1use crate::{
2 blame_entry_tooltip::{blame_entry_relative_timestamp, BlameEntryTooltip},
3 display_map::{
4 BlockContext, BlockStyle, DisplaySnapshot, HighlightedChunk, ToDisplayPoint, TransformBlock,
5 },
6 editor_settings::{
7 CurrentLineHighlight, DoubleClickInMultibuffer, MultiCursorModifier, ShowScrollbar,
8 },
9 git::{
10 blame::{CommitDetails, GitBlame},
11 diff_hunk_to_display, DisplayDiffHunk,
12 },
13 hover_popover::{
14 self, hover_at, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
15 },
16 hunk_status,
17 items::BufferSearchHighlights,
18 mouse_context_menu::{self, MouseContextMenu},
19 scroll::scroll_amount::ScrollAmount,
20 CodeActionsMenu, CursorShape, DisplayPoint, DisplayRow, DocumentHighlightRead,
21 DocumentHighlightWrite, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
22 ExpandExcerpts, GutterDimensions, HalfPageDown, HalfPageUp, HoveredCursor, HunkToExpand,
23 LineDown, LineUp, OpenExcerpts, PageDown, PageUp, Point, RowExt, RowRangeExt, SelectPhase,
24 Selection, SoftWrap, ToPoint, CURSORS_VISIBLE_FOR, MAX_LINE_LEN,
25};
26use client::ParticipantIndex;
27use collections::{BTreeMap, HashMap};
28use git::{blame::BlameEntry, diff::DiffHunkStatus, Oid};
29use gpui::{
30 anchored, deferred, div, fill, outline, point, px, quad, relative, size, svg,
31 transparent_black, Action, AnchorCorner, AnyElement, AvailableSpace, Bounds, ClipboardItem,
32 ContentMask, Corners, CursorStyle, DispatchPhase, Edges, Element, ElementInputHandler, Entity,
33 FontId, GlobalElementId, Hitbox, Hsla, InteractiveElement, IntoElement, Length,
34 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
35 ParentElement, Pixels, ScrollDelta, ScrollWheelEvent, ShapedLine, SharedString, Size,
36 StatefulInteractiveElement, Style, Styled, TextRun, TextStyle, TextStyleRefinement, View,
37 ViewContext, WeakView, WindowContext,
38};
39use itertools::Itertools;
40use language::language_settings::{
41 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
42};
43use lsp::DiagnosticSeverity;
44use multi_buffer::{Anchor, MultiBufferPoint, MultiBufferRow};
45use project::{
46 project_settings::{GitGutterSetting, ProjectSettings},
47 ProjectPath,
48};
49use settings::Settings;
50use smallvec::{smallvec, SmallVec};
51use std::{
52 any::TypeId,
53 borrow::Cow,
54 cmp::{self, Ordering},
55 fmt::{self, Write},
56 iter, mem,
57 ops::{Deref, Range},
58 sync::Arc,
59};
60use sum_tree::Bias;
61use theme::{ActiveTheme, PlayerColor};
62use ui::prelude::*;
63use ui::{h_flex, ButtonLike, ButtonStyle, ContextMenu, Tooltip};
64use util::ResultExt;
65use workspace::{item::Item, Workspace};
66
67struct SelectionLayout {
68 head: DisplayPoint,
69 cursor_shape: CursorShape,
70 is_newest: bool,
71 is_local: bool,
72 range: Range<DisplayPoint>,
73 active_rows: Range<DisplayRow>,
74 user_name: Option<SharedString>,
75}
76
77impl SelectionLayout {
78 fn new<T: ToPoint + ToDisplayPoint + Clone>(
79 selection: Selection<T>,
80 line_mode: bool,
81 cursor_shape: CursorShape,
82 map: &DisplaySnapshot,
83 is_newest: bool,
84 is_local: bool,
85 user_name: Option<SharedString>,
86 ) -> Self {
87 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
88 let display_selection = point_selection.map(|p| p.to_display_point(map));
89 let mut range = display_selection.range();
90 let mut head = display_selection.head();
91 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
92 ..map.next_line_boundary(point_selection.end).1.row();
93
94 // vim visual line mode
95 if line_mode {
96 let point_range = map.expand_to_line(point_selection.range());
97 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
98 }
99
100 // any vim visual mode (including line mode)
101 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
102 && !range.is_empty()
103 && !selection.reversed
104 {
105 if head.column() > 0 {
106 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
107 } else if head.row().0 > 0 && head != map.max_point() {
108 head = map.clip_point(
109 DisplayPoint::new(
110 head.row().previous_row(),
111 map.line_len(head.row().previous_row()),
112 ),
113 Bias::Left,
114 );
115 // updating range.end is a no-op unless you're cursor is
116 // on the newline containing a multi-buffer divider
117 // in which case the clip_point may have moved the head up
118 // an additional row.
119 range.end = DisplayPoint::new(head.row().next_row(), 0);
120 active_rows.end = head.row();
121 }
122 }
123
124 Self {
125 head,
126 cursor_shape,
127 is_newest,
128 is_local,
129 range,
130 active_rows,
131 user_name,
132 }
133 }
134}
135
136pub struct EditorElement {
137 editor: View<Editor>,
138 style: EditorStyle,
139}
140
141type DisplayRowDelta = u32;
142
143impl EditorElement {
144 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(13.);
145
146 pub fn new(editor: &View<Editor>, style: EditorStyle) -> Self {
147 Self {
148 editor: editor.clone(),
149 style,
150 }
151 }
152
153 fn register_actions(&self, cx: &mut WindowContext) {
154 let view = &self.editor;
155 view.update(cx, |editor, cx| {
156 for action in editor.editor_actions.iter() {
157 (action)(cx)
158 }
159 });
160
161 crate::rust_analyzer_ext::apply_related_actions(view, cx);
162 register_action(view, cx, Editor::move_left);
163 register_action(view, cx, Editor::move_right);
164 register_action(view, cx, Editor::move_down);
165 register_action(view, cx, Editor::move_down_by_lines);
166 register_action(view, cx, Editor::select_down_by_lines);
167 register_action(view, cx, Editor::move_up);
168 register_action(view, cx, Editor::move_up_by_lines);
169 register_action(view, cx, Editor::select_up_by_lines);
170 register_action(view, cx, Editor::cancel);
171 register_action(view, cx, Editor::newline);
172 register_action(view, cx, Editor::newline_above);
173 register_action(view, cx, Editor::newline_below);
174 register_action(view, cx, Editor::backspace);
175 register_action(view, cx, Editor::delete);
176 register_action(view, cx, Editor::tab);
177 register_action(view, cx, Editor::tab_prev);
178 register_action(view, cx, Editor::indent);
179 register_action(view, cx, Editor::outdent);
180 register_action(view, cx, Editor::delete_line);
181 register_action(view, cx, Editor::join_lines);
182 register_action(view, cx, Editor::sort_lines_case_sensitive);
183 register_action(view, cx, Editor::sort_lines_case_insensitive);
184 register_action(view, cx, Editor::reverse_lines);
185 register_action(view, cx, Editor::shuffle_lines);
186 register_action(view, cx, Editor::convert_to_upper_case);
187 register_action(view, cx, Editor::convert_to_lower_case);
188 register_action(view, cx, Editor::convert_to_title_case);
189 register_action(view, cx, Editor::convert_to_snake_case);
190 register_action(view, cx, Editor::convert_to_kebab_case);
191 register_action(view, cx, Editor::convert_to_upper_camel_case);
192 register_action(view, cx, Editor::convert_to_lower_camel_case);
193 register_action(view, cx, Editor::convert_to_opposite_case);
194 register_action(view, cx, Editor::delete_to_previous_word_start);
195 register_action(view, cx, Editor::delete_to_previous_subword_start);
196 register_action(view, cx, Editor::delete_to_next_word_end);
197 register_action(view, cx, Editor::delete_to_next_subword_end);
198 register_action(view, cx, Editor::delete_to_beginning_of_line);
199 register_action(view, cx, Editor::delete_to_end_of_line);
200 register_action(view, cx, Editor::cut_to_end_of_line);
201 register_action(view, cx, Editor::duplicate_line_up);
202 register_action(view, cx, Editor::duplicate_line_down);
203 register_action(view, cx, Editor::move_line_up);
204 register_action(view, cx, Editor::move_line_down);
205 register_action(view, cx, Editor::transpose);
206 register_action(view, cx, Editor::cut);
207 register_action(view, cx, Editor::copy);
208 register_action(view, cx, Editor::paste);
209 register_action(view, cx, Editor::undo);
210 register_action(view, cx, Editor::redo);
211 register_action(view, cx, Editor::move_page_up);
212 register_action(view, cx, Editor::move_page_down);
213 register_action(view, cx, Editor::next_screen);
214 register_action(view, cx, Editor::scroll_cursor_top);
215 register_action(view, cx, Editor::scroll_cursor_center);
216 register_action(view, cx, Editor::scroll_cursor_bottom);
217 register_action(view, cx, |editor, _: &LineDown, cx| {
218 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
219 });
220 register_action(view, cx, |editor, _: &LineUp, cx| {
221 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
222 });
223 register_action(view, cx, |editor, _: &HalfPageDown, cx| {
224 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
225 });
226 register_action(view, cx, |editor, _: &HalfPageUp, cx| {
227 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
228 });
229 register_action(view, cx, |editor, _: &PageDown, cx| {
230 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
231 });
232 register_action(view, cx, |editor, _: &PageUp, cx| {
233 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
234 });
235 register_action(view, cx, Editor::move_to_previous_word_start);
236 register_action(view, cx, Editor::move_to_previous_subword_start);
237 register_action(view, cx, Editor::move_to_next_word_end);
238 register_action(view, cx, Editor::move_to_next_subword_end);
239 register_action(view, cx, Editor::move_to_beginning_of_line);
240 register_action(view, cx, Editor::move_to_end_of_line);
241 register_action(view, cx, Editor::move_to_start_of_paragraph);
242 register_action(view, cx, Editor::move_to_end_of_paragraph);
243 register_action(view, cx, Editor::move_to_beginning);
244 register_action(view, cx, Editor::move_to_end);
245 register_action(view, cx, Editor::select_up);
246 register_action(view, cx, Editor::select_down);
247 register_action(view, cx, Editor::select_left);
248 register_action(view, cx, Editor::select_right);
249 register_action(view, cx, Editor::select_to_previous_word_start);
250 register_action(view, cx, Editor::select_to_previous_subword_start);
251 register_action(view, cx, Editor::select_to_next_word_end);
252 register_action(view, cx, Editor::select_to_next_subword_end);
253 register_action(view, cx, Editor::select_to_beginning_of_line);
254 register_action(view, cx, Editor::select_to_end_of_line);
255 register_action(view, cx, Editor::select_to_start_of_paragraph);
256 register_action(view, cx, Editor::select_to_end_of_paragraph);
257 register_action(view, cx, Editor::select_to_beginning);
258 register_action(view, cx, Editor::select_to_end);
259 register_action(view, cx, Editor::select_all);
260 register_action(view, cx, |editor, action, cx| {
261 editor.select_all_matches(action, cx).log_err();
262 });
263 register_action(view, cx, Editor::select_line);
264 register_action(view, cx, Editor::split_selection_into_lines);
265 register_action(view, cx, Editor::add_selection_above);
266 register_action(view, cx, Editor::add_selection_below);
267 register_action(view, cx, |editor, action, cx| {
268 editor.select_next(action, cx).log_err();
269 });
270 register_action(view, cx, |editor, action, cx| {
271 editor.select_previous(action, cx).log_err();
272 });
273 register_action(view, cx, Editor::toggle_comments);
274 register_action(view, cx, Editor::select_larger_syntax_node);
275 register_action(view, cx, Editor::select_smaller_syntax_node);
276 register_action(view, cx, Editor::move_to_enclosing_bracket);
277 register_action(view, cx, Editor::undo_selection);
278 register_action(view, cx, Editor::redo_selection);
279 if !view.read(cx).is_singleton(cx) {
280 register_action(view, cx, Editor::expand_excerpts);
281 register_action(view, cx, Editor::expand_excerpts_up);
282 register_action(view, cx, Editor::expand_excerpts_down);
283 }
284 register_action(view, cx, Editor::go_to_diagnostic);
285 register_action(view, cx, Editor::go_to_prev_diagnostic);
286 register_action(view, cx, Editor::go_to_hunk);
287 register_action(view, cx, Editor::go_to_prev_hunk);
288 register_action(view, cx, |editor, a, cx| {
289 editor.go_to_definition(a, cx).detach_and_log_err(cx);
290 });
291 register_action(view, cx, |editor, a, cx| {
292 editor.go_to_definition_split(a, cx).detach_and_log_err(cx);
293 });
294 register_action(view, cx, |editor, a, cx| {
295 editor.go_to_implementation(a, cx).detach_and_log_err(cx);
296 });
297 register_action(view, cx, |editor, a, cx| {
298 editor
299 .go_to_implementation_split(a, cx)
300 .detach_and_log_err(cx);
301 });
302 register_action(view, cx, |editor, a, cx| {
303 editor.go_to_type_definition(a, cx).detach_and_log_err(cx);
304 });
305 register_action(view, cx, |editor, a, cx| {
306 editor
307 .go_to_type_definition_split(a, cx)
308 .detach_and_log_err(cx);
309 });
310 register_action(view, cx, Editor::open_url);
311 register_action(view, cx, Editor::fold);
312 register_action(view, cx, Editor::fold_at);
313 register_action(view, cx, Editor::unfold_lines);
314 register_action(view, cx, Editor::unfold_at);
315 register_action(view, cx, Editor::fold_selected_ranges);
316 register_action(view, cx, Editor::show_completions);
317 register_action(view, cx, Editor::toggle_code_actions);
318 register_action(view, cx, Editor::open_excerpts);
319 register_action(view, cx, Editor::open_excerpts_in_split);
320 register_action(view, cx, Editor::toggle_soft_wrap);
321 register_action(view, cx, Editor::toggle_line_numbers);
322 register_action(view, cx, Editor::toggle_indent_guides);
323 register_action(view, cx, Editor::toggle_inlay_hints);
324 register_action(view, cx, hover_popover::hover);
325 register_action(view, cx, Editor::reveal_in_finder);
326 register_action(view, cx, Editor::copy_path);
327 register_action(view, cx, Editor::copy_relative_path);
328 register_action(view, cx, Editor::copy_highlight_json);
329 register_action(view, cx, Editor::copy_permalink_to_line);
330 register_action(view, cx, Editor::open_permalink_to_line);
331 register_action(view, cx, Editor::toggle_git_blame);
332 register_action(view, cx, Editor::toggle_git_blame_inline);
333 register_action(view, cx, Editor::toggle_hunk_diff);
334 register_action(view, cx, Editor::expand_all_hunk_diffs);
335 register_action(view, cx, |editor, action, cx| {
336 if let Some(task) = editor.format(action, cx) {
337 task.detach_and_log_err(cx);
338 } else {
339 cx.propagate();
340 }
341 });
342 register_action(view, cx, Editor::restart_language_server);
343 register_action(view, cx, Editor::show_character_palette);
344 register_action(view, cx, |editor, action, cx| {
345 if let Some(task) = editor.confirm_completion(action, cx) {
346 task.detach_and_log_err(cx);
347 } else {
348 cx.propagate();
349 }
350 });
351 register_action(view, cx, |editor, action, cx| {
352 if let Some(task) = editor.confirm_code_action(action, cx) {
353 task.detach_and_log_err(cx);
354 } else {
355 cx.propagate();
356 }
357 });
358 register_action(view, cx, |editor, action, cx| {
359 if let Some(task) = editor.rename(action, cx) {
360 task.detach_and_log_err(cx);
361 } else {
362 cx.propagate();
363 }
364 });
365 register_action(view, cx, |editor, action, cx| {
366 if let Some(task) = editor.confirm_rename(action, cx) {
367 task.detach_and_log_err(cx);
368 } else {
369 cx.propagate();
370 }
371 });
372 register_action(view, cx, |editor, action, cx| {
373 if let Some(task) = editor.find_all_references(action, cx) {
374 task.detach_and_log_err(cx);
375 } else {
376 cx.propagate();
377 }
378 });
379 register_action(view, cx, Editor::next_inline_completion);
380 register_action(view, cx, Editor::previous_inline_completion);
381 register_action(view, cx, Editor::show_inline_completion);
382 register_action(view, cx, Editor::context_menu_first);
383 register_action(view, cx, Editor::context_menu_prev);
384 register_action(view, cx, Editor::context_menu_next);
385 register_action(view, cx, Editor::context_menu_last);
386 register_action(view, cx, Editor::display_cursor_names);
387 register_action(view, cx, Editor::unique_lines_case_insensitive);
388 register_action(view, cx, Editor::unique_lines_case_sensitive);
389 register_action(view, cx, Editor::accept_partial_inline_completion);
390 register_action(view, cx, Editor::accept_inline_completion);
391 register_action(view, cx, Editor::revert_selected_hunks);
392 register_action(view, cx, Editor::open_active_item_in_terminal)
393 }
394
395 fn register_key_listeners(&self, cx: &mut WindowContext, layout: &EditorLayout) {
396 let position_map = layout.position_map.clone();
397 cx.on_key_event({
398 let editor = self.editor.clone();
399 let text_hitbox = layout.text_hitbox.clone();
400 move |event: &ModifiersChangedEvent, phase, cx| {
401 if phase != DispatchPhase::Bubble {
402 return;
403 }
404
405 editor.update(cx, |editor, cx| {
406 Self::modifiers_changed(editor, event, &position_map, &text_hitbox, cx)
407 })
408 }
409 });
410 }
411
412 fn modifiers_changed(
413 editor: &mut Editor,
414 event: &ModifiersChangedEvent,
415 position_map: &PositionMap,
416 text_hitbox: &Hitbox,
417 cx: &mut ViewContext<Editor>,
418 ) {
419 let mouse_position = cx.mouse_position();
420 if !text_hitbox.is_hovered(cx) {
421 return;
422 }
423
424 editor.update_hovered_link(
425 position_map.point_for_position(text_hitbox.bounds, mouse_position),
426 &position_map.snapshot,
427 event.modifiers,
428 cx,
429 )
430 }
431
432 fn mouse_left_down(
433 editor: &mut Editor,
434 event: &MouseDownEvent,
435 hovered_hunk: Option<&HunkToExpand>,
436 position_map: &PositionMap,
437 text_hitbox: &Hitbox,
438 gutter_hitbox: &Hitbox,
439 cx: &mut ViewContext<Editor>,
440 ) {
441 if cx.default_prevented() {
442 return;
443 }
444
445 let mut click_count = event.click_count;
446 let mut modifiers = event.modifiers;
447
448 if let Some(hovered_hunk) = hovered_hunk {
449 editor.expand_diff_hunk(None, hovered_hunk, cx);
450 cx.notify();
451 return;
452 } else if gutter_hitbox.is_hovered(cx) {
453 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
454 } else if !text_hitbox.is_hovered(cx) {
455 return;
456 }
457
458 if click_count == 2 && !editor.buffer().read(cx).is_singleton() {
459 match EditorSettings::get_global(cx).double_click_in_multibuffer {
460 DoubleClickInMultibuffer::Select => {
461 // do nothing special on double click, all selection logic is below
462 }
463 DoubleClickInMultibuffer::Open => {
464 if modifiers.alt {
465 // if double click is made with alt, pretend it's a regular double click without opening and alt,
466 // and run the selection logic.
467 modifiers.alt = false;
468 } else {
469 // if double click is made without alt, open the corresponding excerp
470 editor.open_excerpts(&OpenExcerpts, cx);
471 return;
472 }
473 }
474 }
475 }
476
477 let point_for_position =
478 position_map.point_for_position(text_hitbox.bounds, event.position);
479 let position = point_for_position.previous_valid;
480 if modifiers.shift && modifiers.alt {
481 editor.select(
482 SelectPhase::BeginColumnar {
483 position,
484 reset: false,
485 goal_column: point_for_position.exact_unclipped.column(),
486 },
487 cx,
488 );
489 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
490 {
491 editor.select(
492 SelectPhase::Extend {
493 position,
494 click_count,
495 },
496 cx,
497 );
498 } else {
499 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
500 let multi_cursor_modifier = match multi_cursor_setting {
501 MultiCursorModifier::Alt => modifiers.alt,
502 MultiCursorModifier::CmdOrCtrl => modifiers.secondary(),
503 };
504 editor.select(
505 SelectPhase::Begin {
506 position,
507 add: multi_cursor_modifier,
508 click_count,
509 },
510 cx,
511 );
512 }
513
514 cx.stop_propagation();
515 }
516
517 fn mouse_right_down(
518 editor: &mut Editor,
519 event: &MouseDownEvent,
520 position_map: &PositionMap,
521 text_hitbox: &Hitbox,
522 cx: &mut ViewContext<Editor>,
523 ) {
524 if !text_hitbox.is_hovered(cx) {
525 return;
526 }
527 let point_for_position =
528 position_map.point_for_position(text_hitbox.bounds, event.position);
529 mouse_context_menu::deploy_context_menu(
530 editor,
531 event.position,
532 point_for_position.previous_valid,
533 cx,
534 );
535 cx.stop_propagation();
536 }
537
538 fn mouse_middle_down(
539 editor: &mut Editor,
540 event: &MouseDownEvent,
541 position_map: &PositionMap,
542 text_hitbox: &Hitbox,
543 cx: &mut ViewContext<Editor>,
544 ) {
545 if !text_hitbox.is_hovered(cx) || cx.default_prevented() {
546 return;
547 }
548
549 let point_for_position =
550 position_map.point_for_position(text_hitbox.bounds, event.position);
551 let position = point_for_position.previous_valid;
552
553 editor.select(
554 SelectPhase::BeginColumnar {
555 position,
556 reset: true,
557 goal_column: point_for_position.exact_unclipped.column(),
558 },
559 cx,
560 );
561 }
562
563 fn mouse_up(
564 editor: &mut Editor,
565 event: &MouseUpEvent,
566 position_map: &PositionMap,
567 text_hitbox: &Hitbox,
568 cx: &mut ViewContext<Editor>,
569 ) {
570 let end_selection = editor.has_pending_selection();
571 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
572
573 if end_selection {
574 editor.select(SelectPhase::End, cx);
575 }
576
577 let multi_cursor_setting = EditorSettings::get_global(cx).multi_cursor_modifier;
578 let multi_cursor_modifier = match multi_cursor_setting {
579 MultiCursorModifier::Alt => event.modifiers.secondary(),
580 MultiCursorModifier::CmdOrCtrl => event.modifiers.alt,
581 };
582
583 if !pending_nonempty_selections && multi_cursor_modifier && text_hitbox.is_hovered(cx) {
584 let point = position_map.point_for_position(text_hitbox.bounds, event.position);
585 editor.handle_click_hovered_link(point, event.modifiers, cx);
586
587 cx.stop_propagation();
588 } else if end_selection {
589 cx.stop_propagation();
590 } else if cfg!(target_os = "linux") && event.button == MouseButton::Middle {
591 if !text_hitbox.is_hovered(cx) || editor.read_only(cx) {
592 return;
593 }
594
595 #[cfg(target_os = "linux")]
596 if let Some(item) = cx.read_from_clipboard() {
597 let point_for_position =
598 position_map.point_for_position(text_hitbox.bounds, event.position);
599 let position = point_for_position.previous_valid;
600
601 editor.select(
602 SelectPhase::Begin {
603 position,
604 add: false,
605 click_count: 1,
606 },
607 cx,
608 );
609 editor.insert(item.text(), cx);
610 }
611 cx.stop_propagation()
612 }
613 }
614
615 fn mouse_dragged(
616 editor: &mut Editor,
617 event: &MouseMoveEvent,
618 position_map: &PositionMap,
619 text_bounds: Bounds<Pixels>,
620 cx: &mut ViewContext<Editor>,
621 ) {
622 if !editor.has_pending_selection() {
623 return;
624 }
625
626 let point_for_position = position_map.point_for_position(text_bounds, event.position);
627 let mut scroll_delta = gpui::Point::<f32>::default();
628 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
629 let top = text_bounds.origin.y + vertical_margin;
630 let bottom = text_bounds.lower_left().y - vertical_margin;
631 if event.position.y < top {
632 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
633 }
634 if event.position.y > bottom {
635 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
636 }
637
638 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
639 let left = text_bounds.origin.x + horizontal_margin;
640 let right = text_bounds.upper_right().x - horizontal_margin;
641 if event.position.x < left {
642 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
643 }
644 if event.position.x > right {
645 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
646 }
647
648 editor.select(
649 SelectPhase::Update {
650 position: point_for_position.previous_valid,
651 goal_column: point_for_position.exact_unclipped.column(),
652 scroll_delta,
653 },
654 cx,
655 );
656 }
657
658 fn mouse_moved(
659 editor: &mut Editor,
660 event: &MouseMoveEvent,
661 position_map: &PositionMap,
662 text_hitbox: &Hitbox,
663 gutter_hitbox: &Hitbox,
664 cx: &mut ViewContext<Editor>,
665 ) {
666 let modifiers = event.modifiers;
667 let gutter_hovered = gutter_hitbox.is_hovered(cx);
668 editor.set_gutter_hovered(gutter_hovered, cx);
669
670 // Don't trigger hover popover if mouse is hovering over context menu
671 if text_hitbox.is_hovered(cx) {
672 let point_for_position =
673 position_map.point_for_position(text_hitbox.bounds, event.position);
674
675 editor.update_hovered_link(point_for_position, &position_map.snapshot, modifiers, cx);
676
677 if let Some(point) = point_for_position.as_valid() {
678 let anchor = position_map
679 .snapshot
680 .buffer_snapshot
681 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
682 hover_at(editor, Some(anchor), cx);
683 Self::update_visible_cursor(editor, point, position_map, cx);
684 } else {
685 hover_at(editor, None, cx);
686 }
687 } else {
688 editor.hide_hovered_link(cx);
689 hover_at(editor, None, cx);
690 if gutter_hovered {
691 cx.stop_propagation();
692 }
693 }
694 }
695
696 fn update_visible_cursor(
697 editor: &mut Editor,
698 point: DisplayPoint,
699 position_map: &PositionMap,
700 cx: &mut ViewContext<Editor>,
701 ) {
702 let snapshot = &position_map.snapshot;
703 let Some(hub) = editor.collaboration_hub() else {
704 return;
705 };
706 let range = DisplayPoint::new(point.row(), point.column().saturating_sub(1))
707 ..DisplayPoint::new(
708 point.row(),
709 (point.column() + 1).min(snapshot.line_len(point.row())),
710 );
711
712 let range = snapshot
713 .buffer_snapshot
714 .anchor_at(range.start.to_point(&snapshot.display_snapshot), Bias::Left)
715 ..snapshot
716 .buffer_snapshot
717 .anchor_at(range.end.to_point(&snapshot.display_snapshot), Bias::Right);
718
719 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
720 return;
721 };
722 let key = crate::HoveredCursor {
723 replica_id: selection.replica_id,
724 selection_id: selection.selection.id,
725 };
726 editor.hovered_cursors.insert(
727 key.clone(),
728 cx.spawn(|editor, mut cx| async move {
729 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
730 editor
731 .update(&mut cx, |editor, cx| {
732 editor.hovered_cursors.remove(&key);
733 cx.notify();
734 })
735 .ok();
736 }),
737 );
738 cx.notify()
739 }
740
741 fn layout_selections(
742 &self,
743 start_anchor: Anchor,
744 end_anchor: Anchor,
745 snapshot: &EditorSnapshot,
746 start_row: DisplayRow,
747 end_row: DisplayRow,
748 cx: &mut WindowContext,
749 ) -> (
750 Vec<(PlayerColor, Vec<SelectionLayout>)>,
751 BTreeMap<DisplayRow, bool>,
752 Option<DisplayPoint>,
753 ) {
754 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
755 let mut active_rows = BTreeMap::new();
756 let mut newest_selection_head = None;
757 let editor = self.editor.read(cx);
758
759 if editor.show_local_selections {
760 let mut local_selections: Vec<Selection<Point>> = editor
761 .selections
762 .disjoint_in_range(start_anchor..end_anchor, cx);
763 local_selections.extend(editor.selections.pending(cx));
764 let mut layouts = Vec::new();
765 let newest = editor.selections.newest(cx);
766 for selection in local_selections.drain(..) {
767 let is_empty = selection.start == selection.end;
768 let is_newest = selection == newest;
769
770 let layout = SelectionLayout::new(
771 selection,
772 editor.selections.line_mode,
773 editor.cursor_shape,
774 &snapshot.display_snapshot,
775 is_newest,
776 editor.leader_peer_id.is_none(),
777 None,
778 );
779 if is_newest {
780 newest_selection_head = Some(layout.head);
781 }
782
783 for row in cmp::max(layout.active_rows.start.0, start_row.0)
784 ..=cmp::min(layout.active_rows.end.0, end_row.0)
785 {
786 let contains_non_empty_selection =
787 active_rows.entry(DisplayRow(row)).or_insert(!is_empty);
788 *contains_non_empty_selection |= !is_empty;
789 }
790 layouts.push(layout);
791 }
792
793 let player = if editor.read_only(cx) {
794 cx.theme().players().read_only()
795 } else {
796 self.style.local_player
797 };
798
799 selections.push((player, layouts));
800 }
801
802 if let Some(collaboration_hub) = &editor.collaboration_hub {
803 // When following someone, render the local selections in their color.
804 if let Some(leader_id) = editor.leader_peer_id {
805 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id) {
806 if let Some(participant_index) = collaboration_hub
807 .user_participant_indices(cx)
808 .get(&collaborator.user_id)
809 {
810 if let Some((local_selection_style, _)) = selections.first_mut() {
811 *local_selection_style = cx
812 .theme()
813 .players()
814 .color_for_participant(participant_index.0);
815 }
816 }
817 }
818 }
819
820 let mut remote_selections = HashMap::default();
821 for selection in snapshot.remote_selections_in_range(
822 &(start_anchor..end_anchor),
823 collaboration_hub.as_ref(),
824 cx,
825 ) {
826 let selection_style = Self::get_participant_color(selection.participant_index, cx);
827
828 // Don't re-render the leader's selections, since the local selections
829 // match theirs.
830 if Some(selection.peer_id) == editor.leader_peer_id {
831 continue;
832 }
833 let key = HoveredCursor {
834 replica_id: selection.replica_id,
835 selection_id: selection.selection.id,
836 };
837
838 let is_shown =
839 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
840
841 remote_selections
842 .entry(selection.replica_id)
843 .or_insert((selection_style, Vec::new()))
844 .1
845 .push(SelectionLayout::new(
846 selection.selection,
847 selection.line_mode,
848 selection.cursor_shape,
849 &snapshot.display_snapshot,
850 false,
851 false,
852 if is_shown { selection.user_name } else { None },
853 ));
854 }
855
856 selections.extend(remote_selections.into_values());
857 }
858 (selections, active_rows, newest_selection_head)
859 }
860
861 fn collect_cursors(
862 &self,
863 snapshot: &EditorSnapshot,
864 cx: &mut WindowContext,
865 ) -> Vec<(DisplayPoint, Hsla)> {
866 let editor = self.editor.read(cx);
867 let mut cursors = Vec::new();
868 let mut skip_local = false;
869 let mut add_cursor = |anchor: Anchor, color| {
870 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
871 };
872 // Remote cursors
873 if let Some(collaboration_hub) = &editor.collaboration_hub {
874 for remote_selection in snapshot.remote_selections_in_range(
875 &(Anchor::min()..Anchor::max()),
876 collaboration_hub.deref(),
877 cx,
878 ) {
879 let color = Self::get_participant_color(remote_selection.participant_index, cx);
880 add_cursor(remote_selection.selection.head(), color.cursor);
881 if Some(remote_selection.peer_id) == editor.leader_peer_id {
882 skip_local = true;
883 }
884 }
885 }
886 // Local cursors
887 if !skip_local {
888 let color = cx.theme().players().local().cursor;
889 editor.selections.disjoint.iter().for_each(|selection| {
890 add_cursor(selection.head(), color);
891 });
892 if let Some(ref selection) = editor.selections.pending_anchor() {
893 add_cursor(selection.head(), color);
894 }
895 }
896 cursors
897 }
898
899 #[allow(clippy::too_many_arguments)]
900 fn layout_visible_cursors(
901 &self,
902 snapshot: &EditorSnapshot,
903 selections: &[(PlayerColor, Vec<SelectionLayout>)],
904 visible_display_row_range: Range<DisplayRow>,
905 line_layouts: &[LineWithInvisibles],
906 text_hitbox: &Hitbox,
907 content_origin: gpui::Point<Pixels>,
908 scroll_position: gpui::Point<f32>,
909 scroll_pixel_position: gpui::Point<Pixels>,
910 line_height: Pixels,
911 em_width: Pixels,
912 autoscroll_containing_element: bool,
913 cx: &mut WindowContext,
914 ) -> Vec<CursorLayout> {
915 let mut autoscroll_bounds = None;
916 let cursor_layouts = self.editor.update(cx, |editor, cx| {
917 let mut cursors = Vec::new();
918 for (player_color, selections) in selections {
919 for selection in selections {
920 let cursor_position = selection.head;
921
922 let in_range = visible_display_row_range.contains(&cursor_position.row());
923 if (selection.is_local && !editor.show_local_cursors(cx)) || !in_range {
924 continue;
925 }
926
927 let cursor_row_layout = &line_layouts
928 [cursor_position.row().minus(visible_display_row_range.start) as usize];
929 let cursor_column = cursor_position.column() as usize;
930
931 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
932 let mut block_width =
933 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
934 if block_width == Pixels::ZERO {
935 block_width = em_width;
936 }
937 let block_text = if let CursorShape::Block = selection.cursor_shape {
938 snapshot.display_chars_at(cursor_position).next().and_then(
939 |(character, _)| {
940 let text = if character == '\n' {
941 SharedString::from(" ")
942 } else {
943 SharedString::from(character.to_string())
944 };
945 let len = text.len();
946
947 let font = cursor_row_layout
948 .font_id_for_index(cursor_column)
949 .and_then(|cursor_font_id| {
950 cx.text_system().get_font_for_id(cursor_font_id)
951 })
952 .unwrap_or(self.style.text.font());
953
954 cx.text_system()
955 .shape_line(
956 text,
957 cursor_row_layout.font_size,
958 &[TextRun {
959 len,
960 font,
961 color: self.style.background,
962 background_color: None,
963 strikethrough: None,
964 underline: None,
965 }],
966 )
967 .log_err()
968 },
969 )
970 } else {
971 None
972 };
973
974 let x = cursor_character_x - scroll_pixel_position.x;
975 let y = (cursor_position.row().as_f32()
976 - scroll_pixel_position.y / line_height)
977 * line_height;
978 if selection.is_newest {
979 editor.pixel_position_of_newest_cursor = Some(point(
980 text_hitbox.origin.x + x + block_width / 2.,
981 text_hitbox.origin.y + y + line_height / 2.,
982 ));
983
984 if autoscroll_containing_element {
985 let top = text_hitbox.origin.y
986 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
987 * line_height;
988 let left = text_hitbox.origin.x
989 + (cursor_position.column() as f32 - scroll_position.x - 3.)
990 .max(0.)
991 * em_width;
992
993 let bottom = text_hitbox.origin.y
994 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
995 * line_height;
996 let right = text_hitbox.origin.x
997 + (cursor_position.column() as f32 - scroll_position.x + 4.)
998 * em_width;
999
1000 autoscroll_bounds =
1001 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1002 }
1003 }
1004
1005 let mut cursor = CursorLayout {
1006 color: player_color.cursor,
1007 block_width,
1008 origin: point(x, y),
1009 line_height,
1010 shape: selection.cursor_shape,
1011 block_text,
1012 cursor_name: None,
1013 };
1014 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1015 string: name,
1016 color: self.style.background,
1017 is_top_row: cursor_position.row().0 == 0,
1018 });
1019 cursor.layout(content_origin, cursor_name, cx);
1020 cursors.push(cursor);
1021 }
1022 }
1023 cursors
1024 });
1025
1026 if let Some(bounds) = autoscroll_bounds {
1027 cx.request_autoscroll(bounds);
1028 }
1029
1030 cursor_layouts
1031 }
1032
1033 fn layout_scrollbar(
1034 &self,
1035 snapshot: &EditorSnapshot,
1036 bounds: Bounds<Pixels>,
1037 scroll_position: gpui::Point<f32>,
1038 rows_per_page: f32,
1039 non_visible_cursors: bool,
1040 cx: &mut WindowContext,
1041 ) -> Option<ScrollbarLayout> {
1042 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1043 let show_scrollbars = match scrollbar_settings.show {
1044 ShowScrollbar::Auto => {
1045 let editor = self.editor.read(cx);
1046 let is_singleton = editor.is_singleton(cx);
1047 // Git
1048 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
1049 ||
1050 // Buffer Search Results
1051 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1052 ||
1053 // Selected Symbol Occurrences
1054 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1055 ||
1056 // Diagnostics
1057 (is_singleton && scrollbar_settings.diagnostics && snapshot.buffer_snapshot.has_diagnostics())
1058 ||
1059 // Cursors out of sight
1060 non_visible_cursors
1061 ||
1062 // Scrollmanager
1063 editor.scroll_manager.scrollbars_visible()
1064 }
1065 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1066 ShowScrollbar::Always => true,
1067 ShowScrollbar::Never => false,
1068 };
1069 if snapshot.mode != EditorMode::Full {
1070 return None;
1071 }
1072
1073 let visible_row_range = scroll_position.y..scroll_position.y + rows_per_page;
1074
1075 // If a drag took place after we started dragging the scrollbar,
1076 // cancel the scrollbar drag.
1077 if cx.has_active_drag() {
1078 self.editor.update(cx, |editor, cx| {
1079 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
1080 });
1081 }
1082
1083 let track_bounds = Bounds::from_corners(
1084 point(self.scrollbar_left(&bounds), bounds.origin.y),
1085 point(bounds.lower_right().x, bounds.lower_left().y),
1086 );
1087
1088 let height = bounds.size.height;
1089 let total_rows = snapshot.max_point().row().as_f32() + rows_per_page;
1090 let px_per_row = height / total_rows;
1091 let thumb_height = (rows_per_page * px_per_row).max(ScrollbarLayout::MIN_THUMB_HEIGHT);
1092 let row_height = (height - thumb_height) / snapshot.max_point().row().as_f32();
1093
1094 Some(ScrollbarLayout {
1095 hitbox: cx.insert_hitbox(track_bounds, false),
1096 visible_row_range,
1097 row_height,
1098 visible: show_scrollbars,
1099 thumb_height,
1100 })
1101 }
1102
1103 #[allow(clippy::too_many_arguments)]
1104 fn prepaint_gutter_fold_toggles(
1105 &self,
1106 toggles: &mut [Option<AnyElement>],
1107 line_height: Pixels,
1108 gutter_dimensions: &GutterDimensions,
1109 gutter_settings: crate::editor_settings::Gutter,
1110 scroll_pixel_position: gpui::Point<Pixels>,
1111 gutter_hitbox: &Hitbox,
1112 cx: &mut WindowContext,
1113 ) {
1114 for (ix, fold_indicator) in toggles.iter_mut().enumerate() {
1115 if let Some(fold_indicator) = fold_indicator {
1116 debug_assert!(gutter_settings.folds);
1117 let available_space = size(
1118 AvailableSpace::MinContent,
1119 AvailableSpace::Definite(line_height * 0.55),
1120 );
1121 let fold_indicator_size = fold_indicator.layout_as_root(available_space, cx);
1122
1123 let position = point(
1124 gutter_dimensions.width - gutter_dimensions.right_padding,
1125 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1126 );
1127 let centering_offset = point(
1128 (gutter_dimensions.fold_area_width() - fold_indicator_size.width) / 2.,
1129 (line_height - fold_indicator_size.height) / 2.,
1130 );
1131 let origin = gutter_hitbox.origin + position + centering_offset;
1132 fold_indicator.prepaint_as_root(origin, available_space, cx);
1133 }
1134 }
1135 }
1136
1137 #[allow(clippy::too_many_arguments)]
1138 fn prepaint_flap_trailers(
1139 &self,
1140 trailers: Vec<Option<AnyElement>>,
1141 lines: &[LineWithInvisibles],
1142 line_height: Pixels,
1143 content_origin: gpui::Point<Pixels>,
1144 scroll_pixel_position: gpui::Point<Pixels>,
1145 em_width: Pixels,
1146 cx: &mut WindowContext,
1147 ) -> Vec<Option<FlapTrailerLayout>> {
1148 trailers
1149 .into_iter()
1150 .enumerate()
1151 .map(|(ix, element)| {
1152 let mut element = element?;
1153 let available_space = size(
1154 AvailableSpace::MinContent,
1155 AvailableSpace::Definite(line_height),
1156 );
1157 let size = element.layout_as_root(available_space, cx);
1158
1159 let line = &lines[ix];
1160 let padding = if line.width == Pixels::ZERO {
1161 Pixels::ZERO
1162 } else {
1163 4. * em_width
1164 };
1165 let position = point(
1166 scroll_pixel_position.x + line.width + padding,
1167 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1168 );
1169 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1170 let origin = content_origin + position + centering_offset;
1171 element.prepaint_as_root(origin, available_space, cx);
1172 Some(FlapTrailerLayout {
1173 element,
1174 bounds: Bounds::new(origin, size),
1175 })
1176 })
1177 .collect()
1178 }
1179
1180 // Folds contained in a hunk are ignored apart from shrinking visual size
1181 // If a fold contains any hunks then that fold line is marked as modified
1182 fn layout_git_gutters(
1183 &self,
1184 line_height: Pixels,
1185 gutter_hitbox: &Hitbox,
1186 display_rows: Range<DisplayRow>,
1187 snapshot: &EditorSnapshot,
1188 cx: &mut WindowContext,
1189 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
1190 let buffer_snapshot = &snapshot.buffer_snapshot;
1191
1192 let buffer_start_row = MultiBufferRow(
1193 DisplayPoint::new(display_rows.start, 0)
1194 .to_point(snapshot)
1195 .row,
1196 );
1197 let buffer_end_row = MultiBufferRow(
1198 DisplayPoint::new(display_rows.end, 0)
1199 .to_point(snapshot)
1200 .row,
1201 );
1202
1203 let expanded_hunk_display_rows = self.editor.update(cx, |editor, _| {
1204 editor
1205 .expanded_hunks
1206 .hunks(false)
1207 .map(|expanded_hunk| {
1208 let start_row = expanded_hunk
1209 .hunk_range
1210 .start
1211 .to_display_point(snapshot)
1212 .row();
1213 let end_row = expanded_hunk
1214 .hunk_range
1215 .end
1216 .to_display_point(snapshot)
1217 .row();
1218 (start_row, end_row)
1219 })
1220 .collect::<HashMap<_, _>>()
1221 });
1222
1223 let git_gutter_setting = ProjectSettings::get_global(cx)
1224 .git
1225 .git_gutter
1226 .unwrap_or_default();
1227 buffer_snapshot
1228 .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
1229 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
1230 .dedup()
1231 .map(|hunk| match git_gutter_setting {
1232 GitGutterSetting::TrackedFiles => {
1233 let hitbox = if let DisplayDiffHunk::Unfolded {
1234 display_row_range, ..
1235 } = &hunk
1236 {
1237 let was_expanded = expanded_hunk_display_rows
1238 .get(&display_row_range.start)
1239 .map(|expanded_end_row| expanded_end_row == &display_row_range.end)
1240 .unwrap_or(false);
1241 if was_expanded {
1242 None
1243 } else {
1244 let hunk_bounds = Self::diff_hunk_bounds(
1245 &snapshot,
1246 line_height,
1247 gutter_hitbox.bounds,
1248 &hunk,
1249 );
1250 Some(cx.insert_hitbox(hunk_bounds, true))
1251 }
1252 } else {
1253 None
1254 };
1255 (hunk, hitbox)
1256 }
1257 GitGutterSetting::Hide => (hunk, None),
1258 })
1259 .collect()
1260 }
1261
1262 #[allow(clippy::too_many_arguments)]
1263 fn layout_inline_blame(
1264 &self,
1265 display_row: DisplayRow,
1266 display_snapshot: &DisplaySnapshot,
1267 line_layout: &LineWithInvisibles,
1268 flap_trailer: Option<&FlapTrailerLayout>,
1269 em_width: Pixels,
1270 content_origin: gpui::Point<Pixels>,
1271 scroll_pixel_position: gpui::Point<Pixels>,
1272 line_height: Pixels,
1273 cx: &mut WindowContext,
1274 ) -> Option<AnyElement> {
1275 if !self
1276 .editor
1277 .update(cx, |editor, cx| editor.render_git_blame_inline(cx))
1278 {
1279 return None;
1280 }
1281
1282 let workspace = self
1283 .editor
1284 .read(cx)
1285 .workspace
1286 .as_ref()
1287 .map(|(w, _)| w.clone());
1288
1289 let display_point = DisplayPoint::new(display_row, 0);
1290 let buffer_row = MultiBufferRow(display_point.to_point(display_snapshot).row);
1291
1292 let blame = self.editor.read(cx).blame.clone()?;
1293 let blame_entry = blame
1294 .update(cx, |blame, cx| {
1295 blame.blame_for_rows([Some(buffer_row)], cx).next()
1296 })
1297 .flatten()?;
1298
1299 let mut element =
1300 render_inline_blame_entry(&blame, blame_entry, &self.style, workspace, cx);
1301
1302 let start_y = content_origin.y
1303 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
1304
1305 let start_x = {
1306 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
1307
1308 let line_end = if let Some(flap_trailer) = flap_trailer {
1309 flap_trailer.bounds.right()
1310 } else {
1311 content_origin.x - scroll_pixel_position.x + line_layout.width
1312 };
1313 let padded_line_end = line_end + em_width * INLINE_BLAME_PADDING_EM_WIDTHS;
1314
1315 let min_column_in_pixels = ProjectSettings::get_global(cx)
1316 .git
1317 .inline_blame
1318 .and_then(|settings| settings.min_column)
1319 .map(|col| self.column_pixels(col as usize, cx))
1320 .unwrap_or(px(0.));
1321 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
1322
1323 cmp::max(padded_line_end, min_start)
1324 };
1325
1326 let absolute_offset = point(start_x, start_y);
1327 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1328
1329 element.prepaint_as_root(absolute_offset, available_space, cx);
1330
1331 Some(element)
1332 }
1333
1334 #[allow(clippy::too_many_arguments)]
1335 fn layout_blame_entries(
1336 &self,
1337 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1338 em_width: Pixels,
1339 scroll_position: gpui::Point<f32>,
1340 line_height: Pixels,
1341 gutter_hitbox: &Hitbox,
1342 max_width: Option<Pixels>,
1343 cx: &mut WindowContext,
1344 ) -> Option<Vec<AnyElement>> {
1345 if !self
1346 .editor
1347 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
1348 {
1349 return None;
1350 }
1351
1352 let blame = self.editor.read(cx).blame.clone()?;
1353 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
1354 blame.blame_for_rows(buffer_rows, cx).collect()
1355 });
1356
1357 let width = if let Some(max_width) = max_width {
1358 AvailableSpace::Definite(max_width)
1359 } else {
1360 AvailableSpace::MaxContent
1361 };
1362 let scroll_top = scroll_position.y * line_height;
1363 let start_x = em_width * 1;
1364
1365 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
1366
1367 let shaped_lines = blamed_rows
1368 .into_iter()
1369 .enumerate()
1370 .flat_map(|(ix, blame_entry)| {
1371 if let Some(blame_entry) = blame_entry {
1372 let mut element = render_blame_entry(
1373 ix,
1374 &blame,
1375 blame_entry,
1376 &self.style,
1377 &mut last_used_color,
1378 self.editor.clone(),
1379 cx,
1380 );
1381
1382 let start_y = ix as f32 * line_height - (scroll_top % line_height);
1383 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
1384
1385 element.prepaint_as_root(
1386 absolute_offset,
1387 size(width, AvailableSpace::MinContent),
1388 cx,
1389 );
1390
1391 Some(element)
1392 } else {
1393 None
1394 }
1395 })
1396 .collect();
1397
1398 Some(shaped_lines)
1399 }
1400
1401 #[allow(clippy::too_many_arguments)]
1402 fn layout_indent_guides(
1403 &self,
1404 content_origin: gpui::Point<Pixels>,
1405 text_origin: gpui::Point<Pixels>,
1406 visible_buffer_range: Range<MultiBufferRow>,
1407 scroll_pixel_position: gpui::Point<Pixels>,
1408 line_height: Pixels,
1409 snapshot: &DisplaySnapshot,
1410 cx: &mut WindowContext,
1411 ) -> Option<Vec<IndentGuideLayout>> {
1412 let indent_guides = self.editor.update(cx, |editor, cx| {
1413 editor.indent_guides(visible_buffer_range, snapshot, cx)
1414 })?;
1415
1416 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
1417 editor
1418 .find_active_indent_guide_indices(&indent_guides, snapshot, cx)
1419 .unwrap_or_default()
1420 });
1421
1422 Some(
1423 indent_guides
1424 .into_iter()
1425 .enumerate()
1426 .filter_map(|(i, indent_guide)| {
1427 let single_indent_width =
1428 self.column_pixels(indent_guide.tab_size as usize, cx);
1429 let total_width = single_indent_width * indent_guide.depth as f32;
1430 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
1431 if start_x >= text_origin.x {
1432 let (offset_y, length) = Self::calculate_indent_guide_bounds(
1433 indent_guide.multibuffer_row_range.clone(),
1434 line_height,
1435 snapshot,
1436 );
1437
1438 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
1439
1440 Some(IndentGuideLayout {
1441 origin: point(start_x, start_y),
1442 length,
1443 single_indent_width,
1444 depth: indent_guide.depth,
1445 active: active_indent_guide_indices.contains(&i),
1446 settings: indent_guide.settings,
1447 })
1448 } else {
1449 None
1450 }
1451 })
1452 .collect(),
1453 )
1454 }
1455
1456 fn calculate_indent_guide_bounds(
1457 row_range: Range<MultiBufferRow>,
1458 line_height: Pixels,
1459 snapshot: &DisplaySnapshot,
1460 ) -> (gpui::Pixels, gpui::Pixels) {
1461 let start_point = Point::new(row_range.start.0, 0);
1462 let end_point = Point::new(row_range.end.0, 0);
1463
1464 let row_range = start_point.to_display_point(snapshot).row()
1465 ..end_point.to_display_point(snapshot).row();
1466
1467 let mut prev_line = start_point;
1468 prev_line.row = prev_line.row.saturating_sub(1);
1469 let prev_line = prev_line.to_display_point(snapshot).row();
1470
1471 let mut cons_line = end_point;
1472 cons_line.row += 1;
1473 let cons_line = cons_line.to_display_point(snapshot).row();
1474
1475 let mut offset_y = row_range.start.0 as f32 * line_height;
1476 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
1477
1478 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
1479 if row_range.end == cons_line {
1480 length += line_height;
1481 }
1482
1483 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
1484 // we want to extend the indent guide to the start of the block.
1485 let mut block_height = 0;
1486 let mut block_offset = 0;
1487 let mut found_excerpt_header = false;
1488 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
1489 if matches!(block, TransformBlock::ExcerptHeader { .. }) {
1490 found_excerpt_header = true;
1491 break;
1492 }
1493 block_offset += block.height();
1494 block_height += block.height();
1495 }
1496 if !found_excerpt_header {
1497 offset_y -= block_offset as f32 * line_height;
1498 length += block_height as f32 * line_height;
1499 }
1500
1501 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
1502 // we want to ensure that the indent guide stops before the excerpt header.
1503 let mut block_height = 0;
1504 let mut found_excerpt_header = false;
1505 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
1506 if matches!(block, TransformBlock::ExcerptHeader { .. }) {
1507 found_excerpt_header = true;
1508 }
1509 block_height += block.height();
1510 }
1511 if found_excerpt_header {
1512 length -= block_height as f32 * line_height;
1513 }
1514
1515 (offset_y, length)
1516 }
1517
1518 fn layout_run_indicators(
1519 &self,
1520 line_height: Pixels,
1521 scroll_pixel_position: gpui::Point<Pixels>,
1522 gutter_dimensions: &GutterDimensions,
1523 gutter_hitbox: &Hitbox,
1524 snapshot: &EditorSnapshot,
1525 cx: &mut WindowContext,
1526 ) -> Vec<AnyElement> {
1527 self.editor.update(cx, |editor, cx| {
1528 let active_task_indicator_row =
1529 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1530 deployed_from_indicator,
1531 actions,
1532 ..
1533 })) = editor.context_menu.read().as_ref()
1534 {
1535 actions
1536 .tasks
1537 .as_ref()
1538 .map(|tasks| tasks.position.to_display_point(snapshot).row())
1539 .or_else(|| *deployed_from_indicator)
1540 } else {
1541 None
1542 };
1543 editor
1544 .tasks
1545 .iter()
1546 .filter_map(|(_, tasks)| {
1547 let multibuffer_point = tasks.offset.0.to_point(&snapshot.buffer_snapshot);
1548 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
1549 if snapshot.is_line_folded(multibuffer_row) {
1550 return None;
1551 }
1552 let display_row = multibuffer_point.to_display_point(snapshot).row();
1553 let button = editor.render_run_indicator(
1554 &self.style,
1555 Some(display_row) == active_task_indicator_row,
1556 display_row,
1557 cx,
1558 );
1559
1560 let button = prepaint_gutter_button(
1561 button,
1562 display_row,
1563 line_height,
1564 gutter_dimensions,
1565 scroll_pixel_position,
1566 gutter_hitbox,
1567 cx,
1568 );
1569 Some(button)
1570 })
1571 .collect_vec()
1572 })
1573 }
1574
1575 fn layout_code_actions_indicator(
1576 &self,
1577 line_height: Pixels,
1578 newest_selection_head: DisplayPoint,
1579 scroll_pixel_position: gpui::Point<Pixels>,
1580 gutter_dimensions: &GutterDimensions,
1581 gutter_hitbox: &Hitbox,
1582 cx: &mut WindowContext,
1583 ) -> Option<AnyElement> {
1584 let mut active = false;
1585 let mut button = None;
1586 let row = newest_selection_head.row();
1587 self.editor.update(cx, |editor, cx| {
1588 if let Some(crate::ContextMenu::CodeActions(CodeActionsMenu {
1589 deployed_from_indicator,
1590 ..
1591 })) = editor.context_menu.read().as_ref()
1592 {
1593 active = deployed_from_indicator.map_or(true, |indicator_row| indicator_row == row);
1594 };
1595 button = editor.render_code_actions_indicator(&self.style, row, active, cx);
1596 });
1597
1598 let button = prepaint_gutter_button(
1599 button?,
1600 row,
1601 line_height,
1602 gutter_dimensions,
1603 scroll_pixel_position,
1604 gutter_hitbox,
1605 cx,
1606 );
1607
1608 Some(button)
1609 }
1610
1611 fn get_participant_color(
1612 participant_index: Option<ParticipantIndex>,
1613 cx: &WindowContext,
1614 ) -> PlayerColor {
1615 if let Some(index) = participant_index {
1616 cx.theme().players().color_for_participant(index.0)
1617 } else {
1618 cx.theme().players().absent()
1619 }
1620 }
1621
1622 fn calculate_relative_line_numbers(
1623 &self,
1624 snapshot: &EditorSnapshot,
1625 rows: &Range<DisplayRow>,
1626 relative_to: Option<DisplayRow>,
1627 ) -> HashMap<DisplayRow, DisplayRowDelta> {
1628 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
1629 let Some(relative_to) = relative_to else {
1630 return relative_rows;
1631 };
1632
1633 let start = rows.start.min(relative_to);
1634 let end = rows.end.max(relative_to);
1635
1636 let buffer_rows = snapshot
1637 .buffer_rows(start)
1638 .take(1 + end.minus(start) as usize)
1639 .collect::<Vec<_>>();
1640
1641 let head_idx = relative_to.minus(start);
1642 let mut delta = 1;
1643 let mut i = head_idx + 1;
1644 while i < buffer_rows.len() as u32 {
1645 if buffer_rows[i as usize].is_some() {
1646 if rows.contains(&DisplayRow(i + start.0)) {
1647 relative_rows.insert(DisplayRow(i + start.0), delta);
1648 }
1649 delta += 1;
1650 }
1651 i += 1;
1652 }
1653 delta = 1;
1654 i = head_idx.min(buffer_rows.len() as u32 - 1);
1655 while i > 0 && buffer_rows[i as usize].is_none() {
1656 i -= 1;
1657 }
1658
1659 while i > 0 {
1660 i -= 1;
1661 if buffer_rows[i as usize].is_some() {
1662 if rows.contains(&DisplayRow(i + start.0)) {
1663 relative_rows.insert(DisplayRow(i + start.0), delta);
1664 }
1665 delta += 1;
1666 }
1667 }
1668
1669 relative_rows
1670 }
1671
1672 fn layout_line_numbers(
1673 &self,
1674 rows: Range<DisplayRow>,
1675 buffer_rows: impl Iterator<Item = Option<MultiBufferRow>>,
1676 active_rows: &BTreeMap<DisplayRow, bool>,
1677 newest_selection_head: Option<DisplayPoint>,
1678 snapshot: &EditorSnapshot,
1679 cx: &mut WindowContext,
1680 ) -> Vec<Option<ShapedLine>> {
1681 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
1682 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode == EditorMode::Full
1683 });
1684 if !include_line_numbers {
1685 return Vec::new();
1686 }
1687
1688 let editor = self.editor.read(cx);
1689 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
1690 let newest = editor.selections.newest::<Point>(cx);
1691 SelectionLayout::new(
1692 newest,
1693 editor.selections.line_mode,
1694 editor.cursor_shape,
1695 &snapshot.display_snapshot,
1696 true,
1697 true,
1698 None,
1699 )
1700 .head
1701 });
1702 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1703
1704 let is_relative = EditorSettings::get_global(cx).relative_line_numbers;
1705 let relative_to = if is_relative {
1706 Some(newest_selection_head.row())
1707 } else {
1708 None
1709 };
1710 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
1711 let mut line_number = String::new();
1712 buffer_rows
1713 .into_iter()
1714 .enumerate()
1715 .map(|(ix, multibuffer_row)| {
1716 let multibuffer_row = multibuffer_row?;
1717 let display_row = DisplayRow(rows.start.0 + ix as u32);
1718 let color = if active_rows.contains_key(&display_row) {
1719 cx.theme().colors().editor_active_line_number
1720 } else {
1721 cx.theme().colors().editor_line_number
1722 };
1723 line_number.clear();
1724 let default_number = multibuffer_row.0 + 1;
1725 let number = relative_rows
1726 .get(&DisplayRow(ix as u32 + rows.start.0))
1727 .unwrap_or(&default_number);
1728 write!(&mut line_number, "{number}").unwrap();
1729 let run = TextRun {
1730 len: line_number.len(),
1731 font: self.style.text.font(),
1732 color,
1733 background_color: None,
1734 underline: None,
1735 strikethrough: None,
1736 };
1737 let shaped_line = cx
1738 .text_system()
1739 .shape_line(line_number.clone().into(), font_size, &[run])
1740 .unwrap();
1741 Some(shaped_line)
1742 })
1743 .collect()
1744 }
1745
1746 fn layout_gutter_fold_toggles(
1747 &self,
1748 rows: Range<DisplayRow>,
1749 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
1750 active_rows: &BTreeMap<DisplayRow, bool>,
1751 snapshot: &EditorSnapshot,
1752 cx: &mut WindowContext,
1753 ) -> Vec<Option<AnyElement>> {
1754 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
1755 && snapshot.mode == EditorMode::Full
1756 && self.editor.read(cx).is_singleton(cx);
1757 if include_fold_statuses {
1758 buffer_rows
1759 .into_iter()
1760 .enumerate()
1761 .map(|(ix, row)| {
1762 if let Some(multibuffer_row) = row {
1763 let display_row = DisplayRow(rows.start.0 + ix as u32);
1764 let active = active_rows.contains_key(&display_row);
1765 snapshot.render_fold_toggle(
1766 multibuffer_row,
1767 active,
1768 self.editor.clone(),
1769 cx,
1770 )
1771 } else {
1772 None
1773 }
1774 })
1775 .collect()
1776 } else {
1777 Vec::new()
1778 }
1779 }
1780
1781 fn layout_flap_trailers(
1782 &self,
1783 buffer_rows: impl IntoIterator<Item = Option<MultiBufferRow>>,
1784 snapshot: &EditorSnapshot,
1785 cx: &mut WindowContext,
1786 ) -> Vec<Option<AnyElement>> {
1787 buffer_rows
1788 .into_iter()
1789 .map(|row| {
1790 if let Some(multibuffer_row) = row {
1791 snapshot.render_flap_trailer(multibuffer_row, cx)
1792 } else {
1793 None
1794 }
1795 })
1796 .collect()
1797 }
1798
1799 fn layout_lines(
1800 &self,
1801 rows: Range<DisplayRow>,
1802 line_number_layouts: &[Option<ShapedLine>],
1803 snapshot: &EditorSnapshot,
1804 cx: &mut WindowContext,
1805 ) -> Vec<LineWithInvisibles> {
1806 if rows.start >= rows.end {
1807 return Vec::new();
1808 }
1809
1810 // Show the placeholder when the editor is empty
1811 if snapshot.is_empty() {
1812 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1813 let placeholder_color = cx.theme().colors().text_placeholder;
1814 let placeholder_text = snapshot.placeholder_text();
1815
1816 let placeholder_lines = placeholder_text
1817 .as_ref()
1818 .map_or("", AsRef::as_ref)
1819 .split('\n')
1820 .skip(rows.start.0 as usize)
1821 .chain(iter::repeat(""))
1822 .take(rows.len());
1823 placeholder_lines
1824 .filter_map(move |line| {
1825 let run = TextRun {
1826 len: line.len(),
1827 font: self.style.text.font(),
1828 color: placeholder_color,
1829 background_color: None,
1830 underline: Default::default(),
1831 strikethrough: None,
1832 };
1833 cx.text_system()
1834 .shape_line(line.to_string().into(), font_size, &[run])
1835 .log_err()
1836 })
1837 .map(|line| LineWithInvisibles {
1838 width: line.width,
1839 len: line.len,
1840 fragments: smallvec![LineFragment::Text(line)],
1841 invisibles: Vec::new(),
1842 font_size,
1843 })
1844 .collect()
1845 } else {
1846 let chunks = snapshot.highlighted_chunks(rows.clone(), true, &self.style);
1847 LineWithInvisibles::from_chunks(
1848 chunks,
1849 &self.style.text,
1850 MAX_LINE_LEN,
1851 rows.len(),
1852 line_number_layouts,
1853 snapshot.mode,
1854 cx,
1855 )
1856 }
1857 }
1858
1859 fn prepaint_lines(
1860 &self,
1861 start_row: DisplayRow,
1862 line_layouts: &mut [LineWithInvisibles],
1863 line_height: Pixels,
1864 scroll_pixel_position: gpui::Point<Pixels>,
1865 content_origin: gpui::Point<Pixels>,
1866 cx: &mut WindowContext,
1867 ) -> SmallVec<[AnyElement; 1]> {
1868 let mut line_elements = SmallVec::new();
1869 for (ix, line) in line_layouts.iter_mut().enumerate() {
1870 let row = start_row + DisplayRow(ix as u32);
1871 line.prepaint(
1872 line_height,
1873 scroll_pixel_position,
1874 row,
1875 content_origin,
1876 &mut line_elements,
1877 cx,
1878 );
1879 }
1880 line_elements
1881 }
1882
1883 #[allow(clippy::too_many_arguments)]
1884 fn build_blocks(
1885 &self,
1886 rows: Range<DisplayRow>,
1887 snapshot: &EditorSnapshot,
1888 hitbox: &Hitbox,
1889 text_hitbox: &Hitbox,
1890 scroll_width: &mut Pixels,
1891 gutter_dimensions: &GutterDimensions,
1892 em_width: Pixels,
1893 text_x: Pixels,
1894 line_height: Pixels,
1895 line_layouts: &[LineWithInvisibles],
1896 cx: &mut WindowContext,
1897 ) -> Vec<BlockLayout> {
1898 let mut block_id = 0;
1899 let (fixed_blocks, non_fixed_blocks) = snapshot
1900 .blocks_in_range(rows.clone())
1901 .partition::<Vec<_>, _>(|(_, block)| match block {
1902 TransformBlock::ExcerptHeader { .. } => false,
1903 TransformBlock::Custom(block) => block.style() == BlockStyle::Fixed,
1904 TransformBlock::ExcerptFooter { .. } => false,
1905 });
1906
1907 let render_block = |block: &TransformBlock,
1908 available_space: Size<AvailableSpace>,
1909 block_id: usize,
1910 block_row_start: DisplayRow,
1911 cx: &mut WindowContext| {
1912 let mut element = match block {
1913 TransformBlock::Custom(block) => {
1914 let align_to = block
1915 .position()
1916 .to_point(&snapshot.buffer_snapshot)
1917 .to_display_point(snapshot);
1918 let anchor_x = text_x
1919 + if rows.contains(&align_to.row()) {
1920 line_layouts[align_to.row().minus(rows.start) as usize]
1921 .x_for_index(align_to.column() as usize)
1922 } else {
1923 layout_line(align_to.row(), snapshot, &self.style, cx)
1924 .x_for_index(align_to.column() as usize)
1925 };
1926
1927 block.render(&mut BlockContext {
1928 context: cx,
1929 anchor_x,
1930 gutter_dimensions,
1931 line_height,
1932 em_width,
1933 block_id,
1934 max_width: text_hitbox.size.width.max(*scroll_width),
1935 editor_style: &self.style,
1936 })
1937 }
1938
1939 TransformBlock::ExcerptHeader {
1940 buffer,
1941 range,
1942 starts_new_buffer,
1943 height,
1944 id,
1945 show_excerpt_controls,
1946 ..
1947 } => {
1948 let include_root = self
1949 .editor
1950 .read(cx)
1951 .project
1952 .as_ref()
1953 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
1954 .unwrap_or_default();
1955
1956 #[derive(Clone)]
1957 struct JumpData {
1958 position: Point,
1959 anchor: text::Anchor,
1960 path: ProjectPath,
1961 line_offset_from_top: u32,
1962 }
1963
1964 let jump_data = project::File::from_dyn(buffer.file()).map(|file| {
1965 let jump_path = ProjectPath {
1966 worktree_id: file.worktree_id(cx),
1967 path: file.path.clone(),
1968 };
1969 let jump_anchor = range
1970 .primary
1971 .as_ref()
1972 .map_or(range.context.start, |primary| primary.start);
1973
1974 let excerpt_start = range.context.start;
1975 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
1976 let offset_from_excerpt_start = if jump_anchor == excerpt_start {
1977 0
1978 } else {
1979 let excerpt_start_row =
1980 language::ToPoint::to_point(&jump_anchor, buffer).row;
1981 jump_position.row - excerpt_start_row
1982 };
1983
1984 let line_offset_from_top =
1985 block_row_start.0 + *height as u32 + offset_from_excerpt_start
1986 - snapshot
1987 .scroll_anchor
1988 .scroll_position(&snapshot.display_snapshot)
1989 .y as u32;
1990
1991 JumpData {
1992 position: jump_position,
1993 anchor: jump_anchor,
1994 path: jump_path,
1995 line_offset_from_top,
1996 }
1997 });
1998
1999 let icon_offset = gutter_dimensions.width
2000 - (gutter_dimensions.left_padding + gutter_dimensions.margin);
2001
2002 let element = if *starts_new_buffer {
2003 let path = buffer.resolve_file_path(cx, include_root);
2004 let mut filename = None;
2005 let mut parent_path = None;
2006 // Can't use .and_then() because `.file_name()` and `.parent()` return references :(
2007 if let Some(path) = path {
2008 filename = path.file_name().map(|f| f.to_string_lossy().to_string());
2009 parent_path = path
2010 .parent()
2011 .map(|p| SharedString::from(p.to_string_lossy().to_string() + "/"));
2012 }
2013
2014 let header_padding = px(6.0);
2015
2016 v_flex()
2017 .id(("path excerpt header", block_id))
2018 .size_full()
2019 .p(header_padding)
2020 .child(
2021 h_flex()
2022 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
2023 .id("path header block")
2024 .pl(gpui::px(12.))
2025 .pr(gpui::px(8.))
2026 .rounded_md()
2027 .shadow_md()
2028 .border_1()
2029 .border_color(cx.theme().colors().border)
2030 .bg(cx.theme().colors().editor_subheader_background)
2031 .justify_between()
2032 .hover(|style| style.bg(cx.theme().colors().element_hover))
2033 .child(
2034 h_flex().gap_3().child(
2035 h_flex()
2036 .gap_2()
2037 .child(
2038 filename
2039 .map(SharedString::from)
2040 .unwrap_or_else(|| "untitled".into()),
2041 )
2042 .when_some(parent_path, |then, path| {
2043 then.child(
2044 div().child(path).text_color(
2045 cx.theme().colors().text_muted,
2046 ),
2047 )
2048 }),
2049 ),
2050 )
2051 .when_some(jump_data.clone(), |this, jump_data| {
2052 this.cursor_pointer()
2053 .tooltip(|cx| {
2054 Tooltip::for_action(
2055 "Jump to File",
2056 &OpenExcerpts,
2057 cx,
2058 )
2059 })
2060 .on_mouse_down(MouseButton::Left, |_, cx| {
2061 cx.stop_propagation()
2062 })
2063 .on_click(cx.listener_for(&self.editor, {
2064 move |editor, _, cx| {
2065 editor.jump(
2066 jump_data.path.clone(),
2067 jump_data.position,
2068 jump_data.anchor,
2069 jump_data.line_offset_from_top,
2070 cx,
2071 );
2072 }
2073 }))
2074 }),
2075 )
2076 .children(show_excerpt_controls.then(|| {
2077 h_flex()
2078 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.333)))
2079 .pt_1()
2080 .justify_end()
2081 .flex_none()
2082 .w(icon_offset - header_padding)
2083 .child(
2084 ButtonLike::new("expand-icon")
2085 .style(ButtonStyle::Transparent)
2086 .child(
2087 svg()
2088 .path(IconName::ArrowUpFromLine.path())
2089 .size(IconSize::XSmall.rems())
2090 .text_color(
2091 cx.theme().colors().editor_line_number,
2092 )
2093 .group("")
2094 .hover(|style| {
2095 style.text_color(
2096 cx.theme()
2097 .colors()
2098 .editor_active_line_number,
2099 )
2100 }),
2101 )
2102 .on_click(cx.listener_for(&self.editor, {
2103 let id = *id;
2104 move |editor, _, cx| {
2105 editor.expand_excerpt(
2106 id,
2107 multi_buffer::ExpandExcerptDirection::Up,
2108 cx,
2109 );
2110 }
2111 }))
2112 .tooltip({
2113 move |cx| {
2114 Tooltip::for_action(
2115 "Expand Excerpt",
2116 &ExpandExcerpts { lines: 0 },
2117 cx,
2118 )
2119 }
2120 }),
2121 )
2122 }))
2123 } else {
2124 v_flex()
2125 .id(("excerpt header", block_id))
2126 .size_full()
2127 .child(
2128 div()
2129 .flex()
2130 .v_flex()
2131 .justify_start()
2132 .id("jump to collapsed context")
2133 .w(relative(1.0))
2134 .h_full()
2135 .child(
2136 div()
2137 .h_px()
2138 .w_full()
2139 .bg(cx.theme().colors().border_variant)
2140 .group_hover("excerpt-jump-action", |style| {
2141 style.bg(cx.theme().colors().border)
2142 }),
2143 ),
2144 )
2145 .child(
2146 h_flex()
2147 .justify_end()
2148 .flex_none()
2149 .w(icon_offset)
2150 .h_full()
2151 .child(
2152 show_excerpt_controls.then(|| {
2153 ButtonLike::new("expand-icon")
2154 .style(ButtonStyle::Transparent)
2155 .child(
2156 svg()
2157 .path(IconName::ArrowUpFromLine.path())
2158 .size(IconSize::XSmall.rems())
2159 .text_color(
2160 cx.theme().colors().editor_line_number,
2161 )
2162 .group("")
2163 .hover(|style| {
2164 style.text_color(
2165 cx.theme()
2166 .colors()
2167 .editor_active_line_number,
2168 )
2169 }),
2170 )
2171 .on_click(cx.listener_for(&self.editor, {
2172 let id = *id;
2173 move |editor, _, cx| {
2174 editor.expand_excerpt(
2175 id,
2176 multi_buffer::ExpandExcerptDirection::Up,
2177 cx,
2178 );
2179 }
2180 }))
2181 .tooltip({
2182 move |cx| {
2183 Tooltip::for_action(
2184 "Expand Excerpt",
2185 &ExpandExcerpts { lines: 0 },
2186 cx,
2187 )
2188 }
2189 })
2190 }).unwrap_or_else(|| {
2191 ButtonLike::new("jump-icon")
2192 .style(ButtonStyle::Transparent)
2193 .child(
2194 svg()
2195 .path(IconName::ArrowUpRight.path())
2196 .size(IconSize::XSmall.rems())
2197 .text_color(
2198 cx.theme().colors().border_variant,
2199 )
2200 .group("excerpt-jump-action")
2201 .group_hover("excerpt-jump-action", |style| {
2202 style.text_color(
2203 cx.theme().colors().border
2204
2205 )
2206 })
2207 )
2208 .when_some(jump_data.clone(), |this, jump_data| {
2209 this.on_click(cx.listener_for(&self.editor, {
2210 let path = jump_data.path.clone();
2211 move |editor, _, cx| {
2212 cx.stop_propagation();
2213
2214 editor.jump(
2215 path.clone(),
2216 jump_data.position,
2217 jump_data.anchor,
2218 jump_data.line_offset_from_top,
2219 cx,
2220 );
2221 }
2222 }))
2223 .tooltip(move |cx| {
2224 Tooltip::for_action(
2225 format!(
2226 "Jump to {}:L{}",
2227 jump_data.path.path.display(),
2228 jump_data.position.row + 1
2229 ),
2230 &OpenExcerpts,
2231 cx,
2232 )
2233 })
2234 })
2235 })
2236
2237 ),
2238 )
2239 .group("excerpt-jump-action")
2240 .cursor_pointer()
2241 .when_some(jump_data.clone(), |this, jump_data| {
2242 this.on_click(cx.listener_for(&self.editor, {
2243 let path = jump_data.path.clone();
2244 move |editor, _, cx| {
2245 cx.stop_propagation();
2246
2247 editor.jump(
2248 path.clone(),
2249 jump_data.position,
2250 jump_data.anchor,
2251 jump_data.line_offset_from_top,
2252 cx,
2253 );
2254 }
2255 }))
2256 .tooltip(move |cx| {
2257 Tooltip::for_action(
2258 format!(
2259 "Jump to {}:L{}",
2260 jump_data.path.path.display(),
2261 jump_data.position.row + 1
2262 ),
2263 &OpenExcerpts,
2264 cx,
2265 )
2266 })
2267 })
2268 };
2269 element.into_any()
2270 }
2271
2272 TransformBlock::ExcerptFooter { id, .. } => {
2273 let element = v_flex().id(("excerpt footer", block_id)).size_full().child(
2274 h_flex()
2275 .justify_end()
2276 .flex_none()
2277 .w(gutter_dimensions.width
2278 - (gutter_dimensions.left_padding + gutter_dimensions.margin))
2279 .h_full()
2280 .child(
2281 ButtonLike::new("expand-icon")
2282 .style(ButtonStyle::Transparent)
2283 .child(
2284 svg()
2285 .path(IconName::ArrowDownFromLine.path())
2286 .size(IconSize::XSmall.rems())
2287 .text_color(cx.theme().colors().editor_line_number)
2288 .group("")
2289 .hover(|style| {
2290 style.text_color(
2291 cx.theme().colors().editor_active_line_number,
2292 )
2293 }),
2294 )
2295 .on_click(cx.listener_for(&self.editor, {
2296 let id = *id;
2297 move |editor, _, cx| {
2298 editor.expand_excerpt(
2299 id,
2300 multi_buffer::ExpandExcerptDirection::Down,
2301 cx,
2302 );
2303 }
2304 }))
2305 .tooltip({
2306 move |cx| {
2307 Tooltip::for_action(
2308 "Expand Excerpt",
2309 &ExpandExcerpts { lines: 0 },
2310 cx,
2311 )
2312 }
2313 }),
2314 ),
2315 );
2316 element.into_any()
2317 }
2318 };
2319
2320 let size = element.layout_as_root(available_space, cx);
2321 (element, size)
2322 };
2323
2324 let mut fixed_block_max_width = Pixels::ZERO;
2325 let mut blocks = Vec::new();
2326 for (row, block) in fixed_blocks {
2327 let available_space = size(
2328 AvailableSpace::MinContent,
2329 AvailableSpace::Definite(block.height() as f32 * line_height),
2330 );
2331 let (element, element_size) = render_block(block, available_space, block_id, row, cx);
2332 block_id += 1;
2333 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
2334 blocks.push(BlockLayout {
2335 row,
2336 element,
2337 available_space,
2338 style: BlockStyle::Fixed,
2339 });
2340 }
2341 for (row, block) in non_fixed_blocks {
2342 let style = match block {
2343 TransformBlock::Custom(block) => block.style(),
2344 TransformBlock::ExcerptHeader { .. } => BlockStyle::Sticky,
2345 TransformBlock::ExcerptFooter { .. } => BlockStyle::Sticky,
2346 };
2347 let width = match style {
2348 BlockStyle::Sticky => hitbox.size.width,
2349 BlockStyle::Flex => hitbox
2350 .size
2351 .width
2352 .max(fixed_block_max_width)
2353 .max(gutter_dimensions.width + *scroll_width),
2354 BlockStyle::Fixed => unreachable!(),
2355 };
2356 let available_space = size(
2357 AvailableSpace::Definite(width),
2358 AvailableSpace::Definite(block.height() as f32 * line_height),
2359 );
2360 let (element, _) = render_block(block, available_space, block_id, row, cx);
2361 block_id += 1;
2362 blocks.push(BlockLayout {
2363 row,
2364 element,
2365 available_space,
2366 style,
2367 });
2368 }
2369
2370 *scroll_width = (*scroll_width).max(fixed_block_max_width - gutter_dimensions.width);
2371 blocks
2372 }
2373
2374 fn layout_blocks(
2375 &self,
2376 blocks: &mut Vec<BlockLayout>,
2377 hitbox: &Hitbox,
2378 line_height: Pixels,
2379 scroll_pixel_position: gpui::Point<Pixels>,
2380 cx: &mut WindowContext,
2381 ) {
2382 for block in blocks {
2383 let mut origin = hitbox.origin
2384 + point(
2385 Pixels::ZERO,
2386 block.row.as_f32() * line_height - scroll_pixel_position.y,
2387 );
2388 if !matches!(block.style, BlockStyle::Sticky) {
2389 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
2390 }
2391 block
2392 .element
2393 .prepaint_as_root(origin, block.available_space, cx);
2394 }
2395 }
2396
2397 #[allow(clippy::too_many_arguments)]
2398 fn layout_context_menu(
2399 &self,
2400 line_height: Pixels,
2401 hitbox: &Hitbox,
2402 text_hitbox: &Hitbox,
2403 content_origin: gpui::Point<Pixels>,
2404 start_row: DisplayRow,
2405 scroll_pixel_position: gpui::Point<Pixels>,
2406 line_layouts: &[LineWithInvisibles],
2407 newest_selection_head: DisplayPoint,
2408 gutter_overshoot: Pixels,
2409 cx: &mut WindowContext,
2410 ) -> bool {
2411 let max_height = cmp::min(
2412 12. * line_height,
2413 cmp::max(3. * line_height, (hitbox.size.height - line_height) / 2.),
2414 );
2415 let Some((position, mut context_menu)) = self.editor.update(cx, |editor, cx| {
2416 if editor.context_menu_visible() {
2417 editor.render_context_menu(newest_selection_head, &self.style, max_height, cx)
2418 } else {
2419 None
2420 }
2421 }) else {
2422 return false;
2423 };
2424
2425 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2426 let context_menu_size = context_menu.layout_as_root(available_space, cx);
2427
2428 let (x, y) = match position {
2429 crate::ContextMenuOrigin::EditorPoint(point) => {
2430 let cursor_row_layout = &line_layouts[point.row().minus(start_row) as usize];
2431 let x = cursor_row_layout.x_for_index(point.column() as usize)
2432 - scroll_pixel_position.x;
2433 let y = point.row().next_row().as_f32() * line_height - scroll_pixel_position.y;
2434 (x, y)
2435 }
2436 crate::ContextMenuOrigin::GutterIndicator(row) => {
2437 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the indicator than just a plain first column of the
2438 // text field.
2439 let x = -gutter_overshoot;
2440 let y = row.next_row().as_f32() * line_height - scroll_pixel_position.y;
2441 (x, y)
2442 }
2443 };
2444
2445 let mut list_origin = content_origin + point(x, y);
2446 let list_width = context_menu_size.width;
2447 let list_height = context_menu_size.height;
2448
2449 // Snap the right edge of the list to the right edge of the window if
2450 // its horizontal bounds overflow.
2451 if list_origin.x + list_width > cx.viewport_size().width {
2452 list_origin.x = (cx.viewport_size().width - list_width).max(Pixels::ZERO);
2453 }
2454
2455 if list_origin.y + list_height > text_hitbox.lower_right().y {
2456 list_origin.y -= line_height + list_height;
2457 }
2458
2459 cx.defer_draw(context_menu, list_origin, 1);
2460 true
2461 }
2462
2463 fn layout_mouse_context_menu(&self, cx: &mut WindowContext) -> Option<AnyElement> {
2464 let mouse_context_menu = self.editor.read(cx).mouse_context_menu.as_ref()?;
2465 let mut element = deferred(
2466 anchored()
2467 .position(mouse_context_menu.position)
2468 .child(mouse_context_menu.context_menu.clone())
2469 .anchor(AnchorCorner::TopLeft)
2470 .snap_to_window(),
2471 )
2472 .with_priority(1)
2473 .into_any();
2474
2475 element.prepaint_as_root(gpui::Point::default(), AvailableSpace::min_size(), cx);
2476 Some(element)
2477 }
2478
2479 #[allow(clippy::too_many_arguments)]
2480 fn layout_hover_popovers(
2481 &self,
2482 snapshot: &EditorSnapshot,
2483 hitbox: &Hitbox,
2484 text_hitbox: &Hitbox,
2485 visible_display_row_range: Range<DisplayRow>,
2486 content_origin: gpui::Point<Pixels>,
2487 scroll_pixel_position: gpui::Point<Pixels>,
2488 line_layouts: &[LineWithInvisibles],
2489 line_height: Pixels,
2490 em_width: Pixels,
2491 cx: &mut WindowContext,
2492 ) {
2493 struct MeasuredHoverPopover {
2494 element: AnyElement,
2495 size: Size<Pixels>,
2496 horizontal_offset: Pixels,
2497 }
2498
2499 let max_size = size(
2500 (120. * em_width) // Default size
2501 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
2502 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
2503 (16. * line_height) // Default size
2504 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
2505 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
2506 );
2507
2508 let hover_popovers = self.editor.update(cx, |editor, cx| {
2509 editor.hover_state.render(
2510 &snapshot,
2511 &self.style,
2512 visible_display_row_range.clone(),
2513 max_size,
2514 editor.workspace.as_ref().map(|(w, _)| w.clone()),
2515 cx,
2516 )
2517 });
2518 let Some((position, hover_popovers)) = hover_popovers else {
2519 return;
2520 };
2521
2522 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
2523
2524 // This is safe because we check on layout whether the required row is available
2525 let hovered_row_layout =
2526 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
2527
2528 // Compute Hovered Point
2529 let x =
2530 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
2531 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
2532 let hovered_point = content_origin + point(x, y);
2533
2534 let mut overall_height = Pixels::ZERO;
2535 let mut measured_hover_popovers = Vec::new();
2536 for mut hover_popover in hover_popovers {
2537 let size = hover_popover.layout_as_root(available_space, cx);
2538 let horizontal_offset =
2539 (text_hitbox.upper_right().x - (hovered_point.x + size.width)).min(Pixels::ZERO);
2540
2541 overall_height += HOVER_POPOVER_GAP + size.height;
2542
2543 measured_hover_popovers.push(MeasuredHoverPopover {
2544 element: hover_popover,
2545 size,
2546 horizontal_offset,
2547 });
2548 }
2549 overall_height += HOVER_POPOVER_GAP;
2550
2551 fn draw_occluder(width: Pixels, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
2552 let mut occlusion = div()
2553 .size_full()
2554 .occlude()
2555 .on_mouse_move(|_, cx| cx.stop_propagation())
2556 .into_any_element();
2557 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), cx);
2558 cx.defer_draw(occlusion, origin, 2);
2559 }
2560
2561 if hovered_point.y > overall_height {
2562 // There is enough space above. Render popovers above the hovered point
2563 let mut current_y = hovered_point.y;
2564 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2565 let size = popover.size;
2566 let popover_origin = point(
2567 hovered_point.x + popover.horizontal_offset,
2568 current_y - size.height,
2569 );
2570
2571 cx.defer_draw(popover.element, popover_origin, 2);
2572 if position != itertools::Position::Last {
2573 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
2574 draw_occluder(size.width, origin, cx);
2575 }
2576
2577 current_y = popover_origin.y - HOVER_POPOVER_GAP;
2578 }
2579 } else {
2580 // There is not enough space above. Render popovers below the hovered point
2581 let mut current_y = hovered_point.y + line_height;
2582 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
2583 let size = popover.size;
2584 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
2585
2586 cx.defer_draw(popover.element, popover_origin, 2);
2587 if position != itertools::Position::Last {
2588 let origin = point(popover_origin.x, popover_origin.y + size.height);
2589 draw_occluder(size.width, origin, cx);
2590 }
2591
2592 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
2593 }
2594 }
2595 }
2596
2597 fn paint_background(&self, layout: &EditorLayout, cx: &mut WindowContext) {
2598 cx.paint_layer(layout.hitbox.bounds, |cx| {
2599 let scroll_top = layout.position_map.snapshot.scroll_position().y;
2600 let gutter_bg = cx.theme().colors().editor_gutter_background;
2601 cx.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
2602 cx.paint_quad(fill(layout.text_hitbox.bounds, self.style.background));
2603
2604 if let EditorMode::Full = layout.mode {
2605 let mut active_rows = layout.active_rows.iter().peekable();
2606 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
2607 let mut end_row = start_row.0;
2608 while active_rows
2609 .peek()
2610 .map_or(false, |(active_row, has_selection)| {
2611 active_row.0 == end_row + 1
2612 && *has_selection == contains_non_empty_selection
2613 })
2614 {
2615 active_rows.next().unwrap();
2616 end_row += 1;
2617 }
2618
2619 if !contains_non_empty_selection {
2620 let highlight_h_range =
2621 match layout.position_map.snapshot.current_line_highlight {
2622 CurrentLineHighlight::Gutter => Some(Range {
2623 start: layout.hitbox.left(),
2624 end: layout.gutter_hitbox.right(),
2625 }),
2626 CurrentLineHighlight::Line => Some(Range {
2627 start: layout.text_hitbox.bounds.left(),
2628 end: layout.text_hitbox.bounds.right(),
2629 }),
2630 CurrentLineHighlight::All => Some(Range {
2631 start: layout.hitbox.left(),
2632 end: layout.hitbox.right(),
2633 }),
2634 CurrentLineHighlight::None => None,
2635 };
2636 if let Some(range) = highlight_h_range {
2637 let active_line_bg = cx.theme().colors().editor_active_line_background;
2638 let bounds = Bounds {
2639 origin: point(
2640 range.start,
2641 layout.hitbox.origin.y
2642 + (start_row.as_f32() - scroll_top)
2643 * layout.position_map.line_height,
2644 ),
2645 size: size(
2646 range.end - range.start,
2647 layout.position_map.line_height
2648 * (end_row - start_row.0 + 1) as f32,
2649 ),
2650 };
2651 cx.paint_quad(fill(bounds, active_line_bg));
2652 }
2653 }
2654 }
2655
2656 let mut paint_highlight =
2657 |highlight_row_start: DisplayRow, highlight_row_end: DisplayRow, color| {
2658 let origin = point(
2659 layout.hitbox.origin.x,
2660 layout.hitbox.origin.y
2661 + (highlight_row_start.as_f32() - scroll_top)
2662 * layout.position_map.line_height,
2663 );
2664 let size = size(
2665 layout.hitbox.size.width,
2666 layout.position_map.line_height
2667 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
2668 );
2669 cx.paint_quad(fill(Bounds { origin, size }, color));
2670 };
2671
2672 let mut current_paint: Option<(Hsla, Range<DisplayRow>)> = None;
2673 for (&new_row, &new_color) in &layout.highlighted_rows {
2674 match &mut current_paint {
2675 Some((current_color, current_range)) => {
2676 let current_color = *current_color;
2677 let new_range_started = current_color != new_color
2678 || current_range.end.next_row() != new_row;
2679 if new_range_started {
2680 paint_highlight(
2681 current_range.start,
2682 current_range.end,
2683 current_color,
2684 );
2685 current_paint = Some((new_color, new_row..new_row));
2686 continue;
2687 } else {
2688 current_range.end = current_range.end.next_row();
2689 }
2690 }
2691 None => current_paint = Some((new_color, new_row..new_row)),
2692 };
2693 }
2694 if let Some((color, range)) = current_paint {
2695 paint_highlight(range.start, range.end, color);
2696 }
2697
2698 let scroll_left =
2699 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
2700
2701 for (wrap_position, active) in layout.wrap_guides.iter() {
2702 let x = (layout.text_hitbox.origin.x
2703 + *wrap_position
2704 + layout.position_map.em_width / 2.)
2705 - scroll_left;
2706
2707 let show_scrollbars = layout
2708 .scrollbar_layout
2709 .as_ref()
2710 .map_or(false, |scrollbar| scrollbar.visible);
2711 if x < layout.text_hitbox.origin.x
2712 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
2713 {
2714 continue;
2715 }
2716
2717 let color = if *active {
2718 cx.theme().colors().editor_active_wrap_guide
2719 } else {
2720 cx.theme().colors().editor_wrap_guide
2721 };
2722 cx.paint_quad(fill(
2723 Bounds {
2724 origin: point(x, layout.text_hitbox.origin.y),
2725 size: size(px(1.), layout.text_hitbox.size.height),
2726 },
2727 color,
2728 ));
2729 }
2730 }
2731 })
2732 }
2733
2734 fn paint_indent_guides(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2735 let Some(indent_guides) = &layout.indent_guides else {
2736 return;
2737 };
2738
2739 let faded_color = |color: Hsla, alpha: f32| {
2740 let mut faded = color;
2741 faded.a = alpha;
2742 faded
2743 };
2744
2745 for indent_guide in indent_guides {
2746 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
2747 let settings = indent_guide.settings;
2748
2749 // TODO fixed for now, expose them through themes later
2750 const INDENT_AWARE_ALPHA: f32 = 0.2;
2751 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
2752 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
2753 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
2754
2755 let line_color = match (settings.coloring, indent_guide.active) {
2756 (IndentGuideColoring::Disabled, _) => None,
2757 (IndentGuideColoring::Fixed, false) => {
2758 Some(cx.theme().colors().editor_indent_guide)
2759 }
2760 (IndentGuideColoring::Fixed, true) => {
2761 Some(cx.theme().colors().editor_indent_guide_active)
2762 }
2763 (IndentGuideColoring::IndentAware, false) => {
2764 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
2765 }
2766 (IndentGuideColoring::IndentAware, true) => {
2767 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
2768 }
2769 };
2770
2771 let background_color = match (settings.background_coloring, indent_guide.active) {
2772 (IndentGuideBackgroundColoring::Disabled, _) => None,
2773 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
2774 indent_accent_colors,
2775 INDENT_AWARE_BACKGROUND_ALPHA,
2776 )),
2777 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
2778 indent_accent_colors,
2779 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
2780 )),
2781 };
2782
2783 let requested_line_width = settings.line_width.clamp(1, 10);
2784 let mut line_indicator_width = 0.;
2785 if let Some(color) = line_color {
2786 cx.paint_quad(fill(
2787 Bounds {
2788 origin: indent_guide.origin,
2789 size: size(px(requested_line_width as f32), indent_guide.length),
2790 },
2791 color,
2792 ));
2793 line_indicator_width = requested_line_width as f32;
2794 }
2795
2796 if let Some(color) = background_color {
2797 let width = indent_guide.single_indent_width - px(line_indicator_width);
2798 cx.paint_quad(fill(
2799 Bounds {
2800 origin: point(
2801 indent_guide.origin.x + px(line_indicator_width),
2802 indent_guide.origin.y,
2803 ),
2804 size: size(width, indent_guide.length),
2805 },
2806 color,
2807 ));
2808 }
2809 }
2810 }
2811
2812 fn paint_gutter(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
2813 let line_height = layout.position_map.line_height;
2814
2815 let scroll_position = layout.position_map.snapshot.scroll_position();
2816 let scroll_top = scroll_position.y * line_height;
2817
2818 cx.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
2819 for (_, hunk_hitbox) in &layout.display_hunks {
2820 if let Some(hunk_hitbox) = hunk_hitbox {
2821 cx.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
2822 }
2823 }
2824
2825 let show_git_gutter = layout
2826 .position_map
2827 .snapshot
2828 .show_git_diff_gutter
2829 .unwrap_or_else(|| {
2830 matches!(
2831 ProjectSettings::get_global(cx).git.git_gutter,
2832 Some(GitGutterSetting::TrackedFiles)
2833 )
2834 });
2835 if show_git_gutter {
2836 Self::paint_diff_hunks(layout.gutter_hitbox.bounds, layout, cx)
2837 }
2838
2839 if layout.blamed_display_rows.is_some() {
2840 self.paint_blamed_display_rows(layout, cx);
2841 }
2842
2843 for (ix, line) in layout.line_numbers.iter().enumerate() {
2844 if let Some(line) = line {
2845 let line_origin = layout.gutter_hitbox.origin
2846 + point(
2847 layout.gutter_hitbox.size.width
2848 - line.width
2849 - layout.gutter_dimensions.right_padding,
2850 ix as f32 * line_height - (scroll_top % line_height),
2851 );
2852
2853 line.paint(line_origin, line_height, cx).log_err();
2854 }
2855 }
2856
2857 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2858 cx.with_element_namespace("gutter_fold_toggles", |cx| {
2859 for fold_indicator in layout.gutter_fold_toggles.iter_mut().flatten() {
2860 fold_indicator.paint(cx);
2861 }
2862 });
2863
2864 for test_indicators in layout.test_indicators.iter_mut() {
2865 test_indicators.paint(cx);
2866 }
2867
2868 if let Some(indicator) = layout.code_actions_indicator.as_mut() {
2869 indicator.paint(cx);
2870 }
2871 });
2872 }
2873
2874 fn paint_diff_hunks(
2875 gutter_bounds: Bounds<Pixels>,
2876 layout: &EditorLayout,
2877 cx: &mut WindowContext,
2878 ) {
2879 if layout.display_hunks.is_empty() {
2880 return;
2881 }
2882
2883 let line_height = layout.position_map.line_height;
2884 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
2885 for (hunk, hitbox) in &layout.display_hunks {
2886 let hunk_to_paint = match hunk {
2887 DisplayDiffHunk::Folded { .. } => {
2888 let hunk_bounds = Self::diff_hunk_bounds(
2889 &layout.position_map.snapshot,
2890 line_height,
2891 gutter_bounds,
2892 &hunk,
2893 );
2894 Some((
2895 hunk_bounds,
2896 cx.theme().status().modified,
2897 Corners::all(1. * line_height),
2898 ))
2899 }
2900 DisplayDiffHunk::Unfolded { status, .. } => {
2901 hitbox.as_ref().map(|hunk_hitbox| match status {
2902 DiffHunkStatus::Added => (
2903 hunk_hitbox.bounds,
2904 cx.theme().status().created,
2905 Corners::all(0.05 * line_height),
2906 ),
2907 DiffHunkStatus::Modified => (
2908 hunk_hitbox.bounds,
2909 cx.theme().status().modified,
2910 Corners::all(0.05 * line_height),
2911 ),
2912 DiffHunkStatus::Removed => (
2913 Bounds::new(
2914 point(
2915 hunk_hitbox.origin.x - hunk_hitbox.size.width,
2916 hunk_hitbox.origin.y,
2917 ),
2918 size(hunk_hitbox.size.width * px(2.), hunk_hitbox.size.height),
2919 ),
2920 cx.theme().status().deleted,
2921 Corners::all(1. * line_height),
2922 ),
2923 })
2924 }
2925 };
2926
2927 if let Some((hunk_bounds, background_color, corner_radii)) = hunk_to_paint {
2928 cx.paint_quad(quad(
2929 hunk_bounds,
2930 corner_radii,
2931 background_color,
2932 Edges::default(),
2933 transparent_black(),
2934 ));
2935 }
2936 }
2937 });
2938 }
2939
2940 fn diff_hunk_bounds(
2941 snapshot: &EditorSnapshot,
2942 line_height: Pixels,
2943 bounds: Bounds<Pixels>,
2944 hunk: &DisplayDiffHunk,
2945 ) -> Bounds<Pixels> {
2946 let scroll_position = snapshot.scroll_position();
2947 let scroll_top = scroll_position.y * line_height;
2948
2949 match hunk {
2950 DisplayDiffHunk::Folded { display_row, .. } => {
2951 let start_y = display_row.as_f32() * line_height - scroll_top;
2952 let end_y = start_y + line_height;
2953
2954 let width = 0.275 * line_height;
2955 let highlight_origin = bounds.origin + point(px(0.), start_y);
2956 let highlight_size = size(width, end_y - start_y);
2957 Bounds::new(highlight_origin, highlight_size)
2958 }
2959 DisplayDiffHunk::Unfolded {
2960 display_row_range,
2961 status,
2962 ..
2963 } => match status {
2964 DiffHunkStatus::Added | DiffHunkStatus::Modified => {
2965 let start_row = display_row_range.start;
2966 let end_row = display_row_range.end;
2967 // If we're in a multibuffer, row range span might include an
2968 // excerpt header, so if we were to draw the marker straight away,
2969 // the hunk might include the rows of that header.
2970 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
2971 // Instead, we simply check whether the range we're dealing with includes
2972 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
2973 let end_row_in_current_excerpt = snapshot
2974 .blocks_in_range(start_row..end_row)
2975 .find_map(|(start_row, block)| {
2976 if matches!(block, TransformBlock::ExcerptHeader { .. }) {
2977 Some(start_row)
2978 } else {
2979 None
2980 }
2981 })
2982 .unwrap_or(end_row);
2983
2984 let start_y = start_row.as_f32() * line_height - scroll_top;
2985 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
2986
2987 let width = 0.275 * line_height;
2988 let highlight_origin = bounds.origin + point(px(0.), start_y);
2989 let highlight_size = size(width, end_y - start_y);
2990 Bounds::new(highlight_origin, highlight_size)
2991 }
2992 DiffHunkStatus::Removed => {
2993 let row = display_row_range.start;
2994
2995 let offset = line_height / 2.;
2996 let start_y = row.as_f32() * line_height - offset - scroll_top;
2997 let end_y = start_y + line_height;
2998
2999 let width = 0.35 * line_height;
3000 let highlight_origin = bounds.origin + point(px(0.), start_y);
3001 let highlight_size = size(width, end_y - start_y);
3002 Bounds::new(highlight_origin, highlight_size)
3003 }
3004 },
3005 }
3006 }
3007
3008 fn paint_blamed_display_rows(&self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3009 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
3010 return;
3011 };
3012
3013 cx.paint_layer(layout.gutter_hitbox.bounds, |cx| {
3014 for mut blame_element in blamed_display_rows.into_iter() {
3015 blame_element.paint(cx);
3016 }
3017 })
3018 }
3019
3020 fn paint_text(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3021 cx.with_content_mask(
3022 Some(ContentMask {
3023 bounds: layout.text_hitbox.bounds,
3024 }),
3025 |cx| {
3026 let cursor_style = if self
3027 .editor
3028 .read(cx)
3029 .hovered_link_state
3030 .as_ref()
3031 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
3032 {
3033 CursorStyle::PointingHand
3034 } else {
3035 CursorStyle::IBeam
3036 };
3037 cx.set_cursor_style(cursor_style, &layout.text_hitbox);
3038
3039 let invisible_display_ranges = self.paint_highlights(layout, cx);
3040 self.paint_lines(&invisible_display_ranges, layout, cx);
3041 self.paint_redactions(layout, cx);
3042 self.paint_cursors(layout, cx);
3043 self.paint_inline_blame(layout, cx);
3044 cx.with_element_namespace("flap_trailers", |cx| {
3045 for trailer in layout.flap_trailers.iter_mut().flatten() {
3046 trailer.element.paint(cx);
3047 }
3048 });
3049 },
3050 )
3051 }
3052
3053 fn paint_highlights(
3054 &mut self,
3055 layout: &mut EditorLayout,
3056 cx: &mut WindowContext,
3057 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
3058 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3059 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
3060 let line_end_overshoot = 0.15 * layout.position_map.line_height;
3061 for (range, color) in &layout.highlighted_ranges {
3062 self.paint_highlighted_range(
3063 range.clone(),
3064 *color,
3065 Pixels::ZERO,
3066 line_end_overshoot,
3067 layout,
3068 cx,
3069 );
3070 }
3071
3072 let corner_radius = 0.15 * layout.position_map.line_height;
3073
3074 for (player_color, selections) in &layout.selections {
3075 for selection in selections.into_iter() {
3076 self.paint_highlighted_range(
3077 selection.range.clone(),
3078 player_color.selection,
3079 corner_radius,
3080 corner_radius * 2.,
3081 layout,
3082 cx,
3083 );
3084
3085 if selection.is_local && !selection.range.is_empty() {
3086 invisible_display_ranges.push(selection.range.clone());
3087 }
3088 }
3089 }
3090 invisible_display_ranges
3091 })
3092 }
3093
3094 fn paint_lines(
3095 &mut self,
3096 invisible_display_ranges: &[Range<DisplayPoint>],
3097 layout: &mut EditorLayout,
3098 cx: &mut WindowContext,
3099 ) {
3100 let whitespace_setting = self
3101 .editor
3102 .read(cx)
3103 .buffer
3104 .read(cx)
3105 .settings_at(0, cx)
3106 .show_whitespaces;
3107
3108 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
3109 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
3110 line_with_invisibles.draw(
3111 layout,
3112 row,
3113 layout.content_origin,
3114 whitespace_setting,
3115 invisible_display_ranges,
3116 cx,
3117 )
3118 }
3119
3120 for line_element in &mut layout.line_elements {
3121 line_element.paint(cx);
3122 }
3123 }
3124
3125 fn paint_redactions(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3126 if layout.redacted_ranges.is_empty() {
3127 return;
3128 }
3129
3130 let line_end_overshoot = layout.line_end_overshoot();
3131
3132 // A softer than perfect black
3133 let redaction_color = gpui::rgb(0x0e1111);
3134
3135 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3136 for range in layout.redacted_ranges.iter() {
3137 self.paint_highlighted_range(
3138 range.clone(),
3139 redaction_color.into(),
3140 Pixels::ZERO,
3141 line_end_overshoot,
3142 layout,
3143 cx,
3144 );
3145 }
3146 });
3147 }
3148
3149 fn paint_cursors(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3150 for cursor in &mut layout.visible_cursors {
3151 cursor.paint(layout.content_origin, cx);
3152 }
3153 }
3154
3155 fn paint_scrollbar(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3156 let Some(scrollbar_layout) = layout.scrollbar_layout.as_ref() else {
3157 return;
3158 };
3159
3160 let thumb_bounds = scrollbar_layout.thumb_bounds();
3161 if scrollbar_layout.visible {
3162 cx.paint_layer(scrollbar_layout.hitbox.bounds, |cx| {
3163 cx.paint_quad(quad(
3164 scrollbar_layout.hitbox.bounds,
3165 Corners::default(),
3166 cx.theme().colors().scrollbar_track_background,
3167 Edges {
3168 top: Pixels::ZERO,
3169 right: Pixels::ZERO,
3170 bottom: Pixels::ZERO,
3171 left: ScrollbarLayout::BORDER_WIDTH,
3172 },
3173 cx.theme().colors().scrollbar_track_border,
3174 ));
3175
3176 let fast_markers =
3177 self.collect_fast_scrollbar_markers(layout, scrollbar_layout, cx);
3178 // Refresh slow scrollbar markers in the background. Below, we paint whatever markers have already been computed.
3179 self.refresh_slow_scrollbar_markers(layout, scrollbar_layout, cx);
3180
3181 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
3182 for marker in markers.iter().chain(&fast_markers) {
3183 let mut marker = marker.clone();
3184 marker.bounds.origin += scrollbar_layout.hitbox.origin;
3185 cx.paint_quad(marker);
3186 }
3187
3188 cx.paint_quad(quad(
3189 thumb_bounds,
3190 Corners::default(),
3191 cx.theme().colors().scrollbar_thumb_background,
3192 Edges {
3193 top: Pixels::ZERO,
3194 right: Pixels::ZERO,
3195 bottom: Pixels::ZERO,
3196 left: ScrollbarLayout::BORDER_WIDTH,
3197 },
3198 cx.theme().colors().scrollbar_thumb_border,
3199 ));
3200 });
3201 }
3202
3203 cx.set_cursor_style(CursorStyle::Arrow, &scrollbar_layout.hitbox);
3204
3205 let row_height = scrollbar_layout.row_height;
3206 let row_range = scrollbar_layout.visible_row_range.clone();
3207
3208 cx.on_mouse_event({
3209 let editor = self.editor.clone();
3210 let hitbox = scrollbar_layout.hitbox.clone();
3211 let mut mouse_position = cx.mouse_position();
3212 move |event: &MouseMoveEvent, phase, cx| {
3213 if phase == DispatchPhase::Capture {
3214 return;
3215 }
3216
3217 editor.update(cx, |editor, cx| {
3218 if event.pressed_button == Some(MouseButton::Left)
3219 && editor.scroll_manager.is_dragging_scrollbar()
3220 {
3221 let y = mouse_position.y;
3222 let new_y = event.position.y;
3223 if (hitbox.top()..hitbox.bottom()).contains(&y) {
3224 let mut position = editor.scroll_position(cx);
3225 position.y += (new_y - y) / row_height;
3226 if position.y < 0.0 {
3227 position.y = 0.0;
3228 }
3229 editor.set_scroll_position(position, cx);
3230 }
3231
3232 cx.stop_propagation();
3233 } else {
3234 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3235 if hitbox.is_hovered(cx) {
3236 editor.scroll_manager.show_scrollbar(cx);
3237 }
3238 }
3239 mouse_position = event.position;
3240 })
3241 }
3242 });
3243
3244 if self.editor.read(cx).scroll_manager.is_dragging_scrollbar() {
3245 cx.on_mouse_event({
3246 let editor = self.editor.clone();
3247 move |_: &MouseUpEvent, phase, cx| {
3248 if phase == DispatchPhase::Capture {
3249 return;
3250 }
3251
3252 editor.update(cx, |editor, cx| {
3253 editor.scroll_manager.set_is_dragging_scrollbar(false, cx);
3254 cx.stop_propagation();
3255 });
3256 }
3257 });
3258 } else {
3259 cx.on_mouse_event({
3260 let editor = self.editor.clone();
3261 let hitbox = scrollbar_layout.hitbox.clone();
3262 move |event: &MouseDownEvent, phase, cx| {
3263 if phase == DispatchPhase::Capture || !hitbox.is_hovered(cx) {
3264 return;
3265 }
3266
3267 editor.update(cx, |editor, cx| {
3268 editor.scroll_manager.set_is_dragging_scrollbar(true, cx);
3269
3270 let y = event.position.y;
3271 if y < thumb_bounds.top() || thumb_bounds.bottom() < y {
3272 let center_row = ((y - hitbox.top()) / row_height).round() as u32;
3273 let top_row = center_row
3274 .saturating_sub((row_range.end - row_range.start) as u32 / 2);
3275 let mut position = editor.scroll_position(cx);
3276 position.y = top_row as f32;
3277 editor.set_scroll_position(position, cx);
3278 } else {
3279 editor.scroll_manager.show_scrollbar(cx);
3280 }
3281
3282 cx.stop_propagation();
3283 });
3284 }
3285 });
3286 }
3287 }
3288
3289 fn collect_fast_scrollbar_markers(
3290 &self,
3291 layout: &EditorLayout,
3292 scrollbar_layout: &ScrollbarLayout,
3293 cx: &mut WindowContext,
3294 ) -> Vec<PaintQuad> {
3295 const LIMIT: usize = 100;
3296 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
3297 return vec![];
3298 }
3299 let cursor_ranges = layout
3300 .cursors
3301 .iter()
3302 .map(|(point, color)| ColoredRange {
3303 start: point.row(),
3304 end: point.row(),
3305 color: *color,
3306 })
3307 .collect_vec();
3308 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
3309 }
3310
3311 fn refresh_slow_scrollbar_markers(
3312 &self,
3313 layout: &EditorLayout,
3314 scrollbar_layout: &ScrollbarLayout,
3315 cx: &mut WindowContext,
3316 ) {
3317 self.editor.update(cx, |editor, cx| {
3318 if !editor.is_singleton(cx)
3319 || !editor
3320 .scrollbar_marker_state
3321 .should_refresh(scrollbar_layout.hitbox.size)
3322 {
3323 return;
3324 }
3325
3326 let scrollbar_layout = scrollbar_layout.clone();
3327 let background_highlights = editor.background_highlights.clone();
3328 let snapshot = layout.position_map.snapshot.clone();
3329 let theme = cx.theme().clone();
3330 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
3331
3332 editor.scrollbar_marker_state.dirty = false;
3333 editor.scrollbar_marker_state.pending_refresh =
3334 Some(cx.spawn(|editor, mut cx| async move {
3335 let scrollbar_size = scrollbar_layout.hitbox.size;
3336 let scrollbar_markers = cx
3337 .background_executor()
3338 .spawn(async move {
3339 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
3340 let mut marker_quads = Vec::new();
3341 if scrollbar_settings.git_diff {
3342 let marker_row_ranges = snapshot
3343 .buffer_snapshot
3344 .git_diff_hunks_in_range(
3345 MultiBufferRow::MIN..MultiBufferRow::MAX,
3346 )
3347 .map(|hunk| {
3348 let start_display_row =
3349 MultiBufferPoint::new(hunk.associated_range.start.0, 0)
3350 .to_display_point(&snapshot.display_snapshot)
3351 .row();
3352 let mut end_display_row =
3353 MultiBufferPoint::new(hunk.associated_range.end.0, 0)
3354 .to_display_point(&snapshot.display_snapshot)
3355 .row();
3356 if end_display_row != start_display_row {
3357 end_display_row.0 -= 1;
3358 }
3359 let color = match hunk_status(&hunk) {
3360 DiffHunkStatus::Added => theme.status().created,
3361 DiffHunkStatus::Modified => theme.status().modified,
3362 DiffHunkStatus::Removed => theme.status().deleted,
3363 };
3364 ColoredRange {
3365 start: start_display_row,
3366 end: end_display_row,
3367 color,
3368 }
3369 });
3370
3371 marker_quads.extend(
3372 scrollbar_layout
3373 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
3374 );
3375 }
3376
3377 for (background_highlight_id, (_, background_ranges)) in
3378 background_highlights.iter()
3379 {
3380 let is_search_highlights = *background_highlight_id
3381 == TypeId::of::<BufferSearchHighlights>();
3382 let is_symbol_occurrences = *background_highlight_id
3383 == TypeId::of::<DocumentHighlightRead>()
3384 || *background_highlight_id
3385 == TypeId::of::<DocumentHighlightWrite>();
3386 if (is_search_highlights && scrollbar_settings.search_results)
3387 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
3388 {
3389 let mut color = theme.status().info;
3390 if is_symbol_occurrences {
3391 color.fade_out(0.5);
3392 }
3393 let marker_row_ranges =
3394 background_ranges.into_iter().map(|range| {
3395 let display_start = range
3396 .start
3397 .to_display_point(&snapshot.display_snapshot);
3398 let display_end = range
3399 .end
3400 .to_display_point(&snapshot.display_snapshot);
3401 ColoredRange {
3402 start: display_start.row(),
3403 end: display_end.row(),
3404 color,
3405 }
3406 });
3407 marker_quads.extend(
3408 scrollbar_layout
3409 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
3410 );
3411 }
3412 }
3413
3414 if scrollbar_settings.diagnostics {
3415 let diagnostics = snapshot
3416 .buffer_snapshot
3417 .diagnostics_in_range::<_, Point>(
3418 Point::zero()..max_point,
3419 false,
3420 )
3421 // We want to sort by severity, in order to paint the most severe diagnostics last.
3422 .sorted_by_key(|diagnostic| {
3423 std::cmp::Reverse(diagnostic.diagnostic.severity)
3424 });
3425
3426 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
3427 let start_display = diagnostic
3428 .range
3429 .start
3430 .to_display_point(&snapshot.display_snapshot);
3431 let end_display = diagnostic
3432 .range
3433 .end
3434 .to_display_point(&snapshot.display_snapshot);
3435 let color = match diagnostic.diagnostic.severity {
3436 DiagnosticSeverity::ERROR => theme.status().error,
3437 DiagnosticSeverity::WARNING => theme.status().warning,
3438 DiagnosticSeverity::INFORMATION => theme.status().info,
3439 _ => theme.status().hint,
3440 };
3441 ColoredRange {
3442 start: start_display.row(),
3443 end: end_display.row(),
3444 color,
3445 }
3446 });
3447 marker_quads.extend(
3448 scrollbar_layout
3449 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
3450 );
3451 }
3452
3453 Arc::from(marker_quads)
3454 })
3455 .await;
3456
3457 editor.update(&mut cx, |editor, cx| {
3458 editor.scrollbar_marker_state.markers = scrollbar_markers;
3459 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
3460 editor.scrollbar_marker_state.pending_refresh = None;
3461 cx.notify();
3462 })?;
3463
3464 Ok(())
3465 }));
3466 });
3467 }
3468
3469 #[allow(clippy::too_many_arguments)]
3470 fn paint_highlighted_range(
3471 &self,
3472 range: Range<DisplayPoint>,
3473 color: Hsla,
3474 corner_radius: Pixels,
3475 line_end_overshoot: Pixels,
3476 layout: &EditorLayout,
3477 cx: &mut WindowContext,
3478 ) {
3479 let start_row = layout.visible_display_row_range.start;
3480 let end_row = layout.visible_display_row_range.end;
3481 if range.start != range.end {
3482 let row_range = if range.end.column() == 0 {
3483 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3484 } else {
3485 cmp::max(range.start.row(), start_row)
3486 ..cmp::min(range.end.row().next_row(), end_row)
3487 };
3488
3489 let highlighted_range = HighlightedRange {
3490 color,
3491 line_height: layout.position_map.line_height,
3492 corner_radius,
3493 start_y: layout.content_origin.y
3494 + row_range.start.as_f32() * layout.position_map.line_height
3495 - layout.position_map.scroll_pixel_position.y,
3496 lines: row_range
3497 .iter_rows()
3498 .map(|row| {
3499 let line_layout =
3500 &layout.position_map.line_layouts[row.minus(start_row) as usize];
3501 HighlightedRangeLine {
3502 start_x: if row == range.start.row() {
3503 layout.content_origin.x
3504 + line_layout.x_for_index(range.start.column() as usize)
3505 - layout.position_map.scroll_pixel_position.x
3506 } else {
3507 layout.content_origin.x
3508 - layout.position_map.scroll_pixel_position.x
3509 },
3510 end_x: if row == range.end.row() {
3511 layout.content_origin.x
3512 + line_layout.x_for_index(range.end.column() as usize)
3513 - layout.position_map.scroll_pixel_position.x
3514 } else {
3515 layout.content_origin.x + line_layout.width + line_end_overshoot
3516 - layout.position_map.scroll_pixel_position.x
3517 },
3518 }
3519 })
3520 .collect(),
3521 };
3522
3523 highlighted_range.paint(layout.text_hitbox.bounds, cx);
3524 }
3525 }
3526
3527 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3528 if let Some(mut inline_blame) = layout.inline_blame.take() {
3529 cx.paint_layer(layout.text_hitbox.bounds, |cx| {
3530 inline_blame.paint(cx);
3531 })
3532 }
3533 }
3534
3535 fn paint_blocks(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3536 for mut block in layout.blocks.drain(..) {
3537 block.element.paint(cx);
3538 }
3539 }
3540
3541 fn paint_mouse_context_menu(&mut self, layout: &mut EditorLayout, cx: &mut WindowContext) {
3542 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
3543 mouse_context_menu.paint(cx);
3544 }
3545 }
3546
3547 fn paint_scroll_wheel_listener(&mut self, layout: &EditorLayout, cx: &mut WindowContext) {
3548 cx.on_mouse_event({
3549 let position_map = layout.position_map.clone();
3550 let editor = self.editor.clone();
3551 let hitbox = layout.hitbox.clone();
3552 let mut delta = ScrollDelta::default();
3553
3554 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
3555 // accidentally turn off their scrolling.
3556 let scroll_sensitivity = EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
3557
3558 move |event: &ScrollWheelEvent, phase, cx| {
3559 if phase == DispatchPhase::Bubble && hitbox.is_hovered(cx) {
3560 delta = delta.coalesce(event.delta);
3561 editor.update(cx, |editor, cx| {
3562 let position_map: &PositionMap = &position_map;
3563
3564 let line_height = position_map.line_height;
3565 let max_glyph_width = position_map.em_width;
3566 let (delta, axis) = match delta {
3567 gpui::ScrollDelta::Pixels(mut pixels) => {
3568 //Trackpad
3569 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
3570 (pixels, axis)
3571 }
3572
3573 gpui::ScrollDelta::Lines(lines) => {
3574 //Not trackpad
3575 let pixels =
3576 point(lines.x * max_glyph_width, lines.y * line_height);
3577 (pixels, None)
3578 }
3579 };
3580
3581 let current_scroll_position = position_map.snapshot.scroll_position();
3582 let x = (current_scroll_position.x * max_glyph_width
3583 - (delta.x * scroll_sensitivity))
3584 / max_glyph_width;
3585 let y = (current_scroll_position.y * line_height
3586 - (delta.y * scroll_sensitivity))
3587 / line_height;
3588 let mut scroll_position =
3589 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
3590 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
3591 if forbid_vertical_scroll {
3592 scroll_position.y = current_scroll_position.y;
3593 if scroll_position == current_scroll_position {
3594 return;
3595 }
3596 }
3597 editor.scroll(scroll_position, axis, cx);
3598 cx.stop_propagation();
3599 });
3600 }
3601 }
3602 });
3603 }
3604
3605 fn paint_mouse_listeners(
3606 &mut self,
3607 layout: &EditorLayout,
3608 hovered_hunk: Option<HunkToExpand>,
3609 cx: &mut WindowContext,
3610 ) {
3611 self.paint_scroll_wheel_listener(layout, cx);
3612
3613 cx.on_mouse_event({
3614 let position_map = layout.position_map.clone();
3615 let editor = self.editor.clone();
3616 let text_hitbox = layout.text_hitbox.clone();
3617 let gutter_hitbox = layout.gutter_hitbox.clone();
3618
3619 move |event: &MouseDownEvent, phase, cx| {
3620 if phase == DispatchPhase::Bubble {
3621 match event.button {
3622 MouseButton::Left => editor.update(cx, |editor, cx| {
3623 Self::mouse_left_down(
3624 editor,
3625 event,
3626 hovered_hunk.as_ref(),
3627 &position_map,
3628 &text_hitbox,
3629 &gutter_hitbox,
3630 cx,
3631 );
3632 }),
3633 MouseButton::Right => editor.update(cx, |editor, cx| {
3634 Self::mouse_right_down(editor, event, &position_map, &text_hitbox, cx);
3635 }),
3636 MouseButton::Middle => editor.update(cx, |editor, cx| {
3637 Self::mouse_middle_down(editor, event, &position_map, &text_hitbox, cx);
3638 }),
3639 _ => {}
3640 };
3641 }
3642 }
3643 });
3644
3645 cx.on_mouse_event({
3646 let editor = self.editor.clone();
3647 let position_map = layout.position_map.clone();
3648 let text_hitbox = layout.text_hitbox.clone();
3649
3650 move |event: &MouseUpEvent, phase, cx| {
3651 if phase == DispatchPhase::Bubble {
3652 editor.update(cx, |editor, cx| {
3653 Self::mouse_up(editor, event, &position_map, &text_hitbox, cx)
3654 });
3655 }
3656 }
3657 });
3658 cx.on_mouse_event({
3659 let position_map = layout.position_map.clone();
3660 let editor = self.editor.clone();
3661 let text_hitbox = layout.text_hitbox.clone();
3662 let gutter_hitbox = layout.gutter_hitbox.clone();
3663
3664 move |event: &MouseMoveEvent, phase, cx| {
3665 if phase == DispatchPhase::Bubble {
3666 editor.update(cx, |editor, cx| {
3667 if event.pressed_button == Some(MouseButton::Left)
3668 || event.pressed_button == Some(MouseButton::Middle)
3669 {
3670 Self::mouse_dragged(
3671 editor,
3672 event,
3673 &position_map,
3674 text_hitbox.bounds,
3675 cx,
3676 )
3677 }
3678
3679 Self::mouse_moved(
3680 editor,
3681 event,
3682 &position_map,
3683 &text_hitbox,
3684 &gutter_hitbox,
3685 cx,
3686 )
3687 });
3688 }
3689 }
3690 });
3691 }
3692
3693 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
3694 bounds.upper_right().x - self.style.scrollbar_width
3695 }
3696
3697 fn column_pixels(&self, column: usize, cx: &WindowContext) -> Pixels {
3698 let style = &self.style;
3699 let font_size = style.text.font_size.to_pixels(cx.rem_size());
3700 let layout = cx
3701 .text_system()
3702 .shape_line(
3703 SharedString::from(" ".repeat(column)),
3704 font_size,
3705 &[TextRun {
3706 len: column,
3707 font: style.text.font(),
3708 color: Hsla::default(),
3709 background_color: None,
3710 underline: None,
3711 strikethrough: None,
3712 }],
3713 )
3714 .unwrap();
3715
3716 layout.width
3717 }
3718
3719 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &WindowContext) -> Pixels {
3720 let digit_count = snapshot
3721 .max_buffer_row()
3722 .next_row()
3723 .as_f32()
3724 .log10()
3725 .floor() as usize
3726 + 1;
3727 self.column_pixels(digit_count, cx)
3728 }
3729}
3730
3731fn prepaint_gutter_button(
3732 button: IconButton,
3733 row: DisplayRow,
3734 line_height: Pixels,
3735 gutter_dimensions: &GutterDimensions,
3736 scroll_pixel_position: gpui::Point<Pixels>,
3737 gutter_hitbox: &Hitbox,
3738 cx: &mut WindowContext<'_>,
3739) -> AnyElement {
3740 let mut button = button.into_any_element();
3741 let available_space = size(
3742 AvailableSpace::MinContent,
3743 AvailableSpace::Definite(line_height),
3744 );
3745 let indicator_size = button.layout_as_root(available_space, cx);
3746
3747 let blame_width = gutter_dimensions
3748 .git_blame_entries_width
3749 .unwrap_or(Pixels::ZERO);
3750
3751 let mut x = blame_width;
3752 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
3753 - indicator_size.width
3754 - blame_width;
3755 x += available_width / 2.;
3756
3757 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
3758 y += (line_height - indicator_size.height) / 2.;
3759
3760 button.prepaint_as_root(gutter_hitbox.origin + point(x, y), available_space, cx);
3761 button
3762}
3763
3764fn render_inline_blame_entry(
3765 blame: &gpui::Model<GitBlame>,
3766 blame_entry: BlameEntry,
3767 style: &EditorStyle,
3768 workspace: Option<WeakView<Workspace>>,
3769 cx: &mut WindowContext<'_>,
3770) -> AnyElement {
3771 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3772
3773 let author = blame_entry.author.as_deref().unwrap_or_default();
3774 let text = format!("{}, {}", author, relative_timestamp);
3775
3776 let details = blame.read(cx).details_for_entry(&blame_entry);
3777
3778 let tooltip = cx.new_view(|_| BlameEntryTooltip::new(blame_entry, details, style, workspace));
3779
3780 h_flex()
3781 .id("inline-blame")
3782 .w_full()
3783 .font_family(style.text.font().family)
3784 .text_color(cx.theme().status().hint)
3785 .line_height(style.text.line_height)
3786 .child(Icon::new(IconName::FileGit).color(Color::Hint))
3787 .child(text)
3788 .gap_2()
3789 .hoverable_tooltip(move |_| tooltip.clone().into())
3790 .into_any()
3791}
3792
3793fn render_blame_entry(
3794 ix: usize,
3795 blame: &gpui::Model<GitBlame>,
3796 blame_entry: BlameEntry,
3797 style: &EditorStyle,
3798 last_used_color: &mut Option<(PlayerColor, Oid)>,
3799 editor: View<Editor>,
3800 cx: &mut WindowContext<'_>,
3801) -> AnyElement {
3802 let mut sha_color = cx
3803 .theme()
3804 .players()
3805 .color_for_participant(blame_entry.sha.into());
3806 // If the last color we used is the same as the one we get for this line, but
3807 // the commit SHAs are different, then we try again to get a different color.
3808 match *last_used_color {
3809 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
3810 let index: u32 = blame_entry.sha.into();
3811 sha_color = cx.theme().players().color_for_participant(index + 1);
3812 }
3813 _ => {}
3814 };
3815 last_used_color.replace((sha_color, blame_entry.sha));
3816
3817 let relative_timestamp = blame_entry_relative_timestamp(&blame_entry, cx);
3818
3819 let short_commit_id = blame_entry.sha.display_short();
3820
3821 let author_name = blame_entry.author.as_deref().unwrap_or("<no name>");
3822 let name = util::truncate_and_trailoff(author_name, 20);
3823
3824 let details = blame.read(cx).details_for_entry(&blame_entry);
3825
3826 let workspace = editor.read(cx).workspace.as_ref().map(|(w, _)| w.clone());
3827
3828 let tooltip = cx.new_view(|_| {
3829 BlameEntryTooltip::new(blame_entry.clone(), details.clone(), style, workspace)
3830 });
3831
3832 h_flex()
3833 .w_full()
3834 .font_family(style.text.font().family)
3835 .line_height(style.text.line_height)
3836 .id(("blame", ix))
3837 .children([
3838 div()
3839 .text_color(sha_color.cursor)
3840 .child(short_commit_id)
3841 .mr_2(),
3842 div()
3843 .w_full()
3844 .h_flex()
3845 .justify_between()
3846 .text_color(cx.theme().status().hint)
3847 .child(name)
3848 .child(relative_timestamp),
3849 ])
3850 .on_mouse_down(MouseButton::Right, {
3851 let blame_entry = blame_entry.clone();
3852 let details = details.clone();
3853 move |event, cx| {
3854 deploy_blame_entry_context_menu(
3855 &blame_entry,
3856 details.as_ref(),
3857 editor.clone(),
3858 event.position,
3859 cx,
3860 );
3861 }
3862 })
3863 .hover(|style| style.bg(cx.theme().colors().element_hover))
3864 .when_some(
3865 details.and_then(|details| details.permalink),
3866 |this, url| {
3867 let url = url.clone();
3868 this.cursor_pointer().on_click(move |_, cx| {
3869 cx.stop_propagation();
3870 cx.open_url(url.as_str())
3871 })
3872 },
3873 )
3874 .hoverable_tooltip(move |_| tooltip.clone().into())
3875 .into_any()
3876}
3877
3878fn deploy_blame_entry_context_menu(
3879 blame_entry: &BlameEntry,
3880 details: Option<&CommitDetails>,
3881 editor: View<Editor>,
3882 position: gpui::Point<Pixels>,
3883 cx: &mut WindowContext<'_>,
3884) {
3885 let context_menu = ContextMenu::build(cx, move |this, _| {
3886 let sha = format!("{}", blame_entry.sha);
3887 this.entry("Copy commit SHA", None, move |cx| {
3888 cx.write_to_clipboard(ClipboardItem::new(sha.clone()));
3889 })
3890 .when_some(
3891 details.and_then(|details| details.permalink.clone()),
3892 |this, url| this.entry("Open permalink", None, move |cx| cx.open_url(url.as_str())),
3893 )
3894 });
3895
3896 editor.update(cx, move |editor, cx| {
3897 editor.mouse_context_menu = Some(MouseContextMenu::new(position, context_menu, cx));
3898 cx.notify();
3899 });
3900}
3901
3902#[derive(Debug)]
3903pub(crate) struct LineWithInvisibles {
3904 fragments: SmallVec<[LineFragment; 1]>,
3905 invisibles: Vec<Invisible>,
3906 len: usize,
3907 width: Pixels,
3908 font_size: Pixels,
3909}
3910
3911#[allow(clippy::large_enum_variant)]
3912enum LineFragment {
3913 Text(ShapedLine),
3914 Element {
3915 element: Option<AnyElement>,
3916 size: Size<Pixels>,
3917 len: usize,
3918 },
3919}
3920
3921impl fmt::Debug for LineFragment {
3922 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
3923 match self {
3924 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
3925 LineFragment::Element { size, len, .. } => f
3926 .debug_struct("Element")
3927 .field("size", size)
3928 .field("len", len)
3929 .finish(),
3930 }
3931 }
3932}
3933
3934impl LineWithInvisibles {
3935 fn from_chunks<'a>(
3936 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
3937 text_style: &TextStyle,
3938 max_line_len: usize,
3939 max_line_count: usize,
3940 line_number_layouts: &[Option<ShapedLine>],
3941 editor_mode: EditorMode,
3942 cx: &mut WindowContext,
3943 ) -> Vec<Self> {
3944 let mut layouts = Vec::with_capacity(max_line_count);
3945 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
3946 let mut line = String::new();
3947 let mut invisibles = Vec::new();
3948 let mut width = Pixels::ZERO;
3949 let mut len = 0;
3950 let mut styles = Vec::new();
3951 let mut non_whitespace_added = false;
3952 let mut row = 0;
3953 let mut line_exceeded_max_len = false;
3954 let font_size = text_style.font_size.to_pixels(cx.rem_size());
3955
3956 let ellipsis = SharedString::from("⋯");
3957
3958 for highlighted_chunk in chunks.chain([HighlightedChunk {
3959 text: "\n",
3960 style: None,
3961 is_tab: false,
3962 renderer: None,
3963 }]) {
3964 if let Some(renderer) = highlighted_chunk.renderer {
3965 if !line.is_empty() {
3966 let shaped_line = cx
3967 .text_system()
3968 .shape_line(line.clone().into(), font_size, &styles)
3969 .unwrap();
3970 width += shaped_line.width;
3971 len += shaped_line.len;
3972 fragments.push(LineFragment::Text(shaped_line));
3973 line.clear();
3974 styles.clear();
3975 }
3976
3977 let available_width = if renderer.constrain_width {
3978 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
3979 ellipsis.clone()
3980 } else {
3981 SharedString::from(Arc::from(highlighted_chunk.text))
3982 };
3983 let shaped_line = cx
3984 .text_system()
3985 .shape_line(
3986 chunk,
3987 font_size,
3988 &[text_style.to_run(highlighted_chunk.text.len())],
3989 )
3990 .unwrap();
3991 AvailableSpace::Definite(shaped_line.width)
3992 } else {
3993 AvailableSpace::MinContent
3994 };
3995
3996 let mut element = (renderer.render)(cx);
3997 let line_height = text_style.line_height_in_pixels(cx.rem_size());
3998 let size = element.layout_as_root(
3999 size(available_width, AvailableSpace::Definite(line_height)),
4000 cx,
4001 );
4002
4003 width += size.width;
4004 len += highlighted_chunk.text.len();
4005 fragments.push(LineFragment::Element {
4006 element: Some(element),
4007 size,
4008 len: highlighted_chunk.text.len(),
4009 });
4010 } else {
4011 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
4012 if ix > 0 {
4013 let shaped_line = cx
4014 .text_system()
4015 .shape_line(line.clone().into(), font_size, &styles)
4016 .unwrap();
4017 width += shaped_line.width;
4018 len += shaped_line.len;
4019 fragments.push(LineFragment::Text(shaped_line));
4020 layouts.push(Self {
4021 width: mem::take(&mut width),
4022 len: mem::take(&mut len),
4023 fragments: mem::take(&mut fragments),
4024 invisibles: std::mem::take(&mut invisibles),
4025 font_size,
4026 });
4027
4028 line.clear();
4029 styles.clear();
4030 row += 1;
4031 line_exceeded_max_len = false;
4032 non_whitespace_added = false;
4033 if row == max_line_count {
4034 return layouts;
4035 }
4036 }
4037
4038 if !line_chunk.is_empty() && !line_exceeded_max_len {
4039 let text_style = if let Some(style) = highlighted_chunk.style {
4040 Cow::Owned(text_style.clone().highlight(style))
4041 } else {
4042 Cow::Borrowed(text_style)
4043 };
4044
4045 if line.len() + line_chunk.len() > max_line_len {
4046 let mut chunk_len = max_line_len - line.len();
4047 while !line_chunk.is_char_boundary(chunk_len) {
4048 chunk_len -= 1;
4049 }
4050 line_chunk = &line_chunk[..chunk_len];
4051 line_exceeded_max_len = true;
4052 }
4053
4054 styles.push(TextRun {
4055 len: line_chunk.len(),
4056 font: text_style.font(),
4057 color: text_style.color,
4058 background_color: text_style.background_color,
4059 underline: text_style.underline,
4060 strikethrough: text_style.strikethrough,
4061 });
4062
4063 if editor_mode == EditorMode::Full {
4064 // Line wrap pads its contents with fake whitespaces,
4065 // avoid printing them
4066 let inside_wrapped_string = line_number_layouts
4067 .get(row)
4068 .and_then(|layout| layout.as_ref())
4069 .is_none();
4070 if highlighted_chunk.is_tab {
4071 if non_whitespace_added || !inside_wrapped_string {
4072 invisibles.push(Invisible::Tab {
4073 line_start_offset: line.len(),
4074 });
4075 }
4076 } else {
4077 invisibles.extend(
4078 line_chunk
4079 .bytes()
4080 .enumerate()
4081 .filter(|(_, line_byte)| {
4082 let is_whitespace =
4083 (*line_byte as char).is_whitespace();
4084 non_whitespace_added |= !is_whitespace;
4085 is_whitespace
4086 && (non_whitespace_added || !inside_wrapped_string)
4087 })
4088 .map(|(whitespace_index, _)| Invisible::Whitespace {
4089 line_offset: line.len() + whitespace_index,
4090 }),
4091 )
4092 }
4093 }
4094
4095 line.push_str(line_chunk);
4096 }
4097 }
4098 }
4099 }
4100
4101 layouts
4102 }
4103
4104 fn prepaint(
4105 &mut self,
4106 line_height: Pixels,
4107 scroll_pixel_position: gpui::Point<Pixels>,
4108 row: DisplayRow,
4109 content_origin: gpui::Point<Pixels>,
4110 line_elements: &mut SmallVec<[AnyElement; 1]>,
4111 cx: &mut WindowContext,
4112 ) {
4113 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
4114 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
4115 for fragment in &mut self.fragments {
4116 match fragment {
4117 LineFragment::Text(line) => {
4118 fragment_origin.x += line.width;
4119 }
4120 LineFragment::Element { element, size, .. } => {
4121 let mut element = element
4122 .take()
4123 .expect("you can't prepaint LineWithInvisibles twice");
4124
4125 // Center the element vertically within the line.
4126 let mut element_origin = fragment_origin;
4127 element_origin.y += (line_height - size.height) / 2.;
4128 element.prepaint_at(element_origin, cx);
4129 line_elements.push(element);
4130
4131 fragment_origin.x += size.width;
4132 }
4133 }
4134 }
4135 }
4136
4137 fn draw(
4138 &self,
4139 layout: &EditorLayout,
4140 row: DisplayRow,
4141 content_origin: gpui::Point<Pixels>,
4142 whitespace_setting: ShowWhitespaceSetting,
4143 selection_ranges: &[Range<DisplayPoint>],
4144 cx: &mut WindowContext,
4145 ) {
4146 let line_height = layout.position_map.line_height;
4147 let line_y = line_height
4148 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
4149
4150 let mut fragment_origin =
4151 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
4152
4153 for fragment in &self.fragments {
4154 match fragment {
4155 LineFragment::Text(line) => {
4156 line.paint(fragment_origin, line_height, cx).log_err();
4157 fragment_origin.x += line.width;
4158 }
4159 LineFragment::Element { size, .. } => {
4160 fragment_origin.x += size.width;
4161 }
4162 }
4163 }
4164
4165 self.draw_invisibles(
4166 &selection_ranges,
4167 layout,
4168 content_origin,
4169 line_y,
4170 row,
4171 line_height,
4172 whitespace_setting,
4173 cx,
4174 );
4175 }
4176
4177 #[allow(clippy::too_many_arguments)]
4178 fn draw_invisibles(
4179 &self,
4180 selection_ranges: &[Range<DisplayPoint>],
4181 layout: &EditorLayout,
4182 content_origin: gpui::Point<Pixels>,
4183 line_y: Pixels,
4184 row: DisplayRow,
4185 line_height: Pixels,
4186 whitespace_setting: ShowWhitespaceSetting,
4187 cx: &mut WindowContext,
4188 ) {
4189 let allowed_invisibles_regions = match whitespace_setting {
4190 ShowWhitespaceSetting::None => return,
4191 ShowWhitespaceSetting::Selection => Some(selection_ranges),
4192 ShowWhitespaceSetting::All => None,
4193 };
4194
4195 for invisible in &self.invisibles {
4196 let (&token_offset, invisible_symbol) = match invisible {
4197 Invisible::Tab { line_start_offset } => (line_start_offset, &layout.tab_invisible),
4198 Invisible::Whitespace { line_offset } => (line_offset, &layout.space_invisible),
4199 };
4200
4201 let x_offset = self.x_for_index(token_offset);
4202 let invisible_offset =
4203 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
4204 let origin = content_origin
4205 + gpui::point(
4206 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
4207 line_y,
4208 );
4209
4210 if let Some(allowed_regions) = allowed_invisibles_regions {
4211 let invisible_point = DisplayPoint::new(row, token_offset as u32);
4212 if !allowed_regions
4213 .iter()
4214 .any(|region| region.start <= invisible_point && invisible_point < region.end)
4215 {
4216 continue;
4217 }
4218 }
4219 invisible_symbol.paint(origin, line_height, cx).log_err();
4220 }
4221 }
4222
4223 pub fn x_for_index(&self, index: usize) -> Pixels {
4224 let mut fragment_start_x = Pixels::ZERO;
4225 let mut fragment_start_index = 0;
4226
4227 for fragment in &self.fragments {
4228 match fragment {
4229 LineFragment::Text(shaped_line) => {
4230 let fragment_end_index = fragment_start_index + shaped_line.len;
4231 if index < fragment_end_index {
4232 return fragment_start_x
4233 + shaped_line.x_for_index(index - fragment_start_index);
4234 }
4235 fragment_start_x += shaped_line.width;
4236 fragment_start_index = fragment_end_index;
4237 }
4238 LineFragment::Element { len, size, .. } => {
4239 let fragment_end_index = fragment_start_index + len;
4240 if index < fragment_end_index {
4241 return fragment_start_x;
4242 }
4243 fragment_start_x += size.width;
4244 fragment_start_index = fragment_end_index;
4245 }
4246 }
4247 }
4248
4249 fragment_start_x
4250 }
4251
4252 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
4253 let mut fragment_start_x = Pixels::ZERO;
4254 let mut fragment_start_index = 0;
4255
4256 for fragment in &self.fragments {
4257 match fragment {
4258 LineFragment::Text(shaped_line) => {
4259 let fragment_end_x = fragment_start_x + shaped_line.width;
4260 if x < fragment_end_x {
4261 return Some(
4262 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
4263 );
4264 }
4265 fragment_start_x = fragment_end_x;
4266 fragment_start_index += shaped_line.len;
4267 }
4268 LineFragment::Element { len, size, .. } => {
4269 let fragment_end_x = fragment_start_x + size.width;
4270 if x < fragment_end_x {
4271 return Some(fragment_start_index);
4272 }
4273 fragment_start_index += len;
4274 fragment_start_x = fragment_end_x;
4275 }
4276 }
4277 }
4278
4279 None
4280 }
4281
4282 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
4283 let mut fragment_start_index = 0;
4284
4285 for fragment in &self.fragments {
4286 match fragment {
4287 LineFragment::Text(shaped_line) => {
4288 let fragment_end_index = fragment_start_index + shaped_line.len;
4289 if index < fragment_end_index {
4290 return shaped_line.font_id_for_index(index - fragment_start_index);
4291 }
4292 fragment_start_index = fragment_end_index;
4293 }
4294 LineFragment::Element { len, .. } => {
4295 let fragment_end_index = fragment_start_index + len;
4296 if index < fragment_end_index {
4297 return None;
4298 }
4299 fragment_start_index = fragment_end_index;
4300 }
4301 }
4302 }
4303
4304 None
4305 }
4306}
4307
4308#[derive(Debug, Clone, Copy, PartialEq, Eq)]
4309enum Invisible {
4310 Tab { line_start_offset: usize },
4311 Whitespace { line_offset: usize },
4312}
4313
4314impl EditorElement {
4315 /// Returns the rem size to use when rendering the [`EditorElement`].
4316 ///
4317 /// This allows UI elements to scale based on the `buffer_font_size`.
4318 fn rem_size(&self, cx: &WindowContext) -> Option<Pixels> {
4319 match self.editor.read(cx).mode {
4320 EditorMode::Full => {
4321 let buffer_font_size = self.style.text.font_size;
4322 match buffer_font_size {
4323 AbsoluteLength::Pixels(pixels) => {
4324 let rem_size_scale = {
4325 // Our default UI font size is 14px on a 16px base scale.
4326 // This means the default UI font size is 0.875rems.
4327 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
4328
4329 // We then determine the delta between a single rem and the default font
4330 // size scale.
4331 let default_font_size_delta = 1. - default_font_size_scale;
4332
4333 // Finally, we add this delta to 1rem to get the scale factor that
4334 // should be used to scale up the UI.
4335 1. + default_font_size_delta
4336 };
4337
4338 Some(pixels * rem_size_scale)
4339 }
4340 AbsoluteLength::Rems(rems) => {
4341 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
4342 }
4343 }
4344 }
4345 // We currently use single-line and auto-height editors in UI contexts,
4346 // so we don't want to scale everything with the buffer font size, as it
4347 // ends up looking off.
4348 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => None,
4349 }
4350 }
4351}
4352
4353impl Element for EditorElement {
4354 type RequestLayoutState = ();
4355 type PrepaintState = EditorLayout;
4356
4357 fn id(&self) -> Option<ElementId> {
4358 None
4359 }
4360
4361 fn request_layout(
4362 &mut self,
4363 _: Option<&GlobalElementId>,
4364 cx: &mut WindowContext,
4365 ) -> (gpui::LayoutId, ()) {
4366 let rem_size = self.rem_size(cx);
4367 cx.with_rem_size(rem_size, |cx| {
4368 self.editor.update(cx, |editor, cx| {
4369 editor.set_style(self.style.clone(), cx);
4370
4371 let layout_id = match editor.mode {
4372 EditorMode::SingleLine => {
4373 let rem_size = cx.rem_size();
4374 let mut style = Style::default();
4375 style.size.width = relative(1.).into();
4376 style.size.height = self.style.text.line_height_in_pixels(rem_size).into();
4377 cx.request_layout(style, None)
4378 }
4379 EditorMode::AutoHeight { max_lines } => {
4380 let editor_handle = cx.view().clone();
4381 let max_line_number_width =
4382 self.max_line_number_width(&editor.snapshot(cx), cx);
4383 cx.request_measured_layout(
4384 Style::default(),
4385 move |known_dimensions, available_space, cx| {
4386 editor_handle
4387 .update(cx, |editor, cx| {
4388 compute_auto_height_layout(
4389 editor,
4390 max_lines,
4391 max_line_number_width,
4392 known_dimensions,
4393 available_space.width,
4394 cx,
4395 )
4396 })
4397 .unwrap_or_default()
4398 },
4399 )
4400 }
4401 EditorMode::Full => {
4402 let mut style = Style::default();
4403 style.size.width = relative(1.).into();
4404 style.size.height = relative(1.).into();
4405 cx.request_layout(style, None)
4406 }
4407 };
4408
4409 (layout_id, ())
4410 })
4411 })
4412 }
4413
4414 fn prepaint(
4415 &mut self,
4416 _: Option<&GlobalElementId>,
4417 bounds: Bounds<Pixels>,
4418 _: &mut Self::RequestLayoutState,
4419 cx: &mut WindowContext,
4420 ) -> Self::PrepaintState {
4421 let text_style = TextStyleRefinement {
4422 font_size: Some(self.style.text.font_size),
4423 line_height: Some(self.style.text.line_height),
4424 ..Default::default()
4425 };
4426 cx.set_view_id(self.editor.entity_id());
4427
4428 let rem_size = self.rem_size(cx);
4429 cx.with_rem_size(rem_size, |cx| {
4430 cx.with_text_style(Some(text_style), |cx| {
4431 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
4432 let mut snapshot = self.editor.update(cx, |editor, cx| editor.snapshot(cx));
4433 let style = self.style.clone();
4434
4435 let font_id = cx.text_system().resolve_font(&style.text.font());
4436 let font_size = style.text.font_size.to_pixels(cx.rem_size());
4437 let line_height = style.text.line_height_in_pixels(cx.rem_size());
4438 let em_width = cx
4439 .text_system()
4440 .typographic_bounds(font_id, font_size, 'm')
4441 .unwrap()
4442 .size
4443 .width;
4444 let em_advance = cx
4445 .text_system()
4446 .advance(font_id, font_size, 'm')
4447 .unwrap()
4448 .width;
4449
4450 let gutter_dimensions = snapshot.gutter_dimensions(
4451 font_id,
4452 font_size,
4453 em_width,
4454 self.max_line_number_width(&snapshot, cx),
4455 cx,
4456 );
4457 let text_width = bounds.size.width - gutter_dimensions.width;
4458
4459 let right_margin = if snapshot.mode == EditorMode::Full {
4460 EditorElement::SCROLLBAR_WIDTH
4461 } else {
4462 px(0.)
4463 };
4464 let overscroll = size(em_width + right_margin, px(0.));
4465
4466 snapshot = self.editor.update(cx, |editor, cx| {
4467 editor.last_bounds = Some(bounds);
4468 editor.gutter_dimensions = gutter_dimensions;
4469 editor.set_visible_line_count(bounds.size.height / line_height, cx);
4470
4471 let editor_width =
4472 text_width - gutter_dimensions.margin - overscroll.width - em_width;
4473 let wrap_width = match editor.soft_wrap_mode(cx) {
4474 SoftWrap::None => None,
4475 SoftWrap::PreferLine => Some((MAX_LINE_LEN / 2) as f32 * em_advance),
4476 SoftWrap::EditorWidth => Some(editor_width),
4477 SoftWrap::Column(column) => {
4478 Some(editor_width.min(column as f32 * em_advance))
4479 }
4480 };
4481
4482 if editor.set_wrap_width(wrap_width, cx) {
4483 editor.snapshot(cx)
4484 } else {
4485 snapshot
4486 }
4487 });
4488
4489 let wrap_guides = self
4490 .editor
4491 .read(cx)
4492 .wrap_guides(cx)
4493 .iter()
4494 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
4495 .collect::<SmallVec<[_; 2]>>();
4496
4497 let hitbox = cx.insert_hitbox(bounds, false);
4498 let gutter_hitbox = cx.insert_hitbox(
4499 Bounds {
4500 origin: bounds.origin,
4501 size: size(gutter_dimensions.width, bounds.size.height),
4502 },
4503 false,
4504 );
4505 let text_hitbox = cx.insert_hitbox(
4506 Bounds {
4507 origin: gutter_hitbox.upper_right(),
4508 size: size(text_width, bounds.size.height),
4509 },
4510 false,
4511 );
4512 // Offset the content_bounds from the text_bounds by the gutter margin (which
4513 // is roughly half a character wide) to make hit testing work more like how we want.
4514 let content_origin =
4515 text_hitbox.origin + point(gutter_dimensions.margin, Pixels::ZERO);
4516
4517 let mut autoscroll_containing_element = false;
4518 let mut autoscroll_horizontally = false;
4519 self.editor.update(cx, |editor, cx| {
4520 autoscroll_containing_element =
4521 editor.autoscroll_requested() || editor.has_pending_selection();
4522 autoscroll_horizontally =
4523 editor.autoscroll_vertically(bounds, line_height, cx);
4524 snapshot = editor.snapshot(cx);
4525 });
4526
4527 let mut scroll_position = snapshot.scroll_position();
4528 // The scroll position is a fractional point, the whole number of which represents
4529 // the top of the window in terms of display rows.
4530 let start_row = DisplayRow(scroll_position.y as u32);
4531 let height_in_lines = bounds.size.height / line_height;
4532 let max_row = snapshot.max_point().row();
4533 let end_row = cmp::min(
4534 (scroll_position.y + height_in_lines).ceil() as u32,
4535 max_row.next_row().0,
4536 );
4537 let end_row = DisplayRow(end_row);
4538
4539 let buffer_rows = snapshot
4540 .buffer_rows(start_row)
4541 .take((start_row..end_row).len())
4542 .collect::<Vec<_>>();
4543
4544 let start_anchor = if start_row == Default::default() {
4545 Anchor::min()
4546 } else {
4547 snapshot.buffer_snapshot.anchor_before(
4548 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
4549 )
4550 };
4551 let end_anchor = if end_row > max_row {
4552 Anchor::max()
4553 } else {
4554 snapshot.buffer_snapshot.anchor_before(
4555 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
4556 )
4557 };
4558
4559 let highlighted_rows = self
4560 .editor
4561 .update(cx, |editor, cx| editor.highlighted_display_rows(cx));
4562 let highlighted_ranges = self.editor.read(cx).background_highlights_in_range(
4563 start_anchor..end_anchor,
4564 &snapshot.display_snapshot,
4565 cx.theme().colors(),
4566 );
4567
4568 let redacted_ranges = self.editor.read(cx).redacted_ranges(
4569 start_anchor..end_anchor,
4570 &snapshot.display_snapshot,
4571 cx,
4572 );
4573
4574 let (selections, active_rows, newest_selection_head) = self.layout_selections(
4575 start_anchor,
4576 end_anchor,
4577 &snapshot,
4578 start_row,
4579 end_row,
4580 cx,
4581 );
4582
4583 let line_numbers = self.layout_line_numbers(
4584 start_row..end_row,
4585 buffer_rows.iter().copied(),
4586 &active_rows,
4587 newest_selection_head,
4588 &snapshot,
4589 cx,
4590 );
4591
4592 let mut gutter_fold_toggles =
4593 cx.with_element_namespace("gutter_fold_toggles", |cx| {
4594 self.layout_gutter_fold_toggles(
4595 start_row..end_row,
4596 buffer_rows.iter().copied(),
4597 &active_rows,
4598 &snapshot,
4599 cx,
4600 )
4601 });
4602 let flap_trailers = cx.with_element_namespace("flap_trailers", |cx| {
4603 self.layout_flap_trailers(buffer_rows.iter().copied(), &snapshot, cx)
4604 });
4605
4606 let display_hunks = self.layout_git_gutters(
4607 line_height,
4608 &gutter_hitbox,
4609 start_row..end_row,
4610 &snapshot,
4611 cx,
4612 );
4613
4614 let mut max_visible_line_width = Pixels::ZERO;
4615 let mut line_layouts =
4616 self.layout_lines(start_row..end_row, &line_numbers, &snapshot, cx);
4617 for line_with_invisibles in &line_layouts {
4618 if line_with_invisibles.width > max_visible_line_width {
4619 max_visible_line_width = line_with_invisibles.width;
4620 }
4621 }
4622
4623 let longest_line_width =
4624 layout_line(snapshot.longest_row(), &snapshot, &style, cx).width;
4625 let mut scroll_width =
4626 longest_line_width.max(max_visible_line_width) + overscroll.width;
4627
4628 let mut blocks = cx.with_element_namespace("blocks", |cx| {
4629 self.build_blocks(
4630 start_row..end_row,
4631 &snapshot,
4632 &hitbox,
4633 &text_hitbox,
4634 &mut scroll_width,
4635 &gutter_dimensions,
4636 em_width,
4637 gutter_dimensions.full_width(),
4638 line_height,
4639 &line_layouts,
4640 cx,
4641 )
4642 });
4643
4644 let scroll_pixel_position = point(
4645 scroll_position.x * em_width,
4646 scroll_position.y * line_height,
4647 );
4648
4649 let start_buffer_row =
4650 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
4651 let end_buffer_row =
4652 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
4653
4654 let indent_guides = self.layout_indent_guides(
4655 content_origin,
4656 text_hitbox.origin,
4657 start_buffer_row..end_buffer_row,
4658 scroll_pixel_position,
4659 line_height,
4660 &snapshot,
4661 cx,
4662 );
4663
4664 let flap_trailers = cx.with_element_namespace("flap_trailers", |cx| {
4665 self.prepaint_flap_trailers(
4666 flap_trailers,
4667 &line_layouts,
4668 line_height,
4669 content_origin,
4670 scroll_pixel_position,
4671 em_width,
4672 cx,
4673 )
4674 });
4675
4676 let mut inline_blame = None;
4677 if let Some(newest_selection_head) = newest_selection_head {
4678 let display_row = newest_selection_head.row();
4679 if (start_row..end_row).contains(&display_row) {
4680 let line_ix = display_row.minus(start_row) as usize;
4681 let line_layout = &line_layouts[line_ix];
4682 let flap_trailer_layout = flap_trailers[line_ix].as_ref();
4683 inline_blame = self.layout_inline_blame(
4684 display_row,
4685 &snapshot.display_snapshot,
4686 line_layout,
4687 flap_trailer_layout,
4688 em_width,
4689 content_origin,
4690 scroll_pixel_position,
4691 line_height,
4692 cx,
4693 );
4694 }
4695 }
4696
4697 let blamed_display_rows = self.layout_blame_entries(
4698 buffer_rows.into_iter(),
4699 em_width,
4700 scroll_position,
4701 line_height,
4702 &gutter_hitbox,
4703 gutter_dimensions.git_blame_entries_width,
4704 cx,
4705 );
4706
4707 let scroll_max = point(
4708 ((scroll_width - text_hitbox.size.width) / em_width).max(0.0),
4709 max_row.as_f32(),
4710 );
4711
4712 self.editor.update(cx, |editor, cx| {
4713 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
4714
4715 let autoscrolled = if autoscroll_horizontally {
4716 editor.autoscroll_horizontally(
4717 start_row,
4718 text_hitbox.size.width,
4719 scroll_width,
4720 em_width,
4721 &line_layouts,
4722 cx,
4723 )
4724 } else {
4725 false
4726 };
4727
4728 if clamped || autoscrolled {
4729 snapshot = editor.snapshot(cx);
4730 scroll_position = snapshot.scroll_position();
4731 }
4732 });
4733
4734 let line_elements = self.prepaint_lines(
4735 start_row,
4736 &mut line_layouts,
4737 line_height,
4738 scroll_pixel_position,
4739 content_origin,
4740 cx,
4741 );
4742
4743 cx.with_element_namespace("blocks", |cx| {
4744 self.layout_blocks(
4745 &mut blocks,
4746 &hitbox,
4747 line_height,
4748 scroll_pixel_position,
4749 cx,
4750 );
4751 });
4752
4753 let cursors = self.collect_cursors(&snapshot, cx);
4754 let visible_row_range = start_row..end_row;
4755 let non_visible_cursors = cursors
4756 .iter()
4757 .any(move |c| !visible_row_range.contains(&c.0.row()));
4758
4759 let visible_cursors = self.layout_visible_cursors(
4760 &snapshot,
4761 &selections,
4762 start_row..end_row,
4763 &line_layouts,
4764 &text_hitbox,
4765 content_origin,
4766 scroll_position,
4767 scroll_pixel_position,
4768 line_height,
4769 em_width,
4770 autoscroll_containing_element,
4771 cx,
4772 );
4773
4774 let scrollbar_layout = self.layout_scrollbar(
4775 &snapshot,
4776 bounds,
4777 scroll_position,
4778 height_in_lines,
4779 non_visible_cursors,
4780 cx,
4781 );
4782
4783 let gutter_settings = EditorSettings::get_global(cx).gutter;
4784
4785 let mut _context_menu_visible = false;
4786 let mut code_actions_indicator = None;
4787 if let Some(newest_selection_head) = newest_selection_head {
4788 if (start_row..end_row).contains(&newest_selection_head.row()) {
4789 _context_menu_visible = self.layout_context_menu(
4790 line_height,
4791 &hitbox,
4792 &text_hitbox,
4793 content_origin,
4794 start_row,
4795 scroll_pixel_position,
4796 &line_layouts,
4797 newest_selection_head,
4798 gutter_dimensions.width - gutter_dimensions.left_padding,
4799 cx,
4800 );
4801
4802 let show_code_actions = snapshot
4803 .show_code_actions
4804 .unwrap_or_else(|| gutter_settings.code_actions);
4805 if show_code_actions {
4806 let newest_selection_point =
4807 newest_selection_head.to_point(&snapshot.display_snapshot);
4808 let buffer = snapshot.buffer_snapshot.buffer_line_for_row(
4809 MultiBufferRow(newest_selection_point.row),
4810 );
4811 if let Some((buffer, range)) = buffer {
4812 let buffer_id = buffer.remote_id();
4813 let row = range.start.row;
4814 let has_test_indicator =
4815 self.editor.read(cx).tasks.contains_key(&(buffer_id, row));
4816
4817 if !has_test_indicator {
4818 code_actions_indicator = self
4819 .layout_code_actions_indicator(
4820 line_height,
4821 newest_selection_head,
4822 scroll_pixel_position,
4823 &gutter_dimensions,
4824 &gutter_hitbox,
4825 cx,
4826 );
4827 }
4828 }
4829 }
4830 }
4831 }
4832
4833 let test_indicators = self.layout_run_indicators(
4834 line_height,
4835 scroll_pixel_position,
4836 &gutter_dimensions,
4837 &gutter_hitbox,
4838 &snapshot,
4839 cx,
4840 );
4841
4842 if !cx.has_active_drag() {
4843 self.layout_hover_popovers(
4844 &snapshot,
4845 &hitbox,
4846 &text_hitbox,
4847 start_row..end_row,
4848 content_origin,
4849 scroll_pixel_position,
4850 &line_layouts,
4851 line_height,
4852 em_width,
4853 cx,
4854 );
4855 }
4856
4857 let mouse_context_menu = self.layout_mouse_context_menu(cx);
4858
4859 cx.with_element_namespace("gutter_fold_toggles", |cx| {
4860 self.prepaint_gutter_fold_toggles(
4861 &mut gutter_fold_toggles,
4862 line_height,
4863 &gutter_dimensions,
4864 gutter_settings,
4865 scroll_pixel_position,
4866 &gutter_hitbox,
4867 cx,
4868 )
4869 });
4870
4871 let invisible_symbol_font_size = font_size / 2.;
4872 let tab_invisible = cx
4873 .text_system()
4874 .shape_line(
4875 "→".into(),
4876 invisible_symbol_font_size,
4877 &[TextRun {
4878 len: "→".len(),
4879 font: self.style.text.font(),
4880 color: cx.theme().colors().editor_invisible,
4881 background_color: None,
4882 underline: None,
4883 strikethrough: None,
4884 }],
4885 )
4886 .unwrap();
4887 let space_invisible = cx
4888 .text_system()
4889 .shape_line(
4890 "•".into(),
4891 invisible_symbol_font_size,
4892 &[TextRun {
4893 len: "•".len(),
4894 font: self.style.text.font(),
4895 color: cx.theme().colors().editor_invisible,
4896 background_color: None,
4897 underline: None,
4898 strikethrough: None,
4899 }],
4900 )
4901 .unwrap();
4902
4903 EditorLayout {
4904 mode: snapshot.mode,
4905 position_map: Arc::new(PositionMap {
4906 size: bounds.size,
4907 scroll_pixel_position,
4908 scroll_max,
4909 line_layouts,
4910 line_height,
4911 em_width,
4912 em_advance,
4913 snapshot,
4914 }),
4915 visible_display_row_range: start_row..end_row,
4916 wrap_guides,
4917 indent_guides,
4918 hitbox,
4919 text_hitbox,
4920 gutter_hitbox,
4921 gutter_dimensions,
4922 content_origin,
4923 scrollbar_layout,
4924 active_rows,
4925 highlighted_rows,
4926 highlighted_ranges,
4927 redacted_ranges,
4928 line_elements,
4929 line_numbers,
4930 display_hunks,
4931 blamed_display_rows,
4932 inline_blame,
4933 blocks,
4934 cursors,
4935 visible_cursors,
4936 selections,
4937 mouse_context_menu,
4938 test_indicators,
4939 code_actions_indicator,
4940 gutter_fold_toggles,
4941 flap_trailers,
4942 tab_invisible,
4943 space_invisible,
4944 }
4945 })
4946 })
4947 })
4948 }
4949
4950 fn paint(
4951 &mut self,
4952 _: Option<&GlobalElementId>,
4953 bounds: Bounds<gpui::Pixels>,
4954 _: &mut Self::RequestLayoutState,
4955 layout: &mut Self::PrepaintState,
4956 cx: &mut WindowContext,
4957 ) {
4958 let focus_handle = self.editor.focus_handle(cx);
4959 let key_context = self.editor.read(cx).key_context(cx);
4960 cx.set_focus_handle(&focus_handle);
4961 cx.set_key_context(key_context);
4962 cx.handle_input(
4963 &focus_handle,
4964 ElementInputHandler::new(bounds, self.editor.clone()),
4965 );
4966 self.register_actions(cx);
4967 self.register_key_listeners(cx, layout);
4968
4969 let text_style = TextStyleRefinement {
4970 font_size: Some(self.style.text.font_size),
4971 line_height: Some(self.style.text.line_height),
4972 ..Default::default()
4973 };
4974 let mouse_position = cx.mouse_position();
4975 let hovered_hunk = layout
4976 .display_hunks
4977 .iter()
4978 .find_map(|(hunk, hunk_hitbox)| match hunk {
4979 DisplayDiffHunk::Folded { .. } => None,
4980 DisplayDiffHunk::Unfolded {
4981 diff_base_byte_range,
4982 multi_buffer_range,
4983 status,
4984 ..
4985 } => {
4986 if hunk_hitbox
4987 .as_ref()
4988 .map(|hitbox| hitbox.contains(&mouse_position))
4989 .unwrap_or(false)
4990 {
4991 Some(HunkToExpand {
4992 status: *status,
4993 multi_buffer_range: multi_buffer_range.clone(),
4994 diff_base_byte_range: diff_base_byte_range.clone(),
4995 })
4996 } else {
4997 None
4998 }
4999 }
5000 });
5001 let rem_size = self.rem_size(cx);
5002 cx.with_rem_size(rem_size, |cx| {
5003 cx.with_text_style(Some(text_style), |cx| {
5004 cx.with_content_mask(Some(ContentMask { bounds }), |cx| {
5005 self.paint_mouse_listeners(layout, hovered_hunk, cx);
5006 self.paint_background(layout, cx);
5007 self.paint_indent_guides(layout, cx);
5008 if layout.gutter_hitbox.size.width > Pixels::ZERO {
5009 self.paint_gutter(layout, cx)
5010 }
5011
5012 self.paint_text(layout, cx);
5013
5014 if !layout.blocks.is_empty() {
5015 cx.with_element_namespace("blocks", |cx| {
5016 self.paint_blocks(layout, cx);
5017 });
5018 }
5019
5020 self.paint_scrollbar(layout, cx);
5021 self.paint_mouse_context_menu(layout, cx);
5022 });
5023 })
5024 })
5025 }
5026}
5027
5028impl IntoElement for EditorElement {
5029 type Element = Self;
5030
5031 fn into_element(self) -> Self::Element {
5032 self
5033 }
5034}
5035
5036pub struct EditorLayout {
5037 position_map: Arc<PositionMap>,
5038 hitbox: Hitbox,
5039 text_hitbox: Hitbox,
5040 gutter_hitbox: Hitbox,
5041 gutter_dimensions: GutterDimensions,
5042 content_origin: gpui::Point<Pixels>,
5043 scrollbar_layout: Option<ScrollbarLayout>,
5044 mode: EditorMode,
5045 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
5046 indent_guides: Option<Vec<IndentGuideLayout>>,
5047 visible_display_row_range: Range<DisplayRow>,
5048 active_rows: BTreeMap<DisplayRow, bool>,
5049 highlighted_rows: BTreeMap<DisplayRow, Hsla>,
5050 line_elements: SmallVec<[AnyElement; 1]>,
5051 line_numbers: Vec<Option<ShapedLine>>,
5052 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
5053 blamed_display_rows: Option<Vec<AnyElement>>,
5054 inline_blame: Option<AnyElement>,
5055 blocks: Vec<BlockLayout>,
5056 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
5057 redacted_ranges: Vec<Range<DisplayPoint>>,
5058 cursors: Vec<(DisplayPoint, Hsla)>,
5059 visible_cursors: Vec<CursorLayout>,
5060 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
5061 code_actions_indicator: Option<AnyElement>,
5062 test_indicators: Vec<AnyElement>,
5063 gutter_fold_toggles: Vec<Option<AnyElement>>,
5064 flap_trailers: Vec<Option<FlapTrailerLayout>>,
5065 mouse_context_menu: Option<AnyElement>,
5066 tab_invisible: ShapedLine,
5067 space_invisible: ShapedLine,
5068}
5069
5070impl EditorLayout {
5071 fn line_end_overshoot(&self) -> Pixels {
5072 0.15 * self.position_map.line_height
5073 }
5074}
5075
5076struct ColoredRange<T> {
5077 start: T,
5078 end: T,
5079 color: Hsla,
5080}
5081
5082#[derive(Clone)]
5083struct ScrollbarLayout {
5084 hitbox: Hitbox,
5085 visible_row_range: Range<f32>,
5086 visible: bool,
5087 row_height: Pixels,
5088 thumb_height: Pixels,
5089}
5090
5091impl ScrollbarLayout {
5092 const BORDER_WIDTH: Pixels = px(1.0);
5093 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
5094 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
5095 const MIN_THUMB_HEIGHT: Pixels = px(20.0);
5096
5097 fn thumb_bounds(&self) -> Bounds<Pixels> {
5098 let thumb_top = self.y_for_row(self.visible_row_range.start);
5099 let thumb_bottom = thumb_top + self.thumb_height;
5100 Bounds::from_corners(
5101 point(self.hitbox.left(), thumb_top),
5102 point(self.hitbox.right(), thumb_bottom),
5103 )
5104 }
5105
5106 fn y_for_row(&self, row: f32) -> Pixels {
5107 self.hitbox.top() + row * self.row_height
5108 }
5109
5110 fn marker_quads_for_ranges(
5111 &self,
5112 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
5113 column: Option<usize>,
5114 ) -> Vec<PaintQuad> {
5115 struct MinMax {
5116 min: Pixels,
5117 max: Pixels,
5118 }
5119 let (x_range, height_limit) = if let Some(column) = column {
5120 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
5121 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
5122 let end = start + column_width;
5123 (
5124 Range { start, end },
5125 MinMax {
5126 min: Self::MIN_MARKER_HEIGHT,
5127 max: px(f32::MAX),
5128 },
5129 )
5130 } else {
5131 (
5132 Range {
5133 start: Self::BORDER_WIDTH,
5134 end: self.hitbox.size.width,
5135 },
5136 MinMax {
5137 min: Self::LINE_MARKER_HEIGHT,
5138 max: Self::LINE_MARKER_HEIGHT,
5139 },
5140 )
5141 };
5142
5143 let row_to_y = |row: DisplayRow| row.as_f32() * self.row_height;
5144 let mut pixel_ranges = row_ranges
5145 .into_iter()
5146 .map(|range| {
5147 let start_y = row_to_y(range.start);
5148 let end_y = row_to_y(range.end)
5149 + self.row_height.max(height_limit.min).min(height_limit.max);
5150 ColoredRange {
5151 start: start_y,
5152 end: end_y,
5153 color: range.color,
5154 }
5155 })
5156 .peekable();
5157
5158 let mut quads = Vec::new();
5159 while let Some(mut pixel_range) = pixel_ranges.next() {
5160 while let Some(next_pixel_range) = pixel_ranges.peek() {
5161 if pixel_range.end >= next_pixel_range.start - px(1.0)
5162 && pixel_range.color == next_pixel_range.color
5163 {
5164 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
5165 pixel_ranges.next();
5166 } else {
5167 break;
5168 }
5169 }
5170
5171 let bounds = Bounds::from_corners(
5172 point(x_range.start, pixel_range.start),
5173 point(x_range.end, pixel_range.end),
5174 );
5175 quads.push(quad(
5176 bounds,
5177 Corners::default(),
5178 pixel_range.color,
5179 Edges::default(),
5180 Hsla::transparent_black(),
5181 ));
5182 }
5183
5184 quads
5185 }
5186}
5187
5188struct FlapTrailerLayout {
5189 element: AnyElement,
5190 bounds: Bounds<Pixels>,
5191}
5192
5193struct PositionMap {
5194 size: Size<Pixels>,
5195 line_height: Pixels,
5196 scroll_pixel_position: gpui::Point<Pixels>,
5197 scroll_max: gpui::Point<f32>,
5198 em_width: Pixels,
5199 em_advance: Pixels,
5200 line_layouts: Vec<LineWithInvisibles>,
5201 snapshot: EditorSnapshot,
5202}
5203
5204#[derive(Debug, Copy, Clone)]
5205pub struct PointForPosition {
5206 pub previous_valid: DisplayPoint,
5207 pub next_valid: DisplayPoint,
5208 pub exact_unclipped: DisplayPoint,
5209 pub column_overshoot_after_line_end: u32,
5210}
5211
5212impl PointForPosition {
5213 pub fn as_valid(&self) -> Option<DisplayPoint> {
5214 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
5215 Some(self.previous_valid)
5216 } else {
5217 None
5218 }
5219 }
5220}
5221
5222impl PositionMap {
5223 fn point_for_position(
5224 &self,
5225 text_bounds: Bounds<Pixels>,
5226 position: gpui::Point<Pixels>,
5227 ) -> PointForPosition {
5228 let scroll_position = self.snapshot.scroll_position();
5229 let position = position - text_bounds.origin;
5230 let y = position.y.max(px(0.)).min(self.size.height);
5231 let x = position.x + (scroll_position.x * self.em_width);
5232 let row = ((y / self.line_height) + scroll_position.y) as u32;
5233
5234 let (column, x_overshoot_after_line_end) = if let Some(line) = self
5235 .line_layouts
5236 .get(row as usize - scroll_position.y as usize)
5237 {
5238 if let Some(ix) = line.index_for_x(x) {
5239 (ix as u32, px(0.))
5240 } else {
5241 (line.len as u32, px(0.).max(x - line.width))
5242 }
5243 } else {
5244 (0, x)
5245 };
5246
5247 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
5248 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
5249 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
5250
5251 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
5252 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
5253 PointForPosition {
5254 previous_valid,
5255 next_valid,
5256 exact_unclipped,
5257 column_overshoot_after_line_end,
5258 }
5259 }
5260}
5261
5262struct BlockLayout {
5263 row: DisplayRow,
5264 element: AnyElement,
5265 available_space: Size<AvailableSpace>,
5266 style: BlockStyle,
5267}
5268
5269fn layout_line(
5270 row: DisplayRow,
5271 snapshot: &EditorSnapshot,
5272 style: &EditorStyle,
5273 cx: &mut WindowContext,
5274) -> LineWithInvisibles {
5275 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
5276 LineWithInvisibles::from_chunks(chunks, &style.text, MAX_LINE_LEN, 1, &[], snapshot.mode, cx)
5277 .pop()
5278 .unwrap()
5279}
5280
5281#[derive(Debug)]
5282pub struct IndentGuideLayout {
5283 origin: gpui::Point<Pixels>,
5284 length: Pixels,
5285 single_indent_width: Pixels,
5286 depth: u32,
5287 active: bool,
5288 settings: IndentGuideSettings,
5289}
5290
5291pub struct CursorLayout {
5292 origin: gpui::Point<Pixels>,
5293 block_width: Pixels,
5294 line_height: Pixels,
5295 color: Hsla,
5296 shape: CursorShape,
5297 block_text: Option<ShapedLine>,
5298 cursor_name: Option<AnyElement>,
5299}
5300
5301#[derive(Debug)]
5302pub struct CursorName {
5303 string: SharedString,
5304 color: Hsla,
5305 is_top_row: bool,
5306}
5307
5308impl CursorLayout {
5309 pub fn new(
5310 origin: gpui::Point<Pixels>,
5311 block_width: Pixels,
5312 line_height: Pixels,
5313 color: Hsla,
5314 shape: CursorShape,
5315 block_text: Option<ShapedLine>,
5316 ) -> CursorLayout {
5317 CursorLayout {
5318 origin,
5319 block_width,
5320 line_height,
5321 color,
5322 shape,
5323 block_text,
5324 cursor_name: None,
5325 }
5326 }
5327
5328 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
5329 Bounds {
5330 origin: self.origin + origin,
5331 size: size(self.block_width, self.line_height),
5332 }
5333 }
5334
5335 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
5336 match self.shape {
5337 CursorShape::Bar => Bounds {
5338 origin: self.origin + origin,
5339 size: size(px(2.0), self.line_height),
5340 },
5341 CursorShape::Block | CursorShape::Hollow => Bounds {
5342 origin: self.origin + origin,
5343 size: size(self.block_width, self.line_height),
5344 },
5345 CursorShape::Underscore => Bounds {
5346 origin: self.origin
5347 + origin
5348 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
5349 size: size(self.block_width, px(2.0)),
5350 },
5351 }
5352 }
5353
5354 pub fn layout(
5355 &mut self,
5356 origin: gpui::Point<Pixels>,
5357 cursor_name: Option<CursorName>,
5358 cx: &mut WindowContext,
5359 ) {
5360 if let Some(cursor_name) = cursor_name {
5361 let bounds = self.bounds(origin);
5362 let text_size = self.line_height / 1.5;
5363
5364 let name_origin = if cursor_name.is_top_row {
5365 point(bounds.right() - px(1.), bounds.top())
5366 } else {
5367 point(bounds.left(), bounds.top() - text_size / 2. - px(1.))
5368 };
5369 let mut name_element = div()
5370 .bg(self.color)
5371 .text_size(text_size)
5372 .px_0p5()
5373 .line_height(text_size + px(2.))
5374 .text_color(cursor_name.color)
5375 .child(cursor_name.string.clone())
5376 .into_any_element();
5377
5378 name_element.prepaint_as_root(
5379 name_origin,
5380 size(AvailableSpace::MinContent, AvailableSpace::MinContent),
5381 cx,
5382 );
5383
5384 self.cursor_name = Some(name_element);
5385 }
5386 }
5387
5388 pub fn paint(&mut self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
5389 let bounds = self.bounds(origin);
5390
5391 //Draw background or border quad
5392 let cursor = if matches!(self.shape, CursorShape::Hollow) {
5393 outline(bounds, self.color)
5394 } else {
5395 fill(bounds, self.color)
5396 };
5397
5398 if let Some(name) = &mut self.cursor_name {
5399 name.paint(cx);
5400 }
5401
5402 cx.paint_quad(cursor);
5403
5404 if let Some(block_text) = &self.block_text {
5405 block_text
5406 .paint(self.origin + origin, self.line_height, cx)
5407 .log_err();
5408 }
5409 }
5410
5411 pub fn shape(&self) -> CursorShape {
5412 self.shape
5413 }
5414}
5415
5416#[derive(Debug)]
5417pub struct HighlightedRange {
5418 pub start_y: Pixels,
5419 pub line_height: Pixels,
5420 pub lines: Vec<HighlightedRangeLine>,
5421 pub color: Hsla,
5422 pub corner_radius: Pixels,
5423}
5424
5425#[derive(Debug)]
5426pub struct HighlightedRangeLine {
5427 pub start_x: Pixels,
5428 pub end_x: Pixels,
5429}
5430
5431impl HighlightedRange {
5432 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
5433 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
5434 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
5435 self.paint_lines(
5436 self.start_y + self.line_height,
5437 &self.lines[1..],
5438 bounds,
5439 cx,
5440 );
5441 } else {
5442 self.paint_lines(self.start_y, &self.lines, bounds, cx);
5443 }
5444 }
5445
5446 fn paint_lines(
5447 &self,
5448 start_y: Pixels,
5449 lines: &[HighlightedRangeLine],
5450 _bounds: Bounds<Pixels>,
5451 cx: &mut WindowContext,
5452 ) {
5453 if lines.is_empty() {
5454 return;
5455 }
5456
5457 let first_line = lines.first().unwrap();
5458 let last_line = lines.last().unwrap();
5459
5460 let first_top_left = point(first_line.start_x, start_y);
5461 let first_top_right = point(first_line.end_x, start_y);
5462
5463 let curve_height = point(Pixels::ZERO, self.corner_radius);
5464 let curve_width = |start_x: Pixels, end_x: Pixels| {
5465 let max = (end_x - start_x) / 2.;
5466 let width = if max < self.corner_radius {
5467 max
5468 } else {
5469 self.corner_radius
5470 };
5471
5472 point(width, Pixels::ZERO)
5473 };
5474
5475 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
5476 let mut path = gpui::Path::new(first_top_right - top_curve_width);
5477 path.curve_to(first_top_right + curve_height, first_top_right);
5478
5479 let mut iter = lines.iter().enumerate().peekable();
5480 while let Some((ix, line)) = iter.next() {
5481 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
5482
5483 if let Some((_, next_line)) = iter.peek() {
5484 let next_top_right = point(next_line.end_x, bottom_right.y);
5485
5486 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
5487 Ordering::Equal => {
5488 path.line_to(bottom_right);
5489 }
5490 Ordering::Less => {
5491 let curve_width = curve_width(next_top_right.x, bottom_right.x);
5492 path.line_to(bottom_right - curve_height);
5493 if self.corner_radius > Pixels::ZERO {
5494 path.curve_to(bottom_right - curve_width, bottom_right);
5495 }
5496 path.line_to(next_top_right + curve_width);
5497 if self.corner_radius > Pixels::ZERO {
5498 path.curve_to(next_top_right + curve_height, next_top_right);
5499 }
5500 }
5501 Ordering::Greater => {
5502 let curve_width = curve_width(bottom_right.x, next_top_right.x);
5503 path.line_to(bottom_right - curve_height);
5504 if self.corner_radius > Pixels::ZERO {
5505 path.curve_to(bottom_right + curve_width, bottom_right);
5506 }
5507 path.line_to(next_top_right - curve_width);
5508 if self.corner_radius > Pixels::ZERO {
5509 path.curve_to(next_top_right + curve_height, next_top_right);
5510 }
5511 }
5512 }
5513 } else {
5514 let curve_width = curve_width(line.start_x, line.end_x);
5515 path.line_to(bottom_right - curve_height);
5516 if self.corner_radius > Pixels::ZERO {
5517 path.curve_to(bottom_right - curve_width, bottom_right);
5518 }
5519
5520 let bottom_left = point(line.start_x, bottom_right.y);
5521 path.line_to(bottom_left + curve_width);
5522 if self.corner_radius > Pixels::ZERO {
5523 path.curve_to(bottom_left - curve_height, bottom_left);
5524 }
5525 }
5526 }
5527
5528 if first_line.start_x > last_line.start_x {
5529 let curve_width = curve_width(last_line.start_x, first_line.start_x);
5530 let second_top_left = point(last_line.start_x, start_y + self.line_height);
5531 path.line_to(second_top_left + curve_height);
5532 if self.corner_radius > Pixels::ZERO {
5533 path.curve_to(second_top_left + curve_width, second_top_left);
5534 }
5535 let first_bottom_left = point(first_line.start_x, second_top_left.y);
5536 path.line_to(first_bottom_left - curve_width);
5537 if self.corner_radius > Pixels::ZERO {
5538 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
5539 }
5540 }
5541
5542 path.line_to(first_top_left + curve_height);
5543 if self.corner_radius > Pixels::ZERO {
5544 path.curve_to(first_top_left + top_curve_width, first_top_left);
5545 }
5546 path.line_to(first_top_right - top_curve_width);
5547
5548 cx.paint_path(path, self.color);
5549 }
5550}
5551
5552pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
5553 (delta.pow(1.5) / 100.0).into()
5554}
5555
5556fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
5557 (delta.pow(1.2) / 300.0).into()
5558}
5559
5560#[cfg(test)]
5561mod tests {
5562 use super::*;
5563 use crate::{
5564 display_map::{BlockDisposition, BlockProperties},
5565 editor_tests::{init_test, update_test_language_settings},
5566 Editor, MultiBuffer,
5567 };
5568 use gpui::{TestAppContext, VisualTestContext};
5569 use language::language_settings;
5570 use log::info;
5571 use std::num::NonZeroU32;
5572 use ui::Context;
5573 use util::test::sample_text;
5574
5575 #[gpui::test]
5576 fn test_shape_line_numbers(cx: &mut TestAppContext) {
5577 init_test(cx, |_| {});
5578 let window = cx.add_window(|cx| {
5579 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
5580 Editor::new(EditorMode::Full, buffer, None, true, cx)
5581 });
5582
5583 let editor = window.root(cx).unwrap();
5584 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5585 let element = EditorElement::new(&editor, style);
5586 let snapshot = window.update(cx, |editor, cx| editor.snapshot(cx)).unwrap();
5587
5588 let layouts = cx
5589 .update_window(*window, |_, cx| {
5590 element.layout_line_numbers(
5591 DisplayRow(0)..DisplayRow(6),
5592 (0..6).map(MultiBufferRow).map(Some),
5593 &Default::default(),
5594 Some(DisplayPoint::new(DisplayRow(0), 0)),
5595 &snapshot,
5596 cx,
5597 )
5598 })
5599 .unwrap();
5600 assert_eq!(layouts.len(), 6);
5601
5602 let relative_rows = window
5603 .update(cx, |editor, cx| {
5604 let snapshot = editor.snapshot(cx);
5605 element.calculate_relative_line_numbers(
5606 &snapshot,
5607 &(DisplayRow(0)..DisplayRow(6)),
5608 Some(DisplayRow(3)),
5609 )
5610 })
5611 .unwrap();
5612 assert_eq!(relative_rows[&DisplayRow(0)], 3);
5613 assert_eq!(relative_rows[&DisplayRow(1)], 2);
5614 assert_eq!(relative_rows[&DisplayRow(2)], 1);
5615 // current line has no relative number
5616 assert_eq!(relative_rows[&DisplayRow(4)], 1);
5617 assert_eq!(relative_rows[&DisplayRow(5)], 2);
5618
5619 // works if cursor is before screen
5620 let relative_rows = window
5621 .update(cx, |editor, cx| {
5622 let snapshot = editor.snapshot(cx);
5623 element.calculate_relative_line_numbers(
5624 &snapshot,
5625 &(DisplayRow(3)..DisplayRow(6)),
5626 Some(DisplayRow(1)),
5627 )
5628 })
5629 .unwrap();
5630 assert_eq!(relative_rows.len(), 3);
5631 assert_eq!(relative_rows[&DisplayRow(3)], 2);
5632 assert_eq!(relative_rows[&DisplayRow(4)], 3);
5633 assert_eq!(relative_rows[&DisplayRow(5)], 4);
5634
5635 // works if cursor is after screen
5636 let relative_rows = window
5637 .update(cx, |editor, cx| {
5638 let snapshot = editor.snapshot(cx);
5639 element.calculate_relative_line_numbers(
5640 &snapshot,
5641 &(DisplayRow(0)..DisplayRow(3)),
5642 Some(DisplayRow(6)),
5643 )
5644 })
5645 .unwrap();
5646 assert_eq!(relative_rows.len(), 3);
5647 assert_eq!(relative_rows[&DisplayRow(0)], 5);
5648 assert_eq!(relative_rows[&DisplayRow(1)], 4);
5649 assert_eq!(relative_rows[&DisplayRow(2)], 3);
5650 }
5651
5652 #[gpui::test]
5653 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
5654 init_test(cx, |_| {});
5655
5656 let window = cx.add_window(|cx| {
5657 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
5658 Editor::new(EditorMode::Full, buffer, None, true, cx)
5659 });
5660 let cx = &mut VisualTestContext::from_window(*window, cx);
5661 let editor = window.root(cx).unwrap();
5662 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5663
5664 window
5665 .update(cx, |editor, cx| {
5666 editor.cursor_shape = CursorShape::Block;
5667 editor.change_selections(None, cx, |s| {
5668 s.select_ranges([
5669 Point::new(0, 0)..Point::new(1, 0),
5670 Point::new(3, 2)..Point::new(3, 3),
5671 Point::new(5, 6)..Point::new(6, 0),
5672 ]);
5673 });
5674 })
5675 .unwrap();
5676
5677 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5678 EditorElement::new(&editor, style)
5679 });
5680
5681 assert_eq!(state.selections.len(), 1);
5682 let local_selections = &state.selections[0].1;
5683 assert_eq!(local_selections.len(), 3);
5684 // moves cursor back one line
5685 assert_eq!(
5686 local_selections[0].head,
5687 DisplayPoint::new(DisplayRow(0), 6)
5688 );
5689 assert_eq!(
5690 local_selections[0].range,
5691 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
5692 );
5693
5694 // moves cursor back one column
5695 assert_eq!(
5696 local_selections[1].range,
5697 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
5698 );
5699 assert_eq!(
5700 local_selections[1].head,
5701 DisplayPoint::new(DisplayRow(3), 2)
5702 );
5703
5704 // leaves cursor on the max point
5705 assert_eq!(
5706 local_selections[2].range,
5707 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
5708 );
5709 assert_eq!(
5710 local_selections[2].head,
5711 DisplayPoint::new(DisplayRow(6), 0)
5712 );
5713
5714 // active lines does not include 1 (even though the range of the selection does)
5715 assert_eq!(
5716 state.active_rows.keys().cloned().collect::<Vec<_>>(),
5717 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
5718 );
5719
5720 // multi-buffer support
5721 // in DisplayPoint coordinates, this is what we're dealing with:
5722 // 0: [[file
5723 // 1: header
5724 // 2: section]]
5725 // 3: aaaaaa
5726 // 4: bbbbbb
5727 // 5: cccccc
5728 // 6:
5729 // 7: [[footer]]
5730 // 8: [[header]]
5731 // 9: ffffff
5732 // 10: gggggg
5733 // 11: hhhhhh
5734 // 12:
5735 // 13: [[footer]]
5736 // 14: [[file
5737 // 15: header
5738 // 16: section]]
5739 // 17: bbbbbb
5740 // 18: cccccc
5741 // 19: dddddd
5742 // 20: [[footer]]
5743 let window = cx.add_window(|cx| {
5744 let buffer = MultiBuffer::build_multi(
5745 [
5746 (
5747 &(sample_text(8, 6, 'a') + "\n"),
5748 vec![
5749 Point::new(0, 0)..Point::new(3, 0),
5750 Point::new(4, 0)..Point::new(7, 0),
5751 ],
5752 ),
5753 (
5754 &(sample_text(8, 6, 'a') + "\n"),
5755 vec![Point::new(1, 0)..Point::new(3, 0)],
5756 ),
5757 ],
5758 cx,
5759 );
5760 Editor::new(EditorMode::Full, buffer, None, true, cx)
5761 });
5762 let editor = window.root(cx).unwrap();
5763 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5764 let _state = window.update(cx, |editor, cx| {
5765 editor.cursor_shape = CursorShape::Block;
5766 editor.change_selections(None, cx, |s| {
5767 s.select_display_ranges([
5768 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0),
5769 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0),
5770 ]);
5771 });
5772 });
5773
5774 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5775 EditorElement::new(&editor, style)
5776 });
5777 assert_eq!(state.selections.len(), 1);
5778 let local_selections = &state.selections[0].1;
5779 assert_eq!(local_selections.len(), 2);
5780
5781 // moves cursor on excerpt boundary back a line
5782 // and doesn't allow selection to bleed through
5783 assert_eq!(
5784 local_selections[0].range,
5785 DisplayPoint::new(DisplayRow(4), 0)..DisplayPoint::new(DisplayRow(7), 0)
5786 );
5787 assert_eq!(
5788 local_selections[0].head,
5789 DisplayPoint::new(DisplayRow(6), 0)
5790 );
5791 // moves cursor on buffer boundary back two lines
5792 // and doesn't allow selection to bleed through
5793 assert_eq!(
5794 local_selections[1].range,
5795 DisplayPoint::new(DisplayRow(10), 0)..DisplayPoint::new(DisplayRow(13), 0)
5796 );
5797 assert_eq!(
5798 local_selections[1].head,
5799 DisplayPoint::new(DisplayRow(12), 0)
5800 );
5801 }
5802
5803 #[gpui::test]
5804 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
5805 init_test(cx, |_| {});
5806
5807 let window = cx.add_window(|cx| {
5808 let buffer = MultiBuffer::build_simple("", cx);
5809 Editor::new(EditorMode::Full, buffer, None, true, cx)
5810 });
5811 let cx = &mut VisualTestContext::from_window(*window, cx);
5812 let editor = window.root(cx).unwrap();
5813 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
5814 window
5815 .update(cx, |editor, cx| {
5816 editor.set_placeholder_text("hello", cx);
5817 editor.insert_blocks(
5818 [BlockProperties {
5819 style: BlockStyle::Fixed,
5820 disposition: BlockDisposition::Above,
5821 height: 3,
5822 position: Anchor::min(),
5823 render: Box::new(|_| div().into_any()),
5824 }],
5825 None,
5826 cx,
5827 );
5828
5829 // Blur the editor so that it displays placeholder text.
5830 cx.blur();
5831 })
5832 .unwrap();
5833
5834 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
5835 EditorElement::new(&editor, style)
5836 });
5837 assert_eq!(state.position_map.line_layouts.len(), 4);
5838 assert_eq!(
5839 state
5840 .line_numbers
5841 .iter()
5842 .map(Option::is_some)
5843 .collect::<Vec<_>>(),
5844 &[false, false, false, true]
5845 );
5846 }
5847
5848 #[gpui::test]
5849 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
5850 const TAB_SIZE: u32 = 4;
5851
5852 let input_text = "\t \t|\t| a b";
5853 let expected_invisibles = vec![
5854 Invisible::Tab {
5855 line_start_offset: 0,
5856 },
5857 Invisible::Whitespace {
5858 line_offset: TAB_SIZE as usize,
5859 },
5860 Invisible::Tab {
5861 line_start_offset: TAB_SIZE as usize + 1,
5862 },
5863 Invisible::Tab {
5864 line_start_offset: TAB_SIZE as usize * 2 + 1,
5865 },
5866 Invisible::Whitespace {
5867 line_offset: TAB_SIZE as usize * 3 + 1,
5868 },
5869 Invisible::Whitespace {
5870 line_offset: TAB_SIZE as usize * 3 + 3,
5871 },
5872 ];
5873 assert_eq!(
5874 expected_invisibles.len(),
5875 input_text
5876 .chars()
5877 .filter(|initial_char| initial_char.is_whitespace())
5878 .count(),
5879 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5880 );
5881
5882 init_test(cx, |s| {
5883 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5884 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
5885 });
5886
5887 let actual_invisibles =
5888 collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, px(500.0));
5889
5890 assert_eq!(expected_invisibles, actual_invisibles);
5891 }
5892
5893 #[gpui::test]
5894 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
5895 init_test(cx, |s| {
5896 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5897 s.defaults.tab_size = NonZeroU32::new(4);
5898 });
5899
5900 for editor_mode_without_invisibles in [
5901 EditorMode::SingleLine,
5902 EditorMode::AutoHeight { max_lines: 100 },
5903 ] {
5904 let invisibles = collect_invisibles_from_new_editor(
5905 cx,
5906 editor_mode_without_invisibles,
5907 "\t\t\t| | a b",
5908 px(500.0),
5909 );
5910 assert!(invisibles.is_empty(),
5911 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
5912 }
5913 }
5914
5915 #[gpui::test]
5916 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
5917 let tab_size = 4;
5918 let input_text = "a\tbcd ".repeat(9);
5919 let repeated_invisibles = [
5920 Invisible::Tab {
5921 line_start_offset: 1,
5922 },
5923 Invisible::Whitespace {
5924 line_offset: tab_size as usize + 3,
5925 },
5926 Invisible::Whitespace {
5927 line_offset: tab_size as usize + 4,
5928 },
5929 Invisible::Whitespace {
5930 line_offset: tab_size as usize + 5,
5931 },
5932 ];
5933 let expected_invisibles = std::iter::once(repeated_invisibles)
5934 .cycle()
5935 .take(9)
5936 .flatten()
5937 .collect::<Vec<_>>();
5938 assert_eq!(
5939 expected_invisibles.len(),
5940 input_text
5941 .chars()
5942 .filter(|initial_char| initial_char.is_whitespace())
5943 .count(),
5944 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
5945 );
5946 info!("Expected invisibles: {expected_invisibles:?}");
5947
5948 init_test(cx, |_| {});
5949
5950 // Put the same string with repeating whitespace pattern into editors of various size,
5951 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
5952 let resize_step = 10.0;
5953 let mut editor_width = 200.0;
5954 while editor_width <= 1000.0 {
5955 update_test_language_settings(cx, |s| {
5956 s.defaults.tab_size = NonZeroU32::new(tab_size);
5957 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
5958 s.defaults.preferred_line_length = Some(editor_width as u32);
5959 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
5960 });
5961
5962 let actual_invisibles = collect_invisibles_from_new_editor(
5963 cx,
5964 EditorMode::Full,
5965 &input_text,
5966 px(editor_width),
5967 );
5968
5969 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
5970 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
5971 let mut i = 0;
5972 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
5973 i = actual_index;
5974 match expected_invisibles.get(i) {
5975 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
5976 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
5977 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
5978 _ => {
5979 panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
5980 }
5981 },
5982 None => panic!("Unexpected extra invisible {actual_invisible:?} at index {i}"),
5983 }
5984 }
5985 let missing_expected_invisibles = &expected_invisibles[i + 1..];
5986 assert!(
5987 missing_expected_invisibles.is_empty(),
5988 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
5989 );
5990
5991 editor_width += resize_step;
5992 }
5993 }
5994
5995 fn collect_invisibles_from_new_editor(
5996 cx: &mut TestAppContext,
5997 editor_mode: EditorMode,
5998 input_text: &str,
5999 editor_width: Pixels,
6000 ) -> Vec<Invisible> {
6001 info!(
6002 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
6003 editor_width.0
6004 );
6005 let window = cx.add_window(|cx| {
6006 let buffer = MultiBuffer::build_simple(&input_text, cx);
6007 Editor::new(editor_mode, buffer, None, true, cx)
6008 });
6009 let cx = &mut VisualTestContext::from_window(*window, cx);
6010 let editor = window.root(cx).unwrap();
6011 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
6012 window
6013 .update(cx, |editor, cx| {
6014 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
6015 editor.set_wrap_width(Some(editor_width), cx);
6016 })
6017 .unwrap();
6018 let (_, state) = cx.draw(point(px(500.), px(500.)), size(px(500.), px(500.)), |_| {
6019 EditorElement::new(&editor, style)
6020 });
6021 state
6022 .position_map
6023 .line_layouts
6024 .iter()
6025 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
6026 .cloned()
6027 .collect()
6028 }
6029}
6030
6031pub fn register_action<T: Action>(
6032 view: &View<Editor>,
6033 cx: &mut WindowContext,
6034 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
6035) {
6036 let view = view.clone();
6037 cx.on_action(TypeId::of::<T>(), move |action, phase, cx| {
6038 let action = action.downcast_ref().unwrap();
6039 if phase == DispatchPhase::Bubble {
6040 view.update(cx, |editor, cx| {
6041 listener(editor, action, cx);
6042 })
6043 }
6044 })
6045}
6046
6047fn compute_auto_height_layout(
6048 editor: &mut Editor,
6049 max_lines: usize,
6050 max_line_number_width: Pixels,
6051 known_dimensions: Size<Option<Pixels>>,
6052 available_width: AvailableSpace,
6053 cx: &mut ViewContext<Editor>,
6054) -> Option<Size<Pixels>> {
6055 let width = known_dimensions.width.or_else(|| {
6056 if let AvailableSpace::Definite(available_width) = available_width {
6057 Some(available_width)
6058 } else {
6059 None
6060 }
6061 })?;
6062 if let Some(height) = known_dimensions.height {
6063 return Some(size(width, height));
6064 }
6065
6066 let style = editor.style.as_ref().unwrap();
6067 let font_id = cx.text_system().resolve_font(&style.text.font());
6068 let font_size = style.text.font_size.to_pixels(cx.rem_size());
6069 let line_height = style.text.line_height_in_pixels(cx.rem_size());
6070 let em_width = cx
6071 .text_system()
6072 .typographic_bounds(font_id, font_size, 'm')
6073 .unwrap()
6074 .size
6075 .width;
6076
6077 let mut snapshot = editor.snapshot(cx);
6078 let gutter_dimensions =
6079 snapshot.gutter_dimensions(font_id, font_size, em_width, max_line_number_width, cx);
6080
6081 editor.gutter_dimensions = gutter_dimensions;
6082 let text_width = width - gutter_dimensions.width;
6083 let overscroll = size(em_width, px(0.));
6084
6085 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
6086 if editor.set_wrap_width(Some(editor_width), cx) {
6087 snapshot = editor.snapshot(cx);
6088 }
6089
6090 let scroll_height = Pixels::from(snapshot.max_point().row().next_row().0) * line_height;
6091 let height = scroll_height
6092 .max(line_height)
6093 .min(line_height * max_lines as f32);
6094
6095 Some(size(width, height))
6096}