251 lines
6.7 KiB
JavaScript
251 lines
6.7 KiB
JavaScript
(function($) {
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$.suggest = function(input, options) {
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var $input = $(input).attr("autocomplete", "off");
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var $results;
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var timeout = false; // hold timeout ID for suggestion results to appear
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var prevLength = 0; // last recorded length of $input.val()
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var cache = []; // cache MRU list
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var cacheSize = 0; // size of cache in chars (bytes?)
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//if($.trim($input.val())=='' || $.trim($input.val())=='中文/拼音') $input.val('中文/拼音').css('color','#aaa');
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if( ! options.attachObject )
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options.attachObject = $(document.createElement("ul")).appendTo('body');
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$results = $(options.attachObject);
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$results.addClass(options.resultsClass);
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resetPosition();
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$(window)
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.load(resetPosition) // just in case user is changing size of page while loading
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.resize(resetPosition);
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$input.blur(function() {
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setTimeout(function() { $results.hide() }, 200);
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});
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$input.focus(function(){
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//if($.trim($(this).val())=='中文/拼音'){
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//$(this).val('').css('color','#000');
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//}
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if($.trim($(this).val())==''){
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displayItems('');//显示热门城市列表
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}
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});
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$input.click(function(){
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var q=$.trim($(this).val());
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displayItems(q);
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$(this).select();
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});
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// help IE users if possible
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try {
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$results.bgiframe();
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} catch(e) { }
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$input.keyup(processKey);//
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function resetPosition() {
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// requires jquery.dimension plugin
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var offset = $input.offset();
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$results.css({
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top: (offset.top + input.offsetHeight) + 'px',
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left: offset.left + 'px'
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});
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}
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function processKey(e) {
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// handling up/down/escape requires results to be visible
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// handling enter/tab requires that AND a result to be selected
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if ((/27$|38$|40$/.test(e.keyCode) && $results.is(':visible')) ||
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(/^13$|^9$/.test(e.keyCode) && getCurrentResult())) {
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if (e.preventDefault)
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e.preventDefault();
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if (e.stopPropagation)
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e.stopPropagation();
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e.cancelBubble = true;
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e.returnValue = false;
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switch(e.keyCode) {
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case 38: // up
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prevResult();
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break;
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case 40: // down
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nextResult();
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break;
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case 13: // return
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selectCurrentResult();
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break;
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case 27: // escape
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$results.hide();
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break;
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}
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} else if ($input.val().length != prevLength) {
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if (timeout)
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clearTimeout(timeout);
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timeout = setTimeout(suggest, options.delay);
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prevLength = $input.val().length;
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}
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}
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function suggest() {
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var q = $.trim($input.val());
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displayItems(q);
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}
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function displayItems(items) {
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var html = '';
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if (items=='') {//热门城市遍历
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for(h in options.hot_list){
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html+='<li rel="'+options.hot_list[h][0]+'"><a href="#'+h+'"><span>'+options.hot_list[h][2]+'</span>'+options.hot_list[h][1]+'</a></li>';
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}
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html='<div class="gray ac_result_tip">请输入中文/拼音或者↑↓选择</div><ul>'+html+'</ul>';
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}
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else {
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/*if (!items)
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return;
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if (!items.length) {
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$results.hide();
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return;
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}*/
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for (var i = 0; i < options.source.length; i++) {//国内城市匹配
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var reg = new RegExp('^' + items + '.*$', 'im');
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if (reg.test(options.source[i][0]) || reg.test(options.source[i][1]) || reg.test(options.source[i][2]) || reg.test(options.source[i][3])) {
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html += '<li rel="' + options.source[i][0] + '"><a href="#' + i + '"><span>' + options.source[i][2] + '</span>' + options.source[i][1] + '</a></li>';
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}
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}
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//if (html == '') {
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//suggest_tip = '<div class="gray ac_result_tip">对不起，找不到：' + items + '</div>';
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//}
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//else {
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suggest_tip = '<div class="gray ac_result_tip">' + items + '，按拼音排序</div>';
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//}
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html = suggest_tip + '<ul>' + html + '</ul>';
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}
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$results.html(html).show();
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$results.children('ul').children('li:first-child').addClass(options.selectClass);
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$results.children('ul')
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.children('li')
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.mouseover(function() {
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$results.children('ul').children('li').removeClass(options.selectClass);
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$(this).addClass(options.selectClass);
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})
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.click(function(e) {
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e.preventDefault();
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e.stopPropagation();
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selectCurrentResult();
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});
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}
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function getCurrentResult() {
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if (!$results.is(':visible'))
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return false;
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var $currentResult = $results.children('ul').children('li.' + options.selectClass);
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if (!$currentResult.length)
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$currentResult = false;
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return $currentResult;
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}
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function selectCurrentResult() {
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$currentResult = getCurrentResult();
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if ($currentResult) {
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$input.val($currentResult.children('a').html().replace(/<span>.+?<\/span>/i,''));
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$results.hide();
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var dd=$input.val();
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dd=dd.replace("<span></span>","");
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dd=dd.replace("<SPAN></SPAN>","");
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$input.val(dd);
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if( $(options.dataContainer) ) {
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$(options.dataContainer).val($currentResult.attr('rel'));
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}
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if (options.onSelect) {
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options.onSelect.apply($input[0]);
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}
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}
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}
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function nextResult() {
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$currentResult = getCurrentResult();
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if ($currentResult)
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$currentResult
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.removeClass(options.selectClass)
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.next()
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.addClass(options.selectClass);
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else
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$results.children('ul').children('li:first-child').addClass(options.selectClass);
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}
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function prevResult() {
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$currentResult = getCurrentResult();
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if ($currentResult)
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$currentResult
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.removeClass(options.selectClass)
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.prev()
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.addClass(options.selectClass);
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else
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$results.children('ul').children('li:last-child').addClass(options.selectClass);
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}
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}
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$.fn.suggest = function(source, options) {
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if (!source)
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return;
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options = options || {};
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options.source = source;
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options.hot_list=options.hot_list || [];
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options.delay = options.delay || 0;
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options.resultsClass = options.resultsClass || 'ac_results';
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options.selectClass = options.selectClass || 'ac_over';
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options.matchClass = options.matchClass || 'ac_match';
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options.minchars = options.minchars || 1;
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options.delimiter = options.delimiter || '\n';
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options.onSelect = options.onSelect || false;
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options.dataDelimiter = options.dataDelimiter || '\t';
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options.dataContainer = options.dataContainer || '#SuggestResult';
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options.attachObject = options.attachObject || null;
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this.each(function() {
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new $.suggest(this, options);
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});
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return this;
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};
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})(jQuery); |