1use crate::{
2 display_map::{BlockStyle, DisplaySnapshot, FoldStatus, HighlightedChunk, ToDisplayPoint},
3 editor_settings::ShowScrollbar,
4 git::{diff_hunk_to_display, DisplayDiffHunk},
5 hover_popover::hover_at,
6 link_go_to_definition::{
7 update_go_to_definition_link, update_inlay_link_and_hover_points, GoToDefinitionTrigger,
8 },
9 scroll::scroll_amount::ScrollAmount,
10 CursorShape, DisplayPoint, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
11 HalfPageDown, HalfPageUp, LineDown, LineUp, MoveDown, PageDown, PageUp, Point, SelectPhase,
12 Selection, SoftWrap, ToPoint, MAX_LINE_LEN,
13};
14use anyhow::Result;
15use collections::{BTreeMap, HashMap};
16use gpui::{
17 black, hsla, point, px, relative, size, transparent_black, Action, AnyElement,
18 BorrowAppContext, BorrowWindow, Bounds, ContentMask, Corners, DispatchContext, DispatchPhase,
19 Edges, Element, ElementId, Entity, GlobalElementId, Hsla, KeyDownEvent, KeyListener, KeyMatch,
20 Line, Modifiers, MouseButton, MouseDownEvent, MouseMoveEvent, Pixels, ScrollWheelEvent,
21 ShapedGlyph, Size, StatefulInteraction, Style, TextRun, TextStyle, TextSystem, ViewContext,
22 WindowContext,
23};
24use itertools::Itertools;
25use language::language_settings::ShowWhitespaceSetting;
26use multi_buffer::Anchor;
27use project::project_settings::{GitGutterSetting, ProjectSettings};
28use settings::Settings;
29use smallvec::SmallVec;
30use std::{
31 any::TypeId,
32 borrow::Cow,
33 cmp::{self, Ordering},
34 fmt::Write,
35 iter,
36 ops::Range,
37 sync::Arc,
38};
39use sum_tree::Bias;
40use theme::{ActiveTheme, PlayerColor};
41use util::ResultExt;
42use workspace::item::Item;
43
44enum FoldMarkers {}
45
46struct SelectionLayout {
47 head: DisplayPoint,
48 cursor_shape: CursorShape,
49 is_newest: bool,
50 is_local: bool,
51 range: Range<DisplayPoint>,
52 active_rows: Range<u32>,
53}
54
55impl SelectionLayout {
56 fn new<T: ToPoint + ToDisplayPoint + Clone>(
57 selection: Selection<T>,
58 line_mode: bool,
59 cursor_shape: CursorShape,
60 map: &DisplaySnapshot,
61 is_newest: bool,
62 is_local: bool,
63 ) -> Self {
64 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
65 let display_selection = point_selection.map(|p| p.to_display_point(map));
66 let mut range = display_selection.range();
67 let mut head = display_selection.head();
68 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
69 ..map.next_line_boundary(point_selection.end).1.row();
70
71 // vim visual line mode
72 if line_mode {
73 let point_range = map.expand_to_line(point_selection.range());
74 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
75 }
76
77 // any vim visual mode (including line mode)
78 if cursor_shape == CursorShape::Block && !range.is_empty() && !selection.reversed {
79 if head.column() > 0 {
80 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
81 } else if head.row() > 0 && head != map.max_point() {
82 head = map.clip_point(
83 DisplayPoint::new(head.row() - 1, map.line_len(head.row() - 1)),
84 Bias::Left,
85 );
86 // updating range.end is a no-op unless you're cursor is
87 // on the newline containing a multi-buffer divider
88 // in which case the clip_point may have moved the head up
89 // an additional row.
90 range.end = DisplayPoint::new(head.row() + 1, 0);
91 active_rows.end = head.row();
92 }
93 }
94
95 Self {
96 head,
97 cursor_shape,
98 is_newest,
99 is_local,
100 range,
101 active_rows,
102 }
103 }
104}
105
106pub struct EditorElement {
107 style: EditorStyle,
108}
109
110impl EditorElement {
111 pub fn new(style: EditorStyle) -> Self {
112 Self { style }
113 }
114
115 // fn attach_mouse_handlers(
116 // position_map: &Arc<PositionMap>,
117 // has_popovers: bool,
118 // visible_bounds: Bounds<Pixels>,
119 // text_bounds: Bounds<Pixels>,
120 // gutter_bounds: Bounds<Pixels>,
121 // bounds: Bounds<Pixels>,
122 // cx: &mut ViewContext<Editor>,
123 // ) {
124 // enum EditorElementMouseHandlers {}
125 // let view_id = cx.view_id();
126 // cx.scene().push_mouse_region(
127 // MouseRegion::new::<EditorElementMouseHandlers>(view_id, view_id, visible_bounds)
128 // .on_down(MouseButton::Left, {
129 // let position_map = position_map.clone();
130 // move |event, editor, cx| {
131 // if !Self::mouse_down(
132 // editor,
133 // event.platform_event,
134 // position_map.as_ref(),
135 // text_bounds,
136 // gutter_bounds,
137 // cx,
138 // ) {
139 // cx.propagate_event();
140 // }
141 // }
142 // })
143 // .on_down(MouseButton::Right, {
144 // let position_map = position_map.clone();
145 // move |event, editor, cx| {
146 // if !Self::mouse_right_down(
147 // editor,
148 // event.position,
149 // position_map.as_ref(),
150 // text_bounds,
151 // cx,
152 // ) {
153 // cx.propagate_event();
154 // }
155 // }
156 // })
157 // .on_up(MouseButton::Left, {
158 // let position_map = position_map.clone();
159 // move |event, editor, cx| {
160 // if !Self::mouse_up(
161 // editor,
162 // event.position,
163 // event.cmd,
164 // event.shift,
165 // event.alt,
166 // position_map.as_ref(),
167 // text_bounds,
168 // cx,
169 // ) {
170 // cx.propagate_event()
171 // }
172 // }
173 // })
174 // .on_drag(MouseButton::Left, {
175 // let position_map = position_map.clone();
176 // move |event, editor, cx| {
177 // if event.end {
178 // return;
179 // }
180
181 // if !Self::mouse_dragged(
182 // editor,
183 // event.platform_event,
184 // position_map.as_ref(),
185 // text_bounds,
186 // cx,
187 // ) {
188 // cx.propagate_event()
189 // }
190 // }
191 // })
192 // .on_move({
193 // let position_map = position_map.clone();
194 // move |event, editor, cx| {
195 // if !Self::mouse_moved(
196 // editor,
197 // event.platform_event,
198 // &position_map,
199 // text_bounds,
200 // cx,
201 // ) {
202 // cx.propagate_event()
203 // }
204 // }
205 // })
206 // .on_move_out(move |_, editor: &mut Editor, cx| {
207 // if has_popovers {
208 // hide_hover(editor, cx);
209 // }
210 // })
211 // .on_scroll({
212 // let position_map = position_map.clone();
213 // move |event, editor, cx| {
214 // if !Self::scroll(
215 // editor,
216 // event.position,
217 // *event.delta.raw(),
218 // event.delta.precise(),
219 // &position_map,
220 // bounds,
221 // cx,
222 // ) {
223 // cx.propagate_event()
224 // }
225 // }
226 // }),
227 // );
228
229 // enum GutterHandlers {}
230 // let view_id = cx.view_id();
231 // let region_id = cx.view_id() + 1;
232 // cx.scene().push_mouse_region(
233 // MouseRegion::new::<GutterHandlers>(view_id, region_id, gutter_bounds).on_hover(
234 // |hover, editor: &mut Editor, cx| {
235 // editor.gutter_hover(
236 // &GutterHover {
237 // hovered: hover.started,
238 // },
239 // cx,
240 // );
241 // },
242 // ),
243 // )
244 // }
245
246 fn mouse_down(
247 editor: &mut Editor,
248 event: &MouseDownEvent,
249 position_map: &PositionMap,
250 text_bounds: Bounds<Pixels>,
251 gutter_bounds: Bounds<Pixels>,
252 cx: &mut ViewContext<Editor>,
253 ) -> bool {
254 let mut click_count = event.click_count;
255 let modifiers = event.modifiers;
256
257 if gutter_bounds.contains_point(&event.position) {
258 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
259 } else if !text_bounds.contains_point(&event.position) {
260 return false;
261 }
262
263 let point_for_position = position_map.point_for_position(text_bounds, event.position);
264 let position = point_for_position.previous_valid;
265 if modifiers.shift && modifiers.alt {
266 editor.select(
267 SelectPhase::BeginColumnar {
268 position,
269 goal_column: point_for_position.exact_unclipped.column(),
270 },
271 cx,
272 );
273 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.command {
274 editor.select(
275 SelectPhase::Extend {
276 position,
277 click_count,
278 },
279 cx,
280 );
281 } else {
282 editor.select(
283 SelectPhase::Begin {
284 position,
285 add: modifiers.alt,
286 click_count,
287 },
288 cx,
289 );
290 }
291
292 true
293 }
294
295 // fn mouse_right_down(
296 // editor: &mut Editor,
297 // position: gpui::Point<Pixels>,
298 // position_map: &PositionMap,
299 // text_bounds: Bounds<Pixels>,
300 // cx: &mut EventContext<Editor>,
301 // ) -> bool {
302 // if !text_bounds.contains_point(position) {
303 // return false;
304 // }
305 // let point_for_position = position_map.point_for_position(text_bounds, position);
306 // mouse_context_menu::deploy_context_menu(
307 // editor,
308 // position,
309 // point_for_position.previous_valid,
310 // cx,
311 // );
312 // true
313 // }
314
315 // fn mouse_up(
316 // editor: &mut Editor,
317 // position: gpui::Point<Pixels>,
318 // cmd: bool,
319 // shift: bool,
320 // alt: bool,
321 // position_map: &PositionMap,
322 // text_bounds: Bounds<Pixels>,
323 // cx: &mut EventContext<Editor>,
324 // ) -> bool {
325 // let end_selection = editor.has_pending_selection();
326 // let pending_nonempty_selections = editor.has_pending_nonempty_selection();
327
328 // if end_selection {
329 // editor.select(SelectPhase::End, cx);
330 // }
331
332 // if !pending_nonempty_selections && cmd && text_bounds.contains_point(position) {
333 // let point = position_map.point_for_position(text_bounds, position);
334 // let could_be_inlay = point.as_valid().is_none();
335 // if shift || could_be_inlay {
336 // go_to_fetched_type_definition(editor, point, alt, cx);
337 // } else {
338 // go_to_fetched_definition(editor, point, alt, cx);
339 // }
340
341 // return true;
342 // }
343
344 // end_selection
345 // }
346
347 fn mouse_moved(
348 editor: &mut Editor,
349 event: &MouseMoveEvent,
350 position_map: &PositionMap,
351 text_bounds: Bounds<Pixels>,
352 cx: &mut ViewContext<Editor>,
353 ) -> bool {
354 let modifiers = event.modifiers;
355 if editor.has_pending_selection() && event.pressed_button == Some(MouseButton::Left) {
356 let point_for_position = position_map.point_for_position(text_bounds, event.position);
357 let mut scroll_delta = gpui::Point::<f32>::zero();
358 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
359 let top = text_bounds.origin.y + vertical_margin;
360 let bottom = text_bounds.lower_left().y - vertical_margin;
361 if event.position.y < top {
362 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
363 }
364 if event.position.y > bottom {
365 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
366 }
367
368 let horizontal_margin = position_map.line_height.min(text_bounds.size.width / 3.0);
369 let left = text_bounds.origin.x + horizontal_margin;
370 let right = text_bounds.upper_right().x - horizontal_margin;
371 if event.position.x < left {
372 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
373 }
374 if event.position.x > right {
375 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
376 }
377
378 editor.select(
379 SelectPhase::Update {
380 position: point_for_position.previous_valid,
381 goal_column: point_for_position.exact_unclipped.column(),
382 scroll_position: (position_map.snapshot.scroll_position() + scroll_delta)
383 .clamp(&gpui::Point::zero(), &position_map.scroll_max),
384 },
385 cx,
386 );
387 }
388
389 // This will be handled more correctly once https://github.com/zed-industries/zed/issues/1218 is completed
390 // Don't trigger hover popover if mouse is hovering over context menu
391 if text_bounds.contains_point(&event.position) {
392 let point_for_position = position_map.point_for_position(text_bounds, event.position);
393
394 match point_for_position.as_valid() {
395 Some(point) => {
396 update_go_to_definition_link(
397 editor,
398 Some(GoToDefinitionTrigger::Text(point)),
399 modifiers.command,
400 modifiers.shift,
401 cx,
402 );
403 hover_at(editor, Some(point), cx);
404 }
405 None => {
406 update_inlay_link_and_hover_points(
407 &position_map.snapshot,
408 point_for_position,
409 editor,
410 modifiers.command,
411 modifiers.shift,
412 cx,
413 );
414 }
415 }
416
417 true
418 } else {
419 update_go_to_definition_link(editor, None, modifiers.command, modifiers.shift, cx);
420 hover_at(editor, None, cx);
421 false
422 }
423 }
424
425 fn scroll(
426 editor: &mut Editor,
427 event: &ScrollWheelEvent,
428 position_map: &PositionMap,
429 bounds: Bounds<Pixels>,
430 cx: &mut ViewContext<Editor>,
431 ) -> bool {
432 if !bounds.contains_point(&event.position) {
433 return false;
434 }
435
436 let line_height = position_map.line_height;
437 let max_glyph_width = position_map.em_width;
438 let (delta, axis) = match event.delta {
439 gpui::ScrollDelta::Pixels(mut pixels) => {
440 //Trackpad
441 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
442 (pixels, axis)
443 }
444
445 gpui::ScrollDelta::Lines(lines) => {
446 //Not trackpad
447 let pixels = point(lines.x * max_glyph_width, lines.y * line_height);
448 (pixels, None)
449 }
450 };
451
452 let scroll_position = position_map.snapshot.scroll_position();
453 let x = f32::from((scroll_position.x * max_glyph_width - delta.x) / max_glyph_width);
454 let y = f32::from((scroll_position.y * line_height - delta.y) / line_height);
455 let scroll_position = point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
456 editor.scroll(scroll_position, axis, cx);
457
458 true
459 }
460
461 fn paint_background(
462 &self,
463 gutter_bounds: Bounds<Pixels>,
464 text_bounds: Bounds<Pixels>,
465 layout: &LayoutState,
466 cx: &mut ViewContext<Editor>,
467 ) {
468 let bounds = gutter_bounds.union(&text_bounds);
469 let scroll_top =
470 layout.position_map.snapshot.scroll_position().y * layout.position_map.line_height;
471 let gutter_bg = cx.theme().colors().editor_gutter_background;
472 cx.paint_quad(
473 gutter_bounds,
474 Corners::default(),
475 gutter_bg,
476 Edges::default(),
477 transparent_black(),
478 );
479 cx.paint_quad(
480 text_bounds,
481 Corners::default(),
482 self.style.background,
483 Edges::default(),
484 transparent_black(),
485 );
486
487 if let EditorMode::Full = layout.mode {
488 let mut active_rows = layout.active_rows.iter().peekable();
489 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
490 let mut end_row = *start_row;
491 while active_rows.peek().map_or(false, |r| {
492 *r.0 == end_row + 1 && r.1 == contains_non_empty_selection
493 }) {
494 active_rows.next().unwrap();
495 end_row += 1;
496 }
497
498 if !contains_non_empty_selection {
499 let origin = point(
500 bounds.origin.x,
501 bounds.origin.y + (layout.position_map.line_height * *start_row as f32)
502 - scroll_top,
503 );
504 let size = size(
505 bounds.size.width,
506 layout.position_map.line_height * (end_row - start_row + 1) as f32,
507 );
508 let active_line_bg = cx.theme().colors().editor_active_line_background;
509 cx.paint_quad(
510 Bounds { origin, size },
511 Corners::default(),
512 active_line_bg,
513 Edges::default(),
514 transparent_black(),
515 );
516 }
517 }
518
519 if let Some(highlighted_rows) = &layout.highlighted_rows {
520 let origin = point(
521 bounds.origin.x,
522 bounds.origin.y
523 + (layout.position_map.line_height * highlighted_rows.start as f32)
524 - scroll_top,
525 );
526 let size = size(
527 bounds.size.width,
528 layout.position_map.line_height * highlighted_rows.len() as f32,
529 );
530 let highlighted_line_bg = cx.theme().colors().editor_highlighted_line_background;
531 cx.paint_quad(
532 Bounds { origin, size },
533 Corners::default(),
534 highlighted_line_bg,
535 Edges::default(),
536 transparent_black(),
537 );
538 }
539
540 let scroll_left =
541 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
542
543 for (wrap_position, active) in layout.wrap_guides.iter() {
544 let x = (text_bounds.origin.x + *wrap_position + layout.position_map.em_width / 2.)
545 - scroll_left;
546
547 if x < text_bounds.origin.x
548 || (layout.show_scrollbars && x > self.scrollbar_left(&bounds))
549 {
550 continue;
551 }
552
553 let color = if *active {
554 cx.theme().colors().editor_active_wrap_guide
555 } else {
556 cx.theme().colors().editor_wrap_guide
557 };
558 cx.paint_quad(
559 Bounds {
560 origin: point(x, text_bounds.origin.y),
561 size: size(px(1.), text_bounds.size.height),
562 },
563 Corners::default(),
564 color,
565 Edges::default(),
566 transparent_black(),
567 );
568 }
569 }
570 }
571
572 fn paint_gutter(
573 &mut self,
574 bounds: Bounds<Pixels>,
575 layout: &LayoutState,
576 editor: &mut Editor,
577 cx: &mut ViewContext<Editor>,
578 ) {
579 let line_height = layout.position_map.line_height;
580
581 let scroll_position = layout.position_map.snapshot.scroll_position();
582 let scroll_top = scroll_position.y * line_height;
583
584 let show_gutter = matches!(
585 ProjectSettings::get_global(cx).git.git_gutter,
586 Some(GitGutterSetting::TrackedFiles)
587 );
588
589 if show_gutter {
590 Self::paint_diff_hunks(bounds, layout, cx);
591 }
592
593 for (ix, line) in layout.line_number_layouts.iter().enumerate() {
594 if let Some(line) = line {
595 let line_origin = bounds.origin
596 + point(
597 bounds.size.width - line.width - layout.gutter_padding,
598 ix as f32 * line_height - (scroll_top % line_height),
599 );
600
601 line.paint(line_origin, line_height, cx);
602 }
603 }
604
605 // todo!("fold indicators")
606 // for (ix, fold_indicator) in layout.fold_indicators.iter_mut().enumerate() {
607 // if let Some(indicator) = fold_indicator.as_mut() {
608 // let position = point(
609 // bounds.width() - layout.gutter_padding,
610 // ix as f32 * line_height - (scroll_top % line_height),
611 // );
612 // let centering_offset = point(
613 // (layout.gutter_padding + layout.gutter_margin - indicator.size().x) / 2.,
614 // (line_height - indicator.size().y) / 2.,
615 // );
616
617 // let indicator_origin = bounds.origin + position + centering_offset;
618
619 // indicator.paint(indicator_origin, visible_bounds, editor, cx);
620 // }
621 // }
622
623 // todo!("code actions indicator")
624 // if let Some((row, indicator)) = layout.code_actions_indicator.as_mut() {
625 // let mut x = 0.;
626 // let mut y = *row as f32 * line_height - scroll_top;
627 // x += ((layout.gutter_padding + layout.gutter_margin) - indicator.size().x) / 2.;
628 // y += (line_height - indicator.size().y) / 2.;
629 // indicator.paint(bounds.origin + point(x, y), visible_bounds, editor, cx);
630 // }
631 }
632
633 fn paint_diff_hunks(
634 bounds: Bounds<Pixels>,
635 layout: &LayoutState,
636 cx: &mut ViewContext<Editor>,
637 ) {
638 // todo!()
639 // let diff_style = &theme::current(cx).editor.diff.clone();
640 // let line_height = layout.position_map.line_height;
641
642 // let scroll_position = layout.position_map.snapshot.scroll_position();
643 // let scroll_top = scroll_position.y * line_height;
644
645 // for hunk in &layout.display_hunks {
646 // let (display_row_range, status) = match hunk {
647 // //TODO: This rendering is entirely a horrible hack
648 // &DisplayDiffHunk::Folded { display_row: row } => {
649 // let start_y = row as f32 * line_height - scroll_top;
650 // let end_y = start_y + line_height;
651
652 // let width = diff_style.removed_width_em * line_height;
653 // let highlight_origin = bounds.origin + point(-width, start_y);
654 // let highlight_size = point(width * 2., end_y - start_y);
655 // let highlight_bounds = Bounds::<Pixels>::new(highlight_origin, highlight_size);
656
657 // cx.paint_quad(Quad {
658 // bounds: highlight_bounds,
659 // background: Some(diff_style.modified),
660 // border: Border::new(0., Color::transparent_black()).into(),
661 // corner_radii: (1. * line_height).into(),
662 // });
663
664 // continue;
665 // }
666
667 // DisplayDiffHunk::Unfolded {
668 // display_row_range,
669 // status,
670 // } => (display_row_range, status),
671 // };
672
673 // let color = match status {
674 // DiffHunkStatus::Added => diff_style.inserted,
675 // DiffHunkStatus::Modified => diff_style.modified,
676
677 // //TODO: This rendering is entirely a horrible hack
678 // DiffHunkStatus::Removed => {
679 // let row = display_row_range.start;
680
681 // let offset = line_height / 2.;
682 // let start_y = row as f32 * line_height - offset - scroll_top;
683 // let end_y = start_y + line_height;
684
685 // let width = diff_style.removed_width_em * line_height;
686 // let highlight_origin = bounds.origin + point(-width, start_y);
687 // let highlight_size = point(width * 2., end_y - start_y);
688 // let highlight_bounds = Bounds::<Pixels>::new(highlight_origin, highlight_size);
689
690 // cx.paint_quad(Quad {
691 // bounds: highlight_bounds,
692 // background: Some(diff_style.deleted),
693 // border: Border::new(0., Color::transparent_black()).into(),
694 // corner_radii: (1. * line_height).into(),
695 // });
696
697 // continue;
698 // }
699 // };
700
701 // let start_row = display_row_range.start;
702 // let end_row = display_row_range.end;
703
704 // let start_y = start_row as f32 * line_height - scroll_top;
705 // let end_y = end_row as f32 * line_height - scroll_top;
706
707 // let width = diff_style.width_em * line_height;
708 // let highlight_origin = bounds.origin + point(-width, start_y);
709 // let highlight_size = point(width * 2., end_y - start_y);
710 // let highlight_bounds = Bounds::<Pixels>::new(highlight_origin, highlight_size);
711
712 // cx.paint_quad(Quad {
713 // bounds: highlight_bounds,
714 // background: Some(color),
715 // border: Border::new(0., Color::transparent_black()).into(),
716 // corner_radii: (diff_style.corner_radius * line_height).into(),
717 // });
718 // }
719 }
720
721 fn paint_text(
722 &mut self,
723 bounds: Bounds<Pixels>,
724 layout: &LayoutState,
725 editor: &mut Editor,
726 cx: &mut ViewContext<Editor>,
727 ) {
728 let scroll_position = layout.position_map.snapshot.scroll_position();
729 let start_row = layout.visible_display_row_range.start;
730 let scroll_top = scroll_position.y * layout.position_map.line_height;
731 let max_glyph_width = layout.position_map.em_width;
732 let scroll_left = scroll_position.x * max_glyph_width;
733 let content_origin = bounds.origin + point(layout.gutter_margin, Pixels::ZERO);
734 let line_end_overshoot = 0.15 * layout.position_map.line_height;
735 let whitespace_setting = editor.buffer.read(cx).settings_at(0, cx).show_whitespaces;
736
737 cx.with_content_mask(ContentMask { bounds }, |cx| {
738 // todo!("cursor region")
739 // cx.scene().push_cursor_region(CursorRegion {
740 // bounds,
741 // style: if !editor.link_go_to_definition_state.definitions.is_empty {
742 // CursorStyle::PointingHand
743 // } else {
744 // CursorStyle::IBeam
745 // },
746 // });
747
748 // todo!("fold ranges")
749 // let fold_corner_radius =
750 // self.style.folds.ellipses.corner_radius_factor * layout.position_map.line_height;
751 // for (id, range, color) in layout.fold_ranges.iter() {
752 // self.paint_highlighted_range(
753 // range.clone(),
754 // *color,
755 // fold_corner_radius,
756 // fold_corner_radius * 2.,
757 // layout,
758 // content_origin,
759 // scroll_top,
760 // scroll_left,
761 // bounds,
762 // cx,
763 // );
764
765 // for bound in range_to_bounds(
766 // &range,
767 // content_origin,
768 // scroll_left,
769 // scroll_top,
770 // &layout.visible_display_row_range,
771 // line_end_overshoot,
772 // &layout.position_map,
773 // ) {
774 // cx.scene().push_cursor_region(CursorRegion {
775 // bounds: bound,
776 // style: CursorStyle::PointingHand,
777 // });
778
779 // let display_row = range.start.row();
780
781 // let buffer_row = DisplayPoint::new(display_row, 0)
782 // .to_point(&layout.position_map.snapshot.display_snapshot)
783 // .row;
784
785 // let view_id = cx.view_id();
786 // cx.scene().push_mouse_region(
787 // MouseRegion::new::<FoldMarkers>(view_id, *id as usize, bound)
788 // .on_click(MouseButton::Left, move |_, editor: &mut Editor, cx| {
789 // editor.unfold_at(&UnfoldAt { buffer_row }, cx)
790 // })
791 // .with_notify_on_hover(true)
792 // .with_notify_on_click(true),
793 // )
794 // }
795 // }
796
797 for (range, color) in &layout.highlighted_ranges {
798 self.paint_highlighted_range(
799 range.clone(),
800 *color,
801 Pixels::ZERO,
802 line_end_overshoot,
803 layout,
804 content_origin,
805 scroll_top,
806 scroll_left,
807 bounds,
808 cx,
809 );
810 }
811
812 let mut cursors = SmallVec::<[Cursor; 32]>::new();
813 let corner_radius = 0.15 * layout.position_map.line_height;
814 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
815
816 for (selection_style, selections) in &layout.selections {
817 for selection in selections {
818 self.paint_highlighted_range(
819 selection.range.clone(),
820 selection_style.selection,
821 corner_radius,
822 corner_radius * 2.,
823 layout,
824 content_origin,
825 scroll_top,
826 scroll_left,
827 bounds,
828 cx,
829 );
830
831 if selection.is_local && !selection.range.is_empty() {
832 invisible_display_ranges.push(selection.range.clone());
833 }
834
835 if !selection.is_local || editor.show_local_cursors(cx) {
836 let cursor_position = selection.head;
837 if layout
838 .visible_display_row_range
839 .contains(&cursor_position.row())
840 {
841 let cursor_row_layout = &layout.position_map.line_layouts
842 [(cursor_position.row() - start_row) as usize]
843 .line;
844 let cursor_column = cursor_position.column() as usize;
845
846 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
847 let mut block_width = cursor_row_layout.x_for_index(cursor_column + 1)
848 - cursor_character_x;
849 if block_width == Pixels::ZERO {
850 block_width = layout.position_map.em_width;
851 }
852 let block_text = if let CursorShape::Block = selection.cursor_shape {
853 layout
854 .position_map
855 .snapshot
856 .chars_at(cursor_position)
857 .next()
858 .and_then(|(character, _)| {
859 let text = character.to_string();
860 cx.text_system()
861 .layout_text(
862 &text,
863 cursor_row_layout.font_size,
864 &[TextRun {
865 len: text.len(),
866 font: self.style.text.font(),
867 color: self.style.background,
868 underline: None,
869 }],
870 None,
871 )
872 .unwrap()
873 .pop()
874 })
875 } else {
876 None
877 };
878
879 let x = cursor_character_x - scroll_left;
880 let y = cursor_position.row() as f32 * layout.position_map.line_height
881 - scroll_top;
882 if selection.is_newest {
883 editor.pixel_position_of_newest_cursor = Some(point(
884 bounds.origin.x + x + block_width / 2.,
885 bounds.origin.y + y + layout.position_map.line_height / 2.,
886 ));
887 }
888 cursors.push(Cursor {
889 color: selection_style.cursor,
890 block_width,
891 origin: point(x, y),
892 line_height: layout.position_map.line_height,
893 shape: selection.cursor_shape,
894 block_text,
895 });
896 }
897 }
898 }
899 }
900
901 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
902 let row = start_row + ix as u32;
903 line_with_invisibles.draw(
904 layout,
905 row,
906 scroll_top,
907 content_origin,
908 scroll_left,
909 whitespace_setting,
910 &invisible_display_ranges,
911 cx,
912 )
913 }
914
915 cx.stack(0, |cx| {
916 for cursor in cursors {
917 cursor.paint(content_origin, cx);
918 }
919 });
920 // cx.scene().push_layer(Some(bounds));
921
922 // cx.scene().pop_layer();
923
924 // if let Some((position, context_menu)) = layout.context_menu.as_mut() {
925 // cx.scene().push_stacking_context(None, None);
926 // let cursor_row_layout =
927 // &layout.position_map.line_layouts[(position.row() - start_row) as usize].line;
928 // let x = cursor_row_layout.x_for_index(position.column() as usize) - scroll_left;
929 // let y = (position.row() + 1) as f32 * layout.position_map.line_height - scroll_top;
930 // let mut list_origin = content_origin + point(x, y);
931 // let list_width = context_menu.size().x;
932 // let list_height = context_menu.size().y;
933
934 // // Snap the right edge of the list to the right edge of the window if
935 // // its horizontal bounds overflow.
936 // if list_origin.x + list_width > cx.window_size().x {
937 // list_origin.set_x((cx.window_size().x - list_width).max(0.));
938 // }
939
940 // if list_origin.y + list_height > bounds.max_y {
941 // list_origin
942 // .set_y(list_origin.y - layout.position_map.line_height - list_height);
943 // }
944
945 // context_menu.paint(
946 // list_origin,
947 // Bounds::<Pixels>::from_points(
948 // gpui::Point::<Pixels>::zero(),
949 // point(f32::MAX, f32::MAX),
950 // ), // Let content bleed outside of editor
951 // editor,
952 // cx,
953 // );
954
955 // cx.scene().pop_stacking_context();
956 // }
957
958 // if let Some((position, hover_popovers)) = layout.hover_popovers.as_mut() {
959 // cx.scene().push_stacking_context(None, None);
960
961 // // This is safe because we check on layout whether the required row is available
962 // let hovered_row_layout =
963 // &layout.position_map.line_layouts[(position.row() - start_row) as usize].line;
964
965 // // Minimum required size: Take the first popover, and add 1.5 times the minimum popover
966 // // height. This is the size we will use to decide whether to render popovers above or below
967 // // the hovered line.
968 // let first_size = hover_popovers[0].size();
969 // let height_to_reserve = first_size.y
970 // + 1.5 * MIN_POPOVER_LINE_HEIGHT as f32 * layout.position_map.line_height;
971
972 // // Compute Hovered Point
973 // let x = hovered_row_layout.x_for_index(position.column() as usize) - scroll_left;
974 // let y = position.row() as f32 * layout.position_map.line_height - scroll_top;
975 // let hovered_point = content_origin + point(x, y);
976
977 // if hovered_point.y - height_to_reserve > 0.0 {
978 // // There is enough space above. Render popovers above the hovered point
979 // let mut current_y = hovered_point.y;
980 // for hover_popover in hover_popovers {
981 // let size = hover_popover.size();
982 // let mut popover_origin = point(hovered_point.x, current_y - size.y);
983
984 // let x_out_of_bounds = bounds.max_x - (popover_origin.x + size.x);
985 // if x_out_of_bounds < 0.0 {
986 // popover_origin.set_x(popover_origin.x + x_out_of_bounds);
987 // }
988
989 // hover_popover.paint(
990 // popover_origin,
991 // Bounds::<Pixels>::from_points(
992 // gpui::Point::<Pixels>::zero(),
993 // point(f32::MAX, f32::MAX),
994 // ), // Let content bleed outside of editor
995 // editor,
996 // cx,
997 // );
998
999 // current_y = popover_origin.y - HOVER_POPOVER_GAP;
1000 // }
1001 // } else {
1002 // // There is not enough space above. Render popovers below the hovered point
1003 // let mut current_y = hovered_point.y + layout.position_map.line_height;
1004 // for hover_popover in hover_popovers {
1005 // let size = hover_popover.size();
1006 // let mut popover_origin = point(hovered_point.x, current_y);
1007
1008 // let x_out_of_bounds = bounds.max_x - (popover_origin.x + size.x);
1009 // if x_out_of_bounds < 0.0 {
1010 // popover_origin.set_x(popover_origin.x + x_out_of_bounds);
1011 // }
1012
1013 // hover_popover.paint(
1014 // popover_origin,
1015 // Bounds::<Pixels>::from_points(
1016 // gpui::Point::<Pixels>::zero(),
1017 // point(f32::MAX, f32::MAX),
1018 // ), // Let content bleed outside of editor
1019 // editor,
1020 // cx,
1021 // );
1022
1023 // current_y = popover_origin.y + size.y + HOVER_POPOVER_GAP;
1024 // }
1025 // }
1026
1027 // cx.scene().pop_stacking_context();
1028 // }
1029 })
1030 }
1031
1032 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
1033 bounds.upper_right().x - self.style.scrollbar_width
1034 }
1035
1036 // fn paint_scrollbar(
1037 // &mut self,
1038 // bounds: Bounds<Pixels>,
1039 // layout: &mut LayoutState,
1040 // editor: &Editor,
1041 // cx: &mut ViewContext<Editor>,
1042 // ) {
1043 // enum ScrollbarMouseHandlers {}
1044 // if layout.mode != EditorMode::Full {
1045 // return;
1046 // }
1047
1048 // let style = &self.style.theme.scrollbar;
1049
1050 // let top = bounds.min_y;
1051 // let bottom = bounds.max_y;
1052 // let right = bounds.max_x;
1053 // let left = self.scrollbar_left(&bounds);
1054 // let row_range = &layout.scrollbar_row_range;
1055 // let max_row = layout.max_row as f32 + (row_range.end - row_range.start);
1056
1057 // let mut height = bounds.height();
1058 // let mut first_row_y_offset = 0.0;
1059
1060 // // Impose a minimum height on the scrollbar thumb
1061 // let row_height = height / max_row;
1062 // let min_thumb_height =
1063 // style.min_height_factor * cx.font_cache.line_height(self.style.text.font_size);
1064 // let thumb_height = (row_range.end - row_range.start) * row_height;
1065 // if thumb_height < min_thumb_height {
1066 // first_row_y_offset = (min_thumb_height - thumb_height) / 2.0;
1067 // height -= min_thumb_height - thumb_height;
1068 // }
1069
1070 // let y_for_row = |row: f32| -> f32 { top + first_row_y_offset + row * row_height };
1071
1072 // let thumb_top = y_for_row(row_range.start) - first_row_y_offset;
1073 // let thumb_bottom = y_for_row(row_range.end) + first_row_y_offset;
1074 // let track_bounds = Bounds::<Pixels>::from_points(point(left, top), point(right, bottom));
1075 // let thumb_bounds = Bounds::<Pixels>::from_points(point(left, thumb_top), point(right, thumb_bottom));
1076
1077 // if layout.show_scrollbars {
1078 // cx.paint_quad(Quad {
1079 // bounds: track_bounds,
1080 // border: style.track.border.into(),
1081 // background: style.track.background_color,
1082 // ..Default::default()
1083 // });
1084 // let scrollbar_settings = settings::get::<EditorSettings>(cx).scrollbar;
1085 // let theme = theme::current(cx);
1086 // let scrollbar_theme = &theme.editor.scrollbar;
1087 // if layout.is_singleton && scrollbar_settings.selections {
1088 // let start_anchor = Anchor::min();
1089 // let end_anchor = Anchor::max;
1090 // let color = scrollbar_theme.selections;
1091 // let border = Border {
1092 // width: 1.,
1093 // color: style.thumb.border.color,
1094 // overlay: false,
1095 // top: false,
1096 // right: true,
1097 // bottom: false,
1098 // left: true,
1099 // };
1100 // let mut push_region = |start: DisplayPoint, end: DisplayPoint| {
1101 // let start_y = y_for_row(start.row() as f32);
1102 // let mut end_y = y_for_row(end.row() as f32);
1103 // if end_y - start_y < 1. {
1104 // end_y = start_y + 1.;
1105 // }
1106 // let bounds = Bounds::<Pixels>::from_points(point(left, start_y), point(right, end_y));
1107
1108 // cx.paint_quad(Quad {
1109 // bounds,
1110 // background: Some(color),
1111 // border: border.into(),
1112 // corner_radii: style.thumb.corner_radii.into(),
1113 // })
1114 // };
1115 // let background_ranges = editor
1116 // .background_highlight_row_ranges::<crate::items::BufferSearchHighlights>(
1117 // start_anchor..end_anchor,
1118 // &layout.position_map.snapshot,
1119 // 50000,
1120 // );
1121 // for row in background_ranges {
1122 // let start = row.start();
1123 // let end = row.end();
1124 // push_region(*start, *end);
1125 // }
1126 // }
1127
1128 // if layout.is_singleton && scrollbar_settings.git_diff {
1129 // let diff_style = scrollbar_theme.git.clone();
1130 // for hunk in layout
1131 // .position_map
1132 // .snapshot
1133 // .buffer_snapshot
1134 // .git_diff_hunks_in_range(0..(max_row.floor() as u32))
1135 // {
1136 // let start_display = Point::new(hunk.buffer_range.start, 0)
1137 // .to_display_point(&layout.position_map.snapshot.display_snapshot);
1138 // let end_display = Point::new(hunk.buffer_range.end, 0)
1139 // .to_display_point(&layout.position_map.snapshot.display_snapshot);
1140 // let start_y = y_for_row(start_display.row() as f32);
1141 // let mut end_y = if hunk.buffer_range.start == hunk.buffer_range.end {
1142 // y_for_row((end_display.row() + 1) as f32)
1143 // } else {
1144 // y_for_row((end_display.row()) as f32)
1145 // };
1146
1147 // if end_y - start_y < 1. {
1148 // end_y = start_y + 1.;
1149 // }
1150 // let bounds = Bounds::<Pixels>::from_points(point(left, start_y), point(right, end_y));
1151
1152 // let color = match hunk.status() {
1153 // DiffHunkStatus::Added => diff_style.inserted,
1154 // DiffHunkStatus::Modified => diff_style.modified,
1155 // DiffHunkStatus::Removed => diff_style.deleted,
1156 // };
1157
1158 // let border = Border {
1159 // width: 1.,
1160 // color: style.thumb.border.color,
1161 // overlay: false,
1162 // top: false,
1163 // right: true,
1164 // bottom: false,
1165 // left: true,
1166 // };
1167
1168 // cx.paint_quad(Quad {
1169 // bounds,
1170 // background: Some(color),
1171 // border: border.into(),
1172 // corner_radii: style.thumb.corner_radii.into(),
1173 // })
1174 // }
1175 // }
1176
1177 // cx.paint_quad(Quad {
1178 // bounds: thumb_bounds,
1179 // border: style.thumb.border.into(),
1180 // background: style.thumb.background_color,
1181 // corner_radii: style.thumb.corner_radii.into(),
1182 // });
1183 // }
1184
1185 // cx.scene().push_cursor_region(CursorRegion {
1186 // bounds: track_bounds,
1187 // style: CursorStyle::Arrow,
1188 // });
1189 // let region_id = cx.view_id();
1190 // cx.scene().push_mouse_region(
1191 // MouseRegion::new::<ScrollbarMouseHandlers>(region_id, region_id, track_bounds)
1192 // .on_move(move |event, editor: &mut Editor, cx| {
1193 // if event.pressed_button.is_none() {
1194 // editor.scroll_manager.show_scrollbar(cx);
1195 // }
1196 // })
1197 // .on_down(MouseButton::Left, {
1198 // let row_range = row_range.clone();
1199 // move |event, editor: &mut Editor, cx| {
1200 // let y = event.position.y;
1201 // if y < thumb_top || thumb_bottom < y {
1202 // let center_row = ((y - top) * max_row as f32 / height).round() as u32;
1203 // let top_row = center_row
1204 // .saturating_sub((row_range.end - row_range.start) as u32 / 2);
1205 // let mut position = editor.scroll_position(cx);
1206 // position.set_y(top_row as f32);
1207 // editor.set_scroll_position(position, cx);
1208 // } else {
1209 // editor.scroll_manager.show_scrollbar(cx);
1210 // }
1211 // }
1212 // })
1213 // .on_drag(MouseButton::Left, {
1214 // move |event, editor: &mut Editor, cx| {
1215 // if event.end {
1216 // return;
1217 // }
1218
1219 // let y = event.prev_mouse_position.y;
1220 // let new_y = event.position.y;
1221 // if thumb_top < y && y < thumb_bottom {
1222 // let mut position = editor.scroll_position(cx);
1223 // position.set_y(position.y + (new_y - y) * (max_row as f32) / height);
1224 // if position.y < 0.0 {
1225 // position.set_y(0.);
1226 // }
1227 // editor.set_scroll_position(position, cx);
1228 // }
1229 // }
1230 // }),
1231 // );
1232 // }
1233
1234 #[allow(clippy::too_many_arguments)]
1235 fn paint_highlighted_range(
1236 &self,
1237 range: Range<DisplayPoint>,
1238 color: Hsla,
1239 corner_radius: Pixels,
1240 line_end_overshoot: Pixels,
1241 layout: &LayoutState,
1242 content_origin: gpui::Point<Pixels>,
1243 scroll_top: Pixels,
1244 scroll_left: Pixels,
1245 bounds: Bounds<Pixels>,
1246 cx: &mut ViewContext<Editor>,
1247 ) {
1248 let start_row = layout.visible_display_row_range.start;
1249 let end_row = layout.visible_display_row_range.end;
1250 if range.start != range.end {
1251 let row_range = if range.end.column() == 0 {
1252 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
1253 } else {
1254 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row() + 1, end_row)
1255 };
1256
1257 let highlighted_range = HighlightedRange {
1258 color,
1259 line_height: layout.position_map.line_height,
1260 corner_radius,
1261 start_y: content_origin.y
1262 + row_range.start as f32 * layout.position_map.line_height
1263 - scroll_top,
1264 lines: row_range
1265 .into_iter()
1266 .map(|row| {
1267 let line_layout =
1268 &layout.position_map.line_layouts[(row - start_row) as usize].line;
1269 HighlightedRangeLine {
1270 start_x: if row == range.start.row() {
1271 content_origin.x
1272 + line_layout.x_for_index(range.start.column() as usize)
1273 - scroll_left
1274 } else {
1275 content_origin.x - scroll_left
1276 },
1277 end_x: if row == range.end.row() {
1278 content_origin.x
1279 + line_layout.x_for_index(range.end.column() as usize)
1280 - scroll_left
1281 } else {
1282 content_origin.x + line_layout.width + line_end_overshoot
1283 - scroll_left
1284 },
1285 }
1286 })
1287 .collect(),
1288 };
1289
1290 highlighted_range.paint(bounds, cx);
1291 }
1292 }
1293
1294 // fn paint_blocks(
1295 // &mut self,
1296 // bounds: Bounds<Pixels>,
1297 // visible_bounds: Bounds<Pixels>,
1298 // layout: &mut LayoutState,
1299 // editor: &mut Editor,
1300 // cx: &mut ViewContext<Editor>,
1301 // ) {
1302 // let scroll_position = layout.position_map.snapshot.scroll_position();
1303 // let scroll_left = scroll_position.x * layout.position_map.em_width;
1304 // let scroll_top = scroll_position.y * layout.position_map.line_height;
1305
1306 // for block in &mut layout.blocks {
1307 // let mut origin = bounds.origin
1308 // + point(
1309 // 0.,
1310 // block.row as f32 * layout.position_map.line_height - scroll_top,
1311 // );
1312 // if !matches!(block.style, BlockStyle::Sticky) {
1313 // origin += point(-scroll_left, 0.);
1314 // }
1315 // block.element.paint(origin, visible_bounds, editor, cx);
1316 // }
1317 // }
1318
1319 fn column_pixels(&self, column: usize, cx: &ViewContext<Editor>) -> Pixels {
1320 let style = &self.style;
1321 let font_size = style.text.font_size.to_pixels(cx.rem_size());
1322 let layout = cx
1323 .text_system()
1324 .layout_text(
1325 " ".repeat(column).as_str(),
1326 font_size,
1327 &[TextRun {
1328 len: column,
1329 font: style.text.font(),
1330 color: Hsla::default(),
1331 underline: None,
1332 }],
1333 None,
1334 )
1335 .unwrap();
1336
1337 layout[0].width
1338 }
1339
1340 fn max_line_number_width(&self, snapshot: &EditorSnapshot, cx: &ViewContext<Editor>) -> Pixels {
1341 let digit_count = (snapshot.max_buffer_row() as f32 + 1.).log10().floor() as usize + 1;
1342 self.column_pixels(digit_count, cx)
1343 }
1344
1345 //Folds contained in a hunk are ignored apart from shrinking visual size
1346 //If a fold contains any hunks then that fold line is marked as modified
1347 fn layout_git_gutters(
1348 &self,
1349 display_rows: Range<u32>,
1350 snapshot: &EditorSnapshot,
1351 ) -> Vec<DisplayDiffHunk> {
1352 let buffer_snapshot = &snapshot.buffer_snapshot;
1353
1354 let buffer_start_row = DisplayPoint::new(display_rows.start, 0)
1355 .to_point(snapshot)
1356 .row;
1357 let buffer_end_row = DisplayPoint::new(display_rows.end, 0)
1358 .to_point(snapshot)
1359 .row;
1360
1361 buffer_snapshot
1362 .git_diff_hunks_in_range(buffer_start_row..buffer_end_row)
1363 .map(|hunk| diff_hunk_to_display(hunk, snapshot))
1364 .dedup()
1365 .collect()
1366 }
1367
1368 fn calculate_relative_line_numbers(
1369 &self,
1370 snapshot: &EditorSnapshot,
1371 rows: &Range<u32>,
1372 relative_to: Option<u32>,
1373 ) -> HashMap<u32, u32> {
1374 let mut relative_rows: HashMap<u32, u32> = Default::default();
1375 let Some(relative_to) = relative_to else {
1376 return relative_rows;
1377 };
1378
1379 let start = rows.start.min(relative_to);
1380 let end = rows.end.max(relative_to);
1381
1382 let buffer_rows = snapshot
1383 .buffer_rows(start)
1384 .take(1 + (end - start) as usize)
1385 .collect::<Vec<_>>();
1386
1387 let head_idx = relative_to - start;
1388 let mut delta = 1;
1389 let mut i = head_idx + 1;
1390 while i < buffer_rows.len() as u32 {
1391 if buffer_rows[i as usize].is_some() {
1392 if rows.contains(&(i + start)) {
1393 relative_rows.insert(i + start, delta);
1394 }
1395 delta += 1;
1396 }
1397 i += 1;
1398 }
1399 delta = 1;
1400 i = head_idx.min(buffer_rows.len() as u32 - 1);
1401 while i > 0 && buffer_rows[i as usize].is_none() {
1402 i -= 1;
1403 }
1404
1405 while i > 0 {
1406 i -= 1;
1407 if buffer_rows[i as usize].is_some() {
1408 if rows.contains(&(i + start)) {
1409 relative_rows.insert(i + start, delta);
1410 }
1411 delta += 1;
1412 }
1413 }
1414
1415 relative_rows
1416 }
1417
1418 fn layout_line_numbers(
1419 &self,
1420 rows: Range<u32>,
1421 active_rows: &BTreeMap<u32, bool>,
1422 newest_selection_head: DisplayPoint,
1423 is_singleton: bool,
1424 snapshot: &EditorSnapshot,
1425 cx: &ViewContext<Editor>,
1426 ) -> (
1427 Vec<Option<gpui::Line>>,
1428 Vec<Option<(FoldStatus, BufferRow, bool)>>,
1429 ) {
1430 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1431 let include_line_numbers = snapshot.mode == EditorMode::Full;
1432 let mut line_number_layouts = Vec::with_capacity(rows.len());
1433 let mut fold_statuses = Vec::with_capacity(rows.len());
1434 let mut line_number = String::new();
1435 let is_relative = EditorSettings::get_global(cx).relative_line_numbers;
1436 let relative_to = if is_relative {
1437 Some(newest_selection_head.row())
1438 } else {
1439 None
1440 };
1441
1442 let relative_rows = self.calculate_relative_line_numbers(&snapshot, &rows, relative_to);
1443
1444 for (ix, row) in snapshot
1445 .buffer_rows(rows.start)
1446 .take((rows.end - rows.start) as usize)
1447 .enumerate()
1448 {
1449 let display_row = rows.start + ix as u32;
1450 let (active, color) = if active_rows.contains_key(&display_row) {
1451 (true, cx.theme().colors().editor_active_line_number)
1452 } else {
1453 (false, cx.theme().colors().editor_line_number)
1454 };
1455 if let Some(buffer_row) = row {
1456 if include_line_numbers {
1457 line_number.clear();
1458 let default_number = buffer_row + 1;
1459 let number = relative_rows
1460 .get(&(ix as u32 + rows.start))
1461 .unwrap_or(&default_number);
1462 write!(&mut line_number, "{}", number).unwrap();
1463 let run = TextRun {
1464 len: line_number.len(),
1465 font: self.style.text.font(),
1466 color,
1467 underline: None,
1468 };
1469 let layout = cx
1470 .text_system()
1471 .layout_text(&line_number, font_size, &[run], None)
1472 .unwrap()
1473 .pop()
1474 .unwrap();
1475 line_number_layouts.push(Some(layout));
1476 fold_statuses.push(
1477 is_singleton
1478 .then(|| {
1479 snapshot
1480 .fold_for_line(buffer_row)
1481 .map(|fold_status| (fold_status, buffer_row, active))
1482 })
1483 .flatten(),
1484 )
1485 }
1486 } else {
1487 fold_statuses.push(None);
1488 line_number_layouts.push(None);
1489 }
1490 }
1491
1492 (line_number_layouts, fold_statuses)
1493 }
1494
1495 fn layout_lines(
1496 &mut self,
1497 rows: Range<u32>,
1498 line_number_layouts: &[Option<Line>],
1499 snapshot: &EditorSnapshot,
1500 cx: &ViewContext<Editor>,
1501 ) -> Vec<LineWithInvisibles> {
1502 if rows.start >= rows.end {
1503 return Vec::new();
1504 }
1505
1506 // When the editor is empty and unfocused, then show the placeholder.
1507 if snapshot.is_empty() {
1508 let font_size = self.style.text.font_size.to_pixels(cx.rem_size());
1509 let placeholder_color = cx.theme().styles.colors.text_placeholder;
1510 let placeholder_text = snapshot.placeholder_text();
1511 let placeholder_lines = placeholder_text
1512 .as_ref()
1513 .map_or("", AsRef::as_ref)
1514 .split('\n')
1515 .skip(rows.start as usize)
1516 .chain(iter::repeat(""))
1517 .take(rows.len());
1518 placeholder_lines
1519 .map(|line| {
1520 let run = TextRun {
1521 len: line.len(),
1522 font: self.style.text.font(),
1523 color: placeholder_color,
1524 underline: Default::default(),
1525 };
1526 cx.text_system()
1527 .layout_text(line, font_size, &[run], None)
1528 .unwrap()
1529 .pop()
1530 .unwrap()
1531 })
1532 .map(|line| LineWithInvisibles {
1533 line,
1534 invisibles: Vec::new(),
1535 })
1536 .collect()
1537 } else {
1538 let chunks = snapshot.highlighted_chunks(rows.clone(), true, &self.style);
1539 LineWithInvisibles::from_chunks(
1540 chunks,
1541 &self.style.text,
1542 MAX_LINE_LEN,
1543 rows.len() as usize,
1544 line_number_layouts,
1545 snapshot.mode,
1546 cx,
1547 )
1548 }
1549 }
1550
1551 fn compute_layout(
1552 &mut self,
1553 editor: &mut Editor,
1554 cx: &mut ViewContext<'_, Editor>,
1555 mut bounds: Bounds<Pixels>,
1556 ) -> LayoutState {
1557 // let mut size = constraint.max;
1558 // if size.x.is_infinite() {
1559 // unimplemented!("we don't yet handle an infinite width constraint on buffer elements");
1560 // }
1561
1562 let snapshot = editor.snapshot(cx);
1563 let style = self.style.clone();
1564 let font_id = cx.text_system().font_id(&style.text.font()).unwrap();
1565 let font_size = style.text.font_size.to_pixels(cx.rem_size());
1566 let line_height = style.text.line_height_in_pixels(cx.rem_size());
1567 let em_width = cx
1568 .text_system()
1569 .typographic_bounds(font_id, font_size, 'm')
1570 .unwrap()
1571 .size
1572 .width;
1573 let em_advance = cx
1574 .text_system()
1575 .advance(font_id, font_size, 'm')
1576 .unwrap()
1577 .width;
1578
1579 let gutter_padding;
1580 let gutter_width;
1581 let gutter_margin;
1582 if snapshot.show_gutter {
1583 let descent = cx.text_system().descent(font_id, font_size).unwrap();
1584
1585 let gutter_padding_factor = 3.5;
1586 gutter_padding = (em_width * gutter_padding_factor).round();
1587 gutter_width = self.max_line_number_width(&snapshot, cx) + gutter_padding * 2.0;
1588 gutter_margin = -descent;
1589 } else {
1590 gutter_padding = Pixels::ZERO;
1591 gutter_width = Pixels::ZERO;
1592 gutter_margin = Pixels::ZERO;
1593 };
1594
1595 let text_width = bounds.size.width - gutter_width;
1596 let overscroll = size(em_width, px(0.));
1597 let snapshot = {
1598 editor.set_visible_line_count((bounds.size.height / line_height).into(), cx);
1599
1600 let editor_width = text_width - gutter_margin - overscroll.width - em_width;
1601 let wrap_width = match editor.soft_wrap_mode(cx) {
1602 SoftWrap::None => (MAX_LINE_LEN / 2) as f32 * em_advance,
1603 SoftWrap::EditorWidth => editor_width,
1604 SoftWrap::Column(column) => editor_width.min(column as f32 * em_advance),
1605 };
1606
1607 if editor.set_wrap_width(Some(wrap_width), cx) {
1608 editor.snapshot(cx)
1609 } else {
1610 snapshot
1611 }
1612 };
1613
1614 let wrap_guides = editor
1615 .wrap_guides(cx)
1616 .iter()
1617 .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
1618 .collect::<SmallVec<[_; 2]>>();
1619
1620 let scroll_height = Pixels::from(snapshot.max_point().row() + 1) * line_height;
1621 // todo!("this should happen during layout")
1622 let editor_mode = snapshot.mode;
1623 if let EditorMode::AutoHeight { max_lines } = editor_mode {
1624 todo!()
1625 // size.set_y(
1626 // scroll_height
1627 // .min(constraint.max_along(Axis::Vertical))
1628 // .max(constraint.min_along(Axis::Vertical))
1629 // .max(line_height)
1630 // .min(line_height * max_lines as f32),
1631 // )
1632 } else if let EditorMode::SingleLine = editor_mode {
1633 bounds.size.height = line_height.min(bounds.size.height);
1634 }
1635 // todo!()
1636 // else if size.y.is_infinite() {
1637 // // size.set_y(scroll_height);
1638 // }
1639 //
1640 let gutter_size = size(gutter_width, bounds.size.height);
1641 let text_size = size(text_width, bounds.size.height);
1642
1643 let autoscroll_horizontally =
1644 editor.autoscroll_vertically(bounds.size.height, line_height, cx);
1645 let mut snapshot = editor.snapshot(cx);
1646
1647 let scroll_position = snapshot.scroll_position();
1648 // The scroll position is a fractional point, the whole number of which represents
1649 // the top of the window in terms of display rows.
1650 let start_row = scroll_position.y as u32;
1651 let height_in_lines = f32::from(bounds.size.height / line_height);
1652 let max_row = snapshot.max_point().row();
1653
1654 // Add 1 to ensure selections bleed off screen
1655 let end_row = 1 + cmp::min((scroll_position.y + height_in_lines).ceil() as u32, max_row);
1656
1657 let start_anchor = if start_row == 0 {
1658 Anchor::min()
1659 } else {
1660 snapshot
1661 .buffer_snapshot
1662 .anchor_before(DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left))
1663 };
1664 let end_anchor = if end_row > max_row {
1665 Anchor::max()
1666 } else {
1667 snapshot
1668 .buffer_snapshot
1669 .anchor_before(DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right))
1670 };
1671
1672 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1673 let mut active_rows = BTreeMap::new();
1674 let mut fold_ranges = Vec::new();
1675 let is_singleton = editor.is_singleton(cx);
1676
1677 let highlighted_rows = editor.highlighted_rows();
1678 let highlighted_ranges = editor.background_highlights_in_range(
1679 start_anchor..end_anchor,
1680 &snapshot.display_snapshot,
1681 cx.theme().colors(),
1682 );
1683
1684 fold_ranges.extend(
1685 snapshot
1686 .folds_in_range(start_anchor..end_anchor)
1687 .map(|anchor| {
1688 let start = anchor.start.to_point(&snapshot.buffer_snapshot);
1689 (
1690 start.row,
1691 start.to_display_point(&snapshot.display_snapshot)
1692 ..anchor.end.to_display_point(&snapshot),
1693 )
1694 }),
1695 );
1696
1697 let mut newest_selection_head = None;
1698
1699 if editor.show_local_selections {
1700 let mut local_selections: Vec<Selection<Point>> = editor
1701 .selections
1702 .disjoint_in_range(start_anchor..end_anchor, cx);
1703 local_selections.extend(editor.selections.pending(cx));
1704 let mut layouts = Vec::new();
1705 let newest = editor.selections.newest(cx);
1706 for selection in local_selections.drain(..) {
1707 let is_empty = selection.start == selection.end;
1708 let is_newest = selection == newest;
1709
1710 let layout = SelectionLayout::new(
1711 selection,
1712 editor.selections.line_mode,
1713 editor.cursor_shape,
1714 &snapshot.display_snapshot,
1715 is_newest,
1716 true,
1717 );
1718 if is_newest {
1719 newest_selection_head = Some(layout.head);
1720 }
1721
1722 for row in cmp::max(layout.active_rows.start, start_row)
1723 ..=cmp::min(layout.active_rows.end, end_row)
1724 {
1725 let contains_non_empty_selection = active_rows.entry(row).or_insert(!is_empty);
1726 *contains_non_empty_selection |= !is_empty;
1727 }
1728 layouts.push(layout);
1729 }
1730
1731 selections.push((style.local_player, layouts));
1732 }
1733
1734 if let Some(collaboration_hub) = &editor.collaboration_hub {
1735 // When following someone, render the local selections in their color.
1736 if let Some(leader_id) = editor.leader_peer_id {
1737 if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id) {
1738 if let Some(participant_index) = collaboration_hub
1739 .user_participant_indices(cx)
1740 .get(&collaborator.user_id)
1741 {
1742 if let Some((local_selection_style, _)) = selections.first_mut() {
1743 *local_selection_style = cx
1744 .theme()
1745 .players()
1746 .color_for_participant(participant_index.0);
1747 }
1748 }
1749 }
1750 }
1751
1752 let mut remote_selections = HashMap::default();
1753 for selection in snapshot.remote_selections_in_range(
1754 &(start_anchor..end_anchor),
1755 collaboration_hub.as_ref(),
1756 cx,
1757 ) {
1758 let selection_style = if let Some(participant_index) = selection.participant_index {
1759 cx.theme()
1760 .players()
1761 .color_for_participant(participant_index.0)
1762 } else {
1763 cx.theme().players().absent()
1764 };
1765
1766 // Don't re-render the leader's selections, since the local selections
1767 // match theirs.
1768 if Some(selection.peer_id) == editor.leader_peer_id {
1769 continue;
1770 }
1771
1772 remote_selections
1773 .entry(selection.replica_id)
1774 .or_insert((selection_style, Vec::new()))
1775 .1
1776 .push(SelectionLayout::new(
1777 selection.selection,
1778 selection.line_mode,
1779 selection.cursor_shape,
1780 &snapshot.display_snapshot,
1781 false,
1782 false,
1783 ));
1784 }
1785
1786 selections.extend(remote_selections.into_values());
1787 }
1788
1789 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
1790 let show_scrollbars = match scrollbar_settings.show {
1791 ShowScrollbar::Auto => {
1792 // Git
1793 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
1794 ||
1795 // Selections
1796 (is_singleton && scrollbar_settings.selections && !highlighted_ranges.is_empty())
1797 // Scrollmanager
1798 || editor.scroll_manager.scrollbars_visible()
1799 }
1800 ShowScrollbar::System => editor.scroll_manager.scrollbars_visible(),
1801 ShowScrollbar::Always => true,
1802 ShowScrollbar::Never => false,
1803 };
1804
1805 let fold_ranges: Vec<(BufferRow, Range<DisplayPoint>, Hsla)> = fold_ranges
1806 .into_iter()
1807 .map(|(id, fold)| {
1808 todo!("folds!")
1809 // let color = self
1810 // .style
1811 // .folds
1812 // .ellipses
1813 // .background
1814 // .style_for(&mut cx.mouse_state::<FoldMarkers>(id as usize))
1815 // .color;
1816
1817 // (id, fold, color)
1818 })
1819 .collect();
1820
1821 let head_for_relative = newest_selection_head.unwrap_or_else(|| {
1822 let newest = editor.selections.newest::<Point>(cx);
1823 SelectionLayout::new(
1824 newest,
1825 editor.selections.line_mode,
1826 editor.cursor_shape,
1827 &snapshot.display_snapshot,
1828 true,
1829 true,
1830 )
1831 .head
1832 });
1833
1834 let (line_number_layouts, fold_statuses) = self.layout_line_numbers(
1835 start_row..end_row,
1836 &active_rows,
1837 head_for_relative,
1838 is_singleton,
1839 &snapshot,
1840 cx,
1841 );
1842
1843 let display_hunks = self.layout_git_gutters(start_row..end_row, &snapshot);
1844
1845 let scrollbar_row_range = scroll_position.y..(scroll_position.y + height_in_lines);
1846
1847 let mut max_visible_line_width = Pixels::ZERO;
1848 let line_layouts =
1849 self.layout_lines(start_row..end_row, &line_number_layouts, &snapshot, cx);
1850 for line_with_invisibles in &line_layouts {
1851 if line_with_invisibles.line.width > max_visible_line_width {
1852 max_visible_line_width = line_with_invisibles.line.width;
1853 }
1854 }
1855
1856 let longest_line_width = layout_line(snapshot.longest_row(), &snapshot, &style, cx)
1857 .unwrap()
1858 .width;
1859 let scroll_width = longest_line_width.max(max_visible_line_width) + overscroll.width;
1860 // todo!("blocks")
1861 // let (scroll_width, blocks) = self.layout_blocks(
1862 // start_row..end_row,
1863 // &snapshot,
1864 // size.x,
1865 // scroll_width,
1866 // gutter_padding,
1867 // gutter_width,
1868 // em_width,
1869 // gutter_width + gutter_margin,
1870 // line_height,
1871 // &style,
1872 // &line_layouts,
1873 // editor,
1874 // cx,
1875 // );
1876
1877 let scroll_max = point(
1878 f32::from((scroll_width - text_size.width) / em_width).max(0.0),
1879 max_row as f32,
1880 );
1881
1882 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
1883
1884 let autoscrolled = if autoscroll_horizontally {
1885 editor.autoscroll_horizontally(
1886 start_row,
1887 text_size.width,
1888 scroll_width,
1889 em_width,
1890 &line_layouts,
1891 cx,
1892 )
1893 } else {
1894 false
1895 };
1896
1897 if clamped || autoscrolled {
1898 snapshot = editor.snapshot(cx);
1899 }
1900
1901 // todo!("context menu")
1902 // let mut context_menu = None;
1903 // let mut code_actions_indicator = None;
1904 // if let Some(newest_selection_head) = newest_selection_head {
1905 // if (start_row..end_row).contains(&newest_selection_head.row()) {
1906 // if editor.context_menu_visible() {
1907 // context_menu =
1908 // editor.render_context_menu(newest_selection_head, style.clone(), cx);
1909 // }
1910
1911 // let active = matches!(
1912 // editor.context_menu.read().as_ref(),
1913 // Some(crate::ContextMenu::CodeActions(_))
1914 // );
1915
1916 // code_actions_indicator = editor
1917 // .render_code_actions_indicator(&style, active, cx)
1918 // .map(|indicator| (newest_selection_head.row(), indicator));
1919 // }
1920 // }
1921
1922 let visible_rows = start_row..start_row + line_layouts.len() as u32;
1923 // todo!("hover")
1924 // let mut hover = editor.hover_state.render(
1925 // &snapshot,
1926 // &style,
1927 // visible_rows,
1928 // editor.workspace.as_ref().map(|(w, _)| w.clone()),
1929 // cx,
1930 // );
1931 // let mode = editor.mode;
1932
1933 // todo!("fold_indicators")
1934 // let mut fold_indicators = editor.render_fold_indicators(
1935 // fold_statuses,
1936 // &style,
1937 // editor.gutter_hovered,
1938 // line_height,
1939 // gutter_margin,
1940 // cx,
1941 // );
1942
1943 // todo!("context_menu")
1944 // if let Some((_, context_menu)) = context_menu.as_mut() {
1945 // context_menu.layout(
1946 // SizeConstraint {
1947 // min: gpui::Point::<Pixels>::zero(),
1948 // max: point(
1949 // cx.window_size().x * 0.7,
1950 // (12. * line_height).min((size.y - line_height) / 2.),
1951 // ),
1952 // },
1953 // editor,
1954 // cx,
1955 // );
1956 // }
1957
1958 // todo!("code actions")
1959 // if let Some((_, indicator)) = code_actions_indicator.as_mut() {
1960 // indicator.layout(
1961 // SizeConstraint::strict_along(
1962 // Axis::Vertical,
1963 // line_height * style.code_actions.vertical_scale,
1964 // ),
1965 // editor,
1966 // cx,
1967 // );
1968 // }
1969
1970 // todo!("fold indicators")
1971 // for fold_indicator in fold_indicators.iter_mut() {
1972 // if let Some(indicator) = fold_indicator.as_mut() {
1973 // indicator.layout(
1974 // SizeConstraint::strict_along(
1975 // Axis::Vertical,
1976 // line_height * style.code_actions.vertical_scale,
1977 // ),
1978 // editor,
1979 // cx,
1980 // );
1981 // }
1982 // }
1983
1984 // todo!("hover popovers")
1985 // if let Some((_, hover_popovers)) = hover.as_mut() {
1986 // for hover_popover in hover_popovers.iter_mut() {
1987 // hover_popover.layout(
1988 // SizeConstraint {
1989 // min: gpui::Point::<Pixels>::zero(),
1990 // max: point(
1991 // (120. * em_width) // Default size
1992 // .min(size.x / 2.) // Shrink to half of the editor width
1993 // .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
1994 // (16. * line_height) // Default size
1995 // .min(size.y / 2.) // Shrink to half of the editor height
1996 // .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
1997 // ),
1998 // },
1999 // editor,
2000 // cx,
2001 // );
2002 // }
2003 // }
2004
2005 let invisible_symbol_font_size = font_size / 2.;
2006 let tab_invisible = cx
2007 .text_system()
2008 .layout_text(
2009 "→",
2010 invisible_symbol_font_size,
2011 &[TextRun {
2012 len: "→".len(),
2013 font: self.style.text.font(),
2014 color: cx.theme().colors().editor_invisible,
2015 underline: None,
2016 }],
2017 None,
2018 )
2019 .unwrap()
2020 .pop()
2021 .unwrap();
2022 let space_invisible = cx
2023 .text_system()
2024 .layout_text(
2025 "•",
2026 invisible_symbol_font_size,
2027 &[TextRun {
2028 len: "•".len(),
2029 font: self.style.text.font(),
2030 color: cx.theme().colors().editor_invisible,
2031 underline: None,
2032 }],
2033 None,
2034 )
2035 .unwrap()
2036 .pop()
2037 .unwrap();
2038
2039 LayoutState {
2040 mode: editor_mode,
2041 position_map: Arc::new(PositionMap {
2042 size: bounds.size,
2043 scroll_max,
2044 line_layouts,
2045 line_height,
2046 em_width,
2047 em_advance,
2048 snapshot,
2049 }),
2050 visible_display_row_range: start_row..end_row,
2051 wrap_guides,
2052 gutter_size,
2053 gutter_padding,
2054 text_size,
2055 scrollbar_row_range,
2056 show_scrollbars,
2057 is_singleton,
2058 max_row,
2059 gutter_margin,
2060 active_rows,
2061 highlighted_rows,
2062 highlighted_ranges,
2063 fold_ranges,
2064 line_number_layouts,
2065 display_hunks,
2066 // blocks,
2067 selections,
2068 // context_menu,
2069 // code_actions_indicator,
2070 // fold_indicators,
2071 tab_invisible,
2072 space_invisible,
2073 // hover_popovers: hover,
2074 }
2075 }
2076
2077 // #[allow(clippy::too_many_arguments)]
2078 // fn layout_blocks(
2079 // &mut self,
2080 // rows: Range<u32>,
2081 // snapshot: &EditorSnapshot,
2082 // editor_width: f32,
2083 // scroll_width: f32,
2084 // gutter_padding: f32,
2085 // gutter_width: f32,
2086 // em_width: f32,
2087 // text_x: f32,
2088 // line_height: f32,
2089 // style: &EditorStyle,
2090 // line_layouts: &[LineWithInvisibles],
2091 // editor: &mut Editor,
2092 // cx: &mut ViewContext<Editor>,
2093 // ) -> (f32, Vec<BlockLayout>) {
2094 // let mut block_id = 0;
2095 // let scroll_x = snapshot.scroll_anchor.offset.x;
2096 // let (fixed_blocks, non_fixed_blocks) = snapshot
2097 // .blocks_in_range(rows.clone())
2098 // .partition::<Vec<_>, _>(|(_, block)| match block {
2099 // TransformBlock::ExcerptHeader { .. } => false,
2100 // TransformBlock::Custom(block) => block.style() == BlockStyle::Fixed,
2101 // });
2102 // let mut render_block = |block: &TransformBlock, width: f32, block_id: usize| {
2103 // let mut element = match block {
2104 // TransformBlock::Custom(block) => {
2105 // let align_to = block
2106 // .position()
2107 // .to_point(&snapshot.buffer_snapshot)
2108 // .to_display_point(snapshot);
2109 // let anchor_x = text_x
2110 // + if rows.contains(&align_to.row()) {
2111 // line_layouts[(align_to.row() - rows.start) as usize]
2112 // .line
2113 // .x_for_index(align_to.column() as usize)
2114 // } else {
2115 // layout_line(align_to.row(), snapshot, style, cx.text_layout_cache())
2116 // .x_for_index(align_to.column() as usize)
2117 // };
2118
2119 // block.render(&mut BlockContext {
2120 // view_context: cx,
2121 // anchor_x,
2122 // gutter_padding,
2123 // line_height,
2124 // scroll_x,
2125 // gutter_width,
2126 // em_width,
2127 // block_id,
2128 // })
2129 // }
2130 // TransformBlock::ExcerptHeader {
2131 // id,
2132 // buffer,
2133 // range,
2134 // starts_new_buffer,
2135 // ..
2136 // } => {
2137 // let tooltip_style = theme::current(cx).tooltip.clone();
2138 // let include_root = editor
2139 // .project
2140 // .as_ref()
2141 // .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
2142 // .unwrap_or_default();
2143 // let jump_icon = project::File::from_dyn(buffer.file()).map(|file| {
2144 // let jump_path = ProjectPath {
2145 // worktree_id: file.worktree_id(cx),
2146 // path: file.path.clone(),
2147 // };
2148 // let jump_anchor = range
2149 // .primary
2150 // .as_ref()
2151 // .map_or(range.context.start, |primary| primary.start);
2152 // let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
2153
2154 // enum JumpIcon {}
2155 // MouseEventHandler::new::<JumpIcon, _>((*id).into(), cx, |state, _| {
2156 // let style = style.jump_icon.style_for(state);
2157 // Svg::new("icons/arrow_up_right.svg")
2158 // .with_color(style.color)
2159 // .constrained()
2160 // .with_width(style.icon_width)
2161 // .aligned()
2162 // .contained()
2163 // .with_style(style.container)
2164 // .constrained()
2165 // .with_width(style.button_width)
2166 // .with_height(style.button_width)
2167 // })
2168 // .with_cursor_style(CursorStyle::PointingHand)
2169 // .on_click(MouseButton::Left, move |_, editor, cx| {
2170 // if let Some(workspace) = editor
2171 // .workspace
2172 // .as_ref()
2173 // .and_then(|(workspace, _)| workspace.upgrade(cx))
2174 // {
2175 // workspace.update(cx, |workspace, cx| {
2176 // Editor::jump(
2177 // workspace,
2178 // jump_path.clone(),
2179 // jump_position,
2180 // jump_anchor,
2181 // cx,
2182 // );
2183 // });
2184 // }
2185 // })
2186 // .with_tooltip::<JumpIcon>(
2187 // (*id).into(),
2188 // "Jump to Buffer".to_string(),
2189 // Some(Box::new(crate::OpenExcerpts)),
2190 // tooltip_style.clone(),
2191 // cx,
2192 // )
2193 // .aligned()
2194 // .flex_float()
2195 // });
2196
2197 // if *starts_new_buffer {
2198 // let editor_font_size = style.text.font_size;
2199 // let style = &style.diagnostic_path_header;
2200 // let font_size = (style.text_scale_factor * editor_font_size).round();
2201
2202 // let path = buffer.resolve_file_path(cx, include_root);
2203 // let mut filename = None;
2204 // let mut parent_path = None;
2205 // // Can't use .and_then() because `.file_name()` and `.parent()` return references :(
2206 // if let Some(path) = path {
2207 // filename = path.file_name().map(|f| f.to_string_lossy.to_string());
2208 // parent_path =
2209 // path.parent().map(|p| p.to_string_lossy.to_string() + "/");
2210 // }
2211
2212 // Flex::row()
2213 // .with_child(
2214 // Label::new(
2215 // filename.unwrap_or_else(|| "untitled".to_string()),
2216 // style.filename.text.clone().with_font_size(font_size),
2217 // )
2218 // .contained()
2219 // .with_style(style.filename.container)
2220 // .aligned(),
2221 // )
2222 // .with_children(parent_path.map(|path| {
2223 // Label::new(path, style.path.text.clone().with_font_size(font_size))
2224 // .contained()
2225 // .with_style(style.path.container)
2226 // .aligned()
2227 // }))
2228 // .with_children(jump_icon)
2229 // .contained()
2230 // .with_style(style.container)
2231 // .with_padding_left(gutter_padding)
2232 // .with_padding_right(gutter_padding)
2233 // .expanded()
2234 // .into_any_named("path header block")
2235 // } else {
2236 // let text_style = style.text.clone();
2237 // Flex::row()
2238 // .with_child(Label::new("⋯", text_style))
2239 // .with_children(jump_icon)
2240 // .contained()
2241 // .with_padding_left(gutter_padding)
2242 // .with_padding_right(gutter_padding)
2243 // .expanded()
2244 // .into_any_named("collapsed context")
2245 // }
2246 // }
2247 // };
2248
2249 // element.layout(
2250 // SizeConstraint {
2251 // min: gpui::Point::<Pixels>::zero(),
2252 // max: point(width, block.height() as f32 * line_height),
2253 // },
2254 // editor,
2255 // cx,
2256 // );
2257 // element
2258 // };
2259
2260 // let mut fixed_block_max_width = 0f32;
2261 // let mut blocks = Vec::new();
2262 // for (row, block) in fixed_blocks {
2263 // let element = render_block(block, f32::INFINITY, block_id);
2264 // block_id += 1;
2265 // fixed_block_max_width = fixed_block_max_width.max(element.size().x + em_width);
2266 // blocks.push(BlockLayout {
2267 // row,
2268 // element,
2269 // style: BlockStyle::Fixed,
2270 // });
2271 // }
2272 // for (row, block) in non_fixed_blocks {
2273 // let style = match block {
2274 // TransformBlock::Custom(block) => block.style(),
2275 // TransformBlock::ExcerptHeader { .. } => BlockStyle::Sticky,
2276 // };
2277 // let width = match style {
2278 // BlockStyle::Sticky => editor_width,
2279 // BlockStyle::Flex => editor_width
2280 // .max(fixed_block_max_width)
2281 // .max(gutter_width + scroll_width),
2282 // BlockStyle::Fixed => unreachable!(),
2283 // };
2284 // let element = render_block(block, width, block_id);
2285 // block_id += 1;
2286 // blocks.push(BlockLayout {
2287 // row,
2288 // element,
2289 // style,
2290 // });
2291 // }
2292 // (
2293 // scroll_width.max(fixed_block_max_width - gutter_width),
2294 // blocks,
2295 // )
2296 // }
2297
2298 fn paint_mouse_listeners(
2299 &mut self,
2300 bounds: Bounds<Pixels>,
2301 gutter_bounds: Bounds<Pixels>,
2302 text_bounds: Bounds<Pixels>,
2303 position_map: &Arc<PositionMap>,
2304 cx: &mut ViewContext<Editor>,
2305 ) {
2306 cx.on_mouse_event({
2307 let position_map = position_map.clone();
2308 move |editor, event: &ScrollWheelEvent, phase, cx| {
2309 if phase != DispatchPhase::Bubble {
2310 return;
2311 }
2312
2313 if Self::scroll(editor, event, &position_map, bounds, cx) {
2314 cx.stop_propagation();
2315 }
2316 }
2317 });
2318 cx.on_mouse_event({
2319 let position_map = position_map.clone();
2320 move |editor, event: &MouseMoveEvent, phase, cx| {
2321 if phase != DispatchPhase::Bubble {
2322 return;
2323 }
2324
2325 if Self::mouse_moved(editor, event, &position_map, text_bounds, cx) {
2326 cx.stop_propagation()
2327 }
2328 }
2329 });
2330 cx.on_mouse_event({
2331 let position_map = position_map.clone();
2332 move |editor, event: &MouseDownEvent, phase, cx| {
2333 if phase != DispatchPhase::Bubble {
2334 return;
2335 }
2336
2337 if Self::mouse_down(editor, event, &position_map, text_bounds, gutter_bounds, cx) {
2338 cx.stop_propagation()
2339 }
2340 }
2341 });
2342 }
2343}
2344
2345#[derive(Debug)]
2346pub struct LineWithInvisibles {
2347 pub line: Line,
2348 invisibles: Vec<Invisible>,
2349}
2350
2351impl LineWithInvisibles {
2352 fn from_chunks<'a>(
2353 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
2354 text_style: &TextStyle,
2355 max_line_len: usize,
2356 max_line_count: usize,
2357 line_number_layouts: &[Option<Line>],
2358 editor_mode: EditorMode,
2359 cx: &WindowContext,
2360 ) -> Vec<Self> {
2361 let mut layouts = Vec::with_capacity(max_line_count);
2362 let mut line = String::new();
2363 let mut invisibles = Vec::new();
2364 let mut styles = Vec::new();
2365 let mut non_whitespace_added = false;
2366 let mut row = 0;
2367 let mut line_exceeded_max_len = false;
2368 let font_size = text_style.font_size.to_pixels(cx.rem_size());
2369
2370 for highlighted_chunk in chunks.chain([HighlightedChunk {
2371 chunk: "\n",
2372 style: None,
2373 is_tab: false,
2374 }]) {
2375 for (ix, mut line_chunk) in highlighted_chunk.chunk.split('\n').enumerate() {
2376 if ix > 0 {
2377 let layout = cx
2378 .text_system()
2379 .layout_text(&line, font_size, &styles, None);
2380 layouts.push(Self {
2381 line: layout.unwrap().pop().unwrap(),
2382 invisibles: invisibles.drain(..).collect(),
2383 });
2384
2385 line.clear();
2386 styles.clear();
2387 row += 1;
2388 line_exceeded_max_len = false;
2389 non_whitespace_added = false;
2390 if row == max_line_count {
2391 return layouts;
2392 }
2393 }
2394
2395 if !line_chunk.is_empty() && !line_exceeded_max_len {
2396 let text_style = if let Some(style) = highlighted_chunk.style {
2397 text_style
2398 .clone()
2399 .highlight(style)
2400 .map(Cow::Owned)
2401 .unwrap_or_else(|_| Cow::Borrowed(text_style))
2402 } else {
2403 Cow::Borrowed(text_style)
2404 };
2405
2406 if line.len() + line_chunk.len() > max_line_len {
2407 let mut chunk_len = max_line_len - line.len();
2408 while !line_chunk.is_char_boundary(chunk_len) {
2409 chunk_len -= 1;
2410 }
2411 line_chunk = &line_chunk[..chunk_len];
2412 line_exceeded_max_len = true;
2413 }
2414
2415 styles.push(TextRun {
2416 len: line_chunk.len(),
2417 font: text_style.font(),
2418 color: text_style.color,
2419 underline: text_style.underline,
2420 });
2421
2422 if editor_mode == EditorMode::Full {
2423 // Line wrap pads its contents with fake whitespaces,
2424 // avoid printing them
2425 let inside_wrapped_string = line_number_layouts
2426 .get(row)
2427 .and_then(|layout| layout.as_ref())
2428 .is_none();
2429 if highlighted_chunk.is_tab {
2430 if non_whitespace_added || !inside_wrapped_string {
2431 invisibles.push(Invisible::Tab {
2432 line_start_offset: line.len(),
2433 });
2434 }
2435 } else {
2436 invisibles.extend(
2437 line_chunk
2438 .chars()
2439 .enumerate()
2440 .filter(|(_, line_char)| {
2441 let is_whitespace = line_char.is_whitespace();
2442 non_whitespace_added |= !is_whitespace;
2443 is_whitespace
2444 && (non_whitespace_added || !inside_wrapped_string)
2445 })
2446 .map(|(whitespace_index, _)| Invisible::Whitespace {
2447 line_offset: line.len() + whitespace_index,
2448 }),
2449 )
2450 }
2451 }
2452
2453 line.push_str(line_chunk);
2454 }
2455 }
2456 }
2457
2458 layouts
2459 }
2460
2461 fn draw(
2462 &self,
2463 layout: &LayoutState,
2464 row: u32,
2465 scroll_top: Pixels,
2466 content_origin: gpui::Point<Pixels>,
2467 scroll_left: Pixels,
2468 whitespace_setting: ShowWhitespaceSetting,
2469 selection_ranges: &[Range<DisplayPoint>],
2470 cx: &mut ViewContext<Editor>,
2471 ) {
2472 let line_height = layout.position_map.line_height;
2473 let line_y = line_height * row as f32 - scroll_top;
2474
2475 self.line.paint(
2476 content_origin + gpui::point(-scroll_left, line_y),
2477 line_height,
2478 cx,
2479 );
2480
2481 self.draw_invisibles(
2482 &selection_ranges,
2483 layout,
2484 content_origin,
2485 scroll_left,
2486 line_y,
2487 row,
2488 line_height,
2489 whitespace_setting,
2490 cx,
2491 );
2492 }
2493
2494 fn draw_invisibles(
2495 &self,
2496 selection_ranges: &[Range<DisplayPoint>],
2497 layout: &LayoutState,
2498 content_origin: gpui::Point<Pixels>,
2499 scroll_left: Pixels,
2500 line_y: Pixels,
2501 row: u32,
2502 line_height: Pixels,
2503 whitespace_setting: ShowWhitespaceSetting,
2504 cx: &mut ViewContext<Editor>,
2505 ) {
2506 let allowed_invisibles_regions = match whitespace_setting {
2507 ShowWhitespaceSetting::None => return,
2508 ShowWhitespaceSetting::Selection => Some(selection_ranges),
2509 ShowWhitespaceSetting::All => None,
2510 };
2511
2512 for invisible in &self.invisibles {
2513 let (&token_offset, invisible_symbol) = match invisible {
2514 Invisible::Tab { line_start_offset } => (line_start_offset, &layout.tab_invisible),
2515 Invisible::Whitespace { line_offset } => (line_offset, &layout.space_invisible),
2516 };
2517
2518 let x_offset = self.line.x_for_index(token_offset);
2519 let invisible_offset =
2520 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
2521 let origin =
2522 content_origin + gpui::point(-scroll_left + x_offset + invisible_offset, line_y);
2523
2524 if let Some(allowed_regions) = allowed_invisibles_regions {
2525 let invisible_point = DisplayPoint::new(row, token_offset as u32);
2526 if !allowed_regions
2527 .iter()
2528 .any(|region| region.start <= invisible_point && invisible_point < region.end)
2529 {
2530 continue;
2531 }
2532 }
2533 invisible_symbol.paint(origin, line_height, cx);
2534 }
2535 }
2536}
2537
2538#[derive(Debug, Clone, Copy, PartialEq, Eq)]
2539enum Invisible {
2540 Tab { line_start_offset: usize },
2541 Whitespace { line_offset: usize },
2542}
2543
2544impl Element<Editor> for EditorElement {
2545 type ElementState = ();
2546
2547 fn id(&self) -> Option<gpui::ElementId> {
2548 None
2549 }
2550
2551 fn initialize(
2552 &mut self,
2553 editor: &mut Editor,
2554 element_state: Option<Self::ElementState>,
2555 cx: &mut gpui::ViewContext<Editor>,
2556 ) -> Self::ElementState {
2557 editor.style = Some(self.style.clone()); // Long-term, we'd like to eliminate this.
2558
2559 let dispatch_context = editor.dispatch_context(cx);
2560 cx.with_element_id(cx.view().entity_id(), |global_id, cx| {
2561 cx.with_key_dispatch_context(dispatch_context, |cx| {
2562 cx.with_key_listeners(build_key_listeners(global_id), |cx| {
2563 cx.with_focus(editor.focus_handle.clone(), |_| {})
2564 });
2565 })
2566 });
2567 }
2568
2569 fn layout(
2570 &mut self,
2571 editor: &mut Editor,
2572 element_state: &mut Self::ElementState,
2573 cx: &mut gpui::ViewContext<Editor>,
2574 ) -> gpui::LayoutId {
2575 let rem_size = cx.rem_size();
2576 let mut style = Style::default();
2577 style.size.width = relative(1.).into();
2578 style.size.height = match editor.mode {
2579 EditorMode::SingleLine => self.style.text.line_height_in_pixels(cx.rem_size()).into(),
2580 EditorMode::AutoHeight { .. } => todo!(),
2581 EditorMode::Full => relative(1.).into(),
2582 };
2583 cx.request_layout(&style, None)
2584 }
2585
2586 fn paint(
2587 &mut self,
2588 bounds: Bounds<gpui::Pixels>,
2589 editor: &mut Editor,
2590 element_state: &mut Self::ElementState,
2591 cx: &mut gpui::ViewContext<Editor>,
2592 ) {
2593 let layout = self.compute_layout(editor, cx, bounds);
2594 let gutter_bounds = Bounds {
2595 origin: bounds.origin,
2596 size: layout.gutter_size,
2597 };
2598 let text_bounds = Bounds {
2599 origin: gutter_bounds.upper_right(),
2600 size: layout.text_size,
2601 };
2602
2603 if editor.focus_handle.is_focused(cx) {
2604 cx.handle_text_input();
2605 }
2606
2607 cx.with_content_mask(ContentMask { bounds }, |cx| {
2608 self.paint_mouse_listeners(
2609 bounds,
2610 gutter_bounds,
2611 text_bounds,
2612 &layout.position_map,
2613 cx,
2614 );
2615 self.paint_background(gutter_bounds, text_bounds, &layout, cx);
2616 if layout.gutter_size.width > Pixels::ZERO {
2617 self.paint_gutter(gutter_bounds, &layout, editor, cx);
2618 }
2619 self.paint_text(text_bounds, &layout, editor, cx);
2620 });
2621 }
2622}
2623
2624// impl EditorElement {
2625// type LayoutState = LayoutState;
2626// type PaintState = ();
2627
2628// fn layout(
2629// &mut self,
2630// constraint: SizeConstraint,
2631// editor: &mut Editor,
2632// cx: &mut ViewContext<Editor>,
2633// ) -> (gpui::Point<Pixels>, Self::LayoutState) {
2634// let mut size = constraint.max;
2635// if size.x.is_infinite() {
2636// unimplemented!("we don't yet handle an infinite width constraint on buffer elements");
2637// }
2638
2639// let snapshot = editor.snapshot(cx);
2640// let style = self.style.clone();
2641
2642// let line_height = (style.text.font_size * style.line_height_scalar).round();
2643
2644// let gutter_padding;
2645// let gutter_width;
2646// let gutter_margin;
2647// if snapshot.show_gutter {
2648// let em_width = style.text.em_width(cx.font_cache());
2649// gutter_padding = (em_width * style.gutter_padding_factor).round();
2650// gutter_width = self.max_line_number_width(&snapshot, cx) + gutter_padding * 2.0;
2651// gutter_margin = -style.text.descent(cx.font_cache());
2652// } else {
2653// gutter_padding = 0.0;
2654// gutter_width = 0.0;
2655// gutter_margin = 0.0;
2656// };
2657
2658// let text_width = size.x - gutter_width;
2659// let em_width = style.text.em_width(cx.font_cache());
2660// let em_advance = style.text.em_advance(cx.font_cache());
2661// let overscroll = point(em_width, 0.);
2662// let snapshot = {
2663// editor.set_visible_line_count(size.y / line_height, cx);
2664
2665// let editor_width = text_width - gutter_margin - overscroll.x - em_width;
2666// let wrap_width = match editor.soft_wrap_mode(cx) {
2667// SoftWrap::None => (MAX_LINE_LEN / 2) as f32 * em_advance,
2668// SoftWrap::EditorWidth => editor_width,
2669// SoftWrap::Column(column) => editor_width.min(column as f32 * em_advance),
2670// };
2671
2672// if editor.set_wrap_width(Some(wrap_width), cx) {
2673// editor.snapshot(cx)
2674// } else {
2675// snapshot
2676// }
2677// };
2678
2679// let wrap_guides = editor
2680// .wrap_guides(cx)
2681// .iter()
2682// .map(|(guide, active)| (self.column_pixels(*guide, cx), *active))
2683// .collect();
2684
2685// let scroll_height = (snapshot.max_point().row() + 1) as f32 * line_height;
2686// if let EditorMode::AutoHeight { max_lines } = snapshot.mode {
2687// size.set_y(
2688// scroll_height
2689// .min(constraint.max_along(Axis::Vertical))
2690// .max(constraint.min_along(Axis::Vertical))
2691// .max(line_height)
2692// .min(line_height * max_lines as f32),
2693// )
2694// } else if let EditorMode::SingleLine = snapshot.mode {
2695// size.set_y(line_height.max(constraint.min_along(Axis::Vertical)))
2696// } else if size.y.is_infinite() {
2697// size.set_y(scroll_height);
2698// }
2699// let gutter_size = point(gutter_width, size.y);
2700// let text_size = point(text_width, size.y);
2701
2702// let autoscroll_horizontally = editor.autoscroll_vertically(size.y, line_height, cx);
2703// let mut snapshot = editor.snapshot(cx);
2704
2705// let scroll_position = snapshot.scroll_position();
2706// // The scroll position is a fractional point, the whole number of which represents
2707// // the top of the window in terms of display rows.
2708// let start_row = scroll_position.y as u32;
2709// let height_in_lines = size.y / line_height;
2710// let max_row = snapshot.max_point().row();
2711
2712// // Add 1 to ensure selections bleed off screen
2713// let end_row = 1 + cmp::min(
2714// (scroll_position.y + height_in_lines).ceil() as u32,
2715// max_row,
2716// );
2717
2718// let start_anchor = if start_row == 0 {
2719// Anchor::min()
2720// } else {
2721// snapshot
2722// .buffer_snapshot
2723// .anchor_before(DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left))
2724// };
2725// let end_anchor = if end_row > max_row {
2726// Anchor::max
2727// } else {
2728// snapshot
2729// .buffer_snapshot
2730// .anchor_before(DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right))
2731// };
2732
2733// let mut selections: Vec<(SelectionStyle, Vec<SelectionLayout>)> = Vec::new();
2734// let mut active_rows = BTreeMap::new();
2735// let mut fold_ranges = Vec::new();
2736// let is_singleton = editor.is_singleton(cx);
2737
2738// let highlighted_rows = editor.highlighted_rows();
2739// let theme = theme::current(cx);
2740// let highlighted_ranges = editor.background_highlights_in_range(
2741// start_anchor..end_anchor,
2742// &snapshot.display_snapshot,
2743// theme.as_ref(),
2744// );
2745
2746// fold_ranges.extend(
2747// snapshot
2748// .folds_in_range(start_anchor..end_anchor)
2749// .map(|anchor| {
2750// let start = anchor.start.to_point(&snapshot.buffer_snapshot);
2751// (
2752// start.row,
2753// start.to_display_point(&snapshot.display_snapshot)
2754// ..anchor.end.to_display_point(&snapshot),
2755// )
2756// }),
2757// );
2758
2759// let mut newest_selection_head = None;
2760
2761// if editor.show_local_selections {
2762// let mut local_selections: Vec<Selection<Point>> = editor
2763// .selections
2764// .disjoint_in_range(start_anchor..end_anchor, cx);
2765// local_selections.extend(editor.selections.pending(cx));
2766// let mut layouts = Vec::new();
2767// let newest = editor.selections.newest(cx);
2768// for selection in local_selections.drain(..) {
2769// let is_empty = selection.start == selection.end;
2770// let is_newest = selection == newest;
2771
2772// let layout = SelectionLayout::new(
2773// selection,
2774// editor.selections.line_mode,
2775// editor.cursor_shape,
2776// &snapshot.display_snapshot,
2777// is_newest,
2778// true,
2779// );
2780// if is_newest {
2781// newest_selection_head = Some(layout.head);
2782// }
2783
2784// for row in cmp::max(layout.active_rows.start, start_row)
2785// ..=cmp::min(layout.active_rows.end, end_row)
2786// {
2787// let contains_non_empty_selection = active_rows.entry(row).or_insert(!is_empty);
2788// *contains_non_empty_selection |= !is_empty;
2789// }
2790// layouts.push(layout);
2791// }
2792
2793// selections.push((style.selection, layouts));
2794// }
2795
2796// if let Some(collaboration_hub) = &editor.collaboration_hub {
2797// // When following someone, render the local selections in their color.
2798// if let Some(leader_id) = editor.leader_peer_id {
2799// if let Some(collaborator) = collaboration_hub.collaborators(cx).get(&leader_id) {
2800// if let Some(participant_index) = collaboration_hub
2801// .user_participant_indices(cx)
2802// .get(&collaborator.user_id)
2803// {
2804// if let Some((local_selection_style, _)) = selections.first_mut() {
2805// *local_selection_style =
2806// style.selection_style_for_room_participant(participant_index.0);
2807// }
2808// }
2809// }
2810// }
2811
2812// let mut remote_selections = HashMap::default();
2813// for selection in snapshot.remote_selections_in_range(
2814// &(start_anchor..end_anchor),
2815// collaboration_hub.as_ref(),
2816// cx,
2817// ) {
2818// let selection_style = if let Some(participant_index) = selection.participant_index {
2819// style.selection_style_for_room_participant(participant_index.0)
2820// } else {
2821// style.absent_selection
2822// };
2823
2824// // Don't re-render the leader's selections, since the local selections
2825// // match theirs.
2826// if Some(selection.peer_id) == editor.leader_peer_id {
2827// continue;
2828// }
2829
2830// remote_selections
2831// .entry(selection.replica_id)
2832// .or_insert((selection_style, Vec::new()))
2833// .1
2834// .push(SelectionLayout::new(
2835// selection.selection,
2836// selection.line_mode,
2837// selection.cursor_shape,
2838// &snapshot.display_snapshot,
2839// false,
2840// false,
2841// ));
2842// }
2843
2844// selections.extend(remote_selections.into_values());
2845// }
2846
2847// let scrollbar_settings = &settings::get::<EditorSettings>(cx).scrollbar;
2848// let show_scrollbars = match scrollbar_settings.show {
2849// ShowScrollbar::Auto => {
2850// // Git
2851// (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_git_diffs())
2852// ||
2853// // Selections
2854// (is_singleton && scrollbar_settings.selections && !highlighted_ranges.is_empty)
2855// // Scrollmanager
2856// || editor.scroll_manager.scrollbars_visible()
2857// }
2858// ShowScrollbar::System => editor.scroll_manager.scrollbars_visible(),
2859// ShowScrollbar::Always => true,
2860// ShowScrollbar::Never => false,
2861// };
2862
2863// let fold_ranges: Vec<(BufferRow, Range<DisplayPoint>, Color)> = fold_ranges
2864// .into_iter()
2865// .map(|(id, fold)| {
2866// let color = self
2867// .style
2868// .folds
2869// .ellipses
2870// .background
2871// .style_for(&mut cx.mouse_state::<FoldMarkers>(id as usize))
2872// .color;
2873
2874// (id, fold, color)
2875// })
2876// .collect();
2877
2878// let head_for_relative = newest_selection_head.unwrap_or_else(|| {
2879// let newest = editor.selections.newest::<Point>(cx);
2880// SelectionLayout::new(
2881// newest,
2882// editor.selections.line_mode,
2883// editor.cursor_shape,
2884// &snapshot.display_snapshot,
2885// true,
2886// true,
2887// )
2888// .head
2889// });
2890
2891// let (line_number_layouts, fold_statuses) = self.layout_line_numbers(
2892// start_row..end_row,
2893// &active_rows,
2894// head_for_relative,
2895// is_singleton,
2896// &snapshot,
2897// cx,
2898// );
2899
2900// let display_hunks = self.layout_git_gutters(start_row..end_row, &snapshot);
2901
2902// let scrollbar_row_range = scroll_position.y..(scroll_position.y + height_in_lines);
2903
2904// let mut max_visible_line_width = 0.0;
2905// let line_layouts =
2906// self.layout_lines(start_row..end_row, &line_number_layouts, &snapshot, cx);
2907// for line_with_invisibles in &line_layouts {
2908// if line_with_invisibles.line.width() > max_visible_line_width {
2909// max_visible_line_width = line_with_invisibles.line.width();
2910// }
2911// }
2912
2913// let style = self.style.clone();
2914// let longest_line_width = layout_line(
2915// snapshot.longest_row(),
2916// &snapshot,
2917// &style,
2918// cx.text_layout_cache(),
2919// )
2920// .width();
2921// let scroll_width = longest_line_width.max(max_visible_line_width) + overscroll.x;
2922// let em_width = style.text.em_width(cx.font_cache());
2923// let (scroll_width, blocks) = self.layout_blocks(
2924// start_row..end_row,
2925// &snapshot,
2926// size.x,
2927// scroll_width,
2928// gutter_padding,
2929// gutter_width,
2930// em_width,
2931// gutter_width + gutter_margin,
2932// line_height,
2933// &style,
2934// &line_layouts,
2935// editor,
2936// cx,
2937// );
2938
2939// let scroll_max = point(
2940// ((scroll_width - text_size.x) / em_width).max(0.0),
2941// max_row as f32,
2942// );
2943
2944// let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
2945
2946// let autoscrolled = if autoscroll_horizontally {
2947// editor.autoscroll_horizontally(
2948// start_row,
2949// text_size.x,
2950// scroll_width,
2951// em_width,
2952// &line_layouts,
2953// cx,
2954// )
2955// } else {
2956// false
2957// };
2958
2959// if clamped || autoscrolled {
2960// snapshot = editor.snapshot(cx);
2961// }
2962
2963// let style = editor.style(cx);
2964
2965// let mut context_menu = None;
2966// let mut code_actions_indicator = None;
2967// if let Some(newest_selection_head) = newest_selection_head {
2968// if (start_row..end_row).contains(&newest_selection_head.row()) {
2969// if editor.context_menu_visible() {
2970// context_menu =
2971// editor.render_context_menu(newest_selection_head, style.clone(), cx);
2972// }
2973
2974// let active = matches!(
2975// editor.context_menu.read().as_ref(),
2976// Some(crate::ContextMenu::CodeActions(_))
2977// );
2978
2979// code_actions_indicator = editor
2980// .render_code_actions_indicator(&style, active, cx)
2981// .map(|indicator| (newest_selection_head.row(), indicator));
2982// }
2983// }
2984
2985// let visible_rows = start_row..start_row + line_layouts.len() as u32;
2986// let mut hover = editor.hover_state.render(
2987// &snapshot,
2988// &style,
2989// visible_rows,
2990// editor.workspace.as_ref().map(|(w, _)| w.clone()),
2991// cx,
2992// );
2993// let mode = editor.mode;
2994
2995// let mut fold_indicators = editor.render_fold_indicators(
2996// fold_statuses,
2997// &style,
2998// editor.gutter_hovered,
2999// line_height,
3000// gutter_margin,
3001// cx,
3002// );
3003
3004// if let Some((_, context_menu)) = context_menu.as_mut() {
3005// context_menu.layout(
3006// SizeConstraint {
3007// min: gpui::Point::<Pixels>::zero(),
3008// max: point(
3009// cx.window_size().x * 0.7,
3010// (12. * line_height).min((size.y - line_height) / 2.),
3011// ),
3012// },
3013// editor,
3014// cx,
3015// );
3016// }
3017
3018// if let Some((_, indicator)) = code_actions_indicator.as_mut() {
3019// indicator.layout(
3020// SizeConstraint::strict_along(
3021// Axis::Vertical,
3022// line_height * style.code_actions.vertical_scale,
3023// ),
3024// editor,
3025// cx,
3026// );
3027// }
3028
3029// for fold_indicator in fold_indicators.iter_mut() {
3030// if let Some(indicator) = fold_indicator.as_mut() {
3031// indicator.layout(
3032// SizeConstraint::strict_along(
3033// Axis::Vertical,
3034// line_height * style.code_actions.vertical_scale,
3035// ),
3036// editor,
3037// cx,
3038// );
3039// }
3040// }
3041
3042// if let Some((_, hover_popovers)) = hover.as_mut() {
3043// for hover_popover in hover_popovers.iter_mut() {
3044// hover_popover.layout(
3045// SizeConstraint {
3046// min: gpui::Point::<Pixels>::zero(),
3047// max: point(
3048// (120. * em_width) // Default size
3049// .min(size.x / 2.) // Shrink to half of the editor width
3050// .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
3051// (16. * line_height) // Default size
3052// .min(size.y / 2.) // Shrink to half of the editor height
3053// .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
3054// ),
3055// },
3056// editor,
3057// cx,
3058// );
3059// }
3060// }
3061
3062// let invisible_symbol_font_size = self.style.text.font_size / 2.0;
3063// let invisible_symbol_style = RunStyle {
3064// color: self.style.whitespace,
3065// font_id: self.style.text.font_id,
3066// underline: Default::default(),
3067// };
3068
3069// (
3070// size,
3071// LayoutState {
3072// mode,
3073// position_map: Arc::new(PositionMap {
3074// size,
3075// scroll_max,
3076// line_layouts,
3077// line_height,
3078// em_width,
3079// em_advance,
3080// snapshot,
3081// }),
3082// visible_display_row_range: start_row..end_row,
3083// wrap_guides,
3084// gutter_size,
3085// gutter_padding,
3086// text_size,
3087// scrollbar_row_range,
3088// show_scrollbars,
3089// is_singleton,
3090// max_row,
3091// gutter_margin,
3092// active_rows,
3093// highlighted_rows,
3094// highlighted_ranges,
3095// fold_ranges,
3096// line_number_layouts,
3097// display_hunks,
3098// blocks,
3099// selections,
3100// context_menu,
3101// code_actions_indicator,
3102// fold_indicators,
3103// tab_invisible: cx.text_layout_cache().layout_str(
3104// "→",
3105// invisible_symbol_font_size,
3106// &[("→".len(), invisible_symbol_style)],
3107// ),
3108// space_invisible: cx.text_layout_cache().layout_str(
3109// "•",
3110// invisible_symbol_font_size,
3111// &[("•".len(), invisible_symbol_style)],
3112// ),
3113// hover_popovers: hover,
3114// },
3115// )
3116// }
3117
3118// fn paint(
3119// &mut self,
3120// bounds: Bounds<Pixels>,
3121// visible_bounds: Bounds<Pixels>,
3122// layout: &mut Self::LayoutState,
3123// editor: &mut Editor,
3124// cx: &mut ViewContext<Editor>,
3125// ) -> Self::PaintState {
3126// let visible_bounds = bounds.intersection(visible_bounds).unwrap_or_default();
3127// cx.scene().push_layer(Some(visible_bounds));
3128
3129// let gutter_bounds = Bounds::<Pixels>::new(bounds.origin, layout.gutter_size);
3130// let text_bounds = Bounds::<Pixels>::new(
3131// bounds.origin + point(layout.gutter_size.x, 0.0),
3132// layout.text_size,
3133// );
3134
3135// Self::attach_mouse_handlers(
3136// &layout.position_map,
3137// layout.hover_popovers.is_some(),
3138// visible_bounds,
3139// text_bounds,
3140// gutter_bounds,
3141// bounds,
3142// cx,
3143// );
3144
3145// self.paint_background(gutter_bounds, text_bounds, layout, cx);
3146// if layout.gutter_size.x > 0. {
3147// self.paint_gutter(gutter_bounds, visible_bounds, layout, editor, cx);
3148// }
3149// self.paint_text(text_bounds, visible_bounds, layout, editor, cx);
3150
3151// cx.scene().push_layer(Some(bounds));
3152// if !layout.blocks.is_empty {
3153// self.paint_blocks(bounds, visible_bounds, layout, editor, cx);
3154// }
3155// self.paint_scrollbar(bounds, layout, &editor, cx);
3156// cx.scene().pop_layer();
3157// cx.scene().pop_layer();
3158// }
3159
3160// fn rect_for_text_range(
3161// &self,
3162// range_utf16: Range<usize>,
3163// bounds: Bounds<Pixels>,
3164// _: Bounds<Pixels>,
3165// layout: &Self::LayoutState,
3166// _: &Self::PaintState,
3167// _: &Editor,
3168// _: &ViewContext<Editor>,
3169// ) -> Option<Bounds<Pixels>> {
3170// let text_bounds = Bounds::<Pixels>::new(
3171// bounds.origin + point(layout.gutter_size.x, 0.0),
3172// layout.text_size,
3173// );
3174// let content_origin = text_bounds.origin + point(layout.gutter_margin, 0.);
3175// let scroll_position = layout.position_map.snapshot.scroll_position();
3176// let start_row = scroll_position.y as u32;
3177// let scroll_top = scroll_position.y * layout.position_map.line_height;
3178// let scroll_left = scroll_position.x * layout.position_map.em_width;
3179
3180// let range_start = OffsetUtf16(range_utf16.start)
3181// .to_display_point(&layout.position_map.snapshot.display_snapshot);
3182// if range_start.row() < start_row {
3183// return None;
3184// }
3185
3186// let line = &layout
3187// .position_map
3188// .line_layouts
3189// .get((range_start.row() - start_row) as usize)?
3190// .line;
3191// let range_start_x = line.x_for_index(range_start.column() as usize);
3192// let range_start_y = range_start.row() as f32 * layout.position_map.line_height;
3193// Some(Bounds::<Pixels>::new(
3194// content_origin
3195// + point(
3196// range_start_x,
3197// range_start_y + layout.position_map.line_height,
3198// )
3199// - point(scroll_left, scroll_top),
3200// point(
3201// layout.position_map.em_width,
3202// layout.position_map.line_height,
3203// ),
3204// ))
3205// }
3206
3207// fn debug(
3208// &self,
3209// bounds: Bounds<Pixels>,
3210// _: &Self::LayoutState,
3211// _: &Self::PaintState,
3212// _: &Editor,
3213// _: &ViewContext<Editor>,
3214// ) -> json::Value {
3215// json!({
3216// "type": "BufferElement",
3217// "bounds": bounds.to_json()
3218// })
3219// }
3220// }
3221
3222type BufferRow = u32;
3223
3224pub struct LayoutState {
3225 position_map: Arc<PositionMap>,
3226 gutter_size: Size<Pixels>,
3227 gutter_padding: Pixels,
3228 gutter_margin: Pixels,
3229 text_size: gpui::Size<Pixels>,
3230 mode: EditorMode,
3231 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
3232 visible_display_row_range: Range<u32>,
3233 active_rows: BTreeMap<u32, bool>,
3234 highlighted_rows: Option<Range<u32>>,
3235 line_number_layouts: Vec<Option<gpui::Line>>,
3236 display_hunks: Vec<DisplayDiffHunk>,
3237 // blocks: Vec<BlockLayout>,
3238 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
3239 fold_ranges: Vec<(BufferRow, Range<DisplayPoint>, Hsla)>,
3240 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
3241 scrollbar_row_range: Range<f32>,
3242 show_scrollbars: bool,
3243 is_singleton: bool,
3244 max_row: u32,
3245 // context_menu: Option<(DisplayPoint, AnyElement<Editor>)>,
3246 // code_actions_indicator: Option<(u32, AnyElement<Editor>)>,
3247 // hover_popovers: Option<(DisplayPoint, Vec<AnyElement<Editor>>)>,
3248 // fold_indicators: Vec<Option<AnyElement<Editor>>>,
3249 tab_invisible: Line,
3250 space_invisible: Line,
3251}
3252
3253struct PositionMap {
3254 size: Size<Pixels>,
3255 line_height: Pixels,
3256 scroll_max: gpui::Point<f32>,
3257 em_width: Pixels,
3258 em_advance: Pixels,
3259 line_layouts: Vec<LineWithInvisibles>,
3260 snapshot: EditorSnapshot,
3261}
3262
3263#[derive(Debug, Copy, Clone)]
3264pub struct PointForPosition {
3265 pub previous_valid: DisplayPoint,
3266 pub next_valid: DisplayPoint,
3267 pub exact_unclipped: DisplayPoint,
3268 pub column_overshoot_after_line_end: u32,
3269}
3270
3271impl PointForPosition {
3272 #[cfg(test)]
3273 pub fn valid(valid: DisplayPoint) -> Self {
3274 Self {
3275 previous_valid: valid,
3276 next_valid: valid,
3277 exact_unclipped: valid,
3278 column_overshoot_after_line_end: 0,
3279 }
3280 }
3281
3282 pub fn as_valid(&self) -> Option<DisplayPoint> {
3283 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
3284 Some(self.previous_valid)
3285 } else {
3286 None
3287 }
3288 }
3289}
3290
3291impl PositionMap {
3292 fn point_for_position(
3293 &self,
3294 text_bounds: Bounds<Pixels>,
3295 position: gpui::Point<Pixels>,
3296 ) -> PointForPosition {
3297 let scroll_position = self.snapshot.scroll_position();
3298 let position = position - text_bounds.origin;
3299 let y = position.y.max(px(0.)).min(self.size.width);
3300 let x = position.x + (scroll_position.x * self.em_width);
3301 let row = (f32::from(y / self.line_height) + scroll_position.y) as u32;
3302
3303 let (column, x_overshoot_after_line_end) = if let Some(line) = self
3304 .line_layouts
3305 .get(row as usize - scroll_position.y as usize)
3306 .map(|&LineWithInvisibles { ref line, .. }| line)
3307 {
3308 if let Some(ix) = line.index_for_x(x) {
3309 (ix as u32, px(0.))
3310 } else {
3311 (line.len as u32, px(0.).max(x - line.width))
3312 }
3313 } else {
3314 (0, x)
3315 };
3316
3317 let mut exact_unclipped = DisplayPoint::new(row, column);
3318 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
3319 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
3320
3321 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance).into();
3322 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
3323 PointForPosition {
3324 previous_valid,
3325 next_valid,
3326 exact_unclipped,
3327 column_overshoot_after_line_end,
3328 }
3329 }
3330}
3331
3332struct BlockLayout {
3333 row: u32,
3334 element: AnyElement<Editor>,
3335 style: BlockStyle,
3336}
3337
3338fn layout_line(
3339 row: u32,
3340 snapshot: &EditorSnapshot,
3341 style: &EditorStyle,
3342 cx: &WindowContext,
3343) -> Result<Line> {
3344 let mut line = snapshot.line(row);
3345
3346 if line.len() > MAX_LINE_LEN {
3347 let mut len = MAX_LINE_LEN;
3348 while !line.is_char_boundary(len) {
3349 len -= 1;
3350 }
3351
3352 line.truncate(len);
3353 }
3354
3355 Ok(cx
3356 .text_system()
3357 .layout_text(
3358 &line,
3359 style.text.font_size.to_pixels(cx.rem_size()),
3360 &[TextRun {
3361 len: snapshot.line_len(row) as usize,
3362 font: style.text.font(),
3363 color: Hsla::default(),
3364 underline: None,
3365 }],
3366 None,
3367 )?
3368 .pop()
3369 .unwrap())
3370}
3371
3372#[derive(Debug)]
3373pub struct Cursor {
3374 origin: gpui::Point<Pixels>,
3375 block_width: Pixels,
3376 line_height: Pixels,
3377 color: Hsla,
3378 shape: CursorShape,
3379 block_text: Option<Line>,
3380}
3381
3382impl Cursor {
3383 pub fn new(
3384 origin: gpui::Point<Pixels>,
3385 block_width: Pixels,
3386 line_height: Pixels,
3387 color: Hsla,
3388 shape: CursorShape,
3389 block_text: Option<Line>,
3390 ) -> Cursor {
3391 Cursor {
3392 origin,
3393 block_width,
3394 line_height,
3395 color,
3396 shape,
3397 block_text,
3398 }
3399 }
3400
3401 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
3402 Bounds {
3403 origin: self.origin + origin,
3404 size: size(self.block_width, self.line_height),
3405 }
3406 }
3407
3408 pub fn paint(&self, origin: gpui::Point<Pixels>, cx: &mut WindowContext) {
3409 let bounds = match self.shape {
3410 CursorShape::Bar => Bounds {
3411 origin: self.origin + origin,
3412 size: size(px(2.0), self.line_height),
3413 },
3414 CursorShape::Block | CursorShape::Hollow => Bounds {
3415 origin: self.origin + origin,
3416 size: size(self.block_width, self.line_height),
3417 },
3418 CursorShape::Underscore => Bounds {
3419 origin: self.origin
3420 + origin
3421 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
3422 size: size(self.block_width, px(2.0)),
3423 },
3424 };
3425
3426 //Draw background or border quad
3427 if matches!(self.shape, CursorShape::Hollow) {
3428 cx.paint_quad(
3429 bounds,
3430 Corners::default(),
3431 transparent_black(),
3432 Edges::all(px(1.)),
3433 self.color,
3434 );
3435 } else {
3436 cx.paint_quad(
3437 bounds,
3438 Corners::default(),
3439 self.color,
3440 Edges::default(),
3441 transparent_black(),
3442 );
3443 }
3444
3445 if let Some(block_text) = &self.block_text {
3446 block_text.paint(self.origin + origin, self.line_height, cx);
3447 }
3448 }
3449
3450 pub fn shape(&self) -> CursorShape {
3451 self.shape
3452 }
3453}
3454
3455#[derive(Debug)]
3456pub struct HighlightedRange {
3457 pub start_y: Pixels,
3458 pub line_height: Pixels,
3459 pub lines: Vec<HighlightedRangeLine>,
3460 pub color: Hsla,
3461 pub corner_radius: Pixels,
3462}
3463
3464#[derive(Debug)]
3465pub struct HighlightedRangeLine {
3466 pub start_x: Pixels,
3467 pub end_x: Pixels,
3468}
3469
3470impl HighlightedRange {
3471 pub fn paint(&self, bounds: Bounds<Pixels>, cx: &mut WindowContext) {
3472 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
3473 self.paint_lines(self.start_y, &self.lines[0..1], bounds, cx);
3474 self.paint_lines(
3475 self.start_y + self.line_height,
3476 &self.lines[1..],
3477 bounds,
3478 cx,
3479 );
3480 } else {
3481 self.paint_lines(self.start_y, &self.lines, bounds, cx);
3482 }
3483 }
3484
3485 fn paint_lines(
3486 &self,
3487 start_y: Pixels,
3488 lines: &[HighlightedRangeLine],
3489 bounds: Bounds<Pixels>,
3490 cx: &mut WindowContext,
3491 ) {
3492 if lines.is_empty() {
3493 return;
3494 }
3495
3496 let first_line = lines.first().unwrap();
3497 let last_line = lines.last().unwrap();
3498
3499 let first_top_left = point(first_line.start_x, start_y);
3500 let first_top_right = point(first_line.end_x, start_y);
3501
3502 let curve_height = point(Pixels::ZERO, self.corner_radius);
3503 let curve_width = |start_x: Pixels, end_x: Pixels| {
3504 let max = (end_x - start_x) / 2.;
3505 let width = if max < self.corner_radius {
3506 max
3507 } else {
3508 self.corner_radius
3509 };
3510
3511 point(width, Pixels::ZERO)
3512 };
3513
3514 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
3515 let mut path = gpui::Path::new(first_top_right - top_curve_width);
3516 path.curve_to(first_top_right + curve_height, first_top_right);
3517
3518 let mut iter = lines.iter().enumerate().peekable();
3519 while let Some((ix, line)) = iter.next() {
3520 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
3521
3522 if let Some((_, next_line)) = iter.peek() {
3523 let next_top_right = point(next_line.end_x, bottom_right.y);
3524
3525 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
3526 Ordering::Equal => {
3527 path.line_to(bottom_right);
3528 }
3529 Ordering::Less => {
3530 let curve_width = curve_width(next_top_right.x, bottom_right.x);
3531 path.line_to(bottom_right - curve_height);
3532 if self.corner_radius > Pixels::ZERO {
3533 path.curve_to(bottom_right - curve_width, bottom_right);
3534 }
3535 path.line_to(next_top_right + curve_width);
3536 if self.corner_radius > Pixels::ZERO {
3537 path.curve_to(next_top_right + curve_height, next_top_right);
3538 }
3539 }
3540 Ordering::Greater => {
3541 let curve_width = curve_width(bottom_right.x, next_top_right.x);
3542 path.line_to(bottom_right - curve_height);
3543 if self.corner_radius > Pixels::ZERO {
3544 path.curve_to(bottom_right + curve_width, bottom_right);
3545 }
3546 path.line_to(next_top_right - curve_width);
3547 if self.corner_radius > Pixels::ZERO {
3548 path.curve_to(next_top_right + curve_height, next_top_right);
3549 }
3550 }
3551 }
3552 } else {
3553 let curve_width = curve_width(line.start_x, line.end_x);
3554 path.line_to(bottom_right - curve_height);
3555 if self.corner_radius > Pixels::ZERO {
3556 path.curve_to(bottom_right - curve_width, bottom_right);
3557 }
3558
3559 let bottom_left = point(line.start_x, bottom_right.y);
3560 path.line_to(bottom_left + curve_width);
3561 if self.corner_radius > Pixels::ZERO {
3562 path.curve_to(bottom_left - curve_height, bottom_left);
3563 }
3564 }
3565 }
3566
3567 if first_line.start_x > last_line.start_x {
3568 let curve_width = curve_width(last_line.start_x, first_line.start_x);
3569 let second_top_left = point(last_line.start_x, start_y + self.line_height);
3570 path.line_to(second_top_left + curve_height);
3571 if self.corner_radius > Pixels::ZERO {
3572 path.curve_to(second_top_left + curve_width, second_top_left);
3573 }
3574 let first_bottom_left = point(first_line.start_x, second_top_left.y);
3575 path.line_to(first_bottom_left - curve_width);
3576 if self.corner_radius > Pixels::ZERO {
3577 path.curve_to(first_bottom_left - curve_height, first_bottom_left);
3578 }
3579 }
3580
3581 path.line_to(first_top_left + curve_height);
3582 if self.corner_radius > Pixels::ZERO {
3583 path.curve_to(first_top_left + top_curve_width, first_top_left);
3584 }
3585 path.line_to(first_top_right - top_curve_width);
3586
3587 cx.paint_path(path, self.color);
3588 }
3589}
3590
3591// fn range_to_bounds(
3592// range: &Range<DisplayPoint>,
3593// content_origin: gpui::Point<Pixels>,
3594// scroll_left: f32,
3595// scroll_top: f32,
3596// visible_row_range: &Range<u32>,
3597// line_end_overshoot: f32,
3598// position_map: &PositionMap,
3599// ) -> impl Iterator<Item = Bounds<Pixels>> {
3600// let mut bounds: SmallVec<[Bounds<Pixels>; 1]> = SmallVec::new();
3601
3602// if range.start == range.end {
3603// return bounds.into_iter();
3604// }
3605
3606// let start_row = visible_row_range.start;
3607// let end_row = visible_row_range.end;
3608
3609// let row_range = if range.end.column() == 0 {
3610// cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
3611// } else {
3612// cmp::max(range.start.row(), start_row)..cmp::min(range.end.row() + 1, end_row)
3613// };
3614
3615// let first_y =
3616// content_origin.y + row_range.start as f32 * position_map.line_height - scroll_top;
3617
3618// for (idx, row) in row_range.enumerate() {
3619// let line_layout = &position_map.line_layouts[(row - start_row) as usize].line;
3620
3621// let start_x = if row == range.start.row() {
3622// content_origin.x + line_layout.x_for_index(range.start.column() as usize)
3623// - scroll_left
3624// } else {
3625// content_origin.x - scroll_left
3626// };
3627
3628// let end_x = if row == range.end.row() {
3629// content_origin.x + line_layout.x_for_index(range.end.column() as usize) - scroll_left
3630// } else {
3631// content_origin.x + line_layout.width() + line_end_overshoot - scroll_left
3632// };
3633
3634// bounds.push(Bounds::<Pixels>::from_points(
3635// point(start_x, first_y + position_map.line_height * idx as f32),
3636// point(end_x, first_y + position_map.line_height * (idx + 1) as f32),
3637// ))
3638// }
3639
3640// bounds.into_iter()
3641// }
3642
3643pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
3644 (delta.pow(1.5) / 100.0).into()
3645}
3646
3647fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
3648 (delta.pow(1.2) / 300.0).into()
3649}
3650
3651// #[cfg(test)]
3652// mod tests {
3653// use super::*;
3654// use crate::{
3655// display_map::{BlockDisposition, BlockProperties},
3656// editor_tests::{init_test, update_test_language_settings},
3657// Editor, MultiBuffer,
3658// };
3659// use gpui::TestAppContext;
3660// use language::language_settings;
3661// use log::info;
3662// use std::{num::NonZeroU32, sync::Arc};
3663// use util::test::sample_text;
3664
3665// #[gpui::test]
3666// fn test_layout_line_numbers(cx: &mut TestAppContext) {
3667// init_test(cx, |_| {});
3668// let editor = cx
3669// .add_window(|cx| {
3670// let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
3671// Editor::new(EditorMode::Full, buffer, None, None, cx)
3672// })
3673// .root(cx);
3674// let element = EditorElement::new(editor.read_with(cx, |editor, cx| editor.style(cx)));
3675
3676// let layouts = editor.update(cx, |editor, cx| {
3677// let snapshot = editor.snapshot(cx);
3678// element
3679// .layout_line_numbers(
3680// 0..6,
3681// &Default::default(),
3682// DisplayPoint::new(0, 0),
3683// false,
3684// &snapshot,
3685// cx,
3686// )
3687// .0
3688// });
3689// assert_eq!(layouts.len(), 6);
3690
3691// let relative_rows = editor.update(cx, |editor, cx| {
3692// let snapshot = editor.snapshot(cx);
3693// element.calculate_relative_line_numbers(&snapshot, &(0..6), Some(3))
3694// });
3695// assert_eq!(relative_rows[&0], 3);
3696// assert_eq!(relative_rows[&1], 2);
3697// assert_eq!(relative_rows[&2], 1);
3698// // current line has no relative number
3699// assert_eq!(relative_rows[&4], 1);
3700// assert_eq!(relative_rows[&5], 2);
3701
3702// // works if cursor is before screen
3703// let relative_rows = editor.update(cx, |editor, cx| {
3704// let snapshot = editor.snapshot(cx);
3705
3706// element.calculate_relative_line_numbers(&snapshot, &(3..6), Some(1))
3707// });
3708// assert_eq!(relative_rows.len(), 3);
3709// assert_eq!(relative_rows[&3], 2);
3710// assert_eq!(relative_rows[&4], 3);
3711// assert_eq!(relative_rows[&5], 4);
3712
3713// // works if cursor is after screen
3714// let relative_rows = editor.update(cx, |editor, cx| {
3715// let snapshot = editor.snapshot(cx);
3716
3717// element.calculate_relative_line_numbers(&snapshot, &(0..3), Some(6))
3718// });
3719// assert_eq!(relative_rows.len(), 3);
3720// assert_eq!(relative_rows[&0], 5);
3721// assert_eq!(relative_rows[&1], 4);
3722// assert_eq!(relative_rows[&2], 3);
3723// }
3724
3725// #[gpui::test]
3726// async fn test_vim_visual_selections(cx: &mut TestAppContext) {
3727// init_test(cx, |_| {});
3728
3729// let editor = cx
3730// .add_window(|cx| {
3731// let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
3732// Editor::new(EditorMode::Full, buffer, None, None, cx)
3733// })
3734// .root(cx);
3735// let mut element = EditorElement::new(editor.read_with(cx, |editor, cx| editor.style(cx)));
3736// let (_, state) = editor.update(cx, |editor, cx| {
3737// editor.cursor_shape = CursorShape::Block;
3738// editor.change_selections(None, cx, |s| {
3739// s.select_ranges([
3740// Point::new(0, 0)..Point::new(1, 0),
3741// Point::new(3, 2)..Point::new(3, 3),
3742// Point::new(5, 6)..Point::new(6, 0),
3743// ]);
3744// });
3745// element.layout(
3746// SizeConstraint::new(point(500., 500.), point(500., 500.)),
3747// editor,
3748// cx,
3749// )
3750// });
3751// assert_eq!(state.selections.len(), 1);
3752// let local_selections = &state.selections[0].1;
3753// assert_eq!(local_selections.len(), 3);
3754// // moves cursor back one line
3755// assert_eq!(local_selections[0].head, DisplayPoint::new(0, 6));
3756// assert_eq!(
3757// local_selections[0].range,
3758// DisplayPoint::new(0, 0)..DisplayPoint::new(1, 0)
3759// );
3760
3761// // moves cursor back one column
3762// assert_eq!(
3763// local_selections[1].range,
3764// DisplayPoint::new(3, 2)..DisplayPoint::new(3, 3)
3765// );
3766// assert_eq!(local_selections[1].head, DisplayPoint::new(3, 2));
3767
3768// // leaves cursor on the max point
3769// assert_eq!(
3770// local_selections[2].range,
3771// DisplayPoint::new(5, 6)..DisplayPoint::new(6, 0)
3772// );
3773// assert_eq!(local_selections[2].head, DisplayPoint::new(6, 0));
3774
3775// // active lines does not include 1 (even though the range of the selection does)
3776// assert_eq!(
3777// state.active_rows.keys().cloned().collect::<Vec<u32>>(),
3778// vec![0, 3, 5, 6]
3779// );
3780
3781// // multi-buffer support
3782// // in DisplayPoint co-ordinates, this is what we're dealing with:
3783// // 0: [[file
3784// // 1: header]]
3785// // 2: aaaaaa
3786// // 3: bbbbbb
3787// // 4: cccccc
3788// // 5:
3789// // 6: ...
3790// // 7: ffffff
3791// // 8: gggggg
3792// // 9: hhhhhh
3793// // 10:
3794// // 11: [[file
3795// // 12: header]]
3796// // 13: bbbbbb
3797// // 14: cccccc
3798// // 15: dddddd
3799// let editor = cx
3800// .add_window(|cx| {
3801// let buffer = MultiBuffer::build_multi(
3802// [
3803// (
3804// &(sample_text(8, 6, 'a') + "\n"),
3805// vec![
3806// Point::new(0, 0)..Point::new(3, 0),
3807// Point::new(4, 0)..Point::new(7, 0),
3808// ],
3809// ),
3810// (
3811// &(sample_text(8, 6, 'a') + "\n"),
3812// vec![Point::new(1, 0)..Point::new(3, 0)],
3813// ),
3814// ],
3815// cx,
3816// );
3817// Editor::new(EditorMode::Full, buffer, None, None, cx)
3818// })
3819// .root(cx);
3820// let mut element = EditorElement::new(editor.read_with(cx, |editor, cx| editor.style(cx)));
3821// let (_, state) = editor.update(cx, |editor, cx| {
3822// editor.cursor_shape = CursorShape::Block;
3823// editor.change_selections(None, cx, |s| {
3824// s.select_display_ranges([
3825// DisplayPoint::new(4, 0)..DisplayPoint::new(7, 0),
3826// DisplayPoint::new(10, 0)..DisplayPoint::new(13, 0),
3827// ]);
3828// });
3829// element.layout(
3830// SizeConstraint::new(point(500., 500.), point(500., 500.)),
3831// editor,
3832// cx,
3833// )
3834// });
3835
3836// assert_eq!(state.selections.len(), 1);
3837// let local_selections = &state.selections[0].1;
3838// assert_eq!(local_selections.len(), 2);
3839
3840// // moves cursor on excerpt boundary back a line
3841// // and doesn't allow selection to bleed through
3842// assert_eq!(
3843// local_selections[0].range,
3844// DisplayPoint::new(4, 0)..DisplayPoint::new(6, 0)
3845// );
3846// assert_eq!(local_selections[0].head, DisplayPoint::new(5, 0));
3847
3848// // moves cursor on buffer boundary back two lines
3849// // and doesn't allow selection to bleed through
3850// assert_eq!(
3851// local_selections[1].range,
3852// DisplayPoint::new(10, 0)..DisplayPoint::new(11, 0)
3853// );
3854// assert_eq!(local_selections[1].head, DisplayPoint::new(10, 0));
3855// }
3856
3857// #[gpui::test]
3858// fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
3859// init_test(cx, |_| {});
3860
3861// let editor = cx
3862// .add_window(|cx| {
3863// let buffer = MultiBuffer::build_simple("", cx);
3864// Editor::new(EditorMode::Full, buffer, None, None, cx)
3865// })
3866// .root(cx);
3867
3868// editor.update(cx, |editor, cx| {
3869// editor.set_placeholder_text("hello", cx);
3870// editor.insert_blocks(
3871// [BlockProperties {
3872// style: BlockStyle::Fixed,
3873// disposition: BlockDisposition::Above,
3874// height: 3,
3875// position: Anchor::min(),
3876// render: Arc::new(|_| Empty::new().into_any),
3877// }],
3878// None,
3879// cx,
3880// );
3881
3882// // Blur the editor so that it displays placeholder text.
3883// cx.blur();
3884// });
3885
3886// let mut element = EditorElement::new(editor.read_with(cx, |editor, cx| editor.style(cx)));
3887// let (size, mut state) = editor.update(cx, |editor, cx| {
3888// element.layout(
3889// SizeConstraint::new(point(500., 500.), point(500., 500.)),
3890// editor,
3891// cx,
3892// )
3893// });
3894
3895// assert_eq!(state.position_map.line_layouts.len(), 4);
3896// assert_eq!(
3897// state
3898// .line_number_layouts
3899// .iter()
3900// .map(Option::is_some)
3901// .collect::<Vec<_>>(),
3902// &[false, false, false, true]
3903// );
3904
3905// // Don't panic.
3906// let bounds = Bounds::<Pixels>::new(Default::default(), size);
3907// editor.update(cx, |editor, cx| {
3908// element.paint(bounds, bounds, &mut state, editor, cx);
3909// });
3910// }
3911
3912// #[gpui::test]
3913// fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
3914// const TAB_SIZE: u32 = 4;
3915
3916// let input_text = "\t \t|\t| a b";
3917// let expected_invisibles = vec![
3918// Invisible::Tab {
3919// line_start_offset: 0,
3920// },
3921// Invisible::Whitespace {
3922// line_offset: TAB_SIZE as usize,
3923// },
3924// Invisible::Tab {
3925// line_start_offset: TAB_SIZE as usize + 1,
3926// },
3927// Invisible::Tab {
3928// line_start_offset: TAB_SIZE as usize * 2 + 1,
3929// },
3930// Invisible::Whitespace {
3931// line_offset: TAB_SIZE as usize * 3 + 1,
3932// },
3933// Invisible::Whitespace {
3934// line_offset: TAB_SIZE as usize * 3 + 3,
3935// },
3936// ];
3937// assert_eq!(
3938// expected_invisibles.len(),
3939// input_text
3940// .chars()
3941// .filter(|initial_char| initial_char.is_whitespace())
3942// .count(),
3943// "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
3944// );
3945
3946// init_test(cx, |s| {
3947// s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
3948// s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
3949// });
3950
3951// let actual_invisibles =
3952// collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, 500.0);
3953
3954// assert_eq!(expected_invisibles, actual_invisibles);
3955// }
3956
3957// #[gpui::test]
3958// fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
3959// init_test(cx, |s| {
3960// s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
3961// s.defaults.tab_size = NonZeroU32::new(4);
3962// });
3963
3964// for editor_mode_without_invisibles in [
3965// EditorMode::SingleLine,
3966// EditorMode::AutoHeight { max_lines: 100 },
3967// ] {
3968// let invisibles = collect_invisibles_from_new_editor(
3969// cx,
3970// editor_mode_without_invisibles,
3971// "\t\t\t| | a b",
3972// 500.0,
3973// );
3974// assert!(invisibles.is_empty,
3975// "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}");
3976// }
3977// }
3978
3979// #[gpui::test]
3980// fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
3981// let tab_size = 4;
3982// let input_text = "a\tbcd ".repeat(9);
3983// let repeated_invisibles = [
3984// Invisible::Tab {
3985// line_start_offset: 1,
3986// },
3987// Invisible::Whitespace {
3988// line_offset: tab_size as usize + 3,
3989// },
3990// Invisible::Whitespace {
3991// line_offset: tab_size as usize + 4,
3992// },
3993// Invisible::Whitespace {
3994// line_offset: tab_size as usize + 5,
3995// },
3996// ];
3997// let expected_invisibles = std::iter::once(repeated_invisibles)
3998// .cycle()
3999// .take(9)
4000// .flatten()
4001// .collect::<Vec<_>>();
4002// assert_eq!(
4003// expected_invisibles.len(),
4004// input_text
4005// .chars()
4006// .filter(|initial_char| initial_char.is_whitespace())
4007// .count(),
4008// "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
4009// );
4010// info!("Expected invisibles: {expected_invisibles:?}");
4011
4012// init_test(cx, |_| {});
4013
4014// // Put the same string with repeating whitespace pattern into editors of various size,
4015// // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
4016// let resize_step = 10.0;
4017// let mut editor_width = 200.0;
4018// while editor_width <= 1000.0 {
4019// update_test_language_settings(cx, |s| {
4020// s.defaults.tab_size = NonZeroU32::new(tab_size);
4021// s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
4022// s.defaults.preferred_line_length = Some(editor_width as u32);
4023// s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
4024// });
4025
4026// let actual_invisibles =
4027// collect_invisibles_from_new_editor(cx, EditorMode::Full, &input_text, editor_width);
4028
4029// // Whatever the editor size is, ensure it has the same invisible kinds in the same order
4030// // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
4031// let mut i = 0;
4032// for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
4033// i = actual_index;
4034// match expected_invisibles.get(i) {
4035// Some(expected_invisible) => match (expected_invisible, actual_invisible) {
4036// (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
4037// | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
4038// _ => {
4039// panic!("At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}")
4040// }
4041// },
4042// None => panic!("Unexpected extra invisible {actual_invisible:?} at index {i}"),
4043// }
4044// }
4045// let missing_expected_invisibles = &expected_invisibles[i + 1..];
4046// assert!(
4047// missing_expected_invisibles.is_empty,
4048// "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
4049// );
4050
4051// editor_width += resize_step;
4052// }
4053// }
4054
4055// fn collect_invisibles_from_new_editor(
4056// cx: &mut TestAppContext,
4057// editor_mode: EditorMode,
4058// input_text: &str,
4059// editor_width: f32,
4060// ) -> Vec<Invisible> {
4061// info!(
4062// "Creating editor with mode {editor_mode:?}, width {editor_width} and text '{input_text}'"
4063// );
4064// let editor = cx
4065// .add_window(|cx| {
4066// let buffer = MultiBuffer::build_simple(&input_text, cx);
4067// Editor::new(editor_mode, buffer, None, None, cx)
4068// })
4069// .root(cx);
4070
4071// let mut element = EditorElement::new(editor.read_with(cx, |editor, cx| editor.style(cx)));
4072// let (_, layout_state) = editor.update(cx, |editor, cx| {
4073// editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
4074// editor.set_wrap_width(Some(editor_width), cx);
4075
4076// element.layout(
4077// SizeConstraint::new(point(editor_width, 500.), point(editor_width, 500.)),
4078// editor,
4079// cx,
4080// )
4081// });
4082
4083// layout_state
4084// .position_map
4085// .line_layouts
4086// .iter()
4087// .map(|line_with_invisibles| &line_with_invisibles.invisibles)
4088// .flatten()
4089// .cloned()
4090// .collect()
4091// }
4092// }
4093
4094fn build_key_listeners(
4095 global_element_id: GlobalElementId,
4096) -> impl IntoIterator<Item = (TypeId, KeyListener<Editor>)> {
4097 [
4098 build_action_listener(Editor::move_left),
4099 build_action_listener(Editor::move_right),
4100 build_action_listener(Editor::move_down),
4101 build_action_listener(Editor::move_up),
4102 // build_action_listener(Editor::new_file), todo!()
4103 // build_action_listener(Editor::new_file_in_direction), todo!()
4104 build_action_listener(Editor::cancel),
4105 build_action_listener(Editor::newline),
4106 build_action_listener(Editor::newline_above),
4107 build_action_listener(Editor::newline_below),
4108 build_action_listener(Editor::backspace),
4109 build_action_listener(Editor::delete),
4110 build_action_listener(Editor::tab),
4111 build_action_listener(Editor::tab_prev),
4112 build_action_listener(Editor::indent),
4113 build_action_listener(Editor::outdent),
4114 build_action_listener(Editor::delete_line),
4115 build_action_listener(Editor::join_lines),
4116 build_action_listener(Editor::sort_lines_case_sensitive),
4117 build_action_listener(Editor::sort_lines_case_insensitive),
4118 build_action_listener(Editor::reverse_lines),
4119 build_action_listener(Editor::shuffle_lines),
4120 build_action_listener(Editor::convert_to_upper_case),
4121 build_action_listener(Editor::convert_to_lower_case),
4122 build_action_listener(Editor::convert_to_title_case),
4123 build_action_listener(Editor::convert_to_snake_case),
4124 build_action_listener(Editor::convert_to_kebab_case),
4125 build_action_listener(Editor::convert_to_upper_camel_case),
4126 build_action_listener(Editor::convert_to_lower_camel_case),
4127 build_action_listener(Editor::delete_to_previous_word_start),
4128 build_action_listener(Editor::delete_to_previous_subword_start),
4129 build_action_listener(Editor::delete_to_next_word_end),
4130 build_action_listener(Editor::delete_to_next_subword_end),
4131 build_action_listener(Editor::delete_to_beginning_of_line),
4132 build_action_listener(Editor::delete_to_end_of_line),
4133 build_action_listener(Editor::cut_to_end_of_line),
4134 build_action_listener(Editor::duplicate_line),
4135 build_action_listener(Editor::move_line_up),
4136 build_action_listener(Editor::move_line_down),
4137 build_action_listener(Editor::transpose),
4138 build_action_listener(Editor::cut),
4139 build_action_listener(Editor::copy),
4140 build_action_listener(Editor::paste),
4141 build_action_listener(Editor::undo),
4142 build_action_listener(Editor::redo),
4143 build_action_listener(Editor::move_page_up),
4144 build_action_listener(Editor::move_page_down),
4145 build_action_listener(Editor::next_screen),
4146 build_action_listener(Editor::scroll_cursor_top),
4147 build_action_listener(Editor::scroll_cursor_center),
4148 build_action_listener(Editor::scroll_cursor_bottom),
4149 build_action_listener(|editor, _: &LineDown, cx| {
4150 editor.scroll_screen(&ScrollAmount::Line(1.), cx)
4151 }),
4152 build_action_listener(|editor, _: &LineUp, cx| {
4153 editor.scroll_screen(&ScrollAmount::Line(-1.), cx)
4154 }),
4155 build_action_listener(|editor, _: &HalfPageDown, cx| {
4156 editor.scroll_screen(&ScrollAmount::Page(0.5), cx)
4157 }),
4158 build_action_listener(|editor, _: &HalfPageUp, cx| {
4159 editor.scroll_screen(&ScrollAmount::Page(-0.5), cx)
4160 }),
4161 build_action_listener(|editor, _: &PageDown, cx| {
4162 editor.scroll_screen(&ScrollAmount::Page(1.), cx)
4163 }),
4164 build_action_listener(|editor, _: &PageUp, cx| {
4165 editor.scroll_screen(&ScrollAmount::Page(-1.), cx)
4166 }),
4167 build_action_listener(Editor::move_to_previous_word_start),
4168 build_action_listener(Editor::move_to_previous_subword_start),
4169 build_action_listener(Editor::move_to_next_word_end),
4170 build_action_listener(Editor::move_to_next_subword_end),
4171 build_action_listener(Editor::move_to_beginning_of_line),
4172 build_action_listener(Editor::move_to_end_of_line),
4173 build_action_listener(Editor::move_to_start_of_paragraph),
4174 build_action_listener(Editor::move_to_end_of_paragraph),
4175 build_action_listener(Editor::move_to_beginning),
4176 build_action_listener(Editor::move_to_end),
4177 build_action_listener(Editor::select_up),
4178 build_action_listener(Editor::select_down),
4179 build_action_listener(Editor::select_left),
4180 build_action_listener(Editor::select_right),
4181 build_action_listener(Editor::select_to_previous_word_start),
4182 build_action_listener(Editor::select_to_previous_subword_start),
4183 build_action_listener(Editor::select_to_next_word_end),
4184 build_action_listener(Editor::select_to_next_subword_end),
4185 build_action_listener(Editor::select_to_beginning_of_line),
4186 build_action_listener(Editor::select_to_end_of_line),
4187 build_action_listener(Editor::select_to_start_of_paragraph),
4188 build_action_listener(Editor::select_to_end_of_paragraph),
4189 build_action_listener(Editor::select_to_beginning),
4190 build_action_listener(Editor::select_to_end),
4191 build_action_listener(Editor::select_all),
4192 build_action_listener(|editor, action, cx| {
4193 editor.select_all_matches(action, cx).log_err();
4194 }),
4195 build_action_listener(Editor::select_line),
4196 build_action_listener(Editor::split_selection_into_lines),
4197 build_action_listener(Editor::add_selection_above),
4198 build_action_listener(Editor::add_selection_below),
4199 build_action_listener(|editor, action, cx| {
4200 editor.select_next(action, cx).log_err();
4201 }),
4202 build_action_listener(|editor, action, cx| {
4203 editor.select_previous(action, cx).log_err();
4204 }),
4205 build_action_listener(Editor::toggle_comments),
4206 build_action_listener(Editor::select_larger_syntax_node),
4207 build_action_listener(Editor::select_smaller_syntax_node),
4208 build_action_listener(Editor::move_to_enclosing_bracket),
4209 build_action_listener(Editor::undo_selection),
4210 build_action_listener(Editor::redo_selection),
4211 build_action_listener(Editor::go_to_diagnostic),
4212 build_action_listener(Editor::go_to_prev_diagnostic),
4213 build_action_listener(Editor::go_to_hunk),
4214 build_action_listener(Editor::go_to_prev_hunk),
4215 build_action_listener(Editor::go_to_definition),
4216 build_action_listener(Editor::go_to_definition_split),
4217 build_action_listener(Editor::go_to_type_definition),
4218 build_action_listener(Editor::go_to_type_definition_split),
4219 build_action_listener(Editor::fold),
4220 build_action_listener(Editor::fold_at),
4221 build_action_listener(Editor::unfold_lines),
4222 build_action_listener(Editor::unfold_at),
4223 // build_action_listener(Editor::gutter_hover), todo!()
4224 build_action_listener(Editor::fold_selected_ranges),
4225 build_action_listener(Editor::show_completions),
4226 // build_action_listener(Editor::toggle_code_actions), todo!()
4227 // build_action_listener(Editor::open_excerpts), todo!()
4228 build_action_listener(Editor::toggle_soft_wrap),
4229 build_action_listener(Editor::toggle_inlay_hints),
4230 build_action_listener(Editor::reveal_in_finder),
4231 build_action_listener(Editor::copy_path),
4232 build_action_listener(Editor::copy_relative_path),
4233 build_action_listener(Editor::copy_highlight_json),
4234 build_action_listener(|editor, action, cx| {
4235 editor
4236 .format(action, cx)
4237 .map(|task| task.detach_and_log_err(cx));
4238 }),
4239 build_action_listener(Editor::restart_language_server),
4240 build_action_listener(Editor::show_character_palette),
4241 // build_action_listener(Editor::confirm_completion), todo!()
4242 // build_action_listener(Editor::confirm_code_action), todo!()
4243 // build_action_listener(Editor::rename), todo!()
4244 // build_action_listener(Editor::confirm_rename), todo!()
4245 // build_action_listener(Editor::find_all_references), todo!()
4246 build_action_listener(Editor::next_copilot_suggestion),
4247 build_action_listener(Editor::previous_copilot_suggestion),
4248 build_action_listener(Editor::copilot_suggest),
4249 build_key_listener(
4250 move |editor, key_down: &KeyDownEvent, dispatch_context, phase, cx| {
4251 if phase == DispatchPhase::Bubble {
4252 if let KeyMatch::Some(action) = cx.match_keystroke(
4253 &global_element_id,
4254 &key_down.keystroke,
4255 dispatch_context,
4256 ) {
4257 return Some(action);
4258 }
4259 }
4260
4261 None
4262 },
4263 ),
4264 ]
4265}
4266
4267fn build_key_listener<T: 'static>(
4268 listener: impl Fn(
4269 &mut Editor,
4270 &T,
4271 &[&DispatchContext],
4272 DispatchPhase,
4273 &mut ViewContext<Editor>,
4274 ) -> Option<Box<dyn Action>>
4275 + 'static,
4276) -> (TypeId, KeyListener<Editor>) {
4277 (
4278 TypeId::of::<T>(),
4279 Box::new(move |editor, event, dispatch_context, phase, cx| {
4280 let key_event = event.downcast_ref::<T>()?;
4281 listener(editor, key_event, dispatch_context, phase, cx)
4282 }),
4283 )
4284}
4285
4286fn build_action_listener<T: Action>(
4287 listener: impl Fn(&mut Editor, &T, &mut ViewContext<Editor>) + 'static,
4288) -> (TypeId, KeyListener<Editor>) {
4289 build_key_listener(move |editor, action: &T, dispatch_context, phase, cx| {
4290 if phase == DispatchPhase::Bubble {
4291 listener(editor, action, cx);
4292 }
4293 None
4294 })
4295}