PresenterBase.ts
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import { View, Subview, OnSubviewCreated } from "./ViewBase";
import { CompositeDisposable } from "simba-eventkit";
let presenterViewFactory: (<P, V extends View, PR extends Presenter<P, V>>(presenterCls: { new(): PR, uuid: string }) => Promise<V>) & { preloadView: (presenterCls: { new(): Presenter, uuid: string }) => Promise<void> };
export function setPresenterViewFactory(factory: typeof presenterViewFactory) {
presenterViewFactory = factory;
}
let subpresenterFactory: (subview: Subview) => Subpresenter;
export function setSubpresenterwFactory(factory: (subview: Subview) => Subpresenter) {
subpresenterFactory = factory;
}
let currentCreatingPresenter: Presenter<any, any> | undefined;
/**
* 加载预制与Presenter
* @param presenterCls
* @returns
*/
export async function createPresenter<P, V extends View, PR extends Presenter<P, V>>(presenterCls: { new(): PR, uuid: string }): Promise<PR> {
await presenterViewFactory.preloadView(presenterCls as any);
if (currentCreatingPresenter) {
console.warn("create presenter simultaneously will cause sub presenters error!");
}
let presenter = currentCreatingPresenter = new presenterCls;
let view = await presenterViewFactory<P, V, PR>(presenterCls);
presenter.attachView(view);
currentCreatingPresenter = undefined;
return presenter;
}
OnSubviewCreated.on((subview) => {
if (!currentCreatingPresenter) {
return;
}
let presenter = subpresenterFactory(subview);
presenter.owner = currentCreatingPresenter;
(currentCreatingPresenter as any)._subpresenters.push(presenter);
});
export type PresenterParamType<T> = T extends Presenter<infer U, any> ? U : any;
class PresenterBase {
protected _disposable: CompositeDisposable;
onShow() {
}
onHide() {
}
}
export class Subpresenter<V extends Subview = Subview, Owner extends Presenter<any, any> = Presenter<any, any>> extends PresenterBase {
owner: Owner;
_view: Subview;
get view() { return this._view as V; }
attachView(view: V) {
this._view = view;
}
onOpen() {
this._disposable = new CompositeDisposable;
this._disposable.add(this._view.onShow.on(() => this.onShow()));
this._disposable.add(this._view.onHide.on(() => this.onHide()));
}
onClose() {
this._disposable.dispose();
}
onOwnerShow() {
}
onOwnerHide() {
}
onOwnerEnterForeground() {
}
onOwnerEnterBackground() {
}
}
export class Presenter<P = undefined, V extends View = View> extends PresenterBase {
protected _view: V;
protected _isInBackground = false;
protected _subpresenters: Subpresenter[] = [];
get view() { return this._view as V; }
open = (parent: View, props: P) => {
this._view.open(parent);
this.onOpen(props);
}
attachView(view: V) {
this._view = view;
}
onOpen(props: P) {
this._disposable = new CompositeDisposable;
this._disposable.add(this._view.onClose.on(() => this.onClose()));
this._disposable.add(this._view.onShow.on(() => this.onShow()));
this._disposable.add(this._view.onHide.on(() => this.onHide()));
this._subpresenters.forEach((p) => {
p.onOpen();
});
if(CC_DEV){
globalThis[`${this._view['node']['name']}`] = this;
}
}
onClose() {
this._disposable.dispose();
this._subpresenters.forEach((p) => {
p.onClose();
});
}
onShow() {
this._subpresenters.forEach((p) => {
p.onOwnerShow();
});
}
onHide() {
this._subpresenters.forEach((p) => {
p.onOwnerHide();
});
}
/**presenter进入前景 */
onEnterForeground() {
this._isInBackground = false;
this._subpresenters.forEach((p) => {
p.onOwnerEnterForeground();
});
}
onEnterBackground() {
this._isInBackground = true;
this._subpresenters.forEach((p) => {
p.onOwnerEnterBackground();
});
}
}