CLiang/活动模板/js/tvSysBtnBind.v2.1.js

try {
    (function(arr) {
        arr.forEach(function(item) {
            if (item.hasOwnProperty('remove')) {
                return
            }
            Object.defineProperty(item, 'remove', {
                configurable: true,
                enumerable: true,
                writable: true,
                value: function remove() {
                    this.parentNode.removeChild(this)
                }
            })
        })
    })([Element.prototype, CharacterData.prototype, DocumentType.prototype]);
    if (!("classList" in document.documentElement)) {
        Object.defineProperty(HTMLElement.prototype, 'classList', {
            get: function() {
                var self = this;

                function update(fn) {
                    return function(value) {
                        var classes = self.className.split(/\s+/g),
                            index = classes.indexOf(value);
                        fn(classes, index, value);
                        self.className = classes.join(" ")
                    }
                }
                return {
                    add: update(function(classes, index, value) {
                        if (!~index) classes.push(value)
                    }),
                    remove: update(function(classes, index) {
                        if (~index) classes.splice(index, 1)
                    }),
                    toggle: update(function(classes, index, value) {
                        if (~index) classes.splice(index, 1);
                        else classes.push(value)
                    }),
                    contains: function(value) {
                        return !!~self.className.split(/\s+/g).indexOf(value)
                    },
                    item: function(i) {
                        return self.className.split(/\s+/g)[i] || null
                    }
                }
            }
        })
    }
    function fireKeyEvent(el, evtType, keyCode) {
        var doc = el.ownerDocument,
            win = doc.defaultView || doc.parentWindow,
            evtObj;
        if (doc.createEvent) {
            if (win.KeyEvent) {
                evtObj = doc.createEvent('KeyEvents');
                evtObj.initKeyEvent(evtType, true, true, win, false, false, false, false, keyCode, 0)
            } else {
                evtObj = doc.createEvent('UIEvents');
                Object.defineProperty(evtObj, 'keyCode', {
                    get: function() {
                        return this.keyCodeVal
                    }
                });
                Object.defineProperty(evtObj, 'which', {
                    get: function() {
                        return this.keyCodeVal
                    }
                });
                evtObj.initUIEvent(evtType, true, true, win, 1);
                evtObj.keyCodeVal = keyCode;
                if (evtObj.keyCode !== keyCode) {}
            }
            el.dispatchEvent(evtObj)
        } else if (doc.createEventObject) {
            evtObj = doc.createEventObject();
            evtObj.keyCode = keyCode;
            el.fireEvent('on' + evtType, evtObj)
        }
    }
} catch (e) {}
function addClass(ele, cls) {
    if (ele.classList) {
        ele.classList.add(cls)
    } else {
        if (!this.hasClass(ele, cls)) ele.className += " " + cls
    }
}
function arrIndexOf(arr, v) {
    for (var i = 0; i < arr.length; i++) {
        if (arr[i] == v) {
            return i
        }
    }
    return -1
}
function removeClass(ele, cls) {
    if (ele.classList) {
        ele.classList.remove(cls)
    } else {
        if (ele.className != '' && hasClass(ele, cls)) {
            var arrClassName = ele.className.split(' ');
            var classIndex = arrIndexOf(arrClassName, cls);
            if (classIndex !== -1) {
                arrClassName.splice(classIndex, 1);
                ele.className = arrClassName.join(' ')
            }
        }
    }
}
function toggleClass(ele, cls) {
    if (hasClass(ele, cls)) {
        removeClass(ele, cls)
    } else {
        addClass(ele, cls)
    }
}
function hasClass(element, cls) {
    return (' ' + element.className + ' ').indexOf(' ' + cls + ' ') > -1
}
function getClassNames(classStr, target, tagName) {
    target = target ? target : document;
    tagName = tagName ? tagName : "*";
    if (document.getElementsByClassName) {
        return target.getElementsByClassName(classStr)
    } else {
        var nodes = target.getElementsByTagName(tagName),
            ret = [];
        for (i = 0; i < nodes.length; i++) {
            if (hasClass(nodes[i], classStr)) {
                ret.push(nodes[i])
            }
        }
        return ret
    }
}
function getElementLeft(ele) {
    var actualLeft = ele.offsetLeft;
    var current = ele.offsetParent;
    while (current !== null) {
        actualLeft += current.offsetLeft;
        current = current.offsetParent
    }
    return actualLeft
}
function getElementTop(ele) {
    var actualTop = ele.offsetTop;
    var current = ele.offsetParent;
    while (current !== null) {
        actualTop += current.offsetTop;
        current = current.offsetParent
    }
    return actualTop
}
var contains = document.documentElement.contains ? function(parent, node) { 
        if(parent){
            return parent !== node && parent.contains(node)
        }
        
      } : function(parent, node) {
        if(parent){
            while (node && (node = node.parentNode))
          if (node === parent) return true
            return false
        }
        
      }
function getBoundingClientRect(ele) {
    var scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
    var scrollLeft = document.documentElement.scrollLeft || document.body.scrollLeft;
    if (ele.getBoundingClientRect) {
        if (typeof arguments.callee.offset !== 'number') {
            var temp = document.createElement('div');
            temp.style.cssText = "position:absolute;top:0;left:0";
            document.body.appendChild(temp);
            arguments.callee.offset = -temp.getBoundingClientRect().top - scrollTop;
            document.body.removeChild(temp);
            temp = null
        }
        var rect = ele.getBoundingClientRect();
        var offset = arguments.callee.offset;
        return {
            left: rect.left + offset,
            right: rect.right + offset,
            top: rect.top + offset,
            bottom: rect.bottom + offset,
            width: (rect.right + offset) - (rect.left + offset),
            height: (rect.bottom + offset) - (rect.top + offset)
        }
    } else {
        var actualLeft = getElementLeft(ele);
        var actualTop = getElementTop(ele);
        var offsetWidth = ele.offsetWidth;
        var offsetHeight = ele.offsetHeight;
        return {
            left: actualLeft - scrollLeft,
            right: actualLeft + offsetWidth - scrollLeft,
            top: actualTop - scrollTop,
            bottom: actualTop + offsetHeight - scrollTop,
            width: (actualLeft + offsetWidth - scrollLeft) - (actualLeft - scrollLeft),
            height: (actualTop + offsetHeight - scrollTop) - (actualTop - scrollTop)
        }
    }
}

(function(window) {
    var tvSysBtnBind = function(init) {
            var _this = this,
                _self = self;
            var id = init.id ? init.id : null,
                keyRemoveDefault = typeof init.keyRemoveDefault == "undefined" ? false : init.keyRemoveDefault,
                currentIndex = init.currentIndex ? parseInt(init.currentIndex) : 0,
                btnLeft = init.btnLeft ? init.btnLeft : 37,
                btnUp = init.btnUp ? init.btnUp : 38,
                btnRight = init.btnRight ? init.btnRight : 39,
                btnDown = init.btnDown ? init.btnDown : 40,
                btnEnter = init.btnEnter ? init.btnEnter : 13,
                btnBack = init.btnBack ? init.btnBack : 27,
                history = typeof init.history == "undefined" ? true : init.history,
                doublePress = typeof init.doublePress == "undefined" ? false : init.doublePress,
                isFloatLast = typeof init.isFloatLast == "undefined" ? false : init.isFloatLast,
                isCentered = typeof init.isCentered == "undefined" ? true : init.isCentered,
                currentClass = init.currentClass ? init.currentClass : "current",
                effect = init.effect ? init.effect : "slide1",
                element = new Array(),
                rules = init.rules?init.rules:{hotbutton:{}},
                direction = "y";
            _this.className = init.className ? init.className : "hotbutton";
            this.event = {};
            var _tempElem;
            this.currentIndex = parseInt(currentIndex);
            this.defaultIndex = parseInt(currentIndex);
            this.currentClass = currentClass;
            this.historyFocus = {};
            if (!window.focusobj) window.focusobj = document.createElement("span");
            (typeof init.onLoad) == "function" ? init.onLoad : init.onLoad = function() {};
            (typeof init.onBack) == "function" ? init.onLoad : init.onBack = function() {};
            (typeof init.onCommPress) == "function" ? init.onCommPress : init.onCommPress = function() {};
            this.onLoad = function() {
                focusobj.innerHTML = '<div class="cssbk"><b class="lt"></b><b class="t"></b><b class="rt"></b><b class="r"></b><b class="rb"></b><b class="b"></b><b class="lb"></b> <b class="l"></b></div>';
                addClass(focusobj, "focusobj");
                addClass(focusobj, "current");
                focusobj.style.display = "none";
                _this.target = init.id ? document.getElementById(init.id) : document.body;
                _this.defaultTarget = _this.target;
                _this.currentId = init.id ? init.id : "Jdoc";
                self.getCurRule();
                _this.reLoad();
                self.onPressFn = _this.onPressRules
                _this.sourceClassName = _this.className;
                _this.sourceLength = element.length;
                _this.prev = element[currentIndex];
                _this.prevIndex = currentIndex;
                _this.current = element[currentIndex];
                _this.currentIndex = currentIndex;
                _this.target.appendChild(focusobj);
                init.onLoad.call(_this);
                window.focus();
            }
            self.getCurRule = function(item) {
                var obj = {};
                if (rules) {
                    obj = rules["#" + _this.currentId + ">." + _this.className];
                    if (typeof obj == "undefined") {
                        if (rules[_this.className]) {
                            obj = rules[_this.className]
                        }
                    }
                    if (item && typeof rules[item] == "undefined") {
                       // rules[item]={};
                    }
                }
                return obj
            }
            this.reSetClass = function(item, index, curClass) {
                var obj = _self.getCurRule(item);
                if (!obj) {
                    console.log("初始化" + _this.className + "失败");
                    return
                }
                if (typeof obj["history"] == "undefined") obj["history"] = history;
                if (obj["history"]) _this.historyFocus[_this.currentId + _this.className] = _this.currentIndex;
                _this.prevCurrentClass = _this.currentClass;
                if (curClass) {
                    _this.currentClass = curClass
                }
                var arr = item.split(">");
                for (var i = 0; i < arr.length; i++) {
                    if (arr[i] == "") arr.splice(i)
                }
                for (var i = 0; i < arr.length; i++) {
                    if (arr[i].indexOf("#") != -1) {
                        _this.currentId = arr[i].replace("#", "");
                        if (document.getElementById(_this.currentId)) _this.target = document.getElementById(_this.currentId)
                    }
                    if (arr[i].indexOf(".") != -1) {
                        item = arr[i].replace(".", "")
                    }
                    if (arr[i].indexOf(".") == -1 && arr[i].indexOf("#") == -1) {
                        item = arr[i]
                    }
                }
                if (getClassNames(item, _this.target).length > 0) {
                    _self.newItem(item, index)
                } else {
                    _this.target = _this.defaultTarget;
                    if (getClassNames(item, _this.target).length > 0) _self.newItem(item, index)
                }
            }
            this.onCommPress = function(e) {
                init.onCommPress.call(_this)
            }
            this.tsClose = function () {
                self.onPressFn = function(e){
                    e.preventDefault()
                    return
                }
            }
            this.tsOpen = function () {
                self.onPressFn = this.onPressRules
            }
            self.newItem = function(item, index) {
                var obj = _self.getCurRule();
                if (_this.prev) removeClass(_this.prev, _this.currentClass);
                if (typeof _this.historyFocus[_this.currentId + item] == "undefined") _this.historyFocus[_this.currentId + item] = 0;
                _this.className = item;
                var idx = obj["savelastIndex"] ? _this.currentIndex : 0;
                index = index > getClassNames(item, _this.target).length - 1 ? getClassNames(item, _this.target).length - 1 : index;
                idx = _this.historyFocus[_this.currentId + item] ? _this.historyFocus[_this.currentId + item] : idx;
                _this.currentIndex = typeof index != "undefined" ? index : idx;
                _this.prevIndex = _this.currentIndex;
                _this.reLoad()
            }
            self.readFn = function() {
                if ((typeof init.onEnterPress) == "function") {
                    init.onEnterPress
                } else {
                    init.onEnterPress = function() {}
                }
                if ((typeof init.onPress) == "function") {
                    init.onPress
                } else {
                    init.onPress = function() {}
                }
            }
            this.reLoad = function() {
                self.readFn();
                element = getClassNames(_this.className, _this.target);
                if (element.length <= 0) {
                    console.log("初始化" + _this.className + "失败");
                    return
                }
                this.hotbtn = element;
                if (element.length <= 0) return false;
                if (_this.currentIndex || _this.currentIndex == 0) {
                    _this.currentIndex = parseInt(_this.currentIndex)
                } else {
                    _this.currentIndex = parseInt(init.currentIndex)
                }
                if (isload >= 2 && _this.sourceClass == _this.className && _this.sourceLength != element.length && !isSet) {
                    if (hasClass(_this.prev, _this.className) && _this.sourceLength > element.length) {
                        _this.currentIndex = _this.currentIndex - (_this.sourceLength - element.length);
                        _this.prevIndex = _this.prevIndex - (_this.sourceLength - element.length);
                        _this.sourceLength = element.length
                    } else if (hasClass(_this.prev, _this.className) && _this.sourceLength < element.length) {
                        _this.currentIndex = _this.currentIndex + (element.length - _this.sourceLength);
                        _this.prevIndex = _this.prevIndex + (element.length - _this.sourceLength);
                        _this.sourceLength = element.length
                    }
                }
                isSet = false;
                self.overIndex();
                _this.current = element[_this.currentIndex];
                _this.currentIndex = _this.currentIndex;
                _self.render(_this.currentIndex);
                for (var i = 0; i < this.hotbtn.length; i++) {
                    this.hotbtn[i].setAttribute("data-id", i)
                }
            }
            function keydefault(e) {
                try {
                    e.preventDefault()
                } catch (e) {}
            }
            var isSet = false;
            this.setCurrentIndex = function(index) {
                isSet = true;
                index = parseInt(index);
                _this.currentIndex = index;
                _this.current = element[index]
            }
            this.pageScroll = function(ele, Scroll, direction) {
                if (!ele["data-sum"]) ele["data-sum"] = 0;
                if (!ele["data-sumx"]) ele["data-sumx"] = 0;
                ele.style.position = "relative";
                ele.children[0].style.position = "absolute";
                if (direction == "up") {
                    if (ele["data-sum"] - Scroll > 0) {
                        ele["data-sum"] = parseInt(ele["data-sum"]) - Scroll
                    } else {
                        ele["data-sum"] = 0
                    }
                    ele.children[0].style.left = "0";
                    ele.children[0].style.top = "-" + ele["data-sum"] + "px"
                } else if (direction == "down") {
                    var clientHeight = ele.children[0].clientHeight;
                    if (ele["data-sum"] + Scroll < clientHeight - ele.clientHeight / 2) {
                        ele["data-sum"] = parseInt(ele["data-sum"]) + Scroll
                    } else {
                        ele["data-sum"] = clientHeight - ele.clientHeight 
                    }
                    ele.children[0].style.left = "0";
                    ele.children[0].style.top = "-" + ele["data-sum"] + "px"
                } else if (direction == "left") {
                    if (ele["data-sumx"] - Scroll > 0) {
                        ele["data-sumx"] = parseInt(ele["data-sumx"]) - Scroll
                    } else {
                        ele["data-sumx"] = clientWidth - ele.clientWidth 
                    }
                    ele.children[0].style.top = "0";
                    ele.children[0].style.left = "-" + ele["data-sumx"] + "px"
                } else if (direction == "right") {
                    var clientWidth = ele.children[0].clientWidth;
                    if (ele["data-sumx"] + Scroll < clientWidth - ele.clientWidth / 2) {
                        ele["data-sumx"] = parseInt(ele["data-sum"]) + Scroll
                    } else {
                        ele["data-sumx"] = 0;
                    }
                    ele.children[0].style.top = "0";
                    ele.children[0].style.left = "-" + ele["data-sumx"] + "px"
                }
            }
            this.viewScrollY = function(y, view) {
                var maxTop = view.children[0].clientHeight - view.clientHeight;
                var obj = self.getCurRule();
                var sumtop = view.children[0]["ScrollY"] ? view.children[0]["ScrollY"] : 0;
                var top = sumtop + y;
                middle = getBoundingClientRect(view).height / 2 - getBoundingClientRect(_this.current).height / 2;
                top = top + middle;
                if (top > 0 || maxTop < 0) top = 0;
                else if (Math.abs(top) > Math.abs(maxTop)){
                      top = -maxTop; 
                      //view.children[0]["ScrollY"] == 0 这个句忘记干嘛的了 留着
                }
                top = obj["customTop"] != undefined ? obj["customTop"] : top;
                view.children[0].style.top = top + "px";
                view.children[0]["ScrollY"] = top
            }
            var maxLeft = 0;
            this.viewScrollX = function(x, view, viewWidth) {
                var maxLeft = viewWidth - view.clientWidth;
                var obj = self.getCurRule();
                var sumleft = view.children[0]["ScrollX"] ? view.children[0]["ScrollX"] : 0;
                var left = sumleft + x;
                middle = getBoundingClientRect(view).width / 2 - getBoundingClientRect(_this.current).width / 2;
                left = left + middle;
                if (left > 0 || maxLeft < 0) left = 0;
                else if (Math.abs(left) > Math.abs(maxLeft)){
                     left = -maxLeft;
                }
                left = obj["customLeft"] != undefined ? obj["customLeft"] : left;
                view.children[0].style.left = left + "px";
                view.children[0]["ScrollX"] = left
            }
            this.onPress = function(e) {
                init.onPress.call(_this)
            }
            this.onEnterPress = function() {
                init.onEnterPress.call(_this)
            }
            this.onBack = function() {
                init.onBack.call(_this)
            }
            self.getScrollTop = function() {
                var scrollTop = 0;
                if (document.documentElement && document.documentElement.scrollTop) {
                    scrollTop = document.documentElement.scrollTop
                } else if (document.body) {
                    scrollTop = document.body.scrollTop
                }
                return scrollTop
            }
            this.scroll = function(view,direction) {
                var obj = self.getCurRule();
                if (obj == undefined || !obj["direction"]) return;
                 
                direction=direction?direction:obj["direction"];
                var viewX=view?view:obj["directionParentX"]?obj["directionParentX"]:obj["directionParent"]?obj["directionParent"]:_this.current.parentNode.parentNode;
                var viewY=view?view:obj["directionParentY"]?obj["directionParentY"]:obj["directionParent"]?obj["directionParent"]:_this.current.parentNode.parentNode;
                var sum = 0;
                    if (direction.indexOf("x") > -1) {
                        if(viewX instanceof Array){
                            for (var i = 0; i < viewX.length; i++) {
                                
                                    if(contains(viewX[i],_this.current)){
                                        viewX=viewX[i];
                                    }
                                }
                        }
                        
                    if(viewX instanceof Array||!contains(viewX,_this.current))return;
                    for (var i = 0; i < _this.hotbtn.length; i++) {
                        sum = getBoundingClientRect(_this.hotbtn[i]).width + sum
                    }
                    if (_this.hotbtn.length > 1) {
                        if(!obj["scrollWidth"])
                        sum = sum + Math.ceil(getBoundingClientRect(_this.hotbtn[1]).left - getBoundingClientRect(_this.hotbtn[0]).right) * (_this.hotbtn.length);
                        else{
                            sum = _this.hotbtn.length*obj["scrollWidth"];//因为样式多样性，宽度获取并不准确 所以可以自定义
                        }

                    } else {
                        sum = sum;
                    }
                    viewX.style.position = "relative";
                    viewX.children[0].style.position = "absolute";
                    viewX.children[0].style.width = (sum) + "px";
                    _this.viewScrollX(-(getBoundingClientRect(_this.current).left - getBoundingClientRect(viewX).left), viewX, sum)
                }
                if (direction.indexOf("y") > -1) {
                    if(viewY instanceof Array ){
                            for (var i = 0; i < viewY.length; i++) {
                                  
                                    if(contains(viewY[i],_this.current)){
                                        viewY=viewY[i];
                                    }
                                }
                        }
                     if(viewY instanceof Array||!contains(viewY,_this.current))return;
                    viewY.style.position = "relative";
                    viewY.children[0].style.position = "absolute";
                    
                    _this.viewScrollY(-(getBoundingClientRect(_this.current).top - getBoundingClientRect(viewY).top), viewY)
                }
            }
            var isload = 0;
            self.render = function(index) {
                if (_this.renderType == "self") return;
                isload = isload + 1;
                if (isload == 2) {
                    _this.sourceLength = element.length
                }
                if (_this.prevCurrentClass) {
                    var ele = getClassNames(_this.prevCurrentClass, _this.target);
                    for (var i = 0; i < ele.length; i++) {
                        if (hasClass(ele[i], _this.prevCurrentClass)) {
                            removeClass(ele[i], _this.prevCurrentClass)
                        }
                    }
                }
                if (element[index]) addClass(element[index], _this.currentClass);
                else return;
                for (var i = 0; i < element.length; i++) {
                    if (i != index && hasClass(element[i], _this.currentClass)) {
                        removeClass(element[i], _this.currentClass)
                    }
                }
                _this.scroll();
                var effect = element[index].getAttribute("data-effect");
                if (effect) {
                    focusobj.setAttribute("style", "  position: fixed; z-index: 19;width:" + (getBoundingClientRect(element[index]).width) + "px ;height:" + (getBoundingClientRect(element[index]).height) + "px; left:" + getBoundingClientRect(element[index]).left + "px;top:" + getBoundingClientRect(element[index]).top + "px;");
                    focusobj.setAttribute("class", "focusobj current " + effect);
                    focusobj.style.display = "list-item"
                } else {
                    focusobj.setAttribute("style", "");
                    focusobj.style.display = "none"
                }
            }
            self.EventUtil = {
                add: function(obj, callback) {
                    if (typeof(obj.onkeypress) == "null") {
                        obj.onkeypress = function(e) {
                            callback && callback(e)
                        }
                    } else {
                        obj.onkeydown = function(e) {
                            callback && callback(e)
                        }
                    }
                }
            }
            var _t,sum=0;
            EventUtil.add(document, function(e) {
                _this.renderType = "self";
                if(doublePress){
                    if(sum<2)
                     clearTimeout(_t);
                      sum++;
                     _t =setTimeout(function(){
                        _self.onPressFn(e)
                        sum=0;
                    },100)
                 }else{
                    _self.onPressFn(e);
                 }
                
                
            });
            self.overIndex = function() {
                if (_this.currentIndex >= element.length - 1) {
                    _this.currentIndex = element.length - 1
                }
                if (_this.currentIndex < 0) {
                    _this.currentIndex = 0
                }
            }
            self.isNumber = function(val) {
                var regPos = /^\d+(\.\d+)?$/;
                var regNeg = /^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$/;
                if (regPos.test(val) || regNeg.test(val)) {
                    return true
                } else {
                    return false
                }
            }
            var distance = function(pointA, pointB, type) {
                    var P1 = getBoundingClientRect(pointA),
                        P2 = getBoundingClientRect(pointB);
                    var dist = 0;
                    switch (type) {
                        case "AA":
                            dist = Math.sqrt(((P1.left - P2.left) * (P1.left - P2.left)) + ((P1.top - P2.top) * (P1.top - P2.top)))
                             break;
                        case "AB":
                            dist = Math.sqrt(((P1.left - P2.right) * (P1.left - P2.right)) + ((P1.top - P2.top) * (P1.top - P2.top)))
                             break;
                        case "AC":
                            dist = Math.sqrt(((P1.left - P2.right) * (P1.left - P2.right)) + ((P1.top - P2.bottom) * (P1.top - P2.bottom)))
                             break;
                        case "AD":
                            dist = Math.sqrt(((P1.left - P2.left) * (P1.left - P2.left)) + ((P1.top - P2.bottom) * (P1.top - P2.bottom)))
                             break;
                        case "BA":
                            dist = Math.sqrt(((P1.right - P2.left) * (P1.right - P2.left)) + ((P1.top - P2.top) * (P1.top - P2.top)))
                             break;
                        case "BB":
                            dist = Math.sqrt(((P1.right - P2.right) * (P1.right - P2.right)) + ((P1.top - P2.top) * (P1.top - P2.top)))
                             break;
                        case "BC":
                            dist = Math.sqrt(((P1.right - P2.right) * (P1.right - P2.right)) + ((P1.top - P2.bottom) * (P1.top - P2.bottom)))
                             break;
                        case "BD":
                            dist = Math.sqrt(((P1.right - P2.left) * (P1.right - P2.left)) + ((P1.top - P2.bottom) * (P1.top - P2.bottom)))
                             break;
                        case "CA":
                            dist = Math.sqrt(((P1.left - P2.left) * (P1.left - P2.left)) + ((P1.bottom - P2.top) * (P1.bottom - P2.top)))
                             break;
                        case "CB":
                            dist = Math.sqrt(((P1.left - P2.right) * (P1.left - P2.right)) + ((P1.bottom - P2.top) * (P1.bottom - P2.top)))
                             break;
                        case "CC":
                            dist = Math.sqrt(((P1.left - P2.left) * (P1.left - P2.left)) + ((P1.bottom - P2.bottom) * (P1.bottom - P2.bottom)))
                             break;
                        case "CD":
                            dist = Math.sqrt(((P1.right - P2.left) * (P1.right - P2.left)) + ((P1.bottom - P2.bottom) * (P1.bottom - P2.bottom)))
                             break;
                        case "DA":
                            dist = Math.sqrt(((P1.left - P2.left) * (P1.left - P2.left)) + ((P1.bottom - P2.top) * (P1.bottom - P2.top)))
                             break;
                        case "DB":
                            dist = Math.sqrt(((P1.right - P2.right) * (P1.right - P2.right)) + ((P1.bottom - P2.top) * (P1.bottom - P2.top)))
                             break;
                        case "DC":
                            dist = Math.sqrt(((P1.right - P2.left) * (P1.right - P2.left)) + ((P1.bottom - P2.bottom) * (P1.bottom - P2.bottom)))
                             break;
                        case "DD":
                            dist = Math.sqrt(((P1.right - P2.right) * (P1.right - P2.right)) + ((P1.bottom - P2.bottom) * (P1.bottom - P2.bottom)))
                             break
                    }
                    return dist
                }
            self.ruleFn = function(index, direction) {
                var obj = {};
                if (rules) {
                    obj = _self.getCurRule()
                }
                if (obj && typeof obj == "object" && typeof obj["line"] != "undefined") {
                    var line = obj["line"]
                } else {
                    var line = _this.hotbtn.length
                }
                line = parseInt(line);
                if (obj && typeof obj == "object" && typeof obj[_this.currentIndex] != "undefined" && typeof obj[_this.currentIndex][index] != "undefined") {
                    var objRules = obj[_this.currentIndex];
                    if (self.isNumber(objRules[index])) {
                        _this.currentIndex = parseInt(_this.currentIndex) + parseInt(objRules[index])
                    } else if (Array.isArray(objRules[index])) {
                        _this.reSetClass(objRules[index][0], objRules[index][1], objRules[index][2])
                    } else if (typeof objRules[index] == "function") {
                        objRules[index].call(_this)
                    } else if (typeof obj["line"] != "undefined") {
                        _this.currentIndex = _this.currentIndex + line
                    }
                } else {
                    var jump = element[_this.currentIndex].getAttribute("data-" + direction);
                    jump = parseInt(jump);
                    var max=Math.sqrt(window.screen.width*window.screen.width+window.screen.height*window.screen.height);
                    if (direction == "up") {
                        if (_this.currentIndex > line - 1&&!obj["autoMove"]) _this.currentIndex = jump ? _this.currentIndex - jump : _this.currentIndex - line;
                        else if (obj && typeof obj["up"] == "object") _this.reSetClass(obj["up"][0], obj["up"][1], obj["up"][2]);
                        else if (obj && typeof obj["up"] == "function") obj["up"].call(_this)
                        else {
                            var min1 = max,min2 = max,
                                curIndex = _this.currentIndex, curIndex2 = _this.currentIndex;
                            for (var i = 0; i < _this.hotbtn.length; i++) {
                                var cur1 = distance(_this.current, _this.hotbtn[i], "AD");
                                var cur2 = distance(_this.current, _this.hotbtn[i], "BC");
                                if (cur1 < min1 && cur1 > 0 && getBoundingClientRect(_this.current).top > getBoundingClientRect(_this.hotbtn[i]).top && _this.currentIndex > i) {
                                    min1 = cur1;
                                    curIndex = i;
                                }

                                if (cur2 < min2 && cur2 > 0 && getBoundingClientRect(_this.current).top > getBoundingClientRect(_this.hotbtn[i]).top  && _this.currentIndex > i) {
                                    min2 = cur2;
                                    curIndex2 = i;
                                }
                            }
                            curIndex=min1<min2?curIndex:curIndex2;
                            _this.currentIndex = curIndex;
                        }
                    } else if (direction == "left") {
                        if ((_this.currentIndex) % line != 0&&!obj["autoMove"]) _this.currentIndex = jump ? _this.currentIndex - jump : _this.currentIndex - 1;
                        else if (obj && typeof obj["left"] == "object") _this.reSetClass(obj["left"][0], obj["left"][1], obj["left"][2]);
                        else if (obj && typeof obj["left"] == "function") obj["left"].call(_this)
                        else {
                            var min1 = max,min2 = max
                                curIndex = _this.currentIndex,curIndex2 = _this.currentIndex;
                            for (var i = 0; i < _this.hotbtn.length; i++) {
                                var cur1 = distance(_this.current, _this.hotbtn[i], "AB");
                                var cur2 = distance(_this.current, _this.hotbtn[i], "DC");
                                if (cur1 < min1 && cur1 > 0 && getBoundingClientRect(_this.current).left > getBoundingClientRect(_this.hotbtn[i]).left  && _this.currentIndex > i) {
                                    min1 = cur1;
                                    curIndex = i;
                                }

                                if (cur2 < min2 && cur2 > 0 && getBoundingClientRect(_this.current).left > getBoundingClientRect(_this.hotbtn[i]).left  && _this.currentIndex > i) {
                                    min2 = cur2;
                                    curIndex2 = i;
                                }
                            }
                            curIndex=min1<min2?curIndex:curIndex2;
                            _this.currentIndex = curIndex
                        }
                    } else if (direction == "right") {
                        if ((_this.currentIndex + 1) % line != 0&&!obj["autoMove"]) _this.currentIndex = jump ? _this.currentIndex + jump : _this.currentIndex + 1;
                        else if (obj && typeof obj["right"] == "object") _this.reSetClass(obj["right"][0], obj["right"][1], obj["right"][2]);
                        else if (obj && typeof obj["right"] == "function") obj["right"].call(_this)
                        else {
                            var min1 = max,min2 = max,
                                curIndex = _this.currentIndex,curIndex2 = _this.currentIndex;
                            for (var i = 0; i < _this.hotbtn.length; i++) {
                                var cur1 = distance(_this.current, _this.hotbtn[i], "BA");
                                var cur2 = distance(_this.current, _this.hotbtn[i], "CD");

                                if (cur1 < min1 && cur1 > 0 && getBoundingClientRect(_this.current).right< getBoundingClientRect(_this.hotbtn[i]).right  && _this.currentIndex < i) {
                                    min1 = cur1;
                                     curIndex = i;
                                }

                                if (cur2 < min2 && cur2 > 0 && getBoundingClientRect(_this.current).right < getBoundingClientRect(_this.hotbtn[i]).right  && _this.currentIndex < i) {
                                    min2 = cur2;
                                    
                                    curIndex2 = i;
                                }
                            }
                            curIndex=min1<min2?curIndex:curIndex2;
                            _this.currentIndex = curIndex;
                        }
                    } else if (direction == "down") {
                        if (_this.hotbtn.length - line > _this.currentIndex&&!obj["autoMove"]) _this.currentIndex = jump ? _this.currentIndex + jump : _this.currentIndex + line;
                        else if (obj && typeof obj["down"] == "object") _this.reSetClass(obj["down"][0], obj["down"][1], obj["down"][2]);
                        else if (obj && typeof obj["down"] == "function") obj["down"].call(_this);
                        else if (_this.currentIndex + line > _this.hotbtn.length - 1 && _this.currentIndex + line <= (line - _this.hotbtn.length % line) + _this.hotbtn.length - 1 && _this.hotbtn.length % line != 0 && isFloatLast) {
                            _this.currentIndex = _this.currentIndex + line;
                            self.overIndex()
                        } else {
                            var min1 = max,min2=max,
                                curIndex = _this.currentIndex,curIndex2=_this.currentIndex;
                            for (var i = 0; i < _this.hotbtn.length; i++) {
                                var cur1 = distance(_this.current, _this.hotbtn[i], "DA");
                                var cur2 = distance(_this.current, _this.hotbtn[i], "CB");
                                if (cur1 < min1 && cur1>0&&getBoundingClientRect(_this.current).bottom < getBoundingClientRect(_this.hotbtn[i]).bottom&&_this.currentIndex < i) {
                                    min1 = cur1;
                                    curIndex = i;
                                }
                                if (cur2 < min2 &&cur2>0&& getBoundingClientRect(_this.current).bottom < getBoundingClientRect(_this.hotbtn[i]).bottom&&_this.currentIndex < i) {
                                    min2 = cur2;
                                    curIndex2 = i;
                                }
                            }
                            
                             curIndex=min1<min2?curIndex:curIndex2;
                            _this.currentIndex = curIndex;
                        }
                    }
                }
            }
            self.rule = function(keyCode) {
                if (element.length <= 0) {
                    console.log("初始化" + _this.className + "失败");
                    return
                }
                self.overIndex();
                if (keyCode == btnLeft) {
                    self.ruleFn(0, "left")
                } else if (keyCode == btnRight) {
                    self.ruleFn(2, "right")
                } else if (keyCode == btnUp) {
                    self.ruleFn(1, "up")
                } else if (keyCode == btnDown) {
                    self.ruleFn(3, "down")
                }
                self.overIndex()
            }
            this.BACK = function() {
                self.onPressFn("back")
            }
            this.LEFT = function() {
                self.onPressFn("left")
            }
            this.RIGHT = function() {
                self.onPressFn("right")
            }
            this.UP = function() {
                self.onPressFn("up")
            }
            this.DOWN = function() {
                self.onPressFn("down")
            }
            this.onPressRules = function(e) {
                var keyCode = "";
                if (typeof e == "object") {
                    keyCode = e.keyCode
                } else {
                    if (e == "left") {
                        keyCode = btnLeft
                    } else if (e == "right") {
                        keyCode = btnRight
                    } else if (e == "up") {
                        keyCode = btnUp
                    } else if (e == "down") {
                        keyCode = btnDown
                    } else if (e == "back") {
                        keyCode = btnBack
                    }
                }
                _this.event = e;
                _this.currentIndex = _this.currentIndex >= element.length - 1 ? element.length - 1 : _this.currentIndex;
                _this.prev = element[_this.currentIndex];
                _this.prevIndex = _this.currentIndex;
                self.rule(keyCode);
                _this.current = element[_this.currentIndex];
                _this.currentIndex = _this.currentIndex;
                _this.className = _this.className;
                _this.onCommPress.call(_this);
                if (keyCode == 8 || keyCode == btnBack) {
                    if (rules["#" + _this.currentId + ">." + _this.className] && (typeof rules["#" + _this.currentId + ">." + _this.className]["onBack"]) == "function") rules["#" + _this.currentId + ">." + _this.className]["onBack"].call(_this);
                    else if (rules[_this.className] && (typeof rules[_this.className]["onBack"]) == "function") rules[_this.className]["onBack"].call(_this);
                    else _this.onBack.call(_this)
                }
                if (rules && rules["#" + _this.currentId + ">." + _this.className] && (typeof rules["#" + _this.currentId + ">." + _this.className]["onPress"]) == "function") init.rules["#" + _this.currentId + ">." + _this.className]["onPress"].call(_this);
                else if (rules && rules[_this.className] && (typeof rules[_this.className]["onPress"]) == "function") init.rules[_this.className]["onPress"].call(_this);
                else _this.onPress.call(_this);
                if (keyCode == btnEnter) {
                    if (rules["#" + _this.currentId + ">." + _this.className] && (typeof rules["#" + _this.currentId + ">." + _this.className]["onEnterPress"]) == "function") rules["#" + _this.currentId + ">." + _this.className]["onEnterPress"].call(_this);
                    else if (rules[_this.className] && (typeof rules[_this.className]["onEnterPress"]) == "function") rules[_this.className]["onEnterPress"].call(_this);
                    else _this.onEnterPress.call(_this)
                }
                _this.renderType = "";
                _self.render(_this.currentIndex);
                keydefault(e)
            }
            this.onLoad()
        }
    window.tvSysBtnBind = tvSysBtnBind
})(window)