Yandex视频横屏插件

移动端Yandex浏览器看视频全屏时强制为横屏观看(安卓已经过测试运行，ios并未测试)

Från och med 2018-12-21. Se den senaste versionen.

// ==UserScript==
// @name           Yandex视频横屏插件
// @name:en        Yandex Video Player Horizontal Screen Plug-in
// @description    移动端Yandex浏览器看视频全屏时强制为横屏观看(安卓已经过测试运行，ios并未测试)
// @description:en Yandex browser is set to play horizontally when viewing full-screen video. This is for Android, and IOS is not tested.
// @version        1.0.0
// @author         Xavier
// @namespace      https://greasyfork.org/zh-CN/users/128493
// @match          *://*/*
// @grant          none
// @run-at         document-end
// ==/UserScript==
(function() {
    'use strict';
    var oriHway="landscape-primary";
    var oriHtemp="",oriHgamma=0,oriHbeta=0;

    function orientationHandler(event) {
        oriHgamma=Math.round(event.gamma);
        oriHbeta=Math.abs(Math.round(event.beta));
        if((oriHbeta<45 && Math.abs(oriHgamma)>25) || (oriHbeta>135 && oriHgamma>25)){
            oriHtemp=((oriHgamma>25 && oriHbeta<45) || (oriHgamma<-25 && oriHbeta>135)) ? "landscape-secondary" : "landscape-primary";
            if(oriHway!=oriHtemp){
                oriHway=oriHtemp;
                screen.orientation.lock(oriHway);
             }
         }
    }

    document.addEventListener('webkitfullscreenchange', function(){
        try{
            if(document.webkitFullscreenElement){
                screen.orientation.lock(oriHway);
                window.addEventListener("deviceorientation", orientationHandler, false);
            }else{
                window.removeEventListener("deviceorientation", orientationHandler, false);
            }
        }
        catch (e) {
            alert(e.message);
        }
    },false);
})();