var Vcity = {};
Vcity._m = {
$:function (arg, context) {
var tagAll, n, eles = [], i, sub = arg.substring(1);
context = context || document;
if (typeof arg == 'string') {
switch (arg.charAt(0)) {
case '#':
return document.getElementById(sub);
break;
case '.':
if (context.getElementsByClassName) return context.getElementsByClassName(sub);
tagAll = Vcity._m.$('*', context);
n = tagAll.length;
for (i = 0; i < n; i++) {
if (tagAll[i].className.indexOf(sub) > -1) eles.push(tagAll[i]);
}
return eles;
break;
default:
return context.getElementsByTagName(arg);
break;
}
}
},
on:function (node, type, handler) {
node.addEventListener ? node.addEventListener(type, handler, false) : node.attachEvent('on' + type, handler);
},
getEvent:function(event){
return event || window.event;
},
getTarget:function(event){
return event.target || event.srcElement;
},
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 }
},
addClass:function (c, node) {
if(!node)return;
node.className = Vcity._m.hasClass(c,node) ? node.className : node.className + ' ' + c ;
},
removeClass:function (c, node) {
var reg = new RegExp("(^|\\s+)" + c + "(\\s+|$)", "g");
if(!Vcity._m.hasClass(c,node))return;
node.className = reg.test(node.className) ? node.className.replace(reg, '') : node.className;
},
hasClass:function (c, node) {
if(!node || !node.className)return false;
return node.className.indexOf(c)>-1;
},
stopPropagation:function (event) {
event = event || window.event;
event.stopPropagation ? event.stopPropagation() : event.cancelBubble = true;
},
trim:function (str) {
return str.replace(/^\s+|\s+$/g,'');
}
};
Vcity.regEx = /^([\u4E00-\u9FA5\uf900-\ufa2d]+)\|(\w+)\|(\w)\w*\|(\d+)$/i;
Vcity.regExChiese = /([\u4E00-\u9FA5\uf900-\ufa2d]+)/;
function adapterCity (citylist,hotStr) {
if(!citylist){
return;
}
var citys = citylist;
var match;
var letter;
var regEx = Vcity.regEx,
reg2 = /^[a]$/i, reg3 = /^[b]$/i, reg4 = /^[c]$/i;
reg5 = /^[d]$/i, reg6 = /^[e]$/i, reg7 = /^[f]$/i;
reg8 = /^[g]$/i, reg9 = /^[h]$/i, reg10 = /^[i]$/i;
reg11 = /^[j]$/i, reg12 = /^[k]$/i, reg13 = /^[l]$/i;
reg14 = /^[m]$/i, reg15 = /^[n]$/i, reg16 = /^[o]$/i;
reg17 = /^[p]$/i, reg18 = /^[q]$/i, reg19 = /^[r]$/i;
reg20 = /^[s]$/i, reg21 = /^[t]$/i, reg22 = /^[u]$/i;
reg23 = /^[v]$/i, reg24 = /^[w]$/i, reg25 = /^[x]$/i;
reg26 = /^[y]$/i, reg27 = /^[z]$/i;
Vcity.oCity = {hot:{},A:{},B:{},C:{},D:{},E:{},F:{},G:{},H:{}, I:{},J:{},K:{},L:{},M:{},N:{},O:{},P:{}, Q:{},R:{},S:{},T:{},U:{},V:{},W:{},X:{},Y:{},Z:{}};
for (var i = 0; i < citys.length; i++) {
match = regEx.exec(citys[i]);
letter = match[3].toUpperCase();
if (reg2.test(letter)) {
if (!Vcity.oCity.A[letter]) Vcity.oCity.A[letter] = [];
Vcity.oCity.A[letter].push(match[1]);
} else if (reg3.test(letter)) {
if (!Vcity.oCity.B[letter]) Vcity.oCity.B[letter] = [];
Vcity.oCity.B[letter].push(match[1]);
} else if (reg4.test(letter)) {
if (!Vcity.oCity.C[letter]) Vcity.oCity.C[letter] = [];
Vcity.oCity.C[letter].push(match[1]);
}else if (reg5.test(letter)) {
if (!Vcity.oCity.D[letter]) Vcity.oCity.D[letter] = [];
Vcity.oCity.D[letter].push(match[1]);
}else if (reg6.test(letter)) {
if (!Vcity.oCity.E[letter]) Vcity.oCity.E[letter] = [];
Vcity.oCity.E[letter].push(match[1]);
}else if (reg7.test(letter)) {
if (!Vcity.oCity.F[letter]) Vcity.oCity.F[letter] = [];
Vcity.oCity.F[letter].push(match[1]);
}else if (reg8.test(letter)) {
if (!Vcity.oCity.G[letter]) Vcity.oCity.G[letter] = [];
Vcity.oCity.G[letter].push(match[1]);
}else if (reg9.test(letter)) {
if (!Vcity.oCity.H[letter]) Vcity.oCity.H[letter] = [];
Vcity.oCity.H[letter].push(match[1]);
}else if (reg10.test(letter)) {
if (!Vcity.oCity.I[letter]) Vcity.oCity.I[letter] = [];
Vcity.oCity.I[letter].push(match[1]);
}else if (reg11.test(letter)) {
if (!Vcity.oCity.J[letter]) Vcity.oCity.J[letter] = [];
Vcity.oCity.J[letter].push(match[1]);
}else if (reg12.test(letter)) {
if (!Vcity.oCity.K[letter]) Vcity.oCity.K[letter] = [];
Vcity.oCity.K[letter].push(match[1]);
}else if (reg13.test(letter)) {
if (!Vcity.oCity.L[letter]) Vcity.oCity.L[letter] = [];
Vcity.oCity.L[letter].push(match[1]);
}else if (reg14.test(letter)) {
if (!Vcity.oCity.M[letter]) Vcity.oCity.M[letter] = [];
Vcity.oCity.M[letter].push(match[1]);
}else if (reg15.test(letter)) {
if (!Vcity.oCity.N[letter]) Vcity.oCity.N[letter] = [];
Vcity.oCity.N[letter].push(match[1]);
}else if (reg16.test(letter)) {
if (!Vcity.oCity.O[letter]) Vcity.oCity.O[letter] = [];
Vcity.oCity.O[letter].push(match[1]);
}else if (reg17.test(letter)) {
if (!Vcity.oCity.P[letter]) Vcity.oCity.P[letter] = [];
Vcity.oCity.P[letter].push(match[1]);
}else if (reg18.test(letter)) {
if (!Vcity.oCity.Q[letter]) Vcity.oCity.Q[letter] = [];
Vcity.oCity.Q[letter].push(match[1]);
}else if (reg19.test(letter)) {
if (!Vcity.oCity.R[letter]) Vcity.oCity.R[letter] = [];
Vcity.oCity.R[letter].push(match[1]);
}else if (reg20.test(letter)) {
if (!Vcity.oCity.S[letter]) Vcity.oCity.S[letter] = [];
Vcity.oCity.S[letter].push(match[1]);
}else if (reg21.test(letter)) {
if (!Vcity.oCity.T[letter]) Vcity.oCity.T[letter] = [];
Vcity.oCity.T[letter].push(match[1]);
}else if (reg22.test(letter)) {
if (!Vcity.oCity.U[letter]) Vcity.oCity.U[letter] = [];
Vcity.oCity.U[letter].push(match[1]);
}else if (reg23.test(letter)) {
if (!Vcity.oCity.V[letter]) Vcity.oCity.V[letter] = [];
Vcity.oCity.V[letter].push(match[1]);
}else if (reg24.test(letter)) {
if (!Vcity.oCity.W[letter]) Vcity.oCity.W[letter] = [];
Vcity.oCity.W[letter].push(match[1]);
}else if (reg25.test(letter)) {
if (!Vcity.oCity.X[letter]) Vcity.oCity.X[letter] = [];
Vcity.oCity.X[letter].push(match[1]);
}else if (reg26.test(letter)) {
if (!Vcity.oCity.Y[letter]) Vcity.oCity.Y[letter] = [];
Vcity.oCity.Y[letter].push(match[1]);
}else if (reg27.test(letter)) {
if (!Vcity.oCity.Z[letter]) Vcity.oCity.Z[letter] = [];
Vcity.oCity.Z[letter].push(match[1]);
}
if(!Vcity.oCity.hot['hot']) Vcity.oCity.hot['hot'] = hotStr;
}
};
Vcity._template = [
'<p class="tip">热门城市(支持汉字/拼音)</p>',
'<ul>',
'<li class="on">热门城市</li>',
'<li>A</li>',
'<li>B</li>',
'<li>C</li>',
'<li>D</li>',
'<li>E</li>',
'<li>F</li>',
'<li>G</li>',
'<li>H</li>',
'<li>I</li>',
'<li>J</li>',
'<li>K</li>',
'<li>L</li>',
'<li>M</li>',
'<li>N</li>',
'<li>O</li>',
'<li>P</li>',
'<li>Q</li>',
'<li>R</li>',
'<li>S</li>',
'<li>T</li>',
'<li>U</li>',
'<li>V</li>',
'<li>W</li>',
'<li>x</li>',
'<li>y</li>',
'<li>Z</li>',
'</ul>'
];
Vcity.CitySelector = function () {
this.initialize.apply(this, arguments);
};
Vcity.CitySelector.prototype = {
constructor:Vcity.CitySelector,
initialize :function (options,istr,hotStr) {
var input = options.input;
this.input = Vcity._m.$('#'+ input);
this.inputEvent(istr,hotStr);
},
createWarp:function(cwstr,hotStr){
var inputPos = Vcity._m.getPos(this.input);
var p = this.rootDiv = document.createElement('p');
var that = this;
Vcity._m.on(this.rootDiv,'click',function(event){
Vcity._m.stopPropagation(event);
});
Vcity._m.on(document, 'click', function (event) {
event = Vcity._m.getEvent(event);
var target = Vcity._m.getTarget(event);
if(target == that.input) return false;
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);
});
p.className = 'citySelector';
p.style.position = 'absolute';
p.style.left = inputPos.left + 'px';
p.style.top = inputPos.bottom + 'px';
p.style.zIndex = 999999;
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 childp = this.cityBox = document.createElement('p');
childp.className = 'cityBox';
childp.id = 'cityBox';
childp.innerHTML = Vcity._template.join('');
var hotCity = this.hotCity = document.createElement('p');
hotCity.className = 'hotCity';
childp.appendChild(hotCity);
p.appendChild(childp);
this.createHotCity(cwstr,hotStr);
},
createHotCity:function(chstr,hotStr){
adapterCity (chstr,hotStr);
var op,odl,odt,odd,odda=[],str,key,ckey,sortKey,regEx = Vcity.regEx,
oCity = Vcity.oCity;
for(key in oCity){
op = this[key] = document.createElement('p');
op.className = key + ' ' + 'cityTab hide';
sortKey=[];
for(ckey in oCity[key]){
sortKey.push(ckey);
sortKey.sort();
}
for(var j=0,k = sortKey.length;j<k;j++){
odl = document.createElement('dl');
odt = document.createElement('dt');
odd = document.createElement('dd');
odt.innerHTML = sortKey[j] == 'hot'?' ':sortKey[j];
odda = [];
for(var i=0,n=oCity[key][sortKey[j]].length;i<n;i++){
str = '<a href="javascript:">' + oCity[key][sortKey[j]][i] + '</a>';
odda.push(str);
}
odd.innerHTML = odda.join('');
odl.appendChild(odt);
odl.appendChild(odd);
op.appendChild(odl);
}
Vcity._m.removeClass('hide',this.hot);
this.hotCity.appendChild(op);
}
document.body.appendChild(this.rootDiv);
this.changeIframe();
this.tabChange();
this.linkEvent();
},
tabChange:function(){
var lis = Vcity._m.$('li',this.cityBox);
var ps = Vcity._m.$('p',this.hotCity);
var that = this;
for(var i=0,n=lis.length;i<n;i++){
lis[i].index = i;
lis[i].onclick = function(){
for(var j=0;j<n;j++){
Vcity._m.removeClass('on',lis[j]);
Vcity._m.addClass('hide',ps[j]);
}
Vcity._m.addClass('on',this);
Vcity._m.removeClass('hide',ps[this.index]);
that.changeIframe();
};
}
},
linkEvent:function(){
var links = Vcity._m.$('a',this.hotCity);
var that = this;
for(var i=0,n=links.length;i<n;i++){
links[i].onclick = function(){
that.input.value = this.innerHTML;
Vcity._m.addClass('hide',that.cityBox);
Vcity._m.addClass('hide',that.myIframe);
}
}
},
inputEvent:function(iestr,hotStr){
var that = this;
Vcity._m.on(this.input,'click',function(event){
event = event || window.event;
if(!that.cityBox){
that.createWarp(iestr,hotStr);
}else if(!!that.cityBox && Vcity._m.hasClass('hide',that.cityBox)){
if(!that.ul || (that.ul && Vcity._m.hasClass('hide',that.ul))){
Vcity._m.removeClass('hide',that.cityBox);
Vcity._m.removeClass('hide',that.myIframe);
that.changeIframe();
}
}
});
Vcity._m.on(this.input,'focus',function(){
that.input.select();
if(that.input.value == '城市名') that.input.value = '';
});
Vcity._m.on(this.input,'blur',function(){
if(that.input.value == '') that.input.value = '城市名';
});
Vcity._m.on(this.input,'keyup',function(event){
event = event || window.event;
var keycode = event.keyCode;
Vcity._m.addClass('hide',that.cityBox);
that.createUl(iestr);
Vcity._m.removeClass('hide',that.myIframe);
if(that.ul && !Vcity._m.hasClass('hide',that.ul) && !that.isEmpty){
that.KeyboardEvent(event,keycode);
}
});
},
createUl:function (iestr) {
if(!iestr){
return;
}
var str;
var value = Vcity._m.trim(this.input.value);
if (value !== '') {
var reg = new RegExp("^" + value + "|\\|" + value, 'gi');
var searchResult = [];
for (var i = 0; i < iestr.length; i++) {
if (reg.test(iestr[i])) {
var match = Vcity.regEx.exec(iestr[i]);
if (searchResult.length !== 0) {
str = '<li><b class="cityname">' + match[1] + '</b><b class="cityspell">' + match[2] + '</b></li>';
} else {
str = '<li class="on"><b class="cityname">' + match[1] + '</b><b class="cityspell">' + match[2] + '</b></li>';
}
searchResult.push(str);
}
}
this.isEmpty = false;
if (searchResult.length == 0) {
this.isEmpty = true;
str = '<li class="empty">对不起，没有找到数据 "<em>' + value + '</em>"</li>';
searchResult.push(str);
}
if (!this.ul) {
var ul = this.ul = document.createElement('ul');
ul.className = 'cityslide';
this.rootDiv && this.rootDiv.appendChild(ul);
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('');
this.changeIframe();
this.liEvent();
}else{
Vcity._m.addClass('hide',this.ul);
Vcity._m.removeClass('hide',this.cityBox);
Vcity._m.removeClass('hide',this.myIframe);
this.changeIframe();
}
},
changeIframe:function(){
if(!this.isIE6)return;
this.myIframe.style.width = this.rootDiv.offsetWidth + 'px';
this.myIframe.style.height = this.rootDiv.offsetHeight + 'px';
},
KeyboardEvent:function(event,keycode){
var lis = Vcity._m.$('li',this.ul);
var len = lis.length;
switch(keycode){
case 40:
this.count++;
if(this.count > len-1) this.count = 0;
for(var i=0;i<len;i++){
Vcity._m.removeClass('on',lis[i]);
}
Vcity._m.addClass('on',lis[this.count]);
break;
case 38:
this.count--;
if(this.count<0) this.count = len-1;
for(i=0;i<len;i++){
Vcity._m.removeClass('on',lis[i]);
}
Vcity._m.addClass('on',lis[this.count]);
break;
case 13:
this.input.value = Vcity.regExChiese.exec(lis[this.count].innerHTML)[0];
Vcity._m.addClass('hide',this.ul);
Vcity._m.addClass('hide',this.ul);
Vcity._m.addClass('hide',this.myIframe);
break;
default:
break;
}
},
liEvent:function(){
var that = this;
var lis = Vcity._m.$('li',this.ul);
for(var i = 0,n = lis.length;i < n;i++){
Vcity._m.on(lis[i],'click',function(event){
event = Vcity._m.getEvent(event);
var target = Vcity._m.getTarget(event);
that.input.value = Vcity.regExChiese.exec(target.innerHTML)[0];
Vcity._m.addClass('hide',that.ul);
Vcity._m.addClass('hide',that.myIframe);
});
Vcity._m.on(lis[i],'mouseover',function(event){
event = Vcity._m.getEvent(event);
var target = Vcity._m.getTarget(event);
Vcity._m.addClass('on',target);
});
Vcity._m.on(lis[i],'mouseout',function(event){
event = Vcity._m.getEvent(event);
var target = Vcity._m.getTarget(event);
Vcity._m.removeClass('on',target);
})
}
}
}
实现：
