/* Author：mingyuhisoft@163.com
 * Github:https://github.com/imingyu/jquery.mloading
 * Npm:npm install jquery.mloading.js
 * Date：2016-7-4
 */

;(function (root, factory) {
  'use strict';

  if (typeof module === 'object' && typeof module.exports === 'object') {
    factory(require('jquery'),root);
  } if(typeof define ==="function"){
    if(define.cmd){
      define(function(require, exports, module){
        var $ = require("jquery");
        factory($,root);
      });
    }else{
      define(["jquery"],function($){
        factory($,root);
      });
    }
  }else {
    factory(root.jQuery,root);
  }
} (typeof window !=="undefined" ? window : this, function ($, root, undefined) {
  'use strict';
  if(!$){
    $ = root.jQuery || null;
  }
  if(!$){
    throw new TypeError("必须引入jquery库方可正常使用！");
  }

  var arraySlice = Array.prototype.slice,
    comparison=function (obj1,obj2) {
      var result=true;
      for(var pro in obj1){
        if(obj1[pro] !== obj2[obj1]){
          result=true;
          break;
        }
      }
      return result;
    }

  function MLoading(dom,options) {
    options=options||{};
    this.dom=dom;
    this.options=$.extend(true,{},MLoading.defaultOptions,options);
    this.curtain=null;
    this.render().show();
  }
  MLoading.prototype={
    constructor:MLoading,
    initElement:function () {
      var dom=this.dom,
        ops=this.options;
      var curtainElement=dom.children(".mloading"),
        bodyElement = curtainElement.children('.mloading-body'),
        barElement = bodyElement.children('.mloading-bar'),
        iconElement = barElement.children('.mloading-icon'),
        textElement = barElement.find(".mloading-text");
      if (curtainElement.length == 0) {
        curtainElement = $('<div class="mloading"></div>');
        dom.append(curtainElement);
      }
      if (bodyElement.length == 0) {
        bodyElement = $('<div class="mloading-body"></div>');
        curtainElement.append(bodyElement);
      }
      if (barElement.length == 0) {
        barElement = $('<div class="mloading-bar"></div>');
        bodyElement.append(barElement);
      }
      if (iconElement.length == 0) {
        var _iconElement=document.createElement(ops.iconTag);
        iconElement = $(_iconElement);
        iconElement.addClass("mloading-icon");
        barElement.append(iconElement);
      }
      if (textElement.length == 0) {
        textElement = $('<span class="mloading-text"></span>');
        barElement.append(textElement);
      }

      this.curtainElement=curtainElement;
      this.bodyElement = bodyElement;
      this.barElement = barElement;
      this.iconElement = iconElement;
      this.textElement = textElement;
      return this;
    },
    render:function () {
      var dom=this.dom,
        ops=this.options;
      this.initElement();
      if(dom.is("html") || dom.is("body")){
        this.curtainElement.addClass("mloading-full");
      }else{
        this.curtainElement.removeClass("mloading-full");

        if(!dom.hasClass("mloading-container")){
          dom.addClass("mloading-container");
        }
      }
      if(ops.mask){
        this.curtainElement.addClass("mloading-mask");
      }else{
        this.curtainElement.removeClass("mloading-mask");
      }
      if(ops.content!="" && typeof ops.content!="undefined"){
        if(ops.html){
          this.bodyElement.html(ops.content);
        }else{
          this.bodyElement.text(ops.content);
        }
      }else{
        this.iconElement.attr("src",ops.icon);
        if(ops.html){
          this.textElement.html(ops.text);
        }else{
          this.textElement.text(ops.text);
        }
      }

      return this;
    },
    setOptions:function (options) {
      options=options||{};
      var oldOptions = this.options;
      this.options = $.extend(true,{},this.options,options);
      if(!comparison(oldOptions,this.options)) this.render();
    },
    show:function () {
      var dom=this.dom,
        ops=this.options,
        barElement=this.barElement;
      this.curtainElement.addClass("active");
      barElement.css({
        "marginTop":"-"+barElement.outerHeight()/2+"px",
        "marginLeft":"-"+barElement.outerWidth()/2+"px"
      });

      return this;
    },
    hide:function () {
      var dom=this.dom,
        ops=this.options;
      this.curtainElement.removeClass("active");
      if(!dom.is("html") && !dom.is("body")){
        dom.removeClass("mloading-container");
      }
      return this;
    },
    destroy:function () {
      var dom=this.dom,
        ops=this.options;
      this.curtainElement.remove();
      if(!dom.is("html") && !dom.is("body")){
        dom.removeClass("mloading-container");
      }
      dom.removeData(MLoading.dataKey);
      return this;
    }
  };
  MLoading.dataKey="MLoading";
  MLoading.defaultOptions = {
    text:"加载中...",
    iconTag:"img",
    icon:"data:image/gif;base64,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",
    html:false,
    content:"",//设置content后，text和icon设置将无效
    mask:true//是否显示遮罩（半透明背景）
  };

  $.fn.mLoading=function (options) {
    var ops={},
      funName="",
      funArgs=[];
    if(typeof options==="object"){
      ops = options;
    }else if(typeof options ==="string"){
      funName=options;
      funArgs = arraySlice.call(arguments).splice(0,1);
    }
    return this.each(function (i,element) {
      var dom = $(element),
        plsInc=dom.data(MLoading.dataKey);
      if(!plsInc){
        plsInc=new MLoading(dom,ops);
      }

      if(funName){
        var fun = plsInc[funName];
        if(typeof fun==="function"){
          fun.apply(plsInc,funArgs);
        }
      }
    });
  }
}));