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import { CustomMainMenuItem, ItemPatch, OverlayPatch } from 'decky-frontend-lib';
import { FC, ReactNode, createContext, useContext, useEffect, useState } from 'react';
interface PublicDeckyMenuState {
items: Set<CustomMainMenuItem>;
itemPatches: Map<string, Set<ItemPatch>>;
overlayPatches: Set<OverlayPatch>;
overlayComponents: Set<ReactNode>;
}
export class DeckyMenuState {
private _items = new Set<CustomMainMenuItem>();
private _itemPatches = new Map<string, Set<ItemPatch>>();
private _overlayPatches = new Set<OverlayPatch>();
private _overlayComponents = new Set<ReactNode>();
public eventBus = new EventTarget();
publicState(): PublicDeckyMenuState {
return {
items: this._items,
itemPatches: this._itemPatches,
overlayPatches: this._overlayPatches,
overlayComponents: this._overlayComponents,
};
}
addItem(item: CustomMainMenuItem) {
this._items.add(item);
this.notifyUpdate();
return item;
}
addPatch(path: string, patch: ItemPatch) {
let patchList = this._itemPatches.get(path);
if (!patchList) {
patchList = new Set();
this._itemPatches.set(path, patchList);
}
patchList.add(patch);
this.notifyUpdate();
return patch;
}
addOverlayPatch(patch: OverlayPatch) {
this._overlayPatches.add(patch);
this.notifyUpdate();
return patch;
}
addOverlayComponent(component: ReactNode) {
this._overlayComponents.add(component);
this.notifyUpdate();
return component;
}
removePatch(path: string, patch: ItemPatch) {
const patchList = this._itemPatches.get(path);
patchList?.delete(patch);
if (patchList?.size == 0) {
this._itemPatches.delete(path);
}
this.notifyUpdate();
}
removeItem(item: CustomMainMenuItem) {
this._items.delete(item);
this.notifyUpdate();
return item;
}
removeOverlayPatch(patch: OverlayPatch) {
this._overlayPatches.delete(patch);
this.notifyUpdate();
}
removeOverlayComponent(component: ReactNode) {
this._overlayComponents.delete(component);
this.notifyUpdate();
}
private notifyUpdate() {
this.eventBus.dispatchEvent(new Event('update'));
}
}
interface DeckyMenuStateContext extends PublicDeckyMenuState {
addItem: DeckyMenuState['addItem'];
addPatch: DeckyMenuState['addPatch'];
addOverlayPatch: DeckyMenuState['addOverlayPatch'];
addOverlayComponent: DeckyMenuState['addOverlayComponent'];
removePatch: DeckyMenuState['removePatch'];
removeOverlayPatch: DeckyMenuState['removeOverlayPatch'];
removeOverlayComponent: DeckyMenuState['removeOverlayComponent'];
removeItem: DeckyMenuState['removeItem'];
}
const DeckyMenuStateContext = createContext<DeckyMenuStateContext>(null as any);
export const useDeckyMenuState = () => useContext(DeckyMenuStateContext);
interface Props {
deckyMenuState: DeckyMenuState;
}
export const DeckyMenuStateContextProvider: FC<Props> = ({ children, deckyMenuState }) => {
const [publicDeckyMenuState, setPublicDeckyMenuState] = useState<PublicDeckyMenuState>({
...deckyMenuState.publicState(),
});
useEffect(() => {
function onUpdate() {
setPublicDeckyMenuState({ ...deckyMenuState.publicState() });
}
deckyMenuState.eventBus.addEventListener('update', onUpdate);
return () => deckyMenuState.eventBus.removeEventListener('update', onUpdate);
}, []);
const addItem = deckyMenuState.addItem.bind(deckyMenuState);
const addPatch = deckyMenuState.addPatch.bind(deckyMenuState);
const addOverlayPatch = deckyMenuState.addOverlayPatch.bind(deckyMenuState);
const addOverlayComponent = deckyMenuState.addOverlayComponent.bind(deckyMenuState);
const removePatch = deckyMenuState.removePatch.bind(deckyMenuState);
const removeOverlayPatch = deckyMenuState.removeOverlayPatch.bind(deckyMenuState);
const removeOverlayComponent = deckyMenuState.removeOverlayComponent.bind(deckyMenuState);
const removeItem = deckyMenuState.removeItem.bind(deckyMenuState);
return (
<DeckyMenuStateContext.Provider
value={{
...publicDeckyMenuState,
addItem,
addPatch,
addOverlayPatch,
addOverlayComponent,
removePatch,
removeOverlayPatch,
removeOverlayComponent,
removeItem,
}}
>
{children}
</DeckyMenuStateContext.Provider>
);
};
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