Files
oak-gpui/crates/workspace2/src/modal_layer.rs
T
2023-11-08 12:49:09 -08:00

128 lines
3.7 KiB
Rust

use crate::Workspace;
use gpui::{
div, px, AnyView, AppContext, Component, Div, ParentElement, Render, StatelessInteractive,
Styled, View, ViewContext, EventEmitter,
};
use std::{any::TypeId, sync::Arc};
use ui::v_stack;
pub struct ModalRegistry {
registered_modals: Vec<(TypeId, Box<dyn Fn(Div<Workspace>) -> Div<Workspace>>)>,
}
pub trait Modal {}
#[derive(Clone)]
pub struct ModalLayer {
open_modal: Option<AnyView>,
}
pub fn init_modal_registry(cx: &mut AppContext) {
cx.set_global(ModalRegistry {
registered_modals: Vec::new(),
});
}
struct ToggleModal {
name: String,
}
pub enum ModalEvents {
Dismissed
}
trait Modal: EventEmitter + Render {
fn to_modal_events(&Self::Event) -> Option<ModalEvents>;
}
impl ModalRegistry {
pub fn register_modal<A: 'static, V, B>(&mut self, action: A, build_view: B)
where
V: Modal,
B: Fn(&Workspace, &mut ViewContext<Workspace>) -> Option<View<V>> + 'static,
{
let build_view = Arc::new(build_view);
self.registered_modals.push((
TypeId::of::<A>(),
Box::new(move |mut div| {
let build_view = build_view.clone();
div.on_action(
move |workspace: &mut Workspace, event: &A, cx: &mut ViewContext<Workspace>| {
let Some(new_modal) = (build_view)(workspace, cx) else {
return;
};
workspace.modal_layer.update(cx, |modal_layer, _| {
modal_layer.open_modal = Some(new_modal.into());
});
cx.subscribe(new_modal, |e, modal, cx| {
match modal.to_modal_events(e) {
Some(Dismissed) =>
dismissed -> whatever
}
})
cx.notify();
},
)
}),
));
}
}
impl ModalLayer {
pub fn new() -> Self {
Self { open_modal: None }
}
pub fn render(&self, workspace: &Workspace, cx: &ViewContext<Workspace>) -> Div<Workspace> {
let mut parent = div().relative().size_full();
for (_, action) in cx.global::<ModalRegistry>().registered_modals.iter() {
parent = (action)(parent);
}
parent.when_some(self.open_modal.as_ref(), |parent, open_modal| {
let container1 = div()
.absolute()
.flex()
.flex_col()
.items_center()
.size_full()
.top_0()
.left_0()
.z_index(400);
// transparent layer
let container2 = v_stack().h(px(0.0)).relative().top_20();
parent.child(container1.child(container2.child(open_modal.clone())))
})
}
}
// impl Render for ModalLayer {
// type Element = Div<Self>;
// fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
// let mut div = div();
// for (type_id, build_view) in cx.global::<ModalRegistry>().registered_modals {
// div = div.useful_on_action(
// type_id,
// Box::new(|this, _: dyn Any, phase, cx: &mut ViewContext<Self>| {
// if phase == DispatchPhase::Capture {
// return;
// }
// self.workspace.update(cx, |workspace, cx| {
// self.open_modal = Some(build_view(workspace, cx));
// });
// cx.notify();
// }),
// )
// }
// div
// }
// }