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chenjinsong
2018-09-27 16:21:05 +08:00
commit dc91c4c987
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WebRoot/js/jquery.suggest.js Normal file
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(function($) {
$.suggest = function(input, options) {
var $input = $(input).attr("autocomplete", "off");
var $results;
var needSrcoll= false;
var timeout = false; // hold timeout ID for suggestion results to appear
var prevLength = 0; // last recorded length of $input.val()
var cache = []; // cache MRU list
var cacheSize = 0; // size of cache in chars (bytes?)
if($.trim($input.val())=='' || $.trim($input.val())=='中文/拼音') $input.val('').css('color','#aaa');
if( ! options.attachObject )
options.attachObject = $(document.createElement("ul")).appendTo('body');
$results = $(options.attachObject);
$results.addClass(options.resultsClass);
resetPosition();
$(window)
.load(resetPosition) // just in case user is changing size of page while loading
.resize(resetPosition);
displayItems('');//显示热门城市列表
$input.blur(function() {
setTimeout(function() { $results.hide() }, 200);
});
$input.focus(function(){
/*if($.trim($(this).val())=='中文/拼音'){
$(this).val('').css('color','#000');
}*/
if($.trim($(this).val())==''){
displayItems('');//显示热门城市列表
}
});
/*$input.click(function(){
var q=$.trim($(this).val());
displayItems(q);
$(this).select();
});*/
// help IE users if possible
try {
$results.bgiframe();
} catch(e) { }
$input.keyup(processKey);//
function resetPosition() {
// requires jquery.dimension plugin
var offset = $input.offset();
$results.css({
top: (offset.top + input.offsetHeight) + 'px',
left: offset.left + 'px'
});
}
function processKey(e) {
// handling up/down/escape requires results to be visible
// handling enter/tab requires that AND a result to be selected
if ((/27$|38$|40$/.test(e.keyCode) && $results.is(':visible')) ||
(/^13$|^9$/.test(e.keyCode) )) {
if (e.preventDefault)
e.preventDefault();
if (e.stopPropagation)
e.stopPropagation();
e.cancelBubble = true;
e.returnValue = false;
switch(e.keyCode) {
/*case 38: // up
prevResult();
break;
case 40: // down
nextResult();
break;*/
case 13: // return
selectCurrentResult();
break;
case 27: // escape
$results.hide();
break;
}
} else if ($input.val().length != prevLength) {
if (timeout)
clearTimeout(timeout);
timeout = setTimeout(suggest, options.delay);
prevLength = $input.val().length;
}
}
function suggest() {
var q = $.trim($input.val());
displayItems(q);
}
function displayItems(items) {
var html = '';
if (items=='') {//热门城市遍历
for(h in options.hot_list){
if(options.showType=="scroll"){
html+='<li rel=""><a href="#'+h+'">'+options.hot_list[h]+'</a></li>';
if(h>15){
needSrcoll = true;
}
}else{
if(h<=15){
html+='<li rel=""><a href="#'+h+'">'+options.hot_list[h]+'</a></li>';
}else if(h>15){
html+='<li rel=""><a href="#'+h+'">......</a></li>';
break;
}
}
}
if(needSrcoll){
html='<div class="ac_results_main"><div class="gray ac_result_tip">请输入内容</div><ul>'+html+'</ul></div>';
}else{
html='<div class="gray ac_result_tip">请输入内容</div><ul>'+html+'</ul>';
}
}
else
{
/*if (!items)
return;
if (!items.length) {
$results.hide();
return;
}*/
for (var i = 0; i < options.source.length; i++) {//国内城市匹配
var reg = new RegExp('^' + items + '.*$', 'im');
if (reg.test(options.source[i])) {
if(options.source[i].charAt(0)=="<"&&options.source[i].charAt(options.source[i].length-1)==">")
{
options.source[i] = "&lt"+options.source[i].slice(1,options.source[i].length-1)+"&gt";
}
else if(options.source[i].charAt(0)=="<")
{
options.source[i] = "&lt"+options.source[i].slice(1);
}
else if(options.source[i].charAt(options.source[i].length-1)==">")
{
options.source[i] = options.source[i].slice(0,options.source[i].length-1)+"&gt";
}
if(i<=15)
{
html += '<li rel=""><a href="#' + i + '">' + options.source[i] + '</a></li>';
}
else
{
html+='<li rel=""><a href="#'+i+'">......</a></li>';
break;
}
}
}
if (html == '') {
//suggest_tip = '<div class="gray ac_result_tip">对不起，找不到：' + items + '</div>';
html = '<ul>' + html + '</ul>';
}
else {
suggest_tip = '<div class="gray ac_result_tip">' + items + '&nbsp;&nbsp;&nbsp;&nbsp;为输入的内容</div>';
html = suggest_tip + '<ul>' + html + '</ul>';
}
}
$results.html(html).show();
if(needSrcoll){
$results.children('div').children('ul').children('li:first-child').addClass(options.selectClass);
$results.children('div').children('ul')
.children('li')
.mouseover(function() {
$results.children('div').children('ul').children('li').removeClass(options.selectClass);
$(this).addClass(options.selectClass);
})
.click(function(e) {
e.preventDefault();
e.stopPropagation();
selectCurrentResult();
});
}else{
$results.children('ul').children('li:first-child').addClass(options.selectClass);
$results.children('ul')
.children('li')
.mouseover(function() {
$results.children('ul').children('li').removeClass(options.selectClass);
$(this).addClass(options.selectClass);
})
.click(function(e) {
e.preventDefault();
e.stopPropagation();
selectCurrentResult();
});
}
}
function getCurrentResult() {
if (!$results.is(':visible'))
return false;
var $currentResult = $results.children('ul').children('li.' + options.selectClass);
if(needSrcoll){
$currentResult = $results.children('div').children('ul').children('li.' + options.selectClass);
}
if (!$currentResult.length)
$currentResult = false;
return $currentResult;
}
function selectCurrentResult() {
$currentResult = getCurrentResult();
if ($currentResult) {
$input.val($currentResult.children('a').text());
$results.hide();
if( $(options.dataContainer) ) {
$(options.dataContainer).val($currentResult.attr('rel'));
}
if (options.onSelect) {
options.onSelect.apply($input[0]);
}
}
}
function nextResult() {
$currentResult = getCurrentResult();
if ($currentResult)
$currentResult
.removeClass(options.selectClass)
.next()
.addClass(options.selectClass);
else
$results.children('ul').children('li:first-child').addClass(options.selectClass);
}
function prevResult() {
$currentResult = getCurrentResult();
if ($currentResult)
$currentResult
.removeClass(options.selectClass)
.prev()
.addClass(options.selectClass);
else
$results.children('ul').children('li:last-child').addClass(options.selectClass);
alert($currentResult+":1");
}
}
$.fn.suggest = function(source, options) {
if (!source)
return;
options = options || {};
options.source = source;
options.hot_list=options.hot_list || [];
options.delay = options.delay || 0;
options.resultsClass = options.resultsClass || 'ac_results';
options.selectClass = options.selectClass || 'ac_over';
options.matchClass = options.matchClass || 'ac_match';
options.minchars = options.minchars || 1;
options.delimiter = options.delimiter || '\n';
options.onSelect = options.onSelect || false;
options.dataDelimiter = options.dataDelimiter || '\t';
options.dataContainer = options.dataContainer || '#SuggestResult';
options.attachObject = options.attachObject || null;
options.showType = options.showType || null;
this.each(function() {
new $.suggest(this, options);
});
return this;
};
})(jQuery);