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/**
* The Event interface represents any event which takes place in the DOM; some are user-generated (such as mouse or keyboard events), while others are generated by APIs (such as
* events that indicate an animation has finished running, a video has been paused, and so forth). While events are usually triggered by such "external" sources, they can also be
* triggered programmatically, such as by calling the HTMLElement.click() method of an element, or by defining the event, then sending it to a specified target using
* EventTarget.dispatchEvent(). There are many types of events, some of which use other interfaces based on the main Event interface. Event itself contains the properties and
* methods which are common to all events.
*/
interface Event {
/**
* Returns true or false depending on how event was initialized. True if event goes through its target's ancestors in reverse tree order, and false otherwise.
*/
readonly bubbles: boolean;
cancelBubble: boolean;
readonly cancelable: boolean;
/**
* Returns true or false depending on how event was initialized. True if event invokes listeners past a ShadowRoot node that is the root of its target, and false otherwise.
*/
readonly composed: boolean;
readonly defaultPrevented: boolean;
readonly eventPhase: number;
/**
* Returns true if event was dispatched by the user agent, and
* false otherwise.
*/
readonly isTrusted: boolean;
returnValue: boolean;
/**
* Returns the event's timestamp as the number of milliseconds measured relative to
* the time origin.
*/
readonly timeStamp: number;
/**
* Unauthorized and redirect error status codes (for example 401, 403, 301, 307)
*/
readonly status?: number | undefined;
/**
* Returns the type of event, e.g.
* "click", "hashchange", or
* "submit".
*/
readonly type: string;
readonly AT_TARGET: number;
readonly BUBBLING_PHASE: number;
readonly CAPTURING_PHASE: number;
readonly NONE: number;
composedPath(): any[];
initEvent(type: string, bubbles?: boolean, cancelable?: boolean): void;
preventDefault(): void;
/**
* Invoking this method prevents event from reaching
* any registered event listeners after the current one finishes running and, when dispatched in a tree, also prevents event from reaching any
* other objects.
*/
stopImmediatePropagation(): void;
/**
* When dispatched in a tree, invoking this method prevents event from reaching any objects other than the current object.
*/
stopPropagation(): void;
}
interface EventInit {
bubbles?: boolean | undefined;
cancelable?: boolean | undefined;
composed?: boolean | undefined;
}
interface MessageEventInit<T = any> extends EventInit {
data?: T | undefined;
lastEventId?: string | undefined;
origin?: string | undefined;
}
/** The MessageEvent interface represents a message received by a target object. */
interface MessageEvent<T = any> extends Event {
/**
* Returns the data of the message.
*/
readonly data: T;
/**
* Returns the last event ID string, for server-sent events.
*/
readonly lastEventId: string;
/**
* Returns the origin of the message, for server-sent events and
* cross-document messaging.
*/
readonly origin: string;
}
declare var MessageEvent: {
prototype: MessageEvent;
new<T>(type: string, eventInitDict?: MessageEventInit<T>): MessageEvent<T>;
};
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