32 lines
1.1 KiB
TypeScript
32 lines
1.1 KiB
TypeScript
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type Source = {
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<K extends keyof WindowEventMap>(type: K, listener: (this: Window, ev: WindowEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
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(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
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}
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interface Action1<T> {
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(arg: T): void;
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}
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interface MessageEventLike<T> {
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source: WindowLike<T>;
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origin: string;
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data: T;
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}
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interface PostMessageObject<T> {
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postMessage(message: T, host: string): void;
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}
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interface WindowLike<T> extends PostMessageObject<T> {
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addEventListener(type: "message", handler: Action1<MessageEventLike<T>>): void;
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addEventListener(type: string, handler: Action1<any>): void;
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removeEventListener(type: "message", handler: Action1<MessageEventLike<T>>): void;
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removeEventListener(type: string, handler: Action1<any>): void;
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}
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type Target = {
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(type: "message", handler: Action1<MessageEventLike<any>>): void;
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(type: string, handler: Action1<any>): void;
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};
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function f1(s: Source, t: Target) {
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t = s;
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}
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