updated minified version

https://github.com/xoxco/jQuery-Tags-Input/issues/28
onChange now receives the tag added or removed.

README

@@ -1,4 +1,4 @@
-jQuery Tags Input Plugin 1.3
+jQuery Tags Input Plugin 1.3.2
 
 Copyright (c) 2011 XOXCO, Inc
 
@@ -47,7 +47,9 @@ $('#tags').tagsInput({
   autocomplete_url:'http://myserver.com/api/autocomplete'
 });
 
-You can also send in options to the autocomplete plugin, as described here.
+If you're using the bassistance jQuery.autocomplete, which takes extra 
+parameters, you can also send in options to the autocomplete plugin, as 
+described here.
 
 $('#tags').tagsInput({    
   autocomplete_url:'http://myserver.com/api/autocomplete',
@@ -59,6 +61,18 @@ You can add and remove tags by calling the addTag() and removeTag() functions.
 $('#tags').addTag('foo');
 $('#tags').removeTag('bar');
 
+You can import a list of tags using the importTags() function...
+
+$('#tags').importTags('foo,bar,baz');
+
+You can also use importTags() to reset the tag list...
+
+$('#tags').importTags('');
+
+And you can check if a tag exists using tagExist()...
+
+if ($('#tags').tagExist('foo')) { ... }
+
 If additional functionality is required when a tag is added or removed, you may
 specify callback functions via the onAddTag and onRemoveTag parameters.  Both 
 functions should accept a single tag as the parameter.

jquery.tagsinput.css

@@ -4,3 +4,4 @@ div.tagsinput span.tag a { font-weight: bold; color: #82ad2b; text-decoration:no
 div.tagsinput input { width:80px; margin:0px; font-family: helvetica; font-size: 13px; border:1px solid transparent; padding:5px; background: transparent; color: #000; outline:0px;  margin-right:5px; margin-bottom:5px; }
 div.tagsinput div { display:block; float: left; } 
 .tags_clear { clear: both; width: 100%; height: 0px; }
+.not_valid {background: #FBD8DB !important; color: #90111A !important;}

jquery.tagsinput.js

@@ -1,6 +1,6 @@
 /*
 
-	jQuery Tags Input Plugin 1.3
+	jQuery Tags Input Plugin 1.3.2
 	
 	Copyright (c) 2011 XOXCO, Inc
 	
@@ -18,12 +18,65 @@
 
 	var delimiter = new Array();
 	var tags_callbacks = new Array();
-	var gotAutoComplete = false;
+	$.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) {
-			var options = jQuery.extend({focus:false,callback:true},options);
+			options = jQuery.extend({focus:false,callback:true},options);
 			this.each(function() { 
-				id = $(this).attr('id');
+				var id = $(this).attr('id');
 
 				var tagslist = $(this).val().split(delimiter[id]);
 				if (tagslist[0] == '') { 
@@ -33,11 +86,15 @@
 				value = jQuery.trim(value);
 		
 				if (options.unique) {
-					skipTag = $(tagslist).tagExist(value);
+					var skipTag = $(tagslist).tagExist(value);
+					if(skipTag == true) {
+					    //Marks fake input as not_valid to let styling it
+    				    $('#'+id+'_tag').addClass('not_valid');
+    				}
 				} else {
-					skipTag = false; 
+					var skipTag = false; 
 				}
-
+				
 				if (value !='' && skipTag != true) { 
                     $('<span>').addClass('tag').append(
                         $('<span>').text(value).append('&nbsp;&nbsp;'),
@@ -59,18 +116,19 @@
 						$('#'+id+'_tag').blur();
 					}
 					
+					$.fn.tagsInput.updateTagsField(this,tagslist);
+					
 					if (options.callback && tags_callbacks[id] && tags_callbacks[id]['onAddTag']) {
 						var f = tags_callbacks[id]['onAddTag'];
-						f(value);
+						f.call(this, value);
 					}
 					if(tags_callbacks[id] && tags_callbacks[id]['onChange'])
 					{
 						var i = tagslist.length;
 						var f = tags_callbacks[id]['onChange'];
-						f($(this), tagslist[i]);
+						f.call(this, $(this), tagslist[i-1]);
 					}					
 				}
-				$.fn.tagsInput.updateTagsField(this,tagslist);
 		
 			});		
 			
@@ -80,11 +138,10 @@
 	$.fn.removeTag = function(value) { 
 			value = unescape(value);
 			this.each(function() { 
-				id = $(this).attr('id');
+				var id = $(this).attr('id');
 	
 				var old = $(this).val().split(delimiter[id]);
-	
-				
+					
 				$('#'+id+'_tagsinput .tag').remove();
 				str = '';
 				for (i=0; i< old.length; i++) { 
@@ -97,7 +154,7 @@
 
 				if (tags_callbacks[id] && tags_callbacks[id]['onRemoveTag']) {
 					var f = tags_callbacks[id]['onRemoveTag'];
-					f(value);
+					f.call(this, value);
 				}
 			});
 					
@@ -105,15 +162,12 @@
 		};
 	
 	$.fn.tagExist = function(val) {
-		if (jQuery.inArray(val, $(this)) == -1) {
-		  return false; /* Cannot find value in array */
-		} else {
-		  return true; /* Value found */
-		}
+		return (jQuery.inArray(val, $(this)) >= 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);
 	}
@@ -125,12 +179,15 @@
       minChars:0,
       width:'300px',
       height:'100px',
+      autocomplete: {selectFirst: false },
       'hide':true,
       'delimiter':',',
-      autocomplete:{},
       'unique':true,
       removeWithBackspace:true,
-      placeholderColor:'#666666'
+      placeholderColor:'#666666',
+      autosize: true,
+      comfortZone: 20,
+      inputPadding: 6*2,
     },options);
 
 		this.each(function() { 
@@ -138,9 +195,9 @@
 				$(this).hide();				
 			}
 				
-			id = $(this).attr('id')
+			var id = $(this).attr('id')
 			
-			data = jQuery.extend({
+			var data = jQuery.extend({
 				pid:id,
 				real_input: '#'+id,
 				holder: '#'+id+'_tagsinput',
@@ -148,7 +205,6 @@
 				fake_input: '#'+id+'_tag'
 			},settings);
 	
-	
 			delimiter[id] = data.delimiter;
 			
 			if (settings.onAddTag || settings.onRemoveTag || settings.onChange) {
@@ -176,7 +232,8 @@
 			}		
 			if (settings.interactive) { 
 				$(data.fake_input).val($(data.fake_input).attr('data-default'));
-				$(data.fake_input).css('color',settings.placeholderColor);		
+				$(data.fake_input).css('color',settings.placeholderColor);
+		        $(data.fake_input).resetAutosize(settings);
 		
 				$(data.holder).bind('click',data,function(event) {
 					$(event.data.fake_input).focus();
@@ -190,36 +247,27 @@
 				});
 						
 				if (settings.autocomplete_url != undefined) {
-				  autocomplete_options = {source: settings.autocomplete_url};
-				  for (attrname in settings.autocomplete) { 
-				    autocomplete_options[attrname] = settings.autocomplete[attrname]; 
-				  }
-          
-					$(data.fake_input).autocomplete(autocomplete_options).bind('autocompleteselect',data,function(event,ui) {
-            gotAutoComplete = true;
-					  $(event.data.real_input).addTag(ui.item.value,{focus:true,unique:(settings.unique)});
-					  return false;
-          });
+					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;
+						});
+					}
+				
 					
-					
-          $(data.fake_input).bind('blur',data,function(event) {
-            setTimeout(function() {
-              if(gotAutoComplete == true) {
-                gotAutoComplete = false;
-                return false;
-              }
-              if ( $(event.data.fake_input).val() != $(event.data.fake_input).attr('data-default')) {
-                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:false,unique:(settings.unique)});						
-                }
-              }
-
-              $(event.data.fake_input).val($(event.data.fake_input).attr('data-default'));
-              $(event.data.fake_input).css('color',settings.placeholderColor);              
-            }, 100);
-            return false;
-					});
-			
 				} else {
 						// if a user tabs out of the field, create a new tag
 						// this is only available if autocomplete is not used.
@@ -237,13 +285,17 @@
 				
 				}
 				// if user types a comma, create a new tag
-				$(data.fake_input).bind('keypress',data,function(event) { 
+				$(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 && $(data.fake_input).bind('keydown', function(event)
@@ -256,9 +308,18 @@
 						 last_tag = last_tag.replace(/[\s]+x$/, '');
 						 $('#' + 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 false;
 		});
@@ -268,13 +329,13 @@
 	};
 	
 	$.fn.tagsInput.updateTagsField = function(obj,tagslist) { 
-		id = $(obj).attr('id');
+		var id = $(obj).attr('id');
 		$(obj).val(tagslist.join(delimiter[id]));
 	};
 	
 	$.fn.tagsInput.importTags = function(obj,val) {			
 		$(obj).val('');
-		id = $(obj).attr('id');
+		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});
@@ -282,7 +343,7 @@
 		if(tags_callbacks[id] && tags_callbacks[id]['onChange'])
 		{
 			var f = tags_callbacks[id]['onChange'];
-			f(obj, tags[i]);
+			f.call(obj, obj, tags[i]);
 		}
 	};
 

test.html

@@ -25,7 +25,12 @@
 			alert("Removed a tag: " + tag);
 		}
 		
+		function onChangeTag(input,tag) {
+			alert("Changed a tag: " + tag);
+		}
+		
 		$(function() {
+
 			$('#tags_1').tagsInput();
 			$('#tags_2').tagsInput({
 				onChange: function(elem, elem_tags)
@@ -43,8 +48,9 @@
 				autocomplete_url:'test/fake_json_endpoint.html' // jquery ui autocomplete requires a json endpoint
 			});
 			
+
 // Uncomment this line to see the callback functions in action
-//			$('input.tags').tagsInput({onAddTag:onAddTag,onRemoveTag:onRemoveTag});		
+//			$('input.tags').tagsInput({onAddTag:onAddTag,onRemoveTag:onRemoveTag,onChange: onChangeTag});		
 
 // Uncomment this line to see an input with no interface for adding new tags.
 //			$('input.tags').tagsInput({interactive:false});