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() as usize,
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 .clone()
410 .unwrap_or(settings.buffer_font.features.clone());
411
412 let line_height = terminal_settings.line_height.value();
413 let font_size = terminal_settings.font_size.clone();
414
415 let font_size =
416 font_size.map_or(buffer_font_size, |size| theme::adjusted_font_size(size, cx));
417
418 let theme = cx.theme().clone();
419
420 let link_style = HighlightStyle {
421 color: Some(theme.colors().link_text_hover),
422 font_weight: None,
423 font_style: None,
424 background_color: None,
425 underline: Some(UnderlineStyle {
426 thickness: px(1.0),
427 color: Some(theme.colors().link_text_hover),
428 wavy: false,
429 }),
430 strikethrough: None,
431 fade_out: None,
432 };
433
434 let text_style = TextStyle {
435 font_family,
436 font_features,
437 font_size: font_size.into(),
438 font_style: FontStyle::Normal,
439 line_height: line_height.into(),
440 background_color: None,
441 white_space: WhiteSpace::Normal,
442 // These are going to be overridden per-cell
443 underline: None,
444 strikethrough: None,
445 color: theme.colors().text,
446 font_weight: FontWeight::NORMAL,
447 };
448
449 let text_system = cx.text_system();
450 let player_color = theme.players().local();
451 let match_color = theme.colors().search_match_background;
452 let gutter;
453 let dimensions = {
454 let rem_size = cx.rem_size();
455 let font_pixels = text_style.font_size.to_pixels(rem_size);
456 let line_height = font_pixels * line_height.to_pixels(rem_size);
457 let font_id = cx.text_system().resolve_font(&text_style.font());
458
459 let cell_width = text_system
460 .advance(font_id, font_pixels, 'm')
461 .unwrap()
462 .width;
463 gutter = cell_width;
464
465 let mut size = bounds.size.clone();
466 size.width -= gutter;
467
468 // https://github.com/zed-industries/zed/issues/2750
469 // if the terminal is one column wide, rendering 🦀
470 // causes alacritty to misbehave.
471 if size.width < cell_width * 2.0 {
472 size.width = cell_width * 2.0;
473 }
474
475 TerminalSize::new(line_height, cell_width, size)
476 };
477
478 let search_matches = self.terminal.read(cx).matches.clone();
479
480 let background_color = theme.colors().terminal_background;
481
482 let last_hovered_word = self.terminal.update(cx, |terminal, cx| {
483 terminal.set_size(dimensions);
484 terminal.sync(cx);
485 if self.can_navigate_to_selected_word && terminal.can_navigate_to_selected_word() {
486 terminal.last_content.last_hovered_word.clone()
487 } else {
488 None
489 }
490 });
491
492 if bounds.contains(&cx.mouse_position()) {
493 let stacking_order = cx.stacking_order().clone();
494 if self.can_navigate_to_selected_word && last_hovered_word.is_some() {
495 cx.set_cursor_style(gpui::CursorStyle::PointingHand, stacking_order);
496 } else {
497 cx.set_cursor_style(gpui::CursorStyle::IBeam, stacking_order);
498 }
499 }
500
501 let hyperlink_tooltip = last_hovered_word.clone().map(|hovered_word| {
502 div()
503 .size_full()
504 .id("terminal-element")
505 .tooltip(move |cx| Tooltip::text(hovered_word.word.clone(), cx))
506 .into_any_element()
507 });
508
509 let TerminalContent {
510 cells,
511 mode,
512 display_offset,
513 cursor_char,
514 selection,
515 cursor,
516 ..
517 } = &self.terminal.read(cx).last_content;
518
519 // searches, highlights to a single range representations
520 let mut relative_highlighted_ranges = Vec::new();
521 for search_match in search_matches {
522 relative_highlighted_ranges.push((search_match, match_color))
523 }
524 if let Some(selection) = selection {
525 relative_highlighted_ranges
526 .push((selection.start..=selection.end, player_color.selection));
527 }
528
529 // then have that representation be converted to the appropriate highlight data structure
530
531 let (cells, rects) = TerminalElement::layout_grid(
532 cells,
533 &text_style,
534 &cx.text_system(),
535 last_hovered_word
536 .as_ref()
537 .map(|last_hovered_word| (link_style, &last_hovered_word.word_match)),
538 cx,
539 );
540
541 // Layout cursor. Rectangle is used for IME, so we should lay it out even
542 // if we don't end up showing it.
543 let cursor = if let AlacCursorShape::Hidden = cursor.shape {
544 None
545 } else {
546 let cursor_point = DisplayCursor::from(cursor.point, *display_offset);
547 let cursor_text = {
548 let str_trxt = cursor_char.to_string();
549 let len = str_trxt.len();
550 cx.text_system()
551 .shape_line(
552 str_trxt.into(),
553 text_style.font_size.to_pixels(cx.rem_size()),
554 &[TextRun {
555 len,
556 font: text_style.font(),
557 color: theme.colors().terminal_background,
558 background_color: None,
559 underline: Default::default(),
560 strikethrough: None,
561 }],
562 )
563 .unwrap()
564 };
565
566 let focused = self.focused;
567 TerminalElement::shape_cursor(cursor_point, dimensions, &cursor_text).map(
568 move |(cursor_position, block_width)| {
569 let (shape, text) = match cursor.shape {
570 AlacCursorShape::Block if !focused => (CursorShape::Hollow, None),
571 AlacCursorShape::Block => (CursorShape::Block, Some(cursor_text)),
572 AlacCursorShape::Underline => (CursorShape::Underscore, None),
573 AlacCursorShape::Beam => (CursorShape::Bar, None),
574 AlacCursorShape::HollowBlock => (CursorShape::Hollow, None),
575 //This case is handled in the if wrapping the whole cursor layout
576 AlacCursorShape::Hidden => unreachable!(),
577 };
578
579 Cursor::new(
580 cursor_position,
581 block_width,
582 dimensions.line_height,
583 theme.players().local().cursor,
584 shape,
585 text,
586 None,
587 )
588 },
589 )
590 };
591
592 LayoutState {
593 cells,
594 cursor,
595 background_color,
596 dimensions,
597 rects,
598 relative_highlighted_ranges,
599 mode: *mode,
600 display_offset: *display_offset,
601 hyperlink_tooltip,
602 gutter,
603 }
604 }
605
606 fn generic_button_handler<E>(
607 connection: Model<Terminal>,
608 origin: Point<Pixels>,
609 focus_handle: FocusHandle,
610 f: impl Fn(&mut Terminal, Point<Pixels>, &E, &mut ModelContext<Terminal>),
611 ) -> impl Fn(&E, &mut WindowContext) {
612 move |event, cx| {
613 cx.focus(&focus_handle);
614 connection.update(cx, |terminal, cx| {
615 f(terminal, origin, event, cx);
616
617 cx.notify();
618 })
619 }
620 }
621
622 fn register_mouse_listeners(
623 &mut self,
624 origin: Point<Pixels>,
625 mode: TermMode,
626 bounds: Bounds<Pixels>,
627 cx: &mut ElementContext,
628 ) {
629 let focus = self.focus.clone();
630 let terminal = self.terminal.clone();
631 let interactive_bounds = InteractiveBounds {
632 bounds: bounds.intersect(&cx.content_mask().bounds),
633 stacking_order: cx.stacking_order().clone(),
634 };
635
636 self.interactivity.on_mouse_down(MouseButton::Left, {
637 let terminal = terminal.clone();
638 let focus = focus.clone();
639 move |e, cx| {
640 cx.focus(&focus);
641 terminal.update(cx, |terminal, cx| {
642 terminal.mouse_down(&e, origin);
643 cx.notify();
644 })
645 }
646 });
647
648 cx.on_mouse_event({
649 let bounds = bounds.clone();
650 let focus = self.focus.clone();
651 let terminal = self.terminal.clone();
652 move |e: &MouseMoveEvent, phase, cx| {
653 if phase != DispatchPhase::Bubble || !focus.is_focused(cx) {
654 return;
655 }
656
657 if e.pressed_button.is_some() && !cx.has_active_drag() {
658 let visibly_contains = interactive_bounds.visibly_contains(&e.position, cx);
659 terminal.update(cx, |terminal, cx| {
660 if !terminal.selection_started() {
661 if visibly_contains {
662 terminal.mouse_drag(e, origin, bounds);
663 cx.notify();
664 }
665 } else {
666 terminal.mouse_drag(e, origin, bounds);
667 cx.notify();
668 }
669 })
670 }
671
672 if interactive_bounds.visibly_contains(&e.position, cx) {
673 terminal.update(cx, |terminal, cx| {
674 terminal.mouse_move(&e, origin);
675 cx.notify();
676 })
677 }
678 }
679 });
680
681 self.interactivity.on_mouse_up(
682 MouseButton::Left,
683 TerminalElement::generic_button_handler(
684 terminal.clone(),
685 origin,
686 focus.clone(),
687 move |terminal, origin, e, cx| {
688 terminal.mouse_up(&e, origin, cx);
689 },
690 ),
691 );
692 self.interactivity.on_scroll_wheel({
693 let terminal = terminal.clone();
694 move |e, cx| {
695 terminal.update(cx, |terminal, cx| {
696 terminal.scroll_wheel(e, origin);
697 cx.notify();
698 })
699 }
700 });
701
702 // Mouse mode handlers:
703 // All mouse modes need the extra click handlers
704 if mode.intersects(TermMode::MOUSE_MODE) {
705 self.interactivity.on_mouse_down(
706 MouseButton::Right,
707 TerminalElement::generic_button_handler(
708 terminal.clone(),
709 origin,
710 focus.clone(),
711 move |terminal, origin, e, _cx| {
712 terminal.mouse_down(&e, origin);
713 },
714 ),
715 );
716 self.interactivity.on_mouse_down(
717 MouseButton::Middle,
718 TerminalElement::generic_button_handler(
719 terminal.clone(),
720 origin,
721 focus.clone(),
722 move |terminal, origin, e, _cx| {
723 terminal.mouse_down(&e, origin);
724 },
725 ),
726 );
727 self.interactivity.on_mouse_up(
728 MouseButton::Right,
729 TerminalElement::generic_button_handler(
730 terminal.clone(),
731 origin,
732 focus.clone(),
733 move |terminal, origin, e, cx| {
734 terminal.mouse_up(&e, origin, cx);
735 },
736 ),
737 );
738 self.interactivity.on_mouse_up(
739 MouseButton::Middle,
740 TerminalElement::generic_button_handler(
741 terminal,
742 origin,
743 focus,
744 move |terminal, origin, e, cx| {
745 terminal.mouse_up(&e, origin, cx);
746 },
747 ),
748 );
749 }
750 }
751}
752
753impl Element for TerminalElement {
754 type State = InteractiveElementState;
755
756 fn request_layout(
757 &mut self,
758 element_state: Option<Self::State>,
759 cx: &mut ElementContext<'_>,
760 ) -> (LayoutId, Self::State) {
761 let (layout_id, interactive_state) =
762 self.interactivity
763 .layout(element_state, cx, |mut style, cx| {
764 style.size.width = relative(1.).into();
765 style.size.height = relative(1.).into();
766 let layout_id = cx.request_layout(&style, None);
767
768 layout_id
769 });
770
771 (layout_id, interactive_state)
772 }
773
774 fn paint(
775 &mut self,
776 bounds: Bounds<Pixels>,
777 state: &mut Self::State,
778 cx: &mut ElementContext<'_>,
779 ) {
780 let mut layout = self.compute_layout(bounds, cx);
781
782 cx.paint_quad(fill(bounds, layout.background_color));
783 let origin = bounds.origin + Point::new(layout.gutter, px(0.));
784
785 let terminal_input_handler = TerminalInputHandler {
786 terminal: self.terminal.clone(),
787 cursor_bounds: layout
788 .cursor
789 .as_ref()
790 .map(|cursor| cursor.bounding_rect(origin)),
791 workspace: self.workspace.clone(),
792 };
793
794 self.register_mouse_listeners(origin, layout.mode, bounds, cx);
795
796 self.interactivity
797 .paint(bounds, bounds.size, state, cx, |_, _, cx| {
798 cx.handle_input(&self.focus, terminal_input_handler);
799
800 cx.on_key_event({
801 let this = self.terminal.clone();
802 move |event: &ModifiersChangedEvent, phase, cx| {
803 if phase != DispatchPhase::Bubble {
804 return;
805 }
806
807 let handled =
808 this.update(cx, |term, _| term.try_modifiers_change(&event.modifiers));
809
810 if handled {
811 cx.refresh();
812 }
813 }
814 });
815
816 for rect in &layout.rects {
817 rect.paint(origin, &layout, cx);
818 }
819
820 cx.with_z_index(1, |cx| {
821 for (relative_highlighted_range, color) in
822 layout.relative_highlighted_ranges.iter()
823 {
824 if let Some((start_y, highlighted_range_lines)) =
825 to_highlighted_range_lines(relative_highlighted_range, &layout, origin)
826 {
827 let hr = HighlightedRange {
828 start_y, //Need to change this
829 line_height: layout.dimensions.line_height,
830 lines: highlighted_range_lines,
831 color: color.clone(),
832 //Copied from editor. TODO: move to theme or something
833 corner_radius: 0.15 * layout.dimensions.line_height,
834 };
835 hr.paint(bounds, cx);
836 }
837 }
838 });
839
840 cx.with_z_index(2, |cx| {
841 for cell in &layout.cells {
842 cell.paint(origin, &layout, bounds, cx);
843 }
844 });
845
846 if self.cursor_visible {
847 cx.with_z_index(3, |cx| {
848 if let Some(cursor) = &layout.cursor {
849 cursor.paint(origin, cx);
850 }
851 });
852 }
853
854 if let Some(mut element) = layout.hyperlink_tooltip.take() {
855 element.draw(origin, bounds.size.map(AvailableSpace::Definite), cx)
856 }
857 });
858 }
859}
860
861impl IntoElement for TerminalElement {
862 type Element = Self;
863
864 fn element_id(&self) -> Option<ElementId> {
865 Some("terminal".into())
866 }
867
868 fn into_element(self) -> Self::Element {
869 self
870 }
871}
872
873struct TerminalInputHandler {
874 terminal: Model<Terminal>,
875 workspace: WeakView<Workspace>,
876 cursor_bounds: Option<Bounds<Pixels>>,
877}
878
879impl InputHandler for TerminalInputHandler {
880 fn selected_text_range(&mut self, cx: &mut WindowContext) -> Option<std::ops::Range<usize>> {
881 if self
882 .terminal
883 .read(cx)
884 .last_content
885 .mode
886 .contains(TermMode::ALT_SCREEN)
887 {
888 None
889 } else {
890 Some(0..0)
891 }
892 }
893
894 fn marked_text_range(&mut self, _: &mut WindowContext) -> Option<std::ops::Range<usize>> {
895 None
896 }
897
898 fn text_for_range(
899 &mut self,
900 _: std::ops::Range<usize>,
901 _: &mut WindowContext,
902 ) -> Option<String> {
903 None
904 }
905
906 fn replace_text_in_range(
907 &mut self,
908 _replacement_range: Option<std::ops::Range<usize>>,
909 text: &str,
910 cx: &mut WindowContext,
911 ) {
912 self.terminal.update(cx, |terminal, _| {
913 terminal.input(text.into());
914 });
915
916 self.workspace
917 .update(cx, |this, cx| {
918 let telemetry = this.project().read(cx).client().telemetry().clone();
919 telemetry.log_edit_event("terminal");
920 })
921 .ok();
922 }
923
924 fn replace_and_mark_text_in_range(
925 &mut self,
926 _range_utf16: Option<std::ops::Range<usize>>,
927 _new_text: &str,
928 _new_selected_range: Option<std::ops::Range<usize>>,
929 _: &mut WindowContext,
930 ) {
931 }
932
933 fn unmark_text(&mut self, _: &mut WindowContext) {}
934
935 fn bounds_for_range(
936 &mut self,
937 _range_utf16: std::ops::Range<usize>,
938 _: &mut WindowContext,
939 ) -> Option<Bounds<Pixels>> {
940 self.cursor_bounds
941 }
942}
943
944fn is_blank(cell: &IndexedCell) -> bool {
945 if cell.c != ' ' {
946 return false;
947 }
948
949 if cell.bg != AnsiColor::Named(NamedColor::Background) {
950 return false;
951 }
952
953 if cell.hyperlink().is_some() {
954 return false;
955 }
956
957 if cell
958 .flags
959 .intersects(Flags::ALL_UNDERLINES | Flags::INVERSE | Flags::STRIKEOUT)
960 {
961 return false;
962 }
963
964 return true;
965}
966
967fn to_highlighted_range_lines(
968 range: &RangeInclusive<AlacPoint>,
969 layout: &LayoutState,
970 origin: Point<Pixels>,
971) -> Option<(Pixels, Vec<HighlightedRangeLine>)> {
972 // Step 1. Normalize the points to be viewport relative.
973 // When display_offset = 1, here's how the grid is arranged:
974 //-2,0 -2,1...
975 //--- Viewport top
976 //-1,0 -1,1...
977 //--------- Terminal Top
978 // 0,0 0,1...
979 // 1,0 1,1...
980 //--- Viewport Bottom
981 // 2,0 2,1...
982 //--------- Terminal Bottom
983
984 // Normalize to viewport relative, from terminal relative.
985 // lines are i32s, which are negative above the top left corner of the terminal
986 // If the user has scrolled, we use the display_offset to tell us which offset
987 // of the grid data we should be looking at. But for the rendering step, we don't
988 // want negatives. We want things relative to the 'viewport' (the area of the grid
989 // which is currently shown according to the display offset)
990 let unclamped_start = AlacPoint::new(
991 range.start().line + layout.display_offset,
992 range.start().column,
993 );
994 let unclamped_end =
995 AlacPoint::new(range.end().line + layout.display_offset, range.end().column);
996
997 // Step 2. Clamp range to viewport, and return None if it doesn't overlap
998 if unclamped_end.line.0 < 0 || unclamped_start.line.0 > layout.dimensions.num_lines() as i32 {
999 return None;
1000 }
1001
1002 let clamped_start_line = unclamped_start.line.0.max(0) as usize;
1003 let clamped_end_line = unclamped_end
1004 .line
1005 .0
1006 .min(layout.dimensions.num_lines() as i32) as usize;
1007 //Convert the start of the range to pixels
1008 let start_y = origin.y + clamped_start_line as f32 * layout.dimensions.line_height;
1009
1010 // Step 3. Expand ranges that cross lines into a collection of single-line ranges.
1011 // (also convert to pixels)
1012 let mut highlighted_range_lines = Vec::new();
1013 for line in clamped_start_line..=clamped_end_line {
1014 let mut line_start = 0;
1015 let mut line_end = layout.dimensions.columns();
1016
1017 if line == clamped_start_line {
1018 line_start = unclamped_start.column.0 as usize;
1019 }
1020 if line == clamped_end_line {
1021 line_end = unclamped_end.column.0 as usize + 1; //+1 for inclusive
1022 }
1023
1024 highlighted_range_lines.push(HighlightedRangeLine {
1025 start_x: origin.x + line_start as f32 * layout.dimensions.cell_width,
1026 end_x: origin.x + line_end as f32 * layout.dimensions.cell_width,
1027 });
1028 }
1029
1030 Some((start_y, highlighted_range_lines))
1031}
1032
1033/// Converts a 2, 8, or 24 bit color ANSI color to the GPUI equivalent.
1034fn convert_color(fg: &terminal::alacritty_terminal::vte::ansi::Color, theme: &Theme) -> Hsla {
1035 let colors = theme.colors();
1036 match fg {
1037 // Named and theme defined colors
1038 terminal::alacritty_terminal::vte::ansi::Color::Named(n) => match n {
1039 NamedColor::Black => colors.terminal_ansi_black,
1040 NamedColor::Red => colors.terminal_ansi_red,
1041 NamedColor::Green => colors.terminal_ansi_green,
1042 NamedColor::Yellow => colors.terminal_ansi_yellow,
1043 NamedColor::Blue => colors.terminal_ansi_blue,
1044 NamedColor::Magenta => colors.terminal_ansi_magenta,
1045 NamedColor::Cyan => colors.terminal_ansi_cyan,
1046 NamedColor::White => colors.terminal_ansi_white,
1047 NamedColor::BrightBlack => colors.terminal_ansi_bright_black,
1048 NamedColor::BrightRed => colors.terminal_ansi_bright_red,
1049 NamedColor::BrightGreen => colors.terminal_ansi_bright_green,
1050 NamedColor::BrightYellow => colors.terminal_ansi_bright_yellow,
1051 NamedColor::BrightBlue => colors.terminal_ansi_bright_blue,
1052 NamedColor::BrightMagenta => colors.terminal_ansi_bright_magenta,
1053 NamedColor::BrightCyan => colors.terminal_ansi_bright_cyan,
1054 NamedColor::BrightWhite => colors.terminal_ansi_bright_white,
1055 NamedColor::Foreground => colors.text,
1056 NamedColor::Background => colors.background,
1057 NamedColor::Cursor => theme.players().local().cursor,
1058 NamedColor::DimBlack => colors.terminal_ansi_dim_black,
1059 NamedColor::DimRed => colors.terminal_ansi_dim_red,
1060 NamedColor::DimGreen => colors.terminal_ansi_dim_green,
1061 NamedColor::DimYellow => colors.terminal_ansi_dim_yellow,
1062 NamedColor::DimBlue => colors.terminal_ansi_dim_blue,
1063 NamedColor::DimMagenta => colors.terminal_ansi_dim_magenta,
1064 NamedColor::DimCyan => colors.terminal_ansi_dim_cyan,
1065 NamedColor::DimWhite => colors.terminal_ansi_dim_white,
1066 NamedColor::BrightForeground => colors.terminal_bright_foreground,
1067 NamedColor::DimForeground => colors.terminal_dim_foreground,
1068 },
1069 // 'True' colors
1070 terminal::alacritty_terminal::vte::ansi::Color::Spec(rgb) => {
1071 terminal::rgba_color(rgb.r, rgb.g, rgb.b)
1072 }
1073 // 8 bit, indexed colors
1074 terminal::alacritty_terminal::vte::ansi::Color::Indexed(i) => {
1075 terminal::get_color_at_index(*i as usize, theme)
1076 }
1077 }
1078}