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触摸屏视频播放手势支持，上下滑调整音量，左右滑调整进度
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// ==UserScript==
// @name 触摸屏视频优化
// @namespace https://github.com/HeroChan0330
// @version 2.13
// @description 触摸屏视频播放手势支持，上下滑调整音量，左右滑调整进度
// @author HeroChanSysu
// @match https://*/*
// @match http://*/*
// @match ftp://*/*
// @grant GM_addStyle
// ==/UserScript==
var TouchGesture={forbidScroll:false};
var TouchGestureWhiteList={
"www.bilibili.com":{
"bilibili-player-video":"bilibili-player-area",
forbidScrollList:["bilibili-player-dm-tip-wrap"]
},
"m.bilibili.com":{
forbidScrollList:["player-mobile-display"]
},
"weibo.com":{
forbidScrollList:["wbpv-tech","wbpv-open-layer-button"]
},
"www.youtube.com":{
"html5-video-container":"ytd-player",
forbidScrollList:["video-stream"]
},
"m.youtube.com":{
"html5-video-container":"player-container",
forbidScrollList:["animation-enabled","player-controls-background"]
},
"v.youku.com":{
"youku-film-player":"youku-film-player",
"video-layer":"youku-fullscreen",
forbidScrollList:["yk-trigger-layer","kui-dashboard-display-panel"]
},
"www.facebook.com":{
forbidScrollList:["i09qtzwb"]
}
};
var CustomizedVideoTAG = {
"www.bilibili.com":["bwp-video"]
};
var TouchGestureBlackList=[
"v.qq.com"
];
var forbidScrollList=[];
TouchGesture.VideoGesture=function(videoElement){
this.touchDownPt=null; //触摸按下时得位置
this.touchStartPt=null; //顺着一定方向滑动时并触发功能，开始计算的点
this.sweepDir=0; //0:no sweep 1:up 2:down 3:left 4:right
this.startTouchVideoTime;
this.startTouchVideoVolume;
this.touchResult=0; //触摸结果暂存
this.startTouchFingers=0; //在触发功能前触摸点数
this.originalPlayrate=1; //视频原本的播放速率
//this.bodyPosition="";
this.videoBrightness=1;
this.startTouchBrightness=1;
this.longTouch=false;
this._videoSrcStore=null;
this._videoElement=videoElement;//对象video标签
this._videoElementAbLeft=0; //video标签相对页面的left
this._elementFrame=null;//文字显示的框架
this._toastText=null; //文字显示
this._containElement=null; //_elementFrame的父级
this._eventListenElement=null;//监听触摸动作的元素
this._fullScreenNow=tg_IsFullscreen();
// console.log("_fullScreenNow:"+this._fullScreenNow);
// console.log(TouchGestureWhiteList);
// console.log(TouchGestureWhiteList["www.bilibili.com"]!=null);
this.createDom();
this.findBestRoot();
this.applyDom();
// video内地址更改时，重新设置页面(针对bilibili连续播放)
var self = this;
this._videoElement.addEventListener('play', function () { //播放开始执行的函数
if(self._videoSrcStore == null){
// alert("first play");
self._videoSrcStore=self._videoElement.src;
}else if(self._videoElement.src!=self._videoSrcStore){
// alert("replay");
self.restoreDom();
self.findBestRoot();
self.applyDom();
}
});
};
// 产生显示元素
TouchGesture.VideoGesture.prototype.createDom=function(parentElement){
var toastDiv=document.createElement("div");
var toastText=document.createElement("span");
toastDiv.appendChild(toastText);
toastDiv.classList.add("TouchGesture_Toast");
toastText.classList.add("TouchGesture_ToastText");
toastDiv.style.display="none";
this._elementFrame=toastDiv;
this._toastText=toastText;
this._elementFrame.classList.add("TouchGestureForbidScroll");
this._toastText.classList.add("TouchGestureForbidScroll");
this._touchStartHandler=this.onTouchStart.bind(this);
this._touchEndHandler=this.onTouchEnd.bind(this);
this._touchMoveHandler=this.onTouchMove.bind(this);
this._windowResizeHandeler=this.fullScreenDetect.bind(this);
window.addEventListener("resize",this._windowResizeHandeler,"false");
};
// 找到显示元素最佳的parent及监听元素
TouchGesture.VideoGesture.prototype.findBestRoot=function(){
var self=this;
var targetElement=this._videoElement;
var hostDomain=window.location.host;
var defaultSetting=TouchGestureWhiteList[hostDomain];
var defaultSettingSuccess=false;
if(defaultSetting!=null){
// console.log("defaultSetting!=null");
var parentElement=this._videoElement.parentElement;
// console.log(parentElement);
var inList=false;
var targetFrameClass="";
//vertify whether the video parentelement`s classname is in the whitelist
parentElement.classList.forEach(element => {
if(defaultSetting[element]!=null){
targetFrameClass=defaultSetting[element];
inList=true;
// console.log(targetFrameClass+" INLIST");
// break;
return;
}
});
if(inList==true){
var finded=false;
var temp=parentElement;
while(finded==false){
if(temp.classList.contains(targetFrameClass)){
finded=true;
defaultSettingSuccess=true;
self._containElement=temp;
self._eventListenElement=temp;
break;
// console.log("FIND");
}
temp=temp.parentElement;
if(temp.tagName.toLowerCase()=="body"){
break;
}
}
}
}
if(defaultSettingSuccess==false){
if(this._fullScreenNow==false){
targetElement=targetElement.parentElement;
var topest=false;
while(!topest){
// targetElement.classList.add("TouchGestureForbidScroll");
var temp=targetElement.parentElement;
var size1=targetElement.offsetWidth*targetElement.offsetHeight;
var size2=temp.offsetWidth*temp.offsetHeight;
if(temp.offsetWidth>=targetElement.offsetWidth&&temp.offsetHeight>=targetElement.offsetHeight&&size2/size1<=1.2){
targetElement=temp;
}else{
topest=true;
}
if(temp.tagName.toLowerCase()=="body"){
break;
}
}
self._containElement=targetElement;
self._eventListenElement=targetElement;
}else{
// alert("FULLSCREEN!");
if(document.fullscreenElement!=null){
self._containElement=document.fullscreenElement;
self._eventListenElement=document.fullscreenElement;
}
}
}
};
// TouchGesture.findFullScreenRoot=function(){
// };
TouchGesture.VideoGesture.prototype.simMouseMoveDock=function(){
if(this.touchDownPt==null)
return;
var self=this;
var event = new MouseEvent('mousemove', {
view: document.defaultView,
bubbles: true,
cancelable: false,
clientX:self._videoElement.clientWidth/2+Math.floor(Math.random()*20),
clientY:self._videoElement.clientHeight*1.5
});
self._videoElement.dispatchEvent(event);
setTimeout(() => {
self.simMouseMoveDock();
}, 1000);
};
TouchGesture.VideoGesture.prototype.simMouseMoveCenter=function(){
var self=this;
var event = new MouseEvent('mousemove', {
view: document.defaultView,
bubbles: true,
cancelable: false,
clientX:self._videoElement.clientWidth/2,
clientY:self._videoElement.clientHeight/2
});
self._videoElement.dispatchEvent(event);
};
// 触摸开始
TouchGesture.VideoGesture.prototype.onTouchStart=function(e){
if(this._videoElement.src.length<=2){
// 视频的src长度太低，视频基本无效。
return;
}
if(this.sweepDir!=0){
// 当滑动一定距离后，不再响应touchdown
if(e.touches.length!=this.startTouchFingers){
// 触摸点数变化，取消当前的触摸结果
this.cancelTouch();
}
return;
}
// this.forbidScroll();
// console.log(e);
this.setElementLayout();
// console.log(e);
this.startTouchFingers=e.touches.length;
if(this.startTouchFingers>0){
this.originalPlayrate=this._videoElement.playbackRate;
if(this.startTouchFingers==2){
var dis=Math.sqrt((e.touches[0].clientX-e.touches[1].clientX)*(e.touches[0].clientX-e.touches[1].clientX)+(e.touches[0].clientY-e.touches[1].clientY)*(e.touches[0].clientY-e.touches[1].clientY));
var longside = (document.body.clientWidth>document.body.clientHeight)?document.body.clientWidth:document.body.clientHeight;
if(dis>longside/4){
// 两个触摸到相隔太远，取消触摸结果
this.touchDownPt=null;
this.startTouchFingers=0;
this.cancelTouch();
return;
}else{
// 记录原本的播放速率，并且2倍速播放
this._videoElement.playbackRate=4.0;
this.setToast("4倍速播放");
}
}
else if(this.startTouchFingers==1){
var self = this;
setTimeout(() => {
if(self.touchDownPt != null && self.touchResult==0 && self.startTouchFingers==1){
var str = seconds2TimeStr(Math.floor(self._videoElement.currentTime)) + " / " + seconds2TimeStr(Math.floor(self._videoElement.duration));
self.setToast(str);
self.simMouseMoveDock();
self.longTouch=true;
}
}, 500);
}
this.touchDownPt=e.touches[0];
var ableft=this._videoElement.offsetLeft;
var temp=this._videoElement.offsetParent;
while(temp!=null){
ableft+=temp.offsetLeft;
temp=temp.offsetParent;
}
this._videoElementAbLeft=ableft;
// console.log("ableft:"+ableft);
}else{
this.cancelTouch();
}
};
TouchGesture.VideoGesture.prototype.onTouchMove=function(e){
// console.log(e);
var videoElement=this._videoElement;
if(this.touchDownPt==null)
return;
// if(e.touches.length!=this.startTouchFingers){
// this.cancelTouch();
// return;
// }
if(this.startTouchFingers==1){
// 单个手指触摸
var touchPt=e.touches[0];
delX=touchPt.clientX-this.touchDownPt.clientX;
delY=touchPt.clientY-this.touchDownPt.clientY;
if(this.sweepDir==0){
var radius=Math.sqrt(delX*delX+delY*delY);
var w=videoElement.offsetWidth,h=videoElement.offsetHeight;
var judge=Math.sqrt(w*w+h*h)/30;
if(radius>judge){
if(Math.abs(delX)>Math.abs(delY)){
if(delX>0)
this.sweepDir=4;
else
this.sweepDir=3;
}else{
if(delY>0)
this.sweepDir=2;
else
this.sweepDir=1;
}
// console.log("get sweep dir:"+this.sweepDir);
this.startTouchVideoTime=Math.floor(videoElement.currentTime);
this.startTouchVideoVolume=videoElement.volume;
this.startTouchBrightness=this.videoBrightness;
this.touchStartPt=touchPt;
}
}else if(this.sweepDir==3||this.sweepDir==4){
delX=touchPt.clientX-this.touchStartPt.clientX;
var delXRatio=delX/videoElement.offsetWidth;
if(Math.abs(delXRatio)<0.5){
this.touchResult=Math.floor(delXRatio*180);
}else{
if(delXRatio>0)
this.touchResult=Math.floor((Math.pow(100,delXRatio-0.5)-1)*180+90);
else
this.touchResult=Math.floor(-(Math.pow(100,-delXRatio-0.5)-1)*180-90);
//this.touchResult=Math.floor(Math.pow(2*delX/videoElement.offsetWidth,3)*120);
}
if(this.touchResult+this.startTouchVideoTime<0)
this.touchResult=-this.startTouchVideoTime;
if(this.touchResult+this.startTouchVideoTime>videoElement.duration){
this.touchResult=Math.floor(videoElement.duration-this.startTouchVideoTime)-1;
}
if( (this.sweepDir==3&&this.touchResult>0)||(this.sweepDir==4&&this.touchResult<0)){
this.touchResult=0;
}
var offsetValStr;
if(Math.abs(this.touchResult)<300)
offsetValStr=this.touchResult+"s";
else
offsetValStr=Math.floor(this.touchResult/6)/10+"min";
if(this.touchResult>0)
this.setToast(seconds2TimeStr(this.startTouchVideoTime)+" +"+offsetValStr);
else
this.setToast(seconds2TimeStr(this.startTouchVideoTime)+" "+offsetValStr);
// console.log(videoElement);
}else if(this.sweepDir==1||this.sweepDir==2){
if(this.touchStartPt.clientX-this._videoElementAbLeft<this._videoElement.clientWidth/2){
delY=touchPt.clientY-this.touchStartPt.clientY;
var plus=-delY/videoElement.offsetHeight*4;
this.touchResult=this.startTouchBrightness+plus;
if(this.touchResult<0) this.touchResult=0;
else if(this.touchResult>1) this.touchResult=1;
this.videoBrightness=this.touchResult;
var realBrightness=Math.sqrt(this.touchResult)*0.85+0.15;
videoElement.style.filter="brightness("+realBrightness+")";
this.setToast("亮度:"+Math.floor(this.touchResult*100)+"%");
}else{
delY=touchPt.clientY-this.touchStartPt.clientY;
var plus=-delY/videoElement.offsetHeight*4;
this.touchResult=this.startTouchVideoVolume+plus;
if(this.touchResult<0) this.touchResult=0;
else if(this.touchResult>1) this.touchResult=1;
videoElement.volume =this.touchResult;
// if(videoElement.volume!=0)
// videoElement.muted=false;
this.setToast("音量:"+Math.floor(this.touchResult*100)+"%");
}
}
//console.log("delx:"+delX);
}else if(this.startTouchFingers==2){
// 2个手指触摸
var touchPt=e.touches[0];
delX=touchPt.clientX-this.touchDownPt.clientX;
delY=touchPt.clientY-this.touchDownPt.clientY;
if(this.sweepDir==0){
var radius=Math.sqrt(delX*delX+delY*delY);
var w=videoElement.offsetWidth,h=videoElement.offsetHeight;
var judge=Math.sqrt(w*w+h*h)/30;
if(radius>judge){
if(Math.abs(delX)>Math.abs(delY)){
this._videoElement.playbackRate=this.originalPlayrate;
if(delX>0)
this.sweepDir=4;
else
this.sweepDir=3;
}else{
if(delY>0)
this.sweepDir=2;
else
this.sweepDir=1;
}
// console.log("get sweep dir:"+this.sweepDir);
this.touchStartPt=touchPt;
}
}else if(this.sweepDir==3||this.sweepDir==4){
delX=touchPt.clientX-this.touchStartPt.clientX;
this.touchResult=this.originalPlayrate+Math.floor((delX/videoElement.offsetWidth)*10)*0.25;
if(this.touchResult>4) this.touchResult=4;
if(this.touchResult<0.25) this.touchResult=0.25;
this.setToast("倍速X "+this.touchResult);
}
}
};
TouchGesture.VideoGesture.prototype.onTouchEnd=function(e){
var videoElement=this._videoElement;
this.touchDownPt=null;
if(this.touchResult!=0){
if(this.startTouchFingers==1){
if(this.sweepDir==3||this.sweepDir==4){
var res=this.startTouchVideoTime+this.touchResult;
// console.log(videoElement.currentTime);
// console.log("touch end:"+res);
videoElement.currentTime=res;
// this.hideToast();
// videoElement.play();
}else if(this.sweepDir==1||this.sweepDir==2){
// this.hideToast();
// videoElement.play();
}
}else if(this.startTouchFingers==2){
if(this.sweepDir==3||this.sweepDir==4){
this._videoElement.playbackRate=this.touchResult;
this.originalPlayrate=this.touchResult;
}
}
}else{
}
this.sweepDir=0;
this.touchResult=0;
this._videoElement.playbackRate=this.originalPlayrate;
this.hideToast();
if(this.longTouch==true)
this.simMouseMoveCenter();
this.longTouch=false;
// this.cancelTouch();
// this.permitcroll();
};
// 启动监听
TouchGesture.VideoGesture.prototype.applyDom=function(videoElement){
this._containElement.appendChild(this._elementFrame);
var temp=this._videoElement;
while(temp!=this._eventListenElement){
temp.classList.add("TouchGestureForbidScroll");
temp=temp.parentElement;
}
this._eventListenElement.classList.add("TouchGestureForbidScroll");
this._eventListenElement.addEventListener("touchstart",this._touchStartHandler,false);
this._eventListenElement.addEventListener("touchend",this._touchEndHandler,false);
this._eventListenElement.addEventListener("touchmove",this._touchMoveHandler,false);
};
// Resize时恢复元素原样，取消事件监听
TouchGesture.VideoGesture.prototype.restoreDom=function(){
this._containElement.appendChild(this._elementFrame);
var temp=this._videoElement;
while(temp!=this._eventListenElement){
if(temp.classList!=null)
temp.classList.remove("TouchGestureForbidScroll");
temp=temp.parentElement;
if(temp == null)
break;
}
if(this._eventListenElement==null)
return;
this._eventListenElement.classList.remove("TouchGestureForbidScroll");
this._eventListenElement.removeEventListener("touchstart",this._touchStartHandler);
this._eventListenElement.removeEventListener("touchend",this._touchEndHandler);
this._eventListenElement.removeEventListener("touchmove",this._touchMoveHandler);
};
// 窗口resize时检测是否全屏并且适配
TouchGesture.VideoGesture.prototype.fullScreenDetect=function(){
// alert("resize");
var fullScreenState=tg_IsFullscreen();
if(fullScreenState!=this._fullScreenNow){
this._fullScreenNow=fullScreenState;
this.restoreDom();
this.findBestRoot();
this.applyDom();
if(fullScreenState == true){
// console.log("fullscreen");
this._elementFrame.style.position = "fixed";
this.simMouseMoveCenter();
//模拟鼠标移到中间，使得自动隐藏视频底部
}
else{
this._elementFrame.style.position = "absolute";
}
}
};
//自动调节DIV元素位置
TouchGesture.VideoGesture.prototype.setElementLayout=function(){
var videoTarget=this._containElement;
var vw=videoTarget.offsetWidth,vh=videoTarget.offsetHeight;
var w=vw/5;
//var h=vh/8;
var h=w/3;
var x=(vw-w)/2+videoTarget.offsetLeft;
var y=(vh-h)/2+videoTarget.offsetTop;
// console.log("w:"+w," h:"+h+" x:"+x+" y:"+y);
this._elementFrame.style.width=w+"px";
this._elementFrame.style.height=h+"px";
this._elementFrame.style.left=x+"px";
this._elementFrame.style.top=y+"px";
// this._element.style.display="block";
var fontsize=h/3;
this._toastText.style.fontSize=fontsize+"px";
this._toastText.style.marginTop=(h-fontsize)/2+"px";
this._elementFrame.style.display="none";
this._elementFrame.style.borderRadius = w/10 +"px";
};
//显示Toast
TouchGesture.VideoGesture.prototype.setToast=function(str){
// this._element.style.opacity=0.75;
this._elementFrame.style.display="block";
this._elementFrame.classList.remove("fadeout");
this._toastText.innerHTML=str;
}
//在Touchend之前取消手势
TouchGesture.VideoGesture.prototype.cancelTouch=function(){
this.sweepDir=0;
this._videoElement.playbackRate=this.originalPlayrate;
this.touchDownPt=null;
this.hideToast();
}
// 隐藏toast
TouchGesture.VideoGesture.prototype.hideToast=function(){
var element=this._elementFrame;
setTimeout(function(){
element.classList.add("fadeout");
},500);
// setTimeout(function(){
// element.style.opacity=0;
// element.classList.remove("fadeout");
// },1500);
}
// 检测<video>并插入元素
TouchGesture.VideoGesture.insertDom=function(dom){
var videoTagsNative = dom.getElementsByTagName('video');
// console.log(dom);
Array.prototype.forEach.call(videoTagsNative, function(videoTag) {
if (!videoTag.getAttribute('TouchGesture_Video')) {
videoTag.setAttribute('TouchGesture_Video', true);
new TouchGesture.VideoGesture(videoTag);
// console.log("insert node");
}
});
var hostDomain=window.location.host;
if(CustomizedVideoTAG[hostDomain] == null)
return;
CustomizedVideoTAG[hostDomain].forEach(function(videoTagName){
var videoTags = dom.getElementsByTagName(videoTagName);
// console.log(dom);
Array.prototype.forEach.call(videoTags, function(videoTag) {
if (!videoTag.getAttribute('TouchGesture_Video')) {
videoTag.setAttribute('TouchGesture_Video', true);
new TouchGesture.VideoGesture(videoTag);
// console.log("insert node");
}
});
});
};
TouchGesture.VideoGesture.insertAll=function(){
// var self=this;
TouchGesture.VideoGesture.insertDom(document);
};
// TouchGesture.VideoGesture.prototype.forbidScroll=function(){
// // var bodies=document.getElementsByTagName("body");
// // Array.prototype.forEach.call(bodies, function(body) {
// // body.style.position="fixed";
// // });
// TouchGesture.forbidScroll=true;
// }
// TouchGesture.VideoGesture.prototype.permitcroll=function(){
// // var bodies=document.getElementsByTagName("body");
// // Array.prototype.forEach.call(bodies, function(body) {
// // body.style.position="relative";
// // });
// TouchGesture.forbidScroll=false;
// }
function seconds2TimeStr(secs){
var hour=parseInt(secs/3600);
var min=parseInt(secs/60)-60*hour;
var sec=secs%60;
var ret="";
if(hour>0){
ret+=hour+":";
}
ret+=(min < 10? '0' + min : min) + ':' + (sec < 10? '0' + sec : sec);
return ret;
}
function initForbidScrollList(){
var hostDomain=window.location.host;
var defaultSetting=TouchGestureWhiteList[hostDomain];
if(defaultSetting!=null){
if(defaultSetting.forbidScrollList!=null)
forbidScrollList=defaultSetting.forbidScrollList;
// console.log(forbidScrollList);
}
}
function whetherInBlackList(){
var hostDomain=window.location.host;
if(TouchGestureBlackList.indexOf(hostDomain)>=0){
return true;
}
return false;
}
function tg_IsFullscreen(){
return document.fullscreenElement!=null ||
document.msFullscreenElement!=null ||
document.mozFullScreenElement!=null ||
document.webkitFullscreenElement!=null ||
document.fullscreen == true || false;
}
(function() {
'use strict';
GM_addStyle('div.TouchGesture_Toast{ width: 200px; height: 100px; opacity: 0.75; position: absolute; z-index: 2147483648; top: 100px; left: 200px; background-color: black; pointer-events:none;} ');
GM_addStyle('span.TouchGesture_ToastText{ position: absolute; left: 0; right: 0; text-align: center; color: white; pointer-events:none;}');
GM_addStyle('div.TouchGesture_Toast.fadeout{ -webkit-transition: all 1.5s; -moz-transition: all 1.5s; -ms-transition: all 1.5s; -o-transition: all 1.5s; transition: all 1.5s; opacity: 0;}');
if(whetherInBlackList()){
return;
}
initForbidScrollList();
document.addEventListener('touchstart',function(e){
// console.log(e);
// if(e.srcElement.tagName!="VIDEO"
// &&forbidScrollList.indexOf(e.srcElement.classList[0])<0
// &&!e.srcElement.classList.contains("TouchGestureForbidScroll")){
// TouchGesture.forbidScroll=false;
// }else{
// document.addEventListener('touchmove',preventDefault,{passive:false});
// }
if(forbidScrollList.indexOf(e.srcElement.classList[0])>=0){
document.addEventListener('touchmove',preventDefault,{passive:false});
}else{
var noVideo=true;
for(var i=0;i<e.path.length;i++){
var element=e.path[i];
// console.log(element);
if(element.tagName=="VIDEO"||(element.classList&&element.classList.contains["TouchGestureForbidScroll"])){
// TouchGesture.forbidScroll=true;
noVideo=false;
break;
}
}
if(!noVideo){
document.addEventListener('touchmove',preventDefault,{passive:false});
}else if(tg_IsFullscreen()){
if(e.touches[0].clientX>document.body.clientWidth/8&&e.touches[0].clientX<document.body.clientWidth){
document.addEventListener('touchmove',preventDefault,{passive:false});
}else{
// TouchGesture.forbidScroll=false;
}
}
else{
// TouchGesture.forbidScroll=false;
}
}
});
function preventDefault(e){
e.preventDefault();
return false;
};
document.addEventListener('touchend',function(e){
document.removeEventListener('touchmove',preventDefault);
});
// document.addEventListener('touchmove',function(e){
// console.log(e.srcElement.classList[0]);
// });
TouchGesture.VideoGesture.insertAll();
setInterval(TouchGesture.VideoGesture.insertAll, 1500);
})();