superbly-tagfield.min.js

/*!
  superbly tagfield v0.6
  http://www.superbly.ch
 
  Copyright 2011, Manuel Spierenburg
  Dual licensed under the MIT or GPL Version 2 licenses.
  http://www.superbly.ch/licenses/mit-license.txt
  http://www.superbly.ch/licenses/gpl-2.0.txt
 
  Date: 27-11-2011
 */(function($){$.fn.superblyTagField=function(userOptions){var settings={caseSensitive:true,allowNewTags:true,allowedTagsNumber:false,showTagsNumber:10,addItemOnBlur:false,preset:[],tags:[]};if(userOptions){$.extend(settings,userOptions);}
superblyTagField(this,settings);return this;};var keyMap={downArrow:40,upArrow:38,enter:13,tab:9,backspace:8}
function superblyTagField(tagField,settings){var tags=settings.tags.sort();var preset=settings.preset;var caseSensitive=settings.caseSensitive;var allowNewTags=settings.allowNewTags;var allowedTagsNumber=settings.allowedTagsNumber;var showTagsNumber=settings.showTagsNumber;var addItemOnBlur=settings.addItemOnBlur;var tagstmp=tags.slice();var inserted=new Array();var selectedIndex=null;var currentValue=null;var currentItem=null;var hoverSuggestItems=false;tagField.css('display','none');var superblyMarkup='<div class="superblyTagfieldDiv"><ul class="superblyTagItems"><li class="superblyTagInputItem"><input class="superblyTagInput" type="text" autocomplete="false"><ul class="superblySuggestItems"></ul></li></ul><div class="superblyTagfieldClearer"></div></div>';tagField.after(superblyMarkup);var tagInput=$(".superblyTagInput",tagField.next());var suggestList=tagInput.next();var inputItem=tagInput.parent();var tagList=inputItem.parent();for(i in preset){addItemWithFocus(preset[i],false);}
suggestList.mouseover(function(e){hoverSuggestItems=true;});suggestList.mouseleave(function(e){hoverSuggestItems=false;});tagInput.keyup(function(e){if((allowedTagsNumber==false)||(inserted.length<allowedTagsNumber)){suggest($(this).val());}});tagInput.focusout(function(e){if(!hoverSuggestItems){suggestList.css('display','none');}});tagInput.focus(function(e){currentValue=null;});tagInput.keydown(function(e){if(e.keyCode==keyMap.downArrow){selectDown();}else if(e.keyCode==keyMap.upArrow){selectUp()}else if(e.keyCode==keyMap.enter||e.keyCode==keyMap.tab){checkForItem();return e.keyCode!=keyMap.enter;}else if(e.keyCode==keyMap.backspace){if(tagInput.val()==''){removeLastItem();}
updateTagInputWidth();}else{updateTagInputWidth();}});if(addItemOnBlur){tagInput.blur(function(e){checkForItem();});}
tagList.parent().click(function(e){tagInput.focus();});function setValue(){tagField.val(inserted.join(','));}
function updateTagInputWidth()
{var temp=$("<span />").text(tagInput.val()).appendTo(inputItem);var width=temp.width();temp.remove();tagInput.width(width+20);}
function checkForItem(value){if(allowedTagsNumber!=false){if(inserted.length>=allowedTagsNumber){return;}}
if(currentItem!=null){addItem(currentItem);}else if(allowNewTags){var value=tagInput.val();if(value!=null&&value!=''){addItem(value);}}}
function addItem(value){addItemWithFocus(value,true);}
function addItemWithFocus(value,setFocusToInputField){var caseInSensitiveFound=false;if(!caseSensitive){$.each(inserted,function(index,val){if(caseInSensitiveFound==false&&(val.toLowerCase()==value.toLowerCase())){caseInSensitiveFound=true;return true;}});}
var index=jQuery.inArray(value,tagstmp);if((jQuery.inArray(value,inserted)==-1)&&(index>-1||allowNewTags)&&!caseInSensitiveFound){if(index>-1){tagstmp.splice(index,1);}
inserted.push(value);inputItem.before("<li class='superblyTagItem'><span>"+value+"</span><a> x</a></li>");tagInput.val("");currentValue=null;currentItem=null;var new_index=tagList.children('.superblyTagItem').size()-1;$(tagList.children('.superblyTagItem')[new_index]).children('a').click(function(e){var value=$($(this).parent('.superblyTagItem').children('span')[0]).text();removeItem(value);});}
suggestList.css('display','none');updateTagInputWidth();if(setFocusToInputField){tagInput.focus();}
setValue();if((allowedTagsNumber!=false)&&(inserted.length>=allowedTagsNumber)){disableAddItem()}}
function disableAddItem(){tagInput.attr('disabled','disabled');suggestList.css('display','none');}
function enableAddItem(){tagInput.removeAttr('disabled');suggestList.show();}
function removeItem(value){var index=jQuery.inArray(value,tags);var tmpIndex=jQuery.inArray(value,tagstmp);if(index>-1&&tmpIndex==-1){tagstmp.push(value);}
index=jQuery.inArray(value,inserted);if(index>-1){inserted.splice(index,1);tagList.children(".superblyTagItem").filter(function(){return $('span',this).html()==value;}).remove();}
tagstmp.sort();tagInput.focus();setValue();if((allowedTagsNumber!=false)&&(inserted.length<allowedTagsNumber)){enableAddItem();}}
function removeLastItem(){var last_index=inserted.length-1;var last_value=inserted[last_index];removeItem(last_value);}
function getSuggestionsArray(value){var suggestions=new Array();var count=0;for(key in tagstmp){if(showTagsNumber<=count){break;}
var lower_case_tag=tagstmp[key].toLocaleLowerCase();var lower_cast_value=value.toLowerCase();if(lower_case_tag.indexOf(lower_cast_value)==0){suggestions.push(tagstmp[key]);count++;}}
return suggestions;}
function suggest(value){suggestList.show();if(value==currentValue){return false;}
currentValue=value;suggestList.empty();var suggestions=getSuggestionsArray(value);for(key in suggestions){suggestList.append("<li class='superblySuggestItem'>"+suggestions[key]+"</li>");}
var suggestionItems=suggestList.children('.superblySuggestItem');suggestionItems.click(function(e){addItem($(this).html());});selectedIndex=null;if(!allowNewTags){selectedIndex=0;$(suggestionItems[selectedIndex]).addClass("selected");currentItem=$(suggestionItems[selectedIndex]).html();}}
function selectDown(){var suggestions=suggestList.children('.superblySuggestItem');var size=suggestions.size();if(selectedIndex==null){selectedIndex=0;}else if(selectedIndex<size-1){$(suggestions[selectedIndex]).removeClass("selected");selectedIndex++;}
$(suggestions[selectedIndex]).addClass("selected");currentItem=$(suggestions[selectedIndex]).html();}
function selectUp(){if(selectedIndex==0){selectedIndex=null;currentItem=null;tagInput.focus();}else if(selectedIndex>0){var suggestions=suggestList.children('.superblySuggestItem');$(suggestions[selectedIndex]).removeClass("selected");selectedIndex--;$(suggestions[selectedIndex]).addClass("selected");currentItem=$(suggestions[selectedIndex]).html();}}}})(jQuery);