Current File : /home/tjamichg/cursos.tjamich.gob.mx/web/assets/vrview/src/embed/iframe-message-receiver.js
/*
* Copyright 2016 Google Inc. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var EventEmitter = require('eventemitter3');
var Message = require('../message');
var Util = require('../util');
/**
* Sits in an embedded iframe, receiving messages from a containing
* iFrame. This facilitates an API which provides the following features:
*
* Playing and pausing content.
* Adding hotspots.
* Sending messages back to the containing iframe when hotspot is clicked
* Sending analytics events to containing iframe.
*
* Note: this script used to also respond to synthetic devicemotion events, but
* no longer does so. This is because as of iOS 9.2, Safari disallows listening
* for devicemotion events within cross-device iframes. To work around this, the
* webvr-polyfill responds to the postMessage event containing devicemotion
* information (sent by the iframe-message-sender in the VR View API).
*/
function IFrameMessageReceiver() {
window.addEventListener('message', this.onMessage_.bind(this), false);
}
IFrameMessageReceiver.prototype = new EventEmitter();
IFrameMessageReceiver.prototype.onMessage_ = function(event) {
if (Util.isDebug()) {
console.log('onMessage_', event);
}
var message = event.data;
var type = message.type.toLowerCase();
var data = message.data;
switch (type) {
case Message.SET_CONTENT:
case Message.SET_VOLUME:
case Message.MUTED:
case Message.ADD_HOTSPOT:
case Message.PLAY:
case Message.PAUSE:
case Message.SET_CURRENT_TIME:
case Message.GET_POSITION:
case Message.SET_FULLSCREEN:
this.emit(type, data);
break;
default:
if (Util.isDebug()) {
console.warn('Got unknown message of type %s from %s', message.type, message.origin);
}
}
};
module.exports = IFrameMessageReceiver;
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