1use crate::{
  2    item::{Item, ItemEvent},
  3    ItemNavHistory, WorkspaceId,
  4};
  5use anyhow::Result;
  6use call::participant::{Frame, RemoteVideoTrack};
  7use client::{proto::PeerId, User};
  8use futures::StreamExt;
  9use gpui::{
 10    div, img, AppContext, Element, EventEmitter, FocusHandle, FocusableView, InteractiveElement,
 11    ParentElement, Render, SharedString, Styled, Task, View, ViewContext, VisualContext,
 12    WindowContext,
 13};
 14use std::sync::{Arc, Weak};
 15use ui::{h_stack, prelude::*, Icon, IconElement, Label};
 16
 17pub enum Event {
 18    Close,
 19}
 20
 21pub struct SharedScreen {
 22    track: Weak<RemoteVideoTrack>,
 23    frame: Option<Frame>,
 24    pub peer_id: PeerId,
 25    user: Arc<User>,
 26    nav_history: Option<ItemNavHistory>,
 27    _maintain_frame: Task<Result<()>>,
 28    focus: FocusHandle,
 29}
 30
 31impl SharedScreen {
 32    pub fn new(
 33        track: &Arc<RemoteVideoTrack>,
 34        peer_id: PeerId,
 35        user: Arc<User>,
 36        cx: &mut ViewContext<Self>,
 37    ) -> Self {
 38        cx.focus_handle();
 39        let mut frames = track.frames();
 40        Self {
 41            track: Arc::downgrade(track),
 42            frame: None,
 43            peer_id,
 44            user,
 45            nav_history: Default::default(),
 46            _maintain_frame: cx.spawn(|this, mut cx| async move {
 47                while let Some(frame) = frames.next().await {
 48                    this.update(&mut cx, |this, cx| {
 49                        this.frame = Some(frame);
 50                        cx.notify();
 51                    })?;
 52                }
 53                this.update(&mut cx, |_, cx| cx.emit(Event::Close))?;
 54                Ok(())
 55            }),
 56            focus: cx.focus_handle(),
 57        }
 58    }
 59}
 60
 61impl EventEmitter<Event> for SharedScreen {}
 62
 63impl FocusableView for SharedScreen {
 64    fn focus_handle(&self, _: &AppContext) -> FocusHandle {
 65        self.focus.clone()
 66    }
 67}
 68impl Render for SharedScreen {
 69    fn render(&mut self, _: &mut ViewContext<Self>) -> impl Element {
 70        div().track_focus(&self.focus).size_full().children(
 71            self.frame
 72                .as_ref()
 73                .map(|frame| img(frame.image()).size_full()),
 74        )
 75    }
 76}
 77
 78impl Item for SharedScreen {
 79    type Event = Event;
 80
 81    fn tab_tooltip_text(&self, _: &AppContext) -> Option<SharedString> {
 82        Some(format!("{}'s screen", self.user.github_login).into())
 83    }
 84
 85    fn deactivated(&mut self, cx: &mut ViewContext<Self>) {
 86        if let Some(nav_history) = self.nav_history.as_mut() {
 87            nav_history.push::<()>(None, cx);
 88        }
 89    }
 90
 91    fn tab_content(
 92        &self,
 93        _: Option<usize>,
 94        selected: bool,
 95        _: &WindowContext<'_>,
 96    ) -> gpui::AnyElement {
 97        h_stack()
 98            .gap_1()
 99            .child(IconElement::new(Icon::Screen))
100            .child(
101                Label::new(format!("{}'s screen", self.user.github_login)).color(if selected {
102                    Color::Default
103                } else {
104                    Color::Muted
105                }),
106            )
107            .into_any()
108    }
109
110    fn set_nav_history(&mut self, history: ItemNavHistory, _: &mut ViewContext<Self>) {
111        self.nav_history = Some(history);
112    }
113
114    fn clone_on_split(
115        &self,
116        _workspace_id: WorkspaceId,
117        cx: &mut ViewContext<Self>,
118    ) -> Option<View<Self>> {
119        let track = self.track.upgrade()?;
120        Some(cx.new_view(|cx| Self::new(&track, self.peer_id, self.user.clone(), cx)))
121    }
122
123    fn to_item_events(event: &Self::Event, mut f: impl FnMut(ItemEvent)) {
124        match event {
125            Event::Close => f(ItemEvent::CloseItem),
126        }
127    }
128}