/*
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, '&').replace(/\s/g,' ').replace(/</g, '<').replace(/>/g, '>');
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(' '),
$('<a>', {
href : '#',
title : 'Removing tag',
text : 'x'
}).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) {
var id = $(this).attr('id');
$('#'+id+'_tagsinput .tag').remove();
$.fn.tagsInput.importTags(this,str);
}
$.fn.tagsInput = function(options) {
var settings = jQuery.extend({
interactive:true,
defaultText:'add a tag',
minChars:0,
width:'300px',
height:'100px',
autocomplete: {selectFirst: false },
hide:true,
delimiter: ',',
unique:true,
removeWithBackspace:true,
placeholderColor:'#666666',
autosize: true,
comfortZone: 20,
inputPadding: 6*2
},options);
var uniqueIdCounter = 0;
this.each(function() {
// If we have already initialized the field, do not do it again
if (typeof $(this).attr('data-tagsinput-init') !== 'undefined') {
return;
}
// Mark the field as having been initialized
$(this).attr('data-tagsinput-init', true);
if (settings.hide) {
$(this).hide();
}
var id = $(this).attr('id');
if (!id || delimiter[$(this).attr('id')]) {
id = $(this).attr('id', 'tags' + new Date().getTime() + (uniqueIdCounter++)).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 markup = '<div id="'+id+'_tagsinput" class="tagsinput"><div id="'+id+'_addTag">';
if (settings.interactive) {
markup = markup + '<input id="'+id+'_tag" value="" data-default="'+settings.defaultText+'" />';
}
markup = markup + '</div><div class="tags_clear"></div></div>';
$(markup).insertAfter(this);
$(data.holder).css('width',settings.width);
$(data.holder).css('min-height',settings.height);
$(data.holder).css('height',settings.height);
if ($(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 default delimiter like comma,semicolon and then create a new tag
$(data.fake_input).bind('keypress',data,function(event) {
if (_checkDelimiter(event)) {
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]+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+|[αινσϊΑΙΝΣΪρΡ,/]+/)) {
$(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]);
}
};
/**
* check delimiter Array
* @param event
* @returns {boolean}
* @private
*/
var _checkDelimiter = function(event){
var found = false;
if (event.which == 13) {
return true;
}
if (typeof event.data.delimiter === 'string') {
if (event.which == event.data.delimiter.charCodeAt(0)) {
found = true;
}
} else {
$.each(event.data.delimiter, function(index, delimiter) {
if (event.which == delimiter.charCodeAt(0)) {
found = true;
}
});
}
return found;
}
})(jQuery);
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