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, Styled, TextRun, TextStyle,
8 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 fg = convert_color(&fg, &colors);
333 // let bg = convert_color(&bg, &colors);
334
335 let underline = (flags.intersects(Flags::ALL_UNDERLINES)
336 || indexed.cell.hyperlink().is_some())
337 .then(|| UnderlineStyle {
338 color: Some(fg),
339 thickness: Pixels::from(1.0),
340 wavy: flags.contains(Flags::UNDERCURL),
341 });
342
343 let weight = if flags.intersects(Flags::BOLD | Flags::DIM_BOLD) {
344 FontWeight::BOLD
345 } else {
346 FontWeight::NORMAL
347 };
348
349 let style = if flags.intersects(Flags::ITALIC) {
350 FontStyle::Italic
351 } else {
352 FontStyle::Normal
353 };
354
355 let mut result = TextRun {
356 len: indexed.c.len_utf8() as usize,
357 color: fg,
358 background_color: None,
359 font: Font {
360 weight,
361 style,
362 ..text_style.font()
363 },
364 underline,
365 };
366
367 if let Some((style, range)) = hyperlink {
368 if range.contains(&indexed.point) {
369 if let Some(underline) = style.underline {
370 result.underline = Some(underline);
371 }
372
373 if let Some(color) = style.color {
374 result.color = color;
375 }
376 }
377 }
378
379 result
380 }
381
382 fn compute_layout(&self, bounds: Bounds<gpui::Pixels>, cx: &mut ElementContext) -> LayoutState {
383 let settings = ThemeSettings::get_global(cx).clone();
384
385 let buffer_font_size = settings.buffer_font_size(cx);
386
387 let terminal_settings = TerminalSettings::get_global(cx);
388 let font_family = terminal_settings
389 .font_family
390 .as_ref()
391 .map(|string| string.clone().into())
392 .unwrap_or(settings.buffer_font.family);
393
394 let font_features = terminal_settings
395 .font_features
396 .clone()
397 .unwrap_or(settings.buffer_font.features.clone());
398
399 let line_height = terminal_settings.line_height.value();
400 let font_size = terminal_settings.font_size.clone();
401
402 let font_size =
403 font_size.map_or(buffer_font_size, |size| theme::adjusted_font_size(size, cx));
404
405 let theme = cx.theme().clone();
406
407 let link_style = HighlightStyle {
408 color: Some(theme.colors().link_text_hover),
409 font_weight: None,
410 font_style: None,
411 background_color: None,
412 underline: Some(UnderlineStyle {
413 thickness: px(1.0),
414 color: Some(theme.colors().link_text_hover),
415 wavy: false,
416 }),
417 fade_out: None,
418 };
419
420 let text_style = TextStyle {
421 font_family,
422 font_features,
423 font_size: font_size.into(),
424 font_style: FontStyle::Normal,
425 line_height: line_height.into(),
426 background_color: None,
427 white_space: WhiteSpace::Normal,
428 // These are going to be overridden per-cell
429 underline: None,
430 color: theme.colors().text,
431 font_weight: FontWeight::NORMAL,
432 };
433
434 let text_system = cx.text_system();
435 let selection_color = theme.players().local();
436 let match_color = theme.colors().search_match_background;
437 let gutter;
438 let dimensions = {
439 let rem_size = cx.rem_size();
440 let font_pixels = text_style.font_size.to_pixels(rem_size);
441 let line_height = font_pixels * line_height.to_pixels(rem_size);
442 let font_id = cx.text_system().resolve_font(&text_style.font());
443
444 let cell_width = text_system
445 .advance(font_id, font_pixels, 'm')
446 .unwrap()
447 .width;
448 gutter = cell_width;
449
450 let mut size = bounds.size.clone();
451 size.width -= gutter;
452
453 // https://github.com/zed-industries/zed/issues/2750
454 // if the terminal is one column wide, rendering 🦀
455 // causes alacritty to misbehave.
456 if size.width < cell_width * 2.0 {
457 size.width = cell_width * 2.0;
458 }
459
460 TerminalSize::new(line_height, cell_width, size)
461 };
462
463 let search_matches = self.terminal.read(cx).matches.clone();
464
465 let background_color = theme.colors().terminal_background;
466
467 let last_hovered_word = self.terminal.update(cx, |terminal, cx| {
468 terminal.set_size(dimensions);
469 terminal.sync(cx);
470 if self.can_navigate_to_selected_word && terminal.can_navigate_to_selected_word() {
471 terminal.last_content.last_hovered_word.clone()
472 } else {
473 None
474 }
475 });
476
477 let interactive_text_bounds = InteractiveBounds {
478 bounds,
479 stacking_order: cx.stacking_order().clone(),
480 };
481 if interactive_text_bounds.visibly_contains(&cx.mouse_position(), cx) {
482 if self.can_navigate_to_selected_word && last_hovered_word.is_some() {
483 cx.set_cursor_style(gpui::CursorStyle::PointingHand)
484 } else {
485 cx.set_cursor_style(gpui::CursorStyle::IBeam)
486 }
487 }
488
489 let hyperlink_tooltip = last_hovered_word.clone().map(|hovered_word| {
490 div()
491 .size_full()
492 .id("terminal-element")
493 .tooltip(move |cx| Tooltip::text(hovered_word.word.clone(), cx))
494 .into_any_element()
495 });
496
497 let TerminalContent {
498 cells,
499 mode,
500 display_offset,
501 cursor_char,
502 selection,
503 cursor,
504 ..
505 } = &self.terminal.read(cx).last_content;
506
507 // searches, highlights to a single range representations
508 let mut relative_highlighted_ranges = Vec::new();
509 for search_match in search_matches {
510 relative_highlighted_ranges.push((search_match, match_color))
511 }
512 if let Some(selection) = selection {
513 relative_highlighted_ranges
514 .push((selection.start..=selection.end, selection_color.cursor));
515 }
516
517 // then have that representation be converted to the appropriate highlight data structure
518
519 let (cells, rects) = TerminalElement::layout_grid(
520 cells,
521 &text_style,
522 &cx.text_system(),
523 last_hovered_word
524 .as_ref()
525 .map(|last_hovered_word| (link_style, &last_hovered_word.word_match)),
526 cx,
527 );
528
529 // Layout cursor. Rectangle is used for IME, so we should lay it out even
530 // if we don't end up showing it.
531 let cursor = if let AlacCursorShape::Hidden = cursor.shape {
532 None
533 } else {
534 let cursor_point = DisplayCursor::from(cursor.point, *display_offset);
535 let cursor_text = {
536 let str_trxt = cursor_char.to_string();
537 let len = str_trxt.len();
538 cx.text_system()
539 .shape_line(
540 str_trxt.into(),
541 text_style.font_size.to_pixels(cx.rem_size()),
542 &[TextRun {
543 len,
544 font: text_style.font(),
545 color: theme.colors().terminal_background,
546 background_color: None,
547 underline: Default::default(),
548 }],
549 )
550 .unwrap()
551 };
552
553 let focused = self.focused;
554 TerminalElement::shape_cursor(cursor_point, dimensions, &cursor_text).map(
555 move |(cursor_position, block_width)| {
556 let (shape, text) = match cursor.shape {
557 AlacCursorShape::Block if !focused => (CursorShape::Hollow, None),
558 AlacCursorShape::Block => (CursorShape::Block, Some(cursor_text)),
559 AlacCursorShape::Underline => (CursorShape::Underscore, None),
560 AlacCursorShape::Beam => (CursorShape::Bar, None),
561 AlacCursorShape::HollowBlock => (CursorShape::Hollow, None),
562 //This case is handled in the if wrapping the whole cursor layout
563 AlacCursorShape::Hidden => unreachable!(),
564 };
565
566 Cursor::new(
567 cursor_position,
568 block_width,
569 dimensions.line_height,
570 theme.players().local().cursor,
571 shape,
572 text,
573 None,
574 )
575 },
576 )
577 };
578
579 LayoutState {
580 cells,
581 cursor,
582 background_color,
583 dimensions,
584 rects,
585 relative_highlighted_ranges,
586 mode: *mode,
587 display_offset: *display_offset,
588 hyperlink_tooltip,
589 gutter,
590 }
591 }
592
593 fn generic_button_handler<E>(
594 connection: Model<Terminal>,
595 origin: Point<Pixels>,
596 focus_handle: FocusHandle,
597 f: impl Fn(&mut Terminal, Point<Pixels>, &E, &mut ModelContext<Terminal>),
598 ) -> impl Fn(&E, &mut WindowContext) {
599 move |event, cx| {
600 cx.focus(&focus_handle);
601 connection.update(cx, |terminal, cx| {
602 f(terminal, origin, event, cx);
603
604 cx.notify();
605 })
606 }
607 }
608
609 fn register_mouse_listeners(
610 &mut self,
611 origin: Point<Pixels>,
612 mode: TermMode,
613 bounds: Bounds<Pixels>,
614 cx: &mut ElementContext,
615 ) {
616 let focus = self.focus.clone();
617 let terminal = self.terminal.clone();
618 let interactive_bounds = InteractiveBounds {
619 bounds: bounds.intersect(&cx.content_mask().bounds),
620 stacking_order: cx.stacking_order().clone(),
621 };
622
623 self.interactivity.on_mouse_down(MouseButton::Left, {
624 let terminal = terminal.clone();
625 let focus = focus.clone();
626 move |e, cx| {
627 cx.focus(&focus);
628 terminal.update(cx, |terminal, cx| {
629 terminal.mouse_down(&e, origin);
630 cx.notify();
631 })
632 }
633 });
634
635 cx.on_mouse_event({
636 let bounds = bounds.clone();
637 let focus = self.focus.clone();
638 let terminal = self.terminal.clone();
639 move |e: &MouseMoveEvent, phase, cx| {
640 if phase != DispatchPhase::Bubble || !focus.is_focused(cx) {
641 return;
642 }
643
644 if e.pressed_button.is_some() && !cx.has_active_drag() {
645 let visibly_contains = interactive_bounds.visibly_contains(&e.position, cx);
646 terminal.update(cx, |terminal, cx| {
647 if !terminal.selection_started() {
648 if visibly_contains {
649 terminal.mouse_drag(e, origin, bounds);
650 cx.notify();
651 }
652 } else {
653 terminal.mouse_drag(e, origin, bounds);
654 cx.notify();
655 }
656 })
657 }
658
659 if interactive_bounds.visibly_contains(&e.position, cx) {
660 terminal.update(cx, |terminal, cx| {
661 terminal.mouse_move(&e, origin);
662 cx.notify();
663 })
664 }
665 }
666 });
667
668 self.interactivity.on_mouse_up(
669 MouseButton::Left,
670 TerminalElement::generic_button_handler(
671 terminal.clone(),
672 origin,
673 focus.clone(),
674 move |terminal, origin, e, cx| {
675 terminal.mouse_up(&e, origin, cx);
676 },
677 ),
678 );
679 self.interactivity.on_scroll_wheel({
680 let terminal = terminal.clone();
681 move |e, cx| {
682 terminal.update(cx, |terminal, cx| {
683 terminal.scroll_wheel(e, origin);
684 cx.notify();
685 })
686 }
687 });
688
689 // Mouse mode handlers:
690 // All mouse modes need the extra click handlers
691 if mode.intersects(TermMode::MOUSE_MODE) {
692 self.interactivity.on_mouse_down(
693 MouseButton::Right,
694 TerminalElement::generic_button_handler(
695 terminal.clone(),
696 origin,
697 focus.clone(),
698 move |terminal, origin, e, _cx| {
699 terminal.mouse_down(&e, origin);
700 },
701 ),
702 );
703 self.interactivity.on_mouse_down(
704 MouseButton::Middle,
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_up(
715 MouseButton::Right,
716 TerminalElement::generic_button_handler(
717 terminal.clone(),
718 origin,
719 focus.clone(),
720 move |terminal, origin, e, cx| {
721 terminal.mouse_up(&e, origin, cx);
722 },
723 ),
724 );
725 self.interactivity.on_mouse_up(
726 MouseButton::Middle,
727 TerminalElement::generic_button_handler(
728 terminal,
729 origin,
730 focus,
731 move |terminal, origin, e, cx| {
732 terminal.mouse_up(&e, origin, cx);
733 },
734 ),
735 );
736 }
737 }
738}
739
740impl Element for TerminalElement {
741 type State = InteractiveElementState;
742
743 fn request_layout(
744 &mut self,
745 element_state: Option<Self::State>,
746 cx: &mut ElementContext<'_>,
747 ) -> (LayoutId, Self::State) {
748 let (layout_id, interactive_state) =
749 self.interactivity
750 .layout(element_state, cx, |mut style, cx| {
751 style.size.width = relative(1.).into();
752 style.size.height = relative(1.).into();
753 let layout_id = cx.request_layout(&style, None);
754
755 layout_id
756 });
757
758 (layout_id, interactive_state)
759 }
760
761 fn paint(
762 &mut self,
763 bounds: Bounds<Pixels>,
764 state: &mut Self::State,
765 cx: &mut ElementContext<'_>,
766 ) {
767 let mut layout = self.compute_layout(bounds, cx);
768
769 cx.paint_quad(fill(bounds, layout.background_color));
770 let origin = bounds.origin + Point::new(layout.gutter, px(0.));
771
772 let terminal_input_handler = TerminalInputHandler {
773 terminal: self.terminal.clone(),
774 cursor_bounds: layout
775 .cursor
776 .as_ref()
777 .map(|cursor| cursor.bounding_rect(origin)),
778 workspace: self.workspace.clone(),
779 };
780
781 self.register_mouse_listeners(origin, layout.mode, bounds, cx);
782
783 self.interactivity
784 .paint(bounds, bounds.size, state, cx, |_, _, cx| {
785 cx.handle_input(&self.focus, terminal_input_handler);
786
787 cx.on_key_event({
788 let this = self.terminal.clone();
789 move |event: &ModifiersChangedEvent, phase, cx| {
790 if phase != DispatchPhase::Bubble {
791 return;
792 }
793
794 let handled =
795 this.update(cx, |term, _| term.try_modifiers_change(&event.modifiers));
796
797 if handled {
798 cx.refresh();
799 }
800 }
801 });
802
803 for rect in &layout.rects {
804 rect.paint(origin, &layout, cx);
805 }
806
807 cx.with_z_index(1, |cx| {
808 for (relative_highlighted_range, color) in
809 layout.relative_highlighted_ranges.iter()
810 {
811 if let Some((start_y, highlighted_range_lines)) =
812 to_highlighted_range_lines(relative_highlighted_range, &layout, origin)
813 {
814 let hr = HighlightedRange {
815 start_y, //Need to change this
816 line_height: layout.dimensions.line_height,
817 lines: highlighted_range_lines,
818 color: color.clone(),
819 //Copied from editor. TODO: move to theme or something
820 corner_radius: 0.15 * layout.dimensions.line_height,
821 };
822 hr.paint(bounds, cx);
823 }
824 }
825 });
826
827 cx.with_z_index(2, |cx| {
828 for cell in &layout.cells {
829 cell.paint(origin, &layout, bounds, cx);
830 }
831 });
832
833 if self.cursor_visible {
834 cx.with_z_index(3, |cx| {
835 if let Some(cursor) = &layout.cursor {
836 cursor.paint(origin, cx);
837 }
838 });
839 }
840
841 if let Some(mut element) = layout.hyperlink_tooltip.take() {
842 element.draw(origin, bounds.size.map(AvailableSpace::Definite), cx)
843 }
844 });
845 }
846}
847
848impl IntoElement for TerminalElement {
849 type Element = Self;
850
851 fn element_id(&self) -> Option<ElementId> {
852 Some("terminal".into())
853 }
854
855 fn into_element(self) -> Self::Element {
856 self
857 }
858}
859
860struct TerminalInputHandler {
861 terminal: Model<Terminal>,
862 workspace: WeakView<Workspace>,
863 cursor_bounds: Option<Bounds<Pixels>>,
864}
865
866impl InputHandler for TerminalInputHandler {
867 fn selected_text_range(&mut self, cx: &mut WindowContext) -> Option<std::ops::Range<usize>> {
868 if self
869 .terminal
870 .read(cx)
871 .last_content
872 .mode
873 .contains(TermMode::ALT_SCREEN)
874 {
875 None
876 } else {
877 Some(0..0)
878 }
879 }
880
881 fn marked_text_range(&mut self, _: &mut WindowContext) -> Option<std::ops::Range<usize>> {
882 None
883 }
884
885 fn text_for_range(
886 &mut self,
887 _: std::ops::Range<usize>,
888 _: &mut WindowContext,
889 ) -> Option<String> {
890 None
891 }
892
893 fn replace_text_in_range(
894 &mut self,
895 _replacement_range: Option<std::ops::Range<usize>>,
896 text: &str,
897 cx: &mut WindowContext,
898 ) {
899 self.terminal.update(cx, |terminal, _| {
900 terminal.input(text.into());
901 });
902
903 self.workspace
904 .update(cx, |this, cx| {
905 let telemetry = this.project().read(cx).client().telemetry().clone();
906 telemetry.log_edit_event("terminal");
907 })
908 .ok();
909 }
910
911 fn replace_and_mark_text_in_range(
912 &mut self,
913 _range_utf16: Option<std::ops::Range<usize>>,
914 _new_text: &str,
915 _new_selected_range: Option<std::ops::Range<usize>>,
916 _: &mut WindowContext,
917 ) {
918 }
919
920 fn unmark_text(&mut self, _: &mut WindowContext) {}
921
922 fn bounds_for_range(
923 &mut self,
924 _range_utf16: std::ops::Range<usize>,
925 _: &mut WindowContext,
926 ) -> Option<Bounds<Pixels>> {
927 self.cursor_bounds
928 }
929}
930
931fn is_blank(cell: &IndexedCell) -> bool {
932 if cell.c != ' ' {
933 return false;
934 }
935
936 if cell.bg != AnsiColor::Named(NamedColor::Background) {
937 return false;
938 }
939
940 if cell.hyperlink().is_some() {
941 return false;
942 }
943
944 if cell
945 .flags
946 .intersects(Flags::ALL_UNDERLINES | Flags::INVERSE | Flags::STRIKEOUT)
947 {
948 return false;
949 }
950
951 return true;
952}
953
954fn to_highlighted_range_lines(
955 range: &RangeInclusive<AlacPoint>,
956 layout: &LayoutState,
957 origin: Point<Pixels>,
958) -> Option<(Pixels, Vec<HighlightedRangeLine>)> {
959 // Step 1. Normalize the points to be viewport relative.
960 // When display_offset = 1, here's how the grid is arranged:
961 //-2,0 -2,1...
962 //--- Viewport top
963 //-1,0 -1,1...
964 //--------- Terminal Top
965 // 0,0 0,1...
966 // 1,0 1,1...
967 //--- Viewport Bottom
968 // 2,0 2,1...
969 //--------- Terminal Bottom
970
971 // Normalize to viewport relative, from terminal relative.
972 // lines are i32s, which are negative above the top left corner of the terminal
973 // If the user has scrolled, we use the display_offset to tell us which offset
974 // of the grid data we should be looking at. But for the rendering step, we don't
975 // want negatives. We want things relative to the 'viewport' (the area of the grid
976 // which is currently shown according to the display offset)
977 let unclamped_start = AlacPoint::new(
978 range.start().line + layout.display_offset,
979 range.start().column,
980 );
981 let unclamped_end =
982 AlacPoint::new(range.end().line + layout.display_offset, range.end().column);
983
984 // Step 2. Clamp range to viewport, and return None if it doesn't overlap
985 if unclamped_end.line.0 < 0 || unclamped_start.line.0 > layout.dimensions.num_lines() as i32 {
986 return None;
987 }
988
989 let clamped_start_line = unclamped_start.line.0.max(0) as usize;
990 let clamped_end_line = unclamped_end
991 .line
992 .0
993 .min(layout.dimensions.num_lines() as i32) as usize;
994 //Convert the start of the range to pixels
995 let start_y = origin.y + clamped_start_line as f32 * layout.dimensions.line_height;
996
997 // Step 3. Expand ranges that cross lines into a collection of single-line ranges.
998 // (also convert to pixels)
999 let mut highlighted_range_lines = Vec::new();
1000 for line in clamped_start_line..=clamped_end_line {
1001 let mut line_start = 0;
1002 let mut line_end = layout.dimensions.columns();
1003
1004 if line == clamped_start_line {
1005 line_start = unclamped_start.column.0 as usize;
1006 }
1007 if line == clamped_end_line {
1008 line_end = unclamped_end.column.0 as usize + 1; //+1 for inclusive
1009 }
1010
1011 highlighted_range_lines.push(HighlightedRangeLine {
1012 start_x: origin.x + line_start as f32 * layout.dimensions.cell_width,
1013 end_x: origin.x + line_end as f32 * layout.dimensions.cell_width,
1014 });
1015 }
1016
1017 Some((start_y, highlighted_range_lines))
1018}
1019
1020/// Converts a 2, 8, or 24 bit color ANSI color to the GPUI equivalent.
1021fn convert_color(fg: &terminal::alacritty_terminal::vte::ansi::Color, theme: &Theme) -> Hsla {
1022 let colors = theme.colors();
1023 match fg {
1024 // Named and theme defined colors
1025 terminal::alacritty_terminal::vte::ansi::Color::Named(n) => match n {
1026 NamedColor::Black => colors.terminal_ansi_black,
1027 NamedColor::Red => colors.terminal_ansi_red,
1028 NamedColor::Green => colors.terminal_ansi_green,
1029 NamedColor::Yellow => colors.terminal_ansi_yellow,
1030 NamedColor::Blue => colors.terminal_ansi_blue,
1031 NamedColor::Magenta => colors.terminal_ansi_magenta,
1032 NamedColor::Cyan => colors.terminal_ansi_cyan,
1033 NamedColor::White => colors.terminal_ansi_white,
1034 NamedColor::BrightBlack => colors.terminal_ansi_bright_black,
1035 NamedColor::BrightRed => colors.terminal_ansi_bright_red,
1036 NamedColor::BrightGreen => colors.terminal_ansi_bright_green,
1037 NamedColor::BrightYellow => colors.terminal_ansi_bright_yellow,
1038 NamedColor::BrightBlue => colors.terminal_ansi_bright_blue,
1039 NamedColor::BrightMagenta => colors.terminal_ansi_bright_magenta,
1040 NamedColor::BrightCyan => colors.terminal_ansi_bright_cyan,
1041 NamedColor::BrightWhite => colors.terminal_ansi_bright_white,
1042 NamedColor::Foreground => colors.text,
1043 NamedColor::Background => colors.background,
1044 NamedColor::Cursor => theme.players().local().cursor,
1045 NamedColor::DimBlack => colors.terminal_ansi_dim_black,
1046 NamedColor::DimRed => colors.terminal_ansi_dim_red,
1047 NamedColor::DimGreen => colors.terminal_ansi_dim_green,
1048 NamedColor::DimYellow => colors.terminal_ansi_dim_yellow,
1049 NamedColor::DimBlue => colors.terminal_ansi_dim_blue,
1050 NamedColor::DimMagenta => colors.terminal_ansi_dim_magenta,
1051 NamedColor::DimCyan => colors.terminal_ansi_dim_cyan,
1052 NamedColor::DimWhite => colors.terminal_ansi_dim_white,
1053 NamedColor::BrightForeground => colors.terminal_bright_foreground,
1054 NamedColor::DimForeground => colors.terminal_dim_foreground,
1055 },
1056 // 'True' colors
1057 terminal::alacritty_terminal::vte::ansi::Color::Spec(rgb) => {
1058 terminal::rgba_color(rgb.r, rgb.g, rgb.b)
1059 }
1060 // 8 bit, indexed colors
1061 terminal::alacritty_terminal::vte::ansi::Color::Indexed(i) => {
1062 terminal::get_color_at_index(*i as usize, theme)
1063 }
1064 }
1065}