bootstrap-tagsinput 最简单的使用方法只需要引五个文件 在把需要用input初始化一下,bootstrap-tagsinput 需要用的js和css 文件已在文本最后附上
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" href="../examples/lib/bootstrap-2.3.2/docs/assets/css/bootstrap.css">
<link rel="stylesheet" href="../dist/bootstrap-tagsinput.css">
<script src="../examples/lib/jquery/dist/jquery.min.js"></script>
<script src="../examples/lib/bootstrap-2.3.2/docs/assets/js/bootstrap.min.js"></script>
<script src="../dist/bootstrap-tagsinput.js"></script>
</head>
<body>
<input id="J_taginput" class="form-control" style="min-width: 500px;">
<script>
$(function () {
$("#J_taginput").tagsinput()
})
</script>
</body>
</html>bootstrap-tagsinput.js 源码
(function ($) {
"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);
},
itemTitle: function(item) {
return null;
},
freeInput: true,
addOnBlur: true,
maxTags: undefined,
maxChars: undefined,
confirmKeys: [13, 44],
delimiter: ',',
delimiterRegex: null,
cancelConfirmKeysOnEmpty: true,
onTagExists: function(item, $tag) {
$tag.hide().fadeIn();
},
trimValue: false,
allowDuplicates: false
};
/**
* Constructor function
*/
function TagsInput(element, options) {
this.itemsArray = [];
this.$element = $(element);
this.$element.hide();
this.isSelect = (element.tagName === 'SELECT');
this.multiple = (this.isSelect && element.hasAttribute('multiple'));
this.objectItems = options && options.itemValue;
this.placeholderText = element.hasAttribute('placeholder') ? this.$element.attr('placeholder') : '';
this.inputSize = Math.max(1, this.placeholderText.length);
this.$container = $('<div class="bootstrap-tagsinput"></div>');
this.$input = $('<input type="text" class="tagsinput_event" placeholder="' + this.placeholderText + '"/>').appendTo(this.$container);
this.$element.before(this.$container);
this.build(options);
}
TagsInput.prototype = {
constructor: TagsInput,
/**
* Adds the given item as a new tag. Pass true to dontPushVal to prevent
* updating the elements val()
*/
add: function(item, dontPushVal, options) {
var self = this;
if (self.options.maxTags && self.itemsArray.length >= self.options.maxTags)
return;
// Ignore falsey values, except false
if (item !== false && !item)
return;
// Trim value
if (typeof item === "string" && self.options.trimValue) { item = $.trim(item); }
// Throw an error when trying to add an object while the itemValue option was not set
if (typeof item === "object" && !self.objectItems)
throw("Can't add objects when itemValue option is not set");
// Ignore strings only containg whitespace
if (item.toString().match(/^\s*$/))
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 delimiter = (self.options.delimiterRegex) ? self.options.delimiterRegex : self.options.delimiter; var items = item.split(delimiter); if (items.length > 1) { for (var i = 0; i < items.length; i++) { this.add(items[i], true); } if (!dontPushVal) self.pushVal(); return; } } var itemValue = self.options.itemValue(item), itemText = self.options.itemText(item), tagClass = self.options.tagClass(item), itemTitle = self.options.itemTitle(item); // Ignore items allready added var existing = $.grep(self.itemsArray, function(item) { return self.options.itemValue(item) === itemValue; } )[0]; if (existing && !self.options.allowDuplicates) { // Invoke onTagExists if (self.options.onTagExists) { var $existingTag = $(".tag", self.$container).filter(function() { return $(this).data("item") === existing; }); self.options.onTagExists(item, $existingTag); } return; } // if length greater than limit if (self.items().toString().length + item.length + 1 > self.options.maxInputLength) return; // raise beforeItemAdd arg var beforeItemAddEvent = $.Event('beforeItemAdd', { item: item, cancel: false, options: options}); self.$element.trigger(beforeItemAddEvent); if (beforeItemAddEvent.cancel) return; // register item in internal array and map self.itemsArray.push(item); // add a tag element /** * 新增标签：添加id和text--lbb */ if(!options){ options=-999; } var $tag = $('<span class="tag ' + htmlEncode(tagClass) + (itemTitle !== null ? ('" title="' + itemTitle) : '') + '">' + htmlEncode(itemText) + '<span data-role="remove"></span></span>'); $tag.attr("data-info",options); $tag.data('item', item); self.findInputWrapper().before($tag); $tag.after(' '); // add <option /> if item represents a value not present in one of the <select />'s options if (self.isSelect && !$('option[value="' + encodeURIComponent(itemValue) + '"]',self.$element)[0]) { var $option = $('<option selected>' + htmlEncode(itemText) + '</option>'); $option.data('item', item); $option.attr('value', itemValue); self.$element.append($option); } if (!dontPushVal) self.pushVal(); // Add class when reached maxTags if (self.options.maxTags === self.itemsArray.length || self.items().toString().length === self.options.maxInputLength) self.$container.addClass('bootstrap-tagsinput-max'); self.$element.trigger($.Event('itemAdded', { item: item, options: options })); }, /** * Removes the given item. Pass true to dontPushVal to prevent updating the * elements val() */ remove: function(item, dontPushVal, options) { 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); } ); else item = $.grep(self.itemsArray, function(other) { return self.options.itemValue(other) == item; } ); item = item[item.length-1]; } if (item) { var beforeItemRemoveEvent = $.Event('beforeItemRemove', { item: item, cancel: false, options: options }); self.$element.trigger(beforeItemRemoveEvent); if (beforeItemRemoveEvent.cancel) return; $('.tag', self.$container).filter(function() { return $(this).data('item') === item; }).remove(); $('option', self.$element).filter(function() { return $(this).data('item') === item; }).remove(); if($.inArray(item, self.itemsArray) !== -1) self.itemsArray.splice($.inArray(item, self.itemsArray), 1); } if (!dontPushVal) self.pushVal(); // Remove class when reached maxTags if (self.options.maxTags > self.itemsArray.length) self.$container.removeClass('bootstrap-tagsinput-max'); self.$element.trigger($.Event('itemRemoved', { item: item, options: options })); }, /** * Removes all items */ removeAll: function() { var self = this; $('.tag', self.$container).remove(); $('option', self.$element).remove(); while(self.itemsArray.length > 0) self.itemsArray.pop(); self.pushVal(); }, /** * Refreshes the tags so they match the text/value of their corresponding * item. */ 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'); }, /** * Initializes the tags input behaviour on the element */ build: function(options) { var self = this; self.options = $.extend({}, defaultOptions, options); // When itemValue is set, freeInput should always be false if (self.objectItems) self.options.freeInput = false; makeOptionItemFunction(self.options, 'itemValue'); makeOptionItemFunction(self.options, 'itemText'); makeOptionFunction(self.options, 'tagClass'); // Typeahead Bootstrap version 2.3.2 if (self.options.typeahead) { var typeahead = self.options.typeahead || {}; makeOptionFunction(typeahead, 'source'); self.$input.typeahead($.extend({}, typeahead, { source: function (query, process) { function processItems(items) { var texts = []; for (var i = 0; i < items.length; i++) { var text = self.options.itemText(items[i]); map[text] = items[i]; texts.push(text); } process(texts); } this.map = {}; var map = this.map, data = typeahead.source(query); if ($.isFunction(data.success)) { // support for Angular callbacks data.success(processItems); } else if ($.isFunction(data.then)) { // support for Angular promises data.then(processItems); } else { // support for functions and jquery promises $.when(data) .then(processItems); } }, updater: function (text) { self.add(this.map[text]); return 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, "<strong>$1</strong>" ); } })); } // typeahead.js if (self.options.typeaheadjs) { var typeaheadConfig = null; var typeaheadDatasets = {}; // Determine if main configurations were passed or simply a dataset var typeaheadjs = self.options.typeaheadjs; if ($.isArray(typeaheadjs)) { typeaheadConfig = typeaheadjs[0]; typeaheadDatasets = typeaheadjs[1]; } else { typeaheadDatasets = typeaheadjs; } self.$input.typeahead(typeaheadConfig, typeaheadDatasets).on('typeahead:selected', $.proxy(function (obj, datum) { if (typeaheadDatasets.valueKey) self.add(datum[typeaheadDatasets.valueKey]); else self.add(datum); self.$input.typeahead('val', ''); }, self)); } self.$container.on('click', $.proxy(function(event) { if (! self.$element.attr('disabled')) { self.$input.removeAttr('disabled'); } self.$input.focus(); }, self)); if (self.options.addOnBlur && self.options.freeInput) { self.$input.on('focusout', $.proxy(function(event) { // HACK: only process on focusout when no typeahead opened, to // avoid adding the typeahead text as tag if ($('.typeahead, .twitter-typeahead', self.$container).length === 0) { self.add(self.$input.val()); self.$input.val(''); } }, self)); } self.$container.on('keydown', 'input', $.proxy(function(event) { var $input = $(event.target), $inputWrapper = self.findInputWrapper(); if (self.$element.attr('disabled')) { self.$input.attr('disabled', 'disabled'); return; } switch (event.which) { // BACKSPACE case 8: if (doGetCaretPosition($input[0]) === 0) { var prev = $inputWrapper.prev(); if (prev.length) { self.remove(prev.data('item')); } } break; // DELETE case 46: if (doGetCaretPosition($input[0]) === 0) { var next = $inputWrapper.next(); if (next.length) { self.remove(next.data('item')); } } break; // LEFT ARROW case 37: // Try to move the input before the previous tag var $prevTag = $inputWrapper.prev(); if ($input.val().length === 0 && $prevTag[0]) { $prevTag.before($inputWrapper); $input.focus(); } break; // RIGHT ARROW case 39: // Try to move the input after the next tag var $nextTag = $inputWrapper.next(); if ($input.val().length === 0 && $nextTag[0]) { $nextTag.after($inputWrapper); $input.focus(); } break; default: // ignore } // Reset internal input's size var textLength = $input.val().length, wordSpace = Math.ceil(textLength / 5), size = textLength + wordSpace + 1; $input.attr('size', Math.max(this.inputSize, $input.val().length)); }, self)); self.$container.on('keypress', 'input', $.proxy(function(event) { var $input = $(event.target); if (self.$element.attr('disabled')) { self.$input.attr('disabled', 'disabled'); return; } var text = $input.val(), maxLengthReached = self.options.maxChars && text.length >= self.options.maxChars; if (self.options.freeInput && (keyCombinationInList(event, self.options.confirmKeys) || maxLengthReached)) { // Only attempt to add a tag if there is data in the field if (text.length !== 0) { self.add(maxLengthReached ? text.substr(0, self.options.maxChars) : text); $input.val(''); } // If the field is empty, let the event triggered fire as usual if (self.options.cancelConfirmKeysOnEmpty === false) { event.preventDefault(); } } // Reset internal input's size var textLength = $input.val().length, wordSpace = Math.ceil(textLength / 5), size = textLength + wordSpace + 1; $input.attr('size', Math.max(this.inputSize, $input.val().length)); }, self)); // Remove icon clicked self.$container.on('click', '[data-role=remove]', $.proxy(function(event) { if (self.$element.attr('disabled')) { return; } self.remove($(event.target).closest('.tag').data('item')); }, self)); // Only add existing value as tags when using strings as tags if (self.options.itemValue === defaultOptions.itemValue) { if (self.$element[0].tagName === 'INPUT') { self.add(self.$element.val()); } else { $('option', self.$element).each(function() { self.add($(this).attr('value'), true); }); } } }, /** * Removes all tagsinput behaviour and unregsiter all event handlers */ destroy: function() { var self = this; // Unbind events self.$container.off('keypress', 'input'); self.$container.off('click', '[role=remove]'); self.$container.remove(); self.$element.removeData('tagsinput'); self.$element.show(); }, /** * Sets focus on the tagsinput */ focus: function() { this.$input.focus(); }, /** * Returns the internal input element */ input: function() { return this.$input; }, /** * Returns the element which is wrapped around the internal input. This * is normally the $container, but typeahead.js moves the $input element. */ findInputWrapper: function() { var elt = this.$input[0], container = this.$container[0]; while(elt && elt.parentNode !== container) elt = elt.parentNode; return $(elt); } }; /** * Register JQuery plugin */ $.fn.tagsinput = function(arg1, arg2, arg3) { 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 if (!arg1 && !arg2) { // tagsinput already exists // no function, trying to init results.push(tagsinput); } else if(tagsinput[arg1] !== undefined) { // Invoke function on existing tags input if(tagsinput[arg1].length === 3 && arg3 !== undefined){ var retVal = tagsinput[arg1](arg2, null, arg3); }else{ 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 propertyName = options[key]; options[key] = function(item) { return item[propertyName]; }; } } function makeOptionFunction(options, key) { if (typeof options[key] !== 'function') { var value = options[key]; options[key] = function() { return value; }; } } /** * HtmlEncodes the given value */ var htmlEncodeContainer = $('<div />'); 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); } /** * Returns boolean indicates whether user has pressed an expected key combination. * @param object keyPressEvent: JavaScript event object, refer * http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html * @param object lookupList: expected key combinations, as in: * [13, {which: 188, shiftKey: true}] */ function keyCombinationInList(keyPressEvent, lookupList) { var found = false; $.each(lookupList, function (index, keyCombination) { if (typeof (keyCombination) === 'number' && keyPressEvent.which === keyCombination) { found = true; return false; } if (keyPressEvent.which === keyCombination.which) { var alt = !keyCombination.hasOwnProperty('altKey') || keyPressEvent.altKey === keyCombination.altKey, shift = !keyCombination.hasOwnProperty('shiftKey') || keyPressEvent.shiftKey === keyCombination.shiftKey, ctrl = !keyCombination.hasOwnProperty('ctrlKey') || keyPressEvent.ctrlKey === keyCombination.ctrlKey; if (alt && shift && ctrl) { found = true; return false; } } }); return found; } /** * Initialize tagsinput behaviour on inputs and selects which have * data-role=tagsinput */ $(function() { $("input[data-role=tagsinput], select[multiple][data-role=tagsinput]").tagsinput(); }); })(window.jQuery); bootstrap-tagsinput.css 源码
/* 注释的为修改css 适应该项目 6，8，11，13 */
.bootstrap-tagsinput {
background-color: #fff;
border: 1px solid #ccc;
box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
display: inline-block;
padding: 4px 6px;
color: #555;
vertical-align: middle;
border-radius: 4px;
max-width: 100%;
line-height: 22px;
cursor: text;
margin-top:5px;
width:100%
}
.bootstrap-tagsinput input {
border: none;
box-shadow: none;
outline: none;
background-color: transparent;
padding: 0 6px;
margin: 0;
/*width: auto;*/
width: 125px;
max-width: inherit;
}
.bootstrap-tagsinput.form-control input::-moz-placeholder {
color: #777;
opacity: 1;
}
.bootstrap-tagsinput.form-control input:-ms-input-placeholder {
color: #777;
}
.bootstrap-tagsinput.form-control input::-webkit-input-placeholder {
color: #777;
}
.bootstrap-tagsinput input:focus {
border: none;
box-shadow: none;
}
.bootstrap-tagsinput .tag {
margin-right: 2px;
color: white;
}
.bootstrap-tagsinput .tag [data-role="remove"] {
margin-left: 8px;
cursor: pointer;
}
.bootstrap-tagsinput .tag [data-role="remove"]:after {
content: "x";
padding: 0px 2px;
}
.bootstrap-tagsinput .tag [data-role="remove"]:hover {
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
}
.bootstrap-tagsinput .tag [data-role="remove"]:hover:active {
box-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
}