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 diff::DiffHunkStatus;
30use file_icons::FileIcons;
31use git::{blame::BlameEntry, Oid};
32use gpui::{
33 anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px, quad,
34 relative, size, svg, transparent_black, Action, AnyElement, App, AvailableSpace, Axis, Bounds,
35 ClickEvent, ClipboardItem, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase,
36 Edges, Element, ElementInputHandler, Entity, FocusHandle, Focusable as _, FontId,
37 GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Keystroke, Length,
38 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
39 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
40 StatefulInteractiveElement, Style, Styled, Subscription, TextRun, TextStyleRefinement,
41 WeakEntity, Window,
42};
43use itertools::Itertools;
44use language::{
45 language_settings::{
46 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings,
47 ShowWhitespaceSetting,
48 },
49 ChunkRendererContext,
50};
51use lsp::DiagnosticSeverity;
52use multi_buffer::{
53 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow,
54 RowInfo, ToOffset,
55};
56use project::project_settings::{GitGutterSetting, ProjectSettings};
57use settings::Settings;
58use smallvec::{smallvec, SmallVec};
59use std::{
60 any::TypeId,
61 borrow::Cow,
62 cmp::{self, Ordering},
63 fmt::{self, Write},
64 iter, mem,
65 ops::{Deref, Range},
66 rc::Rc,
67 sync::Arc,
68};
69use sum_tree::Bias;
70use text::BufferId;
71use theme::{ActiveTheme, Appearance, PlayerColor};
72use ui::{
73 h_flex, prelude::*, ButtonLike, ButtonStyle, ContextMenu, IconButtonShape, KeyBinding, Tooltip,
74 POPOVER_Y_PADDING,
75};
76use unicode_segmentation::UnicodeSegmentation;
77use util::{RangeExt, ResultExt};
78use workspace::{item::Item, notifications::NotifyTaskExt, Workspace};
79
80const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
81
82#[derive(Debug, Clone, PartialEq, Eq)]
83enum DisplayDiffHunk {
84 Folded {
85 display_row: DisplayRow,
86 },
87
88 Unfolded {
89 diff_base_byte_range: Range<usize>,
90 display_row_range: Range<DisplayRow>,
91 multi_buffer_range: Range<Anchor>,
92 status: DiffHunkStatus,
93 },
94}
95
96struct SelectionLayout {
97 head: DisplayPoint,
98 cursor_shape: CursorShape,
99 is_newest: bool,
100 is_local: bool,
101 range: Range<DisplayPoint>,
102 active_rows: Range<DisplayRow>,
103 user_name: Option<SharedString>,
104}
105
106impl SelectionLayout {
107 fn new<T: ToPoint + ToDisplayPoint + Clone>(
108 selection: Selection<T>,
109 line_mode: bool,
110 cursor_shape: CursorShape,
111 map: &DisplaySnapshot,
112 is_newest: bool,
113 is_local: bool,
114 user_name: Option<SharedString>,
115 ) -> Self {
116 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
117 let display_selection = point_selection.map(|p| p.to_display_point(map));
118 let mut range = display_selection.range();
119 let mut head = display_selection.head();
120 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
121 ..map.next_line_boundary(point_selection.end).1.row();
122
123 // vim visual line mode
124 if line_mode {
125 let point_range = map.expand_to_line(point_selection.range());
126 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
127 }
128
129 // any vim visual mode (including line mode)
130 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
131 && !range.is_empty()
132 && !selection.reversed
133 {
134 if head.column() > 0 {
135 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
136 } else if head.row().0 > 0 && head != map.max_point() {
137 head = map.clip_point(
138 DisplayPoint::new(
139 head.row().previous_row(),
140 map.line_len(head.row().previous_row()),
141 ),
142 Bias::Left,
143 );
144 // updating range.end is a no-op unless you're cursor is
145 // on the newline containing a multi-buffer divider
146 // in which case the clip_point may have moved the head up
147 // an additional row.
148 range.end = DisplayPoint::new(head.row().next_row(), 0);
149 active_rows.end = head.row();
150 }
151 }
152
153 Self {
154 head,
155 cursor_shape,
156 is_newest,
157 is_local,
158 range,
159 active_rows,
160 user_name,
161 }
162 }
163}
164
165pub struct EditorElement {
166 editor: Entity<Editor>,
167 style: EditorStyle,
168}
169
170type DisplayRowDelta = u32;
171
172impl EditorElement {
173 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
174
175 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
176 Self {
177 editor: editor.clone(),
178 style,
179 }
180 }
181
182 fn register_actions(&self, window: &mut Window, cx: &mut App) {
183 let editor = &self.editor;
184 editor.update(cx, |editor, cx| {
185 for action in editor.editor_actions.borrow().values() {
186 (action)(window, cx)
187 }
188 });
189
190 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
191 crate::clangd_ext::apply_related_actions(editor, window, cx);
192 register_action(editor, window, Editor::open_context_menu);
193 register_action(editor, window, Editor::move_left);
194 register_action(editor, window, Editor::move_right);
195 register_action(editor, window, Editor::move_down);
196 register_action(editor, window, Editor::move_down_by_lines);
197 register_action(editor, window, Editor::select_down_by_lines);
198 register_action(editor, window, Editor::move_up);
199 register_action(editor, window, Editor::move_up_by_lines);
200 register_action(editor, window, Editor::select_up_by_lines);
201 register_action(editor, window, Editor::select_page_down);
202 register_action(editor, window, Editor::select_page_up);
203 register_action(editor, window, Editor::cancel);
204 register_action(editor, window, Editor::newline);
205 register_action(editor, window, Editor::newline_above);
206 register_action(editor, window, Editor::newline_below);
207 register_action(editor, window, Editor::backspace);
208 register_action(editor, window, Editor::delete);
209 register_action(editor, window, Editor::tab);
210 register_action(editor, window, Editor::tab_prev);
211 register_action(editor, window, Editor::indent);
212 register_action(editor, window, Editor::outdent);
213 register_action(editor, window, Editor::autoindent);
214 register_action(editor, window, Editor::delete_line);
215 register_action(editor, window, Editor::join_lines);
216 register_action(editor, window, Editor::sort_lines_case_sensitive);
217 register_action(editor, window, Editor::sort_lines_case_insensitive);
218 register_action(editor, window, Editor::reverse_lines);
219 register_action(editor, window, Editor::shuffle_lines);
220 register_action(editor, window, Editor::convert_to_upper_case);
221 register_action(editor, window, Editor::convert_to_lower_case);
222 register_action(editor, window, Editor::convert_to_title_case);
223 register_action(editor, window, Editor::convert_to_snake_case);
224 register_action(editor, window, Editor::convert_to_kebab_case);
225 register_action(editor, window, Editor::convert_to_upper_camel_case);
226 register_action(editor, window, Editor::convert_to_lower_camel_case);
227 register_action(editor, window, Editor::convert_to_opposite_case);
228 register_action(editor, window, Editor::delete_to_previous_word_start);
229 register_action(editor, window, Editor::delete_to_previous_subword_start);
230 register_action(editor, window, Editor::delete_to_next_word_end);
231 register_action(editor, window, Editor::delete_to_next_subword_end);
232 register_action(editor, window, Editor::delete_to_beginning_of_line);
233 register_action(editor, window, Editor::delete_to_end_of_line);
234 register_action(editor, window, Editor::cut_to_end_of_line);
235 register_action(editor, window, Editor::duplicate_line_up);
236 register_action(editor, window, Editor::duplicate_line_down);
237 register_action(editor, window, Editor::duplicate_selection);
238 register_action(editor, window, Editor::move_line_up);
239 register_action(editor, window, Editor::move_line_down);
240 register_action(editor, window, Editor::transpose);
241 register_action(editor, window, Editor::rewrap);
242 register_action(editor, window, Editor::cut);
243 register_action(editor, window, Editor::kill_ring_cut);
244 register_action(editor, window, Editor::kill_ring_yank);
245 register_action(editor, window, Editor::copy);
246 register_action(editor, window, Editor::paste);
247 register_action(editor, window, Editor::undo);
248 register_action(editor, window, Editor::redo);
249 register_action(editor, window, Editor::move_page_up);
250 register_action(editor, window, Editor::move_page_down);
251 register_action(editor, window, Editor::next_screen);
252 register_action(editor, window, Editor::scroll_cursor_top);
253 register_action(editor, window, Editor::scroll_cursor_center);
254 register_action(editor, window, Editor::scroll_cursor_bottom);
255 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
256 register_action(editor, window, |editor, _: &LineDown, window, cx| {
257 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
258 });
259 register_action(editor, window, |editor, _: &LineUp, window, cx| {
260 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
261 });
262 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
263 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
264 });
265 register_action(
266 editor,
267 window,
268 |editor, HandleInput(text): &HandleInput, window, cx| {
269 if text.is_empty() {
270 return;
271 }
272 editor.handle_input(text, window, cx);
273 },
274 );
275 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
276 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
277 });
278 register_action(editor, window, |editor, _: &PageDown, window, cx| {
279 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
280 });
281 register_action(editor, window, |editor, _: &PageUp, window, cx| {
282 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
283 });
284 register_action(editor, window, Editor::move_to_previous_word_start);
285 register_action(editor, window, Editor::move_to_previous_subword_start);
286 register_action(editor, window, Editor::move_to_next_word_end);
287 register_action(editor, window, Editor::move_to_next_subword_end);
288 register_action(editor, window, Editor::move_to_beginning_of_line);
289 register_action(editor, window, Editor::move_to_end_of_line);
290 register_action(editor, window, Editor::move_to_start_of_paragraph);
291 register_action(editor, window, Editor::move_to_end_of_paragraph);
292 register_action(editor, window, Editor::move_to_beginning);
293 register_action(editor, window, Editor::move_to_end);
294 register_action(editor, window, Editor::select_up);
295 register_action(editor, window, Editor::select_down);
296 register_action(editor, window, Editor::select_left);
297 register_action(editor, window, Editor::select_right);
298 register_action(editor, window, Editor::select_to_previous_word_start);
299 register_action(editor, window, Editor::select_to_previous_subword_start);
300 register_action(editor, window, Editor::select_to_next_word_end);
301 register_action(editor, window, Editor::select_to_next_subword_end);
302 register_action(editor, window, Editor::select_to_beginning_of_line);
303 register_action(editor, window, Editor::select_to_end_of_line);
304 register_action(editor, window, Editor::select_to_start_of_paragraph);
305 register_action(editor, window, Editor::select_to_end_of_paragraph);
306 register_action(editor, window, Editor::select_to_beginning);
307 register_action(editor, window, Editor::select_to_end);
308 register_action(editor, window, Editor::select_all);
309 register_action(editor, window, |editor, action, window, cx| {
310 editor.select_all_matches(action, window, cx).log_err();
311 });
312 register_action(editor, window, Editor::select_line);
313 register_action(editor, window, Editor::split_selection_into_lines);
314 register_action(editor, window, Editor::add_selection_above);
315 register_action(editor, window, Editor::add_selection_below);
316 register_action(editor, window, |editor, action, window, cx| {
317 editor.select_next(action, window, cx).log_err();
318 });
319 register_action(editor, window, |editor, action, window, cx| {
320 editor.select_previous(action, window, cx).log_err();
321 });
322 register_action(editor, window, Editor::toggle_comments);
323 register_action(editor, window, Editor::select_larger_syntax_node);
324 register_action(editor, window, Editor::select_smaller_syntax_node);
325 register_action(editor, window, Editor::select_enclosing_symbol);
326 register_action(editor, window, Editor::move_to_enclosing_bracket);
327 register_action(editor, window, Editor::undo_selection);
328 register_action(editor, window, Editor::redo_selection);
329 if !editor.read(cx).is_singleton(cx) {
330 register_action(editor, window, Editor::expand_excerpts);
331 register_action(editor, window, Editor::expand_excerpts_up);
332 register_action(editor, window, Editor::expand_excerpts_down);
333 }
334 register_action(editor, window, Editor::go_to_diagnostic);
335 register_action(editor, window, Editor::go_to_prev_diagnostic);
336 register_action(editor, window, Editor::go_to_next_hunk);
337 register_action(editor, window, Editor::go_to_prev_hunk);
338 register_action(editor, window, |editor, action, window, cx| {
339 editor
340 .go_to_definition(action, window, cx)
341 .detach_and_log_err(cx);
342 });
343 register_action(editor, window, |editor, action, window, cx| {
344 editor
345 .go_to_definition_split(action, window, cx)
346 .detach_and_log_err(cx);
347 });
348 register_action(editor, window, |editor, action, window, cx| {
349 editor
350 .go_to_declaration(action, window, cx)
351 .detach_and_log_err(cx);
352 });
353 register_action(editor, window, |editor, action, window, cx| {
354 editor
355 .go_to_declaration_split(action, window, cx)
356 .detach_and_log_err(cx);
357 });
358 register_action(editor, window, |editor, action, window, cx| {
359 editor
360 .go_to_implementation(action, window, cx)
361 .detach_and_log_err(cx);
362 });
363 register_action(editor, window, |editor, action, window, cx| {
364 editor
365 .go_to_implementation_split(action, window, cx)
366 .detach_and_log_err(cx);
367 });
368 register_action(editor, window, |editor, action, window, cx| {
369 editor
370 .go_to_type_definition(action, window, cx)
371 .detach_and_log_err(cx);
372 });
373 register_action(editor, window, |editor, action, window, cx| {
374 editor
375 .go_to_type_definition_split(action, window, cx)
376 .detach_and_log_err(cx);
377 });
378 register_action(editor, window, Editor::open_url);
379 register_action(editor, window, Editor::open_selected_filename);
380 register_action(editor, window, Editor::fold);
381 register_action(editor, window, Editor::fold_at_level);
382 register_action(editor, window, Editor::fold_all);
383 register_action(editor, window, Editor::fold_function_bodies);
384 register_action(editor, window, Editor::fold_at);
385 register_action(editor, window, Editor::fold_recursive);
386 register_action(editor, window, Editor::toggle_fold);
387 register_action(editor, window, Editor::toggle_fold_recursive);
388 register_action(editor, window, Editor::unfold_lines);
389 register_action(editor, window, Editor::unfold_recursive);
390 register_action(editor, window, Editor::unfold_all);
391 register_action(editor, window, Editor::unfold_at);
392 register_action(editor, window, Editor::fold_selected_ranges);
393 register_action(editor, window, Editor::set_mark);
394 register_action(editor, window, Editor::swap_selection_ends);
395 register_action(editor, window, Editor::show_completions);
396 register_action(editor, window, Editor::toggle_code_actions);
397 register_action(editor, window, Editor::open_excerpts);
398 register_action(editor, window, Editor::open_excerpts_in_split);
399 register_action(editor, window, Editor::open_proposed_changes_editor);
400 register_action(editor, window, Editor::toggle_soft_wrap);
401 register_action(editor, window, Editor::toggle_tab_bar);
402 register_action(editor, window, Editor::toggle_line_numbers);
403 register_action(editor, window, Editor::toggle_relative_line_numbers);
404 register_action(editor, window, Editor::toggle_indent_guides);
405 register_action(editor, window, Editor::toggle_inlay_hints);
406 register_action(editor, window, Editor::toggle_inline_completions);
407 register_action(editor, window, hover_popover::hover);
408 register_action(editor, window, Editor::reveal_in_finder);
409 register_action(editor, window, Editor::copy_path);
410 register_action(editor, window, Editor::copy_relative_path);
411 register_action(editor, window, Editor::copy_highlight_json);
412 register_action(editor, window, Editor::copy_permalink_to_line);
413 register_action(editor, window, Editor::open_permalink_to_line);
414 register_action(editor, window, Editor::copy_file_location);
415 register_action(editor, window, Editor::toggle_git_blame);
416 register_action(editor, window, Editor::toggle_git_blame_inline);
417 register_action(editor, window, Editor::toggle_selected_diff_hunks);
418 register_action(editor, window, Editor::expand_all_diff_hunks);
419 register_action(editor, window, |editor, action, window, cx| {
420 if let Some(task) = editor.format(action, window, cx) {
421 task.detach_and_notify_err(window, cx);
422 } else {
423 cx.propagate();
424 }
425 });
426 register_action(editor, window, |editor, action, window, cx| {
427 if let Some(task) = editor.format_selections(action, window, cx) {
428 task.detach_and_notify_err(window, cx);
429 } else {
430 cx.propagate();
431 }
432 });
433 register_action(editor, window, Editor::restart_language_server);
434 register_action(editor, window, Editor::show_character_palette);
435 register_action(editor, window, |editor, action, window, cx| {
436 if let Some(task) = editor.confirm_completion(action, window, cx) {
437 task.detach_and_notify_err(window, cx);
438 } else {
439 cx.propagate();
440 }
441 });
442 register_action(editor, window, |editor, action, window, cx| {
443 if let Some(task) = editor.compose_completion(action, window, cx) {
444 task.detach_and_notify_err(window, cx);
445 } else {
446 cx.propagate();
447 }
448 });
449 register_action(editor, window, |editor, action, window, cx| {
450 if let Some(task) = editor.confirm_code_action(action, window, cx) {
451 task.detach_and_notify_err(window, cx);
452 } else {
453 cx.propagate();
454 }
455 });
456 register_action(editor, window, |editor, action, window, cx| {
457 if let Some(task) = editor.rename(action, window, cx) {
458 task.detach_and_notify_err(window, cx);
459 } else {
460 cx.propagate();
461 }
462 });
463 register_action(editor, window, |editor, action, window, cx| {
464 if let Some(task) = editor.confirm_rename(action, window, cx) {
465 task.detach_and_notify_err(window, cx);
466 } else {
467 cx.propagate();
468 }
469 });
470 register_action(editor, window, |editor, action, window, cx| {
471 if let Some(task) = editor.find_all_references(action, window, cx) {
472 task.detach_and_log_err(cx);
473 } else {
474 cx.propagate();
475 }
476 });
477 register_action(editor, window, Editor::show_signature_help);
478 register_action(editor, window, Editor::next_edit_prediction);
479 register_action(editor, window, Editor::previous_edit_prediction);
480 register_action(editor, window, Editor::show_inline_completion);
481 register_action(editor, window, Editor::context_menu_first);
482 register_action(editor, window, Editor::context_menu_prev);
483 register_action(editor, window, Editor::context_menu_next);
484 register_action(editor, window, Editor::context_menu_last);
485 register_action(editor, window, Editor::display_cursor_names);
486 register_action(editor, window, Editor::unique_lines_case_insensitive);
487 register_action(editor, window, Editor::unique_lines_case_sensitive);
488 register_action(editor, window, Editor::accept_partial_inline_completion);
489 register_action(editor, window, Editor::accept_edit_prediction);
490 register_action(editor, window, Editor::revert_file);
491 register_action(editor, window, Editor::revert_selected_hunks);
492 register_action(editor, window, Editor::apply_all_diff_hunks);
493 register_action(editor, window, Editor::apply_selected_diff_hunks);
494 register_action(editor, window, Editor::open_active_item_in_terminal);
495 register_action(editor, window, Editor::reload_file);
496 register_action(editor, window, Editor::spawn_nearest_task);
497 register_action(editor, window, Editor::insert_uuid_v4);
498 register_action(editor, window, Editor::insert_uuid_v7);
499 register_action(editor, window, Editor::open_selections_in_multibuffer);
500 }
501
502 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
503 let position_map = layout.position_map.clone();
504 window.on_key_event({
505 let editor = self.editor.clone();
506 move |event: &ModifiersChangedEvent, phase, window, cx| {
507 if phase != DispatchPhase::Bubble {
508 return;
509 }
510 editor.update(cx, |editor, cx| {
511 if editor.hover_state.focused(window, cx) {
512 return;
513 }
514 Self::modifiers_changed(editor, event, &position_map, window, cx)
515 })
516 }
517 });
518 }
519
520 fn modifiers_changed(
521 editor: &mut Editor,
522 event: &ModifiersChangedEvent,
523 position_map: &PositionMap,
524 window: &mut Window,
525 cx: &mut Context<Editor>,
526 ) {
527 editor.update_inline_completion_preview(&event.modifiers, window, cx);
528
529 let mouse_position = window.mouse_position();
530 if !position_map.text_hitbox.is_hovered(window) {
531 return;
532 }
533
534 editor.update_hovered_link(
535 position_map.point_for_position(mouse_position),
536 &position_map.snapshot,
537 event.modifiers,
538 window,
539 cx,
540 )
541 }
542
543 fn mouse_left_down(
544 editor: &mut Editor,
545 event: &MouseDownEvent,
546 hovered_hunk: Option<Range<Anchor>>,
547 position_map: &PositionMap,
548 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
549 window: &mut Window,
550 cx: &mut Context<Editor>,
551 ) {
552 if window.default_prevented() {
553 return;
554 }
555
556 let text_hitbox = &position_map.text_hitbox;
557 let gutter_hitbox = &position_map.gutter_hitbox;
558 let mut click_count = event.click_count;
559 let mut modifiers = event.modifiers;
560
561 if let Some(hovered_hunk) = hovered_hunk {
562 editor.toggle_diff_hunks_in_ranges_narrow(vec![hovered_hunk], cx);
563 cx.notify();
564 return;
565 } else if gutter_hitbox.is_hovered(window) {
566 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
567 } else if !text_hitbox.is_hovered(window) {
568 return;
569 }
570
571 let is_singleton = editor.buffer().read(cx).is_singleton();
572
573 if click_count == 2 && !is_singleton {
574 match EditorSettings::get_global(cx).double_click_in_multibuffer {
575 DoubleClickInMultibuffer::Select => {
576 // do nothing special on double click, all selection logic is below
577 }
578 DoubleClickInMultibuffer::Open => {
579 if modifiers.alt {
580 // if double click is made with alt, pretend it's a regular double click without opening and alt,
581 // and run the selection logic.
582 modifiers.alt = false;
583 } else {
584 let scroll_position_row =
585 position_map.scroll_pixel_position.y / position_map.line_height;
586 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
587 + position_map.scroll_pixel_position.y)
588 / position_map.line_height)
589 as u32;
590 let multi_buffer_row = position_map
591 .snapshot
592 .display_point_to_point(
593 DisplayPoint::new(DisplayRow(display_row), 0),
594 Bias::Right,
595 )
596 .row;
597 let line_offset_from_top = display_row - scroll_position_row as u32;
598 // if double click is made without alt, open the corresponding excerp
599 editor.open_excerpts_common(
600 Some(JumpData::MultiBufferRow {
601 row: MultiBufferRow(multi_buffer_row),
602 line_offset_from_top,
603 }),
604 false,
605 window,
606 cx,
607 );
608 return;
609 }
610 }
611 }
612 }
613
614 let point_for_position = position_map.point_for_position(event.position);
615 let position = point_for_position.previous_valid;
616 if modifiers.shift && modifiers.alt {
617 editor.select(
618 SelectPhase::BeginColumnar {
619 position,
620 reset: false,
621 goal_column: point_for_position.exact_unclipped.column(),
622 },
623 window,
624 cx,
625 );
626 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
627 {
628 editor.select(
629 SelectPhase::Extend {
630 position,
631 click_count,
632 },
633 window,
634 cx,
635 );
636 } else {
637 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
638 let multi_cursor_modifier = match multi_cursor_setting {
639 MultiCursorModifier::Alt => modifiers.alt,
640 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
641 };
642 editor.select(
643 SelectPhase::Begin {
644 position,
645 add: multi_cursor_modifier,
646 click_count,
647 },
648 window,
649 cx,
650 );
651 }
652 cx.stop_propagation();
653
654 if !is_singleton {
655 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
656 + position_map.scroll_pixel_position.y)
657 / position_map.line_height) as u32;
658 let multi_buffer_row = position_map
659 .snapshot
660 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
661 .row;
662 if line_numbers
663 .get(&MultiBufferRow(multi_buffer_row))
664 .and_then(|line_number| line_number.hitbox.as_ref())
665 .is_some_and(|hitbox| hitbox.contains(&event.position))
666 {
667 let scroll_position_row =
668 position_map.scroll_pixel_position.y / position_map.line_height;
669 let line_offset_from_top = display_row - scroll_position_row as u32;
670
671 editor.open_excerpts_common(
672 Some(JumpData::MultiBufferRow {
673 row: MultiBufferRow(multi_buffer_row),
674 line_offset_from_top,
675 }),
676 modifiers.alt,
677 window,
678 cx,
679 );
680 cx.stop_propagation();
681 }
682 }
683 }
684
685 fn mouse_right_down(
686 editor: &mut Editor,
687 event: &MouseDownEvent,
688 position_map: &PositionMap,
689 window: &mut Window,
690 cx: &mut Context<Editor>,
691 ) {
692 if !position_map.text_hitbox.is_hovered(window) {
693 return;
694 }
695 let point_for_position = position_map.point_for_position(event.position);
696 mouse_context_menu::deploy_context_menu(
697 editor,
698 Some(event.position),
699 point_for_position.previous_valid,
700 window,
701 cx,
702 );
703 cx.stop_propagation();
704 }
705
706 fn mouse_middle_down(
707 editor: &mut Editor,
708 event: &MouseDownEvent,
709 position_map: &PositionMap,
710 window: &mut Window,
711 cx: &mut Context<Editor>,
712 ) {
713 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
714 return;
715 }
716
717 let point_for_position = position_map.point_for_position(event.position);
718 let position = point_for_position.previous_valid;
719
720 editor.select(
721 SelectPhase::BeginColumnar {
722 position,
723 reset: true,
724 goal_column: point_for_position.exact_unclipped.column(),
725 },
726 window,
727 cx,
728 );
729 }
730
731 fn mouse_up(
732 editor: &mut Editor,
733 event: &MouseUpEvent,
734 position_map: &PositionMap,
735 window: &mut Window,
736 cx: &mut Context<Editor>,
737 ) {
738 let text_hitbox = &position_map.text_hitbox;
739 let end_selection = editor.has_pending_selection();
740 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
741
742 if end_selection {
743 editor.select(SelectPhase::End, window, cx);
744 }
745
746 if end_selection && pending_nonempty_selections {
747 cx.stop_propagation();
748 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
749 && event.button == MouseButton::Middle
750 {
751 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
752 return;
753 }
754
755 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
756 if EditorSettings::get_global(cx).middle_click_paste {
757 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
758 let point_for_position = position_map.point_for_position(event.position);
759 let position = point_for_position.previous_valid;
760
761 editor.select(
762 SelectPhase::Begin {
763 position,
764 add: false,
765 click_count: 1,
766 },
767 window,
768 cx,
769 );
770 editor.insert(&text, window, cx);
771 }
772 cx.stop_propagation()
773 }
774 }
775 }
776
777 fn click(
778 editor: &mut Editor,
779 event: &ClickEvent,
780 position_map: &PositionMap,
781 window: &mut Window,
782 cx: &mut Context<Editor>,
783 ) {
784 let text_hitbox = &position_map.text_hitbox;
785 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
786
787 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
788 let multi_cursor_modifier = match multi_cursor_setting {
789 MultiCursorModifier::Alt => event.modifiers().secondary(),
790 MultiCursorModifier::CmdOrCtrl => event.modifiers().alt,
791 };
792
793 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(window) {
794 let point = position_map.point_for_position(event.up.position);
795 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
796
797 cx.stop_propagation();
798 }
799 }
800
801 fn mouse_dragged(
802 editor: &mut Editor,
803 event: &MouseMoveEvent,
804 position_map: &PositionMap,
805 window: &mut Window,
806 cx: &mut Context<Editor>,
807 ) {
808 if !editor.has_pending_selection() {
809 return;
810 }
811
812 let text_bounds = position_map.text_hitbox.bounds;
813 let point_for_position = position_map.point_for_position(event.position);
814 let mut scroll_delta = gpui::Point::<f32>::default();
815 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
816 let top = text_bounds.origin.y + vertical_margin;
817 let bottom = text_bounds.bottom_left().y - vertical_margin;
818 if event.position.y < top {
819 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
820 }
821 if event.position.y > bottom {
822 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
823 }
824
825 // We need horizontal width of text
826 let style = editor.style.clone().unwrap_or_default();
827 let font_id = window.text_system().resolve_font(&style.text.font());
828 let font_size = style.text.font_size.to_pixels(window.rem_size());
829 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
830
831 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
832
833 let scroll_space: Pixels = scroll_margin_x * em_width;
834
835 let left = text_bounds.origin.x + scroll_space;
836 let right = text_bounds.top_right().x - scroll_space;
837
838 if event.position.x < left {
839 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
840 }
841 if event.position.x > right {
842 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
843 }
844
845 editor.select(
846 SelectPhase::Update {
847 position: point_for_position.previous_valid,
848 goal_column: point_for_position.exact_unclipped.column(),
849 scroll_delta,
850 },
851 window,
852 cx,
853 );
854 }
855
856 fn mouse_moved(
857 editor: &mut Editor,
858 event: &MouseMoveEvent,
859 position_map: &PositionMap,
860 window: &mut Window,
861 cx: &mut Context<Editor>,
862 ) {
863 let text_hitbox = &position_map.text_hitbox;
864 let gutter_hitbox = &position_map.gutter_hitbox;
865 let modifiers = event.modifiers;
866 let gutter_hovered = gutter_hitbox.is_hovered(window);
867 editor.set_gutter_hovered(gutter_hovered, cx);
868
869 // Don't trigger hover popover if mouse is hovering over context menu
870 if text_hitbox.is_hovered(window) {
871 let point_for_position = position_map.point_for_position(event.position);
872
873 editor.update_hovered_link(
874 point_for_position,
875 &position_map.snapshot,
876 modifiers,
877 window,
878 cx,
879 );
880
881 if let Some(point) = point_for_position.as_valid() {
882 let anchor = position_map
883 .snapshot
884 .buffer_snapshot
885 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
886 hover_at(editor, Some(anchor), window, cx);
887 Self::update_visible_cursor(editor, point, position_map, window, cx);
888 } else {
889 hover_at(editor, None, window, cx);
890 }
891 } else {
892 editor.hide_hovered_link(cx);
893 hover_at(editor, None, window, cx);
894 if gutter_hovered {
895 cx.stop_propagation();
896 }
897 }
898 }
899
900 fn update_visible_cursor(
901 editor: &mut Editor,
902 point: DisplayPoint,
903 position_map: &PositionMap,
904 window: &mut Window,
905 cx: &mut Context<Editor>,
906 ) {
907 let snapshot = &position_map.snapshot;
908 let Some(hub) = editor.collaboration_hub() else {
909 return;
910 };
911 let start = snapshot.display_snapshot.clip_point(
912 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
913 Bias::Left,
914 );
915 let end = snapshot.display_snapshot.clip_point(
916 DisplayPoint::new(
917 point.row(),
918 (point.column() + 1).min(snapshot.line_len(point.row())),
919 ),
920 Bias::Right,
921 );
922
923 let range = snapshot
924 .buffer_snapshot
925 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
926 ..snapshot
927 .buffer_snapshot
928 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
929
930 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
931 return;
932 };
933 let key = crate::HoveredCursor {
934 replica_id: selection.replica_id,
935 selection_id: selection.selection.id,
936 };
937 editor.hovered_cursors.insert(
938 key.clone(),
939 cx.spawn_in(window, |editor, mut cx| async move {
940 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
941 editor
942 .update(&mut cx, |editor, cx| {
943 editor.hovered_cursors.remove(&key);
944 cx.notify();
945 })
946 .ok();
947 }),
948 );
949 cx.notify()
950 }
951
952 #[allow(clippy::too_many_arguments)]
953 fn layout_selections(
954 &self,
955 start_anchor: Anchor,
956 end_anchor: Anchor,
957 local_selections: &[Selection<Point>],
958 snapshot: &EditorSnapshot,
959 start_row: DisplayRow,
960 end_row: DisplayRow,
961 window: &mut Window,
962 cx: &mut App,
963 ) -> (
964 Vec<(PlayerColor, Vec<SelectionLayout>)>,
965 BTreeMap<DisplayRow, bool>,
966 Option<DisplayPoint>,
967 ) {
968 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
969 let mut active_rows = BTreeMap::new();
970 let mut newest_selection_head = None;
971 self.editor.update(cx, |editor, cx| {
972 if editor.show_local_selections {
973 let mut layouts = Vec::new();
974 let newest = editor.selections.newest(cx);
975 for selection in local_selections.iter().cloned() {
976 let is_empty = selection.start == selection.end;
977 let is_newest = selection == newest;
978
979 let layout = SelectionLayout::new(
980 selection,
981 editor.selections.line_mode,
982 editor.cursor_shape,
983 &snapshot.display_snapshot,
984 is_newest,
985 editor.leader_peer_id.is_none(),
986 None,
987 );
988 if is_newest {
989 newest_selection_head = Some(layout.head);
990 }
991
992 for row in cmp::max(layout.active_rows.start.0, start_row.0)
993 ..=cmp::min(layout.active_rows.end.0, end_row.0)
994 {
995 let contains_non_empty_selection =
996 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
997 *contains_non_empty_selection |= !is_empty;
998 }
999 layouts.push(layout);
1000 }
1001
1002 let player = editor.current_user_player_color(cx);
1003 selections.push((player, layouts));
1004 }
1005
1006 if let Some(collaboration_hub) = &editor.collaboration_hub {
1007 // When following someone, render the local selections in their color.
1008 if let Some(leader_id) = editor.leader_peer_id {
1009 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id)
1010 {
1011 if let Some(participant_index) = collaboration_hub
1012 .user_participant_indices(cx)
1013 .get(&collaborator.user_id)
1014 {
1015 if let Some((local_selection_style, _)) = selections.first_mut() {
1016 *local_selection_style = cx
1017 .theme()
1018 .players()
1019 .color_for_participant(participant_index.0);
1020 }
1021 }
1022 }
1023 }
1024
1025 let mut remote_selections = HashMap::default();
1026 for selection in snapshot.remote_selections_in_range(
1027 &(start_anchor..end_anchor),
1028 collaboration_hub.as_ref(),
1029 cx,
1030 ) {
1031 let selection_style =
1032 Self::get_participant_color(selection.participant_index, cx);
1033
1034 // Don't re-render the leader's selections, since the local selections
1035 // match theirs.
1036 if Some(selection.peer_id) == editor.leader_peer_id {
1037 continue;
1038 }
1039 let key = HoveredCursor {
1040 replica_id: selection.replica_id,
1041 selection_id: selection.selection.id,
1042 };
1043
1044 let is_shown =
1045 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1046
1047 remote_selections
1048 .entry(selection.replica_id)
1049 .or_insert((selection_style, Vec::new()))
1050 .1
1051 .push(SelectionLayout::new(
1052 selection.selection,
1053 selection.line_mode,
1054 selection.cursor_shape,
1055 &snapshot.display_snapshot,
1056 false,
1057 false,
1058 if is_shown { selection.user_name } else { None },
1059 ));
1060 }
1061
1062 selections.extend(remote_selections.into_values());
1063 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1064 let layouts = snapshot
1065 .buffer_snapshot
1066 .selections_in_range(&(start_anchor..end_anchor), true)
1067 .map(move |(_, line_mode, cursor_shape, selection)| {
1068 SelectionLayout::new(
1069 selection,
1070 line_mode,
1071 cursor_shape,
1072 &snapshot.display_snapshot,
1073 false,
1074 false,
1075 None,
1076 )
1077 })
1078 .collect::<Vec<_>>();
1079 let player = editor.current_user_player_color(cx);
1080 selections.push((player, layouts));
1081 }
1082 });
1083 (selections, active_rows, newest_selection_head)
1084 }
1085
1086 fn collect_cursors(
1087 &self,
1088 snapshot: &EditorSnapshot,
1089 cx: &mut App,
1090 ) -> Vec<(DisplayPoint, Hsla)> {
1091 let editor = self.editor.read(cx);
1092 let mut cursors = Vec::new();
1093 let mut skip_local = false;
1094 let mut add_cursor = |anchor: Anchor, color| {
1095 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1096 };
1097 // Remote cursors
1098 if let Some(collaboration_hub) = &editor.collaboration_hub {
1099 for remote_selection in snapshot.remote_selections_in_range(
1100 &(Anchor::min()..Anchor::max()),
1101 collaboration_hub.deref(),
1102 cx,
1103 ) {
1104 let color = Self::get_participant_color(remote_selection.participant_index, cx);
1105 add_cursor(remote_selection.selection.head(), color.cursor);
1106 if Some(remote_selection.peer_id) == editor.leader_peer_id {
1107 skip_local = true;
1108 }
1109 }
1110 }
1111 // Local cursors
1112 if !skip_local {
1113 let color = cx.theme().players().local().cursor;
1114 editor.selections.disjoint.iter().for_each(|selection| {
1115 add_cursor(selection.head(), color);
1116 });
1117 if let Some(ref selection) = editor.selections.pending_anchor() {
1118 add_cursor(selection.head(), color);
1119 }
1120 }
1121 cursors
1122 }
1123
1124 #[allow(clippy::too_many_arguments)]
1125 fn layout_visible_cursors(
1126 &self,
1127 snapshot: &EditorSnapshot,
1128 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1129 block_start_rows: &HashSet<DisplayRow>,
1130 visible_display_row_range: Range<DisplayRow>,
1131 line_layouts: &[LineWithInvisibles],
1132 text_hitbox: &Hitbox,
1133 content_origin: gpui::Point<Pixels>,
1134 scroll_position: gpui::Point<f32>,
1135 scroll_pixel_position: gpui::Point<Pixels>,
1136 line_height: Pixels,
1137 em_width: Pixels,
1138 em_advance: Pixels,
1139 autoscroll_containing_element: bool,
1140 window: &mut Window,
1141 cx: &mut App,
1142 ) -> Vec<CursorLayout> {
1143 let mut autoscroll_bounds = None;
1144 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1145 let mut cursors = Vec::new();
1146 for (player_color, selections) in selections {
1147 for selection in selections {
1148 let cursor_position = selection.head;
1149
1150 let in_range = visible_display_row_range.contains(&cursor_position.row());
1151 if (selection.is_local && !editor.show_local_cursors(window, cx))
1152 || !in_range
1153 || block_start_rows.contains(&cursor_position.row())
1154 {
1155 continue;
1156 }
1157
1158 let cursor_row_layout = &line_layouts
1159 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1160 let cursor_column = cursor_position.column() as usize;
1161
1162 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1163 let mut block_width =
1164 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1165 if block_width == Pixels::ZERO {
1166 block_width = em_advance;
1167 }
1168 let block_text = if let CursorShape::Block = selection.cursor_shape {
1169 snapshot
1170 .grapheme_at(cursor_position)
1171 .or_else(|| {
1172 if cursor_column == 0 {
1173 snapshot.placeholder_text().and_then(|s| {
1174 s.graphemes(true).next().map(|s| s.to_string().into())
1175 })
1176 } else {
1177 None
1178 }
1179 })
1180 .and_then(|text| {
1181 let len = text.len();
1182
1183 let font = cursor_row_layout
1184 .font_id_for_index(cursor_column)
1185 .and_then(|cursor_font_id| {
1186 window.text_system().get_font_for_id(cursor_font_id)
1187 })
1188 .unwrap_or(self.style.text.font());
1189
1190 // Invert the text color for the block cursor. Ensure that the text
1191 // color is opaque enough to be visible against the background color.
1192 //
1193 // 0.75 is an arbitrary threshold to determine if the background color is
1194 // opaque enough to use as a text color.
1195 //
1196 // TODO: In the future we should ensure themes have a `text_inverse` color.
1197 let color = if cx.theme().colors().editor_background.a < 0.75 {
1198 match cx.theme().appearance {
1199 Appearance::Dark => Hsla::black(),
1200 Appearance::Light => Hsla::white(),
1201 }
1202 } else {
1203 cx.theme().colors().editor_background
1204 };
1205
1206 window
1207 .text_system()
1208 .shape_line(
1209 text,
1210 cursor_row_layout.font_size,
1211 &[TextRun {
1212 len,
1213 font,
1214 color,
1215 background_color: None,
1216 strikethrough: None,
1217 underline: None,
1218 }],
1219 )
1220 .log_err()
1221 })
1222 } else {
1223 None
1224 };
1225
1226 let x = cursor_character_x - scroll_pixel_position.x;
1227 let y = (cursor_position.row().as_f32()
1228 - scroll_pixel_position.y / line_height)
1229 * line_height;
1230 if selection.is_newest {
1231 editor.pixel_position_of_newest_cursor = Some(point(
1232 text_hitbox.origin.x + x + block_width / 2.,
1233 text_hitbox.origin.y + y + line_height / 2.,
1234 ));
1235
1236 if autoscroll_containing_element {
1237 let top = text_hitbox.origin.y
1238 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1239 * line_height;
1240 let left = text_hitbox.origin.x
1241 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1242 .max(0.)
1243 * em_width;
1244
1245 let bottom = text_hitbox.origin.y
1246 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1247 * line_height;
1248 let right = text_hitbox.origin.x
1249 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1250 * em_width;
1251
1252 autoscroll_bounds =
1253 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1254 }
1255 }
1256
1257 let mut cursor = CursorLayout {
1258 color: player_color.cursor,
1259 block_width,
1260 origin: point(x, y),
1261 line_height,
1262 shape: selection.cursor_shape,
1263 block_text,
1264 cursor_name: None,
1265 };
1266 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1267 string: name,
1268 color: self.style.background,
1269 is_top_row: cursor_position.row().0 == 0,
1270 });
1271 cursor.layout(content_origin, cursor_name, window, cx);
1272 cursors.push(cursor);
1273 }
1274 }
1275 cursors
1276 });
1277
1278 if let Some(bounds) = autoscroll_bounds {
1279 window.request_autoscroll(bounds);
1280 }
1281
1282 cursor_layouts
1283 }
1284
1285 fn layout_scrollbars(
1286 &self,
1287 snapshot: &EditorSnapshot,
1288 scrollbar_range_data: ScrollbarRangeData,
1289 scroll_position: gpui::Point<f32>,
1290 non_visible_cursors: bool,
1291 window: &mut Window,
1292 cx: &mut App,
1293 ) -> AxisPair<Option<ScrollbarLayout>> {
1294 let letter_size = scrollbar_range_data.letter_size;
1295 let text_units_per_page = axis_pair(
1296 scrollbar_range_data.scrollbar_bounds.size.width / letter_size.width,
1297 scrollbar_range_data.scrollbar_bounds.size.height / letter_size.height,
1298 );
1299
1300 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1301 let show_scrollbars = self.editor.read(cx).show_scrollbars
1302 && match scrollbar_settings.show {
1303 ShowScrollbar::Auto => {
1304 let editor = self.editor.read(cx);
1305 let is_singleton = editor.is_singleton(cx);
1306 // Git
1307 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1308 ||
1309 // Buffer Search Results
1310 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1311 ||
1312 // Selected Symbol Occurrences
1313 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1314 ||
1315 // Diagnostics
1316 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1317 ||
1318 // Cursors out of sight
1319 non_visible_cursors
1320 ||
1321 // Scrollmanager
1322 editor.scroll_manager.scrollbars_visible()
1323 }
1324 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1325 ShowScrollbar::Always => true,
1326 ShowScrollbar::Never => false,
1327 };
1328
1329 let axes: AxisPair<bool> = scrollbar_settings.axes.into();
1330
1331 if snapshot.mode != EditorMode::Full {
1332 return axis_pair(None, None);
1333 }
1334
1335 let visible_range = axis_pair(
1336 axes.horizontal
1337 .then(|| scroll_position.x..scroll_position.x + text_units_per_page.horizontal),
1338 axes.vertical
1339 .then(|| scroll_position.y..scroll_position.y + text_units_per_page.vertical),
1340 );
1341
1342 // If a drag took place after we started dragging the scrollbar,
1343 // cancel the scrollbar drag.
1344 if cx.has_active_drag() {
1345 self.editor.update(cx, |editor, cx| {
1346 editor
1347 .scroll_manager
1348 .set_is_dragging_scrollbar(Axis::Horizontal, false, cx);
1349 editor
1350 .scroll_manager
1351 .set_is_dragging_scrollbar(Axis::Vertical, false, cx);
1352 });
1353 }
1354
1355 let text_bounds = scrollbar_range_data.scrollbar_bounds;
1356
1357 let track_bounds = axis_pair(
1358 axes.horizontal.then(|| {
1359 Bounds::from_corners(
1360 point(
1361 text_bounds.bottom_left().x,
1362 text_bounds.bottom_left().y - self.style.scrollbar_width,
1363 ),
1364 point(
1365 text_bounds.bottom_right().x
1366 - if axes.vertical {
1367 self.style.scrollbar_width
1368 } else {
1369 px(0.)
1370 },
1371 text_bounds.bottom_right().y,
1372 ),
1373 )
1374 }),
1375 axes.vertical.then(|| {
1376 Bounds::from_corners(
1377 point(self.scrollbar_left(&text_bounds), text_bounds.origin.y),
1378 text_bounds.bottom_right(),
1379 )
1380 }),
1381 );
1382
1383 let scroll_range_size = scrollbar_range_data.scroll_range.size;
1384 let total_text_units = axis_pair(
1385 Some(scroll_range_size.width / letter_size.width),
1386 Some(scroll_range_size.height / letter_size.height),
1387 );
1388
1389 let thumb_size = axis_pair(
1390 total_text_units
1391 .horizontal
1392 .zip(track_bounds.horizontal)
1393 .and_then(|(total_text_units_x, track_bounds_x)| {
1394 if text_units_per_page.horizontal >= total_text_units_x {
1395 return None;
1396 }
1397
1398 let thumb_percent =
1399 (text_units_per_page.horizontal / total_text_units_x).min(1.);
1400
1401 Some(track_bounds_x.size.width * thumb_percent)
1402 }),
1403 total_text_units.vertical.zip(track_bounds.vertical).map(
1404 |(total_text_units_y, track_bounds_y)| {
1405 let thumb_percent = (text_units_per_page.vertical / total_text_units_y).min(1.);
1406
1407 track_bounds_y.size.height * thumb_percent
1408 },
1409 ),
1410 );
1411
1412 // NOTE: Space not taken by track bounds divided by text units not on screen
1413 let text_unit_size = axis_pair(
1414 thumb_size
1415 .horizontal
1416 .zip(track_bounds.horizontal)
1417 .zip(total_text_units.horizontal)
1418 .map(|((thumb_size, track_bounds), total_text_units)| {
1419 (track_bounds.size.width - thumb_size)
1420 / (total_text_units - text_units_per_page.horizontal).max(0.)
1421 }),
1422 thumb_size
1423 .vertical
1424 .zip(track_bounds.vertical)
1425 .zip(total_text_units.vertical)
1426 .map(|((thumb_size, track_bounds), total_text_units)| {
1427 (track_bounds.size.height - thumb_size)
1428 / (total_text_units - text_units_per_page.vertical).max(0.)
1429 }),
1430 );
1431
1432 let horizontal_scrollbar = track_bounds
1433 .horizontal
1434 .zip(visible_range.horizontal)
1435 .zip(text_unit_size.horizontal)
1436 .zip(thumb_size.horizontal)
1437 .map(
1438 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1439 hitbox: window.insert_hitbox(track_bounds, false),
1440 visible_range,
1441 text_unit_size,
1442 visible: show_scrollbars,
1443 thumb_size,
1444 axis: Axis::Horizontal,
1445 },
1446 );
1447
1448 let vertical_scrollbar = track_bounds
1449 .vertical
1450 .zip(visible_range.vertical)
1451 .zip(text_unit_size.vertical)
1452 .zip(thumb_size.vertical)
1453 .map(
1454 |(((track_bounds, visible_range), text_unit_size), thumb_size)| ScrollbarLayout {
1455 hitbox: window.insert_hitbox(track_bounds, false),
1456 visible_range,
1457 text_unit_size,
1458 visible: show_scrollbars,
1459 thumb_size,
1460 axis: Axis::Vertical,
1461 },
1462 );
1463
1464 axis_pair(horizontal_scrollbar, vertical_scrollbar)
1465 }
1466
1467 #[allow(clippy::too_many_arguments)]
1468 fn prepaint_crease_toggles(
1469 &self,
1470 crease_toggles: &mut [Option<AnyElement>],
1471 line_height: Pixels,
1472 gutter_dimensions: &GutterDimensions,
1473 gutter_settings: crate::editor_settings::Gutter,
1474 scroll_pixel_position: gpui::Point<Pixels>,
1475 gutter_hitbox: &Hitbox,
1476 window: &mut Window,
1477 cx: &mut App,
1478 ) {
1479 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1480 if let Some(crease_toggle) = crease_toggle {
1481 debug_assert!(gutter_settings.folds);
1482 let available_space = size(
1483 AvailableSpace::MinContent,
1484 AvailableSpace::Definite(line_height * 0.55),
1485 );
1486 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1487
1488 let position = point(
1489 gutter_dimensions.width - gutter_dimensions.right_padding,
1490 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1491 );
1492 let centering_offset = point(
1493 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1494 (line_height - crease_toggle_size.height) / 2.,
1495 );
1496 let origin = gutter_hitbox.origin + position + centering_offset;
1497 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1498 }
1499 }
1500 }
1501
1502 #[allow(clippy::too_many_arguments)]
1503 fn prepaint_crease_trailers(
1504 &self,
1505 trailers: Vec<Option<AnyElement>>,
1506 lines: &[LineWithInvisibles],
1507 line_height: Pixels,
1508 content_origin: gpui::Point<Pixels>,
1509 scroll_pixel_position: gpui::Point<Pixels>,
1510 em_width: Pixels,
1511 window: &mut Window,
1512 cx: &mut App,
1513 ) -> Vec<Option<CreaseTrailerLayout>> {
1514 trailers
1515 .into_iter()
1516 .enumerate()
1517 .map(|(ix, element)| {
1518 let mut element = element?;
1519 let available_space = size(
1520 AvailableSpace::MinContent,
1521 AvailableSpace::Definite(line_height),
1522 );
1523 let size = element.layout_as_root(available_space, window, cx);
1524
1525 let line = &lines[ix];
1526 let padding = if line.width == Pixels::ZERO {
1527 Pixels::ZERO
1528 } else {
1529 4. * em_width
1530 };
1531 let position = point(
1532 scroll_pixel_position.x + line.width + padding,
1533 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1534 );
1535 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1536 let origin = content_origin + position + centering_offset;
1537 element.prepaint_as_root(origin, available_space, window, cx);
1538 Some(CreaseTrailerLayout {
1539 element,
1540 bounds: Bounds::new(origin, size),
1541 })
1542 })
1543 .collect()
1544 }
1545
1546 // Folds contained in a hunk are ignored apart from shrinking visual size
1547 // If a fold contains any hunks then that fold line is marked as modified
1548 fn layout_gutter_diff_hunks(
1549 &self,
1550 line_height: Pixels,
1551 gutter_hitbox: &Hitbox,
1552 display_rows: Range<DisplayRow>,
1553 snapshot: &EditorSnapshot,
1554 window: &mut Window,
1555 cx: &mut App,
1556 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1557 let buffer_start = DisplayPoint::new(display_rows.start, 0).to_point(snapshot);
1558 let buffer_end = DisplayPoint::new(display_rows.end, 0).to_point(snapshot);
1559
1560 let mut display_hunks = Vec::<(DisplayDiffHunk, Option<Hitbox>)>::new();
1561 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
1562
1563 for hunk in snapshot
1564 .buffer_snapshot
1565 .diff_hunks_in_range(buffer_start..buffer_end)
1566 {
1567 if folded_buffers.contains(&hunk.buffer_id) {
1568 continue;
1569 }
1570
1571 let hunk_start_point = Point::new(hunk.row_range.start.0, 0);
1572 let hunk_end_point = Point::new(hunk.row_range.end.0, 0);
1573
1574 let hunk_display_start = snapshot.point_to_display_point(hunk_start_point, Bias::Left);
1575 let hunk_display_end = snapshot.point_to_display_point(hunk_end_point, Bias::Right);
1576
1577 let display_hunk = if hunk_display_start.column() != 0 {
1578 DisplayDiffHunk::Folded {
1579 display_row: hunk_display_start.row(),
1580 }
1581 } else {
1582 let mut end_row = hunk_display_end.row();
1583 if hunk_display_end.column() > 0 {
1584 end_row.0 += 1;
1585 }
1586 DisplayDiffHunk::Unfolded {
1587 status: hunk.status(),
1588 diff_base_byte_range: hunk.diff_base_byte_range,
1589 display_row_range: hunk_display_start.row()..end_row,
1590 multi_buffer_range: Anchor::range_in_buffer(
1591 hunk.excerpt_id,
1592 hunk.buffer_id,
1593 hunk.buffer_range,
1594 ),
1595 }
1596 };
1597
1598 display_hunks.push((display_hunk, None));
1599 }
1600
1601 let git_gutter_setting = ProjectSettings::get_global(cx)
1602 .git
1603 .git_gutter
1604 .unwrap_or_default();
1605 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
1606 for (hunk, hitbox) in &mut display_hunks {
1607 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
1608 let hunk_bounds =
1609 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
1610 *hitbox = Some(window.insert_hitbox(hunk_bounds, true));
1611 }
1612 }
1613 }
1614
1615 display_hunks
1616 }
1617
1618 #[allow(clippy::too_many_arguments)]
1619 fn layout_inline_blame(
1620 &self,
1621 display_row: DisplayRow,
1622 row_info: &RowInfo,
1623 line_layout: &LineWithInvisibles,
1624 crease_trailer: Option<&CreaseTrailerLayout>,
1625 em_width: Pixels,
1626 content_origin: gpui::Point<Pixels>,
1627 scroll_pixel_position: gpui::Point<Pixels>,
1628 line_height: Pixels,
1629 window: &mut Window,
1630 cx: &mut App,
1631 ) -> Option<AnyElement> {
1632 if !self
1633 .editor
1634 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
1635 {
1636 return None;
1637 }
1638
1639 let workspace = self
1640 .editor
1641 .read(cx)
1642 .workspace
1643 .as_ref()
1644 .map(|(w, _)| w.clone());
1645
1646 let editor = self.editor.read(cx);
1647 let blame = editor.blame.clone()?;
1648 let padding = {
1649 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1650 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
1651
1652 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
1653
1654 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
1655 match &inline_completion.completion {
1656 InlineCompletion::Edit {
1657 display_mode: EditDisplayMode::TabAccept,
1658 ..
1659 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
1660 _ => {}
1661 }
1662 }
1663
1664 padding * em_width
1665 };
1666
1667 let blame_entry = blame
1668 .update(cx, |blame, cx| {
1669 blame.blame_for_rows(&[*row_info], cx).next()
1670 })
1671 .flatten()?;
1672
1673 let mut element =
1674 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1675
1676 let start_y = content_origin.y
1677 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1678
1679 let start_x = {
1680 let line_end = if let Some(crease_trailer) = crease_trailer {
1681 crease_trailer.bounds.right()
1682 } else {
1683 content_origin.x - scroll_pixel_position.x + line_layout.width
1684 };
1685
1686 let padded_line_end = line_end + padding;
1687
1688 let min_column_in_pixels = ProjectSettings::get_global(cx)
1689 .git
1690 .inline_blame
1691 .and_then(|settings| settings.min_column)
1692 .map(|col| self.column_pixels(col as usize, window, cx))
1693 .unwrap_or(px(0.));
1694 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1695
1696 cmp::max(padded_line_end, min_start)
1697 };
1698
1699 let absolute_offset = point(start_x, start_y);
1700 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
1701
1702 Some(element)
1703 }
1704
1705 #[allow(clippy::too_many_arguments)]
1706 fn layout_blame_entries(
1707 &self,
1708 buffer_rows: &[RowInfo],
1709 em_width: Pixels,
1710 scroll_position: gpui::Point<f32>,
1711 line_height: Pixels,
1712 gutter_hitbox: &Hitbox,
1713 max_width: Option<Pixels>,
1714 window: &mut Window,
1715 cx: &mut App,
1716 ) -> Option<Vec<AnyElement>> {
1717 if !self
1718 .editor
1719 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1720 {
1721 return None;
1722 }
1723
1724 let blame = self.editor.read(cx).blame.clone()?;
1725 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1726 blame.blame_for_rows(buffer_rows, cx).collect()
1727 });
1728
1729 let width = if let Some(max_width) = max_width {
1730 AvailableSpace::Definite(max_width)
1731 } else {
1732 AvailableSpace::MaxContent
1733 };
1734 let scroll_top = scroll_position.y * line_height;
1735 let start_x = em_width;
1736
1737 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1738
1739 let shaped_lines = blamed_rows
1740 .into_iter()
1741 .enumerate()
1742 .flat_map(|(ix, blame_entry)| {
1743 if let Some(blame_entry) = blame_entry {
1744 let mut element = render_blame_entry(
1745 ix,
1746 &blame,
1747 blame_entry,
1748 &self.style,
1749 &mut last_used_color,
1750 self.editor.clone(),
1751 cx,
1752 );
1753
1754 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1755 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1756
1757 element.prepaint_as_root(
1758 absolute_offset,
1759 size(width, AvailableSpace::MinContent),
1760 window,
1761 cx,
1762 );
1763
1764 Some(element)
1765 } else {
1766 None
1767 }
1768 })
1769 .collect();
1770
1771 Some(shaped_lines)
1772 }
1773
1774 #[allow(clippy::too_many_arguments)]
1775 fn layout_indent_guides(
1776 &self,
1777 content_origin: gpui::Point<Pixels>,
1778 text_origin: gpui::Point<Pixels>,
1779 visible_buffer_range: Range<MultiBufferRow>,
1780 scroll_pixel_position: gpui::Point<Pixels>,
1781 line_height: Pixels,
1782 snapshot: &DisplaySnapshot,
1783 window: &mut Window,
1784 cx: &mut App,
1785 ) -> Option<Vec<IndentGuideLayout>> {
1786 let indent_guides = self.editor.update(cx, |editor, cx| {
1787 editor.indent_guides(visible_buffer_range, snapshot, cx)
1788 })?;
1789
1790 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1791 editor
1792 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
1793 .unwrap_or_default()
1794 });
1795
1796 Some(
1797 indent_guides
1798 .into_iter()
1799 .enumerate()
1800 .filter_map(|(i, indent_guide)| {
1801 let single_indent_width =
1802 self.column_pixels(indent_guide.tab_size as usize, window, cx);
1803 let total_width = single_indent_width * indent_guide.depth as f32;
1804 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1805 if start_x >= text_origin.x {
1806 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1807 indent_guide.start_row..indent_guide.end_row,
1808 line_height,
1809 snapshot,
1810 );
1811
1812 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1813
1814 Some(IndentGuideLayout {
1815 origin: point(start_x, start_y),
1816 length,
1817 single_indent_width,
1818 depth: indent_guide.depth,
1819 active: active_indent_guide_indices.contains(&i),
1820 settings: indent_guide.settings,
1821 })
1822 } else {
1823 None
1824 }
1825 })
1826 .collect(),
1827 )
1828 }
1829
1830 fn calculate_indent_guide_bounds(
1831 row_range: Range<MultiBufferRow>,
1832 line_height: Pixels,
1833 snapshot: &DisplaySnapshot,
1834 ) -> (gpui::Pixels, gpui::Pixels) {
1835 let start_point = Point::new(row_range.start.0, 0);
1836 let end_point = Point::new(row_range.end.0, 0);
1837
1838 let row_range = start_point.to_display_point(snapshot).row()
1839 ..end_point.to_display_point(snapshot).row();
1840
1841 let mut prev_line = start_point;
1842 prev_line.row = prev_line.row.saturating_sub(1);
1843 let prev_line = prev_line.to_display_point(snapshot).row();
1844
1845 let mut cons_line = end_point;
1846 cons_line.row += 1;
1847 let cons_line = cons_line.to_display_point(snapshot).row();
1848
1849 let mut offset_y = row_range.start.0 as f32 * line_height;
1850 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1851
1852 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1853 if row_range.end == cons_line {
1854 length += line_height;
1855 }
1856
1857 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1858 // we want to extend the indent guide to the start of the block.
1859 let mut block_height = 0;
1860 let mut block_offset = 0;
1861 let mut found_excerpt_header = false;
1862 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1863 if matches!(block, Block::ExcerptBoundary { .. }) {
1864 found_excerpt_header = true;
1865 break;
1866 }
1867 block_offset += block.height();
1868 block_height += block.height();
1869 }
1870 if !found_excerpt_header {
1871 offset_y -= block_offset as f32 * line_height;
1872 length += block_height as f32 * line_height;
1873 }
1874
1875 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1876 // we want to ensure that the indent guide stops before the excerpt header.
1877 let mut block_height = 0;
1878 let mut found_excerpt_header = false;
1879 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1880 if matches!(block, Block::ExcerptBoundary { .. }) {
1881 found_excerpt_header = true;
1882 }
1883 block_height += block.height();
1884 }
1885 if found_excerpt_header {
1886 length -= block_height as f32 * line_height;
1887 }
1888
1889 (offset_y, length)
1890 }
1891
1892 #[allow(clippy::too_many_arguments)]
1893 fn layout_run_indicators(
1894 &self,
1895 line_height: Pixels,
1896 range: Range<DisplayRow>,
1897 scroll_pixel_position: gpui::Point<Pixels>,
1898 gutter_dimensions: &GutterDimensions,
1899 gutter_hitbox: &Hitbox,
1900 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1901 snapshot: &EditorSnapshot,
1902 window: &mut Window,
1903 cx: &mut App,
1904 ) -> Vec<AnyElement> {
1905 self.editor.update(cx, |editor, cx| {
1906 let active_task_indicator_row =
1907 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
1908 deployed_from_indicator,
1909 actions,
1910 ..
1911 })) = editor.context_menu.borrow().as_ref()
1912 {
1913 actions
1914 .tasks
1915 .as_ref()
1916 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1917 .or(*deployed_from_indicator)
1918 } else {
1919 None
1920 };
1921
1922 let offset_range_start = snapshot
1923 .display_point_to_anchor(DisplayPoint::new(range.start, 0), Bias::Left)
1924 .to_offset(&snapshot.buffer_snapshot);
1925 let offset_range_end = snapshot
1926 .display_point_to_anchor(DisplayPoint::new(range.end, 0), Bias::Right)
1927 .to_offset(&snapshot.buffer_snapshot);
1928
1929 editor
1930 .tasks
1931 .iter()
1932 .filter_map(|(_, tasks)| {
1933 if tasks.offset.0 < offset_range_start || tasks.offset.0 >= offset_range_end {
1934 return None;
1935 }
1936 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1937 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1938 let buffer_folded = snapshot
1939 .buffer_snapshot
1940 .buffer_line_for_row(multibuffer_row)
1941 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
1942 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
1943 .unwrap_or(false);
1944 if buffer_folded {
1945 return None;
1946 }
1947
1948 if snapshot.is_line_folded(multibuffer_row) {
1949 // Skip folded indicators, unless it's the starting line of a fold.
1950 if multibuffer_row
1951 .0
1952 .checked_sub(1)
1953 .map_or(false, |previous_row| {
1954 snapshot.is_line_folded(MultiBufferRow(previous_row))
1955 })
1956 {
1957 return None;
1958 }
1959 }
1960 let display_row = multibuffer_point.to_display_point(snapshot).row();
1961 let button = editor.render_run_indicator(
1962 &self.style,
1963 Some(display_row) == active_task_indicator_row,
1964 display_row,
1965 cx,
1966 );
1967
1968 let button = prepaint_gutter_button(
1969 button,
1970 display_row,
1971 line_height,
1972 gutter_dimensions,
1973 scroll_pixel_position,
1974 gutter_hitbox,
1975 rows_with_hunk_bounds,
1976 window,
1977 cx,
1978 );
1979 Some(button)
1980 })
1981 .collect_vec()
1982 })
1983 }
1984
1985 #[allow(clippy::too_many_arguments)]
1986 fn layout_code_actions_indicator(
1987 &self,
1988 line_height: Pixels,
1989 newest_selection_head: DisplayPoint,
1990 scroll_pixel_position: gpui::Point<Pixels>,
1991 gutter_dimensions: &GutterDimensions,
1992 gutter_hitbox: &Hitbox,
1993 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
1994 window: &mut Window,
1995 cx: &mut App,
1996 ) -> Option<AnyElement> {
1997 let mut active = false;
1998 let mut button = None;
1999 let row = newest_selection_head.row();
2000 self.editor.update(cx, |editor, cx| {
2001 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2002 deployed_from_indicator,
2003 ..
2004 })) = editor.context_menu.borrow().as_ref()
2005 {
2006 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
2007 };
2008 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
2009 });
2010
2011 let button = prepaint_gutter_button(
2012 button?,
2013 row,
2014 line_height,
2015 gutter_dimensions,
2016 scroll_pixel_position,
2017 gutter_hitbox,
2018 rows_with_hunk_bounds,
2019 window,
2020 cx,
2021 );
2022
2023 Some(button)
2024 }
2025
2026 fn get_participant_color(participant_index: Option<ParticipantIndex>, cx: &App) -> PlayerColor {
2027 if let Some(index) = participant_index {
2028 cx.theme().players().color_for_participant(index.0)
2029 } else {
2030 cx.theme().players().absent()
2031 }
2032 }
2033
2034 fn calculate_relative_line_numbers(
2035 &self,
2036 snapshot: &EditorSnapshot,
2037 rows: &Range<DisplayRow>,
2038 relative_to: Option<DisplayRow>,
2039 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2040 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2041 let Some(relative_to) = relative_to else {
2042 return relative_rows;
2043 };
2044
2045 let start = rows.start.min(relative_to);
2046 let end = rows.end.max(relative_to);
2047
2048 let buffer_rows = snapshot
2049 .row_infos(start)
2050 .take(1 + end.minus(start) as usize)
2051 .collect::<Vec<_>>();
2052
2053 let head_idx = relative_to.minus(start);
2054 let mut delta = 1;
2055 let mut i = head_idx + 1;
2056 while i < buffer_rows.len() as u32 {
2057 if buffer_rows[i as usize].buffer_row.is_some() {
2058 if rows.contains(&DisplayRow(i + start.0)) {
2059 relative_rows.insert(DisplayRow(i + start.0), delta);
2060 }
2061 delta += 1;
2062 }
2063 i += 1;
2064 }
2065 delta = 1;
2066 i = head_idx.min(buffer_rows.len() as u32 - 1);
2067 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2068 i -= 1;
2069 }
2070
2071 while i > 0 {
2072 i -= 1;
2073 if buffer_rows[i as usize].buffer_row.is_some() {
2074 if rows.contains(&DisplayRow(i + start.0)) {
2075 relative_rows.insert(DisplayRow(i + start.0), delta);
2076 }
2077 delta += 1;
2078 }
2079 }
2080
2081 relative_rows
2082 }
2083
2084 #[allow(clippy::too_many_arguments)]
2085 fn layout_line_numbers(
2086 &self,
2087 gutter_hitbox: Option<&Hitbox>,
2088 gutter_dimensions: GutterDimensions,
2089 line_height: Pixels,
2090 scroll_position: gpui::Point<f32>,
2091 rows: Range<DisplayRow>,
2092 buffer_rows: &[RowInfo],
2093 newest_selection_head: Option<DisplayPoint>,
2094 snapshot: &EditorSnapshot,
2095 window: &mut Window,
2096 cx: &mut App,
2097 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
2098 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
2099 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
2100 });
2101 if !include_line_numbers {
2102 return Arc::default();
2103 }
2104
2105 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
2106 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
2107 let newest = editor.selections.newest::<Point>(cx);
2108 SelectionLayout::new(
2109 newest,
2110 editor.selections.line_mode,
2111 editor.cursor_shape,
2112 &snapshot.display_snapshot,
2113 true,
2114 true,
2115 None,
2116 )
2117 .head
2118 });
2119 let is_relative = editor.should_use_relative_line_numbers(cx);
2120 (newest_selection_head, is_relative)
2121 });
2122
2123 let relative_to = if is_relative {
2124 Some(newest_selection_head.row())
2125 } else {
2126 None
2127 };
2128 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
2129 let mut line_number = String::new();
2130 let line_numbers = buffer_rows
2131 .into_iter()
2132 .enumerate()
2133 .flat_map(|(ix, row_info)| {
2134 let display_row = DisplayRow(rows.start.0 + ix as u32);
2135 line_number.clear();
2136 let non_relative_number = row_info.buffer_row? + 1;
2137 let number = relative_rows
2138 .get(&display_row)
2139 .unwrap_or(&non_relative_number);
2140 write!(&mut line_number, "{number}").unwrap();
2141 if row_info.diff_status == Some(DiffHunkStatus::Removed) {
2142 return None;
2143 }
2144
2145 let color = cx.theme().colors().editor_line_number;
2146 let shaped_line = self
2147 .shape_line_number(SharedString::from(&line_number), color, window)
2148 .log_err()?;
2149 let scroll_top = scroll_position.y * line_height;
2150 let line_origin = gutter_hitbox.map(|hitbox| {
2151 hitbox.origin
2152 + point(
2153 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
2154 ix as f32 * line_height - (scroll_top % line_height),
2155 )
2156 });
2157
2158 #[cfg(not(test))]
2159 let hitbox = line_origin.map(|line_origin| {
2160 window.insert_hitbox(
2161 Bounds::new(line_origin, size(shaped_line.width, line_height)),
2162 false,
2163 )
2164 });
2165 #[cfg(test)]
2166 let hitbox = {
2167 let _ = line_origin;
2168 None
2169 };
2170
2171 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
2172 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
2173 let line_number = LineNumberLayout {
2174 shaped_line,
2175 hitbox,
2176 display_row,
2177 };
2178 Some((multi_buffer_row, line_number))
2179 })
2180 .collect();
2181 Arc::new(line_numbers)
2182 }
2183
2184 fn layout_crease_toggles(
2185 &self,
2186 rows: Range<DisplayRow>,
2187 row_infos: &[RowInfo],
2188 active_rows: &BTreeMap<DisplayRow, bool>,
2189 snapshot: &EditorSnapshot,
2190 window: &mut Window,
2191 cx: &mut App,
2192 ) -> Vec<Option<AnyElement>> {
2193 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
2194 && snapshot.mode == EditorMode::Full
2195 && self.editor.read(cx).is_singleton(cx);
2196 if include_fold_statuses {
2197 row_infos
2198 .into_iter()
2199 .enumerate()
2200 .map(|(ix, info)| {
2201 let row = info.multibuffer_row?;
2202 let display_row = DisplayRow(rows.start.0 + ix as u32);
2203 let active = active_rows.contains_key(&display_row);
2204
2205 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
2206 })
2207 .collect()
2208 } else {
2209 Vec::new()
2210 }
2211 }
2212
2213 fn layout_crease_trailers(
2214 &self,
2215 buffer_rows: impl IntoIterator<Item = RowInfo>,
2216 snapshot: &EditorSnapshot,
2217 window: &mut Window,
2218 cx: &mut App,
2219 ) -> Vec<Option<AnyElement>> {
2220 buffer_rows
2221 .into_iter()
2222 .map(|row_info| {
2223 if let Some(row) = row_info.multibuffer_row {
2224 snapshot.render_crease_trailer(row, window, cx)
2225 } else {
2226 None
2227 }
2228 })
2229 .collect()
2230 }
2231
2232 fn layout_lines(
2233 rows: Range<DisplayRow>,
2234 snapshot: &EditorSnapshot,
2235 style: &EditorStyle,
2236 editor_width: Pixels,
2237 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2238 window: &mut Window,
2239 cx: &mut App,
2240 ) -> Vec<LineWithInvisibles> {
2241 if rows.start >= rows.end {
2242 return Vec::new();
2243 }
2244
2245 // Show the placeholder when the editor is empty
2246 if snapshot.is_empty() {
2247 let font_size = style.text.font_size.to_pixels(window.rem_size());
2248 let placeholder_color = cx.theme().colors().text_placeholder;
2249 let placeholder_text = snapshot.placeholder_text();
2250
2251 let placeholder_lines = placeholder_text
2252 .as_ref()
2253 .map_or("", AsRef::as_ref)
2254 .split('\n')
2255 .skip(rows.start.0 as usize)
2256 .chain(iter::repeat(""))
2257 .take(rows.len());
2258 placeholder_lines
2259 .filter_map(move |line| {
2260 let run = TextRun {
2261 len: line.len(),
2262 font: style.text.font(),
2263 color: placeholder_color,
2264 background_color: None,
2265 underline: Default::default(),
2266 strikethrough: None,
2267 };
2268 window
2269 .text_system()
2270 .shape_line(line.to_string().into(), font_size, &[run])
2271 .log_err()
2272 })
2273 .map(|line| LineWithInvisibles {
2274 width: line.width,
2275 len: line.len,
2276 fragments: smallvec![LineFragment::Text(line)],
2277 invisibles: Vec::new(),
2278 font_size,
2279 })
2280 .collect()
2281 } else {
2282 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
2283 LineWithInvisibles::from_chunks(
2284 chunks,
2285 &style,
2286 MAX_LINE_LEN,
2287 rows.len(),
2288 snapshot.mode,
2289 editor_width,
2290 is_row_soft_wrapped,
2291 window,
2292 cx,
2293 )
2294 }
2295 }
2296
2297 #[allow(clippy::too_many_arguments)]
2298 fn prepaint_lines(
2299 &self,
2300 start_row: DisplayRow,
2301 line_layouts: &mut [LineWithInvisibles],
2302 line_height: Pixels,
2303 scroll_pixel_position: gpui::Point<Pixels>,
2304 content_origin: gpui::Point<Pixels>,
2305 window: &mut Window,
2306 cx: &mut App,
2307 ) -> SmallVec<[AnyElement; 1]> {
2308 let mut line_elements = SmallVec::new();
2309 for (ix, line) in line_layouts.iter_mut().enumerate() {
2310 let row = start_row + DisplayRow(ix as u32);
2311 line.prepaint(
2312 line_height,
2313 scroll_pixel_position,
2314 row,
2315 content_origin,
2316 &mut line_elements,
2317 window,
2318 cx,
2319 );
2320 }
2321 line_elements
2322 }
2323
2324 #[allow(clippy::too_many_arguments)]
2325 fn render_block(
2326 &self,
2327 block: &Block,
2328 available_width: AvailableSpace,
2329 block_id: BlockId,
2330 block_row_start: DisplayRow,
2331 snapshot: &EditorSnapshot,
2332 text_x: Pixels,
2333 rows: &Range<DisplayRow>,
2334 line_layouts: &[LineWithInvisibles],
2335 gutter_dimensions: &GutterDimensions,
2336 line_height: Pixels,
2337 em_width: Pixels,
2338 text_hitbox: &Hitbox,
2339 editor_width: Pixels,
2340 scroll_width: &mut Pixels,
2341 resized_blocks: &mut HashMap<CustomBlockId, u32>,
2342 selections: &[Selection<Point>],
2343 selected_buffer_ids: &Vec<BufferId>,
2344 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2345 sticky_header_excerpt_id: Option<ExcerptId>,
2346 window: &mut Window,
2347 cx: &mut App,
2348 ) -> (AnyElement, Size<Pixels>) {
2349 let mut element = match block {
2350 Block::Custom(block) => {
2351 let block_start = block.start().to_point(&snapshot.buffer_snapshot);
2352 let block_end = block.end().to_point(&snapshot.buffer_snapshot);
2353 let align_to = block_start.to_display_point(snapshot);
2354 let anchor_x = text_x
2355 + if rows.contains(&align_to.row()) {
2356 line_layouts[align_to.row().minus(rows.start) as usize]
2357 .x_for_index(align_to.column() as usize)
2358 } else {
2359 layout_line(
2360 align_to.row(),
2361 snapshot,
2362 &self.style,
2363 editor_width,
2364 is_row_soft_wrapped,
2365 window,
2366 cx,
2367 )
2368 .x_for_index(align_to.column() as usize)
2369 };
2370
2371 let selected = selections
2372 .binary_search_by(|selection| {
2373 if selection.end <= block_start {
2374 Ordering::Less
2375 } else if selection.start >= block_end {
2376 Ordering::Greater
2377 } else {
2378 Ordering::Equal
2379 }
2380 })
2381 .is_ok();
2382
2383 div()
2384 .size_full()
2385 .child(block.render(&mut BlockContext {
2386 window,
2387 app: cx,
2388 anchor_x,
2389 gutter_dimensions,
2390 line_height,
2391 em_width,
2392 block_id,
2393 selected,
2394 max_width: text_hitbox.size.width.max(*scroll_width),
2395 editor_style: &self.style,
2396 }))
2397 .into_any()
2398 }
2399
2400 Block::FoldedBuffer {
2401 first_excerpt,
2402 prev_excerpt,
2403 show_excerpt_controls,
2404 height,
2405 } => {
2406 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
2407 let mut result = v_flex().id(block_id).w_full();
2408
2409 if let Some(prev_excerpt) = prev_excerpt {
2410 if *show_excerpt_controls {
2411 result = result.child(self.render_expand_excerpt_control(
2412 block_id,
2413 ExpandExcerptDirection::Down,
2414 prev_excerpt.id,
2415 gutter_dimensions,
2416 window,
2417 cx,
2418 ));
2419 }
2420 }
2421
2422 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
2423 result
2424 .child(self.render_buffer_header(
2425 first_excerpt,
2426 true,
2427 selected,
2428 jump_data,
2429 window,
2430 cx,
2431 ))
2432 .into_any_element()
2433 }
2434
2435 Block::ExcerptBoundary {
2436 prev_excerpt,
2437 next_excerpt,
2438 show_excerpt_controls,
2439 height,
2440 starts_new_buffer,
2441 } => {
2442 let color = cx.theme().colors().clone();
2443 let mut result = v_flex().id(block_id).w_full();
2444
2445 if let Some(prev_excerpt) = prev_excerpt {
2446 if *show_excerpt_controls {
2447 result = result.child(self.render_expand_excerpt_control(
2448 block_id,
2449 ExpandExcerptDirection::Down,
2450 prev_excerpt.id,
2451 gutter_dimensions,
2452 window,
2453 cx,
2454 ));
2455 }
2456 }
2457
2458 if let Some(next_excerpt) = next_excerpt {
2459 let jump_data =
2460 header_jump_data(snapshot, block_row_start, *height, next_excerpt);
2461
2462 if *starts_new_buffer {
2463 if sticky_header_excerpt_id != Some(next_excerpt.id) {
2464 let selected = selected_buffer_ids.contains(&next_excerpt.buffer_id);
2465
2466 result = result.child(self.render_buffer_header(
2467 next_excerpt,
2468 false,
2469 selected,
2470 jump_data,
2471 window,
2472 cx,
2473 ));
2474 } else {
2475 result = result
2476 .child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
2477 }
2478
2479 if *show_excerpt_controls {
2480 result = result.child(self.render_expand_excerpt_control(
2481 block_id,
2482 ExpandExcerptDirection::Up,
2483 next_excerpt.id,
2484 gutter_dimensions,
2485 window,
2486 cx,
2487 ));
2488 }
2489 } else {
2490 if *show_excerpt_controls {
2491 result = result.child(
2492 h_flex()
2493 .relative()
2494 .child(
2495 div()
2496 .top(px(0.))
2497 .absolute()
2498 .w_full()
2499 .h_px()
2500 .bg(color.border_variant),
2501 )
2502 .child(self.render_expand_excerpt_control(
2503 block_id,
2504 ExpandExcerptDirection::Up,
2505 next_excerpt.id,
2506 gutter_dimensions,
2507 window,
2508 cx,
2509 )),
2510 );
2511 }
2512 };
2513 }
2514
2515 result.into_any()
2516 }
2517 };
2518
2519 // Discover the element's content height, then round up to the nearest multiple of line height.
2520 let preliminary_size = element.layout_as_root(
2521 size(available_width, AvailableSpace::MinContent),
2522 window,
2523 cx,
2524 );
2525 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
2526 let final_size = if preliminary_size.height == quantized_height {
2527 preliminary_size
2528 } else {
2529 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
2530 };
2531
2532 if let BlockId::Custom(custom_block_id) = block_id {
2533 if block.height() > 0 {
2534 let element_height_in_lines =
2535 ((final_size.height / line_height).ceil() as u32).max(1);
2536 if element_height_in_lines != block.height() {
2537 resized_blocks.insert(custom_block_id, element_height_in_lines);
2538 }
2539 }
2540 }
2541
2542 (element, final_size)
2543 }
2544
2545 fn render_buffer_header(
2546 &self,
2547 for_excerpt: &ExcerptInfo,
2548 is_folded: bool,
2549 is_selected: bool,
2550 jump_data: JumpData,
2551 window: &mut Window,
2552 cx: &mut App,
2553 ) -> Div {
2554 let include_root = self
2555 .editor
2556 .read(cx)
2557 .project
2558 .as_ref()
2559 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2560 .unwrap_or_default();
2561 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
2562 let filename = path
2563 .as_ref()
2564 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
2565 let parent_path = path.as_ref().and_then(|path| {
2566 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
2567 });
2568 let focus_handle = self.editor.focus_handle(cx);
2569 let colors = cx.theme().colors();
2570
2571 div()
2572 .px_2()
2573 .pt_2()
2574 .w_full()
2575 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
2576 .child(
2577 h_flex()
2578 .size_full()
2579 .gap_2()
2580 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2581 .pl_0p5()
2582 .pr_5()
2583 .rounded_md()
2584 .shadow_md()
2585 .border_1()
2586 .map(|div| {
2587 let border_color = if is_selected && is_folded {
2588 colors.border_focused
2589 } else {
2590 colors.border
2591 };
2592 div.border_color(border_color)
2593 })
2594 .bg(colors.editor_subheader_background)
2595 .hover(|style| style.bg(colors.element_hover))
2596 .map(|header| {
2597 let editor = self.editor.clone();
2598 let buffer_id = for_excerpt.buffer_id;
2599 let toggle_chevron_icon =
2600 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
2601 header.child(
2602 div()
2603 .hover(|style| style.bg(colors.element_selected))
2604 .rounded_sm()
2605 .child(
2606 ButtonLike::new("toggle-buffer-fold")
2607 .style(ui::ButtonStyle::Transparent)
2608 .size(ButtonSize::Large)
2609 .width(px(30.).into())
2610 .children(toggle_chevron_icon)
2611 .tooltip({
2612 let focus_handle = focus_handle.clone();
2613 move |window, cx| {
2614 Tooltip::for_action_in(
2615 "Toggle Excerpt Fold",
2616 &ToggleFold,
2617 &focus_handle,
2618 window,
2619 cx,
2620 )
2621 }
2622 })
2623 .on_click(move |_, _, cx| {
2624 if is_folded {
2625 editor.update(cx, |editor, cx| {
2626 editor.unfold_buffer(buffer_id, cx);
2627 });
2628 } else {
2629 editor.update(cx, |editor, cx| {
2630 editor.fold_buffer(buffer_id, cx);
2631 });
2632 }
2633 }),
2634 ),
2635 )
2636 })
2637 .children(
2638 self.editor
2639 .read(cx)
2640 .addons
2641 .values()
2642 .filter_map(|addon| {
2643 addon.render_buffer_header_controls(for_excerpt, window, cx)
2644 })
2645 .take(1),
2646 )
2647 .child(
2648 h_flex()
2649 .cursor_pointer()
2650 .id("path header block")
2651 .size_full()
2652 .justify_between()
2653 .child(
2654 h_flex()
2655 .gap_2()
2656 .child(
2657 filename
2658 .map(SharedString::from)
2659 .unwrap_or_else(|| "untitled".into()),
2660 )
2661 .when_some(parent_path, |then, path| {
2662 then.child(div().child(path).text_color(colors.text_muted))
2663 }),
2664 )
2665 .when(is_selected, |el| {
2666 el.child(
2667 h_flex()
2668 .id("jump-to-file-button")
2669 .gap_2p5()
2670 .child(Label::new("Jump To File"))
2671 .children(
2672 KeyBinding::for_action_in(
2673 &OpenExcerpts,
2674 &focus_handle,
2675 window,
2676 )
2677 .map(|binding| binding.into_any_element()),
2678 ),
2679 )
2680 })
2681 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
2682 .on_click(window.listener_for(&self.editor, {
2683 move |editor, e: &ClickEvent, window, cx| {
2684 editor.open_excerpts_common(
2685 Some(jump_data.clone()),
2686 e.down.modifiers.secondary(),
2687 window,
2688 cx,
2689 );
2690 }
2691 })),
2692 ),
2693 )
2694 }
2695
2696 fn render_expand_excerpt_control(
2697 &self,
2698 block_id: BlockId,
2699 direction: ExpandExcerptDirection,
2700 excerpt_id: ExcerptId,
2701 gutter_dimensions: &GutterDimensions,
2702 window: &Window,
2703 cx: &mut App,
2704 ) -> impl IntoElement {
2705 let color = cx.theme().colors().clone();
2706 let hover_color = color.border_variant.opacity(0.5);
2707 let focus_handle = self.editor.focus_handle(cx).clone();
2708
2709 let icon_offset =
2710 gutter_dimensions.width - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2711 let header_height = MULTI_BUFFER_EXCERPT_HEADER_HEIGHT as f32 * window.line_height();
2712 let group_name = if direction == ExpandExcerptDirection::Down {
2713 "expand-down"
2714 } else {
2715 "expand-up"
2716 };
2717
2718 let expand_area = |id: SharedString| {
2719 h_flex()
2720 .id(id)
2721 .w_full()
2722 .cursor_pointer()
2723 .block_mouse_down()
2724 .on_mouse_move(|_, _, cx| cx.stop_propagation())
2725 .hover(|style| style.bg(hover_color))
2726 .tooltip({
2727 let focus_handle = focus_handle.clone();
2728 move |window, cx| {
2729 Tooltip::for_action_in(
2730 "Expand Excerpt",
2731 &ExpandExcerpts { lines: 0 },
2732 &focus_handle,
2733 window,
2734 cx,
2735 )
2736 }
2737 })
2738 };
2739
2740 expand_area(
2741 format!(
2742 "block-{}-{}",
2743 block_id,
2744 if direction == ExpandExcerptDirection::Down {
2745 "down"
2746 } else {
2747 "up"
2748 }
2749 )
2750 .into(),
2751 )
2752 .group(group_name)
2753 .child(
2754 h_flex()
2755 .w(icon_offset)
2756 .h(header_height)
2757 .flex_none()
2758 .justify_end()
2759 .child(
2760 ButtonLike::new("expand-icon")
2761 .style(ButtonStyle::Transparent)
2762 .child(
2763 svg()
2764 .path(if direction == ExpandExcerptDirection::Down {
2765 IconName::ArrowDownFromLine.path()
2766 } else {
2767 IconName::ArrowUpFromLine.path()
2768 })
2769 .size(IconSize::XSmall.rems())
2770 .text_color(cx.theme().colors().editor_line_number)
2771 .group_hover(group_name, |style| {
2772 style.text_color(cx.theme().colors().editor_active_line_number)
2773 }),
2774 ),
2775 ),
2776 )
2777 .on_click(window.listener_for(&self.editor, {
2778 move |editor, _, _, cx| {
2779 editor.expand_excerpt(excerpt_id, direction, cx);
2780 cx.stop_propagation();
2781 }
2782 }))
2783 }
2784
2785 #[allow(clippy::too_many_arguments)]
2786 fn render_blocks(
2787 &self,
2788 rows: Range<DisplayRow>,
2789 snapshot: &EditorSnapshot,
2790 hitbox: &Hitbox,
2791 text_hitbox: &Hitbox,
2792 editor_width: Pixels,
2793 scroll_width: &mut Pixels,
2794 gutter_dimensions: &GutterDimensions,
2795 em_width: Pixels,
2796 text_x: Pixels,
2797 line_height: Pixels,
2798 line_layouts: &[LineWithInvisibles],
2799 selections: &[Selection<Point>],
2800 selected_buffer_ids: &Vec<BufferId>,
2801 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
2802 sticky_header_excerpt_id: Option<ExcerptId>,
2803 window: &mut Window,
2804 cx: &mut App,
2805 ) -> Result<Vec<BlockLayout>, HashMap<CustomBlockId, u32>> {
2806 let (fixed_blocks, non_fixed_blocks) = snapshot
2807 .blocks_in_range(rows.clone())
2808 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
2809
2810 let mut focused_block = self
2811 .editor
2812 .update(cx, |editor, _| editor.take_focused_block());
2813 let mut fixed_block_max_width = Pixels::ZERO;
2814 let mut blocks = Vec::new();
2815 let mut resized_blocks = HashMap::default();
2816
2817 for (row, block) in fixed_blocks {
2818 let block_id = block.id();
2819
2820 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2821 focused_block = None;
2822 }
2823
2824 let (element, element_size) = self.render_block(
2825 block,
2826 AvailableSpace::MinContent,
2827 block_id,
2828 row,
2829 snapshot,
2830 text_x,
2831 &rows,
2832 line_layouts,
2833 gutter_dimensions,
2834 line_height,
2835 em_width,
2836 text_hitbox,
2837 editor_width,
2838 scroll_width,
2839 &mut resized_blocks,
2840 selections,
2841 selected_buffer_ids,
2842 is_row_soft_wrapped,
2843 sticky_header_excerpt_id,
2844 window,
2845 cx,
2846 );
2847 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2848 blocks.push(BlockLayout {
2849 id: block_id,
2850 row: Some(row),
2851 element,
2852 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
2853 style: BlockStyle::Fixed,
2854 });
2855 }
2856
2857 for (row, block) in non_fixed_blocks {
2858 let style = block.style();
2859 let width = match style {
2860 BlockStyle::Sticky => hitbox.size.width,
2861 BlockStyle::Flex => hitbox
2862 .size
2863 .width
2864 .max(fixed_block_max_width)
2865 .max(gutter_dimensions.width + *scroll_width),
2866 BlockStyle::Fixed => unreachable!(),
2867 };
2868 let block_id = block.id();
2869
2870 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
2871 focused_block = None;
2872 }
2873
2874 let (element, element_size) = self.render_block(
2875 block,
2876 width.into(),
2877 block_id,
2878 row,
2879 snapshot,
2880 text_x,
2881 &rows,
2882 line_layouts,
2883 gutter_dimensions,
2884 line_height,
2885 em_width,
2886 text_hitbox,
2887 editor_width,
2888 scroll_width,
2889 &mut resized_blocks,
2890 selections,
2891 selected_buffer_ids,
2892 is_row_soft_wrapped,
2893 sticky_header_excerpt_id,
2894 window,
2895 cx,
2896 );
2897
2898 blocks.push(BlockLayout {
2899 id: block_id,
2900 row: Some(row),
2901 element,
2902 available_space: size(width.into(), element_size.height.into()),
2903 style,
2904 });
2905 }
2906
2907 if let Some(focused_block) = focused_block {
2908 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
2909 if focus_handle.is_focused(window) {
2910 if let Some(block) = snapshot.block_for_id(focused_block.id) {
2911 let style = block.style();
2912 let width = match style {
2913 BlockStyle::Fixed => AvailableSpace::MinContent,
2914 BlockStyle::Flex => AvailableSpace::Definite(
2915 hitbox
2916 .size
2917 .width
2918 .max(fixed_block_max_width)
2919 .max(gutter_dimensions.width + *scroll_width),
2920 ),
2921 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
2922 };
2923
2924 let (element, element_size) = self.render_block(
2925 &block,
2926 width,
2927 focused_block.id,
2928 rows.end,
2929 snapshot,
2930 text_x,
2931 &rows,
2932 line_layouts,
2933 gutter_dimensions,
2934 line_height,
2935 em_width,
2936 text_hitbox,
2937 editor_width,
2938 scroll_width,
2939 &mut resized_blocks,
2940 selections,
2941 selected_buffer_ids,
2942 is_row_soft_wrapped,
2943 sticky_header_excerpt_id,
2944 window,
2945 cx,
2946 );
2947
2948 blocks.push(BlockLayout {
2949 id: block.id(),
2950 row: None,
2951 element,
2952 available_space: size(width, element_size.height.into()),
2953 style,
2954 });
2955 }
2956 }
2957 }
2958 }
2959
2960 if resized_blocks.is_empty() {
2961 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2962 Ok(blocks)
2963 } else {
2964 Err(resized_blocks)
2965 }
2966 }
2967
2968 /// Returns true if any of the blocks changed size since the previous frame. This will trigger
2969 /// a restart of rendering for the editor based on the new sizes.
2970 #[allow(clippy::too_many_arguments)]
2971 fn layout_blocks(
2972 &self,
2973 blocks: &mut Vec<BlockLayout>,
2974 block_starts: &mut HashSet<DisplayRow>,
2975 hitbox: &Hitbox,
2976 line_height: Pixels,
2977 scroll_pixel_position: gpui::Point<Pixels>,
2978 window: &mut Window,
2979 cx: &mut App,
2980 ) {
2981 for block in blocks {
2982 let mut origin = if let Some(row) = block.row {
2983 block_starts.insert(row);
2984 hitbox.origin
2985 + point(
2986 Pixels::ZERO,
2987 row.as_f32() * line_height - scroll_pixel_position.y,
2988 )
2989 } else {
2990 // Position the block outside the visible area
2991 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
2992 };
2993
2994 if !matches!(block.style, BlockStyle::Sticky) {
2995 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2996 }
2997
2998 let focus_handle =
2999 block
3000 .element
3001 .prepaint_as_root(origin, block.available_space, window, cx);
3002
3003 if let Some(focus_handle) = focus_handle {
3004 self.editor.update(cx, |editor, _cx| {
3005 editor.set_focused_block(FocusedBlock {
3006 id: block.id,
3007 focus_handle: focus_handle.downgrade(),
3008 });
3009 });
3010 }
3011 }
3012 }
3013
3014 #[allow(clippy::too_many_arguments)]
3015 fn layout_sticky_buffer_header(
3016 &self,
3017 StickyHeaderExcerpt {
3018 excerpt,
3019 next_excerpt_controls_present,
3020 next_buffer_row,
3021 }: StickyHeaderExcerpt<'_>,
3022 scroll_position: f32,
3023 line_height: Pixels,
3024 snapshot: &EditorSnapshot,
3025 hitbox: &Hitbox,
3026 selected_buffer_ids: &Vec<BufferId>,
3027 window: &mut Window,
3028 cx: &mut App,
3029 ) -> AnyElement {
3030 let jump_data = header_jump_data(
3031 snapshot,
3032 DisplayRow(scroll_position as u32),
3033 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3034 excerpt,
3035 );
3036
3037 let editor_bg_color = cx.theme().colors().editor_background;
3038
3039 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3040
3041 let mut header = v_flex()
3042 .relative()
3043 .child(
3044 div()
3045 .w(hitbox.bounds.size.width)
3046 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3047 .bg(linear_gradient(
3048 0.,
3049 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3050 linear_color_stop(editor_bg_color, 0.6),
3051 ))
3052 .absolute()
3053 .top_0(),
3054 )
3055 .child(
3056 self.render_buffer_header(excerpt, false, selected, jump_data, window, cx)
3057 .into_any_element(),
3058 )
3059 .into_any_element();
3060
3061 let mut origin = hitbox.origin;
3062
3063 if let Some(next_buffer_row) = next_buffer_row {
3064 // Push up the sticky header when the excerpt is getting close to the top of the viewport
3065
3066 let mut max_row = next_buffer_row - FILE_HEADER_HEIGHT * 2;
3067
3068 if next_excerpt_controls_present {
3069 max_row -= MULTI_BUFFER_EXCERPT_HEADER_HEIGHT;
3070 }
3071
3072 let offset = scroll_position - max_row as f32;
3073
3074 if offset > 0.0 {
3075 origin.y -= Pixels(offset) * line_height;
3076 }
3077 }
3078
3079 let size = size(
3080 AvailableSpace::Definite(hitbox.size.width),
3081 AvailableSpace::MinContent,
3082 );
3083
3084 header.prepaint_as_root(origin, size, window, cx);
3085
3086 header
3087 }
3088
3089 #[allow(clippy::too_many_arguments)]
3090 fn layout_cursor_popovers(
3091 &self,
3092 line_height: Pixels,
3093 text_hitbox: &Hitbox,
3094 content_origin: gpui::Point<Pixels>,
3095 start_row: DisplayRow,
3096 scroll_pixel_position: gpui::Point<Pixels>,
3097 line_layouts: &[LineWithInvisibles],
3098 cursor: DisplayPoint,
3099 cursor_point: Point,
3100 style: &EditorStyle,
3101 window: &mut Window,
3102 cx: &mut App,
3103 ) {
3104 let mut min_menu_height = Pixels::ZERO;
3105 let mut max_menu_height = Pixels::ZERO;
3106 let mut height_above_menu = Pixels::ZERO;
3107 let height_below_menu = Pixels::ZERO;
3108 let mut edit_prediction_popover_visible = false;
3109 let mut context_menu_visible = false;
3110
3111 {
3112 let editor = self.editor.read(cx);
3113 if editor.inline_completion_visible_in_cursor_popover(
3114 editor.has_active_inline_completion(),
3115 cx,
3116 ) {
3117 height_above_menu +=
3118 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3119 edit_prediction_popover_visible = true;
3120 }
3121
3122 if editor.context_menu_visible() {
3123 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3124 min_menu_height += line_height * 3. + POPOVER_Y_PADDING;
3125 max_menu_height += line_height * 12. + POPOVER_Y_PADDING;
3126 context_menu_visible = true;
3127 }
3128 }
3129 }
3130
3131 let visible = edit_prediction_popover_visible || context_menu_visible;
3132 if !visible {
3133 return;
3134 }
3135
3136 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
3137 let target_position = content_origin
3138 + gpui::Point {
3139 x: cmp::max(
3140 px(0.),
3141 cursor_row_layout.x_for_index(cursor.column() as usize)
3142 - scroll_pixel_position.x,
3143 ),
3144 y: cmp::max(
3145 px(0.),
3146 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
3147 ),
3148 };
3149
3150 let viewport_bounds =
3151 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3152 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3153 ..Default::default()
3154 });
3155
3156 let min_height = height_above_menu + min_menu_height + height_below_menu;
3157 let max_height = height_above_menu + max_menu_height + height_below_menu;
3158 let Some((laid_out_popovers, y_flipped)) = self.layout_popovers_above_or_below_line(
3159 target_position,
3160 line_height,
3161 min_height,
3162 max_height,
3163 text_hitbox,
3164 viewport_bounds,
3165 window,
3166 cx,
3167 |height, max_width_for_stable_x, y_flipped, window, cx| {
3168 // First layout the menu to get its size - others can be at least this wide.
3169 let context_menu = if context_menu_visible {
3170 let menu_height = if y_flipped {
3171 height - height_below_menu
3172 } else {
3173 height - height_above_menu
3174 };
3175 let mut element = self
3176 .render_context_menu(line_height, menu_height, y_flipped, window, cx)
3177 .expect("Visible context menu should always render.");
3178 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3179 Some((CursorPopoverType::CodeContextMenu, element, size))
3180 } else {
3181 None
3182 };
3183 let min_width = context_menu
3184 .as_ref()
3185 .map_or(px(0.), |(_, _, size)| size.width);
3186 let max_width = max_width_for_stable_x.max(
3187 context_menu
3188 .as_ref()
3189 .map_or(px(0.), |(_, _, size)| size.width),
3190 );
3191
3192 let edit_prediction = if edit_prediction_popover_visible {
3193 let accept_keystroke: Option<Keystroke>;
3194
3195 // TODO: load modifier from keymap.
3196 // `bindings_for_action_in` returns `None` in Linux, and is intermittent on macOS
3197 #[cfg(target_os = "macos")]
3198 {
3199 // let bindings = window.bindings_for_action_in(
3200 // &crate::AcceptEditPrediction,
3201 // &self.editor.focus_handle(cx),
3202 // );
3203
3204 // let last_binding = bindings.last();
3205
3206 // accept_keystroke = if let Some(binding) = last_binding {
3207 // match &binding.keystrokes() {
3208 // // TODO: no need to clone once this logic works on linux.
3209 // [keystroke] => Some(keystroke.clone()),
3210 // _ => None,
3211 // }
3212 // } else {
3213 // None
3214 // };
3215 accept_keystroke = Some(Keystroke {
3216 modifiers: gpui::Modifiers {
3217 alt: true,
3218 ..Default::default()
3219 },
3220 key: "tab".to_string(),
3221 key_char: None,
3222 });
3223 }
3224
3225 #[cfg(not(target_os = "macos"))]
3226 {
3227 accept_keystroke = Some(Keystroke {
3228 modifiers: gpui::Modifiers {
3229 alt: true,
3230 ..Default::default()
3231 },
3232 key: "enter".to_string(),
3233 key_char: None,
3234 });
3235 }
3236
3237 self.editor.update(cx, move |editor, cx| {
3238 let mut element = editor.render_edit_prediction_cursor_popover(
3239 min_width,
3240 max_width,
3241 cursor_point,
3242 style,
3243 accept_keystroke.as_ref()?,
3244 window,
3245 cx,
3246 )?;
3247 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3248 Some((CursorPopoverType::EditPrediction, element, size))
3249 })
3250 } else {
3251 None
3252 };
3253 vec![edit_prediction, context_menu]
3254 .into_iter()
3255 .flatten()
3256 .collect::<Vec<_>>()
3257 },
3258 ) else {
3259 return;
3260 };
3261
3262 let Some((menu_ix, (_, menu_bounds))) = laid_out_popovers
3263 .iter()
3264 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))
3265 else {
3266 return;
3267 };
3268 let last_ix = laid_out_popovers.len() - 1;
3269 let menu_is_last = menu_ix == last_ix;
3270 let first_popover_bounds = laid_out_popovers[0].1;
3271 let last_popover_bounds = laid_out_popovers[last_ix].1;
3272
3273 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
3274 // right, and otherwise it goes below or to the right.
3275 let mut target_bounds = Bounds::from_corners(
3276 first_popover_bounds.origin,
3277 last_popover_bounds.bottom_right(),
3278 );
3279 target_bounds.size.width = menu_bounds.size.width;
3280
3281 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
3282 // based on this is preferred for layout stability.
3283 let mut max_target_bounds = target_bounds;
3284 max_target_bounds.size.height = max_height;
3285 if y_flipped {
3286 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
3287 }
3288
3289 // Add spacing around `target_bounds` and `max_target_bounds`.
3290 let mut extend_amount = Edges::all(MENU_GAP);
3291 if y_flipped {
3292 extend_amount.bottom = line_height;
3293 } else {
3294 extend_amount.top = line_height;
3295 }
3296 let target_bounds = target_bounds.extend(extend_amount);
3297 let max_target_bounds = max_target_bounds.extend(extend_amount);
3298
3299 let must_place_above_or_below =
3300 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
3301 laid_out_popovers[menu_ix + 1..]
3302 .iter()
3303 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
3304 } else {
3305 false
3306 };
3307
3308 self.layout_context_menu_aside(
3309 y_flipped,
3310 *menu_bounds,
3311 target_bounds,
3312 max_target_bounds,
3313 max_menu_height,
3314 must_place_above_or_below,
3315 text_hitbox,
3316 viewport_bounds,
3317 window,
3318 cx,
3319 );
3320 }
3321
3322 #[allow(clippy::too_many_arguments)]
3323 fn layout_gutter_menu(
3324 &self,
3325 line_height: Pixels,
3326 text_hitbox: &Hitbox,
3327 content_origin: gpui::Point<Pixels>,
3328 scroll_pixel_position: gpui::Point<Pixels>,
3329 gutter_overshoot: Pixels,
3330 window: &mut Window,
3331 cx: &mut App,
3332 ) {
3333 let editor = self.editor.read(cx);
3334 if !editor.context_menu_visible() {
3335 return;
3336 }
3337 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
3338 editor.context_menu_origin()
3339 else {
3340 return;
3341 };
3342 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
3343 // indicator than just a plain first column of the text field.
3344 let target_position = content_origin
3345 + gpui::Point {
3346 x: -gutter_overshoot,
3347 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
3348 };
3349 let min_height = line_height * 3. + POPOVER_Y_PADDING;
3350 let max_height = line_height * 12. + POPOVER_Y_PADDING;
3351 let viewport_bounds =
3352 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
3353 right: -Self::SCROLLBAR_WIDTH - MENU_GAP,
3354 ..Default::default()
3355 });
3356 self.layout_popovers_above_or_below_line(
3357 target_position,
3358 line_height,
3359 min_height,
3360 max_height,
3361 text_hitbox,
3362 viewport_bounds,
3363 window,
3364 cx,
3365 move |height, _max_width_for_stable_x, y_flipped, window, cx| {
3366 let mut element = self
3367 .render_context_menu(line_height, height, y_flipped, window, cx)
3368 .expect("Visible context menu should always render.");
3369 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3370 vec![(CursorPopoverType::CodeContextMenu, element, size)]
3371 },
3372 );
3373 }
3374
3375 #[allow(clippy::too_many_arguments)]
3376 fn layout_popovers_above_or_below_line(
3377 &self,
3378 target_position: gpui::Point<Pixels>,
3379 line_height: Pixels,
3380 min_height: Pixels,
3381 max_height: Pixels,
3382 text_hitbox: &Hitbox,
3383 viewport_bounds: Bounds<Pixels>,
3384 window: &mut Window,
3385 cx: &mut App,
3386 make_sized_popovers: impl FnOnce(
3387 Pixels,
3388 Pixels,
3389 bool,
3390 &mut Window,
3391 &mut App,
3392 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
3393 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
3394 // If the max height won't fit below and there is more space above, put it above the line.
3395 let bottom_y_when_flipped = target_position.y - line_height;
3396 let available_above = bottom_y_when_flipped - text_hitbox.top();
3397 let available_below = text_hitbox.bottom() - target_position.y;
3398 let y_overflows_below = max_height > available_below;
3399 let mut y_flipped = y_overflows_below && available_above > available_below;
3400 let mut height = cmp::min(
3401 max_height,
3402 if y_flipped {
3403 available_above
3404 } else {
3405 available_below
3406 },
3407 );
3408
3409 // If the min height doesn't fit within text bounds, instead fit within the window.
3410 if height < min_height {
3411 let available_above = bottom_y_when_flipped;
3412 let available_below = viewport_bounds.bottom() - target_position.y;
3413 if available_below > min_height {
3414 y_flipped = false;
3415 height = min_height;
3416 } else if available_above > min_height {
3417 y_flipped = true;
3418 height = min_height;
3419 } else if available_above > available_below {
3420 y_flipped = true;
3421 height = available_above;
3422 } else {
3423 y_flipped = false;
3424 height = available_below;
3425 }
3426 }
3427
3428 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
3429
3430 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
3431 // for very narrow windows.
3432 let popovers = make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
3433 if popovers.is_empty() {
3434 return None;
3435 }
3436
3437 let max_width = popovers
3438 .iter()
3439 .map(|(_, _, size)| size.width)
3440 .max()
3441 .unwrap_or_default();
3442
3443 let mut current_position = gpui::Point {
3444 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
3445 // overflow. Include space for the scrollbar.
3446 x: target_position
3447 .x
3448 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
3449 y: if y_flipped {
3450 bottom_y_when_flipped
3451 } else {
3452 target_position.y
3453 },
3454 };
3455
3456 let mut laid_out_popovers = popovers
3457 .into_iter()
3458 .map(|(popover_type, element, size)| {
3459 if y_flipped {
3460 current_position.y -= size.height;
3461 }
3462 let position = current_position;
3463 window.defer_draw(element, current_position, 1);
3464 if !y_flipped {
3465 current_position.y += size.height + MENU_GAP;
3466 } else {
3467 current_position.y -= MENU_GAP;
3468 }
3469 (popover_type, Bounds::new(position, size))
3470 })
3471 .collect::<Vec<_>>();
3472
3473 if y_flipped {
3474 laid_out_popovers.reverse();
3475 }
3476
3477 Some((laid_out_popovers, y_flipped))
3478 }
3479
3480 #[allow(clippy::too_many_arguments)]
3481 fn layout_context_menu_aside(
3482 &self,
3483 y_flipped: bool,
3484 menu_bounds: Bounds<Pixels>,
3485 target_bounds: Bounds<Pixels>,
3486 max_target_bounds: Bounds<Pixels>,
3487 max_height: Pixels,
3488 must_place_above_or_below: bool,
3489 text_hitbox: &Hitbox,
3490 viewport_bounds: Bounds<Pixels>,
3491 window: &mut Window,
3492 cx: &mut App,
3493 ) {
3494 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
3495 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
3496 && !must_place_above_or_below
3497 {
3498 let max_width = cmp::min(
3499 available_within_viewport.right - px(1.),
3500 MENU_ASIDE_MAX_WIDTH,
3501 );
3502 let Some(mut aside) =
3503 self.render_context_menu_aside(size(max_width, max_height - POPOVER_Y_PADDING), cx)
3504 else {
3505 return;
3506 };
3507 aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3508 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
3509 Some((aside, right_position))
3510 } else {
3511 let max_size = size(
3512 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
3513 // won't be needed here.
3514 cmp::min(
3515 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
3516 viewport_bounds.right(),
3517 ),
3518 cmp::min(
3519 max_height,
3520 cmp::max(
3521 available_within_viewport.top,
3522 available_within_viewport.bottom,
3523 ),
3524 ) - POPOVER_Y_PADDING,
3525 );
3526 let Some(mut aside) = self.render_context_menu_aside(max_size, cx) else {
3527 return;
3528 };
3529 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
3530
3531 let top_position = point(
3532 menu_bounds.origin.x,
3533 target_bounds.top() - actual_size.height,
3534 );
3535 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
3536
3537 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
3538 // Prefer to fit on the same side of the line as the menu, then on the other side of
3539 // the line.
3540 if !y_flipped && wanted.height < available.bottom {
3541 Some(bottom_position)
3542 } else if !y_flipped && wanted.height < available.top {
3543 Some(top_position)
3544 } else if y_flipped && wanted.height < available.top {
3545 Some(top_position)
3546 } else if y_flipped && wanted.height < available.bottom {
3547 Some(bottom_position)
3548 } else {
3549 None
3550 }
3551 };
3552
3553 // Prefer choosing a direction using max sizes rather than actual size for stability.
3554 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
3555 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
3556 let aside_position = fit_within(available_within_text, wanted)
3557 // Fallback: fit max size in window.
3558 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
3559 // Fallback: fit actual size in window.
3560 .or_else(|| fit_within(available_within_viewport, actual_size));
3561
3562 aside_position.map(|position| (aside, position))
3563 };
3564
3565 // Skip drawing if it doesn't fit anywhere.
3566 if let Some((aside, position)) = positioned_aside {
3567 window.defer_draw(aside, position, 1);
3568 }
3569 }
3570
3571 fn render_context_menu(
3572 &self,
3573 line_height: Pixels,
3574 height: Pixels,
3575 y_flipped: bool,
3576 window: &mut Window,
3577 cx: &mut App,
3578 ) -> Option<AnyElement> {
3579 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
3580 self.editor.update(cx, |editor, cx| {
3581 editor.render_context_menu(&self.style, max_height_in_lines, y_flipped, window, cx)
3582 })
3583 }
3584
3585 fn render_context_menu_aside(
3586 &self,
3587 max_size: Size<Pixels>,
3588
3589 cx: &mut App,
3590 ) -> Option<AnyElement> {
3591 if max_size.width < px(100.) || max_size.height < px(12.) {
3592 None
3593 } else {
3594 self.editor.update(cx, |editor, cx| {
3595 editor.render_context_menu_aside(&self.style, max_size, cx)
3596 })
3597 }
3598 }
3599
3600 #[allow(clippy::too_many_arguments)]
3601 fn layout_inline_completion_popover(
3602 &self,
3603 text_bounds: &Bounds<Pixels>,
3604 editor_snapshot: &EditorSnapshot,
3605 visible_row_range: Range<DisplayRow>,
3606 scroll_top: f32,
3607 scroll_bottom: f32,
3608 line_layouts: &[LineWithInvisibles],
3609 line_height: Pixels,
3610 scroll_pixel_position: gpui::Point<Pixels>,
3611 newest_selection_head: Option<DisplayPoint>,
3612 editor_width: Pixels,
3613 style: &EditorStyle,
3614 window: &mut Window,
3615 cx: &mut App,
3616 ) -> Option<AnyElement> {
3617 const PADDING_X: Pixels = Pixels(24.);
3618 const PADDING_Y: Pixels = Pixels(2.);
3619
3620 let editor = self.editor.read(cx);
3621 let active_inline_completion = editor.active_inline_completion.as_ref()?;
3622
3623 if editor.inline_completion_visible_in_cursor_popover(true, cx) {
3624 return None;
3625 }
3626
3627 match &active_inline_completion.completion {
3628 InlineCompletion::Move { target, .. } => {
3629 let previewing = false;
3630 let target_display_point = target.to_display_point(editor_snapshot);
3631 if target_display_point.row().as_f32() < scroll_top {
3632 let mut element = inline_completion_accept_indicator(
3633 "Jump to Edit",
3634 Some(IconName::ArrowUp),
3635 previewing,
3636 self.editor.focus_handle(cx),
3637 window,
3638 cx,
3639 )?;
3640 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3641 let offset = point((text_bounds.size.width - size.width) / 2., PADDING_Y);
3642 element.prepaint_at(text_bounds.origin + offset, window, cx);
3643 Some(element)
3644 } else if (target_display_point.row().as_f32() + 1.) > scroll_bottom {
3645 let mut element = inline_completion_accept_indicator(
3646 "Jump to Edit",
3647 Some(IconName::ArrowDown),
3648 previewing,
3649 self.editor.focus_handle(cx),
3650 window,
3651 cx,
3652 )?;
3653 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3654 let offset = point(
3655 (text_bounds.size.width - size.width) / 2.,
3656 text_bounds.size.height - size.height - PADDING_Y,
3657 );
3658 element.prepaint_at(text_bounds.origin + offset, window, cx);
3659 Some(element)
3660 } else {
3661 let mut element = inline_completion_accept_indicator(
3662 "Jump to Edit",
3663 None,
3664 previewing,
3665 self.editor.focus_handle(cx),
3666 window,
3667 cx,
3668 )?;
3669
3670 let target_line_end = DisplayPoint::new(
3671 target_display_point.row(),
3672 editor_snapshot.line_len(target_display_point.row()),
3673 );
3674 let origin = self.editor.update(cx, |editor, _cx| {
3675 editor.display_to_pixel_point(target_line_end, editor_snapshot, window)
3676 })?;
3677 element.prepaint_as_root(
3678 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3679 AvailableSpace::min_size(),
3680 window,
3681 cx,
3682 );
3683 Some(element)
3684 }
3685 }
3686 InlineCompletion::Edit {
3687 edits,
3688 edit_preview,
3689 display_mode,
3690 snapshot,
3691 } => {
3692 if self.editor.read(cx).has_visible_completions_menu() {
3693 return None;
3694 }
3695
3696 let edit_start = edits
3697 .first()
3698 .unwrap()
3699 .0
3700 .start
3701 .to_display_point(editor_snapshot);
3702 let edit_end = edits
3703 .last()
3704 .unwrap()
3705 .0
3706 .end
3707 .to_display_point(editor_snapshot);
3708
3709 let is_visible = visible_row_range.contains(&edit_start.row())
3710 || visible_row_range.contains(&edit_end.row());
3711 if !is_visible {
3712 return None;
3713 }
3714
3715 match display_mode {
3716 EditDisplayMode::TabAccept => {
3717 let range = &edits.first()?.0;
3718 let target_display_point = range.end.to_display_point(editor_snapshot);
3719
3720 let target_line_end = DisplayPoint::new(
3721 target_display_point.row(),
3722 editor_snapshot.line_len(target_display_point.row()),
3723 );
3724 let (previewing_inline_completion, origin) =
3725 self.editor.update(cx, |editor, _cx| {
3726 Some((
3727 editor.previewing_inline_completion,
3728 editor.display_to_pixel_point(
3729 target_line_end,
3730 editor_snapshot,
3731 window,
3732 )?,
3733 ))
3734 })?;
3735
3736 let mut element = inline_completion_accept_indicator(
3737 "Accept",
3738 None,
3739 previewing_inline_completion,
3740 self.editor.focus_handle(cx),
3741 window,
3742 cx,
3743 )?;
3744
3745 element.prepaint_as_root(
3746 text_bounds.origin + origin + point(PADDING_X, px(0.)),
3747 AvailableSpace::min_size(),
3748 window,
3749 cx,
3750 );
3751
3752 return Some(element);
3753 }
3754 EditDisplayMode::Inline => return None,
3755 EditDisplayMode::DiffPopover => {}
3756 }
3757
3758 let highlighted_edits = crate::inline_completion_edit_text(
3759 &snapshot,
3760 edits,
3761 edit_preview.as_ref()?,
3762 false,
3763 cx,
3764 );
3765
3766 let line_count = highlighted_edits.text.lines().count();
3767
3768 let longest_row =
3769 editor_snapshot.longest_row_in_range(edit_start.row()..edit_end.row() + 1);
3770 let longest_line_width = if visible_row_range.contains(&longest_row) {
3771 line_layouts[(longest_row.0 - visible_row_range.start.0) as usize].width
3772 } else {
3773 layout_line(
3774 longest_row,
3775 editor_snapshot,
3776 style,
3777 editor_width,
3778 |_| false,
3779 window,
3780 cx,
3781 )
3782 .width
3783 };
3784
3785 let styled_text = highlighted_edits.to_styled_text(&style.text);
3786
3787 let mut element = div()
3788 .bg(cx.theme().colors().editor_background)
3789 .border_1()
3790 .border_color(cx.theme().colors().border)
3791 .rounded_md()
3792 .child(styled_text)
3793 .into_any();
3794
3795 let viewport_bounds = Bounds::new(Default::default(), window.viewport_size())
3796 .extend(Edges {
3797 right: -Self::SCROLLBAR_WIDTH,
3798 ..Default::default()
3799 });
3800
3801 let x_after_longest =
3802 text_bounds.origin.x + longest_line_width + PADDING_X - scroll_pixel_position.x;
3803
3804 let element_bounds = element.layout_as_root(AvailableSpace::min_size(), window, cx);
3805
3806 // Fully visible if it can be displayed within the window (allow overlapping other
3807 // panes). However, this is only allowed if the popover starts within text_bounds.
3808 let is_fully_visible = x_after_longest < text_bounds.right()
3809 && x_after_longest + element_bounds.width < viewport_bounds.right();
3810
3811 let origin = if is_fully_visible {
3812 point(
3813 x_after_longest,
3814 text_bounds.origin.y + edit_start.row().as_f32() * line_height
3815 - scroll_pixel_position.y,
3816 )
3817 } else {
3818 // Avoid overlapping both the edited rows and the user's cursor.
3819 let target_above = DisplayRow(
3820 edit_start
3821 .row()
3822 .0
3823 .min(
3824 newest_selection_head
3825 .map_or(u32::MAX, |cursor_row| cursor_row.row().0),
3826 )
3827 .saturating_sub(line_count as u32),
3828 );
3829 let mut row_target;
3830 if visible_row_range.contains(&DisplayRow(target_above.0.saturating_sub(1))) {
3831 row_target = target_above;
3832 } else {
3833 row_target = DisplayRow(
3834 edit_end.row().0.max(
3835 newest_selection_head.map_or(0, |cursor_row| cursor_row.row().0),
3836 ) + 1,
3837 );
3838 if !visible_row_range.contains(&row_target) {
3839 // Not visible, so fallback on displaying immediately below the cursor.
3840 if let Some(cursor) = newest_selection_head {
3841 row_target = DisplayRow(cursor.row().0 + 1);
3842 } else {
3843 // Not visible and no cursor visible, so fallback on displaying at the top of the editor.
3844 row_target = DisplayRow(0);
3845 }
3846 }
3847 };
3848
3849 text_bounds.origin
3850 + point(
3851 -scroll_pixel_position.x,
3852 row_target.as_f32() * line_height - scroll_pixel_position.y,
3853 )
3854 };
3855
3856 window.defer_draw(element, origin, 1);
3857
3858 // Do not return an element, since it will already be drawn due to defer_draw.
3859 None
3860 }
3861 }
3862 }
3863
3864 fn layout_mouse_context_menu(
3865 &self,
3866 editor_snapshot: &EditorSnapshot,
3867 visible_range: Range<DisplayRow>,
3868 content_origin: gpui::Point<Pixels>,
3869 window: &mut Window,
3870 cx: &mut App,
3871 ) -> Option<AnyElement> {
3872 let position = self.editor.update(cx, |editor, _cx| {
3873 let visible_start_point = editor.display_to_pixel_point(
3874 DisplayPoint::new(visible_range.start, 0),
3875 editor_snapshot,
3876 window,
3877 )?;
3878 let visible_end_point = editor.display_to_pixel_point(
3879 DisplayPoint::new(visible_range.end, 0),
3880 editor_snapshot,
3881 window,
3882 )?;
3883
3884 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3885 let (source_display_point, position) = match mouse_context_menu.position {
3886 MenuPosition::PinnedToScreen(point) => (None, point),
3887 MenuPosition::PinnedToEditor { source, offset } => {
3888 let source_display_point = source.to_display_point(editor_snapshot);
3889 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
3890 let position = content_origin + source_point + offset;
3891 (Some(source_display_point), position)
3892 }
3893 };
3894
3895 let source_included = source_display_point.map_or(true, |source_display_point| {
3896 visible_range
3897 .to_inclusive()
3898 .contains(&source_display_point.row())
3899 });
3900 let position_included =
3901 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
3902 if !source_included && !position_included {
3903 None
3904 } else {
3905 Some(position)
3906 }
3907 })?;
3908
3909 let mut element = self.editor.update(cx, |editor, _| {
3910 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
3911 let context_menu = mouse_context_menu.context_menu.clone();
3912
3913 Some(
3914 deferred(
3915 anchored()
3916 .position(position)
3917 .child(context_menu)
3918 .anchor(Corner::TopLeft)
3919 .snap_to_window_with_margin(px(8.)),
3920 )
3921 .with_priority(1)
3922 .into_any(),
3923 )
3924 })?;
3925
3926 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
3927 Some(element)
3928 }
3929
3930 #[allow(clippy::too_many_arguments)]
3931 fn layout_hover_popovers(
3932 &self,
3933 snapshot: &EditorSnapshot,
3934 hitbox: &Hitbox,
3935 text_hitbox: &Hitbox,
3936 visible_display_row_range: Range<DisplayRow>,
3937 content_origin: gpui::Point<Pixels>,
3938 scroll_pixel_position: gpui::Point<Pixels>,
3939 line_layouts: &[LineWithInvisibles],
3940 line_height: Pixels,
3941 em_width: Pixels,
3942 window: &mut Window,
3943 cx: &mut App,
3944 ) {
3945 struct MeasuredHoverPopover {
3946 element: AnyElement,
3947 size: Size<Pixels>,
3948 horizontal_offset: Pixels,
3949 }
3950
3951 let max_size = size(
3952 (120. * em_width) // Default size
3953 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
3954 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3955 (16. * line_height) // Default size
3956 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
3957 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3958 );
3959
3960 let hover_popovers = self.editor.update(cx, |editor, cx| {
3961 editor
3962 .hover_state
3963 .render(snapshot, visible_display_row_range.clone(), max_size, cx)
3964 });
3965 let Some((position, hover_popovers)) = hover_popovers else {
3966 return;
3967 };
3968
3969 // This is safe because we check on layout whether the required row is available
3970 let hovered_row_layout =
3971 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
3972
3973 // Compute Hovered Point
3974 let x =
3975 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
3976 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
3977 let hovered_point = content_origin + point(x, y);
3978
3979 let mut overall_height = Pixels::ZERO;
3980 let mut measured_hover_popovers = Vec::new();
3981 for mut hover_popover in hover_popovers {
3982 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
3983 let horizontal_offset =
3984 (text_hitbox.top_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
3985
3986 overall_height += HOVER_POPOVER_GAP + size.height;
3987
3988 measured_hover_popovers.push(MeasuredHoverPopover {
3989 element: hover_popover,
3990 size,
3991 horizontal_offset,
3992 });
3993 }
3994 overall_height += HOVER_POPOVER_GAP;
3995
3996 fn draw_occluder(
3997 width: Pixels,
3998 origin: gpui::Point<Pixels>,
3999 window: &mut Window,
4000 cx: &mut App,
4001 ) {
4002 let mut occlusion = div()
4003 .size_full()
4004 .occlude()
4005 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4006 .into_any_element();
4007 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4008 window.defer_draw(occlusion, origin, 2);
4009 }
4010
4011 if hovered_point.y > overall_height {
4012 // There is enough space above. Render popovers above the hovered point
4013 let mut current_y = hovered_point.y;
4014 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4015 let size = popover.size;
4016 let popover_origin = point(
4017 hovered_point.x + popover.horizontal_offset,
4018 current_y - size.height,
4019 );
4020
4021 window.defer_draw(popover.element, popover_origin, 2);
4022 if position != itertools::Position::Last {
4023 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4024 draw_occluder(size.width, origin, window, cx);
4025 }
4026
4027 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4028 }
4029 } else {
4030 // There is not enough space above. Render popovers below the hovered point
4031 let mut current_y = hovered_point.y + line_height;
4032 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4033 let size = popover.size;
4034 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4035
4036 window.defer_draw(popover.element, popover_origin, 2);
4037 if position != itertools::Position::Last {
4038 let origin = point(popover_origin.x, popover_origin.y + size.height);
4039 draw_occluder(size.width, origin, window, cx);
4040 }
4041
4042 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4043 }
4044 }
4045 }
4046
4047 #[allow(clippy::too_many_arguments)]
4048 fn layout_diff_hunk_controls(
4049 &self,
4050 row_range: Range<DisplayRow>,
4051 row_infos: &[RowInfo],
4052 text_hitbox: &Hitbox,
4053 position_map: &PositionMap,
4054 newest_cursor_position: Option<DisplayPoint>,
4055 line_height: Pixels,
4056 scroll_pixel_position: gpui::Point<Pixels>,
4057 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4058 editor: Entity<Editor>,
4059 window: &mut Window,
4060 cx: &mut App,
4061 ) -> Vec<AnyElement> {
4062 let point_for_position = position_map.point_for_position(window.mouse_position());
4063
4064 let mut controls = vec![];
4065
4066 let active_positions = [
4067 Some(point_for_position.previous_valid),
4068 newest_cursor_position,
4069 ];
4070
4071 for (hunk, _) in display_hunks {
4072 if let DisplayDiffHunk::Unfolded {
4073 display_row_range,
4074 multi_buffer_range,
4075 status,
4076 ..
4077 } = &hunk
4078 {
4079 if display_row_range.start < row_range.start
4080 || display_row_range.start >= row_range.end
4081 {
4082 continue;
4083 }
4084 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4085 if row_infos[row_ix].diff_status.is_none() {
4086 continue;
4087 }
4088 if row_infos[row_ix].diff_status == Some(DiffHunkStatus::Added)
4089 && *status != DiffHunkStatus::Added
4090 {
4091 continue;
4092 }
4093 if active_positions
4094 .iter()
4095 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4096 {
4097 let y = display_row_range.start.as_f32() * line_height
4098 + text_hitbox.bounds.top()
4099 - scroll_pixel_position.y;
4100 let x = text_hitbox.bounds.right() - px(100.);
4101
4102 let mut element = diff_hunk_controls(
4103 display_row_range.start.0,
4104 multi_buffer_range.clone(),
4105 line_height,
4106 &editor,
4107 cx,
4108 );
4109 element.prepaint_as_root(
4110 gpui::Point::new(x, y),
4111 size(px(100.0), line_height).into(),
4112 window,
4113 cx,
4114 );
4115 controls.push(element);
4116 }
4117 }
4118 }
4119
4120 controls
4121 }
4122
4123 #[allow(clippy::too_many_arguments)]
4124 fn layout_signature_help(
4125 &self,
4126 hitbox: &Hitbox,
4127 content_origin: gpui::Point<Pixels>,
4128 scroll_pixel_position: gpui::Point<Pixels>,
4129 newest_selection_head: Option<DisplayPoint>,
4130 start_row: DisplayRow,
4131 line_layouts: &[LineWithInvisibles],
4132 line_height: Pixels,
4133 em_width: Pixels,
4134 window: &mut Window,
4135 cx: &mut App,
4136 ) {
4137 if !self.editor.focus_handle(cx).is_focused(window) {
4138 return;
4139 }
4140 let Some(newest_selection_head) = newest_selection_head else {
4141 return;
4142 };
4143 let selection_row = newest_selection_head.row();
4144 if selection_row < start_row {
4145 return;
4146 }
4147 let Some(cursor_row_layout) = line_layouts.get(selection_row.minus(start_row) as usize)
4148 else {
4149 return;
4150 };
4151
4152 let start_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4153 - scroll_pixel_position.x
4154 + content_origin.x;
4155 let start_y =
4156 selection_row.as_f32() * line_height + content_origin.y - scroll_pixel_position.y;
4157
4158 let max_size = size(
4159 (120. * em_width) // Default size
4160 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4161 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4162 (16. * line_height) // Default size
4163 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4164 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4165 );
4166
4167 let maybe_element = self.editor.update(cx, |editor, cx| {
4168 if let Some(popover) = editor.signature_help_state.popover_mut() {
4169 let element = popover.render(
4170 &self.style,
4171 max_size,
4172 editor.workspace.as_ref().map(|(w, _)| w.clone()),
4173 cx,
4174 );
4175 Some(element)
4176 } else {
4177 None
4178 }
4179 });
4180 if let Some(mut element) = maybe_element {
4181 let window_size = window.viewport_size();
4182 let size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4183 let mut point = point(start_x, start_y - size.height);
4184
4185 // Adjusting to ensure the popover does not overflow in the X-axis direction.
4186 if point.x + size.width >= window_size.width {
4187 point.x = window_size.width - size.width;
4188 }
4189
4190 window.defer_draw(element, point, 1)
4191 }
4192 }
4193
4194 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
4195 window.paint_layer(layout.hitbox.bounds, |window| {
4196 let scroll_top = layout.position_map.snapshot.scroll_position().y;
4197 let gutter_bg = cx.theme().colors().editor_gutter_background;
4198 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
4199 window.paint_quad(fill(
4200 layout.position_map.text_hitbox.bounds,
4201 self.style.background,
4202 ));
4203
4204 if let EditorMode::Full = layout.mode {
4205 let mut active_rows = layout.active_rows.iter().peekable();
4206 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
4207 let mut end_row = start_row.0;
4208 while active_rows
4209 .peek()
4210 .map_or(false, |(active_row, has_selection)| {
4211 active_row.0 == end_row + 1
4212 && *has_selection == contains_non_empty_selection
4213 })
4214 {
4215 active_rows.next().unwrap();
4216 end_row += 1;
4217 }
4218
4219 if !contains_non_empty_selection {
4220 let highlight_h_range =
4221 match layout.position_map.snapshot.current_line_highlight {
4222 CurrentLineHighlight::Gutter => Some(Range {
4223 start: layout.hitbox.left(),
4224 end: layout.gutter_hitbox.right(),
4225 }),
4226 CurrentLineHighlight::Line => Some(Range {
4227 start: layout.position_map.text_hitbox.bounds.left(),
4228 end: layout.position_map.text_hitbox.bounds.right(),
4229 }),
4230 CurrentLineHighlight::All => Some(Range {
4231 start: layout.hitbox.left(),
4232 end: layout.hitbox.right(),
4233 }),
4234 CurrentLineHighlight::None => None,
4235 };
4236 if let Some(range) = highlight_h_range {
4237 let active_line_bg = cx.theme().colors().editor_active_line_background;
4238 let bounds = Bounds {
4239 origin: point(
4240 range.start,
4241 layout.hitbox.origin.y
4242 + (start_row.as_f32() - scroll_top)
4243 * layout.position_map.line_height,
4244 ),
4245 size: size(
4246 range.end - range.start,
4247 layout.position_map.line_height
4248 * (end_row - start_row.0 + 1) as f32,
4249 ),
4250 };
4251 window.paint_quad(fill(bounds, active_line_bg));
4252 }
4253 }
4254 }
4255
4256 let mut paint_highlight =
4257 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
4258 let origin = point(
4259 layout.hitbox.origin.x,
4260 layout.hitbox.origin.y
4261 + (highlight_row_start.as_f32() - scroll_top)
4262 * layout.position_map.line_height,
4263 );
4264 let size = size(
4265 layout.hitbox.size.width,
4266 layout.position_map.line_height
4267 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
4268 );
4269 window.paint_quad(fill(Bounds { origin, size }, color));
4270 };
4271
4272 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
4273 for (&new_row, &new_color) in &layout.highlighted_rows {
4274 match &mut current_paint {
4275 Some((current_color, current_range)) => {
4276 let current_color = *current_color;
4277 let new_range_started = current_color != new_color
4278 || current_range.end.next_row() != new_row;
4279 if new_range_started {
4280 paint_highlight(
4281 current_range.start,
4282 current_range.end,
4283 current_color,
4284 );
4285 current_paint = Some((new_color, new_row..new_row));
4286 continue;
4287 } else {
4288 current_range.end = current_range.end.next_row();
4289 }
4290 }
4291 None => current_paint = Some((new_color, new_row..new_row)),
4292 };
4293 }
4294 if let Some((color, range)) = current_paint {
4295 paint_highlight(range.start, range.end, color);
4296 }
4297
4298 let scroll_left =
4299 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
4300
4301 for (wrap_position, active) in layout.wrap_guides.iter() {
4302 let x = (layout.position_map.text_hitbox.origin.x
4303 + *wrap_position
4304 + layout.position_map.em_width / 2.)
4305 - scroll_left;
4306
4307 let show_scrollbars = {
4308 let (scrollbar_x, scrollbar_y) = &layout.scrollbars_layout.as_xy();
4309
4310 scrollbar_x.as_ref().map_or(false, |sx| sx.visible)
4311 || scrollbar_y.as_ref().map_or(false, |sy| sy.visible)
4312 };
4313
4314 if x < layout.position_map.text_hitbox.origin.x
4315 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
4316 {
4317 continue;
4318 }
4319
4320 let color = if *active {
4321 cx.theme().colors().editor_active_wrap_guide
4322 } else {
4323 cx.theme().colors().editor_wrap_guide
4324 };
4325 window.paint_quad(fill(
4326 Bounds {
4327 origin: point(x, layout.position_map.text_hitbox.origin.y),
4328 size: size(px(1.), layout.position_map.text_hitbox.size.height),
4329 },
4330 color,
4331 ));
4332 }
4333 }
4334 })
4335 }
4336
4337 fn paint_indent_guides(
4338 &mut self,
4339 layout: &mut EditorLayout,
4340 window: &mut Window,
4341 cx: &mut App,
4342 ) {
4343 let Some(indent_guides) = &layout.indent_guides else {
4344 return;
4345 };
4346
4347 let faded_color = |color: Hsla, alpha: f32| {
4348 let mut faded = color;
4349 faded.a = alpha;
4350 faded
4351 };
4352
4353 for indent_guide in indent_guides {
4354 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
4355 let settings = indent_guide.settings;
4356
4357 // TODO fixed for now, expose them through themes later
4358 const INDENT_AWARE_ALPHA: f32 = 0.2;
4359 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
4360 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
4361 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
4362
4363 let line_color = match (settings.coloring, indent_guide.active) {
4364 (IndentGuideColoring::Disabled, _) => None,
4365 (IndentGuideColoring::Fixed, false) => {
4366 Some(cx.theme().colors().editor_indent_guide)
4367 }
4368 (IndentGuideColoring::Fixed, true) => {
4369 Some(cx.theme().colors().editor_indent_guide_active)
4370 }
4371 (IndentGuideColoring::IndentAware, false) => {
4372 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
4373 }
4374 (IndentGuideColoring::IndentAware, true) => {
4375 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
4376 }
4377 };
4378
4379 let background_color = match (settings.background_coloring, indent_guide.active) {
4380 (IndentGuideBackgroundColoring::Disabled, _) => None,
4381 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
4382 indent_accent_colors,
4383 INDENT_AWARE_BACKGROUND_ALPHA,
4384 )),
4385 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
4386 indent_accent_colors,
4387 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
4388 )),
4389 };
4390
4391 let requested_line_width = if indent_guide.active {
4392 settings.active_line_width
4393 } else {
4394 settings.line_width
4395 }
4396 .clamp(1, 10);
4397 let mut line_indicator_width = 0.;
4398 if let Some(color) = line_color {
4399 window.paint_quad(fill(
4400 Bounds {
4401 origin: indent_guide.origin,
4402 size: size(px(requested_line_width as f32), indent_guide.length),
4403 },
4404 color,
4405 ));
4406 line_indicator_width = requested_line_width as f32;
4407 }
4408
4409 if let Some(color) = background_color {
4410 let width = indent_guide.single_indent_width - px(line_indicator_width);
4411 window.paint_quad(fill(
4412 Bounds {
4413 origin: point(
4414 indent_guide.origin.x + px(line_indicator_width),
4415 indent_guide.origin.y,
4416 ),
4417 size: size(width, indent_guide.length),
4418 },
4419 color,
4420 ));
4421 }
4422 }
4423 }
4424
4425 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4426 let is_singleton = self.editor.read(cx).is_singleton(cx);
4427
4428 let line_height = layout.position_map.line_height;
4429 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
4430
4431 for LineNumberLayout {
4432 shaped_line,
4433 hitbox,
4434 display_row,
4435 } in layout.line_numbers.values()
4436 {
4437 let Some(hitbox) = hitbox else {
4438 continue;
4439 };
4440
4441 let is_active = layout.active_rows.contains_key(&display_row);
4442
4443 let color = if is_active {
4444 cx.theme().colors().editor_active_line_number
4445 } else if !is_singleton && hitbox.is_hovered(window) {
4446 cx.theme().colors().editor_hover_line_number
4447 } else {
4448 cx.theme().colors().editor_line_number
4449 };
4450
4451 let Some(line) = self
4452 .shape_line_number(shaped_line.text.clone(), color, window)
4453 .log_err()
4454 else {
4455 continue;
4456 };
4457 let Some(()) = line.paint(hitbox.origin, line_height, window, cx).log_err() else {
4458 continue;
4459 };
4460 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
4461 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
4462 if is_singleton {
4463 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
4464 } else {
4465 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
4466 }
4467 }
4468 }
4469
4470 fn paint_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4471 if layout.display_hunks.is_empty() {
4472 return;
4473 }
4474
4475 let line_height = layout.position_map.line_height;
4476 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4477 for (hunk, hitbox) in &layout.display_hunks {
4478 let hunk_to_paint = match hunk {
4479 DisplayDiffHunk::Folded { .. } => {
4480 let hunk_bounds = Self::diff_hunk_bounds(
4481 &layout.position_map.snapshot,
4482 line_height,
4483 layout.gutter_hitbox.bounds,
4484 hunk,
4485 );
4486 Some((
4487 hunk_bounds,
4488 cx.theme().status().modified,
4489 Corners::all(px(0.)),
4490 ))
4491 }
4492 DisplayDiffHunk::Unfolded {
4493 status,
4494 display_row_range,
4495 ..
4496 } => hitbox.as_ref().map(|hunk_hitbox| match status {
4497 DiffHunkStatus::Added => (
4498 hunk_hitbox.bounds,
4499 cx.theme().status().created,
4500 Corners::all(px(0.)),
4501 ),
4502 DiffHunkStatus::Modified => (
4503 hunk_hitbox.bounds,
4504 cx.theme().status().modified,
4505 Corners::all(px(0.)),
4506 ),
4507 DiffHunkStatus::Removed if !display_row_range.is_empty() => (
4508 hunk_hitbox.bounds,
4509 cx.theme().status().deleted,
4510 Corners::all(px(0.)),
4511 ),
4512 DiffHunkStatus::Removed => (
4513 Bounds::new(
4514 point(
4515 hunk_hitbox.origin.x - hunk_hitbox.size.width,
4516 hunk_hitbox.origin.y,
4517 ),
4518 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
4519 ),
4520 cx.theme().status().deleted,
4521 Corners::all(1. * line_height),
4522 ),
4523 }),
4524 };
4525
4526 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
4527 window.paint_quad(quad(
4528 hunk_bounds,
4529 corner_radii,
4530 background_color,
4531 Edges::default(),
4532 transparent_black(),
4533 ));
4534 }
4535 }
4536 });
4537 }
4538
4539 fn diff_hunk_bounds(
4540 snapshot: &EditorSnapshot,
4541 line_height: Pixels,
4542 gutter_bounds: Bounds<Pixels>,
4543 hunk: &DisplayDiffHunk,
4544 ) -> Bounds<Pixels> {
4545 let scroll_position = snapshot.scroll_position();
4546 let scroll_top = scroll_position.y * line_height;
4547 let gutter_strip_width = (0.275 * line_height).floor();
4548
4549 match hunk {
4550 DisplayDiffHunk::Folded { display_row, .. } => {
4551 let start_y = display_row.as_f32() * line_height - scroll_top;
4552 let end_y = start_y + line_height;
4553 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4554 let highlight_size = size(gutter_strip_width, end_y - start_y);
4555 Bounds::new(highlight_origin, highlight_size)
4556 }
4557 DisplayDiffHunk::Unfolded {
4558 display_row_range,
4559 status,
4560 ..
4561 } => {
4562 if *status == DiffHunkStatus::Removed && display_row_range.is_empty() {
4563 let row = display_row_range.start;
4564
4565 let offset = line_height / 2.;
4566 let start_y = row.as_f32() * line_height - offset - scroll_top;
4567 let end_y = start_y + line_height;
4568
4569 let width = (0.35 * line_height).floor();
4570 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4571 let highlight_size = size(width, end_y - start_y);
4572 Bounds::new(highlight_origin, highlight_size)
4573 } else {
4574 let start_row = display_row_range.start;
4575 let end_row = display_row_range.end;
4576 // If we're in a multibuffer, row range span might include an
4577 // excerpt header, so if we were to draw the marker straight away,
4578 // the hunk might include the rows of that header.
4579 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
4580 // Instead, we simply check whether the range we're dealing with includes
4581 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
4582 let end_row_in_current_excerpt = snapshot
4583 .blocks_in_range(start_row..end_row)
4584 .find_map(|(start_row, block)| {
4585 if matches!(block, Block::ExcerptBoundary { .. }) {
4586 Some(start_row)
4587 } else {
4588 None
4589 }
4590 })
4591 .unwrap_or(end_row);
4592
4593 let start_y = start_row.as_f32() * line_height - scroll_top;
4594 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
4595
4596 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
4597 let highlight_size = size(gutter_strip_width, end_y - start_y);
4598 Bounds::new(highlight_origin, highlight_size)
4599 }
4600 }
4601 }
4602 }
4603
4604 fn paint_gutter_indicators(
4605 &self,
4606 layout: &mut EditorLayout,
4607 window: &mut Window,
4608 cx: &mut App,
4609 ) {
4610 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4611 window.with_element_namespace("crease_toggles", |window| {
4612 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
4613 crease_toggle.paint(window, cx);
4614 }
4615 });
4616
4617 for test_indicator in layout.test_indicators.iter_mut() {
4618 test_indicator.paint(window, cx);
4619 }
4620
4621 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
4622 indicator.paint(window, cx);
4623 }
4624 });
4625 }
4626
4627 fn paint_gutter_highlights(
4628 &self,
4629 layout: &mut EditorLayout,
4630 window: &mut Window,
4631 cx: &mut App,
4632 ) {
4633 for (_, hunk_hitbox) in &layout.display_hunks {
4634 if let Some(hunk_hitbox) = hunk_hitbox {
4635 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
4636 }
4637 }
4638
4639 let show_git_gutter = layout
4640 .position_map
4641 .snapshot
4642 .show_git_diff_gutter
4643 .unwrap_or_else(|| {
4644 matches!(
4645 ProjectSettings::get_global(cx).git.git_gutter,
4646 Some(GitGutterSetting::TrackedFiles)
4647 )
4648 });
4649 if show_git_gutter {
4650 Self::paint_diff_hunks(layout, window, cx)
4651 }
4652
4653 let highlight_width = 0.275 * layout.position_map.line_height;
4654 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
4655 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4656 for (range, color) in &layout.highlighted_gutter_ranges {
4657 let start_row = if range.start.row() < layout.visible_display_row_range.start {
4658 layout.visible_display_row_range.start - DisplayRow(1)
4659 } else {
4660 range.start.row()
4661 };
4662 let end_row = if range.end.row() > layout.visible_display_row_range.end {
4663 layout.visible_display_row_range.end + DisplayRow(1)
4664 } else {
4665 range.end.row()
4666 };
4667
4668 let start_y = layout.gutter_hitbox.top()
4669 + start_row.0 as f32 * layout.position_map.line_height
4670 - layout.position_map.scroll_pixel_position.y;
4671 let end_y = layout.gutter_hitbox.top()
4672 + (end_row.0 + 1) as f32 * layout.position_map.line_height
4673 - layout.position_map.scroll_pixel_position.y;
4674 let bounds = Bounds::from_corners(
4675 point(layout.gutter_hitbox.left(), start_y),
4676 point(layout.gutter_hitbox.left() + highlight_width, end_y),
4677 );
4678 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
4679 }
4680 });
4681 }
4682
4683 fn paint_blamed_display_rows(
4684 &self,
4685 layout: &mut EditorLayout,
4686 window: &mut Window,
4687 cx: &mut App,
4688 ) {
4689 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
4690 return;
4691 };
4692
4693 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
4694 for mut blame_element in blamed_display_rows.into_iter() {
4695 blame_element.paint(window, cx);
4696 }
4697 })
4698 }
4699
4700 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4701 window.with_content_mask(
4702 Some(ContentMask {
4703 bounds: layout.position_map.text_hitbox.bounds,
4704 }),
4705 |window| {
4706 let cursor_style = if self
4707 .editor
4708 .read(cx)
4709 .hovered_link_state
4710 .as_ref()
4711 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
4712 {
4713 CursorStyle::PointingHand
4714 } else {
4715 CursorStyle::IBeam
4716 };
4717 window.set_cursor_style(cursor_style, &layout.position_map.text_hitbox);
4718
4719 let invisible_display_ranges = self.paint_highlights(layout, window);
4720 self.paint_lines(&invisible_display_ranges, layout, window, cx);
4721 self.paint_redactions(layout, window);
4722 self.paint_cursors(layout, window, cx);
4723 self.paint_inline_blame(layout, window, cx);
4724 self.paint_diff_hunk_controls(layout, window, cx);
4725 window.with_element_namespace("crease_trailers", |window| {
4726 for trailer in layout.crease_trailers.iter_mut().flatten() {
4727 trailer.element.paint(window, cx);
4728 }
4729 });
4730 },
4731 )
4732 }
4733
4734 fn paint_highlights(
4735 &mut self,
4736 layout: &mut EditorLayout,
4737 window: &mut Window,
4738 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
4739 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4740 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
4741 let line_end_overshoot = 0.15 * layout.position_map.line_height;
4742 for (range, color) in &layout.highlighted_ranges {
4743 self.paint_highlighted_range(
4744 range.clone(),
4745 *color,
4746 Pixels::ZERO,
4747 line_end_overshoot,
4748 layout,
4749 window,
4750 );
4751 }
4752
4753 let corner_radius = 0.15 * layout.position_map.line_height;
4754
4755 for (player_color, selections) in &layout.selections {
4756 for selection in selections.iter() {
4757 self.paint_highlighted_range(
4758 selection.range.clone(),
4759 player_color.selection,
4760 corner_radius,
4761 corner_radius * 2.,
4762 layout,
4763 window,
4764 );
4765
4766 if selection.is_local && !selection.range.is_empty() {
4767 invisible_display_ranges.push(selection.range.clone());
4768 }
4769 }
4770 }
4771 invisible_display_ranges
4772 })
4773 }
4774
4775 fn paint_lines(
4776 &mut self,
4777 invisible_display_ranges: &[Range<DisplayPoint>],
4778 layout: &mut EditorLayout,
4779 window: &mut Window,
4780 cx: &mut App,
4781 ) {
4782 let whitespace_setting = self
4783 .editor
4784 .read(cx)
4785 .buffer
4786 .read(cx)
4787 .settings_at(0, cx)
4788 .show_whitespaces;
4789
4790 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
4791 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
4792 line_with_invisibles.draw(
4793 layout,
4794 row,
4795 layout.content_origin,
4796 whitespace_setting,
4797 invisible_display_ranges,
4798 window,
4799 cx,
4800 )
4801 }
4802
4803 for line_element in &mut layout.line_elements {
4804 line_element.paint(window, cx);
4805 }
4806 }
4807
4808 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
4809 if layout.redacted_ranges.is_empty() {
4810 return;
4811 }
4812
4813 let line_end_overshoot = layout.line_end_overshoot();
4814
4815 // A softer than perfect black
4816 let redaction_color = gpui::rgb(0x0e1111);
4817
4818 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
4819 for range in layout.redacted_ranges.iter() {
4820 self.paint_highlighted_range(
4821 range.clone(),
4822 redaction_color.into(),
4823 Pixels::ZERO,
4824 line_end_overshoot,
4825 layout,
4826 window,
4827 );
4828 }
4829 });
4830 }
4831
4832 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4833 for cursor in &mut layout.visible_cursors {
4834 cursor.paint(layout.content_origin, window, cx);
4835 }
4836 }
4837
4838 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
4839 let (scrollbar_x, scrollbar_y) = layout.scrollbars_layout.as_xy();
4840
4841 if let Some(scrollbar_layout) = scrollbar_x {
4842 let hitbox = scrollbar_layout.hitbox.clone();
4843 let text_unit_size = scrollbar_layout.text_unit_size;
4844 let visible_range = scrollbar_layout.visible_range.clone();
4845 let thumb_bounds = scrollbar_layout.thumb_bounds();
4846
4847 if scrollbar_layout.visible {
4848 window.paint_layer(hitbox.bounds, |window| {
4849 window.paint_quad(quad(
4850 hitbox.bounds,
4851 Corners::default(),
4852 cx.theme().colors().scrollbar_track_background,
4853 Edges {
4854 top: Pixels::ZERO,
4855 right: Pixels::ZERO,
4856 bottom: Pixels::ZERO,
4857 left: Pixels::ZERO,
4858 },
4859 cx.theme().colors().scrollbar_track_border,
4860 ));
4861
4862 window.paint_quad(quad(
4863 thumb_bounds,
4864 Corners::default(),
4865 cx.theme().colors().scrollbar_thumb_background,
4866 Edges {
4867 top: Pixels::ZERO,
4868 right: Pixels::ZERO,
4869 bottom: Pixels::ZERO,
4870 left: ScrollbarLayout::BORDER_WIDTH,
4871 },
4872 cx.theme().colors().scrollbar_thumb_border,
4873 ));
4874 })
4875 }
4876
4877 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
4878
4879 window.on_mouse_event({
4880 let editor = self.editor.clone();
4881
4882 // there may be a way to avoid this clone
4883 let hitbox = hitbox.clone();
4884
4885 let mut mouse_position = window.mouse_position();
4886 move |event: &MouseMoveEvent, phase, window, cx| {
4887 if phase == DispatchPhase::Capture {
4888 return;
4889 }
4890
4891 editor.update(cx, |editor, cx| {
4892 if event.pressed_button == Some(MouseButton::Left)
4893 && editor
4894 .scroll_manager
4895 .is_dragging_scrollbar(Axis::Horizontal)
4896 {
4897 let x = mouse_position.x;
4898 let new_x = event.position.x;
4899 if (hitbox.left()..hitbox.right()).contains(&x) {
4900 let mut position = editor.scroll_position(cx);
4901
4902 position.x += (new_x - x) / text_unit_size;
4903 if position.x < 0.0 {
4904 position.x = 0.0;
4905 }
4906 editor.set_scroll_position(position, window, cx);
4907 }
4908
4909 cx.stop_propagation();
4910 } else {
4911 editor.scroll_manager.set_is_dragging_scrollbar(
4912 Axis::Horizontal,
4913 false,
4914 cx,
4915 );
4916
4917 if hitbox.is_hovered(window) {
4918 editor.scroll_manager.show_scrollbar(window, cx);
4919 }
4920 }
4921 mouse_position = event.position;
4922 })
4923 }
4924 });
4925
4926 if self
4927 .editor
4928 .read(cx)
4929 .scroll_manager
4930 .is_dragging_scrollbar(Axis::Horizontal)
4931 {
4932 window.on_mouse_event({
4933 let editor = self.editor.clone();
4934 move |_: &MouseUpEvent, phase, _, cx| {
4935 if phase == DispatchPhase::Capture {
4936 return;
4937 }
4938
4939 editor.update(cx, |editor, cx| {
4940 editor.scroll_manager.set_is_dragging_scrollbar(
4941 Axis::Horizontal,
4942 false,
4943 cx,
4944 );
4945 cx.stop_propagation();
4946 });
4947 }
4948 });
4949 } else {
4950 window.on_mouse_event({
4951 let editor = self.editor.clone();
4952
4953 move |event: &MouseDownEvent, phase, window, cx| {
4954 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
4955 return;
4956 }
4957
4958 editor.update(cx, |editor, cx| {
4959 editor.scroll_manager.set_is_dragging_scrollbar(
4960 Axis::Horizontal,
4961 true,
4962 cx,
4963 );
4964
4965 let x = event.position.x;
4966
4967 if x < thumb_bounds.left() || thumb_bounds.right() < x {
4968 let center_row =
4969 ((x - hitbox.left()) / text_unit_size).round() as u32;
4970 let top_row = center_row.saturating_sub(
4971 (visible_range.end - visible_range.start) as u32 / 2,
4972 );
4973
4974 let mut position = editor.scroll_position(cx);
4975 position.x = top_row as f32;
4976
4977 editor.set_scroll_position(position, window, cx);
4978 } else {
4979 editor.scroll_manager.show_scrollbar(window, cx);
4980 }
4981
4982 cx.stop_propagation();
4983 });
4984 }
4985 });
4986 }
4987 }
4988
4989 if let Some(scrollbar_layout) = scrollbar_y {
4990 let hitbox = scrollbar_layout.hitbox.clone();
4991 let text_unit_size = scrollbar_layout.text_unit_size;
4992 let visible_range = scrollbar_layout.visible_range.clone();
4993 let thumb_bounds = scrollbar_layout.thumb_bounds();
4994
4995 if scrollbar_layout.visible {
4996 window.paint_layer(hitbox.bounds, |window| {
4997 window.paint_quad(quad(
4998 hitbox.bounds,
4999 Corners::default(),
5000 cx.theme().colors().scrollbar_track_background,
5001 Edges {
5002 top: Pixels::ZERO,
5003 right: Pixels::ZERO,
5004 bottom: Pixels::ZERO,
5005 left: ScrollbarLayout::BORDER_WIDTH,
5006 },
5007 cx.theme().colors().scrollbar_track_border,
5008 ));
5009
5010 let fast_markers =
5011 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5012 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
5013 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5014
5015 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5016 for marker in markers.iter().chain(&fast_markers) {
5017 let mut marker = marker.clone();
5018 marker.bounds.origin += hitbox.origin;
5019 window.paint_quad(marker);
5020 }
5021
5022 window.paint_quad(quad(
5023 thumb_bounds,
5024 Corners::default(),
5025 cx.theme().colors().scrollbar_thumb_background,
5026 Edges {
5027 top: Pixels::ZERO,
5028 right: Pixels::ZERO,
5029 bottom: Pixels::ZERO,
5030 left: ScrollbarLayout::BORDER_WIDTH,
5031 },
5032 cx.theme().colors().scrollbar_thumb_border,
5033 ));
5034 });
5035 }
5036
5037 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5038
5039 window.on_mouse_event({
5040 let editor = self.editor.clone();
5041
5042 let hitbox = hitbox.clone();
5043
5044 let mut mouse_position = window.mouse_position();
5045 move |event: &MouseMoveEvent, phase, window, cx| {
5046 if phase == DispatchPhase::Capture {
5047 return;
5048 }
5049
5050 editor.update(cx, |editor, cx| {
5051 if event.pressed_button == Some(MouseButton::Left)
5052 && editor.scroll_manager.is_dragging_scrollbar(Axis::Vertical)
5053 {
5054 let y = mouse_position.y;
5055 let new_y = event.position.y;
5056 if (hitbox.top()..hitbox.bottom()).contains(&y) {
5057 let mut position = editor.scroll_position(cx);
5058 position.y += (new_y - y) / text_unit_size;
5059 if position.y < 0.0 {
5060 position.y = 0.0;
5061 }
5062 editor.set_scroll_position(position, window, cx);
5063 }
5064 } else {
5065 editor.scroll_manager.set_is_dragging_scrollbar(
5066 Axis::Vertical,
5067 false,
5068 cx,
5069 );
5070
5071 if hitbox.is_hovered(window) {
5072 editor.scroll_manager.show_scrollbar(window, cx);
5073 }
5074 }
5075 mouse_position = event.position;
5076 })
5077 }
5078 });
5079
5080 if self
5081 .editor
5082 .read(cx)
5083 .scroll_manager
5084 .is_dragging_scrollbar(Axis::Vertical)
5085 {
5086 window.on_mouse_event({
5087 let editor = self.editor.clone();
5088 move |_: &MouseUpEvent, phase, _, cx| {
5089 if phase == DispatchPhase::Capture {
5090 return;
5091 }
5092
5093 editor.update(cx, |editor, cx| {
5094 editor.scroll_manager.set_is_dragging_scrollbar(
5095 Axis::Vertical,
5096 false,
5097 cx,
5098 );
5099 cx.stop_propagation();
5100 });
5101 }
5102 });
5103 } else {
5104 window.on_mouse_event({
5105 let editor = self.editor.clone();
5106
5107 move |event: &MouseDownEvent, phase, window, cx| {
5108 if phase == DispatchPhase::Capture || !hitbox.is_hovered(window) {
5109 return;
5110 }
5111
5112 editor.update(cx, |editor, cx| {
5113 editor.scroll_manager.set_is_dragging_scrollbar(
5114 Axis::Vertical,
5115 true,
5116 cx,
5117 );
5118
5119 let y = event.position.y;
5120 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
5121 let center_row =
5122 ((y - hitbox.top()) / text_unit_size).round() as u32;
5123 let top_row = center_row.saturating_sub(
5124 (visible_range.end - visible_range.start) as u32 / 2,
5125 );
5126 let mut position = editor.scroll_position(cx);
5127 position.y = top_row as f32;
5128 editor.set_scroll_position(position, window, cx);
5129 } else {
5130 editor.scroll_manager.show_scrollbar(window, cx);
5131 }
5132
5133 cx.stop_propagation();
5134 });
5135 }
5136 });
5137 }
5138 }
5139 }
5140
5141 fn collect_fast_scrollbar_markers(
5142 &self,
5143 layout: &EditorLayout,
5144 scrollbar_layout: &ScrollbarLayout,
5145 cx: &mut App,
5146 ) -> Vec<PaintQuad> {
5147 const LIMIT: usize = 100;
5148 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
5149 return vec![];
5150 }
5151 let cursor_ranges = layout
5152 .cursors
5153 .iter()
5154 .map(|(point, color)| ColoredRange {
5155 start: point.row(),
5156 end: point.row(),
5157 color: *color,
5158 })
5159 .collect_vec();
5160 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
5161 }
5162
5163 fn refresh_slow_scrollbar_markers(
5164 &self,
5165 layout: &EditorLayout,
5166 scrollbar_layout: &ScrollbarLayout,
5167 window: &mut Window,
5168 cx: &mut App,
5169 ) {
5170 self.editor.update(cx, |editor, cx| {
5171 if !editor.is_singleton(cx)
5172 || !editor
5173 .scrollbar_marker_state
5174 .should_refresh(scrollbar_layout.hitbox.size)
5175 {
5176 return;
5177 }
5178
5179 let scrollbar_layout = scrollbar_layout.clone();
5180 let background_highlights = editor.background_highlights.clone();
5181 let snapshot = layout.position_map.snapshot.clone();
5182 let theme = cx.theme().clone();
5183 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
5184
5185 editor.scrollbar_marker_state.dirty = false;
5186 editor.scrollbar_marker_state.pending_refresh =
5187 Some(cx.spawn_in(window, |editor, mut cx| async move {
5188 let scrollbar_size = scrollbar_layout.hitbox.size;
5189 let scrollbar_markers = cx
5190 .background_executor()
5191 .spawn(async move {
5192 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
5193 let mut marker_quads = Vec::new();
5194 if scrollbar_settings.git_diff {
5195 let marker_row_ranges =
5196 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
5197 let start_display_row =
5198 MultiBufferPoint::new(hunk.row_range.start.0, 0)
5199 .to_display_point(&snapshot.display_snapshot)
5200 .row();
5201 let mut end_display_row =
5202 MultiBufferPoint::new(hunk.row_range.end.0, 0)
5203 .to_display_point(&snapshot.display_snapshot)
5204 .row();
5205 if end_display_row != start_display_row {
5206 end_display_row.0 -= 1;
5207 }
5208 let color = match &hunk.status() {
5209 DiffHunkStatus::Added => theme.status().created,
5210 DiffHunkStatus::Modified => theme.status().modified,
5211 DiffHunkStatus::Removed => theme.status().deleted,
5212 };
5213 ColoredRange {
5214 start: start_display_row,
5215 end: end_display_row,
5216 color,
5217 }
5218 });
5219
5220 marker_quads.extend(
5221 scrollbar_layout
5222 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
5223 );
5224 }
5225
5226 for (background_highlight_id, (_, background_ranges)) in
5227 background_highlights.iter()
5228 {
5229 let is_search_highlights = *background_highlight_id
5230 == TypeId::of::<BufferSearchHighlights>();
5231 let is_symbol_occurrences = *background_highlight_id
5232 == TypeId::of::<DocumentHighlightRead>()
5233 || *background_highlight_id
5234 == TypeId::of::<DocumentHighlightWrite>();
5235 if (is_search_highlights && scrollbar_settings.search_results)
5236 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
5237 {
5238 let mut color = theme.status().info;
5239 if is_symbol_occurrences {
5240 color.fade_out(0.5);
5241 }
5242 let marker_row_ranges = background_ranges.iter().map(|range| {
5243 let display_start = range
5244 .start
5245 .to_display_point(&snapshot.display_snapshot);
5246 let display_end =
5247 range.end.to_display_point(&snapshot.display_snapshot);
5248 ColoredRange {
5249 start: display_start.row(),
5250 end: display_end.row(),
5251 color,
5252 }
5253 });
5254 marker_quads.extend(
5255 scrollbar_layout
5256 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
5257 );
5258 }
5259 }
5260
5261 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
5262 let diagnostics = snapshot
5263 .buffer_snapshot
5264 .diagnostics_in_range::<Point>(Point::zero()..max_point)
5265 // Don't show diagnostics the user doesn't care about
5266 .filter(|diagnostic| {
5267 match (
5268 scrollbar_settings.diagnostics,
5269 diagnostic.diagnostic.severity,
5270 ) {
5271 (ScrollbarDiagnostics::All, _) => true,
5272 (
5273 ScrollbarDiagnostics::Error,
5274 DiagnosticSeverity::ERROR,
5275 ) => true,
5276 (
5277 ScrollbarDiagnostics::Warning,
5278 DiagnosticSeverity::ERROR
5279 | DiagnosticSeverity::WARNING,
5280 ) => true,
5281 (
5282 ScrollbarDiagnostics::Information,
5283 DiagnosticSeverity::ERROR
5284 | DiagnosticSeverity::WARNING
5285 | DiagnosticSeverity::INFORMATION,
5286 ) => true,
5287 (_, _) => false,
5288 }
5289 })
5290 // We want to sort by severity, in order to paint the most severe diagnostics last.
5291 .sorted_by_key(|diagnostic| {
5292 std::cmp::Reverse(diagnostic.diagnostic.severity)
5293 });
5294
5295 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
5296 let start_display = diagnostic
5297 .range
5298 .start
5299 .to_display_point(&snapshot.display_snapshot);
5300 let end_display = diagnostic
5301 .range
5302 .end
5303 .to_display_point(&snapshot.display_snapshot);
5304 let color = match diagnostic.diagnostic.severity {
5305 DiagnosticSeverity::ERROR => theme.status().error,
5306 DiagnosticSeverity::WARNING => theme.status().warning,
5307 DiagnosticSeverity::INFORMATION => theme.status().info,
5308 _ => theme.status().hint,
5309 };
5310 ColoredRange {
5311 start: start_display.row(),
5312 end: end_display.row(),
5313 color,
5314 }
5315 });
5316 marker_quads.extend(
5317 scrollbar_layout
5318 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
5319 );
5320 }
5321
5322 Arc::from(marker_quads)
5323 })
5324 .await;
5325
5326 editor.update(&mut cx, |editor, cx| {
5327 editor.scrollbar_marker_state.markers = scrollbar_markers;
5328 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
5329 editor.scrollbar_marker_state.pending_refresh = None;
5330 cx.notify();
5331 })?;
5332
5333 Ok(())
5334 }));
5335 });
5336 }
5337
5338 #[allow(clippy::too_many_arguments)]
5339 fn paint_highlighted_range(
5340 &self,
5341 range: Range<DisplayPoint>,
5342 color: Hsla,
5343 corner_radius: Pixels,
5344 line_end_overshoot: Pixels,
5345 layout: &EditorLayout,
5346 window: &mut Window,
5347 ) {
5348 let start_row = layout.visible_display_row_range.start;
5349 let end_row = layout.visible_display_row_range.end;
5350 if range.start != range.end {
5351 let row_range = if range.end.column() == 0 {
5352 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
5353 } else {
5354 cmp::max(range.start.row(), start_row)
5355 ..cmp::min(range.end.row().next_row(), end_row)
5356 };
5357
5358 let highlighted_range = HighlightedRange {
5359 color,
5360 line_height: layout.position_map.line_height,
5361 corner_radius,
5362 start_y: layout.content_origin.y
5363 + row_range.start.as_f32() * layout.position_map.line_height
5364 - layout.position_map.scroll_pixel_position.y,
5365 lines: row_range
5366 .iter_rows()
5367 .map(|row| {
5368 let line_layout =
5369 &layout.position_map.line_layouts[row.minus(start_row) as usize];
5370 HighlightedRangeLine {
5371 start_x: if row == range.start.row() {
5372 layout.content_origin.x
5373 + line_layout.x_for_index(range.start.column() as usize)
5374 - layout.position_map.scroll_pixel_position.x
5375 } else {
5376 layout.content_origin.x
5377 - layout.position_map.scroll_pixel_position.x
5378 },
5379 end_x: if row == range.end.row() {
5380 layout.content_origin.x
5381 + line_layout.x_for_index(range.end.column() as usize)
5382 - layout.position_map.scroll_pixel_position.x
5383 } else {
5384 layout.content_origin.x + line_layout.width + line_end_overshoot
5385 - layout.position_map.scroll_pixel_position.x
5386 },
5387 }
5388 })
5389 .collect(),
5390 };
5391
5392 highlighted_range.paint(layout.position_map.text_hitbox.bounds, window);
5393 }
5394 }
5395
5396 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5397 if let Some(mut inline_blame) = layout.inline_blame.take() {
5398 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5399 inline_blame.paint(window, cx);
5400 })
5401 }
5402 }
5403
5404 fn paint_diff_hunk_controls(
5405 &mut self,
5406 layout: &mut EditorLayout,
5407 window: &mut Window,
5408 cx: &mut App,
5409 ) {
5410 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
5411 diff_hunk_control.paint(window, cx);
5412 }
5413 }
5414
5415 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5416 for mut block in layout.blocks.drain(..) {
5417 block.element.paint(window, cx);
5418 }
5419 }
5420
5421 fn paint_inline_completion_popover(
5422 &mut self,
5423 layout: &mut EditorLayout,
5424 window: &mut Window,
5425 cx: &mut App,
5426 ) {
5427 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
5428 inline_completion_popover.paint(window, cx);
5429 }
5430 }
5431
5432 fn paint_mouse_context_menu(
5433 &mut self,
5434 layout: &mut EditorLayout,
5435 window: &mut Window,
5436 cx: &mut App,
5437 ) {
5438 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
5439 mouse_context_menu.paint(window, cx);
5440 }
5441 }
5442
5443 fn paint_scroll_wheel_listener(
5444 &mut self,
5445 layout: &EditorLayout,
5446 window: &mut Window,
5447 cx: &mut App,
5448 ) {
5449 window.on_mouse_event({
5450 let position_map = layout.position_map.clone();
5451 let editor = self.editor.clone();
5452 let hitbox = layout.hitbox.clone();
5453 let mut delta = ScrollDelta::default();
5454
5455 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
5456 // accidentally turn off their scrolling.
5457 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
5458
5459 move |event: &ScrollWheelEvent, phase, window, cx| {
5460 if phase == DispatchPhase::Bubble && hitbox.is_hovered(window) {
5461 delta = delta.coalesce(event.delta);
5462 editor.update(cx, |editor, cx| {
5463 let position_map: &PositionMap = &position_map;
5464
5465 let line_height = position_map.line_height;
5466 let max_glyph_width = position_map.em_width;
5467 let (delta, axis) = match delta {
5468 gpui::ScrollDelta::Pixels(mut pixels) => {
5469 //Trackpad
5470 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
5471 (pixels, axis)
5472 }
5473
5474 gpui::ScrollDelta::Lines(lines) => {
5475 //Not trackpad
5476 let pixels =
5477 point(lines.x * max_glyph_width, lines.y * line_height);
5478 (pixels, None)
5479 }
5480 };
5481
5482 let current_scroll_position = position_map.snapshot.scroll_position();
5483 let x = (current_scroll_position.x * max_glyph_width
5484 - (delta.x * scroll_sensitivity))
5485 / max_glyph_width;
5486 let y = (current_scroll_position.y * line_height
5487 - (delta.y * scroll_sensitivity))
5488 / line_height;
5489 let mut scroll_position =
5490 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
5491 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
5492 if forbid_vertical_scroll {
5493 scroll_position.y = current_scroll_position.y;
5494 }
5495
5496 if scroll_position != current_scroll_position {
5497 editor.scroll(scroll_position, axis, window, cx);
5498 cx.stop_propagation();
5499 } else if y < 0. {
5500 // Due to clamping, we may fail to detect cases of overscroll to the top;
5501 // We want the scroll manager to get an update in such cases and detect the change of direction
5502 // on the next frame.
5503 cx.notify();
5504 }
5505 });
5506 }
5507 }
5508 });
5509 }
5510
5511 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5512 self.paint_scroll_wheel_listener(layout, window, cx);
5513
5514 window.on_mouse_event({
5515 let position_map = layout.position_map.clone();
5516 let editor = self.editor.clone();
5517 let multi_buffer_range =
5518 layout
5519 .display_hunks
5520 .iter()
5521 .find_map(|(hunk, hunk_hitbox)| match hunk {
5522 DisplayDiffHunk::Folded { .. } => None,
5523 DisplayDiffHunk::Unfolded {
5524 multi_buffer_range, ..
5525 } => {
5526 if hunk_hitbox
5527 .as_ref()
5528 .map(|hitbox| hitbox.is_hovered(window))
5529 .unwrap_or(false)
5530 {
5531 Some(multi_buffer_range.clone())
5532 } else {
5533 None
5534 }
5535 }
5536 });
5537 let line_numbers = layout.line_numbers.clone();
5538
5539 move |event: &MouseDownEvent, phase, window, cx| {
5540 if phase == DispatchPhase::Bubble {
5541 match event.button {
5542 MouseButton::Left => editor.update(cx, |editor, cx| {
5543 let pending_mouse_down = editor
5544 .pending_mouse_down
5545 .get_or_insert_with(Default::default)
5546 .clone();
5547
5548 *pending_mouse_down.borrow_mut() = Some(event.clone());
5549
5550 Self::mouse_left_down(
5551 editor,
5552 event,
5553 multi_buffer_range.clone(),
5554 &position_map,
5555 line_numbers.as_ref(),
5556 window,
5557 cx,
5558 );
5559 }),
5560 MouseButton::Right => editor.update(cx, |editor, cx| {
5561 Self::mouse_right_down(editor, event, &position_map, window, cx);
5562 }),
5563 MouseButton::Middle => editor.update(cx, |editor, cx| {
5564 Self::mouse_middle_down(editor, event, &position_map, window, cx);
5565 }),
5566 _ => {}
5567 };
5568 }
5569 }
5570 });
5571
5572 window.on_mouse_event({
5573 let editor = self.editor.clone();
5574 let position_map = layout.position_map.clone();
5575
5576 move |event: &MouseUpEvent, phase, window, cx| {
5577 if phase == DispatchPhase::Bubble {
5578 editor.update(cx, |editor, cx| {
5579 Self::mouse_up(editor, event, &position_map, window, cx)
5580 });
5581 }
5582 }
5583 });
5584
5585 window.on_mouse_event({
5586 let editor = self.editor.clone();
5587 let position_map = layout.position_map.clone();
5588 let mut captured_mouse_down = None;
5589
5590 move |event: &MouseUpEvent, phase, window, cx| match phase {
5591 // Clear the pending mouse down during the capture phase,
5592 // so that it happens even if another event handler stops
5593 // propagation.
5594 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
5595 let pending_mouse_down = editor
5596 .pending_mouse_down
5597 .get_or_insert_with(Default::default)
5598 .clone();
5599
5600 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
5601 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
5602 captured_mouse_down = pending_mouse_down.take();
5603 window.refresh();
5604 }
5605 }),
5606 // Fire click handlers during the bubble phase.
5607 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
5608 if let Some(mouse_down) = captured_mouse_down.take() {
5609 let event = ClickEvent {
5610 down: mouse_down,
5611 up: event.clone(),
5612 };
5613 Self::click(editor, &event, &position_map, window, cx);
5614 }
5615 }),
5616 }
5617 });
5618
5619 window.on_mouse_event({
5620 let position_map = layout.position_map.clone();
5621 let editor = self.editor.clone();
5622
5623 move |event: &MouseMoveEvent, phase, window, cx| {
5624 if phase == DispatchPhase::Bubble {
5625 editor.update(cx, |editor, cx| {
5626 if editor.hover_state.focused(window, cx) {
5627 return;
5628 }
5629 if event.pressed_button == Some(MouseButton::Left)
5630 || event.pressed_button == Some(MouseButton::Middle)
5631 {
5632 Self::mouse_dragged(editor, event, &position_map, window, cx)
5633 }
5634
5635 Self::mouse_moved(editor, event, &position_map, window, cx)
5636 });
5637 }
5638 }
5639 });
5640 }
5641
5642 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
5643 bounds.top_right().x - self.style.scrollbar_width
5644 }
5645
5646 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
5647 let style = &self.style;
5648 let font_size = style.text.font_size.to_pixels(window.rem_size());
5649 let layout = window
5650 .text_system()
5651 .shape_line(
5652 SharedString::from(" ".repeat(column)),
5653 font_size,
5654 &[TextRun {
5655 len: column,
5656 font: style.text.font(),
5657 color: Hsla::default(),
5658 background_color: None,
5659 underline: None,
5660 strikethrough: None,
5661 }],
5662 )
5663 .unwrap();
5664
5665 layout.width
5666 }
5667
5668 fn max_line_number_width(
5669 &self,
5670 snapshot: &EditorSnapshot,
5671 window: &mut Window,
5672 cx: &mut App,
5673 ) -> Pixels {
5674 let digit_count = (snapshot.widest_line_number() as f32).log10().floor() as usize + 1;
5675 self.column_pixels(digit_count, window, cx)
5676 }
5677
5678 fn shape_line_number(
5679 &self,
5680 text: SharedString,
5681 color: Hsla,
5682 window: &mut Window,
5683 ) -> anyhow::Result<ShapedLine> {
5684 let run = TextRun {
5685 len: text.len(),
5686 font: self.style.text.font(),
5687 color,
5688 background_color: None,
5689 underline: None,
5690 strikethrough: None,
5691 };
5692 window.text_system().shape_line(
5693 text,
5694 self.style.text.font_size.to_pixels(window.rem_size()),
5695 &[run],
5696 )
5697 }
5698}
5699
5700fn header_jump_data(
5701 snapshot: &EditorSnapshot,
5702 block_row_start: DisplayRow,
5703 height: u32,
5704 for_excerpt: &ExcerptInfo,
5705) -> JumpData {
5706 let range = &for_excerpt.range;
5707 let buffer = &for_excerpt.buffer;
5708 let jump_anchor = range
5709 .primary
5710 .as_ref()
5711 .map_or(range.context.start, |primary| primary.start);
5712
5713 let excerpt_start = range.context.start;
5714 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
5715 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
5716 0
5717 } else {
5718 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
5719 jump_position.row.saturating_sub(excerpt_start_point.row)
5720 };
5721
5722 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
5723 .saturating_sub(
5724 snapshot
5725 .scroll_anchor
5726 .scroll_position(&snapshot.display_snapshot)
5727 .y as u32,
5728 );
5729
5730 JumpData::MultiBufferPoint {
5731 excerpt_id: for_excerpt.id,
5732 anchor: jump_anchor,
5733 position: jump_position,
5734 line_offset_from_top,
5735 }
5736}
5737
5738fn inline_completion_accept_indicator(
5739 label: impl Into<SharedString>,
5740 icon: Option<IconName>,
5741 previewing: bool,
5742 focus_handle: FocusHandle,
5743 window: &Window,
5744 cx: &App,
5745) -> Option<AnyElement> {
5746 let use_hardcoded_linux_bindings;
5747
5748 #[cfg(target_os = "macos")]
5749 {
5750 use_hardcoded_linux_bindings = false;
5751 }
5752
5753 #[cfg(not(target_os = "macos"))]
5754 {
5755 use_hardcoded_linux_bindings = true;
5756 }
5757
5758 let accept_keystroke = if use_hardcoded_linux_bindings {
5759 if previewing {
5760 Keystroke {
5761 modifiers: Default::default(),
5762 key: "enter".to_string(),
5763 key_char: None,
5764 }
5765 } else {
5766 Keystroke {
5767 modifiers: Default::default(),
5768 key: "tab".to_string(),
5769 key_char: None,
5770 }
5771 }
5772 } else {
5773 let bindings = window.bindings_for_action_in(&crate::AcceptEditPrediction, &focus_handle);
5774 if let Some(keystroke) = bindings
5775 .last()
5776 .and_then(|binding| binding.keystrokes().first())
5777 {
5778 // TODO: clone unnecessary once `use_hardcoded_linux_bindings` is removed.
5779 keystroke.clone()
5780 } else {
5781 return None;
5782 }
5783 };
5784
5785 let accept_key = h_flex()
5786 .px_0p5()
5787 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5788 .text_size(TextSize::XSmall.rems(cx))
5789 .text_color(cx.theme().colors().text)
5790 .gap_1()
5791 .when(!previewing, |parent| {
5792 parent.children(ui::render_modifiers(
5793 &accept_keystroke.modifiers,
5794 PlatformStyle::platform(),
5795 Some(Color::Default),
5796 None,
5797 false,
5798 ))
5799 })
5800 .child(accept_keystroke.key.clone());
5801
5802 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5803 let accent_color = cx.theme().colors().text_accent;
5804 let editor_bg_color = cx.theme().colors().editor_background;
5805 let bg_color = editor_bg_color.blend(accent_color.opacity(0.2));
5806
5807 Some(
5808 h_flex()
5809 .py_0p5()
5810 .pl_1()
5811 .pr(padding_right)
5812 .gap_1()
5813 .bg(bg_color)
5814 .border_1()
5815 .border_color(cx.theme().colors().text_accent.opacity(0.8))
5816 .rounded_md()
5817 .shadow_sm()
5818 .child(accept_key)
5819 .child(Label::new(label).size(LabelSize::Small))
5820 .when_some(icon, |element, icon| {
5821 element.child(
5822 div()
5823 .mt(px(1.5))
5824 .child(Icon::new(icon).size(IconSize::Small)),
5825 )
5826 })
5827 .into_any(),
5828 )
5829}
5830
5831#[allow(clippy::too_many_arguments)]
5832fn prepaint_gutter_button(
5833 button: IconButton,
5834 row: DisplayRow,
5835 line_height: Pixels,
5836 gutter_dimensions: &GutterDimensions,
5837 scroll_pixel_position: gpui::Point<Pixels>,
5838 gutter_hitbox: &Hitbox,
5839 rows_with_hunk_bounds: &HashMap<DisplayRow, Bounds<Pixels>>,
5840 window: &mut Window,
5841 cx: &mut App,
5842) -> AnyElement {
5843 let mut button = button.into_any_element();
5844 let available_space = size(
5845 AvailableSpace::MinContent,
5846 AvailableSpace::Definite(line_height),
5847 );
5848 let indicator_size = button.layout_as_root(available_space, window, cx);
5849
5850 let blame_width = gutter_dimensions.git_blame_entries_width;
5851 let gutter_width = rows_with_hunk_bounds
5852 .get(&row)
5853 .map(|bounds| bounds.size.width);
5854 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
5855
5856 let mut x = left_offset;
5857 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
5858 - indicator_size.width
5859 - left_offset;
5860 x += available_width / 2.;
5861
5862 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
5863 y += (line_height - indicator_size.height) / 2.;
5864
5865 button.prepaint_as_root(
5866 gutter_hitbox.origin + point(x, y),
5867 available_space,
5868 window,
5869 cx,
5870 );
5871 button
5872}
5873
5874fn render_inline_blame_entry(
5875 blame: &gpui::Entity<GitBlame>,
5876 blame_entry: BlameEntry,
5877 style: &EditorStyle,
5878 workspace: Option<WeakEntity<Workspace>>,
5879 cx: &mut App,
5880) -> AnyElement {
5881 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5882
5883 let author = blame_entry.author.as_deref().unwrap_or_default();
5884 let summary_enabled = ProjectSettings::get_global(cx)
5885 .git
5886 .show_inline_commit_summary();
5887
5888 let text = match blame_entry.summary.as_ref() {
5889 Some(summary) if summary_enabled => {
5890 format!("{}, {} - {}", author, relative_timestamp, summary)
5891 }
5892 _ => format!("{}, {}", author, relative_timestamp),
5893 };
5894
5895 let details = blame.read(cx).details_for_entry(&blame_entry);
5896
5897 let tooltip = cx.new(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
5898
5899 h_flex()
5900 .id("inline-blame")
5901 .w_full()
5902 .font_family(style.text.font().family)
5903 .text_color(cx.theme().status().hint)
5904 .line_height(style.text.line_height)
5905 .child(Icon::new(IconName::FileGit).color(Color::Hint))
5906 .child(text)
5907 .gap_2()
5908 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5909 .into_any()
5910}
5911
5912fn render_blame_entry(
5913 ix: usize,
5914 blame: &gpui::Entity<GitBlame>,
5915 blame_entry: BlameEntry,
5916 style: &EditorStyle,
5917 last_used_color: &mut Option<(PlayerColor, Oid)>,
5918 editor: Entity<Editor>,
5919 cx: &mut App,
5920) -> AnyElement {
5921 let mut sha_color = cx
5922 .theme()
5923 .players()
5924 .color_for_participant(blame_entry.sha.into());
5925 // If the last color we used is the same as the one we get for this line, but
5926 // the commit SHAs are different, then we try again to get a different color.
5927 match *last_used_color {
5928 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
5929 let index: u32 = blame_entry.sha.into();
5930 sha_color = cx.theme().players().color_for_participant(index + 1);
5931 }
5932 _ => {}
5933 };
5934 last_used_color.replace((sha_color, blame_entry.sha));
5935
5936 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry);
5937
5938 let short_commit_id = blame_entry.sha.display_short();
5939
5940 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
5941 let name = util::truncate_and_trailoff(author_name, GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED);
5942
5943 let details = blame.read(cx).details_for_entry(&blame_entry);
5944
5945 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
5946
5947 let tooltip =
5948 cx.new(|_| BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace));
5949
5950 h_flex()
5951 .w_full()
5952 .justify_between()
5953 .font_family(style.text.font().family)
5954 .line_height(style.text.line_height)
5955 .id(("blame", ix))
5956 .text_color(cx.theme().status().hint)
5957 .pr_2()
5958 .gap_2()
5959 .child(
5960 h_flex()
5961 .items_center()
5962 .gap_2()
5963 .child(div().text_color(sha_color.cursor).child(short_commit_id))
5964 .child(name),
5965 )
5966 .child(relative_timestamp)
5967 .on_mouse_down(MouseButton::Right, {
5968 let blame_entry = blame_entry.clone();
5969 let details = details.clone();
5970 move |event, window, cx| {
5971 deploy_blame_entry_context_menu(
5972 &blame_entry,
5973 details.as_ref(),
5974 editor.clone(),
5975 event.position,
5976 window,
5977 cx,
5978 );
5979 }
5980 })
5981 .hover(|style| style.bg(cx.theme().colors().element_hover))
5982 .when_some(
5983 details.and_then(|details| details.permalink),
5984 |this, url| {
5985 let url = url.clone();
5986 this.cursor_pointer().on_click(move |_, _, cx| {
5987 cx.stop_propagation();
5988 cx.open_url(url.as_str())
5989 })
5990 },
5991 )
5992 .hoverable_tooltip(move |_, _| tooltip.clone().into())
5993 .into_any()
5994}
5995
5996fn deploy_blame_entry_context_menu(
5997 blame_entry: &BlameEntry,
5998 details: Option<&CommitDetails>,
5999 editor: Entity<Editor>,
6000 position: gpui::Point<Pixels>,
6001 window: &mut Window,
6002 cx: &mut App,
6003) {
6004 let context_menu = ContextMenu::build(window, cx, move |menu, _, _| {
6005 let sha = format!("{}", blame_entry.sha);
6006 menu.on_blur_subscription(Subscription::new(|| {}))
6007 .entry("Copy commit SHA", None, move |_, cx| {
6008 cx.write_to_clipboard(ClipboardItem::new_string(sha.clone()));
6009 })
6010 .when_some(
6011 details.and_then(|details| details.permalink.clone()),
6012 |this, url| {
6013 this.entry("Open permalink", None, move |_, cx| {
6014 cx.open_url(url.as_str())
6015 })
6016 },
6017 )
6018 });
6019
6020 editor.update(cx, move |editor, cx| {
6021 editor.mouse_context_menu = Some(MouseContextMenu::new(
6022 MenuPosition::PinnedToScreen(position),
6023 context_menu,
6024 window,
6025 cx,
6026 ));
6027 cx.notify();
6028 });
6029}
6030
6031#[derive(Debug)]
6032pub(crate) struct LineWithInvisibles {
6033 fragments: SmallVec<[LineFragment; 1]>,
6034 invisibles: Vec<Invisible>,
6035 len: usize,
6036 width: Pixels,
6037 font_size: Pixels,
6038}
6039
6040#[allow(clippy::large_enum_variant)]
6041enum LineFragment {
6042 Text(ShapedLine),
6043 Element {
6044 element: Option<AnyElement>,
6045 size: Size<Pixels>,
6046 len: usize,
6047 },
6048}
6049
6050impl fmt::Debug for LineFragment {
6051 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
6052 match self {
6053 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
6054 LineFragment::Element { size, len, .. } => f
6055 .debug_struct("Element")
6056 .field("size", size)
6057 .field("len", len)
6058 .finish(),
6059 }
6060 }
6061}
6062
6063impl LineWithInvisibles {
6064 #[allow(clippy::too_many_arguments)]
6065 fn from_chunks<'a>(
6066 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
6067 editor_style: &EditorStyle,
6068 max_line_len: usize,
6069 max_line_count: usize,
6070 editor_mode: EditorMode,
6071 text_width: Pixels,
6072 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
6073 window: &mut Window,
6074 cx: &mut App,
6075 ) -> Vec<Self> {
6076 let text_style = &editor_style.text;
6077 let mut layouts = Vec::with_capacity(max_line_count);
6078 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
6079 let mut line = String::new();
6080 let mut invisibles = Vec::new();
6081 let mut width = Pixels::ZERO;
6082 let mut len = 0;
6083 let mut styles = Vec::new();
6084 let mut non_whitespace_added = false;
6085 let mut row = 0;
6086 let mut line_exceeded_max_len = false;
6087 let font_size = text_style.font_size.to_pixels(window.rem_size());
6088
6089 let ellipsis = SharedString::from("⋯");
6090
6091 for highlighted_chunk in chunks.chain([HighlightedChunk {
6092 text: "\n",
6093 style: None,
6094 is_tab: false,
6095 replacement: None,
6096 }]) {
6097 if let Some(replacement) = highlighted_chunk.replacement {
6098 if !line.is_empty() {
6099 let shaped_line = window
6100 .text_system()
6101 .shape_line(line.clone().into(), font_size, &styles)
6102 .unwrap();
6103 width += shaped_line.width;
6104 len += shaped_line.len;
6105 fragments.push(LineFragment::Text(shaped_line));
6106 line.clear();
6107 styles.clear();
6108 }
6109
6110 match replacement {
6111 ChunkReplacement::Renderer(renderer) => {
6112 let available_width = if renderer.constrain_width {
6113 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
6114 ellipsis.clone()
6115 } else {
6116 SharedString::from(Arc::from(highlighted_chunk.text))
6117 };
6118 let shaped_line = window
6119 .text_system()
6120 .shape_line(
6121 chunk,
6122 font_size,
6123 &[text_style.to_run(highlighted_chunk.text.len())],
6124 )
6125 .unwrap();
6126 AvailableSpace::Definite(shaped_line.width)
6127 } else {
6128 AvailableSpace::MinContent
6129 };
6130
6131 let mut element = (renderer.render)(&mut ChunkRendererContext {
6132 context: cx,
6133 window,
6134 max_width: text_width,
6135 });
6136 let line_height = text_style.line_height_in_pixels(window.rem_size());
6137 let size = element.layout_as_root(
6138 size(available_width, AvailableSpace::Definite(line_height)),
6139 window,
6140 cx,
6141 );
6142
6143 width += size.width;
6144 len += highlighted_chunk.text.len();
6145 fragments.push(LineFragment::Element {
6146 element: Some(element),
6147 size,
6148 len: highlighted_chunk.text.len(),
6149 });
6150 }
6151 ChunkReplacement::Str(x) => {
6152 let text_style = if let Some(style) = highlighted_chunk.style {
6153 Cow::Owned(text_style.clone().highlight(style))
6154 } else {
6155 Cow::Borrowed(text_style)
6156 };
6157
6158 let run = TextRun {
6159 len: x.len(),
6160 font: text_style.font(),
6161 color: text_style.color,
6162 background_color: text_style.background_color,
6163 underline: text_style.underline,
6164 strikethrough: text_style.strikethrough,
6165 };
6166 let line_layout = window
6167 .text_system()
6168 .shape_line(x, font_size, &[run])
6169 .unwrap()
6170 .with_len(highlighted_chunk.text.len());
6171
6172 width += line_layout.width;
6173 len += highlighted_chunk.text.len();
6174 fragments.push(LineFragment::Text(line_layout))
6175 }
6176 }
6177 } else {
6178 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
6179 if ix > 0 {
6180 let shaped_line = window
6181 .text_system()
6182 .shape_line(line.clone().into(), font_size, &styles)
6183 .unwrap();
6184 width += shaped_line.width;
6185 len += shaped_line.len;
6186 fragments.push(LineFragment::Text(shaped_line));
6187 layouts.push(Self {
6188 width: mem::take(&mut width),
6189 len: mem::take(&mut len),
6190 fragments: mem::take(&mut fragments),
6191 invisibles: std::mem::take(&mut invisibles),
6192 font_size,
6193 });
6194
6195 line.clear();
6196 styles.clear();
6197 row += 1;
6198 line_exceeded_max_len = false;
6199 non_whitespace_added = false;
6200 if row == max_line_count {
6201 return layouts;
6202 }
6203 }
6204
6205 if !line_chunk.is_empty() && !line_exceeded_max_len {
6206 let text_style = if let Some(style) = highlighted_chunk.style {
6207 Cow::Owned(text_style.clone().highlight(style))
6208 } else {
6209 Cow::Borrowed(text_style)
6210 };
6211
6212 if line.len() + line_chunk.len() > max_line_len {
6213 let mut chunk_len = max_line_len - line.len();
6214 while !line_chunk.is_char_boundary(chunk_len) {
6215 chunk_len -= 1;
6216 }
6217 line_chunk = &line_chunk[..chunk_len];
6218 line_exceeded_max_len = true;
6219 }
6220
6221 styles.push(TextRun {
6222 len: line_chunk.len(),
6223 font: text_style.font(),
6224 color: text_style.color,
6225 background_color: text_style.background_color,
6226 underline: text_style.underline,
6227 strikethrough: text_style.strikethrough,
6228 });
6229
6230 if editor_mode == EditorMode::Full {
6231 // Line wrap pads its contents with fake whitespaces,
6232 // avoid printing them
6233 let is_soft_wrapped = is_row_soft_wrapped(row);
6234 if highlighted_chunk.is_tab {
6235 if non_whitespace_added || !is_soft_wrapped {
6236 invisibles.push(Invisible::Tab {
6237 line_start_offset: line.len(),
6238 line_end_offset: line.len() + line_chunk.len(),
6239 });
6240 }
6241 } else {
6242 invisibles.extend(line_chunk.char_indices().filter_map(
6243 |(index, c)| {
6244 let is_whitespace = c.is_whitespace();
6245 non_whitespace_added |= !is_whitespace;
6246 if is_whitespace
6247 && (non_whitespace_added || !is_soft_wrapped)
6248 {
6249 Some(Invisible::Whitespace {
6250 line_offset: line.len() + index,
6251 })
6252 } else {
6253 None
6254 }
6255 },
6256 ))
6257 }
6258 }
6259
6260 line.push_str(line_chunk);
6261 }
6262 }
6263 }
6264 }
6265
6266 layouts
6267 }
6268
6269 #[allow(clippy::too_many_arguments)]
6270 fn prepaint(
6271 &mut self,
6272 line_height: Pixels,
6273 scroll_pixel_position: gpui::Point<Pixels>,
6274 row: DisplayRow,
6275 content_origin: gpui::Point<Pixels>,
6276 line_elements: &mut SmallVec<[AnyElement; 1]>,
6277 window: &mut Window,
6278 cx: &mut App,
6279 ) {
6280 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
6281 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
6282 for fragment in &mut self.fragments {
6283 match fragment {
6284 LineFragment::Text(line) => {
6285 fragment_origin.x += line.width;
6286 }
6287 LineFragment::Element { element, size, .. } => {
6288 let mut element = element
6289 .take()
6290 .expect("you can't prepaint LineWithInvisibles twice");
6291
6292 // Center the element vertically within the line.
6293 let mut element_origin = fragment_origin;
6294 element_origin.y += (line_height - size.height) / 2.;
6295 element.prepaint_at(element_origin, window, cx);
6296 line_elements.push(element);
6297
6298 fragment_origin.x += size.width;
6299 }
6300 }
6301 }
6302 }
6303
6304 #[allow(clippy::too_many_arguments)]
6305 fn draw(
6306 &self,
6307 layout: &EditorLayout,
6308 row: DisplayRow,
6309 content_origin: gpui::Point<Pixels>,
6310 whitespace_setting: ShowWhitespaceSetting,
6311 selection_ranges: &[Range<DisplayPoint>],
6312 window: &mut Window,
6313 cx: &mut App,
6314 ) {
6315 let line_height = layout.position_map.line_height;
6316 let line_y = line_height
6317 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
6318
6319 let mut fragment_origin =
6320 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
6321
6322 for fragment in &self.fragments {
6323 match fragment {
6324 LineFragment::Text(line) => {
6325 line.paint(fragment_origin, line_height, window, cx)
6326 .log_err();
6327 fragment_origin.x += line.width;
6328 }
6329 LineFragment::Element { size, .. } => {
6330 fragment_origin.x += size.width;
6331 }
6332 }
6333 }
6334
6335 self.draw_invisibles(
6336 selection_ranges,
6337 layout,
6338 content_origin,
6339 line_y,
6340 row,
6341 line_height,
6342 whitespace_setting,
6343 window,
6344 cx,
6345 );
6346 }
6347
6348 #[allow(clippy::too_many_arguments)]
6349 fn draw_invisibles(
6350 &self,
6351 selection_ranges: &[Range<DisplayPoint>],
6352 layout: &EditorLayout,
6353 content_origin: gpui::Point<Pixels>,
6354 line_y: Pixels,
6355 row: DisplayRow,
6356 line_height: Pixels,
6357 whitespace_setting: ShowWhitespaceSetting,
6358 window: &mut Window,
6359 cx: &mut App,
6360 ) {
6361 let extract_whitespace_info = |invisible: &Invisible| {
6362 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
6363 Invisible::Tab {
6364 line_start_offset,
6365 line_end_offset,
6366 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
6367 Invisible::Whitespace { line_offset } => {
6368 (*line_offset, line_offset + 1, &layout.space_invisible)
6369 }
6370 };
6371
6372 let x_offset = self.x_for_index(token_offset);
6373 let invisible_offset =
6374 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
6375 let origin = content_origin
6376 + gpui::point(
6377 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
6378 line_y,
6379 );
6380
6381 (
6382 [token_offset, token_end_offset],
6383 Box::new(move |window: &mut Window, cx: &mut App| {
6384 invisible_symbol
6385 .paint(origin, line_height, window, cx)
6386 .log_err();
6387 }),
6388 )
6389 };
6390
6391 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
6392 match whitespace_setting {
6393 ShowWhitespaceSetting::None => (),
6394 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
6395 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
6396 let invisible_point = DisplayPoint::new(row, start as u32);
6397 if !selection_ranges
6398 .iter()
6399 .any(|region| region.start <= invisible_point && invisible_point < region.end)
6400 {
6401 return;
6402 }
6403
6404 paint(window, cx);
6405 }),
6406
6407 // For a whitespace to be on a boundary, any of the following conditions need to be met:
6408 // - It is a tab
6409 // - It is adjacent to an edge (start or end)
6410 // - It is adjacent to a whitespace (left or right)
6411 ShowWhitespaceSetting::Boundary => {
6412 // 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
6413 // the above cases.
6414 // Note: We zip in the original `invisibles` to check for tab equality
6415 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
6416 for (([start, end], paint), invisible) in
6417 invisible_iter.zip_eq(self.invisibles.iter())
6418 {
6419 let should_render = match (&last_seen, invisible) {
6420 (_, Invisible::Tab { .. }) => true,
6421 (Some((_, last_end, _)), _) => *last_end == start,
6422 _ => false,
6423 };
6424
6425 if should_render || start == 0 || end == self.len {
6426 paint(window, cx);
6427
6428 // Since we are scanning from the left, we will skip over the first available whitespace that is part
6429 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
6430 if let Some((should_render_last, last_end, paint_last)) = last_seen {
6431 // Note that we need to make sure that the last one is actually adjacent
6432 if !should_render_last && last_end == start {
6433 paint_last(window, cx);
6434 }
6435 }
6436 }
6437
6438 // Manually render anything within a selection
6439 let invisible_point = DisplayPoint::new(row, start as u32);
6440 if selection_ranges.iter().any(|region| {
6441 region.start <= invisible_point && invisible_point < region.end
6442 }) {
6443 paint(window, cx);
6444 }
6445
6446 last_seen = Some((should_render, end, paint));
6447 }
6448 }
6449 }
6450 }
6451
6452 pub fn x_for_index(&self, index: usize) -> Pixels {
6453 let mut fragment_start_x = Pixels::ZERO;
6454 let mut fragment_start_index = 0;
6455
6456 for fragment in &self.fragments {
6457 match fragment {
6458 LineFragment::Text(shaped_line) => {
6459 let fragment_end_index = fragment_start_index + shaped_line.len;
6460 if index < fragment_end_index {
6461 return fragment_start_x
6462 + shaped_line.x_for_index(index - fragment_start_index);
6463 }
6464 fragment_start_x += shaped_line.width;
6465 fragment_start_index = fragment_end_index;
6466 }
6467 LineFragment::Element { len, size, .. } => {
6468 let fragment_end_index = fragment_start_index + len;
6469 if index < fragment_end_index {
6470 return fragment_start_x;
6471 }
6472 fragment_start_x += size.width;
6473 fragment_start_index = fragment_end_index;
6474 }
6475 }
6476 }
6477
6478 fragment_start_x
6479 }
6480
6481 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
6482 let mut fragment_start_x = Pixels::ZERO;
6483 let mut fragment_start_index = 0;
6484
6485 for fragment in &self.fragments {
6486 match fragment {
6487 LineFragment::Text(shaped_line) => {
6488 let fragment_end_x = fragment_start_x + shaped_line.width;
6489 if x < fragment_end_x {
6490 return Some(
6491 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
6492 );
6493 }
6494 fragment_start_x = fragment_end_x;
6495 fragment_start_index += shaped_line.len;
6496 }
6497 LineFragment::Element { len, size, .. } => {
6498 let fragment_end_x = fragment_start_x + size.width;
6499 if x < fragment_end_x {
6500 return Some(fragment_start_index);
6501 }
6502 fragment_start_index += len;
6503 fragment_start_x = fragment_end_x;
6504 }
6505 }
6506 }
6507
6508 None
6509 }
6510
6511 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
6512 let mut fragment_start_index = 0;
6513
6514 for fragment in &self.fragments {
6515 match fragment {
6516 LineFragment::Text(shaped_line) => {
6517 let fragment_end_index = fragment_start_index + shaped_line.len;
6518 if index < fragment_end_index {
6519 return shaped_line.font_id_for_index(index - fragment_start_index);
6520 }
6521 fragment_start_index = fragment_end_index;
6522 }
6523 LineFragment::Element { len, .. } => {
6524 let fragment_end_index = fragment_start_index + len;
6525 if index < fragment_end_index {
6526 return None;
6527 }
6528 fragment_start_index = fragment_end_index;
6529 }
6530 }
6531 }
6532
6533 None
6534 }
6535}
6536
6537#[derive(Debug, Clone, Copy, PartialEq, Eq)]
6538enum Invisible {
6539 /// A tab character
6540 ///
6541 /// A tab character is internally represented by spaces (configured by the user's tab width)
6542 /// aligned to the nearest column, so it's necessary to store the start and end offset for
6543 /// adjacency checks.
6544 Tab {
6545 line_start_offset: usize,
6546 line_end_offset: usize,
6547 },
6548 Whitespace {
6549 line_offset: usize,
6550 },
6551}
6552
6553impl EditorElement {
6554 /// Returns the rem size to use when rendering the [`EditorElement`].
6555 ///
6556 /// This allows UI elements to scale based on the `buffer_font_size`.
6557 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
6558 match self.editor.read(cx).mode {
6559 EditorMode::Full => {
6560 let buffer_font_size = self.style.text.font_size;
6561 match buffer_font_size {
6562 AbsoluteLength::Pixels(pixels) => {
6563 let rem_size_scale = {
6564 // Our default UI font size is 14px on a 16px base scale.
6565 // This means the default UI font size is 0.875rems.
6566 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
6567
6568 // We then determine the delta between a single rem and the default font
6569 // size scale.
6570 let default_font_size_delta = 1. - default_font_size_scale;
6571
6572 // Finally, we add this delta to 1rem to get the scale factor that
6573 // should be used to scale up the UI.
6574 1. + default_font_size_delta
6575 };
6576
6577 Some(pixels * rem_size_scale)
6578 }
6579 AbsoluteLength::Rems(rems) => {
6580 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
6581 }
6582 }
6583 }
6584 // We currently use single-line and auto-height editors in UI contexts,
6585 // so we don't want to scale everything with the buffer font size, as it
6586 // ends up looking off.
6587 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => None,
6588 }
6589 }
6590}
6591
6592impl Element for EditorElement {
6593 type RequestLayoutState = ();
6594 type PrepaintState = EditorLayout;
6595
6596 fn id(&self) -> Option<ElementId> {
6597 None
6598 }
6599
6600 fn request_layout(
6601 &mut self,
6602 _: Option<&GlobalElementId>,
6603 window: &mut Window,
6604 cx: &mut App,
6605 ) -> (gpui::LayoutId, ()) {
6606 let rem_size = self.rem_size(cx);
6607 window.with_rem_size(rem_size, |window| {
6608 self.editor.update(cx, |editor, cx| {
6609 editor.set_style(self.style.clone(), window, cx);
6610
6611 let layout_id = match editor.mode {
6612 EditorMode::SingleLine { auto_width } => {
6613 let rem_size = window.rem_size();
6614
6615 let height = self.style.text.line_height_in_pixels(rem_size);
6616 if auto_width {
6617 let editor_handle = cx.entity().clone();
6618 let style = self.style.clone();
6619 window.request_measured_layout(
6620 Style::default(),
6621 move |_, _, window, cx| {
6622 let editor_snapshot = editor_handle
6623 .update(cx, |editor, cx| editor.snapshot(window, cx));
6624 let line = Self::layout_lines(
6625 DisplayRow(0)..DisplayRow(1),
6626 &editor_snapshot,
6627 &style,
6628 px(f32::MAX),
6629 |_| false, // Single lines never soft wrap
6630 window,
6631 cx,
6632 )
6633 .pop()
6634 .unwrap();
6635
6636 let font_id =
6637 window.text_system().resolve_font(&style.text.font());
6638 let font_size =
6639 style.text.font_size.to_pixels(window.rem_size());
6640 let em_width =
6641 window.text_system().em_width(font_id, font_size).unwrap();
6642
6643 size(line.width + em_width, height)
6644 },
6645 )
6646 } else {
6647 let mut style = Style::default();
6648 style.size.height = height.into();
6649 style.size.width = relative(1.).into();
6650 window.request_layout(style, None, cx)
6651 }
6652 }
6653 EditorMode::AutoHeight { max_lines } => {
6654 let editor_handle = cx.entity().clone();
6655 let max_line_number_width =
6656 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
6657 window.request_measured_layout(
6658 Style::default(),
6659 move |known_dimensions, available_space, window, cx| {
6660 editor_handle
6661 .update(cx, |editor, cx| {
6662 compute_auto_height_layout(
6663 editor,
6664 max_lines,
6665 max_line_number_width,
6666 known_dimensions,
6667 available_space.width,
6668 window,
6669 cx,
6670 )
6671 })
6672 .unwrap_or_default()
6673 },
6674 )
6675 }
6676 EditorMode::Full => {
6677 let mut style = Style::default();
6678 style.size.width = relative(1.).into();
6679 style.size.height = relative(1.).into();
6680 window.request_layout(style, None, cx)
6681 }
6682 };
6683
6684 (layout_id, ())
6685 })
6686 })
6687 }
6688
6689 fn prepaint(
6690 &mut self,
6691 _: Option<&GlobalElementId>,
6692 bounds: Bounds<Pixels>,
6693 _: &mut Self::RequestLayoutState,
6694 window: &mut Window,
6695 cx: &mut App,
6696 ) -> Self::PrepaintState {
6697 let text_style = TextStyleRefinement {
6698 font_size: Some(self.style.text.font_size),
6699 line_height: Some(self.style.text.line_height),
6700 ..Default::default()
6701 };
6702 let focus_handle = self.editor.focus_handle(cx);
6703 window.set_view_id(self.editor.entity_id());
6704 window.set_focus_handle(&focus_handle, cx);
6705
6706 let rem_size = self.rem_size(cx);
6707 window.with_rem_size(rem_size, |window| {
6708 window.with_text_style(Some(text_style), |window| {
6709 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6710 let mut snapshot = self
6711 .editor
6712 .update(cx, |editor, cx| editor.snapshot(window, cx));
6713 let style = self.style.clone();
6714
6715 let font_id = window.text_system().resolve_font(&style.text.font());
6716 let font_size = style.text.font_size.to_pixels(window.rem_size());
6717 let line_height = style.text.line_height_in_pixels(window.rem_size());
6718 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
6719 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
6720
6721 let letter_size = size(em_width, line_height);
6722
6723 let gutter_dimensions = snapshot
6724 .gutter_dimensions(
6725 font_id,
6726 font_size,
6727 self.max_line_number_width(&snapshot, window, cx),
6728 cx,
6729 )
6730 .unwrap_or_default();
6731 let text_width = bounds.size.width - gutter_dimensions.width;
6732
6733 let editor_width = text_width - gutter_dimensions.margin - em_width;
6734
6735 snapshot = self.editor.update(cx, |editor, cx| {
6736 editor.last_bounds = Some(bounds);
6737 editor.gutter_dimensions = gutter_dimensions;
6738 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
6739
6740 if matches!(editor.mode, EditorMode::AutoHeight { .. }) {
6741 snapshot
6742 } else {
6743 let wrap_width = match editor.soft_wrap_mode(cx) {
6744 SoftWrap::GitDiff => None,
6745 SoftWrap::None => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
6746 SoftWrap::EditorWidth => Some(editor_width),
6747 SoftWrap::Column(column) => Some(column as f32 * em_advance),
6748 SoftWrap::Bounded(column) => {
6749 Some(editor_width.min(column as f32 * em_advance))
6750 }
6751 };
6752
6753 if editor.set_wrap_width(wrap_width, cx) {
6754 editor.snapshot(window, cx)
6755 } else {
6756 snapshot
6757 }
6758 }
6759 });
6760
6761 let wrap_guides = self
6762 .editor
6763 .read(cx)
6764 .wrap_guides(cx)
6765 .iter()
6766 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
6767 .collect::<SmallVec<[_; 2]>>();
6768
6769 let hitbox = window.insert_hitbox(bounds, false);
6770 let gutter_hitbox =
6771 window.insert_hitbox(gutter_bounds(bounds, gutter_dimensions), false);
6772 let text_hitbox = window.insert_hitbox(
6773 Bounds {
6774 origin: gutter_hitbox.top_right(),
6775 size: size(text_width, bounds.size.height),
6776 },
6777 false,
6778 );
6779 // Offset the content_bounds from the text_bounds by the gutter margin (which
6780 // is roughly half a character wide) to make hit testing work more like how we want.
6781 let content_origin =
6782 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
6783
6784 let scrollbar_bounds =
6785 Bounds::from_corners(content_origin, bounds.bottom_right());
6786
6787 let height_in_lines = scrollbar_bounds.size.height / line_height;
6788
6789 // NOTE: The max row number in the current file, minus one
6790 let max_row = snapshot.max_point().row().as_f32();
6791
6792 // NOTE: The max scroll position for the top of the window
6793 let max_scroll_top = if matches!(snapshot.mode, EditorMode::AutoHeight { .. }) {
6794 (max_row - height_in_lines + 1.).max(0.)
6795 } else {
6796 let settings = EditorSettings::get_global(cx);
6797 match settings.scroll_beyond_last_line {
6798 ScrollBeyondLastLine::OnePage => max_row,
6799 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
6800 ScrollBeyondLastLine::VerticalScrollMargin => {
6801 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
6802 .max(0.)
6803 }
6804 }
6805 };
6806
6807 // TODO: Autoscrolling for both axes
6808 let mut autoscroll_request = None;
6809 let mut autoscroll_containing_element = false;
6810 let mut autoscroll_horizontally = false;
6811 self.editor.update(cx, |editor, cx| {
6812 autoscroll_request = editor.autoscroll_request();
6813 autoscroll_containing_element =
6814 autoscroll_request.is_some() || editor.has_pending_selection();
6815 // TODO: Is this horizontal or vertical?!
6816 autoscroll_horizontally = editor.autoscroll_vertically(
6817 bounds,
6818 line_height,
6819 max_scroll_top,
6820 window,
6821 cx,
6822 );
6823 snapshot = editor.snapshot(window, cx);
6824 });
6825
6826 let mut scroll_position = snapshot.scroll_position();
6827 // The scroll position is a fractional point, the whole number of which represents
6828 // the top of the window in terms of display rows.
6829 let start_row = DisplayRow(scroll_position.y as u32);
6830 let max_row = snapshot.max_point().row();
6831 let end_row = cmp::min(
6832 (scroll_position.y + height_in_lines).ceil() as u32,
6833 max_row.next_row().0,
6834 );
6835 let end_row = DisplayRow(end_row);
6836
6837 let row_infos = snapshot
6838 .row_infos(start_row)
6839 .take((start_row..end_row).len())
6840 .collect::<Vec<RowInfo>>();
6841 let is_row_soft_wrapped = |row: usize| {
6842 row_infos
6843 .get(row)
6844 .map_or(true, |info| info.buffer_row.is_none())
6845 };
6846
6847 let start_anchor = if start_row == Default::default() {
6848 Anchor::min()
6849 } else {
6850 snapshot.buffer_snapshot.anchor_before(
6851 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
6852 )
6853 };
6854 let end_anchor = if end_row > max_row {
6855 Anchor::max()
6856 } else {
6857 snapshot.buffer_snapshot.anchor_before(
6858 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
6859 )
6860 };
6861
6862 let mut highlighted_rows = self
6863 .editor
6864 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
6865
6866 for (ix, row_info) in row_infos.iter().enumerate() {
6867 let color = match row_info.diff_status {
6868 Some(DiffHunkStatus::Added) => style.status.created_background,
6869 Some(DiffHunkStatus::Removed) => style.status.deleted_background,
6870 _ => continue,
6871 };
6872 highlighted_rows
6873 .entry(start_row + DisplayRow(ix as u32))
6874 .or_insert(color);
6875 }
6876
6877 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
6878 start_anchor..end_anchor,
6879 &snapshot.display_snapshot,
6880 cx.theme().colors(),
6881 );
6882 let highlighted_gutter_ranges =
6883 self.editor.read(cx).gutter_highlights_in_range(
6884 start_anchor..end_anchor,
6885 &snapshot.display_snapshot,
6886 cx,
6887 );
6888
6889 let redacted_ranges = self.editor.read(cx).redacted_ranges(
6890 start_anchor..end_anchor,
6891 &snapshot.display_snapshot,
6892 cx,
6893 );
6894
6895 let (local_selections, selected_buffer_ids): (
6896 Vec<Selection<Point>>,
6897 Vec<BufferId>,
6898 ) = self.editor.update(cx, |editor, cx| {
6899 let all_selections = editor.selections.all::<Point>(cx);
6900 let selected_buffer_ids = if editor.is_singleton(cx) {
6901 Vec::new()
6902 } else {
6903 let mut selected_buffer_ids = Vec::with_capacity(all_selections.len());
6904
6905 for selection in all_selections {
6906 for buffer_id in snapshot
6907 .buffer_snapshot
6908 .buffer_ids_for_range(selection.range())
6909 {
6910 if selected_buffer_ids.last() != Some(&buffer_id) {
6911 selected_buffer_ids.push(buffer_id);
6912 }
6913 }
6914 }
6915
6916 selected_buffer_ids
6917 };
6918
6919 let mut selections = editor
6920 .selections
6921 .disjoint_in_range(start_anchor..end_anchor, cx);
6922 selections.extend(editor.selections.pending(cx));
6923
6924 (selections, selected_buffer_ids)
6925 });
6926
6927 let (selections, active_rows, newest_selection_head) = self.layout_selections(
6928 start_anchor,
6929 end_anchor,
6930 &local_selections,
6931 &snapshot,
6932 start_row,
6933 end_row,
6934 window,
6935 cx,
6936 );
6937
6938 let line_numbers = self.layout_line_numbers(
6939 Some(&gutter_hitbox),
6940 gutter_dimensions,
6941 line_height,
6942 scroll_position,
6943 start_row..end_row,
6944 &row_infos,
6945 newest_selection_head,
6946 &snapshot,
6947 window,
6948 cx,
6949 );
6950
6951 let mut crease_toggles =
6952 window.with_element_namespace("crease_toggles", |window| {
6953 self.layout_crease_toggles(
6954 start_row..end_row,
6955 &row_infos,
6956 &active_rows,
6957 &snapshot,
6958 window,
6959 cx,
6960 )
6961 });
6962 let crease_trailers =
6963 window.with_element_namespace("crease_trailers", |window| {
6964 self.layout_crease_trailers(
6965 row_infos.iter().copied(),
6966 &snapshot,
6967 window,
6968 cx,
6969 )
6970 });
6971
6972 let display_hunks = self.layout_gutter_diff_hunks(
6973 line_height,
6974 &gutter_hitbox,
6975 start_row..end_row,
6976 &snapshot,
6977 window,
6978 cx,
6979 );
6980
6981 let mut line_layouts = Self::layout_lines(
6982 start_row..end_row,
6983 &snapshot,
6984 &self.style,
6985 editor_width,
6986 is_row_soft_wrapped,
6987 window,
6988 cx,
6989 );
6990
6991 let longest_line_blame_width = self
6992 .editor
6993 .update(cx, |editor, cx| {
6994 if !editor.show_git_blame_inline {
6995 return None;
6996 }
6997 let blame = editor.blame.as_ref()?;
6998 let blame_entry = blame
6999 .update(cx, |blame, cx| {
7000 let row_infos =
7001 snapshot.row_infos(snapshot.longest_row()).next()?;
7002 blame.blame_for_rows(&[row_infos], cx).next()
7003 })
7004 .flatten()?;
7005 let workspace = editor.workspace.as_ref().map(|(w, _)| w.to_owned());
7006 let mut element = render_inline_blame_entry(
7007 blame,
7008 blame_entry,
7009 &style,
7010 workspace,
7011 cx,
7012 );
7013 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
7014 Some(
7015 element
7016 .layout_as_root(AvailableSpace::min_size(), window, cx)
7017 .width
7018 + inline_blame_padding,
7019 )
7020 })
7021 .unwrap_or(Pixels::ZERO);
7022
7023 let longest_line_width = layout_line(
7024 snapshot.longest_row(),
7025 &snapshot,
7026 &style,
7027 editor_width,
7028 is_row_soft_wrapped,
7029 window,
7030 cx,
7031 )
7032 .width;
7033
7034 let scrollbar_range_data = ScrollbarRangeData::new(
7035 scrollbar_bounds,
7036 letter_size,
7037 &snapshot,
7038 longest_line_width,
7039 longest_line_blame_width,
7040 &style,
7041 cx,
7042 );
7043
7044 let scroll_range_bounds = scrollbar_range_data.scroll_range;
7045 let mut scroll_width = scroll_range_bounds.size.width;
7046
7047 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
7048 snapshot.sticky_header_excerpt(start_row)
7049 } else {
7050 None
7051 };
7052 let sticky_header_excerpt_id =
7053 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
7054
7055 let blocks = window.with_element_namespace("blocks", |window| {
7056 self.render_blocks(
7057 start_row..end_row,
7058 &snapshot,
7059 &hitbox,
7060 &text_hitbox,
7061 editor_width,
7062 &mut scroll_width,
7063 &gutter_dimensions,
7064 em_width,
7065 gutter_dimensions.full_width(),
7066 line_height,
7067 &line_layouts,
7068 &local_selections,
7069 &selected_buffer_ids,
7070 is_row_soft_wrapped,
7071 sticky_header_excerpt_id,
7072 window,
7073 cx,
7074 )
7075 });
7076 let mut blocks = match blocks {
7077 Ok(blocks) => blocks,
7078 Err(resized_blocks) => {
7079 self.editor.update(cx, |editor, cx| {
7080 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
7081 });
7082 return self.prepaint(None, bounds, &mut (), window, cx);
7083 }
7084 };
7085
7086 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
7087 window.with_element_namespace("blocks", |window| {
7088 self.layout_sticky_buffer_header(
7089 sticky_header_excerpt,
7090 scroll_position.y,
7091 line_height,
7092 &snapshot,
7093 &hitbox,
7094 &selected_buffer_ids,
7095 window,
7096 cx,
7097 )
7098 })
7099 });
7100
7101 let start_buffer_row =
7102 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
7103 let end_buffer_row =
7104 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
7105
7106 let scroll_max = point(
7107 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7108 max_row.as_f32(),
7109 );
7110
7111 self.editor.update(cx, |editor, cx| {
7112 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7113
7114 let autoscrolled = if autoscroll_horizontally {
7115 editor.autoscroll_horizontally(
7116 start_row,
7117 editor_width - (letter_size.width / 2.0),
7118 scroll_width,
7119 em_width,
7120 &line_layouts,
7121 cx,
7122 )
7123 } else {
7124 false
7125 };
7126
7127 if clamped || autoscrolled {
7128 snapshot = editor.snapshot(window, cx);
7129 scroll_position = snapshot.scroll_position();
7130 }
7131 });
7132
7133 let scroll_pixel_position = point(
7134 scroll_position.x * em_width,
7135 scroll_position.y * line_height,
7136 );
7137
7138 let indent_guides = self.layout_indent_guides(
7139 content_origin,
7140 text_hitbox.origin,
7141 start_buffer_row..end_buffer_row,
7142 scroll_pixel_position,
7143 line_height,
7144 &snapshot,
7145 window,
7146 cx,
7147 );
7148
7149 let crease_trailers =
7150 window.with_element_namespace("crease_trailers", |window| {
7151 self.prepaint_crease_trailers(
7152 crease_trailers,
7153 &line_layouts,
7154 line_height,
7155 content_origin,
7156 scroll_pixel_position,
7157 em_width,
7158 window,
7159 cx,
7160 )
7161 });
7162
7163 let mut inline_blame = None;
7164 if let Some(newest_selection_head) = newest_selection_head {
7165 let display_row = newest_selection_head.row();
7166 if (start_row..end_row).contains(&display_row) {
7167 let line_ix = display_row.minus(start_row) as usize;
7168 let row_info = &row_infos[line_ix];
7169 let line_layout = &line_layouts[line_ix];
7170 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
7171 inline_blame = self.layout_inline_blame(
7172 display_row,
7173 row_info,
7174 line_layout,
7175 crease_trailer_layout,
7176 em_width,
7177 content_origin,
7178 scroll_pixel_position,
7179 line_height,
7180 window,
7181 cx,
7182 );
7183 }
7184 }
7185
7186 let blamed_display_rows = self.layout_blame_entries(
7187 &row_infos,
7188 em_width,
7189 scroll_position,
7190 line_height,
7191 &gutter_hitbox,
7192 gutter_dimensions.git_blame_entries_width,
7193 window,
7194 cx,
7195 );
7196
7197 let scroll_max = point(
7198 ((scroll_width - scrollbar_bounds.size.width) / em_width).max(0.0),
7199 max_scroll_top,
7200 );
7201
7202 self.editor.update(cx, |editor, cx| {
7203 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
7204
7205 let autoscrolled = if autoscroll_horizontally {
7206 editor.autoscroll_horizontally(
7207 start_row,
7208 editor_width - (letter_size.width / 2.0),
7209 scroll_width,
7210 em_width,
7211 &line_layouts,
7212 cx,
7213 )
7214 } else {
7215 false
7216 };
7217
7218 if clamped || autoscrolled {
7219 snapshot = editor.snapshot(window, cx);
7220 scroll_position = snapshot.scroll_position();
7221 }
7222 });
7223
7224 let line_elements = self.prepaint_lines(
7225 start_row,
7226 &mut line_layouts,
7227 line_height,
7228 scroll_pixel_position,
7229 content_origin,
7230 window,
7231 cx,
7232 );
7233
7234 let mut block_start_rows = HashSet::default();
7235
7236 window.with_element_namespace("blocks", |window| {
7237 self.layout_blocks(
7238 &mut blocks,
7239 &mut block_start_rows,
7240 &hitbox,
7241 line_height,
7242 scroll_pixel_position,
7243 window,
7244 cx,
7245 );
7246 });
7247
7248 let cursors = self.collect_cursors(&snapshot, cx);
7249 let visible_row_range = start_row..end_row;
7250 let non_visible_cursors = cursors
7251 .iter()
7252 .any(move |c| !visible_row_range.contains(&c.0.row()));
7253
7254 let visible_cursors = self.layout_visible_cursors(
7255 &snapshot,
7256 &selections,
7257 &block_start_rows,
7258 start_row..end_row,
7259 &line_layouts,
7260 &text_hitbox,
7261 content_origin,
7262 scroll_position,
7263 scroll_pixel_position,
7264 line_height,
7265 em_width,
7266 em_advance,
7267 autoscroll_containing_element,
7268 window,
7269 cx,
7270 );
7271
7272 let scrollbars_layout = self.layout_scrollbars(
7273 &snapshot,
7274 scrollbar_range_data,
7275 scroll_position,
7276 non_visible_cursors,
7277 window,
7278 cx,
7279 );
7280
7281 let gutter_settings = EditorSettings::get_global(cx).gutter;
7282
7283 let rows_with_hunk_bounds = display_hunks
7284 .iter()
7285 .filter_map(|(hunk, hitbox)| Some((hunk, hitbox.as_ref()?.bounds)))
7286 .fold(
7287 HashMap::default(),
7288 |mut rows_with_hunk_bounds, (hunk, bounds)| {
7289 match hunk {
7290 DisplayDiffHunk::Folded { display_row } => {
7291 rows_with_hunk_bounds.insert(*display_row, bounds);
7292 }
7293 DisplayDiffHunk::Unfolded {
7294 display_row_range, ..
7295 } => {
7296 for display_row in display_row_range.iter_rows() {
7297 rows_with_hunk_bounds.insert(display_row, bounds);
7298 }
7299 }
7300 }
7301 rows_with_hunk_bounds
7302 },
7303 );
7304 let mut code_actions_indicator = None;
7305 if let Some(newest_selection_head) = newest_selection_head {
7306 let newest_selection_point =
7307 newest_selection_head.to_point(&snapshot.display_snapshot);
7308
7309 if (start_row..end_row).contains(&newest_selection_head.row()) {
7310 self.layout_cursor_popovers(
7311 line_height,
7312 &text_hitbox,
7313 content_origin,
7314 start_row,
7315 scroll_pixel_position,
7316 &line_layouts,
7317 newest_selection_head,
7318 newest_selection_point,
7319 &style,
7320 window,
7321 cx,
7322 );
7323
7324 let show_code_actions = snapshot
7325 .show_code_actions
7326 .unwrap_or(gutter_settings.code_actions);
7327 if show_code_actions {
7328 let newest_selection_point =
7329 newest_selection_head.to_point(&snapshot.display_snapshot);
7330 if !snapshot
7331 .is_line_folded(MultiBufferRow(newest_selection_point.row))
7332 {
7333 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
7334 MultiBufferRow(newest_selection_point.row),
7335 );
7336 if let Some((buffer, range)) = buffer {
7337 let buffer_id = buffer.remote_id();
7338 let row = range.start.row;
7339 let has_test_indicator = self
7340 .editor
7341 .read(cx)
7342 .tasks
7343 .contains_key(&(buffer_id, row));
7344
7345 if !has_test_indicator {
7346 code_actions_indicator = self
7347 .layout_code_actions_indicator(
7348 line_height,
7349 newest_selection_head,
7350 scroll_pixel_position,
7351 &gutter_dimensions,
7352 &gutter_hitbox,
7353 &rows_with_hunk_bounds,
7354 window,
7355 cx,
7356 );
7357 }
7358 }
7359 }
7360 }
7361 }
7362 }
7363
7364 self.layout_gutter_menu(
7365 line_height,
7366 &text_hitbox,
7367 content_origin,
7368 scroll_pixel_position,
7369 gutter_dimensions.width - gutter_dimensions.left_padding,
7370 window,
7371 cx,
7372 );
7373
7374 let test_indicators = if gutter_settings.runnables {
7375 self.layout_run_indicators(
7376 line_height,
7377 start_row..end_row,
7378 scroll_pixel_position,
7379 &gutter_dimensions,
7380 &gutter_hitbox,
7381 &rows_with_hunk_bounds,
7382 &snapshot,
7383 window,
7384 cx,
7385 )
7386 } else {
7387 Vec::new()
7388 };
7389
7390 self.layout_signature_help(
7391 &hitbox,
7392 content_origin,
7393 scroll_pixel_position,
7394 newest_selection_head,
7395 start_row,
7396 &line_layouts,
7397 line_height,
7398 em_width,
7399 window,
7400 cx,
7401 );
7402
7403 if !cx.has_active_drag() {
7404 self.layout_hover_popovers(
7405 &snapshot,
7406 &hitbox,
7407 &text_hitbox,
7408 start_row..end_row,
7409 content_origin,
7410 scroll_pixel_position,
7411 &line_layouts,
7412 line_height,
7413 em_width,
7414 window,
7415 cx,
7416 );
7417 }
7418
7419 let inline_completion_popover = self.layout_inline_completion_popover(
7420 &text_hitbox.bounds,
7421 &snapshot,
7422 start_row..end_row,
7423 scroll_position.y,
7424 scroll_position.y + height_in_lines,
7425 &line_layouts,
7426 line_height,
7427 scroll_pixel_position,
7428 newest_selection_head,
7429 editor_width,
7430 &style,
7431 window,
7432 cx,
7433 );
7434
7435 let mouse_context_menu = self.layout_mouse_context_menu(
7436 &snapshot,
7437 start_row..end_row,
7438 content_origin,
7439 window,
7440 cx,
7441 );
7442
7443 window.with_element_namespace("crease_toggles", |window| {
7444 self.prepaint_crease_toggles(
7445 &mut crease_toggles,
7446 line_height,
7447 &gutter_dimensions,
7448 gutter_settings,
7449 scroll_pixel_position,
7450 &gutter_hitbox,
7451 window,
7452 cx,
7453 )
7454 });
7455
7456 let invisible_symbol_font_size = font_size / 2.;
7457 let tab_invisible = window
7458 .text_system()
7459 .shape_line(
7460 "→".into(),
7461 invisible_symbol_font_size,
7462 &[TextRun {
7463 len: "→".len(),
7464 font: self.style.text.font(),
7465 color: cx.theme().colors().editor_invisible,
7466 background_color: None,
7467 underline: None,
7468 strikethrough: None,
7469 }],
7470 )
7471 .unwrap();
7472 let space_invisible = window
7473 .text_system()
7474 .shape_line(
7475 "•".into(),
7476 invisible_symbol_font_size,
7477 &[TextRun {
7478 len: "•".len(),
7479 font: self.style.text.font(),
7480 color: cx.theme().colors().editor_invisible,
7481 background_color: None,
7482 underline: None,
7483 strikethrough: None,
7484 }],
7485 )
7486 .unwrap();
7487
7488 let mode = snapshot.mode;
7489
7490 let position_map = Rc::new(PositionMap {
7491 size: bounds.size,
7492 scroll_pixel_position,
7493 scroll_max,
7494 line_layouts,
7495 line_height,
7496 em_width,
7497 em_advance,
7498 snapshot,
7499 gutter_hitbox: gutter_hitbox.clone(),
7500 text_hitbox: text_hitbox.clone(),
7501 });
7502
7503 self.editor.update(cx, |editor, _| {
7504 editor.last_position_map = Some(position_map.clone())
7505 });
7506
7507 let hunk_controls = self.layout_diff_hunk_controls(
7508 start_row..end_row,
7509 &row_infos,
7510 &text_hitbox,
7511 &position_map,
7512 newest_selection_head,
7513 line_height,
7514 scroll_pixel_position,
7515 &display_hunks,
7516 self.editor.clone(),
7517 window,
7518 cx,
7519 );
7520
7521 EditorLayout {
7522 mode,
7523 position_map,
7524 visible_display_row_range: start_row..end_row,
7525 wrap_guides,
7526 indent_guides,
7527 hitbox,
7528 gutter_hitbox,
7529 display_hunks,
7530 content_origin,
7531 scrollbars_layout,
7532 active_rows,
7533 highlighted_rows,
7534 highlighted_ranges,
7535 highlighted_gutter_ranges,
7536 redacted_ranges,
7537 line_elements,
7538 line_numbers,
7539 blamed_display_rows,
7540 inline_blame,
7541 blocks,
7542 cursors,
7543 visible_cursors,
7544 selections,
7545 inline_completion_popover,
7546 diff_hunk_controls: hunk_controls,
7547 mouse_context_menu,
7548 test_indicators,
7549 code_actions_indicator,
7550 crease_toggles,
7551 crease_trailers,
7552 tab_invisible,
7553 space_invisible,
7554 sticky_buffer_header,
7555 }
7556 })
7557 })
7558 })
7559 }
7560
7561 fn paint(
7562 &mut self,
7563 _: Option<&GlobalElementId>,
7564 bounds: Bounds<gpui::Pixels>,
7565 _: &mut Self::RequestLayoutState,
7566 layout: &mut Self::PrepaintState,
7567 window: &mut Window,
7568 cx: &mut App,
7569 ) {
7570 let focus_handle = self.editor.focus_handle(cx);
7571 let key_context = self
7572 .editor
7573 .update(cx, |editor, cx| editor.key_context(window, cx));
7574
7575 window.set_key_context(key_context);
7576 window.handle_input(
7577 &focus_handle,
7578 ElementInputHandler::new(bounds, self.editor.clone()),
7579 cx,
7580 );
7581 self.register_actions(window, cx);
7582 self.register_key_listeners(window, cx, layout);
7583
7584 let text_style = TextStyleRefinement {
7585 font_size: Some(self.style.text.font_size),
7586 line_height: Some(self.style.text.line_height),
7587 ..Default::default()
7588 };
7589 let rem_size = self.rem_size(cx);
7590 window.with_rem_size(rem_size, |window| {
7591 window.with_text_style(Some(text_style), |window| {
7592 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7593 self.paint_mouse_listeners(layout, window, cx);
7594 self.paint_background(layout, window, cx);
7595 self.paint_indent_guides(layout, window, cx);
7596
7597 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7598 self.paint_blamed_display_rows(layout, window, cx);
7599 self.paint_line_numbers(layout, window, cx);
7600 }
7601
7602 self.paint_text(layout, window, cx);
7603
7604 if layout.gutter_hitbox.size.width > Pixels::ZERO {
7605 self.paint_gutter_highlights(layout, window, cx);
7606 self.paint_gutter_indicators(layout, window, cx);
7607 }
7608
7609 if !layout.blocks.is_empty() {
7610 window.with_element_namespace("blocks", |window| {
7611 self.paint_blocks(layout, window, cx);
7612 });
7613 }
7614
7615 window.with_element_namespace("blocks", |window| {
7616 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
7617 sticky_header.paint(window, cx)
7618 }
7619 });
7620
7621 self.paint_scrollbars(layout, window, cx);
7622 self.paint_inline_completion_popover(layout, window, cx);
7623 self.paint_mouse_context_menu(layout, window, cx);
7624 });
7625 })
7626 })
7627 }
7628}
7629
7630pub(super) fn gutter_bounds(
7631 editor_bounds: Bounds<Pixels>,
7632 gutter_dimensions: GutterDimensions,
7633) -> Bounds<Pixels> {
7634 Bounds {
7635 origin: editor_bounds.origin,
7636 size: size(gutter_dimensions.width, editor_bounds.size.height),
7637 }
7638}
7639
7640struct ScrollbarRangeData {
7641 scrollbar_bounds: Bounds<Pixels>,
7642 scroll_range: Bounds<Pixels>,
7643 letter_size: Size<Pixels>,
7644}
7645
7646impl ScrollbarRangeData {
7647 pub fn new(
7648 scrollbar_bounds: Bounds<Pixels>,
7649 letter_size: Size<Pixels>,
7650 snapshot: &EditorSnapshot,
7651 longest_line_width: Pixels,
7652 longest_line_blame_width: Pixels,
7653 style: &EditorStyle,
7654
7655 cx: &mut App,
7656 ) -> ScrollbarRangeData {
7657 // TODO: Simplify this function down, it requires a lot of parameters
7658 let max_row = snapshot.max_point().row();
7659 let text_bounds_size = size(longest_line_width, max_row.0 as f32 * letter_size.height);
7660
7661 let scrollbar_width = style.scrollbar_width;
7662
7663 let settings = EditorSettings::get_global(cx);
7664 let scroll_beyond_last_line: Pixels = match settings.scroll_beyond_last_line {
7665 ScrollBeyondLastLine::OnePage => px(scrollbar_bounds.size.height / letter_size.height),
7666 ScrollBeyondLastLine::Off => px(1.),
7667 ScrollBeyondLastLine::VerticalScrollMargin => px(1.0 + settings.vertical_scroll_margin),
7668 };
7669
7670 let overscroll = size(
7671 scrollbar_width + (letter_size.width / 2.0) + longest_line_blame_width,
7672 letter_size.height * scroll_beyond_last_line,
7673 );
7674
7675 let scroll_range = Bounds {
7676 origin: scrollbar_bounds.origin,
7677 size: text_bounds_size + overscroll,
7678 };
7679
7680 ScrollbarRangeData {
7681 scrollbar_bounds,
7682 scroll_range,
7683 letter_size,
7684 }
7685 }
7686}
7687
7688impl IntoElement for EditorElement {
7689 type Element = Self;
7690
7691 fn into_element(self) -> Self::Element {
7692 self
7693 }
7694}
7695
7696pub struct EditorLayout {
7697 position_map: Rc<PositionMap>,
7698 hitbox: Hitbox,
7699 gutter_hitbox: Hitbox,
7700 content_origin: gpui::Point<Pixels>,
7701 scrollbars_layout: AxisPair<Option<ScrollbarLayout>>,
7702 mode: EditorMode,
7703 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
7704 indent_guides: Option<Vec<IndentGuideLayout>>,
7705 visible_display_row_range: Range<DisplayRow>,
7706 active_rows: BTreeMap<DisplayRow, bool>,
7707 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
7708 line_elements: SmallVec<[AnyElement; 1]>,
7709 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
7710 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
7711 blamed_display_rows: Option<Vec<AnyElement>>,
7712 inline_blame: Option<AnyElement>,
7713 blocks: Vec<BlockLayout>,
7714 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7715 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
7716 redacted_ranges: Vec<Range<DisplayPoint>>,
7717 cursors: Vec<(DisplayPoint, Hsla)>,
7718 visible_cursors: Vec<CursorLayout>,
7719 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
7720 code_actions_indicator: Option<AnyElement>,
7721 test_indicators: Vec<AnyElement>,
7722 crease_toggles: Vec<Option<AnyElement>>,
7723 diff_hunk_controls: Vec<AnyElement>,
7724 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
7725 inline_completion_popover: Option<AnyElement>,
7726 mouse_context_menu: Option<AnyElement>,
7727 tab_invisible: ShapedLine,
7728 space_invisible: ShapedLine,
7729 sticky_buffer_header: Option<AnyElement>,
7730}
7731
7732impl EditorLayout {
7733 fn line_end_overshoot(&self) -> Pixels {
7734 0.15 * self.position_map.line_height
7735 }
7736}
7737
7738struct LineNumberLayout {
7739 shaped_line: ShapedLine,
7740 hitbox: Option<Hitbox>,
7741 display_row: DisplayRow,
7742}
7743
7744struct ColoredRange<T> {
7745 start: T,
7746 end: T,
7747 color: Hsla,
7748}
7749
7750#[derive(Clone)]
7751struct ScrollbarLayout {
7752 hitbox: Hitbox,
7753 visible_range: Range<f32>,
7754 visible: bool,
7755 text_unit_size: Pixels,
7756 thumb_size: Pixels,
7757 axis: Axis,
7758}
7759
7760impl ScrollbarLayout {
7761 const BORDER_WIDTH: Pixels = px(1.0);
7762 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
7763 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
7764 // const MIN_THUMB_HEIGHT: Pixels = px(20.0);
7765
7766 fn thumb_bounds(&self) -> Bounds<Pixels> {
7767 match self.axis {
7768 Axis::Vertical => {
7769 let thumb_top = self.y_for_row(self.visible_range.start);
7770 let thumb_bottom = thumb_top + self.thumb_size;
7771 Bounds::from_corners(
7772 point(self.hitbox.left(), thumb_top),
7773 point(self.hitbox.right(), thumb_bottom),
7774 )
7775 }
7776 Axis::Horizontal => {
7777 let thumb_left =
7778 self.hitbox.left() + self.visible_range.start * self.text_unit_size;
7779 let thumb_right = thumb_left + self.thumb_size;
7780 Bounds::from_corners(
7781 point(thumb_left, self.hitbox.top()),
7782 point(thumb_right, self.hitbox.bottom()),
7783 )
7784 }
7785 }
7786 }
7787
7788 fn y_for_row(&self, row: f32) -> Pixels {
7789 self.hitbox.top() + row * self.text_unit_size
7790 }
7791
7792 fn marker_quads_for_ranges(
7793 &self,
7794 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
7795 column: Option<usize>,
7796 ) -> Vec<PaintQuad> {
7797 struct MinMax {
7798 min: Pixels,
7799 max: Pixels,
7800 }
7801 let (x_range, height_limit) = if let Some(column) = column {
7802 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
7803 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
7804 let end = start + column_width;
7805 (
7806 Range { start, end },
7807 MinMax {
7808 min: Self::MIN_MARKER_HEIGHT,
7809 max: px(f32::MAX),
7810 },
7811 )
7812 } else {
7813 (
7814 Range {
7815 start: Self::BORDER_WIDTH,
7816 end: self.hitbox.size.width,
7817 },
7818 MinMax {
7819 min: Self::LINE_MARKER_HEIGHT,
7820 max: Self::LINE_MARKER_HEIGHT,
7821 },
7822 )
7823 };
7824
7825 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
7826 let mut pixel_ranges = row_ranges
7827 .into_iter()
7828 .map(|range| {
7829 let start_y = row_to_y(range.start);
7830 let end_y = row_to_y(range.end)
7831 + self
7832 .text_unit_size
7833 .max(height_limit.min)
7834 .min(height_limit.max);
7835 ColoredRange {
7836 start: start_y,
7837 end: end_y,
7838 color: range.color,
7839 }
7840 })
7841 .peekable();
7842
7843 let mut quads = Vec::new();
7844 while let Some(mut pixel_range) = pixel_ranges.next() {
7845 while let Some(next_pixel_range) = pixel_ranges.peek() {
7846 if pixel_range.end >= next_pixel_range.start - px(1.0)
7847 && pixel_range.color == next_pixel_range.color
7848 {
7849 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
7850 pixel_ranges.next();
7851 } else {
7852 break;
7853 }
7854 }
7855
7856 let bounds = Bounds::from_corners(
7857 point(x_range.start, pixel_range.start),
7858 point(x_range.end, pixel_range.end),
7859 );
7860 quads.push(quad(
7861 bounds,
7862 Corners::default(),
7863 pixel_range.color,
7864 Edges::default(),
7865 Hsla::transparent_black(),
7866 ));
7867 }
7868
7869 quads
7870 }
7871}
7872
7873struct CreaseTrailerLayout {
7874 element: AnyElement,
7875 bounds: Bounds<Pixels>,
7876}
7877
7878pub(crate) struct PositionMap {
7879 pub size: Size<Pixels>,
7880 pub line_height: Pixels,
7881 pub scroll_pixel_position: gpui::Point<Pixels>,
7882 pub scroll_max: gpui::Point<f32>,
7883 pub em_width: Pixels,
7884 pub em_advance: Pixels,
7885 pub line_layouts: Vec<LineWithInvisibles>,
7886 pub snapshot: EditorSnapshot,
7887 pub text_hitbox: Hitbox,
7888 pub gutter_hitbox: Hitbox,
7889}
7890
7891#[derive(Debug, Copy, Clone)]
7892pub struct PointForPosition {
7893 pub previous_valid: DisplayPoint,
7894 pub next_valid: DisplayPoint,
7895 pub exact_unclipped: DisplayPoint,
7896 pub column_overshoot_after_line_end: u32,
7897}
7898
7899impl PointForPosition {
7900 pub fn as_valid(&self) -> Option<DisplayPoint> {
7901 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
7902 Some(self.previous_valid)
7903 } else {
7904 None
7905 }
7906 }
7907}
7908
7909impl PositionMap {
7910 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
7911 let text_bounds = self.text_hitbox.bounds;
7912 let scroll_position = self.snapshot.scroll_position();
7913 let position = position - text_bounds.origin;
7914 let y = position.y.max(px(0.)).min(self.size.height);
7915 let x = position.x + (scroll_position.x * self.em_width);
7916 let row = ((y / self.line_height) + scroll_position.y) as u32;
7917
7918 let (column, x_overshoot_after_line_end) = if let Some(line) = self
7919 .line_layouts
7920 .get(row as usize - scroll_position.y as usize)
7921 {
7922 if let Some(ix) = line.index_for_x(x) {
7923 (ix as u32, px(0.))
7924 } else {
7925 (line.len as u32, px(0.).max(x - line.width))
7926 }
7927 } else {
7928 (0, x)
7929 };
7930
7931 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
7932 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
7933 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
7934
7935 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
7936 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
7937 PointForPosition {
7938 previous_valid,
7939 next_valid,
7940 exact_unclipped,
7941 column_overshoot_after_line_end,
7942 }
7943 }
7944}
7945
7946struct BlockLayout {
7947 id: BlockId,
7948 row: Option<DisplayRow>,
7949 element: AnyElement,
7950 available_space: Size<AvailableSpace>,
7951 style: BlockStyle,
7952}
7953
7954fn layout_line(
7955 row: DisplayRow,
7956 snapshot: &EditorSnapshot,
7957 style: &EditorStyle,
7958 text_width: Pixels,
7959 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7960 window: &mut Window,
7961 cx: &mut App,
7962) -> LineWithInvisibles {
7963 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
7964 LineWithInvisibles::from_chunks(
7965 chunks,
7966 &style,
7967 MAX_LINE_LEN,
7968 1,
7969 snapshot.mode,
7970 text_width,
7971 is_row_soft_wrapped,
7972 window,
7973 cx,
7974 )
7975 .pop()
7976 .unwrap()
7977}
7978
7979#[derive(Debug)]
7980pub struct IndentGuideLayout {
7981 origin: gpui::Point<Pixels>,
7982 length: Pixels,
7983 single_indent_width: Pixels,
7984 depth: u32,
7985 active: bool,
7986 settings: IndentGuideSettings,
7987}
7988
7989pub struct CursorLayout {
7990 origin: gpui::Point<Pixels>,
7991 block_width: Pixels,
7992 line_height: Pixels,
7993 color: Hsla,
7994 shape: CursorShape,
7995 block_text: Option<ShapedLine>,
7996 cursor_name: Option<AnyElement>,
7997}
7998
7999#[derive(Debug)]
8000pub struct CursorName {
8001 string: SharedString,
8002 color: Hsla,
8003 is_top_row: bool,
8004}
8005
8006impl CursorLayout {
8007 pub fn new(
8008 origin: gpui::Point<Pixels>,
8009 block_width: Pixels,
8010 line_height: Pixels,
8011 color: Hsla,
8012 shape: CursorShape,
8013 block_text: Option<ShapedLine>,
8014 ) -> CursorLayout {
8015 CursorLayout {
8016 origin,
8017 block_width,
8018 line_height,
8019 color,
8020 shape,
8021 block_text,
8022 cursor_name: None,
8023 }
8024 }
8025
8026 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8027 Bounds {
8028 origin: self.origin + origin,
8029 size: size(self.block_width, self.line_height),
8030 }
8031 }
8032
8033 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
8034 match self.shape {
8035 CursorShape::Bar => Bounds {
8036 origin: self.origin + origin,
8037 size: size(px(2.0), self.line_height),
8038 },
8039 CursorShape::Block | CursorShape::Hollow => Bounds {
8040 origin: self.origin + origin,
8041 size: size(self.block_width, self.line_height),
8042 },
8043 CursorShape::Underline => Bounds {
8044 origin: self.origin
8045 + origin
8046 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
8047 size: size(self.block_width, px(2.0)),
8048 },
8049 }
8050 }
8051
8052 pub fn layout(
8053 &mut self,
8054 origin: gpui::Point<Pixels>,
8055 cursor_name: Option<CursorName>,
8056 window: &mut Window,
8057 cx: &mut App,
8058 ) {
8059 if let Some(cursor_name) = cursor_name {
8060 let bounds = self.bounds(origin);
8061 let text_size = self.line_height / 1.5;
8062
8063 let name_origin = if cursor_name.is_top_row {
8064 point(bounds.right() - px(1.), bounds.top())
8065 } else {
8066 match self.shape {
8067 CursorShape::Bar => point(
8068 bounds.right() - px(2.),
8069 bounds.top() - text_size / 2. - px(1.),
8070 ),
8071 _ => point(
8072 bounds.right() - px(1.),
8073 bounds.top() - text_size / 2. - px(1.),
8074 ),
8075 }
8076 };
8077 let mut name_element = div()
8078 .bg(self.color)
8079 .text_size(text_size)
8080 .px_0p5()
8081 .line_height(text_size + px(2.))
8082 .text_color(cursor_name.color)
8083 .child(cursor_name.string.clone())
8084 .into_any_element();
8085
8086 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
8087
8088 self.cursor_name = Some(name_element);
8089 }
8090 }
8091
8092 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
8093 let bounds = self.bounds(origin);
8094
8095 //Draw background or border quad
8096 let cursor = if matches!(self.shape, CursorShape::Hollow) {
8097 outline(bounds, self.color)
8098 } else {
8099 fill(bounds, self.color)
8100 };
8101
8102 if let Some(name) = &mut self.cursor_name {
8103 name.paint(window, cx);
8104 }
8105
8106 window.paint_quad(cursor);
8107
8108 if let Some(block_text) = &self.block_text {
8109 block_text
8110 .paint(self.origin + origin, self.line_height, window, cx)
8111 .log_err();
8112 }
8113 }
8114
8115 pub fn shape(&self) -> CursorShape {
8116 self.shape
8117 }
8118}
8119
8120#[derive(Debug)]
8121pub struct HighlightedRange {
8122 pub start_y: Pixels,
8123 pub line_height: Pixels,
8124 pub lines: Vec<HighlightedRangeLine>,
8125 pub color: Hsla,
8126 pub corner_radius: Pixels,
8127}
8128
8129#[derive(Debug)]
8130pub struct HighlightedRangeLine {
8131 pub start_x: Pixels,
8132 pub end_x: Pixels,
8133}
8134
8135impl HighlightedRange {
8136 pub fn paint(&self, bounds: Bounds<Pixels>, window: &mut Window) {
8137 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
8138 self.paint_lines(self.start_y, &self.lines[0..1], bounds, window);
8139 self.paint_lines(
8140 self.start_y + self.line_height,
8141 &self.lines[1..],
8142 bounds,
8143 window,
8144 );
8145 } else {
8146 self.paint_lines(self.start_y, &self.lines, bounds, window);
8147 }
8148 }
8149
8150 fn paint_lines(
8151 &self,
8152 start_y: Pixels,
8153 lines: &[HighlightedRangeLine],
8154 _bounds: Bounds<Pixels>,
8155 window: &mut Window,
8156 ) {
8157 if lines.is_empty() {
8158 return;
8159 }
8160
8161 let first_line = lines.first().unwrap();
8162 let last_line = lines.last().unwrap();
8163
8164 let first_top_left = point(first_line.start_x, start_y);
8165 let first_top_right = point(first_line.end_x, start_y);
8166
8167 let curve_height = point(Pixels::ZERO, self.corner_radius);
8168 let curve_width = |start_x: Pixels, end_x: Pixels| {
8169 let max = (end_x - start_x) / 2.;
8170 let width = if max < self.corner_radius {
8171 max
8172 } else {
8173 self.corner_radius
8174 };
8175
8176 point(width, Pixels::ZERO)
8177 };
8178
8179 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
8180 let mut builder = gpui::PathBuilder::fill();
8181 builder.move_to(first_top_right - top_curve_width);
8182 builder.curve_to(first_top_right + curve_height, first_top_right);
8183
8184 let mut iter = lines.iter().enumerate().peekable();
8185 while let Some((ix, line)) = iter.next() {
8186 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
8187
8188 if let Some((_, next_line)) = iter.peek() {
8189 let next_top_right = point(next_line.end_x, bottom_right.y);
8190
8191 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
8192 Ordering::Equal => {
8193 builder.line_to(bottom_right);
8194 }
8195 Ordering::Less => {
8196 let curve_width = curve_width(next_top_right.x, bottom_right.x);
8197 builder.line_to(bottom_right - curve_height);
8198 if self.corner_radius > Pixels::ZERO {
8199 builder.curve_to(bottom_right - curve_width, bottom_right);
8200 }
8201 builder.line_to(next_top_right + curve_width);
8202 if self.corner_radius > Pixels::ZERO {
8203 builder.curve_to(next_top_right + curve_height, next_top_right);
8204 }
8205 }
8206 Ordering::Greater => {
8207 let curve_width = curve_width(bottom_right.x, next_top_right.x);
8208 builder.line_to(bottom_right - curve_height);
8209 if self.corner_radius > Pixels::ZERO {
8210 builder.curve_to(bottom_right + curve_width, bottom_right);
8211 }
8212 builder.line_to(next_top_right - curve_width);
8213 if self.corner_radius > Pixels::ZERO {
8214 builder.curve_to(next_top_right + curve_height, next_top_right);
8215 }
8216 }
8217 }
8218 } else {
8219 let curve_width = curve_width(line.start_x, line.end_x);
8220 builder.line_to(bottom_right - curve_height);
8221 if self.corner_radius > Pixels::ZERO {
8222 builder.curve_to(bottom_right - curve_width, bottom_right);
8223 }
8224
8225 let bottom_left = point(line.start_x, bottom_right.y);
8226 builder.line_to(bottom_left + curve_width);
8227 if self.corner_radius > Pixels::ZERO {
8228 builder.curve_to(bottom_left - curve_height, bottom_left);
8229 }
8230 }
8231 }
8232
8233 if first_line.start_x > last_line.start_x {
8234 let curve_width = curve_width(last_line.start_x, first_line.start_x);
8235 let second_top_left = point(last_line.start_x, start_y + self.line_height);
8236 builder.line_to(second_top_left + curve_height);
8237 if self.corner_radius > Pixels::ZERO {
8238 builder.curve_to(second_top_left + curve_width, second_top_left);
8239 }
8240 let first_bottom_left = point(first_line.start_x, second_top_left.y);
8241 builder.line_to(first_bottom_left - curve_width);
8242 if self.corner_radius > Pixels::ZERO {
8243 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
8244 }
8245 }
8246
8247 builder.line_to(first_top_left + curve_height);
8248 if self.corner_radius > Pixels::ZERO {
8249 builder.curve_to(first_top_left + top_curve_width, first_top_left);
8250 }
8251 builder.line_to(first_top_right - top_curve_width);
8252
8253 if let Ok(path) = builder.build() {
8254 window.paint_path(path, self.color);
8255 }
8256 }
8257}
8258
8259enum CursorPopoverType {
8260 CodeContextMenu,
8261 EditPrediction,
8262}
8263
8264pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8265 (delta.pow(1.5) / 100.0).into()
8266}
8267
8268fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
8269 (delta.pow(1.2) / 300.0).into()
8270}
8271
8272pub fn register_action<T: Action>(
8273 editor: &Entity<Editor>,
8274 window: &mut Window,
8275 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
8276) {
8277 let editor = editor.clone();
8278 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
8279 let action = action.downcast_ref().unwrap();
8280 if phase == DispatchPhase::Bubble {
8281 editor.update(cx, |editor, cx| {
8282 listener(editor, action, window, cx);
8283 })
8284 }
8285 })
8286}
8287
8288fn compute_auto_height_layout(
8289 editor: &mut Editor,
8290 max_lines: usize,
8291 max_line_number_width: Pixels,
8292 known_dimensions: Size<Option<Pixels>>,
8293 available_width: AvailableSpace,
8294 window: &mut Window,
8295 cx: &mut Context<Editor>,
8296) -> Option<Size<Pixels>> {
8297 let width = known_dimensions.width.or({
8298 if let AvailableSpace::Definite(available_width) = available_width {
8299 Some(available_width)
8300 } else {
8301 None
8302 }
8303 })?;
8304 if let Some(height) = known_dimensions.height {
8305 return Some(size(width, height));
8306 }
8307
8308 let style = editor.style.as_ref().unwrap();
8309 let font_id = window.text_system().resolve_font(&style.text.font());
8310 let font_size = style.text.font_size.to_pixels(window.rem_size());
8311 let line_height = style.text.line_height_in_pixels(window.rem_size());
8312 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
8313
8314 let mut snapshot = editor.snapshot(window, cx);
8315 let gutter_dimensions = snapshot
8316 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
8317 .unwrap_or_default();
8318
8319 editor.gutter_dimensions = gutter_dimensions;
8320 let text_width = width - gutter_dimensions.width;
8321 let overscroll = size(em_width, px(0.));
8322
8323 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
8324 if editor.set_wrap_width(Some(editor_width), cx) {
8325 snapshot = editor.snapshot(window, cx);
8326 }
8327
8328 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
8329 let height = scroll_height
8330 .max(line_height)
8331 .min(line_height * max_lines as f32);
8332
8333 Some(size(width, height))
8334}
8335
8336#[cfg(test)]
8337mod tests {
8338 use super::*;
8339 use crate::{
8340 display_map::{BlockPlacement, BlockProperties},
8341 editor_tests::{init_test, update_test_language_settings},
8342 Editor, MultiBuffer,
8343 };
8344 use gpui::{TestAppContext, VisualTestContext};
8345 use language::language_settings;
8346 use log::info;
8347 use similar::DiffableStr;
8348 use std::num::NonZeroU32;
8349 use util::test::sample_text;
8350
8351 #[gpui::test]
8352 fn test_shape_line_numbers(cx: &mut TestAppContext) {
8353 init_test(cx, |_| {});
8354 let window = cx.add_window(|window, cx| {
8355 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
8356 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8357 });
8358
8359 let editor = window.root(cx).unwrap();
8360 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
8361 let line_height = window
8362 .update(cx, |_, window, _| {
8363 style.text.line_height_in_pixels(window.rem_size())
8364 })
8365 .unwrap();
8366 let element = EditorElement::new(&editor, style);
8367 let snapshot = window
8368 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
8369 .unwrap();
8370
8371 let layouts = cx
8372 .update_window(*window, |_, window, cx| {
8373 element.layout_line_numbers(
8374 None,
8375 GutterDimensions {
8376 left_padding: Pixels::ZERO,
8377 right_padding: Pixels::ZERO,
8378 width: px(30.0),
8379 margin: Pixels::ZERO,
8380 git_blame_entries_width: None,
8381 },
8382 line_height,
8383 gpui::Point::default(),
8384 DisplayRow(0)..DisplayRow(6),
8385 &(0..6)
8386 .map(|row| RowInfo {
8387 buffer_row: Some(row),
8388 ..Default::default()
8389 })
8390 .collect::<Vec<_>>(),
8391 Some(DisplayPoint::new(DisplayRow(0), 0)),
8392 &snapshot,
8393 window,
8394 cx,
8395 )
8396 })
8397 .unwrap();
8398 assert_eq!(layouts.len(), 6);
8399
8400 let relative_rows = window
8401 .update(cx, |editor, window, cx| {
8402 let snapshot = editor.snapshot(window, cx);
8403 element.calculate_relative_line_numbers(
8404 &snapshot,
8405 &(DisplayRow(0)..DisplayRow(6)),
8406 Some(DisplayRow(3)),
8407 )
8408 })
8409 .unwrap();
8410 assert_eq!(relative_rows[&DisplayRow(0)], 3);
8411 assert_eq!(relative_rows[&DisplayRow(1)], 2);
8412 assert_eq!(relative_rows[&DisplayRow(2)], 1);
8413 // current line has no relative number
8414 assert_eq!(relative_rows[&DisplayRow(4)], 1);
8415 assert_eq!(relative_rows[&DisplayRow(5)], 2);
8416
8417 // works if cursor is before screen
8418 let relative_rows = window
8419 .update(cx, |editor, window, cx| {
8420 let snapshot = editor.snapshot(window, cx);
8421 element.calculate_relative_line_numbers(
8422 &snapshot,
8423 &(DisplayRow(3)..DisplayRow(6)),
8424 Some(DisplayRow(1)),
8425 )
8426 })
8427 .unwrap();
8428 assert_eq!(relative_rows.len(), 3);
8429 assert_eq!(relative_rows[&DisplayRow(3)], 2);
8430 assert_eq!(relative_rows[&DisplayRow(4)], 3);
8431 assert_eq!(relative_rows[&DisplayRow(5)], 4);
8432
8433 // works if cursor is after screen
8434 let relative_rows = window
8435 .update(cx, |editor, window, cx| {
8436 let snapshot = editor.snapshot(window, cx);
8437 element.calculate_relative_line_numbers(
8438 &snapshot,
8439 &(DisplayRow(0)..DisplayRow(3)),
8440 Some(DisplayRow(6)),
8441 )
8442 })
8443 .unwrap();
8444 assert_eq!(relative_rows.len(), 3);
8445 assert_eq!(relative_rows[&DisplayRow(0)], 5);
8446 assert_eq!(relative_rows[&DisplayRow(1)], 4);
8447 assert_eq!(relative_rows[&DisplayRow(2)], 3);
8448 }
8449
8450 #[gpui::test]
8451 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
8452 init_test(cx, |_| {});
8453
8454 let window = cx.add_window(|window, cx| {
8455 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
8456 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8457 });
8458 let cx = &mut VisualTestContext::from_window(*window, cx);
8459 let editor = window.root(cx).unwrap();
8460 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8461
8462 window
8463 .update(cx, |editor, window, cx| {
8464 editor.cursor_shape = CursorShape::Block;
8465 editor.change_selections(None, window, cx, |s| {
8466 s.select_ranges([
8467 Point::new(0, 0)..Point::new(1, 0),
8468 Point::new(3, 2)..Point::new(3, 3),
8469 Point::new(5, 6)..Point::new(6, 0),
8470 ]);
8471 });
8472 })
8473 .unwrap();
8474
8475 let (_, state) = cx.draw(
8476 point(px(500.), px(500.)),
8477 size(px(500.), px(500.)),
8478 |_, _| EditorElement::new(&editor, style),
8479 );
8480
8481 assert_eq!(state.selections.len(), 1);
8482 let local_selections = &state.selections[0].1;
8483 assert_eq!(local_selections.len(), 3);
8484 // moves cursor back one line
8485 assert_eq!(
8486 local_selections[0].head,
8487 DisplayPoint::new(DisplayRow(0), 6)
8488 );
8489 assert_eq!(
8490 local_selections[0].range,
8491 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
8492 );
8493
8494 // moves cursor back one column
8495 assert_eq!(
8496 local_selections[1].range,
8497 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
8498 );
8499 assert_eq!(
8500 local_selections[1].head,
8501 DisplayPoint::new(DisplayRow(3), 2)
8502 );
8503
8504 // leaves cursor on the max point
8505 assert_eq!(
8506 local_selections[2].range,
8507 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
8508 );
8509 assert_eq!(
8510 local_selections[2].head,
8511 DisplayPoint::new(DisplayRow(6), 0)
8512 );
8513
8514 // active lines does not include 1 (even though the range of the selection does)
8515 assert_eq!(
8516 state.active_rows.keys().cloned().collect::<Vec<_>>(),
8517 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
8518 );
8519
8520 // multi-buffer support
8521 // in DisplayPoint coordinates, this is what we're dealing with:
8522 // 0: [[file
8523 // 1: header
8524 // 2: section]]
8525 // 3: aaaaaa
8526 // 4: bbbbbb
8527 // 5: cccccc
8528 // 6:
8529 // 7: [[footer]]
8530 // 8: [[header]]
8531 // 9: ffffff
8532 // 10: gggggg
8533 // 11: hhhhhh
8534 // 12:
8535 // 13: [[footer]]
8536 // 14: [[file
8537 // 15: header
8538 // 16: section]]
8539 // 17: bbbbbb
8540 // 18: cccccc
8541 // 19: dddddd
8542 // 20: [[footer]]
8543 let window = cx.add_window(|window, cx| {
8544 let buffer = MultiBuffer::build_multi(
8545 [
8546 (
8547 &(sample_text(8, 6, 'a') + "\n"),
8548 vec![
8549 Point::new(0, 0)..Point::new(3, 0),
8550 Point::new(4, 0)..Point::new(7, 0),
8551 ],
8552 ),
8553 (
8554 &(sample_text(8, 6, 'a') + "\n"),
8555 vec![Point::new(1, 0)..Point::new(3, 0)],
8556 ),
8557 ],
8558 cx,
8559 );
8560 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8561 });
8562 let editor = window.root(cx).unwrap();
8563 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8564 let _state = window.update(cx, |editor, window, cx| {
8565 editor.cursor_shape = CursorShape::Block;
8566 editor.change_selections(None, window, cx, |s| {
8567 s.select_display_ranges([
8568 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
8569 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
8570 ]);
8571 });
8572 });
8573
8574 let (_, state) = cx.draw(
8575 point(px(500.), px(500.)),
8576 size(px(500.), px(500.)),
8577 |_, _| EditorElement::new(&editor, style),
8578 );
8579 assert_eq!(state.selections.len(), 1);
8580 let local_selections = &state.selections[0].1;
8581 assert_eq!(local_selections.len(), 2);
8582
8583 // moves cursor on excerpt boundary back a line
8584 // and doesn't allow selection to bleed through
8585 assert_eq!(
8586 local_selections[0].range,
8587 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
8588 );
8589 assert_eq!(
8590 local_selections[0].head,
8591 DisplayPoint::new(DisplayRow(6), 0)
8592 );
8593 // moves cursor on buffer boundary back two lines
8594 // and doesn't allow selection to bleed through
8595 assert_eq!(
8596 local_selections[1].range,
8597 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
8598 );
8599 assert_eq!(
8600 local_selections[1].head,
8601 DisplayPoint::new(DisplayRow(12), 0)
8602 );
8603 }
8604
8605 #[gpui::test]
8606 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
8607 init_test(cx, |_| {});
8608
8609 let window = cx.add_window(|window, cx| {
8610 let buffer = MultiBuffer::build_simple("", cx);
8611 Editor::new(EditorMode::Full, buffer, None, true, window, cx)
8612 });
8613 let cx = &mut VisualTestContext::from_window(*window, cx);
8614 let editor = window.root(cx).unwrap();
8615 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8616 window
8617 .update(cx, |editor, window, cx| {
8618 editor.set_placeholder_text("hello", cx);
8619 editor.insert_blocks(
8620 [BlockProperties {
8621 style: BlockStyle::Fixed,
8622 placement: BlockPlacement::Above(Anchor::min()),
8623 height: 3,
8624 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
8625 priority: 0,
8626 }],
8627 None,
8628 cx,
8629 );
8630
8631 // Blur the editor so that it displays placeholder text.
8632 window.blur();
8633 })
8634 .unwrap();
8635
8636 let (_, state) = cx.draw(
8637 point(px(500.), px(500.)),
8638 size(px(500.), px(500.)),
8639 |_, _| EditorElement::new(&editor, style),
8640 );
8641 assert_eq!(state.position_map.line_layouts.len(), 4);
8642 assert_eq!(state.line_numbers.len(), 1);
8643 assert_eq!(
8644 state
8645 .line_numbers
8646 .get(&MultiBufferRow(0))
8647 .and_then(|line_number| line_number.shaped_line.text.as_str()),
8648 Some("1")
8649 );
8650 }
8651
8652 #[gpui::test]
8653 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
8654 const TAB_SIZE: u32 = 4;
8655
8656 let input_text = "\t \t|\t| a b";
8657 let expected_invisibles = vec![
8658 Invisible::Tab {
8659 line_start_offset: 0,
8660 line_end_offset: TAB_SIZE as usize,
8661 },
8662 Invisible::Whitespace {
8663 line_offset: TAB_SIZE as usize,
8664 },
8665 Invisible::Tab {
8666 line_start_offset: TAB_SIZE as usize + 1,
8667 line_end_offset: TAB_SIZE as usize * 2,
8668 },
8669 Invisible::Tab {
8670 line_start_offset: TAB_SIZE as usize * 2 + 1,
8671 line_end_offset: TAB_SIZE as usize * 3,
8672 },
8673 Invisible::Whitespace {
8674 line_offset: TAB_SIZE as usize * 3 + 1,
8675 },
8676 Invisible::Whitespace {
8677 line_offset: TAB_SIZE as usize * 3 + 3,
8678 },
8679 ];
8680 assert_eq!(
8681 expected_invisibles.len(),
8682 input_text
8683 .chars()
8684 .filter(|initial_char| initial_char.is_whitespace())
8685 .count(),
8686 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8687 );
8688
8689 for show_line_numbers in [true, false] {
8690 init_test(cx, |s| {
8691 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8692 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
8693 });
8694
8695 let actual_invisibles = collect_invisibles_from_new_editor(
8696 cx,
8697 EditorMode::Full,
8698 input_text,
8699 px(500.0),
8700 show_line_numbers,
8701 );
8702
8703 assert_eq!(expected_invisibles, actual_invisibles);
8704 }
8705 }
8706
8707 #[gpui::test]
8708 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
8709 init_test(cx, |s| {
8710 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8711 s.defaults.tab_size = NonZeroU32::new(4);
8712 });
8713
8714 for editor_mode_without_invisibles in [
8715 EditorMode::SingleLine { auto_width: false },
8716 EditorMode::AutoHeight { max_lines: 100 },
8717 ] {
8718 for show_line_numbers in [true, false] {
8719 let invisibles = collect_invisibles_from_new_editor(
8720 cx,
8721 editor_mode_without_invisibles,
8722 "\t\t\t| | a b",
8723 px(500.0),
8724 show_line_numbers,
8725 );
8726 assert!(invisibles.is_empty(),
8727 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
8728 }
8729 }
8730 }
8731
8732 #[gpui::test]
8733 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
8734 let tab_size = 4;
8735 let input_text = "a\tbcd ".repeat(9);
8736 let repeated_invisibles = [
8737 Invisible::Tab {
8738 line_start_offset: 1,
8739 line_end_offset: tab_size as usize,
8740 },
8741 Invisible::Whitespace {
8742 line_offset: tab_size as usize + 3,
8743 },
8744 Invisible::Whitespace {
8745 line_offset: tab_size as usize + 4,
8746 },
8747 Invisible::Whitespace {
8748 line_offset: tab_size as usize + 5,
8749 },
8750 Invisible::Whitespace {
8751 line_offset: tab_size as usize + 6,
8752 },
8753 Invisible::Whitespace {
8754 line_offset: tab_size as usize + 7,
8755 },
8756 ];
8757 let expected_invisibles = std::iter::once(repeated_invisibles)
8758 .cycle()
8759 .take(9)
8760 .flatten()
8761 .collect::<Vec<_>>();
8762 assert_eq!(
8763 expected_invisibles.len(),
8764 input_text
8765 .chars()
8766 .filter(|initial_char| initial_char.is_whitespace())
8767 .count(),
8768 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
8769 );
8770 info!("Expected invisibles: {expected_invisibles:?}");
8771
8772 init_test(cx, |_| {});
8773
8774 // Put the same string with repeating whitespace pattern into editors of various size,
8775 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
8776 let resize_step = 10.0;
8777 let mut editor_width = 200.0;
8778 while editor_width <= 1000.0 {
8779 for show_line_numbers in [true, false] {
8780 update_test_language_settings(cx, |s| {
8781 s.defaults.tab_size = NonZeroU32::new(tab_size);
8782 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
8783 s.defaults.preferred_line_length = Some(editor_width as u32);
8784 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
8785 });
8786
8787 let actual_invisibles = collect_invisibles_from_new_editor(
8788 cx,
8789 EditorMode::Full,
8790 &input_text,
8791 px(editor_width),
8792 show_line_numbers,
8793 );
8794
8795 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
8796 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
8797 let mut i = 0;
8798 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
8799 i = actual_index;
8800 match expected_invisibles.get(i) {
8801 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
8802 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
8803 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
8804 _ => {
8805 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
8806 }
8807 },
8808 None => {
8809 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
8810 }
8811 }
8812 }
8813 let missing_expected_invisibles = &expected_invisibles[i + 1..];
8814 assert!(
8815 missing_expected_invisibles.is_empty(),
8816 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
8817 );
8818
8819 editor_width += resize_step;
8820 }
8821 }
8822 }
8823
8824 fn collect_invisibles_from_new_editor(
8825 cx: &mut TestAppContext,
8826 editor_mode: EditorMode,
8827 input_text: &str,
8828 editor_width: Pixels,
8829 show_line_numbers: bool,
8830 ) -> Vec<Invisible> {
8831 info!(
8832 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
8833 editor_width.0
8834 );
8835 let window = cx.add_window(|window, cx| {
8836 let buffer = MultiBuffer::build_simple(input_text, cx);
8837 Editor::new(editor_mode, buffer, None, true, window, cx)
8838 });
8839 let cx = &mut VisualTestContext::from_window(*window, cx);
8840 let editor = window.root(cx).unwrap();
8841
8842 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
8843 window
8844 .update(cx, |editor, _, cx| {
8845 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
8846 editor.set_wrap_width(Some(editor_width), cx);
8847 editor.set_show_line_numbers(show_line_numbers, cx);
8848 })
8849 .unwrap();
8850 let (_, state) = cx.draw(
8851 point(px(500.), px(500.)),
8852 size(px(500.), px(500.)),
8853 |_, _| EditorElement::new(&editor, style),
8854 );
8855 state
8856 .position_map
8857 .line_layouts
8858 .iter()
8859 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
8860 .cloned()
8861 .collect()
8862 }
8863}
8864
8865fn diff_hunk_controls(
8866 row: u32,
8867 hunk_range: Range<Anchor>,
8868 line_height: Pixels,
8869 editor: &Entity<Editor>,
8870 cx: &mut App,
8871) -> AnyElement {
8872 h_flex()
8873 .h(line_height)
8874 .mr_1()
8875 .gap_1()
8876 .px_1()
8877 .pb_1()
8878 .border_b_1()
8879 .border_color(cx.theme().colors().border_variant)
8880 .rounded_b_lg()
8881 .bg(cx.theme().colors().editor_background)
8882 .gap_1()
8883 .child(
8884 IconButton::new(("next-hunk", row as u64), IconName::ArrowDown)
8885 .shape(IconButtonShape::Square)
8886 .icon_size(IconSize::Small)
8887 // .disabled(!has_multiple_hunks)
8888 .tooltip({
8889 let focus_handle = editor.focus_handle(cx);
8890 move |window, cx| {
8891 Tooltip::for_action_in("Next Hunk", &GoToHunk, &focus_handle, window, cx)
8892 }
8893 })
8894 .on_click({
8895 let editor = editor.clone();
8896 move |_event, window, cx| {
8897 editor.update(cx, |editor, cx| {
8898 let snapshot = editor.snapshot(window, cx);
8899 let position = hunk_range.end.to_point(&snapshot.buffer_snapshot);
8900 editor.go_to_hunk_after_position(&snapshot, position, window, cx);
8901 editor.expand_selected_diff_hunks(cx);
8902 });
8903 }
8904 }),
8905 )
8906 .child(
8907 IconButton::new(("prev-hunk", row as u64), IconName::ArrowUp)
8908 .shape(IconButtonShape::Square)
8909 .icon_size(IconSize::Small)
8910 // .disabled(!has_multiple_hunks)
8911 .tooltip({
8912 let focus_handle = editor.focus_handle(cx);
8913 move |window, cx| {
8914 Tooltip::for_action_in(
8915 "Previous Hunk",
8916 &GoToPrevHunk,
8917 &focus_handle,
8918 window,
8919 cx,
8920 )
8921 }
8922 })
8923 .on_click({
8924 let editor = editor.clone();
8925 move |_event, window, cx| {
8926 editor.update(cx, |editor, cx| {
8927 let snapshot = editor.snapshot(window, cx);
8928 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8929 editor.go_to_hunk_before_position(&snapshot, point, window, cx);
8930 editor.expand_selected_diff_hunks(cx);
8931 });
8932 }
8933 }),
8934 )
8935 .child(
8936 IconButton::new("discard", IconName::Undo)
8937 .shape(IconButtonShape::Square)
8938 .icon_size(IconSize::Small)
8939 .tooltip({
8940 let focus_handle = editor.focus_handle(cx);
8941 move |window, cx| {
8942 Tooltip::for_action_in(
8943 "Discard Hunk",
8944 &RevertSelectedHunks,
8945 &focus_handle,
8946 window,
8947 cx,
8948 )
8949 }
8950 })
8951 .on_click({
8952 let editor = editor.clone();
8953 move |_event, window, cx| {
8954 editor.update(cx, |editor, cx| {
8955 let snapshot = editor.snapshot(window, cx);
8956 let point = hunk_range.start.to_point(&snapshot.buffer_snapshot);
8957 editor.revert_hunks_in_ranges([point..point].into_iter(), window, cx);
8958 });
8959 }
8960 }),
8961 )
8962 .into_any_element()
8963}