+++ /dev/null
-/*
- * jQuery autocomplete plugin
- * Version 2.0.0 (2008-03-22)
- * @requires jQuery v1.1.1+
- *
- * Dual licensed under the MIT and GPL licenses:
- * http://www.opensource.org/licenses/mit-license.php
- * http://www.gnu.org/licenses/gpl.html
- *
- * Dylan Verheul
- * http://www.dyve.net/jquery
- *
- */
-(function($) {
- /**
- * The autocompleter object
- */
- $.autocomplete = function(input, options) {
-
- // Create a link to self
- var me = this;
- // Create jQuery object for input element
- var $input = $(input).attr("autocomplete", "off");
- // Apply inputClass if necessary
- if (options.inputClass) {
- $input.addClass(options.inputClass);
- }
-
- // Create results
- var 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 cache
- function flushCache(){
- cache = {};
- cache.data = {};
- cache.length = 0;
- };
-
- // flush cache
- flushCache();
-
- // if there is a data array supplied
- if( 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 store
- if (typeof options.url != "string") {
- options.cacheLength = 1;
- }
-
- // loop through the array and create a lookup structure
- for( var i=0; i < options.data.length; i++ ){
- // if row is a string, make an array otherwise just reference the array
- row = ((typeof options.data[i] == "string") ? [options.data[i]] : options.data[i]);
-
- // if the length is zero, don't add to list
- if( row[0].length > 0 ){
- // get the first character
- sFirstChar = row[0].substring(0, 1).toLowerCase();
- // if no lookup array for this character exists, look it up now
- if( !stMatchSets[sFirstChar] ) stMatchSets[sFirstChar] = [];
- // if the match is a string
- stMatchSets[sFirstChar].push(row);
- }
- }
-
- // add the data items to the cache
- for (var k in stMatchSets) {
- // increase the cache size
- options.cacheLength++;
- // add to the cache
- addToCache(k, stMatchSets[k]);
- }
- }
-
- $input
- .keydown(function(e) {
- // track last key pressed
- lastKeyPressCode = e.keyCode;
- switch(e.keyCode) {
- case 38: // up
- e.preventDefault();
- moveSelect(-1);
- break;
- case 40: // down
- e.preventDefault();
- moveSelect(1);
- break;
- case 9: // tab
- case 13: // return
- if( selectCurrent() ){
- // make sure to blur off the current field
- $input.blur();
- e.preventDefault();
- // give focus with a small timeout (weird behaviour in FF)
- setTimeout(function() { $input.focus() }, 10);
- }
- break;
- default:
- active = -1;
- if (timeout) clearTimeout(timeout);
- timeout = setTimeout(onChange, options.delay);
- break;
- }
- })
- .focus(function(){
- // track whether the field has focus, we shouldn't process any results if the field no longer has focus
- hasFocus = true;
- })
- .blur(function() {
- // track whether the field has focus
- hasFocus = false;
- if (!mouseDownOnSelect) {
- hideResults();
- }
- });
-
- hideResultsNow();
-
- function onChange() {
- // ignore if the following keys are pressed: [del] [shift] [capslock]
- 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[active]).addClass("ac_over");
-
- // Weird behaviour in IE
- // if (lis[active] && lis[active].scrollIntoView) {
- // lis[active].scrollIntoView(false);
- // }
-
- };
-
- function selectCurrent() {
- var li = $("li.ac_over", results)[0];
- if (!li) {
- var $li = $("li", results);
- if (options.selectOnly) {
- if ($li.length == 1) li = $li[0];
- } else if (options.selectFirst) {
- li = $li[0];
- }
- }
- 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 string
- function createSelection(start, end){
- // get a reference to the input element
- var 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 autofill
- if( 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 element
- var 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) {
- $input.removeClass(options.loadingClass);
- results.innerHTML = "";
-
- // if the field no longer has focus or if there are no matches, do not display the drop down
- if( !hasFocus || data.length == 0 ) return hideResultsNow();
-
- if ($.browser.msie) {
- // we put a styled iframe behind the calendar so HTML SELECT elements don't show through
- $results.append(document.createElement('iframe'));
- }
- results.appendChild(dataToDom(data));
- // autofill in the complete box w/the first match as long as the user hasn't entered in more data
- if( options.autoFill && ($input.val().toLowerCase() == q.toLowerCase()) ) autoFill(data[0][0]);
- 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[i]);
- if (row) {
- parsed[parsed.length] = row.split(options.cellSeparator);
- }
- }
- return parsed;
- };
-
- function dataToDom(data) {
- var ul = document.createElement("ul");
- var num = data.length;
-
- // limited results to a max number
- if( (options.maxItemsToShow > 0) && (options.maxItemsToShow < num) ) num = options.maxItemsToShow;
-
- for (var i=0; i < num; i++) {
- var row = data[i];
- if (!row) continue;
- var li = document.createElement("li");
- if (options.formatItem) {
- li.innerHTML = options.formatItem(row, i, num);
- li.selectValue = row[0];
- } else {
- li.innerHTML = row[0];
- li.selectValue = row[0];
- }
- var extra = null;
- if (row.length > 1) {
- extra = [];
- for (var j=1; j < row.length; j++) {
- extra[extra.length] = row[j];
- }
- }
- li.extra = extra;
- ul.appendChild(li);
-
- $(li).hover(
- function() {
- var $this = $(this);
- active = $("li", ul).removeClass("ac_over").index($this[0]);
- $this.addClass("ac_over");
- },
- 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 data
- if (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[i]);
- }
- return url;
- };
-
- function loadFromCache(q) {
- if (!q) return null;
- if (cache.data[q]) return cache.data[q];
- if (options.matchSubset) {
- for (var i = q.length - 1; i >= options.minChars; i--) {
- var qs = q.substr(0, i);
- var c = cache.data[qs];
- if (c) {
- var csub = [];
- for (var j = 0; j < c.length; j++) {
- var x = c[j];
- var x0 = x[0];
- if (matchSubset(x0, q)) {
- csub[csub.length] = 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 matches
- findValueCallback(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[i];
-
- if( row[0].toLowerCase() == q.toLowerCase() ){
- li = document.createElement("li");
- if (options.formatItem) {
- li.innerHTML = options.formatItem(row, i, num);
- li.selectValue = row[0];
- } else {
- li.innerHTML = row[0];
- li.selectValue = row[0];
- }
- var extra = null;
- if( row.length > 1 ){
- extra = [];
- for (var j=1; j < row.length; j++) {
- extra[extra.length] = row[j];
- }
- }
- 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[q]) {
- cache.length++;
- }
- cache.data[q] = data;
- };
-
- function findPos(obj) {
- var curleft = obj.offsetLeft || 0;
- var curtop = obj.offsetTop || 0;
- while (obj = obj.offsetParent) {
- curleft += obj.offsetLeft
- curtop += obj.offsetTop
- }
- return {x:curleft,y:curtop};
- }
- }
-
- /**
- * The autocomplete plugin itself
- */
- $.fn.autocomplete = function(url, options, data) {
-
- // Make sure options exists
- options = options || {};
- // Set url as option
- options.url = url;
- // set some bulk local data
- options.data = ((typeof data == "object") && (data.constructor == Array)) ? data : null;
-
- // Set default values for required options (set global defaults in $.fn.autocomplete.defaults)
- options = $.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
- }, $.fn.autocomplete.defaults, options);
-
- options.width = parseInt(options.width, 10);
-
- return this.each(function() {
- var input = this;
- new $.autocomplete(input, options);
- });
-
- }
-
-})(jQuery);
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