1use editor::{Cursor, HighlightedRange, HighlightedRangeLine};
2use gpui::{
3 div, fill, point, px, relative, AnyElement, AvailableSpace, Bounds, DispatchPhase, Element,
4 ElementContext, ElementId, FocusHandle, Font, FontStyle, FontWeight, HighlightStyle, Hsla,
5 InputHandler, InteractiveBounds, InteractiveElement, InteractiveElementState, Interactivity,
6 IntoElement, LayoutId, Model, ModelContext, ModifiersChangedEvent, MouseButton, MouseMoveEvent,
7 Pixels, Point, ShapedLine, StatefulInteractiveElement, StrikethroughStyle, Styled, TextRun,
8 TextStyle, UnderlineStyle, WeakView, WhiteSpace, WindowContext, WindowTextSystem,
9};
10use itertools::Itertools;
11use language::CursorShape;
12use settings::Settings;
13use terminal::{
14 alacritty_terminal::{
15 grid::Dimensions,
16 index::Point as AlacPoint,
17 term::{cell::Flags, TermMode},
18 vte::ansi::{Color as AnsiColor, Color::Named, CursorShape as AlacCursorShape, NamedColor},
19 },
20 terminal_settings::TerminalSettings,
21 IndexedCell, Terminal, TerminalContent, TerminalSize,
22};
23use theme::{ActiveTheme, Theme, ThemeSettings};
24use ui::Tooltip;
25use workspace::Workspace;
26
27use std::mem;
28use std::{fmt::Debug, ops::RangeInclusive};
29
30/// The information generated during layout that is necessary for painting.
31pub struct LayoutState {
32 cells: Vec<LayoutCell>,
33 rects: Vec<LayoutRect>,
34 relative_highlighted_ranges: Vec<(RangeInclusive<AlacPoint>, Hsla)>,
35 cursor: Option<Cursor>,
36 background_color: Hsla,
37 dimensions: TerminalSize,
38 mode: TermMode,
39 display_offset: usize,
40 hyperlink_tooltip: Option<AnyElement>,
41 gutter: Pixels,
42}
43
44/// Helper struct for converting data between Alacritty's cursor points, and displayed cursor points.
45struct DisplayCursor {
46 line: i32,
47 col: usize,
48}
49
50impl DisplayCursor {
51 fn from(cursor_point: AlacPoint, display_offset: usize) -> Self {
52 Self {
53 line: cursor_point.line.0 + display_offset as i32,
54 col: cursor_point.column.0,
55 }
56 }
57
58 pub fn line(&self) -> i32 {
59 self.line
60 }
61
62 pub fn col(&self) -> usize {
63 self.col
64 }
65}
66
67#[derive(Debug, Default)]
68struct LayoutCell {
69 point: AlacPoint<i32, i32>,
70 text: gpui::ShapedLine,
71}
72
73impl LayoutCell {
74 fn new(point: AlacPoint<i32, i32>, text: gpui::ShapedLine) -> LayoutCell {
75 LayoutCell { point, text }
76 }
77
78 fn paint(
79 &self,
80 origin: Point<Pixels>,
81 layout: &LayoutState,
82 _visible_bounds: Bounds<Pixels>,
83 cx: &mut ElementContext,
84 ) {
85 let pos = {
86 let point = self.point;
87
88 Point::new(
89 (origin.x + point.column as f32 * layout.dimensions.cell_width).floor(),
90 origin.y + point.line as f32 * layout.dimensions.line_height,
91 )
92 };
93
94 self.text.paint(pos, layout.dimensions.line_height, cx).ok();
95 }
96}
97
98#[derive(Clone, Debug, Default)]
99struct LayoutRect {
100 point: AlacPoint<i32, i32>,
101 num_of_cells: usize,
102 color: Hsla,
103}
104
105impl LayoutRect {
106 fn new(point: AlacPoint<i32, i32>, num_of_cells: usize, color: Hsla) -> LayoutRect {
107 LayoutRect {
108 point,
109 num_of_cells,
110 color,
111 }
112 }
113
114 fn extend(&self) -> Self {
115 LayoutRect {
116 point: self.point,
117 num_of_cells: self.num_of_cells + 1,
118 color: self.color,
119 }
120 }
121
122 fn paint(&self, origin: Point<Pixels>, layout: &LayoutState, cx: &mut ElementContext) {
123 let position = {
124 let alac_point = self.point;
125 point(
126 (origin.x + alac_point.column as f32 * layout.dimensions.cell_width).floor(),
127 origin.y + alac_point.line as f32 * layout.dimensions.line_height,
128 )
129 };
130 let size = point(
131 (layout.dimensions.cell_width * self.num_of_cells as f32).ceil(),
132 layout.dimensions.line_height,
133 )
134 .into();
135
136 cx.paint_quad(fill(Bounds::new(position, size), self.color));
137 }
138}
139
140/// The GPUI element that paints the terminal.
141/// We need to keep a reference to the view for mouse events, do we need it for any other terminal stuff, or can we move that to connection?
142pub struct TerminalElement {
143 terminal: Model<Terminal>,
144 workspace: WeakView<Workspace>,
145 focus: FocusHandle,
146 focused: bool,
147 cursor_visible: bool,
148 can_navigate_to_selected_word: bool,
149 interactivity: Interactivity,
150}
151
152impl InteractiveElement for TerminalElement {
153 fn interactivity(&mut self) -> &mut Interactivity {
154 &mut self.interactivity
155 }
156}
157
158impl StatefulInteractiveElement for TerminalElement {}
159
160impl TerminalElement {
161 pub fn new(
162 terminal: Model<Terminal>,
163 workspace: WeakView<Workspace>,
164 focus: FocusHandle,
165 focused: bool,
166 cursor_visible: bool,
167 can_navigate_to_selected_word: bool,
168 ) -> TerminalElement {
169 TerminalElement {
170 terminal,
171 workspace,
172 focused,
173 focus: focus.clone(),
174 cursor_visible,
175 can_navigate_to_selected_word,
176 interactivity: Default::default(),
177 }
178 .track_focus(&focus)
179 .element
180 }
181
182 //Vec<Range<AlacPoint>> -> Clip out the parts of the ranges
183
184 fn layout_grid(
185 grid: &Vec<IndexedCell>,
186 text_style: &TextStyle,
187 // terminal_theme: &TerminalStyle,
188 text_system: &WindowTextSystem,
189 hyperlink: Option<(HighlightStyle, &RangeInclusive<AlacPoint>)>,
190 cx: &WindowContext<'_>,
191 ) -> (Vec<LayoutCell>, Vec<LayoutRect>) {
192 let theme = cx.theme();
193 let mut cells = vec![];
194 let mut rects = vec![];
195
196 let mut cur_rect: Option<LayoutRect> = None;
197 let mut cur_alac_color = None;
198
199 let linegroups = grid.into_iter().group_by(|i| i.point.line);
200 for (line_index, (_, line)) in linegroups.into_iter().enumerate() {
201 for cell in line {
202 let mut fg = cell.fg;
203 let mut bg = cell.bg;
204 if cell.flags.contains(Flags::INVERSE) {
205 mem::swap(&mut fg, &mut bg);
206 }
207
208 //Expand background rect range
209 {
210 if matches!(bg, Named(NamedColor::Background)) {
211 //Continue to next cell, resetting variables if necessary
212 cur_alac_color = None;
213 if let Some(rect) = cur_rect {
214 rects.push(rect);
215 cur_rect = None
216 }
217 } else {
218 match cur_alac_color {
219 Some(cur_color) => {
220 if bg == cur_color {
221 // `cur_rect` can be None if it was moved to the `rects` vec after wrapping around
222 // from one line to the next. The variables are all set correctly but there is no current
223 // rect, so we create one if necessary.
224 cur_rect = cur_rect.map_or_else(
225 || {
226 Some(LayoutRect::new(
227 AlacPoint::new(
228 line_index as i32,
229 cell.point.column.0 as i32,
230 ),
231 1,
232 convert_color(&bg, theme),
233 ))
234 },
235 |rect| Some(rect.extend()),
236 );
237 } else {
238 cur_alac_color = Some(bg);
239 if cur_rect.is_some() {
240 rects.push(cur_rect.take().unwrap());
241 }
242 cur_rect = Some(LayoutRect::new(
243 AlacPoint::new(
244 line_index as i32,
245 cell.point.column.0 as i32,
246 ),
247 1,
248 convert_color(&bg, theme),
249 ));
250 }
251 }
252 None => {
253 cur_alac_color = Some(bg);
254 cur_rect = Some(LayoutRect::new(
255 AlacPoint::new(line_index as i32, cell.point.column.0 as i32),
256 1,
257 convert_color(&bg, &theme),
258 ));
259 }
260 }
261 }
262 }
263
264 //Layout current cell text
265 {
266 if !is_blank(&cell) {
267 let cell_text = cell.c.to_string();
268 let cell_style =
269 TerminalElement::cell_style(&cell, fg, theme, text_style, hyperlink);
270
271 let layout_cell = text_system
272 .shape_line(
273 cell_text.into(),
274 text_style.font_size.to_pixels(cx.rem_size()),
275 &[cell_style],
276 )
277 .unwrap();
278
279 cells.push(LayoutCell::new(
280 AlacPoint::new(line_index as i32, cell.point.column.0 as i32),
281 layout_cell,
282 ))
283 };
284 }
285 }
286
287 if cur_rect.is_some() {
288 rects.push(cur_rect.take().unwrap());
289 }
290 }
291 (cells, rects)
292 }
293
294 /// Computes the cursor position and expected block width, may return a zero width if x_for_index returns
295 /// the same position for sequential indexes. Use em_width instead
296 fn shape_cursor(
297 cursor_point: DisplayCursor,
298 size: TerminalSize,
299 text_fragment: &ShapedLine,
300 ) -> Option<(Point<Pixels>, Pixels)> {
301 if cursor_point.line() < size.total_lines() as i32 {
302 let cursor_width = if text_fragment.width == Pixels::ZERO {
303 size.cell_width()
304 } else {
305 text_fragment.width
306 };
307
308 // Cursor should always surround as much of the text as possible,
309 // hence when on pixel boundaries round the origin down and the width up
310 Some((
311 point(
312 (cursor_point.col() as f32 * size.cell_width()).floor(),
313 (cursor_point.line() as f32 * size.line_height()).floor(),
314 ),
315 cursor_width.ceil(),
316 ))
317 } else {
318 None
319 }
320 }
321
322 /// Converts the Alacritty cell styles to GPUI text styles and background color.
323 fn cell_style(
324 indexed: &IndexedCell,
325 fg: terminal::alacritty_terminal::vte::ansi::Color,
326 // bg: terminal::alacritty_terminal::ansi::Color,
327 colors: &Theme,
328 text_style: &TextStyle,
329 hyperlink: Option<(HighlightStyle, &RangeInclusive<AlacPoint>)>,
330 ) -> TextRun {
331 let flags = indexed.cell.flags;
332 let mut fg = convert_color(&fg, &colors);
333
334 // Ghostty uses (175/255) as the multiplier (~0.69), Alacritty uses 0.66, Kitty
335 // uses 0.75. We're using 0.7 because it's pretty well in the middle of that.
336 if flags.intersects(Flags::DIM) {
337 fg.a *= 0.7;
338 }
339
340 let underline = (flags.intersects(Flags::ALL_UNDERLINES)
341 || indexed.cell.hyperlink().is_some())
342 .then(|| UnderlineStyle {
343 color: Some(fg),
344 thickness: Pixels::from(1.0),
345 wavy: flags.contains(Flags::UNDERCURL),
346 });
347
348 let strikethrough = flags
349 .intersects(Flags::STRIKEOUT)
350 .then(|| StrikethroughStyle {
351 color: Some(fg),
352 thickness: Pixels::from(1.0),
353 });
354
355 let weight = if flags.intersects(Flags::BOLD) {
356 FontWeight::BOLD
357 } else {
358 FontWeight::NORMAL
359 };
360
361 let style = if flags.intersects(Flags::ITALIC) {
362 FontStyle::Italic
363 } else {
364 FontStyle::Normal
365 };
366
367 let mut result = TextRun {
368 len: indexed.c.len_utf8(),
369 color: fg,
370 background_color: None,
371 font: Font {
372 weight,
373 style,
374 ..text_style.font()
375 },
376 underline,
377 strikethrough,
378 };
379
380 if let Some((style, range)) = hyperlink {
381 if range.contains(&indexed.point) {
382 if let Some(underline) = style.underline {
383 result.underline = Some(underline);
384 }
385
386 if let Some(color) = style.color {
387 result.color = color;
388 }
389 }
390 }
391
392 result
393 }
394
395 fn compute_layout(&self, bounds: Bounds<gpui::Pixels>, cx: &mut ElementContext) -> LayoutState {
396 let settings = ThemeSettings::get_global(cx).clone();
397
398 let buffer_font_size = settings.buffer_font_size(cx);
399
400 let terminal_settings = TerminalSettings::get_global(cx);
401 let font_family = terminal_settings
402 .font_family
403 .as_ref()
404 .map(|string| string.clone().into())
405 .unwrap_or(settings.buffer_font.family);
406
407 let font_features = terminal_settings
408 .font_features
409 .unwrap_or(settings.buffer_font.features);
410
411 let line_height = terminal_settings.line_height.value();
412 let font_size = terminal_settings.font_size;
413
414 let font_size =
415 font_size.map_or(buffer_font_size, |size| theme::adjusted_font_size(size, cx));
416
417 let theme = cx.theme().clone();
418
419 let link_style = HighlightStyle {
420 color: Some(theme.colors().link_text_hover),
421 font_weight: None,
422 font_style: None,
423 background_color: None,
424 underline: Some(UnderlineStyle {
425 thickness: px(1.0),
426 color: Some(theme.colors().link_text_hover),
427 wavy: false,
428 }),
429 strikethrough: None,
430 fade_out: None,
431 };
432
433 let text_style = TextStyle {
434 font_family,
435 font_features,
436 font_size: font_size.into(),
437 font_style: FontStyle::Normal,
438 line_height: line_height.into(),
439 background_color: None,
440 white_space: WhiteSpace::Normal,
441 // These are going to be overridden per-cell
442 underline: None,
443 strikethrough: None,
444 color: theme.colors().text,
445 font_weight: FontWeight::NORMAL,
446 };
447
448 let text_system = cx.text_system();
449 let player_color = theme.players().local();
450 let match_color = theme.colors().search_match_background;
451 let gutter;
452 let dimensions = {
453 let rem_size = cx.rem_size();
454 let font_pixels = text_style.font_size.to_pixels(rem_size);
455 let line_height = font_pixels * line_height.to_pixels(rem_size);
456 let font_id = cx.text_system().resolve_font(&text_style.font());
457
458 let cell_width = text_system
459 .advance(font_id, font_pixels, 'm')
460 .unwrap()
461 .width;
462 gutter = cell_width;
463
464 let mut size = bounds.size;
465 size.width -= gutter;
466
467 // https://github.com/zed-industries/zed/issues/2750
468 // if the terminal is one column wide, rendering 🦀
469 // causes alacritty to misbehave.
470 if size.width < cell_width * 2.0 {
471 size.width = cell_width * 2.0;
472 }
473
474 TerminalSize::new(line_height, cell_width, size)
475 };
476
477 let search_matches = self.terminal.read(cx).matches.clone();
478
479 let background_color = theme.colors().terminal_background;
480
481 let last_hovered_word = self.terminal.update(cx, |terminal, cx| {
482 terminal.set_size(dimensions);
483 terminal.sync(cx);
484 if self.can_navigate_to_selected_word && terminal.can_navigate_to_selected_word() {
485 terminal.last_content.last_hovered_word.clone()
486 } else {
487 None
488 }
489 });
490
491 if bounds.contains(&cx.mouse_position()) {
492 let stacking_order = cx.stacking_order().clone();
493 if self.can_navigate_to_selected_word && last_hovered_word.is_some() {
494 cx.set_cursor_style(gpui::CursorStyle::PointingHand, stacking_order);
495 } else {
496 cx.set_cursor_style(gpui::CursorStyle::IBeam, stacking_order);
497 }
498 }
499
500 let hyperlink_tooltip = last_hovered_word.clone().map(|hovered_word| {
501 div()
502 .size_full()
503 .id("terminal-element")
504 .tooltip(move |cx| Tooltip::text(hovered_word.word.clone(), cx))
505 .into_any_element()
506 });
507
508 let TerminalContent {
509 cells,
510 mode,
511 display_offset,
512 cursor_char,
513 selection,
514 cursor,
515 ..
516 } = &self.terminal.read(cx).last_content;
517
518 // searches, highlights to a single range representations
519 let mut relative_highlighted_ranges = Vec::new();
520 for search_match in search_matches {
521 relative_highlighted_ranges.push((search_match, match_color))
522 }
523 if let Some(selection) = selection {
524 relative_highlighted_ranges
525 .push((selection.start..=selection.end, player_color.selection));
526 }
527
528 // then have that representation be converted to the appropriate highlight data structure
529
530 let (cells, rects) = TerminalElement::layout_grid(
531 cells,
532 &text_style,
533 &cx.text_system(),
534 last_hovered_word
535 .as_ref()
536 .map(|last_hovered_word| (link_style, &last_hovered_word.word_match)),
537 cx,
538 );
539
540 // Layout cursor. Rectangle is used for IME, so we should lay it out even
541 // if we don't end up showing it.
542 let cursor = if let AlacCursorShape::Hidden = cursor.shape {
543 None
544 } else {
545 let cursor_point = DisplayCursor::from(cursor.point, *display_offset);
546 let cursor_text = {
547 let str_trxt = cursor_char.to_string();
548 let len = str_trxt.len();
549 cx.text_system()
550 .shape_line(
551 str_trxt.into(),
552 text_style.font_size.to_pixels(cx.rem_size()),
553 &[TextRun {
554 len,
555 font: text_style.font(),
556 color: theme.colors().terminal_background,
557 background_color: None,
558 underline: Default::default(),
559 strikethrough: None,
560 }],
561 )
562 .unwrap()
563 };
564
565 let focused = self.focused;
566 TerminalElement::shape_cursor(cursor_point, dimensions, &cursor_text).map(
567 move |(cursor_position, block_width)| {
568 let (shape, text) = match cursor.shape {
569 AlacCursorShape::Block if !focused => (CursorShape::Hollow, None),
570 AlacCursorShape::Block => (CursorShape::Block, Some(cursor_text)),
571 AlacCursorShape::Underline => (CursorShape::Underscore, None),
572 AlacCursorShape::Beam => (CursorShape::Bar, None),
573 AlacCursorShape::HollowBlock => (CursorShape::Hollow, None),
574 //This case is handled in the if wrapping the whole cursor layout
575 AlacCursorShape::Hidden => unreachable!(),
576 };
577
578 Cursor::new(
579 cursor_position,
580 block_width,
581 dimensions.line_height,
582 theme.players().local().cursor,
583 shape,
584 text,
585 None,
586 )
587 },
588 )
589 };
590
591 LayoutState {
592 cells,
593 cursor,
594 background_color,
595 dimensions,
596 rects,
597 relative_highlighted_ranges,
598 mode: *mode,
599 display_offset: *display_offset,
600 hyperlink_tooltip,
601 gutter,
602 }
603 }
604
605 fn generic_button_handler<E>(
606 connection: Model<Terminal>,
607 origin: Point<Pixels>,
608 focus_handle: FocusHandle,
609 f: impl Fn(&mut Terminal, Point<Pixels>, &E, &mut ModelContext<Terminal>),
610 ) -> impl Fn(&E, &mut WindowContext) {
611 move |event, cx| {
612 cx.focus(&focus_handle);
613 connection.update(cx, |terminal, cx| {
614 f(terminal, origin, event, cx);
615
616 cx.notify();
617 })
618 }
619 }
620
621 fn register_mouse_listeners(
622 &mut self,
623 origin: Point<Pixels>,
624 mode: TermMode,
625 bounds: Bounds<Pixels>,
626 cx: &mut ElementContext,
627 ) {
628 let focus = self.focus.clone();
629 let terminal = self.terminal.clone();
630 let interactive_bounds = InteractiveBounds {
631 bounds: bounds.intersect(&cx.content_mask().bounds),
632 stacking_order: cx.stacking_order().clone(),
633 };
634
635 self.interactivity.on_mouse_down(MouseButton::Left, {
636 let terminal = terminal.clone();
637 let focus = focus.clone();
638 move |e, cx| {
639 cx.focus(&focus);
640 terminal.update(cx, |terminal, cx| {
641 terminal.mouse_down(&e, origin);
642 cx.notify();
643 })
644 }
645 });
646
647 cx.on_mouse_event({
648 let focus = self.focus.clone();
649 let terminal = self.terminal.clone();
650 move |e: &MouseMoveEvent, phase, cx| {
651 if phase != DispatchPhase::Bubble || !focus.is_focused(cx) {
652 return;
653 }
654
655 if e.pressed_button.is_some() && !cx.has_active_drag() {
656 let visibly_contains = interactive_bounds.visibly_contains(&e.position, cx);
657 terminal.update(cx, |terminal, cx| {
658 if !terminal.selection_started() {
659 if visibly_contains {
660 terminal.mouse_drag(e, origin, bounds);
661 cx.notify();
662 }
663 } else {
664 terminal.mouse_drag(e, origin, bounds);
665 cx.notify();
666 }
667 })
668 }
669
670 if interactive_bounds.visibly_contains(&e.position, cx) {
671 terminal.update(cx, |terminal, cx| {
672 terminal.mouse_move(&e, origin);
673 cx.notify();
674 })
675 }
676 }
677 });
678
679 self.interactivity.on_mouse_up(
680 MouseButton::Left,
681 TerminalElement::generic_button_handler(
682 terminal.clone(),
683 origin,
684 focus.clone(),
685 move |terminal, origin, e, cx| {
686 terminal.mouse_up(&e, origin, cx);
687 },
688 ),
689 );
690 self.interactivity.on_scroll_wheel({
691 let terminal = terminal.clone();
692 move |e, cx| {
693 terminal.update(cx, |terminal, cx| {
694 terminal.scroll_wheel(e, origin);
695 cx.notify();
696 })
697 }
698 });
699
700 // Mouse mode handlers:
701 // All mouse modes need the extra click handlers
702 if mode.intersects(TermMode::MOUSE_MODE) {
703 self.interactivity.on_mouse_down(
704 MouseButton::Right,
705 TerminalElement::generic_button_handler(
706 terminal.clone(),
707 origin,
708 focus.clone(),
709 move |terminal, origin, e, _cx| {
710 terminal.mouse_down(&e, origin);
711 },
712 ),
713 );
714 self.interactivity.on_mouse_down(
715 MouseButton::Middle,
716 TerminalElement::generic_button_handler(
717 terminal.clone(),
718 origin,
719 focus.clone(),
720 move |terminal, origin, e, _cx| {
721 terminal.mouse_down(&e, origin);
722 },
723 ),
724 );
725 self.interactivity.on_mouse_up(
726 MouseButton::Right,
727 TerminalElement::generic_button_handler(
728 terminal.clone(),
729 origin,
730 focus.clone(),
731 move |terminal, origin, e, cx| {
732 terminal.mouse_up(&e, origin, cx);
733 },
734 ),
735 );
736 self.interactivity.on_mouse_up(
737 MouseButton::Middle,
738 TerminalElement::generic_button_handler(
739 terminal,
740 origin,
741 focus,
742 move |terminal, origin, e, cx| {
743 terminal.mouse_up(&e, origin, cx);
744 },
745 ),
746 );
747 }
748 }
749}
750
751impl Element for TerminalElement {
752 type State = InteractiveElementState;
753
754 fn request_layout(
755 &mut self,
756 element_state: Option<Self::State>,
757 cx: &mut ElementContext<'_>,
758 ) -> (LayoutId, Self::State) {
759 let (layout_id, interactive_state) =
760 self.interactivity
761 .layout(element_state, cx, |mut style, cx| {
762 style.size.width = relative(1.).into();
763 style.size.height = relative(1.).into();
764 let layout_id = cx.request_layout(&style, None);
765
766 layout_id
767 });
768
769 (layout_id, interactive_state)
770 }
771
772 fn paint(
773 &mut self,
774 bounds: Bounds<Pixels>,
775 state: &mut Self::State,
776 cx: &mut ElementContext<'_>,
777 ) {
778 let mut layout = self.compute_layout(bounds, cx);
779
780 cx.paint_quad(fill(bounds, layout.background_color));
781 let origin = bounds.origin + Point::new(layout.gutter, px(0.));
782
783 let terminal_input_handler = TerminalInputHandler {
784 terminal: self.terminal.clone(),
785 cursor_bounds: layout
786 .cursor
787 .as_ref()
788 .map(|cursor| cursor.bounding_rect(origin)),
789 workspace: self.workspace.clone(),
790 };
791
792 self.register_mouse_listeners(origin, layout.mode, bounds, cx);
793
794 self.interactivity
795 .paint(bounds, bounds.size, state, cx, |_, _, cx| {
796 cx.handle_input(&self.focus, terminal_input_handler);
797
798 cx.on_key_event({
799 let this = self.terminal.clone();
800 move |event: &ModifiersChangedEvent, phase, cx| {
801 if phase != DispatchPhase::Bubble {
802 return;
803 }
804
805 let handled =
806 this.update(cx, |term, _| term.try_modifiers_change(&event.modifiers));
807
808 if handled {
809 cx.refresh();
810 }
811 }
812 });
813
814 for rect in &layout.rects {
815 rect.paint(origin, &layout, cx);
816 }
817
818 cx.with_z_index(1, |cx| {
819 for (relative_highlighted_range, color) in
820 layout.relative_highlighted_ranges.iter()
821 {
822 if let Some((start_y, highlighted_range_lines)) =
823 to_highlighted_range_lines(relative_highlighted_range, &layout, origin)
824 {
825 let hr = HighlightedRange {
826 start_y, //Need to change this
827 line_height: layout.dimensions.line_height,
828 lines: highlighted_range_lines,
829 color: *color,
830 //Copied from editor. TODO: move to theme or something
831 corner_radius: 0.15 * layout.dimensions.line_height,
832 };
833 hr.paint(bounds, cx);
834 }
835 }
836 });
837
838 cx.with_z_index(2, |cx| {
839 for cell in &layout.cells {
840 cell.paint(origin, &layout, bounds, cx);
841 }
842 });
843
844 if self.cursor_visible {
845 cx.with_z_index(3, |cx| {
846 if let Some(cursor) = &layout.cursor {
847 cursor.paint(origin, cx);
848 }
849 });
850 }
851
852 if let Some(mut element) = layout.hyperlink_tooltip.take() {
853 element.draw(origin, bounds.size.map(AvailableSpace::Definite), cx)
854 }
855 });
856 }
857}
858
859impl IntoElement for TerminalElement {
860 type Element = Self;
861
862 fn element_id(&self) -> Option<ElementId> {
863 Some("terminal".into())
864 }
865
866 fn into_element(self) -> Self::Element {
867 self
868 }
869}
870
871struct TerminalInputHandler {
872 terminal: Model<Terminal>,
873 workspace: WeakView<Workspace>,
874 cursor_bounds: Option<Bounds<Pixels>>,
875}
876
877impl InputHandler for TerminalInputHandler {
878 fn selected_text_range(&mut self, cx: &mut WindowContext) -> Option<std::ops::Range<usize>> {
879 if self
880 .terminal
881 .read(cx)
882 .last_content
883 .mode
884 .contains(TermMode::ALT_SCREEN)
885 {
886 None
887 } else {
888 Some(0..0)
889 }
890 }
891
892 fn marked_text_range(&mut self, _: &mut WindowContext) -> Option<std::ops::Range<usize>> {
893 None
894 }
895
896 fn text_for_range(
897 &mut self,
898 _: std::ops::Range<usize>,
899 _: &mut WindowContext,
900 ) -> Option<String> {
901 None
902 }
903
904 fn replace_text_in_range(
905 &mut self,
906 _replacement_range: Option<std::ops::Range<usize>>,
907 text: &str,
908 cx: &mut WindowContext,
909 ) {
910 self.terminal.update(cx, |terminal, _| {
911 terminal.input(text.into());
912 });
913
914 self.workspace
915 .update(cx, |this, cx| {
916 let telemetry = this.project().read(cx).client().telemetry().clone();
917 telemetry.log_edit_event("terminal");
918 })
919 .ok();
920 }
921
922 fn replace_and_mark_text_in_range(
923 &mut self,
924 _range_utf16: Option<std::ops::Range<usize>>,
925 _new_text: &str,
926 _new_selected_range: Option<std::ops::Range<usize>>,
927 _: &mut WindowContext,
928 ) {
929 }
930
931 fn unmark_text(&mut self, _: &mut WindowContext) {}
932
933 fn bounds_for_range(
934 &mut self,
935 _range_utf16: std::ops::Range<usize>,
936 _: &mut WindowContext,
937 ) -> Option<Bounds<Pixels>> {
938 self.cursor_bounds
939 }
940}
941
942fn is_blank(cell: &IndexedCell) -> bool {
943 if cell.c != ' ' {
944 return false;
945 }
946
947 if cell.bg != AnsiColor::Named(NamedColor::Background) {
948 return false;
949 }
950
951 if cell.hyperlink().is_some() {
952 return false;
953 }
954
955 if cell
956 .flags
957 .intersects(Flags::ALL_UNDERLINES | Flags::INVERSE | Flags::STRIKEOUT)
958 {
959 return false;
960 }
961
962 return true;
963}
964
965fn to_highlighted_range_lines(
966 range: &RangeInclusive<AlacPoint>,
967 layout: &LayoutState,
968 origin: Point<Pixels>,
969) -> Option<(Pixels, Vec<HighlightedRangeLine>)> {
970 // Step 1. Normalize the points to be viewport relative.
971 // When display_offset = 1, here's how the grid is arranged:
972 //-2,0 -2,1...
973 //--- Viewport top
974 //-1,0 -1,1...
975 //--------- Terminal Top
976 // 0,0 0,1...
977 // 1,0 1,1...
978 //--- Viewport Bottom
979 // 2,0 2,1...
980 //--------- Terminal Bottom
981
982 // Normalize to viewport relative, from terminal relative.
983 // lines are i32s, which are negative above the top left corner of the terminal
984 // If the user has scrolled, we use the display_offset to tell us which offset
985 // of the grid data we should be looking at. But for the rendering step, we don't
986 // want negatives. We want things relative to the 'viewport' (the area of the grid
987 // which is currently shown according to the display offset)
988 let unclamped_start = AlacPoint::new(
989 range.start().line + layout.display_offset,
990 range.start().column,
991 );
992 let unclamped_end =
993 AlacPoint::new(range.end().line + layout.display_offset, range.end().column);
994
995 // Step 2. Clamp range to viewport, and return None if it doesn't overlap
996 if unclamped_end.line.0 < 0 || unclamped_start.line.0 > layout.dimensions.num_lines() as i32 {
997 return None;
998 }
999
1000 let clamped_start_line = unclamped_start.line.0.max(0) as usize;
1001 let clamped_end_line = unclamped_end
1002 .line
1003 .0
1004 .min(layout.dimensions.num_lines() as i32) as usize;
1005 //Convert the start of the range to pixels
1006 let start_y = origin.y + clamped_start_line as f32 * layout.dimensions.line_height;
1007
1008 // Step 3. Expand ranges that cross lines into a collection of single-line ranges.
1009 // (also convert to pixels)
1010 let mut highlighted_range_lines = Vec::new();
1011 for line in clamped_start_line..=clamped_end_line {
1012 let mut line_start = 0;
1013 let mut line_end = layout.dimensions.columns();
1014
1015 if line == clamped_start_line {
1016 line_start = unclamped_start.column.0;
1017 }
1018 if line == clamped_end_line {
1019 line_end = unclamped_end.column.0 + 1; // +1 for inclusive
1020 }
1021
1022 highlighted_range_lines.push(HighlightedRangeLine {
1023 start_x: origin.x + line_start as f32 * layout.dimensions.cell_width,
1024 end_x: origin.x + line_end as f32 * layout.dimensions.cell_width,
1025 });
1026 }
1027
1028 Some((start_y, highlighted_range_lines))
1029}
1030
1031/// Converts a 2, 8, or 24 bit color ANSI color to the GPUI equivalent.
1032fn convert_color(fg: &terminal::alacritty_terminal::vte::ansi::Color, theme: &Theme) -> Hsla {
1033 let colors = theme.colors();
1034 match fg {
1035 // Named and theme defined colors
1036 terminal::alacritty_terminal::vte::ansi::Color::Named(n) => match n {
1037 NamedColor::Black => colors.terminal_ansi_black,
1038 NamedColor::Red => colors.terminal_ansi_red,
1039 NamedColor::Green => colors.terminal_ansi_green,
1040 NamedColor::Yellow => colors.terminal_ansi_yellow,
1041 NamedColor::Blue => colors.terminal_ansi_blue,
1042 NamedColor::Magenta => colors.terminal_ansi_magenta,
1043 NamedColor::Cyan => colors.terminal_ansi_cyan,
1044 NamedColor::White => colors.terminal_ansi_white,
1045 NamedColor::BrightBlack => colors.terminal_ansi_bright_black,
1046 NamedColor::BrightRed => colors.terminal_ansi_bright_red,
1047 NamedColor::BrightGreen => colors.terminal_ansi_bright_green,
1048 NamedColor::BrightYellow => colors.terminal_ansi_bright_yellow,
1049 NamedColor::BrightBlue => colors.terminal_ansi_bright_blue,
1050 NamedColor::BrightMagenta => colors.terminal_ansi_bright_magenta,
1051 NamedColor::BrightCyan => colors.terminal_ansi_bright_cyan,
1052 NamedColor::BrightWhite => colors.terminal_ansi_bright_white,
1053 NamedColor::Foreground => colors.text,
1054 NamedColor::Background => colors.background,
1055 NamedColor::Cursor => theme.players().local().cursor,
1056 NamedColor::DimBlack => colors.terminal_ansi_dim_black,
1057 NamedColor::DimRed => colors.terminal_ansi_dim_red,
1058 NamedColor::DimGreen => colors.terminal_ansi_dim_green,
1059 NamedColor::DimYellow => colors.terminal_ansi_dim_yellow,
1060 NamedColor::DimBlue => colors.terminal_ansi_dim_blue,
1061 NamedColor::DimMagenta => colors.terminal_ansi_dim_magenta,
1062 NamedColor::DimCyan => colors.terminal_ansi_dim_cyan,
1063 NamedColor::DimWhite => colors.terminal_ansi_dim_white,
1064 NamedColor::BrightForeground => colors.terminal_bright_foreground,
1065 NamedColor::DimForeground => colors.terminal_dim_foreground,
1066 },
1067 // 'True' colors
1068 terminal::alacritty_terminal::vte::ansi::Color::Spec(rgb) => {
1069 terminal::rgba_color(rgb.r, rgb.g, rgb.b)
1070 }
1071 // 8 bit, indexed colors
1072 terminal::alacritty_terminal::vte::ansi::Color::Indexed(i) => {
1073 terminal::get_color_at_index(*i as usize, theme)
1074 }
1075 }
1076}