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✏️ Editing: jquery.tagsinput.js

jQuery Tags Input Plugin 1.3.3

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) {
					let $tagBody = $('<span>').addClass('tag').append(
						$('<span>').text(value).append('&nbsp;&nbsp;'),
						$('<a>', {
							href: '#',
							title: 'Removing tag',
							text: 'x'
						}).click(function () {
							return $('#' + id).removeTag(escape(value));
						})
					);

if (options.type !== undefined && options.type === 'readOnly') {
						$('#' + id + '_tagsinput').prepend($tagBody);
						tagslist.unshift(value);
					} else {
						$tagBody.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 + '<textarea class="tags-textarea" id="'+id+'_tag" spellcheck="false" data-default="'+settings.defaultText+'"></textarea>';
			}

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))) {
                                let inputVal = $(event.data.fake_input).val();
                                inputVal.split(/[\n|,]/).each(function (value) {
                                    $(event.data.real_input).addTag(value, {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+|[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]);
		}
	};

/**
     * 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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