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/*

        jQuery Tags Input Plugin 1.3.3
        
        Copyright (c) 2011 XOXCO, Inc
        
        Documentation for this plugin lives here:
        http://xoxco.com/clickable/jquery-tags-input
        
        Licensed under the MIT license:
        http://www.opensource.org/licenses/mit-license.php

        ben@xoxco.com

*/

(function($) {

        var delimiter = new Array();
        var tags_callbacks = new Array();
        $.fn.doAutosize = function(o){
            var minWidth = $(this).data('minwidth'),
                maxWidth = $(this).data('maxwidth'),
                val = '',
                input = $(this),
                testSubject = $('#'+$(this).data('tester_id'));
        
            if (val === (val = input.val())) {return;}
        
            // Enter new content into testSubject
            var escaped = val.replace(/&/g, '&amp;').replace(/\s/g,' ').replace(/</g, '&lt;').replace(/>/g, '&gt;');
            testSubject.html(escaped);
            // Calculate new width + whether to change
            var testerWidth = testSubject.width(),
                newWidth = (testerWidth + o.comfortZone) >= minWidth ? testerWidth + o.comfortZone : minWidth,
                currentWidth = input.width(),
                isValidWidthChange = (newWidth < currentWidth && newWidth >= minWidth)
                                     || (newWidth > minWidth && newWidth < maxWidth);
        
            // Animate width
            if (isValidWidthChange) {
                input.width(newWidth);
            }


  };
  $.fn.resetAutosize = function(options){
    // alert(JSON.stringify(options));
    var minWidth =  $(this).data('minwidth') || options.minInputWidth || $(this).width(),
        maxWidth = $(this).data('maxwidth') || options.maxInputWidth || ($(this).closest('.tagsinput').width() - options.inputPadding),
        val = '',
        input = $(this),
        testSubject = $('<tester/>').css({
            position: 'absolute',
            top: -9999,
            left: -9999,
            width: 'auto',
            fontSize: input.css('fontSize'),
            fontFamily: input.css('fontFamily'),
            fontWeight: input.css('fontWeight'),
            letterSpacing: input.css('letterSpacing'),
            whiteSpace: 'nowrap'
        }),
        testerId = $(this).attr('id')+'_autosize_tester';
    if(! $('#'+testerId).length > 0){
      testSubject.attr('id', testerId);
      testSubject.appendTo('body');
    }

    input.data('minwidth', minWidth);
    input.data('maxwidth', maxWidth);
    input.data('tester_id', testerId);
    input.css('width', minWidth);
  };
  
        $.fn.addTag = function(value,options) {
                        options = jQuery.extend({focus:false,callback:true},options);
                        this.each(function() { 
                                var id = $(this).attr('id');

                                var tagslist = $(this).val().split(delimiter[id]);
                                if (tagslist[0] == '') { 
                                        tagslist = new Array();
                                }

                                value = jQuery.trim(value);
                
                                if (options.unique) {
                                        var skipTag = $(this).tagExist(value);
                                        if(skipTag == true) {
                                            //Marks fake input as not_valid to let styling it
                                    $('#'+id+'_tag').addClass('not_valid');
                                }
                                } else {
                                        var skipTag = false; 
                                }
                                
                                if (value !='' && skipTag != true) { 
                    $('<span>').addClass('tag').append(
                        $('<span>').text(value).append('&nbsp;&nbsp;'),
                        $('<a class="tagsinput-remove-link">', {
                            href  : '#',
                            title : 'Remove tag',
                            text  : ''
                        }).click(function () {
                            return $('#' + id).removeTag(escape(value));
                        })
                    ).insertBefore('#' + id + '_addTag');

                                        tagslist.push(value);
                                
                                        $('#'+id+'_tag').val('');
                                        if (options.focus) {
                                                $('#'+id+'_tag').focus();
                                        } else {                
                                                $('#'+id+'_tag').blur();
                                        }
                                        
                                        $.fn.tagsInput.updateTagsField(this,tagslist);
                                        
                                        if (options.callback && tags_callbacks[id] && tags_callbacks[id]['onAddTag']) {
                                                var f = tags_callbacks[id]['onAddTag'];
                                                f.call(this, value);
                                        }
                                        if(tags_callbacks[id] && tags_callbacks[id]['onChange'])
                                        {
                                                var i = tagslist.length;
                                                var f = tags_callbacks[id]['onChange'];
                                                f.call(this, $(this), tagslist[i-1]);
                                        }                                       
                                }
                
                        });             
                        
                        return false;
                };
                
        $.fn.removeTag = function(value) { 
                        value = unescape(value);
                        this.each(function() { 
                                var id = $(this).attr('id');
        
                                var old = $(this).val().split(delimiter[id]);
                                        
                                $('#'+id+'_tagsinput .tag').remove();
                                str = '';
                                for (i=0; i< old.length; i++) { 
                                        if (old[i]!=value) { 
                                                str = str + delimiter[id] +old[i];
                                        }
                                }
                                
                                $.fn.tagsInput.importTags(this,str);

                                if (tags_callbacks[id] && tags_callbacks[id]['onRemoveTag']) {
                                        var f = tags_callbacks[id]['onRemoveTag'];
                                        f.call(this, value);
                                }
                        });
                                        
                        return false;
                };
        
        $.fn.tagExist = function(val) {
                var id = $(this).attr('id');
                var tagslist = $(this).val().split(delimiter[id]);
                return (jQuery.inArray(val, tagslist) >= 0); //true when tag exists, false when not
        };
        
        // clear all existing tags and import new ones from a string
        $.fn.importTags = function(str) {
                id = $(this).attr('id');
                $('#'+id+'_tagsinput .tag').remove();
                $.fn.tagsInput.importTags(this,str);
        }
                
        $.fn.tagsInput = function(options) { 
    var settings = jQuery.extend({
      interactive:true,
      defaultText:'',
      minChars:0,
      width:'',
      height:'',
      autocomplete: {selectFirst: false },
      'hide':true,
      'delimiter':',',
      'unique':true,
      removeWithBackspace:true,
      placeholderColor:'#666666',
      autosize: true,
      comfortZone: 20,
      inputPadding: 6*2
    },options);

                this.each(function() { 
                        if (settings.hide) { 
                                $(this).hide();                         
                        }
                        var id = $(this).attr('id');
                        if (!id || delimiter[$(this).attr('id')]) {
                                id = $(this).attr('id', 'tags' + new Date().getTime()).attr('id');
                        }
                        
                        var data = jQuery.extend({
                                pid:id,
                                real_input: '#'+id,
                                holder: '#'+id+'_tagsinput',
                                input_wrapper: '#'+id+'_addTag',
                                fake_input: '#'+id+'_tag'
                        },settings);
        
                        delimiter[id] = data.delimiter;
                        
                        if (settings.onAddTag || settings.onRemoveTag || settings.onChange) {
                                tags_callbacks[id] = new Array();
                                tags_callbacks[id]['onAddTag'] = settings.onAddTag;
                                tags_callbacks[id]['onRemoveTag'] = settings.onRemoveTag;
                                tags_callbacks[id]['onChange'] = settings.onChange;
                        }
        
            var containerClass = $('#'+id).attr('class').replace('tagsinput', '');
                        var markup = '<div id="'+id+'_tagsinput" class="tagsinput '+containerClass+'"><div class="tagsinput-add-container" id="'+id+'_addTag"><div class="tagsinput-add"></div>';
                        
                        if (settings.interactive) {
                                markup = markup + '<input id="'+id+'_tag" value="" data-default="'+settings.defaultText+'" />';
                        }
                        
                        markup = markup + '</div></div>';
                        
                        $(markup).insertAfter(this);

                        $(data.holder).css('width',settings.width);
                        $(data.holder).css('min-height',settings.height);
                        $(data.holder).css('height','100%');
        
                        if ($(data.real_input).val()!='') { 
                                $.fn.tagsInput.importTags($(data.real_input),$(data.real_input).val());
                        }               
                        if (settings.interactive) { 
                                $(data.fake_input).val($(data.fake_input).attr('data-default'));
                                $(data.fake_input).css('color',settings.placeholderColor);
                        $(data.fake_input).resetAutosize(settings);
                
                                $(data.holder).bind('click',data,function(event) {
                                        $(event.data.fake_input).focus();
                                });
                        
                                $(data.fake_input).bind('focus',data,function(event) {
                                        if ($(event.data.fake_input).val()==$(event.data.fake_input).attr('data-default')) { 
                                                $(event.data.fake_input).val('');
                                        }
                                        $(event.data.fake_input).css('color','#000000');                
                                });
                                                
                                if (settings.autocomplete_url != undefined) {
                                        autocomplete_options = {source: settings.autocomplete_url};
                                        for (attrname in settings.autocomplete) { 
                                                autocomplete_options[attrname] = settings.autocomplete[attrname]; 
                                        }
                                
                                        if (jQuery.Autocompleter !== undefined) {
                                                $(data.fake_input).autocomplete(settings.autocomplete_url, settings.autocomplete);
                                                $(data.fake_input).bind('result',data,function(event,data,formatted) {
                                                        if (data) {
                                                                $('#'+id).addTag(data[0] + "",{focus:true,unique:(settings.unique)});
                                                        }
                                                });
                                        } else if (jQuery.ui.autocomplete !== undefined) {
                                                $(data.fake_input).autocomplete(autocomplete_options);
                                                $(data.fake_input).bind('autocompleteselect',data,function(event,ui) {
                                                        $(event.data.real_input).addTag(ui.item.value,{focus:true,unique:(settings.unique)});
                                                        return false;
                                                });
                                        }
                                
                                        
                                } else {
                                                // if a user tabs out of the field, create a new tag
                                                // this is only available if autocomplete is not used.
                                                $(data.fake_input).bind('blur',data,function(event) { 
                                                        var d = $(this).attr('data-default');
                                                        if ($(event.data.fake_input).val()!='' && $(event.data.fake_input).val()!=d) { 
                                                                if( (event.data.minChars <= $(event.data.fake_input).val().length) && (!event.data.maxChars || (event.data.maxChars >= $(event.data.fake_input).val().length)) )
                                                                        $(event.data.real_input).addTag($(event.data.fake_input).val(),{focus:true,unique:(settings.unique)});
                                                        } else {
                                                                $(event.data.fake_input).val($(event.data.fake_input).attr('data-default'));
                                                                $(event.data.fake_input).css('color',settings.placeholderColor);
                                                        }
                                                        return false;
                                                });
                                
                                }
                                // if user types a comma, create a new tag
                                $(data.fake_input).bind('keypress',data,function(event) {
                                        if (event.which==event.data.delimiter.charCodeAt(0) || event.which==13 ) {
                                            event.preventDefault();
                                                if( (event.data.minChars <= $(event.data.fake_input).val().length) && (!event.data.maxChars || (event.data.maxChars >= $(event.data.fake_input).val().length)) )
                                                        $(event.data.real_input).addTag($(event.data.fake_input).val(),{focus:true,unique:(settings.unique)});
                                                $(event.data.fake_input).resetAutosize(settings);
                                                return false;
                                        } else if (event.data.autosize) {
                                    $(event.data.fake_input).doAutosize(settings);
            
                                }
                                });
                                //Delete last tag on backspace
                                data.removeWithBackspace && $(data.fake_input).bind('keydown', function(event)
                                {
                                        if(event.keyCode == 8 && $(this).val() == '')
                                        {
                                                 event.preventDefault();
                                                 var last_tag = $(this).closest('.tagsinput').find('.tag:last').text();
                                                 var id = $(this).attr('id').replace(/_tag$/, '');
                                                 last_tag = last_tag.replace(/[\s\u00a0]+x$/, '');
                                                 $('#' + id).removeTag(escape(last_tag));
                                                 $(this).trigger('focus');
                                        }
                                });
                                $(data.fake_input).blur();
                                
                                //Removes the not_valid class when user changes the value of the fake input
                                if(data.unique) {
                                    $(data.fake_input).keydown(function(event){
                                        if(event.keyCode == 8 || String.fromCharCode(event.which).match(/\w+|[áéíóúÁÉÍÓÚñÑ,/]+/)) {
                                            $(this).removeClass('not_valid');
                                        }
                                    });
                                }
                        } // if settings.interactive
                });
                        
                return this;
        
        };
        
        $.fn.tagsInput.updateTagsField = function(obj,tagslist) { 
                var id = $(obj).attr('id');
                $(obj).val(tagslist.join(delimiter[id]));
        };
        
        $.fn.tagsInput.importTags = function(obj,val) {                 
                $(obj).val('');
                var id = $(obj).attr('id');
                var tags = val.split(delimiter[id]);
                for (i=0; i<tags.length; i++) { 
                        $(obj).addTag(tags[i],{focus:false,callback:false});
                }
                if(tags_callbacks[id] && tags_callbacks[id]['onChange'])
                {
                        var f = tags_callbacks[id]['onChange'];
                        f.call(obj, obj, tags[i]);
                }
        };

})(jQuery);