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path: root/themes/default/js/plugins/jquery.fcbkcomplete.js
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/*
 FCBKcomplete 2.7
 - Jquery version required: 1.2.x, 1.3.x, 1.4.x
 
 Changelog:
 - 2.00	new version of fcbkcomplete
 
 - 2.01 fixed bugs & added features
 		fixed filter bug for preadded items
		focus on the input after selecting tag
		the element removed pressing backspace when the element is selected
		input tag in the control has a border in IE7
		added iterate over each match and apply the plugin separately
		set focus on the input after selecting tag
 
 - 2.02 fixed fist element selected bug
		fixed defaultfilter error bug
 
 - 2.5 	removed selected="selected" attribute due ie bug
		element search algorithm changed
		better performance fix added
		fixed many small bugs
		onselect event added
		onremove event added
 
 - 2.6 	ie6/7 support fix added
		added new public method addItem due request
		added new options "firstselected" that you can set true/false to select first element on dropdown list
		autoexpand input element added
		removeItem bug fixed
		and many more bug fixed
 		fixed public method to use it $("elem").trigger("addItem",[{"title": "test", "value": "test"}]);
		
- 2.7 jquery 1.4 compability
 		item lock possability added by adding locked class to preadded option <option value="value" class="selected locked">text</option>
 		maximum item that can be added to the list		
 */
/* Coded by: emposha <admin@emposha.com> */
/* Copyright: Emposha.com <http://www.emposha.com/> - Distributed under MIT - Keep this message! */
/*
 * json_url         - url to fetch json object
 * cache       		- use cache
 * height           - maximum number of element shown before scroll will apear
 * newel            - show typed text like a element
 * firstselected	- automaticly select first element from dropdown
 * filter_case      - case sensitive filter
 * filter_selected  - filter selected items from list
 * complete_text    - text for complete page
 * maxshownitems	- maximum numbers that will be shown at dropdown list (less better performance)
 * onselect			- fire event on item select
 * onremove			- fire event on item remove
 * maxitimes		- maximum items that can be added
 */
jQuery(function($){
    $.fn.fcbkcomplete = function(opt){
        return this.each(function(){
            function init(){
                createFCBK();
                preSet();
                addInput(0);
            }
            
            function createFCBK(){
                element.hide();
                element.attr("multiple", "multiple");
                if (element.attr("name").indexOf("[]") == -1) {
                    element.attr("name", element.attr("name") + "[]");
                }
                
                holder = $(document.createElement("ul"));
                holder.attr("class", "holder");
                element.after(holder);
                
                complete = $(document.createElement("div"));
                complete.addClass("facebook-auto");
                complete.append('<div class="default">' + options.complete_text + "</div>");
                
                if (browser_msie) {
                    complete.append('<iframe class="ie6fix" scrolling="no" frameborder="0"></iframe>');
                    browser_msie_frame = complete.children('.ie6fix');
                }
                
                feed = $(document.createElement("ul"));
                feed.attr("id", elemid + "_feed");
                
                complete.prepend(feed);
                holder.after(complete);
                feed.css("width", complete.width());
            }
            
            function preSet(){
                element.children("option").each(function(i, option){
                    option = $(option);
                    if (option.hasClass("selected")) {
                        addItem(option.text(), option.val(), true, option.hasClass("locked"));
                        option.attr("selected", "selected");
                    }
                    else {
                        option.removeAttr("selected");
                    }
                    
                    cache.push({
                        caption: option.text(),
                        value: option.val()
                    });
                    search_string += "" + (cache.length - 1) + ":" + option.text() + ";";
                });
            }
            
            //public method to add new item
            $(this).bind("addItem", function(event, data){
                addItem(data.title, data.value);
            });
            
            function addItem(title, value, preadded, locked){
                if (!maxItems()) {
                    return false;
                }
                var li = document.createElement("li");
                var txt = document.createTextNode(title);
                var aclose = document.createElement("a");
                var liclass = "bit-box" + (locked ? " locked" : "");
                $(li).attr({
                    "class": liclass,
                    "rel": value
                });
                $(li).prepend(txt);
                $(aclose).attr({
                    "class": "closebutton",
                    "href": "#"
                });
                
                li.appendChild(aclose);
                holder.append(li);
                
                $(aclose).click(function(){
                    removeItem($(this).parent("li"));
                    return false;
                });
                
                if (!preadded) {
                    $("#" + elemid + "_annoninput").remove();
                    var _item;
                    addInput(1);
                    if (element.children("option[value=" + value + "]").length) {
                        _item = element.children("option[value=" + value + "]");
                        _item.get(0).setAttribute("selected", "selected");
                        if (!_item.hasClass("selected")) {
                            _item.addClass("selected");
                        }
                    }
                    else {
                        var _item = $(document.createElement("option"));
                        _item.attr("value", value).get(0).setAttribute("selected", "selected");
                        _item.attr("value", value).addClass("selected");
                        _item.text(title);
                        element.append(_item);
                    }
                    if (options.onselect.length) {
                        funCall(options.onselect, _item)
                    }
                }
                holder.children("li.bit-box.deleted").removeClass("deleted");
                feed.hide();
                browser_msie ? browser_msie_frame.hide() : '';
            }
            
            function removeItem(item){
                var parent = item.parent("li");
                if (!parent.hasClass('locked')) {
                    parent.fadeOut("fast");
                    if (options.onremove.length) {
                        var _item = element.children("option[value=" + item.attr("rel") + "]");
                        funCall(options.onremove, _item)
                    }
                    element.children("option[value=" + item.attr("rel") + "]").removeAttr("selected");
                    element.children("option[value=" + item.attr("rel") + "]").removeClass("selected");
                    item.remove();
                    deleting = 0;
                }
            }
            
            function addInput(focusme){
                var li = $(document.createElement("li"));
                var input = $(document.createElement("input"));
                
                li.attr({
                    "class": "bit-input",
                    "id": elemid + "_annoninput"
                });
                input.attr({
                    "type": "text",
                    "class": "maininput",
                    "size": "1"
                });
                holder.append(li.append(input));
                
                input.focus(function(){
                    complete.fadeIn("fast");
                });
                
                input.blur(function(){
                    complete.fadeOut("fast");
                });
                
                holder.click(function(){
                    input.focus();
                    if (feed.length && input.val().length) {
                        feed.show();
                    }
                    else {
                        feed.hide();
                        browser_msie ? browser_msie_frame.hide() : '';
                        complete.children(".default").show();
                    }
                });
                
                input.keypress(function(event){
                    if (event.keyCode == 13) {
                        return false;
                    }
                    //auto expand input							
                    input.attr("size", input.val().length + 1);
                });
                
                input.keydown(function(event){
                    //prevent to enter some bad chars when input is empty
                    if (event.keyCode == 191) {
                        event.preventDefault();
                        return false;
                    }
                });
                
                input.keyup(function(event){
                    var etext = xssPrevent(input.val());
                    
                    if (event.keyCode == 8 && etext.length == 0) {
                        feed.hide();
                        browser_msie ? browser_msie_frame.hide() : '';
                        if (!holder.children("li.bit-box:last").hasClass('locked')) {
                            if (holder.children("li.bit-box.deleted").length == 0) {
                                holder.children("li.bit-box:last").addClass("deleted");
                                return false;
                            }
                            else {
                                if (deleting) {
                                    return;
                                }
                                deleting = 1;
                                holder.children("li.bit-box.deleted").fadeOut("fast", function(){
                                    removeItem($(this));
                                    return false;
                                });
                            }
                        }
                    }
                    
                    if (event.keyCode != 40 && event.keyCode != 38 && etext.length != 0) {
                        counter = 0;
                        
                        if (options.json_url) {
                            if (options.cache && json_cache) {
                                addMembers(etext);
                                bindEvents();
                            }
                            else {
                                $.getJSON(options.json_url + "?tag=" + etext, null, function(data){
                                    addMembers(etext, data);
                                    json_cache = true;
                                    bindEvents();
                                });
                            }
                        }
                        else {
                            addMembers(etext);
                            bindEvents();
                        }
                        complete.children(".default").hide();
                        feed.show();
                    }
                });
                if (focusme) {
                    setTimeout(function(){
                        input.focus();
                        complete.children(".default").show();
                    }, 1);
                }
            }
            
            function addMembers(etext, data){
                feed.html('');
                
                if (!options.cache) {
                    cache = new Array();
                    search_string = "";
                }
                
                addTextItem(etext);
                
                if (data != null && data.length) {
                    $.each(data, function(i, val){
                        cache.push({
                            caption: val.caption,
                            value: val.value
                        });
                        search_string += "" + (cache.length - 1) + ":" + val.caption + ";";
                    });
                }
                
                var maximum = options.maxshownitems < cache.length ? options.maxshownitems : cache.length;
                var filter = "i";
                if (options.filter_case) {
                    filter = "";
                }
                
                var myregexp, match;
                try {
                    myregexp = eval('/(?:^|;)\\s*(\\d+)\\s*:[^;]*?' + etext + '[^;]*/g' + filter);
                    match = myregexp.exec(search_string);
                } 
                catch (ex) {
                };
                
                var content = '';
                while (match != null && maximum > 0) {
                    var id = match[1];
                    var object = cache[id];
                    if (options.filter_selected && element.children("option[value=" + object.value + "]").hasClass("selected")) {
                        //nothing here...
                    }
                    else {
                        content += '<li rel="' + object.value + '">' + itemIllumination(object.caption, etext) + '</li>';
                        counter++;
                        maximum--;
                    }
                    match = myregexp.exec(search_string);
                }
                feed.append(content);
                
                if (options.firstselected) {
                    focuson = feed.children("li:visible:first");
                    focuson.addClass("auto-focus");
                }
                
                if (counter > options.height) {
                    feed.css({
                        "height": (options.height * 24) + "px",
                        "overflow": "auto"
                    });
                    if (browser_msie) {
                        browser_msie_frame.css({
                            "height": (options.height * 24) + "px",
                            "width": feed.width() + "px"
                        }).show();
                    }
                }
                else {
                    feed.css("height", "auto");
                    if (browser_msie) {
                        browser_msie_frame.css({
                            "height": feed.height() + "px",
                            "width": feed.width() + "px"
                        }).show();
                    }
                }
            }
            
            function itemIllumination(text, etext){
                if (options.filter_case) {
                    try {
                        eval("var text = text.replace(/(.*)(" + etext + ")(.*)/gi,'$1<em>$2</em>$3');");
                    } 
                    catch (ex) {
                    };
                                    }
                else {
                    try {
                        eval("var text = text.replace(/(.*)(" + etext.toLowerCase() + ")(.*)/gi,'$1<em>$2</em>$3');");
                    } 
                    catch (ex) {
                    };
                                    }
                return text;
            }
            
            function bindFeedEvent(){
                feed.children("li").mouseover(function(){
                    feed.children("li").removeClass("auto-focus");
                    $(this).addClass("auto-focus");
                    focuson = $(this);
                });
                
                feed.children("li").mouseout(function(){
                    $(this).removeClass("auto-focus");
                    focuson = null;
                });
            }
            
            function removeFeedEvent(){
                feed.children("li").unbind("mouseover");
                feed.children("li").unbind("mouseout");
                feed.mousemove(function(){
                    bindFeedEvent();
                    feed.unbind("mousemove");
                });
            }
            
            function bindEvents(){
                var maininput = $("#" + elemid + "_annoninput").children(".maininput");
                bindFeedEvent();
                feed.children("li").unbind("mousedown");
                feed.children("li").mousedown(function(){
                    var option = $(this);
                    addItem(option.text(), option.attr("rel"));
                    feed.hide();
                    browser_msie ? browser_msie_frame.hide() : '';
                    complete.hide();
                });
                
                maininput.unbind("keydown");
                maininput.keydown(function(event){
                    if (event.keyCode == 191) {
                        event.preventDefault();
                        return false;
                    }
                    
                    if (event.keyCode != 8) {
                        holder.children("li.bit-box.deleted").removeClass("deleted");
                    }
                    
                    if (event.keyCode == 13 && checkFocusOn()) {
                        var option = focuson;
                        addItem(option.text(), option.attr("rel"));
                        complete.hide();
                        event.preventDefault();
                        focuson = null;
                        return false;
                    }
                    
                    if (event.keyCode == 13 && !checkFocusOn()) {
                        if (options.newel) {
                            var value = xssPrevent($(this).val());
                            addItem(value, value);
                            complete.hide();
                            event.preventDefault();
                            focuson = null;
                        }
                        return false;
                    }
                    
                    if (event.keyCode == 40) {
                        removeFeedEvent();
                        if (focuson == null || focuson.length == 0) {
                            focuson = feed.children("li:visible:first");
                            feed.get(0).scrollTop = 0;
                        }
                        else {
                            focuson.removeClass("auto-focus");
                            focuson = focuson.nextAll("li:visible:first");
                            var prev = parseInt(focuson.prevAll("li:visible").length, 10);
                            var next = parseInt(focuson.nextAll("li:visible").length, 10);
                            if ((prev > Math.round(options.height / 2) || next <= Math.round(options.height / 2)) && typeof(focuson.get(0)) != "undefined") {
                                feed.get(0).scrollTop = parseInt(focuson.get(0).scrollHeight, 10) * (prev - Math.round(options.height / 2));
                            }
                        }
                        feed.children("li").removeClass("auto-focus");
                        focuson.addClass("auto-focus");
                    }
                    if (event.keyCode == 38) {
                        removeFeedEvent();
                        if (focuson == null || focuson.length == 0) {
                            focuson = feed.children("li:visible:last");
                            feed.get(0).scrollTop = parseInt(focuson.get(0).scrollHeight, 10) * (parseInt(feed.children("li:visible").length, 10) - Math.round(options.height / 2));
                        }
                        else {
                            focuson.removeClass("auto-focus");
                            focuson = focuson.prevAll("li:visible:first");
                            var prev = parseInt(focuson.prevAll("li:visible").length, 10);
                            var next = parseInt(focuson.nextAll("li:visible").length, 10);
                            if ((next > Math.round(options.height / 2) || prev <= Math.round(options.height / 2)) && typeof(focuson.get(0)) != "undefined") {
                                feed.get(0).scrollTop = parseInt(focuson.get(0).scrollHeight, 10) * (prev - Math.round(options.height / 2));
                            }
                        }
                        feed.children("li").removeClass("auto-focus");
                        focuson.addClass("auto-focus");
                    }
                });
            }
            
            function maxItems(){
                if (options.maxitems != 0) {
                    if (holder.children("li.bit-box").length < options.maxitems) {
                        return true;
                    }
                    else {
                        return false;
                    }
                }
            }
            
            function addTextItem(value){
                if (options.newel && maxItems()) {
                    feed.children("li[fckb=1]").remove();
                    if (value.length == 0) {
                        return;
                    }
                    var li = $(document.createElement("li"));
                    li.attr({
                        "rel": value,
                        "fckb": "1"
                    }).html(value);
                    feed.prepend(li);
                    counter++;
                }
                else {
                    return;
                }
            }
            
            function funCall(func, item){
                var _object = "";
                for (i = 0; i < item.get(0).attributes.length; i++) {
                    if (item.get(0).attributes[i].nodeValue != null) {
                        _object += "\"_" + item.get(0).attributes[i].nodeName + "\": \"" + item.get(0).attributes[i].nodeValue + "\",";
                    }
                }
                _object = "{" + _object + " notinuse: 0}";
                try {
                    eval(func + "(" + _object + ")");
                } 
                catch (ex) {
                };
                            }
            
            function checkFocusOn(){
                if (focuson == null) {
                    return false;
                }
                if (focuson.length == 0) {
                    return false;
                }
                return true;
            }
            
            function xssPrevent(string){
                string = string.replace(/[\"\'][\s]*javascript:(.*)[\"\']/g, "\"\"");
                string = string.replace(/script(.*)/g, "");
                string = string.replace(/eval\((.*)\)/g, "");
                string = string.replace('/([\x00-\x08,\x0b-\x0c,\x0e-\x19])/', '');
                return string;
            }
            
            var options = $.extend({
                json_url: null,
                cache: false,
                height: "10",
                newel: false,
                firstselected: false,
                filter_case: false,
                filter_hide: false,
                complete_text: "Start to type...",
                maxshownitems: 30,
                maxitems: 0,
                onselect: "",
                onremove: ""
            }, opt);
            
            //system variables
            var holder = null;
            var feed = null;
            var complete = null;
            var counter = 0;
            var cache = new Array();
            var json_cache = false;
            var search_string = "";
            var focuson = null;
            var deleting = 0;
            var browser_msie = "\v" == "v";
            var browser_msie_frame;
            
            var element = $(this);
            var elemid = element.attr("id");
            init();
            
            return this;
        });
    };
});