xiaoben-as2-php/js/online/util.js

var isProduction = ~location.host.indexOf('schcur.com');

//判断是新建答题卡，还是根据已经有的试卷信息生成答题卡
//GetQueryString('new') === 'true';
var isNewBuild = ~location.href.indexOf('online/third')
String.prototype.substitute = function(data) {
  if (data && typeof data == 'object') {
    return this.replace(/\{([^{}]+)\}/g, function(match, key) {
      var value = data[key]
      return value !== undefined ? '' + value : ''
    })
  } else {
    return this.toString()
  }
}
String.prototype.clearFixible = function(){
  return this.replace(/<div class="flexible_icon"(.*)><i class="resize_nwse"><\/i><\/div>/g,'')
}

function GetQueryString(name) {
  var reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)')
  var r = window.location.search.substr(1).match(reg) //search,查询？后面的参数，并匹配正则
  if (r != null) return unescape(r[2])
  return null
}

//将base64转换为文件对象
function dataURLtoFile(dataurl, filename) {
  var arr = dataurl.split(',')
  var mime = arr[0].match(/:(.*?);/)[1]
  var bstr = atob(arr[1])
  var n = bstr.length
  var u8arr = new Uint8Array(n)
  while (n--) {
    u8arr[n] = bstr.charCodeAt(n)
  }
  //转换成file对象
  return new File([u8arr], filename, { type: mime })
  //转换成成blob对象
  //return new Blob([u8arr], { type: mime })
}

function UnitConversion() {
  /**
   * 获取DPI
   * @returns {Array}
   */
  this.conversion_getDPI = function() {
    var arrDPI = new Array()
    if (window.screen.deviceXDPI) {
      arrDPI[0] = window.screen.deviceXDPI
      arrDPI[1] = window.screen.deviceYDPI
    } else {
      var tmpNode = document.createElement('DIV')
      tmpNode.style.cssText =
        'width:1in;height:1in;position:absolute;left:0px;top:0px;z-index:99;visibility:hidden'
      document.body.appendChild(tmpNode)
      arrDPI[0] = parseInt(tmpNode.offsetWidth)
      arrDPI[1] = parseInt(tmpNode.offsetHeight)
      tmpNode.parentNode.removeChild(tmpNode)
    }
    return arrDPI
  }
  /**
   * px转换为mm
   * @param value
   * @returns {number}
   */
  this.pxConversionMm = function(value) {
    var inch = value / this.conversion_getDPI()[0]
    var c_value = inch * 25.4
    return c_value
  }
  /**
   * mm转换为px
   * @param value
   * @returns {number}
   */
  this.mmConversionPx = function(value) {
    /**
     * in 英尺单位 1in = 25.4 mm
     */
    var inch = value / 25.4
    var c_value = inch * this.conversion_getDPI()[0]
    return c_value
  }
}

//复选
function CheckBoxItem($checkBox, allFn, singleFn) {
  this.allFn = allFn || function() {}
  this.singleFn = singleFn || function() {}
  this.$checBox = $checkBox
  //除了 全选 禁用按钮以外的其他按钮的集合
  this.totalCount = this.$checBox.find(
    '.h_checkItem:not(".checkAll"):not(".disabled")'
  ).length
  this.checkedItemsCount = 0
  this.bindEvent()
}
CheckBoxItem.prototype.bindEvent = function() {
  var self = this
  this.$checBox.on('click', '.h_checkItem', function() {
    var isDisabled = $(this).hasClass('disabled')
    var isChecked = $(this).hasClass('checked')
    var isCheckAllEl = $(this).hasClass('checkAll')
    if (isDisabled) return
    $(this)[isChecked ? 'removeClass' : 'addClass']('checked')
    if (isCheckAllEl) {
      var checkItems = $(this).siblings('.h_checkItem')
      checkItems[isChecked ? 'removeClass' : 'addClass']('checked')
      self.checkedItemsCount = isChecked ? 0 : checkItems.length
      self.allFn($(this), !isChecked)
    } else {
      var checkAll = $(this).siblings('.checkAll')
      !isChecked ? self.checkedItemsCount++ : self.checkedItemsCount--
      var isCheckAllStatus = self.checkedItemsCount >= self.totalCount
      checkAll[isCheckAllStatus ? 'addClass' : 'removeClass']('checked')
      self.singleFn($(this), !isChecked)
    }
  })
}

// 单选
function RadioBoxItem($radioBox, fn) {
  this.$radioBox = $radioBox

  this.cb = fn

  this.bindEvent()
}
RadioBoxItem.prototype.bindEvent = function() {
  var self = this
  this.$radioBox.on('click', '.h_radioItem', function() {
    var isDisabled = $(this).hasClass('disabled')
    var isChecked = $(this).hasClass('checked')
    if (isDisabled) return

    $(this)
      .addClass('checked')
      .siblings('.h_radioItem')
      .removeClass('checked')
    self.cb && self.cb($(this))
  })
}

// 切换
function Switch($switch, fn, defaultstatus) {
  this.$switch = $switch
  this.status = defaultstatus || false
  this.cb = fn || function() {}
  this.bindEvent()
}
Switch.prototype.bindEvent = function() {
  var self = this
  this.$switch.click(function() {
    $(this).toggleClass('open')
    self.status = !self.status
    self.cb && self.cb(self.status)
  })
}

//layer使用判断
window.hgc_layer = layui.layer


window.logs = isProduction?window.console.log:function(){}
function simpleCopy(obj) {
  return JSON.parse(JSON.stringify(obj))
}
//公共弹框
var hgc_modal = {
  tpl:
    '<div class="hgc_modalBox">\
			<div class="hgc_modal">\
				<h2><em>{title}</em><i class="close">X</i></h2>\
				<div class="modalContent">{content}</div>\
				<div class="modalBtns">\
					<span class="h_btn sure">{ensureText}</span>\
					<span class="h_btn cancel">{cancelText}</span>\
				</div>\
			</div>\
		</div>',
  init: function(data) {
    this.title = data.title || '消息提示'
    this.conetnt = data.content || '提示消息'
    this.ensureText = data.ensureText || '确定'
    this.cancelText = data.cancelText || '取消'
    this.sureCb = data.sureCb || function() {}
    this.cancelCb = data.cancelCb || function() {}
    this.afterCb = data.afterCb || function() {}

    this.render()
    this.initDom()
    this.bindEvent()
  },
  initDom: function() {
    this.$modalBox = $('.hgc_modalBox')
  },
  render: function(content) {
    var self = this
    $('body').append(
      self.tpl.substitute({ 
        content: self.conetnt, 
        title: self.title ,
        ensureText:self.ensureText,
        cancelText:self.cancelText
      })
    )
    self.afterCb && self.afterCb()
  },
  bindEvent: function() {
    var self = this
    //
    self.$modalBox.find('.modalBtns .sure').click(function() {
      self.sureCb()
      self.$modalBox.remove()
    })
    self.$modalBox.find('.modalBtns .cancel').click(function() {
      self.$modalBox.remove()
      self.cancelCb()
      
    })
    self.$modalBox.find('h2 .close').click(function() {
      self.$modalBox.remove()
    })
  }
}


//阿拉伯数字和中文数字转换
function SectionToChinese(section) {
  var chnNumChar = ['', '一', '二', '三', '四', '五', '六', '七', '八', '九']
  var chnUnitChar = ['', '十', '百', '千']
  var strIns = '',chnStr = ''
  var unitPos = 0
  var zero = true
  while (section > 0) {
    var v = section % 10
    if (v === 0) {
      if (!zero) {
        zero = true
        chnStr = chnNumChar[v] + chnStr
      }
    } else {
      zero = false
      strIns = chnNumChar[v]
      strIns += chnUnitChar[unitPos]
      chnStr = strIns + chnStr
    }
    unitPos++
    section = Math.floor(section / 10)
  }
  return chnStr
}


/**
 * log 日志函数
 * 可以配置过滤参数
 */
window.log = function(obj,filterKey){
    if(Object.prototype.toString.call(obj) === '[object Object]'){
        var filterFn = filterKey?function(key,val){
            if(key === filterKey){
                return null
            }
            return val
        }:null
        console.log(JSON.stringify(obj,filterFn,4))
    }else{
        console.log(obj)
    }
    
}

//全局生成唯一key
var uid = 0;
function guid() {
  var uidStart = Object.keys(Print.questionMap).length;
  return 'modelId'+ ++uidStart
};

function _symbolId() {
  return Math.random().toString(36).substr(3,10);
};

//字符串转base64
function encode(str){
  // 对字符串进行编码
  var encode = encodeURI(str);
  // 对编码的字符串转化base64
  var base64 = btoa(encode);
  return base64;
  };
  // base64转字符串
  function decode(base64){
    // 对base64转编码
    var decode = atob(base64);
    // 编码转字符串
    var str = decodeURI(decode);
    return str;
  }

  ;function isBase64 (str){
    if(!str || !str.trim()) return false;
    try {
      return btoa(atob(str)) == str
    } catch (error) {
      return false
    }

  }