1use crate::Workspace;
  2use gpui::{
  3    div, px, AnyView, AppContext, Component, Div, ParentElement, Render, StatelessInteractive,
  4    Styled, View, ViewContext, EventEmitter,
  5};
  6use std::{any::TypeId, sync::Arc};
  7use ui::v_stack;
  8
  9pub struct ModalRegistry {
 10    registered_modals: Vec<(TypeId, Box<dyn Fn(Div<Workspace>) -> Div<Workspace>>)>,
 11}
 12
 13pub trait Modal {}
 14
 15#[derive(Clone)]
 16pub struct ModalLayer {
 17    open_modal: Option<AnyView>,
 18}
 19
 20pub fn init_modal_registry(cx: &mut AppContext) {
 21    cx.set_global(ModalRegistry {
 22        registered_modals: Vec::new(),
 23    });
 24}
 25
 26struct ToggleModal {
 27    name: String,
 28}
 29
 30pub enum ModalEvents {
 31    Dismissed
 32}
 33
 34trait Modal: EventEmitter + Render {
 35    fn to_modal_events(&Self::Event) -> Option<ModalEvents>;
 36}
 37
 38impl ModalRegistry {
 39    pub fn register_modal<A: 'static, V, B>(&mut self, action: A, build_view: B)
 40    where
 41        V: Modal,
 42        B: Fn(&Workspace, &mut ViewContext<Workspace>) -> Option<View<V>> + 'static,
 43    {
 44        let build_view = Arc::new(build_view);
 45
 46        self.registered_modals.push((
 47            TypeId::of::<A>(),
 48            Box::new(move |mut div| {
 49                let build_view = build_view.clone();
 50
 51                div.on_action(
 52                    move |workspace: &mut Workspace, event: &A, cx: &mut ViewContext<Workspace>| {
 53                        let Some(new_modal) = (build_view)(workspace, cx) else {
 54                            return;
 55                        };
 56                        workspace.modal_layer.update(cx, |modal_layer, _| {
 57                            modal_layer.open_modal = Some(new_modal.into());
 58                        });
 59                        cx.subscribe(new_modal, |e, modal, cx| {
 60                            match modal.to_modal_events(e) {
 61                                Some(Dismissed) =>
 62                                dismissed -> whatever
 63                            }
 64                        })
 65
 66                        cx.notify();
 67                    },
 68                )
 69            }),
 70        ));
 71    }
 72}
 73
 74impl ModalLayer {
 75    pub fn new() -> Self {
 76        Self { open_modal: None }
 77    }
 78
 79    pub fn render(&self, workspace: &Workspace, cx: &ViewContext<Workspace>) -> Div<Workspace> {
 80        let mut parent = div().relative().size_full();
 81
 82        for (_, action) in cx.global::<ModalRegistry>().registered_modals.iter() {
 83            parent = (action)(parent);
 84        }
 85
 86        parent.when_some(self.open_modal.as_ref(), |parent, open_modal| {
 87            let container1 = div()
 88                .absolute()
 89                .flex()
 90                .flex_col()
 91                .items_center()
 92                .size_full()
 93                .top_0()
 94                .left_0()
 95                .z_index(400);
 96
 97            // transparent layer
 98            let container2 = v_stack().h(px(0.0)).relative().top_20();
 99
100            parent.child(container1.child(container2.child(open_modal.clone())))
101        })
102    }
103}
104
105// impl Render for ModalLayer {
106//     type Element = Div<Self>;
107
108//     fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
109//         let mut div = div();
110//         for (type_id, build_view) in cx.global::<ModalRegistry>().registered_modals {
111//             div = div.useful_on_action(
112//                 type_id,
113//                 Box::new(|this, _: dyn Any, phase, cx: &mut ViewContext<Self>| {
114//                     if phase == DispatchPhase::Capture {
115//                         return;
116//                     }
117//                     self.workspace.update(cx, |workspace, cx| {
118//                         self.open_modal = Some(build_view(workspace, cx));
119//                     });
120//                     cx.notify();
121//                 }),
122//             )
123//         }
124
125//         div
126//     }
127// }