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- /**
- * Bootstrap Multiselect (https://github.com/davidstutz/bootstrap-multiselect)
- *
- * Apache License, Version 2.0:
- * Copyright (c) 2012 - 2015 David Stutz
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a
- * copy of the License at http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- *
- * BSD 3-Clause License:
- * Copyright (c) 2012 - 2015 David Stutz
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * - Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * - Neither the name of David Stutz nor the names of its contributors may be
- * used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- !function ($) {
- "use strict";// jshint ;_;
- if (typeof ko !== 'undefined' && ko.bindingHandlers && !ko.bindingHandlers.multiselect) {
- ko.bindingHandlers.multiselect = {
- after: ['options', 'value', 'selectedOptions'],
- init: function(element, valueAccessor, allBindings, viewModel, bindingContext) {
- var $element = $(element);
- var config = ko.toJS(valueAccessor());
- $element.multiselect(config);
- if (allBindings.has('options')) {
- var options = allBindings.get('options');
- if (ko.isObservable(options)) {
- ko.computed({
- read: function() {
- options();
- setTimeout(function() {
- var ms = $element.data('multiselect');
- if (ms)
- ms.updateOriginalOptions();//Not sure how beneficial this is.
- $element.multiselect('rebuild');
- }, 1);
- },
- disposeWhenNodeIsRemoved: element
- });
- }
- }
- //value and selectedOptions are two-way, so these will be triggered even by our own actions.
- //It needs some way to tell if they are triggered because of us or because of outside change.
- //It doesn't loop but it's a waste of processing.
- if (allBindings.has('value')) {
- var value = allBindings.get('value');
- if (ko.isObservable(value)) {
- ko.computed({
- read: function() {
- value();
- setTimeout(function() {
- $element.multiselect('refresh');
- }, 1);
- },
- disposeWhenNodeIsRemoved: element
- }).extend({ rateLimit: 100, notifyWhenChangesStop: true });
- }
- }
- //Switched from arrayChange subscription to general subscription using 'refresh'.
- //Not sure performance is any better using 'select' and 'deselect'.
- if (allBindings.has('selectedOptions')) {
- var selectedOptions = allBindings.get('selectedOptions');
- if (ko.isObservable(selectedOptions)) {
- ko.computed({
- read: function() {
- selectedOptions();
- setTimeout(function() {
- $element.multiselect('refresh');
- }, 1);
- },
- disposeWhenNodeIsRemoved: element
- }).extend({ rateLimit: 100, notifyWhenChangesStop: true });
- }
- }
- ko.utils.domNodeDisposal.addDisposeCallback(element, function() {
- $element.multiselect('destroy');
- });
- },
- update: function(element, valueAccessor, allBindings, viewModel, bindingContext) {
- var $element = $(element);
- var config = ko.toJS(valueAccessor());
- $element.multiselect('setOptions', config);
- $element.multiselect('rebuild');
- }
- };
- }
- function forEach(array, callback) {
- for (var index = 0; index < array.length; ++index) {
- callback(array[index], index);
- }
- }
- /**
- * Constructor to create a new multiselect using the given select.
- *
- * @param {jQuery} select
- * @param {Object} options
- * @returns {Multiselect}
- */
- function Multiselect(select, options) {
- this.$select = $(select);
- this.options = this.mergeOptions($.extend({}, options, this.$select.data()));
- // Initialization.
- // We have to clone to create a new reference.
- this.originalOptions = this.$select.clone()[0].options;
- this.query = '';
- this.searchTimeout = null;
- this.lastToggledInput = null
- this.options.multiple = this.$select.attr('multiple') === "multiple";
- this.options.onChange = $.proxy(this.options.onChange, this);
- this.options.onDropdownShow = $.proxy(this.options.onDropdownShow, this);
- this.options.onDropdownHide = $.proxy(this.options.onDropdownHide, this);
- this.options.onDropdownShown = $.proxy(this.options.onDropdownShown, this);
- this.options.onDropdownHidden = $.proxy(this.options.onDropdownHidden, this);
- // Build select all if enabled.
- this.buildContainer();
- this.buildButton();
- this.buildDropdown();
- this.buildSelectAll();
- this.buildDropdownOptions();
- this.buildFilter();
- this.updateButtonText();
- this.updateSelectAll();
- if (this.options.disableIfEmpty && $('option', this.$select).length <= 0) {
- this.disable();
- }
- this.$select.hide().after(this.$container);
- };
- Multiselect.prototype = {
- defaults: {
- /**
- * Default text function will either print 'None selected' in case no
- * option is selected or a list of the selected options up to a length
- * of 3 selected options.
- *
- * @param {jQuery} options
- * @param {jQuery} select
- * @returns {String}
- */
- buttonText: function(options, select) {
- if (options.length === 0) {
- return this.nonSelectedText;
- }
- else if (this.allSelectedText && options.length == $('option', $(select)).length) {
- if (this.selectAllNumber) {
- return this.allSelectedText + ' (' + options.length + ')';
- }
- else {
- return this.allSelectedText;
- }
- }
- else if (options.length > this.numberDisplayed) {
- return options.length + ' ' + this.nSelectedText;
- }
- else {
- var selected = '';
- options.each(function() {
- var label = ($(this).attr('label') !== undefined) ? $(this).attr('label') : $(this).text();
- selected += label + ', ';
- });
- return selected.substr(0, selected.length - 2);
- }
- },
- /**
- * Updates the title of the button similar to the buttonText function.
- *
- * @param {jQuery} options
- * @param {jQuery} select
- * @returns {@exp;selected@call;substr}
- */
- buttonTitle: function(options, select) {
- if (options.length === 0) {
- return this.nonSelectedText;
- }
- else {
- var selected = '';
- options.each(function () {
- selected += $(this).text() + ', ';
- });
- return selected.substr(0, selected.length - 2);
- }
- },
- /**
- * Create a label.
- *
- * @param {jQuery} element
- * @returns {String}
- */
- optionLabel: function(element){
- return $(element).attr('label') || $(element).text();
- },
- /**
- * Triggered on change of the multiselect.
- *
- * Not triggered when selecting/deselecting options manually.
- *
- * @param {jQuery} option
- * @param {Boolean} checked
- */
- onChange : function(option, checked) {
- },
- /**
- * Triggered when the dropdown is shown.
- *
- * @param {jQuery} event
- */
- onDropdownShow: function(event) {
- },
- /**
- * Triggered when the dropdown is hidden.
- *
- * @param {jQuery} event
- */
- onDropdownHide: function(event) {
- },
- /**
- * Triggered after the dropdown is shown.
- *
- * @param {jQuery} event
- */
- onDropdownShown: function(event) {
- },
- /**
- * Triggered after the dropdown is hidden.
- *
- * @param {jQuery} event
- */
- onDropdownHidden: function(event) {
- },
- /**
- * Triggered on select all.
- */
- onSelectAll: function() {
- },
- enableHTML: false,
- buttonClass: 'btn btn-default',
- inheritClass: false,
- buttonWidth: 'auto',
- buttonContainer: '<div class="btn-group" />',
- dropRight: false,
- selectedClass: 'active',
- // Maximum height of the dropdown menu.
- // If maximum height is exceeded a scrollbar will be displayed.
- maxHeight: false,
- checkboxName: false,
- includeSelectAllOption: false,
- includeSelectAllIfMoreThan: 0,
- selectAllText: ' Select all',
- selectAllValue: 'multiselect-all',
- selectAllName: false,
- selectAllNumber: true,
- enableFiltering: false,
- enableCaseInsensitiveFiltering: false,
- enableClickableOptGroups: false,
- filterPlaceholder: 'Search',
- // possible options: 'text', 'value', 'both'
- filterBehavior: 'text',
- includeFilterClearBtn: true,
- preventInputChangeEvent: false,
- nonSelectedText: 'None selected',
- nSelectedText: 'selected',
- allSelectedText: 'All selected',
- numberDisplayed: 3,
- disableIfEmpty: false,
- templates: {
- button: '<button type="button" class="multiselect dropdown-toggle" data-toggle="dropdown"><span class="multiselect-selected-text"></span> <b class="caret"></b></button>',
- ul: '<ul class="multiselect-container dropdown-menu"></ul>',
- filter: '<li class="multiselect-item 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>',
- 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>',
- li: '<li><a tabindex="0"><label></label></a></li>',
- divider: '<li class="multiselect-item divider"></li>',
- liGroup: '<li class="multiselect-item multiselect-group"><label></label></li>'
- }
- },
- constructor: Multiselect,
- /**
- * Builds the container of the multiselect.
- */
- buildContainer: function() {
- this.$container = $(this.options.buttonContainer);
- this.$container.on('show.bs.dropdown', this.options.onDropdownShow);
- this.$container.on('hide.bs.dropdown', this.options.onDropdownHide);
- this.$container.on('shown.bs.dropdown', this.options.onDropdownShown);
- this.$container.on('hidden.bs.dropdown', this.options.onDropdownHidden);
- },
- /**
- * Builds the button of the multiselect.
- */
- buildButton: function() {
- this.$button = $(this.options.templates.button).addClass(this.options.buttonClass);
- if (this.$select.attr('class') && this.options.inheritClass) {
- this.$button.addClass(this.$select.attr('class'));
- }
- // Adopt active state.
- if (this.$select.prop('disabled')) {
- this.disable();
- }
- else {
- this.enable();
- }
- // Manually add button width if set.
- if (this.options.buttonWidth && this.options.buttonWidth !== 'auto') {
- this.$button.css({
- 'width' : this.options.buttonWidth,
- 'overflow' : 'hidden',
- 'text-overflow' : 'ellipsis'
- });
- this.$container.css({
- 'width': this.options.buttonWidth
- });
- }
- // Keep the tab index from the select.
- var tabindex = this.$select.attr('tabindex');
- if (tabindex) {
- this.$button.attr('tabindex', tabindex);
- }
- this.$container.prepend(this.$button);
- },
- /**
- * Builds the ul representing the dropdown menu.
- */
- buildDropdown: function() {
- // Build ul.
- this.$ul = $(this.options.templates.ul);
- if (this.options.dropRight) {
- this.$ul.addClass('pull-right');
- }
- // Set max height of dropdown menu to activate auto scrollbar.
- if (this.options.maxHeight) {
- // TODO: Add a class for this option to move the css declarations.
- this.$ul.css({
- 'max-height': this.options.maxHeight + 'px',
- 'overflow-y': 'auto',
- 'overflow-x': 'hidden'
- });
- }
- this.$container.append(this.$ul);
- },
- /**
- * Build the dropdown options and binds all nessecary events.
- *
- * Uses createDivider and createOptionValue to create the necessary options.
- */
- buildDropdownOptions: function() {
- this.$select.children().each($.proxy(function(index, element) {
- var $element = $(element);
- // Support optgroups and options without a group simultaneously.
- var tag = $element.prop('tagName')
- .toLowerCase();
- if ($element.prop('value') === this.options.selectAllValue) {
- return;
- }
- if (tag === 'optgroup') {
- this.createOptgroup(element);
- }
- else if (tag === 'option') {
- if ($element.data('role') === 'divider') {
- this.createDivider();
- }
- else {
- this.createOptionValue(element);
- }
- }
- // Other illegal tags will be ignored.
- }, this));
- // Bind the change event on the dropdown elements.
- $('li input', this.$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();
- }
- else {
- this.deselectAll();
- }
- }
- if(!isSelectAllOption){
- 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.
- $option.prop('selected', false);
- }
- }
- this.$select.change();
- this.updateButtonText();
- this.updateSelectAll();
- this.options.onChange($option, checked);
- 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) {
- $('li.multiselect-group', this.$ul).on('click', $.proxy(function(event) {
- event.stopPropagation();
- var group = $(event.target).parent();
- // Search all option in optgroup
- var $options = group.nextUntil('li.multiselect-group');
- var $visibleOptions = $options.filter(":visible:not(.disabled)");
- // check or uncheck items
- var allChecked = true;
- var optionInputs = $visibleOptions.find('input');
- optionInputs.each(function() {
- allChecked = allChecked && $(this).prop('checked');
- });
- optionInputs.prop('checked', !allChecked).trigger('change');
- }, this));
- }
- },
- /**
- * 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 value = $element.val();
- var inputType = this.options.multiple ? "checkbox" : "radio";
- var $li = $(this.options.templates.li);
- var $label = $('label', $li);
- $label.addClass(inputType);
- if (this.options.enableHTML) {
- $label.html(" " + label);
- }
- else {
- $label.text(" " + label);
- }
- var $checkbox = $('<input/>').attr('type', inputType);
- if (this.options.checkboxName) {
- $checkbox.attr('name', this.options.checkboxName);
- }
- $label.prepend($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 groupName = $(group).prop('label');
- // Add a header for the group.
- var $li = $(this.options.templates.liGroup);
- if (this.options.enableHTML) {
- $('label', $li).html(groupName);
- }
- else {
- $('label', $li).text(groupName);
- }
- if (this.options.enableClickableOptGroups) {
- $li.addClass('multiselect-group-clickable');
- }
- this.$ul.append($li);
- if ($(group).is(':disabled')) {
- $li.addClass('disabled');
- }
- // Add the options of the group.
- $('option', group).each($.proxy(function(index, element) {
- this.createOptionValue(element);
- }, this));
- },
- /**
- * Build the selct 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("filter-hidden");
- this.updateSelectAll();
- }, 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.toLowerCase().indexOf(this.query.toLowerCase()) > -1) {
- showElement = true;
- }
- else if (filterCandidate.indexOf(this.query) > -1) {
- showElement = true;
- }
- // Toggle current element (group or group item) according to showElement boolean.
- $(element).toggle(showElement).toggleClass('filter-hidden', !showElement);
- // Differentiate groups and group items.
- if ($(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('filter-hidden');
- }
- // Show all group items when group name satisfies filter.
- if (!showElement && currentGroupVisible) {
- $(element).show().removeClass('filter-hidden');
- }
- }
- }
- }, this));
- }
- this.updateSelectAll();
- }, this), 300, this);
- }, this));
- }
- }
- },
- /**
- * Unbinds the whole plugin.
- */
- destroy: function() {
- this.$container.remove();
- this.$select.show();
- this.$select.data('multiselect', null);
- },
- /**
- * Refreshs the multiselect based on the selected options of the select.
- */
- refresh: function() {
- $('option', this.$select).each($.proxy(function(index, element) {
- var $input = $('li input', this.$ul).filter(function() {
- return $(this).val() === $(element).val();
- });
- if ($(element).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) {
- $input.closest('li')
- .removeClass(this.options.selectedClass);
- }
- }
- if ($(element).is(":disabled")) {
- $input.attr('disabled', 'disabled')
- .prop('disabled', true)
- .closest('li')
- .addClass('disabled');
- }
- else {
- $input.prop('disabled', false)
- .closest('li')
- .removeClass('disabled');
- }
- }, this));
- this.updateButtonText();
- this.updateSelectAll();
- },
- /**
- * Select all options of the given values.
- *
- * If triggerOnChange is set to true, the on change event is triggered if
- * and only if one value is passed.
- *
- * @param {Array} selectValues
- * @param {Boolean} triggerOnChange
- */
- select: function(selectValues, triggerOnChange) {
- if(!$.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);
- $option.prop('selected', true);
- }
- this.updateButtonText();
- this.updateSelectAll();
- if (triggerOnChange && selectValues.length === 1) {
- this.options.onChange($option, true);
- }
- },
- /**
- * Clears all selected items.
- */
- clearSelection: function () {
- this.deselectAll(false);
- this.updateButtonText();
- this.updateSelectAll();
- },
- /**
- * 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);
- $option.prop('selected', false);
- }
- this.updateButtonText();
- this.updateSelectAll();
- if (triggerOnChange && deselectValues.length === 1) {
- this.options.onChange($option, false);
- }
- },
- /**
- * 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 allCheckboxes = $("li input[type='checkbox']:enabled", this.$ul);
- var visibleCheckboxes = allCheckboxes.filter(":visible");
- var allCheckboxesCount = allCheckboxes.length;
- var visibleCheckboxesCount = visibleCheckboxes.length;
- if(justVisible) {
- visibleCheckboxes.prop('checked', true);
- $("li:not(.divider):not(.disabled)", this.$ul).filter(":visible").addClass(this.options.selectedClass);
- }
- else {
- allCheckboxes.prop('checked', true);
- $("li:not(.divider):not(.disabled)", this.$ul).addClass(this.options.selectedClass);
- }
- if (allCheckboxesCount === visibleCheckboxesCount || justVisible === false) {
- $("option:enabled", this.$select).prop('selected', true);
- }
- else {
- var values = visibleCheckboxes.map(function() {
- return $(this).val();
- }).get();
- $("option:enabled", this.$select).filter(function(index) {
- return $.inArray($(this).val(), values) !== -1;
- }).prop('selected', true);
- }
- 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) {
- var justVisible = typeof justVisible === 'undefined' ? true : justVisible;
- if(justVisible) {
- var visibleCheckboxes = $("li input[type='checkbox']:not(:disabled)", this.$ul).filter(":visible");
- visibleCheckboxes.prop('checked', false);
- var values = visibleCheckboxes.map(function() {
- return $(this).val();
- }).get();
- $("option:enabled", this.$select).filter(function(index) {
- return $.inArray($(this).val(), values) !== -1;
- }).prop('selected', false);
- if (this.options.selectedClass) {
- $("li:not(.divider):not(.disabled)", this.$ul).filter(":visible").removeClass(this.options.selectedClass);
- }
- }
- else {
- $("li input[type='checkbox']:enabled", this.$ul).prop('checked', false);
- $("option:enabled", this.$select).prop('selected', false);
- if (this.options.selectedClass) {
- $("li:not(.divider):not(.disabled)", this.$ul).removeClass(this.options.selectedClass);
- }
- }
- },
- /**
- * 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();
- 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
- $tag.append($('<option/>').attr({
- value: subOption.value,
- label: subOption.label || subOption.value,
- title: subOption.title,
- selected: !!subOption.selected,
- disabled: !!subOption.disabled
- }));
- });
- }
- else {
- $tag = $('<option/>').attr({
- value: option.value,
- label: option.label || option.value,
- title: option.title,
- selected: !!option.selected,
- disabled: !!option.disabled
- });
- }
- $select.append($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;
- },
- /**
- * Updates the select all checkbox based on the currently displayed and selected checkboxes.
- */
- updateSelectAll: function() {
- if (this.hasSelectAll()) {
- var allBoxes = $("li:not(.multiselect-item):not(.filter-hidden) input:enabled", this.$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);
- this.options.onSelectAll();
- }
- 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 = $('li input', this.$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);
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