jquery自动完成(ajax)（ZZ）
根据 jquery自动完成(ajax)在126行（他原先说199行，可能是版本不一样？）加了.bind("input", function() {
// @hack by liqt:support for inputingchinese charactersin firefox
onChange(0, true);
});
调用：
$(document).ready(function() {
$("#keyword").autocomplete(serv_url);
});
暂时注释掉，在IE里显示不正常
if ($.browser.msie) { // we put a styled iframe behind the calendar so HTML SELECT elements don't show through//$results.append(document.createElement('iframe'));}
float=right 的内容要写在前面
<li><span style="float:right">def</span>abc</li>
A jQuery autocompleter
/* * jQuery Autocomplete plugin * * Copyright (c) 2009 Dylan Verheul * */jQuery.autocomplete = function(input, options) {// Create a link to selfvar me = this;// Create jQuery object for input elementvar $input = $(input).attr("autocomplete", "off");// Apply inputClass if necessaryif (options.inputClass) {$input.addClass(options.inputClass);}// Create resultsvar results = document.createElement("div");// Create jQuery object for results// var $results = $(results);var $results = $(results).hide().addClass(options.resultsClass).css("position", "absolute");if( options.width > 0 ) {$results.css("width", options.width);}// Add to body element$("body").append(results);input.autocompleter = me;var timeout = null;var prev = "";var active = -1;var cache = {};var keyb = false;var hasFocus = false;var lastKeyPressCode = null;var mouseDownOnSelect = false;var hidingResults = false;// flush cachefunction flushCache(){cache = {};cache.data = {};cache.length = 0;};// flush cacheflushCache();// if there is a data array suppliedif( options.data != null ){var sFirstChar = "", stMatchSets = {}, row = [];// no url was specified, we need to adjust the cache length to make sure it fits the local data storeif( typeof options.url != "string" ) {options.cacheLength = 1;}// loop through the array and create a lookup structurefor( var i=0; i < options.data.length; i++ ){// if row is a string, make an array otherwise just reference the arrayrow = ((typeof options.data == "string") ? ] : options.data);// if the length is zero, don't add to listif( row.length > 0 ){// get the first charactersFirstChar = row.substring(0, 1).toLowerCase();// if no lookup array for this character exists, look it up nowif( !stMatchSets ) stMatchSets = [];// if the match is a stringstMatchSets.push(row);}}// add the data items to the cachefor( var k in stMatchSets ) {// increase the cache sizeoptions.cacheLength++;// add to the cacheaddToCache(k, stMatchSets);}}$input.keydown(function(e) {// track last key pressedlastKeyPressCode = e.keyCode;switch(e.keyCode) {case 38: // upe.preventDefault();moveSelect(-1);break;case 40: // downe.preventDefault();moveSelect(1);break;case 9:// tabcase 13: // returnif( selectCurrent() ){// make sure to blur off the current field$input.get(0).blur();e.preventDefault();}break;default:active = -1;if (timeout) clearTimeout(timeout);timeout = setTimeout(function(){onChange();}, options.delay);break;}}).focus(function(){// track whether the field has focus, we shouldn't process any results if the field no longer has focushasFocus = true;}).blur(function() {// track whether the field has focushasFocus = false;if (!mouseDownOnSelect) {hideResults();}}).bind("input",function() { // @hack by liqt:support for inputingchinese charactersin firefox onChange(0, true);});hideResultsNow();function onChange() {// ignore if the following keys are pressed: if( lastKeyPressCode == 46 || (lastKeyPressCode > 8 && lastKeyPressCode < 32) ) return $results.hide();var v = $input.val();if (v == prev) return;prev = v;if (v.length >= options.minChars) {$input.addClass(options.loadingClass);requestData(v);} else {$input.removeClass(options.loadingClass);$results.hide();}}; function moveSelect(step) {var lis = $("li", results);if (!lis) return;active += step;if (active < 0) {active = 0;} else if (active >= lis.size()) {active = lis.size() - 1;}lis.removeClass("ac_over");$(lis).addClass("ac_over");// Weird behaviour in IE// if (lis && lis.scrollIntoView) {// lis.scrollIntoView(false);// }};function selectCurrent() {var li = $("li.ac_over", results);if (!li) {var $li = $("li", results);if (options.selectOnly) {if ($li.length == 1) li = $li;} else if (options.selectFirst) {li = $li;}}if (li) {selectItem(li);return true;} else {return false;}};function selectItem(li) {if (!li) {li = document.createElement("li");li.extra = [];li.selectValue = "";}var v = $.trim(li.selectValue ? li.selectValue : li.innerHTML);input.lastSelected = v;prev = v;$results.html("");$input.val(v);hideResultsNow();if (options.onItemSelect) {setTimeout(function() { options.onItemSelect(li) }, 1);}};// selects a portion of the input stringfunction createSelection(start, end){// get a reference to the input elementvar field = $input.get(0);if( field.createTextRange ){var selRange = field.createTextRange();selRange.collapse(true);selRange.moveStart("character", start);selRange.moveEnd("character", end);selRange.select();} else if( field.setSelectionRange ){field.setSelectionRange(start, end);} else {if( field.selectionStart ){field.selectionStart = start;field.selectionEnd = end;}}field.focus();};// fills in the input box w/the first match (assumed to be the best match)function autoFill(sValue){// if the last user key pressed was backspace, don't autofillif( lastKeyPressCode != 8 ){// fill in the value (keep the case the user has typed)$input.val($input.val() + sValue.substring(prev.length));// select the portion of the value not typed by the user (so the next character will erase)createSelection(prev.length, sValue.length);}};function showResults() {// get the position of the input field right now (in case the DOM is shifted)var pos = findPos(input);// either use the specified width, or autocalculate based on form elementvar iWidth = (options.width > 0) ? options.width : $input.width();// reposition$results.css({width: parseInt(iWidth) + "px",top: (pos.y + input.offsetHeight) + "px",left: pos.x + "px"}).show();};function hideResults() {if (timeout) clearTimeout(timeout);timeout = setTimeout(hideResultsNow, 200);};function hideResultsNow() {if (hidingResults) {return;}hidingResults = true;if (timeout) {clearTimeout(timeout);}var v = $input.removeClass(options.loadingClass).val();if ($results.is(":visible")) {$results.hide();}if (options.mustMatch) {if (!input.lastSelected || input.lastSelected != v) {selectItem(null);}}hidingResults = false;};function receiveData(q, data) {if (data) {$input.removeClass(options.loadingClass);results.innerHTML = "";// if the field no longer has focus or if there are no matches, do not display the drop downif( !hasFocus || data.length == 0 ) return hideResultsNow();if ($.browser.msie) {// we put a styled iframe behind the calendar so HTML SELECT elements don't show through$results.append(document.createElement('iframe'));}results.appendChild(dataToDom(data));// autofill in the complete box w/the first match as long as the user hasn't entered in more dataif( options.autoFill && ($input.val().toLowerCase() == q.toLowerCase()) ) autoFill(data);showResults();} else {hideResultsNow();}};function parseData(data) {if (!data) return null;var parsed = [];var rows = data.split(options.lineSeparator);for (var i=0; i < rows.length; i++) {var row = $.trim(rows);if (row) {parsed = row.split(options.cellSeparator);}}return parsed;};function dataToDom(data) {var ul = document.createElement("ul");var num = data.length;// limited results to a max numberif( (options.maxItemsToShow > 0) && (options.maxItemsToShow < num) ) num = options.maxItemsToShow;for (var i=0; i < num; i++) {var row = data;if (!row) continue;var li = document.createElement("li");if (options.formatItem) {li.innerHTML = options.formatItem(row, i, num);li.selectValue = row;} else {li.innerHTML = row;li.selectValue = row;}var extra = null;if (row.length > 1) {extra = [];for (var j=1; j < row.length; j++) {extra = row;}}li.extra = extra;ul.appendChild(li);$(li).hover(function() { $("li", ul).removeClass("ac_over"); $(this).addClass("ac_over"); active = $("li", ul).indexOf($(this).get(0)); },function() { $(this).removeClass("ac_over"); }).click(function(e) { e.preventDefault();e.stopPropagation();selectItem(this)});}$(ul).mousedown(function() {mouseDownOnSelect = true;}).mouseup(function() {mouseDownOnSelect = false;});return ul;};function requestData(q) {if (!options.matchCase) q = q.toLowerCase();var data = options.cacheLength ? loadFromCache(q) : null;// recieve the cached dataif (data) {receiveData(q, data);// if an AJAX url has been supplied, try loading the data now} else if( (typeof options.url == "string") && (options.url.length > 0) ){$.get(makeUrl(q), function(data) {data = parseData(data);addToCache(q, data);receiveData(q, data);});// if there's been no data found, remove the loading class} else {$input.removeClass(options.loadingClass);}};function makeUrl(q) {var sep = options.url.indexOf('?') == -1 ? '?' : '&'; var url = options.url + sep + "q=" + encodeURI(q);for (var i in options.extraParams) {url += "&" + i + "=" + encodeURI(options.extraParams);}return url;};function loadFromCache(q) {if (!q) return null;if (cache.data) return cache.data;if (options.matchSubset) {for (var i = q.length - 1; i >= options.minChars; i--) {var qs = q.substr(0, i);var c = cache.data;if (c) {var csub = [];for (var j = 0; j < c.length; j++) {var x = c;var x0 = x;if (matchSubset(x0, q)) {csub = x;}}return csub;}}}return null;};function matchSubset(s, sub) {if (!options.matchCase) s = s.toLowerCase();var i = s.indexOf(sub);if (i == -1) return false;return i == 0 || options.matchContains;};this.flushCache = function() {flushCache();};this.setExtraParams = function(p) {options.extraParams = p;};this.findValue = function(){var q = $input.val();if (!options.matchCase) q = q.toLowerCase();var data = options.cacheLength ? loadFromCache(q) : null;if (data) {findValueCallback(q, data);} else if( (typeof options.url == "string") && (options.url.length > 0) ){$.get(makeUrl(q), function(data) {data = parseData(data)addToCache(q, data);findValueCallback(q, data);});} else {// no matchesfindValueCallback(q, null);}}function findValueCallback(q, data){if (data) $input.removeClass(options.loadingClass);var num = (data) ? data.length : 0;var li = null;for (var i=0; i < num; i++) {var row = data;if( row.toLowerCase() == q.toLowerCase() ){li = document.createElement("li");if (options.formatItem) {li.innerHTML = options.formatItem(row, i, num);li.selectValue = row;} else {li.innerHTML = row;li.selectValue = row;}var extra = null;if( row.length > 1 ){extra = [];for (var j=1; j < row.length; j++) {extra = row;}}li.extra = extra;}}if( options.onFindValue ) setTimeout(function() { options.onFindValue(li) }, 1);}function addToCache(q, data) {if (!data || !q || !options.cacheLength) return;if (!cache.length || cache.length > options.cacheLength) {flushCache();cache.length++;} else if (!cache) {cache.length++;}cache.data = data;};function findPos(obj) {var curleft = obj.offsetLeft || 0;var curtop = obj.offsetTop || 0;while (obj = obj.offsetParent) {curleft += obj.offsetLeftcurtop += obj.offsetTop}return {x:curleft,y:curtop};}}jQuery.fn.autocomplete = function(url, options, data) {// Make sure options existsoptions = options || {};// Set url as optionoptions.url = url;// set some bulk local dataoptions.data = ((typeof data == "object") && (data.constructor == Array)) ? data : null;// Set default values for required optionsoptions = $.extend({inputClass: "ac_input",resultsClass: "ac_results",lineSeparator: "\n",cellSeparator: "|",minChars: 1,delay: 400,matchCase: 0,matchSubset: 1,matchContains: 0,cacheLength: 1,mustMatch: 0,extraParams: {},loadingClass: "ac_loading",selectFirst: false,selectOnly: false,maxItemsToShow: -1,autoFill: false,width: 0}, options);options.width = parseInt(options.width, 10);this.each(function() {var input = this;new jQuery.autocomplete(input, options);});// Don't break the chainreturn this;}jQuery.fn.autocompleteArray = function(data, options) {return this.autocomplete(null, options, data);}jQuery.fn.indexOf = function(e){for( var i=0; i<this.length; i++ ){if( this == e ) return i;}return -1;};
页:
[1]