/**
|
* 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 = $(select);
|
|
// Placeholder via data attributes
|
if (this.$select.attr("data-placeholder")) {
|
options.nonSelectedText = this.$select.data("placeholder");
|
}
|
|
this.options = this.mergeOptions($.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
|
&& $('option', $(select)).length !== 1
|
&& this.multiple) {
|
|
if (this.selectAllNumber) {
|
return this.allSelectedText + ' (' + options.length + ')';
|
}
|
else {
|
return this.allSelectedText;
|
}
|
}
|
else if (options.length > this.numberDisplayed) {
|
return options.length + ' ' + this.nSelectedText;
|
}
|
else {
|
var selected = '';
|
var delimiter = this.delimiterText;
|
|
options.each(function() {
|
var label = ($(this).attr('label') !== undefined) ? $(this).attr('label') : $(this).text();
|
selected += label + delimiter;
|
});
|
|
return selected.substr(0, selected.length - 2);
|
}
|
},
|
/**
|
* Updates the title of the button similar to the buttonText function.
|
*
|
* @param {jQuery} options
|
* @param {jQuery} select
|
* @returns {@exp;selected@call;substr}
|
*/
|
buttonTitle: function(options, select) {
|
if (options.length === 0) {
|
return this.nonSelectedText;
|
}
|
else {
|
var selected = '';
|
var delimiter = this.delimiterText;
|
|
options.each(function () {
|
var label = ($(this).attr('label') !== undefined) ? $(this).attr('label') : $(this).text();
|
selected += label + delimiter;
|
});
|
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,
|
delimiterText: ', ',
|
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).addClass('ace');//ACE
|
|
if (this.options.checkboxName) {
|
$checkbox.attr('name', this.options.checkboxName);
|
}
|
$label.prepend($checkbox);
|
$checkbox.after('<span class="lbl" />');//ACE
|
|
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);
|
$option.prop('selected', true);
|
|
if (triggerOnChange) {
|
this.options.onChange($option, true);
|
}
|
}
|
|
this.updateButtonText();
|
this.updateSelectAll();
|
},
|
|
/**
|
* 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);
|
$option.prop('selected', false);
|
|
if (triggerOnChange) {
|
this.options.onChange($option, false);
|
}
|
}
|
|
this.updateButtonText();
|
this.updateSelectAll();
|
},
|
|
/**
|
* 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);
|
