bilibili HTML5播放器

伪造user agent信息以启用bilibili的html5播放器
当前为 2016-08-20 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name        bilibili HTML5播放器
// @author      nanavao
// @namespace   nana_vao_script
// @description 伪造user agent信息以启用bilibili的html5播放器
// @version     1.11
// @include     http://www.bilibili.com/video/av*
// @include     http://bangumi.bilibili.com/anime/v/*
// @run-at      document-start
// @grant       none
// ==/UserScript==
'use strict';
(function () {
    if (location.hostname == 'bangumi.bilibili.com') {
        document.addEventListener('DOMContentLoaded', function () {
            window.stop();
            location.href = document.querySelector('.v-av-link').href;
        });
    } else {
        Object.defineProperty(navigator, 'userAgent', {
            value: 'Mozilla/5.0 (X11; Linux x86_64; rv:48.0) Gecko/20100101 Firefox/48.0'
        });

        window.addEventListener('load', function () {
            $('.bilibili-player-video-btn-widescreen').click();
            let intervalId  = setInterval(function(){
                if($('.bilibili-player-video-wrap video').length){
                    setContextMenuHandler();
                    clearInterval(intervalId);
                }
            },500);
        });
    }

    function setContextMenuHandler(){
        let contextMenuEvent = $._data( document.querySelector('.bilibili-player-video-wrap'), "events" ).contextmenu[0];
        let oldHandler = contextMenuEvent.handler;

        let isElementClicked = function(ele, x, y){
            let rect = ele.getBoundingClientRect();
            return ((x > rect.left) && (x < rect.right) && (y > rect.top) && (y < rect.bottom));
        };

        let anyElementClicked = function(arr,x,y){
            for(let i = 0;i < arr.length; i++){
                if(isElementClicked(arr[i],x,y)){
                    return true;
                }
            }
            return false;
        };

        let newHandler = function(e){  
            let eleArr = document.querySelectorAll('.bilibili-danmaku');
            if(anyElementClicked(eleArr,e.clientX,e.clientY)){
                oldHandler(e);
            }
        };

        contextMenuEvent.handler = newHandler;
    }
}) ();
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