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pubnub-remote-control.js
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pubnub-remote-control.js
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/*!
* reveal.js PubNub Remote Control Plugin v. 0.1.3
* https://github.com/salvatorecordiano/reveal-js-pubnub-remote-control-plugin/
*
* Copyright (C) 2016-2017 Salvatore Cordiano, http://www.salvatorecordiano.it/
* Released under the MIT license
*/
(function() {
'use strict';
var PubnubRemoteControl = (function () {
var defaultProperties = {
subscribeKey: null,
publishKey: null,
inputChannel: 'input',
outputChannel: 'output'
};
var thiz = function (customProperties) {
var options = {};
var pubnub;
if (customProperties && typeof customProperties === 'object') {
extendDefaultProperties(options, customProperties);
}
initPubNub();
options.publishKey && initReveal();
function initPubNub() {
pubnub = new PubNub({ publishKey: options.publishKey, subscribeKey: options.subscribeKey, ssl: true });
pubnub.subscribe({ channels: [ options.inputChannel ] });
pubnub.addListener({
message: function(event) {
processInput(event.message);
}
});
}
function initReveal() {
var indices = Reveal.getIndices();
sendUpdate(indices.h, indices.v);
Reveal.addEventListener('slidechanged', function(event) {
sendUpdate(event.indexh, event.indexv);
});
}
function sendUpdate(slide, part)
{
pubnub.publish({
channel : options.outputChannel,
message : {slide: (slide+1), part: (part+1)}
});
}
function extendDefaultProperties(options, customProperties) {
var property;
for (var property in defaultProperties) {
if (defaultProperties.hasOwnProperty(property)) {
options[property] = defaultProperties[property];
}
}
for (property in customProperties) {
if (customProperties.hasOwnProperty(property)) {
options[property] = customProperties[property];
}
}
}
function processInput(input) {
if(input && typeof input === 'object' && input.button) {
switch (input.button) {
case 'left' :
Reveal.navigateLeft();
break;
case 'right' :
Reveal.navigateRight();
break;
case 'up' :
Reveal.navigateUp();
break;
case 'down' :
Reveal.navigateDown();
break;
}
}
}
};
return thiz;
})();
Reveal.getConfig().pubnubRemoteControl && new PubnubRemoteControl(Reveal.getConfig().pubnubRemoteControl);
}());