// ==UserScript==
// @name         videoControls
// @version      0.1
// @description  适用于资源网助手
// @author       黄盐
// @grant        none
// ==/UserScript==
function addStyle () {
var sty=document.createElement("style");
sty.innerText='#tip{ position: absolute; z-index: 999999;padding: 10px 15px 10px 20px; border-radius: 10px; background: white; font-size:30px; color:black;top: 50%;left: 50%; transform: translate(-50%,-50%); transition: all 500ms ease;  -webkit-font-smoothing: subpixel-antialiased; font-family: "微软雅黑"; -webkit-user-select: none;}';
document.head.appendChild(sty);
};
function showTip (txt) {
var ele=document.createElement("div");
ele.id="tip";
ele.innerText=txt;
document.getElementById('TM_f').appendChild(ele);
var a=setTimeout(function(){document.getElementById('TM_f').removeChild(document.getElementById('tip'));},1000);
}
function keyUp(e) {
var v=document.getElementsByTagName('video')[0];
var currKey=0,e=e||event;
currKey=e.keyCode||e.which||e.charCode;
var keyName = String.fromCharCode(currKey);
//alert("按键码: " + currKey + " 字符: " + keyName);
switch( currKey ) {
case 32:		//空格 暂停或者播放
if(v.paused) {
v.play();
showTip("▋▋");
}else{
v.pause();
showTip(" ▶ ");
}
break;
case 39:	//右箭头→
if(e.ctrlKey){
v.currentTime += 30;
showTip('➕ 30s');
}else{
v.currentTime += 5;
showTip('➕ 5s');
}
break;
case 37:	//左箭头 ←
if(e.ctrlKey){
v.currentTime -= 30;
showTip('➖ 30s');
}else{
v.currentTime -= 5;
showTip('➖ 5s');
}
break;
case 38:	//上箭头↑
v.volume += 0.05;
//if(v.volume>1){ v.volume=1}
showTip('? '  +Math.ceil(v.volume/0.01)+'%');
break;
case 40:	//下箭头↓
v.volume -= 0.05;
//if(v.volume<0){ v.volume=0}
showTip('? '+Math.ceil(v.volume/0.01)+'%');
break;
//按键m：静音 | 取消静音
case 77:
if(v.muted) {
v.muted=false;
showTip('?');
} else {
v.muted=true;
showTip('?');
}
break;
//按键x：减速播放 -0.1
case 88:
if (v.playbackRate > 0) {
v.playbackRate -= 0.1;
v.playbackRate = v.playbackRate.toFixed(1);
showTip(v.playbackRate+"?");
}
break;
//按键c：减速播放 +0.1
case 67:
if (v.playbackRate < 16) {
v.playbackRate += 0.1;
v.playbackRate = v.playbackRate.toFixed(1);
showTip(v.playbackRate+"?");
}
break;
//按键z ：恢复正常速度
case 90:
v.playbackRate = 1;
showTip(' 1 ?');
break;
//按键S：画面旋转 90 度
case 83:
if(isNaN(v.rotate))  v.rotate=0 ;
v.rotate += 90;
if (v.rotate % 360 === 0) v.rotate = 0;
v.style.transform = "rotate(" + v.rotate + "deg)";
showTip('➦'+v.rotate+'°');
break;
//按键回车，进入全屏或者退出全屏
case 13:
if(v.offsetWidth!=screen.width){
if(v.requestFullscreen) {  //w3c
v.requestFullscreen();
} else if(v.mozRequestFullScreen) {  //firefox
v.mozRequestFullScreen();
} else if(v.webkitRequestFullscreen) {  //chrome | safari
v.webkitRequestFullscreen();
} else if(v.msRequestFullscreen) {  //ie11
v.msRequestFullscreen();
}
} else {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitCancelFullScreen) {
document.webkitCancelFullScreen();
}else if (document.msExitFullscreen) {
document.msExitFullscreen();
}
}
break;
default:
break;
}
}
document.onkeyup = keyUp;
addStyle();