$.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); // Set default values for results var pos = findPos(input); $results.hide().addClass(options.resultsClass).css({ position: "absolute", top: (pos.y + input.offsetHeight) + "px", left: pos.x + "px" }); // Add to body element $("body").append(results); input.autocompleter = me; input.lastSelected = $input.val(); var timeout = null; var prev = ""; var active = -1; var cache = {}; var keyb = false; $input .keydown(function(e) { if($results) { switch(e.keyCode) { case 38: // up e.preventDefault(); moveSelect(-1); break; case 40: // down e.preventDefault(); moveSelect(1); break; //case 188: //comma case 9: // tab case 13: // return if (selectCurrent()) { e.preventDefault(); } break; default: active = -1; if (timeout) clearTimeout(timeout); timeout = setTimeout(onChange, options.delay); break; } } }) .blur(function() { hideResults(); }); hideResultsNow(); function onChange() { var v = $input.val(); //console.log('onchange:',v); 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("over"); $(lis[active]).addClass("over"); // Weird behaviour in IE // if (lis[active] && lis[active].scrollIntoView) { // lis[active].scrollIntoView(false); // } }; function selectCurrent() { var li = $("li.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(""); if(options.mode == "multiple") { old_value = $input.val(); if(old_value.lastIndexOf(options.multipleSeparator) >= 1) { sep_pos = old_value.lastIndexOf(options.multipleSeparator); value = old_value.substr(0,sep_pos+1); new_value = value + v +options.multipleSeparator; } else { new_value = v + options.multipleSeparator; } } else { new_value = v; } $input.val(new_value); hideResultsNow(); if (options.onItemSelect) setTimeout(function() { options.onItemSelect(li) }, 1); }; function hideResults() { if (timeout) clearTimeout(timeout); timeout = setTimeout(hideResultsNow, 200); }; function hideResultsNow() { if (timeout) clearTimeout(timeout); $input.removeClass(options.loadingClass); if ($results.is(":visible")) { $results.hide(); } if (options.mustMatch) { var v = $input.val(); if (v != input.lastSelected) { selectItem(null); } } }; function receiveData(q, data) { if (data) { $input.removeClass(options.loadingClass); results.innerHTML = ""; if ($.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)); $results.show(); } 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; 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]; } 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() { $("li", ul).removeClass("over"); $(this).addClass("over"); }, function() { $(this).removeClass("over"); } ).click(function(e) { e.preventDefault(); e.stopPropagation(); selectItem(this) }); } return ul; }; function requestData(q) { if (!options.matchCase) q = q.toLowerCase(); var data = options.cacheLength ? loadFromCache(q) : null; if (data) { receiveData(q, data); } else { $.get(makeUrl(q), function(data) { data = parseData(data) addToCache(q, data); receiveData(q, data); }); } }; function makeUrl(q) { if(options.mode == "multiple") { if(q.lastIndexOf(options.multipleSeparator) >= 1) { sep_pos = q.lastIndexOf(options.multipleSeparator); q = q.substr(sep_pos+1); } } var url = options.url + "?q=" + q; for (var i in options.extraParams) { url += "&" + i + "=" + options.extraParams[i]; } return url; }; function loadFromCache(q) { return null; if (!q) return null; if (cache[q]) return cache[q]; if (options.matchSubset) { for (var i = q.length - 1; i >= options.minChars; i--) { var qs = q.substr(0, i); var c = cache[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() { cache = {}; }; this.setExtraParams = function(p) { options.extraParams = p; }; function addToCache(q, data) { if (!data || !q || !options.cacheLength) return; if (!cache.length || cache.length > options.cacheLength) { cache = {}; cache.length = 1; // we know we're adding something } else if (!cache[q]) { cache.length++; } cache[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}; } } $.fn.autocomplete = function(url, options) { // Make sure options exists options = options || {}; // Set url as option options.url = url; // Set default values for required options options.inputClass = options.inputClass || "ac_input"; options.resultsClass = options.resultsClass || "ac_results"; options.lineSeparator = options.lineSeparator || "\n"; options.cellSeparator = options.cellSeparator || "|"; options.minChars = options.minChars || 1; options.delay = options.delay || 200; options.matchCase = options.matchCase || 0; options.matchSubset = options.matchSubset || 1; options.matchContains = options.matchContains || 0; options.cacheLength = options.cacheLength || 1; options.mustMatch = options.mustMatch || 0; options.extraParams = options.extraParams || {}; options.loadingClass = options.loadingClass || "ac_loading"; options.selectFirst = options.selectFirst || false; options.selectOnly = options.selectOnly || false; options.mode = options.mode || "single"; options.multipleSeparator = options.multipleSeparator || ","; this.each(function() { var input = this; new $.autocomplete(input, options); }); // Don't break the chain return this; }