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jquery.aceditable.js
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/*
* jQuery ContentEditable AC Autocompletion Plugin
*
* A signifigant fork of the Original AutoComplete by Jörn Zaeffererrequest
*
* Copyright (c) 2009 Jörn Zaeffererrequest and Aaron Raddon
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
* Revision: $Id: jquery.autocomplete.js 15 2009-08-22 10:30:27Z joern.zaefferer $
*/
(function($) {
if (window['log'] == undefined){
window['log'] = {
toggle: function() {},
move: function() {},
resize: function() {},
clear: function() {},
debug: function() {},
info: function() {},
warn: function() {},
error: function() {},
profile: function() {}
};
}
$.fn.extend({
autocomplete: function(urlOrData, options) {
var isUrl = typeof urlOrData == "string";
options = $.extend({
formatEditableResult: function(row) { return '<a contenteditable="false" href="#" tabindex="-1" >@' + row[options.jsonterm] + '</a> ';}
}, $.Autocompleter.defaults, {
url: isUrl ? urlOrData : null,
data: isUrl ? null : urlOrData,
delay: isUrl ? $.Autocompleter.defaults.delay : 10,
max: options && !options.scroll ? 10 : 150
}, options);
options.formatResult = options.formatResult || function(row) { return row[options.jsonterm];};
// if highlight is set to false, replace it with a do-nothing function
options.highlight = options.highlight || function(value) { return value; };
// if the formatMatch option is not specified, then use formatItem for backwards compatibility
options.formatMatch = options.formatMatch || function(row) { return row[options.jsonterm]; };
options.formatItem = options.formatItem || function(row) { return row[options.jsonterm]; };
return this.each(function() {
new $.Autocompleter(this, options);
});
},
result: function(handler) {
return this.bind("result", handler);
},
search: function(handler) {
return this.trigger("search", [handler]);
},
flushCache: function() {
return this.trigger("flushCache");
},
setOptions: function(options){
return this.trigger("setOptions", [options]);
},
unautocomplete: function() {
return this.trigger("unautocomplete");
},
notfound: function() {
return this.trigger("ace_notfound");
}
});
$.Autocompleter = function(input, options) {
var KEY = {
UP: 38,
DOWN: 40,
DEL: 46,
TAB: 9,
RETURN: 13,
SHIFT: 16,
ESC: 27,
COMMA: 188,
PAGEUP: 33,
PAGEDOWN: 34,
BACKSPACE: 8,
SPACE: 32,
LEFT: 37,
RIGHT: 39,
AT: 50,
POUND:34,
DOLLAR:52,
SEMIC:59
};
// Create $ object for input element
var $input = $(input).attr("autocomplete", "off").addClass(options.inputClass);
var timeout;
var previousValue = "";
var cache = $.Autocompleter.Cache(options);
var hasFocus = 0;
var cursorStart = 0;
var editable = null;
var editableSelection, editableRange;
var lastKeyPressCode;
var preKeyPressCode;
var prePreKeyPressCode;
var hotKey = "@";
var autocActive = options.hotkeymode ? false : true;
var config = {
mouseDownOnSelect: false
};
var select = $.Autocompleter.Select(options, input, selectCurrent, config);
var blockSubmit;
if (options.hotkeymode) {
options.multiple = false;
}
// prevent form submit in opera when selecting with return key
$.browser.opera && $(input.form).bind("submit.autocomplete", function() {
if (blockSubmit) {
blockSubmit = false;
return false;
}
});
if (input.value == undefined && options.width < 1){
editable = $(input)[0];
options.width = $(input).parent().parent().width();
options.left = $(input).parent().parent().offset().left;
}
// only opera doesn't trigger keydown multiple times while pressed, others don't work with keypress at all
$input.bind(($.browser.opera ? "keypress" : "keydown") + ".autocomplete", function(event) {
// a keypress means the input has focus
// avoids issue where input had focus before the autocomplete was applied
hasFocus = 1;
var k=event.keyCode || event.which; // keyCode == 0 in Gecko/FF on keypress
//log.debug("keypress: " + k);
if (k == KEY.RETURN){
log.debug("in k = " + k + ' options.supressReturn =' + options.supressReturn)
}
// track history, probably should push/pop an array
prePreKeyPressCode = preKeyPressCode;
preKeyPressCode = lastKeyPressCode;
lastKeyPressCode = k;
if (options.hotkeymode && autocActive === false){
if (k == KEY.AT && event.shiftKey && (KEY.SPACE == prePreKeyPressCode || prePreKeyPressCode == undefined)){
autocActive = true;
log.debug("AutoComplete now active in Hotkey mode")
clearTimeout(timeout);
timeout = setTimeout(onChange, options.delay);
}
return;
}
switch(k) {
case KEY.UP:
event.preventDefault();
if ( select.visible() ) {
select.prev();
} else {
onChange(0, true);
}
break;
case KEY.DOWN:
event.preventDefault();
if ( select.visible() ) {
select.next();
} else {
onChange(0, true);
}
break;
case KEY.PAGEUP:
event.preventDefault();
if ( select.visible() ) {
select.pageUp();
} else {
onChange(0, true);
}
break;
case KEY.PAGEDOWN:
event.preventDefault();
if ( select.visible() ) {
select.pageDown();
} else {
onChange(0, true);
}
break;
// matches also semicolon
case options.multiple && $.trim(options.multipleSeparator) == "," && KEY.COMMA:
case KEY.TAB:
case KEY.RETURN:
case KEY.RIGHT:
case KEY.SEMIC:
if (k == KEY.RETURN)
event.preventDefault();
if( selectCurrent() ) {
// stop default to prevent a form submit, Opera needs special handling
log.debug("in k = " + k + ' options.supressReturn =' + options.supressReturn)
if (k == KEY.RETURN && options.supressReturn)
event.preventDefault();
blockSubmit = true;
hideResultsNow();
if (options.hotkeymode || options.multiple === true){
log.debug("in return false")
return false;
}
} else {
log.debug("nada found? trigger notfound?");
$input.trigger("ace_notfound", {});
hideResultsNow();
if (k == KEY.RETURN && options.supressReturn)
event.preventDefault();
}
if (k == KEY.TAB || k == KEY.RETURN){
log.debug("was tab")
}
break;
case KEY.ESC:
select.hide();
break;
default:
if( autocActive === true ) {
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
log.debug("has focus")
hasFocus++;
if( autocActive === true && options.hotkeymode) {
onChange(0, true);
} else if (!options.hotkeymode) {
if (!autocActive)
autocActive = true;
onChange(0, true);
}
}).blur(function() {
hasFocus = 0;
if (!config.mouseDownOnSelect) {
hideResults();
}
}).click(function() {
// show select when clicking in a focused field
if ( hasFocus++ > 1 && !select.visible() ) {
onChange(0, true);
} else {
log.debug('hasfocus = ' + hasFocus);
log.debug('hasfocus = ' + (hasFocus > 1));
log.debug('visible()' + (!select.visible()))
log.debug('visible()' + select.visible())
}
}).bind('result',function(){
hasFocus = 0;
hideResults();
}).bind("search", function() {
// TODO why not just specifying both arguments?
var fn = (arguments.length > 1) ? arguments[1] : null;
function findValueCallback(q, data) {
var result;
if( data && data.length ) {
for (var i=0; i < data.length; i++) {
if( data[i].result.toLowerCase() == q.toLowerCase() ) {
result = data[i];
break;
}
}
}
if( typeof fn == "function" ) {
fn(result);
} else {
$input.trigger("result", result && [result.data, result.value]);
}
}
$.each(trimWords(smartVal()), function(i, value) {
request(value, findValueCallback, findValueCallback);
});
}).bind("flushCache", function() {
cache.flush();
}).bind("setOptions", function() {
$.extend(options, arguments[1]);
// if we've updated the data, repopulate
if ( "data" in arguments[1] )
cache.populate();
}).bind("unautocomplete", function() {
select.unbind();
$input.unbind();
$(input.form).unbind(".autocomplete");
});
function selectCurrent() {
var selected = select.selected();
if( !selected )
return false;
var v = selected.result;
previousValue = v;
if ( options.multiple ) {
var words = trimWords(smartVal());
if ( words.length > 1 ) {
var seperator = options.multipleSeparator.length;
var cursorAt = $(input).selection().start;
var wordAt, progress = 0;
$.each(words, function(i, word) {
progress += word.length;
if (cursorAt <= progress) {
wordAt = i;
return false;
}
progress += seperator;
});
words[wordAt] = v;
// TODO this should set the cursor to the right position, but it gets overriden somewhere
//$.Autocompleter.Selection(input, progress + seperator, progress + seperator);
v = words.join( options.multipleSeparator );
}
v += options.multipleSeparator;
} else if ( options.hotkeymode) {
autocActive = false;
var cur = smartVal();
cur = cur.substring(0,cursorStart -1);
log.info("found Data! " + selected.data[0] + ' ' + selected.data[1])
v = cur + options.formatResult(selected.data);
if (input.value == undefined) {
v = v + '<span id="cursorStart">—</span>';
}
//storeContentEditableCursor();
}
smartVal(v);
hideResultsNow();
$input.trigger("result", [selected.data, selected.value]);
if ( options.hotkeymode && input.value == undefined)
editableReturnCursor();
return true;
}
function setupContentEditable(){
if(editableSelection.getRangeAt !== undefined) {
//ok
// Get range (Safari 2)
} else if(
document.createRange &&
editableSelection.anchorNode &&
editableSelection.anchorOffset &&
editableSelection.focusNode &&
editableSelection.focusOffset
) {
var temp = '';
}
}
function storeContentEditableCursor() {
// editable is the contentEditable div
// Don't capture selection outside editable region
var isOrContainsAnchor = false,
isOrContainsFocus = false,
sel = window.getSelection(),
parentAnchor = sel.anchorNode,
parentFocus = sel.focusNode;
while(parentAnchor && parentAnchor != document.documentElement) {
if(parentAnchor == editable) {
isOrContainsAnchor = true;
}
parentAnchor = parentAnchor.parentNode;
}
while(parentFocus && parentFocus != document.documentElement) {
if(parentFocus == editable) {
isOrContainsFocus = true;
}
parentFocus = parentFocus.parentNode;
}
if(!isOrContainsAnchor || !isOrContainsFocus) {
return;
}
editableSelection = window.getSelection();
//editableSelection, editableRange;
// Get range (standards)
if(editableSelection.getRangeAt !== undefined) {
editableRange = editableSelection.getRangeAt(0);
//log.debug("in contenteditable keyup")
// Get range (Safari 2)
} else if(
document.createRange &&
editableSelection.anchorNode &&
editableSelection.anchorOffset &&
editableSelection.focusNode &&
editableSelection.focusOffset
) {
editableRange = document.createRange();
editableRange.setStart(selection.anchorNode, editableSelection.anchorOffset);
editableRange.setEnd(selection.focusNode, editableSelection.focusOffset);
} else {
// Failure here, not handled by the rest of the script.
// Probably IE or some older browser
// TODO: gracefully degrate to textarea?
}
var cursorStartSpan = document.createElement('span'),
collapsed = !!editableRange.collapsed;
cursorStartSpan.id = 'cursorStart';
cursorStartSpan.appendChild(document.createTextNode('—'));
// Insert beginning cursor marker
editableRange.insertNode(cursorStartSpan);
// Insert end cursor marker if any text is selected
if(!collapsed) {
var cursorEnd = document.createElement('span');
cursorEnd.id = 'cursorEnd';
editableRange.collapse();
editableRange.insertNode(cursorEnd);
}
}
function editableReturnCursor(){
// Slight delay will avoid the initial selection
// (at start or of contents depending on browser) being mistaken
setTimeout(function() {
var cursorStartSpan = document.getElementById('cursorStart'),
cursorEnd = document.getElementById('cursorEnd');
if (window.getSelection) { // Firefox, Safari, Opera
editableSelection = window.getSelection();
var range = document.createRange();
range.selectNode(cursorStartSpan);
// Select range
editableSelection.removeAllRanges();
editableSelection.addRange(range);
// Delete cursor marker
document.execCommand('delete', false, null);
} else {
if (document.body.createTextRange) { // Internet Explorer
var rangeToSelect = document.body.createTextRange();
rangeToSelect.moveToElementText(cursorStartSpan);
rangeToSelect.select();
document.selection.clear();
}
}
// Register selection again
//captureSelection();
}, 10);
}
function onChange(crap, skipPrevCheck) {
if( lastKeyPressCode == KEY.DEL ) {
select.hide();
return;
}
var currentValue = smartVal();
if ( !skipPrevCheck && currentValue == previousValue ){
return;
}
currentValue = findSearchTerm(currentValue);
previousValue = currentValue;
log.debug("onChange curVal = " + currentValue)
if ( currentValue.length >= options.minChars) {
$input.addClass(options.loadingClass);
if (!options.matchCase)
currentValue = currentValue.toLowerCase();
request(currentValue, receiveData, hideResultsNow);
} else {
log.debug("in else")
stopLoading();
if (options.startmsg != null) {
select.emptyList();
select.display({}, null);
select.show();
} else {
select.hide();
}
}
};
function trimWords(value) {
if (!value)
return [""];
if (!options.multiple && !options.hotkeymode) {
return [$.trim(value)];
} else if (options.multiple) {
return $.map(value.split(options.multipleSeparator), function(word) {
return $.trim(value).length ? $.trim(word) : null;
});
} else if (options.hotkeymode) {
log.error("should not get here, remove this section, not user")
return fake.raise.error;
}
}
// find word currently being searched for, anything after
// previous results, or non query text
function findSearchTerm(value) {
if ( !options.multiple && !options.hotkeymode) {
return value;
} else if (options.multiple) {
var words = trimWords(value);
if (words.length == 1)
return words[0];
var cursorAt = $(input).selection().start;
if (cursorAt == value.length) {
words = trimWords(value)
} else {
words = trimWords(value.replace(value.substring(cursorAt), ""));
}
return words[words.length - 1];
// hotkeymode
} else {
if (value && value.lastIndexOf('@') >= 0){
cursorStart = value.lastIndexOf('@') + 1;
} else {
log.error("found no @ in hotkeymode?" + value)
cursorStart = value.length + 2;
}
value = value.substring(cursorStart);
log.info("findSearchTerm: cursorStart,val " + cursorStart + ', ' + value)
return value; //.trim();
}
}
// fills in the input box w/the first match (assumed to be the best match)
// q: the term entered
// sValue: the first matching result
function autoFill(q, sValue){
// autofill in the complete box w/the first match as long as the user hasn't entered in more data
// if the last user key pressed was backspace, don't autofill
if( options.autoFill && (findSearchTerm(smartVal()).toLowerCase() == q.toLowerCase()) && lastKeyPressCode != KEY.BACKSPACE ) {
// fill in the value (keep the case the user has typed)
smartVal(smartVal() + sValue.substring(findSearchTerm(previousValue).length));
// select the portion of the value not typed by the user (so the next character will erase)
$(input).selection(previousValue.length, previousValue.length + sValue.length);
}
};
// replace .val() with something to handle content-editable fields
function smartVal(val) {
var field = $input[0];
//if form input field, vs contenteditable div
if (field.value != undefined){
if (val != undefined) {
return $input.val(val);
} else {
return $input.val();
}
} else {
if (val != undefined) {
return $input.html(val);
} else {
val = $input.html();
if (val != undefined && val.length != undefined && val.length > 0) {
val = $.trim(val);
} else {
val = ''
}
var endval = '', li = 0;
// replace <br> or BUT, only in last bit (10) or past hotkey
// contenteditable appends <br> to end a lot, or the last space as
if (val.lastIndexOf('@') > 0 || val.length > 10){
li = val.lastIndexOf('@') > 0 ? val.lastIndexOf('@') + 1 : val.length - 10;
endval = val.substring(li);
val = val.substring(0,val.length - endval.length);
//log.debug('used substring @ ' + val)
} else {
endval = val;
val = '';
}
// only clean up end of markup, where they are doing insertion?
endval = endval.replace("<br>",'').replace("<br/>",'').replace(" ",' ');
val = val + endval;
//log.debug("smartVal endval = " + escape(endval) + ' val= ' + escape(val))
return val;
}
}
}
function hideResults() {
clearTimeout(timeout);
timeout = setTimeout(hideResultsNow, 200);
};
function hideResultsNow() {
var wasVisible = select.visible();
autocActive = false;
select.hide();
clearTimeout(timeout);
stopLoading();
if (options.mustMatch) {
// call search and run callback
$input.search(
function (result){
// if no value found, clear the input box
if( !result ) {
if (options.multiple) {
var words = trimWords(smartVal()).slice(0, -1);
smartVal( words.join(options.multipleSeparator) + (words.length ? options.multipleSeparator : "") );
} else if (options.hotkeymode) {
smartVal( "" );
$input.trigger("result", null);
} else {
smartVal( "" );
$input.trigger("result", null);
}
}
}
);
}
};
function receiveData(q, data) {
if ( data && data.length && hasFocus ) {
stopLoading();
select.display(data, q);
autoFill(q, data[0].value);
select.show();
} else {
hideResultsNow();
}
};
function request(term, success, failure) {
log.debug("in request term = " + term)
if (!options.matchCase)
term = term.toLowerCase();
log.debug("in request term2 = " + term)
var data = cache.load(term);
log.debug("in request term3 = " + data)
// recieve the cached data
if (data && data.length) {
log.debug('found cache, not loading ' + term)
success(term, data);
return;
// if an AJAX url has been supplied, try loading the data now
} else if( (typeof options.url == "string") && (options.url.length > 0) ){
var extraParams = {
timestamp: +new Date()
};
$.each(options.extraParams, function(key, param) {
extraParams[key] = typeof param == "function" ? param() : param;
});
var found = false;
log.debug("calling ajax, term = " + term, ' dataType = ' + options.dataType)
$.ajax({
// try to leverage ajaxQueue plugin to abort previous requests
mode: "abort",
// limit abortion to this input
port: "autocomplete" + input.name,
dataType: options.dataType,
url: options.url,
data: $.extend({
q: term,
limit: options.max
}, extraParams),
success: function(data) {
if (data.length > 0){
found = true;
var parsed = options.parse && options.parse(data) || parse_json(data);
cache.add(term, parsed);
success(term, parsed);
}
}
});
if (found === true){
log.debug("returning?")
return;
}
}
log.debug("after load in request?")
select.emptyList();
if (options.noresultsmsg != null) {
stopLoading();
select.display({}, term);
select.show();
} else {
// if we have a failure, we need to empty the list -- this prevents the the [TAB] key from selecting the last successful match
failure(term);
}
};
function parse_json(json){
var parsed = [];
log.debug("parsing json, len=" + json.length)
for ( var i = 0, ol = json.length; i < ol; i++ ) {
parsed[i] = {
data: json[i],
value: json[i][options.jsonterm],
result: options.formatResult && options.formatResult(json[i]) || json[i][options.jsonterm]
};
}
return parsed;
}
function stopLoading() {
$input.removeClass(options.loadingClass);
};
};
$.Autocompleter.defaults = {
inputClass: "ac_input",
resultsClass: "ac_results",
loadingClass: "ac_loading",
minChars: 1,
live:false,
startmsg: 'Start typing to get options...',
msgonenter:false,
endmsg: null,
noresultsmsg: null,
delay: 400,
matchCase: false,
matchSubset: true,
matchContains: false,
cacheLength: 10,
supressReturn: false,
max: 100,
mustMatch: false,
extraParams: {},
jsonterm: 0, // 'name' ??
formatResult: null,//placeholder, function in above options
formatItem: null, //placeholder, function in above options
dataType: 'json',
selectFirst: true,
formatMatch: null,
autoFill: false,
width: 0,
left: 0,
multiple: false,
multipleSeparator: ", ",
hotkeymode: false,
highlight: function(value, term) {
return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1") + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>");
},
scroll: true,
scrollHeight: 180
};
$.Autocompleter.Cache = function(options) {
var data = {};
var length = 0;
function matchSubset(s, sub) {
if (!options.matchCase)
s = s.toLowerCase();
var i = s.indexOf(sub);
if (options.matchContains == "word"){
i = s.toLowerCase().search("\\b" + sub.toLowerCase());
}
if (i == -1) return false;
return i == 0 || options.matchContains;
};
function add(q, value) {
if (length > options.cacheLength){
flush();
}
if (!data[q]){
length++;
}
data[q] = value;
}
function populate(){
if( !options.data ) return false;
// track the matches
var stMatchSets = {},
nullData = 0;
// no url was specified, we need to adjust the cache length to make sure it fits the local data store
if( !options.url ) options.cacheLength = 1;
// track all options for minChars = 0
stMatchSets[""] = [];
// loop through the array and create a lookup structure
for ( var i = 0, ol = options.data.length; i < ol; i++ ) {
var rawValue = options.data[i];
// if rawValue is a string, make an array otherwise just reference the array
rawValue = (typeof rawValue == "string") ? [rawValue] : rawValue;
var value = options.formatMatch(rawValue, i+1, options.data.length);
if ( value === false || value === undefined)
continue;
var firstChar = value.charAt(0).toLowerCase();
// if no lookup array for this character exists, look it up now
if( !stMatchSets[firstChar] )
stMatchSets[firstChar] = [];
// if the match is a string
var row = {
value: value,
data: rawValue,
result: options.formatResult && options.formatResult(rawValue) || value
};
// push the current match into the set list
stMatchSets[firstChar].push(row);
// keep track of minChars zero items
if ( nullData++ < options.max ) {
stMatchSets[""].push(row);
}
};
// add the data items to the cache
$.each(stMatchSets, function(i, value) {
// increase the cache size
options.cacheLength++;
// add to the cache
add(i, value);
});
}
// populate any existing data
setTimeout(populate, 25);
function flush(){
data = {};
length = 0;
}
return {
flush: flush,
add: add,
populate: populate,
load: function(q) {
if (!options.cacheLength || !length)
return null;
/*
* if dealing w/local data and matchContains than we must make sure
* to loop through all the data collections looking for matches
*/
if( !options.url && options.matchContains ){
// track all matches
var csub = [];
// loop through all the data grids for matches
for( var k in data ){
// don't search through the stMatchSets[""] (minChars: 0) cache
// this prevents duplicates
if( k.length > 0 ){
var c = data[k];
//log.debug("629 " + c + ' ' + k + ' ' + q)
$.each(c, function(i, x) {
// if we've got a match, add it to the array
if (matchSubset(x.value, q)) {
csub.push(x);
}
});
}
}
return csub;
} else
// if the exact item exists, use it
if (data[q]){
return data[q];
} else
if (options.matchSubset) {
for (var i = q.length - 1; i >= options.minChars; i--) {
var c = data[q.substr(0, i)];
if (c) {
var csub = [];
$.each(c, function(i, x) {
if (matchSubset(x.value, q)) {
csub[csub.length] = x;
}
});
return csub;
}
}
}
return null;
}
};
};
$.Autocompleter.Select = function (options, input, select, config) {
var CLASSES = {
ACTIVE: "ac_over"
};
var listItems,
active = -1,
data,
term = "",
needsInit = true,
element,
list;
// Create results
function init() {
if (!needsInit)
return;
element = $("<div/>")
.hide()
.addClass(options.resultsClass)
.css("position", "absolute")
.appendTo(document.body);
list = $("<ul/>").appendTo(element).css({
width: typeof options.width == "string" || options.width > 0 ? options.width -2 : $(input).width() -2
}).mouseover( function(event) {
if(target(event).nodeName && target(event).nodeName.toUpperCase() == 'LI') {
active = $("li", list).removeClass(CLASSES.ACTIVE).index(target(event));
$(target(event)).addClass(CLASSES.ACTIVE);
}
}).click(function(event) {
$(target(event)).addClass(CLASSES.ACTIVE);
select();
// TODO provide option to avoid setting focus again after selection? useful for cleanup-on-focus
input.focus();
return false;
}).mousedown(function() {
config.mouseDownOnSelect = true;
}).mouseup(function() {
config.mouseDownOnSelect = false;
});
if( options.width > 0 )
element.css("width", options.width);
needsInit = false;
}
function target(event) {
var element = event.target;
while(element && element.tagName != "LI")
element = element.parentNode;
// more fun with IE, sometimes event.target is empty, just ignore it then
if(!element)
return [];
return element;
}
function moveSelect(step) {
listItems.slice(active, active + 1).removeClass(CLASSES.ACTIVE);
movePosition(step);
var activeItem = listItems.slice(active, active + 1).addClass(CLASSES.ACTIVE);
if(options.scroll) {
var offset = 0;
listItems.slice(0, active).each(function() {
offset += this.offsetHeight;
});
if((offset + activeItem[0].offsetHeight - list.scrollTop()) > list[0].clientHeight) {
list.scrollTop(offset + activeItem[0].offsetHeight - list.innerHeight());
} else if(offset < list.scrollTop()) {
list.scrollTop(offset);
}
}
};
function movePosition(step) {
active += step;
if (active < 0) {
active = listItems.size() - 1;
} else if (active >= listItems.size()) {
active = 0;
}
}
function limitNumberOfItems(available) {
return options.max && options.max < available
? options.max
: available;
}
function fillList(q) {
list.empty();
var max = limitNumberOfItems(data.length);
for (var i=0; i < max; i++) {
if (!data[i])
continue;