JavaScript实现城市选择控制的效果

/* * 
 * 格式化城市数组为对象oCity，按照a-h,i-p,q-z,hot热门城市分组： 
 * {HOT:{hot:[]},ABCDEFGH:{a:[1,2,3],b:[1,2,3]},IJKLMNOP:{i:[1.2.3],j:[1,2,3]},QRSTUVWXYZ:{}} 
 * */ 
 
(function () { 
 var citys = Vcity.allCity, match, letter, 
  regEx = Vcity.regEx, 
  reg2 = /^[a-h]$/i, reg3 = /^[i-p]$/i, reg4 = /^[q-z]$/i; 
 if (!Vcity.oCity) { 
  Vcity.oCity = {hot:{},ABCDEFGH:{}, IJKLMNOP:{}, QRSTUVWXYZ:{}}; 
  //console.log(citys.length); 
  for (var i = 0, n = citys.length; i 

sortKey=[]; 
   for(ckey in oCity[key]){ 
    sortKey.push(ckey); 
    // ckey按照ABCDEDG顺序排序 
    sortKey.sort(); 
   } 
   for(var j=0,k = sortKey.length;j'; 
     odda.push(str); 
    } 

switch(keycode){ 
   case 40: //向下箭头↓ 
    this.count++; 
    if(this.count > len-1) this.count = 0; 
    for(var i=0;i

/* IE6的改变遮罩SELECT 的 IFRAME尺寸大小 */ 
 changeIframe:function(){ 
  if(!this.isIE6)return; 
  this.myIframe.style.width = this.rootDiv.offsetWidth + 'px'; 
  this.myIframe.style.height = this.rootDiv.offsetHeight + 'px'; 
 }

// 设置点击文档隐藏弹出的城市选择框 
  Vcity._m.on(document, 'click', function (event) { 
   event = Vcity._m.getEvent(event); 
   var target = Vcity._m.getTarget(event); 
   if(target == that.input) return false; 
   //console.log(target.className); 
   if (that.cityBox)Vcity._m.addClass('hide', that.cityBox); 
   if (that.ul)Vcity._m.addClass('hide', that.ul); 
   if(that.myIframe)Vcity._m.addClass('hide',that.myIframe); 
  }); 

var reg = new RegExp("^" + value + "|\\|" + value, 'gi');    
   var searchResult = []; 
   for (var i = 0, n = Vcity.allCity.length; i ' + match[1] + '' + match[2] + ''; 
     } else { 
      str = '

' + match[1] + '' + match[2] + '

'; } searchResult.push(str); } }

/* * 
 * ---------------------------------------- * 
 * 城市选择组件 v1.0 
 * Author: VVG 
 * QQ: 83816819 
 * Mail: mysheller@163.com 
 * http://www.cnblogs.com/NNUF/ 
 * ---------------------------------------- * 
 * Date: 2012-07-10 
 * ---------------------------------------- * 
 * */ 
 
/* * 
 * 全局空间 Vcity 
 * */ 
var Vcity = {}; 
/* * 
 * 静态方法集 
 * @name _m 
 * */ 
Vcity._m = { 
 /* 选择元素 */ 
 $:function (arg, context) { 
  var tagAll, n, eles = [], i, sub = arg.substring(1); 
  context = context || document; 
  if (typeof arg == 'string') { 
   switch (arg.charAt(0)) { 
    case '#': 
     return document.getElementById(sub); 
     break; 
    case '.': 
     if (context.getElementsByClassName) return context.getElementsByClassName(sub); 
     tagAll = Vcity._m.$('*', context); 
     n = tagAll.length; 
     for (i = 0; i  -1) eles.push(tagAll[i]); 
     } 
     return eles; 
     break; 
    default: 
     return context.getElementsByTagName(arg); 
     break; 
   } 
  } 
 }, 
 
 /* 绑定事件 */ 
 on:function (node, type, handler) { 
  node.addEventListener ? node.addEventListener(type, handler, false) : node.attachEvent('on' + type, handler); 
 }, 
 
 /* 获取事件 */ 
 getEvent:function(event){ 
  return event || window.event; 
 }, 
 
 /* 获取事件目标 */ 
 getTarget:function(event){ 
  return event.target || event.srcElement; 
 }, 
 
 /* 获取元素位置 */ 
 getPos:function (node) { 
  var scrollx = document.documentElement.scrollLeft || document.body.scrollLeft, 
   scrollt = document.documentElement.scrollTop || document.body.scrollTop; 
  var pos = node.getBoundingClientRect(); 
  return {top:pos.top + scrollt, right:pos.right + scrollx, bottom:pos.bottom + scrollt, left:pos.left + scrollx } 
 }, 
 
 /* 添加样式名 */ 
 addClass:function (c, node) { 
  if(!node)return; 
  node.className = Vcity._m.hasClass(c,node) ? node.className : node.className + ' ' + c ; 
 }, 
 
 /* 移除样式名 */ 
 removeClass:function (c, node) { 
  var reg = new RegExp("(^|\\s+)" + c + "(\\s+|$)", "g"); 
  if(!Vcity._m.hasClass(c,node))return; 
  node.className = reg.test(node.className) ? node.className.replace(reg, '') : node.className; 
 }, 
 
 /* 是否含有CLASS */ 
 hasClass:function (c, node) { 
  if(!node || !node.className)return false; 
  return node.className.indexOf(c)>-1; 
 }, 
 
 /* 阻止冒泡 */ 
 stopPropagation:function (event) { 
  event = event || window.event; 
  event.stopPropagation ? event.stopPropagation() : event.cancelBubble = true; 
 }, 
 /* 去除两端空格 */ 
 trim:function (str) { 
  return str.replace(/^\s+|\s+$/g,''); 
 } 
}; 
 
/* 所有城市数据,可以按照格式自行添加（北京|beijing|bj），前16条为热门城市 */ 
 
Vcity.allCity = ['北京|beijing|bj','上海|shanghai|sh', '重庆|chongqing|cq', '深圳|shenzhen|sz', '广州|guangzhou|gz', '杭州|hangzhou|hz', 
 '南京|nanjing|nj', '苏州|shuzhou|sz', '天津|tianjin|tj', '成都|chengdu|cd', '南昌|nanchang|nc', '三亚|sanya|sy','青岛|qingdao|qd', 
 '厦门|xiamen|xm', '西安|xian|xa','长沙|changsha|cs','合肥|hefei|hf','西藏|xizang|xz', '内蒙古|neimenggu|nmg', '安庆|anqing|aq', '阿泰勒|ataile|atl', '安康|ankang|ak', 
 '阿克苏|akesu|aks', '包头|baotou|bt', '北海|beihai|bh', '百色|baise|bs','保山|baoshan|bs', '长治|changzhi|cz', '长春|changchun|cc', '常州|changzhou|cz', '昌都|changdu|cd', 
 '朝阳|chaoyang|cy', '常德|changde|cd', '长白山|changbaishan|cbs', '赤峰|chifeng|cf', '大同|datong|dt', '大连|dalian|dl', '达县|daxian|dx', '东营|dongying|dy', '大庆|daqing|dq', '丹东|dandong|dd', 
 '大理|dali|dl', '敦煌|dunhuang|dh', '鄂尔多斯|eerduosi|eeds', '恩施|enshi|es', '福州|fuzhou|fz', '阜阳|fuyang|fy', '贵阳|guiyang|gy', 
 '桂林|guilin|gl', '广元|guangyuan|gy', '格尔木|geermu|gem', '呼和浩特|huhehaote|hhht', '哈密|hami|hm', 
 '黑河|heihe|hh', '海拉尔|hailaer|hle', '哈尔滨|haerbin|heb', '海口|haikou|hk', '黄山|huangshan|hs', '邯郸|handan|hd', 
 '汉中|hanzhong|hz', '和田|hetian|ht', '晋江|jinjiang|jj', '锦州|jinzhou|jz', '景德镇|jingdezhen|jdz', 
 '嘉峪关|jiayuguan|jyg', '井冈山|jinggangshan|jgs', '济宁|jining|jn', '九江|jiujiang|jj', '佳木斯|jiamusi|jms', '济南|jinan|jn', 
 '喀什|kashi|ks', '昆明|kunming|km', '康定|kangding|kd', '克拉玛依|kelamayi|klmy', '库尔勒|kuerle|kel', '库车|kuche|kc', '兰州|lanzhou|lz', 
 '洛阳|luoyang|ly', '丽江|lijiang|lj', '林芝|linzhi|lz', '柳州|liuzhou|lz', '泸州|luzhou|lz', '连云港|lianyungang|lyg', '黎平|liping|lp', 
 '连成|liancheng|lc', '拉萨|lasa|ls', '临沧|lincang|lc', '临沂|linyi|ly', '芒市|mangshi|ms', '牡丹江|mudanjiang|mdj', '满洲里|manzhouli|mzl', '绵阳|mianyang|my', 
 '梅县|meixian|mx', '漠河|mohe|mh', '南充|nanchong|nc', '南宁|nanning|nn', '南阳|nanyang|ny', '南通|nantong|nt', '那拉提|nalati|nlt', 
 '宁波|ningbo|nb', '攀枝花|panzhihua|pzh', '衢州|quzhou|qz', '秦皇岛|qinhuangdao|qhd', '庆阳|qingyang|qy', '齐齐哈尔|qiqihaer|qqhe', 
 '石家庄|shijiazhuang|sjz', '沈阳|shenyang|sy', '思茅|simao|sm', '铜仁|tongren|tr', '塔城|tacheng|tc', '腾冲|tengchong|tc', '台州|taizhou|tz', 
 '通辽|tongliao|tl', '太原|taiyuan|ty', '威海|weihai|wh', '梧州|wuzhou|wz', '文山|wenshan|ws', '无锡|wuxi|wx', '潍坊|weifang|wf', '武夷山|wuyishan|wys', '乌兰浩特|wulanhaote|wlht', 
 '温州|wenzhou|wz', '乌鲁木齐|wulumuqi|wlmq', '万州|wanzhou|wz', '乌海|wuhai|wh', '兴义|xingyi|xy', '西昌|xichang|xc', '襄樊|xiangfan|xf', 
 '西宁|xining|xn', '锡林浩特|xilinhaote|xlht', '西双版纳|xishuangbanna|xsbn', '徐州|xuzhou|xz', '义乌|yiwu|yw', '永州|yongzhou|yz', '榆林|yulin|yl', '延安|yanan|ya', '运城|yuncheng|yc', 
 '烟台|yantai|yt', '银川|yinchuan|yc', '宜昌|yichang|yc', '宜宾|yibin|yb', '盐城|yancheng|yc', '延吉|yanji|yj', '玉树|yushu|ys', '伊宁|yining|yn', '珠海|zhuhai|zh', '昭通|zhaotong|zt', 
 '张家界|zhangjiajie|zjj', '舟山|zhoushan|zs', '郑州|zhengzhou|zz', '中卫|zhongwei|zw', '芷江|zhijiang|zj', '湛江|zhanjiang|zj']; 
 
/* 正则表达式 筛选中文城市名、拼音、首字母 */ 
 
Vcity.regEx = /^([\u4E00-\u9FA5\uf900-\ufa2d]+)\|(\w+)\|(\w)\w*$/i; 
Vcity.regExChiese = /([\u4E00-\u9FA5\uf900-\ufa2d]+)/; 
 
/* * 
 * 格式化城市数组为对象oCity，按照a-h,i-p,q-z,hot热门城市分组： 
 * {HOT:{hot:[]},ABCDEFGH:{a:[1,2,3],b:[1,2,3]},IJKLMNOP:{i:[1.2.3],j:[1,2,3]},QRSTUVWXYZ:{}} 
 * */ 
 
(function () { 
 var citys = Vcity.allCity, match, letter, 
  regEx = Vcity.regEx, 
  reg2 = /^[a-h]$/i, reg3 = /^[i-p]$/i, reg4 = /^[q-z]$/i; 
 if (!Vcity.oCity) { 
  Vcity.oCity = {hot:{},ABCDEFGH:{}, IJKLMNOP:{}, QRSTUVWXYZ:{}}; 
  //console.log(citys.length); 
  for (var i = 0, n = citys.length; i 热门城市(支持汉字/拼音)', 
 '

', '
• 热门城市
', '
• ABCDEFGH
', '
• IJKLMNOP
', '
• QRSTUVWXYZ
', '

' ]; /* * * 城市控件构造函数 * @CitySelector * */ Vcity.CitySelector = function () { this.initialize.apply(this, arguments); }; Vcity.CitySelector.prototype = { constructor:Vcity.CitySelector, /* 初始化 */ initialize :function (options) { var input = options.input; this.input = Vcity._m.$('#'+ input); this.inputEvent(); }, /* * * @createWarp * 创建城市BOX HTML 框架 * */ createWarp:function(){ var inputPos = Vcity._m.getPos(this.input); var div = this.rootDiv = document.createElement('div'); var that = this; // 设置DIV阻止冒泡 Vcity._m.on(this.rootDiv,'click',function(event){ Vcity._m.stopPropagation(event); }); // 设置点击文档隐藏弹出的城市选择框 Vcity._m.on(document, 'click', function (event) { event = Vcity._m.getEvent(event); var target = Vcity._m.getTarget(event); if(target == that.input) return false; //console.log(target.className); if (that.cityBox)Vcity._m.addClass('hide', that.cityBox); if (that.ul)Vcity._m.addClass('hide', that.ul); if(that.myIframe)Vcity._m.addClass('hide',that.myIframe); }); div.className = 'citySelector'; div.style.position = 'absolute'; div.style.left = inputPos.left + 'px'; div.style.top = inputPos.bottom + 'px'; div.style.zIndex = 999999; // 判断是否IE6，如果是IE6需要添加iframe才能遮住SELECT框 var isIe = (document.all) ? true : false; var isIE6 = this.isIE6 = isIe && !window.XMLHttpRequest; if(isIE6){ var myIframe = this.myIframe = document.createElement('iframe'); myIframe.frameborder = '0'; myIframe.src = 'about:blank'; myIframe.style.position = 'absolute'; myIframe.style.zIndex = '-1'; this.rootDiv.appendChild(this.myIframe); } var childdiv = this.cityBox = document.createElement('div'); childdiv.className = 'cityBox'; childdiv.id = 'cityBox'; childdiv.innerHTML = Vcity._template.join(''); var hotCity = this.hotCity = document.createElement('div'); hotCity.className = 'hotCity'; childdiv.appendChild(hotCity); div.appendChild(childdiv); this.createHotCity(); }, /* * * @createHotCity * TAB下面DIV：hot,a-h,i-p,q-z 分类HTML生成，DOM操作 * {HOT:{hot:[]},ABCDEFGH:{a:[1,2,3],b:[1,2,3]},IJKLMNOP:{},QRSTUVWXYZ:{}} **/ createHotCity:function(){ var odiv,odl,odt,odd,odda=[],str,key,ckey,sortKey,regEx = Vcity.regEx, oCity = Vcity.oCity; for(key in oCity){ odiv = this[key] = document.createElement('div'); // 先设置全部隐藏hide odiv.className = key + ' ' + 'cityTab hide'; sortKey=[]; for(ckey in oCity[key]){ sortKey.push(ckey); // ckey按照ABCDEDG顺序排序 sortKey.sort(); } for(var j=0,k = sortKey.length;j'; odda.push(str); } odd.innerHTML = odda.join(''); odl.appendChild(odt); odl.appendChild(odd); odiv.appendChild(odl); } // 移除热门城市的隐藏CSS Vcity._m.removeClass('hide',this.hot); this.hotCity.appendChild(odiv); } document.body.appendChild(this.rootDiv); /* IE6 */ this.changeIframe(); this.tabChange(); this.linkEvent(); }, /* * * tab按字母顺序切换 * @ tabChange * */ tabChange:function(){ var lis = Vcity._m.$('li',this.cityBox); var divs = Vcity._m.$('div',this.hotCity); var that = this; for(var i=0,n=lis.length;i' + match[2] + ''; } else { str = '

' + match[1] + '' + match[2] + '

'; } searchResult.push(str); } } this.isEmpty = false; // 如果搜索数据为空 if (searchResult.length == 0) { this.isEmpty = true; str = '

对不起，没有找到数据 "' + value + '"

'; searchResult.push(str); } // 如果slideul不存在则添加ul if (!this.ul) { var ul = this.ul = document.createElement('ul'); ul.className = 'cityslide'; this.rootDiv && this.rootDiv.appendChild(ul); // 记录按键次数，方向键 this.count = 0; } else if (this.ul && Vcity._m.hasClass('hide', this.ul)) { this.count = 0; Vcity._m.removeClass('hide', this.ul); } this.ul.innerHTML = searchResult.join(''); /* IE6 */ this.changeIframe(); // 绑定Li事件 this.liEvent(); }else{ Vcity._m.addClass('hide',this.ul); Vcity._m.removeClass('hide',this.cityBox); Vcity._m.removeClass('hide',this.myIframe); this.changeIframe(); } }, /* IE6的改变遮罩SELECT 的 IFRAME尺寸大小 */ changeIframe:function(){ if(!this.isIE6)return; this.myIframe.style.width = this.rootDiv.offsetWidth + 'px'; this.myIframe.style.height = this.rootDiv.offsetHeight + 'px'; }, /* * * 特定键盘事件，上、下、Enter键 * @ KeyboardEvent * */ KeyboardEvent:function(event,keycode){ var lis = Vcity._m.$('li',this.ul); var len = lis.length; switch(keycode){ case 40: //向下箭头↓ this.count++; if(this.count > len-1) this.count = 0; for(var i=0;i