php/www/webapp/common/js/helper.js

/**
 * desc: 辅助方法
 * author: wangyang
 * date: 2015-04-11
 */
define(['config'], function(config) {
  return {
    //根据系统调用不同的函数
    osProxy: function(fn) {
      var os = '';
      if (config.isIOS) {
        os = 'ios';
      } else if (config.isAndroid) {
        os = 'android';
      } else if (config.isWX) {
        os = 'wx';
      } else if (config.isChubao) {
        os = 'cb'
      }
      if (!!fn[os]) {
        return fn[os].call();
      } else {
        // console.log(os + '-没有定义方法');
            return false;
      }
    },
    //动态载入样式
    includeStyleElement: function(styles, styleId) {
      if (document.getElementById(styleId)) {
        return false;
      }
      var style = document.createElement('style');
      style.id = styleId;
      (document.getElementsByTagName('head')[0] || document.body).appendChild(style);
      if (style.styleSheet) { //for ie
        style.styleSheet.cssText = styles;
      } else {//for w3c
        style.appendChild(document.createTextNode(styles));
      }
    },
    //获取当前的日期字符串
    getDateStr: function(options) {
      var defaultOptions = {
        date: new Date(),
        separator: ''
      };
      var finalOptions = $.extend(true, defaultOptions, options);
      var year = finalOptions.date.getFullYear();
      var month = finalOptions.date.getMonth() + 1;
      if (month < 10) {
        month = '0' + month;
      }
      var day = finalOptions.date.getDate();
      if (day < 10) {
        day = '0' + day;
      }
      return year + finalOptions.separator + month + finalOptions.separator + day;
    },
    //返回倒计时字符串
    formatCountDown: function(left_value) {
      var hour, minite, second;
      hour = parseInt(left_value / 3600);
      left_value -= 3600 * hour;
      minite = parseInt(left_value / 60);
      second = left_value - 60 * minite;
      if (minite < 10) {
        minite = '0' + minite;
      }
      if (second < 10) {
        second = '0' + second;
      }
      return hour + ' : ' + minite + ' : ' + second;
    }
    }
})