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/*
TwineTubular
A twine macro for making YouTube powered background images
Hacked mercilessly into twine by Jonathan Prior
http://jonathanprior.com
HOW TO USE
<<playvideo RWgg5-kUSho 0>>
argument 1 is the ID of the YT video
argument 2 is the time you want to start the video at in seconds
argument 3 should be "loop" if you want the video to loop
argument 4 should be "sound" if you want sound from the video
so for a video that skips ahead to 20 seconds and loops:
<<playvideo RWgg5-kUSho 20 loop>>
for the same video as above, but with sound:
<<playvideo RWgg5-kUSho 20 loop sound>>
for the same video as above, with sound but not looping:
<<playvideo RWgg5-kUSho 20 noloop sound>>
The video plays automatically throughout the passage you include it in.
To stop the video, in the next passage, use the <<stopvideo>> macro
*/
window._tubular = undefined;
window.jquery_url = 'https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/';
var s = document.createElement('script');
s.src = jquery_url + 'jquery.min.js';
s.onload = function f(){
if (jQuery) {
jQuery.noConflict();
}
}
document.getElementsByTagName("head")[0].appendChild(s);
if (!document.getElementById("ytjs")) {
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
tag.id = "ytjs";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
} else {
try {
window.onYouTubeIframeAPIReady();
} catch(e) {
void(0);
}
}
macros["playvideo"]={
handler: function(place, macroName, params, parser) {
/* jQuery tubular plugin
|* by Sean McCambridge
|* http://www.seanmccambridge.com/tubular
|* version: 1.0
|* updated: October 1, 2012
|* since 2010
|* licensed under the MIT License
|* Enjoy.
|*
|* Thanks,
|* Sean */
;(function ($, window) {
// test for feature support and return if failure
// defaults
var defaults = {
ratio: 16/9, // usually either 4/3 or 16/9 -- tweak as needed
videoId: 'ZCAnLxRvNNc', // toy robot in space is a good default, no?
mute: true,
repeat: true,
width: $(window).width(),
wrapperZIndex: 99,
playButtonClass: 'tubular-play',
pauseButtonClass: 'tubular-pause',
muteButtonClass: 'tubular-mute',
volumeUpClass: 'tubular-volume-up',
volumeDownClass: 'tubular-volume-down',
increaseVolumeBy: 10,
start: 0
};
// methods
var tubular = function(node, options) { // should be called on the wrapper div
var options = $.extend({}, defaults, options),
$body = $('body') // cache body node
$node = $(node); // cache wrapper node
// build container
var tubularContainer = '<div id="tubular-container" style="overflow: hidden; position: fixed; z-index: -99; width: 100%; height: 100%; top: 0; left: 0"><div id="tubular-player" style="position: fixed"></div></div><div id="tubular-shield" style="width: 100%; height: 100%; z-index: -97; position: fixed; left: 0; top: 0;"></div>';
// set up css prereq's, inject tubular container and set up wrapper defaults
//$('html,body').css({'width': '100%', 'height': '100%'});
$body.prepend(tubularContainer);
$node.css({position: 'relative', 'z-index': options.wrapperZIndex});
// set up iframe player, use global scope so YT api can talk
window.player;
window.onYouTubeIframeAPIReady = function() {
player = new YT.Player('tubular-player', {
width: options.width,
height: Math.ceil(options.width / options.ratio),
videoId: options.videoId,
playerVars: {
controls: 0,
showinfo: 0,
modestbranding: 1,
rel: 0,
wmode: 'transparent'
},
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
window.onPlayerReady = function(e) {
resize();
if (options.mute) e.target.mute();
e.target.seekTo(options.start);
e.target.playVideo();
}
window.onPlayerStateChange = function(state) {
if (state.data === 0 && options.repeat) { // video ended and repeat option is set true
player.seekTo(options.start); // restart
}
}
// resize handler updates width, height and offset of player after resize/init
var resize = function() {
var width = $(window).width(),
pWidth, // player width, to be defined
height = $(window).height(),
pHeight, // player height, tbd
$tubularPlayer = $('#tubular-player');
// when screen aspect ratio differs from video, video must center and underlay one dimension
if (width / options.ratio < height) { // if new video height < window height (gap underneath)
pWidth = Math.ceil(height * options.ratio); // get new player width
$tubularPlayer.width(pWidth).height(height).css({left: (width - pWidth) / 2, top: 0}); // player width is greater, offset left; reset top
} else { // new video width < window width (gap to right)
pHeight = Math.ceil(width / options.ratio); // get new player height
$tubularPlayer.width(width).height(pHeight).css({left: 0, top: (height - pHeight) / 2}); // player height is greater, offset top; reset left
}
}
// events
$(window).on('resize.tubular', function() {
resize();
})
$('body').on('click','.' + options.playButtonClass, function(e) { // play button
e.preventDefault();
player.playVideo();
}).on('click', '.' + options.pauseButtonClass, function(e) { // pause button
e.preventDefault();
player.pauseVideo();
}).on('click', '.' + options.muteButtonClass, function(e) { // mute button
e.preventDefault();
(player.isMuted()) ? player.unMute() : player.mute();
}).on('click', '.' + options.volumeDownClass, function(e) { // volume down button
e.preventDefault();
var currentVolume = player.getVolume();
if (currentVolume < options.increaseVolumeBy) currentVolume = options.increaseVolumeBy;
player.setVolume(currentVolume - options.increaseVolumeBy);
}).on('click', '.' + options.volumeUpClass, function(e) { // volume up button
e.preventDefault();
if (player.isMuted()) player.unMute(); // if mute is on, unmute
var currentVolume = player.getVolume();
if (currentVolume > 100 - options.increaseVolumeBy) currentVolume = 100 - options.increaseVolumeBy;
player.setVolume(currentVolume + options.increaseVolumeBy);
});
if (!document.getElementById("ytjs") == false) {
window.onYouTubeIframeAPIReady();
}
}
// load yt iframe js api
// create plugin
window._tubular = window._tubular || tubular;
})(jQuery, window);
window._tubular(jQuery("body"), {videoId: params[0], start: params[1], repeat: (params[2] == "loop"), mute: (params[3] !== "sound")});
}
}
macros["stopvideo"] = {
handler: function(place, macroName, params, parser) {
jQuery("#tubular-container").remove();
jQuery("#tubular-shield").remove();
}
}
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