056 cx,
7057 )
7058 })
7059 });
7060
7061 let start_buffer_row =
7062 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7063 let end_buffer_row =
7064 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7065
7066 let scroll_max = point(
7067 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7068 max_row.as_f32(),
7069 );
7070
7071 self.editor.update(cx, |editor, cx| {
7072 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7073
7074 let autoscrolled = if autoscroll_horizontally {
7075 editor.autoscroll_horizontally(
7076 start_row,
7077 editor_width - (letter_size.width / 2.0),
7078 scroll_width,
7079 em_width,
7080 &line_layouts,
7081 cx,
7082 )
7083 } else {
7084 false
7085 };
7086
7087 if clamped || autoscrolled {
7088 snapshot = editor.snapshot(window, cx);
7089 scroll_position = snapshot.scroll_position();
7090 }
7091 });
7092
7093 let scroll_pixel_position = point(
7094 scroll_position.x * em_width,
7095 scroll_position.y * line_height,
7096 );
7097
7098 let indent_guides = self.layout_indent_guides(
7099 content_origin,
7100 text_hitbox.origin,
7101 start_buffer_row..end_buffer_row,
7102 scroll_pixel_position,
7103 line_height,
7104 &snapshot,
7105 window,
7106 cx,
7107 );
7108
7109 let crease_trailers =
7110 window.with_element_namespace("crease_trailers", |window| {
7111 self.prepaint_crease_trailers(
7112 crease_trailers,
7113 &line_layouts,
7114 line_height,
7115 content_origin,
7116 scroll_pixel_position,
7117 em_width,
7118 window,
7119 cx,
7120 )
7121 });
7122
7123 let mut inline_blame = None;
7124 if let Some(newest_selection_head) = newest_selection_head {
7125 let display_row = newest_selection_head.row();
7126 if (start_row..end_row).contains(&display_row) {
7127 let line_ix = display_row.minus(start_row) as usize;
7128 let row_info = &row_infos[line_ix];
7129 let line_layout = &line_layouts[line_ix];
7130 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7131 inline_blame = self.layout_inline_blame(
7132 display_row,
7133 row_info,
7134 line_layout,
7135 crease_trailer_layout,
7136 em_width,
7137 content_origin,
7138 scroll_pixel_position,
7139 line_height,
7140 window,
7141 cx,
7142 );
7143 }
7144 }
7145
7146 let blamed_display_rows = self.layout_blame_entries(
7147 &row_infos,
7148 em_width,
7149 scroll_position,
7150 line_height,
7151 &gutter_hitbox,
7152 gutter_dimensions.git_blame_entries_width,
7153 window,
7154 cx,
7155 );
7156
7157 let scroll_max = point(
7158 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7159 max_scroll_top,
7160 );
7161
7162 self.editor.update(cx, |editor, cx| {
7163 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7164
7165 let autoscrolled = if autoscroll_horizontally {
7166 editor.autoscroll_horizontally(
7167 start_row,
7168 editor_width - (letter_size.width / 2.0),
7169 scroll_width,
7170 em_width,
7171 &line_layouts,
7172 cx,
7173 )
7174 } else {
7175 false
7176 };
7177
7178 if clamped || autoscrolled {
7179 snapshot = editor.snapshot(window, cx);
7180 scroll_position = snapshot.scroll_position();
7181 }
7182 });
7183
7184 let line_elements = self.prepaint_lines(
7185 start_row,
7186 &mut line_layouts,
7187 line_height,
7188 scroll_pixel_position,
7189 content_origin,
7190 window,
7191 cx,
7192 );
7193
7194 let mut block_start_rows = HashSet::default();
7195
7196 window.with_element_namespace("blocks", |window| {
7197 self.layout_blocks(
7198 &mut blocks,
7199 &mut block_start_rows,
7200 &hitbox,
7201 line_height,
7202 scroll_pixel_position,
7203 window,
7204 cx,
7205 );
7206 });
7207
7208 let cursors = self.collect_cursors(&snapshot, cx);
7209 let visible_row_range = start_row..end_row;
7210 let non_visible_cursors = cursors
7211 .iter()
7212 .any(move |c| !visible_row_range.contains(&c.0.row()));
7213
7214 let visible_cursors = self.layout_visible_cursors(
7215 &snapshot,
7216 &selections,
7217 &block_start_rows,
7218 start_row..end_row,
7219 &line_layouts,
7220 &text_hitbox,
7221 content_origin,
7222 scroll_position,
7223 scroll_pixel_position,
7224 line_height,
7225 em_width,
7226 em_advance,
7227 autoscroll_containing_element,
7228 window,
7229 cx,
7230 );
7231
7232 let scrollbars_layout = self.layout_scrollbars(
7233 &snapshot,
7234 scrollbar_range_data,
7235 scroll_position,
7236 non_visible_cursors,
7237 window,
7238 cx,
7239 );
7240
7241 let gutter_settings = EditorSettings::get_global(cx).gutter;
7242
7243 let rows_with_hunk_bounds = display_hunks
7244 .iter()
7245 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7246 .fold(
7247 HashMap::default(),
7248 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7249 match hunk {
7250 DisplayDiffHunk::Folded { display_row } => {
7251 rows_with_hunk_bounds.insert(*display_row, bounds);
7252 }
7253 DisplayDiffHunk::Unfolded {
7254 display_row_range, ..
7255 } => {
7256 for display_row in display_row_range.iter_rows() {
7257 rows_with_hunk_bounds.insert(display_row, bounds);
7258 }
7259 }
7260 }
7261 rows_with_hunk_bounds
7262 },
7263 );
7264 let mut code_actions_indicator = None;
7265 if let Some(newest_selection_head) = newest_selection_head {
7266 let newest_selection_point =
7267 newest_selection_head.to_point(&snapshot.display_snapshot);
7268
7269 if (start_row..end_row).contains(&newest_selection_head.row()) {
7270 self.layout_cursor_popovers(
7271 line_height,
7272 &text_hitbox,
7273 content_origin,
7274 start_row,
7275 scroll_pixel_position,
7276 &line_layouts,
7277 newest_selection_head,
7278 newest_selection_point,
7279 &style,
7280 window,
7281 cx,
7282 );
7283
7284 let show_code_actions = snapshot
7285 .show_code_actions
7286 .unwrap_or(gutter_settings.code_actions);
7287 if show_code_actions {
7288 let newest_selection_point =
7289 newest_selection_head.to_point(&snapshot.display_snapshot);
7290 if !snapshot
7291 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7292 {
7293 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7294 MultiBufferRow(newest_selection_point.row),
7295 );
7296 if let Some((buffer, range)) = buffer {
7297 let buffer_id = buffer.remote_id();
7298 let row = range.start.row;
7299 let has_test_indicator = self
7300 .editor
7301 .read(cx)
7302 .tasks
7303 .contains_key(&(buffer_id, row));
7304
7305 if !has_test_indicator {
7306 code_actions_indicator = self
7307 .layout_code_actions_indicator(
7308 line_height,
7309 newest_selection_head,
7310 scroll_pixel_position,
7311 &gutter_dimensions,
7312 &gutter_hitbox,
7313 &rows_with_hunk_bounds,
7314 window,
7315 cx,
7316 );
7317 }
7318 }
7319 }
7320 }
7321 }
7322 }
7323
7324 self.layout_gutter_menu(
7325 line_height,
7326 &text_hitbox,
7327 content_origin,
7328 scroll_pixel_position,
7329 gutter_dimensions.width - gutter_dimensions.left_padding,
7330 window,
7331 cx,
7332 );
7333
7334 let test_indicators = if gutter_settings.runnables {
7335 self.layout_run_indicators(
7336 line_height,
7337 start_row..end_row,
7338 scroll_pixel_position,
7339 &gutter_dimensions,
7340 &gutter_hitbox,
7341 &rows_with_hunk_bounds,
7342 &snapshot,
7343 window,
7344 cx,
7345 )
7346 } else {
7347 Vec::new()
7348 };
7349
7350 self.layout_signature_help(
7351 &hitbox,
7352 content_origin,
7353 scroll_pixel_position,
7354 newest_selection_head,
7355 start_row,
7356 &line_layouts,
7357 line_height,
7358 em_width,
7359 window,
7360 cx,
7361 );
7362
7363 if !cx.has_active_drag() {
7364 self.layout_hover_popovers(
7365 &snapshot,
7366 &hitbox,
7367 &text_hitbox,
7368 start_row..end_row,
7369 content_origin,
7370 scroll_pixel_position,
7371 &line_layouts,
7372 line_height,
7373 em_width,
7374 window,
7375 cx,
7376 );
7377 }
7378
7379 let inline_completion_popover = self.layout_inline_completion_popover(
7380 &text_hitbox.bounds,
7381 &snapshot,
7382 start_row..end_row,
7383 scroll_position.y,
7384 scroll_position.y + height_in_lines,
7385 &line_layouts,
7386 line_height,
7387 scroll_pixel_position,
7388 newest_selection_head,
7389 editor_width,
7390 &style,
7391 window,
7392 cx,
7393 );
7394
7395 let mouse_context_menu = self.layout_mouse_context_menu(
7396 &snapshot,
7397 start_row..end_row,
7398 content_origin,
7399 window,
7400 cx,
7401 );
7402
7403 window.with_element_namespace("crease_toggles", |window| {
7404 self.prepaint_crease_toggles(
7405 &mut crease_toggles,
7406 line_height,
7407 &gutter_dimensions,
7408 gutter_settings,
7409 scroll_pixel_position,
7410 &gutter_hitbox,
7411 window,
7412 cx,
7413 )
7414 });
7415
7416 let invisible_symbol_font_size = font_size / 2.;
7417 let tab_invisible = window
7418 .text_system()
7419 .shape_line(
7420 "→".into(),
7421 invisible_symbol_font_size,
7422 &[TextRun {
7423 len: "→".len(),
7424 font: self.style.text.font(),
7425 color: cx.theme().colors().editor_invisible,
7426 background_color: None,
7427 underline: None,
7428 strikethrough: None,
7429 }],
7430 )
7431 .unwrap();
7432 let space_invisible = window
7433 .text_system()
7434 .shape_line(
7435 "•".into(),
7436 invisible_symbol_font_size,
7437 &[TextRun {
7438 len: "•".len(),
7439 font: self.style.text.font(),
7440 color: cx.theme().colors().editor_invisible,
7441 background_color: None,
7442 underline: None,
7443 strikethrough: None,
7444 }],
7445 )
7446 .unwrap();
7447
7448 let mode = snapshot.mode;
7449
7450 let position_map = Rc::new(PositionMap {
7451 size: bounds.size,
7452 scroll_pixel_position,
7453 scroll_max,
7454 line_layouts,
7455 line_height,
7456 em_width,
7457 em_advance,
7458 snapshot,
7459 gutter_hitbox: gutter_hitbox.clone(),
7460 text_hitbox: text_hitbox.clone(),
7461 });
7462
7463 self.editor.update(cx, |editor, _| {
7464 editor.last_position_map = Some(position_map.clone())
7465 });
7466
7467 let hunk_controls = self.layout_diff_hunk_controls(
7468 start_row..end_row,
7469 &row_infos,
7470 &text_hitbox,
7471 &position_map,
7472 newest_selection_head,
7473 line_height,
7474 scroll_pixel_position,
7475 &display_hunks,
7476 self.editor.clone(),
7477 window,
7478 cx,
7479 );
7480
7481 EditorLayout {
7482 mode,
7483 position_map,
7484 visible_display_row_range: start_row..end_row,
7485 wrap_guides,
7486 indent_guides,
7487 hitbox,
7488 gutter_hitbox,
7489 display_hunks,
7490 content_origin,
7491 scrollbars_layout,
7492 active_rows,
7493 highlighted_rows,
7494 highlighted_ranges,
7495 highlighted_gutter_ranges,
7496 redacted_ranges,
7497 line_elements,
7498 line_numbers,
7499 blamed_display_rows,
7500 inline_blame,
7501 blocks,
7502 cursors,
7503 visible_cursors,
7504 selections,
7505 inline_completion_popover,
7506 diff_hunk_controls: hunk_controls,
7507 mouse_context_menu,
7508 test_indicators,
7509 code_actions_indicator,
7510 crease_toggles,
7511 crease_trailers,
7512 tab_invisible,
7513 space_invisible,
7514 sticky_buffer_header,
7515 }
7516 })
7517 })
7518 })
7519 }
7520
7521 fn paint(
7522 &mut self,
7523 _: Option<&GlobalElementId>,
7524 bounds: Bounds<gpui::Pixels>,
7525 _: &mut Self::RequestLayoutState,
7526 layout: &mut Self::PrepaintState,
7527 window: &mut Window,
7528 cx: &mut App,
7529 ) {
7530 let focus_handle = self.editor.focus_handle(cx);
7531 let key_context = self
7532 .editor
7533 .update(cx, |editor, cx| editor.key_context(window, cx));
7534
7535 window.set_key_context(key_context);
7536 window.handle_input(
7537 &focus_handle,
7538 ElementInputHandler::new(bounds, self.editor.clone()),
7539 cx,
7540 );
7541 self.register_actions(window, cx);
7542 self.register_key_listeners(window, cx, layout);
7543
7544 let text_style = TextStyleRefinement {
7545 font_size: Some(self.style.text.font_size),
7546 line_height: Some(self.style.text.line_height),
7547 ..Default::default()
7548 };
7549 let rem_size = self.rem_size(cx);
7550 window.with_rem_size(rem_size, |window| {
7551 window.with_text_style(Some(text_style), |window| {
7552 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7553 self.paint_mouse_listeners(layout, window, cx);
7554 self.paint_background(layout, window, cx);
7555 self.paint_indent_guides(layout, window, cx);
7556
7557 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7558 self.paint_blamed_display_rows(layout, window, cx);
7559 self.paint_line_numbers(layout, window, cx);
7560 }
7561
7562 self.paint_text(layout, window, cx);
7563
7564 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7565 self.paint_gutter_highlights(layout, window, cx);
7566 self.paint_gutter_indicators(layout, window, cx);
7567 }
7568
7569 if !layout.blocks.is_empty() {
7570 window.with_element_namespace("blocks", |window| {
7571 self.paint_blocks(layout, window, cx);
7572 });
7573 }
7574
7575 window.with_element_namespace("blocks", |window| {
7576 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7577 sticky_header.paint(window, cx)
7578 }
7579 });
7580
7581 self.paint_scrollbars(layout, window, cx);
7582 self.paint_inline_completion_popover(layout, window, cx);
7583 self.paint_mouse_context_menu(layout, window, cx);
7584 });
7585 })
7586 })
7587 }
7588}
7589
7590pub(super) fn gutter_bounds(
7591 editor_bounds: Bounds<Pixels>,
7592 gutter_dimensions: GutterDimensions,
7593) -> Bounds<Pixels> {
7594 Bounds {
7595 origin: editor_bounds.origin,
7596 size: size(gutter_dimensions.width, editor_bounds.size.height),
7597 }
7598}
7599
7600struct ScrollbarRangeData {
7601 scrollbar_bounds: Bounds<Pixels>,
7602 scroll_range: Bounds<Pixels>,
7603 letter_size: Size<Pixels>,
7604}
7605
7606impl ScrollbarRangeData {
7607 pub fn new(
7608 scrollbar_bounds: Bounds<Pixels>,
7609 letter_size: Size<Pixels>,
7610 snapshot: &EditorSnapshot,
7611 longest_line_width: Pixels,
7612 longest_line_blame_width: Pixels,
7613 style: &EditorStyle,
7614
7615 cx: &mut App,
7616 ) -> ScrollbarRangeData {
7617 // TODO: Simplify this function down, it requires a lot of parameters
7618 let max_row = snapshot.max_point().row();
7619 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7620
7621 let scrollbar_width = style.scrollbar_width;
7622
7623 let settings = EditorSettings::get_global(cx);
7624 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7625 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7626 ScrollBeyondLastLine::Off => px(1.),
7627 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7628 };
7629
7630 let overscroll = size(
7631 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7632 letter_size.height * scroll_beyond_last_line,
7633 );
7634
7635 let scroll_range = Bounds {
7636 origin: scrollbar_bounds.origin,
7637 size: text_bounds_size + overscroll,
7638 };
7639
7640 ScrollbarRangeData {
7641 scrollbar_bounds,
7642 scroll_range,
7643 letter_size,
7644 }
7645 }
7646}
7647
7648impl IntoElement for EditorElement {
7649 type Element = Self;
7650
7651 fn into_element(self) -> Self::Element {
7652 self
7653 }
7654}
7655
7656pub struct EditorLayout {
7657 position_map: Rc<PositionMap>,
7658 hitbox: Hitbox,
7659 gutter_hitbox: Hitbox,
7660 content_origin: gpui::Point<Pixels>,
7661 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7662 mode: EditorMode,
7663 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7664 indent_guides: Option<Vec<IndentGuideLayout>>,
7665 visible_display_row_range: Range<DisplayRow>,
7666 active_rows: BTreeMap<DisplayRow, bool>,
7667 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7668 line_elements: SmallVec<[AnyElement; 1]>,
7669 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7670 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7671 blamed_display_rows: Option<Vec<AnyElement>>,
7672 inline_blame: Option<AnyElement>,
7673 blocks: Vec<BlockLayout>,
7674 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7675 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7676 redacted_ranges: Vec<Range<DisplayPoint>>,
7677 cursors: Vec<(DisplayPoint, Hsla)>,
7678 visible_cursors: Vec<CursorLayout>,
7679 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7680 code_actions_indicator: Option<AnyElement>,
7681 test_indicators: Vec<AnyElement>,
7682 crease_toggles: Vec<Option<AnyElement>>,
7683 diff_hunk_controls: Vec<AnyElement>,
7684 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7685 inline_completion_popover: Option<AnyElement>,
7686 mouse_context_menu: Option<AnyElement>,
7687 tab_invisible: ShapedLine,
7688 space_invisible: ShapedLine,
7689 sticky_buffer_header: Option<AnyElement>,
7690}
7691
7692impl EditorLayout {
7693 fn line_end_overshoot(&self) -> Pixels {
7694 0.15 * self.position_map.line_height
7695 }
7696}
7697
7698struct LineNumberLayout {
7699 shaped_line: ShapedLine,
7700 hitbox: Option<Hitbox>,
7701 display_row: DisplayRow,
7702}
7703
7704struct ColoredRange<T> {
7705 start: T,
7706 end: T,
7707 color: Hsla,
7708}
7709
7710#[derive(Clone)]
7711struct ScrollbarLayout {
7712 hitbox: Hitbox,
7713 visible_range: Range<f32>,
7714 visible: bool,
7715 text_unit_size: Pixels,
7716 thumb_size: Pixels,
7717 axis: Axis,
7718}
7719
7720impl ScrollbarLayout {
7721 const BORDER_WIDTH: Pixels = px(1.0);
7722 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7723 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7724 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7725
7726 fn thumb_bounds(&self) -> Bounds<Pixels> {
7727 match self.axis {
7728 Axis::Vertical => {
7729 let thumb_top = self.y_for_row(self.visible_range.start);
7730 let thumb_bottom = thumb_top + self.thumb_size;
7731 Bounds::from_corners(
7732 point(self.hitbox.left(), thumb_top),
7733 point(self.hitbox.right(), thumb_bottom),
7734 )
7735 }
7736 Axis::Horizontal => {
7737 let thumb_left =
7738 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7739 let thumb_right = thumb_left + self.thumb_size;
7740 Bounds::from_corners(
7741 point(thumb_left, self.hitbox.top()),
7742 point(thumb_right, self.hitbox.bottom()),
7743 )
7744 }
7745 }
7746 }
7747
7748 fn y_for_row(&self, row: f32) -> Pixels {
7749 self.hitbox.top() + row * self.text_unit_size
7750 }
7751
7752 fn marker_quads_for_ranges(
7753 &self,
7754 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7755 column: Option<usize>,
7756 ) -> Vec<PaintQuad> {
7757 struct MinMax {
7758 min: Pixels,
7759 max: Pixels,
7760 }
7761 let (x_range, height_limit) = if let Some(column) = column {
7762 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7763 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7764 let end = start + column_width;
7765 (
7766 Range { start, end },
7767 MinMax {
7768 min: Self::MIN_MARKER_HEIGHT,
7769 max: px(f32::MAX),
7770 },
7771 )
7772 } else {
7773 (
7774 Range {
7775 start: Self::BORDER_WIDTH,
7776 end: self.hitbox.size.width,
7777 },
7778 MinMax {
7779 min: Self::LINE_MARKER_HEIGHT,
7780 max: Self::LINE_MARKER_HEIGHT,
7781 },
7782 )
7783 };
7784
7785 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7786 let mut pixel_ranges = row_ranges
7787 .into_iter()
7788 .map(|range| {
7789 let start_y = row_to_y(range.start);
7790 let end_y = row_to_y(range.end)
7791 + self
7792 .text_unit_size
7793 .max(height_limit.min)
7794 .min(height_limit.max);
7795 ColoredRange {
7796 start: start_y,
7797 end: end_y,
7798 color: range.color,
7799 }
7800 })
7801 .peekable();
7802
7803 let mut quads = Vec::new();
7804 while let Some(mut pixel_range) = pixel_ranges.next() {
7805 while let Some(next_pixel_range) = pixel_ranges.peek() {
7806 if pixel_range.end >= next_pixel_range.start - px(1.0)
7807 && pixel_range.color == next_pixel_range.color
7808 {
7809 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7810 pixel_ranges.next();
7811 } else {
7812 break;
7813 }
7814 }
7815
7816 let bounds = Bounds::from_corners(
7817 point(x_range.start, pixel_range.start),
7818 point(x_range.end, pixel_range.end),
7819 );
7820 quads.push(quad(
7821 bounds,
7822 Corners::default(),
7823 pixel_range.color,
7824 Edges::default(),
7825 Hsla::transparent_black(),
7826 ));
7827 }
7828
7829 quads
7830 }
7831}
7832
7833struct CreaseTrailerLayout {
7834 element: AnyElement,
7835 bounds: Bounds<Pixels>,
7836}
7837
7838pub(crate) struct PositionMap {
7839 pub size: Size<Pixels>,
7840 pub line_height: Pixels,
7841 pub scroll_pixel_position: gpui::Point<Pixels>,
7842 pub scroll_max: gpui::Point<f32>,
7843 pub em_width: Pixels,
7844 pub em_advance: Pixels,
7845 pub line_layouts: Vec<LineWithInvisibles>,
7846 pub snapshot: EditorSnapshot,
7847 pub text_hitbox: Hitbox,
7848 pub gutter_hitbox: Hitbox,
7849}
7850
7851#[derive(Debug, Copy, Clone)]
7852pub struct PointForPosition {
7853 pub previous_valid: DisplayPoint,
7854 pub next_valid: DisplayPoint,
7855 pub exact_unclipped: DisplayPoint,
7856 pub column_overshoot_after_line_end: u32,
7857}
7858
7859impl PointForPosition {
7860 pub fn as_valid(&self) -> Option<DisplayPoint> {
7861 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7862 Some(self.previous_valid)
7863 } else {
7864 None
7865 }
7866 }
7867}
7868
7869impl PositionMap {
7870 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7871 let text_bounds = self.text_hitbox.bounds;
7872 let scroll_position = self.snapshot.scroll_position();
7873 let position = position - text_bounds.origin;
7874 let y = position.y.max(px(0.)).min(self.size.height);
7875 let x = position.x + (scroll_position.x * self.em_width);
7876 let row = ((y / self.line_height) + scroll_position.y) as u32;
7877
7878 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7879 .line_layouts
7880 .get(row as usize - scroll_position.y as usize)
7881 {
7882 if let Some(ix) = line.index_for_x(x) {
7883 (ix as u32, px(0.))
7884 } else {
7885 (line.len as u32, px(0.).max(x - line.width))
7886 }
7887 } else {
7888 (0, x)
7889 };
7890
7891 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7892 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7893 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7894
7895 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7896 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7897 PointForPosition {
7898 previous_valid,
7899 next_valid,
7900 exact_unclipped,
7901 column_overshoot_after_line_end,
7902 }
7903 }
7904}
7905
7906struct BlockLayout {
7907 id: BlockId,
7908 row: Option<DisplayRow>,
7909 element: AnyElement,
7910 available_space: Size<AvailableSpace>,
7911 style: BlockStyle,
7912}
7913
7914fn layout_line(
7915 row: DisplayRow,
7916 snapshot: &EditorSnapshot,
7917 style: &EditorStyle,
7918 text_width: Pixels,
7919 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7920 window: &mut Window,
7921 cx: &mut App,
7922) -> LineWithInvisibles {
7923 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7924 LineWithInvisibles::from_chunks(
7925 chunks,
7926 &style,
7927 MAX_LINE_LEN,
7928 1,
7929 snapshot.mode,
7930 text_width,
7931 is_row_soft_wrapped,
7932 window,
7933 cx,
7934 )
7935 .pop()
7936 .unwrap()
7937}
7938
7939#[derive(Debug)]
7940pub struct IndentGuideLayout {
7941 origin: gpui::Point<Pixels>,
7942 length: Pixels,
7943 single_indent_width: Pixels,
7944 depth: u32,
7945 active: bool,
7946 settings: IndentGuideSettings,
7947}
7948
7949pub struct CursorLayout {
7950 origin: gpui::Point<Pixels>,
7951 block_width: Pixels,
7952 line_height: Pixels,
7953 color: Hsla,
7954 shape: CursorShape,
7955 block_text: Option<ShapedLine>,
7956 cursor_name: Option<AnyElement>,
7957}
7958
7959#[derive(Debug)]
7960pub struct CursorName {
7961 string: SharedString,
7962 color: Hsla,
7963 is_top_row: bool,
7964}
7965
7966impl CursorLayout {
7967 pub fn new(
7968 origin: gpui::Point<Pixels>,
7969 block_width: Pixels,
7970 line_height: Pixels,
7971 color: Hsla,
7972 shape: CursorShape,
7973 block_text: Option<ShapedLine>,
7974 ) -> CursorLayout {
7975 CursorLayout {
7976 origin,
7977 block_width,
7978 line_height,
7979 color,
7980 shape,
7981 block_text,
7982 cursor_name: None,
7983 }
7984 }
7985
7986 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7987 Bounds {
7988 origin: self.origin + origin,
7989 size: size(self.block_width, self.line_height),
7990 }
7991 }
7992
7993 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
7994 match self.shape {
7995 CursorShape::Bar => Bounds {
7996 origin: self.origin + origin,
7997 size: size(px(2.0), self.line_height),
7998 },
7999 CursorShape::Block | CursorShape::Hollow => Bounds {
8000 origin: self.origin + origin,
8001 size: size(self.block_width, self.line_height),
8002 },
8003 CursorShape::Underline => Bounds {
8004 origin: self.origin
8005 + origin
8006 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8007 size: size(self.block_width, px(2.0)),
8008 },
8009 }
8010 }
8011
8012 pub fn layout(
8013 &mut self,
8014 origin: gpui::Point<Pixels>,
8015 cursor_name: Option<CursorName>,
8016 window: &mut Window,
8017 cx: &mut App,
8018 ) {
8019 if let Some(cursor_name) = cursor_name {
8020 let bounds = self.bounds(origin);
8021 let text_size = self.line_height / 1.5;
8022
8023 let name_origin = if cursor_name.is_top_row {
8024 point(bounds.right() - px(1.), bounds.top())
8025 } else {
8026 match self.shape {
8027 CursorShape::Bar => point(
8028 bounds.right() - px(2.),
8029 bounds.top() - text_size / 2. - px(1.),
8030 ),
8031 _ => point(
8032 bounds.right() - px(1.),
8033 bounds.top() - text_size / 2. - px(1.),
8034 ),
8035 }
8036 };
8037 let mut name_element = div()
8038 .bg(self.color)
8039 .text_size(text_size)
8040 .px_0p5()
8041 .line_height(text_size + px(2.))
8042 .text_color(cursor_name.color)
8043 .child(cursor_name.string.clone())
8044 .into_any_element();
8045
8046 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8047
8048 self.cursor_name = Some(name_element);
8049 }
8050 }
8051
8052 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8053 let bounds = self.bounds(origin);
8054
8055 //Draw background or border quad
8056 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8057 outline(bounds, self.color)
8058 } else {
8059 fill(bounds, self.color)
8060 };
8061
8062 if let Some(name) = &mut self.cursor_name {
8063 name.paint(window, cx);
8064 }
8065
8066 window.paint_quad(cursor);
8067
8068 if let Some(block_text) = &self.block_text {
8069 block_text
8070 .paint(self.origin + origin, self.line_height, window, cx)
8071 .log_err();
8072 }
8073 }
8074
8075 pub fn shape(&self) -> CursorShape {
8076 self.shape
8077 }
8078}
8079
8080#[derive(Debug)]
8081pub struct HighlightedRange {
8082 pub start_y: Pixels,
8083 pub line_height: Pixels,
8084 pub lines: Vec<HighlightedRangeLine>,
8085 pub color: Hsla,
8086 pub corner_radius: Pixels,
8087}
8088
8089#[derive(Debug)]
8090pub struct HighlightedRangeLine {
8091 pub start_x: Pixels,
8092 pub end_x: Pixels,
8093}
8094
8095impl HighlightedRange {
8096 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8097 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8098 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8099 self.paint_lines(
8100 self.start_y + self.line_height,
8101 &self.lines[1..],
8102 bounds,
8103 window,
8104 );
8105 } else {
8106 self.paint_lines(self.start_y, &self.lines, bounds, window);
8107 }
8108 }
8109
8110 fn paint_lines(
8111 &self,
8112 start_y: Pixels,
8113 lines: &[HighlightedRangeLine],
8114 _bounds: Bounds<Pixels>,
8115 window: &mut Window,
8116 ) {
8117 if lines.is_empty() {
8118 return;
8119 }
8120
8121 let first_line = lines.first().unwrap();
8122 let last_line = lines.last().unwrap();
8123
8124 let first_top_left = point(first_line.start_x, start_y);
8125 let first_top_right = point(first_line.end_x, start_y);
8126
8127 let curve_height = point(Pixels::ZERO, self.corner_radius);
8128 let curve_width = |start_x: Pixels, end_x: Pixels| {
8129 let max = (end_x - start_x) / 2.;
8130 let width = if max < self.corner_radius {
8131 max
8132 } else {
8133 self.corner_radius
8134 };
8135
8136 point(width, Pixels::ZERO)
8137 };
8138
8139 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8140 let mut path = gpui::Path::new(first_top_right - top_curve_width);
8141 path.curve_to(first_top_right + curve_height, first_top_right);
8142
8143 let mut iter = lines.iter().enumerate().peekable();
8144 while let Some((ix, line)) = iter.next() {
8145 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8146
8147 if let Some((_, next_line)) = iter.peek() {
8148 let next_top_right = point(next_line.end_x, bottom_right.y);
8149
8150 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8151 Ordering::Equal => {
8152 path.line_to(bottom_right);
8153 }
8154 Ordering::Less => {
8155 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8156 path.line_to(bottom_right - curve_height);
8157 if self.corner_radius > Pixels::ZERO {
8158 path.curve_to(bottom_right - curve_width, bottom_right);
8159 }
8160 path.line_to(next_top_right + curve_width);
8161 if self.corner_radius > Pixels::ZERO {
8162 path.curve_to(next_top_right + curve_height, next_top_right);
8163 }
8164 }
8165 Ordering::Greater => {
8166 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8167 path.line_to(bottom_right - curve_height);
8168 if self.corner_radius > Pixels::ZERO {
8169 path.curve_to(bottom_right + curve_width, bottom_right);
8170 }
8171 path.line_to(next_top_right - curve_width);
8172 if self.corner_radius > Pixels::ZERO {
8173 path.curve_to(next_top_right + curve_height, next_top_right);
8174 }
8175 }
8176 }
8177 } else {
8178 let curve_width = curve_width(line.start_x, line.end_x);
8179 path.line_to(bottom_right - curve_height);
8180 if self.corner_radius > Pixels::ZERO {
8181 path.curve_to(bottom_right - curve_width, bottom_right);
8182 }
8183
8184 let bottom_left = point(line.start_x, bottom_right.y);
8185 path.line_to(bottom_left + curve_width);
8186 if self.corner_radius > Pixels::ZERO {
8187 path.curve_to(bottom_left - curve_height, bottom_left);
8188 }
8189 }
8190 }
8191
8192 if first_line.start_x > last_line.start_x {
8193 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8194 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8195 path.line_to(second_top_left + curve_height);
8196 if self.corner_radius > Pixels::ZERO {
8197 path.curve_to(second_top_left + curve_width, second_top_left);
8198 }
8199 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8200 path.line_to(first_bottom_left - curve_width);
8201 if self.corner_radius > Pixels::ZERO {
8202 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
8203 }
8204 }
8205
8206 path.line_to(first_top_left + curve_height);
8207 if self.corner_radius > Pixels::ZERO {
8208 path.curve_to(first_top_left + top_curve_width, first_top_left);
8209 }
8210 path.line_to(first_top_right - top_curve_width);
8211
8212 window.paint_path(path, self.color);
8213 }
8214}
8215
8216enum CursorPopoverType {
8217 CodeContextMenu,
8218 EditPrediction,
8219}
8220
8221pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8222 (delta.pow(1.5) / 100.0).into()
8223}
8224
8225fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8226 (delta.pow(1.2) / 300.0).into()
8227}
8228
8229pub fn register_action<T: Action>(
8230 editor: &Entity<Editor>,
8231 window: &mut Window,
8232 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8233) {
8234 let editor = editor.clone();
8235 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8236 let action = action.downcast_ref().unwrap();
8237 if phase == DispatchPhase::Bubble {
8238 editor.update(cx, |editor, cx| {
8239 listener(editor, action, window, cx);
8240 })
8241 }
8242 })
8243}
8244
8245fn compute_auto_height_layout(
8246 editor: &mut Editor,
8247 max_lines: usize,
8248 max_line_number_width: Pixels,
8249 known_dimensions: Size<Option<Pixels>>,
8250 available_width: AvailableSpace,
8251 window: &mut Window,
8252 cx: &mut Context<Editor>,
8253) -> Option<Size<Pixels>> {
8254 let width = known_dimensions.width.or({
8255 if let AvailableSpace::Definite(available_width) = available_width {
8256 Some(available_width)
8257 } else {
8258 None
8259 }
8260 })?;
8261 if let Some(height) = known_dimensions.height {
8262 return Some(size(width, height));
8263 }
8264
8265 let style = editor.style.as_ref().unwrap();
8266 let font_id = window.text_system().resolve_font(&style.text.font());
8267 let font_size = style.text.font_size.to_pixels(window.rem_size());
8268 let line_height = style.text.line_height_in_pixels(window.rem_size());
8269 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8270
8271 let mut snapshot = editor.snapshot(window, cx);
8272 let gutter_dimensions = snapshot
8273 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8274 .unwrap_or_default();
8275
8276 editor.gutter_dimensions = gutter_dimensions;
8277 let text_width = width - gutter_dimensions.width;
8278 let overscroll = size(em_width, px(0.));
8279
8280 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8281 if editor.set_wrap_width(Some(editor_width), cx) {
8282 snapshot = editor.snapshot(window, cx);
8283 }
8284
8285 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8286 let height = scroll_height
8287 .max(line_height)
8288 .min(line_height * max_lines as f32);
8289
8290 Some(size(width, height))
8291}
8292
8293#[cfg(test)]
8294mod tests {
8295 use super::*;
8296 use crate::{
8297 display_map::{BlockPlacement, BlockProperties},
8298 editor_tests::{init_test, update_test_language_settings},
8299 Editor, MultiBuffer,
8300 };
8301 use gpui::{TestAppContext, VisualTestContext};
8302 use language::language_settings;
8303 use log::info;
8304 use similar::DiffableStr;
8305 use std::num::NonZeroU32;
8306 use util::test::sample_text;
8307
8308 #[gpui::test]
8309 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8310 init_test(cx, |_| {});
8311 let window = cx.add_window(|window, cx| {
8312 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8313 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8314 });
8315
8316 let editor = window.root(cx).unwrap();
8317 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8318 let line_height = window
8319 .update(cx, |_, window, _| {
8320 style.text.line_height_in_pixels(window.rem_size())
8321 })
8322 .unwrap();
8323 let element = EditorElement::new(&editor, style);
8324 let snapshot = window
8325 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8326 .unwrap();
8327
8328 let layouts = cx
8329 .update_window(*window, |_, window, cx| {
8330 element.layout_line_numbers(
8331 None,
8332 GutterDimensions {
8333 left_padding: Pixels::ZERO,
8334 right_padding: Pixels::ZERO,
8335 width: px(30.0),
8336 margin: Pixels::ZERO,
8337 git_blame_entries_width: None,
8338 },
8339 line_height,
8340 gpui::Point::default(),
8341 DisplayRow(0)..DisplayRow(6),
8342 &(0..6)
8343 .map(|row| RowInfo {
8344 buffer_row: Some(row),
8345 ..Default::default()
8346 })
8347 .collect::<Vec<_>>(),
8348 Some(DisplayPoint::new(DisplayRow(0), 0)),
8349 &snapshot,
8350 window,
8351 cx,
8352 )
8353 })
8354 .unwrap();
8355 assert_eq!(layouts.len(), 6);
8356
8357 let relative_rows = window
8358 .update(cx, |editor, window, cx| {
8359 let snapshot = editor.snapshot(window, cx);
8360 element.calculate_relative_line_numbers(
8361 &snapshot,
8362 &(DisplayRow(0)..DisplayRow(6)),
8363 Some(DisplayRow(3)),
8364 )
8365 })
8366 .unwrap();
8367 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8368 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8369 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8370 // current line has no relative number
8371 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8372 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8373
8374 // works if cursor is before screen
8375 let relative_rows = window
8376 .update(cx, |editor, window, cx| {
8377 let snapshot = editor.snapshot(window, cx);
8378 element.calculate_relative_line_numbers(
8379 &snapshot,
8380 &(DisplayRow(3)..DisplayRow(6)),
8381 Some(DisplayRow(1)),
8382 )
8383 })
8384 .unwrap();
8385 assert_eq!(relative_rows.len(), 3);
8386 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8387 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8388 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8389
8390 // works if cursor is after screen
8391 let relative_rows = window
8392 .update(cx, |editor, window, cx| {
8393 let snapshot = editor.snapshot(window, cx);
8394 element.calculate_relative_line_numbers(
8395 &snapshot,
8396 &(DisplayRow(0)..DisplayRow(3)),
8397 Some(DisplayRow(6)),
8398 )
8399 })
8400 .unwrap();
8401 assert_eq!(relative_rows.len(), 3);
8402 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8403 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8404 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8405 }
8406
8407 #[gpui::test]
8408 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8409 init_test(cx, |_| {});
8410
8411 let window = cx.add_window(|window, cx| {
8412 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8413 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8414 });
8415 let cx = &mut VisualTestContext::from_window(*window, cx);
8416 let editor = window.root(cx).unwrap();
8417 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8418
8419 window
8420 .update(cx, |editor, window, cx| {
8421 editor.cursor_shape = CursorShape::Block;
8422 editor.change_selections(None, window, cx, |s| {
8423 s.select_ranges([
8424 Point::new(0, 0)..Point::new(1, 0),
8425 Point::new(3, 2)..Point::new(3, 3),
8426 Point::new(5, 6)..Point::new(6, 0),
8427 ]);
8428 });
8429 })
8430 .unwrap();
8431
8432 let (_, state) = cx.draw(
8433 point(px(500.), px(500.)),
8434 size(px(500.), px(500.)),
8435 |_, _| EditorElement::new(&editor, style),
8436 );
8437
8438 assert_eq!(state.selections.len(), 1);
8439 let local_selections = &state.selections[0].1;
8440 assert_eq!(local_selections.len(), 3);
8441 // moves cursor back one line
8442 assert_eq!(
8443 local_selections[0].head,
8444 DisplayPoint::new(DisplayRow(0), 6)
8445 );
8446 assert_eq!(
8447 local_selections[0].range,
8448 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8449 );
8450
8451 // moves cursor back one column
8452 assert_eq!(
8453 local_selections[1].range,
8454 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8455 );
8456 assert_eq!(
8457 local_selections[1].head,
8458 DisplayPoint::new(DisplayRow(3), 2)
8459 );
8460
8461 // leaves cursor on the max point
8462 assert_eq!(
8463 local_selections[2].range,
8464 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8465 );
8466 assert_eq!(
8467 local_selections[2].head,
8468 DisplayPoint::new(DisplayRow(6), 0)
8469 );
8470
8471 // active lines does not include 1 (even though the range of the selection does)
8472 assert_eq!(
8473 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8474 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8475 );
8476
8477 // multi-buffer support
8478 // in DisplayPoint coordinates, this is what we're dealing with:
8479 // 0: [[file
8480 // 1: header
8481 // 2: section]]
8482 // 3: aaaaaa
8483 // 4: bbbbbb
8484 // 5: cccccc
8485 // 6:
8486 // 7: [[footer]]
8487 // 8: [[header]]
8488 // 9: ffffff
8489 // 10: gggggg
8490 // 11: hhhhhh
8491 // 12:
8492 // 13: [[footer]]
8493 // 14: [[file
8494 // 15: header
8495 // 16: section]]
8496 // 17: bbbbbb
8497 // 18: cccccc
8498 // 19: dddddd
8499 // 20: [[footer]]
8500 let window = cx.add_window(|window, cx| {
8501 let buffer = MultiBuffer::build_multi(
8502 [
8503 (
8504 &(sample_text(8, 6, 'a') + "\n"),
8505 vec![
8506 Point::new(0, 0)..Point::new(3, 0),
8507 Point::new(4, 0)..Point::new(7, 0),
8508 ],
8509 ),
8510 (
8511 &(sample_text(8, 6, 'a') + "\n"),
8512 vec![Point::new(1, 0)..Point::new(3, 0)],
8513 ),
8514 ],
8515 cx,
8516 );
8517 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8518 });
8519 let editor = window.root(cx).unwrap();
8520 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8521 let _state = window.update(cx, |editor, window, cx| {
8522 editor.cursor_shape = CursorShape::Block;
8523 editor.change_selections(None, window, cx, |s| {
8524 s.select_display_ranges([
8525 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8526 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8527 ]);
8528 });
8529 });
8530
8531 let (_, state) = cx.draw(
8532 point(px(500.), px(500.)),
8533 size(px(500.), px(500.)),
8534 |_, _| EditorElement::new(&editor, style),
8535 );
8536 assert_eq!(state.selections.len(), 1);
8537 let local_selections = &state.selections[0].1;
8538 assert_eq!(local_selections.len(), 2);
8539
8540 // moves cursor on excerpt boundary back a line
8541 // and doesn't allow selection to bleed through
8542 assert_eq!(
8543 local_selections[0].range,
8544 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8545 );
8546 assert_eq!(
8547 local_selections[0].head,
8548 DisplayPoint::new(DisplayRow(6), 0)
8549 );
8550 // moves cursor on buffer boundary back two lines
8551 // and doesn't allow selection to bleed through
8552 assert_eq!(
8553 local_selections[1].range,
8554 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8555 );
8556 assert_eq!(
8557 local_selections[1].head,
8558 DisplayPoint::new(DisplayRow(12), 0)
8559 );
8560 }
8561
8562 #[gpui::test]
8563 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8564 init_test(cx, |_| {});
8565
8566 let window = cx.add_window(|window, cx| {
8567 let buffer = MultiBuffer::build_simple("", cx);
8568 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8569 });
8570 let cx = &mut VisualTestContext::from_window(*window, cx);
8571 let editor = window.root(cx).unwrap();
8572 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8573 window
8574 .update(cx, |editor, window, cx| {
8575 editor.set_placeholder_text("hello", cx);
8576 editor.insert_blocks(
8577 [BlockProperties {
8578 style: BlockStyle::Fixed,
8579 placement: BlockPlacement::Above(Anchor::min()),
8580 height: 3,
8581 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8582 priority: 0,
8583 }],
8584 None,
8585 cx,
8586 );
8587
8588 // Blur the editor so that it displays placeholder text.
8589 window.blur();
8590 })
8591 .unwrap();
8592
8593 let (_, state) = cx.draw(
8594 point(px(500.), px(500.)),
8595 size(px(500.), px(500.)),
8596 |_, _| EditorElement::new(&editor, style),
8597 );
8598 assert_eq!(state.position_map.line_layouts.len(), 4);
8599 assert_eq!(state.line_numbers.len(), 1);
8600 assert_eq!(
8601 state
8602 .line_numbers
8603 .get(&MultiBufferRow(0))
8604 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8605 Some("1")
8606 );
8607 }
8608
8609 #[gpui::test]
8610 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8611 const TAB_SIZE: u32 = 4;
8612
8613 let input_text = "\t \t|\t| a b";
8614 let expected_invisibles = vec![
8615 Invisible::Tab {
8616 line_start_offset: 0,
8617 line_end_offset: TAB_SIZE as usize,
8618 },
8619 Invisible::Whitespace {
8620 line_offset: TAB_SIZE as usize,
8621 },
8622 Invisible::Tab {
8623 line_start_offset: TAB_SIZE as usize + 1,
8624 line_end_offset: TAB_SIZE as usize * 2,
8625 },
8626 Invisible::Tab {
8627 line_start_offset: TAB_SIZE as usize * 2 + 1,
8628 line_end_offset: TAB_SIZE as usize * 3,
8629 },
8630 Invisible::Whitespace {
8631 line_offset: TAB_SIZE as usize * 3 + 1,
8632 },
8633 Invisible::Whitespace {
8634 line_offset: TAB_SIZE as usize * 3 + 3,
8635 },
8636 ];
8637 assert_eq!(
8638 expected_invisibles.len(),
8639 input_text
8640 .chars()
8641 .filter(|initial_char| initial_char.is_whitespace())
8642 .count(),
8643 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8644 );
8645
8646 for show_line_numbers in [true, false] {
8647 init_test(cx, |s| {
8648 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8649 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8650 });
8651
8652 let actual_invisibles = collect_invisibles_from_new_editor(
8653 cx,
8654 EditorMode::Full,
8655 input_text,
8656 px(500.0),
8657 show_line_numbers,
8658 );
8659
8660 assert_eq!(expected_invisibles, actual_invisibles);
8661 }
8662 }
8663
8664 #[gpui::test]
8665 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8666 init_test(cx, |s| {
8667 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8668 s.defaults.tab_size = NonZeroU32::new(4);
8669 });
8670
8671 for editor_mode_without_invisibles in [
8672 EditorMode::SingleLine { auto_width: false },
8673 EditorMode::AutoHeight { max_lines: 100 },
8674 ] {
8675 for show_line_numbers in [true, false] {
8676 let invisibles = collect_invisibles_from_new_editor(
8677 cx,
8678 editor_mode_without_invisibles,
8679 "\t\t\t| | a b",
8680 px(500.0),
8681 show_line_numbers,
8682 );
8683 assert!(invisibles.is_empty(),
8684 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8685 }
8686 }
8687 }
8688
8689 #[gpui::test]
8690 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8691 let tab_size = 4;
8692 let input_text = "a\tbcd ".repeat(9);
8693 let repeated_invisibles = [
8694 Invisible::Tab {
8695 line_start_offset: 1,
8696 line_end_offset: tab_size as usize,
8697 },
8698 Invisible::Whitespace {
8699 line_offset: tab_size as usize + 3,
8700 },
8701 Invisible::Whitespace {
8702 line_offset: tab_size as usize + 4,
8703 },
8704 Invisible::Whitespace {
8705 line_offset: tab_size as usize + 5,
8706 },
8707 Invisible::Whitespace {
8708 line_offset: tab_size as usize + 6,
8709 },
8710 Invisible::Whitespace {
8711 line_offset: tab_size as usize + 7,
8712 },
8713 ];
8714 let expected_invisibles = std::iter::once(repeated_invisibles)
8715 .cycle()
8716 .take(9)
8717 .flatten()
8718 .collect::<Vec<_>>();
8719 assert_eq!(
8720 expected_invisibles.len(),
8721 input_text
8722 .chars()
8723 .filter(|initial_char| initial_char.is_whitespace())
8724 .count(),
8725 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8726 );
8727 info!("Expected invisibles: {expected_invisibles:?}");
8728
8729 init_test(cx, |_| {});
8730
8731 // Put the same string with repeating whitespace pattern into editors of various size,
8732 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8733 let resize_step = 10.0;
8734 let mut editor_width = 200.0;
8735 while editor_width <= 1000.0 {
8736 for show_line_numbers in [true, false] {
8737 update_test_language_settings(cx, |s| {
8738 s.defaults.tab_size = NonZeroU32::new(tab_size);
8739 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8740 s.defaults.preferred_line_length = Some(editor_width as u32);
8741 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8742 });
8743
8744 let actual_invisibles = collect_invisibles_from_new_editor(
8745 cx,
8746 EditorMode::Full,
8747 &input_text,
8748 px(editor_width),
8749 show_line_numbers,
8750 );
8751
8752 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8753 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8754 let mut i = 0;
8755 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8756 i = actual_index;
8757 match expected_invisibles.get(i) {
8758 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8759 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8760 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8761 _ => {
8762 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8763 }
8764 },
8765 None => {
8766 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8767 }
8768 }
8769 }
8770 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8771 assert!(
8772 missing_expected_invisibles.is_empty(),
8773 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8774 );
8775
8776 editor_width += resize_step;
8777 }
8778 }
8779 }
8780
8781 fn collect_invisibles_from_new_editor(
8782 cx: &mut TestAppContext,
8783 editor_mode: EditorMode,
8784 input_text: &str,
8785 editor_width: Pixels,
8786 show_line_numbers: bool,
8787 ) -> Vec<Invisible> {
8788 info!(
8789 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8790 editor_width.0
8791 );
8792 let window = cx.add_window(|window, cx| {
8793 let buffer = MultiBuffer::build_simple(input_text, cx);
8794 Editor::new(editor_mode, buffer, None, true, window, cx)
8795 });
8796 let cx = &mut VisualTestContext::from_window(*window, cx);
8797 let editor = window.root(cx).unwrap();
8798
8799 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8800 window
8801 .update(cx, |editor, _, cx| {
8802 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8803 editor.set_wrap_width(Some(editor_width), cx);
8804 editor.set_show_line_numbers(show_line_numbers, cx);
8805 })
8806 .unwrap();
8807 let (_, state) = cx.draw(
8808 point(px(500.), px(500.)),
8809 size(px(500.), px(500.)),
8810 |_, _| EditorElement::new(&editor, style),
8811 );
8812 state
8813 .position_map
8814 .line_layouts
8815 .iter()
8816 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8817 .cloned()
8818 .collect()
8819 }
8820}
8821
8822fn diff_hunk_controls(
8823 row: u32,
8824 hunk_range: Range<Anchor>,
8825 line_height: Pixels,
8826 editor: &Entity<Editor>,
8827 cx: &mut App,
8828) -> AnyElement {
8829 h_flex()
8830 .h(line_height)
8831 .mr_1()
8832 .gap_1()
8833 .px_1()
8834 .pb_1()
8835 .border_b_1()
8836 .border_color(cx.theme().colors().border_variant)
8837 .rounded_b_lg()
8838 .bg(cx.theme().colors().editor_background)
8839 .gap_1()
8840 .child(
8841 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8842 .shape(IconButtonShape::Square)
8843 .icon_size(IconSize::Small)
8844 // .disabled(!has_multiple_hunks)
8845 .tooltip({
8846 let focus_handle = editor.focus_handle(cx);
8847 move |window, cx| {
8848 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8849 }
8850 })
8851 .on_click({
8852 let editor = editor.clone();
8853 move |_event, window, cx| {
8854 editor.update(cx, |editor, cx| {
8855 let snapshot = editor.snapshot(window, cx);
8856 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8857 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8858 editor.expand_selected_diff_hunks(cx);
8859 });
8860 }
8861 }),
8862 )
8863 .child(
8864 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8865 .shape(IconButtonShape::Square)
8866 .icon_size(IconSize::Small)
8867 // .disabled(!has_multiple_hunks)
8868 .tooltip({
8869 let focus_handle = editor.focus_handle(cx);
8870 move |window, cx| {
8871 Tooltip::for_action_in(
8872 "Previous Hunk",
8873 &GoToPrevHunk,
8874 &focus_handle,
8875 window,
8876 cx,
8877 )
8878 }
8879 })
8880 .on_click({
8881 let editor = editor.clone();
8882 move |_event, window, cx| {
8883 editor.update(cx, |editor, cx| {
8884 let snapshot = editor.snapshot(window, cx);
8885 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8886 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8887 editor.expand_selected_diff_hunks(cx);
8888 });
8889 }
8890 }),
8891 )
8892 .child(
8893 IconButton::new("discard", IconName::Undo)
8894 .shape(IconButtonShape::Square)
8895 .icon_size(IconSize::Small)
8896 .tooltip({
8897 let focus_handle = editor.focus_handle(cx);
8898 move |window, cx| {
8899 Tooltip::for_action_in(
8900 "Discard Hunk",
8901 &RevertSelectedHunks,
8902 &focus_handle,
8903 window,
8904 cx,
8905 )
8906 }
8907 })
8908 .on_click({
8909 let editor = editor.clone();
8910 move |_event, window, cx| {
8911 editor.update(cx, |editor, cx| {
8912 let snapshot = editor.snapshot(window, cx);
8913 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8914 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8915 });
8916 }
8917 }),
8918 )
8919 .into_any_element()
8920}