WindowEventHandlers-impl.js
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"use strict";
const { createEventAccessor } = require("../helpers/create-event-accessor");
const events = new Set([
// WindowEventHandlers
"afterprint",
"beforeprint",
"beforeunload",
"hashchange",
"languagechange",
"message",
"messageerror",
"offline",
"online",
"pagehide",
"pageshow",
"popstate",
"rejectionhandled",
"storage",
"unhandledrejection",
"unload",
// inherited and overridden
"blur",
"error",
"focus",
"load",
"resize",
"scroll"
]);
// This class builds on GlobalEventHandlers, which must be mixed in first.
class WindowEventHandlersImpl {
_proxyWindowEventsToWindow() {
// We're a <body> or <frameset>, so we need to proxy these specific events to the Window (if it exists)
this._getEventHandlerTarget = event => {
if (events.has(event)) {
return this.ownerDocument.defaultView || null;
}
return this;
};
}
}
for (const event of events) {
createEventAccessor(WindowEventHandlersImpl.prototype, event);
}
module.exports = {
implementation: WindowEventHandlersImpl
};