/* 功能: Chosen通用初始化
 * 創(chuàng)建人：Brian 創(chuàng)建時(shí)間：2016-12-13
 */
(function ($j) {
  var chosenTool = function (el, options) {
    this.opts = options;
    this.chosenInit();
    this.chose_get_init();
    this.chose_mult_set_init(this.opts.hidClassName);
    this.clickEvent();
    return this;
  }
  chosenTool.opts = {
    selectId: '',//selectId
    hidClassName: '',//隱藏域Class
    placeholdertxt: '',//select中placeholder文字
    noresulttxt: '',//輸入的名稱未查到時(shí)顯示的文字
    dataJson: ''//數(shù)據(jù)源
  };
  $j.fn.myChosenTool = function (opt) {
    var value,
      args = Array.prototype.slice.call(arguments, 1);
    var $jthis = $j(this),
      data = $jthis.data('chosenTool'),
      options = $j.extend({}, chosenTool.opts, $jthis.data(),
        typeof option === 'object' && option);
    if (typeof option === 'string') {
      //判斷用戶調(diào)用的方法是否存在
      //if ($j.inArray(option, allowedMethods) < 0) {
      //  throw new Error("Unknown method: " + option);
      //}
      if (!data) {
        return;
      }
      value = data[option].apply(data, args);
      if (option === 'destroy') {
        $jthis.removeData('chosenTool');
      }
    }
    /*插件外部調(diào)用插件內(nèi)部的方法需要修改成下面形式*/
    //if (typeof opt === 'string') {
    //  if (!data) {
    //    return;
    //  }
    //  value = data[opt].apply(data, args);
    //  if (opt === 'destroy') {
    //    $jthis.removeData('chosenTool');
    //  }
    //}
    if (!data) {
      opt["selectId"] = $j(this).attr("id");
      $jthis.data('chosenTool', (data = new chosenTool(this, opt)));
    }
    console.log(data);
    return typeof value === 'undefined' ? this : value;
  };
  chosenTool.prototype.clickEvent = function () {
    var _this = this;
    $j("#" + this.opts.selectId).on("change", function () {
      _this.chose_get_value();
    });
  };
  /*下拉框初始化方法*/
  chosenTool.prototype.selectInfoInit = function () {
    var proOPts = "";
    this.opts.dataJson = $j.parseJSON(this.opts.dataJson);
    $j.each(this.opts.dataJson, function (index, item) {
      proOPts += "<option value='" + item.ValueField + "'>" + item.TextField + "</option>";
    });
    $j("#" + this.opts.selectId).append(proOPts);
    //初始化chosen
    $j("#" + this.opts.selectId).chosen({
      allow_single_deselect: true, //是否允許取消選擇
      placeholder_text_multiple: this.opts.placeholdertxt, //多選框沒有選中任何值的時(shí)候 顯示的文字
      no_results_text: this.opts.noresulttxt,//無搜索結(jié)果時(shí)顯示的文本
      search_contains: true//是否支持模糊搜索
    });
  };
  /*對(duì)象初始化方法*/
  chosenTool.prototype.chosenInit = function () {
    this.selectInfoInit();
  };
  //私有方法，檢測(cè)參數(shù)是否合法
  chosenTool.prototype.isValid = function () {
    return !this.options || (this.options && typeof this.options === "object") ? true : false;
  };
  //數(shù)據(jù)同步
  chosenTool.prototype.chose_get_init = function () {
    var selectId = this.opts.selectId;
    $j("#" + this.opts.selectId).chosen().change(
         function () {
           $j("#" + selectId).trigger("liszt:updated");//更新下拉框
         });
  };
  //單選select value獲取
  chosenTool.prototype.chose_get_value = function () {
    var selectVal = $j("#" + this.opts.selectId).val();
    $j("." + this.opts.hidClassName).val(selectVal);
  };
  //單選select value獲取
  chosenTool.prototype.chose_mult_set_init = function () {
    var values = $j("." + this.opts.hidClassName).val();
    if (values && values.indexOf(',') > 0) {
      var arr = values.split(',');
      var length = arr.length;
      var value = '';
      for (i = 0; i < length; i++) {
        value = arr[i];
        $j("#" + this.opts.selectId + " [value='" + value + "']").attr('selected', 'selected');
      }
    } else {
      $j("#" + this.opts.selectId + " [value='" + values + "']").attr('selected', 'selected');
    }
    $j("#" + this.opts.selectId).trigger("liszt:updated");
  };
  //select text獲取，多選時(shí)請(qǐng)注意
  chosenTool.prototype.chose_get_text = function () {
    return $j("#" + this.opts.selectId + " option:selected").text();
  };
})(jQuery);