.quan_vcd_list-item{
    width:100%;
    height:100vh;
    overflow:hidden;
    position:relative;
    -webkit-overflow-scrolling:touch;
}
.quan_vcd_list.trans{
    transition:transform .3s ease-out 0s,-webkit-transform .3s ease-out 0s;
}
video .video_hide{
    left:-100%;
}

function Touch() {
  this.init();
}
Touch.fn = Touch.prototype;
Touch.fn.init = function(params) {
  this.lastY = this.translateY; //记录当前位移
  this.startY = 0;
  this.moveY = 0;
  this.lock = 0; //如果在回调或上升阶段不允许滑动.
  this.bodyHeight = window.innerHeight;
  this.resetLimitY();
  self.isIOS = /ip(?:hone|ad|od)/.test(navigator.userAgent.toLowerCase());
  ["touchstart", "touchmove", "touchend"].forEach(str => {
    document.addEventListener(this, this[str].bind(this));
  });
};

var a = Math.abs(this.moveY) / (Date.now() - this.start) >= 0.5;

Touch.fn.resetLimitY = function () {
    this.limitY = this.bodyHeight/3;//位移多少才下滑
}
Touch.fn.touchend = function (e) {
    if(this.lock||this.moveY==0||!this.start) return;
    this.detectAcc(1);
}
Touch.fn.movend = function () {
    const self = this;
    this.lock = 1;
    /***
    * 最后上下位移小于最小值则还原为上一次位移，
    * 否则，那么就需要上移或下移一个body宽度，上移则translate加，下移在减去一个body
    * 这里是计算出了应该位移高度。
    */
    let transformY = Math.abs(self.moveY)<self.limitY?self.lastY:self.lastY+self.bodyHeight*(self.moveY>0?1:-1);

    /***
    * 还需计算最大下滑高度和最大上滑高度
    */
    let listUL = document.querySelector(".quan_vcd_list");
    let listHeight = listUL.getBoundingClientRect().height;

    //如果是最后一个li，则不能下滑，
    let maxBottom = (listHeight - self.bodyHeight)*-1;
    let lastComputeY = transformY>0?0:transformY<maxBottom?maxBottom:transformY;
    //停止滑动之后，自动滚动距离，transition
    listUL.classList.add('trans');
    if(lastComputeY<=0){
        let d = lastComputeY-self.lastY;
        d&&events.trigger("touch_move",d,(-lastComputeY/self.bodyHeight));
    }
    self.start = 0;
    (window.requestAnimationFrame|| window.webkitRequestAnimationFrame)(function () {
        self.move(lastComputeY);
        self.moveY = 0;
        self.lastY = lastComputeY;//记录确定的位置
        if(listHeight + self.lastY<=self.bodyHeight){
            events.trigger("turnPage");
        }
        setTimeout(function () {
            listUL.classList.remove("trans");
            self.lock = 0;
            self.resetLimitY();
        },500);
    });

export default function videoComponent(opt) {
  var config = {
    props: ["feedData", "index"],
    data: function() {
      return {
        play_btn: 0,
        bg_name: "",
        anim_like: [],
        vloading: 0
      };
    },
    mounted:function(){
        this.addEvent();
        this.stall = 0;
        this.loaderror = 0;
    },
    methods: {
      onstalled: function() {
        if (!this.feedData.start) return;
        this.vloading = 1;
        this.play();
        this.stall++;
        if (this.stall == 2) {
          showTip("网络有点慢哦~");
          store.report(27, 1);
        }
      },
      waiting: function() {
        clearInterval(this.timer);
        this.loadTimes = 0;
        this.timer = setInterval(() => {
          this.loadTimes++;
          if (this.loadTimes >= 2) {
            //连续3次未播放，当作是卡住了
            this.aPause();
            this.vloading = 1;
          }
        }, 1800);
      },
      ondurationchange: function() {
        this.compute();
      },
      onloadedmetadata: function() {
        this.compute();
      },
      ontimeupdate: function() {
        this.timeupdate();
      },
      aPause: function() {
        this.audio && this.audio.pause();
      },
      aPlay: function() {
        this.audio && this.audio.play();
      },
      pause: function() {
        this.video.pause();
        this.aPause();
        this.vloading = 0;
        clearInterval(this.timer);
      },
      play: function(isMove) {
        this.videoPlay(isMove);
      },
      checkLoading: function() {
        checkLoading(this);
      },
      onx5videoexitfullscreen: function() {
        this.video.play();
      }
    }
  };
  Vue.component("video-com", util.assign(config, opt));
}

function addEvent() {
    this.$nextTick( ()=> {
        this.video = this.$el.querySelector("video");
        var arry = ['stalled','playing', 'timeupdate', 'abort', 'error','durationchange','loadedmetadata','pause','x5videoexitfullscreen'];
        arry.forEach( (str)=> {
            this.video.addEventListener(str,this['on'+str]);
        });
        if(this.index==0){
            this.loadWX(function (isWx) {
                if(isWx&&isAndroid) return;
                this.play();
            });
        }
    });
    this.handleBGM(this.feedData);
    let self = this;
    events.listen("touch_move", (direct,i)=> {
        handleMove(self,direct,i);
    });
}
function loadWX(cb) {
    if(device.scene=="weixin"){
        if(window.WeixinJSBridge){
            cb(true);
        }else{
            document.addEventListener("WeixinJSBridgeReady", function() {
                cb(true);
            });
        }
    }else{
        cb();
    }
}

function handleMove(self, direct, i) {
  if (i == self.index) {
    handleCurrent(self);
  }
  //direct>0 则是下滑,页面出现上一个视频，则当前位置的下一个视频要暂停，
  //direct<0则是上滑，页面要播放下一个视频了，则当前位置的上一个视频要暂停
  if (self.index == i + (direct > 0 ? 1 : -1)) {
    self.pause();
    if (!self.loadedAll) {
      feed.playurl = ""; //如果是未加载完成，那么就不要加载了。
      feed.start = 0;
      feed.hide = 1;
    }
    if (!self.audioLoaded) {
      feed.bgmurl_p = "";
    }
  }
  if (self.index >= i + 7 || self.index <= i - 7) {
    feed.maxHide = 1; //最大超过16个节点，则隐藏。
    feed.playurl = ""; //最大超过16个节点，则把其他视频干掉。
    feed.start = 0;
    feed.hide = 1;
  } else {
    feed.maxHide = 0;
  }
}
function handleCurrent(self){
    if (!self.feed.playurl) {
      self.feed.playurl = self.feed.videourl;
      if (!self.feed.bgmurl_p && self.feed.bgmurl) {
        self.feed.bgmurl_p = self.feed.bgmurl;
        self.audio.load();
      }
      self.video.load();
    }
    self.$nextTick(()=> {
      store.addPlayNum(feed.shareid);
      if (self.audio && !self.audioLoaded) {
        var int = setInterval(()=> {
          if (self.audioLoaded) {
            clearInterval(int);
            self.play(1);
          }
        }, 100);
      } else {
        self.play(1);
      }
    });
}

function errors(msg) {
    let self = this;
    if(!self.video||!self.feedData.start) return;
    self.loaderror++;
    if(self.loaderror<=2){
        self.play();
        return;
    }
    setPlay(1);
    // report msg 
}