/**
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* Bootstrap Multiselect (https://github.com/davidstutz/bootstrap-multiselect)
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*
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* Apache License, Version 2.0:
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* Copyright (c) 2012 - 2015 David Stutz
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a
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* copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* BSD 3-Clause License:
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* Copyright (c) 2012 - 2015 David Stutz
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of David Stutz nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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!function ($) {
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"use strict";// jshint ;_;
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if (typeof ko !== 'undefined' && ko.bindingHandlers && !ko.bindingHandlers.multiselect) {
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ko.bindingHandlers.multiselect = {
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after: ['options', 'value', 'selectedOptions', 'enable', 'disable'],
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init: function(element, valueAccessor, allBindings, viewModel, bindingContext) {
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var $element = $(element);
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var config = ko.toJS(valueAccessor());
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$element.multiselect(config);
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if (allBindings.has('options')) {
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var options = allBindings.get('options');
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if (ko.isObservable(options)) {
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ko.computed({
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read: function() {
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options();
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setTimeout(function() {
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var ms = $element.data('multiselect');
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if (ms)
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ms.updateOriginalOptions();//Not sure how beneficial this is.
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$element.multiselect('rebuild');
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}, 1);
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},
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disposeWhenNodeIsRemoved: element
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});
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}
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}
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//value and selectedOptions are two-way, so these will be triggered even by our own actions.
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//It needs some way to tell if they are triggered because of us or because of outside change.
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//It doesn't loop but it's a waste of processing.
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if (allBindings.has('value')) {
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var value = allBindings.get('value');
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if (ko.isObservable(value)) {
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ko.computed({
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read: function() {
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value();
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setTimeout(function() {
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$element.multiselect('refresh');
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}, 1);
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},
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disposeWhenNodeIsRemoved: element
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}).extend({ rateLimit: 100, notifyWhenChangesStop: true });
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}
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}
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//Switched from arrayChange subscription to general subscription using 'refresh'.
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//Not sure performance is any better using 'select' and 'deselect'.
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if (allBindings.has('selectedOptions')) {
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var selectedOptions = allBindings.get('selectedOptions');
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if (ko.isObservable(selectedOptions)) {
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ko.computed({
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read: function() {
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selectedOptions();
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setTimeout(function() {
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$element.multiselect('refresh');
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}, 1);
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},
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disposeWhenNodeIsRemoved: element
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}).extend({ rateLimit: 100, notifyWhenChangesStop: true });
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}
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}
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var setEnabled = function (enable) {
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setTimeout(function () {
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if (enable)
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$element.multiselect('enable');
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else
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$element.multiselect('disable');
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});
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};
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if (allBindings.has('enable')) {
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var enable = allBindings.get('enable');
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if (ko.isObservable(enable)) {
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ko.computed({
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read: function () {
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setEnabled(enable());
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},
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disposeWhenNodeIsRemoved: element
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}).extend({ rateLimit: 100, notifyWhenChangesStop: true });
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} else {
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setEnabled(enable);
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}
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}
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if (allBindings.has('disable')) {
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var disable = allBindings.get('disable');
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if (ko.isObservable(disable)) {
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ko.computed({
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read: function () {
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setEnabled(!disable());
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},
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disposeWhenNodeIsRemoved: element
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}).extend({ rateLimit: 100, notifyWhenChangesStop: true });
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} else {
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setEnabled(!disable);
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}
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}
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ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
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$element.multiselect('destroy');
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});
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},
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update: function(element, valueAccessor, allBindings, viewModel, bindingContext) {
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var $element = $(element);
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var config = ko.toJS(valueAccessor());
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$element.multiselect('setOptions', config);
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$element.multiselect('rebuild');
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}
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};
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}
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function forEach(array, callback) {
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for (var index = 0; index < array.length; ++index) {
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callback(array[index], index);
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}
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}
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/**
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* Constructor to create a new multiselect using the given select.
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*
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* @param {jQuery} select
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* @param {Object} options
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* @returns {Multiselect}
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*/
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function Multiselect(select, options) {
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this.$select = $(select);
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this.options = this.mergeOptions($.extend({}, options, this.$select.data()));
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// Placeholder via data attributes
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if (this.$select.attr("data-placeholder")) {
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this.options.nonSelectedText = this.$select.data("placeholder");
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}
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// Initialization.
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// We have to clone to create a new reference.
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this.originalOptions = this.$select.clone()[0].options;
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this.query = '';
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this.searchTimeout = null;
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this.lastToggledInput = null;
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this.options.multiple = this.$select.attr('multiple') === "multiple";
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this.options.onChange = $.proxy(this.options.onChange, this);
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this.options.onSelectAll = $.proxy(this.options.onSelectAll, this);
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this.options.onDeselectAll = $.proxy(this.options.onDeselectAll, this);
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this.options.onDropdownShow = $.proxy(this.options.onDropdownShow, this);
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this.options.onDropdownHide = $.proxy(this.options.onDropdownHide, this);
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this.options.onDropdownShown = $.proxy(this.options.onDropdownShown, this);
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this.options.onDropdownHidden = $.proxy(this.options.onDropdownHidden, this);
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this.options.onInitialized = $.proxy(this.options.onInitialized, this);
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this.options.onFiltering = $.proxy(this.options.onFiltering, this);
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// Build select all if enabled.
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this.buildContainer();
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this.buildButton();
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this.buildDropdown();
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this.buildSelectAll();
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this.buildDropdownOptions();
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this.buildFilter();
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this.updateButtonText();
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this.updateSelectAll(true);
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if (this.options.enableClickableOptGroups && this.options.multiple) {
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this.updateOptGroups();
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}
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this.options.wasDisabled = this.$select.prop('disabled');
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if (this.options.disableIfEmpty && $('option', this.$select).length <= 0) {
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this.disable();
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}
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this.$select.wrap('<span class="multiselect-native-select" />').after(this.$container);
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this.options.onInitialized(this.$select, this.$container);
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}
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Multiselect.prototype = {
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defaults: {
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/**
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* Default text function will either print 'None selected' in case no
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* option is selected or a list of the selected options up to a length
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* of 3 selected options.
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*
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* @param {jQuery} options
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* @param {jQuery} select
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* @returns {String}
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*/
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buttonText: function(options, select) {
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if (this.disabledText.length > 0
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&& (select.prop('disabled') || (options.length == 0 && this.disableIfEmpty))) {
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return this.disabledText;
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}
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else if (options.length === 0) {
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return this.nonSelectedText;
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}
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else if (this.allSelectedText
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&& options.length === $('option', $(select)).length
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&& $('option', $(select)).length !== 1
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&& this.multiple) {
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if (this.selectAllNumber) {
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return this.allSelectedText + ' (' + options.length + ')';
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}
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else {
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return this.allSelectedText;
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}
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}
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else if (options.length > this.numberDisplayed) {
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return options.length + ' ' + this.nSelectedText;
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}
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else {
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var selected = '';
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var delimiter = this.delimiterText;
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options.each(function() {
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var label = ($(this).attr('label') !== undefined) ? $(this).attr('label') : $(this).text();
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selected += label + delimiter;
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});
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return selected.substr(0, selected.length - this.delimiterText.length);
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}
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},
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/**
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* Updates the title of the button similar to the buttonText function.
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*
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* @param {jQuery} options
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* @param {jQuery} select
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* @returns {@exp;selected@call;substr}
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*/
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buttonTitle: function(options, select) {
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if (options.length === 0) {
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return this.nonSelectedText;
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}
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else {
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var selected = '';
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var delimiter = this.delimiterText;
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options.each(function () {
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var label = ($(this).attr('label') !== undefined) ? $(this).attr('label') : $(this).text();
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selected += label + delimiter;
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});
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return selected.substr(0, selected.length - this.delimiterText.length);
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}
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},
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checkboxName: function(option) {
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return false; // no checkbox name
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},
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/**
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* Create a label.
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*
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* @param {jQuery} element
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* @returns {String}
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*/
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optionLabel: function(element){
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return $(element).attr('label') || $(element).text();
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},
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/**
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* Create a class.
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*
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* @param {jQuery} element
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* @returns {String}
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*/
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optionClass: function(element) {
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return $(element).attr('class') || '';
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},
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/**
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* Triggered on change of the multiselect.
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*
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* Not triggered when selecting/deselecting options manually.
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*
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* @param {jQuery} option
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* @param {Boolean} checked
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*/
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onChange : function(option, checked) {
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},
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/**
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* Triggered when the dropdown is shown.
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*
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* @param {jQuery} event
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*/
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onDropdownShow: function(event) {
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},
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/**
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* Triggered when the dropdown is hidden.
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*
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* @param {jQuery} event
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*/
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onDropdownHide: function(event) {
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},
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/**
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* Triggered after the dropdown is shown.
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*
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* @param {jQuery} event
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*/
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onDropdownShown: function(event) {
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},
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/**
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* Triggered after the dropdown is hidden.
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*
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* @param {jQuery} event
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*/
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onDropdownHidden: function(event) {
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},
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/**
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* Triggered on select all.
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*/
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onSelectAll: function() {
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},
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/**
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* Triggered on deselect all.
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*/
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onDeselectAll: function() {
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},
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/**
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* Triggered after initializing.
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*
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* @param {jQuery} $select
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* @param {jQuery} $container
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*/
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onInitialized: function($select, $container) {
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},
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/**
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* Triggered on filtering.
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*
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* @param {jQuery} $filter
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*/
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onFiltering: function($filter) {
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},
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enableHTML: false,
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buttonClass: 'btn btn-default',
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inheritClass: false,
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buttonWidth: 'auto',
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buttonContainer: '<div class="btn-group" />',
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dropRight: false,
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dropUp: false,
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selectedClass: 'active',
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// Maximum height of the dropdown menu.
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// If maximum height is exceeded a scrollbar will be displayed.
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maxHeight: false,
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includeSelectAllOption: false,
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includeSelectAllIfMoreThan: 0,
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selectAllText: ' 选取所有',
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selectAllValue: 'multiselect-all',
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selectAllName: false,
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selectAllNumber: true,
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selectAllJustVisible: true,
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enableFiltering: false,
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enableCaseInsensitiveFiltering: false,
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enableFullValueFiltering: false,
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enableClickableOptGroups: false,
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enableCollapsibleOptGroups: false,
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filterPlaceholder: 'Search',
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// possible options: 'text', 'value', 'both'
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filterBehavior: 'text',
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includeFilterClearBtn: true,
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preventInputChangeEvent: false,
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nonSelectedText: '请选择用户组',
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nSelectedText: 'selected',
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allSelectedText: 'All selected',
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numberDisplayed: 3,
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disableIfEmpty: false,
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disabledText: '',
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delimiterText: ', ',
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templates: {
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button: '<button type="button" class="multiselect dropdown-toggle" data-toggle="dropdown"><span class="multiselect-selected-text"></span> <b class="caret"></b></button>',
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ul: '<ul class="multiselect-container dropdown-menu"></ul>',
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filter: '<li class="multiselect-item multiselect-filter"><div class="input-group"><span class="input-group-addon"><i class="glyphicon glyphicon-search"></i></span><input class="form-control multiselect-search" type="text"></div></li>',
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filterClearBtn: '<span class="input-group-btn"><button class="btn btn-default multiselect-clear-filter" type="button"><i class="glyphicon glyphicon-remove-circle"></i></button></span>',
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li: '<li><a tabindex="0"><label></label></a></li>',
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divider: '<li class="multiselect-item divider"></li>',
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liGroup: '<li class="multiselect-item multiselect-group"><label></label></li>'
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}
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},
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constructor: Multiselect,
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/**
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* Builds the container of the multiselect.
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*/
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buildContainer: function() {
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this.$container = $(this.options.buttonContainer);
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this.$container.on('show.bs.dropdown', this.options.onDropdownShow);
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this.$container.on('hide.bs.dropdown', this.options.onDropdownHide);
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this.$container.on('shown.bs.dropdown', this.options.onDropdownShown);
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this.$container.on('hidden.bs.dropdown', this.options.onDropdownHidden);
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},
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/**
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* Builds the button of the multiselect.
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*/
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buildButton: function() {
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this.$button = $(this.options.templates.button).addClass(this.options.buttonClass);
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if (this.$select.attr('class') && this.options.inheritClass) {
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this.$button.addClass(this.$select.attr('class'));
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}
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// Adopt active state.
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if (this.$select.prop('disabled')) {
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this.disable();
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}
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else {
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this.enable();
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}
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// Manually add button width if set.
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if (this.options.buttonWidth && this.options.buttonWidth !== 'auto') {
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this.$button.css({
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'width' : '100%', //this.options.buttonWidth,
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'overflow' : 'hidden',
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'text-overflow' : 'ellipsis'
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});
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this.$container.css({
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'width': this.options.buttonWidth
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});
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}
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// Keep the tab index from the select.
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var tabindex = this.$select.attr('tabindex');
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if (tabindex) {
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this.$button.attr('tabindex', tabindex);
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}
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this.$container.prepend(this.$button);
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},
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/**
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* Builds the ul representing the dropdown menu.
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*/
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buildDropdown: function() {
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// Build ul.
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this.$ul = $(this.options.templates.ul);
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if (this.options.dropRight) {
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this.$ul.addClass('pull-right');
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}
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// Set max height of dropdown menu to activate auto scrollbar.
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if (this.options.maxHeight) {
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// TODO: Add a class for this option to move the css declarations.
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this.$ul.css({
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'max-height': this.options.maxHeight + 'px',
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'overflow-y': 'auto',
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'overflow-x': 'hidden'
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});
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}
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if (this.options.dropUp) {
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var height = Math.min(this.options.maxHeight, $('option[data-role!="divider"]', this.$select).length*26 + $('option[data-role="divider"]', this.$select).length*19 + (this.options.includeSelectAllOption ? 26 : 0) + (this.options.enableFiltering || this.options.enableCaseInsensitiveFiltering ? 44 : 0));
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var moveCalc = height + 34;
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this.$ul.css({
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'max-height': height + 'px',
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'overflow-y': 'auto',
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'overflow-x': 'hidden',
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'margin-top': "-" + moveCalc + 'px'
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});
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}
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this.$container.append(this.$ul);
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},
|
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/**
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* Build the dropdown options and binds all necessary events.
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*
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* Uses createDivider and createOptionValue to create the necessary options.
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*/
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buildDropdownOptions: function() {
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this.$select.children().each($.proxy(function(index, element) {
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var $element = $(element);
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// Support optgroups and options without a group simultaneously.
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var tag = $element.prop('tagName')
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.toLowerCase();
|
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if ($element.prop('value') === this.options.selectAllValue) {
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return;
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}
|
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if (tag === 'optgroup') {
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this.createOptgroup(element);
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}
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else if (tag === 'option') {
|
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if ($element.data('role') === 'divider') {
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this.createDivider();
|
}
|
else {
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this.createOptionValue(element);
|
}
|
|
}
|
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// Other illegal tags will be ignored.
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}, this));
|
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// Bind the change event on the dropdown elements.
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$('li:not(.multiselect-group) input', this.$ul).on('change', $.proxy(function(event) {
|
var $target = $(event.target);
|
|
var checked = $target.prop('checked') || false;
|
var isSelectAllOption = $target.val() === this.options.selectAllValue;
|
|
// Apply or unapply the configured selected class.
|
if (this.options.selectedClass) {
|
if (checked) {
|
$target.closest('li')
|
.addClass(this.options.selectedClass);
|
}
|
else {
|
$target.closest('li')
|
.removeClass(this.options.selectedClass);
|
}
|
}
|
|
// Get the corresponding option.
|
var value = $target.val();
|
var $option = this.getOptionByValue(value);
|
|
var $optionsNotThis = $('option', this.$select).not($option);
|
var $checkboxesNotThis = $('input', this.$container).not($target);
|
|
if (isSelectAllOption) {
|
|
if (checked) {
|
this.selectAll(this.options.selectAllJustVisible, true);
|
}
|
else {
|
this.deselectAll(this.options.selectAllJustVisible, true);
|
}
|
}
|
else {
|
if (checked) {
|
$option.prop('selected', true);
|
|
if (this.options.multiple) {
|
// Simply select additional option.
|
$option.prop('selected', true);
|
}
|
else {
|
// Unselect all other options and corresponding checkboxes.
|
if (this.options.selectedClass) {
|
$($checkboxesNotThis).closest('li').removeClass(this.options.selectedClass);
|
}
|
|
$($checkboxesNotThis).prop('checked', false);
|
$optionsNotThis.prop('selected', false);
|
|
// It's a single selection, so close.
|
this.$button.click();
|
}
|
|
if (this.options.selectedClass === "active") {
|
$optionsNotThis.closest("a").css("outline", "");
|
}
|
}
|
else {
|
// Unselect option.
|
$option.prop('selected', false);
|
}
|
|
// To prevent select all from firing onChange: #575
|
this.options.onChange($option, checked);
|
|
// Do not update select all or optgroups on select all change!
|
this.updateSelectAll();
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
}
|
|
this.$select.change();
|
this.updateButtonText();
|
|
if(this.options.preventInputChangeEvent) {
|
return false;
|
}
|
}, this));
|
|
$('li a', this.$ul).on('mousedown', function(e) {
|
if (e.shiftKey) {
|
// Prevent selecting text by Shift+click
|
return false;
|
}
|
});
|
|
$('li a', this.$ul).on('touchstart click', $.proxy(function(event) {
|
event.stopPropagation();
|
|
var $target = $(event.target);
|
|
if (event.shiftKey && this.options.multiple) {
|
if($target.is("label")){ // Handles checkbox selection manually (see https://github.com/davidstutz/bootstrap-multiselect/issues/431)
|
event.preventDefault();
|
$target = $target.find("input");
|
$target.prop("checked", !$target.prop("checked"));
|
}
|
var checked = $target.prop('checked') || false;
|
|
if (this.lastToggledInput !== null && this.lastToggledInput !== $target) { // Make sure we actually have a range
|
var from = $target.closest("li").index();
|
var to = this.lastToggledInput.closest("li").index();
|
|
if (from > to) { // Swap the indices
|
var tmp = to;
|
to = from;
|
from = tmp;
|
}
|
|
// Make sure we grab all elements since slice excludes the last index
|
++to;
|
|
// Change the checkboxes and underlying options
|
var range = this.$ul.find("li").slice(from, to).find("input");
|
|
range.prop('checked', checked);
|
|
if (this.options.selectedClass) {
|
range.closest('li')
|
.toggleClass(this.options.selectedClass, checked);
|
}
|
|
for (var i = 0, j = range.length; i < j; i++) {
|
var $checkbox = $(range[i]);
|
|
var $option = this.getOptionByValue($checkbox.val());
|
|
$option.prop('selected', checked);
|
}
|
}
|
|
// Trigger the select "change" event
|
$target.trigger("change");
|
}
|
|
// Remembers last clicked option
|
if($target.is("input") && !$target.closest("li").is(".multiselect-item")){
|
this.lastToggledInput = $target;
|
}
|
|
$target.blur();
|
}, this));
|
|
// Keyboard support.
|
this.$container.off('keydown.multiselect').on('keydown.multiselect', $.proxy(function(event) {
|
if ($('input[type="text"]', this.$container).is(':focus')) {
|
return;
|
}
|
|
if (event.keyCode === 9 && this.$container.hasClass('open')) {
|
this.$button.click();
|
}
|
else {
|
var $items = $(this.$container).find("li:not(.divider):not(.disabled) a").filter(":visible");
|
|
if (!$items.length) {
|
return;
|
}
|
|
var index = $items.index($items.filter(':focus'));
|
|
// Navigation up.
|
if (event.keyCode === 38 && index > 0) {
|
index--;
|
}
|
// Navigate down.
|
else if (event.keyCode === 40 && index < $items.length - 1) {
|
index++;
|
}
|
else if (!~index) {
|
index = 0;
|
}
|
|
var $current = $items.eq(index);
|
$current.focus();
|
|
if (event.keyCode === 32 || event.keyCode === 13) {
|
var $checkbox = $current.find('input');
|
|
$checkbox.prop("checked", !$checkbox.prop("checked"));
|
$checkbox.change();
|
}
|
|
event.stopPropagation();
|
event.preventDefault();
|
}
|
}, this));
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
$("li.multiselect-group input", this.$ul).on("change", $.proxy(function(event) {
|
event.stopPropagation();
|
|
var $target = $(event.target);
|
var checked = $target.prop('checked') || false;
|
|
var $li = $(event.target).closest('li');
|
var $group = $li.nextUntil("li.multiselect-group")
|
.not('.multiselect-filter-hidden')
|
.not('.disabled');
|
|
var $inputs = $group.find("input");
|
|
var values = [];
|
var $options = [];
|
|
if (this.options.selectedClass) {
|
if (checked) {
|
$li.addClass(this.options.selectedClass);
|
}
|
else {
|
$li.removeClass(this.options.selectedClass);
|
}
|
}
|
|
$.each($inputs, $.proxy(function(index, input) {
|
var value = $(input).val();
|
var $option = this.getOptionByValue(value);
|
|
if (checked) {
|
$(input).prop('checked', true);
|
$(input).closest('li')
|
.addClass(this.options.selectedClass);
|
|
$option.prop('selected', true);
|
}
|
else {
|
$(input).prop('checked', false);
|
$(input).closest('li')
|
.removeClass(this.options.selectedClass);
|
|
$option.prop('selected', false);
|
}
|
|
$options.push(this.getOptionByValue(value));
|
}, this))
|
|
// Cannot use select or deselect here because it would call updateOptGroups again.
|
|
this.options.onChange($options, checked);
|
|
this.updateButtonText();
|
this.updateSelectAll();
|
}, this));
|
}
|
|
if (this.options.enableCollapsibleOptGroups && this.options.multiple) {
|
$("li.multiselect-group .caret-container", this.$ul).on("click", $.proxy(function(event) {
|
var $li = $(event.target).closest('li');
|
var $inputs = $li.nextUntil("li.multiselect-group")
|
.not('.multiselect-filter-hidden');
|
|
var visible = true;
|
$inputs.each(function() {
|
visible = visible && $(this).is(':visible');
|
});
|
|
if (visible) {
|
$inputs.hide()
|
.addClass('multiselect-collapsible-hidden');
|
}
|
else {
|
$inputs.show()
|
.removeClass('multiselect-collapsible-hidden');
|
}
|
}, this));
|
|
$("li.multiselect-all", this.$ul).css('background', '#f3f3f3').css('border-bottom', '1px solid #eaeaea');
|
$("li.multiselect-all > a > label.checkbox", this.$ul).css('padding', '3px 20px 3px 35px');
|
$("li.multiselect-group > a > input", this.$ul).css('margin', '4px 0px 5px -20px');
|
}
|
},
|
|
/**
|
* Create an option using the given select option.
|
*
|
* @param {jQuery} element
|
*/
|
createOptionValue: function(element) {
|
var $element = $(element);
|
if ($element.is(':selected')) {
|
$element.prop('selected', true);
|
}
|
|
// Support the label attribute on options.
|
var label = this.options.optionLabel(element);
|
var classes = this.options.optionClass(element);
|
var value = $element.val();
|
var inputType = this.options.multiple ? "checkbox" : "radio";
|
|
var $li = $(this.options.templates.li);
|
var $label = $('label', $li);
|
$label.addClass(inputType);
|
$li.addClass(classes);
|
|
if (this.options.enableHTML) {
|
$label.html(" " + label);
|
}
|
else {
|
$label.text(" " + label);
|
}
|
|
var $checkbox = $('<input/>').attr('type', inputType);
|
|
var name = this.options.checkboxName($element);
|
if (name) {
|
$checkbox.attr('name', name);
|
}
|
|
$label.prepend($checkbox);
|
|
var selected = $element.prop('selected') || false;
|
$checkbox.val(value);
|
|
if (value === this.options.selectAllValue) {
|
$li.addClass("multiselect-item multiselect-all");
|
$checkbox.parent().parent()
|
.addClass('multiselect-all');
|
}
|
|
$label.attr('title', $element.attr('title'));
|
|
this.$ul.append($li);
|
|
if ($element.is(':disabled')) {
|
$checkbox.attr('disabled', 'disabled')
|
.prop('disabled', true)
|
.closest('a')
|
.attr("tabindex", "-1")
|
.closest('li')
|
.addClass('disabled');
|
}
|
|
$checkbox.prop('checked', selected);
|
|
if (selected && this.options.selectedClass) {
|
$checkbox.closest('li')
|
.addClass(this.options.selectedClass);
|
}
|
},
|
|
/**
|
* Creates a divider using the given select option.
|
*
|
* @param {jQuery} element
|
*/
|
createDivider: function(element) {
|
var $divider = $(this.options.templates.divider);
|
this.$ul.append($divider);
|
},
|
|
/**
|
* Creates an optgroup.
|
*
|
* @param {jQuery} group
|
*/
|
createOptgroup: function(group) {
|
var label = $(group).attr("label");
|
var value = $(group).attr("value");
|
var $li = $('<li class="multiselect-item multiselect-group"><a href="javascript:void(0);"><label><b></b></label></a></li>');
|
|
var classes = this.options.optionClass(group);
|
$li.addClass(classes);
|
|
if (this.options.enableHTML) {
|
$('label b', $li).html(" " + label);
|
}
|
else {
|
$('label b', $li).text(" " + label);
|
}
|
|
if (this.options.enableCollapsibleOptGroups && this.options.multiple) {
|
$('a', $li).append('<span class="caret-container"><b class="caret"></b></span>');
|
}
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
$('a label', $li).prepend('<input type="checkbox" value="' + value + '"/>');
|
}
|
|
if ($(group).is(':disabled')) {
|
$li.addClass('disabled');
|
}
|
|
this.$ul.append($li);
|
|
$("option", group).each($.proxy(function($, group) {
|
this.createOptionValue(group);
|
}, this))
|
},
|
|
/**
|
* Build the select all.
|
*
|
* Checks if a select all has already been created.
|
*/
|
buildSelectAll: function() {
|
if (typeof this.options.selectAllValue === 'number') {
|
this.options.selectAllValue = this.options.selectAllValue.toString();
|
}
|
|
var alreadyHasSelectAll = this.hasSelectAll();
|
|
if (!alreadyHasSelectAll && this.options.includeSelectAllOption && this.options.multiple
|
&& $('option', this.$select).length > this.options.includeSelectAllIfMoreThan) {
|
|
// Check whether to add a divider after the select all.
|
if (this.options.includeSelectAllDivider) {
|
this.$ul.prepend($(this.options.templates.divider));
|
}
|
|
var $li = $(this.options.templates.li);
|
$('label', $li).addClass("checkbox");
|
|
if (this.options.enableHTML) {
|
$('label', $li).html(" " + this.options.selectAllText);
|
}
|
else {
|
$('label', $li).text(" " + this.options.selectAllText);
|
}
|
|
if (this.options.selectAllName) {
|
$('label', $li).prepend('<input type="checkbox" name="' + this.options.selectAllName + '" />');
|
}
|
else {
|
$('label', $li).prepend('<input type="checkbox" />');
|
}
|
|
var $checkbox = $('input', $li);
|
$checkbox.val(this.options.selectAllValue);
|
|
$li.addClass("multiselect-item multiselect-all");
|
$checkbox.parent().parent()
|
.addClass('multiselect-all');
|
|
this.$ul.prepend($li);
|
|
$checkbox.prop('checked', false);
|
}
|
},
|
|
/**
|
* Builds the filter.
|
*/
|
buildFilter: function() {
|
|
// Build filter if filtering OR case insensitive filtering is enabled and the number of options exceeds (or equals) enableFilterLength.
|
if (this.options.enableFiltering || this.options.enableCaseInsensitiveFiltering) {
|
var enableFilterLength = Math.max(this.options.enableFiltering, this.options.enableCaseInsensitiveFiltering);
|
|
if (this.$select.find('option').length >= enableFilterLength) {
|
|
this.$filter = $(this.options.templates.filter);
|
$('input', this.$filter).attr('placeholder', this.options.filterPlaceholder);
|
|
// Adds optional filter clear button
|
if(this.options.includeFilterClearBtn) {
|
var clearBtn = $(this.options.templates.filterClearBtn);
|
clearBtn.on('click', $.proxy(function(event){
|
clearTimeout(this.searchTimeout);
|
|
this.$filter.find('.multiselect-search').val('');
|
$('li', this.$ul).show().removeClass('multiselect-filter-hidden');
|
|
this.updateSelectAll();
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
|
}, this));
|
this.$filter.find('.input-group').append(clearBtn);
|
}
|
|
this.$ul.prepend(this.$filter);
|
|
this.$filter.val(this.query).on('click', function(event) {
|
event.stopPropagation();
|
}).on('input keydown', $.proxy(function(event) {
|
// Cancel enter key default behaviour
|
if (event.which === 13) {
|
event.preventDefault();
|
}
|
|
// This is useful to catch "keydown" events after the browser has updated the control.
|
clearTimeout(this.searchTimeout);
|
|
this.searchTimeout = this.asyncFunction($.proxy(function() {
|
|
if (this.query !== event.target.value) {
|
this.query = event.target.value;
|
|
var currentGroup, currentGroupVisible;
|
$.each($('li', this.$ul), $.proxy(function(index, element) {
|
var value = $('input', element).length > 0 ? $('input', element).val() : "";
|
var text = $('label', element).text();
|
|
var filterCandidate = '';
|
if ((this.options.filterBehavior === 'text')) {
|
filterCandidate = text;
|
}
|
else if ((this.options.filterBehavior === 'value')) {
|
filterCandidate = value;
|
}
|
else if (this.options.filterBehavior === 'both') {
|
filterCandidate = text + '\n' + value;
|
}
|
|
if (value !== this.options.selectAllValue && text) {
|
|
// By default lets assume that element is not
|
// interesting for this search.
|
var showElement = false;
|
|
if (this.options.enableCaseInsensitiveFiltering) {
|
filterCandidate = filterCandidate.toLowerCase();
|
this.query = this.query.toLowerCase();
|
}
|
|
if (this.options.enableFullValueFiltering && this.options.filterBehavior !== 'both') {
|
var valueToMatch = filterCandidate.trim().substring(0, this.query.length);
|
if (this.query.indexOf(valueToMatch) > -1) {
|
showElement = true;
|
}
|
}
|
else if (filterCandidate.indexOf(this.query) > -1) {
|
showElement = true;
|
}
|
|
// Toggle current element (group or group item) according to showElement boolean.
|
$(element).toggle(showElement)
|
.toggleClass('multiselect-filter-hidden', !showElement);
|
|
// Differentiate groups and group items.
|
if ($(element).hasClass('multiselect-group')) {
|
// Remember group status.
|
currentGroup = element;
|
currentGroupVisible = showElement;
|
}
|
else {
|
// Show group name when at least one of its items is visible.
|
if (showElement) {
|
$(currentGroup).show()
|
.removeClass('multiselect-filter-hidden');
|
}
|
|
// Show all group items when group name satisfies filter.
|
if (!showElement && currentGroupVisible) {
|
$(element).show()
|
.removeClass('multiselect-filter-hidden');
|
}
|
}
|
}
|
}, this));
|
}
|
|
this.updateSelectAll();
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
|
this.options.onFiltering(event.target);
|
|
}, this), 300, this);
|
}, this));
|
}
|
}
|
},
|
|
/**
|
* Unbinds the whole plugin.
|
*/
|
destroy: function() {
|
this.$container.remove();
|
this.$select.show();
|
|
// reset original state
|
this.$select.prop('disabled', this.options.wasDisabled);
|
|
this.$select.data('multiselect', null);
|
},
|
|
/**
|
* Refreshs the multiselect based on the selected options of the select.
|
*/
|
refresh: function () {
|
var inputs = $.map($('li input', this.$ul), $);
|
|
$('option', this.$select).each($.proxy(function (index, element) {
|
var $elem = $(element);
|
var value = $elem.val();
|
var $input;
|
for (var i = inputs.length; 0 < i--; /**/) {
|
if (value !== ($input = inputs[i]).val())
|
continue; // wrong li
|
|
if ($elem.is(':selected')) {
|
$input.prop('checked', true);
|
|
if (this.options.selectedClass) {
|
$input.closest('li')
|
.addClass(this.options.selectedClass);
|
}
|
}
|
else {
|
$input.prop('checked', false);
|
|
if (this.options.selectedClass) {
|
$input.closest('li')
|
.removeClass(this.options.selectedClass);
|
}
|
}
|
|
if ($elem.is(":disabled")) {
|
$input.attr('disabled', 'disabled')
|
.prop('disabled', true)
|
.closest('li')
|
.addClass('disabled');
|
}
|
else {
|
$input.prop('disabled', false)
|
.closest('li')
|
.removeClass('disabled');
|
}
|
break; // assumes unique values
|
}
|
}, this));
|
|
this.updateButtonText();
|
this.updateSelectAll();
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
},
|
|
/**
|
* Select all options of the given values.
|
*
|
* If triggerOnChange is set to true, the on change event is triggered if
|
* and only if one value is passed.
|
*
|
* @param {Array} selectValues
|
* @param {Boolean} triggerOnChange
|
*/
|
select: function(selectValues, triggerOnChange) {
|
if(!$.isArray(selectValues)) {
|
selectValues = [selectValues];
|
}
|
|
for (var i = 0; i < selectValues.length; i++) {
|
var value = selectValues[i];
|
|
if (value === null || value === undefined) {
|
continue;
|
}
|
|
var $option = this.getOptionByValue(value);
|
var $checkbox = this.getInputByValue(value);
|
|
if($option === undefined || $checkbox === undefined) {
|
continue;
|
}
|
|
if (!this.options.multiple) {
|
this.deselectAll(false);
|
}
|
|
if (this.options.selectedClass) {
|
$checkbox.closest('li')
|
.addClass(this.options.selectedClass);
|
}
|
|
$checkbox.prop('checked', true);
|
$option.prop('selected', true);
|
|
if (triggerOnChange) {
|
this.options.onChange($option, true);
|
}
|
}
|
|
this.updateButtonText();
|
this.updateSelectAll();
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
},
|
|
/**
|
* Clears all selected items.
|
*/
|
clearSelection: function () {
|
this.deselectAll(false);
|
this.updateButtonText();
|
this.updateSelectAll();
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
},
|
|
/**
|
* Deselects all options of the given values.
|
*
|
* If triggerOnChange is set to true, the on change event is triggered, if
|
* and only if one value is passed.
|
*
|
* @param {Array} deselectValues
|
* @param {Boolean} triggerOnChange
|
*/
|
deselect: function(deselectValues, triggerOnChange) {
|
if(!$.isArray(deselectValues)) {
|
deselectValues = [deselectValues];
|
}
|
|
for (var i = 0; i < deselectValues.length; i++) {
|
var value = deselectValues[i];
|
|
if (value === null || value === undefined) {
|
continue;
|
}
|
|
var $option = this.getOptionByValue(value);
|
var $checkbox = this.getInputByValue(value);
|
|
if($option === undefined || $checkbox === undefined) {
|
continue;
|
}
|
|
if (this.options.selectedClass) {
|
$checkbox.closest('li')
|
.removeClass(this.options.selectedClass);
|
}
|
|
$checkbox.prop('checked', false);
|
$option.prop('selected', false);
|
|
if (triggerOnChange) {
|
this.options.onChange($option, false);
|
}
|
}
|
|
this.updateButtonText();
|
this.updateSelectAll();
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
},
|
|
/**
|
* Selects all enabled & visible options.
|
*
|
* If justVisible is true or not specified, only visible options are selected.
|
*
|
* @param {Boolean} justVisible
|
* @param {Boolean} triggerOnSelectAll
|
*/
|
selectAll: function (justVisible, triggerOnSelectAll) {
|
|
var justVisible = typeof justVisible === 'undefined' ? true : justVisible;
|
var allLis = $("li:not(.divider):not(.disabled):not(.multiselect-group)", this.$ul);
|
var visibleLis = $("li:not(.divider):not(.disabled):not(.multiselect-group):not(.multiselect-filter-hidden):not(.multiselect-collapisble-hidden)", this.$ul).filter(':visible');
|
|
if(justVisible) {
|
$('input:enabled' , visibleLis).prop('checked', true);
|
visibleLis.addClass(this.options.selectedClass);
|
|
$('input:enabled' , visibleLis).each($.proxy(function(index, element) {
|
var value = $(element).val();
|
var option = this.getOptionByValue(value);
|
$(option).prop('selected', true);
|
}, this));
|
}
|
else {
|
$('input:enabled' , allLis).prop('checked', true);
|
allLis.addClass(this.options.selectedClass);
|
|
$('input:enabled' , allLis).each($.proxy(function(index, element) {
|
var value = $(element).val();
|
var option = this.getOptionByValue(value);
|
$(option).prop('selected', true);
|
}, this));
|
}
|
|
$('li input[value="' + this.options.selectAllValue + '"]', this.$ul).prop('checked', true);
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
|
if (triggerOnSelectAll) {
|
this.options.onSelectAll();
|
}
|
},
|
|
/**
|
* Deselects all options.
|
*
|
* If justVisible is true or not specified, only visible options are deselected.
|
*
|
* @param {Boolean} justVisible
|
*/
|
deselectAll: function (justVisible, triggerOnDeselectAll) {
|
|
var justVisible = typeof justVisible === 'undefined' ? true : justVisible;
|
var allLis = $("li:not(.divider):not(.disabled):not(.multiselect-group)", this.$ul);
|
var visibleLis = $("li:not(.divider):not(.disabled):not(.multiselect-group):not(.multiselect-filter-hidden):not(.multiselect-collapisble-hidden)", this.$ul).filter(':visible');
|
|
if(justVisible) {
|
$('input[type="checkbox"]:enabled' , visibleLis).prop('checked', false);
|
visibleLis.removeClass(this.options.selectedClass);
|
|
$('input[type="checkbox"]:enabled' , visibleLis).each($.proxy(function(index, element) {
|
var value = $(element).val();
|
var option = this.getOptionByValue(value);
|
$(option).prop('selected', false);
|
}, this));
|
}
|
else {
|
$('input[type="checkbox"]:enabled' , allLis).prop('checked', false);
|
allLis.removeClass(this.options.selectedClass);
|
|
$('input[type="checkbox"]:enabled' , allLis).each($.proxy(function(index, element) {
|
var value = $(element).val();
|
var option = this.getOptionByValue(value);
|
$(option).prop('selected', false);
|
}, this));
|
}
|
|
$('li input[value="' + this.options.selectAllValue + '"]', this.$ul).prop('checked', false);
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
|
if (triggerOnDeselectAll) {
|
this.options.onDeselectAll();
|
}
|
},
|
|
/**
|
* Rebuild the plugin.
|
*
|
* Rebuilds the dropdown, the filter and the select all option.
|
*/
|
rebuild: function() {
|
this.$ul.html('');
|
|
// Important to distinguish between radios and checkboxes.
|
this.options.multiple = this.$select.attr('multiple') === "multiple";
|
|
this.buildSelectAll();
|
this.buildDropdownOptions();
|
this.buildFilter();
|
|
this.updateButtonText();
|
this.updateSelectAll(true);
|
|
if (this.options.enableClickableOptGroups && this.options.multiple) {
|
this.updateOptGroups();
|
}
|
|
if (this.options.disableIfEmpty && $('option', this.$select).length <= 0) {
|
this.disable();
|
}
|
else {
|
this.enable();
|
}
|
|
if (this.options.dropRight) {
|
this.$ul.addClass('pull-right');
|
}
|
},
|
|
/**
|
* The provided data will be used to build the dropdown.
|
*/
|
dataprovider: function(dataprovider) {
|
|
var groupCounter = 0;
|
var $select = this.$select.empty();
|
|
$.each(dataprovider, function (index, option) {
|
var $tag;
|
|
if ($.isArray(option.children)) { // create optiongroup tag
|
groupCounter++;
|
|
$tag = $('<optgroup/>').attr({
|
label: option.label || 'Group ' + groupCounter,
|
disabled: !!option.disabled
|
});
|
|
forEach(option.children, function(subOption) { // add children option tags
|
var attributes = {
|
value: subOption.value,
|
label: subOption.label || subOption.value,
|
title: subOption.title,
|
selected: !!subOption.selected,
|
disabled: !!subOption.disabled
|
};
|
|
//Loop through attributes object and add key-value for each attribute
|
for (var key in subOption.attributes) {
|
attributes['data-' + key] = subOption.attributes[key];
|
}
|
//Append original attributes + new data attributes to option
|
$tag.append($('<option/>').attr(attributes));
|
});
|
}
|
else {
|
|
var attributes = {
|
'value': option.value,
|
'label': option.label || option.value,
|
'title': option.title,
|
'class': option.class,
|
'selected': !!option.selected,
|
'disabled': !!option.disabled
|
};
|
//Loop through attributes object and add key-value for each attribute
|
for (var key in option.attributes) {
|
attributes['data-' + key] = option.attributes[key];
|
}
|
//Append original attributes + new data attributes to option
|
$tag = $('<option/>').attr(attributes);
|
|
$tag.text(option.label || option.value);
|
}
|
|
$select.append($tag);
|
});
|
|
this.rebuild();
|
},
|
|
/**
|
* Enable the multiselect.
|
*/
|
enable: function() {
|
this.$select.prop('disabled', false);
|
this.$button.prop('disabled', false)
|
.removeClass('disabled');
|
},
|
|
/**
|
* Disable the multiselect.
|
*/
|
disable: function() {
|
this.$select.prop('disabled', true);
|
this.$button.prop('disabled', true)
|
.addClass('disabled');
|
},
|
|
/**
|
* Set the options.
|
*
|
* @param {Array} options
|
*/
|
setOptions: function(options) {
|
this.options = this.mergeOptions(options);
|
},
|
|
/**
|
* Merges the given options with the default options.
|
*
|
* @param {Array} options
|
* @returns {Array}
|
*/
|
mergeOptions: function(options) {
|
return $.extend(true, {}, this.defaults, this.options, options);
|
},
|
|
/**
|
* Checks whether a select all checkbox is present.
|
*
|
* @returns {Boolean}
|
*/
|
hasSelectAll: function() {
|
return $('li.multiselect-all', this.$ul).length > 0;
|
},
|
|
/**
|
* Update opt groups.
|
*/
|
updateOptGroups: function() {
|
var $groups = $('li.multiselect-group', this.$ul)
|
var selectedClass = this.options.selectedClass;
|
|
$groups.each(function() {
|
var $options = $(this).nextUntil('li.multiselect-group')
|
.not('.multiselect-filter-hidden')
|
.not('.disabled');
|
|
var checked = true;
|
$options.each(function() {
|
var $input = $('input', this);
|
|
if (!$input.prop('checked')) {
|
checked = false;
|
}
|
});
|
|
if (selectedClass) {
|
if (checked) {
|
$(this).addClass(selectedClass);
|
}
|
else {
|
$(this).removeClass(selectedClass);
|
}
|
}
|
|
$('input', this).prop('checked', checked);
|
});
|
},
|
|
/**
|
* Updates the select all checkbox based on the currently displayed and selected checkboxes.
|
*/
|
updateSelectAll: function(notTriggerOnSelectAll) {
|
if (this.hasSelectAll()) {
|
var allBoxes = $("li:not(.multiselect-item):not(.multiselect-filter-hidden):not(.multiselect-group):not(.disabled) input:enabled", this.$ul);
|
var allBoxesLength = allBoxes.length;
|
var checkedBoxesLength = allBoxes.filter(":checked").length;
|
var selectAllLi = $("li.multiselect-all", this.$ul);
|
var selectAllInput = selectAllLi.find("input");
|
|
if (checkedBoxesLength > 0 && checkedBoxesLength === allBoxesLength) {
|
selectAllInput.prop("checked", true);
|
selectAllLi.addClass(this.options.selectedClass);
|
}
|
else {
|
selectAllInput.prop("checked", false);
|
selectAllLi.removeClass(this.options.selectedClass);
|
}
|
}
|
},
|
|
/**
|
* Update the button text and its title based on the currently selected options.
|
*/
|
updateButtonText: function() {
|
var options = this.getSelected();
|
|
// First update the displayed button text.
|
if (this.options.enableHTML) {
|
$('.multiselect .multiselect-selected-text', this.$container).html(this.options.buttonText(options, this.$select));
|
}
|
else {
|
$('.multiselect .multiselect-selected-text', this.$container).text(this.options.buttonText(options, this.$select));
|
}
|
|
// Now update the title attribute of the button.
|
$('.multiselect', this.$container).attr('title', this.options.buttonTitle(options, this.$select));
|
},
|
|
/**
|
* Get all selected options.
|
*
|
* @returns {jQUery}
|
*/
|
getSelected: function() {
|
return $('option', this.$select).filter(":selected");
|
},
|
|
/**
|
* Gets a select option by its value.
|
*
|
* @param {String} value
|
* @returns {jQuery}
|
*/
|
getOptionByValue: function (value) {
|
|
var options = $('option', this.$select);
|
var valueToCompare = value.toString();
|
|
for (var i = 0; i < options.length; i = i + 1) {
|
var option = options[i];
|
if (option.value === valueToCompare) {
|
return $(option);
|
}
|
}
|
},
|
|
/**
|
* Get the input (radio/checkbox) by its value.
|
*
|
* @param {String} value
|
* @returns {jQuery}
|
*/
|
getInputByValue: function (value) {
|
|
var checkboxes = $('li input:not(.multiselect-search)', this.$ul);
|
var valueToCompare = value.toString();
|
|
for (var i = 0; i < checkboxes.length; i = i + 1) {
|
var checkbox = checkboxes[i];
|
if (checkbox.value === valueToCompare) {
|
return $(checkbox);
|
}
|
}
|
},
|
|
/**
|
* Used for knockout integration.
|
*/
|
updateOriginalOptions: function() {
|
this.originalOptions = this.$select.clone()[0].options;
|
},
|
|
asyncFunction: function(callback, timeout, self) {
|
var args = Array.prototype.slice.call(arguments, 3);
|
return setTimeout(function() {
|
callback.apply(self || window, args);
|
}, timeout);
|
},
|
|
setAllSelectedText: function(allSelectedText) {
|
this.options.allSelectedText = allSelectedText;
|
this.updateButtonText();
|
}
|
};
|
|
$.fn.multiselect = function(option, parameter, extraOptions) {
|
return this.each(function() {
|
var data = $(this).data('multiselect');
|
var options = typeof option === 'object' && option;
|
|
// Initialize the multiselect.
|
if (!data) {
|
data = new Multiselect(this, options);
|
$(this).data('multiselect', data);
|
}
|
|
// Call multiselect method.
|
if (typeof option === 'string') {
|
data[option](parameter, extraOptions);
|
|
if (option === 'destroy') {
|
$(this).data('multiselect', false);
|
}
|
}
|
});
|
};
|
|
$.fn.multiselect.Constructor = Multiselect;
|
|
$(function() {
|
$("select[data-role=multiselect]").multiselect();
|
});
|
|
}(window.jQuery);
|
