JavaScript实现跑马灯抽奖活动实例代码解析与优化（二）

//这里的node-type="reward-area" 是标识我们插件的容器节点
<div class="re-area" node-type="reward-area" >

$(function() {
//这里的 test 是代表容器的 class
window.LightRotate.init($('[node-type=reward-area]'));
});

(function(){
// do something
})();

//
(function($){
// 创建功能对象
var LightRotate = function (select) {
// do something
};
LightRotate.init = function (select) {
var _this = this;
//根据不同的容器实例化不同的对象
select.each(function () {
new _this($(this));
});
};
window.LightRotate = LightRotate;
})(jQuery);

//
(function($){
// 创建功能对象
var LightRotate = function (select) {
// 自定义的参数
this.setting = {
liAutoPlay: false, //周围的灯是否自动旋转
roLiSpeed: 100, //灯旋转的速度ms
roPrSpeed: 200, //奖品旋转速度ms
liDirection: true, //旋转方向 true 正方向 false 反方向
randomPrize: false //空格是否随机选取
};
};
LightRotate.init = function (select) {
var _this = this;
//根据不同的容器实例化不同的对象
select.each(function () {
new _this($(this));
});
};
window.LightRotate = LightRotate;
})(jQuery);

<div class="re-area" node-type="reward-area" data-setting='{
"liAutoPlay":false,
"roLiSpeed":100,
"roPrSpeed":200,
"liDirection":true,
"randomPrize":false}'>

//
(function($){
// 创建功能对象
var LightRotate = function (select) {
// 自定义的参数
this.setting = {
liAutoPlay: false, //周围的灯是否自动旋转
roLiSpeed: 100, //灯旋转的速度ms
roPrSpeed: 200, //奖品旋转速度ms
liDirection: true, //旋转方向 true 正方向 false 反方向
randomPrize: false //空格是否随机选取
};
//这里调用对象的获取用户自定义参数的方法，并且将默认参数合并
$.extend(_this.setting, _this.getSettingUser());
};
LightRotate.prototype = {
//扩展获取用户自定义参数的方法
getSettingUser: function () {
var userSetting = this.LightArea.attr('data-setting');
if (userSetting && userSetting !== '') {
return $.parseJSON(userSetting);
} else {
return {};
}
}
}；
LightRotate.init = function (select) {
var _this = this;
//根据不同的容器实例化不同的对象
select.each(function () {
new _this($(this));
});
};
window.LightRotate = LightRotate;
})(jQuery);

LightRotate.prototype = {
//扩展获取用户自定义参数的方法
getSettingUser: function () {
var userSetting = this.LightArea.attr('data-setting');
if (userSetting && userSetting !== '') {
return $.parseJSON(userSetting);
} else {
return {};
}
},
//销毁对象参数
destory: function () {
$(_this.LightArea).off();
this.closeAnimation();
this.rewardTimer = null;
}
}；

//获取外围的灯，可以看到我这里使用的选择器多了一个 select，是为了获取当前容器下的某些元素，避免有多个容器存在时冲突
this.topLight = $('[node-type=re-top]', select).find('span');
this.rightLight = $('[node-type=re-right]', select).find('span');
this.bottomLight = $('[node-type=re-bottom]', select).find('span');
this.leftLight = $('[node-type=re-left]', select).find('span');

Zepto(topLight).each(function() {
lightList.push(this);
});
Zepto(rightLight).each(function() {
lightList.push(this);
});
for (var j = bottomLight.length - 1; j >= 0; j--) {
lightList.push(bottomLight[j]);
}
for (var m = leftLight.length - 1; m >= 0; m--) {
lightList.push(leftLight[m]);
}

function () {
var lightList = [];
var bottomRever;
var leftRever;
bottomRever = Array.from(this.bottomLight).reverse();
leftRever = Array.from(this.leftLight).reverse();
lightList = Array.from(this.topLight).concat(Array.from(this.rightLight));
lightList = lightList.concat(bottomRever);
lightList = lightList.concat(leftRever);
}

var zepto_light = Zepto(lightList);
var changeTime = 100;
var lightLength = zepto_light.length;
var totleTime = changeTime * lightLength;
function lightOpen() {
for (var i = 0; i < lightLength; i++) {
(function temp(i) {
lightTimer = setTimeout(function() {
if (stopAnimation === false) {
Zepto(zepto_light).removeClass('light_open');
Zepto(zepto_light[i]).addClass("light_open");
} else {
return;
}
}, changeTime * i);
})(i);
}
}

lightRun: function () {
var _this = this;
function tempFunc() {
var lightList = _this.getLightList();
var lightLength = lightList.length;
var i = 0;
return function () {
$(lightList, _this.LightArea).removeClass('light_open');
$(lightList[i], _this.LightArea).addClass("light_open");
i++;
//使一轮循环结束后能够继续下次循环
if (i === lightLength) {
i = 0;
}
};
}
var lightRunFunc = tempFunc();
lightRunFunc();
_this.lightInterVal = setInterval(lightRunFunc, _this.setting.roLiSpeed);
}