Set Youtube & Overcast & Youku PlaybackRate to 1.75 by default
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// ==UserScript==
// @name Faster Media
// @namespace http://tampermonkey.net/
// @version 0.3.0-beta.7
// @description Set Youtube & Overcast & Youku PlaybackRate to 1.75 by default
// @author Decradish
// @match *www.youtube.com/watch?v=*
// @match *overcast.fm/+*
// @grant none
// ==/UserScript==
(function() {
'use strict';
// 核心方法
var coreFn = () => {
var iPlaybackRate = 1.75, //rate
tmVideo = document.getElementsByTagName("video")[0],
tmMedia = false,
OcRange = document.getElementById('speedcontrol') //Overcast
if(!!tmVideo){
tmMedia = tmVideo;
var youTubePlayBtn = document.getElementsByClassName('ytp-play-button')
if(youTubePlayBtn.length > 0){
document.getElementsByClassName('ytp-play-button')[0].focus()
}
}
if(!!OcRange){
OcRange.stepUp(5)
document.getElementById('speedlabel0').style.color = '#000'
document.getElementById('speedlabel1500').style.color = '#fff'
}
if(!tmMedia){
return false;
}
tmMedia.playbackRate = iPlaybackRate;
tmMedia.onplay = function(){
tmMedia.playbackRate = iPlaybackRate;
};
tmMedia.oncanplay = function(){
tmMedia.playbackRate = iPlaybackRate;
};
}
// 观察器的执行函数
var obsCb = (mutationsList, mutationObserver) => {
// 遍历出所有的MutationRecord对象
mutationsList.forEach(function (mutation) {
// 找一下目标元素
const hasTargetElem = mutation.addedNodes.some((item =>
item.tagName === 'VIDEO' ||
item.id === 'speedcontrol'
));
if(hasTargetElem){
// 已产生目标元素，停止观察
observer.disconnect()
// 执行核心方法
coreFn();
}
});
}
// 设置一个观察器
var observer = new MutationObserver(obsCb);
// 观察目标元素是否出现
observer.observe(document.body, {
childList: true,
subtree: true
});
})();