659 lines
17 KiB
JavaScript
659 lines
17 KiB
JavaScript
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/*
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* jQuery MultiSelect UI Widget 1.11
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* Copyright (c) 2011 Eric Hynds
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*
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* http://www.erichynds.com/jquery/jquery-ui-multiselect-widget/
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*
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* Depends:
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* - jQuery 1.4.2+
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* - jQuery UI 1.8 widget factory
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*
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* Optional:
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* - jQuery UI effects
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* - jQuery UI position utility
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*
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*
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*/
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(function($, undefined){
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var multiselectID = 0;
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$.widget("ech.multiselect", {
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// default options
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options: {
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header: true,
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height: 175,
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minWidth: 225,
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classes: '',
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checkAllText: 'Check all',
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uncheckAllText: 'Uncheck all',
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noneSelectedText: 'Select options',
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selectedText: '# selected',
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selectedList: 0,
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show: '',
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hide: '',
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autoOpen: false,
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multiple: true,
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position: {}
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},
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_create: function(){
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var el = this.element.hide(),
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o = this.options;
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this.speed = $.fx.speeds._default; // default speed for effects
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this._isOpen = false; // assume no
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var
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button = (this.button = $('<button type="button"><span class="ui-icon ui-icon-triangle-2-n-s"></span></button>'))
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.addClass('ui-multiselect ui-widget ui-state-default ui-corner-all')
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.addClass( o.classes )
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.attr({ 'title':el.attr('title'), 'aria-haspopup':true, 'tabIndex':el.attr('tabIndex') })
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.insertAfter( el ),
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buttonlabel = (this.buttonlabel = $('<span />'))
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.html( o.noneSelectedText )
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.appendTo( button ),
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menu = (this.menu = $('<div />'))
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.addClass('ui-multiselect-menu ui-widget ui-widget-content ui-corner-all')
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.addClass( o.classes )
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.insertAfter( button ),
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header = (this.header = $('<div />'))
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.addClass('ui-widget-header ui-corner-all ui-multiselect-header ui-helper-clearfix')
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.appendTo( menu ),
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headerLinkContainer = (this.headerLinkContainer = $('<ul />'))
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.addClass('ui-helper-reset')
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.html(function(){
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if( o.header === true ){
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return '<li><a class="ui-multiselect-all" href="#"><span class="ui-icon ui-icon-check"></span><span>' + o.checkAllText + '</span></a></li><li><a class="ui-multiselect-none" href="#"><span class="ui-icon ui-icon-closethick"></span><span>' + o.uncheckAllText + '</span></a></li>';
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} else if(typeof o.header === "string"){
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return '<li>' + o.header + '</li>';
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} else {
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return '';
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}
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})
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.append('<li class="ui-multiselect-close"><a href="#" class="ui-multiselect-close"><span class="ui-icon ui-icon-circle-close"></span></a></li>')
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.appendTo( header ),
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checkboxContainer = (this.checkboxContainer = $('<ul />'))
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.addClass('ui-multiselect-checkboxes ui-helper-reset')
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.appendTo( menu );
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// perform event bindings
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this._bindEvents();
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// build menu
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this.refresh( true );
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// some addl. logic for single selects
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if( !o.multiple ){
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menu.addClass('ui-multiselect-single');
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}
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},
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_init: function(){
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if( this.options.header === false ){
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this.header.hide();
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}
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if( !this.options.multiple ){
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this.headerLinkContainer.find('.ui-multiselect-all, .ui-multiselect-none').hide();
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}
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if( this.options.autoOpen ){
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this.open();
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}
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if( this.element.is(':disabled') ){
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this.disable();
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}
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},
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refresh: function( init ){
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var el = this.element,
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o = this.options,
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menu = this.menu,
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checkboxContainer = this.checkboxContainer,
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optgroups = [],
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html = [],
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id = el.attr('id') || multiselectID++; // unique ID for the label & option tags
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// build items
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this.element.find('option').each(function( i ){
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var $this = $(this),
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parent = this.parentNode,
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title = this.innerHTML,
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description = this.title,
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value = this.value,
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inputID = this.id || 'ui-multiselect-'+id+'-option-'+i,
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isDisabled = this.disabled,
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isSelected = this.selected,
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labelClasses = ['ui-corner-all'],
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optLabel;
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// is this an optgroup?
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if( parent.tagName.toLowerCase() === 'optgroup' ){
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optLabel = parent.getAttribute('label');
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// has this optgroup been added already?
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if( $.inArray(optLabel, optgroups) === -1 ){
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html.push('<li class="ui-multiselect-optgroup-label"><a href="#">' + optLabel + '</a></li>');
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optgroups.push( optLabel );
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}
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}
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if( isDisabled ){
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labelClasses.push('ui-state-disabled');
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}
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// browsers automatically select the first option
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// by default with single selects
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if( isSelected && !o.multiple ){
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labelClasses.push('ui-state-active');
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}
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html.push('<li class="' + (isDisabled ? 'ui-multiselect-disabled' : '') + '">');
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// create the label
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html.push('<label for="'+inputID+'" title="'+description+'" class="'+labelClasses.join(' ')+ '">');
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html.push('<input id="'+inputID+'" name="multiselect_'+id+'" type="'+(o.multiple ? "checkbox" : "radio")+'" value="'+value+'" title="'+title+'"');
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// pre-selected?
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if( isSelected ){
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html.push(' checked="checked"');
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html.push(' aria-selected="true"');
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}
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// disabled?
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if( isDisabled ){
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html.push(' disabled="disabled"');
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html.push(' aria-disabled="true"');
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}
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// add the title and close everything off
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html.push(' /><span>' + title + '</span></label></li>');
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});
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// insert into the DOM
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checkboxContainer.html( html.join('') );
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// cache some moar useful elements
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this.labels = menu.find('label');
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// set widths
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this._setButtonWidth();
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this._setMenuWidth();
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// remember default value
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this.button[0].defaultValue = this.update();
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// broadcast refresh event; useful for widgets
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if( !init ){
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this._trigger('refresh');
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}
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},
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// updates the button text. call refresh() to rebuild
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update: function(){
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var o = this.options,
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$inputs = this.labels.find('input'),
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$checked = $inputs.filter(':checked'),
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numChecked = $checked.length,
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value;
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if( numChecked === 0 ){
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value = o.noneSelectedText;
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} else {
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if($.isFunction( o.selectedText )){
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value = o.selectedText.call(this, numChecked, $inputs.length, $checked.get());
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} else if( /\d/.test(o.selectedList) && o.selectedList > 0 && numChecked <= o.selectedList){
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value = $checked.map(function(){ return this.title; }).get().join(', ');
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} else {
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value = o.selectedText.replace('#', numChecked).replace('#', $inputs.length);
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}
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}
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this.buttonlabel.html( value );
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return value;
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},
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// binds events
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_bindEvents: function(){
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var self = this, button = this.button;
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function clickHandler(){
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self[ self._isOpen ? 'close' : 'open' ]();
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return false;
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}
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// webkit doesn't like it when you click on the span :(
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button
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.find('span')
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.bind('click.multiselect', clickHandler);
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// button events
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button.bind({
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click: clickHandler,
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keypress: function( e ){
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switch(e.which){
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case 27: // esc
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case 38: // up
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case 37: // left
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self.close();
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break;
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case 39: // right
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case 40: // down
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self.open();
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break;
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}
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},
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mouseenter: function(){
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if( !button.hasClass('ui-state-disabled') ){
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$(this).addClass('ui-state-hover');
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}
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},
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mouseleave: function(){
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$(this).removeClass('ui-state-hover');
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},
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focus: function(){
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if( !button.hasClass('ui-state-disabled') ){
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$(this).addClass('ui-state-focus');
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}
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},
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blur: function(){
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$(this).removeClass('ui-state-focus');
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}
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});
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// header links
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this.header
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.delegate('a', 'click.multiselect', function( e ){
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// close link
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if( $(this).hasClass('ui-multiselect-close') ){
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self.close();
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// check all / uncheck all
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} else {
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self[ $(this).hasClass('ui-multiselect-all') ? 'checkAll' : 'uncheckAll' ]();
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}
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e.preventDefault();
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});
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// optgroup label toggle support
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this.menu
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.delegate('li.ui-multiselect-optgroup-label a', 'click.multiselect', function( e ){
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e.preventDefault();
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var $this = $(this),
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$inputs = $this.parent().nextUntil('li.ui-multiselect-optgroup-label').find('input:visible:not(:disabled)'),
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nodes = $inputs.get(),
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label = $this.parent().text();
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// trigger event and bail if the return is false
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if( self._trigger('beforeoptgrouptoggle', e, { inputs:nodes, label:label }) === false ){
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return;
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}
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// toggle inputs
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self._toggleChecked(
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$inputs.filter(':checked').length !== $inputs.length,
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$inputs
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);
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self._trigger('optgrouptoggle', e, {
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inputs: nodes,
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label: label,
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checked: nodes[0].checked
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});
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})
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.delegate('label', 'mouseenter.multiselect', function(){
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if( !$(this).hasClass('ui-state-disabled') ){
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self.labels.removeClass('ui-state-hover');
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$(this).addClass('ui-state-hover').find('input').focus();
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}
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})
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.delegate('label', 'keydown.multiselect', function( e ){
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e.preventDefault();
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switch(e.which){
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case 9: // tab
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case 27: // esc
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self.close();
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break;
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case 38: // up
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case 40: // down
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case 37: // left
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case 39: // right
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self._traverse(e.which, this);
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break;
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case 13: // enter
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$(this).find('input')[0].click();
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break;
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}
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})
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.delegate('input[type="checkbox"], input[type="radio"]', 'click.multiselect', function( e ){
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var $this = $(this),
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val = this.value,
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checked = this.checked,
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tags = self.element.find('option');
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// bail if this input is disabled or the event is cancelled
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if( this.disabled || self._trigger('click', e, { value:val, text:this.title, checked:checked }) === false ){
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e.preventDefault();
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return;
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}
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// toggle aria state
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$this.attr('aria-selected', checked);
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// change state on the original option tags
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tags.each(function(){
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if( this.value === val ){
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this.selected = checked;
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} else if( !self.options.multiple ){
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this.selected = false;
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}
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});
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// some additional single select-specific logic
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if( !self.options.multiple ){
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self.labels.removeClass('ui-state-active');
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$this.closest('label').toggleClass('ui-state-active', checked );
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// close menu
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self.close();
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}
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// fire change on the select box
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self.element.trigger("change");
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// setTimeout is to fix multiselect issue #14 and #47. caused by jQuery issue #3827
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// http://bugs.jquery.com/ticket/3827
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setTimeout($.proxy(self.update, self), 10);
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});
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// close each widget when clicking on any other element/anywhere else on the page
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$(document).bind('mousedown.multiselect', function( e ){
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if(self._isOpen && !$.contains(self.menu[0], e.target) && !$.contains(self.button[0], e.target) && e.target !== self.button[0]){
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self.close();
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}
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});
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// deal with form resets. the problem here is that buttons aren't
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// restored to their defaultValue prop on form reset, and the reset
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// handler fires before the form is actually reset. delaying it a bit
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|
|
// gives the form inputs time to clear.
|
||
|
|
$(this.element[0].form).bind('reset.multiselect', function(){
|
||
|
|
setTimeout(function(){ self.update(); }, 10);
|
||
|
|
});
|
||
|
|
},
|
||
|
|
|
||
|
|
// set button width
|
||
|
|
_setButtonWidth: function(){
|
||
|
|
var width = this.element.outerWidth(),
|
||
|
|
o = this.options;
|
||
|
|
|
||
|
|
if( /\d/.test(o.minWidth) && width < o.minWidth){
|
||
|
|
width = o.minWidth;
|
||
|
|
}
|
||
|
|
|
||
|
|
// set widths
|
||
|
|
this.button.width( width );
|
||
|
|
},
|
||
|
|
|
||
|
|
// set menu width
|
||
|
|
_setMenuWidth: function(){
|
||
|
|
var m = this.menu,
|
||
|
|
width = this.button.outerWidth()-
|
||
|
|
parseInt(m.css('padding-left'),10)-
|
||
|
|
parseInt(m.css('padding-right'),10)-
|
||
|
|
parseInt(m.css('border-right-width'),10)-
|
||
|
|
parseInt(m.css('border-left-width'),10);
|
||
|
|
|
||
|
|
m.width( width || this.button.outerWidth() );
|
||
|
|
},
|
||
|
|
|
||
|
|
// move up or down within the menu
|
||
|
|
_traverse: function( which, start ){
|
||
|
|
var $start = $(start),
|
||
|
|
moveToLast = which === 38 || which === 37,
|
||
|
|
|
||
|
|
// select the first li that isn't an optgroup label / disabled
|
||
|
|
$next = $start.parent()[moveToLast ? 'prevAll' : 'nextAll']('li:not(.ui-multiselect-disabled, .ui-multiselect-optgroup-label)')[ moveToLast ? 'last' : 'first']();
|
||
|
|
|
||
|
|
// if at the first/last element
|
||
|
|
if( !$next.length ){
|
||
|
|
var $container = this.menu.find('ul:last');
|
||
|
|
|
||
|
|
// move to the first/last
|
||
|
|
this.menu.find('label')[ moveToLast ? 'last' : 'first' ]().trigger('mouseover');
|
||
|
|
|
||
|
|
// set scroll position
|
||
|
|
$container.scrollTop( moveToLast ? $container.height() : 0 );
|
||
|
|
|
||
|
|
} else {
|
||
|
|
$next.find('label').trigger('mouseover');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// This is an internal function to toggle the checked property and
|
||
|
|
// other related attributes of a checkbox.
|
||
|
|
//
|
||
|
|
// The context of this function should be a checkbox; do not proxy it.
|
||
|
|
_toggleCheckbox: function( prop, flag ){
|
||
|
|
return function(){
|
||
|
|
!this.disabled && (this[ prop ] = flag);
|
||
|
|
|
||
|
|
if( flag ){
|
||
|
|
this.setAttribute('aria-selected', true);
|
||
|
|
} else {
|
||
|
|
this.removeAttribute('aria-selected');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
_toggleChecked: function( flag, group ){
|
||
|
|
var $inputs = (group && group.length) ?
|
||
|
|
group :
|
||
|
|
this.labels.find('input'),
|
||
|
|
|
||
|
|
self = this;
|
||
|
|
|
||
|
|
// toggle state on inputs
|
||
|
|
$inputs.each(this._toggleCheckbox('checked', flag));
|
||
|
|
|
||
|
|
// update button text
|
||
|
|
this.update();
|
||
|
|
|
||
|
|
// gather an array of the values that actually changed
|
||
|
|
var values = $inputs.map(function(){
|
||
|
|
return this.value;
|
||
|
|
}).get();
|
||
|
|
|
||
|
|
// toggle state on original option tags
|
||
|
|
this.element
|
||
|
|
.find('option')
|
||
|
|
.each(function(){
|
||
|
|
if( !this.disabled && $.inArray(this.value, values) > -1 ){
|
||
|
|
self._toggleCheckbox('selected', flag).call( this );
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// trigger the change event on the select
|
||
|
|
if( $inputs.length ) {
|
||
|
|
this.element.trigger("change");
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
_toggleDisabled: function( flag ){
|
||
|
|
this.button
|
||
|
|
.attr({ 'disabled':flag, 'aria-disabled':flag })[ flag ? 'addClass' : 'removeClass' ]('ui-state-disabled');
|
||
|
|
|
||
|
|
this.menu
|
||
|
|
.find('input')
|
||
|
|
.attr({ 'disabled':flag, 'aria-disabled':flag })
|
||
|
|
.parent()[ flag ? 'addClass' : 'removeClass' ]('ui-state-disabled');
|
||
|
|
|
||
|
|
this.element
|
||
|
|
.attr({ 'disabled':flag, 'aria-disabled':flag });
|
||
|
|
},
|
||
|
|
|
||
|
|
// open the menu
|
||
|
|
open: function( e ){
|
||
|
|
var self = this,
|
||
|
|
button = this.button,
|
||
|
|
menu = this.menu,
|
||
|
|
speed = this.speed,
|
||
|
|
o = this.options;
|
||
|
|
|
||
|
|
// bail if the multiselectopen event returns false, this widget is disabled, or is already open
|
||
|
|
if( this._trigger('beforeopen') === false || button.hasClass('ui-state-disabled') || this._isOpen ){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var $container = menu.find('ul:last'),
|
||
|
|
effect = o.show,
|
||
|
|
pos = button.position();
|
||
|
|
|
||
|
|
// figure out opening effects/speeds
|
||
|
|
if( $.isArray(o.show) ){
|
||
|
|
effect = o.show[0];
|
||
|
|
speed = o.show[1] || self.speed;
|
||
|
|
}
|
||
|
|
|
||
|
|
// set the scroll of the checkbox container
|
||
|
|
$container.scrollTop(0).height(o.height);
|
||
|
|
|
||
|
|
// position and show menu
|
||
|
|
if( $.ui.position && !$.isEmptyObject(o.position) ){
|
||
|
|
o.position.of = o.position.of || button;
|
||
|
|
|
||
|
|
menu
|
||
|
|
.show()
|
||
|
|
.position( o.position )
|
||
|
|
.hide()
|
||
|
|
.show( effect, speed );
|
||
|
|
|
||
|
|
// if position utility is not available...
|
||
|
|
} else {
|
||
|
|
menu.css({
|
||
|
|
top: pos.top+button.outerHeight(),
|
||
|
|
left: pos.left
|
||
|
|
}).show( effect, speed );
|
||
|
|
}
|
||
|
|
|
||
|
|
// select the first option
|
||
|
|
// triggering both mouseover and mouseover because 1.4.2+ has a bug where triggering mouseover
|
||
|
|
// will actually trigger mouseenter. the mouseenter trigger is there for when it's eventually fixed
|
||
|
|
this.labels.eq(0).trigger('mouseover').trigger('mouseenter').find('input').trigger('focus');
|
||
|
|
|
||
|
|
button.addClass('ui-state-active');
|
||
|
|
this._isOpen = true;
|
||
|
|
this._trigger('open');
|
||
|
|
},
|
||
|
|
|
||
|
|
// close the menu
|
||
|
|
close: function(){
|
||
|
|
if(this._trigger('beforeclose') === false){
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var o = this.options, effect = o.hide, speed = this.speed;
|
||
|
|
|
||
|
|
// figure out opening effects/speeds
|
||
|
|
if( $.isArray(o.hide) ){
|
||
|
|
effect = o.hide[0];
|
||
|
|
speed = o.hide[1] || this.speed;
|
||
|
|
}
|
||
|
|
|
||
|
|
this.menu.hide(effect, speed);
|
||
|
|
this.button.removeClass('ui-state-active').trigger('blur').trigger('mouseleave');
|
||
|
|
this._isOpen = false;
|
||
|
|
this._trigger('close');
|
||
|
|
},
|
||
|
|
|
||
|
|
enable: function(){
|
||
|
|
this._toggleDisabled(false);
|
||
|
|
},
|
||
|
|
|
||
|
|
disable: function(){
|
||
|
|
this._toggleDisabled(true);
|
||
|
|
},
|
||
|
|
|
||
|
|
checkAll: function( e ){
|
||
|
|
this._toggleChecked(true);
|
||
|
|
this._trigger('checkAll');
|
||
|
|
},
|
||
|
|
|
||
|
|
uncheckAll: function(){
|
||
|
|
this._toggleChecked(false);
|
||
|
|
this._trigger('uncheckAll');
|
||
|
|
},
|
||
|
|
|
||
|
|
getChecked: function(){
|
||
|
|
return this.menu.find('input').filter(':checked');
|
||
|
|
},
|
||
|
|
|
||
|
|
destroy: function(){
|
||
|
|
// remove classes + data
|
||
|
|
$.Widget.prototype.destroy.call( this );
|
||
|
|
|
||
|
|
this.button.remove();
|
||
|
|
this.menu.remove();
|
||
|
|
this.element.show();
|
||
|
|
|
||
|
|
return this;
|
||
|
|
},
|
||
|
|
|
||
|
|
isOpen: function(){
|
||
|
|
return this._isOpen;
|
||
|
|
},
|
||
|
|
|
||
|
|
widget: function(){
|
||
|
|
return this.menu;
|
||
|
|
},
|
||
|
|
|
||
|
|
// react to option changes after initialization
|
||
|
|
_setOption: function( key, value ){
|
||
|
|
var menu = this.menu;
|
||
|
|
|
||
|
|
switch(key){
|
||
|
|
case 'header':
|
||
|
|
menu.find('div.ui-multiselect-header')[ value ? 'show' : 'hide' ]();
|
||
|
|
break;
|
||
|
|
case 'checkAllText':
|
||
|
|
menu.find('a.ui-multiselect-all span').eq(-1).text(value);
|
||
|
|
break;
|
||
|
|
case 'uncheckAllText':
|
||
|
|
menu.find('a.ui-multiselect-none span').eq(-1).text(value);
|
||
|
|
break;
|
||
|
|
case 'height':
|
||
|
|
menu.find('ul:last').height( parseInt(value,10) );
|
||
|
|
break;
|
||
|
|
case 'minWidth':
|
||
|
|
this.options[ key ] = parseInt(value,10);
|
||
|
|
this._setButtonWidth();
|
||
|
|
this._setMenuWidth();
|
||
|
|
break;
|
||
|
|
case 'selectedText':
|
||
|
|
case 'selectedList':
|
||
|
|
case 'noneSelectedText':
|
||
|
|
this.options[key] = value; // these all needs to update immediately for the update() call
|
||
|
|
this.update();
|
||
|
|
break;
|
||
|
|
case 'classes':
|
||
|
|
menu.add(this.button).removeClass(this.options.classes).addClass(value);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
$.Widget.prototype._setOption.apply( this, arguments );
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
})(jQuery);
|