(function ($) { "use strict"; var defaultOptions = { tagClass: function(item) { return 'label label-info'; }, itemValue: function(item) { return item ? item.toString() : item; }, itemText: function(item) { return this.itemValue(item); }, freeInput : true }; function TagsInput(element, options) { this.itemsArray = []; this.$element = $(element); this.$element.hide(); this.isSelect = (element.tagName === 'SELECT'); this.multiple = (this.isSelect && element.hasAttribute('multiple')); this.objectItems = options && options.itemValue; this.$container = $('
'); this.$input = $('').appendTo(this.$container); this.$element.after(this.$container); this.build(options); } TagsInput.prototype = { constructor: TagsInput, add: function(item, dontPushVal) { var self = this; // Ignore falsey values, except false if (item !== false && !item) return; // Throw an error when trying to add an object while the itemValue option was not set if (typeof item === "object" && !self.objectItems) throw("Can't add objects when itemValue option is not set"); // Ignore strings only containg whitespace if (item.toString().match(/^\s*$/)) return; // If SELECT but not multiple, remove current tag if (self.isSelect && !self.multiple && self.itemsArray.length > 0) self.remove(self.itemsArray[0]); if (typeof item === "string" && this.$element[0].tagName === 'INPUT') { var items = item.split(','); if (items.length > 1) { for (var i = 0; i < items.length; i++) { this.add(items[i], true); } if (!dontPushVal) self.pushVal(); return; } } // Ignore items allready added var itemValue = self.options.itemValue(item), itemText = self.options.itemText(item), tagClass = self.options.tagClass(item); if ($.grep(self.itemsArray, function(item) { return self.options.itemValue(item) === itemValue; } )[0]) return; // register item in internal array and map self.itemsArray.push(item); // add a tag element var $tag = $('' + htmlEncode(itemText) + ''); $tag.data('item', item); self.$input.before($tag); // add if item represents a value not present in one of the 's options if (self.isSelect && !$('option[value="' + escape(itemValue) + '"]')[0]) { var $option = $(''); $option.data('item', item); $option.attr('value', itemValue); self.$element.append($option); } if (!dontPushVal) self.pushVal(); self.$element.trigger($.Event('itemAdded', { item: item })); }, remove: function(item, dontPushVal) { var self = this; if (self.objectItems) { if (typeof item === "object") item = $.grep(self.itemsArray, function(other) { return self.options.itemValue(other) == self.options.itemValue(item); } )[0]; else item = $.grep(self.itemsArray, function(other) { return self.options.itemValue(other) == item; } )[0]; } if (item) { $('.tag', self.$container).filter(function() { return $(this).data('item') === item; }).remove(); $('option', self.$element).filter(function() { return $(this).data('item') === item; }).remove(); self.itemsArray.splice(self.itemsArray.indexOf(item), 1); } if (!dontPushVal) self.pushVal(); self.$element.trigger($.Event('itemRemoved', { item: item })); }, removeAll: function() { var self = this; $('.tag', self.$container).remove(); $('option', self.$element).remove(); while(self.itemsArray.length > 0) self.itemsArray.pop(); self.pushVal(); }, refresh: function() { var self = this; $('.tag', self.$container).each(function() { var $tag = $(this), item = $tag.data('item'), itemValue = self.options.itemValue(item), itemText = self.options.itemText(item), tagClass = self.options.tagClass(item); // Update tag's class and inner text $tag.attr('class', null); $tag.addClass('tag ' + htmlEncode(tagClass)); $tag.contents().filter(function() { return this.nodeType == 3; })[0].nodeValue = htmlEncode(itemText); if (self.isSelect) { var option = $('option', self.$element).filter(function() { return $(this).data('item') === item; }); option.attr('value', itemValue); } }); }, // Returns the items added as tags items: function() { return this.itemsArray; }, // Assembly value by retrieving the value of each item, and set it on the element. pushVal: function() { var self = this, val = $.map(self.items(), function(item) { return self.options.itemValue(item).toString(); }); self.$element.val(val, true).trigger('change'); }, build: function(options) { var self = this; self.options = $.extend({}, defaultOptions, options); var typeahead = self.options.typeahead || {}; // When itemValue is set, freeInput should always be false if (self.objectItems) self.options.freeInput = false; makeOptionItemFunction(self.options, 'itemValue'); makeOptionItemFunction(self.options, 'itemText'); makeOptionItemFunction(self.options, 'tagClass'); // for backwards compatibility, self.options.source is deprecated if (self.options.source) typeahead.source = self.options.source; if (typeahead.source && $.fn.typeahead) { makeOptionFunction(typeahead, 'source'); self.$input.typeahead({ source: function (query, process) { function processItems(items) { var texts = []; for (var i = 0; i < items.length; i++) { var text = self.options.itemText(items[i]); map[text] = items[i]; texts.push(text); } process(texts); } this.map = {}; var map = this.map, data = typeahead.source(query); if ($.isFunction(data.success)) { // support for Angular promises data.success(processItems); } else { // support for functions and jquery promises $.when(data) .then(processItems); } }, updater: function (text) { self.add(this.map[text]); }, matcher: function (text) { return (text.toLowerCase().indexOf(this.query.trim().toLowerCase()) !== -1); }, sorter: function (texts) { return texts.sort(); }, highlighter: function (text) { var regex = new RegExp( '(' + this.query + ')', 'gi' ); return text.replace( regex, "$1" ); } }); } self.$container.on('click', $.proxy(function(event) { self.$input.focus(); }, self)); self.$container.on('keydown', 'input', $.proxy(function(event) { var $input = $(event.target); switch (event.which) { // BACKSPACE case 8: if (doGetCaretPosition($input[0]) === 0) { var prev = $input.prev(); if (prev) { self.remove(prev.data('item')); } } break; // DELETE case 46: if (doGetCaretPosition($input[0]) === 0) { var next = $input.next(); if (next) { self.remove(next.data('item')); } } break; // LEFT ARROW case 37: // Try to move the input before the previous tag var $prevTag = $input.prev(); if ($input.val().length === 0 && $prevTag[0]) { $prevTag.before($input); $input.focus(); } break; // LEFT ARROW case 39: // Try to move the input before the previous tag var $nextTag = $input.next(); if ($input.val().length === 0 && $nextTag[0]) { $nextTag.after($input); $input.focus(); } break; case 188: // COMMA case 13: // ENTER if (self.options.freeInput) { self.add($input.val()); $input.val(''); event.preventDefault(); } break; } $input.attr('size', Math.max(100, $input.val().length)); }, self)); // Remove icon clicked self.$container.on('click', '[data-role=remove]', $.proxy(function(event) { self.remove($(event.target).closest('.tag').data('item')); }, self)); if (self.$element[0].tagName === 'INPUT') { self.add(self.$element.val()); } else { $('option', self.$element).each(function() { self.add($(this).attr('value'), true); }); } }, destroy: function() { var self = this; // Unbind events self.$container.off('keypress', 'input'); self.$container.off('click', '[50role=remove]'); self.$container.remove(); self.$element.removeData('tagsinput'); self.$element.show(); }, focus: function() { this.$input.focus(); } }; // Register JQuery plugin $.fn.tagsinput = function(arg1, arg2) { var results = []; this.each(function() { var tagsinput = $(this).data('tagsinput'); // Initialize a new tags input if (!tagsinput) { tagsinput = new TagsInput(this, arg1); $(this).data('tagsinput', tagsinput); results.push(tagsinput); if (this.tagName === 'SELECT') { $('option', $(this)).attr('selected', 'selected'); } // Init tags from $(this).val() $(this).val($(this).val()); } else { // Invoke function on existing tags input var retVal = tagsinput[arg1](arg2); if (retVal !== undefined) results.push(retVal); } }); if ( typeof arg1 == 'string') { // Return the results from the invoked function calls return results.length > 1 ? results : results[0]; } else { return results; } }; $.fn.tagsinput.Constructor = TagsInput; // Most options support both a string or number as well as a function as // option value. This function makes sure that the option with the given // key in the given options is wrapped in a function function makeOptionItemFunction(options, key) { if (typeof options[key] !== 'function') { var value = options[key]; options[key] = function(item) { return item[value]; }; } } function makeOptionFunction(options, key) { if (typeof options[key] !== 'function') { var value = options[key]; options[key] = function() { return value; }; } } // HtmlEncodes the given value var htmlEncodeContainer = $(''); function htmlEncode(value) { if (value) { return htmlEncodeContainer.text(value).html(); } else { return ''; } } // Returns the position of the caret in the given input field // http://flightschool.acylt.com/devnotes/caret-position-woes/ function doGetCaretPosition(oField) { var iCaretPos = 0; if (document.selection) { oField.focus (); var oSel = document.selection.createRange(); oSel.moveStart ('character', -oField.value.length); iCaretPos = oSel.text.length; } else if (oField.selectionStart || oField.selectionStart == '0') { iCaretPos = oField.selectionStart; } return (iCaretPos); } $(function() { $("input[data-role=tagsinput], select[multiple][data-role=tagsinput]").tagsinput(); }); })(window.jQuery);